EP3963158A1

EP3963158A1 - Closure for a window, a door, or the like

Info

Publication number: EP3963158A1
Application number: EP20737399.4A
Authority: EP
Inventors: Gregor SCHORNSTEINER; Josef Hölzl
Original assignee: Maco Technologie GmbH
Current assignee: Maco Technologie GmbH
Priority date: 2019-07-09
Filing date: 2020-07-02
Publication date: 2022-03-09
Anticipated expiration: 2040-07-02
Also published as: CN114080483A; WO2021004875A1; EP3963158B1; DE102019118535A1; CN114080483B

Abstract

The invention relates to a closure (10) for a window, a door, or the like. The window, the door, or the like has a frame and a leaf which can be moved relative to the frame. The closure (10) comprises a main part (12) which is designed to be secured to the frame or to the leaf; a closure element (14) which is rotatably mounted on the main part (12) and which defines a retaining seat (16) for a latch element secured to the leaf or to the frame and can be moved between a release position that releases the latch element in an opening direction (R) of the leaf and a blocking position that blocks the latch element in the opening direction (R); and a latch slide (21) which is guided in the main part (12) such that it can be moved between a locking position and an unlocking position and which is biased by at least one spring in the direction of the locking position; wherein in the locking position, the latch slide (21) prevents the closure element (14) from moving out of the blocking position into the release position, and in the unlocking position, the latch slide allows the closure element (14) to move between the blocking position and the release position; and between the locking position and the unlocking position the latch slide (21) has a daytime position, in which the latch slide can be deflected in the direction of the unlocking position as a result of a movement of the closure element (14) between the blocking position and the release position, thereby overcoming the spring force of the spring.

Description

LATCH FOR A WINDOW, DOOR OR THE SAME

The invention relates to a closure for a window, a door or the like, the window, the door or the like having a frame and a sash which is movable relative to the frame. The closure comprises a base body designed to be attached to the frame or sash and a closure element rotatably mounted on the base body, which defines a holding receptacle for a locking element fastened to the sash or the frame and which between a locking element that releases the locking element in an opening direction of the sash Release position and a locking position blocking the locking element in the opening direction is movable. Furthermore, the lock comprises a bolt slide, which is slidably guided between a locking division and an unlocking position on the base body and is biased by at least one spring in the direction of its locking division. Furthermore, it is provided with the lock that the locking slide in the locking division prevents movement of the locking element from the blocking position into its release position and in its unlocking position allows a movement of the locking element between the blocking position and the release position.

Such locks are generally used to lock or unlock windows, doors, gates or the like. Depending on the application, the base body used as the housing for the individual mechanical components of the lock can be provided for attachment to the frame and the locking element for attachment to the wing or vice versa. In particular, the base body can be designed for receiving and fastening in a fitting groove of the frame or of the sash. According to one embodiment of the invention, the locking element can be a simple pin, in particular a roller pin. In particular, the pin can have a cylindrical cross-section in order to enable particularly easy sliding into the holding receptacle of the closure element. In order to increase the protection against unacceptable levering of the lock, the pin can preferably be designed as a mushroom pin. The closure element can be pivotable between its release position and its blocking position, for example about a pivot axis running transversely to the opening direction. This enables a particularly simple construction.

When the lock is installed, the locking element attached to the sash or frame enters the holding receptacle of the locking element in the course of a closing movement of the sash, so that the locking element is pushed into its blocking position in the course of the closing movement of the sash by the locking element, in which it is then is secured by the bolt slide in such a way that the locking element cannot return to its release position. Because the closure element is automatically moved into its blocking position by closing the sash and reopening of the sash is already prevented in this state of the closure, the sash is secured against undesired opening immediately after the closing process, even if the user just gave it a slight "push".

In order to be able to open the sash again, the bolt slide must be actively transferred back into its unlocked position, which can be done for example by operating a handle such as a door handle or an actuator such as an electric motor.

In the case of house doors in apartment buildings or in the case of doors in shops, however, it may be desirable to use the security function of the Rie- at least partially override the gel slide. If, for example, a certain compressive or tensile force is exerted on the sash, the sash should be able to be opened after overcoming a certain folding resistance, without first having to actively move the locking slide into its unlocked position and thus actively release the locking element. Nevertheless, the door should be secured against unintentional opening such as gusts of wind. If, on the other hand, a sufficiently large force is exerted on the sash, the locking element should automatically move from its blocking position back into its release position, overcoming the folding resistance, so that the sash can be opened without having to actively move the locking slide back into its unlocking position. This functionality is referred to here as a day function or as a conditional backup.

The invention is therefore based on the object of further developing a lock of the type described at the outset so that it enables the sash to be opened if necessary without having to actively guide the locking slide into its unlocking position beforehand as part of an upstream actuation step.

This object is achieved according to a first aspect with a lock with the features of claim 1 and in particular in that the locking slide between the locking division and the unlocking position has an intermediate position, referred to here as the day position, in which the locking slide between the locking element as a result of a movement the blocking position and the release position can be deflected by overcoming the spring force of the spring in the direction of the locking position Ent. If, for example, a relatively small force is exerted on the locking element via the wing due to a gust of wind, the locking element is still held in its blocking position in the desired manner by the locking slide, provided that the force resulting from the gust of wind does not overcome the holding resistance resulting from the spring force of the spring. If, on the other hand, a sufficiently large force is exerted on the wing, this is transmitted via the locking element of the lock to the bolt slide, so that it is deflected against the spring force of the spring in the direction of its unlocking position and thus releases the locking element. The locking element can thus automatically move from its blocking position into its release position without the bolt slide having to be specifically moved in the direction of its unlocking position in an upstream actuation step.

