Articulated robot
US5634377A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 1995 |
| Grant date | Jun 3, 1997 |
| Priority date | — |
| Expiry date | Mar 1, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20323
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A robot has a base shaft portion disposed on a base, a first arm attached in a rotatable state to the base shaft portion, and a second arm attached in a rotatable state to the first arm. Balance setting is performed so as to position the center of gravity of the second arm above the rotation shaft of the second arm. A housing to which the motor, whose driving power is transmitted to a rotation shaft of the second arm by a steel belt, and harmonic reduction gear for rotating the second arm are fixed, is supported in a rotatable state with respect to the first arm, the drive shaft of the motor being disposed substantially coaxial with a rotation shaft of the first arm. A support arm of the housing is supported in a rotatable and slidable state along the length direction of the first arm by a support member fixed to the base shaft portion. In adjusting the tension of the steel belt the housing is displaced by a setting bolt to change the gap between the rotation shaft of the second arm and the output shaft of the harmonic reduction gear.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.