JP2020165091A - Temporary enclosure and construction method thereof - Google Patents

Abstract

To provide a temporary enclosure allowing widening of a space width between the temporary enclosure and a platform edge part, and a construction method thereof.SOLUTION: A temporary enclosure has multiple vertical pipes (31), multiple horizontal pipes (32), multiple pieces of single clamps (10) having connection screws (16) on an outer side face, multiple L-angle members (20) having two holes allowing insertion of the connection screws, and one or more panels (33). The L-angle members (20) are mounted bridging between the connecting screws of the single clamps attached to predetermined positions of the vertical pipes and the connecting screws of the single clamps attached to end parts of the horizontal pipes, thus the vertical pipes and the end parts of the horizontal pipes are connected to form a lattice shape as a whole, to structure a framework, and a panel (33) can be mounted on one side face of the framework.SELECTED DRAWING: Figure 2

Description

The present invention relates to a temporary enclosure and a method for constructing the temporary enclosure, and more particularly to a temporary enclosure and a method for constructing the temporary enclosure, which is effective by being installed in a narrow space such as a platform of a station.

Temporary enclosures are known as equipment for enclosing the surroundings of construction sites and material storage areas only during the construction period for the purpose of ensuring the safety of passers-by and preventing theft of materials.
In recent years, in order to promote barrier-free access and improve user convenience, construction work is being carried out to install new escalators and elevators on the platform of stations, and temporary enclosures are used during such construction. There is.

In the conventional temporary enclosure, a single pipe is generally assembled in a grid pattern, and a panel is attached to the outside to cover the inner space. Further, conventionally, when assembling a plurality of single pipes in a grid pattern, a joint fitting called an orthogonal clamp is used. A technique for assembling a single pipe in a grid pattern by using an orthogonal clamp is described in, for example, Patent Document 1.

Japanese Patent Application Laid-Open No. 8-205348

By the way, many of the old station platforms are relatively narrow, and when a temporary enclosure is installed for construction at such a platform, the temporary enclosure and platform are used so as not to obstruct the passage of train users. There is a demand to secure as much space as possible between the edges.
However, as described in Patent Document 1, when the orthogonal clamp 40 is used to assemble the single pipe, as shown in FIG. 5 (A), between the outer panel 33 and the vertical pipe 31 It has been found that an extra gap C for one pipe (50 to 60 mm) is generated, and there is a problem that the width of the space between the temporary enclosure and the end of the platform is narrowed by that amount.

The present invention has been made by paying attention to the above-mentioned problems, and can be assembled so that the building ground and the horizontal ground are lined up on the same plane, whereby the gap between the outer panel and the pipe serving as the support is formed. It is an object of the present invention to provide a temporary enclosure and a method of constructing the temporary enclosure, which can increase the width of the space between the temporary enclosure and the edge of the platform.

In order to solve the above problems, the temporary enclosure according to the present invention is
A plurality of vertical pipes and a plurality of horizontal pipes, a plurality of single clamps having connecting screws on the outer surface, and a plurality of L-angle members having two holes through which the connecting screws can be inserted. And a temporary enclosure with one or more panels
The L-angle member so as to straddle between the connecting screw of the single clamp mounted at a predetermined position of the vertical pipe and the connecting screw of the single clamp mounted at the end of the horizontal pipe. By attaching the above, the ends of the vertical pipe and the horizontal pipe are connected and assembled so as to form a grid as a whole to form a skeleton, and the panel is attached to one side surface of the skeleton. It is configured in.

According to the temporary enclosure having the above structure, the pipes of the building site and the pipes of the horizontal area can be assembled so as to be lined up on the same plane, thereby creating a gap between the outer panel and the pipes to be the columns. If it is reduced and installed on the station platform, the width of the space between the temporary enclosure and the end of the platform can be increased.

Here, it is desirable that the two holes provided in the L-angle member have the same diameter and are formed at the same distance position from the corner side of the L-angle member. ..
According to such a configuration, since the L-angle member has a symmetrical shape, the work can be carried out without confusing the top and bottom.

