Transmission shift mechanism having insert molded crank arm

Metal working – Method of mechanical manufacture – Gear making

Reexamination Certificate

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Details

C029S893100, C029S893200, C029S893330, C029S893360, C029S893370, C029S458000, C029S527100, C074S473100, C264S279000, C264S279100

Reexamination Certificate

active

07621047

ABSTRACT:
A transmission shift mechanism for use with a vehicle transmission. The transmission shift mechanism includes a user-operated selector and a sub-assembly operably disposed between said user-operated selector and the vehicle transmission. The sub-assembly includes a torque-transfer member having a first portion and a second portion wherein the first portion is pivotally secured to the transmission shift mechanism about a pivot axis and the second portion defines a section of a substantially spherical surface which is engageably disposed within a non-linear camming slot defined by the transmission shift section. The torque-transfer member takes the form of a molded polymeric body with a sheet metal insert disposed within the molded polymeric body. The second portion of the torque-transfer member may include flats to reduce the volume of polymeric material required in the manufacture of the member. A method of manufacturing such a torque-transfer member or crank arm is also disclosed.

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U.S. Appl. No. 11/586,132, Assembly With Metal Casting and Polymeric Member and Transmission Shift Mechanism . . . ; Filing Date Oct. 25, 2006; Inventor: Michael C. Vermeersch.

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