JP2018107939A - Protector structure for linear component - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a protector structure for a linear component which prevents an excessive load caused by a linear component (harness) from being applied to a protector by fixing the linear component (harness) to the protector in a location where rigidity with respect to twisting is high.SOLUTION: In a protector structure for fixing a linear component to a fixed part 1, a pair of vehicle body fixing parts 73 and 74 extending along the fixed part 1 in a direction that the vehicle body fixing parts are separated from each other from both sides while holding a linear component holding part therebetween is provided while being displaced in a length direction in a protector body 71 that fixes a linear component 6. The protector body 71 is fixed by fixing the vehicle body fixing parts 73 and 74 to the fixed part 1, and the linear component 6 is fixed to the protector body 71 on a line Y that connects the vehicle body fixing parts 73 and 74 with each other.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a protector structure for a linear part such as a wire harness routed in a vehicle.

  Conventionally, as a method of wiring a harness such as a wire harness for transmitting a power source or a signal to a narrow space of a vehicle, a route is generally regulated by a protector made of a hard resin. For example, as a method for fixing the electric wire to the protector, a binding band is often used. Further, as disclosed in Patent Document 1, ribs are added in the protector to further restrict the electric wire, thereby improving the rigidity of the protector.

JP 2016-46942 A

  However, when a strong electric wire such as a thick harness is housed in the protector, there is a problem that the protector is deformed due to insufficient rigidity of the protector.

  The present invention fixes a linear part (harness) to a protector at a place where rigidity against twisting is high, and therefore provides a protector structure for a linear part in which an extra load due to the linear part (harness) is not applied to the protector. With the goal.

  In order to solve the above-mentioned problems, the present invention provides a protector structure for fixing a linear part to a fixed part, in a direction in which the linear part holding part is sandwiched by a protector main body for fixing the linear part and both sides are separated from each other. A pair of vehicle body fixing portions extending along the fixed portion are provided by being shifted in the longitudinal direction, the vehicle body fixing portions are fixed to the fixed portion, and the protector body is fixed. The parts are fixed to the protector main body on a line connecting the vehicle body fixing portions.

  According to the protector structure for a linear part of the present invention, since the fixing portion of the harness and the protector is set on a line connecting the vehicle body fixing portions that fix the protector body to the vehicle body, the rigidity against torsion is at other positions. And the protector is more difficult to deform.

It is a conceptual diagram of the vehicle body lower surface which shows the protector structure of the linear component of this invention. FIG. 2 is a partially enlarged perspective view of FIG. 1. FIG. 2 is a partially enlarged perspective view showing a protector with the cover of FIG. 1 removed. FIG. 4 is a partially enlarged view of FIG. 3. It is the perspective view which looked at the protector of FIG. 3 from diagonally upward. The protector of FIG. 5 is shown, (a) is a front view, (b) is a bottom view, (c) is a left side view. It is the sectional view on the AA line of Fig.6 (a). It is the BB sectional view taken on the line of FIG.6 (b).

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings of FIGS.
As shown in FIG. 1, a floor tunnel 2 is provided on the lower surface of the vehicle body floor 1 in the longitudinal direction of the vehicle body at the center in the vehicle width direction, and front floor panels 3 are disposed on both sides of the floor tunnel 2. Yes. A rear floor panel 4 is provided behind the front floor panel 3.
A pair of side members 5 are provided on the left and right sides of the lower surface of the vehicle body floor 1, and between the side member 5 on one side and the floor tunnel 2, power is supplied or signals are transmitted to various equipment. A wire harness 6 in which cables for performing the operation are bundled is routed.

