JP2005289614A - Elevator device and control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an alternative to a method of solving conventional problems by providing a means for actively rotating a passenger car, in which installation costs for a mechanism for rotating a car instead of a plurality of doors and man-hours for inspection and maintenance are increased. <P>SOLUTION: In this elevator device having an opening/closing doorway in different directions, the car being rotated is elevated up and down along a spiral car side rail 2 in a shaft. The doors installed in two directions or at a selective angle can be open/closed with one car door assembly 5, thus simplifying equipment for rotating the passenger car. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an elevator apparatus that is applied and installed in a general-use building, and particularly to an elevator apparatus that can freely install an elevator landing door when it is difficult to limit the elevator landing door to one direction due to building circumstances. .

  Conventionally, a two-way door elevator with doors in different directions has been installed when it cannot be limited to one direction due to the structure of public transportation station buildings, airport terminals, hospitals for convenience, and buildings.

  FIG. 9 is a configuration diagram illustrating a conventional two-way door elevator. The car 4 is moved up and down by the hoisting rope 3 along the car side rails (2, 2a) installed in the hoistway 1, and the car door assembly (5, 5a) is moved to an arbitrary floor (b). The door is opened and closed in conjunction with the installed hall door assemblies 6 and 6a. The governor rope 7 is coupled to the car 4 and is part of a safety device that measures the speed of the car 4.

  In the above-described two-way door elevator, on the side A of the hoistway 1, the car door assembly 5 on an arbitrary floor (A) is interlocked to open and close the door. However, in the above-described prior art, two car door assemblies 5, 5a are required, and the cost of the car door-related equipment is increased, and the time required for maintenance work to check that different car doors operate normally at different elevator floors. There is such a problem.

  Therefore, Patent Document 1 includes a rotation driving means that rotates a car according to the floor and a patent document 2 includes a rotation transmission device provided on a guide rail when the car moves up and down. The technology to rotate the cage has been released.

JP-A-8-245141 JP 2000-86125 A

  The above-mentioned technology solves the conventional problem by providing means for positively rotating the cage without providing a door that opens and closes in different directions in the cage, but the cage is rotated instead of multiple doors. It is necessary to install and check the mechanism.

  Further, there are problems that a mechanism for rotating the car to rotate the car, a countermeasure for noise generated by the motor or the rotating mechanism, and a control for weakening the shock at the start and stop of the rotation are complicated.

  In order to solve the above-described problems, an elevator apparatus according to the present invention includes a guide rail that spirally extends around the central axis of a hoistway in an elevator apparatus in which an opening / closing direction of a car differs depending on an elevator floor, and a guide A car guided by a rail is provided.

  Moreover, the elevator apparatus according to the present invention includes a lifting rope for raising and lowering the car, and a rope attaching part to which one end of the raising and lowering rope is attached, and the rope attaching part is rotatably attached around the central axis of the car. It is characterized by.

  Furthermore, in the elevator apparatus according to the present invention, a speed control rope that is installed at a fixed position of the hoistway and adjusts the lifting speed of the car, an emergency stop that is provided in the car and stops the car in an emergency, and a speed control rope, An emergency stop connection arm for connecting the emergency stop, and the emergency stop connection arm is characterized in that the emergency stop that changes its position around the center of the hoistway and the speed control rope are connected in a telescopic manner.

  Furthermore, in the elevator apparatus according to the present invention, the car has one opening / closing port.

  Furthermore, the elevator apparatus according to the present invention is an elevator apparatus in which the opening / closing direction of the car is different depending on the elevator floor, and the elevator lift position of the car guided by a guide rail that extends spirally around the central axis of the hoistway And a state detecting means for detecting the raising / lowering speed, a speed adjusting means for adjusting the raising / lowering speed of the car, and a control unit for controlling the state detecting means and the speed adjusting means. The speed of the car is adjusted by the speed adjusting means based on the information detected by the means, and the rotational operation of the car is controlled.