So if only relatively small forces act on the wing in the daytime position of the bolt slide, a movement of the locking element from the blocking position to the release position is prevented and the wing is thus held in its closed position. If, on the other hand, relatively large forces act on the sash in the daytime position of the bolt slide, this means that the locking element can move from a blocking position into its release position, whereby the bolt slide is deflected in the direction of its unlocked position by overcoming the spring force of the spring can.

In the daytime position of the bolt slide, the locking element is held in its blocking position in the desired manner to prevent unintentional opening of the sash, whereas the locking element can be transferred into its free position with correspondingly large opening forces acting on the sash without having to do this beforehand Having to unlock the bolt slide. According to a second aspect of the invention, a closure for a window, a door or the like is proposed, the window, the door or the like having a frame and a sash which is movable relative to the frame. This closure also comprises a base body designed to be attached to the frame or the sash and a closure element rotatably mounted on the base body, which defines a flap receptacle for a locking element attached to the sash or the frame and which is between a release pin that releases the locking element in an opening direction of the sash ment and a blocking position blocking the locking element in the opening direction is movable. Furthermore, the lock comprises a locking slide, wel cher between a locking division and an unlocking position slidably guided on the base body and is biased by at least one spring in the direction of its Sperrstei development. Furthermore, it is provided for the lock that the locking slide in the locking division prevents the locking element from moving from the blocking position to its release position and, in its unlocking position, allows the locking element to move between the blocking position and the release position. In the case of the lock according to this second aspect, too, it can be provided, if required, that the locking slide has an intermediate position, here called the day position, between the locking division and the unlocking position, in which the locking slide as a result of a movement of the locking element between the blocking position and the Release position by overcoming the spring force of the spring in the direction of the Entsperrstel development can be deflected.

Preferred embodiments of the invention according to the first and second aspects will now be discussed below. Further embodiments can also emerge from the dependent claims, the description of the figures and the drawings. To adjust the pawl, for example, a drive-effective coupled handle such as a door handle or the like can be provided, by actuating the locking carriage between its respective positions.

In order to make the operation of the bolt slide more user-friendly, however, it can be provided according to one embodiment that the lock comprises a motor arranged on the base body, which is coupled to the bolt slide in such a way that it approaches the unlocked position depending on the direction of rotation of the motor or move away from it. The user does not have to apply the force to move the bolt slide himself. In particular, no operation of a twist grip or the like is required. It is thus possible to design a window or door provided with a lock according to the invention without an operating element and thus without a handle. Such windows and doors are therefore particularly visually appealing. In addition, the assembly of such a lock is relatively simple, since the motor is integrated into the lock and therefore no mechanical coupling of the bolt slide with a hardware gear is required.

In principle, the motor can be designed as a linear motor. According to a more direct embodiment, however, it can be provided that the motor has a rotationally drivable output shaft, which is operatively coupled to a spindle drive that converts the rotational movement of the output shaft of the motor into a displacement movement of the bolt slide. The spindle drive is preferably designed to be self-locking so that the motor can be switched off as soon as the locking element has reached the desired position after a motor-driven movement phase. According to a further embodiment, the spindle drive can comprise a drive spindle driven by the Mo tor and a spindle nut which carries the Rie gelschlitten and is thus operatively coupled to the locking slide in order to bring about the desired displacement movement.

In particular, it can be provided here that the locking slide is coupled to the spindle nut in such a way that the locking slide in its day position can be deflected relative to the spindle nut, overcoming the spring force of the spring in the direction of the unlocking position. The bolt slide is therefore not rigidly coupled to the spindle nut; Rather, the locking slide can move rela tively to the spindle nut by a certain amount in the axial direction of the drive spindle.

For example, the deflection of the locking slide relative to the spindle nut or vice versa can be limited by two stops spaced from one another in the axial direction of the drive spindle. So moves the Spindelmut ter as a result of actuation of the drive spindle by the motor relative to the bolt slide, the movement of the spindle nut is only transferred to the Rie gel slide when the respective stop is reached. Only from this point in time the movement of the spindle nut is transmitted to the bolt slide. In the daytime position of the bolt slide, however, the bolt slide does not rest against the stop that prevents the bolt slide from moving in the direction of its unlocked position or to which the spindle nut abuts to move the bolt slide into its locking division, otherwise the bolt slide could not be deflected in the direction of its unlocking te. Rather, the stop in question does not have any effect in the daytime position of the locking slide so that the locking slide can be deflected in the desired manner in the direction of the unlocking position. Although the spring through which the bolt slide is biased in the direction of its Sperrstei development, on the one hand on a bolt slide and on the other hand on egg nem part that is immovable relative to the base body, or be supported on a housed part; According to a preferred embodiment, however, it can be provided that the at least one spring is supported on the one hand on the locking slide and on the other hand on the spindle nut. As a result, the effective length of the at least one spring can be kept small, since the Fe moves together with the assembly consisting of the spindle nut and locking slide. The length of the spring is thus independent of the position of the construction unit of bolt slide and spindle nut with respect to a part fixed to the housing. The effective spring length can thus be kept small if the at least one spring is supported on the one hand on the locking slide and on the other hand on the spindle nut.

