JP2015010355A - Sound insulation and sound absorption device for track maintenance work - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sound insulation and sound absorption device for track maintenance work that is suitable for track maintenance work for rail.SOLUTION: A sound insulation sheet 11 includes an upper pole passing part 11a through which a suspension pole 14a of sound insulation sheet support means 14 is passed; a pair of both-side pole passing parts 11b, 11b, through which a pair of column poles 14b, 14b are passed respectively, on both sides thereof; and a skirt part 11c which has such a length that even when the skirt part is fitted to the sound insulation sheet support means 14, a lower end thereof reaches a ground surface below a rail R. Further, a plurality of pockets 12a are provided on a surface of the sound insulation sheet 11 by using a net 12, sponge 13 is inserted detachably into the pocket 12a, and a sound insulation and sound absorption device is installed movably on the rail R by moving pedestal parts 14d, 14d with rollers which constitute the sound insulation sheet support means 14.

Description

  The present invention relates to a soundproofing / sound absorbing device for track maintenance work for the purpose of soundproofing and sound absorption during railway track maintenance (hereinafter abbreviated as rail).

  Various devices such as a soundproof curtain type and a soundproof wall type have been proposed as soundproofing and sound absorbing devices that perform soundproofing and sound absorption (see, for example, Patent Documents 1 to 3).

JP 2000-319821 A JP 2008-119156 A JP 2009-235761 A

  However, these soundproofing / sound absorbing devices are intended for soundproofing and sound absorption during construction work and demolition work, and are not intended for soundproofing or sound absorption during rail maintenance work. Since the relationship with the traveling vehicle was not considered, it could not be used for rail maintenance work immediately.

  In particular, since construction work and demolition work take a certain period of time, the soundproofing and sound absorbing devices for the purpose of soundproofing such as construction work and demolition work are left stationary for a certain period of time, while the track maintenance work of the rail follows the rail. There is a peculiarity that it must be done at night when the train stops for a long distance and in a short time until the first generator car departs. In addition, there are differences between double-track and single-track rails, and there are limitations such as vehicle limits and building limits.

  Accordingly, the present invention has been made paying attention to such problems, and an object thereof is to provide a soundproofing / sound absorbing device for track maintenance work that is optimal for rail track maintenance work.

In order to solve the above problems, a soundproofing / sound absorbing device for track maintenance according to the present invention comprises a soundproofing sheet provided with a pocket for detachably inserting a sound absorbing member, and a soundproofing member that is erected along a rail supporting the sound absorbing member. And a soundproof sheet supporting means.
Here, a plurality of pockets may be provided by welding or sewing a net or a net having a large number of holes to the soundproof sheet.
The soundproof sheet support means includes a suspension pole that is passed through an upper pole passage portion of the soundproof sheet and suspends the soundproof sheet, a pair of support poles that respectively support both sides of the suspension pole, and the pair of pairs A pair of moving pedestals with rollers for supporting each of the bases of the column poles, and the pair of moving pedestals with rollers are respectively provided on both sides of the base of the column poles along the rail direction. A vertical roller that contacts at least the upper surface of the part, and a pair of horizontal rollers that are provided on both sides of the base of the pole pole along the rail direction and contact at least both side surfaces of the head of the rail, Of the pair of horizontal rollers, at least one of the horizontal rollers is a flip-up roller support arm that is attached to the movable pedestal with a roller so as to be able to jump up via a rotating shaft. It may have been attached to.
The soundproof sheet supporting means is further provided between the transverse rollers in the rail direction of the movable pedestal portion with rollers, and stops the swinging of the column poles by the tip portions contacting both side surfaces of the abdomen of the rail. Further, it is further preferable to have a bracing / brake bolt that functions as a brake for the vertical roller and the pair of horizontal rollers.
Further, the soundproof sheet support means is provided on both sides of the soundproof sheet, and a pair of seat tension poles that stretch the soundproof sheet by suspending an upper end portion of the soundproof sheet and tensioning the soundproof sheet; A pair of seating bases for supporting the base portions of the poles, respectively, and the pair of seating bases are located at a predetermined distance from the vehicle running on the rail, respectively. It has a substantially L-shape so that the pole for standing is erected, and at one end of the rail side, there is provided one end side rail pressing piece that engages with the bottom of the rail. The pair of seat tensions are fixed to the rail by sandwiching the bottom of the rail from both sides with a rail presser on the other end of the clamping knob that is spaced apart by the width of the bottom of the rail. One end of the suspension wire is bound to the upper end of one of the seat tension poles, while the other end of the suspension wire is wound around the other seat tension pole and rotated to rotate the suspension pole. A winch for loosening or tensioning the lowering wire may be provided.
The soundproof sheet support means includes a suspension pole that is passed through an upper pole passage portion of the soundproof sheet and suspends the soundproof sheet, a pair of support poles that respectively support both sides of the suspension pole, and the pair of pairs You may make it have a pair of slide type base part which supports each base part of a support | pillar pole, and increases an installation area by sliding to a orthogonal direction with respect to the longitudinal direction of a rail.

