Fastener

Abstract

To provide a fastener which can secure sufficient attachment strength while inhibiting twisting between an article and a strap.SOLUTION: A fastener 1 includes: a plug 10 that has a shape of a rotating body; and a socket 20 into which the plug 10 is inserted in an axial direction. The socket 20 includes: a strap attachment portion 29 to which a strap is attached; and a socket body 21 that forms a housing space S1 in which the plug 10 is disposed. The socket body 21 includes: a spring part 23 that has a pair of ends 231, 232 arranged side by side in the axial direction and faces one side in a thickness direction orthogonal to the axial direction with respect to the housing space S1; a pair of supports 24, 25 that support the pair of ends 231, 232 of the spring part 23, respectively; and a stopper part 220 that faces the other side in the thickness direction with respect to the housing space S1. The spring part 23 has, between the pair of ends 231, 232, a pressing portion 233 that presses the plug 10 disposed in the housing space S1 against the stopper part 220.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a fastener for enabling a strap to be attached or detached from an item. [Background technology]

[0002] Conventionally, straps that are attached to objects such as cameras to suspend the objects have been widely used, and fasteners exist for easily attaching and detaching straps to objects. For example, the fastener disclosed in Patent Document 1 includes a socket to which the strap is fastened and a plug that can be inserted and removed from the socket, and a string that is fastened to the object is fixed to the plug. A user can remove the strap from the object by removing the plug from the socket. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] China Utility Model No. 218605357 Summary of the Invention [Problem to be solved by the invention]

[0004] When using the above-mentioned fastener, the plug may be inserted into the socket with a twist occurring between the article and the strap. In the fastener of Patent Document 1, the plug is configured to be rotatable relative to the socket, thereby suppressing such twisting. However, in the fastener of Patent Document 1, although the socket uses a magnet to guide and hold the plug, making it easy to attach and detach, if an unintended external force is applied from the strap or the like that tilts the plug, the plug may suddenly fall off, making it difficult to ensure sufficient attachment strength in actual use.

[0005] An object of the present invention is to provide a fastener that can ensure sufficient attachment strength while suppressing twisting between an article and a strap. [Means for solving the problem]

[0006] [1] A fastener according to one aspect of the present invention comprises a plug having a rotor shape and a socket into which the plug is inserted along an axial direction, the socket comprising a strap attachment portion to which a strap is attached, and a socket body portion forming a storage space in which the plug is placed, the socket body portion comprising: a spring portion having a pair of ends aligned in the axial direction and facing one side in a thickness direction perpendicular to the axial direction relative to the storage space, a pair of support portions supporting the pair of ends of the spring portion, and a stopper portion facing the other side in the thickness direction relative to the storage space, the spring portion having a pressing portion between the pair of ends for pressing the plug placed in the storage space against the stopper portion.

[0007] [2] In the above item [1], it is preferable that the spring portion and the pair of support portions are integrally formed.

[0008] [3] In the above [1] or [2], it is preferable that the socket body further comprises a pair of side wall portions arranged in a width direction perpendicular to each of the axial direction and the thickness direction, with the accommodating space therebetween, and that the pair of side wall portions have side wall ends curved inward in the width direction so as to form the stopper portion.

[0009] [4] In the above [3], it is preferable that the socket body further includes a pair of protrusions protruding inward in the width direction from the pair of side wall portions on one side of the axial direction relative to the accommodating space, and that a rear end portion in the insertion direction of the plug placed in the accommodating space is able to abut against the pair of protrusions in the axial direction.

[0010] [5] In the above item [4], it is preferable that the pressing portion applies pressure to the rear end portion of the plug.

[0011] [6] In any of [3] to [5] above, the side wall ends of the pair of side wall portions form an operation opening therebetween for exposing the plug from the accommodating space to one side in the thickness direction, and it is preferable that the width dimension of a first opening region of the operation opening, which exposes a rear end of the plug in the insertion direction, is wider than the width dimension of a second opening region of the operation opening, which exposes a front end of the plug in the insertion direction.

[0012] [7] In any of the above items [3] to [6], it is preferable that the plug comprises a cylindrical plug body and a flange portion protruding radially outward from the plug body.

