Load sensor equipped with strain-generating member having strain elements with tube spacer for eliminating clamping force
US6677539B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2001 |
| Grant date | Jan 13, 2004 |
| Priority date | — |
| Expiry date | Sep 23, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S177/09
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A load sensor is assembled by screwing a nut on a bolt, sequentially fitting a washer and a tube spacer on the bolt, fitting a bore of a strain-generating member on the tube spacer, fitting another washer on the bolt, tightening another nut, and clamping a bobbin-shaped unit composed of the washers and the tube spacer between the nuts in the axial direction of the bolt. Since the strain-generating member having a thickness less than the height of a strain-generating member holding space formed between the washers is placed in the space with some clearance, even when the washers are fixed to the bolt by a strong pressing force, the pressing force will not directly act on the strain-generating member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.