JPH0329665Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to a support structure for wires, and more specifically, it is a structure for supporting wires such as accelerators and clutches installed in automobiles etc. on a part of the car body. Concerning the structure for.

[Prior art]

In order to transmit the operation of an accelerator, clutch, etc. installed in a car to a desired location, wires are used in which a wire cable is housed in a wire boot. An example of a device that can support these wires on a part of the vehicle body is a wire cable mounting structure described in Japanese Utility Model Application Publication No. 58-50384.

In this method, an outer cap attached to one end of the wire cable has a threaded part and a chamfered part formed along the length, and two nuts screwed into the threaded part and the chamfered part are used to attach the wire cable to the bracket. It is designed to be tightened and fixed to
In particular, the stopper member for preventing rotation is engaged with the chamfered portion and the outer circumferential surface of the rotation prevention nut, and is slidable along the longitudinal direction of the outer cap. In such a mounting structure, since the outer cap is chamfered, the outer cap can be mounted at a fixed angle with respect to the bracket. Therefore, when attaching the outer cap to the bracket, the fit is good and the nut can be easily tightened.

However, when a wire cable for a car's accelerator or clutch is fixed to a bracket, the nut may loosen due to vibrations or shocks while driving, and this can cause the outer cap to easily come off the bracket or cause looseness. It comes with it. As a result, there is a problem in that the accelerator operation etc. cannot be accurately transmitted. Furthermore, if the opening end of the groove in the bracket must be directed downward due to the structure of the mounting portion, there is a problem in that the wire cable may fall off from the bracket simply by loosening the nut.

[Purpose of invention]

The present invention solves the above-mentioned problems in support structures for wires in automobiles, etc., and allows the wire cable to be stably fixed to the bracket, so that even if the tightening nut becomes loose, the wire cable will not fall off the bracket and will remain intact. The purpose of the present invention is to provide a support structure for wires that can be held in this state.

[Structure of the idea]

The features of the wire support structure of the present invention are as follows.

A threaded portion is formed at the outer peripheral end of the wire boot containing the wire cable, and a pair of tightening nuts screwed into this threaded portion is used to tighten and fix the wire boot to the bracket from both sides. A first groove is formed at a predetermined distance from the end, and a second groove, which is wider than the first groove, is formed continuously from the first groove. A washer member is disposed between at least one of the tightening nuts and the bracket,
The washer member is provided with a stepped portion that protrudes toward the bracket and has an outer diameter larger than the groove width of the first groove portion and smaller than the groove width of the second groove portion.

[Effect]

Fit a pair of tightening nuts and a washer member between them at appropriate intervals into the threaded portion of the wire boot, insert the wire boot from the first groove to the second groove of the bracket, and then insert the washer member into the second groove. Fit it into the groove and tighten with nuts on both sides. Since the outer diameter of the step portion of the washer member that protrudes in the bracket direction is formed to be larger than the groove width of the first groove portion, the step portion acts as a retainer against the first groove portion, and the washer member is inserted into the second groove portion. It is held stably, and even if the tightening nut loosens, the wire boot will not come off the bracket or rattle.

〔Example〕

Hereinafter, the present invention will be described in detail based on examples thereof. In the embodiment shown in FIGS. 1a and 1b, a threaded portion 3 is formed at the end of the wire boot 2 in which the wire cable 1 is housed, and a locking means for clamping the bracket 6 at the outer periphery of the threaded portion 3 is provided. 10 is inserted. A pair of tightening nuts 4 and 5 are screwed onto both sides of this locking means 10, and by tightening and fixing with them,
A wire boot 2 is fixed to a bracket 6 from both sides.

The locking means 10 has a washer member disposed between at least one of the tightening nuts 4 and 5 and the bracket 6, and in this example, a pair of metal washer members 7, 8 and an elastic member 9 made of rubber. The washer members 7 and 8 have a circular shape, and have cylindrical stepped portions 7a and 8 protruding toward the bracket 6 at the center thereof.
A is formed, respectively, and the pair of washer members 7 and 8 are arranged so that their stepped portions 7a and 8a face each other with an appropriate gap between them, and a circumferential groove portion formed between the two washers functions as a spacer and a buffer material. Elastic members 9 are arranged in an annular shape. This elastic member 9 has a groove 9a formed on its annular outer periphery, into which the bracket 6 is fitted.

As shown in FIG. 1b, the bracket 6 into which the locking means 10 is fitted has a groove that gradually narrows inward from the end over a predetermined distance.
A first groove portion 6a having a minimum groove width of W1 is formed, followed by a second arc-shaped groove portion 6b having a wider groove width and a maximum groove width of W2, as shown in Fig. 2b. is formed. The bracket 6 is fixed at a predetermined position on a vehicle body component, and supports wires for transmitting the operation of the accelerator, clutch, etc. to a desired location. On the other hand, the outer diameter D (see FIG. 1a) of the step portions 7a and 8a of the locking means 10 is larger than the minimum groove width W1 of the first groove portion 6a and larger than the maximum groove width W2 of the second groove portion 6b. It is formed small. Note that the stepped portions 7a and 8a are not limited to cylindrical shapes;
Although not shown in the drawings, it may have a protrusion shape like a partially cracked cylinder.The key is to maintain a gap larger than the minimum groove width W1 of the first groove part 6a, and
It suffices if it is placed so that it does not protrude from the outside.

