JPH0810016A - Decorative clasp - Google Patents

Abstract

PURPOSE:To provide a decorative clasp capable of preventing the dropping out of accessories installed to a chain. CONSTITUTION:This decorative clasp is formed of a surface lid member 1 having a first hinge part 1a on one end and a locking part lb and a second hinge part 1c on the other end, a back lid member 2 one end of which is rotatably hinged to the first hinge part 1a of the surface lid member 1, the back lid member 2 having a push-in part 2a capable of being elastically pushed into the locking part 1b of the surface lid member 1 on the other end part and a projection part 2b on the outside surface between the hinged end part and the push-in part 2a, and a fastening lid member 3 one end of which is rotatably hinged to the second hinge part 1c of the surface lid member 1, the fastening lid member 3 having a through-hole 3a capable of elastically fitting the projection part 2b of the back lid member 2 with the other end. A first fastening means is formed between the locking part 1b of the surface lid member 1 and the push-in part 2a of the back lid member 2, and a second fastening member is formed between the projection part 2b of the back lid member 2 and the through hole 3a of the stopping lid member 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative clasp in which a pendant top or other accessory is detachably attached to a chain, rope, beads, etc., and in particular, an accessory once attached to the chain, rope, beads etc. The present invention relates to a decorative clasp capable of reliably preventing the chain from falling off.

[0002]

2. Description of the Related Art FIG. 6 shows an example of the simplest ornamental clasp on which a pendant top or other accessory is detachably attached to a chain, rope, beads, or the like. The clasp shown in the drawing includes a front cover member 11 and a retaining cover member 13 located on the back side of this member. The front lid member 11 has a spherical dowel 11a provided at one end and a hinge portion 11b at the other end. Reference numeral 11c is a through hole for attaching a pendant top or other accessory through an appropriate connecting member (not shown). One end of the retaining cover member 13 is pivotally attached to the hinge portion 11b of the front cover member 11 and has a through hole 13a into which the dowel 11a of the front cover member 11 can be elastically fitted.
In order to attach a clasp, to which accessories such as a pendant top are attached via the through holes 11c, to the chain, rope, beads, etc. After that, the fastening lid member 13 may be rotated around the hinge portion 11b of the front lid member 11 as an axis to insert the dowel 11a of the front lid member 11 into the through hole 13a.

[0003]

By the way, in the above-mentioned conventional decorative clasp, a closed ring is formed by the fastening means formed by the dowel 11a of the front lid member 11 and the through hole 13a of the fastening lid member 13 to form a pendant. An accessory such as a top can be attached to the chain 14 so as not to drop.
However, there is a possibility that the fastening means may be unintentionally disengaged for some reason and the accessory may drop out together with the clasp. The decorative clasp of the present invention enables accessory parts such as a pendant top to be detachably attached to a chain,
An object of the present invention is to provide a clasp that has a double fastening means and reliably prevents the clasp from falling off together with the accessory.

[0004]

In order to achieve the above object, a decorative clasp according to the present invention has a first hinge portion at one end and a locking portion and a second hinge portion at the other end. A front cover member, and one end having a push-fitting portion capable of being rotatably hinged to the first hinge portion of the front cover member and the other end elastically pushable into a locking portion of the front cover member, And a back cover member having a protrusion on the outer surface between the hinged end and the push-in portion, and one end rotatably hinged to the second hinge part of the front cover member and the other end. Between the engaging portion of the front lid member and the pushing-in portion of the back lid member. And a second opening between the projection of the back lid member and the through hole of the fastening lid member.
It is a decorative clasp that has fastening means. In this clasp, the back cover member is rotated about the first hinge portion of the front cover member to be positioned on the back side of the front cover member, and the push-in portion of the back cover member is inserted into the front cover member. It is pushed into the locking portion of the member, and the first fastening means forms a closed ring composed of the front lid member and the back lid member, and the fastening lid member is provided with the second hinge portion of the front lid member. Is rotated about the axis to be positioned outside the back cover member, the projection of the back cover member is fitted into the through hole of the fastening cover member, and the second fastening means is used to attach the front lid member and the back side. The opening of the closed ring composed of the lid member is prevented.

The first fastening means of the decorative clasp is formed on the concave curved surface formed on the inner surface of the engaging portion of the front lid member and on the outer surface of the pushing portion of the back lid member. It can be formed from a concave curved surface of the lid member and a convex curved surface that can be engaged.

