JP2004299875A - Door device of elevator and opening/closing control method for the door device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door device capable of securing the safety of passengers in the opening/closing operation of a door even if any operation is not performed by the passengers. <P>SOLUTION: This door device comprises a touch sensor 4 detecting a contact object in the generally all area of the door 2. When the touch sensor 4 detects the contact object, the opening/closing of the door 2 is stopped or the opening/closing speed of the door 2 is decreased less than a normal speed. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an elevator door device and an opening / closing control method thereof.
[0002]
[Prior art]
The elevator door automatically opens when the car arrives at the elevator landing, and basically closes automatically after a predetermined time has elapsed. The door during the opening / closing operation does not stop unless the open button of the car operation panel or the landing operation panel is pressed or the safety switch is not pressed. Therefore, when people or luggage are likely to be caught or hit by the door that is about to close, the door is closed by pressing the open button on the car operation panel or the landing operation panel or pressing the safety door. Need to be stopped. When a person's hand or baggage is about to be drawn into the door that is about to open, it is necessary to stop the opening movement of the door by pressing the close button of the car operation panel or the landing operation panel.
[0003]
However, there is a case where the user does not know such an operation or pushes the reverse button of the car operation panel or the hall operation panel in a hurry. Therefore, appropriate operations need to be performed in order to ensure the safety of passengers, particularly the safety of children and infants.
[0004]
As a conventional door device for solving such a problem, a door opening button 52 is provided on each of a pair of left and right doors 51 on the landing side, as in a door device 50 shown in FIG. Reference 1).
[0005]
According to this door device 50, since the door opening button 52 is provided on the door 51 itself, the opening and closing operation of the door 51 can be stopped easily, and safety is improved.
[0006]
[Patent Document 1]
JP-A-7-285765
[Problems to be solved by the invention]
However, even in the above-described conventional door device 50, the opening / closing operation of the door 51 cannot be stopped unless the operation of pressing the door open button 52 is performed. Therefore, when the hand is occupied by the baggage, the door open button 52 cannot be operated, and it is not possible to prevent a situation in which the door is caught or hit by the door 51 or pulled into the door pocket.
[0008]
Therefore, the present invention has been made to solve the above-mentioned problem, and an elevator door apparatus and an opening / closing control method thereof that can ensure the safety of the passenger when the door is opened / closed without any operation by the passenger. The purpose is to provide.
[0009]
[Means for Solving the Problems]
A first feature according to the present invention is that a door that is opened and closed at an elevator landing, a touch sensor provided in an area that is a non-contact area when the door is opened and closed, and the door detects when the touch sensor detects a contact object. And a control unit that stops the normal opening / closing operation and controls the opening / closing and stopping of the door or making the opening / closing speed of the door slower than the normal opening / closing speed.
[0010]
In the elevator door device, when a person or the like is in contact with the door, the door performs a door safety operation without performing a normal opening and closing operation. Therefore, the safety of the passenger at the time of opening and closing the door can be ensured without any operation by the passenger.
[0011]
A second feature according to the present invention is a method for controlling opening / closing of an elevator door device, wherein a touch sensor is provided in an area to be a non-contact area when the door is opened / closed, and when the touch sensor detects a contact object, The gist of the present invention is to stop the normal opening / closing operation of the door and make the opening / closing and stopping of the door or the opening / closing speed of the door lower than the normal opening / closing speed.
[0012]
According to this method of controlling the opening and closing of an elevator door device, when a person or the like is in contact with the door, the door performs a door safety operation without performing a normal opening and closing operation. Therefore, the safety of the passenger at the time of opening and closing the door can be ensured without any operation by the passenger.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, details of an elevator door device and an opening / closing control method thereof according to the present invention will be described based on embodiments shown in the drawings.
[0014]
(First Embodiment)
1 to 4 show a first embodiment of an elevator door device according to the present invention. 1 is a front view of the landing side of the elevator, FIG. 2 is a block diagram of a main part of the door device 1A, FIG. 3 is a flowchart at the time of door opening operation, and FIG. 4 is a flowchart at the time of door closing operation.
[0015]
As shown in FIGS. 1 and 2, the door device 1 </ b> A includes a pair of left and right doors 2 provided at a landing of an elevator, and a touch sensor 4 provided outside the door 2.
