WO2018142556A1

WO2018142556A1 - Multi-car elevator

Info

Publication number: WO2018142556A1
Application number: PCT/JP2017/003885
Authority: WO
Inventors: 美礼堂薗
Original assignee: 株式会社日立製作所
Priority date: 2017-02-03
Filing date: 2017-02-03
Publication date: 2018-08-09

Abstract

In order to provide a multi-car elevator capable of moving in any direction between an upward passage and a downward passage at a midway floor, the present invention is a multi-car elevator provided with a rail including at least a bent portion disposed in a travel path, an elevator car for moving in a height direction along the rail, and a drive device for driving the elevator car, wherein the multi-car elevator is characterized in that the drive device is provided with: a pair of wheels for holding the rail therebetween so that rotary shafts thereof are substantially parallel to each other, the wheels being disposed on both sides of the rails; a power machine for rotating at least one of the pair of wheels; and a rotation support part for supporting rotation of the pair of wheels, the rotation support part being positioned at the center of the rotary shafts, and the rotary support part rotating about a support shaft parallel to the rotary shafts.

Description

Multi car elevator

The present invention relates to a multicar elevator.

Elevators have been put into practical use as a system for transporting people vertically in high-rise buildings. However, in an elevator that has been put to practical use, a passenger car is connected to a rope or the like and cannot move in a direction orthogonal to the laying direction of the rope or the like, such as moving horizontally on an arbitrary floor. For such a problem, for example, Patent Document 1 discloses an elevator in which a driving device is attached to a rail arranged along a traveling path of a car and the car is suspended by the driving device.

Patent Document 1 discloses a structure in which a drive gear fixed on the same axis as a drive gear meshing with one surface of a rail is fixed to a car (cargo). In this structure, the drive unit is positioned below the rail on the upper side (uppermost floor) of the racetrack-shaped rail, whereas the drive unit is positioned above the rail on the lower side (lowermost floor) of the rail. In other words, the car on which the driving machine is fixed and the floor on which passengers in the car get on have different relative positions with respect to the rails on the uppermost floor and the lowermost floor.

JP-A-5-139659

In the structure shown in Patent Document 1, if the rail is provided with a distribution device and the intermediate floor can be moved between the upward passage and the downward passage, a car enters the intermediate floor from the lowest floor side. The height of the car on the intermediate floor and the interior floor are different depending on when the vehicle is to enter from the top floor side.

Therefore, in the structure of Patent Document 1, for example, only the lowest floor needs to enter from the down passage and advance to the up passage, and all other floors must enter from the up passage and enter the down passage. In other words, when moving from a certain intermediate floor to a higher floor, it is necessary to go through the lowest floor, which increases the passenger boarding time and may reduce the transportation efficiency of people throughout the building. there were.

In view of the above circumstances, an object of the present invention is to provide a passenger transport system in which a driving device is attached to a rail arranged along a traveling path, and a car is driven by this driving device. It is to provide a passenger transportation system that can move in any direction.

In order to achieve the above object, the present invention includes a rail including at least a bent portion disposed on a traveling path, a car that moves in the height direction along the rail, and a drive device that drives the car. The drive device is disposed on both sides of the rail, and rotates at least one of the pair of wheels and the pair of wheels sandwiching the rail so that the rotation shafts are substantially parallel to each other. Provided is a multicar elevator comprising: a power machine; and a rotation support unit that rotates and supports a pair of wheels, and is positioned at the center of the rotation shaft and rotates about a support shaft parallel to the rotation shaft.

In the passenger transport system of the present invention, since the support shaft is located at the center of the rail in the thickness direction, the relative position in the height direction of the rail and the car is always constant in the horizontal passage, and the up passage and the down passage on all floors. You can move in any direction.

It is a figure explaining the drive device of the passenger transportation system concerning the present invention. It is a figure explaining the passenger car of the passenger transportation system concerning the present invention. It is a figure explaining the travel path and rail of a passenger transportation system concerning the present invention.

Hereinafter, an embodiment of a passenger transportation system according to the present invention will be described with reference to the drawings. However, the present invention is not limited to the embodiment taken up here, and can be appropriately combined and improved without departing from the scope of the invention.

FIG. 1 is a diagram illustrating a driving device for a passenger transportation system according to the present invention. A pair of

wheels

2 and 3 having rotating shafts 4 and 5 that are substantially parallel to each other are disposed so as to sandwich the rail 11, and the wheel 2 travels on the rail 11 by applying a torque T to at least one of these wheels. Drive along the surface. A rail clamping pressure F, which is a load that sandwiches the rail 11, is applied between the pair of

wheels

2 and 3 by a biasing means (not shown). A friction force can be generated between the rail 11 and the wheel by the rail clamping pressure, and the torque T of the wheel 2 is transmitted to the rail 11 by this friction force. Here, the rail clamping pressure also has an effect of bringing the rotating shafts 4 and 5 of these wheels closer to each other. Specifically, in FIG. 1, which is a projection onto a plane orthogonal to these rotation axes 4, the line segment 8 is the rail running surface so that the length of the line segment 8 connecting these rotation axes is minimized. Orthogonal to Further, assuming that the amount of deformation of these wheels with respect to the rail clamping pressure is the same, the midpoint of this line segment 8 is positioned at the center of the running surface of the rail 11.

