JP2021046665A - Connecting fitting for temporary suspended scaffold - Google Patents

Abstract

To provide a connecting fitting which can be utilized as means for connecting a suspended scaffold temporarily installed in an inspection and maintenance work site such as a bridge in the longitudinal direction.SOLUTION: Two pipe clamps 1A and 1B are equipped with: a receiving member 2 having a pipe receiving seat 6 having a flat outer surface 6a and a bearing part 7 obliquely rising from one end of the pipe receiving seat 6; a pressing member 3 pivotally supported on a free end of the bearing part 7 so as to be freely opened/closed and having a screw shaft engaging part 13 at a tip thereof; and a fastening screw shaft 4 and a nut 5 pivotally supported on a free end of the pipe receiving seat 6 in a freely undulating manner. In a connection fitting provided with connection means to connect and integrate the receiving members 2 of both pipe clamps with each other, both the pipe clamps 1A and 1B are constituted by connecting and integrating them by connection means (for example, a connection receiving member 18) in a state in which bearing parts 7 of the receiving members 2 are arranged back to back adjacent to each other and the flat outer surfaces 6a of the pipe receiving seats 6 of the respective receiving members 2 are arranged in parallel so as to continue in a chevron shape.SELECTED DRAWING: Figure 6

Description

The present invention relates to a connecting metal fitting for connecting a suspended scaffold temporarily installed at an inspection and maintenance work site such as a bridge in the length direction.

For suspended scaffolding temporarily installed at inspection and maintenance work sites such as bridges, scaffolding boards are attached between the left and right side frame materials arranged on both the left and right sides in the length direction, and the scaffolding boards extend from the scaffolding boards to the ends in the length direction. A connecting steel pipe is erected between the left and right side frame members to be put out. When this type of suspended scaffold is temporarily installed so as to be continuous in the length direction, both suspended scaffolds whose ends are adjacent to each other use pipe clamps between the connecting steel pipes at the adjacent ends of both suspended scaffolds. The connecting suspension scaffold structure connected in this way is connected by the connecting metal fittings of the above, and the connecting steel pipes located at both ends thereof and the intermediate suspension scaffolds are adjacent to each other. The connecting steel pipes are hung from a structure such as a bridge by a hanging chain, respectively.

Therefore, as a connecting metal fitting for connecting the suspended scaffolds, it is not possible to show a patented technical document that discloses the configuration thereof, but a generally known one uses a pipe clamp. .. This pipe clamp includes a receiving member having a pipe receiving seat having a flat outer surface and a bearing portion that rises diagonally from one end of the pipe receiving seat, and a presser that is pivotally supported by the free end of the bearing portion so as to be openable and closable. A member, a screw shaft undulatingly supported on the free end of the pipe bearing, and a nut screwed into the screw shaft are provided, and a notch recess into which the screw shaft is fitted is provided at the free end of the holding member. It was made. Two of these pipe clamps are connected by a connecting means to form a connecting metal fitting that connects two suspended scaffolds whose ends are adjacent to each other.

However, a conventionally known connecting means for connecting and integrating two pipe clamps is a bolt nut that directly connects both pipe receiving seats with the flat outer surfaces of the pipe receiving seats of each pipe clamp facing each other. It consisted only of such things. That is, in this type of pipe clamp, since the flat outer surface of the pipe receiving seat serves as a mounting seat for attaching other members to the pipe clamp, the mounting seats of the two pipe clamps abut against each other. It was a common practice to connect and integrate them with bolts and nuts in the state where they were made. However, in the connecting metal fitting having such a configuration, since the operator must operate the pipe clamp from the upper side of the suspension scaffold, these pipe clamps can be attached to the places where the screw shafts and nuts of the two pipe clamps exist. The connecting bracket must be used so that it is on the steel pipe on the side of the suspended scaffold.

