JPH049459Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement in a clutch used in a vehicle.

Conventionally, the noise of vehicles equipped with engines and transmissions includes those caused by the engine and transmission. Engine noise is caused by the engine's own vibrations, and transmission noise is caused by the meshing of the gears. Particularly in this type of vehicle, the clutch has a structure in which the clutch housing is bolted to the flywheel housing, so engine vibration, gear meshing, and rattling are Solid-borne sound caused by hitting etc. contributes significantly to vehicle noise.

The purpose and problem of this invention was to reduce engine vibrations and solid-borne sound caused by gear engagement and rattle in the transmission, and to further reduce vehicle noise. On offer.

In view of the above problems, the clutch of this invention has a vibration isolation ring made of a dissimilar metal material selected from steel, cast iron, etc., which is different from the material of the flywheel housing and the clutch housing, and the flywheel housing It is interposed between the coupling layer and the clutch housing to maintain mechanical strength in the coupling layer and to reflect and reduce the propagation of vibrations through the coupling layer made of a different material.

Specific examples of the clutch of this invention will be described below with reference to the drawings.

The figure shows an embodiment 10 of the clutch of the invention, adapted for use in a truck.

The clutch 10 consists of a flywheel, clutch disk, pressure plate, clutch spring, clutch cover, and release.
Lever, release yoke etc. are omitted, aluminum alloy flywheel housing 1
1. Aluminum alloy clutch housing 1
2, and the anti-vibration ring 18 are shown.

The flywheel housing 11 and the clutch housing 12 have flanges 14, 15 which are matingly connected, and the flanges 14, 1
Female and male fitting stages 16 and 17 are formed at 5. Of course, the flanges 14 and 15 have a large number of screw holes 18 and blank holes 19 for the bolts 30.
are formed at predetermined intervals in the circumferential direction.

The anti-vibration ring 13 is made of a different metal material selected from steel, cast iron, etc., which is different from the material of the flywheel housing 11 and the clutch housing 12; Wheel housing 11
engine vibrations that propagate from the clutch housing 12 to the clutch housing 12;
Transmission vibrations propagating from the ring surface 2 to the flywheel housing 11
0,21, that is, it is reflected at the joint surface and attenuated.

Further, the vibration isolating ring 13 has a flange 14,
15, so the ring surface 20,
21 is formed with male and female fitting stages 22, 23, and is further provided with a number of blind holes 24 arranged at predetermined intervals in the circumferential direction to match the screw holes 18 and blind holes 19 of the flanges 14, 15. It is formed by

Clutch 10 constructed in this manner is assembled in the same manner as conventional clutches of this type, so a description thereof will be omitted.

The clutch is attached to the flywheel housing 11 with the steel anti-vibration ring 13 interposed therebetween.
In this clutch 10 in which the housing 12 is tightened with the bolt 30, sufficient mechanical strength is maintained in the vibration isolation ring 13, that is, the bonding layer.
The propagation of vibrations was then reflected and reduced by the bonding layer made of different materials.

When the vibration isolating ring 13 described above has the inner and outer circumferential surfaces partially spherical or wavy, the vibrations of the engine and transmission are absorbed by the joint surfaces of the different cross sections of the vibration isolating ring 13. additionally reflected and attenuated.

As can be understood from the above, the clutch of the present invention is characterized in that the anti-vibration ring is made of a dissimilar metal material selected from steel, cast iron, etc., which is different from the material of the flywheel housing and the clutch housing, and Because it is interposed between the wheel housing and its clutch housing, engine vibrations that are transmitted from the flywheel housing to the clutch housing and from the clutch housing to the flywheel housing are prevented. The meshing and rattling vibrations of the gear are reflected and damped by the vibration isolation ring, which is a coupling layer, thus
Vehicle noise is reduced as the solid propagation of vibrations is reduced; in addition, the bonding layer retains sufficient mechanical strength to ensure that the clutch housing and the flywheel housing are Relative movement between the clutch housing and flywheel due to deformation of the rubber seal caused by vibration or external forces is avoided, compared to when a rubber seal is interposed between the clutch housing and the flywheel. It ensures smooth operation and is very useful and practical for vehicles.

As is clear from the specific examples of this invention described above with reference to the drawings, the content of this invention is clear to those with ordinary knowledge in the technical field to which this invention pertains. In order to achieve the task of the invention, it is essential for the creation of the invention and is the nature of the invention, which originates from the technical essence of the invention, and which can be easily recognized objectively as incorporating it. materialized.

[Brief explanation of the drawing]

The figure is an axial sectional view of the clutch of the invention, which is adapted to be suitable for a truck. 11...Fly wheel housing, 12
...Clutch housing, 13...Vibration isolation ring.

Claims (1)

[Scope of utility model registration request] The anti-vibration ring is made of a different steel than the material of the flywheel housing and clutch housing,
Made of different metal materials selected from cast iron, etc.
and a clutch interposed between the flywheel housing and the clutch housing.