JP2008286327A - On-board loading article - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an on-board loading article to be fixed to a bracket protruding from a vehicle body, capable of suppressing rattling of the bracket within the bracket mounting part of the article. <P>SOLUTION: A mounting part 20 formed rigidly on the on-board loading article 10 is equipped with a rectangular frame 22 provided with a through hole 21 stretching in the bracket 30 inserting direction, and a fastening pawl 26 to be inserted fast into a fastening hole 33 formed in the bracket 30 is formed protrusively in the inner surface central part of the outside wall 24 of the frame 22. A pair of spring pieces 28 are installed protrusively at the two sides of the inner surface of the inside wall 23 confronting the outside wall 24 in such a way as to extend in the bracket 30 inserting direction and incline toward the outside wall 24, and the bracket 30 is inserted between the fastening pawl 26 inside the frame 22 and the spring pieces 28, and the fastening pawl 26 is fastened to the fastening hole 33 in the bracket 30, while the back faces of the two sides of the fastening hole 33 in the bracket 30 are energized in the fastening direction by the spring pieces 28. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention relates to a vehicle-mounted product, and more particularly to a device that is attached to a bracket projecting from a vehicle body and that fixes the vehicle-mounted product that includes a wire harness protector, an electrical connection box, and the like via the bracket.

  As this type of vehicle-mounted product, a case main body of an electrical junction box, a case main body of a protector through which a wire harness is inserted, a clamp that is fitted around a corrugated tube through which the wire harness is inserted, or the like can be cited. When fixing an electrical junction box or wire harness to the vehicle body, a bracket that has been bolted or welded to the vehicle body panel is conventionally inserted and locked into the case body of the electrical junction box or a protector or clamp attached to the wire harness. And fixed.

5 (A) and 5 (B) show a well-known example as a mounting structure between the on-vehicle product and the bracket (see Japanese Utility Model Laid-Open No. 6-43309).
The clamp 1 is formed by connecting an attachment member 2 having a substantially semicircular arc shape and a holding member 3 through a hinge 4 so as to be openable and closable, and the attachment member 2 and the holding member 2 are held by a corrugated tube T sheathed on the wire harness W / H. The attachment member 2 and the holding member 3 are locked and coupled in a closed state by fitting the member 3 to the outside and engaging the lock claw 5a with the locked portion 5b. On the free end side of the attachment member 2, a locking portion 6 attached to the bracket 9 is formed. The locking portion 6 is formed of a frame provided with an insertion hole 6a through which the bracket 9 can be inserted. The locking portion 6 includes an elastic locking tongue piece 6b and the locking tongue piece 6b. A locking claw 6c protrudes from the side surface of the insertion hole 6a, and the locking hole 6c is fitted into the locking hole 9a of the bracket 9 inserted into the insertion hole 6a to lock the mounting member 2 to the bracket 9. It is configured to be installed in a state.

  However, as shown in FIG. 6, there is a gap 7 between the bracket 9 inserted into the insertion hole 6a and the inner wall 6d of the locking portion 6, and a rib or the like for pressing the bracket 9 into the insertion hole 6a. Is not provided, the backlash of the bracket 9 is generated in the insertion hole 6a, causing the generation of abnormal noise.

Japanese Utility Model Publication No. 6-43309

  The present invention has been made in view of the above problems, and in a vehicle-mounted product attached to a bracket protruding from a vehicle body, the rattling of the bracket inserted and locked in the vehicle-mounted product is eliminated, and the generation of abnormal noise is prevented. The challenge is to do.

In order to solve the above problems, the present invention is a vehicle-mounted product provided with a mounting portion fixed to a bracket protruding from a vehicle body,
The mounting portion includes a rectangular frame portion penetrating in the insertion direction of the bracket,
A locking claw that is inserted and locked in a locking hole formed in the bracket is provided at the center of the inner surface of the outer wall portion of the frame portion, and both side portions of the inner surface of the inner wall portion facing the outer wall portion A pair of spring pieces projecting from each other, the pair of spring pieces extending in the bracket insertion direction and inclined toward the outer wall side,
The bracket is inserted between the locking claw and the spring piece in the frame portion, the locking claw is locked in the locking hole of the bracket, and the back sides of both side portions of the locking hole of the bracket are The vehicle-mounted product is provided in which the pair of spring pieces are biased in the locking direction.

  In the vehicle-mounted product having the above configuration, since the spring piece portion presses the bracket inserted into the frame portion of the mounting portion against the outer wall portion side, it is possible to suppress rattling of the bracket in the frame portion and Abnormal noise can be prevented.

  In addition, since the difference in the plate thickness of the bracket can be absorbed by the bending of the spring piece portion, the mounting portion formed with one type of mold can be shared with various brackets with different plate thicknesses. The cost can be reduced.