According to a further embodiment, the closure element can have a closed position, the blocking position being between the closed position and the release position. In the locking division, the bolt slide allows the closure element to move between its blocking position and its closed position. The closure element can therefore be moved from its release position beyond the blocking position into the closed position, in which the wing is completely fixed to the frame due to the engagement of the locking element in the holding receptacle of the closure element and firmly against this or a seal provided thereon can be braced. So if the wing in the blocking position of the closure element is secured with play on the frame, which allows a certain gap ventilation, the wing is, on the other hand, firmly clamped in the closed position of the closure element to the frame or a you provided along the same device, as shown Safety reasons or in favor of heat protection may be desirable. According to a further embodiment, the locking slide can have a locking position, the locking pitch being between the locking position and the unlocking position. The bolt slide can therefore be moved from its unlocked position beyond its locking division into the locking position. In this case, it can preferably be provided that the locking slide and the locking element cooperate in a drivingly effective manner in such a way that the locking element is pushed out of its locking position into the locking position when the locking slide is moved. So if the bolt slide is transferred from its locking pitch to the locking position by means of the Spindelan drive, this also means that the locking element moves into its closed position and is secured in this position due to the self-locking of the spindle drive.

It is true that a certain reduction can already be achieved with the spindle drive, so that the closure can get by with a comparatively weak motor; However, in order to be able to reduce the torque produced by the motor even more, a rotatably mounted gear element such as an at least partially toothed gear or a two-armed lever can be provided on the base body according to a white direct embodiment, via which the bolt slide and the locking element interact as a driving force. If, for example, the gear element is a two-armed lever, the bolt slide engages the longer lever arm and the locking element engages the shorter lever arm, whereby the reduction can be reduced even further by the spindle drive, so that even smaller or weaker ones Motors can be used.

According to a further embodiment, the locking slide and the locking element can be driven in interaction via the gear element in such a way that the locking slide is in its day position as a result of a movement. movement of the closure element between its blocking position and its release position can be deflected in the direction of the unlocking position by overcoming the spring force. Any movement of the locking element is thus transmitted to the locking slide via the gear element so that it is deflected in the direction of its unlocking position when the locking element is moved back and forth between its blocking position and its unlocking position.

In addition or as an alternative to this, the bolt slide and the locking element can interact with driving action via the gear element in such a way that the locking element assumes the closed position when the bolt slide moves out of its locking pitch into its locking position. The movement of the locking slide is thus transmitted via the gear element to the locking element, so that the locking element is pushed into its closed position when the locking slide is moved from its locking pitch into its locking position.

According to yet another embodiment, it can be provided that the locking slide has a locking cam which engages behind a slide cam formed on the locking element or on the gear element in the locking pitch of the locking slide in such a way that a movement of the locking element from its blocking position into its release position is prevented . The locking cam of the slide can have a sliding surface that is at least partially convexly curved and / or designed as a ramp, which, in the daytime position of the locking slide, is in contact with a counter-sliding surface formed on the sliding cam, which is also at least partially convexly curved and / or designed as a ramp can. When the closure element moves out of its blocking position into its release position, the counter-sliding surface slides along the sliding surface while overcoming the spring force of the spring in the direction of the unlocking position, which is due to the at least section-wise convex curvature and / or the ramp-like shape of the sliding surfaces leads to a deflection of the locking slide in the direction of its unlocking position. Due to the at least partially convex and / or ram pen-like shape of the two cams, a kind of snap action is achieved when the sliding cam slides along the locking cam. The locking element is thus in the daytime position of the bolt slide able to snap between its release position and its blocking position, whereby it is secured sled conditionally both in the release position and in the blocking position by the bolt.

According to a further embodiment, the lock can have a coupling lever via which the locking element is effectively coupled to the locking slide, the coupling lever both on the locking slide, in particular on its locking cam, and on the gear element, in particular on its sliding cam, is hinged.

Since, on the one hand, the gear element is rotatably mounted on the base body and, on the other hand, the coupling lever is articulated to both the locking carriage and the gear element, a change in the position of the articulation point of the coupling lever on the locking carriage results in the direction of the coupling lever being changed the direction of movement or with respect to the axial direction of the drive spindle changes. When the Riegelschlit least from its locking pitch in its locking position, the measured transversely to the direction of movement of the bolt slide distance between the two articulation points to which the coupling lever is hinged to the bolt slide and the gear element Ge. With increasing axial displacement of the articulation point of the coupling lever on the locking slide, the coupling lever is thus deflected and thus the gear element and, via this, the locking element is pivoted. The coupling lever is therefore a toggle lever, since its leverage changes with increasing deflection. Therefore, if the locking slide is moved into its locking position, the coupling lever is increasingly deflected, so that with increasing deflection of the coupling lever, greater and greater forces or torques act on the gear element and thus on the closure element. In order to be able to close the wing or to be able to pull the closure element into its closed position, no excessively powerful motors are required due to the explained toggle mechanism in order to be able to apply the required torque to close the wing.

