JPS594840Y2 - Parking brake cable support structure - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a parking brake cable.

The parking brake cable is provided to transmit the operating force of the operating lever provided on the chassis side to the brake device provided on the suspension side, but depending on how the cable is routed, the parking brake may be activated by the vertical movement of the suspension. The length change Δl of the cable becomes large and causes a problem.

For this reason, conventionally, as shown in Fig. 1, a rubber 01) is wrapped around the outer teeth of the parking brake cable Oa, and this is fixed to the suspension arm with a clip Oc from above, and the length change Δl of the parking brake cable is The bending change of the support part can be absorbed by the elastic force of the rubber ob.

However, when the length of the parking brake cable changes significantly as described above, such means cannot sufficiently absorb the change in the length of the parking brake cable, resulting in severe damage to the parking brake cable.

The present invention was proposed in view of these circumstances, and is a parking brake cable support that absorbs changes in the length and bending of the parking brake cable caused by the vertical movement of the suspension and prevents damage to the parking brake cable. The parking brake cable consists of an inner cable that transmits the operating force to the actuating part, external teeth in which the inner cable is inserted, and a central part through which the parking brake cable is inserted in the axial direction. A grommet made of an elastic material such as rubber, which has a bellows structure on its inner surface and which is squeezed at both ends and is fitted to the parking brake cable, is attached to the suspension arm and is fitted and engaged with the grommet at the central portion. It is characterized by a parking brake cable support structure made of a clip.

One embodiment of the present invention will be explained with reference to the drawings. Fig. 2 is a partial perspective view thereof, Fig. 3 is a partial plan view taken along line III in Fig. 2, and Fig. 4 is a partial plan view taken along line IV-IV in Fig. 3. FIG. 5 is a cross-sectional view taken along line V--■ in FIG. 3.

In the above diagram, a indicates a parking brake cable consisting of an inner cable that transmits the operating force of a handbrake lever (not shown) to the brake device, and external teeth that pass through the inner cable, and b indicates an inner bellows structure with a large diameter in the center. The parking brake cable a is inserted biaxially through rubber grommets whose ends are caulked to a small diameter to prevent mud from entering the inside.

C is a clip that is fitted into the large diameter central part of grommet b) and is used to fix grommet b to lower arm e via pole) d and bracket i, f is the rear axle housing, and g
is a drum brake to which the other end of parking brake cable a is connected.

According to the parking brake cable having such a structure, even if the parking brake cable length changes Δl and bending displacement Δθ occur due to the vertical movement of the lower arm e and drum brake g linked to the movement of the suspension, the parking brake Since cable a is fixed to lower arm e via grommet b, these changes can be sufficiently absorbed by the elastic force of grommet b and the bellows structure of the grommet, so there is no excess in parking brake cable a. No binding force acts,
The durability of the parking brake cable a can be greatly improved, and there is no risk of damage to the grommets b.

In short, according to the present invention, there is provided a parking brake cable consisting of an inner cable that transmits operating force to the actuating part, external teeth into which the inner cable is inserted, and a central inner surface through which the parking brake cable is inserted in the axial direction. a grommet made of an elastic material such as rubber, which has a bellows structure and which is squeezed at both ends and is fitted to the parking brake cable; and a clip which is attached to the suspension arm and which fits and engages the grommet at the central portion. The present invention is industrially extremely useful because it provides a parking brake cable support structure that prevents damage to the parking brake cable.

[Brief explanation of the drawing]

FIG. 1 is a partial side view showing a known parking brake cable installation procedure, FIG. 2 is a partial perspective view showing an embodiment of the present invention, and FIG. 3 is a partial plan view taken along line III in FIG. 2. Figure 4 is a longitudinal cross-sectional view along IVIV in Figure 3;
FIG. 5 is a cross-sectional view taken along line V--■ in FIG. 3. a... Parking brake cable, b... Grommet, C... Clip, d... Bolt, e... Lower arm,
f...Rear axle housing, g...Drum brake, h...Caulking part, i...Bracket.

Claims (1)

[Scope of utility model registration request] A parking brake cable consisting of an inner cable that transmits the operating force to the actuating part and external teeth into which the inner cable is inserted; A parking brake characterized by comprising a grommet made of an elastic material such as rubber that is squeezed and fitted onto the parking brake cable, and a clip that is attached to the suspension arm and that fits and engages the grommet at the central portion. Cable support structure.