Abstract: Carrier system for a backpack energy source, energy source and backpack energy source assembly The invention in particular is directed to a carrier system for a backpack energy source (2). The carrier system comprises a carrier plate (4) with a coupling interface (25) implemented to be exchangeably coupled to a counter coupling interface (31) of an energy source (2).

Abstract: A self-powered chainsaw, typically a battery powered chainsaw, including a housing, a power source, an endless cutting chain having a plurality of cutting elements and a motor arranged to drive the chain relative to the housing using power from the power source. The chainsaw also includes a sharpening element which is arranged so as to be driven relative to the cutting elements and the housing using the power source.

Abstract: Carrier system for a backpack energy source, energy source and backpack energy source assembly The invention in particular is directed to a carrier system for a backpack energy source (2). The carrier system comprises a carrier plate (4) with a coupling interface (25) implemented to be exchangeably coupled to a counter coupling interface (31) of an energy source (2).

Abstract: The invention relates to a motor-driven cutting device with a double blade arrangement driven by means of a double eccentric arrangement having opposing oscillating blade movement, comprising an advantageous construction with a separate double eccentric group for the drive device that can form a uniformly operable front-part group, particularly in conjunction with the double blade arrangement at a particularly favorable cost, and that is advantageous for installing the front-part group in the production process and/or when replacing the preferably uniformly operable front-part group.

Abstract: A self-powered chainsaw, typically a battery powered chainsaw, comprising a housing (1; 21), a power source (5; 25), a endless cutting chain (4; 24) having a plurality of cutting elements and a motor (6) arranged to drive the chain (4; 24) relative to the housing (1; 21) using power from the power source (5; 25), in which the chainsaw further comprises a sharpening element (12; 32) which is arranged so as to be driven relative to the cutting elements and the housing (1; 21) using the power source (5; 25).

Abstract: A typically battery-operated power tool, such as a chainsaw or hedge trimmer, comprising a working element (4), a motor (6) arranged to drive the working element (4) and a controller (9) arranged to control the speed at which the motor drives the working element (4), in which there is provided a sensor (12) for at least one factor indicative of the efficiency with which the power tool is being operated, the controller (9) being arranged to vary the speed at which the motor (6) drives the working element (4) should the factor indicate that the power tool is being operated in a sub-optimal manner. Typically, the factor is the pressure which the user is applying the power tool, and the sensor (12) is a sensor for the current flowing through the motor (6).

Abstract: The invention relates to a motor-driven cutting device with a double blade arrangement driven by means of a double eccentric arrangement having opposing oscillating blade movement, comprising an advantageous construction with a separate double eccentric group for the drive device that can form a uniformly operable front-part group, particularly in conjunction with the double blade arrangement at a particularly favourable cost, and that is advantageous for installing the front-part group in the production process and/or when replacing the preferably uniformly operable front-part group.