So that any shifting movements of the locking slide via the coupling lever of the locking slide are not necessarily transmitted to the locking element, according to a further embodiment the articulation point at which the coupling lever is hinged to the locking cam can have a slot guide extending in the direction of the sliding path of the locking slide and a slot guide therein Include guided pivot pin, so that the locking slide can perform an idle stroke movement within certain limits that is not transmitted to the coupling lever and thus to the locking element.

Starting from its unlocked position, the locking slide can thus be moved into its daytime position without the locking element being pivoted from its release position into its blocking position at the same time.

Equally, the locking slide can be moved from its day position in the direction of its locking pitch without the position of the locking element changing. Because of the elongated hole guide, the locking element rather remains in its blocking position when the bolt slide is moved from its day position in the direction of its locking division.

As already explained above, according to one embodiment, the lock can be operated by a motor, so that no handle for operating the Losing is needed. In order to still be able to operate the lock in the event of a power failure or a failure of the motor, the lock can be locked and unlocked according to a further embodiment via an emergency operating mechanism. For this purpose, external toothing can be provided on the drive spindle and / or on the output shaft of the motor, the base body having at least one opening through which the external toothing is accessible from outside the base body for emergency actuation of the lock.

For the emergency operation, an emergency opening tool can be provided which has a shaft which can be inserted through the opening into the base body and which forms a drive worm which engages the external toothing in question in a driving manner. The spindle drive can thus be operated manually using the emergency opening tool, so that the lock can still be operated even in the event of a power failure or a failure of the motor.

According to a further embodiment, the closure can have a return spring, by means of which the closure element is pretensioned in the direction of the release position. If the bolt slide is moved into its unlocked position and thus releases the locking element, this can automatically move into its release position due to the pretensioning effect of the spring in question.

According to a further embodiment of the invention, the motor can be designed as an electric motor, wherein an electrical energy store, in particular a battery or accumulator arrangement, can be provided on the base body to supply the electric motor with energy. A lock designed in this way is to a certain extent self-sufficient and, in principle, does not require any connection to other drive components. Assembly is therefore particularly easy. According to a further embodiment, an induction coil arranged on the base body can be provided in addition or as an alternative to the electrical energy store for supplying energy to the electric motor, via which the closure can be inductively coupled to an energy source for energy supply. Additionally or alternatively, the closure can be inductively coupled to a signal source via the induction coil for data transmission. The lock can thus be mounted anywhere on a wing, since no wiring is required for the power supply or for data transmission.

According to yet another embodiment, in addition or as an alternative to the coupling lever, a ramp section can be formed on the locking slide and / or on either the locking element or the gear element, through whose effect the locking element is activated when the locking slide is moved from its locking position into its locking position into the closed position is urged. For example, the locking cam of the locking slide can form the ramp section in question, so that it deflects the sliding cam of the gear element when the locking slide is moved from its locking pitch into its locking position. As a result of the deflection of the sliding cam, the gear element and thus the locking element are pivoted so that it can be tensioned into its closed position by the wedge effect of the ramp section.

The invention will now be described in the following purely by way of example with reference to the drawings, in which:

Fig. 1 shows a plan view of a closure according to the invention according to one embodiment, the connection Closing element in the release position and the Riegelschlit th in the unlocked position;

FIG. 2 shows the locking element according to FIG. 1, but the locking slide is in the waiting position;

3 shows the closure element of FIG. 1, but with the closure element in the blocking position and the locking slide in a temporary daytime position;

Fig. 4 shows the closure according to Fig. 1, but with the

The locking element is in the blocking position and the bolt slide is in the locking division;

Fig. 5 shows the closure according to Fig. 1, but with the

The locking element is in the closed position and the bolt slide is in the locking position;

Fig. 6 shows the closure of Figure 1 in both a Seitenan view and a front view;

FIG. 7 shows a section through the closure according to FIG

Area of the external toothing for the emergency opening function;

Fig. 8 shows a development of the closure according to Figures 1 to 7 with a toggle lever mechanism for Kraftbe impact of the closure element, the closure element is in the blocking position; and FIG. 9 shows the closure according to FIG. 8, however the

Closing element is in the closed position.

Fig. 1 shows a plan view of a closure 10 according to the invention, wel cher has an elongated base body 12 which receives the individual compo nents of the closure 10 and thus serves as a type of housing. In particular, the base body 12 has two opposite side walls 13 running in the longitudinal direction of the base body 12 (see also FIG. 6), between which the individual components of the closure 10, which are described in more detail below, are arranged. As can be seen in particular from FIG. 6, the base body 12 has a relatively small width and depth and can thus be mounted in a fitting groove egg nes by means of the lock 10 to be secured wing.

As can again be seen from the illustration in FIG. 1, a claw-shaped closure element 14 is mounted on the base body 12 so as to be pivotable about a pivot axis 15. The closure element 15 has a receptacle 16 in the form of a groove open on one side, the width of which is dimensioned such that a cylindrical locking element (not shown) fits into it, which is provided for fastening to the sash of the window or door. In principle, however, it could also be provided that the base body 12 is designed for attachment to the sash and the locking element for attachment to the frame.