  In the soundproofing / sound absorbing device for track maintenance work according to the present invention, a soundproofing sheet provided with a pocket for detachably inserting the sound absorbing member, and a soundproofing sheet supporting means for supporting the sound absorbing member and standing along the rail. Therefore, it is possible to provide a sound insulation and sound absorption device for track maintenance work that is optimal for rail track maintenance work.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partially cutaway front view of a soundproofing / absorbing device for track maintenance according to a first embodiment of the present invention. It is a side view of the sound insulation and sound absorbing device for track maintenance work of Embodiment 1. It is a front view which shows the connection state etc. of the division | segmentation type suspension pole and support | pillar pole which support the sound-insulation sheet | seat which comprises the sound-insulation and sound-absorbing apparatus for track maintenance of Embodiment 1. FIG. It is a perspective view which shows the state in which the sound absorption sponge can be attached or detached to each pocket of the soundproof sheet which comprises the soundproofing and sound absorbing device for track maintenance of Embodiment 1. FIG. (A), (b) It is the top view and front view which show the movement base part with a roller of the sound-insulation sheet | seat support means which comprises the sound-insulation and sound-absorbing device for track maintenance of Embodiment 1, respectively. (A), (b) It is a side view which shows operation | movement of the moving base part with a roller of the sound-insulation sheet | seat support means which comprises the sound-insulation / sound-absorption apparatus for track maintenance of Embodiment 1, respectively. It is a front view of the sound insulation and sound absorbing device for track maintenance work of Embodiment 2 concerning the present invention. It is an enlarged side view which shows the structure etc. of the sound-insulation sheet | seat support means which comprise the soundproofing / sound-absorbing device for track maintenance of Embodiment 2. It is a side view which shows the state which installed the soundproofing and sound-absorbing device for track maintenance of Embodiment 2. It is a front view of the sound insulation and sound absorbing device for track maintenance work of Embodiment 3 concerning the present invention. It is a side view which shows the use condition of the sound insulation and sound absorbing device for track maintenance work of Embodiment 3. (A)-(c) It is the top view, front view, and right view which show the state which the sound-insulation sheet | seat support means which comprises the sound-insulation and sound-absorbing apparatus for track maintenance of Embodiment 3 closed, respectively. It is a top view which shows the state which the sound-insulation sheet | seat support means which comprises the sound-insulation and sound-absorbing device for track maintenance work of Embodiment 3 opened.

  Hereinafter, Embodiments 1 to 3 of the soundproofing and sound absorbing device for track maintenance according to the present invention will be specifically described with reference to the drawings.

Embodiment 1. FIG.
First, the soundproofing and sound absorbing device 1 for track maintenance according to the first embodiment will be described. As shown in FIGS. 1 to 4, the sound insulation and sound absorbing device 1 for track maintenance according to the first embodiment has a horizontal width of 4400 mm having a mesh or many holes on the surface of a soundproof sheet 11 having a horizontal width of 4500 mm and a vertical width of 2500 mm. A net 12 made of a water-resistant mesh material having a width of 2100 mm is welded or sewn in the horizontal direction at intervals of 1100 mm, and the lower side is also welded or sewn to provide four pockets 12a, and a sound absorbing member is provided in each pocket 12a. The sound absorbing sponge 13 is detachably inserted, and the soundproof sheet 11 is erected along the rail R by the soundproof sheet supporting means 14 of the first embodiment. Note that the pockets 12a may be provided by welding or sewing the nets 12 having the size of the pockets 12a to the surface of the soundproof sheet 11 by the number of the pockets 12a. Of course, the number of pockets 12a may be one, but if the number of pockets 12a is plural, the size of the sound absorbing sponges 13 inserted into each pocket 12a becomes smaller, so that the sound absorbing sponges 13 are easier to handle. .

  As shown in FIGS. 3 and 4, the soundproof sheet 11 has an upper pole passage portion 11 a through which the suspension pole 14 a of the soundproof sheet support means 14 is passed, and a pair of column poles 14 b and 14 b on both sides thereof. A pair of both-side pole through-holes 11b, 11b and a skirt portion 11c whose lower end reaches the ground below the rail R even when attached to the soundproof sheet support means 14.

