JP6099371B2 - Railway vehicle - Google Patents

Description

  The present invention relates to a railway vehicle, and more particularly, to a railway vehicle having a configuration in which a space between a lower portion of a vehicle body for arranging a carriage, a carriage frame, and wheels of the carriage is closed.

  In a railway vehicle, devices such as control devices, switchboards, conversion devices, or device boxes that store them are arranged at the lower part of the vehicle body, and a plurality of device boxes are arranged at intervals in the vehicle longitudinal direction. A cart is arranged in a space formed between the device and the device or the device box in the longitudinal direction of the vehicle.

  Conventionally, an obstacle such as a ballast (crushed stone) may hit the lower part of the vehicle body when the railway vehicle travels. In particular, when a railway vehicle travels in a cold region, snow may adhere to the lower part of the vehicle body, the snow adhering to the lower part of the vehicle body melts, and when the snow falls to the ground, the ballast jumps up and the ballast hits the lower part of the vehicle body There is a case.

  At this time, in order to prevent damage to equipment or equipment boxes arranged in the lower part of the vehicle body that may be caused by ballast collision, a railway vehicle is proposed in which a closing plate is provided in the space of the carriage in the space (for example, a patent). Reference 1). In the railway vehicle described in Patent Document 1, in order to prevent damage to the equipment and prevent snow from falling on the closing plate, it is 1 to 3 degrees from the vertical and horizontal in the vehicle traveling direction of the space where the carriage is arranged. A closing plate made of an inclined surface inclined at a predetermined angle is provided (see FIG. 1 of Patent Document 1).

JP 2004-196054 A

  By the way, the snowfall on the closing plate is mainly caused by snow from below the space portion, such as snow sprayed at a speed relative to the traveling direction of the vehicle or snow bounced up by the wheels. If it does so, in invention of patent document 1, it is inadequate for prevention of the snow accretion to the vehicle body lower part.

  Further, in the invention of Patent Document 1, there is a problem that air enters from below the space when the railway vehicle travels, the air hits a closing plate, and air resistance is generated in the traveling direction of the railway vehicle.

  On the other hand, when the railway vehicle is not running, particularly during maintenance, it is necessary for an operator to enter the gap between the space and the carriage in order to maintain the equipment stored in the equipment box.

  An object of the present invention is to provide a railway vehicle that can easily perform maintenance of the railway vehicle, and is excellent in preventing damage to equipment and reducing snowfall.

The railway vehicle according to the present invention is provided with a carriage having wheels, a space portion provided at a lower portion of the vehicle body of the railway vehicle, and a closing device disposed in the longitudinal direction of the space portion in the vehicle longitudinal direction,
The closing device includes a first closing member extending in a vehicle vertical direction, and the first closing member extending in a vehicle longitudinal direction from a lower end of the first closing member during travel of the railway vehicle. And a second closing member that is movable so as to form the gap when not running.

  According to this configuration, the first blocking member and the second blocking member prevent damage to the equipment due to ballast, etc., and the second blocking member blocks the lower surface of the space portion, so that when the railway vehicle is running, Air is prevented from entering the space, and air resistance (running resistance) in the vehicle traveling direction is reduced. In addition, the second closing member blocks the lower surface of the space portion, thereby suppressing the inflow of snow from below the space portion and suppressing snow accumulation on the lower portion of the vehicle body. Further, since the second closing member is movable, a gap between the space and the wheel can be formed when the railway vehicle is not traveling, so that an operator can enter the gap and perform maintenance of equipment and the like.

  As described above, according to the present invention, when a railway vehicle is traveling, it is possible to suppress snow accretion while preventing damage to equipment due to ballast or the like, and to reduce running resistance. However, maintenance of the equipment can be easily performed.

It is the side view to which the vehicle body lower part of the railcar of a first embodiment was expanded. It is a perspective view showing the composition outline of the closure device of a first embodiment. (A) is a side view which shows the outline of a structure of the closure apparatus at the time of driving | running | working of a railway vehicle. (B) is a side view showing a schematic configuration of the closing device in the unlocked state. (C) is a side view showing a schematic configuration of the closing device when the railway vehicle is not running. (A) is a perspective view which shows the 2nd closing member of the closing device. (B) is a perspective view which shows the structure of the lock | rock of a closing device, and a lock | rock periphery. It is the side view to which the vehicle body lower part of the rail vehicle of 2nd embodiment was expanded. It is a perspective view which shows the structure outline of the closing apparatus of 2nd embodiment. (A) is a side view which shows the outline of a structure of the closure apparatus at the time of driving | running | working of a railway vehicle. (B) is a side view showing a schematic configuration of the closing device in the unlocked state. (C) is a side view showing a schematic configuration of the closing device when the railway vehicle is not running. (A) is a perspective view which shows the 2nd closing member of the closing device. (B) is a perspective view which shows the structure of the guide rail of a closing device, and a guide rail periphery.

