JP7186638B2 - Elevator door reopening control system - Google Patents

Description

The present disclosure relates to an elevator door reopening control system, and in particular, controls whether or not to reopen the doors when a landing button is pressed while the elevator doors are in a state where the doors are about to close from a fully closed state. The present invention relates to an elevator door reopening control system.

In an elevator control system that comprehensively manages the operation status of multiple cars, a hall button for calling a car is provided at each floor. Depending on the situation, the optimum car is assigned and directed to the boarding area of each floor. The assigned car lands on the floor, the door opens, and after the passenger gets on and off, the door closes and the car moves to the next destination floor, but after the passenger gets on and off, the door is about to close. , another passenger at the boarding hall may press the boarding hall button in order to board further. In this case, if the half-closed door is unconditionally reopened, the start of lifting and lowering of the car will be delayed, and the passengers in the car will have to wait.

Patent document 1 is an example in which a hall button can designate a destination floor. When the button is pushed, the stop probability that one car stops at the B floor is obtained by a predetermined method. If the probability that one car will stop on floor B is greater than or equal to a specified probability value, the door of the first car will be reopened, and if it is less than the specified probability value, another car will be newly allocated. is doing. In addition to the stop probability, an example using the service completion time from stopping at the A floor to picking up passengers and arriving at the B floor is also described.

As a technology related to the present disclosure, an elevator control system sets about 80% of a prescribed load predetermined for a car as a load equivalent to full occupancy, and when this is reached, a hall button is pressed on another floor. It is common for trains to pass through that floor. In Patent Document 2, a car is provided with an in-car load means and an in-car photographing means. A floor elevator control system is disclosed.

Furthermore, as a technology related to the present disclosure, the elevator control system requires that the car that has landed at the landing is almost full, so that the car that is currently on the floor cannot be called to call another car. There are many mechanisms in which the landing button is pressed again after the car starts on that floor. Patent document 3 discloses an elevator control system that can call another car to the floor by pressing the landing button for that floor when a car with a load equivalent to or more than the load equivalent to full occupancy is on the floor.

JP 2003-012246 A JP 2013-170034 A JP-A-6-247644

In conventional elevators, the car door and the landing door are opened and closed in conjunction with each other. When it closes and becomes fully closed, it starts ascending and descending toward the destination floor. When the landing button is pressed at the hall in the half-closed state before the door is fully closed, the half-closed door is reversed to the open state and reopened.
For example, in places with many passengers, such as department stores, in the multi-car elevator hall where multiple cars are operated, the boarding hall button is always pressed, and the half-closed door of the landing car is reversed. A situation in which it is impossible to leave may occur. For example, when a user of a boarding place thinks that the car has started to move and presses the boarding place button, the door flips open and becomes open. It is also conceivable that the driver presses a button to rush in and try to get in. In these cases, the passengers waiting in the car are forced to wait without departing, and the passengers waiting on other floors are forced to wait, resulting in a decrease in operating efficiency. , safety is also a concern when there is a last-minute rush. Therefore, there is a demand for an elevator door reopening control system that prevents rushing, etc., improves safety, and improves the operating efficiency of the elevator.

An elevator door reopening control system according to the present disclosure is an elevator control system that performs reopening control to shift the door to an opening operation under predetermined conditions when the elevator door is in a state where the door is about to close from a fully closed state. a reopening prohibition range setting unit for setting a reopening prohibition range in which the door is prohibited from opening within the entire range of the door half-closed position; is within the reopening prohibition range, a door position output unit that outputs a reopening prohibition signal, a hall button that outputs a car call signal to call the car at the hall, and a predetermined a control device that allocates one car according to the allocation procedure of , directs the one allocated car toward the landing, and opens and closes the door according to a predetermined door opening and closing procedure after landing at the landing, wherein the control device is When a car landing on the landing has received a car call signal from the landing button of the landing while the door is in a fully closed state or about to close, the door position output unit Determines whether or not a reopen prohibition signal has been received. If the reopen prohibition signal has not been received, the doors are reopened in response to the car call signal. Control is performed to invalidate the call signal and shift the door to a fully closed state according to a predetermined door opening/closing procedure.

According to the above configuration, within the entire range of the door half-closed position, a reopening prohibition range is set for prohibiting the opening operation of the door, and the position detected by detecting the half-closed position of the door is reopened. If it is within the prohibition range, it outputs a restart prohibition signal. Then, when the reopen prohibition signal is received, the car call signal from the hall button is invalidated, and the doors are shifted to the fully closed state according to a predetermined door opening/closing procedure. As a result, when the door is about to close to the reopening prohibition range, even if the landing button is pressed in that state, the door is closed without reopening. As a result, rushing is prevented, safety is improved, and the operating efficiency of the elevator is improved.

In the elevator door opening control system according to the present disclosure, the car includes a full state detection unit that detects the load in the car and outputs a full state signal when the load exceeds a predetermined passenger limit load, and the control device is Even if the reopen prohibition signal is not received, when the full state signal is received, the car call signal is invalidated and the door is controlled to shift to the fully closed state according to a predetermined door opening and closing procedure. is preferred.

According to the above configuration, even if the reopen prohibition signal is not received, when the car full state signal is received, the car call signal is invalidated and the doors are fully closed according to the predetermined door opening/closing procedure. transition to state. As a result, rushing into a full car is prevented, safety is improved, and the operating efficiency of the elevator is improved.

In the elevator door reopening control system according to the present disclosure, the control device does not receive the reopening prohibition signal for one car, but receives the full state signal. If the car has already been assigned to go to the landing, it is preferable to invalidate the car call signal and control the doors to move to the fully closed state according to a predetermined door opening/closing procedure.

