JP2003128363A - Main rope regulating device of elevator for connecting bridge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator for a connecting bridge, in which two units of cars are connected to a single main rope, capable of regulating a step gap of a car floor and a platform floor due to elongation of the main rope. SOLUTION: A car 10 of a first elevator 4 and a car 11 of a second elevator 5 are connected to the single main rope 18 and they respectively elevate between a lower platform 14 and an upper platform 15 and a lower platform 16 and an upper platform 17. A main rope regulator 23 is provided on a part of the main rope 18. The main rope regulator 23 is made of a detour part of the main rope 18, and when the step gap is made between the platform 16 and the platform 17 due to elongation of the main rope 18 because of a secular change, etc., the main rope regulator 23 regulates length of the alternate part of the main rope 18 and corrects the step gap by changing apparent length of the main rope 18.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for adjusting the main ropes of an elevator provided for an elevated connecting bridge such as an overpass or a pedestrian crossing in a station yard.

[0002]

2. Description of the Related Art FIG. 6 is an overall perspective view showing a conventional elevator for a connecting bridge, which is a first platform consisting of a ticket gate side platform.
A first elevator 4 is erected at point 1, a second elevator 5 is erected at a second point 2 consisting of an island-side platform across the track 3, and both elevators 4 and 5 are connected by an elevated connecting bridge 8. ing. And both elevators 4,
The five cars 10 and 11 are connected to both ends of a single main rope 18, and the main rope 18 is driven by a common hoist 19.

The conventional connecting bridge elevator is constructed as described above, and when the hoisting machine 19 is driven, the car 10 and the car 11 are connected to the first point 1 and the elevated connecting bridge 8 via the main ropes 18. Alternately rises or falls between the second point 2 and the elevated connection bridge 8. As a result, it is possible to reduce the installation required floor space and installation costs for elevators at connecting bridges such as stations and pedestrian bridges.

[0004]

In the conventional elevator for a connecting bridge as described above, since the cars 10 and 11 of both elevators 4 and 5 are connected to each other by a single main rope 18, at the beginning of installation, The length of the main rope 18 is adjusted so that the cars 10 and 11 can be stopped within their respective floor levels, but the main rope 18 extends due to aging or the like. In such a state, if the floor level of one car is adjusted, the other car will be out of the floor level, and there is a problem that wheelchair users have trouble getting in and out of the car.

The present invention has been made in order to solve the above-mentioned problems, and even when both cars are connected by a single main rope, a connecting bridge capable of adjusting the landing level of both cars. It is an object of the present invention to provide a main rope adjustment device for an elevator.

In the main rope adjusting device for an elevator for a connecting bridge according to the first aspect of the present invention, a bypass is formed in a part of the main rope connecting the cars of two elevators, and the length of the bypass is variable. It is equipped with a main rope adjuster.

The main rope adjusting device for an elevator for a connecting bridge according to a second aspect of the present invention is the one according to the first aspect of the present invention, wherein the main rope adjusting device comprises a fixed warp wheel, a movable warp wheel, and a drive unit. The main rope is wound around a fixed warp wheel and a movable warp wheel, and the shaft position of the movable warp wheel is moved by a driving machine.

Further, a main rope adjusting device for an elevator for a connecting bridge according to a third aspect of the present invention is the one according to the second aspect of the present invention, which outputs an abnormality detection signal when the moving distance of the movable warp wheel exceeds a predetermined value. Is.

Further, in the main rope adjusting device for an elevator for a connecting bridge according to the fourth aspect of the present invention, when the cars of the first and second elevators are not in operation and are resting at the landing, their cages and the main rope adjusting device are arranged. When it is detected that a step more than a predetermined value has occurred between the floor of the car and the floor of the landing where the hoisting machine does not intervene in the main rope of the main rope, a drive command is issued to the drive machine of the main rope adjuster. It is designed to be output.

Further, the main rope adjusting device for an elevator for a connecting bridge according to the fifth aspect of the present invention, when the cars of the first and second elevators travel and land on the landing, they are provided between the cage and the main rope adjusting device. When it is detected that a step more than a predetermined value has occurred between the floor of the car and the floor of the landing where the hoisting machine does not intervene in the main rope of the main rope, a drive command is issued to the drive machine of the main rope adjuster. It is designed to be output.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1. 1 to 4 are views showing an embodiment of the first to fourth inventions of the present invention.
Is an overall perspective view, FIG. 2 is a schematic perspective view of the main rope adjusting device, FIG. 3 is a block diagram, and FIG. 4 is a main rope length adjusting operation flowchart, in which the same reference numerals indicate the same parts.

