JPH09242329A - Folding continuous suspended scaffolding - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a folding continuous layer suspended scaffolding which is light in weight and excellent in corrosion resistance. SOLUTION: A rectangular-shaped floor material 31a is laid out horizontally in the lowermost stage of a continuous layer suspended scaffolding 30 where one end portion 32 of a plurality of hanger materials 32 are turnably connected to the top of this floor material 31a. These hangers 32 are arranged to be bendable in the central part in the longitudinal direction. The other end 32c of each hanger material 32 is turnably connected to the bottom of the floor material 31b laid out in the upper part of the floor material 31a while the floor materials 31a and 31b are connected to each other with each hanger material 32 in a vertical posture. The floor materials 31a and 31b are turnably connected with a plurality of bracings whose length is variable. The hanger material 32 connected to both ends of the floor material 31a or the like in the longitudinal direction is turnably connected to the hanger material 32 which is adjacent with this hanger material 32 in the longitudinal direction of the floor material 31a or the like in a horizontal posture by way of a support material 34. The continuous layer suspended scaffolding 30 is designed to be under similar structure between other floor materials.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suspension scaffold used during construction work of building structures and steel structures,
In particular, the present invention relates to a foldable multi-layer suspension scaffold that is easy to deploy and fold and has improved work efficiency and safety during deployment and fold.

[0002]

2. Description of the Related Art A steel frame scaffold used at a construction site, an assembly work site of a steel structure or the like is, for example, JIS A8.
951 as a steel pipe scaffold. This steel pipe scaffold consists of a number of units, and one unit is a set of U-shaped building frames that are arranged in parallel with each other, and a cross brace that connects the one set of building frames in an X shape. It is composed of a steel cloth plate arranged on these building frames. In addition, a jack base for safely setting the scaffold on the ground without vibration is connected to the lower end of each building frame.

A steel pipe scaffold is constructed by connecting and assembling a large number of units using direct connection pins and arm locks provided in each unit, and arranging a staircase frame at a desired position. .

In the framed scaffolding thus constructed, a unit is assembled from a large number of members, and these are assembled in order from below to complete the framed scaffolding having the number of steps required for the work. Further, when the use of the framework scaffold is finished, the order of this work is reversed, and the scaffolds are disassembled in order from above.

As described above, since the frame scaffolding is configured for each unit, it is possible to assemble a frame scaffolding of a desired size necessary for work at a construction site or the like.

However, since the assembling and disassembling work may be carried out at a high place, there is a problem that a fall accident of a person may occur.

Therefore, there is disclosed a frame scaffold capable of assembling and disassembling on the ground without requiring work at a high place and improving the work efficiency (Japanese Patent Laid-Open No. Hei 5 (1999) -58).
No. 25927).

FIG. 5 is a front view showing the method for assembling the frame scaffold disclosed in Japanese Patent Laid-Open No. 5-25927. This frame scaffold 1 has a U-shaped building frame 4 in which the upper ends of two vertical columns 2 are connected by a horizontal crosspiece (not shown), and a pair of building frames 4 arranged facing each other. Braces 5 that are connected in an X shape, and cloth frames 6 that are arranged on the cross rails of these building frames 4.
Alternatively, a joint 7 that connects the walk board and the upper and lower building frames constitutes a floor 1a of one block.

When assembling the frame scaffold 1 thus constructed, first, on the ground, a plurality of building frames 4 arranged in parallel are connected by braces 5 and cloth frames 6 etc. to assemble the floor 1a. . At this time, the upper part of the assembled floor 1a is connected to the hanging fitting 22 by the wire 23, and the hook 21 is connected by using a crane (not shown).
The floor 1a is supported by suspending the suspending metal 22 with.

Next, the floor 1b is added below the floor 1a with the floor 1a floating above the ground. That is, the joint 7 is formed at the upper end of the building frame 4, the joint at the upper end of the building frame 4 forming the floor 1b is inserted into the lower end of the building frame 4 forming the floor 1a, and then the building frame 4 is formed. The building frame 4 of the floor 1b is connected by the brace 5 and the cloth frame 6 by the same operation as when assembling 1a.

