EP1176276B1 - A self latching locking structure with adjustment possibility - Google Patents

Abstract

The locking tab (15) is mounted on the frame (1) and pivots relative to it. It has two end positions. In the first, it releases the window. In the second, it rests fixedly against part of the edge (3), locking it closed. A toggle mechanism pivots the locking tab between its two positions. When snapping between these positions, the tab passes through a dead point.

Description

The invention relates to a motorized locking device for sashes of windows or doors with special properties. The inventions are used with wings movable between a closed and an open position and are further developments and / or improvements of EP 00 12 1958.3

The invention is particularly suitable as an additional lock for windows in Skylight area, the wings of which can be moved with scissors using motor drives. In particular with such wings (see e.g. document US-A-4 768 815) the wing pressure is often only applied to one or two Points of the wing flap. This is enough for a secure and tight pressure the wing in the closed position often not, especially when, as in motor-driven wings, a central lock in the wing is missing. So that is also missing the possibility of closing the sash in the closed position with sufficient sash pressure hold so that leaky windows result. Add to that such a wing can be easily pressed on by external influences, so that the protection against burglary is poor with motor-operated wings. Moreover different overlap heights of the sash profiles must be taken into account.

It is an object of the invention to further improve a locking device for sash, which can be used independently of the normal actuation of the sash as an additional device in order to lock the sash reliably in such a way that better security against burglary is obtained, in particular a more installation-friendly overturning height compensation, easier assembly and / or a more appealing visual design is sought.

This object is achieved by a locking device according to claim 1, 10 or 13 or 14 or 20 solved, which among other things an improvement in handling (assembly) and enable the setting options of a locking device.

If a U-shaped holder is provided, the locking device can be between two protruding flanges can be mounted and relieved in terms of their Rotational position can be adjusted relative to the holder (claim 10).

The setting concerns the possibility of a rollover height compensation to be provided in which a rotational position is specified which is mechanically fixed. This Rotational position affects the housing (as the locking device) and accordingly everything that is arranged in it. With this rotational position it is predetermined how far in the swung out end position - the closed position - the locking member in Direction towards the wing flap, so different heights to be able to compensate for a previous more or less large one Rotational position adjustment with subsequent mechanical fixation.

One or more can be added to a conventional actuator Additional locking devices that can be mounted on the frame are provided, that can be assembled and operated independently. By such Locking device, for large windows by several such Locking devices, a reliable wing pressure can be achieved and at the same time, the wing is reliable against external forces acting in the opening direction lock so that a high level of security against burglary is achieved.

The (hook-shaped) locking member (claim 7) is a toggle-like Actuating system between its two end positions, the toggle-type operating system in its movements between the End positions of the locking member exceeds its extension or dead center position or runs through, preferably shortly before reaching the locking end position. The Angle of rotation above the dead center or the stretched position is approximately 10 °, preferably between 10 ° and 20 °, calculated from the extended position at which the shaft axis and the two Joints of the toggle lever piece lie in a straight line (claim 8).

The toggle-type actuation system is powered by a motor independent of any other wing actuation system.

The locking device is attached as a whole to the frame and is in a corresponding housing (as a receptacle) in which the Retracts locking member when it reaches its release position, so that Locking member is covered in this position.

In order to better maintain the fixed rotational position (claim 10), elements are like an at least partially circumferential screening is provided (claim 11, 12). There is no need to store a holding plate. With the set rotational position, everyone any height of the rollover can be fine-tuned or adjusted to what practically corresponds to a continuous adjustment.

With this type of adjustment, the vast majority of commercially available Frame profiles are covered. An assembly and set-up time is greatly reduced.

Is a stop plate arranged on the wing, on which the locking member of the Toggle lever system is in the closed state, bent in that end section, which is oriented towards the locking motor, there is a further improved Burglary protection, around a profile twisting obliquely downwards and consequently like this directed forces not to break open or further spacing of the wing to let the frame lead (claim 13). The fold is based on the Inner arc of the curved (hook-shaped) locking member, and can transfer these forces via the toggle lever system into the frame, based on the already existing locking effect of the toggle lever system.

