JPH052093Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention has a slider that releases the male tool that is inserted and locked, and it is easy to engage and disengage, and when engaged, the female and male To provide thin buckles which prevent the buckles from coming apart due to tilting.

(Prior art) Among the buckles used in conventional helmets, etc., in which the male fitting is pushed into the female fitting and engaged, the male fitting is inserted and locked into the female fitting. Directly bend the retaining piece inward with your fingers,
The female and male buckles are opened by releasing the locking piece from the female fitting and then pulling out the male fitting from the female fitting. In addition, if the male and female buckles tilt relative to each other, the locking claw of the male tool that is locked to the female tool will come off, and the buckle that is locked will be released and detached. Like a buckle, a groove is provided in the center of the insertion surface of the male tool in the direction of insertion, and a protrusion that engages in the groove is provided on the inner surface of the female tool into which the male tool is inserted. The male tool and the female tool engage with each other facing each other,
It was designed to fit together so that it would not tilt.

(Problem to be solved by the invention) However, as described above, the locking piece of the male tool that is engaged with the female tool is directly picked up with the fingers, and the locking piece is bent so as to narrow inside the female tool. In the method of disengaging the locking edge of the female fitting, firstly, the gripping part of the locking piece is small, and it is difficult to push it into the female fitting quickly and reliably, and even if it is pushed in, it often fails. There were cases where the male tool was not released from the female tool. or,
In this method of directly pushing the locking piece of the male fitting into the female fitting with fingers, a relatively large force is required to push the locking piece, and the locking piece is pushed in in a direction substantially perpendicular to the direction in which the locking piece is pushed. It was necessary to pull and release the male tool while continuing this pushing motion. As a result, it was difficult to open the male and female buckles, making it unsuitable for use by young and old people, and also making it unsuitable for buckles that require opening in an emergency.

Furthermore, in the case of buckles where the locking piece is directly pushed into the female fitting with fingers, this locking piece is often provided in a state that projects outward from the side of the female fitting. There was an inconvenience that the male and female buckles were unexpectedly released due to contact with other objects.

In addition, in the buckle provided with the above-mentioned protrusions and grooves intended to eliminate tilting of the male and female buckles that are fitted together, the grooves are provided on both the front and back surfaces of the male buckle, and the female buckle is also provided with corresponding protrusions. Although the provision of the buckle has a great effect of preventing the male and female buckles from tilting relative to each other and coming off, it has the disadvantage that the fitting gap between the male and female buckles becomes large and the buckle itself becomes thick. Ta. Therefore, if the fitting groove is provided only on one side of the male fitting, and the corresponding protruding groove on the female fitting is also made only on one side, the fitting directionality will occur in the fitting of the buckles, and the mutual relationship between the buckles will be Even when engagement is urgently required, it is necessary to insert the male tool into the female tool while matching the front and back sides of the fitting.

Furthermore, if the depth of the groove is made shallower in order to reduce the thickness and width of the buckle, and the height of the corresponding protrusion is made lower, the engagement between the male and female buckles becomes insufficient and naturally they tend to come off easily. Furthermore, if the depth of the grooves were increased in this state, the strength of the male tool would be significantly reduced and the buckle would have to be thicker than a certain level.

The buckle according to the present invention allows the male and female buckles to be opened quickly, reliably, and easily by using a slider provided on the female tool to release the locking piece of the male tool that is resiliently locked to the female tool. This makes it possible to open the buckle reliably even if you are not familiar with the operation or in an emergency, and the locking piece that is attached to the female fitting may come into contact with another object and cause the male fitting to accidentally release the female fitting. In addition to eliminating the inconvenience of the male and female buckles being separated from each other, the locking piece of the male buckle continues to be reliably engaged with the female buckle even when an external force in the torsion direction is applied to each other, and it is thin and has sufficient strength. The purpose is to provide battles.

