JP2015044478A - Fixing structure of wire harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent positional deviation of a wire harness by increasing contact points between a holding part and the wire harness.SOLUTION: The present invention provides fixing structure of a wire harness for fixing the wire harness at a holding part with structure projecting from a structure constituting a vehicle. The holding part comprises; a first member which does not deform even when the wire harness is attached and detached; and a second member which deforms when the wire harness is attached and detached. A free end side of the second member is provided with a plurality of pawl-shaped projected marginal parts which contact the wire harness, and a fixing end side of the first member is provided with a rib which contacts the wire harness in completion of attachment of the wire harness in the holding part.

Description

  The present invention relates to a wire harness fixing structure, and more particularly to a wire harness fixing structure in which a wire harness is fixed by a holding portion formed of two members.

As a fixing structure of a wire harness connected to an electrical component mounted on a vehicle, there are those shown in FIGS. In FIG. 5, the fixing structure of the wire harness 101 is provided with a holding portion 103 having a structure protruding in a projecting manner from the structure 102 constituting the vehicle. The holding unit 103 includes a first member 104 that does not deform even when the wire harness 101 is attached or detached, and a second member 105 that elastically deforms the wire harness 101 when attached or detached.
A gap 106 for inserting the wire harness 1 is formed between the free end of the first member 4 and the free end of the second member 5. On the free end side of the second member 105, there is provided a claw-shaped protruding edge portion 107 that comes into contact with the outer periphery of the wire harness 101 when the wire harness 101 is completely installed in the holding portion 102.
When the wire harness 101 is inserted through the gap 106 between the free end of the first member 104 and the free end of the second member 105 when the wire harness 101 is fixed, the wire harness 101 is fixed as shown in FIG. As shown, the wire harness 101 pushes the claw-shaped protruding edge 107 of the second member 105 to bend the second member 105 away from the first member 104 from the original position.
When the wire harness 101 is inserted into the structure 102 side beyond the protruding edge portion 107, the second member 105 is restored to its original position and the claw-shaped protruding edge portion 107 contacts the outer periphery of the wire harness 101. Thereby, the wire harness 101 is hold | maintained between the 1st member 104 and the 2nd member 105, and fixation in the holding | maintenance part 103 is completed.

  As such a wire harness fixing structure, Japanese Patent Application Laid-Open No. 2002-212335 discloses a synthetic resin substrate portion, a holding portion capable of fixing the substrate portion to the outer periphery of the wire harness, and a protruding portion from the substrate portion. Further, a structure is disclosed in which a holding tool is provided that includes a locking piece capable of holding a lattice-like rib piece of a vehicle body between the board portion and the board portion.

Japanese Patent Laid-Open No. 2002-212335

Incidentally, in the conventional wire harness fixing structure, as shown in FIG. 6, when the wire harness 101 is inserted into the holding portion 103, the second member 105 needs to be bent once (bending amount B <b> 1).
However, when the protruding length of the second member 105 from the structure 102 is short, in order to bend the second member 105 by the bending amount B1 necessary for the insertion of the wire harness 101, the second member 105 is greatly deformed ( Therefore, there is a problem that the insertion force of the wire harness 101 is increased.

Further, in the conventional wire harness fixing structure, after the wire harness 101 is fixed, the protruding portion 107 of the second member 105 comes into contact with the outer periphery of the wire harness 101 as shown in FIG. The position is prevented from shifting in the extending direction.
However, since there are few places (four places shown by (circle) in FIG. 7) where the protrusion 107 of the 2nd member 105 contacts the outer periphery of the wire harness 101, there exists a possibility that the wire harness 101 may shift in the extending direction. .

  An object of the present invention is to prevent the positional deviation of the wire harness by increasing the contact points between the holding portion and the wire harness.

  The present invention is a wire harness fixing structure in which a wire harness is fixed by a holding portion having a structure protruding in a projecting manner from a structure constituting a vehicle, and the holding portion is deformed even when the wire harness is attached or detached. A plurality of claw-shaped protrusions that contact the wire harness on the free end side of the second member when the wire harness is completely installed in the holding portion. And a rib that contacts the wire harness is provided on the fixed end side of the first member.

The present invention provides a plurality of claw-shaped projecting edge portions that contact the wire harness at the free end side of the second member when the wire harness is completely installed in the holding portion, and a rib that contacts the wire harness is provided in the first member. By providing on the fixed end side, the contact points between the holding portion and the wire harness can be increased.
Thereby, this invention can prevent that a wire harness shifts in the extending direction.

FIG. 1 is a perspective view of a wire harness fixing structure. (Example) 2 is a cross-sectional view of the holding portion taken along line AA in FIG. (Example) FIG. 3 is a cross-sectional view of the holding portion when the wire harness is inserted. (Example) FIG. 4 is a front view of the holding portion taken along arrow B in FIG. (Conventional example) FIG. 5 is a cross-sectional view of the holding portion of the wire harness fixing structure. (Conventional example) FIG. 6 is a cross-sectional view of the holding portion when the wire harness is inserted. (Conventional example) FIG. 7 is a front view of the holding portion taken along arrow C in FIG. (Conventional example)

  Embodiments of the present invention will be described below with reference to the drawings.

