JP6154230B2 - Soundproof panel scattering prevention device - Google Patents

Description

  The present invention relates to a scattering prevention tool for a soundproof panel that prevents the soundproof panel of a soundproof wall provided along a road from scattering.

Noise barriers are provided on the side edges of highways, motorway roads, bypass roads and the like as noise countermeasures for the surroundings.
This soundproof wall is generally composed of a foundation wall provided along the end of the traveling path of the vehicle and a soundproof panel provided on the upper edge of the foundation wall.
For this soundproof panel, a translucent panel such as a glass panel or a resin panel is often used.

Such a soundproof panel may be broken due to an impact such as vehicle contact or collision, and may be scattered and dropped (hereinafter simply referred to as scattering).
If the installation location of the soundproof panel is on an overpass or on a three-dimensional crossing road, the scattering of fragments can cause an accident in the surrounding or lower traveling vehicle, damage the vehicle, and injure passers-by. There is sex.
For this reason, it is necessary for the soundproof panel to take some means for preventing scattering in preparation for scattering at the time of breakage.

For example, Japanese Unexamined Patent Application Publication No. 2013-23912 discloses the use of a multi-layer panel in which a plurality of panels are bonded with an intermediate film interposed therebetween.
In this prior art, broken panel fragments are held by the intermediate film, so the panel fragments do not scatter.

  However, in order to prevent scattering using such a multi-layered soundproof panel, a large-scale construction is required in which a special multi-layered soundproof panel is manufactured and all soundproof panels are replaced with the multi-layered soundproof panel. There is a problem that it is necessary, very expensive, and takes time.

Further, as a measure using the existing soundproof panel, there is a method of sticking a scattering prevention film on the surface of the soundproof panel.
The application of the anti-scattering film does not require the production of a special soundproof panel at high cost, but its construction is not easy.

  Specifically, for example, a fine and skilled technique is required for a flexible film sticking operation, and further, a large-scale lighting device is essential for work in a dim or night time. There was a problem that the construction costed a lot, such as large-scale lane restrictions and the arrangement of skilled workers for many people.

  Furthermore, resin sheets are generally used for the intermediate film and the anti-scattering film used in the above-described conventional technology. However, such resin sheets are greatly deteriorated in weather resistance depending on the use environment. Depending on the situation, degradation may occur unexpectedly, and the maintenance management becomes very complicated.

JP2013-23912

  The present invention has been made to solve the above-described problem, and an object thereof is to reliably prevent scattering due to breakage of a soundproof panel at a low cost with a simple operation.

In order to achieve the above object, a soundproofing panel anti-scattering device according to the first invention of the present invention is:
A soundproofing device for a soundproofing panel having a foundation wall provided along a traveling path of the vehicle and a soundproofing panel provided on an upper edge of the foundation wall,
A mesh sheet having flexibility arranged along the plane of the soundproof panel;
A holder that is attached to the upper edge side of the soundproof panel and holds the vicinity of the upper edge of the mesh sheet disposed along the plane of the soundproof panel;
And fixing means for fixing the lower edge of the mesh sheet to the foundation wall.

Moreover, the anti-scattering device for a soundproof panel according to the second aspect of the present invention is the first aspect of the invention,
Projecting above the foundation wall, a plurality of struts are provided at the required intervals,
The strut is
A web portion arranged in a direction across the upper surface of the foundation wall;
Of the side edges of the web part, on the side edge facing the traveling path of the vehicle, a first flange part having a construction surface along the extending direction of the foundation wall;
Of the side edges of the web part, on the side edge opposite to the first flange part, a second flange part having a construction surface along the extending direction of the foundation wall;
Comprising
Soundproof panel
The first flange portion is attached to the surface facing the second flange portion with a gap between the second flange portion,
The holding tool
A top surface placed on top of the column;
It is provided at the position of the top surface part placed on the upper part of the column at a position where it is inserted into the gap between the second flange part of the column and the soundproofing panel, and has both sides projecting outward from the second flange part. And an insertion part having a slit through the web part of the support in the center,
A retaining means provided in the insertion portion and acting in a direction to widen a gap between the second flange portion of the support column and the soundproof panel,
A mesh sheet locking means provided at a position of the insertion portion projecting outward from the second flange portion;
The upper edge vicinity of a mesh sheet | seat is latched by the latching means of a holder.

