JP2006089260A - Elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent vibration and lateral swing, or the like of a car in running from occurring by vertically installing a guide rail in a hoistway without causing bending deformation. <P>SOLUTION: This elevator comprises the car 1, a car frame 2 installed on the outer periphery of the car 1, a detection means detecting a horizontal distance between the car 1 and landings on floors facing the door of the car beforehand, a car moving means moving the car 1 to the landing side or the anti-landing side, and a control means storing detection data detected by the detection means beforehand and, based on the detection data, operating the car moving means so that the horizontal distance between the car 1 and the landing of the target floor comes into a reference value before the car 1 in running reaches the landing of the target floor. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an elevator in which a horizontal distance between a landing and a cab is made constant.

Due to errors in construction accuracy and the like, the opening center point of the elevator hoistway corresponding to each floor hall does not necessarily match when viewed from above and below.
Therefore, the elevator cab is moved up and down in the hoistway while being guided by two guide rails attached to the wall of the hoistway. In such a case, the elevator cab is located between the landing and the cab. In order to keep the horizontal distance within the reference value, the guide rail was bent and deformed for adjustment.
There is also known an elevator in which when a passenger gets in and out of a car room, the car room abuts the landing and no gap is generated between the car room and the landing (see Patent Document 1).

JP-A-8-113450

In the conventional elevator, since the guide rail is bent and deformed, the cage that moves up and down while being guided by the guide rail has a problem in that vibration, roll and the like occur.
In addition, if the building is heavily distorted or shrunk due to long-term use or an earthquake, the guide rail bending deformation method can adjust the horizontal distance between the landing and the cab to within the reference value. There was also a problem that it was difficult.
In addition, in the case of an elevator that does not cause a gap between the cab and the hall, the cab will move horizontally after the cab has arrived on the destination floor, and passengers will then be able to get on and off. Therefore, there was a problem that it took time for passengers to get on and off.

An object of the present invention is to solve the above-described problems, and even when the opening center point of the elevator hoistway corresponding to each floor landing does not necessarily match when viewed from above and below. An object of the present invention is to provide an elevator that can be vertically installed in a hoistway without bending and deforming a guide rail, and that can prevent the occurrence of vibration, roll, and the like of a cab during traveling.
It is another object of the present invention to provide an elevator that can adjust the horizontal distance between a landing and a cab within a reference value even when a large distortion, shrinkage, or the like occurs in a building.

  The elevator according to the present invention detects in advance a horizontal distance between a car room having a car door, a car frame provided on the outer periphery of the car room, and the car room and a landing on each floor facing the car door. Detecting means for moving, the car room moving means for moving the car room to the landing side or the counter landing side, and the detection data of the detecting means detected in advance are stored, and based on the detection data, the car that is running Control means for operating the cab moving means so that the horizontal distance between the car room and the landing on the destination floor is within a reference value before the room arrives at the landing on the destination floor.

According to the elevator according to the present invention, the guide rail can be vertically installed in the hoistway without bending the guide rail, and the car can be prevented from vibrating, rolling, etc. during traveling.
Further, even when a large distortion or shrinkage occurs in the building, the horizontal distance between the landing and the cab can be easily adjusted within the reference value.

Hereinafter, embodiments of the present invention will be described, but the same or equivalent members and parts will be described with the same reference numerals.
Embodiment 1 FIG.
1 is a side sectional view showing an elevator according to Embodiment 1 of the present invention, FIG. 2 is a front sectional view showing the elevator of FIG. 1, and FIG. 3 is a reflecting plate 17 and a photodetector at landings 18a, 18b, 18c on each floor. FIG. 4 is a partial view when the inside of the elevator hoistway is viewed from the direction of arrow A in FIG.
In this elevator, a horizontal space between a car room 1 having a car door, a car frame 2 provided on the outer periphery of the car room 1, and the halls 18a, 18b, and 18c on each floor facing the car door. The detection means for detecting the distance in advance, the car room moving means for moving the car room 1 to the landing side or the counter landing side, and the detection data of the detection means detected in advance are stored, and the vehicle is traveling based on the detection data. Before the car room 1 arrives at the landings 18a, 18b, 18c on the destination floor, the car room moving means is set so that the horizontal distance between the car room 1 and the landings 18a, 18b, 18c on the destination floor is within the reference value. And control means for actuating.

