JP2007290852A - Safety device for elevator door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a safety device for an elevator door capable of informing users including a handicapped person having trouble in the sense of hearing of opening and closing situation of a car door and preventing the users from being trapped into opening and closing of the car door. <P>SOLUTION: A fog generator 3, a water tank 4 for supplying water into the fog generator 3, a projector 5, and an image enlarging device 6 are provided in an upper part of a car 1. The fog generator 3 generates fog from water. The fog generator 3 injects an air stream containing fog through a discharge port provided in a ceiling part of the car 1 into the car 1 so as to cover a doorway of the car 1. The fog generator 3 injects fog into the car 1 and forms a screen 3a of fog in the vicinity of the doorway of the car 1 by adjusting density and thickness of fog to be injected. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a safety device for an elevator door that informs a user in the car of the opening / closing state of the car door.

  In a conventional elevator door safety device, a light beam is emitted from a light projector provided in the lower part of the car to a light receiver provided in the upper part of the car along the car door, and the light beam is emitted when the car door starts to open and close. When an obstacle including the user is detected after being blocked, a voice announcement for notifying the user of the opening / closing start of the car door is output (for example, see Patent Document 1).

JP 2005-96899 A

  In the conventional elevator door safety apparatus as described above, since the user is informed of the opening / closing status of the car door by voice announcement, the opening / closing status of the car door cannot be notified to the hearing impaired person.

  The present invention has been made to solve the above-described problems, and can notify the user including the hearing impaired person of the opening / closing state of the car door, and the user is drawn to open / close the car door. It is an object of the present invention to provide an elevator door safety device that can reduce this.

  The elevator door safety device according to the present invention has a spraying portion capable of forming a mist screen in the vicinity of the entrance of the car by jetting the mist into the car, and the operation state of the car including the opening / closing state of the car door. Accordingly, a screen control unit for forming a screen in the spray unit is provided.

  In the elevator door safety device according to the present invention, a fog screen is formed in the vicinity of the doorway of the car according to the operation state of the car including the opening / closing state of the car door. By touching the door, it is possible to inform the user including the hearing impaired about the opening / closing status of the car door, and by attracting the user's attention, it is possible to reduce the number of users being drawn into the opening / closing of the car door. be able to.

The best mode for carrying out the present invention will be described below with reference to the drawings.
Embodiment 1 FIG.
1 is a block diagram showing an elevator door safety device according to Embodiment 1 of the present invention. FIG. 2 is a front view showing a state in which the screen 3a of FIG. 1 is formed.
In the figure, a car 1 that moves up and down in a hoistway is provided with a door 2 that opens and closes an entrance of the car 1. Further, a mist generating device 3 as a spray unit, a water tank 4 for supplying water to the mist generating device 3, a projector 5 as an image projecting unit, and an image enlarging device (mirror) 6 are provided at the upper part of the car 1. ing.

  The fog generating device 3 generates fog from water. The mist generating device 3 then blows an airflow (air) containing mist from the outlet provided in the ceiling of the car 1 into the car 1 so as to cover the entrance / exit of the car 1. Further, the mist generation device 3 ejects the mist into the car 1 and adjusts the density and thickness of the mist to be ejected, thereby forming a mist screen 3 a in the vicinity of the entrance / exit of the car 1. The fog screen 3a is a fog screen (registered trademark).

  The projector 5 projects an image toward the image enlarging device 6. The image projected by the image enlarging device 6 is an image for informing the user in the car 1 of the driving situation of the car 1. The video enlargement device 6 enlarges the video received from the projector 5 and guides the video to the screen 3a. That is, the video output from the projector 5 is enlarged by the video enlargement device 6 and projected onto the screen 3a.

  At the bottom of the car 1, a collecting device 7 is provided as a collecting unit. The collector 7 sucks air in the car 1 from a suction hole provided in the floor of the car 1. Moreover, the collection | recovery device 7 collect | recovers the water | moisture contents of the mist which formed the screen 3a by inhaling the air in the cage | basket | car 1. FIG. Further, the recovery device 7 is connected to the water tank 4 by a pipe provided outside the car 1. Furthermore, the collection device 7 sends the collected mist moisture to the water tank 4 via the pipe.

