Electronic lock actuator with helical drive member
US7918114B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 7, 2006 |
| Grant date | Apr 5, 2011 |
| Priority date | — |
| Expiry date | Apr 24, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/713
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An actuator assembly is for a lock including a handle, a latch, a retractor for retracting the latch when the handle rotates, and a lock member displaceable between locked and unlocked positions, which either releasably couples the handle with the retractor or releasably prevents handle rotation. The actuator includes a motor having a shaft rotatable about an axis and a coupler spring disposed about the axis and having a first end coupled with the lock member and a second end. A drive member is coupled or integrally formed with the motor shaft and has a helical drive surface threadably engaged with the coupler spring second end, such that rotation of the shaft displaces the coupler spring along the axis to move the lock member between the locked and unlocked positions. Preferably, the drive member includes a spring coupled with the motor shaft and threadably engaged with the coupler spring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.