EP3715571B1 - Sliding door system and method for operating same - Google Patents

Description

The invention relates to a method for operating a sliding door system, comprising a door drive with a traction means designed as a toothed belt, a sliding door running gear with a movable carriage for a sliding door element, which is coupled to the traction means, and a locking device for locking the door drive, the locking device having at least one locking means has, which is movable back and forth between a release position and a locking position. Furthermore, the invention relates to such a sliding door system.

In sliding door systems of this type, it is known to provide a locking means which, in order to lock the door drive, interacts in a form-fitting manner with a drive element of the door drive, for example a deflection roller for the traction means. The form-fitting interaction can consist, for example, in that the locking means engages in a toothing of the deflection roller. In order to enable such a form-fitting locking, ie to be able to bring the locking means into engagement with the deflection roller, it is necessary for the corresponding form-fitting elements, for example teeth, of the locking means and the deflection roller to be aligned with one another. This means that the door drive can only be locked in predetermined locking positions of the deflection roller. At the same time, however, it must also be ensured that the coupled with the traction means Door element is in a position in which locking the door drive is useful, for example in a closed position of the door element. When installing such locking systems, it is therefore necessary to adjust the door drive and the locking device in order to ensure that the door element is in its closed position and at the same time it is possible for the locking means to engage in the deflection roller. In practice, however, this adjustment has proven to be very time-consuming and labor-intensive.

From the DE 197 00 859 A1 a locking device with a slidably mounted locking bolt is known which can be actuated electrically. The locking device is clamped via a retaining arm in a horizontal groove on the front of the running gear profile. The heart of the lock is a bistable locking bolt that is actuated by an electromagnet and can be moved in the axial direction between two end positions. The locking bolt is coupled to a comb-like rake via a bracket. In the locking position, the comb-like rake, which engages in the teeth of the drive belt designed as a toothed belt, has a clamping effect on the inner strand of the drive belt, with a counterpart on the toothless rear wall of the drive belt preventing backward deflection.

The disclosure thus teaches a locking device for carrying out a method for operating a sliding door system, comprising a door drive with a traction means designed as a toothed belt, a sliding door running gear with a movable carriage for a sliding door element, which is coupled to the traction means, and a locking device for locking the door drive, wherein the locking device has at least one locking means which moves between a release position and a locking position can be moved back and forth, with a locking section of the locking means interacting in a form-fitting manner with the traction means in the locking position. Disadvantageously, the case can arise that the locking means does not effectively engage in the traction means in the locking position, so that secure locking is not fundamentally guaranteed.

Another locking device is from EP 1 681 414 A2 known, which cooperates in the same way with the traction means in the form of a toothed belt to block the wing elements of a sliding door system when activated. Also according to this disclosure, the disadvantage can occur that the locking means does not effectively engage in the traction means in the locking position, so that secure locking is not fundamentally guaranteed.

Against this background, the task arises of enabling the installation and setting up of a locking system with less effort.

• In einem Auslöseschritt wird ein Verriegelungsbefehl zum Bewegen des Verriegelungsmittels in die Verriegelungsstellung an die Verriegelungseinrichtung übermittelt; und
• in einem dem Auslöseschritt nachfolgenden Detektionsschritt wird mittels eines Stellungssensors der Verriegelungseinrichtung die Stellung des Verriegelungsmittels detektiert, und wobei
• in einem dem Detektionsschritt nachfolgenden Bewegungsschritt das Zugmittel um eine vorgegebene Weglänge gegenüber dem Verriegelungsmittel bewegt wird; und
• nach dem Bewegungsschritt der Auslöseschritt und der Detektionsschritt wiederholt werden.

The object is achieved by a method for operating a sliding door system, comprising a door drive with a traction device designed as a toothed belt, a sliding door running gear with a movable carriage for a sliding door element, which is coupled to the traction device, and a locking device for locking the door drive, the locking device has at least one locking means, which can be moved back and forth between a release position and a locking position, with a locking section of the locking means interacting with the traction means in a form-fitting manner in the locking position, with the following method steps:

• In a triggering step, a locking command for moving the locking means into the locking position is transmitted to the locking device; and
• in a detection step following the triggering step, the position of the locking means is detected by means of a position sensor of the locking device, and wherein
• in a movement step following the detection step, the traction means is moved by a predetermined distance relative to the locking means; and
• after the moving step, the triggering step and the detecting step are repeated.

According to a first idea of the invention, the movement of the locking means into its locked position is triggered by the locking command and the position of the locking means is then detected. This makes it possible to determine whether the locking means is actually in its locking position as a result of the locking command, in which the locking means interacts in a form-fitting manner with the traction means designed as a toothed belt, or whether a form-fit connection between the traction means and the locking means is not possible in the current position of the traction means. This detection makes it possible to recognize a form-fitting locking of the door drive and, if there is no form-fitting locking, to initiate appropriate countermeasures without the need for a fitter to do this. In particular, with the method according to the invention it is not necessary to manually adjust the locking system after the installation of the individual components in order to ensure that the door drive can be locked. The effort involved in installing and setting up the locking system is reduced. Furthermore, this enables Procedure for readjusting the locking system during operation without manual intervention.

• In einem dem Detektionsschritt nachfolgenden Bewegungsschritt wird das Zugmittel um eine vorgegebene Weglänge gegenüber dem Verriegelungsmittel bewegt; und
• nach dem Bewegungsschritt werden der Auslöseschritt und der Detektionsschritt wiederholt.

The method according to the invention also has the following method steps:

• In a movement step that follows the detection step, the traction means is moved by a predetermined distance relative to the locking means; and
• after the moving step, the triggering step and the detecting step are repeated.

These method steps are preferably carried out when it has been detected in the detection step that the locking means is not in the locking position. Such a case can occur, for example, when form-fitting elements, in particular teeth, of the locking section cannot engage in corresponding form-fitting elements, in particular teeth, of the traction means, for example because they are not correctly aligned with one another. By moving the traction means by a predetermined distance, the locking section and traction means, in particular their positive-locking elements, can be aligned with one another. The predetermined path length is preferably in the range from 0.5 mm to 5 mm, for example 0.5 mm, 1 mm or 2 mm. Following the movement step, the triggering step and the detection step are repeated in order to check again whether the door drive can be locked in the changed position of the traction element. This sequence of movement step, triggering step and detection step can optionally be repeated several times in order to align the locking section of the locking means and the traction means with one another.

In this context it is preferred if the movement step, the triggering step and the detection step are repeated until it has been detected in the detection step that the locking means is in the locking position. As a result of this multiple movement of the traction mechanism and subsequent checking of the correct alignment in the detection step, the locking system can automatically set a position of the traction mechanism in which the door drive can be locked.

According to an advantageous embodiment of the invention, the position of the traction means is determined in the movement step via a displacement sensor of an electric motor of the door drive. The accuracy when moving the traction means by the specified distance can be increased by the travel sensor. For example, the movement of the traction means can be made possible by a control loop, to which the position determined by the displacement encoder, in particular as a controlled variable, is fed.

