JP3083998B2 - Fasteners for accessories and methods of using the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to fasteners for accessories such as necklaces and bracelets, and more particularly to fasteners for accessories having improved operability and design, and methods of using the fasteners.

[0002]

2. Description of the Related Art Conventional fasteners (so-called clasps) for necklaces such as pearls have a pair of metal parts attached to the end of the necklace, one metal part is attached, and the other metal part is, for example, folded back. An insertion tongue made of a leaf spring is provided, a release knob is provided on a part of the insertion tongue, and a lock receiving portion into which the insertion tongue is inserted and locked is provided on the other metal part. What is provided is known. According to this type, when the necklace is mounted, the insertion tongue piece of the other metal fitting is inserted and locked in the locking receiving portion of one metal fitting, and the two metal fitting parts are connected and fixed. The insertion tongue is released from within the lock receiving portion while releasing the locked state of the insertion tongue with respect to the lock receiving portion by pressing the knob for
What is necessary is just to release the connection fixed state of both metal parts. In this type, both fitting parts do not come off unless the release knob is pushed in, so that the original function of the fastener can be stabilized.

[0003]

However, according to this type, when mounting the necklace, it is possible to continuously fix both metal parts by a simple operation of pressing one metal part against the other metal part. However, when removing the necklace, it is necessary to simultaneously perform two operations of pulling out one metal fitting part from one metal fitting part while pushing in the release knob, making the removal operation of the necklace troublesome Issues.
At this time, if the release knob is designed to be small, the release knob will bite into the finger at the time of operation, and the pushing operation by the finger will be difficult to perform, and the above-mentioned technical problem will become more remarkable. Conversely, if the release knob is designed to be large,
Although the operability is improved to some extent, there is a concern that the operation knob stands out as an external projection of the fastener, which hinders the design of the fastener.

[0004] Such technical problems are not limited to necklaces, but also occur with fasteners of other accessories.

SUMMARY OF THE INVENTION The present invention has been made to solve the above technical problems, and it is intended to simplify the attaching / detaching operability while stabilizing the fastening function of an accessory such as an accessory, and to improve the design. Kind Code: A1 An improved accessory accessory fastener and method of using the same.

[0006]

According to the present invention, FIG.
As shown in FIG. 1 (b), the fastener for attaching and detaching the accessory 1 includes a first part 2 and a second part 3 which are detachable, and as shown in FIG. Is provided with an insertion protruding piece 4 having a non-circular cross-section at least partially protruding in the direction of the second component 3. The second component 3 is provided with an insertion receiving portion 6 into which the insertion protruding piece 4 is inserted, and an insertion receiving portion 6 is provided inside the insertion receiving portion 6. When the projection 4 is inserted, the insertion projection 4 is elastically held, and the elastic holding member 7 that is retracted from the holding position with the rotation of the insertion projection 4 is moved in a direction substantially orthogonal to the insertion direction of the insertion projection 4. The elastic holding member 7 engages with the locking portion 5 when the insertion protrusion 4 is inserted and separates from the insertion protrusion 4 when the insertion protrusion 4 is inserted. A feature is provided in which a locked portion 8 is released in which the engagement with the locking portion 5 is released with the rotation of the insertion protruding piece 4 during removal.

In such technical means, the first component 2 and the second component 3 may be fixedly provided on the accessory 1 or may be provided detachably. In addition, all parts are not limited to those made of metal, and may be made of resin, ceramic, or other materials as long as the connection strength can be maintained.

The insertion projection 4 projects toward the insertion receiving portion 6, and is of a type that fits with the second component 3, and is loosely fitted with the second component 3 and is engaged only with the locking portion. All types are included. Further, the insertion protruding piece 4 needs to have at least a contact portion with the elastic holding member 7 having a non-circular cross section, and when the insertion protruding piece 4 is rotated, the contact with the elastic holding member 7 is required. What is necessary is just to design so that the span of a part and the rotation center of the insertion protrusion 4 may be changed. Preferably,
From the viewpoint of reducing the rotation operation angle of the insertion protruding piece 4 for releasing the locked state, the cross-sectional shape is rectangular or elliptical in which the ratio of the long diameter or the long side to the short diameter or the short side is large. preferable.

