GB2291917A

GB2291917A - Sealing strip for between joinery and glazing

Info

Publication number: GB2291917A
Application number: GB9515541A
Authority: GB
Inventors: Charles Aubert; Roger Aubert
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-08-01
Filing date: 1995-07-28
Publication date: 1996-02-07
Anticipated expiration: 2015-07-28
Also published as: CH690923A5; GB9515541D0; DE29512052U1; GB2291917B; FR2723138B1; FR2723138A1; BE1008543A6

Abstract

The strip is of the type including a fastening toe or the like (2) designed to be fixed to the joinery work, and from which there extend a sealing lip (4) and a bearing lip (5), which are designed to be kept pressed against the glazing or the like. According to the invention, the bearing lip includes transverse cuts (8) distributed along the length of the strip, extending from its outer edge towards the fastening toe, each cut (8) being extended, on the toe side, by a cut (10) of rounded shape which subtends an angle of at least 90 DEG and the free end of the curve of which is directed towards the outer edge of the bearing lip. <IMAGE>

Description

SEALING STRIP OR BETWEEN JOINERY WORK AND GLAZING OR THE LIKE The subject of the present invention is a sealing strip for between joinery work and glazing or the like, especially between joinery work and a solid panel.

The strip in question is a rubber or synthetic strip including a fastening toe or the like designed to be fixed to the joinery work, from which there extend a sealing lip and a bearing lip which are designed to be kept pressed against the glazing or the like. Achieving sealing between joinery work and glazing generally requires the production of a sealing component of rectangular shape, insofar that the glazing is itself rectangular. It is therefore appropriate to achieve sealing along the straight parts and also in the corners.

A first solution consists in cutting a strip into several straight sections, each of a length corresponding to one of the sides where sealing is to be achieved.

However, this solution is not satisfactory insofar as there is a discontinuity at the corners, and this is all the more pronounced since, when fitting the sections of strip, these are stretched out slightly and shrink after resting for a few hours, and this leads to the creation of gaps.

Another solution consists in producing sealing frames from several sections which are joined together and vulcanized. This operation is lengthy and expensive since, apart from the vulcanization operation itself, a mould is required for joining the various sections of strip together.

A third solution consists in using a continuous strip which itself forms the corners. This solution is not entirely satisfactory insofar as the strip is under tension at the corners, something which leads to the formation of passages detracting from the sealing, and also as the material does not age so well in these regions, bearing in the mind the compression to which it is subjected.

To this end, the strip to which it relates, of the type including a fastening toe or the like designed to be fixed to the joinery work, and from which there extend a sealing lip and a bearing lip which are designed to be kept pressed against the glazing or the like, is characterized in that the bearing lip includes transverse cuts distributed along the length of the strip, extending from its outer edge towards the heel, each cut being extended, on the heel side, by a cut of rounded shape which subtends an angle of at least 900, and the free end of the curve of which is directed towards the outer edge of the bearing lip.When the strip has to fors a corner, this corner is formed at a cut, which facilitates this deformation avoiding excessive compressions of the material in this region, the rounded cut giving the strip deformability without any risk of it tearing.

According to first embodiment, the cut of rounded shape is a cut of circular shape and subtends an angle of 2700 or less.

The fact of having a non-emerging rounded cut makes it possible to avoid the formation of cut-out parts, also known as chips, which are always difficult to remove bearing in mind their small size. However, if it is desired for the rounded cut to be completely open, the circular cut is made over 360"C. In both cases, the diameter of the circular cut is at least equal to 2 mm.

According to one embodiment of this strip, the cut extending from the outer edge of the bearing lip as far as the rounded cut forms an angle other than 900 with this edge.

Advantageously the cut extending from the outer edge of the bearing lip has a curved shape with opposite curvature to that of the rounded cut, and with a radius of curvature greater than that of the latter.

This last solution is advantageous as it affords the strip a great deal of flexibility while avoiding any risk of it tearing.

According to another embodiment of this strip, the end of the rounded cut situated at its opposite end to the one connected to the cut emerging in the outer edge is extended by a cut itself emerging in the outer edge of the searing lip.

In any case, the invention will be clearly understood with the aid of the description which follows with reference to the appended diagrammatic drawing which, by way of non-limiting examples, represents several embodiments of this sealing strip: Figure 1 is a perspective view of a portion of strip forming a right angle; Figure 2 is a view of a cut in the strip of Figure 1; Figures 3 to 7 are five views similar to Figure 2 corresponding to various types of cut; Figure 8 is a view of the strip of Figure 7, forming an angle of 900; Figure 9 is a sectional view on IX-IX of Figure 1 of the strip of Figure 1, on an enlarged scale.

