JP5577636B2 - Entrance / exit device and elevator device - Google Patents

Description

  The present invention relates to an entrance / exit device and an elevator device.

  In the conventional entrance / exit device, it is provided at the entrance / exit of the elevator, and is opposed to form an opening at a predetermined interval in the horizontal direction, in order to reliably detect passengers and luggage in the detection area without gaps. Left and right vertical frames, upper and lower horizontal planes that connect the upper and lower ends of the left and right vertical frames to each other, and a door that opens and closes the opening horizontally across the opening. The elevator apparatus includes a light emitter having a long and continuous light emitting surface provided in the vertical frame, a camera that images the light emitting surface, and an image processing unit that receives an output image of the camera, The light emitting surface of the light emitter is disposed so as to face the opening, and the camera includes the upper horizontal surface or the lower water surface of the vertical frame on the opposite side of the vertical frame provided with the light emitter. Which is disposed in the vicinity of the surface it is known (e.g., see Patent Document 1).

JP 2004-338846 A

  However, in the conventional entrance / exit device shown in Patent Document 1, the camera that captures the light emitting surface is disposed at a position spaced apart from the lower horizontal plane by a certain distance even in the vicinity of the lower horizontal plane. There is a blind spot in which an obstacle cannot be detected in the vicinity of the floor surface (lower horizontal surface) below the position of the camera, and there is a problem that it is difficult to detect, for example, a small foreign object that has fallen on the floor surface.

Further, since the light emitter and the camera are provided in the vertical frame forming the opening, only the obstacle on the vertical frame side can be detected with respect to the door that opens and closes the opening.
Therefore, a light emitter and a camera are provided for the door at the entrance / exit where the two entrances such as the car entrance / entrance entrance / exit can communicate with each other like the elevator entrance / exit. Obstacles that may be caught by the door on the other side can be detected, but obstacles that may be caught by the door cannot be detected on the other side (for example, a light emitter). And if the camera is installed in the vertical frame of the landing doorway, you can detect obstacles that may pinch the door on the landing side, but you should detect obstacles that may pinch the door on the car side. Can not).

In addition, in order to detect obstacles that may be caught in the doors on both the landing side and the car side, it is necessary to install a light emitter and a camera in the vertical frame of both the landing doorway and the car doorway. There is a problem that the number increases, the configuration becomes complicated, and the installation cost increases.
About this subject, it becomes a big problem especially when there are many floors where elevators stop, such as high-rise buildings.

The present invention has been made in order to solve the problems as described above, and a first object is to detect a foreign object or the like without causing a blind spot even in the vicinity of the floor surface, and there is a possibility of pinching the door. An entrance / exit device and an elevator device capable of detecting an obstacle or the like are obtained.
In addition, the second object is to detect an obstacle or the like that may be caught in the doors in both of the two openings with a simple configuration (in the case of an elevator doorway, the door is caught between the landing side and the car side). It is possible to obtain an entrance / exit device and an elevator device that can detect obstacles and the like that may be feared.

The entrance / exit device according to the present invention allows entry / exit by allowing the two openings of the first entrance / exit and the second entrance / exit to communicate with each other, and at that time, the first entrance / exit and the second entrance / exit In the entrance / exit in which a gap space is formed, light is emitted toward the reflection surface provided on the first entrance / exit side and facing the first entrance / exit on the second entrance / exit side. A light emitting means for illuminating the gap space with the reflected light, and a light-receiving imaging that is provided on the first entrance / exit side and receives and reflects the reflected light on the reflection surface of the light emitted from the light emitting means through the gap space Means and an object detection device control means for determining the presence or absence of an obstacle based on the image picked up by the light receiving image pickup means, and the light emitting means forms a lower edge of the first doorway A first lower horizontal frame and Wherein provided on the vertical plane facing the gap space in one of the first of both the upper horizontal frame to form a rim, the reflective surface is configured to have a diffuse reflection characteristics, forming a lower edge of said second doorway to the second lower horizontal frame, facing the gap space, and a vertical surface facing the vertical surface facing the first of the interstitial space of the lower horizontal frame, the light receiving image pickup means, the two The other side of the light source is provided on a vertical surface facing the gap space and receives reflected light having a reflection angle different from the incident angle on the reflection surface.

