JP5060190B2 - Ice and snow removal equipment for railway vehicles - Google Patents

Description

  The present invention relates to an ice / snow removing device for a railway vehicle, and more particularly to an ice / snow removing device for a railway vehicle that can reliably remove the ice / snow adhering to the lower part of the body of the railway vehicle.

  In the snowy area, snow enters the lower part of the vehicle body of the traveling railway vehicle, and gradually grows with ice and snow attached to the lower part of the vehicle body before and after the wheel. If ice and snow adhering to the lower part of the car body fall naturally during high-speed driving, problems such as jumping up the ballast on the track and damaging the equipment under the car body are necessary. There is.

  Conventionally, in order to remove snow adhering to the lower part of a vehicle, an inflatable / shrinkable bag body is arranged on the back surface of a surface ply that is installed with its surface exposed at a predetermined position below the vehicle body of a railway vehicle. There has been proposed a snow accretion prevention device that expands and contracts the surface ply by supplying and discharging air to and from the body to remove snow attached to the surface ply (see Patent Document 1). However, in the proposed snow accretion prevention device, since the cross-sectional shape of the bag body is a flat circle, in order to increase the expansion amount of the surface ply, it is necessary to enlarge the bag body and increase the cross-sectional area, While making the bag compact, it was difficult to secure the necessary amount of expansion of the surface ply and reliably remove the attached snow.

Further, in the proposed snow accretion prevention device, a plurality of bags arranged side by side are expanded and contracted at the same time, so that only a specific portion of the surface ply cannot be bulged and deformed, and the surface ply The deformed shape becomes constant. For this reason, there is a problem that it is difficult to reliably remove snow depending on the position and shape of the snow attached to the surface ply.
JP 2002-67956 A

  A main object of the present invention is to provide an ice / snow removing device for a railway vehicle that can reliably remove the ice / snow adhering to the lower part of the body of the railway vehicle.

In order to achieve the above object, an apparatus for removing snow and ice from a railway vehicle according to the present invention is provided with a flexible cover installed with a surface exposed at a predetermined position below a vehicle body of the railway vehicle, and a rear surface of the flexible cover. In a snow and ice removing device for a railway vehicle, comprising a bag body that can be expanded and contracted, and an air supply / discharge means for supplying and discharging air to and from the bag body, the cross-sectional shape of the bag body having a recess on the flexible cover side And a reinforcing member having a higher bending rigidity than that of the flexible cover and extending in the longitudinal direction of the bag body is provided in a part of the flexible cover .

  Here, a plurality of the bag bodies may be arranged side by side along the back surface of the flexible cover, and independent air supply means for supplying air independently to each bag body may be provided.

Another apparatus for removing ice and snow from a railway vehicle according to the present invention includes a flexible cover that is installed with its surface exposed at a predetermined position below the vehicle body of the railway vehicle, and a bulge disposed on the back surface of the flexible cover. In a snow and ice removing apparatus for a railway vehicle comprising a shrinkable bag and air supply / discharge means for supplying and discharging air to the bag, a plurality of the bags are arranged side by side along the back surface of the flexible cover. Independent air supply means for supplying air to each bag body is provided , and a part of the flexible cover has a higher bending rigidity than the flexible cover and extends in the longitudinal direction of the bag body. A reinforcing member is provided .

In the former and latter inventions, a holding frame may be disposed on the outer peripheral side of the bag body, and the bag body may be surrounded by the flexible cover and the holding frame in cross section. Further, the maximum bulge amount when the flexible cover bulges by supplying air to the bag body is set to, for example, 1 cm or more and 5 cm or less. Moreover, it can also be set as the structure which can be attached or detached freely at the predetermined position of the vehicle body lower part of a railway vehicle.

  According to the former ice and snow removing device for a railway vehicle according to the present invention, the inflatable / shrinkable bag body disposed on the back surface of the flexible cover that is installed with its surface exposed at a predetermined position below the vehicle body of the railway vehicle. Since it is formed in a cross-sectional shape having a recess on the flexible cover side, a bag body having a cross-sectional shape that does not have a recess such as a circular cross section when air is supplied by air supply / exhaust means to be expanded and deformed. The amount of bulging deformation can be increased as compared with the above, and accordingly, the amount of bulging deformation of the flexible cover can be increased. In other words, it is possible to secure the necessary amount of bulging deformation of the flexible cover while making the bag compact, and to reliably remove ice and snow attached to the surface of the flexible cover.

