EP1498563B1 - Device for providing a ventilation gap - Google Patents

Abstract

The window opening has a blending frame (2) that moves around a vertical axle (VA) and a horizontal axle (HA) and can be tilted in this way. The window frame (1) and blending frame form an extending unit (4) with an extending arm (5) that extends from a position (6) and the arms glide in the frame.

Description

The invention relates to a night ventilation device according to the preamble of claim 1.

Measuring scissors are known for tiltable, especially for swiveling and tilting wings (tilt or tilt-turn wings) of building windows and doors. Also known are tilting or turn-tilt fittings, which are intended for such wings and each have a Ausstellschere with which limits the maximum tilting movement or Kippöffnungsbewegung and thus the maximum tilt position is set.

It is often desirable in tilt or turn-tilt wings to allow for the wing a secured tilt or intermediate position between the maximum tilt position and the closed position, for a reduced ventilation gap, in which the wing is detected or at least as far as secured in that it can only be moved out of this intermediate position by overcoming a certain force.

A device which allows such a secured intermediate position of the wing is referred to as "gap ventilation device" in the context of the invention.

Known is a wing lock (DE 91 00 374.1), which consists essentially of a pivotally mounted on a frame lever provided which has a plurality of locking teeth successively in the lever longitudinal direction. The ratchet teeth cooperate with a bolt-like, provided on the wing frame locking element, in such a way that in the respective secured by the wing lock tilt position, the locking element is engaged in a locking tooth of the pivoting lever. The wing lock is provided in addition to the Ausstellschere the turn and tilt window. The disadvantage is, inter alia, that the wing lock is visible and thus visually disturbing mounted on the frame and represents an additional structurally complex functional element. Of the Wing guard thus disturbs not only the visual appearance of the window, but also requires additional manufacturing and assembly costs.

Also known is a locking device for limiting the opening of tilting and folding wings (DE 24 51 556 A1). In this known device, the functional elements for the opening limitation, d. H. integrated for the gap opening in the Ausstellschere, as a cooperating with a toothed locking member. The locking member is formed at the end of a pin over which the extension arm of the Ausstellschere in a sliding guide a cuff rail of the turn-tilt fitting is slidably and pivotally guided. The locking member cooperates with a serration, which is provided on a drive rod of the fitting and is movable by actuating the drive rod from an inactive position into an effective and thus the locking member locking position. A disadvantage of this known training u.a. the relatively complex construction and the fact that a reliable long-term use of these known Ausstellschere is not guaranteed, since the game is relatively large in such a pair of scissors or even increased in use by wear and tear. In addition, it is necessary to lock the respective intermediate position (night ventilation position) to actuate the actuating or locking lever of the fitting accordingly, which is cumbersome and requires a different from the usual getting used to operation.

Also known is a Ausstellschere (EP 0 960 999 A 1), the intermediate positions or gap ventilation positions allows characterized in that spring means are provided which generate a Kippöffnungsbewegung opposite spring force. This spring means act on the wing-side fitting in a sliding guide slidably and pivotally held end of the extension arm and bias it in a closed position of the wing corresponding position. A disadvantage of this known Ausstellschere that the tilting of the wing from the closed position into the tilted opening position, the force of the spring and a considerable frictional force must be overcome. Especially the frictional force leads to a increased wear and unacceptable noise. In addition, there is no secure intermediate position or gap ventilation position for the wing, in particular for a higher sash weight.

The object of the invention is to provide a simplified night ventilation device whose Funktionselmente concealed, d. H. optically not visible on the wing and on the frame or on the functional elements of a Ausstellschere are provided. To solve this problem, a gap ventilation device is designed according to the patent claim 1.

The night ventilation device according to the invention can be realized in a particularly simple and cost-effective manner. For this purpose, for example, on a scissors of conventional design as an additional functional element only a gap ventilation spring is required, which then, for example. is mounted on the fitting or on the faceplate and cooperates with a counter-detent, which is provided for example on the stay. The counter-latching is preferably formed by a locking plate which is required anyway on the stay-out arm.

The night ventilation spring takes up only a small space and can be easily mounted, especially as a retrofit. Furthermore, the gap ventilation spring can be made as a molded plastic, for example as injection molded plastic particularly simple and inexpensive.

Excessive friction and, associated with excessive wear are avoided in the invention as well as a non-tolerable noise. The usual, the user familiar operation of a wing or provided on this wing tilt bracket or turn-tilt fitting are not changed by the inventive design, ie the usual operation is maintained.

