ARMORED, PRE-TENSIVE FIRE GATE

Description

TECHNICAL FIELD

[0001] The present invention relates to a fire-resistant armored door. The invention will find particular application in integrating fire-resistant and armored functions into an existing door. The invention is especially applicable to the renovation market. STATE OF THE ART

[0002] The principle of a fire door is to limit the risk of fire spreading from one apartment to other apartments, particularly to the hallways of common areas. Therefore, the aim is to limit the diffusion of heat towards the core of the door. However, armored doors have a metallic coating that conducts heat particularly well to the core of the door.

[0003] Furthermore, a solution applicable to existing doors, generally made of wood, is being sought for the purpose of saving money, but also as part of an ecological and aesthetic approach whose objective is to use existing materials as much as possible.

[0004] Therefore, there is a need to offer a fireproof armored door that resolves all or part of these drawbacks.

[0005] US5603194A discloses an armored fire door. SUMMARY

[0006] To achieve this objective, according to one embodiment, an armored fire door is provided comprising a frame and at least one leaf, the leaf comprising a base panel, for example made of wood, comprising an external face intended to form an exterior face of the fire door and an internal face opposite the external face, the internal face and the external face being connected to each other by an edge, at least part of the internal face and at least part of the edge being covered, preferably entirely, by a metallic armoring cladding having a first face facing the base panel and a second face opposite the first face,characterized in that the opening comprises a fire-resistant magnesium silicate panel bonded with non-combustible adhesive between the inner face of the base panel and the first face of the metal armor cladding, and in that at least a portion of the edge of the opening comprises a non-combustible wool seal arranged between the base panel and the first face of the metal armor cladding.

[0007] This configuration ensures that the wooden base panel is protected to delay temperature rise and combustion, despite the presence of the metal shielding. Indeed, the synergy between the fire-resistant panel, bonded with non-combustible adhesive which both reduces temperature and prevents combustion, and the non-combustible wool seal which provides a thermal barrier in sensitive and less accessible areas, such as the edges of the openings, allows for a renovated, easily installed, and highly effective fire-resistant door. The door according to the invention therefore meets the requirements to be designated a fire-resistant door, or even an E1 fire-resistant door, and advantageously offers a flame resistance of 30 minutes, corresponding to an E30 classification.

[0008] Advantageously, the synergy of the wool and the insulating panel ensures optimal protection of at least three sides of the door.

[0009] In one scenario, the fire door comprises two opening parts.

[0010] In another aspect, the invention relates to a method for renovating a door, preferably an existing one, to close off an area and form a reinforced fire door as described above (the area could, for example, be an apartment or a house). .

[0011] The process includes the following steps: Supply of an existing door having a base panel, for example made of wood, comprising an external face intended to form an outer face of the armored fire door and an inner face opposite to the outer face, Application of a magnesium silicate fire-resistant panel to the inner face of the base panel by means of a non-combustible adhesive, Positioning of a non-combustible wool seal on at least part of the edge of the base panel, Positioning of a metallic armoring coating on at least part of the inner face of the base panel and on at least part of the edge.

[0012] This process makes it possible to improve the existing door with armoring and fire-resistant functions while keeping the external face in contact with the outside of the area, therefore visible from the outside with the original aesthetics. BRIEF DESCRIPTION OF THE FIGURES

[0013] The aims, objects, features and advantages of the invention will become clearer from the detailed description of an embodiment thereof, which is illustrated by the following accompanying drawings in which: There figure 1 represents an exploded view from the inside face of a single-leaf armored fire door according to the invention. figure 2 represents a view from the inside face of a single-leaf armored fire door according to the invention; The figure 3 represents a view according to section AA of the figure 2 . There figure 4 represents a view according to section BB of the figure 2 . There figure 5 represents a view of detail C of section BB illustrated in figure 4 . There figure 6 represents a view of detail D of section BB illustrated in figure 4 . There figure 7 represents a view of detail E of section AA illustrated in figure 3 . There figure 8represents a view of detail F of section AA illustrated in figure 3 . There figure 9 represents an exploded view from the inside face of a double-leaf armored fire door according to the invention. Figure 10 represents a view from the inside face of a double-leaf armored fire door according to the invention. figure 11 represents a view according to section AA of the Figure 10 . There figure 12 represents a view according to section BB of the Figure 10 . There figure 13 represents a view of detail C of section BB illustrated in figure 12 . There figure 14 represents a view of detail D of section BB illustrated in figure 12 . There figure 15 represents a view of detail E of section AA illustrated in figure 11 . There figure 16 represents a view of detail F of section AA illustrated in figure 11 .

