EP1688571B1 - Swivel bearing for a tilting window - Google Patents

Abstract

The swivel bearing mounting for a swing window has a plate (1) fixed at the fixed window frame and a plate (2) at the swing window pane frame, with an intermediate arm (4) between them. To swing the window into an open ventilation position, the intermediate arm rotates around a swing axis (3) against the fixed plate, with the window turning in a swing movement around a second axis at a maximum angle for ventilation. Both swing axes have a mechanical brake, where one brake (6) has a stronger action on the intermediate arm in one direction than in the other, using brake strips (6a,6b) with different coefficients of friction.

Description

The invention relates to a base camp for swing wing windows, the wings of which is arranged about halfway up the wing horizontal pivot axes for ventilation up to about 60 ° and for cleaning up to about 180 pivotally. The opposite of the casement bearings are usually mirror-image but functionally the same.

Each bearing basically consists of a first frame bearing plate which can be fastened to the frame frame, a second frame plate which can be fastened to the casement and an arm-shaped central part arranged between these, which is pivotally connected to each of the two other parts via a respective pivot axis. When opening the sash from the closed position, the central arm pivots together with the sash part as a unit about the first pivot axis relative to the fixed frame part until reaching the maximum ventilation position. For larger opening angle of the wing part pivots about the second pivot axis with more than 90 ° relative to the latched in its end position middle part.

The development of the frame profiles goes in the direction of ever larger cross-sectional profiles, with the focus of the wing glass moves ever further outward. As a result, the operating forces and the risk increase that the wing from its ventilation position (between 0 ° and 60 ° up to 80 °) by the heavy forces acting on the wing strikes.

Although it is customary to assign the two pivot axes adjustable braking devices. However, these would have to be set so tightly if they were to prevent slamming of the wing, that the operating forces would be further increased, regardless of the pivoting direction. Thus, two brake devices on the two pivot axes provided are known and used at EP-A 558 966 (GU), there column 1, lines 24 to 56, as well as from the older one DE-C 976 398 (W. Hautau), there page 1, lines 1 to 20. The design of a braking device on the inner axis is the subject of DE-D 975 710 (W. Hautau), which on this axis a bearing intermediate part, there 5, rotatably mounted and equipped with a braking device which has an internal ratchet wheel. On this ratchet wheel as a guide axis, there 14, the bearing intermediate part, there 5, with spring latches thereon, rotates there 15. These spring latches cause, that the brake is engaged only when closing, however, when opening no braking action of the brake device is formed to reduce the wear of the braking parts, see. there side 3, left column, lines 1 to 40. The one-way clutch thus described provides on the one hand the self-locking braking for large, heavy swinging wings, there page 2, right column, last paragraph, as well as for the reduction of wear by freewheel when opening , The brake is only braking effect when closing, so that it is easy to ventilate without braking effect and only when closing the brake friction is overcome.

It is an object of the invention in swing wing windows to prevent slamming of the wing (in the stress as "the camp") when it is loaded with a weight corresponding to the weight of the sash and the operating forces are not too large.

This object is solved by claim 1 or 17. Here, the set braking and thus the operating forces remain constant in one pivot direction, although different with respect to the pivoting about the first or about the second pivot axis. In the other pivoting direction, however, the braking effect for counteracting the force acting on the wing is substantially increased during the movement about the first pivot axis. Although this also increases the operating forces in this pivoting movement, but limited, since the force of gravity in the same pivoting direction is effective.

With these measures can be achieved that regardless of the ventilation angle of the wing an uncontrolled movement of the wing is prevented under the action of gravity.

The increased braking effect occurs after just a few degrees of angular movement of the wing.

The positions of the bearing or window always refer to the use of wing / frame or inside / outside always on the camp itself, which recognizes the expert "claimed as such" recognizes (claim 1).

Figur 1, Figur 2

zeigen ein Grundlager in der 180° Offenstellung, und zwar mit Blick entlang der horizontalen Schwenkachsen 3, 5 des Lagers, in Figur 1 auf die Lager-Innenseite der Rahmenlagerplatte 1, in Figur 2 auf die Lager-Innenseite der Flügelrahmenplatte 2. Die Spiegelebene 100 ist eingezeichnet, bezogen auf beide Figuren.