[0013] [8] In any of [3] to [7] above, it is preferable that the socket further includes a lid portion attached to the socket main body, and the lid portion includes a plate portion and a pair of plug support portions protruding from the plate portion to the one side in the thickness direction so as to pass through gaps between the pair of side wall portions and the spring portion. Effect of the Invention

[0014] According to the present invention, it is possible to provide a fastener that can ensure sufficient attachment strength while suppressing twisting between an article and a strap. [Brief description of the drawings]

[0015] [Figure 1] 1 is a perspective view showing a fastener according to a first embodiment of the present invention. [Diagram 2] FIG. 2 is a front view showing the socket of the first embodiment. [Diagram 3] FIG. 3 is a cross-sectional view taken along line III-III in FIG. 2 . [Figure 4] 4 is a cross-sectional view taken along line IV-IV in FIG. 2 . [Diagram 5] FIG. 4 is a side view showing the socket of the first embodiment. [Figure 6] FIG. 4 is a rear view showing the socket of the first embodiment. [Figure 7]5A to 5C are diagrams illustrating the operation of the fastener of the first embodiment. [Figure 8] 5A to 5C are diagrams illustrating the operation of the fastener of the first embodiment. [Figure 9] FIG. 2 is a front view showing the fastener of the first embodiment. [Figure 10] FIG. 6 is a cross-sectional view showing a socket of a fastener according to a second embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] [First embodiment] A first embodiment of the present invention will be described with reference to FIGS. As shown in Fig. 1, the fastener 1 of this embodiment includes a plug 10 and a socket 20 into which the plug 10 is inserted. An article fastening portion (for example, a string 30 of this embodiment) is attached to the plug 10. This string 30 is attached to any article such as a camera. A strap is attached to the socket 20 so that it can be worn around a part of the user's body (for example, around the neck). By inserting and removing the plug 10 from the socket 20, the user can easily attach and detach the strap to and from the article.

[0017] Hereinafter, the width direction (left-right direction) of fastener 1 is defined as the Y direction, the thickness direction (up-down direction) of fastener 1 perpendicular to the Y direction is defined as the Z direction, and the direction perpendicular to the X direction and Y direction is defined as the X direction (axial direction). One side of the X direction is defined as the +X direction, the other side of the X direction is defined as the -X direction, one side of the Z direction is defined as the +Z direction, and the other side of the Z direction is defined as the -Z direction. In the following description, the XYZ directions are used based on the state in which plug 10 is inserted into socket 20.

[0018] (Plug 10 Configuration) The plug 10 has an arbitrary solid-of-rotation shape, and the direction along the central axis of the plug 10 corresponds to the X direction (axial direction) in this embodiment. Specifically, as shown in Fig. 1, the plug 10 includes a plug body 11 having a cylindrical shape, and an annular flange portion 12 provided on the plug body 11. Hereinafter, one end portion on the +X side of the plug 10 (the tip portion in the insertion direction of the plug 10) will be referred to as a plug tip portion 101, and the other end portion on the -X side of the plug 10 (the rear end portion in the insertion direction of the plug 10) will be referred to as a plug rear end portion 102.

[0019] A string 30, which is an article attachment part of this embodiment, is attached to the plug front end part 101. The string 30 forms a loop (not shown), and both ends 31, 32 of the string 30 are connected to the plug front end part 101. The flange part 12 protrudes radially outward from the plug body part 11 at the plug rear end part 102.

[0020] The specific configuration of the plug 10 and the method of connecting the string 30 to the plug 10 are not particularly limited. For example, the plug 10 of this embodiment is configured by combining a tubular member 13 that forms most of the plug body 11 and the flange 12 with a cover member 14 that closes the opening of the tubular member 13. Both ends 31, 32 of the string 30 may be connected to the plug 10 by inserting the string 30 through a hole (not shown) at the bottom of the tubular member 13 and forming a knot in the internal space of the tubular member 13. Alternatively, both ends 31, 32 of the string 30 may be connected to the plug 10 by being insert molded when the plug 10 is resin molded.

[0021] (Socket 20 configuration) The configuration of the socket 20 will be described with reference to FIGS. The socket 20 includes a socket body 21, a lid 28 attached to the socket body 21, and a strap attachment portion 29 extending from the socket body 21. In this embodiment, the socket body 21 and the strap attachment portion 29 are integrally molded from resin. The lid 28 is molded from resin and attached to the socket body 21.

