WO1999042693A1 - Abstandhalter - Google Patents
Abstandhalter Download PDFInfo
- Publication number
- WO1999042693A1 WO1999042693A1 PCT/EP1999/000454 EP9900454W WO9942693A1 WO 1999042693 A1 WO1999042693 A1 WO 1999042693A1 EP 9900454 W EP9900454 W EP 9900454W WO 9942693 A1 WO9942693 A1 WO 9942693A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- spacer according
- side walls
- spacer
- leg
- legs
- Prior art date
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Classifications
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
- E06B3/663—Elements for spacing panes
- E06B3/66309—Section members positioned at the edges of the glazing unit
- E06B3/66314—Section members positioned at the edges of the glazing unit of tubular shape
- E06B3/66319—Section members positioned at the edges of the glazing unit of tubular shape of rubber, plastics or similar materials
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
- E06B3/663—Elements for spacing panes
- E06B3/66309—Section members positioned at the edges of the glazing unit
- E06B3/66323—Section members positioned at the edges of the glazing unit comprising an interruption of the heat flow in a direction perpendicular to the unit
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
- Y10T428/139—Open-ended, self-supporting conduit, cylinder, or tube-type article
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
- Y10T428/139—Open-ended, self-supporting conduit, cylinder, or tube-type article
- Y10T428/1393—Multilayer [continuous layer]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
- Y10T428/2457—Parallel ribs and/or grooves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24744—Longitudinal or transverse tubular cavity or cell
Definitions
- the present invention relates to a plastic spacer for insulating glass elements, wall panels or the like.
- spacers are used, for example, to hold the panes of an insulating glass pane in a parallel position to one another and, in conjunction with sealants, to seal the gap between the panes formed between the panes of glass towards the edge of the pane and to absorb desiccants.
- Spacers are often used in the form of hollow profiles made of metal (stainless steel or aluminum).
- the profile has two parallel side walls, on which the disks rest, and two legs which extend between the side walls and which run essentially transversely to the side walls of the hollow profile and connect them to one another.
- the object of the present invention is to bring the above-mentioned conflicting problems with plastic-based spacers to a common solution.
- the freedom in increasing the wall thickness of the side walls enables the stiffness necessary for the handling of the hollow profiles in the production of the insulating glass elements with respect to its longitudinal direction, while the advantage of the use of the Plastic heat obtained is obtained reduced heat transfer and the latter can be further minimized.
- z. B. with a 20 mm wide spacer, the wall thickness of the side walls of the hollow profile 3 mm or less.
- the longitudinal stiffness is preferably increased by the choice of the wall thickness ratio and / or reinforcement of the plastic material so that the deflection of the profile in the plane of the side walls is at most approximately 100 mm / m profile length. This eliminates the need for one-handed adjustment work, since the devices customary in the case of metallic spacers can be used. - 4 -
- the thickness of the legs is mainly determined by the necessary transverse stability of the hollow profile, i.e. the ability of the profile to support and hold the two glass panes of the insulating glass elements at a defined distance, even if tensile and / or compressive forces occur due to wind forces acting on the panes.
- the smaller wall thicknesses of the legs combined with the elastic properties inherent in the plastic material, give the hollow profile an adaptability in the transverse direction, which allows the cross-sectional shape of the hollow profile to be subject to deformation of the panes (exposure to wind forces). at least partially adapts.
- the legs allow an elastic compression or expansion in the transverse direction, so that the position of the side walls of the profile can at least partially follow the deformations or deflections of the panes.
- Limiting the thickness ratio to approximately 0.6 or less, or even to 0.4 or less, serves to further reduce the heat transfer while maintaining or simultaneously improving the above-mentioned further advantages.
- These webs can be designed so that they extend essentially over the entire height of the hollow profile and thereby connect the two legs together.
- the webs can also be designed as ribs which project freely from one leg and extend in the longitudinal direction of the profile.
- a further minimization of the wall thicknesses with constant or even increased strength, in particular also longitudinal stiffness, can be achieved by reinforcing the plastic material.
