Patent ID: 7721851

Claim:
Bottom guiding device for telescoping elevator car and/or landing doors with at least one fast-moving door and one slow-moving door moving parallel to and within a small distance from a threshold plate of a car and/or landing door respectively, the bottom guiding device comprising: a threshold plate on a car and/or landing side, formed with at least one lower edge parallel to a travel path of the doors and forming a bottom first guide track for the doors; a bottom plate integral with the slower door and extending with a clearance below the faster door, provided on a threshold side with a second guide track parallel to the travel path of the doors and accommodating a guide element integral with the faster door; a guide element integral with said bottom plate on the slower door and accommodated on said first guide track on the threshold plate so as to slide freely; and a guide element integral with the faster door and accommodated on said first guide track on the threshold plate, arranged substantially at a front end of the faster door.