Robert Boschgmbh

Immanuel Werner

Andreas Strasser

Gerhard Meixner

Hardy Schmid

Matthias Tauber

Stefan Holst

Harald Schindler

Hansjoerg Beutel

Juergen Schlipf

A striking mechanism device for a hand-held power tool has at least one hammer tube, in particular made of sheet metal. The hammer tube is provided to guide a hammer and/or a drive piston. The hammer tube is seam-freely longitudinally slit over at least substantially the entire longitudinal extent of the hammer tube.

Striking mechanism device for a hand-held power tool

A hand-held power tool includes a tool receiver with a tubular tool holder and an assigned locking device. The assigned locking device includes a locking element configured to lock an insert tool in the tubular tool holder, a pressure sleeve that is spring-loaded via an assigned spring element, and a stop sleeve, the spring-loaded pressure sleeve configured to press the locking element in a locking position against the stop sleeve. The tubular tool holder includes at least one recess in which the locking element in the locking position is located, at least portionally. The stop sleeve has, on its inner circumference, at least one contact surface that is matched to an outer contour of the locking element such that a first surface contact between the at least one contact surface and the locking element is established in the locking position.

Hand-held power tool comprising a locking device

A hand-held power tool includes a tool receiver that includes a tubular tool holder configured to lock an insert tool therein by an assigned locking device via at least one locking element. The locking device includes a pressure sleeve that is spring-loaded via an assigned spring element, and a stop sleeve, the stop sleeve having a contact surface on its inner circumference, and the spring-loaded pressure sleeve pressing the at least one locking element in a locking position against the contact surface. The tubular tool holder has at least one recess in which the at least one locking element in the locking position is located, at least portionally, the at least one recess having a ramp-type guideway. The at least one locking element is displaceable along the ramp-type guideway from the locking position to an unlocking position.

A hand-held power tool includes an electric motor, a tool unit, and at least one operating unit. A motor switching unit is configured to sense a contact-pressure characteristic between the tool unit and the operating unit, and configured to switch the electric motor at least partially in dependence on the contact-pressure characteristic.

Hand-held power tool

A hand-held power tool includes a tool receptacle with which a tubular tool holder configured to receive an application tool is associated, and a locking device configured to lock the application tool in the tubular tool holder. The locking device locks the application tool in a locking position via at least one locking element in the tubular tool holder. The locking device has a locking sleeve and a pressure ring spring loaded via an associated spring element. The spring-loaded pressure ring is configured to force the locking sleeve into the locking position and, in the locking position, forces the at least one locking element against the tool holder.

Hand-held power tool having a locking device

A hand-held power tool includes at least one transmission housing, at least one single-stage transmission unit, at least one motor housing, and at least one compensating unit. The at least one transmission unit is disposed in the at least one transmission housing. The at least one compensating unit includes at least one movably mounted compensating mass element. The at least one compensating unit is disposed at least for the most part in the at least one transmission housing or between the at least one transmission housing and the at least one motor housing.

A transmission device, in particular for a hand-held power tool, includes a sliding member coupling that has at least three sliding members disposed about an axis of rotation. The transmission device also includes at least three spring elements that are configured to exert on the sliding members at least one force component that is directed radially outwards with respect to the axis of rotation. The spring elements are supported in each case by bearing devices of sliding members disposed contiguously about the axis of rotation.

Transmission device

The invention is based on a hammer drill and/or chisel hammer, having an impact mechanism unit, an impact mechanism housing and at least one damping unit. The invention proposes that the damping unit is arranged on the impact mechanism housing along a main extension direction of the impact mechanism unit.

Growing community of inventors

St. Johann, Germany

Immanuel Werner