JP2019213694A - Clasp - Google Patents

Abstract

To provide a clasp that connects by a user inserting an insertion member into a housing and that can be easily manufactured as well as having a novel design.SOLUTION: The clasp 100 is composed of: an insertion member 10 that is provided in the end part 30a on one end of an ornamental chain-like member 30; and a housing 20 that stops, by an adsorbing or restraining mechanism, the insertion member provided in the end part 30b on the other end by means of a magnetic induction member having a magnetic force. The housing is equipped with a first frame 21 and a second frame 22 that open through a spindle 20a and, in one or both of the first and the second frames, there is a space made in which a jewel or the like can be inlaid. Also, with a transparent glass part set in so as to cover the space, the jewel or the like inside the space is made visibly enjoyable through the glass part.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a clasp used for decorative articles and the like.

  As a clasp used for an annular accessory such as a necklace or a bracelet, there is known a configuration in which an insertion member and an openable / closable housing are provided, and the insertion member is inserted into the housing and connected. For example, Patent Literature 1 below discloses a housing provided at an end on one end side of a decorative member, and a housing provided at an end on the other end side to attract and fasten the insertion member by a magnetic induction member having a magnetic force. Are disclosed. Patent Document 2 below discloses a clasp including a plug member provided at one end of the decorative member, and a housing provided at the other end of the decorative member and holding the plug member by a locking mechanism. It has been disclosed.

Japanese Patent No. 4838911 JP 2000-316616 A

  The casing of the clasp having the above-described configuration forms a part of the external design of the ring-shaped accessory when the user wears and uses the ring-shaped accessory. Therefore, a casing of such a clasp is always required to have a novel design. On the other hand, the housing of the conventional clasp is often made of metal from the viewpoint of its material cost, workability, durability and the like. As a result, the housings of the conventional clasps often have similar designs, and the design versatility was poor.

  The present invention has been made in view of the above circumstances, and provides a clasp in which a user inserts a plug member into a housing and connects the clasp, which can be easily manufactured and has a novel design. The purpose is to do.

  In the present invention, the insertion member provided at one end of the decorative chain member and the insertion member provided at the other end of the decorative chain member are attracted by a magnetic induction member having magnetic force, or by a locking mechanism. A clasp comprising: a first frame and a second frame that are opened through a support shaft; and the one of the first frame and the second frame; Both sides create a space that can hold jewelry, etc., and a transparent glass part is fitted so as to cover the space so that jewelry, etc. in the space can be enjoyed with the eyes through the glass part. And

  In the present invention, the glass part is a transparent organic glass, and may be acrylic or plastic. Further, the glass portion may have a convex surface that makes the jewels and the like inside look large. In addition, an operation part for removing with a finger may be provided on one or both of the first frame and the second frame frame, and a hemispherical part may be provided on the operation part.

  According to the present invention, it is possible to provide a clasp that can be easily manufactured and has a novel design.

It is a side view showing an example of a clasp concerning an embodiment. FIG. 2 is an exploded perspective view showing a main part of the clasp of FIG. 1. 2A and 2B show a housing of the clasp of FIG. 1, wherein FIG. 1A is a perspective view and FIG. It is a figure explaining that an observer enjoys a clasp with eyes. It is a side view which shows a modification.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the present invention is not limited to the embodiments described below. Further, in the drawings, in order to explain the embodiments, the drawings are schematically illustrated, and the scale is appropriately changed, for example, with some portions being enlarged or emphasized. In each of the drawings except FIG. 4, the directions in the drawings will be described using an XYZ coordinate system. In the XYZ coordinate system, a direction parallel to the direction in which the insertion member 10 is inserted in the housing 20 is referred to as an X direction, and a direction parallel to the support shaft 20a is referred to as a Z direction. A direction orthogonal to both the X direction and the Z direction is referred to as a Y direction. In each of the X direction, the Y direction, and the Z direction, the direction of the arrow in the drawing is the + direction, and the direction opposite to the arrow direction is the-direction.

