Power nutrunner
US6062114A · kind A · utility
35Cited by
5References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 10, 1998 |
| Grant date | May 16, 2000 |
| Priority date | — |
| Expiry date | Sep 10, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B23/141
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A power nutrunner has two consecutive planetary reduction gearings (12) and a torque limiting release clutch (13) disposed between a common ring gear (25) of the reduction gearings (12) and the tool housing (11). The ring gear (25) is tubular in shape and has an outer annular shoulder (41) at its one end carrying cam teeth (42) for cooperation with a spring biased thrust element (45) via balls (43) and cam surfaces (44). The thrust element (45) encircles the ring gear (25) and is rotationally locked relative to the housing (11) via a ball spline connection (47-49).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.