MXPA00007667A - Door inner element - Google Patents

Abstract

The invention relates to a door inner element (3) for motor vehicle doors (1) which is arranged between a door outer side and an inner paneling (7). In order to provide a structural shape which has a minimized weight while, however, remaining dimensionally stabile and which perfectly seals, the invention provides that a sealing body (12) is attached on the edge thereof during production in the spray-foam process.

Description

INNER ELEMENT OF THE DOOR Description of the invention The invention relates to an interior element of the door for doors of motor vehicles, to be arranged between an external part of the door and an internal lining, being that on the edge side it is applied a shutter body. An inner element of the door of this nature, incorporated into the door of the motor vehicle, serves as support for a multitude of functional parts and their fastening elements. As a rule, the inner element of the door is made of steel sheet. These supports are then too heavy depending on the basic concept. It is also complex to seal the perforations. Finally, there is a limitation in the possibilities of conformation. On the other hand, door elements manufactured from plastic were also used as supports for the door components. Outside of a reduction in weight, this choice faces problems in the acoustic function; neither insulation nor damping worthy of being mentioned are achieved. This solution is also unsatisfactory in terms of water tightness. To compensate for such defects it is necessary to resort to additional elements, such as sheets, insulating sheets, etc.

An interior element of the door with the aforementioned characteristics is known from DE 196 20 148. The interior element of the door that is specified therein as a support for the grouping of components is constituted by a combined material of massive fibers. This known design is not considered satisfactory from various points of view, such as, for example, with regard to acoustic technique and stability. From the state of the art mentioned above, the task of the invention consists in creating an interior element of the door convenient to use and technically simple to manufacture. This task is first solved substantially with the object of claim 1, wherein it is intended to manufacture the interior element of the door by means of the process of injection sponge, and facing the cross section comprises two massive contour layers and a central layer spongy porous. In combination with the application of the sealing body, the supporting function and the sealing function are also combined in a substantially reduced weight body. There are better possibilities of conformation. The polydirectionality of the interior element of the door that results from this, which fundamentally has a plate shape, creates better conditions for its reinforcement. In this, an additional stabilizing factor is the formation of a membrane like glaze, typical of the process of sponge injection. To this we must add the good insulation and damping effects. The transition to the building component of the door, carrier of the interior element of the door, and which can be, for example, an internal metal sheet in the form of a door frame, and this also with regard to sealing by the sealing body on the edge side. By virtue of the injection-molded design of the interior element of the door there are the best conditions for the retention of the sealing body in the membrane of the sponge body by injection. It is an elastomeric gasket that is extruded directly onto the injection-molded body, so that it is firmly anchored in the comparatively thin membrane layer of the injection-molded body. The extrusion temperature of the elastomeric material reaches to soften the membrane-like layer of the sponge body by injection and retain the elastomeric material, that is, the sealing body, completely within the slits. On the other hand, damage to the sponge body by injection is not caused thereby. To increase your tightness, a continuous hollow space can be provided in the sealing body. This not only reduces the weight, but also represents a material saving. Other details are derived from document DE 295 11 492 U unpublished, and in addition to document EP ... (Application No. 97 115 150.1). These documents are therefore included in all their contents, even for the purpose of incorporating the characteristics of these documents in the claims of the present application. It is also convenient for the interior element of the door to be shaped with cable clamping elements. Such measures replace the classic analog clamping devices. It is also proposed to form a support flange to fix a loudspeaker. By reinforcing the edge of the corresponding hole, this forms the base sufficiently firm for fixing elements, such as screws, and simultaneously a sealed transition area. It is also convenient that a wire passage be made. In order to ensure the tightness between the cable section and the cable passage, a soft plastic material (TPE) rim is provided in the cable passage. Here, too, an elastomeric seal with an internal gap can be produced in the same way, so that there is an extremely elastic annular membrane. Even the internal element of the door is attended to by the need for a correspondence for the fastening elements, such