Connecting piece

Abstract

The invention provides a synthetic resin connector (10). The synthetic resin connector (10) is integrally provided with a base (12) with a through hole (18); a hook (46) forming an accommodation space (16) having an opening (14) for the passage of an article (58); and an opening / closing body (26) that is rotatably supported with respect to the base (12), opens the opening (14) when rotated in one direction, and closes the opening (14) when rotated in the other direction. The opening / closing body (26) is integrally provided with a spring part (22) which always applies force in the direction of closing the opening (14). The spring portion (22) extends from a side edge portion (12c) of the base (12) and is continuous with the opening and closing body (26). The opening / closing body (26) is provided with a shaft section (30) that intersects the direction in which the opening (14) is opened / closed. The base (12) is provided with a shaft hole (20) into which the shaft part (30) is rotatably fitted. The base (12) has two symmetrical surfaces with the center of the thickness of the plate-shaped body as the center axis, and is provided with a groove (40) for accommodating at least a part of the spring part (22) along the approximately center line of the thickness on the side edge parts (12a, 12c) of the base (12).

Description

Technical Field

[0001] The present invention relates to a connecting piece for connecting different objects or parts to each other. Background Art

[0002] Conventionally, the connecting member for connecting a pair of articles has various shapes. For example, the hook of Patent Document 1 is composed of a roughly annular annular member and a shell member into which the annular member is inserted. The annular member is partially cut off, and a rod portion that is elastically swingable is formed in another portion, and the locking body can be inserted into the inside by the opening and closing portion that is opened and closed by the elastic swing of the rod portion. The shell member, when the annular member is inserted, restricts the opening of the rod portion to the outside by abutment.

[0003] [Prior art literature]

[0004] [Patent Document]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 2009-2389

[0006] The connecting member of the above-mentioned background technology is composed of two parts, an annular part and a shell part, and its manufacturing cost is high. In addition, since one of the connected pair of articles is mounted on the annular part and the other is mounted on the shell part, the annular part and the shell part may be separated when a strong force is applied to the articles in a direction away from each other. Furthermore, the locking part where the front end of the rod is locked is not locked in the direction in which the tension generated by the pair of articles is applied. Therefore, the tension applied between the pair of articles is concentrated on one side of the annular part, which may cause the annular part to deform or break. Summary of the invention

[0007] The present invention has been made in view of the above-mentioned problems in the background art, and an object of the present invention is to provide a connector which is composed of one component, thereby simplifying the component structure, reducing the manufacturing cost, and having a high mounting strength of the article.

[0008] The present invention is a connecting piece made of synthetic resin, which integrally comprises: a base having a through hole; a hook forming a storage space having an opening for passing articles; an opening and closing body, which is rotatably supported relative to the base and opens the opening when rotating in one direction and closes the opening when rotating in the other direction; and a spring portion, which continuously applies force to the opening and closing body in the direction in which the opening and closing body closes the opening, the spring portion extends from the side edge portion of the base and is continuous with the opening and closing body, the opening and closing body has an axis portion, and the base has an axis hole in which the axis portion is rotatably engaged.

[0009] The base is a plate-like body, the through hole and the accommodation space are formed by penetrating the plate-like body, a groove is provided along the side edge of the base, and when the shaft portion is engaged in the shaft hole, at least a part of the spring portion is accommodated in the groove.

[0010] Either one of the opening and closing body and the hook has a hook portion, and the other of the hook and the opening and closing body has a hook portion accommodating portion, into which the hook portion is inserted when the opening is closed by the opening and closing body.

[0011] The through hole is formed between the opening and the shaft hole, and a recess is formed in the opening and closing body, and the recess overlaps with the through hole when the opening and closing body rotates in the direction of opening the opening. Furthermore, the shaft hole is preferably located at a position covered by the belt passing through the through hole.

[0012] The connecting piece of the present invention makes the component structure simple and the manufacturing cost is also low. In addition, the appearance is refreshing, and although it looks small, the installation strength of the article is high. Furthermore, the opening action of the opening and closing body is light and the operability is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a perspective view of a connecting tool according to one embodiment of the present invention.

