Machine element or mechanism – Control lever and linkage systems – Multiple controlled elements
Patent
1976-04-05
1977-05-10
Herrmann, Allan D.
Machine element or mechanism
Control lever and linkage systems
Multiple controlled elements
74476, 74491, 200 6188, 335206, G05G 912, H01H 900
Patent
active
040220788
ABSTRACT:
A manually operable shift control mechanism operatively connected with a transmission through an electro-hydraulic control circuit for selectively establishing one of a plurality of speed ratios in the transmission, the control mechanism including a pivoted lever angularly movable between successively arranged positions for establishing one of the speed ratios in the transmission, and a detent device coacting with detent cut-outs on a control plate for releasably maintaining the lever in each of the transmission settings and affording a distinct "feel" to the operator for each transmission setting, as well as an electric circuit board on the control plate operatively interconnected with the transmission control circuit, with the circuit board being provided with a plurality of spaced electric proximity switches that are activated by a magnet means carried by a pivot arm member movable with the lever.
REFERENCES:
patent: 1709169 (1929-04-01), Froesch
patent: 2360496 (1944-10-01), Hill
patent: 3106198 (1963-10-01), Hansen
patent: 3162738 (1964-12-01), Abramson et al.
patent: 3177737 (1965-04-01), Williams et al.
patent: 3372606 (1968-03-01), McGrath et al.
patent: 3570636 (1971-03-01), Franz et al.
patent: 3863520 (1975-02-01), Moline et al.
patent: 3906813 (1975-09-01), Webber
Clark Equipment Company
Herrmann Allan D.
Ruf Ernst H.
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