JPH08128191A - Stopper construction of suspension device, etc., of scaffolding - Google Patents

Abstract

PURPOSE: To make it possible to safely mount suspension devices connected to suspension chains by providing screw holes in the upper surfaces of main beams, covering fixed rings having through-holes having the screw holes from above, and welding the surfaces of the main beams to the fixed rings. CONSTITUTION: An appropriate number of suspension chains 5 and 5 such as chains, etc., fixing the basic ends of them with eyebolts, etc., are suspended to the lower surface of a main girder of a bridge B in an expressway. Then, the eyebolts 29 and 29 provided to the front ends of the suspension chains 5 are screwed in the screw holes of stopper devices 8 and 8 provided to the upper surfaces of main beams 1 and 1 at specific intervals, and a pair of main beams are separated by length of a horizontal beam 2 and are suspended. Then, fixed rings having through-holes for positioning the screw holes are covered from above, and the surfaces of the main beams 1 are welded to the fixed rings. By the constitution, the suspension devices, etc., connected to the suspension chains 5 can be safely mounted with sufficient strength.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suspending tool or the like for connecting a suspending strip to a lower surface of a main girder of a bridge such as a highway, for example, on a scaffolding to be installed for repair, painting or the like. The present invention relates to a fastening structure for suspending scaffolding.

[0002]

2. Description of the Related Art As a conventional scaffold, a pipe, which is a main beam with a chain, is arranged in parallel at a distance from the bottom surface of a main girder of a bridge and is hung in order in the longitudinal direction. After forming a frame of the entire scaffold by crossing the pipes that will become horizontal beams at predetermined intervals in the horizontal direction and fixing them with connecting tools such as clamps, place the scaffold plates on the horizontal beams using the pipes in order in the horizontal direction. There is something that assembles the whole by going down.
When suspending a main beam using a pipe with a chain, both ends of the chain are attached to the lower surface of the main girder of the bridge in a loop shape by clamps, and the main beam using a pipe is supported by the loop chain.

[0003]

However, in the conventional structure for supporting the main beam of the scaffold, since the main beam is only supported by the chain without being fixed, the structure for suspending the entire scaffold is used. However, there was a problem that it was very dangerous.

In view of the above, the present invention provides a scaffolding which is capable of safely attaching a suspending tool or the like connected to a suspending strip, is excellent in strength, can be used for multiple purposes, and can replace only a damaged portion. The purpose of the invention is to provide a stopping structure for hanging equipment and the like.

[0005]

In order to achieve the above object, a threaded hole is provided on the upper surface of a main beam, and a fixing ring having a through hole for positioning the threaded hole is covered from above to fix the surface of the main beam and the fixing ring. It is characterized by welding.

Further, more specifically, a fixing nut having a flange at the upper end and having a screw hole in the axial direction is inserted into an opening formed in the upper surface of the main beam to lock the flange. After welding the collar portion of the fixing nut to the main beam, the fixing ring having a through hole in the substantially center is covered with the through hole and the screw hole of the fixing nut from above and welded to the main beam. It is preferable to use the featured one.

In addition, a support plate on which a support nut is erected is positioned inside a hollow main beam, the support nut is projected from an opening on the upper surface of the main beam, and a mounting bolt is penetrated from the upper surface of the main beam to support it. It is characterized by being screwed and fixed to the plate.

In addition, through holes for vertically penetrating the screw shaft portion of the eyebolt are formed in the upper surface and the lower surface of the main beam, and a support nut for screwing the screw shaft of the eyebolt is welded to the lower surface of the main beam. It may be characterized by.

[0009]

As described above, according to the first aspect of the present invention, the scaffold suspending structure for a scaffold, etc., is provided with respect to the screw hole on the upper surface of the main beam.
It has a structure in which a fixing ring is covered from above to reinforce, and a screw shaft such as an eyebolt can be screwed into this screw hole to attach a suspending tool, etc. Using this suspending tool, the entire scaffold can be chained. It can be hung with a hanging strip such as. Further, by providing a screw hole reinforced by a fixing ring at an appropriate position on the main beam, a clamp for gripping a pipe or the like can be attached, so that it can be used for various purposes.

