Door lock with anti-ligature function
US8720960B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2011 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | May 13, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/85
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A lock device comprising a lock mechanism configured to be mounted on a door, the lock mechanism including a locking member having extended and refracted positions relative to the door for releasably securing the door relative to an adjacent structure, and the lock mechanism including a pivoting member operably connected to the locking member such that pivotal movement of the pivoting member about an axis moves the locking member between the extended and retracted positions, and an assembly including a handle manually pivotable about the axis, and a clutch mechanism connecting the handle to the pivoting member, the clutch mechanism at all times transmitting a torque below a predetermined value from the handle to the pivoting member, and the clutch mechanism at all times allowing the handle to pivot relative to the pivoting member when the torque exceeds the predetermined value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.