Rotating shafts 4 and 5 of the pair of wheels are supported so as to be rotatable about the shaft with respect to the rotation support portion 6. The power machine 10 that applies torque T to the wheels 2 is fixed to the rotation support 6. And the rotation support part 6 has the support shaft 7 of the center of a rotating shaft of a pair of wheel, and the direction parallel to these rotating shafts. The car is supported by the rotation support 6 so as to be rotatable around the support shaft 7. Therefore, in the driving device for a passenger transportation system of the present invention, the support shaft 7 moves along the center of the rail running surface. And even if a rail is a curve, not only the support shaft 7 moves along this curve by the effect | action of the clamping pressure F, but the direction of the rotation support part 6 rotates in a driven manner.

In addition, the rotation support part 6 is not limited to a circular shape, and may be, for example, a quadrilateral shape as long as it can rotate around the support shaft 7.

FIG. 2 is a view for explaining a passenger car of the passenger transportation system according to the present invention. One driving car 9 is provided with four driving devices. The first drive device 1a is illustrated above the midpoint of the first side that forms the ceiling of the car, which is a substantially rectangular parallelepiped, with an interval that prevents the car 9 and the first drive device 1a from interfering with each other. The support shaft 7a not to be disposed is arranged. The support shaft 7b of the second drive device 1b is disposed above the midpoint of the opposite side of the first side of the ceiling and coaxially with the support shaft 7a of the first drive device (not shown). The support shaft 7c (not shown) of the third drive device 1c is disposed below the first drive device 1a, and is disposed at a distance such that the car 9 and the drive device 1c do not interfere with each other. That is, the support shaft 7c of the third driving device (not shown) is disposed below the midpoint of the third side, which is the opposite side of the side surface including the first side. The support shaft 7d (not shown) of the fourth drive device 1d is below the midpoint of the opposite side of the third side of the floor of the car 9, and coaxially with the support shaft 7c of the third drive device (not shown). Has been placed.

FIG. 3 is a diagram for explaining the traveling path and rails that the above-mentioned car operates. FIG. 3 is a projection onto a vertical plane orthogonal to the support shaft 7, and only the rail on the side where the first driving device 1a and the third driving device 1c are arranged is shown. The rail on the opposite side in the overlapping positional relationship is omitted.

The traveling path is composed of a horizontal passage 61, an ascending passage 62, and a descending passage 63, each of which has a substantially rectangular parallelepiped shape. The plurality of horizontal passages 61 have substantially the same shape on the horizontal projection plane, and are arranged at arbitrary intervals in the vertical direction. The ascending passage 62 is a passage connecting one end of one horizontal passage 61 and one end of the horizontal passage 61 disposed on the same side of the one upward passage. A downward passage 63 connects the other ends of the horizontal passages 61. In the example of FIG. 3, it is composed of four horizontal passages 61, four upward passages 62, and four downward passages 63. One of the vertical walls of each passage is arranged on a first vertical plane that is a virtual plane, and the wall that faces this wall of each passage is the second vertical plane that is a virtual plane. Is placed on top. In all the ascending passages 62, the first ascending rail 41 is provided in the approximate center of the wall surface on the first vertical plane along the longitudinal direction thereof. In all the down passages 63, the first down rail 51 is provided in the approximate center of the wall surface on the first vertical plane along the longitudinal direction. In all the horizontal passages 61, along the longitudinal direction, the first upper rail 11 is provided near the upper side of the wall surface on the first vertical plane, and the first lower rail 13 is provided near the lower side of the wall surface.

In the horizontal passage 61 located second from the bottom in FIG. 3, the first up rail 41 on the lower floor side and the first up rail 41 on the upper floor side are directly connected to the end of the horizontal passage 61 on the up passage 62 side. A first up straight rail 21 is provided. A first down straight rail 31 that can directly connect the first down rail 51 on the upper floor side and the first down rail 51 on the lower floor side is provided at the opposite end of the down passage 63.

In the horizontal passage 61 located third from the bottom, a part of the first upward straight rail 21 is switched to the first upper upward pull-in rail 22 and the first lower upward pull-in rail 23 at the end of the upward passage 62. The car 9 has entered the horizontal passage from the lower floor. The first upper upward pull-in rail 22 connects the middle part of the first upward straight rail 21 and the first upper rail 11. The first lower upward pull-in rail 23 connects the first upward rail 41 on the lower floor side and the first lower rail 13.

