Sliding door structure for railway vehicle

Abstract

To provide a structure capable of opening / closing a sliding door without hand-touching a grip of the sliding door.SOLUTION: A sliding door structure 100 for a railway vehicle comprises a sliding door 1. The sliding door 1 includes a sliding door body 11, a handle 12, a first protrusion 13, and a second protrusion 14. The handle 12 has a grip 12G. The first and second protrusions 13 and 14 are connected to the handle 12. The first and second protrusions 13 and 14 protrude from the grip 12G toward a side opposite to the sliding door body 11. The first protrusion 13 has a part located at a position higher than the center height C1 of the sliding door body. The second protrusion 14 has a part located at a height closer to the lower end 11L of the sliding door body 11 than the center height C1 of the sliding door body. The sliding door structure 100 further comprises holding means for holding the sliding door 1 in a closed state, biasing means for biasing the sliding door 1 in an opening direction, and a movement mechanism for moving the sliding door 1 in a direction where the sliding door 1 closes.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a sliding door structure for a railway vehicle. [Background technology]

[0002] Railway vehicles are equipped with sliding doors that are opened and closed manually by users such as passengers, crew members, and workers. For example, as shown in FIG. 1(a) of Patent Document 1, a sliding door is disposed at an opening in the end bodywork of a railway vehicle. The sliding door has a grip that is gripped by the user's hand. The user holds the grip and moves it, which causes the sliding door to open. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-154909 Summary of the Invention [Problem to be solved by the invention]

[0004] In recent years, viral infections have become a problem. One of the causes of viral infection is thought to be when hands come into contact with an object, and the virus on the object is transferred to the hands, and then the hands then touch the eyes, nose, mouth, etc.

[0005] Therefore, a structure for moving an object without touching the object has been considered. It is desirable to provide a structure for a railway vehicle that allows a user to open and close a sliding door without touching a grip of the sliding door.

[0006] An object of the present invention is to provide a structure for a railway vehicle that allows a user to open and close a sliding door without touching the handle of the sliding door. [Means for solving the problem]

[0007] The sliding door structure for a railway vehicle disclosed in this specification is a sliding door structure provided on a wall of the railway vehicle and comprising a sliding door that is slidable in a direction parallel to the wall, the sliding door being disposed in an opening in the wall and capable of opening and closing the opening; a handle that has a handle that can be held by a user and is attached to the sliding door body; and a protrusion that is connected to the handle, protrudes from the handle in a direction opposite to the direction toward the sliding door body, and has a portion that is located higher than the center height of the sliding door body in the up-down direction and / or a portion that is located at a height closer to the lower end of the sliding door body than the center height of the sliding door body, and the sliding door structure further comprises a holding means that holds the sliding door in a closed state when the sliding door is closed, a biasing mechanism that biases the sliding door in a direction that opens the sliding door when a force is applied to the handle or the protrusion to open the sliding door when the sliding door is closed, and a moving mechanism that moves the sliding door in a direction that closes the sliding door when the sliding door is open.

[0008] According to the above configuration, the protrusion connected to the handle is at a height near the user's elbow, shoulder, or knee. The user can open and close the sliding door without touching the grip by applying force to the protrusion with the elbow, shoulder, or knee. Also, it is more difficult to get closer to the sliding door than the hand is to the elbow, shoulder, or knee. According to the above configuration, the protrusion is closer to the user than the grip. Therefore, the user can apply force to the protrusion without getting too close to the sliding door.

[0009] Furthermore, when the sliding door is closed, the holding means maintains the sliding door in a closed state. As a result, the sliding door will not open even if the railroad car sways while it is traveling. When the sliding door is closed and a user applies force to the grip or protrusion to open it, the biasing mechanism biases the sliding door in the direction in which it opens. Although there is a holding means, the biasing mechanism eliminates the need for the user to apply a large force to the grip or protrusion when opening the sliding door. When the sliding door is open, the movement mechanism moves the sliding door in the direction in which it closes. The sliding door closes without the user touching the grip or protrusion of the sliding door.

[0010] As described above, a structure can be provided that allows a user to open and close a sliding door without touching the grip of the sliding door. Also, since the sliding door has a grip to be held by hand, a user can hold the grip to open and close the sliding door, just like in existing railroad cars.

[0011] In the above configuration, the handle may extend in the vertical direction from a position higher than the center height of the sliding door body to a position closer to the height of the bottom end of the sliding door body than the center height of the sliding door body, and the protrusion may be connected to an upper and / or lower part of the handle.

[0012] Since the handle is long in the vertical direction, a wide range of users can use the handle. By connecting a protrusion to the upper and / or lower part of such a handle, a structure can be provided that allows a user to open and close the sliding door without touching the grip of the sliding door.

[0013] From another perspective, in the above configuration, the handle may be located at a height closer to the center of the sliding door body in the vertical direction than the upper and lower ends of the sliding door body, and the protrusion may have a portion located higher than the upper end of the handle and / or a portion located lower than the lower end of the handle in the vertical direction.

[0014] The handle is often used in existing railroad cars. By connecting the protrusion to such a handle, it is possible to provide a structure that allows a user to open and close the sliding door without touching the grip of the sliding door while still adopting the existing structure.

[0015] In the above configuration, the protrusion may include a first protrusion having a portion located at a height higher than the center height of the sliding door main body, and a second protrusion having a portion located at a height closer to the lower end of the sliding door main body than the center height of the sliding door main body.

[0016] According to the above configuration, the first protrusion is located at about the height of the user's elbow or shoulder. The second protrusion is located at about the height of the knee of an adult user or about the height of the shoulder of a child. This gives the user more options for which part of the body to use: the elbow, the shoulder, or the knee.

[0017] In the above configuration, the protrusion may have a vertically elongated portion that is long in the up-down direction.

[0018] According to the above-mentioned configuration, the range in which the protrusions are arranged is long in the vertical direction. This increases the range of ages and body types of users who can use the protrusions. In addition, users have more options for which part of the body they can use: elbows, shoulders, or knees.

[0019] In the above configuration, the protrusion has a vertical protrusion parallel to the vertical direction, an upper protrusion arranged between an upper portion of the vertical protrusion and the gripping portion, and a lower protrusion arranged between a lower portion of the vertical protrusion and the gripping portion, and the gripping portion and the vertical protrusion may be separated from each other.

[0020] According to the above-mentioned configuration, a space is formed between the vertical protrusion and the grip portion, and the user can easily push the protrusion by positioning his / her elbow, shoulder, and knee in this space.

[0021] In the above configuration, a groove or a through hole may be formed in the protrusion. The groove may be recessed in a direction in which the sliding door opens when the sliding door is closed. The through hole may penetrate in a direction in which the sliding door opens when the sliding door is closed.

[0022] According to the above configuration, a user can easily apply force to the protrusion by placing an elbow, shoulder, knee, or the like in the groove or through hole.

[0023] In the above-mentioned configuration, the grip portion may be rod-shaped, and the protrusion may be plate-shaped.

[0024] According to the above configuration, the grip portion is rod-shaped so that it is easy to grip with the hand, while the protrusion is plate-shaped having a surface that is easy to press with an elbow, shoulder, knee, etc. Therefore, the user can easily open the sliding door by using the grip portion or the protrusion.

[0025] In the above-mentioned configuration, the protrusion may have a portion having a thickness smaller than a diameter of the grip portion.

[0026] According to the above configuration, the protrusion is lightweight, making it easy for a user to push the protrusion.

[0027] In the above-described configuration, at the connection position with the handle, the protrusion faces in a direction perpendicular to the direction in which the sliding door slides and perpendicular to the up-down direction, and as the protrusion moves away from the connection position with the gripping portion, the protrusion may be inclined so as to approach one of the ends in the width direction of the sliding door body that is separated from the wall portion when the sliding door is opened, or may be curved concavely away from the sliding door body.

[0028] Because the protrusion has the above-mentioned shape, the user can easily know the direction in which to push the protrusion with his / her elbow, shoulder or knee. Also, the user can easily apply force with his / her elbow, shoulder or knee to the protrusion in the direction in which the sliding door opens.

[0029] The rail car disclosed in this specification has the above-mentioned sliding door structure. Effect of the Invention

[0030] According to the present invention, it is possible to provide a structure that allows a user to open and close a sliding door without touching the grip of the sliding door. [Brief description of the drawings]

[0031] [Figure 1] FIG. 1 is a perspective view of a sliding door structure for a railway vehicle according to a first embodiment. [Diagram 2] 2 is an enlarged view of a grip portion, a first protrusion, and a second protrusion shown in FIG. 1. [Diagram 3]2 is a top view of a portion of the sliding door structure shown in FIG. 1, showing the sliding door in a closed state. FIG. [Figure 4] FIG. 2 is a top view of a portion of the sliding door structure immediately after the sliding door has been opened. [Diagram 5] FIG. 2 is a top view of a portion of the sliding door structure, showing the sliding door in an opening operation. [Figure 6] 1(a) to 1(c) are schematic diagrams illustrating a moving means of the sliding door structure. [Figure 7] This is a diagram of a sliding door being opened by a shoulder. [Figure 8] This is a diagram showing a sliding door being opened by using an elbow. [Figure 9] This is a diagram showing a sliding door being opened using a knee. [Figure 10] 1A is a front view of a sliding door structure according to a first modified example of the first embodiment, showing the sliding door in an open state, and FIG. 1B is a front view of a sliding door structure according to a second modified example of the first embodiment, showing the sliding door in an open state. [Figure 11] 1A is a front view of a sliding door structure according to a third modified example of the first embodiment, showing the sliding door in an open state, and FIG. 1B is a front view of a sliding door structure according to a fourth modified example of the first embodiment, showing the sliding door in an open state. [Figure 12] FIG. 11 is a perspective view of a railcar sliding door structure according to a second embodiment. [Figure 13] 13 is a top view of a portion of the sliding door structure shown in FIG. 12, showing the sliding door in a closed state. FIG. [Figure 14] 13A is a perspective view of a sliding door structure according to a fifth modified example of the second embodiment, showing the sliding door in a closed state, and FIG. 13B is a perspective view of a sliding door structure according to a sixth modified example of the second embodiment, showing the sliding door in a closed state. [Figure 15] 13A is a perspective view of a sliding door structure according to a seventh modified example of the second embodiment, showing the sliding door in a closed state, and FIG. 13B is a perspective view of a sliding door structure according to an eighth modified example of the second embodiment, showing the sliding door in a closed state. [Figure 16] FIG. 11 is a front view of the sliding door structure for a railway vehicle according to the third embodiment, showing the sliding door in an open state. [Figure 17] 13A is a front view of a sliding door structure according to a ninth modified example of the third embodiment, showing the sliding door in an open state, and FIG. 13B is a front view of a sliding door structure according to a tenth modified example of the third embodiment, showing the sliding door in an open state. [Figure 18] 13(a) to 13(c) are schematic diagrams illustrating modified examples of the movement means of the sliding door structure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0032] [First embodiment] Here, a railroad vehicle sliding door structure 100 according to a first embodiment of the present invention will be described below with reference to Figs. 1 to 9. The railroad vehicle sliding door structure 100 is used in a wall portion of the railroad vehicle. The sliding door structure 100 is used, for example, in an end bodywork of the railroad vehicle, or in a wall portion that separates two rooms inside the railroad vehicle.

