KR101922754B1 - Noise insulation device for rail - Google Patents

Noise insulation device for rail Download PDF

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Publication number
KR101922754B1
KR101922754B1 KR1020147013173A KR20147013173A KR101922754B1 KR 101922754 B1 KR101922754 B1 KR 101922754B1 KR 1020147013173 A KR1020147013173 A KR 1020147013173A KR 20147013173 A KR20147013173 A KR 20147013173A KR 101922754 B1 KR101922754 B1 KR 101922754B1
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South Korea
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fixing member
rail
horizontal
soundproofing
fixing
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KR1020147013173A
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Korean (ko)
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KR20140093683A (en
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고지 이치하라
다카시 오구치
요시후미 마츠다
마사유키 이시이
아츠시 야마다
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세키스이가가쿠 고교가부시키가이샤
쇼요 산교 가부시키가이샤
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
    • E01B19/003—Means for reducing the development or propagation of noise

Abstract

The present invention eliminates the need for a tool for fixing a bolt and fixing a screw, thus improving the labor and complexity of the construction, reducing the portion protruding from the rail, and interfering with the maintenance of the track And it is an object of the present invention to provide a soundproofing device for a rail which is solved. The soundproofing device (1) of the rail includes a first soundproofing member (2), a second soundproofing member (3) and a fixture (7). The fixture 7 is composed of a first fixing member 8 and a second fixing member 9. The first fixing member 8 includes a horizontal portion 41 which is inserted below the lower surface of the rail bottom portion and a lower portion 41 which is connected to the end portion of the horizontal portion 41 and is allocated to the sound insulating cover 13 of the first soundproofing member 2 And has a rising portion 42. The second fixing member 9 includes a horizontal portion 51 which is inserted below the lower surface of the rail bottom portion and a rising portion 51 which is connected to the end portion of the horizontal portion 51 and is allocated to the sound insulating cover 16 of the second soundproofing member 52). The first fixing member 8 and the second fixing member 9 are detachably fitted.

Figure 112014047638287-pct00012

Description

{NOISE INSULATION DEVICE FOR RAIL}

The present invention relates to a soundproofing apparatus for a rail, and more particularly to a soundproofing apparatus for a rail provided with a fixture for fixing a soundproofing member to a rail.

A soundproofing device for a rail having a fixing member for fixing a soundproofing member to a rail, the soundproofing device comprising a sound absorbing mat and a sound insulating cover, A second soundproofing member having a member, a sound-absorbing mat, and a sound-insulating cover attached to a required portion of the surface of the rail from the other side surface and a fixture for fixing the sound-insulating member.

In the patent documents 1 and 2, the fastener is composed of two fastening members, and these fastening members are overlapped on the side of the lower surface of the rail bottom to be fixed with bolts. In Patent Document 3, the fastener is fixed by a screw.

Patent Document 1: Japanese Patent Application Laid-Open No. 2007-224700 Patent Document 2: Japanese Patent Application Laid-Open No. 2006-2442 Patent Document 3: Japanese Patent Application Laid-Open No. 2008-95408

In the technique disclosed in Patent Document 3, there is a problem that a tool for fixing a screw is required and workability is poor. According to the patent documents 1 and 2, since the bolts are fixed, the workability is good compared with the screw fixation, but a tool is required for the construction. Further, since the overlapped portion for fixing the bolt projects more than the rail, .

It is an object of the present invention to provide a railway vehicle which does not require a bolt fixing or a tool for fixing a screw and thus can improve the labor and complexity of the construction and reduce the portion protruding from the rail, And to provide a soundproofing device for a rail which solves the problem.

A soundproofing apparatus for a rail according to the present invention comprises a first soundproofing member having a sound absorbing mat and a sound insulating cover attached to a required portion of a surface of a rail from one side surface thereof, And a fixing member for fixing the sound-insulating member, wherein the fixing member comprises a first fixing member and a second fixing member, and the fixing member is made of a first fixing member and a second fixing member, 1 fixing member has a horizontal portion inserted into the lower surface of the rail bottom portion and a rising portion assigned to the sound insulating cover of one sound insulating member formed continuously to the end portion of the horizontal portion, And a rising portion which is connected to an end portion of the horizontal portion and is assigned to the sound insulating cover of the other soundproofing member, At least one convex portion is formed on one fixing member and the other fixing member is provided with a concave portion to be fitted to the convex portion so that the first fixing member and the second fixing member overlap each other And is detachably fitted thereinto.

In order to fix the two soundproofing members using the two fixing members, it is usually necessary to form a mating portion on each fixing member and to connect the mating portions with each other by means of bolts. However, The first fixing member and the second fixing member are detachably fitted to each other so that the fastening by the bolt and the fitting of the fixing member for the bolt can be eliminated. This eliminates the need for a tool for bolt fixation and screw fixation, thereby improving the workload and complexity of the construction, reducing the number of protruding portions compared to the rail, and preventing the problem of obstructing the track maintenance can do.

