Lifeguard for rolling stock and railroad vehicle

Abstract

To provide a lightweight and high strength lifeguard for rolling stock by effectively providing the lifeguard for rolling stock with a reinforcement member, and a railroad vehicle with the lifeguard for rolling stock.SOLUTION: A lifeguard for rolling stock has: an obstacle removal part provided on a front part of a railroad vehicle to remove obstacles; and two middle beams provided between the obstacle removal part and a railroad vehicle body structure. The middle beams are connected to a rear part of the obstacle removal part in a vehicle head direction or both a vertical top part and the rear part of the obstacle removal part in the vehicle head direction with a space formed in a vertical top part of a portion extending from an edge part of a side connected to the obstacle removal part of the middle beams in a vehicle rear direction, and are provided with a reinforcement member connected to the obstacle removal part respectively at an inner side and an outer side in a vehicle width direction with respect to one middle beam.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a railway vehicle obstacle deflector and a railway vehicle. [Background technology]

[0002] An obstacle deflector provided at the front of a railway vehicle body frame is described in the following Patent Document 1. Patent Document 1 states that "the obstacle deflector has a main plate portion that is arranged so as to receive obstacles with its surface and has a shape that is convexly curved forward in the direction of travel in a plan view, and a sub-plate portion that protrudes rearward from the main plate portion, and the sub-plate portion is provided continuously along the main plate portion from the convexly curved front end portion of the main plate portion to a pair of left and right end portions rearward in the direction of travel." [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-106684 Summary of the Invention [Problem to be solved by the invention]

[0004] Patent Document 1 describes a railway vehicle obstacle deflector with reinforced obstacle deflector plates that protect the vehicle body from obstacles. However, the obstacle deflector described in Patent Document 1 has a problem in that it is subject to significant deformation when hit by an obstacle, and must be replaced each time.

[0005] The present invention has been made to solve the above problems. That is, one object of the present invention is to provide a lightweight and high-strength obstacle deflector for a railway vehicle by effectively providing a reinforcing member in the obstacle deflector, and a railway vehicle equipped with the same. [Means for solving the problem]

[0006] The obstacle deflector of the present invention for a railway vehicle includes an obstacle deflector provided at the front of the railway vehicle for clearing obstacles; A railway vehicle obstacle deflector having two center sills arranged between the obstacle deflector and the railway vehicle body structure, wherein the center sills are connected to the rear of the obstacle deflector toward the front of the vehicle, or to both the vertical upper part of the obstacle deflector and the rear part of the obstacle deflector toward the front of the vehicle, and a space is formed in the vertical upper part of the part of the center sill that extends toward the rear of the vehicle from the end of the center sill that is connected to the obstacle deflector, and reinforcing members connected to the obstacle deflector are provided on both the outside and inside of each center sill in the vehicle width direction.

[0007] The railway vehicle of the present invention is a railway vehicle equipped with an obstacle deflector, which has an obstacle deflector section provided at the front of the railway vehicle for clearing obstacles, and two center sills provided between the obstacle deflector section and the railway vehicle body structure, and the center sills are connected to the rear of the obstacle deflector section toward the front of the vehicle, or to both the vertical upper part of the obstacle deflector section and the rear of the front of the vehicle, and a space is formed vertically above the part of the center sill that extends toward the rear of the vehicle from the end of the center sill that is connected to the obstacle deflector section, and reinforcing members connected to the obstacle deflector section are provided on both the outside and inside of each center sill in the width direction of the vehicle. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a lightweight and strong obstacle deflector for a railway vehicle. Problems, configurations, and effects other than those described above will become clear from the following description of the embodiment. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a schematic diagram showing the overall structure of a roadblock according to the present invention. [Figure 2] FIG. 2 is a diagram showing the structure of an example of a reinforcing member of the obstacle deflector shown in FIG. [Figure 3] FIG. 3 is a cross-sectional view of the obstacle deflector and the reinforcing member shown in FIG. [Figure 4] FIG. 4 is a diagram showing an example of the structure of a reinforcing member of the obstacle deflector shown in FIG. [Figure 5] FIG. 5 is a diagram showing an example of the structure of a reinforcing member of the obstacle deflector shown in FIG. [Figure 6] FIG. 6 is a diagram showing a modified example of the obstacle deflector according to the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In all the drawings of the embodiments, the same or corresponding parts may be designated by the same reference numerals.

