Driver for abrasive disks

Abstract

A driver for abrasive disks, that includes a housing assembly, a motor assembly, a driven pulley assembly, and, a belt. The motor assembly is supported by the housing assembly and connectable to a power source. The motor assembly has a motor output shaft with a motor output shaft axis. The motor assembly includes a motor drive pulley operatively connected to the motor output shaft. A driven pulley assembly is supported by the housing assembly. The driven pulley assembly has a rotatably mounted driven pulley with a driven pulley axis. The driven pulley assembly is for attaching an abrasive disk. A belt is operatively connected to the driven pulley and to the motor drive pulley. The motor output shaft axis and the driven pulley shaft axis are parallel thereby obviating the requirement of any gears.

1 . A driver for abrasive disks, comprising: 
 a) a housing assembly;    b) a motor assembly supported by said housing assembly and connectable to a power source, said motor assembly having a motor output shaft with a motor output shaft axis, said motor assembly including a motor drive pulley operatively connected to said motor output shaft;    c) a driven pulley assembly supported by said housing assembly, said driven pulley assembly having a rotatably mounted driven pulley with a driven pulley axis, said driven pulley assembly for attaching an abrasive disk; and,    d) a belt operatively connected to said driven pulley and to said motor drive pulley, wherein said motor output shaft axis and said driven pulley shaft axis are parallel thereby obviating the requirement of any gears.    
   
   
       2 . The driver of  claim 1 , wherein said driven pulley operates at a maximum speed of about 8,000 rpm.  
   
   
       3 . The driver of  claim 1 , wherein said motor assembly is pneumatically driven.  
   
   
       4 . The driver of  claim 1 , wherein said motor assembly is electrically driven.  
   
   
       5 . The driver of  claim 1 , wherein said housing assembly, comprises: 
 a) an elongated handle section, including a switching element operatively connected to said motor assembly and a connector for connection to said power source;    b) a motor housing section for enclosing said motor assembly; and,    c) a support plate section for supporting said driven pulley assembly, wherein said motor assembly is transversely mounted relative to an axis of said elongated handle section.    
   
   
       6 . The driver of  claim 1 , wherein said driven pulley assembly, comprises: 
 a) a driven pulley support element securely connected to said housing assembly, said driven pulley support element having an opening defined by a threaded inner surface thereof;    b) a driven pulley shaft secured within said threaded inner surface;    c) a bearing assembly supported by said driven pulley shaft, said rotatably mounted driven pulley being supported by said bearing assembly; and,    d) a disk attachment member securely attached to said driven pulley, said disc attachment member for supporting the abrasive disk.    
   
   
       7 . The driver of  claim 1 , further including a drive cover attached to said driven pulley support element for covering said driven pulley assembly, said belt and said motor drive pulley.