Abstract: A command can be input into a system using a data carrier such as, for example, a card. The command is determined based on the orientation of the data carrier relative to a reader of the system. Different commands can be input by changing the orientation of the data carrier.

Abstract: A command can be input into a system using a data carrier such as, for example, a card. The command is determined based on the orientation of the data carrier relative to a reader of the system. Different commands can be input by changing the orientation of the data carrier.

Abstract: A motor driven hand power tool has a saw including a saw blade, a separating tool formed as a saw blade movable about a tilting axis extending parallel to a cutting line of sight and fixable in each turning position relative to a workpiece which is subdivided by a cutting joint into a product-side and a refuse-side with product and refuse-side cutting edges, a base plate over which the saw blade is positioned. The saw blade is arranged so that the tilting axis extends at a distance under a lower side of the base plate, and the distance is dimensioned so that the tilting axis in a working position of the power tool is located under an upper surface of the workpiece in an interior of the workpiece.

Abstract: A device for transmitting a rotary and/or percussive movement to a tool is formed in such a way that the associated tools having three grooves arranged in rotationally symmetrical fashion can likewise be clamped in drill chucks having three chuck jaws. In addition, the tool is to have the limited axial mobility required when hammer drilling or chiselling. For this purpose, the device is equipped with three rotary driving elements arranged in a location hole and projecting inwards. The rotary driving elements are arranged in rotationally symmetrical fashion, are of equal width and have flanks which extend approximately parallel to one another. One of the rotary driving elements is longer in the radial direction than the other two in order to guarantee positionally correct insertion of the tool and satisfactory locking of a locking body in a closed groove of the tool. The rotary driving elements are fixed immovably in the location hole.

Abstract: A hand held power tool, particularly a hammer drill has a housing, a drive shaft, a rotatable tool holder, a safety coupling provided between the drive shaft and the tool holder, and a switching member supported with a bearing axis extending substantially parallel to the drive shaft and freely movable about the bearing axis in a plane extending substantially perpendicularly to the drive shaft. The switching member during a rearward rotation of the housing about an axis of the tool holder engages in the safety coupling and releasing the safety coupling.