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Miter saw

a technology of miter saws and miters, which is applied in the field of miter saws, can solve the problems of increased cost, limited cutting capacity of miter saws, and inability to cut some of the larger boards

Inactive Publication Date: 2006-08-10
CHAIKOWSKY PETER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is an improved miter saw that includes a base assembly, a rotatable table, a saw assembly, and a pivot arm. The saw blade can be plunged below the table plane, and the area of the blade below the table plane is between about -14.4% and about -50% of the blade area. The technical effects of this invention include improved efficiency, accuracy, and stability during miter cutting.

Problems solved by technology

Typically, the cutting capacity of a miter saw is limited because of its blade size and / or geometry.
However, these miter saws cannot cut some of the larger boards, which are about six inches wide, true size.
But these are also more expensive, etc.

Method used

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Embodiment Construction

[0014] The invention is now described with reference to the accompanying figures, wherein like numerals designate like parts. Referring to FIGS. 1-5, a miter saw 10 has a base assembly 11. Base assembly 11 preferably includes a rotatable table 12 rotatably connected to the base assembly 11, which allows a user to change the saw blade miter angle as is well known in the art.

[0015] In addition, the miter saw 10 has a saw assembly 30 including a motor 17 (shown in broken lines) and a blade 14 driven by the motor 17. Preferably saw assembly 30 is pivotally connected to base assembly 11 (and / or table 12) via arm 8 to allow the user to move the blade 14 towards table 12 in a chopping action. Arm 8 may be connected to pivot joint 19 which allows the saw assembly 30 be pivoted about axis A, so as to pivot saw assembly 30 downwardly for cutting a workpiece, and / or about bevel axis B, so as to change the bevel angle between the blade 14 and the plane of base assembly 11 and / or table 12.

[001...

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Abstract

In accordance with the present invention, an improved miter saw is employed. The miter saw includes a base assembly, a rotatable table rotatably connected to the base assembly, the table having a table plane, a fence connected to the base assembly and having a fence plane, a saw assembly including a motor and a blade driven by the motor, the blade having a radius and a blade center, and a pivot arm pivotally attached to the table and pivotally supporting the saw assembly about a first axis substantially parallel to the table plane, allowing a user to plunge the blade below the table plane, wherein the distance between the first axis and the table plane is about 0.472 times the radius. Also, the distance between the first axis and the fence plane is about 1.45 times the radius, and the distance between the first axis and the blade center is about 1.882 times the radius. In addition, the distance between the blade center and the table plane is about 0.57 times the radius when the blade is plunged below the table plane.

Description

FIELD OF THE INVENTION [0001] This invention relates generally to miter saws. BACKGROUND OF THE INVENTION [0002] A typical miter saw has a base assembly, including a rotatable table rotatably connected to the base assembly, a saw assembly including a motor and a blade driven by the motor, a pivot arm pivotally attached to the base assembly and supporting the saw assembly, allowing a user to move the saw assembly towards and away from the base assembly for cutting a workpiece. A miter saw can be used for cutting crown molding, wood beams, etc. [0003] Typically, the cutting capacity of a miter saw is limited because of its blade size and / or geometry. For example, most currently available ten-inch non-sliding miter saws can cut nominal 4″ by 4″ and 2″ by 6″ wood beams. However, these miter saws cannot cut some of the larger boards, which are about six inches wide, true size. Accordingly, if a user wants to cut a board that is larger than the cutting capacity of the miter saw, the user ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B23D45/04
CPCB23D45/044B27B27/06Y10T83/7726Y10T83/7788Y10T83/7697Y10T83/7705
Inventor CHAIKOWSKY, PETER
Owner CHAIKOWSKY PETER