Torsional snap-fit latch

Details Torsional snap-fit latch Torsional snap-fit latch

1995-10-23

1997-05-13

Meyers, Steven N.

Closure fasteners

Bolts

Spring arm

292DIG38, E05C 1906

Patent

active

056285337

ABSTRACT:
A snap-latch mechanism for releasably connecting two components comprises a male latch member extending from a first component and a female latch frame disposed on a second component. The latch frame defines a passageway through which the latch member is inserted, and the latch member undergoes a torsional deflection as it passes therethrough to achieve locking engagement with the latch frame. The torsional deflection is caused by two oppositely inclined ramp surfaces disposed on the interior of the lock frame to apply a camming action and rotate an enlarged head portion of the latch member as it passes through the passageway. When the head portion has passed completely through the frame, it is released from the ramp surfaces and the latch member returns to its undeformed configuration and is latchingly engaged with the latch frame. In a preferred embodiment, a fulcrum rib disposed on the second component simplifies manual actuation of the latch member back to the twisted configuration to release it from engagement with the latch frame.

REFERENCES:
patent: 4688836 (1987-08-01), Varlet
patent: 5361925 (1994-11-01), Wecke et al.
patent: 5390811 (1995-02-01), Ogino et al.

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