In addition, in the second invention, the anti-scattering device for a soundproof panel according to the third invention is as follows:
The retaining means of the retainer
It is an elastic body which acts in the direction which presses an insertion part against the 1st flange part of a support | pillar, It is characterized by the above-mentioned.

Moreover, the anti-scattering device for a soundproof panel according to the fourth invention is any one of the first to third inventions,
Among the edges of the mesh sheet, a reinforcing band is provided at least along the edge on the upper edge side.

In addition, in the fourth invention, the anti-scattering device for a soundproof panel according to the fifth invention is as follows:
The reinforcing band is composed of a mesh structure, and the mesh density of the mesh structure of the reinforcing band is a reinforcing mesh band higher than the mesh density of the mesh structure other than the reinforcing band.

In the first invention, since the mesh sheet can be provided along the plane of the existing soundproof panel via the holder and the fixing means, it is extremely simple and low-cost, and the scattering of the fragments due to the breakage of the soundproof panel. Can be effectively prevented.
Moreover, in the 1st invention, since the mesh sheet which has a softness | flexibility is used, it is hard to generate | occur | produce concentration of stress with respect to a holder in the holding state of a mesh sheet, and an excessive force does not act. For this reason, it is not necessary to further increase the rigidity of the holder, and the mesh sheet can be easily and reliably held by a protruding bolt with a simple structure such as a nut.

  In the second invention, in addition to the effects of the first invention, the holder can be easily and reliably attached to the soundproof wall.

  In the third invention, in addition to the effects of the first or second invention, the holder can be easily attached to the soundproof wall, and the soundproof wall is not easily dropped without complicated construction. On the other hand, the holder can be securely attached.

Further, in the fourth invention, in addition to the effects of the first to third inventions described above, the reinforcing band provided along the upper edge of the mesh sheet increases the strength of the mesh sheet and is suspended from the holder. Since the mesh sheet is prevented from being loosened or deformed when held, the interval between the holders can be widened, and there is no need to pull the mesh sheet in combination with a reinforcing member such as a wire rope.
In addition, in the fourth invention, the edge of the mesh sheet is reinforced, making it difficult for the mesh sheet to be pulled, and reducing the durability after construction and the risk of breakage due to impacts such as accidents and scattered fragments. Can do.

  In the fifth aspect of the invention, in addition to the effects of the fourth aspect of the invention, the reinforcing band is a member common to the material of the mesh sheet. When the mesh sheet is manufactured, the reinforcing mesh band is the same or in a series of steps. Therefore, manufacturing and management costs can be suppressed.

FIG. 1 is an explanatory side view showing the configuration of the holder of the anti-scattering tool according to the present invention. FIG. 2 is a partial front view seen from the AA direction shown in FIG. FIG. 3 is a partial front view as seen from the BB direction shown in FIG. FIG. 4 is a rear view seen from the CC direction shown in FIG. FIG. 5 is a conceptual plan view of a mesh sheet attached to the holder shown in FIG. FIG. 6 is an explanatory side view showing a configuration in the vicinity of the attachment site of the soundproof wall to which the holder shown in FIG. 1 is attached. FIG. 7 is a top view from the DD direction shown in FIG. FIG. 8 is an explanatory side view showing a state in which the holder shown in FIG. 1 is attached to the soundproof wall shown in FIG. FIG. 9 is a front view seen from the EE direction shown in FIG. FIG. 10 is a top view seen from the FF direction shown in FIG. 11 is a front view showing a state in which the mesh sheet shown in FIG. 5 is attached to the holder shown in FIG. 12 is a front view showing a state of being locked to the holding tool shown in FIG. FIG. 13 is a front view showing a locked state of the lower edge side of the mesh sheet locked by the holding tool.

  The present invention is a scattering prevention tool for preventing debris from scattering when a soundproof wall provided along a side edge of a roadway is damaged, and the target soundproof wall extends along an end of a traveling path of a vehicle. And a soundproof panel provided on the upper edge of the foundation wall.

In the present invention, the soundproof panel is prevented from being scattered by arranging a mesh sheet along the soundproof panel.
Hereinafter, based on an Example, this invention is demonstrated in detail.

