초록

A loading device and method hydraulically support or move rollers, in order to deal with loading unloading bulky or heavy objects, such as a boat from a trailer.

대표청구항 ▼

1. A loading device comprising: a) the loading device having a retracted position and a usable position;b) the loading device comprising a housing, an adjustable wheel assembly, and a wheel adjusting device;c) the adjustable wheel assembly including at least one wobble roller;d) the at least one wob

1. A loading device comprising: a) the loading device having a retracted position and a usable position;b) the loading device comprising a housing, an adjustable wheel assembly, and a wheel adjusting device;c) the adjustable wheel assembly including at least one wobble roller;d) the at least one wobble roller having an axle, the axle having at least one first end;e) the adjustable wheel assembly being substantially contained within the housing when the loading device is in the retracted position;f) the housing having a top platform, a bottom platform, and at least one side platform, with the top platform being oppositely disposed from the bottom platform, and the side platform extending between the top platform and the bottom platform;g) the side platform having a primary axis extending along the length of the side platform;h) the top platform including a top-platform opening for each of the at least one wobble roller;i) the at least one wobble roller being extendible above the top platform through the top-platform opening to achieve the usable position of the loading device;j) the side platform including at least one side-platform slot, the side-platform slot having a primary axis extending from the top platform to the bottom platform and being substantially perpendicular to the primary axis of the side platform;k) the side-platform slot on the side platform receiving the at least one first end of the axle;l) the side-platform slot engaging with the at least one first end of the axle to limit the range of motion for the axle to a substantially upward motion along the axis of the slot towards the top platform of the housing, and a substantially downward motion along the axis of the slot towards the bottom platform of the housing;m) the wheel adjusting device including at least one lift slide rail contained within the housing and engaged with the axle of the at least one wobble wheel;n) the at least one lift slide rail comprising at least one lowered edge, at least one incline edge, and at least one raised edge;o) the incline edge being contiguous with the lowered edge and raised edge;p) the at least one lift slide rail being laterally movable in a forward motion and a rearward motion, such that the axle can be successively engaged with the lowered edge, the incline edge, and the raised edge of the at least one lift slide rail;q) the lowered edge being at a level such that when the axle is engaged with the lowered edge, the wobble roller is in the lowered retracted position;r) the raised edge being at a level such that when the axle is engaged with the raised edge, the wobble roller is in the raised useable position;s) the axle being engaged with the incline edge permitting the forward lateral movement of the at least one lift slide rail causing the axle to be lifted upward in the slot, within the limited range of motion, until the axle reaches the raised edge; andt) the axle being engaged with the incline edge permitting the rearward lateral movement of the at least one lift slide rail causing the axle to be lowered downward along the slot, within the limited range of motion, until the axle reaches the lowered edge. 2. The loading device of claim 1, further comprising: a) the adjusting device including a hydraulic assembly;b) the hydraulic assembly being connected to the at least one lift slide rail; andc) the hydraulic assembly cooperating with the at least one lift slide rail to laterally move the at least one lift slide rail in either a forward motion or a rearward motion. 3. The loading device of claim 2, further comprising: a) a hydraulic assembly positioned at a first end of the housing;d) at least one end roller being positioned at a second end of the housing;e) the at least one end roller being oppositely disposed from the hydraulic connection. 4. The loading device of claim 3, further comprising: a) a c-clip on the first end of the axle; andb) the c-clip permitting the axle to move in or about the side-platform slot. 5. The loading device of claim 3, further comprising the at least one lift slide being a first lift slide and a right lift slide.