JP2008214893A - Soundproof wall for railroad track - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a soundproof wall for a railroad track, which can be simply installed and dismantled. <P>SOLUTION: A mounting fitting 1 is mounted on a rail 3 in the railroad track R. The mounting fitting 1 can be freely mounted on/demounted from the rail 3. Thus, a soundproof panel 2 can be freely mounted on/demounted from the rail 3, and the soundproof wall 10 can be simply installed and dismantled on the railroad track R. Additionally, when the rail 3 is provided so that a train can travel on the railroad track R, the soundproof wall 10 can be simply provided by mounting the mounting fitting 1 on the existing rail 3. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a noise barrier for a railroad track that prevents the propagation of noise generated during repair work or track maintenance work on an existing railroad track.

  As a soundproof wall for preventing the propagation of noise generated on a railway track, for example, the height of the soundproof wall is lower than the soundproof wall between the soundproof wall installed at a predetermined height with a predetermined distance from both sides of the rail and the rail, and An inner soundproof wall having a tip inclined to the opposite side of the vehicle is provided, and a soundproof wall for railroad having a sound absorbing property on the inclined upper surface is disclosed (for example, Patent Document 1).

  Also, a railway soundproof wall provided along a railway track of a conventional line of a railway vehicle traveling on wheels, provided on both sides of the track, and having a height below a height that does not obstruct the view from the wheel window A soundproof wall for railways, which has a sound absorbing surface on the surface facing the track of the standing wall and absorbs the noise generated from the rolling wheel rolling noise and the motor by the sound absorbing surface. It is disclosed (for example, Patent Document 2).

JP-A-5-187005 JP 2004-132062 A

  However, conventional noise barriers for railroad tracks such as those described in Patent Document 1 and Patent Document 2 do not have a structure that can be easily installed and dismantled, for example, in track maintenance work. However, the current situation is that there has been no sound barrier on the railway track that can be easily installed and dismantled.

  The present invention has been made in view of the above-described problems, and an object thereof is to provide a railway track noise barrier that can be easily installed and disassembled.

  In order to achieve the above object, the present invention is configured as follows. That is, the soundproof wall for a railway track according to the present invention is such that a mounting bracket is detachably attached to a rail provided in the railroad track, and a soundproof panel is erected on the rail via the mounting bracket. It is a feature.

  According to the soundproof wall for railroad tracks according to the present invention, the mounting bracket is attached to the rail in the railroad track, and the mounting bracket is detachable from the rail, so that the soundproof panel can be attached to and detached from the rail. The soundproof wall can be easily installed and dismantled on the railway track.

  In addition, if the rail is a rail for running a train, it is possible to install a soundproof wall using an existing rail without having to provide another rail, and the installation and disassembly of the soundproof wall is further simplified. This is preferable.

  The rail includes a head whose upper surface is a flat surface and a vertical rib whose width is narrower than the head, and a mounting bracket using the flat surface and both side surfaces of the vertical rib. It is preferable that the soundproof wall can be stably attached by supporting and fixing the mounting bracket at at least three points.

  In addition, at least two rails are extended in parallel, the mounting bracket is attached to one of the two rails, and a reinforcing material is provided between the soundproof panel and the other rail. If this is the case, even if a strong external force is applied to the soundproof panel due to a gust of wind or the like, the risk of the soundproof panel falling down can be reduced.

  Further, if at least a part of the one rail and the other rail are formed of an insulator and are electrically insulated, a soundproof wall is installed between the one rail and the other rail. Insulation is also preferable because it eliminates the possibility of malfunction of signals and railroad crossings.

  According to the soundproof wall for railroad tracks according to the present invention, the mounting bracket is attached to the rail in the railroad track, and the mounting bracket is detachable from the rail, so that the soundproof panel can be attached to and detached from the rail. The soundproof wall can be easily installed and dismantled on the railway track.

  BEST MODE FOR CARRYING OUT THE INVENTION The best embodiment according to the present invention will be specifically described below with reference to the drawings.

  1 to 4 show an embodiment of a railway track noise barrier according to the present invention. First, FIG. 1 is a side view of the railway track noise barrier installed. Two rails 3 for the train to run on the railroad track R are installed at an interval, and the rail 3 is a double-track track as the train passes over it. Are installed in parallel. A soundproof wall 10 is formed on the rail 3 by attaching a soundproof panel 2 having sound insulation to the mounting bracket 1, and the soundproof panel 2 is attached to the rail 3 via the mounting bracket 1. On the side where the soundproof wall 10 is provided, the track maintenance member M performs a track maintenance work that generates noise such as gravel tamping, and the soundproof panel 2 prevents the noise from propagating. Such track maintenance work is performed at night, noise considerations are indispensable when there are private houses along the line, and there are strong time restrictions such as only at night or only for one hour in the daytime. For this reason, there is a demand for a noise barrier for railway tracks that can be quickly and easily installed before starting work and dismantled after finishing work.