An advantageous embodiment provides that the locking means has a carrier element, relative to which the locking section is movably mounted, the locking section being subjected to a restoring force, in particular by a spring element. This makes it possible to bring the locking means into its locking position when the carriage of the sliding door system is in a pre-closed position in which the closed position has not yet been fully reached, in particular when the sliding door system is open a little. Starting from this pre-closing position, the traction means can be moved in order to move the carriage of the sliding door system in the direction of the closed position, ie to close the sliding door system completely. In doing so, he will Locking section moves against the restoring force of the spring element. The restoring force can enable the locking section to be automatically returned to an initial position when the locking is released. The locking section can preferably be moved parallel to a direction of movement of the traction means with respect to the carrier element, so that a position of the locking section with respect to the traction means can be changed along the direction of movement of the traction means. A guide element, for example a linear guide element, is preferably arranged on the carrier element for guiding the locking section. Alternatively, the locking section can be firmly connected to the carrier element, so that it cannot be moved relative to the carrier element. In such a configuration, the locking section is preferably formed in one piece with the carrier element.

According to a preferred embodiment, the locking means is mounted so that it can move linearly between the release position and the locking position, in particular perpendicular to a direction of movement of the traction means. A linear mobility of the locking means can reduce the risk of the locking means jamming with the traction means, in particular during a movement from the locking position into the release position, when the traction means is subjected to a force in its direction of movement. An alternative preferred embodiment provides that the locking means is mounted pivotably about a pivot axis for movement between the release position and the locking position.

Provision is preferably made for the position sensor to detect the position of the locking means to detect a position of a rotor of a linear motor that is coupled to the locking means. The linear motor may be provided as part of the locking device to reciprocate the locking means between the locking position and the release position. By detecting the position of the runner, the position of the locking means can be determined indirectly. The runner and the locking means are preferably coupled by means of a link mechanism, the link mechanism comprising at least one guide slot and one control element guided in the guide slot. The locking means is preferably coupled to the runner via the link mechanism in such a way that a movement of the runner parallel to the direction of movement of the traction means results in a movement of the locking means perpendicular to the direction of movement of the traction means or in a pivoting movement about the pivot axis. In this context, it is preferred if the link mechanism comprises two, in particular identical, guide links and two control elements each guided in one of the guide links. By providing two guide links and corresponding control elements, the risk of the locking means tipping or canting in relation to the traction means can be reduced. In addition, it is possible to transmit higher forces via the two control elements and guide links than via a single control element guided in a single guide link. The at least one guide link is preferably arranged on the locking means, in particular on a carrier element of the locking means, and the control element guided in the guide link is arranged on the runner. This enables a compact arrangement to be made possible. Alternatively it can be provided that the guide link on the runner and the control on the Locking means is provided. It is advantageous if the linear motor has a stator core, in relation to which the runner can be moved translationally, the stator core having three, preferably exactly three, stator teeth which are spaced apart from one another in a direction of movement of the runner, and the runner has two, preferably exactly two, Has permanent magnets with opposite directions of magnetization. In such a linear motor, the runner can be switched over between two end positions for moving the locking means between the locking and the release position. The rotor can engage in the two end positions and hold this position against a defined external force until it is switched over by energizing a coil of the stator and changes to the other end position. In this respect, such a linear motor has bistable operation, with the end positions of the runner corresponding to the locking position and the release position of the locking means.

It is particularly preferred if the position sensor comprises a first detector, in particular a detection contact, for detecting the runner in a first position and a second detector, in particular a detection contact, for detecting the runner in a second position. The first position preferably corresponds to the locking position of the locking means and the second position corresponds to the release position of the locking means.

• In einem Speicherschritt wird die Position des Zugmittels dann als Verriegelungs-Referenzposition gespeichert, wenn in dem Detektionsschritt detektiert worden ist, dass sich das Verriegelungsmittel in der Verriegelungsstellung befindet.

According to an advantageous embodiment, the following method step is additionally provided:

• In a storage step, the position of the traction device is then stored as a locking reference position when in the Detection step has been detected that the locking means is in the locking position.

According to this embodiment, if it was determined in the detection step that the locking means was brought into the locking position, ie there is a form fit, the current position of the traction means is stored as the locking reference position. This locking reference position can be used to control the traction mechanism and/or the locking mechanism. In this respect, it is possible to determine a locking reference position without the manual intervention of a fitter and to save this for further operation of the locking system.

• In einem Berechnungsschritt wird in Abhängigkeit von der gespeicherten Verriegelungs-Referenzposition die weitere Verriegelungsposition berechnet;
• in einem weiteren Bewegungsschritt wird das Zugmittel in Richtung der weiteren Verriegelungsposition bewegt; und
• in einem weiteren Auslöseschritt wird ein Verriegelungsbefehl zum Bewegen des Verriegelungsmittels in die Verriegelungsstellung an die Verriegelungseinrichtung übermittelt.

According to the invention, it is provided that the following method steps for locking the door drive are carried out in a further locking position of the traction mechanism that is not identical to the locking reference position:

• In a calculation step, the further locking position is calculated as a function of the stored locking reference position;
• in a further movement step, the traction mechanism is moved in the direction of the further locking position; and
• in a further triggering step, a locking command for moving the locking means into the locking position is transmitted to the locking device.

The further locking position can be calculated on the basis of the previously determined locking reference position. A predetermined tooth pitch, ie the distance between two adjacent teeth, of the traction mechanism can also be used for this calculation so that the locking position is determined as a function of the locking reference position and the tooth pitch.

An embodiment is advantageous in which the locking command is transmitted when the traction mechanism has assumed the further locking position. In this respect, the door drive can be locked when the door drive or the traction mechanism is stationary.

According to an alternative embodiment, it is provided that the locking command is transmitted when the traction mechanism has reached or fallen below a predetermined distance from the further locking position. In such a configuration, the door drive can be locked from the movement of the traction means. The locking command is preferably transmitted when the traction means, while it is in motion, has reached or fallen below a predetermined distance from the further locking position. If the teeth of the locking means should stand on the teeth of the traction means and the locking means has a carrier element, relative to which the locking section is movably mounted, the mass inertia of the sliding door element can contribute to the teeth of the locking means latching between the teeth of the traction means. In this respect, the locking means can slide over the teeth into the locking position. Alternatively it can be provided that the teeth of the locking means engage between the teeth of the traction means before
the carriage of the sliding door system is in the closed position, in particular with the sliding door system being open a little. As soon as the locking section has snapped into the teeth of the traction mechanism, an electric motor of the door drive can pull the traction mechanism together with the locking section against the restoring force move the spring element in order to move the sliding door system into its closed position.

