EP0708218A1 - Apparatus and method for effecting the opening and closing movement of a tilting window - Google Patents

Abstract

The opening and closing mechanism includes gearing (13) with i>1 fitting outside on the frame (4) in the closing fitment area. A slide carriage (15) supporting the entrainment member (16) is guided displaceable in the gearing housing (14). The displacement movement of the slide carriage is convertible by associated converters into a rotary movement of the gearing drive pinion (19). A gearing output pinion (17) is connectable with a drive apart of the closing fitment. The converter is formed by a cogged gear rod (18) on the slide carriage meshing with the drive pinion (19) of the gearing.

Description

The invention relates to a device for executing the closing and opening process of a tilting window consisting of a frame and casement or a tilting door, with an at least partially installed in the rebate circumferential surface of the casement, which can be actuated by means of a locking device arranged on the casement frame for locking and unlocking the Sash frame opposite the window frame, with a drive that can be fixedly attached to the window frame, which has a positively movable actuator which can be coupled to a driver assigned to the drive rod system and protrudes from the window frame, and which has a control curve along which the driver can be guided by the actuator, the Control curve has at least one curve section for driving the sash frame at least one curve section for driving the drive rod system.

A device of the aforementioned type is known from DE-OS 43 21 099.

The known device has the disadvantage that a towing element is required to couple the driver to the drive rod system, which engages the driver designed as a pin and can be coupled to the actuator of the drive. The towing element comprises a guide rail arranged on the sash frame, which is parallel to the one embedded in the sash frame Drive rod system runs as well as a slide that can be moved along the guide rail. The known device is provided with actuatable coupling means in order to be able to couple the coupling pin to the actuator or to uncouple it.

Uncoupling is required, for example, if the window in question is to be unlocked and opened by manually actuating the closing fitting.

The forces to be communicated to the blind frame to lock and unlock a window sash relative to the window frame are not insignificant. The drive pin must consequently be able to act on the towing element accordingly so that the drive rod system is moved. Appropriate dimensioning of the components of the device is therefore necessary. However, due to the relatively small available installation space on the window and due to a desired visual impression of the window, which would be significantly disturbed by larger-sized attachments, the requirements for correspondingly small-sized components cannot be met, or can hardly be met. In addition, economic aspects regarding the marketing of the facility are of crucial importance, because the facilities should not only have the appropriate appearance due to their small dimensions, but also the requirements of cost-effective production with the highest possible quality and performance.

The invention has for its object to improve the known device so that it can be provided with the smallest possible dimensions, high performance and yet inexpensive.

This object is achieved according to the invention by an attachment to the outside of the casement in the area of the locking fitting Gearbox with a transmission ratio i> 1, in the gearbox housing of which a carriage carrying the driver is displaceably guided, the displacement path of which can be converted into a rotary movement of a gearbox drive pinion by means of an associated transfer means, a gearbox output pinion being connectable to a drive part of the locking fitting .

The transmission provided according to the invention with a transmission ratio i> 1 is capable of converting the power output from a relatively small dimensioned drive into the considerable force necessary for the actuation of the drive rod system. A strong, resistant towing device is also not required, so that the overall device has small dimensions.

The generation of the necessary force for the actuation of the drive rod system with a small drive can be achieved in that the path of the control curve of the drive for the entrainment of the drive rod system is given a predetermined length which is about the direct path length of the drive rod system between its locking and unlocking position the factor of the gear ratio of the transmission is multiplied. With a suitable design of the gearbox, a relatively weak and therefore advantageously small drive can be sufficient to move the drive rod system.

Attaching the gear unit to the sash frame in the area of the locking fitting has the advantage that the means of the locking fitting already installed in the sash frame from the outset, which act on the drive rod system, can be used by coupling it to the output side of the gear unit. This makes it easy to retrofit windows with the device.

The fastening of the drive to the window frame also advantageously allows for easy retrofitting of built-in windows. Since the area between the edge of the overlap of the casement profile and the opposite reveal surface of the building opening on the frame is often only a relatively narrow strip area, the drive must also have relatively small dimensions, since it must not be wider than that on the frame when the frame is closed Window still free strip area on which he should sit. With regard to its length, however, the drive can advantageously be designed freely, so that the longer displacement paths of the actuator located in the drive, which are required due to the transmission connected downstream of the drive, can be easily implemented in terms of construction.

The drive can be installed in a flat, elongated rectangular housing which is attached to the free strip surface of the frame and which thus hardly disturbs the visual appearance of a window equipped with the device.

In the housing of the gear unit that can be attached to the casement, the required longer displacement paths can also be easily achieved by providing a guideway for a slide that is coupled on the one hand via the driver to the actuator of the drive, and on the other hand via a transfer means to the integrated gear train works for the translation. The carriage thus executes exactly the same movement as the actuator, but on a movement path that runs parallel to the movement path of the actuator. The linear movement of the slide is converted by the provided transfer means into a rotary movement which is introduced into the gear train, so that corresponding forces can be tapped on the output side for the actuation of the drive parts of the closing fitting, which are used to move the drive rod system.

