Hand-held power tool having at least one machine-side contact element

Patent metadata

Field	Value
Publication number	US-11260502-B2
Application number	US-201615775595-A
Country	US
Kind code	B2
Filing date	Nov 2, 2016
Priority date	Dec 2, 2015
Publication date	Mar 1, 2022
Grant date	Mar 1, 2022

Abstract

A hand-held power tool, in particular an angle grinder, includes a gearing housing part and an accessory equipment. The gearing housing part includes at least one machine-side contact element. The accessory equipment includes at least one accessory equipment-side contact element. In the mounted state of the accessory on the hand-held power tool, the at least one machine-side contact element comes into contact with the at least one accessory-side contact element.

First claim

The invention claimed is:

1. A portable power tool, comprising:
a transmission housing part including at least one machine-side contact element;
a mechanical element;
a blocking element arranged in the transmission housing part and movable between a first position configured to mechanically block movement of the mechanical element such that the portable power tool cannot function, and a second position whereat movement of the mechanical element is not blocked by the blocking element; and
an accessory including at least one accessory-side contact element configured to be removably connected to the transmission housing part by the machine-side contact element, the accessory configured to contact the blocking element to move the blocking element from the first position to the second position when the accessory is fitted on the portable power tool, and the at least one machine-side contact element is configured to contact the at least one accessory-side contact element.

2. The portable power tool as claimed in claim 1 , wherein the mechanical element includes a switch element.

3. The portable power tool as claimed in claim 2 , wherein the switch element is a sliding switch.

4. The portable power tool as claimed in claim 1 , wherein the mechanical element includes a mechanical shaft.

5. The portable power tool as claimed in claim 4 , wherein the mechanical shaft is a motor shaft.

6. The portable power tool as claimed in claim 1 , wherein the mechanical element includes an output shaft.

7. The portable power tool as claimed in claim 6 , wherein the output shaft is a spindle.

8. The portable power tool as claimed in claim 1 , wherein:
the blocking element includes a stop; and
the mechanical element is configured to move against the stop of the blocking element when the accessory is not fitted on the portable power tool.

9. The portable power tool as claimed in claim 1 , wherein the blocking element includes a rotary joint.

10. The portable power tool as claimed in claim 9 , wherein:
when the accessory is fitted on the portable power tool, the blocking element is subjected to a force; and
the blocking element is configured to be moved about an axis of rotation of the rotary joint.

11. The portable power tool as claimed in claim 10 , wherein, in response to the blocking element rotating about the axis of rotation of the rotary joint, a stop of the blocking element is moved, such that the mechanical element is configured for movement in a direction of the transmission housing part and to switch on the portable power tool.

12. The portable power tool as claimed in claim 1 , wherein the accessory is a handle.

13. The portable power tool as claimed in claim 12 , wherein the at least one accessory-side contact element is a threaded pin of the handle.

14. The portable power tool as claimed in claim 1 , wherein the accessory is a protective hood.

Assignees

• Bosch Gmbh Robert

Inventors

• Schadow Joachim
• Stock Joern
• Esenwein Florian

Classifications

• H01H9/06

  Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner · CPC title

• B24B23/028

  Angle tools · CPC title

• B24B23/022

  Spindle-locking devices, e.g. for mounting or removing the tool · CPC title

• H01H3/58

  using friction, toothed, or other mechanical clutch · CPC title

• B25F5/026

  in the form of an auxiliary handle (B25F5/024 takes precedence) · CPC title