Upright assembly for fork lift truck

Details Upright assembly for fork lift truck Upright assembly for fork lift truck

1990-02-21

1991-09-10

Valenza, Joseph E.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

187 95, B66B 920

Patent

active

050465856

ABSTRACT:
An upright assembly for a fork lift truck is disclosed in which the assembly comprises an outer mast of U-shaped cross-section and an inner mast also of U-shaped cross-section that is received in the space within the outer mast. In order to keep the overall height of the upright assembly low, and to keep sliding resistance between the masts small, the inner mast is supported by an inner mast roller to counter the large forward moments and the inner mast is supported by liners to counter the small rearward moments.

REFERENCES:
patent: 2888300 (1959-05-01), Curtis et al.
patent: 2936047 (1960-05-01), Quayle
patent: 4307792 (1981-12-01), Benson et al.
patent: 4921075 (1990-05-01), Schumacher et al.

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