JP3808414B2 - High-speed rail car outer hood - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an outer hood for a vehicle connecting portion that is attached to a connecting portion of a railway vehicle, and more particularly to an outer hood for a high-speed rail vehicle for preventing noise during traveling of the high-speed rail vehicle.
[0002]
[Prior art]
Conventionally, when a railway vehicle travels, a high-speed traveling wind flows along an outer surface such as a side surface or a roof surface. Due to the high-speed traveling wind, a violent eddy current is generated in the uneven portion of the vehicle surface. This vortex increases wind noise and significantly increases the air resistance of the railway vehicle. In particular, when there is a gap in the vehicle connecting portion, the wind noise during high speed traveling is a serious problem.
[0003]
Concerning the problem of wind noise described above, the space at the vehicle connection part is completely covered with a bellows-shaped outer hood, and the bellows-shaped outer hood is inflated and shrunk by air pressure, so that when running on a curve with a small track branching point or curvature. An outer hood that follows the relative displacement between vehicles has already been released. (For example, see Patent Documents 1 and 2)
[0004]
However, this type of outer hood is configured to be fixedly attached to both vehicle ends (wife surfaces) of the vehicle connecting portion, and is arranged and fixed after the vehicles are connected to seal the space of the vehicle connecting portion. It will stop. Therefore, when disconnecting the vehicle, it is necessary to remove the outer hood one by one, and it is not a configuration that allows easy connection and disconnection of the vehicle. Furthermore, there is a problem in durability, such as deformation of the outer hood repeated due to vehicle shake and expansion and contraction of the outer hood, which causes cracks in the outer hood.
[0005]
In order to reduce wind noise, it is effective to seal the space of the vehicle connecting portion and eliminate the unevenness when the vehicle is running. For this reason, in the type in which separate outer hoods are attached to the respective wives of the vehicle connecting portion, it is important that the distance between the opposed outer hoods is almost zero and the flat outer surface is uniform.
[0006]
In addition, since the curve curvature of the main track of high-speed railway vehicles such as Shinkansen is relatively small (the curve radius is large), a predetermined amount of the outer hoods facing each other on the vehicle's wife face are brought into a crimped state to drive the curve. It is possible to always keep the outer hoods that are going to spread out in contact with each other.
[0007]
[Patent Document 1]
Japanese Patent Laid-Open No. 11-198805 (page 2-3, FIG. 2)
[Patent Document 2]
JP 11-291903 A (page 2-3, FIG. 3)
[0008]
[Problems to be solved by the invention]
Recent high-speed railcars are running at higher speeds, and the problem of wind noise is also increasing. Further, there is a demand for an outer hood that does not need to be attached and detached at the time of connecting and disconnecting vehicles and that has a long life.
[0009]
An object of the present invention is an outer hood for a connecting portion of a railway vehicle that travels at a high speed, and is attached to each wife's face, and the opposed outer hoods are always kept in contact with each other with a simple mechanism and is durable. It is an object of the present invention to provide an outer hood for a high-speed railway vehicle.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 is directed to a vehicle having a U-shaped hood member having an inner side surface portion, an outer side surface portion, and an arcuate central portion that connects both of them. An outer hood for a vehicle disposed opposite to each other so as to contact each arcuate center part from the surface, wherein the hood member is made of a plate-like elastic body with the arcuate center part being thin. Forming and fixing the outer side surface portion, and providing a moving means for moving the inner side surface portion in the vehicle front-rear direction, moving the inner side surface portion by the moving means, and contacting the arcuate center portions of the opposing hood members The state can be maintained, and the moving means includes an air spring member that expands and contracts when compressed air enters and exits, a moving holder that transmits expansion and contraction movement of the air spring member to the inner side surface portion, and a contraction of the air spring member. Separate bar with urging force It is characterized by having a structure provided with a net member .
[0011]
According to the invention according to claim 1 having the above-described configuration, by moving the inner side surface portion of the hood member, it becomes possible to always keep the arc-shaped central portions facing each other in a contact state, and during straight running, The space of the vehicle connecting portion can be sealed regardless of when traveling on a curve, and wind noise during traveling can be reduced. Furthermore, when the compressed air is extracted from the air spring member, it can be quickly contracted by the urging force of a separate spring member, and the contact state between the hood members can be quickly adjusted in response to the curve condition of the vehicle traveling track. Can be changed. In addition, the outer hoods in a crimped state can be immediately opened during high-speed traveling, and can be immediately opened during low-speed traveling without generating wind noise. For this reason, when traveling at low speed on a track with a large curve curvature (small curve radius) such as inside a station, it is possible to relax or release the crimping state of the outer hood between the inner surfaces where the crimping state becomes tight. The outer hood can be obtained with increased durability and longer life.
