Railway vehicle

Abstract

To provide a railway vehicle capable of preventing the increases of manufacturing man hour and a mass of a vehicle body structure by reducing the number of components.SOLUTION: A railway vehicle 1 comprises: a side outer plate 29; an opening 292 formed through the side outer plate 29 in a thickness direction; a shear plate 31 that reinforces the side outer plate 29 around the opening 292; and a glass plate 32 that covers the opening 292. The shear plate 31 is provided with a holding part 312 for holding the glass plate 32.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a railway vehicle including an outer plate, an opening penetrating the outer plate in the thickness direction, a shear plate reinforcing the outer plate around the opening, and a transparent plate covering the opening. [Background technology]

[0002] BACKGROUND ART Conventionally, in railway vehicles, external displays such as destination displays are generally provided on the sides (side structures) of the vehicle body structure.

[0003] For example, a destination display is provided as shown in Fig. 4. Fig. 4 is a schematic cross-sectional view of the periphery of an external display in a conventional railway vehicle. Note that the up-down direction in Fig. 4 corresponds to the height direction of the railway vehicle. Also, the left-right direction in Fig. 4 corresponds to the direction of the railway vehicle's sleepers, with the right side being the outside of the railway vehicle.

[0004] An opening 101a having a size corresponding to the external display 102 is formed in a side outer plate 101 constituting the side structure 100, and the external display 102 is disposed in a position facing the opening 101a. The opening 101a is closed by a transparent glass plate 104 held by a frame member 103. A waterproofing treatment is applied with a sealant 105 between the side outer plate 101 and the glass plate 104.

[0005] As described above, when providing the external display 102, naturally, an opening 101a is provided in the side skin 101 so that the external display 102 can be seen by passengers. However, providing the opening 101a reduces the rigidity of the side skin 101, which may cause the side skin 101 to bend. Therefore, it is common practice to reinforce the side skin 101 around the opening 101a by joining (for example, by spot welding) a shear plate 106 to the back surface of the side skin 101 (the surface on the left side in the figure) to ensure the rigidity of the side skin 101. A frame member 103 for holding a glass plate 104 is joined in a state overlapping the shear plate 106. Note that as a shear plate for reinforcing the periphery of an opening in a skin, a shear plate for reinforcing the periphery of a window opening, as disclosed in Patent Document 1, for example, is known. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-60266 Summary of the Invention [Problem to be solved by the invention]

[0007] As mentioned above, the problem of increasing the number of parts is that the shear plates must be joined to the side outer panels, and then the frame members must be joined. This increases the number of manufacturing steps for the railway vehicle and the weight of the vehicle body, so reducing the number of parts is an issue.

[0008] The present invention has been made to solve the above problems, and has as its object to provide a railway vehicle that can prevent an increase in manufacturing man-hours and the mass of the vehicle body by reducing the number of parts. [Means for solving the problem]

[0009] In order to solve the above problems, a railway vehicle of the present invention has the following configuration.

[0010] (1) A railway vehicle comprising an outer panel, an opening penetrating the outer panel in the thickness direction, a shear plate reinforcing the outer panel around the opening, and a transparent panel covering the opening, characterized in that the shear plate has a holding portion for holding the transparent panel.

[0011] (2) In the railway vehicle described in (1), it is preferable that the shear plate has a reinforcing portion joined to the outer plate to reinforce the outer plate, the retaining portion is formed at a step on the inner side of the railway vehicle relative to the reinforcing portion, the cross-sectional shape cut perpendicular to the outer plate is formed into an approximately Z-shape by the reinforcing portion and the retaining portion, and the transparent plate is positioned sandwiched between the outer plate and the retaining portion.

[0012] (3) In the railway vehicle described in (1) or (2), it is preferable that the opening is used for an external display. [Effects of the Invention]

[0013] According to the above-described railway vehicle, the shear plate for reinforcing the outer panel is provided with a holding portion for holding a transparent plate (e.g., a glass plate), so there is no need to use a frame member (e.g., frame member 103 (see FIG. 4)) that was previously required to hold a transparent plate. Because there is no need to use a frame member, it is possible to reduce the number of parts, and in turn, it is possible to prevent an increase in manufacturing man-hours and the mass of the vehicle body structure.

[0014] Furthermore, since conventional frame members were merely members for holding transparent plates (glass plates) and not members for ensuring the rigidity of the outer panel, the inventors of the present application have confirmed that there is no problem in terms of ensuring the rigidity of the outer panel even if a frame member is not provided as in the present invention. [Brief explanation of the drawings]

[0015] [Figure 1] FIG. 1 is a side view of a railway vehicle according to an embodiment of the present invention. [Figure 2]FIG. 2 is a view of the intermediate window block as seen from the inside of the vehicle body structure. [Figure 3] 3 is a cross-sectional view taken along the line AA in FIG. 2. [Figure 4] FIG. 10 is a schematic cross-sectional view of the periphery of an external display device in a conventional railway vehicle. DETAILED DESCRIPTION OF THE INVENTION

[0016] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A railway vehicle according to an embodiment of the present invention will be described in detail with reference to the drawings.

