WO2006039972A1

WO2006039972A1 - Sliding door comprising a magnetic support and drive system

Info

Publication number: WO2006039972A1
Application number: PCT/EP2005/009772
Authority: WO
Inventors: Sven Busch
Original assignee: Dorma Gmbh + Co. Kg
Priority date: 2004-10-17
Filing date: 2005-09-12
Publication date: 2006-04-20
Also published as: DE102004050340B4; EP1805384A1; DE102004050340A1; EP1805384B1

Abstract

The invention relates to a sliding door comprising a magnetic support and drive system for at least one door leaf (5). Said system comprises a row of magnets (1), which is arranged in the drive direction and whose magnetisation changes its polarity in the longitudinal direction at specified intervals and a winding assembly consisting of several individual windings (7) and cores (12), said assembly causing an interaction with the row of magnets (1) that initiates feed forces when the individual windings (7a-c) are controlled in a corresponding manner. According to the invention, the cores (12) or pole shoes lying against said cores interact by force of attraction with the row of magnets (1). The system also comprises a guide element (25), which safeguards a specific gap interval (a) between the row of magnets (1) and the cores (12) or the pole shoes, a support carriage (4), to which the door leaf can be fixed (5) and an adjusting unit for the load capacity (19, 20), which is used to set the specific gap interval (a).

Description

Title: Sliding door with a magnetic support and drive system

description

The invention relates to a sliding door with a magnetic support and drive system for at least one door leaf, with a linear drive unit with at least one row of magnets. The term magnet series also includes elongated individual magnets. The magnet series can be arranged stationary or mobile.

From DE 40 16 948 A1 a sliding door guide is known, in which mit¬ cooperating magnets under normal load a contact-free floating guide a held in a sliding guide door wing or the like cause, in addition to the stationary magnet arranged the sliding guide a stand a Linearmo¬ sector is arranged, whose rotor is arranged on the sliding door. By virtue of the selected V-shaped arrangement of the permanent magnets of the permanently excited magnetic carrying device, which is not shown, it is not possible to realize a laterally stable guideway, which is why a relatively complicated arrangement and configuration of stator and rotor is required. This arrangement increases the cost of such a sliding door enormously.

From WO 00/50719 A1 a combined storage and drive system for an automatically operated door is known, in which a permanently energized magnetic support system is constructed symmetrically and has stationary and movable magnet rows which are each arranged in a plane, wherein the support system is in an unstable equilibrium and in which the support system has symmetrically arranged lateral guide elements which can be mounted in a roll-shaped manner. NEN. Because of the laterally stable guideway achieved in this way, a simple design and arrangement of the stator and rotor of a linear motor housed in a common housing, namely the possibility of being able to arbitrarily arrange the stator and rotor of the linear motor in relation to the support system and not be limited by the support system with respect to the shape of the stand and the runner.

What these two bearing systems have in common is that they work according to the principle of repulsive force action, which principle of action allows a stable levitation state without expensive electrical control devices. The disadvantage of this, however, is that both at least one stationary and at least one positionable magnet series must be present, d. H. Magnets must be arranged over the entire path of the sliding guide or the bearing of the automatically operated door and on the guide carriage for the door along this guide, as a result of which such a system becomes effective due to the omission of the mechanical friction The door is characterized by extreme ease of movement and noiseless operation and is virtually free of wear and maintenance, and is very expensive to manufacture.

DE 196 18 518 C1 further discloses an electromagnetic drive system for magnetic levitation and support systems, in which a stable levitation and carrying state is achieved by a suitable arrangement of the permanent magnet and ferromagnetic material. For this purpose, the permanent magnet puts the ferromagnetic material in the state of a magnetic partial saturation. Electromagnets are arranged so that the permanent magnets are moved solely by a change in the saturation in the Tragschie¬ ne and the coil cores are included in the permanent magnetic partial saturation, which leads to the floating and wearing state. Furthermore, WO 94/13055 shows a stator drive for an electric linear drive and a door provided with such a stand, which is suspended by means of magnets in the lintel of a frame. For this purpose, a plurality of magnets or magnet groups are arranged on the door panel whose magnetic field strength is so great that an attraction force is achieved to a guide plate, which is arranged ange¬ on the underside of the lintel, the attraction is sufficient to the weight of Tür¬ filling to raise.

