Tightening tool
US5372206A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1993 |
| Grant date | Dec 13, 1994 |
| Priority date | — |
| Expiry date | Sep 30, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B23/14
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A tightening tool includes a drive member rotatably driven by a motor. An intermediate member is interposed between the drive member and a spindle and rotatable with the drive member. A claw clutch is formed between the spindle and the intermediate member and is engageable when the spindle is moved axially through abutment of a bit on a work. A connecting mechanism is interposed between the intermediate member and the drive member for permitting rotation of the intermediate member relative to the drive member within a predetermined range. A biasing member normally keeps the rotational position of the intermediate member relative to the drive member. The rotation of the drive member is transmitted to the intermediate member after the drive member is rotated relative to the intermediate member by a predetermined angle when the claw clutch is engaged by movement of the spindle through abutment of the bit on the work.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.