JP6709998B2 - Clasp - Google Patents

Description

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, there are provided clasps having various connection structures, but generally, the clasps include insertion members having locking recesses, and clasps. There is known a structure including a receiving member in which a locking portion that can be engaged and disengaged is formed in a stop recess (for example, Patent Document 1 and Patent Document 2). In the clasp of this configuration, when connecting the inserting member and the receiving member, the user inserts the inserting 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 disconnecting each other, the locking part is separated from the locking recess by separating the locking part from the locking recess in a direction orthogonal to the insertion direction (direction opposite to the locking direction). Let At that time, the user presses, for example, 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 forming the receiving member). The operation is performed so as to close the gap (see Patent Document 2). Then, the user pulls the insertion member away from the receiving member, and the disconnection between them is completed.

In addition, as a general clasp, there is known a clasp that connects and disconnects by rotating a connecting portion (for example, Patent Document 3). In the clasp of this configuration, the user inserts the inserting member into the receiving member, and in that state, rotates the inserting 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, 7-177917, A

Clasps, when used in accessories, often form part of the design of the accessory. Therefore, in order to secure the degree of freedom in the design of accessories, a clasp with less restrictions on the shape and size of the outer shape is required. However, in the clasp including the insertion member having the locking recess and the receiving member having the locking portion, the receiving member has a structure and a locking structure for locking the locking portion in 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 due to the above-described configuration, and it is difficult to form the receiving member with a small width in the locking direction.

On the other hand, in the clasp configured to connect and disconnect by rotating the connecting portion, the shape and size of the surface of the clasp are less restricted than, for example, a clasp provided with a button or a slit, but a receiving member. Since a space is required in which the tip of the inserted inserting member can be rotated and locked, it is difficult to reduce the size of the entire clasp, and the size of the clasp is restricted.

The present invention has been made in view of the above points, and a clasp that is less restricted in terms of shape and size and that can secure design freedom of an outer shape, an insertion member that configures the clasp, and the clasp. It is an object to provide an accessory having the same.

Further, according to the above general clasp, when connecting and disconnecting the inserting member and the receiving member to each other, the user operates the inserting member in the inserting direction or in the direction opposite to the inserting direction. In addition to this, it is necessary to further press the button, close the slit, and rotate the insertion member with respect to the receiving member. Therefore, there is a problem that the user's operation performed when connecting and disconnecting the clasp becomes complicated. Therefore, it is also an object of the present invention to provide a clasp that is easy for a user to operate when connecting and disconnecting the clasp, an insertion member that configures the clasp, and an accessory that includes the clasp.

A first invention devised to solve the above problem is a clasp including a receiving member and an inserting member inserted into the receiving member from its tip, and the receiving member is provided inside thereof. A plurality of protrusions including a first protrusion and a second protrusion, the insertion member has a groove formed on the surface thereof, and the groove has the protrusion inserted and the protrusion along the groove. A plurality of release portions that are provided at the distal end portion in the insertion direction of the protrusions and regulate the traveling direction of the protrusions, and that are capable of both entering the protrusions and leaving the protrusions. A plurality of locking portions that lock the protrusions by preventing the protrusions from advancing in the insertion direction, and the plurality of release portions pass through when the first protrusions enter the groove. And a second release part which is a release part different from the first release part and which is passed when the first projection part is released from the groove part after the locking by the locking part is released. stop portion includes a first locking portion for locking the first protrusion, and a second locking portion for locking the second protrusion, the first release portion includes a first locking portion and A groove that communicates with both of the second locking portions, and when the first protrusion enters the groove through the first opening, the second protrusion enters the groove through the second opening, second protrusion when the protrusion is disengaged from the groove through the second release portion is formed so that be disengaged from the groove through the first release unit, characterized in that.

According to the first aspect of the present invention, the receiving member and the inserting member are connected by inserting the inserting member into the receiving member and inserting the projection into the groove, and connecting the receiving member and the inserting member by separating the projection from the groove. It will be canceled. Therefore, it is not necessary to provide a member for connecting or disconnecting the receiving member and the inserting member on the front surface side of the receiving member. Therefore, there are less restrictions on the shape and size of the outer shape of the receiving member, so that the degree of freedom in designing the outer shape of the clasp can be secured. In addition, since the protruding portion advances along the groove portion, the direction and distance in which the receiving member and the inserted inserting member relatively move are regulated, so by forming the groove portion into a predetermined shape, The receiving member and the inserting member can be connected at a predetermined position. Further, in the insertion member, since the groove portion into which the projection portion of the receiving member enters is formed, compared with the configuration in which the groove portion is provided in the receiving member and the projection portion that enters the groove portion is formed in the insertion member. Since the outer shape of the member is small, the clasp can be formed thin.

Further, according to the first aspect of the invention, the protrusion is guided to the locking portion along the groove and locked by the locking portion, so that the projection can be easily locked by the locking portion. .. Further, when the protrusion is locked to the locking part, the locking part 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 if an external force acts in the direction, the protrusion and the wall surface of the locking portion are in a state of being in stronger contact with each other, and the locking of each other is not released. Therefore, it is possible to more reliably maintain the connection state of the clasp and prevent the connection from being accidentally released.

Further, according to the first aspect of the present invention, by inserting the inserting member into the receiving member, the protrusion enters into the groove through the release portion, and the inserting member is separated from the receiving member in a direction opposite to the inserting direction. By this, the protruding portion is separated from the groove portion via the release portion. Therefore, the clasp can be connected or disconnected by simply operating the insertion member in the insertion direction or in the direction opposite to the insertion direction.

A second aspect of the invention devised to solve the above problem is formed from the distal end portion of the insertion member toward the base end side to the groove portion, and the projection is slid from the distal end portion of the insertion member to the release portion. It is characterized in that it has a guide part for guiding by the guide part, and the guide part is formed for each of the release parts.

According to the second aspect, when the inserting member is inserted into the receiving member, the protrusion is guided from the tip of the inserting member to the releasing portion by the guide portion. Therefore, when the insertion member is inserted into the receiving member, it is possible to insert the insertion member without aligning the release portion and the protrusion.

