Straddle carrier with power steering

Details Straddle carrier with power steering Straddle carrier with power steering

2007-12-25

2007-12-25

Morris, Lesley D. (Department: 3611)

Motor vehicles

Steering gear

No mechanical connection between steering shaft and steering...

C180S403000, C180S417000, C180S443000

Reexamination Certificate

active

11067781

ABSTRACT:
A steering system for a straddle carrier includes two side supports with steerable wheels, braces, a hoisting gear, an an upper frame. An operator's cab having a steering wheel is disposed at the upper frame. A servo motor with an inverter is mounted in operative connection with the steering wheel and that operates in four quadrants. The servo motor steers the wheels of the straddle carrier using a steering computer, hydraulic proportional valves, control cylinders, and potentiometers on the side supports.

REFERENCES:
patent: 4457389 (1984-07-01), Voelz
patent: 6076627 (2000-06-01), Bohner et al.
patent: 6206127 (2001-03-01), Zakula et al.
patent: 6269903 (2001-08-01), Bohner et al.
patent: 6594569 (2003-07-01), Yasuda
patent: 6693405 (2004-02-01), Blanke et al.
patent: RE38632 (2004-10-01), Schmidt et al.
patent: 203 11 886 (2003-11-01), None

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