Level lift trailer with detachable cargo bed

Abstract

An open center trailer with spring suspended axels which straddle a detached cargo bed, which was loaded on the ground, said trailer level lifts the cargo bed by pulling said cargo bed up its channel ramps to an elevated transport height, and consequently level lowers and detaches from this load bed at another location. This load may be a cargo utility platform, or an enclosed cargo box, or a horse traveling compartment, or a dump bed, or a highway light, or a traffic speed sign.

1 . A detachable level lifting trailer system comprising:
 a frame designed to receive a detachable cargo bed;   a detachable cargo bed designed to mate with the frame; and   an interface between the fame and the detachable cargo bed including a channel comprising at least two horizontal sections at different heights and a roller wherein the channel has an open end to allow the roller to escape the channel.   
     
     
         2 . The detachable level lifting trailer system of  claim 1 , further comprising a second roller. 
     
     
         3 . The detachable level lifting trailer system of  claim 2 , wherein the roller is at a different height than the second roller. 
     
     
         4 . The detachable level lifting trailer system of  claim 1 , wherein the roller is located at the rear end of the frame. 
     
     
         5 . The detachable level lifting trailer system of  claim 1 , wherein the roller is located at the front end of the cargo bed. 
     
     
         6 . The detachable level lifting trailer system of  claim 1 , wherein the channel is located on the frame. 
     
     
         7 . The detachable level lifting trailer system of  claim 1 , wherein the channel is located on the cargo bed. 
     
     
         8 . The detachable level lifting trailer system of  claim 6 , wherein the open end of the channel is located on a rear end of the frame. 
     
     
         9 . The detachable level lifting trailer system of  claim 7 , wherein the open end of the channel is located on a front end of the cargo bed. 
     
     
         10 . The detachable level lifting trailer system of  claim 1 , further comprising a second interface. 
     
     
         11 . The detachable level lifting trailer system of  claim 8 , wherein the second interface is located proximate to an opposite side of the trailer system. 
     
     
         12 . The detachable level lifting trailer system of  claim 1 , wherein a first roller is sized to fit into a first channel, and the second roller is sized to fit into a second channel. 
     
     
         13 . A detachable level lifting trailer system comprising:
 a trailer, wherein said trailer comprises a framed structure with an open end and an open space in the center;   a cargo bed sized to fit into said open space;   a roller rotatably disposed on the trailer; and   a channel disposed on the cargo bed wherein the channel includes two horizontal sections at different heights and an open end designed to receive the roller.   
     
     
         14 . The detachable level lifting trailer system of  claim 13 , further comprising a second roller. 
     
     
         15 . The detachable level lifting trailer system of  claim 13 , wherein a first roller is at a different height than the second roller. 
     
     
         16 . The detachable level lifting trailer system of  claim 13 , wherein the roller is located at the rear end of the trailer. 
     
     
         17 . The detachable level lifting trailer system of  claim 13 , wherein the open end of the channel is located at the front end of the cargo bed. 
     
     
         18 . An interface between a cargo bed and a frame, wherein the interface comprises:
 a roller disposed on one opposing side of the interface; and   a horizontal channel disposed on a receiving side of the interface opposite from the roller, where the channel has an open end to allow the roller to leave the channel.