Fig. 1

in vereinfachter Darstellung ein Dreh-Kipp-Fenster;

Fig. 2 und 3

jeweils in Teildarstellung und in Draufsicht (Figur 2) und in Seitenansicht (Figur 3) eine Ausstellschere mit integrierter Spaltlüftungsvorrichtung gemäß der Erfindung;

Fig. 4 - 7

in perspektivischer Darstellung (Figur 4), in Draufsicht (Figur 5), in Seitenansicht (Figur 6) sowie in einem Teilschnitt (Figur 7) eine Spaltlüftungsfeder zur Verwendung bei der Vorrichtung der Figuren 2 und 3;

Fig. 8

in einer Darstellung ähnlich Figur 5 eine weitere Ausführungsform der Spaltlüftungsfeder zur Verwendung bei der Vorrichtung der Figuren 2 und 3;

Fig. 9 - 12

eine mit der Spaltlüftungsfeder zusammenwirkende Schließplatte zur Verwendung bei der Vorrichtung der Figuren 2 und 3 in perspektivischer Darstellung (Figur 9), in Draufsicht (Figur 10), in Stirnansicht (Figur 11) sowie im Längsschnitt (Figur 12).

The invention will be explained in more detail below with reference to the figures of an embodiment. Show it:

Fig. 1

in a simplified representation of a turn-tilt window;

FIGS. 2 and 3

each in partial view and in plan view (Figure 2) and in side view (Figure 3) a Ausstellschere with integrated gap ventilation device according to the invention;

Fig. 4-7

in a perspective view (Figure 4), in plan view (Figure 5), in side view (Figure 6) and in a partial section (Figure 7) a gap ventilation spring for use in the apparatus of Figures 2 and 3;

Fig. 8

in a representation similar to Figure 5, a further embodiment of the night ventilation spring for use in the apparatus of Figures 2 and 3;

Fig. 9 - 12

a cooperating with the gap ventilation spring closing plate for use in the apparatus of Figures 2 and 3 in a perspective view (Figure 9), in plan view (Figure 10), in front view (Figure 11) and in longitudinal section (Figure 12).

In the figures, 1 is the wing of a turn-tilt window, which is provided with the aid of a suitable fitting (turn-tilt fitting) in a floor or frame 2 pivotable about a vertical axis VA and about a horizontal axis HA tilted.

Part of the actuated in a known manner via a handle 3 fitting is, inter alia, a tilting or Ausstellschere 4, which is provided in the upper horizontal fold region of the wing 1 and the window frame 2: The Ausstellschere 4 consists in a conventional manner from a stay 5, the is hinged at one end by means of a bearing 6 on the frame 3, including for pivoting about the axis VA. The other end of Ausstellarmes 4 is approximately in the middle of the wing 1 on a mounted in the rebate of the wing faceplate 7 of the turn and tilt fitting sliding and guided pivotally, with the help of a provided at this end of the stay 5 hinge or head bolt 8, which forms a guide and extending in the longitudinal direction, the Stubs rail slot 9 for pivoting and axial displacement in the direction of the longitudinal axis of the face-plate. 7 is guided. The Ausstellschere 4 also has in a known manner an additional arm or lever 10 which is hinged at one end by means of a hinge pin 11 on the stay and at the other end by means of a hinge pin 12 on the faceplate 7 and in the selected for the figure 2 Representation in a plane below the Ausstellarmes 5, but above the top 7.1 of the faceplate 7 is located.

The turn-tilt fitting is designed as a drive rod fitting, i. on the face plate 7, a drive rod 13 is axially and slidably guided in Stulpschienenlängsrichtung for a stroke of predetermined length. The drive rod 13 is located on the side facing away from the extension arm 5 and the additional arm 10 bottom 7.2 of the faceplates and is provided with a plurality of bars formed by pins 14, each projecting through a slot 15 on the top 7.1 of the faceplate 7. Each bar 14 is assigned to the face plate 7 facing underside of the extension arm 5 attached to this underside closing plate 16.

Each closing plate 16 is in the illustrated embodiment, a molding of a suitable material, such as metal or zinc injection molding and is substantially formed as a rectangular plate, which is rounded at one end or on a narrow plate side at 17. At the bottom 16.1, the closing plate 16 on projecting, molded pin 18, which allow attachment to the stay 5 by riveting.