• In einem Auslöseschritt wird ein Verriegelungsbefehl zum Bewegen des Verriegelungsmittels in die Verriegelungsstellung an die Verriegelungseinrichtung übermittelt; und
• in einem dem Auslöseschritt nachfolgenden Detektionsschritt wird mittels eines Stellungssensors der Verriegelungseinrichtung die Stellung des Verriegelungsmittels detektiert,
• in einem dem Detektionsschritt nachfolgenden Bewegungsschritt das Zugmittel um eine vorgegebene Weglänge gegenüber dem Verriegelungsmittel bewegt wird; und
• nach dem Bewegungsschritt der Auslöseschritt und der Detektionsschritt wiederholt werden.

Another subject matter of the invention is a sliding door system comprising a door drive with a traction means designed as a toothed belt, a sliding door running gear with a movable carriage for a sliding door element, which is coupled to the traction means, and a locking device for locking the door drive, the locking device having at least one locking means , which can be moved back and forth between a release position and a locking position, wherein a locking section of the locking means interacts in a form-fitting manner with the traction means in the locking position, the sliding door system being set up to carry out the following method steps:

• In a triggering step, a locking command for moving the locking means into the locking position is transmitted to the locking device; and
• in a detection step that follows the triggering step, the position of the locking means is detected by means of a position sensor of the locking device,
• in a movement step following the detection step, the traction means is moved by a predetermined distance relative to the locking means; and
• after the moving step, the triggering step and the detecting step are repeated.

The same advantages can be achieved in the locking system as have already been described in connection with the method according to the invention.

Fig. 1

eine Schiebetüranlage in einer schematischen Darstellung;

Fig. 2a

eine Verriegelungseinrichtung in einer perspektivischen Darstellung;

Fig. 2b

die Verriegelungseinrichtung nach Fig. 2a in einer perspektivischen Schnittdarstellung;

Fig. 2c

die Verriegelungseinrichtung nach Fig. 2a in einer Schnittdarstellung;

Fig. 3a

den Verriegelungsantrieb der Verriegelungseinrichtung nach Fig. 2a in einer perspektivischen Darstellung;

Fig. 3b

den Verriegelungsantrieb nach Fig. 3a ohne Gehäuse in einer perspektivischen Darstellung;

Fig. 3c

den Verriegelungsantrieb nach Fig. 3a in einer perspektivischen Schnittdarstellung;

Fig. 3d

den Verriegelungsantrieb nach Fig. 3a in einer Schnittdarstellung;

Fig. 3e

den Verriegelungsantrieb nach Fig. 3a in einer Seitenansicht;

Fig. 4a

den Stator des Verriegelungsantriebs nach Fig. 3a in einer perspektivischen Darstellung;

Fig. 4b

den Stator nach Fig. 4a in einer perspektivischen Schnittdarstellung;

Fig. 4c

den Stator nach Fig. 4a in einer ersten Seitenansicht;

Fig. 4d

den Stator nach Fig. 4a in einer zweiten Seitenansicht;

Fig. 5a

den Läufer des Verriegelungsantriebs nach Fig. 3a in einer perspektivischen Darstellung;

Fig. 5b

den Läufer nach Fig. 5a in einer perspektivischen Schnittdarstellung;

Fig. 5c

den Läufer nach Fig. 5a in einer gegenüber der Fig. 5a gedrehten perspektivischen Darstellung;

Fig. 6a

den Verriegelungsantrieb nach Fig. 3a in einer Schnittdarstellung, wobei eine erste Betriebsart-Feder eingesetzt ist;

Fig. 6b

den Verriegelungsantrieb nach Fig. 3a in einer Schnittdarstellung, wobei eine zweite Betriebsart-Feder eingesetzt ist;

Fig. 7a

die Verriegelungseinrichtung nach Fig. 2a in einer perspektivischen Darstellung mit entferntem Verriegelungsmittel;

Fig. 7b

die Verriegelungseinrichtung nach Fig. 7a in einer perspektivischen Schnittdarstellung;

Fig. 8a

die Verriegelungseinrichtung nach Fig. 2a in einer Draufsicht mit entferntem Gehäuseoberteil, wobei sich das Verriegelungsmittel in einer Freigabestellung befindet;

Fig. 8b

die Verriegelungseinrichtung nach Fig. 8a, wobei sich das Verriegelungsmittel in einer Verriegelungsstellung befindet;

Fig. 9a

die Verriegelungseinrichtung nach Fig. 8b in einer teilweisen Schnittdarstellung;

Fig. 9b

die Verriegelungseinrichtung nach Fig. 9a in einer teilweisen Schnittdarstellung, wobei die Stellung des Verriegelungsabschnitts gegenüber der Darstellung in Fig. 9a verändert ist;

Fig. 10a-f

verschiedene Darstellungen einer Verriegelungseinrichtung gemäß einem alternativen Ausführungsbeispiel;

Fig. 11a-c

verschiedene Darstellungen einer Verriegelungseinrichtung gemäß einem weiteren, alternativen Ausführungsbeispiel;

Fig. 12a

eine schematische Darstellung eines Zugmittels und eines Verriegelungsmittels in einer Freigabestellung;

Fig. 12b

eine schematische Darstellung eines Zugmittels und eines Verriegelungsmittels in einer Zwischenstellung zwischen der Freigabestellung und der Verriegelungsstellung, in der ein Formschluss nicht möglich ist;

Fig. 12c

eine schematische Darstellung eines Zugmittels und eines Verriegelungsmittels in einer Verriegelungsstellung;

Fig. 13

einen Stellungssensor in einer perspektivischen Darstellung;

Fig. 14

ein Ablaufdiagramm eines ersten Ausführungsbeispiels eines Verfahrens zum Betrieb einer Schließanlage;

Fig. 15

ein Ablaufdiagramm eines zweiten Ausführungsbeispiels eines Verfahrens zum Betrieb einer Schließanlage;

Fig. 16

ein Ablaufdiagramm eines dritten Ausführungsbeispiels eines Verfahrens zum Betrieb einer Schließanlage; und

Fig. 17

ein weiteres Ausführungsbeispiel eines Führungskulisse einer Kulissenmechanik.

Further advantages and details of the invention are to be explained below with reference to the exemplary embodiments illustrated in the drawings. Herein shows

1

a sliding door system in a schematic representation;

Figure 2a

a locking device in a perspective view;

Figure 2b

the locking device Figure 2a in a perspective sectional view;

Figure 2c

the locking device Figure 2a in a sectional view;

Figure 3a

the locking drive of the locking device Figure 2a in a perspective view;

Figure 3b

the locking drive Figure 3a without housing in a perspective view;

3c

the locking drive Figure 3a in a perspective sectional view;

3d

the locking drive Figure 3a in a sectional view;

Figure 3e

the locking drive Figure 3a in a side view;

Figure 4a

the stator of the locking drive Figure 3a in a perspective view;

Figure 4b

the stator Figure 4a in a perspective sectional view;

Figure 4c

the stator Figure 4a in a first side view;

Figure 4d

the stator Figure 4a in a second side view;

Figure 5a

the rotor of the locking drive Figure 3a in a perspective view;

Figure 5b

the runner after Figure 5a in a perspective sectional view;

Figure 5c

the runner after Figure 5a in one opposite the Figure 5a rotated perspective view;

