JP2019043749A - Multi-car elevator - Google Patents

Abstract

To provide a multi-car elevator that is able to prevent sudden movement of a car, caused by a slack of a rope, resulting from getting on/off of passengers.SOLUTION: A multi-car elevator comprises: a suspending rope 13 supported by a pulley 18; car brakes 14A, 14B that can be braked with respect to rails 15A, 15B fixed to a hoistway; and position adjusting means 16A, 16B disposed between the cars 10A, 10B and the rope 13 and capable of adjusting relative positions of both. When the plurality of cars 10A, 10B respectively reach car stops, brake forces are respectively applied by the car brakes 14A, 14B, and the plurality of cars 10A, 10B are fixed to rails 15A, 15B. After passengers get on or get off the plurality of cars 10A, 10B, the position adjustment means 16A, 16B are operated. After respective position adjustments by the position adjustment means 16A, 16B are finished, car brakes 14A, 14B are opened.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a multicar elevator.

  An elevator is put into practical use as a system for vertically transporting people in a high-rise building or the like. In a conventional elevator, a car carrying a passenger is suspended by a rope and lifted and lowered by a hoist. Generally, in order to miniaturize a hoist driving a rope and to reduce power consumption, a counterweight is suspended on the rope to balance gravity with the weight of the car.

  In order to increase the number of people transported, multi-car elevators have been devised in which elevators are equipped with a counterweight. In this multi-car elevator, a plurality of cars are suspended by one set of ropes. For this reason, when one car stops at the landing, if there is a difference in the distance between the landings, the other cars will stop at a position deviated from the landing. That is, a step is generated between the other cars and the landing.

  In order to solve this problem, for example, the technology described in Patent Document 1 has been proposed. Patent Document 1 discloses an elevator in which a landing error with a car and a landing is detected, and the height of a connecting portion of a rope is corrected based on the error.

  In addition, when a passenger gets in and out of the car landing on the landing, the load on the car changes, so the car may vibrate up and down due to the expansion and contraction of the ropes hanging the car.

  In order to solve this problem, for example, the technology described in Patent Document 2 has been proposed. Patent Document 2 discloses an elevator that brakes a fixed member fixed to a hoistway using a car brake installed in a car.

Unexamined-Japanese-Patent No. 2010-2087801 Patent No. 5390988 gazette

  In the elevator disclosed in Patent Document 1, when the number of passengers changes while the car stops at the landing, the tension of the rope changes, so the extension of the rope also changes and the car deviates from the landing. In order to correct this deviation, the height of the connecting portion of the rope is constantly adjusted during the passenger getting on and off, but the adjustment for the passenger getting on and off is not in time, and the car shakes.

  Further, in the elevator disclosed in Patent Document 2, since the movement of the car due to the change in the elongation of the rope described above is allowed, the car may deviate from the landing during the getting on / off of the passenger, or the passenger in the car may There was a risk of being exposed to unpleasant shaking.

  An object of the present invention is to solve the above-mentioned problems and to provide a multicar elevator capable of suppressing a rapid movement of a car due to the extension of the rope when the passenger gets on and off the car. .

  In order to achieve the above object, a feature of the present invention is to connect a plurality of cars arranged in the hoistway, a pulley arranged on the upper part of the hoistway, and the plurality of cars. Together with the rope supported and suspended by the pulley, a car brake capable of braking a fixed member fixed to the hoistway and attached to each of the plurality of cars, and the plurality of cars A multi-car elevator including position adjusting means attached to at least one vehicle and disposed between the vehicle and the rope so that the relative position of the two can be adjusted; When the car arrives at the landing, the braking force by the brake is applied to fix the plurality of cars to the fixed member, and after the passenger getting on and off the plurality of cars is completed To operate said position adjusting means, after the position adjustment completion by the position adjusting means, in that so as to open the brake.

  According to the present invention, it is possible to provide a multi-car elevator capable of suppressing the rapid movement of the car due to the extension of the rope as the rope is extended as the passenger gets on and off the car.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic block diagram of the multi car elevator which concerns on 1st Example of this invention. It is a figure which shows the structure of position adjustment means 16A, 16B which concerns on 1st Example of this invention. It is a figure showing the control flow of the multicar elevator concerning a 1st example of the present invention. It is a schematic block diagram of the multicar elevator which concerns on 2nd Example of this invention. It is a schematic block diagram of the multicar elevator which concerns on 3rd Example of this invention. It is a top view of the multicar elevator which concerns on 3rd Example of this invention.