  Moreover, in the elevator apparatus according to the present invention, the elevator includes the above-described entrance / exit device, wherein the first entrance / exit is a car entrance / exit provided in a passenger car of the elevator, and the second entrance / exit is , It is set as the structure which is a hall entrance provided in the hall of the said elevator.

In the doorway device and the elevator apparatus according to the present invention, it is possible to detect a foreign object or the like without causing a blind spot even in the vicinity of the floor surface, and to detect an obstacle or the like that may be caught in the door. Play.
In addition, it is possible to detect an obstacle or the like that may be caught in the doors in the two openings with a simple configuration (in the case of an elevator device, an obstacle or the like that may be caught in the doors on both the landing side and the car side). It can also be detected).

It is side surface sectional drawing of the doorway apparatus in the elevator which concerns on Embodiment 1 of this invention. It is a front view of the doorway apparatus in the elevator which concerns on Embodiment 1 of this invention. It is a block diagram which shows the principal part structure of the doorway apparatus in the elevator which concerns on Embodiment 1 of this invention. It is a flowchart which shows the flow of operation | movement of the doorway apparatus in the elevator which concerns on Embodiment 1 of this invention. It is a front view of the doorway apparatus in the elevator which concerns on Embodiment 2 of this invention. It is side surface sectional drawing of the doorway apparatus in the elevator which concerns on Embodiment 3 of this invention. It is a front view of the doorway apparatus in the elevator which concerns on Embodiment 3 of this invention.

  The present invention will be described with reference to the accompanying drawings. Throughout the drawings, the same reference numerals indicate the same or corresponding parts, and redundant description thereof will be simplified or omitted as appropriate.

Embodiment 1 FIG.
1 to 4 relate to Embodiment 1 of the present invention. FIG. 1 is a side sectional view of an entrance / exit device in an elevator, FIG. 2 is a front view of the entrance / exit device in the elevator, and FIG. FIG. 4 is a flowchart showing the flow of the operation of the doorway device in the elevator.
In the figure, reference numeral 1 denotes a car that is disposed so as to freely move up and down in an elevator hoistway, and a car entrance that is an opening for a user to enter and exit the car 1 at the front part of the car 1. 2 (first entrance / exit) is provided.
A pair of car-side vertical frames 3 (first vertical frames) are erected on both the left and right sides of the car doorway 2, that is, the left and right edges of the car doorway 2 are formed by these car-side vertical frames 3. Has been.

Further, between the upper ends of the pair of car-side vertical frames 3, a car-side upper horizontal frame 4 (first upper horizontal frame) that forms the upper edge of the car doorway 2 is erected, and the pair of car-side vertical frames A car-side lower horizontal frame 5 (first lower horizontal frame) that forms a lower edge of the car entrance 2 is provided between the lower ends of the car 3.
The car-side lower horizontal frame 5 protrudes toward the outside of the car 1 as compared to the car-side vertical frame 3 and the car-side upper horizontal frame 4 in the depth direction. There is a threshold groove.

  The car doorway 2 is provided with a car door 6 (first door) comprising a pair of double sliding doors that can be opened and closed so that the car doorway 2 is openable and closable. It is attached so as to be slidably engaged with the sill groove of the horizontal frame 5.

A landing 7 is provided on the floor where the car 1 stops, and at the position of the wall of the landing 7 that faces the car entrance 2 when the car 1 stops on the floor where the landing 7 is located. A landing entrance 8 (second entrance) which is an opening is provided.
A pair of landing-side vertical frames 9 (second vertical frames) are erected on both the left and right sides of the landing entrance 8, that is, the left and right edges of the landing entrance 8 are formed by these landing-side vertical frames 9. Has been.

