WO2007142074A1 - スライドドア装置及びエレベータ - Google Patents
スライドドア装置及びエレベータ Download PDFInfo
- Publication number
- WO2007142074A1 WO2007142074A1 PCT/JP2007/060881 JP2007060881W WO2007142074A1 WO 2007142074 A1 WO2007142074 A1 WO 2007142074A1 JP 2007060881 W JP2007060881 W JP 2007060881W WO 2007142074 A1 WO2007142074 A1 WO 2007142074A1
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- WIPO (PCT)
- Prior art keywords
- light
- light emitting
- sliding door
- emitting surface
- image
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/24—Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers
- B66B13/26—Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers between closing doors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
Definitions
- the present invention relates to a sliding door device that automatically moves a door horizontally and an elevator using the same.
- a light emitter having a long and continuous light emitting surface is provided on one of the left and right vertical frames of the entrance / exit, and a vertical frame facing the light emitter is provided.
- a camera for imaging the light emitting surface is provided (for example, see Patent Document 1).
- Patent Document 1 Japanese Unexamined Patent Application Publication No. 2004-338846
- the light emitter and the camera are provided in the vertical frame. Therefore, when a passenger or part of the luggage approaches the door, it is in a position where it is not actually caught by the door. Even an obstacle may be detected. For this reason, when this sliding door device is applied to an elevator, the door may be opened several times when the door is closed, and the operation efficiency is lowered. In addition, in order to detect obstacles such as landing side forces, it is necessary to install a light emitter and a camera for each landing on each floor, which increases costs.
- the present invention has been made to solve the above-described problems, and a sliding door device that can more reliably detect an obstacle actually caught between doors and an elevator using the same.
- the purpose is to obtain.
- the sliding door device has a first door that opens and closes the first doorway by sliding horizontally, and slides horizontally together with the first door to move to the first doorway.
- a second door that opens and closes the opposing second doorway, an imager that is disposed on the side of the space between the first doorway and the second doorway, and that images the space side, and image data from the imager
- the image processing determination unit that determines the presence or absence of an obstacle in the space is provided.
- the elevator according to the present invention has a car doorway, is provided in a car that is raised and lowered in the hoistway, a force car, and is provided in a landing that is a force door that opens and closes the car doorway by sliding horizontally.
- a landing door that opens and closes the landing doorway by sliding horizontally with the force door, an imaging means that is provided in the car at the side of the space between the force doorway and the landing doorway and images the space side And an image processing determination unit that determines the presence or absence of an obstacle in the space based on the image data from the imaging means.
- ⁇ 1 A configuration diagram illustrating an elevator according to Embodiment 1 of the present invention.
- FIG. 2 is a horizontal sectional view of the sliding door device of FIG.
- FIG. 3 is a front view of the force door device of FIG. 2 as viewed from the landing side.
- FIG. 4 is a cross-sectional view of the light emitter shown in FIGS. 2 and 3.
- FIG. 4 is a cross-sectional view of the light emitter shown in FIGS. 2 and 3.
- FIG. 5 is a schematic block diagram showing a control circuit of the sliding door device of FIG. 1.
- FIG. 6 is an explanatory diagram showing a differential image obtained by the image processing determination unit in FIG. 5 when there is no obstacle in the monitoring area.
- FIG. 7 is an explanatory diagram showing a first example of a difference image obtained by the image processing determination unit in FIG. 5 when an obstacle exists in the monitoring area.
- FIG. 8 is an explanatory diagram showing a second example of the difference image obtained by the image processing determination unit in FIG. 5 when an obstacle exists in the monitoring area.
- FIG. 9 is a flowchart showing an operation of the main control unit of FIG. 5 when the door is closed.
- FIG. 10 is a horizontal sectional view of a sliding door device for an elevator according to Embodiment 2 of the present invention.
- FIG. 11 is a front view of the force door device of FIG. 10 viewed from the landing side.
- ⁇ 12 It is an explanatory view showing a differential image obtained by the image processing determination unit of the sliding door device of FIG.
- FIG. 13 is an explanatory diagram showing a difference image obtained by the image processing determination unit of the sliding door device of FIG. 10 during the door closing operation.
- FIG. 14 is a schematic block diagram showing a control circuit of the sliding door device of FIG.
- FIG. 15 shows a control circuit of an elevator sliding door device according to Embodiment 3 of the present invention. It is a schematic block diagram.
- FIG. 16 is a horizontal sectional view of a sliding door device for an elevator according to Embodiment 4 of the present invention.
- FIG. 17 is a front view of the force door device of FIG. 16 viewed from the landing side.
- FIG. 18 is a horizontal sectional view of a sliding door device for an elevator according to Embodiment 5 of the present invention.
- FIG. 19 is a front view of the force door device of FIG. 18 as viewed from the landing side.
- FIG. 22 is a horizontal sectional view of the sliding door device for an elevator according to Embodiment 8 of the present invention.