[0016]
The pair of doors 2 open and close by the driving force of a door motor 9 (shown in FIG. 2). The opening operation of the pair of doors 2 moves in the direction away from each other (in the direction of the arrow in FIG. 1) with the butting surfaces at the closed position as the center positions. The closed position of the pair of doors 2 moves from the open position in a direction approaching each other (a direction opposite to the direction of the arrow in FIG. 1).
[0017]
A pair of left and right vertical frames 5 and a curtain plate 6 are arranged around the pair of doors 2. The inside of the pair of left and right standing frames 5 is a door pocket of each door 2. On one vertical frame 5, a landing-side operation panel 7 is provided. The landing side operation panel 7 is provided with an open button (not shown), a close button (not shown), each floor button (not shown), and the like. The curtain plate 6 is provided with a display unit 8 formed by, for example, a liquid crystal display.
[0018]
The touch sensor 4 includes a plurality of light emitters 4a arranged side by side at the upper end edge and one side end edge of each door 2 and at opposing positions thereof, and juxtaposed at the lower end edge and the other side end edge of each door 2. And a plurality of photodetectors 4b. Optical scanning is sequentially performed between the opposing light emitter 4a and light receiver 4b, and whether or not there is a contact object on the door 2 is detected based on whether or not the light receiver 4b receives light from the light emitter 4a. The position information of the contact object is obtained from the detected X- and Y-axis positions of the light projector 4a and the light receiver 4b. That is, the detection information of the touch sensor 4 includes the presence or absence of a contact object and the position information thereof.
[0019]
The touch sensor 4 is installed substantially in the entire area of the door 2 as a detection area, and substantially the entire area of the door 2 is set as a non-contact area when the door is opened and closed. The non-contact area at the time of opening and closing the door is an area where the door 2 is not opened and closed when a contact object is in contact with the door 2.
[0020]
Next, a control system related to the door opening / closing operation of the door device 1A will be described. As shown in FIG. 2, detection information of the touch sensor 4 is output to the control unit 11 together with operation information from the landing-side operation panel 7 and the in-car operation panel 10. The control unit 11 controls the image signal generation unit 12 and the motor drive unit 13 based on the information. The image signal generation unit 12 outputs an image signal of desired display content to the display unit 8 based on a command from the control unit 11. The motor drive unit 13 outputs a drive signal to the door motor 9 based on a command from the control unit 11. The control unit 11 executes the flowcharts of FIGS. 3 and 4 during the door opening / closing operation.
[0021]
Next, the door opening / closing operation of the elevator will be described with reference to FIGS. As shown in FIG. 3, when an elevator car (not shown) moves up and down and arrives at a target landing (step S1), the output of the touch sensor 4 is checked (step S2). When a person or the like comes into contact with the door 2 and the touch sensor 4 detects a contact object, the stop state of the door 2 is maintained without opening the door 2 (step S3). Then, the display unit 8 displays a message saying "The door is stopped. The door opens when you release your hand." (Step S4).
[0022]
If a person or the like is not in contact with the door 2 when arriving at the landing, the door 2 is opened (step S5). The detection information of the touch sensor 4 is constantly checked even during the opening operation of the door 2 (Step S6), and a message "Stop when touching the door" is displayed on the display unit 8 (Step S7). When the touch sensor 4 detects a contact object during the opening operation of the door 2 (step S6), the opening operation of the door 2 is immediately stopped (step S3). Then, the display unit 8 displays a message saying "The door is stopped. The door opens when you release your hand." (Step S4).
[0023]
When a person or the like that has been in contact with the door 2 moves away from the door 2 and changes to a state in which the touch sensor 4 does not detect a contact object (step S2), the opening operation of the door 2 is restarted (step S5). During the opening operation of the door 2, the detection information of the touch sensor 4 is constantly checked as described above (step S6). Then, when the door 2 is opened to the fully open position (Step S8), the opening operation of the door 2 is stopped (Step S9).