According to the above configuration, even if one car does not receive the reopen prohibition signal but receives the full state signal, the other cars other than the one car are already directed to the hall. Disable the car call signal if it has been assigned. As a result, even if the door of one car, which is about to close, is moved to a fully closed state according to a predetermined door opening/closing procedure, it is possible to use the car by pressing the hall button because another car is heading for that hall. Passengers can be directed to other cars. Therefore, rushing is prevented, safety is improved, and the operating efficiency of the elevator is improved.

In the elevator door reopening control system according to the present disclosure, the reopening prohibition range setting unit is a timing plate provided with a length of the reopening prohibition range along the width direction of the car body, and the door position output The parts include a main body attached to the door, a swinging arm having a roller supported at one end so as to be swingable with respect to the main body and facing a timing plate at the other end, and the roller serving as a timing plate. The limit switch has a switch part that closes the contact when it is in contact with the plate and opens the contact when the roller is separated from the timing plate, and outputs a reopen prohibition signal while the contact is closed. preferable.

According to the elevator door reopening control system configured as described above, rushing is prevented, safety is improved, and the operating efficiency of the elevator is improved.

1 is a configuration diagram of an elevator door reopening control system according to an embodiment; FIG. 1. It is a front view of the car of the 1st car of FIG. FIG. 3 is a detailed view of the limit switch of FIG. 2; FIG. 5 is a diagram showing the positional relationship between the timing plate and the limit switch when the door is fully open; FIG. 10 is a diagram showing an example of the positional relationship between the timing plate and the limit switch when the door is within the reopening prohibition range when the door is about to close (2/5) from the fully open state to the fully closed state. FIG. 5 is a diagram showing the positional relationship between the timing plate and the limit switch when the door is fully closed; By adjusting the position of the timing plate in the car, the position of the timing plate and the limit switch when the door is within the reopen prohibition range when the door is about to close (3/5) from the fully open state to the fully closed state. It is a figure which shows an example of positional relationship. 4 is a flowchart showing a door reopening control procedure executed by the controller of the elevator door reopening control system in the embodiment; FIG. 9 is a flow chart of a modification of FIG. 8; FIG. FIG. 10 is a flow chart of a modification of FIG. 9; FIG.

Embodiments according to the present disclosure will be described in detail below with reference to the drawings. In the following, unless otherwise specified, an elevator refers to a passenger transport device mainly consisting of a car and a landing, and an elevator door-opening control system refers to elevator control including door-reopening control related to landing buttons. Show system. The elevator door reopening control system is a control system that includes not only door reopening control related to hall buttons, but also elevator elevation control, elevator door opening/closing control, safety door reopening control, and the like.

In the following, it is assumed that the building in which the elevator door reopening control system is installed is on the fifth floor, and three elevators move up and down in parallel, but this is an example for explanation. For example, a high-rise building may be configured with more elevators.

The shape, number, etc. described below are examples for explanation, and can be changed as appropriate according to the specifications of the elevator reopening control system. In the following, the same reference numerals are given to the same elements in all the drawings, and redundant explanations are omitted.

FIG. 1 shows the overall configuration of an elevator door reopening control system 10 . Hereinafter, the elevator door reopening control system 10 will be referred to as the control system 10 unless otherwise specified.

The control system 10 is a control system for a multi-car elevator that controls the operation of three elevators 14 , 16 , 18 provided in a five-story building 12 with one control device 20 .

The control system 10 uses a hoistway (not shown) that penetrates the building 12 in the vertical direction, puts passengers from the landings of each floor in the elevator car 22, and moves them up and down in the hoistway according to the passenger's request to reach the desired position. A control system for elevators 14, 16, 18 that land on landings and unload passengers.

FIG. 1 shows landings 24 , 26 , 28 of three elevators 14 , 16 , 18 on the 2nd, 3rd and 4th floors of a five-story building 12 .

Since the landings 24, 26 and 28 on each floor have the same structure, the landing 26 on the third floor will be mainly described. A landing 26 on the third floor is provided with three entrances corresponding to the three elevators 14, 16 and 18, respectively. Since each entrance/exit has the same structure, the entrance/exit corresponding to the elevator 18 will be mainly described. A doorway corresponding to the elevator 18 is set back from a wall 30 covering a hoistway (not shown) of the building 12 and is provided with a three-sided frame 32 that separates the left, right, and top of the doorway. Display boards 25 , 27 , 29 indicating each floor are posted on the wall 30 . For example, on the wall 30 of the hall 26 on the third floor, a display board 27 with the number "3" is displayed. Similarly, on the wall 30 of the landing 24 on the second floor, a display board 25 bearing the number "2" is displayed, and on the wall 30 of the landing 28 on the fourth floor, the number "4" is displayed. A display board 29 is posted.

Behind the wall 30 is a hoistway in which the cars 22 of the three elevators 14, 16, 18 ascend and descend. The elevator 18 ascends and descends in the hoistway between the upper floor side and the lower floor side of the building 12, and jambs 32 are installed at landings 24, 26 and 28 on each floor along the hoistway. The positions where the elevator 14 lands on the halls 24, 26, and 28 of each floor are the installation positions of the jambs 32. As shown in FIG. A landing door 34 is provided in a rectangular opening sectioned by the landing floor and the jamb 32 . The landing door 34 is a double door that opens to the left and right.