A third aspect of the invention devised to solve the above-mentioned problem is that the guide portion is the insertion member according to the above-mentioned second aspect, in which a pair is provided for each release portion and each of the pair of guide portions is a protrusion. It is characterized in that the portions are formed so that the sliding distances thereof are different from each other.

According to the third aspect of the invention, one of the pair of guide portions has a sliding distance shorter than the other, and has a large inclination angle with respect to a plane orthogonal to the insertion direction to form a steep slope. Therefore, since 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, and thus the protrusion is directed in the insertion direction. You can proceed smoothly. In particular, even if it is not possible to secure a sufficient length in the insertion direction of the guide portion, the configuration of one guide portion described above provides a guide portion having a short sliding distance and a steep slope. You can 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 fourth invention devised to solve the above problem is a clasp including a receiving member and an inserting member inserted into the receiving member from its tip, the receiving member being provided inside thereof. The inserting member has a plurality of groove portions formed on the surface thereof, and the groove portion has a protrusion portion provided inside the receiving member and guides the protrusion portion along the groove portion. A locking portion that restricts the traveling direction of the protrusion to prevent the protrusion from moving in the insertion direction and locks the protrusion, and a protrusion formed at the tip in the insertion direction and entering the groove of the protrusion. A release portion formed so as to be able to be detached from the groove portion, and a plurality of folding portions that prevent the protrusion portion from advancing in a direction opposite to the insertion direction and advance the protrusion portion in a direction different from the entering direction, has, folded portion of the multiple passes through a first fold-back portion is advanced toward the protruding portion to the engagement portion, the first turning portion and the locking portion have a different fold-back portion and the first folded portion enters A second folded portion that advances the protruding portion toward the release portion, and the first folded portion and the second folded portion are provided on the base end side of the insertion member with respect to the locking portion, The first folded-back portion and the second folded-back portion are respectively provided in the middle of different grooves connecting the same release portion and the same locking portion in the groove portion, and the groove portion has a projection portion that has entered from the release portion, The first folded portion, the locking portion, and the second folded portion are guided in this order to be separated from the groove portion via the release portion that has passed when entering the groove portion, and the release portion that passes when the protrusion portion enters the groove portion. It is characterized in that the projecting portion is formed so as to be the same as the release portion through which the projecting portion separates from the groove portion.

According to the fourth aspect of the invention, the protrusion enters and leaves the groove through the same release portion. Therefore, the relative positions of the receiving member and the inserting member are the same when the protrusion enters the groove and when the protrusion separates from the groove. In other words, even if the insertion member advances or retreats in the insertion direction with respect to the receiving member due to the projection being guided by the groove, or is configured to rotate relatively, the projection until the projection separates from the groove The position of the insertion member with respect to the receiving member returns to the original position in the course of the movement of the part. Therefore, it is possible to prevent the receiving member and the inserting member from being twisted from each other due to the relative positions of the receiving member and the inserting member being different at the time of connection and disconnection.

A fifth invention devised to solve the above problem is the clasp of the fourth invention, characterized in that a plurality of protrusions are provided.

A sixth invention devised to solve the above-mentioned problems is the clasp according to any one of the above-mentioned first to fifth inventions, wherein the inserting member is relative to the main body of the inserting member. A rotator that is rotatably supported and has a rotation axis parallel to the insertion direction,
The groove portion is formed on the outer peripheral surface of the rotating portion.

According to the sixth aspect , the main body of the inserting member rotates together with the rotating part even when the rotating part rotates relative to the receiving member due to the protrusion moving along the groove. It can be configured not to. Therefore, when the clasp is connected and released, the user grips and operates the main body and the receiving member to operate the main body and the receiving member, even if the rotating unit rotates. Since the relative rotation is suppressed, the operation for connecting and disconnecting the clasp can be performed easily and reliably.

A seventh invention devised to solve the above problems is an accessory, and is characterized by having a clasp according to any one of the above first to sixth inventions .

According to the seventh aspect of the present invention, it is possible to provide a clasp including the inserting member and the receiving member described above in the form of an accessory.

As a reference, in the above-described clasps according to the first to sixth inventions, the receiving member has a biasing member that biases the inserted inserting member in a direction opposite to the inserting direction. Has a flat surface portion parallel to a direction orthogonal to the insertion direction at an end portion in the direction opposite to the insertion direction, and the insertion member contacts the flat surface portion formed at the tip end portion in the insertion direction. The contact portion is formed in a conical shape with the apex portion facing the insertion direction side, and the apex portion on the rotation axis when the inserted inserting member rotates relative to the receiving member. The configuration that a part is formed may be applied. The clasp having such a configuration has the following effects.

That is, since the biasing member is included, the operation for separating the insertion member from the receiving member can be easily performed by using the biasing force of the biasing member. Further, even when the locking portion is provided in the groove portion, the protrusion can be easily guided to the locking portion by utilizing the biasing force, and the locking of the protrusion portion in the locking portion can be easily released. Can be prevented. Further, by having the flat portion and the contact portion that are in contact with each other, the biasing force of the biasing member can be reliably transmitted to the insertion member via the flat portion and the contact portion. Furthermore, when the clasp is connected or disconnected, even if the tip end portion of the insertion member in the insertion direction rotates relative to the biasing member, the insertion member and the biasing member are Since the area of the abutting surfaces of each other is reduced, the occurrence of friction caused by rotation is suppressed. Therefore, the operation of connecting or disconnecting the clasp can be easily performed.

According to the present invention, it is possible to provide a clasp capable of ensuring the degree of freedom in designing the outer shape with less restrictions on shape and size, and an accessory having such a clasp.

