WO2016079874A1 - Clasp - Google Patents

Abstract

[Problem] To provide a clasp that has fewer constraints on shape and size so as to accommodate flexibility of design for the outer shape. [Solution] The clasp (100) comprises a receiving member (20) and an insertion member (10) to be inserted into the receiving member (20). The insertion member (10) is provided with a groove (40) formed on the surface. Protrusions (23, 24) formed inside the receiving member (20) are introduced into the groove (40) and guided along the groove (40), thereby controlling the direction of movement of the protrusions (23, 24).

Description

Clasp

The present invention relates to a clasp that can be used for accessories and the like.

As clasps that can be used for annular accessories such as necklaces and bracelets, those having various connection structures are provided, but as a general clasp, an insertion member in which a locking recess is formed, and an engagement member are provided. What is comprised from the receiving member in which the latching | locking part which can be engaged / disengaged in a stop recessed part was formed is known (for example, patent document 1 and patent document 2). In the clasp having this configuration, when connecting the insertion member and the receiving member, the user inserts the insertion member into the receiving member. Then, the locking portion enters and locks in the locking recess from the direction orthogonal to the insertion direction, and the insertion member and the receiving member are connected to each other. On the other hand, when releasing the mutual connection, the locking portion is separated from the locking recess in a direction perpendicular to the insertion direction (the direction opposite to the locking direction), and the locking portion is detached from the locking recess. Let At that time, for example, the user presses a button provided on the surface of the receiving member and connected to the locking portion (see Patent Document 1), or a slit formed between two frames constituting the receiving member (see FIG. The operation is performed to close the gap) (see Patent Document 2). Then, the user pulls the insertion member away from the receiving member, and the release of the mutual connection is completed.

In addition, as a general clasp, one that performs connection and release by rotating a connecting portion is known (for example, Patent Document 3). In the clasp having this configuration, the user inserts the insertion member into the receiving member, and in that state, rotates the insertion member in a predetermined direction with respect to the receiving member to fix the connection. On the other hand, when releasing this connection, the user rotates the insertion member with respect to the receiving member in a direction opposite to the predetermined direction.

Japanese Patent No. 3250091 JP 2011-235008 A JP-A-7-177717

¡Clasps, when used in accessories, often constitute part of the accessory design. Therefore, in order to ensure the freedom of design of accessories, a clasp with less restrictions on the outer shape and size is required. However, in the clasp composed of the insertion member in which the locking recess is formed and the receiving member in which the locking portion is formed, the receiving member has a configuration and engagement in which the locking recess is locked to the locking recess. It is necessary to provide a structure (for example, a button or a slit) for separating the stopper from the locking recess in the direction opposite to the locking direction. Therefore, the shape of the receiving member is restricted to have the above-described configuration, and it is difficult to form a small width in the locking direction.

On the other hand, in the clasp configured to connect and release by rotating the connecting portion, there are fewer restrictions on the shape and size of the surface of the clasp than for example a clasp having a button or a slit, but the receiving member Since a space is required in which the tip of the inserted insertion member can be rotated and locked, it is difficult to reduce the overall size of the clasp, and the size of the clasp is limited.

The present invention has been made in view of the above points, and includes a clasp that has few restrictions on the shape and size and can ensure the degree of design freedom of the outer shape, an insertion member that constitutes the clasp, and the clasp. It is an object to provide an accessory having.

In addition, according to the general clasp described above, when connecting and disconnecting the insertion member and the receiving member, the user operates the insertion member in the insertion direction or in the direction opposite to the insertion direction. In addition to this, further operations such as pressing the button, closing the slit, and rotating the insertion member with respect to the receiving member are required. For this reason, there is a problem that the user's operation performed when the clasp is connected and disconnected is complicated. Therefore, it is also included in the object of the present invention to provide a clasp that can be easily operated by a user when connecting and disconnecting the clasp, an insertion member that constitutes the clasp, and an accessory having the clasp.

A first invention created to solve the above problems is an insertion member that constitutes a clasp and is inserted into a receiving member, and has a groove formed on the surface of the insertion member, The protrusion provided inside the receiving member enters, guides the protrusion along the groove, and restricts the traveling direction of the protrusion.

According to such a configuration, the receiving member and the inserting member are connected when the inserting member is inserted into the receiving member and the protruding portion enters the groove portion, and the connecting portion is connected when the protruding portion is detached from the groove portion. Canceled. Therefore, there is no need to provide a member for connecting or releasing the connection between the receiving member and the insertion member on the surface side of the receiving member. Accordingly, since there are less restrictions on the shape and size of the outer shape of the receiving member, it is possible to ensure the degree of freedom in designing the outer shape of the clasp. Further, since the projecting portion advances along the groove portion, the direction and distance in which the receiving member and the inserted insertion member move relative to each other are regulated, so by forming the groove portion in a predetermined shape, The receiving member and the insertion member can be connected at a predetermined position. Furthermore, since the groove portion is formed in the insertion member, the outer shape of the insertion member is smaller than in the case where the projection portion is formed in the insertion member, so that the clasp can be formed thin.

A second invention created in order to solve the above-described problems is an insertion member according to the first invention, wherein the groove portion is a locking portion that prevents the protrusion portion from moving in the insertion direction and locks the protrusion portion. It is characterized by having.

According to such a configuration, the protruding portion is guided to the locking portion along the groove portion and locked to the locking portion, so that the protruding portion can be easily locked to the locking portion. Further, when the protrusion is locked to the locking portion, the locking portion serves as a barrier to prevent the protrusion from proceeding in the insertion direction, so that the receiving member and the insertion member connected to each other are separated from each other. Even when an external force is applied in the direction, the protrusions and the wall surfaces of the locking portions are in a more intense contact state, and the mutual locking is not released. Therefore, it is possible to more reliably maintain the clasp connection state and prevent the connection from being inadvertently released.

A third invention devised to solve the above-described problems is the insertion member according to the second invention described above, wherein the groove is formed at an end in the insertion direction and at least the protrusion enters and leaves. One is characterized in that it has a release part that can be formed.

According to such a configuration, when the inserting member is inserted into the receiving member, the protruding portion enters the groove portion via the release portion, and the protruding portion is separated from the receiving member in the direction opposite to the inserting direction. The part is detached from the groove part via the release part. Therefore, the clasp can be connected or disconnected only by operating the insertion member in the insertion direction or the direction opposite to the insertion direction.

A fourth invention devised to solve the above problems is the insertion member according to the third invention described above, wherein the groove portion is formed at the end portion on the distal end side in the insertion direction, and the protrusion portion enters and leaves. A release portion capable of at least one; and a folding portion that prevents the protrusion from proceeding in a direction opposite to the insertion direction and advances the protrusion in a direction different from the entry direction. The folded portion is provided between the release portion and the locking portion.

According to such a configuration, by inserting the insertion member into the receiving member, the projection portion is caused to enter the groove portion via the release portion, and further, the insertion member is pushed in the insertion direction so that the projection portion becomes the folded portion. It can be locked to the locking portion by abutting and further pulling the insertion member in the direction opposite to the insertion direction. Therefore, the insertion member and the receiving member can be easily and reliably connected to the receiving member by a simple operation of pushing the insertion member in the insertion direction and pulling in the direction opposite to the insertion direction.