  FIG. 1 is a side view showing an example of a clasp 100 according to the embodiment. The clasp 100 is, for example, a fastener for accessories. As shown in FIG. 1, the clasp 100 is used for an endless annular accessory 1 such as a necklace or a bracelet, for example, and attached to a chain member 30 for decoration. The decorative chain member 30 is formed by connecting a large number of beads 31 such as pearls and glass balls, but the present invention is not limited to this, and various structures such as chains and strings can be applied. Clasp 100 is configured to include insertion member 10 and housing 20.

  The insertion member 10 is provided at an end 30 a on one end side of the decorative chain member 30. The insertion member 10 can be inserted into the housing 20 in the + X direction from the front ends 11a and 12a. The insertion member 10 is formed so as to be connected to the housing 20 by being inserted into the housing 20. The insertion member 10 has the configuration of the insertion member 11 shown in FIG. 1 or the insertion member 12 shown in FIG. That is, the insertion member 10 has a configuration (an insertion member 11 shown in FIG. 1) provided with a member that adsorbs to a magnetic guiding member of the housing 20 described later at its distal end 11a, or is locked by a locking mechanism of the housing 20 described later. (The insertion member 12 shown in FIG. 1). The insertion member 10 is made of metal, but is not limited to this. For example, a magnet may be used as a member that is attracted to the magnetic induction member.

  The housing 20 is provided at the other end 30 b of the decorative chain member 30. The housing 20 is openable and closable, and is formed so that the insertion member 10 can be inserted. The housing 20 is urged in the closing direction, and is formed so as to hold the inserted insertion member 10 in a sandwiched state. The housing 20 is connected to the insertion member 10 with the insertion member 10 inserted. The housing 20 includes a magnetic guiding member (not shown) for attracting the insertion member 11 by magnetic force, but a locking mechanism (not shown) for locking the insertion members 11, 12 instead of or together with the magnetic guiding member. (Shown). The magnetic guiding member and the locking mechanism may be any as long as it sucks or locks the insertion member 10 inserted into the housing 20. Therefore, various known configurations can be applied as the magnetic guiding member and the locking mechanism.

  The housing 20 is formed in a substantially spherical shape. The housing 20 includes a support shaft 20a, a first frame 21, and a second frame 22. The support shaft 20a supports the first frame 21 and the second frame 22. The support shaft 20a is formed of one round bar-shaped member parallel to the Z-axis, but is not limited to this. For example, the support shaft 20a is configured of a plurality of bar-shaped members arranged in the same straight line parallel to the Z-axis. It may be constituted by a projection or the like instead of a rod member. Each of the first frame 21 and the second frame 22 is formed in a substantially hemispherical shape, and is rotatably supported around a support shaft 20a. Further, each of the first frame 21 and the second frame 22 is urged in a direction in which their leading ends (ends on the −X side) approach each other. The first frame 21 and the second frame 22 are arranged so as to overlap each other when viewed from the Y direction, for example. The second frame 22 is arranged on the −Y side of the first frame 21. Note that the housing 20 is not limited to a substantially spherical shape, and may be, for example, a box shape such as a substantially cubic shape or a substantially rectangular parallelepiped shape, or a substantially long spherical shape. Further, each of the first frame 21 and the second frame 22 is not limited to a substantially hemispherical shape, but may be a box shape such as a substantially cubic shape or a substantially rectangular parallelepiped shape, or a shape obtained by cutting an elliptical sphere by a plane. You may.

  FIG. 2 is an exploded perspective view showing a main part of the clasp 100. As shown in FIG. 2, the first frame 21 has a first frame main body 21a, a first glass member (glass portion) 21b, and a decoration member 21c.