It is a schematic side view which shows an example of the clasp which concerns on 1st Embodiment. The clasp insertion member of FIG. 1 is shown, (a) is sectional drawing which followed the BB line of FIG. 1, (b) It is sectional drawing which followed the CC line of FIG. It is a perspective view of the principal part which shows the insertion member of the clasp of FIG. FIG. 3 is a development view of a main part of the clasp insertion member of FIG. 1. The clasp receiving member of FIG. 1 is shown, (a) is sectional drawing which followed the DD line of FIG. 1, (b) is the front view seen in the insertion direction. It is a schematic partial cross section figure which shows the connection operation of the clasp of FIG. It is a development view of a main part showing an example of a clasp according to the second 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 development view which shows an example of the clasp which concerns on 4th Embodiment. It is a side view of an important section showing an example of an accessory concerning a 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. Further, in order to explain the following embodiments, the scale is appropriately changed and expressed by enlarging or emphasizing a part in the drawings. In the drawings, the insertion direction in which the insertion member inserts into the receiving member is referred to as the A direction, the arrow direction in the drawing is the + direction, and the opposite direction to the arrow direction is the-direction. Will be described.

<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 has an inserting member 10 and a receiving member 20. The insertion member 10 can be inserted into the receiving member 20. Further, the insertion member 10 and the receiving member 20 can be connected to each other and can be disconnected from each other. The clasp 100 is used, for example, as a connector for annular accessories such as necklaces and bracelets.

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

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

The contact portion 13 is arranged at the tip 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 comes into contact with the flat surface portion 27a of the receiving member 20 (see FIG. 6). The flat surface portion 27a will be described later. The contact portion 13 is formed so that the cross-sectional shape in the direction orthogonal to the insertion direction A is circular. The contact portion 13 is arranged on the +A side of the support portion 14. The cross-sectional area of the contact portion 13 in the direction orthogonal to the insertion direction A is, for example, larger than the cross-sectional area of the support portion 14 and the 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. This prevents the rotating portion 12 supported by the support portion 14 penetrating from coming off the support portion 14.

The support portion 14 is disposed on the base end side (−A side) of the contact portion 13 and the tip end side (+A side) of the grip portion 15. The support portion 14 is a portion that supports the rotating portion 12 so as to be rotatable relative to the main body portion 11. The support portion 14 is formed in a columnar shape extending in the insertion direction A, and is disposed so as to penetrate the through hole 12 a of the rotating portion 12.

The grip portion 15 is disposed on the base end side (−A side) of the support portion 14 and the tip end side (+A side) of the pressing portion 16. The grip portion 15 is a portion that can be gripped by the user when guiding the insertion member 10 to the insertion opening 21 of the receiving member 20. The grip portion 15 is formed in a cylindrical shape having an outer diameter substantially the same as that of the rotating portion 12 and extending in the insertion direction A, and slides along 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 inserting member 10 is inserted into the receiving member 20, the inserting portion 10 moves forward and backward while the grip portion 15 is guided by the inner wall surface 22 of the receiving member 20. Therefore, 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 arranged on the base end side (−A side) of the grip portion 15. The pressing portion 16 is a portion that can be pressed by the user in the insertion direction (+A direction) when the insertion member 10 and the receiving member 20 are connected and disconnected. Even when the inserting member 10 is inserted into the receiving member 20, the pressing portion 16 is formed so 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 preferably has a flat surface or a curved surface in order to facilitate pressing.

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

The rotating portion 12 is held so as to be rotatable relative to the main body portion 11. The rotating portion 12 has a rotation axis R parallel to the insertion direction A. The rotating portion 12 has a substantially circular cross section in a direction orthogonal to the inserting direction A, and has a through hole 12a formed so that the supporting portion 14 can penetrate therethrough and extend in the inserting direction A. ing. The support portion 14 is fitted into the through hole 12a. As a result, movement of the rotation axis R of the rotation section 12 in a direction orthogonal to the insertion direction A that occurs when the rotation section 12 rotates relative to the support section 14 (radial deflection of the rotation axis R). 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 numeral in the drawing is the insertion direction A. As shown in FIGS. 3 and 4, the rotating portion 12 has a guide portion 30 and a groove portion 40. The guide portion 30 and the groove portion 40 are formed on the outer peripheral surface of the rotating portion 12.

The guide portion 30 is formed from the front end portion (the end portion on the +A side) of the rotating portion 12 in the insertion direction to the groove portion 40. The guide portion 30 is formed in a concave shape with respect to the surface of the rotating portion 12, and is formed so that the protrusion portions 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 protrusions 23 and 24 are slidable from the tip end side (+A side) of the insertion member 10 to release portions 31 and 32 described later. The guide portion 30 regulates the traveling direction of the protrusions 23, 24 by sliding the protrusions 23, 24 and guides the protrusions 23, 24 to the release portions 31, 32.

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

The groove portion 40 is formed in a groove shape, and like the guide portion 30, is formed so that the protrusion portions 23 and 24 provided inside the receiving member 20 enter. The groove 40 has a guide path structure that guides the protrusions 23 and 24 by sliding them along the groove 40 when the protrusions 23 and 24 enter. With such a configuration of the groove 40, the traveling directions of the protrusions 23 and 24 are regulated. As shown in FIG. 4, the groove portion 40 has release portions 31, 32, locking portions 33, 34, and folded portions 35, 36, 37, 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 connects the protrusions 23 and 24 from the release portions 31 and 32 to the locking portions 33 and 34 or the locking portions 33 and 34. It guides from 34 to the release parts 31 and 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 40 is formed in a substantially W shape that connects the release parts 31 and 32, the folded parts 35 to 38, and the locking parts 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 further bends to the opposite side of the insertion direction A (−A side). ) And extending in the direction inclined with respect to the insertion direction A (the direction of arrow G) up to the folded-back portions 35, 37, and from the folded-back portions 35, 37 toward the insertion direction side (+A side). Moreover, the locking portions 33 and 34 are formed so as to extend in a direction (direction of arrow I) inclined with respect to the insertion direction A. On the other hand, the path from the locking portions 33, 34 to the releasing portions 31, 32 is inclined from the locking portions 33, 34 toward the opposite side (−A side) of the insertion direction A and with respect to the insertion direction A. In the direction (arrow K direction), the folding parts 36 and 38 are formed, and from the folding parts 36 and 38, the direction (arrow M) is inclined toward the insertion direction side (+A side) and with respect to the insertion direction A. Direction), further bends, extends in the insertion direction A, and is formed up to the release portions 31 and 32. The protrusions 23 and 24 are formed so as to advance along the groove 40 only in the above order. That is, the traveling directions of the protrusions 23 and 24 moving in the groove portion 40 are one-way and are formed so as not to travel in the opposite direction. Details of the action of the groove portion 40 to guide the protrusions 23 and 24 and the configuration of the groove portion 40 will be described later.