- the proportion of reinforcing materials in the plastic material of the side walls will be greater than in the legs. This requirement applies in particular against the background that a number of preferred reinforcing materials have a higher specific thermal conductivity than the plastic material itself. With the reinforcement of the plastic material in the legs, the thickness thereof can be further reduced, although with regard to the thermal conductivity of the leg Hollow profile no arbitrary increase in the proportion of reinforcing materials is possible. Rather, an optimal relationship should be sought with regard to the thermal conductivity of the plastic material, the reinforcing materials and the costs.
- the reinforcement thereof is preferably carried out only in partial areas.
- reinforcement fibers which are preferably selected from glass fibers, carbon fibers, aramid fibers and / or natural fibers. These can be used as short fibers, long fibers or optionally as continuous fibers or in the form of any combination thereof.
- the plastic material can also be made with particulate, i.e. especially reinforce granular or flaky fillers.
- particulate i.e. especially reinforce granular or flaky fillers.
- wollastonite, mica and / or talcum are particularly suitable as particulate materials.
- reinforcing fibers are used to reinforce the side walls and possibly the webs, these are preferably embedded in the plastic material with a preferred orientation in the longitudinal direction of the hollow profile.
- reinforcing fibers are used for the legs, these are preferably arranged crosswise, since this results in a larger distance for heat conduction in the individual reinforcing fibers, i.e. a lower heat transport capacity seen on the hollow profile.
- fibers optionally in the form of a composite material, such as e.g. a fiber mat or fiber braid, preferably used.
- webs which may be arranged in the cavity of the hollow profile and are parallel to the side walls.
- a particularly inexpensive form of reinforcement of the side walls lies in the use of sheet metal strips to be arranged parallel to the side walls. These can be applied to the outside of the profile, in particular glued on.
- the sheet metal strips are preferably embedded in the plastic material of the side walls, so that corrosion problems, adhesion problems with sealing and adhesive compositions or even problems in handling the initially produced sheet metal strip-free profiles are avoided from the outset.
- the gluing process can be avoided as a manufacturing step.
- the sheet metal strips are preferably used as perforated sheet metal strips, which allow a particularly good mechanical connection with the plastic material of the side walls.
- sheet metal strips provided with embossings or surface roughnesses produced differently are advantageous, which, however, in particular when embedding them in the side walls, cannot produce quite the same effect of the mechanical connection to the surrounding plastic material as the perforated sheet metal strip.
- Typical sheet metal strip thicknesses are approximately 0.1 to 1.0 mm, the sheet metal strip thickness preferably not being greater than half the thickness of the side walls when the sheet metal strips are embedded in the side walls. - 8th -
- the reinforcement by sheet metal strips can of course also be used with existing webs of a profile.
- a further reduction in the heat transport through the profile can be achieved with foamed plastic materials.
- reinforcing materials / fillers such as Hollow glass spheres, hollow fibers, etc., which enclose a certain volume of gas, are thought.
- the spacers according to the invention preferably have longitudinal and / or transverse grooves on outer surfaces of the side walls. This can improve the adhesion of the sealing compounds to the spacer.
- spacers according to the invention can be provided their side walls with retention agents on their outer surfaces, in particular in the form of depressions, roughening or undercuts for quasi-mechanical anchoring of the sealant. These can also be present on the outer surfaces of the metal strips if these are arranged on the outside to reinforce the side walls.
- a protective layer for example an epoxy layer or a layer of inorganic-organic hybrid materials, which in turn has other functions, namely that of the adhesion between the sealant and the hollow profile and a certain one UV protection can offer.
- the protective layer can also function as a diffusion vapor barrier.
- a diffusion vapor barrier will be highly recommended for many plastic materials in order to prevent water vapor from entering the space between the glass panes and thus prevent the desiccants in the hollow profile from being exhausted prematurely, which would otherwise result in fogging inside the insulating glass elements.