(Means for solving the problem) In order to achieve the above object, the present invention
A buckle is formed by the female tool B and the slider C, and first there is a gripping part 1 having a slit for connecting the male tool A to a belt, etc., and a flat part protruding integrally from the gripping part 1. It is formed of an insertion part 2 which is narrower than the gripping part 1, and a pair of elastic pieces 3, 3 provided along both side edges of the insertion part 2 from the free end side of the insertion part 2. , both sides of the base of the insertion portion 2 are provided with side vibration prevention step portions 4 protruding laterally from the outer surface of the elastic piece 3, and the free end side of the elastic piece 3 is provided with the side vibration prevention step portion 4. A locking protrusion 5 is provided so as to protrude outward from a position on the extension of the side surface, and a locking protrusion 5 is provided at the free end of the insertion portion 2 on both sides with a width within the distance between the side surfaces of the side vibration prevention stepped portion 4. It is constructed by providing a flat engaging head 6 that protrudes toward the side.

The female tool B has a flat box-shaped main body part 8 with an opening 9 on one side surface 8a and into which the male tool A is removably inserted, and the other side surface 8b of the main body part 8. It consists of a gripping part 11 having a slit for connecting a belt or the like along the opening 9, and an opening edge 9' and a gripping part 11 on the other pair of side surfaces 8c and 8d of the main body part 8. A window 13 is opened in between, and a receiving part 14 is provided in the inner part of the main body part 8, on which the free end side of the insertion part 2 of the male tool A comes into contact. It is provided in an inclined tapered shape. Further, on both inner surfaces of the opening edge 9', an engagement step 15 is provided on which the lateral vibration prevention step 4 provided at the base of the insertion portion 2 of the male tool A is supported.
is provided.

Furthermore, the slider C has a main body portion 8 of the female tool B.
It is a substantially U-shaped sliding body that straddles the top wall 10 of the female tool 8 and slides along the edge of the window between the gripping part 11 of the female tool 8 and the opening edge 9' of the main body part 8. Both sides of the sliding body are provided with gripping parts 17, 17, and a groove 17a is provided at the inner upper part of the gripping part 17, into which the top wall edge 10a on the upper edge of the window edge is inserted. ing.

(Function) The buckle having the above-mentioned configuration allows the slider C to be moved in such a way that the top wall edge 10a on the upper edge of the window 13 of the female tool B is inserted into the groove 17a on the inside upper part of the gripping part 17 of the slider C. It is slidably straddled over the top wall 10 of the female tool B. Therefore, despite the existence of the slider C of the female tool B, the male tool A inserts the insertion part 2 of the male tool A into the main body part 8 of the female tool B against the elastic force of the elastic piece 3 of the male tool A. By pushing in the elastic piece 3, the elastic piece 3 is elastically deformed and narrowed, and when it passes through the opening edge 9', it elastically returns to its original position, protruding the locking protrusion 5 outward from the surface of the window 13, and closing the opening. It is locked to tool B.

In such a state, even if the male tool A and the female tool B are strongly pulled in the direction of disengaging each other, the locking protrusion 5 will come into contact with the rear surface of the opening edge 9' and will not come off.
Further, the rolling prevention step 4 at the base of the male tool A forming the buckle is supported by the engagement step 15 formed in the opening edge 9' of the female tool B, and the insertion portion 2 of the male tool A Since the free end side of the male tool A and the female tool B are supported by the tapered receiving part 14 of the female tool B, the male tool A and the female tool B do not tilt relative to each other in the lateral direction.

Furthermore, when disengaging the male tool A and the female tool B that constitute the buckle, it is sufficient to simply pull the slider C toward the opening edge 9' of the female tool B; As a result, the inner surface of the gripping portion 17 of the slider C comes into contact with the outer surface of the locking projection 5 of the male tool A, and the locking projection 5 is pushed inward from the surface of the window 13. The locking protrusion 5 of the elastic piece 3 slides inward along the inner inclined surface 15b of the engagement step part 15, and the insertion part 2 of the male tool A is inserted into the female tool B by the elastic restoring force of the elastic piece 3. The male buckle is disengaged.

(Example) An example of the present invention will be described below with reference to the drawings.

A is a male buckle made of synthetic resin, which includes a gripping part 1 having a belt connecting part, and a flat part protruding from the gripping part 1, which is narrower than the gripping part 1. , and an insertion part 2 formed thinner than the gripping part 1.

