Robot wrist
US4703157A · kind A · utility
4Cited by
3References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 30, 1986 |
| Grant date | Oct 27, 1987 |
| Priority date | — |
| Expiry date | Jun 30, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25J19/0037
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A robot wrist is built up of three rotatable tubular wrist parts arranged one after the other, the axes of rotation of the first and the second part intersecting each other and the axis of rotation of the third part intersecting the longitudinal axis of the third part. Three mirrors are arranged inside the wrist, so that a light beam arriving along the axis of rotation of the first part passes unrefracted through the wrist irrespective of the rotary positions of the three wrist parts. The wrist enables processing by laser of workpieces with no restriction of the orientation capacity of the wrist.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.