JP3205037U - buckle - Google Patents

Abstract

A buckle capable of enhancing the operability for releasing the connection between a male member and a female member. A buckle includes a male member and a female member that can be connected to and disconnected from the male member. The male member 30 includes a base portion and a protruding portion that protrudes from the base portion. The female member 10 includes a female main body, a mounting portion 15 provided on the female main body to which a belt can be attached, and an engagement member 20 attached to the female main body. The engaging member 20 includes a pair of engaging portions 21 that can receive the protruding portions therebetween and be connected to the protruding portions. The pair of engaging portions 21 can be elastically displaced in a direction away from the initial position. The female main body includes an operation unit that is lifted by a user with a finger when releasing the connection of the protrusions to the pair of engaging portions 21. [Selection] Figure 5

Description

  The present invention relates to a buckle, and more particularly to a buckle used for, for example, a backpack, a rucksack, a child seat strap or a belt.

  The buckle is generally composed of a male member and a female member that are detachable from each other. International Publication No. 2014/102905 pamphlet (Patent Document 1) discloses a buckle of a type in which a protruding portion of a male member is connected between a pair of engaging portions of a female member. The buckle includes a female main body and a female main body and an engaging member that is accommodated in the female main body. The engaging member includes a pair of engaging portions and a pair of left and right operations that project outward from the left and right side portions of the female main body. And a spring portion connecting the pair of engaging portions and the operation portion. And when releasing the connection state of a male member and a female member, a user pushes the operation part on either side of a female member. Accordingly, the protrusion of the male member is released from between the pair of engagement portions by elastically displacing the pair of engagement portions in a direction away from each other via the spring portion.

  The above-described buckle of Patent Document 1 is often used for connecting a shoulder strap and a chest strap of a backpack. In this usage mode, the left and right operation parts of the female member are sandwiched between two fingers. In some cases, it was difficult to push down.

International Publication No. 2014/102905

  Therefore, the objective of this invention is providing the buckle which can improve the operativity for cancelling | releasing connection of a male member and a female member.

  In order to solve the above-mentioned problem, according to the present invention, a buckle comprising a male member and a female member that can be connected to and disconnected from the male member, wherein the male member includes a base portion and a base portion. The female member includes a female main body, a mounting portion provided on the female main body to which a belt can be attached, and an engaging member attached to the female main body, A pair of engaging portions that can be coupled to the protruding portions by receiving the protruding portions therebetween, the pair of engaging portions being elastically displaceable in a direction away from an initial position, and the female body Provides a buckle including an operation unit that is lifted by a user with a finger when releasing the connection of the protrusions to the pair of engaging portions.

  In the buckle according to the present invention, the male member and the female member are connected by pushing the protruding portion of the male member between the pair of engaging portions of the engaging member attached to the female main body. When the protrusions of the male member are pushed between the pair of engaging parts of the engaging member, the pair of engaging parts are temporarily elastically displaced in a direction away from each other from the initial position and then restored in a direction approaching each other. (It may not return completely to the initial position.) Thereby, a projection part is received between a pair of engaging parts, and will be in a connection state with a pair of engaging parts. When releasing the connection of the protrusions to the pair of engaging portions, the user lifts the operation portion of the female main body with respect to the male member with a finger. Also at the time of this release of the connection, the pair of engaging portions are temporarily elastically displaced in a direction away from each other from the initial position and then restored in a direction approaching each other. Thereby, the connection between the male member and the female member is released. In the present invention, the user releases the connection between the male member and the female member by simply turning the operation portion of the female main body with one finger without pushing the left and right operation portions of the female member as in the case of a conventional buckle. It becomes possible to do. The belt attached to the female body attachment portion includes a strap and the like.

  The male member, the female main body, and the engaging member can be molded from a thermoplastic resin such as polyacetal, polyamide, and polypropylene, but are not limited thereto.

  In one embodiment of the present invention, the female main body is housed in the housing portion, a housing portion for housing the engaging member, an open portion for inserting the engaging member into the housing portion, and the housing portion. And openings corresponding to the pair of engaging portions of the engaging member. In this case, the engaging member is inserted into the female main body from the open portion and is accommodated in the accommodating portion. The pair of engaging portions of the engaging member is disposed at a position corresponding to the opening of the female main body while being accommodated in the female main body accommodating portion. The protruding portion of the male member is connected to and disconnected from the pair of engaging portions of the engaging portion through the opening of the female main body.

