JP5418949B2 - Mobile soundproofing device - Google Patents

Description

  The present invention insulates the work sound generated when the worker works on the structure using the scaffold so as not to leak outside as much as possible, and the worker can easily install and move to the desired place of the scaffold. It relates to a lightweight mobile soundproofing device.

In surface repair to remove the surface coating and FRP of the structure, the scaffold is assembled outside the structure, and the operator uses a power tool such as a grinder or an air tool with the scaffold to grind the old paint film with a rotating grindstone. Cutting noise, intake noise and crushing noise are generated. In recent years, when the old paint film was peeled off, especially in urban areas with many structures, complaints about noise from local residents were often made, and construction was often suspended or canceled.
In order to prevent the noise generated from the construction site from leaking to the outside, the entire area where construction is performed is surrounded by a panel-like structure to prevent the noise generated by the construction site from leaking outside. Have been proposed (see, for example, Patent Documents 1, 2, 3 and 4).
The invention disclosed in any one of Patent Documents 1, 2, 3, or 4 is a civil engineering work that is carried out while an operator stands on the ground or floor because it is installed on the ground or floor and surrounds the entire construction area in a bowl shape. Although it can be applied to the construction, there is a problem that it cannot be applied to repair of the wall surface of a structure such as a building or a bridge, especially in a high place where work cannot be performed without a scaffold.
As a panel surrounding the entire construction area, a panel (see Patent Document 5) provided with a fold curve and a locking projection that engages with the fold curve on the periphery of a substantially rectangular face plate, a plurality of iron plates, A soundproof wall comprising a pipe for connecting iron plates, a suspension type soundproofing device in which a sound absorbing material is housed, and a spacer that separates the iron plate and the suspension type soundproofing device to form an air layer (see, for example, Patent Document 6) Or a folding soundproof wall in which a bent portion is provided in one direction in two sheets, and a soundproof material made of styrofoam or glass wool is stored between the bent portions (see, for example, Patent Document 7) ) Has been proposed.
Assuming that the workers in the scaffolding are individually enclosed by using the panels and soundproof walls disclosed in Patent Documents 5 to 7, the worker needs to lift the panel up to the scaffolding and assemble with the scaffolding. . The panels and soundproof walls disclosed in Patent Documents 5 to 7 have a fixed form without bending and are heavy. Therefore, the work of installing a soundproof wall on the scaffold must be lifted above the height of the scaffold, and is extremely dangerous if the panel is dropped. In addition, scaffolds are generally used that are constructed by connecting struts, cloth materials, diagonal materials, etc. with wedges to form a frame, and mounting treads on the cloth materials. In addition to workers and work tools, etc. Installing a soundproof wall with a large load on the support, even if the construction of the soundproof wall is successful, there is a problem in terms of safety due to the load on the support, and removal work also takes time and effort However, it is extremely difficult to repeat the installation and removal of the soundproof wall according to the work position of the worker, and there is a problem that it is not suitable for use on a scaffold.
It has been proposed to use a sheet for soundproofing as it is lightweight and easy to transport. For example, eyelets are drilled at predetermined intervals along the length direction at one end edge of a square sheet made of knitted fabric, etc., and two rows of eyelets aligned inward and outward are drilled along the lateral direction on both upper and lower sides. A hook-and-loop fastener is extended to the outer side, and a connecting tool is inserted between the eyelets formed in the opposite positions by contacting the edges of adjacent separate sheets, and a plurality of sheets are formed with the hook-and-loop fastener. A sheet that is connected in the vertical direction and used as a sheet having an enlarged area has been proposed (see, for example, Patent Document 8).
In order to use the soundproof sheet disclosed in Patent Document 8 to install the work sound on the scaffolding so as to provide a sound insulation effect, the sheet is connected to a predetermined length on the ground in advance, and the two connected sheets having different widths are connected. It is conceivable that the sheets are crossed using a beam frame or the like so as not to hang down on the wall surface of the structure on which the material to be ground is provided, so as to surround the worker. However, it takes time and labor to connect and install the sheets, the workability is poor, the sound leaks from the gap between the sheets, and when two sheets with different widths are used crossing using the beam part There is a problem that it becomes difficult for the operator to enter and leave the working space surrounded by the seat along the length direction of the tread.
A pair of holes, each having two holes drilled close to the entire periphery of the rectangular sheet, is drilled at a predetermined interval, and the sheets are sequentially connected to the holes through a binding string, and the nail under construction In order to prevent scattering of steel bars and reinforcing bars, a scaffolding sheet that covers the outside of the entire scaffold has been proposed (see, for example, Patent Document 9).
The invention disclosed in Patent Document 9 can form a sheet having a large area for preventing scattering of fragments to the surroundings, but is formed in a hut shape so that an operator can work inside. There was a problem that it did not act to insulate the noise.
A band and a band are overlapped and joined to the central part of a rectangular sheet, and an opening is formed in the band along the length direction, and connected to the gap between the band and the sheet exposed to the opening. There has been proposed a construction sheet in which a string is inserted (see, for example, Patent Document 10).
The sheet disclosed in Patent Document 10 has a function of preventing sound leakage from the connecting portion when two sheets are connected on one side, but there is a problem that the entire periphery of the operator cannot be covered. .
There has been proposed an invention in which a seat is provided on the uppermost floor of a scaffolding provided with treads on a large number of floors to enable work during rainfall (see, for example, Patent Document 11).
In the invention disclosed in Patent Document 11, since the roof is formed of a sheet, there is an effect that an operator can avoid rainfall in the range of the structure and the scaffold for the work, but other than the roof is exposed. There was a problem that there was no sound insulation effect of work sound.
In addition, when a soundproof sheet is attached so as to wrap the entire scaffold, a large amount of soundproof sheets and attachment members are required in proportion to the size of the scaffold, which is very expensive and uneconomical. there were.
Registered Utility Model Gazette of Utility Model Registration No. 3168271 Japanese Utility Model Publication 2-35963 JP 2006-342592 A Japanese Patent Laid-Open No. 9-1111912 JP 2008-150799 A JP 2010-236322 A Japanese Utility Model Publication No. 4-13325 Registered Utility Model Gazette of Utility Model Registration No. 3167735 JP 2000-226934 A JP 2001-107570 A JP 2002-155631 A