as screws, etc., by providing a bushing injected into the interior element of the door. In general, this is a case of a bushing having an internal thread. This, like the fixing flange previously explained, can be made of more resistant massive plastic. Needless to say, the elements such as the cable passages, the bushing, are associated in a large amount according to the basic form of the construction. It is further proposed to provide a support plate embedded in the inner element of the door for fixing a motor. Conveniently it is a metal plate. This can already be adapted to the particular equipment, that is to say that it can be provided with fastening holes or staples that are highlighted to the extent of the adjustment to fix the base plate of the motor to this support plate. Finally, it is also proposed that in the interior element of the door bridges formed by means of injection foam technology, accessible on the underside of the bridge, be provided. These loop-like structures serve for threading, either as a passage for cable runs or even a Bowden traction cable. Finally, a solution related to the stabilizing aspect is achieved by a partial displacement of the wall of the interior element of the door to create a laying section for supplementary pieces in the form of strips. In this case it can be the housing for a steel insert. In the following the invention proposes to configure the sealing body as a caterpillar placed on a wide surface of the interior element of the door. This can be placed accurately by a robot. This produces a self-adherence between the materials, this eventually taking advantage of the still existing heat of the sponge body by injection. Conveniently, the sealing body lies within an integrally shaped groove. So that the latter does not form a weak point, the groove is formed by displacing the wall by forming on the back side, that is on the other wide surface, a bulge by injection. In this way it is possible that with respect to the object under consideration, a total thickness of only about 5 mm is taken as a basis. The change of direction that forms the groove of the material of the sponge body by injection generates even an increase in stability. Regarding this, the bulge is simultaneously a stabilizing rib. There is great stability of the component if the density of the interior element of the door varies along a cross section, specifically between 0.7 g / cm3 in a non-fluted contour layer and 0.1 to 0.6 g / cm3 in the fluffed central layer. The density of the compact polymeric materials is approximately 1 g / cm3. By means of a sandwich structure (sandwich type) of this kind, components of great rigidity, low weight and great integration potential can be manufactured. Next, it is envisaged to provide a proportion of polymers HMS (high melt strength) based on PP in the foam material by injection. This increases the melt stability of the copolymer. The basic component itself is around 90%. By means of this propylene polymer of isomeric structure the processing possibilities are broadened and a stable growth of the cells with a uniform cell size is realized. There is a largely homogeneous structure. It is then proposed that the injection foam material contains fillers or reinforcement. Such elements contribute to yet another increase in the rigidity of the lightweight components. It can be an addition of approximately 20% glass fibers or talc. It is further proposed to provide anchoring perforations on the side of the front surfaces, which through integral shaping have a massive coating of the hole in the direction of the perforation. A tubular rib of this type is joined at both ends to the massive layers of the contour of the interior element of the door transverse to it. The lining of the hole reinforces the area, so that the fastening elements that pass through it, such as self-tapping screws, etc., staples or the like, find sufficient strength despite the reduced density. In this context, it is also considered convenient that an anchor hole is surrounded by a flanged section of integral flange projecting cantilevered on the side of the front surface. These flanges increase the field that surrounds the hole and provide more "substance". Measures can also be taken in the sense of providing sleeves, threaded bushes, etc. on the inner door element. embedded in the injection. It can be treated in this case of metal interspersed pieces. A design that even has independent transcendence exists if on the side of the wide surface of the inner element of the door is carried out a partial removal of material by milling or non-through cutting, creating an access to the central layer of lower density. In this case, it is kept free from perforation through the internal element of the door. Only one of the massive layers of the contour is provided with a window, through which the desired access for a fastening element is available. This in particular can be done by taking advantage of the uncovered areas of the central layer as access for an anchoring element. Finally, as a solution of self-importance, it is still necessary to fix staples in the interior element of the door without removing the integral external membrane. In this case it can be rotary anchors to be driven into pits correspondingly oriented to the center, whose star-shaped anchoring arms penetrate