  The net 12 does not matter if the mesh or the size of the hole is large, but it is preferable that the net 12 has a mesh that can visually check whether or not the sound absorbing sponge 13 as a sound absorbing member is inserted into each pocket 12a. Moreover, since it uses outdoors, what has water resistance is good. However, since it is sufficient to be able to visually check whether or not the sound absorbing sponges 13 are inserted into the pockets 12a, a transparent member such as vinyl may be used. Other than the net 12 or the transparent member in which the pocket 12a is shallow so that the head of the sponge 13 protrudes.

  The sound absorbing sponge 13 is a known one and is made of a porous sponge for absorbing sound. The sound absorbing sponge 13 is wet with water such as rain water, and is easily corroded when informed for a long time.

  As shown in FIG. 3, the soundproof sheet support means 14 is passed through the upper pole passage portion 11a of the soundproof sheet 11 so as to suspend the soundproof sheet 11, and on both sides of the connected suspension pole 14a. A pair of support poles 14b, 14b that support each other, a pair of L-shaped connecting portions 14c, 14c that connect both sides of the suspension pole 14a and the pair of support poles 14b, 14b, and a pair of support poles 14b, 14b, respectively. It has a pair of movable base parts 14d and 14d with a roller of the structure as shown in FIG. 5 and FIG. 6 which supports each base part. In FIG. 3, 14a1 is a joint that connects the split-type suspension pole 14a.

  As shown in FIGS. 5 and 6, the movable pedestal portion 14 d with a roller is provided on the front and rear sides along the rail R with respect to the pole receiving portion 14 d 1 inserted into the base of the support pole 14 b and the pole receiving portion 14 d 1, A pair of vertical rollers 14d2 and 14d2 that contact at least the top surface of the head of the rail R, and a pair of vertical rollers 14d2 and 14d2 that are obliquely below each other and provided on the left and right sides of the rail R. A pair of horizontal rollers 14d31, 14d41, 14d32, 14d42 that are in contact so as to sandwich both side surfaces, and a pole receiving portion 14d1 between the horizontal rollers 14d31, 14d41 in the rail direction and the horizontal rollers 14d32, 14d42 in the moving pedestal 14d with rollers Is provided on both the left and right sides of the rail, and the tip ends abut on both sides of the abdomen of the rail R. Pillar pole 14b, together with the stop 14b runout, and a Futome brake bolt 14d5,14d6 functioning as a brake of the vertical roller 14d2,14d2 and a pair of transverse rollers 14D31,14d41,14d32,14d42.

  Here, of the pair of horizontal rollers 14d31, 14d41, 14d32, and 14d42, the horizontal roller 14d31.14d32 on at least one side (the lower side in FIG. 5A) and the anti-sway / brake bolt 14d5 are a movable base with rollers. The part 14d is attached to a flip-up roller support plate 14d73 integral with a flip-up roller support arm 14d72, 14d72 attached to the part 14d via a rotating shaft 14d71, 14d71. The flip-up roller support arms 14d72 and 14d72 are provided with lock holes 14d74 and 14d74, respectively, as shown in FIG. 6 (a). 14d11 is provided, and when the movable pedestal 14d with roller is installed on the rail R, the lock pins 14d9 and 14d9 are inserted as shown in FIGS. 5 (a), 5 (b) and 6 (b). The

  On the other hand, the lateral rollers 14d41 and 14d42 on the other side (the upper side in FIG. 5A) and the anti-shock / brake bolt 14d6 are fixed roller support arms 14d82 and 14d82 fixed to the movable pedestal 14d with rollers. It is attached to an integral fixed roller support plate 14d83.

  When the moving pedestal portion 14d with roller of the first embodiment configured as described above is attached to the rail R, the flip-up type roller support arms 14d72 and 14d72 are moved up as shown in FIG. After the base portion 14d is set on the rail R, the flip-up roller support arms 14d72 and 14d72 are lowered as shown in FIG. 6B.

  Next, after aligning the lock holes 14d74 and 14d74 of the flip-up type roller support arms 14d72 and 14d72 and the lock holes 14d11 and 14d11 on the side of the moving base portion 14d with roller, the lock pins 14d9 and 14d9 are inserted.

  Thereby, since the movable pedestal portion 14d with a roller can be attached to the rail R so as to be movable, the operator can move the sound insulation and sound absorbing device 1 for track maintenance along the rail R.

