公开(公告)号：US11946306B2

公开(公告)日：2024-04-02

申请号：US17441981

申请日：2020-03-27

Applicant: Assa Abloy Entrance Systems AB

Inventor： Yong Chen ,  Jingfeng Zhang

IPC: E05F15/622 ,  E05F15/63

CPC classification number: E05F15/622 ,  E05F15/63 ,  E05Y2201/434 ,  E05Y2201/626 ,  E05Y2201/70 ,  E05Y2201/702 ,  E05Y2201/722 ,  E05Y2900/132

Abstract: An automatic door operator includes a lead screw having a first end connected to an output end of an actuating unit and a second end extending away from the output end. A lead screw nut is attached to the lead screw. A slider is attached to the lead screw nut. The slider is 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, a length of an overlap of the rack portion and the lead screw in the axial direction varies. The operator includes a housing having a guide hole configured to be slidably engaged with the slider and an output shaft is mounted in a mounting hole disposed on the housing. The output shaft has a gear portion positioned in the guide hole and engaged with the rack portion.

公开(公告)号：US11939808B2

公开(公告)日：2024-03-26

申请号：US17442376

申请日：2020-03-27

Applicant: Assa Abloy Entrance Systems AB

Inventor： Yong Chen ,  Jingfeng Zhang

IPC: E05F15/00 ,  E05F15/63

CPC classification number: E05F15/63 ,  E05Y2201/434 ,  E05Y2201/624 ,  E05Y2201/628 ,  E05Y2201/70 ,  E05Y2201/702 ,  E05Y2201/72 ,  E05Y2900/132

Abstract: An automatic door operator and a drive mechanism thereof are disclosed. The drive mechanism of the automatic door includes a planetary reducer driven by an electric motor, and a drive shaft driven by a planetary reducer. The planetary reducer includes a housing and a planetary gear train mounted in the housing. The planetary gear train includes a final-stage planet carrier configured to output torque, and a center of the final-stage planet carrier is provided with a torque output hole. A first end of the drive shaft is detachably inserted in the torque output hole and is non-rotatably connected to the torque output hole, and a second end of the drive shaft extends out of the housing. The drive mechanism of the automatic door operator is advantageous to the miniaturization design of the automatic door operator.