The transfer means can be, for example, a toothing located on the slide, with which an associated drive pinion of the gear meshes. A toothed rack forming the toothing can also be attached or molded onto the slide.

The transfer means can also comprise a traction drive, the traction means of which is moved by the carriage. Relatively slip-free chains or toothed belts are preferably used as the traction means.

The gear housing to be fastened to the frame also advantageously has relatively small dimensions. It can also be designed optically advantageous in that it is designed as a flat box which contains all the built-in parts, namely the slide, the transfer means and the gear train of the actual transmission.

In order to keep the assembly costs as low as possible, it is provided that the housings are composed of half-shells. This makes it possible to manufacture the half-shells from suitable plastic at low cost, for example by injection molding or pressing. Bearings for the gear pinion and guides for the slide can be easily molded on.

Retrofitting using means of the closing fitting already present on the sash frame, which act on the drive rod system, is particularly simple and unproblematic with the device according to the invention in that the drive part is a shaft which extends through the gearbox housing and is mounted therein and carries the output pinion. on the first free end of a handle can be plugged and the second free end by positive engagement in an associated receptacle of the built in the casement Lock fitting is rotatably connected to the lock fitting.

The gearbox housing can be easily attached to the sash frame, for example with appropriate screwing means. Since the gearbox housing consists of half shells, it can be easily disassembled and then reassembled. Then all that remains is to connect the output pinion to the drive part of the lock fitting, for example a square stub shaft held in the casement. The handle or actuating handle that normally sits on the square stub shaft of a locking fitting is removed before the gearbox housing is attached and can then be replaced if necessary on a corresponding extension pin that protrudes from the gearbox housing. Structural interventions of any kind in the window frame or in the casement frame are not necessary, as a result of which the device according to the invention is particularly suitable for retrofitting windows and doors.

The control curve of the drive is formed by a slot having a corresponding course in at least one wall of the drive housing. The opposite side walls of the drive housing preferably each have a curve designed as a slot, as a result of which the drive can be placed on the frame both on the left and on the right from the center of the window.

The section of the control curve for driving the drive rod system extends essentially parallel to the longitudinal axis of the elongated drive housing. In the upper area of the drive housing, the section for driving the drive rod system merges into the section for driving the casement and runs approximately at right angles to it. The section for taking the sash, its tilting movement causes to open or close the window, can also be slightly curved, which ensures a maximum tightening of the casement against the elastic window seals when closing the window at the beginning of locking.

The drive itself is reduced to a few components and is therefore very compact. This is achieved in that the drive comprises an electric motor and a spindle driven thereby, which, when the drive housing is mounted on the frame, runs approximately parallel to the respectively assigned immediately adjacent section of the drive rod system on the casement, the actuator comprising a lock nut seated on the spindle and a traction means attached at one end to the lock nut, the other end of which can be connected to the driver.

The device according to the invention is mounted on the frame and on the casement at the height of the locking fitting located on the casement. At this height, the angle between the sash and frame is already relatively wide with the sash fully tilted. The mounting position in the area of the lock fitting has the advantage that the tilting forces resulting from the weight of the sash frame to be moved can be overcome relatively easily by a drive, because the lever arm of the acting moment is relatively long. The disadvantage of this, however, is that the section of the control curve for the entrainment of the casement must also be as long as the spreading distance of the casement from the frame at the height of the closing fitting, which would lead to disproportionate dimensions of the drive housing which disturb the overall visual impression.

In order to avoid this disadvantage and still be able to bridge further spreading angles of the casement with the driver, a is in the device according to the invention Traction means formed connection between the lock nut of the drive and the driver for the casement provided.

The traction means can be completely retracted into the drive housing, the driver, which can be connected at its end, being moved along the control curve of the drive in order to bring about the tilting of the casement or its locking and unlocking with the frame.

So that the actually flexible traction means can also transmit compressive forces to the driver, for example when unlocking and tipping the sash, it is provided that the drive housing follows the course of the control curve, due to the corresponding slot at least on one side for the engagement of the Carrier has open guide shaft, in which the traction means is accommodated in a longitudinally displaceable manner.

The guide shaft comprises the normally flexible traction means in such a way that it cannot buckle when subjected to compressive forces.

So that the lock nut of the drive remains connectable to the in the guide shaft, which is not accessible because the encapsulated traction means remains connected, a shaft wall of the guide shaft is slotted and the lock nut has a foot protruding into the guide shaft through the slotted shaft wall, to which the traction means is articulated .

The driving pin located on the sash frame, which is held on a slide that is displaceably guided in the gearbox housing and projects with a free end into the control curve and thus also into the guide shaft congruent with the control curve, can be coupled to the traction means. So that wide tilting movements of the casement are possible, the Driver pin can travel long distances despite the limitation due to the length of the cam sections. This is ensured by the fact that one end of the guide shaft and of the slot forming the control cam opens into an opening in the wall of the drive housing facing the casement.