[0014] The drawings are given by way of example and are not limiting of the invention. They constitute schematic representations of principle intended to facilitate understanding of the invention and are not necessarily to scale with practical applications. DETAILED DESCRIPTION

[0015] Before proceeding with a detailed review of embodiments of the invention, optional features that may be used in combination or alternatively are listed below: As an example, the armored fire door 1 includes an intumescent seal 4 arranged between a sash 300,400 and the frame 200; As an example, the intumescent seal 4 is configured so that under the action of heat, typically heat of at least 700°C, the intumescent seal 4 expands to come into contact with the metal armoring coating 500 covering the edge 304,404 of the sash 300,400;As an example, the frame 200 comprises - a wooden frame 201 having an outer face 202 and an inner face 203 opposed to each other by a slice 204, - a metal frame shielding 5000 having a first face 5001 and a second face 5002 opposed, the first face 5001 being arranged on at least a part of the inner face 203 of the frame 201 and on at least a part of the slice 204 of the frame 201, and - a non-combustible wool seal 3 arranged between the slice 204 of the frame 201 and the metal frame shielding 5000; As an example, the frame 201 is formed by two vertical uprights 205 connected at their upper end by a cross member 206, the intumescent joint 4 extending over at least 80% and preferably over the entire length LH of the section 204 of a vertical upright 205, the length LH being measured along the vertical;For example, the intumescent seal 4 extending over at least 80% and preferably over the entire length LH of section 204 of the two vertical uprights 205, the length LH being measured vertically; For example, the intumescent seal 4 extending over at least 60%, preferably 70%, preferably 80% and preferably over the entire length LV of section 204 of the cross member 206, the length LV being measured horizontally. For example, the frame 201 is formed by two vertical uprights 205 connected at their upper ends by a cross member 206, the non-combustible wool seal 3 extending over at least 80% and preferably over the entire length LH of section 204 of a vertical upright 205, the length LH being measured vertically;For example, the non-combustible wool joint 3 extending over at least 80% and preferably over the entire length LH of the section 204 of the two vertical uprights 205, the length LH being measured along the vertical; For example, the non-combustible wool joint 3 extending over at least 80% and preferably over the entire length LV of the section 204 of the cross member 206, the length LV being measured along the horizontal;For example, the edge 304,404 of the base panel 300,401 comprises an inner edge 304a, 404a, an outer edge 304b, 404b, a lower edge 304d, 404d intended to face a floor, and an upper edge 304c, 404c opposite the lower edge 304d, 404d, an inner edge 304a, 404a intended to be on the side of a fixing of the sash 300,400 to the frame 200 and an outer edge 304b, 404b opposite the inner edge 304a, 404a, the non-combustible wool joint 3 extending over at least 80% and preferably over the entire length LH of the inner edge 304a, 404a of the base panel 301,401 the length LH being measured along the vertical; For example, the non-combustible wool joint 3 extending over at least 80% and preferably over the entire length LH of the outer edge 304b, 404b of the base panel 301,401, the length LH being measured along the vertical;For example, the non-combustible wool seal 3 extending over at least 80% and preferably over the entire length LH of the inner edge 304a, 404a of the base panel 301, 401, the length LH being measured vertically; For example, the door 1 comprises a frame 200, a sash 300, a secondary sash 400 and an intumescent seal 4 arranged between the sash 300 and the secondary sash 400; For example, the intumescent seal 3 is arranged on the frame 200; For example, the metal armor cladding 500 covers at least 90% of the inner face 303, 404 of the base panel 301, 401; For example, the metallic armor cladding 500 covers at least 50%, preferably 70% of the edge 304,404 of the base panel 301,401; For example, the magnesium silicate fire-resistant panel 2 covers at least 80% of the inner face 303,404 of the base panel 301,401;As an example, the non-combustible adhesive covers at least 80% of the magnesium silicate fire-resistant panel 2.

