JPH10192015A - Middle clasp structure of accessories - Google Patents

Abstract

(57) [Problem] To provide an inexpensive manufacturing of a clasp structure having a narrow width along the transverse direction of an accessory and a thin thickness in the front and back direction of the accessory. SOLUTION: Engaging means for releasably engaging a folding part 2X-1 and an outer plate 1 is a folding part 2X-1 by a spring.
The engaging projection 46 urged outwardly, the engaging recess 17 formed in the side wall 9 of the outer plate 1, and the path from the outside of the outer plate 1 to the inside of the engaging recess 17 are repeated. And a movable push button 21. By folding the folded portion 2X-1 onto the outer plate 1, the engaging projection 46 is inserted into the engaging recess 17 and engaged. When the push button 21 is pressed inward of the outer plate 1, the push button 21 presses the engagement protrusion 46, and the engagement protrusion 46 is disengaged from the engagement recess 17.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clasp structure disposed between one end and the other end of an accessory,
The present invention relates to a one-touch type clasp structure that is opened by pressing a push button. INDUSTRIAL APPLICABILITY The present invention is suitable for a bracelet of a bracelet or a wristwatch band wound around a wrist or the like.

[0002]

2. Description of the Related Art Japanese Patent Laid-Open Publication No. 8-316 and Japanese Laid-open Patent Publication No. A clasp structure described in 236506 is known.

FIG. 42 and FIG. 43 show a clasp structure described in Japanese Patent Application Laid-Open No. 8-316. The middle clasp is the outer plate 1
00, one middle plate 101 foldably connected to one end of the outer plate 100, and the other middle plate 102 foldably connected to the other end of the outer plate 100. Skin 1
00, a hollow portion 103 along the short direction of the accessory
Is formed. The hollow portions 1 are provided in the thick portions 104 located on both sides in the short direction of the accessory at the center of the outer plate 100.
Holes 105 are formed on both sides of the hole 03.

Also, one and the other push buttons 10
6A and 106B are a pair of hook-shaped locking portions 108A and 108B connected to the pressing portion 107, and these locking portions 1
08A and 108B.

[0005] Then, the locking portions 108A and 108B of one push button 106A are inserted into the hole 105 on one side from the outside, and the rod portion 109 is inserted into the hollow portion 103. Similarly, the locking portions 108A and 108B of the other push button 106B are connected to the hole 1 on the other side from the outside.
05, and the rod portion 109 is inserted into the hollow portion 103. An elastic member 110 is inserted into the hollow portion 103, and urges one and the other push buttons 106A and 106B outward. Thus, one and the other push button 1
06A and 106B are attached to the outer plate 100.

A locking groove 111 is provided at the other end of the one middle plate 101, and one end of an accessory 112 is foldably connected to the other end of the middle plate 101.
These constitute the first folded portion 113. Also,
On the other end of the other middle plate 102, a locking groove 114 is provided. The other end of the middle plate 102 is foldably connected to the other end of the accessory 112, and the second Of the folding part 115 of FIG.

[0007] Then, the first folded portion 113 is attached to the outer plate 10.
By folding to the 0 side, the locking groove 111 provided in one middle plate 101 is
A and 106B are locked to locking portions 108A and 108B.
Similarly, by folding the second folded portion 115 toward the outer plate 100, the engaging groove 114 provided in the other middle plate 102 is engaged with the engaging portions 108A, 108B of the push buttons 106A, 106B. And one end and the other end of the accessory 112 are connected (closed).

In order to release one end and the other end of the accessory 112, the push buttons 10 and 10
6A and 106B are pushed in, and one and the other push buttons 106A and 106B are
10 against the center of the outer panel 100. Thereby, the locking portion 108 of the locking groove 111 of one of the middle plates 101
A, Release the lock on 108B. And the other middle plate 1
The locking of the locking groove 114 of the No. 02 to the locking portions 108A and 108B is released. Then, the first and second folding portions 113,
115 is expanded.

FIG. 44 and FIG. 45 show a clasp structure described in Japanese Patent Application Laid-Open No. Hei 7-236506. The clasp is an outer plate 120, one middle plate 121 foldably connected to one end of the outer plate 120, the other middle plate 122 foldably connected to the other end of the outer plate 120, One front plate 123, which is foldably connected to the other end of one middle plate 121 and has a locking projection 133 </ b> A, and the other middle plate 1.
22 is foldably connected to the other end of locking projection 1
33B and the other front plate 124 having 33B. And
One end of the accessory 132 is connected to one of the front plates 123 to form a first folded portion 135. The other top plate 1
The other end of the accessory 132 is connected to 24, and a second folded portion 136 is formed.

At the center of the outer plate 120, a hollow portion 125 extending along the width direction of the accessory and a pair of window portions 126A, 1A are formed.
An inner lid 127 having 26B is provided. One and other push buttons 128A and 128B are inserted into the hollow portion 125 of the inner lid 127.

One push button 128A has locking portions 129A and 129B at its inner end. Also, the other push button 128B has a locking portion 13 at its inner end.
0A and 130B. In the hollow portion 125, the locking portion 129A and the locking portion 130A constitute one button side locking portion 140. Locking portion 129B is locking portion 1
30B constitutes the other button-side engaging portion 141. Then, one and the other push buttons 128A, 128
B is urged by coil springs 131A and 131B so as to be separated from each other. One of the button-side locking portions 140 is connected to the window 126A, and the other button-side locking portion 141 is connected to the window portion 126A.
Are opposed to the window 126B in the front and back directions of the accessory 132, respectively.

Then, the first folded portion 135 is connected to the outer plate 12.
By folding to the 0 side, the locking projection 133A provided on the one front plate 123 is locked to the one button side locking portion 140 via the window 126A. By folding the second folded portion 136 toward the outer plate 120, the engaging protrusion 133B provided on the other front plate 124 is engaged with the other button-side engaging portion 141 via the window 126B. And accessories 13
One end and the other end of 2 are connected (closed).

In order to release one end and the other end of the accessory 132, the one and the other push buttons 12 are used.
8A and 128B, the one and other push buttons 128A and 128B are moved toward the center of the outer plate 120 against the springs 131A and 131B. Thereby, the locking of the locking protrusion 133A of the one front plate 123 to the one button-side locking portion 140 is released. And the other front plate 12
4 button-side locking portion 141 of the fourth locking projection 133B
Release the lock. Then, the first and second folding parts 1
35 and 136 are expanded.

[0014]

In the clasp structure of the accessory disclosed in Japanese Patent Application Laid-Open No. 8-316, an outer plate 10 is provided.
0 and one push button 106
The locking portions 108A and 108B of the first and second folding portions 113 and 114 are inserted into and engaged with the locking grooves 111 and 114 of the first and second folding portions 113 and 114, respectively. This requires an elastic member 110 that urges the one and other push buttons 106A, 106B outward of the outer plate 100. This elastic member 110
Are one and the other push buttons 106A, 106B
Push buttons 106A, 106A coaxially along the movement direction of the
It must be provided adjacent to B.

To this end, the outer panel 100 is provided with one and the other push buttons 106A, 106B and the elastic member 110.
And a structure for holding both of them is required, resulting in a complicated structure. As a result, the processing load on the outer plate 100 is increased, and the cost of the clasp structure is increased.

Also, one and the other push buttons 10
In order to make the 6A, 106B and the elastic member 110 adjacent to each other along the short direction of the accessory, the outer plate 100 must be elongated in the short direction of the accessory. In addition, one and the other push buttons 106A, 106B and the first and second folding portions 1
Since the members 13 and 115 are vertically overlapped and engaged with each other along the front and back directions of the accessory 112, the thickness along the front and back directions must be increased. For this reason, it has not been possible to create a small clasp structure that fits thin accessories, such as a bracelet for women.

Also, one and the other push buttons 10
6A and 106B are divided into first and second folding portions 113 and 115.
First and second engagement grooves 111 and 114
Hook-shaped locking portions 108A, which resemble fishing hooks, which are hooked into the locking grooves 111, 114 of the folded portions 113, 115,
108B with one and the other push buttons 106A, 1
06B. It is extremely difficult to form such a hook, and it is not suitable for mass production because the processing load of one and the other push buttons 106A and 106B is large. Further, when the first and second folding portions 113 and 115 are opened from the outer plate 100, the hook-shaped locking portions 108A and 108B of the one and other push buttons 106A and 106B are exposed on the front side of the outer plate 100, There has been a problem that the appearance of the jewelry is significantly impaired.

Further, in the clasp structure of the accessory disclosed in Japanese Patent Application Laid-Open No. 7-236506, one and the other push buttons 128A and 128B and the coil springs 131A and 131B as elastic means are provided with an inner lid 127. The structure is housed inside. The inner lid 127 prevents the hook-shaped button-side engaging portions 140 and 141 of the one and other push buttons 128A and 128B from being exposed, and at the same time, the inner lid 127 prevents the one and the other push buttons 12A and 128B from being exposed.
8A, 128B also serves as a guide means for sliding along the transverse direction of the accessory. Therefore, there is no need to provide a separate guide means. Although having such advantages, it has a drawback overlapping with the clasp structure disclosed in Japanese Patent Application Laid-Open No. 8-316.

That is, one and the other push buttons 128A, 128B and the first and second folds 135, 1
Since the 36 front lids 123 and 124 overlap with each other vertically along the front and back directions of the accessory, the thickness along the front and back directions must be increased. Further, it is necessary to form the hook-shaped button side locking portions 140, 141 on the one and other push buttons 128A, 128B, and the shapes of the one and other push buttons 128A, 128B must be complicated. Absent. In particular, it is necessary to fix the mushroom-shaped locking projections 133A and 133B to be engaged with the button-side locking portions 140 and 141 on the back surfaces of the front lids 123 and 124 by brazing or the like. Therefore, the locking projection 133A,
There is a problem that not only is the processing load for fixing the 133B to the front lid one by one large, but also, when an excessive external force is applied, the locking projections come off from the front lid.

The present invention has been made in view of the above problems, and a first object of the present invention is to reduce the width of the accessory in the width direction and to reduce the thickness of the accessory in the front and back directions. An object of the present invention is to provide a clasp structure of an accessory that can be manufactured thinly and inexpensively.

A second object of the present invention is to provide a middle clasp structure which is manufactured by punching a plate material by a press and bending by a press, and which can be manufactured simply and inexpensively solely by press working. It is in.

[0022]

In order to achieve the above-mentioned object, a clasp structure of an accessory according to the present invention has the characteristic structure described in claim 1.

With this configuration, when the folding portion is folded on the outer plate, the engaging projections arranged on the folding portion are inserted into and engaged with the engaging recesses formed in the outer plate. The one end and the other end of the accessory are locked by the outer panel. In this case, the engaging projection presses the push button push button, and the push button moves toward the outside of the outer plate.

Next, when the push button is pressed toward the inside of the outer plate, the push button moves into the engaging recess, and the engaging projection located inside the engaging recess faces the inside of the outer plate. Press. Then, the engagement protrusion moves toward the inside of the folding portion along the short direction of the accessory, against the urging force of the elastic means. Therefore, the engagement protrusion is detached from the inside of the engagement recess, and the engagement between the engagement protrusion and the engagement recess is released.
Then, when the folded portion is expanded from the outer plate, one end and the other end of the accessory are expanded.

As described above, the swoosh button does not need to be provided with a hook portion that engages with the fold portion as in the related art. Therefore, the push button can be formed in a simple shape, and the push button can be easily and inexpensively manufactured. In addition, since it is not necessary to provide an elastic means for urging the push button outward in parallel with the push button along the short direction of the accessory, the width of the clasp structure along the short direction of the accessory is reduced. be able to.

In the clasp structure of the present invention, the engaging projection of the folding part and the engaging recess of the outer plate are engaged in parallel along the width direction of the accessory. Therefore, the thickness of the accessory in the front and back direction can be reduced as compared with the conventional middle clasp in which the push button and the folding portion are vertically overlapped and engaged along the front and back direction of the accessory.

