KR20080070544A - buckle - Google Patents

Abstract

The present invention includes a male member (A) and a female member (B). The male member includes a base portion 10, a pair of leg portions 20 protruding from the base portion, and a coupling portion 25 provided at each leg portion to be coupled to the female member. The base portion has a protrusion 14 protruding in the protruding direction of the leg portion, and a recess 15 is formed on the front and back surfaces of the protrusion. The recess 15 has an insertion direction front end 15A and an insertion direction rear end 15B of the male member A, the front end portion having substantially the same height as the surface of the base portion, and the rear end portion substantially the front end portion. It is formed lowest in the surface which connects and a rear end part.

Buckle, male member, female member, leg, protrusion

Description

Buckle {BUCKLE}

The present invention relates to a buckle having a male member and a female member. Specifically, the present invention relates to a buckle used for connecting and disconnecting both ends of one string-like member or two string-shaped members.

A buckle is used as a means for connecting and disconnecting both ends of one string member or two string members.

The conventional buckle consists of a plug and a socket, and the plug insertion hole of a socket and the base part of a plug are formed in a straight line shape, and the buckle which made the socket and plug abutment surface into a straight line form is common. On the other hand, in order to suppress the insertion guide function of a plug and the rattling after a plug insertion, the structure which provided the convex part and the recessed part which fit together in the butt | matching surface of a socket and a plug is proposed.

For example, in Document 1 (Japanese Patent Application Laid-Open No. 2005-305112), a center leg that protrudes toward the insertion direction is formed on the plug side at the mating surface of the socket and the plug, and the center of the plug side on the socket side. A buckle with a V-shaped cutout for receiving a leg is disclosed. The center leg is a triangular shape that is gradually narrowed as the width direction is directed to the insertion direction, and ribs having a thickness approximately equal to the thickness of the base (base of the plug) are formed along the outer circumference, and at the inner bottom thereof, a mesh shape is formed. The screen of is formed.

Document 2 (Japanese Patent Application Laid-Open No. 2002-101915) has a convex portion protruding toward the insertion direction on the plug side on the mating surface of the socket and the plug, and a concave portion accommodating the convex portion on the plug side on the socket side. A buckle formed is disclosed. The convex portion has a trapezoidal shape that gradually narrows as the widthwise dimension thereof faces the insertion direction, and the front and back surfaces are formed in a flat surface substantially the same as the front and back surfaces of the base portion (base portion of the foot) of the plug.

Conventional buckles generally use the fingers of one hand (thumbs, forefingers, middle fingers) to pin the sides of the plug in order to insert the plug into the socket and engage the fingers of the other hand (thumbs, forefingers, The middle finger is often used to pin the sides of the socket and insert the plug into the socket.

By the way, in the case of the buckle having the same shape as the above-mentioned Document 1 and Document 2, since the center leg and the convex part which are wide in the base part side of a plug, and protruded toward the insertion direction are formed in the contact surface of a socket and a plug, In some cases, this part (i.e., the front and back surfaces of the plug) is picked up and inserted into the thumb and forefinger.

However, it is difficult to pick up the front and back surfaces of the plug in the same shape as in Document 1 and Document 2 mentioned above.

For example, in the document 1, since the center leg is a configuration in which ribs having a thickness approximately equal to the thickness of the base are formed along the triangular outer circumference, the finger is hard to fit the finger. Is given.

Further, in the document 2, since the front and back surfaces of the convex portion are substantially the same flat surface as the front and back surfaces of the base portion (base portion of the foot portion) of the plug, the fingers are easily shifted from the base portion and are difficult to pick up at the correct position. There is a problem that it is easy to slip on.

The main object of the present invention is to solve such a problem and provide a buckle that is easy to pick up even when the front and back surfaces of the male member are picked up and operated.

The buckle of the present invention includes a male member, a female member into which the male member is inserted and coupled, and the male member includes a foundation portion on which a string member can be installed, a pair of legs protruding from the foundation portion, A coupling portion provided at each leg portion and coupled to the female member, the base portion having a protrusion protruding toward the protrusion direction of the leg portion from a side where the leg portion protrudes, and a concave portion is formed on the front and back surfaces of the protrusion portion; At least one of the concave portions has an insertion direction front end portion and an insertion direction rear end portion of the male member, the front end portion has substantially the same height as the front and back surfaces of the base portion, and the rear end portion is substantially the front end portion and the rear end portion. It is characterized by being formed lowest in the surface which connects a part.