[0014] Figure 2 These are a left side view (a) and a front view (b) of the connecting tool according to the present embodiment.

[0015] Figure 3 This indicates a state where no force is applied to the spring portion of the coupling of this embodiment. Figure 2 (a) is a longitudinal cross-sectional view along line AA.

[0016] Figure 4 The spring portion of the connector of this embodiment is pressed to be in use. Figure 2 (a) is a longitudinal cross-sectional view along line BB.

[0017] Figure 5 This is a diagram showing a state in which the opening of the connector of this embodiment is opened. Figure 2 (a) is a longitudinal cross-sectional view along line BB.

[0018] Figure 6 It is a front view showing a modification example of the coupling tool according to the present embodiment.

[0019] Figure 7 It is a longitudinal sectional view showing another modified example of the coupling tool according to the present embodiment.

[0020] [Description of symbols]

[0021] 10: Connector; 12: Base; 12c: Side edge; 14: Opening; 16: Accommodation space; 18: Belt through hole; 20: Shaft hole; 22: Spring portion; 26: Opening and closing body; 26a: Base end portion; 26b: Inner side surface; 26d: Front end portion; 30: Shaft portion; 32: Recessed portion; 38: Hook portion; 40: Groove; 46: Hook; 46b: Front end portion; 50: Hook accommodating portion; 52: Protrusion; 56: Belt; 58: Article. DETAILED DESCRIPTION

[0022] Embodiments of the present invention will be described below based on the drawings. Figure 1 to Figure 5 One embodiment of the present invention is shown. The coupling member 10 of this embodiment is integrally molded from a synthetic resin having elasticity.

[0023] The connector 10 has a base 12 of a plate-like body. The base 12 has a pair of side edges 12a and 12b extending in the up-down direction and a pair of side edges 12c and 12d extending in the left-right direction and intersecting the side edges 12a and 12b. The base 12 has a center in the front-to-back direction as a central axis, and both surfaces are symmetrical. Hereinafter, the direction orthogonal to the two surfaces of the plate-like body will be referred to as the front-to-back direction. In addition, the direction along the pair of side edges 12a and 12b will be referred to as the up-to-down direction. In addition, the direction along the pair of side edges 12c and 12d will be referred to as the left-to-right direction. The pair of side edges 12c and 12d are substantially parallel to each other, and the side edge 12d is longer than the side edge 12c. The base 12 has: a plate surface portion 12e, which is surrounded by the side edges 12a, 12b, 12c, and 12d; and a thick wall portion 13, which bulges in the front-to-back direction along the side edges 12a, 12b, 12c, and 12d. The thick wall portion 13 is formed with a substantially constant width and is thicker than the plate surface portion 12 e.

[0024] On the plate surface 12e, a storage space 16 is formed through the plate surface 12e in the front-back direction. The storage space 16 is a trapezoidal shape with the side located near the side edge 12c as the upper side and the side located near the side edge 12d as the lower side. The upper side is shorter than the lower side. One end of the upper side reaches the side edge 12a, and the other end of the upper side is located near the center of the left-right direction of the base 12. The hypotenuse connecting the end of the upper side located near the center of the base 12 and the end of the side edge 12b side of the lower side intersects with the upper side at an obtuse angle and intersects with the lower side at an acute angle. The opening 14 is cut off from the side edge 12a and the side on the opposite side of the hypotenuse of the storage space 16. As a result, the storage space 16 is connected to the outside of the side edge 12a. The end of the opening 14 on the side edge 12d is located slightly away from the side edge 12d. That is, the part of the side edge 12a that is continuous with the side edge 12d is cut off and remains. This portion serves as a front end portion 46b of a hook 46 described later.

[0025] The base 12 has a through hole 18 extending substantially parallel to the side edge 12c between the upper side of the storage space 16 and the side edge 12c. An axial hole 20 is provided between the through hole 18 and the side edge 12c, that is, at a position on the opposite side of the storage space 16 across the through hole 18 and close to the side edge 12a. The shaft 30 described later is rotatably embedded in the axial hole 20. The through hole 18 and the axial hole 20 penetrate the plate surface 12e in the front-rear direction.

