JPH10211826A - Cable type clutch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To apply a reform to a cable type clutch used in an automobile, and double a moving stroke of a clutch cable when a clutch pedal is stepped. SOLUTION: In this cable type clutch, a clutch pedal 1 and a clutch release arm 12 are connected by an inner cable 7 of a clutch cable 6. Here, in an upper location from the center of turning of the clutch pedal 1, a pulley 18 is pivotally mounted, in this pulley 18, an intermediate part of the inner cable 7 is linked, where one end is fixed to a dash panel with the other end locked to the clutch release arm 12. The inner cable 7, by linking the intermediate part, generates two times movement as compared with that in the past directly connected to the clutch pedal 1. Accordingly, since movement of the clutch pedal 1 can be lessened, the pedal can be made to approach the dash panel 3 or the like, peripheral layout thereof can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable-type clutch applied to an automobile equipped with a manual transmission.

[0002]

2. Description of the Related Art In a motor vehicle equipped with a manual transmission, a clutch pedal is provided, and when a driver depresses the clutch pedal to release a clutch, a shift lever is used to perform a shift operation. The clutch pedal is pivotally mounted on a pedal bracket projecting from the dash panel at a portion slightly lower than the upper end, and one end of a clutch cable is connected to the upper end above the shaft mounting portion. As the clutch cable, a double cable in which the outer side of the inner cable is covered with an outer cable is used, and the inner cable moves with reference to the outer cable fixed to the vehicle body side. The other end of the inner cable having one end connected to the clutch pedal is connected to a clutch release arm provided in a clutch mechanism integrated with the transmission.

With this structure, when the clutch pedal is depressed, the clutch release arm of the clutch device rotates via the clutch cable, and the clutch device operates. Since the clutch cable is directly connected, the stroke when the clutch pedal is depressed becomes the rotation angle of the clutch release arm.

Referring to FIGS. 6 and 7, an outline of a conventional cable type clutch will be described. 1 is a clutch pedal, and 2 is a pedal bracket projecting from the dash panel 3 into the vehicle interior. The clutch pedal 1 is mounted on the pedal bracket 2 by a shaft 4. The left side of the dash panel 3 in the figure is an engine room, in which a transmission 5 integrally provided with a clutch mechanism is provided.

[0005] Reference numeral 6 denotes a clutch cable, which is a double cable in which an inner cable 7 is covered with an outer cable 8. As shown in FIG. 7, one end of the outer cable 8 is fixed to a bracket 9 attached to the transmission 5 by screwing a nut 10, and the other end is attached to the dash panel 3 via the bracket 11 as shown in FIG. Have been. One end of the inner cable 7 is a transmission 5
The other end is connected to a clutch release arm 12 provided on the side of the clutch pedal 1, and the other end is mounted on a shaft 14 at the upper end of the clutch pedal 1 via a bracket 13.

The clutch release arm 12 is pivoted about the shaft 15 by being pulled by the inner cable 7, and has a conventionally well-known structure. When the clutch pedal 1 is depressed, the clutch release arm 12 moves counterclockwise in FIG. When rotated, the clutch is disengaged, and when the foot is released from the clutch pedal 1, the clutch is engaged.

[0007]

The present cable type clutch having such a configuration does not have any problem in function. However, at the time of manufacturing, if the transmission 5 used for a certain vehicle type is diverted to another vehicle type, the distance between the floor or dash panel and the clutch pedal is smaller than that of the previous vehicle type. In addition, if the depressing stroke of the clutch pedal cannot be made large, it may be impossible to divert the clutch pedal or a problem that the pedal layout must be largely changed.

The present invention has been made in view of this point. When a single type of transmission is used for a plurality of vehicle types, the use of a pulley mechanism may cause a problem due to the clutch pedal. It is an object of the present invention to provide a cable-type clutch which is not required.

A technique using a pulley to change the direction of the inner cable is disclosed in Japanese Utility Model Laid-Open Publication No. 56-606.
Japanese Patent Application Laid-Open No. 64-9827 discloses a technique of interposing first and second connecting means between a clutch pedal or a brake pedal and a master cylinder. The former is common to the present invention in that a pulley is used, but does not suggest a specific configuration of the present invention at all because its structure merely changes the routing direction of the inner cable. . The first and second linking means in the latter one are:
The configuration is completely different from the present invention using a pulley, and does not suggest the present invention.

[0010]

According to the present invention, as a means for solving the above-mentioned problems, in the invention described in claim 1, the clutch pedal and the clutch release arm of the clutch mechanism are formed by a double cable. In a cable-type clutch connected by an inner cable of a clutch cable, a pulley is axially mounted on a portion above a rotation center of the clutch pedal, one end of the pulley is fixed to a vehicle body side, and the other end is connected to the clutch release arm. It is characterized in that the locked inner cable is hung on the middle part.

According to a second aspect of the present invention, in the first aspect, an auxiliary pulley is provided close to a pulley on which an intermediate portion of the inner cable is hooked, and the auxiliary pulley separates the inner cable. Characterized in that it is configured to prevent

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIG.
Therefore, the same parts as those in FIGS. 6 and 7 are denoted by the same reference numerals and described. In FIG. 1, reference numeral 1 denotes a clutch pedal, and reference numeral 2 denotes a pedal bracket projecting from a dash panel 3 into a vehicle interior. The clutch pedal 1 is mounted on the pedal bracket 2 by a shaft 4. The left side of the dash panel 3 in the figure is an engine room, in which a transmission 5 integrally provided with a clutch mechanism is provided.