- FIG. 23 is a front view of the car door device of FIG. 22 as viewed from the landing side.
- FIG. 24 is a schematic block diagram showing a control circuit of an elevator slide door device according to Embodiment 9 of the present invention.
- FIG. 25 is a flowchart showing an operation of the main control unit of FIG. 24 when the door is closed.
- FIG. 26 is a flowchart showing the operation of the main control unit when the door is closed according to the eleventh embodiment of the present invention.
- FIG. 27 is a front view showing a light emitter of the sliding door device according to the twelfth embodiment of the present invention.
- FIG. 31 is a horizontal sectional view of a sliding door device for an elevator according to Embodiment 15 of the present invention.
- FIG. 32 is a front view of the car door device of FIG. 31 viewed from the landing side.
- FIG. 1 is a block diagram showing an elevator according to Embodiment 1 of the present invention.
- a towing device 2 is installed above the hoistway 1.
- the scraping device 2 includes a drum 3 and a scraping motor 4 that rotates the drum 3.
- a wire 5 as a suspension means is wound around the drum 3.
- a car 6 that is a lifting body is connected to an end of the wire 5.
- the car 6 is suspended in the hoistway 1 by the wire 5, and is raised and lowered in the hoistway 1 by the scraping device 2.
- a plurality of car guide rails 7 are installed in the hoistway 1 to guide the raising and lowering of the force 5.
- the car 6 has a car frame 8 to which the wire 5 is connected and a car room 9 supported by the force car frame 8.
- a car doorway 10 as a first doorway is provided in front of the car room 9.
- the hall 11 is provided with a hall 12 which is the second door.
- the car entrance 10 and the landing entrance 12 are opened and closed by a sliding door device 13.
- the sliding door device 13 is provided in all the landings 11 and opens / closes the landing doors 12 and 14 and a door driving device 15 that drives the car door device 14 and 14 to open / close the force door 10 And a plurality of landing door devices 16.
- the door driving device 15 is mounted on the upper portion of the force 6.
- the landing door device 16 is opened / closed together with the force door device 14 by engaging with the car door device 14 when the force 6 reaches the landing 11.
- FIG. 2 is a horizontal cross-sectional view of the sliding door device 13 of FIG. 1
- FIG. 3 is a front view of the car door device 14 of FIG. 2 as viewed from the landing side.
- a pair of vertical frames 17 and 18 are provided on both sides of the force inlet / outlet port 10.
- the lower ends of the vertical frames 17 and 18 are connected to each other by a lower horizontal frame 19.
- the upper ends of the vertical frames 17 and 18 are connected to each other by the upper horizontal frame 20.
- the car doorway 10 is formed inside these frames 17-20.
- the car door device 14 has car doors 21 and 22 as first doors for opening and closing the car doorway 10.
- the car doors 21 and 22 move in opposite directions when opening and closing.
- the car doors 21 and 22 are stored in the car door storage portions (door bag portions) 23 and 24 when all the doors are opened.
- a pair of vertical frames 25 and 26 are provided on both sides of the hall entrance 12.
- the lower ends of the vertical frames 25 and 26 are connected to each other by a lower horizontal frame 27.
- the top of the vertical frames 25, 26 is the upper water They are connected to each other by a flat frame (not shown).
- the landing entrance 12 is formed inside these frames 25 to 27.
- the landing door device 16 has landing doors 28 and 29 as second doors for opening and closing the landing doorway 12.
- the landing doors 28 and 29 move in opposite directions when opening and closing.
- the landing doors 28 and 29 are stored in the landing door storage portions (door pocket portions) 30 and 31 when all the doors are opened.
- a light emitter 32 is provided in the vicinity of the car door storage portion 24 of the cage 6 (on the landing side of the car door 22).
- the light emitter 32 irradiates the space between the force doors 21 and 22 and the landing doors 28 and 29 with the detection light 33 parallel to the opening and closing direction of the force doors 21 and 22.
- the light emitter 32 has a light emitting surface 32a that is long and continuous in the vertical direction.
- imaging means for imaging the light emitting surface 32a is arranged.
- the imaging means includes first to third cameras 34 provided in the vicinity of the force door storage 23 of the force 6 so as to face the light emitter 32 (on the landing side of the car door 21).
- ⁇ 36 The first camera 34 is arranged at almost the same height as the upper end of the car doorway 10.
- the second camera 35 is disposed at substantially the same height as the vertical middle portion of the car doorway 10.
- the third camera 36 is arranged at almost the same height as the lower end of the car doorway 10.
- Each of the cameras 34 to 36 is installed so as to image the entire light emitting surface 32a.
- FIG. 4 is a cross-sectional view of the light emitter 32 of FIGS. 2 and 3.
- the light emitter 32 includes a substrate 37, a plurality of light sources 38 provided on the substrate 37 with a space therebetween in an upward and downward direction, and a transparent diffusion plate disposed in front of the substrate 37 so as to face the light source 38. 39.