After that, by similarly adding floors 1c and 1d, the frame scaffold 1 having a desired height can be assembled.

Even when disassembling the frame scaffold 1,
By supporting the hanging metal fittings 22 connected to the upper part of the floor 1a with a crane, the frame scaffolding 1 is floated from the ground,
Dismantle from the lowest floor 1d.

As described above, since the framework scaffold 1 can be worked on the ground at the time of assembling and disassembling, the safety and work efficiency of the work can be improved.

[0014]

SUMMARY OF THE INVENTION However, JIS
In the steel frame scaffolding specified in A8951, there is a problem that damage and wear of members are likely to occur during assembly and disassembly of the frame scaffold. Further, since the framework scaffold is made of a steel member, its weight becomes large and it is difficult to move the member. Further, since repainting is required to prevent damage due to corrosion of the steel member, there is a problem that the cost increases.

Further, in each of these conventional frame scaffolds, the work of assembling and disassembling is required at the construction site every time it is used, so that member management becomes complicated and the work efficiency of assembling and dismantling is excellent. However, it cannot be said that safety is sufficiently secured. In addition, for assembling and disassembling the scaffolding, a construction period and construction cost different from those for the main body construction are required. Further, in the conventional frame scaffold, it is not possible to easily assemble only the part that requires the scaffold each time the work is performed, so it is necessary to perform the assembly and disassembly work multiple times or to install a large number of scaffolds. , Construction costs will increase.

The present invention has been made in view of the above problems, and it is possible to easily store, unfold and fold members at a low cost, reduce the construction cost, and manage and An object of the present invention is to provide a foldable multi-layer suspension scaffold that is easy to move, can further improve work efficiency and safety, and is preferably lightweight and has excellent corrosion resistance.

[0017]

A folding type multi-layered suspension scaffold according to the present invention connects a plurality of horizontally arranged floor materials with adjacent upper floor materials and lower floor materials in a vertical posture. A plurality of hanging members, a plurality of bracing members that connect adjacent upper floor members and lower floor members in an inclined posture, and a support member that connects adjacent hanging members in a horizontal posture; The material is relatively rotatable at the connecting portion with the floor material, and is bendable at the central portion thereof, and the bracing material is relatively rotatable at the connecting portion with the floor material. At the same time, the length is variable, and the supporting member is relatively rotatable at a connecting portion with the suspending member.

A staircase is preferably swingably attached to a part of the floor material. In addition, it is preferable that a hanging frame that serves as a supporting portion when hanging is attached to the uppermost floor material.

Further, the connecting wire of the winding device is connected to the bottom floor material, and the bottom material is rolled up by this winding device so that a predetermined number of floor materials above the bottom layer are folded and stacked. It is preferable.

Furthermore, the floor material, the hanging material and the bracing material can be made of aluminum or aluminum alloy.

In the present invention, a plurality of suspending members for vertically connecting the adjacent upper floor member and lower floor member are vertically rotatable at the connecting portion with the floor member, and at the same time, in the central portion. Can be bent at. In addition, a plurality of bracing members that connect the upper floor member and the lower floor member that are adjacent to each other in an inclined posture are rotatable at the connecting portion with the floor member, and have variable lengths. . Therefore, by bending the hanging material at its center and reducing the length of the bracing material, it is possible to easily fold and stack the upper floor material on the lower floor material. Lumber can be stored between stacked floor materials.

Further, although a supporting material is reinforced by connecting a supporting material to an adjacent hanging material, since this supporting material is also rotatable at the connecting portion with the hanging material, the supporting material is a scaffold. Does not prevent the folding of the. When using scaffolding, it can be easily deployed or moved by suspending the uppermost floor material, and since the adjacent suspending materials are connected in a horizontal posture by the support material, distortion does not occur. The scaffold can be deployed with high accuracy. In this way, because it is a suspended type and easy to move, it is possible to install scaffolds only in the parts that require scaffolds each time when working, and the number of scaffolds is reduced, reducing construction costs can do.

