FR2594170A1 - DOOR PANEL, DOOR TRIM OR THE LIKE, AND METHODS FOR THEIR MANUFACTURE. - Google Patents

Abstract

The invention relates to a door panel, door trim or plate providing high security against burglary, the exterior shape of the plate, door or door trim not to be affected. In the sandwich plate, a grid 6 preferably made of metal and corresponding at least partially to the dimensions of the surface of the sandwich plate is incorporated in the hard foam layer 5. It is essentially a planar grid, which has a large number of passage openings, so that it can be bonded to the hard foam 5 although it can have homogeneous regions. A hard polyurethane foam and preferably a two-component foam is used as the hard foam. There are two possibilities of forming consisting either of forming half-plates 1a, 2a, 1b, 2b, the foam layers 5a, 5b which enclose the grid 6 between them being compressed with an adhesive 12, or by filling under high pressure l 'central space located between the surface layers which must be fixed with respect to each other and in which the grid 6 is located. (CF DRAWING IN BOPI)

Description

1 -?

  DOOR PANEL, DOOR TRIM OR ANALOGUE, SO

  WHAT PROCESSES FOR THEIR MANUFACTURE

  The invention relates to a door panel, a garnish

  door or the like, and methods for their manufacture.

  Door panels and upholstery are already known

  wise of doors, or plates of the type constituted by a sandwich plate, whose surface layers are

  connected to each other by a layer of hard foam.

  Known door panels, door trims or plates or the like generally perform the function

  for which they are provided but do not provide

  generally not the necessary protection against

  burglary. The need for security of the popula-

  increase year by year as individual offenses such as break-ins, burglaries,

or murders are going up.

  Therefore, the purpose of the invention is to propose a door panel, a door lining or a closure plate that is resistant to burglary or stops them, the protective measures of which are not visible from the outside but nevertheless allow to form the door panel, the door trim or the plate with aesthetic freedom, with the possibility of substantially preserving the known sandwich construction method and to achieve the parts without cost increases

  important work to be done.

  This object is achieved by incorporating into the hard foam layer a grid, preferably of metal and corresponding at least in part to the dimensions

  of the surface of the sandwich plate.

  The method of manufacturing a door panel, a

  door trim, plate or the like according to the

  The invention consists in the fact that, for the first embodiment of two half-plates, two layers of surface and, on their rear side, a layer of closed-porous hard foam is applied by means of a glue or a fluid polyester. , after which one applies to one or preferably both layers of hard foam half-plates an adhesive such as a fluid polyester or the like, and after placing at least one grid preferably made of metal between the layers of hard foam half-plates turned towards each other, they are pressed under high pressure with incorporation of the grid, or the grids being simultaneously embedded in the layers of hard foam during the compression operation and the glue layer or layers directly connecting the grids to the hard foam layers and the layers of hard foam themselves in

  the regions of the passage openings of the grid or grids.

  Another method of manufacturing a door panel, a door lining or the like, or a plate, consists in the fact that between two surface layers held at a fixed distance one is placed between on the other, whose space between them is limited

  laterally by peripheral fittings, and pre-

  at least in the center, preferably a flat grid and which is blown under high pressure into the space between the surface layers preferably a foam

  hard polyurethane for total filling of the space

this intermediary.

  Thanks to the invention, it is now possible to satisfy the security needs of current populations,

  without external modification of the door panel, the

  door or a through-plate or the like, so as to provide high protection against break-ins. The door can not be broken either

  by a very heavy tool because the protective grid contains

  naked in the sandwich plate can yield only partially,

  from which it follows that it is not possible for the thief to

  without much effort, a hole large enough to pass through. On the other hand, it is possible,

  either by arranging several parts of grill

  the, or still by cutting a smaller section in the metal grid, to drill an ornamental passage in the door panel which can then possibly be closed by an armored glass. The end user can therefore express his aesthetic tastes and the different models of doors of this type can also be put on the market. Armored glass cutouts

  may be more important than, for example,

  for peephole. What is essential is that the door does not lose its character because of the presence of grids

  protectors or the like screwed to the outside. Natural-

  When it is desired, it is possible to go up

  plus a decorative grid or a grid of pro-

  additional protection on the door panel or door trim. The disadvantage of the grids thus mounted is however that they can be unscrewed

  but to the astonishment of burglars the door unloads

  the grid then appears as an obstacle to

fight against break-ins.