[0017] (Regarding railway vehicles) First, the schematic configuration of a railway vehicle 1 according to this embodiment will be described with reference to Fig. 1. Fig. 1 is a side view of the railway vehicle 1 according to this embodiment. Note that the left-right direction in Fig. 1 corresponds to the track direction of the railway vehicle 1, and the height direction in Fig. 1 corresponds to the vertical direction of the railway vehicle 1.

[0018] The railway vehicle 1 is, for example, a stainless steel vehicle used as a commuter vehicle, and as shown in FIG. 1, has a vehicle body structure 2 and a bogie 3 that supports the vehicle body structure 2.

[0019] The vehicle body structure 2 is configured to form a hexahedron and includes an underframe 21 that forms the floor of the railway vehicle 1, a front end body structure 22 that is erected at one end of the underframe 21 in the track direction (the left end in FIG. 1 ) and forms the front part of the vehicle body structure 2, a transverse end body structure 23 that is erected at the other end of the underframe 21 in the track direction (the right end in FIG. 1 ) and forms a coupling part of the vehicle body structure 2, a pair of side bodies 24 that are erected at both ends of the underframe 21 in the sleeper direction and form the side parts of the vehicle body structure 2, and a roof body structure 25 that is connected to the upper end of the front end body structure 22, the upper end of the transverse end body structure 23, and the upper ends of the pair of side bodies 24 and forms the roof part of the vehicle body structure 2. The front end body structure 22 side is the front of the railway vehicle 1, and the transverse end body structure 23 side is the rear of the railway vehicle 1.

[0020] The side structure 24 is provided with a passenger boarding / alighting door 26 and windows 27A, 27B, 27B, and 27C that lead to the passenger compartment. Furthermore, destination display units 28, 28 for displaying destinations are provided above the windows 27B, 27B on the side surfaces (side structure 24) of the car body structure 2. The side structure 24 is configured by joining together a front-side end window block 241 with a window 27A, a rear-side end window block 242 with a window 27C, two sets of middle window blocks 243 with windows 27B and destination display units 28, and three sets of side entrance blocks 244 with passenger boarding / alighting doors 26. Note that the number of middle window blocks and side entrance blocks is merely an example and is not limited thereto. For example, three sets of middle window blocks and four sets of side entrance blocks may be used.

[0021] (About the destination display) Next, the configuration of the destination display unit 28 will be explained using Figures 2 and 3. Figure 2 is a view of the intermediate window block 243 as seen from the inside of the vehicle body structure 2. The left-right direction in Figure 2 corresponds to the track direction of the railway vehicle 1, and the height direction in Figure 2 corresponds to the vertical direction of the railway vehicle 1. Figure 3 is a cross-sectional view taken along line AA in Figure 2. The left-right direction in Figure 3 corresponds to the direction of the sleepers of the railway vehicle 1.

[0022] The intermediate window block 243 is mainly composed of a side outer plate 29 (see FIG. 3, an example of an outer plate) and rib members that reinforce the side outer plate 29 from the inside. The side outer plate 29 is made of stainless steel, for example, with a thickness of 2 mm. A window opening 291 (see FIG. 2) for forming the window 27B of the car body structure 2 is provided in the center of the side outer plate 29, penetrating the side outer plate 29 in the thickness direction. Furthermore, an opening 292 for forming the destination display unit 28 is provided above the window opening 291, penetrating the side outer plate 29 in the thickness direction. The size of the opening 292 is not particularly limited, but it is desirable that it be large enough to ensure the rigidity of the side outer plate 29 and to match the size of the image displayed on the external display 30. The opening 292 is also closed by a transparent glass plate 32 (an example of a transparent plate).

[0023] A shear plate 31 is joined to the inner surface of the side outer plate 29 so as to surround the opening 292. The shear plate 31 is made of, for example, 2 mm thick stainless steel. The shear plate 31 is a frame-shaped member consisting of four sides: a first side 31a and a second side 31b parallel to the track direction, and a third side 31c and a fourth side 31d parallel to the vertical direction. Each of the first side 31a, the second side 31b, the third side 31c, and the fourth side 31d has a reinforcing portion 311 joined to the inner surface of the side outer plate 29 and a retaining portion 312 formed at a stepped position on the inward side of the car body structure 2 relative to the reinforcing portion 311, forming a substantially Z-shaped cross section. The end of each retaining portion 312 opposite the reinforcing portion 311 forms the periphery of an opening corresponding to the opening 292. That is, the shear plate 31 of this embodiment is formed as a one-piece frame-like member having a box-like shape with an open top and a bottom, the box-like shape having an opening in its approximately rectangular bottom surface that corresponds to the opening 292 in the side outer panel 29, and reinforcing portions 311 extending outward parallel to the bottom surface on all four sides.