The two systems described in these documents is gemein¬ sam that caking of the magnets on the ferromagnetic material is prevented by means of rollers, ie an air gap between the magnet and the ferromagnetic material is adjusted by means of rollers. These roles must accommodate large forces in the selected arrangements, since the magnetic field strength can not be chosen so that only the respective magnetically suspended door is held, but due to safety regulations, a certain additional Trag¬ force must be present so that the door not unintentionally drops. Consequently, the rollers must be designed similarly, as with purely roller-mounted sliding doors, which results in mechanical friction for adjusting the air gap being present. This eliminates the extreme ease and noiseless operation of working according to the repulsive force principle storage and leads to wear and maintenance. In addition, the magnetic attraction force has to be precisely adjusted to the respective load to be supported even during production, which makes these systems unsuitable for practical use or too expensive.

It is therefore the object of the invention to provide a sliding door with a magnetic support and drive system for at least one door leaf, the one Linear drive unit with at least one row of magnets, so wei¬ terentwickene that the aforementioned advantages remain at low manufacturing costs.

This object is achieved with the features specified in claim 1. Advantageous embodiments of the subject matter of patent claim 1 are specified in the subclaims.

The sliding door according to the invention with a magnetic support and drive system for at least one door, with a magnet array arranged in the drive direction whose magnetization in its longitudinal direction at certain intervals changes the sign, consisting of a plurality of individual coils and coil cores coil arrangement, which with appropriate control of Single coils causes an interaction with the magnetic series, which causes the feed forces, wherein the Spulen¬ cores or at this fitting pole shoes in attractive force with the magnetic series stand, a guide element nen nen gap-shaped distance between the magnet array and the Spulenker¬ NEN or ensures the pole pieces, a support slide to which the door can be attached and a load-adjusting device by means of which the particular gap-shaped distance can be adjusted, has over the prior art has the advantage that the T Rag¬ element due to the exploded attractive force does not necessarily hardmagnetisch must be, with a gap width of the gap-like distance between the magnet array and the Spulen¬ cores and / or pole pieces existing support member can set the wer¬. By such an adjustment, a simple adjustment of the load capacity can be realized. Due to the possibility of adjusting the load capacity, the carrying device according to the invention can be easily adapted to different carrying loads, ie to differently heavy door leaves of the invention. In accordance with the sliding door, it is necessary to adapt without constructive changes or replacement of elements of the carrying device. By virtue of this feature, the carrying devices of the sliding doors according to the invention can be manufactured in series without any difference in terms of actual later use, ie without adjustment to the weight to be carried later during manufacture. This further leads to the fact that according to the invention a particularly simple and uncomplicated design of the guide element ermög¬ light, since this with optimum adjustment of the load capacity to ensure the distance between the magnet array and the support element does not have to absorb load. For this reason, according to the invention, in a bearing operating according to the attractive force principle, there is a very good smoothness and noiseless operation, despite the fact that the guide element used ensures the specific gap-like distance between the two magnet rows and the coil arrangement and the mounting rails Aus¬ use of an unstable state of equilibrium no electrical or electronic control device needs to be provided. A gap-like distance in the sense of this invention is a distance between two parallel or slightly inclined surfaces. Here, in particular, between a pole face of one of the at least one magnet row and one of these faces of the coil cores of the coil arrangement arranged opposite to one another essentially parallel thereto.

In the carrying device according to the invention, the magnet series is preferably magnetized parallel to the carrying direction and transversely to the drive direction.

In a first preferred embodiment according to the invention, alternatively or additionally, preferably, the guide element is fastened to the carrier and counteracts the magnetic bearing and bearing. drive housing receiving housing to ge a certain vertical Posi¬ tion of the support carriage in the support direction with respect to the housing to ge¬ and adjustable by the load-adjusting device, the relative position of the attached to the housing coil cores or pole pieces to the attached to the support carriage magnet series That is to say, in this first preferred embodiment according to the invention, the coil arrangement is stationary and the magnet series is arranged in a mobile manner.

In this first preferred embodiment according to the invention, the load-adjusting device preferably consists of at least one first screw which adjusts the relative vertical position of the coil cores or poles to the housing and / or of at least one second screw, which controls the relative vertical position of the magnet row to the Trag¬ sets carriage. By means of such a load-force adjusting device formed by means of screws, a particularly simple and cost-effective embodiment of the invention is realized by means of which the gap width existing between the magnet row and the coil cores or pole shoes, and thus the carrying capacity, can be set very precisely.