  Due to the ease of its manufacture, the object of the invention is hardly the cause of additional costs compared to the manufacture of door panels or

  usual door packings because the additional operations

  are relatively few in number and it is sufficient to take into account only the additional costs

  metal grid, compared to standard sandwich doors

darts or the like.

  The settings shown may vary. The pressure with which the plates are pressed against each other can be variable, as can the high pressure

  foam is blown into the interstitial space

  may also be modified and located, for example,

between 6 and 12 bars.

  Embodiments of the invention are

  shown in the drawings in which: Figure 1 is a perspective view of a door panel with a lining; Figure 2 is a sectional view according to the two variants of the lines II-II of Figure 1; FIG. 3 shows the principle of a device for implementing the compression method which uses two half-plates; FIG. 4 represents a device for implementing the method by insufflation of hard foam in a central space; Figure 5 shows a metal grid as a

For example;

  Figure 6 shows the final result when using

a device according to FIG.

  In Figure 1 is shown a door panel 1, in the central section of which is shown a base plate constituting a lining 2. The constitution of the door panel and the constitution of its lining may be similar or comparable. The cuts along one or the other of the lines II-II are made as well in the door panel as in the door lining.

  in Figure 1, and these are shown in Figure 2.

  Figure 2 thus shows a section of a door panel, a door lining or a plate. this

  plate being made in the form of a sandwich. The

  Surface or exterior surfaces 3 and 4 may then be of different constitution, especially when the door or the like is intended to be mounted externally. In the embodiment shown, the surface layer 3 is constituted by a layer of polyester while the surface layer 4 is in turn constituted by two layers, namely a polyester layer 4a and a layer of glass fibers 4b located inside. Between these two layers 3 and 4 is interposed a layer of polyurethane hard foam 5 in which is embedded

  a metal grid 6 corresponding at least partially

  the dimensions of their surfaces. In Figure 2.

  it can be seen that the polyurethane hard foam layer is subdivided in its middle at 5a, 5b and that each of the surface layers 3,4 is associated with each half, so that when the metal grid 6 is not yet incorporated two half-plates 1a, 2a, 1b, 2b are provided with a separation line consisting of one or two layers of adhesive 7. The manner in which this result is obtained will be described later. A plate thus formed can be used depending on its finish as a total door panel or as a door trim or as a closure plate. The main thing is the grid

  metal 6 located inside the sandwich plate.

  There is the possibility of arranging the metal grid 6 over the entire door panel 1, and there is also the possibility of filling most of the edge regions of the door panel 1 with a metal grid 6 and to incorporate

  this one in the sandwich, and there is still the possibility

  the door lining of this ma-

  nally, or to provide the door lining 2 with a

  internal cut with an armored glass.

  The dimensions and arrangement of the metal grids

  6 are therefore variable. They must be at least partly formed according to the surface dimensions so that the protection is effective. It is not advisable to provide the metal grille 6

  protecting only in small areas.

  The surface materials or the surface layers are also exchangeable, so that the polyurethane hard foam can be applied by glue or binder to different surface layers to adhere to it. The surface layers can be

  made of wood, for example

  mentioned plastic, but they may also be made of metal, and when it comes

  valuable doors, for example copper or the like.

  If we consider door panels 1 smooth,

  there is the possibility to modify by step cutting

  wise the external appearance of the door panel, the cutout can also be and preferably protected by a shielded glass. When we consider in the door panel

  cuts, it is then advantageous to

  storing the grid 6 in a material that could be de-

  cut or sawn, for example aluminum. When it is not desired, the grid may consist of a steel grid or the like. What is essential is that the layers of foam or the layer insufflated inside

adhere to the grid.

  The grid may therefore comprise any cutouts

  in order to make possible a good transition between one side and the other side of the cross-section of the

door panel or the like.

  As regards the central layer, only a layer of polyurethane hard foam is suitable, and as already mentioned it can be optionally subdivided into two hard foam plates that can be glued on the surface layers 3 and 4. The glue must realize the bond between the metal, the foam and the polyester, wherever it is used, and preferably used as the adhesive of the fluid polyester. Other glues

  may also be suitable depending on the material used.