It is preferable that the portion protruding from the rail is within 10 mm from the rail bottom. By fixing the two fixtures using the above-described two fixtures, this condition can be easily satisfied.

In order to make the structure detachably fitted, for example, at least one convex portion is formed on one (the horizontal portion and / or the rising portion) of the first and second fixing members and the other convex portion So that a concave portion to be fitted is formed. The number and shape of the convex portion and the concave portion are not particularly limited and may be, for example, one convex portion on one side and one concave portion on the other side, and two convex portions on one side and two concave portions on the other side And one convex portion and one concave portion may be formed on one side, and one concave portion and one convex portion may be formed on the other side. Further, one side may be a waveform, a saw blade or the like, and the other side may be a waveform, a saw blade or the like corresponding thereto. The concave portion is not necessarily required to have a bottom surface in contact with the tip end surface of the convex portion, and may be in the form of a hole or a slit.

It is preferable that at least one of the first and second fixing members is provided with a bent portion which is formed at an end portion of the semi-rising portion side of the horizontal portion and restricts the movement of the fixing member toward the rising portion side.

According to the fixing member in which the bent portions are formed, since the soundproofing members can be sandwiched between the both sides of the rail bottom face portion in the rising portions and the bent portions, it is possible to fix them to some extent without the other fixing members, It is possible to further secure the fixing by the combination with the fixing member of the fixing member.

It is preferable that the bent portion is formed on the second fixing member and is in contact with the rising portion of the first fixing member from the outside. By doing so, both of the first and second fixing members are prevented from moving in the direction orthogonal to the rails, and the fixing is strengthened.

It is preferable that the first convex portion of the at least one convex portion is formed on the outer surface of the rising portion of the first fixing member and the first concave portion is formed on the bent portion of the second fixing member to fit the first convex portion Do. In this way, in addition to the effect of preventing the movement of the respective fixing members in the direction orthogonal to the rails by the bent portions, the movement of the respective fixing members in the direction orthogonal to the rails due to the fit between the first convex portions and the first concave portions It is possible to obtain an effect of preventing an increase in the thickness of the film.

The second convex portion of the at least one convex portion is formed so as to protrude in the horizontal direction from the end portion of the semi-rising portion side of the horizontal portion of the first fixing member, and the second concave portion fitted to the second convex portion And it is preferably formed at the lower end of the rising portion. With this arrangement, the relative movement of the rails of the respective fixing members in the longitudinal direction is reliably prevented by the engagement of the two convex portions and the two concave portions, and the positioning is reliably performed.

The method for attaching the soundproofing device of the above-described rail to the rail in which the second convex portion and the second concave portion are fitted is characterized in that the horizontal portion of the first fixing member is inserted from the one side of the rail downward The horizontal portion of the second fixing member is inserted below the horizontal portion of the first fixing member from the other side of the rail, and the second recess of the second fixing member is inserted into the first fixing member The gap between the end of the horizontal portion of the first fixing member and the end of the rising portion of the first fixing member and the end of the rising portion of the second fixing member do not exist, A step of providing a second fixing member so as to have a clearance between the end portions on the side of the bending portion of the horizontal portion of the fixing member and a step of setting the other end side of the tool as a point The end portion of the horizontal portion of the first fixing member on the side of the rising portion and the end of the second portion of the second fixing member are brought into contact with the end of the horizontal portion of the second fixing member, And removing the gap between the end portions on the bending portion side of the fixing member.

The first convex portion of the at least one convex portion is formed in the horizontal portion of either one of the first and second fixing members and the first convex portion is formed in the horizontal portion of the other fixing member, A concave portion may be formed.

In this case, the horizontal portion of either one of the first and second fixing members guides the other horizontal portion when overlapping with the other horizontal portion, and the movement in the longitudinal direction of the other horizontal portion rail after overlapping is regulated It is preferable that a guide portion is formed.

In this way, when the first fixing member and the second fixing member are fitted to each other, they are guided by the guide portion, thereby preventing displacement and facilitating fitting. Further, by fitting the guide portion and the horizontal portion, And the second fixing member are more difficult to separate.

More preferably, a convex portion is formed on the horizontal portion of either one of the first and second fixing members, and the other horizontal portion is provided with a concave portion fitted to the convex portion, A bent portion, and a guide portion. With this arrangement, relative movement between the both fixing members is suppressed by the engagement of the convex portion and the recessed portion, movement of the first fixing member in the rail width direction is suppressed by the bent portion, The movement of the second fixing member in the longitudinal direction of the rail is suppressed and the engagement between the first fixing member and the second fixing member becomes strong and the fixing of the soundproof member becomes very strong.