1 to 4 show an embodiment of the present invention. In FIG. 1, the fixing structure of the wire harness 1 is provided with a holding portion 3 having a structure protruding in a projecting manner from a structure 2 constituting the vehicle. The holding part 3 includes a first member 4 that does not deform even when the wire harness 1 is attached or detached, and a second member 5 that elastically deforms the wire harness 1 when attached or detached.
The first member 4 is formed in a substantially square plate shape. The second member 5 is formed in a substantially square plate shape that is slightly smaller than the first member 4. The 1st member 4 and the 2nd member 5 are arrange | positioned so that it may mutually oppose in parallel, each one end side is fixed to the structure 2, it is set as a fixed end, and each other end side is the direction away from the structure 2. The free end is projected. A gap 6 for inserting the wire harness 1 is formed between the free end of the first member 4 and the free end of the second member 5.
On the free end side of the second member 5, as shown in FIGS. 2 and 4, a plurality of claw-shaped protruding edges 7 are provided on the inner side facing the first member 4. Two protruding edges 7 are provided, one at each end in the width direction of the second member 5. The protruding portion 7 is formed in a protruding shape that protrudes toward the first member 4, and is arranged so that the longitudinal direction of the protruding shape is parallel to the extending direction of the wire harness 1. The protruding edge portion 7 comes into contact with the outer periphery of the wire harness 1 when the wire harness 1 is completely installed in the holding portion 2.
On the fixed end side of the first member 4, a rib 8 that contacts the wire harness 1 is provided on the inner side facing the second member 5. One rib 8 is provided at the center in the width direction of the first member 4. The rib 8 is formed in a square plate shape that protrudes from the fixed end along the structure 2 toward the second member 5 by a height H1 and protrudes from the fixed end side toward the free end side by a length L1. . The ribs 8 are disposed so that the protruding direction intersects with the extending direction of the wire harness 1, and are positioned between the two protruding edges 7 in the front view, and two in the radial direction of the wire harness 1. It is arrange | positioned so that the protruding edge part 7 may be opposed. The rib 8 comes into contact with the outer periphery of the wire harness 1 when the wire harness 1 is completely installed in the holding portion 2.
The holding portion 3 is provided with a rib 8 having a length L1 protruding from the first member 4. Thus, the first member 4 extends by a length L1 in the longitudinal direction. The rib is provided on the fixed end side of the extended first member 4. The second member 5 extends in the longitudinal direction by a length L1 corresponding to the length L1 of the rib 8 provided on the first member 4. Accordingly, the second member 5 has a longer protruding length than the conventional first member shown in FIGS. The plurality of claw-shaped protruding edges 7 are provided on the free end side of the extended second member 5. The rib 8 of the first member 4 and the projecting edge portion 7 of the second member 5 are disposed so as to contact the outer periphery facing in the radial direction of the wire harness 1.

In the fixing structure of the wire harness 1, the wire harness 1 is inserted from the gap 6 between the free end of the first member 4 and the free end of the second member 5 when the wire harness 1 is fixed. As shown in FIG. 3, the wire harness 1 inserted into the gap 6 pushes the claw-shaped projecting edge portion 7 of the second member 5 to move the second member 5 away from the first member 4 from the original position. Bend.
The second member 5 to be bent has a longer protruding length than the conventional one. When the protruding length of the second member 5 is long, the deformation (angle θ2) of the second member 105 required to bend the second member 5 by the bending amount B1 necessary for inserting the wire harness 1 is conventionally ( The angle can be smaller than the angle θ1) in FIG. 6 (θ2 <θ1). Therefore, the fixing structure of the wire harness 1 can reduce the insertion force of the wire harness 101, improve the assembly workability of the wire harness 1, and prevent the first member 5 from being damaged during the assembly. Can do.
Further, as shown in FIG. 2, when the wire harness 1 is inserted into the structure 2 side beyond the projecting edge portion 7 of the second member 5 as shown in FIG. At the same time, the claw-shaped protruding edge portion 7 is brought into contact with the outer periphery of the wire harness 1 while the rectangular plate-shaped rib 8 is brought into contact with the outer periphery of the wire harness 1.
Thereby, the wire harness 1 is held between the first member 4 and the second member 5 by the plurality of protruding edge portions 7 and the ribs 8, and the fixing in the holding portion 3 is completed.
In the fixing structure of the wire harness 1, after fixing the wire harness 1, as shown in FIG. 4, the protruding edge portion 7 of the second member 5 contacts the outer periphery of the wire harness 1 and the rib 8 of the first member 4 There are more locations where the protrusion 7 and the rib 8 are in contact with the outer periphery of the wire harness 1 (six locations indicated by circles in FIG. 4) than before.
Thus, the fixing structure of the wire harness 1 can increase the contact points between the holding unit 3 and the wire harness 1. Thereby, this fixing structure of the wire harness 1 can prevent the wire harness 1 from being displaced in the extending direction.

  The present invention can prevent positional deviation of the wire harness by increasing the number of contact points between the holding portion and the wire harness, and can be applied not only to the wire harness but also to a fixing structure of a cord-like body.

DESCRIPTION OF SYMBOLS 1 Wire harness 2 Structure 3 Holding part 4 1st member 5 2nd member 6 Crevice 7 Projection edge part 8 Rib

Claims (1)

  A wire harness fixing structure for fixing a wire harness with a holding portion having a structure protruding in a projecting manner from a structure constituting a vehicle, wherein the holding portion is not deformed even when the wire harness is attached or detached. A plurality of claw-shaped projecting edges that come into contact with the wire harness are provided on the free end side of the second member when the wire harness is completely installed in the holding portion. A fixing structure of a wire harness, wherein a rib that contacts the wire harness is provided on a fixed end side of the first member.

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