The gripping portion 1 has belt connecting rods 1c, 1d provided in the width direction, and slits 1a, 1b for inserting belts, etc. in the width direction of the gripping portion.
It is divided by 1d. Also, connecting rod 1
c and 1d are provided in parallel with different levels, and are inserted into the slit 1b from the bottom side in Fig. 1 to connect the connecting rod 1.
Pass the belt wound around d from slit 1a to connecting rod 1.
The belt is connected to the male tool A by detouring and pulling out the bottom surface of the belt.

In addition, in order to ensure that the fitting upper and lower surfaces of the male fitting A and female fitting B forming the buckle are on the same plane when the insertion part 2 is engaged with the female fitting B described later, a comparison of the pinching part 1 is made. It is provided protrudingly near the bottom surface of the target (as shown in the first diagram). The gripping part 1 of the male tool A is curved slightly toward the bottom side on the side where the connecting rod c is provided, so that the male tool A is given front and back directionality.
(Hereinafter, the upper and lower sides in FIG. 1 will be referred to as the upper and lower sides of the male tool A and the female tool B.) Next, the insertion section 2 has a substantially tapered shape, and a pair of sections extend from the free end side of the insertion section 2 along both side edges. The elastic pieces 3, 3 are formed by slits 2a, and both sides of the base of the insertion portion 2, which are distinguished from the elastic pieces 3 by the slits 2a, protrude laterally from the outer surface 3a of the elastic piece 3. and
The lateral vibration prevention stepped portion 4 is made up of side surfaces 4a that are parallel to each other and inclined side surfaces 4b that are adjacent to each other in the direction of the free end.

Further, on the free end side of the insertion portion 2 of the elastic piece 3, a locking protrusion 5 is provided, at least a part of which protrudes outward from a position on the extension line of the inclined side surface 4b of the step portion 4. is integrally formed along the outer surface 3a of the elastic piece 3 toward the side further from the outer surface 3a.

That is, this elastic piece 3 has a locking step portion formed between the locking protrusion 5 on its free end side and the original outer surface 3a of the elastic piece 3, which will be explained later. The locking protrusion 5 is attached to the edge on the near side of the window edge of tool B, and the outer surface 3a is attached to the inner wall surface of the window edge. As long as it has such a function, the locking protrusion 5 does not need to be provided long along the outer side 3a of the elastic piece 3, and its free end side is engaged with the inner wall surface of the window edge of the female fitting B. A convex locking protrusion 5 is provided at the position where the outer surface 3a required for this engagement is placed, and the other outer surface of the elastic piece 3 is an extension of the outer surface 3a. It may be provided above.

Note that the elastic piece 3 separated from the insertion part 2 by the slit 2a has strong elastic deformation, and if the fit is too tight during operation, a concave notch 2b is formed in the insertion part 2 at the base of the elastic piece 3. is provided, and the width of the base of the elastic piece 3 is limited by the slit 2a and the recessed notch 2b. Therefore, the pressing force required for elastic deformation of the elastic piece 3 can be freely set, and the strength of the fit between the male and female buckles can be arbitrarily set.

Further, the free end of the insertion portion 2 has the recessed portion 2a,
It extends flatly from the position 2b toward the tip on both sides, and has a flat engaging head 6 whose tip and side surfaces are integrally rounded. Two upper and lower step portions 6a and 6b are provided, respectively, which extend laterally, and are formed so that the step gradually disappears toward the distal end surface.

Further, this engaging head 6 has a width narrower than the distance between the side surfaces 4a, 4a of the above-mentioned lateral vibration prevention step portions 4, 4, so that it does not interfere with the prevention of lateral vibration of the step portions 4, 4. It is said that

Furthermore, a groove 7 for preventing formation distortion is provided in the center of both upper and lower surfaces of the insertion portion 2 from the base to the free end.