  Then, since the anti-vibration and brake bolts 14d5 and 14d6 are provided on the left and right sides of the movable pedestal portion 14d with rollers, respectively, the operator moves the sound insulation and sound absorbing device 1 for track maintenance work to an optimum place. The soundproofing / absorbing device 1 for track maintenance work can be easily and securely fixed to the rail R by tightening the anti-vibration / brake bolts 14d5 and 14d6 and sandwiching both side surfaces of the abdominal portion of the rail R at their tips. Can do.

  Therefore, in the sound insulation and sound absorption device 1 for track maintenance according to the first embodiment, a plurality of pockets 12a are provided by the net 12 on the surface of the sound insulation sheet 11, and a sound absorption sponge 13 as a sound absorption member is detachable in the pocket 12a. Since the soundproof sheet 11 is inserted and is movably provided on the rail R by the soundproof sheet support means 14 of the first embodiment, the soundproofing and sound absorbing device 1 for track maintenance can be easily moved along the rail R. It is possible to provide a soundproofing / absorbing device for track maintenance work that is optimal for track maintenance work.

  For example, in the case where the track maintenance work is performed with one of the multiple wires, when the sound insulation and sound absorbing device 1 for track maintenance according to the first embodiment is installed on the rail R of the other side immediately next running in parallel, The soundproofing / sucking device 1 for the track maintenance work of the first embodiment can be moved on the rail R of the wire, and can be used efficiently in the track maintenance work of the double track.

  Further, in the soundproofing / absorbing device 1 for track maintenance according to the first embodiment, the surface of the soundproofing sheet 11 is provided with a plurality of pockets 12a into which the sound absorbing sponges 13 can be detachably inserted. In such a case, the sound-absorbing sponge 13 that is weak against water can be removed from the pocket 12a. In this respect as well, it is possible to provide a sound insulation and sound absorbing device for track maintenance work that is optimal for track maintenance work. In particular, since the plurality of pockets 12a are provided by welding or sewing nets 12 having a mesh or a plurality of holes at predetermined intervals, the presence or absence of the sound absorbing sponge 13 in each pocket 12a can be easily visually confirmed from the outside. It can be confirmed, and forgetting to remove the sound absorbing sponge 13 can be surely prevented when it rains.

  Further, in the soundproofing / absorbing device 1 for track maintenance according to the first embodiment, the lower end portions of the plurality of pockets 12a provided on the surface of the soundproofing sheet 11 are higher than the top surface of the head of the rail R as shown in FIG. To be located. Therefore, the lower end portion of the sound absorbing sponge 13 inserted into the pockets 12a does not contact the top surface of the head of the rail R or the ground. For this reason, it is possible to reliably prevent wear and dirt at the lower end of the sound absorbing sponge 13 and inundation of the sound absorbing sponge 13 by the wet ground, so that the sound absorbing sponge 13 can be used for a long time. It is possible to provide a soundproofing / absorbing device that is optimal for track maintenance.

  Further, in the sound insulation and sound absorption device 1 for track maintenance according to the first embodiment, the length of the soundproof sheet 11 in the vertical (vertical) direction is increased so that the skirt portion 11c, which is the lower end portion of the soundproof sheet 11, reaches the ground. Therefore, it is possible to prevent noise from leaking outside from the lower side of the soundproof sheet 11, and also in this respect, it is possible to reliably prevent noise generated during the track maintenance work.

Embodiment 2. FIG.
Next, the sound insulation and sound absorbing device 1 ′ for track maintenance according to the second embodiment will be described.

  The soundproofing / sound absorbing device 1 ′ for track maintenance work of the second embodiment is different from the soundproofing / sound absorption device 1 for track maintenance work of the first embodiment only in the soundproofing sheet support means 14 ′, and the sound absorbing sponge 13 can be detachably attached to the plurality of pockets 12 a. The configuration of the soundproof sheet 11 configured to be inserted into is the same. Therefore, the soundproof sheet support means 14 ', which is a characteristic part of the soundproofing / sucking device 1' for track maintenance according to the second embodiment, will be mainly described.

  FIG. 7 is a front view of the sound insulation and sound absorption device 1 ′ for track maintenance according to the second embodiment. FIG. 8 is an enlarged right side view of the soundproof sheet supporting means 14 in the soundproofing / sound absorbing device 1 ′ for track maintenance according to the second embodiment, and FIG. 9 shows the soundproofing / sound absorbing device 1 ′ for track maintenance work according to the second embodiment as a rail. It is a side view which shows the state installed.

