Connectors

Abstract

The connector (1) includes a connector body (10) and a mounting body (30). The connector body (10) includes a pair of connecting hole portions (15, 15), and the mounting body (30) includes a connecting shaft portion (35). A connecting hole (19) is formed in the connecting hole portions (15, 15), and a bulging portion (37) is formed in the connecting shaft portion (35) and is disposed in the connecting hole (19). Flat contact surfaces (21, 41) are formed in the connecting hole portions (15, 15) and the bulging portion (37) so as to contact each other in the pulling direction of the connector body (10) and the mounting body (30).

Description

Technical Field

[0001] The present invention relates to a connecting member such as a rotating hook used as a belt or a rope in a bag. Background Art

[0002] Conventionally, there is known a synthetic resin rotating hook (lobster clasp) comprising a main body having a hook portion that engages with an engaging ring such as a D-ring, and an attachment body that is attached to a belt or a rope (see Patent Document 1).

[0003] The mounting body has a neck portion extending downward from a base portion thereof and a substantially spherical bulge portion continuous with the neck portion.

[0004] The main body comprises a base from which the hook portion extends downwardly, and a pair of locking bodies extending upward from the base. Each of the pair of locking bodies has a circular through-hole extending laterally therethrough. The main body is connected to the mounting body by placing the bulged portion of the mounting body in the through-hole and the neck portion of the mounting body between the pair of locking bodies. The main body is movable relative to the mounting body in two directions: rotational rotation about the axis of the neck portion and swinging along the gap formed between the pair of locking bodies.

[0005] Prior art literature

[0006] Patent Literature

[0007] Patent Document 1: Japanese Patent Publication No. 4-35161 Summary of the Invention

[0008] Furthermore, in the aforementioned two-part structure of a main body and mounting body, where the main body is movable in two directions, a flat surface is formed on the upper portion of the bulged portion of the mounting body, extending in a direction intersecting the axial direction of the neck, while an arcuate surface defining a through-hole is formed on the upper portion of the locking body of the main body. Therefore, when a vertical pulling force is applied to the swivel hook, only a portion of the edge of the flat surface of the mounting body contacts the arcuate surface of the main body, making it difficult to improve the swivel hook's tensile strength.

[0009] An object of the present invention is to provide a connecting member such as a swivel hook that can improve tensile strength.

[0010] The connecting piece of the present invention includes a connecting piece main body and an installation body, one of the connecting piece main body and the installation body has a pair of connecting hole portions, and the other of the connecting piece main body and the installation body has a connecting shaft portion arranged between the pair of connecting hole portions and connected to the pair of connecting hole portions, the connecting piece main body is configured to be movable relative to the installation body in a rotation direction around the axis of the connecting shaft portion and a swinging direction along the gap between the pair of connecting hole portions, connecting holes are formed in the pair of connecting hole portions, a bulging portion arranged in the connecting hole is formed on the connecting shaft portion, and abutting flat surfaces are formed on the connecting hole portion and the bulging portion, which are in surface contact with each other in the pulling direction of the connecting piece main body and the installation body.

[0011] According to the connector of the present invention, when a pulling force is applied to the connector body and the mounting body during use, the flat contact surface of the connecting hole and the flat contact surface of the bulging portion are in surface contact with each other, thereby being able to withstand the large pulling force.

[0012] In the coupling tool of the present invention, the contact flat surfaces may be in continuous surface contact with each other in a direction perpendicular to the pulling direction and along a gap between the pair of coupling holes.

[0013] In the coupling of the present invention, the coupling body may include the pair of coupling hole portions, and the attachment body may include the coupling shaft portion.

[0014] In the connecting piece of the present invention, it may also be that the above-mentioned connecting shaft portion has a shaft portion, the end of which is continuous with the above-mentioned bulge portion and the shaft portion is arranged in the gap between the above-mentioned pair of connecting hole portions, and the dimension from the circumferential surface of the above-mentioned shaft portion to the edge of at least a part of the abutting flat surface of the above-mentioned bulge portion is greater than the dimension obtained by subtracting the diameter dimension of the above-mentioned shaft portion from the dimension of the gap between the above-mentioned pair of connecting hole portions.

[0015] In the connector of the present invention, the above-mentioned abutting flat surface (the abutting flat surface of the connector body) may be configured to protrude toward the abutting flat surface (the abutting flat surface of the mounting body) in a manner capable of surface contact with the above-mentioned abutting flat surface (the abutting flat surface of the mounting body).

[0016] In the coupling tool of the present invention, the pair of coupling holes may be formed with inclined surfaces that are continuous with the contact flat surfaces of the coupling holes and the outer side surfaces of the coupling holes.

