Wrist mechanism
US4990050A · kind A · utility
106Cited by
3References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 1989 |
| Grant date | Feb 5, 1991 |
| Priority date | — |
| Expiry date | Apr 10, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20207
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A wrist mechanism including: at least three rigid elements each having an element axis, said rigid elements being connected in series so that adjacent two elements are rotatable relative to each other about a rotation axis, the rotation axis of said two adjacent rigid elements intersecting said element axes thereof, each rotation axis of each rigid element intersecting adjacent rotation axis; a first rotating mechanism for rotating every second rigid element relative to the other rigid elements; a second rotating mechanism for rotating the other rigid element relative to said every second rigid element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.