[0012]
The invention according to claim 2 is characterized in that the thin-walled portion of the arc-shaped central portion is provided at a position where the outer surface of the outer surface portion becomes substantially the same surface shape even when the inner surface portion is moved .
[0013]
According to the invention according to claim 2 having the above-described configuration, since the arcuate central portion is formed thin, it is possible to easily maintain a predetermined U-shape and to make a strong contact even in a contact state. And durability can be obtained. Furthermore, the outer surface of the vehicle outer surface and the outer surface of the hood member covering the connecting portion are substantially the same surface, and the surface irregularities can be minimized.
[0014]
According to a third aspect of the present invention, the air spring member is sandwiched between a lower support part fixed via a holder and an upper support part movable via the movable holder, and the movable holder The guide shaft provided around the air spring member as a guide guide is configured to move uniformly in conjunction with the expansion and contraction of the air spring member, and between the holding tool and the moving holder. A plurality of the separately installed spring members are distributed and installed around the air spring member, and the holding means is fixed to a stepped base having a space where an air joint and an air hose can be arranged, and the moving means It is characterized in that the unitized.
[0015]
According to the invention according to claim 3 having the above-described configuration, the separate spring member is distributed and installed around the air spring member, so that the compression force by the spring is made uniform and the hood member 1 can be expanded and contracted. It will be possible to do it quickly and reliably. Further, since the moving means is unitized, the moving means can be installed at an optimal position on the vehicle wife surface according to the size and type of the vehicle .
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of an outer hood for a high-speed railway vehicle according to the present invention will be described below with reference to FIGS.
[0019]
FIG. 1 is a perspective view showing a high-speed railcar outer hood according to the present invention disposed on a vehicle connecting portion (wife surface). FIG. 2 is a front view of the vehicle end to which the high-speed railcar outer hood according to the present invention is mounted. FIG. 3 is a cross-sectional view of a hood member according to the present invention. FIG. 4 is a sectional view of the moving means for the hood member according to the present invention, and FIG. 5 is a perspective view thereof.
[0020]
As shown in FIG. 1, a hood member 1 is disposed in a vehicle connecting portion of a vehicle T1 and a vehicle T2, and the vehicle connecting portion and each vehicle outer surface are formed in the same plane so as to eliminate unevenness. The hood member 1 is divided into a side outer hood 1A and a roof outer hood 1B. Moreover, a lower side outer hood or a bottom outer hood (not shown) may be employed as necessary. A side outer hood 1A and a roof outer hood 1B are provided on each of the end faces of the vehicles T1 and T2, respectively. When the vehicles are connected, the arcuate tips of the hood members 1 facing each other are connected to each other. It contact | abutted and it was set as the structure which makes a vehicle connection part the outer surface without an unevenness | corrugation.
[0021]
The opposing hood members 1 may have the same shape and the corners of each other may be in contact with each other. However, as shown in the figure, the opposite corners of the hood member 1 are shifted so that the corners meet each other. If it is configured so as not to contact, the corners do not rub against each other and durability can be improved.
[0022]
As shown in FIG. 3, the hood member 1 is a vertically long synthetic rubber product having a U-shaped cross section, and a root portion 1 a is an attachment portion. The base portion 1a is formed to be thick, and is configured to be firmly held by the mounting bracket 2 with high rigidity. Further, the arcuate central portion 1b having a U-shaped cross section is formed to be thin and configured to be easily elastically deformed.
[0023]
Since the arc-shaped central portion 1b is formed thin, the hood member 1 can be easily bent into a U shape, and when one of the mounting brackets 2 is moved, the shape can be changed following the movement. Further, even if the arcuate central portions 1b, which are thin rubber products, are brought into contact with each other, they are easily elastically deformed. Therefore, even if the hood members 1 facing each other are brought into contact with each other, wear is alleviated and durability is deteriorated. There is nothing.
[0024]
When the hood member 1 is bent into a U shape by the position of the thin-walled portion of the arcuate central portion 1b, the outer surface portion 1d can be made substantially vertical. That is, the optimum position of the thin portion of the arcuate central portion 1b can be obtained by the overhang length L and the width dimension W according to the vehicle interval of the high-speed railcar. In the vehicle equipped with the hood member 1 having such a shape, the outer surface of the hood member 1 covering the connecting portion and the outer surface of the vehicle becomes substantially the same surface, and the unevenness of the surface can be minimized.