Further, preferably, the L-angle member is formed so as to form a rectangular flat plate bent 90 degrees.
It is conceivable that the L-angle member has ribs on both sides and has a U-shaped cross section, but by making the shape like a bent flat plate, the work of turning the nut becomes easier. At the same time, it is possible to reduce the unit price of the member and reduce the cost.

Furthermore, other inventions according to the present application
A single clamp having at least one connecting screw on the outer side surface and two holes through which the connecting screw can be inserted and can be mounted across the connecting screw of the two single clamps. In the method of constructing a temporary enclosure, a temporary enclosure having a framework in which the ends of the horizontal pipes are connected to the vertical pipes by an angle member and assembled so as to form a grid as a whole is constructed.
The process of determining the number and spacing of vertical pipes to be used,
The process of preparing a plurality of horizontal pipes having a length corresponding to the interval, and
The process of assembling the single clamps in pairs into a connecting part connected by the L angle member, and
A step of mounting one single clamp of the connecting part at a predetermined height position of the vertical pipe so that the connecting screw faces one of the directions parallel to the panel.
For connecting one single clamp of the other joint part to the other single clamp of the joint part at a position separated by one pipe diameter from the one single clamp of the joint part mounted on the vertical pipe. The process of mounting the screw in the direction opposite to the direction of the screw for connecting the one single clamp of the joint part to which the screw has been mounted or in a direction different from 90 degrees in the horizontal plane.
It includes a step of connecting to the vertical pipe by fixing the end portion of the horizontal pipe to the other single clamp of the connecting part mounted on the vertical pipe.

Alternatively, a single clamp having at least one connecting screw on the outer surface and two holes through which the connecting screw can be inserted can be mounted across the connecting screw of the two single clamps. In the method of constructing a temporary enclosure, a temporary enclosure having a framework in which the ends of the horizontal pipes are connected to the vertical pipes to form a grid as a whole is constructed by the L-angle member.
The process of determining the number and spacing of vertical pipes to be used,
The process of preparing a plurality of horizontal pipes having a length corresponding to the interval, and
The process of assembling the single clamps in pairs into a connecting part connected by the L angle member, and
A step of fixing one single clamp of the two joint parts to both ends of the horizontal pipe so that the other single clamp of the joint part is in the opposite direction.
A step of mounting the other single clamp of the connecting part fixed to the end of the horizontal pipe at a predetermined height position of the vertical pipe, and
By mounting the coupling part at the end of the other lateral pipe at a position separated by one diameter of the pipe from the other single clamp of the mounted coupling part by the other single clamp of the coupling part. Include a step of connecting the horizontal pipe to the vertical pipe.

According to the above method, it is possible to efficiently assemble the framework of the temporary enclosure in which the pipes of the building site and the pipes of the horizontal area are assembled so as to be lined up on the same plane, and the temporary enclosure can be installed.
Further, a step of fixing the panel to the horizontal pipe connected to the vertical pipe constituting the frame by the L angle member may be further included by using a fastener.
This makes it possible to construct a temporary enclosure with a panel attached to the outer surface.

According to the temporary enclosure and the construction method thereof according to the present invention, the building site and the horizontal area can be assembled so as to be aligned on the same plane, thereby reducing the gap between the outer panel and the pipe serving as the support. It has the effect of increasing the width of the space between the temporary enclosure and the edge of the platform.

(A) and (B) are perspective views showing details of a single clamp and an L angle used to construct the temporary enclosure according to the present invention. It is a front view which shows the structural example of the temporary enclosure constructed by applying the construction method of the temporary enclosure which concerns on this invention. (A) and (B) are enlarged front views showing the details of the connecting portion between the vertical pipe (building site) and the horizontal pipe (horizontal area) of the temporary enclosure shown in FIG. (A) and (B) are enlarged side views showing an example of the attachment structure of the panel to the horizontal pipe (horizontal ground) in the temporary enclosure of the embodiment. (A) and (B) are front views showing the state of the process in the middle in an example of the method of constructing the temporary enclosure of the embodiment. The difference between the conventional temporary enclosure and the temporary enclosure according to the present invention is shown, and (A) a side view of the conventional temporary enclosure and (B) is a side view of an embodiment of the temporary enclosure according to the present invention.

