Temporary fence

Abstract

This product provides a temporary fence for use at events, etc., by inserting pipes into connecting devices and constructing it with fasteners. [Solution] The connector 1 is composed of pipes 8 and 8' into which pipes 8 and 8' can be freely inserted into fitting cylinders 10, 11, 20, 21, and 30 provided on the connector 1, and which are integrated by fastening of the fastener 5, and the pipes 8 and 8' are inserted into the fitting cylinders 10 etc. of a pair of opposing connectors 1. The connector 1 has a first horizontal fitting cylinder 10 with a horizontal opening that intersects at a right angle and a first vertical fitting cylinder 11 with a vertical opening, and a vertical crossbar 40 is provided that runs from the end side of the first horizontal fitting cylinder 10 at one end 41 along the first vertical fitting cylinder 11, and a second horizontal fitting cylinder 20 with a horizontal opening is provided at the other end 42 of the vertical crossbar 40, and a second vertical fitting cylinder 21 with a vertical opening is provided that intersects at a right angle with the second horizontal fitting cylinder 20 along the vertical crossbar 40, and a plurality of third horizontal fitting cylinders 30 with horizontal openings are provided in the middle of the vertical crossbar 40.

Description

Technical Field

[0001] This invention relates to a temporary fence constructed by inserting a pipe into a connector and fastening it. More specifically, it belongs to the technical field of temporary fences used for events and the like, which have an anti-rotation mechanism to prevent the inserted pipe itself from rotating in order to ensure the rigidity of the structure.

Background Art

[0002] Conventionally, regarding fences, the fence and connecting members described in Patent Document 1 below are known. This fence was made by adhesively fixing a pipe and a joint. Also, Patent Document 2 below is a pipe connector related to fixing by the wedge effect of moving pieces, but there is no idea of perfectly preventing the rotation of the pipe.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] Regarding the fence according to the above Patent Document 1, since the round pipe and the joint are adhesively fixed with an adhesive, the rotation of the round pipe does not occur, and the problem of torsion of the structure is unlikely to occur. However, it also requires time to adhere each joint and the pipe and to dry them, which takes a lot of manufacturing man-hours, and there is also a problem that it is difficult to disassemble when the structure is to be discarded. Furthermore, the pipe connector described in Patent Document 2 is designed to be easily disassembled by fixing it with bolts using the wedge action of the movable piece. However, since there is no mechanism to prevent the round pipe from rotating, the round pipe is prone to rotating relative to the connector, resulting in insufficient rigidity in the constructed surface structure. When lifting the square-shaped connector by holding each of the opposing sides, it bends and twists, and the twisting force is applied in the rotational direction, causing the bolts to loosen easily. Moreover, there is a risk that the movable piece may fall off and be lost if the bolts are loosened, and these are considered issues that need to be resolved.

[0005] Therefore, the object of the present invention is to provide a temporary fence that allows a fence to be constructed by connecting a pair of opposing connectors with a pipe, and for fixing the connectors that make up the fence to the round pipe, the fixing means is a detachable connection, where the wedge action of the movable piece by tightening a screw presses against the inner diameter surface of the round pipe and is fixed by tightening a bolt, and a rotation prevention mechanism is provided to stop the rotation of the round pipe and further prevent the movable piece from falling off. [Means for solving the problem]

[0006] As a means of solving the above problems, the invention described in claim 1 is a temporary fence comprising a connector 1 and pipes 8 and 8' into which pipes 8 and 8' can be freely inserted into fitting cylinders 10, 11, 20, 21, and 30 provided on the connector 1, and which are integrated by fastening of a fastener 5, wherein the pipes 8 and 8' are inserted into the fitting cylinders 10, 11, 20, 21, and 30 of a pair of opposing connectors 1, The aforementioned connector 1 is It has a first horizontal fitting cylinder 10 with a horizontal opening that intersects at a right angle and a first vertical fitting cylinder 11 with a vertical opening, A vertical crossbar portion 40 is provided that extends from the end side of the first horizontal fitting cylinder 10 at one end 41 along the first vertical fitting cylinder 11. A second horizontal fitting cylinder 20 with a horizontal opening is provided at the other end 42 of the vertical crossbar portion 40, and a second vertical fitting cylinder 21 with a vertical opening is provided along the vertical crossbar portion 40, intersecting the second horizontal fitting cylinder 20 at a right angle. Multiple third horizontal fitting cylinders 30 with horizontal openings are provided in the middle of the aforementioned vertical crossbar portion 40. This is a temporary fence characterized by the following features.

