CN107811356A - Buckled male parts and buckle - Google Patents

Abstract

The invention provides a buckle male part (100) comprising a base (10), legs (20, 30) and a guide (40). Protrusions (50) are provided at the legs. A receiving portion (60) is provided at the guide. The receiving portion has an opening portion (65) that is open at least in the left-right direction. The protrusion has an insertion end (55) inserted into the opening portion of the receiving portion. The protrusion is present between the distal end of the leg (29, 39) and the distal end of the guide (49) when the leg assumes a first posture in which the insertion end of the protrusion is partially inserted into the opening of the receptacle before elastic deformation of the leg and the protrusion has a curved surface (59m, 59n) shaped to approach the base as the curved surface extends away from the guide distal end towards the leg distal end. In another embodiment, the protrusion may be provided at the guide and the receptacle may be provided at the leg.

Description

buckle male part and buckle

technical field

The invention relates to a buckle male part and a buckle.

Background technique

Japanese Patent No. 2530126 discloses a male part 1 having plate-like protrusions 36, 36, as shown in its FIG. Possibility of inaccurate or partial coupling of male part 1 and female part 8 .

The specification of German Utility Model No. 20117291 discloses a male part in which the central rod and the left and right locking elements are joined into a ring, as shown in its Figures 2a to 2c.

Contents of the invention

The present inventors have recently discovered that it is of interest to facilitate easier coupling between male and female parts while inhibiting inaccurate and unintended engagement between male and female parts.

A buckle male component according to an aspect of the present disclosure may include:

base;

at least one leg extending away from the base and having a distal leg end furthest from the base; and

a guide extending along the at least one leg away from the base and having a guide distal end furthest from the base;

Wherein, a protrusion protruding in the left-right direction is provided at one of the leg and the guide, and a protrusion capable of receiving the guide is provided at the other of the leg and the guide. protruding receiving portion;

wherein the receiving portion has an opening portion opened at least in the left-right direction, and the protrusion has an insertion end inserted into the opening portion of the receiving portion; and

Wherein, when the leg takes the first posture, that is, the insertion end of the protrusion is placed adjacent to or partially inserted into the opening of the receiving part before the elastic deformation of the leg, the A protrusion exists between the distal end of the leg and the distal end of the guide, and the protrusion has a curved surface or slope shaped to approach The distal ends of the legs extend proximate to the base.

In some embodiments, the insertion end of the protrusion may be partially inserted into the opening portion of the receiving portion when the leg portion takes the first posture.

In some embodiments, the protrusion may comprise a protrusion protruding toward the distal end of the leg or the distal end of the guide.

In some embodiments, the leg portion may include a spring portion coupled directly or indirectly to the base portion and a pressed portion coupled to the spring portion; wherein the protrusion may be coupled to the leg portion The pressed portion is not coupled to the spring portion.

In some embodiments, the leg portion may include a spring portion coupled directly or indirectly to the base portion and a pressed portion coupled to the spring portion; wherein the guide may be coupled to the base portion via a bifurcation portion. base; and wherein, the spring portion and/or the pressed portion may bulge toward the joint portion between the guide and the bifurcated portion and may have a The width in the left-right direction increases with the raised position of the part.

In some embodiments, the guide may be provided with the receiving portion, and the guide may include at least one plate extending away from the base and a partition wall coupled to the plate.

In some embodiments, the guide may have a width in the left-right direction that increases as extending away from the base.

In some embodiments, the buckle male member may include a left and right pair of legs, each of the legs extending away from the base and having a distal end of the leg furthest from the base.

In some embodiments, the leg or the guide may have a curved surface or an inclined surface arranged continuously with the curved surface or inclined surface of the protrusion.

A buckle according to an aspect of the present disclosure may include the above-mentioned buckle male part and a female part coupled to the buckle male part.

According to these aspects of the present disclosure, easier coupling between male and female parts can be facilitated while inhibiting inaccurate and unintended engagement between the male and female parts.

Description of drawings

FIG. 1 is a schematic perspective view of a buckle according to a disclosed embodiment, showing a state where a male part is not inserted into but coupled with a female part.

2 is a schematic perspective view of a buckle according to a disclosed embodiment, illustrating a state where a male part is inserted into and coupled with a female part.

3 is a schematic top view of a buckle according to a disclosed embodiment, showing a state where a male part is not inserted into but coupled with a female part.

4 is a schematic cross-sectional view of a buckle according to a disclosed embodiment, showing a schematic cross-section taken along the dashed line X4-X4 shown in FIG. 3 .