As described above, according to the first aspect of the present invention, it is possible to inexpensively manufacture a middle clasp structure in which the width along the width direction of the accessory is narrow and the thickness of the accessory in the front and back directions is small.
For example, it is possible to provide a small-sized clasp structure that is compatible with slender accessories such as women's bracelets at low cost.

According to a second aspect of the present invention, there is provided the clasp of the accessory according to the first aspect, wherein the outer plate extends along the longitudinal direction of the accessory. A side wall portion formed so as to rise from the edge portion toward the front side of the accessory and located outside the folded portion along the short direction of the accessory, and the inside of the side plate facing inward of the outer plate. The engaging recess is formed on a side surface, and the push button is disposed on an outer surface of the side wall portion facing outward of the outer plate.

With this configuration, when the folded portion is folded on the outer plate, the folded portion is located inside the side wall portion of the outer plate along the transverse direction of the accessory. Then, the engagement protrusion of the folding part is inserted into and engaged with the inside of the engagement recess formed on the inner surface of the side wall. Therefore, the folded portion is locked to the outer plate, and one end and the other end of the accessory can be closed.

Then, when the push button arranged on the outer surface of the side wall is pressed toward the inside of the side wall, the push button presses the engagement protrusion located inside the engagement recess, and the engagement protrusion is pressed. The part moves inward of the folding part along the short direction of the accessory against the biasing force of the elastic means. Therefore, the engagement protrusion is detached from the inside of the engagement recess, and the engagement between the engagement protrusion and the engagement recess is released. Therefore, if the folded portion is opened from the outer plate, one end and the other end of the accessory can be opened.

As described above, according to the second aspect of the present invention, the engaging projection of the folding portion, the engaging recess of the side wall of the outer plate, and the push button are arranged side by side in the transverse direction of the accessory, and the accessories are mutually aligned. It does not overlap vertically along the front and back directions.
Therefore, it is possible to reduce the thickness in the front and back direction of the accessory having the middle clasp structure.

According to a third aspect of the present invention, there is provided the clasp of the accessory according to the second aspect of the present invention, wherein the folded portion has a buckle structure along the longitudinal direction of the accessory. A pair of the engaging protrusions respectively arranged on the edge, a pair of the side walls formed to stand on both sides along the longitudinal direction of the accessory in the outer plate, and a pair of the side walls formed on each of the side walls; Said engagement recess,
And the push button provided on each of the side wall portions.

With this configuration, when the folded portion is folded on the outer plate, the folded portion is located between both side walls of the outer plate. Therefore, each of the two engaging projections of the folded portion is inserted into and engaged with each of the engaging concave portions formed on each of the two side wall portions. Therefore, the folded portion is locked to the outer plate, and one end and the other end of the accessory can be closed.

When the push buttons arranged on each of the two side walls are pressed inwardly, the push buttons press each of the engagement protrusions located inside the engagement recess. Then
The engagement protrusion is detached from the inside of the engagement recess, and the engagement between the engagement protrusion and the engagement recess is released.

As described above, the clasp structure can be formed as a double push type clasp structure having two push buttons. To release the fold from the skin, the two push buttons must be pressed together. Even if one of the push buttons is pressed to remove the case of one of the engagement protrusions and the engagement recess, the engagement between the other engagement protrusion and the engagement recess is maintained. Therefore, the folded portion cannot be opened from the outer plate only by pressing one of the push buttons. This means that the accessory does not fall off even if one of the push buttons is pressed by an careless external load. That is, it is possible to prevent the accessory from unintentionally falling off.

In order to achieve the above object, the clasp structure of the accessory according to the fourth aspect of the present invention provides the clasp structure of the second or third aspect, wherein When the first folded portion, the other middle plate is connected between the other end of the outer plate and the other end of the accessory, and the other middle plate and the other end of the accessory are connected by the other middle plate. 2, when the engaging projection is a first engaging projection,
The second folded portion is urged outward by the elastic means to the outside of the other folded portion along the short direction of the accessory.
Are provided, and the first engagement projection and the second engagement projection are provided.
When the push button is pressed inward of the side wall portion, the push button is positioned inside the engagement recess when the push button is positioned inside the engagement recess. The first engagement protrusion and the second engagement protrusion are pressed to separate the first engagement protrusion and the second engagement protrusion from the engagement recess.

With this configuration, when the first and second folds are folded on the outer plate, both the first and second folds are located inside the side wall of the outer plate along the width direction of the accessory. I do.
Then, the first engaging projection of the first folding part and the second
The second engaging projections of the folded portions are inserted into and engaged with the engaging recesses formed on the inner surface of the side wall. Therefore, the first and second folds are locked to the outer plate, and one end and the other end of the accessory can be closed.

At this time, the first and second engaging projections press the push button, and the push button moves toward the outside of the outer plate. When the push button arranged on the outer surface of the side wall is pressed toward the inside of the side wall, the push button presses the first and second engagement projections located inside the engagement recess. Then, the first and second engaging projections are opposed to the first and second engaging protrusions along the short direction of the accessory, against the biasing force of the elastic means.
Move toward the inside of the folding part. Therefore, the first and second engagement protrusions are separated from the inside of the engagement recesses, and the first and second engagement protrusions are disengaged from the engagement recesses. Therefore, if the first and second folds are opened from the outer plate, one end and the other end of the accessory can be opened.

Thus, the clasp structure can be made to be a double door type. Further, the engagement between the first and second engagement protrusions and the engagement recesses can be released by simply pressing one push button. That is, by simply pressing one push button, the engagement between the first and second folds and the outer plate is easily released together, and the first and second folds are released from the outer plate. Can be. Further, if a pair of engaging projections is provided on each of the first and second folding portions, and a pair of side walls are provided on the outer plate, and an engaging recess and a push button are provided on each of them, a double-opening type is provided. And a double push type clasp structure.

According to a fifth aspect of the present invention, there is provided the clasp of the accessory according to any one of the first to fourth aspects. The first engaging projection is also used as a connecting part for rotatably connecting the other end of the middle plate and the one end of the accessory, and the second engaging projection is formed of the other middle plate. And at least one of the above, which also serves as a connecting portion for rotatably connecting the other end of the accessory.

With this configuration, not only can the same operation as in any one of the first to fourth aspects described above be achieved, but also the number of parts can be reduced because the engaging projection also serves as a connecting portion between the middle plate and the accessory. And can be easily assembled.

In order to achieve the above object, the clasp structure of the accessory according to the sixth aspect of the present invention is the clasp structure of the accessory according to any one of the first to fifth aspects. The first engagement protrusion is a pivot portion of a first spring bar rotatably connecting the other end of the middle plate and one end of the accessory, and the second engagement protrusion is At least one of a pivot portion of a second spring bar that rotatably connects the other middle plate and the other end of the accessory is provided.

With such a configuration, the pivot portion of the spring bar can be used as the engagement projection that also serves as the connection portion between the middle plate and the accessory. That is, the spring rod has elastic means (coil spring) for urging the pivot portions provided at both ends outward in the axial direction, and can be used as a connection shaft. Thus, one spring rod can also serve as the engagement protrusion, the elastic means for urging the engagement protrusion, and the connection between the middle plate and the accessory, and the number of parts can be greatly reduced. In particular, since the spring bar is provided with pivot portions at both ends thereof, it is suitable for a case where a pair of engaging projections are arranged on both edges of the folded portion along the longitudinal direction of the accessory.

According to a seventh aspect of the present invention, there is provided the clasp of the accessory according to any one of the second to sixth aspects. The portion is recessed on the inner surface thereof along the jewelry transverse direction and has a button recess having a bottom surface facing inward of the outer plate, and the outer surface to a part of the bottom surface in the jewelry transverse direction. A button hole that penetrates through the button hole, wherein the push button is inserted into the button recess and has a size that cannot pass through the button hole, and extends from the base toward the outside of the outer plate. And a pressing portion projecting outward of the side wall portion from the button hole, and an action portion extending from the base portion toward the inside of the outer plate and having a distal end portion abutting on the engaging projection portion. With the base being closer to the inside of the outer plate than the base. And a retaining member fixed to the side wall portion relative to the base portion other than the action portion, wherein the base portion extends along the jewelry transverse direction between the bottom surface and the retaining member. The push button is held on the side wall portion so that the push button can be repeatedly moved along the short direction of the accessory, and the push button is moved from the position of the action portion when the base portion is most moved from the bottom surface. The space leading to the opening of the button recess on the inner side surface was defined as the engagement recess.

With this configuration, in the clasp structure of the present invention, the push button can be held on the side wall so that it can be repeatedly moved along the short direction of the accessory. The base of the push button is inserted into the button recess of the side wall portion, and the pressing portion of the push button is projected out of the side wall portion through a button hole formed in a part of the bottom surface of the button recess. Further, the accessory can be moved toward the inside of the outer plate from the base portion, and can be repeatedly moved along the short direction of the accessory, between the base member and the retaining member.

When the push button is moved toward the bottom surface of the button recess, at the position where the base abuts on the bottom surface,
The push button stops moving. This is because the base of the push button has a size that cannot pass through the button hole.

When the push button is moved inward of the outer plate, the movement of the push button stops at the position where the base abuts on the retaining member. Therefore, the push button is held on the side wall so that the push button can be repeatedly moved along the short direction of the accessory.

With the repetitive movement of the push button along the short direction of the accessory, the action part of the push button also moves repeatedly. Since the retaining member is opposed to the base portion avoiding the acting portion, the movement of the acting portion is not hindered by the retaining member.

Further, when the base of the push button moves farthest from the bottom of the button recess, that is, from the position of the action portion of the push button when the base contacts the bottom,
The space leading to the opening on the inner side surface of the button recess forms an engaging recess. Therefore, when the pressing part of the push button is pressed with the finger from the outside, the push button moves toward the inside of the outer plate until the base thereof contacts the retaining member. Then, the action portion of the push button moves into the engagement recess.

As described above, the engagement projection inserted into the engagement recess can be reliably pressed by the action portion of the push button, and the engagement projection can be securely detached from the interior of the engagement recess. it can.

In order to achieve the above object, the clasp structure of the accessory according to the invention of claim 8 is the clasp structure of the accessory according to claim 7, wherein the retaining member is provided on the side wall portion. Inserted from an insertion hole drilled toward the button recess from the back surface, the retaining member is guided by the insertion hole, and one end of the accessory on the front side of the accessory is located inside the button recess. And fixing means for fixing the retaining member and the side wall portion so as to be positioned at a position facing the base portion other than the action portion.

With this configuration, the push button can be held on the side wall. That is, the base of the push button is inserted into the button recess of the side wall, and then the retaining member is inserted through the insertion hole, and the retaining member is fixed to the side wall by the fixing means while being positioned at a position facing the base. . Therefore, the push button can be incorporated into the side wall very easily.

Further, since the insertion hole is provided so as to open on the back surface of the side wall portion, the insertion hole is not visible when the accessory is viewed from the front side. Therefore, the appearance of the jewelry is not degraded.

According to a ninth aspect of the present invention, in order to achieve the above object, the clasp structure of the garment according to the ninth aspect of the present invention is the buckle structure of the garment according to the seventh or eighth aspect, which is shorter than the outer plate. The side wall portion is formed as a hollow body having a through hole penetrating along the longitudinal direction of the accessory by bending a protruding piece protruding along the hand direction, and a core member is inserted inside the through hole to form the button. The through holes other than the concave portion, the button hole, and the insertion hole are filled.

With this configuration, the side wall portion of the clasp structure according to the present invention can be manufactured at low cost. The side wall,
If an attempt is made to produce the material, the material cost will be high. In order to solve this, the side wall of the clasp structure according to the present invention is formed by bending a protruding piece protruding from the outer plate to form the side wall as a hollow body having a through hole, and a core member is provided inside the through hole. It is made by filling. Thereby, not only can the processing be easy, but also the side wall can be manufactured at extremely low cost.

