Reinforcement profile fixing

Abstract

A reinforcement profile (2) for a plastic window profile (1), wherein the plastic window profile (1) has at least one reinforcement chamber (4), is suitable for receiving the reinforcement profile (2). At least one compressible sealing profile (3) is arranged on at least one surface of the reinforcement profile (2).

Description

[0001] The invention relates to a profile system for the manufacture of windows or doors based on plastic profiles with a reinforcing profile, as well as windows and doors manufactured from such a profile system.

[0002] Hollow chamber profiles for the manufacture of windows and doors are extensively extruded from PVC molding compounds. To meet the static requirements of the window elements, these are generally reinforced with steel profiles. State of the art

[0003] It is common practice to reinforce hollow chamber profiles made of PVC molding compounds with reinforcing profiles. These reinforcing profiles are usually made of steel. However, reinforcing profiles made of glass fiber reinforced plastics and so-called thermally broken steel profiles are also known for this purpose.

[0004] However, due to manufacturing tolerances, it is not always guaranteed that the reinforcing profiles will lie completely flush against the inner contour of the reinforcement chamber. If the hollow chamber profile deforms due to heat or force, the PVC profile will warp before the reinforcing profiles are subjected to bending stress and thus cannot exert their reinforcing effect. To counteract this, the hollow chamber profiles and the reinforcing profiles are firmly connected to each other, preferably by screws.

[0005] For this purpose, the reinforcing profiles are inserted into a so-called reinforcing chamber of the hollow profiles – in particular the frame profiles for the frame and the sash profiles for the sash – before the cut and mitered PVC profiles are welded together, and screwed to the hollow chamber profile with a screw that penetrates the outer contour of the hollow chamber profile. This is usually done by the window manufacturer.

[0006] A connection between the hollow chamber profiles and the reinforcement profiles without screwing is known from WO98 / 21435.

[0007] The invention is based on the objective of creating a different reinforcement profile for a plastic window profile with at least one reinforcement chamber, which can be connected to a corresponding plastic window profile without screwing and without displacement.

[0008] The problem is solved by a reinforcement profile with the features of independent claim 1 and by the application of a method with the features of claim 8.

[0009] On a reinforcement profile for a plastic window profile, which has at least one reinforcement chamber, wherein the reinforcement chamber is suitable for receiving the reinforcement profile, at least one compressible sealing profile is arranged on at least one surface of the reinforcement profile.

[0010] The compressible sealing profile serves as a force-fit connection between the reinforcement profile and the plastic window profile, so that without additional fasteners such as screws, there is no displacement between the reinforcement profile and the plastic window profile during normal handling.

[0011] To ensure that the sealing profile is always positioned correctly and cannot be lost, it is, in a preferred embodiment, firmly connected to the reinforcement profile, namely by extrusion. Advantageous embodiments are protected by the features of the dependent claims.

[0012] If the compressible sealing profile is a tubular sealing profile, the seal is under tension as soon as it is compressed. Since the sealing profile then tries to return to its original shape, it exerts pressure on the devices, whereby static friction opposes this urge to move.

[0013] If the cross-section of the reinforcement chamber in the plastic window profile is slightly larger in its direction of extension than the cross-section of the reinforcement profile in its direction of extension, the reinforcement profile can be fitted into the recess with some play. In the case of an extruded profile, the direction of extension refers to the extrusion direction. Generally, in the case of a window profile, the direction of extension refers to the direction in which the longest edge of the profile runs.

[0014] The sealing profile should have a height h which, in its uncompressed state, is greater than the clearance between the plastic window profile and the receiving reinforcement profile at the point where the sealing profile is positioned. This ensures that the sealing profile presses the reinforcement profile against the receiving plastic window profile.

[0015] The tubular sealing profile can be closed at one end. Preferably, the sealing profile is hot-formed at this point.

[0016] The cross-section of the sealing profile can be essentially rectangular in its longitudinal direction. If one side wall has a lesser thickness than the opposite side wall, the advantage is that the sealing profile buckles in a defined manner under load. Three sides arranged essentially at right angles to each other are sufficient to form a rectangle, since the fourth side can be taken over by the reinforcing profile to which the sealing profile is attached.

[0017] The same applies if the cross-section of the sealing profile essentially has the shape of a bellows in the direction of extension.

[0018] In the inventive method for mounting a reinforcement profile with a compressible sealing profile with a plastic window profile, the sealing profile connected to the reinforcement profile is first compressed, then the reinforcement profile with the sealing profile is inserted into the reinforcement chamber of the plastic window profile and finally the sealing profile is relieved of the compressing forces.

