EP0957224B1 - Tilt-lock device. - Google Patents

Abstract

The linkage for a tilting window has a return spring (17) to act on the pivot flange (13) follower (18). The spring can be mounted on the pivot flange and by axial movement of the flange is movable by the drive rod (12), with the flange, in a guide slot (14).

Description

The invention relates to a tilt lock device for Tilt and turn windows and doors according to the generic term of Claim 1.

Such a tilt lock device is from DE 36 27 043 known. The task of such a toggle latch device generally consists of ensuring the locking function of the window or the door and on the other hand the setting "lock" the desired switching function, to enable "rotate" and "tilt". Beyond that especially in the tilted position of the window or door leaf an effective prevention of incorrect switching purposes Accident prevention on the one hand and an anti-lift device for To accomplish the purpose of burglary protection on the other hand. Furthermore, a secure system on the frame of the tilted To strive for wing to prevent unwanted rattling, e.g. by Avoid the influence of wind.

The central part of such a tilt lock device is one Bending bar spring. Therefore, the known toggle latch device first explained in more detail based on the bending rod spring become.

For the purpose of securing the wing, the known rocker bar device a bending rod spring Application in a longitudinal slot in a faceplate in With respect to the faceplate is stationary. The bending bar spring has a U-shape in plan view, the Bending rod spring itself a rectangular cross section has and in the longitudinal slot of the faceplate such is recorded that the rectangular cross section transverse to Level of the faceplate is upright. The bending bar spring protrudes the faceplate by at most 1 mm, at least 2 mm of the height of the bending rod spring in the longitudinal slot of the Face plate is added. The longitudinal slot has in the upper straight to parallel to each other up to medium length range running surfaces on which the outer surfaces of the Apply the bending rod spring. In the lower length range of the Longitudinal slots of the faceplate are bulges arranged. The bending rod spring fits in a form-fitting manner by means of her two legs protruding over the faceplate each molded into the back of a swivel tab parallel grooves.

In the, which represents the closed position of the wing Switch position, in one, by means of a hand lever drivable drive rod and the one with it Hinge pin connected swivel bracket in the faceplate all the way is pushed up, the legs of the bending rod spring at least almost over the entire length of the swivel bracket with their longitudinal grooves in holding and guiding engagement. In the middle switching position of the swivel bracket extends the Guiding engagement between the legs of the bending spring and the longitudinal grooves of the swivel bracket over more than that half length. The legs serve as a parallel guide for the swivel bracket. The drive rod is in the lower Switched position transferred, so the two legs of the Bending rod spring only in the one adjacent to the bearing journal Length range of the swivel bracket with its longitudinal grooves in a form-fitting manner Intervention. Is by tilting the wing now the swivel tab from its parallel position The faceplate swivels, so there is an elastic Deformation on the two legs of the bending rod spring, the ends of the two limbs of the flexible rod spring, which follow the swivel movement of the swivel bracket and in immerse the extensions. After all, are at the bottom Protruding bumps at the end of the faceplate slot arranged to ensure that the free ends of the both legs of the flexible rod spring again and again in can return to their normal rest position as soon as the Swivel bracket to take their parallel position to the faceplate examined. To pinch the bending rod in the area of Preventing the bearing journal are several mm thick Faceplate comply with relatively tight tolerances, which at such preferably by means of stamping technology sheet metal to be produced requires considerable use of tools.

It may be due to the relatively strong restoring force the bending rod spring in the longitudinal grooves of the swivel bracket heavy wear in the area of the bearing journal to lead. The bending rod spring can also be in the area of Wedge humps, causing the suspension behavior due to plastic deformation of the spring is disturbed. The functionality can be disadvantageous due to the deformation impact. Furthermore, the abrasion dirty the door or Window frames. Finally act from the bending rod spring resulting noises disturbing during the tipping process.

Flügel verschließen,

Flügel drehen,

Flügel kippen

und zurück zuläßt, also die Hebelstellung des Handhebels am Fenster zwingend festgelegt ist, da es die bekannte Biegestabfeder nur erlaubt im unteren Bereich die Ausbauchungen vorzusehen, und die Schwenklasche nur an den Enden der Biegestabfeder aufgrund der Nutführung in der Schwenklasche verschwenkbar ist.A particular disadvantage is also due to the fact that the known tilt lock device only the switching functions in the order:

Close wings,

Turn wings,

Tilt the wing

and allows back, so the lever position of the hand lever on the window is mandatory, since the known bending rod spring only allows the bulges to be provided in the lower region, and the swivel plate can only be pivoted at the ends of the flexible rod spring due to the groove guide in the swivel plate.