The sound insulating cover may be formed in a flat plate shape placed on the upper side of the rail abdomen portion and the upper end surface of the rail bottom portion and the sound insulating cover may have an inclined portion extending from the rail upper end portion to the upper end surface of the rail bottom portion, And a horizontal portion extending from the lower end in the vertical direction along the lower surface of the rail bottom portion. The sound-absorbing mat may be formed on both the inclined portion and the horizontal portion. The former has an advantage that the structure of the soundproof member can be simplified. The latter has an advantage that the soundproof effect is further improved by the sound absorbing mat and the sound insulating cover formed on the bottom surface of the rail bottom.

It is preferable that the vertical portion of the sound insulating cover is provided with a convex portion for preventing the deviation of each fixing member in the rail direction. In this way, the rail can be surely prevented from being displaced in the longitudinal direction.

The sound-absorbing mat preferably comprises at least one of a fibrous sound-absorbing material, a resin foam-like sound-absorbing material, an open-cell foam sound-absorbing material, an inorganic porous sound-absorbing material and an inorganic particle sintered sound- A sound absorbing material such as glass wool and rock wool, a resin foam sound absorbing material such as a urethane foam, an EPDM foam, and a polyethylene foam is more preferable.

It is preferable that the sound insulating cover is made of at least one of a metal plate, a resin plate and an inorganic plate. Considering workability, long-term durability and mechanical strength, it is more preferable to use a corrosion-resistant steel sheet such as a galvalume steel sheet or a hot-dip zinc-aluminum-magnesium alloy coated steel sheet.

The surface density and the thickness of the sound insulating cover are not particularly limited, but the surface density is preferably 0.5 to 15 kg / m 2 and the thickness is preferably 0.1 to 2.0 mm.

Although the length of the sound insulating cover is not particularly limited, it is preferable that the length of the sound insulating cover is 600 to 650 mm when a single sound insulating cover is installed for each sleeping interval, for a general sleeping interval of 550 to 600 mm. The variation of the sleeping interval of the actual construction site occurs by about 50 mm, and by setting the interval of 600 to 650 mm for the site of 550 to 600 mm, it is possible to construct without gap by overlapping the adjacent covers. In consideration of the overlapping of the soundproof covers as described above, the thickness of the soundproof cover is preferably about 0.1 to 2.0 mm, as described above.

The position at which the upper edge of the sound insulating cover contacts the rail surface is not particularly limited as long as it does not reach the building limit formed in the horizontal direction at a position of 38 mm below the upper surface of the rail head, A position in contact with the rail surface at a position of 42 to 62 mm in the lower side is preferable.

A vibration damping sheet may be interposed between the sound-absorbing mat and the sound-deadening cover. The vibration damping sheet in this case preferably has a loss coefficient of 0.1 or more, for example, a two-layer structure of a vibration damping resin layer and a constraint layer.

According to the soundproofing apparatus of a rail of the present invention, the first fixing member has a horizontal portion inserted into the lower surface of the rail bottom portion and a rising portion formed in the end portion of the horizontal portion and assigned to the soundproof cover of one soundproofing member, The fixing member has a horizontal portion inserted into the lower surface of the rail bottom portion and an upstanding portion formed in connection with the end portion of the horizontal portion and assigned to the soundproof cover of the other soundproofing member, It is possible to improve the labor and complexity of the construction and to reduce the portion protruding from the rail so as to reduce the height of the rail, It is possible to solve the problem of being disturbed at the time of maintenance.

1 is a cross-sectional view showing a first embodiment of a soundproofing apparatus for a rail according to the present invention.
2 is a perspective view showing the first fixing member of the fixing member of the soundproofing device of the rail of the first embodiment.
3 is a perspective view showing a second fixing member of the fixing member of the soundproofing device of the rail of the first embodiment.
4 is a view showing a method of attaching a soundproofing device of a rail according to the first embodiment.
5 is a side view showing a preferred embodiment of a sound-deadening cover in a soundproofing apparatus for a rail according to the first embodiment.
6 is a perspective view showing a preferred embodiment of a sound-insulating cover in a soundproofing apparatus for a rail according to the first embodiment.
7 is a sectional view showing a second embodiment of a soundproofing apparatus for a rail according to the present invention.
8 is a perspective view showing the first fixing member of the fixing member of the soundproof apparatus of the rail according to the second embodiment.
9 is a perspective view showing the second fixing member of the fixing member of the soundproofing device of the rail according to the second embodiment.
10 is a cross-sectional view showing a reference example of a soundproofing apparatus for a rail according to the present invention.
11 is a perspective view showing a fixing device of the soundproofing device of the rail of the reference example.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In the following description, the up and down, left and right are referred to as up, down, left and right in Fig.

1 shows a first embodiment of a soundproofing apparatus for a rail according to the present invention. The soundproofing apparatus 1 of the rail includes a first portion (a first side) A second soundproofing member 3 attached to a required portion of the surface of the rail R from the right side (the other side surface), a first soundproofing member 3 for fixing the soundproofing member 2, And a fastener (7) made up of a fastening member (8) and a second fastening member (9).

