JP4914325B2 - Fall prevention metal fittings and sound insulation wall for wire rope for fall prevention of sound insulation wall panel - Google Patents

Description

  This invention is installed along a side of a highway, a general road, a railroad, etc., and is used to construct a sound insulation wall for sound insulation so as not to scatter noise associated with the traveling of a vehicle or the like to the surrounding area to protect the environment. It belongs to the technical field of sound insulation wall that supports the fall prevention metal rope supported by the fall prevention wire rope of the sound insulation wall panel and the fall prevention wire rope using the fall prevention metal fitting to prevent the fall of each sound insulation wall panel. .

Conventionally, a soundproof wall panel is attached to each sound insulation wall panel, and even if a vehicle collides and the sound insulation wall panel comes off the column, the sound insulation wall panel falls and scatters to the surrounding area. Fall prevention measures are generally implemented to avoid the occurrence of secondary disasters.
For example, Patent Document 1 below discloses a configuration in which a so-called eyebolt provided with a ring is attached to a column and a sound insulation panel, and a drop prevention wire rope is sequentially passed through the ring portion of each eyebolt. . However, when the eyebolts are used, if any one of the sound insulation panels needs to be replaced, the wire rope for fall prevention will move upward and downward until it is completely removed from the eyebolts of the corresponding sound insulation wall panels. It must be moved to pull out. Therefore, it will be completely removed from the neighboring sound insulation wall panels and the column eyebolts that are built in series to form the sound insulation wall, and the replacement work of the sound insulation wall panel becomes a large-scale work, which takes time and effort. It takes. Of course, even at the beginning of installing the sound insulation wall, it is necessary to pass the drop-prevention wire rope through the ring portions of each eyebolt in order, requiring careful work and time and labor.

In that regard, the exterior plate fall prevention device disclosed in Patent Document 2 is provided with a fastening ring part in which the wire rod attached to the exterior plate or the support column is bent at an angle that extends the wire material about one round at the tip. The fall-preventing wire rope can be twisted into the fastening ring portion from the lateral direction and passed through the ring portion. Accordingly, the fall prevention wire rope can be removed from the ring portion by twisting as necessary, and there is no problem seen in the eyebolt of Patent Document 1.
However, the fastening ring part which is not a configuration in which the wire is curved is inferior in strength and rigidity, and there is a suspicion that the use and function of the fall prevention wire rope can be completely satisfied. Moreover, this exterior plate fall prevention device (fastening ring part) is attached and used so as to protrude to the back side of the exterior plate (so-called back side sound insulation panel), and the fall prevention wire rope passed through this In addition to the presence of, the back side of the sound insulation panel presents a cluttered and unsightly landscape and design. Furthermore, this exterior plate fall prevention device is based on the bolts attached to the exterior plates and columns, and is attached to the outer end of the bolt, and the fall rope wire is passed through the fastening ring. Since there are many so-called components and the structure is complicated, it is time-consuming to manufacture and use and is expensive.

  In addition, Patent Document 3 discloses a fall prevention wire rope threading tool configured to be able to open and close an annular portion through which a fall prevention wire rope is passed with a shape and configuration similar to a so-called handcuff. However, this threading tool is difficult to attach to the sound absorbing panel and the sound insulating panel when used in a narrow space with a sound insulating wall composed of the front sound absorbing panel and the rear sound insulating panel attached between the columns. Unfortunately, it has been pointed out that it takes time and effort.

JP 2002-371523 A JP-A-10-195828 JP 2007-126931 A

  An object of the present invention is to provide a drop-preventing metal fitting that is simple in structure and can be manufactured at low cost, is easy to use, has an excellent function of supporting a drop-preventing wire rope, and has a structure for fully exhibiting its application and functions for preventing the fall. It is to provide a sound insulation wall that supports the fall prevention wire rope using the fall prevention fitting.

