EP3971122A1

EP3971122A1 - Elevator

Info

Publication number: EP3971122A1
Application number: EP20196694.2A
Authority: EP
Inventors: Pasi Raassina
Original assignee: Kone Corp
Current assignee: Kone Corp
Priority date: 2020-09-17
Filing date: 2020-09-17
Publication date: 2022-03-23

Abstract

The invention refers to an elevator (10), comprising:several elevator cars (14a, 14b, 14c, 14d) driving in at least one elevator shaft (12a, 12b);a linear motor (16, 16a, 18, 18a, 22a, 22b, 24, 38, 38a) comprising- a first stator beam structure (16, 18) comprising at least one stator beam (22a,22b) mounted to a support structure (20) of the elevator shaft (12a, 12b) extending in vertical direction, and- at least one mover (24) coupled to each elevator car (14a, 14b, 14c, 14d) and coacting with the first stator beam structure (16, 18) to provide a propulsion force.According to the invention at least one transfer node (26, 28) is arranged along the length and/or at the upper and/or lower end of the first stator beam structure (16, 18). The transfer node (26, 28) comprises at least one vertical stator beam part (16a, 18a, 36a) of the linear motor for receiving the mover (24) of the elevator car (14a, 14b, 14c, 14d). The transfer node (26, 28) is arranged to rotate via a first actuator (30) around a vertical pivot axis (x). This solution allows an easy transfer of an elevator out of an elevator shaft.

Description

Background of the invention

The invention relates to an elevator according to the preamble of claim 1. Currently elevators utilizing electric linear motor systems are being developed. The elevator car is moved by at least one mover in electromagnetic engagement with the stator of the linear motor system. The stator is regularly comprised in a first vertical stator beam structure comprising at least one, regularly two parallel and spaced apart stator beams. Usually, the stator beam has poles with the passive electro-magnetic components for the linear motor, as irons and/or permanent magnets. Accordingly, the mover usually comprises the active electro-magnetic components as e.g. windings or coils eventually also permanent magnets for generating the propulsion force for the elevator car. But the arrangement of coils/magnets and irons/magnets in the stator and mover can also be vice versa.
The stator is being mounted via the first stator beam structure in a fixed manner with respect to the elevator shaft. The linear motor system may comprise one or more movers (usually two or four) coupled to the same elevator car. The mover(s) are in electromagnetic engagement with the stators in the first stator beam structure of the linear motor system.
The use of electric linear motors in elevators facilitate designing elevators having elevator cars moving in addition to vertical directions, that is, up and down in elevator shafts, also to horizontal directions as well, to transfer the car from one vertical shaft to another.

Description of the related art

In some known solutions linear motor segments are rotatable, such that the movement direction of the elevator car can be changed between vertical and non-vertical tracks. The movement directions in the adjacent elevator shafts form a two-dimensional plane, such that elevator car may be relocated to various places in the two-dimensional plane. Such solutions are shown for example in documents EP3409631 A1 and US10370221 B2 .
There is a need for simpler and more space-efficient solutions. Additionally, there is a need for solutions enabling more flexible movement of elevator car, in particular to locations existing outside of the two-dimensional plane. One such solution is proposed in document US 10,696,521 B2 . However, the direction changing apparatus of US 10,696,521 B2 may be large and heavy.
An elevator according to the preamble of claim 1 is known from US 10,696,521 B2 .