Furthermore, in this first preferred embodiment of the invention, the load-force adjusting device alternatively or additionally comprises at least one first spacer element, which has a spacing between a bottom of the housing and the coil cores or pole shoes and / or at least one second one Distance element, which defines a distance between a bottom of the support element and the magnet row. By means of such spacer elements, which define a distance adapted to specific loads to be supported, mounting of different-sized door wings can be carried out easily, whereby an adjustment adapted to individual door wings is given despite a uniform support and drive system for all door leaves is. In a second preferred embodiment according to the invention, the guide element is alternatively or additionally preferably fastened to the support carriage and acts against a housing receiving the magnetic support and drive system in relation to a specific vertical position of the support carriage in the support direction on the housing to ge guarantee, and adjustable by the load-adjusting device, the relative position of the attached to the support carriage magnetic cores or pole pieces to the attached to the housing series of magnets. Ie. In this second preferred embodiment according to the invention, the magnet series are stationary and the coil arrangement is arranged to be movable in position.

In this second preferred embodiment according to the invention, the load-bearing adjusting device preferably consists of at least one first screw, which adjusts the relative vertical position of the magnet row to the housing, and / or of at least one second screw, which is the relative vertical one Adjusting the position of the coil cores or pole pieces to the support carriage, in order to achieve the above described in relation to this embodiment of the first preferred embodiment according to the invention NEN advantages.

Furthermore, in this second preferred embodiment of the invention, the load-force adjusting device alternatively or additionally comprises at least one first spacer element, which has a distance between a bottom of the housing and the magnet row and / or at least one second spacer element, which is at a distance defined between a bottom of the support element and the coil cores or pole shoes, in order to achieve the advantages described above in relation to this embodiment of the first preferred Ausfüh¬ form according to the invention. According to the invention, the guide element preferably comprises alternatively or additionally at least first rollers and second rollers, which run in a respective groove provided in side regions of the housing. Die¬ se invention provided groove simultaneously causes both the inventive guarantee the gap-shaped distance by limiting the movement of the support carriage in the negative supporting direction, ie upwards, as well as further prevention of unwanted Ab¬ falling of the door leaf at an exceeding of the Magnetic support device generated holding force by limiting the movement of the support carriage in the positive direction of support, ie down. This preferred embodiment of the guide element according to the invention makes it possible for the magnetic holding forces to be optimally adjusted, ie a door leaf is held just in such a floating state that the guide element essentially has to absorb no carrying forces, whereby the safety regulations are satisfied. because the door can not fall off even if an additional force acting in addition to the gravitational force down. Due to the configuration by means of a guide element provided with rollers, a slight displacement of the door leaf is also possible in this case.

However, the preferred rollers can also be replaced by Wälz¬ or sliding body according to the invention. These embodiments can continue with the use of certain materials, eg. As plastic, the smoothness of the sliding door improved and maintenance of the Führungselemen- tes be reduced to a minimum, since with a corresponding An¬ adaptation of the elements of the guide element noise and wear can be minimized.

According to the invention, the magnet series preferably consists of one or more high-performance magnets, preferably rare-earth magnets. Magnets, more preferably from neodymium-iron-boron (NeFeB) or samarium cobalt (Sm ₂ Co) or plastic-bound Magnetwerk¬ materials. Due to the use of such high-performance magnets, much higher force densities can be generated than with ferrite magnets because of the higher remanence induction. Consequently, the magnetic system can be geometrically small for a given load-bearing capacity with high-performance magnets and thus save space. The higher material costs of the high-performance magnets than ferrite magnets are at least compensated for by the comparatively small magnet volume.

The drive system according to the invention or combined support and drive system is used to drive at least one door leaf of a sliding door, which is preferably designed as a curved sliding door or horizontal sliding wall. In addition to this insert, it can also be used to drive gate leaves or in feed devices, handling devices or transport systems.

The invention will now be described in more detail with reference to schematically illustrated embodiments Ausfüh¬.

