NL1009409C2 - Window construction. - Google Patents

Description

Title: Window construction

The present invention relates to a window construction, provided with an outer frame which can be mounted pivotally about a substantially vertical axis in a frame by means of hinges, and a number of inner frames which can be moved to and fro inside the outer frame.

Such a window construction, however, in which only two inner frames are arranged to reciprocate within the outer frame, is known from GB-A-10 2190414, in particular from Fig. 15 and p. 2, lines 118-128. Problems arise in the implementation of this window construction because, in contrast to a fixed frame pivotable about a vertical axis with a window arranged therein, there is no coupling between the top corner on the hinge side facing away from the hinge side. side of the outer frame and the bottom corner is present on the hinge side, so that, especially when the window construction is relatively large and therefore heavy, the window construction tends to hang slightly in the sense that the side of the window construction remote from the hinge side is slightly down will lower so that the window construction deforms slightly from the pure rectangular shape into a parallelogram shape, with the result that the window construction becomes clamped and no longer closes properly. Although the above-mentioned corners of the window construction could be reinforced, in practice, given the aesthetic requirements placed on window constructions, it appears that this solution is not acceptable for very large window constructions, such as these occur in many old buildings. It should be realized here that, precisely because of the aesthetic requirements, a lot of use is made of aluminum frames, which simply deform easily when the coupling between the above-mentioned corners in a window construction, as described in the preamble, has been omitted. With smaller 1009409 ^ 2 window constructions, there is therefore no objection to using aluminum

Such a problem arises both for window constructions for window frames or secondary windows in which the inner frames in the outer frame can be slid up and down, as well as in window constructions for, for example, large conservatory doors in which the inner frames can be shifted from the left and right and vice versa in the outer frame. .

The invention aims at least substantially to solve the above-mentioned problems and to provide a window construction which, even when it is of relatively large and heavy design, can be hinged in a suitable manner without deformation, while at the same time meeting the requirements of aesthetics unabated continues to be satisfied.

According to the invention, the window construction as described in the preamble for this purpose is characterized in that the outer frame is made of steel or a material with which an approximately equal stiffness in the window construction can be obtained and that the outer frame is formed with a protrusion which depends on the dimensions and weight of the window construction.

By "forward" is meant here the degree to which the outer frame is pre-deformed, ie a parallelogram structure is given such that under the weight of the window the outer frame again takes on a rectangular shape; the position is expressed by the degree to which the top corner of the outer frame located away from the hinge side is higher than the top corner thereof situated on the hinge side. In a simple embodiment, the position (h) is determined by the relation: h = fx B, where B is the width of the window construction and f is a factor of the order of 0.01 to 0.025, depending on the height of the window construction.

For windows up to about 2.5 to 3 m, this factor will be about 1009409 ^ 3 0.01; for windows on the order of 3 m or slightly above about 0.015. Even higher window constructions may even require values of 0.02 or possibly 0.025 for the factor f.

5 In view of the stiffness of the window construction as well as the sliding frames of the inner frames, it is preferable that the outer frame is formed by a rectangular U-profile, W-profile or a similar profile, whereby over or 10 between the legs of the profile an inner frame is slidable. In a concrete embodiment, an inner frame is slidable over or between the legs of the profile by means of running wheels arranged therein. The inner frames are hereby easily slid in succession along or between respective legs of the profile. Known balance springs are arranged between the legs of the profile to support each of the inner frames.

In order to give the outer frame the required aesthetic appearance, it can be provided with a surface layer, for instance of plastic. The inner frames can of course also be manufactured from the same material.

The invention will now be explained in more detail with reference to the appended drawing. Herein shows:

Fig. 1 schematically shows a window construction according to the invention, provided with two inner frames;

FIG. 2 is a horizontal section on line A-A

in fig. 1;

Fig. 3 is a horizontal section taken on the line B-B in FIG. 1;

Fig. 4 is a vertical sectional view taken on the line C-C in FIG. 1; 1 0 0 9 ^ 09 «4

Fig. 5 schematically a window construction, provided with three inner frames;

Fig. 6 schematically a window construction, provided with four inner frames; while in FIG. 7 the application of a W-profile for the outer frame is shown.

The window construction schematically shown in Fig. 1 comprises an outer frame 1 which can be mounted pivotally about a substantially vertical axis in a frame 3 by means of hinges 2. Within the outer frame 1, two inner frames 4 and 5 are movable up and down. Window panes 6 and 7 are included in these inner frames. The inner frames together with the window panes form window frames. Both windows can be slid up and down along the entire height, so that any desired position of the windows can be obtained for a desired air circulation or for cleaning the windows. In Fig. 1 the inner frame 5 is pushed upwards relative to the inner frame 4, so that an air passage space is released at the bottom.

The outer frame 1 is formed by a steel U-profile 8 which, in its manufacture, is slightly offset from the rectangular shape, in the form of a parallelogram, in the sense that of the vertices A, B, C and D the corner point B is slightly higher than the corner point A and the corner point C is just as much higher than the corner point D. The distance h over which the corner points B 30 and C in the manufacture of the outer frame 1 are higher than the respective corner points A and D is selected such that, when the entire window construction is suspended in the hinges 2, the outer frame 1 deforms under its weight to such an extent that it assumes a rectangular shape so precise that clamping of the window construction in the frame is as good as possible 10094097. The distance h will therefore depend on the dimensions and weight of the window construction. In practice it has been found that a distance h satisfying the relationship: h = fx B, where B is the width of the window construction and f is a factor of the order of 0.01 to 0.025, depending on the height of the window construction. For windows up to about 2.5 to 3 m, this factor will be about 0.01; for windows on the order of 3 m or slightly above about 0.015. With even higher window constructions, values of 0.02 or possibly 0.025 may even be necessary for the factor f.