A fifth invention devised to solve the above problems is the insertion member according to the fourth invention described above, wherein a plurality of protrusions are provided, and the release part that passes when the protrusions enter the groove part, The release portion that passes when the projection portion is detached from the groove portion is the same.

According to such a configuration, the protruding portion enters and leaves the groove portion through the same release portion. For this reason, the relative positions of the receiving member and the insertion member are the same when the protrusion enters the groove and when the protrusion separates from the groove. In other words, even when the insertion member is configured to advance or retract in the insertion direction with respect to the receiving member by the projection being guided by the groove, or even when the insertion member is configured to rotate relatively, the protrusion until the projection is separated from the groove. In the course of the part, the position of the insertion member relative to the receiving member returns to the original position. Therefore, it is possible to avoid twisting each other due to the relative positions of the receiving member and the insertion member being different between connection and separation.

A sixth invention created in order to solve the above-described problems is that any one of the insertion members according to the first to fifth inventions described above is rotatable relative to the main body of the insertion member. It is provided with the rotation part which has a rotating shaft supported and parallel to an insertion direction.

According to such a structure, even if it is a case where a rotation part rotates relatively with respect to a receiving member because a projection part advances along a groove part, the main-body part of an insertion member rotates with a rotation part. It can be set as the structure which does not. Therefore, when the clasp is connected and disconnected, the user grips and operates each of the main body portion and the receiving member, so that the main body portion and the receiving member are connected to each other even when the rotating portion rotates. Since the relative rotation is suppressed, the operation for connecting and releasing the clasp can be easily and reliably performed.

A seventh invention devised to solve the above problems is any one of the insertion members according to the third to sixth inventions, wherein the projection member is formed from the distal end side of the insertion member to the groove portion. It has a guide part which slides and guides from the front end side of an insertion member to a release part.

According to such a configuration, when the insertion member is inserted into the receiving member, the protrusion is guided from the distal end of the insertion member to the release portion by the guide portion. Therefore, when the insertion member is inserted into the receiving member, it can be inserted without aligning the release portion and the projection portion.

An eighth invention created in order to solve the above-described problem is that, in the insertion member according to the seventh invention described above, the guide portion is provided with a pair for each release portion, and each of the pair of guide portions is a protrusion. It is characterized in that it is formed so that the distances at which the parts slide are different from each other.

According to such a configuration, one of the pair of guide portions is formed with a short sliding distance with respect to the other, and is formed with a large inclination angle with respect to a plane perpendicular to the insertion direction, and has a steep slope shape. Therefore, when the protrusion slides along the one guide portion, the resistance received from the sliding surface when the protrusion advances in the insertion direction is reduced, so that the protrusion is directed in the insertion direction. Can proceed smoothly. In particular, even when the length of the guide portion in the insertion direction cannot be sufficiently secured, according to the configuration of the one guide portion described above, a guide portion having a short sliding distance and a steep slope shape is provided. Can do. Therefore, according to such a configuration, the insertion member can be smoothly inserted into the receiving member by pressing the insertion member in the insertion direction.

A ninth invention created in order to solve the above-described problems has a receiving member and any one of the insertion members according to the first to eighth inventions inserted into the receiving member. .

According to such a configuration, a clasp including a receiving member and an insertion member having the above-described effect can be provided.

A tenth invention created to solve the above-described problems is the clasp according to the ninth invention described above, wherein the receiving member biases the inserted insertion member in a direction opposite to the insertion direction. It has a biasing member.

According to such a configuration, by having the biasing member, the operation when the insertion member is detached from the receiving member can be easily performed using the biasing force of the biasing member. In addition, even when the locking portion is provided in the groove portion, the protruding portion can be easily guided to the locking portion by using the urging force, and the locking of the protruding portion in the locking portion can be easily released. Can be prevented.

An eleventh invention devised to solve the above problems is the clasp according to the tenth invention described above, wherein the biasing member is orthogonal to the insertion direction at the end opposite to the insertion direction. The insertion member has a contact portion that is formed at the distal end portion in the insertion direction and contacts the flat portion.

According to such a configuration, by having the flat portion and the contact portion that are in contact with each other, the urging force of the urging member is reliably transmitted to the insertion member via the flat portion and the contact portion. be able to. Further, when the clasp is connected or released, even if the distal end portion of the insertion member in the insertion direction rotates relative to the biasing member, the insertion member and the biasing member Since the areas of the contact surfaces are reduced, the generation of friction caused by rotation is suppressed. Therefore, the operation of connecting or releasing the clasp can be easily performed.

A twelfth invention devised to solve the above problem is the clasp according to the eleventh invention, wherein the contact portion is formed in a pointed shape with the apex portion facing the insertion direction, and the contact portion Is characterized in that the apex portion is formed on the rotation axis when the inserted insertion member rotates relative to the receiving member.

According to such a configuration, when the clasp is connected or disconnected, even if the distal end portion in the insertion direction of the insertion member rotates relative to the receiving member, the insertion member Since the area of each contact surface with the biasing member is minimized and the contact portion is prevented from swinging in the radial direction with rotation, it is possible to reduce the generation of friction generated on the contact surface due to rotation. . Thereby, the operation of connecting or releasing the clasp can be performed more easily.

The thirteenth invention created in order to solve the above problems is characterized by having the clasp according to the ninth to twelfth inventions described above.

According to such a configuration, a clasp including the above-described insertion member and the above-described receiving member can be provided in the form of an accessory.

According to the present invention, it is possible to provide a clasp that has few restrictions on the shape and size and can ensure the degree of freedom in designing the outer shape, an insertion member that constitutes the clasp, and an accessory having the clasp.

It is a schematic side view which shows an example of the clasp which concerns on 1st Embodiment. FIGS. 1A and 1B show the insertion member of the clasp of FIG. 1, wherein FIG. 1A is a cross-sectional view taken along line BB in FIG. 1, and FIG. It is a perspective view of the principal part which shows the insertion member of the clasp of FIG. It is an expanded view of the principal part which shows the insertion member of the clasp of FIG. 1A and 1B show a receiving member of the clasp of FIG. 1, wherein FIG. 1A is a cross-sectional view taken along the line DD of FIG. 1, and FIG. It is a schematic fragmentary sectional view which shows the connection operation | movement of the clasp of FIG. It is an expanded view of the principal part which shows an example of the clasp which concerns on 2nd Embodiment. It is a principal part side view which shows an example of the clasp which concerns on 3rd Embodiment. It is a principal part expanded view which shows an example of the clasp which concerns on 4th Embodiment. It is a side view of the principal part which shows an example of the accessory which concerns on 5th Embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the present invention is not limited to this. In order to describe the following embodiments, the drawings are expressed by appropriately changing the scale, for example, by partially enlarging or emphasizing them. In the figure, the insertion direction in which the insertion member is inserted with respect to the receiving member is indicated as the A direction, the direction of the arrow in the figure is the + direction, and the direction opposite to the arrow direction is the-direction. It is assumed that

<First Embodiment>
A first embodiment according to the present invention will be described with reference to the drawings. FIG. 1 is a schematic side view showing an example of a clasp according to the first embodiment. As shown in FIG. 1, the clasp 100 includes an insertion member 10 and a receiving member 20. The insertion member 10 can be inserted into the receiving member 20. In addition, the insertion member 10 and the receiving member 20 can be connected and disconnected from each other. The clasp 100 is used, for example, as a connector for an annular accessory such as a necklace or a bracelet.

