Connection device and drive assembly for a cutting tool

Abstract

The present invention provides a connection device or tool (10, 110, 210, 310, 410, 510, 610, 1110, 2110, 3110, 4110) to connect a first tool (80, 90) to a second tool (90,80), the connection device or tool (10, 110, 210, 310, 410, 510, 610, 1110, 2110, 3110, 4110) comprising at least one shell member 30 which clamps a first end to said first tool (80, 90) and a second end of said at least one shell member 30 to engage with said second tool (90,80), whereby relative rotation between said first tool and second tool is prevented, and axial separation of said first tool (80, 90) and second tool (90,80) is prevented or is assisted in being prevented. This results in a safer combination of the first tool (80, 90) and second tool (90,80), and allows for a one handed operation of the combination.

1 - 46 . (canceled) 
     
     
         47 . A connection tool or device to connect a first tool to a second tool, said connection tool or device comprising a shell member which has at least a first end which is securable, and or includes portions moveable with respect to each other, so as to clamp said first end to said first tool and a second end of said shell member being adapted to interact or cooperate with said second tool. 
     
     
         48 . A connection tool or device as claimed in  claim 47 , wherein said second end interacts or cooperates with said second tool by rotation therebetween being prevented. 
     
     
         49 . A connection tool or device as claimed in  claim 48 , wherein rotation is prevented by said second end engaging a portion of said second tool. 
     
     
         50 . A connection tool or device as claimed in  claim 47  wherein said said portions which are moveable with respect to each other clamp a first end of the shell member to the first tool whereby the second end of said shell member will prevent rotation between said second end and said second tool. 
     
     
         51 . A connection tool or device as claimed in  claim 47  wherein there is further included a friction generating material on an inner surface of said shell so as to increase the friction developed with said first and or said second tool when said connection tool or device is assembled or clamped to said first tool. 
     
     
         52 . A connection tool or device as claimed in  claim 47 , wherein said shell member has at least one flange located on an outer periphery thereof by which securing means is provided to clamp said shell member onto said first tool. 
     
     
         53 . A connection tool or device as claimed in  claim 47 , wherein said shell member acts as a shield by closing off, or partially closing off, a space between said first tool and second tool. 
     
     
         54 . A connection tool or device as claimed in  claim 47 , wherein said shell member has free sides which are able to move towards each other. 
     
     
         55 . A connection tool or device as claimed in  claim 54 , wherein said sides include one or more flanges to secure said sides of said connection tool or device together to clamp to said first and or second tool. 
     
     
         56 . A connection tool or device as claimed in  claim 47  wherein said shell has a generally cylindrical forward end. 
     
     
         57 . A connection tool or device as claimed in  claim 47  wherein said shell has a bifurcated second end to interact or cooperate with the second tool. 
     
     
         58 . A connection tool or device as claimed in  claim 47  wherein said shell has rearward extending wings which interact or cooperate with the second tool. 
     
     
         59 . A connection tool or device as claimed in  claim 58  wherein said wings have a curved construction. 
     
     
         60 . A connection tool or device as claimed in  claim 58  wherein said wings have a shape which decreasingly tapers in a front to rear direction. 
     
     
         61 . A connection tool or device as claimed in  claim 58  wherein the periphery of said wings include a reinforcing flange. 
     
     
         62 . A connection tool or device as claimed in  claim 47  wherein an inner rim of said shell includes a flange or shoulder to control depth of insertion of said first tool received by said connection tool or device. 
     
     
         63 . A connection tool or device as claimed in  claim 47  wherein the second or rearward end of said connection tool or device allows vision through to said first and or second tool. 
     
     
         64 . A connection tool or device as claimed in  claim 47  wherein a screw compression mechanism is provided intermediate the ends of said tool or device so that said tool or device can apply pressure or force to said second tool and or said first tool.