Hereinafter, embodiments of the temporary enclosure and the method for constructing the temporary enclosure according to the present invention will be described with reference to the drawings.
FIG. 1 shows a configuration example of a single clamp 10 and an L angle 20 as joint fittings used to connect a vertical pipe (building site) and a horizontal pipe (horizontal area) when constructing a temporary enclosure according to the present invention. It is a perspective view. As shown in FIG. 1 (A), the single clamp 10 has a clamp body 11 having a U-shaped cross section and a "<" shape when viewed from above, and a pin on one end of the clamp body 11. The movable piece 13 rotatably mounted via the shaft 12A, the tightening bolt 14 rotatably mounted on the other end of the clamp body 11 via the pin shaft 12B, and the tightening bolt 14 are screwed together. A nut 15 is provided, a connecting screw 16 planted on the outer surface of the clamp body 11, and a nut 17 screwed into the connecting screw 16.

A hole through which the tightening bolt 14 can be inserted is formed on the tip end side of the movable piece 13, and after engaging the inside of the clamp body 11 with a predetermined position of the single pipe, the hole at the tip of the movable piece 13 is formed. A tightening bolt 14 is inserted into the pipe, and a nut 15 is screwed into the tip of the bolt so that the single clamp 10 can be fixed to the single pipe.
The L angle 20 has a width substantially the same as the thickness of the single clamp 10, and as shown in FIG. 1 (B), bolt insertion holes 21A and 21B are formed in each piece. Two single clamps 10 can be connected by inserting different connecting screws 16 of the single clamp 10 into the bolt insertion holes 21A and 21B and then screwing a nut 17 into the tip of the connecting screw 16. Has been done.

The positions of the bolt insertion holes 21A and 21B are set when the nut 17 is screwed into the connecting screw 16 inserted into one and then the nut 17 is screwed into the connecting screw 16 inserted into the other. The distance from the corner to each insertion hole is set so that the impact wrench) does not interfere with the screw on the side that has already been fixed. However, it is preferable that the bolt insertion holes 21A and 21B have the same diameter, and the distance from the corner side to the bolt insertion hole 21A and the distance from the corner side to the bolt insertion hole 21B are also the same. By doing so, the L angle 20 has no directionality and is easy to handle. Further, the L angle 20 is formed of a rigid material such as stainless steel or steel.

FIG. 2 shows a configuration example of the frame 30 of the temporary enclosure constructed by using the single clamp 10 and the L angle 20 of FIG. Although the panel attached to the side surface of the skeleton 30 is not shown in FIG. 2, the panel 33 of the temporary enclosure has the fastener 34 (see FIG. 4) attached to the single pipe 32 forming the horizontal ground of the skeleton 30. Installed using. The fastener 34 shown in FIG. 4A is composed of an Ω-shaped metal fitting 34A having hook portions 34a and 34b at both ends and a screw 34B screwed into the crown of the metal fitting 34A, and is an end of the panel 33. When the screw 34B is turned in the tightening direction with the hook portions 34a and 34b locked to the edge portion of the holding frame 36 that holds the portion, the hook portions 34a and 34b are pulled toward the pipe side, so that the single pipe pipe is used. 32 is sandwiched and fixed between the screw 34B and the holding frame 36.

As shown in FIG. 2, in the present embodiment, a plurality of single pipes 31 forming a vertical ground are installed at predetermined intervals, and a single pipe 32 forming a horizontal ground is provided between the vertical single pipes 31. For example, it is laid horizontally on the upper part and the lower part, and is connected by two single clamps 10 and one L angle 20 at the intersections with each other, and is configured to form a grid as a whole. The number of horizontal single pipes 32 is not limited to two per interval, and may be three or more.

The vertical single pipe 31 is provided with a base 31a made of a flat plate at the lower end thereof to maintain a vertical posture. Further, although not shown in FIG. 2, a frame composed of a vertical single pipe pipe 31 and a horizontal single pipe pipe 32 is arranged in a direction orthogonal to the paper surface, and when viewed from above, the frame is arranged. It is installed in a stable state by constructing a frame that forms a character or a rectangle.
In order to further improve the stability of the temporary enclosure, for example, in the temporary enclosure installed on the station platform, a support pipe may be provided between the beam supporting the roof of the platform and the upper end of the vertical single pipe 31. However, if there is space inside the temporary enclosure, support pipes arranged diagonally may be provided.

