JP7321105B2 - Protective panel for scaffolding and scaffolding using the same - Google Patents

Description

TECHNICAL FIELD The present invention relates to a protective panel for scaffolding and a scaffold using the same, which is used for suspended scaffolding installed at work sites such as construction of new bridges, repair, and replacement of floor slabs.

Conventionally, when erecting steel girders and constructing floor slabs on bridges such as general roads and highways, construction work is carried out by setting up work scaffolds directly under the steel girders. In addition, even if the steel girders of an existing steel bridge are deteriorated and damaged, work scaffolding will be installed directly under the steel girders to repair, reinforce, and process the damaged parts. In addition, when the floor slabs have deteriorated, the existing floor slabs are removed from the main girder and new floor slabs are erected to replace the existing floor slabs. Work scaffolding will be installed. In these cases, there are often roads in service below and in the vicinity of the construction site, and scaffolding cannot be erected from the ground. Therefore, in such bridges, suspended scaffolds that are suspended from bridge girders or the like are used (see, for example, Patent Document 1).

Conventional suspended scaffolding consists of a floor section that connects multiple pipes (Oyago) extending in the direction of the bridge axis and multiple pipes (rollers) extending in the direction perpendicular to the bridge axis with connecting fittings (clamps), and Equipped with a side part (morning glory) formed by connecting a large number of pipes (nakasan) extending to the bridge axis and a large number of pipes (construction site) extending in the direction perpendicular to the bridge axis with connecting fittings (clamps), and these are attached by a large number of hanging chains. It is installed by hanging from the bridge body.

Utility Model Registration No. 3120301

By the way, specifications such as assembly shape are determined with the wind load as a design condition for the suspended scaffolding. becomes large, and there is a problem that durability against excessive wind loads caused by strong winds such as typhoons and storms is not sufficient. Also, if a pipe with a large outer diameter is used for the side pipe, the bending strength of the pipe increases and the durability against wind pressure can be improved. There is a problem that the burden on the worker increases when assembling and dismantling the scaffolding.

The present invention has been made in view of the above-mentioned problems, and its object is to provide a protective panel for scaffolding and a scaffold using the same that can reduce the influence of strong wind on the side part. be.

In order to achieve the above object, the present invention provides a scaffold protection panel provided on a scaffolding having a side portion formed by connecting a plurality of pipes and covering the side portion of the scaffolding, comprising: a panel body attached to the side portion; and a plurality of opening and closing members for opening and closing at least a part of the panel body, the opening and closing members being connected to each other in a foldable manner, and attached to the panel body so as to be movable in the width direction, and the side portions can be opened by folding the opening and closing members . It is configured to open the covered part .

Further, in order to achieve the above object, the present invention provides a scaffold protective panel that is provided on a scaffold having a side portion formed by connecting a plurality of pipes and covers the side portion of the scaffold. A plurality of panel bodies having a large number of openings are detachably attached to the side surface portion as described above, and a first mounting hole is provided in one panel body and the other panel body, and the other panel body The opening of each panel body is formed by inserting the mounting member provided on the side surface into the first mounting hole of each panel body. By inserting the mounting members into the first mounting hole of one panel body and the second mounting hole of the other panel body, the openings of the respective panel bodies communicate with each other and the position of the other panel body is shifted. It is configured to be covered by the non-opening portion of the panel body .

In the present invention, by folding and opening the opening/closing member of the protection panel, the wind passes through the opening of the protection panel opened by the opening/closing member, thereby reducing the wind load on the side protection panel. In another configuration of the present invention, the opening of the protective panel is opened by shifting the positions of the panel bodies that are superimposed on each other and communicating the openings of the panel bodies.

According to the present invention, by opening the opening of the protection panel, the wind load generated on the side protection panel can be reduced, so the influence of the strong wind on the side can be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS The front view of the suspended scaffolding which shows the 1st Embodiment of this invention Partial perspective view of suspended scaffolding Front view of protection panel Schematic plan view of protective panel Schematic plan view showing the operation of the protection panel Partial perspective view of suspended scaffolding showing movement of protective panels Partial perspective view of a suspended scaffold showing a modification of the first embodiment Partial perspective view of suspended scaffolding showing movement of protective panels Partial perspective view of suspended scaffolding showing another example of protective panel operation The front view of the protective panel showing the first reference example of the present invention. Schematic plan view of protective panel Schematic plan view showing the operation of the protection panel Partial perspective view of suspended scaffolding showing movement of protective panels Front view of a protection panel showing a second reference example of the present invention Schematic plan view of protective panel Schematic plan view showing the operation of the protection panel Partial perspective view of suspended scaffolding showing movement of protective panels Partial perspective view of suspended scaffolding showing movement of protective panels Partial perspective view of a suspended scaffold showing a second embodiment of the present invention Front view of panel body Front view of the protective panel showing the opening open Front view of the protective panel showing the opening closed Partial side view of the side part showing the mounting state of the protective panel Partial side view of the side part showing the installation process of the protection panel Partial plan view of the protective panel showing the opening opened Partial plan view of the protective panel showing the process of closing the opening Partial plan view of the protective panel showing the process of closing the opening Partial plan view of the protective panel showing the opening closed