  Hereinafter, an embodiment of a multi-car elevator according to the present invention will be described based on the drawings. The present invention is not limited to the following embodiments, and includes various modifications and applications within the technical concept of the present invention.

  FIG. 1 is a schematic block diagram of a multicar elevator according to a first embodiment of the present invention.

  In FIG. 1, a plurality of cars 10A and 10B are disposed in a hoistway (not shown). The car 10A, 10B is composed of a car room 11A, 11B in which a passenger rides, and a car outer frame 12A, 12B for supporting the car room 11A, 11B. In addition, the car cages 10A and 10B are connected and suspended by a pair of ropes 13, and are provided with car brakes 14A and 14B, respectively. Each of the car brakes 14A and 14B can selectively fix the cars 10A and 10B to the rails 15A and 15B (fixing members) fixed to the hoistway. Further, position adjusting means 16A, 16B (first position adjusting means) are provided between each of the car 10A, 10B and the rope 13, and the relative position between them in the vertical direction is controlled. Position adjustment means 16A, 16B are respectively provided on the upper portions of the car outer frames 12A, 12B.

  A pulley 18 (first pulley) driven by an electric motor is rotatably connected to the hoisting machine 17 for raising and lowering the cars 10A and 10B, and supports the rope 13 by winding. In the present embodiment, the hoisting machine 17 and the pulley 18 are disposed above the hoistway. The rope 13 connects the plurality of cars 10A and 10B and is supported by the pulley 18 to suspend the plurality of cars 10A and 10B. The positions of the pulleys 18 and the landings 19A, 19B and the length of the rope 13 are designed such that when the car 10A is stopped at the landing 19A, the car 10B can stop at the landing 19B.

  Between the car compartments 11A and 11B and the car outer frames 12A and 12B (lower parts of the car compartments 11A and 11B), weight detection means 20A and 20B for detecting the weight of the passenger getting on the car compartments 11A and 11B are provided. ing.

  On upper portions of the car outer frames 12A and 12B, there are provided a tension detection means 21A and 21B (first tension detection means) for detecting tension acting between the car 10A and the rope 13 and between the car 10B and the rope 13. It is done.

  Moreover, the multi-car elevator of the present embodiment is provided with a control device 30 that controls each device. The control device 30 includes a winding machine control means 31 for controlling the hoisting machine 17, a brake control means 32 for controlling braking / releasing of the car brakes 14A and 14B, and detection results of weight detection means 20A and 20B. Based on the total weight calculation means 33 for calculating the total weight of each of the cars 10A and 10B, and based on the detection results of the tension detection means 21A and 21B, the car 10A and the rope 13, and the car 10B and the rope 13 And tension command means 35 for outputting a command signal of the adjustment amount to the position adjustment means 16A and 16B based on the calculation result of the tension calculation means. .

  Next, the configuration of the position adjustment means 16A, 16B will be described using FIG. FIG. 2 is a view showing the arrangement of position adjusting means 16A, 16B according to the first embodiment of the present invention.

  The position adjustment means 16A, 16B are provided with reels 36A, 36B for winding the rope 13. The reels 36A, 36B are provided with electric motors 37A, 37B, and the ropes 13 are wound by rotationally driving the reels 36A, 36B. Tension sensors 39A and 39B serving as detection units of the tension detection means 21A and 21B are attached to the rotation shafts 38A and 38B connecting the motors 37A and 37B and the reels 36A and 36B. The tension of the rope 13 can be calculated by detecting the torque (T) of the motors 37A, 37B. The tension (F) of the rope 13 is the tangential force of the reels 36A and 36B. Assuming that the rotation radius of the reels 36A and 36B is (R), the torque (T) is represented by the product of the tension (F) and the rotation radius (R). That is, T = F · R.

  From this equation, F = T / R holds, and the tension of the rope 13 can be calculated by detecting the torque (T) of the motors 37A and 37B.

