JPH0454332Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention provides a vibration-isolating structure for a cable-type clutch release mechanism. The present invention relates to a vibration isolation structure for a cable type clutch release mechanism in which the inner cable is connected to the release fork via the clevis.

(Conventional example) In general, a cable-type clutch release mechanism connects one end of an inner cable to the release fork via a clevis and the other end to the clutch pedal, and connects one end of an outer cable that guides the inner cable to the clutch housing. The other end of the inner cable is supported by the protruding outer receiver on the dash panel, and the inner cable is connected to the inner cable via a vibration isolating rubber in order to prevent the vibration transmitted from the clutch mechanism to the release fork from being transmitted to the inner cable. locked in the clevis;
The vibrations transmitted to the release fork are damped by the vibration isolating rubber.

By the way, in the conventional vibration-proof structure of this type of clutch release mechanism, as shown in, for example, Japanese Utility Model Publication No. 57-47472, the vibration-proof rubber is previously assembled to the inner cable via an end fitting. However, when connecting the inner cable to the release fork, it is necessary to first pass one end of the inner cable through the through hole of the outer holder. The vibration isolating rubber assembled to the cable must be large enough to pass through the through hole of the outer receiver, that is, the outer diameter of the vibration isolating rubber must be smaller than the inside diameter of the through hole.

Therefore, with the above structure, it is difficult to ensure a sufficient rubber capacity of the vibration isolating rubber, and it is therefore extremely difficult to reliably damp vibrations from the release fork.

(Purpose of the invention) The present invention was devised in view of the above-mentioned circumstances, and the purpose is to have a simple structure and easy assembly, and to place the inner cable in the center of the through-hole of the vibration-proof rubber. It is an object of the present invention to provide a vibration-proof structure for a cable-type clutch release mechanism that can be held at all times and reliably damp vibrations from a release fork.

(Structure of the invention) The present invention provides a cable type clutch in which the end member of an inner cable is locked to a clevis through a vibration-proof rubber, and the inner cable is connected to a release fork through the clevis. The vibration isolating structure of the release mechanism is such that the vibration isolating rubber is provided with a through hole through which the end member can be inserted, and the vibration isolating rubber 7 is fixed to the clevis 8;
The end member 5 is provided with a positioning projection 52 extending toward the inner cable 3 and having a larger diameter than the inner cable 3, and a locking hole 61 into which the positioning projection 52 fits and locks the end member 5. and a cable guide hole 62 that is continuous with the locking hole 61 and has a narrower width than the locking hole 61 and allows the inner cable 3 to be inserted therethrough.
On the other hand, a fitting recess 72 for the locking plate 6 is formed in the vibration isolating rubber 7, and the locking plate 6, which locks the end member 5, is fitted into the recess 72. It is characterized by this.

(Example) Examples of the present invention will be described below based on the drawings.

In the figure, 1 is a clutch housing, 10 is a release fork supported by the housing 1 in a freely swinging manner, and one end of the fork 10 is connected to a clutch release bearing (not shown) that controls on/off of the clutch. ing.

Reference numeral 2 denotes a clutch operation cable consisting of an inner cable 3 and an outer cable 4 that guides the inner cable 3, and one end of the outer cable 4 is connected to a dash panel (not shown).
In addition, the other end is supported by an outer receiver 11 integrally formed with the clutch housing 1.

Moreover, the inner cable 3 has one end thereof
A positioning protrusion 5 is connected to a clutch pedal (not shown) pivotally supported in the vehicle interior, and has a flange 51 and a positioning protrusion 5 on the other end extending toward the inner cable 3 and having a larger diameter than the inner cable 3.
2 is fixed by caulking, and this end member 5 is locked to a clevis 8 via a locking plate 6 and a vibration isolating rubber 7, and this clevis 8 is connected to the release fork 10. It is attached to the bottom edge of the .

The clevis 8 is connected to a pair of opposing side plates 8.
1, 81 and a connecting plate 82 that connects one end of these side plates 81, 81.
The free end side of the release fork 10 is bent inward and brought close to each other, and a locking pin 83 for locking the lower end of the release fork 10 is mounted between the adjacent portions, while the connecting plate 8
A through hole 84 through which the end member 5 can be inserted is bored in the center of the hole 2 .

Further, the vibration isolating rubber 7 is formed into a substantially square column shape,
A through hole 71 through which the end member 5 can be inserted is provided in the center, and a recess 72 for fitting the locking plate 6 is formed on the side surface where the through hole 71 opens, and in the recess 72, A dish-shaped holder 74 having a through hole 73 communicating with the through hole 71 is attached, and the holder 74 is
The locking plate 6 is incorporated therein.

The vibration isolating rubber 7 is fixed to the inner surface of the connecting plate 82 of the clevis 8 with the through hole 71 communicating with the through hole 84. 7, the clevis 8 and the holding body 74 are vulcanized and bonded to the vibration isolating rubber 7,
These three members 7, 8, and 74 are integrated.