  As shown in FIGS. 7 to 9, the soundproof sheet support means 14 ′ of Embodiment 2 is provided on both sides of the soundproof sheet 11, and is suspended in the upper pole passage portion 11 a at the upper end of the soundproof sheet 11 by a Kepler or the like. A pair of seat tension poles 14b 'and 14c' for tensioning the soundproof sheet 11 by passing the wire 14a ', and a pair of seat tension bases 14d for supporting the base portions of the pair of seat tension poles 14b' and 14c ', respectively. ', 14d' and one end of the suspension wire 14a 'are wound around and have a winch 14e' which loosens or tensions the suspension wire 14a 'by rotating. When passing the suspension wire 14a 'through the upper pole passage portion 11a at the upper end of the soundproof sheet 11, the suspension pole 14a of the first embodiment is inserted into the upper pole passage portion 11a in advance. The suspension wire 14a 'may be passed through the pole 14a.

  Here, as shown in FIG. 7, one end of the suspension wire 14a ′ is hooked on the upper end of one of the seating poles 14b ′ and 14c ′. A stop 14b1 ′ is provided. The other seat tension pole 14c ′ is provided with a winch 14e ′ at a position about the height of the operator's hand, and a suspension wire 14a ′ is advanced and retracted smoothly with respect to the winch 14e ′ at the upper end thereof. Is provided with a roller portion 14c1 ′.

  A pair of seating bases 14d 'and 14d' are fixedly attached to the rail R, and support the base of the pair of seating poles 14b 'and 14c'. As shown in FIG. It has a substantially L-shape so as to be located at a predetermined interval from the running vehicle, that is, outside the vehicle limit line L1 and the building limit line L2. As shown in FIG. 8, the seat tension poles 14b ′ and 14c ′ may be on the inner side of the construction limit line L2, that is, on the rail R side as long as they are outside the vehicle limit line L1, but the winch 14e ′. Is provided outside the vehicle limit line L1 and the building limit line L2 in the same manner as the seating bases 14d ′ and 14d ′. As a result, it is possible to prevent the seat tension bases 14d 'and 14d' from being enlarged, and the seat tension bases 14d 'and 14d', the winch 14e 'and the like are located outside the construction limit line L2 as far as possible from the vehicle. It becomes possible to provide.

  As shown in FIG. 8, each of the sheet stretching bases 14 d ′ is configured by bending a metal plate having a predetermined width, and includes a rail engaging portion 14 d 1 ′ that engages with the bottom of the rail R, and the rail engaging portion. 14d1 ′ standing plate 14d2 ′ standing up to a position lower than the building limit line L2, horizontal plate portion 14d3 ′ extending horizontally so as not to enter the building limit line L2 from the upper end of the standing plate portion 14d2 ′, Vertical plate portion 14d4 ′ provided with pole support portions 14d41 ′ that stand in the vertical (vertical) direction so as not to enter the building limit line L2 from the flat plate portion 14d2 ′ and support the base portions of the seat tension poles 14b ′ and 14c ′. have.

  As shown in FIG. 8, the rail engaging portion 14d1 ′ is provided with one end side rail pressing piece 14d11 ′ whose front end engages with one end side of the bottom of the rail R, while the one end side rail pressing piece 14d11. The other end side rail retainer which is provided so as to be substantially spaced apart by the width of the bottom portion of the rail R and which is screwed to the rail engaging portion 14d1 ′ by the rotation of the tightening knob 14d13 ′ and presses the other end side of the rail R. 14d12 ′. Therefore, the clamping knob 14d13 'is rotated and the other end side rail presser 14d12' is moved up and down to clamp both sides of the rail R, so that the rail R can be easily attached to or detached from the rail R.

  Further, as shown in FIG. 8, the upper end of the upright plate portion 14d2 ′, that is, between the connecting portion between the upright plate portion 14d2 ′ and the horizontal plate portion 14d3 ′, and the rail engaging portion 14d1 ′ is the other end side. The first inclined reinforcing piece 14d5 ′ is provided obliquely so as not to disturb the installation of the rail presser 14d12 ′. Therefore, the first inclined reinforcing piece 14d5 ′ reinforces the space between the horizontal plate portion 14d3 ′ and the rail engaging portion 14d1 ′, and the other end side rail presser 14d12 ′ is supported by the inclined surface of the first inclined reinforcing piece 14d5 ′. It is possible to guide to the mounting place in the rail engaging portion 14d1 ′.

