Balance mechanism of an industrial robot
US4954043A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 1990 |
| Grant date | Sep 4, 1990 |
| Priority date | — |
| Expiry date | Feb 7, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25J19/0016
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A balance mechanism of an industrial robot is provided with a first balance mechanism for a first arm which is swingably mounted to a stand of the robot and a second balance mechanism for a second arm which is swingably mounted to a distal end of the first arm. The first balance mechanism includes a flexible coupling device such as, for example, a chain, led through a guide, which couples between a coupling element of a coupling member which is mounted to a center of angular movement of a proximal end of the first arm and a spring having one end fixed to the stand and which is moved in the direction of deformation when the first arm is angularly moved. The second balance mechanism includes a counterbalancer disposed in the opposite side to an operation side of the second arm and a center of angular movement of the second arm constitutes a fulcrum. The balance mechanisms can be applied to the robot without exchanging parts greatly even if the robot is installed in any position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.