Here, "the front end part has substantially the same height as the front and back surface of the said base part," means that the front end part has the substantially same height as the surface which comprises the front and back surface of a base part substantially. That is, "substantially the front and back surface of the said base part" means the uneven surface and thickness reduction in the case where the unevenness | corrugation of anti-slip etc. are formed in the front and back surface of the base part, the case of forming a thickness reducing hole (groove), etc. It does not include the bottom of the hole (groove).

Similarly, "the rear end is formed the lowest among the surfaces connecting the front end and the rear end substantially" means that the rear end is formed the lowest among the surfaces substantially forming the surface connecting the front end and the rear end. Say. In other words, the "substantially connecting the front end part and the rear end part" means the case where irregularities such as anti-slip or the like are formed on the surface connecting the front end part and the rear end part, or when a thickness reducing hole (groove) is formed. Etc., it does not include the uneven surface or the bottom surface of the thickness reducing hole (groove).

According to this configuration, when a pair of leg portions protruding from the base portion of the male member is inserted into the female member, the coupling portion provided in each leg portion is coupled to the female member, whereby the male member is coupled to the female member.

At the time of this insertion operation, since the protrusion part which protruded toward the protrusion direction of the leg part is formed in the base part of the male member, and the recess part is formed in the front and back surface of this protrusion part, when a finger is placed on this recess part, It is easy to pick up even if you pick and operate the handle.

In particular, at least one of the concave portions has an insertion direction front end portion and an insertion direction rear end portion of the male member, the front end portion has substantially the same height as the front and back surfaces of the base portion, and the rear end portion is substantially among the surfaces connecting the front end portion and the rear end portion. Since it is formed lowest, that is, the rear end portion is formed lower than the front end portion, when a finger is touched from the rear end in the insertion direction of the male member, the shape of the concave portion coincides with the bulge of the abdomen of the finger and is inserted into the male member with the finger. Even if the pushing force is applied in the direction, the finger is hardly displaced from the recess, and the insertion operation can be performed reliably.

In the buckle of the present invention, it is preferable that the female member has an enlarged opening for accommodating the protrusion in the insertion hole into which the male member is inserted.

According to this configuration, when the male member is inserted into the female member, the protrusion of the male member is accommodated in the enlarged opening of the female member, so that a neat impression can be obtained, and the length dimension of the buckle in the plug insertion direction can be obtained. It can be shortened and there is an advantage that it can be miniaturized.

In the buckle of the present invention, the base portion is formed with a string installation hole through which the string-shaped member is inserted adjacent to the protrusion, and the string installation hole communicates with a recess space formed by the recess of the protrusion. It is desirable to have.

According to this structure, since a string installation hole into which the string member is inserted adjacent to the protrusion part is formed, and this string installation hole communicates with the recess space formed by the recess of the protrusion part, the finger is recessed. Easy to put in space That is, when a finger is touched from the rear end of the male member in the insertion direction, the finger is suitable for the recess space from the mounting hole of the tummy, so that the finger is easily placed in the recess space.

In the buckle of the present invention, the protruding portion and the enlarged opening portion are preferably formed on the front and back surfaces of the male member and the female member.

According to this structure, since the protrusion part and the enlarged opening part are formed in the front and back surfaces of the male member and the female member, the front and back surfaces of the male member and the female member can be reliably picked up by the thumb and the index finger of each hand.

In the buckle of the present invention, it is preferable that the concave portion of the protruding portion is formed in a curved shape.

According to this structure, since the recessed part of the protrusion part is formed in the curved shape, a finger becomes easy to match the curved shape of a recessed part, and it is hard to shift | deviate also at the time of insertion of a male member.

In the buckle of the present invention, it is preferable that the concave portion of the protruding portion is formed in the shape of a curved surface which is approximately the center position in the width direction of the male member, the rear end side is the lowest, and gradually increases from the lowest position toward the front end portion. .

