JP6718486B2 - Railway vehicle snow accumulation prevention device - Google Patents

Description

The present invention relates to a snow accumulation prevention device for a railway vehicle.

In railway cars, in order to prevent snow from accumulating under the floor, by installing a plurality of streamline rectifying members inside the void in the bogie space under the floor, it is possible to prevent a flow containing snow from entering the bogie interior. A technique for suppressing is known (for example, see Patent Document 1).

JP, 2005-153755, A

When a vehicle with multiple streamlined flow control members installed inside such a gap runs in a snowfall area, it is possible to prevent snow from entering the inside of the bogie, but at the corners of the bogie arrangement space (sides of the end block). Snow flowing from the traveling direction reaches a dead space surrounded by the portion and the inner surface of the trolley-side cover and hidden by the trolley-side cover in a side view, and the snow adheres to the end blocking plate. In particular, when the end blocking plate is arranged perpendicular to the air flow, the snow that flows from the vehicle collides with the end blocking plate, which causes the accumulation of snow and the accumulation of snow on the end blocking plate. Grow to form a large canopy. A large snow cane has a large weight, and if it cannot support the weight and falls and collides with a vehicle or track equipment, it may adversely affect the vehicle or track equipment. Therefore, it is necessary to take measures to prevent the adverse effects of falling snow canopies.

Therefore, it is an object of the present invention to reduce the amount of snow that accumulates at the corners of the bogie arrangement space and prevent adverse effects on the vehicle, track equipment, etc. due to the falling of the snow accumulated at the corners of the bogie arrangement space. ..

A snow accumulation prevention device for a railroad vehicle according to an aspect of the present invention includes a bottom cover plate extending horizontally facing the ground on one side in the vehicle longitudinal direction of a bogie, and an upper part from an end of the bottom cover plate on the bogie side. And a trolley side having an end blocking plate that extends toward the trolley and faces the trolley in the vehicle longitudinal direction, and a trolley-side cover that covers the upper portion of the trolley from the vehicle width direction outer side and that has a downward protrusion that is adjacent to the end blocking plate. A snow accumulation prevention device arranged in a bogie arrangement space of a railroad vehicle, comprising a cover, wherein the snow accumulation prevention device is arranged so as to face the bogie at a corner of the bogie arrangement space, A main inclined surface inclined toward the dolly, and a position exposed downward from the trolley-side cover when viewed from the outside in the vehicle width direction and provided outside the main inclined surface in the vehicle width direction. A sub-inclined surface that inclines in a direction away from the dolly toward the.

According to the above configuration, the main slope of the snow accumulation prevention device is inclined so as to approach the end edge of the downward protruding portion of the trolley-side cover as it goes outward in the vehicle width direction. Since it flows along the sub-slope, snow accumulation can be suppressed. In addition, the dead space hidden in the trolley-side cover when viewed from the outside in the vehicle width direction at the corners of the trolley placement space is reduced. Therefore, it is possible to suppress the snow that passes through the side of the bogie and reaches the corner of the bogie arrangement space while the vehicle is traveling, and accumulates in the dead space. Moreover, the main inclined surface is inclined toward the center side in the vehicle width direction, away from the bogie, so that the snow accumulation prevention device can be prevented from interfering with the bogie when the bogie turns. Even when the snow accumulation prevention device is exposed downward from the trolley-side cover when viewed from the outside in the vehicle width direction, the snow that passes through the side of the trolley and reaches the bottom of the snow accumulation prevention device while the vehicle is traveling has a secondary inclination. The surface guides the vehicle to the outside in the vehicle width direction, and snow accumulation on the lower part of the snow accumulation prevention device can be suppressed.

According to the present invention, it is possible to significantly reduce the amount of snow accumulated at the corners of the carriage arrangement space, and to prevent adverse effects on the vehicle, track equipment, etc. due to the fall of the snow accumulated at the corners of the carriage arrangement space.

It is a side view of a railcar provided with the snow accumulation prevention device concerning a 1st embodiment. It is a top view explaining arrangement|positioning of the snow accumulation prevention apparatus in the trolley|bogie arrangement space of the railway vehicle shown in FIG. It is the perspective view which looked at the snow accumulation prevention apparatus shown in FIG. 1 from diagonally downward. (A) is a top view of the snow accumulation prevention device, (B) is a front view of the snow accumulation prevention device, (C) is a side view of the snow accumulation prevention device. It is the perspective view seen from the slanting lower part of the snow accumulation prevention device concerning a 2nd embodiment. It is the perspective view seen from the slanting lower part of the snow accumulation prevention device concerning a 3rd embodiment. It is the perspective view seen from the slanting lower part of the snow accumulation prevention device concerning a 4th embodiment.