[0022] 2, the socket body 21 forms an accommodation space S1 that accommodates the plug 10, and a guide space S2 that guides the plug 10 into the accommodation space S1. Specifically, the socket body 21 includes a pair of side wall portions 22A, 22B facing each other in the Y direction, a spring portion 23 disposed between the pair of side wall portions 22A, 22B and extending along the X direction, a pair of support portions 24, 25 that support the spring portion 23, a bottom wall portion 26 that connects +X side ends of the pair of side wall portions 22A, 22B, and a pair of protrusions 27A, 27B that protrude inward in the Y direction from the pair of side wall portions 22A, 22B.

[0023] In the following description, the socket body 21 has a first region AR1 that forms the accommodation space S1 and a second region AR2 that forms the guide space S2. The first region AR1 and the second region AR2 are aligned in the X direction.

[0024] The side walls 22A, 22B face each other in the Y direction and have a wall shape extending across the first area AR1 and the second area AR2. The side walls 22A, 22B in the first area AR1 are arranged with an accommodation space S1 therebetween, and the side walls 22A, 22B in the second area AR2 are arranged with a guide space S2 therebetween.

[0025] 3, the side wall portions 22A, 22B of the first area AR1 have side wall end portions 221 which are ends on the +Z side. The side wall end portions 221 of the side wall portions 22A, 22B have a shape curved inward in the Y direction and form a contact surface 222 facing the accommodation space S1 in the -Z direction. This contact surface 222 can abut against the plug 10 placed in the accommodation space S1 in the -Z direction. Such side wall end portions 221 of the side wall portions 22A, 22B constitute a stopper portion 220 which faces the spring portion 23 across the accommodation space S1.

[0026] In the first region AR1, the sidewall end portions 221 of the sidewall portions 22A and 22B form an operation opening A1 between them, which exposes the plug 10 from the accommodation space S1 in the +Z direction. Here, as shown in FIG. 1, a part of the -X side of the sidewall portions 22A and 22B of the first region AR1 has a cut shape cut in the -Z direction. As a result, the operation opening A1 includes a plurality of opening regions having different Y-direction dimensions. Specifically, as shown in FIG. 8, the Y-direction dimension D1 of the first opening region A11 exposing the plug rear end portion 102 of the operation opening A1 is wider than the Y-direction dimension D2 of the second opening region A12 exposing the plug front end portion 101.

[0027] The side walls 22A and 22B of the second region AR2 have a shape that curves outward in the Y direction as it approaches the -X direction, as shown in Fig. 2. Also, the Z direction dimension of the side walls 22A and 22B of the second region AR2 becomes smaller as it approaches the -X direction, as shown in Fig. 1.

[0028] As shown in Fig. 3, the spring portion 23 is disposed between a pair of side wall portions 22A, 22B so as to face the +Z side of the accommodation space S1. As shown in Fig. 4, the spring portion 23 has a leaf spring shape extending along the X direction, and has a pair of end portions 231, 232 aligned in the X direction. Hereinafter, of the pair of end portions 231, 232, the end portion 231 disposed on the +X side will be referred to as the spring tip portion 231, and the end portion 232 disposed on the -X side will be referred to as the spring rear end portion 232. In this embodiment, the spring portion 23 extends from the first area AR1 to the second area AR2 of the socket 20, with the spring tip portion 231 being disposed in the first area AR1 and the spring rear end portion 232 being disposed in the second area AR2.

[0029] Moreover, the spring portion 23 has a bent portion 23C bent in the Z direction between the spring tip portion 231 and the spring rear end portion 232. In the spring portion 23, a portion from the spring tip portion 231 to the bent portion 23C (hereinafter, a first extension portion 234) is disposed along the X direction. In addition, in the spring portion 23, a portion from the bent portion 23C to the spring rear end portion 232 (hereinafter, a second extension portion 235) is disposed inclined with respect to the X direction so as to approach the -Z direction as it approaches the -X direction. Therefore, the spring rear end portion 232 is disposed on the -Z side of the spring tip portion 231.