  In addition, a second reinforcing piece 14d6 ′ is provided between the upright plate portion 14d2 ′ and the back surface of the horizontal plate portion 14d3 ′, and a building limit is provided between the horizontal plate portion 14d3 ′ and the vertical plate portion 14d4 ′. The third inclined reinforcing piece 14d7 ′ is provided obliquely so as not to exceed the line L2. Therefore, it is possible to effectively reinforce between the upright plate portion 14d2 'and the horizontal plate portion 14d3' and between the horizontal plate portion 14d3 'and the vertical plate portion 14d4'.

  A pole support portion 14d41 'into which the base portions of the seat tension poles 14b' and 14c 'are inserted is provided above the vertical plate portion 14d4'.

  When installing the sound insulation and sound absorbing device 1 ′ for track maintenance according to the second embodiment configured as described above, first, the pair of bases for sheet tension 14d ′ and 14d ′ are separated from each other by approximately the width of the soundproof sheet 11. The base portions of the seat tension poles 14b 'and 14c' are inserted into and supported by the pole support portions 14d41 'and 14d41' of the pair of seat tension bases 14d 'and 14d', respectively.

  Here, the tip end portion of the suspension wire 14a 'passed through the upper pole passage portion 11a of the soundproof sheet 11 is hooked to the hook portion 14b1' of one of the sheet tension poles 14b 'as shown in FIG. On the other hand, since the rear end portion is wound around the winch 14e ′ of the other seat tension pole 14c ′, the operator can wind up the suspension wire 14a ′ by the winch 14e ′ as shown in FIG. The soundproof sheet 11 similar to that of the first embodiment can be quickly applied so as not to interfere with the traveling of the vehicle on the rail R on which the soundproofing / sound absorbing device 1 ′ is installed.

  Therefore, according to the soundproofing / sound absorbing device 1 ′ for track maintenance according to the second embodiment, a plurality of pockets 12a are provided by the net 12 on the surface of the soundproofing sheet 11, as with the soundproofing / sound absorbing device 1 for track maintenance. At the same time, since the sound absorbing sponge 13 is made detachable in the pocket 12a, it is possible to provide a sound insulation and sound absorbing device for track maintenance that is optimal for track maintenance in consideration of when it rains.

  In particular, in the soundproofing / absorbing device 1 ′ for track maintenance work according to the second embodiment, the soundproofing sheet support means 14 ′ and the soundproofing sheet 11 are installed at least on the outer side from the vehicle limit line L1. Unlike the sound absorbing device 1, the sound absorbing device 1 can be used by being installed on a rail on which a track maintenance vehicle such as a multiple tie tamper or a rail grinder runs. For this reason, the soundproofing / absorbing device 1 ′ for track maintenance work according to the second embodiment can be used not only with the double track but also with a single wire, unlike the soundproofing / sound absorption device 1 for track maintenance work according to the first embodiment. It is possible to provide a soundproofing / absorbing device for wire maintenance work.

  Further, in the soundproofing / sound absorbing device 1 ′ for track maintenance work of the second embodiment, unlike the soundproof sheet support means 14 ″ of the soundproofing / sound absorbing device 1 ″ for track maintenance work described below, a pair of sheet tensioning devices are used. Since the bases 14d 'and 14d' are fixed to the rail R and the soundproofing / sound absorbing device 1 'for track maintenance work is installed, the soundproofing / sucking device 1 "for the track maintenance work of the third embodiment falls more than the soundproof sheet support means 14". This makes it possible to provide a soundproofing / absorbing device for track maintenance that is difficult to wind and is resistant to wind.

Embodiment 3. FIG.
Next, the sound insulation and sound absorbing device 1 "for track maintenance according to the third embodiment will be described.

  The soundproofing / sound absorbing device 1 "for track maintenance work of the third embodiment is only the soundproofing sheet support means 14" from the soundproofing / sound absorption device 1 for track maintenance work of the first embodiment and the soundproofing / sound absorption device 1 'for track maintenance work of the second embodiment. However, the configuration of the soundproof sheet 11 in which the sound absorbing sponge 13 can be detachably inserted into the plurality of pockets 12a is the same. Therefore, the description will focus on the soundproofing sheet support means 14 ″, which is a characteristic part of the soundproofing / sound absorbing device 1 ″ for track maintenance according to the third embodiment.

  FIGS. 10 and 11 are a front view and a right side view, respectively, of the sound insulation and sound absorbing device 1 ”for track maintenance according to the third embodiment. FIGS. 12A to 12C are respectively the track retention according to the third embodiment. FIG. 13 is a plan view, a front view, and a right side view of the soundproof sheet supporting means 14 ″ in the closed state in the work soundproofing and sound absorbing device 1 ″. FIG. 13 is an enlarged view of the soundproofing and sound absorbing device 1 ″ for track maintenance work according to the third embodiment. It is a top view of the sound-proof sheet | seat support means 14 "of the state which was in a state.