cutting the sides of the pit. The object of the invention is explained below in more detail on the basis of an exemplary embodiment illustrated by the drawings. They show: figure 1 the interior element of the door in side elevation, figure 2 a section through a motor vehicle door with internal element of the built-in door, figure 3 an amplification III-III taken from figure 2, showing the shutter body of the edge part between the interior element of the door and an inner metal sheet of the door, figure 4 a cut according to the line IV-IV of figure 1 showing a fastening element for cables FIG. 5 shows a section along the line VV of FIG. 1 showing a cable passage with a guide collarFigure 6 shows a section according to line VI-VI of Figure 1 showing a passage for cables with flange, Figure 7 shows the section according to line VII-VII of Figure 1, which reproduces an injected bushing, Figure 8 the cut according to line VIII-VIII of figure 1 detailing a fastening flange with a loudspeaker represented with lines dotted and dashed, figure 9 cut according to line IX-IX of figure 1 representing a support plate to fix an engine, figure 10 the cut according to the line XX of figure 1 which represents a bridge area for fastening, for example, a Bowden cable, figure 11 a variant of the interior element of the door in elevation lateral, figure 12 a front elevational view of the previous one, figure 13 the sectional view according to line XIII-XIII of figure 11, in amplification, which reproduces the association of the sealing body and the configuration of an anchor perforation, the figure 14 the cut according to line XIV- XIV of Figure 11, likewise in amplification, showing the peripheral frontal surface, and this as a continuation of the massive layer of the edge, Figure 15 a more bulky area in comparison with the central layer of the inner element of the door, which offers , for example, "substance" for screwing, figure 16 a cross-section through the interior element of the door forming an anchoring area, figure 17 the corresponding anchoring elements, figure 18 a plan view of the figure 16 with anchoring element correctly aligned for its association, prior to anchoring, figure 19 a cut analogous to that of figure 16, with the anchoring element associated in operationally correct form, figure 20 a cut through the inner element of the door, more amplified, figure 21 a representation analogous to that of figure 16, in which a process is applied with material roughing for fixing access for the element of anchoring, figure 22 the same with the associated anchoring element in operatively correct form, figure 23 a plan view on figure 22 with the anchor that is reproduced outlined to points and lines. The door 1 of the motor vehicle shown in FIG. 2 in vertical section houses an interior element 3 of the door in its interior space 2..

This extends substantially vertical with the door mounted. The interior element 3 of the door is associated with an opening 4 of a metal sheet 5 in the form of a frame inside the door. Completely closes this opening 4 and simultaneously seals it. The outer metal sheet of the door closing the inner space 2 towards the outside is designated 6, A closing on the side of the driving cabin is formed by a covering 7 which closes the inner space 2 there towards (the driving cabin) . This coating can on that side cover an intermediate layer 8 known as a pad. The edge of the opening 4 is realized as a step 9 facing the external side of the door, which forms a shoulder 10 of continuous peripheral support. Against this the periphery of the interior element 3 of the door finds its seat tight. The respective edge has the reference symbol 11. The seat is made by interposing a shutter body 12. This is formed immediately on the edge side in the interior element 3 of the door during manufacture by the injection foam method. The sealing effect with respect to the support shoulder 10 extending correspondingly to the periphery is increased by forming a hollow space 13 in the obturating section of the obturator body 12. It is an elastomeric seal with a continuous hollow space 13. The hollow space 13 is produced by the gas injection process which takes place simultaneously. The corresponding fluid can be fed through one or more channels. Its injection holes can be closed autonomously. The fixing base 14 of the shutter body 12 facing the edge 11 grasps above the area of the corner of the edge 11 facing the outer side of the door. Naturally, the section of the fixing base 14, in this case angularly passing over the front surface, can cover the entire front surface 15 of the edge 11 and be anchored. As shown by the amplified representation of FIG. 3, in this case there is a membrane-like layer 16 over the entire contact area. In this the elastomeric material does not penetrate. It forms, so to speak, a layer of adhesion. With respect to the module of the door, it is understood that interior element 3 of the door can be used as material: PP, PA, ABS or PET and a foaming agent (in an endothermic or exothermic form) for the swelling. In a single fluffing process, the interior element 3 of the door obtains its definitive shape and equipment, as will be explained later. For the body 12 obturator are suitable as materials: TPE (TPE-V or SEBS). This material is also used for perforations, etc., which