Circular saw

• US 9,027,449 B2
• Filed: 10/31/2008
• Issued: 05/12/2015
• Est. Priority Date: 12/21/2007
• Status: Expired due to Fees

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Simon, Stephan
• Primary Examiner(s): Peterson, Kenneth E
• Application Number:
  US12/747,954
• Publication Number:
  US 20100326251A1
• Time in Patent Office: 2,384 Days
• Field of Search: 831/021, 834/772
• US Class Current: 83/102.1
• CPC Class Codes: B27G 19/02 for circular saws
• CPC Class Codes: B27G 19/08 Accessories for keeping open the saw kerf, e.g. riving knives or wedge plates
• CPC Class Codes: Y10T 83/2077 By kerf entering guide
• CPC Class Codes: Y10T 83/6657 Tool opposing pusher
• CPC Class Codes: Y10T 83/85 Signal; e.g., alarm

Abstract

A circular saw including a saw blade (36) which may be rotatingly driven about a rotational axis, and at least one first splitting wedge is described. The circular saw is configured so that the first splitting wedge is movable relative to the rotational axis of the saw blade.

Claims

1. A circular saw, comprising:

a saw blade for being rotatingly driven about a rotational axis;

a workpiece support surface supporting a workpiece being cut by the saw blade;

a sensor unit calculating a distance between a surface of the workpiece and the workpiece support surface, wherein the sensor unit is capable of calculating the depth of a nonthrough cut;

at least one first splitting wedge swivelable about the rotational axis of the saw blade; and

a drive arrangement for swiveling the first splitting wedge about the rotational axis of the saw blade to a position where the first splitting wedge protrudes through the workpiece support surface based on the calculated distance between a surface of the workpiece and the workpiece support surface.