Friction ring for a friction roll for the driving of a spool on a textile machine

Abstract

In order to drive a spool on a textile machine, a friction roll is provided, having a rotating body, carrying at least one friction ring. This friction ring is designed in the manner of a belt with two, open ends that are clasped together by two connectors. The two connectors, when linked together, form a releasable end fastening apparatus. The two connectors exhibit in this linkage, interlinking hooks. The fastening apparatus for the friction ring ends can serve simultaneously as a ring fastener to the friction roll. Further, the friction ring can be affixed, at a distance away from the two open ends, onto the friction roll with additional fasteners, which are uniformly distributed around the circumference of the friction roll. The two connectors and/or the friction ring exhibit a preselected radius of curvature which adapts to the radius of curvature of the outer circumference of the friction roll.

1 - 22 . (Cancelled).  
   
   
       23 . An apparatus for friction driving a spool on a textile machine, said apparatus comprising: 
 a friction roll having at least one rotatable roll body disposed thereon; and    a friction ring carried on said rotatable roll body, said friction ring configured as a belt with two open ends bound together by a fastening apparatus.    
   
   
       24 . An apparatus as in  claim 23 , wherein said fastening apparatus also affixes said friction ring to said roll body to secure the friction ring to said roll body.  
   
   
       25 . An apparatus as in  claim 24 , wherein said fastening apparatus comprises a bolt.  
   
   
       26 . An apparatus as in  claim 24 , wherein said fastening apparatus comprises at least one protuberance that is insertable into a complementary back cut groove defined in at least one of said roll body or said friction roll parallel to the axis of said friction roll.  
   
   
       27 . An apparatus as in  claim 23 , wherein said friction ring is further affixable to at least one of said roll body or said friction roll by at least one auxiliary fastener.  
   
   
       28 . An apparatus as in  claim 27 , wherein said fastening apparatus and said auxiliary fastener are equally distributed over the circumference of at least one said roll body or said friction roll.  
   
   
       29 . An apparatus as in  claim 23 , wherein said fastening apparatus comprises two connectors, whereby one of said connectors is secured to each of said two open ends of said friction ring.  
   
   
       30 . An apparatus as in  claim 29 , wherein said fastening apparatus further comprises a bolt device that is extendable through recesses in both of said connectors.  
   
   
       31 . An apparatus as in  claim 30 , wherein said bolt device is extendable into at least one of said roll body or said friction roll.  
   
   
       32 . An apparatus as in  claim 29 , wherein said connectors comprise clips.  
   
   
       33 . An apparatus as in  claim 29 , wherein each of said connectors include at least one hook that is engagable with a corresponding hook on said other connector.  
   
   
       34 . An apparatus as in  claim 33 , wherein said hooks have a slanted shape.  
   
   
       35 . An apparatus as in  claim 33 , wherein said hooks are subjected to a load in a locking direction relative to a direction of drive of said friction ring when said connectors have secured a friction ring to said roll body.  
   
   
       36 . An apparatus as in  claim 29 , wherein surfaces of said friction ring and said connectors form a shape-based connection to secure said friction ring to said roll body.  
   
   
       37 . An apparatus as in  claim 23 , wherein said friction ring is elastically constructed in a length direction so that said friction ring when installed on said roll body is subjected to tensile force.  
   
   
       38 . An apparatus as in  claim 37 , wherein said friction ring exhibits a cross-section that diminishes from a center portion of said friction ring to edges of said friction ring when no tensile force is acting on said friction ring.  
   
   
       39 . An apparatus as in  claim 38 , wherein said cross-section of said friction ring is about constant when subject to said tensile force equal to that of installation on said roll body.  
   
   
       40 . An apparatus as in  claim 37 , wherein said friction ring exhibits a width that diminishes with increasing distance from said ends of said friction ring when no tensile force is acting on said friction ring.  
   
   
       41 . An apparatus as in  claim 23 , wherein said friction ring is preshaped in a curvature that conforms to a curvature of a circumference of said roll body.  
   
   
       42 . An apparatus as in  claim 41 , wherein said fastening apparatus is preshaped in a curvature that conforms to a curvature of a circumference of said roll body.  
   
   
       43 . An apparatus as in  claim 23 , wherein said ends of said friction ring are joined by an adhesive.  
   
   
       44 . An apparatus as in  claim 43 , wherein said ends of said friction ring have prepared points for adhesion.  
   
   
       45 . An apparatus as in  claim 44 , wherein said prepared points of adhesion are covered with adhesive before installation of said friction ring on said roll body.  
   
   
       46 . An apparatus as in  claim 43 , wherein said adhesive is capable of being activated by at least one of light or heat.  
   
   
       47 . An apparatus as in  claim 23 , wherein said fastening apparatus further comprises a bolt device that is extendable through recesses in both of said ends of said friction ring.  
   
   
       48 . An apparatus as in  claim 47 , wherein said bolt device is extendable into at least one of said roll body.