  By the way, the amount of extension of the rope 13 changes due to the load of the cars 10A and 10B and the secular change. While the cars 10A and 10B are stopped at the landings 19A and 19B, respectively, they are fixed to the rails 15A and 15B by car brakes 14A and 14B. Therefore, even if the weight of the cars 10A and 10B changes due to the change in the number of passengers, no load is applied to the rope 13, so the cars 10A and 10B do not move.

  However, a load is applied to the rope 13 at the same time as releasing the car brakes 14A and 14B, and there is a possibility that the cars 10A and 10B may be lowered and greatly shaken due to the amount of extension of the rope 13. This shaking may cause passengers to feel uneasy. The method of solving this is demonstrated below.

  FIG. 3 is a diagram showing a control flow of the multicar elevator according to the first embodiment of the present invention. When the call button is pressed, the operation of the multicar elevator is started (101). The hoisting machine 17 is controlled via the hoisting machine control means 31, and the car 10A, 10B moves to the landing of the destination floor (102). When the cars 10A and 10B arrive at the landing of the destination floor, the braking control means 32 applies a braking force to the car brakes 14A and 14B and fixes them to the rails 15A and 15B (103). The doors of the cars 10A and 10B are opened, and the passengers waiting at the landings 19A and 19B are taken on / off of the cars 10A and 10B (104). At this time, since the braking force by the car brakes 14A and 14B is applied to the cars 10A and 10B, the movement of the cars 10A and 10B due to the change in weight of the passenger getting on and off the cars 10A and 10B It is suppressed.

  After completion of getting on and off the cars 10A and 10B, the doors of the cars 10A and 10B are closed (105). Since the loading load of each of the cars 10A and 10B is determined by this, the total weight (W) of each of the cars 10A and 10B including this loading is calculated (106). Weight detection means 20A and 20B are used to calculate the total weight (W). The weight detection means 20A, 20B installed between the car cabins 11A, 11B and the car outer frames 12A, 12B detect the weight of the passenger who got in the car cabins 11A, 11B. Since the car outer frames 12A and 12B themselves do not change depending on the passenger getting on and off, a value obtained by adding the weight of each of the car outer frames 12A and 12B determined in advance to the respective weights detected by the weight detection means 20A and 20B. But the total weight of each. In the present embodiment, the weights of the cage outer frames 12A and 12B are previously taken into consideration in the weights detected by the weight detection means 20A and 20B.

  Next, tension adjustment of the rope 13 by the position adjusting means 16A, 16B is performed based on the calculated total weight (W) (107). The tension command means 35 outputs a drive command signal to the motors 37A, 37B, thereby driving the motors 37A, 37B, and the rope 13 is wound around the reels 36A, 36B. The tension (F) between the reel 36A and the pulley 18, and between the reel 36B and the pulley 18 increases in the rope 13. The drive of the motor 37A is stopped when the tension (Fa) of the reel 36A and the pulley 18 detected by the tension detection means 21A and the total weight (Wa) detected by the weight detection means 20A are balanced (Fa = Wa) . Similarly, when the tension (Fb) of the reel 36B and the pulley 18 detected by the tension detection means 21B and the total weight (Wb) detected by the weight detection means 20B are balanced (Fb = Wb), the motor 37B is driven. Stop it. Thereafter, the braking force by the car brakes 14A and 14B is released (108), and the cars 10A and 10B are moved again.

  In this embodiment, the total weight of each of the cars 10A and 10B is calculated before the car brakes 14A and 14B are released, and the tension adjustment is performed based on the calculation result. It is possible to suppress the vibration of the car 10A, 10B which occurs when the car is released.

  In the present embodiment, as means for moving the car 10A, 10B, the pulley 18 is rotationally driven. However, even if the rope 13 is directly driven, either of the cars 10A, 10B is used. Alternatively, or both may be driven directly.

  Further, although a plurality of position adjustment means 16A and 16B are used in the present embodiment, one position adjustment means may be used. In the case of one position adjustment means, it is preferable to provide one tension detection means. At least one position adjustment means may be provided.

  Next, a second embodiment according to the present invention will be described with reference to FIG. FIG. 4 is a schematic block diagram of a multicar elevator according to a second embodiment of the present invention. The difference from the first embodiment is that a lower rope 40 is disposed below the cars 10A and 10B, and a second pulley 41 for winding the lower rope 40 is further provided. The same components as those in the first embodiment are assigned the same reference numerals and descriptions thereof will be omitted.