  In one embodiment of the present invention, the protrusion includes a head on the protruding end side and a neck having a smaller outer diameter than the head, and the pair of engaging portions correspond to the head corresponding to the head. And an engaging claw portion corresponding to the neck portion and protruding toward the engaging portion side facing the head corresponding portion. In this case, in a state where the pair of engaging portions are connected to the protruding portion, the head corresponding portion of the engaging portion corresponds to the head of the protruding portion, and the engaging claw portion of the engaging portion corresponds to the neck portion. Since the engaging claw part protrudes to the engaging part side facing the head corresponding part, the engaging claw part corresponding to the neck is caught on the head when trying to remove the protrusion from between the pair of engaging parts, Functions as a disconnect resistance.

  In one embodiment of the present invention, the head has a lower surface whose outer diameter gradually increases from the neck to the radially outer side of the protrusion and toward the protruding end. The lower surface of the head is an inclined surface or a curved surface in which the outer diameter of the head gradually increases from the neck to the outer side in the radial direction of the protrusion and toward the protruding end. Such a lower surface of the head plays a role of reducing the engagement of the engaging claw portion with respect to the head when the connection is released from the state in which the protrusion is connected between the pair of engaging portions of the engaging member. This facilitates the release of the connection between the male member and the female member when the user lifts the operating portion of the female main body with a finger.

  In one embodiment of the present invention, the engaging member includes a pair of locking pieces each having a locking claw, and the female main body includes the pair of locking members of the engaging member housed in the housing portion. It has the to-be-latched part engageable with the latching claw of a piece. The engaging claw of each of the pair of engaging pieces of the engaging member engages with the engaged portion of the female main body while the engaging member is accommodated in the accommodating portion of the female main body. It is housed fixedly in the housing part and cannot be removed from the female body.

  In one embodiment of the present invention, the engagement member includes an elastic support portion provided integrally with the pair of engagement portions. The elastic support portions elastically support the respective engagement portions so as to allow the respective engagement portions to be displaced in directions away from each other.

  In the buckle according to the present invention, it is possible to release the connection between the male member and the female member by simply turning the operation portion of the female body with one finger. Therefore, the operability for releasing the connection between the male member and the female member is enhanced.

FIG. 1 is a perspective view showing a female member of a buckle according to an embodiment of the present invention. FIG. 2 is a perspective view showing a male member of a buckle according to an embodiment of the present invention. FIG. 3 is a perspective view showing a state in which the female member and the male member are connected. FIG. 4 is a cross-sectional view taken along line DD in FIG. FIG. 5 is a partial cross-sectional view taken along line EE in FIG. FIG. 6 is a front view of the female member as seen from the direction of arrow A in FIG. 7 is a partial cross-sectional view taken along line FF in FIG. FIG. 8 is a top view of the engaging member. FIG. 9 is a front view of the engaging member 20 as viewed from the direction G of FIG. FIG. 10 is a view similar to FIG. 7 showing the female body before accommodating the engaging member. FIG. 11 is a front view similar to FIG. 6 showing the female main body before accommodating the engaging member. FIG. 12 is a partial cross-sectional view illustrating a state in which the connected female member rotates around the protrusion with respect to the male member. FIG. 13 is a top view showing another example of the female member. FIG. 14 is a partial cross-sectional view similar to FIG. 7 showing another example of the female main body. FIG. 15 is a top view showing a modified example of the engaging member.