[0025]
In order to reduce wind noise, it is important that the vehicle connection part of the railway vehicle that travels at high speed has the same surface shape without any step between the vehicle outer surfaces. Therefore, it is necessary to keep the hood members 1 facing each other always in contact with each other during traveling. During traveling on the straight track, the vehicle ends of the vehicles T1 and T2 forming the connecting portion are in a parallel state, and the protruding shapes of the left and right side outer hoods 1A are the same.
[0026]
Since the curve radius of the main track of a high-speed railway vehicle such as a Shinkansen is relatively large (the curvature is small), a certain amount of outer hoods facing each other on the surface of the vehicle are kept in a crimped state so that it can be widened when driving on a curve. It is possible to always keep the outer hoods to be in contact with each other. At that time, the hood members on the inner side of the curve are in strong contact with each other, but the arcuate central portion 1b is formed thin and easily deforms elastically, so that the hood member 1 in a crimped state is not damaged, There is no reduction in service life.
[0027]
In addition, when traveling on a track with a small curve radius (a large curvature) such as in a stop station, the crimping state inside the curve becomes severe, so the crimping state between the outer hoods is opened. Therefore, when the curve curvature is large or when traveling at a low speed, the expansion / contraction state of the outer hood is changed.
[0028]
The moving means 10 for operating expansion / contraction of the hood member 1 will be described with reference to FIGS. The moving means 10 controls the protruding amount of the arcuate central portion 1b of the hood member 1 by the support member 13A holding the inner side surface portion 1c of the hood member 1 moving in conjunction with the expansion and contraction of the air spring member 11. It is. The lower support portion 12 a of the air spring member 11 is fixed to the holder 14, and the upper support portion 12 b is fixed to the moving holder 13, thereby moving the movable holder 13 in conjunction with the expansion and contraction of the air spring member 11. It is the structure to make. The movement holder 13 is configured to move uniformly with the expansion and contraction of the air spring member 11 using the three guide shafts 16a, 16b, and 16c as guide guides.
[0029]
The moving end (ascending end) of the moving holder 13 with respect to the guide shafts 16a, 16b and 16c is mechanically restricted, and the position 13x indicated by the solid line is the ascending end. As an example of the mechanism for this purpose, a large-diameter portion may be provided on the heads of the guide shafts 16a, 16b, and 16c to serve as the moving end of the moving holder 13. Moreover, it is good also as a structure which provides a stop member (stopper) separately from a guide shaft.
[0030]
The movable holder 13 has a support portion 13A bent into an L shape from a flat air spring member holding portion, and the support portion 13A, a guide shaft 16 and a boss 15 slidably disposed. The inner surface 1c of the hood member 1 is held. Therefore, the expansion / contraction operation of the air spring member 11 moves the inner side surface portion 1c of the hood member 1 via the moving holder 13 and the support portion 13A.
[0031]
A base portion 1 a of the outer surface portion 1 d of the hood member 1 is fixed by a pin 3 to a mounting plate 2 A attached to a face plate material 2 B disposed on a frame 2 C at the end of the vehicle. In addition, the moving plate 10 is disposed on the mounting plate 2 </ b> A via the substrate 20. The base portion 1a of the inner side surface portion 1c of the hood member 1 is sandwiched between a boss 15 slidable on the guide shaft 16 and a support portion 13A, and the inner side surface portion 1c follows the expansion / contraction operation of the air spring member 11. It is configured to move.
[0032]
For this purpose, the hood member 1 is interlocked with the movement of the hood member 1 by being configured to be movable by the stroke 13z from the position 13x indicated by the solid line to the position 13y indicated by the broken line by the expansion and contraction of the air spring member 11. The arcuate central portion 1b is configured to be stretchable by a stroke 1z from a position 1x indicated by a solid line to a position 1y indicated by a broken line. That is, the opposing hood members 1 are configured such that the arcuate central portion 1b, which is the tip of each, can be expanded and contracted by a stroke 1z.
[0033]
When the high-speed railway vehicle travels on the track, the opposing hood members 1 are in contact with each other, and the vehicle connecting portion is in a sealed state. Therefore, when the arcuate central portion 1b is located at a position 1x indicated by a solid line, that is, the state where the hood member 1 extends most is the outer hood state on the outside when the vehicle travels on the curved track. Further, when the vehicle enters the station, the vehicle is in a low speed state and no wind noise is generated. Therefore, the opposing hood members 1 may be separated from each other. Therefore, the arcuate central portion 1b is configured to be retractable to a position 1y indicated by a broken line, and when the vehicle travels on the curved track, the hood members facing each other inside the curve are separated from each other, or the contact force Is reduced, the contact load of the hood member 1 is reduced.