[0007] The invention described in claim 2 is such that the fitting cylinders 10, 11, 20, and 30 of the connector 1 are The fitting cylinders 10, 11, 20, and 30 have an inner diameter shape into which the outer shape of the pipes 8 and 8' can be inserted, an outer shape that can contact the circumferential surface of the inner diameter of the pipes 8 and 8', and a slit body 6 whose inner diameter gradually widens toward the opening direction of the fitting cylinders 10, 11, 20, and 30. The moving piece 7, which is non-rotatably fitted into the inner diameter shape of the slit body 6, and which moves along the axial direction of the fitting cylinders 10, 11, 20, 30, and the slit body 6 work together to create a wedge effect, causing the slit body 6 to press against the surface of the inner diameter shape of the pipes 8, 8', thereby fixing the pipes 8, 8' to the fitting cylinders 10, 11, 20, 30. The device comprises a fastener 5 with a headed bolt that penetrates the bottom J inside the fitting cylinders 10, 11, 20, and 30 and is screwed into the nut portion 71 of the movable piece 7 inside the fitting cylinders 10, 11, 20, and 30. The temporary fence described in claim 1 is characterized by the following:

[0008] The invention described in claim 3 is configured such that the projection 70 of the movable piece 7 is fitted into the gap 61 between the plurality of slit pieces 60 formed in the slit body 6 to stop the rotation of the movable piece 7, and the tip of the gap 61 of the slit body 6 is connected or a catch 62 is provided that protrudes into the gap 61, thereby preventing the movable piece 7 from falling out of the slit body 6. The temporary fence described in claim 2 is characterized by the following:

[0009] The invention described in claim 4 is a temporary fence equipped with a mechanism to prevent the rotation of the pipes 8, 8', The outer diameter shape of the aforementioned pipes 8 and 8' is formed to be circular. The fitting cylinders 10, 11, 20, 21, and 30 of the connector 1 have an inner diameter shape into which the outer shape of the pipes 8 and 8' can be inserted, and a convex portion T1 or a concave portion K1 is provided on the surface of the inner diameter shape of the fitting cylinders 10, 11, 20, 21, and 30. The outer surface of the ends of the pipes 8 and 8' is provided with a recess T2 or a protrusion K2 that is shaped to allow insertion into the protrusion T1 or recess K1 of the fitting cylinders 10, 11, 20, 21, and 30. The pipes 8 and 8' are provided with a rotation prevention mechanism that prevents them from rotating around their circumference, by inserting the recess T2 or protrusion K2 of the pipes 8 and 8' into the protrusion T1 or recess K1 of the fitting cylinders 10, 11, 20, 21, and 30, thereby inserting the pipes 8 and 8' into the fitting cylinders 10, 11, 20, 21, and 30. A temporary fence as described in claim 1 or 2, characterized by the above.

[0010] The invention described in claim 5 is a temporary fence equipped with a mechanism to prevent the rotation of the pipes 8, 8', The outer diameter shape of the pipes 8 and 8' is formed as a polygon such as a triangle or square, or as an ellipse, and the pipes 8 and 8' are equipped with a mechanism to prevent rotation around the circumference of the pipes 8 and 8'. A temporary fence as described in claim 1 or 2, characterized by the above.