[0016] For the remainder of this description, 'top' and 'bottom', or their derivatives, refer to the relative positioning of an element of the armored door when it is functionally installed, with 'top' oriented away from the ground and 'bottom' oriented towards the ground. The upper end is at the top and the lower end is at the bottom.

[0017] Vertical refers to anything parallel to the direction of gravity, as indicated by a plumb line, and horizontal refers to anything perpendicular to the vertical. Up and down are vertically opposite.

[0018] Horizontal refers to anything perpendicular to the vertical.

[0019] Transverse refers to a direction perpendicular to a longitudinal direction. A transverse section is a section perpendicular to the longitudinal axis.

[0020] A parameter "approximately equal to / greater than / less than" or "of the order of" a given value means that this parameter is equal to / greater than / less than the given value, to within 10% or even 5% of that value.

[0021] For the purposes of this disclosure, "A and / or B" means (A), (B), or (A and B). For the purposes of this disclosure, "A, B, and / or C" means (A), (B), (C), (A and B), (A and C), (B and C), or (A, B, and C).

[0022] In the following description, the terms "on" or "in contact" do not necessarily mean "directly on" or "directly in contact." Thus, when it is stated that a part or component A1 is supported "on" a part or component B1, this does not mean that parts or components A1 and B1 are necessarily in direct contact with each other. These parts or components A1 and B1 may be either in direct contact or supported by one or more other parts.

[0023] The terms "first", "second" and "third", etc. are used simply as labels, and are not intended to impose numerical requirements on their objects.

[0024] An element "based" on a material A is understood to be an element comprising only that material A or that material A and possibly other materials.

[0025] The term "fire-resistant" refers to the resistance of a door or gate component to fire. In the present invention, the term "fire-resistant" includes the term "flame-retardant." A flame-retardant is defined as preventing the passage of flames and smoke for a specified time under standardized test conditions. A fire-resistant component is defined as, in addition to preventing the passage of flames and smoke, preventing the passage of heat for a specified time under standardized test conditions.

[0026] The term "non-combustible" means that it does not ignite or is difficult to ignite in fires that may occur under accidental building fire conditions. Typically, a non-combustible material within the scope of the present invention does not ignite for a predetermined time, for example, at least 30 minutes, when subjected to a temperature of 300°C, preferably 600°C, preferably 800°C, and more preferably 860°C. The present invention relates to a door 1 having both fire-resistant and / or flame-retardant and armored properties.

[0027] The door 1 according to the invention comprises a frame 200 and at least one leaf 300, 400. A leaf 300, 400 is a movable part of the door, also called a sash. A frame 200 corresponds to the jamb, that is to say, a fixed part of a door 1 that is integral with the masonry.

[0028] The door 1 comprises at least one leaf 300 and, depending on one possibility, two leaves 300 and 400. Each leaf 300, 400 is fixed to the frame 200, advantageously by hinges 5. At least one leaf 300, 400 includes a handle 6 which can be associated with a lock allowing the closing and opening of the leaf 300, 400 to be operated.

[0029] Preferably, door 1 is intended to delimit an interior area corresponding for example to an apartment, or the interior of a house, a warehouse, from an exterior area corresponding for example to a corridor of common areas or the exterior of a house.

[0030] The door 1 has a lower face 101 and an outer face 102. The inner face 101 is the face of the door leaf 300, 400 intended to be arranged on the inner side of the door 1, that is, facing the interior area. Conversely, the outer face 102 is the face of the door leaf 300, 400 intended to be arranged on the outer side of the door 1, that is, facing the exterior area.

[0031] Each opening 300, 400 comprises a base panel 301, 401, advantageously made of wood. Wood means solid wood, plywood, particleboard, or a mixture or assembly thereof.

[0032] According to one advantage of the invention, the basic panel 301, 401 is an existing opening which we wish to optimize to give it fire-resistant and shielding functions.

[0033] The base panel 301, 401 has an external face 302, 402 and an internal face 303,403 opposite the external face 302,402.