Further, between the upper ends of the pair of landing side vertical frames 9, a landing side upper horizontal frame 10 (second upper horizontal frame) that forms the upper edge of the landing doorway 8 is erected, and the pair of landing side vertical frames A landing-side lower horizontal frame 11 (second lower horizontal frame) that forms a lower edge of the landing doorway 8 is provided between the lower end portions of 9.
The landing-side lower horizontal frame 11 protrudes toward the hoistway compared to the landing-side vertical frame 9 and the landing-side upper horizontal frame 10, and a sill groove is provided in the protruding portion across the frontage direction. .

  The landing doorway 8 is provided with a landing door 12 (second door) including a pair of double sliding doors that can be opened and closed so that the landing doorway 8 can be freely opened and closed. It is attached so as to be slidably engaged with a sill groove of the horizontal frame 11.

  When the car 1 is stopped at the landing 7, a gap region having a gap dimension larger than a predetermined gap dimension is formed between the car-side lower horizontal frame 5 and the hall-side lower horizontal frame 11. It has become. This gap area is a vertical surface of the car-side lower horizontal frame 5 that is the vertical surface of the car-side lower horizontal frame 5 on the landing-side lower horizontal frame 11 side, and the vertical of the car-side lower horizontal frame 11 on the car-side lower horizontal frame 5 side. It is a region sandwiched between the landing side lower horizontal frame vertical surface 11a which is a surface.

On the vertical side 5a of the car side lower horizontal frame, the light emitting unit 13 of the object detection device included in the entrance / exit device is attached. The light emitting unit 13 has a vertical surface on the landing side lower horizontal frame 11 side, and a light exit window 13a is provided on the vertical surface.
And the light emission part 13 radiate | emits the emitted light 14 from this light emission window 13a to the landing side lower horizontal frame vertical surface 11a (In more detail, the light-emitting body 13b provided in the light emission part 13 mentioned later is mentioned. The emitted light is emitted from the light exit window 13a to the landing side lower horizontal frame vertical surface 11a as the emitted light 14).

  The surface of the landing-side lower horizontal frame vertical surface 11a is not a mirror surface but has diffuse reflection (diffuse reflection) characteristics in which light is reflected at various reflection angles with respect to a certain incident angle. The emitted light 14 from the light emitting unit 13 is diffusely reflected on the surface of the landing-side lower horizontal frame vertical surface 11a to generate reflected light 15.

Here, the light emitting unit 13 has a plurality of light emitters 13b arranged in the light emitting unit 13 so as to illuminate the gap area formed between the car side lower horizontal frame 5 and the landing side lower horizontal frame 11 uniformly. It is desirable to illuminate the surface of the landing side lower horizontal frame vertical surface 11a.
More preferably, in order to illuminate the gap region uniformly, the light emitters 13b are arranged at equal intervals in the light emitting portion 13, or the linear light emitters 13b are parallel to the gap region, i.e., the car side lower horizontal It arrange | positions so that the substantially plane parallel to the frame vertical surface 5a and the landing side lower horizontal frame vertical surface 11a may be formed.

The light receiving unit 16 (camera unit) of the object detection device is attached to the car side upper horizontal frame 4 so as to protrude toward the landing side upper horizontal frame 10 via the support bracket 17. Has a light receiving window 16a provided downward.
The reflected light 15 generated by the diffused reflection of the emitted light 14 from the light emitting unit 13 on the surface of the landing-side lower horizontal frame vertical surface 11a reaches the light receiving element 16b in the light receiving unit 16 from the light receiving window 16a. The image of the reflected light 15 is picked up by the light receiving unit 16.

FIG. 2 is a front view of the car 1, showing the front of the doorway device in the elevator.
The car doorway 2 is opened and closed as the pair of car doors 6 move left and right. These car doors 6 contact each other on the entrance / exit center line 18 when fully closed. Similarly, the landing doorway 8 is opened and closed by moving a pair of landing doors 12 to the left and right, and these landing doors 12 abut each other on the doorway centerline 18 when fully closed. Here, the entrance / exit center line 18 at the car entrance 2 and the entrance / exit center line 18 at the landing entrance 8 are the same.

The light emitting unit 13 and the light receiving unit 16 of the object detection device are arranged so as to be positioned on the entrance / exit center line 18 of the car-side lower horizontal frame 5 and the car-side upper horizontal frame 4, respectively.
When the car 1 stops at the landing 7, the car door 6 and the landing door 12 open and close in conjunction with each other.