  Hereinafter, although the embodiment concerning the present invention is described based on a drawing, the present invention is not limited to the following embodiment.

<First embodiment>
[1. Railcar configuration]
As shown in FIG. 1, the railway vehicle of the present embodiment includes a closing device 2, a carriage 3, and a space portion 4 at the lower part of a vehicle body 1. The carriage 3 has wheels 31 and is disposed in the space portion 4. In a state where the carriage 3 is arranged in the space portion 4, two gaps 41 are formed in the X direction (vehicle longitudinal direction) between the wheel 31 and the space portion 4. The closing devices 2 are arranged in the gaps 41, respectively.

[2. Structure of closing device]
[2-1. overall structure]
As shown in FIG. 2, three closing devices 2 are arranged side by side in each gap 41 in the Z direction (vehicle width direction). This is only an example, and the closing device 2 may be elongated in the Z direction, and the closing devices 2 may be arranged one by one in each gap 41.

  As shown in FIG. 3A, the closing device 2 includes a closing plate 21 (first closing member), a fin 22 (second closing member), a hinge 23 connecting these, a mounting metal 24, And a lock 25. The lower portion of the closing plate 21 and the upper surface portion 22a of the fin 22 are connected by a hinge 23, and the fin 23 can be rotated in the Y direction (the vehicle vertical direction) with respect to the closing plate 21 by the hinge 23. Further, an attachment metal 24 is disposed below the bottom surface portion 22b of the fin 22 via an elastic member 26, and the attachment metal 24 holds the fin 22 so that the fin 22 can maintain a horizontal state. Further, the elastic member 26 absorbs the load in the Y direction generated on the fin 22.

  The attachment 24 has a portion for holding the fins 22 and a portion extending further to the inner side (device side) of the closing plate 21, and a lock 25 is attached thereto. Further, the attachment 24 is provided with a through hole 24a so as not to prevent the rotation of a dead bolt 25b of the lock 25 described later.

[2-2. Structure of closing plate]
As shown in FIG. 3A, the closing plate 21 is a metallic flat plate extending in the Y direction. The closing plate 21 is fixed to a lower end portion 11 of the vehicle body that forms the space portion 4 with bolts (not shown).

[2-3. Fin structure]
As shown in FIG. 3A, the fin 22 has a substantially triangular hollow shape extending in the X direction in a side view, and is directed toward the closing plate 21 from the horizontal bottom surface portion 22b and the end portion of the bottom surface portion 22b. It has the upper surface part 22a which inclines upwards, and the connection surface part 22c which connects the bottom face part 22b and the upper surface part 22a. The bottom surface portion 22b has a recess on the closing plate 21 side, and the elastic member 26 and the mounting metal 24 described above are accommodated in the recess in a horizontal state, so that the bottom surface portion 22b and the bottom surface of the mounting metal 24 have substantially the same height.

  Further, as shown in FIGS. 3A and 4A, the upper surface portion 22a of the fin 22 extends to the closing plate 21 side with respect to the connection surface portion 22c, and a lock 25 (to be described later) is formed on the extended portion. Two fitting holes 22e into which the dead bolts 25b are fitted are provided. Also, two similar fitting holes 22d are provided in the connection surface portion 22c.

  The fins 22 are made of an elastic material such as rubber, and absorb the load in the Y direction caused by snow, ballast, and the like together with the elastic member 26. The fins 22 may be made of, for example, a resin material such as FRP or a metal material such as stainless steel in addition to an elastic material such as rubber. Further, the shape of the fin 22 is not limited to a hollow shape having a substantially triangular shape in a side view, and may be a solid shape or a flat plate shape. Moreover, in order to prevent the accumulation of water inside the fin 22, a drain hole may be provided in the upper surface portion 22 a and the bottom surface portion 22 b of the fin 22.