[0024]
As shown in FIG. 4, when the door 2 is fully opened and a predetermined time has elapsed since the door was fully opened, or when the door close button was pressed (step S10), the output of the touch sensor 4 is checked (step S11). ). When a person or the like comes into contact with the door 2 and the touch sensor 4 detects a contact object (step S11), the door 2 is kept stopped without performing the closing operation of the door 2 (step S12). Then, the display section 8 displays the message "The door is stopped. The door opens when you release your hand." (Step S13).
[0025]
If no person or the like is in contact with the door 2 in the fully opened state, the door 2 is closed (step S14). The detection information of the touch sensor 4 is constantly checked even during the closing operation of the door 2 (step S15), and a message "Stop when touching the door" is displayed on the display unit 8 (step S16). When the touch sensor 4 detects a contact object during the closing operation of the door 2, the closing operation of the door 2 is immediately stopped (step S12). Then, the display section 8 displays the message "The door is stopped. The door opens when you release your hand." (Step S13).
[0026]
When the person or the like who has been in contact with the door 2 leaves the door (step S11), the closing operation of the door 2 is restarted (step S14). During the closing operation of the door 2, the detection information of the touch sensor 4 is constantly checked as described above (step S15). Then, when the door 2 is closed to the fully closed position (Step S17), the closing operation of the door 2 is stopped (Step S18). This completes the door opening / closing operation.
[0027]
As described above, in the first embodiment, the touch sensor 4 provided in the area of the door 2 which is a non-contact area when the door is opened and closed, and when the touch sensor 4 detects a contact object, the normal opening and closing operation of the door 2 is stopped. And a control unit 11 for performing a stop operation. Therefore, when a person or the like is in contact with the door 2, the door 2 stops opening and closing without performing the normal opening and closing operation. Therefore, the safety of the passenger at the time of opening and closing the door 2 can be ensured without any operation by the passenger.
[0028]
In particular, in the first embodiment, when a person or the like is in contact with the door 2, the door 2 is not opened or closed at all. Therefore, there is no danger associated with opening and closing the door 2, and the safety of the passenger can be reliably ensured.
[0029]
Further, in the first embodiment, since the display unit 8 for displaying information related to the door safety operation is provided, the occupant recognizes that the door safety operation is performed, that the operation is being performed, the door safety operation canceling method, and the like. Can be done. Therefore, it contributes to the smooth operation of the elevator.
[0030]
Further, in the first embodiment, the non-contact area when the door is opened and closed is substantially the entire area of the door 2, and the touch sensor 4 is provided substantially over the entire area of the door 2. Therefore, the door stop operation is performed even when a person or the like is in contact with any part of the door 2, so that the safety of the occupant can be reliably ensured.
[0031]
As a modification of the first embodiment, when the touch sensor 4 detects a contact object, the door 2 may be opened and closed at a speed lower than the normal opening and closing operation. In this way, when a person or the like is in contact with the door 2, the door 2 opens and closes at a low speed, and danger can be easily avoided. On the other hand, the door 2 is also opened and closed at a low speed. Therefore, the elevator can be operated quickly while ensuring the safety of the door 2.
[0032]
(Second embodiment)
FIGS. 5 and 6 show a second embodiment of the present invention. FIG. 5 is a front view of a landing side of an elevator, and FIG. 6 is a main part circuit block diagram of a door device 1B.
[0033]
In FIG. 5, the door device 1B of the second embodiment is different from that of the first embodiment in that a speaker 20 is provided on the curtain plate 6 instead of the display unit. The speaker 20 announces the display content of the display unit 8, that is, information on the door safety operation.
[0034]
In FIG. 6, a control unit 11 controls an audio signal generation unit 21. The audio signal generation unit 21 outputs an audio signal having desired audio content to the speaker 20 based on a command from the control unit 11. Other configurations are the same as those of the first embodiment, and thus the same components are denoted by the same reference numerals and description thereof will be omitted.
[0035]
In the second embodiment, since information about the door safety operation is announced by the speaker 20, it is possible to make the occupant recognize that the door safety operation is performed, that the operation is being performed, the door safety operation canceling method, and the like. it can. Therefore, it contributes to the smooth operation of the elevator.
[0036]
Further, as a modified example of the first and second embodiments, the display unit 8 and the speaker 20 may be installed together to display information on the door safety operation and make an announcement.
