Cylindrical lockset

摘要

A cylindrical lockset comprises a multiple-compartment lock cage subassembly. A retractor is housed within a middle lock cage compartment. Spindle return torsion springs, for biasing corresponding handle-carrying spindles to their default positions, are housed within axially adjacent lock cage compartments. A torque plate transfers torque from the lock cage subassembly to relatively radially distal trim posts. A knob catch assembly seated in each handle-carrying spindle comprises a generally elliptically-shaped wrap around catch spring and a knob catch backup washer to resist axial loads produced by efforts to pull a handle off of the spindle. A key spindle provides a dog travel window defined by a closed, continuous edge of the key spindle, which window is positioned opposite of an axially-extending seam of the key spindle.

主权项

1. A door lock assembly comprising:
a lock body; a spindle, for carrying a handle, extending through an opening of the lock body; a knob catch assembly seated in the spindle; the knob catch assembly comprising a wrap-around catch spring house inside the spindle and seated in an opening of the spindle; and the wrap-around catch spring having a substantially continuously curved segment that extends around an arc that is greater than 180 degrees; wherein release-actuating force imposed on the knob catch assembly compresses the substantially continuously curved segment of the wrap-around catch spring.