2A and 2B show the insertion member 10, where FIG. 2A is a cross-sectional view taken along line BB in FIG. 1, and FIG. 2B is a cross-sectional view taken along line CC in FIG. The insertion member 10 is a rod-shaped member extending in the insertion direction A. The insertion member 10 has a main body portion 11 and a rotating portion 12.

The main body 11 includes a contact portion 13, a support portion 14, a grip portion 15, and a pressing portion 16 from the distal end side (+ A side) in the insertion direction A to the proximal end side (−A side). These are integrally formed in the insertion member 10.

The contact portion 13 is disposed at the distal end of the insertion member 10 on the insertion direction side (+ A side). When the insertion member 10 is inserted into the receiving member 20, the contact portion 13 contacts the flat portion 27a of the receiving member 20 (see FIG. 6). The plane portion 27a will be described later. The contact portion 13 is formed so that a cross-sectional shape in a direction orthogonal to the insertion direction A is circular. Further, the contact portion 13 is disposed on the + A side of the support portion 14. The cross-sectional area in the direction orthogonal to the insertion direction A of the contact portion 13 is, for example, larger than the cross-sectional area of the support portion 14 and a cross-section in the direction orthogonal to the insertion direction A of the through hole 12a of the rotating portion 12 described later. It is formed to include. As a result, the rotating unit 12 supported by penetrating the support unit 14 is prevented from coming off the support unit 14.

The support portion 14 is disposed on the proximal end side (−A side) of the contact portion 13 and the distal end side (+ A side) of the grip portion 15. The support part 14 is a part that supports the rotating part 12 to be rotatable relative to the main body part 11. The support portion 14 is formed in a cylindrical shape extending along the insertion direction A, and is disposed through the through hole 12 a of the rotating portion 12.

The grip portion 15 is disposed on the proximal end side (−A side) of the support portion 14 and the distal end side (+ A side) of the pressing portion 16. The grip portion 15 is a portion that can be gripped by the user when the insertion member 10 is guided to the insertion port 21 of the receiving member 20. The grip portion 15 has a columnar shape that has substantially the same outer diameter as the rotation portion 12 and extends in the insertion direction A, and slides with respect to the inner wall surface 22 of the receiving member 20 along the insertion direction A. It is formed to move forward and backward. Therefore, when the insertion member 10 is inserted into the receiving member 20, the grip portion 15 advances and retracts while being guided by the inner wall surface 22 of the receiving member 20. Therefore, the movement of the insertion member 10 with respect to the receiving member 20 in the direction orthogonal to the insertion direction A is suppressed, and the insertion / removal operation of the insertion member 10 with respect to the receiving member 20 can be easily performed.

The pressing portion 16 is disposed on the proximal end side (−A side) of the grip portion 15. The pressing portion 16 is a portion that can be pressed in the insertion direction (in the + A direction) by the user when the insertion member 10 and the receiving member 20 are connected and when the connection is released. Even when the insertion member 10 is inserted into the receiving member 20, the pressing portion 16 is formed such that a part or all of the pressing portion 16 is always exposed to the outside of the receiving member 20. The pressing portion 16 is preferably formed to have a flat or curved surface in order to facilitate pressing.

The pressing part 16 has a mounting hole 16a. The attachment hole 16a is formed so as to penetrate the pressing portion 16 in a direction orthogonal to the insertion direction A. The attachment hole 16a is a part for connecting the decorative portion 2 (see FIG. 10) having a configuration in which pearls, chains, and the like are connected to the insertion member 10. For example, the annular member 3 (see FIG. 10) connected to the end of the decorative portion 2 is connected to the mounting hole 16a.

The rotating part 12 is held so as to be rotatable relative to the main body part 11. The rotating unit 12 has a rotation axis R parallel to the insertion direction A. The rotary part 12 has a substantially annular cross section in a direction orthogonal to the insertion direction A, and has a through hole 12a formed so that the support part 14 can pass therethrough and extend in the insertion direction A. ing. The support portion 14 is fitted into the through hole 12a. As a result, the movement of the rotation part 12 in the direction perpendicular to the insertion direction A that occurs when the rotation part 12 rotates relative to the support part 14 (the deflection of the rotation axis R in the radial direction). Is suppressed.

FIG. 3 is a perspective view showing the rotating unit 12. FIG. 4 is a development view in which the outer peripheral surface of the rotating unit 12 shown in FIG. In FIG. 4, the upward direction when viewed in the direction of the reference sign in the figure is the insertion direction A. As shown in FIGS. 3 and 4, the rotating part 12 has a guide part 30 and a groove part 40. The guide part 30 and the groove part 40 are formed on the outer peripheral surface of the rotating part 12.

The guide part 30 is formed from the tip part (+ A side end part) in the insertion direction of the rotating part 12 to the groove part 40. The guide part 30 is formed in a concave shape with respect to the surface of the rotating part 12, and is formed so that protrusions 23 and 24 (see FIGS. 1 and 5) provided inside the receiving member 20 enter. The protrusions 23 and 24 will be described later. The guide portion 30 is formed such that the projection portions 23 and 24 are slidable from the distal end side (+ A side) of the insertion member 10 to release portions 31 and 32 described later. The guide 30 slides the protrusions 23 and 24 to restrict the traveling direction of the protrusions 23 and 24 and guide the protrusions 23 and 24 to the release parts 31 and 32.

The guide portion 30 is formed in a slope shape and has a shape that converges in a substantially V shape in the direction opposite to the insertion direction A and reaches the release portions 31 and 32. A pair of guide portions 30 is provided for each of the release portions 31 and 32, and 30 a and 30 b of the pair of guide portions 30 are symmetrical. Therefore, 30a and 30b of each of the pair of guide portions 30 reach the release portions 31 and 32 from the distances L1 and L2 at which the projections 23 and 24 slide, that is, the distal end portion in the insertion direction A (the end portion on the + A side). The distances L1 and L2 are formed to be the same. The shape of the guide portion 30 may be substantially U-shaped instead of substantially V-shaped.

The groove portion 40 is formed in a groove shape, and is formed so that the protruding portions 23 and 24 provided on the inner side of the receiving member 20 enter like the guide portion 30. The groove portion 40 has a guide path configuration that guides the protrusion portions 23 and 24 by sliding along the groove portion 40 when the protrusion portions 23 and 24 enter. Such a configuration of the groove 40 restricts the traveling direction of the protrusions 23 and 24. As shown in FIG. 4, the groove portion 40 includes release portions 31 and 32, locking portions 33 and 34, and folded portions 35, 36, 37, and 38. The groove portion 40 is formed so as to connect the release portions 31 and 32 and the locking portions 33 and 34, and the protruding portions 23 and 24 from the release portions 31 and 32 to the locking portions 33 and 34 or the locking portions 33, 34. Guide from 34 to release parts 31,32. The groove 40 has first to fourth guide surfaces S1 to S4 on which the protrusions 23 and 24 slide.

