Railway car seat

Abstract

To provide a railway car seat capable of restoring a backrest cushion or a seat cushion in a short time even when the backrest cushion or the seat cushion is damaged or soiled.SOLUTION: In one embodiment of the present disclosure, in a railway car seat 1, a backrest cushion 20 and / or a seat cushion 30 are formed such that, in a cross section in thickness directions TDA, TDB, the outer shape of a first surface 20a, 30a side and the outer shape of a second surface 20b, 30b side are formed to be linearly symmetrical with respect to center lines CLA, CLB in the thickness directions TDA, TDB, or point symmetrical with respect to a predetermined center point CPA in the cross section.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to rail vehicle seats. [Background technology]

[0002] Conventionally, the covering material of the backrest cushions and the like (i.e., the backrest cushions and the seat cushions) of railway vehicle seats is attached only on one side to improve the heat transfer of the heater, so that, for example, when the covering material is damaged, it is necessary to replace it with a spare backrest cushion, etc. Furthermore, because spare backrest cushions, etc. are often not kept on-board railway vehicles, it is necessary to take the trouble of bringing the railway vehicle into a garage and replace the backrest cushion, etc. with a spare backrest cushion, etc. As a result, it is not possible to restore the railway vehicle seats in a short period of time.

[0003] As a technology relating to railway vehicle seats, Patent Document 1 discloses a passenger chair for railway vehicles in which the seat cushion and the backrest cushion are made to be approximately the same size and shape so that if either one becomes partially damaged or dirty, they can be replaced and used again. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2002-331929 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the passenger seats of the railway vehicle disclosed in Patent Document 1, damaged or dirty seat cushions or back cushions are to be covered with another sheet, so another sheet must be prepared. Therefore, if another sheet is not available, there is a risk that the passenger seats of the railway vehicle cannot be restored in a short time.

[0006] Therefore, the present disclosure has been made to solve the above-mentioned problems, and aims to provide a seat for a railway vehicle that can be restored in a short period of time even if the backrest cushion or seat cushion is damaged or soiled. [Means for solving the problem]

[0007] In order to achieve the above object, the railway vehicle seat of the present disclosure has the following configuration. (1) A railway vehicle seat having a backrest cushion that supports the back of a seated occupant and a seat cushion that supports the buttocks of the seated occupant, the backrest cushion and the seat cushion each have a first surface and a second surface as two surfaces in the thickness direction, and the backrest cushion and / or the seat cushion are characterized in that, in a cross section in the thickness direction, the outer contour of the first surface side and the outer contour of the second surface side are formed to be linearly symmetrical with respect to a center line in the thickness direction or point symmetrical with respect to a specified center point in the cross section.

[0008] In the present disclosure, the backrest cushion and the seat cushion are formed in a reversible shape (i.e., a shape that can be used on both sides). Therefore, when the first surface (or second surface) of the backrest cushion or the seat cushion is used as the seat surface (i.e., the surface or surface that the seated person comes into contact with) of a railway vehicle seat, even if the first surface (or second surface) is damaged or soiled, the seat cushion or the backrest cushion can be flipped over to switch the first and second surfaces, and the second surface (or the first surface) can be used as the seat surface of the railway vehicle seat. In this way, even if the backrest cushion or the seat cushion is damaged or soiled, the railway vehicle seat can be restored in a short time.

[0009] (2) In the railway vehicle seat of (1), it is possible to select that the first surface and the second surface have the same color and pattern.

[0010] In the present disclosure, even if the backrest cushion or the seat cushion is inverted and the surface used as the seat surface of the railway vehicle seat is switched between the first surface and the second surface, the color and pattern of the seat surface of the railway vehicle seat do not change. Therefore, the surface used as the seat surface of the railway vehicle seat can be switched between the first surface and the second surface without any sense of incongruity.

[0011] (3) In the railway vehicle seat of (1), it is possible to select that the first surface and the second surface have different colors and / or patterns.

[0012] In the present disclosure, by switching the surface used as the seating surface of a railway vehicle seat between the first surface and the second surface as needed, it is possible to change the layout of the railway vehicle seats according to the season, or to change the classification of the seats into general seats and first class seats, or unreserved seats and reserved seats, etc.

[0013] (4) In any one of the railway vehicle seats (1) to (3), it is possible to select one of the first and second surfaces to use a covering material with a heater function and the other surface to use a covering material with a cooler function.