Showing:

FIG. 1 is a longitudinal sectional view of the combined support and drive system used in principle according to the invention;

FIG. 2 shows an electrical connection of the coils of the linear drive unit of the combined support and drive system shown in FIG. FIG. 3 shows a diagram for explaining a first possibility of the voltage curve at the coils of the drive system used according to the invention, as shown in FIG.

FIG. 4 shows a diagram for explaining a second possibility of the voltage curve at the coils of the drive system according to the invention as shown in FIG. 2,

FIG. 5 shows a diagram for explaining a third possibility of the voltage curve at the coils of the drive system used according to the invention, as shown in FIG.

FIG. 6: cross-sectional views of a sliding door according to preferred embodiments according to the invention and FIG

Figure 7: cross-sectional views of a sliding door according to further preferred embodiments of the invention.

FIG. 1 shows a schematic basic representation of two drive segments of a drive system preferably used according to the invention, in this case as a combined magnetic support and drive system, in a longitudinal section, in which the magnetic linear drive used according to the invention acts on the magnet row 1, which actuates a support carriage 4 is fixed, which holds a door 5. The magnet row 1 has in each case alternately polarized individual magnets. In the supporting direction above half of the magnet row 1, coils 7 are arranged with a certain gap-shaped spacing in such a way that a respective coil core 12 is located in the supporting position. direction, ie z-direction extends. The coil cores 12 are in an attracting force action with the magnet row 1 and thus hold the door leaf 5.

In order to ensure a continuous feed of the magnetic row 1, the stator coils 7 are arranged with their respective coil cores 12 in different relative positions relative to the grid of the permanent magnets. The more different relative positions are formed, the more uniform the thrust force can be realized over the travel. On the other hand, since each relative position of an electrical phase of a required for the linear drive AnSteuersystemes is assigned, as little electrical phases should be used. Because of the available three-phase three-phase network, a three-phase system, as shown by way of example in FIG. 2, can be constructed very inexpensively.

In this case, a respective drive segment and thus a coil module of the linear drive unit consists of three coils 7a, 7b, 7c which have an extension of three length units in the drive direction, ie x-direction, ie between middle points of adjacent coil cores 12 is a raster Rs = 1 unit length. The length of a magnet of the magnet row 1 in the drive direction and the length of the gap lying between the individual magnets of the magnet row 1 is selected here such that the length of a magnet LMagπet + length of a gap Luicke = magnet grid RM = 3/4 length unit (= 3 / 4 R _s ).

FIG. 2 shows the interconnection of the coils of the two drive segments shown in FIG. 1 of the linear drive unit preferably used in accordance with the invention. Here, a first coil 7a having a first coil core 12a between a first phase and a second phase is one of three Phases connected existing three-phase system, whose three phases are evenly distributed, so the second phase at 120 ° and a third phase at 240 °, when the first phase is at 0 °. The second coil 7b with coil core 12b of a drive segment of the linear drive unit lying in the positive drive direction, ie + x direction, next to the first coil 7a with magnetic core 12a is connected between the second phase and the third phase and the one in positive Drive direction, ie + x-direction next to the second coil 7b with coil core 12b lying third coil 7c with coil core 12c is connected between the third phase and the first phase. In addition to such a drive segment of the linear drive unit, drive segments of the linear drive unit are connected in the same way to the three phases of the three-phase system.

If one assigns the angle formed by the permanent magnets Polraster, analogous to the arrangement in a two-pole DC motor, phase angle, so the linear coil arrangements can be mapped in a circular phase diagram. Since this can be interpreted both magnetically as a driving effect on the permanent magnets and electrically as a control of the coils, the relationship between switching states and driving effect can be uniformly described by this diagram.

Such a circular phase diagram with drawn coils is shown in FIG. Here, on the ordinate, the electric potential is given in V and on the abscissa the magnetic potential. A circle around the origin of this coordinate system, which represents a zero potential for both the electrical potential and the magnetic potential, represents the phase angles of the voltage applied to the respective coils, a 0 ° phase position at the point of intersection of Is given a circle with the positive ordinate and the phase in the clockwise direction to a 90 ° phase position in the intersection of the circle with the negative abscissa, the dar¬ the magnetic potential of the south pole represents a 180 ° phase position in the intersection of A circle with the negative ordinate, which represents the minimum voltage potential, a 270 ° phase position in the intersection of the circle with the positive Ab¬ szisse representing the magnetic potential of the North Pole, up to a 360 ° phase position, the same O ° phase position is, in the intersection of the circle with the positive ordinate, which represents the maximum voltage potential changes.