are explained below. An interior element 3 of the door produced, for example, in bicolor injected cast iron, allows to take advantage of the advantages of a forming process. You can perform complicated geometries and variations of the thickness of the wall and simultaneously associate other elements. The interior element 3 of the door is light, stable and insulating or damping. The interior element 3 of the door is formed by clamping elements 17 for cables. The cable is designated 18 (compare Figure 4). In particular it is two independent legs 19 capable of springing. These protrude transversely from the general plane of the plate of the interior element 3 of the door. The base of the leg widens towards the body of the plate. The transversely open insert opening 20 of the cable holding element 17 has a slightly undercut development so that an excellent clip fastener is obtained. In contrast to an extension of the cable 18 along the body of the plate, FIG. 5 shows a development of the cable 18 passing through the body of the plate. For this purpose a step 21 for cables is made. This comprises a hole 22 in the body of the plate and a sealing tube 23 which develops in a curved shape. The latter narrows towards its free end up to the dimension of the circular section of the cable 18 or below it, so that sealing is obtained. The plug tube 23 can be of the same material as the plug body 12. The conformation on the external glazed side of the interior element 3 of the door comprising a hard membrane is optimal, also in this case by anchoring it in a membrane-like layer 16. The sealing tube 23 can also be perpendicular with respect to the general plane of the interior element 3 of the door instead of adopting a curved shape shown therein, and then optionally be bent at will in a direction of random development of cable 18. Step 21 for the cable reproduced in FIG. 6, it renounces an independent protruding shape in the form of a tube or nozzle in favor of a lining of the hole 22 there represented by the thickness of the element 1. In this case, the cable passage 21 is formed by a flange 24 of soft plastic material, conveniently using the material applied with respect to the body 12 obturator, specifically under identical linkage conditions as explained for the latter. A peripheral hollow space 25 is also considered. Practically there is an annular membrane that fills the hole and whose central opening is widened by introducing the cable 18 tightly adjoined thereto. 7 shows the association by injection technique of a bushing 26. It is one with internal thread 27 for a screw comprising the corresponding external thread as fixing element 28. The aforementioned bushing 26 extends transversely to the general development of the plane of the interior element 3 of the door, specifically being within a geometry 29 in the shape of a trapezoid. Rooted (the bushing 26) on the narrower head surface of the trapezoid and protrudes into the channel space 30 made by displacement of the wall that does not exceed in length outward to the fastening element 28. The free front edge of the bushing 26 rather remains at the root with the outer side of the left of the interior element 3 of the door. Figure 8 reproduces a fixing flange 31.

This serves to mount a loudspeaker 32 that is represented in lines to points and stripes. The latter has a clamping flange 33. In total, the speaker 32 is adjusted in its dimensions to be associated with the edge supported on the exposed fixing flange 31. As regards the fixing flange 31, this can be made of rigid PVC. The exposed position of the fixing flange 31 in this annular case is based on a geometry 34 in the manner of a truncated cone of a section close to the edge of the interior element 3 of the door. The fixing flange 31 may have a rectangular cross section or possibly also a square cross section. Its edge of the outer edge facing the body of the plate of the interior element 3 of the door is embedded, specifically parallel to the plate over the entire width of the annular cross section, and transversely to it by half the thickness of the ring. In this case, the same adhesion effects as described above exist. The hole 35 of the inner element 3 of the door, thus stably fastened, ends at the same level as the inner side of the fixing flange 31. The displacement of the wall which in this case extends rotationally symmetrical to create the geometry 34 in the form of a truncated cone stabilizes the surrounding area of the fixing flange 31. Another design is derived from Figure 9, and this in the sense that a part is associated to a displaced plane area of the body of the plate of the interior element 3 of the door. In this case, it is an interleaved support plate 36. This forms a stable support base for an engine 37 outlined in lines to points and stripes. The displacement of the wall of the body of the plate of the interior element 3 of the door which in figure 9 goes to the right is designated by 38. It takes into account a recess 39 analogous to the contour of the plate. This recess leaves a shoulder 40 on the edge free in the exposed area. The latter ends in front of a recess 41 in the manner of a window, so that the motor 37 obtains an excellent lateral support at 42. The support plate 36 shown has patrician projections 43 which grip from behind in the manner