US 6,981,726 B2
Easily disassembled structure of an auxiliary lock
Tsung-Chung Huang, Min-Hsiung (Taiwan)
Assigned to Tong Lung Metal Industry Co., Ltd., Chiayi (Taiwan)
Filed on Jan. 16, 2004, as Appl. No. 10/759,587.
Claims priority of application No. 92200997 U (TW), filed on Jan. 17, 2003.
Prior Publication US 2004/0145192 A1, Jul. 29, 2004
Int. Cl. E05B 3/00 (2006.01)
U.S. Cl. 292—350 9 Claims
OG exemplary drawing
 
1. An auxiliary lock assembly comprising:
a housing having a hole and a protrusion radially and inwardly formed on a periphery of the hole;
a shaft having various cross-sectional areas, the shaft being adapted to be inserted into the hole of the housing;
a longitudinal groove formed on an exterior of the shaft;
a circumferential groove formed on the exterior of the shaft, the circumferential groove being in communication with the longitudinal groove to provide engagement with the protrusion on the housing;
an axial hole axially formed in the shaft;
a cover having a hole aligned with the hole of the housing for allowing the shaft to pass therethrough;
a knob having an axle portion;
an axial hole axially formed in the knob for allowing the shaft to be inserted therein;
a threaded hole transversely formed in the axle portion of the knob; and
a screw being adapted to be screwed into the threaded hole of the axle portion of the knob to fasten the shaft with the knob.