EP3401490A1 - Door reinforcement structure and door unit reinforced by such a structure - Google Patents

Abstract

The shielding structure according to the invention comprises an envelope sheet (10) and a bowl sheet (20). The casing plate 10 is configured by folding on itself to form a plate (11) which covers the door over its entire rear face and extends beyond, along two lateral uprights of the door, by wrapping around the periphery of the door. the door over the edge, before forming a fold (13) which, on the front face of the door, covers a front panel (3) on a limited width along the two uprights. The bowl plate (20) has an intermediate position in the thickness of the door, separating the front panel (3) from a filler plate (4) and forming a receiving bowl of this filler plate on the entire surface of the door at the back of the facade panel.

Description

The present invention relates to a door armor structure designed to suit in particular, although not exclusively, to renovation work consisting in shielding an existing door while retaining its front panel. It extends not only to the armored doors by means of such a structure, but also to its use in the production of door locks with security shielding. Its object is, in particular, a shielded door unit in which the shielding structure used to shield the actual door is completed by a frame frame, designed cooperating, wherein the door is applied in the closed position.

In the context of the applications of the invention for renovation work, the shielding structure according to the invention satisfies in particular the requirements that are encountered for landing doors in private apartment buildings when the owners or tenants wish to keep the aesthetics of their front door. The same need also arises, for example, for town houses that have an old character to preserve. Furthermore, it will be readily understood that the shielding structure proposed by the invention can also be used outside renovation work, on new door panels, in applications where there will be the advantage of knowing how to lend to customer choice in a custom manufacturing.

The prior art in this area is illustrated by the patent document WO 2015/158610 , which proposes to wrap the door in a metal structure made of different sheets fixed to each other by screwing. The patent document FR2676498 as for him is interested in a specific assembly in which two pieces fit by sliding on one another, and there also the assembly is realized by screws or bolts. In all cases, the proposed provisions do not meet the needs that the invention aims to achieve.

The invention proposes a door armor structure constituted as defined by claim 1, by two plates each configured by folding and fixed to each other by flat welding flat along the two amounts of the door, in a set incorporating filler plates behind a facade panel.

The invention combines a good quality of burglar protection while ensuring good fire protection and good thermal insulation. It also improves the quality of sound insulation that usually goes hand in hand with thermal insulation.

In the structure according to the invention, the shell sheet which surrounds the edge of the door along the two uprights in the extension on either side of the rear plate combines its effects with the bowl plate which interposes, in the thickness of the door, between the facade panel and a filler plate which is housed in the bowl plate and extends over the entire surface of the door at the rear of the facade panel. The central plate that forms the bottom of the bowl is a transverse plate that covers the entire interior of the door. It has the effect of doubling the rear face plate that includes the shell sheet, but at a distance from it, the filler plate being in between. The burglar-proof protection by attempting to pierce through the door is thus reinforced, better than if the two plates were against each other. On the other hand, the metal parts are not sensitive to vibrations, thanks to a welding between them which is carried out flat on flat over the entire height of the sheets, preferably by plug welding.

Furthermore, the edges of the bowl plate advantageously have a Z-shaped profile, forming a plate in external extension from the central plate, and by this plate overflowing the sheet is fixed in support within a cooperating flat. that the envelope sheet forms in continuation of an outer shoulder of its lateral face. In this way, the two plates, the rear face plate and the transverse plate of the bowl plate, are rigidly secured to one another away from the inner panels, facade panel and filler plate. The intermediate plate formed by the bowl plate is not secured to the front panel or the filler plate. This method of assembly contributes to the fact that the armored doors made by means of the shielding structure according to the invention demonstrate a level of security that could not previously be envisaged, insofar as the efforts that would be exerted inside the door are not transmitted directly from one to the other of the panels. But also, the protection is consolidated all around the door against the attempts of burglary by leverage, for example by means of a clip monseigneur, because on the back side the door closes in recovery of the rabbet of the frame.

In the preferred embodiments of the shielding structure according to the invention, it is advantageously provided that the door can contain several internal panels, by adding a second filler plate behind that located in the hollow of the bowl plate, so as to fill by it the internal space formed by the shielding structure in a rear portion in outer extension linked to the shouldered profile of the sheet metal envelope in its side face. The cross-sectional profile of the envelope sheet joins the rear faceplate by a U-shaped profile, which is an extension of the described Z-shaped profile of the fold formed over the facade panel to the outer extension flat surface to which is fixed the rim of the bowl plate.

