JP2009065798A - Wire harness protector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To fix a lead-out portion of a wire harness inserted into an onboard protector without displacement even if a tensile force is applied to the lead-out portion. <P>SOLUTION: The protector through which the wire harness is inserted includes a projecting band fastening portion formed on the longitudinal front end of a protector body having a bottom portion and both side portions. The band fastening portion has a sectional L shape with a bottom portion leading to the bottom portion of the protector body and a side portion projecting from one lateral side of the bottom portion, and has a projecting wire harness shift preventing rib in an L shape that projects inwardly on the projecting front end of the bottom portion and the side portion, and a projecting band-passing cylindrical portion formed on the outer surface of the front side of the side portion. The wire harness is inserted in contact with the inner surfaces of the bottom portion and side portion of the band fastening portion, and a fastening band passing through the band-passing cylindrical portion is put over the exterior of the wire harness not in contact with the band fastening portion to fasten and fix the wire harness to the outer surface of the band fastening portion. The wire harness fastened with the fastening band is led out over the shift preventing rib. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a protector that protects and regulates a wire harness that is routed in a vehicle, and in particular, prevents positional deviation of a wire harness that is drawn from the protector.

Conventionally, a wire harness routed in an automobile is provided with a protector made of a resin molded product for the purpose of protecting the wire harness from an external interference material or restricting the wire harness wiring line, and the like. A wire harness is inserted through the cable.
As this type of protector, for example, a protector disclosed in JP-A-7-67229 (Patent Document 1) is provided. As shown in FIG. 9, the protector 1 has a harness fixing rib 2 projecting from the tip of the bowl-shaped protector 1, and an opening 3 a is provided on one side of the harness fixing rib 2 on the protector side. The band fixing member 3 is provided integrally. The wire harness W / H is placed along the harness fixing rib 2, the band clamp 4 is wound around the wire harness W / H and bound, and the band clamp 4 is inserted into the band fixing member 3 through the opening 3a. In the protector having the above configuration, the band clamp 4 is fixed by the band fixing member 3 to prevent the band clamp 4 from being displaced.

  Since the inner surface of the harness fixing rib 2 of the protector 1 is smooth when the wire harness W / H receives a tensile force along the insertion direction from the outside of the protector 1, the wire harness covered with the protector having the above configuration is smooth. The wire harness W / H in 1 is pulled toward the tension side and is easily displaced. As a result, there is a problem that variations in the dimensions of the wire harness drawn from the protector are likely to occur. The wire harness W / inside the protector 1 is also used when the wire harness covered with the protector is stored in a plastic case or the like from a wire harness assembly factory and transported, or when it is hung just before being assembled to a vehicle. H is easily misaligned, and there is room for further improvement in terms of preventing misalignment of the wire harness W / H.

JP 7-67229 A

  This invention is made | formed in view of the said problem, and makes it a subject to prevent the positional shift of the wire harness inserted in the inside of a vehicle-mounted protector, and to improve the dimensional accuracy of the wire harness pulled out from a protector.

In order to solve the above-mentioned problems, the present invention is a protector comprising a resin molded product that is inserted through a wire harness.
A band fastening part projects from the longitudinal end of the protector body in the shape of a bowl having a bottom plate part and both side plate parts on the wire harness drawer side,
The band fastening portion has an L-shaped cross section having a bottom portion continuous to the bottom plate portion of the protector body and a side portion projecting from one side in the width direction of the bottom portion, and the inner side of the L-shaped cross section is inserted into the wire harness. As a support portion, a rib for preventing the deviation of the wire harness is projected on the inner surface side of the bottom portion and the side portion, and a band-through tube portion is projected on the outer surface of the side portion,
A configuration in which a fastening band passing through the band-passing tube portion is wound and fixed around an outer surface of the wire harness from an outer surface of the band fastening portion, and the wire harness fastened by the fastening band is pulled out over the misalignment prevention rib. A protector for a wire harness is provided.