Figur 3

zeigt das Lager in 180° Offenstellung von unten, wobei Abdeckkappen auf das Grundlager aufgesetzt sind.

Figur 4

zeigt das Lager in geschlossener Stellung im Querschnitt in einer Ebene einer ersten Schwenkachse mit Blick von unten und vergrößert gegenüber der vorigen Figur "b" ist gleich im Maß. Winkelstücke (Montageschalen) umgeben das Grundlager, um den Einbau in verschiedene Flügelprofile zu erleichtern.

Figur 4a

ist eine Vergrößerung von Figur 4.

Figur 5

zeigt das Lager in perspektivischer Ansicht, wobei die Rahmenlagerplatte 1 entfernt ist und die Flügelrahmenplatte 2 gegenüber dem Mittelteil 3 leicht verschwenkt ist, sich also bereits jenseits der maximalen Lüftungsstellung befindet.

Figur 6

zeigt das Lager im Schnitt senkrecht zu den Schwenkachsen 3, 5 in seiner Schließstellung, wobei die Schnittebene oberhalb einer Bremsplatte einer der ersten Schwenkachse 3 zugeordneten Bremsvorrichtung liegt.

The invention will be described in more detail below with reference to schematic drawings of several exemplary embodiments:

FIG. 1, FIG. 2

show a base camp in the 180 ° open position, with a view along the horizontal pivot axes 3, 5 of the camp, in FIG. 1 on the bearing inside of the frame bearing plate 1, in FIG. 2 on the bearing inside of the sash frame plate 2. The mirror plane 100 is shown, based on both figures.

FIG. 3

shows the bearing in 180 ° open position from below, with caps are placed on the base camp.

FIG. 4

shows the bearing in the closed position in cross section in a plane of a first pivot axis with a view from below and enlarged relative to the previous figure "b" is equal in size. Contra-angles (mounting shells) surround the basic bearing to facilitate installation in various sash profiles.

FIG. 4a

is an enlargement of FIG. 4 ,

FIG. 5

shows the bearing in a perspective view, wherein the frame bearing plate 1 is removed and the sash frame plate 2 is slightly pivoted relative to the central part 3, that is already beyond the maximum ventilation position.

FIG. 6

shows the bearing in section perpendicular to the pivot axes 3, 5 in its closed position, wherein the cutting plane above a brake plate of the first pivot axis 3 associated brake device.

From the Figures 1 and 2 It can be seen that the bearing consists of three relative to each other movable parts, which can be fastened to the window frame of the window frame plate 1, the wing frame attachable sash plate 2 and an arm-shaped center part 4. "Top" is in the direction of the vertical extent of the vertical frame spar of wings and Window frame drawn. A swiveling out of the plate 2 (with associated wing) takes place in the direction α, first to the ventilation position, then to the 180 ° open position, in which the arm part 4 is slightly inclined relative to the horizontal, swung out by about 80 ° in the example shown.

These parts 1, 2 and 4 are connected via two pivot axes 3 and 5 with each other. The plate 1 is stationary as a fixed frame plate, which pivots relative to the wing plate 2. α indicates the swing direction.

A first pivot axis 3 connects the arm-shaped central part 4 with the plate 1 and the second pivot axis of the central part 4 with the plate 2. Each of the two pivot axes is assigned in their braking individually adjustable braking device 6 and 7, in the preferred embodiment of two or more on the pivot axis aufgefädelten brake plates which lie flat against the arranged on the pivot axis and relative to the slats relatively rotatable parts.

The pivoting movement of the intermediate or central arm 4 with respect to the plate 1 is limited, usually to a ventilation area between the closed position and a maximum opening angle of the wing of e.g. 60 ° or up to 70 ° to 80 °. In this area, wing plate 2 and middle part 4 pivot together about the first pivot axis 3.

When the maximum ventilation angle is reached, the center arm is fixed against pivoting, while the wing plate 2 can be fixed about the second pivot axis 5 to e.g. Continue 180 °.

For locking and unlocking middle part 4 and wing plate 2 are arranged on the first pivot axis 3 brake plate 15 which is fixed to the frame plate 1 at 15c via a protruding lug 15b and has an edge recess 15a, and a pivotally mounted on the middle part 4 20e, This has an engaging into the edge recess engaging portion 20a and a recess 20c for engaging a locking projection 21 a of the wing part 2 fixedly arranged release part 21 on. A spring 20d biases radially toward the brake plate.

