EP2531685B1 - Motor-driven fitting for a sliding door cabinet - Google Patents

Description

The invention relates to a sliding door fitting for motorized opening and closing of at least two sliding doors of a cabinet, which are parallel to each other, each in their own displacement plane, guided and which are slidably mounted with running parts on a body of the cabinet, according to the preamble of claim 1.

Such a sliding door fitting is in the EP 1 431 499 A2 described. In a housing there is a device to shift two sliding sash against each other from an open position to a closed position. The device has a belt drive. One sliding door is attached to the leading belt section, the other sliding door to the returning belt section.

The US 2005/0150168 A1 describes a drive device for a sliding leaf. A toothed belt drive is arranged there in a housing.

The EP 1 854 957 A2 also describes a device for displacing a sliding door leaf with the aid of a toothed belt.

From the DE 10 2007 046 172 A1 a sliding door cabinet is known in which a stator of the linear motor and arranged on the upper edge of the sliding wing, a rotor of the linear motor on the cabinet side facing wide side surface of the carcass. The runner has a number of magnets. The stator is able to generate a magnetic field in order to shift the sliding sash between two end positions.

The DE 91 05 187 describes a Faltschiebetür in which a carriage is driven by a toothed belt. The timing belt is driven by a drive wheel, which is connected to a motor. On the slide sits a release lever, with a roller on the inside of a swing-up Door attacks to open the door.

The DE 202 01 094 U1 describes a fitting for a sliding door cabinet, with the sliding doors can be brought into a flush position. A similar fitting describe the DE 10 2005 024 654 A1 and the DE 10 2006 049 479 A1 ,

The invention is based on the object to provide a reliable sliding door fitting, with which the two sliding sash between the two end positions can be moved back and forth.

The problem is solved by a sliding door fitting with the features of claim 1.

First and foremost, it is provided that the drive device has two housing parts that are displaceable relative to one another in the displacement direction of the sliding doors. The housing parts include a drive device, by means of which the sliding doors can each be moved from a closed position to an open position. The housing parts can be connected to each other by a positive engagement profile engagement. Preferably, these side walls of the housing parts form profile ribs or profile grooves, which engage in each other, so that the two housing parts can be mounted on a mounting surface to adapt to different width cabinets in different displacement positions to each other.
The two housing parts are preferably connected to each other so that only the outermost ends of the composite of the two housing parts rest on the mounting surface. The two housing parts span like bridges the trajectory of drive arms, with which the sliding sash are moved. For this purpose, end pieces can be provided, which hold the housing parts at a distance above the carcass cover or the carcass floor. At least the end of a housing part thus floats above the mounting surface at a distance from the latter. Each of the two housing parts may have an opening facing the mounting surface. In this respect, the housing parts may have a U-shaped cross section. Through the opening, a drive means engage, which is connected to a respective drive part to displace the sliding sash.

The belt or rope is driven by a drive motor. It is deflected by a deflection roller arranged away from the drive roller. The door-mounted transmission part is formed by an arm. This arm has a mounting end with which it is attached to the belt, which is preferably a wedge or toothed belt. With the other end of the arm on the sliding sash and in particular there is attached to one of the two running parts. Preferably, the arm is fastened in each case to the outer running part of the two sliding doors. The arm may have a bend, with which it is attached to the running part. But it is also possible that the running part has a extending in the direction of movement of the sliding leaf extension to which the arm is attached. It then forms between the extension and the sliding sash from a slot in the opening of the sliding sash a running part of the other sliding sash can drive. The running parts have roles, which are guided in a running rail, which is attached to the edge of the corpus cover. The running rail has two parallel to each other extending guide channels, in each of which run the roles of the two doors associated running parts. This ensures that the inner, so located centrally between the two carcass walls running parts of the two sliding sash when opening the cabinet can pass each other. For this purpose, the rollers of the inner sliding leaf engage in the outer channel and the rollers of the outer sliding leaf in the inner channel of the running rail. The housing of the body-fixed gear part is preferably arranged on the upwardly facing outside or pointing down into the cabinet inside the carcass. These are elongate, each formed by a U-shaped rail housing, wherein in a first variant, the U-rails are fastened with their profile webs on the broad side surface of the Kor-pusdecke, so that the two U-legs vertically upwards protrude. Between the two U-profile legs of the two housing drive roller and pulley are arranged, wherein the two rollers are each arranged by means of axes of rotation at one of the two ends of the housing. In a second variant, the two U-profile rails are arranged such that the U-profile opening facing downward, ie to the mounting surface.

