JP2007306706A - Clamp - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make a wire harness and the like collectable easily and in a short time, by making each clamp, which attaches the wire harness and the like to a body panel, removable by dealing with each resisting load only. <P>SOLUTION: This clamp includes a retainer 22, which can retain members to be retained like the wire harness, and an anchor 12, which is inserted into a mounting hole opened in a counterpart member like the body panel. The base portion of the anchor 12 is connected to the retainer 22 via a damper portion 24, which can bend by elasticity. The dimension between the joint end at the anchor side and that at the retainer side at this dumper portion 24 is set within the range of 1.5 to 5.0 mm. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a clamp for mounting on a body panel or the like of a vehicle while holding a member to be held such as a wire harness, and more particularly to a clamp suitable for recycling of a wire harness or the like.

  In this type of clamp, a holder for holding a wire harness or the like by an appropriate means and an anchor inserted into a mounting hole opened in a vehicle body panel or the like are integrally formed of resin. Therefore, by inserting the anchor into the mounting hole with the wire harness held in the holder, a part of the anchor is locked to the edge of the mounting hole, and the wire harness is mounted on the body panel or the like through the clamp. .

Thus, the clamp requires a predetermined holding force for properly attaching the wire harness or the like to the body panel or the like. However, on the other hand, it is necessary to remove the clamp from the body panel side in order to recover the wire harness and the like when recycling the vehicle. In the case of the wire harness, a plurality of locations in the length direction are attached to the body panel by individual clamps.
In addition, as a general technique of this kind of clamp, the technique regarding fasteners, such as a wire harness currently disclosed by patent document 1, for example is known.
JP-A-9-217864

  When a tensile load is applied to recover the wire harness during recycling, if there is no extra length in the wire harness between each clip that attaches this wire harness to the body panel, the first clamp and the other The peaks of the individual holding force (resistance load) against the tensile load with the clamp almost overlap. That is, the resistance load of the other clamp is added to the resistance load of the first clamp, and the clamp cannot be removed only by the operator pulling the wire harness by hand. Therefore, after unavoidably removing the sheet or the like where the wire harness is wired, the clamps are removed one by one using a predetermined tool, and much time is spent on the recovery work of the wire harness.

  The present invention is intended to solve such a problem, and its purpose is to allow each clamp for attaching a wire harness or the like to the body panel to be removed by dealing with only individual resistance loads. It is to make it possible to easily collect wire harnesses in a short time.

The present invention is for achieving the above object, and is configured as follows.
The invention described in claim 1 includes a holder that can hold a member to be held such as a wire harness, and an anchor that is inserted into a mounting hole that is opened in a counterpart member such as a body panel. The clamp is capable of mounting the held member to the counterpart member by inserting the anchor into the mounting hole of the counterpart member while holding the holding member, and the anchor base and the holder are elastically bent. It is connected through a damper part that can be removed. The dimension between the joint end on the anchor side and the joint end on the holder side in the damper portion is set in the range of 1.5 to 5.0 mm.

  When a plurality of clamps configured in this way are used to attach a plurality of lengths in the wire harness to the body panel, and the tensile load applied to the wire harness is applied to the first clamp The tensile load on the other clamps is absorbed by the bending of the individual damper portions. That is, the peak of the holding force (resistance load) of each clamp with respect to the tensile load is individually shifted, and each clamp can be sequentially removed by dealing only with each resistance load. Therefore, the operator can remove it from the body panel simply by pulling the wire harness by hand, and the wire harness can be easily recovered in a short time.

  The invention described in claim 2 is the clamp described in claim 1, wherein the damper portion is thick enough to be cut when a tensile load of a predetermined value or more acts between the anchor and the holder. Is set to

  According to this configuration, the clamp is substantially performed by performing a series of functions such that the damper portion of the clamp is bent and cut after absorbing the load based on the tensile load acting on the clamp when the wire harness is recovered. Removed from the body panel. For this reason, there is little variation in resistance load in each clip when the wire harness is pulled, and workability is further improved.

