JP5500670B2 - Home door device - Google Patents

Description

  The present invention relates to a platform door device, and more particularly to a platform door that is installed in a station platform to ensure passenger safety, and includes a new door support mechanism, a door drive mechanism, and a see-through structure, and is also suitable for increasing the size of a door. Relates to the device.

  In railroad station platforms (station platforms or platforms), platform fences or platform door devices are installed to ensure the safety of passengers getting on and off trains (trains). In the home door device, the door is closed when the train enters the station platform, and the passenger and the train are separated as a part of the fence. The home door device includes a door (movable part) that can be opened and closed by moving back and forth along the edge of the station platform, and a door housing part (fixed part) that houses the door. A mechanism for supporting the door and a door drive mechanism for moving the door forward and backward are provided inside the door casing. In the home door device, passengers get on and off with the door opened, that is, with the door housed in the door casing.

  At present, the platform door device that is widely used has a door width of 1.5 m. In order to get on and off, the length of the opening area is 1.5 (m) × 2 and 3 m in length because the door casings are installed on both sides and the doors advance and retract from each side. ing. This is the size of a standard type platform door device.

One door housing part advances and retracts the door via each of door advancement and withdrawal openings formed on both sides. As shown in FIGS. 10 and 11, two doors 102 and 103 located on each of the home side and the track side are erected and parallel to each other inside one door casing 101. Contained. In the standard-type platform door device, the platform door 102 is attached in a suspended state to a rail 104 provided at an intermediate position in the height direction on the platform side wall structure of the door casing 101. That is, the suspension mechanism 106 is attached to a linear guide 105 provided so as to slide on the rail 104. The home side door 102 is provided so as to move on the rail 104 by a corresponding door drive mechanism (such as a motor 107). On the other hand, the line-side door 103 is disposed in the rail 109 provided in the bottom 108 of the door casing 101. That is, the hinge support mechanism 111 supports the linear guide 110 disposed on the rail 109 at a position shifted in the thickness width direction of the door casing 101 with respect to the installation position of the rail 109. The track-side door 103 is provided so as to be movable on the rail 109 by another corresponding door driving device (such as the motor 112). The motors 107 and 112 of each of the two door driving devices are disposed on the side of the home side wall 113 of the door casing 101.

  The rail structure of the two doors 102 and 103 housed inside the door casing 101 in a standard type home door apparatus that is currently widely used is as wide as possible. In order to make it narrower, the platform door 102 uses the rail 104 and the suspension mechanism 106 provided at an intermediate height, and the track side door 103 uses the structure of the bottom rail 109. Therefore, a moment load (arrow 114) is generated for the track side door 103.

  Furthermore, according to the arrangement position of the door support mechanism and the door drive mechanism inside the door housing 101, the rail is utilized by using the space in which the intermediate height position of the wall structure on the home side exists, particularly with respect to the home side door 102. 104, a motor 107, and a power transmission belt are arranged. For this reason, for example, when it is necessary to form a window portion on the door housing portion 101 that can see the track side from the home side, a mechanism element arranged inside the door housing portion 101 becomes an obstacle, and the window portion is It is very difficult to form. In addition, a structure in which a window portion provided with a transparent member is formed in a door casing portion or a door so that the track side can be seen from the home side through the window portion is referred to as a “see-through structure”. .

  As conventional platform door devices, devices disclosed in Patent Literature 1 and Patent Literature 2 below are known.

  In the home door device disclosed in Patent Document 1, a linear motor is used as a door moving mechanism for moving a door (door) provided to be opened and closed from a door pocket. The linear motor includes a primary side member having a winding and a secondary side member having a magnetic mover. The primary side member is fixed to the door, and the secondary side member is fixed to the door pocket. The door pocket is provided with a travel path at an intermediate height position in the height direction, and on the other hand, a sliding member that travels along the travel path is attached to the door. This home door device has a structure in which one door is accommodated in one door pocket. In Patent Document 1, the structure of the door driving device is simplified and a large output can be obtained.

  The platform door device disclosed in Patent Document 2 proposes a structure for forming a door pocket in a compact manner. In this home door device, a rail is provided on the door panel side, and a rail guide is provided on the door pocket panel side. The rail guide of the door pocket panel engages with the rail of the door panel and guides the rail slidably. Referring to FIG. 4 and the like, in this home door device, one door panel includes a single door panel, and a door moving mechanism is provided using the lower region of each of the door pocket panel and the door panel.