[0026] The spring portion 22 is integrally and continuously provided on the base 12. The spring portion 22 is a long rod-shaped body, and one end of the spring portion 22 in the longitudinal direction is connected to the base 12. The spring portion 22 is provided so that it can be elastically deformed in a direction intersecting the front-rear direction of the base 12 when a force greater than a certain value is applied.

[0027] like Figure 3 As shown, the spring portion 22 has: a first portion 22a, which is located in the middle in the length direction; a second portion 22b, which is continuous from one end of the first portion 22a and bent relative to the first portion 22a; and a third portion 22c, which is continuous from the other end of the first portion 22a and bent relative to the first portion 22a. The second portion 22b is continuous with the base 12 on the side of the side edge portion 12c. The base 12 has a space 24 that is recessed in the upward and downward directions on the side of the side edge portion 12c. The second portion 22b is arranged in the space 24. The second portion 22b can be freely deformed in the space 24. The first portion 22a is inclined in a direction away from the side edge portion 12c while extending toward the side of the side edge portion 12a. The third portion 22c is arranged at a predetermined interval from the side edge portion 12c. The boundary between the first portion 22a and the second portion 22b and the boundary between the first portion 22a and the third portion 22c are bent. When no force is applied to the spring portion 22, as shown Figure 1 and Figure 3 As shown, it is a shape extending to the outside of the side edge portion 12c.

[0028] An opening and closing body 26 for opening and closing the opening 14 is integrally connected to the end of the third portion 22c of the spring portion 22. The opening and closing body 26 is a rod-shaped body that is longer in the direction of the extension line of the third portion 22c. The opening and closing body 26 has: a base end portion 26a that is continuous with the third portion 22c of the spring portion 22; and a front end portion 26d that is located on the opposite side of the length direction of the opening and closing body 26 relative to the base end portion 26a. In addition, the opening and closing body 26 has: an outer side surface 26c that is continuous with the third portion 22c of the spring portion 22 on the same plane and extends in the length direction of the opening and closing body 26; and an inner side surface 26b that is located on the opposite side of the outer side surface 26c.

[0029] The opening and closing body 26 has a length capable of closing the opening 14. The area from the middle of the length direction of the opening and closing body 26 to the base end 26a side is thinner than the thickness of the thick wall portion 13 of the base 12. The area from the middle of the length direction of the opening and closing body 26 to the front end 26d side has a portion on the outer side 26c side and a portion on the inner side 26b side with different thicknesses. The portion on the outer side 26c side is thicker than the portion on the inner side 26b side and has a thickness substantially the same as the thick wall portion 13 of the base 12. The portion on the inner side 26b side is thinner than the portion on the outer side 26c side and is thicker than the area on the base end 26a side. The dimension in the width direction orthogonal to the length direction and thickness direction of the opening and closing body 26, that is, the interval between the inner side 26b and the outer side 26c is larger than the dimension in the direction orthogonal to the length direction and thickness direction of the third portion 22c. As a result, the portion on the inner side 26b side of the opening and closing body 26 protrudes further inward than the third portion 22c. In addition, the portion of the inner side surface 26b side that is continuous with the front end portion 26d extends further inward. In addition, the thickness direction of the opening and closing body 26 is the same direction as the front-rear direction of the base 12.

[0030] The opening and closing body 26 has a shaft portion 30 at the base end portion 26a. The shaft portion 30 is cylindrical with a central axis parallel to the thickness direction of the base 12, and protrudes in the thickness direction from the opening and closing body 26. The shaft portion 30 is rotatably fitted in the shaft hole 20 of the base 12.

[0031] The opening and closing body 26 has a recessed portion 32 at the base end portion 26a that is connected to the through hole 18. The recessed portion 32 is U-shaped and opens on the inner side surface 26b. When the opening and closing body 26 rotates in the direction of opening the opening 14, the recessed portion 32 is formed into a shape that is roughly consistent with the edge of the through hole 18, or is formed into a shape larger than the edge of the through hole 18. As a result, the opening and closing body 26 overlaps with the through hole 18, thereby preventing a portion of the through hole 18 from being blocked by the opening and closing body 26.

