Method and apparatus for automatically adjusting a miter saw fence

Patent metadata

Field	Value
Publication number	US-9833924-B2
Application number	US-54136409-A
Country	US
Kind code	B2
Filing date	Aug 14, 2009
Priority date	Aug 22, 2008
Publication date	Dec 5, 2017
Grant date	Dec 5, 2017

Abstract

A miter saw is provided. The miter saw includes a table for supporting a workpiece; a fence located on the table; and a beveling arm for supporting a saw blade, the fence operatively connected to the arm to move the fence when the blade is beveled so that the blade does not contact the fence when the blade is moved toward the table. A method of locating a workpiece near a saw blade is provided. The method may include moving an adjustable section of fence near a path the saw blade will travel by beveling the saw blade; and moving a workpiece to contact the fence near the saw blade path.

First claim

What is claimed is:

1. A miter saw comprising:
a table for supporting a workpiece;
a first fence located on the table; and
a beveling arm rotatable connected to the table for supporting a saw blade and allowing the saw blade to be inclined relative to the table, and
a non-electric means for automatically moving the first fence when the beveling arm is rotated to incline the saw blade;
wherein, after the first fence is moved, the saw blade does not contact the first fence when the saw blade is moved toward the table to a cutting position.

2. The miter saw of claim 1 , wherein the first fence is comprised of first and second portions, wherein the first portion is movable relative to the second portion.

3. The miter saw of claim 2 , wherein the non-electric means comprises a link pivotably attached to, the first and second portions.

4. The miter saw of claim 3 , wherein the non-electric means further comprises a cable connecting the link to the beveling arm.

5. The miter saw of claim 2 , wherein the non-electric means further comprises a member attached to the first portion and connected to the beveling arm.

6. The miter saw of claim 5 , wherein the member is at least one of a rod and a bar.

7. The miter saw of claim 2 , wherein the non-electric means comprises a shaft rotatably disposed on at least one of the beveling arm and the table, wherein the shaft rotates when the beveling arm is rotated relative to the table, the shaft's rotation causing movement of the first portion.

8. The miter saw of claim 7 , wherein the first portion has a rack, and the shaft has a pinion meshingly engaging the rack.

9. The miter saw of claim 1 , further comprising a second fence located on the table; wherein the second fence is operatively connected to the beveling arm to move the second fence when the blade is beveled so that the blade does not contact the second fence when the blade is moved toward the table.

10. The miter saw of claim 9 , wherein the second fence is comprised of first and second portions, wherein the first portion is movable relative to the second portion.

11. The miter saw of claim 10 , wherein the first fence has a slot for receiving the blade when the blade is moved toward the table.

12. The miter saw of claim 11 , wherein the first fence has at least one finger, and the second fence has at least one slot for receiving the finger.

13. The miter saw of claim 1 , wherein the non-electric means comprises a cable connecting to the beveling arm and to the first portion.

14. The miter saw of claim 13 , wherein the cable locks a position of the first portion relative to the second portion when the blade is moved toward the table.

Assignees

• Gehret Robert S
• Schell Craig A
• Meredith Daryl S
• Lambert Torrey R
• Ayala Adan
• Black & Decker Inc

Inventors

• Gehret Robert S
• Schell Craig A
• Meredith Daryl S
• Lambert Torrey R
• Ayala Adan

Classifications

• Y10T83/7726

  By movement of the tool · CPC title

• B23D59/005

  for preventing collision of saw blades with other machine parts or workpieces · CPC title

• B27B27/10 Primary

  Devices for moving or adjusting the guide fences or stops · CPC title

• Y10T83/7697

  Tool angularly adjustable relative to work-support · CPC title

• B23D47/132

  of means to position the saw blade at a specified angle when adjusting about an axis perpendicular to the work support surface · CPC title