Flügel verschließen,

Flügel kippen,

Flügel drehen.

However, due to increasing globalization - especially in the Anglo-Saxon countries - the so-called tilt before turn - short tbt switching sequence is desired, namely:

Close wings,

Tilt wings,

Turn wings.

This cannot with the known toggle latch device be solved satisfactorily.

Another toggle device is from DE 42 03 909 known. Via a bearing pin designed as a rivet connection a swivel part is connected to a drive rod. The bottom of this swivel part lies on a faceplate and includes with two walls in the Tilt open position at its lower end a latch that designed as an eccentric pin and on a locking plate is attached. The eccentric pin is from the walls of the Swivel part included when the drive rod in the uppermost position, which represents the closed position, is moved.

The swivel part has one in the area of the bearing journal Backdrop approach that fits into one, about the width of the Longitudinal slit of the faceplate engages, one for pivoting the leg part Expansion is planned. The swivel part points to his on the top end face with which the Support swivel part against a spring element which strives is to align the swivel part parallel to the faceplate. This spring element forms an elastic material existing full body vulcanized to a support part, the is riveted to the connecting rod with the drive rod so that the required adhesion between swivel part and Support part is reached. The support part forms with the Spring element is an integral component that connects to the faceplate connected is. However, it has been shown that such Uniqueness does not have the desired durability. The spring material quickly delaminates from the support part, causing the function is completely lost. In addition, that can delaminated material prevent safe closing, because it - following gravity - down into the Closing area falls.

In addition, this tilt lock device can not used satisfactorily for a tbt circuit become.

But there is a need for a safely functioning one Toggle bolt device of the type described, which flexible for both the first and the second of the described switching sequences can be used.

The multi-part object of the present invention is accordingly to provide a rocker bar device, the one allows flexible use, a spring element and a faceplate for use in a To provide tilt lock device, with what a maximum Functional reliability and durability can be achieved.

In addition, the toggle latch device should also the tbt switching sequence enable.

This object is achieved in that the Spring element is assigned to the displaceable swivel bracket and when moving the swivel plate axially over the Driving rod can be carried in the longitudinal slot with the swivel bracket is.

A jamming of the spring and a possible break from it the same is avoided in the long term. Furthermore, the Leverage ratios equal.

According to a preferred embodiment of the invention, the bulges are the longitudinal slot of the faceplate accordingly the desired switchgear specification (normal or tbt) the position of the tilt opening switch position in the middle area or arranged at the lower end. This ensures that the tilt lock device according to the invention modular Use of a corresponding faceplate in general becomes usable.

According to a further preferred embodiment of the invention, the outer Contour of the spring element in the top view arched structure on, the spring element by means of at least one, as Arched extension of the arched structure of trained arch Can be moved longitudinally in the longitudinal slot of the faceplate is. In this way, a compact design can be achieved be, while at the same time optimal material utilization is achievable with regard to the spring material.

Preferably, the journal is the Swivel flap can be accommodated in one of the curved extensions for positive locking to the, using a connecting rod axially movable swivel tab in the desired switching position. In this way, a particularly space-saving Design achieved without disadvantageous spring behavior becomes.

Constructive and effective technical particularly simple a spring element according to the invention can be produced if the Driver is enclosed by the spring element.

Here, according to a further preferred embodiment of the invention Spring element have a slot in the middle, whereby special material and / or manufacturing technology Circumstances can be taken into account.

To special suspension properties of special materials will achieve a particularly compact Design preferred if according to a further preferred embodiment of the Invention the spring element along the outer contour largely rectangular, round, oval or L-shaped Cross-section, or a combination of these cross-sections having.

Optionally, the outer contour of the Spring element closed all round, or one-sided be interrupted.

A spring element is particularly easy to manufacture made of a polymer material that the inexpensive mass production allowed.

According to a further preferred embodiment of the invention, the Spring element to achieve special Resilient embedding embedding - esp. From Aramid - have.