  A concave portion 40 is formed on the outer surface (the surface on the + Y side) of the first frame main body 21a. The concave portion 40 has a bottom 21d, a peripheral portion 21e, and a side wall 21f. The bottom portion 21d is, for example, formed in a circular shape when viewed from the Y direction and in a curved shape concave toward the −Y side. The peripheral portion 21e is formed in a region surrounding the bottom 21d. The peripheral portion 21e is formed, for example, in an annular shape and is a plane parallel to the XZ plane. The peripheral portion 21e is a joining surface that faces a flat surface 21h of the first glass member 21b, which will be described later, and is bonded to the flat surface 21. The side wall 21f is formed to extend in the + Y direction from the outer edge of the peripheral portion 21e to the opening 40a. The side wall 21f and the opening 40a are formed so that the first glass member 21b can be fitted therein. The first frame main body 21a is made of, for example, metal.

  The first glass member 21b is formed in a true circular plano-convex lens shape when viewed from the thickness direction (Y direction). The outer surface (the surface on the + Y side) of the first glass member 21b is a curved convex surface 21g. The surface (the surface on the -Y side) of the first glass member 21b opposite to the convex surface 21g is a plane 21h parallel to the XZ plane. The first glass member 21b is formed so as to be fitted into the recess 40, and the outer diameter of the first glass member 21b is set to a length equal to or less than the inner diameter of the opening 40a of the recess 40. The first glass member 21b has a function of a convex lens.

  The first glass member 21b is entirely transparent, but may be partially transparent instead of the entirety. The first glass member 21b is a glass (glass) containing silicate as a main component. The first glass member 21b is colorless.

  Note that the first glass member 21b is not limited to the configuration described above. For example, the glass member 21b may be a transparent organic glass, for example, acrylic or plastic, instead of the glass mainly containing silicate. When the glass member 21b is formed of a resin such as acrylic or plastic, the weight and weight of the glass member 21b are reduced as compared with the case of glass containing silicate as a main component, and cracking and chipping are suppressed. Further, the first glass member 21b may have a shape of a convex lens other than a plano-convex lens, such as a biconvex lens or a convex meniscus lens, instead of the plano-convex lens shape. Further, the first glass member 21b may be a concave lens instead of the convex lens. Further, the first glass member 21b may have a configuration having no function as a lens, and may have a shape different from the lens shape. In addition, the outer surface (the surface on the + Y side) of the first glass member 21b is not limited to the convex surface 21g, and may be, for example, a flat surface or a concave surface, or may be provided with an uneven design. . Further, the shape of the first glass member 21b as viewed from the thickness direction is not limited to a true circle, but may be an ellipse, an ellipse, a polygon, or the like. Further, the first glass member 21b may be colored, and may have the same configuration as a light control lens whose color changes by sunlight or ultraviolet rays.

  3A and 3B show the housing 20 of the clasp 100, wherein FIG. 3A is a perspective view and FIG. As shown in FIG. 3, the first glass member 21b is fitted into the recess 40 so as to close the opening 40a of the recess 40. A bonding material (not shown) such as an adhesive is arranged between the flat surface 21h and the peripheral portion 21e, and the flat surface 21h and the peripheral portion 21e are bonded via the bonding material. Thus, the first glass member 21b and the first frame body 21a are joined. Note that the first glass member 21b may be fitted while rotating with respect to the concave portion 40. Further, the first glass member 21b fitted in the concave portion 40 is not limited to being joined to the first frame body 21a, and may be, for example, in a state of being locked to the first frame body 21a. In this case, a configuration may be employed in which the first glass member 21b can be easily removed from the first frame main body 21a by releasing the locking.

  As described above, since the first glass member 21b is fitted into the recess 40 so as to cover the opening 40a, the housing space 50 is provided between the glass member 21b and the recess 40 as shown in FIG. It is formed. The accommodation space 50 is defined by the flat surface 21h and the bottom surface 21d, and accommodates a decorative member (such as a jewel) 21c. Note that the decoration member 21c may be hermetically sealed in the accommodation space 50 in order to prevent the decoration member 21c from being rusted or deteriorated.