  Furthermore, the guide rail of the elevator apparatus according to the present invention is characterized in that the guide rail extends spirally with respect to the lift center axis between the lift floor and the lift floor.

  Furthermore, the guide rail of the elevator apparatus according to the present invention is characterized in that it goes straight on the ascending / descending floor.

  The elevator control method according to the present invention is an elevator control method in which the opening and closing direction of the car differs depending on the elevator floor, and the elevator lift position and lift of the car guided by a guide rail extending spirally around the central axis of the hoistway. A state detecting step for detecting a speed; a speed adjusting step for adjusting the ascending / descending speed of the car; and a control unit for controlling the state detecting step and the speed adjusting step, wherein the control unit is at least the state detecting step. The speed of raising / lowering the car is adjusted from the detected information in the speed adjusting step, and the rotating operation of the car is controlled.

  According to the present invention, in an elevator apparatus having opening / closing openings in different directions, one car door assembly is installed in two directions or at an arbitrary angle by raising and lowering the car while rotating it with a spiral guide rail of the hoistway. The door can be opened and closed, the equipment for rotating the car can be simplified, and the installation cost can be reduced.

  In addition, in the vicinity of each elevator floor, the straight door guide rail and the car door can be parallel and the gap can be reduced, and the equipment has been simplified to reduce costs and reduce inspection time. There is a reduction effect.

  Hereinafter, embodiments of the present invention (hereinafter referred to as embodiments) will be described with reference to the drawings.

1. Structure FIG. 1 is an overall configuration diagram showing an entire two-way door elevator according to the present invention. For the sake of explanation, each surface of the hoistway 1 is referred to as the A surface to the D surface in the clockwise direction. FIG. 1 shows a two-way door elevator in which a car door assembly 5 provided on a car 4 is changed from an A surface to a B surface when the car 4 moves up and down in the hoistway 1. Furthermore, the car-side rail 2 installed in the hoistway 1 is on the D surface of the hoistway 1 at an arbitrary floor (A: for example, the first floor), and an arbitrary hoisting floor (I) and any other hoisting floor ( B: For example, the car-side rail 2 is curved between the second floor) and is on the A surface of any other floor (b) hoistway 1. The car-side rail 2a is on the B surface of the hoistway 1 at any floor (b), and the car-side rail 2a is curved between any floor (b) and any other floor (b) The floor (b) is on the C surface of the hoistway 1.

  In each elevator floor, the car-side rails 2 and 2a are straight, and the clearance between the landing door assemblies 6 and 6a and the car door assemblies 5 and 5a is reduced. In addition, the car-side rails 2 and 2a adjust the curvature of the straight part and the curved part of each elevator floor and reduce the curvature at the beginning and end of the curved part so as to weaken the shock of the start and stop of the car. Side rails 2 and 2a are installed. Further, a plurality of position sensors and position switches (not shown) are provided on each of the lift floors and in the middle thereof, and a counterweight (not shown) is installed on the rear surface of the car door on the C surface or D surface without the door.

  The car 4 includes a pair of car door assemblies 5, a car side rail guide shoe (14, 14 a) on the side of the car 4, a speed governor rope fixing rod 11 connected to the speed governor rope 7, and an emergency stop. There are a connecting rod 13 and an emergency stop 30. Furthermore, the hoisting machine (not shown) for hoisting the hoisting rope 3 and the hoisting rope attachment plate 8 connected to the hoisting rope 3 are provided. The hoisting rope mounting plate 8 is connected to the upper surface of the car 4 with a connection fitting (not shown).

  FIG. 2 is a perspective view of the hoisting rope mounting plate 8 according to the present invention, and FIG. 3 is an enlarged view of a main part showing a car mounting state of the hoisting rope mounting plate 8 according to the present invention. In the figure, three hoisting ropes 3 are coupled to a hoisting rope mounting plate 8 by nuts 9 and 9a and supported by a hoisting rope mounting plate support 10 at the upper part of the car 4 by a ball bearing 18. Since the hoisting rope mounting plate support 10 has a ball bearing 43 so as to be rotatable with respect to the car 4, the hoisting rope is supported even when the car 4 is guided by the car side rails 2 and 2a and rotated. 3 is not twisted and stable winding is realized.