- the light source 38 for example, a light emitting diode or a semiconductor laser is used.
- the light source 38 is disposed so as to irradiate the entire area of the transparent diffusion plate 39.
- the transparent diffusing plate 39 diffuses and emits as much light as possible from the light source 38.
- the light emitting surface 32a is formed by a transparent diffusion plate 39.
- FIG. 5 is a schematic block diagram showing a control circuit of the sliding door device 13 of FIG.
- the door drive device 15 is controlled by an opening / closing control unit 41. That is, the opening / closing operation of the car doors 21 and 22 and the landing doors 28 and 29 is controlled by the opening / closing control unit 41.
- the open / close control unit 41 is mounted on the car 6.
- Signals from the first to third cameras 34 to 36 are sent to the image processing determination unit 42.
- Image processing Based on the signals from the cameras 34 to 36, the reason determination unit 42 determines whether or not the detection light 33 from the light emitter 32 is blocked by an obstacle when the door is closed.
- the light emitter 32, the open / close control unit 41, and the image processing determination unit 42 are controlled by the main control unit 43.
- the main control unit 43 irradiates the detection light 33 from the light emitter 32 at least when the door is closed.
- the main control unit 43 reversely opens the car doors 21 and 22 and the landing doors 28 and 29.
- the open / close control unit 41, the image processing determination unit 42, and the main control unit 43 are each configured by a micro computer. In addition, at least two of the open / close control unit 41, the image processing determination unit 42, and the main control unit 43 can be configured by a common computer.
- the control device includes an open / close control unit 41, an image processing determination unit 42, and a main control unit 43.
- the image processing determination unit 42 receives the image data ⁇ from the cameras 34 to 36 when the light emitter 32 is not lit and the image data j8 when the light emitter 32 is lit and there is no obstacle. take in . Then, a difference image ⁇ obtained by subtracting the image data ⁇ from the image data
- the difference image ⁇ has one continuous straight line as shown in FIG. A light-emitting surface image remains.
- the difference image ⁇ has a light emitting surface image as shown in FIG. 7 or FIG. Remain. That is, in the differential image ⁇ in FIG. 7, the light emitting surface image is divided into a plurality of parts and is discontinuous. In addition, in the difference image ⁇ in FIG. 8, the length of the light emitting surface image is shorter than usual.
- the image processing determination unit 42 detects that the light emitting surface image has become discontinuous, has become shorter, or has disappeared, the image processing determining unit 42 determines that an obstacle is present and outputs a signal to that effect. Send to control unit 43.
- FIG. 9 is a flowchart showing the operation of the main control unit 43 in FIG. 5 when the door is closed.
- the main control unit 43 confirms whether an obstacle exists in the monitoring area after a predetermined time has elapsed since the door was opened (step S1). If there are no obstacles, the door closing operation is started (Step S 2). If there is an obstacle, wait until the obstacle disappears, and start the door closing operation after the obstacle disappears.
- step S4 If there is no obstacle, the door closing operation is continued (step S4), and it is confirmed whether the car doors 21, 22 and the landing doors 28, 29 have reached the fully closed position (step S5). In other words, during the door closing operation, the presence or absence of obstacles is repeatedly checked until all doors are closed.
- step S6 When an obstacle is detected during the door closing operation, the car doors 21, 22 and the landing doors 28, 29 are reversed and opened (step S6), and the operation returns to the initial operation. If no door is detected and the doors are all closed, the operation in Fig. 9 ends.
- the first to third cameras 34 to 36 are arranged on the side of the space between the car entrance 10 and the landing entrance 12, so that the door 21 actually , 22, 28, 2
- the cameras 34 to 36 need only be mounted on the car 6, so that the cost can be reduced compared to the case where they are installed at all landings.
- the light emitter 32 is disposed at a position facing the cameras 34 to 36 across the space between the car entrance 10 and the landing entrance 12, and the light emitting surface 32a is imaged by the cameras 34 to 36. Therefore, the obstacle can be detected more reliably.
- the image processing determination unit 42 performs image data and light emission when the light emitter 32 is turned off.
- the obstacle Since the presence / absence of an obstacle is determined based on the difference image from the image data when 32 is turned on, the obstacle can be detected more reliably.
- the image processing determination unit 42 detects an obstacle when the image of the light emitting surface 32a is discontinuous, when the image length of the light emitting surface 32a becomes short, and when the image of the light emitting surface 32a disappears. Since it is determined that it exists, an obstacle can be detected more reliably.
- the imaging means includes three cameras 34-36 arranged at different heights
- Obstacles can be detected more reliably.
- FIG. 10 is a horizontal sectional view of the sliding door device for an elevator according to Embodiment 2 of the present invention
- FIG. 11 is a front view of the car door device of FIG. 10 viewed from the landing side.
- the light emitter 32 is mounted on the door closing side end of the front surface of the force door 22 (the surface facing the landing door 29). That is, the light emitter 32 moves with the force door 22.