Each of the soundproofing members 2 and 3 is constituted by the sound absorbing mat 11 and 14, the damping sheets 12 and 15 and the sound insulating covers 13 and 16 which are superimposed in layers from the inside in order.

Each of the soundproofing members 2 and 3 is constituted by the sound absorbing mat 11 and 14, the damping sheets 12 and 15 and the sound insulating covers 13 and 16 which are superimposed in layers from the inside in order.

Each of the sound absorbing mats 11 and 14 includes abdomen sound absorbing mats 11a and 14a extending from the middle of the lateral height of the rail abd portion Rw to the center in the widthwise upper direction of the rail bottom portion Rb, Absorbing mat 11b and 14b, which are assigned from below. The abdomen sound absorbing mat 11a and 14a are shown not to be rectangular in cross section but to be cut from a rectangle at a portion in contact with the rail R. This is pressed against the rail R, So as to be compressed. The thickness of the bottom sound-absorbing mat 11b, 14b is compressed to about one-half of the thickness at the time of release by attaching to the rail (R).

The vibration damping sheets 12 and 15 have the same size (area) as that of the sound absorbing mats 11 and 14 and are formed by dividing the damping vibration damping sheets 12a and 15a and the bottom vibration damping sheets 12b and 15b.

The sound insulation covers 13 and 16 are formed by inclined portions 13a and 16a extending from the vicinity of the upper end of the lateral height of the rail abd portion Rw to near the top end of the rail bottom portion Rb and the inclined portions 13a and 16a extending from the lower ends of the inclined portions 13a and 16a Vertical portions 13b and 16b extending downward along the side surface of the rail bottom portion Rb and horizontal portions 13c and 13b extending from the lower ends of the vertical portions 13b and 16b along the lower surface of the rail bottom portion Rb toward the center of the rail , 16c.

A slight gap is formed between the horizontal portions 13c and 16c of the respective sound insulating covers 13 and 16 and the end faces of the horizontal portions 13c and 16c of the sound insulating covers 13 and 16, The end faces of the lower vibration damping sheets 11b and 14b and the end faces of the lower vibration damping sheets 12b and 15b are substantially the same.

In this embodiment, the first fixing member 8 is first installed from the right side, and then the second fixing member 9 is installed from the left side.

2, the first fixing member 8 includes a horizontal portion 41 which is inserted into the lower side of the rail bottom portion Rb and a second soundproofing member which is connected to the right end portion of the horizontal portion 41 And the rising portion 42 is assigned to the sound-insulating cover 16 of the main body 3.

The horizontal portion 41 is provided on both sides of the horizontal portion 13c of the sound insulating cover 13 of the first soundproofing member 2 and the horizontal portion 16c of the sound insulating cover 16 of the second sound insulating member 3 Lt; / RTI >

The rising section 42 is constituted by a vertical section 42a superposed on the vertical section 16b of the sound insulating cover 16 and an inclined section 42b superimposed on the slanted section 16a of the sound insulating cover 16 . The upper end position of the inclined portion 42b is substantially the same as the upper end position of the abdomen sound absorbing mat 14a of the second soundproofing member 3. [

3, the second fixing member 9 includes a horizontal portion 51 which is inserted below the lower surface of the rail bottom portion Rb and a second soundproof member which is connected to the right end portion of the horizontal portion 51, And a rising portion 52 which is assigned to the sound-shielding cover 13 of the main body 1 and 2.

The horizontal portion 51 is superimposed on the horizontal portion 41 of the first fixing member 8 from below. The rising section 52 is composed of a vertical section 52a superimposed on the vertical section 13b of the sound insulating cover 13 and an inclined section 52b superimposed on the slanted section 13a of the sound insulating cover 13 . The upper end position of the inclined portion 52b is substantially the same as the upper end position of the abdomen sound absorbing mat 11a of the first soundproofing member 2. [

The second fixing member 9 is formed at the right end portion of the horizontal portion 51 (the end portion on the semi-rising portion side) and contacts the vertical portion 42a of the rising portion 42 of the first fixing member 8 from the outside A bent portion 53 is formed. The upper end portion of the bent portion 53 is formed to curve outward. The upper end position of the bent portion 53 is equal to or smaller than the height of the rail bottom portion Rb. When the second fixing member 9 is installed from the left side in Fig. 1, it is moved to the right (depth side) of the rail R because the upper end position of the bent portion 53 is equal to or smaller than the height of the rail bottom Rb And it is possible to easily perform the installation work.

A rectangular convex portion (second convex portion) 44 is formed at the left end portion of the horizontal portion 41 of the first fixing member 8 and has a narrow width and protruded in the horizontal direction. A square through hole (second recess) 54 is formed at the lower end of the vertical portion 52a of the second fixing member 9 so as to fit into the convex portion 44 of the first fixing member 8 have.

