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US 12,623,370 B2Granted
Mortising jig
AssigneeJessem Tool Corporation
InventorDarrin E. Smith
Life of this patent
Estimating the term…
Abstract
A mortising jig and associated components and methods for cutting a mortise in a workpiece. The jig includes a guide assembly for locating and moving a drill bit of a drilling tool relative to the workpiece. The guide assembly includes a guide rail and a guide. The guide includes a guide carriage movably mounted on the guide rail for movement along the guide rail and a drill bit support. The drill bit support is movable with the guide carriage. The drill bit support includes a rest arranged to locate the drill bit of the drilling tool relative to the workpiece. The drill bit support is movable relative to the guide carriage to change a distance between the rest and the guide carriage.
Claims17
A jig for cutting a mortise in a workpiece using a drilling tool having a drill bit, the jig comprising:
- a guide assembly configured to locate and move the drill bit of the drilling tool relative to the workpiece, the guide assembly comprising:
- a guide rail;
- and
- a guide comprising:
- a guide carriage movably mounted on the guide rail for movement along the guide rail;
- a drill bit support arranged to be movable with the guide carriage, the drill bit support including a rest arranged to locate the drill bit of the drilling tool relative to the workpiece, the drill bit support being movable relative to the guide carriage to change a distance between the rest and the guide carriage, the movement of the drill bit support relative to the guide carriage to change the distance between the rest and the guide carriage being actuated by movement of the guide carriage on the guide rail;
- an indexer arranged to control the movement of the drill bit support relative to the guide carriage;
- wherein the guide carriage is supported by the guide rail for linear reciprocating motion with respect to the guide rail, the linear reciprocating motion including a series of strokes in alternating directions,
- wherein the indexer is configured to permit the movement of the drill bit support relative to the guide carriage when the guide carriage is generally at the end of each stroke and is configured to inhibit the movement of the drill bit support relative to the guide carriage during each stroke prior to the guide carriage being generally at the end of each stroke, and
- wherein the guide assembly comprises a pivotable lever operatively connected to the guide carriage such that rocking motion of the lever produces the linear reciprocating motion of the guide carriage on the guide rail.
7 more elements
A jig for cutting a mortise in a workpiece using a drilling tool having a drill bit, the jig comprising:
- a guide assembly configured to locate and move the drill bit of the drilling tool relative to the workpiece, the guide assembly comprising:
- a guide rail;
- and
- a guide comprising:
- a guide carriage movably mounted on the guide rail for movement along the guide rail;
- a drill bit support arranged to be movable with the guide carriage, the drill bit support including a rest arranged to locate the drill bit of the drilling tool relative to the workpiece, the drill bit support being movable relative to the guide carriage to change a distance between the rest and the guide carriage, the movement of the drill bit support relative to the guide carriage to change the distance between the rest and the guide carriage being actuated by movement of the guide carriage on the guide rail;
- an indexer arranged to control the movement of the drill bit support relative to the guide carriage;
- wherein the guide carriage is supported by the guide rail for linear reciprocating motion with respect to the guide rail, the linear reciprocating motion including a series of strokes in alternating directions,
- wherein the indexer is configured to permit the movement of the drill bit support relative to the guide carriage when the guide carriage is generally at the end of each stroke and is configured to inhibit the movement of the drill bit support relative to the guide carriage during each stroke prior to the guide carriage being generally at the end of each stroke, and
- wherein the guide assembly includes a guide support supporting the guide rail, and wherein the indexer includes a first engagement surface and a second engagement surface, the first engagement surface arranged to engage the guide support to actuate the indexer to permit the movement of the drill bit support relative to the guide carriage when the guide carriage is generally at the end of each stroke in a first direction of the alternating directions, and the second engagement surface arranged to engage the guide support to actuate the indexer to permit the movement of the drill bit support relative to the guide carriage when the guide carriage is generally at the end of each stroke in a second direction of the alternating directions.
7 more elements
A jig for cutting a mortise in a workpiece using a drilling tool having a drill bit, the jig comprising:
- a guide assembly configured to locate and move the drill bit of the drilling tool relative to the workpiece, the guide assembly comprising:
- a guide rail;
- and
- a guide comprising:
- a guide carriage movably mounted on the guide rail for movement along the guide rail;
- a drill bit support arranged to be movable with the guide carriage, the drill bit support including a rest arranged to locate the drill bit of the drilling tool relative to the workpiece, the drill bit support being movable relative to the guide carriage to change a distance between the rest and the guide carriage;
- and
- an indexer arranged to control the movement of the drill bit support relative to the guide carriage, the indexer comprising a first indexing member and a second indexing member, the first and second indexing members each being moveable between a first position and a second position independent of the other indexing member, wherein the first and second indexing members are each arranged to permit the movement of the drill bit support relative to the guide carriage in the first position, wherein the first and second indexing members are each arranged to inhibit the movement of the drill bit support relative to the guide carriage in the second position.
5 more elements
A jig for cutting a mortise in a workpiece using a drilling tool having a drill bit, the jig comprising:
- a base defining a cutting window arranged to view the workpiece;
- and
- a guide assembly supported by the base, the guide assembly configured to locate and move the drill bit of the drilling tool relative to the workpiece, the guide assembly comprising:
- a guide rail;
- and
- a guide carriage movably mounted on the guide rail for movement along the guide rail, the guide carriage having a drill bit opening sized and shaped to receive the drill bit of the drilling tool, the drill bit opening having a longitudinal axis that is coextensive with an axis of rotation about which the drill bit rotates when the drill bit is received in the drill bit opening;
- wherein the guide assembly is movable relative to the base between a cutting position and a setup position, the longitudinal axis of the drill bit opening being aligned with the cutting window of the base when the guide assembly is in the cutting position, the longitudinal axis of the drill bit opening being spaced apart from the cutting window of the base when the guide assembly is in the setup position.
4 more elements
Dependencies are inferred from the claim text.