On the side opposite the holding receptacle 16, the closure element 14 has a toothing 17 which meshes with a toothing 18 which is formed on a gear element 19 which is pivotably mounted on the base body 12 about a pivot axis 11. On the side opposite the toothing 18, the gear element 19 forms a projection 20, also referred to here as a slide cam, the function of which will be discussed in greater detail below. Furthermore, the lock 10 has a locking slide 21 which can be moved in the longitudinal direction of the same and which forms a locking cam 22 on the side facing the gear element 19, which interacts with the sliding cam 20, as will also be explained in more detail below.

Furthermore, the lock 10 has an electric motor 23 which is arranged on the base body 12 and which is coupled to the locking slide 21 in such a way that it can move in different directions depending on the direction of rotation of the motor 23. More precisely, the motor 23 drives a drive spindle 24 of a spindle drive 25, with a spindle nut 26 arranged thereon being moved in the longitudinal direction of the drive spindle 24 in a manner known per se by the rotation of the drive spindle 24. The locking slide 21 is supported on the spindle nut 26 so that it can be moved in different directions together with the spindle nut 26 depending on the direction of rotation of the drive spindle 24.

To supply energy to the electric motor 23, the closure 10 has an energy store, such as a battery, arranged under a cover 27. In addition or as an alternative to this, the closure 10 can also have an induction coil 39 (only indicated schematically in FIG. 1) also located under the cover 27, via which the closure 10 can be inductively coupled to an energy source to supply the electric motor 23 with energy. The power supply of the electric motor 23 could also be wired.

As can be seen from FIG. 1, the locking slide 21 is supported on the spindle nut 26 via two springs 28, so that the locking slide 21 can be deflected against the spring force of the springs 28 with the spindle nut 26 stationary. On the other hand, the spindle nut 26 be moved relative to the same when the bolt slide 21 is stationary. However, the relative mobility between spindle nut 26 and bolt slide 21 is limited by two stops (not visible) spaced apart in the axial direction of the drive spindle, so that the bolt slide 21 can be taken along by the spindle nut 26 after reaching the respective stop.

In the embodiment shown here, the two springs 28 are based on the one hand on the locking slide 21 and on the other hand on the spindle nut 26; alternatively, however, it is also possible that the springs 28 are supported on the one hand on the locking slide 21 and on the other hand on a part fixed to the housing.

Now that some essential components of the closure 10 according to the invention have been explained previously, the mode of operation of the closure 10 according to the invention will be discussed below.

1 shows a position of the closure 10 in which the closure element 14 is in its release position F, in which the claw-shaped section extends through an opening 29 in the housing wall 13. In this position, for example, a locking element located on the sash of a window to be secured can slide into the folding receptacle 16, whereupon the locking element 14 is pivoted in the direction of the locking position B of the locking element 14 shown in FIG. 4 with continued closing movement of the sash in the clockwise direction.

Since the closure element 14 and the gear element 19 mesh with one another via the two tooth systems 17, 18, the gear element 19 is pivoted counterclockwise. This pivoting movement of the locking selements 14 and the gear element 19 is possible in the position shown in FIG. 1 because the locking slide 21 is in its unlocking position E, which it assumes when it was pulled in the direction of the electric motor 23 by means of the spindle drive 25. In this unlocked position E, the sliding cam 20 of the gear element 19 cannot collide with the locking cam 22 of the locking slide 21, which is why the locking element 14 can be freely pivoted in the manner described above.

The closure element 14 is pretensioned in the direction of its release position F by means of a return spring (not shown here), this spring being able to act either directly on the closure element 14 or on the gear element 19 and thus indirectly on the closure element 14.

If the closure element 14 has been pivoted from the illustrated release position F into the blocking position B illustrated in FIG. 4 in accordance with the explanations given above in relation to FIG. 1, a movement of the closure element 14 back into its release position F can be prevented by the bolt slide 21 as shown in FIG. In Fig. 4, the locking slide 21 is in its locking pitch S, into which it is pushed elas by means of the springs 28 table. In this locking pitch S, the locking cam 22 of the locking slide 21 engages behind the sliding cam 20 of the Getriebele element 19 in such a way that a movement of the locking element 14 from its blocking position B shown in FIG. 4 back into its release position F is prevented.

It would be possible to monitor the reaching of the blocking position B of the locking element 14 with the help of sensors, so that after the blocking position B has been detected, the locking slide 21 is moved from the unlocking position E shown in FIG. 1 to the in FIG of Fig. 4 shown Locking division can be transferred, in which the locking cam 22 engages behind the sliding cam 20.

As an alternative to this, however, it is also possible to transfer the locking slide 21 in advance by energizing the motor 23 by means of the spindle drive 25 into the waiting position W shown in FIG. 2, in which the locking cam 22 is in contact with a convexly curved sliding surface section of the sliding cam 20 at the end stands or touches it, the locking slide 21 being elastically biased against the sliding cam 20 in this waiting position W by means of the springs 28.

