Title:
【発明の名称】電気ねじアクチュエータシステム
Document Type and Number:
Japanese Patent JP2003530269
Kind Code:
A
Abstract:
An electric screw actuator system, e.g. for an electrically driven and controlled steering device, comprises a screw actuator, an electric motor ( 2 ) engaging the screw actuator through a reduction gear mechanism ( 3 ), electronic operating means for operating the screw actuator electrically, and a mechanical back-up system for operating the screw actuator in the absence of electric power e.g. in the case of an electric power failure of in the case the electric power is switched off, maintenance, garage parking etc. The mechanical back-up system comprises a manually controllable operation member ( 4 ) and an electromagnetic coupling ( 6 ), said coupling disengaging the rotation member from the screw actuator in the case of nominal operation and availability of electric power, and engaging the rotation member with the screw actuator in the case of electric power failure.
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Inventors:
Kappang, Hendricks, Yang
Holweg, Edialdas, Geraldas, Maria
Nervo, Aurelio
Holweg, Edialdas, Geraldas, Maria
Nervo, Aurelio
Application Number:
JP2001574772A
Publication Date:
October 14, 2003
Filing Date:
April 11, 2001
Export Citation:
Assignee:
SKF Engineering and Research Center BV
International Classes:
B62D1/16; B62D5/00; B62D5/04; F16H1/28; F16H25/20; B62D1/12; (IPC1-7): B62D5/04; B62D1/12; F16H1/28; F16H25/20
Attorney, Agent or Firm:
Fujioka Tohru