  FIG. 1 is an explanatory side view showing the structure of the holder of the anti-scattering device according to the present invention, FIG. 2 is a partial front view as seen from the AA direction shown in FIG. 1, and FIG. 3 is a BB shown in FIG. 4 is a partial front view seen from the direction, FIG. 4 is a rear view seen from the CC direction shown in FIG. 1, FIG. 5 is a conceptual plan view of the mesh sheet attached to the holder shown in FIG. 1, and FIG. Side surface explanatory drawing which shows the structure of the attachment site | part vicinity of the sound-proof wall to which the holder shown in 1 is attached, FIG. 7 is the upper end view seen from the DD direction shown in FIG. 6, FIG. 8 shows in FIG. FIG. 9 is a front view showing the state in which the holder is attached to the soundproof wall shown in FIG. 6, FIG. 9 is a front view seen from the EE direction shown in FIG. 8, and FIG. 10 is the FF direction shown in FIG. FIG. 11 is a front view showing a state in which the mesh sheet shown in FIG. 5 is attached to the holder shown in FIG. Front view illustrating a locked state in the indicated holder, FIG. 13 is a front view showing a locked state of the lower edge of the mesh sheet, which is engaged in the holder.

First, based on FIG.6 and FIG.7, the soundproof wall to which the scattering prevention tool which concerns on this invention is attached is demonstrated.
In the figure, 2 is a soundproof wall, 20 is a pillar provided substantially vertically at an upper edge of a foundation wall (not shown), 200 is a web part of the pillar 20, 201 is a first flange part of the pillar 20, 202 is The second flange portion 21 of the support column 20 is a soundproof panel that is arranged along the upper edge of the foundation wall (not shown) and is locked to the support column 20 via locking means (not shown).

This soundproof wall 2 is a kind of well-known soundproof wall already provided along the side of an elevated highway or the like.
The support columns 20 are provided so as to vertically protrude from the upper edge of a concrete base wall (not shown), for example, and a plurality of support columns 20 are provided at predetermined intervals.

This support column 20 has a web portion 200 arranged in a direction crossing the upper surface of the foundation wall along the width direction thereof, and a side edge of the web portion 200 on the side facing the traveling road of the vehicle. Of the side edges along the vertical direction of the web part 200, the first flange part 201 having the construction surface along the extending direction of the foundation wall, that is, the length direction of the foundation wall, is opposite to the first flange part 201. A second flange portion 202 having a construction surface along the extending direction of the foundation wall, that is, the length direction of the foundation knitting machine is provided on the side edge of the side.
Therefore, the end face of the support column 20 as viewed from above is substantially H-shaped, and so-called H-shaped steel is usually used for the support column 20.

The soundproof panel 21 is a soundproof panel that is already widely used. For example, the soundproof panel 21 is a panel made of resin or tempered glass having translucency.
The soundproof panel 21 is attached between two support columns in a state where both sides are locked.
At this time, the soundproof panel 21 is provided with two pieces of the first flange portion on the surface facing the second flange with a gap between the second flange portion and the second flange portion via a locking means (not shown). Locked between the columns 20.

Next, FIGS. 1 to 5 will be described.
In the figure, 1 is a holder for a scattering prevention device according to the present invention, 10 is a main body of the holder 1, 100 is a top surface portion of the main body 10, 101 is an insertion portion of the main body 10, and 101a is provided in the middle of the insertion portion 101. Slits 1010 to 1013 are bolts provided at the insertion portion 101, 1020 are retaining means provided at the distal end of the insertion portion 100, 1021 are retaining means provided at the distal end of the insertion portion 100, and 11 is a retaining means 1. Locking plates 110 to 113 are through holes provided in the locking plate, 12 is a mesh sheet, 120 is a warp of the mesh sheet 12, 121 is a weft of the mesh sheet, and 122 is a reinforced mesh band.

In FIG. 1, the mesh sheet 12 is omitted for convenience.
For this reason, the holder 1 shown in FIG. 1 includes a mesh sheet (not shown).
The holder 1 mainly includes a main body 10 and a locking plate 11.
The main body 10 includes a rectangular top surface portion 100, an insertion portion 101 that extends perpendicularly from one side of the top surface portion 100 to the top surface portion 100, and a retaining member that extends from the distal end edge of the insertion portion 101 in the extending direction of the insertion portion 101. Means 1020 and 1021 are provided.