According to this configuration, since the concave portion of the protruding portion is formed in a curved shape, that is, the concave portion of the protruding portion is formed in a curved shape conforming to the shape of the belly of the finger, the finger is likely to fit into the concave portion, and also the male member. It is hard to slip off when inserting.

In the buckle of this invention, it is preferable that the recessed part is formed in the edge part on the opposite side to the said insertion opening in the front and back surface of the said female member.

According to this structure, even when the front and back surfaces of a female member are picked up by a thumb and an index finger, since the recessed part is formed in the front and back of the female member on the opposite side to an opening part, it is easy to pick up.

In the buckle of the present invention, it is preferable that the front end of the concave portion is formed in an arc shape.

According to this structure, since the front end of the concave portion is formed in an arc shape, that is, it is formed in a shape conforming to the shape of the tip of the finger, the finger is easy to fit into the concave portion, and the finger is hard to protrude from the concave portion.

In the buckle of the present invention, the guide groove for guiding the engaging portions provided on the respective leg portions of the male member to the engaged portion of the female member is formed from the engaged portion of the female member over the opposing face of the enlarged opening portion. desirable.

According to this configuration, when the male member is inserted into the female member, the engaging portions provided in the respective leg portions of the male member are guided to the engaged portion by the guide grooves formed in the female member and are coupled to the engaged portion. At this time, since the guide groove is formed from the engaged portion of the female member to the opposite surface of the enlarged opening, the insertion direction of the male member can be guided from the initial position where the male member is inserted into the female member to the final position where it is engaged.

The buckle of the present invention includes a male member, a female member into which the male member is inserted and coupled, and the male member includes a foundation portion on which a string member can be installed, a pair of legs protruding from the foundation portion, A coupling portion provided on each leg portion and coupled to the female member, and the base portion has a protrusion portion protruding toward the protrusion direction of the leg portion from a side where the leg portion protrudes, wherein the male member is inserted into the male member. It has an enlarged opening part which accommodates the said protrusion part in the insertion opening to be formed, At least the opposing surface of the protrusion part among the opposing surfaces of the said protrusion part and the said enlarged opening part is formed in circular arc shape, The protrusion part is formed in concave shape, It is characterized by the above-mentioned.

According to this structure, the effect equivalent to the buckle mentioned above can be expected.

According to the present invention, it is possible to provide a buckle that is easy to pick up even when the front and back surfaces of the male member are picked up and operated.

EMBODIMENT OF THE INVENTION Hereinafter, one Embodiment of this invention is described with reference to drawings.

<Description of Embodiment>

1 is an exploded perspective view of the buckle according to the present embodiment, FIG. 2 is a partial cross-sectional view showing the detached state of the buckle according to the present embodiment, FIG. 3 is a sectional view taken along the line III-III of FIG. 2, and FIG. 4 is a line IV-IV of FIG. 5 is a view showing the rear end face of the female member.

As shown in these figures, the buckle 1 of the present embodiment is for connecting and disconnecting the end portions 2 and 3 of the string-like member, similarly to the male member A integrally molded with synthetic resin. The female member B which is integrally molded by synthetic resin and which the male member A is inserted-bonded is provided. In addition, the material of the male member A and the female member B is not limited to the synthetic resin, but may be other materials such as metal.

The male member A protrudes in parallel to each other from both sides of the base portion 10 and the width direction of the base portion 10 (the direction orthogonal to the insertion direction of the male member A). A pair of leg portions 20 that can be elastically deformed in a direction intersecting the insertion direction (specifically, a direction orthogonal to each other), and one support member protruding in parallel with these between the leg portions 20 ( 30).

The base portion 10 is provided with a string installation hole 11 as a string installation portion in which an end portion 2 of the string-shaped member is inserted into an inner central portion thereof, and at the same time, The protrusion part 14 is formed in the frame of the side in which the leg part 20 protruded among the outer periphery frames. The connection lever 12 is bridge | crosslinked to the outer periphery frame in the width direction of the base part 10 in the middle of the string installation hole 11, and the string installation hole 11 is the leg part 20 by this connection lever 12. ) Is divided into two string mounting holes 11A and 11B on the insertion direction front end side and the insertion direction rear end side on the opposite side thereof. Thereby, it becomes the structure which can adjust the length of a string member.

