MOTOR OPERATING UNIT FOR ELECTRIC APPARATUS

PURPOSE:To facilitate control by enhancing stop accuracy when the moving speed fluctuates and also when the operating voltage of drive motor fluctuates considerably. CONSTITUTION:Drive force is transmitted from a motor 39 through a worm wheel reduction gear 13 and a planetary reduction gear 14 to an...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: KII MASAMI
Format: Patent
Sprache:eng
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:PURPOSE:To facilitate control by enhancing stop accuracy when the moving speed fluctuates and also when the operating voltage of drive motor fluctuates considerably. CONSTITUTION:Drive force is transmitted from a motor 39 through a worm wheel reduction gear 13 and a planetary reduction gear 14 to an output shaft 20 mounting a fixed ring 21. First and second brake shoes 22, 23, operating alternately, are mounted on the differential shaft of the planetary reduction gear 14, i.e., a large sun gear 19, and the fixed ring 21, respectively, so that the first brake shoe 22 restricts or release the large sun gear 19, respectively, upon motion or stoppage of an electric apparatus.