Flexible circuit strain relief

Details Flexible circuit strain relief Flexible circuit strain relief

1986-03-25

1988-07-12

Lesmes, George F.

Stock material or miscellaneous articles

Sheet facing and longitudinally noncoextensive with web or...

Sheet smaller in both length and width

174135, 361398, 428 77, 428189, 428209, 428901, 439447, 439449, 439474, B32B 316, H01B 700, H05K 100

Patent

active

047569409

ABSTRACT:
A strain relief system for flexible circuits has a tapered cover laminate affixed to either side of the flexible circuit to form a cover laminate/flexible circuit assembly, with the widest portion of the cover laminate being at the point of maximum bending stress of the flexible circuit to provide a stiffer assembly at that point. A rigid stiffener having a bending radius also is affixed to either side of the cover laminate/flexible circuit assembly at the point of maximum bending stress to provide strain relief, the bending radii being laterally offset from each other so that bending in opposite directions occurs at different locations of the flexible circuit. The result is a gentle, low stress bend in the flexible circuit when subjected to regular bending.

REFERENCES:
patent: 2951112 (1960-08-01), Dahlgren
patent: 4338149 (1982-07-01), Quaschen
patent: 4503285 (1985-03-01), Darms et al.

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