JP2008029470A - Connecting member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To release an engagement even if a tensile force in a direction other than an axial direction is applied to a male member and a female member connecting a neck strap. <P>SOLUTION: The male member 10 is provided with a semispherical projection 15 on a tongue-shaped projecting piece 13 formed into a U shape. On the other hand, the female member 11 is provided with a locking hole 17 in which the projection 15 of the projecting piece 13 is fitted, in a fitting hole 16 for fitting the projecting piece 13 of the male member 1. When a force in the direction other than the axial direction is applied to the both members 10 and 11 connected by fitting the projecting piece 13 in the fitting hole 16, the male member 10 is rotated and detached. Because the tip of the projecting piece 13 of the male member 10 has the U shape, it is prevented from abutting on the inner wall of the fitting hole 16. When the projecting piece 13 starts to rotate, the semispherical projection 15 of the projecting piece 13 is detached from the locking hole of the fitting hole 16 so as to release the engagement, even if the tensile force in the direction other than the axial direction is applied thereto. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a connecting member that connects straps.

  As a connection member of a strap, there exists a thing shown to (patent document 1), for example. As shown in FIG. 4 (a), the connecting member is composed of a connecting tool 1 and a connected tool 2, and the connecting tool 1 has two bent ones as shown in FIG. 4 (a). An arm-shaped fitting member (hereinafter referred to as an arm) 3 is provided on the left and right. Moreover, the to-be-connected tool 2 becomes a structure which provided the notch 4 on either side like FIG. 4, The arm 3 of the said connecting tool 1 is engaged with the notch 4. As shown in FIG.

  That is, as shown in FIG. 4B, when the arm 3 of the coupling tool 1 is fitted from the insertion hole 5 of the coupled tool 2, the curvature of the arm 3 is fitted into the notch 4 of the coupled tool 2. At this time, when the arm 3 is bent and a tensile force is applied as indicated by an arrow A in FIG. 4B, the abutting portion 6 of the notch 4 as indicated by a one-dot chain line in FIG. The arm 3 pushed to the inside is bent inward, and the engagement between both is released and comes off. In this way, the connector 1 is detached when a load of a certain level or more is applied. Therefore, if it is adopted as a neck strap for hanging a mobile phone or the like from the neck, the neck can be removed even if the mobile phone is hooked on a machine at a factory or the like. It is not tightened and accidents can be prevented.

Utility Model Registration No. 3086720

  By the way, in the above, when pulled in the axial direction as indicated by the arrow A in FIG. 4B, the left and right arms 3 can be bent together to release the engagement. However, for example, when pulled by a force deviated from the axis like B or C, even if one arm 3 is bent, the other arm 3 is not bent. Therefore, the arm 3 which does not bend is caught and cannot be released. In this way, if the engagement can be released only by a tensile force in a certain direction, it is dangerous because the direction of the tensile force actually applied to the connecting member is not always limited to the axial direction.

  Accordingly, an object of the present invention is to enable the engagement to be released even when a tensile force other than the axial direction is applied to the connecting member.

  In order to solve the above-mentioned problems, the present invention comprises a male member and a female member, each having a locking portion for attaching a strap to one surface of a rectangular parallelepiped, and the male member is the other surface facing the locking portion. And a hemispherical projection provided on each side of the projecting piece in the middle in the width direction, while the female member has a locking portion. A fitting hole for inserting the protruding piece of the male member is provided on the other surface opposite to and a locking hole into which the protrusion of the protruding piece inserted into the fitting hole is fitted is adopted.

  By adopting such a configuration, if the protruding piece of the male member is inserted into the fitting hole of the female member and the hemispherical protrusion provided on the protruding piece is fitted into the engaging hole of the fitting hole, the both are engaged. Can be combined. At this time, since the projection is hemispherical, the fitting of the projection into the engagement hole can be smoothly performed. On the other hand, when the engaged male member and female member are pulled with a predetermined force in the axial direction, the protrusion fitted in the locking hole is released, so that the engagement can be released. At this time, since the protrusion is hemispherical, it can be smoothly removed from the fitting hole. In addition, when a force other than the axial direction is applied to the engaged male member and female member, for example, in order to bend the engagement between the male member and the female member, the male member turns and disengages. At this time, since the protrusion of the male member has a U-shaped tip, it can be swung without hitting the inner wall of the fitting hole. In this way, when the projecting piece starts to turn, the hemispherical projection of the projecting piece is released from the engaging hole of the fitting hole, and the engagement is released.

  At this time, the structure which provided the step part in the both sides of the protrusion of a male member is employable.

  By adopting such a configuration, the rise of the stepped portions at both ends of the projecting piece is vertical. Therefore, when fitting into the fitting hole of the female member, the inner wall of the fitting hole is brought into contact with the inner wall so as not to be loose and the strength can be maintained.

