JP2003267264A - Harness laying structure for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a harness laying structure for a vehicle capable of increasing a strength and a rigidity, lowering a production cost, easily and surely performing the laying of harness, and facilitating the layout of various types of parts under an instrument panel, particularly at the center part of the vehicle. <P>SOLUTION: The operator's seat side of a steering member 11 supporting a steering column is formed of a large diameter member 111 of generally circular shape in cross section, and the front passenger seat thereof is formed of a small diameter member 112 of generally circular shape opened only on a front side in cross section. The terminal part of the large diameter member 111 on the front passenger seat side is reducibly finished according to the shape of the small diameter member 112 on the passenger seat side and fitted thereto, and the connection part 1122 thereof is welded. The harness 21 is laid down laterally through the inside of the small diameter member 112. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a harness accommodated in a lower portion of an instrument panel of a vehicle and arranged therein, and more particularly to a vehicle harness arrangement structure arranged in a steering member.

[0002]

2. Description of the Related Art Conventionally, a vehicle harness connected to an instrument panel, a meter, an audio, a television, an air conditioner and the like mounted in the vicinity of the instrument panel is arranged along the outer surface of a steering member arranged in the vehicle width direction. And was fixed to the steering member with resin clamps or metal clips.

FIG. 6 is a front perspective view of a harness wiring structure according to a first conventional example. 6, in the steering member 51, the driver seat side large-diameter member 511 and the passenger seat side small-diameter member 512 are substantially in the center of the vehicle driver seat side, and the cross-section of the passenger seat side terminal of the large-diameter member 511 is reduced. After fitting the small-diameter member 512 on the passenger side, the joint 5122 is welded.

A bracket 513 for fixing a steering column (not shown) is welded to the large diameter member, and the steering member 51 is fixed to the side of the vehicle body at the ends of the large diameter member 511 and the small diameter member 512. A bracket 514 for welding is welded.

The front end (Y direction, the same in each figure) of the steering bracket 513 is fixed to the vehicle body by bolts (not shown).

A harness 61 is arranged on the outer surface of the steering member 51, and a main line portion 611 is fixed by a resin clamp (not shown), and is connected to a meter, an audio, a television, an air conditioner device or the like from a predetermined position. The branch line 612 is branched.

FIG. 7 is a front perspective view of a harness wiring structure according to a second conventional example.
No. 1 is disclosed. FIG. 8 is a sectional view of the central portion of FIG. 7 and 8, the steering member 51 has a U-shaped cross section in the front-rear direction, and a vertical wall-shaped reinforcing plate 5121 is welded to the center of the cross section over substantially the entire length in the left-right direction. . The trunk portion 611 of the harness 61 is fixed to the reinforcing plate 5121 by a resin clamp 62, and a branch line 612 connected to various electric devices branches from a predetermined portion of the trunk line 611.

[0008]

However, the navigator, audio,
Since the television, the air conditioner, etc. are mounted and the parts are densely packed, in the vehicle harness wiring structure of the first conventional example, the large-diameter harness 61 is the steering member 51.
Since it is routed on the outer surface of the, it is a major limitation in layout of parts.

In the second conventional vehicle harness wiring structure, a reinforcing plate 5121 is provided in the left and right direction of the steering bar 511/512 having a U-shaped cross section. Since the welded joint is used throughout, the productivity is poor, the manufacturing cost is high, and the cross-sectional shape is U-shaped in the front and rear, and the reinforcing plate 5121 is welded to the central part of the cross-section, so that especially the driver's seat There is a problem in that it is difficult to support the steering column and secure the strength and rigidity required to prevent vibration.

The present invention has been made in view of the above problems, and by examining the shape of the steering member and the wiring method of the harness, the strength and rigidity are high, the manufacturing cost is low, and the wiring of the harness is arranged. It is an object of the present invention to provide a wiring structure for a vehicle harness that is easy and reliable, and facilitates the layout of various parts in the lower portion of the instrument, particularly in the vehicle central portion.

[0011]

In order to achieve the above object, the first invention is a steering member that supports a steering column and is arranged in the vehicle width direction. Is a tubular large-diameter member, the passenger seat side is constituted by a tubular small-diameter member with a part of the side peripheral surface opened, and the passenger-side end of the large-diameter member and the passenger-side small-diameter member are shaped. And a rigid connection with the small-diameter member on the passenger side, and a harness is installed inside the opening of the small-diameter member in the vehicle width direction. It is a structure.

As a result, since the driver's seat side, which supports the steering column and the like, is formed in a large diameter portion, necessary strength and rigidity are secured. The passenger seat, which does not require strength and rigidity as much as the driver's seat, has a smaller diameter to reduce weight, and the harness is routed inside the small-diameter member to secure a gap with surrounding parts. Because
The harness can be easily routed and the layout of various parts can be facilitated.

According to a second aspect of the present invention, in the vehicle harness wiring structure according to the first aspect, the passenger side of the steering member is formed of a small-diameter member having a closed cross section, and is opened over substantially the entire length in the left-right direction. The concave portion is formed, and the harness is arranged along the concave portion in the vehicle width direction.

