Bicycle tire with reinforcement layer

Abstract

The invention relates to bicycle tires with at least one reinforcement layer that contains strength supports and that is arranged between carcass and tread rubber and/or between carcass layers below the tread rubber and/or within the tread rubber. For a high resistance to puncturing with low weight, the reinforcement layer contains multifilament threads of more than 30 polyester/polyarylate filaments, and the filaments are spun from molten liquid-crystal polymer.

1 . Bicycle tire comprising: 
 a carcass;    a tread rubber;    at least one reinforcement layer containing strength supports comprising multifilament threads of more than 30 polyester/polyarylate filaments, the filaments being spun from molten liquid-crystal polymer, arranged between the carcass and the tread rubber and/or between carcass layers below the tread rubber and/or within the tread rubber.    
   
   
       2 . Bicycle tire according to  claim 1 , wherein the polyester/polyarylate filaments have a diameter of less than 40 μm.  
   
   
       3 . Bicycle tire according to  claim 1 , wherein the polyester/polyarylate has the following structure:  
     
       
         
         
             
             
         
       
     
   
   
       4 . Bicycle tire according to  claim 1 , wherein the multifilament threads are present in the reinforcement layer as threads running parallel to one another and not intersecting, with a thread count of 130 to 480 threads per 10 cm.  
   
   
       5 . Bicycle tire according to  claim 4 , wherein the multifilament threads have a fineness of 200 to 950 dtex.  
   
   
       6 . Bicycle tire according to  claim 4 , wherein the multifilament threads are arranged at an angle of 40 to 50° to the tire circumferential direction and crosswise to the multifilament threads of a fabric layer beneath.  
   
   
       7 . Bicycle tire according to  claim 1 , wherein the multifilament threads in the reinforcement layer are present in a fabric, and the fabric is stretchable in the tire circumferential direction.  
   
   
       8 . Bicycle tire according to  claim 7 , wherein the fabric is a woven band with warp threads of stretchable material in the tire circumferential direction and with weft threads of the multifilament thread.  
   
   
       9 . Bicycle tire according to  claim 1 , wherein the tire contains two or more reinforcement layers.  
   
   
       10 . Bicycle tire according to  claim 2 , wherein the polyester/polyarylate has the following structure:  
     
       
         
         
             
             
         
       
     
   
   
       11 . Bicycle tire according to  claim 1 , wherein the multifilament threads are present in the reinforcement layer as threads running parallel to one another and not intersecting, with a thread count of 200 to 300 threads per 10 cm.  
   
   
       12 . Bicycle tire according to  claim 2 , wherein the multifilament threads are present in the reinforcement layer as threads running parallel to one another and not intersecting, with a thread count of 130 to 480 threads per 10 cm.  
   
   
       13 . Bicycle tire according to  claim 2 , wherein the multifilament threads are present in the reinforcement layer as threads running parallel to one another and not intersecting, with a thread count of 200 to 300 threads per 10 cm.  
   
   
       14 . Bicycle tire according to  claim 3 , wherein the multifilament threads are present in the reinforcement layer as threads running parallel to one another and not intersecting, with a thread count of 130 to 480 threads per 10 cm.  
   
   
       15 . Bicycle tire according to  claim 3 , wherein the multifilament threads are present in the reinforcement layer as threads running parallel to one another and not intersecting, with a thread count of 200 to 300 threads per 10 cm.  
   
   
       16 . Bicycle tire according to  claim 12 , wherein the multifilament threads have a fineness of 200 to 950 dtex.  
   
   
       17 . Bicycle tire according to  claim 14 , wherein the multifilament threads have a fineness of 200 to 950 dtex.  
   
   
       18 . Bicycle tire according to  claim 5 , wherein the multifilament threads are arranged at an angle of 40 to 50° to the tire circumferential direction and crosswise to the strength supports of the fabric layer beneath.  
   
   
       19 . Bicycle tire according to  claim 1 , wherein the tire contains one reinforcement layer.  
   
   
       20 . Bicycle tire according to  claim 2 , wherein the tire contains one reinforcement layer.