In this embodiment, the adopted vehicle relates to a vehicle in which a lithium ion battery for idling stop is arranged on the passenger seat in the passenger cabin (via a bracket), and through a hole provided in the floor panel 3, In this structure, a lithium ion battery in the vehicle interior and an electrical component outside the vehicle are connected by a wire harness (electric wire) 6. This wire harness 6 is thicker and harder than a normal wire harness.
When passing a harness through a hole in a factory, it is necessary to bend a thick and hard harness. In order to secure this bending allowance, the end of the harness needs to be a certain length away from the protector. (Finally, cover from below with a cover of another part so that the harness is not exposed.)
The straight portion connecting the two places fixed to the vehicle body on both sides of the harness (left and right) has high rigidity against torsion. At the intersection (near) of the straight line and the harness, the harness and the protector are fixed with a binding band. Since it is fixed at a portion with high rigidity, it is possible to prevent the protector from being deformed when the harness is bent.

2 to 8 show the structure of a resin protector 7 for routing the wire harness 6.
The protector 7 is hinge-coupled to a semicircular main body (protector main body) 71 having a predetermined length and a central portion of the main body 71 and covers the central portion of the main body 71 in the longitudinal direction. A rotatable lid portion 72, a first vehicle body fixing arm portion 73 extending outward to the other side of the central portion of the main body portion 71 opposite to the lid portion 72, and the wire harness 6 A second vehicle body fixing arm portion 74 extending in a diagonally forward direction on the opposite side of the vehicle body fixing arm portion 73 is provided at the distal end portion of the body portion 71 of the protector 7 in the routing direction. The vehicle body fixing arm 73 is formed with a positioning projection 73a (see FIG. 5).

On both side flange portions 2 a of the floor tunnel 2, a closed cross-sectional portion 2 b provided between the front floor panel 3 is provided. A positioning projection 73a of the vehicle body fixing arm 73 is engaged and assembled with an engagement recess (not shown) provided in the upper panel 2c of the closed cross section 2b.
Next to the vehicle body fixing arm portion 73, an attachment portion 75 having a length about half that of the vehicle body fixing arm portion 73 is extended and provided. The mounting portion 75 is formed with a mounting hole 75 a for fastening with a pin 76 to the flange portion 2 a of the floor tunnel 2. (See FIGS. 3 and 5). The second vehicle body fixing arm portion 74 is formed with an attachment hole 74 a for attachment to the floor panel 3, and is attached to the seat surface portion 3 a of the floor panel 3 via a screw 77.

  As shown in FIG. 5, the wire harness 6 is routed inside the main body 71 of the protector 7, and the binding band 8 passed through openings 71 a and 71 b provided in the front position of the main body 71. Are united through. As shown in FIG. 6A, the binding band 8 is positioned between the wiring direction X of the wire harness 6 and the line Y connecting the first vehicle body fixing arm portion 73 and the second vehicle body fixing arm portion 74. The first vehicle body fixing arm portion 73 and the second vehicle body fixing arm portion 74 are connected on a continuous surface passing through the mounting portion 75.

  The rear end portion of the wire harness 6 is once bent downward and then bent upward, and inserted through the mounting hole 31 formed in the floor panel 3 and above the floor panel 3 to be connected to the power source of the lithium ion battery. Has been. A guide pipe 32, which serves as a guide for the wire harness 6, is supported through the mounting hole 31 through the mounting hole 31. The guide pipe 32 has a notch 32a formed in the front surface on the wire harness 6 side, and the wire harness 6 is drawn out above the floor panel along the inside of the guide pipe 32 through the notch 32. Has been. The tip of the wire harness 6 is connected to a lithium ion battery for idling stop that is routed on the passenger seat side in the passenger compartment and attached via a bracket. A bent portion of the wire harness 6 is covered with a cover 9 so as not to be exposed to the outside.

According to the above configuration, the wire harness 6 that has been routed on the lower surface of the front floor panel 3 is pulled out through the protector 7, bent once downward, bent upward at an acute angle, and cut out from the notch 32a. The wire harness 6 is pulled out above the front floor panel 3 along the inner wall surface inside the guide pipe 32. At this time, in the protector 7, the bundle of the wire harness 6 is bound and fixed by the binding band 8 on the line connecting the first vehicle body fixing arm portion 73 and the second vehicle body fixing arm portion 74.
Thus, since the position of the binding band 8 is provided on the line connecting the first vehicle body fixing arm portion 73 and the second vehicle body fixing arm portion 74, rigidity against torsion is ensured. Even if twisting occurs due to the bent portion 6, sufficient strength can be obtained. Since the first vehicle body fixing arm portion 73 and the second vehicle body fixing arm portion 74 are connected by a continuous surface, the protector 7 can be prevented from being deformed by the strength of the thick wire harness 6.