The assignment of said elements is such that in the closed position of the wing (or bearing) and during the ventilation movements of the pawl 20 of the central part 4 is latched to the trigger 21 of the wing part 2, as the FIG. 6 illustrated. When the ventilation end position is exceeded, the locking hook will engage in the peripheral recess 15a of the brake plate 15 and is thus locked to the frame part 1. Likewise, the arm 4 is then fixed in a Grenzschwenkwinkel relative to the frame plate 1.

The arrangement of the first pivot axis 3 and the relative positions and movements of the middle part 4 and wing part 2 on the one side and the frame part 1 on the other side are on hand FIG. 4 and 4a explained in more detail.

The pivot axis 3 (or the associated shaft) is fixed relative to the frame part 1. It is formed by a cylindrical shaft journal, are arranged on the directly or on a pin arranged on the bush portion of the two brake plates a1 and a2 a first plate group 6a of - this shaft 3 associated - 6 centering part surrounded. On the shaft journal 3 follow: the fixed to the frame plate (not rotatable) brake plate 15; a movable (rotatable) on the pin 3 arranged ratchet 9, which is arranged between two further brake plates b1 and b2 a second plate group 6b of the brake device 6; and a latched with the shaft 3 pressure plate 17 which transmits the pressure of serving to adjust the braking force end face pressure screw 16 on the package of the braking device.

The ratchet 9 is, as from the FIGS. 1 . 3 and 5 visible, provided on its periphery with a toothing 10. Further, the ratchet wheel is associated with a limited extent on the wing part 2 slidably mounted, standing under spring force pawl part 11. This also has on its exposed, arcuate active side a toothing 11a. The pawl part 11 is - mounted in the vicinity of the trigger 21 - on the wing plate 2 movable.

In both cases, these are coordinated fine teeth. The tooth flanks are in both cases - based on the (radial) center of each tooth - unbalanced so that when the serrations of both parts are engaged, the pawl member 11 in the one direction of rotation of the central part relative to the frame plate 1 (opening direction) his toothing 11 a against the action of the spring 13 can dodge radially in the direction 14, since the then engaged tooth flanks mean no positive, circumferential force transmitting engagement, but in the other direction of rotation (closing direction) of the tooth engagement is positive and the ratchet wheel 15 in this Direction of rotation of the arm-shaped central part is taken.

In this case, the slats b1 and b2, which were not previously involved in the braking of the movement, are additionally braking-effective, so that all the slats a1, a2 and b1, b2 together effect the braking with a correspondingly increased, possibly doubled braking force.

This control device 8 is also in perspective in FIG FIG. 5 can be seen, wherein the two toothings 11 a, 10 are not engaged.

By changing the number of lamellae in the two groups or by different effective braking surfaces, the ratio between the two groups can be set relatively sensitive, so that the torque effect of the gravity of the wing can be compensated accordingly.

It is still referred to the following. With 20d on the pawl 20 in the pivoting direction "s" (after FIG. 6 ) effective spring in FIG. 1 just hinted.

The second pivot axis 5 is connected to a coupling plate 25 (after FIG. 2 ) firmly attached, which in turn by means of a clamping screw 26 is firmly (but releasably) screwed to the wing plate 2. The coupling plate has an arm which protrudes radially out of the region of the pivot axis 5 and at 30a and 30b, designed in particular as webs for installation and rotation lock in the assembled state, against pivoting additionally (positively locking) is secured. In this case, the clamping screw 26 is arranged at a readily accessible when the wing is open, so that when the screw is released, the wing with the wing plate 2 can be easily accessed and used.

The three main parts of the bearing can be reliably sealed against each other and used for different frame profiles.

