JP2021075871A - Pipe connecting mechanism used in frame member for suspended scaffold - Google Patents

Abstract

To provide a pipe connecting mechanism used for a frame member for a suspended scaffold capable of extremely easily constructing a frame member for a scaffold corresponding to a curved skeleton such as an expressway like an assembling work similar to a linear skeleton.SOLUTION: A pipe connecting mechanism used for a frame member for a suspended scaffold for constructing a floor surface by laying a scaffold tread comprises a pipe holding part having a substantially U-shaped cross section in which a top surface part and side wall parts hanging downward from both sides of the top surface part are provided to face each other; a pipe frame disposed between the side wall parts is coupled to the pipe holding part via a bolt penetrating through a bolt through-hole formed coaxially in the side wall part; the interval between the side wall parts is set wider than the outer diameter of the pipe frame so that the pipe frame is movable in the bolt axial direction, and a gap is formed in the bolt axial direction.SELECTED DRAWING: Figure 1

Description

The present invention relates to a pipe connecting mechanism used for a frame member for a suspended scaffold that constructs a floor surface by connecting the frame members to form a scaffold within a predetermined range and laying a scaffold plate on each frame member.

Conventionally, various frame members for constructing the floor surface of a suspended scaffold have been provided, and in general, the frame members are adapted to various construction sites by connecting rectangular frame members of the same standard in parallel. It builds a suspended scaffold.

However, for example, when constructing a suspended scaffold for a special skeleton such as a highway, conventionally, it is necessary to assemble each pipe diagonally while making an angle so that the suspended scaffold follows a special curved skeleton. The construction work was extremely complicated.

The present invention has been made in view of the above problems, and it is extremely easy to construct a scaffolding frame member corresponding to a curved skeleton such as an expressway, as in an assembly work similar to a straight skeleton. It provides a pipe connecting mechanism used for a frame member for a suspended scaffold that enables it.

As described in claim 1, the present invention is a pipe connecting mechanism used for a frame member for a suspended scaffold that constructs a floor surface by laying a scaffolding tread plate, and hangs downward from both the top surface portion and the top surface portion. A pipe holding portion having a substantially U-shape in cross-sectional view provided with side wall portions facing each other is provided, and a pipe frame arranged between the side wall portions penetrates through a bolt through hole coaxially formed in the side wall portion. It is connected to the pipe holding portion via a bolt, and the distance between the side wall portions is set wide with respect to the outer diameter of the pipe frame so that the pipe frame can move in the bolt axis direction. It is characterized in that a gap is formed in the pipe.

According to the second aspect of the present invention, in the pipe connecting mechanism used for the frame member for suspension scaffolding for constructing the floor surface by laying the scaffolding tread, the frame member is the tip frame forming the long side portion and the tip frame. It is characterized by including a pipe frame, two side frames forming a short side portion, and a joist frame erected between the tip frame and the pipe frame, and the pipe holding portion is connected to the side frame. It is something to do.

According to the third aspect of the present invention, in the pipe connecting mechanism used for the frame member for suspension scaffolding for constructing the floor surface by laying the scaffolding tread, the frame member is the tip frame forming the long side portion and the tip frame. It is characterized by including a pipe frame, two side frames forming a short side portion, and a joist frame erected between the tip frame and the pipe frame, and the pipe holding portion is connected to the joist frame. Is what you do.

Since the present invention adopts the configuration as described in claims 1 to 3, it is possible to appropriately move the pipe frame constituting the frame member in the suspension scaffolding in the bolt axis direction, and it is complicated to correspond to the curved skeleton. It is possible to provide a pipe connecting mechanism used for a frame member for a suspended scaffold that can arrange the entire suspended scaffold in a curved shape according to the target skeleton without going through various assembly operations. is there.

It is a front view which shows the Example of the connecting mechanism used for the frame member for a suspension scaffold of this invention. It is explanatory top view which shows the Example of the connection mechanism used for the frame member for suspension scaffolding of this invention. It is a perspective view which shows the Example of the pipe holding part. It is a perspective view which shows the suspension scaffold arranged in a curve by the connecting mechanism used for the frame member for suspension scaffold of this invention.

Hereinafter, the pipe connecting mechanism used for the frame member for the suspension scaffold according to the present invention will be described in detail with reference to the drawings.

As shown in the figure, the basic configuration of the pipe connecting mechanism used for the frame member for suspension scaffolding according to the present invention is a pipe holding portion 1 covering the pipe frame P and a bolt B penetrating the pipe frame P and the pipe holding portion 1. It consists of.