- the first camera 34 is arranged at a height different from the upper end of the light emitting surface 32a.
- the first camera 34 is arranged at a position lower than the upper end portion of the light emitting surface 32a. Furthermore, in the first camera 34, the straight line B connecting the upper end of the light emitting surface 32a and the first camera 34 and the optical axis A of the lens system of the first camera 34 are not always parallel. It is arranged in
- the distance between the light emitter 32 and the cameras 34 to 36 changes with the movement of the force door 22, and the expected angle ⁇ a of the light emitting surface 32a viewed from the cameras 34 to 36 is shown.
- ⁇ > h, ⁇ c also change.
- the length of the light emitting surface 32a imaged by the cameras 34 to 36 also changes as the car door 22 moves. That is, when the door is fully opened, for example, a differential image ⁇ as shown in FIG. 12 is obtained, but as the door closing operation proceeds, the light emitting surface 32a approaches the cameras 34 to 36. A difference image ⁇ is obtained.
- the length of the light emitting surface image changes due to the door closing operation of the force door 22 even if there is no obstacle. It is necessary to obtain the length of the light emitting surface image as a reference for comparison according to the position of the force door 22.
- FIG. 14 is a schematic block diagram showing a control circuit of the sliding door device of FIG.
- the door position and image length determination unit 44 determines the position of the car door 22 based on the difference image ⁇ data obtained from the image processing determination unit 42 and emits light according to the position of the force door 22. Find the reference length of the surface image.
- the control device includes an open / close control unit 41, an image processing determination unit 42, a main control unit 43, and a door position / image length determination unit 44.
- the angle ⁇ formed by the straight line ⁇ with respect to the optical axis ⁇ changes as the car door 22 moves.
- the position of the upper end portion of the light emitting surface 32 a imaged by the camera 34 changes as the car door 22 moves. Therefore, the position of the upper end portion of the light emitting surface image of the difference image 0 obtained from the image data from the camera 34 is uniquely determined with respect to the position of the force door 22.
- the door position and image length determination unit 44 uses this principle to determine the position of the car door 22. Then, information on the reference length of the light emitting surface image corresponding to the position of the force door 22 is sent to the image processing determination unit 42.
- the image processing determination unit 42 determines the presence / absence of an obstacle based on the reference length of the light emitting surface image as in the first embodiment.
- the door position and image length determination unit 44 can be configured by a microcomputer that is common or independent of the image processing determination unit 42. Other configurations are the same as those in the first embodiment.
- the light emitter 32 and the camera 34 are arranged so that the position of the upper end portion of the light emitting surface 32a picked up by the camera 34 changes with the movement of the force door 22, and the light emitting surface 32a obtained from the camera 34 is arranged. Based on the image data, the position of the car door 22 and the reference length of the light emitting surface image corresponding to the position are obtained. Therefore, the light emitter 32 and the camera 34 to 36 by moving the car door 22 without adding the door position measuring device. Change in the distance between can be compensated.
- the detection light 33 emitted from the light emitter 32 may be visible light.
- the passenger can visually recognize the light emitting surface 32a, and the operation of the doors 21, 22, 28, 29 can be controlled by synchronizing the timing of light emission with the operation of the doors 21, 22, 28, 29. Can be shown visually. For example, it does not emit light when the door is open or when it is waiting for the door to open, and if the light is emitted during the door closing operation at the start of the door closing, the passenger can be informed of the door closing operation more easily.
- FIG. 15 is a schematic block diagram showing a control circuit of the sliding door device for an elevator according to Embodiment 3 of the present invention.
- a door position measuring device 45 is provided in a driving portion of the car doors 21 and 22 and outputs a signal corresponding to the positions of the car doors 21 and 22.
- an encoder attached to the motor of the door driving device 15 can be used as the door position measuring device 45.
- the image length determination unit 40 Based on the information from the door position measuring device 45, the image length determination unit 40 sends information on the reference length of the light emitting surface image corresponding to the positions of the car doors 21 and 22 to the image processing determination unit 42.
- the control device includes an open / close control unit 41, an image processing determination unit 42, a main control unit 43, and an image length determination unit 40. Other configurations are the same as those in the second embodiment. [0041] Thus, by using the door position measuring device 45, the control circuit can be simplified and the adjustment of the mounting positions of the cameras 34 to 36 and the light emitter 32 can be facilitated.
- FIG. 16 is a horizontal sectional view of the sliding door device for an elevator according to Embodiment 4 of the present invention
- FIG. 17 is a front view of the car door device of FIG. 16 viewed from the landing side.
- cameras 34 to 36 are mounted on the car door 21 instead of the light emitter 32.
- FIG. 18 is a horizontal sectional view of the sliding door device for an elevator according to Embodiment 5 of the present invention
- FIG. 19 is a front view of the car door device of FIG. 18 viewed from the landing side.
- the light emitter 32 is mounted on the car door 22
- the cameras 34 to 36 are mounted on the car door 21.
