EP2836454B1 - Method for positioning anti-transport element of a shaft door of a lift assembly - Google Patents

Description

The present invention relates to a method for positioning counter-drive means, which are provided on a shaft door of an elevator installation.

Elevator doors usually have a car door provided on the car and shaft doors provided on each floor. When driving off a floor through the car, both the car door and the corresponding landing door (then positioned behind the car door) must be opened and closed to allow passengers to get in or out of the car.

Usually, a car door has a drive by means of which it can be moved up and down. In order to avoid corresponding drives for each shaft door, the car door is formed with driving means or a driving mechanism which engages upon reaching a floor in corresponding counter-drive means of the shaft door, and this with up and moved. Usually here Spreizschwert- mechanisms are used, as for example in the EP 0 744 373 B1 are described.

Especially with a so-called high-performance car door is essential to avoid rattling and wind noise at very fast speeds. Furthermore, such elevator doors should open and close as quickly as possible. A precise positioning of the entrainment means and the counter-entrainment means to each other is essential in order to avoid such noise and to allow a quick opening and closing of the door.

Another device for driving a landing door by an operable by a door drive car door for elevator systems is from the WO 2011/072891 known.

Conventionally, it has been customary to position entrainment means designed as a spreader blade, which is attached to the car door, and counter-drive means designed as rollers, which are provided on each shaft door, in the vicinity of the door top edges. This allows an installer to set a desired positioning of the counter-drive means with respect to the driving means from the car roof. This is usually done in that the car is moved to a position slightly below a floor position, so that provided on the car Spreizschwert and provided on the shaft door rollers in which the Spreizschwert engages to entrain the shaft door, are visible to the fitter simultaneously , This procedure proves to be particularly favorable in that the Spreizschwert protrudes with its upper end on the upper edge of the car.

The installer sees the position of the expansion blade in the folded state, and at the same time knows the lifting movement the Spreizschwertwinkel the Spreizschwertes, from the folded in the driven apart coupling or final state. On the basis of this optical information, the fitter is able to position the rollers, which serve as counter-drive means, between which the spreader blade should engage, so that the spreader blade angles in each unfolded state act on a roller, and thus couple the car door and shaft door. Usually, in this case, the two rollers, optionally provided with further components of a coupling and locking mechanism, on a support plate, which is formed with slots. The slots are in this case positioned in front of corresponding, formed in the shaft door threads, so that a desired displacement and fixation of the support plate with respect. The shaft door is possible using cooperating with the slots and the threads screws.

In this approach, however, a positioning of the counter-drive means, in particular a support plate with two rollers, and the Spreizschwertes only in the immediate vicinity of the upper edge of the shaft door or car door is possible. This means that the coupling of the car door and shaft door takes place in the vicinity of the upper edge of the doors, resulting in a relatively strong and uneven torque load on the doors, especially in the case of doors opening and closing quickly.

Furthermore, the safety effort to be operated is relatively high, since the work must be carried out from the car roof.

Finally, such a mounting is considered to be relatively expensive, since the positioning of the rollers is done essentially by eye. In practice, this regularly leads to the position of the rollers or the carrier plate having to be readjusted, which is associated with a multiple process of the car.

The EP 1 500 625 A1 describes a method in which the positioning of the rollers on the hoistway door is effected by means of an action of a spread angle.

The present invention aims at a simplified yet precise positioning of the counter-drive means with respect to the driving means of a coupling mechanism for the car door and shaft doors of an elevator system.

This object is achieved by a method having the features of patent claim 1.

With the method according to the invention a fast and effective and at the same time precise feasible method for positioning of driving means and Gegenmitnahmemitteln each other is provided. The method allows a largely arbitrary positioning of the driving means and counter-drive means on the car door or shaft door. Thanks to the automated and very precise positioning, rattling noises can be minimized or avoided while the elevator car is moving, as well as during the opening and closing of the doors. It should be noted that the steps of the method according to the invention are not necessarily carried out in the order given Need to become. It is conceivable, for example, to swap the order of the steps of the method or moving the car into a floor position and the opening of the car door with one another, for example to move the car to the floor position with the car door already open. Also, for example, the fixing of the shaft door in the closed state can be carried out before the car is moved to the floor position or before the car door is opened. The provision of the counter-drive means with play can also take place, for example, before the method of the car is moved to the floor position or before the car door is opened or before the shaft door is locked in the closed state.