JP-A-2006-168552 JP 2005-138725 A

  Depending on the railway station, there is a station platform where various types of trains with different numbers or positions of entrances and exits stop. When installing a platform door device in such a station platform, the open / close door needs to be able to accommodate all train entrances and exits. To that end, standard type platform door devices cannot be used. In other words, in the case of a standard type platform door device, the position of the platform door opening area formed between two adjacent platform door devices may not match the position of the entrance / exit of the stopped train. Can occur.

  In order to solve the above problem, a large platform door device having a large door width is required. In this case, the door width is 2.3 m, for example. For this reason, in order to get on and off, the length of the opening region is 2.3 (m) × 2 and a length of 4.6 m. If the opening area between two adjacent home door housing parts is designed to such a length, it can correspond to the above-mentioned various types of train doors.

When a large-sized platform door device having the above dimensions is manufactured using the structure of the standard-type platform door device, the following problems occur.
(1) Since the mechanism that supports the home-side door 102 is the suspension mechanism 106, the rail 104 is provided in the air at an intermediate height, and the home-side door 102 is in a floating state. For this reason, when the home side door 102 moves along the rail 104, the rail 104 bends and the home side door 102 tends to move up and down periodically. This tendency becomes conspicuous as the door becomes larger, and it must be a housing opening (door entrance / exit) considering this vertical movement, which is a serious problem in terms of product appearance.
(2) Since the track side door 103 is connected to the linear guide 110 slidably mounted on the rail 109 via the hinge support mechanism 111, the moment load 114 is applied to the linear guide 110. Will occur. A state in which a moment load is applied to the linear guide 110 moving on the rail 109 is undesirable in terms of structure.
(3) In the current standard type home door device, since the rail 104 and the like are arranged at a substantially intermediate portion in the height direction of the door casing 101, a see-through structure cannot be easily provided. In particular, in a large-sized home door device, since the shape of the door casing portion is large, it is desired to form a window portion that allows the line side to be seen from the home side.

  Further, when the size of the home door device is increased, in particular, the door casing portion provided to accommodate two large doors that move forward and backward through slit-like door openings on both end wall portions has a thickness width. The size tends to increase. It is desired that the dimension of the thickness width of the door casing portion of the large-sized home door apparatus is as small as possible.

  Furthermore, the see-through structure particularly in the door housing part can provide information on the track side to the user on the platform side not only in the large platform door device but also in the standard type platform door device. This is an extremely important element in terms of improving safety at the station platform.

  In view of the above problems, an object of the present invention is to provide a large door that can widen an opening area for a passage for getting on and off, and a compact door pocket that can accommodate two large doors that can be moved forward and backward. It has a structure and can be moved stably and smoothly by preventing the vertical movement of the door when moving the door for forward and backward movement for opening and closing, eliminating the structure that generates moment load, and reducing the thickness of the door casing To provide a large-sized home door device that can be made as thin as possible and that can further be provided with a see-through structure in the door casing itself by forming transparent windows in the two doors and the door casing. It is in.

  Still another object of the present invention is to provide a door support mechanism and a door drive mechanism that enable a novel see-through structure in the door casing and can smoothly advance and retract for opening and closing the door. Another object of the present invention is to provide a platform door device suitable for the above.

  The platform door device according to the present invention is configured as follows to achieve the above object.

The first platform door device (corresponding to claim 1) is housed in a state parallel to the door casing portion installed along the track-side edge of the station platform, and the interior of the door casing portion as a prerequisite. Each of the two home doors that can be opened and closed by advancing and retracting through the door openings of the end wall portions at both ends of the door housing portion, and two home doors provided in the door housing portion. Two rails for guiding each movement operation and two sets of door drive devices that enable the movement operation are provided . The two rails are arranged in parallel to the bottom of the door casing, The home door is located directly above the two rails . In this home door device, one of the door driving device for the home side home door and the door driving device for the track side home door is arranged near the bottom of the door housing , and the other is the door housing. It was arranged near the upper wall of the body and a see-through structure was provided in the middle.