- the light emitter 32 and the cameras 34 to 36 can be mounted on the car doors 21 and 22, and even with such a configuration, obstacles actually sandwiched between the doors 21, 22, 28, and 29 can be removed. It can be detected more reliably.
- FIG. 20 is a sectional view of the light emitter 32 of the sliding door device according to the sixth embodiment of the present invention.
- An upper light source 46 a that emits light downward is fixed to the upper end of the light emitter 32.
- a lower light source 46b for irradiating light upward is fixed to the lower end portion of the light emitter 32.
- a transparent light guide 47 is provided between the upper light source 46a and the lower light source 46b to conduct light in the longitudinal direction (up and down).
- the light emitting surface 32 a is formed on the front surface of the transparent light guide 47.
- a diffusion surface 48 that diffuses light is joined to the surface (back surface) of the transparent light guide 47 that faces the light emitting surface 32a.
- the light incident on the transparent light guide 47 from the light sources 46 a and 46 b is not diffused by the diffusion surface 48 and propagates in the transparent light guide 47. Then, the light diffused by the diffusing surface 48 is emitted as the detection light 33 from the light emitting surface 32a.
- Other configurations are the same as those in the first embodiment.
- the diffusing surface 48 may be formed integrally with the transparent light guide 47 by processing the surface of the transparent light guide 47 facing the light emitting surface 32a.
- FIG. 21 is a front view showing the light emitter 32 of the sliding door device according to Embodiment 7 of the present invention (a view also showing the side forces of the cameras 34 to 36).
- the first to fourth transparent light guides 49 to 52 are arranged in the order of the upper force of the light emitter 32. Thereby, the light emitting surface 32a is divided into a plurality of (four) light emitting surfaces 49a, 50a, 51a, 52a. Further, the first to fourth transparent light guides 49 to 52 are alternately shifted in the width direction of the light emitter 32. Furthermore, the transparent light guides 49 to 52 adjacent to each other in the vertical direction are arranged so as to partially overlap in the vertical direction! RU
- a first upper light source 53 is provided at the upper end of the first transparent light guide 49.
- a first lower light source 54 is provided at the lower end of the first transparent light guide 49.
- a second upper light source 55 is provided at the upper end of the second transparent light guide 50.
- a second lower light source 56 is provided at the lower end of the second transparent light guide 50.
- a third upper light source 57 is provided at the upper end of the third transparent light guide 51.
- a third lower light source 58 is provided at the lower end of the third transparent light guide 51.
- a fourth upper light source 59 is provided at the upper end of the fourth transparent light guide 52.
- a fourth lower light source 60 force is provided at the lower end of the fourth transparent light guide 52.
- a diffusion surface 48 (see FIG. 20) is bonded to the surface of each transparent light guide 49 to 52 that faces the front surface (light emitting surfaces 49a, 50a, 51a, 52a). Other configurations are the same as those in the first embodiment.
- the transparent light guides 49 to 52 are arranged.
- the intensity of the detection light 33 emitted from can be sufficiently maintained.
- the light emitters 32 having different lengths can be easily manufactured only by changing the overlapping amount of the transparent light guides 49 to 52 in the vertical direction.
- the light emitter 32 is not limited to the above example, and may be a linear light source using, for example, a fluorescent lamp or an electoluminescence light source. [0051] Embodiment 8.
- FIG. 22 is a horizontal sectional view of the sliding door device for an elevator according to Embodiment 8 of the present invention
- FIG. 23 is a front view of the force door device of FIG.
- the eighth embodiment is an example in which the light emitter 32 of the first embodiment is omitted.
- the cameras 34 to 36 image the structure existing on the extension of the space through the space between the car entrance 10 and the landing entrance 12. Examples of structures to be imaged include hoistway walls and elevating equipment. Such a structure can be imaged by the cameras 34 to 36 by being illuminated by the illumination device in the hoistway 1 or light of the hoistway 1 external force.
- the first to third cameras 34 to 36 are arranged on the side of the space between the car entrance 10 and the landing entrance 12, so Therefore, it is possible to more reliably detect obstacles caught between the doors 21, 22, 28, and 29.
- FIG. 24 is a schematic block diagram showing a control circuit of the sliding door device for an elevator according to Embodiment 9 of the present invention.
- a warning sound generating unit 61 that generates a warning sound is connected to the main control unit 43 in the vicinity of the car entrance 10 and the landing entrance 12.
- the warning sound may be a buzzer or chime sound or an announcement sound.
- the main control unit 43 causes the warning sound generation unit 61 to generate a warning sound.
- Other configurations are the same as those in the first embodiment.
- FIG. 25 is a flowchart showing the operation of the main control unit 43 shown in FIG. 24 when the door is closed.
- the main control unit 43 checks whether there is an obstacle in the monitoring area after a predetermined time has elapsed since the door was opened (step Sl). If there is no obstacle, the door closing operation is started (step S2). If there is an obstacle, the warning sound generator 61 generates a warning sound (step S7), waits until the obstacle disappears, starts the door closing operation without the obstacle.