Summary of the invention

It is therefore object of the invention to provide an elevator which allows an easy transfer of an elevator car out of the elevator shaft.
The object is solved with the features of claim 1. Preferred embodiments are subject matter of the dependent claims. Preferred embodiments of the invention are also subject matter of the description and drawings.
The inventive elevator comprises several elevator cars driving in at least one elevator shaft and a linear motor comprising a vertical first stator beam structure with at least one stator beam mounted to a support structure of the elevator shaft extending in vertical direction, and at least one mover coupled to each elevator car and co-acting with the first stator beam structure to provide a propulsion force.
According to the invention at least one transfer node is arranged along the length of the first stator beam structure and/or at the upper and/or lower end thereof. The transfer node comprises at least one vertical stator beam part of the first stator beam structure of the linear motor for receiving the mover of the elevator car. This means that the transfer node forms with its vertical stator beam part(s) some middle section and/or the upper or lower ends of the vertical first stator beam structure.
The transfer node is arranged to rotate via a first actuator around a vertical pivot axis which is preferably arranged adjacent to or associated with the first stator beam structure. This feature could alternatively be expressed by saying that the transfer node is arranged to rotate about the stator beam structure, i.e. around a vertical axis associated therewith. By this means, it is possible to move the car which is located with its movers on the vertical stator beam parts of the transfer nod, out of the elevator shaft/runway by simply turning the transfer nod around a vertical axis. Thus, the car can be transferred by a pivot movement via the transfer node e.g. to an adjacent elevator shaft which is located behind the support structure. Thus the transfer node itself forms a middle, upper or lower part of the support structure which e.g. separates two adjacent shafts or which separates the elevator shaft from a further moving area of the elevator car, e.g. a parking area or a maintenance area.
This solution can be implemented very simple and can be used for a normal inter-shaft traffic or for special travels, e.g. into a parking or maintenance location. In particular, the transfer node is arranged to rotate about the stator beam structure after receiving the mover(s) of the elevator car. In this situation elevator car is suspended only by the transfer node so that it will be rotated along with the transfer node, enabling relocating the car in horizontal plane, for example, to an adjacent elevator shaft.
Preferably, the first stator beam structure comprises two spaced apart parallel stator beams, so that the elevator car is supported on two spaced apart points which offers a better load distribution and thus better stability, better ride comfort, a higher propulsion force and thus a higher capacity.
In a preferred embodiment of the invention the vertical pivot axis is located between the two spaced apart stator beams, preferably in the middle thereof. This is particularly beneficial for an elevator where the support structure separates two vertical elevator runways. In this case the first stator beam structures are located on both opposite sides of the support structure. Further in this case the transfer node carries on its opposites sides in a mirrored arrangement the stator beam parts of the corresponding first stator beam structures of both vertical elevator runways. Via the centric pivot axis of the transfer node those stator beam parts which were aligned with the first stator beam structure in the first shaft before the turning movement are now aligned with the first stator beam structure in the second shaft after the turning movement and vice versa. Thus, by simply turning the transfer node by 180 degrees, cars can be transferred from one shaft to the other and back, even at the same time as the transfer node can carry two cars at the same time on its both opposite sides. This solution facilitates effective shaft changing; it also provides an especially useful transfer option for circular motion when the transfer node is located along the length of the first stator beam structure.
Preferably, the stator beam parts form the upper/lower end of the first stator beam structure. It is of course possible to provide the transfer nodes somewhere along the length of the first stator beam structure, e.g. to provide at a certain level a transfer option to another elevator shaft/runway. Anyway, if the transfer nodes are located at the upper and/or lower ends of the first stator beam structure a complete closed moving circle can be established between two elevator shafts/runways which covers all floors of the elevator.
In a preferred embodiment of the invention the transfer node is arranged between two adjacent parallel elevator shafts, and the stator beam parts of the first stator beam structures of both elevator shafts are fixed to transfer node. Via this solution elevator cars can easily be transferred between two separate elevator shafts/runways.
Preferably, the transfer node is configured to rotate between the adjacent shafts such that the stator beam parts of the first stator beam structures of both shafts are exchanged, when the transfer node is pivoted by 180 degrees. This is preferably obtained when the transfer node carries the stator beam parts of the first stator beam structures of the two adjacent shafts and if the stator beam parts are arranged in amirror-fashion. Thus, by a turning movement of 180 degrees the stator beam parts of one shaft are the aligned with the first stator beam structure of the other shaft and vice versa.
Advantageously, the support structure is a steel frame structure carrying the first stator beam structures for both elevator shafts on its opposite sides. In this case the support structure can be tailored by the elevator builder and is not part of the building structure. The architect only has to provide the whole total building space for the adjacent elevator shafts, whereas the separation between the shafts is realized with the steel frame support structure(s) provided by the elevator builder. The steel frame structure can be provided with a noise isolating lining to reduce the noise level in the two adjacent shafts.
Preferably, the transfer node comprises a flat mounting structure for the stator beam parts. Via this solution the transfer node forms a wall structure aligned with the preferably wall-like support structure to form a homogenous separation between adjacent elevator runways/shafts. Accordingly, in a preferred embodiment of the invention the flat mounting structure of the transfer node forms a separating wall between the two adjacent elevator shafts.
