Friction coupling and coupling sleeve
US4428737A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 20, 1981 |
| Grant date | Jan 31, 1984 |
| Priority date | — |
| Expiry date | Aug 20, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D25/046
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In a friction coupling comprising a shaft, a hub surrounding the shaft, a coupling sleeve disposed between the shaft and the hub, the coupling sleeve having an elastic hollow wall defining an internal cavity and comprising radially inner and outer peripheral wall portions respecitvely facing the shaft and the hub, and fluid under pressure in the cavity to force the peripheral wall portions against the shaft and the hub under a pressure sufficient for transmitting a torque between the shaft and the hub by the coupling sleeve, torque transmission is assured with a coupling sleeve consisting of a flexible tube composed of an assembly of a plurality of joined I-section strips, each strip having two transverse web portions and an interconnecting vertical web portion, the transverse web portions being joined to form the peripheral wall portions of the coupling sleeve and the vertical wall portions constituting load-carrying partitions in the internal cavity for transmitting peripheral forces between the shaft and the hub, the partitions separating the internal cavity into separate annular chambers and defining passages therein to connect the annular chambers, and two profiled end section…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.