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Machine translation
1. (WO1980002203) STEPPING POLYPHASED MOTOR FOR A CLOCKWORK MECHANISM
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/002203    International Application No.:    PCT/CH1980/000044
Publication Date: 16.10.1980 International Filing Date: 09.04.1980
IPC:
G04C 13/11 (2006.01), H02K 21/24 (2006.01), H02K 37/12 (2006.01)
Applicants:
Inventors:
Priority Data:
3507/79 12.04.1979 CH
Title (EN) STEPPING POLYPHASED MOTOR FOR A CLOCKWORK MECHANISM
(FR) MOTEUR PAS A PAS POLYPHASE POUR MOUVEMENT D"HORLOGERIE
Abstract: front page image
(EN)A polyphased stepping motor for the direct driving of the second or minute pin in a clockwork. The motor comprises a disc shaped rotor (1) axially magnetised so as to have 2N alternating poles and at least two stator members (2, 3) each made by a magnetic circuit with gap and command coil (6, 7). The magnetic circuit is formed by one or two U-shaped members coupled with the said coil. The arrangement is such that the number of steps per command current period be 60m/N. The invention also applies to motors for quartz clocks.
(FR)L"invention concerne un moteur pas a pas polyphase pour l"entrainement direct de l"axe des secondes ou des minutes d"un mouvement d"horlogerie. Le moteur comporte un rotor (1) en forme de disque aimante axialement de facon a presenter 2N poles alternants et au moins deux elements de stator (2, 3) formes chacun par un circuit magnetique avec entrefer et une bobine (6, 7) de commande. Le circuit magnetique est constitue d"une ou de deux pieces en forme de U couplees a ladite bobine. L"agencement est tel que le nombre de pas par periode du courant de commande soit de 60 m/N. L"invention s"applique notamment a des moteurs pour horloges a quartz.
Designated States:
Publication Language: German (DE)
Filing Language: German (DE)