As it has already been mentioned above, preferably the stator beam parts of the first stator beam structures of both elevator shafts are mounted on the opposite sides of the flat mounting structure, particularly in a mirrored fashion, so that by a simple 180 degree turn of the flat mounting structure the stator beam parts of the first stator beam structures of two adjacent shafts are exchanged, thus enabling an easy exchange of elevator cars between the elevator shafts.
Preferably, the first actuator is attached to the support structure or to the bottom or ceiling of the elevator shaft. Via this measure the actuator or pivot drive is arranged in a fixed manner which facilitates its energy support and its control via an elevator control for the function of the elevator and also for the operation of the first and second actuators.
Advantageously, the vertical pivot axis is the center axis of the transfer node, preferably the center axis of the flat mounting structure. Via this measure a mirrored structure of the stator beam parts for two adjacent elevator shafts can be established. By a turning movement of 180 degrees around the pivot axis the stator beam parts on both opposite sides of the transfer node are exactly aligned with the corresponding first stator beam structure of the other shaft, respectively.
It is clear for the skilled person that via the invention elevator shafts can be coupled with each other which are mutually located a different fashion than being side-by-side. Thus, elevators can be arranged in a 90 degree angle, e.g. like a four leaf clover. This means that the elevator shafts need not to be located adjacent to each other in a succession or in a plane.
In a preferred embodiment of the invention the at least one mover is arranged to rotate about a horizontal axis, e.g. by a pivot mount on the elevator car. Further the at least one stator beam part of the transfer node is a rotating stator beam part, which is mounted to the transfer node so that it can rotate about a horizontal axis, too. The elevator further comprises at least one second actuator supported by the transfer node to which the rotating stator beam part is mounted so that it can be pivoted around the horizontal axis together with the mover. This of course requires that the rotating axis of the rotating stator beam part is aligned with the rotating axis of the mover. After rotating the rotating stator beam parts of the transfer node via the second actuator, the elevator car can then be transferred to a second stator beam structure which extends horizontally or is inclined with respect to the vertical axis. This offers the transfer of elevator cars in a three-dimensional space, e.g. in an elevator system which comprises distributed elevator shafts which are not simply arranged side by side.
The second actuator can be provided in connection with each rotating stator beam part. Alternatively, one second actuator can be provided on one side of the transfer node, which - via a mechanical transmission - is able to turn all rotating stator beam parts simultaneously.
While the pivoting of the transfer node enables the exchange of elevator cars between adjacent vertical elevator shafts/runways, this solution with the rotating stator beam parts offers the possibility to connect a vertical elevator shaft with an inclined or horizontal movement passage, e.g. for connecting distributed vertical elevator shafts or to transfer elevator cars to a parking or maintenance area in times of low traffic, which leads to a cost effective elevator operation, as the number of elevator cars can be adjusted to the traffic demands.
Preferably, the elevator comprises a means to align the rotation axis of the rotating stator beam part and the mover. This alignment can be realized e.g. by means of a bumper structure defining the upper or lower end position of the elevator car on the rotating stator beam parts, limit stops on the rotating stator beam parts or the like. The alignment means can also be an electric control means supported by sensors which exactly sense the position of the elevator car (or the movers) on the rotating stator beam parts to allow exact alignment of the horizontal turning axes of the rotating stator beam part and the corresponding mover.
Advantageously, the linear motor comprises a second stator beam structure extending in a non-vertical direction, preferably in horizontal direction, and wherein the transfer node is arranged at the end of the second stator beam structure. Thus, the elevator car can be shifted after a turning movement of the rotating stator beam parts via the second actuator to a horizontal or inclined movement path. This enables e.g. the transfer of cars between areas with a different base level, e.g. in malls. If a further transfer node with turnable rotating stator beam parts is again located at the end of the horizontal or inclined movement path, the elevator car can again be shifted to a vertical elevator shaft.
In a preferred embodiment of the invention the second stator beam structure is arranged to establish a movement path for elevator car outside of a plane of movement defined by the movement paths of the elevator car along the first stator beam structures in the two adjacent shafts. For a transfer of the elevator car the first actuator and the second actuator are co-operated by the elevator control to align the rotating stator beam parts of the transfer node with the second stator beam structure. As it has been mentioned above the turning movement of the transfer node around the vertical axis combined with the turning movement of rotating stator beam part and mover allows a comparably free distribution of elevator cars in the three-dimensional space as long as the different movement paths of the elevator car do not hamper each other.
For safety reasons, the movers are preferably fixed to the (rotating) stator beam parts of the transfer node via a locking means for the duration of rotation of the transfer node, for example with mechanical limit stops, detents etc.. Alternatively or additionally in case of a propulsion concept of the linear motor using permanent magnets, the mover(s) can be locked to the stator beam part(s) by deactivating the windings so that mover and rotating stator beam part clutch together by the force of the permanent magnets.
Preferably, each elevator car has four movers, two one above the other for each first stator beam structure which consists usually of two stator beams. This provides a good load distribution and car balance and additionally allows high propulsion forces for elevator cars with a large capacity.
It is clear for the skilled person that the above mentioned embodiments of the invention can be combined with each other arbitrarily.
Following terms are used as synonyms: elevator shaft - elevator runway; actuator - pivot drive; transfer node - transfer structure; 14 - 14a, 14b, 14c, 14d;

