公开(公告)号：US3912049A

公开(公告)日：1975-10-14

申请号：US41020173

申请日：1973-10-26

Applicant: DOVER CORP

Inventor： HOLLAND GORDON A ,  ADAMS GILBERT T

IPC: B66B13/12 ,  B66B13/18 ,  B66B13/16

CPC classification number: B66B13/18 ,  B66B13/12

Abstract: An interlock for center opening elevator hoistway doors, in which one door is powered and the other door is operated by a cable from the powered door, has an interlock switch operated by the powered door to prevent the elevator car from leaving the landing before the hoistway doors are closed. When the idle door is open, a tab connected to a spring loaded pivoted lever swings into a position underlying the interlock to prevent the interlock hook from dropping into position to close the interlock switch. When the idle door closes, a cam mounted on the idle door engages a cam follower on the lever and rotates the lever tab clear of the interlock hook, simultaneously swinging a latch connected to the lever into a catch mounted on the cam so that the idle door is securely locked in closed position once the interlock hook drops into position to lock the powered door.

Abstract translation: 用于中心打开电梯井道门的互锁，其中一个门被供电，另一个门由来自动力门的电缆操作，具有由动力门操作的联锁开关，以防止电梯轿厢在井道之前离开着陆 门关闭。 当怠速门打开时，连接到弹簧加载的转动杆的突片摆动到联锁的下方的位置，以防止互锁钩落入到合适位置以关闭互锁开关。 当怠速门关闭时，安装在怠速门上的凸轮与杠杆上的凸轮随动件接合，并且将杠杆突出部旋转离开互锁钩，同时使连接到杠杆的闩锁摆动到安装在凸轮上的卡扣中，使得空转 一旦互锁钩落入到位以锁定电动门，门被牢固地锁定在关闭位置。

公开(公告)号：US3371747A

公开(公告)日：1968-03-05

申请号：US37460864

申请日：1964-06-12

Applicant: DOVER CORP

Inventor： GINGRICH JOHN A ,  HOLLAND GORDON A

IPC: B66B1/20

CPC classification number: B66B1/20