Further, a locking portion 5 provided on a part of the insertion protrusion 4 is for engaging the insertion protrusion 4 with the elastic holding member 7. This includes both a convex shape and a concave shape on the surface of the insertion protruding piece 4, and it may be provided at any position of the insertion protruding piece 4, and the number of the installation protruding pieces can lock and release the engaged state. In this case, the number may be one or more. Preferably, the installation position is provided at the shortest distance from the rotation center of the insertion projection 4 from the viewpoint of minimizing the rotation operation angle of the insertion projection 4 for releasing the locking portion 5.

Further, the elastic holding member 7 is provided with the insertion protrusion 4.
Has an elastic function and a holding function to elastically hold the insertion protruding piece 4 while permitting the insertion operation of. This may be a type in which the elastic function and the holding function are separated from each other, or a type in which each function is integrated, and may have any shape as long as the insertion protrusion 4 can be inserted and held. It may be provided at one place or at a plurality of places, and its elastic function includes rubber, spring, and any other members as long as it can be elastically deformed.

The shape of the locked portion 8 is not limited as long as it can lock the locking portion 5. Therefore, if the shape of the locking portion 5 is convex for ensuring the engagement state, a concave shape is desirable, and if the locking portion 5 is concave, a convex shape is desirable.

The surface of the locked portion 8 of the elastic holding member 7 on the side of the insertion projection 4 in the direction of entry, or
Any of the surfaces of the locking portion 5 on the side of entering the elastic holding member 7 is preferably a curved guide surface for guiding the movement of the insertion protruding piece 4 in the entering direction. Preferably, it is better to provide a guide surface in each case.

The method of using the fastener in the above technical means will be described. First, when the accessory 1 is mounted, the insertion protrusion 4 of the first component 2 is inserted into the insertion receiving portion 6 of the second component 3 as shown in FIGS. When the insertion projection 4 comes into contact with the surface of the elastic holding member 7 on the side of the insertion direction of the insertion projection, the elastic holding member 7 is pushed in a direction away from the insertion projection 4, and thus the elastic holding member 7 is pressed.
Retreat. The insertion protruding piece 4 enters the space created by the retreat of the elastic holding member 7, and connects the first and second parts 2, 3 by the engagement of the locking part 5 of the insertion protruding piece 4 and the locked part 8. What is necessary is just to fix it. On the other hand, when the accessory 1 is to be removed, as shown in FIGS. 3A and 3B , when the insertion projection 4 of the first component 2 is rotated, the cross-sectional longitudinal direction of the insertion projection 4 is changed to the second direction. The elastic holding member 7 of the component 3 is pushed in a direction away from the insertion protruding piece 4 to retreat the elastic holding member 7, and the engaged state of the locking portion 5 and the locked portion 8 is released. Then, by pulling out the insertion projection 4 from the insertion reception section 6, the insertion projection 4 of the first component 2 may be detached from the insertion reception section 6.

FIG. 4 shows a reference invention related to the present invention .
As shown in (a) and (b), the fastener for attaching and detaching the accessory 81 includes a detachable first component 82 and a second component 83, and the first component 82 includes a second component 82. Parts 83
Is provided at an end of the insertion protruding piece 84, and a locking portion 85 for connecting and fixing the first component 82 and the second component 83 is provided at the tip of the insertion protruding piece 84.
The insertion receiving portion 86 into which the insertion protrusion 84 is inserted, and the rotation of the insertion protrusion 84 are allowed.
Are engaged in at least the rotation end position, and are locked in the insertion / removal direction with the locked groove 87 that cannot be released. The elasticity that elastically holds the insertion protrusion 84 together with the rotation of the insertion protrusion 84 It is characterized by having a holding member 88.