If the housing that houses the motor and the toggle system is round is designed, an optically appealing exterior is achieved (claim 14).

The new design makes it unnecessary to store the stop plate. Also it becomes unnecessary to deposit on the frame side under the Mounting plate. This also simplifies assembly and makes it easier and fewer parts need to be kept in stock.

For example, if the wing is closed by a motorized locking system the closed position is moved, its driving force is sufficient for a firm pressure of the wing mostly not, that is, the wing is at the end of the movement slightly off compared to the frame. In this position he is from the Locking element detects that by its rotational movement which is still easy protruding sash on the frame and against the seal between Press frame and sash firmly. In this position it has toggle-type actuation system already run through its extended position and is in locked this position self-locking, so that when on the toggle-like Actuating system is no longer a driving force, nevertheless the Locked position is reliably maintained, in such a way Dimensions that a tight closing of the wing as well as the blocking by external opening forces are guaranteed. The locking member can thus from its locking position by external forces only when the Deactivate the locking element.

If the locking device is driven by a motor, for example by an electric motor, a load cut-off of the motor is expediently provided, whereby the motor is de-energized after reaching the locking position. The Load cut-off takes effect when both end positions are reached.

The device can also be developed so that the positions of the (hook-shaped) Locking element can be detected electronically. Self - locking the facility in the locking position is advantageously realized by claim 2, wherein the claim 3 and 4 includes preferred versions for self-locking.

Figur 1

zeigt im Ausschnitt und in perspektivischer Ansicht eine Verriegelungseinrichtung in ihrer Verriegelungsstellung.

Figur 2

zeigt wesentliche Teile der Verriegelungseinrichtung nach Figur 1 in auseinandergezogener perspektivischer Darstellung.

Figur 3

gibt in ähnlicher Darstellung wie Figur 2 ein abgewandeltes Ausführungsbeispiel wieder.

Figur 4, Figur 5

zeigen in Stirnansicht und im Querschnitt eines Fensters mit Blendrahmen und Flügelrahmen die beiden Endstellungen eines hakenförmigen Verriegelungsgliedes der Verriegelungseinrichtung in der Ausführung nach Figur 1.

Figur 6

zeigt schematisch ein Detail der Einrichtung nach den Figuren 1, 4 und 5.

Figur 7

ist eine perspektivische Ansicht eines weiteren Ausführungsbeispiels in runder Gestaltung.

Figur 8a, Figur 8b

sind Seitenansichten der Ausführung nach Figur 7, bei unterschiedlich hohen Flügeln, Flügelrändem oder Flügelüberschlägen, deren Stärke in Richtung z dargestellt ist.

Figur 9

ist ein Ausschnitt eines Eckteils eines U-förmigen Halteprofils, wie in Figur 7 gezeigt, hier nur mit einem Blick auf einen inneren Rastbereich, zur besseren Einstellung und Beibehaltung einer vorgegebenen Drehlage des Gehäuses.

The invention is explained below with reference to schematic drawings of several execution examples .

Figure 1

shows in detail and in perspective view a locking device in its locking position.

Figure 2

shows essential parts of the locking device according to Figure 1 in an exploded perspective view.

Figure 3

shows in a representation similar to Figure 2 a modified embodiment.

Figure 4, Figure 5

show in front view and in cross section of a window with frame and casement, the two end positions of a hook-shaped locking member of the locking device in the embodiment of Figure 1.

Figure 6

shows schematically a detail of the device according to Figures 1, 4 and 5.

Figure 7

is a perspective view of another embodiment in a round design.

Figure 8a, Figure 8b

are side views of the embodiment of Figure 7, with different height wings, wing edges or wing flaps, the thickness of which is shown in the direction z.

Figure 9

is a section of a corner part of a U-shaped holding profile, as shown in Figure 7, here only with a view of an inner locking area, for better adjustment and maintaining a predetermined rotational position of the housing.

The locking device 5 is fixed as a whole to the frame 1. The whole device can by a housing, not shown here The interior of the room must be covered or included, only this hook-shaped locking member when pivoting into the swung out Locked position emerges from this housing, which is explained from Figure 7.

