阅读说明：本技术 人身装饰品等的卡扣 (Fastener for personal ornaments ) 是由 桥本尚治郎 于 2018-08-30 设计创作，主要内容包括：由一对凹部1与凸部2构成的卡扣,其中,凹部1由保持框体12以及保持框体12围成的保持空间13构成,在保持框体12的前端设置有弹性闭锁的开口部14,并且,在开口部14的外侧设置有插入用引导部15,另一方面,凹部2由环状的卡接框体22与作为卡接框体22围成的空间的卡接接受部25构成,在卡接框体22的前端设置有弹性闭锁的卡接部21,并且,在卡接部21的内侧设置有卡合脱离用引导部23,并且在卡接框体22的外周设置有外壳体57。锁止时,可以通过将凸部2的卡接部21的外侧按压在凹部1的插入用引导部15上而实现锁止；解除时,可以通过使凹部1的开口部14的内侧与凸部2的卡合脱离用引导部23接触,并沿与插入时相反的方向扭转并同时拉拽而解除。(The latch includes a pair of recesses 1 and projections 2, wherein the recess 1 is formed by a holding space 13 surrounded by a holding frame 12 and the holding frame 12, an opening 14 elastically locked is provided at the front end of the holding frame 12, and an insertion guide 15 is provided outside the opening 14, while the recess 2 is formed by an annular latch frame 22 and a latch receiving portion 25 as a space surrounded by the latch frame 22, a latch 21 elastically locked is provided at the front end of the latch frame 22, an engagement/disengagement guide 23 is provided inside the latch 21, and an outer case 57 is provided on the outer periphery of the latch frame 22. At the time of locking, locking can be achieved by pressing the outer side of the click portion 21 of the convex portion 2 against the insertion guide portion 15 of the concave portion 1; when releasing, the inside of the opening 14 of the concave portion 1 is brought into contact with the engagement/disengagement guide portion 23 of the convex portion 2, and the inside is twisted in the direction opposite to the insertion and pulled to release.)

1. A buckle composed of a pair of concave parts and convex parts is characterized in that the convex parts comprise a continuous or discontinuous annular clamping frame body, a clamping receiving part as a space enclosed by the clamping frame body and a clamping part as the front end of the clamping frame body; the concave part is composed of a discontinuous annular holding frame body and a holding space enclosed by the holding frame body, and an opening part for elastic locking is arranged at the front end of the holding frame body; an insertion guide portion is provided outside the opening portion; the length of the opening of the concave part is shorter than the length between the clamping frame body and the clamping frame body of the convex part; an engagement/disengagement port for moving the engagement portion of the projection from the holding space to the outside to release the engagement is provided at the front end of the opening portion or inside the front end of the opening portion; the engaging/disengaging opening is formed by twisting the concave portion and the convex portion in opposite directions and pulling the same to open the opening, thereby achieving engagement/disengagement.

2. The clip according to claim 1, which is a clip comprising a pair of concave portions and convex portions, wherein a pair of engaging portions are provided at a front end of an engaging frame of the convex portion, and an engaging and disengaging guide portion is provided inside the pair of engaging portions. A pair of opening portions that are elastically locked are provided at the front end of the holding frame body of the recess, and an insertion guide portion is provided outside the pair of opening portions.

3. The clip according to claim 1 or 2, which is a clip comprising a pair of concave portions and convex portions, wherein the rear portions of the concave portions are portions connected to the chain-like end portions, and the cross-sectional shape of the holding frame at the rear portions of the concave portions is such that, when the length in the hour hand direction of 12 o 'clock and 6 o' clock is 1, the length in the hour hand direction of 9 o 'clock and 3 o' clock is 2 or less. Alternatively, the rear portion of the holding frame has a cross-sectional shape such that, when the length in the clockwise direction of 9 o 'clock and 3 o' clock is 1, the length in the clockwise direction of 12 o 'clock and 6 o' clock is 2 or less.