Hereinafter, embodiments will be described with reference to the drawings. In the following description, the traveling direction of the vehicle is defined as the vehicle longitudinal direction (front-rear direction), and the lateral direction orthogonal thereto is defined as the vehicle width direction (lateral direction).

(First embodiment)
FIG. 1 is a side view of a railway vehicle 1 including a snow accumulation prevention device 10 according to the first embodiment. FIG. 2 is a plan view for explaining the arrangement of the snow accumulation prevention device 10 in the bogie arrangement space S of the railway vehicle 1 shown in FIG. As shown in FIG. 1, a railway vehicle 1 includes a bogie 2 and a vehicle body 3 supported by the bogie 2 from below via an air spring 4. Under the floor of the vehicle body 3, the underfloor equipment 5 (for example, a transformer, a converter, a storage battery, etc.) is mounted on one side and the other side of the bogie 2 in the vehicle longitudinal direction. The underfloor equipment 5 is suspended and supported by an underframe (not shown) of the vehicle body 3.

The vehicle body 3 is provided on one side and the other side of the bogie 2 in the vehicle longitudinal direction, and includes a bottom closing plate 6 that covers the bottom surface of the underfloor equipment 5 from below. The bottom block 6 extends horizontally facing the ground G on which the rail R is installed. The bottom closing plate 6 is arranged within the vehicle limit. The vehicle limit refers to the upper and lower limits and the left and right limits that the contour line of the vehicle stationary on a horizontal straight track must not exceed.

The vehicle body 3 includes an end closing plate 7 connected to an end of the bottom closing plate 6 on the trolley 2 side. The end blocking plate 7 extends upward from the end of the bottom blocking plate 6 on the trolley 2 side, and faces the trolley 2 in the vehicle longitudinal direction. That is, the pair of end closing plates 7 arranged on both sides of the carriage 2 in the vehicle longitudinal direction form the carriage arrangement space S. In the present embodiment, the end block 7 is arranged so as to extend in the vertical direction.

The vehicle body 3 includes a pair of left and right truck-side covers 8 that cover the upper portion of the truck 2 from the outside in the vehicle width direction. That is, the trolley-side cover 8 closes the trolley placement space S from the outside in the vehicle width direction. The trolley-side cover 8 extends in the vehicle longitudinal direction and is connected to one end of the end blocking plate 7 in the vehicle width direction and the other end of the end blocking plate 7 in the vehicle width direction. The trolley-side cover 8 is provided on both sides of the trolley 2 at the lower end of the trolley-side cover 8 at substantially the center in the height direction of the trolley 2, and on both sides of the center portion 8a in the vehicle longitudinal direction. 7 and a downward protruding portion 8b adjacent to 7. The downward protrusion 8b has a larger downward protrusion amount than the central portion 8a. In the present embodiment, the downward protruding portion 8b has a shape in which the downward protruding amount gradually increases from the central portion 8a toward the end closing plate 7. For example, the lower end of the downward protruding portion 8b of the trolley-side cover 8 is located at the same height as the lower surface of the bottom blocking plate 6.

As shown in FIGS. 1 and 2, a snow accumulation prevention device 10 is arranged at a corner of the carriage arrangement space S. That is, in the snow accumulation prevention device 10, a corner-shaped space formed between the end of the end blocking plate 7 in the vehicle width direction and the end of the trolley-side cover 8 in the vehicle longitudinal direction (downward protruding portion 8b) ( It is arranged in the corner of the carriage arrangement space S). The snow accumulation prevention device 10 occupies a corner-shaped space of the carriage arrangement space S so that snow flowing from the traveling direction does not accumulate in the corner-shaped space hidden by the lower protruding portion 8b of the carriage-side cover 8 in a side view. It is a member.

FIG. 3 is a perspective view of the snow accumulation prevention device 10 shown in FIG. 4A is a top view of the snow accumulation prevention device 10, FIG. 4B is a front view of the snow accumulation prevention device 10 as seen from the vehicle longitudinal direction, and FIG. 4C is a vehicle side of the snow accumulation prevention device 10. It is the side view seen from the direction. As shown in FIGS. 3 and 4(A) to (C), in the present embodiment, the snow accumulation prevention device 10 is a box separate from the end closing plate 7, and is a vehicle of the end closing plate 7. It is attached to the surface of the outer end in the width direction on the side of the truck 2. The snow accumulation prevention device 10 may be formed integrally with the end blocking plate 7.