An approximately hemispherical convex portion (first convex portion) 45 is formed in the vertical portion 42a of the rising portion 42 of the first fixing member 8. A circular through hole (first recess) 55 is formed in the bent portion 53 of the second fixing member 9 so as to fit into the substantially hemispherical convex portion 45. The first fixing member 8 and the second fixing member 9 are detachably fitted to each other by the fitting of the two convex portions 44 and 45 and the two through holes 54 and 55, It is set.

The horizontal portion 41 of the first fixing member 8 is provided with a rubber cushion portion 46 which contacts the horizontal portions 13c and 16c of the sound insulation covers 13 and 16 of the two soundproofing members 2 and 3 Is formed. The inclined portion 42b of the rising portion 42 of the first fixing member 8 is formed with an elastic member such as a rubber made of rubber which is in contact with the upper portion of the inclined portion 16a of the sound insulating cover 16 of the second soundproofing member 3. [ A cushion portion 47 is formed. The inclined portion 52b of the rising portion 52 of the second fixing member 9 is provided with a rubber cushion portion 54b which is in contact with the upper portion of the slanting portion 13a of the sound insulating cover 13 of the first soundproofing member 2, (57) are formed.

Each of the vibration damping sheets 12 and 15 includes vibration damping resin layers 17 and 19 bonded to the back surfaces of the sound insulating covers 13 and 16 and vibration damping resin layers 17 and 19 And a steel sheet 18, 20 having a thickness of 0.27 mm as a constraint layer joined to the steel sheet 18.

According to the soundproofing apparatus 1 of the rail of the first embodiment, since the first fixing member 8 for fixing the soundproofing members 2 and 3 and the second fixing member 9 are fitted to each other by fitting, It is not necessary to provide a tool for bolt fixing or screw fixing, and therefore it is possible to improve the labor and labor of construction. The bent portion 53 of the second fixing member 9 prevents the second fixing member 9 from moving to the left and prevents the first fixing member 8 from moving to the right Therefore, it is not easily fallen out.

The projections 44 of the horizontal portion 41 of the first fixing member 8 and the through holes 54 of the vertical portion 52a of the second fixing member 9 corresponding to the projections 44 ) Can be omitted. In this case, the left end face of the horizontal portion 41 of the first fixing member 8 contacts the vertical portion 52a of the second fixing member 9, and in this state, The convex portion 45 of the second fixing member 9 and the through hole 55 of the bent portion 53 of the second fixing member 9 are fitted.

A method of attaching the soundproofing apparatus 1 of the rail according to the first embodiment to the rail R is shown in Fig.

In order to attach the soundproofing device 1 of the rail according to the first embodiment to the rail R, first of all, as shown in Fig. 4 (a), the sound absorbing mats 11b, 14b are in contact with the bottom surface of the rail bottom Rb and when the horizontal portion 41 of the first fixing member 8 is inserted from the right side of the rail R to the rail bottom portion Rb, The fixing member 8 is provided. By assigning the horizontal portion 41 of the first fixing member 8 to the lower surface of the rail bottom portion Rb, the first fixing member 8 is substantially identical to the first fixing member 8 as shown in Fig. 4 (b) Lt; / RTI > Subsequently, the second fixing member 9 is provided. At this time, the second fixing member 9 is provided with a bent portion 53 (not shown) between the horizontal portions 41, 51 so that the bent portion 53 does not interfere with the horizontal portion 41 of the first fixing member 8 The lower portion of the rail bottom portion Rb is inserted downward. The through hole (second recess) 54 of the second fixing member 9 is fitted to the convex portion (first convex portion) 44 of the first fixing member 8. 4 (c), in this state, in the right end portion of the horizontal portion 41 of the first fixing member 8, in the middle of the bent portion 53 of the second fixing member 9, Parts interfere, and it can not be tightly fitted tightly. Therefore, there is no gap between the left end (the end on the semi-rising portion side) of the horizontal portion 41 of the first fixing member 8 and the left end (the end on the rising portion) of the second fixing member 9, There is a gap between the right end portion (the end portion on the rising portion side) of the horizontal portion 41 of the fixing member 8 and the right end portion (the end portion on the semi-rising portion side) of the second fixing member 9. Thus, the rod-shaped tool 60 is used to set the left-hand side 60a of the tool 60 as a point and the right-hand side 60b of the tool 60 as an inverted point, (The end portion on the side of the bending portion) of the horizontal portion 51 of the second fixing member 9 from the lower side and a force is applied to the upper end side 60b The clearance between the right end portion of the horizontal portion 41 of the fixing member 8 and the right end portion of the second fixing member 9 is removed. 4 (d), the convex portion (first convex portion) 45 of the first fixing member 8 and the through hole (first concave portion) of the second fixing member 9 The first fixing member 8 and the second fixing member 9 are firmly engaged and the rail R is fixed so that the soundproofing device 1 of the rail does not come off the rail R. [ Respectively.

