DE2345472A1 - Swivel window fitting with brake unit - has braking surfaces on hemispheres, surrounding the pivot - Google Patents

Abstract

The fitting has parts secured on either side of the window frame, which together with the fitting parts on the moveable part form a horizontal swivel axis of the window, with the centre of gravity of the window being located outside this axis. One part of each pair of fittings has a braking surface engaging on the counter surface of the other part. The braking surfaces are positioned on hemispherical sections, which are pressed against the external surface of the pivot concerned, via screws. The screws extend in a direction at right angles to the swivel axis of the window.

Description

PATENT LAWYERS

Dip! - lng. P. WiRTH Dr. V. SCHMIED-KOWARZiK Dlpl.-lng. G. DANNENBERG Dr. P. WEINHOLD Dr. D. GUDEL

28U34 6 FRANKFURT AU MAIN

GR. ESCHENHEIMER STRAS!

7.9.1973 - Gu - kg

287014 GR. ESCHENHEIMER STRASSE 39

i. Jakob Escher
6; 575 Oberstädten / Ts. Industriestr. 2

Hardware for a pivoting window

The invention relates to a fitting for a pivoting window with fitting parts attached to both sides of the window frame, which, together with the fittings attached to the window frame, form a horizontal pivot axis of the window, the center of gravity of the window extending outside this pivot axis and on each of the covering parts each pair of fittings is provided with a braking surface that works together with a counter surface of the other fitting part, and wherein the pressing force of the two abutting surfaces can be adjusted via screws, and with the Pivot axis forming pivot pin.

With pivoting windows of this type, that is, those with their own weight of the wing, an often considerable torque is formed on the pivot axis, must be taken care of in a suitable manner be that this torque is intercepted in order to avoid hazards when operating the window. With a well-known Such fitting is done by the fact that in each case one

509812/0142

SAD ORIGINAL

of the fitting parts of each fitting part pair a braking surface is provided, which runs in a plane perpendicular to the window plane. This is attached to it using suitable screws adjacent mating surface of the other fitting part is pressed together, so that the braking force of this braking device is adjustable.

In the known fitting described, however, it is disadvantageous that this fitting consists of a large number of parts that must be provided in order to build the fitting so that an adjustment of the braking force is possible for braking surfaces that run in planes perpendicular to the window plane. Besides that these braking surfaces - depending on the weight of the window sash - must be relatively large in order to absorb the necessary braking forces to be able to.

The invention avoids these disadvantages. It is based on the task of a fitting for a pivot window with a braking device to be provided, the manufacture and assembly of which is simple, which requires little space and which is easily adjustable, has high braking power.

To solve this problem, the aforementioned fitting according to the invention is characterized in that the braking surfaces are formed on half-shells which rest on the lateral surface of the respective pivot pin and on this lateral surface can be pressed on via screws which extend in a direction approximately perpendicular to the pivot axis of the window.

Each such fitting now only consists of three parts, namely a fitting part with the pivot pin, and the two half-shells, the taps around the outer surface of the pivot placed and pressed against the outer surface by means of the screws. The fitting part with the pivot pin is in the generally attached to the window frame. It is important that the adjustment of the braking force is now vertical in one direction can be done to the pivot axis. The window sash now only needs to be inserted with a half-shell screwed to it

509812/0142

the pivot attached to the frame to be inserted, whereupon ' then the second half-shell is placed over it and tightened.

It is preferred if in the lateral surface of the pivot pin a groove is incorporated, the braking surfaces formed on the half-shells in a wedge-shaped manner at approximately matching angles are formed by wedge and groove. This significantly increases the braking force achieved in each case, because the braking surfaces are now more or less depending on the setting of the screws due to the wedge effect described pull into the groove of the trunnion. In addition, this makes the braking surface in comparison to a straight cylindrical Outer surface with corresponding braking surfaces considerable ' elevated.

If the height of the wedge surfaces is less than the depth of the groove, the wedge surfaces will be a corresponding one when the screws are tightened Piece drawn into the groove so that manufacturing tolerances can be compensated for.

The inner surface of the wedge surface can be convex, which also creates a larger one in a kind of clamping effect Braking force is achieved. For this purpose, the braking surfaces are made of a suitable plastic material that deforms elastically leaves.