The snow accumulation prevention device 10 is a box body having a back surface 11, a main inclined surface 12, a side surface 13, a lower surface 14, an upper surface 15 and a sub-inclined surface 16. The rear surface 11 abuts on a surface of the end closing plate 7 on the trolley 2 side of an outer end portion in the vehicle width direction. The main inclined surface 12 is arranged so as to face the carriage 2 (see FIG. 2). The main inclined surface 12 is inclined so as to be away from the back surface 11 as it goes outward in the vehicle width direction when viewed from above. That is, the main inclined surface 12 is inclined with respect to an imaginary plane perpendicular to the longitudinal direction of the vehicle so as to approach the trolley 2 (see FIG. 2) toward the outer side in the vehicle width direction. In other words, the normal line of the main inclined surface 12 is inclined inward in the vehicle width direction with respect to the vehicle longitudinal direction (see FIG. 2 ). Further, at least the lower half of the main inclined surface 12 is inclined such that its normal line is directed obliquely downward. The normal line of the main inclined surface 12 may be oriented in the horizontal direction. In the present embodiment, the main inclined surface 12 has the largest area among the surfaces forming the snow accumulation prevention device 10.

The side surface 13 connects the outer edges of the rear surface 11 and the main inclined surface 12 in the vehicle width direction, and faces outward in the vehicle width direction. The side surface 13 has a shape along the inner surface of a portion of the trolley-side cover 8 (see FIGS. 1 and 2) adjacent to the snow accumulation prevention device 10. In the present embodiment, the trolley-side cover 8 has a shape that faces inward in the vehicle width direction as it goes downward, and the side surface 13 of the snow accumulation prevention device 10 also has a similar shape. The side surface 13 has a work opening 13a used when the work of attaching the snow accumulation prevention device 10 to the end block 7 is performed. The work opening 13a is closed by a lid 17 so that it can be opened and closed. The lower surface 14 is a horizontal plane that closes the space between the back surface 11 and the main inclined surface 12 from below, and faces the ground G. The upper surface 15 is a horizontal surface that closes the space between the rear surface 11 and the main inclined surface 12 from above.

The sub inclined surface 16 is provided outside the main inclined surface 12 in the vehicle width direction and below the side surface 13, and connects the main inclined surface 12 to the back surface 11. The sub-inclined surface 16 is arranged at a position exposed downward from the downward protruding portion 8b of the trolley-side cover 8 when viewed from the outside in the vehicle width direction (see FIG. 4C). The sub-inclined surface 16 is inclined with respect to an imaginary plane perpendicular to the vehicle longitudinal direction in a direction away from the dolly 2 (see FIG. 1) toward the vehicle width direction outer side. That is, the normal line of the sub-sloping surface 16 is inclined outward in the vehicle width direction with respect to the vehicle longitudinal direction. Further, the sub-sloping surface 16 is inclined so that its normal line is directed obliquely downward. The lower end of the sub inclined surface 16 is connected to the lower surface 14.

The vehicle width direction inner end portion 11a of the rear surface 11 projects inward in the vehicle width direction with respect to the main inclined surface 12 in a front view seen from the vehicle longitudinal direction. A fixing hole H (fixing portion) is formed in the vehicle width direction inner end portion 11a. In the installation work of the snow accumulation prevention device 10, the fastener is inserted into the fixing hole H of the vehicle-widthwise inner end portion 11a of the rear surface 11, and the fixing hole formed in the central portion of the rear surface 11 through the above-mentioned work opening 13a. The snow accumulation prevention device 10 is attached to the end part closing plate 7 by inserting a fastener into (not shown).

According to the configuration described above, the main inclined surface 12 of the snow accumulation prevention device 10 inclines so as to approach the end edge of the downward protruding portion 8b of the bogie side cover 8 as it goes outward in the vehicle width direction. The dead space hidden in the trolley-side cover 8 when viewed from the outside in the vehicle width direction at the corners of the space S is reduced. Therefore, it is possible to prevent snow that passes through the side of the bogie 2 and reaches the corners of the bogie arrangement space S from accumulating in the dead space while the vehicle is traveling. Moreover, since the main inclined surface 12 inclines in a direction away from the bogie 2 toward the center side in the vehicle width direction, snow flowing from the traveling direction hits the main inclined surface 12 and then heads inward in the vehicle width direction. Therefore, snow accumulation can be prevented, and the snow accumulation prevention device 10 can be prevented from interfering with the trolley 2 when the trolley 2 turns.

