JP2663752B2 - Harness protection structure for tilt mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a harness protection structure for a steering device having a tilt mechanism.

[0002]

2. Description of the Related Art As an example of a harness mounting structure in a steering apparatus having a tilt mechanism conventionally used in a forklift or the like, a structure shown in FIGS. 4 and 5 is generally used. That is, the brake shaft 5 is rotatably supported by the brake brackets 3, 3 fixed to the instrument panel 1, and the vicinity of the upper end of the brake pedal arm 7 is fixed at an appropriate position on the brake shaft 5. 7a is a return spring of the brake pedal arm 7, and 7b is a brake pedal.

A support bracket 9 having a substantially U-shape in plan view is fixed to the instrument panel 1 located below the brake shaft 5.
Meter brackets 13, 13 projecting from the lower surface of the meter panel 15 are fixed to both ends of a bracket shaft 11 rotatably supported across both left and right walls of the bracket.

A steering post 19 connected to the steering wheel 17 is extended downward from the meter panel 15 through the rear RR side of the brake shaft 5 and the inside of the support bracket 9, and the steering wheel 17 is tilted. In some cases, the meter panel 15
Can swing in the directions of arrows A and B, that is, in the front-rear direction of the vehicle around the bracket shaft 11 as a rotation center.

[0005] On the other hand, reference numeral 21 denotes a harness derived from the meter panel 15, and one end of the harness 21 on the meter panel 15 side is connected to a front F of the meter panel 15.
The intermediate portion of the harness 21 passes through the rear RR side of the brake shaft 5 and is clamped on the inner wall portion on one side of the support bracket 9.

[0006]

However, in such a conventional example of a harness mounting structure in a steering device having a tilt mechanism, an intermediate portion of the harness 21 passes through the rear RR side of the brake shaft 5 and is supported. Because it is clamped to the inner wall on one side of the bracket 9,
There is a fear that the harness 21 and the brake shaft 5 may interfere with each other. In particular, when the occupant depresses the brake pedal 7b, the rotation of the brake shaft 5 causes the brake shaft 5 and the harness 21 to friction with each other. There were evils. In particular, as shown in FIG. 5, when the steering wheel 17 is tilted in the direction of arrow A, the interference between the brake shaft 5 and the harness 21 becomes remarkable, and the durability of each component is reduced due to friction and the like. Easy to be.

Further, there is a case where the harness 21 is towed to one side by the tilt operation of the steering mechanism.
The durability of the harness 21 itself may be reduced.

In order to cope with the above, for example, as shown in FIG. 6, means for providing a protective cover 23 on the brake shaft 5 where the harness 21 is in contact, or as shown in FIG. Means for wrapping the protection tube 25 around the surface of the harness 21 may be considered.
5 front wheel steering FR
The harness 21 and the protective cover 2
It is inevitable that a friction phenomenon occurs between the protective layer 3 and the protective tube 25, which may cause abnormal noise and damage the surface of the harness 21. As a result, there is a problem that the protection cover 23 or the protection tube 25 may be damaged.

Accordingly, the present invention solves such a problem of the harness mounting structure of the tilt mechanism in the conventional steering apparatus, and eliminates the friction phenomenon caused by the interference between the harness and the brake shaft or the damage of the harness. It is an object of the present invention to provide a harness protection structure capable of preventing the occurrence of a problem and improving the durability of each component.

[0010]

According to the present invention, there is provided a brake shaft which is supported by a brake bracket and is driven by a movement of a brake pedal arm.
A bracket shaft rotatably supported by a support bracket disposed on the lower side of the brake shaft and having a meter bracket fixed to both ends protruding from the lower surface of the meter panel; A steering post extending downward through the section and the support bracket, and derived from the meter panel,
A steering wheel comprising a harness disposed so that an intermediate portion passes through the side portion of the brake shaft, wherein the meter panel is swingable in a front-rear direction about a bracket shaft by a tilt operation of a steering wheel. In the mechanism, an annular guide portion rotatably fitted to the brake shaft is provided on a brake shaft corresponding to a portion where the intermediate portion of the harness contacts, and an intermediate portion of the harness provided integrally with the guide portion. And a clip part for clamping the harness.

[0011]

According to this harness protection structure, even when the harness is pulled to one side by the tilt operation of the steering mechanism, the annular guide portion rotates following the harness, so that the above-described traction is applied to the harness. Is prevented from being applied, and the durability of the harness itself is enhanced.

Further, since the rotation of the brake shaft when the occupant depresses the brake pedal is absorbed by the fitting portion between the guide portion of the harness clip with guide and the brake shaft, mutual friction between the harness and the brake shaft is generated. Does not occur, the generation of abnormal noise due to friction is prevented, and the effect of no damage to the harness is obtained.

[0013]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a harness protection structure for a tilt mechanism according to the present invention;

In the configuration shown in FIGS. 1 and 2, reference numeral 1 denotes an instrument panel, and a brake shaft 5 is rotatably supported by brake brackets 3 and 3 fixed to the instrument panel 1. A portion near the upper end of the brake pedal arm 7 is fixed to an appropriate position of the brake shaft 5. 7a is a return spring of the brake pedal arm 7, and 7b is a brake pedal.

A support bracket 9 having a substantially U-shape in plan view is fixed to the instrument panel 1 located below the brake shaft 5, and straddles both right and left walls of the support bracket 9. The bracket shaft 11 is rotatably supported.