- the proposed epoxy coating in its function as a vapor barrier, has the advantage over the conventionally proposed metal foils that it is considerably more resistant to cracking and detachment than the metal foils applied to the profile or incorporated in the profile. In addition, the problem of very different coefficients of thermal expansion is avoided (bimetal effect). - 10 -
- the protective layer proposed according to the invention can also improve the chemical resistance to the sealing materials, so that stress cracking corrosion problems previously observed are solved.
- the outside leg can be provided on its outside with a diffusion barrier in the form of a thin aluminum foil, a stainless steel foil, a metal-coated plastic film or a plastic film coated with inorganic-organic hybrid materials.
- This diffusion barrier can either be applied directly to the plastic material of the leg and, if necessary, be covered by an epoxy layer. Another possibility is to insert the metal foil into the plastic material when the profile is being extruded.
- an epoxy layer is arranged between the diffusion barrier and the outer leg surface.
- the spacer forming a polygonal frame can comprise a V-shaped recess in the regions of the hollow profile forming the respective corners of the frame, which extends over the entire width of the outer leg and essentially over the entire height of the side walls, and at which is the apex of the V-shaped recess in the inner leg, and that a triangular extension piece is attached to the opened legs to form the corners.
- the butt joints resulting in both alternatives in the corner area are preferably firmly connected to one another by means of mirror, laser, ultrasound or high-frequency welding or gluing.
- Figure 1 is a sectional view of part of an insulating glass element with a spacer according to the invention according to a first embodiment.
- FIG. 2 shows a perspective illustration of a second embodiment of the spacer according to the invention
- FIG. 3 shows a sectional view of a third embodiment of the spacer according to the invention.
- FIG. 4 perspective view of a fourth embodiment of the spacer according to the invention.
- FIG. 5 shows a sectional view of a fifth embodiment of the invention
- FIG. 6 shows a perspective schematic illustration of a fiber-reinforced spacer according to the invention
- FIG. 1 shows a spacer according to the invention, designated overall by reference number 10, which is arranged in an insulating glass element between two glass panes 12 and 14 and holds them at a defined distance.
- the spacer 10 has an essentially rectangular hollow profile in cross section, which is formed by two side walls 16 and 18 and two legs 20 and 22.
- the two side walls 16, 18 are parallel to the glass panes 12, 14 - 13 -
- the two legs 20, 22 are arranged and connected by the two legs 20, 22 and form with the side walls 16, 18 a cavity 24 which serves to hold desiccant 26.
- This drying agent is only shown as a few grains in FIG. 1, but usually fills the entire cavity 24.
- the ratio of the thicknesses of legs 20, 22 to the thickness of the side walls 16, 18 is approximately 0.35.
- the longitudinal stiffness of the hollow profile is increased by reinforcing fibers 28 incorporated into the side walls parallel to the longitudinal direction of the profile (for the sake of clarity, only a few of the reinforcing fibers are shown). These reinforcing fibers will preferably be arranged substantially uniformly distributed over the cross section of the side walls.
- the spacers according to the invention are essentially free to choose the proportions of the reinforcing fibers, even if the reinforcing fibers 28 should have a much higher thermal conductivity than the surrounding plastic. Because with the spacer according to the invention, the heat transport capacity across the insulating glass element is effectively limited by the comparatively small thickness of the legs 20, 22. This even allows a certain amount of reinforcing fiber in the legs 20, 22 themselves, which will be discussed in more detail in connection with FIG. 6.
- the leg 20 arranged in the interior of the insulating glass element has a multiplicity of openings 30 which connect the space between the two glass panes 12, 14 to the cavity 24 of the spacer hollow profile. As a result, water vapor trapped in the intermediate space can reach the drying agent 26 and is bound there.
- a vapor barrier 32 for example made of a thin metal foil, is arranged on the outside of the leg 22.
- the vapor barrier 32 is shown greatly enlarged in FIG. 1 for the sake of clarity. Their thickness is usually 100 ⁇ m or less. Adequate vapor barrier properties already have vapor-deposited metal layers on the outer surface of the leg 22.
