Torque limiting mechanism for a mechanical assist mobile storage system
US6763742B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 13, 2001 |
| Grant date | Jul 20, 2004 |
| Priority date | — |
| Expiry date | Nov 13, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20636
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A mobile storage unit includes a drive system which is operable in response to rotation of an actuator handle mounted to the mobile storage unit. A torque limiting mechanism is interposed between the actuator handle and the drive system, for rotating an input member of the drive system in response to rotation of the actuator handle. The torque limiting mechanism de-couples the actuator handle from the drive system input member when an excessive force is applied to the actuator handle, to prevent adverse effects which can result from application of an excessive force to the components of the drive system. The torque limiting mechanism includes a hub mounted to the actuator handle and an input member mounted to an input shaft associated with the mobile storage unit drive system, and prevents rotation of the input member when the force applied to the hub member exceeds a predetermined threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.