Closure fasteners – Bolts – Hooked end
Patent
1998-12-15
2000-06-27
Pham, Teri
Closure fasteners
Bolts
Hooked end
292 95, 292202, 521278, 521279, 5212711, E05C 1910
Patent
active
060797541
ABSTRACT:
A latching assembly, such as for use in assembling and disassembling mating foamed insulating panels, may have housing components of inexpensive materials such as cellulosic or non-structural plastic materials. A cam shaft passes through an opening in a latch, the cam shaft mounting a cam keeper which has its peripheral surface engaged by a friction clutch (e.g. a cantilevered tongue) which supplies a radial or axial spring force from the exterior of the cam keeper to provide high level of predictable friction force. The cam shaft, and a latching pin for cooperation with hook portion of the latch, are mounted by metal or structural plastic flanges which engage the inexpensive housing components. An external clutch, such as a spring tab integral with the second metal or structural plastic flange, maintains the position of the cam shaft with respect to the flange unless the cam shaft is positively rotated.
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Conventional Cam-Lock Construction, admitted prior art.
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