The term "floor position" is understood in particular the position of the car, in which an entry and exit of a person is readily possible. In particular, this term includes the normal stop position where the floor of the car and the respective floor are flush with each other. However, the term also includes car positions slightly below or slightly above the normal stop position, e.g. ± 20-40cm. The term is intended in particular to encompass all car positions in which the driving means and the counter drive means are in operative connection with each other, in other words the car is in the coupling or unlocking zone.

When the car is moved to the floor position, the driving means and the counter-driving means are in operative connection with one another under normal operating conditions brought. For example, the entrainment means can be introduced into the counter-drive means.

Opening the car door while simultaneously keeping the shaft door closed is possible, for example, by manual uncoupling of the car door from the shaft door. For this purpose, for example, a control function may be provided, which brings the driving means out of engagement with the counter-driving means when positioning the car in the floor position. It is also possible to first open the shaft door together with the car door, and then only to close the shaft door again.

Opening the car door can be done for example manually or by pressing the corresponding drive the car door.

A fixation of the shaft door in the closed state, for example, be accomplished manually by using appropriate blocking tools.

The counter-drive means provided on the shaft door can already be formed when the elevator car enters the floor position with play relative to the shaft door. However, it is also possible that the counter-drive means are secured when driving the car without play on the car door, and a (for example, in-car interior) installer provides the counter-drive means game. The method according to the invention can thus be used for the initial setting as well as for a readjustment of the position of the counter-drive means.

The re-closing of the car door can again be done manually, or by using the car door drive. The actuation of the driving means formed on the car door for acting on the counter-driving means substantially corresponds to the normal coupling process of the car door and landing door, wherein the driving means engage in the counter-driving means to accomplish a fixed coupling between the two doors, so that both doors through the car door drive can be opened and closed. Here, however, the counter-driving means are moved or brought due to their game in a desired position on the shaft door.

Upon termination of the application of the counter-drive means by the entrainment means, a disengagement of the entrainment means with respect to the counter-drive means is again understood, which in turn makes it possible to open the car door while keeping the shaft door closed.

The subsequent attachment of the counter-drive means on the shaft door can then be done by a (for example, inside the car) fitter.

The fixation of the shaft door in the closed state can now be solved.

Advantageous embodiments of the invention are the subject of the dependent claims.

Conveniently, the counter-drive means comprise two spaced-apart rollers, and the entrainment means between the roles einbringbares Spreizschwert with two Spreizschwertwinkeln, the roles are moved by moving apart of them introduced Spreizschwertwinkel in their desired position on the shaft door and secured in this position. Such entrainment means and counter-drive means prove to be particularly easy to adjust, and in terms of maintenance and wear as robust and reliable.

Conveniently, the rollers have a fixed spacing from each other on a support plate, wherein the support plate has at least one slot. By means of such a mechanism, a displacement of a support plate with the rollers mounted thereon with respect to a shaft door by application by a Spreizschwert in a simple manner possible. It should be noted that also a displaceability and fixability of the rollers can be realized directly on a shaft door (ie in particular without carrier plate). For this purpose, it is possible, for example, to form slots in the shaft door, in which or with respect to which the rollers can be positioned. It is also conceivable to make the rollers displaceable up to a stop with respect to a carrier plate. In this case, an application by means of the expansion blade would first cause a movement of the rollers with respect to the carrier plate, and only after reaching the respective stops a displacement of the support plate with respect to the shaft door. This embodiment allows a provision of the already shown coupling and entrainment function with an unlocking function using only two rollers. The unlocking function is used to lock a locking mechanism through which opening the landing door during normal operation of the elevator is not possible, as long as the car or the car door is not immediately behind the shaft door to unlock. In this case, it is expedient to temporarily fix the rollers in their position after reaching the stops during the positioning process. In this way it can be avoided that these rollers move during the removal of the expansion blade in the context of the positioning method, and thus possibly cause a displacement of the support plate.