Figure 6a

the locking drive Figure 3a in a sectional view, with a first mode spring is used;

Figure 6b

the locking drive Figure 3a in a sectional view, with a second mode spring is used;

Figure 7a

the locking device Figure 2a in a perspective view with removed locking means;

Figure 7b

the locking device Figure 7a in a perspective sectional view;

Figure 8a

the locking device Figure 2a in a plan view with the upper housing part removed, the locking means being in a release position;

Figure 8b

the locking device Figure 8a wherein the locking means is in a locking position;

Figure 9a

the locking device Figure 8b in a partial sectional view;

Figure 9b

the locking device Figure 9a in a partial sectional view, the position of the locking section compared to the representation in Figure 9a is changed;

Fig. 10a-f

various representations of a locking device according to an alternative embodiment;

Fig. 11a-c

various representations of a locking device according to a further alternative embodiment;

12a

a schematic representation of a traction means and a locking means in a release position;

Figure 12b

a schematic representation of a traction means and a locking means in an intermediate position between the release position and the locking position in which a form fit is not possible;

Figure 12c

a schematic representation of a traction means and a locking means in a locking position;

13

a position sensor in a perspective view;

14

a flowchart of a first exemplary embodiment of a method for operating a locking system;

15

a flow chart of a second exemplary embodiment of a method for operating a locking system;

16

a flowchart of a third exemplary embodiment of a method for operating a locking system; and

17

another exemplary embodiment of a guide link of a link mechanism.

In the 1 a sliding door system 1 is shown in a schematic representation. The sliding door system 1 comprises a sliding door element 6 and a door drive 9, via which the sliding door element 6 can be moved by a motor, for example between an in 1 shown closed position, in which the sliding door element 6 is arranged in a door opening, and an open position, in which the sliding door element 6 is arranged at least partially behind a wall element 7 and thereby releases the door opening. According to the exemplary embodiment, the door drive 9 is arranged above the sliding door element 6 of the sliding door system 1 . But it is It is also conceivable that the door drive 9 is alternatively arranged below the sliding door element 6, for example between the sliding door element 6 and a floor 8 or within the floor 8 below the sliding door element 6.

The door drive 9 of the sliding door system 1 comprises an electric motor 2 and a traction device 3. The traction device 3 is coupled to the electric motor 2, in particular to a machine shaft or a pinion of the electric motor 2, in such a way that the traction device 3 can be driven by the electric motor 2. The traction means 3 is designed as an endless traction means 3 . According to the exemplary embodiment, the traction means 3 is a belt designed as a toothed belt. Alternatively, the traction means 3 can be configured as a cable or a chain or a flat belt or a V-belt. The traction mechanism 3 is guided around a deflection element 4, for example a deflection roller, a deflection wheel or a deflection pinion. The deflection element 4 is arranged on a side of the door drive 9 which is opposite the electric motor 2 .

Another element of the sliding door system is a sliding door drive with a movable carriage 5 for the sliding door element 6. The movable carriage 5 is coupled to the traction mechanism 3 of the door drive 9 in such a way that the carriage 5 together with the sliding door element 6, starting from the in 1 shown closed position over a distance in at least one predetermined open position can be moved.

For the sliding door system according to 1 a locking device 10 for locking the door drive 9 is also provided. The locking device 10 has a locking means which can be moved back and forth between a release position and a locking position. is in the release position the traction mechanism 3 is released and can be driven by the electric motor 2 . In the locking position, a locking section of the locking means is frictionally and/or positively engaged with the traction means 3, so that the carriage 5 coupled to the traction means 3 and thus also the sliding door element 6 are locked. It is not necessary to arrange the locking device 10 in the area of the electric motor 2 or in the area of the deflection element 4, so that the locking device can be arranged at a freely selectable point along the traction mechanism 3, for example - as in 1 shown - next to the electric motor 2.

The representations in Figure 2a , Figures 2b and 2c show a locking device 10 in the sliding door system 1 can find use. The locking device 10 comprises a housing 11 which has two traction mechanism recesses 12.1, 12.2, in which the traction mechanism 3 designed as a toothed belt can be arranged. The locking section 14 of the movable locking means 13 projects out of the housing 10 on an inner contour of a first traction mechanism recess 12.1. in the in Figure 2a locking position shown, the locking section 14 acts together with the traction means 3 in a non-positive and positive manner. The inner contour of the first traction means recess 12.1 opposite the locking section 14 forms a stop 16 for the traction means 3. In the locking position of the locking means 13, this presses the traction means 3 against the stop 16, so that the traction means 3 is in contact with the stop 16 .

The locking section 14 has a plurality of teeth, the outer contour of which is adapted to the outer contour of the teeth of the toothed belt is. In the locking position, these teeth of the locking section 14 are in engagement with the teeth of the traction mechanism 3.

The representations in Fig. 2a-c can also be seen that the housing 11 has a multi-part structure. The multi-part housing 11 comprises a first housing part 11.1, which forms a first housing interior 11.4, in which a locking drive 20 is arranged. A second housing part 11.2 has a housing wall 17 which separates the first housing interior 11.4 from a second housing interior 11.5. In the second housing interior 11.5, which is enclosed by the second housing part 11.2 and the third housing part 11.3, a locking mechanism 30 is arranged, which includes the locking means 13, among other things.

The representations in Figure 3a -e show details of the locking drive of the locking device 10. The locking drive is designed as a linear motor 20. The housing 11, in particular the first and the second housing part 11.1, 11.2 of the locking device 10 form a housing of the linear motor 20. The linear motor 20 also has a stator 21 arranged in the housing 11 and a runner 24 which can be moved translationally relative to the stator 21 below using the illustrations in 4 and 5 be explained.

As the illustrations in Fig. 3a-e can be removed, the rotor 24 is mounted movably by means of a plurality of roller bearings 26 arranged on the stator 21 and/or on the housing 11, exactly four here. The runner 24 can be moved in a direction parallel to the direction of movement B of the traction means 3 via the roller bearings 26, cf. Figure 2a . The roller bearings 26 each have an inner bearing ring 26.1 and a against the inner bearing ring 26.1 rotatable outer bearing ring 26.2, which rests on a rolling surface 24.1 of the rotor 24. The inner bearing ring 26.1 of the roller bearing 26 is fastened to a fastening element 27, which is designed as an axle. In this respect, two roller bearings 26 are fastened to a common fastening element 27 in each case. The fastening elements 27 are arranged in a stator recess 21.1 in the stator 21 and in a housing recess 11.6 in the housing 11.

