Truck having a spring suspension

Details Truck having a spring suspension Truck having a spring suspension

1992-11-13

1994-11-29

Focarino, Margaret A.

Land vehicles

Wheeled

Running gear

280702, 280 4318, 280 4323, B60G 1126

Patent

active

053683226

ABSTRACT:
A truck, such as a fork-lift truck, a counterweight truck or equivalent, is disclosed. The truck is provided with one driving axle unit, a steering axle unit, and lifting and load handling equipment. The axle units of the truck are suspended and supported on a frame of the truck by means of a vertically adjustable spring suspension. The spring units of the spring suspension are adjustable between a suspended upper position and a lower position, in which lower position the frame of the truck rests unsuspended on the axle beams of the axle units. The spring units are preferably hydraulic cylinders, each of which communications with a hydropneumatic pressure-accumulator/ check-valve assembly that operates as a spring/shock-absorber unit.

REFERENCES:
patent: 3117800 (1964-01-01), Magnuson
patent: 3439927 (1969-04-01), Ryskamp
patent: 3445122 (1969-05-01), Cadiou
patent: 3528675 (1970-09-01), Brown
patent: 4089544 (1978-05-01), Raidel
patent: 4174854 (1979-11-01), Spicka et al.
patent: 4422667 (1983-12-01), Perry
patent: 4875706 (1989-10-01), Joseph et al.
patent: 4900055 (1990-02-01), Wright
patent: 5135065 (1992-08-01), Kawasaki et al.

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