FIGS. 1 to 9 show a first embodiment of the present invention, which is used at work sites such as new construction of a bridge, repair, replacement of floor slabs, etc., and is a suspended scaffold that is suspended from a bridge body. is shown.

In the bridge shown in the figure, a plurality of main girders 1 arranged at intervals in the width direction are supported by bridge piers 2 , and a floor slab 3 is installed on each main girder 1 . Further, below each main girder 1, a suspended scaffold 10 that is hung from the main girder 1 is installed.

The suspended scaffolding 10 consists of a floor portion 11 arranged below the bridge body and side portions 12 (morning glory) extending obliquely upward and outward from both ends of the floor portion 11 in the direction perpendicular to the bridge axis. The floor part 11 and the side parts 12 are suspended from the bridge body side by a large number of suspension chains 13 , and the lower surface side of the floor part 11 is covered with a protective net 14 . A scaffolding board 15 is placed on the floor portion 11 . In addition, although not shown, in many cases, a protective work with a wooden board (plywood) or the like pasted on the floor 11 inside the suspended scaffold is also installed for the purpose of protecting the roadway below. Also, the side portion 12 is covered with a plurality of protection panels 16 .

The floor portion 11 is formed by connecting a plurality of first pipes 11a (tops) extending in the direction of the bridge axis and a plurality of second pipes 11b (rollers) extending in the direction perpendicular to the bridge axis using connecting fittings (not shown). formed.

The side portion 12 includes a plurality of third pipes 12a (center) extending in the direction of the bridge axis, and a plurality of fourth pipes 12b (building site) extending obliquely upward along a direction orthogonal to the third pipes 12a. are connected by a connecting fitting (not shown). The side surface portion 12 is connected to the floor surface portion 11 by a plurality of obliquely extending fifth pipes 12c.

The protective panel 16 is composed of a rectangular frame-shaped panel main body 16a and a pair of opening/closing members 16b attached to the panel main body 16a. .

The panel main body 16a is made of, for example, a steel material having a U-shaped cross section, and is formed so that the vertical dimension is equal to the interval between the third pipes 12a of the side portion 12, and the horizontal dimension is the same as that of the side portion 12. is formed so as to be equal to the interval of the fourth pipe 12b.

Each opening/closing member 16b is made of a plate material such as punching metal, and is arranged side by side inside the panel body 16a. The opening and closing members 16b are rotatably connected at one end in the width direction to each other via a hinge 16c, and the other ends in the width direction of each opening and closing member 16b are arranged at the upper and lower sides of the panel main body 16a via a support shaft 16d. are fitted so as to be slidable in any direction. As a result, when each opening/closing member 16b is moved from the closed state to the center in the width direction while rotating about the hinge 16c, each opening/closing member 16b is folded toward the center in the width direction, and the opening inside the panel main body 16a. is open to the public.

In the suspended scaffold 10 , the protection panel 16 is attached to the side portion 12 by fixing the panel body 16 a of the protection panel 16 to the third pipe 12 a and the fourth pipe 12 b of the side portion 12 . In that case, the whole side part 12 is covered with the protection panel 16 by arranging and attaching the several protection panel 16 to a vertical direction and a horizontal direction.

Here, when the wind is strong or the occurrence of strong wind is predicted, the opening/closing members 16b of the protection panels 16 are folded to open the protection panels 16 as shown in FIG. As a result, the wind passes through the openings of the protection panel 16 opened by the opening/closing members 16b, so that the wind load on the protection panel 16 is reduced.

As described above, according to the present embodiment, the protective panel 16 covering the side portion 12 of the suspended scaffolding 10 is formed to be openable and closable. The load can be reduced, and the influence of strong wind on the side portion 12 can be reduced.

In addition, since the protection panel 16 is composed of a panel body 16a attached to the side portion 12 and an opening/closing member 16b provided on the panel body 16a, the number of protection panels 16 corresponding to the size of the side portion 12 is arranged side by side. By doing so, the work of covering the side portion 12 with the protective panel 16 can be performed very easily at the site of installation of the suspended scaffold.