[0030] The spring portion 23 is elastically deformable in the -Z direction around the bent portion 23C. As will be described later in detail, when the plug 10 is placed in the accommodation space S1, the spring portion 23 is pressed by the plug 10 and elastically deforms in the -Z direction. For this reason, the plug 10 has a pressing portion 233 that applies a pressing force in the +Z direction to the plug 10 placed in the accommodation space S1 by its elastic force. The pressing portion 233 is a portion on the +X side with respect to the bent portion 23C, and presses the plug 10 placed in the accommodation space S1, particularly the plug rear end portion 102, against the stopper portion 220.

[0031] As shown in Fig. 2, the support portions 24, 25 are disposed at positions spaced apart from each other in the X direction and have plate shapes disposed along the X direction and the Y direction. The support portions 24, 25 connect the pair of side walls 22A, 22B. Specifically, the support portion 24 connects the pair of side walls 22A, 22B in the first region AR1 and faces the +Z direction with respect to the accommodation space S1. On the other hand, the support portion 25 connects the pair of side walls 22A, 22B in the second region AR2 and faces the +Z direction with respect to the guide space S2.

[0032] The above-mentioned spring portion 23 is disposed in the gap in the X direction between the support portions 24, 25. The support portion 24 supports a spring tip portion 231, and the support portion 25 supports a spring rear end portion 232. That is, the support portions 24, 25 both support the spring portion 23.

[0033] 2, support portion 24 is formed with a recess 241 that opens to the +Z side, and first engagement portions 283A, 283B of cover portion 28 are disposed in recess 241. Support portion 25 is formed with a pair of recesses 251 that open to the +Z side, and second engagement portions 284A, 284B of cover portion 28 are disposed in each recess 251.

[0034] The bottom wall portion 26 is disposed on the +X side of the storage space S1, and connects the +X side ends of the pair of side walls 22A, 22B. As shown in Fig. 4, the bottom wall portion 26 has an abutment surface 261 that faces the -X direction with respect to the storage space S1. As shown in Fig. 5, the bottom wall portion 26 also has a notch 262 that is cut out in the -Z direction to allow the string 30 to pass through in the X direction.

[0035] As shown in FIG. 2, the protrusions 27A and 27B are disposed at the −X direction end of the storage space S1, and have a shape that protrudes inward in the Y direction from the sidewalls 22A and 22B. Specifically, the protrusion 27A protrudes inward in the Y direction from the sidewall end 221 of the sidewall 22A, and the protrusion 27B protrudes inward in the Y direction from the sidewall end 221 of the sidewall 22B. As shown in FIG. 4, the protrusion 27A has an abutment surface 271 that faces the −X direction with respect to the storage space S1, and an inclined surface 272 that faces the −Z direction. The inclined surface 272 is inclined with respect to the Y direction and the Z direction so as to be located on the +Z side as it moves inward in the Y direction. Although not shown, the protrusion 27B also has the abutment surface 271 and the inclined surface 272 like the protrusion 27A.

[0036] The protrusions 27A and 27B form the socket A2 of the accommodation space S1. The socket A2 is an opening that opens the accommodation space S1 in the -X direction. The plug 10 is accommodated in the accommodation space S1 from the guide space S2 through the socket A2.

[0037] Lid portion 28 is disposed on the -Z side of spring portion 23 and attached to socket body 21. Specifically, lid portion 28 includes a plate portion 281 (see FIG. 6) covering the -Z side of spring portion 23, a pair of plug support portions 282A, 282B (see FIG. 3) protruding from plate portion 281, a pair of first engagement portions 283A, 283B (see FIG. 2) protruding from +X direction ends of the pair of plug support portions 282A, 282B, and a pair of second engagement portions 284A, 284B (see FIG. 2) protruding from -X direction ends of the pair of plug support portions 282A, 282B.

[0038] 3, the plug support portion 282A is inserted between the side wall portion 22A and the spring portion 23 in the +Z direction, and the plug support portion 282B is disposed between the side wall portion 22B and the spring portion 23 in the +Z direction. These plug support portions 282A, 282B have a concave arc surface 285 facing the +Z direction. The arc surface 285 is capable of abutting against the plug 10 in the Z direction so as to prevent excessive elastic deformation of the spring portion 23.