[0034] The internal face 303, 403 refers to the face of the base panel 301, 401 intended to be arranged on the inside of the door 1, i.e., facing the interior area. Conversely, the external face 302, 402 refers to the face of the base panel 300, 401 intended to be arranged on the outside of the door 1, i.e., facing the exterior area.

[0035] According to a preferred embodiment of the invention, the aesthetic appearance of the base panel 301, 401 is to be preserved in the exterior area. The outer face 302, 402 of the base panel 301, 401 is therefore intended to form the outer face 101 of the door and to be oriented with respect to the exterior area. It may be possible to have an additional covering on this outer face 302, 402 depending on technical and / or aesthetic requirements.

[0036] The outer face 302, 402 and the inner face 303, 403 are connected to each other, advantageously around their perimeter, by an edge 304, 404. The edge 304,404 corresponds to the less wide faces of the door 1.

[0037] The 304,404 section is defined as comprising four sections: an inner section 304a, 404a, an outer section 304b, 404b, an upper section 304c, 404c, and a lower section 304d, 404d. The lower section 304d, 404d is intended to be at ground level, particularly at a door threshold; the upper section 304c, 404c is opposite the lower section 304d, 404d and therefore at ground level. The inner edge 304a, 404a is understood as the edge of the opening 300,400 on the side of its attachment to the frame 200, that is to say in particular on the side of the hinges 5. The outer edge 304b, 404b is opposite to the inner edge 304a, 404a and is understood as the edge of the opening 300,400 on the side of the handle 6 or the lock.

[0038] Advantageously, the basic panel 301, 401 has a substantially parallelepiped shape with possibly rounded edges on some sides.

[0039] The frame 200 comprises a stile 201, advantageously made of wood. Most commonly, the stile 201 consists of two vertical stiles 205, preferably spaced apart and advantageously joined at their upper ends by a horizontally arranged crossbar 206. The stile 201 may include a sill, not shown in the figures, connecting the lower ends of the two vertical stiles 205. The stile 200 comprises an inner face 202, an inner face 203, and an edge 204. The edge 204 is intended to face the sash 300, 400, while the inner face 203 is intended to be oriented with respect to the interior area. The inner face 202 is intended to face the outer face 102 of the door 1, that is, advantageously, the outer face 303, 403 of the base panel 301, 401. The inner face 202 acts as a stop for the opening 300, 400.The inner face 202 and the inner face 203 extend along parallel planes and are connected to each other by the slice 204 which extends transversely between the two parallel planes.

[0040] According to the invention, the opening 300, 400 comprises a metallic shielding cladding 500. The metallic cladding 500 has a first face 501 opposed to a second face 502. The metallic shielding cladding 500 is intended to cover at least a portion of the inner face 303, 403 of the base panel 301, 401 of the opening 300, 400 and advantageously at least a portion of the field 304, 404 of the base panel 301, 401 of the opening 300, 400. Advantageously, the metallic shielding cladding 500 covers at least 90%, preferably 100%, of the inner face 303, 403 of the base panel 301, 401. Advantageously, the metallic shielding cladding 500 covers at least 90%, preferably 100%, of the field 304, 404 of the base panel 301,401. Preferably, the metallic shielding 500 covers at least part of the inner edge 304a, 404a, the outer edge 304b, 404b.According to one illustrated possibility, the metal shielding cladding 500 does not cover the upper edge 304c, 404c, and the lower edge 304d, 404d. According to the invention, the frame 200 comprises a metal shielding cladding 5000. The metal shielding cladding 5000 has a first face 5001 opposite a second face 5002. The metal shielding cladding 5000 is intended to cover at least a portion of the frame 201 of the frame 200. Advantageously, the metal shielding cladding 5000 covers at least the edge 204 of the frame 201 and preferably at least a portion of the inner face 203 and more preferably at least a portion of the inner face 202 of the frame 201.

[0041] Advantageously, the metal shielding cladding of the frame 5000 covers at least 90%, preferably 100% of the inner face 203 of the frame 201. Preferably, the metal shielding cladding of the frame 5000 covers at least part of the inner face 203 of each vertical mullion 205 and of the cross member 206.