Brief description of the drawings

The invention is now described by the enclosed schematic drawings.

Fig. 1: shows a side view on two adjacent shafts separated by a support structure with a transfer node at the upper as well as at the lower end thereof;
Fig. 2: a side view on a transfer node according to the view II from Fig. 1;
Fig. 3: a top view on a transfer node carrying one elevator car according to the view III in Fig.1 and Fig. 2;
Fig. 4: a front view IV of the elevator shaft arrangement according to Fig. 1 but additionally with a horizontally extending second stator beam structure of a horizontal movement path;
Fig. 5: a side view according to Fig. 2 of a transfer node with horizontally pivotable rotating stator beam parts, and
Fig. 6: a detailed top view according to view V-V from Fig. 5.

Description of the preferred embodiments

Fig. 1 shows an elevator 10 with two adjacent parallel elevator shafts 12a, 12b in which several elevator cars 14a, 14b, 14c are running in a vertical up-down direction as indicated by the arrows. The vertical movement paths of the cars form a plane P identical with the plane of drawing. The elevator cars 14a, 14b, 14c are moved by a linear motor comprising a first vertical stator beam structure 16, 18 for each elevator shaft 12a, 12b. The two vertical first stator beam structures 16, 18 are supported by a common support structure 20 separating the two elevator shafts 12a, 12b. Each first stator beam structure 16, 18 comprises two spaced apart parallel stator beams 22a, 22b (Fig. 4).
The stator beams 22a, 22b comprise stator poles preferably made of iron or permanent magnets, but they may also carry winding. The stator beams 22a,b of the first stator beam structure 16, 18 are in electro-magnetic engagement with movers 24 mounted on one side of each elevator car 14a, 14b, 14c, carrying the complementary electro-magnetic components of the linear motor, preferably windings and permanent magnets. Each elevator car 14a, 14b, 14c carries four movers 24, two movers spaced apart one above each other for each of the stator beams 22a,b of the first stator beam structure 16, 18.
At the top of the support structure 20 and aligned therewith is an upper transfer node 26 and at the bottom of the support structure 20 and aligned therewith is a lower transfer node 28, which are both turnable around a vertical pivot axis x. The turning movement of the transfer nodes 26, 28 is controlled by an elevator control via a first actuator or pivot drive 30, which is here mounted to the support structure 20. Of course , the first actuators 30 could also be mounted to the shaft ceiling or shaft bottom. Each transfer node 26, 28 comprises a flat mounting structure 32 and stator beam parts 16a and 18a on the opposite sides of the flat mounting structure 20 in vertical extension of and aligned with the first stator beam structure 16, 18 of both shafts 12a, 12b.
As it can be seen with the lower elevator car 14b, each transfer node 26, 28 is able to carry on its stator beam parts 16a, 18a the movers 24 of an elevator car 14a, 14b, 14c, whereby the transfer node 26, 28 is even able to carry an elevator car 14 on each of its opposite sides simultaneously. With the turning movement via the first actuator 30 by 180 degrees the elevator car 14 is moved from the first elevator shaft 12a to the second elevator shaft 12b at the end of the turning movement, which is shown in the figure.
This solution thus allows an easy transfer of an elevator car 14a, 14b, 14c out of the elevator shaft 12a, 12b, e.g. for transfer of the elevator cars 14a,b,c between several elevator shafts 12a, 12b as shown herein.
Fig. 2 shows the front view II of the lower turning node 28 of Fig. 1, whereby the upper turning node 26 looks the same. The drawing shows the flat mounting structure 32 on which the two parallel and spaced apart vertical stator beam parts 16a are mounted.
The opposite side of the transfer node 26, 28 looks the same whereby the vertical stator beam parts 16a, 18a on the opposite sides are mounted in a mirror fashion to the flat mounting structure 32 of the transfer node 26, 28. Together with the central pivot axis x this leads to a situation where after each turn the vertical stator beam parts 16a, 18a are exactly aligned with the first stator beam structure 16, 18 on the other side and vice versa.
Fig. 3 shows the mirror-fashioned mounting concept of the vertical stator beams 22a,22b on both sides of the flat mounting structure 32 of the transfer node 26, 28. In an embodiment which is understood in connection with the next figures, the movers 24 are mounted to the elevator cars 14a, 14b, 14c via horizontal pivot mounts 34, allowing the movers 24 being turned around a horizontal pivot axis y.
Fig. 4 shows a front view IV of the elevator 10 of Fig. 1, whereby the same reference numbers are used for all identical or functionally identical parts.
Accordingly, the elevator 10 comprises - additionally to what is shown in Fig. 1 - a lower horizontal movement path 36 with a horizontal second stator beam structure 38 comprising two parallel and spaced apart horizontal stator beams 40a, 40b. The horizontal movement path 36 extends perpendicular to the plane P which is defined by the vertical movement paths in the first and second elevator shaft 12a, 12b.
The transfer of an elevator car 14 from the vertical elevator shaft 12a into the horizontal movement path 36 occurs via the lower transfer node 28, which carries not only the first stator beam parts 16a but also second stator beam parts 38a in extension of the horizontal second stator beam structure 38 of the horizontal movement path 36.
At the crossings of the first stator beam parts 16a and the second stator beam parts 38a second actuators 42 are located forming a controlled motor driven horizontal pivot bearing for supporting a rotating stator beam part 44. The rotating stator beam part 44 can, according to the rotary position, been brought into alignment either with the first stator beam parts 16a or with the second stator beam parts 38a, of course by a synchronized turning movement of the rotating stator beam parts 44 together with the movers 24 supported on the pivot mounts 34 of the elevator cars 14.
For the turning movement of the rotating stator beam parts 44 together with the movers 24 of the elevator car 14 (see Fig. 6) the horizontal rotation axis of the turning beam parts 44 must be brought into alignment with the turning axis of the pivot mount 34 on the elevator car 14. This can be done in a mechanical way e.g. by limit stops on the rotating stator beam parts 44 or electronically controlled by determining the exact position of the movers 24 on the rotating stator beam parts 44 and fixing the car 14 in the aligned position during the turning of the transfer node 28 and the turning beam parts 44.
The second actuators 38 are controlled by the elevator control to connect a car 14a, 14b, 14c supported by its movers 24 on the rotating stator beam parts 44 either to the first vertical shaft 12a or to the horizontal movement path 36. The horizontal movement path 36 may lead to a parking or maintenance area or to another remote vertical elevator shaft. As the rotation of the second actuators 42 is freely controllable, the horizontal movement path may also be inclined by an angle different from 90 degrees to the vertical direction.
Fig. 5 and 6 show the lower transfer node 28 in detail whereby Fig. 6 shows the turning action of the second actuator 42 after the pivot axis of the turning beam part 44 and the pivot mount 34 of the mover 24 are aligned.
The invention is not restricted to the embodiments in the drawing but may be varied within the scope of the appended patent claims.

