Torque restriction mechanism, drive device, and robot device
US11148304B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 5, 2017 |
| Grant date | Oct 19, 2021 |
| Priority date | — |
| Expiry date | Jul 21, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2011/006
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A torque restriction mechanism is provided by which torque cutoff and torque transmission can be reliably performed without being affected by a rotation state of the drive unit, and damage to a collision object can be reduced even with a simple configuration. The torque restriction mechanism includes a first clutch and a second clutch. The first clutch cuts off torque to a driven unit when reaction torque at a stationary portion of a motor equals or exceeds a first value. The second clutch that transmits torque in accordance with a rotation state of a rotor of the motor, cuts off torque to the driven unit when the reaction torque equals or exceeds a second value larger than the first value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.