That is, as will be described later based on FIG. 13, the pipe receiving seats of the two pipe clamps connected back to back to each other are arranged vertically and vertically between the two steel pipes to be connected, and these 2 The holding member of each pipe clamp is arranged vertically and vertically on the outside of the steel pipe of the book, and the fastening screw shaft is arranged on the upper side of each steel pipe in a horizontal posture with the tip raised. As a result, the screw shaft engaging portion of the tip portion and the tip of the holding member protrudes upward above the level of the upper end of the peripheral surface of the two steel pipes. Therefore, if a safety measure is to be taken to cover the space between the suspended scaffolds adjacent to each other where there is no scaffolding board with another relaying auxiliary scaffolding board, the relaying auxiliary scaffolding board is covered with the scaffolding boards of the hanging scaffolding before and after the relaying auxiliary scaffolding board. It had to be configured in a shape that protruded into a larger mountain shape, which was a problem in terms of safety for workers walking on suspended scaffolding.

The present invention proposes a connection fitting for a temporary suspension scaffold that can solve the above-mentioned conventional problems, and the connection fitting for the temporary suspension scaffold according to the present invention is the same as that of the embodiment described later. In order to make the relationship easier to understand, the reference symbols used in the description of the embodiment are shown in parentheses, and the connecting steel pipes (30) are shown between the left and right side frames (27) at the ends in the length direction. Is a connecting metal fitting (18) for connecting the suspended scaffold (26) erected in the length direction, and is a pipe clamp (1A) fixed to the connecting steel pipe (30) of one of the suspended scaffolds (26). And the pipe clamps (1B) fixed to the connecting steel pipe (30) of the other suspension scaffold (26) are connected and integrated with each other, and both pipe clamps (1A, 1B) are flat outer surfaces (6a). A receiving member (2) having a pipe receiving seat (6) having a pipe receiving seat (6) and a bearing portion (7) that rises diagonally from one end of the pipe receiving seat (6), and a free end of the bearing portion (7) that can be opened and closed freely. A holding member (3) pivotally supported by the pipe, a fastening screw shaft (4) undulatingly supported by the free end of the pipe receiving seat (6), and a nut screwed into the screw shaft (4). 5) is provided, and at the free end of the holding member (3), a screw shaft engaging portion (13) having a notch recess (14) into which the fastening screw shaft (4) is fitted is provided, and both pipes are provided. In a connecting metal fitting provided with a connecting means for connecting and integrating the receiving members (2) of the clamps (1A, 1B) with each other.
In both pipe clamps (1A, 1B), the bearing portions (7) of the respective receiving members (2) are adjacent to each other back to back, and the flat outer surface of the respective receiving members (2) in the pipe receiving seat (6). In a state where the side surfaces (6a) are arranged in parallel so as to be continuous in a mountain shape, the receiving members (2) of both pipe clamps (1A, 1B) are connected and integrated with each other by the connecting means.

In the above-mentioned connecting metal fitting of the present invention, the bearing portions of the receiving members of both pipe clamps that are adjacent to each other back to back are arranged so as to enter upward from the lower side between the steel pipes of both hanging scaffolds to be connected which are parallel to each other. With the steel pipes fitted on the pipe receiving seats of the receiving members of the pipe clamps, the holding members of both pipe clamps are placed on the steel pipes, and the screw shafts for fastening the pipe clamps and the nuts are retracted. After being retracted to the position and lifted upward to fit into the notch recess at the tip of each holding member, the nut is tightened to sandwich and fix each steel pipe between the holding member and the pipe receiving seat. As a result, the steel pipes of both suspension scaffolds that are parallel to each other can be connected and integrated with each other.

Therefore, according to the above-described configuration of the present invention, the bearing members of both pipe clamps are connected to each other in a state where the bearing portions that rise diagonally from one end of the pipe receiving seat of each pipe clamp receiving member are adjacent to each other back to back. Since they are integrated, if the bearing portions of both pipe clamps that are adjacent to each other back to back are arranged so as to enter between the two steel pipes that are connected to each other from the lower side upward, the bearing portions are originally diagonally upward. Since the bearing portion inclined to the above side is in a substantially vertical posture, the pipe clamps are in a posture in which they rotate in opposite directions in the direction in which the bearing portion moves upward. Therefore, the upper end of the bearing portion (the position of the shaft support of the holding member) becomes higher, and the fastening screw shaft in the fastening posture rotates downward around the steel pipe to loosen the standing angle. Therefore, with respect to the upper end level of the peripheral surface of the two parallel steel pipes, only the holding member of both pipe clamps or, depending on the length of the fastening screw shaft, upward with the upper end of the fastening screw shaft in the fastening posture. It will be in a protruding state.

