Mobile building

Abstract

The invention provides a mobile building having: a an elongate mobile chassis; a pair of foldable frames mounted to the chassis and operable transversely between an extended and a collapsed position; a rigid roof structure longitudinally spanning the pair of frames; a pair of side walls suspended from the pair of frames; and a pair of end walls suspended from the rigid roof structure.

1 . A mobile building comprising: 
 an elongate mobile chassis;    a pair of foldable frames mounted to the chassis and operable transversely between an extended and a collapsed position;    a rigid roof structure longitudinally spanning the pair of frames;    a pair of side walls suspended from the pair of frames; and    a pair of end walls suspended from the rigid roof structure.    
   
   
       2 . A mobile building according to  claim 1 , wherein: 
 each frame includes a rafter operable between an extended and a collapsed position; and    the rigid roof structure includes an upper roof panel and a lower roof panel, a lower portion of the upper roof panel flexibly connected to an upper portion of the lower roof panel;    wherein the rafter in the extended position supports the upper and lower roof panels in a substantially planar orientation and the rafter in the collapsed position supports the upper roof panel with the lower roof panel flexibly suspended from the upper roof panel.    
   
   
       3 . A mobile building according to  claim 2  wherein the frames include stowing clamps engaging the lower roof panel in the collapsed position and releasing the lower roof panel in the extended position.  
   
   
       4 . A mobile building according to  claim 1  wherein at least one end wall comprises: 
 a gable having a plurality of gable panels in overlapping relation.    
   
   
       5 . A mobile building according to  claim 4  wherein the gable comprises a pair of upper gable panels and a pair of lower gable panels.  
   
   
       6 . A mobile building according to  claim 4  wherein the gable includes a curtain rail and an associated end wall comprises a flexible end curtain festooned upon the curtain rail.  
   
   
       7 . A mobile building according to  claim 4  wherein the gable is suspended from purlins of the rigid roof structure.  
   
   
       8 . A mobile building according to  claim 1  wherein at least one side wall includes an eaves beam.  
   
   
       9 . A mobile building according to  claim 8  wherein the eaves beam supports a roller upon which is wound a flexible side curtain.  
   
   
       10 . A mobile building according to  claim 1  wherein the side wall includes a corner post.  
   
   
       11 . A mobile building according to  claim 10  wherein the corner post includes a top corner post with a roller engaging an upper surface of a side wall girt.  
   
   
       12 . A mobile building according to  claim 11  wherein the corner post includes a bottom corner post suspended from the side wall girt.  
   
   
       13 . A mobile building according to  claim 1  wherein the frames each comprise: 
 at least one post comprising an inner portion and telescopically engaging outer portion with an extendable cylinder engaged there between, wherein an engaging portion of the inner portion is surrounded by a sheet bearing.    
   
   
       14 . A mobile building according to  claim 1  wherein the frames each comprise: 
 at least one rafter comprising an inner portion and telescopically engaging outer portion with an extendable cylinder engaged there between, wherein an engaging portion of the inner portion is surrounded by a sheet bearing.    
   
   
       15 . A mobile building according to  claim 1  wherein the chassis includes two wheeled dollies.  
   
   
       16 . A mobile building according to  claim 1  wherein the wheeled dollies are rotatable about a vertical axis.  
   
   
       17 . A mobile building according to  claim 1  wherein the frames include two columns having tractors at a base thereof to move the building.  
   
   
       18 . A mobile building according to  claim 1  wherein the tractors are driven via hydraulic motors.  
   
   
       19 . A mobile building according to  claim 1  comprising no more than two frames, each frame having two rafters hinged together and two posts each fixed to an associated rafter.  
   
   
       20 . A mobile building according to  claim 19  comprising hydraulic actuation system including: 
 extension cylinders one in each of the rafters and columns; tilt cylinders connecting the chassis and an adjacent columns; and peak cylinders engaging adjacent rafters, wherein the hydraulic actuation system includes seven control levers each lever controlling two or more associated cylinders with flow balancing, wherein:    a first lever actuates the two tilt cylinders simultaneously;    a second lever actuates the two peak cylinders simultaneously;    a third and a fourth lever actuate four said rafter extension cylinders simultaneously;    a fifth and a sixth lever actuate four said column extension cylinders simultaneously; and    a seventh lever actuates two column end cylinders simultaneously.