The locking device acts on the wing 2 via the wing flap 3 to be able to apply sufficient force without damaging the casement, can an abutment plate 4 at the corresponding contact point of the wing be attached, which is explained in more detail from Figure 8.

It is assumed that the locking device is electromotive can be actuated, as is probably the case especially with windows in the skylight area is usually the case. For this purpose, the locking device 5 has a Electric motor 6 on a shaft via a corresponding reduction gear drives on which a lever-like force introduction element 13 (see FIG. 4) is attached. The drive shaft is designated 12. For pressing and locking the wing 2 serves a hook-shaped locking member 7 or 15, which by means of a Bearing blocks 10, 10b, 10 * or 30 on the frame around one opposite the axis of the Drive shaft 12 offset, but parallel to this axis 17 inserted in one Holding piece 11 or separate arms 11 a is pivotally mounted. At a distance from the Pivot axis 17, the locking member 7.15 has a hook-shaped Locking lug 16, which with the abutment plate 4 on the sash 2nd can work together. At a distance from the pivot axis 17 and Locking nose 16, the locking member 7.15 has a pivot point 18 for the Articulation end 20 of a (bent) toggle lever 14. The other end 19 of the Toggle lever 14 is at 22 at the free end of the lever-like Force introduction element 13 articulated. The parts 13, 14 and 15/7 thus form one toggle-type actuation system 8, in which an actuation force over the Electric motor 6 and its shaft 12 can be initiated via an engagement 21, 21 a what force as the closing and locking force of the hook-shaped Locking member 7 on reaching the locking position (Figure 5) Casement 2 is transmitted.

The hook-shaped locking member 7 or 15 has on its back, d. H. on the side facing away from the locking lug 16 between the articulation points 17 and 18 an open-edged recess 25. This is designed and arranged that when moving to the release position, the lever-like Immerse force introduction element 13 with its end fastened on shaft 12 can, as can best be seen from FIG. 4, the. in the release position Articulation points 17 and 18 and the drive shaft 12 practically on a common Line can come to rest.

It can also be seen from FIGS. 4 and 7 that the hook-shaped locking member 7 in the release position is almost completely immersed in the outline of the electric motor 6, so that the device can be easily accommodated in a small housing, wherein in the release position, the locking member is practically covered in the housing is included.

Figure 4 also shows between the frame and sash 2 in the area of Roll over 3 a crack. The size of this gap is made up of the Thickness of a seal, not shown, and a slight protrusion of the Wing edge at the end of the closing movement by the movement system of the Wing. To close the sash in a sealing and burglar-proof closed position bring, the locking device is actuated, the shaft 12 that Force introduction element 13 in Figure 4 pivots clockwise. On the The toggle lever 14 is the hook-shaped locking member 7 around its fixed Swivel axis 17 also pivoted clockwise. The recess 25 moves away from the shaft 12. The articulated connection 19, 22 between Force application element 13 and toggle lever 14 migrates to an angle of more than 180 ° and shortly before the locking position (Figure 5) exceeds the stretching or Dead center position of the toggle-type actuation system 8. The dead center position is in Figure 5 by a dashed line T between the shaft 12 and the Articulated connection reproduced 18/20, while the relative position of the relevant joints in the locking position by the in Figure 5 excellent joints or shaft 12, 18/20, 19/22 is reproduced. The Angle α above the stretched position is approximately 10 °, preferably between 10 ° and 20 °.

The locking position of the hook-shaped locking member 7 is determined in that the free end of the lever-shaped force introduction element 13 creates a stop surface 26 of the hook-shaped locking member 7, as this Figure 5 shows. This stop surface is in the area of the recess 25, and indeed near the recess edge on the side of the pivot axis 17. Die The more precise location is shown again schematically in FIG. 6. So that's it Locking device in its locking position automatically against opening locked, even if the electric motor 6 of the toggle-type actuation system 8 at Reaching the locking position, for example by an electronic one Load cut-off, automatically switched off and thus de-energized. On consideration of Figure 5 it can be seen that with external forces acting in the opening direction on the Wing 2 has a force in the direction of the pivoting movement of the locking member takes effect. This force could theoretically in the stop surface 26 in Act opening direction of rotation on the lever-shaped force introduction element 13 and swing this over the dead center position, which then leads to easy opening of the wing. In fact, however, this external force presses over it Locking member 7.15 the articulation point 18/20 on the toggle lever 14, which in turn Locking sense over the hinge point 19,22, on the lever-shaped Force application element 13 acts and so effective this element and thus that whole toggle-type actuation system automatically in the shown Locking position holds or locks, and with greater force, the larger the are external forces.