The driver pin can thus leave the control curve via the opening or can also be re-introduced into the control curve, because the traction means coupled to one end of the driving pin emerges from the open drive housing or the traction device enters the drive via the opening of the guide shaft - housing retracted.

In order that the traction means extends freely to the window sash in a predetermined path direction as it enters and exits the guide shaft, a guide element in contact with the traction means is provided in the mouth region of the guide shaft.

The guide member is preferably designed as a leaf spring, which can be held clamped with a spring end on the inner wall of the guide shaft and is so curved or kinked that the other free spring end presses from above onto the traction means passing under the leaf spring and thereby the intended extension of the traction means directs.

If the sash is tilted so far that the end of the traction device coupled to the driver pin has emerged from the drive housing, or has left the control curve and the guide shaft, then it is hardly possible to apply compressive forces to a flexible traction device, because the stepped-free, stepped out device The end area of the flexible traction device tends to buckle.

A steel belt can also be used as a traction device. A steel strip is flexible on both sides, but can advantageously also transmit compressive forces of up to a certain magnitude before it buckles.

In order to optimize the guidance of a steel strip in the guide shaft, it is provided that the steel strip is equipped with sliding elements guided in the guide shaft. Each sliding element can be spherical. For the application in question here, however, cylindrical or barrel-shaped bodies are particularly advantageously suitable as sliding elements.

Each sliding element has an opening which is adapted approximately to the dimensions of the cross section of the steel strip, which makes it possible to form a plurality of sliding elements on the traction means.

The traction means can also be a flexible link strand, the links of which are made up of sliding elements arranged in a row. The elements of a link strand forming sliding elements can be lined up on at least one reinforcement strand, wherein the reinforcement strand can either be a steel band or a steel cable. Of course, several steel cables can also be used next to each other, i.e. running parallel to each other, as a reinforcement strand.

The production of a link strand formed from sliding elements can be simplified in that each sliding element consists of halves having connecting elements which can be brought into operative connection and between which at least one reinforcing strand extends.

The sliding elements, which form the link strand that can be used as a traction device, can be made of plastic, for example in the injection molding process.

All plastics that have already proven themselves in storage technology and that have low coefficients of friction can be used to manufacture the sliding elements. Of course, the guide shaft could also be lined with appropriate plastics.

It is also possible to manufacture the link strand formed from sliding elements in one piece from plastic, with at least one of the reinforcement strands being integrated into the one-piece link strand made of plastic, which is easily possible, for example, by injection during the manufacture of the one-piece link strand in an injection molding process.

A link strand formed from sliding elements can also consist of two strand halves which have connecting elements which can be brought into operative connection and which are simply connected to one another, for example latched, with the interposition of a reinforcing strand.

With particular advantage, an end link of the link strand made of plastic can also be designed as a lock nut. The link strand and the lock nut thus form a single component which can be produced inexpensively by the injection molding process.

In order to avoid buckling due to compressive forces, it is advantageously provided that the traction means is a link strand which is only flexible in one direction. For example, the traction means can be a roller link chain, the link plates of which have stops blocking the deflection in a predetermined direction.

The roller link chain is flexible in one direction, namely in the direction in which it extends around the transition region between the control curve sections or guide shaft sections which are approximately at right angles to one another is directed. If the free, exited area of the roller link chain sags, this is blocked by the stops that then come into operation. The roller link chain becomes rigid so that it is able to transmit compressive forces.

A structurally simple design, which ensures these properties of the roller link chain, is characterized in that the blocking stops on a chain link of each chain link are molded on the end, projecting to a chain side, and have nose flanks on the adjacent sides of the chain, which are so inclined run that, when the chain is straight, there is a wedge-shaped gap widening towards the tip of the noses between opposing flanks of the nose, which gap is closed even with little sag of the chain.

Despite its protruding stops, the roller link chain can run into or out of the guide shaft without any problems, since a shaft side of the guide shaft has a guide groove for the stops.

In order to reduce the frictional forces between the walls of the guide shaft and the traction means or the roller link chain in the deflection area, it is provided that the guide shaft in the deflection area of the chain has a sliding roller mounted in the drive housing.

The traction means can also be a roller link chain which is flexible on both sides, the link plates of which have locks which limit the deflection beyond a predetermined amount.

A strand of the traction means extending with a predetermined deflection between the drive and the sash frame has the Advantage that a lead or lag of the drive can be compensated for by the bending radius of the traction device course, which is determined by the function of the limiting locks.

Each lock can comprise at least one approximately pin-shaped projection located on the inner chain link and an associated approximately bean-shaped recess located on the chain outer link plate, the projection protruding into the recess and striking the ends of the recess when the roller link chain is deflected in a certain manner.

The function of the locks to compensate for the forward or follow-up is further improved in that each lock is equipped with a spring-loaded locking member which holds the projection in the struck position in the recess and can thus be released again in the event of opposite bending forces. The locking member can, for example, be a clamping spring, into which the projection is pressed in the end position of the deflection.

