JP2013220792A - Platform door device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an opening formed in a floor surface of a platform from obstructing a pass of incoming and outgoing passengers.SOLUTION: A platform door device 10 includes: a door case body 11; a belt member 16 which closes an opening formed in a floor surface F so as to extend in the moving direction of a door body 13 and is laid on the floor surface F; traveling wheels 20a for movably supporting the door case body 11; a drive pulley 32 which receives a driving force from a motor 30 while the belt member 16 is wound therearound from above; and a pair of rollers 45, 45 which are disposed so as to come into contact with an upper surface of the belt member 16 on both sides of the drive pulley 32, guide to raise the belt member 16 which closes the opening, and also guide the belt member 16 in a state of being raised from the opening along the opening. A power supply cable withdrawn from an inside of the floor surface F through the opening is drawn into the door case body 11 through between the pair of rollers 45, 45.

Description

  The present invention relates to a platform door device.

  2. Description of the Related Art Conventionally, there is known a platform door device including a door bag body and a door body supported by the door bag body so as to be movable forward and backward. In this type of platform door device, as disclosed in Patent Document 1 below, the door bag body is configured to be movable so as to change the position of the entrance / exit according to the train formation entering the platform. Self-propelled platform door devices are known. Specifically, in the platform door device disclosed in Patent Document 1 below, as shown in FIG. 15, a motor 102 and a drive shaft 103 driven by the motor 102 are provided at a lower portion inside the door pocket body 101. A drive wheel 104 fixed to the drive shaft 103 is disposed, and the drive wheel 104 travels along a groove-like rail embedded in the floor F of the platform. Below the floor F of the platform, a trolley wire 105 for supplying electric power to the motor 102 is disposed.

  Further, a bracket 106 extending downward is disposed on the bottom plate of the door pocket body 101, and this bracket 106 enters the floor surface through an opening 107 formed in the floor surface F of the platform. Two openings 107 are formed in accordance with the bracket 106. At the lower end of the bracket 106, a cam follower 108 that rolls in contact with the rail that forms part of the floor F from below is provided.

JP 2006-8068 A

  In the platform door device disclosed in Patent Document 1, it is necessary to form an opening 107 through which the bracket 106 is inserted in the floor surface F, and the opening 107 extends along the track-side edge of the platform. Long shape. In the platform door device disclosed in Patent Document 1, a power supply trolley wire 105 is disposed below the floor F of the platform, and a motor 102 is disposed inside the door pocket body 101. Therefore, an opening for drawing the electric wire connected to the trolley wire 105 to the upper side of the platform floor surface is required on the floor F of the platform, and this opening has a long shape along the track side edge of the platform. I have to be. For this reason, both the opening 107 through which the bracket 106 is inserted and the opening through which the electric wire is drawn out are formed so as to cross the entrance / exit, which may hinder the passage of passengers.

  Therefore, the present invention has been made in view of the above-described prior art, and an object of the present invention is to provide a platform door device that prevents an opening formed on the floor surface of the platform from obstructing passage of passengers. It is to provide.

  In order to achieve the above object, the present invention provides a door bag body that is supported so that the door body can move forward and backward, and a shape that closes an opening formed in the floor surface so as to extend in the movement direction of the door body, and A belt member laid on the floor; a rolling element that movably supports the door pocket; a drive source that is disposed within the door pocket and generates a driving force for moving the door pocket; and the door pocket. A driving pulley that receives a driving force from the driving source in a state where the belt member is wound from above, and is arranged so as to come into contact with the upper surface of the belt member on both sides of the driving pulley. And a pair of rollers for guiding the belt member lifted from the opening along the opening while guiding the belt member to close the opening. It is A apparatus.

  In the present invention, since the belt member is disposed so as to close the opening formed in the floor surface so as to extend in the moving direction of the door body, the passenger is obstructed by traffic such as tripping by the opening. Can be prevented. In this platform door device, when the driving source generates driving force, the driving pulley around which the belt member laid on the floor is wound is driven, so that the door bag body can be moved. At this time, when the rolling element rolls, the door pocket moves. When the door bag body moves, one of the pair of rollers arranged to contact the upper surface of the belt member on both sides of the drive pulley guides the belt member closing the opening while the other The roller guides the belt member floating from the opening along the opening. Therefore, the function of the opening is secured by blocking the opening with the belt member so as not to obstruct the passage, but leaving the part where the opening is not obstructed at the lower side of the door bag body so as not to obstruct the passage of passengers. can do.

  Preferably, the platform door device includes a pressing device that biases the pair of rollers so that the belt member is pressed against the opening.

  In this aspect, since the pair of rollers is urged by the pressing device so that the belt member is pressed against the opening on the floor surface, the pair of rollers does not float due to the reaction force of the belt member when the door bag body moves. Can be. Therefore, it is possible to prevent the door bag body from becoming unstable when moving. Further, the belt member can be surely inserted into the opening of the floor surface.