The release portions 31 and 32 are formed at the ends of the groove 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 by advancing along the insertion direction A. Formed in. The releasing portions 31 and 32 are arranged at positions corresponding to the positions of the protrusions 23 and 24, and two releasing portions 31 and 32 are formed in the groove portion 40. Each of the two release parts 31 and 32 is arranged in a relative positional relationship of 180 degrees on the circumference of the rotation part 12 around the rotation axis R. Further, when the clasp 100 is connected, each of the two releasing portions 31 and 32 causes one of the two protruding portions 23 and 24 (for example, the protruding portion 23) to enter the groove portion 40 to connect the clasp. When released, the other protrusion (for example, the protrusion 24) is configured to be separated from the groove 40. That is, the release portions 31 and 32 that pass when the protrusions 23 and 24 enter and the release portions 31 and 32 that pass when the protrusions 23 and 24 separate from the groove 40 are formed so as to be different. There is. For example, the protrusion 23 passes through the release portion 31 when entering the groove 40, and passes through the release portion 32 instead of the release portion 31 when leaving the groove 40.

The locking portions 33, 34 are provided to lock the protrusions 23, 24 in the groove 40. The locking portions 33, 34 have locking surfaces 33a, 34a on the insertion direction side (+A side) with which the protrusions 23, 24 abut. Due to such a configuration in which the protrusions 23 and 24 abut on the locking surface, the force is applied to the insertion member 10 inserted in the receiving member 20 in the direction opposite to the insertion direction A, that is, in the direction in which they are separated from each other. When is applied, the protrusions 23 and 24 locked to the locking portions 33 and 34 come into contact with the locking surfaces 33a and 34a. In this way, the locking surfaces 33a and 34a serve as barriers to the movement of the protrusions 23 and 24 in the direction of disconnection, so that a force is applied to the connected clasps 100 in the directions of separating from each other. Also, 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, 34 are arranged at positions corresponding to the positions of the protrusions 23, 24, and two locking portions 33, 34 are formed in the groove portion 40.

The folded-back portions 35 to 38 are portions of the groove 40 that prevent the protrusions 23 and 24 from advancing in the direction opposite to the insertion direction A and allow the protrusions 23 and 24 to advance in a direction different from the approach direction. is there. The folded-back portions 35 to 38 are formed in a substantially V-shape having a vertex side in a direction opposite to the insertion direction A (as viewed from a direction orthogonal to the insertion direction A) in a side view. Four of the folded 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 inserting member 10 has been described above, the inserting member 10 is not limited to the above-described configuration. For example, the insertion member 10 may have a shape other than the rod shape extending in the insertion direction A. Further, the main body 11 of the insertion member 10 is not limited to be integrally formed, and may be formed by combining a plurality of members, for example. Further, each of the rotating portion 12, the contact portion 13, the supporting portion 14, the grip portion 15, and the pressing portion 16 may not be provided in the insertion member 10. When the rotary member 12 is not provided in the insertion member 10, the groove 40 and the guide unit 30 may be formed on the surface of the main body 11 instead of the rotary unit 12. Further, in this case, the function of the support portion 14 that rotatably supports the rotating portion 12 may be configured such that the grip portion 15 and the pressing portion 16 are provided. Further, in the case where the pressing portion 16 is not provided in the insertion member 10, and the insertion member 10 is fixed or abutted to another member such as a decorative portion 2 (see FIG. 10) described later, and the like. In the case of being configured integrally with the member, the other member may be made to function as a pressing portion, and the other member may be pressed by the operation of the user when the clasp is connected. In this case, the end portion of the insertion member 10 on the −A side may be inserted into the decorative portion 2.

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

The contact portion 13 may be provided in the rotating portion 12 instead of the main body portion 11, for example. The support portion 14 may have a configuration other than the above as long as the support portion 14 supports the rotating portion 12 so as to be rotatable relative to the main body portion 11. Further, the grip 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 advancing and retracting along the insertion direction A.

Whether or not the mounting hole 16a is provided in the insertion member 10 is arbitrary. Further, the mounting hole 16 a may be provided in, for example, the grip portion 15 instead of being provided in the pressing portion 16. Further, instead of the configuration in which the mounting hole 16a is provided in the main body 11, a configuration of an annular mounting ring provided outside the main body 11 may be used. In this case, the attachment ring may be provided so as to project from the central portion of the end face of the pressing portion 16 on the base end side (−A side).

Further, the groove portion 40 is not limited to the shape described above. 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 forming the releasing portions 31, 32 and the engaging portions 33, 34 is not limited to two, and may be one or three or more. Further, the number of the folded portions 35 to 38 formed is not limited to four, and can be increased or decreased as appropriate according to the number or shape of the release portions 31 and 32 or the locking portions 33 and 34. Further, the groove 40 may be configured without the locking portions 33 and 34.

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

5: shows the receiving member 20, (a) is sectional drawing which followed the DD line of FIG. 1, (b) is the front view seen in the insertion direction. As shown in FIG. 5A, the receiving member 20 has a tubular portion 25, a bottom portion 26, protrusions 23 and 24, and a biasing member 27.

