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US 6,742,735 B2Granted
Tool body and method of manufacture
AssigneeThe Sollami Company
InventorPhillip A. Sollami
Life of this patent
Estimating the term…
Abstract
A tool body is cold formed by inserting a blank into a die which defines a portion of the outer surface of the tool body after which a punch applies an impact to the blank causing the outer surface of the blank to conform to the contour of the die. The completed tool has an elongate hub with a cylindrical forward portion having a diameter sized to rotatably fit within the bore of a tool holder and a rearward portion with a diameter a little less than the that of the forward portion. The smaller diameter rearward portion facilitates the insertion and alignment of the tool in the tool holder.
Claims12
A cutting tool comprising
- a cylindrical shank having a distal end,
- a cylindrical hub at said distal end of said cylindrical shank,
- a radial flange forward of said cylindrical shank,
- a cutting end forward of said radial flange,
- said cutting tool having a longitudinal axis,
- said radial flange having an annular rearward surface,
- said annular rearward surface defining a plane perpendicular to said longitudinal axis of said cutting tool,
- a frustoconical portion between said annular rearward surface and said cylindrical shank, and
- an annular radial shoulder between said frustoconical portion and said cylindrical shank.
6 more elements
A cold formed tool body comprising
- a tapered forward end,
- a radial flange axially aligned behind said tapered forward end,
- a cylindrical shank axially aligned behind said radial flange,
- said radial flange having a cold formed cylindrical portion,
- an annular bulge of overfill forward of said cylindrical portion,
- a frustoconical portion behind said radial flange and forward of said cylindrical shank, and
- a shoulder between said frustoconical portion and said cylindrical shank.
4 more elements
The combination comprising
- a tool holder having a body with a forward surface,
- said forward surface having a portion with an outer edge,
- an aperture in said body opening in said forward surface, said aperture having a longitudinal axis,
- a tool body having a tapered forward end, a radial flange axially behind said tapered forward end, and a cylindrical shank axially behind said radial flange,
- said cylindrical shank extending into said aperture,
- said radial flange having a rear surface forward of said forward surface, said tool body having a frustoconical portion between said radial flange and cylindrical shank and a first radial shoulder between said frustoconical portion and said cylindrical shank,
- said cylindrical shank having a distal end, a hub at said distal end and second radial shoulder between said hub and said shank,
- a spring loaded retaining sleeve on said shank between said first radial shoulder and said second radial shoulder, and
- said spring loader retainer having a length no more than {fraction (1/16)} inch less than the distance between said first radial shoulder and said second radial shoulder.
6 more elements
The combination comprising
- a tool holder and a rotatable cutting tool wherein
- said tool holder has a holder body with a cylindrical bore therein, said cylindrical bore having a standard length and a given diameter,
- a rearward portion of said cylindrical bore having been enlarged by wear so as to be larger than said given diameter,
- said cutting tool has
- a tapered forward end having a central longitudinal axis,
- a hard cutting tip on said forward end,
- a radial flange axially aligned behind said tapered forward end,
- a cylindrical shank having a central portion, distal end and a length at least equal to said standard minimal length,
- a compressible sleeve fitted around said central portion,
- an enlarged diameter hub at said distal end of said shank,
- said enlarged diameter hub having a forward portion and a rearward portion,
- said forward portion being cylindrical and having a diameter a little less than that of said given diameter wherein said forward portion serves as a bearing to facilitate rotation of said tool while said shank of said tool is retained in said bore of said tool holder by said compressible sleeve, and
- said forward portion of said enlarged diameter hub is positioned within said bore forward of said rearward portion of said cylindrical base.
10 more elements
Dependencies are inferred from the claim text.