FI82918B - Device for guiding a lift in the lateral direction - Google Patents

Description

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EQUIPMENT FOR CONTROLLING AN ELEVATOR IN THE SIDE-ANORDING FOR THE STEERING AV EN HISS I SIDORIKTNING

The present invention relates to an apparatus for controlling an elevator in the lateral direction, the apparatus comprising guides in the control units, supported by which the elevator car moves.

The elevator car oscillates laterally, for example due to the unevenness of the guide, the pressure fluctuations in the elevator shaft and the lightness of the elevator car.

In current elevator controllers, the lateral oscillation of the elevator car is damped mainly by the spring constant of the spring attached to the controller. End travel is limited by a fixed motion limiter, which transmits shocks to the car. Current solutions aim to dampen the head cushion with a rubber cushion. Due to the rigidity of the rubber and the shortness of movement, a sufficiently flexible solution cannot be reached. In addition to the fixed limiter, a second spring can be used to approach the end point.

JP patent publication 55-25589 discloses an elevator in which permanent magnet guides are arranged in and close to the elevator shaft. matched permanent magnet controllers. The elevator is fluidly supported by utilizing the magnetic repulsive force of said permanent magnet guides and guides.

The object of the present invention is to obviate the drawbacks of the prior art. The apparatus for controlling an elevator laterally is characterized in that each control unit has magnets for damping the lateral oscillation of the elevator car, at least two of which are mounted poles of the same sign against each other.

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A preferred embodiment of the apparatus according to the invention is characterized in that the control unit has at least one pivoting lever on which one of the two opposing magnets is mounted.

Another preferred embodiment of the apparatus according to the invention is characterized in that the control unit has at least four magnets which are in an oblique position with respect to the central axis of the controller.

Yet another preferred embodiment of the apparatus according to the invention is characterized in that the guide unit has at least four magnets, one of which is attached to the guide and the other three magnets against the substantially vertical surfaces of said magnet.

Yet another preferred embodiment of the apparatus according to the invention is characterized in that the control unit has three controllers, two controllers mounted on the sides of the conductor and one conductor at the end of the conductor, and five magnets, two magnets mounted fixedly, the other two magnets mounted on conductors such that the poles of the same brand as the first two magnets are opposed to each other, and one magnet on the controller such that the poles of the same brand with the other magnets mounted on the controllers are closest to each other, thereby providing a damping force to said three controllers.

Yet another preferred embodiment of the fluffy apparatus of the invention is characterized in that the control unit has at least six magnets, three of which are mounted on the vertical wall of the controller and three magnets on the controller body or other fixed location.

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Another preferred embodiment of the apparatus according to the invention is characterized in that in the control unit cm three guides, two guides mounted on the sides of the conductor and a third guide at the end of the conductor, and six magnets, three magnets mounted on the controller and three magnets against each magnet in the controller, that poles of the same brand are against each other.

Yet another preferred embodiment of the apparatus according to the invention is characterized in that the magnets are electromagnets.

Yet another preferred embodiment of the apparatus according to the invention is characterized in that the force effect between the magnets is adjusted.

Yet another preferred embodiment of the apparatus according to the invention is characterized in that the magnets are permanent magnets.

Current permanent magnets are efficient and take up little space.

Yet another preferred embodiment of the apparatus according to the invention is characterized in that the control unit has springs, whereby the oscillation in the lateral direction is damped by means of both magnets and springs.

The movement possibilities of the elevator car in the lateral directions, both in the depth and lateral direction of the elevator car, are very limited. To achieve good driving comfort, the acceleration values and acceleration derivatives in the lateral directions should be small. The oscillation frequencies from 1 to 10 Hz are important. Ko. the invention provides a progressive damping force in the elevator guides.

4,82918 When a "magnetic spring" is used in combination with a mechanical spring, for example a coil spring, a wider adjustment range in terms of the elastic properties of the guide is achieved.

At the same time, a low spring constant with small amplitudes of motion can be used. When the spring is very loose, the lateral oscillation of the elevator due to the unevenness of the guide can be suppressed supercritically. However, the shock stimuli caused by the air pressure differences, etc. in the elevator shaft strike the bottom of the loose spring, whereby the shock is transmitted to the elevator car. It is precisely these shocks that can be damped by means of a "magnetic spring". In addition, in current solutions, when a low value of the spring constant of a mechanical spring is used, there is an elasticity curve showing the force as a function of distance, each time the step approaches the end position. This causes a big jerk. When using rubber and plastic pads, the spring constant is often too high. Due to the low surface pressure duration of these materials, a sufficiently flexible solution cannot be achieved.

The invention avoids the high accelerations that occur in the constructions in use, which occur when driving on the motion limiters. The invention creates the possibility of low acceleration levels in the elevator car. This can improve the driving comfort of the elevator.

Because the force curve produced by the magnet is progressive in nature, collisions of the end position of the guide are eliminated, and with small lateral movements of the elevator, a small value of the spring constant can be used.

