Door knob and door knob catch arrangement

Details Door knob and door knob catch arrangement Door knob and door knob catch arrangement

1985-10-11

1987-01-27

Raduazo, Henry E.

Closure fasteners

Knob-attaching devices

Sliding

29216923, 403 11, 403328, E05B 300

Patent

active

046390260

ABSTRACT:
The arrangement comprises a standard, door knob-operated, latch mechanism in which the cylindrical shank of the door knob is slidably engaged with the rotatable spindle of the mechanism, and the spindle has a spring-biased catch projecting therethrough which passes into a slot formed in the cylindrical shank of the knob. In this way, the knob is secured on the shank. The improvement comprises forming a ramp in a cut-out on the terminal or outermost end of of the cylindrical shank, and forming a complimentary bevel on a corner of the projecting catch. Accordingly, when the knob is slidably forced onto its spindle, during manufacturing assembly, the ramp formed in the cut-out engages the bevel and, consequently, depresses the catch to allow the cylindrical shank to slide thereupon and thereover, and to allow the catch latchingly to engage the slot.

REFERENCES:
patent: 2801123 (1957-07-01), Kubik
patent: 2842389 (1958-07-01), Muttart
patent: 3091490 (1963-05-01), Williams
patent: 3832075 (1974-08-01), Arai
patent: 4437695 (1984-03-01), Foshee

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