As means for solving the above-described problems of the prior art, the fall prevention metal fitting for the wire rope for preventing the sound insulation wall panel according to the invention described in claim 1
A fall-preventing bracket that is supported through the fall-prevention wire rope 2 of the sound insulation wall panel 21 or 22 that is installed between the columns 20 and 20 that are built at a certain interval,
The fall prevention metal fitting 1 is formed by a plurality of support walls 11 and 12 arranged side by side, and a seating wall 13 that connects the support walls 11 and 12.
Each of the plurality of support walls 11 and 12 is formed with a wire rope passage groove 16 from the wire rope passage hole 15 toward the seating wall 13, and the wire rope passage groove 16 is opened toward the seating wall side. In addition, the wire rope passage grooves 16 of the plurality of support walls 11 and 12 are alternately formed in opposite directions.
The seating wall 13 is configured to be attached to the sound insulation wall panel 21 or 22 with a bolt 3.

The invention described in claim 2 is the fall prevention metal fitting 1 of the wire rope for preventing the fall of the sound insulation wall panel formed in claim 1,
In the wire rope through groove 16 that opens the wire rope through holes 15 of the support walls 11 and 12 arranged side by side toward the seating wall 13, the groove side 16 a on one side is formed to the seat wall 13 in the tangential direction of the wire rope through holes 15. The groove side 16b on the other side is cut out so as to form an entrance / exit 16c having a width slightly larger than the outer diameter of the drop-preventing wire rope 2 between the groove side 16b and the seating wall 13.
The invention described in claim 3 is characterized in that the fall prevention metal fitting 1 through which the wire rope for fall prevention of the sound insulation wall panel described in claim 1 or 2 is passed is a pressed product of a steel plate.

The sound insulation wall according to the invention described in claim 4 is:
The soundproof wall 1 or 22 is installed between the support columns 20 and 20 installed at a certain interval, and the fall prevention metal fitting 1 having the structure described in claims 1 to 3 is provided as one soundproof wall panel 21. Alternatively, at least one bolt 22 is attached to each wire 22 with bolts 3 and dropped to each wire rope through-hole 15 so as to sew each of the fall-preventing metal fittings 1 and 1 arranged in contact with each other in the vertical and horizontal directions. A prevention wire rope 2 is passed therethrough.

The fall prevention metal fitting 1 which concerns on the invention described in Claims 1-3 is a structure suitable for mass-producing cheaply by the press work method of a steel plate.
The fall prevention metal fitting 1 can be easily attached to the required position of the sound insulation wall panel 21 or 22 by fixing the seating wall 13 with bolts 3. The fall prevention wire rope 2 can be slid into the wire rope passage hole 15 by using the wire rope passage grooves 16 of the support walls 11 and 12 arranged side by side. Is also possible. Therefore, in addition to being easy to use at the sound insulation wall construction site, if one of the plurality of sound insulation wall panels that construct the sound insulation wall needs to be replaced, it is passed through the fall prevention metal fitting 1 of the sound insulation wall panel. The fall-preventing wire rope 2 supported can be removed from the wire rope through hole 15 of the fall-preventing metal fitting 1 and the replacement work can proceed. After the replacement work is completed, the sound insulation panel can be easily re-passed through the wire rope through hole 16 of the fall-prevention metal fitting 1, so that the work for replacing the sound insulation wall panel is extremely small. That's it. That is, it is possible to easily replace only the sound insulation wall panel having a failure, and the workability is extremely excellent.
Of course, even if a situation occurs in which the sound insulation wall panel 21 or 22 constituting the sound insulation wall is pushed away from the support column 20 due to a vehicle collision accident or the like, the fall prevention metal fitting 1 is a wire rope of a plurality of support walls 11 and 12 arranged side by side. Since the through-holes 15 are jointly formed, that is, the respective wire rope through-grooves 16 are alternately formed in opposite directions, the function, strength, and effect of tightly constraining the fall-preventing wire rope 2 are achieved. Since it works reliably, the function and purpose of preventing the sound insulation wall panel 21 or 22 from falling can be achieved sufficiently.

  Therefore, the sound insulation wall according to the invention of claim 4 constructed by using the above-described fall prevention metal fitting 1 is excellent in workability for installing the sound insulation wall panel and passing the fall prevention wire rope 2 and shortening the construction period. In addition, it has an excellent function to prevent the sound insulation wall panel from falling in the event of a vehicle crash after the dredging, and is highly effective in preventing secondary disasters. When the sound insulation wall panel needs to be replaced due to breakage or the like, it is easy to replace, maintain, and manage regardless of its position, and is excellent in convenience.

