JP2008306885A - Engagement structure of clip - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an engagement structure of a clip, which improves a baffle function of the clip and facilitates removal of the clip. <P>SOLUTION: A baffle pin 30 is projectively installed in a member 10 on a side of a clip base 21 in parallel to an insertion direction of the clip 20 to a rectangular engagement hole. A small hole 60 which is positioned on an outer side of the engagement hole and into which the baffle pin 30 is inserted, is formed on a panel. The clip is engaged with the engagement hole, and the baffle pin is inserted into the small hole. Thus, the clip is fixed to the panel. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a structure for engaging a clip with a panel provided on a protector or the like for a wire harness.

  Conventionally, a clip provided on a protector or the like for attaching a wire harness or the like to a vehicle body panel is basically a clip base fixed to the wire harness side, a post projecting from the clip base, and a tip of the post A pair of umbrella-shaped elastic arms that extend diagonally from the base to the clip base and can bend and deform inward in the radial direction, and are provided on the outer surface of the free end of each elastic arm and engage the edge of the locking hole in the panel (See, for example, Patent Document 1 and Patent Document 2).

  When the clip having such a configuration is engaged with the locking hole of the vehicle body panel, the tip of the clip is simply inserted into the locking hole of the vehicle body panel. Then, as the elastic arm interferes with the hole edge of the locking hole according to the insertion, the elastic arm squeezes inward in the radial direction against the repulsive force due to the elasticity of the resin, and reaches the position of the locking step portion while constricting. When the clip is inserted, the elastic arm is elastically restored, and the locking step portion engages with the hole edge of the locking hole from the back side of the panel, whereby the clip is locked to the vehicle body panel.

  An example of a protector equipped with this type of clip is shown in FIGS.

  As shown in FIG. 4, the protector 10 for the wire harness has a substantially T shape in plan view, and includes a first protector portion 11 corresponding to a T-shaped horizontal bar that protects the trunk portion W1 of the wire harness, It integrally has a second protector portion 12 corresponding to a T-shaped vertical bar that protects the branch line portion W2 of the wire harness. And the clip 120 is protrudingly provided by the outer surface of the center part of the longitudinal direction of the 1st protector part 11. As shown in FIG.

  The clip 120 includes a clip base 121 integrated with the first protector unit 11, a support column 122 standing on the clip base 121, and an umbrella-shaped extension extending obliquely from the tip of the support column 122 toward the clip base 121 side. It has a pair of elastic arms 123 and 123, and an engaging step portion 123a provided on the outer surface of the free end of each elastic arm 123.

  In this case, as shown in FIG. 5B, the clip 120 is locked by a rectangular (square) locking hole 50 having two pairs of opposing sides 51 and 52, and the tip of the clip 120 is connected to the panel. Are engaged by being inserted into a rectangular locking hole 50 formed in the above.

That is, by the elastic restoring action of the pair of elastic arms 123 and 123 once narrowed by insertion, the engagement step portion 123a of each elastic arm 123 is engaged with the hole edge of the opposite side 51 of the rectangular locking hole 50, In this state, the wall portion 125 provided integrally with the side surface of the support column 122 of the clip 120 is brought into contact with the hole wall of the other opposite side 52 of the locking hole 50 as the rotation preventing means. It is engaged with the stop hole 50 in a non-rotating state.
JP 2001-336670 A Japanese Utility Model Publication No. 6-69557

  By the way, in the case of the conventional clip 120 fixing structure shown in FIGS. 4 and 5, if there is variation in the dimensions of the clip 120, the anti-rotation function by the wall portion 125 provided as the anti-rotation means is not properly exhibited, The backlash of the clip 120 may become large. Further, when removing the clip 120, it is necessary to turn the hand to the back side of the panel to squeeze the elastic arm 23 and to remove the clip 120 from the locking hole 50, which is difficult to remove.

  In view of the above circumstances, an object of the present invention is to provide an engagement structure for a clip which improves the clip rotation prevention function and facilitates removal of the clip.

  According to a first aspect of the present invention, there is provided a support column erected on the clip base, a pair of umbrella-shaped elastic arms extending obliquely from the tip end of the support column toward the clip base side, and outer surfaces of the free ends of the elastic arms. The tip of an insertion-engagement type clip having an engagement step portion provided on the plug is inserted into a rectangular locking hole formed in the panel to be fixed, and the elasticity of the pair of elastic arms once narrowed by the insertion A clip in which the engaging step portion of each elastic arm is engaged with the hole edge of the opposite side of the rectangular locking hole by the restoring action, and the clip is prevented from rotating with respect to the locking hole by the rotation preventing means in that state. The clip base side member is provided with a non-rotating pin protruding substantially parallel to the insertion direction of the clip with respect to the locking hole, and on the panel, on the outside of the locking hole. Position A small hole into which the detent pin is inserted is provided, the clip is engaged with the locking hole, and the clip is fixed to the panel by inserting the detent pin into the small hole. Clip engagement structure.