The main part of the entrance / exit device in an elevator is comprised like the block diagram shown in FIG.
The overall operation of the car 1 is controlled by the car control unit 19. In particular, the opening / closing operation of the car door 6 is driven and controlled by the open / close control unit 20 based on an open / close command signal from the car control unit 19.
The light-emitting unit 13 includes a light-emitting body 13b that emits light. The light-emitting body 13b is turned on and off by a drive unit 13c included in the light-emitting unit 13.

The light receiving unit 16 receives the reflected light 15 from the surface of the landing-side lower horizontal frame vertical surface 11a that has passed through the light receiving window 16a by the light receiving element 16b, and the captured image of the reflected light 15 is sent to the object detection device control unit 16c. Output.
The object detection device control unit 16c synchronizes the imaging timing of the light receiving unit 16 and the light emission timing of the light emitting unit 13, the image processing of the reflected light 15 from the landing side lower horizontal frame vertical surface 11a, and the reflected light 15 The obstacle presence / absence determination process based on the image processing is performed.

The object detection device control unit 16 c outputs a light emission timing signal that controls turning on and off of the light emitting unit 13 to the driving unit 13 c of the light emitting unit 13, and determines whether there is an obstacle based on image processing of the reflected light 15. Depending on the result, an object detection signal is output to the car control unit 19.
And the drive part 13c of the light emission part 13 carries out drive control of lighting and extinction of the light emission body 13b according to the light emission timing signal from the object detection apparatus control part 16c.
The car control unit 19 outputs an open / close command signal to the open / close control unit 20 in response to the object detection signal from the object detection device control unit 16c, and the car door is opened by the open / close control unit 20 based on the open / close control signal. The opening and closing of 6 is controlled.

An object (obstacle) detection process by the object detection device control unit 16c, that is, an obstacle presence / absence determination process based on the image processing of the reflected light 15 is performed as follows.
First, the object detection device control unit 16c captures an image A captured by the light receiving unit 16 when the light emitting unit 13 is not turned on and is turned off, and images by the light receiving unit 16 when the light emitting unit 13 is turned on. The obtained image B is taken in, and a difference image C that is a difference between the image B and the image A is calculated. By performing such difference processing, the light source image of the light emitting unit 13 is extracted from the difference image C.

A substantially triangular area (hereinafter referred to as “object detection area”) having the light receiving portion 16 as the apex and the gap area formed between the car-side lower horizontal frame 5 and the landing-side lower horizontal frame 11 as a base. When there is no opaque object (obstacle) that blocks light, the reflected light 15 from the vertical frame 11a on the landing side lower horizontal frame reaches the light receiving unit 16 without being blocked, and the light source of the difference image C The image becomes one continuous image.
On the other hand, when there is an opaque object (obstacle) that blocks light in the object detection area, the reflected light 15 from the landing side lower horizontal frame vertical surface 11a is partially blocked. Depending on the position, the light source image of the difference image C is a discontinuous image or an image having a shorter length than the light source image when no obstacle exists.

  Thus, the object detection device control unit 16c acquires the difference image C when there is no obstacle in the object detection area in advance, and when the light source image of the difference image C is not one continuous image, Alternatively, when the image is shorter than when no obstacle is present, it is determined that an obstacle or a foreign object exists in the object detection area, and it is determined that an obstacle has been detected.

In this embodiment, the doorway device operates according to a series of flows shown in FIG. 4 when the door is closed.
That is, first, in the initial state, the door (car door 6) of the doorway (car doorway 2) is in a fully opened state. In step S1, whether or not an object is detected in the object detection area is confirmed by the object detection device. If an object is detected, the door is fully opened and the confirmation in step S1 is repeated.

On the other hand, if no object is detected in the object detection area in the confirmation in step S1, the process proceeds to step S2 and a door closing operation is started. Then, after the door closing operation is started, whether or not an object is detected in the object detection area is checked by the object detection device in the next step S3.
If an object is not detected in this step S3, it will progress to step S4 and a door closing operation will be continued, and it will be confirmed whether the door (car door 6) exists in a fully closed position in the following step S5.

