Pothole protection mechanism for a lifting device

Details Pothole protection mechanism for a lifting device Pothole protection mechanism for a lifting device

1997-01-31

1999-04-06

English, Peter C.

Land vehicles

Wheeled

Attachment

2807641, 182141, 187243, 212305, 212196, B60R 2113, E04G 122

Patent

active

058907378

ABSTRACT:
A mechanism for preventing tipping of a lifting device having a main frame supported by a plurality of ground engaging support elements and a lifting element raisable and lowerable with respect to the main frame, the mechanism comprising a subframe mounted on the main frame and extending thereunder and intermediately disposed between all of the support members, and a parallel linkage mechanism for raising and lowering the subframe with respect to the ground in response to the lowering and raising of the lifting element respectively.

REFERENCES:
patent: 2408500 (1946-10-01), West
patent: 2759563 (1956-08-01), Marnon et al.
patent: 4175644 (1979-11-01), Sikli
patent: 4401408 (1983-08-01), Gibert
patent: 5439343 (1995-08-01), Watson
patent: 5685563 (1997-11-01), Ottestad
Skyjack SJII Series . . . the new generation brochure. Jan. 1996.
Skyjack SJM Series. Mini Work Platform. Jan. 1996.

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