US 12,077,985 B2
Door lock assembly with waggle reduction
Douglas Clark, Wallingford, CT (US); Rick Leites, West Haven, CT (US); Scott Morstatt, Maryville, TN (US); Eric Palmieri, Rocky Hill, CT (US); and Sharath Ramachandran, New Haven, CT (US)
Assigned to ASSA ABLOY Access and Egress Hardware Group, Inc., New Haven, CT (US)
Filed by ASSA ABLOY Access and Egress Hardware Group, Inc., New Haven, CT (US)
Filed on May 4, 2022, as Appl. No. 17/736,782.
Claims priority of provisional application 63/232,831, filed on Aug. 13, 2021.
Claims priority of provisional application 63/184,540, filed on May 5, 2021.
Prior Publication US 2022/0356729 A1, Nov. 10, 2022
Int. Cl. E05B 3/00 (2006.01); E05B 63/04 (2006.01)
CPC E05B 3/003 (2013.01) [E05B 63/04 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A door lock system comprising:
a lock spindle aligned along a lock axis, a first end of the lock spindle configured to engage a lock body;
an outer spindle aligned along the lock axis and cooperating with the lock spindle, the outer spindle having a first diameter; and
a disc operatively connected to the outer spindle, the disc having an opening centered on the lock axis to slidingly receive the lock spindle along the lock axis, the disc having a second diameter larger than the first diameter, wherein the opening and the lock spindle have complementary shapes, wherein torque is transmitted from a handle to the disc and from the disc to the lock spindle via the opening;
wherein the disc includes at least one tab that extends axially from a surface of the disc facing the lock body, and wherein the at least one tab is configured to slide along an elongated arcuate opening in a backplate when the disc rotates about the lock axis.