The three elevators 14, 16, and 18 are distinguished, and the elevator 14 is referred to as No. 1, the elevator 16 as No. 2, and the elevator 18 as No. 3. A display board 15 with the number "1" is attached to the landing door 34 of each floor for the elevator 14. - 特許庁Similarly, the landing door 34 of each floor for the elevator 16 is affixed with a sign 17 bearing the number "2", and the landing door 34 of each floor for the elevator 18 is labeled with the number "3". The displayed display board 19 is attached.

Hall buttons 36 are provided on the left and right frames of the jamb 32 on the wall 30 . The hall button 36 is a car call button for the user 8 at the halls 24, 26, 28 to call the car 22 to the floor. The landing button 36 is composed of a set of buttons having an upward triangular shape for calling the car 22 going to the upper floor side and a button having a downward triangular shape for calling the car 22 going to the lower floor side. be. For example, if a passenger 8 at the landing 26 on the 3rd floor wishes to go to the 4th or 5th floor, he presses a button having an upward triangular shape. If you want to go to the 2nd or 1st floor, press the button with a downward pointing triangular shape. In the example of FIG. 1, four sets of hall buttons 36 are provided in the halls 24, 26 and 28 of each floor. Passengers 8 on each floor may operate any set of hall buttons 36 . An operation signal for each hall button 36 is transmitted to the control device 20 via an appropriate signal line with a distinction between the halls 24, 26 and 28 and a distinction between the upper floor side and the lower floor side.

In the wall portion 30, the upper frame of the three-sided frame 32 is provided with a current floor display plate 38 and an elevation display plate 40 for displaying the operation status of the corresponding cars 22 of the first, second and third cars. The current floor display board 38 displays the current ascending/descending position of the car 22 in building floors, and is composed of five flashing lights corresponding to the first to fifth floors. The elevator display board 40 is composed of an upward triangular flashing light indicating that the car 22 is ascending and a downward triangular flashing light indicating that the car 22 is descending. In the example of FIG. 1, the No. 1 car is currently landing on the 2nd floor and is scheduled to operate toward the 1st floor. A blinking light lights up, and the current floor display board 38 lights up a blinking light indicating the second floor. Since the No. 2 car is currently landing on the 3rd floor and is scheduled to operate toward the upper floors, the up/down triangular flashing light on the lift display board 40 of the jamb 32 for the No. 2 car on each floor lights up. On the current floor display board 38, a blinking light indicating the third floor lights up. Since the No. 3 machine is currently ascending between the 4th and 5th floors, the ascending/descending display board 40 of the three-sided frame 32 for the No. 3 machine on each floor lights up with an upward triangular flashing light, and the current floor display board 38 A blinking light indicating the 4th floor lights up.

Shapes and number fonts of the display boards 25, 27, 29, 15, 17, and 19, shape of the hall button 36, number and shape of flashing lights on the current floor display board 38, flashing lights on the elevator display board 40 is an example for explanation, and may be a shape or the like other than the above. Further, depending on the specifications of the control system 10, installation of the display boards 15, 17, 19, the current floor display board 38, the lift display board 40, and the like may be omitted.

The first elevator 14 , the second elevator 16 , and the third elevator 18 have the same configuration and each have a car 22 . The car 22 is a passenger carrying car that carries the passengers 6 up and down in the hoistway. A car door 70 is provided on the car 22 . Correspondingly to the landing door 34 which is a double door opening left and right, the car door 70 is also a double door opening left and right.

It is an example for explanation that the landing door 34 and the car door 70 are two doors that open to the left and right. It may be a single door. Hereinafter, unless otherwise specified, a set of opening/closing doors for one jamb 32 is called a landing door 34, and a set of opening/closing doors for one car 22 is called a car door 70, regardless of the number of doors. Since the car door 70 opens and closes with respect to the car 22, the width dimension of the car 22 is larger than the opening width dimension of the jamb 32 corresponding to the size of the opening/closing stroke.

When the car 22 lands on a desired landing 24, 26, or 28, the floor 61 (see FIG. 2) of the car 22 is aligned with the landing floor so that the landing door 34 and the car door 70 face each other. Stop at the same height position. For example, when the car 22 descends from the upper floor side of the hoistway with respect to the landing door 34, the car door 70 and the landing door 34 are engaged with each other at the landing position so that they are opened and closed integrally. An interlocking opening/closing mechanism (not shown) is provided for the car door 70 and the landing door 34 . In this way, when the car 22 lands on a desired landing 24, 26, or 28, the car door 70 and the landing door 34 open and close in conjunction with each other. The doors 34 are collectively referred to as doors 34,70. For example, the door reopening means that the car door 70 and the landing door 34 are linked and reopened.

The car 22 is provided with a car operating panel 63 on which the passenger 6 can set and register a destination floor (see FIG. 2). At the halls 24, 26, 28, when the doors 34, 70 are fully opened, passengers 6, 8 get on and off. When the passengers 6 and 8 have finished getting on and off, the doors 34 and 70 are closed under predetermined conditions to be in a fully closed state, and the car 22 ascends and descends toward the destination floor registered by the car operation panel 63.例文帳に追加At this time, the interlocking opening/closing mechanism is disengaged, and the car door 70 and the landing door 34 are each maintained in the fully closed state with a predetermined biasing force.

In the example of FIG. 1, the car 22 of car No. 1 is landing at the landing 24 on the second floor, and the doors 34 and 70 are fully open. The car 22 of the second car is landing at the landing 26 on the third floor, and the doors 34 and 70 are about to close. Since the car 22 of the third car is ascending between the 4th and 5th floors, the car door 70 is fully closed. Each car 22 shows the passengers 6 in the car. The doors 34 and 70 of the car 22 of the second car are about to close at the third-floor hall 26, but the passenger 8 who runs in the hall 26 thinks to get on the half-closed car 22 and presses the hall button 36. is about to be pressed.