[0014] In the present disclosure, the surface used as the seat surface of a railway vehicle seat can be switched between the first surface and the second surface depending on the season, such as summer or winter. Effect of the Invention

[0015] According to the railway vehicle seat of the present disclosure, even if the backrest cushion or the seat cushion is damaged or soiled, it can be restored in a short time. [Brief description of the drawings]

[0016] [Figure 1] 1 is a schematic perspective view of a railway vehicle seat according to an embodiment of the present invention provided inside a railway vehicle. [Diagram 2] FIG. 2 is a diagram showing a cross section of a railway vehicle seat (that is, cross section AA in FIG. 1) and cross sections of a backrest cushion and a seat cushion before being installed in the railway vehicle seat. [Diagram 3] FIG. 2 is a perspective view of a backrest cushion, showing an example of the color and pattern of the first surface. [Figure 4] FIG. 13 is a perspective view of a backrest cushion, showing an example in which the color and pattern of the second surface are the same as those of the first surface. [Diagram 5] FIG. 13 is a perspective view of a backrest cushion, showing an example in which the color and pattern of the second surface are different from those of the first surface. [Figure 6] FIG. 2 is a diagram showing a cross section of a railway vehicle seat (that is, cross section AA in FIG. 1) and cross sections of a backrest cushion and a seat cushion before being installed in the railway vehicle seat in a modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] An embodiment of a railway vehicle seat according to the present disclosure will be described.

[0018] (Overview of railway vehicle seats) 1, the railway vehicle seat 1 of this embodiment is a long seat that is installed vertically along the rail direction of the railway vehicle (parallel to the side structure 2) and can accommodate multiple people sitting side by side. The railway vehicle seat 1 has a seat frame 10, a backrest cushion 20, and a seat cushion 30.

[0019] In the following description, as shown in Figure 1, the rail direction (longitudinal direction) of the railway vehicle is referred to as the "front-to-back direction", the direction of the sleepers is referred to as the "left-to-right direction", and the height direction of the railway vehicle is referred to as the "up-down direction".

[0020] As shown in Fig. 2, the seat frame 10 is fixed to the side structure 2 (for example, using bolts). The seat frame 10 includes a base end 11 and a seat cushion receiving portion 12. The base end 11 is formed in the up-down direction and is formed so as to extend in the front-rear direction. The seat cushion receiving portion 12 is formed from a vertically intermediate portion of the base end 11 toward the center of the vehicle (to the left in Fig. 2) and diagonally upward. The seat frame 10 is formed, for example, from an aluminum-based member.

[0021] The backrest cushion 20 supports the back of a seated person and is mounted at a position above the seat cushion 30. The backrest cushion 20 includes a first backrest skin 21, a second backrest skin 22, a backrest cushion member 23, and a fixing part 24.

[0022] The first and second backrest skins 21 and 22 are each made of a skin material. The first and second backrest skins 21 and 22 cover the backrest cushion member 23. In this manner, in this embodiment, the skin material is applied to both sides of the backrest cushion 20.

[0023] The fixing parts 24 are equipped with hook-and-loop fasteners. The backrest cushion 20 is fixed to the side structure 2 and the seat frame 10 by the hook-and-loop fasteners of the two fixing parts 24 without using tools. Note that it is desirable to provide a predetermined order for fixing the backrest cushion 20 to the side structure 2 and the seat frame 10 so that the backrest cushion 20 cannot be easily removed from the side structure 2 and the seat frame 10.

[0024] The seat cushion 30 supports the buttocks of a seated person and is mounted at a position lower than the backrest cushion 20. The seat cushion 30 includes a first seat cover 31, a second seat cover 32, a seat cushion member 33, and a fixing part 34.

[0025] The first seat skin 31 and the second seat skin 32 are each made of a skin material. The seat cushion member 33 is covered with the first seat skin 31 and the second seat skin 32. In this manner, in this embodiment, the skin material is applied to both sides of the seat cushion 30.

[0026] The fixing parts 34 are provided with hook-and-loop fasteners. The seat cushion 30 is fixed to the seat frame 10 by the hook-and-loop fasteners of the two fixing parts 34 without using tools. Note that it is preferable to provide a predetermined order for fixing the seat cushion 30 to the seat frame 10 so that the seat cushion 30 cannot be easily removed from the seat frame 10.

[0027] In the example shown in Fig. 1, the backrest cushions 20 are manufactured for each seat and are arranged adjacent to each other at a distance. The seat frame 10 and the seat cushion 30 are provided to extend to a required length so that multiple people can sit side by side.