[0011] The invention described in claim 6 is provided with a mechanism to prevent the rotation of the slit body 6, wherein a protrusion J2 or recess L2 is provided on the front surface 63 of the slit body 6, and a recess J1 or protrusion L1 is provided on the inner bottom surface J of the fitting cylinders 10, 11, 20, 30 that abut the front surface 63 of the slit body 6, and the protrusion J2 or recess L2 on the front surface 63 of the slit body 6 is inserted into the recess J1 or protrusion L1 on the inner bottom surface J of the fitting cylinders 10, 11, 20, 30 to prevent the rotation of the slit body 6. A temporary fence as described in claim 1 or 2, characterized by the above.

[0012] The invention described in claim 7 is characterized in that the connector 1 has an overlapping portion S for stacking the temporary fences made up of the connector 1, The overlapping portion S is provided at a portion continuous from each of the first horizontal fitting cylinder 10 and the second horizontal fitting cylinder 20 of the first horizontal fitting cylinder 10 and the second horizontal fitting cylinder 20 to the vertical bar portion 40. The temporary fence according to claim 1 or 2, characterized in that.

Effect of the Invention

[0013] According to the temporary fence of the present invention, by connecting between a pair of opposing connectors with a pipe and forming a surface by screw fastening, the manufacturing man-hours are significantly reduced compared to the conventional fence fixed by adhesion. Although it is a connection by wedge action, since an anti-rotation mechanism of the pipe is provided, the torsion of the entire structure can be suppressed, the rigidity is significantly increased, and the dropping of the moving pieces is also prevented, making it easier to manufacture. Also, even if the surface structure is lifted during handling at the time of assembly, no rotational force due to torsion occurs, and only a tightening force is applied to the bolts. Therefore, the bolts are difficult to loosen during assembly, and since it is a detachable fixing method, it is easy to disassemble when the fence is discarded.

Brief Description of the Drawings

[0014] [Figure 1] It is a perspective view (A) showing the completed state of assembling the temporary fence of the present invention and a perspective view (B) showing the assembling process. [Figure 2] (A) is a front view showing a connector, (B) is a side view of (A), and (C) is an A-A cross-sectional view of (B). [Figure 3] It is a perspective view showing the intermediate connecting piece in FIG. 1 disassembled. [Figure 4] (A) is a front view showing a slit body, (B) is an A-A cross-sectional view of (A), and (C) is a perspective view. [Figure 5] (A) is a front view showing a moving piece, (B) is a perspective view, and (C) is an exploded view showing the internal structure. [Figure 6] (A) is a perspective view showing a slit body, a nut portion, and a moving piece (internal structure), and (B) is a perspective view showing a state where the nut portion and the moving piece are loaded into the slit body. [Figure 7]This is a perspective view showing the cover component (cap). [Figure 8] (A) is a perspective view showing how to connect a pipe to the first horizontal fitting cylinder of the connector via a slit body. (B) is a different embodiment of (A). [Figure 9] This is a cross-sectional view of a fitting cylinder showing the cooperative wedge action between the movable piece and the slit body. [Figure 10] (A) is a perspective view showing how to connect a square pipe to the first horizontal fitting cylinder of the connector via a square slit body, and (B) is a perspective view showing how to connect a square pipe to the first horizontal fitting cylinder of the connector, which has an integrated slit body, via a movable piece. [Figure 11] (A) is a perspective view showing the temporary fences stacked and placed on top of each other, and (B) is an enlarged view showing a portion of the upper right corner of (A). [Figure 12] (A) is a cross-sectional view in the BB direction shown in Figure 11(B), and (B) is a cross-sectional view in the CC direction shown in Figure 11(B). [Modes for carrying out the invention]

[0015] The temporary fence of the present invention is a fence structure as shown in Figure 1, and is constructed by inserting pipes 8 and 8' into the fitting cylinders of the connecting member 1 and fastening them with fasteners 5, and is used, for example, to create guideways and ensure safety at stadiums, event venues, etc. Figure 2 shows the basic configuration of the disassembled temporary fence in this embodiment. In this basic configuration, horizontal pipes 8 can be freely inserted into fitting cylinders 10, 11, 20, and 30 on the connector 1, and vertical pipes 8' can be freely inserted into fitting cylinders 11 and 21. After inserting the pipes 8 into the fitting cylinders 10, 20, and 30 of a pair of opposing connectors 1 and fastening them with fasteners 5 to create a square surface, the vertical pipes 8' are then inserted into fitting cylinders 11 and 21 of the connector 1 to integrate the connector 1, pipes 8 and 8', and legs 9.