  The invention of the present application was devised in view of the above-mentioned problems of the prior art, and enables an operator to easily carry, assemble, and dismantle the work on the tread, and at least the work sound generation position is soundproof. It is another object of the present invention to provide a mobile soundproofing device capable of insulating work sound at a low cost by being completely surrounded by a sheet member having sound insulation properties.

In order to achieve the above object, the invention according to claim 1 of the present invention is installed in a solid scaffold for performing construction on the wall surface of the structure, and is sound-insulated so as not to leak work sound to the outside. A mobile soundproofing device for installing a scaffold,
It consists of a tent body, an extension strip and a tread mat,
The tent main body, the extension strip, and the tread mat are made of a sheet member having a high soundproofing property, a high sound insulation property, a self-extinguishing property, a flexibility, a water tightness and a chemical resistance,
The tent body has a height capable of working with an adult male standing inside, and is formed in a substantially box shape with the ceiling surface, left and right side surfaces, and the rear side surface connected to open the front side,
On the front edge of the ceiling surface and the left and right side surfaces, a joint portion with the extension strip having a predetermined front-rear width is provided,
The ceiling surface can be suspended from the frame on the floor directly above the scaffold, and attachment pieces having eyelets are attached to the left and right edge and rear edge of the ceiling surface and the inner edge of the joint. ,
The left and right side surfaces are provided with an operator entrance made of a cut formed from the vicinity of the upper edge to the lower edge at a substantially central position in the front-rear width direction,
The worker doorway is closed so that the work sound from the worker doorway can be sound-insulated, a belt-like door is provided inside the left and right side surfaces, and the worker doorway is located on a substantially vertical center line of the belt-like door,
The extension strip is formed into a strip having a predetermined width and substantially the same length as the front end edge of the tent body, and a rear edge is provided with a joint that can be engaged with and detached from the joint of the tent body.
The tread mat is formed into a bag shape for storing a plate-like soundproof material using the sheet member,
Just below the tread on the upper floor, a telescopic tube equipped with armrests extending forward is detachably attached at an angle of 90 degrees to the column,
Laying the tread mat on the tread on which the operator works,
The tent body is attached by attaching the connecting tool attached to the eyelet to a frame provided slightly below the floor plate on the upper floor so that the front opening of the tent body opens toward the wall surface of the structure. Installed between the floor board on the upper floor and the floor board where the worker stands,
The armband is hung so that the portion near the opposing short side of the extension strip is overlapped with the tread on which the operator stands,
Engaging and connecting the joint provided at the front edge of the tent body and the joint provided at the rear edge of the extension strip;
The front end edge of the extension strip is in contact with the wall surface of the structure.
According to a second aspect of the present invention, the tread mat according to the first aspect is formed into a bag-like body that houses the plate-like soundproofing material using the sheet member, and the plate-like soundproofing material is placed on the bag-like body. The enclosed mats are arranged side by side and extend in the horizontal direction, and the mats are formed so as to be foldable by overlapping the mats with a soundproof material storage portion non-forming portion between the mats. .