  As shown in FIGS. 9 to 13, the soundproof sheet supporting means 14 ″ of the third embodiment is passed through the upper pole passage portion 11a of the soundproof sheet 11 and suspends the soundproof sheet 11, and the suspension pole 14a. A pair of column poles 14b and 14b that respectively support both sides of the rail R, and a base of the pair of column poles 14b and 14b, which are perpendicular to the longitudinal direction of the rail R by sliding in a direction orthogonal to the longitudinal direction of the rail R It has a pair of slidable pedestal portions 14d ″ and 14d ″ that secure the length in the direction. The suspension pole 14a and the column pole 14b are the same as those of the first embodiment shown in FIG.

  As shown in FIGS. 12 and 13, the pair of slide type pedestal portions 14 d ″ and 14 d ″ respectively have a main slide type pedestal portion 14 d 1 ″ whose width is increased and the installation area is increased by sliding in the expanding direction. The sub-sliding pedestal portion 14d2 ".

  That is, the main slide type pedestal portion 14d1 ″ includes a pole support portion 14d1a ″ that supports the base portion of the pair of column poles 14b and 14b, a main front plate 14d1b ″ provided with the pole support portion 14d1a ″, and a main front plate 14d1b. The main rear side plate 14d1c "provided at a predetermined interval in the slide direction from" and the main front side plate 14d1b "and the main rear side plate 14d1c" are provided at predetermined intervals in a direction orthogonal to the slide direction. And five main comb portions 14d1d ″ extending in the direction.

  The sub-sliding pedestal portion 14d2 ″ includes a main front plate 14d2b ″, a main rear plate 14d2c ″ provided at a predetermined interval in the sliding direction from the main front plate 14d2b ″, a main front plate 14d2b ″, and a main rear plate 14d2c. The four sub comb portions 14d2d "slide between the five main comb portions 14d1d" of the main slide type pedestal portion 14d1 ".

  When the sound insulation and sound absorbing device 1 "for track maintenance work of the third embodiment configured as described above is stored or transported, as shown in FIGS. 12 (a) to 12 (c), the main slide type pedestal portion 14d1" and the auxiliary slide are provided. The expression pedestal 14d2 "is brought into a contracted state.

  In use, as shown in FIG. 13, the sub-sliding pedestal portion 14d2 "is slid relative to the main sliding pedestal portion 14d1" or vice versa, so that the main sliding pedestal portion 14d1 "and the sub-sliding pedestal portion 14d2" The installation area is increased nearly twice, so that the sound insulation and sound absorption device 1 ″ for track maintenance according to the third embodiment is less likely to fall down due to wind or the like.

  In use, as shown in FIG. 12, the main slide type pedestal portion 14d1 ″ and the sub slide type pedestal portion 14d2 ″ are slid so that the installation area of the main slide type pedestal portion 14d1 ″ and the sub slide type pedestal portion 14d2 ″ is 2 If it is easy to collapse by wind etc. just by increasing it nearly twice, it is preferable to place a plurality of weights 15 ″ as shown in FIG.

  Therefore, according to the sound insulation and sound absorbing device 1 ”for track maintenance work of the third embodiment, a plurality of pockets 12a are provided on the surface of the sound insulation sheet 11 by the net 12 like the sound insulation and sound absorption device 1 for track maintenance work of the first embodiment. At the same time, since the sound absorbing sponge 13 is made detachable in the pocket 12a, it is possible to provide a sound insulation and sound absorbing device for track maintenance that is optimal for track maintenance in consideration of when it rains.

  Particularly, in the sound insulation and sound absorbing device 1 ″ for track maintenance according to the third embodiment, the soundproof sheet supporting means 14 ″ of the third embodiment including the main slide type pedestal portion 14d1 ″ and the sub slide type pedestal portion 14d2 ″ is provided. Unlike the soundproof sheet supporting means 14 ′ of the second embodiment, it is not necessary to attach to the rail R. Therefore, it is possible to easily install along the rail R, and it is possible to provide a simple soundproofing / absorbing device for track maintenance work that is easy to install. Moreover, since it is not necessary to attach to the rail R, it can be installed outside from the vehicle limit line L1 and the like in the same manner as the sound insulation and sound absorbing device 1 'for track maintenance in the second embodiment. It can be used.