  The car frame 2 includes an upper frame 4 to which an end portion of the main rope 3 is connected, a vertical frame 5 provided on both sides of the car room 1, and a flat plate-like lower frame 6. Between the vertical frames 5 and the lower frame 6, tension bars 7 are provided on the landing side and the counter landing side, respectively. The tension bar 7 is used to reinforce the weld joint between the lower frame 6 and the vertical frame 5.

  The car room moving means has a flat car room moving floor 9 provided with a vibration isolating rubber 10 for preventing vibration of the car room 1 on the upper surface, and a hall that supports the car room moving floor 9 in a rollable manner. Side first moving roller 11 and anti- landing side second moving roller 12, and the first moving roller 11 and the second moving roller directly connected to the first moving roller 11 and the second moving roller 12. 12, a driving motor (not shown) that applies a rotational force, an auxiliary roller 13 that is rotatably contacted with each of the both side end surfaces of the cab moving floor 9, and a landing side and a counter landing side of the lower frame 6 A first stopper 14 and a second stopper 15 are provided that are fixed to the respective intermediate portions and restrict the movement of the car room moving floor 9.

The detection means is provided at a predetermined distance D from the wall of the hoistway for each photodetector 18a, 18b, 18c on each floor as shown in FIG. 3 and the photodetector 16 extending from the car room 1 to the landing side. A reflection plate 17 facing the photodetector 16 is provided.
The photodetector 16 has a light emitting unit and a light receiving unit that receives light emitted from the light emitting unit and reflected by the reflecting plate 17.
The reflecting plate 17 has a plurality of white lines 19 a, 19 b, 19 c, 19 d, and 19 e that are equally spaced in the vertical direction and extend in a stepwise horizontal direction on a flat plate colored black.

Next, the operation of the elevator configured as described above will be described with reference to FIG.
First, the car room 1 in the hall 18a on the lowest floor is moved to the center point of the lower frame 6 by driving the drive motor (see FIG. 1).
Thereafter, the hoisting machine (not shown) is driven to drive the car room 1 to the top floor landing 18c via the main rope 3. During the ascending operation of the cab 1, the light emitted from the light emitting part of the photodetector 16 is reflected by the reflecting plate 17 at the landings 18a, 18b, 18c on each floor, and the light receiving part receives the reflected light.
When the light detector 16 passes through the reflector 17 of the landing 18a on the lowest floor, it passes through the three white lines 19a, 19b, 19c, and the light receiving unit receives the light signal of three pulses. When passing through the reflecting plate 17 of the hall 18b on the intermediate floor, it passes through the two white lines 19a and 19b, and the light receiving unit receives two pulses of optical signals. When passing through the reflector 17 of the hall 18c on the top floor, the light receiving unit receives four pulses of optical signals through the four white lines 19a, 19b, 19c, and 19d.
In this way, the photodetector 16 receives the optical signal of each pulse number at the landings 18a, 18b, 18c on each floor, but these data are sent to the control means and stored there.

Thus, after the horizontal distance between the car room 1 and the landings 18a, 18b, 18c on each floor is stored in the control means, the elevator is automatically operated normally.
In normal operation, before the car room 1 stops at the landings 18a, 18b, 18c on the destination floor, the data previously measured and stored in the control means (the floors 18a, 18b, 18c on each floor and the car room 1) Based on the horizontal distance), the drive motor of the car room moving means is operated, and the car room 1 moves to the landing side or the counter landing side.
For example, in the hall 18a on the lowest floor, the distance between the axis E where the center axis of the car frame 2 and the center axis of the car room 1 coincide with the inner wall surface of the hall 18a on the lowest floor is the reference dimension A (3 In the intermediate floor hall 18b, the distance between the axis E and the inner wall surface of the intermediate floor hall 18b is a dimension B corresponding to two pulses, and the car room 1 becomes the intermediate floor hall 18b. Before stopping, the car room 1 is moved back to the counter landing side by the operation of the drive motor to the counter landing side by the dimension (A-B).
FIG. 5 is a view showing a state in which the car room 1 is retracted with respect to the lower frame 6.