At the upper side 16.2, each closing plate 16 is formed with a groove 19 extending in the longitudinal direction of this plate, which is open on the other narrow side of the plate and closed on the narrow side having the rounded portion 17. In this groove 17 engages the associated latch 14 when locked on the faceplate 7 stay arm 5 a. About the open end of the latch 14 when locking and unlocking in the Groove 19 inserted or moved out of this. On the outer surface of the rounded end 17 each closing plate 16 is provided with a recess 20 which is formed part-circular in the illustrated embodiment, about a curvature axis perpendicular to the bottom plane of the closing plate 16. The closing plate 16 may at the end 17 and two or more than two recesses 20 which are offset in the transverse direction of the closing plate against each other.

Each closing plate 16 is furthermore embodied mirror-symmetrically with respect to a center plane M1 enclosing the longitudinal axis of the rectangular closing plate and oriented perpendicular to the plane of the underside.

When closed and locked wing 1 are 5 outrigger, additional arm 10 and faceplate 7 congruent to each other and each bar 14 engages in its closing plate 16, whereby the extension arm 5 is locked to the faceplate so as to keep the wing 1 in the closed state or to pivot about the axis VA. By appropriate movement of the drive rod 13, the closing plates 16 are released from the bars 14 in befindlichem in the closed position wings 1, so that the wing 1 tilted pivoting the Ausstellarmes 5 relative to the faceplate 7 and sliding the head bolt 8 in the slot 9 to open can. The maximum tilting position is reached when the head bolt 8 abuts against the additional arm 10 facing the end of the slot 9.

In many cases, it is now desirable not to completely tilt the wing 1, ie in its maximum opening or tilting position, but in an intermediate position which lies between the closed position and the maximum tilted position and in which there is only a narrow ventilation gap between the frame and the wing. In order to make this possible, a gap ventilation spring 21 is attached to the top side 7.1 of the faceplate 7.

The design of this spring is shown in Figures 4 - 5 in detail. In the illustrated embodiment, the gap ventilation spring 21 is a molded part made of a suitable tough and permanently elastic plastic. It consists of a spring body 22 with the top 23 and bottom 24 and from an integrally formed on this spring body 22 lateral locking lug 25. The spring body 22 is executed in the illustrated embodiment as an approximately rectangular plate, in the representation of Figure 5 with a lower Peripheral side 22.1, an upper peripheral side 22.2 and two longitudinal sides 22.3 and 22.4. On the longitudinal side 22.4, the locking lug 25 is formed, which extends along this longitudinal side from the peripheral side 22.1 into the region of the peripheral side 22.2, within the levels of the top 23 and bottom 24 and is spaced from the longitudinal side 22.4, wherein this distance with increasing distance from the peripheral side 22.1 increases.

The spring body 22 is in a partial region 22 ', which also has the peripheral side 22.1 formed so that there the top 23 and the bottom 24 are parallel to each other and are spaced apart according to the thickness of the plate-shaped spring body. In an adjacent to the peripheral side 22.2 and this peripheral side having further portion 22 "of the spring body 22 is slightly beveled at the top 23 and bottom 24, in such a way that the distance between the top and bottom in this section 22" out to the peripheral side 22.2 out slightly decreases. Accordingly, the locking lug 25 is formed at the top and bottom.

At the portion 22 'an opening 26 is provided, which serves for fastening the night ventilation spring 21 on the face-plate 7, for example by rivets or screws. Furthermore, two blind holes 27 are formed on the portion 22 'in the upper side 23 and in the bottom 24 offset from the opening 26, record for the twist-proof attachment of the night ventilation spring 21 on the face plate 7 corresponding provided on the top 7.1 pins.

In the region of its free end, the locking lug 25 is provided with two bead-like notches 28 and 29, which are offset in the longitudinal direction of the latching lug 25 against each other.

As FIGS. 4 to 7 further show, the night ventilation spring 21 is mirror-symmetrical to a center plane M2 which runs in the middle between the upper side 23 and lower side 24, so that the night ventilation spring 21 is optionally open for wings 1 which are turned to the left , or can be used for those that are opened when turning to the right.

As shown in Figure 2, the gap ventilation spring 21 is attached with its portion 22 'at the top 7.1 of the faceplate 7 so that they with the partial portion 22 "and with the free end of the locking lug 25 having partial length of this locking lug on that longitudinal side of the faceplate 7, which faces the extension arm 5 with the wing 1 tilted and encloses an acute angle therewith The gap ventilation spring 21 is furthermore fastened so that the latching lug 25 upon closing of the tilted wing 1 first reaches the catch 28 before reaching the final closed position on further closing of the catch 29 engages the recess 20 of a closing plate 16. This results in two tilting or intermediate positions for the wing 1, in which between the wing 1 and the frame 2 only a reduced ventilation gap remains, namely when snapping the catch 28 in the counter-detent or recess 20 a ventilation gap of greater width a ls when locking the catch 29 in the recess 20th