In the embodiments of the invention which generally prove to be the most appropriate in industrial production, the profile of the envelope sheet surrounding the edge of the door can also be defined as forming an outward shoulder constituting said flat part. between a front part which folds inwards, in practice at a right angle, to form the fold enclosing the edge of the front panel, and a rear part of wider extent, which folds itself inwards in practice also at right angles, where the profile continues through the backplate.

This specific structure can be seen in an equivalent manner as leaving three housings inside the shell sheet, with a first housing for the facade panel between the front fold of the shell sheet and the transverse plate of the dish plate, a housing intermediate for a filler plate extending on an identical surface in the receiving cavity of the bowl plate, and a third housing for another filler plate which extends over a larger surface against the rear face plate.

Note also that this structure according to the invention can advantageously be configured and dimensioned so that in operation, when the armored door which is equipped comes against the complementary frame of the frame, the envelope sheet is placed as it is traditional in the rebate of dormant in its front part, but that at the same time, at the place of its rear part, it comes outside in recovery of the frame of dormant thus closing the interval of the rabbet. The invention thus provides a complement of security in all its components, the sheet having mainly anti-burglar effect, and the filler plate mainly in insulation.

The filler plates are made of various materials, chosen according to criteria known in themselves, generally plaster, wood, glass, combining in a composition adapted to the performance of firebreak or thermal or acoustic insulation sought.

• La figure 1 illustre un bloc-porte à blindage de sécurité suivant l'invention, dans une vue en perspective faisant apparaître l'ensemble des éléments essentiels de la structure de blindage utilisée, en montrant la structure de dormant séparée de la porte, celle-ci étant vue avec écorché partiel de l'empilement de plaques de remplissage dans la structure d'ouvrant;
• La figure 2 représente en perspective un montant de la structure de dormant, destinée à venir en habillage d'une huisserie existante, dans une variante de réalisation où elle est équipée d'un élément d'empênage rapporté à l'arrière d'un élément de feuillure, cet élément d'empênage étant là plus spécifiquement une gâche multi-empênages ;
• La figure 3 représente en perspective une partie de la porte blindée vue du côté du même montant que la figure 2, en illustrant les éléments métalliques comme les éléments non métalliques de la structure et en se plaçant dans une situation particulière d'application où la porte est équipée d'un bloc-serrure multi-pênes intégrant la serrurerie dans un boîtier qui est sur l'enveloppe de blindage et fixé à l'extérieur ;
• La figure 4 représente le profil de section droite des différentes éléments métalliques de la structure de blindage suivant l'invention dans un de ses modes de réalisation à serrure rapportée en face arrière de la porte ;
• La figure 5 représente en coupe l'ensemble des éléments de la figure 4 une fois qu'ils ont été complétés par les éléments non métalliques de la structure d'ouvrant et assemblés dans un bloc-porte complet ;
• La figure 6 est l'homologue de la figure 4 dans une autre variante de réalisation des éléments métalliques de la structure de blindage dans lequel la structure de blindage d'ouvrant enferme une coulisse pour serrure encastrée, et dans lequel par ailleurs la gâche est formée en suite de la feuillure dans la même tôle d'habillage du dormant ;
• La figure 7 est l'homologue de la figure 6 pour la structure de blindage complète d'un bloc-porte à serrure encastrée constitué à partir des éléments de la figure 6.

The invention will now be more completely described in particular embodiments, chosen to illustrate the preferred features of the invention in its renovation application for the production of swinging doors with metal shielding, opening by rotation around a vertical amount. This description is made with reference to the figures of the accompanying drawings, in which:

• The figure 1 illustrates a door block with a safety shield according to the invention, in a perspective view showing all the essential elements of the shielding structure used, showing the frame structure separated from the door, the latter being seen with partial skinning of the stack of filler plates in the sash structure;
• The figure 2 represents in perspective an amount of the frame structure, intended to clad in an existing frame, in an alternative embodiment where it is equipped with a prevention element attached to the rear of a rabbet element, this restraint element being there more specifically a multi-restraint waste;
• The figure 3 represents in perspective a part of the armored door seen from the side of the same amount as the figure 2 , illustrating the metallic elements as the non-metallic elements of the structure and placing in a particular application situation where the door is equipped with a multi-bolt lock block incorporating the locksmith in a housing that is on the shielding envelope and attached to the outside;
• The figure 4 represents the cross-sectional profile of the various metallic elements of the shielding structure according to the invention in one of its lock-mounted embodiments on the rear face of the door;
• The figure 5 represents in section all the elements of the figure 4 once they have been completed by the non-metallic elements of the sash structure and assembled in a complete door block;
• The figure 6 is the counterpart of the figure 4 in another alternative embodiment of the metallic elements of the shielding structure in which the opening shielding structure encloses a recess for a recessed lock, and in which otherwise the striker is formed as a result of the rabbet in the same sheet metal. dressing of the frame;
• The figure 7 is the counterpart of the figure 6 for the complete shielding structure of a door block with a built-in lock made from the elements of the figure 6 .