[0032] The opening and closing body 26 has a locking recess 34 whose wall thickness in the thickness direction is thinned at the front end portion 26d. A pair of locking recesses 34 are symmetrically arranged in the thickness direction of the opening and closing body 26. The locking recess 34 is cut so as to open to the outer side surface 26c side. The cut and remaining portion between the locking recess 34 and the inner side surface 26b becomes an abutment portion 36 that can abut against the later-described engaging claw 48 from the accommodating space 16 side when the opening and closing body 26 closes the opening 14. In addition, the opening and closing body 26 has a hook portion 38 arranged adjacent to the locking recess 34. The hook portion 38 is connected to the abutment portion 36 and extends toward the outer side surface 26c side.

[0033] The base 12 has a groove 40 substantially along the center line of the thickness of the base 12 at the intersection of the side edge 12a and the side edge 12c and between the position where the spring portion 22 and the base 12 are connected to the opening 14. Figure 1 , Figure 3 As shown, the groove 40 has a portion that is connected to the side edge portion 12a from the deformation space 24 and a portion that is connected to the opening 14 from the side edge portion 12c. As a result, the groove 40 forms an L-shaped space. In addition, the groove 40 is also connected to the shaft hole 20, the side portion of the side edge portion 12a with the through hole 18, and the accommodating space 16. The groove 40 has a pair of inner side surfaces 40a that are roughly parallel to the plate surface portion 12e. Each inner side surface 40a has a step portion 42 protruding in the front and rear directions around the shaft hole 20. In addition, each inner side surface 40a has an inclined surface 44 that is inclined in a direction away from each other from the shaft hole 20 toward the side edge portion 12a. The step portion 42 and the inclined surface 44 become guides for guiding the shaft portion 30 to the shaft hole 20 when the shaft portion 30 of the opening and closing body 26 is engaged with the shaft hole 20 of the base 12.

[0034] The base 12 has a hook 46 that forms a storage space 16 between the side edge portion 12d and the side edge portion 12a continuous with the side edge portion 12d. The hook 46 is an L-shaped rod-shaped body. The hook 46 has a base end portion 46a as one end in the longitudinal direction and a front end portion 46b on the opposite side to the one end. The base end portion 46a is connected to the end of the side edge portion 12b. The front end portion 46b is located on the side of the opening 14 and is provided with an engaging claw 48. A pair of engaging claws 48 are arranged at intervals along the front-to-back direction of the base 12. The space between each engaging claw 48 becomes a hook accommodating portion 50 that accommodates and positions the hook portion 38 of the opening and closing body 26. Each engaging claw 48 has a protrusion 52 protruding toward the hook accommodating portion 50 on the opposite surface to each other. In addition, the opening and closing body 26 can also have a hook accommodating portion, and the hook 46 can also have a hook portion.

[0035] The connecting member 10 of this embodiment is integrally formed of a synthetic resin having moderate elasticity. Figure 1 , Figure 3 As shown, the spring portion 22 and the opening and closing body 26 are in a state of protruding to the side of the base 12. When the connecting piece 10 is used, the spring portion 22 is pressed along the side edge portion 12a and the side edge portion 12c of the base 12. As a result, the spring portion 22 is elastically deformed in a manner to reduce the intersection angle between the first portion 22a and the second portion 22b and the intersection angle between the first portion 22a and the third portion 22c, while being accommodated in the groove 40. Then, the shaft portion 30 moves along the inclined surface 44 and the step portion 42. As a result, the shaft portion 30 is fitted into the shaft hole 20.