  In the platform door device, a rail may be laid in a space provided on the lower side of the floor surface. In this case, the door pocket body has the opening through the opening between the pair of rollers. A cart extending into the space is provided, and the rolling element is preferably supported by the cart and configured as a guide wheel that rolls along the rail.

  In this aspect, since the rail is disposed in the space formed in the floor surface, it is possible to prevent the floor surface from being uneven by the rail. For this reason, the rail does not hinder passengers from passing through. In addition, since the carriage can enter the space between the pair of rollers through an opening that is not blocked by the belt member, the configuration in which the opening is blocked by the belt member at a place where passengers pass is inhibited. Nor. In addition, since the guide wheel supported by the carriage extending to the floor below through the opening is configured to roll along the rail disposed under the floor, the guide structure of the door pocket body can be simplified. In other words, since the center guide is used instead of the side guide, the number of guide rails and the number of rolling elements can be reduced, and the configuration can be simplified. Moreover, the width of the space formed under the floor (the width in the direction perpendicular to the direction in which the rail extends) can be shortened.

  In this aspect, the bogie may be supported by a lift prevention wheel that is disposed in the space and prevents the bogie from floating.

  In this aspect, since the carriage is prevented from being lifted by the anti-floating wheel, it is possible to prevent the door bag from being lifted when the door bag is moved. Further, even when the door bag is stationary, it is possible to prevent the door bag from tilting when a force is applied to the door bag from the side, such as a passenger getting on the door bag.

  In the above aspect, a second pulley on which the belt member is wound from above, a second pair of rollers disposed on both sides of the second pulley so as to contact the upper surface of the belt member, and the door bag body A second carriage provided between the second pair of rollers and extending into the space through the opening; and a second guide wheel supported by the second carriage and rolling along the rail. In this case, the second pair of rollers guides the belt member closing the opening to lift the belt member, while the belt member lifted from the opening moves the belt member. It is preferable to guide along the opening.

  In this aspect, when the door bag body is moved, the guide wheel supported by the carriage and the second guide wheel supported by the second carriage each roll along the rail. Therefore, even if a force for rotating the door bag body around the vertical axis is applied, the door bag body can be stably driven. In addition, since the second carriage can enter the space between the second pair of rollers through an opening that is not blocked by the belt member, the opening is blocked at a place where passengers pass by the belt member. It does not disturb the composition.

  In the platform door device, an auxiliary pulley may be provided between the drive pulley and the pair of rollers for increasing a range in which the belt member is wound around the drive pulley.

  In this aspect, since the range in which the belt member is wound around the drive pulley is increased by the auxiliary pulley, it is possible to prevent slippage between the drive pulley and the belt member.

  In the platform door device, the door body includes a door body driving source that generates a driving force for opening and closing the door body, a door body driving pulley that receives a driving force from the door body driving source, The belt member is arranged on both sides of the drive pulley so as to contact the upper surface of the belt member and guides the belt member covering the opening to be lifted, while the belt member lifted from the opening is guided to the opening. And a pair of door rollers for guiding the belt member so as to follow the belt member. In this case, it is preferable that the belt member is also wound around the door body driving pulley.

  In this aspect, since the belt member used for moving the door bag is also used for opening and closing the door, the number of parts can be reduced.

  The platform door device may include a second door bag body provided with a rolling element, a drive source, a drive pulley, and a pair of rollers, as in the case of the door bag body. In this case, the drive of the second door bag body may be provided. It is preferable that the belt member is also wound around the pulley.

  In this aspect, since the belt member used for moving the door bag is also used for moving the second door bag, the number of parts can be reduced.

  In the platform door device, a power supply line drawn from the lower side of the floor through the opening may be drawn into the door pocket through the pair of rollers.

  In this aspect, the power supply line drawn from the lower side of the floor surface can be drawn into the door pocket by utilizing the place where the opening is not blocked by the belt member between the pair of rollers. Therefore, the power supply line does not obstruct passenger traffic.

  As described above, according to the present invention, the opening formed in the floor surface of the platform can be prevented from obstructing the passage of passengers.

It is sectional drawing when the platform door apparatus which concerns on embodiment of this invention is seen in the direction along a track | orbit. It is a schematic sectional drawing in the II-II line of FIG. It is a perspective view which shows the principal part of the said platform door apparatus partially. (A) (b) It is a figure for demonstrating the structure of the belt member of the said platform door apparatus. It is a figure for demonstrating the structure of the belt member in the modification of the said embodiment. It is a figure for demonstrating the structure of the belt member in the modification of the said embodiment. It is a figure for demonstrating the structure of the pressing apparatus of the said platform door apparatus. It is a figure for demonstrating the structure of the pressing apparatus in the modification of the said embodiment. It is a figure for demonstrating the structure of the pressing apparatus in the modification of the said embodiment. (A) (b) It is a figure for demonstrating the structure of the electric power feeding part of the said platform door apparatus. It is a figure which shows schematically the structure of the platform door apparatus which concerns on other embodiment of this invention. It is a figure which shows schematically the structure of the platform door apparatus which concerns on other embodiment of this invention. (A) (b) It is a figure which shows schematically the structure of the platform door apparatus which concerns on other embodiment of this invention. It is a figure which shows schematically the structure of the platform door apparatus which concerns on other embodiment of this invention. It is a figure which shows the structure of the conventional platform door apparatus.

  Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings.

  As shown in FIGS. 1 and 2, a platform door device 10 according to the present embodiment includes a door bag body 11 that is movably disposed on the platform, and a door body 13 that is supported by the door bag body 11 so as to be movable forward and backward. 14. The door bag 11 is movable on the floor surface F of the platform, but a space S extending in the direction along the track is formed below the floor surface F (traveling path). When the door bag body 11 is moved, the door bag body 11 is guided by the rail 15 disposed in the space S. The space S communicates with the ground through an opening G formed in the floor surface F. The opening G also has a shape extending in a direction along the track, and the belt member 16 is laid in the opening G. Details of the configuration related to these will be described later.

  The door bodies 13 and 14 include a first door body 13 that advances from one end portion (one end portion in the direction along the track, the left end portion in FIG. 2) of the door bag body 11, and the other end portion ( 2nd door body 14 which advances from the right end part in FIG. 2 is included. The first door body 13 and the second door body 14 can be moved in a direction along the track by a drive mechanism (not shown), and are opened in the door bag body 11 to open the entrance and exit, and the door bag body 11. It moves linearly between the closed position where it advances outward and closes the entrance. As a drive mechanism of the door bodies 13 and 14, a belt drive system, a rack and pinion system, a ball screw system, or the like can be adopted.

  The first door body 13 and the second door body 14 are formed so as to overlap each other when the first door body 13 and the second door body 14 are accommodated in the door pocket body 11. That is, as shown in FIG. 1, which is a view seen along the track, both the first door body 13 and the second door body 14 are positioned on the inner side of the platform and extend vertically, and on the track side. And a home side wall that extends in an oblique direction and has an upper end connected to the upper end of the track side wall, and is formed in an arch shape. That is, both door bodies 13 and 14 are formed hollow. For example, the first door body 13 is formed slightly smaller than the second door body 14, and the first door body 13 enters the second door body 14. In addition, the structure of the 1st door body 13 and the 2nd door body 14 is not restricted to this, For example, while the 1st door body 13 and the 2nd door body 14 are all formed in flat form, it is orthogonal to a track | orbit. It is good also as a structure arrange | positioned by position shifting in the direction to do. Moreover, when the door bag body 11 has the length more than the length which put together both the door bodies 13 and 14, it is good also as a structure which the both door bodies 13 and 14 do not overlap.

  In the example shown in the figure, the door bodies 13 and 14 are advanced from both ends in the direction along the track, but the present invention is not limited to this. For example, one door body 13 is supported by the door bag body 11. The door body 13 may be advanced from one end of the door bag body 11. The door bag body 11 in this case has a configuration in which the other end is closed.

  The door pocket body 11 includes a bottom plate 17 and a door pocket portion 18 erected on the bottom plate 17 and is formed in a hollow shape. The door pocket portion 18 is formed in an arch shape having a shape slightly larger than the first door body 13 and the second door body 14 when viewed in the direction along the track, and when viewed in the direction orthogonal to the track. The shape is rectangular. In addition, the door pocket part 18 is good also as a structure by which the side wall by the side of a track | truck and the side wall inside a platform were each formed substantially perpendicular | vertical, and the top plate part which connects these side walls was provided.

  The bottom plate 17 has openings 17a and 17b. The openings 17a and 17b include a first opening 17a and a second opening 17b, and the first opening 17a and the second opening 17b are formed so as to be aligned in a direction along the track. Has been.

  A traveling wheel bracket 20, a first stand 22, a second stand 24, a first carriage 26 and a second carriage 28 are fixed to the bottom plate 17. Four traveling wheel brackets 20 are provided, and each traveling wheel bracket 20 is arranged at the four corners of the rectangular bottom plate 17 and fixed to the lower surface of the bottom plate 17. The traveling wheel bracket 20 rotatably supports a traveling wheel 20a that is an example of a rolling element. The traveling wheel 20a rolls on the floor surface F of the platform. That is, the traveling wheel 20a supports the door bag body 11 so as to be movable. The traveling wheels 20a are arranged at the four corners of the bottom plate 17, so that the door bag body 11 is not easily tilted even if it receives a lateral force.

  The first stand 22 and the second stand 24 have the same configuration, the first stand 22 is provided in accordance with the position of the first opening 17a of the bottom plate 17, and the second stand 24 is adjusted in accordance with the position of the second opening 17b. Is provided. The first stand 22 is fixed with a motor 30 as a driving source for generating a driving force for moving the door pocket body 11, and spans between the pair of leg members 22a and 22a and the both leg members 22a and 22a. And a erected member 22b. The erection member 22b extends further outward from the one leg member 22a, and the motor 30 is attached to the lower side of the extended portion.