According to a tenth aspect of the present invention, in order to achieve the above object, the clasp structure of the accessory according to any one of the seventh to ninth aspects, The part includes a through-hole penetrating over the entire length along the longitudinal direction of the accessory, a first opening communicating from the inner surface to the through-hole, and a first opening communicating from the outer surface to the through-hole. Opposing positions are provided with a second opening smaller than the first opening and a third opening communicating from the back surface of the side wall portion to the through hole, the side wall portion being inserted into the through hole and being inserted into the through hole. A core member fixed to the accessory is provided, and the core member has the same shape as the first opening and penetrates in the transverse direction of the accessory, and from the fourth opening toward the back side of the accessory. A vertical hole penetrating outwardly, and A core member is inserted, the first opening and the fourth opening are aligned to form the button recess, and the second opening forms the button hole, and the third opening and the vertical opening are formed. The insertion member is formed by aligning the hole with the insertion hole, the stopper member is inserted into the insertion hole, and the stopper member and the side wall portion are fixed by the fixing means, so that the core member can pass through the penetration member. It is fixed inside the hole.

With this configuration, when the core member is inserted and fixed in the side wall portion, a button recess, a button hole, and an insertion hole are formed in the side wall portion. Further, with such a configuration, the fixing means for fixing the retaining member and the side wall portion and the fixing means for fixing the core member and the side wall portion can be used.

That is, the core member is inserted into the side wall portion, then the stopper member is inserted into the insertion hole, and the stopper member and the side wall portion are fixed by the fixing means. The insertion hole includes a third opening formed in the back surface of the side wall and a vertical hole formed in the core member. That is, the retaining member inserted into the vertical hole of the core member is fixed to the side wall portion,
Movement of the core member along the longitudinal direction of the accessory in the through hole in the side wall portion is completely suppressed. Therefore, the core member is securely fixed inside the through hole in the side wall portion. Thus, since it is not necessary to separately provide a fixing means for fixing the core member and the side wall, the number of parts and the processing load can be greatly reduced.

In order to achieve the above object, the clasp structure of the accessory according to the eleventh aspect of the present invention is the clasp structure of the accessory according to any one of claims 8 to 10, wherein The means is formed on the retaining member and protrudes inward of the outer plate along the short direction of the accessory, and extends beyond the inner diameter of the insertion hole along the short direction of the accessory. A projection formed on the inner surface of the side wall and cut out along the insertion hole so as to pass through the insertion hole; The retaining projection is inserted into the insertion hole while the inner side surface of the side wall is elastically deformed inward of the outer plate so as to expand the notch by the retaining projection. More into the button recess Umbrella were, by engaging the said retaining projections said button recess and so as to fix the said retaining and member side wall portion.

With this configuration, the retaining member can be fixed to the side wall simply by inserting the retaining member into the insertion hole and positioning the retaining projection inside the button recess. At this time, the retaining projections pass through the insertion holes into the button recesses while elastically deforming the inner surfaces of the side walls toward the inside of the outer plate so as to expand the cutouts. Since the retaining projection located inside the button recess projects from the retaining member beyond the inner diameter of the insertion hole, the retaining member does not pass through the insertion hole again and fall out of the side wall. Therefore, the retaining projection and the button recess are securely engaged. This makes it easy and reliable with a simple structure,
The retaining member can be fixed to the side wall.

In order to achieve the above object, the clasp structure of the accessory according to the twelfth aspect of the present invention is the
Regarding the clasp structure of the accessory, the first opening, the second opening, and the third opening are perforated in a protruding piece projecting from the outer plate along the accessory short direction, and The notch is cut from the second opening to the tip of the projecting piece so that the projecting piece faces the front side of the outer panel and the tip of the projecting piece faces the front side of the outer panel. Then, a gap forming the through hole was provided inside the bent protruding piece, and the protruding piece was formed into the side wall portion by bending.

With this configuration, the side walls having the first, second, and third openings, notches, and through holes can be easily and inexpensively manufactured.

The first, second, and third openings and the notch can be easily formed in the protruding piece projecting from the outer plate by, for example, press working. When the outer shape of the outer plate having the protruding pieces is punched from the plate material by press working, the outer shape can be formed by simultaneously punching out the first, second, and third openings and the notch. Thus, the outer plate having the protruding piece in which the first, second, and third openings and the notch are formed can be easily processed. Next, when the protruding pieces are bent by press working, the side walls having the first, second, and third openings, notches, and through holes are easily completed.

Thus, the outer plate having the side wall portion according to the present invention can be manufactured from a plate material only by press working, so that the working is easy and inexpensive.

According to a thirteenth aspect of the present invention, there is provided the clasp of the accessory according to any one of the fourth to twelfth aspects. The button includes a second acting portion that forms a pair with the first acting portion when the acting portion is a first acting portion, and the button includes: A space extending from the position of the second action portion when the base portion moves closest to the bottom surface to the opening of the button recess to the inner side surface is the second engagement pair with the first engagement recess. And the first engagement protrusion is inserted into the first engagement recess and engaged, and the second engagement protrusion is inserted into the second engagement recess. And when the push button is pressed inward of the side wall portion, the first action portion is It presses the engaging protrusion, the second
Act on the second engagement projection.

With this configuration, when the clasp structure of the present invention is of the double-open type, each of the first and second engaging protrusions is separately engaged with each of the pair of first and second engaging recesses. Can be combined.

In order to achieve the above object, the clasp structure of the accessory according to the invention of claim 14 is based on claim 13.
In the clasp structure of the accessory described above, the retaining member is located between the first operating portion and the second operating portion.

With this configuration, the retaining member can be moved to the first position.
By disposing the first and second action portions between the action portions and the second action portion, the movement of the first and second action portions is not hindered by the retaining member. Further, the arrangement of the first and second action portions and the retaining members can shorten the length of the accessory in the middle clasp of the present invention along the longitudinal direction.

Further, the clasp structure of the accessory according to the invention is as follows:
As described in claim 15, a connection structure of a bending member that includes at least an outer plate and a middle plate, and connects an end of the middle plate to an end of the outer plate, wherein the end of the outer plate is provided. The connection between the part and the end of the middle plate, at the end of the outer plate, a pair of deployed portions having a closing piece of the annular connecting portion for the outer plate, with the closing piece as it is Forming a pair of outer plate side connecting annular portions by bending the pair of deployed portions, and forming a pair of outer plate side connecting annular portions at an end of the intermediate plate between the pair of outer plate side connecting annular portions. The board-side connecting annular portion is positioned and arranged in the jewelry transverse direction, and a connecting pin is inserted into the outer-plate-side connecting annular portion and the middle-plate-side connecting annular portion. The middle folding member may be connected by bending the closing piece to close the outer opening of the outer plate-side connecting annular portion.

In this configuration, when the outer plate is formed by punching out a plate material by press working, a developing portion having a closing piece of the annular portion for connecting the outer plate is provided at an end of the developing portion of the outer plate. Form a pair, with the closing piece as it is,
The pair of unfolded portions is bent to form the pair of outer plate-side connecting annular portions. Then, an intermediate plate-side connecting annular portion formed at an end of the intermediate plate is located between the pair of outer plate-side connecting annular portions and arranged in the direction of the accessory, and the outer panel-side connecting After inserting the connecting pin into the annular portion and the intermediate plate-side connecting annular portion, the closing piece is bent to cover the outer opening of the outer plate-side connecting annular portion, thereby forming the outer plate. A connection can be made between the end and the end of the middle plate.

As described above, the connection between the end of the outer plate and the end of the middle plate can be easily performed by pressing, and the closing piece is bent to form the outer plate-side connecting ring. Since the outer opening of the portion is closed, the opening for inserting the pin is not visible from the outside, and the appearance is improved.

[0072]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIGS. 1 to 38 show Embodiment 1 of a clasp structure of an accessory according to the present invention. FIG. 1 is a perspective view of a clasp structure of an accessory according to the present invention (Example 1), and FIG.
Is a perspective view of the disassembled state of the clasp structure, and FIG. 3 is a perspective view of a connecting portion between the front plate and the end of the accessory in the clasp structure.

Embodiment 1 of the clasp structure of the accessory according to the present invention is implemented as a double clasp type clasp for a wristwatch band. The clasp includes a folding member B. The middle bending member B includes an outer plate 1, one middle plate 2, the other middle plate 3,
It is roughly composed of one front plate 4 and the other front plate 5. One end of one middle plate 2 is rotatably connected to one end of the outer plate 1. One end of the other middle plate 3 is rotatably connected to the other end of the outer plate 1. Further, one front plate 4 is connected to the other end of one middle plate 2, and the other front plate 5 is connected to the other end of the other middle plate 3. One top plate 4 is connected to one end of the accessory, and the other top plate 5 is connected to the other end of the accessory. Thus, one middle plate 2 and the other middle plate 3 form a middle clasp that is opened and closed with respect to the outer plate 1 in a double door type. When the middle folding member B is folded and closed, one end and the other end of the accessory are closed. When the middle folding member B is opened and expanded, one end and the other end of the accessory are separated. Here, the term “one end” or “the other end” is considered along the accessory, that is, the longitudinal direction of the band.

The outer panel 1 has a strip-shaped outer panel body 1A. At one end of the outer plate body 1A, a pair of connecting annular portions (outer plate side connecting annular portions) 7 formed integrally with the outer plate body 1A are provided. At the other end of the accessory in the longitudinal direction, a pair of connecting annular portions (outer plate-side connecting annular portions) 8 integrally formed with the outer plate main body 1A are provided.

The outer panel body 1A has a pair of side wall portions 9. The pair of side wall portions 9 are rectangular protrusions formed at the center of the outer plate body 1 </ b> A, which is divided along the short direction, and bent at substantially right angles to the front and back surfaces of the outer plate 1. . Specifically, the side wall portion 9 is formed so as to rise from the edge portion along the longitudinal direction of the outer plate main body 1A toward the front side of the accessory. The pair of side wall portions 9 face each other in the transverse direction of the accessory. 6 to 10 show the side wall 9 in more detail. The side wall portion 9 extends from the edge of the outer plate main body 1A toward the front side, and is folded back toward the outer plate main body 1A. Specifically, the outer panel body 1A
Is bent inward and folded back. Looking at the cross-section along the transverse direction of the accessory, it can be seen that the accessory has a substantially U-shape that opens toward the back side of the accessory. Outer panel body 1
The portion extending toward the front side from the edge of A is the outer surface 13.
The portion folded back toward the outer plate main body 1A forms the inner side surface 12. Regarding the method of manufacturing the side wall portion 9,
This will be described in more detail later. In addition, the pair of side wall portions 9
It is located outward along a short direction of the accessory from a folding portion described later.

A predetermined space is provided between the inner side surface 12 and the outer side surface 13 of the pair of side wall portions 9 in the short direction of the accessory. Of these, between the outer surfaces 12 and 13, a side wall portion 9 is provided.
A core member insertion hole (through-hole) 14 is formed to extend from one end of the accessory to the other end in the longitudinal direction. A slope 9F for guiding is formed at the upper part of the inner side surface 12 of the side wall 9, that is, at the end in the front side direction. As can be understood from FIG. 6, the inclined surface 9 </ b> F is closer to the front end of the inner surface 12 than the inner surface 12.
It inclines toward the inside of the outer plate main body 1A.