In such a technical means, when the first part 82 and the second part 83 are connected and fixed, the connecting and fixing surface has a rectangular cross section, a circular cross section, or an elliptical cross section. included.

The insertion projection 84 and the insertion receiving portion 86 may be provided in any number of places. However, from the viewpoint of stabilizing the connection and fixing of the first part 82 and the second part 83, two or more places are provided. Is desirable.

The locking section 85 has an L-shaped, T-shaped, circular, or elliptical vertical cross section, and any shape that can be locked to the locked section.

In the technical means as described above, FIG.
(A) Based on (b), how to use a fastener is demonstrated. First, when wearing accessories, the second part 83
Is inserted into the insertion receiving portion 86 of the first component 82. The first component 82 is attached to the second component 83 by rotating the insertion projection 84 along the locked groove 87 and elastically holding the engagement portion 85 of the insertion projection 84 by the elastic suppressing member 88. What is necessary is just to connect and fix. On the other hand, when removing the accessory, the insertion protrusion 84 of the first component 82 is rotated along the locked groove 87 in the direction opposite to the direction in which the insertion is performed, and the insertion protrusion 84 engages with the locking portion 85 of the insertion protrusion 84. The engagement with the stop groove 87 is released. Then, by pulling out the insertion protrusion 84 from the insertion receiving portion 86, the first component 82 may be detached from the second component 83.

[0019]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. First Embodiment FIG. 5 shows a first embodiment in which the present invention is applied to a fastener for an accessory. FIG. 5 shows, for example, a fastener for a necklace as a jewelry accessory.
It is composed of a plug-in part 20 and a receiving part 30 connected to the main part 34. FIG. 6 is an enlarged view of the fastener part of FIG. The plug-in component 20 has a hollow plug-in component main body 21 having one end opened, and an insertion protruding piece 40 extending toward the receiving component 30 is provided at the open end of the plug-in component main body 21. In the present embodiment, as shown in FIG. 7, the insertion protrusion 40 is joined to the opening end of the plug-in component body 21, and has a cylindrical base 41 and a portion corresponding to the diameter of the cylindrical base 41. And a plate-like portion 42 having a rectangular cross section and having a large ratio of the short side and the long side. Further, a locking portion 43 is provided substantially at the center of the front end of the plate portion 42. The locking portion 43 is composed of a pair of projections formed on the front and back surfaces of the plate-like portion 42, and the distal end side of the insertion protruding piece 40 of the locking portion 43 has a guide surface that spreads elliptically from the distal end. On the other hand, the columnar base 41 side is a plane that is substantially orthogonal to the front and back surfaces of the plate-shaped portion 42.

The receiving part 30 has at least the insertion projection 40.
Has a hollow part 32 in which a hollow portion 32 is inserted and accommodated. A positioning tubular part 33 is provided at the open end of the receiving part main body 31 so that the cylindrical base 41 of the insertion protrusion 40 is positioned and fitted. The elastic holding member 50 is disposed inside the receiving component body 31. In the present embodiment, the elastic holding member 50 is provided in a pair with the insertion position of the plate portion 42 of the insertion protrusion 40 interposed therebetween.
2, a holding member 51 capable of abutting on the front and back surfaces, a spring member 52 for urging the holding member 51 toward the front and back surfaces of the plate-shaped portion 42, and a holding member 51 The guide member 53 controls the direction of movement. Locked portion 54 of holding member 51
Among them, the approaching side of the insertion protrusion 40 has a curved surface for guiding the insertion protrusion 40. On the other hand, the side opposite to the approach direction of the insertion protrusion 40 is a flat surface. Guide member 5
Numeral 3 is set so that the holding member 51 is directed to the center of the cross section of the hollow portion 32, and is provided so that advance and retreat are in one direction. In addition, the insertion component main body 21 and the receiving component main body 31
Connecting rings 22 and 34 are connected to the connecting ends of
Are formed.

