JPH0586214U - Clasps in jewelry - Google Patents

Abstract

(57) [Abstract] [Purpose] As a clasp for necklace accessories such as necklaces, the female and male tools that compose the clasp can be prevented from accidentally coming off, and both can be connected and separated by one-touch operation. Provide things. [Structure] A pair of locking claw members 20 are provided in the female tool 11,
When the male tool 12 is inserted through the mouth portion 18, the male tool 12
The locking claw member 20 is engaged with the recesses 12a provided at both sides of the locking claw member 20 by the force of the spiral spring 22, and the locking claw member 20 is rotated by the operation portion 20c protruding to the outside. Sometimes, the above-mentioned engagement is released.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a clasp for a necklace accessory such as a necklace or a pendant.

[0002]

[Prior Art]

 Necklaces, pendants, and other ring-shaped accessories usually use various clasps made of female tools to connect both ends of continuous threads or chains. FIGS. 5 and 6 show the basic structure of the example. This clasp consists of a female tool 1 and a male tool 2. The female tool 1 has a box shape with a cavity 3 inside, and one side has one side. A convex mouth portion 4 is formed with the upper left and right portions as receiving portions 4a when viewed from the front. Further, the male tool 2 has a width that can be inserted into the cavity 3 from the front of the mouth portion 4 and has a V-shaped side cross section. The upper piece 5a of the elastic piece 5 formed on the left side is provided with shoulder portions 6 on the left and right sides, and the piece is extended forward in the middle of the required width of these shoulder portions to form an L shape outward and upward. In addition to forming a pressing piece 7 that is bent at the same time, an end plate 8 having a recess 8a into which the base of the pressing piece 7 is inserted is formed at the end of the lower piece 5b of the elastic piece at a right angle to the lower piece. It has a configuration provided as. Further, hooking tools 1a and 2a for engaging both ends of the continuous yarn (or chain) 9 are provided at the outer ends of the female and male tools 1 and 2, respectively.

As shown in FIG. 5, the clasp is configured such that the V-shaped tip of the elastic piece 5 is pushed into the female tool 1 through the mouth portion 4 with the female and male tools 1 and 2 facing each other. When the elastic pieces are inserted into the cavity 3 by pressing the upper and lower pieces in the direction of narrowing the opening angle, the opening angle is restored to the old one, and the left and right shoulders 6 are the inner surface of the receiving portion 4a of the mouth. And the connection is completed (Fig. 6). Further, when the two are to be separated from each other, the male piece 2 may be pulled out from the state shown in FIG. 6 by pressing the upper piece 5a to the lower piece 5b by the pressing piece 7.

By the way, when the above-mentioned conventional clasp is used, the male tool 2 is different from the female tool 1 when the engagement of the shoulder portion 6 with respect to the receiving portion 4a is incomplete, or when an unexpected external force is applied to the pressing piece 7. By slipping out, you will be liberated and you will drop your jewelry. Therefore, as a countermeasure against this, as shown in FIG. 7, a headed projection 1b is erected on the outer side of the female tool 1, and a retaining ring 2c is provided at one end of an end plate 8 provided on the male tool 2 via a shaft tube 2b. When the female tool 1 and the male tool 2 are connected as described above, the retaining ring 2c is pivoted to the side surface of the female tool 1 to engage with the protrusion 1b. Measures are taken to keep the connection between the two safe.

[0005]

[Problems to be solved by the device]

 However, in the structure shown in FIG. 7, the operation of attaching / detaching the female and male tools 1 and 2 requires two steps, and not only is it troublesome to handle, but this makes it difficult for the male and female tools to have uneven projections on the side surfaces. Occurs, which impairs the aesthetics of the ornament, and also causes the inconvenience of these protrusions hooking the hair or the collar.