Based on the illustrations in Figure 4a -d details of the stator 21 of the linear motor 20 will be explained below. The stator 21 includes a stator core 22 which is designed as a laminated core. The stack of laminations is formed from a number of individual laminations which have an identical cross section, here an E-shaped cross section. The individual sheets are preferably made of a soft magnetic material, for example iron or steel. The individual sheets are preferably not isolated from one another. The stator core 22 forms a total of exactly three stator teeth 22.1, 22.2, which are spaced apart from one another in the direction of movement B of the rotor 24, ie also in the direction of movement B of the traction means 3. A first stator tooth 22.1 is arranged between two second stator teeth 22.2. A coil receptacle is formed between the first stator tooth 22.1 and the two second stator teeth 22.2, in which the coil 22 of the stator 21 is accommodated. The first stator tooth 22.1 has a first tooth width Z1 which is larger than a second tooth width Z2 of the second stator teeth 22.2. The two second stator teeth 22.2 each include a stator recess 21.2, in which one of the fastening elements 27 designed as axles is arranged. The recesses 21.1 are each as circular recesses in the laminated core of Stator core 22 or the individual laminations of the stator core 22 are formed. In addition, a chamfer is provided on the free ends of the second stator teeth 22.2, which is arranged on an edge of the respective second stator tooth 22.2 that faces the first stator tooth 22.1.

To produce the stator, the individual laminations of the stator core 22 can be slipped onto the fastening elements 27 . In a further step of the manufacturing process, the roller bearings 26 can be applied to the free ends of the fastening elements 17 . The assembly of the stator core 22, fastening elements 27 and roller bearings 26 can then be introduced into the housing 11, in particular into a stator receptacle of the housing 11. The coil 23 is preferably connected to the stator core 22 before it is introduced into the housing. Alternatively, the coil 23 may be connected to the stator core 22 after the stator core 22 is inserted into the case 11 .

In Figure 5a -c the rotor 24 of the linear motor 20 is shown. The rotor 24 is plate-shaped and has an underside that faces the stator 22 when the linear motor 20 is in the assembled state. The rotor 24 is preferably made of a soft magnetic material, for example iron or steel.

One or more rolling surfaces 24.1 for the roller bearings 26 are provided on the underside, cf. Figure 5c . A plurality of permanent magnets 28, in this case exactly two, are also arranged on the underside of the rotor. The permanent magnets 28 are provided spaced apart from one another in the direction of movement B of the rotor 24 or of the traction means 3 and have opposing directions of magnetization. The directions of magnetization of the two permanent magnets 28 are aligned perpendicularly to the surface of the underside, ie perpendicularly to the rolling surfaces 24.1. Both permanent magnets 28 have an identical permanent magnet width PM. This permanent magnet width PM is selected such that a ratio of the permanent magnet width PM to the first tooth width Z1 is greater than 1, preferably greater than 1.1, particularly preferably greater than 1.2, for example 1.4. By supporting the rotor 24 by means of the roller bearings 26, it can be ensured that the permanent magnets 28 of the rotor 24 are separated from the stator core 22 by an air gap, cf 3d .

On an upper side of the runner 24 opposite the underside, two control elements 25 are provided, which are designed as axes projecting perpendicularly from the runner 24, cf. Figures 5a and 5b . The locking mechanism 30 of the locking device 10 is controlled via these control elements 25 . A first guide roller bearing 41 and a second guide roller bearing 42 arranged above the first guide roller bearing are fastened to the control elements 25 . The first guide roller bearing 41 is accommodated in the linear motor 20 in a guide opening 18 designed as a slot in the housing wall 17 . The first guide roller bearing 41, in particular a bearing ring of the first guide roller bearing 41 which is rotatable relative to the control element 25, can roll on an inner contour of the guide opening 18, cf Figures 2b, 2c . When the locking device 10 is in the assembled state, the second guide roller bearing 42 of the control element interacts with the locking means 13 . For this purpose, the second guide roller bearing 42 is accommodated in a guide link 19 of the locking means 13 . Here, a relative to the control 25 rotatable bearing ring of the second Guide roller bearing 42 roll on an inner contour of the guide link 19, see eg Figures 2b, 2c .

The representations in Figures 6a and 6b each show a plan view of the linear motor 20 of the locking device 10, in particular of the upper side of the runner 24 of the linear motor 20. The two illustrations show two end positions of the runner 24, which correspond to the release position and the locking position of the locking means 13. If the bishop 24 takes the in Figure 6a shown, first position, the coupled to the runner 24 locking means 13 is in its locking position. If the rotor 24 is in the in Figure 6b shown, second position, the locking means 13 is arranged in its release position. For switching the locking means 13 between the release position and the locking position, the linear motor 20 can snap into the end positions shown in a stable manner without spring force and can also hold this end position against a defined external force. By energizing the coil, you can switch between the two end positions. In this respect, the linear motor 20 enables bistable operation.

In comparison to a lifting magnet or holding magnet, the linear motor 20 enables a larger lifting range of the rotor 24 with at the same time a large force over the lifting range. In this respect, the linear motor can perform a significantly higher mechanical work in comparison to a lifting or holding magnet with the same construction volume. Furthermore, the linear motor 20 has a lower energy requirement since the coil 23 of the linear motor 20 only has to be energized when switching between the two end positions of the runner 24 .

In order to enable operation of the linear motor 20 with a preferred direction as an alternative to bistable operation, the runner 24 has at least one connection area 24.2, 24.3 for an operating mode spring element 43, 44, via which the runner 24 can be prestressed into an end position. In the exemplary embodiment shown, two connection areas 24.2, 24.3 for such operating mode spring elements 43, 44 are provided on the rotor.

To a first connection area 24.2, as in Figure 6a shown, a first operating mode spring element 43 can be connected in order to enable a failsafe operation. This first operating mode spring element 43 prestresses the runner 24 in a fail-secure end position, the runner 24 being coupled to the locking means 13 in such a way that the locking means 13 is arranged in the fail-secure end position of the runner 24 in its locked position. For the alternative implementation of a failsafe mode, a second operating mode spring element 44 is connected to the second connection area 24.3. The second operating mode spring element 44 prestresses the runner 24 in a fail-safe end position. The runner 24 is coupled to the locking means 13 in such a way that the locking means 13 is arranged in the fail-safe end position of the runner 24 in its release position.

The representations in Figures 7a and 7b show the locking device 10, the locking mechanism 30, in particular the locking means 13, the third housing part 11.3 and the traction means 13, for better visibility of the linear motor 20, are not shown. It can be seen that the two control elements 25 of the rotor 24 are arranged to run through two separate guide openings 18 in the housing wall 17 . The respective arranged on the controls 25 first guide roller bearing 41 can the inner contour of the respective guide opening 18 are unrolled. In the event of vandalism, ie when a force is exerted on the locking means 13 via the sliding door element 6, the guide openings 18 can absorb forces from the control elements 25 and introduce them into the housing 11, in particular the second housing part 11.2. In this way, the linear motor 20, in particular the rotor 24 of the linear motor 20 connected to the control elements 25, can be protected from damage.

The first housing part 11.1 forming the first housing interior 11.4 has walls which form a first stop for the runner 24 of the linear motor 20 in a first end position and a second stop for the runner 24 in a second end position.

