Atlas Copco Industrial Technique Ab

Wojtek Malinowski

Ulf Mikael Eriksson

Torbjörn Rafael Sjöblom

Per Ingemar Forsberg

A power tool attachment part for a power tool includes an elongated housing including an upper housing part and a lower housing part interconnected with the upper housing part. An input gear wheel for connection to an output shaft of the power tool is arranged at a first end of the housing. An output gear wheel with an output connection is arranged at a second end of the housing. At least one intermediate gear wheel is arranged inside the housing to transmit rotation of the input gear wheel to the output gear wheel. A magnet is arranged in the elongated housing, wherein the magnet is arranged to collect ferromagnetic particles.

Power tool attachment part

An attachment part for a power tool includes an elongated housing including an upper housing part, a lower housing part and an interconnection structure that interconnects the upper and lower housing parts. An input gear for connection to an output shaft of a power tool is arranged at a first end of the housing. An output gear with an output interface is arranged at a second end of the housing. The interconnecting structure includes a sleeve member extending through a first central bore at the first end of the upper housing part, which sleeve member receives the input gear, and a fixation member extending through a second central bore at the first end of the lower housing part and which is arranged to be secured to the sleeve member to clamp the upper and lower housing parts. A tool assembly includes a power tool and the attachment part.

Attachment part for a power tool and a tool assembly

An impulse wrench includes a housing, an electric motor with a rotor, a hydraulic pulse unit with an inertia drive member and an output shaft, and a coupling rigidly connecting the rotor to the inertia drive member to form an integrated rotating structure. The coupling includes a male coupling portion on the inertia drive member and a female coupling portion on the rotor, such that the male coupling portion is received in the female coupling portion to form the coupling. The male and female coupling portions have external and internal threaded sections, respectively, where an axial clamping force is accomplished at relative rotation of the rotor and the inertia drive member. The male coupling portion and the female coupling portion are provided with mating conical surfaces which are brought together by the axial clamping force to form a rigid connection between the rotor and the inertia drive member.

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Danderyd, Sweden

Wojtek Malinowski