Machine element or mechanism – Control lever and linkage systems – Multiple controlled elements
Patent
1993-08-12
1995-01-24
Herrmann, Allan D.
Machine element or mechanism
Control lever and linkage systems
Multiple controlled elements
74519, 403356, 403383, G05G 114, B25G 328
Patent
active
053833767
ABSTRACT:
A control structure is provided for the swash plate of a hydraulic transmission pump. The structure is adapted to return the swash plate to its neutral orientation and thereby prevent creep or slight movement in the vehicle when the transmission is returned to neutral. The structure takes the form of a tapered hub adapted to be accurately mounted on a tapered swash plate control shaft and configured to be precisely received in a compatably shaped control lever. The lever, in turn, is actuated by the operator foot pedals and returned to its neutral setting by a V-type neutral cam locator. The hub is produced through a powder metal process and with its unique configuration for being mounted in a lever recess can be utilized with a variety of lever shapes and configurations to permit its use in a variety of vehicles and hydrostatic transmission models.
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O'Toole Frank K.
Swartzendruber James A.
Thorman Christopher S.
Deere & Company
Herrmann Allan D.
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