With respect to the above-described configuration of the present invention, both pipe clamps fix the pipe receiving seats to each other, for example, on a horizontally oriented connecting member in a normal posture in which the pipe receiving seats of the receiving members are substantially horizontal. A configuration in which both pipe clamps are connected and integrated, or a configuration in which both pipe clamps are connected and integrated with each other in a state where the pipe receiving seats of the receiving members are adjacent to each other back to back can be considered. In the configuration of, the upper end of the fastening screw shaft in the fastening posture, the screw shaft engaging portion at the tip of the holding member that engages with the fastening screw shaft, the nut, and the like protrude upward from the upper end level of the peripheral surface of the steel pipe. With respect to this protrusion height, the protrusion height in the case of the configuration of the present invention in which only the holding member of the pipe clamp substantially protrudes upward from the upper end level of the peripheral surface of the steel pipe as described above is , By far lower. Therefore, when the steel pipes erected at the ends of the two suspension scaffolds are connected by both pipe clamps, the height of the portion protruding upward from the steel pipes is greatly reduced, so that the steel pipes are connected to each other. Even when a relay auxiliary scaffold board is laid across both suspension scaffolds in order to close the space generated between the suspension scaffolds, the maximum height of the relay auxiliary scaffold board can be greatly lowered. It is possible to improve the safety for workers walking on the suspended scaffolding.

When the present invention is carried out by using an off-the-shelf pipe clamp as it is, the bearing portion has a tapered shape in relation to supporting the holding member, and the back surface is not a flat straight line. Since it is usually bent, it is easy to directly weld the bearings of the receiving members of the two pipe clamps adjacent to each other back to back, or to join and integrate them with appropriate fasteners such as bolts and rivets. Not so, it is difficult to obtain sufficient connection strength. Therefore, although there may be such an implementation method, preferably, as the connecting means, a flat outer surface (6a) in the pipe receiving seat (6) of the receiving member (2) of both pipe clamps (1A, 1B) is used. ), It is preferable to include a connecting receiving member in which two supporting portions facing each other are continuously provided in a mountain shape, and a fixing means for fixing each supporting portion to the pipe receiving seats of both pipe clamps. According to this configuration, since the flat outer surface of the pipe receiving seats of both pipe clamps and the mountain-shaped bottom plate portion facing the flat outer surface are provided, even when welding, bolts, rivets, etc. are used as the fixing means. , Can be easily connected and integrated with sufficient strength.

When the above-mentioned connecting receiving member is used, the connecting receiving member is a mountain-shaped bottom plate portion facing the flat outer surface of the pipe receiving seat of both pipe clamps, and a pipe rising from both left and right sides of the bottom plate portion. It is preferable to have a cross-sectional groove-shaped structure including side plate portions that sandwich the receiving seat from both the left and right sides. According to this configuration, not only the strength of the connecting receiving member itself can be sufficiently increased by the cross-sectional groove structure, but also the pipe receiving seats of the two pipe clamps can be used as the connecting receiving member having the cross-sectional groove structure. It is easy to determine the positions and postures of the two pipe clamps just by fitting them, and it is easier to carry out. Further, the fixing means penetrates one through screw hole in each support portion formed in the bottom plate portion of both support portions of the connection receiving member and the pipe receiving seat of each pipe clamp from the inside to the outside. When each support portion is composed of one bolt screwed and fastened to the through screw hole, it can be carried out easily and inexpensively by using a total of two bolts.

