发明名称 Return and tensioning device for the chain drive of a garage door drive
摘要 <p>The garage door is opened and closed by an electric motor driving a chain which runs through a guide rail the position of which may be adjusted axially. The unit also incorporates a pressure spring which operates axially between the movable rail and end-stop, tensioning the chain-roller and chain.</p>
申请公布号 EP0936337(B1) 申请公布日期 2003.05.28
申请号 EP19990101260 申请日期 1999.01.23
申请人 SOMFY FEINMECHANIK UND ELEKTROTECHNIK GMBH 发明人 KAISER, NORBERT;BUEHNER, PETER;SIEGWART, BERNHARD;GRABANDT, PETER
分类号 E05F15/16;(IPC1-7):E05F15/16 主分类号 E05F15/16
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