US 6,981,833 B2
Work vehicle with dual mode unloader apparatus and method
Quentin L. Guhr, East Moline, Ill. (US); John F. Link, Calumet City, Ill. (US); and Jay D. Schroeder, Coal Valley, Ill. (US)
Assigned to CNH America LLC, Racine, Wis. (US)
Filed on Jul. 19, 2002, as Appl. No. 10/199,819.
Prior Publication US 2004/0013506 A1, Jan. 22, 2004
Int. Cl. B60P 1/00 (2006.01)
U.S. Cl. 414—312 23 Claims
OG exemplary drawing
 
1. A work vehicle comprising:
a main body
an unloader member movably mounted on the main body, the unloader member being movable between first and second end positions and to positions therebetween; and
a control system coupled to the unloader member, the control system including a first and second control switch,
the control system being operative in a latched first mode wherein movement of the unloader member in a first direction is started when the first control switch is first actuated and movement is stopped when the first control switch is again actuated, or when the second control switch is first actuated, and
the control system being operative in an unlatched second mode wherein movement of the unloader member is started when the first control switch is actuated to an actuated state and movement stops when the actuated state of the first control switch is removed.