  The invention described in claim 3 is the clamp described in claim 1 or 2, wherein at least one of the base portion of the anchor and the holder is provided with a contact portion protruding toward the other. The abutting portion is set so as to maintain rigidity after the damper portion is elastically deformed against a compressive load acting between the base portion of the anchor and the holder.

  This ensures rigidity when the anchor of the clamp is inserted into the attachment hole of the counterpart member, and the workability is maintained.

Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings.
Embodiment 1
First, a first embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is an external perspective view showing a clamp for a wire harness. 2 is a front view of the clamp, and FIG. 3 is a plan view of the clamp. FIG. 4 is a longitudinal sectional view of the clamp. FIG. 5 is a cross-sectional view showing the usage state of the clamp. The structure of the clamp 10 shown in these drawings is roughly divided into an anchor 12 and a holder 22, which are integrally formed of a resin material. The anchor 12 is for attaching the clamp 10 to the body panel 32 (FIG. 5), and the holder 22 is for winding and holding the wire harness 30 (FIG. 5) with a vinyl tape or the like. The wire harness 30 corresponds to the “held member” of the present invention, and the body panel 32 corresponds to the “mating member” of the present invention.

  The anchor 12 has a support column 18 protruding from the center of one side surface (upper surface in the drawing) of the base 14, and a pair of locking pieces 20 positioned in a protruding state on both sides of the support column 18. That is, the base end portion 18a of the column 18 is integrated with the base 14 (FIGS. 4 and 5), and the tip end portion 18b is a free end. The upper portions of the locking pieces 20 are individually coupled to the side portions of the support column 18 near the distal end portion 18b, and spread outwardly from these coupling portions to the lower portion. A dish-shaped stabilizer 16 is formed on the outer periphery of the base 14.

  The shape of the outer side surfaces of both locking pieces 20 gradually bulges outward from the upper part to the intermediate part, and each intermediate part is a shoulder part 20a that projects outwardly. Between these shoulder portions 20a to the lower portion, there are a plurality of locking claw portions 20b formed in a multi-stage shape. Both the locking pieces 20 can be displaced from the state shown in the drawing in the direction approaching the support column 18 by elastically deforming the connecting portion with the support column 18 like a hinge.

  The holder 22 of the clamp 10 has a plate shape that is long in one direction, and the anchor 12 is located in the middle in the longitudinal direction. The base 14 of the anchor 12 and the holder 22 are coupled through a pair of damper portions 24 formed to be thin. These damper portions 24 can be bent by elastic deformation of the resin, and are set to such a thickness that they are broken when a tensile load of a predetermined value or more is applied between the anchor 12 and the holder 22. . Further, the dimension a (FIG. 4) between the base 14 of the anchor 12 and the holder 22 in both damper portions 24 is set within a range of 1.5 to 5.0 mm for the reason described later.

Next, the use of the clamp will be described.
First, as shown in FIG. 5, the wire harness 30 is placed on the holder 22 of the clamp 10, and these are wound together with a vinyl tape or the like. As a result, a part of the wire harness 30 is held by the holder 22 of the clamp 10, and the clamp 10 is attached to a part in the length direction of the wire harness 30. Normally, the clamps 10 are attached to a plurality of locations in the length direction of the wire harness 30, and the attachment holes 34 of the body panel 32 are also opened at a plurality of locations corresponding to the attachment positions of the clamps 10. As for the holder 22 of the clamp 10, for example, there is a type in which the outer periphery of the wire harness 30 is tightened and held by a belt and a buckle, and what type is adopted is arbitrary.