[0016] Let me explain the connector 1. As shown in the upper part of Figure 2, the connector 1 of this embodiment is made by injection molding of synthetic resin and has a first horizontal fitting cylinder 10 that opens horizontally at a right angle and a first vertical fitting cylinder 11 that opens vertically, and a vertical crossbar portion 40 is provided vertically, extending from the end side of the first horizontal fitting cylinder 10 at one end 41 along the first vertical fitting cylinder 11. Furthermore, a second horizontal fitting cylinder 20, similarly open in the horizontal direction, is provided at the other end 42 of the vertical crossbar portion 40, and a second vertical fitting cylinder 21, open in the vertical direction, is provided along the vertical crossbar portion 40, intersecting the second horizontal fitting cylinder 20 at a right angle. The corner connecting the first horizontal fitting cylinder 10 and the first vertical fitting cylinder 11 is cut out to allow fastening with a fastener 5 such as a bolt (Figure 8), but it is covered with a cover member C. Furthermore, two third horizontal fitting cylinders 30, which are horizontally open, are provided at equal intervals in the middle of the vertical crossbar section 40. However, the number of these third horizontal fitting cylinders 30 is not limited to these two locations.

[0017] Next, the collaborative wedge action between the movable piece 7 and the slit body 6 will be explained. As shown in Figures 2 and 4 to 9, each of the fitting cylinders 10, 11, 20, 21, and 30 of the connector 1 described above has an inner diameter shape that allows the outer shape of the pipes 8 and 8' to be inserted, and the slit body 6 of this embodiment has an outer shape that can contact the circumferential surface of the inner diameter shape of the pipes 8 and 8', and the inner diameter shape of each fitting cylinder gradually widens toward the opening direction. Then, the movable piece 7, as shown in Figure 5, is fitted non-rotatably into the inner diameter shape of the slit body 6 (Figure 6), and as the fitting cylinder 10 moves in the axial direction, the slit body 6 presses against the inner diameter shape of the pipes 8 and 8' through a wedge action in cooperation with the slit body 6, thereby fixing the pipes 8 and 8' to the fitting cylinders 10 and 11 (Figure 9). The movable piece 7 has a roughly frustoconical shape, with a larger area at the lower base than at the upper base, and its diameter widens from the upper base to the lower base (see Figure 5).

[0018] Here, we will explain the mechanism for preventing the movable piece 7 from falling out of the slit body 6. As shown in Figures 6A and 6B, the projection 70 of the movable piece 7 is inserted into the gap 61 between the slit pieces 60 of the slit body 1, and rotation of the movable piece 7 around the bolt 5 is prevented when the bolt 5 is screwed in, so that the movable piece 7 moves and tightens. In other words, by providing a protrusion 62 that extends into the gap at the tip of the gap 61 between the slit pieces 60, the slit body 6 expands in diameter in conjunction with the projection 70 of the movable piece 7 placed there, while preventing the movable piece 7 from falling out of the slit body 6. Similarly, connecting the tips of the gap 61 between the slit pieces 60 can also prevent the movable piece 7 from falling out. Therefore, as shown in Figure 8, the headed bolt fastener 5 penetrates the bottom J inside the fitting cylinder 10 and is screwed into the nut portion 71 of the movable piece 7 inside the fitting cylinder 10. The above-described configuration applies to the fitting cylinders 11, 20, and 30 as well. The slit body 6 may be an independent part, or, as shown in Figure 10B, the slit piece 60' may be integrally positioned within the inner diameter of each fitting cylinder 10 of the connector 1. In this case, it is not necessary to provide the convex or concave portion on the front surface 63 of the slit body 6 and the concave or convex portion on the inner bottom surface J of the fitting cylinder 10, which will be described below.

