Platform doors

Abstract

To provide a method by which a load applied to a door supporting part is suppressed in the door closed state.SOLUTION: In this embodiment of a platform door, the door opens or closes a get-on passage by moving the door in a slide-type fashion using a guide support part interposed between a door pocket and the door. The door pocket comprises a body part and a door end storage part which is installed in a part corresponding to a position where the guide support part is installed, in upper and lower parts of an end in a door closing direction side of the body part, and which protrudes from the end in the door closing direction. The guide support part is installed in either the door pocket or door and has a guide part extending along a door opening or closing direction, and a support part which is installed in the other of the door pocket or the door, guided to a guide body and supports a load weight of the door. When the door is in an open state, an open clearance is formed between a door end member and an end part in the door closing direction side of the body part of the door pocket. When the door is in a closed state, the support part is included in the door end storage part of the door pocket.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present disclosure relates to platform doors installed on platforms. [Background technology]

[0002] To prevent passengers from falling off station platforms, multiple platform doors are installed along the edges of the platforms. Platform doors include door pockets fixed to the platform and doors stored in the door pockets. The doors slide open and close through openings in the door pockets, opening and closing the boarding and alighting passageways between adjacent door pockets. One known example of such doors is a frame structure in which multiple horizontal members extending in the door opening and closing direction are spaced apart vertically, and the ends of the horizontal members are connected by door edge members extending vertically.

[0003] In platform doors with this configuration, to prevent hands or luggage from getting caught between the door edge member and the door pocket when the door is stored in the door pocket, the door edge protrudes from the door pocket even when the door is open, creating a gap between the door edge member and the door pocket. As a result, the width of the boarding and alighting passage is narrower than the distance between adjacent door pockets by the length by which the door edge protrudes from the door pocket.

[0004] In response to this, Patent Document 1 discloses platform doors in which notches are provided on the platform-side and track-side surfaces of the door pocket that extend from the opening of the door pocket in the direction in which the door opens, the vertical size of the door is set smaller than the vertical size of the notch, and the door slides to a position corresponding to the notch. With this configuration, when the door is open, a gap can be secured between the door edge member of the door and the bottom of the notch without the door edge protruding from the door pocket, preventing the width of the boarding and alighting passage from becoming narrower. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 3306055 Summary of the Invention [Problem to be solved by the invention]

[0006] However, when a load is applied to the door, for example, when a passenger leans against the door, the platform door in Patent Document 1 supports the load at a position closer to the door opening direction than the position corresponding to the bottom of the notch. With such platform doors, the distance from the door edge to the part supporting the load is longer than when the door pocket does not have a notch, and the load on the door increases. This requires the door pocket to be longer and heavier, which places design constraints on the door.

[0007] The present disclosure has been made to solve the above-mentioned problems, and aims to prevent the width of the boarding and alighting passage from narrowing when the door is open in a platform door equipped with a door of a frame structure, and to form a gap between the door edge member of the door and the door pocket to prevent hands, luggage, etc. from being pinched, and to suppress the load on the part supporting the door when the door is closed. [Means for solving the problem]

[0008] The platform door according to the present disclosure is a platform door comprising a plurality of door pockets provided at predetermined intervals on a platform, and doors that are housed in the door pockets and move in a sliding manner to open and close boarding and alighting passageways, the door pockets having a first door pocket and a second door pocket provided adjacent to the first door pocket, the doors having a first door housed in the first door pocket and a second door housed in the second door pocket, the door edges of the first door and the second door being covered by elastic members, the first elastic member covering the door edge of the first door having a semicircular shape when viewed from above, and the second elastic member covering the door edge of the second door having a rectangular shape or a rectangular shape with rounded corners when viewed from above, the first door pocket and the second door pocket being provided such that the respective tips of the first elastic member and the second elastic member face each other when the first door and the second door are closed. The first door is positioned closer to the track or platform than the second door. [Effects of the Invention]

[0009] According to the present disclosure, in a platform door equipped with a frame-structured door, when the door is open, it is possible to prevent the width of the boarding and alighting passage from narrowing, and to form a gap between the door edge member of the door and the door pocket to prevent hands, luggage, etc. from being pinched, and to suppress the load on the part supporting the door when the door is closed. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a diagram showing the configuration of platform doors according to the first embodiment. [Figure 2] FIG. 1 is a diagram showing the configuration of platform doors according to the first embodiment. [Figure 3] FIG. 2 is a diagram showing the internal configuration of a platform door according to the first embodiment. [Figure 4] FIG. 10 is a diagram showing a modified example of the configuration of platform doors according to the first embodiment. [Figure 5] FIG. 1 is a diagram showing the configuration of platform doors according to the first embodiment. [Figure 6] FIG. 10 is a diagram showing a modified example of the configuration of platform doors according to the first embodiment. [Figure 7] FIG. 10 is a diagram showing a modified example of the configuration of platform doors according to the first embodiment. [Figure 8] FIG. 10 is a diagram showing a modified example of the configuration of platform doors according to the first embodiment. [Figure 9] FIG. 10 is a diagram showing a modified example of the configuration of platform doors according to the first embodiment. [Figure 10] FIG. 10 is a diagram showing the configuration of platform doors according to the second embodiment. [Figure 11] FIG. 10 is a diagram showing a modified example of the configuration of platform doors according to the second embodiment. [Figure 12] FIG. 10 is a diagram showing the configuration of platform doors relating to embodiment 3. [Figure 13] FIG. 10 is a diagram showing the configuration of platform doors relating to embodiment 3. [Figure 14] An explanatory diagram showing the state in which the door tip of the platform door is misaligned. [Figure 15] FIG. 10 is a diagram showing the configuration of platform doors relating to embodiment 4. [Figure 16] This is a diagram showing the configuration of a platform door that does not have a restricting unit. [Figure 17] FIG. 10 is an explanatory diagram showing the operation of platform doors in accordance with embodiment 4. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, with reference to the drawings, a platform door according to an embodiment of the present disclosure will be described. In the drawings, the same or corresponding parts are given the same reference numerals, and their description may be omitted. Note that hereinafter, the opening and closing direction of the platform door when viewed from the platform side will be described as the left-right direction.

[0012] <First Embodiment> The platform door according to the first embodiment is a platform door in which the main body of the door pocket is formed by a plate-shaped panel member. First, the configuration of the platform door 100 according to the present embodiment will be described with reference to the drawings.

[0013] 1 and 2 are diagrams showing an example of the configuration of a platform door 100 according to this embodiment. FIG. 1(a) is a front view of the platform door 100 as seen from the platform side, FIG. 1(b) is a cross-sectional view taken along the AA cross-sectional line shown in FIG. 1(a), FIG. 1(c) is an enlarged view of the portion indicated by the dotted circle S1 in FIG. 1(a), and FIG. 1(d) is an enlarged view of the portion indicated by the dotted circle S2 in FIG. 1(a). Note that FIG. 1(a) shows a state in which doors 2R and 2L of the platform door 100 have advanced from the door pocket 1 to close the boarding and alighting passageway. In addition, in FIG. 1(b), the left side of the platform door 100 is the platform side P, and the right side is the track side T. FIG. 2 shows a state in which doors 2R and 2L of the platform door 100 have retracted into the door pocket 1 to open the boarding and alighting passageway.

[0014] Figure 3 is a diagram showing the internal configuration of the platform door 100 according to this embodiment. Figure 3(a) shows a state in which doors 2R and 2L of the platform door 100 have advanced from the door pocket 1 to close the boarding and alighting passage. Figure 3(b) shows a state in which doors 2R and 2L of the platform door 100 have retracted into the door pocket 1 to open the boarding and alighting passage. 4(a) and 4(b) are diagrams showing modified examples of the configuration of platform doors according to this embodiment.

[0015] As shown in FIG. 1, the platform door 100 comprises a door pocket 1 installed on a railway platform 3, and a pair of doors 2R, 2L housed in the door pocket 1 and slidably supported by the door pocket 1. A plurality of platform doors 100 are arranged at predetermined intervals along the edge of the platform 3 to correspond to the spacing between the doors of the stopping trains. Passenger boarding and alighting passages for passengers to board and alight from the train are formed between adjacent platform doors 100, and are opened and closed by the advancement and retreat of the doors 2R, 2L. Note that although the doors 2R, 2L are arranged in different positions, they have the same configuration, and therefore in the following explanation, when there is no need to distinguish between the doors 2R and 2L, they will simply be referred to as door 2, with the "R" and "L" omitted.

[0016] Next, the configuration of the door pocket 1 will be described with reference to FIG. As shown in Figure 1(a), the door pocket 1 comprises a main body 10, an upper door tip storage section 11, a lower door tip storage section 12, a cover 13, and legs 14. When there is no need to distinguish between the upper door tip storage section 11 and the lower door tip storage section 12, they are collectively referred to simply as the door tip storage sections.

[0017] The main body 10 has a monocoque structure formed into a box shape by joining plate-like panel members. The configuration of the main body 10 of the door pocket 1 is not limited to this, and may be a frame structure in which a framework is formed by multiple pillars fixed to the platform 3 and cross beams connecting the multiple pillars, and plate-like panel members are attached to the framework.

