Stretch Hose

Abstract

An elastically stretchable stretch hose ( 2 ) with a support spiral ( 4 ) acting as a tension spring and with a hose wall ( 6 ) connected with the support spiral ( 4 ) and consisting of a synthetic material, shall have a relatively low weight. Furthermore, it is desirable for various applications that the stretching force required for the extension is kept relatively low. For this purpose, the support spiral ( 4 ) is made, according to the invention, of a synthetic material.

1 . Elastically stretchable stretch hose ( 2 ) comprising:
 a support spiral ( 4 ) acting as a tension spring; and   a hose wall ( 6 ) connected with the support spiral ( 4 ) and consisting of a material that is synthetic, the support spiral ( 4 ) consisting of a synthetic material.   
   
   
       2 . Stretch hose ( 2 ) according to  claim 1 , the support spiral ( 4 ) consisting of a thermoplastically deformable synthetic material. 
   
   
       3 . Stretch hose ( 2 ) according to  claim 1 , the support spiral ( 4 ) consisting of PVC, TPU, PP, TPE, or ABS. 
   
   
       4 . Stretch hose ( 2 ) according to  claim 1 , the support spiral ( 4 ) consisting of a synthetic material having a higher modulus of elasticity than the material of which the hose wall ( 6 ) consists. 
   
   
       5 . Stretch hose ( 2 ) according to  claim 1 , the stretch ratio being at least 1.5:1. 
   
   
       6 . Stretch hose ( 2 ) according to  claim 1 , wherein the hose wall ( 6 ) also has a significant spring effect. 
   
   
       7 . Stretch hose ( 2 ) according to  claim 1 , wherein the spring constant effective when the stretch hose ( 2 ) is stretched has a value of 5 N/m to 25 N/m. 
   
   
       8 . Stretch hose ( 2 ) according to  claim 2 , wherein the thermoplastically deformable synthetic material is a thermoplastic elastomer.