  Hereinafter, embodiments of the buckle according to the present invention will be described with reference to the drawings. However, the present invention is not limited to such embodiments, and may be changed as appropriate within the scope of the claims of the utility model registration and the equivalent scope. Etc. are possible. 1 and 2 are perspective views showing the female member 10 and the male member 30 of the buckle according to the first embodiment of the present invention, respectively. FIG. 3 is a perspective view showing a state in which the female member 10 and the male member 30 are connected. FIG. 4 is a cross-sectional view taken along line DD in FIG. FIG. 5 is a partial cross-sectional view taken along line EE in FIG. 6 is a front view of the female member 10 as viewed from the direction of arrow A in FIG. 7 is a partial cross-sectional view taken along line FF in FIG. The female member 10 includes a female body 11 having a substantially rectangular case shape, and an engaging member 20 (see FIG. 8 and the like) mounted inside the female body 11. The female main body 11, the engaging member 20, and the male member 30 are molded products made of a thermoplastic resin. FIG. 8 is a top view of the engaging member 20. FIG. 9 is a front view of the engaging member 20 as viewed from the direction G of FIG. Hereinafter, with respect to the female member 10 and the male member 30 (the female main body 11 and the engaging member 20), the vertical direction is based on the paper surface of FIGS. Moreover, about the female member 10, the left-right direction shall be based on the paper surface of FIG. Further, with respect to the female member 10, the front side as viewed from the direction A in FIG. The female main body 11 includes a substantially rectangular upper plate 11a and lower plate 11b, a left side portion 11c and a right side portion 11d, a rear side portion 11e (see FIG. 4 and the like), and a rear end portion 11f. The upper plate 11a, the lower plate 11b, the left side portion 11c, the right side portion 11d, and the rear side portion 11e define an accommodating portion S that is a substantially rectangular space inside the female main body 11. The accommodating part S opens to the outside through the opening part 12 on the front side part of the female main body 11. The engaging member 20 is inserted into the female main body 11 from the opening portion 12 and is accommodated in the accommodating portion S. FIG. 10 is a partial cross-sectional view similar to FIG. 7 showing the female main body 11 before accommodating the engaging member 20. FIG. 11 is a front view similar to FIG. 6 showing the female main body 11 before accommodating the engaging member 20. As can be seen from FIG. 10, a circular opening 13 is formed in the center of the lower plate 11 b of the female main body 11. A strap hole 14 is provided between the rear side portion 11e and the rear end portion 11f of the female main body 11 for passing the strap 41 (see FIG. 4) up and down. As can be seen from FIG. 4, the upper half of the strap hole 14 is divided into a fork and a fork (left and right in the plane of FIG. 4) by the mounting portion 15. Further, the upper plate 11a of the female main body 11 includes a bowl-shaped operation portion 16 that projects forward from the opening portion 12 (leftward in the drawing of FIG. 4). The operation unit 16 is a part that lifts the female member 10 with respect to the male member 30 by applying one finger when the user releases the connected state of the female member 10 with respect to the male member 30.

  The male member 30 includes a base portion 31 having a substantially rectangular plate shape, and a protruding portion 32 protruding upward from the center of the base portion 31. Referring to FIG. 4, the protrusion 32 includes a disc-shaped base end portion 32a and an engaged portion 32b protruding upward from the base end portion 32a. The outer diameter and height of the base end portion 32 a substantially coincide with the inner diameter and height of the opening 13 of the lower plate 10 b of the female member 10. The engaged portion 32 b includes a lower neck portion 33 and an upper head portion 34 having an outer diameter larger than that of the neck portion 33. The proximal end portion 32a, the neck portion 33, and the head portion 34 are concentric. The head portion 34 has an inclined surface 34a that is a lower surface whose outer diameter gradually increases from the boundary with the neck portion 33 outward in the radial direction of the protrusion portion 32 and upward (toward the protruding end side). The inclined surface 34a may be curved. Further, the upper surface 34b of the head 34 is a curved surface that protrudes upward. The protruding height of the engaged portion 32 b from the base end portion 32 a is substantially the same as the thickness of the engaging member 20. With respect to the male member 30, hereinafter, the arrow B direction in FIG. The base portion 31 is provided with strap holes 35 that are elongated in the front-rear direction for passing the strap (belt) 40 (see FIG. 3) on the left and right sides of the protrusion 32. The base portion 31 is slightly longer in the left-right direction than in the front-rear direction. Referring to FIG. 4, the base portion 31 is provided with a recess 36 that is recessed upward from the lower surface 31 a. The recess 36 has a truncated cone shape whose outer diameter gradually decreases upward, and is concentric with the protrusion 32. The bottom surface (upper surface) 36 a of the recess 36 is located slightly above the upper surface 31 b of the base portion 31. The diameter of the bottom surface 36 a of the recess 36 is slightly smaller than that of the neck portion 33, and the diameter of the recess 36 that opens to the lower surface 31 a of the base portion 31 is smaller than the base end portion 32 a and larger than the neck portion 33.

