US 7,114,425 B2 · Fine-adjustment mechanism to preset a miter saw for precision miter cuts

Abstract

A fine-adjustment mechanism for making small adjustments to a cutting angle on a miter saw. The mechanism is used in conjunction with an apparatus that includes a base having at least one recess, and a turntable that supports a cutting tool is rotatably mounted to the base. An angular-adjustment lever is pivotally mounted to the turntable. The angular-adjustment lever includes a first insert proximal to the turntable. The first insert is capable of engaging at least one recess. The fine-adjustment mechanism is mounted to the turntable and includes a fine-adjustment lever pivotally mounted on the turntable. The fine-adjustment lever may include a plurality of notches. A second insert having an opening therethrough is supported by the fine-adjustment lever and adapted to engage at least one recess of the base. A threaded rod supported by the fine-adjustment lever extends through the opening in the second insert. A latch holder may be attached to the fine-adjustment lever. The latch holder contains a spring secured by a retainer plate and a latch having a plurality of protrusions capable of mating with the plurality of notches in the fine-adjustment lever.

Claims20

Dependent claims

A miter saw assembly, comprising:

a base defining a plurality of detent recesses;
a turntable rotatable in relation to said base;
a cutting tool operable to cut a work piece positioned on said turntable;
and
an adjustment mechanism attached to said turntable and including (i) a yoke having a first wall and a second wall that are spaced apart from each other, said first wall defining a first opening, and said second wall defining a second opening, (ii) a threaded rod extending through said first opening and said second opening, and (iii) an insert interposed between said first wall and said second wall, said insert defining an internally threaded passage through which said threaded rod extends,
wherein said adjustment mechanism is movable between (i) a first position in which said insert is positioned in one of said plurality of detent recesses, and (ii) a second position in which said insert is spaced apart from all of said plurality of detent recesses, and
wherein, when said adjustment mechanism is positioned in said first position, rotation of said threaded rod causes said turntable to rotate in relation to said base.

4 more elements

An assembly, comprising:

a base defining a plurality of detent recesses;
a turntable rotatable in relation to said base;
a cutting tool operable to cut a work piece positioned on said turntable;
and
an adjustment mechanism including (i) a first wall defining a first opening, (ii) a second wall spaced apart from said first wall and defining a second opening, (ii) a threaded rod extending through said first opening and said second opening, and (iii) a detent member interposed between said first wall and said second wall, said detent member defining an internally threaded passage through which said threaded rod extends,
wherein said adjustment mechanism is movable between (i) a first position in which said detent member is positioned in one of said plurality of detent recesses, and (ii) a second position in which said detent member is spaced apart from all of said plurality of detent recesses, and
wherein, when said adjustment mechanism is positioned in said first position, rotation of said threaded rod causes said turntable to rotate in relation to said base.

4 more elements

Dependencies are inferred from the claim text.

Fine-adjustment mechanism to preset a miter saw for precision miter cuts

Life of this patent

Fine-adjustment mechanism to preset a miter saw for precision miter cuts

Life of this patent

Abstract

Claims20