5 is a schematic cross-sectional view of the buckle according to the disclosed embodiment, showing the cross-section of the male and female parts at the center in the thickness direction. FIG. 5 shows a state where the wall of the female part adjacent to the front main opening touches the curved surface of the protrusion at the leg of the male part when the male part is inserted into the female part.

6 is a schematic cross-sectional view of the buckle according to the disclosed embodiment, showing the cross-section of the male and female parts at the center in the thickness direction. 6 shows a state where the legs of the male part are pushed inward in the left-right direction due to contact between the walls of the female part adjacent to the front main opening and the curved surfaces of the protrusions at the legs of the male part.

7 is a schematic top view of a buckle according to a disclosed embodiment, showing a state where a wall of a female part has erroneously entered a space between a bifurcation and a leg of a male part.

8 is a schematic partial top view of another buckle in accordance with disclosed embodiments. FIG. 8 shows an embodiment in which the space between the protrusion and the guide is reduced due to the protrusion provided at the protrusion.

FIG. 9 is a schematic enlarged view of a portion indicated by a dotted circle in FIG. 8 .

10 is a schematic perspective view of another buckle in which the receiver is provided at the leg and the protrusion is provided at the guide, according to the disclosed embodiment.

11 is a schematic top view of another buckle shown in FIG. 10 with the receiver at the leg and the protrusion at the guide, according to the disclosed embodiment.

Fig. 12 is a schematic cross-sectional view taken along the dotted line XII-XII shown in Fig. 11 .

13 is a schematic perspective view of another buckle male component in which the protrusions at the legs are provided with non-curved flat slopes in accordance with the disclosed embodiments.

14 is a schematic top view of another buckle male component shown in FIG. 13 with the protrusion at the leg provided with a non-curved flat slope, according to a disclosed embodiment.

15 is a schematic perspective view of another buckle male component according to the disclosed embodiments, wherein the guide includes a cross-sectional T-shaped portion.

16 is a schematic top view of another buckle male component shown in FIG. 15 in accordance with a disclosed embodiment.

17 is a schematic perspective view of another buckle male component in accordance with disclosed embodiments.

18 is a schematic cross-sectional view of another buckle male component shown in FIG. 17 in accordance with a disclosed embodiment.

19 is a schematic top view of another buckle male component in accordance with the disclosed embodiments.

20 is a schematic top view of another buckle male component in accordance with the disclosed embodiments.

21 is a schematic cross-sectional view of the buckle male component shown in FIG. 20 in accordance with a disclosed embodiment.

22 is a schematic illustration of another buckle showing a top view of a male component and a cross-sectional view of a female component in accordance with disclosed embodiments.

Explanation of reference signs

100 male parts

10 base

20 legs

30 legs

40 guide

50 protrusions

60 Reception Department

200 female parts

300 Buckle

Detailed ways

Non-limiting embodiments and features of the present disclosure will be described below with reference to FIGS. 1 to 22 . Each embodiment and the features included in each embodiment are not independent of each other. Those skilled in the art can appropriately combine each embodiment and/or each feature without additional explanation. Those skilled in the art will appreciate the synergistic effect of such combinations. Repeated descriptions of these embodiments are basically omitted. Reference to the drawings is primarily for the purpose of illustrating the invention and may have been simplified for the convenience of making the drawings.

Various exemplary embodiments of buckles will be discussed with reference to FIGS. 1-22 described above.

Hereinafter, for convenience of description, coordinates will be established for male parts (ie, male part coordinates) and coordinates for female parts (ie, female part coordinates). As shown in FIG. 1 , the male member coordinate MCO is composed of a left-right direction extending between L and Ri, a vertical direction extending between U and D, and a front-rear direction extending between F and Re. The female component coordinate FCO is composed of a left-right direction extending between L and Ri, a vertical direction extending between U and D, and a front-rear direction extending between F and Re. The male component coordinates MCO and the female component coordinates FCO are the same except that the front-back and left-right directions of the male component coordinates MCO are opposite to those of the female component coordinates FCO. Assuming the premise of FIG. 1 , when the male part moves to couple with the female part, the forward direction of the male part is the same as the direction in which the male part moves toward the female part. When the female part is moved to couple with the male part, the forward direction of the female part is the same as the direction in which the female part moves towards the male part.

