US 7,596,872 B2 · Cutting attachment with a removable cover for rotary hand tools

Abstract

Embodiments of an accessory attachment for a rotary power hand tool are disclosed wherein the hand tool is of the type which has a tool housing with a preferably cylindrical nose portion, a motor having a motor drive shaft with a mounting coupling extending forwardly from the nose portion for receiving a drive shaft, the attachment including a housing having a first end portion configured to be mounted to the tool housing nose portion and an input shaft for coupling to the motor drive shaft, and having an enlarged second end portion oriented at a right angle relative to the first end portion and also having an output shaft coupled to the input shaft at a preferably right angle relative thereto, a rotary cutting wheel mounted to the output shaft and substantially disposed within the enlarged second end portion, excepting an exposed portion of the rotary cutting wheel for engaging a work surface, and a removable cover configured to engage said enlarged second end portion to at least partially enclose said rotary cutting wheel therebetween.

Claims21

Dependent claims

An accessory attachment for a rotary power hand tool of the type which has a tool housing with a nose portion, a motor having a motor drive shaft with a mounting coupling extending forwardly from the nose portion for receiving a drive shaft, said attachment comprising:

a housing having first and second end portions, said first end portion configured to be mounted to the tool housing nose portion and an input shaft for coupling to the motor drive shaft, said second end portion oriented at an angle relative to said first end portion and having an output shaft coupled to said input shaft at an angle relative thereto;
a rotary cutting wheel mounted to said output shaft and substantially disposed within said second end portion, excepting an exposed portion of said rotary cutting wheel for engaging a work surface;
a mounting flange for clamping said rotary cutting wheel to said output shaft of said accessory attachment, said mounting flange having a hexagonal mounting portion, an enlarged flange portion having a contacting surface, a threaded extension with a threaded end portion, said flange portion being integrally formed with the hexagonal mounting portion and
a removable cover configured to engage said second end portion to at least partially enclose said rotary cutting wheel therebetween.

1 more element

a housing having first and second end portions, said first end portion configured to be mounted to the tool housing nose portion and an input shaft for coupling to the motor drive shaft, said second end portion oriented at an angle relative to said first end portion and having an output shaft coupled to said input shaft at an angle relative thereto;
a rotary cutting wheel mounted to said output shaft and substantially disposed within said second end portion, excepting an exposed portion of said rotary cutting wheel for engaging a work surface;
wherein said rotary cutting wheel comprises a dome-shaped cutting wheel having a recessed hub portion with a flat center hub portion in which a mounting opening is located and an annular outer flange, said annular flange having side faces and an outer peripheral cutting surface;
a removable cover configured to engage said second end portion to at least partially enclose said rotary cutting wheel therebetween;
and
a mounting flange for clamping said rotary cutting wheel to said output shaft of said accessory attachment, said mounting flange having a hexagonal mounting portion, an enlarged flange portion having a contacting surface, a threaded extension with a threaded end portion, said flange portion being integrally formed with the hexagonal mounting portion.

3 more elements

Dependencies are inferred from the claim text.

Cutting attachment with a removable cover for rotary hand tools

Life of this patent

Cutting attachment with a removable cover for rotary hand tools

Life of this patent

Abstract

Claims21