  FIG. 4 is an enlarged view of a main part of the governor rope mounting mechanism according to the first embodiment. In the figure, a governor rope 7 is coupled to one end of a rotatable governor rope fixing rod 11 and linked to an emergency stop connecting rod 13 via a support shaft 12 at the other end. Further, the emergency stop connecting rod 13 is connected to the emergency stop rod 35 by a bearing 34 and a flexible cable 33. The emergency stop 30 is a device that stops the car 4 by adding the car-side rail (2, 2a) when the hoisting rope 3 that suspends the car 4 is cut. The emergency stop 30 is installed on each of the two guide rails at the lower part of the car 4 and is interlocked by a connecting rod 36. When the speed of the elevator car becomes 1.2 to 1.4 times the rated speed, the governor Operates and grabs the governor rope 7. When the car 4 is further lowered, the emergency stop connecting rod 13 fixed to the governor rope 7 is lifted, and the shoe 31 enters the shoe guide 32 by the flexible cable 33 and the emergency stop rod 35, whereby the car side rail (2, 2a) And the car 4 is decelerated and stopped safely by the frictional force between the shoe 31 and the car-side rail (2, 2a).

  FIG. 5 shows an emergency stop connecting rod 13 that is connected to a governor rope fixing rod 11 that is connected to a governor rope 7 that is installed at a fixed position in the hoistway and is rotated by raising and lowering in the first embodiment. It is the schematic diagram which showed the locus | trajectory. Currently, when climbing from any floor (b: 1st floor) to any other lift floor (b: 2nd floor), the governor rope fixing rod 11 and the emergency stop connecting rod with the governor rope 7 as a fulcrum 13 follows the rotation of the car 4 and moves to the position of the car-side rail 2 indicated by the dotted line. At this time, the hoisting rope attachment plate support 10 rotates with respect to the hoisting rope attachment plate 8, the hoisting rope 3 is wound up without being twisted, and the governor rope 7 is not twisted as well.

  FIG. 6 is an enlarged view of the main part of the governor rope mounting mechanism according to the second embodiment. Each of the governor rope fixture 42 and the governor rope slide 44 fixed to the governor rope 7 has a bearing connected to one end of the parallel link 45, and the other end of the parallel link is the same. Are connected to bearings of an emergency stop connecting rod fixture 41 and an emergency stop connecting rod slide 43 which are fixed to the emergency stop connecting rod 13. When the car 4 rotates, the distance between the speed governor rope 7 and the emergency stop connecting rod 13 changes. In accordance with this change, each sliding portion slides and the parallel link 45 expands and contracts. The machine rope 7 and the emergency stop connecting rod 13 are suitably connected.

  FIG. 7 is an enlarged view of a main part of the car-side rail guide shoe that slides on the car-side rail in the first embodiment. In the figure, the car-side rail guide shoes (14a to 14d) are attached to the guide shoe mounting plate 15 with bearings (16a to 16d) and nuts (17a to 17d), and the guide shoe mounting plate 15 is mounted to the mounting bearing 47. It is fixed to the car 4 by a shaft 46. Further, an emergency stop 30 is disposed below the guide shoe mounting plate 15, and a connecting rod 36 connected to the emergency stop 30 on the opposite side extends from the emergency stop. In general, guidance with a guide shoe is sufficient, but if the rotation angle is 90 degrees and the distance between the lift floor and the lift floor is only a few meters, sliding noise and shock increase, so the following guide The mechanism is used.