Certainly with large windows it will often be necessary that the outer frame 1 is pivotable with respect to a steel strip that can be fixed in the frame. The hinges can then be welded onto this steel strip. In the present embodiment, such a steel strip 9 is fixed in the frame 3, wherein a bent sealing plate 10 is arranged between this strip 9 and the frame 3, which connects to the U-profile 8 with a sealing strip 11 when it is in the closed position. Such a sealing plate with sealing strip is also present on the side of the window construction remote from the hinges 2, as well as on the top and bottom thereof. In addition, between the sealing plate 10 and the bottom edge of the U-profile 8, there is also a ramp block 12 fixed together with the sealing plate in the frame, which co-acts with a ramp edge 13 fixed on the bottom 30 of the U-profile 8.

Each of the legs of the all-round U-profile 8 defines a plane in which the respective inner frames 4 and 5 are slidable. These inner frames have an H-shaped profile. On the inward-facing side, the 35 inner frames 4 and 5 enclose the window panes 6 and 7 by means of all-round sealing strips 14. On the outward-facing side i π: J 9 ^ 09 * 6 they enclose a space in which (not in the figures shown) are running wheels which rest on the edges of the legs of the U-profile 8. With the aid of these running wheels an inner frame is slidable over opposite edges of a respective leg of the U-profile. The upright edges of these legs are provided for this purpose with a sliding layer 15. The inner frames are further provided with sealing elements 16 which move up and down the inner frames moving along this sliding layer 10 and in their extreme position directly against the upper and lower legs of rest the U-profile 8.

The inner frames are furthermore connected by means of plate pieces 17 to balance springs 18 arranged in the height-extending legs of the U-profile 8. The 15 balance springs are of the known type and are adjusted to the weight of the load to be carried, namely the relevant inner frames with window panes.

When the inner frames are in their extreme position, the top edge 19 of the bottom inner frame 20 engages in the bottom edge 20 of the upper inner frame, while further sealing elements 21 of the same type as the sealing elements 16 are present around the space between the two inner frames. in this position properly.

Both inner frames are further provided with engaging means 22 and 23 for moving the respective inner frames up and down. The gripping means 22 of the upper inner frame are provided with an eye for engaging this inner frame with the aid of an operating stick. The engaging means 23 of the lower inner frame are further provided with locking means 24 which can cooperate with a locking plate 25 fixed at the bottom on the lower inner frame.

The outer frame here is made of steel.

However, other materials can also be used with which an approximately equal stiffness can be obtained in the frame construction, in particular in that of the outer frame 1. From an aesthetic point of view it is also possible to provide the outer frame 1 with a surface layer, for instance of plastic. This is particularly attractive when the inner frames are also made of this material.

The invention is by no means limited to the exemplary embodiment described here with reference to the accompanying drawing, but includes all kinds of modifications to it, of course insofar as these fall within the scope of protection of the following claims. Thus, the invention is not limited to an outer frame with only two inner frames slidable therein. It is possible to fit several inner frames here. Fig. 5 shows an outer frame 1 in which three inner frames 26-28 are slidably arranged, while in FIG. 6 an outer frame with even four inner frames 29-32 is shown. The invention can furthermore also be applied to bell windows, these are windows with two wings which are hinged on opposite sides in a frame and which are closed in the middle by a so-called bell needle; Likewise, application is possible with double doors, in particular double conservatory doors. Furthermore, the invention is not limited to the use of U-profiles; W-profiles or other profiles, in which an inner frame is slidable over or between the legs of the same, are possible. For example, fig. 7 shows a side cross-section of a naturally all-round W-profile 33 which can be used instead of a U-30 profile. The inner frames 4 and 5 are here movable between the legs of the W-profile. Furthermore, instead of the sealing plate 10 in Figs. 2 and 3, a sealing profile 34 can be placed. This sealing profile may be necessary if a relatively heavy window construction is to be placed in a relatively weak frame. It should also be noted that, apart from the outer frame, the other *? -I -J $ i 8 parts can be made of any material, including steel, aluminum, plastics, etc.

1ÜÜ9409 '

Claims (6)

1. Frame construction, comprising an outer frame which can be mounted pivotally about a substantially vertical axis in a frame by means of hinges, and a number of inner frames which are arranged to be reciprocally displaceable within the outer frame, characterized in that the outer frame is made of steel or a material with which an approximately equal stiffness in the window construction can be obtained and that the outer frame is formed with a position which depends on the dimensions and the weight of the window construction. Window construction according to claim 1, characterized in that the position (h) is determined by the relationship: h = fx B, where B is the width of the window construction and f is a factor of the order of 0.01 to 0.025, depending on the height of the window construction. Window construction according to claim 1 or 2, characterized in that the outer frame is formed by a rectangular U-profile, W-profile or a similar profile, wherein an inner frame is slidable over or between the legs of the profile 20. Window construction according to claim 3, characterized in that an inner frame is slidable over or between the legs of the profile by means of running wheels arranged therein. Window construction according to claim 3 or 4, characterized in that balance springs are arranged between the legs of the U-profile to support each of the inner frames. Window construction according to one of the preceding claims, characterized in that the outer frame is provided with a surface layer, for instance of plastic. 1000409