The design of the spring element is particularly advantageous if the outer contour of the spring element in the top view an arched open or arched has a closed structure and at least one opening, in which engages the spring element exciting driver.

It is also advantageous that at least one sheet of the Have spring elements facing outward guide surfaces, by means of which the spring is axially displaceable in the Cuff rail associated longitudinal slot is feasible.

According to a further preferred embodiment of the invention, that the driver completely from the spring element is enclosed or slotted. That way especially one made of polymer material Optimal spring element in a wide range Spring characteristics can be achieved, this by stiffening provided in the spring element Embedding for every conceivable application e.g. different wing weights are adaptable. Furthermore annoying noises are permanently avoided.

It is particularly advantageous if the spring element along the curved structure of the outer contour largely rectangular, has a round, oval or L-shaped cross section, whereby the spatial conditions on the one hand and the Spring characteristics on the other hand as well as the guide surfaces in wide field is customizable.

The longitudinal slot of the faceplate in which the spring element is preferably has one each corresponding cross section. This will make the Leading function positively supported during axial displacement and prevent canting.

Finally, the bulges of the slot can Face plate according to the desired Switching sequence (normal or tbt) in the lower area or in middle area so that the Tilt lock device according to the invention by modular simple replacement of a single component - namely the Face plate - the desired switching function adjustable is.

The invention is described below with reference to several in which Drawing more or less schematically illustrated Exemplary embodiments described in more detail.

Figur 1

eine erfindungsgemäße Kippriegelvorrichtung im Querschnitt in der Kippstellung des Flügels,

Figur 2a

eine Draufsicht der Kippriegelvorrichtung nach der Erfindung gemaß Figur 1,

Figur 2b

eine Draufsicht der erfindungsgemäßen Kippriegelvorrichtung in gekipptem Zustand des Flügels,

Figur 3

die Einzelheit X aus Figur 2a und gestrichelt dargestellt aus Figur 2b

Figur 4a

eine Draufsicht der Einzelheit X im Bereich des Federelements der Kippriegelvorrichtung in geschlossenem Zustand des Flügels, einer ersten Ausführungsform des Federelements,

Figur 4b

eine Draufsicht der Einzelheit X des Bereiches des Federelements der ersten Ausführungsform nach Figur 4a in gekipptem Zustand des Flügels,

Figur 5a

eine Draufsicht der Einzelheit X im Bereich des Federelements der Kippriegelvorrichtung in geschlossenem Zustand des Flügels, einer zweiten Ausführungsform des Federelements,

Figur 5b

eine Draufsicht der Einzelheit X des Bereiches des Federelements der zweiten Ausführungsform nach Figur 5a in gekipptem Zustand des Flügels,

Figur 6a

eine Draufsicht der Einzelheit X im Bereich des Federelements der Kippriegelvorrichtung in geschlossenem Zustand des Flügels, einer dritten Ausführungsform des Federelements,

Figur 6b

eine Draufsicht der Einzelheit X des Bereiches des Federelements der dritten Ausführungsform nach Figur 6a in gekipptem Zustand des Flügels,

Figur 6c

die Querschnittformen des Federelements der dritten Ausfuhrungsform gemäß Figur 6a in ungespannter Stellung,

Figur 7

eine Draufsicht auf eine vierte Ausführungsform des Federelements in Mittelstellung,

Figur 8

eine Draufsicht auf eine fünfte Ausführungsform des Federelements in Mittelstellung,

Figur 9

einen Querschnitt einer sechsten Ausführungsform des Federelements in Mittelstellung,

Figur 10

eine Ansicht des die Kippriegelvorrichtung betätigenden Handhebels der normalen Schaltfolge,

Figur 11

eine Draufsicht der Stellungen der Schwenklasche bezuglich der Schaltfolgen gemäß Figur 10

Figur 12

eine Ansicht des die Kippriegelvorrichtung betätigenden Handhebels der tbt Schaltfolge, und

Figur 13

eine Draufsicht der Stellung der Schwenklasche bezüglich der Schaltfolge gemäß Figur 12.