[0011] <<Example>> An embodiment of the present invention will now be described with reference to FIGS.

[0012] FIG. 1 is a schematic diagram showing the overall configuration of an obstacle deflector 10 of the present invention. The obstacle deflector 10 comprises two center sills 2, an obstacle deflector section 1, a reinforcing member 3, and a reinforcing member 4. The obstacle deflector 10 is installed at the front of a railway vehicle and is a device for clearing obstacles such as cars and animals in front of the railway vehicle. Therefore, when clearing an obstacle, a load F1 is applied to the obstacle deflector section 1 of the obstacle deflector 10 in the direction from the front to the rear of the vehicle. Two center sills 2 are installed between the obstacle deflector section 1 and the railway vehicle body structure (not shown).

[0013] The two center sills 2 are each connected to the rear side of the obstacle deflector 1, connecting the obstacle deflector 1 to the railway vehicle body structure (not shown). A space 5 is formed vertically above the connection between the obstacle deflector 1 and the two center sills 2. In other words, the space 5 is formed vertically above the part of the center sill 2 that extends from the end connected to the obstacle deflector 1 towards the rear of the vehicle.

[0014] Specifically, the center beam 2 includes a first center beam section 2a and a second center beam section 2b and a third center beam section 2c that branch off from the first center beam section 2a at a branch section 2a1. The second center beam section 2b extends forward from the branch section 2a1. The third center beam section 2c extends downward from the branch section 2a1 and then forward. The forward-extending portions of the second center beam section 2b and the third center beam section 2c face each other vertically. The front end of the third center beam section 2c is connected to the rearward-facing side of the obstacle deflector 1. A center beam connection section 2d is provided between the two opposing second center beam sections 2b to connect them. The space 5 is surrounded by the two second center beam sections 2b, the reinforcing member 4, the two third center beam sections 2c, and the center beam connection section 2d.

[0015] Each center sill 2 is provided with reinforcing members 3 and 4 on the left and right sides in the vehicle width direction, which are connected to the obstacle deflector 1. Specifically, when viewed from the front, reinforcing member 3 is provided on the right side (outside) of the third center sill portion 2c in the vehicle width direction. Reinforcing member 4 is provided on the left side (inside) of the third center sill portion 2c in the vehicle width direction. Reinforcing member 4 is, for example, a plate-shaped member. Reinforcing member 4 connects two opposing third center sill portions 2c. Reinforcing member 3 may be referred to as the "first reinforcing member," and reinforcing member 4 may be referred to as the "second reinforcing member."

[0016] FIG. 2 is a diagram showing the structure of an example of the reinforcing member 3. The reinforcing member 3 connects the obstacle deflector 1 and the center sill 2. As an example, the reinforcing member 3 is made up of multiple plates such as reinforcing members 3a to 3d. Each of the plates that make up the reinforcing members 3a to 3d is provided with a fillet. In this embodiment shown in FIG. 2, the reinforcing members 3a to 3d (multiple plates) are each independently connected to the obstacle deflector 1 and the center sill 2.

[0017] FIG. 3 is a diagram showing a cross section of the obstacle deflector 1 and the reinforcing member 3. Beams are provided inside the obstacle deflector 1. In this example, as an example, a plurality of plate-shaped beams 6a, 6b, and 6c are provided. Beams 6a, 6b, and 6c are provided parallel to the upper surface of the obstacle deflector 1. Beam 6a is provided below the upper surface of the obstacle deflector 1 and spaced apart from the upper surface, beam 6b is provided below beam 6a and spaced apart from beam 6a, beam 6c is provided below beam 6b and spaced apart from beam 6b, and the lower surface of the obstacle deflector 1 is provided below beam 6c and spaced apart from beam 6c.

[0018] Reinforcing member 3b is provided at a position overlapping with the thickness of beam 6a (i.e., a position overlapping horizontally with the cross section of beam 6a in the thickness direction). Reinforcing member 3c is provided at a position overlapping with the thickness of beam 6b (i.e., a position overlapping horizontally with the cross section of beam 6b in the thickness direction). Reinforcing member 3d is provided at a position overlapping with the thickness of beam 6c (i.e., a position overlapping horizontally with the cross section of beam 6c in the thickness direction).