[2-4. Structure of lock]
As shown in FIGS. 3A and 4B, the lock 25 is a rotary lock and includes a main body 25a, a dead bolt 25b, and a key hole 25c. By inserting a key (not shown) into the key hole 25c and rotating the key, the dead bolt 25b rotates. The lock 25 is not limited to a rotary lock, and other locks having a dead bolt may be used. In addition, two locks 25 are arranged on the closing device 2 at a predetermined interval in the Z direction, and each lock 25 is attached to a height at which the dead bolt 25b fits into the fitting holes 22d and 22e of the fin 22. 24 is fixed.

[3. Operation of the closing device]
Next, the operation of the closing device 2, that is, the operation of the fin 22 will be described with reference to FIGS. 3 and 4. FIG. 3A is a side view showing a schematic configuration of the closing device when the railway vehicle is traveling, and FIG. 3B is a side view showing a schematic configuration of the closing device in a state where the lock is released. FIG. 3C is a side view showing a schematic configuration of the closing device when the railway vehicle is not running.

  As shown in FIG. 3A, the fins 22 are used in a horizontal state when the railway vehicle is traveling. At this time, in order to hold the fins 22 in a horizontal state, the dead bolts 25b of the locks 25 are fitted and fixed to the two fitting holes 22d, respectively (see FIG. 3A). Thereby, the fin 22 is held in a horizontal state, and the fin 22 closes the lower surface of the gap 41 between the space portion 4 and the wheel 31.

  On the other hand, as shown in FIG. 3C, when the railway vehicle is not running (for example, during maintenance), the fins 22 are set in a substantially vertical state to secure a maintenance space. Specifically, when the fin 22 is in a horizontal state, a key is inserted into the key hole 25c of the lock 25, and the dead bolt 25b is rotated to remove the dead bolt 25b from the fitting hole 22d (see FIG. 3B). . At this time, since the fin 22 is in a rotatable state, the fin 22 is rotated from the horizontal state to a substantially vertical state (see FIG. 3C), and the dead bolt 25b of the lock 25 is rotated again. The dead bolt 25b is fitted and fixed in the fitting hole 22e (see FIGS. 3A and 4A). Thereby, the fin 22 is held in a substantially vertical state, and a gap 41 between the space portion 4 and the wheel 31 is formed.

[4. Effects of this embodiment]
As described above, according to the railway vehicle including the closing device 2 of the present embodiment, damage to equipment due to ballast or the like is prevented by the closing plate 21 and the fins 22 when the railway vehicle is traveling. Further, since the fins 22 block the lower surface of the gap 41 between the wheel 31 and the space portion 4, the inflow of snow from below the gap 41 and the inflow of air from below the gap 41 are suppressed, and the running resistance is reduced. In addition, when the railway vehicle is not traveling, the gap 22 is formed with the fins 22 in a substantially vertical state, so that an operator can easily enter the gap 41 and perform maintenance of equipment and the like.

<Second embodiment>
[1. Railcar configuration]
As shown in FIG. 5, the railway vehicle according to the present embodiment includes a closing device 120, a carriage 130, and a space 140 at the lower part of the vehicle body 110. The carriage 130 has wheels 131 and is disposed in the space 140. In a state where the carriage 130 is disposed in the space 140, two gaps 141 are formed between the wheel 131 and the space 140 in the X direction (vehicle longitudinal direction). The closing devices 120 are respectively disposed in the gaps 141.

[2. Structure of closing device]
[2-1. overall structure]
As shown in FIG. 6, three closing devices 120 are arranged side by side in each gap 141 in the Z direction (vehicle width direction). This is only an example, and the closing device 120 may be elongated in the Z direction, and one closing device 2 may be disposed in each gap 141.

  As shown in FIG. 7A, the closing device 120 includes a closing plate 121 (first closing member), a fin 122 (second closing member), a guide rail 123, a mounting bracket 124, and a lock 125. And have. The fins 122 are attached to a guide rail 123 disposed below the closing plate 121 so as to be slidable in the X direction.

  The mounting bracket 124 is substantially L-shaped in a side view, and includes a portion extending in the Y direction (the vehicle vertical direction) and a portion extending inward of the closing plate 121 in the X direction. A lock 125 is attached to the extending portion. Further, the attachment 124 is provided with a through hole 124a through which the fin 122 enters and exits.