Furthermore, since the opening and closing member 16b for opening and closing the protection panel 16 is folded to open the portion covering the side surface 12, the opening and closing operation of the protection panel 16 can be easily performed, and the opening and closing member 16b can be easily opened and closed during strong winds. Opening can be done quickly.

In the above-described embodiment, two opening/closing members 16b are attached to the panel body 16a of the protection panel 16. However, as in the modified examples shown in FIGS. Four opening/closing members 16b may be attached to each horizontally long panel body 16e. In this case, as shown in FIG. 8, each opening/closing member 16b may be moved toward the center of the panel body 16e in the width direction to open the protection panel 16, or as shown in FIG. The protective panel 16 may be opened by moving to either one of the widthwise one end and the other end of the panel main body 16e.

In addition, in the modified example, each opening/closing member 16b is attached to the frame-shaped panel main body 16e, but each opening/closing member is attached to a plurality of rail-shaped members arranged at intervals in the vertical direction. 16b may be attached.

FIGS. 10 to 13 show a first reference example of the present invention, and constituent parts equivalent to those of the first embodiment are denoted by the same reference numerals.

The protection panel 17 of the present embodiment is composed of a rectangular frame-shaped panel body 17a and a pair of opening/closing members 17b attached to the panel body 17a. It's becoming

As in the first embodiment, the panel body 17a is made of, for example, a steel material having a U-shaped cross section, and is formed so that the vertical dimension is the same as the interval between the third pipes 12a of the side surface 12. The lateral dimension is formed to be equal to the interval between the fourth pipes 12b of the side portion 12. As shown in FIG.

Each opening/closing member 17b is made of a plate material such as punching metal, and is arranged side by side inside the panel body 17a. The upper and lower ends of the opening/closing members 17b are fitted to the upper and lower sides of the panel body 17a so as to be slidable in the width direction. Thus, as shown in FIG. 13, when one or the other opening/closing member 17b in the width direction is slid from the closed state to the other in the width direction, the one end or the other end in the width direction of the opening of the panel body 17a is opened. It's becoming

According to this reference example , by opening the opening/closing member 17b of the protection panel 17, the wind passes through the opening of the protection panel 17, so that the wind load generated on the protection panel 17 of the side portion 12 can be reduced. It is possible to reduce the influence of strong wind on the side portion 12 .

In the first reference example , each opening/closing member 17b is slidably provided on the panel main body 17a, but one of the width direction one end side and the other width direction side of the panel main body 17a is slidable. The other opening and closing member may be closed by a plate member fixed to the panel body 17a.

FIGS. 14 to 18 show a second reference example of the present invention, and constituent parts equivalent to those of the first embodiment are indicated by the same reference numerals.

The protection panel 18 of this reference example comprises a rectangular frame-shaped panel body 18a and a pair of opening/closing members 18b attached to the panel body 18a. It's becoming

As in the first embodiment, the panel body 18a is made of, for example, a steel material having a U-shaped cross section, and is formed so that the vertical dimension is the same as the interval between the third pipes 12a of the side surface 12, The lateral dimension is formed to be equal to the interval between the fourth pipes 12b of the side portion 12. As shown in FIG.

Each opening/closing member 18b is made of a plate material such as punching metal, and is arranged side by side inside the panel body 18a. Each opening/closing member 18b has one end in the width direction and the other end rotatably connected to a support shaft 18c, and the support shaft 18c is fixed to the center of the panel body 18a in the width direction. As a result, as shown in FIGS. 17 and 18, when one or the other opening/closing member 18b in the width direction is rotated in the other width direction around the support shaft 18c from the closed state, the one width direction end side of the opening of the panel body 18a is rotated. Alternatively, the other end side is open.

According to this reference example , by opening the opening/closing member 18b of the protection panel 18, the wind passes through the opening of the protection panel 18, so that the wind load generated on the protection panel 18 of the side portion 12 can be reduced. It is possible to reduce the influence of strong wind on the side portion 12 .

In the second reference example , each opening/closing member 18b is rotatably provided on the panel main body 18a. It may be constructed such that it is opened and closed by a movable opening/closing member, and the other is closed by a plate-shaped member fixed to the panel main body 18a.

19 to 28 show a second embodiment of the present invention, and the same reference numerals are given to the same components as in the first embodiment.

The protective panel 19 of this embodiment includes a plurality of panel bodies 19a, each panel body 19a being detachably attached to the side surface portion 12. As shown in FIG.