Further, the second fastening means may be formed by a bulge provided on the outer surface of the back lid member and a through hole formed in the fastening lid member into which the dowel can be fitted. it can.

In a preferred mode, the second cover member
Can be provided on the outer surface on the back side of the locking portion of the front cover member.

The ornamental clasp can hold an object to be grasped by a closed ring composed of the front lid member and the back lid member, and further has a tip portion provided by extending a pushing portion of the back lid member. It is also possible to hold the object to be held.

[0009]

The decorative clasp of the present invention is formed by the engaging portion of the front lid member and the pushing portion of the back lid member.
And a second fastening means formed by the projection of the back lid member and the through hole of the fastening lid member. Therefore, the ring closure formed by the front cover member and the back cover member is first prevented from opening by the first fastening means and further blocked by the second fastening means by overlapping, so that the ring closure is performed. It is possible to reliably prevent the object to be grasped, such as the broken chain, from dropping due to ring opening. Also, the desorption between this chain and the clasp is extremely easy.

[0010]

EXAMPLES Examples of the decorative clasp of the present invention,
A detailed description will be given below with reference to FIGS. 1 to 4. This ornamental clasp is composed of a front lid member 1, a back lid member 2 and a fastening lid member 3 which are located in order from the front to the back, as shown in FIG. ing. The front cover member 1 has a substantially U-shaped cross section, has a first hinge portion 1a at one end of the U-shape, and has a locking portion 1b and a second hinge portion 1c at the other end. The locking portion 1b provided at the other end of the U-shape has a concave curved surface on the inside. Second
The hinge part 1c is provided on the outer surface on the back side of the locking part 1b. The through hole 1d provided at the other end of the front cover member 1 is
It is for attaching a pendant top and other accessories through an appropriate connecting member (not shown).

The back cover member 2 has one end rotatably hinged to the first hinge portion 1a of the front cover member 1, and the other end of the back cover member 2 capable of being pushed into the locking portion 1b of the front cover member 1. Have. The outside of the push-in portion 2a forms a convex curved surface, and elastically engages with the locking portion 1b of the front cover member 1. That is, since the decorative clasp is usually made of a thin plate of metal such as gold, platinum, silver, copper, etc., or an alloy thereof, it has elasticity and can be elastically engaged with each other if each member is given an appropriate shape. It is possible to Thus, the locking portion 1b of the front cover member 1 and the back cover member 2
And the push-in portion 2a of the front cover member 1 forms a first fastening means, and as shown in FIG. 3, the back cover member 2 is rotated about the first hinge portion 1a of the front cover member 1 as an axis and the back side of the front cover member 1 is rotated. The press-fitting part 2
When a is elastically pushed into the locking portion 1b, a closed ring composed of the front cover member 1 and the back cover member 2 is formed. This ring closure will not open unless a certain amount of force acts on the member. Therefore, the object to be grasped, such as the chain, rope, or beads, which is grasped during the closing of the ring, does not come off from the clasp. A spherical dowel 2b is provided on the outer surface of the back cover member 2 between the hinged portion and the push-in portion 2a.

As is apparent from FIG. 1, one end of the retaining lid member 3 is rotatably hinged to the second hinge portion 1c of the front lid member 1 and the other end of the back lid member 2 is rotatably attached. It has a through hole 3a into which the pocket 2b can be fitted. The through hole 3a includes a portion 3a1 having a lateral width in which the dowel 2b of the back cover member 2 can be elastically fitted. Thus, the dowel 2b of the back lid member 2 and the retaining lid member 3
The through hole 3a forms a second fastening means, and the fastening lid member 3 is rotated about the second hinge portion 1c of the front lid member 1 as shown in FIG. When the dowel 2b of the back cover member 2 is elastically fitted into the through hole 3a, this engagement cannot be released unless a certain amount of force acts on the member. Therefore, the ring-opening of the closed ring formed of the front cover member 1 and the back cover member 2 can be further overlapped and prevented.

As described above, the decorative clasp of the present invention has the engaging portion 1b of the front lid member 1 and the pushing-in portion 2a of the back lid member 2.
And a second fastening means formed from the dowel 2b of the back lid member 2 and the through hole 3a of the fastening lid member 3. Therefore, the ring closure formed by the front cover member 1 and the back cover member 2 is first blocked by the first fastening means, and then further blocked by the second fastening means. Thus, the object to be grasped 4 such as the chain that is grasped is prevented from coming off due to ring opening.