4. The clip according to claim 2, which is a clip comprising a pair of concave portions and convex portions, wherein a pair of opening portions are provided at a front end of the holding frame body of the concave portion, insertion guide portions are provided outside the pair of opening portions, and a surface of a front end of one opening portion faces the insertion guide portion of the other opening portion. Alternatively, a surface of a tip of one of the openings of the recess is located in the vicinity of a center line in the longitudinal direction and is not parallel to the center line in the longitudinal direction.

5. The clip according to claim 2 or 4, which is a clip comprising a pair of concave portions and a convex portion, wherein a pair of openings are provided at a front end of a holding frame of the concave portion, and a front end of any one of the openings of the concave portion is directed toward a back side of the concave portion longer than a front end of the other opening.

6. The clip according to claim 2, which is a clip comprising a pair of concave portions and a convex portion, wherein a pair of opening portions are provided at a front end of a holding frame body of the concave portion, an insertion guide portion is provided outside the pair of opening portions of the concave portion, an engagement/disengagement guide portion is provided inside one opening portion, and a surface of a front end of an opening portion of the other concave portion faces a front end of the opening portion of the one concave portion or the insertion guide portion.

7. The clip according to any one of claims 1 to 6, which is a clip comprising a pair of concave and convex portions, wherein the convex portion comprises a discontinuous annular clip frame, a clip receiving portion as a space surrounded by the clip frame, and a clip portion as an elastic lock of a front end portion of the clip frame, and wherein a front end of the clip portion or an inner side of the front end of the clip portion is provided with a clip disengaging opening, and a neck portion is provided at a rear portion of the clip frame. In addition, a guide portion for engaging and disengaging is provided in front of the engagement receiving portion or inside the engagement portion, and an outer shell is formed continuously or discontinuously on the outer periphery of the neck portion.

8. The buckle according to any one of claims 1 to 7, wherein the buckle is formed of a pair of concave portions and convex portions, an opening portion is provided at a front end of a holding frame of the concave portion, and a protrusion is formed at the opening portion toward a center portion of the holding space, and in the engagement maintaining state, a ratchet claw for catching the opening portion of the holding frame of the concave portion to prevent the holding frame from opening is provided inside the buckle frame of the convex portion.

9. The clip according to any one of claims 1 to 8, which is a clip comprising a pair of a concave portion and a convex portion, wherein an opening is provided at a front end of a holding frame of the concave portion, and an internal angle between the holding frame and the opening is 45 degrees or more and 90 degrees or less.

Technical Field

The invention relates to a buckle for personal ornaments such as necklaces, bracelets, anklets, key chains, bags, ornaments, belts, safety belts and the like.

Background

Citation 1 exemplifies a personal ornament buckle as a prior art. In the snap disclosed in reference 1, the convex portion is rotated by about 90 degrees with respect to the longitudinal direction in the disengaged state, and the engagement is released.

Disclosure of Invention

Problems to be solved by the invention

However, the personal ornament buckle of the prior art described above has the following problems. That is, the clip of reference 1 can perform only an opening movement in the vertical direction, and does not have a structure of twisting the opening. Since there is no dedicated engaging and disengaging guide portion or no engaging and disengaging port is provided inside the recess, to release the engagement, it is necessary to press the entire convex portion into the recess by rotating the convex portion 90 degrees with respect to the longitudinal direction. Thus, there are two problems with cited document 1. First, the recess needs to have a size and several gaps that allow the entire protrusion to enter the holding space of the recess, and also a portion that can be pinched by fingers must be ensured. Since the snap receiving portion and the snap frame, which are the tip of the projection, enter the holding space of the recess, the projection must also secure a new portion that can be pinched by a finger. Therefore, the concave portion and the convex portion become considerably long, about 2 times as long as the conventional product. Because gold and platinum products are very expensive, the buckle becomes large and heavy, and the manufacturing cost is high. And, its appearance is also impaired. Secondly, in the operation of rotating 90 degrees, the position pinched by the fingers is positioned on the axis of the circular motion of the convex part. Since the contact position between the opening of the concave portion and the side surface of the convex portion is located outside the shaft, the convex portion further rotates and the engagement cannot be released without being pinched. In many cases, a buckle of a jewelry item such as a necklace is easily slippery because a hand is often coated with cosmetics, hand cream, or the like. In addition, it is often impossible to determine whether or not the neck portion is rotated 90 degrees by the engaging and disengaging operation performed on the back surface of the neck portion.