In the above-described platform door device, the two platform doors housed in the door housing are arranged directly above each of the two rails installed in parallel to the inner surface of the bottom of the door casing. All loads from the platform doors are applied linearly to each rail, preventing moment loads from being applied. In addition, since the suspension structure is not employed, it is possible to prevent the vertical movement of the platform door when it moves. In addition, the door drive mechanism of each of the two home doors is positioned near the bottom ( for example , the home door on the front side of the home) and near the upper wall ( for example , the home door on the back of the track), thereby providing a door housing. Open the middle height position in the interior space of the unit, which makes it possible to provide a window in the door housing, and also easier maintenance of the door support mechanism and door drive mechanism of each home door Can be done. In addition, by providing a see-through structure in the middle part, the line side visibility was improved.

  In the second platform door device (corresponding to claim 2), preferably, each of the two rails is provided with a slidable linear guide, and each of the two platform doors includes: It is mounted on a corresponding linear guide.

  The third platform door device (corresponding to claim 3) is preferably configured so that each of the two sets of door driving devices is rotatably spanned in the length direction of the motor and the door casing. And a motor of a door driving device arranged in the vicinity of the bottom, and an upper wall. The belt is composed of a belt fixed to a corresponding home door and power transmission means for converting the driving force of the motor into a rotational movement of the belt. The motor of the door drive device arranged in the vicinity of the part is installed at a location close to one of the end wall parts at both ends.

  In the fourth platform door device (corresponding to claim 4), in the above configuration, preferably, an open space in which nothing is arranged in the middle in the height direction is formed inside the door casing. Features.

  In the above configuration, the fifth platform door device (corresponding to claim 5) is preferably located at a height position of the middle portion of each of the home side front side wall and the track side rear side wall of the door casing. It is characterized by providing a window portion for viewing using an open space.

  In the sixth platform door device (corresponding to claim 6), in the above-mentioned configuration, preferably, a window portion is provided at a central height position of each of the two platform doors, and the two platform doors are doors. When housed in the housing, the positions of the window portions of the door housing and the two home doors coincide with each other so that the track side can be seen from the home.

  According to the present invention, in the platform door device, the two platform doors housed in the door housing unit are arranged directly above each of the two rails installed in parallel to the bottom of the door housing unit. Therefore, all the load by the platform door is applied to each rail in a straight line, and it is possible to prevent the moment load from being applied, and it is possible to prevent periodic fluctuations in the vertical direction when the platform door is opened and closed. Smooth door opening and closing can be performed. In addition, regarding the installation position of the door drive mechanism of each of the two home doors, the home side home door is located near the bottom of the door casing, and the track side home door is located near the top wall of the door casing. The built-in element is not disposed at an intermediate height position in the interior space of the door housing portion, and the location at the height position is opened, whereby a window portion can be provided in the door housing portion. The thickness width dimension of the body part can be reduced, and the maintenance of the door support mechanism and door drive mechanism of each home door can be easily performed.

It is a front view which shows the large sized platform door apparatus which concerns on typical embodiment of this invention. It is a front view when the home door in a door housing | casing part is advanced to the right and left with the platform door apparatus shown in FIG. It is a top view of two adjacent platform door apparatuses installed in the station platform. It is a top view which shows the arrangement | positioning state of the two home doors of the state accommodated in the door housing | casing part. It is a front view which shows the structure of the internal state of a door housing | casing part when sending out two home doors to the outer side final position of the left-right direction. It is a top view which shows the internal structure of a door housing | casing part. It is the perspective view which looked at the door housing | casing part shown in FIG. 5 from the upper right. It is a perspective view which shows the external appearance of a door housing | casing part. It is a side view which shows the attachment relation of the principal part of the door support mechanism in a door housing | casing part. It is a front view which shows the principal part of the internal structure of the conventional standard type platform door apparatus. It is a side view which shows the principal part of the internal structure of the conventional standard type platform door apparatus.

  DESCRIPTION OF EMBODIMENTS Preferred embodiments (examples) of the present invention will be described below with reference to the accompanying drawings.

  FIG. 1: shows the front view of one Embodiment of the platform door apparatus which concerns on this invention. FIG. 1 shows a front view of one platform door device installed on the floor of a station platform and viewed from the platform side. In this illustrated example, the two home doors are housed in the door casing. FIG. 2 also shows a front view of the platform door device. In this case, two platform doors in the door casing are pulled out to the left and right sides and advanced to the final position. FIG. 3 shows a plan view of two adjacent platform door devices installed in the station platform. FIG. 4 is a plan view showing an arrangement state of two home doors accommodated in the door casing.

