초록 ▼

An elongated hydraulically foldable and elevationally adjustable ramp connectable to a draft vehicle and including leading and trailing ramp sections that are pivotally joined and foldable between an inclined loading position and an upright traveling position, and a ground-bearing pad pivotally conn

An elongated hydraulically foldable and elevationally adjustable ramp connectable to a draft vehicle and including leading and trailing ramp sections that are pivotally joined and foldable between an inclined loading position and an upright traveling position, and a ground-bearing pad pivotally connected and depending freely from the ramp at a position forward its center of gravity, such that upon activation of a hydraulic cylinder extending between the trailing and leading ramp sections when in loading position, the ground-bearing pad engages the ground and causes the forward end of the leading ramp section to elevate above the bed level of the trailer to facilitate mounting and removal of the ramp therefrom. The hydraulics for the ramp are self-contained on the ramp for independent operation and positional control without connection to an external source.

대표청구항 ▼

1. An elevationally adjustable ramp which, by interior adjustment, is capable of facilitating mounting and disconnection thereof relative to a draft vehicle, comprising:(a) an elongated ramp having a forward end portion and a rear end portion, said forward end portion being constructed and arranged

1. An elevationally adjustable ramp which, by interior adjustment, is capable of facilitating mounting and disconnection thereof relative to a draft vehicle, comprising:(a) an elongated ramp having a forward end portion and a rear end portion, said forward end portion being constructed and arranged to be pivotally connected to the draft vehicle in readily removable relation thereto; (b) a generally vertically extending ground-bearing member carried by said ramp and depending freely therefrom in gravitationally positionable supporting relation thereto when said ramp rests in an inclined loading position relative to such a draft vehicle; (c) a hydraulically controlled adjustment means connected to said ramp for causing elevational adjustment of said forward end portion of said ramp relative to such a draft vehicle to facilitate mounting of said ramp to, and disconnection of said ramp from, such a draft vehicle; (d) hydraulic control means carried by said ramp and connected thereto in controlling relation for controlling pivotal movement of said ramp between an inclined loading position and a substantially upright traveling position when connected to such a draft vehicle; and (e) a hydraulic power source mounted on said ramp and controllably connected to said hydraulic adjustment means and said hydraulic control means for providing interior self-contained operational hydraulic control of said ramp.