Patent ID: 7506559
Filing Date: 2009-03-24
Classification: B60K,F16H,Y10T

Abstract:
1. A power transmission assembly for use in a motor vehicle, comprising: a first rotary member; a second rotary member; and a shift mechanism for coupling said first and second rotary members, said shift mechanism including a shift sleeve driven by said first rotary member and moveable between a first position released from coupled engagement with said second rotary member and a second position engaging said second rotary member, a shift rail slidably supported in a housing, a shift fork slidably supported on said shift rail and engaging said shift sleeve, a power-operated shift actuator, a first biasing member disposed between said shift actuator and a first end of said shift rail for selectively biasing said shift rail in a first direction, a second biasing member disposed between said shift rail and said housing for biasing said shift fork in a second direction, and a plunger axially moveable in response to actuation of said shift actuator and operably located between said shift rail and said first biasing member, wherein said first biasing member is a coil spring disposed between said shift actuator and said plunger and operable for biasing said plunger into engagement with said shift rail upon actuation of said shift actuation.