As shown in FIG. 2, a relationship is given in which the first coil 7a having a magnetic core 12a between an 0 ° phase position and a 120 ° phase position, the second coil 7b having a magnetic core 12b between a 120 ° phase position and a 240 ° phase position and the third coil 7c with magnetic core 12c between a 240 ° phase position and a 360 ° Phas- senlage lie. In three-phase operation, the hands of these coils now rotate in the counterclockwise direction according to the alternating frequency of the three-phase current, wherein in each case one of the electrical potential difference between the projected on the ordinate projected start and end points of Zei¬ gers voltage applied to the coil.

In the magnetic interpretation of the phase diagram, a phase pass of 180 ° corresponds to a displacement of the rotor by the distance between the centers of two adjacent magnets, so the magnetic grid RM. As a result of the alternating polarization of the magnet in the rotor, a pole change is carried out when shifting around the magnetic grid RM. After a 360 ° phase pass, the rotor displacement is two RM. In this case, the magnets are located relative to the Grid R _{s of} the stator coils back to starting position, comparable to a 360 ° rotation of the rotor of a two-pole DC motor.

For the electrical interpretation of the phase diagram, the ordinate is considered on which the applied electrical voltage potential is represented dar¬. At 0 °, the maximum potential, at 180 °, the minimum potential and at 90 ° or 270 °, an average voltage potential. As mentioned above, the coils are represented in the diagram by arrows, their starting and end points representing the contacts. The respectively applied coil voltage can be read off by projection of start and end point of the arrows on the potential axis. The arrow direction determines the current direction and thereby the magnetization direction of the coil.

Instead of a continuous sinusoidal voltage source, which has a phase diagram according to FIG. 3, a controller with a rectangular characteristic can also be used for cost reasons. In a corresponding phase diagram, which is shown in FIG. 4, the rectangular characteristic is represented by switching thresholds. In this case, the phase connections can each assume the three states plus potential, minus potential and potential-free. The plus potential z. B. in a range between 300 ° and 60 ° and the negative potential in a range of 120 ° to 240 ° and the ranges between 60 ° and 120 ° so¬ as 240 ° and 300 ° represent the potential-free state in which the Spools are not connected. In rectangular voltage control, the more uneven thrust compared to sinusoidal control is disadvantageous.

Of course, a large number of further coil configurations and potential distributions can still be constructed, for For example, the potential distribution shown in FIG. 5 has a minimum potential of 0 V in one range between 105 ° and 255 °, a maximum potential of 24 V in a range of 285 ° to 75 ° and potential-free regions of 75 ° to 105 ° and of 255 ° to 285 °.

Figure 6 shows cross sections of supporting and driving means of a sliding door according to preferred embodiments of the invention.

FIG. 6 a) shows a first preferred embodiment according to the invention. A generally U-shaped housing 6 has a bottom 16 and two perpendicular thereto side portions 17, each having recesses 26 in which mounted on the support carriage 4 vertical guide rollers 25 run. The vertical guide rollers 25 and the recesses 26 form the guide element 3 according to the invention. It should be noted that the vertical guide rollers 25 moving in the recesses 26 neither limit the limit generated by the recesses 26 during operation with an ideal adjustment of the carrying capacity in the negative direction of support still require the limita- tion generated in this positive support direction.

The bottom 16 has a milled recess 15, in which a soft magnetic return rail 18 is arranged, on which the coil cores 12 are fixed, on which the coil windings 7 are located. The coil cores 12 and soft magnetic return line 18 may be formed integrally aus¬.

Within the here U-shaped support carriage 4, on whose Seitenberei¬ Chen 14, the vertical guide rollers 25 are fixed to a mounting rail 21 magnetic row 1, wherein the mounting rail 21 guided by means of a bottom 13 of the support carriage 4 adjusting screws 20 on the Carrying carriage 4 are held. The adjustment screws 20 simultaneously determine the vertical position of the magnet row 1 within the support carriage 4 and thus also the gap-like distance a between the magnet row 1 and coil cores 12. A distance b resulting between the bottom 13 of the support rail 4 and the attachment rail 21 is like a distance a proportional to the load capacity. In this first preferred embodiment, the carrying capacity is thus adjustable over the setting of the gap-shaped distance a, which satisfies the relationship a + b = constant.