In FIG. 1, the walls 30 of the landings 24, 26 and 28 are partially cut away to show the configuration of the upper portion of each car 22. As shown in FIG. Door opening/closing units 42 , 44 , 46 for opening and closing the doors 34 , 70 are provided on the top of each car 22 . When the door opening/closing units 42 , 44 , 46 are distinguished for each car 22 , they are referred to as the No. 1 car door opening/closing unit 42 , the No. 2 car door opening/closing unit 44 , and the No. 3 car door opening/closing unit 46 . A door reopening adjustment unit 48 that adjusts the door opening control range related to the hall button 36 is further provided at the top of each car 22 . The details of the door reopening adjusting section 48 will be described later. The No. 1 car door opening/closing unit 42, the No. 2 car door opening/closing unit 44, the No. 3 car door opening/closing unit 46, and the door reopen adjustment unit 48 of the car 22 are connected to the control device 20 via appropriate signal lines.

The control device 20 is a device that comprehensively controls the operation of each element of the control system 10 and is arranged in the machine room on the top floor of the building 12 . Alternatively, depending on the specifications of the control system 10, it may be provided at the top of the hoistway to eliminate the machine room. The control device 20 includes a plurality of hall buttons 36 provided at each of the halls 24, 26, and 28, a car operation panel 63 provided at each car 22, door opening/closing units 42, 44, and 46, and a door reopening adjustment unit 48. , and various sensors (not shown). The control device 20 includes an elevation control block 50 and a door opening/closing control block 52 . The elevating control block 50 assigns the optimum car 22 to each of the halls 24, 26, 28 according to the operation status of each hall button 36 and each car operation panel 63 and the operation status of the plurality of cars 22. It has the function of directing. The door opening/closing control block 52 cooperates with each door opening/closing unit 42, 44, 46, opens the doors 34, 70 when the assigned car 22 lands on a predetermined landing, and the user 6 gets on and off. Doors 34 and 70 are then closed.

The door opening/closing control block 52 further includes a safety door reopen control section 54 and a hall button door reopen control section 56 .

A safety door reopen control unit 54 reopens the doors 34, 70 when the doors 34, 70 are about to close and there is a risk that the passengers 6, 8 may be caught between the doors 34, 70. - 特許庁The safety door reopening control is a well-known technique, so detailed description is omitted, but it is performed independently of the hall button door reopening control. In other words, in the hall button reopening control, even if door reopening is prohibited and the doors 34 and 70 are being closed, if there is a risk that the passenger 6 may be caught between the doors 34 and 70, the doors are closed. 34 and 70 are reopened.

A hall button door reopen control unit 56 controls whether or not the doors 34, 70 are reopened when the user 8 of the hall 26 presses the hall button 36 while the doors 34, 70 are about to close. conduct. The hall button door reopening control unit 56 is a characteristic part of the elevator door reopening control system 10 .

FIG. 2 is a front view of the car 22 of the first car. A detailed configuration of the door reopening adjustment unit 48 will be described with reference to FIG. 2 . FIG. 2 shows the vertical direction, width direction, and depth direction of the car 22 . The vertical direction is a direction parallel to the direction in which the car 22 ascends and descends, with the upper story side being the upper side and the lower story side being the lower side. As for the width direction, when the hoistway side is viewed from the landing 24 side, the right side is the right side and the left side is the left side. The depth direction is the direction from the landing 24 side toward the hoistway side. FIG. 2 corresponds to a diagram viewed from the landing side in the depth direction.

The car 22 includes a car main body 60 forming a car room 21 for accommodating passengers 6, and a car upper part. A No. 1 car door opening/closing unit 42 and a car door opening/closing mechanism (not shown) are mounted on the upper part of the car. The car body 60 is a box surrounded by a rear wall on the hoistway side in the depth direction, left and right side walls, a floor and a ceiling, and is open on the landing side in the depth direction. The opening of the car main body 60 on the landing side is not entirely open, and is provided with left and right side wall portions 62L and 62R and an upper wall portion 64 on the ceiling side. The entrance/exit portion defined by 62R and the upper wall portion 64 on the ceiling side opens. The size of the opening of the entrance/exit of the car main body 60 of the car 22 corresponds to the size of the opening of the jamb 32 of the landing 24 .

Various operation units such as a car operation panel 63 in the car chamber 21, a display unit, and the like are provided on the left and right side wall portions 62L and 62R. A sill plate 66 is attached to the side surface of the floor of the car body 60 on the landing side, and a sill groove 67 is provided in the sill plate 66 . A door rail 68 extending in the width direction is provided on the side surface of the top wall portion 64 on the landing side.

The car door 70 has two doors that open to the left and right. When distinguishing between the two, the left side is called the car door 70L and the right side is called the car door 70R. Since the cage door 70L and the cage door 70R have the same basic configuration, the cage door 70L will be mainly described below.

The car door 70L is a panel member that covers the entrance, which is the opening of the car main body 60, and a slide shoe 72L is attached to the lower end of the car door 70L. The slide shoe 72L is attached so as to be slidable along the threshold groove 67 of the threshold plate 66 of the car main body 60, and functions to suppress movement and shaking when the car door 70L is opened and closed along the width direction. A door hanger 74L is attached to the upper end portion of the car door 70L, and the door hanger 74L has rotating rollers 76L on both widthwise end sides. The rotating roller 76L can roll on the upper surface of the door rail 68 along the width direction, whereby the car door 70L is suspended from the door rail 68 so as to be movable in the width direction. Similarly, the car door 70R has a slide shoe 72R attached to its lower end, and a door hanger 74R having rotating rollers 76R on both sides in the width direction attached to its upper end.

