JP2017124677A - Platform door device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a platform door device of which exchange of a hindrance object sensor and maintenance can be easily performed.SOLUTION: A platform door device which is provided along a marginal part of a platform and forms an entrance passage, which can be opened and closed, in cooperation with a similar platform door device adjacent to itself. The platform door device comprises: a slide door which opens/closes the entrance passage; a door pocket part which stores the slide door; and a hindrance object sensor which detects a hindrance object which may exist in a detection space between the slide door and a vehicle, and which is so located as to capable of being detached by operation from a platform side.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a platform door device installed on a platform of a station such as a railway.

  In order to prevent a person from falling from the platform of the station to the track side, a platform door device is installed along the edge of the platform. Such a platform door device is an indispensable component not only for railways but also for example in new traffic systems that perform automatic driving. The installation of home door devices has continued to expand, and various home doors have been developed so far.

  The platform door device forms an entrance / exit passage that faces an entrance / exit of a vehicle such as a railway, and the entrance / exit passage is typically opened and closed by a sliding door. The sliding door must be closed after it has been confirmed that there are no obstacles such as people or luggage between the sliding door and the vehicle. Therefore, the platform door device has an obstacle detection device for detecting such an obstacle.

  The home door device described in Patent Document 1 is an optical obstacle disposed on the track side of the door pocket in order to detect an obstacle that may exist between the sliding door and the vehicle. An obstacle detection device having a sensor (three-dimensional distance image sensor) is provided.

Japanese Patent No. 5507135

  The obstacle sensor has its detection space set between the rear side of the sliding door and the vehicle, and is therefore arranged on the track side of the door pocket. Therefore, in the conventional platform door device including the one in Patent Document 1, when the obstacle sensor is to be removed for failure or inspection, it is necessary to access from the track side to perform the work. . Therefore, the work is usually performed after the track is closed at midnight. As a result, according to the conventional platform door device, the work may not be performed in a timely manner, and the burden of applying for the closure of the track and executing it reliably has been heavy for the departments related to the railway company. In addition, failure of the obstacle sensor includes those caused by adhesion of dirt, etc. to the light emitting and receiving window or lens that the obstacle sensor normally has, so the failure of the obstacle sensor becomes the failure rate of the obstacle sensor alone. It should be noted that it occurred more frequently than the one based.

  The present invention has been made in view of the above-described problems of the prior art, and an object thereof is to provide a platform door device that can easily replace and maintain an obstacle sensor.

  In order to achieve the above-mentioned object, according to the present invention, an openable / closable entrance / exit passage is provided in cooperation with a similar platform door device disposed along and adjacent to the edge of the platform. A platform door device to be formed, which detects obstacles that may exist in a detection space set between a slide door that opens and closes an entrance / exit passage, a door pocket portion that houses the slide door, and the slide door and the vehicle. There is provided a platform door device comprising an obstacle sensor disposed so as to be detachable by work from the platform side.

  In the present invention, the obstacle sensor may be arranged so that it can be attached / detached not only by work from the home side but also by work from the track side.

  According to the present invention, the obstacle sensor is arranged so that it can be detached and attached by work from the home side, and therefore, the removal / removal work necessary for failure or inspection is performed to close the track. And it is possible to perform it in a timely manner.

It is the perspective view which looked at the platform door device by the embodiment of the present invention from the track side. It is a perspective view of the obstacle sensor of a home door apparatus. It is the perspective view which looked at the home door apparatus from the platform side, Comprising: It is the perspective view by which one part component was removed. It is the elements on larger scale which looked at the door pocket part of the platform door device from the platform side. FIG. 5 is a partially enlarged perspective view of a region different from FIG. 4 of the door pocket portion when viewed from the home side, and is a partially enlarged perspective view in which an obstacle sensor is removed together with its bracket. It is a perspective view which shows an obstruction sensor and its bracket. It is the elements on larger scale which looked at the home door device from the track side.

  Hereinafter, a platform door device according to an embodiment of the present invention will be described with reference to the accompanying drawings. In addition, although the platform door apparatus by this embodiment is demonstrated as what is installed in the platform of a railway station, a platform door apparatus is installed and used for platforms, such as traffic systems other than a railway, for example, a monorail system. It will be understood that this is also possible.

  FIG. 1 is a perspective view of the platform door device 1 according to the present embodiment as viewed from the track side. The platform door device 1 cooperates with a similar platform door device (not shown) disposed adjacent to the platform door device 1 to form an opening / closing passage that can be opened and closed therebetween. FIG. 1 shows a state in which a slide door 10 included in the platform door device 1 is extended to close the entrance / exit passage. In the present specification, the side closer to the track of the platform door device 1 is called the track side or the back side, and the side far from the track is called the home side or the front side.

  The platform door device 1 according to the present embodiment is capable of moving a pair of slide doors 10 that reciprocate substantially parallel to a direction in which a track (not shown) extends in order to open and close the entrance / exit passage, and the pair of slide doors 10. A door pocket 20 for supporting and storing, a drive device (not shown) comprising an electric motor, a toothed belt, and a pulley for driving the slide door 10, a control device 30 (FIG. 3), and an obstacle sensor 40. Moreover, the platform door device 1 according to the present embodiment further includes three feet 50 for installation on a platform (not shown) on the bottom of the door pocket 20.