The invention is explained in more detail below with the aid of an exemplary embodiment from which further important features emerge. It shows:

Figure 1 shows a partial section through the to be attached to the window frame Fitting part with a pivot pin;

FIG. 2 shows a view in direction A of this fitting part from FIG. 1;

509812/0142

FIG. 3 shows a view in the direction B of FIG. 1 of this fitting part;

FIG. 4 half-shells cooperating with this fitting part, which are attached to the window sash and form the bearing for the pivot pin;

FIGS. 5 to 7 show a braking surface on an enlarged scale one of these half-shells in a side view (Fig. 5)> a top view (Fig. 6) and in one Section along VII VII of FIG. 6;

FIG. 8 shows a section through two fitting parts installed on a pivoting window, the frame and the Sashes are indicated at the same time.

The first fitting part, which is generally on the window frame is screwed on, is shown in Figures 1-3. It essentially consists of a body 1 with a polygon '· Through hole 2 into which a corresponding polygon 3 is pressed flush. The polygon 3 is in the hole 2 fixed by a pin hammered through a transverse hole 4. The one sits on the side of the window sash Polygon 3 continues into a bearing pin or pivot pin 6, in a groove 7 is incorporated in the embodiment shown. The two side walls of this groove form an angle of about 75 ° with each other. This angle has proven to be optimal for window sashes weighing approx. 200 kg. at The angle can also be larger for lighter sashes, and smaller for heavier sashes.

From the outside, the fitting shown is still secured by means of a cover cap 8 covered, which is snapped onto the body 1.

This fitting part is fastened to the associated frame 10 by means of screws 9 (see also FIG. 8).

509812 / 0U2

The pivot pin 6 forms a bearing for two Ha3.bsch.alen, which in their assembly on the associated window sash 11 (cf. Fig. 8) are shown in Fig. 4. The first half-shell 12 lying there below has a body 13 with two through bores 14, which extend perpendicular to a plane 15, which in turn the parting plane between the two half-clials 12 and 16 forms. The pivot axis 17 of the wing runs through this plane 15. From Fig. 4 it can also be seen that both half-shells Maintain a small distance 18 from one another in the assembled state. Both half-shells are grounded to one another by means of screws 19 drawn, which are screwed into the through holes 14. The second half-shell has 16 for this purpose two threaded holes 20 which continue the through holes 14.

The distance 18 between the two half-shells 12 and 16 is achieved by the corresponding dimensions of the pivot pin 6. The upper half-shell 16 is screwed to the wing 11 by means of screws 2g.

In both half-shells a braking body 21 is respectively inserted, which is shown enlarged in the figures 5-7. This brake body has an outer groove 22 for fastening to its half-shell, with which it is placed in a snug fit on a corresponding Ripj> e of a half-shell. Both brake bodies 21 taper conically towards the pivot axis 17, as best shown in FIG. The angle enclosed by the two lateral surfaces 22 corresponds practically to the angle of the groove 7 of the pivot pin 6. FIG. 6 also shows that the inner surface 24 is widened in a crowned manner. In the assembled state, this inner surface 24 keeps a small distance from the base surface 25 of the groove 7 (see Fig. 1).

During assembly, the fitting part shown in FIGS. 1-3 is screwed to the frame 10. The upper half-shell 16, too Tiit desi wing 11 is screwed. Then the The wing with its two half-shells 16 is placed on the two pivot pins 6. Then the other half-shell 12

509812/0142

by means of the two screws 19 screwed to the first half-shell 16. You can now only try out simple pivoting, whether the braking force between the surfaces 23 and 7 is correctly adjusted. If necessary, the braking force is readjusted by further tightening or loosening the screws 19.

509812 / 0U2

Claims (4)

Expectations Hardware for a pivot window with fittings attached to both sides of the window frame, which, together with the fittings attached to the window frame, have a horizontal pivot axis of the Form window, the center of gravity of the window extending outside this pivot axis and at each one the fitting parts of each fitting pair a braking surface is provided, which is with a counter surface of the other Fitting part cooperates, and the contact pressure of the two adjacent surfaces can be adjusted via screws is, and with the pivot axis forming pivot pin, characterized in that the braking surface // ^ 23) are formed on half-shells (12, 16) which rest on the dumbbell surface of the respective pivot pin (6) and can be pressed against this jacket surface (6) via screws (19) which are located in extend in a direction approximately perpendicular to the pivot axis of the window (11). 2. Fitting for a pivot window according to claim 1, characterized in that in the lateral surface of the pivot pin (6) a groove (7) is incorporated, and that the braking surfaces (23) formed on the half-shells (12, 16) are wedge-shaped are formed at approximately matching angles of the wedge and groove. 3. fitting for a pivot window according to claim 2, characterized characterized in that the height of the wedge surfaces is smaller than the depth of the groove 67). 4. Fitting for a pivot window according to claim 3, characterized in that that the inner surface (24) of the wedge surface (23) is convex. ". 509812/0142