[0042] Advantageously, the metal shielding cladding of the frame 5000 covers at least 90%, preferably 100% of the section 204 of the frame 201. Preferably, the metal shielding cladding of the frame 5000 covers at least part of the section 204 of each vertical mullion 205 and the section 204 of the cross member 206.

[0043] Advantageously, the metal shielding cladding of the frame 5000 covers at least 90%, preferably 100% of the inner face 202 of the frame 201. Preferably, the metal shielding cladding of the frame 5000 covers at least part of the inner face 202 of each vertical mullion 205 and of the cross member 206.

[0044] The metal shielding cladding 500 and the metal frame shielding cladding 5000 are advantageously identical, but may differ, particularly in terms of material or thickness. For example, the metal shielding cladding 500 and the metal frame shielding cladding 5000 comprise, for instance, a metal plate selected from steel or stainless steel and with a thickness between 1 mm and 3 mm. According to the invention, the door leaf 300, 400 of the door 1 comprises a fire-resistant panel 2, advantageously made of magnesium silicate. The fire-resistant panel 2 comprises a first face 21 and a second face 22 facing opposite each other. Advantageously, the fire-resistant panel 2 is arranged between the inner face 303, 403 of the base panel 301, 401 and the first face 501 of the metal shielding cladding 500.Preferably, the first face 21 of the fire-resistant panel 2 is arranged with respect to the base panel 301, 401 while the second face 22 of the fire-resistant panel 2 is arranged with respect to the first face 501 of the metal armoring cladding 500. The fire-resistant panel 2 notably limits the spread of fire thanks to the magnesium silicate which is a good fire insulator in that it becomes powdery without catching fire when heated.

[0045] According to one possibility, the fire-resistant panel 2 covers at least 90%, preferably 100% of the inner face 303, 404 of the base panel 301, 401.

[0046] In one embodiment, the fire-resistant panel 2 is bonded to the inner face 303, 403 of the base panel 301, 401 and / or to the first face 501 of the metal shielding 500 using a non-combustible adhesive designed to slow the spread of fire. For example, the non-combustible adhesive is silicate-based. The adhesive may be Pyrocol® from Odice. In the event of a fire, i.e., when heated above a critical temperature, the non-combustible adhesive changes state and releases vapor, which moistens the base panel 301, 401, particularly if it is made of wood, and locally lowers the temperature, thus limiting the spread of fire.

[0047] According to one possibility, the non-combustible adhesive covers at least 90%, preferably 100%, of the fire-resistant panel 2, preferably one face 21,22 of said fire-resistant panel 2. According to one possibility, the fire-resistant panel 2 comprises at least 150g of adhesive / m², preferably at least 200g / m², more preferably 250g / m².

[0048] According to a preferred embodiment of the invention, the door 1 includes a non-combustible wool seal 3. The non-combustible wool seal 3 is, for example, based on glass wool, rock wool, glass fiber, refractory ceramic fiber, or alkaline earth silicate such as, for example, known under the brand name SuperWool ®< .

[0049] The non-combustible wool gasket 3 acts as thermal insulation between the 500 or 5000 metal shielding and the 301 wooden base panel and / or the 200 wooden frame. The non-combustible wool gasket 3 prevents the heat from the fire, which is easily transmitted to the 500 or 5000 metal shielding, from being transferred to the base panel, particularly the wooden one.

[0050] The non-combustible wool seal 3 is advantageously arranged on at least part of the edge 304, 404 of the opening 300, 400. Preferably, the non-combustible wool seal 3 is arranged between the base panel 301, 401 and the first face 501 of the metal shielding cladding 500. Preferably, the non-combustible wool seal 3 covers at least part of the inner edge 304a, 404a and the outer edge 304b, 404b. In one option, the non-combustible wool seal 3 may be present on the upper edge 304c, 404c and / or the lower edge 304d, 404d of the base panel 301, 401.

[0051] In one option, the non-combustible wool seal 3 covers at least 80% of at least one of the inner edges 304a, 404a, outer edges 304b, 404b, upper edges 304c, 404c, and / or lower edges 304d, 404d where it is present. Preferably, the non-combustible wool seal 3 covers at least 80% of the width of said edge, preferably 100%. The width is defined as the transverse dimension to the length. The length is measured along a longitudinal dimension of the door 1 and more commonly along the vertical.