In FIG. 6b) it is shown that the distance b is filled by spacer elements 22. This z. B. used during assembly Abstandsele¬ elements 22 can thus define the carrying capacity by their height, which defines the distance b. Thus, 5 corresponding spacer elements 22 can be delivered with each door, through which the carrying capacity of a universal support and drive system according to the invention by Ein¬ push the spacer elements 22 between mounting rail 21 and bottom 13 of the support carriage and then tightening the Ein¬ adjusting screw 20 are adapted to this can.

FIG. 6c) shows a second preferred embodiment according to the invention, which is modified with respect to the embodiment shown in FIGS. 6a) and 6b) such that the vertical position of the soft-magnetic return flow rail 18 can also be adjusted by means of adjusting screws 19 a distance c between the bottom 16 or a bottom of the cutout 15 located in the bottom 16 and the soft magnetic return flow rail 18. In this second preferred embodiment, the carrying capacity can therefore be set via the setting of the gap-shaped distance a, which satisfies the relation a + b + c = constant. FIG. 6 d) shows a third preferred embodiment according to the invention, which is modified with respect to the embodiment shown in FIG. 6 c) in that only the vertical position of the soft-magnetic return flow rail 18 can be adjusted by means of adjusting screws 19, ie Distance c between the bottom 16 and a bottom of the recess 16 located in the bottom 15 and the soft magnetic return rail 18. In this third preferred embodiment, the carrying capacity is thus adjustable by setting the gap-shaped distance a, the relationship a + c = constant is enough.

FIG. 7 shows cross sections of a first and a second development of a carrying and driving device of a sliding door according to the first preferred embodiment of the invention.

In contrast to the embodiments of the invention shown in FIG. 6, the recesses 26 are not arranged below the coils 7 and coil cores 12 in the vertical direction, but next to them, because of the support carriages 4 is designed so that not only the on this fixed magnetic row 1 is disposed within its side regions 14, but also parts of the attached to the housing 6 coils 7 and spool core 12. This results in a wider and flatter design. Further, the recesses 26 are provided with running surfaces 23, which are designed such that any necessary unrolling of the vertical guide rollers 25 is quieter.

Furthermore, a cover 28 is provided around the housing 6, within which a circuit arrangement 27 for actuating the linear drive unit is accommodated. In the first development of a carrying and driving device of a sliding door according to the first preferred embodiment according to the invention shown in FIG. 7 a), the fastening rail 21 is designed as a U-shaped profile, which in the upper region of a main element of the invention Supporting slide forming H-profile 4a is used, the Seiten¬ areas 14 are offset below the bottom 16 of the upper gate to the outside, ie in the direction of the upper side regions 14 be¬ fixed vertical guide rollers 25 (which set ver¬ outwardly lower side regions 14 are). Underneath the outwardly offset lower side regions 14 are projections 17a 17b of the side regions 17 of the housing 6, which form a screen in the inner region of the support and drive system according to the invention. The fastening rail 21 is fastened by means of an adjusting screw to the bottom of the upper region of the H-profile forming the support carriage. At the lower side regions 14, a U-profile 4b forming a fastening element of the support sled is attached, on which the door leaf 5 is suspended.

In the second development of a carrying and drive device of a sliding door according to the first preferred embodiment according to the invention shown in FIG. 7b), in contrast to its first further development, the support carriage is designed as two U-profiles 4c, 4d lying inside one another Formed ¬, wherein formed as a U-shaped mounting rail 21 is secured by means of adjusting screws 20 within the inner U-profile 4c at the bottom 13, on whose side regions 14, the verti cal len guide rollers 25 are attached and also on the Seiten¬ areas 14 fixed outer U-profile 4d the door 5 carries.

Naturally, in all embodiments shown and described, the row of magnets 1 on the housing 6 and those of coils 7, Spool cores 12 and possibly a soft magnetic return rail 18 existing coil unit may be attached to the support carriage 4.