[0019] Reinforcing member 3b, which is provided at a position overlapping with the plate thickness of beam 6a, is arranged in a range that exceeds the vertical line (dotted line L1) of the end of space 5 from the front of the vehicle toward the rear. Reinforcing members 3c and 3d are arranged in a range that does not exceed the vertical line (dotted line L1) of the end of space 5 from the front of the vehicle toward the rear. Arranging reinforcing members 3b, 3c, and 3d in this manner is preferable from the perspective of reducing weight and material costs while effectively ensuring the effect of mitigating stress concentration.

[0020] The reinforcing member 3b may be arranged within a range not exceeding the vertical line (dotted line L1) at the end of the space 5 from the front of the vehicle to the rear. At least one of the reinforcing members 3c and 3d may be arranged within a range exceeding the vertical line (dotted line L1) at the end of the space 5 from the front of the vehicle to the rear.

[0021] Furthermore, the reinforcing member 3a is provided at a position that overlaps with the thickness of the plate portion that constitutes the upper surface of the obstacle deflector 1 (i.e., at a position that overlaps horizontally with the cross section in the thickness direction of the plate portion), and is arranged within a range that does not exceed the vertical line (dotted line L1) at the end of the space 5 from the front of the vehicle to the rear. Since stress is concentrated on the upper surface of the obstacle deflector 1 and the upper surface of the center sill 2 (upper surface of the third center sill portion 2c), by arranging the reinforcing member 3a so that the welded portions are relatively small, it is possible to increase the strength against stress.

[0022] Next, we will explain the transmission of force when the obstacle deflector 10 of a railway vehicle configured as described above clears an obstacle. When a car, animal, etc. collides with the obstacle deflector 1 of the railway vehicle, a load F1 is applied in the direction from the front to the rear of the vehicle, as shown in Figure 1. The load applied to the surface of the obstacle deflector 1 on the front side of the vehicle is transmitted to the upper surface of the obstacle deflector 1 and beams 6a to 6c shown in Figure 3.

[0023] The upper surface of the obstacle deflector 1 (the plate portion that constitutes the upper surface) and the reinforcing member 3a are connected horizontally, and the beams 6a to 6c and the reinforcing members 3b to 3d are each connected horizontally (preferably, the upper surface of the obstacle deflector 1 (the plate portion that constitutes the upper surface) and the reinforcing member 3a are connected so that the upper and lower surfaces of the plate portion and the upper and lower surfaces of the reinforcing member 3a are positioned on the same plane, respectively. Preferably, the beams 6a to 6c and the reinforcing members 3b to 3d are connected so that the upper and lower surfaces of the beams 6a to 6c and the upper and lower surfaces of the reinforcing members 3b to 3d are positioned on the same plane, respectively).

[0024] As a result, the load is transmitted linearly from the upper surface of the obstacle deflector 1 (the plate portion that constitutes the upper surface) to the reinforcing member 3a, and the load is transmitted linearly from the beams 6a to 6c to the reinforcing members 3b to 3d, preventing stress from concentrating on the surface facing the vehicle of the obstacle deflector 1. In addition, as the reinforcing members 3b to 3d are provided with fillets, the load is dispersed over a wide range of the reinforcing members 3b to 3d (the plates that constitute the reinforcing members 3b to 3d), and the force is absorbed. Note that the reinforcing member 3a may also be provided with fillets.

[0025] The load transmitted to the reinforcing members 3a to 3d is then transmitted to the center sill 2. Next, the load is transmitted to the reinforcing member 4 shown in Fig. 1, and then to the opposite center sill 2, reinforcing members 3a to 3d, and obstacle deflector 1, which are provided on the opposite side in the vehicle width direction, and the load F1 is absorbed by the entire obstacle deflector 10 of the railway vehicle.

[0026] As described above, in the obstacle deflector 10, reinforcing members 3a to 3d are provided at positions overlapping the upper surface of the obstacle deflector 1 and the thickness of the beams 6a to 6c, thereby preventing stress concentration on the rear side of the obstacle deflector 1, and fillets are provided on the reinforcing members 3b to 3d, thereby preventing stress concentration on the reinforcing members 3b to 3d.

[0027] Furthermore, by distributing the load F1 applied to the obstacle deflector 1 to the reinforcing members 3a to 3d and transmitting it to the center sill 2, stress concentration at the end of the space 5 in the center sill 2 from the front to the rear of the vehicle is alleviated. Preferably, reinforcing member 3b is positioned in a range that exceeds the vertical line at the end of the space 5 from the front to the rear of the vehicle, thereby further alleviating stress concentration at the end of the space 5 in the center sill 2 from the front to the rear of the vehicle.