Further, according to the latter ice and snow removing device for a railway vehicle, the bag body that can be inflated and contracted along the back surface of the flexible cover that is installed with its surface exposed at a predetermined position below the vehicle body of the railway vehicle. Multiple air bags are arranged side-by-side, and independent air supply means is provided to supply air independently to each bag body. Can be bulged and deformed. Therefore, only the necessary portion of the flexible cover can be a Ru swelled deformed, also be bulging deformation of the flexible cover by a combination of the bulging deformation of the plurality of bag into various shapes it can. As a result, it is possible to reliably remove the ice and snow by causing the flexible cover to bulge and deform according to the position and shape of the ice and snow attached to the flexible cover.

  Hereinafter, an ice and snow removing device for a railway vehicle according to the present invention will be described based on the embodiments shown in the drawings.

As illustrated in FIG. 7, an underfloor equipment cover 15 is attached in front of and behind a carriage 13 of a railway vehicle 12 such as a Shinkansen (registered trademark), and a lot of ice and snow adheres to the end surfaces of the underfloor equipment cover 15 located in front of and behind the wheel 14. To do. Therefore, the ice / snow removing device 1 of the present invention is installed at the lower part of the vehicle body where such ice / snow is likely to adhere.

As illustrated in FIG. 1 to FIG. 3, the ice / snow removing device 1 includes a rubber cover 3 that is installed with a surface exposed at a predetermined position below the vehicle body of the railway vehicle 12 , and a rubber cover that is held by a holding frame 4 3 has a plurality of bar-like rubber tubes 2 arranged on the back surface, and each rubber tube 2 is connected to a pipe connection member 7 such as a base and a check valve 7a. Each rubber tube 2 can be connected to and disconnected from the air supply / discharge hose 9 by the couplings 8a and 8b.

  The air supply / discharge hose 9 is connected to an air compressor 10 provided in the railway vehicle 12. In the middle of the air supply / discharge hose 9, an independent control valve 11 a that controls the air supply / discharge hose 9 to supply air independently, and an exhaust valve 11 b that controls the exhaust of the air A inside the rubber tube 2. And are provided.

  A plurality of rubber tubes 2 held by the holding frame 4 are arranged side by side along the back surface of the rubber cover 3, and are unitized by being surrounded by an upper plate 6a, a lower plate 6b, and a side plate 6d. The number of the rubber tubes 2 arranged side by side is not particularly limited, and may be a single number instead of a plurality.

  The rubber cover 3 disposed on the opening side of the holding frame 4 is fixed to the upper plate 6a and the lower plate 6b by pressing members 6c and 6c. The rubber cover 3 may be fixed to the end face on the opening side of the holding frame 4 by the pressing member 6c. Thus, each rubber tube 2 has a structure surrounded by the rubber cover 3 and the holding frame 4 in cross section.

In addition, a flat reinforcing member 3 a extending in the longitudinal direction of the rubber tube 2 is embedded in the rubber cover 3. The reinforcing member 3a is provided the same number as the rubber tube 2 so as to face the respective rubber tube 2 is not limited to the same number as the rubber tube 2, also reduced to more than the number of rubber tubes 2 You can also. The reinforcing member 3a is preferably disposed so as to face the concave portion 2a of the rubber tube 2.

  The reinforcing member 3a only needs to have a higher bending rigidity than the rubber cover 3, and for example, glass fiber reinforced plastic (GFRP), carbon fiber reinforced plastic (CFRP), other resin molded bodies, and the like can be used. . The thickness of the reinforcing member 3a is, for example, about 1 mm to 5 mm.

  The unit holding the rubber tube 2 is detachably mounted at a predetermined position below the vehicle body by fixing means such as fixing bolts via mounting angles 5 and 5 fixed to the upper plate 6a and the lower plate 6b. Therefore, the ice / snow removing device 1 can be mounted on the vehicle body only when it snows and can be removed from the vehicle body at other times.

  The rubber tube 2 is formed in a U-shaped cross section having a recess on the rubber cover 3 side, and a reinforcing layer 2b is embedded therein. For example, a nylon canvas or the like is used as the reinforcing layer 2b. The reinforcing layer 2b can be omitted.

  The rubber tube 2 may be a bag body that can be expanded and contracted, but the inner peripheral rubber on the inner peripheral side from the reinforcing layer 2b and the outer peripheral rubber on the outer peripheral side from the reinforcing layer 2b are excellent in flexibility and elongation. Rubber types such as natural rubber (NR), chloroprene rubber (CR), isoprene rubber (IR), nitrile butadiene rubber (NBR), butadiene rubber (BR), styrene butadiene rubber (SBR), ethylene propylene diene rubber (EPDM) ) And the like. The inner peripheral rubber is particularly preferably a rubber type excellent in airtightness, and the outer peripheral rubber is particularly preferably a rubber type excellent in wear resistance. The inner peripheral rubber and the outer peripheral rubber can be made of different rubber types or the same rubber type.

