Door latch device and actuator
US12410644B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2022 |
| Grant date | Sep 9, 2025 |
| Priority date | — |
| Expiry date | May 13, 2043 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05B81/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A door latch device includes: a rotating body; first and second levers; a lock mechanism on which an unlocking operation is performed and an open link is disposed in an unlocked position; and a latch mechanism. Further, the lock mechanism includes a lock lever which causes the open link to rotate when being operated by rotation of the rotating body, the rotating body is provided with two tilted walls so as to move the open link to the unlocked position when being rotated in one side from a reference position while the open link is disposed in a locked position, keep the open link in the unlocked position when being rotated in another side to the reference position while the open link is disposed in the unlocked position, and move the open link to the locked position when being further rotated in the another side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.