Next, the operation of this embodiment will be explained. To attach the wire cable 1 to the bracket 6, first place the elastic member 9 and the washer members 7 and 8 on both sides of the elastic member 9 in the middle of the threaded part 3 provided at the tip of the wire boot 2, leaving an appropriate amount of clearance. ,
Furthermore, a pair of nuts 4 and 5 are placed between them.
Screw them together at appropriate intervals. Next, of the locking means 10 set on the wire cable 1, the groove 9a formed on the outer periphery of the elastic member 9 is fitted into the first groove 6a of the bracket 6, and inserted into the second groove 6b while being aligned with the first groove 6a. do. Elastic member 9
When passing through the first groove 6a, as shown in FIGS. 2a and 2b, both outer sides are compressed by the first groove 6a and contract inward, but the approximately circular second
When it fits into the groove 6b, it returns to an annular shape close to its original shape as shown in FIG. 1b. Then, the both sides of the elastic member 9 that is fitted into the second groove 6b are
A pair of washer members 7, 8 located as shown in
are clamped by advancing them, and then tightened with nuts 4 and 5 on both outer sides. 1st
As shown in Figure a, the stepped portion 7 of the washer members 7, 8
a, 8a is fitted into the center of the elastic member 9 within the second groove 6b of the bracket 6, and its tip is fitted into the second groove 6b of the bracket 6. The bracket 6 is clamped and fixed in the groove 9a of the elastic member 9, and the wire boot 2 is stably fixed to the bracket 6.

In such a fixed state, as described above, since the outer diameter D of the stepped portions 7a and 8a of the washer members 7 and 8 is larger than the minimum groove width W1 of the first groove portion 6a of the bracket 6, the movement in the direction of the arrow 11 is Works as a stopper. Locking means 10 fitted into the second groove 6b
is securely locked in the second groove 6b without slipping out through the first groove 6a. Therefore, even if the nuts 4 and 5 are loosened for some reason, the wire cable 1 will not fall off the bracket 6 and stable support will be maintained.

Furthermore, when the tightening nuts 4 and 5 are tightened,
When the tips of the stepped portions 7a and 8a are in contact with each other, the contact is caused by the washer members 7 and 8.
The tightening limit is reached, and the stepped portions 7a and 8a can function as stoppers. Therefore, by selecting the length of the stepped portion, the tightening strength of the nut can be set.

If such a support structure is used, for example, to support the wire cable 1 of an automobile accelerator or clutch, vibrations and shocks during driving are absorbed by the elastic member 9, and the tightening nuts 4, 5 are
Even if the wire boot 2 becomes loose, the stepped portion of the washer member between at least one of the tightening nuts and the bracket acts as a stopper, and the wire boot 2 will not fall off from the bracket 6. Therefore, while driving, accurate transmission of operations such as the accelerator and clutch is ensured, and safety and responsiveness of operation are ensured. Further, even when the opening end of the first groove 6a of the bracket 6 is provided to face downward due to the structure of the mounting part of the automobile, with such a support structure, the wire cable 1 can be attached to the bracket 6. It will not fall off.

[Effect of idea]

As can be seen from the description of the embodiments above, the present invention has the following features:
A first groove is formed in the bracket at a predetermined distance from the end thereof, a second groove is formed in succession to the first groove and has a groove width larger than the first groove, and the bracket is connected to at least one of the tightening nuts. A washer member is disposed between them, and the washer member has a stepped portion that protrudes toward the bracket and has an outer diameter larger than the groove width of the first groove portion and smaller than the groove width of the second groove portion. When used as a support for a wire cable in a car or a clutch, the wire cable will not fall off the bracket regardless of the angle at which the bracket is installed or even due to vibrations or shocks during driving.

[Brief explanation of drawings]

Figure 1a is a cross-sectional view of the main part of the wire cable fixed to the bracket according to the embodiment of the present invention, Figure 1b is a cross-sectional view taken along the - line, and Figure 2a is the wire cable being installed. A sectional view of the main part, and FIG. 2b is a sectional view taken along the - line. 1... Wire cable, 2... Wire boots,
3... Threaded portion, 4, 5... Nut, 6... Bracket, 6a... First groove, 6b... Second groove,
7, 8... Washer member, 7a, 8a... Step part,
W1, W2...Groove width.

Claims (1)

[Scope of Claim for Utility Model Registration] A structure in which a threaded portion is formed at the outer peripheral end of a wire boot with a wire cable inside, and the wire boot is tightened and fixed to a bracket from both sides by a pair of tightening nuts screwed into the threaded portion. , a first groove is formed in the bracket at a predetermined distance from the end thereof, and a first groove is formed in succession to the first groove.
A second groove portion having a groove width larger than the groove portion is formed, and a washer member is disposed between at least one of the tightening nuts and the bracket, and the washer member has a second groove portion that protrudes in the direction of the bracket and has a second outer diameter. A support structure for wires, characterized in that a stepped portion is provided, the width being larger than the width of one groove portion and smaller than the width of the second groove portion.