[0019] Next, we will explain the anti-rotation mechanism for pipes 8 and 8'. To prevent the pipes 8 and 8' in this temporary fence from rotating, the outer diameter of pipes 8 and 8' is formed in a circular shape, and the fitting cylinders 10 (11, 20, 21, 30) of the connector 1 have an inner diameter that allows the outer shape of pipes 8 and 8' to be inserted, and a convex portion T1 or a concave portion K1 is provided on the surface of the inner diameter of the fitting cylinders 10 (11, 20, 21, 30). In other words, the outer surface of the end of the horizontal pipe 8 is provided with a recess T2 that fits into a protrusion T1 of the fitting cylinder 10 or the like, with a shape that allows it to pass through (Figures 8A and 9). Alternatively, the outer surface of the end of the horizontal pipe 8 is provided with a protrusion K2 that fits into a recess K1 of the fitting cylinder 10 or the like, with a shape that allows it to pass through (Figure 8B). Therefore, by inserting the recess T2 or protrusion K2 of pipes 8 and 8' into the protrusion T1 or recess K1 of the fitting cylinder 10 (11, 20, 21, 30), pipes 8 and 8' are inserted into the fitting cylinder 10 (11, 20, 21, 30), effectively preventing rotation of pipes 8 and 8' around their circumference. Furthermore, if the outer diameter shape of pipes 8 and 8' is formed as a rectangle as shown in Figure 10A, or as a polygon such as a triangle or an ellipse (though not shown), then rotation of the pipe will not occur due to its outer shape, and it will not be necessary to provide protrusions or recesses on the fitting cylinder and the pipe.

[0020] Next, the mechanism for preventing the rotation of the slit body 6 will be explained. As shown in Figures 8 and 9, a protrusion J2 or recess L2 is provided on the front surface 63 of the slit body 6, and a recess J1 or recess L1 is provided on the inner bottom surface J of the fitting cylinder 10 or the like that abuts against the front surface 63 of the slit body 6. The protrusion J2 or recess L2 on the front surface 63 of the slit body 6 is fitted into the recess J1 or recess L1 on the inner bottom surface J of the fitting cylinder 10 or the like, thereby preventing the slit body 6 from rotating and stopping the rotation of the slit body 6 when the bolt 5 is screwed in. Furthermore, in order to facilitate the alignment of the slit body 6 when inserting the pipe into the fitting cylinder, the shape of the recess is designed to be elongated in the circumferential direction of rotation (J1, L2), creating a recess shape with some play to facilitate fitting (Figures 8A and 8B). Furthermore, as another embodiment of the mechanism to prevent rotation of the slit body 6, although not shown in the figures, the flange on the front of the slit body 6 has an outer diameter slightly smaller than the outer diameter of the pipes 8 and 8', and a recess or protrusion is provided on the front flange of the slit body 6 at the same position as the recess or protrusion on the pipes 8 and 8'. By ensuring that when the protrusion or recess of the fitting cylinder is inserted into the recess or protrusion of the pipe 8, the recess or protrusion of the front flange of the slit body 6 also passes through at the same time, the rotation of the slit body 6 can also be prevented.