According to a second aspect of the present invention, there is provided a fixing structure for a scaffold suspender or the like, wherein a fixing nut having a flange at its upper end and having a screw hole in the axial direction is provided at the opening formed on the upper surface of the main beam. After inserting and locking the collar and welding the collar of the fixing nut to the main beam,
The fixing ring having a through hole in the substantially center is a structure in which the through hole and the screw hole of the fixing nut are aligned and covered from above and welded to the main beam. Similarly, a fixing nut having a reinforcing effect is provided. A hanging tool such as an eyebolt can be attached using the screw hole.

According to the third aspect of the present invention, there is provided a support structure having a support nut, which is provided upright, inserted into the hollow main beam from the end of the main beam, and is positioned on the upper surface of the main beam. A screw hole can be provided in the upper surface of the main beam by projecting the support nut from the opening and penetrating the mounting bolt from the upper surface of the main beam while being supported by a jig or the like so as to be screwed and fixed to the support plate.

According to a fourth aspect of the present invention, there is provided a suspension structure for a scaffold suspender or the like, wherein the screw shaft portion of the eyebolt is inserted into the through holes of the upper and lower surfaces of the main beam, and the screw shaft of the eyebolt is attached to the lower surface of the main beam. The eyebolt can be attached by screwing the support nut provided on the.

[0013]

The details of the present invention will be described with reference to the embodiments shown in the drawings. FIG. 1 is a vertical cross-sectional view showing a use state of a construction prefabricated scaffold, FIGS. 2 to 4 are plan views showing an assembly procedure of the construction prefabricated scaffold, and FIG. 5 is an assembly of the construction prefabricated scaffold. It is a perspective view showing a state. Prefabricated scaffolding A for construction
For example, it is attached to the lower surface of the main girder of a bridge B such as an expressway or for repair of plant equipment, work such as painting, and basically, as shown in FIG. 1 and FIG. Main scaffold 1, 1, cross beam 2, panel member 3, unit scaffold 4
And the unit scaffold 4 is assembled on the main girder B of the bridge and suspended by a hanging strip 5 such as a chain, and the unit scaffolds 4 are sequentially connected.

As shown in FIGS. 1 and 2, the main beam 1 is provided on a side surface of a beam member 6 using a long rectangular pipe at predetermined intervals.
In order to support the horizontal beam 2 using a pipe, a receiving member 7 having a U-shaped cross section is welded, and stopping means 8 are provided on the upper surface of the beam member 6 at the same position as the receiving member 7 at predetermined intervals. is there.

The cross beam 2 is an ordinary pipe, which is designed for reuse of a pipe used in a conventional scaffold, but various hollow or solid rods such as a square pipe can be used. Is.

The receiving member 7 is provided with a restricting member 9 for restricting the movement of the lateral beam 2 in the axial direction. The restricting member 9 shown in the drawing is pinned from below to the bottom surface 7a of the receiving member as shown in FIG. Are welded together to erect the fitting protrusion 10 that is a convex portion, and
A support hole 11 which is a recess is formed at the end of the. The receiving member 7 may be a gutter member having a U-shaped cross section, or may be a simple plate member.

Further, as shown in FIG. 6, the main beam 1 and the connecting means 12 for connecting the main beam 1 in the longitudinal direction are provided with a connecting short pipe 13, a connecting bolt 14 and a fixing nut 15, a level adjusting bolt 16 and welding. It is composed of nuts 17 and.

Further, in order to regulate the vertical movement of the lateral beam 2 supported by the receiving member 7, the locking band is utilized by using the locking projections 18 projecting outward from both side surfaces of the receiving member 7. Is wound.

As shown in FIGS. 6 and 7, the connecting short pipe 13 has such a size that it is located over the adjacent main beams 1 and 1 in a state where the open ends of the main beams 1 are butted against each other. , The upper surface 19a of the square pipe 19 is opened at the center in the longitudinal direction, and the lower surface 19b
Insertion holes 20 for inserting the connecting bolts 14 are formed at both ends of the.

