发明名称 Drive Unit For Raising And/Or Lowering A Roller Shutter
摘要 A drive unit ( 10 ) for a roller shutter assembly is disclosed. The drive unit ( 10 ) includes at least two electrical motors ( 14 ) and a reduction gear train ( 12 ). Each electric motor ( 14 ) includes an output shaft that is mechanically coupled to an axle engaging means ( 20 ) via the reduction gear train ( 12 ). The electric motors ( 14 ) are operable to generate mechanical power generated by the combination of the electric motors ( 14 ) is coupled to the axle engaging means ( 20 ) via the reduction gear train ( 12 ) to wind a roller shutter of the roller shutter assembly onto or off an axle.
申请公布号 US2008163989(A1) 申请公布日期 2008.07.10
申请号 US20050592392 申请日期 2005.03.11
申请人 发明人 SALES MICHAEL PAL;CORBOY STEPHEN NOEL
分类号 E05F15/16;E05F15/10;E06B9/70 主分类号 E05F15/16
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