Motor vehicles – Bodies – Movable cab or operator's station
Patent
1997-02-28
1999-07-06
Ellis, Christopher P.
Motor vehicles
Bodies
Movable cab or operator's station
29619004, B62D 3306
Patent
active
059186933
ABSTRACT:
An industrial truck has a height-adjustable standing and/or sitting arrangement for an operator and steering hydraulics. The standing and/or sitting arrangement is connected with a hydraulic positioning cylinder, which is connected to the steering hydraulics for the height adjustment of the standing and/or sitting arrangement. The positioning cylinder is connected in parallel with a steering motor and can be acted upon from both sides by the steering hydraulics. An electromagnetically actuatable valve, which can be controlled by a control unit, is disposed in a hydraulic line leading to a positioning space of the positioning cylinder associated with the upward movement of the height adjustment. The control unit prevents height adjustment if another work function is being executed by the industrial truck.
REFERENCES:
patent: 3963132 (1976-06-01), DuFour
patent: 4018473 (1977-04-01), Chalupsky
patent: 4427090 (1984-01-01), Fredriksen et al.
patent: 4463818 (1984-08-01), Sonneborn
patent: 4630700 (1986-12-01), Larsson
patent: 5199193 (1993-04-01), Akiba et al.
patent: 5732370 (1998-03-01), Boyle et al.
Andreoli Gianfranco
Mantovani Guiseppe
Passeri Gianni
Ellis Christopher P.
Fiat Om Carelli Elevatori S. p. a.
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