Door panel assembly for elevator doors

Abstract

A door panel assembly (1) for an elevator door includes: a door panel (10); and an insulation assembly (20) associated with the door panel (10), the insulation assembly (20) including: - an insulation plate (2) having a plurality of sides and defining two opposing main surfaces (2a, 2b); - a metal plate layer (3) applied to one of the main surfaces (2a, 2b); and - a frame assembly (4) including a C-profile element (41) for each side of the insulation plate (2), each C-profile element (41) unfolding along its respective side and arranged to cover the side.

Description

Technical Field

[0001] This invention relates to a door panel assembly for elevator doors. In particular, the invention can be applied to fireproof partition doors for elevators. Background Technology

[0002] It is known to combine insulation panels with door panels to enhance the fire resistance of elevator doors. However, known solutions cannot guarantee fire resistance for a sufficiently long period of time.

[0003] One known solution envisions using aluminum foil applied to the insulation board. The main drawback of this solution is that the aluminum foil melts rapidly and is no longer able to prevent the escape of flammable gases.

[0004] There is a need for a fireproof partition door for elevators that can ensure fire resistance for 30 to 120 minutes or longer.

[0005] Against this backdrop, the basic technical task of the present invention is to provide a door panel assembly for elevator doors that overcomes the shortcomings of the prior art. Summary of the Invention

[0006] In particular, the object of the present invention is to provide a door panel assembly for elevator doors that has enhanced fire-resistant barrier performance compared with the prior art.

[0007] The technical task and specified purpose described in this invention are basically achieved by a door panel assembly for elevator doors, the door panel assembly comprising:

[0008] Door panel;

[0009] Thermal insulation components, associated with the door panel, include:

[0010] - Insulation panel, having multiple sides and defining two opposing main surfaces;

[0011] - Metal sheet layer, applied to the insulation panel, the metal sheet layer corresponding to one of the main surfaces;

[0012] - A frame assembly comprising a C-profile element for each side of the insulation panel, each C-profile element being arranged to cover the corresponding side of the insulation panel.

[0013] According to one embodiment, the metal sheet extends such that it is contained within a corresponding C-profile element near each side of the insulation panel.

[0014] According to the first embodiment, a metal plate layer is applied to one of the main surfaces.

[0015] According to one embodiment, the metal plate layer has folded edges that define walls that define an interior space in which the insulation panel is partially housed.

[0016] According to the second embodiment, the thermal insulation component includes an aluminum adhesive tape applied to a main surface such that the aluminum adhesive tape is located between the main surface and the metal plate layer.

[0017] Preferably, the aluminum adhesive tape covers at least a majority of the main surface. More preferably, the aluminum adhesive tape covers the entire main surface.

[0018] According to a preferred embodiment, the heat insulation component is arranged at a certain distance from the door panel so that it does not directly contact the door panel.

[0019] According to a preferred embodiment, the main surface faces the door panel. Attached Figure Description

[0020] Additional features and advantages of the invention will become more apparent from the non-limiting description of preferred, but not exclusive, embodiments of the door panel assembly for an elevator door described in the accompanying drawings, wherein:

[0021] - Figure 1 A front view of a door panel assembly for an elevator door according to the present invention is shown;

[0022] - Figure 2 It shows Figure 1 A cross-sectional view of the door panel assembly along line AA, which is marked therein;

[0023] - Figure 3 It shows Figure 1 Front view of a portion of the door panel assembly (insulation assembly);

[0024] - Figure 4 Shown in exploded 3D diagram Figure 3 A first embodiment of a thermal insulation component;

[0025] - Figure 5 It shows Figure 4 Enlarged view of the side portion of the thermal insulation component;

[0026] - Figure 6 It shows according to Figure 4 A cross-sectional view of the side portion of the thermal insulation component in an embodiment;

[0027] - Figure 7 Shown in exploded 3D diagram Figure 3 A second embodiment of the thermal insulation component;

[0028] - Figure 8 It shows Figure 7 Enlarged view of the side portion of the thermal insulation component;

[0029] - Figure 9 It shows according to Figure 7A cross-sectional view of the side portion of the thermal insulation component in an embodiment;

[0030] - Figure 10 It shows Figure 1 The front view of a portion of the door panel assembly (panel assembly). Detailed Implementation

[0031] Referring to the accompanying drawings, reference numeral 1 indicates a door panel assembly for an elevator door. Specifically, this invention belongs to the field of fire-resistant elevator partition doors, whose fire resistance rating is designated as "EI".

[0032] Therefore, it will become clearer from the following description that the door panel assembly 1 described herein is a fireproof partition door panel assembly.