[0017] In the connecting piece of the present invention, the connecting piece main body may have a hook portion provided below the pair of connecting hole portions, the mounting body may have a mounting ring portion provided above the connecting shaft portion, and the abutting flat surfaces of the pair of connecting hole portions and the abutting flat surface of the bulging portion may be formed in a plane along a direction perpendicular to the up and down directions.

[0018] According to the present invention, a connecting tool such as a swivel hook capable of improving tensile strength can be provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view showing the coupling according to this embodiment.

[0020] Figure 2 It is a side view showing the coupling tool of the above embodiment.

[0021] Figure 3 This is an explanatory diagram showing the main part of the coupling according to the above embodiment from the side.

[0022] Figure 4 This is an explanatory diagram showing the main part of the coupling according to the above embodiment from above.

[0023] Figure 5 This is an explanatory diagram showing the main part of the coupling according to the above embodiment from above. DETAILED DESCRIPTION

[0024] [Structure of this embodiment]

[0025] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

[0026] exist Figure 1 and Figure 5 The connector 1 of this embodiment is used as a swivel hook for attaching a shoulder strap to a shoulder bag or the like, and includes a connector body 10 and an attachment body 30 made of synthetic resin.

[0027] In the following description, the X-axis direction is set as the up-down direction of the connecting member 1, the Y-axis direction perpendicular to the X-axis direction is set as the left-right direction of the connecting member 1, and the Z-axis direction perpendicular to the X- and Y-axis directions is set as the front-back direction (thickness direction) of the connecting member 1.

[0028] The connector body 10 includes a hook portion 11 for hooking onto a locking ring such as a D-ring mounted on a bag, and a pair of connection holes 15 , 15 provided above the hook portion 11 . The connection holes 15 , 15 are connected to a connection shaft portion 35 of the mounting body 30 , which will be described later.

[0029] The hook portion 11 includes a hook piece 13 and a retaining piece 14 extending downward from its base 12. The retaining piece 14 is capable of swinging in the Y-axis direction, with its tip contacting and separating with the tip of the hook piece 13 as a result of this swinging. The aforementioned engaging ring is passed between the tips of the hook piece 13 and the retaining piece 14, whereupon the engaging ring is hooked onto the hook portion 11.

[0030] The connecting hole portions 15, 15 are arranged opposite to each other with a gap 16 in the Z-axis direction, and are formed in substantially the same manner. The connecting hole portion 15 has a pair of left and right side pieces 17, 17 extending upward from the base 12, and a contact piece portion 18 continuous with the side pieces 17, 17, and a connecting hole 19 having a circular opening 191 is formed by the side pieces 17, 17 and the contact piece portion 18. The connecting hole 19 passes through in the Z-axis direction. In addition, the circular opening 191 is not limited to a perfect circle, but may also be an elliptical shape. In this embodiment, the contact piece portion 18 is thickened as described later, so it is not a perfect circular shape. In addition, the opening of the connecting hole 19 may not be a circular opening 191, but may be various opening shapes such as a polygonal shape.

[0031] like Figure 3 As shown, the contact piece 18 protrudes downward (toward the contact flat surface 41 and the hook portion 11). That is, in this embodiment, the contact piece 18 is thicker than the side pieces 17, 17. Therefore, the contact flat surface 21 is configured to protrude toward the hook portion 11 so that it can come into surface contact with the contact flat surface 41 (described later). The surface of the contact piece 18 that forms the connection hole 19 is formed by the rectangular contact flat surface 21 extending perpendicularly to the X-axis, and the inclined surface 22 that is continuous with the outer edge of the contact flat surface 21 in the Z-axis direction and the outer side surface 151 of the connection hole 15. The inclined surface 22 slopes diagonally upward from the contact flat surface 21 toward the outer side surface 151.

[0032] The mounting body 30 includes a mounting ring portion 31 to which a belt or rope is attached, and a connecting shaft portion 35 extending downward from a base portion 32 of the mounting ring portion 31. The connecting shaft portion 35 includes a substantially elliptical cylindrical shaft portion 36 extending along the X-axis direction and continuing from the base portion 32, and a substantially spherical bulge portion 37 continuing from the lower end portion (end portion) of the shaft portion 36.

[0033] like Figure 3 As shown, the length of shaft portion 36 in the X-axis direction is greater than the thickness of contact piece 18 in the X-axis direction. Furthermore, the dimension D (diameter) of shaft portion 36 in the Z-axis direction, which passes through axis C, is smaller than the width W (gap dimension) of gap 16 in the Z-axis direction. Shaft portion 36 is disposed in gap 16 between connecting holes 15, 15. In this embodiment, width W refers to the dimension at the maximum width of gap 16.