[0036] Next, the spring portion 22 is pressed in the front-to-back direction and the left-to-right direction in such a manner that the front end portion 26d of the opening and closing body 26 does not interfere with the engaging claw 48 of the base 12, thereby being elastically deformed. At this time, the spring portion 22 is elastically deformed in the front-to-back direction, and is elastically deformed in such a manner as to reduce the intersection angle between the first portion 22a and the second portion 22b of the spring portion 22 and the intersection angle between the first portion 22a and the third portion 22c. Thus, the front end portion 26d avoids the engaging claw 48 and enters the accommodating space 16. Furthermore, if the pressing in the front-to-back direction is released and the pressing in the left-to-right direction is released, the opening and closing body 26 rotates around the shaft portion 30 by the elastic force of the spring portion 22. Thus, the hook portion 38 of the opening and closing body 26 is inserted into the hook portion accommodating portion 50 of the front end portion 46b of the hook 46. Furthermore, the abutment portion 36 contacts the engaging claw 48.

[0037] At this time, since the protrusions 52 of the pair of engaging claws 48 are located in the locking recesses 34, and the hooks 38 are located in the hook accommodating portions 50, the opening and closing body 26 is positioned in the front-to-back direction of the base 12. In addition, since the abutment portions 36 are in contact with the engaging claws 48, the opening and closing body 26 will not deviate in the left-right direction orthogonal to the front-to-back direction of the base. In addition, since the shaft portion 30 is engaged with the shaft hole 20, the opening and closing body 26 will not move in the up-down direction of the base 12.

[0038] Therefore, if Figure 2 , Figure 4 As shown, the opening and closing body 26 is positioned at the opening 14 of the base 12, and is in a state of closing the opening 14. That is, the connecting piece 10 is in a use state. The spring portion 22 attempts to act to increase the intersection angle between the first portion 22a and the second portion 22b and the intersection angle between the first portion 22a and the third portion 22c. Due to the elastic force generated by this action, the front end portion 26d side of the opening and closing body 26 attempts to rotate around the axis of the shaft portion 30. As a result, the abutment portion 36 is always pressed against the engaging claw 48. Therefore, the opening and closing body 26 will not accidentally fall off the hook 46.

[0039] Next, the method of using the connector 10 is described. First, pass the belt 56 through the belt through hole 18. The belt 56 is folded back, and the folded back portion is fixed by sewing or any fixing parts not shown in the figure. The belt 56 passing through the belt through hole 18 extends in the upward and downward directions over the side edge 12a of the base 12. Therefore, when the belt 56 has a prescribed size in the left-right direction, the belt 56 can cover the axial hole 20 provided between the belt through hole 18 and the side edge 12c, and the space 24 recessed in the upward and downward directions on the side of the side edge 12c. As a result, when the connector 10 is used, the axial hole 20 and the space 24 will not be visually recognized, so that it can be expected that the aesthetics of the connector 10 when in use will be improved.

[0040] Next, hang the object 58 on the hook 46. The object 58 is, for example, a loop to which the belt is folded back and fixed or a hook of the same shape as the hook 46. First, Figure 5 As shown, the opening and closing body 26 is pressed toward the inner side of the storage space 16. As a result, the opening and closing body 26 rotates in one direction with the shaft portion 30 as the center while elastically deforming the spring portion 22. In addition, the hook portion 38 is pulled out from the hook portion storage portion 50. As a result, the opening and closing body 26 opens the opening 14, and the article 58 passes through the opening 14 and is hung on the hook 46. Here, if the pressing force is released, the opening and closing body 26 rotates in another direction opposite to one direction with the shaft portion 30 as the center by the elastic force of the spring portion 22. As a result, the opening and closing body 26 closes the opening 14. Since the opening and closing body 26 is always urged toward the engaging claw 48 by the spring portion 22, the opening 14 will not be accidentally opened. Moreover, since the protrusion 52 of the engaging claw 48 is located in the locking recess 34 of the opening and closing body 26, and the hook portion 38 is inserted into the hook portion storage portion 50, the opening and closing body 26 is locked to the hook 46 in the front-to-back direction and the up-down direction of the base 12. Thus, the opening and closing body 26 will not accidentally fall off the hook 46 .

[0041] like Figure 5 As shown, when the opening 14 is opened by the opening 26, the recess 32 of the opening 26 is consistent with the hole edge of the through hole 18. Thus, the opening 26 does not overlap with the through hole 18, and the opening 26 presses the belt 56 passing through the through hole 18 without displacing it.