  The decoration member 21c is composed of many jewels J and one plate P. The jewel J is, for example, a granular diamond formed in a predetermined cut such as a single cut or a square cut. The plate P is, for example, a metal plate, and its main surface is provided with a design representing characters. This character is, for example, the initial of the user of the ring accessory 1, but may be a name or a message instead of the initial.

  In addition, the decoration member 21c is not limited to being composed of many jewels J and one plate P. The shape, size, and number of the decorating members 21c are arbitrary as long as the decorating members 21c can be accommodated in the accommodation space 50. In addition, the material, color, combination, and the like of the decoration member 21c are also arbitrary. Therefore, it is possible to determine the configuration of the decoration member 21c according to the user's preference or desire. For example, the decoration member 21c may be composed of only the jewel J or the plate P, or may be composed of a plurality of plates P. Further, as the jewel J constituting the decorative member 21c, natural jewels such as ruby and sapphire, artificial jewels, imitation jewels formed from glass, or the like may be used.

  The decoration member 21c is not fixed to the concave portion 40 or the first glass member 21b, and is accommodated in the accommodation space 50 so as to be movable and rotatable. The components (for example, the jewel J and the plate P) of the decoration member 21c are moved and rotated in the accommodation space 50, so that the arrangement and the orientation change. In addition, some or all of the components of the decorative member 21c may be fixed to the first frame 21 (the concave portion 40 or the first glass member 21b). In this case, for example, only the plate P among the constituent members of the decoration member 21c may be fixed to the first frame 21 so that only the jewel J moves or rotates in the housing space 50. Further, the constituent members of the decoration member 21c may be accommodated in the accommodation space 50 in a state where the movement and the rotation thereof are restricted.

  The second frame 22, like the first frame 21, includes a second frame body 22a, a second glass member (glass portion) 22b, and a decoration member (jewel or the like) not shown. However, the second frame 22 may be configured without including one or both of the second glass member 22b and the decorative member.

  The second frame body 22a has the same configuration as the first frame body 21a, and has a recess (not shown) having the same configuration as the recess 40 of the first frame body 21a. The second glass member 22b has the same configuration as the first glass member 21b. The decorative member of the second frame 22 has the same configuration as the decorative member 21c of the first frame 21. The concave portion of the second frame body 22a is symmetrically disposed with respect to the concave portion 40 and a virtual XZ plane including the support shaft 20a. The second glass member 22b is symmetrically arranged with respect to the first glass member 21b and a virtual XZ plane including the support shaft 20a. The surface on the -Y side of the second glass member 22b is a convex surface 22g having the same configuration as the above-described convex surface 21g.

  Note that the second frame main body 22a may have a different configuration from the first frame main body 21a. In this case, the second frame main body 22a does not need to have a concave portion, and the second frame main body 22a has a concave portion. The configuration may be different from the concave portion 40 of the first frame main body 21a. Further, the second glass member 22b may have a different configuration from the first glass member 21b. The decoration member of the second frame 22 may have a different configuration from the decoration member 21c of the first frame 21. Further, the concave portion of the second frame main body 22a may be asymmetrically arranged with respect to the concave portion 40 and a virtual XZ plane including the support shaft 20a. Further, the second glass member 22b may be arranged asymmetrically with respect to the first glass member 21b and a virtual XZ plane including the support shaft 20a.

  FIG. 4 is a diagram illustrating that a viewer such as a user enjoys the decorative member 21c of the clasp 100 with eyes. As described above, the decoration member 21c is accommodated in the accommodation space 50 formed between the glass members 21b and 22b and the concave portion 40. Therefore, as shown in FIG. 4, the viewer can enjoy the decoration member 21c with the eyes E via the glass member 21b. Further, since the decoration member 21c is accommodated so as to be movable and rotatable, the movement or rotation of the decoration member 21c can be enjoyed with the eyes E. Furthermore, since the glass member 21b functions as a convex lens, the viewer can see the decoration member 21c enlarged via the glass member 21b. Therefore, the viewer can enjoy the decoration member 21c or the movement of the decoration member 21c in an enlarged manner.