[0033] Fig. 1 shows a part of a wall portion 110 of a railway vehicle. The wall portion 110 is equipped with a sliding door structure 100. The sliding door structure 100 is equipped with a sliding door 1, a holding means 2, a biasing mechanism 3, and a moving mechanism 4, which are not shown in Fig. 1. The holding means 2, the biasing mechanism 3, and the moving mechanism 4 will be described later.

[0034] 1 has an opening 111. The sliding door 1 is disposed in the opening 111.

[0035] The sliding door 1 is slidable in a direction parallel to the wall portion 110 and perpendicular to the up-down direction. Hereinafter, the up-down direction will be referred to as the Y direction.

[0036] The sliding door 1 has a sliding door body 11, a handle 12, a first protrusion 13, and a second protrusion 14.

[0037] (Handle) The handle 12 is attached to a position close to one end in the width direction of the sliding door body 11. Hereinafter, the width direction of the sliding door body 11 is referred to as the X direction. Also, the thickness direction of the sliding door body 11 is referred to as the Z direction.

[0038] 1, when the sliding door 1 is disposed in the opening 111 of the wall portion 110, the X direction, the Y direction, and the Z direction are mutually perpendicular. In other words, when the sliding door 1 is disposed in the opening 111 of the wall portion 110, the width direction, the up-down direction, and the thickness direction of the sliding door main body 11 are mutually perpendicular. When the sliding door 1 is disposed in the opening 111 of the wall portion 110, the sliding door slides in the X direction.

[0039] The handle 12 has a gripping portion 12G, a first mounting portion 12A, and a second mounting portion 12B. The gripping portion 12G is a long cylindrical rod. The gripping portion 12G is thick enough for a user to grip it with his / her hand. The gripping portion 12G extends in the Y direction from a position higher than the height C1 of the center of the sliding door main body 11 to a height closer to the lower end 11L of the sliding door main body 11 than C1.

[0040] An upper end of the gripping portion 12G is attached to the sliding door main body 11 by a first attachment portion 12A. A lower end of the gripping portion 12G is attached to the sliding door main body 11 by a second attachment portion 12B.

[0041] (1st protruding body, 2nd protruding body) The first protrusion 13 is connected to an upper portion of the grip portion 12G. The first protrusion 13 is shorter than the grip portion 12G in the Y direction. The first protrusion 13 has a portion that is positioned higher than C1 in the Y direction.

[0042] The second protrusion 14 is connected to the lower part of the gripping portion 12G. The second protrusion 14 is shorter than the gripping portion 12G in the Y direction. The second protrusion 14 has a portion that is closer to the height of the lower end 11L of the sliding door main body 11 than C1 in the Y direction.

[0043] The first protrusion 13 and the second protrusion 14 are spaced apart in the Y direction. The first protrusion 13 and the second protrusion 14 are present in a range of height from the upper end to the lower end of the grip portion 12G in the Y direction.

[0044] FIG. 2 shows the grip portion 2G, the first protrusion 13 and the second protrusion 14 as viewed from the X direction in FIG.

[0045] 2, the first protrusion 13 is a plate-like member. The thickness of the first protrusion 13 decreases with increasing distance from the grip portion 12G. The first protrusion 13 has a portion whose thickness is thinner than the diameter of the grip portion 12G.

[0046] The first protrusion 13 has a vertical protrusion 13A, an upper protrusion 13B, and a lower protrusion 13C. The vertical protrusion 13A, the upper protrusion 13B, and the lower protrusion 13C are integral with each other.

[0047] The vertical protrusion 13A is parallel to the Y direction. The vertical protrusion 13A has a vertically elongated shape that is long in the Y direction. The vertical protrusion 13A is spaced apart from the grip portion 12G. The thickness of the vertical protrusion 13A is thinner than the diameter of the grip portion 12G. The vertical protrusion 13A is shorter than the grip portion 12G in the Y direction.

[0048] The upper protrusion 13B and the lower protrusion 13C are parallel to a direction perpendicular to the Y direction. The upper protrusion 13B and the lower protrusion 13C are spaced apart in the Y direction. The upper protrusion 13B is positioned above the lower protrusion 13C. A space between the upper protrusion 13B and the lower protrusion 13C penetrates the first protrusion 13 in the thickness direction.

[0049] The upper protrusion 13B is between the grip portion 12G and the upper end of the vertical protrusion 13A. The lower protrusion 13C is between the grip portion 12G and the lower end of the vertical protrusion 13A. The upper protrusion 13B and the lower protrusion 13C are connected to the grip portion 12G.

[0050] The length of the vertical protrusion 13A in the Y direction is longer than the length of the upper protrusion 13B in the direction perpendicular to the Y direction. The length of the vertical protrusion 13A in the Y direction is longer than the length of the lower protrusion 13C in the direction perpendicular to the Y direction. The first protrusion 13 as a whole has a vertically elongated shape that is long in the Y direction.

[0051] The portion surrounded by the gripping portion 12G and the first protruding body 13 penetrates the first protruding body 13 in the thickness direction. The portion surrounded by the gripping portion 12G and the first protruding body 13 is referred to as the "through hole 13H". The "through hole 13H" has a vertically elongated shape that is long in the Y direction. When the sliding door 1 is in the closed state shown in FIG. 1, the through hole 13H penetrates in the X direction. In other words, when the sliding door 1 is in the closed state, the through hole 13H of the first protruding body 13 penetrates in the sliding direction of the sliding door 1 shown in FIG. 1.

[0052] Fig. 3 shows a top view of a part of the sliding door structure 100. Fig. 3 shows the handle 12 and its surroundings. Fig. 3 shows the sliding door 1 in a closed state.

[0053] As shown in Fig. 3, when the sliding door 1 is in a closed state, the first protrusion 13 protrudes in a direction opposite to the direction from the gripping portion 12G toward the sliding door main body 11. "The first protrusion 13 protrudes in a direction opposite to the direction from the gripping portion 12G toward the sliding door main body 11" means that, when the sliding door structure 100 is viewed from above, a line L1 is defined as passing through the gripping portion 12G and parallel to the sliding door main body 11, and the first protrusion 13 is present in an area R1 on the opposite side of L1 from the sliding door main body 11. For example, as shown in Fig. 3, when the sliding door structure 100 is viewed from above, L1 is a line passing through the center of the gripping portion 12G and parallel to the sliding door main body 11.

[0054] Furthermore, when the sliding door 1 is in a closed state, the first protrusion 13 faces in a direction perpendicular to the direction in which the sliding door 1 slides at the connection position with the grip portion 12G. The "direction perpendicular to the direction in which the sliding door 1 slides" is the Z direction shown in Fig. 3. "The first protrusion 13 faces in a direction perpendicular to the direction in which the sliding door 1 slides at the connection position with the grip portion 12G" means that the first protrusion 13 has a portion parallel to the Z direction at the connection position with the grip portion 12G or at or near the connection position with the grip portion 12G.

[0055] When the sliding door 1 is in a closed state, the first protrusion 13 is inclined in the X direction so as to approach one end of the sliding door main body 11 as it moves away from the connection position with the grip portion 12G. Here, "one end of the sliding door main body 11" refers to one end of the sliding door main body 11 in the width direction that moves away from the wall portion 110 when the sliding door 1 is opened.

[0056] The first protruding body 13 has been described above. The second protruding body 14 shown in Fig. 2 has a similar configuration to the first protruding body 13. Also, one side of the sliding door main body 11 has been described above. The other side of the sliding door main body 11 may have the same configuration as the one side of the sliding door main body 11, or may have a different configuration. Fig. 3 shows a handle on the other side of the sliding door main body 11.

[0057] The method of connecting the first protrusion 13 and the second protrusion 14 to the gripping portion 12G is not particularly limited. For example, the first protrusion 13 and the second protrusion 14 may be connected to the gripping portion 12G using a screw or the like. In this case, the first protrusion 13 and the second protrusion 14 may be detachably connected to the gripping portion 12G. Also, the first protrusion 13 and the second protrusion 14 may be connected to the gripping portion 12G by welding. The first protrusion 13 and the second protrusion 14 may be integrally molded with the gripping portion 12G.

[0058] (holding means) The sliding door structure 100 has a retaining means 2. When the sliding door 1 is closed as shown in Fig. 1, the retaining means 2 retains the sliding door 1 in the closed state. Fig. 3 shows an example of the retaining means 2 in which a so-called magnetic catch is used.

[0059] As shown in FIG. 3, the sliding door main body 11 has a metal part 11M at one end in the X direction. The "one end in the X direction" here refers to the one end of the sliding door main body 11 that is closer to the handle 12 in the X direction. The "one end in the X direction" here also refers to the one end, of both ends in the X direction of the sliding door main body 11, that moves away from or closer to the wall part 110 as the sliding door 1 is opened or closed. The metal part 11M includes metal. The metal part 11M may be metal covered with resin.

[0060] A magnet section 130 is attached to a portion of the wall section 110 facing the metal section 11M in the X direction. The magnet section 130 has a magnet.

[0061] When the sliding door body 11 is closed, the metal portion 11M of the sliding door body 11 is attracted to the magnet portion 130, thereby maintaining the sliding door body 11 in a closed state.

[0062] In the above, the holding means 2 has the metal part 11M and the magnet part 130. However, the holding means that holds the sliding door body 11 in a closed state when the sliding door body 11 is closed is not limited to the above configuration and can be changed.

[0063] (biasing mechanism) The sliding door structure 100 has a biasing mechanism 3. The biasing mechanism 3 is a mechanism that biases the sliding door 1 in a direction in which the sliding door 1 opens when a user applies force to the handle 12, the first protrusion 13, or the second protrusion 14 in order to open the sliding door 1 while the sliding door 1 is closed as shown in Fig. 1. Figs. 3 to 5 show an example of the biasing mechanism 3.

[0064] 3, the biasing mechanism 3 has a first link portion 31, a second link portion 32, a link connecting portion 33, and a link support portion 34. The first link portion 31, the second link portion 32, the link connecting portion 33, and the link support portion 34 are the internal structure of the first attachment portion 12A shown in FIG.

[0065] The first link portion 31 is connected to the grip portion 12G. The second link portion 32 is parallel to the X direction. The link connection portion 33 connects the first link portion 31 and the second link portion 32. The link support portion 34 is connected to the sliding door main body 11. The link support portion 34 supports the first link portion 31.

[0066] The first link portion 31 is rotatable about a support position supported by the link support portion 34. Since the first link portion 31 is supported by the link support portion 34, as the first link portion 31 rotates, the second link portion 32 moves in the X direction while remaining substantially parallel to the X direction.

[0067] When the sliding door 1 is in a closed state, the tip of the second link portion 32 is in contact with the receiving portion 140. The receiving portion 140 is attached to a portion of the wall portion 110 facing the second link portion 32 in the X direction.