  In the description of the platform door device of this embodiment, an example of a large platform door device different from the conventional standard type will be described. The characteristic structural part of the platform door device according to the present invention has been conceived as suitable for a large platform door device, but on the other hand, it is not limited to a large platform door device, Of course, the characteristic configuration can be applied to a conventional standard type platform door device.

  The entire platform door device 10 is installed on the platform floor along the edge 11 </ b> A on the track side 12 in the station platform 11. Normally, the required number of platform door devices 10 is arranged and fixed in the platform door device 10 corresponding to the position of each vehicle door of the train that enters the station platform 11 and stops. As shown in FIG. 3, an opening area 13 formed between two adjacent platform door devices 10 is a passage opening area for getting on and off a train that has stopped. The platform door device of the present embodiment is formed in a large size. In the case of this large platform door device 10, the length (width W1) of the passage opening area 13 for getting on and off is set to 4.6 m, for example. Since it is such a large platform door device 10, the width (W1) of the wide opening area 13 for the passage can be adapted to various types of trains having different numbers and positions of vehicle doors. In other words, even if various types of trains with different numbers and positions of vehicle doors enter, the platform door device allows passengers to get on and off without any trouble.

  In FIG. 2, the two home doors 15 and 16 housed in the door housing part 14 at the stage before the train (train) arrives at the station platform are the end wall parts at both ends of the door housing part 14. The state which protruded from the slit-shaped door opening part of this and progressed, and the said opening area 13 for a passage was closed is shown. In FIG. 1, the two home doors 15 and 16 are retracted into the door casing 14 and the passage opening area 13 is opened. FIG. 4 shows an arrangement state of the two home doors 15 and 16 accommodated in the door casing 14. The platform doors 15 and 16 provided in an upright manner are arranged in parallel to each other and in a positional relationship in which most of the doors are substantially overlapped. In the platform door device 10 shown in FIGS. 1 and 2, the platform door 15 on the station platform 11 side moves forward and backward in the door housing section 14 as shown in FIG. 4, for example. The platform door 16 on the track side 12 is configured to advance and retract in the left direction.

  In addition, in the two adjacent platform door apparatuses 10 as shown in FIG. 3, the arrangement positions of the two platform doors on the station platform side and the track side are actually different. That is, the platform door device 10 on the left side in FIG. 3 advances and retracts the platform platform-side platform door 15 in the right direction and the track-side platform platform door 16 in the left direction as described in the present embodiment. The platform door device 10 on the right side in FIG. 3 is configured to advance and retract the station platform side home door 15 in the left direction and to advance and retract the track side platform door 16 in the right direction. As a result, when the platform door 15 on the station platform 11 side is moved outward from the two platform door devices 10 on the left and right, the leading ends of both platform doors 15 come into contact with each other, and the passage opening area 13 It is closed by two home doors 15. In addition, about another structure, it is the same in the two platform door apparatuses 10 on either side.

  For example, three window portions 17 are formed in the door casing portion 14 of the home door device 10 at a substantially intermediate position in the height direction when viewed from the front portion. Passengers in the station platform 11 can see the track side 12 from the platform side through the three windows 17 of the door casing unit 14. In order to provide the window part 17, the window part is formed in each of the home side front side wall in the door housing | casing part 14, and the track side back side wall. Furthermore, in the inside of the door housing | casing part 14, the area | region of an intermediate | middle height position is formed as an open space in which nothing is arrange | positioned regarding internal devices, such as a door drive mechanism. Each of the two home doors 15, 16 is also formed with a plurality of window portions 18 so as to correspond to the three window portions 17 in the middle region in the height direction. In a state where the two home doors 15 and 16 are accommodated in the door housing portion 14, the window portions on the home side front side wall and the track side rear side wall of the door housing portion 14, and the home doors 15 and 16, respectively. The window portion 18 is arranged at a position that is wholly or partially coincided with the window portion 18 so as to allow a line of sight.

  Each of the window portions 17 and 18 is made, for example, by fitting transparent tempered glass or reinforced plastic into a rectangular opening.

  When viewed from the front, the door housing portion 14 of the home door device 10 according to the present embodiment is formed of three compartments based on the frame structure, and the window portion corresponds to each of the three compartments. 17 is formed.

  Next, the internal structure of the platform door device 10 and the mechanism provided therein will be described with reference to FIGS. Inside the door housing portion 14 of the home door device 10 is provided with a door pocket structure for the two home doors 15 and 16. The door pocket structure of the two home doors 15 and 16 includes a door support mechanism and a door drive mechanism, respectively.