As shown in FIG. 1 , the buckle 300 includes a male part 100 and a female part 200 . The male component 100 includes a base 10, a pair of left and right legs 20, 30 extending away from the base 10, and a pair of legs 20, 30 extending away from the base 10 along each leg 20, 30 A guide 40 extending away from the base 10). Leg 20 may be referred to as a left leg and leg 30 may be referred to as a right leg. The legs 20, 30 of the male part 100 can be inserted into the inner space of the female part 200 via the front main opening of the female part 200, so that the male part 100 and the female part 200 are coupled together.

The base 10 according to the illustrated embodiment may be a portion having a narrow hole for inserting a strap, but is not limited thereto. More specifically, the base 10 may include a front bar 11 , a rear bar 12 , a left wall 13 and a right wall 14 . The front bar 11 extends in the left-right direction. The rear lever 12 extends in the left-right direction. The front bar 11 and the rear bar 12 are arranged substantially parallel to each other. A narrow hole elongated in the left-right direction is defined between the front bar 11 and the rear bar 12 so as to allow a strap to be inserted therethrough.

The left end of the front rod 11 and the left end of the rear rod 12 are coupled by the left wall 13 . The right end of the front rod 11 and the right end of the rear rod 12 are coupled by a right wall 14 . In some embodiments, the front bar 11 and/or the rear bar 12 may be divided at the center in the left-right direction. That is, the front pole 11 and the rear pole 12 need not be continuous in the left-right direction.

The pair of left and right leg portions 20, 30 both extend forwardly away from the base portion 10 at the rear. The legs 20 , 30 may include a spring portion 27 , 37 directly or indirectly coupled to the base 10 and a pressed portion 26 , 36 coupled to the spring portion 27 , 37 . It should be noted that the specific configuration of the legs is not limited to the illustrated embodiment. This is because those skilled in the art will recognize that the legs can have a variety of shapes. For example, in the illustrated embodiment the legs are shown as rods extending in the fore-and-aft direction, but the legs could be elongated annular portions in the fore-and-aft direction.

The left leg portion 20 includes a pressed portion 26 arranged on the front side and a spring portion 27 arranged on the rear side. The pressed part 26 may be a part pressed or pushed by a person or a device or a machine or a robot to release the coupling between the female part 200 and the male part 100 . The spring portion 27 may be an elastically deformable portion provided to allow elastic displacement of the pressed portion 26 . Elastic displacement means that after the member has been moved from an initial position to another position, the member can return from the other position to the original position. Elastic deformation means that a member can return to its original shape or posture after being deformed from an original shape or posture to another shape or posture.

When the male part 100 and the female part 200 shown in FIG. 2 are to be uncoupled, the pressed part 26 can be pressed by a person, a machine or a device or a robot, so that it is displaced inwardly in the left-right direction, that is, close to guide 40 to disengage from female part 200 . In some embodiments, the pressed portion 26 may be shaped relatively large. The spring portion 27 may be shaped to have a smaller thickness or width in the left-right direction than the pressed portion 26 , thereby securing spring characteristics of the spring portion 27 . The rear end of the spring part 27 is coupled to the front end of the left wall 13 .

The male part 100 and the female part 200 may be manufactured by injection molding of a resin material. It is conceivable that metal members may be insert-molded in addition to resin materials. The male part 100 and the female part 200 can be classified as a so-called "lateral joint (side joint) type". However, in another embodiment, the male part 100 and the female part 200 may be classified into a so-called "vertical joint (up and down joint) type". That is, various coupling manners between the legs 20, 30 of the male component 100 and the female component 200 are contemplated, and thus the illustrated embodiments are merely examples and should not be considered limiting.

In the illustrated embodiment, the locking portion 28 is provided on the rear surface of the pressed portion 26 . The lock portion 28 is provided with an inclined surface inclined forward as it extends inwardly in the left-right direction. When the leg portion 20 is of the vertical engagement type, a concave engagement portion or a protrusion engagement portion may be provided at an upper surface or a lower surface of the leg portion 20 .

The leg distal end 29 may be provided at the pressed portion 26 of the left leg 20 . The leg distal end 29 is the part of the leg 20 furthest from the base 10 in the front-rear direction. It should be noted that the protrusions described below are not part of the legs. The protrusions described below are parts different from the legs.

The right leg 30 may be of similar construction as the left leg 20 . The pressed portion 26, spring portion 27, locking portion 28 and leg distal end 29 of the left leg 20 can be changed to the pressed portion 36, spring portion 37, locking portion 38 and leg distal end 39 of the right leg 30. Note that the rear end of the spring portion 37 of the right leg portion 30 is coupled to the front end of the right wall 14 .