[0068] In order to open the sliding door 1 while the sliding door 1 is closed, the user applies force to the grip portion 12G, the first protruding body 13, or the second protruding body 14 shown in FIG. 1 in a direction in which the sliding door 1 opens. This causes the grip portion 12G to rotate from the state shown in FIG. 3. As shown in FIG. 4, the first link portion 31 rotates with the rotation of the grip portion 12G, and the second link portion 32 presses the receiving portion 140. The second link portion 32 receives a reaction force from the receiving portion 140. This reaction force is transmitted to the sliding door main body 11 via the second link portion 32, the first link portion 31, and the link support portion 34, and the sliding door 1 is biased in a direction in which the sliding door 1 opens. The sliding door 1 opens as shown in FIG. 4 and FIG. 5 in order.

[0069] The above describes the structure of the upper part of the sliding door structure 100 and the internal structure of the first mounting portion 12A shown in Fig. 1. The structure of the lower part of the sliding door structure 100 and the internal structure of the second mounting portion 12B shown in Fig. 1 are also configured in a similar manner to the above.

[0070] In the above, the biasing mechanism 3 has the first link portion 31, the second link portion 32, the link connecting portion 33, the link support portion 34, and the receiving portion 140. However, the biasing mechanism 3 is not limited to the above configuration and can be modified.

[0071] (Moving mechanism 4) The sliding door structure 100 has a moving mechanism 4. The moving mechanism 4 is a mechanism that moves the sliding door 1 in a direction in which the sliding door 1 closes when the sliding door 1 is open. An example of the moving mechanism 4 is shown in Figures 6(a) to 6(c).

[0072] As shown in FIG. 6(a), the moving mechanism 4 includes a wire 41, a wire winding device 42, a rail 43, and the like.

[0073] The wire 41 is pulled toward the wire winding device 42. A force directed toward the wire winding device 42 is applied to the wire 41 by the wire winding device 42.

[0074] The wire winding device 42 is disposed at a position close to one end of the sliding door main body 11 in the X direction when the sliding door 1 is closed. Here, "one end of the sliding door main body 11" refers to one end of the sliding door main body 11 that is separated from the wall portion 110 when the sliding door 1 is opened, among both ends in the width direction of the sliding door main body 11. Fig. 6(a) shows the sliding door 1 in a closed state. The wire winding device 42 is disposed at a height higher than the sliding door 1 in the Y direction.

[0075] The rail 43 is disposed above the sliding door 1. The rail 43 is horizontal.

[0076] The sliding door 1 further includes a wire attachment portion 15, a first hanging portion 16, and a second hanging portion 17.

[0077] The wire attachment portion 15 protrudes upward from the upper end of the sliding door main body 11. A wire 41 is attached to the wire attachment portion 15. The wire attachment portion 15 is attached to a position close to one end of the sliding door main body 11 in the X direction. Here, "one end of the sliding door main body 11" refers to one end of the sliding door main body 11 that is separated from the wall portion 110 when the sliding door 1 is opened, among both ends in the width direction of the sliding door main body 11.

[0078] The first hanging portion 16 and the second hanging portion 17 protrude upward from the upper end of the sliding door main body 11. The first hanging portion 16 and the second hanging portion 17 are separated in the X direction. A first roller 18 is attached to the tip of the first hanging portion 16. A second roller 19 is attached to the tip of the second hanging portion 17. The first roller 18 and the second roller 19 are disposed on a rail 43. The first roller 18 and the second roller 19 run on the rail 43.

[0079] When the sliding door 1 is in a closed state as shown in FIG. 6(a), the user opens the sliding door 1. Accordingly, the wire 41 is pulled out as shown in FIG. 6(b). When the sliding door 1 is in an open state as shown in FIG. 6(b), the wire 41 is pulled toward the wire winding device 42. When the user moves his / her body away from the sliding door main body 11, the handle 12, the first protruding body 13, and the second protruding body 14, the wire 41 is wound up by the wire winding device 42 as shown in FIG. 6(c), and the sliding door 1 moves in the closing direction.

[0080] The above configuration provides the following advantages.

[0081] As shown in FIG. 1, the first protrusion 13 and the second protrusion 14 are connected to the handle 12. As shown in FIG. 7, the first protrusion 13 is located at a height between the vicinity of the user's shoulder and the vicinity of the user's elbow. The second protrusion 14 is located at a height near the user's knee. For example, as shown in FIG. 7, the user can open the sliding door 1 without touching the grip portion 12G by pushing the first protrusion 13 in the direction in which the sliding door 1 opens with the shoulder. Also, as shown in FIG. 8, the user can open the sliding door 1 without touching the grip portion 12G by pushing the first protrusion 13 in the direction in which the sliding door 1 opens with the elbow. Also, as shown in FIG. 9, the user can open the sliding door 1 without touching the grip portion 12G by pushing the second protrusion 14 in the direction in which the sliding door 1 opens with the knee.

[0082] In addition, it is more difficult for parts of the body such as elbows, shoulders, or knees to get closer to the sliding door 1 than the hands. According to the above configuration, the first protrusion 13 and the second protrusion 14 are present in an area R1 on the opposite side of the sliding door main body 11 with respect to a line L1 passing through the grip portion 12G, as shown in FIG. 3. In other words, the first protrusion 13 and the second protrusion 14 are located closer to the user than the grip portion 12G. Therefore, the user can push the first protrusion 13 or the second protrusion 14 without getting too close to the sliding door 1. For example, the user can push the first protrusion 13 or the second protrusion 14 at a position where the user can grip the grip portion 12G with his or her hand.

[0083] Moreover, the above-mentioned sliding door structure 100 includes the holding means 2 and the biasing mechanism 3 shown in Fig. 3, and the moving mechanism 4 shown in Fig. 6(a) to (c). This provides the following effects. When the sliding door 1 is closed, the sliding door 1 is held in the closed state by the holding means 2 (metal part 11M, magnet part 130) shown in Fig. 3. This allows the sliding door 1 to be maintained in the closed state even if the railway car shakes while it is running. When the sliding door 1 is in a closed state, if a user applies force to the grip portion 12G, the first protrusion 13, or the second protrusion 14 in a direction in which the sliding door 1 opens in order to open the sliding door 1, the biasing mechanism 3 biases the sliding door 1 in a direction in which the sliding door 1 opens. Although there is a holding means 2, the user does not need to apply a large force to the grip portion 12G, the first protrusion 13, or the second protrusion 14 because the biasing mechanism 3 opens the sliding door 1. When the sliding door 1 is in an open state, the moving mechanism 4 moves the sliding door 1 in a direction in which the sliding door 1 closes, as shown in Figs. 6(a) to (c). The sliding door 1 closes without the user touching or applying force to the grip portion 12G, the first protrusion 13, or the second protrusion 14.

[0084] From the above, it is possible to provide a structure that allows a user to open and close the sliding door 1 without touching the grip portion 2G of the sliding door 1 with his / her hand. Furthermore, when a user wishes to use the grip portion 2G, the user can use the grip portion 12G from between the first protruding body 13 and the second protruding body 14 shown in FIG. 1. Furthermore, the user can use the grip portion 12G from the through hole 13H of the first protruding body 13. Furthermore, the user can use the grip portion 12G from the through hole of the second protruding body 14.

[0085] Moreover, the handle 12 shown in FIG. 1 is long in the vertical direction. The handle 12 extends from a position higher than C1 to a height closer to the lower end 11L of the sliding door main body 11 than C1 in the vertical direction. By connecting the first protrusion 13 to the upper part of such a handle 12, the first protrusion 13 is disposed at a height near the shoulder or elbow of the user. Furthermore, by connecting the second protrusion 14 to the lower part of the handle 12, the second protrusion 14 is disposed at a height near the knee of the user. This provides a structure that allows the user to open and close the sliding door 1 without touching the gripping portion 12G of the sliding door 1 with their hands.

[0086] 1, the presence of both the first protrusion 13 and the second protrusion 14 provides the user with a wider choice of whether to use the first protrusion 13 or the second protrusion 14 when opening the sliding door 1. The user also has a wider choice of which part of the body to use, between the elbow, the shoulder, and the knee, when opening the sliding door 1.

[0087] As shown in FIG. 2, the first protrusion 13 has a vertical protrusion 13A and a through hole 13H that are long in the vertical direction. Therefore, the range in which the first protrusion 13 is arranged is long in the vertical direction. This allows the user to have a wider choice of whether to use his / her elbow or shoulder when pushing the first protrusion 13. Furthermore, even if the user has a different age and / or body type, the first protrusion 13 is located near the user's elbow, shoulder, etc. Therefore, the range of users who can use the first protrusion 13 is wider.

[0088] Like the first protrusion 13, the second protrusion 14 also has a long portion in the vertical direction. When a user presses the second protrusion 14, the user has more options regarding which part, such as the knee, to use for the second protrusion 14. In addition, even if the user's age and / or body type are different, the second protrusion 14 is located near the user's knee or the like. In addition, the second protrusion 14 may be located near the shoulder or elbow of a child or the like. This increases the range of users who can use the second protrusion 14.

[0089] 2, the first protruding body 13 has a through hole 13H. A user can easily press the first protruding body 13 by pressing the first protruding body 13 while positioning a shoulder or elbow in the through hole 13H.

[0090] 2, the second protrusion 14 has a through hole. The user can easily press the second protrusion 14 by pressing the second protrusion 14 while placing a knee or the like in the through hole.

[0091] As shown in FIG. 2, the grip portion 12G is rod-shaped. A user can easily grasp the grip portion 12G. On the other hand, the first protruding body 13 is plate-shaped. The first protruding body 13 has a surface against which the user can rest their shoulder, elbow, etc. This makes it easy for the user to press the first protruding body 13. The second protruding body 14 is plate-shaped. Therefore, the second protruding body 14 has a surface against which the user can rest their knee, etc. This makes it easy for the user to press the second protruding body 14. As described above, the user can easily use the grip portion 12G, the first protrusion 13, and the second protrusion 14.

[0092] 3, the first protrusion 13 has a portion whose thickness is thinner than the diameter of the grip portion 12G, which makes it easier for the user to press the first protrusion 13 with his / her shoulder, elbow, or the like. Similarly to the first protrusion 13, the second protrusion 14 also has a portion whose thickness is thinner than the diameter of the grip portion 12G. This makes it easier for the user to press the second protrusion 14 with his / her knee or the like.

[0093] 3, the first protrusion 13 has a portion facing the Z direction at the connection position with the grip portion 12G. Furthermore, the first protrusion 13 is inclined so as to approach one end of the width direction of the sliding door main body 11 as it moves away from the connection position with the grip portion 12G. This shape makes it easy for the user to know the direction in which to push the first protrusion 13. Also, when opening the sliding door 1, the user can easily push the first protrusion 13 with their shoulder, elbow, etc. 3, the second protrusion 14 has a similar shape to the first protrusion 13. Therefore, it is easy for the user to know the direction in which to push the second protrusion 14. When opening the sliding door 1, the user can easily push the second protrusion 14 with his / her shoulder, elbow, etc.

[0094] [Variation 1] A railway vehicle sliding door structure 200 shown in Fig. 10(a) is a modified example of the railway vehicle sliding door structure 100 according to the first embodiment. The sliding door structure 200 differs from the first embodiment in that the sliding door structure 200 includes a first protrusion 13 and does not include the second protrusion 14 shown in Fig. 1. In Fig. 10(a), the same reference numerals are used to designate the same components as those in the first embodiment described above.