  Referring to FIG. 8, the engaging member 20 includes a pair of upper and lower engaging portions 21 that can be connected to the engaged portion 32 b of the protruding portion 32 of the male member 30, and a direction away from each engaging portion 21. A pair of upper and lower elastic support portions 22 that support each engaging portion 21 so as to allow elastic displacement, and a pair of left and right engaging pieces 23 that connect the left and right ends of each elastic support portion 22 are provided. The upper and lower engaging portions 21 and the elastic support portion 22 are integrally formed. Each engaging portion 21 is connected to the engaged portion 32b of the protruding portion 32 of the male member 30, and a head corresponding portion 21a that is an upper half corresponding to the head 34 of the engaged portion 32b; And an engaging claw portion 21 b that is a lower half portion corresponding to the neck portion 33. Each head-corresponding portion 21a extends in a circular arc shape to the left and right from an inner end portion (a corresponding end portion on the engaging portion 21 side) of a later-described support intermediate portion 22a of the corresponding elastic support portion 22. The opposing side surfaces 21aa of the head corresponding portions 21a of the respective engaging portions 21 face each other substantially along an arc. Each engaging claw portion 21b protrudes in a crescent shape toward the engaging portion 21 side facing the opposed side surface 21aa of the head corresponding portion 21a, and narrows the interval between the upper and lower engaging portions 21. The width of the engaging claw portion 21b protruding from the opposing side surface 21aa of the head corresponding portion 21a is the largest at the middle point in the left-right direction and gradually decreases from the middle point in the left-right direction to the left and right. The curvature of the opposing side surface 21ba of each engaging claw portion 21b facing each other is smaller than that of the opposing side surface 21aa of the head corresponding portion 21a. The distance between the opposing side surfaces 21aa of the head corresponding portion 21a of the upper and lower engaging portions 21 in the initial state is substantially equal to the diameter of the head portion 34 of the protruding portion 32 of the male member 30. In the initial state, the distance between the engaging claws 21 b of the upper and lower engaging portions 21 at the intermediate point in the left-right direction is substantially equal to the diameter of the neck 33 of the protrusion 32.

  Each elastic support portion 22 includes a support intermediate portion 22a connected to each engagement portion 21 in the middle in the left-right direction, and a spring portion 22b extending in a substantially arc shape from the support intermediate portion 22a to the left and right and connected to the locking piece 23. . The spring portions 22b of the upper and lower elastic support portions 22 extend left and right so as to approach each other from the respective support intermediate portions 22a. Each elastic support portion 22 further includes an extension portion 22c extending left and right from an end portion of the support intermediate portion 22a opposite to the engagement portion 21. Referring to FIG. 8, the intermediate support portion 22a and the extended portion 22c form a T shape, the T-shaped shaft is the intermediate support portion 22a, and the horizontal bar at the T-shaped head is the extended portion 22c. Referring also to FIG. 9, protrusions 22 d that are slightly convex upward are provided at the intermediate support portion 22 a and the left and right central portions of the extension portion 22 c. The left and right locking pieces 23 have locking claws 23a protruding leftward and rightward, respectively, at the front end and the rear end. The left and right locking pieces 23 are slightly bent in the vicinity of the front and rear locking claws 23a so as to approach each other rightward and leftward. The width of the engaging member 20 in the left-right direction is substantially the same as the interval between the left side portion 11c and the right side portion 11d of the female main body 11 (see FIG. 7). The length of the engaging member 20 in the front-rear direction is slightly shorter than the length in the front-rear direction of the accommodating portion S of the female main body 11 (see FIG. 7).

  Referring to FIG. 10, inner side surfaces 11 ca and 11 da that define the accommodating portion S of the left side portion 11 c and the right side portion 11 d of the female main body 11 are inclined to the rear side portion 11 e so as to approach each other to the rear portion. It includes inner side surfaces 11cb and 11db. Due to the inclined inner side surfaces 11cb and 11db, the rear portion of the accommodating portion S is slightly narrowed in the left-right direction toward the rear end. Further, the left side portion 11c and the right side portion 11d have locked portions 17 that are recessed leftward and rightward from the inclined inner side surfaces 11cb and 11db, respectively. The locked portion 17 receives and engages with a locking claw 23 a behind the engaging member 20 accommodated in the accommodating portion S of the female main body 11. More specifically, when the engaging member 20 is inserted into the accommodating portion S of the female main body 11 from the opening portion 12 and pushed backward, the locking claws 23a on the rear of the left and right locking pieces 23 of the engaging member 20 are provided. Are elastically deformed right and left along the inclined inner side surfaces 11cb and 11db of the left side portion 11c and the right side portion 11d of the female main body 11, respectively. , Each locking claw 23a is restored and engaged with the locked portion 17 (see FIG. 7). Thus, the engaging member 20 is fixedly accommodated in the accommodating portion S and cannot be removed from the female main body 11 simply by being inserted into the female main body 11 from the opening portion 12. Therefore, the assemblability of the female main body 11 and the engaging member 20 is high. In this embodiment, by providing the engaging claws 23a before and after the locking piece 23 of the engaging member 20, the engaging member 20 is inserted into the female main body 11 from the opening portion 12 without distinguishing the front-rear direction. be able to. However, the engaging claw 23 a can be provided only at the rear end of the locking piece 23 of the engaging member 20. Further, in a state where the engaging member 20 is accommodated in the accommodating portion S of the female main body 11, the engaging portion 21 of the engaging member 20 is disposed at a position corresponding to the opening 13 of the female main body 11. In this state, the engaging portion 21 is partially visible from the outside of the female main body 11 through the opening 13.