In other words, first, the catch must be as small as possible. Second, it is required that the clip can be attached or detached without being pinched hard.

In order to simplify the snap operation, it is preferable that the engagement between the concave portion and the convex portion is released by pulling or twisting the concave portion and the convex portion in the axial direction in the same posture as possible.

Means for solving the problem

In order to achieve the above object, the present invention provides a clip comprising a pair of concave and convex portions, wherein the convex portion includes a continuous or discontinuous annular clip frame, a clip receiving portion as a space surrounded by the clip frame, and a clip portion as a front end of the clip frame; the concave part is composed of a discontinuous annular holding frame body and a holding space surrounded by the holding frame body, and an opening part which is elastically sealed is arranged at the front end of the holding frame body; an insertion guide portion is provided outside the opening portion; the length of the opening of the concave part is shorter than the length between the clamping frame body and the clamping frame body of the convex part; an engagement/disengagement port for moving the engagement portion of the projection from the holding space to the outside to release the engagement is provided at the front end of the opening portion or inside the front end of the opening portion; the engaging/disengaging opening is formed by twisting the concave portion and the convex portion in opposite directions and pulling the same to open the opening, thereby achieving engagement/disengagement.

In addition to this clip, in the clip constituted by a pair of concave portions and convex portions, a pair of engaging portions are provided at the front end of the engaging frame of the convex portion, and engaging and disengaging guide portions are provided inside the pair of engaging portions. Preferably, a pair of opening portions that are elastically locked are provided at the front end of the holding frame body of the recess, and an insertion guide portion is provided outside the pair of opening portions.

In the clip comprising a pair of concave and convex portions, the rear portion of the concave portion is a portion connected to the chain end portion, and the cross-sectional shape of the holding frame at the rear portion of the concave portion is such that the length in the hour hand direction of 12 o 'clock and 6 o' clock is 1 and the length in the hour hand direction of 9 o 'clock and 3 o' clock is 2 or less. Alternatively, the rear cross-sectional shape of the holding frame is preferably such that, if the lengths in the hour hand directions of 9 o 'clock and 3 o' clock are 1, the lengths in the hour hand directions of 12 o 'clock and 6 o' clock are within 2.

In the clip constituted by the pair of concave portions and the convex portions, a pair of opening portions are provided at the front end of the holding frame body of the concave portion, insertion guide portions are provided outside the pair of opening portions, and the surface of the front end of one opening portion faces the insertion guide portion of the other opening portion. Alternatively, it is preferable that a surface of a tip of one of the openings of the recess is located in the vicinity of a center line in the long axis direction and is not parallel to the center line in the long axis direction.

In the clip comprising the pair of concave portions and the pair of convex portions, the pair of opening portions are provided at the front end of the holding frame body of the concave portion, and the front end of any one of the opening portions of the concave portion is preferably directed toward the back side of the concave portion longer than the front end of the other opening portion.

In the clip constituted by the pair of concave portions and the convex portions, a pair of opening portions are provided at a front end of the holding frame body of the concave portion, insertion guide portions are provided outside the pair of opening portions of the concave portion, engagement and disengagement guide portions are provided inside one opening portion, and a surface of a front end of an opening portion of the other concave portion preferably faces a front end of an opening portion of the one concave portion or the insertion guide portions.

In addition to this clip, in a clip including a pair of concave and convex portions, the convex portion includes a discontinuous annular clip frame, a clip receiving portion as a space surrounded by the clip frame, and a clip portion as an elastic lock of a front end portion of the clip frame, and an engagement/disengagement port is provided at a front end of the clip portion or inside of the front end of the clip portion, and a neck (tack) portion is provided at a rear portion of the clip frame. Further, a guide portion for engaging and disengaging is provided in front of the engagement receiving portion or inside the engagement portion, and a continuous or discontinuous outer case is preferably formed on an outer periphery of the neck portion.