  The invention according to claim 2 is the clip engagement structure according to claim 1, wherein a notch that facilitates breakage is provided at the base of the detent pin.

  The invention of claim 3 is the clip engagement structure according to claim 1 or 2, wherein the clip base is integrally provided on the outer surface of the protector that is fixed to the vehicle body panel while protecting the wire harness. The detent pin protrudes from the outer surface of the protector.

  The invention according to claim 4 is the clip engagement structure according to claim 3, wherein the protector is a first protector portion corresponding to a T-shaped horizontal bar that protects the trunk portion of the wire harness, and the wire harness. And a second protector portion corresponding to a T-shaped vertical bar that protects the branch line portion of the first protector portion, and the clip is provided on the outer surface of the first protector portion, and the detent The pin is provided in the outer surface of the said 2nd protector part, It is characterized by the above-mentioned.

  According to the first aspect of the present invention, the anti-rotation pin is provided separately from the clip, and the small hole into which the anti-rotation pin enters is provided at a position away from the locking hole. Therefore, regardless of variations in the dimensions of the clip, The clip can be reliably prevented from rotating. Therefore, useless play of the clip in the engaged state can be suppressed, and a firm fixed state can be obtained. Further, when removing the clip, the clip is rotated to a position close to a diagonal line with respect to the rectangular locking hole while breaking the detent pin. Then, since the opening dimension in the diagonal direction is larger than the opening dimension in the opposite side direction, the engagement step portion can be disengaged from the hole edge of the locking hole, and the clip is pulled out from the locking hole as it is. Can do. Therefore, the clip can be easily removed simply by operating from the front side of the panel.

  According to the invention of claim 2, since the notch is provided at the base of the detent pin, when the clip is to be rotated with a predetermined force or more, the detent pin can be easily broken, and the clip can be easily Detachable.

  According to the invention of claim 3, since the clip and the detent pin are provided in the protector for the wire harness, the wire harness can be fixed to the vehicle body panel without rattling. Moreover, when removing a clip, a clip can be easily removed from a vehicle body panel, for example by rotating a clip with a wire harness.

  According to the invention of claim 4, since the clip and the non-rotating pin are arranged in the first protector part corresponding to the T-shaped horizontal bar of the T-shaped protector and the second protector part corresponding to the vertical bar, respectively, the balance is good. The wire harness can be fixed to the vehicle body panel.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view of a wire harness protector provided with a clip according to an embodiment.

  The protector 10 includes a first protector portion 11 corresponding to a T-shaped horizontal bar that protects the trunk line portion W1 of the wire harness, and a second protector corresponding to a T-shaped vertical bar that protects the branch line portion W2 of the wire harness. It has a T-shape integrally with the portion 12. A clip 20 projects from the outer surface of the central portion in the longitudinal direction of the first protector portion 11, and a detent pin 30 projects from the outer surface of the second protector portion 12.

  The object to be locked by the clip 20 in this case is a rectangular (square) locking hole 50 having two pairs of opposite sides 51 and 52 as shown in FIG. The anti-rotation pin 30 protrudes substantially parallel to the insertion direction of the clip 20 with respect to the locking hole 50, and is positioned on the outside of the locking hole 50 on the panel so that the anti-rotation pin 30 is inserted. A hole 60 is provided.

  The clip 20 includes a clip base 21 integrated with the first protector section 11, a support column 22 standing on the clip base 21, and an umbrella-shaped extension extending obliquely from the tip of the support column 22 toward the clip base 21 side. A pair of elastic arms 23, 23 and an engaging step portion 23 a provided on the outer surface of the free end of each elastic arm 23 are provided.

  The clip 20 is engaged with the locking hole 50 of the panel by inserting the tip of the clip 20 into a rectangular locking hole 50 formed in the panel.

  That is, the engagement step portion 23a of each elastic arm 23 is engaged with the hole edge of the opposing side 51 of the rectangular locking hole 50 by the elastic restoring action of the pair of elastic arms 23, 23 once narrowed by the insertion. In this state, the clip 20 is engaged with the locking hole 50 so that the locking pin 30 serving as the locking means is inserted into the small hole 60 positioned outside the locking hole 50. The clip 20 is prevented from rotating. In this case, the side surface of the column 22 of the clip 20 is a curved surface such as an arc surface so that the clip 20 does not rattle in the locking hole 50 and can be smoothly rotated when the clip 20 is removed. It is configured as.