[0028] (Details about the backrest cushion) 2, the backrest cushion 20 has a first surface 20a and a second surface 20b as both surfaces in the thickness direction TDA of the backrest cushion 20. In this embodiment, the first surface 20a is a surface formed by a first backrest skin 21, and the second surface 20b is a surface formed by a second backrest skin 22.

[0029] In this embodiment, the outer shape of the first surface 20a side and the outer shape of the second surface 20b side are formed symmetrically with respect to the center line CLA in the thickness direction TDA of the backrest cushion 20 in a cross section (cross section shown in FIG. 2) in the thickness direction TDA of the backrest cushion 20. The portion where the back of a seated passenger comes into contact is formed thick, while the lower end of the backrest cushion 20 is formed thin so as not to get in the way. The base end 11 of the seat frame 10 is formed in a shape corresponding to the outer shape of the backrest cushion 20, that is, the portion where the lower end of the backrest cushion 20 comes into contact is thick, and the upper portion is formed so as to gradually become thinner in accordance with the outer shape of the backrest cushion 20 (in this embodiment, the vicinity of the thickest portion of the backrest cushion 20 is the upper end of the base end 11, and the backrest cushion 20 above this portion comes into contact with the side structure 2).

[0030] Here, "a cross section in the thickness direction TDA of the resting cushion 20" refers specifically to a cross section in the thickness direction TDA of the resting cushion 20, and also to a cross section perpendicular to the fore-and-aft direction of the railway vehicle 1 shown in Figure 1 (a direction perpendicular to the page of Figure 2) when the resting cushion 20 is mounted on the railway vehicle seat 1 (i.e., a cross section in a direction parallel to the page of Figure 2).

[0031] The first surface 20a and the second surface 20b of the backrest cushion 20 may have the same color and pattern (i.e., design) as shown in Figures 3 and 4, or may have different colors and patterns as shown in Figures 3 and 5. Furthermore, the first surface 20a and the second surface 20b of the backrest cushion 20 may have different colors or patterns, i.e., only one of the color and the pattern may be different.

[0032] Furthermore, of the first surface 20a and the second surface 20b of the back-resting cushion 20, a skin material having a heater function (i.e., the skin material itself has a heater function) may be used on one surface, and a skin material having a cooler function (i.e., the skin material itself has a cooler function) may be used on the other surface. That is, in the back-resting cushion 20, a skin material having a heater function may be used as the first back-resting skin 21 (or the second back-resting skin 22), and a skin material having a cooler function may be used as the second back-resting skin 22 (or the first back-resting skin 21). Electrical wiring may be connected to the skin material having the heater function or the cooler function.

[0033] (Details about the seat cushion) 2, the seat cushion 30 has a first surface 30a and a second surface 30b as both surfaces in the thickness direction TDB of the seat cushion 30. In this embodiment, the first surface 30a is a surface formed by a first seat skin 31, and the second surface 30b is a surface formed by a second seat skin 32.

[0034] In this embodiment, the seat cushion 30 has an outer shape on the first surface 30a side and an outer shape on the second surface 30b side formed symmetrically with respect to the center line CLB of the thickness direction TDB in the cross section (cross section shown in FIG. 2) of the thickness direction TDB of the seat cushion 30. In addition, the tip side (vehicle center side) and base end side (side structure side) of the seat cushion 30 are formed thick so that the seated passenger feels comfortable, while the intermediate part is formed relatively thin. The seat cushion receiving part 12 of the seat frame 10 has a shape corresponding to the outer shape of the seat cushion 30, that is, a recess is formed in the part where the tip side of the seat cushion 30 abuts, and is formed so as to gradually decline from the end of the structure side of the recess side toward the side structure side. In this embodiment, the connection part of the seat cushion receiving part 12 with the base end 11 is not provided with a recess, and the base end side of the seat cushion 30 is made higher so as to be connected to the backrest cushion 20, but a recess corresponding to the shape of the seat cushion 30 may be provided in this part as well as the tip side.

[0035] Here, "cross section in the thickness direction TDB of the seat cushion 30" refers specifically to a cross section in the thickness direction TDB of the seat cushion 30, and also to a cross section perpendicular to the fore-and-aft direction of the railway vehicle 1 shown in Figure 1 (a direction perpendicular to the paper surface of Figure 2) when the seat cushion 30 is mounted on the railway vehicle seat 1 (i.e., a cross section in a direction parallel to the paper surface of Figure 2).

