Method of operating a power tool with a protected coupling plate

Patent metadata

Field	Value
Publication number	US-10507537-B2
Application number	US-201815899668-A
Country	US
Kind code	B2
Filing date	Feb 20, 2018
Priority date	Mar 12, 2015
Publication date	Dec 17, 2019
Grant date	Dec 17, 2019

Abstract

A method of mounting a capacitive coupling plate to a power tool assembly including a drop arm assembly, an actuating device configured to transfer a force to the drop arm assembly, and a control system configured to control the actuating device includes connecting a capacitive coupling plate bracket formed from a non-conductive material to a drop arm frame of the drop arm assembly, and mounting the capacitive coupling plate to the capacitive coupling plate bracket.

First claim

The invention claimed is:

1. A method of mounting a capacitive coupling plate to a power tool assembly including a drop arm assembly, an actuating device configured to transfer a force to the drop arm assembly, and a control system configured to control the actuating device, comprising:
connecting a capacitive coupling plate bracket formed from a non-conductive material to a drop arm frame of the drop arm assembly; and
mounting the capacitive coupling plate to the capacitive coupling plate bracket.

2. The method of claim 1 , wherein connecting the capacitive coupling plate bracket comprises:
inserting each of a plurality of protuberances of the capacitive coupling plate bracket into a respective one of a plurality of wells defined in the drop arm frame; and
threadedly engaging each of the inserted plurality of protuberances with a respective set screw within each of the respective one of the plurality of wells.

3. The method of claim 2 , wherein inserting each of the plurality of protuberances comprises positioning a first side of the capacitive coupling plate bracket in opposition to the drop arm frame, the method further comprising:
mounting the capacitive coupling plate to a second side of the capacitive coupling plate bracket which is opposite to the first side, the second side including a raised lip extending at least partially about a perimeter of the second side of the capacitive coupling plate bracket.

4. The method of claim 3 , wherein;
the raised lip has a first height;
the capacitive coupling plate has a second height; and
the first height is greater than the second height.

5. The method of claim 1 , wherein mounting the capacitive coupling plate further comprises mounting the capacitive coupling plate such that:
a first end portion is proximate an orbit axis about which drop arm assembly is configured to orbit, and a second end portion opposite the first end portion is distal to the orbit axis; and
a center of mass of the capacitive coupling plate is located closer to the first end portion than to the second end portion.

6. The method of claim 5 , wherein the capacitive coupling plate comprises:
a conductive plate portion; and
a non-conductive coating over the conductive plate portion.

7. The method of claim 6 , wherein:
the conductive plate portion comprises steel; and
the non-conductive coating over the conductive plate portion comprises manganese phosphate.

8. The method of claim 6 , wherein:
the conductive plate portion comprises aluminum; and
the non-conductive coating over the conductive plate portion comprises anodized aluminum.

9. The method of claim 1 , further comprising:
operably connecting the mounted capacitive coupling plate to the control system.

10. The method of claim 9 , wherein operably connecting the mounted capacitive coupling plate to the control system comprises:
connecting a coaxial cable to a connector tab extending from the mounted capacitive coupling plate.

Assignees

• Bosch Tool Corp
• Bosch Gmbh Robert

Inventors

• Doumani Robert S
• Laliberte Eric
• Szweda Timothy
• Taylor Brian

Classifications

• B23D59/002 Primary

  for the position of the saw blade (mounting for swiveling or tilting a circular saw blade B27B5/36; portable power-driven circular saws with adjustment for cutting depth or amount of tilting B27B9/02) · CPC title

• B23D45/067 Primary

  the saw blade being adjustable according to depth or angle of cut · CPC title

• Y10T83/773

  Work-support includes passageway for tool [e.g., slotted table] · CPC title

• B23D47/08

  of devices for bringing the circular saw blade to the workpiece or removing same therefrom · CPC title

• B27G19/02

  for circular saws · CPC title