Since the present invention uses a sheet member as a material and is lightweight and foldable, it is easy to carry and can be easily moved to a desired position.
The invention of the present application forms a sheet member in a substantially box shape with an opening on the front side, provides a mounting piece on the outside of the ceiling, and suspends it via a coupling member located under the tread on the upper floor, By engaging the joint provided on the front edge of the tent main body with the joint provided on the rear edge of the extension strip, the soundproof sheet can be positioned from all directions, including the operator, at the position where the work sound is generated. The installation work of the apparatus is extremely simple, and all directions are surrounded without gaps, so that the amount of work sound leaking is greatly reduced, and the work can be performed regardless of the weather.
The present invention uses a sheet member, and the inner volume is formed so as to surround the worker, and the extended belt-like body is continuously provided to extend to the front side. The number of parts is small, and there is an effect that it is economical by reducing the cost of the product.
Moreover, since the worker doorway is closed from the inside with a wide belt-like door, the sound insulation effect is high.

  Highly soundproof, soundproof, self-extinguishing, flexible, watertight, and chemical-resistant sheet materials are used as materials, and the building wall surface where workers generate sound and workers can be omnidirectional regardless of the work posture. With a shape that wraps around without any gaps, work is possible regardless of the weather, work noise leaks to 0 dB as much as possible, and only the locations that are related to the generation of work sound are installed, and work positions The soundproofing device installed at the old position according to the movement of the machine is disassembled and removed by simple removal work, transported to the new work position and newly installed, thereby reducing the cost of the soundproofing device and simplifying the installation and removal work. It was realized.

A first embodiment shown in FIGS. 1 to 9 will be described.
The mobile soundproofing device is mainly configured by attaching a tent body 1, an extension strip 2, a tread mat 3, and a telescopic tube 4 to a scaffold 5.

  The tent body 1 will be described with reference to FIG. The tent body 1 is made of a sheet member having a high soundproofing property, a high sound insulation property, a self-extinguishing property, a flexibility, a water tightness and a chemical resistance, and includes a ceiling surface 6, left and right side surfaces 7, 8, and a rear side surface 9. The front side is opened, and it is formed in a substantially box-like shape having a space where an adult male can stand while standing on the inside formed by the ceiling surface 6, the left and right side surfaces 7, 8 and the rear side surface 9. . The sheet member only needs to satisfy high sound insulation, high sound insulation, self-extinguishing property, flexibility, water tightness and chemical resistance, but is thin and can be cut with a cutter, such as Toyobo ST-1200 (Toyobo It is preferable to use a spinning product (trade name), a sound insulation sheet J (a product from Nitto Boseki Co., Ltd.) and a Sandam series (a product name from Zeon Kasei Co., Ltd.). The ceiling surface 6 has a rectangular shape in plan view, the front-rear width is substantially the same length as the shortest distance between the front column 10 and the rear column 11, and the length in the longitudinal direction is free for at least one adult male worker to stand. It is formed in such a length that can be operated smoothly. A rear side surface 9 is continuously provided on the rear side edge of the ceiling surface 6, and left and right side surfaces 7 and 8 are connected to the left and right side edge edges. The length in the height direction of the rear side surface 9 and the left and right side surfaces 7 and 8 is set to be at least the same as or slightly longer than the vertical length between the upper and lower treads 12 and 12. The left and right side surfaces 7 and 8 are formed in a good shape in which a cut is formed from the vicinity of the upper end edge to the lower end edge at the approximate center of the front-rear width or the middle position between the front end edge and the front end edge. It is a service entrance 13. Belt-like doors 14 and 14 are suspended inside the left and right side surfaces 7 and 8, respectively. The belt-like door 14 is formed so that the center line in the front-rear width of the belt-like door 14 is substantially the opening edge of the worker doorway 13 so as to cover the upper and lower ends of the worker doorway 13 from the inner side of the inner side surfaces of the left and right side surfaces 7 and 8. Try to match. At the periphery of the ceiling surface 6 of the tent body 1, a mounting piece 15 is provided at a position corresponding to the position of the scaffolding of the scaffold 5. Eyelets 16 are formed in the attachment piece 15. A connecting tool 30 made of a string or a hook is inserted into the eyelet 16 and attached thereto. In FIG. 1, the case where a hook is used as the connector 30 is illustrated. A joint portion 17 having a predetermined front-rear width is provided on the surface of the front end edge of the tent body 1.