The gap ventilation spring 21 is further fastened so that the latching lug 25 faces the additional lever 10 as well as the hinge formed by the head bolt 8 and the slot 9. This orientation of the locking lug 25 has significant advantages. When tilting the wing 1 from its closed position into the open position or tilt position namely the extension arm 5 is moved with its one end in the slot 9 in the direction of the night ventilation spring 21, so that thereby when snapping a detent 28 and 29 of the engagement of this detent in the Counter latch 20 is amplified while moving the wing 1 in the closed position by moving the stay arm 5 in the slot the disengagement of the latch 28 and 29 and the counter-latch 20 is supported. This means that the gap ventilation spring 21 reliably secures the wing 1, in particular in the respective intermediate position, against unwanted further opening (for example due to the wing weight).

Both in the final closed position, as well as in the maximum tilted position, the gap ventilation spring 21 is disengaged from the mating latch 20 formed on the associated closing plate 16.

In the closed position of the wing 1, the gap ventilation spring 21 or its spring body 22 between the stay 5 and the face-plate 7 are arranged.

The at least one latching lug 25 is resiliently pivotable in a plane parallel to the upper side 23 and underside 24, and thus with gap ventilation spring 21 fastened to the faceplate 7 in a plane perpendicular to the axis of the head bolt 8 or perpendicular to the pivot axis of the head bolt 8 and the slot 9 formed slide-pivot guide. As a result, even when in an axial direction perpendicular to the top 7.1 of the faceplate 7 flat training of Ausstellschere 4, a sufficiently large travel for the locking lug 25 is possible.

Figure 8 shows in a representation similar to Figure 5 as another possible embodiment, a gap ventilation spring 21a, which differs from the gap ventilation spring 21 only in that the local spring body 22a formed narrower and the locking lug 25 corresponding locking lug 25a is made shorter and only one rest , namely the latch 28 has.

The inventive construction has the advantage that as a gap ventilation device essentially only a single component is required, namely, for example, made of plastic spring 21 or 21 a, and that can be used as a counter-latching for this spring an already existing closing plate. Other advantages include a very simplified installation, even with the possibility of retrofitting Night ventilation device or the night ventilation spring. The usual function and operation of the turn-tilt window or the corresponding fitting is maintained, so that a simple and understandable for the user operation is possible.

The invention has been described above by means of exemplary embodiments. It is understood that numerous changes and modifications are possible without thereby departing from the inventive idea underlying the invention.

So it was assumed above that the gap ventilation spring 21 and 21 a is attached to the faceplate 7. Basically, however, it is also possible to retrofit this spring, for example, already mounted fitting and then screw through corresponding openings in the face-plate 7 and in the drive rod 13 through the frame of the wing 1.

LIST OF REFERENCE NUMBERS

1

Tilt-wing

2

frame

3

Handle

4

scissor

5

out arm

6

camp

7

faceplate

7.1

Top of the faceplate rail

7.2

Bottom of the faceplate

8th

studs

9

Long hole

10

additional arm

11, 12

Joint for additional arm 10

13

driving rod

14

Latch or bolt

15

Slot for bolt 14 in the faceplate

16

closing plate

16.1

Closing plate underside

16.2

Closing plate upper side

17

rounded end of the closing plate

18

fastening pins

19

groove

20

Recess or counter-latching

21, 21a

Night vent spring

22, 22a

spring body

22 ', 22 "

Part of the spring body 22nd

22.1, 22.2, 22.3, 22.4

Circumferential sides of the spring body 22

23

Top of the spring body 22nd

24

Bottom of the spring body 22

25, 25a

locking lug

26

fastening opening

27

blind hole

28, 29

rest

M1, M2

midplane

Claims (16)

