Strap-Tensioning Apparatus

Abstract

A strap-tensioning apparatus includes a frame, an automatic reel and a strap-damping unit. The automatic reel is supported on the frame and used to wind a strap. The strap is inserted through and damped by the strap-damping unit. The strap-damping unit is operable for adjusting the damping on the strap.

1 . A strap-tensioning apparatus including a frame and an automatic reel supported on the frame for winding a strap, the strap-tensioning apparatus being characterized in that the strap is inserted through and damped by a strap-damping unit operable for adjusting the damping on the strap. 
     
     
         2 . The strap-tensioning apparatus according to  claim 1 , being characterized in that the strap-damping unit includes:
 a pressing element supported on the frame and formed with two rods, wherein the strap is inserted through a gap between the rods;   a shackle supported on the frame and connected to both of the rods; and   a torque spring including an rectilinear portion placed against the frame and another rectilinear portion inserted through the gap and placed against the rods.   
     
     
         3 . The strap-tensioning apparatus according to  claim 2 , wherein the pressing element includes an axle connected to the rods and supported on the frame. 
     
     
         4 . The strap-tensioning apparatus according to  claim 3 , wherein the frame includes an aperture for receiving the axle. 
     
     
         5 . The strap-tensioning apparatus according to  claim 4 , wherein the pressing element includes a disc connected to the axle and placed against the frame. 
     
     
         6 . The strap-tensioning apparatus according to  claim 5 , wherein the pressing element includes a boss eccentrically formed on the disc and operable for rotating the pressing element. 
     
     
         7 . The strap-tensioning apparatus according to  claim 2 , wherein the shackle includes an axle connected to the rods and supported on the frame. 
     
     
         8 . The strap-tensioning apparatus according to  claim 7 , wherein the frame includes an aperture for receiving the axle. 
     
     
         9 . The strap-tensioning apparatus according to  claim 8 , wherein the shackle includes a disc connected to the axle and placed against the frame. 
     
     
         10 . The strap-tensioning apparatus according to  claim 9 , wherein the shackle includes a boss eccentrically formed on the disc and operable for rotating the shackle. 
     
     
         11 . The strap-tensioning apparatus according to  claim 2 , wherein the shackle includes two apertures for receiving the rods. 
     
     
         12 . The strap-tensioning apparatus according to  claim 11 , wherein each of the rods includes an anchor includes a neck placed in a respective one of the apertures of the shackle and an enlarged head pressed against the shackle. 
     
     
         13 . The strap-tensioning apparatus according to  claim 12 , wherein the anchor includes two halves separated from each other to increase the flexibility thereof.