  The drive shaft of the motor 30 passes through one leg member 22a and is rotatably supported by both leg members 22a and 22a. A drive pulley (first pulley) 32 is fixed to the drive shaft between the leg members 22a and 22a. A belt member 16 is wound around the drive pulley 32 from above. The belt member 16 is a toothed belt having teeth 16 a (see FIG. 3) provided on the back surface (lower surface), and the driving pulley 32 is also provided with teeth that mesh with the teeth of the belt member 16.

  A pair of auxiliary pulleys 33, 33 are supported on the first stand 22. Each of the pair of auxiliary pulleys 33, 33 is arranged separately on both sides with respect to a vertical plane passing through the axis of the drive pulley 32. Each auxiliary pulley 33 is disposed below the axis of the drive pulley 32 and within the outer shape of the drive pulley 32, and contacts the surface of the belt member 16 on both sides of the drive pulley 32. Thus, the range in which the belt member 16 is wound around the drive pulley 32 is increased. The auxiliary pulley 33 may be rotatably provided or may be fixed so as not to rotate. The auxiliary pulley 33 may be omitted, and when the auxiliary pulley 33 is provided, it is sufficient that at least one auxiliary pulley 33 is provided.

  The second stand 24 also includes a pair of leg members 24a, 24a and a construction member 24b. In the present embodiment, a motor (not shown) is also fixed to the second stand 24, and a second pulley 35 is fixed to the drive shaft of the motor. That is, the second pulley 35 is configured as a driving pulley that receives a driving force from the motor. The second pulley 35 is provided with teeth that mesh with the teeth 16a of the belt member 16, and the belt member 16 is wound around from above. The second stand 24 may not be provided with a motor. In this case, the second pulley 35 may be rotatably provided between the pair of leg members 24a and 24a. That is, the second pulley 35 may be configured as an idler pulley.

  Similarly to the first stand 22, a pair of auxiliary pulleys 36 and 36 are supported on the second stand 24. Each of the pair of auxiliary pulleys 36 is arranged separately on both sides with respect to a vertical plane passing through the axis of the second pulley 35. The pair of auxiliary pulleys 36, 36 are disposed so as to be positioned below the axis of the second pulley 35 and within the outer shape of the second pulley 35, and on both sides of the second pulley 35, the belt member 16. The range in which the belt member 16 is wound around the second pulley 35 is increased. The auxiliary pulley 36 may be rotatably provided or may be fixed so as not to rotate. The auxiliary pulley 36 may be omitted, and when the auxiliary pulley 36 is provided, at least one auxiliary pulley 36 may be provided.

  The first carriage 26 and the second carriage 28 have the same configuration, the first carriage 26 is provided in accordance with the position of the first opening 17 a of the bottom plate 17, and the second carriage 28 is the second opening 17 b of the bottom plate 17. It is provided according to the position. The first carriage 26 is bifurcated so as to branch from a horizontal plate-like base portion 26a fixed to the lower surface of the bottom plate 17, a hanging portion 26b extending downward from the center position of the base portion 26a, and a lower end portion of the hanging portion 26b. And a pair of support portions 26c, 26c that extend further downward. The base 26a has a shape that is long in a direction perpendicular to the track, and the first opening 17a of the bottom plate 17 has a first opening so that a gap remains on both sides of the base 26a (both sides in the direction along the track). It spans between the peripheral parts of the part 17a. By forming this gap, the belt member 16 and the like can be passed as will be described later.

  The hanging part 26b is inserted through an opening G formed in the floor surface F of the platform and enters the space S under the floor.

  A first guide wheel 38, which is an example of a rolling element, is rotatably supported by the pair of support portions 26c and 26c. The first guide wheels 38 roll along the rails 15 laid on the bottom surface in the space S. A pair of support portions 26c, 26c support a first float prevention wheel 39 that prevents the first carriage 26 from floating. The first float prevention wheel 39 prevents the first carriage 26 from floating by coming into contact with the panel P constituting the floor surface F in the space S from below. Thereby, it is prevented that the door pocket body 11 floats.

  Similarly to the first carriage 26, the second carriage 28 integrally includes a base portion 28a, a hanging portion 28b, and a pair of support portions 28c, 28c. The second guide wheel 41 and the second anti-floating wheel 42 are rotatably supported by the pair of support portions 28c and 28c. The second guide wheel 41 also rolls along the rail 15 like the first guide wheel 38. The second anti-floating wheel 42 prevents the second carriage 28 from floating by coming into contact with the panel P constituting the floor surface F in the space S from below.

  The bottom plate 17 of the door bag body 11 supports a first pair of rollers 45 and 45 and a second pair of rollers 46 and 46. The first pair of rollers 45, 45 and the second pair of rollers 46, 46 have the same configuration, and the first pair of rollers 45, 45 are aligned with the position of the first opening 17 a of the bottom plate 17. The second pair of rollers 46, 46 are arranged in accordance with the position of the second opening 17 b of the bottom plate 17.