[0019] Optionally, the sealing profile can be compressed by creating a vacuum inside the tubular profile. The compression forces can then be relieved by increasing the pressure inside the tubular profile; preferably, the interior of the tubular profile is pressurized to ambient pressure. This initially compresses the sealing profile, allowing the reinforcement profile, along with the compressed sealing profile, to be inserted into the reinforcement chamber of the plastic window profile. When the pressure inside the sealing profile is increased, it presses firmly against the inner wall of the reinforcement chamber, creating a secure, non-slip connection.

[0020] The method is particularly effective when the sealing profile is closed at one end, while a device for generating a vacuum is connected to the other end of the sealing profile.

[0021] Alternatively, the sealing profile can be compressed mechanically, preferably using a band. For this purpose, a thin flat band can be pulled over the sealing profile in its direction of extension. Then the reinforcing profile is inserted, and finally the flat band is pulled out.

[0022] The invention will now be explained using the figures. These show: Figure 1 a plastic window profile with a reinforcement chamber, Figure 2 a reinforcement profile according to the invention in a reinforcement chamber of a plastic window profile in the assembled final state, Figure 3 a reinforcement profile according to the invention with a sealing profile in a reinforcement chamber of a plastic window profile during assembly in profile section, Figure 4 a reinforcement profile according to the invention with a sealing profile and Figure 5a reinforcement profile according to the invention with a sealing profile in a reinforcement chamber of a plastic window profile during assembly in longitudinal section.

[0023] Figure 1 Figure 1 shows a plastic window profile 1 with a reinforcement chamber 4 for receiving a reinforcement profile. The embodiment shown in the figure is a PVC extrusion profile of a frame with additional chambers. The invention is not limited to this. It can also be used in sash frames or other hollow chamber profiles. Furthermore, the invention is not limited to PVC extrusion profiles.

[0024] In Figure 2The same plastic window profile 1 is shown with a reinforcement profile 2 according to the invention in the reinforcement chamber 4. A compressible sealing profile 3 is arranged on the upper surface of the reinforcement profile 2. The compressible sealing profile 3 is an extruded tubular sealing profile 3 which bridges the space between the reinforcement profile 2 and the plastic window profile 1 in the reinforcement chamber 4 and thus presses the reinforcement profile 2 against the plastic window profile 1.

[0025] The reinforcement profile 2 is preferably made of glass fiber reinforced plastic so that it can be extruded. The co-extruded sealing profile 3 can be co-extruded directly with the reinforcement profile 2 or subsequently post-co-extruded.

[0026] The cross-section of the reinforcement chamber 4 in the plastic window profile 1 is slightly larger in its longitudinal direction than the cross-section of the reinforcement profile 2 in its longitudinal direction, so that the reinforcement profile 2 can be accommodated with some play in the recess of the reinforcement chamber 4. This is necessary to insert the reinforcement profile 2 into the plastic window profile 1.

[0027] The reinforcement profile 2 with extruded tubular sealing profile 3 is insulated in Figure 4 shown. The cross-section of the sealing profile 3 is essentially rectangular in the direction of extension, with the left side wall 31 having a lesser thickness than the opposite right side wall 32.

[0028] However, it would also be possible that the cross-section of the sealing profile 3 has a different shape, such as that of a bellows or a rhombus.

[0029] The sealing profile 3 has a height h which, in its uncompressed state, is greater than the clearance between the plastic window profile 1 and the receiving reinforcement profile 2 at the point where the sealing profile 3 is positioned. As a result, the sealing profile 3 remains in a compressed state with a height less than its unloaded height h when installed, and exerts a compressive force on the connection between the plastic window profile 1 and the receiving reinforcement profile 2.

[0030] In order to apply the method according to the invention, it is advantageous if one end of the tubular sealing profile 3 is closed before the reinforcement profile 2 is inserted into the plastic window profile 1. This can be done by hot forming. Figure 5 A closure of this type (5) can be seen on the right side.

[0031] To insert the reinforcement profile 2 into the plastic window profile 1, the sealing profile 3 is first compressed by inserting a lance 6 into the tubular sealing profile 3. The lance 6 is connected to a vacuum pump 7. The vacuum pump 7 extracts the air from the interior of the tubular sealing profile 3, creating a negative pressure relative to the surroundings and causing the sealing profile 3 to contract. Because the sealing profile 3 is sealed on the side facing away from the lance 6, no air can flow into the sealing profile 3. Since the left side wall 31 of the sealing profile 3 is thinner than the opposite right side wall 32, the sealing profile folds inwards on the left side and conforms to the reinforcement profile 2. The reinforcement profile 2, along with the compressed sealing profile 3, can now be inserted into the reinforcement chamber 4 of the plastic window profile 1.This is in the . Figure 3 and 5 As shown. A gap remains between the compressed sealing profile 3 and the plastic window profile 1, allowing the reinforcement profile 2 to be inserted without much effort. Ideally, the plastic window profile 1 and the reinforcement profile 2 are the same length, so that the reinforcement profile 2 is inserted until, as shown in Figure 5 shown, flush with the plastic window profile 1 on the right side.

