Telescoping trailer cover with improved drive and tracking syste

Details Telescoping trailer cover with improved drive and tracking syste Telescoping trailer cover with improved drive and tracking syste

1999-07-14

2000-05-09

Hoge, Gary C.

Land vehicles: bodies and tops

Tops

Load cover

29610004, 29610005, B60P 702

Patent

active

060593490

ABSTRACT:
A telescoping trailer cover assembly has a stationary section (16) and three movable sections (17, 18, 19) coupled in series. The three movable sections (17, 18, 19) are supported on wheels (38) having V-shaped grooves (39) for running along respective tracks (31, 32, 33) having a projecting V-profile. Cam rollers (41) are mounted near the wheels (38) and are positioned to run underneath the tracks (31, 32, 33). A drive system includes a pair of endless loop drive chains (66, 70), which are connected to the rearmost section (19) of the cover assembly (10), with each chain (66, 70) running longitudinally down a respective side of trailer (11). The chains (66, 70) are driven through sprockets (67) mounted on a common drive shaft (55), which in turn is driven by a pneumatic motor (50) through a gear reduction box (51), and a further gear reduction is provided by a pair of drive sprockets (52, 54). The motor (50) operates in one direction to collapse the sections in telescoping fashion and open the cover assembly (10), or in an opposite direction to extend the sections and close the cover assembly (10).

REFERENCES:
patent: 2074358 (1937-01-01), Bixel et al.
patent: 2494013 (1950-01-01), Tapp
patent: 2853340 (1958-09-01), Hershberger
patent: 3910629 (1975-10-01), Woodard
patent: 5203603 (1993-04-01), Hertzberg et al.
patent: 5368396 (1994-11-01), Cantrell
patent: 5516182 (1996-05-01), Aragon et al.

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