In the hall 18c on the top floor, the distance between the axis E and the inner wall surface of the hall 18c on the top floor is a dimension C corresponding to 4 pulses, and before the car room 1 stops at the hall 18c on the top floor, The car room 1 is moved forward by the operation of the drive motor to the landing side by the dimension of C-A).
FIG. 6 is a view showing a state when the car room 1 is moved forward with respect to the lower frame 6.

In the normal operation, as described above, even when the distance between the inner wall surface of each floor landing 18a, 18b, and 18c and the axis E is different, the light detector 16 is moved by the operation of the drive motor. The distance data based on the optical signal of 3 pulses is always sent to the control means while the car room 1 is traveling.
On the other hand, for example, when the distance between the inner wall surface of the hall 18c on the top floor and the axis E changes due to distortion of the building in which the elevator is incorporated, the photodetector 16 corresponds to the hall 18c on the top floor. It is impossible to pass through the central axis of the reflecting plate 17, and an optical signal having a pulse number different from three pulses is sent to the control means.
The control means recognizes the abnormality, stores this abnormality data, and an alarm means (not shown) automatically issues an alarm in response to a command from the control means.

As described above, according to the elevator according to the first embodiment, the car room 1, the car frame 2 provided on the outer periphery of the car room, the hall 18a on each floor facing the car door and the car door, The detection means for detecting the horizontal distance between 18b and 18c in advance, the car room moving means for moving the car room 1 to the landing side or the counter landing side, and the detection data of the detection means detected in advance are stored, Based on the detected data, the horizontal distance between the cab 1 and the destination floor landings 18a, 18b, 18c is within the reference value before the traveling cab 1 arrives at the destination landings 18a, 18b, 18c. Control means for operating the cab moving means so that the opening center point of the elevator hoistway corresponding to each floor landing 18a, 18b, 18c is not always coincident when viewed from above and below Also, without deforming bending guide rail, mounting can and become vertically hoistway, the vibration of the cab 1, the occurrence of rolling can be prevented during traveling.
Moreover, even when a large distortion, shrinkage, or the like occurs in the building, the horizontal distance between the landings 18a, 18b, 18c and the car room 1 can be easily adjusted within the reference value.

  The detection means is provided with a photodetector 16 extending from the car room 1 to the landings 18a, 18b, 18c, and from the halls 18a, 18b, 18c on the respective floors to the car room 1 side with the same dimensions. The light detector 16 includes a light emitting portion and a light receiving portion that receives light emitted from the light emitting portion and reflected by the reflective plate. On the flat plate colored in black, a plurality of white lines 19a, 19b, 19c, 19d are written at equal intervals in the vertical direction and extending in the horizontal direction in a stepped manner, so that they face the car room 1 and the car door The horizontal distance between the floors 18a, 18b and 18c on each floor can be easily and reliably detected in advance.

  Further, the car room moving means is a flat car room moving floor 9 that supports the car room 1 and a platform-side moving floor 9 that is provided on the lower frame 6 of the car frame 2 and supports the car room moving floor 9 so that it can roll. The first moving roller 11 and the second moving roller 12 on the opposite side of the landing, and the first moving roller 11 and the second moving roller 12 connected to the first moving roller 11 and the second moving roller 12 rotate. Since the drive motor for applying the force is provided, the car room moving floor 9, that is, the car room 1 can be moved with a simple configuration.