1,1 ', 1 "Soundproofing / absorbing device for track maintenance work 11 Soundproofing sheet 11a Upper pole through-hole 11b Both-side pole through-hole 11c Skirt 12 Net 12a Pocket 13 Sound-absorbing sponge 14, 14', 14" Soundproofing sheet support means 14a Hanging Lowering pole 14b Support pole 14c L-shaped connecting part 14d Moving base part with roller 14d1 Pole receiving part 14d2, 14d2 Vertical roller 14d31, 14d41, 14d32, 14d42 Horizontal roller 14d5, 14d6 Anti-sway / brake bolt 14d71 Rotating shaft 14d72 Roller support arm 14d73 Pull-up roller support plate 14d74 Lock hole 14d82 Fixed roller support arm 14d83 Fixed roller support plate 14d9 Lock pin 14a 'Hanging wire 14b', 14c 'Seat tension pole 1 d 'Seat tension base 14e' Winch 14d "Sliding base 14d1" Main slide base 14d1a "Pole support 14d1b" Main front plate 14d1c "Main rear plate 14d1d" Main comb 14d2 "Sub slide base 14d2b" Main front plate 14d2c "Main rear plate 14d2d" Sub comb 15 "Weight

Claims (6)

A soundproof sheet provided with a pocket for detachably inserting the sound absorbing member;
A soundproofing / sound absorbing device for track maintenance, comprising soundproofing sheet supporting means for supporting the sound absorbing member and standing along a rail. In the sound insulation and sound absorbing device for track maintenance work according to claim 1,
A plurality of the pockets are provided with a mesh or a plurality of holes having a plurality of holes by welding or sewing to the soundproof sheet. In the soundproofing / absorbing device for track maintenance according to claim 1 or 2,
The soundproof sheet supporting means is
A suspension pole that is passed through the upper pole passage portion of the soundproof sheet and suspends the soundproof sheet,
A pair of support poles that respectively support both sides of the suspension pole;
A pair of movable pedestals with rollers for supporting the bases of the pair of support poles,
Each of the pair of movable pedestals with rollers is
A vertical roller provided on both sides of the base of the pole pole along the rail direction and in contact with at least the upper surface of the head of the rail;
A pair of transverse rollers provided on both sides of the base of the pole pole along the rail direction and in contact with each other so as to sandwich at least both sides of the head of the rail;
Among the pair of horizontal rollers, at least one of the horizontal rollers is attached to a flip-up roller support arm that is attached to a movable pedestal with a roller so as to be able to jump up via a rotation shaft. Sound insulation and sound absorption equipment for track maintenance. In the sound insulation and sound absorbing device for track maintenance work according to claim 3,
The soundproof sheet supporting means further includes:
Provided between the transverse rollers in the rail direction in the movable pedestal with rollers, and the tip end abuts on both side surfaces of the abdomen of the rail to stop the swing of the column pole, and the brakes of the vertical roller and the pair of horizontal rollers A soundproofing / absorbing device for track maintenance, characterized by having anti-vibration and brake bolts that function as In the soundproofing / absorbing device for track maintenance according to claim 1 or 2,
The soundproof sheet supporting means is
A pair of seat tension poles that are provided on both sides of the soundproof sheet, and stretch the soundproof sheet by suspending an upper end portion of the soundproof sheet;
A pair of seating bases for supporting the bases of the pair of seating poles,
The pair of seating bases are respectively
The pair of seat tension poles has a substantially L-shape so that the pair of seat tension poles are erected from a position deviated by a predetermined distance from the vehicle running on the rail, and the rail-side front end portion is connected to the bottom of the rail. One end side rail presser piece is provided, and the bottom of the rail is clamped from both sides by the other end side rail presser of the tightening knob that is provided to be separated from the one end side rail presser piece by the width of the bottom of the rail. Fixed to the rail,
One end of the suspension wire is bound to the upper end of one of the pair of seat tension poles, while one end of the suspension wire is wound around the other seat tension pole and rotated. A soundproofing / sound absorbing device for wire maintenance work, wherein a winch for loosening or tensioning the hanging wire is provided. In the soundproofing / absorbing device for track maintenance according to claim 1 or 2,
The soundproof sheet supporting means is
A suspension pole that is passed through the upper pole passage portion of the soundproof sheet and suspends the soundproof sheet,
A pair of support poles that respectively support both sides of the suspension pole;
Soundproofing and sound absorbing for track maintenance, comprising a pair of sliding pedestal portions that support the base portions of the pair of support poles and increase the installation area by sliding in a direction perpendicular to the longitudinal direction of the rails apparatus.

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