of clips in an opening 44 of matrix. It can be an irreversible snap connection. The patrician ridges 43 are mushroom shaped engaging elements that are locked behind the shoulder of the die opening. In the case of the support plate 33, it can be a metal plate. In figure 10 a bridge 45 is shown. This is formed by injection technique in the interior element 3 of the door. The lower part 46 of the bridge is accessible. These are clips that are drawn from the general plane of the plate by cutting and embossing. They form an eye 47, for example to thread a cable or, as shown in Figure 10, a Bowden traction 48. The structure of the corresponding cut is also derived from Figure 1, specifically in the indication area of the XX cut. of this figure. The lower side 46 of the bridge which is shown as an internal arch with descending diagonals may also comprise projections for the lateral support of the Bowden traction 48 (not shown). If necessary, the blade part not occupied by the Bowden drive 48 can be closed on both sides by means of a sealing compound. As can finally be seen from figure 2, there is a displacement 49 of the wall in the central area. This is towards the side of the door 1 of the motor vehicle facing the driver's cab. In this way, a housing section 50 is made in the interior element 3 of the door, for example to incorporate a stabilization element in the form of an additional part 51 in the form of a steel strip. The accommodation section is a channel having a trapezoidal cross section. This and other highly reinforced parts as well as the support plate 36 form a good base for the installation of the window crank device and its spindle sections., elevator, etc. The inner element 3 of the door can be screwed to the support shoulder 10. A bonded union can also be used. The variant of the interior element 3 of the door reproduced in FIG. 11 is also constituted by injection-molded material. The wide group of thermoplastic materials is used. Among them are, for example, PP, PA, ABS, PET, PC + PBT, etc. In order to obtain special material properties, two types of PP are combined with each other. The basic component, which represents up to about 90%, is constituted for this by a copolymer. In general, better values are obtained in terms of impact resistance with block copolymers with lower olefins, preferably ethylene. In order to increase the melt stability of the copolymers, a HMS polymer (high melt strenght) based on PP is added to the basic component. By means of this propylene polymer of isomeric structure the possibilities in the elaboration are expanded and a stable growth of the cells with a uniform cell size is realized. Filler and reinforcing substances are also added to the material for injection-molding, that is to say to the polymeric substances. It is up to 20% of glass fibers and talc. By means of these reinforcing substances, the rigidity of the component is improved. The sandwich-like structure (sandwich type) of the injection-blown component on which this interior element 3 of the door is also based takes advantage of planes of different density. This in particular is realized in that the density of the interior element 3 of the door through a first cross section is between 0.7 and 1.4 0.7 g / cm 3 in a layer 52 of the non-fluted contour. By layer 52 of the contour is meant the areas covered by the wide surface of the component, and not the front surface which is previously designated 15 in the text, but which is also closed by the extension of the contour layer 52. This front layer, that is the inner peripheral area of the front surface 15, bears the reference symbol 53. On the other hand, the core density of the interior door element 3, which exists as a porous sponged central layer 54 enclosed by both layers massive 52 of the contour and the peripheral front layer 53, is from 0.1 to 0.6 g / cm3. The foamed structure of the thermoplastic foam melt has a surprisingly high homogeneity which ends in the direction of the massive layer 52 of the contour almost as a boundary surface, so that the peripheral hard shell desired here is closed on all sides. While the massive layer 52 of the contour, naturally including the front layer 53 can not be easily penetrated, the hermetically encapsulated porous central layer 54 can be pierced or punctured, that is to say it can be penetrated, with relatively moderate forces. The benefit that can be exploited because of this will be explained in more detail below. The high modulus E of the contour layers that is achieved is achieved even with a small proportion of the thickness of the same. Thus, for example, sufficient thicknesses of 0.4 and 0.7 mm with a total component thickness of approximately 5 mm are sufficient. The stiffness values are 2500 N / mm2 in the case of these layers 52 of the contour. At least one value of 600 N / mm2 still remains in the central layer 54. All this forms the basis for an unobjectionable support of the equipment with the usual components that are housed in the door 1 of the vehicle, such as the loudspeaker, the loudspeaker baffle, the cable clamping element 17, the cable 18, just to mention some. As far as the obturator body 12 is concerned, it is now placed on the interior element 3 of the door as a wake controlled by a robot. For this purpose the obturator body 12 is configured as a caterpillar