5, in the soundproofing apparatus 1 of the rail according to the first embodiment, in order to prevent the fixture 7 from moving in the longitudinal direction of the rail R, It is preferable to form the convex portion 61 so as to sandwich the fastener 7 between the both sides of the rail R in the longitudinal direction. 6 (a), the convex portion may be a convex portion 61 having a shape in which the hemisphere is cut in half, and as shown in Fig. 6 (b), the convex portion 62 Or may be a hemispherical convex portion 63 as shown in Fig. 6 (c). In the case of the protruding portion 61 having a shape in which the hemispheres are cut in half, the cut surface is formed so as to face the fixture 7, as shown in Fig.

7 shows a second embodiment of a soundproofing apparatus for a rail according to the present invention. The soundproofing apparatus 1 of the rail includes a rail (R) A second soundproofing member 3 attached to a required portion of the surface of the rail R from the right side (the other side surface side), a first soundproofing member 3 for fixing the soundproofing member 2, And a fixture 4 composed of a fixing member 5 and a second fixing member 6. [

Each of the soundproofing members 2 and 3 is the same as that of the first embodiment, and is denoted by the same reference numeral as the first embodiment, and the description thereof is omitted.

8, the first fixing member 5 includes a horizontal portion 21 inserted into the lower surface of the rail bottom portion Rb and a first soundproof member (not shown) formed so as to extend from the left end portion of the horizontal portion 21, And an erecting part 22 which is assigned to the inclined part 13a of the sound-insulating cover 13 of the main body 1 or 2. The horizontal portion 21 is provided on both the horizontal portion 13c of the sound insulating cover 13 of the first soundproofing member 2 and the horizontal portion 16c of the sound insulating cover 16 of the second sound insulating member 3 Lt; / RTI > The upper end position of the rising portion 22 is substantially the same as the upper end position of the abdomen sound absorbing mat 11a of the first soundproofing member 2. [

9, the second fixing member 6 includes a horizontal portion 31 inserted into the bottom surface of the rail bottom portion Rb and a second soundproofing member (not shown) extending from the right end portion of the horizontal portion 31 And an upstanding portion 32 which is assigned to an inclined portion 16a of the sound insulating cover 16 of the main body 1 and 2. The horizontal portion 31 is superimposed on the horizontal portion 21 of the first fixing member 5 from below. The upper end position of the rising portion 32 is substantially the same as the upper end position of the abdomen sound absorbing mat 14a of the second soundproofing member 3. [

The first fixing member 5 is provided with a bent portion 23 which is formed at the right end portion of the horizontal portion 21 (end portion on the half-rising portion side) and restricts the movement of the first fixing member 5 to the left Is formed. The upper end position of the bent portion 23 is equal to or less than the height of the rail bottom portion Rb. The first fixing member 5 is provided from the left side in Fig. 7 and at this time, since the upper end position of the bent portion 23 is equal to or smaller than the height of the rail bottom Rb, It is easy to carry out the installation work.

A convex portion (first convex portion) 24 is formed in the vicinity of the left end portion of the lower surface of the horizontal portion 21 of the first fixing member 5, the height of which is lowered with the rectangular shape being rightward. The horizontal portion 31 of the second fixing member 6 is formed with a rectangular through hole (first recessed portion) 34 to be fitted to the convex portion 24 of the first fixing member 5. The first fixing member 5 and the second fixing member 6 are detachably fitted by the engagement of the convex portion 24 and the through hole 34. [

A guide portion 25 is formed along both edges of the horizontal portion 21 at the right end portion of the horizontal portion 21 of the first fixing member 5. The guide portion 25 is composed of an opposing wall 25a formed at both edges of the horizontal portion 21 so as to protrude downward and the interval between the opposing walls 25a is set to be equal to the distance between the horizontal portion 25a of the second fixing member 6 (31). When the horizontal portion 21 of the first fixing member 5 and the horizontal portion 31 of the second fixing member 6 are overlapped with each other, The movement of the horizontal portion 31 of the second fixing member 6 in the longitudinal direction of the rail is regulated after being superposed on the guide portion 25 of the first fixing member 5 and prevented from being displaced.

The horizontal portion 21 of the first fixing member 5 is provided with a rubber cushion portion 26 which is in contact with the horizontal portions 13c and 16c of the sound insulation covers 13 and 16 of the two sound- Is formed. The rising portion 22 of the first fixing member 5 is provided with a cushion portion 27 made of rubber which is in contact with the upper portion of the inclined portion 13a of the sound insulating cover 13 of the first soundproofing member 2 Respectively. The rising portion 32 of the second fixing member 6 is formed with a cushion portion 37 made of rubber which is in contact with the upper portion of the inclined portion 16a of the sound insulating cover 16 of the second soundproofing member 2 have.

