Patent · US Active

Protective hood rotation prevention device

US9333622B2 · kind B2 · utility

0Cited by

13References

19Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Daniel Barth · Echterdingen, DE
Joachim Schadow · Stuttgart, DE
Sinisa Andrasic · Schenefeld, DE

Key dates

Filing date	Nov 20, 2012
Grant date	May 10, 2016
Priority date	—
Expiry date	Nov 28, 2032

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB24B55/05
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A protective hood rotation prevention device for a power tool, in particular an angle grinder, includes a clamping unit that is configured to clamp a protective hood unit. The clamping unit includes at least one clamping element with a rotation prevention unit that has a rotation prevention element. The device further includes a movement coupling unit that is configured to move the rotation prevention element in at least one operating state depending on a movement of the clamping element. The device also includes a securing unit that is configured, in at least one operating state, to secure the rotation prevention element, in the event of a movement of the clamping element in a loosening direction of the clamping element, at least as far as possible counter to a movement in an uncoupling direction of the rotation prevention element out of a rotation prevention position of the rotation prevention element.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.