If the locking element 14 is pivoted from the illustrated release position F into its blocking position B according to FIG. 4 in this waiting position W of the locking slide 21, the sliding cam 20 with its convexly curved counter-sliding surface 30 slides along the end face of the locking cam 22, whereby the locking slide 21 in the direction of its unlocked position E against the tension force of the springs 28 is elastically deflected before. As soon as the locking element 14 has reached its blocking position B and thereby the sliding cam 20 has moved counterclockwise past the locking cam 22, the locking slide 21 is pushed by the biasing force of the springs 28 beyond its position W to its locking pitch S. , in which the locking cam 22 engages behind the sliding cam 20 according to FIG. 4, whereby the locking element 14 is secured in the blocking position B shown.

In order to be able to secure the locking element 14 in its blocking position B against low opening forces as part of the day function, whereas the locking element 19 should be able to be pivoted back into its release position F in the case of larger opening forces starting from the blocking position B, the bolt slide between the in the locking graduation S shown in FIG. 4 and the unlocking position E shown in FIG. 1 have an intermediate position, referred to here as the day position T, as shown in FIG. In this In daytime position T, the locking slide 21 is in the same relative position with respect to the spindle nut 26 as in the locking division (FIG. 4); however, the bolt slide 21 was pulled back a little in the direction of its unlocked position E by means of the spindle drive 25 or the spindle nut 26, as can be seen from a comparison of the respective positions of the bolt slide 21 according to FIGS. 3 and 4.

In the daytime position according to FIG. 3, the sliding cam 20 rests on a sliding surface 31 of the locking cam 22, this sliding surface 31 forming a ramp or being inclined like a ramp in such a way that the locking slide 21 counter to the spring force of the springs 28 in the direction of its unlocking position E. is deflected when the slide cam 20 is pivoted due to a pivoting movement of the locking element 14 counterclockwise in the direction of its release position F in the clockwise direction. If the opening force on the locking element 14 is sufficiently large, this leads to the locking slide 21 being deflected against the folding resistance of the springs 28 in the direction of its unlocking position E and thus releasing the movement of the locking element 14 and the locking element 19. The slide cam 20 moves partially past the locking cam 22 in the clockwise direction and slides along the end face of the same.

During this movement sequence, the gear element 19 initially experiences a counterclockwise torque from the locking slide 21; Due to the convex shape of the counter-sliding surface 30 of the sliding cam 20, this counterclockwise torque decreases with increasing rotation of the gear element 19 in the clockwise direction until it then increases again, but then in a clockwise direction. This variation in the torque that the gear element 19 experiences through the locking slide 21 due to the spring preload by the springs 28 leads to the locking element 14 snapping over, so that the locking element 14 in the day position T of the locking mechanism gel slide 21 has two defined end positions, namely the release position F on the one hand and the blocking position B on the other hand.

Since the sliding cam 20 in the release position F of the locking element 14 rests with its counter-sliding surface 30 on the face of the locking cam 22, the locking element 14 can then be pivoted back against the resistance applied by the springs 28 back into its blocking position B, in which it is in the Day position T of the bolt slide 21 is conditionally secured. In the day position T of the locking slide 21, this can thus be deflected in the direction of its unlocking position E due to a movement of the locking element 14 against the spring force of the springs 28.

In order to prevent the wing from popping open again in the daytime position T of the bolt slide 21 after it has been thrown with momentum, it can be provided that in the daytime position T of the bolt slide 21 the position of the locking element 14 is monitored by means of a sensor. If the sensor detects that the locking element 14, starting from its release position F, has been pivoted into its blocking position B, the locking slide 21 can then be temporarily moved by means of the spindle drive 25 in the direction of its locking pitch S into a temporary folded position in which it can pass the slide cam 20 of the transmission element 19 cannot be pushed back towards its locking position E. This temporary collapse position is only approached briefly in order to prevent the sash from jumping open. The bolt slide 21 can then be moved back to its daytime position T.

The blocking position B of the closure element 14 is angularly oriented so that the sash does not lie tightly against the frame, so that a certain gap ventilation is still possible. However, starting from the release position F, the closure element 14 can move beyond the blocking position B into a closed position SS are pivoted according to FIG. 5 so as to clamp the sash tightly to the frame.

For this purpose, the locking slide 21, starting from the locking graduation S shown in FIG. 4, is moved by means of the spindle drive 25 further in the direction of the transmission element 19 or the closure element 14. First, the spindle nut 26 is moved in the direction of the locking slide 21 until the spindle nut 26 abuts the locking slide 21, so that the spindle nut 26 is moved out of its locking pitch S in the direction of its locking position V with continued movement of the spindle nut 26. During this movement sequence, the slide cam 20 rides on the sliding surface 31 of the locking cam 22, with the result that the gear element 19 is pivoted further counterclockwise ver. The closure element 14 is thus pivoted clockwise into its closed position SS, whereby the sash is pulled firmly against the frame. Since the distance between the point at which the sliding surface 31 of the locking cam 22 is in contact with the sliding cam 20, and the Schwenkach se 11 of the gear element 19 is greater than the distance between the

Pivot axis 11 of the gear element 19 and the power transmission point between tween the gears 17, 18, the gear element 19 acts as a reduction gear. However, the gear element 19 can equally be replaced by a two-armed lever with lever arms of different lengths.

