Torsion damping device for an automobile clutch friction disc
US4613029A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 9, 1984 |
| Grant date | Sep 23, 1986 |
| Priority date | — |
| Expiry date | Aug 9, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D13/644
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A torsion damping device for an automobile clutch friction disc comprises two coaxial parts angularly movable relative to one another to a limited extent in opposition to the action of first helicoidal springs disposed between the parts, these first springs damping vibrations between the clutch drive and driven shafts. One of the coaxial parts comprises a coaxial web and hub themselves angularly movable relative to one another over a limited sector defined by complementary toothings on the web and hub. Second helicoidal springs are disposed between the web and hub to oppose their relative angular movement, damping noise when in neutral gear. At least one block of elastomeric material is disposed between the toothings on the web and hub, the or each block allowing the toothings to strike positively against one another but braking their relative motion to reduce noise when torque in the clutch is reversed. The or each block comprises a ring engaged around one of the teeth of one of the toothings and disposed in a groove in that tooth, so that the ring is compressed by the neighboring teeth of the other toothing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.