[0018] As shown in FIG. 1(b), openings 15 through which the door 2 passes are provided at both left and right end portions 10a of the main body 10. An opening 15 is provided at the right end portion 10a of the main body 10 at a position through which the door 2R passes when passing in and out. Although not shown, an opening 15 is also provided at the left end portion 10a of the main body 10 at a position through which the door 2L passes when passing in and out. A drive mechanism for moving the door 2 back and forth, a control device for controlling the drive mechanism, and a guide support unit are housed inside the main body 10. The drive mechanism, control device, and guide support unit will be described later.

[0019] As shown in FIG. 1( a), the upper door edge storage section 11 is provided above both left and right end portions 10a of the main body 10 of the door pocket 1, i.e., on the upper side in the vertical direction. When viewed from the platform side, the upper door edge storage section 11 protrudes from the upper portions of both left and right end portions 10a of the main body 10 toward the closing direction in the opening and closing direction of the door 2. When viewed from the platform side, the upper door edge storage section 11 is provided at a position overlapping at least a portion of the upper part of the door 2 supported by the door pocket 1, and has a shape that is open on the bottom and both left and right sides 11b. With this configuration, the upper part of the door 2 is stored inside the upper door edge storage section 11. Note that the shape that the bottom and both left and right sides of the upper door edge storage section 11 are open may mean that, as shown in FIG. 1( b), at least the portions of the bottom surface and side surfaces of the upper door edge storage section 11 that correspond to the position where the door 2 passes through are open.

[0020] As shown in FIG. 1( a), the lower door edge storage section 12 is provided below the left and right end portions 10a of the main body 10 of the door pocket 1, i.e., on the lower side in the vertical direction. When viewed from the platform side, the lower door edge storage section 12 protrudes from the lower portions of the left and right end portions 10a of the main body 10 toward the closing direction in the opening and closing direction of the door 2. When viewed from the platform side, the lower door edge storage section 12 is provided at a position overlapping at least a portion of the lower part of the door 2 supported by the door pocket 1, and has a shape with an open top and both left and right side portions 12b. With this configuration, the lower end of the door 2 is stored inside the lower door edge storage section 12. Note that the shape with the open top and both left and right side portions of the lower door edge storage section 12 means that, as shown in FIG. 1( b), at least the portions of the top surface and side surfaces of the lower door edge storage section 12 that correspond to the position where the door 2 passes through are open.

[0021] The cover 13 is provided on the main body 10 of the door pocket 1 and on the upper door tip storage section 11, and is configured to be openable and closable. In other words, the openable cover 13 is configured on the top of the door pocket 1. A control device, which will be described later, may be stored inside the cover. In addition, as shown in FIG. 1(b), the top surface of the cover 13 has a tapered, oblique shape, with the angle of inclination differing between the platform side P and the track side T.

[0022] As shown in Figure 1(a), when viewed from the platform side, a plurality of leg parts 14 are arranged below the main body part 10 at intervals in the left-right direction. The platform door 100 is fixed to the platform 3 by the leg parts 14.

[0023] Next, the configuration of the door 2 will be described with reference to FIGS. The door 2 is slidably supported in the door pocket 1 and housed inside the door pocket 1. At this time, as shown in FIG. 1(b), the door 2R and the door 2L are arranged side by side in the thickness direction of the door pocket 1, that is, in the direction from the platform side P toward the track side T, in that order of door 2L, door 2R. The door 2 moves forward and backward from the door pocket 1 to open and close the boarding and alighting passage formed between adjacent platform doors 100. As shown in FIG. 1(a), the door 2R moves forward and backward through an opening 15 provided on the right side of the main body 10 of the door pocket 1, and opens and closes the boarding and alighting passage formed between the door 2R and another platform door 100 located to the right. The door 2L moves forward and backward through an opening 15 provided on the left side of the main body 10 of the door pocket 1, and opens and closes the boarding and alighting passage formed between the door 2R and another platform door 100 located to the left.

[0024] As shown in FIG. 3, the door 2 includes an upper door cross beam 20, a lower door cross beam 21, a bar member 22, a door tip member 23, and a door trailing member 24.

[0025] The upper door cross beam 20 and the lower door cross beam 21 are formed in a rectangular cylindrical shape and extend in the opening and closing direction of the door 2. The upper door cross beam 20 and the lower door cross beam 21 are arranged at a distance in the vertical direction. The upper door cross beam 20 is arranged in a position where at least a portion thereof is accommodated inside the upper door-edge storage section 11 of the door pocket 1. The lower door cross beam 21 is arranged in a position where at least a portion thereof is accommodated inside the lower door-edge storage section 12 of the door pocket 1.

[0026] The bar member 22 is formed in a cylindrical shape and extends in the door opening / closing direction. The bar members 22 are arranged between the upper door cross beam 20 and the lower door cross beam 21 at intervals in the vertical direction. When the door 2 includes multiple bar members 22, the bar members 22 are arranged vertically at intervals. The bar members 22 are formed in a circular or elliptical shape in a cross-sectional view. The cross-sectional view refers to a cross section of the bar member 22 cut along a plane perpendicular to the direction in which the bar member 22 extends, i.e., the door opening / closing direction. Note that in this embodiment, a configuration in which the door 2 includes the bar member 22 will be described. However, for example, if the distance between the upper door cross beam 20 and the lower door cross beam 21 is smaller than the size of an object, such as a person's hand or luggage, that needs to be prevented from passing through, the door 2 may not include the bar member 22.

[0027] The door edge member 23 is a member extending in the vertical direction, and is joined to the door edge side ends of the upper door cross beam 20, the lower door cross beam 21, and the bar member 22. As shown in Figure 2, in the platform door 100 of this embodiment, when the door 2 is in an open state, a gap is formed between the door edge member 23 of the door 2 and the main body 10 of the door pocket 1. More specifically, when viewed from the platform side, the gap is formed in a portion of the end 10a of the main body 10 of the door pocket 1 on the closing direction side of the door 2, between the position where the upper door edge storage section 11 is provided and the position where the lower door edge storage section 12 is provided.

[0028] As shown in FIG. 3, the door trailing edge member 24 is a member that extends in the vertical direction, and is joined to the end portions of the upper door cross beam 20, the lower door cross beam 21, and the bar member 22 on the door trailing edge side.

[0029] Here, the effects obtained by the configuration of the door 2 of this embodiment will be described. The wind pressure load specifications for platform doors are designed to withstand the most severe conditions, such as typhoons. If the doors are made of plate-shaped panel members, the wind load received by the doors is directly transferred to the platform, necessitating reinforcement work to increase the strength of the platform. In contrast, the platform doors of this embodiment are equipped with doors with a frame structure formed by upper door cross beams, lower door cross beams, bar members, door edge members, and door tail members, which allows wind to pass through the doors more easily and reduces the wind load received by the doors.

[0030] Next, the drive mechanism 4 and guide support unit 5 of the platform door 100 will be described with reference to Figures 3 and 4. Note that in Figure 3, to make it easier to understand the internal structure of the platform door 100, the main body 10 of the door pocket 1, the upper door-edge storage unit 11, and the lower door-edge storage unit 12 are shown in a see-through state, and these are integrated and indicated by dashed lines. Also, only door 2L is shown, with door 2R omitted. Note that in the platform door 100 of this embodiment, doors 2R and 2L are each provided with a drive mechanism 4 and a guide support unit 5, but because they have the same configuration, description of door 2L will be omitted.

[0031] The platform door 100 includes a drive mechanism 4 for driving the door 2, and a guide support unit 5 for smoothly sliding the door 2. The drive mechanism 4 is disposed at the bottom of the platform door 100, and the guide support unit 5 is disposed at the top of the platform door 100.

[0032] The drive mechanism 4 includes a drive pulley 40, driven pulleys 41 and 42, and a timing belt 43. Although the present embodiment describes a configuration including a belt-type drive mechanism, the present invention is not limited to this, and may include, for example, a pinion-rack-type drive mechanism.

[0033] The drive pulley 40 is journalled at the lower part inside the door pocket 1 and is driven to rotate by a motor (not shown).

[0034] The driven pulleys 41 and 42 are journalled at the lower part inside the door pocket 1 and are arranged at positions spaced apart in the left-right direction with the drive pulley 40 sandwiched therebetween.

[0035] The timing belt 43 is fixed to the lower part of the door 2. One of both ends of the timing belt 43 is fixed to the end of the door 2 on the leading edge side, and the other is fixed to the end of the door 2 on the trailing edge side. More specifically, one end of the timing belt 43 is fixed to the end of the lower door cross beam 21 on the leading edge side, and the other end is fixed to the end of the lower door cross beam 21 on the trailing edge side. The timing belt 43 is stretched over a drive pulley 40 and driven pulleys 41 and 42. When a motor (not shown) is driven and the drive pulley 40 rotates, the junction of the drive pulley 40 and the driven pulleys 41 and 42 with the timing belt 43 moves, and the door 2 opens and closes.

[0036] The guide support unit 5 includes a guide unit 52 and support units 50 and 51 that slide along the guide unit 52. For example, the guide unit 52 is realized by a linear guide rail, and the support units 50 and 51 are realized by linear guide bearings.

