Dual lever control mechanism
AssigneeCaterpillar Tractor Co.
InventorRobert Eugene Utter
Life of this patent
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Abstract
A dual lever control mechanism is disclosed for actuating a pair of control devices individually having first and second modes of operation, including a stationary support, a first lever arrangement pivotally mounted on the support for selectively moving both of the control devices into either their first modes of operation or their second modes of operation for effecting simultaneous coordinated movement thereof, and a second lever arrangement pivotally mounted on the support and cooperatively coupled with a portion of the first lever arrangement for selectively moving both of the control devices respectively into either their first and second modes of operation or their second and first modes of operation for effecting simultaneously opposite coordinated movement thereof.
Claims7
A dual lever control mechanism, including a first control lever and a second control lever for actuating a pair of control devices individually having first and second modes of operation, comprising:
- a stationary support having the control levers pivotally connected thereto;
- first means including an intermediate actuating element pivotally connected to said first control lever and cooperatively engaged with said second control lever for selectively moving both of the control devices into either their first modes of operation of their second modes of operation and effecting simultaneous coordinated movement of the control devices in the same travel direction in response to movement of the first control lever;
- and
- second means cooperatively couple with said first means of selectively moving both of the control devices respectively into either their first and second modes of operation or their second and first modes of operation and effecting simultaneously coordinated movement of the control devices in opposite travel directions in response to movement of the second control lever, said second means having defined therein profiled aperture means for selectively coupled engagement with said actuating element, said mechanism being of a construction such that selective movement of said first control lever and said actuating element is free from transmission to said second control lever and selective movement of said second control lever is transmitted to said actuating element free from transmission to said first control lever and movement of one of said control levers is independent of movement of the other one of said control levers.
Dependencies are inferred from the claim text.