It is to be understood from the figures and the following description that the exemplary embodiments illustrated can be combined with each other in a manner different from that illustrated. Thus, in particular, the casing in which the set of locking mechanisms is integrated, which constitutes the lock 7, may be either externally attached to the casing plate 10 and fixed to it as illustrated in FIG. figure 5 , either recessed inside the shell sheet as shown on the figure 7 , in combination alternately with a strike reported as shown in figure 4 or with the waste of the figure 6 which is shaped in the frame structure and comes flush with the rear face plate of the shell sheet, namely the plate 11 of the shield structure which covers the door on its rear face.

For the sake of clarity, a vocabulary according to which, as already done above, designates as the front face of the door that which is occupied by the front panel, at the top in the sectional figures, and like the backside, the opposite side is entirely covered by the sheet metal. The side faces left and right of the figures are those along the door jambs and which are placed in the rabbet of the frame when the door is brought to the closed position.

Commonly in renovation of landing doors, the front of the door is located outside a private apartment and the rear face inside. It is therefore by the front face that occur in principle burglary attempts while other components of the desired security, particularly the firewall function, are more to be treated by the entire armored door. However, as they are designed and arranged in relation to the various shielding elements, the internal elements to the door also participate in the burglar-proof security.

In practice, the shielding structure is made in the factory by folding cut sheets to the dimensions fixed for its various constituent elements and by welding the elements to each other, edge to edge at the end of the profile, or on each other flat on flat at the level of perforations regularly distributed on the current part of the profile. In the case described, it has been planned to give the structural element coming from the door at a high cross-section the same sectional profile as for the elements constituting the uprights, with edge-to-edge welding of the elements of the high cross member over the corresponding elements of the faces of uprights.

Finally, the facade panel and the filler plates are slidably introduced from the bottom end of the door-specific shielding structure, before being closed by a sheet metal member used as a threshold cross member 19. End profiles are fixed at the end.

Referring more specifically to the appended figures, it is observed that a complete block-door shielding structure comprises an opening structure 1 and a frame structure 2. These two assemblies, made exclusively of metal sheets, are completed by non-metallic elements specific to the door, in which one distinguishes a front panel 3 and two internal filler plates 4 and 5. The front panel is framed by the opening armor assembly, which covers its edges, but it remains apparent in the front face in the majority of its surface. The filler plates are themselves enclosed in the metal shielding structure and not visible from the outside.

The metal elements of the opening shielding structure essentially comprise the cover sheet 10, the bowl sheet 20; the counter-plate opening 31 of the anti-clamp device. Once these elements assembled at the factory, the resulting shielding structure receives the elements specific to the door, namely the front panel 3, the entire central portion remains apparent, a first filler plate 4, in the intermediate position between the panel front and a second filler plate 5.

Envelope sheet, we see that it is configured to form a rear face plate 11 which is here in the form of a flat plate. This tray covers the door on its back side, opposite the front panel. It extends there over the entire surface of the door, from one to the other of the two section profiles and from the top rail to the threshold cross member.

From this plate, the casing sheet 10 bends at right angles, extending by return on itself to envelop the periphery of the door on the two opposite sides which define the pillar sections 16 and 17 (FIG. figure 1 ). It follows there a lateral profile forming a side face 12 on the edge of the door. This profile is followed on the front face of the door of a fold 13 which comes back over the front panel 3. In the particular case described, the same side profile is applied to an element forming the top cross member of the door ( referenced 18 on the figure 1 ). As for the crossing of threshold 19, it is simply constituted according to a profile of L-shaped cross section whose long branch closes the internal space of the door and whose short branch is applied over the front panel while on the rear side the threshold cross member is fixed on the rear plate.

We will detail now the constitution of the elements of upright and high cross member, arbitrarily treating the particular case of the amount which is located lock side in the finished door. On the opposite side, the cooperating sections falling respectively to the opening and the frame are simply supplemented by the components of a hinge in any way in itself conventional.

At the level of the upright section there are two parts of the shell sheet, with a rear portion 15 which extends from the front portion 14 by lateral extension towards the outside of the door. It is in this part of the larger surface of the door that the filling plate 5 is placed, extending into the corresponding front part of the side face of the envelope.