[2-2. Structure of closing plate]
As shown in FIG. 7A, the closing plate 121 is a metallic flat plate extending in the Y direction. The closing plate 121 is fixed to the end portion 111 of the lower part of the vehicle body forming the space 140 with bolts (not shown).

[2-3. Fin structure]
As shown in FIGS. 7A and 8A, the fin 122 extends in the X direction and has a substantially trapezoidal hollow shape in a side view, and includes a horizontal bottom surface portion 122c and a bottom surface portion 122c. It has a front upper surface part 122a inclined upward from the end part toward the closing plate 121, a horizontal upper surface part 122b following this, and a connection surface part 122d connecting the bottom surface part 122c and the upper surface part 122b.

  The fin 122 is attached to the guide rail 123 so as to be slidable in the X direction, and a stopper (not shown) is attached so that the fin 122 does not come off the guide rail 123 when sliding to the wheel 131 side. ing.

  The fins 122 are made of an elastic material such as rubber and absorb the load in the Y direction caused by snow, ballast, or the like. Note that the fin 122 may be made of a resin material such as FRP, a metal such as stainless steel, or the like in addition to an elastic material such as rubber. Further, the shape of the fin 122 is not limited to the substantially trapezoidal hollow shape in a side view, and may be a solid shape or a flat plate shape. Further, in order to prevent accumulation of water inside the fin 122, a drain hole may be provided in the upper surface portion 122a and the bottom surface portion 122c of the fin 122.

[2-4. Guide rail configuration]
As shown in FIGS. 7 (a) and 8 (b), the guide rail 123 is a pair of rails that are placed on the attachment metal 124 and extend in the X direction so as to sandwich the fins 122 from the Z direction. It is configured. Further, the above-described through hole 124 a is formed in the attachment metal 124. With these configurations, the fin 122 can slide (in and out) in the X direction.

[2-5. Structure of lock]
As shown in FIG. 7A, the lock 125 is a rotary lock and has a main body 125a, a dead bolt 125b, and a key hole 125c. By inserting a key (not shown) into the key hole 125c and rotating the key, the dead bolt 125b rotates. The lock 125 is not limited to a rotary lock, and other locks having a dead bolt may be used.

  In addition, two locks 125 are arranged on the surface extending in the Y direction of the attachment metal 124 with a predetermined interval in the Z direction. The dead bolt 125b of each lock 125 is fixed above the guide rail 123 so that the tip of the dead bolt 125b is in contact with or close to the upper surface of the mounting bracket 124. As a result, the dead bolt 125b rotates, and the dead bolt 125b prevents the fin 122 from sliding in the X direction when the tip of the dead bolt 125b is close to the upper surface of the attachment metal 124.

[2. Operation of the closing device]
Next, the operation of the closing device 120, that is, the operation of the fin 122 will be described with reference to FIGS. FIG. 7A is a side view showing a schematic configuration of the closing device when the railway vehicle is running, and FIG. 7B is a side view showing a schematic configuration of the closing device in a state where the lock is released. FIG.7 (c) is a side view which shows the structure outline of the closing apparatus at the time of the rail vehicle non-running.

  As shown in FIG. 7A, when the railway vehicle is running, the fin 122 is used so that the front protrudes from the opening of the guide rail 123 and closes the gap. In order to hold the fin 122 in this state, the tip of the dead bolt 125b of the lock 125 is fixed in a state in which the tip of the lock 125 is in contact with or close to the upper surface of the attachment 124 and the connection surface portion 122d of the fin 122 is in contact with the dead bolt 125b. Thereby, the dead bolt 125 b prevents the fin 122 from sliding in the X direction, and the fin 122 closes the lower surface of the gap 141 between the space 140 and the wheel 131.

  On the other hand, as shown in FIG. 7C, when the railway vehicle is not running (for example, during maintenance), the fins 122 are used while being stored in the guide rail 123. Specifically, when the tip of the fin 122 protrudes from the opening of the guide rail 123, a key is inserted into the key hole 125c of the lock 125, and the dead bolt 125b is rotated 90 degrees upward (FIG. 7B). reference). Since the fin 122 is now slidable in the X direction, the fin 122 is slid rearward to be stored in the guide rail 123, and the dead bolt 125b of the lock 125 is again rotated 90 degrees downward.