A fall-preventing bracket that is supported through the fall-prevention wire rope 2 of the sound insulation wall panel 21 or 22 that is installed between the columns 20 and 20 that are built at a certain interval,
The fall prevention metal fitting 1 is formed by a plurality of support walls 11 and 12 arranged side by side, and a seating wall 13 that connects the support walls 11 and 12.
Each of the plurality of support walls 11 and 12 is formed with a wire rope passage groove 16 from the wire rope passage hole 15 toward the seating wall 13, and the wire rope passage groove 16 is opened toward the seating wall side. In addition, the wire rope passage grooves 16 of the plurality of support walls 11 and 12 are alternately formed in opposite directions.
The seating wall 13 is attached to the sound insulation wall panel 21 or 22 with a bolt 3.

  When constructing a sound insulation wall using the fall prevention metal fitting 1 having the above-described configuration, the above-mentioned fall prevention metal fitting is attached to the sound insulation wall panel 21 or 22 installed between the columns 20 and 20 installed with a certain interval. 1 is attached to one sound insulation wall panel 21 or 22 with at least one bolt, and each wire is sewed in order to sew the fall-preventing metal fittings 1 and 1 arranged in contact with each other in the vertical and horizontal directions. A configuration is adopted in which the drop prevention wire rope 2 is passed through the rope through hole 15.

Below, the fall prevention metal fitting 1 of the invention described in claims 1 to 3 will be described based on the embodiments shown in FIGS. 1 and 2.
This fall prevention metal fitting 1 is the Example which manufactured the steel plate about 3 mm thick by the press work method, for example. In the case of the present embodiment, the two support walls 11 and 12 arranged side by side are formed in substantially the same shape and the same size, and the whole is formed in a substantially U shape by the seating wall 13 connecting the two support walls 11 and 12. ing. However, the support wall is not limited to two configurations.
Incidentally, the size of the support walls 11 and 12 is about 48 × 50 mm, and the internal spacing between the two support walls 11 and 12 is about 24 mm. Bolts 14 are formed in the seating wall 13 with a hole diameter of about 6 mm.

  A wire rope through-hole 15 through which the drop-preventing wire rope 2 is passed is formed in a size having a hole diameter of about 20 mm at a position that is common at substantially the center of the two support walls 11 and 12 arranged side by side. In one support wall 11, a wire rope passage groove 16 that opens the wire rope passage hole 15 toward the seating wall 13 side is slightly larger than the outer diameter of the fall prevention wire rope 2 ( As an example, it is 9 mm), and is formed in a notch shape in a 45-degree obliquely upward direction in FIG. 2A. The wire rope passage groove 16 has a groove side 16a on one side (back side) linearly formed in a direction tangential to the wire rope passage hole 15 to the seating wall 16 in a direction of about 45 degrees, and the groove side 16b on the other side It is cut short so as to form an entrance / exit 16c having a width (about 9 mm) slightly larger than the outer diameter of the fall prevention wire rope 2 between the inner surface of the wall 13.

In the same manner, the other support wall 12 has a wire rope passage groove 16 that opens the wire rope passage hole 15 toward the seating wall 13 and has a width slightly larger than the outer diameter of the fall prevention wire rope 2. Although formed, this wire rope threading groove 16 is opposite to the wire rope threading groove 16 formed on the one supporting wall 11 in the opposite direction (an angle of 45 degrees obliquely downward in FIG. 2A) which is different by about 90 degrees. Is formed. Also in the case of the wire rope through groove 16, the groove side 16a on one side is formed linearly in the direction tangential to the wire rope through hole 15 to the seating wall 16 in the direction of about 45 degrees, and the groove side 16b on the other side is formed on the seating wall 13. It is cut short so as to form an entrance / exit 16c having a width (about 9 mm) slightly larger than the outer diameter of the fall prevention wire rope 2 between the inner side surface and the inner side surface.
2A is a wire rope guiding portion that facilitates the operation (operation) of inserting the drop-preventing wire rope 2 into the wire rope threading groove 16, as will be described later.