FIG. 3 shows a modified exemplary embodiment, in which two Knee levers 14a are provided, which are designed on both sides of the as a simple lever Force introduction element 13a are arranged. With the previously described Embodiment is provided only one toggle lever, while that Force introduction element 13, is formed with two arms and the toggle lever between his arms. Otherwise, the device according to FIG. 3 operates in the same way Way, like that of Figure 1. For this reason, the same reference numerals are below The addition of the letter "a" has been used.

The locking device can, as from the previous description and the drawing shows, only unlock when the motor 6 in the opening direction in Is put into operation. In addition to a high pressure force for sealing Locking the flap of the wing also provides great security against break-ins.

FIG. 7 illustrates an installed state of a locking device 5 provided with a round housing 6a * and which has the toggle lever mechanism described from the previous figures. Unless a different embodiment is made in the previous figures, the information described above regarding the structure, the mode of operation and the functional elements of the locking device, in particular the mode of operation of the locking member 7 or 15, which is to be named 15 below, apply.

A U-shaped holder can be seen from FIG. 7, which has an elongated base part 10h and has two protruding flanges 10g and 10f. Between these flanges, whose distance corresponds essentially to the length of the housing 6a *, the Locked locking device, for which purpose clamping elements 40, shown here as Screw elements, serve. The plate 4 shown in FIG. 1 is also shown with a bent upper end section 4a, which will be explained further below.

In the open state, which is shown in FIG. 7, when opening the symbolically shown wing (through the replacement plate 4) whose upper end portion 4a Pass locking member 15 past, so the wing can be opened. Is in the closed state or in the not yet fully closed state the motor activated, the locking member 15 moves out of the housing 6a * and sets the abutment plate 4, as seen from Figures 8a, 8b in a side view can be seen. The maximum pivoting position of the locking member 15 ensures the necessary contact pressure or for a previously used pull-in movement to stretch the wing with its flap 3 on the frame or to this to press.

Different heights of rollovers 3, shown in two strengths z1, z2 of FIGS. 8a, 8b, can be absorbed by a fine-step change in the rotational position γ of the motor. In the extended state, the locking member 15 is rotated against the plate 4 and the holding means 40 is tightened on the right and left on the flange 10f, 10g, in order to fix the rotational position of the housing 6a *. The flanges pull the body against the inside and there is a force, form or frictional connection, so that the closed position is fixed with respect to its rotational position.

At least one, preferably both, inner sides of the flanges 10f, 10g can provide support provided with a profile, in particular a fine grid 50 to press into the front of the drive body or with there existing similar profiles or grids a locking position not only to be achieved by friction, but also by positive locking.

This results in an adjustment range in the z direction for adaptation to practical all available rollover heights between approx. 12 mm and 22 mm. A deposit the holding plate 10, which here is the elongated base plate of the holder 10 *, is omitted, an adjustment by depositing the abutment plate 4 is also omitted.

The adjustment is made solely by specifying a clamping position with regard to their Rotational position and its fixation, to adjust the swung out end position of the Locking member to the height or strength of the rollover.

Conveniently, the base plate 10 can be provided with pins 10z in order to fit in To engage openings on the frame and to be better positioned. The Profiling, rastering or toothing described can be ring-shaped; it can be present at least in sections, or it can be entirely extensive in order to a receiving opening 51 for the shaft of the clamping screws 40 is laid around.

The described details of the ring-shaped profiling or grid 50 can be seen in FIG. 9 , the holder 10 * shown there also being shown in perspective in FIG. 7.