Next, B is a similar female fitting made of synthetic resin,
A flat box-shaped main body part 8 having one side surface 8a as an opening part 9 and into which the male tool A is removably inserted;
A gripping portion 11 that is integrally provided along the other side surface 8b of the main body portion 8 and has a slightly higher height than the main body portion 8
It is made up of. In addition, a slit 11a in the width direction is formed in the gripping part 11 between it and a connecting rod 11b such as a belt, and the free end side is slightly curved toward the bottom side like the male tool A. When fitting with the male tool A, it is possible to check whether the female tool B is facing upward or downward.

Further, the other pair of side surfaces 8 in the main body portion 8
c, 8d are cut out along with both side portions of the top wall 10 which is continuous with the side wall 12, leaving a lower part of the side wall 12 between the opening edge 9' and the opening 9, and forming a window 13. has been established. Further, the deep part of the main body part 8, that is, the side of the gripping part 11 has both inner surfaces 14a, 1
The receiving portion 14 has a tapered shape with the portion 4a inclined. Further, on the inner bottom surface 8e of the main body part 8, there is provided a space between the inner bottom surface 8e of the receiving part 14 and the inner surface 14a of the receiving part 14 so that a protrusion of a slider C, which will be described later, can enter therein. A low-sized projecting wall 12' that contacts the lower stage 6b of the projecting wall 12' is provided, and the inner surface of the projecting wall 12' on the opening side is an inclined surface 12'a, which is suitable for smooth insertion of the male tool A. It is said that

Further, the inside of the opening edge 9' is continuous with a surface 15a parallel to the insertion direction corresponding to the outer surface 4a of the lateral vibration prevention step 4 of the male tool A inserted into the main body 8. The engaging stepped portion 15 is formed by an inclined surface 15b corresponding to the inclined surface 4b of the stepped portion 4.

Further, gates 9'', 9'' are provided in a stepped manner extending from the top of both sides of the opening edge 9' to both sides of the upper surface of the ceiling wall 10.

Next, C is the top wall 10 of the main body part 8 of the female tool B.
It is a slider made of synthetic resin that is provided astride the top wall, and includes a narrow plate-shaped sliding portion 16 that slides on the ceiling wall 10, and gripping portions 17, 17 that are provided perpendicularly at each end of the sliding portion 16. It forms a roughly U-shape.

Furthermore, the outer surface of the gripping part 17 is provided with uneven stripes for preventing slipping, and the inner upper part is provided with the window 1 of the female tool B.
Groove 1 that engages the top wall edge 10a located at the upper edge of 3
7a is provided. Further, a plate portion 16a protruding to one side of the central side of the sliding portion 16 is provided on the same plane as the sliding portion 16, and the female fitting B
Since the slider C is slid by using the gates 9'' and 9'' as guides and being held by both sides of the gates, the slider C does not tilt at all during the sliding operation, and the male and female parts are pressed together with uniform pressure. Elastic piece 3 of tool A
can be bent inward. Also, the protrusion width m of this plate portion 16 is determined by the gate 9'' of the female fitting B,
By making the width m larger than 9", the slider C installed astride the top wall 10 of the female fitting B can be
The plate portion 16a of the female tool B can be slid to protrude forward from the opening edge 9'. As a result, the gripping portion 1 of the male tool A fitted into the female tool B is moved by the slider C.
The male tool A can be removed more smoothly than the female tool B. Furthermore, inside the free end which is the lower end of the gripping part 17, there is a window 1 of the female tool B.
3 is provided with a protrusion 17b that engages with the inner surface of the side wall 12 at the lower edge of the window 13 and slides on the inner bottom surface 8e of the main body 8 of the female tool B. The gripping portion 17 that engages the located ceiling wall edge 10a
Together with the structure of the groove 17a on the inner upper part of the slider C, the slider C is provided for reliable engagement with the female tool B.