[0095] 10(a), the sliding door structure 200 can provide the same effect as that provided by the first protrusion 13 of the sliding door structure 100 of the first embodiment. Furthermore, when a user wishes to use the grip portion 12G of the handle 12, the user can effectively use the lower part of the grip portion 12G.

[0096] [Modification 2] A railway vehicle sliding door structure 300 shown in Fig. 10(b) is a modified example of the railway vehicle sliding door structure 100 according to the first embodiment. The sliding door structure 300 differs from the first embodiment in that the sliding door structure 300 includes a second protrusion 14 and does not include the first protrusion 13 shown in Fig. 1. In Fig. 10(b), the same reference numerals are used to designate the same components as those in the first embodiment described above.

[0097] 10(b), the sliding door structure 300 can provide the same effect as that provided by the second protrusion 14 of the sliding door structure 100 of the first embodiment. Furthermore, when a user wishes to use the grip portion 12G of the handle 12, the user can effectively use the upper part of the grip portion 12G.

[0098] [Modification 3] A railway vehicle sliding door structure 400 shown in Fig. 11(a) is a modified example of the railway vehicle sliding door structure 100 according to the first embodiment. The sliding door structure 400 differs from the first embodiment in the configuration of the protrusion 413. In the following, the same reference numerals are used for the same configurations as those in the above-mentioned first embodiment, and the description thereof will be omitted as appropriate.

[0099] 11(a) shows the sliding door 401 in an open state. The sliding door 401 has a protrusion 413. The protrusion 413 has a portion that is located at a position higher than the height C1 of the center of the sliding door main body 11 in the Y direction, and a portion that is located at a height closer to the lower end 11L of the sliding door main body 11 than C1.

[0100] The protrusion 413 is present in a range of height from the upper end to the lower end of the grip portion 12G in the Y direction. The protrusion 413 is slightly shorter than the handle 12 in the Y direction. The protrusion 413 is connected to the upper end and the lower end of the grip portion 12G.

[0101] The protrusion 413 is plate-shaped. The thickness of the protrusion 413 decreases with increasing distance from the grip portion 12G. The protrusion 413 has a portion whose thickness is thinner than the diameter of the grip portion 12G.

[0102] The protrusion 413 has a vertical protrusion 413A, an upper protrusion 413B, and a lower protrusion 413C. The vertical protrusion 413A, the upper protrusion 413B, and the lower protrusion 413C are integral with each other.

[0103] The vertical protrusion 413A is parallel to the Y direction. The vertical protrusion 413A has a vertically elongated shape that is long in the Y direction. The vertical protrusion 413A is spaced apart from the grip portion 12G. The thickness of the vertical protrusion 413A is thinner than the diameter of the grip portion 12G. The vertical protrusion 413A is slightly shorter than the grip portion 12G in the Y direction.

[0104] The upper protrusion 413B and the lower protrusion 413C are parallel to a direction perpendicular to the Y direction. The upper protrusion 413B and the lower protrusion 413C are spaced apart in the Y direction. The upper protrusion 413B is positioned higher than the lower protrusion 413C. The upper protrusion 413B and the lower protrusion 413C penetrate through the protrusion 413 in the thickness direction.

[0105] The upper protrusion 413B is between the upper end of the grip portion 12G and the upper end of the vertical protrusion 13A. The lower protrusion 413C is between the lower end of the grip portion 12G and the lower end of the vertical protrusion 13A. The upper protrusion 413B is connected to the upper end of the grip portion 12G. The lower protrusion 413C is connected to the lower end of the grip portion 12G.

[0106] The length of the vertical protrusion 413A in the Y direction is longer than the length of the upper protrusion 413B in the direction perpendicular to the Y direction. The length of the vertical protrusion 413A in the Y direction is longer than the length of the lower protrusion 413C in the direction perpendicular to the Y direction. The protrusion 413 as a whole has an elongated shape that is long in the Y direction.

[0107] The portion surrounded by grip portion 12G and protrusion 413 penetrates protrusion 413 in the thickness direction. The portion surrounded by grip portion 12G and protrusion 413 is referred to as "through hole 413H." Through hole 413H has a vertically elongated shape that is long in the Y direction. Through hole 413H is formed from the height of the upper end of grip portion 12G to the height of the lower end in the Y direction. When sliding door 401 is in a closed state, through hole 413H penetrates in the direction in which sliding door 401 slides.

[0108] 3, the protrusion 413 protrudes in a direction opposite to the direction from the gripping portion 12G toward the sliding door main body 11. In other words, the protrusion 413 is present in an area R1 on the opposite side to the sliding door main body 11 with respect to L1 shown in FIG.

[0109] 3, when the sliding door structure 400 is viewed from above, the protrusion 413 faces a direction perpendicular to the direction from the gripping portion 12G toward the sliding door main body 11 at the connecting position with the gripping portion 12G. When the sliding door 401 is closed, the protrusion 413 is inclined in the X direction so as to approach one end of the sliding door main body 11 as it moves away from the connecting position with the gripping portion 12G.

[0110] Other than the above, the protrusion 413 has the same configuration as the first protrusion 13 of the first embodiment.

[0111] The method of connecting the protrusion 413 to the gripping portion 12G is not particularly limited. For example, the protrusion 413 may be connected to the gripping portion 12G in a manner similar to the example of the method of connecting the first protrusion 13 and the second protrusion 14 to the gripping portion 12G described in the first embodiment.

[0112] The above configuration provides the following effects. Since the protrusion 413 is long in the Y direction, it is located at the height of the elbow, shoulder, and knee of the user. The user can open the sliding door 401 without touching the grip portion 12G by pushing the protrusion 413 with the elbow, shoulder, or knee in the direction in which the sliding door 401 opens. This provides the same effect as the sliding door structure 100 of the first embodiment.

[0113] 11(a), the protrusion 413 is continuous in the Y direction from the height of the upper end to the height of the lower end of the grip portion 12G. This allows the protrusion 413 to be at the height of the elbows, shoulders, and knees of the user, regardless of the user's body type and age. This increases the range of users who can use the protrusion 413. It also increases the options for which parts of the elbows, shoulders, and knees the user will use. Furthermore, the through-hole 413H is formed in the Y direction from near the upper end to near the lower end of the grip portion 12G, so that the same effect as above can be obtained.

[0114] Although the length of the protrusion 413 in the Y direction is long, the user can use the grip portion 12G through the through hole 413H.

[0115] In addition, as a modified example of the sliding door structure 400, a protrusion parallel to the X direction and / or a protrusion inclined with respect to the X direction may be further arranged between the upper protrusion 413B and the lower protrusion 413C. One protrusion may be arranged between the upper protrusion 413B and the lower protrusion 413C, or two or more protrusions may be arranged apart in the Y direction. The protrusion is connected to the grip 12G and the vertical protrusion 413A. The long vertical protrusion 413A is stably held by the grip 12G by the protrusion. In addition, the user can press the protrusion between the upper protrusion 413B and the lower protrusion 413C with the shoulder, elbow, knee, etc.

[0116] [Modification 4] A railway vehicle sliding door structure 500 shown in Fig. 11(b) is a modified example of the railway vehicle sliding door structure 100 according to the first embodiment. The sliding door structure 500 differs from the first embodiment in the configurations of a first protrusion 513 and a second protrusion 514. In the following, the same reference numerals are used for the same configurations as those in the above-mentioned first embodiment, and the description thereof will be omitted as appropriate.

[0117] 11(b) shows the sliding door 501 in an open state. The sliding door 501 has a first protrusion 513 and a second protrusion 514. The first protrusion 513 is connected to an upper part of the gripping portion 12G. The second protrusion 514 is connected to a lower part of the gripping portion 512G.

[0118] The first protrusion 513 and the second protrusion 514 are spaced apart in the Y direction. The first protrusion 513 and the second protrusion 514 are present in a range of height from the upper end to the lower end of the grip portion 12G in the Y direction.

[0119] The first protrusion 513 has a portion that is located in a position higher than the height C1 of the center of the sliding door main body 11 in the Y direction. The second protrusion 514 has a portion that is located at a height closer to the lower end 11L of the sliding door main body 11 than C1 in the Y direction.

[0120] The first protrusion 513 is a plate-shaped member. The thickness of the first protrusion 513 decreases as it moves away from the grip portion 12G. The first protrusion 513 has a portion whose thickness is thinner than the diameter of the grip portion 12G.

[0121] The first protruding body 513 has a vertically elongated shape that is long in the Y direction. A groove 513F is formed in the first protruding body 513. The groove 513F is long in the Y direction. The groove 513F is recessed in the thickness direction of the first protruding body 513. The groove 513F is surrounded by a peripheral portion 513E in the Y direction and in a direction perpendicular to the Y direction. When the sliding door 501 is in a closed state, the groove 513F is recessed in the direction in which the sliding door 501 slides.

[0122] 3, when the sliding door structure 500 is viewed from above, the first protrusion 513 faces a direction perpendicular to the direction from the gripping portion 12G toward the sliding door main body 11 at the connecting position with the gripping portion 12G. When the sliding door 501 is closed, the first protrusion 513 is inclined in the X direction so as to come closer to one end of the sliding door main body 11 as it moves away from the connecting position with the gripping portion 12G.

[0123] The second protruding body 514 has a configuration similar to that of the first protruding body 513. The second protruding body 514 also has a groove 514F formed therein.

[0124] There is no particular limitation on the method of connecting the first protrusion 513 and the second protrusion 514 to the gripping portion 12G. For example, the first protrusion 513 and the second protrusion 514 may be connected to the gripping portion 12G in a manner similar to the example of the method of connecting the first protrusion 13 and the second protrusion 14 to the gripping portion 12G described in the first embodiment.

[0125] The above configuration provides the following effects. The first protrusion 513 is located at a height near the elbow or shoulder of the user. The second protrusion 514 is located at a height near the knee of the user. For example, the user can open the sliding door 1 without touching the grip portion 12G by pushing the first protrusion 513 with the shoulder or elbow in the direction in which the sliding door 1 opens. Also, the user can open the sliding door 1 without touching the grip portion 12G by pushing the second protrusion 514 with the knee in the direction in which the sliding door 1 opens. With the above configuration, the same effects as those of the sliding door structure 100 of the first embodiment can be obtained.

[0126] In addition, the user can easily push first protrusion 513 by positioning his / her shoulder or elbow in groove 513F of first protrusion 513 and pushing first protrusion 513. The user can easily push the second protrusion 514 by placing the knee in the groove 514F of the second protrusion 514 and pushing the second protrusion 514.

[0127] In addition, the user can also use the grip portion 2G from between the first protrusion 513 and the second protrusion 514.

[0128] Second Embodiment Next, a railroad car sliding door structure 600 according to a second embodiment will be described below with reference to Figs. 12 and 13. The second embodiment differs from the first embodiment in that it has a handle 612, a first protruding body 613, and a second protruding body 614. The same components as those in the first embodiment are designated by the same reference numerals, and descriptions thereof will be omitted as appropriate. Figs. 12 and 13 show the sliding door structure 600 with the sliding door 601 closed.