  Referring to FIG. 9, in engagement member 20, the vertical thickness of spring portion 22 b is slightly smaller than the vertical thickness of locking piece 23, intermediate support portion 22 a, and expansion portion 22 c. Thereby, the spring part 22b becomes easier to elastically deform than the locking piece 23, the intermediate | middle support part 22a, and the expansion part 22c. Although not shown in FIG. 9, the vertical thickness of the engaging portion 21 is substantially equal to the vertical thickness of the locking piece 23. Further, as described above, the extended portion 22c has a protruding portion 22d that protrudes upward in the left and right central portions, and the protruding portion 22d extends to the intermediate support portion 22a. Referring to FIG. 11, reference number 11aa is a lower surface 11aa of the upper plate 11a of the female main body 11. The lower surface 11aa of the upper plate 11a is provided with left and right convex portions 18 slightly convex downward and a groove portion 19 defined between the left and right convex portions 18. The convex portion 18 and the groove portion 19 are formed over the entire length of the upper plate 11a in the front-rear direction. The left and right lengths and top and bottom thickness of the groove portion 19 are substantially equal to the left and right lengths and top and bottom thickness of the protrusion 22d of the engaging member 20. Due to the presence of the convex portion 18 and the groove portion 19 of the female main body 11, the protrusion 22 d of the engaging member 20 is inserted into the groove portion 19 of the female main body 11 when the engaging member 20 is inserted into the housing portion S of the female main body 11. It is necessary to pass through. That is, when the protrusion 22 d of the engaging member 20 faces downward, the engaging member 20 cannot be inserted into the housing portion S of the female main body 11. Therefore, it is possible to distinguish the front and back when the engaging member 20 is incorporated into the female main body 11 by the protrusion 22d. Further, the groove portion 19 of the female main body 11 is engaged with the female member 10 and the male member 30, which will be described later, when the engaging member 20 is received in the receiving portion S of the female main body 11. It plays a role of guiding the elastic displacement of the elastic support portion 22 of the member 20 through the engagement with the protrusion 22d. Thereby, the elastic displacement of the engaging part 21 of the engaging member 20 is performed stably.

  Next, although the operation | movement at the time of connecting the female member 10 and the male member 30 is demonstrated, the up-down direction shall be based on the paper surface of FIG. When connecting the female member 10 and the male member 30, the female member 10 is pressed downward from the opening 13 against the protrusion 32 of the male member 30. As a result, the engaged portion 32 b of the protruding portion 32 enters between the pair of engaging portions 21 of the engaging member 20 from the opening 13. Thereby, the female member 10 and the male member 30 will be in a connection state (refer FIG. 4). Immediately before the engaged portion 32b enters between the pair of engaging portions 21, the curved upper surface 34b of the head 34 abuts against the pair of engaging claws 21b, and widens the distance between the engaging claws 21b. Move relatively upward. At this time, the pair of engaging portions 21 are elastically displaced from the initial positions in directions away from each other through elastic deformation of the respective elastic support portions 22. At this time, the displacement of the engaging portion 21 is performed by the protrusion 22 d being guided by the groove portion 19 of the female main body 11. Then, when the head portion 34 exceeds the engaging claw portion 21b, the pair of engaging portions 21 are restored in a direction approaching each other (there may not be completely returned to the initial position), and the pair of engaging claw portions 21b. Fits into the neck 33. As a result, the female member 10 is connected to the male member 30. In this connected state, the base end portion 32 a of the protrusion 32 of the male member 30 is fitted into the opening 13 of the female member 10, and the head portion 34 enters between the head corresponding portions 21 a of the pair of engaging portions 21. Further, the pair of engaging claws 21 b are fitted into the neck 33. Such an engaging claw portion 21b is caught by the head portion 34 when trying to pull out the protruding portion 32 from between the pair of engaging portions 21, and functions as a resistance to release the connection. Therefore, unless the user pulls the female member 10 away from the male member 30 with a certain force or more, the connected state of both is not released.