Considering the configuration described above, the buckle according to the present invention is constructed by first aligning the curving direction of the gripping part 1 of the male tool A with the curving direction of the gripping part 11 of the female tool B, and then The insertion portion 2 is pushed into the main body portion 8 of the female tool B through the opening 9 thereof. As the male tool A is pushed in, the elastic piece 3 in the insertion part 2 of the male tool A is bent inward at the surface 15a of the opening edge 9' of the female tool B, and is elastically deformed toward its center line. However, when the locking protrusion 5 on the elastic piece 3 comes off the slope 15b of the engagement step 15 provided on the opening edge 9', it springs outward from the window 13 and closes the window 13. The locking protrusion 5 is brought into contact with a surface 9'a on the opening edge 9'. At this time, the outer surface 3a on the free end side of the elastic piece 3 is aligned with the inclined surface 1 of the opening edge 9' of the female fitting B
5b, even if the male tool A inserted into the female tool B is strongly pulled in the pulling direction, the elastic piece 3 may become narrowed inward or swell outward. Therefore, the male tool A locked to the female tool B will not come off.

In addition, the locking head 6 on the free end side of the insertion portion 2 of the male tool A is vertically stepped, and the projecting wall 12' of the female tool B is configured to fit into this stepped portion. Even if the male and female buckles are inserted by mistake, the male and female buckles will not be engaged.

Furthermore, by inserting the male tool A into the female tool B,
The slider C on the female tool B is pushed into the gripping part 11 of the female tool B by the elastic piece 3 of the male tool A,
The protrusion 17b of the slider C is engaged between the inner surface 14a of the female tool B and the protruding wall 12'. As a result, even when a strong pressing force is applied to the gripping portion 17 of the slider C, the protrusion 17b of the slider C does not bend inward, causing the elastic piece 3 of the male tool A to tighten inward. There is no chance of getting pregnant.

In addition, the male tool A has the engagement head 6 of the insertion portion 2 supported within the receiving portion 14 along the protruding piece 12', and
Since the locking protrusion 5 is engaged with the engagement step 15 while the lateral shake prevention step 4 is tightly housed within the opening edge 9', the female buckle is There is no rattling in the width direction in the condition of
The male tool A is prevented from coming off due to the elastic piece 3 starting to flex due to this wobbling in the width direction.

Next, the engagement of the male and female buckles is released by sliding the slider C. At this time, slider C
The male tool A is brought into sliding contact so as to be pulled back toward the opening 9 of the female tool B, so that both inner surfaces of the gripping portion 17 of the slider C protrude from the window 13 of the female tool B.
When the elastic piece 3 of the slider C is bent inward and the locking protrusion 5 on the elastic piece 3 is disengaged from the engagement stepped portion 15 of the female tool B, the plate portion 16a of the slider C is inserted into the male tool. Pushing the gripping part 1 of A acts to push the male tool A out of the female tool B.

With this disengagement, the male tool A releases its elastic piece 3.
The outer surface of the female tool B slides along the inclined surface 15b,
As the slider C is pushed by the plate portion 16a, it is pushed outward from the female tool B with a strength corresponding to the resilient restoring force of the elastic piece 3.

In addition, the slider C mentioned above is attached to the top wall 10 of the female fitting B.
The top wall edge 10a on both sides of the top wall 10 is inserted into the groove 17a, and the protrusion 17b is brought into contact with the inner surface of the side wall 12 of the female fitting B. Since the slider C is attached to the female fitting B, once it is attached to the female fitting B, the slider C will not come off from the female fitting B even in response to an external force from any direction. Also, the slider C attached to the female tool B
In this case, the plate portion 16a is slid while being in close contact with the upper surface of the top wall 10 of the female tool B, and the plate portion 16 is also slid while being sandwiched between the gates 9'', 9'' of the female tool B. Because of this structure, the slider C is always moved parallel to the insertion hole of the male tool in the female tool B, and does not slide in an inclined state. As a result, the slider C does not interfere with the insertion of the male tool A, and when removing the male tool A, it pushes out the elastic pieces 3, 3 of the male tool A with equal pressure, and the slider C does not interfere with the insertion of the male tool A. By pushing the part 1, the male tool can be reliably removed with a light pressing force.