• Fig. 1 eine schematische Ansicht eines mit der Einrichtung ausgerüsteten Fensters,
• Fig. 2 eine schematische Seitenansicht des Antriebs der Einrichtung im Längsschnitt,
• Fig. 3 eine Teilansicht des Antriebs im Schnitt entlang der Linie III-III in Fig. 2,
• Fig. 4 einen schematischen Längsschnitt des am Flügelrahmen anbringbaren Getriebe-Gehäuses mit einer abgeänderten Ausführung des Umsetzmittels,
• Fig. 5 eine Seitenansicht des Getriebe-Gehäuses im Schnitt entlang der Linie V-V in Fig. 4,
• Fig. 6 eine Ansicht des Schnittes entlang der Linie VI-VI in Fig. 4,
• Fig. 7 eine schematische Vorderansicht des Getriebe-Gehäuses im Längsschnitt mit einer Ausführung des Umsetzmittels gemäß Fig. 1,
• Fig. 8 einen schematischen Querschnitt des Fensters mit Blendrahmen-Profil und Flügelrahmen-Profil, an welches in der Höhe des Schließbeschlags das Getriebe-Gehäuse gemäß Fig. 7 angesetzt ist, etwa in der Ebene der Schnittlinie VIII-VIII in Fig. 7 gesehen,
• Fig. 9 eine Ansicht des Getriebe-Gehäuses in einem Schnitt entlang der Linie IX-IX in Fig. 7.
• Fig. 10 eine Teilansicht des Kopfbereiches des Antriebs im schematischen Längsschnitt mit einer anderen Ausführungsform des Zugmittel,
• Fig. 11 eine Teilansicht des Zugmittels entsprechend Fig. 10 im schematischen Längsschnitt,
• Fig. 12 eine schematische Seitenansicht einer Innenlasche des Zugmittels entsprechend der Ausführung gemäß Fig. 10 und 11,
• Fig. 13 eine Ansicht der Innenlasche entsprechend Fig. 12, mit einem lösbaren Verriegelungsorgan,
• Fig. 14 eine schematische Draufsicht auf einen Teil eines Zugmittels gemäß einer weiteren Ausführungsform,
• Fig. 15 einen Schnitt durch das Zugmittel entlang der Linie XV-XV in Fig. 14,
• Fig. 16 eine schematische Seitenansicht des Kopfbereiches des Antriebs im Längsschnitt mit einem einteilig aus Kunststoff mit angeformter Schloßmutter gefertigten Zugmittel,
• Fig. 17 eine schematische Seitenansicht des Kopfbereiches des Antriebs der Einrichtung im Längsschnitt mit einer weiteren Ausführungsform für das Zugmittel und
• Fig. 18 einen Schnitt durch den Antrieb entlang der Line XVII-XVII in Fig. 16.

Embodiments of the invention, from which further inventive features result, are shown in the drawing. Show it:

• 1 is a schematic view of a window equipped with the device,
• 2 is a schematic side view of the drive of the device in longitudinal section,
• 3 is a partial view of the drive in section along the line III-III in Fig. 2,
• 4 shows a schematic longitudinal section of the gear housing which can be attached to the casement frame, with a modified version of the transfer means,
• 5 is a side view of the transmission housing in section along the line VV in Fig. 4,
• 6 is a view of the section along the line VI-VI in Fig. 4,
• 7 is a schematic front view of the transmission housing in longitudinal section with an embodiment of the transfer means according to FIG. 1,
• 8 is a schematic cross section of the window with a window frame profile and a sash profile, to which the gear housing according to FIG. 7 is attached at the height of the locking fitting, seen approximately in the plane of section line VIII-VIII in FIG. 7,
• 9 is a view of the transmission housing in a section along the line IX-IX in FIG. 7.
• 10 is a partial view of the head region of the drive in a schematic longitudinal section with another embodiment of the traction means,
• 11 is a partial view of the traction device corresponding to FIG. 10 in a schematic longitudinal section,
• 12 is a schematic side view of an inner tab of the traction device corresponding to the embodiment according to FIGS. 10 and 11,
• 13 is a view of the inner tab corresponding to FIG. 12, with a releasable locking member,
• 14 is a schematic plan view of part of a traction device according to a further embodiment,
• 15 shows a section through the traction means along the line XV-XV in FIG. 14,
• 16 is a schematic side view of the head region of the drive in longitudinal section with a traction means made in one piece from plastic with a molded lock nut,
• Fig. 17 is a schematic side view of the head region of the drive of the device in longitudinal section with a further embodiment for the traction means and
• 18 shows a section through the drive along the line XVII-XVII in FIG. 16.

In Fig. 1, a view of a window is shown schematically. The window frame 1 is anchored in a building opening (not shown). The movable casement 4 of the window is held on the frame by means of turn-tilt fittings 2 and 3.