1. Gap-opening device for a casement or leaf (1) which is provided for at least tilting action in an (outer) frame (2) of a window or a door in a building, having a pivoting arm (5) which can be fastened, at one end, on the outer frame (2) by way of a first bearing (6) and, at the other end, on the casement/leaf by way of a second bearing (7, 8, 9) and having a latching member (21) which acts between the pivoting arm (5) and a fitting part (7) of one of the bearings and, by virtue of latch-in action, secures the casement/leaf (1) in at least one tilting position, characterized in that the latching member is at least one ventilation-gap spring (21) which is provided on the fitting part (7) and/or on the pivoting arm (5) and has a resilient latching nose (25, 25a) provided with at least one catch (28, 29), and in that provided on the pivoting arm (5) or on the fitting part (7) is at least one mating catch (20), into which the at least one catch (28, 29) of the latching nose (25, 25a) latches resiliently in the tilting position.
2. Gap-opening device according to Claim 1, characterized in that the pivoting arm is an opening-out arm (5) of a scissor-action opening-out means (4) which limits the tilting movement of the casement/leaf (1), and in that the tilting position in which the ventilation-gap spring (21) latches into the at least one mating catch (20) is an intermediate position between a maximum tilting position of the casement/leaf (1) and a closed position of this casement/leaf (1).
3. Gap-opening device according to Claim 1 or 2, characterized in that at least one bearing, for example the second bearing, is a pivoting/sliding bearing (8, 9).
4. Ventilation-gap device according to one of the preceding claims, characterized in that the ventilation-gap spring (21) comprises a spring body (22) which is provided on the fitting part (7) or on the pivoting arm (5) and has an integrally formed latching nose (25, 25a).
5. Ventilation-gap device according to one of the preceding claims, characterized in that the at least one latching nose (25, 25a) can be pivoted resiliently in a plane which is arranged perpendicularly, or more or less perpendicularly, to a pivot axis of the second bearing (8, 9).
6. Ventilation-gap device according to one of the preceding claims, characterized in that the at least one latching nose (25, 25a) or that part of the ventilation-gap spring (21) which forms this latching nose projects beyond a longitudinal side of the fitting part (7) or of the opening-out arm (5), which (longitudinal side), in a state of the scissor-action opening-out means (4) which corresponds to the casement/leaf (1) being tilted to the maximum extent, projects into an angle space formed between the opening-out arm (5) and the fitting part (7).
7. Ventilation-gap device according to one of the preceding claims, characterized in that, in a state of the scissor-action opening-out means (4) which corresponds to the casement/leaf (1) being closed, the ventilation-gap spring (21) is arranged between the opening-out arm (5) and the fitting part (7).
8. Ventilation-gap device according to one of the preceding claims, characterized in that the gap-opening spring (21) is produced in one piece from plastic, to be precise with a spring body (22) which can be fastened on the casement/leaf (1) or on the fitting part (7).
9. Ventilation-gap device according to one of the preceding claims, characterized in that the at least one latching nose (25, 25a) extends along a peripheral side (22.4) of the spring body (22) or a sub-section (22") of the spring body (22), for example the sub-section (22' ') of the spring body (22) projecting, together with the latching nose (25, 25a), beyond the longitudinal side of the fitting part (7) or of the opening-out arm (5).
10. Ventilation-gap device according to one of the preceding claims, characterized in that the mating catch is formed on a locking plate (16) of the opening-out arm (5), this locking plate interacting with at least one locking bolt (14), provided on the fitting part (7), in order to lock the opening-out arm (5) in a state of the scissor-action opening-out means (4) which corresponds to the casement/leaf (1) being closed.
11. Ventilation-gap device according to one of the preceding claims, characterized in that at least two catches (28, 29) are provided on the at least one latching nose (25) in a formation in which they are offset in relation to one another in the longitudinal direction of the latching nose.
12. Ventilation-gap device according to one of the preceding claims, characterized in that the ventilation-gap spring (21), including the spring body (22) and latching nose (25, 25a) is of essentially plate-like design, and/or in that the ventilation-gap spring (21) is designed to be mirror-symmetrical in relation to a centre plane (M2) running between a top side (23) and an underside (24) of the spring.
13. Ventilation-gap device according to one of the preceding claims, characterized in that the spring body (22) contains at least one fastening opening (26) and, offset opposite the latter, in order to secure against rotation, at least one further opening (27) for a pin or bolt provided on the fitting part (7) or on the opening-out arm (5).
14. Ventilation-gap device according to one of the preceding claims, characterized in that, in a certain sub-region, the latching nose (25) has a thickness which decreases in the direction of the free end of the latching nose, and/or in that, in the sub-section, the spring body (22) has a thickness which decreases in the direction of a free border (22.2) of this sub-section.
15. Ventilation-gap device according to one of the preceding claims, characterized in that the at least one catch (28, 29) is provided on a side of the latching nose (25, 25a) which is directed towards the second bearing (8, 9).
16. Ventilation-gap device according to one of the preceding claims, characterized in that the fitting part (7) is a lock-case-front rail (7) of a tilting or pivot-and-tilt fitting designed as a driving-rod fitting, and/or in that at least two mating catches are provided, preferably on the locking plate (16).

Images