FIG. 1 is a partially longitudinal front view of a general-purpose pipe clamp to be used. FIG. 2 is a plan view of the pipe clamp. FIG. 3 is a bottom view of the pipe clamp. FIG. 4 is a right side view of the pipe clamp. FIG. 5 is a left side view of the pipe clamp. FIG. 6 is a partially longitudinal front view of a connecting metal fitting according to an embodiment of the present invention configured by using the pipe clamp. FIG. 7 is a cross-sectional view taken along the line AA of FIG. FIG. 8 is a perspective view showing a connecting receiving member used as the connecting means. FIG. 9 is a partially cutaway side view illustrating a place where the connecting metal fitting of the present invention is used. FIG. 10 is a partially omitted front view of the same. FIG. 11 is a partially cutaway plan view illustrating a state in which the connecting metal fitting of the present invention is actually used. FIG. 12 is an enlarged cross-sectional view taken along the line BB of FIG. FIG. 13 is a cross-sectional view corresponding to the enlarged cross-sectional view taken along the line BB when a conventional connecting metal fitting is used.

First, a general-purpose pipe clamp to be used will be described with reference to FIGS. 1 to 5, and the pipe clamp 1 is composed of a receiving member 2, a holding member 3, a fastening screw shaft 4, and a nut 5. The receiving member 2 includes a pipe receiving seat 6 having a flat outer surface 6a, and a bearing portion 7 that rises obliquely from one end of the pipe receiving seat 6. The pipe receiving seat 6 and the bearing portion 7 are provided with a bottom plate portion 8 that is continuous between the two, and left and right side plate portions 9 that are bent inward at right angles from the left and right side of the bottom plate portion 8 and are provided. The inner edge 9a of the left and right side plate portions 9 is formed in an arc shape along the peripheral surface of the steel pipe P to be clamped.

The pressing member 3 has one end fitted between the left and right side plate portions 9 of the free end of the bearing portion 7, and is pivotally supported by a support shaft 10 crossing between the left and right side plate portions 9 so as to be openable and closable. It has a cross-sectional groove-shaped structure with an open lower side, including an outer top plate portion 11 and left and right side plate portions 12 bent inward at right angles from the left and right side surfaces of the top plate portion 11. Therefore, the free end portion is a screw shaft engaging portion 13 that bends outward and projects in a right angle. The screw shaft engaging portion 13 is provided with a notch recess 14 formed in the top plate portion 11 from the tip thereof to form a bifurcated shape, and the top plate of the bifurcated screw shaft engaging portion 13 has a bifurcated shape. A lower nut receiving surface 15 is formed on the portion 11. The inner edge 12a of the region excluding the screw shaft engaging portion 13 of the left and right side plate portions 12 of the pressing member 3 is formed in an arc shape along the peripheral surface of the steel pipe P to be clamped. Further, the region of the pressing member 3 excluding the screw shaft engaging portion 13 is also formed in an arc shape that bulges outward like the inner edge 12a.

On the side of the pipe receiving seat 6 of the receiving member 2 opposite to the side where the bearing portion 7 is continuously provided, a bearing protrusion 2a having a narrow width is formed, and the fastening screw shaft 4 is one end thereof. The portion is fitted to the bearing protrusion 2a of the pipe receiving seat 6, and is swingably supported by a support shaft 16 crossing between the left and right side plate portions 9 forming the bearing protrusion 2a. There is. The nut 5 is screwed into the fastening screw shaft 4, and the retaining portion 4a of the nut 5 is integrally formed with the tip of the fastening screw shaft 4. Thus, the fastening screw shaft 4 is closed with the steel pipe P sandwiched between the receiving member 2 and the receiving member 2 by closing the nut 5 around the support shaft 16 in a state where the nut 5 is retracted to the retracting limit position. It can be fitted into the notch recess 14 of the screw shaft engaging portion 13 of a certain holding member 3, and in this state, the nut 5 at the retracted limit position is tightened to the nut receiving surface 15 of the screw shaft engaging portion 13. By pressure contacting, the pressing member 3 is closed around the support shaft 10 with respect to the receiving member 2, and the steel pipe P is sandwiched between the inner edge 9a of the receiving member 2 and the inner edge 12a of the pressing member 3. Can be fixed.