Since the recess is formed in the small diameter portion of the closed cross section, the vertical section modulus and the second moment of area of the small diameter portion are increased, and the strength and rigidity of the small diameter portion can be improved.

According to a third invention, in the vehicle harness wiring structure according to the first invention, a part of the cross section of the small-diameter member on the passenger side of the steering member is opened, and a curl portion is provided at the open end. It is characterized by being formed.

As a result, the rigidity of the small diameter portion can be improved and the harness can be prevented from being damaged by the edge of the steering member when the harness is routed.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) FIG. 1 is a front perspective view of a harness wiring structure according to a first embodiment of the present invention, and FIG. 2 is a first embodiment of the present invention. FIG. 3 is a rear perspective view of the harness wiring structure according to FIG. 3, and FIG. 3 is a cross-section AA (passenger seat side) view of FIG. 1.

1 to 3, reference numeral 11 denotes a steering member, which is composed of a large-diameter member 111 on the driver's seat side and a small-diameter member 112 on the passenger's seat side.

The large-diameter member 111 is made by cutting a thin steel pipe that has already been manufactured. The end of the passenger seat side is reduced in size so that the inner diameter is approximately the same as the outer diameter of the small-diameter member 112, and the small-diameter member 112 on the passenger seat side. After fitting, the joint 1122 is welded.

A steering bracket 11 for fixing the steering column 12 to the large diameter member 111.
3 is welded, a bracket 114 for fixing the steering member 11 to the vehicle body side is welded to the ends of the large diameter member 111 and the small diameter member 112, and the tip of the steering bracket 113 is fixed to the vehicle body with a bolt ( (Not shown).

The small-diameter member 112 is formed by bending a thin steel plate into a circular cross section and is formed into a tubular shape with a part of the side surface opened. As shown in FIG. 3, an open cross section in which the front side of the vehicle is open is formed and its end is formed. A curl portion 1124 is provided in the.

An instrument stay 115 is attached to a terminal portion of the large-diameter member 111 on the vehicle center side, and a lower terminal of the instrument stay 115 is fixed to a vehicle body floor (not shown) to improve strength and rigidity of the steering member 11. Complement,
In particular, it contributes to preventing vibration of the steering column 12 (Fig. 2).

Reference numeral 21 denotes a harness, which is composed of a trunk line 211, an instrument panel, and a branch line 212 connected to a meter, a navigator, an audio, a television, an air conditioner device and the like mounted in the vicinity.

The main line 211 branches from the harness arranged on the right side of the vehicle body and is arranged on the large diameter member 111, the small diameter member 112 is arranged on the inside of the open section, and the left end is arranged on the door on the left side of the vehicle body. It has been planned.

The main line 211 is fixed to the large-diameter member 111 by a metal clip attached to the surface thereof or by a resin clamp (not shown).
In the small-diameter member 112 part, as shown in FIG. 3, resin-made clips 22 are driven in at a plurality of positions and curl parts 1124 are used to hold the trunk line 211 of the harness inside the small-diameter member 112.

As described above, the large-diameter member 111 having a closed cross section on the driver's side and the front side of the vehicle on the passenger side from the center of the vehicle are open to form a vertically closed cross-section member. -Because it is composed of the small-diameter member 112 with little decrease in rigidity, the strength / rigidity necessary for supporting the steering column is secured, the weight is low and the manufacturing cost is low, and the main trunk line 211 of the harness is provided inside the small-diameter member 112. The wiring of the harness is easy and reliable, and the layout of various parts in the lower portion of the instrument, particularly in the center of the vehicle can be facilitated.

Further, since the curl portion 1124 is provided at the end of the small diameter member 112, it contributes to the improvement of the strength and rigidity of the small diameter member, and the harness is not damaged at the edge when the harness is routed. By driving the resin clip 22 using the curl portion 1124, the trunk line 211 of the harness can be easily held inside the small diameter member 112.

(Second Embodiment) In the second embodiment, a small diameter member 112 having an open cross section in the first embodiment is used.
Is replaced with a substantially circular tubular small diameter member 312,
The other parts are the same as those in the first embodiment, and the same parts are designated by the same reference numerals and the description thereof will be omitted.

FIG. 4 is a sectional view (corresponding to the section AA in FIG. 1) of the passenger seat side of the first example according to the second embodiment.

In FIG. 4, the small-diameter member 312 is made by cutting a ready-made thin-walled steel pipe, and the front side is provided with an arc-shaped concave portion 3121 that opens forward over the entire length of the left and right. The concave portion 3121 has a harness. The main line 211 is routed and clamped and fixed from the outside of the small diameter member 112 by the resin clamp 32.

FIG. 5 is a passenger's seat side sectional view (corresponding to section AA in FIG. 1) of a second example according to the second embodiment.

In FIG. 5, the small-diameter member 412 is formed by bending a thin steel plate, and the front side of the small-diameter member 412 is provided with arcuate recesses 4121 over the entire left and right sides as in the first embodiment. The ends of the thin steel plates are joined at the rear end of the recess 4121. And this recess 4121
The harness main line 211 is routed to the resin clamp 4
2 is clamped and fixed from the outside of the small diameter member 412.