  The rubber cover 3 may be a flexible cover, but a rubber type excellent in flexibility and elongation is preferably used, and the rubber type exemplified above can be used as the rubber tube 2. The rubber cover 3 and the rubber tube 2 can be made of different rubber types or the same rubber type.

  Next, the operation of the ice / snow removing device 1 will be described. As illustrated in FIG. 2, when ice or snow S adheres to the rubber cover 3, the air compressor 10 is operated, the independent control valve 11 a of each supply / discharge hose 9 is opened, and the exhaust valve 11 b is closed. To the state. Thereby, the air A is supplied into the rubber tube 2 through the supply / discharge hose 9.

  The rubber tube 2 supplied with the air A swells by inverting the concave portion 2a to the hollow outer peripheral side as illustrated in FIG. As the rubber tube 2 bulges and deforms, the rubber cover 3 bulges and deforms, so that the ice and snow S adhering to the surface of the rubber cover 3 is removed by receiving external force from the adhering surface side.

  The cross-sectional shape of the rubber tube 2 may be a shape that does not have the concave portion 2a, but when the rubber tube 2 is formed into a hollow cross-sectional shape having the concave portion 2a on the rubber cover 3 side, it is circular when deformed. Compared with a cross-sectional shape that does not have a recess, such as an elliptical hollow cross-sectional shape, the amount of bulging deformation can be increased. Accordingly, the bulging deformation amount of the rubber cover 3 can be increased. That is, it is possible to ensure the necessary amount of bulging deformation of the rubber cover 3 while making the rubber tube 2 compact, and to reliably remove the ice and snow S adhering to the surface of the rubber cover 3.

  Further, in the case where the cross-sectional shape of the rubber tube 2 is a hollow cross-sectional shape such as a circle or an ellipse, when the expansion amount (the amount of bulging deformation) is increased, a great tensile stress is generated in the film of the rubber tube 2. In the embodiment, since the concave portion 2a is inverted to the hollow outer peripheral side, the bulging deformation amount can be increased without increasing the tensile stress generated in the film of the rubber tube 2. Therefore, the structure is advantageous for improving the durability of the rubber tube 2.

Here, when the length of the rubber tube 2 is increased (for example, about 1 m) and the rubber cover 3 is also elongated accordingly, when the rubber tube 2 is bulged, the rubber cover 3 is elongated. In some cases, the central portion in the longitudinal direction, which is less constrained than the end portion in the direction, bulges and deforms locally, and the amount of bulge deformation at the end portion in the longitudinal direction becomes small. In such a case, it becomes difficult to remove the ice and snow S adhering to the end portion in the longitudinal direction of the rubber cover 3, but in this embodiment, the rubber cover 3 is provided with a reinforcing member 3a extending in the longitudinal direction of the rubber tube 2. Therefore, the bias of the bulging deformation amount in the longitudinal direction of the rubber cover 3 is corrected by the high bending rigidity of the reinforcing member 3a. Therefore, it becomes easy to remove the ice and snow S adhering to the end portion in the longitudinal direction of the rubber cover 3.

  In the embodiment, the holding frame 4 is arranged on the outer peripheral side of the rubber tube 2 and the rubber tube 2 is surrounded by the rubber cover 3 and the holding frame 4 in the cross section, so that air A is supplied to the rubber tube 2. At this time, the bulging deformation of the rubber tube 2 is regulated by the holding frame 4. Therefore, the rubber tube 2 can be reliably bulged toward the rubber cover 3 side that is not restrained by the holding frame 4.

  When the rubber cover 3 is returned to the original state, the exhaust valve 11b is opened, the air A inside the rubber tube 2 is discharged outside through the supply / discharge hose 9, and the expanding rubber tube 2 is contracted. Let When removing the ice and snow S adhering to the rubber cover 3, the opening and closing of the exhaust valve 11b may be repeated to repeatedly expand and contract the rubber tube 2 (rubber cover 3). .

  The maximum bulge amount B when the rubber cover 3 bulges when air A is supplied to the rubber tube 2 is set to, for example, 1 cm to 5 cm. This is because if it is less than 1 cm, the effect of removing the ice / snow S is low, while if it exceeds 5 cm, the effect of removing the ice / snow S commensurate with the increase in the amount of swelling cannot be obtained.

  Moreover, in this embodiment, since the independent control valve 11a is provided in each supply / exhaust hose 9, it has the structure which can supply air independently to several rubber tubes 2, Therefore Independently from the rubber tube 2 selected from several Then, the air A can be supplied and the respective rubber tubes 2 can be bulged and deformed independently.

