JP4410627B2 - Elevator equipment - Google Patents

Description

  The present invention relates to an elevator apparatus that transports a cart such as a wheelchair in a hospital, and particularly relates to door closing.

The elevator is used not only for healthy people but also for physically disabled people in wheelchairs. In the hospital, beds, stretchers and trolleys are also loaded. In the conventional elevator apparatus that conveys such a carriage, a door opening extension hall button is provided in addition to a normal hall button in consideration of the convenience of the carriage user. If the car responds when the door opening extension hall button is operated, the door opening time To is extended more than usual. The trolley gets on and off in this extended time.
FIG. 7 is a flowchart showing the operation of the conventional elevator apparatus. When the car call or the hall call is registered, the process proceeds from step S51 to step S52, and the car responds to the call. If the call is a door opening extension call in step S53, the door opening time To is set to a time T2 longer than usual in step S54. If the call is a normal call, the door opening time To is set to the normal door opening time T1 in step S55. In step S56, the responding hall call or car call is canceled. In step S57, the door opens when the car is landed. If the door opening time To elapses in step S58 or if the door closing button is operated even before elapse, the door is closed in step S59. It returns to procedure S51 and responds to the next call. When it takes time to get on and off as in the case where a carriage is loaded, the door opening time To is extended in advance.

  In addition, for those who are severely disabled and unable to operate the landing button, they have a non-contact communication IC tag, and the call detection means provided at the landing supplements the non-contact communication IC tag, Let the car respond to that floor. Furthermore, there is also disclosed an elevator management system in which the boarding detection means provided in the car supplements the non-contact communication IC tag to close the door as if the boarding person had a physical disability (for example, patent document). 1). That is, whether or not a physically handicapped person actually boarded is detected by the non-contact communication IC tag without depending on the preset door opening time To.

Japanese Patent Laying-Open No. 2003-48671 (paragraph numbers 15, 16, 17, FIG. 1)

  The conventional elevator apparatus is configured as described above, and in the case of extending the door opening time To when getting on and off the car, it is extended when a plurality of cars get on and off. It may take a longer time than the door opening time To. In such a case, since the door opening time To elapses during getting on and off and the door closing operation is started, it is necessary to press the door opening button. However, since the user of the cart is often away from the car operation panel, it cannot respond quickly. For this reason, there was a problem that the door collided with the carriage.

  Further, even in the elevator management system in which the boarding of the physically disabled person is detected by the non-contact communication IC tag disclosed in Patent Document 1, when boarding is detected, a part of the wheelchair is a door sill. It may be above. In addition, when a plurality of wheelchairs continue to board, boarding is detected by the first one and the door starts to close, so that the following wheelchairs cannot board. In addition, there is a problem that the distance between the wheelchairs is mistaken as the completion of boarding, the door starts to close, and the door collides with the wheelchair.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an elevator apparatus in which a carriage loaded and unloaded on a car does not collide with a door at an entrance / exit.

The elevator apparatus according to the present invention is provided with a door opening extension hall button or a door opening extension car button in addition to the normal hall button or the normal car button, respectively, in the landing and the car, respectively, for the extended door opening time longer than the normal door opening time. Is related to an elevator apparatus that loads and unloads the carriage on the car during the extended door opening time, and is equipped with a transmission means for transmitting individual information to the carriage, and enters the landing Install the receiving means so that individual information from the sending means is received from the landing side to the car beyond the entrance and exit, and the car receiving means is installed in the car and exceeds the entrance and exit. In this way, individual information from the transmitting means is received in the range up to the landing side, and when both the landing receiving means and the in-car receiving means are receiving the same individual information at the same time, the door closing prevention means is activated. Door Prevents Jill's, range hall receiving means and the car in the receiving means receives a signal transmitting means is configured to overlap in a range including an inlet and outlet part by each other each part overlap each other, each of the other portion Is not included in the overlapping range, the other part of the range in which the hall receiving means receives the signal of the transmitting means is in the landing, and the other part of the range in which the in-car receiving means receives the signal of the transmitting means is in the car The door closing prevention means operates when receiving the signal of the transmission means within the overlapping range .