  The first pair of rollers 45, 45 are arranged separately on both sides in the extending direction of the belt member 16 (moving direction of the door bag body 11) with respect to the first opening 17 a, The roller bracket 47 that extends downward is rotatably supported at the lower end. That is, the first pair of rollers 45, 45 is disposed below the door pocket body 11. In other words, the first pair of rollers 45, 45 are arranged at positions that fit within the range of the door pocket body 11 when viewed from above. The same applies to the second pair of rollers 46 and 46.

  The first pair of rollers 45, 45 is disposed at a position where each roller 45 is divided on both sides of the drive pulley 32 (and a pair of auxiliary rollers) and contacts the floor F of the platform from above. In contact with the upper surface of the belt member 16 laid on the floor surface F. One of the first pair of rollers 45, 45 guides the belt member 16 closing the opening G to be lifted, and the other is a belt member that is lifted from the opening G by being hung on the drive pulley 32. 16 is guided along the opening G. For example, in FIG. 2, when the door bag body 11 moves to the left, the left roller 45 guides the belt member 16 to lift, while the right roller 45 is lifted from the floor surface F. The belt member 16 is guided along the opening G.

  The second pair of rollers 46, 46 are arranged separately on both sides in the extending direction of the belt member 16 (moving direction of the door pocket body 11) with respect to the second opening 17 b and extend downward from the bottom plate 17. The lower end of 47 is rotatably supported. The second pair of rollers 46, 46 is disposed at a position where each roller 46 is divided on both sides of the second pulley 35 (and a pair of auxiliary rollers) and contacts the floor F of the platform from above. It contacts the upper surface of the belt member 16 laid on the floor surface F along G.

  As shown in FIGS. 3 and 4A and 4B, the panel P constituting the floor surface F has an engaging portion P1 with which the belt member 16 engages at the edges on both sides in the width direction of the opening G. Are formed respectively. The engaging portion P1 has an upper surface that is thinner than the main body portion of the panel P and is one step lower than the upper surface (floor surface F) of the main body portion. Teeth P2 that mesh with the teeth 16a formed on the back surface of the belt member 16 are formed on the upper surface of the engaging portion P1. Then, the opening G is closed by placing the belt member 16 so as to straddle both the engaging portions P1. In this state, the upper surface of the belt member 16 substantially matches the upper surface of the main body of the panel P. The belt member 16 is fixed to the floor F of the platform, for example, at both ends so as not to be displaced. The belt member 16 is not limited to a toothed belt, and may have a flat back surface.

  In the present embodiment, an example in which the belt member 16 is formed in a rectangular cross section is shown, but the present invention is not limited to this. For example, as shown in FIGS. 5 and 6, the belt member 16 may be formed in a trapezoidal cross section. In the example shown in FIG. 5, the thickness of the belt member 16 is substantially the same as that of the panel P constituting the floor surface F, and the inclined side surface of the belt member 16 is the inclined side surface of the opening G. It is the structure which engages. Teeth may be formed on this side surface, and teeth may not be formed. On the other hand, the example shown in FIG. 6 is the same as the example shown in FIG. 5 in that the cross section of the belt member 16 is trapezoidal. ing. And it becomes the structure mounted in the engaging part P1 which protrudes from the main-body part of the panel P. As shown in FIG. Teeth P2 that mesh with teeth 16a provided on the back surface of the belt member 16 are provided on the upper surface of the engaging portion P1. Even the thing of this example can also be set as the structure by which the tooth | gear is not provided.

  The roller bracket 47 supports the roller 45 (46) in a state where the roller 45 (46) can be displaced with respect to the bottom plate 17. For example, as shown in FIG. 7, the roller bracket 47 has bracket members disposed on both sides of the roller 45 (46), and each bracket member is fixed to the bottom plate 17 and a fixing portion 47a. And a movable portion 47b that is swingable by being pin-coupled to the portion 47a. And the roller 45 (46) is rotatably supported by the lower end part of this movable part 47b by the axis | shaft of the roller 45 (46) being penetrated by the lower end part of both the movable parts 47b.

  The roller bracket 47 has a pressing device 49 that biases the roller 45 (46) so that the belt member 16 is pressed against the opening G. The pressing device 49 is constituted by a torsion spring disposed so as to accommodate a pin. One end of the torsion spring is locked to a fixing portion 47a of one bracket member, and the other end is the other bracket member. It is locked to the upper end of the movable part 47b. Thereby, the lower end part of the movable part 47b is urged | biased toward the floor surface F, and the roller 45 (46) is pressed on the opening G (floor surface F).

