Torque wrench
US5249486A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 2, 1993 |
| Grant date | Oct 5, 1993 |
| Priority date | — |
| Expiry date | Feb 2, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B21/005
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A torque wrench comprises a body member containing a piston-cylinder assembly to the piston of which is secured a shuttle member reciprocable with the piston within the body member, and a housing mounted on the body member and including a drive member pivotal about an axis and having a neck portion radially remote from the pivot axis. The shuttle member has a cylindrical bore therein the central longitudinal axis of which extends parallel with the pivot axis of the drive member, said bore housing a cylindrical drive pin in which is formed a transverse bore, the neck portion of the drive member being received within said bore whereby, on linear movement of the piston, the drive member is pivoted about the pivot axis with the neck portion of the drive member undergoing guided sliding movement in the bore of the drive pin, and the drive pin pivoting about the central longitudinal axis of the bore in the shuttle member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.