Force limiting device and method
US8601897B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 30, 2009 |
| Grant date | Dec 10, 2013 |
| Priority date | — |
| Expiry date | Jan 13, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20329
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a method and apparatus for limiting the contact force between a moving device and another object, using a parallel mechanism and torque limiters where the threshold force to activate the force limiting mechanism is not related to the configuration of the moving device or the location of the contact force relative to the activation point of the force limiting mechanism, and where the mechanism may be configured for one, two or three degrees of freedom. A counterbalance mechanism is also provided to counteract gravity load when the force limiting mechanism is configured for three degrees of freedom and responsive to contact forces including a vertical element. In particular, the invention relates to a method and apparatus for limiting the contact force between a moving robotic device and a contactable object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.