The housing 6a * can be clamped with clamping flanges. Alternatively, you can the clamping flange can be replaced by a screw with a large washer 6b. In any case, the adjustment is practically stepless, possibly specified by the fine-step screening or profiling.

An improvement in security against burglary results from the training of Abutment plate 4. This has an upper section 4a that extends from the mounting surface is directed away at the sash, shown here upwards and sideways. He comes thereby in the extended position of the locking member 15 in its Inner curve 15c to lie, so that a twisting obliquely downwards Sash profile, when external forces act on the locking member can be supported. Figures 8a, 8b show the relative position in the Locking position, whereby the folded and away from the mounting surface extending portion 4a over the nose portion 16 of the locking member 15th thinks over and these two form a kind of interlocking.

Rollover height differences are preset with a pre-setting of the rotational position γ automatically balanced. Larger differences, for example from 2 mm, can be without Underlay the base plate 10 and the one to be arranged above the rollover Holder 10 * for the motor 6 in the housing 6a * can be compensated.

A locking device is proposed for motorized between closing and Openable movable wing, with a swiveling one Locking member (7.15), which can be mounted on the frame (1) so that it is in a Release position releases the wing (2) and in a closed position on the flap (3) of the wing (2), locking it, rests. To compensate for a variable The height or strength of a rollover (3) on the wing is the locking device in clamped a U-shaped holder (10 *; 10f, 10g) and the clamping position (γ) as predefined and fixable rotational position freely selectable or changeable, for adaptation the pivoted end position of the locking member (7.15) to the height or Strength (z1, z2) of the rollover (3).

A toggle-type actuation system (8; 13, 14) can (additionally) be pivoted of the locking member (7) between a release position and one Locking position may be provided, the toggle lever system (8) at Swinging out of the locking member (7) from its first end position into its second end position passes through a stretched or dead center position.

Claims (21)

1. Locking device for leaves which can be moved by a motor between an open and closed position, comprising a pivotable locking member (7, 15) which can be fitted to the door or window frame (1) in such a way that

   (a) in a release position, it releases the leaf (2); and

   (b) in a closed position, it rests on the overlapping edge part (3) of the leaf (2), locking it,

   and comprising a toggle lever-like actuating system (8; 13, 14) for pivoting the locking member (7) between the release position and the closed or locking position, wherein the toggle lever system (8) passes through an extended or dead centre position when the locking member (7) pivots from its first end position into its second end position.
2. Locking device according to claim 1, wherein the toggle lever-like actuating system (8) has a lever-like first force introduction element (13) which is arranged in a non-rotatable manner on an actuating shaft (12) which, in particular, can be motor-driven, and wherein the first lever element (13) in the locking position rests (26) with contact on the locking member (7).
3. Locking device according to claim 2, wherein the force introduction element (13) is coupled in terms of drive to the locking member (7) via at least one toggle lever piece (14) and, in the locking position, a region of the force introduction element (13), to which the toggle lever piece (14) is articulated, rests on a stop face (26) of the locking member (7) limiting the pivotal movement of the force introduction element (13) in the locking direction, in order to

   (a) transmit external forces acting on the leaf (2) in the opening direction onto the force introduction element (13) via the toggle lever piece (14) towards the stop face (26) and to block pivoting of the force introduction element (13) in the direction of the release position;

   (b) to convert the external forces acting on the leaf (2) in the opening direction into a closing force; or