[0024] The reinforcing portions 311 of the shear plate 31 are joined to the side skin 29 by laser welding performed along the direction in which each of the sides 31a-31d extends (i.e., the first side 31a and the second side 31b are in the track direction, and the third side 31c and the fourth side 31d are in the vertical direction). By being joined to the side skin 29, the reinforcing portions 311 reinforce the side skin 29 around the opening 292. This ensures the rigidity of the side skin 29.

[0025] Of the sides 31a-31d, the reinforcing portion 311 of the first side 31a located at the top (i.e., on the roof structure 25 side) is welded in a three-layer configuration to the side outer plate 29 and the roof outer plate 251 that constitutes the roof structure 25. The method of joining the reinforcing portion 311 to the side outer plate 29 is not limited to laser welding, and other methods such as spot welding may also be used.

[0026] The retaining portion 312 of the shear plate 31 is used to retain the glass plate 32 that closes the opening 292. As already mentioned, the retaining portion 312 is formed at a different level from the reinforcing portion 311 on the inner side of the car body structure 2. This forms a gap 33 between the retaining portion 312 and the side outer plate 29. The glass plate 32 is inserted into this gap 33. In other words, the glass plate 32 is positioned sandwiched between the side outer plate 29 and the retaining portion 312. The size of the gap 33 is adjusted appropriately depending on the thickness of the glass plate 32. A sealant 34 is applied to the periphery of the opening 292 to waterproof the area between the side outer plate 29 and the glass plate 32.

[0027] (About the effects) As described above, the railway vehicle 1 of this embodiment is characterized in that (1) in the railway vehicle 1 comprising an outer plate (e.g., a side outer plate 29), an opening 292 penetrating the outer plate (side outer plate 29) in the thickness direction, a shear plate 31 reinforcing the outer plate (side outer plate 29) around the opening 292, and a transparent plate (e.g., a glass plate 32) covering the opening 292, the shear plate 31 comprising a holding portion 312 for holding the transparent plate (glass plate 32).

[0028] (2) In the railway vehicle 1 described in (1), it is preferable that the shear plate 31 has a reinforcing portion 311 joined to the outer plate (side outer plate 29) to reinforce the outer plate (side outer plate 29), the retaining portion 312 is formed at a step on the inner side of the railway vehicle 1 (vehicle body 2) relative to the reinforcing portion 311, the cross-sectional shape cut perpendicular to the outer plate (side outer plate 29) is formed into an approximately Z-shape by the reinforcing portion 311 and the retaining portion 312, and the transparent plate (glass plate 32) is positioned sandwiched between the outer plate (side outer plate 29) and the retaining portion 312.

[0029] (3) In the railway vehicle 1 described in (1) or (2), the opening 292 is preferably used for an external display 30.

[0030] According to the above-described railway vehicle 1, the shear plate 31 for reinforcing the outer plate (side outer plate 29) has a holding portion 312 for holding the transparent plate (glass plate 32), so there is no need to use a frame member (for example, frame member 103 (see FIG. 4)) that was conventionally required for holding the transparent plate. Because there is no need to use a frame member, it is possible to reduce the number of parts, and in turn, it is possible to prevent an increase in manufacturing man-hours and the mass of the vehicle body structure 2.

[0031] Furthermore, since conventional frame members were merely members for holding transparent plates and were not members for ensuring the rigidity of the outer panels, the inventors of the present application have confirmed that there is no problem in terms of ensuring the rigidity of the outer panels even if a frame member is not provided as in the present invention.

[0032] The above-described embodiment is merely illustrative and does not limit the present invention in any way. Therefore, various improvements and modifications of the present invention are possible without departing from the spirit and scope of the present invention. For example, the retaining portion 312 of the shear plate 31 has been described as retaining the glass plate 32 of the destination display unit 28 provided on the side structure 24, but this is not limited thereto and the retaining portion 312 of the shear plate 31 can also be applied to a destination display unit provided on the front end structure 22. Furthermore, the retaining portion 312 of the shear plate 31 can be used not only to retain the glass plate 32 of the destination display unit 28 but also to retain the lens of a side light and to retain a glass plate that closes an opening for a marker light provided on the front end structure 22. [Explanation of symbols]

[0033] 1. Railway vehicles 29 Side skin (example of skin) 31 Shear Plate 32 Glass plate (an example of a transparent plate) 292 Aperture 312 Holding part

Claims

1. A railway vehicle comprising an outer plate, an opening penetrating the outer plate in a thickness direction, a shear plate reinforcing the outer plate around the opening, and a transparent plate covering the opening, the shear plate includes a holding portion for holding the transparent plate; A railway vehicle characterized by:

2. The railway vehicle according to claim 1, The shear plate is a reinforcing portion joined to the outer plate to reinforce the outer plate, The retaining portion is formed at a different level from the reinforcing portion on an inner side of the railway vehicle, a cross section cut perpendicular to the outer plate is formed into a substantially Z-shape by the reinforcing portion and the retaining portion; the transparent plate is positioned between the outer plate and the holding portion; A railway vehicle characterized by:

3. The railway vehicle according to claim 1 or 2, the opening is used for an external display; A railway vehicle characterized by:

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