List of reference numbers

10: elevator
12a,b: elevator shafts
14a,b,c: elevator cars
16: first stator beam structure of first elevator shaft as part of a linear motor
16a: stator beam parts of first stator beam structure of the first shaft, carried by the transfer node
18: first stator beam structure of second elevator shaft as part of a linear motor
18a: stator beam parts of first stator beam structure of the second shaft, carried by the transfer node
20: support structure between the shafts carrying the first stator beam structures
22a,b: two parallel and spaced apart stator beams of the first stator beam structure
24: movers of an elevator car as part of the linear motor
26: upper transfer node
28: lower transfer node
30: first actuator - first pivot drive carried by the support structure
32: flat mounting structure of the transfer node for the stator beam parts
34: horizontal pivot mount of the movers on the elevator car
36: horizontal movement path
38: horizontal second stator beam structure
38a: stator beam parts of second stator beam structure of the second shaft, carried by the transfer node
40a,b: two parallel and spaced apart horizontal stator beams of the second stator beam structure
42: second actuator supported by the transfer node having a horizontal pivot bearing for a rotating stator beam part
44: rotating stator beam part mounted to the horizontal pivot bearing

Claims

An elevator (10), comprising:
several elevator cars (14a, 14b, 14c, 14d) driving in at least one elevator shaft (12a, 12b);

a linear motor (16, 16a, 18, 18a, 22a, 22b, 24, 38, 38a) comprising
- a vertical first stator beam structure (16, 18) comprising at least one stator beam (22a,22b) mounted to a vertical support structure (20) of the elevator shaft (12a, 12b), and

