Sodeco-Saia Ag

Hermann Gerber

Hans Plotscher

Michel Schmutz

A rotational restriction lock is formed as a one-piece restricting element which is resiliently mounted on a rotor shaft and has a hub which is always resiliently driven in rotation by the rotor throughout a small angle, spring arms which transmit the rotary movement, and movable rotation restricting elements to which the rotary movement is transmitted and the ends of which prevent the rotor from rotation in an undesired direction, but allow the rotation of the rotor in a desired direction. Adjustable abutments are provided for selecting a permissible angle of rotation of the hub.

Rotational restriction lock for the rotor of a synchronous motor

A rotor for a synchronous motor includes a permanent ring magnet which has an inner surface, and a hub which has an outer surface. The hub is provided with a rotor shaft. Each surface is formed with a plurality of teeth. The teeth formed on one surface are shaped so as to be able to engage the teeth formed on the other surface. The engaged teeth form a force-locking connection between the ring magnet and the hub, when the hub is pressed into the ring magnet.

Permanent magnet rotor with gaps between the magnet and the hub

A miniature electric motor having substantially identical stator halves which are connected together by lugs axially interengaging on the circumference of the stator. The lugs of the stator halves resiliently engage in pairs on a common plane between ribs formed on a plastics material ring which is located inside the stator halves and which also forms an outer protective casing for the coils and the rotor parts of the motor. The lugs may be slotted at their free ends to provide resilient shanks.

Miniature synchronous electric motor

A miniature synchronous motor having a bell-shaped rotor and a damping body, freely mounted, but non-rotatable on the rotor shaft. The damping body being urged, at least substantially in a radial direction by a spring, the force of which also acts substantially equally for both bearings of the motor so as to reduce noise during operation.

Growing community of inventors

Munchenwiler, Switzerland

Hermann Gerber