  FIG. 2 is a perspective view showing details of the mounting bracket 1. The mounting bracket 1 is entirely made of a steel material, and includes a panel mounting portion 11 and a rail clamping portion 12 that allow the rail 3 to be clamped. The panel mounting portion 11 extends in the vertical direction. The panel support part 13 and the panel receiving part 14 provided at the lower end of the panel support part 13 are integrally provided by welding. On the opposite surface of the panel support portion 13 where the panel mounting portion 11 is provided, two screw holes 131 each having a thread on the inner surface for mounting the soundproof panel are provided at intervals in the vertical direction. Two sets of these two bodies are provided at intervals on the left and right, and a total of four screw holes 131 are provided. The rail 3 is provided with a vertical rib 32 narrower than the rail head 33 and the sleeper mounting part 34 between the rail head 33 having a rounded rectangular cross section and the sleeper mounting part 34 fixed to the sleeper. The top surface of the head 33 is a flat surface 31.

  The panel mounting portion 11 includes an upper plate portion 111 in contact with the flat surface 31 and a side plate portion 112 extending downward from the upper plate portion 111, and the lower side of the side plate portion 112 protrudes toward the vertical rib 32 side of the rail 3. The rail head 33 is bent so as to be in contact with the side surface 35 and the vertical rib 32. The rail clamping portion 12 includes an upper plate portion 121 and a side plate portion 122 extending downward from the upper plate portion 121, and the lower side plate portion 122 of this side plate portion is also protruded to the side of the vertical rib 32 of the rail 3. 33 and the vertical rib 32 are bent. Two bolt holes 113 through which bolts are inserted are provided in the upper plate portion 111 at intervals in the extending direction of the rail 3, and the bolt holes 113 are elongated in the cross-sectional direction of the rail 3, and the panel support portion The end on the 13th side is refracted. A screw hole 123 having a thread on the inner surface is provided in the upper plate portion 121 corresponding to the interval between the bolt holes 113 provided in the upper plate portion 111 of the panel mounting portion 11.

  FIG. 3 is a longitudinal sectional view showing attachment of the mounting bracket 1 and the soundproof panel 2 to the rail 3. First, in (a), the panel attachment portion 11 is attached to the rail 3, but the upper plate portion 111 and the side plate portion 112 whose lower portion protrudes toward the longitudinal rib 32 side of the rail 3 and is bent are the right half of the rail 3. The portion of the upper plate portion 111 and the side plate portion 112 that contacts the rail 3 can be prevented from being scratched and the mounting bracket 1 can be tightened to the rail 3. A packing material 4 made of an elastic body is attached. A reinforcing triangular rib 114 is provided between the panel support portion 13 and the upper plate portion 111.

  Next, in (b), the lower surface of the upper plate portion 111 of the panel mounting portion 11 is the flat surface 31 of the rail 3, and the inner surface of the side plate portion 112 is above the side surface 35 of the head 33 of the rail 3 and the vertical rib 32. Bolts 51, which are eyebolts, are brought into contact with the side surfaces with the packing material 4 interposed therebetween, and in bolt holes 113 provided in portions projecting outward from the flat surface 31 of the rail 3 of the upper plate portion 111 in the cross-sectional direction. Is inserted. The threaded portion of the inserted bolt 51 is screwed into a screw hole 123 provided in the upper plate portion 121 of the rail holding portion 12. When mounting the rail clamping portion 12 to the panel mounting portion 11, the rail clamping portion 12 is slidable along the bolt hole 113 with respect to the panel mounting portion 11 without first fastening the bolt 51 inserted into the bolt hole 113. In this state, it is preferable to move the rail holding portion 12 to the rail 3 side, bring the side plate portion 122 into contact with the vertical rib 32 and the side surface 35 of the rail 3, and tighten the bolt 51 to the screw hole 123. In the mounting bracket 1, the panel mounting portion 11 and the rail clamping portion 12 are integrated with a bolt 51, and the lower side plate portion 112 and the side plate portion 122 are projected to the vertical rib 32 side, so that strong external force is applied upward. Even if it takes, it is made not to come off from the rail 3.

  Here, if the bolt 51 is tightened so that the packing material 4 is compressed by the upper plate portion 111, the side plate portion 112, and the side plate portion 122, the mounting bracket 1 attached to the rail 3 is wobbled by the biasing force of the packing material 4. Is preferable. Further, since the bolt 51 is an eyebolt, it can be screwed, tightened, and detached by the ring portion of the eyebolt without the need of a tool, etc., so that the work at the time of installation and the work at the time of disassembly are quick and simple. Has been made.