The left leg portion 20 and the right leg portion 30 are respectively provided with protrusions 50 protruding in the left-right direction. The protrusion 50 protrudes inwardly in the left-right direction from the leg parts 20 and 30 . More specifically, the protrusion 50 protrudes toward the guide 40 away from the inner surface in the left-right direction of the pressed portion 26 , 36 of the leg portion 20 , 30 . In the illustrated embodiment, the protrusion 50 is positioned at the center of the thickness of the pressed portion 26 , 36 of the leg portion 20 , 30 in the up-down direction. As described below, an embodiment in which the protrusion 50 is provided at the guide 40 is contemplated. The protrusion 50 coupled to the left leg 20 may be referred to as a left protrusion, and the protrusion 50 coupled to the right leg 30 may be referred to as a right protrusion. In some cases including the illustrated embodiment, the protrusion 50 is coupled to the pressed portion 26 instead of the spring portion 27 , thereby ensuring sufficient elasticity of the legs 20 , 30 . The specific shape, location or size of protrusion 50 is just one example and should not be considered limiting. In some embodiments, the protrusion 50 may be shaped like a plate.

The protrusion 50 may have an insertion end 55 inserted into an opening portion 65 of the receiving portion 60 described below. The insertion end 55 may be an inner end of the protrusion 50 in the left-right direction. The insertion end 55 may be arranged to face a left side or a right side of a partition wall 43 described below provided at the guide 40 . In some embodiments, the insertion end 55 may be arranged to face the left side or the right side of the partition wall 43 when the legs 20, 30 take the first posture and the second posture.

In this specification, the first pose of the leg 20, 30 may refer to the pose or position of the leg 20, 30 when the leg 20, 30 is not elastically deformed. The second pose of the leg 20, 30 may refer to the pose or position of the leg 20, 30 when the leg 20, 30 is elastically deformed. No deformation is induced at the legs 20, 30 when the legs 20, 30 assume the first posture. When the legs 20, 30 assume the second posture, deformation is induced at the legs 20, 30, whereby the legs 20, 30 are forced to return to the first posture.

The guide 40 extends away from the base 10 between the left and right pair of legs 20 , 30 . The guide 40 may have a guide distal end 49 furthest from the base 10 . The guide distal end 49 may be positioned further from the base 10 in the fore-aft direction than the leg distal ends 29, 39. In other words, the leg distal ends 29 , 39 may be positioned closer to the base 10 than the guide member distal end 49 in the fore-aft direction. Note that the front-to-back direction may be the same or substantially the same as the direction in which the guide 40 and/or the legs 20 , 30 extend.

A guide 40 may be provided at the front side of the base 10 . The guide 40 may include at least one plate 41 , 42 extending away from the base 10 and a partition wall 43 coupled to the plates 41 , 42 . In the illustrated embodiment, the guide 40 includes an upper plate 41 and a lower plate 42 as a pair of upper and lower plates. The partition wall 43 may be coupled between the upper plate 41 and the lower plate 42 and may be disposed at the center of the upper plate 41 and the lower plate 42 in the left-right direction.

The guide 40 may be provided with a pair of left and right receiving portions 60 each capable of receiving the protrusions 50 of the legs 20 , 30 . The receiving portion 60 is constituted by at least one of the upper plate 41 and the lower plate 42 , or includes at least one of the upper plate 41 and the lower plate 42 . Receptacle 60 optionally includes or is configured to include partition wall 43 . Receptacle 60 may optionally include additional portions. The specific shape, location or size of the receptacle 60 is exemplary only and should not be considered limiting.

Each receiving portion 60 has an opening portion 65 that is open at least in the left-right direction. In the illustrated embodiment, the opening portion 65 is opened toward the outside in the left-right direction between the upper plate 41 and the lower plate 42 , that is, the side of the leg portion 20 or 30 , but is not limited thereto. As will be understood from the description below, the receiving portion 60 may open differently in other embodiments. As shown in the figure, the opening portion 65 of the receiving portion 60 on the left side has a mouth portion opened on the left leg portion 20 side. The opening portion 65 of the receiving portion 60 on the right side has a mouth portion opened on the right leg portion 30 side. The opening portion 65 of each receiving portion 60 may have a mouth portion having an opening width greater than the thickness of the protrusion 50 in the up-down direction. The opening portion 65 of each receiving portion 60 may have a mouth portion having an opening width greater than the length of the protrusion 50 in the front-rear direction.

In the illustrated embodiment, the guide 40 is coupled to the base 10 via the bifurcation 46, but need not be limited thereto. In this case, the flexibility of the guide 40 can be ensured or enhanced. The bifurcated portion 46 is interposed between the base 10 and the guide 40 in the front-rear direction.

