JPH0345604Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The industrial field of application of the present invention is to freely adjust the length of one continuous net, and to fix it at the adjusted position. This is a field related to fasteners for netscles.

[Conventional technology]

BACKGROUND OF THE INVENTION A single necklace of a predetermined length is known, which is made of precious metal or the like and has links pressed into a flat, flat shape.

As described above, since the two ends of the netcress are not continuous, there is an advantage that the length can be freely adjusted and the size of the loop of the netcress can be freely selected.

Such a necklace can be maintained at a predetermined length by overlapping its ends and securing these parts with clasps.

[Problem that the invention attempts to solve]

However, in the case of the necklace having the above structure, there is a big problem in the structure of the clasp.

In other words, this type of netskure has a flat quadrilateral cross section, so the area of the top and bottom is large, so if the clasp is pressed from above and below, or if the clasp is loose, the surface pressed by the clasp may be scratched. If the clasp is loose or the clasp is loose, the netcress may move and rub against the corners of the clasp, resulting in large scratches.

Precious metal nets are often worn and tried on before purchase, so if the clasp is attached or detached each time, and if the clasp gets scratched as described above, the value of the item will be significantly reduced.

[Means for solving problems]

In the present invention, in order to solve the above-mentioned problems, it is possible to overlap and press the ends of the flat netcress together, and to fix the netcress, a protrusion protruding from the inner surface of the rotating member that can be opened and closed is used to fix the netcress. A structure is adopted in which the necklace can be fixed by fitting it into a recess formed at the side edge of the necklace and between the links.

[Effect]

When the above-described structure is adopted, the ends of the necklace are fixed by fitting the protrusion formed on the rotating frame side of the clasp into the recess formed between the links on the side edge of the necklace. Since this is done by a screw, there is no damage between the top and bottom of the necklace, and since it is done by fitting the fixing frame and the recessed part of the link, there is no looseness and the necklace can be fixed without damaging it.

〔Example〕

Hereinafter, the present invention will be explained in detail based on embodiments shown in the drawings.

FIG. 1 and the following illustrate an embodiment of the present invention.
As shown in FIG. 1, it is composed of a base frame 1 and a rotating frame 2.

Both are made of metal, synthetic resin, or the like, and the base frame 1 side is fixed to one end side of a flat necklace.

By the way, the base frame 1 has a flat substrate 3, and a pair of tongue pieces 4, 4 are connected to the upper side of the substrate 3 at both ends of the substrate 3 in the longitudinal direction and from one side edge in a continuous state from the substrate 3. It has been folded back to

The tip of each tongue piece 4 is a curved part 4a that is turned upward and backward on the upper surface on the opposite side of the board 3, and the distance between the lower surface of the tongue piece 4 near this curved part 4a and the board 3 is is slightly smaller than the distance between the lower surface of the tongue piece 4 near the base and the substrate 3.

Further, on the other side edge of the substrate 3, that is, on the side edge corresponding to the curved portions 4a of the tongue piece 4, a cylindrical portion 5 is formed in one-to-one correspondence with each curved portion 4a. There is.

A pin 6 is fitted into these cylindrical parts.

On the other hand, the rotating frame 2 has a substantially L-shaped cross section, with one end being thick and the other end being thin.

A cylindrical portion 7 that is fitted between the cylindrical portions 5 and 5 also protrudes from the side edge of the rotating frame 2 on the thick side. The shape of this cylindrical portion 7 is almost the same as that of the cylindrical portion 5, and is rotatably connected to the base frame 1 side via the pin 6.

Further, a projecting piece 8 extends from the center of the thick wall portion that is the free end side of the rotating frame 2, and this projecting piece 8 serves as a finger rest when opening and closing the rotating frame 2.

The entire width of the projecting piece 8 of this rotating frame 2 is the second
As shown in the figure, the length is approximately equal to the entire length of the tongue piece 4 of the base frame 1.

Further, the projecting piece 8 is located between the two tongue pieces 4, 4 of the base frame 1.

By the way, two protrusions 9, 9 are bored in the back surface of the rotating frame 2 on the thick side, as shown in FIG. The distance between the protrusions 9, 9 is approximately equal to the length of two links of a chain, which will be described later.

On the other hand, since the links 11 constituting the neckless 10 to which the fastener of the present invention is applied are pressed and crushed, they are arranged extremely closely together. And each link 11,1
A recessed portion 11a is formed between the spacer 1 and the left and right side edges thereof. The distance between these two recesses is equal to the distance between the projections 9, 9.

Next, a method of fixing a necklace using the fastener R configured as described above will be explained.

The back surface of the base frame 1 of the fastener R is fixed to the upper surface of one end side of the necklace 10 by brazing or other methods, as shown in FIG.

The cylindrical parts 5 and 7 face the side edge of the necklace 10.

If you want to fix the other end of the neckless 10 based on the above structure, first attach the end of the neckless 10 on the side where the fastener is not fixed to the board 3 from the free end side of the tongue pieces 4, 4. and the tongue piece 4.