  A screen control unit (information control device) 8 as a screen control unit is connected to the fog generating device 3 and the projector 5. The screen control unit 8 receives information on a video to be projected on the screen 3a from the information distribution unit 9 in which a plurality of video information is stored. Further, the screen control unit 8 receives car operation information, which is information on the operation status of the car 1, from an elevator control unit (elevator control device) 10 that controls the operation of the car 1. Further, the screen control unit 8 controls the formation of the screen 3 a by the fog generating device 3 and the projection of the image by the projector 5.

  Here, the screen control unit 8 and the elevator control unit 10 can be configured by a computer (not shown) having an arithmetic processing unit (CPU), a storage unit (ROM, RAM, etc.) and a signal input / output unit, respectively. . The storage unit of the computer of the screen control unit 8 stores a program for realizing the operation of the screen control unit 8. A program for realizing the operation of the elevator control unit 10 is stored in the storage unit of the computer of the elevator control unit 10.

  Next, the operation will be described. First, the operation of the screen control unit 8 will be described. When the screen control unit 8 detects that the operation of the car 1 is started based on the car operation information received from the elevator control unit 10, the screen control unit 8 forms the screen 3 a on the fog generating device 3 and displays an image on the projector 5. Project. On the other hand, when the screen control unit 8 detects that the car 1 has arrived at the destination floor based on the car operation information received from the elevator control unit 10, the screen control unit 8 causes the fog generating device 3 to stop forming the screen 3a and 5 stops the image projection.

  Next, the operation of the elevator control unit 10 will be described. FIG. 3 is a flowchart showing the operation of the elevator control unit 10 of FIG. In the figure, first, the elevator control unit 10 confirms whether or not a call registration is received from a user (step S1), and waits until a call registration is received. When the call registration is received from the user, the elevator controller 10 checks whether the stop floor of the car 1 is different from the registration floor (call registration floor) (step S2).

  When the stop floor and the registered floor of the car 1 are the same, the elevator control unit 10 opens the door 2 to get on the user (step S5) and until the destination floor is registered by the user's operation. Wait (step S6). When the stop floor of the car 1 is different from the registration floor, the elevator control unit 10 moves the car 1 up and down to the registration floor (step S3), and detects that the car 1 has arrived at the registration floor (step S4). Then, the door 2 is opened to get on the user (step S5), and the process waits until the destination floor is registered by the user's operation (step S6).

  When the destination floor is registered, the elevator control unit 10 starts the operation of the car 1 to the destination floor, sends the car operation information to the screen control unit 8, and notifies the screen control unit 8 of the start of the operation of the car 1. As a result, the fog generating device 3 starts forming the screen 3a via the screen control unit 8 (step S7), and the projector 5 displays an image on the screen 3a (step S8). Then, the elevator control unit 10 confirms whether the car 1 has arrived at the destination floor (step S9), and informs the screen control unit 8 that the operation of the car 1 is continued until the car 1 arrives. The operation of the control unit 8 is continued.

  When the car 1 arrives at the destination floor, the elevator control unit 10 sends the car operation information to the screen control unit 8, and notifies the screen control unit 8 of the arrival of the car 1, whereby the projector 5 is connected via the screen control unit 8. The display of the video on the screen 3a is stopped (step S10), and the fog generating device 3 is stopped from forming the screen 3a (step S11). And the elevator control part 10 opens the door 2 in order to make a user get off, waits for a predetermined time (step S12), and confirms whether the other destination floor is registered (step S13).

  When the destination floor is registered, the elevator control unit 10 drives the car 1 to the destination floor, sends the car operation information to the screen control unit 8, causes the screen control unit 8 to control the formation of the screen 3a, Control the display of. If the destination floor is not registered, the elevator control unit 10 waits until call registration is received.

  In the elevator door safety device as described above, a fog screen is formed in the vicinity of the entrance of the car according to the operating condition of the car including the opening / closing state of the car door. By touching the mist screen, users including the hearing impaired can be notified of the start of the car door opening, and the user's attention will be reduced to reduce the possibility of being drawn into the door opening. Can do.

  Moreover, since the collection device collects the mist that forms the screen and sends the moisture of the mist to the water tank, the water for generating the mist can be circulated.