Next, referring to FIGS. 6, 8, and 9, a method of using the fastener of the accessory according to the present embodiment will be described.
When the insertion component 20 is mounted on the receiving component 30, the insertion projection 40 of the insertion component 20 may be inserted into the hollow portion 32 of the receiving component 30. At this time, as shown in FIG. 8, the plate-like portion 42 that has entered the receiving part 30 pushes the holding member 51 outward, retreats the spring member 52 in the reverse direction, and advances while securing the entry space. . The projecting locking portion 43 at the tip of the plate-like portion 42 is
0, the spring member 52 naturally returns in the forward direction, the locked portion 54 of the holding member 51 comes to be caught by the locking portion 43, and the insertion component 2
0 and the receiving part 30 are engaged. As a result, even when an external force acts on the insertion component 20 or the like, it does not easily come off. On the other hand, when the insertion component 20 is to be separated from the receiving component 30, the insertion component 20 may be rotated by a predetermined angle and pulled out from the receiving component 30 as shown in FIG. 9. At this time, by rotating the plate-shaped portion 42 and pushing the holding member 51, the spring member 52 is retracted in the reverse direction, the engagement state of the locking portion 43 is released, and the detachment space of the locking portion 43 is secured. I do. By pulling out the insertion protrusion 40, the insertion component 20 is separated from the receiving component 30. In addition, according to the present embodiment, various designs are freely provided on the outer peripheral surfaces of the plug-in component main body 21 and the receiving component main body 31 without the connecting portion being visible to the outside. Also, since there is no need to provide a release knob outside, there is no noticeable external protrusion. Therefore, the design of not only accessories such as necklaces but also the fasteners themselves is improved.

FIG. 10 is an application example of the first embodiment shown in FIG. This application example is different from the first embodiment shown in FIG.
Is characterized by having a substantially square cross section and a locking portion 43 provided at the center of each side. Normally, when a pair of locking portions 43 is provided in the first embodiment shown in FIG. 5, the insertion direction in which locking portion 43 can be engaged is two directions.
On the other hand, according to this application example, since the locking portions are set at four locations, the insertion direction of the protruding pieces 40 is further increased in two directions, and the insertion of the insertion component 20 into the receiving component 30 becomes easy. .

Second Embodiment FIG. 12 shows a second embodiment of a fastener for an accessory. The basic configuration of the second embodiment is almost the same as that of the first embodiment shown in FIG. 2, but the configuration of the receiving component 30 is different from that of the first embodiment. That is, the receiving component 30 includes a receiving component main body 31 provided with a hollow portion 32 having an open end, and a locking and holding member 60 that is fitted and fixed in the opening 35 of the receiving component main body 31. In the present embodiment, as shown in FIGS. 12, 13 (a) and 13 (b), the locking / holding member 60 is formed of a plate spring which is integrally formed in advance, and the opening portion 35 of the receiving component body 31 is closed. A partition wall portion 61 to be closed, a cylindrical portion 62 formed substantially at the center of the partition wall portion 61 and fitted with the columnar base portion 41 of the insertion protrusion 40 of the insertion component 20;
The partition wall 61 includes a pair of elastic leg pieces 63 and 64 that project from both ends in the vertical direction in the drawing toward the inside of the hollow portion 32 of the receiving component main body 31 and whose distal ends are gradually arranged closer to each other. A gap 65 is formed between the elastic leg pieces 63 and 64, and the distal ends of the elastic leg pieces 63 and 64 are respectively locked parts 66. Next, an operation method according to the second embodiment will be described. First, when connecting the insertion component 20 and the receiving component 30, FIGS.
As shown in FIG. 4, the insertion protrusion 40 of the insertion component 20 may be inserted into the cylindrical portion 62 of the locking and holding member 60. At this time,
When inserted into the hollow part 32 of the receiving part 30, the insertion part 20
The plate-like portion 42 of the insertion protruding piece 40 abuts against the elastic leg pieces 63 and 64, is pushed in a direction away from the plate-like portion 42 of the insertion protruding piece 40, and is elastically deformed in the same direction. An entry space for the piece 40 is secured. When the locking portion 43 of the insertion component 20 passes over the locked portion 66 through the gap 65 between the elastic leg portions 63 and 64, the elastic leg portions 63 and 64 naturally return in the direction approaching the insertion protrusion 40. Then, the locking portion 43 is engaged with the locked portion 66, and the insertion component 20 and the receiving component 30 are connected and fixed. On the other hand, when the insertion component 20 is separated from the receiving component 30, as shown in FIGS.
0 of the elastic leg piece 6
3 and 64 are deflected to the side separated from each other, and the engagement state of the locking portion 43 and the locked portion 66 is released.
By withdrawing the insertion protruding piece 40 from the locking holding member 60 while securing the detaching space of the locking portion 43,
The insertion component 20 is detached from the receiving component 30.