The car door 70L and the car door 70R are arranged symmetrically with respect to the center line CC, and are driven to move in the width direction by the No. 1 car door opening/closing unit 42 and the car door opening/closing mechanism. When the car door 70L and the car door 70R are driven to move along the width direction, they move symmetrically with respect to the center line CC. In FIG. 2, since the car door 70 is fully open, the car door 70L is retracted to the left side until it almost overlaps the left sleeve wall portion 62L of the car main body portion 60, and the car door 70R is moved to the left side of the car main body portion 60. It is in a state of being retracted to the right side to a position where it almost overlaps with the right sleeve wall portion 62R.

On the other hand, when the car door 70 is fully closed, the right end of the car door 70L moves to the center line C--C, and the left end of the car door 70R moves to the center line C--C. The right end portion of the car door 70L and the left end portion of the car door 70R are butted against each other. In the fully closed state, there is an overlapping portion between the left end of the car door 70L and the right end of the left sleeve wall portion 62L of the car main body 60, and the right end of the car door 70R and the right side of the car main body 60 overlap. There is an overlapping portion with the left end portion of the sleeve wall portion 62R. The width dimensions of the left and right sleeve walls 62L and 62R of the car main body 60 and the width dimensions of the car doors 70L and 70R are set so that this overlapping portion occurs.

The car door 70L moves from the left side to the right side in the width direction from the fully open state to the fully closed state in the entire range S0 that is about to be closed. Similarly, the car door 70R moves from the left side to the right side along the width direction from the fully open state to the fully closed state in the entire range S0 that is about to close. Therefore, the two-door car door 70 as a whole moves (2×S0) as the total range of closing from the fully open state to the fully closed state.

When there are passengers 6 in the car 22 and the landing button 36 is pushed when the car door 70 is about to close, the car door 70 is reopened if it starts to close, and is closed considerably and close to being fully closed. In such a case, it is preferable to shift the car door 70 to the fully closed state as it is without reopening. The door reopening adjustment unit 48 is a mechanism that adjusts the setting of a reopening prohibition range S1 for prohibiting the opening operation of the car door 70L within the entire range S0 of the half-closed position of the car door 70L. The car door L and the car door 70R constituting the car door 70 are opened and closed in conjunction with each other, and the car door 70 and the landing door 34 are also opened and closed in conjunction with each other. , 70 to adjust the setting of the restart prohibition range (2×S1).

The door reopening adjustment unit 48 has a reopening prohibition range setting unit 90 that sets a reopening prohibition range S1 for prohibiting the opening operation of the doors 34, 70 within the entire range S0 of the closing position of the doors 34, 70. including. Further, it includes a door position output unit 100 that detects the positions of the doors 34, 70 that are about to be closed, and outputs a reopen prohibition signal when the detected position is within the reopen prohibition range S1.

In the example of FIG. 2, the total range of closing positions of the doors 34 and 70 is 2×S0. It suffices to set the reopening prohibition range S1 for the entire range S0 of the half-closed position. Below, a reopening prohibition range S1 is defined for the entire range S0 of the half-closed position of the left car door 70L. In FIG. 2, the timing plate 90 is a restart prohibition range setting portion extending in the width direction of the upper wall portion 64 on the left side of the center line CC of the car body portion 60 for a predetermined length. The limit switch 100 is a door position output section 100 attached to the door hanger 74L of the car door 70L.

The timing plate 90 is an elongated plate member having a mounting adjustment slot 92 extending in the longitudinal direction. The upper wall portion 64 of the car main body portion 60 is provided with two female screw portions which are arranged at an appropriate interval within the range of the entire length of the mounting adjustment long hole 92 along the width direction. Therefore, the shafts of two bolts 94 are passed through the elongated holes 92 for mounting adjustment of the timing plate 90, and the male threads at the ends thereof are screwed into the two female threads of the upper wall 64, respectively, and the heads of the two bolts 94 are , the timing plate 90 is pressed down. As a result, the timing plate 90 can be fixed to the upper wall portion 64 of the car main body portion 60 while adjusting the arrangement position within the range of the entire length of the mounting adjustment long hole 92 .

A lower longitudinal surface of the timing plate 90 is a position detection surface 96 with which the limit switch 100 contacts. In the arrangement position of the timing plate 90 shown in FIG. 2, the left end portion 98 of the position detection surface 96 is in the closing process when the car door 70L moves rightward from the fully closed position, and the operating point of the limit switch 100 is initially set. This is the position where the This is the starting point of the restart prohibition range S1 on the timing plate 90. As shown in FIG. The end point of the reopening prohibition range S1 is the position where the operating point of the limit switch 100 contacts the timing plate 90 when the car door 70L moves to the position of the center line CC of the car main body 60, as shown in FIG. In this case, it is the right end portion 99 of the position detection surface 96 of the timing plate 90 .

FIG. 3 is a detailed diagram of the limit switch 100. As shown in FIG. The limit switch 100 has a body portion 102 attached to the door hanger 74L of the car door 70L and a swing arm portion 106 whose one end is supported by a support portion 104 of the body portion 102 so as to be swingable. A roller portion 108 is provided at the other end of the swing arm portion 106 so as to face the timing plate 90 and serve as an action point capable of contacting the position detection surface 96 of the timing plate 90 . A biasing force is applied to the swing arm portion 106 in the direction in which the roller portion 108 is directed upward in the free state. The position of the limit switch 100 with respect to the door hanger 74L is set so that the point of action when the roller portion 108 moves downward against the biasing force is the right end of the car door 70L.