Show it:

Figure 1

a tilt lock device according to the invention in cross section in the tilt position of the wing,

Figure 2a

2 shows a top view of the toggle latch device according to the invention as shown in FIG. 1,

Figure 2b

2 shows a top view of the tilt lock device according to the invention in the tilted state of the wing,

Figure 3

the detail X from Figure 2a and shown in dashed lines from Figure 2b

Figure 4a

1 shows a plan view of the detail X in the area of the spring element of the tilt lock device in the closed state of the wing, a first embodiment of the spring element,

Figure 4b

4a shows a top view of the detail X of the area of the spring element of the first embodiment according to FIG. 4a in the tilted state of the wing,

Figure 5a

3 shows a top view of the detail X in the area of the spring element of the tilt lock device in the closed state of the wing, a second embodiment of the spring element,

Figure 5b

4 shows a top view of the detail X of the area of the spring element of the second embodiment according to FIG. 5a in the tilted state of the wing,

Figure 6a

3 shows a top view of the detail X in the area of the spring element of the tilt lock device in the closed state of the wing, a third embodiment of the spring element,

Figure 6b

6 shows a top view of the detail X of the area of the spring element of the third embodiment according to FIG. 6a in the tilted state of the wing,

Figure 6c

the cross-sectional shapes of the spring element of the third embodiment according to Figure 6a in the untensioned position,

Figure 7

2 shows a top view of a fourth embodiment of the spring element in the central position,

Figure 8

3 shows a plan view of a fifth embodiment of the spring element in the central position,

Figure 9

3 shows a cross section of a sixth embodiment of the spring element in the central position,

Figure 10

2 shows a view of the hand lever of the normal switching sequence that actuates the toggle lock device,

Figure 11

a plan view of the positions of the swivel bracket with respect to the switching sequences according to Figure 10

Figure 12

a view of the rocker arm operating lever of the tbt switching sequence, and

Figure 13

a plan view of the position of the swivel tab with respect to the switching sequence according to Figure 12.

In the following, the same components are replaced with the same Reference numerals.

It can be seen from FIG. 1 that the toggle latch device 1 in the area of the lower frame corner 3 on the lower frame spar 4 and the wing spar 8 sits. It consists of one on which Frame spar 4 attached rocker plate 7, which around the middle area two locking link webs 5a, 5b and one Bolt member pocket 16 has. The mechanically by means of a Drive rod 12 driven part of the rocker bar device is assigned to the upright wing spar 8. A faceplate 15 is used for the axial guidance of one, via a - in Fig. 11th and 13 shown - can be actuated by means of a lever 30 Drive rod 12 to which a bearing pin 11 is attached, the a longitudinal slot 14 arranged in the faceplate 15 interspersed. On the upright frame spar 4 Side carries the bearing pin 11 pivotable about this mounted swivel bracket 13, which is in at its lower end Form of a cranked, forming an integral extension Has locking member 10. The bearing pin 11 points to the Driving rod 12 facing away from the faceplate 15 a Locking pin 31, which in the top Switch position between two in the upper area of the Tilt lock plate 7 engage locking webs 32 and so secures the closed position of the wing 2. In the, based on the longitudinal slot 14, middle switching position grips - as shown in Figure 2b - on the one hand Lock member 10 in the locking member pocket 16 and is on the other hand, the locking pin 31 by the two Locking bars 32 are no longer locked, so the wing tiltable.

The swivel bracket 13 also has a driver 18, the - As can be seen in particular from FIGS. 2a and 2b - with a Spring element 17 is operatively connected via an opening 26. The outer contour 23 of the spring element 17 has - in plan view seen - arched structure, generally with the reference number 24 is designated. As can also be clearly seen from FIG. 3 is, the spring element 17 has two opposite Arranged arches 241 and 242, which are arch extensions 27a and 27b are formed, by means of which the spring element 17 in the longitudinal slot 14 of the faceplate 15 is guided longitudinally. Through an arched extension 27a engages the bearing pin 11 in the swivel bracket 13, so an immediate positive locking of the spring element 17 with that, the swivel bracket 13 serving as swivel axis Bearing pin 11 causes. The spring element 17 is thus in the Longitudinal slot 14 axially the movement of the drive rod 12 - with the desired switch position is set - directly slidably guided and between Drive rod 12 on the one hand and swivel bracket 13 on the other held. As can be seen from the figures, the Longitudinal slot 14 on its two longitudinal edges 14a and 14b bulges 19a and 19b each. According to that The wing can stop (right or left) Face plate 15 also only one of the bulges 19a or 19b exhibit. The bulges 19a and 19b are in the Longitudinal slot 14 arranged at the point where a tilt is desired. When tilting the driver 18 pivots Swivel bracket 13 the middle region of the arched structure 24 in the direction of the bulge 19a, since the locking member 10 of the Swivel tab 13 engages in the bolt link pocket 16 and therefore relative to the faceplate 15, the drive rod 12 and Toggle lock plate 7 for a limited swivel range is deflectable. The swivel tab is only in this position released for this movement.