[0039] 2, the first engagement portions 283A, 283B have a claw shape that protrudes from the plug support portions 282A, 282B in the +Z direction and fits into the recessed portion 241 of the support portion 24. The second engagement portions 284A, 284B protrude from the plug support portions 282A, 282B in the -X direction and fits into the recessed portion 251 of the support portion 25. The first engagement portions 283A, 283B engage with the support portion 24, and the second engagement portions 284A, 284B engage with the support portion 25, whereby the lid portion 28 is attached to the socket body 21.

[0040] 1, the strap attachment portion 29 is disposed along the Y direction and is formed in a rod shape so as to connect the -X direction ends of the side wall portions 22A, 22B. A gap exists in the X direction between the strap attachment portion 29 and the support portion 25, and a strap is hung around the strap attachment portion 29.

[0041] In the socket 20 of the present embodiment described above, the abutment surfaces 271 of the pair of protrusions 27A, 27B and the abutment surface 261 of the bottom wall portion 26 can hold the plug 10 between them in the X direction. The pair of side walls 22A, 22B can hold the plug 10 between them in the Y direction. The side wall ends 221 (i.e., the stopper portions 220) of the pair of side walls 22A, 22B and the spring portion 23 can hold the plug 10 between them in the Z direction.

[0042] (Fastener 1 operation) The operation of the plug 10 and socket 20 when using the fastener 1 will now be described with further reference to FIGS.

[0043] When attaching a strap to an article, for example, a user places plug 10 in guide space S2 of socket 20 and applies pressure including directional components in the +X and -Z directions to plug 10. This causes plug 10 to slide from guide space S2 of socket 20 toward storage space S1 (see FIG. 7). At this time, plug 10 comes into contact with second extension portion 235 of spring portion 23, and spring portion 23 is deformed in the -Z direction by being pressed by plug 10. Also, plug 10 is guided by inclined surfaces 272 of protrusions 27A and 27B, passes through socket A2, and is inserted into storage space S1.

[0044] Next, the user releases the pressure applied to the plug 10. Then, the spring portion 23 tries to return to its original shape, and the pressing portion 233 of the spring portion 23 applies a pressure F in the +Z direction to the plug rear end portion 102. As a result, as shown in Fig. 8, the plug 10 is sandwiched in the Z direction between the pressing portion 233 of the spring portion 23 and each side wall end portion 221 (i.e., the stopper portion 220) of the pair of side wall portions 22A, 22B. As a result, as shown in FIG. 9, the insertion of the plug 10 into the socket 20 is completed, and the strap is attached to the article.

[0045] If the strap or string 30 is twisted while the user is carrying the item, the plug 10 rotates about the central axis along the X direction relative to the socket 20 while sliding against the spring portion 23 and the stopper portion 220. This prevents the above-mentioned twisting from occurring.

[0046] When removing the strap from an article, the user applies pressure including directional components in the -X and -Z directions to the plug 10 through the operation opening A1 of the socket 20. At this time, the spring portion 23 is deformed in the -Z direction by the pressure from the plug 10, so the plug 10 moves in the -X direction while moving slightly in the -Z direction. As a result, the plug 10 is guided by the inclined surfaces 272 of the protruding portions 27A and 27B and inserted into the insertion port A2, and moves from the accommodation space S1 to the guide space S2. The user then removes the plug 10 that has moved to the guide space S2 from the socket 20. This completes the removal of the plug 10 from the socket 20, and the strap is removed from the article.

[0047] (Effects of this embodiment) As described above, the fastener 1 of this embodiment includes the plug 10 having a rotating body shape and the socket 20 into which the plug 10 is inserted along the axial direction, the socket 20 includes the strap attachment portion 29 to which a strap is attached, and the socket body portion 21 forming the accommodation space S1 in which the plug 10 is placed, the socket body portion 21 includes the spring portion 23 having a pair of ends 231, 232 aligned in the X direction and facing the accommodation space S1 in the +Z direction, a pair of support portions 24, 25 supporting the pair of ends 231, 232 of the spring portion 23, and a stopper portion 220 facing the accommodation space S1 in the -Z direction. The spring portion 23 has a pressing portion 233 between the pair of ends 231, 232 that presses the plug 10 placed in the accommodation space S1 against the stopper portion 220.