[0036] Similarly to the backrest cushion 20, the first surface 30a and the second surface 30b of the seat cushion 30 may have the same color and pattern, or may have different colors and patterns. Furthermore, the first surface 30a and the second surface 30b of the seat cushion 30 may have different colors or patterns, i.e., only one of the colors and patterns may be different.

[0037] Also, a covering material having a heater function may be used on one of the first surface 30a and the second surface 30b of the seat cushion 30, and a covering material having a cooler function may be used on the other surface. That is, in the seat cushion 30, a covering material having a heater function may be used as the first seat covering 31 (or the second seat covering 32), and a covering material having a cooler function may be used as the second seat covering 32 (or the first seat covering 31). Note that an electric wiring is connected to the covering material having the heater function or the cooler function.

[0038] (Effects of this embodiment) 2, the backrest cushion 20 has a first backrest skin 21 and a second backrest skin 22 stretched on both sides thereof, i.e., the first surface 20a and the second surface 20b, respectively. In the cross section of the backrest cushion 20 in the thickness direction TDA, the outer shape of the first surface 20a side and the outer shape of the second surface 20b side are formed symmetrically with respect to the center line CLA in the thickness direction TDA.

[0039] In this way, the backrest cushion 20 is formed in a reversible shape (i.e., a shape that can be used on both sides). Therefore, even if the first surface 20a (or the second surface 20b) of the backrest cushion 20 is damaged or soiled when the first surface 20a (or the second surface 20b) is used as the seat surface of the railway vehicle seat 1, the backrest cushion 20 can be turned over to switch the first surface 20a and the second surface 20b, and the second surface 20b (or the first surface 20a) can be used as the seat surface of the railway vehicle seat 1. In this way, even if the backrest cushion 20 is damaged or soiled, the backrest cushion 20 can be turned over and the railway vehicle seat 1 can be restored in a short time without having to prepare spare parts for replacement in advance for each vehicle.

[0040] The seat cushion 30 has a first seat skin 31 and a second seat skin 32 stretched on both sides thereof, i.e., the first surface 30a and the second surface 30b, respectively. In the cross section of the seat cushion 30 in the thickness direction TDB, the outer shape of the first surface 30a side and the outer shape of the second surface 30b side are formed symmetrically with respect to the center line CLB of the thickness direction TDB.

[0041] In this way, the seat cushion 30 is formed in a reversible shape. Therefore, even if the first surface 30a (or the second surface 30b) of the seat cushion 30 is damaged or soiled when the first surface 30a (or the second surface 30b) is used as the seat surface of the railway vehicle seat 1, the seat cushion 30 can be turned over and the first surface 30a and the second surface 30b can be switched over without preparing spare parts for replacement in advance for each vehicle, and the second surface 30b (or the first surface 30a) can be used as the seat surface of the railway vehicle seat 1. In this way, even if the seat cushion 30 is damaged or soiled, the seat cushion 30 can be turned over and the railway vehicle seat 1 can be restored in a short time.

[0042] Furthermore, if the first surface 20a and the second surface 20b of the backrest cushion 20 are made the same in color and pattern, even if the backrest cushion 20 is turned over and the surface used as the seat surface of the railway vehicle seat 1 is switched between the first surface 20a and the second surface 20b, the color and pattern of the seat surface of the railway vehicle seat 1 will not change. Therefore, the surface used as the seat surface of the railway vehicle seat 1 can be switched between the first surface 20a and the second surface 20b without any sense of incongruity. Furthermore, by making the first surface 20a and the second surface 20b of the backrest cushion 20 the same in color and pattern, it is possible to simply turn the backrest cushion 20 over, and therefore the railway vehicle seat 1 can be restored in a short time.

[0043] Similarly, if the first surface 30a and the second surface 30b of the seat cushion 30 are made the same in color and pattern, the surface used as the seat surface of the railway vehicle seat 1 can be switched between the first surface 30a and the second surface 30b without any sense of incongruity. Furthermore, by making the first surface 30a and the second surface 30b of the seat cushion 30 the same in color and pattern, it is possible to simply turn the seat cushion 30 over, and therefore the railway vehicle seat 1 can be restored in a short time.