The drive rod system 5 partially laid on the circumferential fold peripheral surface of the sash frame 4 comprises locking cams 7 arranged on a longitudinally displaceable steel strip 6 and corresponding locking pockets 8 which are arranged on the fixed frame. In the embodiment shown here, the steel band 6 is displaced such that the locking cam 7 is out of engagement with the locking pocket 8, so that the sash 4 can be tilted about the horizontal tilt axis of the tilt fitting 2.

On the frame 4, a drive 9 is fixed, in the housing 10, an actuator 11 is guided movable up and down. For this purpose, a motor, not shown, acts on a spindle 12 indicated here, on which the actuator 11 sits like a lock nut.

A gear 13 is fastened to the sash frame 4 in the area of the closing fitting (not shown here) for actuating the drive rod system 5, in whose gear housing 14 a slide 15 is guided so that it can move up and down.

The slide carries a driver 16 in the form of a pin 17. The pin is held in a longitudinally displaceable manner in a bore in the slide and engages with a free end in a receptacle provided for the actuator 11 of the drive 9.

If the actuator 11 moves up and down in the housing 10, the slide 15 is carried along by the driver 16 designed as a pin 17.

The linear movements of the carriage 15 are converted into a rotary movement of an output pinion 17 of the transmission 13 by means of a conversion means. The output pinion 17 acts directly on the drive rod system 5 via a drive part of the locking fitting, which is not shown here, and displaces its steel strip 6 in order to effect the locking or unlocking of the casement 4 with respect to the frame.

In the embodiment shown here, the transfer means comprises a rack 18 arranged on the slide 15, the toothing of which meshes with the drive pinion 19 of the transmission 13.

Fig. 2 shows a schematic side view of the drive 9 in longitudinal section. The lower region of the housing of the drive 9 contains a motor 21 which drives a worm shaft 20. A shaft 23, which carries the worm wheel 24 which engages with the worm shaft 20, as well as a pinion 25, worm wheel 24 and pinion 25 are mounted in a bearing block 22 are rotatably connected to the shaft 23.

A double pinion 27 is mounted on an axle 26 anchored in the housing 10 and meshes on the one hand with the pinion 25 and on the other hand with a further pinion 28. The pinion 28 is non-rotatably connected to a spindle 12 mounted in the housing 10. On the spindle 12 is a lock nut 110, which is part of the actuator 11 (Fig. 1).

In this exemplary embodiment, the actuator also comprises a traction means 30 articulated on a foot 29 of the lock nut 110, which is designed here as a roller link chain 31. At the free end of the traction means 30 there is a connecting element for connection to the pin 17 of the driver 16 (FIG. 1) shown here as a blackened point. For example, the last end link 32 of the roller link chain 31 can carry a bushing 132 (FIG. 3) into which the free end of the pin 17 (driver 16) can be inserted. It can also be pulled out, as a result of which the drive 9 and the gear 13 can be decoupled from one another, for example in order to manually open the window. For this purpose, a wheel-like handle 33 is provided at the opposite end of the pin 17 of the driver 16.

In the housing 10 there is a control curve, under which a guide shaft 34 runs, which, like the control curve, has a vertical first shaft section, which runs parallel to the spindle 12, and an upper, approximately perpendicular second shaft section. A shaft wall of the guide shaft is slotted so that the foot 29 of the lock nut 110 can protrude into the guide shaft 34.

If the spindle 12 moves the lock nut 110 downward from the position shown here, the roller link chain 31 is pulled into the guide shaft 34, and in the deflection area it runs over a slide roller 35 mounted there in the housing 10.

The roller link chain 31 pulls on the pin 17 of the driver 16, which protrudes from an elongated hole guide 36 in the housing 14 of the transmission 13 and thereby moves the sash frame 4, which is only indicated here, in a tilting movement closing the window to the right. As soon as the roller link chain 31 is drawn in so far that its end link 32 with the driving pin 17 passes the deflection area with the sliding roller 35, the locking process is initiated since the pin 17 now moves along the control curve section or the congruent guide shaft section which runs parallel to the spindle 12 or to the drive rod system 5 of the casement 4.

The locking process of the casement with respect to the frame is complete when the pin 17 has reached the position at the lower end of the slot guide 36 in the housing 14 of the transmission 13. In this locking position, the end member 32 is located together with the pin in the position indicated by A in the guide shaft, the lock nut 110 being in the lower position indicated by dashed lines.

By reversing the direction of rotation of the motor 21, the opposite opening process is initiated, by means of which the sash frame 4 is first unlocked by shifting the drive rod system 5 relative to the frame and then the unlocked sash frame 4 is moved into the tilted position, as shown in FIG. 2.

A compressive force is exerted on the roller link chain 31. This is easily possible during the displacement of the chain within the guide shaft 34 for the purpose of unlocking. As soon as the chain emerges from the housing 10 or from the guide shaft 34 of the drive 9 in order to bring about the tilting movement of the casement 4, the chain becomes flexible, which means that it can only transmit tensile forces because it buckles when subjected to compressive forces. The roller link chain 31 used here is, however, equipped with link plates which have stops 37 which prevent deflection.