In addition, the snow flowing from the traveling direction is directed to the outer side in the vehicle width direction by the sub-slope 16 of the snow accumulation prevention device 10. Therefore, even if the snow accumulation prevention device 10 is configured to be exposed downward from the trolley-side cover 8 when viewed from the outside in the vehicle width direction, the snow accumulation prevention device 10 passes through the side of the trolley 2 while the vehicle is traveling and is located below the snow accumulation prevention device 10. The snow that arrives is guided to the outside in the vehicle width direction by the sub-slope 16, and snow accumulation on the lower part of the snow accumulation prevention device 10 can also be suppressed. As described above, it is possible to significantly reduce the amount of snow accumulated at the corners of the trolley placement space S, and prevent the adverse effects of falling snow accumulated at the corners of the trolley placement space S.

Further, since the normals to the main inclined surface 12 and the sub-inclined surface 16 are directed obliquely downward, the falling of the snow adhering to the surfaces 12 and 16 is promoted before the snow grows, and the heavy snow is further prevented from falling. It can be preferably prevented. Further, since the lower surface 14 of the snow accumulation prevention device 10 is arranged so as to be continuous with the lower surface of the bottom portion closing plate 6, noise caused by traveling wind hitting the boundary between the snow accumulation prevention device 10 and the bottom portion closing plate 6 is reduced. In addition to the prevention of snow, it is possible to prevent snow from accumulating between the snow accumulation prevention device 10 and the bottom cover plate 6. Moreover, since the snow accumulation prevention device 10 is a separate body from the end block 7 and the trolley-side cover 8, it can be easily applied to an existing vehicle.

(Second embodiment)
FIG. 5 is a perspective view of the snow accumulation prevention device 110 according to the second embodiment as seen from diagonally below. The same components as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted. As shown in FIG. 5, in the snow accumulation prevention device 110 of the second embodiment, the main sloping surface 112 and the sub sloping surface 116 are concavely curved. That is, the main sloping surface 112 and the sub sloping surface 116 are curved so as to be recessed toward the end closing plate 7 side (the side away from the carriage 2) when viewed from above.

With such a configuration, the snow that has reached the snow accumulation prevention device 110 while the vehicle is traveling is smoothly guided by the main slope 112 and the sub slope 116, so that snow accretion is suppressed and noise due to traveling wind is reduced. it can. The rest of the configuration is the same as that of the above-described first embodiment, and the description thereof is omitted. Further, only one of the main inclined surface 112 and the sub inclined surface 116 may be a concave surface.

(Third Embodiment)
FIG. 6 is a perspective view of the snow accumulation prevention device 210 according to the third embodiment as seen from obliquely below. As shown in FIG. 6, in the snow accumulation prevention device 210 of the third embodiment, at least the lower end portion of the main inclined surface 12 is provided with a protruding surface 218 that protrudes in a taper shape toward the carriage 2 (see FIG. 1). Has been. That is, the protruding surface 218 extends from at least one end of the main inclined surface 12 in the vehicle width direction to the other end. For example, the protruding surface 218 is a curved surface protruding toward the trolley 2 side when viewed from the side. In the example of FIG. 6, the protruding surface 218 is provided so as to hang from the lower end portion of the main inclined surface 12 to the lower end portion of the end portion closing plate 7 near the center in the vehicle width direction. Specifically, the protruding surface 218 includes a first portion 218a provided at a lower end portion of the main inclined surface 12, and a trolley at the lower end portion of the end portion closing plate 7 extending from the first portion 218a toward the vehicle width direction center side. The second portion 218b arranged on the surface on the second side.

According to such a configuration, the presence of the projecting surface 218 causes the snow accumulation prevention device 210 to occupy more of the lower space of the corner or center of the trolley disposition space S. In addition to the snow reaching the lower part of the snow accumulation prevention device 210, it is possible to suppress the snow that reaches the lower part of the snow accumulation prevention device 210 through the bottom of the carriage 2 from adhering to the snow accumulation prevention device 210 and growing. The rest of the configuration is the same as that of the above-described first embodiment, and the description thereof is omitted. In addition, the protruding surface 218 that protrudes in a taper shape toward the trolley 2 (see FIG. 1) may be formed only on the lower end portion of the main inclined surface 12.