Further, in the present invention, when the stairs are swingably attached to a part of the floor members, the upper floor member and the lower floor member are suspended by the stairs at the time of unfolding. It becomes a means that can move between floor materials. In addition, when the stairs are folded, the stairs are moved so that the stairs are in close contact with the floor material to which the stairs are attached, with the mounting portion being swingably attached as a fulcrum. Therefore, the stairs can be easily housed between the stacked floor members, as in the case of the hanging members, so that a multi-layer hanging scaffold in which the stairs are integrated can be obtained.

Further, in the suspension scaffold of the present invention, it is preferable to suspend the scaffold from above and use it. At this time, if a hanging frame that serves as a supporting part when hanging is attached to the uppermost floor material, for example, by fixing the hanging frame to the supporting member by providing the supporting member to the construction object. Therefore, the work of deployment can be facilitated.

Furthermore, in the present invention, a winding device is provided, and when the connecting wire of this winding device is connected to the floor material of the lowermost stage, the winding device winds the connecting wire. It is possible to fold and stack a predetermined number of floor materials above the bottom. Therefore, at the construction site,
A scaffold with a desired number of steps can be easily installed.

Furthermore, in the present invention, when the flooring material, the hanging material and the bracing material are made of aluminum or aluminum alloy, the weight of the scaffold as a whole can be reduced, so that the scaffolding can be easily assembled and folded. The movement becomes easy. Further, since aluminum or aluminum alloy material has excellent corrosion resistance, it is not necessary to apply coating for corrosion prevention to members. Therefore, since damage and wear due to corrosion of the members do not occur, it is possible to prevent the members from missing due to corrosion and improve the safety.

[0027]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be specifically described below with reference to the accompanying drawings.

FIG. 1 (a) is a side view showing a state in which the folding type multi-layer suspension scaffold according to the embodiment of the present invention is deployed, and FIG. 1 (b) is a front view thereof. 2A is a plan view showing a floor frame that supports the scaffolding plate, and FIG. 2B is a plan view showing the scaffolding plate.

As shown in FIGS. 1 (a) and 1 (b),
The suspension scaffolding 30 has a plurality of floor materials 31a, 31 arranged horizontally.
b, 31c, 31d, 31e, 31f, and 31g, and a plurality of suspending members 32 and bracing members 33 that connect them, and the configuration is almost the same between any adjacent flooring materials. The configuration between the bottom floor material 31a and the floor material 31b above it will be described.

At the bottom, rectangular floor material 31a
Are horizontally arranged, and one end portions 32b of a plurality of suspension members 32 are rotatably connected to the upper surface of the floor member 31a. In this embodiment, four hanging members 32 are arranged on both sides of the rectangular floor member 31a in the longitudinal direction, and these hanging members 32 are arranged in the central portion 32 in the longitudinal direction.
A can be bent. In practice, the hanging member 32 is 2
It is composed of a book member, and these two members are rotatably connected.

The other end 32c of each suspension member 32 is rotatably connected to the lower surface of a floor member 31b arranged above the floor member 31a. That is, at the time of deployment, the floor material 3
1a and the floor material 31b are connected in a vertical posture by each suspension material.

Further, the floor material 31a and the floor material 31b are rotatably connected to each other by a plurality of bracing members 33 in an inclined posture, and in the present embodiment, they are adjacent to each other in the longitudinal direction of the floor material 31a and the like. Between the hanging members 32, two bracing members 3
3 are connected at the central portion 33a so as to cross each other in an X shape. The length of the bracing member 33 is variable. That is, the bracing member 33 is configured by inserting two tubular members into the other one, and the entire length of the bracing member 33 is changed by adjusting the insertion amount. Is able to.

