Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1987-12-17
1989-04-18
Herrmann, Allan D.
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
74336R, 74473R, 74475, B60K 4104
Patent
active
048216070
ABSTRACT:
A shift actuator in an automatic shift mechanism of a geared transmission for an automotive vehicle includes a shift rod mounted in a casing so as to slide freely in mutually opposing directions and coupled to a fork shaft to acutate the same by sliding in either of the directions, thereby effecting a gear shift, actuating means attached to the shift rod for urging the shift rod in either of the directions by hydraulic pressure switched by a changeover valve, and a CPU for switching the changeover valve. Hydraulic pressure is switchingly applied to the actuating means by the changeover valve in response to a command from the CPU, thereby urging the shift member coupled to the fork shaft in the shift direction intended. As a result, when synchronization with the rotational speed of the engine is achieved, the fork shaft automatically slips into in a desired shift postion.
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Aisin Seiki Kabushiki Kaisha
Herrmann Allan D.
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