  In FIG. 4, a lower rope 40 is attached below the car outer frames 12A and 12B. Furthermore, at the lower part of the hoistway, a second pulley 41 for winding the lower rope 40 is provided. The lower rope 40 is supported by the second pulley 41 and connects the cars 10A and 10B.

  Position adjustment means 42A, 42B (second position adjustment means) are provided below the car outer frames 12A, 12B. The lower rope 40 is connected to the car 10A, 10B via the position adjustment means 42A, 42B. Furthermore, tension detection means 43A, 43B (second tension detection for detecting tension acting between the car 10A and the lower rope 40 and between the car 10B and the lower rope 40 in the lower part of the car outer frame 12A, 12B Means are provided. The position adjusting means 42A, 42B are the same as the position adjusting means 16A, 16B shown in FIG.

  The tension (Fa1) of the reel 36A and the pulley 18 detected by the tension detection means 21A, the total weight (Wa) detected by the weight detection means 20A, the tension of the reel 36A and the second pulley 41 detected by the tension detection means 21A In (Fa2), Fa1 = Wa + Fa2 holds in a balanced state.

  Further, the tension (Fb1) of the reel 36B and the pulley 18 detected by the tension detection means 21B, the total weight (Wb) detected by the weight detection means 20B, the reel 36B and the second pulley 41 detected by the tension detection means 43B. In the tension (Fb2) of the above, Fb1 = Wb + Fb2 is established in a balanced state.

  And position adjustment means 16A, 16B and position adjustment means 42A, 42B are adjusted so that the relation of Fa1 = Wa + Fa2 and Fb1 = Wb + Fb2 may be realized.

  After adjustment by the position adjustment means 16A, 16B and the position adjustment means 42A, 42B, the car brakes 14A, 14B are released.

  According to this embodiment, the total weight of each of the cars 10A and 10B is calculated before the car brakes 14A and 14B are released, and the tension adjustment is performed based on the calculation result. The shaking of the car 10A, 10B which occurs when releasing 14B can be suppressed.

  Furthermore, according to the present embodiment, since the lower rope 40 is provided in addition to the rope 13, the tension applied to the rope 13 can be reduced, and the amount of extension of the rope 13 can be suppressed.

  Next, a third embodiment according to the present invention will be described with reference to FIGS. 5 and 6. FIG. 5 is a schematic block diagram of a multicar elevator according to a third embodiment of the present invention. FIG. 6 is a top view of a multicar elevator according to a third embodiment of the present invention. A major difference from the first and second embodiments is that the car cages 10A and 10B are suspended by two sets of lobes.

In FIG. 5, the car cages 10A and 10B are suspended by two pairs of first ropes 50 and second ropes 51, and are provided with car brakes 52A, 53A, 52B and 53B, respectively.
The first rope 50 is connected to the left side of the car 10A and the left side of the car 10B, and the second rope 51 is connected to the right side of the car 10A and the right side of the car 10B.

  Each of the car brakes 52A, 53A, 52B, 53B is capable of selectively fixing the cars 10A, 10B to the rails 54A, 55A, 54B, 55B (fixed members) fixed to the hoistway. In addition, position adjustment means 56A, 56B (first position adjustment means) and position adjustment means 57A, 57B (second position) are provided between each of the cars 10A, 10B and the first rope 50, the second rope 51. Adjustment means are provided to control the vertical relative position of the car 10A, 10B. Position adjustment means 56A, 56B, 57A, 57B are respectively provided on the upper portions of the car outer frames 12A, 12B. In the present embodiment, the car 10A is provided with a plurality of position adjusting means 56A, 57A. Similarly, the car 10B is provided with a plurality of position adjustment means 56B, 57B.

  A first pulley 59 and a second pulley 60 driven by an electric motor are rotatably connected to the hoisting machine 58 for raising and lowering the cars 10A and 10B, and the first rope 50 and the second rope 51 are respectively connected. It is supported by wrapping. The positions of the first pulley 59, the second pulley 60 and the landings 19A and 19B, and the lengths of the first rope 50 and the second rope 51 are such that when the car 10A is stopped at the landing 19A, the car 10B is at the landing It is designed to stop at 19B.

  Between the car compartments 11A and 11B and the car outer frames 12A and 12B (lower parts of the car compartments 11A and 11B), weight detection means 20A and 20B for detecting the weight of the passenger getting on the car compartments 11A and 11B are provided. ing.