The protruding portion 14 is formed between the pair of leg portions 20 so as to protrude toward the protruding direction of the leg portion 20 from the side on which the leg portion 20 of the base portion 10 is formed. Specifically, it protrudes as it goes toward the center from the both ends of the width direction of the base part 10 so that the insertion direction front-end | tip edge part which inserts the male member A into the female member B conforms substantially to the shape of the front-end | tip contour of a finger. The amount is formed in an arc shape (more specifically, a parabolic shape).

The recessed part 15 is formed in the surface of the protrusion part 14. As shown in FIG. In addition, a surface refers to one side surface (specifically the left side surface of FIG. 3) of the surface parallel to the insertion direction and the width direction of the male member A. As shown in FIG. In addition, the back surface refers to the surface opposite to the surface (specifically, the right side of FIG. 3). The recessed part 15 has the insertion direction front end part 15A of the male member A, and the insertion direction rear end part 15B. The front end portion 15A exhibits the same arc-shaped portion as that of the front end portion contour of the protrusion 14 when viewed from the surface of the male member A, and more precisely, both sides of the protrusion 14 are the rear end portions 15B. It is a parabolic shape reaching up to), and the height of the surface side of the male member A has substantially the same height as the surface of the base portion 10. The rear end portion 15B has a straight portion that extends in a direction orthogonal to the insertion direction (the width direction of the base portion 10) with respect to the insertion direction when viewed from the surface of the male member A, the center portion of which is gentle toward the insertion direction. It is a shape recessed in circular arc shape (the shape which recessed the center part of the rear end part of the protrusion part 14), and the height from the surface of the male member A becomes the width direction approximately center position of the male member A. It is the lowest and shows the arc shape which approaches the surface of the base part 10 toward both ends.

The surface (surface of the concave portion 15) connecting the front end portion 15A and the rear end portion 15B has the lowest widthwise center position of the rear end portion 15B, and moves the front end portion 15A from the lowest position. It is formed in a curved shape (parabolic shape) gradually increasing toward the top. That is, it is formed in the shape of a curved surface conforming to the belly shape of the finger.

The rear end 15B of the recess 15 constitutes the front end wall of the string attachment hole 11 adjacent to the protrusion 14. Therefore, the string attachment hole 11 communicates with the recessed space formed by the recessed part 15.

The recessed part 17 is formed also in the back surface of the protrusion part 14. As shown in FIG. The recessed part 17 is also the same as the shape of the recessed part 15. FIG. However, the point where the narrow width | variety thickness reducing groove 16 is formed along the inner contour of 17 A of front end parts of the recessed part 17 differs from the recessed part 15. FIG.

The leg part 20 is the outer leg member 21 and the inner leg member 22 which are elastically deformable inward with respect to the insertion direction of the male member A, and the outer leg member 21 and the inner leg member 22. It has a tip connector 24 for connecting between the tip of the. The inner leg member 22 is formed at the center side than the outer leg member 21, and the thickness of the inner and outer elastic deformation directions is formed thinner than the thickness of the outer leg members 21 in the inner and outer elastic deformation directions.

The outer leg member 21 extends linearly in the insertion direction of the male member A from both sides of the base portion 10, and is formed in a shape that is curved in a gentle arc from the middle position toward the tip portion.

The inner leg member 22 extends toward the direction of approaching the outer leg member 21 as the proximal end is positioned approximately in the middle of the protruding portion 14 and faces from the proximal end toward the distal end. It is curved in the direction away from the outer leg member 21 after being approached, and is formed in the shape extended along the insertion direction again.

The tip connector 24 is gradually formed in a narrower width from the tip connecting portion of the outer leg member 21 and the inner leg member 22 toward the tip portion, and the front and rear surfaces of the tip connector 24 on the front and back sides thereof. It has the engaging part 25 which protrudes from. The operation part 27 is formed from the outer contour edge of the front end connector 24 to the intermediate position of the outer contour edge of the outer leg member 21 continuous to this.