As described above, according to the present invention, the fixed part is arranged in a direction away from each other from both sides of the linear part holding part between the body part 71 of the protector 7 that fixes the wire harness 6 as a linear part. A first vehicle body fixing arm portion 73 and a second vehicle body fixing arm portion 74 which are a pair of vehicle body fixing portions extending along the front floor panel 3 are shifted in the longitudinal direction. The first vehicle body fixing arm portion 73 and the second vehicle body fixing arm portion 74 are fixed to the front floor panel 3 to fix the main body portion 71 of the protector 7. Since the wire harness 6 is fixed to the main body 71 of the protector 7 on a line connecting the first vehicle fixing arm 73 and the second vehicle fixing arm 74 which are vehicle fixing parts, rigidity against torsion is provided. Is higher than other positions, and the protector 7 is more difficult to deform.
In addition, the direction in which the wire harness 6 that is the linear part extends and the direction connecting the first vehicle body fixing arm portion 73 and the second vehicle body fixing arm portion 74 cross each other at an acute angle. The distance between the two fixing portions can be secured, and the fixing portion between the protector 7 and the floor panel 3 of the fixed portion is stabilized.

In the range where the vehicle body fixing portions are connected to each other in a straight line, an attachment portion 75 as an extending portion that connects the vehicle body fixing portions with each other is provided on the main body portion 71 of the protector 7. Can be secured.
Further, since the vehicle body fixing portion is fixed to the closed cross-sectional portion at the lower part of the floor tunnel, which is a strength improving portion of the floor panel which is a fixed portion, and the seat surface portion formed on the floor panel, It can be firmly fixed.

  In addition, although the said embodiment demonstrated the case where the wire harness 6 was bundled with the binding band 8, if it is a linear member and can be applied with respect to what kind of member and it will bundle, It is not limited to the binding band 8. Moreover, although the wire harness 6 used for the connection with the lithium ion battery for idling stop was demonstrated, it is used not only for the lithium ion battery for idling stop, but also for the connection of other power sources or signal transmission harnesses. Can do. In addition, it goes without saying that the present invention can be appropriately modified and implemented within the scope not changing the technical scope of the present invention.

1 Body floor (fixed part)
2 Floor Tunnel 3 Front Floor Panel 31 Mounting Hole 32 Guide Pipe 32a Notch 4 Rear Floor Panel 5 Side Member 6 Wire Harness (Linear Part)
7 Protector 71 Body (Protector body)
71a, 71b Opening portion 72 Lid portion 73 First vehicle body fixing arm portion (vehicle body fixing portion)
74 Second body fixing arm part (body fixing part)
75 Mounting part 76 Pin 8 Binding band 9 Cover

Claims (4)

  In the protector structure for fixing the linear part to the fixed part, the linear part holding part is sandwiched by the protector main body for fixing the linear part, and the linear part is extended along the fixed part in a direction away from each other. The pair of vehicle body fixing portions are shifted in the longitudinal direction, the vehicle body fixing portions are fixed to the fixed portions, and the protector main body is fixed, and the linear parts are arranged on the line connecting the vehicle body fixing portions to each other. A protector structure for linear parts, which is fixed to the protector body.   The protector structure for a linear part according to claim 1, wherein a direction in which the linear part is extended and a direction in which the vehicle body fixing parts are connected to each other intersect at an acute angle.   The protector for a linear part according to claim 1, wherein an extension portion for connecting the vehicle body fixing portions with each other in a plane is provided in a range connecting the vehicle body fixing portions with each other in a straight line. Construction.   The protector structure for a linear part according to claim 1, wherein the vehicle body fixing portion is fixed to a strength improving portion of the fixed portion.

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