  When releasing the connection state of the female member 10 and the male member 30, the user places one finger on the operation unit 16 of the female member 10 and lifts the female member 10 away from the male member 30. Thereby, the engaged part 32b of the projection part 32 which existed between the pair of engaging parts 21 comes out between the pair of engaging parts 21, and the connection between the female member 10 and the male member 30 is released. Also at the time of the release of the connection, the pair of engaging portions 21 are temporarily elastically displaced in a direction away from each other from the initial position and then restored in a direction approaching each other. When the connection is released, the inclined surface 34a of the head portion 34 of the protrusion 32 serves to reduce the catch of the engaging claw portion 21b on the head portion 34. In particular, in the operation of lifting (turning) the operating portion 16 of the female member 10 with a finger, the engaging claw portion 21b causes the head 34 to be moved by the inclined surface 34a of the head 34 in order to tilt the engaging member 20 with respect to the protrusion 32. It will be easier to get over.

  The female member 10 and the male member 30 in the connected state are rotatable with respect to each other about the protrusion 32 of the male member 30. FIG. 12 is a partial cross-sectional view showing a state in which the connected female member 10 rotates with respect to the male member 30 around the protrusion 32. During the rotation of the female member 10 with respect to the male member 30, the opening 13 of the female member 10 guides the proximal end portion 32 a of the protruding portion 32, and the engaged portion 32 b of the protruding portion 32 is connected between the pair of engaging portions 21. Keep the state.

  In the female member 10 of the first embodiment described above, an example in which the operation unit 16 protrudes forward from the upper plate 11a of the female main body 11 has been described, but the present invention is not limited to this. FIG. 13 is a top view showing a female member 10a which is another example of the female member. The female member 10a includes an operation portion 16a formed so as to protrude rightward from the upper plate 11a of the female main body 11. The operation part 16a of the female member 10a can be provided in addition to or in place of the operation part 16 protruding forward from the upper plate 11a. The operation unit 16a has two holes 16b through which a string or the like can pass. In FIG. 13, the configuration of the female member 10a is the same as that of the female member 10 of the first embodiment except for the operation portion 16a. Therefore, the same reference numerals are used for the female main body 11, the upper plate 11a, and the like. In the case of the buckle using the female member 10a, the user can release the connected state of the male member 30 and the female member 10a by placing a finger on the operation portion 16a and lifting the female member 10a with respect to the male member 30.

  FIG. 14 is a partial cross-sectional view similar to FIG. 7 showing a female body 111 which is another example of the female body 11. The female main body 111 has a housing portion Sa in which the engaging member 20 of the first embodiment described above is housed, and the housing portion Sa opens to the outside from the opening portion 112 on the right side. That is, the engaging member 20 is inserted into the accommodating portion Sa from the right opening portion 112. At this time, the engaging member 20 is oriented so that the pair of engaging portions 21 are arranged side by side. The locking piece 23 comes up and down. In the female main body 111, the accommodating portion Sa is defined by an upper plate (not shown), a lower plate 111a, a front side portion 111b, a left side portion 111c, and a rear side portion 111d. At the left end portion of the inner side surface 111e of each of the front side portion 111b and the rear side portion 111d, a locked portion 117 that engages with the locking claw 23a of the locking piece 23 of the engaging member 20 is provided. Reference numeral 116 in FIG. 14 is an inner inclined surface provided on the inner side surface 111e of each of the front side portion 111b and the rear side portion 111d. Although not shown, a groove 19 that guides the protrusion 22d of the engaging member 20 is formed on the lower surface of the upper plate along the left-right direction.