Since a curved portion 4a is formed on the free end side of the tongue piece 4, insertion of the necklace 10 can be performed extremely easily.

In this manner, the rotating frame 2 is closed with one end of the necklace 10 inserted under the tongue piece 4.

Then, the thin wall portion on the free end side of the rotating frame 2 presses the upper side of the curved portion 4a of the tongue pieces 4, 4, and the protrusions 9,
It is fitted into recesses 11a, 11a formed on both sides of the individual links 11, 11.

As shown in FIGS. 5 and 6, the base of the projecting piece 8 has a downwardly bulging portion 8a formed on its back side.

By forming this bulge 8a, a narrow space 8b is formed between the bulge 8a and the back surface of the thick portion of the base of the rotating frame 2, as shown in FIG. .

Therefore, when the rotating frame 2 is closed, the curved portion 4a of the tongue piece 4 is elastically deformed and fitted into this narrow space 8b, as shown in FIG. 5, and the rotating frame is closed. In this state, the curved portion 4a fits into the space 8b, so that the rotating frame 2 is in a locked state, and the rotating frame 2 will not open unless a large force is applied to the projecting piece 8 to open it.

Since the projection 9 is accurately fitted into the recess 11a, the necklace 10 does not shift its position when the rotating frame 2 is closed and is accurately fixed.

Since this embodiment is configured as described above,
There is no possibility of misalignment of the netcress and the fastener, and since a fixing structure in which the netcress is overlapped and pressed is not adopted, the surface of the netcress is not scratched.

Further, since the projection 9 fits into the recess 11a, even if the recess 11a is damaged, this part will not be noticeable and will not reduce the product value since it is the side edge of the neck crease.

Further, since the length of the necklace can be adjusted with one touch by simply opening and closing the rotation frame 2, it is extremely easy to adjust the length of the necklace with one touch when fastening the necklace on the back side of the neck.

〔effect〕

As is clear from the above description, according to the present invention, a base frame is fixed to the upper surface of one end of a netskure, which is formed into a flat shape by connecting a large number of links and pressing and crushing each link. , Fold the tongue piece that holds the other end of the netskuresu to this base frame, and
It has a rotating frame that can be opened and closed with respect to the base frame and overlapped on the upper side of the tongue piece, and is fitted into a recess formed on the side edge of the link of the netskure on the back side of this rotating frame. Because it has a structure with protrusions that can be fixed, the netskuress is fixed by the protrusions on the rotating frame, and the surface of the netskuress is not damaged, and it can be fixed simply by rotating the rotating frame. The necklace can be fixed and the length can be adjusted freely, so even if it is operated from the back of the neck, it can be operated with a single touch, making it extremely easy to use.

[Brief explanation of the drawing]

The figure is for explaining one embodiment of the present invention.
The figure is an exploded perspective view of the clasp, Figure 2 is a perspective view of the clasp in a closed state, Figure 3 is a plan view of the neckless in a fixed state, and Figure 4 is an enlarged cross-section taken along line A-A in Figure 3. Figure 5 is an enlarged sectional view taken along the line B-B in Figure 3, Figure 6 is a sectional view of the fastener with the rotating frame open, and Figure 7 is a sectional view taken along the line CC in Figure 4. , FIG. 8 is a plan view of the necklace with the fastener attached. 1... Base frame, 2... Rotating frame, 3... Board, 4...
... tongue piece, 4a ... curved part, 5, 7 ... cylindrical part,
6...Pin, 8...Protrusion, 9...Protrusion, 10...
Netskuresu, 11... link, 11a... recess.

Claims (1)

[Scope of utility model registration request] 1 made by connecting a large number of links, all of which are pressed together, and formed into a flat band shape.
A base frame 1 fixed to one end side of the netskure of the book,
It consists of a rotating frame 2 which is rotatably connected to this base frame 1, and the base frame 1 has a quadrilateral shape with a substrate 3, and the base frame 1 is continuous from one side edge at both longitudinal ends of this substrate 3. The tongue pieces 4, 4 have tongues 4, 4 having a curved part 4a which is folded back upwardly and the tip part is further folded back upwardly. The rotating frame 2 has a substantially L-shaped cross section, and the cylindrical parts 5, 5 of the base frame 1 are provided at the center of the side edges of the thick part of the base. 5, and a cylindrical portion 7 that is rotatably connected by a pin 6, and a projecting piece 8 is provided at the center of the connecting portion on the free end side of the rotating frame 2. A bulging portion 8a is formed inside the base of the protruding piece 8, and a link 11 constituting the neckless 10 is formed inside the thick portion of the base of the rotating frame 2.
The concave portion 11 between the links 11 is spaced apart from each other by two pieces.
A fastener for a necklace, characterized in that protrusions 9, 9 which are fitted into the parts (a) are provided in a protruding manner.