Machine element or mechanism – Control lever and linkage systems – Elements
Patent
1997-02-25
1999-03-02
Marmor, Charles A.
Machine element or mechanism
Control lever and linkage systems
Elements
74529, G05G 104, B60T 708
Patent
active
058756892
ABSTRACT:
A vehicle parking brake operating mechanism having an arcuately movable brake handle arcuately rotatably mounted on a pin secured to a fixed mounting bracket, a cable reel assembly having a reel section attached to the brake handle and a hub section arcuately rotated on a sleeve bushing which is received on the pin in slidable but non-rotatable relation therewith, and a cable take-up spring in the cable reel assembly reel section having one end attached to that reel section and the other end attached to the a portion of the sleeve bushing which extends through the cable reel section as well as through the cable reel assembly hub section. The bushing is of lesser specific gravity than the pin and primarily withstands only bearing loads from the hub section to the pin and torsional loads exerted by the take-up spring. The pin is subjected to cantilever loads as well as bearing loads. The pin is preferably made of steel while the bushing is made of a suitable plastic or light metal alloy or powdered metal. The bushing may be solidly made or may have indentations in its inner and outer surfaces to make it lighter than it would be when it is solidly made.
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Battista MaryAnn
Boyer Michael K.
Dura Automotive Systems Inc.
Marmor Charles A.
McGraw D. D.
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