  The slide door 10 of the home door device 1 is formed in a rectangular panel shape, and is supported so as to be movable in the door pocket portion 20 by a door support device (not shown). When the sliding door 10 closes the entrance / exit passage, its tip end abuts against the tip end of a similar slide door (not shown) of the adjacent home door device, and when the entrance / exit passage is open. Most of it is stored in the door pocket portion 20 except for a small portion at the tip.

  In the present embodiment, the door pocket portion 20 is formed in a substantially rectangular parallelepiped shape, and includes a horizontally long rectangular frame 24 and a plurality of vertically long rectangular panels. The back side of the door pocket 20 is covered with three panels, that is, the first back panel 21 on the left side in FIG. 1, the second back panel 22 in the center, and the third back panel 23 on the right side. An elongated rectangular parallelepiped protrusion 70 is fixed to the third back panel 23, and the protrusion 70 prevents intrusion from entering the back of the door pocket 20 from the passenger passage. It functions as the projecting portion 70.

  An optical obstacle sensor 40 is disposed on the first rear panel 21 on the left side of FIG. 1. Most of the obstacle sensor 40 is covered by a substantially inverted L-shaped sensor box 60. Yes. An emergency unlocking button 80 for forcibly opening the closed entrance / exit passage in an emergency or the like is attached to the sensor box 60 obliquely at the upper left of the obstacle sensor 40. An embodiment in which the sensor box is provided as a dedicated sensor box for the obstacle sensor 40 without attaching the emergency unlock button 80 is also possible.

  The obstacle sensor 40 in the present embodiment is an optical sensor, and is an obstacle such as a person or an object existing in a detection space (not shown) set between the rear side of the slide door 10 and the vehicle. It is arranged to detect. More specifically, the obstacle sensor 40 is composed of a three-dimensional distance image sensor having a MEMS resonant mirror, and irradiates near-infrared pulse laser light into a detection space and vibrates along a plurality of scanning axes. The mirror scans the space up and down and left and right while drawing a Lissajous locus, measures the distance to the obstacle by the round-trip time until the laser beam reflects off the obstacle, and the intensity of the reflected light at the coordinates Is to measure. Then, the position coordinates of the object in the detection space are specified from the distance data and the irradiation angle of the laser beam, and the size of the object is also determined by scanning the object and continuously acquiring the measurement data. can do. In addition, data obtained by the obstacle sensor 40 is output to a processing unit and a detection control unit (not shown) constituting the control device 30.

  As shown in FIG. 2, which is an external perspective view, the obstacle sensor 40 includes a substantially rectangular parallelepiped sensor body 41 and a mounting panel 42 provided on the front side of the sensor body 41. A rectangular light emitting / receiving window 43 for emitting laser light and receiving reflected light is provided on the mounting panel side of the sensor main body 41. The mounting panel 42 is provided with a square hole corresponding to the light emitting / receiving window 43. A data output connector 44 and a power connector (not shown) are provided on the side of the sensor body 41 opposite to the light emitting / receiving window 43.

  FIG. 3 is a perspective view of the platform door device 1 according to the present embodiment as viewed from the platform side with the slide door 10 extended. As shown in FIG. 3, the front side of the door pocket 20 also includes three vertically long rectangular panels, that is, the first front panel 25 on the right side, the second front panel 26 in the center, and the third front side on the left side. Covered by the panel 27. In FIG. 3, the first front panel 25 is removed and the first control panel 31, which is one of the components of the control device 30, is removed for explanation. In FIG. 3, the second control panel 32, which is another component of the control device 30, is fixed to the door pocket 20.

  FIG. 4 is a perspective view seen from the home side, showing a state in which the first control panel 31 is fixed to the door pocket. As shown in this figure, the first control panel 31 is fixed to two frame members 24a and 24b extending vertically inside the door pocket portion 20 at four ear portions 31a. Since the ear portion 31a is not formed with a round hole but is formed with an inverted U-shaped notch opened downward, the first control panel 31 can be simply opened by loosening the four mounting screws 33. It is possible to remove from the frame members 24a and 24b.

  In FIG. 3 in which the first front panel 25 and the first control panel 31 are removed, the inner surface of the first rear panel 21 and the obstacle sensor 40 attached thereto via a bracket 45 can be seen. FIG. 5 is a perspective view corresponding to the partially enlarged view of FIG. 3, in which the bracket 45 to which the obstacle sensor 40 is fixed is attached from the inner surface of the first back panel 21 to the front side of the door pocket portion 20. The state being removed is shown. The first rear panel 21 has a square hole 21a through which most of the bracket 45 can pass. In FIG. 5, the inner surface of the sensor box 60 can be seen through the square hole 21a.