The width of the insertion portion 101 (the length in the lateral direction in FIG. 2) is wider than the width of the second flange portion, and when the web portion 200 of the support column 20 penetrates the slit 101a described later, FIG. As shown, both sides of the web part 200 project outside.
As shown in FIG. 2, the insertion portion 101 is provided with a slit 101a in the center thereof.
As will be described later, when the holder 1 is attached to the soundproof wall, the slit 101a penetrates the web portion 200 of the support column.

Also, in the region protruding near the side edge of the insertion portion 101 and outside the web portion 200, bolt portions 1010 to 1013 projecting in a direction perpendicular to the surface from the surface with which the web portion 200 abuts. Provided.
In the present embodiment, a total of four bolt portions 1010 to 1013 are provided on each side.

As shown in FIG. 2, a pair of retaining means 1020 and 1021 are provided along the installation direction of the slit 101a with the position of the slit 101 sandwiched from the leading edge of the insertion portion 101 so as not to block the slit 101a. It is done.
Each of the retaining means 1020 and 1021 is obtained by bending a metal plate.

Specifically, the retaining means 1020 and 1021 are each bent at an acute angle in the direction of the top surface portion 100 in the middle of the long metal plate extending from the distal end edge of the insertion portion 101. The folded portion is formed by being bent so as to be further wound inside from the middle.
The retaining means 1020 and 1021 have elasticity that acts in a direction in which the bent portions are expanded when the respective bent portions are crushed.

  The thickness T (the width shown as T in FIG. 1) of the retaining means 1020 and 1021 is narrower than the width of the gap between the soundproof panel 21 and the second flange portion 202 and is crushed. Can be inserted.

  The locking plate 11 is a substantially rectangular plate, and when the locking plate 11 is superimposed on the insertion portion 101, the through holes 110 to 113 are provided at positions where the bolt portions 1010 to 1013 of the insertion portion 101 pass. Have

  The locking plate 11 is held by the main body 10 with the bolt portions 1010 to 1014 of the insertion portion 101 passing through the through holes 110 to 113, and the bolt portions 1010 protruding from the through holes 110 to 113. 1014 to 1014 so as not to fall off the main body 10 by attaching a nut.

  The mesh sheet 12 is a substantially rectangular sheet, in which a reinforcing fiber core is impregnated with a resin, or a composite wire having a core coated with a resin is arranged in a mesh shape and molded integrally.

  The mesh sheet 12 used in this embodiment is a set of two composite wire rods arranged at a narrow interval, which are used as warp yarns 120, and a plurality of warp yarns 120 are arranged at a predetermined mesh interval. The weft yarn 121 is formed by integrally molding two adjacent composite wire rods arranged adjacent to each other, and a plurality of sets of the weft yarns 121 are arranged at predetermined mesh intervals so as to be orthogonal to the warp yarns 120.

A plurality of composite wire rods are arranged at narrow intervals parallel to the weft yarn along both edges of the mesh sheet 12 parallel to the weft yarn 121, and a belt-shaped reinforcing mesh belt 122 is provided along the edge.
In order to further increase the strength of the reinforcing mesh band 122, the auxiliary yarn obtained by impregnating the fine reinforcing fibers with the resin crosses the plurality of composite wires constituting the reinforcing mesh band 122, that is, the direction substantially parallel to the warp yarn. For example, it arrange | positions with the space | interval substantially the same as the diameter of a composite wire.

  As described above, the mesh density of the reinforced mesh band 122 is higher than the density of the mesh in the main area of the mesh sheet 12, specifically, the area other than the reinforced mesh band 122, whereby the mesh sheet 12 is suspended. It can prevent breakage and large slack when lowered.

The mesh sheet 12 is integrally formed into a sheet shape by thermal welding or thermal bonding of the above structure.
In addition, this mesh sheet 12 is equivalent to what is already marketed, for example as a mesh sheet | seat used for the concrete construction fall prevention which is maintenance work of an elevated road.

Next, based on FIG. 8 to FIG. 13, a method of using the above embodiment will be specifically described.
When attaching the holder 1 to the soundproof wall 2, first, as shown in FIG. 8, the top 10 of the main body 10 of the holder 1 is prevented from coming off so as to cover the upper edge of the support column 20. The means 1020 and 1021 are inserted into the gap between the soundproof panel 21 and the second flange portion 202 and pushed until the top surface portion 100 of the main body 10 hits the upper edge of the column 20.