As described above, the frame member for suspension scaffolding in which the pipe connecting mechanism according to the present invention is used is a scaffolding within a predetermined range according to the work site by connecting the frame members, and the floor surface is laid by laying scaffolding treads on each frame member. The basic configuration of the frame member is a tip frame K and a pipe frame P forming a long side portion, two side frames S forming a short side portion, and the tip frame K and the corresponding. It is composed of a joist frame C erected between pipe frames P.

The present invention is a pipe connecting mechanism for connecting a pipe frame and a tip frame in a frame member having the above basic configuration.

The pipe holding portion 1 has a rectangular top plate 1A and a rectangular side wall portion 1B1C that hangs downward from both sides of the top plate 1A and is extended so as to face each other. ..

Through holes 1H through which bolts B pass are bored coaxially with each other in both side wall portions 1B1C.

The pipe frame P is arranged between the side wall portions 1B1C of the pipe holding portion 1 and is connected via the through hole 1H of the side wall portion 1B1C and the bolt B penetrating the bolt hole of the pipe frame P.

In the pipe connecting mechanism according to the present invention, the distance between the side wall portions 1B1C of the pipe holding portion 1 is set to be wider than the outer diameter of the pipe frame P arranged between the side wall portions, and the pipe frame P is arranged. In this state, a gap is formed between the side wall portions 1B1C of the pipe holding portion 1 in the direction of the bolt axis, which is a characteristic configuration.

With such a configuration, the pipe frame can be appropriately moved in the bolt axis direction between the side wall portions 1B1C of the pipe holding portion 1.

For example, in the illustrated embodiment, the distance between the side wall portions 1B1C is 66 mm, the outer diameter of the pipe frame is 48.6 mm, and a gap of about 17 mm, that is, a play that allows the pipe frame to move in the axial direction is provided. However, the numerical value of the gap (play) is appropriately set according to the standard of the frame member and the like.

Therefore, in the pipe connecting mechanism according to the present invention, as shown in FIG. 2, a frame in which the pipe frame P is adjacent to one end of the frame member (a connecting mechanism connected to one side frame (S1 in FIG. 2)). The tip of the member is brought into contact with the side wall 1B on the frame direction side, and the other tip of the frame member (a connecting mechanism connected to the other side frame (S2 in FIG. 2)) is brought into contact with the other side wall 1C (the above side wall). The distance between the frame members can be appropriately adjusted by arranging the frame members so as to be in contact with the side wall portion on the opposite side of the frame member.

As a result, for example, as shown in FIG. 4, by continuously arranging the side frames on the side expanded in the arrow direction on the curved skeleton side, the frame members are arranged in a curved shape and correspond to the curved skeleton. It becomes possible.

The side frame S is erected at both ends of the tip frame K and the pipe frame P, and the joist frame C is erected in parallel with the side frame S between the tip frame K and the pipe frame P.

Therefore, in the pipe connecting mechanism according to the present invention, in the frame member, the pipe holding portion 1 is connected to the side frame S or the joist frame C, so that the pipe frame P is connected to the tip frame K, and the above-mentioned operation is performed. It is possible to achieve the effect.

The connection between the bolt B and the pipe holding portion 1 is via a known connection such as the bolt B and the nut N, but two nuts having a strong resistance to vibration in order to cope with the vibration in the suspended scaffold. It is expected to be concluded by using.

1 Pipe holding part 1B Side wall part 1C Side wall part P Pipe frame S1 Side frame S2 Side frame

Claims (3)

In a pipe connecting mechanism used for a frame member for a suspended scaffold that constructs a floor surface by laying a scaffolding tread, a substantially cross-sectional view U-shape in which a top surface portion and a side wall portion that hangs downward from both sides of the top surface portion are provided opposite to each other. A pipe frame having a shape-like pipe holding portion and arranged between the side wall portions is connected to the pipe holding portion via a bolt penetrating a bolt through hole coaxially bored in the side wall portion. The pipe connection is characterized in that the distance between the side walls is set wider than the outer diameter of the pipe frame so that the pipe frame can move in the bolt axis direction, and a gap is formed in the bolt axis direction. mechanism. In the pipe connecting mechanism used for the frame member for hanging scaffolding that constructs the floor surface by laying the scaffolding tread, the frame member consists of a tip frame and a pipe frame that form a long side portion and two frames that form a short side portion. A pipe connecting mechanism including a side frame and a joist frame erected between the tip frame and the pipe frame, wherein the pipe holding portion is connected to the side frame. In the pipe connecting mechanism used for the frame member for hanging scaffolding that constructs the floor surface by laying the scaffolding tread, the frame member consists of a tip frame and a pipe frame that form a long side portion and two frames that form a short side portion. A pipe connecting mechanism including a side frame and a joist frame erected between the tip frame and the pipe frame, wherein the pipe holding portion is connected to the joist frame.

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