  In FIG. 3 is schematically represented the work to be done to obtain a plate according to the

figure 2.

  As can be seen in the figure, the layers of

  polyurethane hard foam 5a and 5b which have no thicker

  half of the total dimension are glued to the surface plates 3 and 4, preferably by means of

  fluid polyester or the like, or any glue

  8. A mount 9 which can be put in place and removed maintains these half-plates 1a or 2a or 1b and 2b, the mount being constituted so that the clamping portions 9a and 9b of the frame can move in the direction of the arrows. The device comprises on the outside of the compression jaws 10 and 11, the

  force required for compression not shown.

At - 2594170

  When the compression jaws are brought closer in the directions A and B of the arrows, the half-plates are assembled and the grid 6 placed between them, which is held by an element 9c of the frame, as can be seen in FIG. , is embedded in layers of hard polyurethane foam. In order to make this incorporation perfect, the surfaces of the inner walls of the polyurethane hard foam layers 5a and 5b are previously coated with a layer of adhesive 12. Next, the polyurethane layers

  half-plates 1a, 2a, 1b, 2b are compressed under a pressure of

  with the incorporation of the grid 6, until the glue 12, which can be applied on one side

  or on both sides, and which is preferably a polyes-

  ter fluid, take. This glue takes while the S15 grid 6 is incorporated regularly in the polyurethane layers and it actually adheres to the grid (s) and also to the layers of foam themselves in the region of the holes of the grid 6, and this directly and

  so that the foam layers 5a and 5b are closed.

  connected to each other. As one uses a

  very high, the grid is incorporated regularly in the layers and the glue, as mentioned, connects the

  foam and adheres to the grid surfaces, resulting in

  you a regular composite plate. Naturally, the pressure

  sion is applied equally to the right and to the left

  in the directions A and B arrows. The way according

  the compression force is applied to the cheeks

  compression res 10,11 has nothing to do with the subject of the invention and this application can be performed in a known manner. The essential is their regular approximation, a table 13 arranged in the lower region ensuring this regular approximation. Figure 3 shows

an example of such a device.

  As can be seen in Figure 4, the realization of a lining of a door panel of this type, or a plate, may also be different. In this case, the grid 6 is placed in the center between the two surface layers 3,4 which are placed at a distance

  fixed from each other and which may also be

  staggered by a number of layers and be made of any material, the grid being preferably metal. The latter could also be possibly made of other materials such as glass fibers,

  aramid fibers, carbon fibers and the like.

  or synthetic material. The advantage of the metal lies

  in its easier handling and also in

  its better stability for a relatively limited price.

  To then be able to put in place the layer of polyurethane foam, the central space 14 of the device is sealed so that not only the table 13

  below and mount 9 located in the upper region

  first close the central space 14, but also providing side walls 15 on the right and left sides. In this region of fixed gap which is limited and can be preferably modified by disposing again movable compression jaws 10 and 11, is infused between the surface layers 3,4 a foam

  polyurethane, that is to say a hard polyurethane foam

  thane, to completely fill and under high pressure the central space. It is possible to provide in the mount 9 a valve 16 for the evacuation of the air during

the process of insufflation.

  Figure 6 shows in cross-section the result of

  final state of a process implemented with the device of

Figure 4.

  Figure 5 shows the possible constitution of such a grid. This example is made of aluminum, but also possibly another metal, providing for large passage openings 60 between the son 61 of the grid. The connection between a zigzag wire and another is each time made by a bridging element 62

  in neighboring areas of each other.

  As can be seen from the above, the concept of

  the invention is not limited to the embodiment

  sented. Material data, for example

  polyurethane foam which is particularly advantageous

  need to be considered necessarily limiting, especially when using a closed-pore hard foam, because other foams are suitable

possibly in this case.

  The flat grid 6 which is shown has advantages

  in terms of its incorporation. But there is also

  the possibility of providing the grid 6 on the right and / or on the left with respect to the plane surface

  appendages that can act as anchors.

  Two of these appendices 63, which may be

  any shape, are shown in Figure 3.

  With regard to foam, it is preferable to

  A two-component foam such as a fluid polyurethane foam, which react completely with each other only in the central space 14. This result can be obtained by heat input, but this is not essential. Such a two-component polyurethane hard foam may be constituted for example by a

  polyol component to which a product is added

  such as isocyanate. These hard foams made of polyurethane

  rethane generally comprise at least two components.

