Robot wrist
US4997413A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 12, 1989 |
| Grant date | Mar 5, 1991 |
| Priority date | — |
| Expiry date | Apr 12, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19684
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A robot wrist comprising a plurality of mutaully rotatable tubular parts arranged in series with each other and a tubular member (2), such as a tool attachment, the member (2) being rotatably mounted on one (1) of the parts and, via a tubular gear, being driven by a separate motor. The motor (10, 11) has a tubular rotor (11) which, along with the tubular gear (4, 5), is concentrically arranged with the tubular member (2) to form a channel for supply and/or communication caples or light beams. The robot wrist exhibits a great orientation capacity in space while having at the same time a relatively small diameter, which enables the insertion of the part (1) into confined spaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.