In Figure 4a is a first embodiment of the spring element 17 shown in the untensioned position. The Spring element 17 has a slot 25 in the center. As in FIG. 4b shows only the one facing the bulge Part deflected by the driver 18.

A second embodiment of the spring element 17 for larger spring forces are shown in Figure 5. The driver 18 is completely enclosed here by the spring element 17. In order to is achieved that the entire arched structure 24 am Suspension process participates.

In Figure 6 is a third embodiment of the spring element 17 shown, in which - especially from Figure 6c can be seen - the cross section is L-shaped, with an L-leg on the top of the faceplate 15 between this and the swivel bracket 13 is arranged what Wear significantly counteracts when the spring element consists of a low-friction polymer material.

The outer contour of the spring element 17 can along its outer contour 23 closed all round or - as in FIG. 7 and 8 - be interrupted on one side, the Bearing pin 11 penetrates the remaining arch 241. The curved structure 23 of the spring element 17 according to FIG Area of arch 242 in two, with their outside facing guide surfaces 244a, 244b on the longitudinal edges 14a and 14b bear against the inside of the longitudinal slot Thighs 244 out.

The spring element 17 shown in FIG. 8 of a sixth The embodiment takes place in the area of the interruption of the arched structure 24 with an arch 242 then another sheet 243. Both the opposite outlines of arc 242 as well of the arc 243 are tangent to the longitudinal edges 14a and 14b of the longitudinal slot 14 of the faceplate 15.

To adjust the suspension properties of the spring element 17 and / or the system improvement, the cross section of the Spring element 17 as in FIG. 9a largely rectangular, Cross section 28a, according to Figure 9b round cross section 28b and 9c oval cross section 28c or, as above described, and shown in detail in Figure 9d, L-shaped Have cross section 28d. There are also combinations the above cross-section is possible.

The spring element 17 can be stiffened along the Structure encircling embeddings 29 - e.g. made of aramid - be provided, as indicated in Figure 9a.

The longitudinal edges 14a and 14b of the longitudinal slot 14 of the faceplate 15, as can be seen from FIGS. 9a to 9d corresponding to the cross section of the spring element 17 educated.

The configurations described above make it possible the desired spring behavior in a wide range to reach. Furthermore, through the formation of the long edges 14a and 14b of the longitudinal slot 14 in connection with the corresponding design of the arches 241, 242, 243 as well the leg 244 achieves optimal leadership behavior become. Esp. can appear when choosing the interrupted form additional cutouts for mounting the spring element 17 be dispensed with, since the assembly is particularly simple Way by inserting in the marked with K Tilt position of the tilt lock device is reached.

Furthermore, the switching functions should now be compared Representation. In Figure 10 are the three switching position of a lever 30 and in Figure 11 the corresponding positions of the swivel bracket 13 and the associated spring member 17 of the rocker bar device normal switching sequence shown schematically. In the with V designated locking position, the lever 30 is in downward swung position. The lever is about one usual - and therefore not shown - linkage with the Tilt lock device connected to the drive rod acts axially displacing. In this position - as in Fig. 11 shown - the swivel tab in the top, the Closed position representing position at the top of the Longitudinal slot 14 of the faceplate 15. The locking pin 31 rests between the two, as described above Locking webs 32 of the toggle plate 7.

If the lever 30 is pivoted 90 ° counterclockwise, the rotary position marked D is reached, at which the Wing 2 can be rotated about its pivot axis. The Rotational movement is based on the linkage, not shown transfer the drive rod and the swivel bracket 13 along with the, around the bearing pin 11 engaging spring element 17 in a with respect to the longitudinal slot 14 middle position axially implemented, the locking pin 32 the area of has left two locking webs 32 so that the Locking released and an unimpeded turning of the Wing around its fishing axis is possible.