In the snap comprising a pair of concave and convex portions, an opening is provided at the front end of the holding frame of the concave portion, and a projection is formed toward the center of the holding space in the opening, and in the engagement maintaining state, it is preferable that a ratchet claw for preventing the opening of the holding frame is provided at the inside of the snap frame of the convex portion so as to catch the opening of the holding frame.

In the clip comprising a pair of concave and convex portions, an opening is provided at the front end of the holding frame of the concave portion, and the inner angle between the holding frame and the opening is preferably 45 degrees or more and 90 degrees or less.

Effects of the invention

For example, as in the invention of the seventh embodiment, in a snap in which an insertion guide portion is provided on the outer side of the opening portion of the concave portion, an engagement/disengagement guide portion is provided on the inner side of the snap portion of the convex portion, and an outer housing is provided on the outer periphery of the snap frame of the convex portion, when locking is to be performed, engagement can be achieved by pressing the snap portion of the convex portion into the insertion guide portion of the concave portion while aligning the snap portion; when the engagement is to be released, the engagement can be released by twisting and pulling the concave portion or the convex portion. That is, the present invention can provide a small-sized snap that can be locked or unlocked in a slightly pinched state by providing an engaging/disengaging opening inside a concave portion or a convex portion or providing a guide portion for engaging/disengaging and twisting.

Drawings

Fig. 1 is a part description of a clasp for a personal ornament according to embodiment 1. The length (C) of the engaging portion (21) of the convex portion (2) is shorter than the length (A) of the opening portion (14) of the concave portion (1).

Fig. 2 shows an operation of the buckle for personal ornaments according to the invention of embodiment 1. This is the case when the engagement is attempted to be disengaged by twisting the concave portion (1) or the convex portion (2). However, at this time, the engaging frame (22) of the projection (2) is engaged with the front end of the opening (14) of the recess (1) and cannot be disengaged therefrom.

Fig. 3 is a part illustration of a personal ornament clasp according to a first embodiment of the present invention. The length (B) of the engaging portion (21) of the convex portion (2) is longer than the length (A) of the opening (14) of the concave portion (1).

Fig. 4 is an illustration of a recessed part (1) as a sixth embodiment of the present invention, and a raised part (2) as a fastening part for a personal ornament in a seventh embodiment.

Fig. 5 shows an operation of a personal ornament clasp according to embodiment 1 of the present invention. This is a connection state between the concave portion (1) and the convex portion (2).

Fig. 6 shows an operation of the clasp for a personal ornament according to embodiment 1 of the present invention. This is the case when the protrusion (2) is twisted and the disengagement starts.

Fig. 7 shows an operation of the clasp for a personal ornament according to embodiment 1 of the present invention. This is the case when the engaging frame (22) of the projection (2) presses the holding frame (12) of the recess (1) and the mouth section (14) is closed.

Fig. 8 shows an operation of the clasp for a personal ornament according to the first embodiment of the present invention. This is the case when the concave part (1) and the convex part (2) are separated.

Fig. 9 is a part description of the second, fourth, fifth, and eighth embodiments of the present invention.

Fig. 10 shows the operation of the second embodiment, the fourth embodiment, the fifth embodiment and the eighth embodiment of the present invention. This is the case when the engaging portion (21) of the convex portion (2) is brought into contact with the guide portion (15) of the concave portion (1).

Fig. 11 shows the operation of the second embodiment, the fourth embodiment, the fifth embodiment and the eighth embodiment of the present invention. This is the case when the closing section (14) is expanded by the contact of the engaging section (21) of the projection (2) with the guide section (15) of the recess (1).

Fig. 12 shows the operation of the second embodiment, the fourth embodiment, the fifth embodiment and the eighth embodiment of the present invention. This is the case when the engagement between the concave portion (1) and the convex portion (2) is completed.

Fig. 13 shows the operation of the second embodiment, the fourth embodiment, the fifth embodiment and the eighth embodiment of the present invention. This is the case when the front part or the opening part (17) of the holding space of the concave part (1) contacts with the engaging and disengaging guide part (23) of the convex part (2) and the releasing of the engagement is started.