FIG. 3 shows the details of the connecting portion between the vertical pipe (building area) 31 and the horizontal pipe (horizontal area) 32 constituting the frame 30 of the temporary enclosure.
As shown in FIG. 3 (A), in the skeleton 30, two single clamps 10A and 10B are provided at a desired height position of the vertical pipe 31 with one pipe diameter and two connecting screws 16 respectively. Are mounted so as to project in the left-right lateral direction and 180 degrees different from each other. Then, corresponding to these single clamps 10A and 10B, the horizontal pipes 32A and 32B having the single clamps 10C and 10D mounted on the ends are oriented 180 degrees different from each other with the connecting screws 16 in the vertical direction. It is arranged so as to protrude.

Further, the L angle 20A is joined so as to straddle the connecting screw 16 of the single clamp 10A mounted on the vertical pipe 31 and the connecting screw 16 of the single clamp 10D mounted on the horizontal pipe 32B, and a nut (not shown) is formed. It is fixed by 17 (see FIG. 1). Similarly, the L angle 20B is joined so as to straddle the connecting screw 16 of the single clamp 10B mounted on the vertical pipe 31 and the connecting screw 16 of the single clamp 10C mounted on the horizontal pipe 32B. , Fixed by a nut 17 (see FIG. 1) (not shown).

As shown in FIG. 3B, the single clamps 10A and 10B can be attached in contact with each other without leaving a gap. Further, as shown by the alternate long and short dash line, it is possible to mount the L angles 20A and 20B in the same direction (up or down), but if this is done, the heights of the left and right horizontal pipes will shift. It ends up. On the other hand, as shown in FIG. 3A, the horizontal pipes (horizontal ground) 32A and 32B are mounted at the same height by mounting them at intervals of one pipe diameter and facing the opposite L angle. It can be arranged in a pipe, that is, the height can be made uniform.

Further, in the case of the installation as shown in FIG. 3 (B), there is no gap between the building site and the horizontal land, but in the case of the installation as shown in FIG. 3 (A), there is a gap between the building site and the horizontal land. , There is an advantage that it is possible to make fine adjustment of the horizontal land length.
Further, when the panel 33 is attached to the frame 30, it is most stable to fix the panel 33 to the horizontal pipes (horizontal ground) laid horizontally on the upper part and the lower part by using the fastener 34 with a relatively small number of horizontal pipes. .. Then, in that case, if there is a step between two horizontal pipes (horizontal grounds) that are attached side by side in the left-right direction with the vertical pipes (building grounds) in between, one of them is horizontal at a position away from the upper end or the lower end of the panel 33. Since it will be hung, the stability of the panel 33 will decrease. On the other hand, as described above, if the two horizontal pipes (horizontal grounds) have the same height, both pipes are arranged at positions close to the upper end or the lower end of the panel 33, and the panel 33 is attached to the two pipes. Therefore, there is an advantage that the stability is improved.

The fastener 34 is not limited to the one shown in FIG. 4A, and may have any configuration as long as the panel 33 can be attached in a state of being close to the horizontal pipe 32. .. For example, as shown in FIG. 4 (B), the panel 33 can be attached to the horizontal pipe 32 by using the Ω-shaped fastener 34 and the screws 35A and 35B. When the fastener 34 has such a configuration, the height position of the screw insertion hole formed in the panel 33 by mounting the single clamps 10A to 10D on the horizontal pipe 32 in the arrangement as shown in FIG. 3 (A). It is possible to prevent the screw insertion holes from being formed at the wrong height position, and it is possible to improve the appearance of the temporary enclosure after completion. Further, the panel 33 can be attached in a state closer to the horizontal pipe 32 as compared with the one shown in FIG. 4 (A). The nut into which the screws 35A and 35B of FIG. 4B are screwed may be welded to a predetermined position on the surface of the panel 33.

