Clutch driven disc friction material mounting
US6244414A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 9, 1999 |
| Grant date | Jun 12, 2001 |
| Priority date | — |
| Expiry date | Sep 9, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2069/0458
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A clutch driven disc assembly includes a hub and an annular spring plate fixed to the hub. A friction disc assembly is mounted concentric with an axis of rotation of the hub and is rotatably relative to the spring plate. A plurality of drive springs are operably disposed between the spring plate and the friction disc assembly. The friction disc assembly further includes a reinforcing plate and a substantially annular disc fixed to the reinforcing plate. A friction material button is fixed to the annular disc. Friction material button has a metallic friction material cookie with at least three apertures. A backer plate is fixed to the friction material. At least three spot welds are within three corresponding apertures in the cookie. At least one of the welds are offset from a line joining two others of the welds. The welds join the substantially annular disc and the backer plate, in turn fixing the friction material button to the substantially annular disc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.