  FIG. 8 shows a car-side rail guide shoe that slides on the car-side rail 2 according to the present invention according to the second embodiment. In the figure, a plurality of rollers (20a, 20b that are in contact with the surface of the car-side rail 2 are fixed to the roller guide shoe mounting plate 21 with mounting bolts (22a, 22b), and the roller guide shoe mounting plates (21a, 21b) are It is fixed to the car 4 by a mounting bearing 47 and a mounting shaft 46. Similarly, an emergency stop 30 is arranged at the lower part of the guide shoe mounting plate 15, and the emergency stop is connected to the emergency stop 30 on the opposite side. The connecting rod 36 is extended.By providing such a guide mechanism, the roller guide shoe preferably follows the car-side rail 2, and the car-side rail 2 moves up and down the hoistway 1 while tilting several tens of degrees. , Sliding noise and shock can be reduced.

  Furthermore, it goes without saying that the degree of freedom in the direction of installation of the landing doors is increased by changing the twisting direction of the spiral car side rail for each elevator floor.

2. Operation Hereinafter, the operation of the elevator in the first embodiment will be described.

  First, in FIG. 1, when the car 4 is stopped on an arbitrary floor (A: for example, the first floor), a position detection switch (not shown) detects the car door assembly 5 and a command from a control device (not shown). The landing door assembly 6 interlocks to open and close the door on the hoistway A surface.

  Next, when the car 4 moves in the ascending direction and comes off the door-openable belt (car door assembly 5, landing door assembly 6), a position detection sensor (not shown) is detected, and the car is arranged in a spiral around the center of the hoistway in advance. Guided by the side rails, the car side rail guide shoes (14a to 14d) slide along the car side rails (2, 2a), and the car 4 moves to the ascending direction while rotating clockwise. At this time, the signals of the position detection sensors attached to the hoistway and the car ascending / descending speed signal from the speed governor are input to a control device (not shown) to suppress shocks at the start and end of the car rotation, The elevator speed is adjusted so that it is comfortable to ride, and the rotation speed of the car is controlled, and “in rotation” is displayed on the display inside the car. At this time, the car 4 is rotated by the hoisting rope attachment plate 8 and the hoisting rope attachment plate support 10 of FIGS. 2 and 3, but the hoisting rope 3 is not twisted.

  Further, the governor rope fixing rod 11 moves with the support shaft 12 of FIG. 4 as a fulcrum, and the governor rope 7 is always connected to the hoistway by connecting the governor fixed rope holding portion and the car 4 with a link structure. It is in the same position and is always connected to the emergency stop of the car even if the car 4 rotates. With such a mechanism, the car smoothly continues to rotate in the upward direction.

  The curvature of the spiral car side rails (2, 2a) gradually decreases in front of the openable belt (car door assembly 5, landing door assembly 6a) on any other floor (b: second floor, for example) When the position sensor detects that 4 is approaching the landing door assembly 6a and enters the door openable belt, the position detection switch detects and the car door assembly 5 and the landing door assembly 6a become parallel. After the stop, the car door assembly 5 and the landing door assembly 6a work together to open and close the door on the hoistway B surface. Similarly, the descending direction operates.

  In order to simplify the description in the present embodiment, for example, a two-story hoistway is shown. However, the hoisting floor may be any number of floors, and the rotation direction is clockwise or counterclockwise with respect to the hoisting floor. Needless to say.

3. As described above, according to the embodiment of the two-way door elevator of the present invention, the car door assembly 5 may be one place, the rotating means for rotating the car 4 can be simplified, and the inspection time can be greatly reduced. It is possible to reduce the cost of equipment and maintenance for installation.

  Furthermore, the car can be rotated up to 120 degrees due to the limit of operation of the governor rope fixing rod 11, and if it is within the maximum rotation angle, the elevator floor can be bent to an arbitrary angle and the landing door can be installed. Become. Furthermore, it goes without saying that a larger rotation angle can be obtained by improving the mechanism of the governor rope fixing rod 11. Furthermore, by controlling the rotation speed of the car 4 by adjusting the raising / lowering speed of the car, a two-way door elevator with a comfortable ride is obtained.