The bowl plate 20 forms a cavity 23, the bottom of which is plane over the entire extent available between the two post sections, so that a transverse reinforcement plate 21 is formed in an intermediate position inside the box. door. On the edges of this plate the dish plate has a Z-shaped lateral profile, ending in an outward edge which defines the transverse plate 22 by which it is applied on the internal face of the shell sheet, where the Z-profile of the shell sheet forms a cooperating flat 24, on the inner face of a shoulder 25 unhooked from the front to the rear part of the door. Cuvette plate and casing plate are securely fastened to each other at this level by flat-to-flat welding over the entire height of the sheet along each door post according to the plug welding technique. In a variant, the same flat-plate welding connection is made at the level of the rabbet itself, and not at the flat part 24, when the dish plate does not have a terminal rim, which is the case on the figure 3 .

The bowl-like shape of the dish plate cleaning between the bottom of the bowl and the level of its welded flange on the sheet surrounds a space in which takes place the first filler plate 4. As for the second filler plate 5, it adjoins the first on a thickness up to the rear face plate 11. It extends there transversely to the bottom of the rear portion 15 of the shell sheet on each side of the door, in the space delimited by the profile. U in outer extension, where it is wedged between the flat surface 24 on which rests the rim of the bowl and the rear face plate 11.

The basic elements that have been described up to now are found identically, with the same reference numerals, on the embodiments according to the invention illustrated by the Figures 4 to 7 . The Figures 6 and 7 illustrate a particularly elaborate embodiment of the invention, in which secondary characteristics of the invention are found which relate respectively to the lock, the strike and the anti-gripper device.

On the Figures 4 and 5 it was considered that the door is equipped with a multi-pin lock 7 which is fixed on the outer face of the rear face plate 11. There is illustrated a bolt 44 in the deployed position out of the housing. To come face to face when the door is in the closed position, there is provided a lock of autonomous manufacture. This striker 59 is made from a sheet closed on itself, a face 57 is hollowed out as many locks that the lock comprises bolts, in a relative arrangement in mutual correspondence. It is welded to the frame of the amount of frame 50, on its rear face 58 dressing an existing fixed frame (wall or partition 48 on the figure 2 ).

On the Figures 6 and 7 the strike is made in one piece with the rebate. The frame shielding structure is essentially constituted by a frame sheet 50 which is configured to complete a Z-shaped profile defining the rebate 51 by a U-shaped rear portion 55 whose lateral face 57 is located first in the extension of the rabbet forms the striker, hollowed out from obstructions 56. It will be noted that it has been admitted here that the conformation of the frame shield provides sufficient rigidity at the level of the striker so that reinforcement doubling can be omitted. that we made appear on the figure 2 in the form of a striker soul 47.

We observe on these Figures 6 and 7 , as indeed on the Figures 4 and 5 , that the sheet constituting the frame shielding structure, at the level of the rabbet 51, has longitudinal recesses 53 in which are placed flat intumescent joints 52. The figure also illustrates the presence of other intumescent seals of part and of another of the rebate, one at the front on the sleeping armor, the other at the back on the shoulder 25 of the side face of the sash shield, where the door comes overlapping the rabbet when it is in the closed position.

The lock 7 of the figure 7 is shown embedded in the sash shield structure, where it slides in a slide 41 which has been previously integrated into this structure ( figure 6 ). The slide in question takes place in a space provided for it by deformation of the shell plate 10. More specifically, the rear face plate 11 has for this purpose a stepped profile forming a rearwardly projecting bearing 42 which amounts to the right of the side face profile 12 join it by a flat face 43 forming a headpiece delivering passage to the locking bolts 44 of the locksmithing equipment of the door. At this point, the slider is generally bonded to the envelope sheet, in particular by welding points on the rear face plate 11 at the outer bearing 42.

With regard to the anti-clamp device, the same configuration is used in the different figures. Note however that, while remaining within the scope of the invention, it is not excluded to use a less elaborate configuration. From this point of view, as indeed to clarify if necessary other details of the embodiments of the armored door units described here, we can usefully refer to the description of the French patent application of the April 25, 2005 published under number 2 884 851 .

The anti-clamp device cooperates the opening shielding structure with the frame member 50 by the fact that the latter caps a wing 32 which projecting from the front face of the sash when the door is brought into position closed. Opposite the striker, in front of the frame, the profile of the frame sheet 50 extends the Z profile of the rabbet 51 by a U-shaped profile defining the contour of a groove 36. This groove is in practice sufficiently wide so that the prominent wing 32 of the opening structure penetrates easily into all relative positions between opening and sleeping. Instead of constituting the wing 32 by a terminal fold of the front face 13 of the cover plate, it has been preferred here to constitute it by a fold of a different counterplate 31, made integral with the opening shielding structure by flat welding flat on the outer face of the transverse fold 13 of the envelope sheet flanking the facade panel. Incidentally, the dotted line is illustrated that takes the cylinder of the lock control mechanism, through the against-plate 31 away from the front face fold 13 of the shell sheet.