  In addition, since the lower frame 6 is provided with auxiliary rollers 13 which are in contact with both side end surfaces of the cab moving floor 9 in pairs so as to be rotatable, the auxiliary roller 13 causes the cab moving floor 9 to be on the landing side. The movement in the horizontal direction perpendicular to the opposite landing side is restricted.

  In addition, the first stopper 14 and the second stopper 15 that restrict the movement of the car room moving floor 9 are provided on the landing side and the counter landing side of the lower frame 6 respectively. 14 and the second stopper 15 prevent the car room moving floor 9 from excessively moving forward and backward.

  Further, since the vibration isolating rubber 10 for preventing the vibration of the car room 1 is provided between the car room moving floor 9 and the car room 1, the vibration of the car room 1 during traveling is further suppressed.

  In addition, when the passengers get in and out of the cab, the cab 1 is in contact with the landing and the cab 1 that is running is compared to an elevator that does not create a gap between the cab and the landing. The horizontal distance between the cab 1 and the destination floor landings 18a, 18b, 18c is within the standard value before arriving at the destination floor landings 18a, 18b, 18c. Time is also shortened.

  In the above embodiment, optical detection means is used as detection means for detecting in advance the horizontal distance between the car room 1 and the landings 18a, 18b, 18c on each floor facing the car door. Of course, the present invention is not limited to this, and an infrared method, an ultrasonic method, a laser method, an electromagnetic wave method, or the like may be used.

It is a sectional side view which shows the elevator of Embodiment 1 of this invention. It is a front sectional view showing the elevator of FIG. In the elevator of FIG. 1, it is explanatory drawing which shows the relationship between the photon detection board and reflection board in the landing of each floor. FIG. 4 is a partial view when the elevator of FIG. 3 is viewed from an arrow A. It is a sectional side view which shows the usage condition of the elevator of FIG. It is a sectional side view which shows the other usage condition of the elevator of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Car room, 2 Car frame, 6 Lower frame, 9 Car room moving floor, 10 Anti-vibration rubber, 11 1st moving roller, 12 2nd moving roller, 13 Auxiliary roller, 14 1st stopper, 15 2nd Stopper, 16 light detector, 17 reflector, 18a, 18b, 18c landing, 19a, 19b, 19c, 19d, 19e white line.

Claims (6)

A car room with a car door;
A car frame provided on the outer periphery of the car room;
Detecting means for detecting in advance a horizontal distance between the car room and a landing on each floor facing the car door;
A car room moving means for moving the car room to the landing side or the counter landing side;
The detection data of the detection means detected in advance is stored, and on the basis of the detection data, the cab running and the landing on the destination floor before the cab arrives at the landing on the destination floor. And an elevator provided with control means for operating the cab moving means so that the horizontal distance is within a reference value. The detection means includes a photodetector that extends from the car room to the landing side, and a reflector that is provided at the same size away from the landing on each floor on the car room side and faces the light detector. ,
The photodetector has a light emitting part and a light receiving part that receives light emitted from the light emitting part and reflected by the reflecting plate,
2. The elevator according to claim 1, wherein the reflecting plate is written on a flat plate colored in black with a plurality of white lines extending in the horizontal direction at equal intervals in the vertical direction and stepwise.   The car room moving means includes a flat car room moving floor that supports the car room, and a first on the landing side that is provided on a lower frame of the car frame and supports the car room moving floor so that it can roll. Driving roller and the second moving roller on the opposite side of the landing, the first moving roller, the first moving roller connected to the second moving roller, and a driving motor for applying a rotational force to the second moving roller The elevator of Claim 1 or Claim 2 provided with these.   The elevator according to claim 3, wherein the lower frame is provided with auxiliary rollers that are rotatably contacted to both end surfaces of the cab moving floor.   5. The first stopper and the second stopper for restricting movement of the cab moving floor are respectively provided on the landing side and the counter landing side of the lower frame. elevator.   The elevator according to any one of claims 3 to 5, wherein a vibration isolating rubber for preventing vibration of the cab is provided between the cab moving floor and the cab.

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