An embodiment of the connecting metal fittings configured by using the pipe clamp 1 configured and can be used as described above will be described with reference to FIGS. 6 to 8, and two having the same structure as the pipe clamp 1 will be described. The connecting metal fitting 18 is composed of the pipe clamps 1A and 1B, the connecting receiving member 17 as the connecting means for both the pipe clamps 1A and 1B, and the fastening bolts 19a and 19b. That is, as shown in FIG. 6, the two pipe clamps 1A and 1B are arranged in the opposite directions so that the bearing portions 7 of the respective receiving members 2 are adjacent to each other back to back, and the two pipe clamps 1A and 1B are connected to the connecting receiving member 17. The fastening bolts 19a and 19b of the above are connected and integrated.

The connecting receiving member 17 has a flat outer surface 6a of the bottom plate portion 8 of each of the pipe receiving seats 6 of the two pipe clamps 1A and 1B in which the bearing portions 7 are arranged in opposite directions so as to be adjacent to each other back to back as described above. A mountain-shaped bottom plate portion 21 having mountain-shaped continuous support plate portions 20a and 20b that abut against the mountain-shaped bottom plate portion 21 and a pipe receiving seat 6 that is bent and connected at right angles from both left and right sides of the mountain-shaped bottom plate portion 21. It is composed of left and right side plate portions 22 sandwiching the above, and through screw holes 23 penetrating at right angles are provided at the center positions of both support plate portions 20a and 20b. On the other hand, in the center of the bottom plate portion 8 of the pipe receiving seats 6 of both pipe clamps 1A and 1B, a through hole 24 is provided concentrically with the through screw hole 23, and the through hole 24 is inside the pipe receiving seat 6. By inserting the fastening bolts 19a and 19b from the pipes and screwing them into the through screw holes 23 on the connecting receiving member 17 side, both pipe clamps 1A and 1B are connected to the connecting receiving member 17 and the two fastening bolts 19a and 19b. It is connected and integrated via. As shown in FIG. 6, if both pipe clamps 1A and 1B in a state of sandwiching the steel pipe P are horizontally arranged in parallel with each other, the connecting metal fitting 18 configured in this way is the upper side of the steel pipe P. Has an arc-shaped portion of the holding member 3, and is slightly fastened to the arc-shaped portion of the holding member 3 of both pipe clamps 1A and 1B above the peripheral upper end level L of both steel pipes P. The tip of the screw shaft 4 is in a protruding state.

The through screw hole 23 on the connecting receiving member 17 side is formed by a through hole processing in which a tubular wall portion is formed outward from the support plate portions 20a and 20b and a female screw groove processing on the inside of the through hole. After the two pipe clamps 1A and 1B are attached to the connecting receiving member 17 by the fastening bolts 19a and 19b, the fastening bolts 19a and 19b protruding from the through screw holes 29 are used to prevent the fastening bolts 19a and 19b from loosening. The tip of 19b is crimped. Further, the heads of the fastening bolts 19a and 19b are fitted between the left and right side plate portions 9 of the pipe receiving seats 6 of the pipe clamps 1A and 1B, and do not protrude inward from the inner edge 9a.

Explaining how to use the connecting metal fitting 18 configured as described above based on FIGS. 9 to 12, as shown in FIGS. 9 and 10, the lower side of the bridge 25 is used for maintenance and inspection work of the bridge and the like. A hanging scaffold 26 for work is erected at a constant height. The suspended scaffold 26 is formed by laying a scaffold plate 28 between the left and right side frames 27 along the length direction, except for a fixed length region at both ends of the suspended scaffold 26. In the area where the scaffolding plates 28 at both ends are not laid, the steel pipe 30 (shown in the structural explanation of the connecting metal fitting 18) is shown between the left and right side frames 27 for use when the hanging scaffolding 26 is suspended by the hanging chain 29. (Corresponding to steel pipe P) is erected. Each of the suspended scaffolds 26 has steel pipes 30 at both ends suspended from the beam member 25a of the bridge 25 by a hanging chain 29. When the suspended scaffolds 26 are erected so as to be continuous in the length direction, FIG. 11 and FIG. As shown in FIG. 12, the steel pipes 30 erected at the ends of the suspended scaffolds 26 adjacent to each other in the length direction are connected to each other by the connecting metal fittings 18 of the present invention at two locations near both ends of the steel pipes 30. Can be connected to each other.