As shown in FIGS. 6 and 7, the connecting means 12 allows the open ends of the main beam 1 to face each other and the connecting short pipe 13 to extend over the tip portions of the two main beams 1 and 1. , And the upper hole 21a and the lower hole 21b are formed on the upper surface and the lower surface of the main beam 1 in accordance with the position of the insertion hole 20 of the connecting short pipe 13, and the screw shaft of the connecting bolt 14 is connected to the upper hole 21a. The fixing nut 15 is inserted into the lower hole 21b, and is fixed by screwing the fixing nut 15 onto the protruding tip of the screw shaft. Further, a hole is formed in the upper surface of the tip of the main beam 1 and the welding nut 17 is welded. The level adjusting bolt 16 is screwed to the 17 to position the screw shaft inside, and the tip of the screw shaft is pressed against the lower surface 19b of the connecting short pipe 13 by a screwing force to connect the short connecting pipe.
It is possible to adjust the level by preventing rattling of 13.

The connecting means 12 can have a large pressing surface by fixing the pressing plate 22 to the tip of the level adjusting bolt 16 as shown by the imaginary line in FIG. Can be done more effectively. Alternatively, the fixing nut 15 may be welded to the main beam 1, or instead of using the fixing nut 15 or the welding nut 17, the main beam 1 may be directly provided with a screw hole.

Further, in the above-mentioned connecting means 12, the connecting bolt 14 is vertically fixed to the main beam 1 to be fixed, but it may be fixed to the main beam 1 by being screwed to the side surface of the main beam 1. Although the level adjusting bolt 16 is also inserted from the upper surface of the main beam 1 to press the lower surface 19b of the connecting short tube 13, it is inserted from the side surface of the main beam 1 to press the side surface of the connecting short tube 13. It may be one. Further, if it is added, the above-mentioned connecting means 12
The main beam 1, the horizontal beam 2, and the panel member 3 are used to connect the main beam 1 and the main beam 1 of the unit scaffold 4 of the assembly type. However, there is no particular limitation and the block is fixed. It is also possible to connect the main beams of the converted unit scaffolds to each other in the longitudinal direction.

By using the connecting means 12 as described above, the end portion of the main beam 1 hung by the hanging strip 5 and the end portion of the main beam 1 face each other, and the connecting short pipe 13 is placed so as to be located between them. Insert and
The connecting bolt 14 is inserted into the main beam 1 from the upper side to the lower side so that the tip end of the screw shaft is projected and fixed by the fixing nut 15, and the level adjusting bolt 16 is rotated by operating from above to rotate the screw shaft. Since the tip end can be connected to the lower surface 19b of the connecting short pipe 13 by screwing force to adjust the level, the main beam 1 and the main beam 1 can be easily connected in the length direction during assembling the scaffold. be able to. Moreover, the tip end of the screw shaft of the level adjusting bolt 16 is pressed against the lower surface 19b of the connecting short pipe 13 by a screwing force to prevent rattling of the connecting short pipe 13 and level adjustment can be performed. Furthermore, by connecting with the connecting bolt 14 and fastening the level adjusting bolt 16, even an amateur can easily and accurately connect the connecting bolt 14 and the level adjusting bolt 16 together. Since it will be operated from above, the operation becomes easier.

Next, the stopping means 8 which is the point of the present invention
A description will be given of a stopping structure for a scaffold suspender or the like that can be achieved by using. The stopping means 8 includes a support nut 23 and a fixing ring 24.
Specifically, as shown in FIGS. 6 and 9, a support nut 23 having a flange 25 at the upper end and a screw hole 26 in the axial direction is drilled on the upper surface of the main beam 1. After inserting the collar portion 25 into the locking hole 27 provided and locking the collar portion 25 and welding the collar portion 25 of the support nut 23 to the surface of the main beam 1, bend it so as to project upward as shown in FIG. A fixing ring 24 having a through hole 28 substantially in the center of a circular plate is welded to the surface of the main beam 1 with the through hole 28 and the screw hole 26 of the support nut 23 aligned and covered from above. is there.

The stopping means 8 is not limited to the above-mentioned structure, and for example, the main beam 1 is directly provided with a screw hole, or the main beam 1 is provided.
A support plate having a screw hole may be welded to the inner surface to form the screw hole, and then the fixing ring 24 may be covered over the screw hole, and the surface of the main beam 1 and the fixing ring 24 may be welded.