The suspending member 32 connected to both longitudinal ends of the floor member 31a and the suspending member 32 adjacent to the suspending member 32 in the longitudinal direction of the floor member 31a are supporting members. 34 is rotatably connected in a horizontal posture. In this embodiment, the support member 34 is arranged so as to be connected at the central portion 32a of the suspension member 32. Furthermore, floor material 3
Two hanging members 32 facing each other in the width direction such as 1a are 2
It is fixed by a horizontal frame 35 of a book, and the width between the two suspenders 32 is fixed by the horizontal frame 35, and both are reinforced.

As shown in FIGS. 2 (a) and 2 (b),
In the present embodiment, the floor material 31b is configured by placing the scaffold plate 51 on the floor frame 50. Floor frame 5
0 is composed of two long bar members 50a and four short bar members 50b arranged in a direction orthogonal to the bar members 50a and fixing the bar members 50a in parallel with each other.

On the other hand, the scaffold plate 51 has a staircase 36 attached to the center part thereof so as to be swingable, and a passage opening 51a through which a person enters and exits is provided with the mounting portion 36a of the staircase 36 as an end portion. . A door 51b is arranged on the passage opening 51a, and by covering the door 51b, it is possible to prevent a person or the like from falling when a person does not pass through.

In this way, the floor material 31a at the lowermost stage and the floor material 31b above it are connected by the suspending material 32 and the bracing material 33. This configuration is between all floor materials,
Since it is the same, detailed description of other floor materials will be omitted. However, since it is not necessary to attach stairs to the scaffolding plate (not shown) that constitutes the bottom floor material 31a,
Passageways and doors are not formed.

A suspension frame 37 extending in the same direction as the longitudinal direction of the floor material 31g is attached above the uppermost floor material 31g of the suspension scaffold 30. Therefore, the hanging frame 37
Thus, the suspension scaffold 30 can be suspended on the support member 41 provided on the building object 40.

Further, a wire 39 is attached to the horizontal frame 35 arranged between the uppermost floor material 31g and the lower floor material 31f.
A winding device 38 for winding the wire is fixed, and the tip 39a of the wire 39 is connected to the floor material 31a at the bottom. The winding device 38 can be fixed at a position that does not hinder the folding operation.
It can also be fixed to g or the floor material 31f.

Next, the operation of the suspension scaffolding 30 constructed as above will be described. FIG. 3 is a front view partially showing an intermediate stage of folding the suspension scaffold 30, and FIG. 4 is a suspension scaffold 3
It is a front view which shows the folded state of 0 partially.

When the suspension scaffold 30 is folded, FIG.
As shown in, the hanging member 32 is bent at its central portion 32a, and the length of the bracing member 33 is shortened. Then, the lower end 36b of the stairs 36 and the support member 34 move to slide in the horizontal direction. Therefore, as shown in FIG. 4, the suspension members 32, the bracing members 33, the support members 34, the stairs 36, and the like are all housed between the floor members. Thus, the suspension scaffold according to the present invention can be easily folded without disassembling all members. Therefore, the folded and stacked state can be moved to another place and can be stored as it is.

On the other hand, at the time of unfolding, by suspending the suspension frame 37 with a crane or the like, the suspending member 32 bent at the central portion 32a extends linearly and the length of the bracing member extends. After that, by fixing the central portion 33a of the bracing member 33 and the central portion 32a of the hanging member 32 with fixing pins (not shown), the hanging scaffold 30 can be very easily deployed without performing assembly work or the like. it can.

As described above, since the suspension scaffolding 30 is of a hanging type and is easy to move, it is possible to install the scaffolding only in a portion where the scaffolding is required each time the work is performed.

Further, the suspended scaffolding 30 is the top floor material 31g.
Although it can be installed on the building object 40 or the like by the hanging frame 37 connected to, at this time, by winding the wire 39 by the winding device 38, the bottom floor material 31a is lifted upward, Only a predetermined number of floor materials can be folded and stacked, and a scaffold having a desired number of steps can be easily installed.