  FIG. 15 is a top view showing an engagement member 120 which is a modification of the engagement member. The engagement member 120 includes a pair of upper and lower engagement portions 121 and an elastic support portion 122 that supports the engagement portions 121 so as to allow the engagement portions 121 to be elastically displaced in directions away from each other. . Each engagement part 121 is the same form as the engagement part 21 of the first embodiment, and the head corresponding part 121 a corresponding to the head 34 of the protrusion 32 of the male member 30 and the engagement corresponding to the neck part 33. Claw portion 121b. The elastic support portion 122 extends in a substantially arc shape from one of the upper and lower support intermediate portions 122a connected to each engagement portion 121 in the middle in the left-right direction and the upper and lower support intermediate portions 122a, and the other support intermediate portion 122a. And a spring part 122b connected to. The spring portion 122b has an elliptical shape that is long in the left-right direction. Each elastic support part 122 further includes an extension part 122c extending from the end of the support intermediate part 122a opposite to the engagement part 121 to the left and right. Each of the upper and lower extension parts 122c has a convex part 123 protruding upward from the upper surface thereof. Although not shown, the female main body that accommodates the engaging member 120 in the accommodating portion is provided with a concave portion that engages with the convex portion 123 of each of the upper and lower extension portions 122c. When the engaging member 120 is inserted into the housing portion of the female main body, the engaging member 120 does not come out of the male main body by engaging the convex portion 123 of the engaging member with the concave portion of the male main body. The engaging member 120 also has a protrusion 122 d similar to the protrusion 22 d of the engaging member 20. The female member in which the engaging member 120 is accommodated in the accommodating portion of the female main body can be connected to and disconnected from the male member 30 in the same manner as the female member 10 described above.

10, 10a Female member 11 Female body 12, 112 Opening part 13 Opening 16, 16a Operation part 19 Groove part 20, 120 Engaging member 21, 121 Engaging part 21a, 121a Head corresponding part 21b, 121b Engaging claw part 22, 122 elastic support portions 22b and 122b spring portions 22d protrusions 23 locking pieces 23a locking claws 30 male members 31 base portions 32 protruding portions 32a base end portions 17, 117 locked portions 33 neck portions 34 head portions 34a inclined surfaces (lower surfaces) )
S, Sa accommodating part

Claims (6)

A buckle composed of a male member (30) and a female member (10, 10a) that can be connected to and disconnected from the male member (30),
The male member (30) includes a base portion (31) and a protruding portion (32) protruding from the base portion (31).
The female member (10, 10a) is attached to the female main body (11, 111), the attachment portion (15) provided on the female main body (11, 111) to which the belt can be attached, and the female main body (11, 111). Engagement members (20, 120) to be mounted,
The engaging member (20, 120) includes a pair of engaging portions (21, 121) that can receive the protruding portion (32) therebetween and be coupled to the protruding portion (32),
The pair of engaging portions (21, 121) are elastically displaceable in a direction away from the initial position,
The female body (11, 111) includes an operation unit (16, 16a) that a user lifts with a finger when releasing the connection of the projection (32) to the pair of engaging portions (21, 121). A buckle characterized by that.   The female main body (11, 111) includes an accommodating portion (S, Sa) for accommodating the engaging member (20, 120), and the accommodating member (20, 120) as the accommodating portion (S, Sa). Corresponding to the pair of engaging portions (21, 121) of the engaging member (20, 120) accommodated in the accommodating portion (S, Sa). The buckle according to claim 1, comprising an opening (13) to be opened.   The protrusion (32) includes a head (34) on the protruding end side and a neck (33) having an outer diameter smaller than that of the head (34), and the pair of engaging portions (21, 121) A head corresponding part (21a, 121a) corresponding to the head (34) and an engaging part (21, 121) corresponding to the neck (33) and facing the head corresponding part (21a, 121a). The buckle according to claim 1 or 2, comprising an engaging claw portion (21b, 121b) protruding to the side.   The buckle according to claim 3, wherein the head (34) has a lower surface (34a) whose outer diameter gradually increases from the neck (33) to the radially outer side of the protrusion (32) toward the protruding end.   The engaging member (20) includes a pair of locking pieces (23) each having a locking claw (23a), and the female main body (11, 111) is accommodated in the accommodating portion (S, Sa). The buckle according to claim 2, further comprising a locked portion (17, 117) engageable with a locking claw (23a) of the pair of locking pieces (23) of the engagement member (20).   The buckle according to claim 1, wherein the engagement member (20, 120) includes an elastic support portion (22, 122) provided integrally with the pair of engagement portions (21, 121).

Images