[0028] In addition, by transmitting and absorbing the load through a path connected by the obstacle deflector 1, the reinforcing members 3a to 3d, the center sill 2, and the reinforcing member 4, the load can be absorbed by the entire structure of the obstacle deflector 10 of the railway vehicle in this embodiment, thereby achieving a high-strength structure.

[0029] This allows the thickness of the obstacle deflector 10 of the railway vehicle to be reduced and lightweight materials to be used, thereby contributing to reducing the environmental impact by making the obstacle deflector of the railway vehicle lighter and selecting materials with low environmental impact.

[0030] <<Modifications>> The present invention is not limited to the above-described embodiment, and various modifications can be adopted within the scope of the present invention. Note that the modifications can be combined with each other without departing from the scope of the present invention.

[0031] In the above embodiment, the reinforcing member 3 may be composed of a reinforcing member 3a and a reinforcing member 3e having a structure in which a plurality of plates are connected, as shown in Fig. 4. In this case, from the viewpoint of further reducing stress concentration on the vehicle rear side surface of the obstacle deflector 1, it is preferable that the portions between the upper and lower ends of the connection portion between the reinforcing member 3e and the obstacle deflector 1 overlap horizontally with the cross section in the thickness direction of the beam 6a, the cross section in the thickness direction of the beam 6b, and the cross section in the thickness direction of the beam 6c.

[0032] In the above embodiment, the reinforcing member 3 may be formed of a single plate, such as the reinforcing member 3f, as shown in Fig. 5. In this case, from the viewpoint of further reducing stress concentration on the vehicle rear side surface of the obstacle deflector 1, it is preferable that the portions between the upper and lower ends of the connection portion between the reinforcing member 3f and the obstacle deflector 1 overlap in the horizontal direction with the cross section in the thickness direction of the plate portion constituting the upper surface of the obstacle deflector 1, the cross section in the thickness direction of the beam 6a, the cross section in the thickness direction of the beam 6b, and the cross section in the thickness direction of the beam 6c.

[0033] In the above embodiment, the center sill 2 may be connected to both the vertical upper part of the obstacle deflector 1 and the rear part in the front direction of the vehicle, as shown in Fig. 6. In Fig. 6, two center sills 2 are provided between the obstacle deflector 1 and the body structure of the railway vehicle, and the two center sills 2 are each connected to both the vertical upper part of the obstacle deflector 1 and the side surface on the rear side of the vehicle, connecting the obstacle deflector 1 to the railway vehicle body structure (not shown).

[0034] The present invention can also have the following configuration.

[0035] [1] an obstacle deflector provided at the front of the railway vehicle for clearing obstacles; Two center beams provided between the obstacle deflector and the railway vehicle body structure; A railway vehicle obstacle deflector having The center sill is connected to the rear of the obstacle deflector in the front direction of the vehicle, or to both the vertical upper part of the obstacle deflector and the rear of the vehicle in the front direction, A space is formed in the vertical upper part of the part extending from the end of the center sill on the side connected to the obstacle deflector toward the rear of the vehicle, Reinforcement members connected to the obstacle deflector are provided on the outer and inner sides of one center sill in the vehicle width direction, A railway vehicle obstacle deflector characterized by the above.

[0036] [2] In the obstacle deflector described in [1], The obstacle deflector is provided with a plurality of plate-shaped beams, The reinforcing member provided on the outer side in the vehicle width direction is provided so that at least a part of the cross section in the thickness direction overlaps with either the cross section of the plate portion constituting the upper surface of the obstacle deflector or the cross section of the beam, or the cross section of the plate portion and the cross section of the beam in the horizontal direction. characterized in that Railroad vehicle obstacle clearing devices.

[0037] [3] [1] - [2] In the obstacle deflector of the railway vehicle according to any one of [1] to [2], The reinforcing member includes a fillet. A railway vehicle obstacle deflector characterized by the above.

[0038] [4] In the obstacle deflector of the railway vehicle described in [1], The reinforcing member is A plurality of first reinforcing members provided on the outer side of one of the center sills in the vehicle width direction, and a second reinforcing member provided on the inner side of one of the center sills in the vehicle width direction, Including, One of the plurality of first reinforcing members is At least a part of the cross section in the thickness direction is arranged so as to overlap in the horizontal direction with the cross section of the plate portion constituting the upper surface of the obstacle deflector with respect to the center sill, and is arranged on the center sill within a range not exceeding the vertical line of the end from the front of the vehicle to the rear of the space. A railway vehicle obstacle deflector characterized by the above.