FIG. 16 is an explanatory diagram showing a modification of the second embodiment. The basic configuration of this modification is similar to that of the second embodiment shown in FIG. 12, but the locking and holding member 60 itself does not form the partition wall 61 and the cylindrical portion 62 shown in FIG. A contact portion 67 is provided on the insertion component 20 side of the component main body 31, and the locking and holding member 60 is fixed inside the receiving component main body 31 of the contact portion 67. According to this, the locking holding member 60 and the receiving component main body 31 are
Since it is supported on the seven side surfaces, even when an excessive tensile stress is applied, it is less likely to be broken as compared with the second embodiment in which only the partition wall 61 shown in FIG. 12 is used.

FIG. 17 shows an application example in which the design is applied to the second embodiment shown in FIG. This application example includes ring parts 22 and 34 for the purpose of connection, a plug-in part 20 corresponding to the tail of the fish, and a receiving part 30 corresponding to the body of the fish. In this example, since the insertion protruding piece 40 and the locking holding member 60 do not appear to the outside, even if design processing is performed on the outside of the insertion component 20 and the receiving component 30, there is nothing that hinders the design, and The present invention can also be applied to a case where the embedded part 20 and the receiving part 30 are asymmetric, which is advantageous from the viewpoint of improvement of designability and freedom of design.

FIG. 18 shows the locking portion and the locked portion of the first embodiment shown in FIG. FIG.
(A) shows the engagement state of the first embodiment, in which the surface of the locking portion 43 on the base side of the plate portion 42 is perpendicular to the side surface of the plate portion 42. Locked part 5 that comes into contact with
4 is provided so as to fit with the locking portion 43. On the other hand, when the emergency evacuation is performed, as shown in FIG. 18 (b), the angle between the surface of the locking portion 43 on the base side of the plate portion 42 and the side surface of the plate portion 42 is made acute, and The stop portion 54 is characterized in that the tip portion is cut out so as to fit on this surface. Thereby, for example, in a situation where the necklace is erroneously pulled in the crowd, when an excessive pulling force is applied to the plate-shaped portion 42, the plate-shaped portion 42 and the holding member 51 can be detached without being destroyed. It is something to do. FIGS. 19A and 19B show the same emergency evacuation in the second embodiment.

Third Embodiment FIG. 20 shows a third embodiment in which the reference invention related to the present invention is applied to a fastener for an accessory. FIG. 20 shows a fastener for a necklace as an accessory, for example, which is composed of a plug-in part 820 connected to a connecting ring and a receiving part 830. FIG. 21 is a sectional view of the fastener.
The plug-in component 820 has a hollow plug-in component main body 821 having one end opened, and an insertion protruding piece 840 extending toward the receiving component 830 is provided at the open end of the plug-in component main body 821. In the present embodiment, the insertion protruding piece 840 is fixed to the opening end of the plug-in component main body 821, has a rectangular cross section, and has a pair. Further, the distal end of the insertion protruding piece 840 is provided with a locking portion 850 having an L-shaped cross section.

The receiving part 830 includes at least the insertion projection 8.
The receiving part main body 831 has a hollow part 832 in which the insertion part 40 is inserted and accommodated. At the opening end of the receiving part main body 831, an insertion receiving part 860 and a locked groove 870 are provided. An elastic restraining member 880 is provided at a portion on the inner side that contacts the locking portion along the locked groove 870.