The bifurcated portion 46 may have a left half 46p coupled to the front end of the left wall 13 of the base 10 , and a right half 46q coupled to the front end of the right wall 14 of the base 10 . The left half 46p extends obliquely closer to the right half 46q as it extends forward away from the base 10 . The right half 46q extends obliquely closer to the left half 46p as it extends forward away from the base 10 . The left half 46p extending obliquely, the right half 46q together with the base 10 or the front bar 11 form a triangular frame seen from above or below.

The upper plate 41 and the lower plate 42 extend forward from the front end of the bifurcated portion 46 which may be positioned at the center in the left-right direction. Note that the front end of the bifurcated portion 46 may be a joint portion between the left half 46p and the right half 46q. Similar to the upper plate 41 and the lower plate 42 , the partition wall 43 may extend forward from the front end of the bifurcated portion 46 . The upper plate 41 and the lower plate 42 may be coupled by the partition wall 43 over the entire length in the front-rear direction of the partition wall 43 . The partition wall 43 may be coupled to the center of the upper plate 41 in the left-right direction and coupled to the center of the lower plate 42 in the left-right direction.

The front end of the partition wall 43 can be positioned slightly closer to the base 10 or positioned backward relative to the front ends of the upper plate 41 and the lower plate 42 . In some embodiments, the partition wall 43 may be divided into a plurality of parts in the front-rear direction.

An upper guide protrusion 48m may be provided at an upper surface of the upper plate 41 . A lower guide protrusion 48 n may be provided at a lower surface of the lower plate 42 . The upper guide protrusion 48m and the lower guide protrusion 48n protruding in the up-down direction may be individually or collectively referred to as the guide protrusion 48 .

The female part 200 includes a base 210 and a main body 220 . The base 210 includes a rod extending in a left-right direction, a left wall to which a left end of the rod is coupled, and a right wall to which a right end of the rod is coupled. The main body 220 includes an upper plate 221 , a right wall 222 , a left wall 223 and a lower plate 224 .

The upper plate 221 and the lower plate 224 are Y-shaped when viewed from above or below. The right wall 222 extends in the vertical direction between the right end of the upper plate 221 and the right end of the lower plate 224 such that the upper plate 221 and the lower plate 224 are coupled at the right side. The left wall 223 extends in the vertical direction between the left end of the upper plate 221 and the left end of the lower plate 224, so that the upper plate 221 and the lower plate 224 are coupled on the left side. The upper plate 221 and the lower plate 224 are coupled via the right wall 222 and the left wall 223 at the frontmost position.

The upper plate 221 and the lower plate 224 are provided with guide grooves 230 that engage or engage with the guide protrusions 48 . The guide groove 230 is recessed in the up-down direction at the lower surface of the upper plate 221 and at the upper surface of the lower plate 224 . The rear ends of the right wall 222 and the left wall 223 are provided with a locking portion 260 , and the locking portions 28 , 38 of the legs 20 , 30 of the male member 100 are locked by the locking portion 260 .

The front main mouth of the female part 200 is defined by an upper plate 221 , a right wall 222 , a left wall 223 and a lower plate 224 . A left opening 250p opening to the left is provided between the left wall 223 and the base 210 . A right opening 250q opening to the right is provided between the right wall 222 and the base 210 . The left opening 250p and the right opening 250q may be referred to individually or collectively as openings 250 .

Similar to the generally used buckle male part, the legs 20, 30 of the disclosed male part 100 can be displaced mainly based on the elasticity of the spring part 27, and can take the above-mentioned first posture and second posture. In the process of inserting the male part 100 into the female part 200, the legs 20, 30 are displaced to the inside in the left-right direction and leave the first posture to take the second posture, after which the legs 20, 30 move to the left-right direction. The lateral displacement causes the legs 20, 30 to return from the second position to the first position or assume a second position that is urged to return to the first position. In this case, the pressed portion 26 of the left leg portion 20 of the male member 100 protrudes outward in the left-right direction through the right opening 250q of the female member 200 . Similarly, the pressed portion 36 of the right leg portion 30 of the male member 100 protrudes outward in the left-right direction through the left opening 250 p of the female member 200 . The locking parts 28 , 38 of the legs 20 , 30 of the male part 100 are thus locked by the locking part 260 of the female part 200 , thereby enabling the coupling of the male part 100 and the female part 200 . When the vertical engagement type is used instead of the horizontal engagement type, the male part 100 and the female part 200 can be engaged at different positions to achieve coupling.