[0034] The bulge 37 is arranged in the connecting hole 19 so as to have vertical and horizontal play (clearance) relative to the connecting hole portions 15, 15. A contact flat surface 41 is formed on the upper portion of the bulge 37 along a direction perpendicular to the X-axis direction. The contact flat surface 41 faces the contact flat surface 21 of the contact piece portion 18 in the X-axis direction.

[0035] The contact flat surface 41 is as follows Figure 4 As shown, it is arranged around the shaft portion 36 and has four corners 42 and is formed into a rounded quadrilateral shape. The dimension between the corners 42 located on the diagonal line of the contact flat surface 41 is larger than the width dimension W of the gap 16. Therefore, the corners 42 located on both sides of the shaft portion 36 in the Z-axis direction are arranged below the contact piece 18, as shown in FIG. Figure 3 As shown, the flat abutting surface 41 is opposed to the flat abutting surface 21 in the X-axis direction. Therefore, when a pulling force in the pulling direction (X-axis direction) is applied to the connector body 10 and the mounting body 30, the flat abutting surface 41 and the flat abutting surface 21 are in continuous surface contact in the Y-axis direction (a direction perpendicular to the X-axis direction and along the gap 16 between the pair of connecting hole portions 15, 15). This surface contact suppresses separation of the connector body 10 from the mounting body 30.

[0036] The dimension S (the dimension on the straight line passing through the axis C) from the peripheral surface of the shaft portion 36 to the edge of the corner portion 42 (protrusion) that contacts the flat surface 41 is larger than the dimension obtained by subtracting the dimension D of the shaft portion 36 from the width dimension W of the gap 16. Therefore, for example, Figure 5 As shown, even when the shaft portion 36 moves in the Z-axis direction and deviates toward one side of the connecting holes 15, 15, the corner portions 42 located on both sides of the shaft portion 36 in the Z-axis direction maintain a configuration in which they can be in surface contact with the contact flat surfaces 21 of the connecting holes 15, 15. Furthermore, even when the connector body 10 rotates relative to the mounting body 30 in the rotational direction R about the axis of the shaft portion 36, the corner portions 42 located on the diagonal lines of the contact flat surfaces 41 continue to face the contact flat surfaces 21 of the connecting holes 15, 15.

[0037] As described above, the connector 1 is composed of two components: the connector body 10 and the mounting body 30 . The connector body 10 is arranged to be movable relative to the mounting body 30 in both the rotational direction R and the swinging direction A along the gap 16 .

[0038] [Effects of this embodiment]

[0039] According to the connecting piece 1 of the present embodiment, when a pulling force is applied to the connecting piece main body 10 and the mounting body 30, the abutting flat surfaces 21 formed in the connecting hole portions 15, 15 and the abutting flat surface 41 formed in the bulging portion 37 are in continuous surface contact with each other in the Y-axis direction. Therefore, compared with the case where the abutting flat surface 21 is formed by an arc surface, for example, the contact area becomes larger, and it is difficult to generate a force in a direction intersecting with the X-axis direction. Therefore, the connection state of the connecting hole portions 15, 15 and the connecting shaft portion 35 can be properly maintained, and the tensile strength of the connecting piece 1 can be improved.

[0040] Connecting shaft portion 35 includes shaft portion 36, the end of which is continuous with bulged portion 37 and disposed in gap 16 between connecting holes 15, 15. A dimension S from the circumference of shaft portion 36 to the edge of at least a portion (corner 42) of flat contact surface 41 of bulged portion 37 is greater than the dimension obtained by subtracting dimension D of shaft portion 36 from width dimension W of gap 16. Therefore, even if shaft portion 36 moves in the Z-axis direction within gap 16, this portion remains in surface contact with flat contact surface 21, thereby preventing separation of connector body 10 from mounting body 30.

[0041] The contact flat surface 21 is arranged to protrude toward the contact flat surface 41 (the hook portion 11 side) so as to be in surface contact with the contact flat surface 41 .

[0042] The connecting holes 15, 15 are formed with inclined surfaces 22 that are continuous with the contact flat surfaces 21 and the outer side surfaces 151 of the connecting holes 15, 15. Thus, even if the contact flat surfaces 21 are formed in the connecting holes 15, 15, the inclined surfaces 22 are continuous with the outer side surfaces 151 rather than the contact flat surfaces 21. Therefore, the opening in the outer side surface 151 of the connecting hole 19 can be formed into a circular opening 191. Furthermore, the opening can be configured to accommodate other opening shapes, thereby improving the appearance.