[0052] Preferably, the door 1 includes, in addition to the non-combustible wool seal 3 present on the edge 304, 404 of the opening 300,400, a non-combustible wool seal 3 present on the edge 204 of the frame 201 of the fixed 200.

[0053] In one scenario, the non-combustible wool seal 3 covers at least 70% of section 204. Preferably, the non-combustible wool seal 3 covers at least 80% of the width of said section 204, preferably 100%. Width is defined as the transverse dimension to the length. Length is measured along a longitudinal dimension of door 1 and more commonly along the vertical.

[0054] According to a preferred embodiment, the door 1 includes an intumescent seal 4. The intumescent seal 4 is configured to expand under the effect of heat so as to fill a gap in order to limit the spread of fire. Advantageously, an intumescent seal 104 is arranged between the sash 300, 400 and the frame 200 or between two sashes 300, 400 in the embodiment in which the door 1 includes two sashes 300, 400.

[0055] According to a preferred option, when the intumescent seal 4 is arranged between the frame 200 and an opening 300, 400, it is preferentially arranged on the frame 200. This arrangement ensures optimized durability and a desired aesthetic appearance. Advantageously, the intumescent seal 4 is arranged on the edge 204 of the frame 201 of the fixed part 200. The intumescent seal 4 is advantageously fixed to the metal shielding cladding of the fixed part 5000, specifically on its second face 5002, covering the edge 204. The intumescent seal 4 is advantageously arranged between the edge 204 of the frame 201 of the fixed part 200 and the edge 304, 404 of the sash 300, 400. More precisely, between the second face 5002 of the metal shielding cladding of the fixed part 5000 covering the edge 204 and the second face 502 of the metal shielding cladding 500 covering the edge 304, 404.

[0056] When the intumescent seal 4 is arranged between two openings 300, 400, it is preferentially arranged on the opening 400 which does not include the handle 6. The intumescent seal 4 is advantageously arranged on the opening 400 intended to be fixed or to be opened in second position after the opening 300.

[0057] According to another aspect, the invention relates to a method for renovating a door 1. The door is intended to ensure the closure of an area as described above.

[0058] The method according to the invention includes the supply of an existing door 1 comprising a base panel 301, 401 advantageously made of wood.

[0059] The base panel 301, 401 has an external face 302, 402 advantageously intended to form the external face 101 of the door 1 and an internal face 303, 403 opposite the external face 302, 402. The external face 302, 402 and the internal face 303, 403 are connected to each other, advantageously around their perimeter, by an edge 304, 404. The edge 304, 404 corresponds to the narrower faces of the door 1.

[0060] The internal face 303, 403 refers to the face of the base panel 301, 401 intended to be arranged on the inside of the door 1, i.e., facing the interior area. Conversely, the external face 302, 402 refers to the face of the base panel 301, 401 intended to be arranged on the outside of the door 1, i.e., facing the exterior area.

[0061] The invention advantageously comprises the application of a fire-resistant panel 2, advantageously made of magnesium silicate, to the inner face 303, 403 of the base panel 301, 401. Preferably, the method includes a step of applying non-combustible adhesive to the inner face 303, 403 of the base panel 301, 401 and / or to the fire-resistant panel 2, preferably on the first face 21 intended to be exposed to the base panel 301, 401. It may be envisaged that the fire-resistant panel 2 is also bonded with the non-combustible adhesive on its second face 22 intended to be exposed to the metal shielding cladding 500. Preferably, the method according to the invention comprises the positioning of a non-combustible wool gasket 3 on at least a portion of the edge 304, 404 of the base panel 301, 401.Advantageously, the method according to the invention includes positioning a metallic shielding coating 500 on at least a part of the inner face 303,403 of the base panel 301,401, more specifically on at least a part of the second face 22 of the fire-resistant panel 2 and at least a part of the edge 304,404 of the base panel 301,401. Preferably, this step of positioning the metal shielding cladding 500 is carried out after the application of the fire-resistant panel 2 and after the positioning of the non-combustible wool seal 3. In this configuration, the non-combustible wool seal 3 is arranged between the edge 304,404 of the base panel 301,401 and the metal shielding cladding 500. According to a preferred embodiment, the process also includes positioning a non-combustible wool seal 3 on at least a portion of the edge 204 of the frame 201 of the stile 200.