At this time, the retaining means 1020 and 1021 are crushed in the gap between the soundproof panel 21 and the second flange portion 202.
Due to the elasticity of the retaining means 1020 and 1021, the main body 10 is tightly attached to the soundproof wall 2 without requiring a physical fixing means such as a screw.
At this time, the bolt portions 1010 to 1013 of the main body 10 extend from both sides of the second flange portion 202 of the support column 20 in a direction protruding from the soundproof wall 20 as shown in FIGS. 9 and 10.

The main body 10 is provided at the upper end of the support column 20 at a predetermined interval, specifically, at an interval shorter than the length of the mesh sheet 12.
In addition, it is recommended to provide the main body 10 at the upper end of all the support | pillars 20 over the whole construction area | region.

For example, as shown in FIG. 11, the mesh sheet 12 is hooked on the main body 10 so that the bolt portions 1010 to 1013 penetrate through the gaps in the mesh portion.
With respect to the main body 10 on which the mesh sheet 12 is hooked, the locking plate 11 is disposed so as to sandwich the second flange portion 202 and the mesh sheet 12 between the main body 10 and the through holes 110 to 113 of the locking plate 11. A nut is attached and tightened to the bolt portions 1010 to 1013 of the main body 10 penetrating through.
Thereby, the mesh sheet 12 is locked to the holder 1.

Further, the upper edge of the mesh sheet 12 is similarly locked at the installation position of the main body 10 of the holder 1, and when the mesh sheet 12 is interrupted in the middle of the construction area, another mesh (not shown) is used. The sheet 12 is similarly locked.
On the other hand, although it is the lower edge side of the mesh sheet 12, this region hangs down to cover the vicinity of the upper edge of the foundation wall 22 of the soundproof wall 2 as shown in FIG. .

The mesh sheet 12 in the region covering the foundation wall 22 is fixed to the foundation wall 22 through, for example, post-installed anchor bolts.
For this fixing, for example, a method similar to the method of fixing the mesh sheet to the concrete surface is recommended to prevent the concrete from peeling off.
In this case, it is recommended that a washer be sandwiched between the mesh sheet 12 and the bolt to prevent the mesh sheet 12 from being damaged.

  In the above embodiment, the holder for the soundproof wall can be attached to a required position by positioning and pushing in very easily without using a tool, and the mesh sheet can be attached to the holder. It is only necessary to pass the protruding bolts through the mesh sheet mesh, and tighten the nut with the mesh sheet sandwiched between the locking plates. Can be fixed with construction anchor bolts.

For this reason, in the above embodiment, there is very little room for the worker's skill level to affect the construction result, and anyone who is engaged in road maintenance work can obtain a stable construction result, The work content itself is a combination of extremely basic work, and no special tools or complicated work is required. For example, even in the case of construction at night, construction work can be performed reliably without a strong lighting facility.
Also, the mesh sheet used can be diverted to prevent the concrete from being peeled off, which is already used for the maintenance of elevated roads, so the introduction cost of materials can be reduced, and the storage and management costs of materials can also be reduced. .

In addition, in the said Example, the structure of a mesh sheet | seat has the intensity | strength which is not damaged with a soundproof panel with the damage of a soundproof panel, and the grade which most of the fragments normally assumed by damage do not pass As long as the mesh is rough, the present invention is not limited to the above embodiment.
In addition, if the shape of the holder can be fixed near the upper edge of the soundproof wall by inserting it between the support of the soundproof wall and the soundproof panel, and it can hold the bolt protruding from the soundproof wall, It is not limited to examples.

  In particular, the shape and configuration of the retaining means are tightly fitted in the clearance between the soundproof walls, and the elastic force of the retaining means and the frictional force between the retaining means and the soundproof wall are not accidentally dropped. Any thing is acceptable.

In addition, the fixing of the lower edge side of the mesh sheet may be any method as long as the mesh sheet can be fixed to the surface of the concrete to prevent the concrete from peeling off. However, the present invention is not limited to the above-described embodiment as long as the broken pieces assumed from the characteristics of the soundproof panel can be held in the mesh sheet.
Moreover, the reinforcement | strengthening mesh belt | band | zone of a mesh sheet may be provided only in the edge used as the upper edge at the time of construction, and may be provided in a side edge in addition to an upper edge.