  As described above, the rotation prevention pin 30 is provided separately from the clip 20, and the small hole 60 into which the rotation prevention pin 30 is inserted is provided at a position away from the engagement hole 50. Therefore, the variation in the size of the clip 20 is not affected. The clip 20 can be reliably prevented from rotating. Therefore, unnecessary backlash of the clip 20 in the engaged state shown in FIG. 2A can be suppressed, and a firm fixed state can be obtained.

  When removing the clip 20, as shown in FIG. 2B, the clip 20 is rotated to a position close to a diagonal line with respect to the rectangular locking hole 50 while breaking the locking pin 30. Then, since the opening dimension in the diagonal direction is larger than the opening dimension in the opposite side direction, the engagement step portion 23a can be disengaged from the hole edge of the locking hole 50, and the clip 20 is directly connected to the locking hole. Can be pulled out from. Therefore, the clip 20 can be easily removed only by an operation from the front side of the panel.

  Moreover, since the clip 20 and the non-rotating pin 30 are provided in the protector 10 for the wire harness, the wire harness can be fixed to the vehicle body panel without rattling, and when the clip 20 is removed, for example, the clip is held with the wire harness. By rotating 20, the clip 20 can be easily removed from the vehicle body panel.

  In the present embodiment, the clip 20 and the non-rotating pin 30 are arranged in the first protector portion 11 corresponding to the T-shaped horizontal bar of the T-shaped protector 10 and the second protector portion 12 corresponding to the vertical bar, respectively. The wire harness can be fixed to the vehicle body panel in a well-balanced manner.

  As shown in two examples in FIGS. 3A and 3B, if the notches 31 and 32 for facilitating breakage are provided at the base of the rotation stopper pin 30, the clip 20 can be moved with a predetermined force or more. When the rotation is attempted, the locking pin 30 can be easily broken, so that the clip 20 can be removed more easily.

  Further, the cross-sectional shape of the anti-rotation pin 30 is not limited to a circle but may be a square.

It is a perspective view of the protector for wire harnesses which provided the clip of the embodiment of the present invention. (A) is sectional drawing of the engagement state of the clip, (b) is sectional drawing which shows the state at the time of removal of a clip. (A), (b) is a figure which shows each example at the time of providing a notch in the root of a non-rotating pin. It is a perspective view which shows the structure of the conventional clip. (A) is a side view of the conventional clip, (b) is a Vb-Vb arrow sectional view of (a).

Explanation of symbols

W1 Trunk line part of wire harness W2 Branch line part of wire harness 10 Protector 11 First protector part 12 Second protector part 20 Clip 21 Clip base 22 Strut 23 Elastic arm 23a Engagement step part 30 Non-rotating pin 31, 32 Notch 50 Engagement Stop hole 51, 52 Opposite side

Claims (4)

A strut erected on the clip base, a pair of umbrella-shaped elastic arms extending obliquely from the front end of the strut toward the clip base, and an engagement stage provided on the outer surface of the free end of each elastic arm Each elastic arm by the elastic restoring action of the pair of elastic arms once closed by inserting the tip end of the insertion-engagement type clip having a portion into a rectangular locking hole formed in the panel to be fixed The engaging step portion of the clip is engaged with the hole edge of the opposite side of the rectangular locking hole, and in this state, the clip is locked against the locking hole by the rotation preventing means. ,
The clip base side member is provided with a non-rotating pin protruding substantially parallel to the insertion direction of the clip with respect to the locking hole, and is positioned outside the locking hole on the panel. The clip is fixed to the panel by providing a small hole into which the clip is inserted, engaging the clip with the locking hole, and inserting the detent pin into the small hole. Construction. The clip engaging structure according to claim 1,
A clip engagement structure characterized in that a notch for facilitating breakage is provided at the base of the detent pin. The clip engaging structure according to claim 1 or 2,
The clip base is integrally provided on an outer surface of a protector that is fixed to a vehicle body panel while protecting a wire harness, and the locking pin protrudes from the outer surface of the protector. Construction. The clip engaging structure according to claim 3,
The protector is integrated with a first protector portion corresponding to a T-shaped horizontal bar that protects the trunk line portion of the wire harness and a second protector portion corresponding to a T-shaped vertical bar that protects the branch line portion of the wire harness. The clip has a T-shape, and the clip is provided on an outer surface of the first protector portion, and the detent pin is provided on an outer surface of the second protector portion. Combined structure.

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