WO2009115256A1

WO2009115256A1 - End cap

Info

Publication number: WO2009115256A1
Application number: PCT/EP2009/001887
Authority: WO
Inventors: Norbert Fink; Stephan Becker
Original assignee: Rehau Ag + Co
Priority date: 2008-03-20
Filing date: 2009-03-16
Publication date: 2009-09-24
Also published as: EP2274493B1; EP2274493B2; EP2274493A1; DE202008003931U1

Abstract

The invention relates to an end cap for closing a hollow chamber of a profile strip of a window, a door, and the like, having mounting elements engaging in the hollow chamber, having an outer perimeter at least partially axially adjacent to the profile strip. The aim of the invention is to overcome the disadvantages of the known prior art, and to disclose an end cap that can be produced economically and at low cost, allowing standardized sealing and compensating for tolerances, and having sufficient mechanical strength and stability. The aim is achieved according to the invention in that the end cap comprises at least one functional element made at least partially of a soft elastic material.

Description

Int. Characters: 08.026 / 1 dr.schi-zsk

endcap

The invention relates to an end cap for closing a hollow chamber of a profile strip of a window, a door and the like according to the preamble of claim 1.

Such end caps are used in the prior art to close the hollow chambers of moldings of a window, a door and the like. These moldings are used in window construction, for example, in multi-leaf windows between which a blind post, a Stulpprofil, a transom profile and the like. Arranged. The windows, doors and the like generally have a rectangular cross-section, wherein the window or door-forming profile strips are connected to each other at their free ends cohesively. The inserted between the window, door and the like profile strips such as blind posts, a Stulpprofil, a transom profile and the like. Are open at their free ends, so that in the hollow chambers of these moldings dirt or liquids can penetrate.

In order to prevent this, so-called end caps are used, which have engaging in the hollow chambers of the profile strip holding elements and an axially adjacent to the profile strip outer circumference, so that the free ends of these moldings are sealed and visually appealing.

Such an end cap is described for example in DE 9102714 U1. This end cap for closing a hollow profile rod of windows, doors and the like with engaging in the rod clamping projections and with an axially adjoining the rod profile outer circumference should be characterized in that the end cap is divided axially into at least two separately producible sections that after their manufacture radially are firmly assembled.

This end cap is intended to eliminate visual defects when differently colored hollow profile bars are assembled to a window, a door and the like. _

Int. Characters: 08.026 / 1 dr.schi-zsk

A disadvantage of this end cap is seen that, for example, by the tolerances between the two separate sections both the sealing effect and the tolerance compensation between the various a window, a door and the like forming profile strips is considerably more difficult. Another disadvantage of the end cap is seen in the fact that no tolerance compensation between the windows, doors and the like forming profile strips can be achieved by the multi-part especially in an end cap of a metallic but also a thermoplastic material and in particular in these materials a standard-compliant seal in particular Area of the outer sealing plane of the windows, doors and the like is not possible.

This is where the invention, which has set itself the task of overcoming the disadvantages of the known prior art and to show an end cap, which is economical and inexpensive to produce, which allows sufficient mechanical strength and stability a standard-compliant seal and in addition a tolerance compensation.

The object of the invention is solved by the features of claim 1. Further advantageous embodiments are described in the subclaims.

It has been found that an end cap for closing a hollow chamber of a profiled strip of a window, a door and the like, with retaining elements engaging in the hollow chamber, with an outer periphery at least partially axially adjacent to the profiled strip, advantageously has at least one functional element which at least partially consists of one soft elastic material. This functional element is designed in such a way that the gap existing between the profiled strip, for example a cuff profile, for the frame or sash frame is sealed, and at the same time possible production-related tolerances can be compensated. Here, the soft elastic material of the functional element is selected from the group of thermoplastics, the thermosets, the silicones, the elastomers, rubber and the like, which allows a cost-effective production of the end cap.

The soft-elastic material of the functional element may advantageously be selected from the group of thermoplastic elastomers, thermoplastic copolyesters, styrene block copolymers, thermoplastic copolyamides, polyurethanes, plasticized polyvinyl chlorides and the like. - _

Int. Characters: 08.026 / 1 dr.schi-zsk

In this case, the functional element is, for example, materially connected to the end cap, which reduces the manufacturing costs and simultaneously increases the geometric diversity of these end caps.