  Finally, the soundproof panel 2 is attached to the mounting bracket 1 attached to the rail 3. The soundproof panel 2 is formed by forming a frame body 22 around the panel body 21, and the lower end of the soundproof panel 2 is placed on the panel receiving portion 14 and either the left or right side of the soundproof panel 2. A bolt 52, which is an eye bolt inserted into the vertical frame body 22, is screwed into a screw hole 131 provided in the panel support portion 13 and is fastened to be fixed to the panel support portion 13. By using eyebolts as the bolts 52, the bolts 52 can be screwed and tightened with the ring portions in the same manner as the bolts 51, and can be installed easily and quickly without the need for tools, etc. Similarly, it is possible to carry out quickly and easily by detaching with a ring portion.

  Furthermore, the upper surface of the panel receiving portion 14 is lower than the height of the lower surface of the upper plate portion 111 of the panel mounting portion 11. With this configuration, the lower end portion of the soundproof panel 2 received from below by the panel receiving portion 14 is positioned below the flat surface 31 of the rail 3, and noise from the sound source is prevented from leaking straight. It is made to be.

  The rail 3 can be easily attached to the mounting bracket 1 and the soundproof panel 2 by using a rail on which the train on the railroad track R travels. It may be used, and may be formed using an appropriate rail, such as using an existing rail-like one installed near the railroad track R other than the rail on which the train travels.

  The soundproof panel 2 is not limited to a panel body 21 made of an aluminum-resin laminate, but is provided with a sound-absorbing material to provide sound insulation and sound-absorbing properties, and a light-transmitting plate is used for daylighting. It may be provided. Further, the frame body 22 may not be formed around the panel main body 21 but only the panel main body 21 may be used alone. However, if the panel main body 21 is attached to the rail 3, an excessively heavy one may lead to the track destruction. Therefore, by using a strong and lightweight aluminum-resin laminate as the panel main body 21 and also using a high-strength and lightweight aluminum extruded profile as the frame body 22, the soundproof panel 2 is lightweight and has extremely high strength. can do.

  FIG. 4 is a front view showing the formed railway track noise barrier. The mounting bracket 1 is attached to the rail 3 at a predetermined interval such as 2 m, for example, and the soundproof panel 2 is attached via the mounting bracket 1. The soundproof panel 2 has a frame body 22 made of an extruded aluminum material around a panel body 21 made of an aluminum-resin laminate, and the soundproof panel 2 is composed of two soundproof panels 2A and 2B. A hinge 23 is attached between the frame bodies 22 so as to be rotatable in the horizontal direction. The hinge 23 can be folded by the hinge 23 to be half the area during transportation and storage, and can be unfolded when used. The upper frame member 221 of the frame 22 of the soundproof panel 2 is provided with a connection member 24 having a U-shaped cross section that is slidable in the horizontal direction and opened downward, and the connection member 24 extends along the upper frame member 221. The connection member 24 is positioned between the soundproof panels 2A and 2B so as to maintain the expanded state of the soundproof panel 2, and the bolt is an eye bolt for fixing the connection member 24. 53 is screwed to the connecting member 24 and the upper frame member 211, and the position of the connecting member 24 is fixed. Furthermore, the connection member 24 is disposed across the adjacent soundproof panels 2 so that the vicinity of the upper end of the soundproof panel 2 does not shift back and forth.

  At the time of mounting the soundproof panel 2, the soundproof panels 2A and 2B are unfolded using the hinge 23 and mounted on the mounting bracket 1 by the method described above, and then the connecting member 24 is slid in the horizontal direction so as to be soundproofed panel 2A. And the soundproof wall for a railway track having a robust structure can be formed by screwing the bolt 53 so as to be positioned so as to straddle between the adjacent soundproof panels 2.

  FIG. 5 is a side view showing another embodiment of the railway track noise barrier according to the present invention. First, in (a), the rail 3 is a rail 3 for the train to run, and the rails 3A and 3B are installed in parallel at intervals according to the gauge of the train. The soundproof panel 2 is attached to one rail 3A of the two rails via the mounting bracket 1 and is provided with a pivot shaft 62 in the middle of the soundproof panel 2 in the vertical direction. 63, and a reinforcing member 61, which is a synthetic resin pipe, is attached between the support member 64 having the same rotating shaft 62 attached to the other rail 3B and the shaft support member 63, and the soundproof panel 2 is attached. The reinforcement of was made. The reinforcing member 61 reinforces the soundproofing panel 2 that is provided between the soundproofing panel 2 and the rail 3 </ b> B and is erected from the rail 3 </ b> A, and can be easily aligned by the rotation shaft 62. It is made like that.

