Industrial robot with wrist actuator mechanism
US5201239A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 8, 1991 |
| Grant date | Apr 13, 1993 |
| Priority date | — |
| Expiry date | Oct 8, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20207
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An industrial robot includes a a hollow arm extending from a robot base, a wrist base mounted on a distal end of the hollow arm for rotation about a longitudinal axis of the hollow arm, a wrist mounted on a distal end of the wrist base for swinging movement about an axis transverse to the longitudinal axis, and a wrist socket mounted on a distal end of the wrist for rotation about an axis parallel to the longitudinal axis. The industrial robot also includes first, second, and third actuators such as motors. The first actuator is fixedly mounted on a rear end of the arm remotely from the wrist base and produces rotational drive forces that are transmitted to rotate the wrist base. The second actuator is fixedly mounted on the rear end of the arm and produces rotational drive forces that are transmitted to swing the wrist. The third actuator is fixedly mounted on the wrist and produces rotational drive forces that are transmitted to rotate the wrist socket.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.