However, it is also within the scope of the invention that the functional element is non-positively connected to the end cap, so that different color variants, for example, the end cap and the functional element can be combined. Furthermore, it is possible by this advantageous embodiment to replace already mounted end caps in windows or doors by the end cap according to the invention or to redevelop by the functional element.

Another advantage of the end cap according to the invention is seen in that the functional element at least partially consists of a soft elastic material. In particular, those materials which have a maximum hardness of Shore A 96 can be advantageously used.

However, it is also within the scope of the invention that the soft elastic material is selected from the group of foamed and / or foamable materials having a density of at most 0.5 g / cm ³ .

In a further advantageous embodiment of the end cap according to the invention that has

Functional element has a wall thickness of about 0.2 to 5 mm, preferably 0.5 to 1, 5 mm.

By this configuration end caps can be produced, which solve the known problem of tightness and tolerance compensation, especially in profile strips that are designed as Stulpprofile and the like.

In a likewise advantageous embodiment, the end cap according to the invention is characterized in that the functional element has at least one base and / or at least one sealing element and / or at least one tolerance compensation element. This makes it possible to provide in various complicated geometries of Stulpprofilen, frame profiles or sash profiles an end cap available, which has both in the critical areas both a sealing effect, as well as additionally causes a tolerance compensation between the individual profiles. ,,

Int. Characters: 08.026 / 1 dr.schi-zsk

In this case, in a further advantageous embodiment, the sealing element can be materially and / or non-positively connected to the base and / or to the end cap, which leaves a wide variety of manufacturing possibilities open, without restricting the functionality of the end cap according to the invention.

In a further advantageous embodiment, the tolerance compensation element is flexible relative to its longitudinal axis. By this advantageous geometry, the tolerance compensation element is able to absorb pressure forces occurring in the installed state in the window system, for example, by opening or closing a casement despite existing manufacturing tolerances, and thus seal the window system. In this case, the tolerance compensation element of the end cap according to the invention over its longitudinal axis due to the soft elastic materials flexibly compensate for the tolerance differences of the profile strips of a window system.

The tolerance compensation element is further in cross-section approximately U-shaped, C-shaped,

Z-shaped and the like is formed. The geometry of the tolerance compensation element can thus be adjusted according to the geometry of the dummy post, the Stulpprofils, the rung profile and the like so that all production-related tolerances are sealing compensated.

In accordance with the requirements of the window systems, the material of the tolerance compensation element in cross section may have a cellular and / or honeycomb structure, in particular when using foamed and / or foamable materials.

In a likewise advantageous embodiment of the end cap according to the invention, the tolerance compensation element has at least one recess, a hollow chamber and the like, which is designed so that in normal use of the end cap manufacturing tolerances tolerances of the frame or sash profiles are compensated sealingly without these sealing and tolerance-compensating effect over time due to mechanical stress or material changes leads to leaks in the windows, doors and the like.

The end cap according to the invention is also advantageously designed so that it has at least one opening, by the known per se fasteners are inserted, the sealing the end cap and the design of the profile strip, for example, a Stulpprofiles adapted, this sealing, fastened.

- A - Int. Characters: 08.026 / 1 dr.schi-zsk

The position of the openings can be chosen so that the sealing tolerance-compensating function of the end cap and in particular of the functional element is additionally supported by a certain bias.

The invention will now be described in more detail on a non-limiting this embodiment. Show it:

Figure 1 perspective view of an end cap according to the invention on a window system

Figure 2 perspective view of an end cap according to the invention

Figure 3 perspective view of the section of the end cap according to the invention

In Figure 1, a window system is shown in perspective, which has a frame 1, which is in operative connection with a sash 2. Between the casement 2 and the frame 1, a sealing element 21 is arranged. The window system has a further casement 3, which likewise has a sealing element 31. Between the sash 2 and the sash 3 a profiled strip 4 is arranged, which is formed in this embodiment as a cuff profile. At an open end of the profiled strip 4, an end cap 5 is arranged, which covers the hollow chamber of the profiled strip 4 and engaging in the hollow chamber, not shown here, holding elements 55, wherein the end cap 5 is formed so that it is connected to one of the Profileiste 4th axially adjoining outer circumference, which at least partially corresponds to the contour of the profiled strip 4.