As described above, according to the stopping means 8, the tip of the support nut 23 is inserted into the locking hole 27 of the main beam 1 to lock the flange 25, and the flange 25 is welded to the surface of the main beam 1. After, the fixing ring 24
Since the end portion of is welded to the surface of the main beam 1, a double-welded structure provides excellent strength.
An eyebolt can be screwed into the screw hole 26 and the whole can be suspended by the suspending strip 5, so that the structure can sufficiently withstand the weight of the scaffold.

As shown in FIGS. 17 and 18, the stopping means 8 of another embodiment has a reinforcing ring 41 having a through hole 40 formed in the upper and lower surfaces of the main beam 1 and having a hole substantially in the center thereof. Is reinforced by being welded all around by covering the through hole 40, and the support nut 23 is spot-welded to the reinforcing ring 41 located on the lower surface of the main beam 1. Then, when used, as shown in FIG. 17, the tip of the eyebolt 29 having a long screw shaft is inserted from the hole of the reinforcing ring 41 on the upper surface of the main beam 1 and screwed into the support nut 23. The entire main beam 1 can be suspended by mounting and suspending strips 5. By doing so, compared to the case where the support nut 23 is simply welded to the upper surface of the main beam 1, the support nut is
Since the support beam 23 is supported from the lower surface of the main beam 1 and no force is applied in the direction in which the support nut 23 is peeled off, a structure excellent in strength can be obtained. Further, with the above-described structure, the strength becomes excellent, so that the support nut 23 can be fixed to the reinforcing ring 41 by simply spot welding, and as a result, screwing with the eyebolt 29 or the like. This makes it possible to replace the damaged support nut 23.

Further, as shown in FIGS. 19 and 20, the stopping means 8 of another embodiment has a through hole formed in the upper surface of the support plate 42 and a collar portion 25 provided at the lower end thereof in the axial direction. Weld the support nut 23 with the screw holes, and fix the screw holes on both sides of the support nut 23.
43 is used, and a locking hole 27 is formed on the upper surface of the main beam 1 to cover and weld a fixing ring 24, and a screw hole 44 or a screw hole 44 is formed on both sides of the fixing ring 24. A through hole is provided and fixed with a mounting bolt 45.

That is, the support plate 42 in which the support nut 23 is erected.
20 from the open end of the main beam 1 and using a jig etc.
As shown in, the support nut 23 of the support plate 42
The fixing ring 24 is inserted from the screw hole 44 or the through hole on the upper surface of the main beam 1 so as to be positioned inside, and the fixing ring 24 is screwed into the fixing screw hole 43 to be fastened to the main beam 1 as shown in FIG. The support nut 23 can be attached to it. And the support nut 23
When replacing the, the support plate 42 on which the support nut 23 is erected can be removed by rotating the mounting bolt 45 in the opposite direction, and the support plate 42 on which the new support nut 23 is erected can be similarly attached. it can. By using such a structure, it is effective, for example, when the main beam 1 is subjected to a plating treatment such as hot dip galvanizing and used. That is, FIG.
When the main beam 1 shown in Fig. 1 is used, the entire main beam 1 including the support nut 23 and the like is subjected to hot dip galvanization, and when the eyebolt 29 is repeatedly attached and detached, the support nut is The main beam 1 cannot be used as a whole due to defective plating of the support nut 23 due to peeling of the plating in the screw hole 26 of the support nut 23. Since the installed support plate 42 can be easily replaced by operating the mounting bolt 45, the main beam 1 can be used for a long period of time.

Next, a procedure for assembling the work-fabricated scaffold A will be described. First, on the lower surface of the main girder of a bridge B such as a highway, an appropriate number of hanging strips 5 such as chains whose base ends are fixed by eye bolts are hung down, and eyebolts 29 provided at the tips of the hanging strips 5 are By screwing into the screw holes 26 of the stopper means 8 provided at a predetermined interval on the upper surface of the beam 1, a pair of symmetrical main beams 1 as shown in FIG. By inserting the fitting protrusion 10 of the regulating member 9 standing on the receiving member 7 into the support hole 11 of the horizontal beam 2, the horizontal beam 2 is supported by the receiving member 7 at predetermined intervals as shown in FIG. The frame can be assembled by using the frame, and as shown in FIG. 4, the unit scaffold 4 can be assembled by placing the panel member 3 with the end of the panel member 3 locked to the end of the main beam 1.

