Driving hub for a vehicle
US5069655A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 11, 1990 |
| Grant date | Dec 3, 1991 |
| Priority date | — |
| Expiry date | Dec 11, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H15/38
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The driving hub for a vehicle, in particular a bicycle, comprises a hub shaft (1), a hub sleeve (9) which is rotatable relative to the hub shaft (1) and a driver (13) rotatably mounted on the hub shaft (1). The driver (13) drives the hub sleeve (9) via a friction gear (17) of which the first toroidal disc (25) rests rigidly on the hub shaft (1), the friction wheel carrier (45) provided with several friction wheels (35) can be driven by the driver (13) and the second toroidal disc (27) is connected via a planetary gear (21) and an overrunning clutch (23) following the planetary gear (21) to the hub sleeve (9). The smoothly adjustable step-up ratio of the friction gear (17) is controlled from the interior of the hub shaft (1) via a rod (53) which entrains the pivotally mounted spindle (37) of the friction wheels (35) via a clutch ring ( 47). The rotating toroidal disc (27) is supported via an angular ball-bearing (31) on the thrust collar (33) of an expanding clutch (19) in such a way that the tip (71) of the pressure direction cone (69) defined by the angular ball-bearing (31) is located in the vicinity of the toroidal disc (27) in the center of the hub shaft (1). The toroidal disc …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.