Quick-releasing linear actuator
US7594450B2 · kind B2 · utility
13Cited by
4References
10Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | May 23, 2006 |
| Grant date | Sep 29, 2009 |
| Priority date | — |
| Expiry date | Mar 5, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19735
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A quick-releasing linear actuator suitable for electric hospital beds includes a motor, a transmission device, a clutch device and a pulling arm device. With the pulling of the pulling arm of the pulling arm device, a clutch and a clutch base of the clutch device can be disengaged, such that the screw of the transmission device will not be impeded by the worm gear. When a force is exerted to the telescopic rod of the transmission device, the screw can rotate by itself to rapidly lower the telescopic rod, thereby to achieve the rapid releasing of the hospital beds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.