According to the soundproofing apparatus 1 of the rail of the second embodiment, since the first fixing member 5 for fixing the soundproofing members 2 and 3 and the second fixing member 6 are fitted to each other by fitting, It is not necessary to provide a tool for bolt fixing or screw fixing, and therefore it is possible to improve the labor and labor of construction. In order to detachably fit the first fixing member 5 and the second fixing member 6, the convex portion 24 of the horizontal portion 21 of the first fixing member 5 and the convex portion 24 of the second fixing member (Concave portion) 34 of the horizontal portion 31 of the first fixing member 5 is not limited to the fitting of the through hole (concave portion) 34 of the horizontal portion 31 of the first fixing member 5 and the concave portion is formed in the horizontal portion 21 of the first fixing member 5, 6 may be formed on the upper surface of the horizontal portion 31, and the numbers and shapes of the convex portions and the through holes (concave portions) may be changed.

The bent portion 23 and the guide portion 25 are formed in the first fixing member 5 but the guide portion 25 of the first fixing member 5 is removed so that the guide portion is fixed to the second fixing member 6 Alternatively, the guide portion 25 of the first fixing member 5 may be removed so that the second fixing member 6 may be formed with a bent portion. It is also possible to eliminate the fitting of the convex portion 24 of the horizontal portion 21 of the first fixing member 5 and the through hole (concave portion) 34 of the horizontal portion 31 of the second fixing member 6 The first fixing member 5 and the second fixing member 6 are engaged with each other only by fitting the guide portion 25 of the first fixing member 5 and the horizontal portion 31 of the second fixing member 6 Or the like.

In this case, the sound-absorbing mat 11, 14 may be formed only of the abdomen sound-absorbing mat 11a, 14a. In this case, the sound-insulating cover is formed in a flat plate shape placed on the side surfaces of the rail- It may be.

In the above, the vibration damping sheets 12, 15 increase the soundproof effect by suppressing the vibration of the sound insulating covers 13, 16. However, even if the vibration damping sheets 12, 15 are omitted, the vibration damping mats 11a, 14a, The sound-absorbing mat 11, 14 formed by dividing the mat 11b, 14b and the sound-insulating covers 13, 16 covering them can exhibit excellent sound-proofing performance.

Fig. 10 shows a reference example for simplifying the soundproofing device of the rail of the above-described embodiment. The soundproofing device 10 of this rail includes a first soundproofing member 2 attached to a required portion of the surface of the rail R from the left side (one side surface) And a fixing member 70 for fixing the two soundproofing members 2 and 3. The second soundproofing member 3 is attached from the front side

The respective soundproofing members 2 and 3 are the same as those in the above-described embodiment, and are denoted by the same reference numerals as those in the above embodiment, and the description thereof is omitted.

11, the fixture 70 includes a horizontal portion 71 which is inserted into the lower side of the rail bottom portion Rb and a lower portion 71 which is connected to the left end portion of the horizontal portion 71, A first rising section 72 which is connected to the right end of the horizontal section 71 and is connected to the vertical section of the sound insulating cover 16 of the second soundproofing member 3, And a second rising section 73 assigned to the second rising section 16b.

The horizontal portion 71 is provided on both sides of the horizontal portion 13c of the sound insulating cover 13 of the first soundproofing member 2 and the horizontal portion 16c of the sound insulating cover 16 of the second soundproofing member 3 .

The upper end position of the first rising portion 72 is substantially identical to the upper end position of the abdomen sound absorbing mat 11a of the first soundproofing member 2, (Rb). 10, since the upper end position of the second rising section 73 is equal to or smaller than the height of the rail bottom Rb, the rail R is moved to the right (depth side) ), And the installation work can be easily performed.

The horizontal portion 71 is formed with a cushion portion 74 made of rubber that contacts the horizontal portions 13c and 16c of the sound insulation covers 13 and 16 of the two soundproofing members 2 and 3, The rising portion 72 is formed with a cushion portion 75 made of rubber that contacts the upper portion of the slant portion 13a of the sound insulating cover 13 of the first soundproofing member 2.

According to the soundproofing apparatus 10 of the rail in this reference example, although the two fixing members 5, 6, 8, and 9 are required in the first and second embodiments, the fixing members 70 are used as one, It is possible to fix the soundproofing members 2, At this time, a tool for fixing the bolt and fixing the screw is not required, and thus the labor and labor of the construction can be improved. Further, since it is not a structure that is fixed by bolts on the side of the lower surface of the rail bottom, the portion protruding from the rail R is very small and does not interfere with the track maintenance.

According to the soundproofing apparatus of the rail of the present invention, noise generated in the rail is reduced, and furthermore, the time and complexity of the construction can be improved, thereby contributing to noise reduction of the railway.

