Manually guided vehicle capable of working on rails

Abstract

A manually guided vehicle capable of working on rails is described. The manually guided vehicle has a frame, a set of moving wheels, a guiding wheel, and a supporting device. The moving wheels provide the manually guided vehicle with the capability of moving on rails or on the ground. The guide wheel provides the manually guided vehicle with the capability of moving along rails. The guide wheel can be raised to move the manually guided vehicle off of the rails directly. The supporting device provides double direction forking and horizontal rotating capabilities. The rails include a U-type guiding rail to limit the guide wheel to motion thereon. The manually guided vehicle further has a laser pointer to indicate the position of the manually guided vehicle and further cooperates with position labels stuck on working stations along the rail to enhance the parking position accuracy of the manually guided vehicle.

What is claimed is:  
     
         1 . A manually guided vehicle capable of working on rails, the manually guided vehicle comprising: 
 a frame;    a handle disposed on a rear side of the frame for ease of operation;    a set of moving wheels providing the manually guided vehicle a capability of moving on rails or ground, wherein the rails comprise a U-type guiding rail;    a guide wheel clamping on the U-type guiding rail to limit the manually guided vehicle to moving along the rails; and    a supporting device disposed above the frame,    wherein the supporting device is capable of double side forking.    
     
     
         2 . The manually guided vehicle of  claim 1 , wherein the supporting device further comprises a telescopic fork providing the double side forking capacity for the supporting device.  
     
     
         3 . The manually guided vehicle of  claim 2 , wherein the supporting device further comprises a turntable to allow the supporting device to turn upon a horizontal surface.  
     
     
         4 . The manually guided vehicle of  claim 1 , wherein the manually guided vehicle further comprises a parking device to provide parking and fixing functions for the manually guided vehicle.  
     
     
         5 . The manually guided vehicle of  claim 1 , wherein the manually guided vehicle further comprises a laser pointer to indicate a position of the manually guided vehicle.  
     
     
         6 . The manually guided vehicle of  claim 5 , wherein the laser pointer emits a laser beam on a position label attached on a work station to indicate a parking position of the manually guided vehicle.  
     
     
         7 . The manually guided vehicle of  claim 6 , wherein the position label comprises a dark ground and a light reflection line.  
     
     
         8 . The manually guided vehicle of  claim 7 , wherein the position label comprises a blue ground and a white reflection line.  
     
     
         9 . The manually guided vehicle of  claim 6 , wherein the laser beam is a visible red laser beam to indicate the position of the manually guided vehicle.  
     
     
         10 . The manually guided vehicle of  claim 1 , wherein the guide wheel is able to be raised for releasing from the U-type guiding rail so that the manually guided vehicle can be pushed off of the rails directly.  
     
     
         11 . A manually guided vehicle capable of working on rails to transport a liquid crystal display (LCD) cassette, the manually guided vehicle comprising: 
 a frame;    a handle disposed on a rear side of the frame for ease of operation;    a set of moving wheels providing the manually guided vehicle a capability of moving on rails or ground, wherein the rails comprise a U-type guiding rail;    a guide wheel clamping the U-type guiding rail to limit the manually guided vehicle to moving along rails, wherein the guide wheel is able to be raised for pushing the manually guided vehicle off of the rails;    a supporting device disposed above the frame, wherein the supporting device is capable of double side forking and turning the LCD cassette, wherein the supporting device further comprises. 
 a telescopic fork providing the double side forking capacity for the supporting device; and  
 a turntable providing the supporting device with an ability to turn the LCD cassette on a horizontal surface;  
   a parking device for parking and fixing the manually guided vehicle; and    a laser pointer indicating a position of the manually guided vehicle.    
     
     
         12 . The manually guided vehicle of  claim 11 , wherein the laser pointer emits a laser beam on a position label attached on a work station to indicate a parking position of the manually guided vehicle.  
     
     
         13 . The manually guided vehicle of  claim 12 , wherein the position label comprises a dark ground and a light reflection line.  
     
     
         14 . The manually guided vehicle of  claim 13 , wherein the laser beam is a visible red laser beam to indicate the position of the manually guided vehicle.  
     
     
         15 . The manually guided vehicle of  claim 13 , wherein the position label comprises a blue ground and a white reflection line.  
     
     
         16 . A manually guided vehicle capable of working on rails to transport a liquid crystal display (LCD) cassette, the manually guided vehicle comprising: 
 a frame;    a set of moving wheels providing the manually guided vehicle a capability of moving on rails or ground;    a guide wheel for limiting the manually guided vehicle to moving along rails, wherein the guide wheel is able to be raised for pushing the manually guided vehicle off of the rails; and    a supporting device disposed above the frame for double side forking and rotating along a horizontal surface.    
     
     
         17 . The manually guided vehicle of  claim 16 , wherein the rails comprise a U-type guiding rail, the guide wheel clamping the U-type guiding rail to limit the manually guided vehicle to moving along the rails.  
     
     
         18 . The manually guided vehicle of  claim 16 , wherein the supporting device further comprises: 
 a telescopic fork providing the double side forking capacity for the supporting device; and    a turntable providing the supporting device with a function of turning along a horizontal surface.    
     
     
         19 . The manually guided vehicle of  claim 16 , wherein the manually guided vehicle further comprises a laser pointer to indicate a position of the manually guided vehicle.  
     
     
         20 . The manually guided vehicle of  claim 19 , wherein the laser pointer emits a laser beam on a position label attached on a work station to indicate a parking position of the manually guided vehicle.