[0129] The sliding door structure 600 includes a sliding door 601. The sliding door 601 includes a sliding door main body 11, a handle 612, a first protruding body 613, and a second protruding body 614.

[0130] (Handle) The handle 612 is attached to a position close to one end in the width direction of the sliding door main body 11. The handle 612 has a gripping portion 612G, a first attachment portion 12A, and a second attachment portion 12B.

[0131] The grip portion 612G is in the shape of a cylindrical rod. The grip portion 612G has a thickness that allows the user to hold it in his / her hand. The grip portion 612G is parallel to the Y direction. The grip portion 612G has a thickness that allows the user to hold it in his / her hand.

[0132] The gripping portion 612G exists in the Y direction from a position higher than the height C1 of the center of the sliding door main body 11 to a height lower than C1. The upper end of the gripping portion 612G is located at a height closer to C1 than the upper end 11U of the sliding door main body 11. The lower end of the gripping portion 612G is located at a height closer to C1 than the lower end 11L of the sliding door main body 11.

[0133] An upper end of the gripping portion 12G is attached to the sliding door main body 11 by a first attachment portion 12A. A lower end of the gripping portion 12G is attached to the sliding door main body 11 by a second attachment portion 12B.

[0134] (1st protruding body, 2nd protruding body) A first protrusion 613 is connected to the upper part of the gripping part 12G. The upper end of the first protrusion 613 is located at a position higher than the upper end of the gripping part 612G in the Y direction. The first protrusion 613 has a portion located at a position higher than the upper end of the gripping part 612G in the Y direction, and a portion located within the range of height from the upper end to the lower end of the gripping part 612G. The first protrusion 613 has a portion located at a position higher than C1 in the Y direction.

[0135] The second protrusion 614 is connected to the lower part of the gripping part 12G. The lower end of the second protrusion 614 is located at a position lower than the lower end of the gripping part 612G in the Y direction. The lower end of the second protrusion 614 is closer to the height of the lower end 11L of the sliding door main body 11 than the height of the lower end of the gripping part 612G in the Y direction. The second protrusion 614 has a part located in the range of height from the upper end to the lower end of the gripping part 612G in the Y direction, and a part located at a position lower than the lower end of the gripping part 612G. The second protrusion 614 is located at a height lower than C1 in the Y direction. The second protrusion 614 has a part located closer to C1 than the height of the lower end 11L of the sliding door main body 11 in the Y direction, and a part located closer to the height of the lower end 11L of the sliding door main body 11 than C1.

[0136] The first protrusion 613 and the second protrusion 614 are spaced apart in the Y direction.

[0137] The first protrusion 613 is a plate-like member. The thickness of the first protrusion 613 decreases as it moves away from the gripping portion 612G. The first protrusion 613 has a portion whose thickness is thinner than the diameter of the gripping portion 612G.

[0138] The first protrusion 613 has a vertical protrusion 613A and a horizontal protrusion 613B. The vertical protrusion 613A and the horizontal protrusion 613B are integral with each other.

[0139] The vertical protrusion 613A is parallel to the Y direction. The vertical protrusion 613A has a vertically elongated shape that is long in the Y direction. The vertical protrusion 613A is spaced apart from the gripping portion 612G. The thickness of the vertical protrusion 613A is thinner than the thickness of the lateral protrusion 613B. The vertical protrusion 613A has a portion that is thinner than the diameter of the gripping portion 612G.

[0140] The lateral protrusion 613B is parallel to a direction perpendicular to the Y direction. The lateral protrusion 613B is between the upper part of the gripping portion 612G and the lower end of the vertical protrusion 613A. The lateral protrusion 613B is connected to the upper part of the gripping portion 612G.

[0141] The length of the vertical protrusion 613A in the Y direction is longer than the length of the horizontal protrusion 613B in the direction perpendicular to the Y direction. The first protrusion 613 as a whole has an elongated shape that is long in the Y direction.

[0142] When the sliding door 1 is in a closed state, as shown in FIG. 12, the gripping portion 612G and the vertical protruding portion 613A are penetrated in the direction in which the sliding door 1 slides.

[0143] Fig. 13 shows a top view of a part of the sliding door structure 600. Fig. 13 shows the handle 612 and its surroundings. Fig. 13 shows the sliding door 601 in a closed state.

[0144] 13, when the sliding door 601 is in a closed state, the first protrusion 613 protrudes in a direction opposite to the direction from the gripping portion 612G toward the sliding door main body 11. In other words, the first protrusion 613 is present in an area R1 on the opposite side to the sliding door main body 11 with respect to a line L1 that passes through the gripping portion 612G and is parallel to the sliding door main body 11.

[0145] Furthermore, when the sliding door 601 is in a closed state, the first protrusion 613 faces a direction perpendicular to the sliding direction of the sliding door 601 at the connecting position with the gripping portion 612G. In other words, the lateral protrusion 613B of the first protrusion 613 has a portion parallel to the Z direction at the connecting position with the gripping portion 612G.

[0146] When the sliding door 1 is in a closed state, the first protrusion 13 is inclined in the X direction so as to approach one end of the sliding door main body 11 as it moves away from the connection position with the grip portion 12G. Here, "one end of the sliding door main body 11" refers to one end of the sliding door main body 11 that is separated from the wall portion 110 when the sliding door 601 is opened, among both ends in the width direction of the sliding door main body 11.

[0147] The first protrusion 613 has been described above. The second protrusion 614 shown in FIG. 12 has a configuration similar to that of the first protrusion 613. The second protrusion 614 is obtained by turning the first protrusion 613 upside down. The "vertical protrusion 614A" of the "second protrusion 614" shown in FIG. 12 corresponds to the "vertical protrusion 613A" of the "first protrusion 613". The "lateral protrusion 614B" of the "second protrusion 614" shown in FIG. 12 corresponds to the "lateral protrusion 613B" of the "first protrusion 613".

[0148] The lateral protrusion 614B is located between the lower portion of the grip portion 612G and the upper end of the vertical protrusion 614A. The lateral protrusion 614B is connected to the lower portion of the grip portion 612G. Other than the above, the configuration of the second protrusion 614 is similar to the configuration of the first protrusion 613.

[0149] Moreover, the above describes one side of the sliding door body 11. The other side of the sliding door body 11 may have the same configuration as the one side of the sliding door body 11, or may have a different configuration. Fig. 13 shows a handle on the other side of the sliding door body 11.

[0150] There is no particular limitation on the method for connecting the first protrusion 613 and the second protrusion 614 to the gripping portion 612G. For example, the first protrusion 513 and the second protrusion 514 may be connected to the gripping portion 12G in a manner similar to the example of the method for connecting the first protrusion 13 and the second protrusion 14 to the gripping portion 12G described in the first embodiment.

[0151] The above configuration provides the following effects. As shown in Fig. 12, the vertical protrusion 613A of the first protrusion 613 is located at a height near the elbow or shoulder of the user. The second protrusion 614 is located at a height near the knee of the user. For example, when opening the sliding door 601, the user can open the sliding door 601 without touching the grip portion 612G by pushing the vertical protrusion 613A with the shoulder or elbow in the direction in which the sliding door 601 opens. When opening the sliding door 601, the user can open the sliding door 601 without touching the grip portion 612G by pushing the vertical protrusion 614A with the knee in the direction in which the sliding door 601 opens. With the above configuration, the same effects as those of the sliding door structure 100 of the first embodiment can be obtained.

[0152] Also, the user can use the grip portion 612G from between the first protrusion 613 and the second protrusion 614. Furthermore, since the vertical protrusion 613A of the first protrusion 613 is separated from the grip portion 612G, the user can use the grip portion 612G from between the vertical protrusion 613A and the grip portion 612G. Furthermore, since the vertical protrusion 614A of the second protrusion 614 is separated from the grip portion 612G, the user can use the grip portion 612G from between the second protrusion 614 and the grip portion 612G. From the above, the user can also utilize the grip portion 612G.

[0153] Moreover, the handle 612 is shorter in the vertical direction than the handle 12 of the first embodiment. Such a handle 612 is often used in existing railroad cars. By connecting the first protruding body 613 and the second protruding body 614 configured as described above to the handle 612, it is possible to provide a structure that allows the user to open and close the sliding door 601 without touching the gripping portion 612G of the sliding door 601 while adopting an existing structure.

[0154] [Modification 5] A railway vehicle sliding door structure 700 shown in Fig. 14(a) is a modified example of the railway vehicle sliding door structure 600 according to the second embodiment. The sliding door structure 700 differs from the second embodiment in that the sliding door structure 700 includes a first protrusion 613 and does not include the second protrusion 614 shown in Fig. 12. In Fig. 14(a), the same reference numerals are used to designate the same components as those in the second embodiment described above.

[0155] 14(a), the sliding door structure 700 can provide the same effect as that provided by the first protrusion 613 of the sliding door structure 600 of the second embodiment. Furthermore, when a user wishes to use the grip portion 612G of the handle 612, the user can effectively use the lower part of the grip portion 612G.

[0156] [Modification 6] A railway vehicle sliding door structure 800 shown in Fig. 14(b) is a modified example of the railway vehicle sliding door structure 600 according to the second embodiment. The sliding door structure 800 differs from the second embodiment in that the sliding door structure 800 includes a second protrusion 614 and does not include the first protrusion 613 shown in Fig. 12. In Fig. 14(b), the same reference numerals are used to designate the same components as those in the first embodiment described above.

[0157] 14(b), the sliding door structure 800 can provide the same effect as that provided by the second protrusion 614 of the sliding door structure 600 of the second embodiment. Furthermore, when a user wishes to use the grip portion 612G of the handle 612, the user can effectively use the upper part of the grip portion 612G.

[0158] [Modification 7] A railway vehicle sliding door structure 900 shown in Fig. 15(a) is a modified example of the railway vehicle sliding door structure 600 according to the second embodiment. The sliding door structure 900 differs from the first embodiment in the configuration of the protrusion 913. In the following, the same reference numerals are used for the same configuration as the above-mentioned second embodiment, and the description thereof will be omitted as appropriate.

[0159] 15(a) shows the sliding door 901 in a closed state. The sliding door 901 has the sliding door main body 11, a handle 612, and a protrusion 913. The protrusion 913 is connected to the vicinity of the center of the handle 612 in the Y direction.

[0160] The protrusion 913 is a plate-like member. The thickness of the protrusion 913 decreases with increasing distance from the gripping portion 612G. The protrusion 913 has a portion whose thickness is thinner than the diameter of the gripping portion 612G.

[0161] The protrusion 913 has a vertical protrusion 913A and a horizontal protrusion 913B. The vertical protrusion 913A is parallel to the Y direction. The horizontal protrusion 913B is parallel to a direction perpendicular to the Y direction.

[0162] The length of the vertical protrusion 913A in the Y direction is longer than the length of the horizontal protrusion 913B in the direction perpendicular to the Y direction. The length of the vertical protrusion 913A in the Y direction is longer than the length of the gripping portion 612G in the Y direction. The length of the vertical protrusion 913A in the Y direction is approximately three times the length of the gripping portion 612G in the Y direction.