[0037] The guide portion 52 is provided at the upper part inside the door pocket 1 and extends along the opening and closing direction of the door 2. Both ends of the guide portion 52 are fixed inside the upper door-edge storage portions 11 provided on both the left and right sides of the main body portion 10 of the door pocket 1, respectively.

[0038] The support parts 50, 51 are arranged at an interval at the top of the door 2 on the door edge side along the opening and closing direction of the door 2. For example, of the support parts 50, 51, the support part 50 arranged on the door edge side is fixed to the upper door cross beam 20, and the support part 51 arranged on the door edge side is fixed to the upper door cross beam 20. When a load is applied to the door 2, the load is applied to the support parts 50, 51. In other words, the support parts 50, 51 support the load applied to the door. The greater the interval between the support parts 50, 51, the greater the load that can be supported by the support parts 50, 51. On the other hand, the longer the distance from the door edge of the door 2 to the support part 50, the greater the load applied to the support parts 50, 51. Therefore, the arrangement of the support parts 50, 51 is determined according to the magnitude of the load to be supported by the support parts 50, 51.

[0039] While the present embodiment has been described as an example of a configuration in which the drive mechanism 4 is arranged below the platform door 100, the drive mechanism 4 may also be arranged above the platform door 100. For example, the timing belt 43 may be fixed to the upper door cross beam 20 of the door 2, and the drive pulley 40 and driven pulleys 41, 42 may be journaled at the top inside the door pocket 1. When the drive mechanism 4 and the guide support unit 5 are arranged above the platform door 100, the door pocket 1a may be configured to include only an upper door edge storage unit 11 and not a lower door edge storage unit 12, as in the platform door 101 shown in Figure 4(a).

[0040] Similarly, while the present embodiment has been described as an example of a configuration in which the guide support unit 5 is arranged at the top of the platform door 100, the guide support unit 5 may also be arranged at the bottom of the platform door 100. For example, the guide unit 52 may be provided at the bottom inside the door pocket 1, and the support units 50 and 51 may be arranged at the bottom of the door trailing edge of the door 2, spaced apart in the direction in which the door opens and closes. When the drive mechanism 4 and the guide support unit 5 are arranged at the bottom of the platform door 100, the door pocket 1b may be configured to include only the lower door edge storage unit 12, without the upper door edge storage unit 11, as in the platform door 102 shown in Figure 4(b).

[0041] Furthermore, in the present embodiment, a configuration has been described in which the guide portion 52 is provided in the door pocket 1 and the support portions 50, 51 are provided in the door 2, but a configuration in which the guide portion 52 is provided in the door 2 and the support portions 50, 51 are provided in the door pocket 1 may also be used. In other words, it is sufficient that the guide support portion 5 is interposed between the door pocket 1 and the door 2 and can move the door 2 in a sliding manner. In either configuration, the support portions 50, 51 support the load acting on the door.

[0042] Next, the operation of the platform door 100 will be described with reference to FIG. Figure 3(a) shows the state in which the door 2 has advanced from the door pocket 1 to close the boarding and alighting passage, i.e., the state in which the door 2 is closed, and Figure 3(b) shows the state in which the door 2 has retreated into the door pocket 1 to open the boarding and alighting passage, i.e., the state in which the door 2 is open.

[0043] When the platform door 100 receives a command to close the door 2 from a control device (not shown) while the door 2 is stored in the door pocket 1, it activates the motor to move the door 2 in a sliding manner, causing the door 2 to move forward from the door pocket 1. As a result, the platform door 100 enters a state in which the door 2 is closed, as shown in FIG. 3(a).

[0044] When the door 2 is closed, of the support parts 50, 51 provided on the upper door cross beam 20, the support part 50 located on the door tip side is located inside the upper door tip storage part 11, that is, on the closing side of the door 2 in the opening and closing direction relative to the main body part 10 of the door pocket 1. In this way, by providing the upper door tip storage part 11, the support part 50 can be located closer to the door tip than before when the door is closed, which shortens the distance from the door tip of the door 2 to the support part 50 and reduces the load supported by the support parts 50, 51. As a result, the strength required for the platform door 100 is reduced, making it possible to make the platform door 100 thinner and lighter.

[0045] On the other hand, when the platform door 100 receives a command to open the door 2 from a control device (not shown) while the door 2 is in a state where it has advanced from the door pocket 1, it activates the motor to move the door 2 in a sliding manner and retract the door 2 into the door pocket 1. As a result, the platform door 100 enters a state where the door 2 is open, as shown in FIG. 3(b).

[0046] When the door 2 is in the open state, the upper part of the door edge member 23 is accommodated inside the upper door edge accommodation portion 11 of the door pocket 1, and the lower part of the door edge member 23 is accommodated inside the lower door edge accommodation portion 12 of the door pocket 1. In this way, when the door 2 is in the open state, the door edge member 23 of the door 2 retracts to a position where it is accommodated in the door pocket 1, and the door edge of the door 2 no longer protrudes from the door pocket 1 into the getting-in and alighting passageway, thereby preventing the width of the getting-in and alighting passageway from narrowing.

[0047] Furthermore, when the door 2 is in an open state, the door edge member 23 is located closer to the passenger passageway than the main body 10 of the door pocket 1, and a gap is formed between the door edge member 23 and the main body 10 of the door pocket 1. In particular, in the platform door 100 of this embodiment, at least one of the upper door edge storage section 11 and the lower door edge storage section 12 is provided at the end 10a of the main body 10 of the door pocket 1, and a recess is formed at the end 10a of the main body 10, thereby making it possible to easily form a gap between the door edge member 23 and the main body 10 of the door pocket 1. In other words, even when the door 2 is retracted to a position where the door edge member 23 of the door 2 is stored inside the door edge storage sections 11, 12 of the door pocket 1, a gap can be formed between the door edge member 23 and the main body 10 of the door pocket 1. This prevents the width of the passenger passageway from becoming narrower and prevents a person's hand, luggage, or the like from being caught between the door edge member 23 of the door 2 and the door pocket 1.

[0048] Next, the positional relationship between the door end member 23 and the door end accommodating sections 11, 12 will be described with reference to Figs. 1(c), 1(d) and 5.

[0049] Figure 5 shows a platform door 103 having a different configuration of the door-end storage section from the platform door 100 of this embodiment, where Figure 5(a) shows a state in which a part of the door 2 of the platform door 103 has advanced out of the door pocket 1c, and Figure 5(b) shows a state in which the door 2 of the platform door 103 has retracted into the door pocket 1c.

[0050] First, the configuration of the platform door 103 will be described with reference to FIG. As shown in FIG. 5(a), the upper door edge storage section 16 of the platform door 103 is formed to be longer in the vertical direction than the upper door edge storage section 11 of the platform door 100. Therefore, when the platform door 103 is viewed from the platform side, the position of the lower end 16a of the upper door edge storage section 16 is located lower than the position of the lower end 20a of the door upper cross beam 20. Similarly, the lower door edge storage section 17 of the platform door 103 is formed to be longer in the vertical direction than the lower door edge storage section 12 of the platform door 100. Therefore, when the platform door 103 is viewed from the platform side, the position of the upper end 17a of the lower door edge storage section 17 is located higher than the position of the upper end 21a of the door lower cross beam 21.

[0051] In the platform door 103 configured in this way, as shown in Figure 5(b), when the door 2 is in the open state, a gap is formed between the door edge member 23 and the main body 10, which makes it possible to prevent a person's hand, luggage, etc. from being caught between the door edge member 23 and the main body 10, just like the platform door 100. In addition, since the support part 50 can be positioned closer to the door edge than before, it is also possible to reduce the load supported by the support part.

[0052] However, when the door 2 of the platform door 103 advances from the door pocket 1, a gap is formed at the position indicated by the dotted circle S3 in FIG. 5( a), that is, between the door edge member 23 and the upper door edge storage section 16. This gap disappears when the door 2 retracts into the door pocket 1, as shown in FIG. 5( b). For this reason, there is a possibility that a person's hand, luggage, etc. may be caught between the door edge member 23 and the upper door edge storage section 16 when the door 2 opens. Similarly, when the door 2 of the platform door 103 advances from the door pocket 1, a gap is formed at the position indicated by the dotted circle S4 in FIG. 5( a), that is, between the door edge member 23 and the lower door edge storage section 17. This gap disappears when the door 2 retracts into the door pocket 1, as shown in FIG. 5( b). For this reason, there is a possibility that a person's hand, luggage, etc. may be caught between the door edge member 23 and the lower door edge storage section 17.

[0053] In contrast, in the platform door 100 of this embodiment, as shown in FIG. 1( c), when viewed from the platform side, the lower end 20 a of the upper door cross beam 20 is positioned below or at the same position as the lower end 11 a of the upper door edge storage section 11. With this configuration, no gap is always formed between the door edge member 23 of the platform door 100 and the upper door edge storage section 11, thereby preventing a person's hand, luggage, etc. from being caught between the door edge member 23 and the upper door edge storage section 11. Similarly, as shown in FIG. 1( d), when viewed from the platform side, the upper end 21 a of the lower door cross beam 21 is positioned above or at the same position as the upper end 12 a of the lower door edge storage section 12. With this configuration, no gap is always formed between the door edge member 23 of the platform door 100 and the lower door edge storage section 12, thereby preventing a person's hand, luggage, etc. from being caught between the door edge member 23 and the lower door edge storage section 12.