The present invention addresses the above situation and provides a clasp that is easy to operate without providing a protrusion on the side surface of each male and female tool and preventing accidental disengagement of these male and female tools. The purpose is to

[0007]

[Means for Solving the Problems]

 That is, the present invention comprises a male tool and a female tool into / from which the male tool is inserted / removed. The male tool has recesses formed on both sides of the tip side, and the end face shape of the tip is substantially semicircular. The female member of the other side is formed into a box shape with a hollow inside, and a front end on one end side is provided with a mouth through which the tip of the male member can be inserted and removed. A pair of locking claw members pivotally supported on both sides of the male tool to be inserted, and a spring in a direction to engage with the recess of the male tool to be inserted into these locking claw members. A spring member for urging force is provided, which is formed integrally with both the locking claw members to manually rotate these engaging claw members against the above spring members in the direction to remove them from the recesses. The operating portion of is projected to the outside at the other end side of the female tool.

[0008]

[Action]

 According to the present invention described above, when the male tool is inserted into the mouth of the female tool from the tip side, the curved surface of the male tool tip presses the pair of locking claw members against the spring member to cause the male tool. When the tip of the male tool is inserted between the pair of locking claw members, the locking claw member returns to the old position and is locked in the recess of the male tool. The tools are connected.

In this connected state, the operating portion projecting from the female tool is pressed to simultaneously rotate the pair of locking claw members against the spring member, and these locking claw members are moved. At the same time, the male tool will not come off from the female tool unless it is removed from the recess.

[0010]

【Example】

 Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

1 to 4, 11 is a female tool of the clasp 10 and 12 is the same male tool. One female tool 11 has a box body 13 and an upper box body as shown in FIG. , Which are joined to each other by screwing the screws 16 to 16 from the box body 13 to a plurality of screw cylinder portions 15 to 15 formed on the lower surface of the lid body 14, and The above-mentioned female tool 11 having a hollow 17 is formed. In addition, the box body 13 is provided with a mouth portion 18 having a width that allows the male tool 12 to be inserted and removed from the front surface of the female tool 11 on one end side, and the male tool 12 to be inserted from the mouth portion 18 is inserted into the cavity 17 from both sides. A pair of support shafts 19 and 19 are erected at the sandwiched positions, and locking claw members 20 and 20 are rotatably fitted to the support shafts 19 and 19, respectively.

Further, another support shaft 21 is erected at an intermediate position between the support shafts 19 and 19, and a spiral spring 22 is attached to the support shaft 21. The spiral spring 22 applies a rotational force in the direction of the arrow a shown in FIG. 4 to the locking claw members 20 and 20, and is more female than the support shafts 19 and 19 of the locking claw members 20 and 20. The ends 22a, 22a of the spiral spring 22 are fitted into the grooves 20a, 20a formed at the other end side of the tool.

On the other hand, the locking claw members 20, 20 are for engaging the recesses 12a, 12a of the male tool 12 described later to prevent the male tool 12 from coming off. Each of the hooks 20b is formed at the tip of the mouth 18 with the support shaft 19 sandwiched therebetween, and the opposite rear end is an operating portion 20c for manual operation in which the outer edge is formed in an arc shape. The operation parts 20c, 20c are projected to the outside from the openings 23, 23 provided in the box body 13. The shape (size) of the openings 23, 23 limits the rotation range of the locking claw members 20, 20.

On the other hand, the male tool 12 is a plate-like body, and the above-described recesses 12a, 12a are formed on both sides near the tip, and the end face shape of the tip from these recesses 12a, 12a is substantially. It is a semicircular curved surface 24. Further, it is a wide stopper portion 12c at the rear end portion.

In the case of the above-mentioned configuration, as shown in FIG. 1, from the state where the female tool 11 and the male tool 12 are disconnected from each other, the male tool 12 is passed through the mouth 18 from the tip of the male tool 12 and the cavity of the female tool 11 is removed. When it is inserted into 17, the curved surface 24 at the tip of the male tool first hits the hook portions 20b, 20b of the locking claw members 20, 20 and is urged to rotate in the direction of arrow a in FIG. These locking claw members 20, 20 are rotated in the opposite direction as shown by the chain line in FIG. 4 against the spiral spring 22 by the inserting force, and the tip of the male tool is It rushes between the two locking claw members 20, 20. Then, when the recesses 12a, 12a reach the positions corresponding to the hooks 20b, 20b, the locking claw members 20, 20 are returned to the old positions, and the hooks 20b, 20b engage with the recesses 12a, 12a. And this completes the connection. From this connected state, the operating parts 20c, 20c projecting from the openings 23, 23 in the female tool 11 are operated to rotate the locking claw members 20, 20 against the spiral spring 22. Then, by removing the hook portions 20b, 20b from the recesses 12a, 12a, the male tool 12 can be pulled out from the female tool 11.