  The pressing device 49 is not limited to the above configuration. For example, as shown in FIG. 8, the pressing device 49 is configured by a coil spring compressed in the vertical direction, and the movable portion 47b of the bracket member is urged downward by the lower end portion of the coil spring. The lower end of the movable portion 47b presses the shaft of the roller 45 (46) downward. Both end portions of the shaft of the roller 45 (46) are inserted into holding holes 47c formed in the lower end portion of the fixing portion 47a. Since the holding hole 47c has a sufficiently large size as compared with the shaft of the roller 45 (46), it does not hinder the movable portion 47b from being displaced in the vertical direction. The pressing device 49 is provided with an adjusting member 49a that adjusts the pressing force by adjusting the compression amount of the coil spring.

  Moreover, in the example shown in FIG. 9, the pressing device 49 is comprised with the leaf | plate spring. One end of the leaf spring is fixed to a fixed portion 47a fixed to the bottom plate 17, and the other end is fixed to a movable portion 47b that can be displaced in the vertical direction. Thereby, the roller 45 (46) is pressed against the floor surface F.

  As shown in FIG. 1, in a space S formed below the floor surface F, a power feeding unit 51 for feeding power to a motor 30 and a control device (not shown) provided in the door pocket body 11. It is arranged. The power feeding unit 51 is configured by, for example, a trolley wire, and the trolley wire is disposed along the direction in which the space S extends (the direction along the trajectory). A current collector 52 fixed to the first carriage 26 is in sliding contact with the trolley wire. A power supply line (not shown) connected to the current collector 52 is drawn through the opening G, and the first opening 17a of the bottom plate 17 is drawn. It is drawn into the door bag body 11 through. The power supply line is drawn into the door bag body 11 through the gap between the pair of rollers 45 in the opening G. Therefore, while the opening G is closed by the belt member 16, the power supply line is drawn into the door bag body 11 by using the clearance of the raised portion to drive the door bag body 11. Further, the signal line as well as the power supply line may be drawn into the door bag body 11 through the opening G.

  The second carriage 28 may also be provided with a current collector (not shown) that is in sliding contact with the trolley wire. The power supply line connected to the current collector is drawn into the door bag body 11 through the gap between the pair of rollers 46 and 46.

  Further, as shown in FIGS. 10A and 10B, the power feeding unit 51 may be configured to be able to follow the movement of the carriages 26 and 28. The power supply unit 51 is configured such that the holding body 51a of the power supply line 51b can be easily deformed like a chain and follows the movement of the carriages 26 and 28. It is the structure which follows.

  As described above, in the present embodiment, the belt member 16 is disposed so as to close the opening G formed in the floor surface F so as to extend in the moving direction of the door bodies 13, 14. It is possible to prevent an obstacle in traffic such as tripping at the opening G. In this platform door device 10, when the motor 30 generates a driving force, the driving pulley 32 around which the belt member 16 laid on the floor surface F is wound is driven, so that the door bag body 11 can be moved. At this time, when the traveling wheel 20a and the guide wheels 38 and 41 roll, the door bag body 11 moves. When the door bag 11 moves, one of the first pair of rollers 45, 45 disposed so as to contact the upper surface of the belt member 16 on both sides of the drive pulley 32 closes the opening G. The other roller 45 guides the belt member 16 positioned above the opening G so as to follow the opening G. For this reason, there exists a place where the opening G is not blocked by the belt member 16 between the first pair of rollers 45 and 45. The power supply line drawn out from the floor surface F is drawn into the door pocket body 11 using the unblocked portion. Similarly, one of the second pair of rollers 46, 46 lifts the belt member 16, while the other roller 46 brings the belt member 16 along the opening G. Accordingly, the opening G is blocked by the belt member 16 so as not to obstruct the passage, and the opening G is left by leaving a portion where the opening G is not obstructed at the lower side of the door bag body 11 so as not to obstruct the passage of passengers. The function of G can be secured.

  In the present embodiment, the pressing device 49 that biases the roller 45 (46) is provided so that the belt member 16 is pressed against the opening G. Therefore, when the door bag body 11 moves, the roller 45 (46). Can be prevented from rising due to the reaction force of the belt member 16. Therefore, it is possible to prevent the door bag body 11 from becoming unstable when moving. Further, the belt member 16 can surely enter the opening G of the floor surface F.

  Moreover, in this embodiment, since the rail 15 is arrange | positioned in the space S formed in the lower side of the floor surface F, it can prevent that the floor 15 F makes an unevenness | corrugation by the rail 15. FIG. For this reason, the rail 15 does not obstruct the passage of passengers. Moreover, since the carriage 26 (28) can enter the space S through the opening G that is not blocked by the belt member 16 between the pair of rollers 45 and 45 (46, 46), the belt member 16 can get on and off. The configuration of closing the opening G at the place where the customer passes is not hindered. Further, the guide wheel 38 supported by the carriage 26 (28) extending to the under floor through the opening G is configured to roll along the rail 15 disposed under the floor, and has a central guide structure. The guide structure of the door pocket body 11 can be simplified. That is, since the center guide is used instead of the side guide, the number of guide rails and the number of rolling elements such as the guide wheels 38 can be reduced, and the configuration can be simplified. Further, the width of the space S formed under the floor (the width in the direction orthogonal to the direction in which the rail 15 extends) can be shortened.

