Frankl & Kirchner Gmbh & Co Kg

Frankl & Kirchner Gmbh Co Kg Fabrik Fur Elektromotoren U. Elektrische

Frankl & Kirchner Gmbh & Co. Kg Fabrik Fur Electromotoren U. Electrische

Fabrik Fur Electromotoren U. Elektrische Apparate

Walter Ripplinger

Hans Erndt

A flange motor for a sewing machine comprises a motor casing with a drive shaft journal projecting over the latter. A casing flange, on which an adapter flange is mounted, is allocated to the drive shaft journal.

Flange motor for sewing machines

A rotor for an electric motor, energized by a permanent magnet, has an essentially cylindrical rotor body (1), with shaft sections (7, 8) coaxially distant from the rotor body (1). Permanent magnets (21) are fastened to the outer periphery (16) of the rotor body (1). In order to counterbalance the rotor, balance weight rings (6), in which weights (26) are inserted and which are disposed on seat sections (5) formed on the rotor body (1), are mounted on the rotor body (1).

Rotor having balance weights

A rotor for an electric motor energized by permanent magnet means comprises positioning devices for permanent magnets. These positioning devices consist of positioning rings disposed in the region of each end face of a rotor body and at least one inner positioning ring disposed on the rotor body between the two. The positioning rings comprise positioning webs which extend only over a small part of the length of the outer peripheral surface of the rotor body and which partially define compartments for in each case a permanent magnet. On the one hand, this ensures accurate and simple mounting of the permanent magnet while at the same time it reduces the moment of inertia of the rotor.

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Rheinhausen, Germany

Walter Ripplinger