[0043] The flat contact surfaces 21 and 41 of the connecting holes 15 and 15 and the bulged portion 37 are formed within a plane extending perpendicularly to the X-axis direction. Therefore, even when the connector body 10 and the mounting body 30 are pulled in the X-axis direction and pressed against the flat contact surfaces 21 and 41, the connector 1 is less likely to generate forces intersecting the X-axis direction.

[0044] [Modification]

[0045] In the above embodiment, the connector body 10 has the connection holes 15 and the attachment body 30 has the connection shaft 35 . However, the connector body 10 may have the connection shaft 35 and the attachment body 30 may have the connection holes 15 .

[0046] In the above embodiment, the contact flat surface 41 is formed into a rounded quadrilateral with four corners 42, but the present invention is not limited thereto. The contact flat surface 41 may be any shape that can make surface contact with the contact flat surface 21 and may be a polygonal shape different from the above embodiment or circular.

[0047] In the above embodiment, the inclined surface 22 is formed between the contact flat surface 21 and the outer side surface 151 . However, the inclined surface 22 may be omitted and the contact flat surface 21 and the outer side surface 151 may be continuous.

[0048] In the above embodiment, the contact flat surfaces 21 and 41 are formed in a direction perpendicular to the X-axis direction, but the present invention is not limited thereto. The contact flat surfaces 21 and 41 only need to be flat surfaces that can make surface contact with each other, and therefore, they may be formed in a direction intersecting the X-axis direction.

[0049] In the above embodiment, the connector body 10 is arranged at the bottom and the mounting body 30 is arranged at the top. However, the connector 1 in actual use is not limited to the above arrangement and may be used upside down.

[0050] Description of Reference Numerals

[0051] 1: Connecting part, 10: Connecting part body, 11: Hook, 12, 32: Base, 13: Hook piece, 14: Anti-slip piece, 15: Connecting hole, 151: Outer surface, 16: Gap, 17: Side piece, 18: Contact piece, 19: Connecting hole, 191: Circular opening, 21, 41: Contact flat surface, 22: Inclined surface, 30: Mounting body, 31: Mounting ring, 35: Connecting shaft, 36: Shaft, 37: Bulging part, 42: Corner, A: Swinging direction, C: Axis, D, S: Dimensions, R: Rotation direction, W: Width dimension.

Claims

1. A connecting member, wherein: The connecting piece is composed of two parts: a connecting piece body and a mounting body. One of the connector body and the mounting body has a pair of connecting holes. The other of the connector body and the mounting body has a connecting shaft portion, the connecting shaft portion being arranged between the pair of connecting holes and connected to the pair of connecting holes. The connector body is configured to be rotatable relative to the mounting body in a rotational direction around the axis of the connecting shaft portion and to be swingable in a swinging direction along the gap between the pair of connecting hole portions. A connecting hole having a circular opening is formed in the pair of connecting hole portions, A spherical bulge is formed on the connecting shaft portion. The bulge is arranged in the connecting hole with vertical and horizontal play relative to the connecting hole portion and has a contact flat surface. The connecting hole portion has a contact flat surface that forms a portion of the connecting hole and is arranged to protrude toward the contact flat surface side of the bulging portion in the pulling direction of the connector body and the mounting body. The contact flat surface of the connection hole portion and the contact flat surface of the bulging portion are in continuous surface contact with each other in a direction perpendicular to the pulling direction and along a gap between the pair of connection holes.

2. The connecting member according to claim 1, wherein: The connecting member body has the pair of connecting hole portions, The attachment body includes the connecting shaft portion.

3. The connecting member according to claim 1, wherein: The connecting shaft portion includes a shaft portion, an end portion of which is continuous with the bulging portion and the shaft portion is arranged in the gap between the pair of connecting holes. A dimension from the peripheral surface of the shaft portion to an edge of at least a portion of the contact flat surface of the bulging portion is larger than a dimension obtained by subtracting a diameter dimension of the shaft portion from a dimension of a gap between the pair of connecting holes.

4. The connecting member according to claim 1, wherein: The pair of connection holes are formed with inclined surfaces that are continuous with the contact flat surfaces of the connection holes and the outer side surfaces of the connection holes.

5. The coupling according to claim 1, wherein: The connecting member body has a hook portion provided below the pair of connecting hole portions. The mounting body has a mounting ring portion provided above the connecting shaft portion. The pair of connection holes and the contact flat surfaces of the bulging portion are formed in a plane extending in a direction perpendicular to the up-down direction.

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