Next, an example of a manufacturing process of the clasp 100 will be described.
The clasp 100 is manufactured by forming the insertion member 10 and the housing 20 respectively. The insertion member 10 is integrally formed by casting or cutting using a metal material. The housing 20 is formed by preparing a first frame 21, a second frame 22, and a support shaft 20a, and supporting the first frame 21 and the second frame 22 by the support shaft 20a.

  Here, as the support shaft 20a, for example, a metal cylindrical round bar is prepared, and is cut or cut to have a predetermined outer diameter and a predetermined length. The first frame 21 includes a first frame body 21a, a first glass member 21b, and a decoration member 21c. The decoration member 21c is arranged in the recess 40, and the first glass member 21b is fitted. It is formed by this. Here, the first frame main body 21a is formed by casting or cutting using a metal material. The first glass member 21b is made of a glass material, and is formed by cutting and polishing. The second frame 22 is also formed and prepared by a process similar to the process of forming the first frame 21 described above.

Next, an example of a method of using the clasp 100 will be described.
Returning to FIG. 1, the user connects the insertion member 10 to the end 30 a on one end of the decorative chain member 30 and connects the housing 20 to the other end 30 b of the decorative chain member 30. . In this way, the user manufactures the annular accessory 1. Note that the decorative chain-shaped member 30 is formed by, for example, inserting a thread or the like through a large number of gemstones 31 so that a large number of gemstones 31 are connected.

  When the user wears the annular accessory 1, the user holds the insertion member 10 with one of the left and right hands and the housing 20 with the other hand, and inserts the insertion member 10 into the housing 20. As a result, the insertion member 10 inserted into the housing 20 is locked or adsorbed by the housing 20 and connected thereto.

  Specifically, for example, when the user connects the clasp 100 having the insertion member 11 illustrated in FIG. 1, the user sandwiches the base end (the end on the + X side) of the housing 20 with the finger in the Y direction. In this case, the housing 20 is opened, and the insertion member 11 is inserted therein. Then, the insertion member 11 inserted into the housing 20 is attracted to the magnetic induction member of the housing 20. Thereafter, the insertion member 10 is held (or locked) by the housing 20 when the user operates to close the housing 20 by weakening the opening force of the housing 20. Thereby, the connection of the clasp 100 is completed.

  Further, for example, when the user connects the clasp 100 having the insertion member 12 shown in FIG. 1, the user inserts the insertion member 12 into the housing 20 in the + X direction from the distal end side. Then, the respective front end portions (ends on the −X side) of the first frame 21 and the first frame 22 enter the locking grooves 12 b formed along the circumferential direction on the side surface of the insertion member 10, and are inserted. The member 10 is locked to the housing 20. Thereby, the connection of the clasp 100 is completed.

  On the other hand, when removing the annular accessory 1 worn by the user, the user grips the insertion member 10 with one of the left and right hands, and grips the housing 20 with the other hand. Then, the user causes the housing 20 to be opened with a finger. That is, the user operates so as to separate the leading end (the end on the -X side) of the first frame and the leading end (the end on the -X side) of the second frame from each other. Then, the locking (holding) of the insertion member 10 by the housing 20 is released. In this state, the insertion member 10 is separated from the housing 20 in the −X direction. Thereby, the connection of the clasp 100 is released.

  According to the clasp 100 according to the embodiment described above, it is possible to provide the clasp 100 that can be easily manufactured and has a novel design. That is, in both the first frame 21 and the second frame 22, a housing space 50 capable of housing the decoration member 21c is formed, and the transparent glass members 21b and 22b are fitted into the recesses 40 so as to cover the housing space 50. Only with this, it is possible to provide the clasp 100 with a novel design in which the decoration member 21c in the accommodation space 50 can be enjoyed with the eyes through the glass members 21b and 22b.