In FIG. 1, 1 is a first point consisting of a platform on the side of a ticket gate, 2 is a second point consisting of a platform on an island installed across a track 3 from the first point 1, and 4 is a first point. A first elevator 5 installed upright at a point 1 is a second elevator installed upright at a second point 2, 6 and 7 are hoistways of the first and second elevators 4 and 5, respectively.
Is installed between the first and second elevators 4 and 5, and is an elevated connecting bridge located above the track 3, and 9 is installed in the ceiling back part of the elevated connecting bridge 8 and the first and second elevators 4, 5
Is the machine room that connects

Reference numeral 10 is a car of the first elevator 4, 11 is a car of the second elevator 5, 12 is a buffer installed on the bottom of the hoistway 6 corresponding to the car 10, and 13 is a buffer corresponding to the car 11. Vessel 14 is provided at the first point 1,
The lower platform that forms the platform for the car 10, 15 is the upper platform that is also provided on the elevated connecting bridge 8, 16 is the lower platform that is provided at the second point 2 and that forms the platform for the car 11, and 17 is also the elevated platform It is a platform for the bridge 8.

Reference numeral 18 is a main rope having one end connected to the car 10 and the other end connected to the car 11 through the machine room 9, and 19 is installed in the machine room 9 at a position corresponding to the hoistway 6 and the main rope 18 is wound. Hoisting machine (consisting of electric motor, electromagnetic brake, etc.) 2
0 is a pulley installed at a position corresponding to the hoistway 6 in the machine room 9 and around which the main rope 18 is wound. 21 is a pulley installed at a position corresponding to the hoistway 7 in the machine room 9 and around which the main rope 18 is wound. Pulleys installed at positions corresponding to the hoistway 7 in the machine room 9, around which the main ropes 18 are wound, 23 is a main rope adjuster described in FIG. 2, 24
Is a control device installed in the machine room 9.

In FIG. 2, reference numerals 31 and 32 are fixed warp wheels which are wound around the main rope 18 and whose axial position is fixed, and 33.
Is a movable warp wheel which is disposed between the fixed warp wheels 31 and 32, is wound around the main rope 18, and has a variable axial position, and is pivotally supported at the other end of a support rod 35 having a rack 34 formed at one end. ing. 36 is a gear that engages with the rack 34, and 37 is a gear 36
A drive unit composed of an electric motor for driving the
5 is a limit switch that operates when it moves to a predetermined position.

In FIG. 3, reference numeral 41 designates the first and second elevators 4, which are provided in the control unit 24 and are composed of a CPU.
The following operation buttons 42 to 49 are connected to the operation management unit common to the No. 5 and No. 5. 42 and 43 are hall buttons provided in the lower hall 14 and the upper hall 15 of the first elevator 4, 44 and 45 are door close buttons and door open buttons provided in the car 10, respectively, and 46 and 47 are respectively 2 The hall buttons provided at the lower hall 16 and the upper hall 17 of the elevator 5 are door closing buttons and door opening buttons 48 and 49 provided inside the car 11, respectively.

Reference numeral 50 is connected to the operation management section 41, a motor drive section for driving and controlling the hoisting machine 19, and 51 and 52 are connected to the operation management section 14 for controlling the opening and closing of the doors of the car 10 and the car 11, respectively. Door control units 53, 54 are door opening / closing status signals for the car 10 and the car 11, respectively, 55,
56 is a car position detector provided in each of the cars 10 and 11, and 55a and 56a are outputs of the car position detectors 55 and 56, respectively, which are car position signals.

Next, the operation of this embodiment will be described. (1) Overall operation (FIGS. 1 and 3) Now, as shown in FIG. 1, it is assumed that the car 10 is waiting for the door to close at the lower hall 14 and the car 11 is waiting for the door at the upper hall 17 to close. Here, when a person at the lower hall 14 presses the hall button 42, the operation management unit 41 operates the door control unit 51 to open the car 10. When a person gets into the car 10, the car 10
The door is closed, and the motor drive unit 50 operates to drive the hoisting machine 19.

As a result, the car 10 rises through the main ropes 18 and the car 11 connected to the same main ropes 18 descends.
When the car 10 arrives at the landing 15, the car 10 is opened by the door control unit 51. When a person gets out of the car 10,
The car 10 automatically closes and immediately descends. On the other hand, a person who gets off the car 10 walks on the elevated connecting bridge 8 and arrives at the upper hall 17 of the second elevator 5.

At this time, since the car 10 is descending,
The car 11 is waiting at the landing 17. When a person who arrives at the landing 17 gets into the car 11, the car 11 closes, the car 11 descends, and at the same time the car 10 rises. That is, although the car 10 and the car 11 move up and down in conjunction with each other, the operation of each part as an elevator is the same as that of a normal elevator, and thus detailed description thereof will be omitted.