Further, in the temporary enclosure of the above embodiment using the single clamp 10 and the L angle 20, as shown in FIG. 5B, the vertical pipe (building site) 31 and the horizontal pipe (horizontal area) 32 are in the same plane (FIG. The skeleton 30 can be constructed so as to be arranged on a plane (a plane orthogonal to the paper surface).
Therefore, in the conventional temporary enclosure using the orthogonal clamp, as shown in FIG. 5A, the vertical pipe (building site) 31 and the horizontal pipe (horizontal area) 32 are arranged in a state of having a step. A gap C of 50 to 60 mm is created between the panel 33 attached to the side surface and the vertical pipe (building site) 31, and the width of the space to the end of the platform is narrow in the temporary enclosure installed on the station platform. However, in the temporary enclosure of the above embodiment, as shown in FIG. 5 (B), the gap between the panel 33 and the vertical pipe (building site) 31 disappears, and the space reaches the end of the platform. The width of the space can be increased.

Next, a method of constructing the temporary enclosure of the above embodiment will be described.
When constructing a temporary enclosure, first, the length and installation interval (pipe) of the vertical pipe (building site) 31 to be used according to the area of the construction site or material storage area where the temporary enclosure is to be provided, the height of the nearby structure, etc. Number) is decided. Next, a horizontal pipe (horizontal land) 32 having a length corresponding to the installation interval of the vertical pipe (building ground) 31, and a required number of single clamps 10 and an L angle 20 are prepared.
Then, first, a set of two single clamps 10 and joined at an L angle 20 (hereinafter, referred to as a joining part) are produced in a required number.

Subsequently, at the construction site, after installing the vertical pipe (building site) 31 so as to surround the target space, the above-mentioned coupling in which two single clamps 10 are connected at a predetermined height position of the vertical pipe (building site) 31. As shown in FIG. 5A, two parts are mounted so as to be arranged at intervals of one pipe diameter.
After that, the end portion of the horizontal pipe is aligned between the connecting parts mounted at the same height position of any two vertical pipes (building sites) 31, and the end portion is coupled to the single clamp 10. By repeating this work, after assembling the skeleton of one side of the temporary enclosure as shown in FIG. 2, the panel 33 is attached to the horizontal pipe (horizontal ground) 32 by using the fastener 34. Subsequently, the same work as described above is carried out for the other surfaces of the temporary enclosure to construct the temporary enclosure.
According to the above-mentioned work procedure, the building and the horizontal land can be assembled so as to be lined up on the same plane, and a single pipe can be efficiently assembled to construct a temporary enclosure.

Further, instead of mounting the connecting part in which the two single clamps 10 are bonded at a predetermined height position of the vertical pipe (building site) 31 as shown in FIG. 5 (A), as shown in FIG. 5 (B). Prepare a horizontal pipe (horizontal ground) 32 with connecting parts attached to both ends, and use a single clamp 10 at one end of the horizontal pipe (horizontal ground) 32 to determine one vertical pipe (building ground) 31. The skeleton 30 may be assembled by repeating the work of fixing at a height position and fixing the other vertical pipe (building site) 31 at a predetermined height position by a single clamp 10 at the other end.
The construction of the skeleton is not limited to the above procedure, and any of the four single clamps 10 may be arranged as shown in FIG. 3A.

Although the embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications and modifications can be made. For example, in the above embodiment, the L angle 20 used has a shape like a rectangular flat plate bent 90 degrees, but an L angle having ribs on both sides and a U-shaped cross section is used. Is also possible. If the cross section is U-shaped, the strength of the L angle can be increased compared to that of a flat plate, which is suitable for constructing a scaffold composed of pipes to be installed when constructing the outer wall of a building, for example. However, while the unit price of an L-angle with a U-shaped cross section increases and the work of turning the nut becomes difficult, the temporary enclosure to which the present invention is applied does not require higher strength than the scaffolding. It is desirable to use a flat plate-shaped L angle with low cost.

Further, the single clamp 10 of the above-described embodiment is shown in which one connecting screw 16 is provided on the outer surface, but connecting screws having different tip orientations of 90 degrees are provided on different outer surfaces of the clamp body 11. Each may be provided. According to the single clamp having two connecting screws in this way, by attaching to the vertical pipe (building ground) 31 arranged at the corner of the temporary enclosure, the horizontal pipe (horizontal ground) in two directions can be attached. ) 32 can be attached to the vertical pipe with one single clamp.
Further, in the above embodiment, a temporary enclosure in which a panel 33 is attached to one side surface of a frame in which a vertical pipe (building site) 31 and a horizontal pipe (horizontal area) 32 are assembled in a grid pattern has been described, but a sheet is used instead of the panel. And other members may be attached, or it may be installed in a skeleton state in which neither the panel nor the seat is attached.