  Moreover, in this embodiment, since the carts 26 and 28 are prevented from being lifted by the lift prevention wheels 39 and 42, the door bag 11 can be prevented from being lifted when the door bag 11 is moved. Further, even when the door bag body 11 is stationary, it is possible to prevent the door bag body 11 from leaning when a force is applied to the door bag body 11 from the side, such as a passenger getting on the door bag body 11. Can do.

  In the present embodiment, since the second pulley 35, the second pair of rollers 46, 46, the second carriage 28, and the second guide wheel 41 are provided, the first carriage is moved when the door bag body 11 is moved. The first guide wheel 38 supported by the second guide wheel 38 and the second guide wheel 41 supported by the second carriage 28 roll along the rail 15, respectively. Therefore, even if the force which rotates the door bag body 11 around a vertical axis acts, the door bag body 11 can be driven stably. Further, since the second carriage 28 can enter the space S through the opening G that is not blocked by the belt member 16 between the second pair of rollers 46, 46, passengers pass by the belt member 16. Therefore, the configuration of closing the opening G at the place to be performed is not hindered.

  In the present embodiment, since auxiliary pulleys 33 and 33 are provided for increasing the range in which the belt member 16 is wound around the drive pulley 32, slippage occurs between the drive pulley 32 and the belt member 16. Can be prevented.

  Further, in the present embodiment, between the pair of rollers 45, 45, the power supply line 51 b drawn from the lower side of the floor surface F is connected to the inside of the door bag body 11 by utilizing the place where the opening G is not blocked by the belt member 16. Can be drawn into. Therefore, the power supply line 51b does not obstruct the passage of passengers.

  Note that the present invention is not limited to the above-described embodiment, and various modifications and improvements can be made without departing from the spirit of the present invention. For example, in the embodiment, the two openings 17a and 17b are formed in the bottom plate 17 of the door pocket body 11, and the second stand 24, the second carriage 28, the second pulley 35, the second pair of rollers 46, However, the present invention is not limited to this. The second stand 24, the second carriage 28, the second pulley 35, and the second pair of rollers 46, 46 may be omitted.

  In the above embodiment, the auxiliary pulleys 33 and 33 are provided on both sides of the drive pulley 32. However, the present invention is not limited to this, and the auxiliary pulleys 33 and 33 may be omitted. The same applies to the second auxiliary pulley 36. In this case, as shown in FIG. 11, the idler pulley 55 may be in contact with the belt member 16 in addition to the drive pulley 32 between the first pair of rollers 45, 45. In this case, the idler pulley 55 is preferably disposed, for example, on the side of the drive pulley 32 so as to mesh with the back surface of the belt member 16. Further, if the distance between the drive pulley 32 and the idler pulley 55 is longer than the distance between the rollers, the range of the belt member 16 that meshes with the drive pulley 32 is increased, which is preferable.

  In the above-described embodiment, one rail 15 is disposed in the space S below the floor surface F, and the first guide wheel 38 and the second guide wheel 41 are provided one by one. Is not something For example, as shown in FIG. 12, two rails 15 and 15 are arranged in parallel in the space S, and the first carriage 26 rolls on the rails 15 and 15 in the first carriage 26. Are provided as a pair, and the second carriage 28 is provided with a pair of second guide wheels 41 that roll on the rails 15 and 15. Specifically, the first carriage 26 has a base portion 26a and a hanging portion 26b depending from the base portion 26a, and the first guide wheel 38 is supported by the hanging portion 26b. The same applies to the second carriage 28. In this case, since the pair of first guide wheels 38 and 38 and the pair of second guide wheels 41 and 41 also have a function of preventing the door body 11 from tilting, the traveling wheel 20a and the float prevention wheels 39 and 42 are provided. Can be omitted. In addition, the structure provided with the driving | running | working wheel 20a and the float prevention wheels 39 and 42 may be sufficient.

  In the embodiment, the door bodies 13 and 14 are configured to be driven by the drive mechanism of the door bodies 13 and 14 provided separately from the belt member 16. For example, the drive mechanisms of the door bodies 13 and 14 are provided on a door motor 57 as a door body drive source provided on the door bag body 11 and a drive shaft of the door motor 57 as shown in FIG. It is good also as a structure provided with the ball screw 58 meshed | engaged with the drive gear formed. Both ends of the ball screw 58 are fixed to the door bodies 13 and 14 while being held by guides 59 provided on the door pocket body 11. However, the platform door device 10 shown in FIG. 13A shows a configuration in which an idler pulley 55 is disposed on the side of the drive pulley 32 as in the configuration shown in FIG.

