Machine element or mechanism – Control lever and linkage systems – Multiple controlled elements
Patent
1978-08-28
1980-01-08
Krizmanich, George H.
Machine element or mechanism
Control lever and linkage systems
Multiple controlled elements
74530, 180271, G05G 500
Patent
active
041821955
ABSTRACT:
A lock assembly (10) selectively moves and/or maintains a transmission shift control (11) at a neutral position for preventing inadvertent shifting of the transmission. A lever (13) of the transmission shift control (11) is movable in an arcuate pathway between forward and reverse drive positions and through a neutral position intermediate the forward and reverse drive positions. A crank (23) has first and second lever engaging portions (28,29) on a member (27) which is rotatable between a first position at which the lever (13) is free to move between the first and second positions and a second position at which the lever engaging portions (28,29) engage and maintain the lever (13) at the neutral position.
REFERENCES:
patent: 3054302 (1962-09-01), Cone
patent: 3480120 (1969-11-01), Lenzen et al.
patent: 3523588 (1970-08-01), Bradshaw
patent: 3811020 (1974-05-01), Johnson et al.
Caterpillar Tractor Co.
Grant John W.
Krizmanich George H.
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