Clamp device
US10744621B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2016 |
| Grant date | Aug 18, 2020 |
| Priority date | — |
| Expiry date | Mar 20, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B5/16
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A clamp device is equipped with a clamp body, a piston rod, a link mechanism, a detection mechanism for detecting a state of rotary motion of a clamp arm, and a determination unit for determining whether a state of clamping exists. The detection mechanism includes a first proximity sensor, and a knuckle joint having a first sloped surface. The determination unit, on the basis of a comparison of an output signal from the first proximity sensor to a clamp threshold value, determines whether a state of clamping exists, and on the basis of a comparison to a clamping force generation threshold value, determines whether a state of generation of clamping force exists.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.