If the sash is to be opened again, the locking slide 21 is at least temporarily moved back into its unlocking position E shown in FIG. 1, in which the locking slide 21 allows the locking element 14 to be pushed either onto the locking element 14 or onto the gear element 19 acting return spring can swing back into its release position F.

In the embodiment described above, the closure element 14 is pulled in the direction of its closed position SS in that the slide cam 20 is deflected by the ramp-shaped sliding surface 31 of the locking cam 22 when the locking slide 21 is moved in the direction of its locking position V.

As an alternative to this, the gear element 19 can be coupled to the bolt slide 21 via a toggle mechanism, which develops its effect to deflect the locking element 14 in the direction of its closed position SS when the bolt slide 21 is moved into its locking position V. This toggle mechanism comprises according to FIGS. 8 and 9 a coupling lever 32 which is hinged on the one hand to the locking slide 21, in particular on its locking cam 22, and on the other hand to the gear element 19, in particular on its sliding cam 20. The articulation point at which the coupling lever 32 is articulated to the bolt slide 21 is thereby formed by a pivot pin 33 which is slidably mounted in a slot 34 formed in the bolt slide 21. This slot guide 33, 34 allows it in the Tagstel ment T of the bolt slide 21 a deflection of the same in the direction of its Ent locking position E, as is required, among other things, to realize the day function.

If the spindle nut 26 is moved from the position shown in FIG. 8 in the direction of the bolt slide 21, it comes into contact with the bolt slide 21, whereupon the spindle nut 26 takes it along. With continued movement of the spindle nut 26 then the hinge pin 23 comes into contact with the end of the elongated hole 34, which faces the spindle nut 26, whereupon with continued movement of the spindle nut 26 of the coupling lever 32 around its articulation point on the gear element 19 clockwise with the As a result, the dimension measured transversely to the direction of movement of the locking slide 21 between the two articulation points of the coupling lever 32 increases. This in turn has the consequence that the gear element 19 is pivoted counterclockwise and thus the closure selement 14 is pivoted clockwise in the direction of its closed position SS, see also FIG. 9 in this regard.

In order to be able to actuate the closure 10 in spite of the self-locking property of the spindle drive 25 in the event of a power failure or in the event of a possible failure of the motor 23, the closure 10 according to the invention has an emergency actuation function, see in particular FIG. 7.Fierzu is the drive spindle 24 of accessible outside the housing 12, so that it can be actuated with the aid of a corresponding emergency opening tool 36.

As can be seen in particular from FIG. 6, for this purpose an opening 35 is formed in the base body 12 through which an emergency opening tool 36 can be introduced into the base body 12. In order to be able to rotate the drive spindle 24 with the aid of this emergency opening tool 36, an external toothing 37 is provided on the drive spindle 24. The emergency opening tool 36 has a drive worm 38 which can be inserted through the opening 35 into the interior of the housing, so that by meshing engagement of the drive worm 38 with the toothing 37 by rotating the emergency opening tool 36, the drive spindle 24 starts rotating and thus the lock 10 is actuated even in the event of a power failure can be.

List of reference symbols

10 clasp

1 1 swivel axis from 19

12 base body / housing

13 side walls

14 closure element

15 swivel axis 14

16 Holding fixture

17 toothing of 14

18 toothing of 19

19 gear element

20 sliding cams from 19

21 bolt slide

22 sliding cams on 21

23 engine

24 drive spindle

25 spindle drive

26 spindle nut

27 cover

28 springs

29 Opening in the housing wall

30 (counter) sliding surface of 20

31 sliding surface 22

32 coupling levers

33 pivot pins

34 elongated hole

35 opening

36 Emergency opening tool

37 external toothing 38 Drive worm

39 induction coil

E Unlocked position S Locking division

T day position

V locking position

F release position SS closed position B blocking position W waiting position

R opening direction

Claims

Expectations

1. A closure (10) for a window, a door or the like, the window, the door or the like having a frame and a sash movable with respect to the frame, the closure comprising:

a base body (12) designed for attachment to the frame or to the wing;

a closure element (14) rotatably mounted on the base body (12), which defines a folding receptacle (16) for a locking element fastened to the sash or the frame and which is between a release position (F) that releases the locking element in an opening direction (R) of the sash ) and a blocking position (B) blocking the locking element in the opening direction (R) is movable; and

a locking slide (21) which between a locking pitch (S) and an unlocking position (E) slidably in the base body (12) leads and is biased by at least one spring (28) in the direction of its locking pitch (S);

wherein the locking slide (21) in the locking division (S) prevents movement of the locking element (14) from the blocking position (B) to the release position (F) and in the unlocking position (E) prevents movement of the locking element (14) between the Blocking position (B) and the release position (F) allows; and

wherein the locking slide (21) between the locking division (S) and the unlocking position (E) has a day position (T) in which it overcomes as a result of a movement of the locking element (14) between the blocking position (B) and the release position (F) the spring force of the spring (28) can be deflected in the direction of the unlocked position (E).

2. Closure according to claim 1,

wherein the lock (10) comprises a motor (23) which is arranged on the base body (12) and which is coupled to the locking slide (21) in such a way that it approaches the unlocking position (E) depending on the direction of rotation of the motor (23) moves away from it.

