Abstract: A grinder can include a stopper projection provided to a grinding stone cover and position a stopper abutting portion on a side of a gear housing in order to restrict a position adjustable range through abutment of the stopper projection to the stopper abutting portion in a position where the grinding stone cover has rotated in a rotational direction of the grinding stone by a set angle.
Abstract: A hand-held power tool system has a hand-held power tool, a guard unit, and a guard anti-rotation lock unit preventing rotation between the guard unit and the hand-held power tool during breakdown of a tool of the hand-held power tool and configured to prevent rotation between the guard unit and the hand-held power tool at a same time as the guard unit is being attached to the hand-held power unit when the guard unit is in a working position, the guard anti-rotation lock unit is at least partially located on a closing unit which includes a clamping band and a pivotable lever, and the anti-rotation lock unit includes at least one anti-rotation lock element provided on the lever.
Type:
Grant
Filed:
October 17, 2011
Date of Patent:
July 31, 2012
Assignee:
Robert Bosch GmbH
Inventors:
Cornelius Boeck, Joachim Schadow, Sinisa Andrasic
Abstract: A drywall sanding implement having a shaft, a yoke attached to the shaft, a block pivotably mounted to the yoke, a pair of spindles mounted to the block, and a sanding block removably mounted on each spindle.
Abstract: An angle attachment for a hand-held power tool, such as a spiral cutting tool, includes an angle attachment housing having an open first end adapted to be attached to the motor housing of the power tool. An alignment bearing is mounted in the angle attachment housing and adapted to receive and support a first shaft having a first shaft gear mounted thereon. An attachment shaft is mounted in the angle attachment housing at an angle, e.g., a right angle, to the first shaft. The attachment shaft includes an attachment shaft gear mounted thereon which is engaged with the first shaft gear. One or more attachment shaft bearings are mounted in the angle attachment housing to support the attachment shaft for rotational movement thereof. The first shaft is coupled to a motor shaft of the power tool before the angle attachment housing is attached to the power tool motor housing.
Abstract: An angle attachment of a hand-held power tool, such as a spiral cutting tool, includes an angle attachment housing having an open first end adapted to be attached to the motor housing of the power tool. An alignment bearing is mounted in the angle attachment housing and adapted to receive and support a first shaft having a first shaft gear mounted thereon. An attachment shaft is mounted in the angle attachment housing at an angle, e.g., a right angle, to the first shaft. The attachment shaft includes an attachment shaft gear mounted thereon which is engaged with the first shaft gear. One or more attachment shaft bearings are mounted in the angle attachment housing to support the attachment shaft for rotational movement thereof. The first shaft is coupled to a motor shaft of the power tool before the angle attachment housing is attached to the power tool motor housing.