According to the invention, the two housing parts formed by U-profile rails are longitudinally displaceable with each other. The two housing parts can be telescoped against each other. The housing parts are connected to one another via a rigid connection, which, however, allow a relative displacement of the two housing parts in the longitudinal direction to one another.
The two rails can be assigned to each other, for example, via a positive connection slidably. For this purpose, one of the two broad sides of the U-profile rail have a profile groove. A broad side of the other rail may have a tread rib. The profile groove is an undercut groove, for example with a C-profile. The tread rib forms at its free end a thickened portion, so that the tread rib has a cross section having a hammer head shape or a mushroom head shape. The tread rib can be pushed into the profile groove. The two rails are then telescopically longitudinally displaceable. But it is also conceivable that an end portion of a U-profile rail has a bearing eye through which the rail, which forms the other housing part, is pushed. About two such compounds of the end portions of the rails with the other rail, an alternative telescopic connection can be realized. The U-openings of the profile rail here preferred to the carcass ceiling or the body floor. The U-opening is thus covered by the mounting surface. Here, too, remains between the rails and the mounting surface an air gap in which the drive arms can be moved. A first, relative to the sliding rearward relative to a second rail fastened profile rail and just this second rail have at their respective outer ends bucks. These blocks are used to attach the profile rail pair on the mounting surface. The blocks hold the rail in a distance position relative to the mounting surface, so that the rails are held floating against the mounting surface. At least the end of the second rail, so the sliding doors closest to the profile rail, also has a distance from the mounting surface, so that the drive arm, which is driven by the first rail, can travel under this profile rail end. In this variant too, the drive of the connecting pieces or of the drive arms fastened to the connecting pieces preferably takes place via a belt drive. Between the two U-profile legs of the rails, a drive roller and a guide roller are arranged, wherein the two rollers are each arranged by means of axes of rotation at one of the two ends of the rail. But it is also conceivable to relocate the connector with a different displacement mechanism relative to the rail. It is conceivable, for example, the use of a rotary-driven threaded spindle with a strong pitch having thread. Preferably, however, the belt drive is used. The axes of rotation of the rollers are mounted in the U-legs. The two substantially parallel to each other extending housing are arranged in an overlapping arrangement on the carcass. The two housings are thus partially adjacent to each other, but with a distance. The outer sliding panel associated drive arm is designed so that it can overflow the housing of the inner sliding panel associated with the body-fixed gear part when opening the outer sliding leaf. The outer sliding panel associated Korpusfeste gear part is therefore the rear of the inner sliding panel associated with the body fixed gear part. The overlapping arrangement of the two housings allows for great flexibility since housings of a uniform length can be attached to variable length cabinets of varying lengths to accommodate variable overlap lengths. The ends of the two drive arms are each secured by means of clamping jaws on the drive belt. The drive rollers are preferably associated with the respective outer end of the housing. At the ends adjacent to the cabinet walls of the housing are on the U-leg walls of the U-profile drive units screwed. These consist of a drive motor which is connected to a reduction gear. The output shaft of the reduction gear is connected via a shaft coupling with the drive shaft of the drive roller to drive the belt. But it is also possible to connect the drive motor directly to the drive roller. The drive belt is preferably designed as a toothed belt. The teeth of the toothed belt engage in a toothing of the drive roller, so that the slip between the drive roller and the drive belt is minimized. The drive can also be done via a rope, such as a steel cable. This is then preferably wound several times around the drive roller to prevent slippage. The control of the drive motors via an electronic control unit. The electronic control unit is part of the fitting and is able to determine by means of sensor elements, the respective displacement position of one of the sliding sash and based on the respective position of the sliding sash to control its movement. In the control device for this purpose a path-speed law is deposited, according to which the motors are operated. The initialization of an opening or closing movement of one of the sliding sash can take place via a switch. However, the initialization preferably takes place via an initial movement of the respective sliding sash to be displaced. This is pushed, for example, in the opening direction or in the closed direction by the user. About the sensor means, the control unit of such a slight non-motorized movement of the sash learns. The control unit then controls the belonging to this sliding wing motor to shift the sliding sash in accordance with the stored path-speed law in the appropriate direction. If the other sliding sash is in a collision position, it is also displaced. If the sliding leaf encounters a resistance during its displacement, the drive motor is braked. This can be determined by the fact that the sliding sash slows down unscheduled or that the expended by the engine power is unscheduled large. The movement of a sliding leaf from the closed position to the open position or vice versa is essentially carried out in three phases of movement. In a first movement phase The sliding sash is accelerated to its maximum speed. He is moved in the second phase with its maximum speed. In the third phase, the sliding sash is decelerated. When the fitting is first put into operation, the so-called teach-in process initializes the entire system. To do this, the control unit moves the sliding sash alternately into the two end positions at a creep speed. For example, the two sliding sash are first moved to the closed position. This is done slowly, so with a low kinetic energy. When the sliding leaves reach their closed position, they stop. The sensor unit stores this displacement position and then moves the sliding panels one after the other into their open position. If the sliding leaves reach a relevant stop position, this position is likewise stored in the storage unit. The sensor means may be a rotary encoder associated with each of the drive motors. These rotary encoders transmit pulses to the control unit, which can determine the current position of the sliding sash by counting the pulses.