  As shown in FIGS. 5 and 6, the bracket 45 is formed in a box shape in which two surfaces of the obstacle sensor 40 on which the connector 44 is provided and the front surface side of the door pocket portion 20 are opened. Mounting flange portions 45a are provided on the upper and lower sides. The bracket 45 can be fixed to the first back panel 21 by a mounting flange portion 45 a and four bracket fixing screws 46. Further, the mounting panel 42 of the obstacle sensor 40 is fixed to the right side surface of the bracket 45 in FIG. 6 by four panel fixing screws 47. Therefore, a square hole (not shown) through which the sensor main body 41 can penetrate is formed in the right side surface of the bracket 45 in FIG.

  Since the obstacle sensor 40 is arranged in the above-described manner, when the slide door 10 is extended, the operator removes the first front panel 25 of the door pocket 20 and then removes the first control panel 31. If removed, the bracket 45 to which the obstacle sensor 40 is fixed can be accessed. Then, the operator loosens and removes the four bracket fixing screws 46 of the mounting flange portion 45a of the bracket 45, removes the bracket 45 from the first back panel 21, and pulls it out a little before moving to the obstacle sensor 40 with the connector 44. By disconnecting the electric cable (not shown) connected via the bracket 45, the obstacle sensor 40 can be removed from the door pocket 20 together with the bracket 45. In order to remove the obstacle sensor 40 from the bracket 45, the four panel fixing screws 47 may be loosened and removed. Moreover, what is necessary is just to perform the procedure contrary to the above-mentioned procedure when attaching the obstruction sensor 40.

  Thus, in the platform door apparatus 1 by this embodiment, the obstruction sensor 40 is arrange | positioned so that removal | desorption is possible by the operation | work from a platform side. Therefore, when the obstacle sensor 40 needs to be replaced or inspected, it can be quickly detached from the home side without closing the track.

  Furthermore, as shown in FIG. 7, which is a partial enlarged perspective view of the first back panel 21 of the door pocket portion 20 as viewed from the track side, in the platform door device 1 according to the present embodiment, the bracket 45 is attached to the door pocket portion 20. In the fixed state, the obstacle sensor 40 can be removed from the bracket 45 by accessing the obstacle sensor 40 from the track side. Therefore, the sensor box 60 is provided with a notch 60 a larger than the mounting panel 42 of the obstacle sensor 40. The operator accesses from the track side, loosens and removes the four panel fixing screws 47 of the mounting panel 42, removes only the obstacle sensor 40 from the bracket 45, pulls it out slightly, and then disconnects the electric cable. Thus, it can be removed from the door pocket 20. In addition, the operation | work in this case can be implemented even if the slide door 10 is an expansion | extension state and a retracted state. Moreover, what is necessary is just to perform the procedure contrary to the above-mentioned procedure when attaching the obstruction sensor 40.

  As described above, in the platform door device 1 according to the present embodiment, the obstacle sensor 40 is disposed so as to be detachable even by work from the track side. Therefore, if there is an opportunity to close the track, the obstacle sensor 40 can be replaced or inspected at that time.

  In the above-described embodiment, the obstacle sensor 40 is separate from the processing unit and the detection control unit, but the obstacle sensor 40 includes the processing unit and the detection control unit integrally. Certain embodiments are possible.

  In the above-described embodiment, the obstacle sensor 40 is composed of a three-dimensional distance image sensor using a laser beam and a vibrating mirror, but the obstacle sensor 40 is not limited to such a type. For example, an embodiment in which the obstacle sensor 40 is configured by a simpler photoelectric sensor using light emitted from an LED is also possible.

  In the above-described embodiment, when the obstacle sensor 40 is detached from the home side, the slide door 10 needs to be in the extended state. However, even when the slide door is in the retracted state, the obstacle sensor 40 is used. Embodiments capable of desorbing are also possible. This can be realized by substituting the panel-like slide door that does not have a hole through which the track side can be seen from the home side in the above-described embodiment, for example, with a slide door that is substantially composed of only a frame member. A portion of the slide door other than the frame member is formed with a large hole through which the track side can be seen from the home side, so that the effect of the hole allows the first through the large hole even when the slide door is stored. The bracket 45 for fixing the control panel 31 and the obstacle sensor 40 can be accessed from the home side and can be detached.

DESCRIPTION OF SYMBOLS 1 Home door apparatus 10 Sliding door 20 Door bag part 21 1st back panel 25 1st front panel 31 1st control panel 32 2nd control panel 40 Obstacle sensor 41 Sensor main body 42 Mounting panel 43 Light emitting / receiving window 45 Bracket 60 Sensor box

Claims (2)

A platform door device that is disposed along an edge of the platform and cooperates with a similar platform door device disposed adjacently to form an openable / closable entrance passage,
A sliding door that opens and closes the entrance / exit passage;
A door pocket for storing the sliding door;
An obstacle sensor that detects an obstacle that may exist in a detection space set between the sliding door and the vehicle, and is disposed so as to be detachable by work from the home side. When,
A platform door device comprising:   The platform door device according to claim 1, wherein the obstacle sensor is arranged so that it can be attached and detached not only by work from the platform side but also by work from the track side.

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