LIST OF REFERENCE NUMBERS

1 magnetic series

3 guide element

4, 4a-d support carriage

5 door leaves

6 housing

7, 7a-c coil

12, 12a-d spool core

13 bottom of the support carriage

14 side area of the support carriage

15 milling

16 bottom of the case

17 side area of the housing

17a, 17b projections

18 soft magnetic return rail

19 first adjusting screw

20 second adjusting screw

21 fixing rail

22 spacer element

23 treads

25 vertical roll

26 recess

27 circuit arrangement

28 Fairing b Distance a Distance

C distance

Z supporting direction

X drive direction

Claims

claims

1. Sliding door with a magnetic support and drive system for at least one door leaf (5), with a magnet row (1) arranged in the drive direction, the magnetization of which changes sign in its longitudinal direction at certain intervals, one of a plurality of individual coils (7 ) and coil cores (12) existing Spulenan¬ order, which with appropriate control of the individual coils (7a-7c) causes an interaction with the magnet array (1), the pre-shear forces, the coil cores (12) or applied to these pole pieces in attractive force effect with the Magnet¬ row (1) are, a guide element (25), which ensures a bestimm¬ th gap-like distance (a) between the magnet array (1) and the coil cores (12) or the pole shoes, a Tragschütten (4) to which the door leaf (5) can be fixed and ei¬ ner load-adjusting device (19, 20) by means of the specific gap-shaped spacing (a) can be adjusted.

2. Sliding door according to claim 1, characterized in that the magnet row (1) is magnetized parallel to the supporting direction (z) and transversely to the Antriebs¬ direction (x).

3. Sliding door according to claim 1 or 2, characterized in that the guide element (25) on the support carriage (4) is fixed and against a magnetic support and drive system Aufnahm¬ housing (6) acts to a certain vertical position of Supporting carriage (4) in the supporting direction (z) with respect to the housing (6) to ensure, and by the load-adjusting device (19, 20), the relative position of the housing (6) fixed to the coil cores (12) or pole pieces to the on the support carriage (4) fixed magnetic series (1) is adjustable.

4. Sliding door according to claim 3, characterized in that the load-adjusting device of at least a first screw

(19) which adjusts the relative vertical position of the coil cores (12) or pole pieces to the housing (6) and / or consists of at least one second screw (20) which determines the relative vertical position of the magnet row (1). to the support carriage (4) adjusts.

5. Sliding door according to claim 3 or 4, characterized in that the load-adjusting device at least a first Abstandsele¬ element (22), the distance between a bottom (16) of the Ge (6) and the coil cores (12) or Pole shoes and / or at least a second spacer element which defines a distance between a bottom (13) of the support element (4) and the magnet row (1).

6. Sliding door according to claim 1 or 2, characterized in that the guide element (25) on the support carriage (4) is fixed and against a magnetic support and drive system Aufnahm¬ of the housing (6) acts to a certain vertical position of the Supporting carriage (4) in the supporting direction (z) with respect to the housing (6) to ensure and by the load-adjusting device (19, 20), the relative position of the on the support carriage (4) Magnetker¬ ne (12) or pole pieces to the on the housing (6) attached Mag¬ netreihe (1) sets.

7. Sliding door according to claim 6, characterized in that the load-adjusting device of at least a first screw 72

- 23 -

(19), which adjusts the relative vertical position of the magnet row (1) to the housing (6) and / or consists of at least one second screw (20), the ne the relative vertical position of the Spulenker¬ (12) or pole pieces to the support carriage (4) adjusts.

8. Sliding door according to claim 6 or 7, characterized in that the load-adjusting device at least a first Abstandsele¬ element (22) having a distance between a bottom of the housing (6) and the magnet array (1) and / or at least a second Abstandselement comprising a distance between the ground

(13) of the support element (4) and the coil cores (12) or Polschu¬ he (19) defined.

9. Sliding door according to one of the preceding claims, characterized in that the guide element (3) comprises at least first rollers (25) and second rollers (25), which are provided in a respective side regions (17) of the housing (17). 6) provided groove (26) run.

10. Sliding door according to one of the preceding claims, characterized in that the magnet row (1) consists of one or more

High-performance magnets, preferably rare-earth high-performance magnets, more preferably of the NeFeB or Sm ₂ Co type.

11. Sliding door according to one of the preceding claims, characterized ge indicates that the sliding door is designed as a curved sliding door or Hori- zontal sliding wall.