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US 2019/0299306 A1Published application
Miter saw
AssigneeBlack & Decker Inc.
InventorsWarren A. Ceroll, Torrey R. Lambert, Corey Jacob Salemi
Life of this patent
Estimating the term…
Abstract
A miter saw has a base assembly, a table rotatably disposed on the base assembly, a support section rotatably connected to the table, a guide bar fixedly attached to and extending forwardly from the support section, and a saw assembly sliding along the guide bar. The saw assembly is pivotable downwardly for cutting a workpiece disposed on the table. A handle is disposed adjacent to a forward end of the guide bar. The handle is movable between a first position for fixing a rotational position of the support section relative to the table, and a second position for allowing rotational movement of the support section relative to the table.
Claims10
1:
- A miter saw comprising:
- a base assembly,
- a table rotatably disposed on the base assembly,
- a support section rotatably connected to the table,
- a guide bar fixedly attached to and extending forwardly from the support section,
- a saw assembly sliding along the guide bar, the saw assembly being pivotable downwardly for cutting a workpiece disposed on the table, and
- a handle disposed adjacent to a forward end of the guide bar, the handle being movable between a first position for fixing a rotational position of the support section relative to the table, and a second position for allowing rotational movement of the support section relative to the table.
4 more elements
2:
- The miter saw of claim 1, further comprising:
- a shaft connected to the handle and extending through the guide bar,
- a belt driven by the shaft,
- a gear rotatably driven by the belt,
- a nut contacting and being slidable relative to the gear, and
- a locking shaft fixedly attached to the table and threadingly engaging the nut.
3 more elements
3:
- The miter saw of claim 1, further comprising:
- a shaft connected to the handle and extending through the guide bar, the shaft having a first portion extending through the support section,
- wherein the shaft has a second portion that is engagable with an opening in the table for fixing the rotational position of the support section relative to the table.
4:
- The miter saw of claim 3, further comprising a spring disposed between the handle and the guide bar for biasing the handle towards the first position.
5:
- The miter saw of claim 1, further comprising:
- a shaft connected to the handle and extending through the guide bar,
- a first bevel gear connected to the shaft,
- a second bevel gear meshing with the first bevel gear,
- a locking shaft extending through a flange fixedly attached to the table, and
- a nut threadingly engaged by the locking shaft.
3 more elements
6:
- The miter saw of claim 1, further comprising:
- a shaft connected to the handle and extending through the guide bar,
- a gear fixedly attached to the shaft;
- a rack plate meshing with the gear;
- a cam connected to the rack plate;
- a detent plate contacted by the cam, wherein the detent plate is movable between a first position contacting an aperture disposed on a plate connected to the table and a second position not contacting the aperture, whereby, rotational movement of the support section relative to the table is allowed when the detent plate is moved to second position.
3 more elements
6:
- The miter saw of claim 5, wherein the detent plate is resilient and biased towards the first position.
7:
- The miter saw of claim 1, further comprising:
- a shaft pivotably connected to the handle and extending through the guide bar,
- a locking shaft attached to the table, and
- a lock assembly attached to the locking shaft.
1 more element
8:
- The miter saw of claim 7, wherein the locking assembly comprises:
- a cam support;
- a cam pivotably connected to the cam support, the cam being operationally connected to the handle;
- and
- a frame contacting the support section and extending through the cam support.
2 more elements
9:
- The miter saw of claim 8, wherein the locking assembly further comprises a spring disposed between the frame and the cam support.