On the other hand, the locking plate 6 that locks the end member 5 to the vibration isolating rubber 7 is a flat plate with a rectangular plane that can be fitted into the holder 74, with a
A locking hole 61 is formed in which the positioning projection 52 of the end member 5 can fit and has a smaller diameter than the outer diameter of the flange 51, and the locking plate 6 is formed with a locking hole 61 that is continuous with the locking hole 61 and has a diameter smaller than the outer diameter of the flange 51. The inner cable is inserted into the locking hole 6 from the outside with a width smaller than that of the locking hole 61.
1 is formed with a cable guide hole 62 that can be introduced into the cable guide hole 62.

Note that 30 in the figure indicates a dust cover that covers the exposed portion of the inner cable 3.

In the vibration isolation structure of the cable type clutch release mechanism having the above configuration, in order to interlock and connect the inner cable 3 to the release fork 10, first the end member 5 and the inner cable fixing the end member 5 are connected to each other. 3 is passed through the through hole 12 of the outer receiver 11, and then further inserted through the through hole 71 of the vibration isolating rubber 7 to the through hole 73 of the holder 74.

Subsequently, the inner cable 3 that has passed through the through hole 73 is inserted into the locking hole 61 through the guide hole 62 of the locking plate 6, and then the locking plate 6 is moved to the end member 5 side. Then, the positioning protrusion 52 of the end member 5 is fitted into the locking hole 61, and the locking plate 6 is set in the holder 74.

Thereafter, the lower end of the release fork 10 is engaged with the engagement pin 83 of the clevis 8, and as the fork 10 is engaged with the engagement pin 83, the fork 10 is attached to the end member 5. Therefore, the locking plate 6 will not fall off from the holding body 74.

The vibrations transmitted from the clutch mechanism to the release fork are damped by the vibration isolating rubber 7.
It is not transmitted to the inner cable 3.

Further, the positioning protrusion 52 of the end member 5 is fitted into the locking hole 61 of the locking plate 6, and the locking plate 6 is fitted with the holder 74 assembled to the vibration isolating rubber 7. Therefore, the locking plate 6 is connected to the vibration isolating rubber 7.
The positioning protrusion 52
Therefore, the inner cable 3 always remains in the through hole 71.
Since the locking plate 6 is held at the center of the vibration isolating rubber 7 and does not come into contact with the vibration isolating rubber 7, the opening of the guide hole 62 is closed by the inner surface of the recess 72. There is no risk of it falling off.

(Effects of the invention) As described above, according to the invention, the vibration isolating rubber fixed to the clevis is provided with a through hole through which the end member can be inserted, and the vibration isolating rubber is fixed to the clevis.
The end member is provided with a positioning protrusion extending toward the inner cable and having a larger diameter than the inner cable, and a locking hole into which the positioning protrusion fits and locks the end member; providing a locking plate having a cable guide hole that is continuous and narrower than the locking hole and through which the inner cable can be inserted, and forming a fitting recess for the locking plate in the vibration isolating rubber; By fitting the locking plate that locks the end member into the recess, there is no need to pass the vibration isolating rubber through the through hole of the outer receiver when connecting the inner cable to the release fork. Therefore, by increasing the size of the vibration isolating rubber and ensuring sufficient rubber capacity, it is possible to prevent vibrations from the release fork from being transmitted to the clutch cable or clutch pedal. Since the locking plate is fitted into the locking hole of the locking plate and the locking plate is fitted into the fitting recess of the vibration isolating rubber, the locking plate cannot be displaced with respect to the vibration isolating rubber. Also, the positioning protrusion does not shift with respect to the locking plate, so the inner cable is always held at the center of the through hole and does not come into contact with the vibration isolating rubber, and the guide Since the opening of the hole is closed by the inner surface of the recess, there is no possibility that the locking plate will fall off from the inner cable.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway side view showing one embodiment of the present invention, FIG. 2 is an enlarged sectional view taken along the line of FIG. 1, and FIG. 3 is an exploded perspective view of the main parts. 3... Inner cable, 5... End member,
6... Locking plate, 61... Locking hole, 7... Anti-vibration rubber, 71... Through hole, 8... Clevis.

Claims (1)

[Scope of utility model registration request] Anti-vibration of a cable-type clutch release mechanism in which the end member 5 of the inner cable 3 is locked to a clevis 8 via a vibration-isolating rubber 7, and the inner cable 3 is connected to a release fork 10 via the clevis 8. The vibration isolating rubber 7 is provided with a through hole 71 through which the end member 5 can be inserted, the vibration isolating rubber 7 is fixed to the clevis 8, and the end member 5 is provided with a through hole 71 through which the end member 5 can be inserted. A positioning projection 52 extending to the side and having a larger diameter than the inner cable 3 is provided, and a locking hole 61 into which the positioning projection 52 fits and locks the end member 5 is continuous with the locking hole 61. and the inner cable 3 is narrower than the locking hole 61.
The locking plate 6 is provided with a cable guide hole 62 through which the cable can be inserted, and a recess 72 for fitting the locking plate 6 is formed in the vibration isolating rubber 7.
A vibration-proof structure for a cable type clutch release mechanism, characterized in that the locking plate 6 locking the end member 5 is fitted into the locking plate 6.