  Therefore, as illustrated in FIG. 5, only a necessary portion of the rubber cover 3 can be bulged and deformed. In FIG. 5, the air A is supplied to only the upper and lower rubber tubes 2 and 2 so as to bulge and deform, and the middle rubber tube 2 is left in a contracted state without supplying air A.

  Further, the rubber cover 3 can be bulged and deformed into various shapes by a combination of changing the amount of bulging deformation of the plurality of rubber tubes 2 by opening / closing control of the independent control valve 11a of each supply / discharge hose 9. Therefore, the rubber cover 3 can be deformed in a steep slope. In this manner, the rubber cover 3 is bulged and deformed according to the position, shape, etc. of the ice / snow S attached to the rubber cover 3, and the ice / snow S can be reliably removed.

  In the embodiment shown in FIG. 1, the independent control valve 11a may be omitted, and the air A may be supplied to the rubber tubes 2 at the same time.

  In the embodiment, the air supply / discharge hose 9 is connected to the air compressor 10 provided in the railway vehicle 12, but may be connected to a portable air compressor 10 independent of the railway vehicle 12, for example. In that case, the air supply / discharge hose 9 connected to the portable air compressor 10 outside the railway vehicle 12 is connected to the rubber tube 2 via the couplings 8a and 8b.

  Further, in the cross section, the recess 2a formed on the rubber cover 3 side of the rubber tube 2 is not limited to one illustrated in FIG. 2, and two recesses 2a and 2a may be formed as illustrated in FIG. Good.

1 is a perspective view of an ice and snow removing device for a railway vehicle of the present invention. FIG. 2 is a side view of the ice / snow removing device of FIG. 1. It is a front view which illustrates the rubber cover of FIG. It is a side view which illustrates the state where the rubber tube of the ice and snow removing device of FIG. It is a side view which shows another example of the state which the rubber tube of the ice / snow removal apparatus of FIG. It is sectional drawing which shows the modification of the rubber tube of the ice-snow removal apparatus of FIG. 1 is a side view of a railway vehicle to which an icy and snow removing device of the present invention is attached.

Explanation of symbols

1 Ice and snow removal device 2 Rubber tube (bag body that can be expanded and contracted)
2a Recess 2b Reinforcing layer 3 Rubber cover (flexible cover)
3a Reinforcing member 4 Holding frame 5 Mounting angle 6a Upper plate 6b Lower plate 6c Press plate 6d Side plate 7 Piping connection member 7a Check valve 8a, 8b Coupling 9 Air supply / discharge hose 10 Air compressor 11a Independent control valve 11b Exhaust valve 12 Railway Vehicle 13 Bogie 14 Wheel 15 Underfloor equipment cover S

Claims (6)

A flexible cover installed with its surface exposed at a predetermined position below the body of a railway vehicle, an inflatable bag body disposed on the back surface of the flexible cover, and air supply / exhaust to the bag body In the ice / snow removing device for a railway vehicle, the bag body is formed in a cross-sectional shape having a recess on the flexible cover side, and the flexible cover is formed on a part of the flexible cover. An apparatus for removing snow and ice from a railway vehicle , comprising a reinforcing member having a bending rigidity higher than that of a cover and extending in a longitudinal direction of the bag .   2. The snow removal of a railway vehicle according to claim 1, wherein a plurality of the bag bodies are arranged side by side along the back surface of the flexible cover, and independent air supply means for supplying air independently to each of the bag bodies is provided. apparatus. A flexible cover installed with its surface exposed at a predetermined position below the body of a railway vehicle, an inflatable bag body disposed on the back surface of the flexible cover, and air supply / exhaust to the bag body In a snow and ice removing apparatus for a railway vehicle comprising an air supply / discharge means, a plurality of the bags are arranged side by side along the back surface of the flexible cover, and air is independently supplied to each of the bags. An apparatus for removing ice and snow from a railway vehicle , comprising an air supply means, and a reinforcing member having a bending rigidity higher than that of the flexible cover and extending in a longitudinal direction of the bag body . The removal of ice and snow from a railway vehicle according to any one of claims 1 to 3 , wherein a holding frame is disposed on an outer peripheral side of the bag body, and the bag body is surrounded by the flexible cover and the holding frame in a cross section. apparatus. The ice / snow removing device according to any one of claims 1 to 4 , wherein a maximum bulge amount when the air is supplied to the bag body and the flexible cover bulges is 1 cm or more and 5 cm or less. Snow and ice removal device for railway vehicle according to claim 1 and a detachable freely configured on a predetermined position of the underbody of the rail vehicle.

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