[0163] The vertical protrusion 913A is spaced apart from the gripping portion 612G. The lateral protrusion 913B is located between the vertical protrusion 913A and the gripping portion 612G. The lateral protrusion 913B is connected to the vicinity of the center of the gripping portion 612G in the Y direction and to the vicinity of the center of the vertical protrusion 913A in the Y direction.

[0164] The upper end of the vertical protrusion 913A is located at a position higher than the upper end of the gripping portion 612G in the Y direction. The lower end of the vertical protrusion 913A is located at a position lower than the lower end of the gripping portion 612G in the Y direction. The lower end of the vertical protrusion 913A is closer to the lower end 11L of the sliding door main body 11 than the lower end of the gripping portion 612G in the Y direction.

[0165] The vertical protrusion 913A has a portion located in a position higher than the height C1 of the center of the sliding door main body 11 in the Y direction, and a portion located in a position lower than C1. The vertical protrusion 913A has a portion located in a position higher than the upper end of the gripping portion 612G, a portion located in a range of heights from the upper end to the lower end of the gripping portion 612G, and a portion located in a position lower than the lower end of the gripping portion 612G in the Y direction.

[0166] When the sliding door 901 is in a closed state, when the sliding door structure 900 is viewed from above, the protrusion 913 protrudes in a direction opposite to the direction from the gripping portion 612G toward the sliding door main body 11, similar to the first protrusion 613 shown in Fig. 13. In other words, the protrusion 913 is present in an area R1 on the opposite side to the sliding door main body 11 with respect to a line L1 that passes through the gripping portion 612G and is parallel to the sliding door main body 11, similar to the first protrusion 613 shown in Fig. 13.

[0167] 13, the protrusion 913 faces in a direction perpendicular to the sliding direction of the sliding door 901 at the connecting position with the gripping portion 612G. In other words, the lateral protrusion 913B of the protrusion 913 has a portion parallel to the Z direction at the connecting position with the gripping portion 612G, similar to the first protrusion 613 shown in FIG.

[0168] 13, when the sliding door 901 is in a closed state, the protrusion 913 is inclined in the X direction so as to approach one end of the sliding door main body 11 as it moves away from the connection position with the gripping portion 612G. Here, "one end of the sliding door main body 11" refers to one end of the sliding door main body 11 that is separated from the wall portion 110 when the sliding door 901 is opened, among both ends of the sliding door main body 11 in the width direction.

[0169] The method of connecting the protrusion 913 to the gripping portion 612G is not particularly limited. For example, the protrusion 913 may be connected to the gripping portion 612G in a manner similar to the example of the method of connecting the first protrusion 13 and the second protrusion 14 to the gripping portion 12G described in the first embodiment.

[0170] The above configuration provides the following effects. The vertical protruding portion 913A of the protruding body 913 is long in the Y direction, and is therefore at the height of the elbow, shoulder, and knee of the user. The user can open the sliding door 901 without touching the gripping portion 612G by pushing the vertical protruding portion 913A, or the vertical protruding portion 913A and the horizontal protruding portion 913B, with their elbow, shoulder, or knee in the direction in which the sliding door 901 opens. This provides the same effect as the sliding door structure 600 of the second embodiment.

[0171] In addition, the vertical protruding portion 913A of the protruding body 913 is longer than the gripping portion 612G in the Y direction, and exists continuously from a height higher than the upper end of the gripping portion 612G to a height lower than the lower end of the gripping portion 612G and closer to the lower end 11L of the sliding door main body 11 than C1. As a result, the vertical protruding portion 913A exists at a height near the elbows, shoulders, and knees of the user, regardless of the body type and age of the user. Therefore, the range of users who can use the protruding body 913 is expanded. Also, the user has a wider choice of which part of the elbow, shoulder, or knee to use.

[0172] Furthermore, since the vertical protrusion 913A of the protrusion 913 is separated from the grip portion 612G, even if the vertical protrusion 913A is present, the user can effectively use the grip portion 612G from between the vertical protrusion 913A and the grip portion 612G.

[0173] [Variation 8] A railway vehicle sliding door structure 1000 shown in Fig. 15(b) is a modification of the railway vehicle sliding door structure 900 according to Modification 7 shown in Fig. 15(a). The sliding door structure 1000 differs from Modification 7 in that the protrusion 1013 has an "upper protrusion 1013B" and a "lower protrusion 1013C" instead of the "lateral protrusion 913B" of Modification 7. In the following, the same reference numerals are used for the same configurations as those of Modification 7 described above, and the description thereof will be omitted as appropriate.

[0174] 15(b) shows the sliding door 1001 in a closed state. The protrusions 1013 are connected to the upper and lower parts of the handle 612.

[0175] The protrusion 1013 is a plate-like member. The thickness of the protrusion 1013 decreases with increasing distance from the gripping portion 612G. The protrusion 1013 has a portion whose thickness is smaller than the diameter of the gripping portion 612G.

[0176] The protrusion 1013 has a vertical protrusion 913A, an upper protrusion 1013B, and a lower protrusion 1013C.

[0177] The upper protrusion 1013B and the lower protrusion 1013C are present between the vertical protrusion 913A and the gripping portion 612G. The upper protrusion 1013B and the lower protrusion 1013C are parallel to a direction perpendicular to the Y direction. The upper protrusion 1013B and the lower protrusion 1013C are spaced apart in the Y direction. The upper protrusion 1013B is located above the lower protrusion 1013C. The upper protrusion 1013B and the lower protrusion 1013C penetrate through the protrusion 1013 in the thickness direction.

[0178] The upper protrusion 1013B is between the upper part of the gripping portion 612G and the upper part of the vertical protrusion 913A. The upper protrusion 1013B is connected to the upper part of the gripping portion 612G and the upper part of the vertical protrusion 913A. The lower protrusion 1013C is between the lower part of the gripping portion 612G and the lower part of the vertical protrusion 913A. The lower protrusion 1013C is connected to the lower part of the gripping portion 612G and the lower part of the vertical protrusion 913A.

[0179] The length of the vertical protrusion 913A in the Y direction is longer than the length of the upper protrusion 1013B in the direction perpendicular to the Y direction. The length of the vertical protrusion 913A in the Y direction is longer than the length of the lower protrusion 1013C in the direction perpendicular to the Y direction.

[0180] When the sliding door 1001 is in a closed state, when the sliding door structure 1000 is viewed from above, the protrusion 1013 protrudes in a direction opposite to the direction from the gripping portion 612G toward the sliding door main body 11, similar to the first protrusion 613 shown in Fig. 13. In other words, the protrusion 1013 is present in an area R1 on the opposite side to the sliding door main body 11 with respect to a line L1 that passes through the gripping portion 612G and is parallel to the sliding door main body 11, similar to the first protrusion 613 shown in Fig. 13.

[0181] 13, the protrusion 1013 faces in a direction perpendicular to the sliding direction of the sliding door 1001 at the connecting position with the gripping portion 612G. In other words, the protrusion 1013 has a portion parallel to the Z direction at the connecting position with the gripping portion 612G, similar to the first protrusion 613 shown in FIG.

[0182] 13, the protrusion 1013 is inclined in the X direction so as to approach one end of the sliding door main body 11 as it moves away from the connection position with the gripping portion 612G. Here, "one end of the sliding door main body 11" refers to one end of the sliding door main body 11 that moves away from the wall portion 110 when the sliding door 1001 is opened, among both ends of the sliding door main body 11 in the width direction.

[0183] The method of connecting the protrusion 1013 to the gripping portion 612G is not particularly limited. For example, the protrusion 1013 may be connected to the gripping portion 612G in a manner similar to the example of the method of connecting the first protrusion 13 and the second protrusion 14 to the gripping portion 12G described in the first embodiment.

[0184] The above configuration provides the same effects as those of the railway vehicle sliding door structure 1000 according to Modification 7. In addition, since the protrusion 1013 is held by the gripping portion 612G by two members, the upper protrusion 1013B and the lower protrusion 1013C, the connection strength between the protrusion 1013 and the gripping portion 612G is increased.

[0185] Third Embodiment Next, a railroad vehicle sliding door structure 1100 according to a third embodiment will be described below with reference to Fig. 16. Fig. 16 shows the sliding door 1101 in an open state. The third embodiment differs from the first embodiment in the handle and the protrusion connected to the handle. Note that the same reference numerals are used for the same configurations as those in the above-mentioned first embodiment, and the description thereof will be omitted as appropriate.

[0186] The sliding door 1101 has a sliding door main body 11, a first handle 1151, a second handle 1152, a third handle 1153, a first protrusion 1113, and a second protrusion 1114.

[0187] (First handle) The first handle 1151 is disposed between the second handle 1152 and the third handle 1153 in the Y direction. The second handle 1152, the first handle 1151, and the third handle 1153 are lined up in order from the top in the Y direction. The first handle 1151 and the second handle 1152 are spaced apart in the Y direction. The first handle 1151 and the third handle 1153 are spaced apart in the Y direction.

[0188] The first handle 1151, the second handle 1152, and the third handle 1153 are attached to a position close to one end of the sliding door main body 11 in the width direction.

[0189] The first handle 1151 has a gripping portion 1151G, a first attachment portion 12A, and a second attachment portion 12B. The gripping portion 1151G is cylindrical and rod-shaped. The gripping portion 1151G is parallel to the Y direction. The gripping portion 1151G has a thickness that allows the user to grip it with his / her hand.

[0190] The grip portion 1151G exists in the Y direction from a position higher than the height C1 of the center of the sliding door main body 11 to a position lower than C1. In the Y direction, C1 is located between the heights of the upper end and the lower end of the grip portion 1151G.

[0191] The upper end of the gripping portion 1151G is attached to the sliding door main body 11 by the first attachment portion 12A. The upper end of the gripping portion 1151G is located at a position higher than C1 in the Y direction. The upper end of the gripping portion 1151G is closer to C1 in the Y direction than the height of the upper end 11U of the sliding door main body 11.

[0192] The lower end of the gripping portion 1151G is attached to the sliding door main body 11 by the second attachment portion 12B. The lower end of the gripping portion 1151G is located at a position lower than C1 in the Y direction. The lower end of the gripping portion 1151G is closer to C1 in the Y direction than the height of the lower end 11L of the sliding door main body 11.

[0193] (2nd handle, 3rd handle) The second handle 1152 and the third handle 1153 have the same configuration as the first handle 1151. The "grip 1152G" of the "second handle 1152" corresponds to the "grip 1151G" of the "first handle 1151". The "grip 1153G" of the "third handle 1153" corresponds to the "grip 1151G" of the "first handle 1151".

[0194] The grip portion 1151G of the second handle 1152 is located at a higher position than C1 in the Y direction. The upper end of the grip portion 1151G is closer to the height of the upper end 11U of the sliding door main body 11 in the Y direction than C1. The lower end of the grip portion 1151G is closer to C1 than the height of the upper end 11U of the sliding door main body 11 in the Y direction. The first protrusion 1113 is connected to the grip portion 1151G.