  If it is confirmed in step S5 that the door is not yet in the fully closed position, the process returns to step S3 and the operation flow from step S3 to step S5 is repeated. If it is confirmed in step S5 that the door is in the fully closed position, the process proceeds to step S7, and the series of operation flow ends.

  On the other hand, in step S3 during the door closing operation, when an object is detected in the object detection area by the object detection device, the process proceeds to step S6 and the door (car door 6) is reversed. Open. Then, after the door is fully opened, the process returns to step S1, and the operation flow from step S1 is repeated.

  In the above description, it is desirable to illuminate the gap area formed between the car-side lower horizontal frame 5 and the landing-side lower horizontal frame 11 using the light-emitting body 13b in the light-emitting portion 13. However, for example, the light emitting unit 13 may be configured by the light emitter 13b and the condenser lens, and only one part of the gap region or a plurality of parts may be illuminated discretely. In this case, the area where the obstacle is detected corresponds to the location illuminated by the light emitter 13b.

  The entrance / exit device configured as described above enables the entrance / exit when the two openings of the car entrance / exit which is the first entrance / exit and the landing entrance / exit which is the second entrance / exit communicate with each other. In the entrance / exit where a gap space is formed between the entrance / exit and the second entrance / exit, the landing side lower horizontal which is provided on the first entrance / exit side and is a reflective surface facing the first entrance / exit on the second entrance / exit side A light emitting unit that is a light emitting unit that emits light toward the vertical plane of the frame and illuminates the gap space with the light reflected by the reflecting surface; and a reflection surface of the light emitted from the light emitting unit provided on the first entrance / exit side A light receiving unit that is a light receiving imaging unit that receives and captures reflected light from the gap space, and an object detection device control that is an object detection device control unit that determines the presence or absence of an obstacle based on an image captured by the light receiving imaging unit And equipped with In the vicinity of the floor surface, foreign objects can be detected without causing blind spots, obstacles that may be caught in the door can be detected, and both the two openings can be configured with a simple configuration. Obstacles or the like that may be caught in the door can be detected.

  In addition, the light emitting unit as the light emitting means is provided on the car-side lower horizontal frame that is the first lower horizontal frame that forms the lower edge of the first doorway, and the landing-side lower horizontal that is the second lower horizontal frame. A light exit window provided on a vertical surface facing the frame is provided, and light is emitted from the light exit window to the reflection surface, and the light receiving unit which is a light receiving imaging unit forms an upper edge of the first entrance / exit The first upper horizontal frame is provided on the car-side upper horizontal frame, and has a light receiving window provided downward. The reflected light is received through the light receiving window. The second lower horizontal frame forming the lower edge of the entrance / exit is a vertical surface on the landing side lower horizontal frame which is a surface facing the first lower horizontal frame, so that the light emission window of the light emitting means and the light receiving imaging means It is difficult for dust and dirt to adhere to and accumulate on the light-receiving window, resulting in malfunctions caused by dust and dirt. It is possible to prevent in advance.

Embodiment 2. FIG.
FIG. 5 is a front view of an entrance / exit device in an elevator according to Embodiment 2 of the present invention.
In the first embodiment described above, the doors at the doorway are a pair of double sliding doors that move in opposite directions to open and close the door, but the second embodiment described here includes two doors at the doorway. Is a so-called two-piece sliding door that opens and closes by moving in the same direction.

That is, the car doorway 2 is provided with a car door 6 composed of a two-piece sliding door that opens and closes the car doorway 2. A landing door 12 made up of a single sliding door is provided.
Here, of the pair of left and right car-side vertical frames 3, one is a door pocket side in which the car door 6 is retracted and stored when the door is fully opened, and the other is in contact with the side end of the car door 6 when the door is fully closed. It becomes the door-to-door side. In the landing-side vertical frame 9, the landing-side vertical frame 9, which faces the door-side car-side vertical frame 3, is the door-bag side in a state where the car 1 is stopped at the landing 7. The landing side vertical frame 9 facing the side vertical frame 3 is the door stop side.