Further, when the main beam 1 is extended in the direction of the bridge B, a pair of main beams 1 and 1 are similarly arranged in parallel on the unit scaffold 4 assembled and suspended by the operator. 6 and 7, the open ends of the main beam 1 face each other, and the connecting short pipe 13 straddles the ends of both main beams 1 and 1 as shown in FIGS. 6 and 7. The main beam 1 and the upper hole 21a of the main beam 1 according to the position of the insertion hole 20 of the connecting short pipe 13.
And the lower hole 21b are aligned with each other, the screw shaft of the connecting bolt 14 is inserted, and the fixing nut 15 is screwed and fixed to the protruding tip.
The level adjusting bolt 16 is screwed into the welding nut 17 to position the screw shaft inside, and the tip of the screw shaft is pressed against the lower surface 19b of the connecting short pipe 13 with a screwing force to prevent the rattling of the connecting short pipe 13. The main beam 1 and the main beam 1 can be connected to each other in the lengthwise direction in a prevented state, and by similarly incorporating the horizontal beam 2 and the panel member 3,
The unit scaffold 4 can be extended.

The worker can work on the unit scaffold 4 assembled in this way to assemble and extend the prefabricated scaffold A for construction in sequence, and depending on the work place, the prefabricated scaffold for construction. After assembling A on the ground, it can be assembled in the same manner by suspending it with a crane. In addition, first, only the main beam 1 is sequentially suspended and suspended in the longitudinal direction, After assembling the cross beam 2 in order and assembling the framework of the entire scaffold, by laying and fixing the panel member 3 in order,
It is also possible to assemble the whole.

Further, the stopping means 8 is usually used for screwing and attaching an eyebolt for suspending the hanging strip 5, but also for extending the unit scaffold 4 in the width direction by using a clamp or the like. Can be used.

Specifically, as shown in FIG. 11, by providing a plurality of stopping means 8 on the upper surface of the main beam 1 at equal intervals,
By using two of them, the unit scaffolds 4 arranged in the width direction can be fixed via a clamp.

For example, as shown in FIG. 11, the receiving members 7 are provided on both side surfaces.
Using the main beam 1 provided with the above, the unit scaffolds 4 are extended in the lengthwise direction by the connecting means 12, and similarly, plural rows of the unit scaffolds 4 are arranged in parallel, and the screw holes 26 of the adjoining stopping means 8 Screw the screw shaft 31 of the single clamp 30 onto the
As shown in FIG. 12, by grasping the connecting rods 32 with the respective single clamps 30, the connecting rods 32 are arranged and fixed in the width direction on the respective unit scaffolds 4, and the adjacent connecting rods are also fixed.
Position so that the tips of 32 and 32 overlap each other.
As shown in FIG. 13, by gripping the adjacent connecting rods 32 with the free clamps 33 capable of gripping two pipes, the scaffold arranged in the width direction can be fixed.

Although the single clamp 30 and the universal clamp 33 are used in the above-mentioned example, they may be fixed by using wire or the like, and the universal clamp 33 may be screwed without using the single clamp 30. The shaft is erected, and the screw hole 26 of the direct stopping means 8 is provided.
It may be attached to the. Further, it is also possible to directly fix the connecting rod 32 to the upper surface of the main beam 1 and the panel member 3 with a wire or the like without fixing the connecting rod 32 with the clamp using the stopper 8.

Further, in the above-mentioned example, the main beam 1 having the receiving members 7 provided on both side surfaces is used, but it is also possible to use the main beam 1 having the receiving member 7 provided on one surface, and further to the one surface. When the main beam 1 provided with the receiving member 7 is used, the connection can be performed by providing a concavo-convex that can be fitted to the side surface of each main beam 1 facing each other instead of using the connecting rod 32. Is.