The tubular portion 25 is formed such that the insertion member 10 can be inserted and removed in the insertion direction A. The tubular portion 25 is formed in a cylindrical shape extending in the insertion direction A, and the insertion port 21 is provided at the end portion in the direction (−A direction) opposite to the insertion direction A. However, the tubular portion 25 may have a tubular shape other than the cylindrical shape. The shape and size of the insertion port 21 are not particularly limited, but it is desirable that the insertion port 21 is formed to have a size slightly larger than the outer diameter size of the insertion member 10.

The bottom portion 26 is provided at the end portion of the tubular portion 25 on the insertion direction side (+A side) 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 mounting 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. An annular member 4 (see FIG. 10) connected to, for example, the end of the decorative portion 2 is connected to the mounting ring 28. Note that the connection between the receiving member 20 and other members such as the decorative portion 2 is not limited to the connection through the mounting ring 28, and it is optional whether or not the receiving member 20 is provided with the mounting ring 28. The receiving member 20 may be arranged so as to be fixed or abutted on the surface of the end portion of the decorative portion 2, for example. In this case, the end of the receiving member 20 on the insertion direction side (+A side) may be inserted into the decorative portion 2.

The protrusions 23 and 24 are provided inside the tubular portion 25, and are formed so as to project inward from the inner wall surface 22 of the tubular portion 25. The protrusions 23 and 24 each have a cylindrical shape of the same size, and are fixed to the inner wall surface 22 of the tubular portion 25. However, the protrusions 23 and 24 are not limited to the above-described configuration, and may have, for example, different shapes or sizes, may have a conical shape, a prismatic shape, or the like, and may protrude from the inner wall surface 22 inward. 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 on the circumference of. Further, the protrusions 23 and 24 are arranged, for example, so that the straight line connecting the protrusions 23 and 24 is parallel to the plane orthogonal 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 (-A direction) opposite to the insertion direction A. As shown in FIG. 5A, the urging member 27 is housed in the tubular portion 25 and is arranged between the bottom portion 26 and the protruding portions 23, 24. The biasing member 27 has a flat surface portion 27a that is parallel to the direction orthogonal to the insertion direction A at the end portion in the direction (-A direction) opposite to the insertion direction A. The flat surface portion 27a is formed in a disc shape, for example. When the insertion member 10 is separated from the receiving member 20, the insertion members 10 are in contact with the surfaces of the protrusions 23 and 24 on the insertion direction side (+A side). On the other hand, when the insertion member 10 is inserted into the receiving member 20, the flat surface portion 27a comes into contact with the contact portion 13 and is further pushed, and moves inside the tubular portion 25 in the insertion direction A (FIG. 6). The flat surface portion 27a in a state where the insertion member 10 is separated from the receiving member 20 may be formed so as to be in a separated state without abutting against the protrusions 23 and 24.

Note that the receiving member 20 is not limited to the above configuration. For example, one or both of the tubular portion 25 and the bottom portion 26 may not be provided in the receiving member 20. In this case, for example, instead of the tubular portion 25 and the bottom portion 26, a configuration of a housing into which the inserting member 10 can be inserted and the protrusions 23 and 24 are provided may be adopted. Further, the protrusions 23 and 24 are not limited to the above configuration, and for example, one or three or more may be provided. Further, the protrusions 23 and 24 are provided inside the tubular portion 25, but may be provided at the tip portion (the end portion on the −A side) in the direction opposite to the insertion direction A of the tubular portion 25. Also, the biasing member 27 may not be provided in the receiving member 20. Further, the biasing member 27 is not limited to the configuration having the coil spring functioning as the biasing means and the disc functioning as the flat surface portion 27a. As the urging member 27, for example, an elastic body other than the coil spring may be used as the urging means, and a plate-shaped member other than a circular shape may be used as the flat surface portion 27a. An integrated member may be adopted.

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

When connecting the inserting member 10 and the receiving member 20 to each other, the user inserts the inserting member 10 into the receiving member 20 in a state of holding the grip portion 15 and the receiving member 20 of the inserting member 10, respectively. Then, the inserting member 10 is inserted from the distal end side into the receiving member 20 through the insertion opening 21, and the contact portion 13 is brought into contact with the flat surface portion 27a. Further, the user presses the pressing portion 16 of the insertion member 10 in the insertion direction A against the urging force of the urging member 27, so that 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 by the guide portion 30 to the release portions 31 and 32, respectively. At that time, the protrusions 23 and 24 slide with respect to the guide portion 30 like a cam operation, 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 together with the rotating portion 12. Therefore, even if the rotating portion 12 rotates, friction does not occur between the flat surface portion 27a and the contact portion 13, so that the rotating portion 12 can be smoothly rotated.

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

The protrusion 23 that has entered the groove 40 advances in the direction (-A direction) opposite to the insertion direction A (see arrow F). When the protrusion 23 comes into contact with the first guide surface S1, the protrusion 23 changes its traveling direction and moves in the direction of arrow G while sliding along the first guide surface S1. The first guide surface S1 is formed so as to be inclined with respect to the insertion direction A, and is provided to slide the protrusion 23 and guide it to the folded portion 35. Here, when viewed in the insertion direction A, the width (distance in the direction orthogonal to the insertion direction A) W1 of the first guide surface S1 is equal to the width of the release portion 31 (release in the direction orthogonal to the insertion direction A). The distance W2 is included. Therefore, the protrusion 23 that advances in the direction of the arrow F (−A direction) in FIG. 4 is surely brought into contact with the first guide surface S1, and the protrusion 23 is brought into the folded portion 35 by the first guide surface S1. Can be induced.

When the user loosens the pressure on the insertion member 10 after the protrusion 23 reaches the folded-back portion 35, the protrusion 23 is pushed toward 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 S2 is formed so as to be inclined with respect to the insertion direction A, and is provided to slide the protrusion 23 and guide it to the locking portion 33. Here, the second guide surface S2 is formed so that the width W3 includes the outer peripheral apex T1 of the folded portion 35 when viewed in the insertion direction A. Therefore, the projection 23 that advances in the direction of the arrow H (+A direction) in FIG. 4 is surely brought into contact with the second guide surface S2, and the projection 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 urging force of the urging member 27 (see arrow I), and is locked by the locking portion 33. When the protrusion 23 is locked, the wall surface in the +A direction serves as a barrier to prevent the protrusion 23 from moving in the insertion direction A. Therefore, even if an external force acts in a direction in which the inserting member 10 and the receiving member 20 connected to each other are separated from each other, the mutual connection is not released. With the above, the connection of the clasp 100 is completed.