Since this invention is comprised as mentioned above, there exist the following effects.
That is, a hall receiving means for receiving individual information within a range from the landing side to the car beyond the entrance and exit, and a car receiving means for receiving individual information within the range from the inside of the car to the landing side beyond the entrance and exit. When both sides are receiving the same individual information at the same time, the door closing prevention means is activated to prevent the door from closing, so that the door does not collide with the carriage at the entrance / exit. Play.
Even if the hall receiving means and the in-car receiving means receive individual information at the same time, if the individual information is different, the door closing prevention means does not operate and the door closing is executed. That is, there is no carriage at the entrance / exit where the detection ranges of the hall receiving means and the in-car receiving means overlap. Therefore, it is possible to accurately determine whether or not the door is closed by the door closing prevention means and execute the door closing operation.

Embodiments of the present invention will be described below with reference to the drawings. In addition, in each figure, the same code | symbol is attached | subjected to the part which is the same or it corresponds, and duplication of description was omitted.
Embodiment 1 FIG.
1 to 6 show Embodiment 1 of the present invention.
FIG. 1 is a front view of an elevator hall. In the figure, a wall 3 that divides the hoistway from the landing floor 2 is erected on the landing 1 and reaches the landing ceiling 4. A landing doorway 5 is formed in the wall 3 and is opened and closed by a landing door 8. A position indicator 7 is attached to the upper part of the landing entrance 5. Further, a normal hall button 9 is provided on the right wall 3 of the hall entrance 8 mainly for the purpose of use by a healthy person, and the car 20 is called. In the caged car, the landing door 8 is opened for a normal door opening time T1 set in advance as a time required for a healthy person to get on and off.

A door opening extension hall button 10 is provided below the normal hall button 9. This door opening extension hall button 10 is provided mainly for use by a physically handicapped person 12 who uses a wheelchair 13 as a carriage, and the car 20 that is brought in and gets off by the handicapped person 12 on the wheelchair 13. The landing door 8 is opened for the extended door opening time T2 set in advance as the time required for the vehicle. The extended door opening time T2 is naturally longer than the normal door opening time T1. An IC tag 14a is attached to the front frame of the wheelchair 13, and an IC tag 14b is attached to the backrest portion. Hereinafter, the generic term “IC tag 14”. This IC tag 14 is all attached to a carriage that uses an elevator, and functions as a transmission means for transmitting unique individual information for identifying each carriage by microwaves and transmitting it to an external device.
A landing antenna 15 a that receives individual information transmitted from the IC tag 14 is attached to the landing ceiling 4 immediately before the landing entrance 5. A landing antenna 15b and a landing antenna 15c are attached to the left and right of the landing antenna 15a, respectively, and receive individual information within a range close to the vicinity of the landing doorway 5. Hereinafter, it will be referred to as “a landing antenna 15” when collectively referred to.

  FIG. 2 is a front view of the car as viewed from the inside of the elevator car 20 in the direction of the car entrance 25. In the figure, the car 20 has a sleeve wall 23 erected from the car floor 21 on the left and right sides of the car entrance 25 and reaches the car ceiling 22. The car entrance 25 is opened and closed by a car door 26. A car operation panel 27 is attached to one sleeve wall 23. A normal car button 28 for designating a destination floor of the car 20, a door closing button 29 and a door opening button 30 are attached to the car operation panel 27. The normal car button 28 is provided mainly for the purpose of use by a healthy person, and when the car 20 arrives at the destination floor, the car 20 opens the car door 26 for the normal door opening time T1.

The left and right side walls 24 are provided with a car operation panel 32 for the physically handicapped. The car operation panel 32 for the physically handicapped person is provided mainly for use by the handicapped person 12 using the wheelchair 13, and is provided with a door opening extension car button 33, a door closing button 34, and a door opening button 35. It has been. When the destination floor is designated by the door opening extension car button 33 and arrives, the car 20 opens the car door 26 for the extended door opening time T2.
In addition, an in-car antenna 36a and an in-car antenna 36b are attached to the car ceiling 22 from the car doorway 25 in the depth direction. Hereinafter, the generic term “in-car antenna 36” is used.
Furthermore, a speaker 38 is attached to the car ceiling 22 so that passengers of an elevator using the wheelchair 13 can be smoothly conveyed by playing a guidance broadcast.