  That is, the tip of the dead bolt 125b is in contact with or close to the upper surface of the attachment metal 124, and the tip of the fin 122 is in contact with the dead bolt 125b. Accordingly, the dead bolt 125b prevents the fin 122 from sliding in the X direction, and the fin 122 is held in the state of being stored in the guide rail 123, so that a gap 141 between the space 140 and the wheel 131 is formed.

[3. Effects of this embodiment]
As described above, according to the railway vehicle including the closing device 120 of the present embodiment, damage to the equipment due to the ballast or the like is prevented by the closing plate 121 and the fins 122 when the railway vehicle is traveling. In addition, since the fins 122 block the lower surface of the gap 141 between the wheel 131 and the space portion 140, the inflow of snow from below the gap 141 is suppressed to suppress snow accumulation, and the inflow of air from below the gap 141 is also suppressed. Air resistance can be reduced. Further, when the railway vehicle is not traveling, the fins 122 can be stored to form the gap 141, so that an operator can enter the gap 141 and perform maintenance of equipment and the like.

<Other embodiments>
As described above, the preferred embodiments of the present invention have been described with reference to the drawings, but various additions, modifications, or deletions can be made without departing from the spirit of the present invention. In particular, in the present embodiment, the embodiment in which the fin (second closing member) is rotatable in the vehicle vertical direction and the embodiment in which the fin is slidable in the vehicle longitudinal direction have been described. However, the configuration in which the fin is movable is described. It is not limited to this. For example, the fin can be slid in the vertical direction of the vehicle and the fin can be moved up and stored to the bottom surface of the vehicle body when not traveling, or the fin can be slid in the vehicle width direction and the fin can be removed when not traveling Good. Further, the shape of the fin may be a configuration other than the above-described embodiment such as a flat plate shape or a solid shape, and the material of the fin may be other than the above-described embodiment such as a resin, metal, or a combination of these and an elastic member. It is good also as a material of. Therefore, such a thing is also included in the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Car body 2 Closing apparatus 21 Closing board (1st closing member)
22 Fin (second closing member)
22a Upper surface portion 22b Bottom surface portion 22c Connection surface portion 22d Fitting hole 22e Fitting hole 23 Hinge 24 Mounting bracket 24a Through hole 25 Lock 25a Body 25b Dead bolt 25c Key hole 3 Bogie 31 Wheel 4 Space portion 41 Gap 110 Car body 120 Closing device 121 Blocking Plate (first closing member)
122 Fin (second closing member)
123 Guide rail 124 Mounting bracket 124a Through hole 125 Lock 125a Main body 125b Dead bolt 125c Key hole 130 Bogie 131 Wheel 140 Space portion 141 Gap

Claims (6)

A carriage having wheels is arranged, and a space portion provided at the lower part of the vehicle body of the railway vehicle,
A closing device disposed before and after the longitudinal direction of the space,
With
The closing device is
A first closing member extending in the vehicle vertical direction;
When the railway vehicle travels, it extends in the longitudinal direction of the vehicle from the lower end of the first blocking member, and closes the gap between the first blocking member and the wheel. And a second closing member movable to form a railway vehicle. The second closing member is
2. The railway vehicle according to claim 1, wherein the railway vehicle is capable of rotating toward the first closing member centering on a vicinity of a lower end of the first closing member when the railway vehicle is not traveling. The second closing member is
A horizontal bottom,
An upper surface portion inclined upward from the end portion of the bottom surface portion toward the first closing member;
The railway vehicle according to claim 1, comprising a connection surface portion that connects the bottom surface portion and the top surface portion. The closing device further includes a first lock including a dead bolt,
The second closing member is
A first fitting hole into which the dead bolt of the lock is fitted to the connection surface portion;
A second fitting hole into which the dead bolt of the lock is fitted on the upper surface portion;
The first lock blocks the rotation of the second closing member by mated dead bolt to each of said fitting hole, railway vehicle according to claim 3.
The second closing member is
The railway vehicle according to claim 1, wherein the railway vehicle can be stored in the first closing member by sliding in a longitudinal direction of the vehicle from a lower end of the first closing member when the railway vehicle is not traveling. The closing device is
And a second lock containing deadbolts;
A guide rail for slidably guiding the second closing member,
The second lock is:
The railway vehicle according to claim 5, wherein when the railway vehicle is running, the guide rail is blocked in the height direction by the dead bolt, and the second blocking member is prevented from sliding.

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