Claims (24)

1. Bearing for a tilting casement window having a fixed frame bearing plate (1) - to be assigned to the blind frame, a casement frame plate (2) - to be assigned to the casement frame - and an arm-like central part (4) arranged between the latter, and which can be pivoted with respect to the frame bearing plate (1) about a first pivoting axis (3) for pivoting of the bearing or casement in the ventilation opening region, wherein the arm-like central part pivots out together with the casement frame plate (2), and wherein

   - the casement frame plate (2) is connected to be pivotable with the arm-like central part (4) via a second pivoting axis (5), which axis permits pivoting beyond a maximum ventilation position of the casement or of the bearing;

   - a mechanically operating braking device (6, 7) is assigned to each of the two pivoting axes (3, 5);

   - the first braking device (6) assigned to the first pivoting axis (3) in one pivoting direction of the arm-like central part as central arm (4) with respect to the fixed frame bearing plate (1) has a braking effect which is greater than in an opposite pivoting direction of the central arm, wherein the greater braking effect on the first pivoting axis (3) during the pivoting movement of the arm-like central part (4) as central arm is provided in the direction towards the closed position to prevent slamming of the casement or closing of the bearing from a ventilation position under the influence of a force or torque corresponding to the casement weight.
2. Bearing according to claim 1, wherein a centre of gravity of the tilting casement in the ventilation positions lies offset to the outer side of the bearing or casement with respect to a vertical plane containing the first pivoting axis (3).
3. Bearing according to claim 1 or 2, wherein the first braking device (6) of the first pivoting axis (3) has two mechanically acting brakes or two groups (6a, 6b) of braking elements, of which in the one pivoting direction, only one is brake-active, and in the opposite pivoting direction, both are brake-active.
4. Bearing according to one of the previous claims, wherein the braking effects of the braking devices (6, 7) assigned to the two pivoting axes (3, 5) can be adjusted independently of one another or in each case autonomously.
5. Bearing according to claim 1 or 2, wherein the braking device (6) for the first pivoting axis (3) has two groups (6a, 6b) of brake lamellae, which differ according to lamellae number and/or according to coefficient of friction,

   - of which a first group (6a) is permanently brake-active during the pivoting movements of the central part (4) with respect to the frame bearing plate (1) - independently of the pivoting direction,

   - a control device (8) operating automatically with respect to the frame bearing part (1) depending on the pivoting direction of the central part (4) is assigned to the second group (6b), which control device (8) switches or controls the brake lamellae of this group to be brake-active only during the closing movement of the central part (4) with respect to the frame bearing part (1).
6. Bearing according to claim 5, wherein the control device (8) has a ratchet (9) mounted to be freely rotatable on the first pivoting axis (3) between brake lamellae of the second group (6b), which has on its periphery toothing (10), to which is assigned a pawl part (11) mounted on the casement frame plate (2) and which has a curved, toothed engagement surface (11a).
7. Bearing according to claim 6, wherein the toothed engagement surface (11a) in the closed position and during pivoting movements in the ventilation region in engagement with the toothing of the ratchet (9) is pretensioned (13).
8. Bearing according to claim 6 or 7, wherein ratchet (9) and pawl part (11) are arranged with respect to one another so that on reaching the ventilation end position as maximum ventilation position, the pawl part lifts from the ratchet.
9. Bearing according to claim 5 or 6, wherein the first pivoting axis (3) as a pin or shaft is connected firmly to the first bearing plate (1) and on the pivoting axis - starting from the frame bearing plate (1) and in each case with a bore slide fit - sequential elements are threaded:

   - a first brake lamella (a1), the arm-like central part (4), a further brake lamella (a2);

   - a brake plate (15) secured (15b) to be non-rotatable on the frame bearing plate (1) with a locking recess (15a) provided on its periphery,

   - a still further brake lamella (b1), the ratchet (9), a fourth brake lamella (b2);

   - a pressure plate (17) connected to be secured against rotation to the pivoting axis (3),