The bracket projecting from the vehicle body to which the mounting portion is fixed is made of a metal plate, and the locking hole is formed in the center portion in the width direction of the lower portion of the rectangular downward insertion portion of the bracket, It is inserted downward from the upper opening of the mounting part,
The spring piece portion provided in the attachment portion protrudes downward from the upper part of the inner surface of the inner wall portion, the protruding length of the spring piece portion is 1/3 to 1/2 of the vertical height of the attachment portion, and the thickness is It is constant.

  The projecting length of the spring piece is set to 1/3 to 1/2 of the vertical height of the mounting part. If it is less than 1/3, the amount of bending of the spring piece will be small, and the common range of bracket plate thickness is also narrow. Therefore, if it exceeds 1/2, the amount of bending of the spring piece portion becomes too large, so that the pressing force of the bracket is weakened, and it becomes impossible to suppress rattling.

  The mounting portion is integrally formed on the outer surface of the case main body of the protector through which the electrical junction box or the wire harness is inserted, or is integrally formed with a clamp that is externally fitted to the corrugated tube that is inserted into the wire harness. .

  As described above, according to the present invention, since the bracket inserted in the frame portion of the attachment portion is urged in the locking direction by the spring piece portion, the bracket can be pressed against the outer wall portion side, It is possible to suppress the rattling of the bracket and to prevent the generation of abnormal noise due to the rattling.

Moreover, since the difference in the plate thickness of the bracket can be absorbed by the bending of the spring piece portion, the versatility of the on-vehicle product provided with the mounting portion for inserting and locking the bracket can be increased, and the cost can be reduced. .
Furthermore, by making the protruding length of the spring piece part 1/3 to 1/2 of the vertical height of the mounting part, the versatility for brackets with different plate thickness and the pressing force of the bracket by the spring piece part are balanced. Can be well prepared.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 4 show a protector 10 for a wire harness according to a first embodiment of the present invention.
The protector 10 includes a protector body 11 having an upper surface opening through which the wire harness W is inserted, and a lid 12 that covers the upper surface opening of the protector body 11 and is locked. The protector body 11 and the lid 12 are each integrally formed of resin.

The protector body 11 includes a hook-shaped wire insertion portion 13 in which side walls 15 are erected from both side edges in the width direction of the bottom wall 14, and the bottom wall 14 protrudes at both ends in the length direction of the wire insertion portion 13. The tape winding tongue piece 16 is provided.
On the outer surface of the upper end portion of the side wall 15 of the wire insertion portion 13, a lid lock frame portion 17 that fits with a lock claw 19 described later is provided in a plurality of locations. Further, an attachment portion 20 to a bracket 30 described later is integrally provided on the outer surface of one side wall 15 of the wire insertion portion 13.

  The mounting portion 20 includes a rectangular frame portion 22 that penetrates the insertion hole 21 in the vertical direction, and the inner wall portion 23 of the frame portion 22 is integrated with the side wall 15 of the protector body 11 so as to be continuous. As shown in FIGS. 2A and 2B, on the inner surface of the outer wall portion 24 facing the inner wall portion 23, a strip-like locking tongue piece having slits 27 on both sides and having a lower end as a free end. 25, and a locking claw 26 inserted and locked in a locking hole 33 formed in the bracket 30 is provided on the side surface of the inner wall 23 of the locking tongue 25. Further, a pair of spring piece portions 28 extending in the vertical direction are provided on both side portions of the inner surface of the inner wall portion 23 toward both side positions sandwiching the locking claw 26.

The spring piece portion 28 includes a base portion 28a projecting from the upper part of the inner surface of the inner wall portion 23, and a spring portion 28b projecting downward from the base portion 28a, and extends from the base portion 28a side to the tip 28c of the spring portion 28b. The front end 28c of the spring portion 28b is brought into contact with the locking tongue piece 25 by inclining in the direction close to the outer wall portion 24.
The protruding length (vertical height) L1 of the spring piece portion 28 is in the range of 1/3 to 1/2 of the vertical height H1 of the mounting portion 20, and is 1/2 in this embodiment.
The thickness T1 of the spring portion 28b is constant over the entire length.

  The bracket 30 is made of a metal plate bent in an L shape as shown in FIG. 1, the horizontal portion 31 is bolted to the vehicle body panel P, and the rectangular downward insertion portion 32 is projected from the vehicle body panel P. ing. A locking hole 33 is formed in the center in the width direction below the downward insertion portion 32.

  The lid 12 includes an upper wall 18 that closes the front surface of the upper surface opening of the protector body 11, and lock claws 19 that project downward from both side edges of the upper wall 18 in the width direction.