closed at the ends which is placed on a wide surface of the interior element 3 of the door. It is a spongy body with a highly elastic membrane 56 that is formed integrally. It refers to figure 13. There, membrane 56 is reproduced as a simple delimiting line. For a good anchoring of the obturator body 12, it is enough with the body thereof which here has a mushroom-shaped cross-section whose base is inside a slot 57 that starts from the wide surface. This slot is already taken into account from the injection foam process. The shape of the groove is provided by the contour layer 52 of the component which is consequently on this side of the wide surface. The flanks and the bottom of the slot 57 are thus stable, also supported by the highly resistant core of the injected sponge, that is, the central layer 54. In the area of positioning of the body 12 shutter there are the best stabilization conditions, since the slot 57 is formed by displacement of the wall. Consequently, there is no reduction in the thickness of the component. By displacement of the wall, a bulge 58 is produced by deformation. This is located on the rear side, that is, the other wide surface 59 of the interior element 3 of the door. It can be recognized that the bulge 58 has a width that greatly exceeds the interior width of the slot 57. The ratio is approximately 1: 2. The bulge 58 has an equal continuous height and leaves this plane only when the corresponding stop surface provided by the shoulder 10 supporting the staggering 9 of the internal metallic sheet 5 of the door 1 of the vehicle deviates from this. The slot 57 has such a straight depth that the bottom provided by the embossed massive contour layer 52 is substantially aligned at the same level as the layer 52 of the contour on the rear side. The anchoring of the base of the obturator body 12 is favored by the clamping force of the contact surfaces. There is thus produced a thermoplastic linkage of the body 12 obturator made of soft foam. Figure 13 that reproduces the described association of the sealing body shows, in combination with Figure 11, a particular drilling for the penetration of fastening elements. In the area of the indication of section XIII-XIII, figure 11 shows that from the side of the front surface, anchoring perforations 60 are formed irregularly distributed on the periphery of the interior element 3 of the door. Even if it could be laser drilling or cutting, the perforations 60 that are represented are formed directly during the injection foam process. The inner hollow of the perforations 60 (cf. also FIG. 13) is thus subjected to the same conditions of hard membrane formation as described in detail with respect to the layers 52 of the contour and the front layer 53. In other words: the anchoring shoulders 62 produced by integral shaping obtain a massive and stabilizing coating 61 for the perforation. This is done so to speak as a hub-shaped section and constitutes a bridge of solid material as a hollow rivet between both layers 52 of the contour separated by the central layer 54. The transition edges are rounded transversally convex. In this way, the component is not easily crushed in the event of excessive force being applied when screwing in a fastening element, such as, for example, a screw. Rather, a spring tension effect occurs due to the repositioning force. This contributes to the assurance of the subject. The aforementioned anchoring perforations 60 form anchors connecting the layers with an extremely stabilizing effect. The stabilization even extends to the clamping area of the obturator body 12 due to the close proximity to the slot 57. Mutual stabilization of the entire periphery of the sponge body by injection is likewise produced. As can also be seen from figure 11, an anchoring hole 60 is surrounded by an ear section 62 projecting cantilevered from the side of the front surface, likewise swelled in an integral manner. These ear sections 62 protrude in the outward direction. It can be semicircular or trapeze-shaped flange-shaped ears. They offer a wrapping surface so wide that the center of the axis of the anchoring holes 60, which are generally circular with respect to the contour of the hole, is aligned flush with the front surface 15 of the interior element 3 of the door. Also in these anchoring perforations 60 or also any other pre-arrangements within the entire field of the interior door element 3 are provided the bushings, threaded bushes, etc., preferably by the injection incorporation of these elements. To this end, many versions of the basic version are made. Figure 15 shows a particularity of the interior element 3 of the door in the sense that an accumulation 63 of visible material is made on the wide surface 59, that is the rear side of the interior element 3 of the door, and this to create a sufficient depth of bolting for those elements that do not come out in the direction of the association. The layer 52 of the contour circumvents the corresponding fertilization in a dome-like manner. In contrast, the layer 52 of opposite contour is followed by a parallel plane face. These partial accumulations of material are also used with respect to the basic version, and are explained there. Refer to Figures 4 and 9. However, there in connection with the creation of an unobjectionable anchorage of the support plate 36 