  FIG. 5 is a front view showing the structure of the internal state of the door casing 14 when the home doors 15 and 16 are sent to the final position outside in the left-right direction. In FIG. 5, the front side wall (three panel walls), the rear side wall (three panel walls), the upper wall portion, the control device, and the like are removed, and illustration thereof is omitted. 6 is a plan view of FIG. FIG. 7 is a perspective view of FIG. 5 viewed from the upper right side. FIG. 8 is a perspective view seen from the upper right side of the door housing part 14 having a front side wall and an upper wall part. FIG. 9 is a view showing a main part structure of a door support mechanism for supporting the home door.

  As shown in FIG. 8, the exterior portion of the door housing portion 14 is composed of end wall portions 21 on both sides, a front side wall 22, a bottom portion 23, an upper wall portion 24, and a rear side wall (not shown). It is formed in a box shape. The frame structure is formed by the bottom portion 23 and the two end wall portions 21 at both ends. In this frame structure, two support columns 25 are provided on each of the front side and the back side. The front side wall 22 and the back side wall are provided between the end wall portions 21 on both sides and the two support posts 25 on the front side and the back side. The front side wall 22 and the back side wall are three panel walls. The upper wall portion 24 is provided so as to close the upper portion of the door housing portion 14.

  As described above, the window portion 17 is formed on the front side wall 22 and the rear side wall corresponding to each of the three sections. In addition, slit-shaped door openings 26 are formed in the end wall portions 21 on both sides of the door casing 14. The two home doors 15 and 16 accommodated in a structure that allows entry / exit in the door housing part 14 perform an entry / exit operation through a slit-like door opening 26.

  Two rails 27 and 28 are fixed to the bottom 23 in the door casing 14 in parallel with the longitudinal direction of the bottom. The rail 27 on the station platform side is a rail for supporting and moving the platform door 15. The rail 28 on the track side is a rail for supporting and moving the home door 16.

Two linear guides 31 are attached to the rail 27 on the station platform side so as to be slidable or rollable. The two linear guides 31 are provided with a door support frame portion 32 that is disposed with a gap therebetween and supports the rear end portion (the left end portion in FIGS. 5 and 7) of the home door 15. The door support frame portion 32 has two parallel plate members disposed with a gap as shown in Figure 7, two along a common lower side portion of the two plate members linear guide 3 1 but that has been mounted at a distance. As shown in FIGS. 7 and 5, the lower portion of the rear end portion 15 </ b> A (frame structure portion) of the home door 15 is fixed between two parallel plate members of the door support frame portion 32. Thus, the rear end of the home door 15 is fixed to the door support frame 32 provided on the linear guide 31 and is supported by the support frame 32. The platform door 15 is disposed at a position directly above the rail 27 via the linear guide 31 with respect to the rail 27. When the home door 15 moves forward and backward on the rail 27 by the two linear guides 31, the home door 15 moves at a position directly above the rail 27. The lower side portion of the home door 15 is supported by the door support frame portion 32 provided with the linear guide 31 as described above, and the upper side portion thereof is a guide member provided along the upper wall portion 24 of the door housing portion 14 ( (Not shown in FIG. 5). The guide member is disposed so as to be parallel to the rail 27. With the door support structure described above, the platform door 15 is moved directly above the rail 27 when the platform door 15 is moved by the forward / backward movement, so that the platform door 15 is prevented from moving up and down by the rail 27, and the platform door 15 is moved by a guide member or the like. Suppresses lateral shaking.

  Similarly, the two linear guides 33 are attached to the rail 28 located on the track side so as to be slidable or rollable. The two linear guides 33 include a door support frame portion 34 that supports the rear end portion (the right end portion in FIGS. 5 and 7) of the home door 16. The home door 16 is fixed to a door support frame portion 34 including two linear guides 33 based on the mounting structure as described above at the lower part of the rear end portion 16A (frame structure portion). 34 is supported. The platform door 16 is disposed at a position directly above the rail 28 via the two linear guides 33 with respect to the rail 28. When the home door 16 moves forward and backward on the rail 28 by the linear guide 33, the home door 16 moves at a position directly above the rail 28. The lower side portion of the home door 16 is supported by the door support frame portion 34 provided with the linear guide 33 as described above, while the upper side portion thereof is a guide provided along the upper wall portion 24 of the door housing portion 14. A member (not shown in FIG. 5) is supported so as to be guided. The guide member is disposed so as to be parallel to the rail 28. With the door support structure described above, when the home door 16 is moved by the forward / backward movement, the rail 28 is moved right above the rail 28, so that the home door 16 is not shaken in the vertical direction by the rail 28, and the home door 16 is further moved by the guide member or the like. Suppresses lateral shaking.