Fig. 1:

ein nicht zur Erfindung gehörendes erstes Ausführungsbeispiel in einer Draufsicht auf eine Korpusdecke eines Schiebeflügelschranks mit einer dort angeordneten Vorrichtung zum Öffnen und Schließen zweier Schiebeflügel (im Folgenden auch Schiebetüren genannt) 3, 3', wobei die Schiebeflügel 3, 3' sich in der Geschlossenstellung befinden,

Fig. 2:

eine Darstellung gemäß Fig. 1, jedoch mit in die Öffnungsstellung verlagertem inneren Schiebeflügel 3,

Fig. 3:

eine Darstellung gemäß Fig. 1, jedoch mit in die Öffnungsstellung verlagertem äußeren Schiebeflügel 3',

Fig. 4:

einen Schnitt gemäß der Linie IV - IV durch die beiden jeweils von U-Profilschienen ausgebildeten Gehäuse der korpusfesten Getriebeteile 4, 4' im Überlappungsbereich der beiden Gehäuse,

Fig. 5:

eine vergrößerte Darstellung eines Ausschnittes der Fig. 1,

Fig. 6:

einen Schnitt gemäß der Linie VI - VI durch das äußere Laufteil 9 des inneren Schiebeflügels 3,

Fig. 7:

einen Schnitt gemäß der Linie VII - VII in Fig. 6,

Fig. 8:

einen Schnitt gemäß der Linie VI - VI in Fig. 5,

Fig. 9:

einen Schnitt gemäß der Linie IX - IX in Fig. 6,

Fig. 10:

einen Schnitt gemäß der Linie X - X in Fig. 5 durch die beiden Befestigungsplatten 17, 18,

Fig. 11:

eine Darstellung eines zweiten Ausführungsbeispiels eines einem äußeren Schiebeflügel zugeordneten Antriebsarms, der an einem Anschlusswinkel 25' befestigt ist,

Fig. 12:

den Anschlusswinkel 25', wie er mit zwei Befestigungszungen 26' am Schiebeflügel 3' befestigt ist,

Fig. 13:

ein Blockschaltbild einer Steuerung,

Fig. 14:

ein zweites, erfindungsgemäßes Ausführungsbeispiel an einer Darstellung gemäß Fig. 1,

Fig. 15:

das zweite Ausführungsbeispiel in einer Frontansicht im Bereich der Korpusdecke,

Fig. 16:

eine perspektivische Darstellung einer ersten Profilschiene 11,

Fig. 17:

eine perspektivische Darstellung einer zweiten Profilschiene 11',

Fig. 18:

ein drittes Ausführungsbeispiel der Erfindung in der Draufsicht auf den Korpus eines Schiebetürschrankes,

Fig. 19:

einen Blick in Richtung des Pfeiles XIX in Fig. 18,

Fig. 20:

eine vergrößerte Darstellung der linken Seite der Fig. 19,

Fig. 21:

eine vergrößerte Darstellung der rechten Seite der Fig. 19,

Fig. 22:

einen Schnitt gemäß der Linie XXII-XXII in Fig. 20, wobei der Antriebsarm 8' eine erste Winkelstellung zum Laufteil 9' besitzt,

Fig. 23:

eine Darstellung wie Fig. 22, wobei jedoch der Antriebsarm 8' durch Verstellen der Madenschraube 40 eine andere Neigungsstellung zum Laufteil 9' einnimmt,

Fig. 24:

einen Schnitt gemäß der Linie XXIV-XXIV in Fig. 20, wobei der Antriebsarm 8 eine erste Winkelstellung gegenüber dem Laufteil 9 einnimmt,

Fig. 25:

einen Parallelschnitt zum Schnitt in Fig. 24,

Fig. 26:

eine Darstellung wie Fig. 25, wobei der Antriebsarm 8 zur Folge einer verdrehten Madenschraube 40 eine andere Neigungsstellung zum Laufteil 9 einnimmt,

Fig. 27:

eine perspektivische Ausschnittsdarstellung ähnlich der Fig. 16 eines ersten Gehäuseteiles 11' mit einer Schwalbenschwanznut,

Fig. 28:

eine perspektivische Ausschnittsdarstellung eines zweiten Gehäuseteiles 11 ähnlich der Fig. 17 mit einem schwalbenschwanzförmigen Profilabschnitt zum Eingriff in die vom Gehäuseteil 11' ausgebildete Nut,

Fig. 29:

als Explosionsdarstellung einen Antriebsarm 8' mit zugehörigem Laufteil, und

Fig. 30:

als Explosionsdarstellung einen anderen Antriebsarm 8 mit zugehörigem Laufteil 9.