The path of the groove portion 40 is formed in a substantially W shape that connects the release portions 31 and 32, the folding portions 35 to 38, and the locking portions 33 and 34. The path from the release portions 31 and 32 of the groove portion 40 to the locking portions 33 and 34 extends in the opposite direction of the insertion direction A from the release portions 31 and 32, and is further bent to the opposite direction side (−A side) of the insertion direction A. ) And extending in a direction inclined in the insertion direction A (in the direction of arrow G) to be formed up to the folded portions 35 and 37, and from the folded portions 35 and 37 toward the insertion direction side (+ A side). And it extends in the direction inclined with respect to the insertion direction A (the direction of arrow I) and is formed up to the locking portions 33 and 34. On the other hand, the paths from the locking portions 33 and 34 to the release portions 31 and 32 are inclined from the locking portions 33 and 34 toward the opposite side (−A side) of the insertion direction A and with respect to the insertion direction A. A direction (in the direction of arrow K) extends to the folded portions 36, 38. From the folded portions 36, 38, the direction (arrow M) is inclined toward the insertion direction side (+ A side) and with respect to the insertion direction A. ) And further bent, and extends in the insertion direction A to the release portions 31 and 32. The protrusions 23 and 24 are formed so as to advance through the groove 40 only in the above order. That is, the advancing direction of the protrusions 23 and 24 moving through the groove 40 is one-way, and is formed so as not to advance in the opposite direction. In addition, the effect | action which the groove part 40 guides the projection parts 23 and 24 and the detail of a structure of the groove part 40 are mentioned later.

The release portions 31 and 32 are formed at the end of the groove portion 40 on the insertion direction side (+ A side). The release portions 31 and 32 have a shape in which the wall surface in the direction opposite to the insertion direction A is opened, and the protrusions 23 and 24 can move in and out of the groove portion 40 along the insertion direction A. Formed. The release portions 31 and 32 are disposed at positions corresponding to the positions of the projecting portions 23 and 24, and two release portions 31 and 32 are formed in the groove portion 40. Each of the two release parts 31 and 32 is disposed on the circumference around the rotation axis R of the rotation part 12 in a relative positional relationship of 180 degrees. Further, each of the two release portions 31 and 32, when the clasp 100 is connected, causes one of the two projections 23 and 24 (for example, the projection 23) to enter the groove 40 to connect the clasp. When the is released, the other protrusion (for example, the protrusion 24) is separated from the groove 40. That is, the release portions 31 and 32 that pass when the projections 23 and 24 enter and the release portions 31 and 32 that pass when the projections 23 and 24 leave the groove 40 are formed differently. Yes. For example, the protrusion 23 passes through the release portion 31 when entering the groove portion 40, and passes through the release portion 32 instead of the release portion 31 when leaving the groove portion 40.

The locking portions 33 and 34 are provided to lock the protruding portions 23 and 24 with respect to the groove portion 40. The locking portions 33 and 34 have locking surfaces 33a and 34a with which the protruding portions 23 and 24 abut on the insertion direction side (+ A side). With such a configuration in which the protrusions 23 and 24 are in contact with the locking surface, a force is exerted in the direction opposite to the insertion direction A, that is, the direction in which the insertion member 10 is separated from each other. When is operated, the protrusions 23 and 24 in a state of being locked to the locking portions 33 and 34 come into contact with the locking surfaces 33a and 34a. As described above, the locking surfaces 33a and 34a serve as a barrier against the movement of the projections 23 and 24 in the direction of disconnection, and thus a force is applied to the connected clasp 100 in the direction of separating from each other. In addition, the protrusions 23 and 24 are prevented from falling off the groove 40 and the connection of the clasp 100 is prevented. The locking portions 33 and 34 are disposed at positions corresponding to the positions of the protruding portions 23 and 24, and two locking portions 33 and 34 are formed in the groove portion 40.

The folded portions 35 to 38 are portions that prevent the projections 23 and 24 from moving in the direction opposite to the insertion direction A in the groove 40 and advance the projections 23 and 24 in a direction different from the entry direction. is there. The folded portions 35 to 38 are formed in a substantially V shape having a direction opposite to the insertion direction A as viewed from the side (viewed from a direction orthogonal to the insertion direction A). Four folding portions 35 to 38 are formed in the groove portion 40, and are provided between the release portions 31 and 32 and the locking portions 33 and 34, respectively.

Although the configuration of the insertion member 10 has been described above, the insertion member 10 is not limited to the configuration described above. For example, the insertion member 10 may have a shape other than a bar shape extending in the insertion direction A. Moreover, the main-body part 11 of the insertion member 10 is not limited to being integrally formed, For example, you may form by combining a some member. In addition, each of the rotation unit 12, the contact unit 13, the support unit 14, the gripping unit 15, and the pressing unit 16 may not be provided in the insertion member 10. When the rotation part 12 is not provided in the insertion member 10, the groove part 40 and the guide part 30 may be formed on the surface of the main body part 11 instead of the rotation part 12. In this case, the support unit 14 that rotatably supports the rotating unit 12 may be configured so that the gripping unit 15, the pressing unit 16, and the like are provided. Further, the pressing member 16 is not provided in the insertion member 10, and the insertion member 10 is fixed or brought into contact with another member such as a decorative portion 2 (see FIG. 10) to be described later. In the case of being configured integrally with the other member, the other member may be caused to function as a pressing portion, and the other member may be pressed in the user's operation when the clasp is connected. In this case, the end of the insertion member 10 on the −A side may be inserted into the decorative portion 2.

The cross section in the direction orthogonal to the insertion direction A of each of the contact portion 13, the support portion 14, and the grip portion 15 is not limited to a circular shape, and may be a polygonal shape, a shape having an arc portion or a straight portion, or the like. The cross-sectional shape or cross-sectional area may change along the insertion direction A. Similarly, the rotational part 12 may have a cross-sectional shape other than a substantially annular shape.

The abutting portion 13 may be provided in the rotating portion 12, for example, instead of the main body portion 11. The support unit 14 may have a configuration other than the above as long as the support unit 14 is configured to support the rotating unit 12 so as to be rotatable relative to the main body unit 11. Further, the gripping portion 15 may be configured to be separated from the inner wall surface 22 instead of sliding with respect to the inner wall surface 22 of the receiving member 20 when moving forward and backward along the insertion direction A.

Whether or not the mounting hole 16a is provided in the insertion member 10 is arbitrary. Further, the attachment hole 16 a may be provided in the grip portion 15, for example, instead of being provided in the pressing portion 16. Moreover, it is good also as a structure of the cyclic | annular attachment ring provided in the exterior of the main-body part 11 instead of the structure provided with the attachment hole 16a in the main-body part 11. FIG. In this case, for example, the attachment ring may be configured to project from the central portion of the end face on the base end side (−A side) of the pressing portion 16.

Further, the groove 40 is not limited to the above-described shape. Further, in the insertion member 10, each of the guide portion 30, the locking portions 33 and 34, the release portions 31 and 32, and the folding portions 35 to 38 may not be provided. Further, the number of the release portions 31 and 32 and the locking portions 33 and 34 is not limited to two, and may be one or three or more. Further, the number of folded portions 35 to 38 is not limited to four, and can be appropriately increased or decreased according to the number or shape of the release portions 31 and 32 or the locking portions 33 and 34. Moreover, about the groove part 40, the structure in which the latching | locking parts 33 and 34 are not provided may be sufficient.

