JPH0835335A - Sheet spreading structure - Google Patents

Abstract

PURPOSE:To easily spread a net sheet, etc., on a unit scaffolding and to tuck it away in a short period of time and safely by making a bulging part on an edge part of a neighbouring sheet and installing a slit through which the edge part of the sheet passes by way of respectively communicating to holes accepting each other along the longitudinal direction. CONSTITUTION:A sheet spreading apparatus 3 of the top part is lifted up by drawing pendant ropes 20, 21. Simultaneously, a sheet 2 connected to the sheet spreading apparatus on the top part and the sheet 2 connected through the sheet spreading apparatus 3 in the middle of this sheet 2 are spread on the front surface of a unit scaffolding 1 by way of lift them up. All the sheets 2 are tightly spread and fixed by suspending the sheets 2 on a cross member 34 of the unit scaffolding 1 by way of respectively inserting a lashing belt 28, the ropes, etc., through a plural number of slots 26 of the sheet spreading apparatus 3 on the top part after spreading all the sheets 2. In the case when wind, etc., becomes strong, all the sheets 2 are lowered and folded on the unit scaffolding 1 by removing the lashing belt 28 or the ropes, etc., suspended on the cross member 34 of the unit scaffolding 1 and loosening the pendant ropes 20, 21.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet tensioning structure for tensioning a sheet used for a unit scaffolding at a construction site by a long sheet tensioning tool so that the sheet can be stored.

[0002]

2. Description of the Related Art Recently, in construction work, without using an enclosure scaffold, unit scaffolds are used, and the unit scaffolds are raised one after another to perform construction work at a predetermined height, and In order to prevent construction materials, work tools, etc. from falling from the unit scaffold during construction, mesh sheets are stretched over the unit scaffold. Conventionally, a net sheet or the like has been stretched by attaching a unit scaffold to a eyelet hole provided in the net sheet through a string or the like.

[0003]

By the way, if the net sheet is still stretched even when wind or the like becomes strong, a strong wind pressure may be applied to the net sheet, and the unit scaffold may be greatly shaken to be in a dangerous state. There is a situation in which the mesh sheet must be removed from the unit scaffold, but as mentioned above,
If a mesh sheet or the like is stretched by inserting a string or the like into the eyelet hole, the removal work is extremely troublesome and takes time,
Moreover, it is dangerous because it is a high place. Further, when the mesh sheet is stretched again, the work is also extremely troublesome and time consuming.

The present invention has been made in view of the above points, and an object of the present invention is to easily stretch a net sheet or the like on a unit scaffolding and when wind or the like becomes strong. Another object of the present invention is to provide a seat tension structure in which a net sheet or the like can be stored safely in a short time.

[0005]

According to the present invention, the above object is a seat tension structure in which a seat used for a vertically movable unit scaffold is stretched by a long seat tension tool. The tensioning tool has a pair of a hole that receives an enlarged portion formed at the edge of the sheet and a pair of slits that are communicated with the hole and through which the edge of the sheet passes. Each of the enlarging parts of the edge is received in each of the holes of the seat tensioning tool, and the guide ropes stretched vertically on the unit scaffold pass through both ends of the seat tensioning tool in the longitudinal direction. A U-shaped metal fitting is attached, one end of the suspension rope is connected to the uppermost sheet tensioning tool, and the suspension rope is hung on the pulley attached to the unit scaffolding. The seat tensioner at the bottom is a unit foot The coupling is accomplished by a sheet stretched structure being fixed.

In one embodiment of the present invention, the sheet comprises a plurality of sheets, the sheets having a rim of an edge portion in a hole of an intermediate sheet tensioner arranged between the uppermost and lowermost sheet tensioners. The ampulla are received and connected in series with each other through the intermediate sheet tensioning tool.

In the present invention, a U-shaped metal fitting through which another guide rope stretched vertically in the unit scaffold can be attached to at least the middle portion in the longitudinal direction of the uppermost sheet tensioning tool. Further, the sheet is not limited to the mesh sheet, and may be a sheet with eyes closed.

[0008]

According to the seat tensioning structure of the present invention, when the suspending rope is pulled on the unit scaffolding, the uppermost sheet tensioning tool connected to one end of the suspending rope is pulled up. A sheet having an enlarged portion at the edge, which is inserted into the hole of the fixture, is also pulled up and stretched. During the pulling up, the sheet tensioning tool is smoothly guided upward by the guide ropes through the U-shaped metal fittings at both ends thereof. Even after being stretched on the unit scaffolding, the sheet tensioning tool is held at both ends thereof by the guide ropes via the U-shaped metal fittings so as not to flutter. If there is a possibility of strong wind, unwind the hanging rope, lower the uppermost sheet tensioning tool, take in the seat on the unit scaffolding, fold the taken-in seat if necessary and use a rope etc. Secure to unit scaffolding.

The present invention will now be described in more detail based on the preferred embodiments shown in the drawings. The present invention is not limited to these specific examples.