The apparatus according to the invention achieves a simple mechanical structure.

In the following, the invention will be described in more detail by means of examples with reference to the accompanying drawings, in which I.

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Figure 1a shows an elevator car moving between guides and supported by guides.

Figure 1b shows an apparatus for controlling an elevator in the lateral direction.

Figure 2 shows the elastic curve of an elevator suspended by means of a permanent magnet alone.

Figure 3 shows the elasticity curve of the guide when the mechanical spring and the "magnetic spring" are connected in parallel.

Figure 4 shows an embodiment using four magnets per guide.

Figure 5 also shows a control unit implemented with four magnets.

Figure 6 shows a control unit with three roller guides.

Fig. 7 shows a control unit in which the lateral oscillation of the sliding guide running in the guide is damped by six magnets.

Figure 8a shows a side solution implemented with six magnets.

Figure 8b shows a solution implemented with six magnets.

Figure 9 shows a solution implemented with electromagnets.

In Fig. 1a, the elevator car 10 moves between the guides 1 supported by guides. The forces between the guides 1 and the elevator car 10 are received by means of guides. Figure 1a shows an enlarged view of the apparatus for guiding the elevator laterally according to point A of Figure 1a. In order to improve the driving comfort of the elevator, the damping movement in the elevator guides is handled with the help of permanent magnets. In this case, the shocks to the chicory 10 can be damped. The rubber-faced guide rollers 6 resting on the elevator guide 1 are spring-loaded by means of a lever 3 and an adjusting nut and a spring 5 therein. A "magnetic spring" consisting of two permanent magnets 8a and 8b is mounted in parallel with the spring. This creates an increasing force that resists the movement of the elevator as it moves away from the equilibrium position of the elevator. One of the permanent magnets 8a is attached to the pivoting lever 3 by means of an antimagnetic fastener 7, the other to the body 2 of the control unit by means of an antimagnetic, adjustable support 9.

Permanent magnets are mounted on surfaces of the same brand against each other, creating an outward force on the surfaces. In the case of the elevator controller, this means that when approaching the end position, the damping force against the movement of the elevator increases strongly. This provides progressive suspension. The suspension can be implemented by means of magnets alone or by connecting a spring and magnets in parallel. The magnetic field in the magnets can also be electrically operated. In this case, the field strength can be easily adjusted electronically. Figure 2 shows the elastic curve of an elevator suspended by means of a permanent magnet alone. The vertical axis represents the force F and the horizontal axis the lateral distance s. At the intersection of the axes, the controller has no load, so that the elevator is in equilibrium. The dashed line represents the end point of the movement. Figure 3 shows the elasticity curve of the guide when the mechanical spring and the "magnetic spring" are connected in parallel. In the vicinity of the equilibrium position with small amplitudes of lateral movement, the spring constant of the mechanical spring determines the spring force of the guide up to the point line. As the movement increases, the spring force of the guide is determined by one of the mechanical springs ti 7 82918 and the permanent magnets. In both options, the distance between the magnets, the magnetic flux density, and the surface area are obtained by changing the adjusted elasticity curve of the magnet as desired.

Figures 4 to 9 show applications of the above implementation. Both roller and slider controls can be used in the equipment. In addition, the spring constant can be achieved either by using a permanent magnet alone as a progressive spring or in combination with a mechanical spring.

Figure 4 shows an embodiment in which four magnets are used per guide. Figure 4 uses a sliding guide 11 which slides in a guide 12. Two magnets 13 and 14 are attached to the guide 11. Two other magnets are attached to the elevator car or gripper so that the pole (S) of the same mark on one of the magnets 13 or 14 attached to the guide is opposite one. with a magnet 15 or 16 attached to the basket or gripper. The magnets 13 to 16 are in an oblique position with the common central axis A of the guide 11 and the guide, so that the central axis B of the opposing magnets forms an angle α with the axis A of about 45 *. This results in damped oscillation in different oscillation directions. In addition, three springs 17 to 19 are used, of which two springs 17 and 18 dampen oscillations transverse to the common central axis A of the guide 12 and the guide 11 and one spring 19 oscillates oscillations in the direction of said axis.

Figure 5 also shows a guide unit implemented with four magnets, in which the sliding guide 20 slides along the guide 21. Attached to the guide 20 is a magnet 21 on one side. Near the other three vertical sides of said magnet 21 are magnets 22 to 24 attached to an elevator car or gripper, two magnets 22 and 23 mounted so as to have hinge markings with the guide magnet 21 (82918) ( N, S) opposite, causing them to reject each other. The third magnet 24 is mounted on the opposite side of the guide mounting surface of the magnet 24 so that the opposing surfaces of the magnet 21 and the third magnet 24 attached to the guide repel each other. In addition, Fig. 5 has springs 25-27 as in Fig. 4.