As described above, the prefabricated scaffold A for construction of this embodiment
According to this, even an amateur can easily and surely extend the scaffold A in the width direction of the bridge B. Moreover, since the adjacent unit scaffolds 4 can be assembled in order on the unit scaffolds 4 that are assembled and suspended, workability and safety are excellent. Furthermore, by connecting with the connecting bolt 14 and fastening the level adjusting bolt 16, even an amateur can easily and accurately connect the connecting bolt 14 and the level adjusting bolt 16 together. Since it will be operated from above, the operation becomes easier.

Finally, the horizontal beam receiving fitting 34 will be described with reference to FIGS. 14 and 15. In the above-mentioned example, the main beam 1 is welded with the receiving member 7 and the stopping means 8.
34 has a receiving member 7 and a stopping means 8 and is detachable from the main beam 1.

As shown in FIG. 14, the horizontal beam receiving metal fitting 34 extends outward from the side walls 35a of the U-shaped locking member 35 having a size capable of locking the beam member 6 toward the outside. The receiving member 7 in which the fitting protrusion 10 that is
A hook member 36 that locks the hanging strip is erected on 35b, and the lower end of the locking member 35 is further lowered downward so that the main beam 1 can be covered.
By extending the lower piece 37 in a letter shape and penetrating the lower piece 37 and tightening with the fastening bolt 38, the nut 39, and the O ring 40,
It is detachable from the main beam 1.

As shown in FIG. 16, the horizontal beam receiving metal fitting 34 of another embodiment includes a regulating member 9 from both side walls 35a of a U-shaped locking member 35 of a size capable of locking the beam member 6. The receiving member 7 in which the fitting protrusion 10 that is the upright is extended outward, and can be fixed to the beam member 6 with fastening bolts and nuts.
The support nut 23 is welded to 35b. According to this structure, it is not necessary to insert and attach the beam member 6 from the end thereof, and the beam member 6 can be attached anywhere by dropping it from above and fixing it with the fastening bolt and the nut. .

Further, in the horizontal beam receiving fitting 34 shown in FIG. 15, a round pipe is used as the beam member 6 and the locking member 35 is made cylindrical correspondingly.

[0043]

Since the present invention is configured as described above, it has the following effects. According to the fixing structure for a scaffolding suspender or the like according to claim 1, a screw shaft such as an eyebolt can be screwed into the screw hole to attach the suspender or the like. Since the entire scaffold can be hung with a suspending strip such as a chain, it is safe without the scaffold moving with respect to the suspending strip, and the fixing ring can be attached from above to the screw hole on the upper surface of the main beam. Since the structure is covered and reinforced, the strength is also extremely excellent. Also, by providing a screw hole reinforced with a fixing ring in the proper place on the main beam,
It can be used for multiple purposes, such as being able to attach a clamp that holds a pipe or the like.

According to the second aspect of the present invention, there is provided a structure for suspending a scaffold suspender or the like, wherein the tip of the support nut is inserted into the locking hole of the main beam to lock the flange, and the flange is welded to the surface of the main beam. After that, the end of the fixing ring is welded to the surface of the main beam, so double welding results in a structure with better strength.For example, the eyebolt is screwed into the screw hole of the support nut, Even if the whole is suspended and the weight of the scaffold is applied, the structure can sufficiently withstand. Compared to the case where the support nut 23 is simply welded to the upper surface of the main beam 1, the support nut 23 supports the support beam from the lower surface of the main beam 1, and no force is applied in the direction in which the support nut 23 is peeled off. Can have a different structure.

According to the third aspect of the present invention, the support structure having the support nuts erected can be easily replaced by operating the mounting bolts. it can. Therefore, for example, when the main beam is subjected to a plating treatment such as hot dip galvanizing and used, if the eyebolt is repeatedly attached or detached, the plating inside the screw hole of the support nut may be peeled off and cannot be used. The main beam can be used for a long period of time simply by replacing the support plate on which the support nuts are erected.

According to the fixing structure for suspending the scaffold, etc. of claim 4, as compared with the case where the support nut is simply welded to the upper surface of the main beam, the support nut supports from the lower surface of the main beam. Since no force is applied in the direction in which the nut is peeled off, a structure with excellent strength can be obtained. In addition, since the structure described above is excellent in strength, only the spot welding is required to fix the support nut to the reinforcing ring, and as a result, the support nut is damaged due to screwing with the eyebolt or the like. The support nut can be replaced.