[0032] The lance 4 is then withdrawn from the sealing profile 3. Air now flows into the sealing profile 3, which attempts to expand vertically back to its original shape. However, since the sealing profile 3 has an uncompressed height h that is greater than the gap between the reinforcement profile 2 and the plastic window profile 1, the compressed sealing profile 3 strikes the reinforcement chamber 4 and thus presses the reinforcement profile 2 against the plastic window profile 1. This creates a positive and force-fit connection between the reinforcement profile 2 and the plastic window profile 1, preventing any further movement except under extremely high force. Displacement under gravity or other typical conditions—for example, during handling of the profiles in a manufacturing center—is therefore impossible.

[0033] The present invention allows a reinforcement profile to be assembled in a frame profile, saving the window manufacturer preparation time and labor.

[0034] The invention is not limited to the exemplary embodiment. In particular, it is not limited to frames, but can also be used for sash frames in both windows and doors. Furthermore, one profile can accommodate several reinforcing profiles. One or more sealing profiles 3 can be arranged on a reinforcing profile 2. Reference symbol list

[0035] 1 Plastic window profile 2 Reinforcement profile 3 Sealing profile 31 Left side wall 32 Right side wall 4 Reinforcement chamber 5 Closure 6 Lance 7 Vacuum pump

Claims

1. Reinforcement profile (2) for a plastic window profile (1), wherein the plastic window profile (1) has at least one reinforcement chamber (4) which is suitable for receiving the reinforcement profile (2), characterized in that at least one compressible sealing profile (3) is arranged on at least one surface of the reinforcement profile (2), wherein the sealing profile (3) is firmly connected to the reinforcement profile (2), namely extruded on.

2. Reinforcement profile (2) according to Claim 1, characterized in that the compressible sealing profile (3) is a tubular sealing profile (3).

3. Reinforcement profile (2) according to any one of Claims 1 or 2, characterized in that the cross section of the reinforcement chamber (4) in the plastic window profile (1) is slightly larger in the direction of extension than the cross section of the reinforcement profile (2) in the direction of extension, so that the reinforcement profile (2) can be received with play in the recess.

4. Reinforcement profile (2) according to Claim 3, characterized in that the sealing profile (3) has a height (h) which in the uncompressed state is greater than the play which exists between the plastic window profile (1) and the received reinforcement profile (2) at the location where the sealing profile (3) is arranged.

5. Reinforcement profile (2) according to any one of Claims 3 or 4, characterized in that the tubular sealing profile (3) is closed at one end, wherein the sealing profile (3) is preferably hot formed at this point for the purpose of closing.

6. Reinforcement profile (2) according to any one of Claims 1 to 5, characterized in that the cross section of the sealing profile (3) is substantially rectangular in the direction of extension, wherein preferably one side wall (31) has a lesser thickness than the opposite side wall (32).

7. Reinforcement profile (2) according to any one of Claims 1 to 6, characterized in that the cross section of the sealing profile (3) has essentially the shape of bellows in the direction of extension.

8. Method for assembling a reinforcement profile (2) with a compressible sealing profile (3) according to any one of Claims 1 to 7 with a plastic window profile (1), characterized in that the sealing profile (3) connected to the reinforcement profile (2) is first compressed, then the reinforcement profile (2) with the sealing profile (3) is inserted into the reinforcement chamber (4) of the plastic window profile (1) and thereafter the sealing profile (3) is relieved of the compressive forces.

9. Method for assembling a reinforcement profile (2) with a plastic window profile (1) according to Claim 8, wherein the compressible sealing profile (3) is a tubular sealing profile (3), characterized in that the sealing profile (3) is compressed by generating a vacuum inside the tubular profile (3) and the sealing profile (3) is relieved of the compressive forces by increasing the pressure inside the tubular profile (3), preferably by applying ambient pressure.

10. Method for assembling a reinforcement profile (2) with a plastic window profile (1) according to Claim 9, characterized in that the sealing profile (3) is closed at one end, while a device for generating a vacuum is connected at the other end of the sealing profile (3).

11. Method for assembling a reinforcement profile (2) with a plastic window profile (1) according to Claim 8, wherein the compressible sealing profile (3) is a tubular sealing profile (3), characterized in that the sealing profile (3) is compressed mechanically, preferably by means of a band.

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