Saw blade for oscillating tool or handheld tool

Patent metadata

Field	Value
Publication number	US-10442020-B2
Application number	US-201514983124-A
Country	US
Kind code	B2
Filing date	Dec 29, 2015
Priority date	Dec 29, 2015
Publication date	Oct 15, 2019
Grant date	Oct 15, 2019

Abstract

An accessory for a power tool includes a blade and a coupling. The coupling includes a blade portion, a tool portion, and a transition. The blade portion is fixedly coupled to the blade. The tool portion is configured to be removably coupled to the power tool. The tool portion also includes an opening. The transition extends between the blade portion and the tool portion, and the transition includes a first transition region, where the transition intersects with the blade portion, and a second transition region, where the transition intersects with the tool portion. The first transition region includes a first arc having a center that is arranged between the first arc and the opening, and the second transition region includes a second arc having a center that is arranged between the second arc and the opening.

First claim

What is claimed is:

1. An accessory for a power tool, comprising:
an axis of rotation about which the accessory is configured to rotate;
a blade; and
a coupling, including:
a blade portion fixedly coupled to the blade;
a tool portion configured to be removably coupled to the power tool, the tool portion including an opening arranged about the axis of rotation; and
a transition extending between the blade portion and the tool portion, the transition including a first transition region where the transition intersects with the blade portion, the transition including a second transition region where the transition intersects with the tool portion,
wherein the first transition region includes a first arc having a center that is arranged between the first arc and the axis of rotation, and
wherein the second transition region includes a second arc having a center that is arranged between the second arc and the axis of rotation.

2. The accessory as claimed in claim 1 , wherein a radius of the first arc is approximately equal to a radius of the second arc.

3. The accessory as claimed in claim 1 , wherein:
the blade portion defines a first plane, and
the tool portion defines a second plane.

4. The accessory as claimed in claim 3 , wherein the first arc is in the first plane.

5. The accessory as claimed in claim 3 , wherein the second arc is in the second plane.

6. The accessory as claimed in claim 3 , wherein the transition further includes a middle portion extending between the first transition region and the second transition region.

7. The accessory as claimed in claim 6 , wherein the middle portion defines a surface which is not parallel to the first plane or the second plane.

8. The accessory as claimed in claim 7 , wherein the surface is not planar.

9. The accessory as claimed in claim 7 , wherein the surface is at least partially dome shaped.

10. The accessory as claimed in claim 7 , wherein:
the surface is at least partially curved about an axis that is parallel to the axis of rotation.

11. The accessory as claimed in claim 7 , wherein:
the surface is at least partially curved about an axis that is perpendicular to the axis of rotation.

12. The accessory as claimed in claim 11 , wherein:
the surface is at least partially curved about an axis that is parallel to the axis of rotation.

13. The accessory as claimed in claim 1 , wherein:
the blade portion has a first blade portion end that is adjacent to the transition and a second blade portion end that is opposite the first blade portion end and is not adjacent to the transition; and
the first blade portion end has a first blade portion width and the second blade portion end has a second blade portion width that is different than the first blade portion width.

14. The accessory as claimed in claim 13 , wherein:
the blade has a first blade end that is coupled to the coupling and a second blade end that is opposite the first blade end and is not coupled to the coupling; and
the first blade end has a first blade width and the second blade end has a second blade width that is different than the first blade width.

15. The accessory as claimed in claim 14 , wherein the first blade width is approximately equal to the first blade portion width.

16. The accessory as claimed in claim 14 , wherein:
the blade portion has a first blade portion side extending from the first blade portion end to the second blade portion end;
the blade has a first blade side extending from the first blade end to the second blade end; and
the first blade portion side is aligned with the first blade side.

17. The accessory as claimed in claim 16 , wherein:
the first blade portion side is aligned with the first blade side in a direction parallel to the axis of rotation.

18. An accessory for a power tool, comprising:
an axis of rotation about which the accessory is configured to rotate;
a blade; and
a coupling, including:
a blade portion fixedly coupled to the blade;
a tool portion configured to be removably coupled to the power tool, the tool portion including an opening arranged about the axis of rotation; and
a transition extending between the blade portion and the tool portion, the transition including a first transition region where the transition intersects with the blade portion, the transition including a second transition region where the transition intersects with the tool portion, wherein:

the first transition region includes a first arc having a center that is arranged between the first arc and the axis of rotation,
the second transition region includes a second arc having a center that is arranged between the second arc and the axis of rotation,
the blade portion has a first blade portion end that is adjacent to the transition and a second blade portion end that is opposite the first blade portion end and is not adjacent to the transition,
the first blade portion end has a first blade portion width and the second blade portion end has a second blade portion width that is different than the first blade portion width, and
the second blade portion width is smaller than the first blade portion width.

19. An accessory for a power tool, comprising:
an axis of rotation about which the accessory is configured to rotate;
a blade; and
a coupling, including:
a blade portion fixedly coupled to the blade;
a tool portion configured to be removably coupled to the power tool, the tool portion including an opening arranged about the axis of rotation; and
a transition extending between the blade portion and the tool portion, the transition including a first transition region where the transition intersects with the blade portion, the transition including a second transition region where the transition intersects with the tool portion, wherein:

the first transition region includes a first arc having a center that is arranged between the first arc and the axis of rotation,
the second transition region includes a second arc having a center that is arranged between the second arc and the axis of rotation,
the transition has a first transition side that extends from the tool portion to the blade portion and a second transition side that is opposite the first transition side and extends from the tool portion to the blade portion,
the first transition region further includes at least one first curved portion extending from the first arc to one of the first transition side and the second transition side, and
the at least one first curved portion has a different center than the first arc.

20. The accessory as claimed in claim 19 , wherein:
the second transition region further includes at least one second curved portion extending from the second arc to one of the first transition side and the second transition side; and
the at least one second curved portion has a different center than the second arc.

Assignees

• Bosch Tool Corp
• Bosch Gmbh Robert

Inventors

• Dvorak Christopher Ryan
• Francis Noel
• Rubens Jeremy

Classifications

• B23D57/00 Primary

  Sawing machines or sawing devices not covered by one of the preceding groups B23D45/00 - B23D55/00 · CPC title

• B23D51/00

  Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts (constructional features of these parts per se B23Q; details or components, e.g. casings, bodies, of portable power-driven tools not particularly related to the operation performed B25F5/00); Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends · CPC title

• B27B19/006

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

• B23D61/006 Primary

  Oscillating saw blades · CPC title