Lock and keeper have been described assuming that, as it is generally preferable in safety shielding, the lock is of the multi-bolt type distributed over the height of the corresponding door jamb, if necessary supplemented by end bolts. But it is clear that the invention is not limited to this kind of situation. For the figure 1 on the contrary, the case of a single bolt lock was chosen at the level of an unlocking key at man's height.

Claims (12)

Door shield structure
comprising an envelope plate (10), configured by folding on itself to form a rear plate (11) covering the door opposite a front panel (2) specific to the door, and extend from and other in order to wrap the periphery of the door along the two door posts in a lateral profile forming a lateral face (12) on the edge of the door, followed on the front face of the door of a fold ( 13) coming back over the front panel (3) over a limited width,
and a bowl plate (20) which forms a transverse plate (21) coming to an intermediate position in the thickness of the door, at the bottom of a receiving cavity of a filling plate (4) internal to the door at the rear of the front panel (3), and which is folded into a Z-shaped lateral profile edge forming a transverse plate (22), extending outwardly from the transverse plate, through which the bowl plate comes in support of a cooperating flattening surface (24) of said lateral profile of the shell sheet (10) with which it is fixed by flat flat welding. Door shield structure according to Claim 1, in which the flat plate connection of the bowl plate with the shell plate is formed by plug welding. A door shield structure according to claim 1 or 2, wherein said cover sheet (10) provides a receiving space for a second filler plate (5) behind the bowl sheet, which extends transversely into a rear portion (15) of the shell plate (10) where its side face (12) has a U-shaped profile in external extension between the bearing surface of the bowl plate and the rear face plate (11). A door armor structure according to claim 3, wherein there are three housings inside the shell plate, including a first housing for the front panel between the front fold (13) of the shell plate and the transverse plate. (21) of the bowl plate, an intermediate housing for a filler plate extending on the same surface in the receiving cavity (23) of the dish plate, and a third housing for another filler plate which extends over a larger area against the rear face plate (11) to the side face of the sheet metal at its rear portion (15). Door armor structure according to claim 3 or 4, dimensioned such that in operation, when the armored door equipped with it comes against a complementary frame frame, the casing plate being placed as it is conventional in the rebate of the frame at the right of a front portion (14) of its side face (12), the envelope sheet comes at the same time, at the location of the rear portion (15) of its side face, outwardly outward overlap of the frame of frame thus closing the interval of the rabbet. Door shield structure according to one of Claims 1 to 5, supplemented by an anti-clamp device (30) comprising an opening element consisting of an anti-tamper plate (31) coming from the front face of the door. around its front panel, said counterplate being fixed over the fold (13) of the shell sheet and forming a wing (32) projecting forwardly. A door shield structure according to claim 6, wherein the anti-clip device comprises a frame member (35) configured to cooperate with said counterplate (31) by a U-shaped profile at the front of the frame forging a groove (36) into which the wing (32) of the counterplate (31) penetrates when the door is in the closed position. Door shielding structure according to one of Claims 1 to 7, in which in addition it is provided on the inside of said casing sheet, a receiving space of a slide (41) for housing a recessed lock. A door armor structure according to claim 8, wherein said shell plate in its rear face plate (11) is shaped in a stepped profile forming a bearing (42) projecting rearward to the right of the face profile. lateral (12) and joining the latter by a flat face (43) forming a headrest for locking bolts, and wherein said slide (41) housing a recessed lock is placed there at the rear of the sheet cup (20), against the rear face plate at said bearing (42), fixed on the shell sheet, usually preferably by welding. A safety shielded door unit comprising a shielding structure according to any one of claims 1 to 9, supplemented by a frame shielding structure for a cooperating fixed frame, said frame shielding structure consisting essentially of sheet metal frame (50) configured in a rebate profile (51) having recesses (53) in which intumescent joints (52) are located. A door lock according to claim 10, having a door shield structure according to claim 7, wherein the frame sheet (50) is extended forward to form said anti-gripper frame member (35). Door lock according to claim 10 or 11, the frame of which extends longitudinally at the rear to form a U-shaped rear part (55), a striker face (57) extending from the rebate profile being hollowed out. obstructions (56).

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