The height position along the vertical direction of the position detection surface 96 of the timing plate 90 is set below the height position of the roller portion 108 in its natural state. Therefore, when the roller portion 108 contacts the position detection surface 96 of the timing plate 90, the swing arm portion 106 is biased about the support portion 104 as shown by the two-dot chain line in FIG. Rotate downwards against it. An arm-side contact 110 is provided on the swing arm portion 106 , and a body-side contact 112 is provided on the body portion 102 . In a natural state where the roller portion 108 is not in contact with the position detection surface 96 of the timing plate 90, the arm side contact 110 and the body side contact 112 are not in contact. When the roller portion 108 is in contact with the position detection surface 96 of the timing plate 90, the arm-side contact 110 and the body-side contact 112 are in contact with each other.

For example, the signal line a of the arm-side contact 110 is set to the "L" level potential through an appropriate current limiting resistor, and the signal line b of the body-side contact 112 is set to the "H" level potential. Here, when the roller portion 108 contacts the timing plate 90, the potential of the signal line a of the arm side contact 110, which is naturally at "L" level, becomes "H" level. Therefore, by detecting the potential of the signal line a of the arm-side contact 110, it is possible to detect whether or not the position where the car door 70L is about to close is within the reopening prohibition range S1. In this example, the signal line a of the arm-side contact 110 is a restart prohibition signal output line, and when the signal line a outputs "H" level, it indicates the restart prohibition state, and when it outputs "L" level. Indicates reopening allowable state.

4 to 6 show the relationship between the closing state of the car door 70L and the output level of the signal line a. These figures are views of the upper part of the car 22 extracted. In these figures, the arrangement position of the timing plate 90 with respect to the upper wall portion 64 of the car 22 is the same.

FIG. 4 shows the state of car No. 1 in FIG. 1 and the state of FIG. 2 when the car door 70L is fully open. In this case, since the limit switch 100 is not in contact with the timing plate 90, the signal line a outputs "L" level. When the hall button 36 is pushed in this state, the doors 34 and 70 are reopened.

FIG. 5 shows the state of car No. 2 in FIG. 1 when the car door 70L is about to close. In FIG. 5, the car door 70L is closed by (2/5) of the total range S0 of the closing position, and the opening length between the car door 70L and the car door 70R is {2×(3/5)S0 } is shown. In this case, the limit switch 100 starts contacting the timing plate 90 and the signal line a outputs "H" level. Even if the landing button 36 is pushed in this state, the doors 34 and 70 do not reopen, but shift to the fully closed state.

FIG. 6 shows the state of car No. 3 in FIG. 1 when the car door 70L is fully closed. In this case as well, the limit switch 100 is in contact with the timing plate 90, so the signal line a outputs "H" level. Even if the hall button 36 is pushed in this state, the doors 34 and 70 do not reopen and remain fully closed.

FIG. 7 is a diagram showing an example in which the arrangement position of the timing plate 90 is adjusted. Here, the bolt 94 is once loosened. Then, the position of the timing plate 90 with respect to the upper wall portion 64 of the car 22 is moved to the right by (1/5) S0 with respect to the case of FIGS. Adjust the position of the portion 98 . Then, the bolt 94 is tightened again for fixing. FIG. 7 shows that the car door 70L is closed by (3/5) of the entire range S0 of the closing position, and the opening length between the car door 70L and the car door 70R is {2×(2/5) S0}. In this state, the limit switch 100 starts contacting the timing plate 90, and the signal line a outputs "H" level. Even if the landing button 36 is pushed in this state, the doors 34 and 70 do not reopen, but shift to the fully closed state. In FIG. 5, the reopen prohibition state starts when the doors 34 and 70 are about to close {2×(2/5)S0}, but in FIG. } At the stage of closing, the reopening prohibition state starts. Only this time difference allows the passenger 8 at the hall to get into the car 22 whose doors 34 and 70 are about to close.

The number of elevators in the building 12, the number of passengers 6 and 8 in the elevators, and the like are characteristics specific to the building 12, so the doors 34 and 70 of the car 22 are controlled to reopen according to the difference in characteristics. There are times when you want to set According to the above configuration, in such a case, it is possible to adjust the starting point of the restart prohibition range S1 by moving the position of the timing plate 90 with respect to the upper wall portion 64 of the car 22 .

In the above, the timing plate 90 is provided on the upper wall portion 64 of the car main body portion 60 and the limit switch 100 is provided on the door hanger 74L of the car door 70L, but this is an example for explanation. The timing plate 90 and the limit switch 100 work together to set a reopening prohibition range (2×S1), and when the closing position of the doors 34 and 70 is within the reopening prohibition range (2×S1) Any device may be used as long as it outputs a reopen prohibition signal to the terminal.

Therefore, the installation location of the timing plate 90 and the installation location of the limit switch 100 are relative. may be provided.

Moreover, if the car door 70L half-closed position where the reopening prohibition range S1 starts is the same, both the installation positions of the limit switch 100 and the timing plate 90 may be changed. In the above description, the position of the point of action at which the roller portion 108 of the limit switch 100 moves up and down is the right end of the car door 70L. You may set it in the center part of a direction. In that case, the installation position of the timing plate 90 may be shifted leftward by (1/2) the widthwise length of the car door 70L.