For better illustration of the frame 1 opposite window frame, which is in operative connection with the sash 3, not shown. The end cap 5 arranged on the profiled strip 4 has a functional element 50 which is arranged on the seals 21, 31 of the casement frames 2, 3. In the gap 6 between the sash 2 and the sash 3, a positioning member 56 is arranged, which seals the free end of the sash 2. The functional element 50 of the end cap 5 thus connects the seals 21, 31 of the casement 2, 3, so that between the casement 2 and the casement 3 penetrating moisture or dirt can not pass through the sealing element 53 on the inside of the room.

A further sealing of the casement 2, 3 is realized by the, not shown here, vertical seals of the profiled strip 4. ,,, _

Int. Characters: 08.026 / 1 dr.schi-zsk

The end cap 5 is formed in this embodiment so that a rib 58 allows a direct connection between the casement 2, 3 to the effect that a arranged in the frame 1 seal 11 which rests on the casement 2, 3, the gap between the casement 2, 3rd sealingly bridged. To further improve the sealing effect and to create a so-called third sealing level, a rib 57 is arranged on the end cap 5, which is also arranged on the inner sides of the sash 2, 3 so that a seal 12 of the frame 1, the gap between the sash 2 and the sash 3 sealingly bridged.

FIG. 2 shows a perspective view of an end cap 5. The end cap 5 has on its underside holding elements 55, which are formed so that they engage in the hollow chamber of a profile strip, not shown here.

The contour of the end cap 5 is formed so that it is equipped with a, not shown, at least partially axially adjacent outer periphery of the profile strip, not shown. Thus, the end cap 5 can cover the free end and thus the hollow chamber of a profiled strip, not shown, completely sealingly.

In this embodiment, the end cap 5 has a functional element 50, which is made of a soft elastic thermoplastic elastomer. The functional element 50 has an approximately prismatic base 51 on which a sealing element 53 and a tolerance compensation element 52 are arranged in one piece.

The tolerance compensation element 52 in this example has an approximately U-shaped recess 520 formed over its entire length and is non-positively connected to the positioning element 56. In this embodiment, the base 51 is approximately rectangular and, for example, adhesively bonded to the end cap 5 by means of an adhesive.

It is also within the scope of the invention, however, that the base 51 can be fixed to the end cap 5 via known hooks, latching or plug-in connections. The end cap 5 according to the invention also has a positioning element 56, which in this exemplary embodiment is arranged approximately at right angles to the functional element 50 and has an angled section approximately parallel to the sealing element 53 of the functional element 50, which in the installed state (see FIG free end of the sash 2 sealing, this supporting, engages behind.

The end cap 5 according to the invention has in this embodiment, an opening 54 through which the end cap 5 is mechanically connected to the profile strip, not shown. The opening 54 of the end cap 5 lies between the ribs 57, 58 projecting approximately at right angles from the top side of the end cap 5. ₁

Int. Characters: 08.026 / 1 dr.schi-zsk

The ribs 57, 58 of the end cap 5 are formed in this embodiment so that their opposite free ends have a bevel or a radius, so that in the assembled state (see Figure 1), the seals 11, 12 of the frame 1 sealing can invest on the rib 57, 58. The functional element 50 is made in this embodiment in one piece with the end cap 5, for example, in the known two-component injection molding.

However, it is also within the scope of the invention that the end cap 5 is formed in several parts, so that it is non-positively divided, for example on the rib 57 and / or on the rib 58, and thus the end cap 5 and for forend profiles of different geometries by separating individual elements is usable.

FIG. 3 shows a detail of a perspective illustration of the end cap 5. On the positioning element 56 of the end cap 5, the functional element 50 is arranged, which consists of a base 51, a sealing element 53 and a tolerance compensation element 52.

The base 51 is non-positively connected to the visible underneath the top of the end cap 5, by a foot, not shown here, which is inserted into the also not shown hollow chamber of the end cap 5. The sealing element 53 has in this embodiment, a wall thickness of 0.6 mm and is formed of a soft elastic material having a hardness Shore A 73. The soft-elastic material was selected from the group of plasticized polyvinyl chlorides.

The tolerance compensation element 52 is integrally connected to the base 51 of the functional element 50 and to the positioning element 56.