[0195] The gripping portion 1151G of the third handle 1153 is located at a position lower than C1 in the Y direction. The upper end of the gripping portion 1151G is closer to C1 than the height of the lower end 11L of the sliding door main body 11 in the Y direction. The lower end of the gripping portion 1151G of the third handle 1153 is closer to the height of the lower end 11L of the sliding door main body 11 in the Y direction than C1. The second protrusion 1114 is connected to the gripping portion 1151G.

[0196] (1st protrusion) The first protrusion 1113 exists in a range of height in the Y direction from the upper end to the lower end of the gripping portion 1152G of the second handle 1152. The first protrusion 1113 is slightly shorter than the second handle 1152 in the Y direction. The first protrusion 1113 is connected to the upper end and the lower end of the gripping portion 1152G of the second handle 1152.

[0197] The first protrusion 1113 is located at a position higher than C1 in the Y direction. The first protrusion 1113 has a portion that is closer to the height of the upper end 11U of the sliding door main body 11 than C1 in the Y direction, and a portion that is closer to C1 than the height of the upper end 11U of the sliding door main body 11.

[0198] The first protrusion 1113 is plate-shaped and the thickness of the first protrusion 1113 decreases with increasing distance from the grip portion 1152G.

[0199] The first protrusion 1113 has a vertical protrusion 1113A, an upper protrusion 1113B, and a lower protrusion 1113C.

[0200] The vertical protrusion 1113A is parallel to the Y direction. The vertical protrusion 1113A has a vertically elongated shape that is long in the Y direction. The vertical protrusion 1113A is spaced apart from the gripping portion 1152G. The thickness of the vertical protrusion 1113A is thinner than the diameter of the gripping portion 1152G. The vertical protrusion 1113A is shorter than the gripping portion 1152G in the Y direction.

[0201] The upper protrusion 1113B and the lower protrusion 1113C are parallel to a direction perpendicular to the Y direction. The upper protrusion 1113B and the lower protrusion 1113C are spaced apart in the Y direction. The upper protrusion 1113B is positioned higher than the lower protrusion 1113C. A space between the upper protrusion 1113B and the lower protrusion 1113C penetrates the first protrusion 1113 in the thickness direction.

[0202] The upper protrusion 1113B is between the upper end of the gripping portion 1152G and the upper end of the vertical protrusion 1113A. The upper protrusion 1113B is connected to the upper end of the gripping portion 1152G and the upper end of the vertical protrusion 1113A. The lower protrusion 1113C is between the lower end of the gripping portion 1152G and the lower end of the vertical protrusion 1113A. The lower protrusion 1113C is connected to the lower end of the gripping portion 1152G and the lower end of the vertical protrusion 1113A.

[0203] The length of the vertical protrusion 1113A in the Y direction is longer than the length of the upper protrusion 1113B in the direction perpendicular to the Y direction. The length of the vertical protrusion 1113A in the Y direction is longer than the length of the lower protrusion 1113C in the direction perpendicular to the Y direction. The first protrusion 1113 as a whole has a vertically elongated shape that is long in the Y direction.

[0204] The portion surrounded by the gripping portion 1152G and the first protruding body 1113 penetrates in the thickness direction of the first protruding body 1113. The portion surrounded by the gripping portion 1152G and the first protruding body 1113 is referred to as a "through hole 1113H." The through hole 1113H has a vertically elongated shape that is long in the Y direction. When the sliding door 1 is in a closed state, the through hole 1113H penetrates in the direction in which the sliding door 1101 slides.

[0205] When the sliding door 1101 is in a closed state, when the sliding door structure 1100 is viewed from above, the first protrusion 1113 protrudes in a direction opposite to the direction from the gripping portion 1152G toward the sliding door main body 11, similar to the first protrusion 13 shown in Fig. 3. In other words, the protrusion 413 is present in an area R1 on the opposite side to the sliding door main body 11 with respect to L1 shown in Fig. 3.

[0206] When the sliding door 1101 is closed, the first protrusion 1113 faces a direction perpendicular to the sliding direction of the sliding door 1101 at the connection position with the gripping portion 1152G, similar to the first protrusion 13 shown in Fig. 3. When the sliding door 1101 is closed, the first protrusion 1113 is inclined in the X direction so as to approach one end of the sliding door main body 11 as it moves away from the connection position with the gripping portion 1152G, similar to the first protrusion 13 shown in Fig. 3.

[0207] (Second protruding body) 16 has a similar configuration to the above-described first protrusion 1113. The differences between the second protrusion 1114 and the first protrusion 1113 will be described below.

[0208] The second protrusion 1114 is present in the Y direction within a range of height from the upper end to the lower end of the gripping portion 1153G of the third handle 1153. The second protrusion 1114 is connected to the upper end and the lower end of the gripping portion 1153G of the third handle 1153.

[0209] The second protrusion 1114 is located at a position lower than C1 in the Y direction. The second protrusion 1114 has a portion that is closer to C1 than the lower end 11L of the sliding door main body 11 in the Y direction, and a portion that is closer to the height of the lower end 11L of the sliding door main body 11 than C1.

[0210] The method of connecting the above-mentioned first protrusion 1113 to the gripping portion 1152G of the second handle 1152 is not particularly limited. The method of connecting the above-mentioned second protrusion 1114 to the gripping portion 1153G of the third handle 1153 is not particularly limited. For example, the first protrusion 1113 may be connected to the gripping portion 1152G of the second handle 1152 in a manner similar to the method of connecting the first protrusion 13 and the second protrusion 14 to the gripping portion 12G exemplified in the first embodiment. The second protrusion 1114 may be connected to the gripping portion 1153G of the third handle 1153 in a manner similar to the method of connecting the first protrusion 13 and the second protrusion 14 to the gripping portion 12G exemplified in the first embodiment.

[0211] The above configuration provides the following effects. The first protrusion 1113 is located at a height near the elbow or shoulder of a user. When opening the sliding door 1101, the user can open the sliding door 1101 without touching the grip portion 1152G by pushing the vertical protrusion 1113A with the elbow or shoulder in the direction in which the sliding door 1101 opens. The second protrusion 1114 is located at a height near the knees of a user. When opening the sliding door 1101, the user can open the sliding door 1101 by pushing the second protrusion 1114 with his / her knee in the direction in which the sliding door 1101 opens, without touching the grip portion 1153G. With the above configuration, the same effects as those of the sliding door structure 100 of the first embodiment can be obtained.

[0212] In addition, three handles, a first handle 1151, a second handle 1152, and a third handle 1153, are attached to the sliding door main body 11 at different heights. The three handles are located from a height closer to the upper end 11U of the sliding door main body 11 to a height closer to the lower end 11L of the sliding door main body 11 than the central height C1 of the sliding door main body 11. This allows the gripping parts of the handles to be located at a height that can be gripped by the user's hand, regardless of the user's body type or age. This increases the range of users who can use the gripping parts of the handles.

[0213] Furthermore, by attaching one protrusion to one handle, the stability of the protrusion is increased.

[0214] In addition to the first handle 1151, the user can use the second handle 1152 and the third handle 1153. The first protrusion 1113 is attached to the second handle 1152, and the user can use the second handle 1152 through the through hole 1113H. The second protrusion 1114 is attached to the third handle 1153, and the user can use the third handle 1153 through the through hole.

[0215] [Modification 9] A railroad car sliding door structure 1200 shown in Fig. 17(a) is a modified example of the railroad car sliding door structure according to the third embodiment. The sliding door structure 1200 differs from the third embodiment in that the sliding door structure 1200 does not include the third handle 1153 and the second protrusion 1114 shown in Fig. 16. In Fig. 17(a), the same reference numerals are used for the same components as those in the third embodiment described above.

[0216] The sliding door structure 1200 shown in FIG. 17(a) provides the same effects as those provided by the first handle 1151, the second handle 1152, and the first protrusion 1113 of the sliding door structure 1100 of the third embodiment.

[0217] [Modification 10] A railway vehicle sliding door structure 1300 shown in Fig. 17(b) is a modified example of the railway vehicle sliding door structure according to the third embodiment. The sliding door structure 1300 differs from the third embodiment in that the sliding door structure 1300 does not include the second handle 1152 and the first protrusion 1113 shown in Fig. 16. In Fig. 17(b), the same reference numerals are used for the same components as those in the third embodiment described above.

[0218] The sliding door structure 1300 shown in FIG. 17(b) provides the same effects as those provided by the first handle 1151, the third handle 1153, and the second protrusion 1112 of the sliding door structure 1100 of the third embodiment.

[0219] Although the embodiments of the present invention have been described above based on the drawings, the specific configuration should not be considered to be limited to these embodiments. The scope of the present invention is indicated by the claims rather than the above description, and includes all modifications within the meaning and scope of the claims.

[0220] For example, the holding means 2, the biasing mechanism 3, and the moving mechanism 4 described in the first embodiment are not limited to the holding means 2, the biasing mechanism 3, and the moving mechanism 4 shown in Figures 3 to 6, and can be modified. For example, the moving mechanism 4 may be the following moving mechanism shown in Figures 18(a) to (c). Note that the same reference numerals are used for the same configurations as in the first embodiment described above, and the description thereof will be omitted as appropriate.

[0221] The moving mechanism 204 shown in FIG.

[0222] The rail 243 is disposed above the sliding door 1. The rail 243 is inclined with respect to the horizontal direction. The rail 243 is inclined with respect to the sliding direction of the sliding door 1. When the sliding door 1 is closed, the further away from the handle 12, the higher the rail 43 is located. When the sliding door 1 is closed, the further away from one end of the sliding door main body 11 in the width direction, the higher the rail 43 is located. Here, "one end of the sliding door main body 11 in the width direction" refers to one end of the sliding door main body 11 that is separated from the wall portion when the sliding door 1 is opened, among both ends of the sliding door main body 11 in the width direction.

[0223] The sliding door 1 further includes a first hanging portion 16 and a second hanging portion 17.

[0224] A first roller 18 is attached to the tip of the first hanging part 16. A second roller 19 is attached to the tip of the second hanging part 17. The first roller 18 and the second roller 19 are disposed on a rail 243. The first roller 18 and the second roller 19 run on the rail 243.

[0225] When the sliding door 1 is in a closed state as shown in Fig. 18(a), a user opens the sliding door 1. When the sliding door 1 is in an open state as shown in Fig. 18(b), the user moves his / her body away from the sliding door main body 11, the handle 12, the first protruding body 13, and the second protruding body 14, the first roller 18 and the second roller 19 move down on the rail 243 due to the inclination of the rail 243. As a result, the sliding door 1 moves in the closing direction. With the above configuration, the movement mechanism 204 moves the sliding door 1 in a direction in which the sliding door 1 closes when the sliding door 1 is open.

[0226] 1 may be modified. For example, the first protrusion 13 may not have a portion parallel to the up-down direction. For example, the first protrusion 13 may be convex so as to be spaced apart from the sliding door main body 11. The second protrusion 14 of the first embodiment, variants 1 to 4 of the first embodiment, the second embodiment, variants 5 to 8 of the second embodiment, the third embodiment, and variants 9 and 10 of the third embodiment can also be modified in the same manner as above.