- step S3 After the door closing operation is started, it is confirmed whether there is an obstacle in the monitoring area (step S3). If there is no obstacle, the door closing operation is continued (step S4), and the car door is moved. It is confirmed whether or not the forces 21 and 22 and the landing doors 28 and 29 reach the closed position (step S5). In other words, during the door closing operation, the presence or absence of obstacles is repeatedly checked until all doors are closed.
- step S8 When an obstacle is detected during the door closing operation, the car doors 21, 22 and the landing doors 28, 29 are reversed. The door is opened and a warning sound is generated by the warning sound generator 61 (step S8), and the operation returns to the initial operation. If all the doors are closed with no obstacles detected, the operation in Fig. 24 ends.
- a warning sound is generated when an obstacle is detected, so that the passenger is audibly informed that an obstacle that hinders the door closing operation is detected. That's right.
- the configuration of the sliding door device 13 of the tenth embodiment is the same as that of the first embodiment.
- the main control unit 43 performs operation checks (failure detection) of the light emitter 32 and the cameras 34 to 36 when all the doors are closed.
- the main control unit 43 performs an operation similar to the obstacle detection operation when the door is closed when the door is fully closed. At this time, if the light emitter 32 and the cameras 34 to 36 are normal, a continuous light emitting surface image as shown in FIG. 6 is obtained. On the other hand, for example, when a light emitting surface image as shown in FIG. 7 or FIG. 8 is obtained, a part of the light emitter 32 breaks down and becomes unable to emit light. It is thought that part of the image can no longer be taken. Moreover, it is considered that the light emitter 32 or the cameras 34 to 36 are out of order even when the entire light emitting surface image is lost.
- the main control unit 43 in the operation check of the light emitter 32 and the cameras 34 to 36, when the light emitting surface image has a dark portion of a predetermined length or more, and the entire light emitting surface image disappears. If it is determined that a failure has occurred in at least one of the light emitter 32 and the cameras 34-36.
- the open / close control unit 41 shifts to a low energy operation in which the door closing operation is performed at a lower speed than usual. As a result, even if an obstacle detection failure occurs due to a failure, the impact of collision between the doors 21, 22, 28, 29 and the obstacle can be reduced.
- the configuration of the sliding door device 13 of the eleventh embodiment is the same as that of the first embodiment.
- 32 light emitters are used. Visible light is used as the detection light 33 emitted from the light.
- the main control unit 43 changes the light emission pattern of the light emitter 32 when an obstacle is detected by the image processing determination unit 42 when the door is closed.
- the light emitter 32 when no obstacle is detected, the light emitter 32 causes the detection light 33 to blink at a predetermined period T (eg, 0.1 sec). On the other hand, when an obstacle is detected, the light emitter 32 flashes the detection light 33 with a period longer than the period T (for example, 3T or 4T).
- a predetermined period T eg, 0.1 sec.
- the light emitter 32 flashes the detection light 33 with a period longer than the period T (for example, 3T or 4T).
- T e.g, 0.1 sec
- FIG. 26 is a flowchart showing the operation of the main control unit 43 when the door is closed according to the eleventh embodiment of the present invention.
- the main control unit 43 checks whether there is an obstacle in the monitoring area after a predetermined time has elapsed since the door was opened (step Sl). If there is no obstacle, the door closing operation is started (step S2). If there is an obstacle, the light emission pattern by the light emitter 32 is changed (step S9) until the predetermined time elapses, and the obstacle detection operation is performed again.
- step S3 After the start of the door closing operation, it is confirmed whether there is an obstacle in the monitoring area (step S3). If there is no obstacle, the door closing operation is continued (step S4), and the car door is It is confirmed whether or not the forces 21 and 22 and the landing doors 28 and 29 reach the closed position (step S5). In other words, during the door closing operation, the presence or absence of obstacles is repeatedly checked until all doors are closed.
- step S10 When an obstacle is detected during the door closing operation, the car doors 21, 22 and the landing doors 28, 29 are reversed and the light emission pattern by the light emitter 32 is changed (step S10). Return to operation. The light emission pattern after the change continues until the door is fully opened. If all the doors are closed with no obstacles detected, the operation in Fig. 26 ends.
- the blinking cycle of the detection light 33 is increased when an obstacle is detected. Conversely, the blinking cycle may be shortened. However, if the blinking cycle when the obstacle is not detected is relatively short, it is difficult for the passenger to recognize even if the blinking cycle is further shortened. Therefore, it is preferable to make the blinking cycle longer.
- the change in the blinking cycle is shown as the change in the light emission pattern.For example, when the obstacle is not detected, the entire light emitting surface 32a is caused to emit light, and when the obstacle is detected, a part of the light emitting surface 32a is indicated. Let's make it emit light.
- the emission intensity of the detection light 33 may be changed between when the obstacle is not detected and when the obstacle is detected. For example, when an obstacle is detected, the emission intensity of the detection light 33 may be increased.