Then, a first opening 15 is formed in the side wall 9 so as to extend from the inner side surface 12 to the core member insertion hole 14. Further, the outer surface 13 communicates with the core member insertion hole 14,
A button hole 19 as a second opening is formed at a position facing the first opening 15. FIG. 10 shows that the button hole 19 is smaller than the first opening 15. Specifically, the width of the button hole 19 along the longitudinal direction is smaller than the width of the button first opening 15. In addition, an insertion hole 30 is formed as a third opening from the back surface 9C of the side wall 9 to the core member insertion hole 14. Further, a notch 16 in the form of a vertical hole is formed which extends from the center of the lower edge 15 a of the first opening 15 to the lower edge 12 a of the inner wall 12. And this notch 1
A guide surface 16A is formed at the lower corner of 6. Also,
Both edges of the outer side surface 13 of the side wall portion 9 along the longitudinal direction of the button hole 19 are stopper portions for preventing a push button 21 described later from coming off. That is, the edge of one end of the button hole 19 forms the stopper 20A, and the edge of the other end forms the stopper 20B. Stopper part 20A, 2
It can be seen from FIG. 10 that OB is formed by the difference in width between the button hole 19 and the first opening 15 along the longitudinal direction.

On the other hand, as shown in FIG. 13, the push button 21 has a substantially U shape in plan view. The U-shaped curved portion is the base of the push button 21. The base is U
A base 25A and a base 26A, which are two arms extending in the lateral direction of the character and arranged in parallel, are connected in the longitudinal direction. The distal end of the base 25A that is opened in the lateral direction is the first working part 2.
5, and the open distal end of the base 26A forms the second acting portion 26. An outer end of the base of the push button 21 serves as a pressing portion 24 for acupressure with a finger.
That is, at the base of the push button 21, the first action part 25 is located at one end side along the longitudinal direction, and the second action part 26 is located at the other end side of the pressing part 24. Then, the first action section 25 moves in the longitudinal direction and
It has a stopper 25B protruding from the base 25A toward the outside of the character. Alternatively, it can be seen that a stopper 25B composed of a step is provided between the stopper 25B and the base 25A. Similarly, the second action section 26 has a stopper 26B protruding from its base 26A. It can be seen that the stopper portions 25B and 26B protrude in opposite directions along the longitudinal direction. Therefore,
The base of the push button 21 has a size that cannot pass through the button hole 19.

As shown in FIG. 12, the core member 22 has a strip-shaped core plate body 22A. This core plate body 2
2A is provided with a fourth opening 27 that penetrates the accessory in the transverse direction. The fourth opening 27 is provided in the first opening 1 of the side wall 9.
5 is penetrated with the same shape. An insertion hole 2 formed of an opening 27 and a vertical hole that passes from the center of the lower edge 27a of the fourth opening 27 to the lower edge 22a of the core plate body 22A.
8 are formed.

As shown in FIGS. 16A and 16B, the retaining member 23 is a strip-shaped member main body 23A.
Is provided. The tip of the member main body 22A is a tip facing the front side of the accessory when considering the incorporation, but both corners of the tip are cut off obliquely, and the guide slope 23B is formed.
Is formed. In addition, a retaining projection 29 that projects in a hemispherical shape is formed on the surface of the member main body 22A, on the surface facing the front side of the accessory when considering the incorporation, and facing inward of the accessory along the lateral direction of the accessory. Is done.

Now, a method of incorporating a push button into the side wall 9 will be described. First, as shown in FIG.
The core member 22 is inserted into the core member insertion hole 14 of the side wall portion 9. The core member 22 fills the inside of the hollow side wall 9 formed by bending a plate material, and gives strength to the side wall 9.
Then, the fourth opening 27 of the core member 22 is aligned with the first opening 15 of the inner wall 12. As shown in FIG. 11 or 15, a button recess 31 is formed in the side wall 9 by the first opening 15 and the fourth opening 27. The button recess 31 is a recess formed in the side wall 9 along the lateral direction, and is opened inside the outer plate body 1A. The insertion hole 28 of the core member 22 is inserted into the insertion hole 30 of the side wall 9.
To match. Therefore, the insertion hole 28 and the insertion hole 30
An insertion hole for a retaining member that penetrates the button recess 31 from the back surface of the side wall portion 9 is formed.

Next, as shown in FIG. 13 or 15, the push button 21 is inserted from the button recess 31. The pressing portion 24 of the push button 21 projects outward from the button hole 19. The stopper portion 25B of the first action portion 25 of the push button 21 abuts against the stopper portion 20A of the button hole 19, and the second action portion 26
The stopper 26B of the button hole 19 abuts against the stopper 20B of the button hole 19. The insertion hole for the retaining member formed by the insertion hole 28 and the insertion hole 30 is provided between the forked arms of the U-shaped push button 21, that is,
It is located between the first action section 25 and the second action section 26. 15, it can be seen that the first action section 25, the second action section 26, and the insertion hole for the retaining member are arranged in series along the lateral direction. Further, it can be seen that the first action portion 25 and the second action portion 26 of the push button 21 are located in the button recess 31.

As shown in FIG. 17, the core member insertion hole 14 is inserted through the insertion hole 30 formed in the back surface 9C of the side wall 9.
And the retaining member 23 is inserted. That is,
The retaining member 23 is inserted into the retaining member insertion hole, and the hemispherical retaining projection 29 of the retaining member 23 is inserted.
Engages with the button recess 31 of the side wall 9. Therefore, the retaining member 23 is fixed to the side wall 9.

The fixing means can be specifically understood from FIGS. 18 (1) to 18 (3). First, as shown in (1), when the retaining member 23 is inserted into the core member inserting hole 14 from the insertion hole 30, the retaining protrusion 29 is provided in the notch 16 of the inner surface 12 in the side wall 9. It hits the guide surface 16A from behind. Further, the retaining member 23 is pushed into the front side. Then, as seen in (2), the retaining projection 2
9 resiliently pushes the notch 16 right and left. Then, the retaining projection 29 passes through the notch 16 and reaches the first opening 15, that is, the inside of the button recess 31. Then, as seen in (3), the retaining protrusion 29
Is in contact with the inner surface 31a of the button recess 31, that is, the front wall surface (ceiling surface) inside the button recess 31, and the notch 16 returns to its original position and closes. At this time,
The other end near the back side of the retaining member 23 is located so as to close the insertion hole 30 of the side wall 9. Thereby, the aesthetic appearance of the accessory is maintained. Since the retaining member 23 is in contact with the inner surface 31a of the button concave portion 31, it does not move any more to the front side. Further, the retaining member 23 cannot move over the notch 16 in which the projection 29 is closed, so that it does not move further to the rear side. Furthermore, since the vicinity of the other end near the back side of the retaining member 23 is inserted into the retaining member insertion hole, there is no backlash in the lateral direction or the plane direction along the longitudinal direction. Thus, the retaining projection 29
Is securely engaged and fixed to the button recess 31.

When the retaining member 23 is fixed to the side wall 9, the core member 22 and the push button 21 are prevented from coming off from the side wall 9. As described above, the vicinity of the other end on the back side of the retaining member 23 is close to the retaining member insertion hole, that is, the insertion hole 28 of the core member 22.
Has been inserted. Therefore, the core member 22 is prevented from being pulled out from the core member insertion hole 14 of the side wall portion 9 through the fixing between the stopper member 23 and the side wall portion 9.

As shown in FIG. 18 (3), the retaining member 23 reaches the inside of the button recess 31, and the first operating portion 25 and the second operating portion 2 of the push button 21.
6 and between. Therefore, even if the push button 21 moves to the inside of the outer plate main body 1A, the first action portion 25
Since the base of the push button 21 that connects the and the second action portion 26 contacts the retaining member 23, the push button 21 does not come out inward. Further, even if the push button 21 moves to the outside of the outer plate body 1A, the push button 21 does not come out outward because the button 21 is in contact with the bottom surface of the button recess 19 where the button hole 19 is formed. Specifically, the stopper 25B abuts against the stopper 20A of the button hole 19, and the stopper 26
Since B is in contact with the stopper portion 20B of the button hole 19, the push button 21 is not pulled out outward. A predetermined distance is provided between the bottom surface of the button recess 31 where the button hole 19 is formed and the retaining member 23 along the lateral direction. This distance is the stroke amount of the push button 21. As shown in FIGS. 20 and 21, the push button 21 can repeatedly move along the lateral direction between the bottom surface of the button recess 31 where the button hole 19 is formed and the retaining member 23. Along the longitudinal direction, it is preferable to reduce the gap between the push button 21 and the button recess 31 as long as the push button 21 does not interfere with the repeated movement. This is for suppressing the backlash of the push button 21 along the longitudinal direction.

As described above, the retaining member 23 reaches the inside of the button recess 31 and is located between the first operating portion 25 and the second operating portion 26 of the push button 21. As a result, the button recess 31 is divided into two recesses from the viewpoint of operation. That is, the location where the first action portion 25 is located forms the first engagement recess 17, and the location where the second action portion 26 is located constitutes the second engagement recess 18.
The first engaging recess 17 is located near a first folding portion described later, and the second engaging recess 18 is located near a second folding portion described later.
It will be seen later that it is located closer to the fold. Thus, the push button 21 is located outside the first and second engagement recesses 17 and 18 and is adjacent to the first and second engagement recesses 17 and 18 along the width direction of the accessory. I do. Due to the repetitive movement of the push button 21, the first action portion 25 moves in and out of the first engagement recess 17. Similarly, the second action section 26 protrudes and retracts in the second engagement recess 18.

Also, as shown in FIG.
Has a strip-shaped middle plate main body 2A. This middle plate body 2A
A connecting annular portion (middle plate-side connecting annular portion) 33 is formed at one end of the accessory in the longitudinal direction. The other end of the middle plate body 2A in the accessory longitudinal direction is bent to the front side, that is, the side opposite to the outer plate 1 side, with respect to the front and back surfaces of the middle plate body 2A.
On both sides of this bent portion in the short direction, pin mounting portions 34 protruding toward the outer plate 1 are formed. These pin mounting portions 34 are provided with pin holes 35, respectively. And
On the rear surface of the middle plate main body 2A, a spring piece 36A for raising up to the outer plate 1 side is provided.

Also, as shown in FIG.
Has a strip-shaped middle plate main body 3A. This middle plate body 3A
A connecting annular portion (middle plate-side connecting annular portion) 37 is formed at one end of the accessory in the longitudinal direction. Also, the middle plate body 32A
The other end of the accessory in the longitudinal direction is bent to the side opposite to the outer plate 1 side with respect to the surface of the intermediate plate main body 2A, and pin mounting portions projecting toward the outer plate 1 on both sides of the bent portion. 38 are formed. Pin holes (not shown) are provided in these pin mounting portions 38.
Is provided. The outer plate 1 is provided on the surface of the middle plate body 3A.
A spring leaf 36B is provided on the side for lifting.

Further, as shown in FIG.
Is formed by bending a plate material into a flat box shape.
One of the front plates 4 is a box penetrating in the lateral direction. A connection hole 41 is provided at one end in the longitudinal direction of both side walls 40 of the front plate 4 along the longitudinal direction. Also, as shown in FIG.
A, a mounting hole 39B is provided in the back surface portion 4B. Also,
As shown in FIG. 1, the other front plate 5 is similarly formed by bending a plate material into a flat box shape.
The connecting holes 4 are formed at one end of the side wall portions 42 in the longitudinal direction of the accessory.
3 are provided. Also, the front and back portions 5A, 5B of the front plate 5
Has a mounting hole similar to one of the front plates 4.

Then, at one end of the outer plate 1, the connecting ring 33 is connected to the pair of connecting rings 7 by connecting pins 43.
And one end of one middle plate 2 is foldably connected. Also, the other end of the outer plate 1 is connected to the pair of connecting annular portions 8 by connecting the connecting annular portion 37 with the connecting pins 44 so that one end of the other middle plate 3 can be folded. Be linked. The connection means will be described later in detail.