(Effects) The buckle according to the present invention is configured as described above, and the lock is tightened by elastic deformation of the elastic piece 3 provided on the insertion part 2 of the male tool A inserted into the female tool B of the buckle. After the protrusion 5 passes through the opening edge 9' of the female tool main body 8, it returns and locks on the rear surface 9'a of this opening edge 9', and especially on both sides of the base of the insertion section 2 of the male tool A. The provided lateral vibration prevention step portion 4 is connected to the engagement step portions 15, 15 provided on both sides of the opening edge 9' of the female tool B.
At the same time, the engaging head 6 provided at the free end of the insertion section 2 comes into contact with the receiving section 14 at the inner part of the main body section 8, and the inclined surfaces 14a, 14
Since it is supported between A and B, there is no need to provide protrusions and grooves in the insertion direction of the sliding surfaces of the male and female fittings to prevent side contact, unlike conventional buckles. The male tool A and the female tool B are reliably engaged without any sideways movement, and the female and male buckles once engaged will not come off without operating the slider C.

Furthermore, since there are no protrusions or grooves on the male and female parts, the thickness of the buckle can be made thinner.

Furthermore, since the slider C is formed separately from the male and female buckles, coloring, marking, etc. can be done freely, and since the slider C can be attached to the female buckle B by simply fitting it, assembly costs can be reduced. It is considered cheap.

In addition, since the means for releasing the male and female buckles is simply sliding the slider C attached to the female tool B in the pulling direction, it is not necessary to pinch it with your fingertips like in conventional buckles, or to release the male tool. There is no need to push it in in a direction perpendicular to the pulling direction, and the male and female buckles can be opened by simply grasping the slider C and pulling the male tool A in the pulling direction.

This makes it easy to open the male and female buckles, allowing the opening operation to be performed even when wearing thick gloves, and is suitable for buckles where opening of the male and female buckles is urgently required.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of an embodiment of the buckle according to the present invention, Fig. 2 is a side view of the buckle in the engaged state, Fig. 3 is a sectional view of the same, Fig. 4 is a sectional view of the same when inserted, and Fig. 5 is a sectional view of the buckle when it is inserted. The figure is a cross-sectional view of the same at the time of starting disengagement, and FIG. 6 is a cross-sectional view showing the assembled state of the female tool and the slider C. A...male tool, B...female tool, C...slider,
1...Gripping part, 2...Insertion part, 3...Elastic piece, 4
... Lateral vibration prevention step, 5... Locking protrusion, 6... Locking head, 7... Concave groove, 8... Main body, 9... Opening, 9'... Opening edge, 10...Ceiling wall, 11...
Grasping part, 12... Side wall, 13... Window, 14... Receiving part, 15... Engaging step part, 16... Sliding part, 17...
...Gripping part.

Claims (1)

[Claims for Utility Model Registration] A gripping portion having a slit for attaching a belt, etc., and an insertion portion integrally projecting from the gripping portion and having a flat and narrower width than the gripping portion. and a pair of elastic pieces provided from the free end side of the insertion part along both side edges of the insertion part, and both sides of the base of the insertion part protrude laterally from the outer surface of the elastic pieces. A locking protrusion is provided on the free end side of the elastic piece and protrudes outward from the side surface of the lateral vibration prevention step, and the free end of the insertion portion is a vibration prevention step. A male tool is provided on the side with a flat retaining head that protrudes to both sides with a width within the distance between the side surfaces of the lateral shake prevention step, and one side is an opening, and the male tool It consists of a flat box-shaped main body into which the main body is removably inserted, and a gripping part having a slit for hitting a belt or the like along the other side of the main body. Windows are provided on both sides of the opening between the opening edge of the opening and the gripping part, and both sides of the free end side of the insertion part of the male tool are provided in the inner part of the main body. Tapered receiving portions that are in contact with each other and are inclined to each other are provided, and side vibration prevention step portions provided at the base of the insertion portion of the male tool are supported on both inner surfaces of the opening edge. a female fitting on which an engagement stepped portion is formed; and a female fitting that straddles the top wall of the main body of the female fitting and extends along the edge of the window between the gripping part of the female fitting and the opening edge of the main body. The sliding body has a substantially U-shape that slides, and both sides of the sliding body are used as gripping parts, and the top wall edge of the upper edge of the window fits into the inner upper part of the gripping part. A buckle characterized by comprising a slider provided with a groove.