In the current embodiment, when the legs 20, 30 take the first posture, that is, when the insertion end 55 of the protrusion 50 is placed adjacent to or partially inserted into the opening 65 of the receiving portion 60 before the legs 20, 30 are elastically deformed, The protrusion 50 exists between the leg distal end 29, 39 and the guide member distal end 49, and the protrusion 50 has a curved surface 59m shaped to approach as it extends away from the guide member distal end 49 toward the leg distal end 29, 39. Base 10. The curved surface 59m may be a surface protruding forward at the center side in the left-right direction of the male member 100 . This may facilitate easier coupling between the male part 100 and the female part 200 while inhibiting inaccurate and unintended engagement between the male part 100 and the female part 200 .

More specifically, the space between the pressed portions 26, 36 of the legs 20, 30 and the guide 40 can be substantially occupied by the protrusion 50, and thus inaccuracies and inaccuracies between the male part 100 and the female part 200 can be suppressed. Intent to engage. In addition, when the curved surface 59m of the protrusion 50 of the leg 30 of the male member 100 touches the front end of the left wall 223 of the female member 200 (as shown in FIG. 5 ), the leg 30 can be pushed inward in the left-right direction ( As shown in Figure 6). Due to the contact between the curved surface 59m and the left wall 223, the force inserting the legs 20, 30 of the male member 100 into the female member 200 is converted into a force pushing the legs 20, 30 inwardly in the left-right direction. The insertion of the legs 20 , 30 of the male part 100 into the female part 200 can thus be facilitated or made easier.

In the current embodiment, the guide 40 may have the curved surface 49m arranged continuously with the curved surface 59m of the protrusion 50, but is not limited thereto. The curved surface 49m may be a surface protruding forward at the center in the left-right direction. The curved surface 49m of the guide 40 and the left and right curved surfaces 59m of the protrusion 50 are substantially continuous in an arc shape when viewed from above, thereby further facilitating or facilitating the above-mentioned insertion. There may be slight steps between the curved surface 49m and the curved surface 59m, but this does not completely negate the above-mentioned advantages.

In the current embodiment, the guide 40 may have a width W40 in the left-right direction that increases as the guide 40 extends away from the base 10 , but is not limited thereto. A space generated between the protrusion 50 and the receiving portion 60 when the legs 20 , 30 are in the first posture can thus be suppressed.

In the current embodiment, the width W50 of the protrusion 50 in the left-right direction increases as the protrusion 50 extends away from the base 10 , but is not limited thereto. A space generated between the protrusion 50 and the receiving portion 60 when the legs 20 , 30 are in the first posture can thus be suppressed.

In the present embodiment, the spring portions 27, 37 of the leg portions 20, 30 may bulge toward the joining portion between the guide 40 and the bifurcated portion 46, and may have correspondingly increased widths in the left-right direction, but not limited to this. Additionally or alternatively, the pressed portion 26 , 36 may bulge toward the joint portion between the guide 40 and the bifurcated portion 46 , and may have a correspondingly increased width in the left-right direction. In the illustrated embodiment, the spring portion 27 , 37 of the leg portion 20 , 30 may have an increased width in the left-right direction adjacent to the pressed portion 26 , 36 . In addition, spaces 96 between the legs 20 , 30 and the guide 40 and between the legs 20 , 30 and the bifurcation 46 extend with a substantially constant width and are adjacent to the junction between the guide 40 and the bifurcation 46 Bend or bend. In this case, even when the walls 222, 223 of the female part 200 enter the space 96 (as shown in FIG. of the rear end. The risk of foreign objects inadvertently entering the space 96 is also reduced. Therefore, breakage of the leg portions 20 and 30 can be suppressed.

In some exemplary embodiments including FIGS. 8 and 9 , the protrusion 50 may be provided with a protrusion 54 protruding toward the guide distal end 49 so that the space between the protrusion 50 and the guide distal end 49 is reduced. As can be understood from FIG. 9 , the width S1 in the left-right direction of the space between the protruding portion 54 of the protrusion 50 and the distal end 49 of the guide is smaller than the width S2 in the left-right direction of the wall 223 of the female part 200 , thereby preventing the female part from The wall of 200 enters the space between protrusion 50 and guide 40 . When the protrusion 50 is provided at the guide 40 , the protrusion 54 may protrude toward the distal leg end 29 , 39 .