Based on Figures 8a and 8b shall subsequently be the locking mechanism 30 of the in Figures 2-7 shown locking device 10 are described in more detail. The locking mechanism 30 comprises a locking means 13 which is located between the in Figure 8a shown release position and in Figure 8b locking position shown is movable back and forth. The locking means has a locking section 13 and a carrier element 15 carrying the locking section 14 . In the locking position, the locking section 14 of the locking means 13 interacts with the traction means 3 in a non-positive and/or positive manner and thus locks both the traction means 3 and the carriage 5 of the sliding door system 1 that is coupled to the traction means 3. In the release position, however, the locking section 14 is arranged at a distance from the traction means 3, so that the traction means and thus also the carriage 5 is released and can move along the direction of movement B. is in the release position thus no positive and / or non-positive connection between locking means 13 or section 14 and the traction means 13 before.

In the exemplary embodiment, the locking means 13 can be moved linearly between the locking position and the release position. For this purpose, the locking means 13 is mounted in a linearly movable manner in the second housing interior 11.5. The linear movement of the locking means 13 takes place in a locking direction V, which is arranged perpendicular to the direction of movement B of the traction means 3 . Furthermore, the locking means 13, in particular the carrier element 15, has two guide links 19 which, together with the control elements 25 of the runner 24, form a link mechanism, via which the locking means 13, as a result of a movement of the runner 24 parallel to the direction of movement B of the traction means 3, is set into a movement in the Locking direction V is offset. The two guide links 19 are of identical design, so that an undesired tilting of the locking element 13 can be prevented.

The guide links 19 have a non-linear course, so that a movement of the runner 24 parallel to the direction of movement B of the traction mechanism 3 by a predetermined distance does not result in a movement of the locking means 13 perpendicular to the direction of movement B in all areas between the end positions of the runner 24 the same distance is implemented. Rather, the non-linear course of the guide links is selected such that, starting from the release position of the locking means 13, a relatively small movement of the runner 24 is initially converted into a relatively large movement of the locking means 13. In this respect, a steep course of the guide slot 19 is chosen. In this way it can be achieved that the locking means 13 quickly moves to the traction means 3 approaching. Thus, in the area close to the release position, there is a large stroke translation and a low force translation. In the direction of the locking position, this relatively steep course of the guide slot transitions into a flatter course, so that a movement of the runner 24 results in a smaller movement of the locking means 13 . In the area of the locking position, there is therefore a high power transmission and a low stroke transmission, so that the locking section 14 of the locking means 13 can engage the traction means 3 with great force and lock it. Optionally, the guide link in the area of the locking position can have a profile that is aligned parallel to the direction of movement of the traction device 3, so that there is an increased support effect against forces acting from the outside on the traction device 3 or the locking device 13.

As in Figures 9a and 9b As can be seen, the locking section 14 of the locking means 13 is movably mounted relative to the carrier element 15 . The locking section 14 is movably mounted on the carrier element 15 parallel to the direction of movement B of the traction means 3, preferably in a guide on the carrier element 15. A spring element 31 is also provided, which acts on the locking section 14 with a restoring force. According to the exemplary embodiment, the spring element 31 acts on the locking section 14 with a restoring force in the direction away from the closed position of the sliding door system 1 . If the locking means 13 is moved towards its locking position and the teeth of the locking section 14 are fully in engagement with the corresponding recesses between the teeth of the traction means 3, the locking section 14 can move together with the traction means 3 against the bias of the spring element 31 relative to to the Carrier element 15 move. The locking means 3 can thus be brought into its locking position when the carriage 5 of the sliding door system 1 is in a pre-closed position in which the closed position has not yet been fully reached, in particular when the sliding door system is open a little. Starting from this pre-closing position, the traction means 3 can be moved in order to move the carriage 5 of the sliding door system 1 in the direction of the closed position, ie in order to completely close the sliding door system. In this case, the locking section 14 is moved counter to the restoring force of the spring element 31 . Spring element 31 or locking section 14 and/or carrier element 15 are preferably dimensioned in such a way that the locking section can be moved relative to carrier element 15 by at least a travel distance that corresponds to a distance between two adjacent teeth of traction mechanism 3 (tooth pitch). When the locking means 13 moves from the locking position in the direction of the release position, the locking section 14 can then be moved back into its initial position by the spring element 31 .

The representations in Figure 10a -f show a locking device 10 according to an alternative embodiment, which is also suitable for the sliding door system 1 according to 1 to come into use. The locking device 10 according to this alternative exemplary embodiment essentially corresponds to the locking device according to the first exemplary embodiment, which is why reference is made to the above description of the first exemplary embodiment. In contrast to the first exemplary embodiment, the locking device 10 according to the alternative exemplary embodiment has the locking means 13 for moving between the release position and the locking position pivoted about a pivot axis S. the Figures 10c and 10d show the locking device 10 with the locking means 13 being in the release position. In the representations after Figures 10e and 10f the locking means 13 is in the locked position. In addition, the locking means 13 or the carrier element 15 of the locking means 13 has only exactly one guide link 19 . Accordingly, according to this alternative exemplary embodiment, only one control element 25 is provided on the runner 24 of the linear motor 20, which is in engagement with one guide link 19 in order to pivot the locking means 13.

According to this alternative exemplary embodiment, the locking means 13 is dimensioned and arranged in such a way that the ratio of the distance D1 between the locking section 14 and the pivot axis S to the distance D2 between the traction means 3 and the pivot axis S is at least 3:1, particularly preferably at least 4:1 , amounts to.

Another alternative embodiment of a locking device 10 is in Figure 11a -c shown. The locking device 10 according to this exemplary embodiment corresponds essentially to the locking device according to FIG 10 , wherein in contrast to the locking device according to 10 two guide links 19 and two controls 25 are provided.

In the following, based on the illustrations in 12-17 details of the operation of a sliding door system 1 described above will be discussed, which has a door drive 9 with a traction mechanism 3 designed as a toothed belt, which interacts with the traction mechanism 3 in a form-fitting manner in the locking position. At this Sliding door system 1 it is necessary that the form-fitting elements, here teeth, of the locking means 13 and the traction means 3 are aligned with one another in order to achieve a form fit between the locking means 13 and traction means.

According to the illustration in 12a a locking means 13 is shown in a release position, in which the locking means 13 is arranged at a distance from the traction means 3 . The locking means 13 according to this exemplary embodiment has a locking section 14 which is formed in one piece with the carrier element 15 . The distance between adjacent teeth of the traction mechanism 3 is referred to as the tooth pitch T below.

The representation in Figure 12b shows the case that the locking means 13 from FIG 12a shown release position is moved along the locking direction V and the traction means 3 in the position according to 12a is located, so that an engagement of the locking portion 14, in particular the teeth of the locking portion 14, in the recesses between the teeth of the traction means 3 is not possible. A form fit between the locking means 13 and the traction means 3 cannot be achieved in this position of the traction means 3 .

In the representation in Figure 12c a locking position of the traction means 3 is shown, in which the teeth of the traction means 3 are aligned with the teeth of the locking means 13 such that they can be moved along the locking direction V into the recesses between the teeth of the traction means 3. A form fit between locking means 13 and traction means 3 is achieved.

