FR3039849A1 - FIRE RESISTANT OR ACOUSTICALLY ATTENUABLE DOOR COMPRISING DECORATION OR SHOCK PROTECTION PANELS - Google Patents

Abstract

Leaf for a fire-resistant or acoustically soundproof door unit, comprising a central frame (2) comprising on a front face a filling face (6) designed to bear against a tightness of the door frame, this facing receiving a decorative panel that can protect against shocks, or a shock protection panel (10), the filling face (6) having a groove made on a part or on its entire thickness, having at least one a depth substantially equal to the thickness of the decoration or protection panel (10), this groove flushly receiving the panel which is fitted on this side.

Description

FIRE-RESISTANT OR ACOUSTICAL ATTENUATION DOOR COMPRISING DECORATION OR SHOCK PROTECTION PANELS

The present invention relates to a door leaf fire resistant or providing sound insulation, comprising decoration panels or impact protection, and a door block receiving such a leaf, and a method of realization in a building of a door equipped with this type of leaf.

Some buildings have interior doors with a single leaf or double leaf, which must meet fire resistance standards for fire compartmentalisation in the building.

In this case the leaves and their frames must firstly provide a seal against fire and flame, and secondly provide thermal insulation to prevent the transmission of fire by conductivity or radiation.

In addition these closures can also provide an airtight acoustic insulation between different parts of the building. This airtightness also prevents the spread of fumes during a disaster.

It is known to produce in series in a workshop this type of door block, comprising a frame equipped with its leaves, which is then ready to be placed in the opening of a partition of a building having dimensions adapted to the to receive.

Furthermore, certain types of buildings require lateral protection against the shocks of the partitions as well as doors, or decorations that can be used for protection, including at certain heights horizontal strips or having any decorative geometry.

Particularly for hospital or accommodation establishments receiving dependent persons, who use wheelchairs, beds or trolleys with wheels, a horizontal protection strip is generally provided along the partitions and doors for the impact of these gear avoid damaging the walls. In particular, protection may be provided at an average height corresponding to the level of the bases and hospital bed heads, as well as low protections corresponding to the level of the wheelchair footrests. In particular, a protective strip with a width of 300 mm is usually installed at a height of 900 mm.

The doors are generally more heavily stressed, for example when a single person pushing a trolley opens a door through the trolley used to press the doors.

It also uses this type of shock protection, or decorative that can serve as protection, for buildings for early childhood, such as nurseries, schools or day care, catering with trolleys for transporting dishes, or buildings containing sports facilities such as sports halls or changing rooms. In particular, these types of buildings that are open to the public must meet regulatory requirements for fire safety and sound reduction.

The decorative panels that can protect against shocks, or the protections against shocks, were formerly generally installed in the building site, on the doors put in position in the partitions, thanks to a gluing of the panels with a contact adhesive of the neoprene type. For these decorations or protections can be used different materials ensuring a good finish, such as metal panels made of stainless steel or aluminum, wood, or plastic such as PVC.

However, this type of bonding on the site poses health problems, by the use of glues comprising a large proportion of solvents. In addition, when the door block prepared in the workshop has been the subject of a fire resistance classification report issued by an approved organization after tests, the final addition of the decorative or protective panels glued afterwards may pose a problem of nonconformity of the whole with respect to these minutes.

Another type of problem that arises for decoration or protection panels reported on the face of a leaf, is that we obtain then at the connection of these panels a thickness shift on the contour of the face press on the seals of the frame, which can cause a punctual fault sealing allowing acoustic transmission.

To avoid this problem, some manufacturers of door blocks then provide a decorative panel or full impact protection applied on the entire face of this leaf. But in this case we add a useless mass, and we increase the costs.

The present invention is intended to avoid these disadvantages of the prior art.

It proposes for this purpose a door leaf for a fire-resistant door block, or providing an acoustic seal, comprising a central frame comprising on a front face a filling lining provided to bear on a sealing of the door frame , this facing receiving a decoration panel that can protect against shocks, or a protection panel to shock, remarkable in that the filling face has a groove made on a portion or on its entire thickness, having at least on one side a depth substantially equal to the thickness of the decoration or protection panel, this groove flushly receiving the panel which is fitted on this side.

An advantage of this leaf is that by producing in series in a workshop with a good level of precision and a reduced cost the groove on the facing, then by applying industrially by various means such as gluing followed by pressing the panel decoration or protection in the groove, a leaf is obtained including a good quality of fastening the panel in safety conditions that can be easily adapted, and having a smooth surface giving a high level of finish, and avoiding a projection that can create a lack of support and sealing on the airtight seal.

In addition, the product obtained having a fire resistance classification report, and being completely finished in the workshop, this approval for fire resistance is no longer modified thereafter, which allows a total compliance with the regulations. fire.

The leaf according to the invention may furthermore comprise one or more of the following characteristics, which may be combined with one another.

In particular, the groove may form a strip having both sides thereof having a depth substantially equal to the thickness of the decoration or protection panel, for receiving the panel in the form of a strip fitted on these two sides.