According to a particularly preferred embodiment of the method according to the invention, at least one of the method steps is accomplished at least partially by a fitter (operator) located in the interior of the elevator car. As a result, the safety of the operator over conventional positioning method, which had to be performed from the car roof, significantly improved. Also, the method according to the invention over conventional methods faster and at the same time more precise feasible. In this case, it is preferable to let all process steps, as listed in the main claim, be carried out by an operator, who is located inside the car.

It proves to be particularly advantageous to design the counter-drive means and / or the entrainment means at approximately half the height of the shaft door or car door. Due to the compared to conventional solutions uniform load both the counter-drive means by the driving means and the respective doors is also a wear against reduced known solutions, which maintenance can be reduced.

The inventive method allows for the first time the training or arrangement of the driving means and / or the counter-drive means at about half the height of the car door or the shaft door. As a result, occurring when opening and closing the doors moments that act on the doors can be significantly reduced. By "about halfway up" is in particular a distance of 50-150 cm, in particular 100-150 cm, from a lower edge and / or upper edge of the car door or shaft door, or a positioning in an area up to 50cm above or below the half door height understood. For driving means designed as a spread angle, this means, in particular, that the middle area of the vertically extending spread angle is positioned approximately halfway up the car door. Such a positioning of the driving means and / or counter-driving means also leads to a particularly easy accessibility for a mechanic who is located inside the car.

Figuren 1a und 1b

Ansichten einer beispielhaften Ausführungsform der Mitnahmemittel von oben in jeweils unterschiedlichen Betriebspositionen zusammen mit einer beispielhaften Ausführungsform der schachttürseitigen Gegenmitnahmemittel, bei denen eine bevorzugte Ausgestaltung des erfindungsgemäßen Verfahrens einsetzbar ist,

Figur 2

eine bevorzugte Ausführungsform der erfindungsgemäß verwendeten Gegenmitnahmemittel in einer Draufsicht,

Figur 3

die Gegenmitnahmemittel der Figur 2 in einer Ansicht von oben, und

Figur 4

ein schematisches Ablaufdiagramm einer bevorzugten Ausführungsform der vorliegenden Erfindung.

Preferred embodiments of the invention will now be further explained with reference to the accompanying drawings. In this shows or show:

FIGS. 1a and 1b

Views of an exemplary embodiment of the entrainment means from above in different operating positions together with an exemplary embodiment of the bay door-side counter-drive means, in which a preferred Embodiment of the method according to the invention can be used,

FIG. 2

a preferred embodiment of the counter-drive means used according to the invention in a plan view,

FIG. 3

the countermeasures of the FIG. 2 in a view from above, and

FIG. 4

a schematic flow diagram of a preferred embodiment of the present invention.

In the FIGS. 1a, 1b is a preferred embodiment of a driving device, wherein the method according to the present invention is executable, shown and designated 100 in total.

The device 100 is used to couple a car door with a shaft door of an elevator. Car door and landing door are in FIGS. 1a, 1b only schematically indicated by brackets and designated 80 and 90, respectively. By means of the coupling between the car door 80 and shaft door 90 provided by the device 100, only the car door 80 needs to be configured with a door drive (not shown) which opens or closes the car door 80. Due to the coupling, no separate drive must be provided for the shaft door 90.

The device 100 has car door side two Spreizschwertwinkel 110, which with bay door side mounted rollers 210 for coupling the car door and Shaft door cooperate, as described below. The Spreizschwertwinkel 110 thus represent entrainment, and the rollers 210 counter-drive means in the context of the invention.

The device 100 has the car door side a Spreizschwertwinkel drive 101, which serves to couple the Spreizschwertwinkel 110 with the rollers 210. For this purpose, the expansion blade angles 110 are initially extended by means of the drive 101 in the direction of the shaft door between the rollers 210 (by means of the arrow P in FIG Fig. 1a indicated), and spread in this position (by means of arrow Q in Fig. 1b indicated). This extended and spread position is in FIG. 1b shown.