[0054] <Variation 1> The configuration of variant 1 of the platform door 100 according to this embodiment will be described with reference to the drawings. The platform door 104 of this variant differs from the platform door 100 in that it is equipped with a vibration prevention function to suppress flapping of the door 65 when the door 65 is opened or closed. The following description will focus on the differences from the platform door 100 according to this embodiment.

[0055] Figure 6 is a diagram showing an example of the configuration of the platform door 104 according to this modified example, where Figure 6(a) is a front view of the platform door 104 as seen from the platform side, and Figure 6(b) is a cross-sectional view taken along the BB cross-sectional line shown in Figure 6(a). Note that in Figure 6(a) the main body 10 and door tip storage sections 11 and 12 of the door pocket 64 are shown in a see-through state, and these are integrated and shown by dashed lines, to make it easier to understand the internal structure of the platform door 104.

[0056] As shown in Fig. 6(a), the platform door 104 of this modified example includes a door pocket 64 and a door 65. The anti-vibration function is achieved by a suppression member 70 provided in the door pocket 64 and a groove 72 provided in a door lower cross beam 71 of the door 65.

[0057] The suppression member 70 is a rail for preventing vibration that extends in the opening and closing direction of the door 65, and is provided on the bottom surface inside the door pocket 64. Both ends of the suppression member 70 are fixed inside the lower door edge storage parts 12 provided on both the left and right sides of the main body part 10 of the door pocket 64, respectively.

[0058] As shown in Fig. 6(b), a groove 72 extending in the opening and closing direction of the door 65 is formed on the lower surface of the door lower cross beam 71. The groove 72 is formed to slide on the upper surface, the platform side surface, and the track side surface of the suppression member 70, and the suppression member 70 is inserted into the groove 72.

[0059] In the platform door 104 configured in this manner, the groove 72 provided in the lower door cross beam 71 and the restraining member 70 provided in the door pocket 64 are in sliding contact with each other, so that the fluttering of the lower door cross beam 71 when the door 65 opens and closes can be suppressed.

[0060] <Variation 2> The configuration of Modified Example 2 of the platform door 100 according to this embodiment will be described with reference to the drawings. The platform door 105 of this modification has a different anti-vibration function from Modified Example 1. The following description will focus on the differences from the platform door 100 of this embodiment.

[0061] Figure 7 is a diagram showing an example of the configuration of the platform door 105 according to this modified example, where Figure 7(a) is a front view of the platform door 105 as seen from the platform side, and Figure 7(b) is a cross-sectional view taken along the CC cross-sectional line shown in Figure 7(a). Note that in Figure 7(a) the main body 10 and door tip storage sections 11 and 12 of the door pocket 66 are shown in a see-through state, and these are integrated and shown by dashed lines, in order to make it easier to understand the internal structure of the platform door 105.

[0062] As shown in Figure 7(a), the platform door 105 of this modified example includes a door pocket 66 and a door 67. The anti-vibration function is achieved by a suppression member 73 provided in the door pocket 66 and a sliding part 74 provided on a door lower cross beam 76 of the door 67.

[0063] The suppression member 73 is a rail for preventing the door 67 from swinging out and extending in the opening and closing direction, and is provided on the bottom surface inside the door pocket 66. Both ends of the suppression member 73 are fixed inside the lower door-edge storage compartments 12 provided on both the left and right sides of the main body 10 of the door pocket 66, respectively.

[0064] A plurality of sliding portions 74 are arranged at intervals below the lower door cross beam 76 in the opening / closing direction of the door 67. The sliding portions 74 protrude downward from the underside of the lower door cross beam 76. The sliding portion 74 is composed of a sliding member 74a arranged on the platform-side surface of the lower door cross beam 76 and a sliding member 74b arranged on the track-side surface. The sliding members 74a and 74b are provided in opposing positions across the lower door cross beam 76. The portions of the sliding members 74a and 74b that protrude downward from the underside of the lower door cross beam 76 are formed to slide against the platform-side surface and track-side surface of the suppression member 73. The suppression member 73 is inserted between the portions of the sliding members 74a and 74b that protrude downward from the underside of the lower door cross beam 76.

[0065] In the platform door 105 configured in this manner, the sliding portion 74 provided on the lower door cross beam 76 and the restraining member 73 provided on the door pocket 66 are in sliding contact with each other, so that fluttering of the lower door cross beam 76 when the door 67 opens and closes can be suppressed.

[0066] <Variation 3> With reference to the drawings, a third modified example of the configuration of the platform door 100 according to this embodiment will be described. The platform door 106 of this modified example differs from the platform door 100 in that a buffer member 6 is provided on the door 62. The following description will focus on the differences from the platform door 100 of this embodiment.

[0067] FIG. 8 is a diagram showing an example of the configuration of the platform doors 106 according to this modified example, and is a front view of the platform doors 106 as seen from the platform side.

[0068] The platform door 106 of this modified example is configured so that when the door 62 is in the open position, a gap is provided between the door edge member 23 of the door 62 and the main body 10 of the door pocket 1. However, if the door 62 is opened while a person's hand or luggage, etc. is between the door edge member 23 and the main body 10 of the door pocket 1, the person's hand or luggage, etc. will be pinched between the door edge member 23 and the main body 10 of the door pocket 1 and will be subjected to an impact.

[0069] In contrast, as shown in Fig. 8, in the platform door 106 of the present modified example 3, buffer members 6 are provided on the door end member 23 side between the door upper cross beam 20 and the bar member 22, between adjacent bar members 22, and between the bar member 22 and the door lower cross beam 21. In other words, the buffer members 6 are provided along the surface of the door end member 23 on the door pocket 1 side, in other words, along the end face of the door end member 23 on the door opening direction side.

[0070] In the platform door 106 configured in this manner, even if the door 62 opens with a person's hand, luggage, or the like caught between the bar members 22 or the like, the person's hand, luggage, or the like is caught not between the door end member 23 of the door 62 and the main body 10 of the door pocket 1, but between the buffer member 6 and the main body 10 of the door pocket 1, thereby cushioning the impact on the person's hand, luggage, or the like. The buffer member 6 is made of a soft material such as rubber or resin. The buffer member 6 may also be a contact sensor. For example, a contact sensor may be installed on the surface of the door end member 23 facing the door pocket 1, and when the contact sensor detects that a person's hand, luggage, or the like is caught between the door 62 and the main body 10 of the door pocket 1, the door 62 may be reversed to cushion the impact on the person's hand, luggage, or the like.

[0071] <Variation 4> With reference to the drawings, a fourth modified example of the configuration of the platform door 100 according to this embodiment will be described. The platform door 107 of this modified example differs from the platform door 100 in the configuration of the door tip storage sections 18, 19 of the door pocket 1d. The following description will focus on the differences from the platform door 100 of this embodiment.

[0072] Figure 9 is a diagram showing an example of the configuration of platform doors 107 according to this modified example, with Figure 9(a) showing a state in which part of door 2 of platform doors 107 has advanced from door pocket 1d, and Figure 9(b) showing a state in which door 2 of platform doors 107 has retracted into door pocket 1d. Figure 9(c) is an enlarged view of the part indicated by dotted circle S5 in Figure 9(b), and Figure 9(d) is an enlarged view of the part indicated by dotted circle S6 in Figure 9(b).

[0073] As shown in Figure 9(a), the door pocket 1d of the platform door 107 of this modified example comprises a main body 10, an upper door front storage section 18, a lower door front storage section 19, a cover 13, and a leg section 14.

[0074] The upper door end storage section 18 is configured so that its lower end 18a is located below the lower end 20a of the door upper cross beam 20. The upper door end storage section 18 is also provided with a chamfered portion 18c formed by C-chamfering or R-chamfering the lower corner of the end 18b of the upper door end storage section 18 on the door 2 closing direction side. The lower corner of the end 18b of the upper door end storage section 18 on the door 2 closing direction side is a corner formed by extending the end 18b of the upper door end storage section 18 on the door 2 closing direction side and the lower end 18a of the upper door end storage section 18. In other words, the chamfered portion 18c is located between the end 18b of the upper door end storage section 18 on the door 2 closing direction side and the lower end 18a of the upper door end storage section 18. The lower end of the end 18b of the upper door end storage section 18 on the door 2 closing direction side is configured to be above the lower end 20a of the door upper cross beam 20.

[0075] The lower door end storage section 19 is configured so that its upper end 19a is positioned above the upper end 21a of the door lower cross beam 21. The lower door end storage section 19 is also provided with a chamfered portion 19c formed by C-chamfering or R-chamfering the upper corner of the end 19b of the lower door end storage section 19 on the door 2 closing direction side. The upper corner of the end 19b of the lower door end storage section 19 on the door 2 closing direction side is a corner formed by extending the end 19b of the lower door end storage section 19 on the door 2 closing direction side and the upper end 19a of the lower door end storage section 19. In other words, the chamfered portion 19c is located between the end 19b of the lower door end storage section 19 on the door 2 closing direction side and the upper end 19a of the lower door end storage section 19. The lower end of the end 19b of the lower door end storage section 19 on the door 2 closing direction side is configured to be lower than the upper end 21a of the door lower cross beam 21.