The modification items related to the configuration of the insertion member 10 described above can be similarly applied to the insertion members 210, 310, and 410 of other embodiments described later.

5A and 5B show the receiving member 20, in which FIG. 5A is a cross-sectional view taken along line DD in FIG. 1, and FIG. 5B is a front view seen in the insertion direction. As shown in FIG. 5A, the receiving member 20 includes a cylindrical portion 25, a bottom portion 26, projecting portions 23 and 24, and an urging member 27.

The cylindrical portion 25 is formed so that the insertion member 10 can be inserted and removed in the insertion direction A. The cylindrical portion 25 is formed in a cylindrical shape extending in the insertion direction A, and an insertion port 21 is provided at an end portion in the direction opposite to the insertion direction A (−A direction). However, the cylinder part 25 is good also as cylinder shapes other than a cylinder. Further, the shape and size of the insertion port 21 are not particularly limited, but it is desirable that the insertion port 21 be formed to have a slightly larger dimension than the outer diameter dimension of the insertion member 10.

The bottom portion 26 is provided at an end portion on the insertion direction side (+ A side) of the cylindrical portion 25 and is formed so as to close the end portion. A mounting ring 28 is provided on the + A side of the bottom portion 26. The attachment ring 28 is provided to connect the receiving member 20 to the decorative portion 2 (see FIG. 10) configured by connecting pearls, chains, and the like. For example, an annular member 4 (see FIG. 10) connected to the end of the decorative portion 2 is connected to the attachment ring 28. Note that the connection between the receiving member 20 and other members such as the decorative portion 2 is not limited to being performed via the mounting ring 28, and whether or not the mounting ring 28 is provided on the receiving member 20 is arbitrary. For example, the receiving member 20 may be disposed so as to be fixed or abutted on the surface of the end portion of the decorative portion 2. In this case, the structure by which the edge part of the insertion direction side (+ A side) of the receiving member 20 is inserted with respect to the decoration part 2 may be sufficient.

The projecting portions 23 and 24 are provided inside the cylindrical portion 25 and are formed so as to protrude inward from the inner wall surface 22 of the cylindrical portion 25. The projecting portions 23 and 24 are columnar shapes having the same size, and are fixed to the inner wall surface 22 of the cylindrical portion 25. However, the protrusions 23 and 24 are not limited to the above-described configuration, and may have different shapes or sizes, for example, may have a conical shape or a prismatic shape, and protrude from the inner wall surface 22 in the inner direction. It may be formed possible. As shown in FIG. 5B, two protrusions 23 and 24 are provided in the receiving member 20, and each of the two protrusions 23 and 24 is on the inner wall surface 22 when viewed in the insertion direction A. Are arranged in a relative positional relationship of 180 degrees. Further, the protrusions 23 and 24 are disposed so that, for example, a straight line connecting the protrusions 23 and 24 is parallel to a plane perpendicular to the insertion direction A.

The urging member 27 is a member that urges the insertion member 10 inserted into the receiving member 20 in a direction opposite to the insertion direction A (−A direction). As shown in FIG. 5A, the urging member 27 is accommodated in the cylindrical portion 25 and disposed between the bottom portion 26 and the projecting portions 23 and 24. The urging member 27 has a flat portion 27a parallel to the direction orthogonal to the insertion direction A at the end in the direction opposite to the insertion direction A (the -A direction). The flat portion 27a is formed in a disk shape, for example. When the insertion member 10 is detached from the receiving member 20, the insertion member 10 is in contact with the surface on the insertion direction side (+ A side) of the protrusions 23 and 24. On the other hand, when the insertion member 10 is inserted into the receiving member 20, the flat surface portion 27 a is further pressed against the contact portion 13 and moves in the insertion direction A in the cylindrical portion 25 (see FIG. 6). Note that the flat surface portion 27 a in a state where the insertion member 10 is detached from the receiving member 20 may be formed so as to be in a separated state without being in contact with the protrusions 23 and 24.

Note that the receiving member 20 is not limited to the configuration described above. For example, one or both of the cylindrical portion 25 and the bottom portion 26 may not be provided in the receiving member 20. In this case, for example, instead of the cylindrical portion 25 and the bottom portion 26, a configuration of a housing in which the insertion member 10 can be inserted and the protruding portions 23 and 24 are provided inside may be employed. Moreover, the protrusion parts 23 and 24 are not limited to the said structure, For example, 1 or 3 or more may be provided. The projecting portions 23 and 24 are provided inside the cylindrical portion 25, but may be provided at the tip end portion (the end portion on the −A side) in the direction opposite to the insertion direction A of the cylindrical portion 25. Further, the urging member 27 may not be provided in the receiving member 20. Further, the urging member 27 is not limited to a configuration having a coil spring that functions as the urging means and a disk that functions as the flat portion 27a. As the urging member 27, for example, an elastic body other than a coil spring may be used as the urging means, and a plate-like member other than a circular shape may be used as the flat portion 27a. An integrated member may be employed.

Next, the connection operation of the clasp 100 will be described with reference to FIGS. FIG. 4 shows the movement of the protrusion 23 when traveling through the groove 40. FIG. 6 is a schematic partial cross-sectional view showing the connection operation of the clasp 100. In FIG. 6, the receiving member 20 is shown in a sectional view, and the insertion member 10 is shown in a side view, and the two members are shown separately.

When connecting the insertion member 10 and the receiving member 20 to each other, the user holds the insertion member 10 to the receiving member 20 in a state of holding the grip portion 15 and the receiving member 20 of the insertion member 10, for example. The insertion member 10 is inserted into the receiving member 20 from the distal end side through the insertion port 21, and the contact portion 13 is brought into contact with the flat portion 27a. Furthermore, when the user presses the pressing portion 16 of the insertion member 10 against the urging force of the urging member 27 toward the insertion direction A, the urging member 27 is inserted in the insertion direction as shown in FIG. The insertion member 10 contracts to A and advances in the insertion direction A, and the protrusions 23 and 24 enter the guide portion 30 from the end of the rotation portion 12 on the insertion direction side (+ A side). Then, the protrusions 23 and 24 are guided to the release parts 31 and 32 by the guide part 30, respectively. At this time, the projecting portions 23 and 24 slide like a cam operation with respect to the guide portion 30, and the rotating portion 12 rotates relative to the main body portion 11 and the receiving member 20. In this case, the contact portion 13 does not rotate with the rotating portion 12. Therefore, even if the rotating part 12 rotates, no friction is generated between the flat surface part 27a and the contact part 13, and therefore the rotating part 12 can be smoothly rotated.

Next, as shown in FIG. 4, the protruding portion 23 is guided by the guide portion 30 (see arrow E) and reaches the release portion 31. Subsequently, the projecting portion 23 enters the groove portion 40 via the release portion 31, the traveling direction is restricted by the groove portion 40, and the protrusion portion 23 is guided along the groove portion 40.