The light emitting unit 13 and the light receiving unit 16 (camera unit) of the object detection device are positioned very close to the car-side vertical frame 3 on the door-to-door side of the car-side lower horizontal frame 5 and the car-side upper horizontal frame 4, respectively. Are arranged as follows.
Other configurations and operations are the same as those in the first embodiment, and a description thereof will be omitted.

  In the entrance / exit device and the elevator device configured as described above, the same effects as those of the first embodiment can be obtained, and the light emitting unit and the light receiving unit (camera unit) of the object detection device are arranged vertically on the door-to-door side. By being arranged so as to be located very close to the frame, it is possible to detect an obstacle until just before the door is fully closed, as in the first embodiment.

Embodiment 3 FIG.
6 and 7 relate to Embodiment 3 of the present invention. FIG. 6 is a side sectional view of an entrance / exit device in an elevator, and FIG. 7 is a front view of the entrance / exit device in the elevator.
In the first and second embodiments described above, the light emitting unit of the object detection device is disposed on the lower side, that is, attached to the car-side lower horizontal frame, and the light receiving unit (camera unit) is disposed on the upper side, that is, the car-side upper horizontal frame. In the third embodiment described here, the positions of the light emitting part and the light receiving part are exchanged, and the light emitting part of the object detection device is arranged on the upper side, that is, attached to the upper horizontal frame on the car side. Part) is arranged on the lower side, that is, attached to the car-side lower horizontal frame.
Here, the case where the positions of the light emitting unit and the light receiving unit are exchanged will be described based on the first embodiment.

That is, the light emitting unit 13 of the object detection device is attached to the car side upper horizontal frame 4 so as to protrude toward the landing side upper horizontal frame 10 via the support bracket 17. It has a light exit window 13a provided downward.
And the light emission part 13 radiate | emits the emitted light 14 from the light emission window 13a to the landing side lower horizontal frame vertical surface 11a (more specifically, the light emitted from the light emitter 13b provided in the light emission part 13). Is emitted from the light exit window 13a to the landing side lower horizontal frame vertical surface 11a as the emitted light 14).

A light receiving unit 16 (camera unit) of the object detection device is attached to the vertical side 5a of the car side lower horizontal frame. The light receiving unit 16 has a vertical surface on the landing side lower horizontal frame 11 side, and a light receiving window 16a is provided on the vertical surface.
The surface of the landing-side lower horizontal frame vertical surface 11a is not a mirror surface but has diffuse reflection (irregular reflection) characteristics, as in the first and second embodiments. Therefore, the emitted light 14 from the light emitting unit 13 is diffusely reflected on the surface of the landing side lower horizontal frame vertical surface 11a, and the reflected light 15 is generated.
The reflected light 15 reaches the light receiving element 16b in the light receiving unit 16 from the light receiving window 16a, and an image of the reflected light 15 is captured by the light receiving unit 16.
Other configurations and operations are the same as those in the first embodiment or the second embodiment, and a description thereof will be omitted.

  In Embodiments 1 to 3 described above, the example in which the doorway device of the present invention is applied to an elevator has been described. However, the application of the present invention is not limited to an elevator, and the first and second embodiments are described. The entrance / exit device for buildings such as buildings and vehicles provided for transportation such as trains, etc., which has an entrance / exit that allows users to enter / exit by connecting the two openings of the entrance / exit to each other. The present invention can be applied to the apparatus as in the case of an elevator.

  In the doorway device and the elevator device configured as described above, it is possible to achieve the same effects as those of the first embodiment or the second embodiment, and the light emitting unit as the light emitting means is provided in the first doorway. It is provided on the car-side upper horizontal frame which is the first upper horizontal frame forming the upper edge, and has a light emission window provided downward, and emits light from the light emission window to the reflection surface. The light-receiving unit that is a light-receiving and imaging means is provided on the car-side lower horizontal frame that is the first lower horizontal frame that forms the lower edge of the first doorway, and the landing-side lower horizontal that is the second lower horizontal frame A light receiving window provided on a vertical surface facing the frame, receiving reflected light through the light receiving window, the reflecting surface of the second lower horizontal frame forming the lower edge of the second doorway, The landing side lower horizontal frame vertical that is the surface facing the first lower horizontal frame As in the first embodiment, it is difficult for dust and dirt to adhere to and accumulate on the light exit window of the light emitting means and the light receiving window of the light receiving imaging means. It can be prevented in advance.