Since the folding type multi-layer suspension scaffold of the present invention is moved in a folded and stacked state, it is preferably lightweight. Therefore, it is desirable that it is made of aluminum or an aluminum alloy.

[0045]

As described in detail above, according to the present invention,
Since all the members constituting the suspension scaffold are integrated and are foldable, the work of assembling and disassembling at a construction site can be omitted, and safety and work efficiency can be improved. Further, since the members are integrated, it is easy to move and manage. In this way, since it is a hanging type and easy to move, it is possible to install the scaffold only in the part that requires the scaffold each time of work,
Since the number of scaffolds is reduced, the construction cost can be reduced. Furthermore, when the stairs are swingably attached to the floor material constituting the scaffold, the stairs can be integrated with the scaffold, and the work efficiency can be further improved. Furthermore, if a winding device capable of lifting the bottom floor material and a hanging frame are provided, folding or unfolding is further facilitated, and a scaffold having a desired number of steps can be easily constructed. Etc. can be installed. Furthermore, when the member constituting the scaffold is made of aluminum or an aluminum alloy, it is lightweight and can improve the corrosion resistance, and further facilitates storage and movement.

[Brief description of drawings]

FIG. 1 (a) is a side view showing a state in which a folding type multi-layer suspension scaffold according to an embodiment of the present invention is deployed.
(B) is the front view.

FIG. 2 (a) is a plan view showing a floor frame that supports the scaffolding plate, and FIG. 2 (b) is a plan view showing the scaffolding plate.

FIG. 3 is a front view partially showing an intermediate stage of folding the suspension scaffolding 30 according to the embodiment of the present invention.

FIG. 4 is a front view partially showing a folded state of the suspension scaffold 30 according to the embodiment of the present invention.

FIG. 5 is a front view showing a conventional method for assembling a frame scaffold.

[Explanation of symbols]

1; Frame scaffold 2; Vertical column 4; Building frame 5; Brace 6; Cloth frame 22; Hanging metal fitting 30; Hanging scaffold 31a, 31b, 31c, 31d, 31e, 31f, 3
1 g; Floor material 32; Hanging material 33; Bracing material 34; Support material 35; Horizontal frame 36; Stairs 37; Hanging frame 38; Winding device 39; Wire 40; Construction object 41; Support member 50; Floor frame 51; Scaffolding board 51a; Passage opening 51b; Door

Front Page Continuation (72) Inventor Tatsuo Komatsu 1-2-1, Nigashibashi Kashikushicho, Chuo-ku, Tokyo Asahi Lelac Co., Ltd.

Claims (5)

[Claims] 1. A plurality of horizontally arranged floor materials, a plurality of hanging materials that connect adjacent upper floor materials and lower floor materials in a vertical posture, and adjacent upper floor materials and lower floor materials. It has a plurality of bracing members that connect the members in a tilted posture and a support member that connects adjacent hanging members in a horizontal posture, and the hanging members are relatively rotatable at the connecting portion with the floor member. In addition, it is bendable at its central portion, the joint portion of the bracing member is relatively rotatable with respect to the floor member, and its length is variable, and the supporting member is the suspension member. A foldable multi-layer suspension scaffold, characterized in that a connecting portion with the material is relatively rotatable. 2. The folding type multi-layer suspended scaffold according to claim 1, wherein a stair is swingably attached to a part of the floor materials. 3. The folding multi-layer suspension scaffold according to claim 1 or 2, wherein a suspension frame serving as a support portion when suspended is attached to the uppermost floor material. 4. A connecting wire of a winding device is connected to a bottom floor material, the lower floor material is rolled up by the winding device, and a predetermined number of floor materials above the bottom layer are folded and stacked. The folding multi-layer suspension scaffold according to any one of claims 1 to 3. 5. The foldable multi-layer suspended scaffold according to claim 1, wherein the floor material, the suspension material, the bracing material, and the support material are made of aluminum or an aluminum alloy.