  According to the above-mentioned clasp 100, since the jewel J is housed in the housing 20, a clasp having an aesthetic appearance like jewelry can be provided. Further, according to the clasp 100 described above, the clasp 100 can be designed to be in harmony with the design of the decorative chain member 30 without impairing the function as the fastener. Design. Further, according to the above-described clasp 100, the configuration of the decoration member 21c is arbitrary as long as the decoration member 21c can be accommodated in the accommodation space 50, so that the user can customize and enjoy the decoration member 21c according to his / her preference. . For example, the user can adopt the jewelry J or the plate P containing the message as the decoration member 21c. In addition, according to the above-described clasp 100, the arrangement and the orientation of the decoration member 21c change in the housing space 50 due to the external force such as vibration or impact acting on the housing 20, or with the change in the orientation of the housing 20. I do. For example, when the user moves the body while wearing the clasp 100, the arrangement and the orientation of the decoration member 21c change in accordance with the movement. Therefore, the viewer of the clasp 100 can enjoy the change of the arrangement and the direction of the decoration member 21c with the eyes E. Further, since the housing 20 is formed in a substantially spherical shape, the same aesthetic appearance can be obtained even when the clasp 100 is turned upside down (+ and-in the Y direction are reversed). it can. Further, according to the clasp 100 described above, the viewer can see the enlarged decorative member 21c via the glass members 21b and 22b, and thus can give an impact to the viewer. Further, since the housing 20 is provided with the glass members 21b and 22b on the surfaces on both sides on the + Y side and the −Y side, it is possible to make the design not available in the conventional metal housing.

  Subsequently, a modified example of the housing in the above-described embodiment will be described. In the following description of the modification, the same or equivalent components as those of the above-described clasp 100 are denoted by the same reference numerals, and description thereof will be omitted or simplified. FIG. 5 is a side view showing a modification. As shown in FIG. 5, the housing 220 according to the modified example is formed so as to be able to insert the insertion member 12, similarly to the above-described housing 20, and includes a magnetic guiding member or a locking mechanism (not shown). Further, the housing 220 according to the modified example includes a support shaft 20a, a first frame 221 and a second frame 222, similarly to the housing 20 described above.

  The first frame 221 has the same configuration as the above-described first frame 21 except that the first frame 221 includes the first operation portion 60. The second frame 222 has the same configuration as the above-described second frame 22 except that the second frame 222 includes the second operation portion 70. The first operation part 60 and the second operation part 70 are parts operated by a user with a finger when opening the housing 220 of the clasp. That is, the first operation portion 60 and the second operation portion 70 are portions operated to remove the insertion member 12 inserted into the housing 220 from the housing 220 with a finger. Note that, in the housing 220 according to the modified example, one of the first operation portion 60 and the second operation portion 70 may not be provided.

  The first operation portion 60 of the first frame 221 has a first extending portion 61 and a first hemispherical portion 62. The first extending portion 61 is formed to extend in the + X direction from the + X side end of the first frame main body 21a. The first extending portion 61 is provided integrally with the first frame main body 21a. The first extending portion 61 is formed, for example, in a flat plate shape parallel to the XZ plane. The first hemispherical portion 62 is formed integrally with the first extending portion 61 and is provided on the surface of the first extending portion 61 on the + Y side. The first hemispherical portion 62 has an outer shape obtained by cutting a sphere in one plane, and is formed in a substantially hemispherical shape. The surface on the + Y side of the first hemispherical portion 62 is, for example, a curved surface 62a having a constant curvature.

  The first extending portion 61 is made of, for example, metal. The first hemispherical portion 62 is made of resin, but is not limited thereto. The first hemispherical portion 62 may be made of metal, wood, ceramics, stone, or the like. For example, artificial pearls or natural pearls are divided into two. May be used.