(2) Operation of the main rope adjuster 23 (FIG. 2) The main rope 18 moves while being wound around the fixed warp wheel 31, the movable warp wheel 33, and the fixed warp wheel 32 one by one. No change will occur. At the beginning of installation of the elevator, the length of the main rope 18 is adjusted so that the car 10 and the car 11 can be stopped within their respective floor levels, but when the main rope 18 extends due to secular change or the like. The driving machine 37 is driven as shown in the following item (3). As a result, the gear 36 rotates, and the rack 34 that engages with the gear 36, that is, the support rod 35, moves upward in the drawing.

At this time, the main rope 18 on the fixed warp wheel 32 side
Is fixed because it is wound around the hoisting machine 19, and the main rope 18 on the side of the fixed warp wheel 31 is pulled by the movable warp wheel 33. Therefore, the length of the main rope 18 can be apparently shortened. It is possible. As a result, the car 10 and the car 11 can be fitted to the landing floor without re-flooring.

(3) Main rope length adjustment operation (FIG. 4) In step S1, it is determined whether the elevator is not in operation (does not start even if a call occurs) and is not in operation. Nothing is processed unless it is in sleep. If it is not in operation, step S2
Then, it is judged from the car position signals 55a and 56a whether or not a step difference (hereinafter referred to as a floor slip) between the car floor and the landing floor of a predetermined value or more has occurred. If no bed sore has occurred, nothing is processed, and if a bed sore has occurred, the process proceeds to step S3. In step S3, it is determined whether or not a floor slip has occurred in the car 10.

If it is the car 10, the process proceeds to step S7, where the motor drive unit 50 controls the electric motor of the hoisting machine 19,
A normal floor alignment operation is performed in which a normal floor alignment is commanded to raise and lower the car 10 by a minute distance. If the floor sickness has occurred in the car 11, the process proceeds to step S4, and a drive command is output to the drive unit 37 of the main rope adjuster 23. As a result, as described above, the position of the movable warp wheel 33 moves, the apparent length of the main rope 18 changes, and the car 11 moves up or down a minute distance.

In step S5, it is determined whether the car 11 has entered the hall floor level. If it is not within the floor level, the process returns to step S4 to continue driving the driving machine 37.
When the vehicle enters the floor level, the process proceeds to step S6, a drive stop command for the drive unit 37 is output, and the car 11 stops. here,
Steps S1 to S3 constitute step detection means, and step S4 constitutes drive command means. In this way, by providing the main rope adjuster 23, it is possible to adjust the two cars 10 and 11 so that they are always in the hall floor level, and it is not necessary to wait for the end of the floor alignment operation. . Also,
Since the length of the main rope is adjusted while the elevator is at rest, it is possible to prevent service deterioration due to the adjustment time.

Embodiment 2. FIG. 5 is a main rope length adjusting operation flowchart showing an embodiment of the fifth invention of the present invention. 1 to 3 are also used in the second embodiment. In this embodiment, the extension of the main ropes 18 that occurs during the operation of the elevator is adjusted.

In step S11, it is determined whether the cars 10 and 11 are decelerating and are landing. Nothing is processed while running. If the car 10 is being landed, the process proceeds to step S12, and it is determined whether the car 10 is within the hall floor level. If it is out of the level, the process proceeds to step S18, and the electric motor of the hoisting machine 19 is controlled to instruct normal floor alignment. If the car 10 is within the level, the process proceeds to step S13, and if there is a passenger, the door control unit 51 outputs a door opening command to the car 10 to open the door.

In step S14, it is determined whether the car 11 is in the level, and if it is in the level, nothing is processed. If it is out of the level, the process proceeds to step S15. Steps S15 to S17 are the same as steps S4 to S6 in FIG. 4, and the apparent length of the main rope 18 is adjusted by the main rope adjuster 23. Here, steps S11 and S2 constitute step detecting means, and step S15 constitutes drive commanding means.

In this way, even if the main rope 18 is extended due to some abnormality while the elevator is traveling, one of the cages 10 and 11 is opened while the cages 10 and 11 are landed, and the appearance of the main rope 18 is apparent. Since the length of the vehicle is adjusted, it can be adjusted to the floor level of the landing without re-adjusting the floor, and the length of the main rope can be adjusted without lowering the service.

In the first and second embodiments, when the extension of the main rope 18 becomes abnormally large and the movement of the support rod 35 of the main rope adjuster 23 becomes large, the movable warp wheel 33 is formed.
Operates the limit switch 38, and an abnormality detection signal is output. As a result, the abnormal extension of the main rope 18 can be detected, and if the abnormality is reported, it is possible to detect the extension of the main rope 18 other than the regular inspection by the maintenance staff.