Embodiments of the invention will be explained with reference to the accompanying drawings. Show it:

Fig. 1:

a not belonging to the invention first embodiment in a plan view of a carcass ceiling of a Schiebeflügelschranks with a device arranged there for opening and closing two sliding sash (hereinafter also called sliding doors) 3, 3 ', wherein the sliding sash 3, 3' are in the closed position .

Fig. 2:

a representation according to Fig. 1 , but with inner sliding wing 3 displaced into the open position,

3:

a representation according to Fig. 1 , but with outer sliding wing 3 'displaced into the open position,

4:

a section along the line IV - IV through the two respectively formed by U-profile rails housing the body-fixed gear parts 4, 4 'in the overlapping region of the two housings,

Fig. 5:

an enlarged view of a section of the Fig. 1 .

Fig. 6:

a section along the line VI - VI through the outer race part 9 of the inner sash wing 3,

Fig. 7:

a section along the line VII - VII in Fig. 6 .

Fig. 8:

a section along the line VI - VI in Fig. 5 .

Fig. 9:

a section along the line IX - IX in Fig. 6 .

Fig. 10:

a section along the line X - X in Fig. 5 through the two fastening plates 17, 18,

Fig. 11:

FIG. 2 a representation of a second exemplary embodiment of a drive arm associated with an outer sliding leaf, which is fastened to a connection angle 25 ', FIG.

Fig. 12:

the connection angle 25 ', as it is fastened with two fastening tongues 26' on the sliding leaf 3 ',

Fig. 13:

a block diagram of a controller,

Fig. 14:

a second, inventive embodiment of a representation according to Fig. 1 .

Fig. 15:

the second embodiment in a front view in the region of the corpse ceiling,

Fig. 16:

a perspective view of a first rail 11,

Fig. 17:

a perspective view of a second rail 11 ',

Fig. 18:

A third embodiment of the invention in the plan view of the body of a sliding door cabinet,

Fig. 19:

a look in the direction of the arrow XIX in Fig. 18 .

Fig. 20:

an enlarged view of the left side of the Fig. 19 .

Fig. 21:

an enlarged view of the right side of the Fig. 19 .

Fig. 22:

a section according to the line XXII-XXII in Fig. 20 wherein the drive arm 8 'has a first angular position to the running part 9',

Fig. 23:

a representation like Fig. 22 However, wherein the drive arm 8 'assumes a different inclination position to the running part 9' by adjusting the grub screw 40,

Fig. 24:

a section according to the line XXIV-XXIV in Fig. 20 in which the drive arm 8 assumes a first angular position relative to the running part 9,

Fig. 25:

a parallel section to cut in Fig. 24 .

Fig. 26:

a representation like Fig. 25 in which the drive arm 8 assumes a different inclination position to the running part 9 as a result of a twisted grub screw 40,

Fig. 27:

a perspective cut-away view similar to the Fig. 16 one first housing part 11 'with a dovetail groove,

Fig. 28:

a perspective cutout view of a second housing part 11 similar to the Fig. 17 with a dovetail-shaped profile section for engagement in the groove formed by the housing part 11 ',

Fig. 29:

as an exploded view of a drive arm 8 'with associated running part, and

Fig. 30:

as an exploded view another drive arm 8 with associated running part. 9

On the carcass cover 2 of the carcass 1 of a sliding door cabinet are in the in Fig. 1 illustrated arrangement two corpus fixed gear parts 4, 4 'screwed. Each of the two body-fixed gear parts 4, 4 'extends parallel to the direction of movement of two arranged at the edge of the carcass 2 sliding sash 3, 3'.

The housing of the two gear parts 4, 4 'is in each case formed by a U-profile rail 11, 11'. The U-profile rail 11, 11 'is connected with its web portion with the broad side surface of the carcass cover 2, for example screwed. At one of the two ends of the U-profile rail is a deflection roller 6, which is freely rotatably mounted with an axis on the two mutually parallel legs of the U-profile. The deflection roller 6 is located approximately in the middle between the two U-profile legs of the U-profile rail 11. In the drawings, the housing 11, 11 'are not shown connected to each other.

At the other end of the U-profile rail 11 is another roller 5, which is a drive roller. The drive roller 5 is fixedly connected to a drive axle, which are also in the two parallel to each other extending U-profile legs is mounted.

The drive roller 5 is connected via an elastic shaft coupling 14 to the output shaft of a reduction gear 15. The reduction gear 15 is driven by an electric motor 13. The drive motor 13 forms with the reduction gear 15, a mounting unit which is connected via four parallel to each other extending rods 16 with the housing side wall. The drive motor 13 or the reduction gear 15 can also be connected directly to the shaft of the drive roller 5.

The rails 11, 11 'have a length which is greater than the displacement of the associated sliding door 3, 3'. The drive roller 5 is formed as a toothed disc and drives a toothed belt formed as a drive belt 7, which is also on the deflection roller 6.

The two body-fixed gear parts 4, 4 'are arranged on the carcass cover 2 that their housing 11, 11' overlap regions. In the interconnected state they can be moved telescopically. In this case, the U-profile rail 11 assigned to the outer sliding leaf 3 'is arranged rearwardly of the U-profile rail 11 assigned to the inner door leaf 3.

By means of two clamping jaws 17, 18 extending parallel to one another, which receive the toothed belt 7 between them, one end of a respective drive arm 8, 8 'is connected to the toothed belt 7. The Fig. 10 It can be seen that a lower jaw 18 identifies a tooth profiling into which the teeth of the toothed belt 7 engage in a form-fitting manner. The two jaws 17, 18 are bolted together. The upper jaw 17 is screwed to one end of the drive arm 8, 8 '.

The drive arm 8 ', which is associated with the outer sliding leaf 3', is formed by a stamped and bent sheet metal part. The arm 8 'is such bent, that in the course of the opening movement of the outer sliding wing from in the Fig. 1 shown closed position in the in the Fig. 3 shown open position on the U-profile rail 11 can drive, which is assigned to the inner door leaf 3. The arm 8 'protrudes substantially at right angles
from the extension direction of the U-profile rail 11 and the extending between the two U-legs toothed belt 7 from. At the end of the running part 9 'adjacent end of the drive arm 8' has a bend 23 ', which points to the cabinet wall. With this bend 23 ', the drive arm 8' is connected to the running part 9 '.

The Figures 11 and 12 show a variant of a drive arm 8 '. This is attached to an extension 23 of a connection bracket 25 'with screws. The connection angle 25 'forms two mutually spaced, parallel to each other extending fastening tongues 26', with which it is attached to the inwardly facing broad side of the sliding leaf 3 '. Between the two fastening tongues 26 'is a mounting plate of the running part 9'. The mounting plate of the running part 9 'serves as an assembly aid.

The toothed belt 7 of the inner door leaf 3 associated with the corpus fixed gear part 4 is also connected via a clamping device 12, which has two jaws 17, 18, connected to the toothed belt 7, wherein the drive arm 8 protrudes approximately at right angles to the direction of movement of the toothed belt 7. The other end of the drive arm 8 is also connected to a running part 9 here. This forms also in the direction away from the cabinet side wall directed extension 23, on which the drive arm is mounted such that when opening the inner door leaf 3 of the in the Fig. 1 shown closed position in the in the Fig. 2 shown open position another running part 10 'of the outer door leaf 3' in a slot 24 can retract. The other running part 10 'of the outer sliding sash 3' also drives when opening the outer sliding sash 3 'in this slot 24, as it Fig. 3 shows.

The Fig. 4 shows the attack of the drive arm 8 'on the inner door 3 associated U-profile 11. This attack is in a simple manner possible because the two U-rails 11, 11' of the same design and the upper jaw 17, the upper edge of U-profile legs surmounted.

The two body-fixed gear parts 4, 4 'are so far away from a running rail 20 spaced that they are arranged in a non-accessible area of the carcass.

The running rail 20 is fixed to the carcass cover and has two mutually parallel channels, in each of which run rollers 21 of the running parts 9, 9 ', 10, 10' run. The running parts 9, 9 ', 10, 10' are fastened by means of fastening plates 19 on the inner sides of the sliding sash 3, 3 '.

In order to prevent jumping out of a roller 21 from the guide channel of the running rail 20, each running part 9, 9 ', 10, 10' carries a lever 22, which is in the Fig. 9 is shown in a non-activated position. The Aushebelsicherung 22 is formed by a slider. Will this from the in Fig. 9 shown unactivated position pushed up, so he takes his activated position and prevents upward movement of the runners 9, 9 ', 10, 10'.

Since the two drive arms 8, 8 'in each case on the outer, ie the cabinet walls adjacent running parts 9, 9' attack, keep in their displacement always a distance from each other. You do not have to overflow. However, the two inner running parts 10, 10 'are designed so that they can be overflowed by the drive arms 8, 8'. The running part 10 ', which is associated with the outer door leaf 3', is also designed in such a way that it can overflow the inner running part 10 of the inner door leaf 3.

In a preferred embodiment, the actuating arms 8, 8 'are releasably connected to connection angle 25, 25', wherein the connection angle 25, 25 'respectively Fastening tongues 26, 26 ', with which the connection angle 25, 25' on the inside of each sliding leaf 3, 3 'are fixed. In this case, the fastening tongues 26, 26 'each have a mounting plate of a running part 9, 9' between them. As a result of this embodiment, the respective fastening arm 8, 8 'can only be fastened to the mounting brackets 25, 25' after the sliding panels 3, 3 'have been mounted on the carcass.

In one embodiment, not shown, no toothed belt, but a steel wire is used. This steel cable can be designed as an endless rope, which is wound several times around the drive roller 5. Instead of a rope or a belt but also a spindle drive can be provided, in which a threaded spindle is located within the housing, which is rotationally driven by an electric motor. A drive means is formed by a spindle nut, which can be moved by rotating the threaded spindle along the housing. The drive means is in each case connected to a drive arm 8, 8 '.

The control for the sliding leaf drive has a control unit 28 which drives two motor drivers 27, 27 '. The motors 13, 13 'may be stepper motors. But it can also be AC or DC motors. In this case, the drive motors 13, 13 'each have a rotary encoder, via which the control unit 28 is informed about the respective rotational position of the engine. The rotary encoders provide pulses to the control unit 28, from which the control unit 28 can determine the linear position of each sliding sash. For determining the position, in particular of final stages, additional Hall sensors 31 may be provided. Furthermore, the control unit 28 is able to turn on or off a cabinet lighting, in particular an LED lighting, via a switching device 29. To control the brightness of the cabinet lighting, a dimmer circuit 30 may be provided.

In a preferred embodiment, the motors are operated switchless.

The user manually moves the sliding sash to be moved in the desired direction. About the timing belt 7 while the drive motor is rotated. Via a sensor device, for example via the rotary encoder of the motor 13, 13 ', the control unit 28 is informed about this shift. The control unit 28 then energizes the respective drive motor 13, 13 'so that the sliding leaf can drive motor-driven into the respective end position. This initially takes place in an accelerated movement until the sliding leaf 3, 3 'has reached its maximum speed. Shortly before the respective end position is a motor, in particular controlled deceleration of the sliding sash 3, 3 'until it comes to a stop in the end position. If the other sliding sash is in a collision position, then its drive motor is driven in order to bring it out of the collision position, for example to open or close it.
When first commissioning of the fitting, the sliding sash drive first in a creep in the direction of an end position, for example, their respective closed position until they reach it. This is determined by the motor, since the rotary encoder no longer delivers signals. The control unit stores this end position. Subsequently, in succession, one of the sliding leaves moves in each case into the front end position, that is to say the complete open position, wherein it also moves into a stop position. This too is done in a crawl. The stop position is stored in the control unit 28.

In the in the FIGS. 14 to 17 illustrated, the second embodiment according to the invention, the two drive arms 8, 8 'also of a within a U-profile rail 11, 11' arranged cable, belt or spindle drive along the U-profile rail 11, 11 'is displaced. At one end of the U-profile rail 11, 11 'is for this purpose a drive motor 13, 13'. Also in this embodiment, the ends of the S- or L- or Z-shaped extending drive arms 8, 8 'with running parts 9, 9' of a sliding door leaf 3, 3 'are connected.
In this embodiment, the U-shaped housing, which is also here are formed by U-shaped rails 11, 11 ', in the extension direction of the housing parts 11, 11' slidably connected together.

A first U-profile rail 11 'can on one of its broad sides 37, which is formed by a U-profile leg, outside a profile rib 35 wear. In the in the FIG. 17 illustrated embodiment, the laterally projecting profile rib 35 has a thickened end, so that the cross section of the tread rib 35 is similar to that of a mushroom.

The second U-profile rail 11, which in the FIG. 16 is shown, has on its side wall 37 of the first U-profile rail 11 'side facing wall 36 has a profile formed by an extension 34, the cross-sectional inner surface substantially corresponds to the cross-sectional area of the profile rib 35. The extending over the entire longitudinal extension of the U-profile rail 11 'profile rib 35 can be inserted into the profile groove 34 of the second U-profile rail 11. For this purpose, the profile groove 34 extends over the entire longitudinal extension of the U-profile rail 11. In the collapsed state results in a bending-resistant assembly of two mutually telescopically displaceable U-profile rails 11, 11 '.

The Figures 14 and 15 It can be seen that in each case one end of the U-profile rails 11, 11 'carries a little piece 32. The blocks 32 are thus assigned to the two farthest ends of the assembly formed by the two rails 11, 11 '. With these blocks 32, the assembly is screwed, for example, on the top of a carcass cover 2. The extending between the blocks 32 sections of the U-profile rail 11, 11 'have a height distance to the mounting surface formed by the top of the carcass 2. In the distance space thus formed, the two drive arms 8, 8 'can move.

Within the U-cavity of the two U-profile rails 11, 11 'is a belt arrangement, as they relate to the first embodiment in detail has been described. In contrast to the first embodiment, however, here has the U-opening of the rails 11, 11 'to the mounting surface. The rear rail 11 'additionally has at its other end a small block 32', which carries the drive motor 13 '. The block 32 'is supported here on the mounting surface.
The sliding rails 3, 3 'pointing towards U-profile rail 11 is closed with a cap 33, which does not point to the mounting surface. Cap 33 and U-profile rails 11, 11 'thus float at a distance above the mounting surface, so that the rear U-profile rail 11' associated drive arm 8 'can travel under the end cap 33.
Also in the front U-profile rail 11, the drive motor 13 is associated with a bucket 32.
The slidable connection of the two housing parts 11, 11 'has the advantage that the two U-profile rails 11, 11' are connected to form an assembly, wherein the two U-profile rails 11, 11 'can be moved against each other. The drive device can thus be attached to sliding door cabinets of different widths. The width adjustment takes place by mutually displacing the two U-profile rails 11, 11 '.

In the in the FIGS. 18 to 30 illustrated embodiment of the invention, the two housing parts 11, 11 'are also formed as U-profile rails and are located on the top of a carcass of a sliding door cabinet. The two most remote ends of the two housing parts 11, 11 'are provided with blocks 32, 32', with which the assembly formed from the composite of the two housing parts 11, 11 'like a bridge to form a height distance 38 on the ceiling 2 of the body 1 supported. From the cover 2 of the body 1 facing opening of the U-rails formed housing parts 11, 11 'protrudes a drive means, each of which a Electric motor 13, 13 'along the extension direction of the housing parts 11, 11' can be displaced. The drive means is in each case connected to a drive arm 8, 8 '. The drive arm 8 'can drive under the end cap 33 of the housing part 11, since the end cap 33 is not supported on the carcass cover 2. The end cap 33 rather floats at a height distance 38 above the carcass top. 2

The two housing parts 11, 11 'are connected to each other displaceable via a profile engagement. For this purpose, the side wall 36 of the housing part 11 'forms two webs 43 extending parallel to one another. The two webs form profiled grooves 34 facing one another. Together, the profile grooves 34 form a dovetail groove.

Profile grooves 35, which are formed by the other housing part 11, correspond to the profile grooves 34. The profile ribs 35 thereby spring webs 42 which are associated with the side wall 37 of the housing part 11. The webs 42, 43 protrude substantially perpendicular to the respective housing wall 36, 37. While the grooves 34 are directed towards each other, the ribs 35 are directed away from each other. However, it is also possible that the grooves 34 are directed away from one another and the profile ribs 35 corresponding to the grooves 34 are aligned with one another. It is essential that the grooves 34 and the ribs 35 allow a displacement of the two housing parts 11, 11 'in the direction of their longitudinal extent and at the same time tie the housing parts 11, 11' rigidly together.

Another aspect of the invention relates to the angular adjustability of the drive arms 8, 8 'relative to the respective running part 9, 9'.

In the in the Figures 20 . 22 and 23 illustrated embodiment, the running part 9 'has a fastening extension, which protrudes approximately at a 45 ° angle from a mounting plate of the running part 9'. An also about 45 ° from the drive arm 8 'angled mounting portion is about a plurality of mounting screws 39 connected to the attachment extension of the running part 9 '. The mounting part 9 'formed by the mounting portion forms a plurality of threaded holes 46, in which the threaded shanks of the mounting screws 39 are screwed. The fastening screws 39 pass through holes 45 of the fastening extension of the drive arm 8 '.

The attachment extension of the drive arm 8 'has moreover approximately in its center of extent, but lying on the edge, a threaded bore 44 into which a grub screw 40 is screwed. Since the grub screw 40 is arranged off-center of the mounting portion, its end face can be supported on an edge portion of the mounting portion 9 'associated with the mounting portion. By turning the grub screw 40, a wedge gap 41 is formed between the two attachment portions, so that the inclination position of the drive arm 8 'relative to the running part 9' can be changed.