10 Single clamp 11 Clamp body 13 Movable piece 14 Tightening bolt 16 Connecting screw 20 L angle 30 Frame 31 Vertical pipe (building site)
32 Horizontal pipe (horizontal land)
33 panel 34 fasteners

Claims (6)

A plurality of vertical pipes and a plurality of horizontal pipes, a plurality of single clamps having connecting screws on the outer surface, and a plurality of L-angle members having two holes through which the connecting screws can be inserted. And a temporary enclosure with one or more panels
The L-angle member so as to straddle between the connecting screw of the single clamp mounted at a predetermined position of the vertical pipe and the connecting screw of the single clamp mounted at the end of the horizontal pipe. By attaching the above, the vertical pipe and the end of the horizontal pipe are connected and assembled so as to form a grid as a whole to form a skeleton, and the panel is attached to one side surface of the skeleton. Temporary enclosure featuring. The first aspect of the present invention is that the two holes provided in the L-angle member have the same diameter and are formed at the same distance from the corner side of the L-angle member. The temporary enclosure described. The temporary enclosure according to claim 1 or 2, wherein the L-angle member is formed so as to form a rectangular flat plate bent 90 degrees. A single clamp having at least one connecting screw on the outer side surface and two holes through which the connecting screw can be inserted and can be mounted across the connecting screw of the two single clamps. It is a method of constructing a temporary enclosure in which the end portions of the horizontal pipes are connected to the vertical pipe by an angle member to construct a temporary enclosure having a framework assembled so as to form a grid as a whole.
The process of determining the number and spacing of vertical pipes to be used,
The process of preparing a plurality of horizontal pipes having a length corresponding to the interval, and
The process of assembling the single clamps in pairs into a connecting part connected by the L angle member, and
A step of mounting one single clamp of the connecting part at a predetermined height position of the vertical pipe so that the connecting screw faces one of the directions parallel to the panel.
For connecting one single clamp of the other joint part to the other single clamp of the joint part at a position separated by one pipe diameter from the one single clamp of the joint part mounted on the vertical pipe. The process of mounting the screw so that the direction of the screw for connecting the one single clamp of the joint part to which the screw is mounted is opposite to that of the screw or 90 degrees in the horizontal plane.
A step of connecting to the vertical pipe by fixing the end of the horizontal pipe to the other single clamp of the connecting component mounted on the vertical pipe.
A method of constructing a temporary enclosure, characterized in that it contains. A single clamp having at least one connecting screw on the outer side surface and two holes through which the connecting screw can be inserted and can be mounted across the connecting screw of the two single clamps. It is a method of constructing a temporary enclosure in which the end portions of the horizontal pipes are connected to the vertical pipe by an angle member to construct a temporary enclosure having a framework assembled so as to form a grid as a whole.
The process of determining the number and spacing of vertical pipes to be used,
The process of preparing a plurality of horizontal pipes having a length corresponding to the interval, and
The process of assembling the single clamps in pairs into a connecting part connected by the L angle member, and
A step of fixing one single clamp of the two joint parts to both ends of the horizontal pipe so that the other single clamp of the joint part is in the opposite direction.
A step of mounting the other single clamp of the connecting part fixed to the end of the horizontal pipe at a predetermined height position of the vertical pipe, and
By mounting the coupling part at the end of the other lateral pipe at a position separated by one diameter of the pipe from the other single clamp of the mounted coupling part by the other single clamp of the coupling part. The process of connecting the horizontal pipe to the vertical pipe,
A method of constructing a temporary enclosure, characterized in that it contains. 4. The fourth or fifth aspect of claim 4 or 5, further comprising a step of fixing the panel to the horizontal pipe connected to the vertical pipe constituting the frame by the L angle member by using a fastener. How to build the temporary enclosure described.

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