Next, a method of using the fastener of the accessory according to the present embodiment will be described with reference to FIGS. When the insertion component 820 is mounted on the receiving component 830, the insertion component 82 is inserted into the insertion receiving portion 860 of the receiving component 830.
What is necessary is just to insert the zero insertion protruding piece 840 and rotate the insertion component 820 in a predetermined direction. At this time, the receiving part 83
The insertion protruding pieces 840 inserted into the insertion receiving portion 860 are fitted with each other. When this insertion protruding piece 840 is rotated along the locked groove 870, the locking part 850 of the insertion protruding piece 840 is elastically held by the elastic suppressing member 880, so that the receiving part 830 is provided.
Is engaged with the insertion part 820. On the other hand, receiving part 830
When the insertion part 820 is detached from the
May be rotated in the direction opposite to the direction of mounting, and the insertion protruding piece 840 may be pulled out from the insertion receiving portion 860 of the receiving component 830.
At this time, by rotating the insertion protruding piece 840 of the insertion component 820 in the predetermined direction along the locked groove 870, the elastic holding of the elastic suppressing member 880 is released and the locking portion 850 of the insertion protruding piece 840 is released. Is disengaged from the locked groove 870. Then, the insertion protrusion 840 is inserted from the insertion receiving portion 830.
Is pulled out from the receiving part 830 to insert the insertion part 8
20 is removed. In the present embodiment, complicated operations
Push operation, rotation, and
You can attach and detach accessories just by turning and pulling.
The operation of attaching and detaching accessories can be greatly simplified.
You.

FIGS. 23, 24, and 25 show examples in which the insertion part 820 and the receiving part 830 of the third embodiment have circular cross sections, and the locking parts 850 are attached outward from the center of the circle. In this modification, the same effect as in the third embodiment can be obtained.

FIGS. 26 and 27 show an example in which three insertion projections 840 are provided on the surface of the insertion component 820 of the third embodiment facing the receiving component 830. This increases the number of insertions, facilitates insertion of insertion part 820 into receiving part 830, and further enhances and stabilizes the engagement state.

[0032]

As described above, according to the present invention, the detachment point can be set by pushing and turning without using the release knob serving as an external projection on the fastener of the accessory. Since the accessory can be attached and detached only by pushing, rotating, and pulling operations on the same straight line without performing the complicated operation of searching, the attaching / detaching operation of the accessory can be extremely simplified. On the other hand, at the time of disengagement, not only the pulling operation but also the rotating operation are required, so that the present invention is also useful in stabilizing the fastening function. In addition, the present invention is to improve the design of a fastener for an accessory. That is, since there is no release knob, when the clasp itself is designed, there is no noticeable external protrusion, and there is no obstacle in design even when applied to the front type clasp. Further, there is an advantage that a special design can be applied not only to the front side but also to the back side of the clasp.

[Brief description of the drawings]

FIGS. 1 (a) and 1 (b) show the configuration of a fastener according to the present invention .

FIGS. 2A and 2B are explanatory diagrams showing a method of using the present invention.

FIGS. 3A and 3B are explanatory diagrams showing a method of using the present invention.

FIGS. 4A and 4B show the configuration of a fastener according to a reference invention related to the present invention .

FIG. 5 is an explanatory diagram showing a first embodiment in which the present invention is applied to an accessory.

FIG. 6 is an explanatory view showing an enlarged view of the first embodiment in which the present invention is applied to an accessory.

FIG. 7 is an enlarged three-dimensional view of the insertion protrusion according to the first embodiment.

FIG. 8 is an explanatory diagram illustrating a method of using the embodiment according to FIG. 5;

FIG. 9 is an explanatory diagram showing a method of using the embodiment according to FIG. 5;

FIG. 10 is an explanatory diagram showing an application example of the embodiment shown in FIG. 5;

FIG. 11 is an explanatory diagram showing a method of using the application example shown in FIG. 5;

FIG. 12 is an explanatory diagram showing Embodiment 2 of the present invention .