[0037]
In the first and second embodiments, the display unit 8 and the speaker 20 are installed on the curtain plate 6. However, it is needless to say that the display unit 8 and the speaker 20 may be installed at a location other than the curtain plate 6.
[0038]
(Third embodiment)
FIG. 7 shows the third embodiment of the present invention, and is a front view of the landing side of an elevator. In FIG. 7, a door device 1C according to the third embodiment has substantially the same configuration as that of the first embodiment. However, when the lower half of the area where the touch sensor 4 is provided is defined as a danger area S1 (the area hatched by a dashed line in FIG. 7), when the touch sensor 4 detects a contact object other than the danger area S1, a control unit (not shown). ) Causes the door 2 to operate normally. Further, when the touch sensor 4 detects a contact object in the danger area S1, a control unit (not shown) performs a door safety operation (stop opening and closing the door or open and close the door). The other configuration is the same as that of the first embodiment. Therefore, the same components are denoted by the same reference numerals and description thereof will be omitted.
[0039]
According to the third embodiment, the door safety operation (opening / closing stop of door 2 or slow opening / closing of door 2) is performed only when there is a contact object in danger area S1, which is the lower half of door 2. Since there is a high possibility that a child or the like contacts the lower half of the door 2, the safety of the child or the like can be particularly ensured. Therefore, it is possible to quickly operate the elevator while ensuring the safety of a specific passenger or the like.
[0040]
In the third embodiment, the danger area S1 is set in the lower half area of the door 2, but the danger area is appropriately determined in consideration of each condition such as the purpose of use of the elevator and the person in use.
[0041]
When the lower half of the door is used as the danger area as in the third embodiment, the touch sensor 4 may be installed only in the lower half of the door 2. That is, when the dangerous area S1 is fixed, the door 2 may be installed only in the dangerous area S1 and not in the entire area.
[0042]
(Fourth embodiment)
8 to 11 show a fourth embodiment of the present invention. FIG. 8 is a front view of a landing side of an elevator, FIG. 9 is a circuit block diagram of a main part of a door device 1D, and FIG. 10 is a door opening operation. FIG. 11 is a flowchart at the time of door closing operation.
[0043]
As shown in FIGS. 8 and 9, the door device 1D according to the fourth embodiment is different from the door device 1D according to the first embodiment in that the door information of the door opening / closing position sensor 22 together with the detection information of the touch sensor 4 is provided. The open / close position information is output to the control unit 11. Then, an area within a predetermined distance L from the door pocket of the door 2 is set as a danger area S2 (an area hatched by a dashed line in FIG. 8), and the area of the door 2 that becomes the danger area S2 is changed according to the open / close position of the door 2. It is configured to
[0044]
Other configurations in the present embodiment are the same as those in the first embodiment, and thus the same components are denoted by the same reference numerals and description thereof will be omitted.
[0045]
10 and 11, since the outline of the opening / closing operation flow of the door 2 of the fourth embodiment is the same as that of the door opening / closing operation of the first embodiment, a detailed description of the door opening / closing operation based on the flowchart will be given. Is omitted. In the fourth embodiment, the processing of blocks (steps S22, S26, S31, S35) for checking detection information of the touch sensor 4 is different. That is, when the touch sensor 4 detects a contact object, it is also checked whether or not the detection position is in the dangerous area S2. Then, the opening operation of the door 2 is stopped only when the touch sensor 4 detects a contact object and is in the dangerous area S2. For example, even if the contact position of the door 2 at the beginning of the contact is not in the dangerous area S2, if the contact position enters the dangerous area S2 by the opening operation of the door 2, the opening operation of the door 2 is stopped at that point.
[0046]
According to the fourth embodiment, at the time of the opening operation of the door 2, the opening and closing of the door 2 is stopped only when there is a high possibility that the door 2 will be pulled into the door pocket. Therefore, the elevator can be operated quickly while ensuring the safety of the door 2.
[0047]
Instead of stopping the opening and closing of the door 2, the opening and closing speed of the door 2 may be reduced. That is, when there is a contact object in the dangerous area S2, the door safety operation (door opening / closing stop or door slow opening / closing) is performed.