[0010]

SPECIFIC EXAMPLE In FIG. 1 to FIG. 5, in the seat tensioning structure 4 of the present example in which a plurality of sheets 2 used in the unit scaffold 1 are stretched by a long sheet tensioning tool 3, The fixture 3 has holes 13, 1 for receiving the enlarged portions 11, 12 formed on the edges 9, 10 of the adjacent sheets 2, respectively.
4 and slits 15 and 16 which are respectively communicated with the holes 13 and 14 and through which the edge portions 9 and 10 of the sheet 2 pass, are provided along the longitudinal direction thereof. In this example, the hole 14 of the uppermost sheet tensioning tool 3 and the hole 13 of the lowermost sheet tensioning tool 3 are used.
Respectively are not used for receiving the ampulla 12 of the seat 2.

The plurality of sheets 2 are respectively received in the holes 13 and 14 of the upper and lower sheet tensioning tools 3 in which the enlarged portions 11 and 12 of the edge portions 9 and 10 are arranged at both ends thereof. , The enlarged portions 11 and 12 are the edge portions 9 of the seat 2,
Loop 10 and insert rope etc. into it,
The edges 9 and 10 are sewn together to form holes 13 and 1.
4 is inserted from the lateral end face in the longitudinal direction and is received in the holes 13 and 14. U-shaped metal fittings 19 through which the guide ropes 17 and 18 stretched in the vertical direction on the unit scaffold 1 pass are attached to both ends of the seat tensioning tool 3 in the longitudinal direction. 3 is a hanging rope 2
The ends 22 and 23 of 0 and 21 are connected to each other, and the hanging ropes 20 and 21 are hung on pulleys 24 and 25 attached to the unit scaffold 1, respectively.
In the lowermost sheet tensioning tool 3, a string or a lashing belt 28 with a buckle 27 inserted into each of the plurality of elongated holes 26 of the sheet tensioning tool 3 is hung and connected to a lateral member 29 of the unit scaffold 1, It is fixed.

The guide rope 17 has a thimble 3 at the upper end.
1, the shackle 32 and the metal fitting 33 are attached to the lateral member 34 (see FIG. 5 for the guide rope 18) at the upper end of the unit scaffold 1, and at the lower end, the thimble 35, the turnbuckle 36 and the metal fitting (not shown). It is attached to the lower end lateral member 29 of the unit scaffold 1 via.
Similarly, the upper end of the guide rope 18 is attached to the lateral member 34, and the lower end thereof is attached to the lateral member 29. The guide rope 17 is operated by operating the turnbuckle 36.
It is possible to adjust the degree of tension (also for the guide rope 18). The turnbuckle 36 may be provided on the upper end side of the guide ropes 17, 18. In this example, the U-shaped metal fitting 19 is made of a shackle, and pins 41 of the shackle are inserted into through holes 42 formed at both ends of the sheet tensioning tool 3,
It is connected to the seat tensioning tool 3. Hanging rope 2
Looped ends 22 and 23 of 0 and 21, respectively
A shackle 51 is connected to the shackle 5
The respective pins 53 of No. 1 are inserted into the through holes 54 formed in the sheet tensioning tool 3, and the hanging ropes 20, 21
Each one end 22, 23 is connected to the uppermost sheet tensioning tool 3.

Each of the suspension ropes 20 and 21 is
The pulleys 24 and 25 attached to the unit scaffold 1 are suspended, and each of the pulleys 24 and 25 has a ring 6
3 and a shackle 64 are attached to the horizontal member 34 at the upper end.

A U-shaped metal fitting 72 made up of a U-bolt or the like through which another guide rope 71 stretched vertically on the unit scaffold 1 passes at each longitudinal intermediate portion of the seat tensioning tool 3 of this example (see FIG. 6) is attached, and the guide rope 7
Similarly to the guide ropes 17 and 18, the upper end of the guide 1 is attached to the lateral member 34 and the lower end thereof is attached to the lateral member 29. As shown in FIG. 6, the U-shaped metal fitting 72 has its both ends penetrating through the elongated holes 26 formed in the seat tensioning tool 3 and extending in the longitudinal direction, and is screwed to the stopper plate 76, so that the seat tensioning tool is It is fixed to 3.

A large number of unit scaffolds 1 are arranged around a skeleton at a construction site, and are raised by a crane or the like according to the assembling of the skeleton, and are fixed to the skeleton by a fixing device 81 or the like on the way. The uppermost stage 82 of the unit scaffold 1 is telescopic with respect to the lower scaffolding and is expandable and contractable, and is slightly extended upward in the assembly work of the uppermost frame.

In the seat tensioning structure 4 as described above, when the suspending ropes 20 and 21 are pulled by an operator on the unit scaffolding 1, the uppermost sheet tensioning tool 3 is lifted, and together with this, the uppermost part. The sheet 2 connected to the sheet tensioning tool 3 and the sheet 2 connected to the sheet 2 via the intermediate sheet tensioning tool 3 are lifted and tensioned on the front surface of the unit scaffold 1. After all the seats 2 are completely stretched, a lashing belt 28 with a buckle 27, a rope, or the like is passed through each of the plurality of long holes 26 of the uppermost sheet tensioning tool 3, and this is passed through the lateral member 34 of the unit scaffold 1. The sheet 2 is stretched and pulled so that all the sheets 2 are taut and fixed. When the wind or the like becomes strong, the lashing belt 28 with a buckle or the rope or the like that is hung on the lateral member 34 of the unit scaffolding 1 is removed, and the hanging ropes 20 and 2 are attached.
Loosen 1 and lower all seats 2 to unit scaffold 1
Fold it up.