When the hanging scaffolds 26 adjacent to each other in the length direction are connected to each other by the connecting metal fitting 18, the connecting metal fitting 18 is handled from the scaffolding plate 28 of either the front or rear hanging scaffolding 26. At this time, the connecting receiving member 17 The connecting metal fitting 18 is set so that is oriented toward the lower side of the two parallel steel pipes 30 and the bearing portions 7 adjacent to each other of the pipe clamps 1A and 1B are fitted upward between the two steel pipes 30. , The fastening screw shaft 4 is engaged with the screw shaft engaging portion 13 of the pressing member 3 covered on each steel pipe 30, and the nut 5 is tightened. The nut 5 to be the target of this work is screwed to the outside of each of the pipe clamps 1A and 1B near the upper end of the fastening screw shaft 4 in an obliquely upward posture, and the nut 5 is screwed onto the fastening screw shaft 4. This work can be easily performed from the upper side of the connecting metal fitting 18 because the screw is screwed diagonally downward.

Moreover, as described with reference to FIG. 6, it is substantially only the thickness of the pressing member 3 that covers the upper side of the steel pipe 30 that protrudes upward from the peripheral upper end level L of both steel pipes 30. As shown in FIGS. 11 and 12, the region where the scaffolding plates 28 of the front and rear suspension scaffolds 26 adjacent in the length direction do not exist, that is, the end region of the both suspension scaffolds 26 where the steel pipe 30 and the connecting metal fitting 18 exist. Is closed by a relay auxiliary scaffolding plate 31 on which both front and rear ends are placed on the scaffolding plates 28 located in the front and rear of this region, the relay auxiliary scaffolding plate 31 has a slightly higher space between the front and rear ends. The relay auxiliary scaffolding plate 31 can be laid without contacting the connecting metal fitting 18 simply by forming the scaffolding plate 31 in this way.

At the ends of the front and rear suspension scaffolds 26 provided with the steel pipes 30 connected to each other by the connecting metal fittings 18, only the steel pipes 30 of the suspension scaffold 26 on one side are suspended from the bridge 25 by the suspension chain 29. It may be hung on the material 25a. Since the hanging chain 29 penetrates the relay auxiliary scaffolding plate 31 in the vertical direction, the hanging chain 29 penetrates through the suspension chain 29 as shown in FIG. 11 at that location. A hole 32 is provided. Further, although not shown, a locking means for positioning the relay auxiliary scaffold plate 31 so as not to move horizontally with respect to the suspended scaffold 26 can also be used. Further, as shown in FIG. 11, when the suspended scaffolding 26 is suspended in two rows adjacent to each other in the left-right lateral direction, the relay auxiliary scaffolding plate 31 can cover the entire width of the two rows of suspended scaffolding 26. A horizontally long one can be used.

FIG. 13 shows a state in which the conventional connecting metal fitting 33 is used. As described above, the conventional connecting metal fitting 33 has two pipe clamps 1A and 1B in a state where the pipe receiving seats 6 in the receiving member 2 are brought into contact with each other in a back-to-back state, and the pipe receiving seats 6 are brought into contact with each other. It is connected and integrated with bolts and nuts. When this conventional connecting metal fitting 33 is used, the fastening screw shaft 4 and the nut 5 to be operated are oriented so as to be located on the upper side of the steel pipe 30, and both pipe clamps 1A and 1B are adjacent to each other between the steel pipes 30. It is used in a state where the receiving seat 6 is inserted. In this case, the tip portion of the fastening screw shaft 4 and the screw shaft engaging portion at the tip of the holding member 3 are above the peripheral surface upper end level L of both steel pipes 30. Since the 13 and the nut 5 and the like are greatly projected, in order to avoid these, it is necessary to form the relay auxiliary scaffold plate 34 so that the intermediate region is much higher than both ends. According to the present invention, the relay auxiliary scaffold plate 34 can be replaced with the relay auxiliary scaffold plate 31 shown in FIG.