  Since the present invention is configured as described above, it can be disengaged even when a tensile force other than the axial direction is applied. For example, it can be used for a neck strap that suspends a mobile phone or an ID card from the neck. For example, the neck can be prevented from being tightened.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  As shown in FIG. 1 (a), the connecting member of this embodiment is composed of a male member 10 and a female member 11 made of resin, each having a locking portion 12 for attaching a strap to one of the rectangular parallelepipeds.

  As shown in FIGS. 1 (a) and 1 (b), the locking portion 12 is formed by cutting out one end of a rectangular parallelepiped to form a shaft 12 '. For example, although not shown in the shaft 12', a strap is shown. Install. That is, it is attached by folding the shaft 12 'through a strap and attaching it to the shaft 12'.

  The male member 10 has a tongue-shaped protruding piece 13 formed in a U-shape on the other surface facing the surface on which the locking portion 12 is formed, and stepped portions 14 are formed on both sides of the protruding piece 13. Is formed. Further, hemispherical protrusions 15 are provided on both surfaces of the protruding piece 13, respectively. The protrusion 15 is provided in the middle of the protruding piece 13, that is, in the middle of the width direction and the length direction.

  On the other hand, the female member 11 has a fitting hole 16 on the other surface facing the locking portion 12. The fitting hole 16 is for fitting the protruding piece 13 of the male member 10 having a rectangular cross-sectional shape. When the protruding piece 13 is fitted as shown in FIG. No. 14 fits in and prevents backlash. The fitting hole 16 is provided with a locking hole 17 into which the protrusion 15 of the protruding piece 13 is fitted. The locking hole 17 is a through hole, and is provided on both surfaces (longitudinal side) of the rectangular parallelepiped of the female member 11 as shown in FIGS.

  This configuration is configured as described above, and the male member 10 and the female member 11 of this connecting member are attached to a strap S as shown in FIG. 2, for example, and a mobile phone 18 or an ID card (not shown). Used for a neck strap that hangs from the neck. Thus, when connecting the male member 10 and the female member 11 used for a neck strap, the protrusion 13 of the male member 10 is inserted into the fitting hole 16 of the female member 11. Then, the projection 15 of the inserted projecting piece 13 advances while expanding the hole and fits into the locking hole 17. At this time, the stepped portion 14 of the inserted projecting piece 13 is fitted into the fitting hole 16, and the rattling is suppressed to fit in the pit. Since it has been connected in this state, it can be used as a neck strap as shown in FIG.

  On the other hand, when the male member 10 and the female member 11 connected in this way are pulled in the axial direction, when the protrusion 15 engaged with the locking hole 17 reaches a predetermined pulling force, it resists the pulling force. I can't do it and get out. At this time, since the projection 15 is hemispherical, it can be removed without being caught by the edge of the locking hole 17 or the like.

  In addition, for example, when a predetermined lateral pulling force is applied such that the engagement between the male member 10 and the female member 11 is bent, as shown in FIGS. The end of the male member 10 and the opening end of the fitting hole 16 serve as fulcrums to start turning. At that time, the protruding piece 13 of the male member 10 has a U-shaped tip so that it does not hit the inner wall of the fitting hole 16 and therefore does not hinder turning. Further, when the projecting piece 13 starts to turn in this way, when a predetermined force is reached, the hemispherical projection 15 of the projecting piece 13 is detached from the locking hole 17 of the fitting hole 16 as shown in FIG. The engagement is released.

  In this way, the engagement can be released with respect to a predetermined tensile force in the axial direction and the lateral direction. Therefore, for example, if it is applied to a neck strap, it is possible to prevent the neck from being tightened safely even when a mobile phone is hooked on a machine in a factory or the like.

  Note that the “predetermined force” in the embodiment is a force that does not squeeze the neck, and is determined by experimentation or experience. The “predetermined force” for disengaging the connecting member is selected in accordance with the selection of the material used and the design of the shape such as the size of the hemispherical projection.

(A), (b) perspective view of the embodiment Action explanatory diagram of the embodiment (A), (b), (c) Action explanatory drawing of embodiment (A), (b) Operation explanatory diagram of the conventional example

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Male member 11 Female member 12 Locking part 13 Projection piece 14 Step part 15 Protrusion 16 Fitting hole 17 Locking hole

Claims (2)

Consists of a male member and a female member formed with a locking portion for attaching a strap to one surface of a rectangular parallelepiped,
The male member has a tongue-like protruding piece formed in a U shape on the other surface facing the locking portion, and hemispherical protrusions are provided in the middle in the width direction on both surfaces of the protruding piece, respectively. And
On the other hand, the female member is provided with a fitting hole for inserting the protruding piece of the male member on the other surface facing the locking portion, and a locking hole into which the protrusion of the protruding piece inserted into the fitting hole is fitted. A connecting member provided. The connecting member according to claim 1, wherein stepped portions are provided on both sides of the protruding piece of the male member.

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