[0042] When a strong force is applied to the article 58 hung on the hook 46, the front end 46b of the hook 46 is elastically deformed in a direction away from the front end 26d of the closing body 26. At this time, since the hook 38 is inserted into the hook receiving portion 50, a large engagement area between the hook 38 and the hook receiving portion 50 can be ensured. Therefore, the opening and closing body 26 and the hook 46 are firmly engaged with respect to the vertical force of the base 12.

[0043] The position where the spring portion 22 is continuous with the base 12 may also be a position other than the above-mentioned embodiment. Figure 6 As shown, the second portion 22b of the spring portion 22 may also be connected to the boundary portion between the side edge portion 12b and the side edge portion 12c of the base 12. The base 12 has a space 24 recessed at the boundary between the side edge portion 12b and the side edge portion 12c. The second portion 22b is disposed in the space 24. The first portion 22a of the spring portion 22 has a length substantially the same as that of the side edge portion 12c of the base 12.

[0044] In addition, the front end portion 26d of the opening and closing body 26 may also be a simple shape that only contacts the front end portion 46b of the hook 46. Figure 7As shown, the opening and closing body 26 may not have the retaining recess 34, the abutment portion 36, and the hook portion 38 as in the above-mentioned embodiment. Instead, the opening and closing body 26 has a retaining recess 60 on the outer side surface 26c on the side of the front end portion 26d. The engaging claw 48 of the hook 46 does not have the hook accommodating portion 50 and the protrusion 52 as in the above-mentioned embodiment. Instead, the retaining claw 48 has a retaining recess 62 in the portion opposite to the opening and closing body 26. When the opening and closing body 26 closes the opening 14, the retaining recess 60 abuts against the retaining recess 62.

[0045] In addition, the connecting piece of the present invention is not limited to the above-mentioned embodiment. The shape of the base can also be a polygon other than a rectangle or an ellipse, etc., and can be freely changed. In addition, the spring portion can also be changed according to the shape of the base. The connected object can also be an object other than a ring or a hook that folds the belt back. The type or color, surface treatment, transparency, etc. of the synthetic resin used as the material of the connecting piece can be freely changed and can be appropriately changed according to the design or necessary functions.

Claims

1. A synthetic resin connecting member (10), the connecting member (10) integrally comprising: A base (12) having a through hole (18); a hook (46) forming a receiving space (16) having an opening (14) for passing an object (58); an opening and closing body (26) which is rotatably supported relative to the base (12) and opens the opening (14) when rotating in one direction and closes the opening (14) when rotating in the other direction; as well as The spring portion (22) continuously applies force to the opening and closing body (26) in a direction in which the opening and closing body (26) closes the opening (14). The connecting member (10) is characterized in that: The spring portion (22) extends from the base (12) and is continuous with the opening and closing body (26). The opening and closing body (26) has a shaft portion (30). The base (12) has an axial hole (20) in which the shaft portion (30) is rotatably fitted.

2. The connecting piece according to claim 1, characterized in that: The base (12) is a plate-like body, and the through hole (18) and the accommodating space (16) are formed by penetrating the plate-like body. The base (12) has a groove (40) along the side edge portion (12a, 12c), and when the shaft portion (30) is fitted into the shaft hole (20), at least a portion of the spring portion (22) is accommodated in the groove (40).

3. The connecting piece according to claim 1 or 2, characterized in that: Either one of the opening and closing body (26) and the hook (46) has a hook portion (38), and the other of the hook (46) and the opening and closing body (26) has a hook portion accommodating portion (50). When the opening (14) is closed by the opening and closing body (26), the hook (38) is inserted into the hook accommodating portion (50).

4. The connecting piece according to claim 1 or 2, characterized in that: The through hole (18) is formed between the opening (14) and the axial hole (20), and a recess (32) is formed in the opening and closing body (26). The recess (32) overlaps with the through hole (18) when the opening and closing body (26) is rotated in the direction of opening the opening (14).

5. The connecting piece according to claim 1 or 2, characterized in that: The shaft hole (20) is provided at a position covered by a belt (56) passing through the belt through hole (18).

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