When using the fall prevention metal fitting 1 having the above-described configuration, the seating wall 13 is firmly attached to a desired position of a sound insulation wall panel (sound absorption panel 21 or sound insulation panel 22) to be described later with a bolt 3 passed through the hole 14. Fix it. More specifically, as shown in FIG. 6, the sound absorbing panel 21 is attached to a horizontal cross section on the upper side of the panel, and the sound insulating panel 22 is attached to an intermediate bulge as shown in FIG. Is preferred. After mounting as described above, the fall prevention wire rope 2 is inserted from the entrance / exit 16c of one of the support walls 11 arranged side by side, and the wire rope passage groove 16 is slid into the wire rope passage hole 15. Then, the wire rope through hole 15 of the other support wall 12 is also bent using the U-shaped separating portion, and then the wire rope through groove 16 is slid into the wire rope through hole 15 from the entrance / exit 16c. Put in. In this way, due to the shape effect in which the wire rope passage grooves 16 of the two support walls 11 and 12 are alternately formed in opposite directions, the fall prevention through the two wire rope passage holes 15 and 15 as shown in FIG. The wire rope 2 is in a state of being tightly constrained on almost the entire circumference thereof, and is reliably supported so as not to be pulled out in the lateral direction. That is, the fall-preventing wire rope 2 is passed through the wire rope through holes 15 and 15 of the two support walls 11 and 12 in a penetrating state, or conversely, through the above-described manual operation. 15 and 15 cannot be removed.
Therefore, a vehicle or the like collides with a sound insulation wall, which will be described later, and the sound insulation wall panel is surely prevented by the action of the fall prevention wire rope 2 and the fall prevention metal fitting 1, and the action effect of the fall prevention is sufficient. It is expensive.

Next, based on the embodiment shown in FIGS. 3 to 7, a sound insulation wall according to the invention of claim 4 will be described, which is constructed and installed using the fall prevention metal fitting 1 having the above configuration.
The sound insulation wall shown in the figure is, for example, a sound insulation wall panel between the H steel columns 20 and 20 built at intervals of, for example, about 3 m along a side of an expressway, etc. It is the Example of the structure which attached the panel 21 and attached the sound-insulation panel 22 to the back surface (private side).
The details of the structure and operation for attaching the sound absorbing panel 21 and the sound insulating panel 22 to the H steel column 20 are already well-known and well-known techniques, and will not be described in detail here. For example, a bolt stop 23 as shown in FIG. 4 is generally implemented. The sound-absorbing panel 21 and the sound-insulating panel 22 are attached by sequentially stacking the necessary number in the height direction of the H steel column 20.

When the sound absorbing panel 21 and the sound insulating panel 22 are attached to the H steel column 20 to construct the sound insulating wall, as a parallel operation, the sound insulating wall shown in FIGS. 3 and 4 (the sound absorbing panel 21 is placed on the front surface of the H steel column 20). In the case of the installation and the configuration in which the sound insulation panel 22 is attached to the rear surface), the sound absorption panel 21 and the sound insulation panel 22 are respectively the inner surfaces (surfaces facing the H steel struts 20), and positions substantially common in the vertical direction, More specifically, as shown in FIGS. 3 and 4, the anti-falling metal fitting 1 having the above-described configuration is disposed, for example, in FIGS. It is attached as shown in FIG. That is, the support walls 21 and 22 on which the fall-preventing metal fittings 1 are arranged are horizontally oriented, and at least one each of the sound absorbing panel 21 and the sound insulating panel 22 (however, at both ends of the panel as shown in FIG. 4). When installing, the seating wall 13 is attached and fixed by using bolts 3 and nuts 4 in a staggered arrangement (see FIG. 3) with appropriate intervals in the vertical direction. To do.
Then, the construction of the sound insulation wall is advanced through the fall prevention wire ropes 2 to the respective wire rope through holes 15 so as to sew the fall prevention metal fittings 1 and 1 arranged in the vertical direction in order.