The temporary suspension scaffold connecting metal fitting of the present invention can be used as a connecting metal fitting for connecting the suspended scaffold temporarily installed at an inspection and maintenance work site such as a bridge in the length direction.

1,1A, 1B Pipe clamp 2 Receiving member 2a Shaft protrusion 3 Holding member 4 Fastening screw shaft 4a Nut retaining part 5 Nut 6 Pipe receiving seat 6a Flat outer surface 7 Receiving part 8 Bottom plate part 9 Left and right side plate parts 9a, 12a Inner edge 10, 16 Support shaft 11 Top plate part 12 Left and right side plate parts 13 Screw shaft engaging part 14 Notch recess 15 Nut receiving surface 17 Connecting receiving member 18 Connecting metal fittings 19a, 19b Fastening bolt 20a, 20b Support plate part 21 Mountain-shaped bottom plate 22 Left and right side plate part 23 Through screw hole 24 Through hole 25 Bridge 25a Beam material 26 Suspended scaffolding 27 Left and right side frame 28 Scaffolding plate 29 Suspended chain 30, P steel pipe 31, 34 Relay auxiliary scaffolding plate 32 Chain through hole for hanging 33 Conventional connecting bracket L Two steel pipes in parallel at the upper end level of the peripheral surface

Claims (4)

A connecting metal fitting for connecting a hanging scaffold in which a connecting steel pipe is erected between the left and right side frames at the end in the length direction in the length direction, and a pipe clamp for fixing one of the hanging scaffolds to the connecting steel pipe. And the pipe clamp fixed to the connecting steel pipe of the other suspension scaffold are connected and integrated with each other, and both pipe clamps rise diagonally from one end of the pipe receiving seat having a flat outer surface and the pipe receiving seat. A receiving member provided with a bearing portion, a holding member rotatably supported by the free end of the bearing portion, and a fastening screw shaft and the screw undulatingly supported by the free end of the pipe receiving seat. A screw shaft engaging portion provided with a nut to be screwed into the shaft and a notch recess into which the fastening screw shaft is fitted is provided at the free end of the holding member, and the receiving members of both pipe clamps are connected to each other. In the connecting metal fitting provided with the connecting means to be integrated,
In both pipe clamps, the bearing portions of the respective receiving members are adjacent to each other back to back, and the flat outer surfaces of the pipe receiving seats of the respective receiving members are arranged in parallel so as to be continuous in a mountain shape. A connecting metal fitting for a temporary suspension scaffold, which is formed by connecting and integrating the receiving members of the clamps with each other by the connecting means. The connecting means includes a connecting receiving member in which two supporting portions facing the flat outer surface of the receiving member of both pipe clamps are continuously connected in a mountain shape, and each supporting portion is connected to both pipe clamps. The connecting metal fitting for the temporary suspension scaffold according to claim 1, which is composed of a fixing means for fixing to the pipe receiving seat of the above. The connecting receiving member includes a mountain-shaped bottom plate portion that faces the flat outer surface of the pipe receiving seat of the pipe clamp, and side plate portions that stand up from the left and right sides of the bottom plate portion and sandwich the pipe receiving seat from both the left and right sides. The connecting metal fitting for a temporary suspension scaffold according to claim 2, which has a groove-shaped cross-sectional structure. The fixing means penetrates the bottom plate portions of both support portions of the connecting receiving member from the inside to the outside through one through screw hole in each support portion and the pipe receiving seat of each pipe clamp. The connecting metal fitting for a temporary suspension scaffold according to claim 3, wherein each support portion is screwed and fastened to a through screw hole and is composed of one bolt.

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