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1. (WO2018102351) QUIET LATCH FOR A LOCKING DEVICE

Pub. No.:    WO/2018/102351    International Application No.:    PCT/US2017/063606
Publication Date: Fri Jun 08 01:59:59 CEST 2018 International Filing Date: Thu Nov 30 00:59:59 CET 2017
IPC: E05B 65/10
E05C 21/00
Applicants: SCHLAGE LOCK COMPANY LLC
Inventors: YALAMATI, Bhargav
CHETAN, V.
SHETTY, Sachin, Chandra
YADAV, Prabhat, Kumar
Title: QUIET LATCH FOR A LOCKING DEVICE
Abstract:
A locking device for a door located at a door frame having a door strike. The locking device includes an actuator having a neutral position and a displaced position, and a latchbolt assembly having an extended position configured to engage the door strike, and a retracted position configured to move past the door strike. The latchbolt assembly includes a latchbolt link configured to move the latchbolt in response to movement of the actuator. A first dampening device is disposed adjacent to the latchbolt link, with the dampening device resiliently engaging the latchbolt link as the latchbolt link moves from the retracted position to the extended position. The first dampening device limits movement of the latchbolt link. A second dampening device is configured to restrain movement of the latchbolt during movement from the retracted position to the extended position.