  After mounting the wire harness 30 on the holder 22 of the clamp 10 in this way, the anchor 12 of the clamp 10 is inserted into the mounting hole 34 of the body panel 32. Along with this, the individual shoulder portions 20 a pass through the mounting holes 34 while both the locking pieces 20 are bent in the direction approaching the column 18 due to the elastic deformation of the joint portion with the column 18. Then, one of the locking claws 20 b in both locking pieces 20 is locked to the edge of the mounting hole 34, and the anchor 12 is attached to the body panel 32. That is, the wire harness 30 is attached to the body panel 32 through the clamp 10. When the anchor 12 is attached to the body panel 32, the outer peripheral portion of the stabilizer 16 is pressed against the surface of the body panel 32. This stabilizes the state of attachment of the clamp 10 to the body panel 32, and also functions to seal the attachment hole 34 in some cases.

Next, an operation of removing the wire harness 30 from the body panel 32 and collecting it as part of the recycling will be described.
FIG. 6 is an explanatory view showing a state when the wire harness 30 mounted on the body panel 32 side is recovered using a plurality of clamps 10. When a plurality of (three) clamps 10 shown in FIG. 6 are described, they are distinguished from each other as clamps 10A, 10B, and 10C in order from the right side of the drawing. explain.

  When the wire harness 30 is pulled in the direction of the arrow X in FIG. 6 during recycling, the action lines L1, L2, and L3 of the tensile load with respect to the individual clamps 10A, 10B, and 10C have different inclination angles. For this reason, when the tensile load is acting in a direction to pull the holder 22 almost straight away from the anchor 12 with respect to the first clamp 10A, the individual holders 22 are laterally moved with respect to the other clamps 10B and 10C. Working to move to. Therefore, the tensile load applied to the clamps 10B and 10C is absorbed by the elastic deformation of the individual damper portions 24 as indicated by phantom lines in FIG. That is, by setting the dimension a of the damper portion 24 in each clamp 10 to a predetermined length, it becomes possible to shift the peak of the resistance load of each clamp 10 with respect to the tensile load so as not to overlap. As a result of repeating the test for obtaining this function, a preferable result was obtained if the dimension a was set in the range of 1.5 to 5.0 mm.

When the wire harness 30 is pulled in the direction of the arrow X, when the resistance load of the first clamp 10A reaches a peak and the damper portion 24 is broken, the resistance load in the next clamp 10B starts to rise and reaches a peak. . Then, after the damper portion 24 of the clamp 10B is broken, the resistance load of the third clamp 10C reaches a peak, and the damper portion 24 is broken. In this manner, the wire harness is in a state where the dampers 24 are broken and the anchors 12 are left on the body panel 32 side by simply pulling the clamps 10A, 10B, and 10C with a force exceeding the peak of each resistance load. 30 can be recovered.
As a means for removing the clamp 10 from the body panel 32, the locking piece 20 of the anchor 12 is attached to the mounting hole 34 of the body panel 32 in place of the breakage of the damper portion 24 connecting the anchor 12 and the holder 22. It is also possible to adopt a configuration that is extracted from the above.

Embodiment 2
Next, a second embodiment of the present invention will be described with reference to FIGS.
FIG. 7 is a front view of the clamp in the second embodiment, and FIG. 8 is a longitudinal sectional view of the clamp in the second embodiment. As shown in these drawings, a pair of abutting portions 40 projecting toward the base 14 of the anchor 12 is provided on the holder 22 between both damper portions 24 connecting the anchor 12 and the holder 22. . These abutting portions 40 have, for example, a rib shape having the same degree of rigidity as the holder 22, and a predetermined gap is provided between each tip portion and the lower surface of the base 14.

  After the wire harness 30 is attached to the holder 22, when the anchor 12 is inserted into the mounting hole 34 of the body panel 32 shown in FIGS. 5 and 6, both of them are caused by the compressive load acting between the base 14 of the anchor 12 and the holder 22. After the damper portion 24 is elastically deformed by a certain amount, the tip portions of both contact portions 40 come into contact with the base 14. Thereby, the rigidity of the clamp 10 when the anchor 12 is inserted into the mounting hole 34 is ensured, and the workability thereof is maintained. Further, as described above, when the clamp 10 receives a tensile load during recycling of the wire harness 30, there is a predetermined gap between the tip portions of the both contact portions 40 and the base 14. There is no hindrance to elastic deformation.