  But there are also hard polyurethane foams with more than two components. Depending on the desired effect such as low flammability and the like, it is possible to

use different foams.

  The characteristics indicated, either individually or in combination, must be considered essential for the invention insofar as they are new

  compared to the state of the art.

Claims (14)

  1. Door panel, door trim or similar   a sandwich plate, the surface layers of which are connected to one another by a layer of hard foam, characterized in that a grid (6) preferably made of metal and corresponding at least   in part to the dimensions of the surface of the plate sand-   wich is incorporated into the hard foam layer (5).   Door panel, door trim or the like, characterized in that the grid, which is in the form of a flat grid (6), is preferably arranged in the center of the hard foam layer (5) in parallel. to the surface layers (3,4).   3. Door panel, door trim or the like   according to claims 1 and 2. characterized in that   the hard foam layer (5) is made of polyurethane.   Door panel, door trim or the like according to claim 3, characterized in that the layer   hard foam consists of a polyurethane with   components and preferably two components.   5. Door panel, door trim or the like   according to one of claims 1 to 4. characterized in that   the hard foam layer (5) is subdivided in the middle thereof, the grid (6) being disposed in the same manner in each of the facing half-layers of foam layers (5a, 5b) and is maintained in the layers (5a, 5b).   6. Door panel, door trim or the like   according to one or more of claims 1 to 5,   characterized in that the halves (5a, 5b) of the foam layers which face each other in the sandwich plate are each provided with a layer of adhesive, are in mutual contact by their free surfaces resting on each other , and are arranged, in the region of the grid, on the wires   (61) or bridging elements (62) of the grid (6).   7. Door panel, door trim or the like   according to one or more of claims 1 to 6.   terized in that it is used as a layer of glue.   in all positions or in individual positions   dual, a fluid polyester which is applied to the surface layer (3,4) and / or to the surfaces of the hard foam layers (5a, 5b), i.e. of foam.   8. Door panel, door trim or the like   according to one or more of claims 1 to 7,   in that the hard foam layer (5) or the layers   of hard foam (5a, 5b) is or are arranged in the same way and homogeneously between the surface layers (3,4) and surrounds or surrounds the grid (6) in the central region.   9. Door panel, door trim or the like   according to one or more of claims 1 to 8,   characterized in that the grid is made of metal and preferably aluminum and has a large number passage openings (60).   10. Door panel, door trim or the like   according to one or more of claims 1 to 9.   characterized in that the grid (6) consists of a material   reinforcing material such as glass fibers,   aramid fibers, carbon fibers and the like.   11. Door panel, door trim or the like   according to one or more of claims 1 to 9,   characterized in that the grid (6) is made of synthetic material.   12. Door panel, door trim or similar   according to one or more of claims 1 to 11,   characterized in that the surface layers (3,4) are made of wood, plastic plates, metal or the like, and are of one and / or or more layers.   13. A method for producing a door panel, door trim or the like, according to one or more   Claims 1 to 11, characterized in that for   first make two half-plates (la, 2a, lb, 2b)   on each of the two surface layers (3.4) a closed-pored hard foam layer, preferably a layer of polyurethane hard foam. on their back side, by means of a glue or a fluid polyester, after which one or preferably the two layers of hard foam (5a, 5b) of the half-plates are coated with an adhesive such as a fluid polyester or the like, and after placing at least one grid (6), preferably a metal grid, between the hard foam layers of the half-plates facing each other, these   are compressed under high pressure with   the grid (6), or grids (6) fitting together   on a regular basis in the layers of hard foam   compression and the glue layer (s) connecting the grids (6) to the hard foam layers and the hard foam layers themselves, in the   openings (60) for the at least one grilles (6), to each other.   14. Process for producing a door panel, a door trim or the like according to one of   or more of claims 1 to 11, characterized in that   that between two surface layers (3,4) placed at a fixed distance from one another, the central space (15) of which is limited laterally by peripheral linings, preferably at least one center preferably flat grid (6) and a hard foam, preferably a rigid polyurethane foam, is blown under high pressure into the central space (14) between the surface layers (3,4) for the complete filling of the 'space central.