Figure 6 shows a guide unit with three roller guides 28-30 located on three sides of the guide 31. The control unit according to Fig. 6 has five magnets 32 to 36, of which two outer magnets 32 and 36 are attached to the elevator car or gripper. Mounted against them are surfaces (S) of the same sign, said magnets 33 and 35 against said magnets 32 and 36, which are fixed to the guides 29 and 30 on the sides of the guide by levers and Vj, and which dampen oscillations perpendicular to the sides of the guide 31. On the conductor side 31 of these second magnets 33 and 35 there is a Fifth magnet 34 which is attached to a guide 28 at the end of the conductor. Its poles (S, N) are positioned so that the poles at the ends of the fifth magnet 34 are the same as the closest magnets 33 and 35. with the hub. In this case, a force is generated in each guide, which pushes the guide towards the guide 31.

Fig. 7 shows a control unit in which the lateral oscillation of the sliding guide 38 in the guide 37 is damped by six magnets 39-44. Three magnets 39, 41 and 43 are mounted on three vertical walls of the guide shoe 38, the other three magnets 40, 42 and 44 on the guide body the poles (N) of the same sign of the magnet in question and the magnet in the body of the guide are against each other to dampen the side oscillation. The control unit also has a spring 45-47 connected to each pair of magnets.

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Figures 8a and 8b show a solution implemented with six magnets. There, three guide rollers 49-51 run along the guide 48. In Fig. 8a the guide unit is shown from the side and in Fig. 8b from above. One guide roller 49 is mounted at the end of the guide 48 and two other rollers 50 and 51 are mounted on the sides of the guide 48. Each roller is attached to the control unit body or elevator car 55 by a pivoting lever 52-54. One magnet 56-58 is attached to each lever and three magnets 59-61 to the control unit body 62 such that each of said three magnets is always close to one magnet attached to the lever, that the surfaces of the same sign (S) are against each other. The distance between the opposing magnets must be adjusted. In addition, springs 63 to 65 are connected in parallel with the magnets.

Fig. 9 further shows the apparatus of Fig. 1b, wherein the magnets are electromagnets 66 and 67.

It will be clear to a person skilled in the art that the various embodiments of the invention are not limited exclusively to the above examples, but may vary within the scope of the claims set out below.

Claims (11)

An installation for controlling a lateral elevator, wherein the elevator basket (10; 55) is supported by control means (6; 11; 28-30; 38; 49-51) in control units, characterized in that one in the elevator basket (10; 55) 10; 55) lateral oscillation occurs attenuated by magnets (8a, 8b; 13-16; 21-24; 32-36; 39-44; 56-61; 66.67) in each controller, the magnets of which are at least two are mounted with poles with the same sign against each other. Installation according to claim 1, characterized in that there is at least one pivotable lever (3; 52-54) in a control unit, on which is mounted one of two opposing magnets (8a; 56-58; 66). Installation according to claim 1, characterized in that there is at least four magnets (13-16) in a control unit which are in an oblique position with respect to the central axis (A) of the control means (11). Installation according to claim 1, characterized in that there is in at least one magnet (21-24) in a control unit, of which one magnet (21) is attached to the control means (20) and three other magnets (22-24) against surfaces which are substantially vertical of said magnet. Installation according to claim 1, characterized in that there are three control means (28-30) in a control unit, two of which control means (29,30) are mounted on the sides of a conductor (31) and a control means (28) on the conductor and five magnets (32-36) of which two magnets (32.36) are fixedly mounted and two other magnets (33.35) are mounted on guide means (29.30) on the sides of the conductor (31), so that their poles having the same sign as the two first-mentioned magnets (32, 36) are opposite, and a magnet (34) on the control means (28), so that its poles having the same sign (S, N) as on the other on the control means The (29,30) mounted magnets (33,35) are closest to each other, thereby providing a damping force to the three control means by means of the magnets. Installation according to claim 1, characterized in that there are at least six magnets (39-44) in the control unit, of which three magnets (39,41,43) are mounted on the vertical wall of the control means (38) and three magnets (40,42). 44) in the body of the control body or some other stationary place. Installation according to claim 1, characterized in that there are three control means (49-51) in the control unit, two of which control means (50,51) are mounted on the sides of the conductor (48) and the third control means (49) on the end of the conductor, and six magnets (56-61), of which three magnets (56-58) are mounted on the control means and three magnets (59-61) against each magnet on the control means, so that poles with the same sign (S) are facing each other. 8. Plant according to any of the preceding claims, known as e -. drawing that the magnets are electric magnets (66.67). • * 9. Plant according to any of the preceding claims, characterized e. characterized in that the force effect between the magnets (66,67) is regulated. »·« Installation according to any of claims 1-7, characterized in that the magnets are permanent magnets (8a, 8b; 13-16; 21-24; 32-36; 39-44; 56-61). ·· 11. Installation according to any of the preceding claims, known - "characterized by the existence of springs (17-19; 25-27; 45-47; 63-65) in which the sway is attenuated both with the magnets. and springs. • · • · |.