[0031]

As described above, in the first invention of the present invention, a detour is formed in a part of the main line connecting the cars of the two elevators, and the length of the detour is made variable. In the second invention, the main rope adjuster includes a fixed warp wheel, a movable warp wheel, and a drive unit, and the main rope is wound around the fixed warp wheel and the movable warp wheel, and the movable warp wheel is provided. Since the axis position of (1) is moved by the driving machine, it is possible to adjust the two cars so that they are always within the floor level of the hall, and it is not necessary to wait for the end of the floor alignment operation.

Further, in the third aspect of the invention, since the abnormality detection signal is output when the moving distance of the movable warp wheel exceeds a predetermined value, abnormal extension of the main rope can be detected, and it is possible to perform other than regular inspection by maintenance personnel. , The extension of the main rope can be detected.

According to the fourth aspect of the present invention, the hoisting machine does not intervene in the main rope between the car and the main rope adjuster while the cars of the first and second elevators are not in operation and at rest in the hall. When it is detected that there is a step above the specified value between the floor of the car and the floor of the landing, a drive command is output to the drive unit of the main rope adjuster. It is possible to prevent the deterioration of the service due to.

Further, in the fifth aspect of the invention, when the cars of the first and second elevators run and land on the landing, the hoisting machine does not intervene in the main ropes between the cars and the main rope adjuster. When it is detected that there is a difference in level between the floor of the car and the floor of the landing that exceeds a specified value, a drive command is output to the drive unit of the main rope adjuster. Even if the main rope extends, the two cars can be adjusted so that they are always within the floor level.

[Brief description of drawings]

FIG. 1 is an overall perspective view showing a first embodiment of the present invention.

2 is a schematic perspective view showing the main rope adjuster of FIG. 1. FIG.

FIG. 3 is a block diagram showing the first embodiment of the present invention.

FIG. 4 is an operation flowchart showing the first embodiment of the present invention.

FIG. 5 is a main rope length adjusting operation flowchart showing a second embodiment of the present invention.

FIG. 6 is an overall perspective view showing a conventional elevator for a connecting bridge.

[Explanation of symbols]

1 1st point, 2 2nd point, 4 1st elevator, 5 2nd elevator, 8 elevated connecting bridge, 10, 11 car, 14 lower platform, 1
5 upper hall, 16 lower hall, 17 upper hall,
18 main ropes, 19 hoisting machines, 23 main rope adjusters,
31, 32 fixed camber, 33 movable camber,
34 racks, 35 support rods, 36 gears, 3
7 Drive, 38 Limit switch, 41
Operation management department. S1 to S3 step detecting means, S4 drive commanding means, S11, S12 step detecting means, S
15 Drive command means.

Claims (5)

[Claims] 1. A first elevator is installed at one of the points facing each other, a second elevator is installed at the other, and both elevators are connected by an elevated connecting bridge, and the cars of both elevators are connected to a single main car. Connect with a rope,
An apparatus for driving the main ropes via a hoisting machine common to both elevators, wherein a main rope adjustment device is provided which forms a bypass portion in a part of the main ropes and makes the length of the bypass rope variable. Main rope adjustment device for elevators for connecting bridges. 2. A main rope adjuster comprising a fixed warp wheel around which the main rope is wound and whose axial position is fixed, and a movable warp around which the main rope is wound and whose axial position is variably set. The main rope adjustment device for an elevator for a connecting bridge according to claim 1, characterized in that the movable warp wheel is constituted by a drive device for moving the shaft position. 3. The main rope adjusting device for a connecting bridge elevator according to claim 2, further comprising a limit switch for outputting an abnormality detection signal when the moving distance of the movable warp vehicle exceeds a predetermined value. 4. The floor of the car in which the hoisting machine does not intervene in the main rope between the cage of the first and second elevators and the cage and the main rope adjuster while the cages of the first and second elevators are not operating. A step detecting unit that detects that a step having a predetermined value or more has occurred between the floor of the hall and a drive command that outputs a drive command to the drive machine of the main rope adjuster when the step is detected. The main rope adjusting device for an elevator for a connecting bridge according to claim 2 or 3, further comprising: 5. When the cars of the first and second elevators have run and landed on the landing, the car floor of the car in which the hoisting machine does not intervene in the main lines between the cars and the main line regulator. A step detecting unit that detects that a step having a predetermined value or more has occurred between the floor of the hall and a drive command that outputs a drive command to the drive machine of the main rope adjuster when the step is detected. The main rope adjusting device for an elevator for a connecting bridge according to claim 2 or 3, further comprising: