Automated pivotable cargo box extensions

Details Automated pivotable cargo box extensions Automated pivotable cargo box extensions

1993-04-27

1995-07-04

Pape, Joseph D.

Land vehicles: bodies and tops

Bodies

Top boards

296 26, 296 10, 296 98, B62D 3308

Patent

active

054294037

ABSTRACT:
An extension assembly having a pair of extension members which are pivotally mounted atop cargo box sidewalls. The extension members are automatically raised and lowered by pneumatic actuators having extendable and retractable rams. A roller arrangement is coupled with the extension members to vertically move and stabilize a roll-up tarpaulin apparatus and associated end-caps therewith. The roller arrangement moves in uniform cooperation with the pivoting extension members. Further, the extension members are laterally supported in the raised position by a plurality of horizontally spaced-apart supports which are pivotally connected to the extension members. The supports are pivotally connected to sliding collars mounted around trusses which laterally transverse the cargo box. During the raising operation, the sliding collars contact stoppers affixed to the trusses whereby the extension members are securely held in a vertically raised position. Thus, lateral support and pivotal motion of the extension members are firmly established upon the cargo box's lateral support structure.

REFERENCES:
patent: 3317239 (1967-05-01), Tantlinger
patent: 3861737 (1975-01-01), Kirkbride
patent: 4095838 (1978-06-01), Beeler
patent: 4206943 (1980-06-01), Friedenberg
patent: 4302044 (1981-11-01), Sims
patent: 4613182 (1986-09-01), Stone
patent: 4703971 (1987-11-01), Schmeichel et al.
patent: 4842317 (1989-06-01), Moore
patent: 4887860 (1989-12-01), Dowty
patent: 5056859 (1991-10-01), Walder
patent: 5110021 (1992-05-01), Dawson, Jr.

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