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

When the protrusion 23 comes into contact with the third guide surface S3, the protrusion 23 changes its traveling direction and moves in the direction of 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 to slide the protrusion 23 and guide it to the folded portion 36. Here, the third guide surface S3 is formed so that the width W4 includes the outer peripheral apex T2 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 in FIG. 4 (-A direction) is surely 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 the part 36.

When the user loosens the pressure on the insertion member 10 after the protrusion 23 reaches the folded-back portion 36, the protrusion 23 is pushed in the insertion direction (+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 to slide the protrusion 23 and guide the protrusion 23 to the release portion 32. Here, the fourth guide surface S4 is formed such that the width W5 includes the outer peripheral apex 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 projecting portion 23 receives the biasing force of the biasing member 27 and reaches the position on the front side (−A side) of the release portion 32 along the fourth guide surface S4 (see arrow N). Further, the protruding portion 23 advances in the +A direction, separates from the groove portion 40 via the release portion 32, and enters the guide portion 30 (see arrow O). After that, the protrusion 23 advances in the +A direction by the urging force of the urging member 27 and separates from the guide portion 30. Then, by pulling out the inserting member 10 from the receiving member 20, the mutual connection is released.

Although the operation of the 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 the same as above. It is the same. When the clasp 100 is connected, one protrusion (for example, the protrusion 23) enters the groove 40 through the release portion 31, and the other protrusion (for example, the protrusion 24) passes through the release portion 32. Enter the groove 40. Then, when the connection of the clasp 100 is released, the one projection portion (for example, the projection portion 23) is separated from the groove portion 40 through the release portion 32, and the other projection portion (for example, the projection portion 24) is removed. It separates from the groove portion 40 via the release portion 31.

According to the clasp 100 of the present embodiment as described above, the clasp 100 can be simply inserted into the receiving member 20 without performing circumferential alignment and then pressed in the insertion direction A. 100 connections are possible. Moreover, the connection of the clasp 100 can be released only by pressing the inserting member 10 against the receiving member 20 in the inserting direction A and further pulling it out. That is, the user can connect and disconnect the clasp 100 by such a simple operation. Further, since the guide portion 30 and the groove portion 40 are provided in the rotating portion 12, even if the rotating portion 12 rotates due to the protrusions 23 and 24 sliding on the guide portion 30 and the groove portion 40, the inserting portion is not inserted. Since the main body 11 of the member 10 does not rotate, the user's fingers holding the insertion member 10 do not twist. Therefore, the user can easily connect and disconnect the clasp 100. Furthermore, since it is not necessary to provide a member for connecting or disconnecting the insertion member 10 and the receiving member 20 on the front surface side of the receiving member 20, there are restrictions 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 development view in which the outer peripheral surface of the rotating portion 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, the parts 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 200 according to this embodiment includes an insertion member 210 and a receiving member 20. The inserting member 210 has a rotating portion 212. As shown in FIG. 7, the rotating part 212 has a guide part 230 and a groove part 240. The guide portion 230 and the groove portion 240 are formed on the surface of the rotating portion 212. The guide portions 230a and 230b have the same configuration as the guide portions 30a and 30b according to the first embodiment.

The path of the groove portion 240 connects the releasing portions 231, 232, the folding portions 235, 236, 237, 238, and the locking portions 233, 234, similarly to the groove portion 40 described above. However, unlike the groove portion 40, the groove portion 240 is different from the groove portion 40 in that the releasing portions 231 and 232 into which the protruding portions 23 and 24 enter and the releasing portions 231 and 232 through which the protruding portions 23 and 24 pass when the protruding portions 23 and 24 separate from the groove portion 240. And are the same. That is, for example, the protruding portion 23 enters the groove portion 240 via the releasing portion 231, and separates from the groove portion 240 via the same releasing portion 231. The groove portion 40 has fifth to eighth guide surfaces S5 to S8 on which the protrusions 23 and 24 slide.

Next, the operation of connecting 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) advances in the direction opposite to the insertion direction A (−A direction) (see arrow Q). Then, the protrusion 23 contacts the fifth guide surface S5 to change the traveling direction. The fifth guide surface S5 is provided to slide the protrusion 23 and guide it to the folded-back 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. It The +A direction end portions 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 distance W6 between the ends of the pair of fifth guide surfaces S5 in the +A direction is larger than the width W7 of the release portion 231, and the distance W6 includes the width W7 when viewed in the insertion direction A. Is formed in. Therefore, when the protrusion 23 advances in the −A direction via the release portion 231, the protrusion 23 is smoothly guided to the fifth guide surface S5. Then, the protruding portion 23 is guided to the folding portion 235 while sliding on the fifth guide surface S5 (see arrow S).

When the user loosens the pressure on the insertion member 10 after the protrusion 23 reaches the folded-back portion 235, the protrusion 23 is pushed in the insertion direction (+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 S6 is formed to be inclined with respect to the insertion direction A, and is provided to slide the protrusion 23 and guide it to the locking portion 233. Here, the sixth guide surface S6 is formed so that the width W8 includes the outer peripheral apex T4 of the folded portion 235 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 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 (see arrow U) while sliding on the sixth guide surface S6 by the biasing force of the biasing member 27, and is locked by the locking portion 233. When the protrusion 23 is locked, the wall surface in the +A direction serves as a barrier to prevent the protrusion 23 from moving in the insertion direction A. Therefore, even if an external force acts in a direction to separate the insertion member 210 and the receiving member 20 according to the present embodiment, which are connected to each other, the mutual connection is not released. With the above, the connection of the clasp 100 is completed.