As described above, when the female tool 11 and the male tool 12 are connected to each other, the male tool 11 is constrained by the pair of locking claw members 20 and 20 from both sides in the cavity 17, which is unexpected. It can be prevented from coming off.

It is needless to say that the female tool 11 and the male tool 12 are provided with hooking tools 25 and 26 for engaging both ends of the continuous yarn.

[0018]

[Effect of the device]

 As is clear from the above description, according to the present invention, the male tool can be inserted into the female tool to perform the connection, and the locking claw member can be separated by rotating the locking claw member by the operation portion. Therefore, the female tool and male tool can be engaged and disengaged with a simple one-touch operation, and even if they are connected, a pair of locking claw members bite into the recesses on both sides of the male tool to prevent them from coming off, which is an expensive ring of this kind. No more accidentally losing jewelry. In addition, since no protrusion is formed on the outer portion, there is no adverse effect such as impairing the aesthetics of the ornament.

[Submission date] October 21, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0002

[Correction method] Change

[Correction content]

[0002] The necklace or pendant other cyclic jewelry, that are usually various clasp made of male and female are used to connect the ends of the connecting yarn of stone chain acids. Figures 5 and 6 show the basic structure of an example, and this clasp consists of female tool 1 and male tool 2. Female tool 1 has a box shape with a cavity 3 inside, and one side is the front. A projecting mouth 4 having a receiving portion 4a on the upper left and right is formed, and the male tool 2 has a width that can be inserted into the cavity 3 from the front of the mouth 4 and has a V-shaped side cross section. The upper piece 5a of the elastic piece 5 formed on the left side is provided with shoulder portions 6 on the left and right sides, and the piece is extended forward in the middle of these shoulder portions with a required width to form an L shape outward and upward. An end plate 8 is formed on the lower piece by forming a pressing piece 7 that is bent at the same time, and at the end of the lower piece 5b of the elastic piece, a concave portion 8a in which the base of the pressing piece 7 is inserted is located in the upper middle. It has a structure that is provided as a right angle. Further, hooking tools 1a and 2a for engaging both ends of the continuous yarn (or chain) 9 are provided at the outer ends of the female and male tools 1 and 2, respectively.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention in which a clasp is separated.

FIG. 2 is a plan view of the female tool.

FIG. 3 is a sectional view of the clasp in a connected state.

FIG. 4 is a sectional view taken along the line AA in FIG.

FIG. 5 is a perspective view of a conventional clasp in a separated state.

FIG. 6 is a partially cutaway perspective view of the clasp of FIG. 5 in a connected state.

FIG. 7 is a perspective view of a clasp having a conventional safety device.

[Explanation of symbols]

 10 Clasps 11 Female Tools 12 Male Tools 12a Recesses 17 Recesses 17 Cavities 18 Mouth Parts 20 Locking Claw Members 20c Operating Parts 22 Vine Winding Springs 24 Curved Curved Surfaces

Claims (1)

[Scope of utility model registration request] 1. A male tool and a female tool into / from which the male tool is inserted / removed, wherein the male tool has recesses formed on both side portions on the distal end side.
The end face of the concave portion is a plate member having a semi-circular curved surface, and the other female member is formed in a box shape with a hollow inside, and the front end of the male member is on the front surface on one end side. A mouth part for inserting and removing the parts is provided, and a pair of locking claw members pivotally supported on both side parts of the male tool to be inserted therein and the locking claw members are inserted therein. And a spring member for urging a spring force in a direction of engaging with the recess of the male tool, the spring member being integrally formed with both locking claw members, and the engaging claw members being recessed against the spring members. A clasp in an accessory, characterized in that an operating portion for manually rotating in a direction to come off from is protruded to the outside at the other end side of the female tool.