JPS6245945Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of a cable guide structure in a clutch pedal of an automobile.

An automobile clutch is designed to operate a clutch device interposed between the transmission and the engine by depressing the clutch pedal inside the vehicle, and the movement of the clutch pedal is normally controlled by an outer cable and an inner cable. It is transmitted to the clutch device by a double cable consisting of: For example, as shown in Fig. 1, one end of the outer cable a is fixed to the pedal bracket 1, etc., and one end of the inner cable b is connected to the clutch pedal. It is configured by being fixed to 2. By the way, in such a connection structure, when the clutch pedal 2 is depressed by a certain amount, the relative axial movement amount of the inner cable b and the outer cable a is made to be as large as possible. In order to keep the pulling direction of the inner cable b constant in the vicinity of the opening at one end, the upper end of the pedal arm 2a of the clutch pedal 2 is connected to the outer An arcuate guide surface 4 whose tangent is the central axis of cable a.
It is common to install a cable guide 5 having a diameter.

Cable guide 5 of such clutch cable
Conventionally, as shown in FIG. 5, a cylindrical portion 7 to be fitted around the outer periphery of a boss 6 provided on a pedal arm 2a of a clutch pedal 7, and a cylindrical portion 7 extending radially outward from this cylindrical portion 7, It is a large type that is integrally formed with a guide part 8 having a guide surface 4 like that shown in FIG.
It requires a large amount of material and is uneconomical in terms of cost, and in its assembly, after the cylindrical portion 7 is fitted onto the boss 6, a screw is inserted through a horizontal hole 9 provided in an appropriate portion of the cable guide 5. 10 into a screw hole 11 provided in the pedal body 2, it is necessary to take measures to prevent rotation, which results in a problem that the assembly work becomes complicated.

The object of the present invention is to solve the above-mentioned problems of the cable guide of the clutch cable in the conventional clutch pedal.

The present invention takes the following technical measures to achieve the above objective.

That is, a clutch cable consisting of an outer cable and an inner cable inserted into the outer cable so as to be movable in the axial direction is provided with an end of the inner cable exposed and extending from an opening at one end of the outer cable connected to the middle part of the pedal arm. In a clutch pedal that is connected by fastening to a provided cable fastening part, an ear piece is provided at the upper end of the pedal arm, and a part of the inner cable exposed from the outer cable is slidably guided. The inner cable includes a guide surface that keeps the axial direction of the inner cable substantially constant in a predetermined direction in the vicinity of the opening at one end, and a fitting part into which the lug is fitted, and the fitting part is fitted into the lug, and the fitting part is fitted into the lug. A guide block is provided which is attached to the clutch pedal by screwing the clutch pedal.

By doing so, the following effects occur.

That is, since the guide block does not have a boss portion unlike the conventional example and is formed in a small size, materials can be saved and it is advantageous in terms of cost. For assembly, it is only necessary to fit the fitting portion of the guide block into the lug provided on the clutch pedal and then fix it using screws, which simplifies the work and also contributes to cost reduction. In addition, in the conventional example, the clutch pedal had to be removed from the pedal shaft when removing the cable guide, but in the present invention, only the cable guide can be easily removed while the clutch pedal is still attached to the pedal shaft. This is very convenient in terms of maintenance work.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings, in which the same members as those described in the description of the prior art are designated by the same reference numerals.

The clutch pedal 2 is attached together with a brake pedal 13 to a pedal bracket 1 fixed to a dash panel 12 or the like. The pedal bracket 1 has a substantially U-shaped cross section, and a cylindrical shaft 15 serving as a pedal shaft is fixed to the pedal bracket 1 so as to pass through between two opposing walls 14, 14. A rotating shaft 16 is inserted into the cylindrical shaft 15. Brake pedal 13 on the right end of
By fixing an arm 18 for driving a brake booster 17 to the left end, the movement of the brake pedal 13 on the right side of the pedal bracket 1 is transmitted to the brake booster on the left side of the pedal bracket 1. The clutch pedal 2 includes a pedal arm 2 located between the arm 18 of the cylindrical shaft 15 and the pedal bracket 1.
It is rotatably supported by loosely fitting a boss 6 provided at a. Reference numeral 19 denotes a torsion spring for applying restoring rotational force to the clutch pedal 2.

