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    Reversible screw-and-nut actuating device and sliding door equipped with such a device
    53.
    发明授权
    Reversible screw-and-nut actuating device and sliding door equipped with such a device 失效
    可逆螺钉和螺母动作装置和装有这样的装置的滑动门

    公开(公告)号：US5077938A

    公开(公告)日：1992-01-07

    申请号：US679244

    申请日：1991-04-02

    Applicant: Marc Moreuil

    Inventor： Marc Moreuil

    IPC: B61D19/00 ,  E05C21/00 ,  E05F15/14

    CPC classification number: E05F15/635 ,  E05F15/652 ,  E05Y2201/22 ,  E05Y2201/244 ,  E05Y2201/434 ,  E05Y2201/64 ,  E05Y2201/70 ,  E05Y2800/112 ,  E05Y2800/116 ,  E05Y2800/25 ,  E05Y2800/252 ,  E05Y2900/51 ,  Y10T74/18656 ,  Y10T74/19781

    Abstract: A reversible-screw- (3) and-nut (14) actuating device is connected by a coupling (12, 13) to a sliding door, the screw (3) itself being connected to a motor. A carriage (11) which can move along the screw comprises a lock (16, 22, 28, 24) for locking this carriage automatically when the nut (14) reaches one end of its travel and for unlocking it automatically when the screw is moved in the opposite direction.The lock (16, 22, 28, 24) can move with respect to the nut and is stressed toward a locking position by a helical spring (29) working in the direction of its winding. A manual unlocking means comprises a plate (37) which can move about an axis (40) so as to align the locking finger (22) and its roller (28) with a slide channel (23) counter to the spring (29), this unlocking being possible even when the screw forces in the direction of closing for safety reasons, the unlocking then being validated only when the screw is released.Application to a door of a public transport vehicle.See FIG. 3.

    Abstract translation: 螺旋（3）螺母（14）致动装置通过联接器（12,13）连接到滑动门，螺钉（3）本身连接到电动机。 可以沿着螺钉移动的托架（11）包括用于当螺母（14）到达其行程的一端时自动锁定托架的锁（16,22,28,24），并且当螺钉移动时自动解锁 在相反的方向。 锁定件（16,22,28,24）可以相对于螺母移动，并且通过在其卷绕方向上工作的螺旋弹簧（29）而向锁定位置施加压力。 一种手动解锁装置包括可围绕轴线（40）移动以便使锁定指（22）和其辊（28）与弹簧（29）相对的滑动通道（23）对准的板（37） 即使当螺钉因为安全原因而在关闭方向上的力量时，这种解锁也是可能的，因此仅当螺钉被释放时才解锁。 申请到公共交通工具车门。 参见图。 3。

    Automatic door operator
    57.
    发明授权
    Automatic door operator 有权

    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.

    Automatic door operator and drive mechanism thereof
    58.
    发明授权
    Automatic door operator and drive mechanism thereof 有权

    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.

    TRUCK BED SYSTEM WITH RAISABLE PLATFORM
    60.
    发明公开
    TRUCK BED SYSTEM WITH RAISABLE PLATFORM 审中-公开

    公开(公告)号：US20230399061A1

    公开(公告)日：2023-12-14

    申请号：US18207173

    申请日：2023-06-08

    Applicant: Donald R. Palumbo ,  Randy Luckette

    Inventor： Donald R. Palumbo ,  Randy Luckette

    IPC: B62D33/08 ,  B60J7/057 ,  B60J7/04 ,  E05F15/603

    CPC classification number: B62D33/08 ,  B60J7/0576 ,  B60J7/042 ,  E05F15/603 ,  E05Y2201/448 ,  E05Y2201/694 ,  E05Y2201/70 ,  E05Y2201/702 ,  E05Y2800/10 ,  E05Y2900/53

    Abstract: The present invention provides a truck bed system with a plurality of powered actuators which can raise a raisable platform above the truck bed floor to create a second platform in addition to the truck bed floor surface. The additional or second truck bed platform allows the truck user to use the upper platform for carrying tools and other goods or materials, with the space between the truck bed floor and platform for storing or moving large flat items like lumber and plywood or drywall sheets without displacing or disturbing the contents stowed on the upper platform. The present invention also allows the upper platform to be used for stowing large items like lumber and plywood or drywall sheets, with the space between the truck bed floor and upper platform for carrying tools and other goods or materials. The present invention allows the space between the truck bed floor and the upper platform, when in a raised position, to be used as secure storage when the tailgate is locked. The plurality of actuators can be attached to the truck bed floor, the truck bed walls or integrated into the space within the truck bed side walls.

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