Fig. 14 shows the operation of the second embodiment, the fourth embodiment, the fifth embodiment and the eighth embodiment of the present invention. This is the case when the engaging and disengaging guide part (23) of the convex part (2) is moved in the direction of the engaging and disengaging port (18) along the front part or the gateway part (17) of the holding space of the concave part (1) by pulling and twisting the convex part (2).

Fig. 15 shows the operation of the second embodiment, the fourth embodiment, the fifth embodiment and the eighth embodiment of the present invention. This is the case when the guide part (23) for engaging and disengaging of the snap-in part (21) is moved to the engaging and disengaging opening (18) by further rotating the protruding part (2).

Fig. 16 shows the operation of the second embodiment, the fourth embodiment, the fifth embodiment and the eighth embodiment of the present invention. This is the case when the engagement/disengagement opening (18) of the recess (1) is opened, and the engagement section (21) moves from the holding space (13) to the outside of the recess (1), and the projection (2) is pulled to the outside to release the engagement.

Fig. 17 is a reference view showing another shape of the clip provided by the present invention.

Detailed Description

(embodiment 1)

The personal ornament clasp according to the first and ninth embodiments of the present invention will be described with reference to the accompanying drawings. The following embodiments are merely examples, and the invention described in the claims is not limited thereto.

In a buckle composed of a pair of a concave part (1) and a convex part (2), when the concave part (1) and the convex part (2) receive the clamping, the outside of a clamping part (21) of the convex part (2) is pressed on an insertion guide part (15) of the concave part (1), or the opening part (14) of the concave part is expanded and opened by twisting while pressing, so that the clamping part (21) of the convex part (2) enters a holding space (13) of the concave part (1) to realize the clamping.

By designing the length (A) of the opening (14) of the recess (1) to be shorter than the distance (B) between the engaging frame and the engaging frame of the projection (2) (see FIG. 3), the opening (14) of the recess (1) is inevitably opened by twisting when the engagement is released. And when the clamping is released, the operation can be easily carried out by only slight force. When the length (C) between the engagement frame body and the engagement frame body of the convex portion (2) is shorter than the length of the opening (14) of the concave portion (1) (C in FIG. 1 is shorter than A), even if the rotation is performed, the engagement frame body (22) of the convex portion (2) is engaged with the opening (14) of the concave portion (1), and the concave portion (1) cannot be opened.

However, when the length (B) between the engagement frame body and the engagement frame body of the projection (2) is longer than the length (a) of the opening (14) of the recess (1) (B is longer than a in fig. 3), the inner side of the engagement portion (21) of the projection (2) moves toward the engagement/disengagement opening (18) along the inner side of the opening (14) of the recess (1) due to twisting. At this time, the latch frame (22) contacts the holding frame (12). The snap is characterized in that the holding frame (12) is pressed to open the opening (14) by further twisting the holding frame (12) or twisting the concave part (1) and the convex part (2) to be almost parallel, and the concave part (1) or the convex part (2) is pulled in the engaging and disengaging direction to release the connection state.

The concave portion in reference 1 is disengaged by rotating the convex portion by 90 degrees and then causing the entire convex portion to enter the concave portion, and therefore, has a long shape having a space and a gap in the longitudinal direction into which the entire convex portion can enter. In the convex portion of the cited document 1, the length in the direction perpendicular to the center line of the major axis must be reduced so as not to lengthen the concave portion. Further, the length of the knob portion needs to be secured so that the projection does not rotate any further. Therefore, the convex portion is also long in the longitudinal axis direction.

Since in the present invention, it is not necessary to make the entire convex portion (2) enter into the concave portion (1), it is possible to make a shape much shorter than that of cited document 1. Since the projection (2) may not have to be rotated by 90 degrees, it is sufficient that the knob portion is of a regular length. That is, even if the shape is similar to that of the present invention, the transverse-longitudinal ratio and the length of the concave portion and the convex portion may be greatly different from each other in the cited document 1. The longer the holding frame (12) of the recess (1), the weaker the locking force of the opening (14) (the locking force is inversely proportional to the length of the holding frame). If the locking force becomes weak, the locking member may be in a dangerous state where the locking member is easily released. Alternatively, the thickness is increased for reinforcement. In the invention, in order to make the buckle small, the length between the clamping frame body and the clamping frame body of the convex part (2) and the length of the opening part (14) of the concave part (1) are defined by comparison. The engaging and disengaging method is also limited to twisting, and the engaging and disengaging port is also limited to the inside of the concave part (1) or the convex part (2).