According to one embodiment, the groove comprises in its cross section a curved surface coming to connect to the outer surface of the facing. This reduces the amount of material to be machined on the facing panel.

In this case, the curved surface advantageously comprises a regular curve gradually progressively connecting tangentially to the outer surface of the facing.

According to another embodiment, the groove has a constant depth substantially equal to the thickness of the decoration or protection panel.

In particular the groove can be machined in the thickness of the facing.

As a variant, the facing may comprise a base layer of constant thickness covering the entire surface of this leaf, receiving above decorative or protective panels fitted into groove spaces arranged between finishing layers of the facing of the facing. same thickness as these panels.

As a variant, the facing may consist of a succession of decorative or protective panels fitted into spaces forming grooves arranged between partial facing panels, these different panels forming the entire thickness of the facing. The invention also relates to a fire-resistant door block or acoustic sealing, this door block comprising a frame and one or more leaves, being prepared in advance to be mounted in an opening of a partition wall. a building, the leaves including any of the preceding features. The invention furthermore relates to a method of producing a door on a partition of a building, this fire-resistant door or providing an acoustic seal, this method comprising a stage of manufacture in the workshop of a door block comprising leaves having any of the preceding features, and a step of mounting this door block in a corresponding opening of the partition. Other features and advantages will become apparent from the following description of the invention, a description given by way of example only, with reference to the appended drawings, in which: FIG. 1 is a view of a window according to the invention; presenting a first assembly of the decoration or protection panel; Figure 2 is a detailed view of the assembly of the panel on this leaf; Figure 3 is a detail view of the mounting of the decoration or protection panel assembled in the same manner, forming a strip; and Figures 4, 5 and 6 are views of a leaf having a mounting of the decoration panel or protection according to variants.

Figures 1 and 2 show a leaf part of a door block having a front side indicated by the arrow denoted "AV" which is approved for fire resistance, or to ensure a good acoustic seal avoiding noise transmissions. These two functions of fire resistance and sealing can be provided simultaneously by the leaf.

The leaf pivoting on hinges 16, comprises in its thickness a central frame 2 ensuring the rigidity of the structure, covered on both sides with a rear facing 4 and a front facing 6, ensuring by an equilibrium effect of two sides a rigidity to the frame. The front face of the leaf bears on seals of the frame of the door block.

In a variant, the door block may comprise two leaves constructed on the same type.

The facings 4, 6 involved in the mechanical strength of the leaf are provided to ensure a good finish of the door block. In particular these facings 4, 6 can be made by raw wood panels, or by medium panels formed by agglomerated wood particles, which can be painted, or covered by a topcoat comprising a laminated material, plastic or a wooden plating.

The front facing 6 is machined to form a horizontal groove 12 of constant cross section, shown in Figure 2 by the hatched section. The groove 12 extending over a height H comprises a horizontal upper side 14 having a thickness L2.

In a variant, the groove may comprise an upper edge comprising any inclination or curvature, as presented by the curvature 18.

The lower part of the groove 12 forms a curved surface in a regular curve, which progressively connects at the bottom in a tangent manner to the outer surface of the facing 6.

A decoration or protection panel 10 bonded to the front facing 6, comprising a thickness L2, has its upper edge fitted on the upper side 14 of the groove 12, then follows the crown of this groove, to finish down at the bottom. base of the leaf. This decoration or protection panel 10 extends over the entire width of the leaf. In general, a plastic sheet of the PVC type or a metal sheet which may be of aluminum or stainless steel is used for the decorative or protective panels. The decoration or protection panel 10 may have a thickness of between 0.5 and 3 mm. In the case of a decorative panel or metal protection the thickness will be small to allow easy bending the sheet to follow the curved curvature of the groove 12.

This gives a front face of the leaf having a smooth surface, without recess, which allows a regular and continuous support on seals around the frame of the door block. The slightly convex portion of the protection panel following the curvature of the groove 12, is not very visible, and does not hinder this seal.

The leaf is manufactured in the workshop by first making the groove 12 of rectilinear or any shape, on the front facing 6 with a machine tool for rapid execution due to the small volume of material removed in the groove, and a good precision, then ensuring an assembly by depositing a glue with a protection of the operators by aspiration of the vapors, or by using glues without solvent in addition to adhesives of maintenance. Finally, the decorative or protective panel 10 is applied and effectively pressed with suitable tools.

This provides a speed of execution, and repeatability and a good quality of the finished leaf.

Figure 3 shows the detail of a leaf with a decorative panel or protection 10 forming a horizontal strip not going to the bottom of the leaf.

The front facing 6 comprises a horizontal groove 12 of constant cross section, having two separate parts each comprising an upper side 14 or a lower side 20 having a thickness L2. Then, from the upper side 14 or the lower side 20, going towards the other side, the convex surface has a regular curve of height H which is progressively connected to the level of the outer surface of the facing 6. The part intermediate between the two curved surfaces is the outer surface of the facing 6 which remains raw.