- sealant 34 for. B. Polysul- fiddichtmas-sen, and adhesives 35, z. B. butyl adhesives, connected to the glass panes, so that there is a coherent phase of sealant / adhesive, which is substantially over the entire height of the side wall 16 of the spacer 10 over its leg 22 and again over substantially the entire height of the Side wall 18 extends.
- the hollow profile of the spacer is provided on all its outer surfaces with an epoxy coating 36.
- the previously described vapor barrier 32 is applied to the epoxy coating 36 applied directly to the leg 22.
- the metal vapor deposition or the metal foil of the vapor barrier 32 must be applied to the leg 22 only before the epoxy coating.
- the inner surfaces of the hollow profile are also preferably coated with the epoxy.
- FIG. 2 shows a second embodiment 40 of the spacer according to the invention, which represents a further development of the spacer 10 from FIG. 1.
- a parallel web 46 which, like the two side walls 42, 44, extends over the entire height of the hollow spacer profile and is connected to the two legs 48 and 50. This measure allows the thickness of the two legs 48, 50 to be further reduced in relation to the thickness of the side walls 42, 44, which results in an improvement in the insulation values.
- the web 46 also serves to improve the longitudinal stiffness.
- the web 46 divides the hollow profile of the spacer 40 into two cavities 52 and 54, which are each connected via openings 56 and 58 to the space between the glass panes of an insulating glass element.
- the cavities 52, 54 are filled with desiccant as described above for the cavity 24.
- the legs 48, 50 can be provided in a strip shape with reinforcing materials to improve the mechanical stability; shown in FIG. 2 as strip-shaped fiber mats 49a, 49b, 51a and 51b.
- the reinforcement materials are usually completely embedded in the plastic material.
- the fiber mats 49a, 49b, 51a and 51b are shown exposed only for the sake of simplicity.
- Fig. 3 shows a spacer 60 glued between two glass panes 62 and 64.
- the structure of the spacer 60 roughly corresponds to the structure of the one already described in connection with FIG. 1, which is why only the differences will be discussed here.
- the outer contour of the spacer 60 differs from that of the spacer 10 in that the longitudinal edges facing away from the intermediate space formed between the glass panes 62, 64 - 16 -
- the spacer 60 comes without an epoxy coating due to a suitable choice of material for the adhesive 70 (butyl adhesive).
- the vapor barrier 74 is also applied to the outer leg 72 of the spacer 60 without an intermediate coating.
- the outer surface of the spacer 60 (vapor barrier 74) is coated with a sealant 76, which is usually produced on the basis of a polysulfide.
- a multilayer plastic film of the inorganic-organic hybrid crosslinked type can be used, which layer components, e.g. A1203, Si02, amorphous, diamond-like carbon.
- the metal layers which are either applied directly to the spacer or a plastic film, can be applied by vapor deposition (single or multiple layers), electroplating, sputtering, flame spraying, wire arc, plasma spraying, plasma polymerization, etc.
- FIG. 4 shows a further variation of the hollow profile of the spacer according to the invention as a spacer 80.
- the side walls 82 and 84 of the spacer 80 are provided with longitudinal grooves 86 on their outer surfaces. These serve to improve the connection of the sealing compound to the surface of the spacer.
- these longitudinal grooves can be combined with transverse grooves 88 running perpendicularly to them, which, in certain applications, alone can offer a sufficient improvement in the adhesion of the sealing compound to the spacer surface.
- the surfaces of the side walls 82, 84 can be roughened. - 17 -
- the legs 81, 83 have reinforcements 81a, 83a in strip-shaped areas, which are arranged at a distance from the side walls 82, 84 and parallel to the longitudinal direction of the hollow profile of the spacer 80.
- FIG. 5 shows a further variant of the retention means on the basis of a spacer 90, the side walls 92, 94 of which are drawn differently only for the purpose of explaining different profile variants.
- Side wall 92 is shown with reinforcing ribs 95, 96 which at the same time protrude into the sealing compound as a kind of anchor and thus ensure a mechanical connection to the sealing compound.
