초록 ▼

A roll-off trailer or truck bed for hauling cargo includes a cargo controlling mechanism that allows for the controllable removal of the cargo. The roll-off trailer characteristically includes a plurality of rotatable rollers disposed transverse to the longitudinal length of the trailer. The cargo c

A roll-off trailer or truck bed for hauling cargo includes a cargo controlling mechanism that allows for the controllable removal of the cargo. The roll-off trailer characteristically includes a plurality of rotatable rollers disposed transverse to the longitudinal length of the trailer. The cargo controlling mechanism includes a brake mechanism preferably associated with at least several of the plurality of rollers. When actuated, the brake mechanism retards, stops, or nonrotatably restrains rotational movement of the rollers in order to slow down or stop the off-loading of the cargo. Actuation of the brake mechanisms may be accomplished through hydraulic, electric, pneumatic, mechanical, or other means. Each brake mechanism may be separately controlled by the operator in order to selectively retard the rotation of the desired roller. Alternatively, a number of brake mechanisms may be linked together to constitute a group. A control assembly regulates the brake mechanisms of the group. Furthermore, several groups may be separately controlled through the control assembly.

대표청구항 ▼

An apparatus for controlling the unloading of cargo from a truck trailer, the apparatus comprising: a plurality of elongate rollers each having an integral shaft defining an axis of rotation, and rotatably coupled to the trailer by said shafts such that said axis of rotation is transverse to the lon

An apparatus for controlling the unloading of cargo from a truck trailer, the apparatus comprising: a plurality of elongate rollers each having an integral shaft defining an axis of rotation, and rotatably coupled to the trailer by said shafts such that said axis of rotation is transverse to the longitudinal length of the trailer, said plurality of rollers substantially extending the transverse length of the trailer; a control unit adapted to provide an actuation signal; and a brake mechanism coupled to selected shafts of said plurality of rollers, each said brake mechanism including a brake actuator in communication with said control unit and adapted to receive said actuation signal, said brake mechanism operable to retard rotational movement of said roller when said brake mechanism is actuated by said brake actuator in response to said actuation signal, said brake mechanism further including a brake drum coupled to one end of said shaft so as to rotate with said roller, and a first brake pad at least partially radially surrounding said brake drum, said first brake pad normally biased into a first position wherein said first brake pad is radially spaced from said brake drum such that said brake drum and said roller are freely rotatable, said first brake pad actuatable by said brake actuator into a second position in response to said actuation signal such that said first brake pad radially engages said brake drum causing said roller to be rotationally retarded by friction.