When the wire harness W is fixed to the vehicle body panel P using the protector 10 having the above-described configuration, first, the wire harness W is inserted into the protector body 11 of the protector 10 as shown in FIG. The lock claw 19 and the lid lock frame portion 17 are locked together by covering the lid 12 and the wire harness W is wound around the tape winding tongue 16 of the protector body 11 with the tape 34 and positioned and fixed.
Next, as shown in FIG. 4, the downward insertion portion 32 of the bracket 30 protruding from the vehicle body panel P is inserted downward from the upper opening of the through hole 21 of the attachment portion 20 of the protector body 11, and the downward insertion portion The locking claw 26 protruding from the frame portion 22 of the mounting portion 20 is inserted and locked into the locking hole 33 of the mounting portion 20, and the protector 10 is locked and fixed to the bracket 30.

  At this time, the downward insertion portion 32 of the bracket 30 is inserted between the spring piece portion 28 and the locking tongue piece 25, and the back side of both side portions of the locking hole 33 is locked by the spring piece portion 28. And is pressed against the locking tongue 25 and the outer wall 24 side. Thereby, the play of the bracket 30 in the through hole 21 can be suppressed, and the generation of abnormal noise due to the play can be prevented.

Furthermore, since the spring piece 28 protrudes so that its tip 28c contacts the locking tongue piece 25, even if the thickness of the downward insertion portion 32 is thin, the downward insertion portion 32 The backside can be pressed to suppress backlash. In addition, when the plate thickness of the downward insertion portion 32 is thick, the downward insertion portion 32 is formed between the locking tongue piece 25 and the spring portion 28b of the spring piece portion 28 by bending toward the inner wall portion 23 side. A gap that can be inserted is formed, and the back side of the downward insertion portion 32 can be pressed to suppress backlash.
Since the protruding length L1 of the spring piece 28 is ½ of the vertical height H1 of the mounting portion 20, various brackets having different plate thicknesses can be pressed with sufficient spring force.

  In addition, this invention is not limited to the said embodiment. For example, the mounting portion 20 may be integrally formed on a case body of an electrical junction box or a clamp that is fitted around a corrugated tube that passes through a wire harness. Moreover, the attachment part 20 is good also as a structure which inserts the bracket 30 upwards from the lower side.

It is a whole perspective view showing a protector and a bracket concerning a first embodiment of the present invention. The attachment part of the protector main body shown in FIG. 1 is shown, (A) is a top view, (B) is the BB sectional drawing of (A). It is a perspective view which shows the state which penetrated the wire harness to the protector shown in FIG. 1, and was fixed to the bracket. FIG. 4 is a cross-sectional structure explanatory view taken along line IV-IV in FIG. 3. (A) (B) is a figure which shows a prior art example. It is principal part sectional drawing which shows the trouble of a prior art example.

Explanation of symbols

10 Protector (on-vehicle product)
DESCRIPTION OF SYMBOLS 11 Protector body 20 Mounting part 21 Through-hole 22 Frame part 23 Inner wall part 24 Outer wall part 26 Locking claw 28 Spring piece part 30 Bracket 32 Downward insertion part 33 Locking hole W Wire harness

Claims (3)

A vehicle-mounted product having a mounting portion fixed to a bracket protruding from the vehicle body,
The mounting portion includes a rectangular frame portion penetrating in the insertion direction of the bracket,
A locking claw that is inserted and locked in a locking hole formed in the bracket is provided at the center of the inner surface of the outer wall portion of the frame portion, and both side portions of the inner surface of the inner wall portion facing the outer wall portion A pair of spring pieces projecting from each other, the pair of spring pieces extending in the bracket insertion direction and inclined toward the outer wall side,
The bracket is inserted between the locking claw and the spring piece in the frame portion, the locking claw is locked in the locking hole of the bracket, and the back sides of both side portions of the locking hole of the bracket are A vehicle-mounted product, wherein the pair of spring pieces are biased in the locking direction. The bracket projecting from the vehicle body to which the mounting portion is fixed is made of a metal plate, and the locking hole is formed in the center portion in the width direction of the lower portion of the rectangular downward insertion portion of the bracket, It is inserted downward from the upper opening of the mounting part,
The spring piece portion provided in the attachment portion protrudes downward from the upper part of the inner surface of the inner wall portion, the protruding length of the spring piece portion is 1/3 to 1/2 of the vertical height of the attachment portion, and the thickness is The vehicle-mounted product according to claim 1, which is constant.   The mounting part is integrally formed on the outer surface of the case body of the protector through which the electrical junction box or wire harness is inserted, or the mounting part is formed integrally with a clamp that is externally fitted to a corrugated tube that is inserted into the wire harness. The on-vehicle mounted product according to claim 1 or claim 2.

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