The protrusion 23 that has entered the groove 40 advances in the direction opposite to the insertion direction A (direction -A) (see arrow F). Then, when the projection 23 abuts on the first guide surface S1, the direction of travel changes, and the projection 23 moves in the direction of the arrow G while sliding along the first guide surface S1. The first guide surface S <b> 1 is formed to be inclined with respect to the insertion direction A, and is provided for sliding the protrusion 23 to guide the folded portion 35. Here, when viewed in the insertion direction A, the width of the first guide surface S1 (distance in the direction orthogonal to the insertion direction A) W1 is the width of the release portion 31 (release in the direction orthogonal to the insertion direction A). It is formed so as to include a part distance W2. Therefore, the protrusion 23 that travels along the direction of the arrow F in FIG. 4 (the −A direction) is securely brought into contact with the first guide surface S1, and the protrusion 23 is turned to the folded portion 35 by the first guide surface S1. Can be guided.

When the user loosens the pressure on the insertion member 10 after the projection 23 reaches the turn-up portion 35, the projection 23 is pushed to the insertion direction side (+ A side) by the urging force of the urging member 27, and the second It contacts the guide surface S2 (see arrow H). The second guide surface S <b> 2 is formed to be inclined with respect to the insertion direction A, and is provided for sliding the protrusion 23 to guide the locking portion 33. Here, the second guide surface S <b> 2 is formed so that the width W <b> 3 includes the outer peripheral vertex T <b> 1 of the folded portion 35 when viewed in the insertion direction A. Therefore, the protrusion 23 that advances in the direction of arrow H (+ A direction) in FIG. 4 is securely brought into contact with the second guide surface S2, and the protrusion 23 is guided to the locking portion 33 by the second guide surface S2. be able to.

The protrusion 23 reaches the locking portion 33 while sliding on the second guide surface S2 by the biasing force of the biasing member 27 (see arrow I), and is locked to the locking portion 33. When the protrusion 23 is locked, the wall in the + A direction serves as a barrier to prevent the protrusion 23 from progressing in the insertion direction A. Therefore, even if an external force acts in the direction in which the insertion member 10 and the receiving member 20 connected to each other are separated from each other, the mutual connection is not released. Thus, the connection of the clasp 100 is completed.

Next, the operation when the clasp 100 is disconnected will be described. When releasing the connection of the clasp 100, the user presses the insertion member 10 in the insertion direction (in the + A direction). As a result, as shown in FIG. 4, in the groove 40, the protrusion 23 is detached from the locking portion 33 and moves in the −A direction (see arrow J).

Then, when the projection 23 abuts on the third guide surface S3, the projection 23 changes the direction of travel and moves in the direction of the arrow K while sliding along the third guide surface S3. The third guide surface S3 is formed so as to be inclined with respect to the insertion direction A, and is provided for sliding the protruding portion 23 to guide the folded portion 36. Here, the third guide surface S <b> 3 is formed so that the width W <b> 4 includes the outer peripheral vertex T <b> 2 of the locking portion 33 when viewed in the insertion direction A. Therefore, the protrusion 23 that advances from the locking portion 33 in the direction of the arrow J (−A direction) in FIG. 4 is securely brought into contact with the third guide surface S3, and the protrusion 23 is folded back by the third guide surface S3. It can be guided to part 36.

When the user loosens the pressure on the insertion member 10 after the projection 23 reaches the turn-back portion 36, the projection 23 is pushed toward the insertion direction (in the + A direction) by the urging force of the urging member 27, It contacts the fourth guide surface S4 (see arrow M). The fourth guide surface S4 is formed to be inclined with respect to the insertion direction A, and is provided for sliding the protrusion 23 to guide the release portion 32. Here, the fourth guide surface S4 is formed so that the width W5 includes the outer peripheral vertex T3 of the folded portion 36 when viewed in the insertion direction A. Therefore, the protrusion 23 that advances in the + A direction can be reliably brought into contact with the fourth guide surface S4, and the protrusion 23 can be guided to the release portion 32 by the fourth guide surface S4.

The protrusion 23 receives the urging force of the urging member 27 and reaches the position (−A side) before the release portion 32 along the fourth guide surface S4 (see arrow N). Further, the protruding portion 23 advances in the + A direction, is detached from the groove portion 40 via the release portion 32, and enters the guide portion 30 (see arrow O). Thereafter, the protruding portion 23 advances in the + A direction by the urging force of the urging member 27 and is detached from the guide portion 30. And the mutual connection is cancelled | released by extracting the insertion member 10 from the receiving member 20. FIG.

The operation of one protrusion 23 in the groove 40 and the action of the groove 40 guiding the protrusion 23 have been described above. The operation of the other protrusion 24 and the action of the groove 40 guiding the protrusion 24 are also described above. It is the same. When the clasp 100 is connected, one projecting portion (for example, the projecting portion 23) enters the groove portion 40 via the release portion 31, and the other projecting portion (for example, the projecting portion 24) is disposed via the release portion 32. Enter the groove 40. When the connection of the clasp 100 is released, the one protrusion (for example, the protrusion 23) is detached from the groove 40 through the release portion 32, and the other protrusion (for example, the protrusion 24) is It separates from the groove 40 through the release part 31.

According to such a clasp 100 of the present embodiment, the insertion member 10 is inserted into the receiving member 20 without being aligned in the circumferential direction, and is further pressed only in the insertion direction A. 100 connections are possible. Further, the clasp 100 can be disconnected simply by pressing the insertion member 10 toward the receiving member 20 in the insertion direction A and further pulling it out. That is, the user can connect and disconnect the clasp 100 by such a simple operation. Moreover, since the guide part 30 and the groove part 40 are provided in the rotation part 12, even if the rotation part 12 rotates by the protrusion parts 23 and 24 sliding with respect to the guide part 30 and the groove part 40, it is inserted. Since the main body 11 of the member 10 does not rotate, the finger of the hand holding the insertion member 10 of the user is not twisted. Therefore, the user can easily connect and disconnect the clasp 100. Furthermore, since it is not necessary to provide a member for connecting or releasing the insertion member 10 and the receiving member 20 on the surface side of the receiving member 20, there is a restriction on the shape and size of the outer shape of the receiving member 20. As a result, the degree of freedom in designing the outer shape of the clasp 100 can be ensured.

Second Embodiment
Next, a second embodiment will be described with reference to FIG. FIG. 7 shows an example of the clasp according to the present embodiment, and is a developed view in which the outer peripheral surface of the rotating unit 212 is extended in a planar shape. FIG. 7 shows the groove 240 and the movement of one of the two protrusions 23 and 24. In the following description, parts different from those of the first embodiment will be mainly described, and the same or equivalent components as those of the first embodiment will be denoted by the same reference numerals and description thereof will be omitted or simplified. The clasp 200 according to the present embodiment includes an insertion member 210 and a receiving member 20. The insertion member 210 has a rotating part 212. As shown in FIG. 7, the rotating part 212 includes a guide part 230 and a groove part 240. The guide part 230 and the groove part 240 are formed on the surface of the rotating part 212. The guide units 230a and 230b have the same configuration as the guide units 30a and 30b according to the first embodiment.

The path of the groove part 240 connects the release parts 231, 232, the folded parts 235, 236, 237, 238 and the locking parts 233, 234 in the same manner as the groove part 40 described above. However, the groove portion 240 differs from the groove portion 40 described above in that the release portions 231 and 232 into which the protrusion portions 23 and 24 enter and the release portions 231 and 232 through which the protrusion portions 23 and 24 pass when the protrusion portions 23 and 24 are detached from the groove portion 240. Is the same. That is, for example, the protruding portion 23 enters the groove portion 240 via the release portion 231 and separates from the groove portion 240 via the same release portion 231. The groove 40 has fifth to eighth guide surfaces S5 to S8 on which the protrusions 23 and 24 slide.

