Automatic underride protection for tilt trailers

Details Automatic underride protection for tilt trailers Automatic underride protection for tilt trailers

1998-01-27

2000-04-25

Hess, Douglas

Material or article handling

Self-loading or unloading vehicles

With load-receiving portion, or significant section thereof,...

414484, 414485, B60P 100

Patent

active

060536918

ABSTRACT:
An automatic underride protection actuator for a trailer, where the trailer has a forward end and an opposed rearward end and has a tiltable bed supported by a trailer frame, the tiltable bed being tiltable with respect to the trailer frame between a transport disposition and a load/unload disposition, the tiltable bed presenting a trailer rear margin, a rotatable ramp being operably coupled to the tiltable bed proximate the trailer rear margin, the automatic underride protection actuator including an actuation apparatus. The actuation apparatus is operably coupled to the trailer frame and to the rotatable ramp, the actuation apparatus acting to rotate the rotatable ramp between a ground engaging load/unload disposition when the tiltable bed is in the load/unload disposition and an underride protection disposition when the tiltable bed is in the transport disposition. The actuation apparatus is actuated by the tilting motion of the tiltable bed as the tiltable bed transitions between the transport disposition and the load/unload disposition. The ramp underride protection disposition is a disposition in which the ramp depends from the tiltable bed.

REFERENCES:
patent: 2452681 (1948-11-01), Rehberger
patent: 2919825 (1960-01-01), Hornsby
patent: 3066816 (1962-12-01), Schwartz
patent: 3550801 (1970-12-01), Larson et al.
patent: 4305694 (1981-12-01), Chan
patent: 4516902 (1985-05-01), Matson
patent: 5022703 (1991-06-01), Westbrook
patent: 5195764 (1993-03-01), Schantz et al.
patent: 5215426 (1993-06-01), Bills, Jr.
patent: 5667231 (1997-09-01), Dierks et al.

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