   wherein a pressure screw (16) serving to adjust the braking force is screwed into the pivoting axis (3) on the end-face side.
10. Bearing according to claim 9, wherein a locking hook (20) mounted to be pivotable on the arm-like central part (4) and having an engagement section (20a) adapted to the locking recess (15a) on the periphery of the brake plate (15) is provided.
11. Bearing according to previous claim 10, wherein the locking hook (20) is mounted disengaged from the brake plate (15) counter to a spring pretension by locking with a tripping device (21) arranged on the casement frame plate (2) in the region of the pawl part (11) until during the opening movement, the engagement section falls into the locking recess (15a) of the brake plate (15) and the locking hook (20) is released from the tripping device (21) and/or is engaged with the latter again on reaching the ventilation end position during the closing movement.
12. Bearing according to one of the previous claims, wherein the second pivoting axis (5) is firmly attached to a coupling plate (25), which in turn can be attached positively (30a, 30b) to the casement frame plate (2) by means of a locking screw (26) which is accessible when the casement or bearing is open, so that a casement in upright position can be removed or suspended upwards or from the top when the screw is released.
13. Bearing according to claim 6, wherein the pawl part (11) is designed as a flexibly pretensioned displaceable plate part (11) arranged in the same plane as the ratchet.
14. Bearing according to claim 7, wherein the sets of toothing of ratchet (9) and pawl part (11) are designed so that a positive engagement or engagement transferring peripheral forces is effective only in a pivoting direction to the closed position.
15. Bearing according to claim 8, wherein ratchet (9) and pawl part (11) engage again positively when falling short of the ventilation end position during backward pivoting of the bearing or casement in the direction towards the closed position, so that the ratchet (9) during this pivoting movement towards the closed position is rotated relative to the brake lamellae assigned to it and becomes or is brake-active.
16. Bearing according to claim 6, wherein the sets of toothing (10; 11a) of ratchet (9) and pawl part (11) are designed so finely that ventilation locks of between 2° to 4° are possible.
17. Process for pivoting a tilting casement having a fixed frame bearing plate (1) - assigned to the blind frame, a casement frame plate (2) - assigned to the casement frame - and an arm-like intermediate part (4) arranged between the latter, and which together with the casement frame plate (2) during pivoting of the casement in the ventilation opening region pivots about a first pivoting axis (3) with respect to the frame bearing plate (1); wherein

    - the casement frame plate (2) and with it the casement pivots beyond a maximum ventilation position on the arm-like intermediate part as intermediate arm (4) and hence is connected to be pivotable to the intermediate arm via a second pivoting axis (5);

    - a non-symmetrically operating brake (6) is assigned to the first of the two pivoting axes (3, 5) so that it produces a lower braking force during opening than during opposite pivoting.
18. Process according to claim 17, wherein a centre of gravity of the tilting casement in the ventilation positions of the casement lies offset to the outer side of the casement with respect to a vertical plane containing the first pivoting axis (3).
19. Process according to claim 17, wherein the greater braking effect acts on the first pivoting axis (3) during the pivoting movement of the arm-like intermediate part (4) as intermediate arm in the direction towards the closed position and prevents slamming of the casement from a ventilation position under the influence of a force or torque corresponding to the casement weight.
20. Process according to claim 17, wherein the first braking device (6) of the first pivoting axis (3) has two mechanically acting brakes or two groups (6a, 6b) of braking elements, of which in the one pivoting direction, only one brakes and in the opposite pivoting direction, both brake.
21. Process according to claim 17, wherein braking devices (6, 7) are assigned to both pivoting axes (3, 5) and the braking effects of these devices can be adjusted independently of one another or in each case autonomously.
22. Process according to claim 17, wherein the brake (6) for the first pivoting axis (3) has two groups (6a, 6b) of brake lamellae, which differ according to lamellae number and/or according to coefficient of friction,

    - of which a first group (6a) brakes permanently during the pivoting movements of the intermediate part (4) with respect to the frame bearing plate (1) - independently of the pivoting direction;

    - a control device (8) operating automatically with respect to the frame bearing part (1) depending on the pivoting direction of the intermediate part (4) is assigned to the second group (6b), which control device (8) causes the brake lamellae of this group to brake only during the closing movement of the intermediate part (4) with respect to the frame bearing part (1).
23. Process according to claim 22, wherein the control device (8) has a ratchet (9) mounted to be freely rotatable on the first pivoting axis (3) between brake lamellae of the second group (6b), which has on its periphery toothing (10), to which is assigned a pawl part (11) mounted on the casement frame plate (2) and which has a curved, toothed engagement surface (11a).
24. Process according to claim 17, wherein a locking hook (20) pivoting on the arm-like intermediate part (4) is provided which has an engagement section (20a) adapted to the locking recess (15a) on the periphery of the brake plate (15), wherein the locking hook (20) is mounted disengaged from the brake plate (15) counter to a spring pretension by locking with a tripping device (21) arranged on the casement frame plate (2) in the region of the pawl part (11) until during the opening movement, the engagement section engages into the locking recess (15a) of the brake plate (15) and the locking hook (20) is released from the tripping device (21) and/or is engaged with the latter again on reaching the ventilation end position during the closing movement.

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