  In the side view shown in FIG. 9, the two rails 27 and 28 in the door housing portion 14, the linear guides 31 and 33, the door support frame portions 32 and 34, the home doors 15 and 16, and the guide member 35. , 36 is shown.

Next, the door drive mechanism of the home door 15 will be described. Reference numeral 41 denotes a belt having an annular shape. The annular belt 41 corresponds to a support belt wheel 42 rotatably attached to a position corresponding to the lower side of the inner surface portion of the left end wall portion 21 and the lower side of the inner surface portion of the right end wall portion 21. It is hung between the drive belt wheel 43 attached to the place. The belt 41 is stretched with an appropriate tension by appropriately adjusting the distance between the drive belt wheel 43 and the support belt wheel 42. The drive belt wheel 43 is connected to the drive shaft of the motor 44 through a power transmission mechanism. Belt 41, the support pulley 42, the drive pulley 43, and a door driving mechanism consisting of a motor 4 4 mag, arranged on the area below the region in which the window portion 17 described above in the door casing 14 is formed Has been. With respect to the belt 41 configured as described above, a door support frame portion 32 that supports the home door 15 is connected to a lower portion of the annular belt 41 by a connection fitting 45. 5 and 7 and the like, the belt 41 moves counterclockwise, the linear guide 31 moves right on the rail 27, and the door support frame 32 moves to the right end position. Shows the state. Thereby, the closing operation (advancing operation) of the platform door 15 is completed. In the state shown in FIG. 5 and the like, when the belt 41 moves clockwise, the linear guide 31 moves leftward on the rail 27, and the door support frame portion 32 moves to the left end position. Thereby, the opening operation (retraction operation) of the platform door 15 is completed. The operation of the motor 44 for opening and closing the home door 15 is performed in accordance with the entrance of the train, the opening and closing timing of the entrance door of the train, and the like, and is controlled by a control device (not shown).

  Furthermore, the door drive mechanism of the other home door 16 is demonstrated. Also in the door drive mechanism of the home door 16, a belt 51 having an annular shape is provided. The annular belt 51 corresponds to the support belt wheel 52 rotatably attached to a position corresponding to the substantially upper end of the inner surface portion of the right end wall portion 21 and the substantially upper end of the inner surface portion of the left end wall portion 21. It is hung between the drive belt wheel 53 attached to the place to be. The belt 51 is stretched with an appropriate tension by appropriately adjusting the distance between the driving belt wheel 53 and the support belt wheel 52. The drive belt wheel 53 is connected to the drive shaft of the motor 54 through a power transmission mechanism. The door drive mechanism including the belt 51, the support belt wheel 52, the drive belt wheel 53, the motor 54, and the like is a region located above the region where the window portion 17 described above is formed in the door housing portion 14. The upper door portion 16 is disposed at substantially the upper end portion above the upper side portion. With respect to the belt 51 configured as described above, the upper frame portion of the rear end portion 16A of the home door 16 is connected to the lower portion of the annular belt 51 by a connecting fitting 55 (shown in FIG. 5). . In the state shown in FIGS. 5 and 7, the belt 51 moves clockwise, the linear guide 33 moves to the left on the rail 28, and the door support frame 34 moves to the left end position. Indicates the state. Thereby, the closing operation (advancing operation) of the platform door 16 is completed. When the belt 51 moves counterclockwise in the state shown in FIG. 5 and the like, the linear guide 33 moves rightward on the rail 28 and the door support frame 34 moves to the right end position. Thereby, the opening operation (retraction operation) of the home door 16 is completed. The operation of the motor 54 for opening and closing the home door 16 is performed in accordance with the train entry / exit timing of the entrance / exit door of the train, and is controlled by a control device (not shown).

  Since the opening and closing operations of the two home doors 15 and 16 are performed simultaneously, the operations for opening and closing the doors of the two door driving mechanisms are performed in synchronization by a control device (not shown).