It is a whole lineblock diagram showing the whole two-way door elevator concerning the present invention. It is a perspective view of the hoisting rope attachment plate concerning the present invention. It is a principal part enlarged view which shows the cage attachment state of the hoisting rope attachment plate which concerns on this invention. It is an attachment principal part enlarged view in the governor rope attachment mechanism in 1st Embodiment. The schematic diagram which showed the locus | trajectory of the emergency stop connecting rod connected with the governor rope fixed rod connected to the governor rope installed in the fixed position of the hoistway and the cage rotated by raising / lowering in 1st Embodiment. It is. It is an attachment principal part enlarged view in the governor rope attachment mechanism in 2nd Embodiment. It is a principal part enlarged view of the car side rail guide shoe which slides on the car side rail in 1st Embodiment. The car side rail guide shoe which slides on the car side rail which concerns on this invention by 2nd Embodiment is shown. It is a block diagram which shows the conventional two-way door elevator.

Explanation of symbols

  1 hoistway, 2, 2a car side rail, 3 hoisting rope, 4 car, 5, 5a car door assembly, 6, 6a landing door assembly, 7 governor rope, 8 hoisting rope mounting plate, 9, 9a nut 10, hoisting rope mounting plate support, 11 governor rope fixing rod, 12 support shaft, 13 emergency stop connecting rod, 14 car side rail guide shoe, 15 guide shoe mounting plate, 16 bearing, 17 nut, 18 ball bearing, 21 Roller guide shoe mounting plate, 22 mounting bolt, 31 shoe, 32 shoe guide, 33 flexible cable, 35 emergency stop rod, 36 connecting rod, 41 emergency stop connecting rod fixture, 42 speed governor rope fixture, 43 emergency stop Connecting rod sliding tool, 44 governor rope sliding tool, 45 parallel link, 46 mounting shaft, 47 mounting bearing.

Claims (8)

In elevator systems where the car opening and closing direction varies depending on the floor,
A guide rail extending spirally around the central axis of the hoistway;
Whether guided by the guide rail,
An elevator apparatus comprising: The elevator apparatus according to claim 1,
Lifting rope to raise and lower the car,
A rope attachment portion to which one end of the lifting rope is attached;
With
The rope mounting part
An elevator apparatus that is rotatably mounted around a central axis of a car. The elevator apparatus according to claim 1 or 2,
A speed control rope that is installed at a fixed position on the hoistway and adjusts the lifting speed of the car,
An emergency stop provided in the car to stop the car in an emergency,
An emergency stop connecting arm that connects the speed control rope and the emergency stop;
With
The emergency stop connecting arm is an elevator apparatus characterized in that an emergency stop that changes its position around the center of a hoistway and a speed control rope are connected in a telescopic manner. In the elevator apparatus of any one of Claim 1 to 3,
The basket
An elevator apparatus having one opening / closing port. The elevator apparatus according to any one of claims 1 to 4,
Furthermore, a state detecting means for detecting the raising and lowering speed and the raising and lowering speed of the car guided by the guide rail extending spirally around the central axis of the hoistway,
Speed adjusting means for adjusting the raising / lowering speed of the car;
A control unit for controlling the state detection means and the speed adjustment means;
With
The control device adjusts the ascending / descending speed of the car with the speed adjusting means based on at least the information detected by the state detecting means, and controls the rotating operation of the car. In the guide rail of the elevator apparatus of any one of Claim 1 to 5,
A guide rail for an elevator apparatus, wherein the guide rail extends in a spiral shape with respect to an elevating central axis between the elevating floor and the elevating floor. In the guide rail of the elevator apparatus of any one of Claim 1 to 5,
A guide rail for an elevator apparatus, which travels straight up and down. In the elevator apparatus control method in which the opening and closing direction of the car differs depending on the elevator floor,
A state detection step of detecting the lifting position and the lifting speed of the cage guided by the guide rail extending spirally around the central axis of the hoistway;
A speed adjustment process for adjusting the lifting speed of the car;
A control unit for controlling the state detection step and the speed adjustment step;
With
The control part adjusts the raising / lowering speed of a car at the said speed adjustment process from the information detected at the said state detection process at least, The control method of the elevator apparatus characterized by the above-mentioned.

Images