[0044] Furthermore, by making the first surface 20a and the second surface 20b of the backrest cushion 20 have different colors and / or patterns, the surface used as the seat surface of the railway vehicle seat 1 can be switched between the first surface 20a and the second surface 20b as necessary, thereby making it possible to change the design of the railway vehicle seat 1 according to the season (for example, warm colors and cool colors and patterns) or to change the classification of seats into general seats and first class seats, or unreserved seats and reserved seats, etc.

[0045] Similarly, by making the first surface 30a and the second surface 30b of the seat cushion 30 have different colors and / or patterns, the surface used as the seat surface of the railway vehicle seat 1 can be switched between the first surface 30a and the second surface 30b as needed, thereby making it possible to change the design of the railway vehicle seat 1 according to the season, or to change the classification of the seat between general seats and first class seats, or between unreserved seats and reserved seats, for example.

[0046] Furthermore, a covering material having a heating function may be used on one of the first surface 20a and the second surface 20b of the backrest cushion 20, and a covering material having a cooling function may be used on the other surface. This allows the surface of the backrest cushion 20 used as the seat surface of the railway vehicle seat 1 to be switched between the first surface 20a and the second surface 20b depending on the season, such as summer or winter.

[0047] Similarly, a covering material having a heating function may be used on one of the first surface 30a and the second surface 30b of the seat cushion 30, and a covering material having a cooling function may be used on the other surface. This allows the surface of the seat cushion 30 used as the seat surface of the railway vehicle seat 1 to be switched between the first surface 30a and the second surface 30b depending on the season, such as summer or winter.

[0048] (About modified examples) As a modified example, as shown in FIG. 6, in a cross section of the backrest cushion 20 in the thickness direction TDA, the outer shape of the first surface 20a side and the outer shape of the second surface 20b side may be formed point-symmetrically with respect to a predetermined center point CPA in the cross section.

[0049] In this way, the backrest cushion 20 is formed in a reversible shape. Therefore, just like the case where the backrest cushion 20 is formed in line symmetry, even if the backrest cushion 20 is damaged or soiled, the backrest cushion 20 can be turned over and the railway vehicle seat 1 can be restored in a short time.

[0050] It should be noted that the above-described embodiments are merely examples and do not limit the present disclosure in any way. Needless to say, various improvements and modifications are possible without departing from the spirit and scope of the present disclosure.

[0051] For example, the seat cushion 30 may be formed so that the outer shape of the first surface 30a side and the outer shape of the second surface 30b side are point-symmetrical with respect to a predetermined center point in the cross section in the thickness direction TDB of the seat cushion 30. In this embodiment, the seat cushion 30 has been described as having a required length for multiple people to sit side by side, but it may also be manufactured for each seat unit and placed adjacent to each other, like the backrest cushion 20. The backrest cushion 20 may also have a required length to support the backs of multiple seated people.

[0052] Furthermore, the backrest cushion 20 or the seat cushion 30, that is, only one of the backrest cushion 20 and the seat cushion 30, may be formed in line symmetry or point symmetry as described above.

[0053] Furthermore, the railway vehicle seat 1 may be a seat other than a long seat (for example, a cross seat, etc.). [Explanation of symbols]

[0054] 1. Seats for railway carriages 10 Seat frame 20 Backrest Cushion 20a Page 1 20b 2nd side 21 First back skin 22 Second dorsal epidermis 30 Seat Cushion 30a 1st page 30b 2nd side 31 1st seat epidermis 32 2nd seat epidermis TDA, TDB thickness direction CLA,CLB center line CPA center point

Claims

1. A backrest cushion that supports the back of a seated person; A seat cushion that supports the buttocks of the seated person; In a railway vehicle seat having The backrest cushion and the seat cushion each have a first surface and a second surface as two surfaces in a thickness direction, The backrest cushion and / or the seat cushion are In the cross section in the thickness direction, the outer shape of the first surface side and the outer shape of the second surface side are formed to be line symmetrical with respect to a center line in the thickness direction or point symmetrical with respect to a predetermined center point in the cross section; A seat for a railway vehicle, comprising:

2. The railway vehicle seat according to claim 1, The first surface and the second surface have the same color and pattern; A seat for a railway vehicle, comprising:

3. The railway vehicle seat according to claim 1, The first surface and the second surface have different colors and / or patterns; A seat for a railway vehicle, comprising:

4. 4. The railway vehicle seat according to claim 1, a skin material having a heater function is used on one of the first surface and the second surface, and a skin material having a cooler function is used on the other surface; A seat for a railway vehicle, comprising:

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