FIG. 3 is a cross-sectional view of the elevator hoistway as seen from the section taken along line III-III in FIG. The figure shows a case where the physically handicapped person 12 gets into the car 20 from the hall 1 with the wheelchair 13. The landing antenna 15a installed on the landing ceiling 4 can receive individual information from the IC tag 14 in the reception range 15sa, the landing antenna 15b in the reception range 15sb, and the landing antenna 15c in the reception range 15sc, respectively. Hereinafter, the generic term “reception range 15 s” is used.
The in-car antenna 36a can receive individual information from the IC tag 14 in the receiving range 36sa, and the in-car antenna 36b can receive in the receiving range 36sb. Hereinafter, the generic name is “reception range 36 s”.

Here, the adjacent reception ranges 15s and 36s overlap each other. Therefore, the wheelchair 13 is captured by one of the landing antennas 15 or the in-car antenna 36 in the entire area from the landing 1 near the landing entrance 5 to the inside of the car 20 via the IC tag 14. In particular, the reception range 15sa of the landing antenna 15a extends to a range that extends beyond the landing doorway 5 and the car doorway 25 and into the car 20. Further, the reception range 36sa of the car antenna 36a extends to the range from the car entrance 25 and the hall entrance 5 to the hall 1.
Accordingly, the range where the reception range 15sa and the reception range 36sa overlap includes both the landing entrance 5 and the car entrance 25, and includes the open / close paths of the doors 8 and 26 that open and close the entrances 5 and 25. Therefore, the overlapping range is the door closing prevention range 37. When the wheelchair 13 is captured in the door closing prevention range 37, the door closing is not performed.

Whether or not the wheelchair 13 is captured in the door closing prevention range 37 is detected by whether or not both the hall antenna 15a and the car antenna 36a are receiving the same individual information at the same time. Therefore, even if both the hall antenna 15a and the car antenna 36a receive the individual information at the same time, if the individual information is different, it is not in the door closing prevention range 37. For example, the wheelchair 13-2 is in the door closing prevention range 37.
However, if the wheelchair 13-1 and the wheelchair 13-3 are different, the wheelchair 13-1 is captured by the landing antenna 15a and at the same time the wheelchair 13-3 is captured by the car antenna 36a, but the individual information is different. Therefore, neither is the door closing prevention range 37.

FIG. 4 is a block diagram of an electric circuit of the elevator. The operation signal of the hall button 9 on each floor is registered in the normal hall call registration circuit 43 of the elevator control panel 40. Similarly, the operation signal of the door opening extension hall button 10 is registered in the door opening extension hall call registration circuit 44. The signals registered in these are transmitted to the lift control circuit 41, and the registration is canceled when the car 20 responds.
The operation signal of the car operation panel 27 is registered in the normal car call registration circuit 45 of the elevator control panel 40. Similarly, the operation signal of the door opening extension car button 33 of the car operating panel 32 for the physically handicapped used mainly by wheelchair users is registered in the door opening extension car call registration circuit 46. The signals registered in these are transmitted to the lift control circuit 41, and the registration is canceled when the car 20 responds.

The hall antenna 15 on each floor is connected to the switching circuit 47, and the hall antenna 15 on the floor to which the car 20 responds is connected to the IC tag reader 48. The IC tag reader 48 reads the individual information received by the hall antenna 15 and outputs it to the tag position detector 49.
The in-car antenna 36 is connected to the in-car antenna connection circuit 50, and the in-car antenna 36 is connected to the IC tag reader 51 every time the car 20 answers a call. The IC tag reader 51 reads the individual information received by the car antenna 36 and outputs it to the tag position detector 52.

The tag position detectors 49 and 52 associate the tag position with the individual information and output it to the door closing control circuit 42. The door closing control circuit 42 sets the door opening time To and whether or not the IC tag 14 is detected within the door closing prevention range 37, that is, whether or not the wheelchair 13 is on the open / close path of the doors 8 and 26. The door closing motor 39 is energized and the door closing operation is performed. When the doors 8 and 26 are completely closed, the door switch 18 is closed.
Further, when the IC tag 14 is detected within the door closing prevention range 37 and a predetermined time has elapsed, the broadcasting means 53 is operated to broadcast guidance to the speaker 38 of the car 20. Furthermore, when a long time has passed, the individual information detected in the door closing prevention range 37 at that time is recorded by the recording means 54.