  Between the car 10A and the first rope 50, the car 10A and the second rope 51, and the car 10B and the first rope 50, and the car 10B and the second rope 51 in the upper part of the car outer frames 12A and 12B. Tension detecting means 61A, 61B (first tension detecting means) for detecting the tension acting on the belt, and tension detecting means 62A, 62B (second tension detecting means) are provided.

  Further, inclination angle detection means 63A, 63B for detecting the inclination of each of the car 10A, 10B are provided at the lower part of the car outer frames 12A, 12B. For example, an acceleration sensor is used as the inclination angle detection means 63A, 63B.

  The control device 30 includes an inclination angle calculation unit 64 that calculates an inclination angle based on the information from the inclination angle detection units 63A and 63B. The other device configurations are the same as in the first embodiment.

  As shown in FIG. 6, support members 70A and 70B are provided on the upper portions of the car 10A and 10B so as to connect diagonals of the car 10A and 10B, respectively. The rope attachment members 71A, 72A, 71B, 72B are attached to the support members 70A, 70B. Then, by attaching the rope attachment members 71A and 71B to the first rope 50 and attaching the rope attachment members 72A and 72B to the second rope 51, the car 10A or 10B is connected to the first rope 50 and the second rope 51. doing. The first pulley 59 and the second pulley 60 are disposed in such a way as to shift their rotational axis directions. Further, the first pulley 59 and the second pulley 60 are disposed so as to be shifted in the direction orthogonal to the rotation axis. That is, the first pulley 59 is located on the front side (the lower side in FIG. 6) and the second pulley 60 is located on the rear side (the upper side in FIG. 6) when viewed from the top of the car 10A, 10B.

  The method of calculating the total weight and the method of operating the position adjustment means 56A, 56B, 57A, 57B based on the calculation result of the tension calculation means 34 are the same as in the first embodiment, and thus the details will be omitted.

  However, in the present embodiment, inclination angle detection means 63A, 63B are provided. In the present embodiment, the first rope 50 is connected to the left side of the car 10A and the left side of the car 10B, and the second rope 51 is connected to the right side of the car 10A and the right side of the car 10B. For this reason, there is a possibility that the cars 10A and 10B may tilt.

  Therefore, in the present embodiment, the inclinations generated in the cars 10A and 10B are detected by the inclination angle detecting means 63A and 63B, and the inclination angles are calculated by the inclination angle calculating means 64 based on the detection results. Then, based on the calculated inclination angle, a correction command is given to the position adjustment means 56A, 57A, 56B, 57B via the tension command means 35 so that the car 10A, 10B becomes horizontal. Then, the position adjusting means 56A, 57A, 56B, 57B are operated to adjust the angles of the cars 10A, 10B.

  After adjustment by the position adjustment means 56A, 57A, 56B, 57B, the car brakes 52A, 52B, 53A, 53B are released.

  According to the present embodiment, before the car brakes 52A, 52B, 53A, 53B are released, the total weight of each of the cars 10A, 10B is calculated, and tension adjustment is performed based on the calculation result. The shaking of the cars 10A and 10B, which occurs when the car brakes 52A, 52B, 53A and 53B are released, can be suppressed.

  Further, according to the present embodiment, since the inclination angle calculation means 64 is provided, the cars 10A and 10B can be kept horizontal.

  In the present embodiment, the first position adjusting means, the second position adjusting means, the first tension detecting means, the second tension detecting means, and the position adjusting means are provided in each of the plurality of cars 10A and 10B. It may be provided in either one of the cars 10A and 10B. It is sufficient to provide at least one of the cars 10A and 10B.

  In the present embodiment, although an example in which two sets of the first rope 50 and the second rope 51 are suspended is described, for example, as in the second embodiment, the ropes are attached also to the lower side of the cages 10A and 10B. You may configure it. At this time, the method described in the second embodiment may be used to adjust the positions of the cars 10A and 10B.

  As described above, according to each embodiment of the present invention, a rope is extended as passengers get on and off the car, and a multi-car elevator capable of suppressing rapid movement of the car due to the extension of the rope is provided. can do.