The support member 30 is formed to protrude in parallel with the pair of leg portions 20 from the distal end of the protruding portion 14, and the support groove 32 at the center of the front and rear faces the protruding direction of the support member 30. Therefore, it is formed.

The female member B includes a flat cylindrical female body 40 having a front side wall 40B constituting the front and back surfaces, a back side wall 40C, and a pair of side walls 40A connecting them.

On the side opposite to the insertion side of the male member A of the female member main body 40, the string installation hole 41 and the connection lever 41A as a string installation part into which the edge part 3 of a string member is inserted and formed are formed. On the insertion side of the male member A, an insertion hole 43 into which the leg 20 and the support member 30 of the male member A are inserted is formed.

The front and back walls 40B and 40C forming the opening of the insertion hole 43, that is, the insertion opening 43A of the female member B, are formed in an arc shape (parabolic shape) in which a central portion is recessed inwardly. An enlarged opening portion 42A into which the protrusion 14 of the member A enters is formed.

Concave portions 51 and 52 are formed in the front and rear end portions of the female member main body 40 opposite to the enlarged opening portion 42A adjacent to the string attachment hole 41. These recesses 51 and 52 are also formed in substantially the same shape as the recesses 15 and 17 of the male member A. FIG. However, with respect to the female member B, the height of the rear end 52B of the recess 52 is, conversely, so that the surface of the coupling lever 41A is lower than the height position of the rear end 51B of the recess 51. The thickness of the connection lever 41A is adjusted so that the back surface of the connection lever 41A may become higher than the position. It is formed so that the surface of the recessed part 51 and the connection lever 41A may comprise the substantially continuous surface across the string installation hole 41, and the back surface of the recessed part 52 and the connection lever 41A is It is formed so that a substantially continuous surface may be comprised. Thereby, even if it passed through the edge part 3 of the string member, the finger which picks up the front and back surface of the female member B can be made to fit into the front and back surface of 41 A of connection levers from the recessed parts 51 and 52. FIG. .

On both side walls of the inner side of the insertion hole 43, as shown in FIG. 2 and FIG. 6, the leg opening part 45 which exposes the operation part 27 of the male member A to an outer surface is formed. The leg opening part 45 is cut out in the concave curved shape from the side wall 40A toward the inside of front and back walls 40B and 40C among the peripheral walls of the female member main body 40 in which the insertion hole 43 was formed.

A concave engaging portion 46 is provided inside the front and rear walls 40B and 40C, and is provided at each leg 20, rather than the opening 45 for the leg. A guide groove 47 for guiding the portion 25 to the engaged portion 46 is formed over the engaged portion 46 from the side including both ends of the enlarged opening portion 42A. The guide groove 47 is formed so that the width direction dimension gradually narrows toward the to-be-engaged part 46 from the expanded opening part 42A. As a result, as the leg portion 20 is inserted into the female member B, the leg portion 20 is inserted while being elastically deformed in a direction orthogonal to the insertion direction (inner side), and then coupled to the engaged portion 46.

Moreover, the projection 48 which fits into the support groove 32 of the support member 30 is formed in the inner surface of front and back walls 40B and 40C along the insertion direction of the male member A. As shown in FIG. Thereby, in the engagement state of a buckle, even if an external force is applied to a buckle main body, a male member can be stably supported in a female member.

In such a configuration, in order to couple the male member A to the female member B, first, the front and back surfaces of the male member A are picked up with the thumb and the index finger of one hand, The index finger picks up the front and back of the female member B.

At this time, since the recesses 15 and 17 are formed on the front and back surfaces of the protrusions 14 protruding from the base 10 on the front and back surfaces of the male member A, the thumbs are formed on these recesses 15 and 17. And when a forefinger is touched, even if the front and back surfaces of the male member A are picked and operated, it is easy to pick up. Further, since the recesses 51 and 52 are formed on the front and back surfaces of the female member B, the thumb and forefinger of the other hand can be touched, so that the front and rear surfaces of the female member B are similarly easily picked up.