  FIG. 5 is a block diagram showing in detail a part of the electric circuit of the elevator. When the elevator control circuit 41 detects a call to be answered by the car 20, the response relay contact 41a (k) on the response floor is closed and the hall antenna connection circuit 47 (k) is energized. By this energization, the switching elements 47a, 47b, 47c are conducted, and the hall antennas 15a, 15b, 15c on the response floor are connected to the IC tag readers 48a, 48b, 48c, respectively, and individual information is read. The tag position detector 49 associates the IC tag readers 48a, 48b, 48c with the individual information and outputs the result to the door closing control circuit 42.

  When the response relay contact 41a (k) is closed, the car antenna connection circuit 50 is also energized via the diode 41b (k). By this energization, the switching elements 50a and 50b are conducted, and the car antennas 36a and 36b are connected to the IC tag readers 51a and 51b, respectively, and the individual information is read. The tag position detector 52 associates the IC tag readers 51 a and 51 b with the individual information and outputs the result to the door closing control circuit 42.

  In the door closing control circuit 42, the door opening time setting circuit is operated based on the signals of the call buttons 9, 10, 28, 33 and the detection result of the tag position detector 52 to set the door opening time To to the normal door opening time. Set to T1 or extended door opening time T2. When the IC tag 14 is captured in the door closing prevention range 37, the door closing prevention circuit is operated to open the doors 8 and 26.

FIG. 6 is a flowchart showing the operation of the door closing control circuit 42. When the car 20 reaches a predetermined distance before the floor 2 in step S11, it is checked in step S11, step S19, and step S24 whether a call to be answered is registered.
If it is detected in step S11 that a call is registered in the door opening extension hall call registration circuit 44, the response of the car 20 is determined in step S12 and the response relay contact 41a (k) is closed. By this closing, the process proceeds to step S13, and the hall antenna 15 and the car antenna 36 are connected to the IC tag readers 48 and 51. In step S14, it is checked whether the IC tag 14 exists in the hall 1 from the result of the IC tag reader 48. If it does not exist, it is determined that the wheelchair 13 does not exist, and the process proceeds to step S19.

  If the IC tag 14 is present at the hall 1, the process proceeds to step S <b> 15 to check whether a call is registered in the door opening extension car call registration circuit 45. If registered, the process proceeds to step S16, and it is checked from the result of the IC tag reader 51 whether the IC tag 14 exists in the car 20. If it exists, the door opening time To is set to the longest time T4 corresponding to the total time of the time required for the wheelchair 13 to get off from the car 20 to the landing 1 and the time required for getting in at step S17. If it is determined in step S16 that the IC tag 14 does not exist, or if the door opening extension car call is not registered in step S15, the process proceeds to step S18, and the time corresponding to the time required for the wheelchair 13 to get into the car 20 The door opening time To is set at T2.

If the call is not registered in the door opening extension hall call registration circuit 44 in step S11, it has been registered, but if the IC tag 14 does not exist in hall 1 in step S14, the process proceeds to step S19. .
When it is detected in step S19 that a call is registered in the door extension car call registration circuit 46, the response of the car 20 is determined in step S20 and the response relay contact 41a (k) is closed. By this closing, the hall antenna 15 and the car antenna 36 are connected to the IC tag readers 48 and 51 in step S21. In step S22, it is checked whether the IC tag 14 exists in the car 20 from the result of the IC tag reader 51. If it does not exist, it is determined that the wheelchair 13 does not exist, and the process proceeds to step S27.
When the IC tag 14 exists in the car 20, the process proceeds to step S23, and the door opening time To is set at a time T3 corresponding to the time required for the wheelchair 13 to get off the car 20.

If it is detected in step S19 that no call is registered in the door extension car call registration circuit 46, the process proceeds to step S24, and a call to be answered to the normal hall call registration circuit 43 and the normal car call registration circuit 45 is received. Check if it is registered. If not registered, the process returns to step S11. That is, the call to be answered is not registered in the hall 1 approaching immediately before.
When a call to be answered is registered in the normal hall call registration circuit 43 and the normal car call registration circuit 45, the response of the car 20 is determined in step S25 and the response relay contact 41a (k) is closed. . By this closing, the hall antenna 15 and the car antenna 36 are connected to the IC tag readers 48 and 51 in step S26. Since neither the door opening extension hall call nor the door opening extension car call has been registered in step S11 and step S19, the process moves to step S27 together with the case where it is determined that there is no IC tag 14 in step S22. The time To is set to a time T1 corresponding to the time required for a healthy person to get on and off.