The stops 37 are formed on the end of a chain link of each chain link, projecting towards one side of the chain, and have lugs 38 on the sides facing the adjacent chain links, which are inclined so that, when the chain is stretched, there are mutually opposing nose flanks there is a wedge-shaped gap 39 which widens towards the tip of the lugs, but which is already closed again when there is little sag in the chain.

As a result, the chain becomes flexurally rigid on one side due to its own weight, so that compressive forces can also be transmitted with the chain.

When the chain runs into the guide shaft, the stops 37 thread into a guide groove 40 of the guide shaft 34.

In Fig. 3 the upper portion of the housing 10 of the drive 9 is shown in a section along the line III-III in Fig. 2. The same components are labeled with the same reference numbers.

Fig. 3 illustrates that the housing 10 of the drive is composed of two half-shells 10 'and 10''. Each half-shell laterally has the control curve visible here as an opening, as a result of which the drive 9 can be used on both sides. The curve section for the entrainment of the casement is designated 41 or 41 '. The curve section for driving the drive rod system has the reference number 42 or 42 '. Between the curve sections 41 and 41 ', or 42 and 42' runs inside the housing 10 of the guide shaft 34 for the traction means, which is part of the actuator 11 moved by the drive, with which the pin 17 of the driver 16 (FIG. 1) can be coupled is by being inserted into the socket 132 of the end link 32 of the roller link chain 31.

4 shows an embodiment of the gear which can be attached to the casement in a sectional side view, in which the transfer means is designed as a traction mechanism drive.

In the housing 14 of the gear 13, the carriage 15 carrying the driver can be displaced along an integrally formed guideway 43. The elongated hole guide located in the housing 14, through which the driver protrudes into the control cam of the drive 9 is again designated by 36 (FIG. 2).

A toothed belt 46 is placed around deflection wheels 44 and 45 mounted in the housing 14, the ends 47 and 48 of which are each attached to the slide. When the driver 16 causes the actuator 16 to move, the carriage 15 is moved along its guide path 43, the deflection wheel 44 being set in a rotary movement by the toothed belt. The deflection wheel 44 also acts as a drive pinion by rotating a drive shaft 49 mounted in the housing 14, on which a smaller pinion 50 is seated in a rotationally fixed manner. This in turn meshes with a larger output pinion 51, which is connected in a rotationally fixed manner to a shaft 52. Shaft 52 and output pinion 51 form a drive part of the closing fitting.

Fig. 5 shows a view of the transmission in a section along the line VV in Fig. 4. The same components are designated by the same reference numerals. Fig. 5 illustrates the toothing of the transmission and the transfer means and in particular the formation of the drive part for the locking fitting of the casement of the window as a shaft 52 extending through the housing 14, mounted therein and carrying the output pinion 51, on the first free end 53 of which a handle can be plugged and the second free end 55 of which has a square, hexagonal or the like form-locking element is provided, via which the shaft 52 can be inserted in a rotationally fixed manner in an associated receptacle of the locking fitting installed in the casement 4.

Fig. 6 is a view of a section along the line VI-VI in Fig. 4 and illustrates the compact design of the housing 14 of the transmission and the guide track 43 for the carriage 15. The housing 14 has a removable cover 56 on one side, under which sits a clamping screw 57 with which the driver 16 can be fixed in a bore of the carriage 15. After removing the cover 56, the clamping screw 57 is accessible.

FIG. 7 shows an embodiment for the conversion means of the transmission 13, as has already been mentioned in the above description of FIG. 1. The output pinion of the transmission is designated 17 here, as in FIG. 1. It meshes with a smaller pinion 56 which, together with the drive pinion designated as 19 in FIG. 1, sits in a rotationally fixed manner on a shaft 48 mounted in the housing 14. The drive pinion 19 meshes with the rack 18 located on the slide 15.

Fig. 8 shows a view of the gearbox according to a section VIII-VIII in Fig. 7, wherein the cross sections of the casement 4 and the frame 1 are also shown.

In accordance with a configuration corresponding to FIG. 5, the drive part is an extension which extends through the gear housing 14, is mounted therein and carries the output pinion Shaft 52, which is inserted at one end 55 in a form-fitting manner in an associated receptacle 59 of the locking fitting installed in the casement 4. The receptacle 59 is, for example, a spiked wheel, the spikes of which engage in matching perforations in the steel strip 6 of the drive rod system 5 (FIG. 1) in order to move this transversely to the plane of the drawing when the window is to be locked or unlocked.

FIG. 9 shows a view of the transmission 13 in a section along the line IX-IX in FIG. 7. The same components are identified by the same reference numbers.

10 shows a schematic sectional view of the upper head region of the drive 9 with the guide shaft 34 located in its housing 10. In this exemplary embodiment, a roller link chain 31 'is also provided as the traction means 30, but in contrast to the embodiment shown in FIG. 2, this is on both sides is flexible roller link chain, the link plates of which have the deflection beyond a predetermined amount of locks 60.