(Fourth Embodiment)
FIG. 7 is a perspective view of the snow accumulation prevention device 310 according to the fourth embodiment as seen from diagonally below. As shown in FIG. 7, the snow accumulation prevention device 310 of the fourth embodiment is formed integrally with the end closing plate 307. Specifically, the end closing plate 307 has a central plate portion 309, a main inclined surface 312, a sub inclined surface 316, and a lower surface 314. The center plate portion 309 is located at the center of the end blocking plate 307 in the vehicle width direction and faces the carriage 2 in the vehicle longitudinal direction. The main inclined surface 312 is adjacent to the outside of the center plate portion 309 in the vehicle width direction. The main inclined surface 312 is inclined with respect to an imaginary plane perpendicular to the vehicle longitudinal direction so as to approach the trolley 2 (see FIG. 2) toward the vehicle width direction outer side.

The sub-sloping surface 316 is provided on the lower side of the main slanting surface 312 in the vehicle width direction outer side, and is arranged at a position exposed downward from the lower protruding portion 8b of the truck side cover 8 (see FIG. 1) when viewed from the vehicle width direction outer side. To be done. The sub-inclined surface 16 is inclined with respect to an imaginary plane perpendicular to the vehicle longitudinal direction in a direction away from the dolly 2 (see FIG. 1) toward the vehicle width direction outer side. The lower surface 314 connects the lower end of the main inclined surface 312 and the lower end of the sub inclined surface 316. That is, the main inclined surface 312, the sub inclined surface 316 and the lower surface 314 of the end closing plate 307 correspond to the main inclined surface 12, the sub inclined surface 16 and the lower surface 14 of the first embodiment. Ends of the main inclined surface 312 and the sub inclined surface 316 on the outer side in the vehicle width direction are abutted against the trolley-side cover 8 (see FIG. 1 ).

With such a configuration, it is not necessary to prepare the snow accumulation prevention device 310 separately from the end blocking plate 307, and thus it is possible to prevent an increase in the number of parts. The snow accumulation prevention device 310 may be formed integrally with the trolley-side cover 8.

It should be noted that the present invention is not limited to the above-described embodiment, and the configuration thereof can be changed, added, or deleted. For example, a part of the configuration in one embodiment can be separated from other configurations in the embodiment and arbitrarily extracted, and a part of the configuration in one embodiment is applied to the other embodiment. You may.

1 Rail Vehicle 6 Bottom Blocking Plate 7,307 End Blocking Plate 8 Bogie Side Cover 8b Lower Projecting Part 10,110,210,310 Snow Accumulation Prevention Device 12,112,312 Main Slope 14,314 Bottom Surface 16,116,316 Sub inclined surface 218 Projecting surface H Fixing hole (fixing part)
S trolley placement space

Claims (8)

A bottom closing plate that horizontally extends so as to face the ground on one side in the vehicle longitudinal direction of the bogie, and an end closing plate that extends upward from the end of the bottom closing plate on the bogie side and faces the bogie in the vehicle longitudinal direction. And a trolley-side cover that covers the upper portion of the trolley from the outside in the vehicle width direction and has a downward protrusion that is adjacent to the end closing plate, and is disposed in the trolley-carrying space of the railway vehicle. A snow accumulation prevention device,
A main inclined surface that is arranged so as to face the dolly at a corner of the dolly arrangement space, and that is inclined toward the outside in the vehicle width direction toward the dolly.
When viewed from the outside in the vehicle width direction, it is arranged at a position exposed downward from the trolley-side cover and is provided outside the main inclined surface in the vehicle width direction. A snow accumulation prevention device for a railway vehicle, comprising: an inclined surface. The snow accumulation prevention device for a railway vehicle according to claim 1, wherein at least one of the main inclined surface and the sub-inclined surface has a surface that faces obliquely downward. Further comprising a lower surface facing the ground,
The snow accumulation prevention device for a railway vehicle according to claim 1, wherein the lower surface is arranged so as to be continuous with the lower surface of the bottom blocking plate. The snow accumulation prevention device for a railway vehicle according to any one of claims 1 to 3, wherein a projecting surface that projects in a taper shape in a direction toward the trolley is provided at a lower end portion of the main inclined surface. The snow accumulation prevention device for a railway vehicle according to claim 4, wherein the projecting surface extends from a lower end of the main inclined surface toward a lower end of the end closing plate in a vehicle width direction. The snow accumulation prevention device for a railway vehicle according to any one of claims 1 to 5, wherein at least one of the main inclined surface and the sub inclined surface is concavely curved. Further comprising a fixing portion for fixing to the end blocking plate,
The snow accumulation prevention device for a railway vehicle according to any one of claims 1 to 6, wherein the main sloped surface and the sub sloped surface are separate from the end blocking plate and the trolley-side cover. The snow accumulation prevention device for a railway vehicle according to any one of claims 1 to 6, wherein the main sloped surface and the sub sloped surface are integrally formed with the end blocking plate or the trolley-side cover.

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