The described retraction and spreading of the Spreizschwertwinkel 110 causes the Spreizwertwinkel act on the respective rollers 210, and thus couple the car door and landing door with each other. In this state, the car door and landing door are coupled to each other via the coupling of spread angle 110 and rollers 210 such that opening or closing the car door 80 by means of a car door drive (not shown) leads to simultaneous opening or closing of the landing door 90 leads.

In order to solve the coupling between the car door and landing door again, the process described must be reversed in reverse order, ie the Spreizschwertwinkel 110 are folded by means of the drive 101 again, and in the in FIG. 1a retracted positions shown.

An exact positioning of the rollers 210 with respect to the Spreizschwertwinkel 110 is of great importance. For example, are the Spreizschwertwinkel 110 in the in FIG. 1a illustrated state is not symmetrical or arranged centrally of the rollers 210, it may come when spreading the Spreizschwertwinkel to an asymmetric or non-simultaneous loading of the rollers 210, which can be noticeable for example in an increased noise (rattling noises) or in increased wear ,

When mounting an elevator system, therefore, the rollers 210 at the shaft door with respect. Spreizschwertwinkel 110 and the car door are positioned as accurately as possible. This is where the present invention begins.

In the FIGS. 2 and 3 a preferred constructional possibility for the realization of the invention is shown. It can be seen here that the rollers 210 are mounted here on a mounting plate 250. This mounting plate 250 is formed with a number of slots 252 (four such slots 252 are provided in the illustrated example). Through these slots 252 each screw 254 are feasible, which cooperate with corresponding threads 256 which are formed in the shaft door 90.

In the case of a loose, ie not tightened, introduction of the screws 254 in the thread 256 thus a displacement of the mounting plate 250 and thus the rollers 210 with respect. The shaft door 90 is provided. The So roles here have a game on the shaft door.

In the following, the process of the invention is also illustrated Fig. 4 Referenced.

For positioning the rollers 210 with respect to the spread angle 110, the car is first moved to a respective stop (floor position) (step 410). Subsequently, the car doors are opened (expediently from the interior of the car) by the fitter (step 420), wherein these may not be coupled with the shaft doors.

Subsequently, the shaft doors 90 are fixed against being pushed or moved during the following positioning operation (step 430).

It is also possible to first open the car door and coupled with this shaft door, to release the coupling and then close the shaft door again and to fix in the closed position.

In order to adjust the rollers 210 serving as counter-drive means in their position relative to the shaft door 90 or relative to the spreading blade angles serving as driving means, the fixing screws 254 are first loosened and expediently tightened again in order to provide play for the rollers (step 440) ). As a result, the mounting plate 250 can be moved relative to the shaft door 90 with a slight expenditure of force. At the same time it is ensured that after completion of the automatic Positioning the position of the mounting plate 250 can be maintained, to subsequently accomplish the final attachment or adjustment of the position by tightening the screws 254.

In this state of the loosened and tightened fastening screws 254, the car door 80 is first closed again by means of the car door drive (step 450). The (fixed) landing door remains closed. In this locked position, the car door 80 is held exclusively by means of the car door drive (operating position). It is important for accurate positioning that this operating position be maintained during the positioning process.

The automatic positioning of the mounting plate 250 with the rollers 210 provided thereon is now started. For this purpose, only the one with reference to the FIGS. 1a, 1b described coupling process (extension and spreading of the Spreizschwertwinkel) are started (step 460), ie an actuation of the formed on the car door entrainment means for acting on the counter-drive means are performed.

By way of illustration, in FIG. 2 the positions of the Spreizschwertwinkel shown schematically. The dashed lines show the extended and non-splayed position of the spreader blade angles, while the dotted lines illustrate the extended and splayed positions of the spreader blade angles. In this position illustrated by dash-dotted lines, the Spreizschwertwinkel 110 act on the rollers 210, wherein In this state, with not tightened fastening screws 254, a corresponding displacement of the rollers 210 is effected by the action of the Spreizschwertwinkel 110, if the rollers 210 are not positioned exactly symmetrical with respect to the Spreizschwertwinkel.