   (c) to transmit them onto the lever element (13) via the contact point (26) and convert them via the toggle lever piece (14) into a locking pressure of the locking member.
4. Locking device according to claim 2, wherein the locking member (7), between its bearing point (17) and the articulation point (18) of the toggle lever (14), has a recess (25), into which an end section of the force introduction element (13) arranged on the actuating shaft can dip, wherein a stop face (26) is arranged, in particular in the region of the recess (25).
5. Locking device according to claim 4, characterised in that the stop face (26) inevitably stops a pivoting movement of the locking element (7) in the direction of the locking position via a stop on reaching a rotary position shortly behind the extended or dead centre position of the toggle lever-like actuating system (8).
6. Locking device according to claim 4 or 5, characterised in that the recess (25) and the toggle lever-like actuating system (8) are designed in such a way that in the release position, the actuating shaft (12) lies in the recess (25).
7. Locking device according to claim 1, wherein the locking member (7) is hammer head-shaped or hook-shaped in design.
8. Locking device according to claim 1, wherein the pivoted out locking position lies at an angle (α) greater than 5°, in particular between 5°, 10° or 20°, behind the dead centre or extended position.
9. Locking device according to claim 1, wherein a pivot angle of the locking member (7) can be caused by a rotary movement of a lever (13) of the system (8) constituting more than 90°.
10. Device for a locking device according to any one of the preceding claims, wherein to compensate a changeable height or thickness of an overlapping edge part (3) on the leaf, a U-shaped holder (10*; 10f, 10g) is provided into which a receiver (6a*) can be fixed for the locking device, and the clamping position (y) is freely selectable as a predetermined and fixable rotary position or can be changed, to adapt a pivoted out end position of a locking member (7, 15) of the locking device to the height or thickness (z1, z2) of the edge (3).
11. Device according to claim 10, wherein the rotary position of the receiver (6a*) is substantially steplessly changeable in the fixing position, wherein a mechanical pressure is exerted in the longitudinal direction of a housing (6a*) as a receiver for the motor by fitting elements (40), in particular an extensively oriented clamping or latching region (50) is arranged on at least one of inwardly pointing sides of the flanges (10f, 10g) of the U-holder (10*), for closely stepped change and the same construction of latching of the rotary position (γ) of the receiver (6a*) relative to the holder (10*).
12. Device according to claim 11, wherein the extensively oriented clamping or latching region (50) extends to at least one peripheral section, in particular is designed as at least one annular section.
13. Device for a locking device according to any one of the preceding claims, with an abutment plate (4) for attachment to the leaf frame in the region of a stop of the locking member (15), which plate (4) has an end section (4a) pointing to the locking device and directed away from a fitting face on the leaf frame, in particular extending obliquely folded from the abutment plate (4), in order to come to rest behind and above a nose (16) of the locking member (15) in a locking position of the locking device.
14. Device according to any one of the preceding claims, wherein a housing (6a*) surrounds the motor (6a) which is substantially round in design, with two end faces which are suitable for fixing in the holder (10*).
15. Locking device according to claim 1 or 10, in which the locking member (7) can be rotated about a stationary shaft (17), and in particular during movement into the locking position in a first direction (A).
16. Locking device according to claim 1 or 10, wherein the locking member (7), during movement into or out of the locking position rotates in the same direction of rotation as the elements (13, 14) of the toggle lever system (8) according to claim 1.
17. Device according to claim 1, wherein the locking element (15) can be fitted to rest on the door or window frame (30, 10) without openings on the door or window frame (1) being required for actuation.
18. Device according to claim 1, wherein the toggle lever system (8) can be motor-driven (6), in particular via a motor (6) mounted together with the pivotable locking member (7, 15) on a base (30, 10), such as the U-shaped holder (10*) according to claim 10.
19. Locking device according to claim 1, wherein a drive (6) actuating the locking bar member (7, 15) is arranged on the same side of the locking device on which the locking member (15) is also arranged.
20. Locking device, wherein a force introduction element (13) is coupled in terms of drive to a locking member (15) via at least one toggle lever piece (14) and, in a closed position, a region of the force introduction element (13) on which the toggle lever piece (14) is articulated (18), rests on a stop face (26) of the locking member (15) limiting the pivotal movement of the force introduction element (13) in the locking direction, in order to

    (a) transmit external forces acting on the leaf (2) in the opening direction onto the force introduction element (13) via the toggle lever piece (14) towards the stop face (26) and to block pivoting of the force introduction element (13) in the direction of the release position;

    (b) to convert the external faces acting on the leaf (2) in the opening direction into a closing force; or

    (c) to transmit them onto the lever element (13) via the contact point (26) and convert them via the toggle lever piece (14) into a locking pressure of the locking member.
21. Device according to claim 1 or 20, wherein the two positions are limited or fixed as end positions by a particular shaping of the locking member (7, 15).

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