[0048] According to this configuration, plug 10 is rotatable with respect to socket 20, and is sandwiched between pressing portion 233 of spring portion 23 and stopper portion 220. In addition, since pressing portion 233 of spring portion 23 is located between a pair of ends 231, 232 supported by support portions 24, 25, it is easy to ensure the strength of spring portion 23 for pressing plug 10. 7, the force applied from the strap or the like may move the string 30 as shown by the arrow R1, and a force may be applied from the string 30 to the plug 10 as shown by the arrow R2. In such a case, a force acts on the plug 10 to tilt it and remove it from the socket 20, but the pressing portion 233 of the spring portion 23 presses the plug 10 against the stopper portion 220, thereby preventing the plug 10 from falling off. Therefore, according to the fastener 1 of the present embodiment, it is possible to ensure sufficient attachment strength while suppressing twisting between the article and the strap. Furthermore, when magnets or metal springs are used as in the past, separation is required at the time of disposal, which poses problems in terms of environmental considerations and costs. On the other hand, the fastener 1 of this embodiment can be molded from resin, so it is possible to solve problems such as environmental considerations and costs.

[0049] In this embodiment, the spring portion 23 and the pair of support portions 24, 25 are integrally formed. With this configuration, it is easier to ensure the strength of spring portion 23 for pressing plug 10. Furthermore, when manufacturing fastener 1, a process of later attaching spring portion 23 is not required, so the manufacturing cost of fastener 1 can be reduced.

[0050] In this embodiment, the socket 20 further includes a pair of side wall portions 22A, 22B arranged on either side of the storage space S1 in the Y direction, and the pair of side wall portions 22A, 22B have side wall end portions 221 curved inward in the Y direction to form a stopper portion 220. With this configuration, the stopper portion 220 can abut against the plug 10 appropriately.

[0051] In this embodiment, the socket body 21 further includes a pair of protrusions 27A, 27B protruding inward in the Y width direction from a pair of side wall portions 22A, 22B on the -X side of the accommodating space S1, and the plug rear end portion 102 is capable of abutting against the pair of protrusions 27A, 27B in the X direction. According to this configuration, the plug 10 can be suitably prevented from falling off from the accommodation space S1 of the socket 20 in the -X direction.

[0052] In this embodiment, the pressing portion 233 of the spring portion 23 applies a pressing force to the plug rear end portion 102 . For example, as described above, the string 30 may move as shown by the arrow R1 in Fig. 7, and as a result, a force may be applied from the string 30 to the plug 10 as shown by the arrow R2. In such a case, a force acts on the plug 10 such that the plug rear end 102 moves downward in the -Z direction, but the pressing portion 233 of the spring portion 23 supports the plug rear end 102, so that the inclination of the plug 10 can be suppressed. As a result, the plug 10 is maintained in a state in which it can abut against the protrusions 27A and 27B, and the plug 10 can be more suitably suppressed from falling off in the -X direction.

[0053] In this embodiment, the side wall end portions 221 of the pair of side wall portions 22A, 22B form an operation opening A1 therebetween that exposes the plug 10 in the +Z direction from the accommodation space S1. In this operation opening A1, a Y direction dimension D1 of a first opening region A11 that exposes the plug rear end portion 102 is wider than a Y direction dimension D2 of a second opening region A12 that exposes the plug front end portion 101. In this configuration, when the user removes the plug 10 from the socket 20, the user can easily operate the plug 10 through the operation opening A1.

[0054] In this embodiment, the plug 10 includes a cylindrical plug body 11 and a flange portion 12 protruding from the plug body 11 . In such a configuration, when a user operates the plug 10 in the accommodation space S1, the flange portion 12 functions as a slip prevention device for the user's fingers, etc. This can improve the operability of the plug 10.

[0055] In this embodiment, the socket 20 further includes a lid portion 28 attached to the socket main body 21, and the lid portion 28 further includes a plate portion 281 and a pair of plug support portions 282A, 282B protruding from the plate portion 281 in the +Z direction so as to pass through the gap between the pair of side wall portions 22A, 22B and the spring portion 23. In this configuration, when pressure is applied to the plug 10 in the -Z direction, the plug support portions 282A and 282B can abut against the plug 10 in the Z direction, so that excessive elastic deformation of the spring portion 23 can be prevented.