In particular, the recesses 15 and 17 are formed in a curved shape, so-called circular recesses. Specifically, it has insertion direction front end parts 15A, 17A and insertion direction rear end parts 15B, 17B of the male member A, and the front end parts 15A, 17A are the front and back surfaces of the base part 10, or It has substantially the same height as the front and back surfaces of the front and back walls 40B and 40C of the female member B, and the rear ends 15B and 17B have the lowest substantially central position in the width direction, and from this position, the front end portions 15A and 17A. It is formed in a curved shape that gradually rises radially toward. That is, since the rear end portions 15B and 17B are formed lower than the front end portions 15A and 17A, when the finger is placed from the rear end portion of the male member A in the insertion direction, the concave surface shape coincides with the bulging portion of the finger. At the same time, even if the finger is applied with the pressing member in the insertion direction with the finger, it is difficult for the finger to be displaced from the recesses 15 and 17. Therefore, it is possible to reliably insert and operate these recessed parts 15 and 17 with a finger.

In addition, the base portion 10 is formed with a string attaching hole 11 adjacent to the protrusion 14, and the string attaching hole 11 is formed by the recesses 15 and 17 of the protrusion 14. Since it is connected to the subspace, the finger is easily inserted into the space of the recesses 15 and 17. That is, when a finger is touched from the rear end part of the male member A in the insertion direction, it fits in the recess space from the mounting hole 11 of the tummy of a finger, and therefore, a finger is easily inserted in the recess space.

In this manner, after the male member A and the female member B are picked up, the male member A is inserted into the female member B. FIG. Then, the coupling part 25 formed at the front end of the leg part 20 is inserted while being guided into the guide groove 47. Since the guide groove 47 is formed with a narrow width toward the inner side of the female member B, the leg portion 20 is inserted while being elastically deformed in a direction (inner side) substantially perpendicular to the insertion direction.

At this time, the outer leg member 21 is elastically deformed inward with the proximal end as a supporting point, but the inner leg member 22 is elastically deformed inward while the bent portion of the fundamental portion is further bent. Since the inner leg member 22 is thinner than the outer leg member 21 and is configured to be easily deformed inward, the leg portion 20 is deformed without requiring a large force. That is, it can operate with light force.

In other words, when the male member A is inserted to the position where the engaging portion 25 of the leg portion 20 exceeds the engaged portion 46 of the female member B, the leg portion 20 that has been elastically deformed inwards. Is elastically returned to its original state (because it is returned to the outside), the engaging portion 25 of the leg 20 is engaged with the engaged portion 46 of the female member B.

Thereby, the male member A can be coupled to the female member B as shown in FIG. In this state, since the protrusion 14 of the male member A is fitted into the enlarged opening portion 42A of the female member B, it is in a state of being fitted almost without any gap, so there is less rattling, You can get a neat impression even for the design. Incidentally, when the female member B has no enlarged opening portion 42A, there is a disadvantage that the plug insertion direction dimension of the buckle becomes long.

In order to remove the male member A from the female member B, the operation part 27 of the leg part 20 which protrudes from the leg opening part 45 of the female member B is pressed inward. Then, the leg part 20 of the male member A is elastically deformed inward. Also in this case, since the leg part 20 is elastically deformed inward, it can operate with light force.

Then, since the engaging part 25 is removed from the to-be-engaged part 46, in this state, when the male member A is pulled out from the female member B, the male member A is removed from the female member B. In FIG. Can be removed

<Description of Modification>

In addition, this invention is not limited to the buckle of the structure demonstrated by said embodiment, The following modified example is also included.

In the said embodiment, although the front end shape of the protrusion part 14 and the front end part shape of the recessed parts 15, 17, 51, and 52 were circular arc shape, as long as it is a shape in which the front-end | tip part of a finger is inserted, it may be another shape. For example, as shown in FIG. 7, the shape of the protrusion part 14 and the shape of the recessed part 15 may be made into the trapezoid shape which the back end part 15B becomes a bottom side and the front end part 15A becomes an upper side. In this case, the inner bottom shape of the recesses 15 and 17 is not a curved shape but a flat groove portion having the same height as shown in FIG.