to a shoulder 40 of the edge whose area of the inner corner has a greater thickness of the cross section made 39 remaining thickness of the interior element 3 of the door which in principle is flattened. Even though the anchoring holes 60 are in principle only made outside the limits of the obturator body 12, the non-through anchoring perforations are made in the internal field of the inner element 3 of the door circumvented by the obturator body 12. In this way, the sealing effect as a dividing wall of the interior element 3 of the door is completely preserved. The passage of moisture is counteracted. The placement of the corresponding anchoring elements 64 can be cable fasteners, guides for Bowden drives, etc. It is achieved in two different ways. One of them consists of carrying out a partial removal of material by milling on the wide surface side of the interior element 3 of the door. This situation is reproduced in figures 21 to 23. The reference symbols are applied analogously as already explained, and this partly without repetitions of the text. For this purpose, a depression is produced that reaches the central layer 54 from the desired wide surface. As can be seen from figures 21 and 23, it is a pit 65 in the manner of an oblong hole. The pit 65 arrives shortly before the layer 52 of massive contour that in figure 21 is found on the underside, this in the form of still remaining spongy structure of the central section 54. By introducing a milling machine (not shown), the oval wall 66 of the pit oriented transversely to the general direction of extension of the interior element 3 of the door is removed by milling. A suitable anchoring element 64 is inserted and, after the insertion-turn association, the desired anchor is produced. The clamping turn is effected with extremely moderate forces, by virtue of which the access to the porous central layer 54 of reduced density is unblocked by the milling machine. The anchor 67 entering or penetrating this structure is simultaneously the blade 67 'which acts plane parallel to the direction of extension of the interior element 3 of the door. A protruding hook 68 can be provided on the back of the blade. This compares an inverse turn of the anchor 67. If you want to obtain a greater penetration depth for the anchor 67, then it is possible to carry out the partial swelling of the material of the spongy mass that can be seen in figure 21, when carrying out there the accumulation 63 of previously mentioned material towards the pit 65 by means of the protruding extension outwards in the direction of the layer 52 of the contour away from the association point. According to figures 21 to 23, in the case of the anchoring element 64 it is an object that only has an anchor. In a different manner, the situation is constituted according to figures 17 to 20, which exemplifies another form of the association of the anchoring element. In this case the pit 65 is designed in the form of a malt cross. It is, so to speak, a cross pit. However, in this case machining with chip removal is dispensed with. The pit 65 is as formed. In this case, moreover, the procedure is carried out so that the anchoring elements 64, for example in the form of a staple, are fixed to the interior element 3 of the door, preserving the integral outer membrane. That is, neither the layer 52 of the contour above the pit nor the wall 66 of the pit are removed. The properly designed anchor also has a cross-shaped design. Their four anchors 67 or respectively blades 67 'which are distributed in an angularly equal manner grip below the remaining remapping parts 69 of the sponge by injection, so that they themselves, by cutting, make their way through the wall 66 of the pit. The repositioning force of the wall 66 of the pit again even generates an at least partial closure of the opening of the cut. In this case too, the hook 68 is made, which protrudes transversely from the anchor 67. In general, there is a central orientation pit system for the self-cutting entrance to the lateral flanks of the cross-shaped anchor of the anchoring element. The partner 70 of the anchor 67 in the form of a cross, which protrudes freely from the plane of the anchors 67 above the edge of the pit, is not circular on the side of the wall of the jacket, so that by means of the application of a tool In addition, the insertion of the anchoring element 64 is facilitated. The non-circular contour of the cross-section can even be a hexagon, so that nut keys can even be applied. It is not necessary to make a piece of the partner 70 with a staple 71 coaxially adjacent. The flattened staple 71 is then also not used as an operation manipulator. It is linked to partner 70 in a rotating manner. This also has the advantage that the staple 71 can be comfortably aligned with respect to the object to be held, such as a Bowden traction. Accordingly, the position or final rotational position of the partner 70 is insignificant in terms of the angle of rotation. All the disclosed characteristics are an integral part of the invention. The disclosure of the application is therefore also included the content of the disclosure of priority documents (copy of the previous application) relevant / annexes to its full extent, also in order to include the characteristics of these documents in the claims of the. present request.

