Dust collecting device for a roof tool

Abstract

A dust collecting device disposed circumferentially around a roof tool and in association with a roof drill bit and slidable thereon for collecting and removing dust generated during a dry drilling operation. The dust collecting device comprises a cylinder member, a bushing, and a mounting assembly comprising a top washer, a rubber insert, and a bottom washer. Another aspect of the invention provides a dust collecting device comprising a cylinder member, a bushing, and a mounting assembly comprising a disk and clips. The rubber insert and the clips resist movement of the dust collecting device along the drill steel of the roof tool during the drilling operation.

What is claimed is: 
     
         1 . A roof tool, comprising:
 a drill steel;   a roof drill bit connected to the drill steel;   a dust collecting device circumferentially disposed on the drill steel and the roof drill bit constructed and arranged to collect and remove dust from the environment when drilling a bolt bore hole; and   a mounting assembly for mounting the dust collecting device on the drill steel and the roof drill bit, wherein the mounting assembly comprises at least one clip and a bushing configured to allow but resist movement of the dust collecting device along the drill steel during the drilling of a bolt bore hole.   
     
     
         2 . The roof tool of  claim 1 , wherein the dust collecting device comprises a cylinder member. 
     
     
         3 . The roof tool of  claim 2 , wherein the at least one clip is configured to be slidably engaged with the drill steel. 
     
     
         4 . The roof tool of  claim 3 , wherein the bushing is positioned between the cylinder member and the at least one clip. 
     
     
         5 . The roof tool of  claim 4 , wherein the at least one clip engages the bushing to move the cylinder along the drill steel. 
     
     
         6 . The roof tool of  claim 5 , wherein the roof drill bit comprises at least one vacuum port. 
     
     
         7 . The roof tool of  claim 5 , wherein the cylinder member comprises at least one aperture for drawing in outside air. 
     
     
         8 . The roof tool of  claim 5 , wherein the mounting assembly further includes a disk for engaging the at least one clip. 
     
     
         9 . A dust collecting apparatus for use with a roof bolt drill assembly for collecting and removing dust from the environment when drilling a roof bolt bore hole, the dust collecting apparatus comprising:
 a cylinder member; and   a mounting assembly for mounting the cylinder member on the roof bolt drill assembly, wherein the mounting assembly comprises at least one clip and a bushing configured to allow but resist movement of the cylinder member along the roof bolt drill assembly during the drilling of a bolt bore hole.   
     
     
         10 . The dust collecting apparatus of  claim 9 , wherein the at least one clip is configured to be slidably engaged with the roof bolt drill assembly. 
     
     
         11 . The dust collecting apparatus of  claim 10 , wherein the bushing is positioned between the cylinder member and the at least one clip. 
     
     
         12 . The dust collecting apparatus of  claim 11 , wherein the at least one clip engages the bushing to move the cylinder along the roof bolt drill assembly. 
     
     
         13 . The dust collecting apparatus of  claim 12 , wherein the cylinder member comprises at least one aperture for drawing in outside air. 
     
     
         14 . The dust collecting apparatus of  claim 12 , wherein the mounting assembly further includes a disk for engaging the at least one clip.