The decoration or protection panel 10 forms a strip having on each side an edge fitted on the upper side 14 or on the lower side 20, followed by a slightly convex portion, then an intermediate flat portion. An external surface of the leaf is obtained that is smooth to ensure continuity of support on seals.

In addition one can realize several bands of decoration or protection on the leaf.

FIG. 4 shows a leaf comprising a front facing 6 on which grooves 30 have been machined comprising an upper groove having non-parallel curved edges, an intermediate groove comprising horizontal edges, and a lower groove extending to the bottom of this leaf. . Each groove has a constant depth L2 equal to the thickness of the decoration or protection panel 10.

A decorative or protective panel 10 is then applied by gluing in each groove 30, which is precisely fitted into its groove, so as to obtain an outer surface of the leaf that is smooth and completely flat.

In the same way, there is a continuous support on seals, as well as a beautiful appearance of the leaf.

Figure 5 shows a leaf receiving the front side of the central frame 2 a facing 6 comprising a continuous base layer 34 covering the entire surface of the leaf, which has a smooth outer surface and a reduced thickness. In particular one can use for this base layer 34 a medium panel having a thickness of the order of 2mm.

Then gluing from the bottom of the fitted parts to each other having the same thickness, comprising a lower decoration or protection panel 10 coming from the bottom of this leaf, then an intermediate finishing layer 32 forming a strip. There are then several decorative or protective panels 10 alternating with intermediate finishing layers 32, comprising a first horizontal-edged panels, a second panel with a horizontal lower edge and an inclined upper right-hand edge, and a third curved-edge panel. parallel.

Similar thicknesses of the same decorative or protective panel 10 and topcoat 32 are obtained in the same manner, with a smooth outer surface having a good appearance and providing continuous support on seals.

Figure 6 shows a leaf receiving the front side directly on the central frame 2, starting from the bottom adjusted to each other with the same thickness, a lower decoration or protection panel 10 coming from the bottom of this leaf, a first panel partially facing 40, a second decorative or protective panel 10 forming a horizontal intermediate strip, a second partial facing panel 40, a third decoration or protection panel 10 forming an inclined strip, then a final partial facing panel.

In this case the decoration or protection panels 10 and the partial facing panels 40 fitted to each other constitute the whole of the facing 6 having a sufficient thickness covering the entire face of the central frame 2 to ensure its rigidity.

Thicker decorating or protective panels are used, but operations are reduced by eliminating the machining of grooves.

For all these variants, the doors are finished in the workshop, with good aesthetics and surface continuity, to meet the fire resistance requirements as well as the acoustic constraints due to good sealing.

In particular, decoration or protection panels can be arranged on both sides of the leaf in a similar manner depending on the requests.

Claims (10)

1. Leaf for a fire-resistant door block or providing acoustic sealing, comprising a central frame (2) comprising on a front face a filling face (6) provided to bear on a sealing of the frame of the door, this facing receiving a decorative panel that can protect against shocks, or a shock protection panel (10), characterized in that the filling face (6) has a groove (12, 30) made on a part or on the whole of its thickness, having at least on one side (14, 20) a depth (L2) substantially equal to the thickness of the decoration or protection panel (10), this groove flushly receiving the panel which is adjusted on this side. Door leaf according to Claim 1, characterized in that the groove (12, 30) forms a strip having both sides (14, 20) thereof having the depth (L2) substantially equal to the thickness of the panel. decoration or protection (10), to receive the panel in the form of a strip fitted on these two sides. Door leaf according to claim 1 or 2, characterized in that the groove (12) has in its cross-section a curved surface which is connected to the outer surface of the facing (6). 4. leaf for door unit according to claim 3, characterized in that the convex surface has a regular curve gradually progressively connect tangentially to the outer surface of the facing (6). Door panel door according to claim 1 or 2, characterized in that the groove (30) has a constant depth substantially equal to the thickness (L2) of the decoration or protection panel (10). Door panel door according to claim 5, characterized in that the groove (30) is machined in the thickness of the facing (6). Door leaf according to claim 5, characterized in that the facing (6) comprises a base layer of constant thickness (34) covering the entire surface of this leaf, receiving above decorative panels or protectors (10) fitted into groove spaces (30) disposed between finish layers of the facing (32) of the same thickness as said panels. Door leaf according to Claim 5, characterized in that the facing (6) consists of a succession of decorative or protective panels (10) fitted in groove spaces (30) arranged between panels partial facing (40), these different panels forming the entire thickness of the facing. 9. A fire-resistant or acoustically soundproof door unit comprising a frame and one or more leaves, the door block being prepared in advance for mounting in an opening of a partition of a building, characterized in that that the leaves are according to any one of the preceding claims. 10. A method of producing a door on a partition of a building, fire resistant or providing acoustic sealing, characterized in that it comprises a step of manufacturing in the workshop a door block comprising leaves according to the invention. any of claims 1 to 8, and a step of mounting the door block in a corresponding opening of the partition.