Rotating tool star shaped holding member interfitted to insert mounting disk
AssigneeTodd N. Bishop
InventorTodd N. Bishop
Life of this patent
Estimating the term…
Abstract
An improved cutting tool having a cutting insert mounting member and a star shaped cutter insert holding member of similar diameter: the two members when interfitted, secure a plurality of cutting inserts about the outer circumference of the assembled tool. Secure clamping of the cutters is achieved through both axial and radial clamping forces generated by the action of the holding member. Additional radial and axial clamping forces are exerted on the cutting inserts by centripetal acceleration acting on the members during operation. Depth limiters devices that mount in the tool act as skids on the work surface to control the aggressiveness of the cut. An isolation mechanism may be included to eliminate oscillations transmitted by the hand held power unit to the cutting tool.
Claims44
A rotary tool adopted to hold at least one cutting insert or plunge limiter, said tool having an axis of rotation comprising:
- a first generally disk shaped member having a plurality of axially projecting rim segments forming a plurality of cutting insert pockets that are generally radially oriented, each pocket comprising a leading and trailing surface oriented at an angle to said plane normal to the axis and extending generally axially to said plane, said member having an outer rim and first and second faces;
- a second member having an outer diameter substantially equal to an outer diameter of said first disk shaped member and having a plurality of radially extending protrusions, each protrusion having two surfaces that correspond dimensionally to the cutting insert pockets, one surface engaging surface of a cutting insert pocket and the other surface sized to engage a cutting insert or plunge limiter mounted in a pocket of the first member when said cutting insert or plunge limiter is mounted in said pocket wherein when said first and second disk shaped members are assembled and interfitted with one another, the second disk shaped member will block or wedge cutting inserts or plunge limiters mounted in the cutting insert pockets into place while allowing a portion of the cutting insert to project above at least one face of the tool or beyond said outer rim.
A rotary tool adopted to hold at least one cutting insert or plunge limiter, said tool having an axis of rotation comprising:
- a first substantially disk shaped member having a plurality of axially projecting rim segments forming a plurality of cutting insert mounting pockets that are generally radially oriented;
- each said segment comprising a leading and trailing surface being oriented at an angle to a plane normal to the axis and extending generally axially to said plane;
- a second one piece, substantially disk shaped member having an outer diameter substantially equal to an outer diameter of said first disk shaped member, and having a plurality of radially extending protrusions, each protrusion having two facing surfaces that correspond dimensionally and engaging with one of said leading and trailing surfaces of said axially projecting rim segments and a surface of a cutting insert or plunge limiter when said cutting insert or plunge limiter is present wherein said first and second disk shaped members when assembled, are interfitted with one another such that the presence of the second disk will block or wedge a plurality of said cutting insert or plunge limiters into place, allowing a portion of the cutting insert or plunge limiter to project above a face of the tool.
Dependencies are inferred from the claim text.