The representation in 13 shows an embodiment of a locking device 10, which has a position sensor 50 for detecting a position of the locking means 13. To detect the position of the locking means 13, the position sensor 50 detects the position of the runner 24 of the linear motor 20. In this respect, the position of the locking means 13 is detected indirectly. A first detection area 53 of the position sensor 50 is fixedly connected to the runner 24 and moves with the runner 24 in its movement along a direction parallel to the direction of movement of the traction means 3 . The position sensor 50 also includes a first detector 51 for detecting the runner 24 in a first position or first end position and a second detector 52 for detecting the runner 24 in a second position or second end position. The first position of the runner 24 corresponds to the locking position of the locking means 13 and the second position of the runner 24 corresponds to the release position of the locking means 13. The detectors 51, 52 are arranged at a distance from one another and are fixedly connected to the housing 11 of the locking device 10, so that the first Detection area 53 is moved between the two detectors 51, 52 when the rotor 24 moves between its end positions.

The first and the second detector 51, 52 are preferably designed as detection contacts. Alternatively it can be provided that the detectors 51, 52 are designed as light barriers.

According to the 13 In the exemplary embodiment shown, the position sensor 50 has a second detection area 54 which is firmly connected to the rotor 24 . The second detection area 54 is arranged on the runner 24 in such a way that in the first position of the runner 24, which corresponds to the locking position of the locking means 13, interacts with a switch, not shown in the drawings, in particular a microswitch. The switch is preferably a switch that does not require a power supply for operation, so that the locked position of the locking means 13 can also be detected in the event of a power failure by means of the second detection area 54 and the switch.

In the 14 a flowchart of a method for operating a sliding door system 1 is shown, in which a locking reference position of the traction mechanism 3 is determined and stored. In an initial step 101, the sliding door element 6 is in its closed position. In a pressing step 102, the sliding door element 6 is pressed in the direction of its closed position, in particular with a predetermined pressing force. In a subsequent triggering step 103, a locking command for moving the locking means 13 into the locking position is then transmitted to the locking device 10. The linear motor 20 is then actuated, so that the runner 24 of the linear motor 20 moves from its one end position to its other end position, thereby moving the locking means 13 from the release position towards its locking position.

In a detection step 104 that follows the triggering step 103 , the position of the locking means 13 is detected by means of a position sensor of the locking device 10 . If it is determined that the locking means is not in its in Figure 12c shown locking position, the traction means 3 is moved in a movement step 110 following the detection step 104 by a predetermined distance relative to the locking means 13 . In a first partial step 107 of the movement step 110, a target position of the traction device 13, which deviates from the current actual position of the traction device 3 by the specified distance. The specified path length is selected to be smaller than the tooth pitch T. In a second partial step 108, the traction means 3 is moved into the desired position. In a third partial step 109, a displacement sensor of the electric motor 2 of the door drive 9 is used to check whether the target position has been reached. If the target position is not reached, the traction mechanism 3 is moved in the direction of the target position until it is reached.

After the movement step 110, the triggering step 103 and the detection step 104 are repeated until it has been detected in the detection step 104 that the locking means 13 is in the locking position. Then, in a storage step 105, the position of the traction mechanism 3 is stored as the locking reference position. This locking reference position can subsequently be used to calculate further locking positions of the traction mechanism 3 . In the final state 106, the door drive 9 of the locking system 1 is locked.

The representation in 15 shows a flowchart of a method for operating a sliding door system 1, in which the door drive 9 is locked in a further locking position of the traction mechanism 3. This additional locking position is not identical to the locking reference position of the traction device 3. In an initial step 201, the door drive receives a movement command to move the sliding door element 6 or the traction device 3 to a predetermined target position. In a calculation step 202, a further locking position, which is as close as possible to the specified target position, is then calculated as a function of the stored locking reference position. In a further movement step 203 this is then done Traction means 3 moves in the direction of this further locking position. In this case, the traction means 3 is moved in a first partial step 204 in the direction of the locking position. In a second sub-step 205, the displacement sensor of the electric motor 2 is used to check whether the distance from the locking position is below a predetermined value. If the predetermined distance from the locking position is not fallen below, the traction mechanism 3 is moved in the direction of the locking position until this is the case.

After the movement step 203, a locking command for moving the locking means 13 into the locking position is transmitted to the locking device 10 in a triggering step 206 while the traction means 3 is in motion. In a detection step 207 following the triggering step 206, the position of the locking means 13 is detected by means of the position sensor 50 of the locking device 10. If it is determined that the locking means is not in its in Figure 12c shown locking position, the traction means 3 is moved in a movement step 213 following the detection step 207 by a predetermined distance relative to the locking means 13 . In a first partial step 209 of the movement step 213, a target position of the traction device 13 is set, which deviates from the current actual position of the traction device 3 by the specified distance. The specified path length is selected to be smaller than the tooth pitch T. In a second partial step 210, the traction means 3 is moved into the desired position. In a third partial step 211, a displacement sensor of the electric motor 2 of the door drive 9 is used to check whether the target position has been reached. If the target position is not reached, the traction mechanism 3 is moved in the direction of the target position until it is reached.

After the movement step 213, the triggering step 206 and the detection step 207 are repeated until it has been detected in the detection step 207 that the locking means 13 is in the locking position (final state 208).

The representation in 16 shows a flowchart of an alternative method for operating a sliding door system 1, in which the door drive 9 is locked in a further locking position of the traction mechanism 3. In an initial step 301, the door drive receives a movement command to move the sliding door element 6 or the traction means 3 to a predetermined target position. In a calculation step 302, a further locking position, which is as close as possible to the specified target position, is then calculated as a function of the stored locking reference position. In a further movement step 303, the traction mechanism 3 is then moved in the direction of this further locking position. Here, the traction means 3 is moved in a first step 304 in the direction of the locking position. In a second partial step 305, the displacement sensor of the electric motor 2 is used to check whether the locking position has been reached. If the locking position is not reached, the traction mechanism 3 is moved in the direction of the locking position until it is reached.

After the movement step 303, a locking command for moving the locking means 13 into the locking position is transmitted to the locking device 10 in a triggering step 306. In a detection step 207 following the triggering step 306, the position of the locking means 13 is detected by means of the position sensor 50 of the locking device 10. If it is determined that the locking means is not in its in Figure 12c shown is in the locking position, the traction means 3 is moved in a movement step 313 that follows the detection step 307 by a predetermined distance relative to the locking means 13 . In a first partial step 309 of the movement step 313, a target position of the traction device 13 is set, which deviates from the current actual position of the traction device 3 by the specified distance. The specified path length is selected to be smaller than the tooth pitch T. In a second partial step 310, the traction means 3 is moved into the desired position. In a third partial step 311, a displacement sensor of the electric motor 2 of the door drive 9 is used to check whether the target position has been reached. If the target position is not reached, the traction mechanism 3 is moved in the direction of the target position until it is reached.