[0048]
In addition, the door 2 may perform the door safety operation by setting the area obtained by combining the fourth embodiment and the third embodiment as the danger areas S1 and S2.
[0049]
Further, in each of the above-described embodiments, the touch sensor 4 is configured by the photoelectric tubes of a large number of light emitters and light receivers. However, when applied to the third embodiment or the fourth embodiment, it is necessary that the contact object can be detected by the XY coordinates.
[0050]
Further, in each of the above embodiments, the present invention is applied to the double door 2, but it is needless to say that the present invention may be applied to a single door.
[0051]
Further, according to each of the above embodiments, the present invention is applied to the landing-side door 2, but it is needless to say that the present invention can be applied to the car-side door. If applied to both the landing side door 2 and the car side door, the safety of passengers is particularly excellent.
[0052]
【The invention's effect】
As described above, according to the present invention, the safety of a passenger at the time of opening and closing a door can be ensured.
[Brief description of the drawings]
FIG. 1 is a front view of a first embodiment of an elevator door device according to the present invention as viewed from a landing side.
FIG. 2 is a main part circuit block diagram of the door device of the first embodiment.
FIG. 3 is a flowchart at the time of a door opening operation according to the first embodiment.
FIG. 4 is a flowchart at the time of a door closing operation in the first embodiment.
FIG. 5 is a front view of an elevator door device according to a second embodiment of the present invention, as seen from the landing side of the elevator.
FIG. 6 is a main part circuit block diagram of a door device according to a second embodiment.
FIG. 7 is a front view of an elevator door device according to a third embodiment of the present invention, as viewed from a landing side of an elevator.
FIG. 8 is a front view of an elevator door device according to a fourth embodiment of the present invention, as viewed from a landing side of an elevator.
FIG. 9 is a main part circuit block diagram of a door device according to a fourth embodiment.
FIG. 10 is a flowchart at the time of a door opening operation in the fourth embodiment.
FIG. 11 is a flowchart at the time of a door closing operation in the fourth embodiment.
FIG. 12 is a front view of a conventional elevator viewed from a landing side.
[Explanation of symbols]
1A to 1D Door device 2 Door 4 Touch sensor 8 Display unit 11 Control unit 20 Speakers S1, S2 Danger zone

Claims (8)

A door that opens and closes at the elevator landing,
A touch sensor provided in an area to be a non-contact area when the door is opened and closed,
When the touch sensor detects a contact object, a control unit that stops the normal opening / closing operation of the door and performs control such that the opening / closing and stopping of the door or the opening / closing speed of the door is slower than a normal opening / closing speed,
An elevator door device comprising: An elevator door device according to claim 1,
An elevator door device, wherein when the touch sensor detects a contact object, information relating to the opening and closing operation of the door after the detection is displayed or announced by voice. An elevator door device according to claim 1 or claim 2,
The non-contact area when the door is opened and closed is substantially the entire area of the door, and the touch sensor is provided substantially over the entire area of the door. An elevator door device according to any one of claims 1 to 3, wherein:
A part of the area where the touch sensor is provided is a specific area, and when the touch sensor detects a contact object outside the specific area, the control unit causes the door to perform a normal operation, and the touch sensor contacts the specific area. The door device for an elevator, wherein upon detecting an object, the control unit performs a door safety operation. An elevator door device according to claim 4,
An elevator door device, wherein an area within a predetermined distance from the door pocket of the door is set as the specific area, and the area of the door that is the specific area is changed according to the opening / closing position of the door. An elevator door device according to any one of claims 1 to 5, wherein:
When the output of the touch sensor changes from a contact object detection state to a non-detection state, the control unit returns the door opening / closing operation from a door safe operation to a normal opening / closing operation. A touch sensor is provided in an area that is a non-contact area when the door is opened and closed, and when the touch sensor detects a contact, the normal opening and closing operation of the door is stopped, and the opening and closing of the door or the opening and closing speed of the door is reduced. An opening / closing control method for an elevator door device, wherein the opening / closing speed is made lower than a normal opening / closing speed. An opening / closing control method for an elevator door device according to claim 7,
An opening / closing control method for an elevator door device, wherein when the touch sensor detects a contact object, information on the opening / closing operation of the door after the detection is displayed or announced by voice.

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