Shelter System

Abstract

A shelter system comprising a flexible canopy supported by a plurality of cylindrical tubular poles where the poles comprise a novel assembly for attaching the canopy, ground straps and auxiliary cables to the top of the poles, including an expansion plug disposed in the top end of each tubular pole for anchoring a shaft disposed coaxially with the longitudinal axis of the tube which shaft carries at least one bracket plate and a portion of the canopy.

1 . A shelter system comprising,
 at least one cylindrical tube having a longitudinal axis and first and second ends,   an expansion plug disposed in the first end of the tube and having a shaft disposed coaxially with the longitudinal axis of the tube, and   at least one bracket plate carried by the shaft.   
   
   
       2 . The shelter system of  claim 1  and further including a flexible canopy having at least one perimetrically disposed aperture adapted to encircle the shaft. 
   
   
       3 . The shelter system of  claim 2  and further including at least one cable member having a closed eye terminal end adapted to encircle the shaft. 
   
   
       4 . The shelter system of  claim 1  where the cylindrical tube comprises,
 a plurality of diametrically identical cylindrical tubes disposed end to end with a common longitudinal axis,   a cylindrical collar having first and second ends surrounding the juncture of the ends of the tubes, and   hose clamp means surrounding the collar at each of its ends for clamping the collar to the two adjacent tubes.   
   
   
       5 . The shelter system of  claim 1  and further comprising,
 a covering cap disposed over the second end of the tube, and   an eye attached to the cap for receiving a ground stake.   
   
   
       6 . The shelter system of  claim 1  and further comprising,
 an eye attached to the second end of the tube for receiving a ground stake.   
   
   
       7 . The shelter system of  claim 1  where the shaft is at least partially threaded and further including a nut threaded onto the shaft and where the bracket plate is sandwiched between the nut and the expansion plug. 
   
   
       8 . The shelter system of  claim 2  where the shaft is at least partially threaded and further including a nut threaded onto the shaft and where the bracket plate and the canopy are sandwiched between the nut and the expansion plug. 
   
   
       9 . The shelter system of  claim 3  where the shaft is at least partially threaded and further including a nut threaded onto the shaft and where the bracket plate, the canopy and the closed cable eye are sandwiched between the nut and the expansion plug. 
   
   
       10 . A shelter system comprising,
 at least one cylindrical tube having a longitudinal axis and first and second ends,   an expansion plug disposed in the first end of the tube and having a threaded shaft disposed coaxially with the longitudinal axis of the tube,   a nut threaded onto the shaft,   at least one bracket plate having means for attachment to tension strands and carried by the shaft and sandwiched between the nut and the expansion plug, and   a flexible canopy having at least one perimetrically disposed aperture encircling the shaft and disposed between the bracket plate and the expansion plug.   
   
   
       11 . The shelter system of  claim 10  and further including,
 at least one cable member having a closed eye terminal end encircling the shaft and disposed between the canopy and the expansion plug.   
   
   
       12 . The shelter system of  claim 11  and further including,
 a covering cap disposed over the second end of the tube, and   an eye attached to the cap for receiving a ground stake.   
   
   
       13 . The shelter system of  claim 11  where the cylindrical tube comprises,
 a plurality of diametrically identical cylindrical tubes disposed end to end with a common longitudinal axis,   a cylindrical collar having first and second ends surrounding the juncture of the ends of the tubes, and   hose clamp means surrounding the collar at each of its ends for clamping the collar to the two adjacent tubes and form a tube of fixed length.