As shown in FIGS. 26 and 27, the other end of one middle plate 2 is inserted between both side walls 40 of one front plate 4. And, the pin mounting portion 34 of the one middle plate 4,
The pivot portions 45 </ b> A of the first spring rods 45 are inserted into the connection holes 41 of the side walls 40 of the front plate 4. At this time, the first
The pivot portion 45A of the spring bar 45 protrudes outward along the lateral direction from the connection hole 42 of the side wall portion 40 of one of the front plates 4. Therefore, the other end of one middle plate 2 is foldably connected to one front plate 4. As shown in FIG. 3, a hole Q1 is provided at one end of the accessory Q.
A nut member 90 is inserted into 1. One end of the accessory Q is inserted into one of the front plates 4, and the back surface 4B of the front plate 4 is inserted.
The screw member 91 is inserted from the hole 39 </ b> B provided in the above and screwed into the nut member 90. Then, one end on the front side of the screw member 91 is inserted into a hole 39A provided on the surface 4A of the front plate 4. Therefore, one end of the accessory Q is connected to one of the front plates 4. One front plate 4 constitutes one end of the accessory Q. One of the front plates 4 and one of the middle plates 2 constitute a first folded portion 2X-1.

Further, a pivot portion 45A projecting outward through the connecting hole 41 of the side wall portion 40 of one of the front plates 4 is provided.
The first engagement protrusion 46 is formed. The first engaging projection 46 and the first engaging recess 17 of the side wall 9 constitute a first engaging means 2Y-1.

Similarly, the other end of the other middle plate 3 is
The second spring bar 47 is pivotally inserted into the pin mounting portion 38 of the other middle plate 3 and the connection hole 43 of the both side walls 42 of the other middle plate 3. The part 47A is inserted. Therefore, the other end of the other middle plate 3 is connected to the one front plate 4 so as to be foldable. Further, the other end of the accessory Q is connected to the other front plate 5 by the same connection means as the one end of the accessory Q is connected to the one front plate 4. The other front plate 5 constitutes the other end of the accessory Q. The other front plate 5 and the other middle plate 3 constitute a second folded portion 2X-2.

The pivot portion 47 of the second spring bar 47
A penetrates through the connection holes 43 of both side walls 42 of the other front plate 5 and protrudes outward along the lateral direction. The pivot portion 47A is the second engagement protrusion 48. The second engaging projection 48 and the second engaging recess 18 of the side wall 9 constitute second engaging means 2Y-2.

Next, a description will be given of an operation of attaching the accessory Q having the clasp structure configured as described above to, for example, a wrist, releasing the attachment, and removing the accessory from the wrist.

The accessory Q having the clasp structure always forms a loop. The first and second folded portions 2X-1 and 2X-2 are folded toward the front side of the outer plate 1 as shown in FIG. Then, the first and second middle plates 2 and 3 are folded and overlapped on the front side of the outer plate 1.
The pair of side wall portions 9 of the outer plate 1 are located outward in the lateral direction from the first and second folded portions 2X-1 and 2X-2. Therefore, the first and second folded portions 2X-1 and 2X-2 are accommodated between the pair of side wall portions 9. However, the distance between the pair of side wall portions 9 is such that the first engagement projection 46 and the second engagement projection 48 projecting from the first and second folded portions 2X-1 and 2X-2 pass. The dimensions are not set.

As shown in (1) and (2) of FIG. 29 or (1) and (2) of FIG. 30, the first engaging projection 46 which is the pivot portion 45A of the first spring rod 45 is provided. , Is pressed along the lateral direction by the side wall portion 9 erected from the outer plate 1 toward the front side. At this time, the guide slope 9F of the side wall portion 9
Is used. Therefore, the first engagement protrusion 46 is formed by the coil spring 4 which is an elastic means built in the first spring rod 45.
The inward direction of the jewelry is retracted inward against the biasing force of 5B. Further, the first folded portion 2X-1 is connected to the outer plate 1
To the first fold 2X-1 and the outer plate 1.
When the first and second engaging projections 46 overlap and close in the front and back directions of the accessory A against the flip-up spring 36A, the first
And the first engaging recess 17. That is, the first engagement protrusion 46, the first engagement recess 17, and the push button 2
1 are arranged in the same plane along the short direction of the accessory. As shown in (2) of FIG. 29, (2) of FIG. 30, and FIG. 31, the first engagement protrusion 46 is formed by the coil spring 45B.
Move outward along the short direction by the urging force of
Is inserted into the engaging concave portion 17 of the second member. Therefore, the first engagement protrusion 46 engages with the first engagement recess 17, and the first folded portion 2 </ b> X- 1 is locked to the outer plate 1. First engagement projection 4
6, the push button 21 is pushed outward by the first action portion 25 in the short direction of the accessory and moves, and the pressing portion 24 of the push button 21 projects outward from the button hole 19. The flip-up spring 36A is provided between the first folded portion 2X-1 and the outer plate 1 so that the first folded portion 2X
-1.

The second folding section 2X-2 is operated in the same manner. The second engaging projection 47 is pressed by the side wall 9 of the outer panel 1 along the lateral direction. Second engagement projection 48
Is retracted inward along the short direction of the accessory against the urging force of the coil spring 45B, which is an elastic means incorporated in the second spring bar 47. Further, the second folding unit 2X
-2 is moved toward the outer plate 1 and overlapped on the front and back.
The second engagement protrusion 47 is provided in the second engagement recess 18 of the side wall 9.
And relative. The second engagement protrusion 47 moves outward by the urging force of the coil spring 45B and is inserted into the second engagement recess 18. Therefore, the second engagement projection 47 engages with the first engagement recess 18 and the second folding part 2X-2
Are locked to the outer plate 1. The push button 21 is pushed outward by the second engaging portion 47 in the short direction of the accessory by the second action portion 26. The spring 36 </ b> B is bent between the second folded portion 2 </ b> X- 2 and the outer plate 1.
Thus, one end and the other end of the accessory Q are closed, and the accessory Q is mounted on the wrist. Either the first folded portion 2X-1 or the second folded portion 2X-2 may be closed first.

When both the pressing portions 24 of the push button 21 are pressed with a finger and pressed inward along the short direction, the first folding portion 2X-1 and the second folding portion 2 The part expands at the same time. See FIG. 33 (1) (2). When the user presses the push button 21, the first action portion 25 of the push button 21 is moved to the first engagement protrusion 46.
Against the coil spring 45B in the short direction. The first engagement protrusion 46 is retracted inward along the short direction, and comes out of the first engagement recess 17. On the other hand, the resilient force of the spring 36 </ b> A causes the middle plate 2 to jump up in a direction away from the outer plate 1. As a result, the first folded portion 2
X-1 expands from the outer plate 1 toward the front side of the accessory Q. At the same time, when the push button 21 is pressed with a finger, the second action portion 26 pushes the second engagement protrusion 48 inward against the coil spring 45B. Therefore, the second engagement projection 48 is pulled out of the second engagement recess 18. The resilient force of the spring 36B opens the other middle plate 3, and the second folded portion 2X-2 expands from the outer plate 1 toward the front side of the accessory Q. Thus, the one end and the other end of the accessory Q are opened by the finger pressure of the push button 21. Then
The wheel formed by the accessory Q and the clasp structure is opened, and the accessory Q may be removed from the wrist. The first of the push buttons 21,
The second action portions 25 and 26 are provided with the first and second engagement recesses 1.
The first and second openings 7 and 18 may be moved to the opening (first opening 15) opened on the inner surface 12 of the side wall 9, or may be protruded from the inner surface 12 beyond this opening. As is clear from the above, the first spring bar 45 and the second spring bar 47 are not only a connecting means for the middle plate and the outer plate, but also a means for engaging the outer plate with the front plate.

The first spring rod 45 and the second spring rod 4
A configuration without using 7 is also possible. As shown in (1) of FIG. 34, the other end of one of the middle plates 2 is cut out in a U-shape toward one end, and two cantilevered arms parallel to each other in the lateral direction. Form 50. At the open end of the arm 50,
The pin-shaped protrusion 51 is integrally formed so as to protrude outward along the short direction. The two arm portions 50 are elastically bent inward along the short direction, and the pin-shaped protrusion 51 is
Is inserted between the side walls 40. Then, the bending of the two arm portions 50 is released, and the pin-shaped protrusion 51 is moved to the first front plate 4.
Is inserted into the connection holes 41 provided in the side wall portions 40. The pin-shaped projections 51 protruding outward from the side walls 40 in the lateral direction are referred to as first engagement projections 46. 2
The arm 50 of the book forms an elastic means for urging the first engaging projection 46 in the short direction since it is elastically bent in the short direction. Also, the other middle plate 3 is formed in the same manner as the one middle plate 2, and the pin-shaped projections of the other middle plate 3 are inserted into the connection holes 43 provided on both side walls 42 of the other front plate 5. , And project outward from both side wall portions 42. Then, the pin-shaped protrusion 51 may be formed on the second engagement protrusion 48. Since such a configuration does not use a spring bar, the number of parts is small, and thus it can be manufactured at low cost.

The first and second engaging projections 46, 48
May be provided on one and the other middle plates 2, 3. FIG.
As shown in FIG. 36, a projecting piece 56 is provided on the other end of one of the middle plates 2 between a pair of connecting annular portions 55 arranged in the short direction and protruding toward the front side along the longitudinal direction. To form An annular holding portion 57 is formed at the tip of the open end of the projecting piece 56. The holding annular portion 57 projects beyond the pair of connecting annular portions 55 along the longitudinal direction, toward the inside of the outer plate 1 and toward the side wall portion 9. The spring bar 58 is inserted into the holding ring portion 57, and the spring bar 58 is held in the holding ring portion 57 by a conventional method. For example, the holding ring 5
7 may be fixed by caulking in the radial direction, or an insertion holding means such as brazing or bonding may be employed. At this time, the pivot portions 58A at both ends of the spring bar 58 are made to protrude from the holding annular portion 57.

Then, as shown in FIG. 36, a pair of connecting annular portions 55 are inserted between both side wall portions 40 of one of the front plates 4, and the connecting holes 42 of the both side wall portions 40 of the front plate 4 are formed. The spring bar 59 is inserted into the connecting annular portion 55. Then, the other end of one middle plate 2 and one front plate 4 are foldably connected.
As shown in FIG. 37, when viewed from the side, the spring bar 58 is located outside the side walls 40 and close to the side wall 9 of the outer plate 1. The pivot portions 58A at both ends of the spring bar 58 are referred to as first engagement protrusions 46. Surface portion 4A of one front plate 4
It is preferable to form an eave portion 60 which is a roof extending toward the spring bar 59 along the longitudinal direction. This is because the exposed spring bar 58 is hidden by the eaves portion 60 so as not to be seen from the front side of the accessory, and thus, the appearance of the accessory is maintained. Also, the other end of the other middle plate 3 holds a spring rod similarly to the one middle plate 2, and its pivot portion is moved to the second position.
May be used as the engagement projection 48.

Then, as shown in FIG. 37, the pivot portion 58A of the spring bar 58 as the first engagement projection 46 is engaged with the side wall 9 in the same manner as the above-mentioned folding operation. The second engaging projection 48 is similarly engaged with the side wall 9. As described above, the engagement protrusion may be provided at any position of the folded portion.

FIGS. 38 and 39 show a modification of the push button 21 described above. One action part 61 is formed by connecting the first action part 25 and the second action part 26 along the lateral direction. More specifically, the push button 21 is a flat plate having a semi-cylindrical shape in a plan view, and has a retaining hole penetrating from the front to the back at the center thereof. The curved portion of the kamaboko forms the pressing portion 24, and the pressing portion 24
And a straight line portion opposing to the action portion 61. The push button 21 is inserted into the button recess 31 and causes the pressing portion 24 to protrude outward from the button hole 19. Back surface 9 of side wall 9
The retaining member 23 is inserted from the insertion hole 30 provided in C into the retaining member insertion hole that passes through the core member insertion hole 14. The hemispherical retaining projection 29 of the retaining member 23 is engaged with the button recess 31. At this time, the front end of the retaining member 23 is inserted into the retaining hole of the push button 21 to prevent the push button 21 from being removed. Along the lateral direction, the inner diameter of the retaining hole of the push button 21 is set to be larger than the outer diameter of the retaining member 23, and the difference in the diameter is the stroke of the push button 21. Thus, the push button 21 can move repeatedly along the short direction. The action portion 61 repeatedly moves so as to be able to protrude and retract into the first engagement recess 17 and the second engagement recess 18. The push button 21 has a simpler structure and can be manufactured at low cost.