- at least one mover (24) coupled to each elevator car (14a, 14b, 14c, 14d) and co-acting with the first stator beam structure (16, 18) to provide a propulsion force, characterized in that at least one transfer node (26, 28) is arranged along the length and/or at the upper and/or lower end of the first stator beam structure (16, 18), which transfer node (26, 28) comprises at least one stator beam part (16a, 18a, 36a, 44) of the linear motor for receiving the mover (24) of the elevator car (14a, 14b, 14c, 14d) from the first stator beam structure (16, 18), and that the transfer node (26, 28) is arranged to rotate via a first actuator (30) around a vertical pivot axis (x).
Elevator (10) according to claim 1, wherein the first stator beam structure (16, 18) comprises two spaced apart parallel stator beams (22a, 22b).
Elevator (10) according to claim 2, wherein the vertical pivot axis (x) is located between the two spaced apart stator beams (22a, 22b), preferably in the middle thereof.
Elevator (10) according to one of the preceding claims, wherein the stator beam parts (16a, 18a) form(s) the upper and/or lower end of the first stator beam structure (16, 18).
Elevator (10) according to one of the preceding claims, wherein the transfer node (26, 28) is arranged between two adjacent parallel elevator shafts (12a, 12b), and the stator beam parts (16a, 18a) of both elevator shafts (12a, 12b) are fixed to the transfer node (26, 28).
Elevator (10) according to claim 5, wherein the transfer node (26, 28) is configured to rotate between the adjacent shafts (12a, 12b) such that the stator beam parts (16a, 18a) of the first stator beam structures (16, 18) of both shafts (12a, 12b) are exchanged, when the transfer node (26, 28) is pivoted by 180 degrees.
Elevator (10) according to claim 5 or 6, wherein the support structure (20) is a steel frame structure carrying the first stator beam structures (16, 18) for both elevator shafts (12a, 12b) on its opposite sides.
Elevator (10) according to one of the preceding claims, wherein the transfer node (26, 28) comprises a flat mounting structure (32) for the stator beam parts (16a, 18a, 38a).
Elevator (10) according to one of claims 5 to 7 and 8, wherein the flat mounting structure (32) of the transfer node (26, 28) forms a separating wall between the two adjacent elevator shafts (12a, 12b).
Elevator (10) according to claim 9, wherein the stator beam parts (16a, 18a) of the first stator beam structures (16, 18) of both elevator shafts (12a, 12b) are mounted on the opposite sides of the flat mounting structure (32).
Elevator (10) according to one of the preceding claims, wherein the first actuator (30) is attached to the support structure (20) or to the bottom or ceiling of the elevator shaft (12a, 12b).
Elevator (10) according to one of the preceding claims, wherein the vertical pivot axis is the center axis of the transfer node (26, 28), preferably the center axis of the flat mounting structure (32).
Elevator (10) according to one of the preceding claims, wherein the at least one stator beam part (16a, 18a) is a vertical stator beam part which is immovably fixed to the transfer node (26, 28).
Elevator (10) according to one of claims 1 to 12, wherein the at least one mover (24) is arranged to rotate about a horizontal axis, and wherein the at least one stator beam part of the transfer node (26, 28) is a rotating stator beam part (44) which is mounted rotatably around a horizontal axis to the transfer node, and wherein the elevator (10) comprises at least one second actuator (42) mounted to the transfer node (26, 28) configured for rotating the rotating stator beam part (44) together with the mover (24) when the rotating axis of the rotating stator beam part (44) is aligned with the rotating axis of the mover (24).
Elevator (10) according to claim 14, which elevator comprises means to align the rotation axis of the rotating stator beam part(44) and the mover (24).
Elevator (10) according to claim 14 or 15, wherein the linear motor comprises a second stator beam structure (38) extending in a non-vertical direction, preferably in horizontal direction, and wherein the transfer node (28) is arranged at the end of the second stator beam structure (38).
Elevator (10) according to one of claims 14 to 16, wherein the second stator beam structure (38) is arranged to establish a movement path (36) for elevator car (14a, 14b, 14c, 14d) outside of a plane (P) of movement defined by the movement paths of the elevator car (14a, 14b, 14c, 14d) in the two adjacent shafts (12a, 12b), and wherein the first actuator (30) and the second actuator (42) are co-operated to align the rotating stator beam parts (44) of the transfer node (26, 28) with the second stator beam structure (38).
Elevator (10) according to one of the preceding claims, comprising a locking means for locking the mover(s) (24) on the stator beam part(s) of the transfer node (26, 28) during its turning movement.