When a vertically long seat 2 is used, as shown in FIG. 4, lashing belts 28 with buckles 27 are sewn at appropriate positions on both ends of the seat 2, and the lashing belt 28 is attached to the guide ropes 17. The seat 2 is fastened to both ends with a buckle 27, and in some cases, the seat 2 is pulled by a lashing belt 28, and then both ends are stopped with the buckle 27 so that the middle portion of the seat 2 does not flutter. It may be taut in the lateral direction. Furthermore, as shown in FIG. 4 and FIG.
The lashing belt 28 with the buckle 27 is passed through the elongated hole 26, and the stopper plate 85 is used to prevent the lashing belt 28 passed through the elongated hole 26 from coming off, and the lashing belt 28 is hung over the lateral member 86 in the middle of the unit scaffold 1. You may make it stop both ends with the buckle 27.

The holes 42 and the long holes 26 may be arranged in the sheet tensioning tool 3 at equal intervals along the longitudinal direction, if necessary.

To raise the uppermost portion 82 of the unit scaffold 1, the turnbuckle 36 or the like may be operated, but the uppermost sheet tensioning tool 3 is detached and reattached to the lateral member 34. It may take time and workability may be poor. Therefore, as shown in FIG. 8, an enlarged portion 9 similar to the enlarged portions 11 and 12 is provided on at least one sheet 2.
The sheet pieces 93 and 94 having the sheet numbers 1 and 92 are sewn together, the enlarged portions 91 and 92 are received in the holes 13 and 14 of the sheet tensioning tool 3, and the sheet pieces 93 and 94 are mutually connected to the sheet tensioning tool 3. Then, the slack portion 95 may be provided on the seat 2 in advance, and when the uppermost portion 82 is raised, the seat tensioning tool 3 may be removed so that the seat 2 may be stretched. By doing so, workability is significantly improved.

[0020]

As described above, according to the present invention, a net sheet or the like can be easily stretched on a unit scaffold, and when wind or the like becomes strong, the net sheet or the like can be safely put in a short time. Can be stowed.

[Brief description of drawings]

FIG. 1 is a schematic front view of a preferred embodiment of the present invention.

FIG. 2 is a side view of the specific example shown in FIG.

FIG. 3 is a detailed explanatory diagram of a tensioning tool, a sheet and the like of the specific example shown in FIG.

4 is a partially enlarged detailed explanatory view of the specific example shown in FIG. 1. FIG.

5 is a partially enlarged detailed explanatory view of the specific example shown in FIG. 1, in which (a) is a side view and (b) and (c) are front views.

FIG. 6 is a partially enlarged detailed cross-sectional view of FIG.

7 is a partially enlarged detailed cross section of FIG.

FIG. 8 is an explanatory diagram of a seat extension mechanism.

[Explanation of symbols]

 1 unit scaffold 2 seat 3 seat tensioning tool 4 seat tensioning mechanism 17, 18 guide rope 20, 21 suspension rope 19 U-shaped metal fitting 24, 25 pulley

Claims (3)

[Claims] 1. A sheet tensioning structure in which a sheet used for a vertically movable unit scaffold is stretched by a long sheet tensioning tool, and the sheet tensioning tool is formed at an edge portion of the sheet. The sheet has a pair of a hole for receiving the enlarged portion and a slit which is communicated with the hole and through which the edge portion of the sheet passes, and the sheet has the enlarged portions on both edge portions arranged at both ends thereof. U-shaped metal fittings, which are received in the holes of the upper and lower seat tensioners, and through which the guide ropes stretched vertically in the unit scaffold pass, are attached to both ends of the seat tensioner in the longitudinal direction. One end of the hanging rope is connected to the uppermost sheet tensioning tool,
The suspension rope is hung around a pulley attached to the unit scaffolding, and the seat tensioning tool at the bottom is connected and fixed to the unit scaffolding. 2. The sheet comprises a plurality of sheets, and these sheets are arranged between the uppermost and lowermost sheet tensioning tools,
Each of the holes of the intermediate sheet tensioning tool that has a pair of a hole that receives an enlarged portion formed at the edge of the sheet and a slit that is communicated with the hole and through which the edge of the sheet passes 2. The seat tension structure according to claim 1, wherein each of the enlarged portions of the edge portion is received by and is connected in series with each other via the intermediate sheet tensioning tool. 3. A U-shaped metal fitting through which another guide rope stretched vertically in the unit scaffold is attached to at least a middle portion in the longitudinal direction of the uppermost sheet tensioning tool. Seat tension structure described in.