In some exemplary embodiments including FIGS. 10 to 12 , the receiving portion 60 is provided at the legs 20 , 30 and the protrusion 50 is provided at the guide 40 . Even in this case, advantages similar to those described above can be obtained. That is, when the legs 20, 30 take the first posture, that is, the insertion end 55 of the protrusion 50 is placed adjacent to or partially inserted into the opening portion 65 of the receiving portion 60 before the legs 20, 30 are elastically deformed, the protrusion 50 exists in the Between the distal leg ends 29 , 39 and the guide distal end 49 , and the protrusion 50 has a curved surface 59 m positioned closer to the base 10 as it extends from the guide distal end 49 towards the leg distal ends 29 , 39 . This may facilitate easier coupling between the male part 100 and the female part 200 while inhibiting inaccurate and unintended engagement between the male part 100 and the female part 200 .

In some exemplary embodiments including FIGS. 10 to 12 , the receiving portion 60 of the leg portion 20 , 30 has an opening portion 65 that is open to the inner side in the left-right direction. The guide 40 may be shaped in a cross-section, and may include first and second plates orthogonal to each other. Left and right protrusions 50 are included in the first plate. The legs 20 , 30 may have upper plates 21 , 31 , lower plates 22 , 32 and coupling walls 23 , 33 . One of the upper and lower plates may be omitted. The insertion end 55 of the protrusion 50 may be placed adjacent to the opening portion 65 of the receiving portion 60 provided at the leg 20 , 30 when the leg 20 , 30 takes the first posture.

In some exemplary embodiments including FIGS. 10-12 , the legs 20 , 30 may have curved surfaces 29 m , 39 m arranged continuously with the curved surface 59 m of the protrusion 50 . Specifically, the legs 20, 30 have curved surfaces 29m, 39m which are substantially continuously arcuate with the curved surface 59m of the protrusion 50 positioned at the center in the left-right direction when viewed from above. The curvature between the curved surfaces 29m, 39m and the curved surface 59m may be slightly different, but this does not completely negate the continuity between the two.

In some exemplary embodiments, including FIGS. 13 and 14 , the curved surface 59m may be replaced by a non-curved sloped surface 59n. Even in this case, advantages similar to those described above can be obtained. The slope 59 n extends in the left-right direction, and is inclined approximately linearly between the guide distal end 49 and the leg distal end 29 . The guide 40 has a slope 49 n arranged continuously with the slope 59 n of the protrusion 50 . Specifically, the guide 40 may have slopes 49 n intersecting at an obtuse angle or tapered so as to be continuously arranged with the left and right slopes 59 n of the protrusion 50 . Note that it is conceivable that the slope of the protrusion 50 is combined with the curved surface of the guide 40 . It is also conceivable to combine the curved surface of the protrusion 50 with the inclined surface of the guide 40 .

In some exemplary embodiments including FIGS. 15 and 16 , the receiving part 60 may open in an up-down direction in addition to a left-right direction. In the illustrated specific case, the receiving portion 60 is opened on the lower side in addition to the outer side in the left-right direction. Even in this case, advantages similar to those described above can be obtained. In the illustrated embodiment, the guide 40 includes an upper plate 41 and a partition wall 43 extending downward from the upper plate 41 , and the guide 40 is T-shaped in cross section. The partition wall 43 may be provided at the center of the upper plate 41 in the left-right direction such that the left-right receiving portions 60 for respectively receiving the left-right protrusions 50 are separated in the left-right direction. Various cases are conceivable in which the receiving portion 60 may open on the inside or outside in the left-right direction, and may open on the upper side instead of the lower side.

In some exemplary embodiments including FIGS. 17 and 18 , unlike the above-described exemplary embodiments, the receiving portion 60 has a cover 47 covering the opening portion 65 from the opposite side of the base 10 . Specifically, the receiving portion 60 is not opened on the front side. Even in this case, advantages similar to those described above can be obtained.

In the exemplary embodiment shown in FIGS. 17 and 18 , the opening portion 65 of the receiving portion 60 of the guide 40 is covered by the cover 47 from the front side. The cover 47 is coupled to the upper plate 41 and the partition wall 43 and disposed to cross in the front-rear direction. Clothes or the like may be prevented from being dragged by the protrusion 50 when the protrusion 50 enters the receiving portion 60 and moves in the receiving portion 60 . In FIGS. 17 and 18 , a single rod that is not divided into a front rod 11 and a rear rod 12 is provided at the base 10 . It goes without saying that any number of rods may be employed.

In some exemplary embodiments including FIG. 19 , the protrusion 50 is equal to or smaller than half of the pressed portion 26 , 36 of the leg portion 20 , 30 in the front-rear direction. Miniaturizing the protrusion 50 can contribute to reducing the weight of the male part 100 .

