Brush module for a grinding brush

Abstract

A brush module ( 6 ) for a rotating grinding brush, said brush module comprising: an elongate body part ( 7 ); at least one abrasive cloth ( 9 ) protruding from the body part ( 7 ); a plurality of bristles ( 8 ) extending from the body part ( 7 ) essentially in the same direction as the abrasive cloth ( 9 ). The body part ( 7 ) is provided with an undercut, longitudinally extending guide ( 13 ), and at an edge the abrasive cloth ( 9 ) is provided with a protruding bead ( 15 ) that is complementary with the undercut groove ( 13 ) to the effect that the undercut guide ( 13 ) and the protruding bead ( 15 ) constitute complementary mechanical interconnecting means for releasable mounting of the abrasive cloth ( 9 ) on the body part ( 7 ). The protruding bead ( 15 ) is provided on a holder ( 14 ) comprising two flaps ( 16, 17 ), between which an edge of the abrasive cloth ( 9 ) is securely clamped. Besides, use of such abrasive cloth ( 9 ) in a rotating grinding brush with or without brush module.

1 . A brush module for a rotating grinding brush, said brushing module comprising: 
 an elongate body part;    at least one abrasive cloth protruding from the body part; and    a plurality of bristles protruding from the body part essentially in the same direction as the abrasive cloth;    said body part being provided with an undercut, longitudinally extending guide; and the abrasive cloth being at an edge provided with a protruding bead that is complementary with the undercut guide, whereby the undercut groove and the protruding bead constitute complementary mechanical interconnecting means for releasable mounting of the abrasive cloth on the body part, wherein the protruding bead is provided on a holder comprising two flaps, between which an edge of the abrasive cloth is mounted.    
     
     
         2 . A brush module according to  claim 1 , wherein the holder is manufactured from metal.  
     
     
         3 . A brush module according to  claim 1 , wherein the holder is made of plastic.  
     
     
         4 . A brush module according to  claim 1 , wherein the edge of the abrasive cloth is securely clamped between the flaps of the holder.  
     
     
         5 . A brush module according to  claim 1 , wherein the edge of the abrasive cloth is adhered by gluing between the flaps of the holder.  
     
     
         6 . A brush module according to  claim 1 , wherein the bristles are fixedly mounted in the body part.  
     
     
         7 . A brush module according to  claim 1 , wherein the brush module comprises a coupling part for interconnection with at least one hub in a grinding brush, said coupling part protruding from the body part in a direction opposite that of the abrasive cloth and the bristles.  
     
     
         8 . An abrasive cloth for use in a rotating grinding brush, said grinding brush comprising at least one cylinder with rows of radially protruding bristles and rows of undercut, longitudinally extending guides arranged there between and being complementary with a protruding bead at the edge of the abrasive cloth, whereby the undercut guides and the protruding bead constitute complementary mechanical interconnecting means for releasable mounting of the abrasive cloth on the grinding brush, wherein the protruding bead is provided on a holder that comprises two flaps, between which an edge of the abrasive cloth is mounted.  
     
     
         9 . An abrasive cloth according to  claim 8 , wherein the cylinder comprises a hub with a plurality of undercut, axially extending grooves, in which brush modules are mounted.  
     
     
         10 . An abrasive cloth according to  claim 9 , wherein a dismountable end plate is provided at least at the one end of the grinding brush, said end plate extending radially outwards past the axially extending grooves in the hub.  
     
     
         11 . An abrasive cloth according to  claim 10 , wherein the end plate is provided with indexation slots that can, by turning of the end plate, be aligned with the complementary interconnecting means between the brush module and the abrasive cloth.