公开(公告)号：US3764875A

公开(公告)日：1973-10-09

申请号：US3764875D

申请日：1972-02-28

Applicant: OVERHEAD DOOR CORP

Inventor： HARRIS D

IPC: E05D15/24 ,  E05F15/00 ,  E05F15/10 ,  E05F15/16 ,  H02P1/44

CPC classification number: E05F15/41 ,  E05F15/684 ,  E05Y2201/646 ,  E05Y2400/57 ,  E05Y2800/00 ,  E05Y2800/748 ,  E05Y2900/106

Abstract: A door operator for opening and closing an upwardly acting door and including a power unit having reversible motor means for driving the operator. The motor means is associated with a control circuit which includes upper and lower limit switches actuated when the door is in the opened and closed positions, respectively, which limit switches are connected in parallel and control the reversing of the motor rotation. The circuit also includes a reversing switch for reversing the motor rotation and door movement automatically if the door engages an obstacle during movement in the closing direction. Control means are associated with the reversing switch for deactivating same when the door is positioned closely adjacent but slightly spaced from its fully closed position to prevent undesired reversing of the door. The control means also includes means for deactivating the reversing switch when the door is positioned closely adjacent but slightly spaced from its fully opened position.

Abstract translation: 用于打开和关闭向上作用的门并包括具有用于驱动操作者的可逆电机装置的动力单元的门操作器。 电动机装置与控制电路相关联，该控制电路包括分别在门处于打开和关闭位置时启动的上限和下限开关，这些限位开关并联连接并控制电机转动的反转。 该电路还包括一个反转开关，用于在关闭方向移动期间门接合障碍物时自动地反转电动机的旋转和门的移动。 当门被定位成与其完全关闭位置紧密相邻但是稍微间隔开时，控制装置与反转开关相关联以使其失效，以防止门的不期望的反转。 控制装置还包括用于当门定位成紧密相邻但与其完全打开位置稍微间隔时，使倒车开关停用的装置。