Turn lever 30 counterclockwise another 90 ° is pivoted, the tilt position marked with K is reached. The rotary movement acts as described above on the swivel bracket 13 and the spring element 17 such that this reaches the lower end of the longitudinal slot 14. The Bolt member 10 - as described above - between the locking link webs 5a and 5b on the toggle bolt plate side. When tilting, the locking member 10 is on one of the Bolt links 5a, 5b and is about the axis of Bearing pin 11 pivoted. The longitudinal slot 14 has in this area the bulges 19a and 19b, so that the Tilt the wing 2 the swivel tab on one of the Bolt link webs 5a, 5b supporting against that of the Driver 18 deformed spring element 17, wherein the the area of the spring element 17 surrounding the driver 18 is deflected and into one of the bulges 19a, 19b dips. Against the spring force of the spring element is the Wing on the lower frame corner 3.

FIG. 12 shows the so-called tbt switching sequence of the lever 30 and in Figure 13 shows the corresponding positions of the Swivel tab 13 and the spring element 17 shown. The one with V marked locking position is the above described the same.

The lever 30 from the lower closed position by 90 ° in Tilted counterclockwise is the tilt position set. The pivoting movement acts as above described on the swivel bracket 13 and the spring element 17th such that it covers the central region of the longitudinal slot 14 reached, the locking pin 31 the area of the two Locking webs 32 has left, so that the locking lifted and an unimpeded tipping of the wing he follows. The locking member 10 engages in the tilt lock plate side Bolt links 5a and 5b, which are now in the middle Area of the tilt lock plate are arranged. The Longitudinal slot 14 accordingly has in the central area Bulges 19a and 19b so that when the wing tilts 2, the swivel tab 17 with the locking member 10 on one the locking link webs 5a, 5b supporting against that of the Driver 18 deformed spring element 17 is pivoted, the area of the spring element surrounding the driver 18 17 immersed in one of the bulges 19a, 19b. The wing lies against the spring force lower frame corner 3.

Turn lever 30 counterclockwise another 90 ° pivoted, the rotational position is now reached at the wing 2 can be rotated about its pivot axis. The Swiveling movement becomes an axially acting movement implemented and the swivel bracket 13 together with the bearing pin 11 encompassing spring element 17 in a with respect to the Longitudinal slot 14 axially shifted lower position. The Bolt member 10 leaves the, the bolt link webs 5a and 5b accommodating bolt link pocket 16. Now the wing 2 freely rotatable around its axis.

LIST OF REFERENCE NUMBERS

1

tilt-lock device

2

wing

3

lock-side, lower frame corner

4

upright frame spar

5a, 5b

Locking member webs

7

Kippriegelplatte

8th

Upright wing spar on the lock side

9

lower end

10

locking member

11

pivot

12

driving rod

13

swivel plate

14

longitudinal slot

14a, 14b

longitudinal edges

15

faceplate

16

Locking member pocket

17

spring element

18

takeaway

19a, 19b

bulges

20

top end

21

middle area

22

lower end

23

outer contour

24

arched structure

241-243

Sheets

244

leg

244a, 244b

guide surfaces

25

Slit of the spring element

26

Opening for the driver

27a, 27b

curved extension of the slot

28a

rectangular cross section

28b

round cross section

28c

oval cross section

28d

L-shaped cross section

29

stiffening embedding

30

lever

31

locking pin

32

closure webs

D

rotary position

K

tilt

V

closed position

Claims (16)