  The present invention is not limited to the embodiments described above, and includes various modifications. The above-described embodiments are described in detail to explain the present invention in an easy-to-understand manner, and are not necessarily limited to those having all the configurations described.

10A, 10B Car 11A, 11B Car 12A, 12B Car Outer Frame 13 Rope 14A, 14B, 52A, 53A, 52B, 53B Car Brakes 15A, 15B, 54A, 54B, 55A, 55B Rails 16A, 16B, 42A, 42B , 56A, 56B, 57A, 57B Position adjustment means 17, 58 hoisting machine 18, 41 Pulleys 19A, 19B Ground 20A, 20B Weight detection means 21A, 21B, 43A, 43B 61A, 61B, 62A, 62B Tension detection means 30 Control Device 31 Winding machine control means 32 Brake control means 33 Total weight calculation means 34 Tension calculation means 35 Tension command means 36A, 36B Reels 37A, 37B Motors 38A, 38B Rotation shafts 39A, 39B Tension sensor 40 Lower rope 50 First rope 51 Second rope 59 First pulley 0 second pulley 63A, 63B inclination angle detecting means 64 tilt angle calculation means 70A, 70B support members 71A, 71B, 72A, 72B rope attachment member

Claims (8)

A plurality of passenger cars arranged in the hoistway, a pulley arranged on the upper part of the hoistway, and a plurality of cars connected with the plurality of cars are supported by the pulleys and suspended ropes, and the plurality of cars A car brake attached to each of the cars and braked to a fixed member fixed to the hoistway, and attached to at least one of the plurality of cars. A multi-car elevator comprising: one car and a position adjusting means disposed between the ropes and capable of adjusting the relative position of the two;
When the plurality of cars arrive at the landing, the car brake applies a braking force to fix the plurality of cars to the fixing member,
After the passenger getting on and off the plurality of cars, the position adjusting means is operated,
A multi-car elevator characterized in that the car brake is released after completion of position adjustment by the position adjusting means. In claim 1,
A weight detection means for detecting the weight of each of the plurality of cars;
The multi-car elevator, wherein the position adjusting means adjusts the position based on the detection result of the weight detecting means. In claim 2,
The position adjustment means includes tension detection means for detecting tension of the rope,
A multi-car elevator characterized in that the position adjusting means is operated so that weights detected by the tension detecting means and the weight detecting means are balanced. In claim 1 or 2,
The pulley is a first pulley,
A second pulley is provided below the hoistway,
A lower rope is provided at the lower part of the plurality of cars.
A multi-car elevator characterized in that the lower rope connects the plurality of cars and is supported by the second pulley. In claim 4,
The position adjusting means is a first position adjusting means,
A multi-car elevator comprising a second position adjusting means disposed between the lower part of the vehicle and the lower rope and capable of adjusting the relative position of the lower and the lower ropes. In claim 5,
A multi-car elevator comprising a tension detection means for detecting the tension of the lower rope in the second position adjustment means. A plurality of carriages disposed in the hoistway, first and second pulleys disposed in the upper part of the hoistway, and the plurality of cars are connected to each other, and supported by the first pulley The first rope to be suspended and the plurality of cars connected with each other, and the second rope to be suspended supported by the second pulley, and the first pulley and the second pulley are shifted in the rotational axis direction A car brake which is disposed and shifted in a direction orthogonal to the rotation axis direction, attached to each of the plurality of cars, and capable of braking a fixed member fixed to the hoistway; Among the plurality of cars, the car is attached to at least one car, and is arranged between the at least one car and the first rope to adjust the relative position of the two or more cars. The first position adjusting means is mounted on at least one of the plurality of cars, and is disposed between the at least one car and the second rope so that the relative relation between the two is possible. A multi-car elevator comprising a second position adjusting means capable of adjusting the position, comprising:
When the plurality of cars arrive at the landing, the car brake applies a braking force to fix the plurality of cars to the fixing member,
After the passenger getting on and off the plurality of cars, the first position adjusting means and the second position adjusting means are operated,
A multi-car elevator characterized in that the car brake is released after completion of position adjustment by the first position adjusting means and the second position adjusting means. In claim 7,
Inclination angle detection means for detecting an inclination angle of the at least one car;
Based on the result detected by the inclination angle detecting means, the first position adjusting means and the second position adjusting means are operated to adjust the angle of the car to the at least one. Car elevator.

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