  The second operating portion 70 of the second frame 222 has a second extending portion 71 and a second hemispherical portion 72, like the first operating portion 60 of the first frame 221 described above. The second extending portion 71 is formed to extend in the + X direction from the + X side end of the second frame main body 22a. The second extending portion 71 is provided integrally with the second frame main body 22a. The second extending portion 71 is formed, for example, in a flat plate shape parallel to the XZ plane. The second hemispherical portion 72 is formed integrally with the second extending portion 71, and is provided on the surface on the −Y side of the second extending portion 71. The second hemispherical portion 72 has a shape obtained by cutting a sphere in one plane, and is formed in a substantially hemispherical shape. The surface on the −Y side of the second hemispherical portion 72 is, for example, a curved surface 72 a having a constant curvature. The second extending portion 71 has the same configuration as the first extending portion 61, but may have a different configuration. The second hemispherical portion 72 has the same configuration as the first hemispherical portion 62, but may have a different configuration.

  The manufacturing process of the housing 220 according to the modified example is the same as the manufacturing process of the housing 20 described above. However, the first extending portion 61 is integrally formed with the first frame main body 21a, or is fixed by being fixed to the first frame main body 21a. Similarly, the second extending portion 71 is integrally formed with the second frame main body 22a, or is fixed to the second frame main body 22a by being fixed thereto. The first hemispherical portion 62 is provided, for example, by joining its plane (the surface on the −Y side) to the surface on the + Y side of the first extending portion 61, and is formed integrally with the first extending portion 61. May be done. Similarly, the second hemispherical portion 72 is provided by bonding its plane (the surface on the + Y side) to the surface on the −Y side of the second extending portion 71, but is integrated with the second extending portion 71. It may be formed.

  The method of using the clasp including the housing 220 according to the modification is the same as the method of using the clasp 100 described above. However, when the user performs an operation of opening the housing 220, the user applies a force to the first operation portion 60 and the second operation portion 70 in a direction approaching each other with a finger (the direction of arrow A in FIG. 5). To operate. Thereby, the tip (the end on the -X side) of the first frame 221 and the tip (the end on the -X side) of the second frame 222 are separated from each other (moved in the direction of arrow B in FIG. 5). Then, the housing 220 is in an open state.

  According to the clasp provided with the housing 220 according to the modified example described above, the user can easily open the housing 220 simply by simultaneously pressing the curved surfaces 62a and 72a with a finger. The operation of 220 can be performed easily and reliably.

  Although the embodiments have been described above, the present invention is not limited to the above description, and various modifications can be made without departing from the gist of the present invention.

Reference Signs List 10 Insertion member 20 Housing 20a Support shaft 21 First frame 21b First glass member (glass part)
21c Decoration materials (jewels, etc.)
21g convex surface 22 second frame 22b second glass member (glass part)
22g convex surface 30 decorative chain member 30a, 30b end 50 accommodation space (space)
62 First hemisphere (hemisphere)
72 Second hemisphere (hemisphere)
100 Clasp E eyes

Claims (4)

An insertion member provided at one end of the decorative chain member,
A housing that attracts the insertion member provided at the other end portion by a magnetic induction member having a magnetic force, or that is fastened by a locking mechanism;
A clasp consisting of
The housing includes a first frame and a second frame that open through a support shaft,
In one or both of the first frame and the second frame, while making a space in which jewels and the like can be put, a transparent glass part is fitted so as to cover the space,
A clasp wherein a certain jewel or the like in the space can be enjoyed by eyes through the glass part.   The clasp according to claim 1, wherein the glass part is a transparent organic glass and is made of acrylic or plastic.   3. The clasp according to claim 1, wherein the glass portion has a convex surface that makes a jewel or the like inside look large. 4.   The operation part for removing with a finger is provided in one or both of the first frame and the second frame, and a hemispherical part is provided in the operation part. A clasp according to any one of claims 3 to 4.

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