In the first and second examples of the second embodiment, the small-diameter members 312, 412 have circular closed sections, and the recesses 3121, 4121 are provided on the front side surface, and the recesses 3121, 4121 have harnesses. Since the main line 211 is routed, the harness can be routed easily and reliably, and the layout of various parts in the lower portion of the instrument, especially in the center of the vehicle can be facilitated.

Further, it has rigidity equivalent to that having no recessed portion against vertical load, is effective in preventing vibration of the steering column, and has high buckling strength of the steering member, so that a side collision of the vehicle occurs. Function effectively.

[0035]

According to the first aspect of the present invention, the driver member side of the steering member is composed of a large-diameter member having a tubular cross section, and the passenger seat side is composed of a small-diameter member having a partially open side peripheral surface. The passenger seat side end of the diameter member and the passenger seat side small diameter member are formed in conformity with each other, and rigidly connected to the passenger seat side small diameter member, and the harness is provided inside the opening of the small diameter member in the vehicle width direction. Since the wires are routed, the strength and rigidity necessary to support the steering column are secured, the weight is low, the manufacturing cost is low, and the harness main line is routed inside, so the harness routing is It is easy and reliable to facilitate the layout of various parts in the lower part of the instrument, especially in the center of the vehicle.

A second invention is the vehicle harness wiring structure according to the first invention, wherein the passenger seat side of the steering member is formed of a small diameter member having a closed cross section and is opened over substantially the entire length in the left-right direction. Since the concave portion is formed and the harness is arranged along the concave portion in the vehicle width direction, the wiring of the harness is easy and reliable, and the layout of various parts in the lower portion of the instrument, particularly in the central portion of the vehicle is facilitated. can do.

Further, it has rigidity equivalent to that having no concave portion with respect to the vertical load, is effective in preventing vibration of the steering column, and further, the buckling strength of the steering member is high and the side surface of the vehicle is high. It works effectively in the event of a collision.

A third aspect of the invention is a vehicle harness wiring structure according to the first aspect, in which a curl portion is formed at an open end of a cross section of the small diameter member, which contributes to improvement of rigidity of the small diameter member. The harness can be easily held by a clip made of resin or the like by using the curl portion without damaging the harness at the edge when the harness is routed.

[Brief description of drawings]

FIG. 1 is a front perspective view of a harness wiring structure according to a first embodiment of the present invention.

FIG. 2 is a rear perspective view of the harness wiring structure according to the first embodiment of the present invention.

FIG. 3 is a sectional view taken along the line AA (passenger seat side) in FIG.

FIG. 4 is a passenger side sectional view (corresponding to section AA in FIG. 1) of a first example according to the second exemplary embodiment of the present invention.

FIG. 5 is a passenger side sectional view (corresponding to section AA in FIG. 1) of a second example according to the second exemplary embodiment of the present invention.

FIG. 6 is a front perspective view of a harness wiring structure according to a first conventional example.

FIG. 7 is a front perspective view of a harness wiring structure according to a second conventional example.

FIG. 8 is a cross-sectional view of the resin clamp portion of FIG.

[Explanation of symbols]

11, 51: Steering members 111, 511: Large diameter member (driver's seat side) 112, 312, 412, 512: Small diameter member (passenger seat side) 1121, 1122, 3121, 4121: Recessed portion 1122, 5122: Joining portion 5121: Reinforcement plate 1123: Opening portion 1124: Curl portion 113, 513: Bracket (steering) 114, 514: Bracket (terminal) 115, 515: Instrument stay 12: Steering column 21, 61: Harness 211, 611: Trunk line 212, 612: Branch lines 22, 32, 42, 62: Clamp

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) H02G 3/04 H02G 3/04 J 3/30 3/28 F 3/38 3/26 K F term (reference) ) 3D003 AA01 AA05 AA18 BB01 CA05 DA10 3D044 BA01 BA14 BB01 BC07 BC13 BC28 BD13 5G357 DA06 DB03 DC12 DD02 DD05 DD11 DD14 DE03 DE05 5G363 AA16 BA02 BA07 DA12 DC02

Claims (3)

[Claims] 1. A steering member, which supports a steering column and is arranged in a vehicle width direction, comprises a large-diameter member having a tubular cross-section on a driver side of the steering member and a part of a side peripheral surface on a passenger side. Is formed by a tubular small-diameter member having an opening, the passenger-side terminal of the large-diameter member and the passenger-side small-diameter member are molded to have the same shape, and rigidly coupled to the passenger-side small-diameter member, A wiring structure for a vehicle harness, wherein a harness is installed in the opening of the small diameter member in the vehicle width direction. 2. The passenger seat side of the steering member is formed of a small-diameter member having a closed cross section, and a recessed portion that is open over substantially the entire length in the left-right direction is formed. The harness is arranged along the recessed portion in the vehicle width direction. The wiring structure for a vehicle harness according to claim 1, wherein the wiring structure is used. 3. The harness for a vehicle according to claim 1, wherein a part of a cross section of the small-diameter member on the passenger side of the steering member is opened, and a curl portion is formed at the open end. Routing structure.