CA2554615A1

CA2554615A1 - Elevator door cabin

Info

Publication number: CA2554615A1
Application number: CA002554615A
Authority: CA
Inventors: Marco Hoerler
Original assignee: Inventio Ag; Marco Hoerler
Current assignee: Inventio AG
Priority date: 2004-01-21
Filing date: 2005-01-21
Publication date: 2005-08-04
Anticipated expiration: 2025-01-21
Also published as: JP5042635B2; AU2005206237A1; EP1706348A2; WO2005070808A3; NO20063732L; MXPA06008177A; CA2554615C; JP2007518644A; AU2005206237B2; SG163444A1; NZ548592A; BRPI0506973A; WO2005070808A2

Abstract

The present invention concerns an elevator cabin door folding around a vertical axis during its closing movement and is based on the concept of making the door subject to a continuous tension exercised by a energy accumulator (preferably a spring) in order to keep the door opened, while, on the other door side, a traction action in opposite direction is exercised by means of two traction means (6, 7) that always pull the door and that wind around a second motorised vertical axis (8). The cabin door can then be mechanically coupled with a landing entrance door (11) so that the cabin door opening provokes the landing entrance door opening by means of dragging. The necessary torque on the different vertical axes of the construction are preferably exercised by cylindrical or helicoidal coil spring acting directly on the axes. The invention advantage mainly consists in the construction simplicity coupled with the reduced overall dimension and with the possibility of forming pre-assembled cabin doors and landing entrance doors and thus ready to be installed on the spot.

Claims

19

1. Elevator cabin door folding around a vertical axis (4) during its opening or closing movement, characterised in that - the vertical axis (4) around which the door folds is subject to a sufficiently high torque in order to keep the door opened, the torque being exercised by a first energy accumulator (5) overcoming an opposite force that tends to close it, - the door comprises upper traction means (6) and a lower traction means (7), wound around a second vertical axis (8) on which a second energy accumulator (10) acts, which tends to pull the traction means in order to close the door, - a motor (18) acts on the axis (8), whereby the second energy accumulator (10) exerts preferably a stronger force than the first energy accumulator (5).

2. Elevator cabin door according to claim 1, characterised in that the energy accumulators (5, 10) that exercise on the vertical axis (4, 8) the torque are formed by cylindrical or helicoidal coil springs.

3. Elevator cabin door according to claim 2, characterised in that the spring is incorporated into the hollow vertical axis.

4. Elevator cabin door according to one of the preceding claims, characterised in that the driving motor (18) is placed within the axis (8), preferably having an internal stator and an external rotor.

5. Elevator cabin door folding around a vertical axis according to one of the preceding claims, characterised in that - the cabin door is coupled, in the elevator halt points, with the landing entrance door according to the legal provision on safety being in force in the field, - the landing entrance door (11) is also a door folding or winding around a vertical axis (12) during its closing or opening movement, - the landing entrance door (11) is mechanically dragged by the cabin door during its opening, - the landing entrance door (11) exhibits the vertical axis (12) around which it folds on the same side in which the cabin door has the vertical axis (4) around which it folds.

6. Elevator cabin door folding around a vertical axis according to claim 5, characterised in that - the landing entrance door (11) is constantly subject to a tractive force that tends to close it and that must be overcome by the tractive force exercised on it in opposite direction and by dragging by means of the cabin door during its opening movement, - and/or the force to which the landing entrance door (11) is constantly subject to is exercised by means of an upper traction means (15) and a lower traction means (16), where then the traction means (15, 16) wind around a second vertical axis (17) of the landing entrance door (11), on which a torque is exercised by means of a energy accumulator.

7. Elevator cabin door according to one of the preceding claims, characterised in that the door folding around the vertical axis (4) during its opening or closing movement includes a fireproofing continuous surface made of fire-resistant material and/or the door is guided along the upper part and the lower part by means of horizontal guides (2, 3) that determine its shifting trajectory at least along the door span and/or the door is sufficiently rigid around any horizontal axis in order to satisfy the legal provisions on the maximal deformability for permissible bending if stressed in its centre, in the closed state, with a required horizontal force and is sufficiently folding around any vertical axis in order to be able to be folded up with a bending radius r lower than 10 d, d being the thickness of the door.

Elevator cabin door according to claim 7, characterised in that the continuous surface is made of a single foil (39) of fire-resistant material reinforced at least on one of the sides by means of vertical bars (310) arranged at mutual distances from each other and solidly fixed to the foil (39) along all their length.

9. Elevator cabin door according to claim 7 or 8, characterised in that the continuous surface is made of a single foil (39', 39"), exhibiting vertical ribs (311) at regular mutual distances, obtained by means of press forming of the foil in a die or by means of local deformation of the foil.
l0. Elevator with a cabin door according to any of the claims 1 to 9.