  The main purpose of the reinforced mesh band with increased mesh density is to break the mesh sheet by its own weight when the mesh sheet is lowered along the soundproof panel through the retainer. Therefore, instead of the reinforced mesh band, a band-like or string-like member having excellent tensile strength may be integrated into the mesh sheet as a reinforced band.

In the above embodiment, the mesh sheet is configured to be provided along the surface of the soundproof panel opposite to the roadway. However, the mesh sheet may be provided on the surface of the roadway side, and further along both surfaces of the soundproof panel. The area covered by the mesh sheet may be a wide area from the soundproof panel through the concrete of the foundation wall to the elevated road surface, in addition to preventing the soundproof panel from scattering and preventing the concrete from peeling off. You may make it have.
Furthermore, the present invention can be freely modified within the scope of the present invention, and is not limited to the above embodiments.

  In the present invention, the mesh sheet can be attached along the soundproof panel of the soundproof wall attached to the road structure easily and reliably with stable quality regardless of the skill level of the worker. Costs can be reduced by diverting mesh sheets, which are commonly used for road structure maintenance, to the sheet, and it is extremely effective to prevent scattering of debris when the soundproof panel is damaged. It is highly available in terms of what it can do.

DESCRIPTION OF SYMBOLS 1 Scatter prevention tool holder 10 Main body 100 Top surface part 101 Insertion part 101a Slit 1010 Bolt part 1011 Bolt part 1012 Bolt part 1013 Bolt part 1020 Retaining means 1021 Retaining means 11 Locking plate 110 Through-hole 111 Through Hole 112 Through-hole 113 Through-hole 12 Mesh sheet 120 Warp yarn 121 Weft yarn 122 Reinforced mesh band 2 Soundproof wall 20 Strut 200 Web portion 201 First flange portion 202 Second flange portion 21 Soundproof panel 22 Base wall T Thickness

Claims (4)

A soundproofing device for a soundproofing panel having a foundation wall provided along a traveling path of the vehicle and a soundproofing panel provided on an upper edge of the foundation wall,
A mesh sheet having flexibility arranged along the plane of the soundproof panel;
A holder that is attached to the upper edge side of the soundproof panel and holds the vicinity of the upper edge of the mesh sheet disposed along the plane of the soundproof panel;
A fixing means for fixing the lower edge of the mesh sheet to the foundation wall ,
Projecting above the foundation wall, a plurality of struts are provided at the required intervals,
The strut is
A web portion arranged in a direction across the upper surface of the foundation wall;
Of the side edges of the web part, on the side edge facing the traveling path of the vehicle, a first flange part having a construction surface along the extending direction of the foundation wall;
Of the side edges of the web part, on the side edge opposite to the first flange part, a second flange part having a construction surface along the extending direction of the foundation wall;
Comprising
Soundproof panel
The first flange portion is attached to the surface facing the second flange portion with a gap between the second flange portion,
The holding tool
A top surface placed on top of the column;
It is provided at the position of the top surface part placed on the upper part of the column at a position where it is inserted into the gap between the second flange part of the column and the soundproofing panel, and has both sides projecting outward from the second flange part. And an insertion part having a slit through the web part of the support in the center,
A retaining means provided in the insertion portion and acting in a direction to widen a gap between the second flange portion of the support column and the soundproof panel,
A mesh sheet locking means provided at a position of the insertion portion projecting outward from the second flange portion;
Comprising
An anti-scattering device for a soundproof panel in which the vicinity of the upper edge of the mesh sheet is locked by the locking means of the holder . The retaining means of the retainer
The scattering prevention tool for a soundproof panel according to claim 1 , wherein the soundproof panel is an elastic body that acts in a direction in which the insertion portion is pressed against the first flange portion of the support column. The scattering prevention tool for a soundproof panel according to claim 1 or 2 , wherein a reinforcing band is provided along at least the upper edge side of the edges of the mesh sheet. The soundproof panel scattering prevention device according to claim 3 , wherein the reinforcing band is formed of a mesh structure, and the mesh density of the mesh structure of the reinforcing band is higher than that of the mesh structure other than the reinforcing band.

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