  In the case of the fall-preventing metal fitting 1 of the present invention and the sound insulation wall constructed using the same, the fall-preventing wire rope 2 is appropriately used in the operation of passing the drop-preventing wire rope 2 through the wire rope through hole 15 of the anti-falling metal fitting 1. If the slack is provided (in the usual sound insulation wall, an appropriate slack is provided from the viewpoint of preventing the accidental cutting of the fall prevention wire rope 2), the fall prevention wire can be obtained by utilizing the slack. It is possible to easily pass the rope 2 through the wire rope through hole 15 of the fall-preventing metal fitting 1 or to remove it. Therefore, in the work procedure for constructing the sound insulation wall, a degree of freedom is obtained in the order of the work process of passing the drop prevention wire rope 2 through the wire rope through hole 15 of the fall prevention metal fitting 1, and the workability is excellent. Of course, in the event of maintenance or replacement work such as replacement of any of the sound absorbing panels 21 or the sound insulation panels 22 due to a vehicle collision accident or the like, it will fall from the wire rope through hole 15 of the fall prevention fitting 1 of the panel. By removing the prevention wire rope 2, the replacement work can be performed efficiently and locally locally.

  Although the present invention has been described above based on the illustrated embodiment, it is needless to say that the present invention is not limited to the illustrated embodiment. Various modifications can be implemented without departing from the scope of the present invention, including design changes, etc., made by a person skilled in the art as needed.

It is the perspective view which showed the fall prevention metal fitting which concerns on this invention. A to C are a front view, a plan view, and a right side view of the fall prevention metal fitting. It is a vertical sectional view of a sound insulation wall constructed using the fall prevention metal fitting. It is a horizontal sectional view of the sound insulation wall constructed using the fall prevention metal fitting. It is the perspective view which decomposed | disassembled and showed the element which comprises the said sound insulation wall. It is the perspective view which showed the sound absorption panel and H steel support | pillar which comprise the said sound insulation wall. It is the perspective view which showed the sound insulation panel and H steel support | pillar which comprise the said sound insulation wall.

Explanation of symbols

20 Strut 21 Sound absorption panel 22 Sound insulation panel 2 Fall prevention wire rope 1 Fall prevention metal fittings 11 and 12 Support wall 13 Seating wall 14 Bolt fixing hole 15 Wire rope passage hole 16 Wire rope passage groove 3 Bolt 16c Entrance / exit
16a, 16b Wire rope through groove side

Claims (4)

A fall-preventing bracket that is supported through a fall-prevention wire rope of a sound-insulating wall panel that is installed and installed between struts that are built at regular intervals,
The fall prevention metal fitting is formed by a plurality of side-by-side support walls and a seating wall connecting the support walls,
Each of the plurality of support walls is formed with a wire rope passage groove from the wire rope passage hole toward the seating wall side, and the wire rope passage groove is opened toward the seating wall side. The wire rope through-grooves are alternately formed in opposite directions.
A fall prevention metal fitting for a wire rope for preventing a sound insulation wall panel from falling, wherein the seating wall is attached to the sound insulation wall panel with a bolt.   The wire rope through groove that opens the wire rope through-holes of the side-by-side support walls toward the seating wall side is formed so that the groove side on one side extends to the seating wall in the tangential direction of the wire rope through-hole, and the groove side on the other side is the seating wall The wire rope for preventing fall of the sound insulation wall panel according to claim 1, wherein the wire rope is cut so as to form an entrance / exit having a width slightly larger than the outer diameter of the wire rope for preventing fall. Fall prevention bracket.   The fall prevention metal fitting for a fall prevention wire rope for a sound insulation wall panel according to claim 1 or 2, wherein the fall prevention metal fitting is a pressed product of a steel plate.   The soundproof wall panels installed by being attached between the pillars that are built at a certain interval are provided with the fall prevention metal fittings according to any one of claims 1 to 3 at a rate of at least one for each sound insulation wall panel. A sound-insulating wall, wherein a drop-preventing wire rope is passed through each wire rope through-hole so as to sew each fall-preventing metal fitting that is attached by a stopper and communicates in the vertical and horizontal directions.

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