公开(公告)号：US4228873A

公开(公告)日：1980-10-21

申请号：US956848

申请日：1978-11-02

Applicant: George L. Nyborg, Jr.

Inventor： George L. Nyborg, Jr.

IPC: E05B65/00 ,  B66B13/00

CPC classification number: B66B13/16 ,  Y10T70/5155 ,  Y10T70/5199 ,  Y10T70/5204 ,  Y10T70/7661 ,  Y10T70/7983 ,  Y10T70/8946

Abstract: An elevator shaft door safety mechanism which permits the shaft door to be opened by authorized persons when the elevator is not in place. The mechanism is particularly suitable for use with doors of the hingedly mounted type. The mechanism is lock controlled and permits manual operation of the latching mechanism with the use of a special tool.

Abstract translation: 电梯井门安全机构，当电梯不在适当位置时，允许授权人员打开轴门。 该机构特别适用于铰接式门的门。 该机构是锁定控制的，并允许使用专用工具手动操作闩锁机构。