[0039] [5] [4] In the obstacle deflector of a railway vehicle described in The other first reinforcing members other than the one first reinforcing member are At least one of the first reinforcing members is arranged in a range exceeding the vertical line from the front of the vehicle to the rear end of the space, A railway vehicle obstacle deflector characterized by the above.

[0040] [6] [5] In the obstacle deflector of a railway vehicle described in The obstacle deflector is provided with a plurality of plate-shaped beams, At least one of the other first reinforcing members is provided so that at least a portion of a cross section in the thickness direction overlaps with a cross section of the beam. A railway vehicle obstacle deflector characterized by the above.

[0041] [7] A railway vehicle equipped with a roadblock according to any one of [1] to [6]. [Explanation of symbols]

[0042] 1... Obstruction part, 2... Middle beam, 3, 3a, 3b, 3c, 3d, 3e, 3f... Reinforcement member, 4... Reinforcement member, 5... Space, 10... Obstruction remover

Claims

1. an obstacle deflector provided at the front of the railway vehicle for clearing obstacles; Two center beams provided between the obstacle deflector and the railway vehicle body structure; A railway vehicle obstacle deflector having The center sill is connected to the rear of the obstacle deflector in the front direction of the vehicle, or to both the vertical upper part of the obstacle deflector and the rear of the vehicle in the front direction, A space is formed in the vertical upper part of the part extending from the end of the center sill on the side connected to the obstacle deflector toward the rear of the vehicle, Reinforcement members connected to the obstacle deflector are provided on the outer and inner sides of one center sill in the vehicle width direction, A railway vehicle obstacle deflector characterized by the above.

2. The obstacle deflector according to claim 1, The obstacle deflector is provided with a plurality of plate-shaped beams, The reinforcing member provided on the outer side in the vehicle width direction is provided so that at least a part of the cross section in the thickness direction overlaps with either the cross section of the plate portion constituting the upper surface of the obstacle deflector or the cross section of the beam, or the cross section of the plate portion and the cross section of the beam in the horizontal direction. characterized in that Railroad vehicle obstacle clearing devices.

3. The obstacle deflector for a railway vehicle according to claim 1, The reinforcing member includes a fillet. A railway vehicle obstacle deflector characterized by the above.

4. The obstacle deflector for a railway vehicle according to claim 1, The reinforcing member is a plurality of first reinforcing members provided on the outer side of one of the center sills in the vehicle width direction; and a second reinforcing member provided on the inner side of one of the center sills in the vehicle width direction; Including, One of the plurality of first reinforcing members is At least a part of the cross section in the thickness direction is arranged so as to overlap in the horizontal direction with the cross section of the plate portion constituting the upper surface of the obstacle deflector with respect to the center sill, and is arranged on the center sill within a range not exceeding the vertical line of the end from the front of the vehicle to the rear of the space. A railway vehicle obstacle deflector characterized by the above.

5. The obstacle deflector for a railway vehicle according to claim 4, The other first reinforcing members other than the one first reinforcing member are At least one of the first reinforcing members is arranged in a range exceeding a vertical line from the front end of the vehicle to the rear end of the space, A railway vehicle obstacle deflector characterized by the above.

6. The obstacle deflector for a railway vehicle according to claim 5, The obstacle deflector is provided with a plurality of plate-shaped beams, At least one of the other first reinforcing members is provided so that at least a portion of a cross section in a thickness direction overlaps a cross section of the beam. A railway vehicle obstacle deflector characterized by the above.

7. A railway vehicle equipped with a roadblock, The obstacle deflector is an obstacle deflector provided at the front of the railway vehicle for clearing obstacles; Two center beams provided between the obstacle deflector and the railway vehicle body structure; and The center sill is connected to the rear of the obstacle deflector in the front direction of the vehicle, or to both the vertical upper part of the obstacle deflector and the rear of the vehicle in the front direction, A space is formed in the vertical upper part of the part extending from the end of the center sill on the side connected to the obstacle deflector toward the rear of the vehicle, Reinforcement members connected to the obstacle deflector are provided on the outer and inner sides of one center sill in the vehicle width direction, A railway vehicle characterized by:

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