Machine element or mechanism – Control lever and linkage systems – Multiple controlled elements
Patent
1982-04-30
1984-04-24
Herrmann, Allan D.
Machine element or mechanism
Control lever and linkage systems
Multiple controlled elements
74365, 74526, 74569, 74475, 192 84R, F16H 308, F16H 5306, G05G 104, B60K 2000
Patent
active
044440723
ABSTRACT:
A shift mechanism for a two-speed countershaft type transmission is operable to move the shift rail in response to a rotary input drive motor. The shift mechanism includes a control mechanism which ensures that the rotation of the drive motor will stop when the neutral position is effected during a gear interchange prior to completion of a shift so that normal gear synchronizing will occur. The control mechanism includes a rotatable plate having a slotted portion which includes stop surfaces at the neutral position. The stop surfaces are engaged during gear interchange by a pin member which must be selectively moved prior to completion of the gear interchange. Selective movement of the pin member is controlled by a solenoid mechanism.
REFERENCES:
patent: 2477589 (1949-08-01), Du Shane
patent: 2755679 (1956-07-01), Nallinger
patent: 2774251 (1956-12-01), Price
patent: 3130596 (1964-04-01), Gorski
patent: 3463027 (1969-08-01), Gelb
patent: 3770924 (1973-11-01), Hipple et al.
patent: 3945477 (1976-03-01), Maucher et al.
Grimes Michael P.
Vukovich William J.
General Motors Corporation
Herrmann Allan D.
Scherer Donald F.
Wojciechowski Bruce F.
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