Next, the connection operation of the clasp 200 of this embodiment will be described. The protrusion 23 that has entered the groove 240 via the guide 230 (see arrow P) proceeds in the direction opposite to the insertion direction A (direction −A) (see arrow Q). And the protrusion part 23 contact | abuts to 5th guide surface S5, and changes a advancing direction. The fifth guide surface S5 is provided for sliding the protrusion 23 to guide it to the folded portion 235, and a pair is arranged so as to sandwich the protrusion 23 from a direction orthogonal to the traveling direction of the protrusion 23. The Ends in the + A direction of the pair of fifth guide surfaces S5 are formed so as to sandwich the release portion 231 when viewed from the insertion direction A. That is, in FIG. 7, the interval W6 between the ends in the + A direction of the pair of fifth guide surfaces S5 is larger than the width W7 of the release portion 231 and the interval W6 includes the width W7 when viewed in the insertion direction A. Is formed. Therefore, when the protruding portion 23 travels in the −A direction via the release portion 231, it is smoothly guided to the fifth guide surface S5 as it is. And the projection part 23 is guided to the folding | returning part 235, sliding with respect to 5th guide surface S5 (refer arrow S).

When the user loosens the pressure on the insertion member 10 after the projection 23 reaches the turn-up portion 235, the projection 23 is pushed toward the insertion direction (in the + A direction) by the urging force of the urging member 27, It contacts the sixth guide surface S6 (see arrow T). The sixth guide surface S <b> 6 is formed to be inclined with respect to the insertion direction A, and is provided for sliding the protruding portion 23 to guide the locking portion 233. Here, the sixth guide surface S6 is formed so that the width W8 includes the outer peripheral vertex T4 of the folded portion 235 when viewed in the insertion direction A. For this reason, the protrusion 23 that advances in the + A direction can be reliably brought into contact with the sixth guide surface S6, and the protrusion 23 can be guided to the locking portion 233 by the sixth guide surface S6.

The protrusion 23 reaches the locking portion 233 while sliding on the sixth guide surface S6 by the biasing force of the biasing member 27 (see arrow U), and is locked to the locking portion 233. When the protrusion 23 is locked, the wall in the + A direction serves as a barrier to prevent the protrusion 23 from proceeding in the insertion direction A. Therefore, even if an external force acts in the direction which separates the insertion member 210 and the receiving member 20 which are connected to each other from each other, the mutual connection is not released. Thus, the connection of the clasp 100 is completed.

Next, the operation when the clasp connection of this embodiment is released will be described. First, the user presses the insertion member 210 toward the insertion direction (in the + A direction). Thereby, in the groove part 240, the projection part 23 separates from the locking part 233 and moves in the -A direction (see arrow V).

And the protrusion part 23 will change the direction of advancing, if it contact | abuts on 7th guide surface S7, and moves to the folding | returning part 236, sliding along 7th guide surface S7 (refer arrow W). The seventh guide surface S <b> 7 is provided for sliding the protrusion 23 to guide the folded portion 236. Here, the seventh guide surface S <b> 7 is formed so that the width W <b> 9 includes the outer peripheral vertex T <b> 5 of the locking portion 233 when viewed in the insertion direction A. Therefore, the protrusion 23 that advances in the −A direction from the locking portion 233 can be reliably brought into contact with the seventh guide surface S7, and the protrusion 23 can be guided to the folded portion 236 by the seventh guide surface S7.

When the user loosens the pressure on the insertion member 10 after the projection 23 reaches the turn-back portion 236, the projection 23 is pushed toward the insertion direction (in the + A direction) by the urging force of the urging member 27, The protrusion 23 is in contact with the eighth guide surface S8. The eighth guide surface S8 is provided for sliding the protrusion 23 to guide it to the release part 231, and a pair is arranged so as to sandwich the protrusion 23 from a direction orthogonal to the traveling direction. The width W10 at the −A side ends of the pair of eighth guide surfaces S8 is formed so as to include the outer peripheral vertex T6 of the folded portion 236 when viewed from the insertion direction (A direction). Therefore, the protrusion 23 is guided to the eighth guide surface S8 as it is when it is detached from the folded portion 236 in the + A direction. Then, the protrusion 23 is guided to the front (−A side) of the release portion 231 while sliding with respect to the eighth guide surface S8 (see arrow X).

Next, the projecting portion 23 advances in the + A direction, leaves the groove portion 240 via the release portion 231 (see arrow Y), and enters the guide portion 230 (see arrow Z). Thereafter, the protruding portion 23 further advances in the + A direction and is detached from the guide portion 230. Since the urging force of the urging member 27 is acting on the protrusion 23, the protrusion 23 can move to the arrow X in FIG. 7 without performing an operation such as pulling the clasp 200 by the user. It moves smoothly along the arrow Y and the arrow Z. Then, by pulling out the insertion member 210 from the receiving member 20, the mutual connection is released.

As described above, the operation of the protruding portion 23 and the operation and effect of the release portion 231, the locking portion 233, and the folded portions 235 and 236 of the groove portion 240 when the connection and release of the clasp 200 according to the present embodiment have been described. The same applies to the operation of the other protrusion 24 and the operational effects of the release portion 232, the locking portion 234, and the folded portions 237 and 238.

<Third Embodiment>
Next, a third embodiment will be described with reference to FIG. FIG. 8 is a main part side view showing an example of the clasp 300 according to the present embodiment. In the following description, parts different from those of the first embodiment will be mainly described, and the same or equivalent components as those of the first embodiment will be denoted by the same reference numerals and description thereof will be omitted or simplified.

The clasp 300 according to the present embodiment includes an insertion member 310 and a receiving member 20. As shown in FIG. 8, the insertion member 310 has a main body portion 311 and a rotation portion 312. The rotating part 312 has a contact part 313. The contact part 313 is formed in a pointed shape with the apex directed to the insertion direction side (+ A side), and has an apex part 313a. The apex portion 313 a is disposed on the rotation axis R when the inserted insertion member 310 rotates relative to the receiving member 20. In addition, although the shape of the contact part 313 is a cone shape, it is not limited to this, A polygonal pyramid shape, a thin rod shape, etc. may be sufficient.

According to the present embodiment, when connecting the clasp 300 and releasing the connection, even if the rotating part 312 rotates relative to the receiving member 20, the insertion member 310 and the flat part 27a. (See FIG. 5 (b)) The area of the contact surfaces with each other is minimized, and the shake of the position of the contact portion 313 caused by the rotation is prevented, so that the generation of friction caused by the rotation can be reduced. . Therefore, the operation of connecting and releasing the connection of the clasp 300 can be performed more easily.

<Fourth embodiment>
Next, the fourth embodiment will be described with reference to FIG. FIG. 9 is a main part development view showing an example of the clasp according to the present embodiment, and is a development view in which the outer peripheral surface of the rotation part 12 is extended in a planar shape as in FIGS. 4 and 7. In FIG. 9, the guide unit 30 is also illustrated in order to facilitate comparison between the guide unit 430 and the guide unit 30. In the following description, portions different from the first embodiment will be mainly described, and the same or equivalent components as those in the first embodiment will be denoted by the same reference numerals and description thereof will be omitted or simplified.

