Continuously variable speed transmission

Details Continuously variable speed transmission Continuously variable speed transmission

1988-09-30

1990-07-03

Diehl, Dwight

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

74867, B60K 4112

Patent

active

049381016

ABSTRACT:
A continuously variable speed transmission comprises a continuously variable speed change mechanism, a ratio control actuator, a controller controlling operational direction and speed of the ratio control actuator, and a speed reduction ratio detection sensor. The controller, in the case of outputting a command to reverse the operational direction of the ratio control actuator, keeps the ratio control actuators actuating at a maximum actuation speed in the reverse operation direction, until the speed reduction ratio detection sensor detects a fact that the speed reduction ratio of the mechanism has changed into the reversed direction after output of the command.

REFERENCES:
patent: 2552604 (1951-05-01), Thoma
patent: 3107490 (1963-10-01), Cooper et al.
patent: 3665788 (1972-05-01), Nyman
patent: 3733931 (1973-05-01), Nyman
patent: 4111074 (1978-09-01), Northup
patent: 4612828 (1986-09-01), Ide et al.
patent: 4653006 (1987-03-01), Osanai
patent: 4682519 (1987-07-01), Okoda et al.
patent: 4693081 (1987-09-01), Nakamura
patent: 4730518 (1988-03-01), Miyawaki
patent: 4782934 (1988-11-01), Takano

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