In this embodiment, the end cap 5 was made of a thermoplastically processable material, preferably made of acrylonitrile-styrene-acrylic ester copolymer (ASA), to which in a separate operation, the functional element 50 preferably made of soft polyvinyl chloride on the base 51 frictionally added and on the Tolerance compensation element 52 is materially fixed to the positioning element 56 of the end cap 5. The tolerance compensation element 52 has in this embodiment, an approximately V-shaped recess 520, which extends over the entire longitudinal axis of the tolerance compensation element 52. ι _

Int. Characters: 08.026 / 1 dr.schi-zsk

With this design, the functional element 50, which is sealingly connected via the sealing element 53 with the seals 21, 31 of the sash 2, 3, not shown here, at the same time tolerance compensating for the frame 1 and the profile strip 4, as over the recess 520 with constant sealing effect a certain deformation or flexibility of the functional element 50 is possible.

However, it is also within the scope of the invention that, for example, the sealing element 53 of the functional element 50 has a different geometry which, when used in windows, doors and the like in addition to the sealing effect also causes a tolerance compensation.

In this case, the functional element 50 can furthermore be designed so that the base 51 and / or the sealing element 53 has additional ribs, nubs, lamellae and the like, which reinforce the effect of the end cap 5 and of the functional element 50. In this case, both the base 51 and the sealing element 53 as well as the tolerance compensation element 52 can be correspondingly flexibly adapted to the requirements for tightness and tolerance compensation in the case of windows, doors and the like, as a result of the choice of materials.

It is also within the scope of the invention that the functional element 50 is designed such that on the sealing element 53 connecting the base 51 and the tolerance compensation element 52 a further sealing element projecting away from the sealing element 53 is arranged, which corresponds to the geometry of the sealing element not shown here Seals 21, 31 of the sash 2, 3 is modeled. In this case, the sealing element 53 has at its base 51 opposite the free end over its entire width facing, arranged approximately at an acute angle further sealing element. It is also within the scope of the invention that the functional element 50 is formed so that the sealing element 53, which is integrally connected to the base 51, is arranged directly on the positioning element 56.

In this advantageous embodiment of the functional element 50, it is, for example, required that the sealing element 53 has at its, the base 51 opposite free end, an additional sealing element, which is the geometry of the seals 21, 31 of the sash frame 2, 3, not shown here ,

Claims

Π / ΛU MO - _Int. Sign: 08.026 / 1 dr.schi-zskPatentansprüche

1. end cap (5) for closing a hollow chamber of a profiled strip (4) of a window, a door and the like, with retaining elements (55) engaging in the hollow chamber, with an outer circumference at least partially axially adjoining the profiled strip (4), characterized the end cap (5) has at least one functional element (50), which at least partially consists of a soft-elastic

Material exists.

2. End cap according to claim 1, characterized in that the soft elastic material of the functional element (50) is selected from the group of thermoplastics, thermosets, silicones, elastomers, rubber and the like.

3. End cap according to claim 1 and 2, characterized in that the soft elastic material of the functional element (50) is selected from the group of thermoplastic elastomers, thermoplastic copolyesters, styrene block copolymers, thermoplastic copolyamides, polyurethanes, plasticized polyvinyl chloride and the like ,

4. End cap according to one of the preceding claims, characterized in that the functional element (50) is integrally connected to the end cap (5).

5. End cap according to one of the preceding claims, characterized in that the functional element (50) is non-positively connected to the end cap (5).

6. End cap according to one of the preceding claims, characterized in that the functional element (50) has a wall thickness of about 0.2 to 5 mm, preferably

0.5 to 1, 5 mm.

7. End cap according to one of the preceding claims, characterized in that the functional element (50) has a base (51) and / or at least one sealing element (53) and / or at least one tolerance compensation element (52). r. ,

Int. Characters: 08.026 / 1 dr.schi-zsk

8. End cap according to claim 7, characterized in that the sealing element (53) and / or the tolerance compensation element (52) is integrally and / or non-positively connected to the base (51) and / or the end cap (5).

9. End cap according to one of the preceding claims, characterized in that the tolerance compensation element (52) is flexible with respect to its longitudinal axis.

10. End cap according to one of the preceding claims, characterized in that the tolerance compensation element (52) is formed in cross-section approximately U-shaped, C-shaped, Z-shaped and the like.

11. End cap according to one of the preceding claims, characterized in that the tolerance compensation element (52) has a cellular and / or honeycomb-shaped structure in cross section.

12. End cap according to one of the preceding claims, characterized in that the tolerance compensation element (52) has at least one recess (520), a hollow chamber and the like.