The clasp 400 according to the present embodiment includes an insertion member 410 and a receiving member 20. As shown in FIG. 9, the rotation part 412 of the insertion member has a guide part 430 and a groove part 40. A pair of guide portions 430 is provided for each of the two release portions 31 and 32. In addition, each of the pair of guide portions 430 is formed so that the distances at which the protrusions 23 and 24 slide are different from each other. That is, the sliding distance L3 of one guide part 430a and the sliding distance L4 of the other guide part 430b are different from each other, and the sliding distance L3 is shorter than the sliding distance L4. Has been. With such a configuration, an inclination angle with respect to a plane orthogonal to the insertion direction A of the one guide portion 430a is formed large. Then, when paying attention to the slope shape of the one guide portion 430a, compared to the guide portions 30a and 30b according to the first embodiment, the distance at which the projections 23 and 24 slide is short, and in the insertion direction A. The inclination angle with respect to a plane parallel to the orthogonal direction is large and has a steep slope shape.

According to the configuration of the guide part 430 having such a steep slope, the protrusions 23 and 24 slide along the one guide part 430a described above, thereby reducing the resistance received from the sliding surface. Therefore, it can be smoothly advanced toward the insertion direction (in the + A direction) while guiding the protrusions 23 and 24.

<Fifth Embodiment>
Next, a fifth embodiment will be described with reference to FIG. FIG. 10 is a side view of an essential part showing an example of the accessory 1 of the present embodiment. In the following description, the same or equivalent components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted or simplified. As illustrated in FIG. 10, the accessory 1 is, for example, an annular accessory, and includes a clasp 100, a decorative portion 2, and annular members 3 and 4.

The decoration part 2 is formed by connecting a plurality of pearls. However, the decoration part 2 is not limited to the said structure, For example, you may be comprised from a chain or a string-like member. The annular member 3 is connected to the mounting hole 16 a of the insertion member 10. The annular member 4 is connected to the attachment ring 28 of the clasp body 30. The clasp 10 is connected to the decorative portion 2 via the annular members 3 and 4.

The surface of the clasp 100 (receiving member 20) may be decorated. In this case, as described above, since the degree of freedom of design of the outer shape of the clasp 100 is ensured, the connection function of the clasp 100 is not hindered. Various designs can be adopted within the range. For example, the outer shape of the clasp 100 may be a key shape, and a cylindrical decorative member formed of jewels such as onyx or amethyst may be disposed on the surface of the clasp 100.

The accessory 1 is not limited to the configuration described above. For example, the accessory 1 may have a shape other than an annular shape. Moreover, the accessory 1 may have one or both of the clasp 100 and the decoration part 2. Further, the accessory 1 may have a plurality of one or both of the insertion member 10 and the receiving member 20. In this case, the clasp 100 constituting the accessory 1 includes, for example, two insertion ports 21 and two insertions. You may have the receiving member 20 formed so that the insertion members 10 could be connected. Moreover, in the accessory 1, the clasp 100 and the decoration part 2 are good also as a structure connected without passing through one or both of the annular members 3 and 4, In this case, one of the insertion member 10 and the receiving member 20 is sufficient. Alternatively, both of them may be integrally formed with the decorative portion 2 by being fixed or abutted on the end portion of the decorative portion 2.

The insertion member, clasp, and accessory of the present invention have been described above. However, 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. For example, a part of the configuration of the above embodiment may be replaced with the configuration of another embodiment, or the configuration of the above embodiment may be combined.

The use of the clasp of the present invention is not limited to a connection means for connecting a decorative part having a chain or a connected gemstone, but instead connects a pearl or chain and a pendant head. You may apply to the connection means for doing. In this case, it is possible to prepare pendant heads of various shapes and sizes in advance, and appropriately select and use a pendant head that suits the user's fashion and taste. Moreover, in the accessory of this invention, you may employ | adopt the design of the said pendant head as a design of the clasp external shape. The clasp of the present invention is mainly an accessory, but is not limited to this application. For example, the insertion member and the clasp of the present invention may be used as connection means for connecting the main body of the mobile phone and the strap. In addition, the clasp of the present invention may be a multiple clasp by integrally joining a plurality of insertion members and a plurality of receiving members 20 on the insertion member side and the receiving member side, respectively.

A ... Insertion direction R ... Rotating shaft 1 ... Accessory 10, 210, 310, 410 ... Insertion member 11, 311 ... Main body part 12, 212, 312 ... Rotation part 13,313 ... Contact part 20 ... Accepting member
23, 24 ... Projection portion 27 ... Biasing member 27a ... Plane portion
30, 230, 430 ... guide part 31, 32, 231, 232 ... release part 33, 34, 233, 234 ... locking part 35, 36, 37, 38, 235, 236, 237, 238 ... folding part 40, 240 ... groove 100,200,300,400 ... clasp 313a ... vertex

Claims (13)

An insertion member that constitutes the clasp and is inserted into the receiving member,
Having a groove formed on the surface of the insertion member;
An insertion member characterized in that a protrusion provided inside the receiving member enters the groove, guides the protrusion along the groove, and restricts the traveling direction of the protrusion. The insertion member according to claim 1, wherein the groove portion has a locking portion that prevents the protrusion from moving in the insertion direction and locks the protrusion. The insertion member according to claim 2, wherein the groove portion has a release portion formed at an end portion in the insertion direction and formed so that at least one of the protrusion portion can enter and leave. The groove portion includes the release portion, and a folded portion that prevents the protrusion portion from proceeding in a direction opposite to the insertion direction and advances the protrusion portion in a direction different from the entry direction, and the release portion. Formed to connect the locking portion,
The insertion member according to claim 3, wherein the folded portion is provided between the release portion and the locking portion. A plurality of the protrusions are provided,
The insertion member according to claim 4, wherein a release portion that passes when the projection portion enters the groove portion and a release portion that passes when the projection portion separates from the groove portion are the same. The insertion member includes a rotating portion that is rotatably supported relative to the main body portion of the insertion member and has a rotation axis that is parallel to the insertion direction. Item 6. The insertion member according to any one of Items 5. The guide portion is formed from the distal end side of the insertion member to the groove portion, and has a guide portion that slides and guides the projection portion from the distal end side of the insertion member to the release portion. Item 7. The insertion member according to any one of items 6. 8. The insertion according to claim 7, wherein a pair of the guide portions is provided for each of the release portions, and each of the pair of guide portions is formed such that a distance that the projection portion slides is different from each other. Inset member. A clasp comprising the receiving member and the insertion member according to any one of claims 1 to 8 inserted into the receiving member. 10. The clasp according to claim 9, wherein the receiving member includes a biasing member that biases the inserted insertion member in a direction opposite to the insertion direction. The biasing member has a flat portion parallel to a direction orthogonal to the insertion direction at an end in a direction opposite to the insertion direction,
The clasp according to claim 10, wherein the insertion member has a contact portion that is formed at a distal end portion in the insertion direction and contacts the flat portion. The contact portion is formed in a pointed shape with the apex portion facing the insertion direction side,
The clasp according to claim 11, wherein the abutting portion has the apex portion formed on a rotation axis when the inserted insertion member rotates relative to the receiving member. An accessory comprising the clasp according to any one of claims 9 to 12.

Images