[0076] Next, the operation of the platform door 107 will be explained.

[0077] When the door 2 of the platform door 107 advances from the door pocket 1d, as shown in Figure 9(a), no gap is formed between the door tip member 23 and the end 18b on the closing direction side of the door 2 of the upper door tip storage section 18. Furthermore, when the door 2 of the platform door 107 retracts into the door pocket 1d, as shown in Figure 9(b), no gap is formed between the door tip member 23 and the end 18b on the closing direction side of the door 2 of the upper door tip storage section 18. On the other hand, when the door 2 of the platform door 107 advances from the door pocket 1d, as shown in Figure 9(a), a gap is formed between the door tip member 23 and the chamfered portion 18c of the upper door tip storage portion 18. Also, when the door 2 of the platform door 107 retracts into the door pocket 1d, as shown in Figure 9(b), a gap is formed between the door tip member 23 and the chamfered portion 18c of the upper door tip storage portion 18.

[0078] Similarly, when the door 2 of the platform door 107 advances from the door pocket 1d, as shown in Figure 9(a), no gap is formed between the door tip member 23 and the end 19b on the closing direction side of the door 2 of the lower door tip storage section 19. Furthermore, when the door 2 of the platform door 107 retracts into the door pocket 1d, as shown in Figure 9(b), no gap is formed between the door tip member 23 and the end 19b on the closing direction side of the door 2 of the lower door tip storage section 19. On the other hand, when the door 2 of the platform door 107 advances from the door pocket 1d, as shown in Figure 9(a), a gap is formed between the door tip member 23 and the chamfered portion 19c of the lower door tip storage portion 19. Also, when the door 2 of the platform door 107 retracts into the door pocket 1d, as shown in Figure 9(b), a gap is formed between the door tip member 23 and the chamfered portion 19c of the lower door tip storage portion 19.

[0079] With this configuration, even if the lower end 20a of the door upper cross beam 20 is positioned above the lower end 18a of the upper door edge storage section 18, no gap is formed between the door edge member 23 and the end 18b of the upper door edge storage section 18 on the door 2 closing direction side. Furthermore, a gap of width X1 or greater shown in FIG. 9(c) is always formed between the door edge member 23 and the chamfered portion 18c of the upper door edge storage section 18. In other words, no gap is formed between the door edge member 23 and the upper door edge storage section 18 that disappears when the door is opened or closed. This makes it possible to prevent a person's hand, luggage, etc. from getting caught between the door edge member 23 and the upper door edge storage section 18.

[0080] Similarly, even if the upper end 21a of the lower door cross beam 21 is positioned below the upper end 19a of the lower door edge storage section 19, there is always no gap between the door edge member 23 and the end 19b of the lower door edge storage section 19 on the door 2 closing direction side. Furthermore, there is always a gap of width X2 or greater shown in FIG. 9(d) between the door edge member 23 and the chamfered portion 19c of the lower door edge storage section 19. In other words, there is no gap between the door edge member 23 and the lower door edge storage section 19 that disappears when the door is opened or closed. This makes it possible to prevent a person's hand, luggage, etc. from getting caught between the door edge member 23 and the lower door edge storage section 19.

[0081] The chamfered portion 18c of the upper door edge storage portion 18 is formed so that the gap between it and the door edge member 23 becomes larger toward the bottom. Similarly, the chamfered portion 19c of the lower door edge storage portion 19 is formed so that the gap between it and the door edge member 23 becomes larger toward the top. With this configuration, if a person's hand or luggage is present between the door edge member 23 and the door edge storage portions 18, 19, the end faces of the chamfered portions 18c, 19c on the closing direction side of the door 2 act as guides, guiding the person's hand or luggage into a gap wider than the gap between the door edge member 23 and the door edge storage portions 18, 19, i.e., the gap between the door edge member 23 and the main body 10 of the door pocket 1d. This prevents a person's hand or luggage from becoming caught between the door edge member 23 and the door edge storage portions 18, 19.

[0082] In this embodiment, a configuration including an upper door front storage section 18 and a lower door front storage section 19 has been described, but the configuration may also include either the upper door front storage section 18 or the lower door front storage section 19.

[0083] Furthermore, the chamfered portions 18c, 19c are not limited to shapes formed by C-chamfering or R-chamfering as long as a gap is formed between them and the door edge member 23 when the door is in an open state.

[0084] As described above, the platform door of this embodiment is a platform door comprising a door pocket, a door that is housed in the door pocket and moves in a sliding manner to open and close the boarding and alighting passageway, and a guide support part that is interposed between the door pocket and the door and moves the door in a sliding manner, the door pocket having a main body part and a door edge housing part that is provided at a part corresponding to the position where the guide support part is to be arranged among the upper and lower parts of the end part of the main body part on the door closing direction side and that protrudes from the end part on the door closing direction side, and the doors extend in the door opening and closing direction and are arranged at intervals in the vertical direction. The door has an upper door cross beam, a lower door cross beam, and a door edge member joined to the end portions of the upper door cross beam and the lower door cross beam on the door edge side, and the guide support part has a guide part that is provided on one of the door pocket or the door and extends in the opening and closing direction of the door, and a support part that is provided on the other of the door pocket or the door and is guided by the guide body and supports the weight of the door, and when the door is in the open state, a gap is formed between the door edge member of the door and the end portion of the main body of the door pocket on the door closing direction side, and when the door is in the closed state, the support part is accommodated in the door edge accommodation part of the door pocket.

[0085] With this configuration, when the door is open, a gap is formed between the door edge member of the door and the main body of the door pocket, preventing the width of the boarding and alighting passage from becoming narrower and preventing people's hands, luggage, etc. from getting caught. Furthermore, when the door is closed, the part that supports the door's load is located inside the door edge storage part, so the distance from the door edge to the position that supports the door's load can be made narrower than before, reducing the load on the position that supports the door's load and enabling the platform door to be made thinner and lighter.

[0086] In addition, by forming a gap between the upper door cross beam and the lower door cross beam that make up the door, the pressure of wind blowing from the platform side or the track side is less likely to be applied to the door, making the door less likely to be damaged by wind.

[0087] Furthermore, the platform door of this embodiment is characterized in that when the guide support portion is interposed between the door pocket and the upper door cross beam to move the door in a sliding manner, at least a portion of the upper door cross beam is accommodated in the upper door edge accommodating portion, and when the guide support portion is interposed between the door pocket and the lower door cross beam to move the door in a sliding manner, at least a portion of the lower door cross beam is accommodated in the lower door edge accommodating portion.

[0088] This configuration allows the door to have a larger vertical dimension than conventional doors.

[0089] Furthermore, the platform door of this embodiment is characterized in that when an upper door edge storage section is provided at the top of the end of the main body part on the door closing direction side, at least a part of the upper door cross beam is stored in the upper door edge storage section, and the lower end of the upper door cross beam is positioned at the same height as the lower end of the upper door edge storage section or lower than the lower end of the upper door edge storage section; and when a lower door edge storage section is provided at the bottom of the end of the main body part on the door closing direction side, at least a part of the lower door cross beam is stored in the lower door edge storage section, and the upper end of the lower door cross beam is positioned at the same height as the upper end of the lower door edge storage section or higher than the upper end of the lower door edge storage section.

[0090] With this configuration, no gap is formed between the door tip member and the door tip storage section, which prevents a person's hand or luggage from getting caught between the door tip member and the door tip storage section.

[0091] The platform door of this embodiment is characterized in that, when an upper door-edge storage section is provided at the top of the end of the main body section on the door closing direction side, at least a part of the upper door cross beam is stored in the upper door-edge storage section, and the lower end of the upper door cross beam is positioned above the lower end of the upper door-edge storage section, and the upper door-edge storage section is provided with a chamfered section formed by chamfering a lower corner of the end of the upper door-edge storage section on the door closing direction side, which forms a gap between the upper door-edge storage section and the door edge member when the door is open, and when a lower door-edge storage section is provided at the bottom of the end of the main body section on the door closing direction side, at least a part of the lower door cross beam is stored in the lower door-edge storage section, and the upper end of the lower door cross beam is positioned below the upper end of the lower door-edge storage section, and the lower door-edge storage section is provided with a chamfered upper corner of the end of the lower door-edge storage section on the door closing direction side, which forms a gap between the lower door-edge member when the door is open.

[0092] With this configuration, even if the lower end of the upper door cross beam is positioned above the lower end of the upper door edge storage section, or the upper end of the lower door cross beam is positioned below the upper end of the lower door edge storage section, no gap is formed between the door edge member and the door edge storage section that disappears when the door is opened or closed, so it is possible to prevent a person's hand or luggage from getting caught between the door edge member and the door edge storage section.

[0093] In addition, the door pocket of the platform door of this embodiment is characterized by having an internal restraining member that extends along the opening and closing direction of the door and abuts against the door to suppress door vibration.

[0094] This configuration can prevent the door from rattling when opening and closing.

[0095] In addition, the doors of the platform door in this embodiment extend in the opening and closing direction of the doors, are arranged at a vertical interval between the upper door cross beam and the lower door cross beam, and are equipped with a bar member housed in the main body of the door pocket, and the door tip member is joined to the door tip side end of the bar member.

