Blade and blade attachment system for an oscillating tool

Patent metadata

Field	Value
Publication number	US-2017106457-A1
Application number	US-201515315125-A
Country	US
Kind code	A1
Filing date	Jun 16, 2015
Priority date	Jun 16, 2014
Publication date	Apr 20, 2017
Grant date	—

Abstract

A handheld oscillating tool includes a blade attachment system having a tool mounting portion configured to enable the tool mounting portion to be releasably secured to a tool holder of an oscillating tool such that the blade attachment system oscillates with the tool holder and a blade mounting portion configured to releasably retain a blade with a planar body of the blade arranged substantially perpendicular to the oscillation axis and with one of the leading edge and the trailing edge of the blade positioned forwardly with respect to the tool mounting portion.

First claim

What is claimed is:

1 . A handheld oscillating power tool comprising:
a portable housing; a motor enclosed within the housing; a tool holder extending from the housing and configured to be oscillated by the motor about an oscillation axis, the toolholder including an accessory attachment interface; a blade having a planar body with a leading edge, a trailing edge, a first lateral edge, and a second lateral edge, at least one of the leading edge and the trailing edge comprising a cutting edge; and blade attachment system including:
a tool mounting portion having a tool holder attachment interface, the tool holder attachment interface being configured to enable the tool mounting portion to be releasably secured to the tool holder such that the blade attachment system oscillates with the tool holder; and
a blade mounting portion configured to releasably retain the blade with the planar body arranged substantially perpendicular to the oscillation axis and with one of the leading edge and the trailing edge positioned forwardly with respect to the tool mounting portion.

2 . The power tool of claim 1 , wherein the tool holder includes a tool drive structure,
wherein the tool mounting portion has a generally planar body that defines an accessory drive structure, the accessory drive structure being configured to mate with the tool drive structure, and wherein the tool mounting portion is configured to be releasably secured to the tool holder by a fastening structure while the accessory drive structure is mated with the tool drive structure.

3 . The power tool of claim 2 , wherein the blade mounting portion is configured to retain the blade by clamping against the first and second lateral edges of the blade.

4 . The power tool of claim 3 , wherein the blade mounting portion includes a first spacer that extends downwardly from a first lateral side of the tool mounting portion and a second spacer that extends downwardly from a second lateral side of the tool mounting portion, and
wherein the first spacer includes a first planar support surface and the second spacer includes a second planar support surface, and wherein the planar body of the blade is positioned against the first and second planar support surfaces when the blade is retained by the blade mounting portion.

5 . The power tool of claim 4 , wherein the first spacer includes a first clamping structure that extends downwardly from the first planar support surface and the second spacer includes a second clamping structure that extends downwardly from the second planar support surface, and
wherein the first clamping structure and the second clamping structure are positioned to engage the first and second lateral edges of the blade when the blade is positioned in contact with the first and second planar support surfaces.

6 . The power tool of claim 5 , wherein the first clamping structure includes a cam member that is rotatably attached to the first spacer structure and a lever arm for rotating the cam member, the cam member being configured to be rotated by the lever arm to a clamping position, and
wherein the cam member has a clamping surface that is configured to apply a clamping force to one of the first and the second lateral edges of the blade when the cam member is in the clamping position.

7 . The power tool of claim 6 , wherein the leading edge and the trailing edge of the blade each comprise a cutting edge, and
wherein the first clamping structure and the second clamping structure are configured to retain the blade with either the leading edge or the trailing edge facing forwardly.

8 . The power tool of claim 7 , wherein the first clamping structure and the second clamping structure are configured to retain the blade with the cutting edge at different positions in front of the blade mounting portion.

9 . The power tool of claim 7 , wherein the first and the second lateral edges each comprise cutting edges, and
wherein the first clamping structure and the second clamping structure are configured to retain the blade with any one of the leading edge, the trailing edge, the first lateral edge, and the second lateral edge facing forwardly.

10 . The power tool of claim 7 , wherein the leading edge is wider than the trailing edge.

11 . The power tool of claim 7 , wherein the cutting edge on the leading edge and the cutting edge on the trailing edge have different configuration to facilitate cutting of different materials.

12 . A blade attachment system for an oscillating power tool, the blade attachment system comprising:
a tool mounting portion having a tool holder attachment interface, the tool holder attachment interface being configured to enable the tool mounting portion to be releasably secured to a tool holder of an oscillating power tool such that the blade attachment system oscillates with the tool holder; and a blade mounting portion configured to releasably retain a blade, the blade having a planar body with a with a leading edge, a trailing edge, a first lateral edge, and a second lateral edge, at least one of the leading edge and the trailing edge comprising a cutting edge, the blade mounting portion being configured to retain the blade with the planar body arranged substantially perpendicular to an oscillation axis of the tool holder and with one of the leading edge and the trailing edge positioned forwardly with respect to the tool mounting portion.

13 . The blade attachment system of claim 12 , wherein the tool mounting portion has a generally planar body that defines an accessory drive structure, the accessory drive structure being configured to mate with a tool drive structure on the tool holder, and
wherein the tool mounting portion is configured to be releasably secured to the tool holder by a fastening structure while the accessory drive structure is mated with the tool drive structure.

14 . The blade attachment system of claim 13 , wherein the blade mounting portion is configured to retain the blade by clamping against the first and second lateral edges of the blade.

15 . The blade attachment system of claim 14 , wherein the blade mounting portion includes a first spacer that extends downwardly from a first lateral side of the tool mounting portion and a second spacer that extends downwardly from a second lateral side of the tool mounting portion, and
wherein the first spacer includes a first planar support surface and the second spacer includes a second planar support surface, and wherein the planar body of the blade is positioned against the first and second planar support surfaces when the blade is retained by the blade mounting portion.

16 . The blade attachment system of claim 15 , wherein the first spacer includes a first clamping structure that extends downwardly from the first planar support surface and the second spacer includes a second clamping structure that extends downwardly from the second planar support surface, and
wherein the first clamping structure and the second clamping structure are positioned to engage the first and second lateral edges of the blade when the blade is positioned in contact with the first and second planar support surfaces.

17 . The blade attachment system of claim 16 , wherein the first clamping structure includes a cam member that is rotatably attached to the first spacer structure and a lever arm for rotating the cam member, the cam member being configured to be rotated by the lever arm to a clamping position, and
wherein the cam member has a clamping surface that is configured to apply a clamping force to one

Assignees

• Bosch Gmbh Robert

Inventors

• Rubens Jeremy

Classifications

• B23D51/10

  for hand-held or hand-operated devices · CPC title

• B27B19/006

  with oscillating saw blades; Hand saws with oscillating saw blades · CPC title

• B25F5/006

  Vibration damping means · CPC title

• B23D61/006 Primary

  Oscillating saw blades · CPC title

• B25F5/00 Primary

  Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for · CPC title