Embodiment 2. FIG.
Next, a second embodiment of the present invention will be described. FIG. 4 is a configuration diagram illustrating an elevator door safety device according to the second embodiment. In the figure, the recovery device 7 is monitored by the turbulence detection unit 11 for the mist recovery status (air intake status). The turbulence detection unit 11 detects the mist collection turbulence (for example, a decrease in the water recovery rate) by the collector 7 by monitoring the mist collection status. When the disturbance detection unit 11 detects the disturbance of the fog collection, the disturbance detection unit 11 determines that the screen 3a is blocked by the obstacle including the user, and sends an obstacle detection signal to the elevator control unit 10.

  When the elevator control unit 10 receives the obstacle detection signal from the disturbance detection unit 11, the elevator control unit 10 determines that an obstacle exists in the vicinity of the door 2. In addition, when the elevator control unit 10 receives an obstacle detection signal from the disturbance detection unit 11, the elevator control unit 10 sets the door 2 to open. Then, when the obstacle detection signal from the disturbance detection unit 11 is interrupted, the elevator control unit 10 sends a door opening command to the door opening / closing control unit 12 that controls the opening / closing of the door 2 to open the door 2. Other configurations are the same as those in the first embodiment.

  Next, the operation will be described. FIG. 5 is a flowchart showing the operation of the elevator control unit 10 of FIG. In the figure, first, the elevator control unit 10 checks whether or not the destination floor is registered by the user's operation (step S21), and waits until the destination floor is registered by the user's operation. When the destination floor is registered, the elevator control unit 10 sends the car operation information to the screen control unit 8, and notifies the screen control unit 8 of the start of operation of the car 1, thereby generating fog through the screen control unit 8. The apparatus 3 starts to form the screen 3a (step S22), and the projector 5 displays an image on the screen 3a (step S23).

  When the elevator control unit 10 detects that the car 1 has arrived at the destination floor (step S24), the elevator control unit 10 confirms the state of whether or not the obstacle detection signal is received from the disturbance detection unit 11, thereby detecting the disturbance detection unit. It is confirmed whether 11 has detected the disturbance of fog collection (step S25). If the turbulence detection unit 11 has not detected any turbulence, the elevator control unit 10 sends a door opening command to the door opening / closing control unit 12 as it is to start opening the door 2 (step S26). On the other hand, when the disturbance detection unit 11 detects the disturbance, the elevator control unit 10 waits until the obstacle detection signal from the disturbance detection unit 11 is interrupted. When the obstacle detection signal from the disturbance detection unit 11 is interrupted, the elevator control unit 10 sends a door opening command to the door opening / closing control unit 12 to start opening the door 2 (step S26).

  Then, the elevator control unit 10 sends the car operation information to the screen control unit 8 and informs the screen control unit 8 of the arrival of the car 1, thereby allowing the projector 5 to display the image on the screen 3 a via the screen control unit 8. The display is stopped (step S27), the fog generating device 3 is stopped from forming the screen 3a (step S28), and the user waits for a predetermined time to get on and off the car 1 (step S29). When the predetermined time has elapsed, the elevator control unit 10 starts closing the door 2 by sending a door closing command to the door opening / closing control unit 12 (step S30), and the other destination floor is registered by the user's operation. Wait until.

  In the elevator door safety apparatus as described above, the turbulence detection unit monitors the mist collection status and can detect the mist collection turbulence, so that obstacles in the vicinity of the door including the user can be detected.

  Further, in the conventional elevator door safety device, the obstacle detection range near the door is limited by the laser light irradiation range and the light receiving range. However, in the elevator door safety device as described above, the fog recovery is disturbed. Since the obstacle near the door is detected, the limitation of the laser light irradiation range and the light receiving range is eliminated, so that the obstacle detection range can be expanded.

Embodiment 3 FIG.
Next, a third embodiment of the present invention will be described. FIG. 6 is a front view showing a projection state of an image on the screen 3a according to the third embodiment. In the figure, when the screen control unit 8 confirms that the turbulence detection unit 11 has detected turbulence in fog collection based on the car operation information from the elevator control unit 10, the screen control unit 8 displays an image of a caution message on the projector 5. The caution message is character information for notifying the user in the car 1 that the door 2 has been opened. For example, the caution message is character information such as “Door opens. Please leave the door.”

  In addition, when the screen control unit 8 confirms that the disturbance detection unit 11 has detected the disturbance of fog collection, the screen control unit 8 causes the audio output unit (speaker) 13 that outputs audio into the car 1 to output a caution announcement. The notice of caution is voice information for notifying the user in the car 1 that the door 2 is opened, for example, “voice is open. Please leave the door”. Other configurations are the same as those of the second embodiment.