After the movement step 313, the triggering step 306 and the detection step 307 are repeated until it has been detected in the detection step 307 that the locking means 13 is in the locking position (final state 308).

In the 17 another exemplary embodiment of a guide link 19 of a link mechanism is shown, which can be used in the invention. The guide link 19 can be provided in the locking means 13 . The guide link 19 is designed as a long hole with a curved course. The radius of the curve of the course is denoted by the reference F. The representation in 17 shows the control element 25' on the left in a position in which it is located when the locking means 13 is in its release position. Furthermore, the control element 25" is shown on the right in a position in which it is located when the locking means 13 is in its locking position. The stroke path is denoted by the reference character E, the travel path parallel to the direction of movement B of the traction mechanism 3 is denoted by the reference character G designated. D is the lift angle. In order to make it more difficult for the locking means 13 to slip out of its locking position when a force is applied, for example as a result of vandalism, the guide link 19 has an angle C, in particular in its area facing the locking section 14 . The angle C forms a surface that is oblique to the direction of movement B of the traction mechanism 3 and oblique to the locking direction V, which interacts with the control element 25'' in the locking position 17 it can be seen that due to the angle C there is a force effect in a direction H which forms an acute angle with the locking direction V. This makes it more difficult for the locking means 13 to be pushed out of the locking position.

Reference List

1

sliding door system

2

electric motor

3

traction means

4

deflection element

5

trolley

6

sliding door element

7

wall element

8th

floor

9

door drive

10

locking device

11

housing

11.1

housing part

11.2

housing part

11.3

housing part

11.4

housing interior

11.5

housing interior

11.6

housing recess

12.1

traction mechanism recess

12.2

traction mechanism recess

13

locking means

14

locking section

15

carrier element

16

attack

17

housing wall

18

guide hole

19

leadership backdrop

20

Locking drive, linear motor

21

stator

21.1

stator recess

22

stator core

22.1

stator tooth

22.2

stator tooth

23

Kitchen sink

24

runner

24.1

rolling surface

24.2

connection area

24.3

connection area

25

control

25'

control

25"

control

26

roller bearing

26.1

bearing ring

26.2

bearing ring

27

fastener

28

permanent magnet

30

locking mechanism

31

spring element

41

guide roller bearing

42

guide roller bearing

43

Operating mode bungee

44

Operating mode bungee

50

position sensor

51

detector

52

detector

53

detection area

54

detection area

101

exit step

102

pressing step

103

trigger step

104

detection step

105

save step

106

final state

107

substep

108

substep

109

substep

110

movement step

201

exit step

202

calculation step

203

movement step

204

substep

205

substep

206

trigger step

207

detection step

208

final state

209

substep

210

substep

211

substep

213

movement step

301

exit step

302

calculation step

303

movement step

304

substep

305

substep

306

trigger step

307

detection step

308

final state

309

substep

310

substep

311

substep

313

movement step

B

direction of movement

C

angle

D

lifting angle

D1

distance

D2

distance

E

stroke distance

f

radius

G

travel

H

power

p.m

Permanent Magnet Width

T

tooth pitch

Z1

tooth width

Z2

tooth width

V

locking direction

Claims (10)

1. A method of operating a sliding door system (1), comprising a door drive (9) with a traction means (3) formed as a toothed belt, a sliding door gear with a displaceable carriage (5) for a sliding door element (6), which is coupled to the traction means (3), and an interlocking device (10) for interlocking the door drive (9), wherein the interlocking device (10) includes at least one interlocking means (13), which is movable back and forth between a release location and an interlocking location, wherein, in the interlocking location, an interlocking section (14) of the interlocking means (13) positively cooperates with the traction means (3), wherein the method comprises the following method steps:

   - in a trigger step (103, 206, 306) an interlocking command is transmitted to the interlocking device (10) for moving the interlocking means (13) to the interlocking location; and

   - in a detection step (104, 207, 307) following the trigger step (103, 206, 306), a position sensor (50) of the interlocking device (10) detects the location of the interlocking means (13),
   characterized in that furthermore the method comprises the following method steps: wherein

   - in a movement step (110) following the detection step (104), the traction means (3) is moved by a specified travel length with regard to the interlocking means (13); and

   - after the movement step (110) are repeated the trigger step (103) and the detection step (104).
2. The method according to claim 1, characterized in that the movement step (110), the trigger step (103) and the detection step (104) are repeated until it is detected in the detection step (104) that the interlocking means (13) is located in the interlocking location.
3. The method according to any of the claims 1 or 2, characterized in that, in the movement step (110), the position of the traction means (3) is determined via an incremental encoder of an electric motor (2) of the door drive (9).
4. The method according to any of the preceding claims, characterized in that the position sensor for detecting the location of the interlocking means (13) senses a location of a rotor (24) of a linear motor (20) coupled to the interlocking means (13).
5. The method according to claim 4, characterized in that the position sensor comprises a first detector (51) for detecting the rotor (24) in a first location and a second detector (52) for detecting the rotor (24) in a second location.
6. The method according to any of the preceding claims, characterized by the following method step:

   - in a storage step (105) is stored then the position of the traction means (3) as the interlocking reference position, if the detection step (104) detected that the interlocking means (13) is in the interlocking location.
7. The method according to claim 6, characterized by the following method steps of interlocking the door drive in a further interlocking position of the traction means (3), which is not identical with the interlocking reference position:

   - depending on the stored interlocking reference position, in a calculation step (202, 302) is calculated the further interlocking position;

   - in a further movement step (203, 303), the traction means (3) is moved in the direction of the further interlocking position; and

   - in a further trigger step (103, 206, 306), an interlocking command is transmitted to the interlocking device (10) for moving the interlocking means (13) to the interlocking location.
8. The method according to claim 7, characterized in that the interlocking command is transmitted, if the traction means (3) has taken the further interlocking position.
9. The method according to claim 7, characterized in that the interlocking command is transmitted, if the traction means (3) has reached or fallen below a specified distance from the further interlocking position, in particular while the traction means (3) is moving.
10. A sliding door installation (1), comprising a door drive (9) with a traction means (3) formed as a toothed belt, a sliding door gear with a displaceable carriage (5) for a sliding door element (6), which is coupled to the traction means (3), and an interlocking device (10) for interlocking the door drive (9), wherein the interlocking device (10) includes at least one interlocking means (13), which is movable back and forth between a release location and an interlocking location, wherein, in the interlocking location, an interlocking section (14) of the interlocking means (13) positively cooperates with the traction means (3), wherein the sliding door system (1) is characterized in that it is adapted for performing the following method steps:

    - in a trigger step (103), an interlocking command is transmitted to the interlocking device (10) for moving the interlocking means (13) to the interlocking location; and

    - in a detection step (104) following the trigger step (103), a position sensor of the interlocking device (10) detects the location of the interlocking means (13),

    - in a movement step (110) following the detection step (104), the traction means (3) is moved by a specified travel length with regard to the interlocking means (13); and

    - after the movement step (110) are repeated the trigger step (103) and the detection step (104).

Images