Also in the in the FIGS. 25, 26 and 30 illustrated drive arm 8 can be changed by adjusting a grub screw 40, the inclination angle of the drive arm 8 relative to the running part 9. Here, the running part 9 is formed by a U-shaped sheet metal part, the U-web surface forms a mounting portion for a fork-shaped end of the drive arm 8. The forked end has holes 45 through which fastening screws 39 engage, which are screwed into threaded holes 46 of the mounting portion of the running part 9.

Again, the tilt position can be adjusted by the adjustment of a grub screw 40. In the embodiment, each of the two fork arms has a threaded bore 44 into each of which a grub screw 40 is screwed.

To adjust the inclination position of the drive arm 8, 8 'previously the mounting screws 39 must be solved slightly. After the tilt position has been adjusted by turning the grub screw 40, the mounting screws 39 can be tightened again.

Claims (11)

1. Sliding door fitting for motor-driven opening and closing of at least two sliding doors (3, 3') of a cabinet, which are guided parallel to one another, each in its own plane of displacement, and which are displaceably mounted with running parts (9, 10, 9', 10') to a corpus (1) of the cabinet,
   comprising for each sliding door (3, 3') one drive arm (8, 8') in each case for mounting to the sliding door (3, 3') and one gear part (4, 4') in each case with a housing (11, 11') for mounting to a mounting surface of the corpus (1) and with a drive means (5, 6, 7) which comprises a drive motor (13, 13') and a rope drive, belt drive or spindle drive driven by the drive motor (13, 13') in order to displace the drive arm (8, 8') which is mounted to the rope drive, belt drive or spindle drive between two end positions by the force of the drive motor (13, 13'),
   characterized in that
   the at least two housings (11, 11') are connected to one another such that they can be displaced relative to one another in the displacement direction of the sliding doors (3, 3') in order to adjust the sliding door fitting to cabinets of different widths, and
   each housing (11, 11') comprises an opening facing the mounting surface or facing away from the mounting surface, through which a drive means of the rope drive, belt drive or spindle drive connected to the drive arm (8, 8') in each case projects, wherein the housings are each formed by a U-shaped profile rail (11, 11'), the U-shaped profile cavity of which comprises the rope drive, belt drive or spindle drive that can be displaced by the drive motor (13, 13').
2. Sliding door fitting according to claim 1, characterized in that the two housings (11, 11') comprise positive locking profile sections (34, 35) which interlock and are formed, in particular by their side walls.
3. Sliding door fitting according to any one of the preceding claims, characterized in that the housing arrangement that consists of the two interconnected housings (11, 11') is supported by brackets (32, 32') arranged on their respective outer ends at a distance (38) from the mounting surface formed by the corpus top (1) or the corpus bottom.
4. Sliding door fitting according to any one of the preceding claims, characterized in that the belt drive or rope drive comprises a drive belt or drive rope (7) which is driven by a drive pulley (5) arranged at an end of the housing (11, 11') and deflected by a deflection pulley (6) arranged at the other end of the housing (11, 11').
5. Sliding door fitting according to claim 4, characterized in that the mounting ends of the drive arms (8, 8') are mounted to the drive belt or drive rope (7) by means of a clamping device (12) comprising in particular two clamping jaws (17, 18).
6. Sliding door fitting according to claim 4 or 5, characterized in that the drive motor (13, 13') drives a reduction gear (15), the driven shaft of which is gear connected to the drive pulley (5) by means of a shaft coupling (14).
7. Sliding door fitting according to any one of the claims 4 to 6, characterized in that the drive belt (7) is a toothed belt and the drive pulley (5) comprises a toothing into which the teeth of the toothed belt (7) engage.
8. Sliding door fitting according to any one of the preceding claims, characterized in that the drive arms (8, 8') comprise a bent section (23').
9. Sliding door fitting according to any one of the preceding claims, characterized in that the drive arm (8') associated with the outer sliding door (3') engages over or below the housing (11) of the gear part (4) associated with the inner sliding door (3).
10. Sliding door fitting according to any one of the preceding claims, characterized in that the drive arms (8, 8') are formed by punched and bent, in particular multi-part, sheet metal parts.
11. Sliding door fitting according to any one of the preceding claims, characterized in that at least one drive arm (8, 8') comprises a grub screw (40) that can be supported on the associated running part (9, 9') in order to adjust the inclined position of the drive arm (8, 8') with respect to the running part (9, 9') by rotating the grub screw (40).

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