专利名称:Actuating mechanism for sliding doors发明人:LENZKES; DIETER,SEILER; KARL-HEINZ申请号:US41395673申请日:19731108公开号:US3891907A公开日:19750624
摘要:An actuating mechanism for a sliding door driven by a linear motor comprising aslidable bar coupled to the door, for moving the door into closed and open positions,and a dual stator having the stacks thereof disposed on each side of the bar. A three-phase ac and a dc field winding are disposed in the stator for generating a traveling fieldfor moving the sliding bar and a braking field for reducing the velocity of the movementthereof, respectively. The improvement comprises the provision of a first sequentialswitching means, responsive to movement of the slidable bar, for selectively energizingthe dc field winding and generating the braking field as the door is moved from one of itspositions to the other by the traveling field. A second sequential switching means, whichis responsive to movement of the bar, deenergizes both the ac and dc field windings, andterminates the traveling and braking fields, when the door is moved into its closed andopen positions by the bar.
申请人:SIEMENS AKTIENGESELLSCHAFT
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