Shaper cutter heads and router bits with indexing feature
OwnerHenry Wanginventor
Life of this patent
Estimating the term…
Abstract
An apparatus (1300), including: a shaper cutter head (1308) having: a body (1312); a bore (1314) through the body; and a cutter 1310) secured to the body. Along a longitudinal axis (1306), the cutter has: a miter profile, a groove profile and a tongue profile for cutting a miter. The body has a portion (1352) comprising a recess (1320) disposed between the miter profile of the cutter and an end of the body. The recess defines a flat indexing surface (1326) protruding radially outwards from a portion of the body. When the shaper cutter head is rotated about the longitudinal axis, the body defines a body sweep (1360). The flat indexing surface is recessed from the body sweep.
Claims20
An apparatus, comprising:
- a cutting bit comprising a router bit or a shaper cutter head, comprising:
- a body;
- and a cutter secured to the body;
- wherein when the cutting bit is installed in a woodworking machine the body is configured to rotate about a longitudinal axis;
- wherein along the longitudinal axis:
- the cutter defines a concave or convex cutting-edge profile;
- the cutting-edge profile is symmetric about an axial midpoint of the cutting-edge profile that is equidistant from longitudinal ends of the cutting-edge profile;
- wherein relative to the longitudinal axis the axial midpoint is a radially inner most or a radially outermost point on the arcuate cutting-edge profile;
- and
- wherein the body comprises a recess that defines a flat indexing surface that is disposed at a same axial position along the longitudinal axis as the axial midpoint, that protrudes radially outwards from a portion of the body, and wherein from the flat indexing surface a normal line extends that is parallel to the longitudinal axis.
An apparatus, comprising:
- a cutting bit comprising a router bit or a shaper cutter head, comprising:
- a body;
- and a cutter secured to the body;
- wherein when the cutting bit is installed in a woodworking machine the body is configured to rotate about a longitudinal axis;
- wherein along the longitudinal axis the cutter defines an arcuate cutting-edge profile;
- wherein the arcuate cutting-edge profile comprises a midpoint that is equidistant from longitudinal ends of the arcuate cutting-edge profile,
- wherein relative to the longitudinal axis the midpoint is a radially inner most or a radially outermost point on the arcuate cutting-edge profile;
- and
- wherein the body comprises a recess that defines a flat indexing surface that is disposed at a same axial position along the longitudinal axis as an axial midpoint of the cutting-edge profile that is equidistant from longitudinal ends of the cutting-edge profile, that protrudes radially outwards from a portion of the body, and that bisects the cutting-edge profile.
An apparatus, comprising:
- a cutting bit comprising a router bit or a shaper cutter head, comprising:
- a body;
- and a cutter secured to the body;
- wherein when the cutting bit is installed in a woodworking machine the body is configured to rotate about a longitudinal axis;
- wherein starting at a first position and ending at a second position along the longitudinal axis:
- the cutter defines an arcuate cutting-edge profile;
- and
- the body defines an arcuate body profile that is uninterrupted except for a lone subregion;
- and
- wherein a recess in the lone subregion of the body defines a flat indexing surface that is:
- disposed at a same axial position along the longitudinal axis as an axial midpoint of the arcuate cutting-edge profile that is equidistant from longitudinal ends of the cutting-edge profile;
- that protrudes radially outwards from a portion of the body;
- and that bisects the cutting-edge profile.
Dependencies are inferred from the claim text.