Reference numeral 6 denotes a clutch cable, which is a double cable in which an inner cable 7 is covered with an outer cable 8. 7, one end of the outer cable 8 is fixed to a bracket 9 attached to the transmission 5 by screwing a nut 10, and the other end is attached to the dash panel 3 via the bracket 11 as shown in FIG. Have been. One end of the inner cable 7 is connected to a clutch release arm 12 provided on the transmission 5 side, and the other end is connected via a bracket 13 and a shaft 16.
It is locked by a clutch cable mounting hook 17 provided on the dash panel 3.

A pulley 18 is provided above the rotation center (shaft 4) of the clutch pedal 1, and is rotatably supported by a shaft 19. Details of this part will be described later. An intermediate portion of the inner cable 7 is hung on the pulley 18. The reference numeral 20 in FIG. 1 denotes a stopper, which restricts the return position of the clutch pedal 1. Since the middle portion of the inner cable 7 is hung on the pulley 18, when the driver steps on the clutch pedal 1, the middle portion of the inner cable 7 is pulled, so that the end is directly connected to the upper end of the clutch pedal 1. The inner cable 7 can be pulled with a double stroke as compared with the conventional one.

Details of each part will be described with reference to FIGS. FIG. 2 is an enlarged view of a main part of FIG. 1 omitting a dash panel. As shown in this figure, the pulley 18 is mounted on a cable guide 21 not shown in FIG. An auxiliary pulley 22 having a diameter smaller than that of the pulley 18 is attached to an end of the cable guide 21 by a shaft 23 so as to cooperate with the pulley 18 to prevent the inner cable 7 from coming off.

FIG. 3 is a view of FIG. 2 viewed from the direction of arrow A, and FIG. 4 is a cross-sectional view taken along line BB of FIG. As is clear from these figures, one of the cable guides 21 has a long shape and the other has a short inverted U-shape, and the pulley 18 and the auxiliary pulley 22 are supported by shafts 19 and 23 on the longer side. Is being worn. As shown in a plan view in FIG. 3 and a cross section in FIG. 4, the distal end of the clutch pedal 1 is fitted into a portion surrounded by the cable guide 21 and the roller 24 so as not to come off.

FIG. 5 is a view of the bracket 13 in FIG. As is apparent from this figure, the tip of the clutch cable attachment hook 17 penetrates the bracket 13 and engages with the shaft 16.

The operation of the embodiment of the present invention will be described. When the driver steps on the clutch pedal 1, the clutch pedal 1 rotates about the shaft 4. At this time, since the tip of the clutch pedal 1 is engaged with the roller 24, the cable guide 21 also moves. Then, the pulley 18 supported by the cable guide 21 pulls the inner cable 7. Since the middle portion of the inner cable 7 is hooked on the pulley 18, the stroke is twice as long as when the inner cable 7 is directly pulled.

Even if the inner cable 7 swings when it is pulled, it does not come off because the auxiliary pulley 22 is provided. The auxiliary pulley 22 has a smaller diameter than the pulley 18, but this is sufficient to prevent the inner cable 7 from coming off.
8 can be easily performed.

It is the same as in the prior art that the clutch mechanism is brought into the disconnected state by the inner cable 7 being pulled. However, since the same amount of depression of the clutch pedal 1 is required to pull the inner cable 7, the distance between the clutch pedal and the dash panel can be reduced.
There is a degree of freedom in the layout of this part.

In the embodiment described above, the pulley 18 is supported via the cable guide 21. However, instead of this, the shaft is passed through the upper end of the clutch pedal 1, and the pulley and the auxiliary pulley are supported on this shaft. In this case, substantially the same operation and effect can be obtained.

[0022]

Since the present invention is a cable type clutch constructed as described above, according to the first aspect of the present invention, even if the moving stroke of the clutch cable (inner cable) is the same, the clutch can be used. Since the amount of depression of the pedal is half that of the conventional one, the layout of the member arrangement near the clutch pedal is improved, and the common use of parts with other vehicle types is facilitated.

According to the second aspect of the present invention, since the inner cable is gripped by the pulley and the auxiliary pulley on which the intermediate portion of the inner cable is hooked, the inner cable may come off due to vibration or the like caused by running of the vehicle. Absent.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is an enlarged side view showing a main part of FIG.

FIG. 3 is a view as seen from the direction of arrow A in FIG. 2;

FIG. 4 is a sectional view taken along line BB of FIG. 2;

FIG. 5 is a view of a bracket portion in FIG. 2 viewed from the direction of arrow C;

FIG. 6 is a side view showing a conventional example.

FIG. 7 is a plan view of the one shown in FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Clutch pedal 6 Clutch cable 7 Inner cable 8 Outer cable 11 Bracket 12 Clutch release arm 13 Bracket 16 axis 17 Clutch cable mounting hook 18 Pulley 19 axis 21 Cable guide 22 Auxiliary pulley 23 axis

Claims (2)

[Claims] In a cable type clutch in which a clutch pedal and a clutch release arm of a clutch mechanism are connected by an inner cable of a clutch cable composed of a double cable, a pulley is axially mounted on a portion above a rotation center of the clutch pedal. A cable-type clutch, wherein one end of the pulley is fixed to the vehicle body and the other end of the inner cable is engaged with the clutch release arm. 2. The cable according to claim 1, wherein an auxiliary pulley is provided close to a pulley on which the intermediate portion of the inner cable is hooked, and the auxiliary pulley prevents the inner cable from coming off. Expression clutch.