DESCRIPTION OF SYMBOLS 1 Car 2 Car entrance / exit 3 Car side vertical frame 4 Car side upper horizontal frame 5 Car side lower horizontal frame 5a Car side lower horizontal frame vertical surface 6 Car door 7 Landing 8 Entrance doorway 9 Landing side vertical frame 10 Landing side upper horizontal frame 11 landing side lower horizontal frame 11a landing side lower horizontal frame vertical surface 12 landing door 13 light emitting part 13a light emitting window 13b light emitting body 13c driving part 14 emitted light 15 reflected light 16 light receiving part 16a light receiving window 16b light receiving element 16c object detection device control Numeral 17 Support bracket 18 Entry / exit center line 19 Car control unit 20 Open / close control unit

Claims (8)

The two openings of the first doorway and the second doorway communicate with each other to allow the doorway to enter and exit, and a gap space is formed between the first doorway and the second doorway. At the doorway
A light emitting means that is provided on the first entrance / exit side, emits light toward a reflection surface facing the first entrance / exit on the second entrance / exit side, and illuminates the gap space by the reflected light from the reflection surface When,
A light-receiving imaging unit that is provided on the first entrance / exit side and receives and reflects the reflected light on the reflection surface of the light emitted from the light-emitting unit through the gap space;
An object detection device control means for determining the presence or absence of an obstacle based on the image picked up by the light receiving image pickup means,
The light emitting means is provided on a vertical surface facing the gap space in one of the first lower horizontal frame forming the lower edge and the first upper horizontal frame forming the upper edge of the first doorway. And
The reflective surface is configured to have a diffuse reflection characteristics, the second lower horizontal frame forming a lower edge of the second doorway, facing the gap space, and the first of said lower horizontal frame a vertical surface facing the vertical surface facing the gap space,
The entrance / exit device characterized in that the light receiving and imaging means is provided on a vertical surface facing the gap space on the other of the two, and receives reflected light having a reflection angle different from an incident angle on the reflection surface. The light emitting means is provided on the first lower horizontal frame,
The entrance / exit device according to claim 1, wherein the light receiving imaging unit is provided in the first upper horizontal frame. The light emitting means has a light emission window provided on a vertical surface facing the second lower horizontal frame, emits light from the light emission window to the reflection surface,
The entrance / exit device according to claim 2, wherein the light receiving and imaging unit includes a light receiving window provided downward, and receives the reflected light through the light receiving window. The light emitting means is provided in the first upper horizontal frame,
The entrance / exit device according to claim 1, wherein the light receiving and imaging unit is provided in the first lower horizontal frame. The light emitting means has a light exit window provided downward, and emits light from the light exit window to the reflection surface,
5. The light receiving and imaging unit has a light receiving window provided on a vertical surface facing the second lower horizontal frame, and receives the reflected light through the light receiving window. Doorway equipment. The doorway is provided to be openable and closable at the first doorway, and further includes a pair of double sliding doors that move in opposite directions to open and close the doors and abut against each other on the doorway centerline when fully closed,
The entrance / exit device according to any one of claims 1 to 5, wherein the light emitting means and the light receiving imaging means are arranged on the entrance / exit center line. The door further includes a one-way door that is freely opened and closed at the first doorway,
The doorway device according to any one of claims 1 to 5, wherein the light-emitting means and the light-receiving and imaging means are disposed on a door-contact side of the one-side sliding door. An elevator comprising the doorway device according to any one of claims 1 to 7,
The first doorway is a car doorway provided in the elevator car,
The elevator apparatus according to claim 2, wherein the second doorway is a landing doorway provided in the hall of the elevator.

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