  FIG. 5B is a side view showing details of the vicinity of the mounting bracket 1, the shaft support member 63 and the support bracket 64. The mounting bracket 1 includes a bracket main body 15 having a U-shaped cross section so as to surround and abut on the flat surface 31 and both side surfaces 35 of the rail 3, and a panel receiving portion 14 provided integrally with the bracket main body 15. A packing material 4 is provided between the rail 3 and the inner surface of the metal fitting body 15. The mounting bracket 1 and the soundproof panel 2 are fixed by bolts 54 inserted through the frame body 22 and the panel receiving portion 14. The shaft support member 63 is an angle member having an L-shaped cross section, and one plate 631 forming the L-shaped cross section is fixed to the frame body 22 by a bolt 55, and the other plate 632 protrudes behind, A reinforcing member 61 is pivotally supported by a rotating shaft 62 that is a bolt.

  The shaft support 63 is preferably attached to the frame 22 whose strength is relatively increased in the soundproof panel 2, but may be attached to the panel body 21. Further, the reinforcing member 61 can be formed using an appropriate material. However, when the soundproof panel 2 may be electrically connected to the rail 3A, the reinforcing member 61 is formed from a conductor. Since the rail 3A and the rail 3B are electrically connected to each other by the reinforcing member 61 and the signal operation is affected, it is preferable to use an insulator such as a synthetic resin.

  The soundproof panel 2 can be attached to the rail 3A only by covering the mounting bracket 1 from above, so that the soundproof panel 2 is fixed to the mounting bracket 1 in advance and brought to the installation site and attached to the rail 3A. It is convenient and preferable to attach the reinforcing member 61 to the shaft support member 63 after the metal fitting body 15 of the fitting 1 is covered from above. In addition, you may make it use the thing which clamps the rail 3 as shown in FIG.

  The support metal fitting 64 is a metal fitting having a U-shaped cross section that opens downward. The main body 641 surrounds the flat surface 31 and both side surfaces 35 of the rail head portion 33, and the packing material 4 is formed on the inner surface forming the U-shaped cross section. It is attached and is configured to come into contact with the rail head 33 from three sides with the packing material 4 interposed therebetween. One of the main body 641 protrudes downward, and a bolt 642 that can be moved forward and backward in the direction of the vertical rib 32 is screwed. After the main body 642 is put on the rail 3B, the bolt 642 is moved to the vertical rib 32 side. The advancement is made to prevent the support fitting 64 from coming off the rail 3B.

  Further, the support fitting 64 is integrally provided with a reinforcing material attaching portion 643 for attaching a reinforcing material, and the reinforcing material 61 is rotatably attached to the reinforcing material attaching portion 643 by a rotating shaft 62 which is a bolt. Yes. The shape of the reinforcing material attaching portion 643 may be appropriate as long as the reinforcing material 61 can be attached. However, the shape of the reinforcing material attaching portion 643 is such that the end surface of the pipe-shaped reinforcing material 61 provided in a bracing manner is supported obliquely from below. If this is the case, a stable operation can be performed when the reinforcing member 61 is attached by the rotation shaft 62, which is preferable.

  In order to provide the reinforcement member 61 for the sound insulation panel 2, first, the shaft support member 63 is attached in advance to the sound insulation panel 2 standing on the rail 3 </ b> A, and the reinforcement member 61 is rotated around the shaft support member 63 by the rotation shaft 62. The support bracket 64 is attached to the other rail 3B, the reinforcing member 61 is rotated, the other end is moved to the position of the support bracket 64, and the rotation shaft 62 is inserted into the support bracket 64. Is done.

It is a side view which shows one Embodiment of the noise barrier for railroad tracks which concerns on this invention. It is a perspective view which shows an example of an attachment metal fitting. It is sectional drawing explaining the attachment of the attachment metal fitting to a rail. It is a front view which shows one Embodiment of the noise barrier for railroad tracks which concerns on this invention. It is a side view which shows other embodiment of the noise barrier for railroad tracks which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mounting bracket 11 Panel mounting part 12 Rail clamping part 2 Soundproof panel 3 Rail 31 Flat surface 32 Vertical rib 33 Head 61 Reinforcement material 10 Soundproof wall

Claims (5)

A soundproof wall for a railroad track, wherein a mounting bracket is detachably attached to a rail provided in the railroad track, and a soundproof panel is erected on the rail via the mounting bracket. The soundproof wall for a railway track according to claim 1, wherein the rail is a rail for running a train. The rail includes a head whose upper surface is a flat surface and vertical ribs that are narrower than the head, and the mounting bracket is formed using the flat surface and both side surfaces of the vertical rib. The soundproof wall for a railway track according to claim 1 or 2, wherein the soundproof wall is fixed. The rail is formed by extending at least two in parallel, the mounting bracket is attached to one of the two rails, and a reinforcing material is provided between the soundproof panel and the other rail. The noise barrier for a railway track according to any one of claims 1 to 3. 5. The railway track noise barrier according to claim 4, wherein at least a part of the one rail and the other rail is formed of an insulator and is electrically insulated. 6.

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