The misalignment prevention rib of the wire harness is an L-shaped rib that protrudes toward the inner surface side of the bottom end and the protruding end of the side portion serving as the wire harness insertion support portion.
Alternatively, a rib for preventing the deviation of the wire harness protrudes from the inner surface of the distal end of the side portion serving as the wire harness insertion support portion, and protrudes from the inner surface of the bottom portion with an interval perpendicular to the insertion direction of the wire harness. Has been established.

  As described above, in the protector of the present invention, the wire harness pulled out from the inside is fastened and fixed by band tightening at the band tightening portion provided at the leading end of the protector on the drawer side. In the band fastening portion, a wire harness insertion support portion including a bottom portion and a side portion thereof is provided with a rib for preventing misalignment of the wire harness protruding to the inner surface side in contact with the wire harness, and the wire harness is connected to the misalignment preventing rib. Since the wire harness is bent at the contact portion and is pulled over the slip prevention rib, the wire harness is pressed by the slip prevention rib. Therefore, even if the wire harness receives a tensile force along the insertion direction from the outside of the protector, the bent portion of the wire harness abuts against the rib for preventing deviation and movement in the wire harness insertion direction is prevented. Can be prevented from being displaced.

The misalignment prevention rib of the wire harness is an L-shaped rib that protrudes toward the inner surface side of the bottom end and the protruding end of the side portion serving as the wire harness insertion support portion.
In this way, the slip prevention rib is caused to be in contact with the wire harness in two longitudinal and lateral directions by causing the bottom side and the inner surface of the side part to be L-shaped on the tip side of the band fastening portion. Can do. Therefore, the positional deviation of the wire harness can be more effectively prevented, and the wire group of the wire harness, which often has a considerable weight, is stably held by the band fastening portion having the L-shaped cross section to tighten the band. can do.
The L-shaped misalignment prevention rib is preferably continuous from the bottom end to the side end.

  Alternatively, the rib for preventing the deviation of the wire harness protrudes from the inner surface at the front end of the side portion serving as the wire harness insertion support portion, and is spaced from the inner surface of the bottom portion in the direction orthogonal to the insertion direction of the wire harness. It is projecting.

As described above, the rib for preventing the deviation of the wire harness is provided on the inner surface of the front end of the side of the band fastening portion, and the gap is provided on the inner surface of the side of the band fastening portion in the direction orthogonal to the insertion direction of the wire harness. If the ribs for preventing misalignment of the wire harness are interspersed, a large number of contact points between the wire harness and the misalignment preventing rib can be provided on the inner surface of the band fastening portion, and the misalignment of the wire harness is effectively performed. Can be prevented.
In addition, the insertion space for the wire harness is not significantly narrowed by the rib for preventing misalignment, and the wire harness can be inserted into the band fastening portion in a stable state and fixed by band fastening.

  As an arrangement pattern of deviation preventing ribs scattered on the bottom inner surface of the band fastening part, small pieces of deviation preventing ribs are arranged at a predetermined pitch, and the length direction of each deviation preventing rib is inserted into the wire harness. You may make it correspond to the direction orthogonal to a direction, or you may make it incline in C shape.

Furthermore, in the protector according to the present invention, it is preferable that a rib for preventing the fastening band from being displaced protrudes from the bottom part of the band fastening part and / or the front end part of the side part.
As described above, by providing a band misalignment prevention rib at the bottom part of the band fastening part and / or the outer surface tip part of the side part, even when the wire harness is pulled in the insertion direction and the band also receives the tensile force. The movement of the band in the direction can be prevented, and the positional deviation of the band can be prevented. In other words, since the wire harness can be firmly fixed at a predetermined position without the band being displaced, it is possible to more effectively prevent the position deviation of the wire harness.

When the wire harness drawn out from the protector is branched and drawn out in three different directions, the bottom plate portion is branched in the width direction on the wire harness drawing side of the protector, and the branched one side is used as a band fastening portion. And the other side as a tape winding fixing part,
A partition wall for branching the wire harness is projected at the center of the bottom of the band fastening part, and the first band fastening part on one side of the partition projects the bottom plate and projects the outer side of the side plate to the outer edge of the bottom plate. While providing a band tube,
In the second band fastening portion on the other side that is partitioned, a hole for passing the band through the bottom plate is formed, and the through-tube portion is provided on the outer surface of the side plate protruding from the outer edge of the bottom plate.