[0227] In the first embodiment described above, as shown in FIG. 2, the first protrusion 13 has the vertical protrusion 13A, the upper protrusion 13B, and the lower protrusion 13C. However, one of the upper protrusion 13B and the lower protrusion 13C may be absent. Also, another protrusion may be present between the upper protrusion 13B and the lower protrusion 13C. The other protrusion may be connected to the grip portion 12G and the vertical protrusion 13A. Also, there may be no upper protrusion 13B or no lower protrusion 13C, and a member may be present that is connected to the grip portion 12G and the vicinity of the center of the vertical protrusion 13A in the Y direction. The second protrusion 14 of the first embodiment, variants 1 to 4 of the first embodiment, the second embodiment, variants 5 to 8 of the second embodiment, the third embodiment, and variants 9 and 10 of the third embodiment can also be modified in the same manner as above.

[0228] In the above-described first embodiment, as shown in Fig. 2, the first protruding body 13 is formed with a through hole 13H. However, instead of the through hole 13H, a groove may be formed in the first protruding body 13. It is preferable that the groove is recessed in the thickness direction of the first protruding body 13 and recessed in the direction in which the sliding door 1 opens when the sliding door 1 is closed. The second protrusion 14 of the first embodiment, the first to third modifications of the first embodiment, the third embodiment, and the modifications of the third embodiment can also be modified in the same manner as above.

[0229] Moreover, the first protruding body 13 does not necessarily have to have the through hole 13H formed therein. The second protrusion 14 of the first embodiment, the first, second and fourth modifications of the first embodiment, the third embodiment and the ninth and tenth modifications of the third embodiment can also be modified in the same manner as above.

[0230] In the first embodiment described above, as shown in FIG. 2, the grip portion 12G of the handle 12 is rod-shaped. The first protrusion 13 is plate-shaped. The thickness of the first protrusion 13 becomes thinner as it moves away from the grip portion 12G. The first protrusion 13 has a portion whose thickness is thinner than the diameter of the grip portion 12G. However, the configuration of the grip portion 12G and the configuration of the first protrusion 13 are not limited to the above and can be changed. For example, the first protrusion 13 may be a plate-shaped member with a constant thickness. The vertical protrusion 13A, the upper protrusion 13B, and the lower protrusion 13C of the first protrusion 13 may be rod-shaped members. The second protrusion 14 of the first embodiment, variants 1 to 4 of the first embodiment, the second embodiment, variants 5 to 8 of the second embodiment, the third embodiment, and variants 9 and 10 of the third embodiment can also be modified in the same manner as above.

[0231] 3, in the first embodiment described above, the first protrusion 13 has a portion parallel to the Z direction at the connection position with the grip portion 12G of the handle 12. However, the first protrusion 13 does not have to have a portion parallel to the Z direction at the connection position with the grip portion 12G of the handle 12. The second protrusion 14 of the first embodiment, variants 1 to 4 of the first embodiment, the second embodiment, variants 5 to 8 of the second embodiment, the third embodiment, and variants 9 and 10 of the third embodiment can also be modified in the same manner as above.

[0232] In the above-described first embodiment, as shown in Fig. 3, the first protrusion 13 is inclined in the X direction as it moves away from the connection position with the grip portion 12G of the handle 12, so as to move closer to one end of the sliding door main body 11 that moves away from the wall portion 110 when the sliding door 1 is opened. However, the first protrusion 13 does not have to be inclined in the Z direction shown in Fig. 3. For example, the first protrusion 13 may be parallel to the Z direction, which is the thickness direction of the sliding door main body 11. The second protrusion 14 of the first embodiment, variants 1 to 4 of the first embodiment, the second embodiment, variants 5 to 8 of the second embodiment, the third embodiment, and variants 9 and 10 of the third embodiment can also be modified in the same manner as above.

[0233] Furthermore, the first protrusion 13 may not have an inclined shape as shown in FIG. 3, but may be curved in a concave shape so as to move away from the sliding door main body 11 as it moves away from the connection position with the gripping portion 12G of the handle 12. The second protrusion 14 of the first embodiment, the modified example of the first embodiment, the second embodiment, the modified example of the second embodiment, the third embodiment, and the modified example of the third embodiment can also be modified in the same manner as described above.

[0234] In the above-described first embodiment, the handle 12 is attached to a position close to one end in the width direction of the sliding door main body 11, as shown in Fig. 1. However, the position at which the handle 12 is attached to the sliding door main body 11 can be changed. Modifications 1 to 4 of the first embodiment, the second embodiment, modifications 5 to 8 of the second embodiment, the third embodiment, and modifications 9 and 10 of the third embodiment can also be modified in a similar manner to the above.

[0235] 1, 2(a) and 2(b), in the first embodiment described above, the first protrusion 13 and the second protrusion 14 are present in the range of height from the upper end to the lower end of the gripping portion 12G in the Y direction. However, a part of the first protrusion 13 and / or a part of the second protrusion 14 may not be present in the range of height from the upper end to the lower end of the gripping portion 12G in the Y direction. The same modifications as above are possible in Modifications 1 to 4. A part of the protrusion does not have to be present in the range of height from the upper end to the lower end of the grip portion 12G in the Y direction.

[0236] In the first embodiment described above, the first protrusion 13 is connected to the upper part of the gripping portion 12G, and the second protrusion 14 is connected to the lower part of the gripping portion 12G, as shown in Fig. 2. However, the connection positions of the first protrusion 13 and / or the second protrusion 14 on the gripping portion 12G are not limited to the above and can be changed. The same modifications as above can be made in Modifications 1 to 4, the second embodiment, Modifications 5 to 8 of the second embodiment, the third embodiment, and Modifications 9 and 10 of the third embodiment. A part of the protrusion does not have to be present within the range of height from the upper end to the lower end of the grip portion 12G in the Y direction.

[0237] In the first embodiment described above, as shown in Fig. 2, in the first protrusion 13, the upper protrusion 13B is connected to the upper end of the vertical protrusion 13A. The lower protrusion 13C is connected to the lower end of the vertical protrusion 13A. However, the upper protrusion 13B may be connected to a portion other than the upper end of the vertical protrusion 13A. The lower protrusion 13C is connected to a portion other than the lower end of the vertical protrusion 13A. Modifications 1 to 4 of the first embodiment, the second embodiment, modifications 5 to 8 of the second embodiment, the third embodiment, and modifications 9 and 10 of the third embodiment can also be modified in a similar manner to the above.

[0238] In the above-mentioned modification 4, as shown in FIG. 11(b), the groove 513F of the first protrusion 513 is surrounded by the peripheral portion 513E in the Y direction and in a direction perpendicular to the Y direction. However, the shapes of the groove 513F and the peripheral portion 513E can be changed. For example, the peripheral portion 513E may be configured to surround the groove 513F only from the Y direction. The second protrusion 514 can be changed in the same way. Also, when a groove is formed in the protrusion, the same change can be made as above. [Explanation of symbols]

[0239] 1, 401, 1101 Sliding door 2 Holding means 3 Biasing mechanism 4 Moving mechanism 11 Sliding door body 11L bottom end 11M Metal part 11U top end 12, 612 Toride 12A 1st mounting part 12B Second mounting part 12G, 1151G, 1152G, 1153G Grip 13, 513, 613, 1113 1st protrusion 13A, 413A, 613A, 614A, 913A, 1013A, 1113A Vertical protrusion 13B, 413B, 1013B, 1113B Upper protrusion 13C, 413C, 1013C, 1113C Lower protrusion 13H, 413H, 1113H through hole 13M Metal part 14, 514, 614, 1114 Second protrusion 15 Wire attachment part 16 First hanging part 17 Second hanging part 18 First Roller 19 Second Roller 31 First Link 32 Second Link 33 Link connection 34 Link support 41 Wire 42 Wire winding device 43, 243 rail 110 Railroad Car Walls 111 Aperture 130 Magnet section 140 Receiving part 413, 913, 1013 protrusion 513F, 514F Groove 613B, 614B, 913B Lateral protrusion 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000, 1100, 1200, 1300 Sliding door structure 1151 First Handle 1152 2nd Toride 1153 3rd Toride

Claims

1. A sliding door structure including a sliding door provided on a wall of a railway vehicle and slidable in a direction parallel to the wall, The sliding door is A sliding door body that is disposed in an opening of the wall portion and is capable of opening and closing the opening; A handle having a grip portion that can be gripped by a user and attached to the sliding door body; a protrusion connected to the handle, protruding from the grip portion in a direction opposite to the direction toward the sliding door body, and having a portion located at a position higher than the center height of the sliding door body in the vertical direction and / or a portion located at a height closer to the lower end of the sliding door body than the center height of the sliding door body, The sliding door structure includes: a holding means for holding the sliding door in a closed state when the sliding door is closed; a biasing mechanism that biases the sliding door in a direction in which the sliding door opens when a force is applied to the handle or the protrusion in order to open the sliding door in a closed state; a moving mechanism that moves the sliding door in a direction in which the sliding door is closed when the sliding door is open; It also has A railway vehicle sliding door structure characterized by the above.

2. The handle is located in the vertical direction from a position higher than the center height of the sliding door body to a position closer to the height of the lower end of the sliding door body than the center height of the sliding door body, The protrusion is connected to the upper and / or lower part of the handle.

2. The railroad car sliding door structure according to claim 1.

3. The handle is located at a height closer to the center of the sliding door body than the upper and lower ends of the sliding door body in the vertical direction, The protrusion has a portion located higher than an upper end of the handle and / or a portion located lower than a lower end of the handle in the vertical direction.

2. The railroad car sliding door structure according to claim 1.

4. The protrusion is A first protrusion having a portion located at a position higher than the center height of the sliding door body in the vertical direction; A second protrusion having a portion at a height closer to the lower end of the sliding door body than the height of the center of the sliding door body in the upper limit direction; Equipped with 4. A railroad car sliding door structure according to claim 1.

5. The protrusion has a vertically elongated portion.

4. A railroad car sliding door structure according to claim 1.

6. The protrusion is A vertical protrusion parallel to the up-down direction; an upper protrusion disposed between an upper portion of the vertical protrusion and the grip portion; A lower protrusion disposed between a lower portion of the vertical protrusion and the grip portion; having The gripping portion and the vertical protruding portion are spaced apart.

4. A railroad car sliding door structure according to claim 1.

7. A groove or a through hole is formed in the protrusion, The groove is recessed in a direction in which the sliding door opens when the sliding door is closed, The through hole penetrates in a direction in which the sliding door opens when the sliding door is closed.

4. A railroad car sliding door structure according to claim 1.

8. The gripping portion is rod-shaped, The protrusion is plate-shaped.

4. A railroad car sliding door structure according to claim 1.

9. The protrusion has a portion having a thickness smaller than a diameter of the gripping portion.

9. The railroad car sliding door structure according to claim 8.

10. The protrusion is oriented in a direction perpendicular to the sliding direction of the sliding door and perpendicular to the up-down direction at a connection position with the handle, The sliding door structure for a railway vehicle according to any one of claims 1 to 3, characterized in that the protrusion is inclined so as to approach one of both ends in the width direction of the sliding door main body that is separated from the wall portion when the sliding door is opened as the protrusion moves away from the connection position with the grip portion, or is curved concavely so as to move away from the sliding door main body.

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