- the color of the detection light 33 may be changed between when an obstacle is not detected and when it is detected.
- FIG. 27 is a front view showing a light emitter of a sliding door device according to Embodiment 12 of the present invention.
- the light emitting surface of the light emitter 32 includes a plurality of first light emitting surfaces 50a and 52a that are driven and lighted by the first light source driving unit 62 and a plurality of light sources that are driven and lighted by the second light source driving unit 63.
- the second light emitting surfaces 49a and 51a are divided.
- the first light emitting surfaces 50a and 52a are formed on the second and fourth transparent light guides 50 and 52, respectively.
- the second light emitting surfaces 49a and 51a are formed on the first and third transparent light guides 49 and 51, respectively.
- the first and second light emitting surfaces 50a, 52a, 49a, 51a are alternately arranged in the upper and lower direction of the light emitter 32.
- the second upper light source 55, the second lower light source 56, and the fourth upper light source are arranged.
- 59 and the fourth lower light source 60 are connected to the first light source driving unit 62.
- the first upper light source 53, the first lower light source 54, the third upper light source 57 and the third lower light source 58 are connected to the second light source driving unit 63.
- 57 and 58 are wired independently of each other, and are driven on by the first and second light source driving units 62 and 63 independently of each other.
- Other configurations are the same as those in the seventh embodiment.
- the entire light emitter does not stop emitting light.
- the object detection operation can be carried out continuously.
- the first light emitting surfaces 50a, 52a and the second light emitting surfaces 49a, 51a are connected to a light emitter.
- the force may be divided into an upper part and a lower part.
- the light emitting surfaces 49a, 50a, 51a, 52a may be divided into three or more forces divided into two, and each may be driven and lit by an independent light source driving unit.
- FIG. 28 is an explanatory view showing the relationship between the camera-captured image and the luminance distribution according to Embodiment 13 of the present invention.
- the light emitter 32 as shown in the seventh and twelfth embodiments is used.
- the size of the two-dimensional image data obtained by the cameras 34 to 36 is GxX Gy.
- the longitudinal direction (vertical direction) of the light emitter 32 is defined as the X direction, and the direction orthogonal to the X direction is defined as the y direction.
- the image processing determination unit 42 obtains a difference image for image data (Wx X Wy: Wx ⁇ Gx, Wy ⁇ Gy) of a partial region including the light emitting surface image. Then, the X-axis direction distribution of the luminance value b (x) is obtained from the difference image of Wx XWy by a predetermined calculation. For example, the sum of the luminances of all the pixels arranged in the y-axis direction at each position X is obtained. Further, for each position X, the average luminance of all the pixels arranged in the y-axis direction may be obtained. Further, for each position X, the maximum luminance value of all pixels arranged in the y-axis direction may be obtained. Furthermore, for each position X! /, The moving average value of N pixels (N ⁇ Wy) in the y-axis direction (the average value of consecutive N pixels) is obtained, and the maximum value of these moving average values can be obtained. Good.
- the distribution of the brightness value b (x) obtained in this way is continuous in the X-axis direction as shown in FIG. 28 if there is no obstacle.
- the distribution of the brightness value b (x) when there is an obstacle is discontinuous as shown in FIG. 29, for example. Therefore, the image processing determination unit 42 determines that an obstacle exists when at least a part of the distribution of the luminance value b (x) is equal to or less than a predetermined value.
- a distribution of luminance values b (X) is obtained from two image data obtained at predetermined time intervals, and a luminance difference distribution is obtained by taking a difference between the distributions of the two luminance values b (x).
- the distribution of the luminance value b (x) does not change, so the absolute value of the luminance difference distribution is small overall.
- the distribution of the luminance value b (x) changes, so that the absolute value of the luminance difference distribution is a large value at least partially.
- the image processing determination unit 42 in this case has a failure when the absolute value of the luminance difference distribution obtained from two image data obtained at predetermined time intervals is at least a predetermined value or more. It is determined that an object exists.
- the cameras 34 to 36 that acquire the two-dimensional image data as the imaging means, it is possible to reduce the alignment accuracy of the cameras 34 to 36 with respect to the light emitter 32, and to reduce the installation effort. Can be reduced. In addition, the cost can be reduced by using a commercially available imaging device.
- the processing data size is reduced and the processing speed is reduced. Can be faster.
- the luminance distribution in the vertical direction is obtained from the two-dimensional image data by a predetermined calculation, and the presence / absence of an obstacle is determined based on the luminance distribution. Therefore, the two-dimensional image data is converted into one-dimensional luminance data. As a result, the processing speed can be further increased. Also, by converting to a one-dimensional luminance distribution, it is possible to determine the presence or absence of an obstacle as it is even if the light emitting surface is divided into a plurality.
- FIG. 30 is a sectional view of the light emitter 32 of the sliding door device according to the fourteenth embodiment of the present invention.
