Shift control mechanism for a multi-speed countershaft transmiss

Details Shift control mechanism for a multi-speed countershaft transmiss Shift control mechanism for a multi-speed countershaft transmiss

1994-07-25

1996-10-01

Marmor, Charles A.

Machine element or mechanism

Control lever and linkage systems

Multiple controlled elements

74477, 74527, 267150, B60K 4126

Patent

active

055602541

ABSTRACT:
A neutral-reverse shift control actuator is provided in a countershaft transmission. The actuator is operatively connected through a resilient detent mechanism to a forward shift control mechanism. During a neutral-reverse shift maneuver, the drive connection partially manipulates the forward synchronizer, such that synchronization between the input and output shaft is achieved during a reverse shift maneuver. During a five-six or six-five shift, a detent structure is available to reduce the 3-4 neutral force of the centering spring in the shift control mechanism.

REFERENCES:
patent: 1830797 (1931-11-01), Lapsley
patent: 4377951 (1983-03-01), Magg et al.
patent: 4561321 (1985-12-01), Yarnell
patent: 4605109 (1986-08-01), Fukuchi et al.
patent: 4666023 (1987-05-01), Achberger et al.
patent: 5038632 (1991-08-01), Watson
patent: 5146806 (1992-09-01), Doster et al.
patent: 5191806 (1993-03-01), De Silvestri
patent: 5272931 (1993-12-01), Daniel
patent: 5385223 (1995-01-01), Certeza

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