In the jewelry industry, it is desirable to make the clasp small, rather than requiring a large size clasp. The length of the opening (14) is the length in the direction perpendicular to the long axis center line of the recess (1). The length between the clamping frame body and the clamping frame body of the convex part (2) is the length at the maximum value in the length in the direction vertical to the central line of the long axis of the convex part (2). The insertion guide portion or the engagement/disengagement guide portion is a portion that is not parallel to the longitudinal axis of the concave portion (1) or the convex portion (2) and that guides insertion or engagement/disengagement.

(second embodiment)

In a buckle composed of a pair of concave portions (1) and convex portions (2), a pair of engaging and disengaging guide portions (23) are provided inside a catching portion (21) of the convex portion (2). The tips of the two engaging and disengaging guide sections (23) are gathered near the center line of the major axis of the projection section (2).

One of the recesses (1) is provided with a pair of opening sections (14) that are elastically closed, and a pair of insertion guide sections are provided outside the opening sections (14).

A pair of engaging and disengaging guides (23) of a projection (2) longer than a pair of openings (14) of a recess (1) are provided, thereby making it possible to smoothly disengage the engagement regardless of a right-hand rotation or a left-hand rotation (see FIGS. 14, 15, and 16).

The removal of the necklace was done behind the neck and was therefore not visually confirmed. The twisting operation varies from person to person, and there are persons who are accustomed to rotating to the right and persons who are accustomed to rotating to the left. Therefore, the clamping buckle can be released no matter the button is rotated rightwards or leftwards, and the use is very convenient.

(third embodiment)

A buckle for personal ornaments according to a third embodiment of the present invention is a buckle comprising a pair of a concave portion (1) and a convex portion (2), wherein the cross-sectional shape of the rear portion of a holding frame (12) of the concave portion (1) is such that the vertical length is 1 and the horizontal length is 2 or less. Alternatively, if the left-right length is 1, the up-down length is within 2. Since the opening of the cited document 1 is opened and closed only in the vertical direction, the rear portion near the center line of the major axis has a shape having a large thickness in the vertical direction, but the thickness in the horizontal direction is small, and therefore, when twisted, metal fatigue occurs in the horizontal direction. In other words, since the width of the upper and lower and right and left gateways is made the same by twisting, the same level of strength is required. Therefore, the same thickness is required.

(fourth embodiment)

A buckle for personal ornaments according to a fourth embodiment of the present invention is a buckle comprising a pair of a concave portion (1) and a convex portion (2), and is configured such that the surface of the tip of one opening (14) of the concave portion (1) faces an insertion guide portion (15) outside the other opening (14) or is not parallel to the long-axis center line. The unintentional engagement/disengagement force acts in a direction parallel to the center line in the longitudinal direction. If the surfaces of the engagement/disengagement port (18) are not parallel, the frictional resistance increases, and the structure is hard to accidentally fall off. The tip of the opening (14) is usually formed at an acute angle to prevent unintentional engagement and disengagement, but since a metal such as gold or platinum is very flexible, it is easily deformed during use, resulting in a defective product. However, in the fourth embodiment, the deformation of the member is prevented by forming the distal end portion of the opening (14) into a plane, and the structure is such that the distal end portion is not parallel to the longitudinal center line, whereby the structure can eliminate the accidental disengagement of the engagement.

(fifth embodiment)

A buckle for personal ornaments according to a fifth embodiment of the present invention is a buckle comprising a pair of recesses (1) and projections (2), and a pair of recesses (1) and projections (2), wherein the tip of any one opening (14) of the recesses (1) is longer toward the back side of the recess (1) than the tip of the other opening (14). That is, a step is formed at the front end of the opening (14) and the gate (14) of the recess (1). Since the engaging portion (21) of the projection (2) does not have a chance to stay between the opening (14) and the opening (14), the structure does not come off even if an unexpected engaging/disengaging force is applied.