1: Sound insulation of rail
2: first soundproof member
3: second soundproof member
4: Fixture
5: first fixing member
6: second fixing member
7: Fixture
8: first fixing member
9: second fixing member
11, 14: Sound absorbing mat
13, 16: Sound insulation cover
13a, 16a:
13b, 16b:
13c and 16c:
21:
22:
23:
24: convex portion (first convex portion)
25: guide portion
31:
32:
34: Through hole (first concave portion)
41:
42:
44: convex portion (second convex portion)
45: convex portion (first convex portion)
51:
52:
53:
54: Through hole (second concave portion)
55: through hole (first concave portion)
61, 62, 63:

Claims (11)

A first soundproofing member having a sound absorbing mat and a sound insulating cover, a first soundproofing member attached to a required portion of the rail surface from one side surface thereof, a sound absorbing mat and a sound insulating cover, A soundproofing device for a rail, comprising a two-soundproofing member and a fixture for fixing the two soundproofing members,
The fixing member is composed of a first fixing member and a second fixing member. The first fixing member has a horizontal portion inserted into the bottom surface of the rail bottom portion and a horizontal portion connected to the end portion of the horizontal portion and allocated to the sound- And the second fixing member has a horizontal portion inserted below the horizontal portion of the first fixing member and a rising portion formed continuously to the end portion of the horizontal portion and assigned to the soundproof cover of the other soundproofing member, At least one convex portion is formed on one of the first and second fixing members and the other fixing member is provided with a concave portion fitted to the convex portion, The horizontal portions are overlapped and detachably fitted,
Wherein at least one of the first and second fixing members is provided with a bent portion which is formed at an end portion of the semi-rising portion side of the horizontal portion and restricts the movement of the fixing member toward the rising portion side. delete The soundproofing device for a rail according to claim 1, wherein the bent portion is formed on the second fixing member and is in contact with the rising portion of the first fixing member from the outside. The connector according to claim 3, wherein a first convex portion of the at least one convex portion is formed on an outer surface of the rising portion of the first fixing member, and a first concave portion fitted to the first convex portion in the bent portion of the second fixing member Wherein the sound insulation member is formed in a shape of a curved surface. 5. The apparatus according to claim 4, wherein the second convex portion of the at least one convex portion is formed so as to protrude in a horizontal direction from an end of the half portion of the horizontal portion of the first fixing member, and a second concave portion Is formed at the lower end portion of the rising portion of the second fixing member. The apparatus according to claim 1, wherein a first convex portion of the at least one convex portion is formed in a horizontal portion of either one of the first and second fixing members, and the first convex portion is formed in a horizontal portion of the other fixing member, Wherein the first concave portion is fitted to the first concave portion. 7. The apparatus according to claim 6, wherein the horizontal portion of either one of the first and second fixing members guides the other horizontal portion when the other horizontal portion is overlapped with the other horizontal portion, Wherein a guide portion for restricting movement of the rail is formed. The soundproofing device of a rail according to any one of claims 1 and 3 to 7, wherein the sound insulating cover is formed in a flat plate shape placed on a side surface upper end portion of the rail bend portion and a top surface top portion of the rail bottom portion. The sound insulating cover according to any one of claims 1 and 3 to 7, further comprising: an inclined portion extending from the rail top portion to the top end of the rail bottom portion; a vertical portion along the rail bottom portion side from the bottom end of the inclined portion; And a horizontal portion extending from the lower end of the vertical portion along the lower surface of the rail bottom portion, wherein the sound-absorbing mat is formed on both the inclined portion and the horizontal portion. The soundproofing device for a rail according to claim 9, wherein a convex portion for preventing deviation of each fixing member in a rail direction is formed in a vertical portion of the sound insulating cover. A method for attaching a soundproofing apparatus for a rail according to claim 5 to a rail, comprising the steps of: inserting a horizontal portion of a first fixing member from below one side of a rail to a lower side of a rail bottom portion to form a first fixing member; The horizontal part is inserted from the other side of the rail to the lower side of the horizontal part of the first fixing member and the second concave part of the second fixing member is fitted to the second convex part of the first fixing member, There is no gap between the end portion of the rising section side and the rising section side end of the second fixing member and the gap between the end portion on the rising section side of the horizontal section of the first fixing member and the end section on the bent section side of the horizontal section of the second fixing member A step of setting a fixed member and a step of setting a first end side of the tool as a point and a second end side of the tool as a point of weakening by using a rod- The step of bringing the edge of the horizontal portion into contact with the edge of the bent portion from the lower side and applying a force to the inverted point upwardly to eliminate the gap between the edge of the rising portion of the horizontal portion of the first fixing member and the edge of the bent portion of the second fixing member Wherein the sound insulation device is mounted on the rail.
KR1020147013173A 2011-10-17 2012-09-28 Noise insulation device for rail KR101922754B1 (en)

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KR20140093683A (en) 2014-07-28
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EP2770107A1 (en) 2014-08-27
EP2770107B1 (en) 2017-11-08
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CN103998686B (en) 2016-06-29
JP5982390B2 (en) 2016-08-31

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