In the said embodiment, you may make surface treatment, such as anti-skid, on the front and back surfaces of the recessed part 15, 17, 51, 52.

For example, as shown in Fig. 9, on the curved surfaces of the recesses 15 and 17, projections 18A extending in the width direction and having a semicircular cross section may be provided at fixed intervals from the rear end to the leading end. . Alternatively, as shown in Fig. 10, grooves 18B extending in the width direction in the cross-sectional semicircle shape on the curved surfaces of the recesses 15 and 17 may be formed at constant intervals from the rear end to the leading end.

In this case, when the male member A is inserted into the female member B, the finger is less likely to slide from the recesses 15 and 17, so that it can be reliably engaged.

In addition, as shown in FIG. 10, when the groove 18B is formed on the curved surfaces of the recesses 15 and 17 and has a semicircular cross section and extends in the width direction, the bottom portion of the groove 18B is the recess 15. , 17) may be the lowest among the surfaces connecting the rear end and the front end.

Regarding the description of the concave portion of the present invention, "the rear end portion is formed substantially the lowest among the surfaces connecting the front end portion and the rear end portion," and the term "surface" includes an uneven surface generated in such a surface treatment shape. Instead, it refers to a surface that substantially constitutes a surface connecting the front end portion and the rear end portion.

Similarly, although the thickness reducing groove 16 is formed in the recessed part 17, the bottom face of this thickness reducing groove 16 is not "a surface which actually connects the said front end part and a rear end part."

In the said embodiment, although the recessed parts 15, 17, 51, and 52 were made into curved shape, it is not limited to a curved shape. For example, as shown in FIG. 11, it may be set as the inclined surface gradually increasing toward the front end part 15A, 17A from rear end part 15B, 17B. Also in this case, uneven | corrugated processes, such as anti-slip, a process of thickness reduction groove | channel etc. may be performed.

In the above embodiment, all of the recesses 15 and 17 have the same shape, but with respect to at least one of the recesses 15 and 17, the front end portion is substantially the same height as the front surface or the rear surface of the base portion 10. Even if the rear end portion is formed in the lowest form among the surfaces connecting the front end portion and the rear end portion substantially, the same effect as in the above embodiment can be expected.

In the above embodiment, the rear ends 15B and 17B of the recesses 15 and 17 are substantially the lowest among the surfaces connecting the front ends 15A and 17A and the rear ends 15B and 17B. For example, as shown in FIG. 12, the front and back surfaces of the protrusion 14 may be formed in a concave shape. That is, the intermediate position may be the lowest concave shape among the surfaces connecting the front ends 15A, 17A and the rear ends 15B, 17B.

In the said embodiment, although the expanded opening part 42A was formed in the front and back of the female member B, it is not necessary to necessarily provide about the expanded opening part 42A.

In the said embodiment, although the engaging part 25 of the male member A was a structure which couples to the to-be-engaged part 46 provided in the inner side part of the insertion hole 43 of the female member B, it is not limited to this, Other configurations may be possible. For example, a coupling portion is provided outside the leg portion 20 of the male member A so as to engage the leg opening 45 of the female member B, and the male member A is attached to the female member B. The structure may be combined.

In the above-described embodiment, the string mounting holes 11 and 41 are formed in the male member A and the female member B as the string mounting portions, respectively. However, the female member B may not have the string mounting holes 41. That is, the female member main body 40 of the female member B may be directly fixed to another member.

In addition, as a string member, it is not limited to a belt | belt-shaped belt, A width | variety string may be sufficient.

In the said embodiment, although the male member A and the female member B were shape | molded (injection molding or injection compression molding) with the synthetic resin, you may form with a metal etc. without being limited to this.

As mentioned above, although preferred embodiment and various modified examples were mentioned about this invention, of course, you may comprise combining these suitably.

1 is an exploded perspective view showing a buckle of an embodiment of the present invention.

Fig. 2 is a partial sectional view showing the detached state of the buckle of the above embodiment.

3 is a cross-sectional view taken along the line III-III of FIG. 2;

4 is a cross-sectional view taken along the line IV-IV of FIG. 2;

Fig. 5 is a diagram showing a rear end face of the female member in the above embodiment.

