# US 11,305,454 B2 · Moveable saw fence and saw support

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- Number: US 11,305,454 B2
- Document ID: US11305454B2
- Status: Granted
- Kind: B2
- Application number: 17/084,358
- Filed: 2020-10-29
- Published: 2021-05-06
- Granted: 2022-04-19
- Earliest claimed: 2019-10-30
- Applicants: William Charles Shaw
- Inventors: William Charles Shaw
- Web page: https://patentgrep.com/patent/US11305454B2

## CPC

- B23D 45/044: {the saw blade being adjustable according to angle of cut (B23D45/025 takes precedence)}
- B27B 27/08: arranged adjustably, not limited to only one of the groups B27B27/02 - B27B27/06
- B23D: PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR (making toothed gears or the like B23F; cutting metal by applying heat locally B23K; arrangements for copying or controlling B23Q)
- B27B: SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR (saws specially adapted for pruning or debranching A01G3/08; sawing apparatus specially adapted for felling trees A01G23/091; features not restricted to a particular type of wood saw B23D, e.g. attaching saw blades B23D51/00; machine tool frames, beds, pillars or like members, in general B23Q1/01)

## Abstract

A miter saw includes a base, a horizontal table supported by the base, an arm pivotably coupled to the base at a rear pivot point configured to permit the arm to pivot about a horizontal axis, a circular saw blade arbor supported by the arm at a location spaced forward from the rear pivot point, and a circular saw blade supported by and concentric with the arbor. The saw blade is configured to be driven to cut a workpiece on the horizontal table. The rear pivot point permits the blade to move along an arc in a vertical plane perpendicular to the horizontal table. Between a rear edge of the arbor and a rear edge of the blade, the arm extends substantially above the height of the blade to allow substantially the entire blade area rearward of the rear edge of the arbor to be available for cutting the workpiece.

## Claims

### Claim 1

A miter saw comprised of:
a base;
a horizontal table supported by the base, the table having an upper surface;
a fence coupled relative to the table and extending vertically upward from the table and being located between the rear edge of the blade arbor and the rear pivot point when the blade is driven, the fence configured to move for and aft relative to the base between a forwardmost position and a rearmost position;
a support arm pivotably coupled to the base at a rear pivot point configured to permit the arm to pivot about a horizontal axis;
a circular saw blade arbor supported by the support arm at a location spaced forward from the rear pivot point; and
a circular saw blade supported by and concentric with the blade arbor, the saw blade configured to be rotatably driven to cut a workpiece supported on both the horizontal table and the fence, the saw blade having a rear edge facing the rear pivot point,
wherein the pivotal coupling at the rear pivot point permits the blade to move along a predetermined arc in a vertical plane perpendicular to the horizontal table from a vertically elevated first position in which a bottom of the blade is higher than the rear pivot point to a vertically lower second position in which the bottom of the saw blade extends below the upper surface of the table, and
wherein between the rear edge of the blade arbor and the fence in the rearmost position of the fence, the support arm extends substantially above the height of the saw blade to allow clearance to cut the workpiece without interference from the support arm as the saw blade is moved along the predetermined arc and substantially all of the saw blade height between the rear edge of the blade arbor and the rear edge of the saw blade and in front of the fence is exposable to pass through the cut workpiece.

### Claim 2 (depends on 1)

The miter saw according to claim 1, wherein:
the arm and the blade are configured to rotate together about a vertical axis.

### Claim 3 (depends on 1)

The miter saw according to claim 1, further comprising:
a linear measurement scale displayed on a portion of the table that is fixed relative to the base, said scale indicating a measured displacement of the fence relative to the table.

### Claim 4 (depends on 1)

The miter saw according to claim 1, further comprising:
a crown stop displaceably coupled to the fence; and
a linear measurement scale indicating a measured displacement of the crown stop relative to the fence.

### Claim 5 (depends on 1)

The miter saw according to claim 1, wherein:
at least one fence extending vertically from a portion of the table and forming the fence forms an intersection with the table, the fence and table defining surfaces against which a material to be cut is supported, the at least one fence moveable in a fore and aft direction relative to the base between the rear edge of the blade arbor and rear pivot point,
the fence having at least one configuration relative to the table such that when the saw blade is rotated completely through the predetermined arc and extends at least partially below the table, the saw blade does not pass through the intersection.

### Claim 6 (depends on 5)

The miter saw according to claim 5, further comprising:
a crown stop coupled to the at least one moveable fence and moveable relative to the at least one fence, wherein the crown stop is adapted to be moved fore and aft as the at least one fence is moved fore and aft.

### Claim 7 (depends on 6)

The miter saw according to claim 6, further comprising:
a linear measurement scale displayed on a moveable portion of the table, said scale indicating a measured displacement of the moveable crown stop relative to the at least one fence.

### Claim 8

In a miter saw comprised of a base, a horizontal table supported by the base, an arm pivotably coupled to the base at a rear pivot point configured to permit the arm to pivot about a horizontal axis, and a circular saw blade arbor supported by the arm at a location spaced forward from the rear pivot point, and a circular saw blade supported by and concentric with the blade arbor, the saw blade configured to be driven to cut a workpiece on the horizontal table, the workpiece being a crown molding positioned in a sprung position between the fence and the table, wherein the rear pivot point permits the blade to move along a predetermined arc in a vertical plane perpendicular to the horizontal table, the predetermined arc extending from a first position in which the blade arbor is located above the rear pivot point to a second location in which the blade arbor is located in front of the rear pivot point and the saw blade passes through a slot in the table to a set distance below the table, a vertical pivot setting a miter angle to the saw blade, the improvement comprising:
a fence extending from the table and forming an intersection with the table, the fence and table defining surfaces against which a material to be cut is supported, the surface of the fence defining a plane, wherein the fence displaceable fore and aft relative to the base between the rear edge of the blade arbor and the rear pivot point, the fence having at least one configuration such when the saw blade is rotated completely through the predetermined arc, the saw blade passes through the plane of the fence, but does not pass through the intersection, and completely cuts the workpiece while the material is supported against the surfaces of the table and the fence.

### Claim 9 (depends on 8)

The improvement according to claim 8, wherein:
the at least one fence and the table are moveable together in a fore and aft direction relative to the base.

### Claim 10 (depends on 8)

The improvement according to claim 8, further comprising:
a linear measurement scale indicating a measured displacement between the at least one fence and the base.

### Claim 11 (depends on 10)

The improvement according to claim 10, further comprising:
a crown stop displaceably coupled to the at least one fence, wherein the crown stop is configured to move fore and aft relative to the at least one fence.

### Claim 12 (depends on 11)

The improvement according to claim 11, wherein:
the crown stop is adapted to be moved fore and aft as the at least one fence is moved fore and aft.

### Claim 13 (depends on 12)

The improvement according to claim 12, further comprising:
a linear measurement scale indicating a measured displacement of the crown stop relative to the at least one fence.

### Claim 14 (depends on 8)

The improvement according to claim 8, wherein:
the arm extends substantially above the height of the blade to allow substantially all of the blade area both rearward of and vertically above and below the rear edge of the blade arbor to be able to move through the cut workpiece when the blade is not driven.