Robert Boschgmbh

Rainer Glauning

Wolf Matthias

Marcin Rejman

Alexander Osswald

Stefan Roepke

Volker Bosch

Gunter Flinspach

Arnim Fiebig

Hans-Joachim Baur

Guenter Lohr

Bernd Wirnitzer

Juergen Mack

Wilfried Kabatnik

Florian Schmehl

Jan Breitenbach

Wolf Zahn

Volker Doege

Thorsten Seidel

Josef Baumgartner

Cornelius Liebenow

Thomas Heinrich

Guenther Lohr

Stephan Keller

Peter Simpson

Tobias Hans

A handheld power tool battery pack includes a plurality of battery cells, which have a positive cell pole at one end and a negative cell pole at an opposite end, connecting conductors which are provided for electrically connecting the battery cells, a connecting side, and a side opposite the connecting side. The battery cells have one integrated cell connector which is provided for the purpose of making one of the cell poles of the battery cell electrically connectably available at the end of the other cell pole of the battery cell, and that the connecting conductors for electrically connecting the battery cells are situated only on the connecting side.

Handheld power tool battery pack

A hand tool module having an interconnection device, which has an interface. The interconnection device has, in addition to the interface, at least one auxiliary interface, which is provided to bidirectionally exchange at least power at least with one additional hand tool module and/or a hand tool.

Hand tool module

A protection apparatus for a machine tool, at least for protecting a workpiece surface against overheating, includes at least one sensor unit and at least one evaluation unit. The sensor unit has at least one sensor element. The sensor element detects at least one characteristic variable of a fluid flow provided for transporting material removed from a workpiece. The evaluation enables identification of at least one temperature of a workpiece surface of the workpiece to be machined via the machine tool based at least in part upon the at least one characteristic variable detected via the sensor unit.

Protection apparatus for a machine tool, at least for protecting a workpiece surface against overheating

A rechargeable battery pack for a handheld power tool, encompasses a housing and at least one interface unit for establishing a mechanical and electrical connection between the rechargeable battery pack and the handheld power tool and/or a charging device. The interface unit has at least one locking element for locking the rechargeable battery pack onto the handheld power tool, and an actuation element for actuating the locking element. The actuation element encompasses at least one light-emitting element for outputting an optical signal and/or for illumination.

Rechargeable battery pack for a handheld power tool

The present invention relates to cutting tools, in particular, to control systems for cutters such as vegetation cutters, especially hedge cutters or trimmers (). Hedge cutters () frequently suffer in use from a problem of blocked cutting blades when they encounter a twig or branch whose size or density exceeds the capacity of the blades. We describe a vegetation cutting apparatus () having a plurality of cutting blades (), at least one of which blades () is drivable by an electric motor. At least one driven blade () is movable between two predefined points of maximum travel. The apparatus () includes a control mechanism which causes a change of direction in the movement of the at least one movable blade at a point intermediate the points of maximum travel in response to an event sensed by the control mechanism.

Reciprocating cutting tool

A battery pack includes an electrical energy store, a data memory and an interface for the alternative connection of the battery pack to a data source or a data sink. The data memory is designed to receive data from the data source while the interface is connected to the data source, and to supply the data in the data memory to the data sink while the interface is connected to the data sink.

Data transmission using an electrical machine

A device for determining the charge state of an accumulator and having a charging current supply unit that can be operated in a plurality of charging modes is provided. When the storage charge mode is activated, the accumulator is charged only up to a predefined, optimized partially charged state. If the charge state determined at the start of the storage charge mode is higher than the predefined partially charged state, then the discharging device discharges the accumulator as far as the predefined partially charged state.

Device for charging an accumulator and having a storage charge mode

A handheld tool having a battery interface is described, in which a provision is made for the handheld tool to have at least one measuring device interface, which is provided to receive at least data containing measuring information of a handheld tool add-on measuring device.

Handheld tool, handheld tool add-on measuring device and handheld tool battery

An electric hand-held power tool includes at least one electrical drive, at least one electrical device that requires electrical energy in order to operate, a shut-off delay device for the electrical drive and/or the electrical device, at least one rechargeable battery for supplying electrical energy to the drive and the electrical device and an exhaustive-discharge safeguard device. The exhaustive-discharge safeguard device specifies the delay time (&#x394;t) of the shut-off delay device as a function of the state of charge of the rechargeable battery it has determined.

Electric hand-held power tool with a shut-off delay device

An energy storage pack for an electric power tool comprising a housing for reception of a plurality of cell blocks having electrochemical storage cells, as well as electrical pole terminals to which poles of the cell blocks are electrically connectable. At least one pole terminal is embodied as a subassembly that encompasses two electrically separated contacts.

Energy storage pack for an electric power tool, and electric power tool

An equipment system includes a battery unit () having a monitoring circuit (), which detects at least one operating parameter of the battery unit () and furnishes a control signal, dependent on the operating parameter, for switching means (). The switching means control the charging and discharging process of the battery unit () and are located in the electrical device () and in the charger (), respectively. From the battery unit (), the control signal is transmitted to the switching means () in the electrical device () and in the charger (), respectively. By this provision of shifting the switching means () out of the battery unit () into the electrical device () and into the charger (), respectively, the heat development in the battery unit () and also its structure size are reduced.

Equipment system comprising a battery-operated electrical device, a rechargeable battery unit, and a battery charger

The invention is based on a rechargeable battery charging case, in particular a cordless handheld power tool case, having at least one battery attachment device and a case body. It is proposed that the rechargeable battery charging case has an electrical energy output and a supply unit, which in at least one operating state is connected to the energy output and to the battery attachment device for supplying the energy output.

Rechargeable battery charging case with a supply unit for supplying energy

An electric machine tool may include an interface via which the electric machine tool can be mechanically and electrically connected to a battery pack. A coupling apparatus may be provided, which can be mechanically and electrically connected to the electric machine tool via the interface. The coupling apparatus may include a first battery interface for connection to a first battery pack and a second battery interface for connection to a second battery pack.

Electric machine tool

The invention is based on a spare handheld power tool module, having at least one interface that has at least one contact region and at least one electrical contact that is disposed at least partly in the contact region. It is proposed that the interface has at least one closure unit, which is provided for covering the contact region.

Growing community of inventors

Aichtal-Groetzingen, Germany

Rainer Glauning