  When the door opening time To is set in step S17, step S18, step S23 and step S27 according to each situation, first, in step S28, the hall call and car call of the hall 1 to which the car 20 responds are canceled. . When the car 20 reaches the floor in step S29, the doors 8 and 26 are opened. In step S30 and step S31, when the door opening time Td after the doors 8 and 26 are opened becomes the door opening time To or the door closing buttons 29 and 34 are operated, the process proceeds to step S32.

In step S32, it is checked by the tag position detectors 49 and 52 whether or not the IC tag 14, that is, the wheelchair 13 exists in the door closing prevention range 37.
That is, if both the individual information read by the IC tag reader 48a detected by the tag position detector 49 and the individual information read by the IC tag reader 51a detected by the tag position detector 52 are the same, the door is closed. The wheelchair 13 is present in the blocking range 37, and the process proceeds to step S34.

  If the IC tag reader 48a and the IC tag reader 51a are not reading individual information, or if they are being read but are not the same, the wheelchair 13 does not exist in the door closing prevention range 37, and the procedure moves from step S32 to step S33. , 26 is instructed to return to step S11. When the door is closed, the door switch 18 is closed, and the signal is input to the lift control circuit 41 so that the car 20 moves up and down.

  When the wheelchair 13 is present in the door closing prevention range 37 and the process proceeds from step S32 to step S34, the number of wheelchairs 13 existing in the area within the car 20 excluding the door closing prevention range 37 is counted. That is, in FIG. 5, the number of different pieces of individual information among the pieces of individual information read by the IC tag readers 51a and 51b is counted. Further, the number “1” of the wheelchairs 13 existing in the door closing prevention range 37 is subtracted from the counted value to obtain the number in the car. If the number of cars in the car is not the specified value, the process moves from step S35 to step S36, and a guidance broadcast is made so as to "climb into the car 20 and escape from the door closing prevention range 37". If the number of cars in the car has already reached the specified value and the wheelchair 13 existing in the door closing prevention range 37 cannot be boarded, the process proceeds to step S37, and a guidance broadcast prohibiting boarding is performed and the process proceeds to step 38.

  In step 38, it is checked whether or not the door opening time Td after the doors 8 and 26 are opened has reached the longest door opening time T4. If not, the process returns to step S32. That is, the guidance broadcast in step S36 or S37 is repeated. If the door opening time T4 has been reached in step 38, the process moves to step S39, and a warning message for the removal instruction is issued to exclude the wheelchair 13 from the door closing prevention range 37, and the door opening time Td is set in step S40. After recording that the opening time T4 has been exceeded, the process returns to step S11. Thereafter, the above process is repeated from the step S11.

  According to the first embodiment, the range where the reception range 15sa and the reception range 36sa overlap is the door closing prevention range 37. This door closing prevention range 37 includes opening / closing paths of the doors 8 and 26 that open and close the entrances 5 and 25. Therefore, when the wheelchair 13 exists in the door closing prevention range 37, the doors 8 and 26 are not closed, so that the doors 8 and 26 do not collide with the wheelchair 13.

Further, since the individual information of the IC tag 14 is read, both the hall antenna 15a and the car antenna 36a receive the same individual information at the same time as to whether or not the wheelchair 13 is captured in the door closing prevention range 37. It can be easily detected depending on whether or not.
Furthermore, the number of cars 20 in the car 20 counted from the individual information of the wheelchair 13 received by the car antenna 36 has reached a predetermined value, but the wheelchair 13 tries to get into the door closing prevention range 37. When the door closing prevention means is operating continuously, the guidance broadcast with the content of prohibiting boarding has been made, so it is possible to eliminate the inefficiency of time and make smooth operation possible. .

Furthermore, when the wheelchair 13 is present in the door closing prevention range 37 and the door opening time Td exceeds the longest door opening time T4, a warning broadcast is made so that the wheelchair 13 is quickly removed from the door closing prevention range 37. Since this is done, smooth operation is possible as well.
Furthermore, when the wheelchair 13 exists in the door closing prevention range 37 and the door opening time Td exceeds the longest door opening time T4, the fact is recorded. The time To can be reset to a time that matches the actual situation.

