Machine element or mechanism – Control lever and linkage systems – Multiple controlled elements
Patent
1987-12-30
1989-01-17
Staab, Lawrence
Machine element or mechanism
Control lever and linkage systems
Multiple controlled elements
74484R, 74487, 180332, 180333, B62D 1104, G05G 900
Patent
active
047980990
ABSTRACT:
In order to more easily control movement of a vehicle such as a tractor, an operator's left hand can twist a directional actuating member or a juxtaposed speed actuating member about an outstanding axis. These actuating members are rotatably mounted on a tiller arm extending radially from a housing assembly so that the operator can simultaneously use the actuating members and steer the vehicle by pushing or pulling the tiller arm and rotating the housing assembly in the desired direction about an upstanding axis. Push-pull controls are associated with each actuating member and protected within the housing assembly. A bearing assembly guidably supports and permits relative angular movement of each of the push-pull controls to prevent twisting thereof when the housing assembly is rotated.
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Alexander George F.
Coutant Alan R.
Fee David M.
Riediger Craig W.
Caterpillar Inc.
Lanchantin, Jr. Charles E.
Staab Lawrence
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