[0021] The assembly procedure for the temporary fence mentioned above will now be explained. (1) The left and right connectors 1 are placed parallel to each other with a gap between them, and the horizontal pipes 8 are placed across the horizontal fitting cylinders 10, 20, and 30 of the left and right connectors 1, and the movable piece 7 inside the slit body 6 is tightened and fixed by the wedge effect caused by movement, thereby forming a surface (see Figures 1 and 8). To improve the appearance, a cover member C (Figure 7) made of a cap is fitted to the connection part between the first horizontal fitting cylinder 10 and the first vertical fitting cylinder 11 to hide the bolts 5, etc. (2) Next, a pair of halved intermediate connector pieces M1, as shown in Figure 3, are placed facing each other front and back, and joined together at equal intervals to the horizontal pipe 8. The horizontal pipe 8 is then clamped between the pair of clamping parts P and fastened with bolts 5 (see Figure 1). (3) Align the recess of the vertical pipe 8' with the protrusion T1 inside the fitting cylinder 21, etc., and pass it from the second vertical fitting cylinder 21 of the connector 1 towards the first vertical fitting cylinder 11. Then, pass the bolt 5 of the fastener 1 through the through hole E of the first horizontal fitting cylinder 11 (Figure 9), and tighten the bolt 5 to the nut 71 of the movable piece 7 inside the slit body 6, fixing the vertical pipe 8' to the connector 1 by the wedge effect caused by the movement of the movable piece 7 (see Figures 1B, 2, 8, and 9). (4) After that, attach the legs 9 to the lower end of the vertical pipe 8' and stand it up to complete the temporary fence (Figure 1A). Furthermore, the leg portion 9 can be positioned at any desired location by lifting the vertical pipe 8', which is movable relative to the leg portion 9, and rotating the leg portion 9. If the leg portion 9 is rotated exactly 90 degrees and then the vertical pipe 8' is returned to its original position, the protrusion of the leg portion 9 will be minimized.

[0022] Figures 11 and 12 show the overlapping sections S for stacking the temporary fences constructed with the aforementioned connector 1. In other words, the overlapping portion S consists of an overlapping portion S1 and a portion to be overlapped S2 into which the overlapping portion S1 abuts. As can be seen clearly in Figure 2B, it is provided in the portion that is continuous from the first horizontal fitting cylinder 10 and the second horizontal fitting cylinder 20 to the vertical crossbar portion 40. In the illustrated example in Figure 2B, at one end 41 of the vertical crossbar 40, the overlapping portion S1 is shaped like a mountain bulging to the right in the vicinity of the first horizontal fitting cylinder 10, and the overlapped portion S2 is shaped like a mountain bulging to the left of the vertical crossbar 40 on the opposite side of the overlapping portion S1, near the inside of the overlapping portion S1. Similarly, at the other end 42 of the vertical bar portion 40, the overlapping portion S1 is shaped like a mountain bulging to the right in the vicinity of the second horizontal fitting cylinder 20, and the overlapped portion S2 is shaped like a mountain bulging to the left of the vertical bar portion 40 on the opposite side of the overlapping portion S1 in the vicinity of the inside of the overlapping portion S2. Therefore, as shown in Figure 11, when the temporary fence is laid down for storage, it is neatly overlapped by the overlapping section S described above. That is, in the enlarged view of Figure 11B showing the upper right corner of Figure 11A where multiple temporary fences are overlapped, in the vertical direction of the temporary fence, the side surface of the overlapping section S2 on the back side and the side surface of the overlapping section S1 on the front side come into contact with each other, ensuring that it is fixed in place when overlapped (Figure 12A). Furthermore, in the lateral direction of the temporary fence shown in Figure 12B, the outer fitting cylinders 11 and other parts are recessed and restricted, ensuring that the stacked temporary fences remain immobile in all directions. Therefore, there is no need to worry about the load collapsing even when they are stacked and transported.

[0023] Although embodiments have been described above based on the drawings, it should be noted that the present invention is not limited to the illustrated examples and includes design modifications and variations in application that are ordinarily performed by those skilled in the art, without departing from the technical concept. [Explanation of Symbols]

[0024] 1. Connector 10 1st horizontal fitting tube 11. First vertical fitting cylinder 20 2nd horizontal fitting tube 21. Second vertical fitting cylinder 30 3rd horizontal fitting tube T1 protrusion K1 recess J Bottom L1 protrusion J1 recess E Through hole M1 Intermediate connection piece P holding part 40 Vertical crossbar section 41 one end 42 Other end 5. Fasteners (headed bolts) 6 Slit body 60 Slit pieces 61 Gap 62. Getting stuck 63 Anterior plane J2 Totsube L2 recess 7 Moving Pieces 70 protrusions 71 Nut 8 pipes (horizontal pipes) 8′ vertical pipe 9 Legs C. Concealing member T2 recess K2 protrusion S Overlap section S1 polymerization part S2 Polymerized part