[0033] The door panel assembly 1 includes a door panel 10 and a thermal insulation assembly 20 associated with the door panel 10.

[0034] The thermal insulation component 20 includes a thermal insulation panel 2.

[0035] Preferably, the heat insulation plate 2 is made into a single piece.

[0036] Preferably, the insulation panel 2 has a substantially flat unfolded surface defined by a first direction and a second direction orthogonal to each other. In use, the first direction can be identified as the “height” of the panel, and the second direction is identified as the “width”. The insulation panel 2 also unfolds along a third direction orthogonal to the plane defined by the other two directions. The dimension of the panel along the third direction is significantly smaller than the dimensions along the other two directions (e.g., 30 mm vs 1000 / 2000 mm).

[0037] The heat insulation panel 2 has multiple sides. In particular, the heat insulation panel 2 has four sides, which are opposite to each other and parallel.

[0038] Preferably, the heat insulation plate 2 has a rectangular shape, so that two opposite sides are longer than the other two sides. Therefore, they can be identified as the long side and the short side, respectively.

[0039] The heat insulation plate 2 defines two opposing main surfaces 2a and 2b.

[0040] Specifically, the main surfaces 2a and 2b are surfaces that unfold parallel to the planar unfolding surface of the heat insulation plate 2.

[0041] Referring to the usage state of door panel assembly 1, these surfaces are labeled as the "front" surface and the "rear" surface. In practice, when the door panel assembly is used in an elevator, the front surface of the insulation panel 2 will face outward (relative to the elevator shaft), and the rear surface will face inward (relative to the elevator shaft).

[0042] The thermal insulation component 20 includes a metal plate layer 3 applied to the thermal insulation panel 2, the metal plate layer 3 corresponding to one of 2a and 2b in the main surface.

[0043] Specifically, metal plate layer 3 is applied corresponding to the main surfaces 2a and 2b, which face the door panel 10. In the embodiment shown in the accompanying drawings, particularly... Figure 2 In the middle, the main surface 2b is the surface facing the door panel 10.

[0044] According to the first embodiment, the metal plate layer 3 is applied to one of 2a and 2b on the main surface.

[0045] Preferably, the metal plate layer 3 covers most of the main surfaces 2a and 2b.

[0046] Preferably, the metal plate layer 3 covers the entire main surfaces 2a and 2b.

[0047] According to one embodiment, the metal plate layer 3 contacts the heat insulation plate 2 only at the main surfaces 2a and 2b.

[0048] According to an alternative embodiment, the metal plate layer 3 has a folded edge 3a that defines a wall defining the interior space. The insulation panel 2 is at least partially housed within the interior space.

[0049] In this embodiment, the metal plate layer 3 covers the side of the heat insulation board 2.

[0050] Preferably, the folded edge 3a protrudes from the metal plate layer 3 in a direction substantially orthogonal to the metal plate layer 3. In particular, the metal plate layer 3 with the folded edge is similar to a baking pan.

[0051] The insulation assembly 20 includes a frame assembly 4, which includes C-profile elements 41 for each side of the insulation panel 2.

[0052] The C-profile element 41 is arranged to cover the side. In other words, the C-profile element 41 covers the side. Specifically, the side of the heat insulation plate 2 is accommodated inside the C-profile element 41.

[0053] Preferably, the C-profile element 41 extends along the corresponding side of the heat insulation plate 2.

[0054] The combination of panel 2, layer 3, and frame assembly 4 defines a so-called "sandwich structure," which prevents the escape of gases generated during a fire, gases that typically tend to ignite flames. Therefore, this enhances the fire-resistant isolation performance of door panel assembly 1. Thanks to this construction, a fire-resistant door panel assembly 1 can be achieved.

[0055] Specifically, the C-shaped element 41 covering the side is used to block flames.

[0056] Specifically, the C-profile element 41 includes a central member having two opposing sides. A first member and a second member extend from one of the two opposing sides. The first member and the second member extend away from the central member in a parallel direction orthogonal to the central member.

[0057] Preferably, the C-profile element 41 is galvanized.

[0058] Preferably, the metal plate layer 3 extends such that it is contained within the corresponding C-profile element 41 near each side of the insulation plate 2.

[0059] In an embodiment of the metal plate layer 3 with a folded edge 3a, the folded edge 3a is located between the side of the insulation plate 2 and the C-profile element 41. Specifically, the folded edge 3a abuts against the central member of the C-profile element 41.

[0060] According to the second embodiment, the heat insulation component 20 includes an aluminum adhesive tape 5 applied to the main surfaces 2a and 2b of the heat insulation plate 2, such that the aluminum adhesive tape 5 is located between the main surfaces 2a and 2b and the metal plate layer 3.