3. Closure according to claim 1 or 2,

wherein the closure (10) comprises a motor (23) which is arranged on the base body (12) and has an output shaft which is operatively coupled to a spindle drive (25) which converts the rotary movement of the output shaft of the motor (23) into a displacement movement of the bolt slide ( 21) implements.

4. Closure according to claim 3,

wherein the spindle drive (25) comprises a drive spindle (24) driven by the motor (23) and a spindle nut (26) which carries the Riegelschlit (21), it being provided in particular that the Riegelschlit (21) such is coupled with the spindle nut (26) that the bolt slide (21) in its day position (T) relative to the spindle nut (26) under overcoming the spring force of the spring (28) in the direction of the unlocking position (E) is deflectable.

5. Closure according to claim 4,

wherein the deflection of the locking slide (21) relative to the spindle nut (26) is limited by two stops spaced from one another in the axial direction of the drive spindle (24).

6. Closure according to one of the preceding claims,

wherein the at least one spring (28), by which the locking slide (21) is pretensioned in the direction of its locking pitch (S), on the one hand on the locking slide (21) and on the other hand either on a part which is relative to the base body (12) is immobile, or is based on the spindle nut (26).

7. Closure according to one of the preceding claims,

wherein the locking element (14) has a closed position (SS), where the blocking position (B) is between the closed position (SS) and the release position (F), the locking slide (21) in its locking division (S) a movement of the Closing element (14) between its blocking position (B) and its closed position (SS) allows.

8. Closure according to claim 7,

wherein the bolt slide has a locking position (V), the locking pitch (S) being between the locking position (V) and the unlocking position (E), the locking slide (21) and the locking element (14) acting together in a driving manner so that the locking element (14) when the bolt slide (21) moves out of its locking pitch (S) into its locking position (V), the closed position (SS) assumes.

9. Closure according to one of the preceding claims,

wherein a rotatably mounted gear element (19), in particular an at least partially toothed gear wheel or a lever, is provided on the base body (12), via which the bolt slide (21) and the locking element (14) interact in a driving manner, in particular such that the locking slide (21) in its day position (T) as a result of a movement of the locking element between its blocking Position (B) and its release position (T) can be deflected by overcoming the spring force of the spring (28) in the direction of the unlocking position (E) and / or that the locking element (14) is out of its locking pitch when the locking slide (21) moves (S) in its locking position (V) occupies the closed position (SS).

10. Closure according to one of the preceding claims,

wherein the locking slide (21) has a locking cam (22) which engages behind a slide cam (20) formed on the locking element (14) or on the gear element (19) in the locking pitch (S) of the locking slide (21) in such a way that a Movement of the closure element (14) from its blocking position (B) into its release position (F) is prevented.

11. Closure according to claim 10,

wherein the locking cam (22) of the locking slide (21) forms a sliding surface (31) which, in the day position (T) of the locking slide (21), is in contact with a counter-sliding surface (30) formed on the sliding cam (20), with a Movement of the closure element (14) from its blocking position (B) into its release position (F) slides the counter-sliding surface (30) on the sliding surface (31) while overcoming the spring force of the spring (28).

12. Closure according to claim 10 or 11,

wherein a coupling lever (32) is provided, via which the locking element (14) is effectively coupled to the locking slide (21), where the coupling lever (32) both on the locking slide (21), in particular on its locking cam (22), as well as on the gear element (19), in particular on its slide cam (20).

13. Closure according to claim 12,

wherein the transverse to the direction of movement of the locking carriage (21) ne distance between the two articulation points, at which the coupling lever (32) is articulated on the locking carriage (21) and on the gear element (19), when the locking carriage (21) moves out of the Locking pitch (S) in the locking position (V) increases.

14. Closure according to claim 12 or 13,

wherein the articulation point at which the coupling lever (32) is articulated on the locking slide (21) comprises a slot guide (34) extending in the direction of the displacement path of the locking slide (21) and a pivot pin (33) guided therein.

15. Closure according to claim at least one of claims 9 to 14,

wherein a ramp section is formed on the locking slide (21) and / or on either the locking element (14) or the gear element (19), through the action of which the locking element (14) moves out of its position when the locking slide (21) moves Locking division (S) in its locking position (V) the closed position (SS) assumes.

16. Closure according to at least one of claims 2 to 15,

wherein an external toothing (37) is provided on the drive spindle (24) and / or on the output shaft of the motor (23), the base body (12) having at least one opening (35) through which the external toothing (37) for emergency actuation of the lock (10) is accessible from outside the base body (12), provision being made in particular that an emergency opening tool (36) with a shaft extends through the opening (35) for emergency actuation, a drive worm on the shaft (38) is formed, in which the external toothing (37) engages effectively a drive.

17. Closure according to at least one of the preceding claims,

wherein a return spring is provided, by means of which the closure element (14) is pretensioned in the direction of the release position (F).

18. Closure according to at least one of the preceding claims,

wherein the motor (23) is designed as an electric motor, an electrical energy storage device, in particular a battery or accumulator arrangement, being arranged on the base body (12) for the energy supply of the electric motor (23).

19. Closure according to at least one of the preceding claims,

wherein the closure (10) comprises an induction coil (39) arranged on the base body (12), via which the closure (10) can be inductively coupled to an energy source for energy supply and / or to a signal source for data transmission.