1. A tilt-lock device for turn-tilt leaf windows and doors, comprising a tilt-lock plate (7) attachable to the vertical frame member (4) in the bottom corner (3) of the frame on the closure side and comprising locking-element webs (5a, 5b); a positioning bar (12); a faceplate (15); and a locking element (10) associated with the bottom corner (9) of the upright leaf member (8) on the closure side, the bottom end of the locking element (10) being seated in a rocker (13) connected at its top end to the positioning bar (12) by a pivot (11), wherein the pivot (11) of the rocker (13) extends through a slot (14) in the faceplate (15) guiding the positioning bar (12) and is releasable for limited pivoting motion relative to the faceplate (15), positioning bar (12) and tilt-lock plate (7) at least in the tilted-open operating position when the locking element (10) engages in a pocket (16) in the tilt-lock plate (7), the device also comprising a spring element (17) which exerts a restoring force on a cam disposed on the rocker (13) and tends to hold the rocker (13) in a central position, wherein the two longitudinal edges (14a, 14b) of the slot (14) are associated with respective bulges (19a, 19b) into which the spring element (17) can extend when the tilted-open operating position is set by the positioning bar (12) and the leaf (2) is swung out,
   characterised in that the spring element (17) is associated with the movable rocker (13) and is entrained in the slot (14) by the rocker (13) when the rocker (13) is axially moved by the positioning bar (12).
2. A tilt-lock device for turn-tilt leaf windows and doors according to claim 1, characterised in that the bulges (19a, 19b) on the slot (14) in the faceplate (15) are disposed at the top end (20) in the middle region (21) or at the bottom end (22) depending on the desired preset tilted-open operating position.
3. A tilt-lock device for turn-tilt leaf windows and doors according to claim 1 or 2, characterised in that the outer contour (23) of the spring element (17) in plan view has an arcuate structure (24), wherein the spring element (17) is guided for longitudinal movement in the slot (14) in the faceplate (15) via at least one arc (241, 242, 243) in the form of an arcuate extension (27a, 27b) of the arcuate structure (24).
4. A tilt-lock device for turn-tilt leaf windows and doors according to claim 3, characterised in that the pivot (11) is receivable in the rocker (13) in one of the arcuate extensions (27a, 27b) in order positively to pin the spring element (17) to the rocker (13), which is axially movable by the positioning bar (12) into the desired operating position.
5. A tilt-lock device for turn-tilt leaf windows and doors according to any of claims 1 to 4, characterised in that the cam (18) is surrounded by the spring element (17).
6. A tilt-lock device for turn-tilt leaf windows and doors according to any of claims 1 to 5, characterised in that the spring element (17) has a central slit (25).
7. A tilt-lock device for turn-tilt leaf windows and doors according to any of claims 1 to 6, characterised in that the spring element (17) along its outer contour (23) has a substantially rectangular (28a), round (28b), oval (28c) or L-shaped (28d) cross-section or combination of cross-sections.
8. A tilt-lock device for turn-tilt leaf windows and doors according to any of claims 1 to 7, characterised in that the outer contour of the spring element (17) is closed all round.
9. A tilt-lock device for turn-tilt leaf windows and doors according to any of claims 1 to 8, characterised in that the outer contour (23) of the spring element (17) is broken on one side.
10. A tilt-lock device for turn-tilt leaf windows and doors according to any of claims 1 to 9, characterised in that the spring element is made of a polymer material.
11. A tilt-lock device for turn-tilt leaf windows and doors according to any of claims 1 to 10, characterised in that the spring element (17) has embedded reinforcements (29).
12. A tilt-lock device for turn-tilt leaf windows and doors according to claim 11, characterised in that the embedded reinforcements (29) are made of aramid.
13. A tilt-lock device for turn-tilt leaf windows and doors according to claim 1 or 2, characterised in that the outer contour (23) of the spring element (17) in plan view has an arcuate open (24a) or arcuate closed structure (24b) and at least one opening (26) in operative connection with the cam (18) for tensioning the spring element (17).
14. A tilt-lock device for turn-tilt leaf windows and doors according to any of the preceding claims 1 to 13, characterised in that at least one arc (241, 242, 243) of the spring element (17) has outwardly facing guide surfaces (244a, 244b) for axially movable guidance in the slot (14) associated with the faceplate (1).
15. A tilt-lock device for turn-tilt leaf windows and doors according to any of claims 1 to 14, characterised in that the slot (14) in the faceplate (15) has a cross-section corresponding to the spring element (17), which along its outer contour (23) has a substantially rectangular (28a), round (28b), oval (28c) or L-shaped (28d) cross-section or combination of the said cross-sections.
16. A tilt-lock device for turn-tilt leaf windows and doors according to any of claims 1 to 15, characterised in that the bulges (19a, 19b) in the slot (14) in the faceplate (15) are disposed in the central region (21) or the bottom region (22).

Images