Fig. 6 is a partial sectional view showing the engaged state of the buckle in the above embodiment.

Fig. 7 is a plan view showing an engaged state of a buckle of another embodiment of the present invention.

8 is a cross-sectional view taken along the line VIII-VIII in FIG. 7;

Fig. 9 is a cross-sectional view showing a modification in which protrusions are formed in recesses in the present invention.

Fig. 10 is a sectional view showing a modification in which a groove is formed in the recess in the present invention.

Fig. 11 is a cross-sectional view showing a modification in which the recess is an inclined surface in the present invention.

12 is a cross-sectional view showing a modification in which the concave portion is concave in the present invention.

<Explanation of symbols for the main parts of the drawings>

1: buckle

10: foundation

12: connecting lever

14: protrusion

15, 17, 51, 52: recess

20: leg

25: coupling part

27: control panel

30: guide member

32: guide groove

Claims (10)

And a male member A and a female member B into which the male member A is inserted. The male member A is provided on a base portion 10 to which a string member can be installed, a pair of leg portions 20 protruding from the base portion 10, and each of the leg portions 20, and The coupling part 25 which can be coupled to the female member B is provided, The base portion 10 has a protrusion 14 protruding toward the protruding direction of the leg portion 20 from the side on which the leg portion 20 protrudes, Recesses 15 and 17 are formed on the front and back surfaces of the protrusions 14, At least one of the recesses 15 and 17 has insertion direction front ends 15A and 17A and insertion direction rear ends 15B and 17B of the male member A, and the front ends 15A and 17A It has substantially the same height as the front and back surface of the base portion 10, and the rear end portions 15B and 17B are substantially in the plane connecting the front end portions 15A and 17A and the rear end portions 15B and 17B. Buckle characterized in that the lowest formed. The buckle according to claim 1, wherein said female member (B) has an enlarged opening portion (42A) for accommodating said projection portion (14) in an insertion opening (43A) into which said male member (A) is inserted. According to claim 2, The base portion 10 is formed with a string installation hole 11 adjacent to the protruding portion 14 is inserted into the string-shaped member, The said buckle mounting hole (11) is connected to the recessed space formed by the recessed part (15) of the said protrusion part (14). The buckle according to claim 2, wherein the protruding portion (14) and the enlarged opening portion (42A) are formed on the front and back surfaces of the male member (A) and the female member (B), respectively. The buckle according to claim 2, wherein the recesses (15, 17) of the protrusions (14) are formed in a curved shape. The concave portions 15 and 17 of the protruding portion 14 are approximately the center position in the width direction of the male member A, and the rear end portions 15B and 17B side are the lowest, and the lowest position thereof. A buckle, characterized in that it is formed in a curved shape that gradually rises toward the front end portions 15A, 17A. The buckle according to claim 2, wherein in the front and back surfaces of the female member (B), recesses (51, 52) are formed at ends on the opposite side to the insertion opening (43A). 3. The buckle according to claim 2, wherein the front end of the recess (15, 17, 51, 52) is formed in an arc shape. The coupling part 25 provided in each leg part 20 of the said male member A is guide | induced to the to-be-engaged part 46 of the said female member B in any one of Claims 2-8. The guide groove (47) to be formed is formed from the engaging part (46) of the said female member (B) over the opposing surface of the expanded opening part (42A). And a male member A and a female member B into which the male member A is inserted. The male member A is provided on a base portion 10 to which a string member can be installed, a pair of leg portions 20 protruding from the base portion 10, and each of the leg portions 20, and The coupling part 25 which can be coupled to the female member B is provided, The base portion 10 has a protrusion 14 protruding toward the protruding direction of the leg portion 20 from the side on which the leg portion 20 protrudes, The female member B has an enlarged opening portion 42A for accommodating the protrusion 14 in an insertion opening 43A into which the male member A is inserted, At least the opposing surface of the protruding portion (14) among the opposing surfaces of the protruding portion (14) and the enlarged opening portion (42A) is formed in an arc shape, and the protruding portion (14) is formed in a concave shape.

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