  The present invention is not limited to this configuration, and the belt member 16 may be used for driving the door bodies 13 and 14. For example, as shown in FIG. 13 (b), a door motor (not shown) as a door drive source and a door drive pulley 60 provided on the drive shaft of the door motor are provided on the door bodies 13 and 14. And a pair of door rollers 61 and 61 arranged so as to be in contact with the upper surface of the belt member 16 on both sides of the door drive pulley 60 may be provided. The pair of door rollers 61, 61 have the same configuration as the pair of rollers 45, 45 provided in the door pocket body 11. When the door motor is driven, the door body driving pulley 60 engaged with the belt member 16 is driven, whereby the door bodies 13 and 14 are driven to open and close. In the illustrated example, the pair of auxiliary rollers 62 and 62 are provided. However, the auxiliary rollers 62 and 62 may be omitted.

  In the embodiment, the belt member 16 may be used to drive one door pocket body 11 or may be used to drive a plurality of door pocket bodies 11. In the case of a configuration in which the plurality of door pocket bodies 11, 71 are driven, for example, as shown in FIG. 14, the drive pulley 32 provided in each of the plurality of door pocket bodies 11, 71 is engaged with one belt member 16. Thus, the plurality of door pocket bodies 11 can be driven. That is, the platform door device 10 includes the second door pocket body 71, and the belt member 16 is wound around the driving pulley 32 provided on the second door pocket body 71. The 2nd door bag body 71 is the same structure as the door bag body 11 shown in FIG.

  In the said embodiment, although it was set as the structure supplied with electric power to the motor 30 and a control apparatus from the electric power feeding part 51 arrange | positioned under the floor surface F, it is not restricted to this. For example, a battery (not shown) may be provided in the door pocket body 11 and power may be supplied from the battery to the motor 30 and the control device.

DESCRIPTION OF SYMBOLS 10 Platform door apparatus 11 Door bag body 13 1st door body 14 2nd door body 15 Rail 16 Belt member 16a Teeth 17 Bottom plate 17a 1st opening part 17b 2nd opening part 20a Traveling wheel (rolling element)
26 First Car 28 Second Car 30 Motor (Drive Source)
32 Drive pulley 33 Auxiliary pulley 35 Second pulley 36 Auxiliary pulley 38 First guide wheel (rolling element)
39 First float prevention wheel 41 Second guide wheel (rolling element)
42 Second Prevention Wheel 45 First Pair of Rollers 46 Second Pair of Rollers 49 Pressing Device 51 Power Supply Unit 55 Idler Pulley 57 Door Motor 60 Door Body Drive Pulley 61 Pair of Rollers for Door 62 Auxiliary Roller 71 Second Door Bag body

Claims (9)

A door bag body that is supported so that the door body can move forward and backward, and
A belt member configured to close an opening formed in the floor surface so as to extend in the moving direction of the door body, and laid on the floor surface;
A rolling element that movably supports the door pocket,
A driving source that is disposed within the door pocket and generates a driving force for moving the door pocket;
A driving pulley disposed in the door pocket and receiving a driving force from the driving source in a state where the belt member is wound from above;
The belt is disposed on both sides of the drive pulley so as to be in contact with the upper surface of the belt member and guides the belt member covering the opening to be lifted, while the belt member lifted from the opening is guided to the belt member. A platform door device comprising a pair of rollers for guiding along an opening, and a pair of rollers.   The platform door device according to claim 1, further comprising a pressing device that biases the pair of rollers so that the belt member is pressed against the opening. In the space provided on the lower side of the floor surface, rails are laid,
The door bag body is provided with a carriage extending into the space through the opening between the pair of rollers,
The platform door device according to claim 1 or 2, wherein the rolling element is configured as a guide wheel that is supported by the carriage and rolls along the rail.   The platform door device according to claim 3, wherein a lift prevention wheel disposed in the space and preventing the carriage from floating is supported on the carriage. A second pulley on which the belt member is wound from above;
A second pair of rollers disposed on both sides of the second pulley so as to contact the upper surface of the belt member;
A second carriage provided in the door pocket and extending into the space through the opening between the second pair of rollers;
A second guide wheel supported by the second carriage and rolling along the rail;
The second pair of rollers guides the belt member that closes the opening to be lifted, and guides the belt member lifted from the opening along the opening. The platform door device according to 3 or 4.   The auxiliary pulley for increasing the range in which the belt member is wound around the drive pulley is provided between the drive pulley and the pair of rollers. Platform door equipment.   The door body includes a door body driving source that generates a driving force for opening and closing the door body, a door body driving pulley that receives a driving force from the door body driving source, and both sides of the driving pulley. Guided to lift the belt member disposed so as to contact the upper surface of the belt member and closing the opening while guiding the belt member lifted from the opening along the opening. A platform door device according to any one of claims 1 to 6, wherein a pair of door rollers are provided, and the belt member is also wound around the door drive pulley.   As in the case of the door bag body, a rolling element, a driving source, a driving pulley, and a second door bag body provided with a pair of rollers are provided, and the belt member is wound around the driving pulley of the second door bag body. Item 8. The platform door device according to any one of Items 1 to 7.   The platform door device according to any one of claims 1 to 8, wherein a power supply line drawn from the lower side of the floor through the opening is drawn into the door pocket through the pair of rollers.

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