  The extension strip 2 will be described with reference to FIGS. 2, 3 and 12. The extension strip 2 is formed in a strip having substantially the same length as the front edge length of the tent body 1. A joining portion 18 having a predetermined front-rear width is provided on the back surface of the rear end edge of the extension strip 2. The joint portion 17 of the tent body 1 and the joint portion 18 of the extension strip 2 are formed so as to be able to be engaged and disengaged. When the joint 18 and the joint 17 of the extension strip 2 are engaged and the extension strip 2 is attached to the front side of the tent body 1, the front edge of the extension strip 2 comes into contact with the wall surface of the structure 19. The front-rear width of the extension strip 2 is set. On the back surface of the extension strip 2, an attachment piece 21 with a eyelet 20 is attached.

  The tread mat 3 will be described with reference to FIGS. 4 and 5. The tread mat 3 is mainly composed of a soundproof material storage portion made of a sheet member having high soundproofing, high sound insulation, self-extinguishing, flexibility, water tightness and chemical resistance, and a plate shape having high soundproofing. The soundproof material 22 is used. A sheet-like soundproof material 22 having flat upper and lower surfaces made of styrofoam, glass wool, or the like is enclosed in a bag-like body in which the entire peripheral edges of sheet members disposed on the front surface side and the back surface side are bonded to form a mat 23. ing. The mats 23 are extended in the horizontal direction (the length direction of the tread 12) in two rows in the front-rear direction, and the mats 23, 23 are overlapped with each other as a fold in the soundproof material storage portion non-forming portion 24 between the adjacent mats 23, 23. By doing so, it can be folded in two. With the mats 23 and 23 deployed, the front-rear width is formed to be approximately the same as the shortest distance between the rear column 11 and the wall surface of the structure 19.

  The telescopic tube will be described with reference to FIG. The telescopic tube 4 accommodates the armband 26 inside the outer cylinder 25, and the telescopic tube 4 is formed to be telescopic by extending the armarm 26 forward and allowing it to be accommodated in the outer cylinder 25. . A clamp 27 is integrally attached to the outer surface of the rear end portion of the outer cylinder 25. A hook 28 is integrally attached to the outer surface of the front end portion of the outer cylinder 25. The telescopic tube 4 is preferably made of a high-strength metal such as steel.

The following operations and effects will be described.
As shown in FIGS. 7 and 8, the clamp 27 is fastened to the rear column 11, the hook 28 is suspended from the front and rear frame 29, and the telescopic tube 4 is installed between the rear column 11 and the front column 10. To do. The armband 26 is extended from the outer cylinder 25 to a position near the wall surface of the structure 19.
A connecting tool 30 such as a hook or string is inserted and attached to the eyelet 16 of the attachment piece 15 and attached to the front and rear frame 29 on the upper floor or the frame disposed below the tread 12 and the tent body 1 is attached. It is hung between the upper and lower treads 12 and 12. The extension band 2 is bridged between the armbands 26 and 26 so that the front end edge abuts against the wall surface of the structure 19, and a connecting tool such as a string inserted through the eyelet 20 is attached to the armband 26. The extension band 2 is integrally attached to the tent body 1 by engaging the portion 18 with the joint portion 17. On the tread 12 of the scaffold 5, the tread mat 3 is laid from the rear column 11 to the wall surface of the structure 19. Usually, an operator works by facing the wall surface at a distance away from the wall surface of the structure 19, so that the front edge of the floor mat 3 is laid on the floor plate 12 so that the front edge of the mat 3 contacts the wall surface of the structure 19. Even if it is done, the dangerous situation of dropping with the tread mat 3 by the weight of the worker does not occur.
In the first embodiment, an operator performs a grinding operation or the like on the wall surface of the structure 19 in the mobile soundproof device. The work sound is worked in an inner space surrounded by the structure 19, the tent body 1, the extension strip 2 and the tread mat 3, and the worker entrance 13 is closed by the strip door 13. That is, since the entire periphery of the worker is blocked from the outside, the working sound does not leak to the outside. Further, the connecting tool 30 is attached to a frame member, the telescopic tube 4 is laid between the front and rear columns 10 and 11, the extension strip 2 is bridged to the armband 26, and the joint 17 and the joint 18 are connected. Since the movable soundproofing device can be installed only by engaging and laying the tread mat 3 on the tread 12, there is an effect that the installation and movement are extremely simple and workability is improved. That is, the installation / removal work can be performed by a very simple work of attaching / removing the coupling tool, engaging / disengaging the joint, and the installation / moving work is simple, the work time is short, and the workability is improved. In addition, since the worker doorway 13 having the belt-like doors 14 is formed on the left and right side surfaces, the worker can freely enter and leave the mobile soundproofing device, and the volume of work sound from the worker doorway 13 is small. There is an effect. Since the mobile soundproofing device is formed in a hut style as a whole, there is an effect that it is possible to work even in bad weather such as rain and snowing without being influenced by the weather.