  In the first embodiment, the cart transported by the elevator has been described as a wheelchair. However, the present invention is not limited to this, and the present invention can be similarly applied to a bed, a stretcher, or a trolley cart.

1 is a front view of a hall of an elevator apparatus according to Embodiment 1 of the present invention. The front view in a cage | basket | car seen from the inside of the cage | basket | car of the elevator apparatus in Embodiment 1 of this invention looked at the cage | basket entrance / exit. The cross-sectional view of the hoistway of the elevator apparatus which looked at the cross section shown by the III-III line in FIG. The block diagram of the electric circuit of the elevator apparatus in Embodiment 1 of this invention. The block diagram which shows a part of electric circuit of the elevator apparatus in Embodiment 1 of this invention in detail. The flowchart which shows the door closing operation | movement in Embodiment 1 of this invention. The flowchart which shows the door closing operation | movement of the conventional elevator apparatus.

Explanation of symbols

  1 landing, 2 landing floor, 3 walls, 4 landing ceiling, 5 landing entrance, 7 position indicator, 8 landing door, 9 landing button, 10 door extension extended landing button, 12 disabled person, 13 wheelchair, 14 IC tag, 15 landing antenna, 15s reception range, 18 door switch, 20 car, 21 car floor, 22 car ceiling, 23 sleeve wall, 24 side wall, 25 car doorway, 26 car door, 27 car operation panel, 28 normal car button, 29 doors Close button, 30 door open button, 31 car position indicator, 32 car operation panel for handicapped person, 33 door open extension car button, 34 door close button, 35 door open button, 36 antenna in car, 36s reception range, 37 Door closing prevention range, 38 speakers, 39 door closing motor, 40 elevator device, 41 lift control circuit, 42 door closing Circuit, 43 normal hall call registration circuit, 44 door open extension hall call registration circuit, 45 normal car call registration circuit, 46 door open extension car call registration circuit, 47 switching circuit, 48 IC tag reader, 49 tag position detector, 50 car Inner antenna connection circuit, 51 IC tag reader, 52 tag position detector, 53 broadcast means, 54 recording means.

Claims (4)

A normal landing button provided at the landing to call the car, a door opening extended landing button provided at the landing to be operated when the carriage is put on the car, and the above-mentioned car provided in the above-mentioned car. A normal car button for designating the destination floor of the car and a door extension extended car button for designating the destination floor of the cart mounted in the car are provided, and the normal landing button or the normal car button is operated. When the door opening extension hall button or the door opening extension car button is operated, the door is opened for an extended door opening time longer than the normal door opening time. In such an elevator device,
A transmitting means attached to each of the carts for transmitting individual information;
A hall receiving means for receiving a signal of the transmitting means within a range from the hall to the inside of the car beyond the entrance and exit from the hall;
In-car receiving means that is installed in the car and receives the signal of the transmitting means in the range from the inside of the car to the landing side beyond the entrance and exit,
A door closing preventing means that operates when the hall receiving means and the in-car receiving means are simultaneously receiving the same individual information to prevent the door from closing ;
The range in which the hall receiving means and the in-car receiving means receive the signal of the transmitting means overlaps in a range including the entrance / exit part by overlapping each other, and each other part is the overlapping The other part of the range in which the hall receiving means receives the signal of the transmitting means is not included in the range to be received, the other part of the range in which the in-car receiving means receives the signal of the transmitting means Each part extends into the above cage,
The door closing prevention means is an elevator apparatus that operates when the signal of the transmission means is received within the overlapping range .   The elevator apparatus according to claim 1, wherein the number of cars in the car counted from the individual information of the car received by the car receiving means has reached a predetermined value, and the car is located at the entrance / exit. An elevator apparatus provided with broadcasting means for performing guidance broadcasting with the content of prohibiting boarding when the door closing prevention means is present.   2. The elevator apparatus according to claim 1, wherein when the carriage is present at the entrance and exit portion and the door closing prevention means is activated and the door opening time exceeds a predetermined time, the withdrawal of the carriage at the entrance and exit portion is performed. An elevator apparatus provided with a broadcasting means for broadcasting a warning of the content of ordering.   In the elevator apparatus according to claim 1, when a door is present at the doorway and the door closing prevention means is activated and the door opening time exceeds a predetermined time, recording means for recording the fact is provided. Elevator equipment provided.

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