The door support mechanism and the door drive mechanism described above have the following advantages.
First, the door support mechanism of each of the two home doors 15 and 16 is installed with two rails 27 and 28 that are parallel to the inner surface of the bottom 23 of the door casing 14 and is directly above the rails. The home doors 15 and 16 are arranged. As a result, the weights of the platform doors 15 and 16 are supported by the rails 27 and 28, so that the platform doors 15 and 16 move up and down to move up and down. Can be suppressed.
Secondly, since the door support mechanism as described above is provided, the entire load of the home doors 15 and 16 is applied to the rails 27 and 28, so that no moment load is generated and the platform door is unstable when moving. This has the advantage that no abnormal state occurs.
Third, the mechanism part of the door drive mechanism for moving the home doors 15 and 16 is arranged in the lower and upper areas corresponding to the intermediate height position of the door housing section 14. As a result, the object is not disposed in the region of the intermediate height position and is opened, so that at least one window portion 17 can be formed in the door housing portion 14 as described above.

  In the above description of the embodiment, the large-sized home door device has been described. However, the door support mechanism, the configuration of the door drive mechanism, the arrangement relationship in the door housing unit, and the door housing for the two home doors which are characteristic configurations. About the structure etc. which concern on arrangement | positioning of the window part in a part, it can apply also to a standard type home door apparatus, a small-sized home door apparatus, etc.

  The configurations, shapes, sizes, and arrangement relationships described in the above embodiments are merely schematically shown to the extent that the present invention can be understood and implemented, and numerical values and the like are merely examples. Therefore, the present invention is not limited to the described embodiments, and can be variously modified without departing from the scope of the technical idea shown in the claims.

  The platform door device according to the present invention is preferably optimal for a platform door device having a door housing portion that accommodates two large-sized platform doors, realizes a stable opening / closing operation of the platform door, and is provided on the platform side. Therefore, it can be used to improve the line of sight and improve safety.

DESCRIPTION OF SYMBOLS 10 Home door apparatus 11 Station platform 12 Line side 13 Passage opening area | region 15,16 Home door 17,18 Window part 21 End wall part 22 Front side wall 23 Bottom part 24 Upper wall part 25 Support | pillar 26 Door opening part 27, 28 Rail 31, 33 Linear guide 32, 34 Door support frame 35, 36 Guide member 41, 51 Belt 42, 52 Support belt wheel 43, 53 Drive belt wheel 44, 54 Motor 45, 55 Connecting bracket

Claims (6)

Door casings installed along the track side edge of the station platform, and doors housed in a parallel state inside the door casing and each of the end walls at both ends of the door casing Two home doors that can be opened and closed through an opening through the opening, and two rails that guide the movement of each of the two home doors provided in the door casing and the movement Two sets of door drive devices that allow the two rails to be arranged in parallel to the bottom of the door casing, and the two home doors are directly above the two rails In the platform door device arranged in
One of the door driving device of the home door on the platform side and the door driving device of the platform door on the track side is disposed in the vicinity of the bottom of the door casing, and the other is the door casing. A platform door device characterized in that it is disposed near the upper wall portion and a see-through structure is provided in the middle portion.   2. The home door according to claim 1, wherein each of the two rails is provided with a slidable linear guide, and each of the two home doors is mounted on the corresponding linear guide. apparatus. Each of the two sets of the door driving devices includes a motor, a belt that is rotatably spanned in the length direction of the door casing and fixed to the corresponding home door, and a driving force of the motor. A power transmission means for converting into a rotational movement of the belt,
The motor of the door driving device arranged in the vicinity of the bottom portion and the motor of the door driving device arranged in the vicinity of the upper wall portion are close to either of the end wall portions at both ends. The platform door device according to claim 1, wherein the platform door device is installed.   4. The home door device according to claim 3, wherein an open space is formed in the door housing part, in which nothing is arranged in the intermediate part in the height direction. A window portion for line-of-sight is provided using the open space at the height position of the intermediate portion of each of the home side front side wall and the track side rear side wall of the door casing. Home door apparatus of 請 Motomeko 4, wherein that.   A window portion is provided at a central height position of each of the two home doors, and when the two home doors are accommodated in the door housing portion, the door housing portion and the two homes 6. The platform door device according to claim 5, wherein the positions of the window portions of the doors coincide with each other so that the track side can be seen from the platform side.

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