After completion of this coupling process and a possible displacement of the mounting plate 250 by acting on the rollers 210 by the Spreizschwertwinkel 110, the rollers 210 are positioned in their optimal or optimized position with respect. The Spreizschwertwinkel 110.

Subsequently, the hoistway door 80 and the car door 90 are decoupled again (step 470) (i.e., the loading of the counter-drive means by the entrainment means is terminated) and the decoupled car door is opened again (e.g., manually) (step 480). The mounting plate 250 is now, as mentioned, in the optimal or desired position, in order to ensure a symmetrical and simultaneous loading of the rollers 210 with respect to the expansion blade angle 110 during further coupling operations. This position can now be fixed by simply tightening the screws 254 (step 490). Finally, the fixing of the shaft doors is released again (step 500). The positioning process is now complete and can be repeated for each additional floor.

Compared to conventional positioning method, the solution according to the invention provides a significant time savings, since the counter-driving means are already in the first position or interaction with the driving means in the desired position on the shaft door movable.

Carrier and counter-drive means are optimally positioned to each other only because of their own interaction. The method according to the invention is also characterized by increased safety, since the entire positioning process can be carried out by an installer located inside the car.

With the solution according to the invention, it is in particular possible to arrange the counter-drive means, that is to say the rollers 210, on the shaft door approximately at half the height of the shaft door or the car door. By such a coupling at half the height of the doors to be coupled a faster subsequent opening or closing of the coupled doors is possible. This also ensures a more even load on the doors during opening or closing. In the case of a conventional coupling in the vicinity of the upper edge of the doors act overall, especially in the region of the lower edge, relatively large moments on the individual doors.

Claims (6)

1. Method for positioning counter entraining means (210), which are provided on a shaft door (90) of an elevator installation, with respect to entraining means (110) provided on a elevator car door (80) of an elevator car of the elevator installation, wherein shaft door (90) and elevator car door (80) can be coupled to each other by means of action upon the counter entraining means (210) by the entraining means (110), characterized by the following method steps:

   a) moving (410) the elevator car into a story position,

   b) opening (420) the elevator car door (80),

   c) fixing (430) the shaft door in the closed state,

   d) providing (440) the counter entraining means (210), which are provided on the shaft door, with a clearance with respect to the shaft doors,

   e) closing (450) the elevator car door,

   f) actuating (460) the entraining means (110), which are formed on the elevator car door, to act upon the counter entraining means, wherein the counter entraining means are displaced by said action thereupon into a position, which is optimized with respect to the entraining means, on the shaft door,

   g) ending (470) the action upon the counter entraining means (210) by the entraining means (110),

   h) re-opening (480) the elevator car door while keeping the shaft door closed, and

   i) fastening (490) the counter entraining means (210) to the shaft door (90) in the optimized position set by the action of the entraining means (110).
2. Method according to Claim 1, characterized in that the counter entraining means (210) have two spaced-apart rollers, and the entraining means (110) have an expanding skate which can be introduced between the rollers and has two expanding skate angle members (210), wherein, by means of movement apart (460) of the expanding skate angle members (110) introduced between the rollers (210), said rollers are displaced into the position, which is optimized with respect to the expanding skate angle members, on the shaft door (90) and fastened in said position.
3. Method according to Claim 2, characterized in that the rollers (210) are provided at a fixed spacing from one another on a carrier plate or assembly plate (250), wherein the carrier plate has at least one elongated hole (252).
4. Method according to one of the preceding claims, characterized in that at least one of the method steps is at least partially brought about by an operator located in the interior of the elevator car.
5. Method according to one of the preceding claims, characterized in that the counter entraining means (210) are formed at approximately half the height of the shaft door.
6. Method according to one of the preceding claims, characterized in that the entraining means (110) are formed at approximately half the height of the elevator car door.

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