- the side walls 92 and 94 are sharply chamfered at their ends 98, 99 facing away from the intermediate space to be formed between the glass panes in order to enlarge the sealing surfaces and the volume of the sealing compound, which results in a certain angling of the surfaces of the side walls 92, 94 pointing towards the interior of the hollow profile to ensure sufficient wall thickness in this area of the side walls 92, 94.
- Perforated metal strips 93a, 93b are embedded in the plastic material of the side walls 92, 94 over the entire length of the hollow profile in order to stiffen it.
- FIG. 6 shows a spacer 100 according to the invention with a simple rectangular profile.
- effects of the reinforcement with reinforcing fibers are to be discussed, which can be transferred analogously to all other exemplary embodiments described.
- the hollow profile of the spacer 100 is formed by side walls 102, 104 and legs 106, 108.
- the cavity of the spacer 100 can be divided by a web 110 (broken line), which allows the thickness of the legs 106, 108 to be reduced. Because one of the - 18 -
- the plastic material of the side parts is preferably reinforced with reinforcing fibers 112 which are arranged parallel to the longitudinal direction of the spacer 100.
- the proportions of the reinforcing fibers in the plastic material can be varied within wide limits, essentially based on the desired effect of improving the longitudinal stiffness. Due to the thinner design of the legs 106, 108 according to the invention, even a comparatively high proportion of reinforcing fibers in the side walls 102, 104 contributes at most insignificantly to an increase in the heat transport transverse to the side walls 102, 104 through the entire hollow profile.
- the heat transfer performance is determined essentially by the design of the legs 106, 108. Since these legs 106, 108 do not have to contribute anything to the longitudinal stiffness of the profile, and all the more so as the side walls 102, 104 yes If you have already experienced additional stiffening by longitudinal fibers 112, the legs 106, 108 can be designed essentially exclusively according to their function. The same also applies in the event that the side walls 102, 104 are reinforced with sheet metal strips, as shown in FIG.
- the function of the legs 106, 108 is, on the one hand, to keep the side walls 102, 104 at a defined distance and, moreover, to absorb forces which act on the spacer profile via the glass panes of an insulating glass element, in particular by wind pressure or by wind suction.
- the legs 106, 108 can also be provided with a reinforcement, in particular with reinforcing fibers. Since the legs have to absorb transverse forces, reinforcement is also advantageous, which can absorb such forces. Has proven to be particularly suitable with regard to - 19 -
- the heat transfer capacity of the legs 106, 108 to be held in a ring has proven the use of reinforcing fibers lying crosswise, which at the same time form an acute angle to the longitudinal direction of the spacer. This angle should preferably be 40 ° to 60 °, since on the one hand sufficient forces can be absorbed in the transverse direction and on the other hand a lower heat transport capacity can also be achieved with reinforcing fibers with higher specific thermal conductivity due to the increased transport routes (fiber length from one side wall to the other).
- the proportion of reinforcing fibers in the plastic material of the legs 106, 108, if any, should be significantly lower than in the side walls, since here, of course, any increase in the proportion of reinforcing fibers leads directly to an increase in the heat transport capacity.
- the possibility of being able to further reduce the wall thickness in the legs 106, 108 with an increased proportion of fibers does not necessarily compensate for the increase in heat transport capacity due to the proportion of fibers. Therefore, depending on the specific thermal conductivity of the fibers on the one hand and the thermal conductivity of the plastic material of the legs on the other hand, an optimum must be determined based on the reinforcing effect of the reinforcing fibers and the choice of wall thickness, based on the selected width of the profile.
- the table compares the hollow profile cross section shown in FIG. 1 in typical dimensions with the gains in longitudinal stiffness of the hollow profiles according to the invention with different wall thicknesses and proportions of reinforcing fibers, the values of a conventional aluminum profile (example 1) being additionally indicated for comparison. - 20 -
- Examples 1 and 2 relate to profiles in which a completely unreinforced plastic is used.
- Examples 4, 5, 11 and 12 only the side walls are reinforced with glass fibers, while the legs are generally free of reinforcing fibers and materials.
