DEVICE FOR CONNECTING LIFT WELL DOOR WITH LIFT CABIN DOOR FOR SIMULTANEOUS MOVEMENT (DESIGN VERSIONS) Russian patent published in 1998 - IPC

FIELD: civil engineering. SUBSTANCE: device for connecting lift cabin door with well door has two webs, each end of each web being hinge connected to link coupling the web with other web. Links are secured on lift cabin door for rotation between two webs to form parallelogram with webs. Webs, arranged vertically between four rollers rotating on horizontal shaft secured in upper part of well door, form, together with rollers, a connection featuring rigidity to rotary movement of doors. Electromagnetic drive can provide displacement of one web upwards to parallelogram and disconnect the doors. With electromagnetic drive energized, parallelogram, acted upon by spring, gets unfolded, and webs are wedged between rollers, thus connecting the doors. EFFECT: enlarged operating capabilities. 11 cl, 6 dwg