Next, the operation of releasing the clasp connection of this embodiment will be described. First, the user presses the insertion member 210 in the insertion direction (in the +A direction). As a result, in the groove 240, the protrusion 23 separates from the locking portion 233 and moves in the −A direction (see arrow V).

When the protrusion 23 comes into contact with the seventh guide surface S7, the protrusion 23 changes its traveling direction and moves to the folding portion 236 while sliding along the seventh guide surface S7 (see arrow W). The seventh guide surface S7 is provided to slide the protrusion 23 and guide the folded portion 236. Here, the seventh guide surface S7 is formed so that the width W9 includes the outer peripheral apex T5 of the locking portion 233 when viewed in the insertion direction A. Therefore, the protrusion 23 that advances from the locking portion 233 in the −A direction 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 protrusion 23 reaches the folded-back portion 236, the protrusion 23 is pushed in the insertion direction (+A direction) by the biasing force of the biasing member 27, The protrusion 23 contacts the eighth guide surface S8. The eighth guide surface S8 is provided to slide the protrusion 23 and guide it to the release portion 231, and a pair of the eighth guide faces S8 are arranged so as to sandwich the protrusion 23 from a direction orthogonal to the traveling direction. The width W10 of the −A side end of the pair of eighth guide surfaces S8 is formed so as to include the outer peripheral apex T6 of the folded portion 236 when viewed from the insertion direction (A direction). Therefore, when the protruding portion 23 is separated from the folding portion 236 in the +A direction, it is guided to the eighth guide surface S8 as it is. Then, the protruding portion 23 is guided to the front side (−A side) of the release portion 231 while sliding on the eighth guide surface S8 (see arrow X).

Next, the protrusion 23 advances in the +A direction and separates from the groove 240 via the release portion 231 (see arrow Y) and enters the guide portion 230 (see arrow Z). After that, the protrusion 23 further advances in the +A direction and separates from the guide 230. Since the urging force of the urging member 27 acts on the protrusion 23, the protrusion 23 can be formed by the arrow X in FIG. 7 even if the user does not perform an operation such as pulling the clasp 200. It moves smoothly along arrow Y and arrow Z. Then, by pulling out the inserting member 210 from the receiving member 20, the mutual connection is released.

The operation of the protrusion 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 connecting and disconnecting the clasp 200 according to the present embodiment have been described above. The same applies to the operation of the other protruding portion 24 and the operational effects of the releasing portion 232, the locking portion 234, and the folding portions 237 and 238.

<Third Embodiment>
Subsequently, a third embodiment will be described with reference to FIG. FIG. 8 is a side view of essential parts showing an example of the clasp 300 according to the present embodiment. In the following description, the parts 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 the description thereof will be omitted or simplified.

The clasp 300 according to the present embodiment has 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 rotating portion 312. The rotating portion 312 has a contact portion 313. The contact portion 313 is formed in a pointed shape with the apex facing the insertion direction side (+A side), and has the apex portion 313a. The apex portion 313 a is arranged on the rotation axis R when the inserted inserting member 310 rotates relative to the receiving member 20. The contact portion 313 has a conical shape, but is not limited to this, and may have a polygonal pyramid shape or a thin rod shape.

According to the present embodiment, even when the rotating part 312 rotates relative to the receiving member 20 when connecting and disconnecting the clasp 300, the inserting member 310 and the flat surface part 27a. (See FIG. 5(b)) Since the area of the contact surface with each other is minimized and the displacement of the position of the contact portion 313 caused by the rotation is prevented, it is possible to reduce the occurrence of friction caused by the rotation. .. Therefore, the operation of connecting the clasp 300 and the operation of releasing the connection can be performed more easily.

<Fourth Embodiment>
Subsequently, a fourth embodiment will be described with reference to FIG. FIG. 9 is a developed view of the main part showing an example of the clasp according to the present embodiment, and is a developed view in which the outer peripheral surface of the rotating part 12 is extended in a planar shape, as in FIGS. 4 and 7. Note that in FIG. 9, the guide portion 30 is also shown in order to facilitate comparison between the guide portion 430 and the guide portion 30. In the following description, parts 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 this embodiment includes an insertion member 410 and a receiving member 20. As shown in FIG. 9, the rotating portion 412 of the insertion member has a guide portion 430 and a groove portion 40. A pair of guide portions 430 is provided for each of the two release portions 31 and 32. Further, each of the pair of guide portions 430 is formed such that the distances over which the protrusions 23 and 24 slide are different from each other. That is, the sliding distance L3 of one guide portion 430a of the pair of guide portions 430 is different from the sliding distance L4 of the other guide portion 430b, and the sliding distance L3 is formed shorter than the sliding distance L4. Has been done. With such a configuration, the inclination angle of the one guide portion 430a with respect to the plane orthogonal to the insertion direction A is formed to be large. Focusing on the slope shape of the one guide portion 430a, the distance that the protrusions 23 and 24 slide is shorter than that of the guide portions 30a and 30b according to the first embodiment, and the one in the insertion direction A. A large inclination angle is formed with respect to a plane parallel to the orthogonal direction to form a steep slope.

According to such a configuration of the guide portion 430 having a steep slope, the projections 23 and 24 slide along the one guide portion 430a described above, so that the resistance received from the sliding surface is reduced. Therefore, it is possible to smoothly advance in the insertion direction (+A direction) while guiding the protrusions 23 and 24.

<Fifth Embodiment>
Next, the fifth embodiment will be described with reference to FIG. FIG. 10: is a principal part side view which shows an example of the accessory 1 of this embodiment. In the following description, components that are the same as or equivalent to those in the first embodiment will be assigned the same reference numerals and description thereof will be omitted or simplified. As shown in FIG. 10, the accessory 1 is, for example, a ring-shaped accessory, and has a clasp 100, a decorative portion 2, and ring members 3 and 4.