[0056] [Second embodiment] The fastener 1 of the second embodiment includes a plug 10 similar to that of the first embodiment, and a socket 20A having a different configuration from that of the first embodiment. The socket 20A of the second embodiment will be described below with reference to Fig. 10. Note that the same components as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and descriptions thereof will be omitted or simplified.

[0057] The socket 20A of the second embodiment comprises a socket main body 21A that forms an accommodating space S1, etc., and a strap attachment portion 29 extending from the socket main body 21A. The socket main body 21A has a main body base 210 and a lid portion 28A attached to the main body base 210.

[0058] The main body base 210 has all the components of the socket main body 21 described in the first embodiment except for the spring portion 23. Specifically, the main body base 210 includes a pair of side walls 22A, 22B facing each other in the Y direction, a bottom wall 26 connecting the -X side ends of the pair of side walls 22A, 22B, and a pair of protrusions 27A, 27B protruding inward in the Y direction from the pair of side walls 22A, 22B. The main body base 210 also includes a wall 25A that connects the pair of side walls 22A, 22B in the second region AR2 and faces the +Z direction with respect to the guide space S2.

[0059] The lid portion 28A has a plate portion 281, a spring portion 23A provided on the plate portion 281, and an engagement portion (not shown). The lid portion 28A is integrally molded from resin. Like the spring portion 23 of the first embodiment, the spring portion 23A has a pair of ends 231, 232 and faces the accommodation space S1 in the +Z direction. Both ends 231, 232 of the spring portion 23A are supported by a plate portion 281. That is, both ends 281A, 281B of the plate portion 281 in the X direction function as a pair of support portions of the present invention. The spring portion 23A also has a pressing portion 233 that presses the plug 10 accommodated in the socket 20A. The fastener of the second embodiment as described above can achieve the same effects as the first embodiment.

[0060] [Variations] The specific configuration of the fastener 1 in each of the above embodiments is not limited to the above description. Below, a modified example of the first embodiment will be described, but the second embodiment may also be modified in the same way.

[0061] In the first embodiment, the plug 10 is not limited to a cylindrical shape, and may have any rotating body shape so as to be rotatable relative to the socket 20.

[0062] In the first embodiment, the socket 20 is not limited to having the lid portion 28, and the lid portion 28 may be omitted. Furthermore, the pair of plug support portions 282A, 282B of the lid portion 28 may be omitted.

[0063] In the first embodiment, the operation opening A1 of the socket 20 has different Y-direction dimensions D1, D2, but the present invention is not limited to this. For example, the Y-direction dimension of the operation opening A1 may be constant along the X-direction. Also, in each of the above embodiments, the operation opening A1 of the socket 20 may be omitted, and the socket 20 may have a substantially cylindrical shape.

[0064] In the first embodiment, the pressing portion 233 of the spring portion 23 applies pressure to the plug rear end portion 102, but the present invention is not limited to this. That is, the pressing portion 233 of the spring portion 23 may apply pressure to any portion of the plug 10 (for example, a portion on the -X side of the center of the plug 10 in the X direction).

[0065] In the above first embodiment, socket 20 is not limited to having a pair of protrusions 27A, 27B that form insertion port A2, and the pair of protrusions 27A, 27B may be omitted. For example, while an article is suspended from a strap, it is assumed that the -X direction corresponds to the upper side in the vertical direction, and therefore plug 10 is held in socket 20 without any problem even if movement of plug 10 from accommodation space S1 in the -X direction is not restricted.

[0066] In the first embodiment, the side wall end portions 221 of the pair of side wall portions 22A, 22B may have other shapes as long as they are shapes that configure the stopper portion 220. Also, in each of the above embodiments, the stopper portion 220 may be a portion of the cylindrical socket 20 that defines the accommodation space S1, rather than being a part of the pair of side wall portions 22A, 22B.

[0067] In the first embodiment, the socket body 21 is integrally molded, but the present invention is not limited to this. For example, the spring portion 23 may be formed as a member separate from the socket body 21 and attached to the pair of supports 24, 25.