[0096] In this way, even if the door is configured with a bar member between the upper door cross beam and the lower door cross beam, a gap is formed in the door, just as in the case where a bar member is not provided, and the pressure of wind blowing from the platform side or the track side is less likely to be applied to the door, making the door less likely to be damaged by wind.

[0097] In addition, the platform door of this embodiment is characterized in that a buffer member is provided on the end surface of the door tip member in the door opening direction.

[0098] With this configuration, even if a person's hand or luggage is caught between the door edge member and the main body of the door pocket, the impact on the person's hand or luggage can be reduced.

[0099] <Embodiment 2> In the platform door 100 of the first embodiment, the door pocket 1 has been described as being configured with plate-shaped panel members arranged on the platform side and track side of the main body 10. In contrast, the platform door 200 of the present embodiment differs in that the main body of the door pocket is configured with a cylindrical member. The following will focus on the differences from the first embodiment. Furthermore, items that are not specifically described will be the same as those in the first embodiment, and the same functions or configurations will be described using the same reference numerals.

[0100] The configuration of the platform door 200 according to this embodiment will be described with reference to the drawings. Figure 10 is a diagram showing an example of the configuration of the platform door 200 of this embodiment, where Figure 10(a) is a front view of the platform door 200 as seen from the platform side, Figure 10(b) is a cross-sectional view along the DD cross-section line shown in Figure 10(a), and Figure 10(c) is a cross-sectional view along the EE cross-section line shown in Figure 10(a).

[0101] The platform door 200 of this embodiment comprises a door pocket 201 and a door 202.

[0102] Next, the configuration of the door pocket 201 will be described with reference to the drawings. 10(a), the door pocket 201 includes door pocket vertical beams 210, 211, a door pocket upper cross beam 212, a door pocket lower cross beam 213, a bar member accommodating section 214, an upper door tip accommodating section 11, a lower door tip accommodating section 12, a cover 13, and legs 14. In this embodiment, the door pocket vertical beams 210, 211, the door pocket upper cross beam 212, the door pocket lower cross beam 213, and the bar member accommodating section 214 correspond to the main body of the door pocket 201.

[0103] The door pocket upper cross beam 212 is formed in a box shape that is long in the left-right direction, and has openings 215 on both side surfaces in the opening and closing direction of the door 202, as shown in FIG. 10(b). The openings 215 are provided at positions where the upper door cross beam 20 of the door 202 passes when the door 202 enters or leaves the door pocket 201. The vertical dimension of the door pocket upper cross beam 212 is configured to be larger than the vertical dimension of the upper door cross beam 20. Therefore, the upper door cross beam 20 can be accommodated inside the door pocket upper cross beam 212, and there is no need for a shape that is open at the bottom, as in the upper door-end accommodation section 11. In this way, the ability to have a shape that is sealed at the bottom prevents foreign matter from entering the inside of the door pocket upper cross beam 212. In this embodiment, the guide support section 5 for moving the door 202 back and forth is accommodated inside the door pocket upper cross beam 212. A cover 13 is also arranged on the door pocket upper cross beam 212.

[0104] The door pocket lower cross beam 213 is formed in a box shape that is long in the left-right direction, and as shown in FIG. 10(b), has openings 216 on both side surfaces in the opening and closing direction of the door 202. The openings 216 are provided at positions where the lower door cross beam 21 of the door 202 passes when the door 202 enters or leaves the door pocket 201. The vertical dimension of the lower door pocket cross beam 213 is configured to be larger than the vertical dimension of the lower door cross beam 21. Therefore, the lower door cross beam 21 can be accommodated inside the door pocket lower cross beam 213, and there is no need for a shape with an open top like the lower door-end accommodation section 12. In this way, the upper part can be sealed, which prevents foreign matter from entering the inside of the lower door pocket cross beam 213. In this embodiment, the drive mechanism 4 for moving the door 202 back and forth is accommodated inside the lower door pocket cross beam 213. The legs 14 are also arranged below the lower door pocket cross beam 213.

[0105] The door pocket upper cross beam 212 and the door pocket lower cross beam 213 are arranged at an interval in the vertical direction.

[0106] The bar member accommodating portion 214 is formed in a cylindrical shape and extends in the opening and closing direction of the door. The bar member accommodating portion 214 is disposed between the door pocket upper cross beam 212 and the door pocket lower cross beam 213. In this embodiment, the bar member accommodating portions 214 are provided corresponding to the bar members 22 of the door 202. That is, the same number of bar member accommodating portions 214 as the bar members 22 of the door 202 are disposed between the door pocket upper cross beam 212 and the door pocket lower cross beam 213 at the same pitch as the bar members 22 of the door 202. The bar members 22 are accommodated in the bar member accommodating portions 214 and move in and out of the bar member accommodating portions 214 when the door 202 opens and closes. The bar member accommodating portion 214 is configured so that the bar members 22 can slide inside. In this embodiment, as shown in FIG. 10(c), of the bar members 22 of the doors 202R and 202L, the bar members 22 that are disposed at the same height are accommodated in the same bar member accommodating portion 214.

[0107] The door pocket vertical beams 210, 211 have a rectangular cross section and extend vertically. The door pocket vertical beams 210, 211 are arranged at an interval in the opening and closing direction of the door 202. The upper ends of the door pocket vertical beams 210, 211 are fixed to the lower surface of the cover 13 of the door pocket 201, and the lower ends of the door pocket vertical beams 210, 211 are fixed to the upper surfaces of the legs 14 of the door pocket 201. One end of a bar member accommodating portion 214 is joined to the side surface of the door pocket vertical beam 210, and the other end of the bar member accommodating portion 214 is joined to the side surface of the door pocket vertical beam 211.

[0108] 10(b), through holes 217 are formed in the door pocket vertical beams 210, 211, penetrating in the door opening / closing direction. The through holes 217 are formed in the same number and at the same pitch as the bar member accommodating portions 214. The bar member accommodating portions 214 are joined to the door pocket vertical beams 210, 211 at positions where the through holes 217 are provided, and the through holes 217 and the interiors of the bar member accommodating portions 214 communicate with each other.

[0109] As shown in FIG. 10(a), the upper door edge storage section 11 is provided at both left and right end portions 212a of the door pocket upper cross beam 212 of the door pocket 1, and protrudes from the end portion 212a of the door pocket upper cross beam 212 toward the closing direction in the opening and closing direction of the door 2. When viewed from the platform side, the upper door edge storage section 11 is provided at a position overlapping at least a part of the upper portion of the door 202 supported by the door pocket 201, and has a shape that is open below and on the sides. With this configuration, the upper portion of the door 202 is stored inside the upper door edge storage section 11. Note that the shape of the upper door edge storage section 11 that is open below and on both left and right sides may be a shape in which at least the portions of the underside and side surfaces of the upper door edge storage section 11 that correspond to the position where the door 202 passes are open, as shown in FIG. 10(b). In addition, the upper door cross beam 20 of the door 202 is positioned so that, when viewed from the platform side, the lower end 20a is at the same height as the lower end 11a of the upper door front storage section 11 or lower than the lower end 11a of the upper door front storage section 11.

[0110] As shown in FIG. 9(a), the lower door edge storage section 12 is provided at both left and right end portions 213a of the door pocket lower cross beam 213 of the door pocket 1, and protrudes from the end portion 213a of the door pocket upper cross beam 212 toward the closing direction in the opening and closing direction of the door 2. When viewed from the platform side, the lower door edge storage section 12 is provided at a position overlapping at least a part of the lower part of the door 202 supported by the door pocket 201, and has a shape that is open on the top and sides. With this configuration, the lower part of the door 202 is stored inside the lower door edge storage section 12. Note that the shape of the lower door edge storage section 12 that is open on the top and both left and right sides may be a shape in which at least the parts of the top surface and side surfaces of the lower door edge storage section 12 that correspond to the position where the door 202 passes are open, as shown in FIG. 10(b). In addition, the lower door cross beam 21 of the door 202 is positioned so that, when viewed from the platform side, the upper end 21a is at the same height as the upper end 12a of the lower door front storage section 12 or higher than the upper end 12a of the lower door front storage section 12.

[0111] Next, the configuration of the door 202 will be described. The door 202 is equipped with an upper door cross beam 20, a lower door cross beam 21, a bar member 22, and a door edge member 23, but does not have a door tail member 24. Therefore, it differs from the door 2 of the platform door 100 of Embodiment 1 in that the door tail side ends of the upper door cross beam 20, the lower door cross beam 21, and the bar member 22 are open. The upper door cross beam 20 is accommodated in the door pocket upper cross beam 212 and the upper door edge storage section 11 of the door pocket 201. The lower door cross beam 21 is accommodated in the door pocket lower cross beam 213 and the lower door edge storage section 12 of the door pocket 201. The bar member 22 is accommodated in the bar member storage section 214.

[0112] As described above, in the platform door 200 of this embodiment, the main body of the door pocket is provided with a cylindrical bar member accommodating section that extends along the opening and closing direction of the door, and the bar member of the door is accommodated in the bar member accommodating section and supported so as to be movable in the opening and closing direction of the door.