Arranged in the mouth area of the guide shaft 34 is a guide element 61 in contact with the traction means 30, which is designed here as a leaf spring 62, which presses on the traction means with a free spring area protruding into the mouth of the guide shaft and this forces the deflection in one below conveying direction from the drive 9 and run in.

The deflection or the sag of the traction means 30 or the roller link chain 31 'serving as traction means advantageously acts as compensation for a caster or advance.

FIG. 11 shows a part of the roller link chain 31 ′ according to FIG. 10 in a schematic longitudinal section.

Each chain link of the link chain 31 'consists of the outer link plates 63 and 63' and a respective inner link link 65 connecting two adjacent chain links via the chain pins 64 and 64 '.

Each lock 60 comprises approximately pin-shaped projections 66, 66 'located on the inner chain link and an approximately bean-shaped recess 67 and 67', associated with each projection 66, 66 ', located on the outer link 63 and 63', each projection 66, 66 'protrudes into the respectively assigned recess 67, 67' and strikes the ends of the recess 67, 67 'when the roller link chain 31' has a certain deflection, as shown in FIGS. 12 and 13, which show a side view of an inner plate 65 . Fig. 12 illustrates that the recess 67 is approximately bean-shaped and is arranged so that one of its ends lies above the central longitudinal line running through both chain pins 64 and 64 '. When the protrusion 66 abuts the upper end of the recess 67, this offset by an angle α limits or predetermines the sag of the roller link chain which serves to compensate for the lead or lag.

13 shows an embodiment of the lock of the roller link chain with a spring-loading locking element 68 which holds the projection 66 in the struck position in the recess 67 and can thus be released again in the event of opposite bending forces, which is designed here as a clamping spring 69.

14 shows another exemplary embodiment of a traction means 30, which here consists of a steel band 70 which is equipped with sliding elements 71 which can be guided in the guide shaft 34.

15 is a sectional view taken along the line XV-XV in Fig. 14 shown. 14 and 15 thus illustrate that each sliding element is a cylindrical or barrel-shaped body and each sliding element 71 has an opening 72. As a result, a plurality of sliding elements 71 are lined up on the traction means 30, here the steel strip 70.

As further illustrated in FIG. 15, each sliding element 71 consists of two halves 71a and 71b, the halves having connecting means 73 and 73 'that can be brought into operative connection on the mutually facing contact surfaces. The connecting means 73 and 73 'can for example be locking pins or the like which can be snapped into recesses.

As can also be seen from FIG. 14, a plurality of sliding elements can also be combined and formed in one piece. For example, a link strand formed from sliding elements can be produced in one part from plastic in this way. The one-piece link strand formed from sliding elements can also consist of two strand halves which can be brought into operative connection and which enclose at least one interposed reinforcing strand. A reinforcing strand can of course also be a steel cable that is injected, for example.

16 shows a schematic sectional view of the upper area of the drive 9 with the guide shaft 34, in which such a link strand made in one piece from plastic is guided as a traction means 30. 16 also illustrates the advantageous embodiment possibility of designing an end link of the link strand made of plastic as a lock nut 110.

17 in turn shows the upper head region of a drive 9 in the guide shaft 34 of which a traction means is guided according to a further embodiment. The traction device again exists from sliding elements 71, which are lined up on a steel belt 70. The openings 72 in each sliding element are flared outwards in this embodiment, so that a tension element designed in this way can be guided on narrow radii of the guide shaft, the steel band 70 being able to curve cleanly and without kinks.

FIG. 18 shows a view in section along the line XVIII-XVIII in FIG. 17. The same components are designated by the same reference numerals.

Claims (32)