[0068] In the first embodiment, the article fastening portion is the string 30, but the present invention is not limited to this, and an article fastening portion of any configuration may be attached to the plug 10. [Explanation of symbols]

[0069] 1... fastener, 10... plug, 101... plug tip portion, 102... plug rear end portion, 11... plug body portion, 12... flange portion, 13... tubular member, 14... lid member, 20, 20A... socket, 21, 21A... socket body portion, 210... body base portion, 22A, 22B... side wall portion, 220... stopper portion, 221... side wall end portion, 222... abutment surface, 23... spring portion, 231... spring tip portion, 232... spring rear end portion, 233... pressing portion, 234... first extension portion, 235... second extension portion, 23A... spring portion, 24... support portion, 241... recessed portion, 25... support portion, 251... recessed portion, 25A... wall portion, 26... bottom wall portion, 261... abutment surface , 262...notch, 271...abutment surface, 272...inclined surface, 27A...convex portion, 27B...convex portion, 28...cover portion, 281...plate portion, 281A...end portion, 281B...end portion, 282A...plug support portion, 282B...plug support portion, 283A...first engagement portion, 283B...first engagement portion, 284A...second engagement portion, 284B...second engagement portion, 285...arc surface, 28A...cover portion, 29...strap attachment portion, 30...string body, 31...end portion, 32...end portion, A1...operation opening, A11...first opening area, A12...second opening area, A2...insertion port, AR1...first area, AR2...second area, S1...storage space, S2...guiding space.

Claims

1. The present invention comprises a plug (10) having a rotational body shape, and a socket (20) into which the plug (10) is inserted along an axial direction, The socket (20) is A strap attachment portion (29) to which a strap is attached; a socket body (21) that forms an accommodation space (S1) in which the plug (10) is placed; The socket body (21) is a spring portion (23) having a pair of ends (231, 232) arranged in the axial direction and facing one side in a thickness direction perpendicular to the axial direction with respect to the storage space (S1); a pair of support portions (24, 25) for supporting the pair of ends (231, 232) of the spring portion (23); a stopper portion (220) facing the other side of the thickness direction with respect to the storage space (S1); The spring portion (23) has a pressing portion (233) between the pair of ends (231, 232) that presses the plug (10) placed in the accommodating space (S1) against the stopper portion (220).

2. 2. The fastener according to claim 1, wherein the spring portion (23) and the pair of support portions (24, 25) are integrally formed.

3. The socket body (21) further includes a pair of side wall portions (22A, 22B) arranged with the accommodation space (S1) therebetween in a width direction perpendicular to each of the axial direction and the thickness direction, 2. The fastener according to claim 1, wherein the pair of side wall portions (22A, 22B) have side wall end portions (221) curved inward in the width direction so as to form the stopper portion (220).

4. The socket body (21) further includes a pair of protrusions (27A, 27B) protruding inward in the width direction from the pair of side wall portions (22A, 22B) on one side in the axial direction with respect to the accommodation space (S1), The fastener according to claim 3 , wherein a rear end portion (102) in an insertion direction of the plug (10) disposed in the accommodating space (S1) is capable of abutting against the pair of protrusions (27A, 27B) in the axial direction.

5. The fastener according to claim 4, wherein the pressing portion (233) applies a pressing force against the rear end (102) of the plug (10).

6. the side wall end portions (221) of the pair of side wall portions (22A, 22B) form an operation opening (A1) therebetween for exposing the plug (10) from the accommodation space (S1) to the one side in the thickness direction, The fastener according to claim 3, wherein the width dimension (D1) of a first opening region (A11) of the operation opening (A1) exposing a rear end (102) of the plug (10) in the insertion direction is wider than the width dimension (D2) of a second opening region (A12) exposing a front end (101) of the plug (10) in the insertion direction.

7. The plug (10) is A cylindrical plug body (11); The fastener according to claim 3, further comprising a flange portion (12) protruding radially outward from the plug body portion (11).

8. The socket (20) further includes a lid portion (28) attached to the socket body portion (21), The lid portion (28) is A plate portion (281); 4. The fastener according to claim 3, further comprising a pair of plug support portions (282A, 382B) protruding from the plate portion (281) to the one side in the thickness direction so as to pass through a gap between the pair of side wall portions (22A, 22B) and the spring portion (23).

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