Next, a method of forming the side wall portion 9 and the outer plate 1
Will be described. As shown in FIGS. 4 and 5,
The side wall portion 9 is formed by punching and folding a single plate material together with the outer plate 1 by a press. That is, a single plate material is punched to form the outer plate main body 1A in a developed state. At the center of both sides along the longitudinal direction of the outer plate main body 1A, a protruding piece 9A protruding in the lateral direction is formed. Further, at both ends along the lateral direction of the outer plate main body 1A, the developed portions 7-1, 8-1 of the connecting annular portions 7, 8 are provided.
Is formed. The deployed portions 7-1 and 8-1 are closing pieces 7A and 8 that close the outer side of the connecting annular portions 7 and 8 in the jewelry direction.
A is provided. In addition, on the edges on both sides of the outer panel body 1A, the expanded portions 9D-1, 9E- of the reinforcing ribs 9D, 9E are provided.
1 are formed respectively. On the protruding piece 9A, a first opening 15, a notch 16, a button hole 19 as a second opening, and an insertion hole 30 as a third opening are formed.

Then, the expanded portions 7-1 and 8-1 are bent by a press to form the connecting annular portions 7 and 8. The reinforcing ribs 9 are formed by bending the deployed portions 9D-1 and 9E-1.
D, 9E are formed. Further, the protruding piece 9A is bent at the first fold A and the second fold B to form the back surface 9C and the outer surface 13 as shown by the solid line in FIG. Further, it is bent at the third fold c to form the inner side surface 12 as shown by a dotted line in FIG.

As described above, the outer plate 1 according to the present invention is easily and inexpensively manufactured from a plate material only by punching and bending by a press. Further, it can be understood from the description and drawings that the other members constituting the present invention, that is, the middle plate, the push button, and the front plate are also easily and inexpensively manufactured from the plate material by pressing. Would.

Next, the means for connecting the outer plate and the middle plate will be described. As shown in (1), (2), and (3) of FIG. 25, the connecting annular portion 33 of one middle plate 2 is inserted between the pair of connecting annular portions 7, and the one connecting annular portion 33 is provided. Connection pin 4 from ring part 7
3 is inserted into the connecting annular portions 7, 33, 7. Then
The closing piece 7A is bent by, for example, a press to close the outer opening of the connecting annular portion 7. Accordingly, one end of one middle plate 2 is foldably connected to one end of the outer plate 1. Also, the connection between the other end of the outer plate 1 and one end of the other middle plate 3 is made by connecting the connecting pin similarly to the connection between one end of the outer plate 1 and one end of the one middle plate 2. It is only necessary to insert and bend the closing piece 8A to close the outer opening of the connecting annular portion 8. From the above description, it can be seen that the clasp of the present invention is easily manufactured from a plate material only by pressing and is easy to assemble. As described above, the push button is easily incorporated simply by pushing the retaining member 23 into the side wall portion 9. All steps to obtain a completed clasp are easy and inexpensive. For example, the clasp of the present invention can be manufactured and assembled from a plate material by an automatic machine, and thus can be completed.

According to the first embodiment, it is not necessary to provide the push button 21 with the hook portion that engages with the descending folding portion as in the related art. Therefore, the push button 21 can be formed in a simple shape, and the push button 21 can be easily and inexpensively manufactured. In addition, there is no need to provide an elastic means for urging the push button 21 outward in parallel with the push button 21 along the short direction of the accessory.
Therefore, the clasp structure of the present invention can reduce the width along the width direction of the accessory.

Further, in the clasp structure of the present invention, the first and second engaging projections 46 and 48 of the first and second folded portions 2X-1 and 2X-2 are formed by the first and second engaging projections 46 and 48 of the outer plate 1. , The second engagement recess 17,
18 and engage in parallel along the short direction of the accessory. Therefore, the push button 21 and the first and second folding units 2
Compared with the conventional clasp structure in which X-1 and 2X-2 are vertically overlapped and engaged along the front and back directions of the accessory Q, the clasp structure of the present invention reduces the thickness of the accessory Q in the front and back directions. Can be. Therefore, the width along the width direction of jewelry is narrow,
In addition, a clasp structure in which the thickness of the accessory Q in the front and back directions is small can be manufactured at low cost. For example, it is possible to provide a small-sized clasp structure that is compatible with slender accessories such as women's bracelets at low cost.

Further, since the clasp structure is a double push type having two push buttons 21, to open the first and second folded portions 2X-1 and 2X-2 from the outer plate 1, It is necessary to press both push buttons 21 of the pair of side walls 9 on both sides of the outer panel 1 in the jewelry direction in the short direction. Even if one of the push buttons 21 is pressed to remove the first engagement projection 46 and the first engagement recess 17, the second engagement projection 48 and the second engagement The engagement with the engagement recess 18 is maintained. Therefore, the first and second push buttons 21 are only pressed, so that the first and second push buttons 21 are pressed.
Cannot be opened from the outer plate 1 of the folded portions 2X-1 and 2X-2. This is due to careless external load.
Even if either one of the push buttons 21 is pressed, the accessory Q does not fall off. That is, it is possible to prevent the accessory Q from falling off unintentionally.

Further, of the two push buttons 21 provided on the pair of side wall portions 9 on both sides of the outer panel 1 in the short direction of the accessory, the first and second push buttons 21 are pressed only by pressing one of the push buttons 21 on both sides. Can be disengaged from the first and second engaging recesses 17 and 18 together. That is, only by pressing the push buttons 21 on one side, the first and second folding parts 2X-1, 2
2X-2 and the outer plate 1 are both disengaged, and the first and second
The folded portions 2X-1 and 2X-2 can be opened from the outer plate 1.

The first engaging projection 46 is provided between the other end of the middle plate 2 and one of the front plates 4 as one end of the accessory Q.
And also serves as a connecting portion for rotatably connecting. The second engaging projection 48 also serves as a connecting portion that rotatably connects the other end of the other middle plate 3 and the other front plate 5 as the other end of the accessory Q. As a result, the number of parts can be reduced and assembly can be easily performed.

A first engaging projection 46 rotatably connects the other end of one of the middle plates 2 to one of the front plates 4 as one end of the accessory Q. 45 is a pivot portion 45A. A second spring rod 47 rotatably connects the other end of the other middle plate 3 to the other end of the other front plate 5 as the other end of the accessory Q.
Is the pivot part. Thereby, the engaging projections, the elastic means for urging the engaging projections, the middle plates 2, 3 and the accessory Q
Can be combined with one spring bar, and the number of parts can be greatly reduced. In particular, the spring rods 45, 4
7 has pivot portions 45A at both ends thereof, so that a pair of engaging projections 4 are provided on both sides of the first and second folded portions 2X-1 and 2X-2 along the longitudinal direction of the accessory.
This is suitable for arranging 6, 48.

Further, the base 25A of the push button 21,
26A is inserted into the inside of the button recess 31 of the side wall portion 9, then the retaining member 23 is inserted through the insertion hole 30, and the base portion 25 is inserted.
The retaining member 23 is fixed to the side wall 9 by fixing means while being positioned at a position opposite to A and 26A. Therefore, the push button 21 can be very easily incorporated into the side wall 9. Further, since the insertion hole 30 is provided so as to open on the back surface of the side wall portion 9, the insertion hole 30 is not visible as long as the accessory Q is viewed from the front side. Therefore, the beauty of the accessory Q is not degraded.

Further, the side wall 9 is formed as a hollow body having a through hole 14 penetrating along the longitudinal direction of the accessory by bending a protruding piece 9A projecting from the outer plate 1 along the shorter direction of the accessory. When the core member 22 is inserted into the through hole portion 14 and the through hole 14 other than the button recess 31, the button hole 19 and the insertion hole 30 is filled, the side wall portion 9 of the clasp structure is formed. It can be manufactured at low cost. If the side wall 9 is made of a rubber material, the material cost becomes high. Such a configuration solves the manufacturing cost.

In the case of the first embodiment, one middle plate 2 is connected to one end of the accessory Q via one front plate 4 and the other middle plate 2 is connected via the other front plate 5. In the present invention, the middle plate 3 is connected to the other end of the accessory Q, but in the present invention, the one and the other front plates 4, 5 are eliminated, and the one middle plate 2 is connected to one end of the accessory Q, Further, the other middle plate 3 may be connected to the other end of the accessory Q.

(Embodiment 2) FIG. 40 shows Embodiment 2 of the clasp structure of an accessory according to the present invention. FIG. 40 shows the second embodiment.
It is a perspective view of.

Embodiment 2 has a single push type middle clasp structure. In the clasp structure of the accessory of the first embodiment described above,
The side wall portions 9 are formed as a pair on both edges along the longitudinal direction of the outer plate 1 so as to face each other in the lateral direction. In the second embodiment, the side wall 9 is formed only on one side of the edge of the outer plate 1 along the longitudinal direction. First and second engagement projections 46, 48
Are the first and second engagement recesses 17 and 18 of the side wall 9 on one side.
Is formed only on one side.
More specifically, the pivot portions of the spring rods protrude from the front plates 4 and 5 only in the direction along which the side wall portions 9 are located along the lateral direction. However, as in the first embodiment, even if the pivot portion of the spring bar is projected to both sides along the short direction,
There is no hindrance to the folding operation itself. And
The other configuration is the same as that of the clasp structure of the accessory of the first embodiment described above, and thus the same reference numerals are given and the description is omitted.

The first and second folded portions 2X-1 and 2X-2 are folded toward the outer plate 1 by passing the wrist through the loop formed by the accessory Q having the clasp structure. That is, when the first and second middle plates 2 and 3 are folded so as to overlap the front side of the outer plate 1, the pivot portions 45A and 47 of the first and second spring rods 45 and 47 are formed.
The first and second engagement projections 46 and 48 on only one side, which are constituted by A, are pressed by the side wall 9 erected from the outer plate 1 toward the front side.

Therefore, the first and second engaging projections 46, 4
Reference numeral 8 retreats inward along the short direction of the accessory against the urging force of a coil spring 45B, which is an elastic means incorporated in the first and second spring bars 45 and 47. Further, the first folded portion 2X-1 is moved toward the outer plate 1, and the first folded portion 2X-1 and the outer plate 1 are moved up by the spring 36.
When the accessory Q is overlapped and closed in the front and back direction against the accessory 36B, the first engagement protrusion 46 faces the first engagement recess 17 of the side wall 9. Then, the first engagement protrusion 46 moves outward by the urging force of the coil spring 45B,
It is inserted into the first engagement recess 17. Therefore, the first engagement protrusion 46 engages with the first engagement recess 17, and the first folded portion 2 </ b> X- 1 is locked to the outer plate 1. By the engagement of the first engagement projection 46 with the first engagement recess 17, the push button 21 is moved by the first engagement projection 46 by the first action portion 25 in the short direction of the accessory. Of the push button 21 and the pressing portion 24 of the push button 21
It protrudes outward from 9.

Further, the second folded portion 2X-2 is connected to the outer plate 1
To the second folded portion 2X-2 and the outer plate 1
When they overlap with each other in the front and back direction of the accessory Q, the second engagement projection 48 faces the second engagement recess 18 of the side wall 9. Then, the second engagement protrusion 48 moves outward by the urging force of the coil spring 45B, and is inserted into the second engagement recess 18. In this case, the second engagement projection 48 pushes the second action section 26 of the push button 21. Therefore, the second engagement projection 48 is engaged with the second engagement recess 18, and the second folded portion 2 </ b> X- 2 is locked to the outer plate 1. Accordingly, one end and the other end of the accessory Q are closed, and the accessory Q is mounted on the wrist.