Figures 1 and 9 represent a first sealing strip including a fastening toe 2 designed to be fixed to joinery work 3, and from which there extend a sealing lip 4 and a bearing lip 5 which are designed to be kept pressed against the glazing 6 or the like, represented in dotted line in Figure 9, it being emphasized that the strip is, for its part, represented in its position in which it is not stressed in any way.

According to the essential feature of the invention, this strip comprises a certain number of transverse cuts 7 distributed along its length. Each transverse cut 7 comprises a first cut 8 extending from the outer edge 9 of the bearing lip 5, this cut 8 being extended by a second cut 10 of circular shape, subtending an angle of approximately 2700.

As shown in Figure 2, the first cut 8 is rounded and has a curvature which is the opposite to that of the circular cut 10. The diameter of the circular cut 10, a function of the dimensions of the strip and of the thickness of the material of which it is made, is at least equal to 2 =. In the embodiment represented in Figures 1, 2 and 9, the circular cut 10 is non-emerging, this solution being advantageous from a production point of view because it avoids having to remove the chips of material.

Figure 4 represents an alternative to the cut of Figure 2, in which the cut 10 extends over 3600, so that the circular cut frees a pellet leaving a circular opening 12.

In the embodiment represented in Figure 3, the first cut 18 is straight and perpendicular to the edge 9, and it is extended by a second cut 20 in the shape of a circular arc which subtends an angle of greater than 900.

Figure 5 represents an alternative embodiment to the cut of Figure 2, in which the non-emerging circular cut 10 is extended by a cut 13, symmetrical to the cut 8, also emerging in the edge 9. Taken together, the cuts 8, 10 and 13 form a tongue 14 which is taken out, leaving space, as shown in Figure 6, for an opening 15. The embodiment represented in Figure 7 is an alternative to that of Figure 6, in which the cuts emerging in the edge 9 are not rounded but straight.

Figure 8 shows the ability to deform of a strip including the cuts of Figure 7, with a view to forming a right angle.

As emerges from the foregoing, the invention affords a great improvement to the existing art by providing a sealing strip for between joinery and glazing which has a simple structure making it possible to form corners, without discontinuity, and at the same time preserving perfect sealing.

As goes without saying, the invention is not limited merely to the embodiments of the strip described hereinabove, or merely to the shapes of cut that these strips include, but in contrast encompasses all alternatives thereof. Thus especially the shape of the rounded cuts could be not circular, but elliptical for example, without in any way departing from the scope of the invention.

Claims

1. Sealing strip for between joinery work and glazing or the like, of the type including a fastening toe or the like (2) intended to be fixed to the joinery work (3), and from which strip there extend a sealing lip (4) and a bearing lip (5) which are designed to be kept pressed against the glazing (6) or the like, the bearing lip including transverse cuts (8, 18) distributed along the length of the strip, extending from its outer edge (9) towards the fastening toe, characterized in that each cut (8, 18) is extended, on the toe side, by a cut (10, 20) of rounded shape which subtends an angle of at least 900, and the free end of the curve of which is directed towards the outer edge (9) of the bearing lip.

2. Sealing strip according to Claim 1, characterized in that the cut (10, 20) of rounded shape is a cut of circular shape.

3. Sealing strip according to Claim 2, characterized in that the circular cut (10, 20) is non-emerging and subtends an angle of 2700 or less.

4. Sealing strip according to either one of Claims 1 and 2, characterized in that the circular cut (10, 20) extends over 3600.

5. Sealing strip according to any one of Claims 2 to 4, characterized in that the diameter of the circular cut (10, 20) is at least equal to 2 mm.

6. Sealing strip according to any one of Claims 1 to 5, characterized in that the cut (8) extending from the outer edge of the bearing lip as far as the rounded cut forms an angle other than 900 with this edge.

7. Sealing strip according to Claim 6, characterized in that the cut (8) extending from the outer edge of the bearing lip has a curved shape, with opposite curvature to that of the rounded cut, and with a radius of curvature greater than that of the latter.

8. Sealing strip according to any one of Claims 1 to 7, characterized in that the end of the rounded cut (10) situated at its opposite end to the one connected to the cut emerging in the outer edge is extended by a cut (13) itself emerging in the outer edge (9) of the bearing lip.

9. A sealing strip for between joinery work and glazing or the like substantially as herein described with reference to and as shown in any of Figures 1, 2 and 9 or any of Figures 3 to 8.