  Next, the operation will be described. In the elevator control unit 10 according to the third embodiment, the operation after confirming that the elevator control unit 10 according to the second embodiment has detected the disturbance of the fog collection (NO direction in step S25 shown in FIG. 5) is different. Here, only differences from the second embodiment will be described. FIG. 7 is a flowchart showing the operation of the elevator control unit 10 according to the third embodiment. In the figure, the elevator control unit 10 confirms whether or not the turbulence detection unit 11 has detected a turbulence by confirming whether or not the obstacle detection signal is received from the turbulence detection unit 11.

  When the disturbance detection unit 11 detects the disturbance, the elevator control unit 10 sends the car operation information to the screen control unit 8 to notify the screen control unit 8 that the disturbance detection unit 11 has detected the disturbance. By notifying the screen control unit 8 that the disturbance detection unit 11 has detected the disturbance, the elevator control unit 10 causes the audio output unit 13 to output a caution announcement via the screen control unit 8 (step S31). ), A warning message is displayed on the projector 5 (step S32). Then, the elevator control unit 10 stands by until the obstacle detection signal from the disturbance detection unit 11 is interrupted. Other operations are the same as those in the second embodiment.

  In the elevator door safety device as described above, a caution message is displayed on the mist screen when a mist collection disturbance is detected, so that the user can visually recognize the caution message. The user can be notified of the opening of the door, and the user's attention can be alerted.

  Further, when a mist collection disturbance is detected, a caution announcement is output in the car, so that it is possible to notify the start of the door opening even if the user is visually impaired.

  In the first to third embodiments, the fog generating device 3 is disposed at the upper part of the car 1, the collecting device 7 is disposed at the lower part of the car 1, and the screen 3 a is formed from the upper part to the lower part of the car 1. However, the present invention is not limited to this example, and the mist screen may be formed in any direction.

  In the first to third embodiments, the screen 3a is formed according to the opening of the door 2, but a fog screen may be formed according to the start of closing the car door. Similarly, a warning message and a warning announcement may be output in response to the start of closing the car door.

It is a block diagram which shows the safety device of the elevator door by Embodiment 1 of this invention. It is a front view which shows the formation state of the screen of FIG. It is a flowchart which shows operation | movement of the elevator control part of FIG. It is a block diagram which shows the safety device of the elevator door by Embodiment 2 of this invention. It is a flowchart which shows operation | movement of the elevator control part of FIG. It is a front view which shows the projection state of the image | video on the screen by Embodiment 3 of this invention. It is a flowchart which shows operation | movement of the elevator control part by Embodiment 3 of this invention.

Explanation of symbols

  1 car, 2 doors (car door), 3 fog generator (spraying unit), 3a screen (fog screen), 5 projector (video projection unit), 7 collector (collecting unit), 8 screen control unit, 10 elevator Control part, 11 Disturbance detection part, 13 Sound output part.

Claims (5)

By spraying the mist into the car, a spray screen that can form a fog screen in the vicinity of the doorway of the car, and the screen at the spraying part according to the operation status of the car including the opening / closing status of the car door. A safety device for an elevator door, comprising a screen control unit to be formed. The elevator door according to claim 1, further comprising: a collecting unit that collects the mist that forms the screen by sucking air in the car and sends moisture of the collected mist to the spraying unit. Safety equipment. When the mist recovery state is detected by monitoring the mist recovery state by the recovery unit, and when the mist recovery turbulence is detected, an obstacle detection signal for stopping the opening and closing of the car door is transmitted. The safety device for an elevator door according to claim 2, further comprising a turbulence detection unit that is sent to an elevator control unit to be controlled. An image projection unit capable of projecting an image including a caution message to inform the user of the opening / closing status of the car door onto the screen;
The screen control unit controls projection of an image onto the screen by the image projection unit, and causes the image projection unit to project an image onto the screen in conjunction with the formation of the screen by the spray unit. The safety device for an elevator door according to any one of claims 1 to 3.   The screen control unit causes the audio output unit that outputs audio into the car to output a caution announcement for notifying the passenger of the opening / closing state of the car door in conjunction with the formation of the screen by the spray unit. The safety device for an elevator door according to any one of claims 1 to 4, wherein the safety device is an elevator door.

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