A part of the first downward straight rail 31 is switched to the first upper downward pull-in rail 32 and the first lower downward pull-in rail 33 at the end of the horizontal passage 61 located from the bottom to the downward passage 63 side. The car 9 has entered the horizontal passage from the upper floor. The first upper down pull-in rail 32 connects the first down rail 51 on the lower floor side and the first upper rail 11. The first lower down pull-in rail 33 connects the middle part of the first down straight rail 31 and the first lower rail 13.

In the horizontal passage 61 located fourth from the bottom, a part of the first up straight rail 21 is switched to the first upper up departure rail 24 and the first lower up departure rail 25 at the end of the up passage 62. ing. The first upper ascending departure rail 24 connects the first ascending rail 41 on the upper floor side and the first upper rail 11. The first lower ascending departure rail 25 connects the middle part of the first ascending straight rail 21 and the first lower rail 13.

A part of the first downward straight rail 31 is switched to the first upper downward departure rail 34 and the first lower downward departure rail 35 at the end of the horizontal passage 61 located at the fourth from the bottom. . The first upper descending departure rail 34 connects the middle portion of the first descending straight rail 31 and the first upper rail 11. The first lower down departure rail 35 connects the first down rail 51 on the lower floor side and the first lower rail 13.

These pull-in

rails

22, 23, 32, 33 and departure rails 24, 25, 34, 35 depend on the direction of travel of the car 9 and the first up straight connection rail 21 or the It is appropriately switched to a part of the one descending straight connection rail 31.

In an arbitrary horizontal passage 61, the first driving device 1a of the car is installed so as to sandwich the first upper rail 11, the second driving device 1b is installed so as to sandwich the second upper rail 12, and the third The drive device 1c is installed so as to sandwich the first lower rail 13, and the fourth drive device 1d is installed so as to sandwich the second lower rail 14. When the car 9 moves to the ascending passage 62, the first driving device 1a and the third driving device 1c sandwich the first ascending rail 41, and the second driving device 1b and the fourth driving device. 1d comes to sandwich a second uprail 42 (not shown). When the car 9 moves to the down passage 63, the first driving device 1a and the third driving device 1c sandwich the first down rail 51, and the second driving device 1b and the fourth driving device 1d A second downward rail 52 (not shown) is sandwiched.

Here, the second up rail 42 and the second down rail 52 are respectively arranged at positions overlapping the first up rail 41 and the first down rail 51 in FIG. The second up rail 42 and the second down rail 52 are both arranged on the same vertical plane as the second upper rail 12 and the like.

Because of the configuration of the driving device and rail as described above, even if the car 9 moves in the horizontal passage 61 in any direction and moves to another horizontal passage via the up passage 62 and the down passage 63, Each support shaft 7 is located at the center of the rail running surface. Therefore, in the horizontal passage 61, the vertical position of the floor in the car is always limited to a specific height. That is, in the passenger transportation system of the present invention, free movement between arbitrary floors, which is impossible with a conventional drive device, is realized.

In the above description, the torque T applied to the wheel 2 is transmitted to the rail by the frictional force based on the rail clamping pressure. However, it is also possible to form a tooth profile on the rail surface, use the wheel as a pinion, and transmit the wheel torque to the rail by meshing them. In this case, the rail clamping pressure may be as large as the pinion does not leave the rail.

1: Driving device 2, 3: Wheel 7: Support shaft 9: Car

Claims

A rail including at least a bent portion disposed on the traveling path and a ride moving in the height direction along the rail;
A multi-car elevator comprising a driving device for driving the car,
The driving device includes:
A pair of wheels that are arranged on both sides of the rail and sandwich the rail so that their rotation axes are substantially parallel;
A power machine that rotates at least one of the pair of wheels;
A multi-car elevator comprising: a rotation support portion that rotatably supports the pair of wheels, and that is positioned at the center of the rotation shaft and that rotates about a support shaft parallel to the rotation shaft.
The multi-car elevator according to claim 1,
The car has a substantially rectangular parallelepiped shape,
Four driving devices are provided,
The support shafts of the four drive devices are parallel to each other and exist in the same vertical plane,
Each of the first and second drive devices has the support shafts arranged coaxially and is provided above the car,
Each of the third and fourth drive devices has the support shafts arranged coaxially and is provided below the car.
A multi-car elevator according to any one of claims 1 and 2,
The multi-car elevator, wherein the rotation support portion is provided with a biasing means for generating a load for the pair of wheels to sandwich the rail.
The multi-car elevator according to claim 3,
The multi-car elevator according to claim 1, wherein the rotation support section follows the bending of the rail in accordance with a load that the pair of wheels sandwich the rail.
The multi-car elevator according to claim 3,
The portion of the rail where the wheel contacts is substantially smooth,
The wheel is made of rubber at least on the surface,
A multi-car elevator characterized by a substantially cylindrical shape.
The multi-car elevator according to claim 3,
The portion of the rail where the wheel travels has a tooth profile,
The multi-car elevator, wherein the wheel is a pinion.