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US 8,622,669 B2Granted
Broaching tool
OwnerJames Joseph Gardnerinventor
Life of this patent
Estimating the term…
Abstract
A broaching tool for machining a workpiece formed of a parallelogram shaped insert which fits within a slot formed in a body member. The insert has two juxtaposed corners either of which may be oriented at the distal end of the body member to function as a cutting edge. Repositioning of the insert to place either cutting edge in place is provided by flipping it over in its engagement within the slot. The inserts may be provided in a kit of differently configured inserts to yield different cutting widths.
Claims19
A broaching tool apparatus for machining a workpiece, comprising:
- an insert, said insert adapted to engage within a slot formed upon a distal end of a body member, said body member having an opposite end adapted to engage a mount, said body member having a longitudinal axis along a length of said body member;
- said slot including a sloped bottom and a rear wall extending substantially perpendicular said longitudinal axis of said body member, an intersection of said sloped bottom and said rear wall of said slot forming an acute angle;
- said insert having a shape, said shape being a parallelogram shape defined by two parallel side edges of substantially equal length, a first end communicating between said side edges, and a second end opposite and substantially parallel to said first end, said second end communicating between said side edges;
- said insert having an as-used position in said slot in a first orientation or a second orientation;
- said first orientation positioning a first corner of said insert in a cutting position above a top edge of said distal end of said body member;
- said second orientation positioning a second corner, juxtaposed to said first corner, in said cutting position;
- at least one fastener to maintain said insert in said slot in either of said first orientation or said second orientation, whereby said insert may be engaged in said as-used position and changed between said first orientation or second orientation, to thereby place either of said first corner or said second corner in said cutting position interchangeably, without an adjustment of the geometry of said insert or said body member relative to said workpiece;
- wherein said first corner and said second corner each form an acute angle in said parallelogram shape of said insert;
- and
- wherein said acute angle formed by said first corner and said second corner in said parallelogram of said insert is substantially the same as the acute angle formed by said intersection of said sloped bottom and said rear wall of said slot.
7 more elements
A broaching tool apparatus for machining a workpiece, comprising:
- a body member having a first end and having a distal end;
- said body member having a longitudinal axis along a length of said body member;
- a slot formed upon said distal end of a body member;
- said slot including a sloped bottom and a rear wall extending substantially perpendicular said longitudinal axis of said body member, an intersection of said sloped bottom and said rear wall of said slot forming an acute angle;
- an insert, said insert configured to engage within said slot;
- said insert having a shape, said shape being a parallelogram;
- defined by two parallel side edges of substantially equal length, a first end communicating between said side edges, and a second end opposite and substantially parallel to said first end, said second end communicating between said side edges;
- said insert having an as-used position in said slot in a first orientation or a second orientation;
- said first orientation positioning a first corner of said insert in a cutting position above a top edge of said distal end of said body member;
- said second orientation positioning a second corner, juxtaposed to said first corner, in said cutting position;
- and
- at least one fastener to maintain said insert in said slot in either of said first orientation or said second orientation, whereby said insert may be engaged in said as-used position and changed between said first orientation or second orientation, to thereby place either of said first corner or said second corner in said cutting position interchangeably, without an adjustment of the geometry of said insert or said body member relative to said workpiece;
- wherein said first corner and said second corner each form an acute angle in said parallelogram shape of said insert;
- and
- wherein said acute angle formed by said first corner and said second corner in said parallelogram of said insert is substantially the same as the acute angle formed by said intersection of said sloped bottom and said rear wall of said slot.
12 more elements
Dependencies are inferred from the claim text.