The panel main body 19a is made of a metal plate having a large number of circular openings 19b, and is made of punching metal, for example. A plurality of openings 19b are arranged in a zigzag manner at equal intervals in the vertical and horizontal directions, and are provided over substantially the entire panel body 19a. Each panel body 19a is formed to have the same shape (same outer dimensions and the same number and arrangement of openings 19b), and is used in a double layered manner. Each opening 19a communicates with each other. The openings 19a are provided at equal distances L1 in the width direction of the panel body 19a. The opening 19b is covered with a non-opening portion (a portion without a hole) of the other panel body 19a.

In each panel body 19a, a first mounting hole 19c and a second mounting hole 19d for mounting the panel body 19a to the side surface portion 12 are provided on both sides of the upper end in the width direction and on both sides of the lower end in the width direction. The first mounting hole 19c consists of a predetermined opening 19b. The second mounting hole 19d is formed to have the same size as the first mounting hole 19c, and is provided on one side (left side in the figure) of the first mounting hole 19c separately from the opening 19b. In this case, the second mounting holes 19d are provided so as to be positioned between the vertically adjacent openings 19b, and are spaced apart from the first mounting holes 19c by the distance L2.

A mounting member 19e for mounting the panel body 19a to the side surface portion 12 is provided on the third pipe 12a of the side surface portion 12 so as to extend in a direction perpendicular to the side surface portion 12. The mounting member 19e is a male screw. formed by The mounting member 19e is inserted through the first mounting hole 19c or the second mounting hole 19d of the two-layered panel body 19a, and by screwing the thumbscrew 19f into the mounting member 19e, each panel body 19a is attached to the third panel. It is fastened to the pipe 12a and fixed to the side surface portion 12. As shown in FIG.

In the protection panel 19 constructed as described above, each panel body 19a is attached to the side surface 12 so that the mounting member 19e is inserted into each first mounting hole 19c of the panel body 19a, which is double-layered so that the outer circumferences of the panel body 19a are aligned. , the openings 19a communicate with each other as shown in FIG. Also, as shown in FIG. 26, one panel main body 19a is removed, and after shifting in the width direction as shown in FIG. By attaching one panel main body 19a so that 19e is inserted, each opening 19b of each panel main body 19a is covered with a non-opening portion of each panel main body 19a.

According to the protection panel 19 of this embodiment, a plurality of panel bodies 19a having a large number of openings 19b are detachably attached to the side surface 12, and the panel bodies 19a are overlapped in the thickness direction and Since each opening 19b is opened and closed by shifting the position of the panel body 19a with respect to the other panel body 19a in the thickness direction, each opening 19b can be opened by shifting the panel body 19a. Air can pass through the opening 19b. Thereby, the wind load generated on the protection panel 18 of the side portion 12 can be reduced, and the influence of the strong wind on the side portion 12 can be reduced.

In each of the above embodiments, a suspended scaffold for a bridge is shown, but the present invention is not limited to a suspended scaffold, and can be applied to scaffolds installed on the ground and scaffolds installed on structures other than bridges. can be used.

Moreover, each of the above-described embodiments is an example of the present invention, and the present invention is not limited to those described in each of the above-described embodiments.

DESCRIPTION OF SYMBOLS 10... Hanging scaffold 11... Bottom part 12... Side part 12a... Third pipe 12b... Fourth pipe 16... Protection panel 16a... Panel main body 16b... Opening/closing member 16e... Panel main body 17 Protective panel 17a Panel main body 17b Opening/closing member 18 Protective panel 18a Panel main body 18b Opening/closing member 19 Protective panel 19a Panel main body 19b Opening.

Claims (3)

In a scaffolding protective panel provided on a scaffold having a side portion formed by connecting a plurality of pipes and covering the side portion of the scaffold,
a panel body attached to the side portion;
a plurality of opening and closing members for opening and closing at least a portion of the panel body ,
Each opening and closing member is connected to each other in a foldable manner and attached to the panel body so as to be movable in the width direction,
By folding the opening/closing member, the part covering the side part is opened.
A protective panel for scaffolding characterized by: In a scaffolding protective panel provided on a scaffold having a side portion formed by connecting a plurality of pipes and covering the side portion of the scaffold,
A plurality of panel bodies detachably attached to the side surface so as to overlap each other in the thickness direction and having a large number of openings,
A first mounting hole is provided in each of one panel body and the other panel body, and a second mounting hole is provided in the other panel body, the first mounting hole being displaced from the position of the first mounting hole,
By inserting the mounting member provided on the side surface portion into the first mounting hole of each panel body, the openings of each panel body communicate with each other, and the position of the other panel body is shifted to attach the mounting member to one panel. The opening of each panel body is covered with the non-opening of each panel body by inserting the first mounting hole of the main body and the second mounting hole of the other panel body.
A protective panel for scaffolding characterized by: Equipped with the protective panel according to claim 1 or 2
A scaffold characterized by:

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