- a diffusion plate 64 that diffuses and transmits light is provided in front of the transparent light guide 47 in the sixth embodiment. That is, the diffusion plate 64 is disposed so as to face the front surface of the transparent light guide 47. The light emitted from the front surface of the transparent light guide 47 is scattered by the diffusion plate 64 and emitted from the front surface of the diffusion plate 64, that is, the light emitting surface 32a to the outside of the light emitter 32.
- Other configurations are the same as those in the sixth embodiment.
- the diffusion plate 64 in front of the transparent light guide 47, the light emitted from the transparent light guide 47 is evenly diffused in the vertical direction. According to the height of Accordingly, the light emitting surface image to be picked up becomes sufficiently bright, and the detection accuracy can be improved.
- FIG. 31 is a horizontal sectional view of the sliding door device for an elevator according to Embodiment 15 of the present invention
- FIG. 32 is a front view of the car door device of FIG. 31 viewed from the landing side.
- first and second light emitters 71 and 72 are provided in the vicinity of the car door storage portions 23 and 24 of the force cage 6 (on the landing side of the car door 22). That is, the first and second light emitters 71 and 72 are arranged to face each other with a space between the car entrance 10 and the landing entrance 12 interposed therebetween.
- the light emitters 71 and 72 irradiate the detection light 33 in the space between the force doors 21 and 22 and the landing doors 28 and 29 in parallel with the opening and closing direction of the force doors 21 and 22. Furthermore, the light emitters 71 and 72 have light emitting surfaces 71a and 72a that are long and continuous in the vertical direction.
- the imaging means is provided in the upper part of the first light emitter 71, and is provided in the lower part of the first camera 73 for imaging the light emitting surface 72a of the second light emitter 72 and the second light emitter 72. And a second camera 74 that images the light emitting surface 71a of the first light emitter 71.
- Other configurations are the same as those in the first embodiment.
- the detection range formed by the light emitters 71 and 72 and the cameras 73 and 74 is the entire surface between the light emitters 71 and 72. Therefore, it is possible to improve the reliability of the area that cannot be detected even when the car doors 21 and 22 and the landing doors 28 and 29 are fully opened.
- the present invention can be applied to the double-opening type sliding door device even if it is the force-opening type described above, and the number of force doors and landing doors is not particularly limited.
- the present invention can of course be applied to a traction type elevator device that uses the force-balanced weight shown for the saddle-type elevator device.
- the power of applying the present invention to an elevator for example, a double door type door device provided in a building, a door device including a train door and a platform door, etc., a sliding door other than an elevator.
- the present invention can also be applied to an apparatus.
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Elevator Door Apparatuses (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2007800147381A CN101426711B (zh) | 2006-05-31 | 2007-05-29 | 滑动门装置和电梯 |
EP07744301.8A EP2022745B1 (en) | 2006-05-31 | 2007-05-29 | Sliding door apparatus and elevator |
JP2008520504A JP5020240B2 (ja) | 2006-05-31 | 2007-05-29 | スライドドア装置及びエレベータ |
US12/294,433 US8115162B2 (en) | 2006-05-31 | 2007-05-29 | Sliding door apparatus and elevator including an obstruction detection system |
KR1020087025956A KR101051828B1 (ko) | 2006-05-31 | 2007-05-29 | 슬라이드 도어 장치 및 엘리베이터 |
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PCT/JP2006/310851 WO2007138688A1 (ja) | 2006-05-31 | 2006-05-31 | スライドドア装置及びエレベータ |
JPPCT/JP2006/310851 | 2006-05-31 |
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WO2007142074A1 true WO2007142074A1 (ja) | 2007-12-13 |
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PCT/JP2006/310851 WO2007138688A1 (ja) | 2006-05-31 | 2006-05-31 | スライドドア装置及びエレベータ |
PCT/JP2007/060881 WO2007142074A1 (ja) | 2006-05-31 | 2007-05-29 | スライドドア装置及びエレベータ |
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PCT/JP2006/310851 WO2007138688A1 (ja) | 2006-05-31 | 2006-05-31 | スライドドア装置及びエレベータ |
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US (1) | US8115162B2 (ja) |
EP (1) | EP2022745B1 (ja) |
KR (1) | KR101051828B1 (ja) |
CN (1) | CN101426711B (ja) |
WO (2) | WO2007138688A1 (ja) |
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Also Published As
Publication number | Publication date |
---|---|
CN101426711B (zh) | 2011-03-16 |
EP2022745A1 (en) | 2009-02-11 |
EP2022745B1 (en) | 2018-02-21 |
EP2022745A4 (en) | 2013-11-20 |
US20090108987A1 (en) | 2009-04-30 |
KR20090005046A (ko) | 2009-01-12 |
KR101051828B1 (ko) | 2011-07-25 |
WO2007138688A1 (ja) | 2007-12-06 |
CN101426711A (zh) | 2009-05-06 |
US8115162B2 (en) | 2012-02-14 |
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