[0034]
The air supply to the air spring member 11 is a configuration in which compressed air is supplied from the air hose 19 through the air joint 18 disposed in the holder 14. The air supply is controlled through an electromagnetic valve (not shown), but will not be described in detail here. Needless to say, this compressed air can be used as it is for the door opening and closing mechanism of the vehicle.
[0035]
When the front end portion of the hood member 1 is extended and extended outward, compressed air may be supplied to the air spring member 11. Conversely, when the front end portion is contracted, compressed air is supplied from the air spring member 11. In addition to pulling out, it is configured to be contracted by a separately placed spring member 17. With this configuration, the hood member 1 can be expanded and contracted reliably and quickly. The spring member 17 was distributed and arranged at six locations around the air spring member 11. This is for equalizing the compressive force of the spring. However, the number of the spring members 17 is not limited to six, and any number may be used as long as the air spring members 11 are evenly contracted.
[0036]
The moving means 10 is placed on the substrate 20 via the pedestal 21. The pedestal 21 is a stepped pedestal that can be installed by floating the moving means 10 from the substrate 20, and the air joint 18 and the air hose 19 are disposed in a space formed by the substrate 20 and the pedestal 21. It is a configuration. Therefore, the moving means 10 unitized as a unit with the guide shaft 16 separately provided on the substrate 20 can be moved together with the substrate 20 and installed anywhere on the faceplate 2B. The installation position can be easily changed according to the size and type of the vehicle.
[0037]
FIG. 2 shows a configuration in which moving means 10A and 10D are arranged on one side outer hood 1A, and moving means 10B and 10C are arranged on the other side outer hood. Further, the roof top hood 1B is set and fixed so that the hood members facing each other come into contact with each other. This is because even if the railway vehicle body is on a curved track, the variation in the distance between the connecting portions near the center of the vehicle body is small. However, if necessary, another moving means 10 may be provided to extend and retract the roof top hood 1B.
[0038]
Furthermore, a lower side outer hood 1C and a bottom bottom outer hood 1D of the vehicle body may be provided. At this time, the lower side outer hood 1C and the bottom outer hood 1D may be fixed by bringing the facing hood members into contact with each other in the same manner as the roof outer hood 1B. It can also be configured to be telescopic.
[0039]
Although one side outer hood 1A is expanded and contracted by the moving means 10A and 10D, the curve radius of the traveling track is large when traveling at high speed, so that it can be fixed in a state where it is pressed by a predetermined amount. The predetermined amount is a pressure contact amount that allows the outer hood members to maintain a contact state when traveling at a high speed on a curved track. In this case, the abutting state between the hood members on the inside of the curve becomes tight, but the thin arc-shaped central part can be elastically deformed without difficulty, so that the abutting force can be weakened and the durability can be impaired. Absent.
[0040]
When traveling at a low speed, such as when entering a station, no wind noise is generated, so there is no need to bring the facing hood members into contact with each other. Therefore, the air spring member 11 can be contracted and the hood members facing each other can be separated from each other. Also, when traveling at low speed on a curved track with a large curvature or when stopping, the distance between the connecting parts on the inside of the curve becomes small, but they are rubbed tightly by separating the opposing hood members or relaxing the contact force In addition, the durability is not deteriorated.
[0041]
In this embodiment, since the outer hood for the connecting portion of the railway vehicle that runs at high speed is configured to be extendable and retractable by the unitized moving means, both when traveling on a linear track and when traveling on a curved track, The space of the vehicle connecting portion can be sealed with a hood member made of a synthetic rubber member, and wind noise during high speed running can be reduced.
[0042]
In addition, since the driving force for moving the hood member is obtained from the air spring, the shape can be easily displaced when an external force is applied, and it can be regarded as a driving source having air damper performance. Therefore, it is not necessary to strictly control the driving force, and when traveling on the main line, it is possible to perform relative control regardless of the curve shape of the traveling track by simply controlling the outer hoods facing each other in a predetermined amount. It has the outstanding effect that the outer hood for vehicle connection parts to face can be maintained in a contact state.
[0043]
Since the hood member 1 is disposed at the connecting portion between the vehicles, the hood member 1 is always in contact with the outside air and is hit by rain or exposed to sunlight. Therefore, it is preferable to employ a weather resistant rubber member (for example, a natural rubber base coated with ethylene propylene rubber) as the material of the hood member 1.
[0044]
Having weather resistance means being resistant to environmental influences such as temperature and humidity, sunlight, rainwater, etc., not being deteriorated or fading, and being stable in quality.
[0045]
Ethylene propylene rubber is suitable as a material for the hood member 1 because it is excellent in ozone resistance, chemical resistance, and heat resistance, and further has a property of not fading even when exposed to sunlight. Of course, other materials may be used as long as they have similar properties.
