Hook blade accessory tool for an oscillating tool

Patent metadata

Field	Value
Publication number	US-10532472-B2
Application number	US-201213343046-A
Country	US
Kind code	B2
Filing date	Jan 4, 2012
Priority date	Jan 4, 2012
Publication date	Jan 14, 2020
Grant date	Jan 14, 2020

Abstract

An accessory tool for an oscillating power tool includes a mounting portion and a blade portion that extends from the mounting portion. The blade portion includes a first lateral edge portion, a second lateral edge portion, and a leading edge portion. A cutting edge is defined in the second lateral edge portion that includes a rearward facing portion that extends generally laterally from a distal end portion of the second lateral edge portion toward the first lateral edge portion and a forward facing cutting edge portion that extends from said second lateral edge portion toward said first lateral edge portion. The rearward facing cutting edge portion is at least partially interposed between the leading edge portion and the mounting portion, and the forward facing cutting edge portion is at least partially interposed between the rearward facing cutting edge portion and the mounting portion.

First claim

What is claimed is:

1. An accessory tool for an oscillating power tool, the accessory tool comprising:
a body having:
a drive mount portion located at one end of said body and configured to mate with an oscillating drive member of a power tool, the drive mount portion residing primarily in a first plane;
an interface portion integrally formed with the drive mount portion, the interface portion extending generally forwardly from the drive mount portion and including a blade mounting portion, the interface portion being angled with respect to the drive mount portion such that the blade mounting portion is offset from the first plane; and
a blade portion permanently attached to the interface portion, the blade portion extending forwardly from the blade mounting portion, said blade portion including a first lateral edge portion, a second lateral edge portion, and a leading edge portion, said first and said second lateral edge portions each extending generally forwardly from said blade mounting portion, said leading edge portion extending generally laterally between a distal end portion of first lateral edge portion and a distal end portion of said second lateral edge portion, the blade portion including a cutting edge portion defined in said second lateral edge portion, said cutting edge portion including:
i) a rearward facing portion that extends generally laterally from said distal end portion of said second lateral edge portion toward said first lateral edge portion to a recessed position that is located substantially half way across a width of the blade portion between said first lateral edge portion and said second lateral edge portion, and
ii) a forward facing portion that extends generally laterally from an intermediate portion of said second lateral edge portion to said recessed position to meet said rearward facing portion,

wherein said leading edge portion includes a convex-shaped portion and a concave-shaped portion, the convex-shaped portion and the concave-shaped portion meeting at a transition portion,
wherein said convex-shaped portion and said rearward facing portion of said cutting edge portion together define a hook,
wherein said convex-shaped portion meets said rearward facing portion to define a first pointed tip portion for the hook,
wherein said concave-shaped portion meets said distal end portion of said first lateral edge portion to define a second pointed tip portion,
wherein the convex-shaped portion of the leading edge portion is located forwardly of the second pointed tip portion,
wherein said concave-shaped portion includes a cutting edge portion, wherein said rearward facing portion is at least partially interposed between said leading edge portion and said mounting portion,
wherein said forward facing cutting edge portion is at least partially interposed between said rearward facing portion and said mounting portion, and
wherein said rearward facing portion of said cutting edge portion and said convex-shaped portion of said leading edge portion are generally uniformly spaced apart from each other from the transition portion to a forwardmost portion of said convex-shaped portion such that the hook has a generally uniform width from the transition portion to the forwardmost portion.

2. The accessory tool of claim 1 , wherein:
said rearward facing cutting edge portion has a generally concave shape.

3. The accessory tool of claim 1 , wherein:
said first pointed tip portion is oriented generally laterally; and
said second pointed tip portion is oriented generally forwardly.

4. The accessory tool of claim 1 , wherein:
said cutting edge portion of said second lateral edge portion and said cutting edge portion of said concave-shaped portion of said leading edge portion each comprise a razor sharp cutting edge.

Assignees

• Maras Verica
• Jerome Gavin
• Knoles Brian
• Rubens Jeremy
• Bosch Tool Corp
• Bosch Gmbh Robert

Inventors

• Maras Verica
• Jerome Gavin
• Knoles Brian
• Rubens Jeremy

Classifications

• B26B7/00 Primary

  Hand knives with reciprocating motor-driven blades · CPC title

• B26B3/08

  specially adapted for cutting cardboard, or wall, floor, or like covering materials · CPC title

• B26B9/02

  characterised by the shape of the cutting edge, e.g. wavy · CPC title

• B26B5/005

  specially adapted for cutting cardboard, or wall, floor or like covering materials · CPC title