In the above, the timing plate 90 having the length of the reopening prohibition range S1 within the entire range S0 of the half-closing position of the car door 70L is used. Alternatively, another timing plate having a length of the reopening tolerance range (S0-S1) within the full range S0 of the car door 70L's half-closed position may be used. In this case, the period during which the roller portion 108 of the limit switch 100 is in contact with the timing plate having the length of (S0-S1) is the restart allowable period, and the roller portion 108 has the length of (S0-S1). When the timing plate with the . The potential level of the signal line a of the limit switch 100 is "H" level during the reopening allowable period, and the "L" level signal is the reopening inhibition signal.

In the above description, the timing plate 90 and the limit switch 100 are provided on the car door 70L side, but the timing plate 90 and the limit switch 100 may be provided on the car door 70R side. The support portion 104, which is one end of the swing arm portion 106 of the limit switch 100, is arranged on the left side in the width direction with respect to the roller portion 108, which is the other end. , may be placed on the right side in the width direction. Also, the limit switch 100 is attached to the upper surface of the door hanger 74L, but may be attached to either side of the door hanger 74L. Further, although the limit switch 100 is of a type having the swinging arm portion 106, it may be of a type having a vertically movable operator.

In the above description, the timing plate 90 is used as the restart prohibition range setting unit, and the limit switch 100 is used as the door position output unit, but this is an example for explanation. Any configuration may be used as long as the position at which the car door 70L is about to close when the door 34, 70 outputting the reopen prohibition signal can be adjusted. For example, a cam plate having an appropriate shape may be used in place of the timing plate 90, and the cam plate and the limit switch 100 may be combined. Alternatively, an appropriate position detection sensor may be used in place of the limit switch 100, and a combination of the timing plate 90 and the position detection sensor may be used.

Next, the operation of the control device 20 of the elevator door reopening control system 10, in particular, the operation of the hall button door reopening control section 56 will be described in detail with reference to FIG. FIG. 8 is a flowchart showing a door reopening control procedure executed by the control device 20. As shown in FIG. Here, of the three elevators 14, 16, 18 in FIG. 1, the second elevator 16 will be described as an example.

The second car ascends from the lower floor side of the building 12 and lands on the third floor (S10). This procedure is executed by the function of the elevation control block 50 of the control device 20 . When the vehicle lands on the floor, the doors 34, 70 start to open from the fully closed state (S12). When the doors 34 and 70 are fully opened (S14), the passenger 6 gets on and off (S16). Then, when an appropriate amount of time has passed or the car operation panel 63 is operated to "close the doors", the doors 34, 70 begin to close from the fully open state and shift to a nearly closed state (S18). The opening and closing of the doors 34 and 70 from S12 to S18 are executed by the function of the No. 2 car door opening/closing unit 44 under the control of the door opening/closing control block 52 of the control device 20 . Car No. 2 at the hall 26 in FIG. 1 is in the state of S18.

Next, it is determined whether or not the landing button 36 at the landing 26 on the third floor of the building 12 has been pressed (S20). If the determination in S20 is negative, the process proceeds to S26, in which the doors 34 and 70 continue to be closed and become fully closed. If the determination in S20 is affirmative, then it is determined whether or not a reopen prohibition signal has been received (S22). Whether or not the reopen prohibition signal has been received is determined by the potential level of the signal line a of the limit switch 100 provided in the car 22 of the second car.

If the potential level of the signal line a is "L", the reopen prohibition signal has not been received, so the determination in S22 is negative, and the doors 34 and 70 are reopened in response to the car call signal from the hall button 36 (S24). Then, the process proceeds to S14 and the doors 34, 70 are fully opened. As a result, the passenger 8 who presses the hall button 36 on the third floor in FIG. 1 can get into the car 22 of the second car (S16).

If the potential level of the signal line a is "H", the reopen prohibition signal has been received, so the determination in S22 is affirmative, invalidates the car call signal from the hall button 36 of the hall 26, and follows the predetermined door opening/closing procedure. The doors 34 and 70 are kept closed and shifted to a fully closed state (S26). The procedure from S20 to S26 is executed by the function of the hall button door reopening control section 56 of the door opening/closing control block 52 of the control device 20 . After S26, the passenger ascends to the registered destination floor in the second car (S28), and then returns to S10. The procedure of S<b>28 is executed by the function of the elevation control block 50 of the control device 20 .

As described above, first, within the entire range (2×S0) of the positions where the doors 34 and 70 are about to be closed, the reopening prohibition range (2×S1) is set to prohibit the opening operation of the doors 34 and 70. . Then, when the detected positions of the doors 34 and 70 are within the reopening prohibition range (2×S1), a reopening prohibition signal is output. Then, when the reopen prohibition signal is received, the car call signal from the hall button 36 is invalidated, and the doors 34, 70 are shifted to the fully closed state according to a predetermined door opening/closing procedure. As a result, when the doors 34 and 70 are about to close to the reopening prohibition range (2×S1), even if the hall button 36 is pressed in that state, the doors 34 and 70 are closed without reopening. Therefore, rushing is prevented, safety is improved, and the operating efficiency of the elevator is improved.

FIG. 9 is a flow chart showing a modification of FIG. Here, the car 22 is provided with a occupancy detection section that detects the load in the car and outputs a occupancy signal when the load exceeds a predetermined passenger limit load. In this case, if the determination of whether or not the reopen prohibition signal has been received in S22 is negative and the reopen prohibition signal has not been received, it is determined whether or not the full state signal has been received (S30). If the determination in S30 is affirmative, the process proceeds to S26 even if the reopen prohibition signal has not been received, in which the car call signal is invalidated and the doors 34 and 70 are shifted to the fully closed state according to a predetermined door opening/closing procedure. . If the determination in S30 is negative, the process proceeds to S24, and the doors 34 and 70 are reopened in response to the car call signal of the hall button 36. The procedure of S<b>30 is executed by the function of the hall button door reopening control section 56 of the door opening/closing control block 52 of the control device 20 .