The decorative portion 2 is formed by arranging a plurality of pearls in series. However, the decorative portion 2 is not limited to the above configuration, and may be configured by a chain or a string-shaped member, for example. The ring member 3 is connected to the mounting hole 16 a of the insertion member 10. The ring member 4 is connected to the mounting 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 clasp 100 (the receiving member 20) may be decorated on the surface, and in this case, as described above, the clasp 100 secures the degree of freedom in the design of the outer shape, and thus does not hinder the connection function of the clasp 100. Various designs can be adopted within a range. For example, the outer shape of the clasp 100 may be a key shape, and a tubular decorative member formed of jewelry such as onyx or amethyst may be arranged on the surface of the clasp 100.

The accessory 1 is not limited to the above configuration. For example, the accessory 1 may have a shape other than a ring shape. The accessory 1 may have a plurality of one or both of the clasp 100 and the decorative portion 2. Moreover, the accessory 1 may have one or both of the insertion member 10 and the receiving member 20, and in this case, the clasp 100 that constitutes the accelerator 1 includes, for example, two insertion ports 21 and two insertion members. It may have the receiving member 20 formed so that the plug-in members 10 can be connected. In addition, in the accessory 1, the clasp 100 and the decorative portion 2 may be connected to each other without one or both of the ring members 3 and 4, and in this case, one of the insertion member 10 and the receiving member 20. Alternatively, both of them may be integrally formed with the decorative portion 2 by being fixed or abutted to the end portion of the decorative portion 2.

Although the insertion member, the clasp, and the accessory of the present invention 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. For example, a part of the configuration of the above-described embodiment may be replaced with the configuration of another embodiment, or the configurations of the above-described embodiments may be combined.

Further, the application of the clasp of the present invention is not limited to the connecting means for connecting the chain or the decorative portion having the connected gems or the like, and alternatively, the pearl or the chain and the pendant head are connected. 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 fashion and taste of the user. Further, in the accessory of the present invention, the design of the pendant head may be adopted as the design of the outer shape of the clasp. Further, the application of 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 a connecting means for connecting the main body of the mobile phone and the strap. Further, the clasp of the present invention may be a multiple-type clasp by integrally joining a plurality of inserting members and a plurality of receiving members 20 on the inserting member side and the receiving member side, respectively.

A... Insertion direction R... Rotating shaft 1... Accessory 10, 210, 310, 410... Inserting member 11, 311... Main body part 12, 212, 312... Rotating part 13, 313... Abutting part 20... Receiving member
23, 24... Projection part 27... Biasing member 27a... Plane part
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... Apex

Claims (7)

A clasp comprising a receiving member and an inserting member inserted into the receiving member from its tip,
The receiving member has a plurality of protrusions provided inside thereof, including a first protrusion and a second protrusion,
The insertion member has a groove portion formed on its surface,
The groove is
The protruding portion enters, guides the protruding portion along the groove portion, and regulates the traveling direction of the protruding portion,
A plurality of release portions provided at the tip end portion in the insertion direction and formed so as to respectively allow the projection portion to enter and leave the groove portion, and to advance the projection portion in the insertion direction. A plurality of locking portions for preventing and locking the protrusions,
The plurality of release parts are a first release part through which the first protrusion passes when entering the groove, and a release part different from the first release part, and the first protrusion is the locking part. A second release portion that is passed when the lock portion is released from the groove portion after being released,
The plurality of locking portions include a first locking portion that locks the first protrusion portion and a second locking portion that locks the second protrusion portion,
It said first release portion is a groove communicating with both the prior SL first engagement portion and the second locking portion,
When the first protrusion enters the groove through the first opening, the second protrusion enters the groove through the second opening, and the first protrusion releases the second opening. It said second protrusion when disengaged from the groove through parts are formed so that be disengaged from said groove through said first release portion, clasp, characterized in that. A guide portion that is formed from the tip end portion of the insertion member toward the base end side to the groove portion, and guides the protrusion by sliding the projection portion from the tip end portion of the insertion member to the release portion;
The clasp according to claim 1, wherein the guide portion is formed for each of the release portions. The clasp according to claim 2, wherein a pair of the guide portions is provided for each of the release portions, and the pair of guide portions are formed so that distances along which the protrusions slide are different from each other. .. A clasp comprising a receiving member and an inserting member inserted into the receiving member from its tip,
The receiving member has a protrusion provided inside thereof,
The insertion member has a plurality of groove portions formed on its surface,
The groove is
The protrusion provided inside the receiving member enters and guides the protrusion along the groove to regulate the traveling direction of the protrusion,
An engaging portion that prevents the protrusion from advancing in the insertion direction and engages the protrusion, and a protrusion formed at the tip in the insertion direction of the protrusion into and out of the groove. Any of which is formed possible, and a plurality of folded-back portions for preventing the protrusion from advancing in a direction opposite to the insertion direction and for advancing the protrusion in a direction different from the entering direction. ,
The plurality of folded-back portions are a first folded-back portion for advancing the protrusion toward the locking portion, and a folded-back portion different from the first folded-back portion, the first folded-back portion and the locking portion. A second folded portion that advances the protruding portion that has entered through toward the release portion,
The first folded portion and the second folded portion are provided on the base end side of the insertion member with respect to the locking portion,
The first folded-back portion and the second folded-back portion are respectively provided in the grooves in different grooves connecting the same release portion and the same locking portion in the groove portion,
The groove portion guides the protruding portion that has entered from the release portion in the order of the first folded portion, the locking portion, and the second folded portion, and the released portion that has passed through when entering the groove portion. The release portion that is separated from the groove portion through the protrusion portion when the protrusion portion enters the groove portion and the release portion that the protrusion portion passes when the protrusion portion is separated from the groove portion are formed to be the same. The characteristic clasp. The clasp according to claim 4, wherein a plurality of the protrusions are provided. The insertion member includes a rotating portion that is rotatably supported relative to the main body of the insertion member and that has a rotation axis that is parallel to the insertion direction.
The clasp according to any one of claims 1 to 5, wherein the groove portion is formed on an outer peripheral surface of the rotating portion. An accessory comprising the clasp according to any one of claims 1 to 6.

Images