- the values for the glass fiber content and the designation of the glass fiber type are shown in parentheses in the table to clarify this fact.
- profiles 6, 7, 8, 9 and 10 are given in which there is an equal distribution of the reinforcing fibers in the plastic material of the legs and the side walls.
- the plastic materials in the side walls and the legs are reinforced in the same way. It can also be seen from these examples that a strip-shaped reinforcement of the legs will have an additional positive effect on the longitudinal stiffness (f y ) of the profiles in the plane of the side walls.
- Examples 13 and 14 use a different reinforcement principle.
- metal strips are incorporated in the plastic material in the side walls, similar to that shown in FIG. 5.
- the values given in the table concern sheet metal strips that are not perforated.
- the height of the metal strips in these examples is 6.0 mm.
- These examples show that the reinforcement of the side walls with simple (steel) sheet metal strips already yields significant gains in the longitudinal stiffness.
- the longitudinal stiffness for example in Example 14, in which a 1.0 mm thick sheet metal strip is used for reinforcement, is comparable to the reinforcement effect that the reinforcement with continuous glass fibers can achieve at a content of 70% by mass (see Examples 11 and 12). .
- the production costs are, however, much cheaper for the hollow profiles reinforced with sheet metal strips.
- fibers can also be embedded in the plastic material in the same profile in addition to the reinforcements made of sheet metal strips - 21 -
- width / outside (B) and width / inside (b) refer to the dimensions of the profile measured parallel to the leg plane 20, 22, while the values height / outside (H) and height / inside (h) refer to the dimensions of the profile referred to parallel to the planes of the side walls 16, 18.
- the wall thickness d v relates to the thickness of the side walls 16, 18, the wall thickness d h to the thickness of the legs 20, 22.
- the deflection f y indicates the deflection of a 1 m long hollow profile clamped on one side in the plane parallel to the side walls 16, 18 , while f x represents the corresponding parameter when the profile is clamped rotated by 90 ° and the deflection in the plane is parallel to the legs 20, 22.
- Luran S 797SE acrylic acid-styrene-acrylonitrile (ASA)
- Luran S KR2858 G3 ASA copolymer from BASF AG with short-fiber (0.2 to 0.3 mm) glass fiber components
- PP EGF 70 polypropylene resin reinforced with continuous glass fibers
- FIGS. 7 a / b and 8 a / b show two preferred alternatives for the assembly of rectangular frames for insulating glass elements.
- a V-shaped cutout 120 is created in the area of the spacer profile 10 in which a corner is to be formed, the outer leg 22 being retained throughout. From a corner point 122 fixed on the leg 22, cut surfaces 124, 126 of the side walls 16, 18 run at a 90 ° angle to one another and each with an inclination of 45 ° to the surface of the leg 22 to the leg 20.
- the profile parts on the right and left of the corner point 122 are bent towards one another until the cut surfaces 124 and 126 come to lie on one another.
- the joint 128 formed in this way is joined by means of mirror, laser, ultrasound or high-frequency welding or by gluing to form a firm, tight and dimensionally accurate corner connection.
- leg 22 can optionally be heated locally to support the bending process. It has been shown that, in particular due to the smaller thickness of the leg 22 chosen according to the invention and the fiber reinforcement which may be present to a lesser extent, deformation to form the corner area without destroying the vapor barrier and any protective layers of the leg 22 which may be present are very favored.
- the leg 20 remains completely intact and the miter cut for producing the V-shaped recess 130 removes part of the leg 22.
- the two profile parts on the right and left of the corner point 132 become bent apart and a corner piece 138 is placed on the now aligned cutting surfaces 134, 136 of the side walls 16, 18 and connected with the technology already described above.
- the corner piece 138 preferably has two rectangular tubes which are adapted to the hollow profile of the spacer and can be inserted therein and serve to further stabilize the corner area. Since the inside leg is not interrupted, the rectangular frame parts are held together well.
