Articulated aerial work platform system

Details Articulated aerial work platform system Articulated aerial work platform system

1996-01-26

1999-06-22

Chin-Shue, Alvin

Fire escape, ladder, or scaffold

Means maintaining platform level on angularly movable support

Swingable support

182 21, 182 696, B66F 1104

Patent

active

059133791

ABSTRACT:
An articulated aerial platform system having a lift assembly including an upper parallelogram riser and a lower parallelogram riser. The upper and lower risers are raised and lowered by a single riser cylinder mounted between a base of the system and the upper riser. Relative pivoting motion of the upper and lower risers is controlled by a timing link interconnecting the upper and lower risers. A work platform mounted at the end of a jib pivotally connected to a telescoping boom pivotally connected to the upper riser is leveled for boom motion by operation of a master cylinder and slave cylinder arrangement. The slave cylinder is disposed in a generally vertical position. A jib cylinder actuating motion of the jib is connected across the diagonal of the jib.

REFERENCES:
patent: 3190391 (1965-06-01), Hoard
patent: 3834488 (1974-09-01), Grove
patent: 5584356 (1996-12-01), Goodrich

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