Claims (22)

1. CLAIMS 1. Interior element of the door for doors of motor vehicles, to be arranged between an external part of the door and an internal lining, whereby on the side of the edge a shutter body is applied, characterized in that the interior element of the door It is manufactured by the injection-molding process and facing a cross-section it has two massive contour layers and a spongy porous core layer.
2. 2. Interior element of the door according to claim 1, characterized in that the cable element is formed to the interior element of the door.
3. Interior element of the door according to one or more of the preceding claims, characterized in that a clamping flange is formed for fixing a loudspeaker.
4. 4. Interior element of the door according to one or more of the preceding claims, characterized in that a cable passage is formed.
5. 5. Interior element of the door according to one or more of the preceding claims, characterized in that the cable passage has a soft plastic rim.
6. 6. Interior element of the door according to one or more of the preceding claims, characterized in that the interior element of the door has an injected bushing.
7. Interior element of the door according to one or more of the preceding claims, characterized in that the internal element of the door has a support plate for fixing a motor embedded therein.
8. 8. Interior element of the door according to one or more of the preceding claims, characterized in that the support plate is a metal plate.
9. 9. Interior element of the door according to one or more of the preceding claims, characterized in that the interior element of the door has bridges formed by the injection technique, whose lower side is accessible.
10. 10. Interior element of the door according to one or more of the preceding claims, characterized by a partial displacement of the wall of the interior element of the door as a positioning section for a supplementary piece in the form of a strip.
11. 11. Interior element of the door according to one or more of the preceding claims, characterized in that the sealing body is configured as a caterpillar placed on a wide surface of the interior element of the door.
12. 12. Interior element of the door according to one or more of the preceding claims, characterized in that the sealing body is inserted in an integrally shaped slot.
13. 13. Interior element of the door according to one or more of the preceding claims, characterized in that the groove is formed by displacing the wall with the formation of a swelling bulge by injection on the back, that is, the other wide surface.
14. 14. Interior element of the door according to one or more of the preceding claims, characterized in that the density of the interior element of the door differs along its cross section, being that it is specifically between 0.7 and 1.4 g / cm3 in a contour layer
15. 15. The interior door element according to one or more of the preceding claims, characterized in that the material of the injection foam has a proportion of a high-strength polymer. to the merger.
16. 16. Interior element of the door according to one or more of the preceding claims, characterized in that the material of the injection foam contains filler or reinforcement substances.
17. 17. Interior element of the door according to one or more of the preceding claims, characterized in that anchoring holes are made on the side of the front surface, which through the integral shaping have a massive coating of the hole in the direction of the perforation.
18. 18. Interior element of the door according to one or more of the preceding claims, characterized in that an anchoring bore is surrounded by a flanged section of integral flange projecting cantilevered on the side of the front surface.
19. 19. Interior element of the door according to one or more of the preceding claims, characterized in that bushes, bushings, etc. are provided in the interior element of the door. embedded in the injection.
20. 20. Interior element of the door according to one or more of the preceding claims, characterized in that a partial removal of material or a non-through cut is made on the interior element of the door, creating an access to the door. lower density central layer
21. 21. Interior element of the door according to one or more of the preceding claims, characterized in that the exposed areas of the central layer serve as access for anchoring elements.
22. 22. Interior element of the door according to one or more of the preceding claims, characterized in that staples are fixed to the internal element of the door leaving an integral external membrane intact.