The decorative clasp of the present invention comprises chains, ropes,
It is suitable as a clasp for securely attaching accessories such as pendant tops without opening them to various ornaments that form a closed ring as a whole, such as beads, and can be easily attached to and detached from chains. Is.

Further, if the outer shape of the portion to be grasped of the object to be grasped, such as a chain, is formed so as to conform to the inner shape of the closed ring formed by the front lid member and the back lid member, the desired portion to be grasped is formed. The object to be grasped can be grasped. Further, as shown in FIG. 5, if the push-in portion 2a of the back cover member 2 is extended so that the tip 2a1 holds the grasped portion of the grasped object 4, the grasped portion of the grasped object 4 is held. Is first fitted into the inner surface of the push-in portion 2a of the back cover member 2, and then the back cover member 2 in this state.
The push-in portion 2a can be pushed into the locking portion 1b of the front cover member 1 by rotating. As a result, even an object to be grasped such as an extremely small chain can be easily attached to the clasp.

[Brief description of drawings]

FIG. 1 is a front view of a state in which a back lid member of an embodiment of a decorative clasp according to the present invention is rotated and closed.

FIG. 2 is a side view of the decorative clasp shown in FIG. 1 in a ring-opened state.

3 is a side view of the decorative clasp shown in FIG. 1. FIG.

FIG. 4 is a side view showing a state in which the retaining lid member of the decorative clasp shown in FIG. 1 is rotated.

FIG. 5 is a side view of a modified state of the back cover member of the modified example of the decorative clasp shown in FIG.

FIG. 6 is a side view showing a state in which a decorative clasp according to a conventional example is opened and closed.

[Explanation of symbols]

1 ... Front cover member, 1a ... 1st hinge part, 1b ... Locking part, 1
c ... second hinge part, 2 ... back cover member, 2a ... push-in part, 2b
... Dowel (projection part), 3 ... Fastening lid member, 3a ... Through hole.

Claims (6)

[Claims] 1. A front cover member having a first hinge portion at one end and a locking portion and a second hinge portion at the other end; and one end pivoting to a first hinge portion of the front cover member. A hinged portion that can be hinged and has a push-in portion at the other end that can be elastically pushed into the locking portion of the front cover member, and a protrusion on the outer surface between the hinged end portion and the push-in portion. And a through hole into which a projection of the back lid member can be elastically fitted between the other end of the back lid member and the other end of the front lid member. Forming a first fastening means between the engaging portion of the front lid member and the pushing-in portion of the back lid member, and the projection of the back lid member and the fastening lid. A decorative clasp having a second fastening means formed between the member and a through hole, wherein the back cover member is rotated about the first hinge portion of the front cover member as an axis. The back cover member that is located on the back side The push-in portion is pushed into the locking portion of the front lid member, and the first fastening means forms a closed ring composed of the front lid member and the back lid member, and the fastening lid member is attached to the front lid. The second hinge portion of the member is rotated around the second hinge portion as an axis to be positioned outside the back lid member, and the projection of the back lid member is fitted into the through hole of the fastening lid member, and the second fastening means is used. A decorative clasp, characterized in that the ring closure composed of the front cover member and the back cover member is prevented from opening. 2. The first fastening means is formed on a concave curved surface formed on an inner surface of a locking portion of the front lid member and on an outer surface of a push-in portion of the back lid member. The decorative clasp according to claim 1, wherein the clasp is formed from a concave curved surface and a convex curved surface that can be engaged. 3. The second fastening means is formed by a burd protrudingly provided on an outer surface of the back lid member and a through hole formed in the fastening lid member into which the dowel can be fitted. The decorative clasp according to claim 1, which is characterized in that 4. The decorative clasp according to claim 1, wherein the second hinge portion of the front cover member is provided on the outer surface on the back side of the locking portion of the front cover member. 5. The decorative clasp according to claim 1, wherein an object to be grasped is grasped by a closed ring composed of the front lid member and the back lid member. 6. The decorative clasp according to claim 5, wherein the push-in portion of the back cover member has an extended tip portion, which allows an object to be grasped to be held.