[0062] According to this embodiment, the process comprises, preferably after positioning the non-combustible wool seal 3 on the slice 204, positioning a metal frame shielding 5000 on at least a part of the slice 204 of the frame 201 and preferably on at least a part of the inner face 203 of the frame 201 and advantageously on at least a part of the inner face 202 of the frame 201. The non-combustible wool seal 3, possibly present at the level of the frame 200, is arranged between the slice 204 of the frame 201 and the metal shielding 5000.

[0063] According to a preferred possibility, the process includes the positioning of an intumescent seal 4 arranged between the frame 200 and the sash 300, 400 and possibly between the sash 300 and the sash 400 in the case of a door 1 comprising two sashes 300,400.

[0064] The method according to the invention makes it possible, in particular, to preserve the aesthetic appearance of the base panel 301, 401 in the exterior area. The external face 302, 402 of the base panel 301, 401 is therefore intended to form the exterior face 101 of the door and to be arranged with respect to the exterior area.

[0065] The invention is not limited to the embodiments previously described and extends to all embodiments covered by the invention as defined by the attached claims. List of references

[0066] 1. Door 101. Interior face 102. Exterior face 200. Frame 201. Frame 202. Interior face 203. Interior face 204. Edge 205. Vertical stile 206. Rail 300. Sash 301. Base panel 302. Exterior face 303. Interior face 304. Edge 304 a. Interior edge 304 b. Exterior edge 304 c. Top edge 304 d. Bottom edge 400. Secondary sash 401. Base panel 402. Exterior face 403. Interior face 404. Edge 404 a. Interior edge 404 b. Exterior edge 404 c. Top edge 404 d. Lower edge 500. Metal shielding cladding 501. First face 502. Second face 5000. Metal shielding cladding 5001. First face 5002. Second face 2. Magnesium silicate fire-resistant panel 21. First face 22. Second face 3. Non-combustible wool gasket 4. Intumescent gasket 5. Hinges 6. Handle

Claims

1. Armoured fire door (1) comprising a frame (200) and at least one door leaf (300,400), the door leaf (300,400) comprising a base panel (301,401) comprising an outer face (302,402) intended to form an external face (101) of the fire door (1) and an inner face (303,403) opposite the outer face (302,402), the inner face (303,403) and the outer face (302,402) being connected to each other by an edge (304,404), at least a part of the inner face (302,402) and at least a part of the edge (304,404) being covered, by a shielding metal lining (500) having a first face (501) arranged facing the base panel (301.401) and a second face (502) opposite the first face (501), characterised in that the door leaf (300, 400) comprises a fire-proof magnesium silicate panel (2) bonded by a non-combustible adhesive between the inner face (303,403) of the base panel (301,401) and the first face (501) of the shielding metal lining (500) and in that at least a part of the edge (304,404) of the door leaf (300,400) comprises a non-combustible wool seal (3) arranged between the base panel (301,401) and the first face (501) of the shielding metal lining (500).

2. Armoured fire door (1) according to the preceding claim comprising an intumescent seal (4) arranged between a door leaf (300, 400) and the frame (200), preferably the intumescent seal (4) is configured so that under the action of heat, typically a heat of at least 700 °C, the intumescent seal (4) expands to come into contact with the shielding metal lining (500) covering the edge (304, 404) of the door leaf (300, 400).

3. Armoured fire door (1) according to any one of the preceding claims, wherein the frame (200) comprises: - a frame structure (201) comprising an external face (202) and an interior face (203) separated by a side (204), - a frame shielding metal lining (5000) having a first face (5001) and a second face (5002) opposite one another, the first face (5001) being arranged on at least a part of the interior face (203) of the frame structure (201) and on at least a part of the side (204) of the frame structure (201), and - a non-combustible wool seal (3) arranged between the side (204) of the frame structure (201) and the frame shielding metal lining (5000).