By pressing the pressing portion 24 of the push button 21 inward with a finger, the push button 21 is pressed.
The first and second action portions 25, 26 push the first and second engagement protrusions 46, 48 against the coil spring 45B, and the first and second engagement protrusions 46, 48 are pressed. The first and second
By pulling out the intermediate plates 2 and 3 from the engaging recesses 17 and 18, the first and second folding portions 2 and 3 are flipped up by the resilient force of the springs 36A and 36B.
If X-1, 2X-2 is expanded from the outer plate 1 toward the front side of the accessory Q, that is, if the first and second middle plates 2, 3 are expanded from the outer plate 1, the accessories Q One end and the other end can be opened. In this way, the wheel formed by the accessory Q and the clasp structure is opened, and the accessory Q is removed from the wrist.

(Embodiment 3) FIG. 41 shows Embodiment 3 of the clasp structure of an accessory according to the present invention. FIG. 41 shows the third embodiment.
It is a perspective view of.

The third embodiment has a three-fold type clasp structure. The clasp has a folded member C having a three-fold configuration. The center bending member C includes an outer plate 71, a middle plate 72,
It is roughly composed of a front plate 73.

The outer plate 71 has a strip-shaped outer plate main body 71A. One end of the outer plate main body 71A in the longitudinal direction is provided with a connecting annular portion 74 integrally formed with the outer plate main body 71A.
Are provided as a pair. Also, at the other end of the outer plate body 71A,
Connecting annular portion 7 formed integrally with outer plate body 71A
5 are provided as a pair.

Further, a pair of side wall portions 76 are formed at the edges along the longitudinal direction of the outer plate main body 71A so as to face in the short direction and approach the other end side. The side wall portion 76
It is formed by being bent at a right angle to the surface of the outer plate 71 and stands up to the front side of the outer plate 71.

[0130] One end of the middle plate 72 is foldably connected to one end of the outer plate 71. More specifically, a pair of connecting annular portions 74 of the outer plate 71 and a connecting annular portion 80 of the middle plate 72.
Are connected by connecting pins 81 as in the first embodiment. The other end of the middle plate 72 is inserted between both side wall portions 82 of the front plate 73, and both are foldably connected by a spring bar 84. That is, similarly to the first embodiment, the pivot portions 84 of the spring rods 84 are provided in the pin holes (not shown) of the pin mounting portions 74 of the intermediate plate 72 and the connection holes 83 of the side walls 82 of the front plate 74.
A is inserted and connected. Also, the accessory Q
Are connected at one end. The front plate 74 constitutes one end of the accessory Q. Thus, the first folding part 2X-1
Is configured.

Further, a pair of connecting annular portions 75 of the outer plate 71 are provided.
The connecting portion 85 of the accessory Q is connected by a connecting pin 86. Therefore, the other end of the accessory Q is foldably connected to the other end of the outer plate 71.

The pivot portion 84A of the spring bar 84 penetrates through the connection holes 83 of both side walls 82 of one of the front plates 74, and protrudes outward in the lateral direction. The pivot portion 84A is the engagement protrusion 77. The engaging projection 77 and the engaging recess 79 of the side wall 76 constitute the engaging means 2Y-1.

The side wall 76 has substantially the same configuration as the side wall 9 of the first embodiment. However, since there is only one fold 2X-1 and only a pair of engagement protrusions 77 provided in the fold 2X-1 is engaged, the engagement recess 79 of the side wall 76 is It is not necessary to form the first and second engagement recesses 17 and 18 as in the case of the first embodiment. It is sufficient that there is one engagement recess 79 having a size corresponding to the first engagement recess 17. Therefore, the length L of the side wall portion 76 in the accessory longitudinal direction is smaller than the length of the side wall portion 9 of the first embodiment.

Next, an operation of attaching the accessory Q having the clasp structure configured as described above to, for example, a wrist, releasing the attachment, and removing the accessory from the wrist will be described.

The fold 2X-1 is folded toward the outer plate 71 by passing the wrist through the loop formed by the accessory Q having the clasp structure. That is, when the middle plate 72 is folded so as to overlap the front side of the outer plate 71, the engagement projection 77, which is the pivot portion 84 </ b> A of the spring bar 84, is formed by the side wall 76 erected from the outer plate 71 toward the front side. Pressed. Therefore, the engagement protrusion 7
Numeral 7 retracts inward along the short direction of the accessory, against the urging force of a coil spring (not shown), which is an elastic means incorporated in the spring rod 84. Furthermore, the folding part 2X-1
Is moved toward the outer plate 71, and the folded portion 2X-1 and the outer plate 71 are overlapped in the front and back directions of the accessory Q against the flip-up spring 87 and closed.
Is opposed to the engagement recess 79. Then, the engagement protrusion 77 moves outward by the urging force of the coil spring and is inserted into the engagement recess 79. Therefore, the engaging projection 77 is engaged with the engaging recess 79, and the folded portion 2 </ b> X- 1 is locked on the outer plate 71. By the engagement of the engagement protrusion 77 with the engagement recess 79, the push button 21 is moved by the engagement protrusion 77.
Is pushed outward in the short direction of the accessory, and moves, and the pressing portion 24 of the push button 21 projects outward from the button hole 19. Accordingly, one end and the other end of the accessory Q are closed, and the accessory Q is mounted on the wrist.

Then, by pressing both pressing portions 24 of the push button 21 with fingers and pressing inward, the engaging projections 77 are pressed against the coil springs to push the engaging recesses 7.
9, the resilient force of the spring 87 causes the middle plate 72 to open to the side opposite to the outer plate 71, and the folded portion 2 </ b> X- 1 to expand from the outer plate 71 toward the front side of the accessory Q. Then, one end and the other end of the accessory Q are opened. In this way, the wheel formed by the accessory Q and the clasp structure is opened, and the accessory Q is removed from the wrist.

[0137]

As is apparent from the above description, the push button according to the present invention does not need to be provided with a hook portion that engages with the folding portion as in the prior art. Therefore, the push button can be formed in a simple shape, and the push button can be easily and inexpensively manufactured. In addition, since it is not necessary to provide an elastic means for urging the push button outward in parallel with the push button along the short direction of the accessory, the width of the clasp structure along the short direction of the accessory is reduced. be able to.

Further, in the clasp structure of the present invention, the engaging projection of the folding portion and the engaging recess of the outer plate are engaged in parallel along the transverse direction of the accessory. Therefore, the thickness of the accessory in the front and back direction can be reduced as compared with the conventional middle clasp in which the push button and the folding portion are vertically overlapped and engaged along the front and back direction of the accessory.

Also, the engaging projection of the folding part, the engaging recess of the side wall of the outer plate, and the push button may be juxtaposed along the transverse direction of the accessory, and may overlap each other vertically along the front and back directions of the accessory. Absent. Therefore, it is possible to reduce the thickness in the front and back direction of the accessory having the middle clasp structure.

Further, the clasp structure of the present invention can be formed as a double push type clasp structure having two push buttons. To release the fold from the skin, the two push buttons must be pressed together. Even if one of the push buttons is pressed to remove the case of one of the engagement protrusions and the engagement recess, the engagement between the other engagement protrusion and the engagement recess is maintained. Therefore, the folded portion cannot be opened from the outer plate only by pressing one of the push buttons. This is due to careless external load.
This means that the accessory does not fall off even if one of the push buttons is pressed. That is, it is possible to prevent the accessory from unintentionally falling off.

Further, the clasp structure of the present invention can be a double door type. By simply pressing one push button, the engagement between the first and second engagement protrusions and the engagement recesses can both be released. That is, by simply pressing one push button, the engagement between the first and second folds and the outer plate is easily released together, and the first and second folds are released from the outer plate. Can be. Further, if a pair of engaging projections is provided on each of the first and second folding portions, and a pair of side walls are provided on the outer plate, and an engaging recess and a push button are provided on each of them, a double-opening type is provided. And a double push type clasp structure.

Further, the first engaging projection serves also as a connecting part for rotatably connecting the other end of one of the middle plates and the one end of the accessory, and the second engaging projection serves as the other. By providing at least one of the middle plate and the connecting portion for rotatably connecting the other end of the accessory,
The number of parts can be reduced, and it can be easily assembled.

The first engaging projection is a pivot portion of a first spring bar rotatably connecting the other end of one of the middle plates and one end of the accessory, and A second projection for rotatably connecting the other middle plate to the other end of the accessory;
By providing at least one of the pivot portions of the spring bar described above, the pivot portion of the spring bar can be used as the engagement projection that also serves as the connection portion between the middle plate and the accessory. That is, the spring rod has elastic means (coil spring) for urging the pivot portions provided at both ends outward in the axial direction, and can be used as a connection shaft. Thus, one spring rod can also serve as the engagement protrusion, the elastic means for urging the engagement protrusion, and the connection between the middle plate and the accessory, and the number of parts can be greatly reduced. In particular, since the spring bar is provided with pivot portions at both ends thereof, it is suitable for a case where a pair of engaging projections are arranged on both edges of the folded portion along the longitudinal direction of the accessory.

Further, since the insertion hole is provided so as to open on the back surface of the side wall portion, the insertion hole is not visible when the accessory is viewed from the front side. Therefore, the appearance of the jewelry is not degraded.

The side wall portion of the clasp structure according to the present invention is formed by forming a side wall portion as a hollow body having a through hole by bending a protruding piece projecting from the outer plate, and filling the inside of the through hole with a core member. I do. Thereby, not only can the processing be easy, but also the side wall can be manufactured at extremely low cost.

The fixing means for fixing the retaining member and the side wall also serves as fixing means for fixing the core member and the side wall. Thereby, the number of parts and the processing load can be greatly reduced.

Further, the first, second,
The side wall having the third opening, the notch, and the through hole is easily completed. Further, since the outer plate having the side wall portion can be manufactured from the plate material only by press working, the working is easy and inexpensive.

Further, when the clasp structure of the present invention is of the double-open type, each of the first and second engaging protrusions is separately engaged with each of the pair of first and second engaging recesses. be able to.

[Brief description of the drawings]

FIG. 1 is a perspective view of a clasp structure of an accessory according to the present invention (Example 1).

FIG. 2 is an exploded perspective view of the clasp structure of the accessory (Example 1).

FIG. 3 is a perspective view of a disassembled state of a connecting portion between a front plate and an end of the accessory in the clasp structure of the accessory (Example 1).

FIG. 4 is a perspective view showing a deployed state of an outer plate in the clasp structure of the accessory (Example 1).

FIG. 5 is a perspective view of the outer panel.

FIG. 6 is a perspective view of a side wall portion of the outer panel.

FIG. 7 is a view from arrow K in FIG. 5;

FIG. 8 is a view as seen from an arrow L in FIG. 5;

FIG. 9 is a view as seen from the direction of arrow M in FIG. 5;

FIG. 10 is a sectional view taken along the line DD in FIG. 5;

FIG. 11 is a sectional view taken along the line EE in FIG. 5;

FIG. 12 is a perspective view showing a state where a core member is inserted into a side wall portion of the outer panel.

FIG. 13 is a perspective view showing a state where a push button is inserted into a core member in a side wall portion of the outer panel.

FIG. 14 is a perspective view showing a state where a push button is inserted into a concentric member.

FIG. 15 is a sectional view taken along the line FF of FIG. 13;

FIG. 16A is a side view of the retaining member.
(2) is a perspective view of the retaining member.

FIG. 17 is a perspective view showing a state where a retaining member is inserted into a side wall portion of the outer panel.

FIGS. 18 (1), (2), and (3) are explanatory views of the order in which a retaining member is inserted into the side wall of the outer plate.