(sixth embodiment)

The buckle for personal ornaments according to the sixth embodiment of the present invention is a buckle comprising a pair of concave portions (1) and convex portions (2), wherein an inner angle between a holding frame body (12) and a guide portion (19) for engaging and disengaging is an obtuse angle inside one closed portion (14) of the concave portion (1); an inner angle between the holding frame (12) and the front part of the holding space or the inner side (17) of the opening is acute at the inner side of the opening (14) of the other concave part. The tip of the other opening (14) having an acute internal angle is opposed to the tip of the one opening (14) having an obtuse internal angle or the insertion guide (15) on the outer side. Even if an unexpected engaging/disengaging force is applied, the inner side of the engaging portion (21) of the convex portion (2) moves and stops in the direction of the front portion of the holding space or the inner side (17) of the opening portion, the inner angle of which is an acute angle, along the engaging/disengaging guide portion (19), the inner angle of which is an obtuse angle, via the engaging/disengaging opening (18). The engagement/disengagement port (18) is a passage point with a small frictional resistance, and the engagement portion does not stay at this point, so that the engagement is not accidentally disengaged.

(seventh embodiment)

The buckle for personal ornaments according to the seventh embodiment of the present invention is a buckle comprising a pair of concave portions (1) and convex portions (2), wherein the convex portions (2) are formed by a discontinuous annular snap frame (22), a snap receiving portion (25) as a space surrounded by the snap frame (22), and a neck portion (26) as a rear portion of the snap frame (22), an outer case (57) formed continuously or discontinuously is provided on an outer periphery of the neck portion (26) of the convex portions (2), a snap portion (21) elastically locked is provided at a front end portion of the snap frame (22), and a guide portion (23) for snap release is provided inside the snap portion (21). Even if an unexpected engaging/disengaging force is applied, the outer case (57) prevents the opening of the engaging portion (21) of the projection (2) and thus does not come off. When releasing the engagement, since the engaging and disengaging guide portion (23) is provided inside the engaging portion (21) of the convex portion (2), when the engaging portion (21) of the convex portion is pulled in the direction opposite to the direction of engagement and twisted, the engaging portion is expanded to open, and the engaging portion and the disengaging portion are moved in the engaging and disengaging direction, thereby releasing the coupled state.

(eighth embodiment)

In the buckle for personal ornaments according to the eighth embodiment of the present invention, the retaining pawl (14) is a portion in which the inner angle between the holding frame (12) and the opening (14) is greater than 0 degrees and less than 90 degrees.

(ninth embodiment)

The buckle for personal ornaments according to the ninth embodiment of the present invention is a buckle comprising a pair of a concave portion (1) and a convex portion (2), wherein an inner angle between a holding frame body (12) and an opening portion (14) of the concave portion (1) is 45 degrees or more and 90 degrees or less. When the engagement is released, if it is 45 degrees or less, the frictional resistance is large and the operation is not smooth. Since the snap is small and cannot be visually confirmed, it is indispensable to be able to smoothly operate.

The shape of the clip shown in fig. 17 also satisfies the above-described requirements of the present invention, and can produce the same operational effects as described above.

Industrial applicability

As described above, the buckle for personal ornaments according to the embodiment of the present invention can be used as a connecting member for connecting all objects, in addition to the personal ornaments such as the necklace buckle shown in fig. 1.

[ description of reference ]

1 recess 12 holding frame 13 holding space 14 opening or backstop 15 insertion guide

17 a front part of the holding space or an inner side 18 of the opening part, an engaging and disengaging port 19, a concave part

2 the neck of the engaging and disengaging part 26 of the engaging part 22 of the convex part 21 and the engaging and disengaging guide part 25 of the convex part of the engaging frame 23

56 projecting parts, a pair of engaging and disengaging guides, and a rearmost part of 58 projecting parts

Length of opening A B the length between the clamping frame (B is longer than A)

C the length between the clamping frame body and the clamping frame body (C is less than A) D the long axis center line of the concave part or the convex part.