Device for executing the closing and opening process of a tilting window or a tilting door consisting of a frame and sash frame, with a drive rod system which is at least partially installed in the rebate peripheral surface of the sash frame and which can be actuated by means of a locking fitting arranged on the sash frame for connecting or unlocking the sash frame with respect to the frame Drive which can be fixedly attached to the frame, which has a positively movable actuator which can be coupled to a driver which is assigned to the drive rod system and which projects from the casement, and which has a control curve along which the driver can be guided by the actuator, the control curve in addition to at least one curve section for one Entrainment of the casement has at least one curve section for entraining the drive rod system,
marked by
a gear (13) with i> 1, which can be attached to the outside of the sash frame (4) in the area of the locking fitting, in the gear housing (14) of which a carriage (15) carrying the driver (16) is displaceably guided, the displacement movement of which is assigned Converting means can be converted into a rotary movement of the gear drive pinion (19), a gear output pinion (17, 51) being connectable to a drive part of the locking fitting. Device according to claim 1, characterized in that the transfer means is a toothing arranged on the slide (15) with which a drive pinion (19) of the gear (13) meshes. Device according to claim 2, characterized in that the toothing is a rack (18). Device according to claim 1, characterized in that the transfer means is a traction drive. Device according to one of claims 1 to 4, characterized in that the housings (10, 14) are composed of half-shells. Device according to one of claims 1 to 5, characterized in that the drive part is a shaft (52) which extends through the gear housing (14), is mounted therein and carries the output pinion (17, 51), on the first free end ( 53) a handle (54) can be plugged in and the second free end (55) of which is non-rotatably connected to the locking fitting by positive engagement in an associated receptacle of the locking fitting installed in the casement (4). Device according to one of the preceding claims, characterized in that the control cam (41, 42; 41 ', 42') is formed by a slot having a corresponding course in at least one wall of a drive housing 10 which can be fastened to the frame (1). Device according to Claim 7, with a drive (9) which comprises an electric motor (21) and a spindle (12) driven thereby, which, when the drive housing (10) is attached to the frame (1), is approximately parallel to the respectively assigned immediately adjacent section of the drive rod system (5) runs on the casement (4), characterized in that the actuator (11) comprises a lock nut (110) seated on the spindle (12) and one with one end attached to the lock nut (110) Traction means (30), the other end of which can be connected to the driver (16). Device according to claim 8, characterized in that the drive housing (10) has a guide shaft (34) which follows the course of the control cam and is at least on one side open for the engagement of the driver (16) due to the corresponding slot, in which the Traction means (30) is accommodated in a longitudinally displaceable manner. Device according to claim 9, characterized in that a shaft wall of the guide shaft (34) is slotted and that the lock nut (110) has a foot (29) which projects into the guide shaft (34) through the slotted shaft wall and on which the traction means (30) is articulated. Device according to one of claims 9 and 10, characterized in that one end of the guide shaft (34) and of the slot forming the control cam opens into an opening in the wall of the drive housing facing the casement (4). Device according to claim 11, characterized in that a guide element (61) which is in contact with the traction means (30) is arranged in the mouth region of the guide shaft (34). Device according to claim 12, characterized in that the guide member (61) is designed as a leaf spring (62). Device according to one of the preceding claims, characterized in that the traction means (30) is a steel band (70). Device according to claim 14, characterized in that the steel belt (70) is equipped with sliding elements (71) guided in the guide shaft (34). Device according to claim 15, characterized in that each sliding element (71) is a cylindrical or barrel-shaped body. Device according to one of claims 14 to 16, characterized in that each sliding element (71) has an opening (72) and in that several sliding elements (71) are lined up on the traction means (30) or steel strip (70). Device according to one of the preceding claims, characterized in that the traction means (30) is a flexible link strand, the links of which consist of sliding elements (71) arranged in a row. Device according to claim 18, characterized in that the sliding elements (71) forming the links of a link strand are lined up on at least one reinforcement strand. Device according to claim 19, characterized in that each reinforcing strand is a steel cable. Device according to one of claims 14 to 20, characterized in that each sliding element (71) consists of halves (71a, 71b) having connecting elements (73, 73 ') which can be brought into operative connection and between which at least one reinforcing strand runs. Device according to one of claims 18 to 21, characterized in that the link strand formed from sliding elements (71) is a part made of plastic, in which at least one of the reinforcing strands is integrated. Device according to claim 22, characterized in that the link strand formed from sliding elements (71) consists of two strand halves which can be brought into operative connection and which enclose at least one interposed reinforcing strand. Device according to one of claims 8, 22 and 23, characterized in that an end link of the plastic link section is designed as a lock nut (110). Device according to one of claims 1 to 13, characterized in that the traction means (30) is a link strand which is flexible only in one direction. Device according to claim 25, characterized in that the traction means (30) is a roller link chain (31), the link plates of which have stops (37) blocking the deflection in a predetermined direction. Device according to Claim 26, characterized in that the blocking stops (37) are lugs (38) formed on the end of a chain link of each chain link and projecting towards a chain side and have nose flanks on the sides which are adjacent to each other and which run obliquely, that with a straight, stretched chain (31) between opposing flanks of one to the top of the Nose-widening, wedge-shaped gap (39) is present, which is closed again when the chain (31) is only slightly bent. Device according to one of the preceding claims, characterized in that a shaft side of the guide shaft (34) has a guide groove (40) for the stops (37). Device according to one of the preceding claims, characterized in that the guide shaft (34) in the deflection area of the chain (31) has a slide roller (35) mounted in the drive housing (10). Device according to one of claims 1 to 13, characterized in that the traction means (30) is a roller link chain (31), the link plates of which have locking elements (60) which limit the deflection beyond a predetermined amount. Device according to claim 30, characterized in that each lock (60) has at least one approximately pin-shaped projection (66,66 ') located on the inner chain link (65) and an associated, approximately bean-shaped projection located on the outer chain link (63,63') Recess (67,67 '), wherein the projection (66,66') protrudes into the recess (67,67 ') and abuts the ends of the recess (67,67') when the roller link chain (31) is deflected in a certain manner. Device according to one of claims 30 and 31, characterized in that each lock (60) with the projection (66,66 ') in the struck position in the recess (67,67') holding, spring-loaded, and thus with opposite bending forces again detachable Locks (clamping spring 69) is equipped.

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