Digital beam torque wrench with an electronic sensor
US8438957B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2010 |
| Grant date | May 14, 2013 |
| Priority date | — |
| Expiry date | May 22, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B23/1427
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A torque wrench includes a main beam having a distal end and a proximal end, a drive element disposed at the distal end of the main beam, a stationary beam having a distal end fixedly secured to the main beam at a first location on the main beam, and having a proximal end, and a displacement sensor assembly disposed at a second location associated with the main beam and with the stationary beam to detect an amount of displacement of the main beam relative to the stationary beam. The displacement sensor assembly includes an actuating element secured to one of the main beam or the stationary beam and a sensor rigidly secured to the other one of the main beam or the stationary beam and responsive to the actuating element. An electronic component is configured to generate a torque measurement based on the generated electrical signal, and store at least one of the generated electrical signal and the torque measurement for a several positions of the main beam relative to the stationary beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.