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1. 发明申请

WO2020201110A1 AUTOMATIC DOOR OPERATOR 审中-公开
公开(公告)号：WO2020201110A1
公开(公告)日：2020-10-08
申请号：PCT/EP2020/058758
申请日：2020-03-27
申请人： ASSA ABLOY ENTRANCE SYSTEMS AB
发明人： CHEN, Yong , ZHANG, Jingfeng
IPC分类号： E05F3/10 , E05F15/622 , E05F15/63
摘要： An automatic door operator is disclosed, including: an actuating unit configured to output torque; a lead screw having a first end connected to an output end of the actuating unit and a second end extending away from the output end; a lead screw nut screwed to the lead screw; a slider attached to the lead screw nut, the slider being provided with a rack portion extending in a direction parallel to an axial direction of the lead screw, and during a movement of the lead screw nut from a first extreme working position away from the first end of the lead screw to a second extreme working position close to the second end of the lead screw, a length of an overlap between the rack portion and the lead screw in the axial direction gradually increasing; a housing having a guide hole configured to be slidably engaged with the slider; and an output shaft mounted in a mounting hole disposed on the housing, the output shaft having a gear portion positioned in the guide hole and engaged with the rack portion. The automatic door operator is high in transmission efficiency, small in size and low in running noise.

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