[Brief description of drawings]

[Fig. 1] A vertical cross-sectional view showing the use state of an assembly type scaffold for construction

FIG. 2 is a plan view showing the procedure for assembling the work-fabricated scaffolding.

FIG. 3 is a plan view showing the assembling procedure of the assembling scaffold for construction.

FIG. 4 is a plan view showing the assembling procedure of the assembly scaffold for construction.

FIG. 5 is a perspective view showing an assembled state of the assembly type scaffold for construction.

FIG. 6 is an exploded perspective view showing the connecting means and the stopping means in the same manner.

FIG. 7 is a longitudinal sectional view showing the connecting means and the stopping means in the same manner.

8 (a) is an end view of AA in FIG. 7; (b) is an end view of BB in FIG. 7;

FIG. 9 is a vertical sectional view of a main beam showing a stopping means.

[Fig. 10] A schematic explanatory plan view showing a connected state in the width direction of the assembly type scaffold for construction.

FIG. 11 is a perspective view showing a main part of another main beam.

FIG. 12 is a side sectional view showing a usage state of a single clamp.

FIG. 13 is a side sectional view showing a usage state of the universal clamp.

FIG. 14 is an exploded perspective view showing a usage state of the horizontal beam receiving bracket.

FIG. 15 is a vertical cross-sectional view showing the usage state of another horizontal beam receiving bracket.

FIG. 16 is a perspective view showing a usage state of another horizontal beam receiving bracket.

FIG. 17 is a vertical sectional view of a main beam showing another stopping means.

[FIG. 18] Similarly, a plan view of the main part

FIG. 19 is an exploded perspective view of another stopping means.

[Fig. 20] Similarly, a vertical cross-sectional explanatory view of the main beam

[Explanation of symbols]

A Assembled scaffolding for construction B Bridge 1 Main beam 2 Horizontal beam 3 Panel member 4 Unit scaffold 5 Suspension strip 6 Beam member 7 Receiving member 8 Stopping means 9 Restricting member 10 Fitting projection 11 Supporting hole 12 Connecting means 13 Connecting short pipe 14 Connecting bolt 15 Fixing nut 16 Level adjusting bolt 17 Welding nut 18 Locking protrusion 19 Square pipe 20 Insert hole 21 Hole 22 Pressing plate 23 Support nut 24 Fixing ring 25 Collar 26 Screw hole 27 Locking hole 28 Through hole 29 Eye bolt 30 Single Clamp 31 Spiral Shaft 32 Connection Rod 33 Universal Clamp 34 Horizontal Beam Support Metal Fitting 35 Locking Member 36 Hook Member 37 Nut 38 O Ring 40 Through Hole 41 Reinforcement Ring 42 Support Plate 43 Fixing Screw Hole 44 Screw Hole 45 Mounting Bolt

Claims (4)

[Claims] 1. A suspension of a scaffold, characterized in that a screw hole is provided on an upper surface of a main beam, a fixing ring having a through hole for positioning the screw hole is covered from above, and the surface of the main beam and the fixing ring are welded. Fixing structure for tools. 2. A collar of a fixed nut, wherein a fixed nut having a flange at its upper end and having a screw hole in the axial direction is inserted into an opening formed in the upper surface of the main beam to lock the flange, After welding the portion to the main beam, a fixing ring having a through hole at substantially the center is welded to the main beam by covering the through hole and the screw hole of the fixing nut from above and welding the main beam. Stopping structure for hanging equipment. 3. A support plate in which a support nut is erected is located inside a hollow main beam, the support nut is projected from an opening in the upper surface of the main beam, and a mounting bolt is penetrated from the upper surface of the main beam. A structure for fastening scaffolding suspenders, etc., characterized by being screwed and fixed to. 4. A through hole for vertically penetrating a screw shaft portion of an eyebolt is formed in an upper surface and a lower surface of a main beam, and a supporting nut for screwing a screw shaft of the eyebolt is welded to a lower surface of the main beam. Stop structure for suspending equipment for scaffolding.