[0046]
Furthermore, since it has a U-shaped cross section, the base portion is thick and the arc-shaped central portion is thin, a predetermined amount of expansion and contraction can be easily obtained by moving one of the base portions. Further, by considering the position of the thin portion at the center, the outer surface of the hood member can be made the same as the outer surface of the vehicle during high speed traveling, and wind noise can be further reduced.
[0047]
【The invention's effect】
According to the first aspect of the present invention, in the hood member having a U-shaped cross section including the inner side surface portion, the outer side surface portion, and the arc-shaped center portion that couples both, the contact state between the arc-shaped center portions can be maintained. Therefore, it becomes possible to keep the arc-shaped central portions of the hood members facing each other in contact with each other at all times, and the space of the vehicle connection portion can be sealed regardless of whether the vehicle is traveling straight or curved. Wind noise can be reduced. Furthermore, the movement of the inner side surface portion is an air spring member that expands and contracts by the entry and exit of compressed air, a moving holder that transmits the expansion and contraction movement of the air spring member to the inner side surface portion, and a direction in which the air spring member is contracted. Since it is configured to be performed by a moving means including a separate spring member having an urging force, the hood members facing each other are brought into contact with each other during high speed travel (straight or small curvature), and at low speed travel It is possible to quickly perform a moving operation such as relieving the contact force between the facing hood members or separating them from each other (in a large curvature or in a station). Therefore, the durability of the hood member can be increased and the life can be extended.
[0048]
According to the second aspect of the present invention, since the arcuate central portion is formed thin, it can easily maintain a predetermined U-shape, and does not strongly contact even in a contact state. Can be obtained. Furthermore, the outer surface of the vehicle outer surface and the outer surface of the hood member covering the connecting portion are substantially the same surface, and the surface irregularities can be minimized.
[0049]
According to the invention of claim 3, since the moving means is unitized on a single substrate and can be installed at an arbitrary position of the vehicle connecting portion, it is unitized at a predetermined position of the vehicle connecting portion. The moving means can be installed, and the moving means can be installed at an optimum position according to the size and type of the vehicle. Further, since the separately installed spring members are distributed around the air spring member, the compression force by the springs can be made uniform, and the hood member 1 can be expanded and contracted reliably and quickly.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an outer hood for a high-speed railway vehicle according to the present invention disposed at a vehicle connecting portion.
FIG. 2 is a front view of a vehicle end to which an outer hood for a high-speed railway vehicle according to the present invention is mounted.
FIG. 3 is a cross-sectional view of a hood member according to the present invention.
FIG. 4 is a cross-sectional view of a moving means for a hood member according to the present invention.
FIG. 5 is a perspective view of a moving means for a hood member according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Top member 1a Root part 1b Arc-shaped center part 1c Inner side surface part 1d Outer side part 10 Moving means 11 Air spring member 13 Substrate 17 Spring member 20 Substrate T1, T2 Vehicle L Overhang length W Width dimension

Claims (3)

The U-shaped hood member having an inner surface portion, an outer surface portion, and an arcuate central portion that connects the two faces each other so that the respective arcuate central portions are in contact with each other from each wife face of the connected vehicle. An outer hood for a vehicle,
The hood member is formed from a plate-like elastic body having a thin arc-shaped central portion, provided with a moving means for fixing the outer side surface portion and moving the inner side surface portion in the vehicle front-rear direction. It is possible to maintain the contact state between the arc-shaped central portions of the hood members facing each other by moving the inner side surface portion,
The moving means includes an air spring member that expands and contracts when compressed air enters and exits, a moving holder that transmits expansion and contraction movement of the air spring member to the inner side surface, and a biasing force in a direction to contract the air spring member. An outer hood for a high-speed railway vehicle, characterized by comprising a spring member . 2. The outside for a high-speed railway vehicle according to claim 1 , wherein the thin-walled portion of the arc-shaped central portion is provided at a position where the outer surface of the outer surface portion is substantially the same surface even when the inner surface portion is moved. A hood. The air spring member is sandwiched between a lower support portion fixed via a holder and an upper support portion that is movable via the movable holder, and the movable holder is disposed around the air spring member. A plurality of guide shafts disposed on the air spring member are configured to move uniformly in conjunction with expansion and contraction of the air spring member, and a plurality of guide shafts are provided around the air spring member between the holder and the movable holder. The separate spring member is distributed and installed, and the holding means is fixed to a stepped base having a space where an air joint and an air hose can be arranged, and the moving means is unitized. The outer hood for a high-speed railway vehicle according to claim 1 or 2.

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