4. Armoured fire door (1) according to the preceding claim in combination with Claim 2, wherein the frame structure (201) is formed by two vertical posts (205) connected at their upper end by a cross member (206), the intumescent seal (4) extending over at least 80% and preferably over the entire length LH of the side (204) of a vertical post (205), the length LH being measured vertically.

5. Armoured fire door (1) according to the preceding claim, wherein the intumescent seal (4) extends over at least 80% and preferably over the entire length LH of the side (204) of the two vertical posts (205), the length LH being measured vertically.

6. Armoured fire door (1) according to any one of the four preceding claims, wherein the intumescent seal (4) extends over at least 60%, preferably 70%, preferably 80% and preferably over the entire length LV of the side (204) of the cross member (206), the length LV being measured horizontally.

7. Armoured fire door (1) according to any one of Claims 2 to 6, wherein the frame structure (201) is formed by two vertical posts (205) connected at their upper end by a cross member (206), the non-combustible wool seal (3) extending over at least 80% and preferably over the entire length LH of the side (204) of a vertical post (205), the length LH being measured vertically, preferably the non-combustible wool seal (3) extends over at least 80% and preferably over the entire length LH of the side (204) of the two vertical posts (205), the length LH being measured vertically.

8. Armoured fire door (1) according to any one of the two preceding claims, wherein the non-combustible wool seal (3) extends over at least 80% and preferably over the entire length LV of the side (204) of the cross member (206), the length LV being measured horizontally.

9. Armoured fire door (1) according to any one of the preceding claims, wherein the edge (304,404) of the base panel (300,401) comprises an interior edge (304a, 404a), an outer edge (304b, 404b), a lower edge (304d, 404d) intended to be facing a floor, and an upper edge (304c, 404c) opposite the lower edge (304d, 404d), an interior edge (304a, 404a) intended to be on the side of an attachment of the door leaf (300, 400) to the frame 200 and an outer edge (304b, 404b) opposite the interior edge (304a, 404a), the non-combustible wool seal (3) extending over at least 80% and preferably over the entire length LH of the interior edge (304a, 404a) of the base panel (301, 401), the length LH being measured vertically.

10. Armoured fire door (1) according to the preceding claim, wherein the non-combustible wool seal (3) extends over at least 80% and preferably over the entire length LH of the outer edge (304b, 404b) of the base panel (301, 401), the length LH being measured vertically.

11. Armoured fire door (1) according to either of the two preceding claims, wherein the non-combustible wool seal (3) extends over at least 80% and preferably over the entire length LH of the interior edge (304a, 404a) of the base panel (301, 401), the length LH being measured vertically.

12. Armoured fire door (1) according to any one of the preceding claims, comprising a frame (200), a door leaf (300), a secondary door leaf (400) and an intumescent seal (4) arranged between the door leaf (300) and the secondary door leaf (400), preferably the intumescent seal (3) is arranged on the frame (200).

13. Armoured fire door (1) according to any one of the preceding claims, wherein the shielding metal lining (500) covers at least 90% of the inner face (303,404) of the base panel (301,401) and / or the shielding metal lining (500) covers at least 50%, preferably 70% of the edge (304,404) of the base panel (301,401).

14. Armoured fire door (1) according to any one of the preceding claims, wherein the magnesium silicate fire-proof panel (2) covers at least 80% of the inner face (303,404) of the base panel (301,401).

15. Method for refurbishing a door used to close off an area to form an armoured fire door (1) according to any one of the preceding claims, the method comprising the following steps: - Providing an existing door having a base panel (301,401) comprising an outer face (302,402) intended to form an external face (101) of the armoured fire door (1) and an inner face (303,403) opposite the outer face (302,402), - Applying a magnesium silicate fire-proof panel (2) on the inner face (303,43) of the base panel (301,401) using a non-combustible adhesive, - Positioning a non-combustible wool seal (3) on at least a part of the edge (304, 404) of the base panel (300,401), - Positioning a shielding metal lining (500) on at least a part of the inner face (303,403) of the base panel (301,401) and on at least a part of the edge (304,404).