[0061] According to a preferred embodiment, the aluminum adhesive tape 5 covers the entirety of the main surfaces 2a and 2b.

[0062] By using aluminum adhesive tape 5 to combine with metal plate layer 3, a door panel assembly 1 that can withstand fire for up to 2 hours or longer can be achieved.

[0063] According to a preferred embodiment, the heat insulation component 20 is arranged at a certain distance from the door panel 10. In other words, the heat insulation component 20 does not directly contact the door panel 10.

[0064] For example, the thermal insulation component 20 faces the door panel 10 and is 5 to 15 mm away from the door panel 10.

[0065] Preferably, the door panel assembly 1 includes door panel end caps 30 at two opposite sides of the door panel 10 (the upper and lower sides of the door panel 10 in use). End caps are components known in the art and will not be described further.

[0066] Preferably, the door panel assembly 1 includes one or more reinforcements for the door panel end cap 30. Reinforcements are components well-known in the art and will not be described further.

[0067] Preferably, the door panel assembly 1 includes at least one retainer 50 for the thermal insulation assembly 20. Preferably, there are at least three retainers 50, and they are arranged on three sides of the door panel 10 (the top, the bottom, and one of the sides, particularly the side facing outwards).

[0068] According to the illustrated embodiment, the door panel 10, end cap 30, reinforcement and lateral retainer 50 define a welded subassembly.

[0069] Preferably, the door panel 10 is provided with a lateral sliding amount. The sliding amount is a component known in the art and will not be described further.

[0070] Elevator doors are also a subject of this invention.

[0071] The elevator door includes at least one door panel assembly 1 as described above.

[0072] Preferably, the elevator door includes at least a right door panel assembly 1 and a left door panel assembly 1.

[0073] The characteristics and advantages of the door panel assembly for elevator doors according to the present invention become clear from the above description.

[0074] In particular, the combination of the insulation panel, the metal sheet layer arranged on one of the two main surfaces, and the frame assembly of the C-shaped elements covering them defines a door panel assembly with enhanced fire-resistant partition performance compared to existing technology solutions.

[0075] The use of aluminum adhesive tape enhances fire resistance.

[0076] Therefore, it can provide fire protection for up to 120 minutes or longer.

[0077] Furthermore, embodiments with folded edges on the metal plate layer facilitate installation in terms of ease of operation and speed.

Claims

1. A door panel assembly (1) for an elevator door, the door panel assembly (1) comprising: Door panel (10); A thermal insulation component (20), associated with the door panel (10), the thermal insulation component (20) comprising: - Insulation panel (2), having multiple sides and defining two opposing main surfaces (2a, 2b); - A metal plate layer (3) is applied to the heat insulation plate (2), the metal plate layer (3) corresponding to one of the main surfaces (2a, 2b); - Frame assembly (4) includes a C-profile element (41) for each side of the insulation panel (2), each C-profile element (41) being arranged to cover the corresponding side of the insulation panel (2).

2. The door panel assembly (1) according to claim 1, wherein the metal plate layer (3) extends such that the metal plate layer (3) is contained within a corresponding C-profile element (41) near each side of the heat insulation plate (2).

3. The door panel assembly (1) according to claim 1 or 2, wherein the metal plate layer (3) has a folded edge (3a) that defines a wall defining an interior space, and the heat insulation panel (2) is partially accommodated in the interior space.

4. The door panel assembly (1) according to any one of the preceding claims, wherein the metal plate layer (3) is applied to one of the main surfaces (2a, 2b).

5. The door panel assembly (1) according to any one of claims 1 to 3, wherein the heat insulation assembly (20) comprises an aluminum adhesive tape (5) applied to one of the main surfaces (2a, 2b) such that the aluminum adhesive tape (5) is located between the one of the main surfaces (2a, 2b) and the metal plate layer (3).

6. The door panel assembly (1) according to claim 5, wherein the aluminum adhesive tape (5) covers at least a majority of one of the main surfaces (2a, 2b).

7. The door panel assembly (1) according to claim 5 or 6, wherein the aluminum adhesive tape (5) covers the entirety of one of the main surfaces (2a, 2b).

8. The door panel assembly (1) according to any one of the preceding claims, wherein the heat insulation component (20) is arranged at a certain distance from the door panel (10) such that the heat insulation component (20) does not directly contact the door panel (10).

9. The door panel assembly (1) according to any one of the preceding claims, wherein one of the main surfaces (2a, 2b) faces the door panel (10).

10. An elevator door comprising at least one door panel assembly (1) according to any one of the preceding claims.

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