[0113] With this configuration, the pressure of wind blowing from the platform side or the track side is less likely to be applied not only to the doors but also to the door pockets, making the entire platform door less likely to be damaged by the wind.

[0114] <Variation 1> The configuration of Variant 1 of platform door 200 according to this embodiment will be described with reference to the drawings. Platform door 220 of this variation differs from platform door 200 in the configuration of door tip storage sections 218, 219. The structure of door tip storage sections 218, 219 of this variation is similar to the structure of door tip storage sections 18, 19 of Variant 4 of Embodiment 1, but this variation differs from Variant 4 of Embodiment 1 in the configuration of the main body of the door pocket. Therefore, the following description will focus on the differences from Variant 4 of Embodiment 1 and Embodiment 2.

[0115] FIG. 11 is a diagram showing an example of the configuration of a platform door 220 according to this modified example.

[0116] 11, the door pocket 221 includes door pocket vertical beams 210, 211, a door pocket upper cross beam 212, a door pocket lower cross beam 213, a bar member accommodating section 214, an upper door tip accommodating section 218, a lower door tip accommodating section 219, a cover 13, and legs 14. In the first modification of this embodiment, the door pocket vertical beams 210, 211, the door pocket upper cross beam 212, the door pocket lower cross beam 213, and the bar member accommodating section 214 correspond to the main body of the door pocket 221.

[0117] The upper door edge accommodating portion 218 is provided on both left and right end portions 212a of the door pocket upper cross beam 212 of the door pocket 221, and protrudes from the end portion 212a of the door pocket upper cross beam 212 toward the closing direction in the opening and closing direction of the door 202. The vertical dimension of the upper door edge accommodating portion 218 is formed to be the same as the vertical dimension of the door pocket upper cross beam 212, and the lower end portion 218a of the upper door edge accommodating portion 218 may be positioned at the same height as the lower end portion 212b of the door pocket upper cross beam 212. The upper door edge accommodating portion 218 is configured so that the position of the lower end portion 218a is lower than the position of the lower end portion 20a of the door upper cross beam 20. In addition, the upper door edge accommodating portion 218 is provided with a chamfered portion 218c formed by C-chamfering or R-chamfering the lower corner of the end portion 218b of the upper door edge accommodating portion 218 on the door 2 closing direction side.

[0118] The lower door edge accommodating portions 219 are provided on both left and right end portions 213a of the door pocket lower cross beam 213 of the door pocket 221, and protrude from the end portions 213a of the door pocket lower cross beam 213 toward the closing direction in the opening and closing direction of the door 202. The vertical dimension of the lower door edge accommodating portion 219 is formed to be the same as the vertical dimension of the door pocket lower cross beam 213, and the upper end portion 219a of the lower door edge accommodating portion 219 may be positioned at the same height as the upper end portion 213b of the door pocket lower cross beam 213. The lower door edge accommodating portion 219 is configured so that the position of the upper end portion 219a is higher than the position of the upper end portion 21a of the door lower cross beam 21. In addition, the lower door edge accommodating portion 219 is provided with a chamfered portion 219c formed by C-chamfering or R-chamfering the lower corner of the end portion 219b of the lower door edge accommodating portion 219 on the door 2 closing direction side.

[0119] With this configuration, even if the lower end of the upper door cross beam is positioned above the lower end of the upper door edge storage section, or the upper end of the lower door cross beam is positioned below the upper end of the lower door edge storage section, no gap is formed between the door edge member and the door edge storage section that disappears when the door is opened or closed, thereby preventing a person's hand or luggage from getting caught between the door edge member and the door edge storage section.

[0120] In addition, the step between the lower end 212b of the door pocket upper cross beam 212 and the lower end 218a of the upper door front storage section 218, and the step between the upper end 213b of the door pocket lower cross beam 213 and the upper end 219a of the lower door front storage section 219 are eliminated, making the shape of the door pocket 221 look neater and making it easier to manufacture. <Third Embodiment> Platform door 300 of embodiment 3 differs from platform door doors of embodiment 1 and embodiment 2 in that the door tip member of door 302 is covered with elastic member 325. The following will mainly explain the differences from embodiment 1 and embodiment 2. Items that are not specifically mentioned will be the same as embodiment 1 and embodiment 2, and the same functions or configurations will be explained using the same reference numerals.

[0121] The configuration of the platform door 300 according to this embodiment will be described with reference to the drawings. Figure 12 is a diagram showing an example of the configuration of platform doors 300 of this embodiment. Figure 12(a) is a front view of platform doors 300 seen from the platform side, and shows how the door tips of doors 302 protruding from the door pockets 1 of adjacent platform doors 300 face each other. Figures 12(b) to 12(d) and Figures 13(a) to 13(c) are top views seen from line FF shown in Figure 12(a), and show modified examples of elastic member 325 at the door tips of doors 302.

[0122] In the platform door 300 of the third embodiment, the door edge member 23 of the door 302 is covered with an elastic member 325 made of resin, rubber, or the like. Generally, the door edge member 23 of the door 302 is made of metal. Therefore, by covering the door edge member 23 with a member having a higher elasticity than metal, it is possible to mitigate the impact when a person or luggage comes into contact with the door edge of the door 302.

[0123] The elastic member 325 may be configured so that its shape when viewed from above is, for example, a semicircular shape as shown in FIG. 12(b), a rectangular shape as shown in FIG. 12(c), or a rectangular shape with chamfered or curved corners as shown in FIG. 12(d).

[0124] Furthermore, the elastic members 325 at the door edges of a pair of opposing doors 302R, 302L may be of the same shape as shown in Figures 12(b) to 12(d), or may have different configurations as shown in Figures 13(a) to 13(c). For example, as shown in Figure 13, it is more preferable to configure one elastic member 325R to be semicircular and the other elastic member 325L to be rectangular or rectangular with rounded corners.

[0125] Here, the effect of the elastic members 325 of a pair of doors 302 whose door edges face each other and have the configuration shown in Fig. 13(a) will be described with reference to the drawing. Fig. 14 is an explanatory diagram showing a state in which the door edges are misaligned when the elastic members 325 of a pair of opposing doors 302 have the same shape.

[0126] Typically, platform doors 300 are equipped with a detection means (not shown) that detects whether a person's hand, luggage, or the like is caught between the edges of a pair of opposing doors 302 when the doors 302 are closed. The detection means may, for example, detect entrapment based on the torque value of a motor that drives the doors 302, or based on the output value of a pressure sensor provided inside the elastic member 325. In order for the detection means to function accurately, platform doors 300 must be positioned so that the tips of the elastic members 325 face each other when the doors 302 are closed. Note that the "tip" refers to the vertex of the semicircular elastic member 325 in the case of a semicircular elastic member 325; one side of the rectangular door edge in the case of a rectangular elastic member 325; or the non-round-chamfered portion of one side of the rectangular door edge in the case of a rectangular shape with rounded corners. Furthermore, the tips of the edges of the opposing doors 302 may abut each other when the doors 302 are closed, or may be close to each other with a predetermined gap between them.

[0127] In addition, to make the doors appear to be arranged in an orderly manner, it is desirable to arrange the platform doors 300 so that the door edges of a pair of opposing doors 302 are aligned when the doors 302 are closed.

[0128] In such a platform door 300, if a semicircular elastic member is provided at the door tip, as shown in Figure 14(a), when one of a pair of opposing doors 302 is shifted closer to the track or platform than the other door 302, the tips of the door tips, i.e., the apexes of the semicircular elastic members, will no longer face each other. As a result, the tips of the door tips will no longer abut each other, or the distance X4 between the door tip tips will be wider than the distance preset for detecting entrapment. As a result, it will be difficult to accurately detect that a relatively thin object, such as an umbrella or an arm, has been trapped.

[0129] Furthermore, when a square-shaped elastic member is provided at the door tip, as shown in Figure 14(b), if the position of one of a pair of opposing doors 302 shifts toward the track or platform compared to the other door 302, a steep step will occur between the door tips, making the shift in position of the door 302 more noticeable than when a curved elastic member is provided at the door tip.

[0130] To align the misaligned door edges in this way, it is not possible to adjust the position of the door 302 alone, but it is necessary to readjust the position of the platform door 300, including the door pocket 1. Generally, the door pocket 1 is heavy, weighing approximately 300 to 500 kg, so this type of work requires a great deal of effort, time, and cost.

[0131] In contrast, the platform door 300 of this embodiment is configured so that one elastic member 325R is semicircular and the other elastic member 325L is rectangular or rectangular with rounded corners, as shown in Figure 13(a).

[0132] In this way, since one of the door edges is made up of a square-shaped elastic member 325, even if the door edge of the door 302 is positioned out of place, the door edges can be made to abut or come close to each other within the depth direction dimension X3 of the tip of the square-shaped elastic member 325, as shown in Figures 13(b) and 13(c), so there is no need to adjust the position of the platform door 300.

[0133] Furthermore, since one of the door edges is made of a semicircular elastic member 325, even if the position of the door 302 shifts, as shown in Figures 13(b) and 13(c), the curved surface between them makes the step between the door edges gentler and less noticeable, so the aesthetic appearance is less likely to be impaired.

