Gear shifting device of a pneumatic transmission

Details Gear shifting device of a pneumatic transmission Gear shifting device of a pneumatic transmission

1994-10-28

1996-05-21

Marmor, Charles A.

Machine element or mechanism

Gearing

Interchangeably locked

192109F, F16H 6100

Patent

active

055178758

ABSTRACT:
A pneumatic transmission for a motor vehicle is provided with a gear shifting device which comprises a first pneumatic cylinder mounted to a housing for moving a shift arm fixed to a shift shaft thereof in predetermined shift positions, and a second pneumatic cylinder mounted to the housing and arranged in a cross relationship with the first cylinder for moving the shift arm in predetermined select positions. The second cylinder includes a selector shaft and a select rod slidably disposed therein in an axially spaced opposite relationship with each other, and select arms extending from ends of the selector shaft and the select rod to converge toward an end portion of the shift arm. A yoke is provided to interlink the select arms with the shift arm so as to move the shift arm in the predetermined select positions through the clockwise and counterclockwise rotation of the shift arm by a linear movement of the selector shaft. The gear shifting device includes a valve assembly for actuating individually the first and the second cylinders.

REFERENCES:
patent: 1612481 (1926-12-01), Welter
patent: 2137939 (1938-11-01), Eaton
patent: 2137953 (1938-11-01), Rowley
patent: 2137961 (1938-11-01), Vorech
patent: 2157592 (1939-05-01), Casler
patent: 2200013 (1940-05-01), Sanford
patent: 2346820 (1944-04-01), Casler et al.
patent: 2432712 (1947-12-01), Bachman et al.
patent: 2451160 (1948-10-01), Eaton
patent: 4718307 (1988-01-01), Yabe et al.
patent: 4928544 (1990-05-01), Markyvech et al.
patent: 5307013 (1994-04-01), Santos et al.
patent: 5450767 (1995-09-01), Willford et al.

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