Reference numeral 15 denotes a meter panel, which includes meter brackets 13 protruding from the lower surface of the meter panel 15.
13 are fixed to both ends of the bracket shaft 11.

A steering post 19 connected to the steering wheel 17 extends downward from the meter panel 15 through the rear RR side of the brake shaft 5 and the inside of the support bracket 9, and when the steering wheel 17 is tilted, The meter panel 15 is swingable in the directions of arrows A and B in FIG. 1, that is, in the front-rear direction of the vehicle with the bracket shaft 11 as the center of rotation.

On the other hand, reference numeral 21 denotes a harness led out of the meter panel 15, and one end of the harness 21 on the meter panel 15 side is connected to a front F of the meter panel 15.
It is clamped on the R-side surface. And the harness 2
Brake shaft 5 corresponding to the portion where the intermediate portion of 1 contacts
A harness clip 27 with a guide, which is a characteristic component of the present invention, is attached to the middle portion of the harness 21 by the harness clip 27 with a guide.

As shown in FIG. 3, the above-mentioned harness clip with guide 27 comprises an annular guide portion 27a and a pipe-like clip portion 27b, and the guide portion 27a rotates on the brake shaft 5. Insertion hole 2 which is fitted in the clip portion 27b
The harness 21 is inserted and fixed in 7c.

Then, the harness 21 passes from the front FR side of the meter panel 15 to the rear RR side of the brake shaft 5, and an intermediate portion of the harness 21 is clamped by a clip portion 27b of a harness clip 27 with a guide.

The clip portion 27b constituting the harness clip 27 with guide is not limited to the pipe-like shape shown in the figure, and has a function of clamping and fixing the harness 21 such as a clip piece having a claw-like body. What is necessary is just to have.

According to this harness protection structure, since the harness clip 27 with guide is interposed between the brake shaft 5 and the harness 21, there is no fear that the harness 21 and the brake shaft 5 will interfere with each other. In particular, since the guide portion 27a of the harness clip 27 with a guide is rotatably fitted to the brake shaft 5, even if the harness 21 is pulled to one side by the tilt operation of the steering mechanism, the ring shape is formed. Guide part 27a
Rotates following the harness 21, and as a result, the harness 2
No extra external force due to the traction is applied to 1, and the durability of the harness 21 itself is enhanced.

Further, when the occupant depresses the brake pedal 7b, the rotation of the brake shaft 5 is controlled by the guide portion 27a.
Is absorbed by the fitting portion between the brake shaft 5 and
Mutual friction does not occur between the harness 21 and the brake shaft 5, thereby preventing generation of abnormal noise and preventing damage to the harness 21 due to friction, thereby increasing the durability of each component.

[0024]

As described above in detail, according to the harness protection structure of the tilt mechanism according to the present invention, the following functions and effects are provided.

That is, since the harness clip with guide is interposed between the brake shaft and the harness, there is no fear that the harness and the brake shaft interfere with each other.
In particular, since the rotation of the brake shaft when the occupant depresses the brake pedal is absorbed by the fitting portion between the guide portion of the harness clip with guide and the brake shaft,
There is no mutual friction between the harness and the brake shaft, the generation of abnormal noise due to the friction is prevented, and the effect that the harness itself is not damaged is obtained.

Further, even when the harness is pulled to one side by the tilt operation of the steering mechanism, the annular guide portion rotates following the harness, and the extra external force due to the above-mentioned traction is applied to the harness. It is no longer added, and the durability of the harness itself can be increased.

[Brief description of the drawings]

FIG. 1 is an essential part perspective view showing one embodiment of a harness protection structure according to the present invention.

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a front view showing an example of the shape of a harness clip with guide used in the present embodiment.

FIG. 4 is an essential part perspective view showing an example of a conventional tilt mechanism.

FIG. 5 is a side view of FIG. 4;

FIG. 6 is a perspective view of an essential part showing an example of a conventional harness protection structure.

FIG. 7 is an essential part perspective view showing another conventional harness protection structure example.

[Description of Signs] 1 ... Instrument panel, 3 ... Brake bracket, 5 ... Brake shaft, 7 ... Brake pedal arm, 9 ... Support bracket, 11 ... Bracket shaft,
13 ... meter bracket, 15 ... meter panel, 17 ...
Steering wheel, 19 ... Steering post, 2
1: Harness, 27: Harness clip with guide, 2
7a: guide portion, 27b: clip portion, 27c: insertion hole.

Claims (1)

(57) [Claims] A brake shaft pivotally supported by a brake bracket and driven by movement of a brake pedal arm;
A bracket shaft rotatably supported by a support bracket disposed below the brake shaft and having a meter bracket fixed to both ends protruding from the lower surface of the meter panel; and a side of the brake shaft from the meter panel. A steering post extending downward through the section and the support bracket, and derived from the meter panel,
A steering wheel comprising a harness disposed so that an intermediate portion passes through the side portion of the brake shaft, wherein the meter panel is swingable in a front-rear direction about a bracket shaft by a tilt operation of a steering wheel. In the mechanism, an annular guide portion rotatably fitted to the brake shaft is provided on a brake shaft corresponding to a portion where the intermediate portion of the harness contacts, and an intermediate portion of the harness provided integrally with the guide portion. A harness protection structure for a tilt mechanism, wherein a harness clip with a guide constituted by a clip portion for clamping the harness is attached.