FIG. 19 is a perspective view of a locking mechanism in which a push button, a core member, and a retaining member are housed in a side wall of the outer panel.

FIG. 20 is a perspective view of the locking mechanism with a part thereof omitted;

FIG. 21 is a partially omitted perspective view showing a state where a push button is pressed in the locking mechanism.

FIG. 22 is a view from arrow G in FIG. 18;

FIG. 23 is a sectional view taken along the line HH in FIG. 18;

FIG. 24 is a sectional view taken along line II of FIG. 18;

FIGS. 25 (1), (2) and (3) are explanatory views showing the order of connection between the outer plate and the middle plate.

FIG. 26 is an exploded perspective view of a first folding portion in the clasp structure of the personal ornament of the present invention (Example 1).

FIG. 27 is a perspective view of the first folded portion in an assembled state.

FIG. 28 is an operation explanatory view of the clasp structure of the personal ornament of the present invention (Example 1).

FIG. 29 is a cross-sectional view of (1) a first folding portion in the middle of folding as viewed from line JJ in FIG. 27; (2) is sectional drawing of the state which folded the 1st folding part.

FIG. 30 (1) is a perspective view of the first folding unit in the middle of folding. (2) is a perspective view of the state where the 1st folding part was folded.

FIG. 31 is a perspective view illustrating the behavior of the push button in a state where the first folding unit is folded.

FIG. 32 is a perspective view illustrating a state in which a push button is pressed to expand the first folding unit from the folded state.

FIG. 33 (1) is a cross-sectional view illustrating a state where a push button is pressed to expand the first folding unit from the folded state. FIG. 2B is a cross-sectional view of the first folded portion in the process of being expanded.

FIG. 34 (1) is an exploded perspective view of another embodiment of the first folded portion. (2) is a perspective view of the assembled state.

FIG. 35 is an exploded perspective view of another alternative embodiment of the first fold.

FIG. 36 is a perspective view of the same assembled state.

FIG. 37 is a side view of another alternative embodiment of the first fold.

FIG. 38 is a perspective view of another embodiment of the push button in an attached state.

FIG. 39 is an explanatory diagram of an attached state of the push button.

FIG. 40 is a perspective view of a clasp structure of an accessory according to the present invention (Example 2).

FIG. 41 is a perspective view of a clasp structure of an accessory according to the present invention (Example 3).

FIG. 42 (1) is a plan view of a clasp structure of a conventional accessory. (2) is a side view of the clasp structure.

FIG. 43 (1) is a perspective view of a disassembled state of a conventional push button having a clasp structure of an accessory and a push button mounting portion. (2) is the assembly drawing.

FIG. 44 is an exploded perspective view of a clasp structure of another conventional accessory.

FIG. 45 is a plan view of the push button mechanism of the clasp structure.

[Explanation of symbols]

 Reference Signs List 1 outer plate 2 one middle plate 3 the other middle plate 9 side wall 14 core member insertion hole (through hole) 15 first opening 16 notch 17 engagement recess 18 engagement recess 19 button hole (second opening) 21) push button 22 core member 23 retaining member 27 fourth opening 29 retaining projection 30 insertion hole (third opening) 46 engagement projection 2X-1 first folded portion 2X-2 second folded Department

Claims (15)

[Claims] 1. An end of an intermediate plate is connected to one end of an outer plate,
One end of the accessory is connected to the other end of the middle plate, the other end of the accessory is connected to the other end of the outer plate, and the folded portion formed by the middle plate and one end of the accessory is the folded portion. A clasp structure of the accessory which is folded and closed on the outer plate, comprising an engaging means for removably engaging the folding portion and the outer plate, wherein the engaging means is provided on the folding portion. An engaging projection urged outwardly of the folding section along the jewelry transverse direction by elastic means; and a folding recess formed on the outer plate so as to face the engaging projection. An engaging recess located outwardly along the short direction of the accessory and facing the inside of the outer plate; and a path from the outside of the outer plate to the inside of the engaging recess disposed on the outer plate. A push button that can be repeatedly moved, and by folding the foldable portion to the outer plate,
The engagement protrusion is inserted into the engagement recess to engage.
When the push button is pressed against the inside of the outer plate, the push button presses the engagement protrusion located inside the engagement recess, and the engagement protrusion is detached from the engagement recess. The featured clasp structure of accessories. 2. The outer plate has a side wall portion which is formed so as to rise from an edge portion along the longitudinal direction of the accessory toward the front side of the accessory and is located outside the folded portion along a shorter direction of the accessory. 2. The method according to claim 1, wherein the engaging recess is formed on an inner surface of the side plate facing inward of the outer plate, and the push button is disposed on an outer surface of the side plate facing outward of the outer plate. Middle clasp structure of the accessory described. 3. A pair of said engaging projections respectively arranged on both edges along the longitudinal direction of the accessory in said folding part;
A pair of the side walls formed so as to stand up at both side edges along the longitudinal direction of the accessory in the outer panel, the engagement recesses formed in each of the side walls, and the side walls are disposed. The clasp structure according to claim 2, further comprising the push button. 4. When the folded portion is a first folded portion, another middle plate is connected between the other end of the outer plate and the other end of the accessory, and the other middle plate is connected to the other middle plate. The other end of the accessory comprises a second folding portion, and the engaging protrusion is a first folding portion.
When the second projection is provided, the second folding section is provided with a second engagement projection urged outward by the elastic means to the outside of the other folding section along the jewelry transverse direction, When the first engagement protrusion and the second engagement protrusion are both inserted into the engagement recess and engaged with each other, and the push button is pressed inward of the side wall, the push button A button presses the first engagement protrusion and the second engagement protrusion located inside the engagement recess, and the first engagement protrusion and the second engagement protrusion are moved from the engagement recess. The clasp structure according to claim 2 or 3, wherein the clasp is detached from the engaging projection. 5. The first engaging projection part also serves as a connecting part for rotatably coupling the other end of the intermediate plate and one end of the accessory, and the second engaging projection. 5. The accessory according to any one of claims 1 to 4, further comprising at least one of: a portion that also serves as a connecting portion that rotatably connects the other middle plate and the other end of the accessory. Nakadome structure. 6. The first engagement projection is a pivot portion of a first spring bar rotatably connecting the other end of the middle plate and one end of the accessory, and the second engagement projection is a second spring. Wherein at least one of the engaging projections is a pivot portion of a second spring bar rotatably connecting the other middle plate and the other end of the accessory. The clasp structure of the accessory according to claim 5. 7. A button recess having a bottom surface facing the inside of the outer plate, wherein the side wall portion is recessed along the width direction of the accessory, and a part of the bottom surface from the outer surface. A button hole that penetrates the jewelry along the transverse direction, the push button is inserted into the button recess and has a size that cannot pass through the button hole; and A pressing portion extending outward and projecting outward of the side wall portion from the button hole; and a pressing portion extending toward the inside of the outer plate from the base portion and having a tip portion provided with the engaging protrusion. And an operating portion that comes into contact with the
Including a retaining member that is positioned closer to the inside of the outer plate than the base portion and is fixed to the side wall portion relative to the base portion other than the action portion, between the bottom surface and the retaining member. The base is configured to be able to repeatedly move along the jewelry transverse direction, whereby the push button is held on the side wall part so that the push button can be repeatedly moved along the jewelry transverse direction, and the base is the most 7. The accessory according to claim 2, wherein a space from a position of the action portion to a position on the inner side surface of the button recess when moved from the bottom surface is formed as the engagement recess. 8. Anchor structure. 8. The retaining member is inserted through an insertion hole formed through the back surface of the side wall portion toward the button concave portion, and the retaining member is guided by the insertion hole to form the retaining member. A fixing means for fixing the retaining member and the side wall portion so that one end near the front side of the accessory at the front side is located inside the button recess, and positioned at a position facing the base other than the action portion. The clasp structure according to claim 7, further comprising: 9. The side wall portion is formed as a hollow body having a through-hole penetrating along the length of the accessory by bending a protruding piece protruding from the outer plate along the width direction of the accessory. 9. The clasp structure according to claim 7, wherein a core member is inserted into the inside, and the through hole other than the button recess, the button hole, and the insertion hole is filled. 10. The side wall portion has a through hole penetrating the entire length along the longitudinal direction of the accessory, a first opening communicating from the inner side surface to the through hole, and communicating from the outer side surface to the through hole. And at a position opposed to the first opening,
A core having a second opening smaller than the first opening and a third opening communicating from the back surface of the side wall portion to the through hole, the core being inserted into the through hole and fixed to the side wall portion; A member is prepared, and the core member has a fourth opening penetrating in the transverse direction of the accessory in the same shape as the first opening, and penetrates outward from the fourth opening toward the back side of the accessory. A vertical hole, so that the core member is inserted into the through hole, the first opening and the fourth opening are aligned to form the button recess, and the second opening is formed by the button opening. A hole, and the third opening is aligned with the vertical hole to form the insertion hole. Further, the stopper member is inserted into the insertion hole, and the stopper member and the side wall are fixed by the fixing means. By fixing the part, the core member is inserted into the through hole. Clasp structure trinkets according to any one of claims 7 to 9 are constant. 11. The fixing means is formed on the retaining member, protrudes inward of the outer plate along the short direction of the accessory, and adjusts an inner diameter of the insertion hole along the short direction of the accessory. And a notch formed on the inner surface of the side wall and cut along the insertion hole so as to pass through the insertion hole. The retaining member is inserted into the hole, and the retaining surface is elastically deformed toward the inside of the outer plate by the retaining projection so that the inner surface of the side wall portion is elastically deformed toward the inside of the outer plate so as to expand the notch. The retaining projection and the side wall are fixed by passing a retaining projection through the insertion hole into the button recess and engaging the retaining projection with the button recess. Claims 8 to 10 The clasp structure according to any one of the above. 12. The first opening, the second opening, and the third opening are formed in a protruding piece protruding from the outer plate along the jewelry transverse direction, and the second opening is formed. The notch is cut from the opening to the tip of the protruding piece, and the protruding piece is inverted U-shaped so that the protruding piece faces the front side of the outer panel and the tip of the protruding piece faces the front side of the outer panel. The clasp structure of the personal ornament according to claim 10, wherein the protrusion is bent into a mold, and a gap forming the through hole is provided inside the bent protrusion, and the protrusion is formed into the side wall by bending. 13. The push button according to claim 1, wherein the push button includes a second action portion paired with the first action portion when the action portion is a first action portion. When the mating recess is formed, a space extending from the position of the second action portion when the base moves most toward the bottom surface to the opening of the button recess to the inner side surface is defined as the first engagement recess. And the second engagement recess forming a pair with the second engagement recess. The first engagement projection is inserted into and engaged with the first engagement recess, and the second engagement recess is engaged with the second engagement recess. When the push button is pressed inward of the side wall portion, the first action portion presses the first engagement protrusion portion, and the second The clasp structure according to any one of claims 4 to 12, wherein the action portion presses the second engagement protrusion. 14. The clasp structure according to claim 13, wherein the retaining member is located between the first operating portion and the second operating portion. 15. A connection structure of a bending member, comprising at least an outer plate and a middle plate, and connecting an end of the middle plate to an end of the outer plate, wherein the end portion of the outer plate and the middle plate are connected to each other. In connection with the end of the plate, at the end of the outer plate, a pair of deployed portions having a closed piece of an annular portion for connecting an outer plate is formed, and the pair of deployed portions is left as it is with the closed piece as it is. To form the pair of outer plate-side connecting annular portions, and a middle plate-side connecting annular portion formed at an end of the intermediate plate between the pair of outer plate-side connecting annular portions. The connecting pin is inserted into the outer plate side connecting annular portion and the intermediate plate side connecting annular portion, and the closing piece is bent in this state to fold the outer member. A connection structure for a center bending member, wherein the connection is performed by closing an outer opening of a plate-side connection annular portion.