13A and 13B show the second embodiment shown in FIG.
It is explanatory drawing of the elastic holding member.

FIG. 14 is an explanatory diagram showing a method of using the second embodiment shown in FIG.

FIG. 15 is an explanatory diagram showing a method of using the second embodiment shown in FIG.

FIG. 16 is an explanatory diagram showing a modification of the second embodiment shown in FIG. 12;

FIG. 17 is an explanatory diagram of an example in which a design is applied to the second embodiment shown in FIG. 12;

18 (a) and (b) are explanatory views showing an example in which an emergency evacuation device is applied to the first embodiment shown in FIG.

19 (a) and (b) show Embodiment 2 shown in FIG.
It is an explanatory view showing an example in which an emergency evacuation was devised.

FIG. 20 is an explanatory view showing a third embodiment in which the reference invention related to the present invention is applied to an accessory.

FIG. 21 is an explanatory diagram showing a cross-sectional view of the third embodiment shown in FIG. 20;

FIG. 22 is an explanatory view showing a connection surface according to the third embodiment shown in FIG. 20;

FIG. 23 is a diagram showing a modification of the third embodiment shown in FIG. 20;

FIG. 24 is an explanatory diagram showing a cross-sectional view of the modification shown in FIG. 23;

FIG. 25 is an explanatory diagram showing a connection surface of the modification shown in FIG. 23;

FIG. 26 is an explanatory diagram showing a modification of the third embodiment shown in FIG. 20;

FIG. 27 is an explanatory view showing a connecting surface of the modification shown in FIG. 26;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... jewelry, 2 ... 1st part, 3 ... 2nd part, 4 ... insertion protrusion, 5 ... locking part, 6 ... insertion receiving part, 7 ... elastic holding member, 8 ... locked part, 10 ... jewelry, 81 ... jewelry, 82
… The first part, 83… the second part, 84… the insertion protruding piece, 8
5: locking portion, 86: insertion receiving portion, 87: locked groove

Claims (2)

(57) [Claims] 1. A fastener for attaching and detaching an accessory (1), comprising: a first part (2) and a second part (3) which are detachable, and the first part (2) has a second part. An insertion protruding piece (4) projecting in the direction of the component (3) and having at least a part having a non-circular cross-section is provided. The second part (3) is provided with an insertion receiving part (6) into which the insertion protruding piece (4) is inserted, while forming a locking part (5) that can be engaged and disengaged with the second part (3). Inside the insertion receiving portion (6), when the insertion protrusion (4) is inserted, the insertion protrusion (4) is elastically held, and retreats from the holding position with the rotation of the insertion protrusion (4). The elastic holding member (7) is provided so as to be able to advance and retreat in a direction substantially perpendicular to the insertion direction of the insertion protruding piece (4). Engagement with the locking portion (5) when the projection (4) is inserted and engagement with the locking portion (5) with rotation of the insertion projection (4) when detaching the insertion projection (4). A fastener for an accessory, comprising a locked part (8) for releasing the lock. 2. When using the fastener according to claim 1, when attaching the accessory (1), the first component (2) is inserted into the insertion receiving portion (6) of the second component (3). Insert the insertion piece (4) and insert this insertion piece (4).
By pressing the elastic holding member (7) with the above, the elastic holding member (7) is retracted in a direction away from the insertion protruding piece (4), and the insertion protruding piece (4) is advanced into the space created by the retreat, and elastically held The first and second parts (2, 3) are connected and fixed by locking the locking portion (5) of the insertion protruding piece (4) to the locked portion (8) of the member (7). When removing (1), the insertion protrusion (4) of the first component (2) is rotated to retreat the elastic holding member (7) of the second component (3), and the locking portion ( 5) Disengagement of the locked part (8) from the locked part (8), and by pulling out the insertion protruding piece (4), the insertion protruding piece (4) of the first component is disengaged from the insertion receiving part (6). A method of using a fastener for a jewelry as described above.