It is a perspective view of the tent main body of the state which attached the connection tool to the attachment piece. Example 1 It is a notch front view of the strip for extension. Example 1 It is an AA line expanded sectional view of FIG. Example 1 It is a perspective view of the mat for treads. Example 1 It is a center expanded horizontal sectional view of the mat for treads. Example 1 It is explanatory drawing of an expansion-contraction tube. Example 1 It is side surface explanatory drawing which shows the state which attached the expansion-contraction tube to the scaffold. Example 1 It is a notch front view which shows the state which attached the expansion-contraction tube to the scaffold. Example 1 It is a partially abbreviated side explanation which shows the state which installed the mobile soundproofing device in the scaffold. Example 1 It is a partially-omission front explanatory drawing which shows the state which installed the mobile soundproofing device in the scaffold. Example 1

DESCRIPTION OF SYMBOLS 1 Tent body 2 Extension band 3 Tread mat 4 Telescopic pipe 5 Scaffold 6 Ceiling surface 7 Left side surface 8 Right side surface 9 Rear side surface 10 Front column 11 Rear column 12 Tread plate 13 Worker doorway 14 Strip door 15 Mounting piece 16 Eyelet 17, 18 Joint portion 19 Structure 22 Plate-like soundproof material 23 Mat 24 Soundproof material storage portion non-formation portion 26 Armband 30 Connecting tool

Claims (2)

A mobile soundproofing device for installation of a scaffold, which is installed on a rigid scaffold to perform construction on the wall of the structure, and which insulates the work sound from leaking outside,
It consists of a tent body, an extension strip and a tread mat,
The tent main body, the extension strip, and the tread mat are made of a sheet member having a high soundproofing property, a high sound insulation property, a self-extinguishing property, a flexibility, a water tightness and a chemical resistance,
The tent body has a height capable of working with an adult male standing inside, and is formed in a substantially box shape with the ceiling surface, left and right side surfaces, and the rear side surface connected to open the front side,
On the front edge of the ceiling surface and the left and right side surfaces, a joint portion with the extension strip having a predetermined front-rear width is provided,
The ceiling surface can be suspended from the frame on the floor directly above the scaffold, and attachment pieces having eyelets are attached to the left and right edge and rear edge of the ceiling surface and the inner edge of the joint. ,
The left and right side surfaces are provided with an operator entrance made of a cut formed from the vicinity of the upper edge to the lower edge at a substantially central position in the front-rear width direction,
The worker doorway is closed so that the work sound from the worker doorway can be sound-insulated, a belt-like door is provided inside the left and right side surfaces, and the worker doorway is located on a substantially vertical center line of the belt-like door,
The extension strip is formed into a strip having a predetermined width and substantially the same length as the front end edge of the tent body, and a rear edge is provided with a joint that can be engaged with and detached from the joint of the tent body.
The tread mat is formed into a bag shape for storing a plate-like soundproof material using the sheet member,
Just below the tread on the upper floor, a telescopic tube equipped with armrests extending forward is detachably attached at an angle of 90 degrees to the column,
Laying the tread mat on the tread on which the operator works,
The tent body is attached by attaching the connecting tool attached to the eyelet to a frame provided slightly below the floor plate on the upper floor so that the front opening of the tent body opens toward the wall surface of the structure. Installed between the floor board on the upper floor and the floor board where the worker stands,
The armband is hung so that the portion near the opposing short side of the extension strip is overlapped with the tread on which the operator stands,
Engaging and connecting the joint provided at the front edge of the tent body and the joint provided at the rear edge of the extension strip;
A mobile soundproofing device characterized in that the front edge of the extension strip is in contact with the wall surface of the structure.   The tread mat is formed into a bag-like body that houses the plate-like soundproofing material using the sheet member, and the mats in which the plate-like soundproofing material is sealed are arranged in a row in the bag-like body and in the lateral direction. The mobile soundproofing device according to claim 1, wherein the mobile soundproofing device is formed so as to be foldable by extending and mating the mats with a soundproofing material storage portion non-forming portion between the mats as a fold.

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