As explained before, the movement of the clutch pedal 2 is caused by the outer cable a and the inner cable b.
This is converted into a relative axial reciprocating motion of the engine, which drives a clutch device (not shown) to connect and disengage the engine (not shown) and transmission (not shown). In the illustrated example, as clearly shown in FIG.
0, while the end of the outer cable b is fixed to a cable bracket 21 provided on the pedal bracket 1, and when the clutch pedal 2 is depressed,
Inner cable b is pulled out from outer cable a, and relative movement is given to both cables a and b. In addition, the clutch pedal 2 is designed to increase the relative movement between the two cables a and b as much as possible, and to keep the direction in which the inner cable b is pulled out from the outer cable a constant so that no unreasonable force is applied to the cable. , a cable guide is provided. In the present invention, this cable guide is constructed from a small guide block 5, which will be explained below, in order to reduce costs and facilitate assembly work.

The guide block 5 of the present invention is preferably an extremely small one molded from resin or the like, and when the inner cable b comes into contact with the guide block 5 and the clutch pedal 2 is depressed in the direction of the arrow in FIG. It has a guide surface 22 formed so as to wrap around it. In order to keep the pulling direction of the inner cable b constant at all times, this guide surface 22 should be made into a circular arc surface with the central axis of the outer cable a as a tangent line and centered on the axis of the pedal shaft when assembled. most preferred. In addition, this guide surface 22 includes, for example, an inner cable b.
It is preferable to provide holding pieces 23, 23 that protrude to sandwich the inner cable b and prevent the inner cable b from falling off the guide surface 22.

This guide block 5 is connected to the clutch pedal 2.
The clutch pedal 2 is attached to the clutch pedal 2 by fitting the fitting part 25 provided on the cable guide 5 into the lug 24 provided at the base of the cable guide 5.

In the illustrated example, as shown in FIG. 4, the lug 24 is formed into a rectangular shape, and the fitting portion 25 is fitted with the rectangular lug 24 on one side of the guide block 5. A rectangular groove is formed. In this way, the guide block 5 can be attached to the clutch pedal 2 without wobbling. Incidentally, a screw 26 is used to fix the guide block 5 to the ear piece 24. Further, the specific shapes of the lug 24 and the fitting portion 25 that fits therein are not limited to the illustrated example and can be modified in various ways. For example, the fitting portion 25 may not be in the shape of a groove as shown in the illustrated example, but may be in the form of a hole that receives the entire ear piece 24 so as to cover it and hide it.

As explained above, the cable guide structure of the clutch pedal according to the present invention is an excellent invention that can save material costs and simplify the assembly work compared to the conventional example. In particular, if you wanted to replace only the cable guide, the conventional model had a cylindrical part that was inserted into the pedal shaft, so it was necessary to disassemble the pedal shaft and the pedals supported by it. In this invention, only the cable guide can be easily removed from the ear piece, which greatly improves the work.

[Brief explanation of the drawing]

1 to 4 show embodiments of the present invention,
FIG. 1 is a perspective view showing a part of the mounting structure for pedals, FIG. 2 is a partial cross-sectional plan view showing the mounting structure for pedals, and FIG. 3 is a perspective view showing the main parts.
FIG. 4 is an exploded perspective view showing essential parts, and FIG. 5 is an exploded perspective view showing a conventional example. 2...Clutch pedal, 2a...Pedal arm, 5...Guide block (cable guide),
20...Cable attachment part, 24...Ear piece, 25...
...Fitting part, a... Outer cable (clutch cable), b... Inner cable (clutch cable).

Claims (1)

[Scope of Claim for Utility Model Registration] A clutch cable consisting of an outer cable and an inner cable inserted into the outer cable so as to be movable in the axial direction, with an end of the inner cable exposed and extending from an opening at one end of the outer cable. In a clutch pedal that is connected by fastening to a cable fastening part provided at the middle part of the pedal arm, an ear piece is provided at the upper end of the pedal arm, and a part of the inner cable exposed from the outer cable is provided. A guide surface that slides and guides the inner cable so that the axial direction near the opening at one end of the inner cable is substantially constant in a predetermined direction, and a fitting part into which the lug is fitted, and the fitting part is fitted to the lug. A cable guide structure for a clutch pedal of an automobile, characterized in that a guide block is provided which is attached to the clutch pedal by fitting and screwing them together.