[0134] <Fourth Embodiment> Platform door 400 of this fourth embodiment differs from platform doors of embodiments 1 to 3 in that it is provided with a restricting section at the door tip of door 402 that restricts movement of the door tip in the thickness direction of door 401. The following will mainly explain the differences from platform doors of embodiments 1 to 3. Items that are not specifically mentioned will be considered the same as those of platform doors of embodiments 1 to 3, and the same functions or configurations will be explained using the same reference numerals.

[0135] The configuration of the platform door 400 according to this embodiment will be described with reference to the drawings. Figure 15 is a diagram showing an example of the configuration of the platform door 400 according to this embodiment. Figure 15(a) is a front view of the platform door 400 as seen from the platform side, showing how the door tips of doors 402 protruding from the door pockets 1 of adjacent platform door 400 face each other. Figures 15(b) to 15(d) are diagrams showing modified examples of the restricting portion of the door 402. Figures 15(b) and 15(c) are top views as seen from line HH shown in Figure 15(a), and Figure 15(d) is a cross-sectional view along line GG shown in Figure 15(a).

[0136] In the platform door 400 of this embodiment, a convex portion is provided on the end surface of the door leading edge member of one of a pair of opposing doors 402, and a concave portion shaped to fit into the convex portion provided on one door 402 is provided on the end surface of the door leading edge member of the other door 402, so that the convex portion fits into the concave portion when the platform door 400 is in a closed state. The convex portion provided on the door leading edge member of one door 402 and the convex portion provided on the door leading edge member of the other door 402 form a restricting portion.

[0137] The configurations of the three types of restricting portions shown in Figs. 15(b) to 15(d) will be described below.

[0138] 15(b) is a top view showing the configuration of the restricting part of the platform door 400a. As shown in the figure, the door edge member 423 of one door 402 is provided with a protrusion 423a that has a triangular shape when viewed from above. The door edge member 424 of the other door 402 is provided with a recess 424a that fits into the triangular protrusion 423a.

[0139] 15(c) is a top view showing the configuration of the restricting part of the platform door 400b. As shown in the figure, the door edge member 425 of one door 402 is provided with a rectangular convex portion 425a that is not chamfered when viewed from above. In addition, the door edge member 426 of the other door 402 is provided with a concave portion 426a that fits into the rectangular convex portion 425a.

[0140] FIG. 15(d) is a top view showing the configuration of the restricting section of platform door 400c. As shown in the figure, door edge member 427 of one door 402 is formed so that its cross section is semicircular, and a tip of pin 430 protrudes from a through-hole provided in the end face of door edge member 427. Door edge member 428 of the other door 402 is formed so that its cross section is semicircular, and a groove 428a shaped to fit pin 30 is formed in the end face of door edge member 427. In platform door 400c, the tip of pin 430 corresponds to a convex portion, and groove 428a corresponds to a concave portion. Note that, to the base of pin 430, one end of spring 429, the other end of which is fixed to door upper cross beam 20, is fixed, and it is preferable that pin 430 be configured to be able to move in and out from the end face of door edge member 427.

[0141] Next, the effects of the platform doors 400a, 400b, and 400c of this embodiment will be described with reference to the drawings. Figure 16 is an explanatory diagram illustrating the displacement of the door of a platform door 500 that does not have a restricting unit.

[0142] 16, when door 502 of platform door 500 without a restricting unit is pushed by a passenger or the like in a direction from the platform side toward the track side, that is, in the direction indicated by arrow K in the figure, there is a possibility that the position of the door tip of door 502 protruding from door pocket 501 will be displaced. However, according to platform doors 400a, 400b, 400c of this embodiment, the convex portion and concave portion of the door tip member are configured to fit together when door 402 is closed, and therefore displacement of the door tip position of door 402 can be suppressed even if it is pushed by a passenger.

[0143] Next, the effects of the platform door 400c of this embodiment will be described with reference to the drawings. Figure 17 is an explanatory diagram illustrating the operation of the platform door 400c of this embodiment.

[0144] According to the configuration of the platform door 400c of this embodiment, even if the edge of the door 402 collides with a passenger remaining in the boarding and alighting passageway when the door 402 is moving in the closing direction as shown by the white arrow in Figure 17(a), the pin 430 is housed inside the edge member 427 of the door 402 as shown in Figure 17(b), so the impact that the edge of the door gives to the passenger can be mitigated.

[0145] Although the platform doors according to the first to fourth embodiments have been described above, the configuration of the platform doors is not limited to this. For example, the platform doors are not limited to those having a right door and a left door, and may be configured to have either a right door or a left door.

[0146] Note that the above-described first to fourth embodiments are intended to explain the present disclosure and do not limit the scope of the present disclosure. In other words, the scope of the present disclosure is defined by the claims, not the embodiments. Various modifications made within the scope of the claims and the meaning of equivalent disclosures are considered to be within the scope of the present disclosure. [Explanation of symbols]

[0147] 1 door pocket, 2 door, 3 platform, 4 drive mechanism, 5 guide support portion, 6 buffer member, 10 main body portion, 11 upper door edge storage portion, 12 lower door edge storage portion, 13 cover, 14 leg portion, 15 opening, 18 upper door edge storage portion, 18c chamfered portion, 19 lower door edge storage portion, 19c chamfered portion, 20 upper door cross beam, 21 lower door cross beam, 22 bar member, 23 door edge member, 24 door tail member, 40 drive pulley, 41 driven pulley, 42 driven pulley, 43 timing belt, 50 support portion, 51 support portion, 52 guide portion, 70 restraining member, 71 lower door cross beam, 72 groove, 73 restraining member, 74 sliding portion, 100 platform door, 214 bar member storage portion, 325 elastic member.

Claims

1. a plurality of door pockets provided at predetermined intervals on the platform; a door housed in the door pocket and slidingly moving to open and close the boarding passage; A platform door equipped with The door case includes a first door case and a second door case provided adjacent to the first door case, The doors include a first door housed in the first door pocket and a second door housed in the second door pocket, The door edges of the first door and the second door are covered with elastic members, The first elastic member covering the door edge of the first door has a semicircular shape when viewed from above, and the second elastic member covering the door edge of the second door has a rectangular shape or a rectangular shape with R-chamfered corners when viewed from above, the first door pocket and the second door pocket are provided such that, when the first door and the second door are closed, the tip ends of the first elastic member and the second elastic member face each other; The first door is positioned closer to the track or platform than the second door. Platform doors.

2. a flat surface extending linearly from the platform side toward the track side is provided at the tip end of the second elastic member, When the first door and the second door are closed, a vertex of the semicircular shape that is the tip portion of the first elastic member faces the flat surface. The platform door according to claim 1.

3. When the first door and the second door are closed, an apex of the semicircular shape abuts against the flat surface. The platform door according to claim 2.

4. When the first door and the second door are closed, an apex of the semicircular shape is close to the flat surface with a predetermined gap therebetween. The platform door according to claim 2.

5. The first elastic member and the second elastic member have a rectangular shape when viewed from the platform side. The platform door according to claim 1.

6. The door is An upper door cross beam and a lower door cross beam extending in the opening and closing direction of the door and arranged at an interval in the vertical direction; A door edge member joined to the door edge side end of the door upper cross beam and the door lower cross beam, The elastic member covers the door tip member, When the door is in an open state, a gap is formed between the door tip member of the door and an end of the door pocket on the closing direction side of the door. A platform door according to any one of claims 1 to 5.

7. a guide support part that is interposed between the door pocket and the door and that moves the door in a sliding manner, The door pocket is a main body; The door has a door edge accommodating portion provided in a portion of the upper and lower parts of the end portion of the main body on the closing direction side of the door, the portion corresponding to the position where the guide support portion is arranged, and protruding from the end portion toward the closing direction of the door, The guide support portion is a guide portion provided on one of the door pocket and the door and extending along the opening and closing direction of the door; a support portion that is provided on the other of the door pocket and the door, and that is guided by the guide portion and supports a load applied to the door; When the door is in an open state, a gap is formed between the door tip member of the door and the end portion of the main body portion of the door pocket on the door closing direction side, The platform door according to claim 6, wherein the support portion is accommodated in the door tip accommodation portion of the door pocket when the door is in a closed state.

8. The door edge accommodating portion is provided at an upper portion of the end portion of the main body portion on the door closing direction side, The door upper cross beam is at least partially accommodated in the door edge accommodating section, and the lower end of the door upper cross beam is positioned above the lower end of the door edge accommodating section, The door end accommodating portion is provided with a chamfered portion formed by chamfering a lower corner of the end portion of the door end accommodating portion on the door closing direction side, and a gap is formed between the door end member of the door when the door is in an open state, The lower end of the door upper cross beam is positioned below the upper end of the chamfered portion. The platform door according to claim 7.

9. The door edge accommodating portion is provided at a lower portion of the end portion of the main body portion on the door closing direction side, The door lower cross beam is at least partially accommodated in the door tip accommodation section, and the upper end of the door lower cross beam is positioned below the upper end of the door tip accommodation section, The door end accommodating portion is provided with a chamfered portion formed by chamfering the upper corner of the end portion of the door end accommodating portion in the closing direction of the door, and a gap is formed between the door end member of the door when the door is in an open state, The upper end of the door lower cross beam is positioned above the lower end of the chamfered portion. The platform door according to claim 7.

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