According to the control procedure of FIG. 9, even if the reopen prohibition signal is not received, when the car 22 full state signal is received, the car call signal is invalidated and the door is opened according to the predetermined door opening/closing procedure. 34, 70 are moved to the fully closed state. As a result, rushing into the full car 22 is prevented, safety is improved, and the operating efficiency of the elevator is improved.

FIG. 10 is a flow chart showing a modification of FIG. In FIG. 9, if the determination in S22 is negative, it is determined in S30 whether or not a full-occupancy signal has been received. In FIG. 10, if the determination in S30 is negative, it is determined whether or not the car 22 other than the car 22 of the second car has already been assigned to go to the hall 26 on the third floor ( S32). The procedure of S<b>32 is executed by the function of the elevation control block 50 of the control device 20 . If the determination in S32 is affirmative, since another car 22 is already on its way to the 3rd floor, the process proceeds to S26, in which the car call signal of the 3rd floor hall button 36 is invalidated, and the door 34 is opened according to a predetermined door opening/closing procedure. , 70 to the fully closed state. If the determination in S32 is negative, the process proceeds to S24, and the doors 34 and 70 are reopened in response to the car call signal of the hall button 36.

According to the control procedure of FIG. 10, even if the one car 22 has not received the reopen prohibition signal and the full state signal has not been received , the other car 22 is already on the third floor. If the car is assigned to go to the hall 26, the car call signal is invalidated. As a result, even if the doors 34 and 70 of one car 22 that are about to close are moved to the fully closed state, the other car 22 is heading for the landing 26 on the third floor, so the landing button 36 is pressed at the landing 26. The pushed passenger 8 can be guided to another car 22. - 特許庁Therefore, rushing is prevented, safety is improved, and the operating efficiency of the elevator is improved.

6, 8 passengers, 10 (elevator door reopen) control system, 12 building, 14, 16, 18 elevator, 15, 17, 19, 25, 27, 29 sign board, 20 control device, 21 cab, 24 , 26, 28 platform, 30 wall, 32 three-sided frame, 34 platform door, 34, 70 door, 36 platform button, 38 current floor display board, 40 elevation display board, 42 Unit 1 door opening/closing part, 44 Unit 2 door opening/closing 46 No. 3 door opening/closing unit 48 door reopening adjustment unit 50 elevation control block 52 door opening/closing control block 54 safety door reopening control unit 56 landing button door reopening control unit 60 car main body 61 Floor surface, 62L, 62R (left and right) wing wall, 63 car operation panel, 64 upper wall, 66 threshold plate, 67 threshold groove, 68 door rail, 70, 70L, 70R car door, 72L, 72R slide shoe, 74L, 74R door hanger, 76L, 76R rotating roller, 90 timing plate (reopening prohibition range setting part), 92 elongated hole for mounting adjustment, 94 bolt, 96 position detection surface, 98 left end, 99 right end, 100 limit switch (door position output portion), 102 body portion, 104 support portion, 106 rocking arm portion, 108 roller portion, 110 arm side contact, 112 body side contact.

Claims (2)

A control system for an elevator that performs reopening control to shift the door to an opening operation under a predetermined condition when the elevator door is in a state where the door is about to close from a fully closed state,
a reopening prohibition range setting unit that sets a reopening prohibition range that prohibits the opening operation of the door within the entire range of the closing position of the door;
a door position output unit that detects a position where the door is about to close, and outputs a reopening prohibition signal when the detected position is within a reopening prohibition range;
A hall button for outputting a car call signal for calling a car at the hall;
When the car call signal is received, one car is assigned according to a predetermined allocation procedure, and after the assigned one car is directed to the landing and lands on the landing, the door opening and closing procedure is followed. a control device for opening and closing the door;
with
The control device is
When receiving the car call signal from the landing button of the landing when the door of the one car that has landed on the landing is in the state of being closed from the fully closed state, for the one of the cars,
determining whether or not the reopen prohibition signal is received from the door position output unit;
When the reopen prohibition signal is not received, the doors are reopened in response to the car call signal, and when the reopen prohibition signal is received, the car call signal from the hall button is invalidated to a predetermined degree. perform control to shift the door to a fully closed state according to the door opening and closing procedure of
The car includes a full state detection unit that detects the load in the car and outputs a full state signal when the load exceeds a predetermined passenger limit load,
Further, the control device
Even if the one car has not received the reopen prohibition signal and the full state signal has not been received, the car other than the one car is already heading to the landing. 1. A door reopening control system for an elevator, wherein when a dodging assignment is performed, the car call signal is invalidated and the doors are moved to a fully closed state according to a predetermined door opening/closing procedure. The reopening prohibition range setting unit is a timing plate provided with a length of the reopening prohibition range along the width direction of the car body,
The door position output unit includes a main body attached to the door, and a swing arm having a roller supported at one end so as to be swingable with respect to the main body and facing the timing plate at the other end. and a switch portion that closes the contact when the roller portion is in contact with the timing plate and opens the contact when the roller portion is separated from the timing plate, wherein the contact is closed. 2. The elevator door reopening control system according to claim 1, wherein the door reopening control system is a limit switch that outputs the reopening prohibition signal.

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