  With the above configuration, when the wire harness pulled out from the protector branches and is routed in different directions, each wire harness can be fixed separately in the routing direction at the position where the wire harness is pulled out from the protector, and each branched wire harness can be securely connected. Therefore, the positional deviation can be prevented, and the dimensional accuracy of the wire harness drawn from the protector can be improved.

  As described above, in the protector of the present invention, the wire harness pulled out from the tip of the protector is pressed against the band tightening portion to be inserted and fixed, and the rib for preventing misalignment of the wire harness is protruded. Therefore, the wire harness is bent by the rib for preventing misalignment and is pulled out over the rib for preventing misalignment, so that the wire harness is pressed by the rib for preventing misalignment. Therefore, even if the wire harness receives a tensile force along the insertion direction from the outside of the protector, the wire harness abuts against the deviation preventing rib and the movement in the wire harness insertion direction is prevented, so the position of the wire harness Misalignment can be prevented.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 6 show a first embodiment of a protector mounted on an automobile of the present invention.
As shown in FIGS. 1 and 2, the protector 10 of the first embodiment extends in the length direction X of the wire harness W / H, and both ends thereof are used as the entrance / exit of the wire harness, and are converged and inserted from one entrance. The wire harness W / H is branched and pulled out from the other outlet in three directions.
On the outlet side, a first band fastening part 12, a second band fastening part 13, and a tape fastening part 17 are provided, and the wire harness W / H is fixed and pulled out without displacement. A tape fastening portion 18 is provided on the other inlet side, and the wire harness W / H to be inserted into the protector 10 is positioned and fixed.

  The protector body 11 is molded from a synthetic resin such as nylon or polypropylene, and the protector main body 11 from the inlet side to the outlet side branched into the three parts has both side portions 11b protruding from both ends in the width direction of the bottom plate portion 11a. It has a shape.

  As described above, on the wire harness pull-out side of the protector main body 11, the wire harness W / H to be pulled out is branched and the wiring direction is made different. Therefore, the tape winding portion 17 is protruded on one side in the width direction. On the other side, in order to further branch the wiring direction of the wire harness W / H into two directions, a partition wall 11c protrudes from the bottom plate portion 11a, and a first band fastening portion 12 and a second band fastening portion 13 are provided. ing. That is, the second band fastening part 13 is disposed between the first band fastening part 12 and the tape winding part 17 on both sides.

  The first band fastening part 12 protrudes outward from the second band fastening part 13, and as shown in FIG. 3, a bottom part 12 a continuous to the bottom plate part 11 a of the protector body 11 and a side plate part 11 b of the protector body 11. The cross section is L-shaped with a continuous side portion 12b. At the projecting ends of the bottom 12a and the side 12b, L-shaped misalignment prevention ribs 12c projecting toward the inner surface and the outer surface are provided. The wire harness W / H passing through the wire harness insertion support portion formed by the bottom portion 12a and the side portion 12b is moved over the slip prevention rib 12c and pulled out outward.

  A band-passing cylinder portion 12e is projected on the outer surface on the front end side of the side portion 12b, and the first fastening band B-1 is passed through and attached to the band-passing hole 12d of the hollow portion. In addition, a pair of band shift prevention ribs 12f are projected from the side edge of the bottom portion 12a. Thus, the wire harness W passing through the inner surface of the bottom portion 12a through the gap 12f between the band misalignment prevention ribs 12f after the first fastening band B-1 having passed through the band-through tube portion 12e is wound along the outer surface (lower surface) of the bottom portion 12a. / H.

As shown in FIG. 3, the second band fastening portion 13 is a side portion provided at a branch position between the bottom portion 13 a partitioned by a partition wall 11 c projecting from the bottom plate portion 11 a of the protector body 11 and the tape winding portion 17. 13b, and the wire harness insertion support portion is formed by the bottom portion 13a and the side portion 13b.
A protruding rib 13c having an L shape in plan view is provided at the protruding end of the side section 13b, and the protruding rib 13c-1 on the inner surface side of the side section 13b is connected to the protruding section 13c-1 of the wire harness. The protrusion 13c-2 to the lower outer surface of the bottom portion 13a is used for preventing the displacement of the second fastening band B-2. Further, a rib 13g for preventing misalignment in the direction orthogonal to the wire harness insertion direction is provided on the upper inner surface of the bottom portion 13a.
Further, a band-through tube portion 13e for the second fastening band is provided on the outer surface of the side portion 13b, and a through-hole 13f for band-passing is provided in the bottom portion 13a. The second fastening band B-2 is passed through the through-hole 13d of the band-passing tube portion 13e, wound around the lower outer surface of the bottom portion 13a, pulled out from the through-hole 13f of the bottom portion 13a, wound around the wire harness, and fastened. At this time, the protrusion 13c-2 can prevent displacement.

The tape winding part 17 is also provided with a bottom part 17a and a side part 17b, is used as a wire harness insertion support part having an L-shaped cross section, and ribs 17c for preventing the deviation of the wire harness protruding from the inner surface of the bottom part 17a and the side part 17b are provided on the wire harness. A pair is provided at intervals in the insertion direction. The wire harness is taped and fixed in a region sandwiched between the deviation preventing ribs 17c, and a tape deviation preventing rib 17d is provided on the outer surface of the side portion 17b.
The tape winding portion 18 at the other end, which is the entrance side of the wire harness, has the same shape and is provided with a rib 18c for preventing misalignment.

Hereinafter, assembly of the wire harness W / H to the protector 10 will be described.
As shown in FIG. 2, the wire harness W / H is inserted into the protector body 11 and the main wire harness W / H that is converged on the entrance side is connected to W / H-1 to W / H-3 on the exit side. It is drawn out as a branch line branched in three directions.
The wire harness W / H-1 is fixed by the first band fastening portion 12 and pulled out by the first fastening band B-1, and the wire harness W / H-2 is drawn by the second band fastening portion 13 at the first fastening band B-2. The wire harness W / H-3 is fixed by winding the tape T at the tape winding portion 17. On the outlet side, the wire harnesses W / H-1 and W / H-2 fixed by the first band fastening part 12 and the second band fastening part 13 are branched by a partition wall 11c. On the entrance side, the W / H of the trunk line is fixed by winding the tape T at the tape winding portion 18.

As shown in FIG. 6 (A), the wire harness W / H-1 is inserted into and supported by the inner surfaces of the bottom 12a and the side portion 12b. In the state, after the first fastening band B-1 is wound around the outer surface of the bottom portion 12a and the side portion 12b, it is wound around the outer periphery of the wire harness W / H-1 that is not in contact with the bottom portion 12a and the side portion 12b. The first fastening band B-1 is fastened and fixed through the locking portion Bx.
Specifically, in a state where the first fastening band B-1 is passed through the through hole 12d of the band-through tube portion 12e and the locking portion Bx is placed on the tip of the band-through tube portion 12e, the band portion By is placed on the bottom surface of the bottom portion 12a. Is wound around the outer peripheral surface of the wire harness W / H-1 through the gap 12f for preventing band shift, and then inserted into the locking portion Bx and locked.
The wire harness W / H-1 fixed by the first fastening band B-1 is, as shown in FIGS. 5A and 5B, a deviation preventing rib 12c protruding to the inner surface side of the first band fastening portion 12. The bent portion D is pulled out of the protector 10 by overcoming the deviation preventing rib 12c.

  As shown in FIG. 6B, the wire harness W / H-2 is fixed to the second band fastening portion 13 in a state where the second fastening band B-2 is passed through the through-hole 13d of the band passing cylinder portion 13e. In addition, by inserting the through hole 13f of the bottom portion 13a from the outer surface of the second band fastening portion 13 and winding the second fastening band B-1 over the outer surface of the wire harness W / H-2, the wire harness W / H-2 is fixed to the second band fastening part 13. In the second band tightening portion 13, similarly to the first band tightening portion 12, the wire harness W / H-2 fixed by the second fastening band B-2 protrudes to the inner surface side of the second band tightening portion 13. It is bent by the misalignment prevention ribs 13c-1 and 13g, gets over the misalignment prevention ribs 13c-1 and 13g, and is pulled out from the protector 10.

As described above, ribs for preventing misalignment of the wire harness are provided at the protruding ends of the bottom portion 12a and the side portion 12b of the first band fastening portion 12 and the protruding ends of the bottom portion 13a and the side portion 13b of the second band fastening portion 13. Therefore, even if the wire harnesses W / H-1 and W / H-2 receive a tensile force along the insertion direction X, the bent portions of the wire harness W / H are prevented from being applied to the misalignment prevention ribs 12c, 13c-1 and 13g. Since D abuts and the movement of the wire harness W / H in the insertion direction is prevented, the displacement of the wire harness W / H can be prevented.
In particular, the first band tightening portion 12 includes the slip prevention ribs 12c, and the second band tightening portion 13 includes the slip prevention ribs 13c-1 and 13g in the wire harness W / H-1 and W / H-2 insertion directions, respectively. Since the wire harness is prevented from being displaced in two vertical and horizontal directions, the positional deviation of the wire harness W / H can be reliably prevented.

  For example, in the protector 10 of the present embodiment, the wire harness when a tensile force of 50N, 80N, and 100N is applied to the wire harnesses W / H-1 and W / H-2 along the insertion direction X from the outside of the protector 10 Each of the W / H deviation amounts could be suppressed to 90%, 60%, and 33% of the deviation amounts when the deviation preventing ribs 12c, 13-1, and 13g were not provided.

  Further, the first and second band fastening portions 12 and 13 are provided with band-passing tube portions 12e and 13e on the outer surfaces of the side portions 12b and 13b, respectively, and band misalignment prevention ribs 12f and 13c- 2 is provided to prevent displacement of the first and second fastening bands B-1 and B-2. Therefore, even if the wire harnesses W / H-1 and W / H-3 fixed by the first and second fastening bands B-1 and B-2 are pulled in the wire harness insertion direction X, the first and first The movement of the two fastening bands B-1 and B-2 is prevented by the band-passing cylindrical portions 12e and 13e and the band displacement prevention rib, and the positional displacement does not occur. as a result. The wire harnesses W / H-1 and W / H-2 can be positioned and fixed, and displacement in the wire harness insertion direction X can be prevented.

Also in the tape winding part 17, the wire harness W / H-3 wound with the tape is pulled over the rib 17c for preventing displacement. Similarly, on the entrance side, the rib 18c for preventing misalignment is overcome.
Therefore, the dimension management of the wire harness inserted through the protector 10 can be accurately performed, and the length of the wire harness drawn from the protector 10 can be maintained as designed.

FIG. 7 shows a second embodiment.
In the second embodiment, the deviation preventing rib 22c of the first band fastening part 12 is provided in the vertical direction at the protruding end of the side part 12b, and the deviation preventing rib 22g is formed on the inner surface of the bottom part 12a of the band fastening part 12. Is different from the first embodiment in that the wire harness is interspersed in the wire harness insertion direction X and the orthogonal direction Y.

Three pieces of the small piece-shaped ribs 22g are arranged at a predetermined pitch in the wire harness insertion direction X, and two pieces are arranged at a predetermined pitch in a direction Y orthogonal to the insertion direction X. The vertical direction matches the Y direction.
The arrangement pattern is not limited to the arrangement pattern, and for example, as shown in FIGS. 8A, 8B, and 8C, the length direction of the misalignment prevention rib 22g may be inclined in a C shape. Good.

As described above, the rib 22c for preventing misalignment is provided on the inner surface of the protruding end of the side portion 12b of the band fastening portion 12, and the rib 22g for preventing misalignment is provided on the inner surface of the bottom portion 12a of the band fastening portion 12 in the wire harness insertion direction X and the orthogonal direction. Since it is interspersed with Y, a large number of contact portions of the wire harness W / H are formed on the inner surface of the band fastening portion 12 in a wide range, and displacement of the wire harness W / H can be effectively prevented. Further, the insertion space for the wire harness W / H is not significantly narrowed by the deviation preventing rib 22g, and the wire harness W / H can be inserted into the band tightening portion 12 in a stable state and fixed by band tightening. .
Since other configurations and operational effects are the same as those of the first embodiment, the same reference numerals are given and description thereof is omitted.
In addition, this invention is not limited to the said embodiment, The case where the edge part of the length direction of a protector main body is not branched is also included.

It is a schematic perspective view of the protector of 1st Embodiment. It is a schematic perspective view which shows the state which penetrated the wire harness to the said protector and fixed the wire harness in the band clamp | tightening part. It is a principal part enlarged view of the 1st band fastening part of FIG. It is a principal part enlarged view of the 2nd band fastening part of FIG. (A) (B) is a schematic sectional drawing which shows the meandering state of a wire harness. (A) is the principal part enlarged view of the 1st band fastening part of FIG. 4, (B) is the principal part enlarged view of a 2nd band fastening part. (A) is a schematic perspective view of the band fastening part of the protector of 2nd Embodiment, (B) is a schematic sectional drawing which shows the state which the wire harness is contact | abutting to the rib for prevention of a shift | offset | difference. (A)-(C) are top views which show the other arrangement | positioning pattern of the rib for a slip prevention to be scattered on the inner surface of the bottom part of a band fastening part. It is drawing which shows a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Protector 11 Protector body 11a Bottom plate part 11b Side plate part 12 First band fastening part 12a Bottom part 12b Side part 12c L-shaped deviation prevention rib 12e Band through cylinder part 12f Band deviation prevention rib 13 Second band fastening part 13a Bottom part 13b side Portion 13c, 13g Displacement prevention rib 13e Band through tube W / H (W / H-1, W / H-2, W / H-3) Wire harness B-1 First fastening band B-2 Second fastening band

Claims (5)

A protector made of a resin molded product that is inserted through the wire harness,
A band fastening part is provided at the front end of the protector body having the bottom plate part and the both side plate parts in the length direction which becomes the wire harness drawing side,
The band fastening portion has an L-shaped cross section having a bottom portion continuous to the bottom plate portion of the protector body and a side portion projecting from one side in the width direction of the bottom portion, and the inner side of the L-shaped cross section is inserted into the wire harness. As a support portion, a rib for preventing the deviation of the wire harness is projected on the inner surface side of the bottom portion and the side portion, and a band-through tube portion is projected on the outer surface of the side portion,
A configuration in which a fastening band passing through the band-passing tube portion is wound and fixed around an outer surface of the wire harness from an outer surface of the band fastening portion, and the wire harness fastened by the fastening band is pulled out over the misalignment prevention rib. A protector for a wire harness characterized by   The protector for a wire harness according to claim 1, wherein the rib for preventing misalignment of the wire harness is an L-shaped rib that protrudes toward an inner surface side of a projecting end of a bottom part and a side part serving as the wire harness insertion support part.   The rib for preventing the deviation of the wire harness protrudes from the inner surface at the front end of the side portion serving as the wire harness insertion support portion, and is scattered on the inner surface of the bottom portion at intervals in the direction orthogonal to the insertion direction of the wire harness. The protector for wire harnesses of Claim 1 currently projecting.   The protector for wire harnesses of any one of Claim 1 thru | or 3 which has the rib for the band slip prevention protruding in the bottom part of the said band fastening part or / and the outer surface front-end | tip part of a side part. The wire harness is branched and pulled out in different directions. On the draw-out side of the wire harness, the bottom plate portion is branched in the width direction, and the branched one side is used as a band fastening portion and the other side is wound with tape. As a fixed part,
A partition wall for branching the wire harness is projected at the center of the bottom of the band fastening part, and the first band fastening part on one side of the partition projects the bottom plate and projects the outer side of the side plate to the outer edge of the bottom plate. While providing a band tube,
2. The second band fastening portion on the other side of the partition is provided with a hole through which a band passes through the bottom plate and the band-passing tube portion provided on the outer surface of the side plate protruding from the outer edge of the bottom plate. The protector for wire harnesses of any one of 4.

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