- the corner piece is also designed as a hollow body and is provided with the same vapor barriers and coatings as the hollow profile of the spacer 10 itself, after the corner piece 138 has been welded or glued to the spacer profile 10, a corner which is just as vapor-tight as that in the first alternative is shown in FIG Case is.
- the prefabricated corner piece can already include a filling opening 144 for desiccant, which is tightly closed after the hollow profile has been filled.
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Laminated Bodies (AREA)
- Securing Of Glass Panes Or The Like (AREA)
- Joining Of Glass To Other Materials (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99908820A EP1056919A1 (de) | 1998-02-21 | 1999-01-23 | Abstandhalter |
JP2000532614A JP2002504639A (ja) | 1998-02-21 | 1999-01-23 | スペーサー |
CA002320090A CA2320090A1 (en) | 1998-02-21 | 1999-01-23 | Spacer |
US09/641,513 US6537629B1 (en) | 1998-02-21 | 2000-08-18 | Spacer |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19807454.9 | 1998-02-21 | ||
DE19807454A DE19807454A1 (de) | 1998-02-21 | 1998-02-21 | Abstandhalter |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/641,513 Continuation US6537629B1 (en) | 1998-02-21 | 2000-08-18 | Spacer |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999042693A1 true WO1999042693A1 (de) | 1999-08-26 |
Family
ID=7858580
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1999/000454 WO1999042693A1 (de) | 1998-02-21 | 1999-01-23 | Abstandhalter |
Country Status (6)
Country | Link |
---|---|
US (1) | US6537629B1 (de) |
EP (1) | EP1056919A1 (de) |
JP (1) | JP2002504639A (de) |
CA (1) | CA2320090A1 (de) |
DE (1) | DE19807454A1 (de) |
WO (1) | WO1999042693A1 (de) |
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1999
- 1999-01-23 WO PCT/EP1999/000454 patent/WO1999042693A1/de not_active Application Discontinuation
- 1999-01-23 CA CA002320090A patent/CA2320090A1/en not_active Abandoned
- 1999-01-23 EP EP99908820A patent/EP1056919A1/de not_active Withdrawn
- 1999-01-23 JP JP2000532614A patent/JP2002504639A/ja active Pending
-
2000
- 2000-08-18 US US09/641,513 patent/US6537629B1/en not_active Expired - Fee Related
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EP0127739A2 (de) * | 1983-06-06 | 1984-12-12 | Josef Gartner & Co. | Abstandshalter und Verfahren zu seiner Herstellung |
GB2162228A (en) * | 1984-07-25 | 1986-01-29 | Sanden Corp | Double-glazed window for a refrigerator |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1028082C2 (nl) * | 2005-01-21 | 2006-07-26 | Permasteelisa Internat B V | Inrichting en werkwijze voor het aan een gevelconstructie bevestigen van glazen ruiten. |
WO2006078165A3 (en) * | 2005-01-21 | 2006-10-12 | Permasteelisa Internat B V | Device and method for fixing glass windows to an outer wall construction |
EP2746518A1 (de) | 2012-12-19 | 2014-06-25 | Rolltech A/S | Zweiteiliger Abstandhalter mit überlappenden Oberflächen und Verfahren zu dessen Herstellung |
US10000963B2 (en) | 2015-01-26 | 2018-06-19 | Rolltech A/S | Two part spacer with overlapping surfaces |
WO2018185281A1 (en) | 2017-04-07 | 2018-10-11 | Rolltech A/S | A spacer profile with improved stiffness |
EP3556984A1 (de) | 2018-04-17 | 2019-10-23 | Rolltech A/S | Abstandshalter mit doppelseitigen oberflächen |
WO2019201809A1 (en) | 2018-04-17 | 2019-10-24 | Rolltech A/S | A spacer with double side surfaces |
Also Published As
Publication number | Publication date |
---|---|
CA2320090A1 (en) | 1999-08-26 |
DE19807454A1 (de) | 1999-08-26 |
US6537629B1 (en) | 2003-03-25 |
JP2002504639A (ja) | 2002-02-12 |
EP1056919A1 (de) | 2000-12-06 |
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