The arrangement of both contact portions 40 can be changed as in the following (1) to (3).
(1) The pair of contact portions 40 are protruded from the base 14 of the anchor 12 between the damper portions 24 toward the holder 22.
(2) The pair of abutting portions 40 are protruded from the base 14 or the holder 22 toward the other side outside the damper portions 24.
(3) One of the abutting portions 40 protrudes from the base 14 toward the holder 22 and the other protrudes from the holder 22 toward the base 14.

Embodiment 3
Next, a third embodiment of the present invention will be described with reference to FIGS.
FIG. 9 is a front view of the clamp in the third embodiment, and FIG. 10 is a longitudinal sectional view of the clamp in the third embodiment. In the third embodiment, in addition to the pair of abutting portions 40 projecting from the holder 22 toward the base 14 of the anchor 12 as in the second embodiment, a single contact projecting from the base 14 toward the holder 22 is provided. A contact portion 42 is provided. The abutment portion 42 is located between the pair of abutment portions 40, and the abutment portions 40 and one abutment portion 42 are set to have a length (protrusion amount) in which the distal ends do not overlap each other. Has been.

  In the clamp 10 according to the third embodiment, when the anchor 12 is inserted into the mounting hole 34 of the body panel 32, the tips of the contact portions 40 and 42 are deformed after the damper portion 24 is slightly deformed by receiving the compressive force. Overlap each other. After this state, the holder 22 is prevented from being largely displaced laterally by the elasticity of the damper portion 24 with respect to the anchor 12 due to the interference of the contact portions 40 and 42. When the damper portion 24 is greatly deformed by the compressive force, the distal end portions of the contact portions 40 and 42 come into contact with the base 14 or the holder 22 to ensure rigidity for inserting the anchor 12 into the mounting hole 34. When the clamp 10 receives a tensile load, the tips of the contact portions 40 and 42 do not overlap with each other, so that the elastic deformation of the damper portion 24 is not hindered.

  In the third embodiment, a pair of contact portions 40 may be provided on the base 14 of the anchor 12, and one contact portion 42 may be provided on the holder 22. Further, in place of these contact portions 40 and 42, it is possible to provide unevenness that engages only when the damper portion 24 is slightly deformed by receiving a compressive force on the base 14 side and the holder 22 side of the anchor 12. It is.

External perspective view showing clamp for wire harness Front view showing the clamp Plan view showing the clamp Vertical section showing clamp Cross-sectional view showing how the clamp is used Explanatory drawing showing the state when collecting the wire harness Front view of the clamp in the second embodiment Longitudinal sectional view of the clamp in the second embodiment Front view of clamp in embodiment 3 Vertical sectional view of the clamp in the third embodiment

Explanation of symbols

10 Clamp 12 Anchor 22 Holder 24 Damper 30 Wire harness (held member)
32 Body panel (mating member)
34 Mounting hole a Dimensions

Claims (3)

A holder that can hold a member to be held such as a wire harness and an anchor that is inserted into a mounting hole that is opened in a mating member such as a body panel. A clamp that can mount the held member on the mating member by inserting it into the mounting hole of the mating member,
The base of the anchor and the holder are connected through a damper part that can be bent by elasticity, and the dimension between the joint end on the anchor side and the joint end on the holder side in this damper part is within a range of 1.5 to 5.0 mm. The clamp that has been set. The clamp according to claim 1, wherein
The damper part is a clamp that is set to be thick enough to be cut when a tensile load of a predetermined value or more is applied between the anchor and the holder. The clamp according to claim 1 or 2,
At least one of the base of the anchor and the holder is provided with an abutting portion that protrudes toward the other, and this abutting portion is elastic to the compressive load acting between the base of the anchor and the holder. A clamp that is set to retain its rigidity after deformation.

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