In some exemplary embodiments including FIGS. 20 and 21 , the pressed portions 26 , 36 are coupled to the base 10 via a pair of spring portions 27j , 27h and 37j , 37h . The protrusion 50 coupled to the pressed portion 26 , 36 is coupled to the spring portion 27 h , 37 h arranged inwardly in the left-right direction, and is coupled to the base portion 10 via the spring portion 27 h , 37 h. Even in this case, advantages similar to those described above can be obtained unless there is a technical conflict. Also the spring portion can be reinforced, and the mechanical strength of the leg portions 20, 30 of the male part 100 can be increased.

In the exemplary embodiment shown in Fig. 22, one leg 30 of the pair of legs 20, 30 is omitted. Even in this case, advantages similar to those described above can be obtained unless there is a technical conflict.

Based on the above description, those skilled in the art can add various modifications to the respective embodiments. Reference signs introduced in the claims are by way of reference only and shall not be cited for the purpose of narrowly interpreting the claims.

Claims (10)

1. A buckle male part comprising: base (10); at least one leg (20,30) extending away from said base (10) and having a leg distal end (29,39) furthest from said base (10); and a guide (40) extending away from the base (10) along the at least one leg (20, 30) and having a guide distal end (49) furthest from the base (10); Wherein, a protrusion (50) protruding in the left-right direction is provided at one of the legs (20, 30) and the guide (40), and at the legs (20, 30) and The other one of the guides (40) is provided with a receiving portion (60) capable of receiving the protrusion (50); Wherein, the receiving part (60) has an opening part (65) opened at least in the left-right direction, and the protrusion (50) has the opening part (65) inserted into the receiving part (60) Insertion end (55) in; And Wherein, when the legs (20, 30) take the first posture, that is, the insertion end (55) of the protrusion (50) is in contact with the receiving part before the elastic deformation of the legs (20, 30) When the opening (65) of (60) is placed adjacent to or partially inserted therein, the protrusion (50) exists between the distal end of the leg (29,39) and the distal end of the guide (49). and the protrusion (50) has a curved surface or slope (59m, 59n) shaped to move away from the guide member distal end (49) as the curved surface or slope (59m, 59n) approaches the The distal ends of the legs (29, 39) extend close to the base (10). 2. The buckle male part according to claim 1, wherein said insertion end (55) of said protrusion (50) is partially inserted when said leg (20, 30) assumes said first posture into the opening (65) of the receiving portion (60). 3. Buckle male part according to claim 1 or 2, wherein said protrusion (50) comprises a protrusion protruding towards said leg distal end (29, 39) or said guide distal end (49) Ministry (54). 4. A buckle male part according to claim 1 or 2, wherein said leg portion (20, 30) comprises a spring portion (27, 37) directly or indirectly coupled to said base portion (10) and coupled to The pressed portion (26, 36) of the spring portion (27, 37); and wherein the protrusion (50) is coupled to the pressed portion (26, 36) of the leg portion (20, 30) not coupled to said spring portion (27, 37). 5. Male buckle part according to claim 1 or 2, wherein said leg portion (20, 30) comprises a spring portion (27, 37) directly or indirectly coupled to said base portion (10) and coupled to The pressed part (26, 36) of the spring part (27, 37); wherein said guide (40) is coupled to said base (10) via a bifurcation (46); and Wherein, the spring part (27, 37) and/or the pressed part (26, 36) protrudes toward the joint part between the guide (40) and the bifurcated part (46) and has a The width in the left-right direction is increased by the raised position of the spring part (27, 37) and/or the pressed part (26, 36). 6. The buckle male part according to claim 1 or 2, wherein said guide (40) is provided with said receiving portion (60), and said guide (40) comprises a ) extending at least one plate (41, 42) and a partition wall (43) coupled to said plate (41, 42). 7. The buckle male part according to claim 1 or 2, wherein the guide (40) has a width in the left-right direction that increases as it extends away from the base (10). 8. A buckle male part according to claim 1 or 2, wherein said buckle male part comprises a left and right pair of legs (20, 30), each said leg extending away from said base (10) and having a distal leg (29,39) furthest from said base (10). 9. The buckle male part according to claim 1 or 2, wherein said leg (20, 30) or said guide (40) has a curved or inclined surface ( 59m, 59n) continuously arranged curved surface or slope (49m, 49n, 29m, 39m). 10. A buckle comprising a buckle male part (100) according to any one of claims 1 to 9 and a female part (200) coupled to the buckle male part (100).