Claims

1. A temporary fence comprising a connector and a pipe, wherein the pipe can be freely inserted into a fitting cylinder provided on the connector and the connector and the pipe are integrated by fastening a fastener, and the pipe is inserted into the fitting cylinder of a pair of opposing connectors, The aforementioned connector is It has a first horizontal fitting cylinder with a horizontal opening that intersects at a right angle and a first vertical fitting cylinder with a vertical opening, A vertical crossbar is provided that extends from the end side of the first horizontal fitting cylinder at one end along the first vertical fitting cylinder, A second horizontal fitting cylinder with a horizontal opening is provided at the other end of the aforementioned vertical bar, and a second vertical fitting cylinder with a vertical opening is provided along the vertical bar, intersecting the second horizontal fitting cylinder at a right angle. Multiple third horizontal fitting cylinders with horizontal openings are provided in the middle of the aforementioned vertical crossbar section. A temporary fence characterized by the following features.

2. The fitting cylinder of the aforementioned connector is The fitting cylinder has an inner diameter shape into which the outer shape of the pipe can be inserted, an outer shape that can contact the circumferential surface of the inner diameter of the pipe, and a slit body whose inner diameter gradually widens toward the opening direction of the fitting cylinder. The moving piece, which is non-rotatably fitted into the inner diameter shape of the slit body, and the cooperative wedge action between the moving piece, which moves in the axial direction of the fitting cylinder, and the slit body, causes the slit body to press against the inner diameter shape of the pipe, thereby fixing the pipe to the fitting cylinder. It comprises a fastener consisting of a headed bolt that penetrates the bottom of the fitting cylinder and is screwed into the nut portion of the movable piece inside the fitting cylinder. A temporary fence as described in claim 1, characterized by the above.

3. The configuration is such that the projections of the movable piece are fitted into the gaps between the multiple slit pieces formed in the slit body to stop the rotation of the movable piece, and the ends of the gaps in the slit body are connected or a catch is provided in the gap so that the movable piece does not fall out of the slit body. A temporary fence as described in claim 2, characterized by the above.

4. A temporary fence equipped with a mechanism to prevent the aforementioned pipe from rotating, The outer diameter shape of the aforementioned pipe is formed to be circular, The fitting cylinder of the connector has an inner diameter shape into which the outer shape of the pipe can be inserted, and the surface of the inner diameter shape of the fitting cylinder is provided with a convex or concave portion. The outer surface of the end of the pipe is provided with a recess or protrusion that is shaped to allow insertion into the protrusion or recess of the fitting cylinder. The pipe is fitted into the fitting cylinder by inserting the recess or protrusion of the pipe into the protrusion or recess of the fitting cylinder, thereby providing a pipe rotation prevention mechanism that prevents the pipe from rotating around its circumference. A temporary fence as described in claim 1 or 2, characterized by the above.

5. A temporary fence equipped with a mechanism to prevent the aforementioned pipe from rotating, The outer diameter shape of the pipe is formed as a polygon such as a triangle or square, or as an ellipse, and the pipe is equipped with a mechanism to prevent rotation around its circumference. A temporary fence as described in claim 1 or 2, characterized by the above.

6. The slit body is provided with a mechanism to prevent rotation of the slit body, which includes a convex or concave portion on the front surface of the slit body, a concave or convex portion on the inner bottom surface of the fitting cylinder that abuts against the front surface of the slit body, and a mechanism to prevent rotation of the slit body by inserting the convex or concave portion on the front surface of the slit body into the concave or convex portion on the inner bottom surface of the fitting cylinder. A temporary fence as described in claim 1 or 2, characterized by the above.

7. The connector has an overlapping section for stacking the temporary fences made up of the connector, The overlapping portion is provided in the portion that is continuous from each of the horizontal fitting cylinders of the first horizontal fitting cylinder and the second horizontal fitting cylinder to the vertical crossbar portion. A temporary fence as described in claim 1 or 2, characterized by the above.

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