JPH01158177A - Elevation type scaffold - Google Patents

Abstract

PURPOSE: To quicken assembling and dismantling of a scaffold by mounting a horizontally mounted truss suspending a scaffold at an upper end of an opposed vertically moving mast with a bolt and mounting the mast on a body via a mounting member and a guide rail. CONSTITUTION: A horizontally mounted truss 3 suspending many suspension scaffolds is mounted on an upper end part of an opposed vertically moving mast 1 provided with a trap with a bolt. Next, the opposed vertically moving mast 1 is mounted on a body 16 via a mounting member 15 and a guide rail 10. Because an electric winch 11 and sheaves 12, 14 are installed in the opposed vertically moving mast 1 and these are connected with a rope line 13, climbing of the vertically moving mast 1 or vertically moving of the horizontally mounted truss 3 is made possible by driving the electric winch 1. As a result, stabilizing at the time of climbing the scaffold and quickening of assembling and dismantling can be contrived.

Description

[Detailed description of the invention] "Industrial application field" This invention relates to an elevating scaffold.

``Conventional technology'' Exterior wall frame scaffolding and single pipe scaffolding, which have been used as the mainstream for construction for over 20 years, secure scaffolding for work when work at high places is required. This scaffolding is constructed for the purpose of safely carrying out the work, such as reinforcing bar assembly, formwork construction, formwork inspection, etc.

It is common to perform various types of work such as pouring concrete, inspecting and repairing the walls of structures, and then removing them after the work is complete. For this reason, such scaffolds are desired not only to be safe and workable, but also to be easy to assemble and dismantle.

However, conventional scaffolds have the following problems that need to be solved.

Firstly, as these structures become taller, the working floors must be stacked up, requiring sufficient consideration for strength and collapse prevention, which makes the structure complex and the assembly and... There are problems such as making disassembly difficult. Furthermore, since it is configured to be installed on the ground, it takes up space on the ground, and there is a problem in that this space cannot be used effectively.

Second, at construction sites etc. that require formwork forming,
Scaffolding is required to perform various types of work such as building formwork, reinforcing bars, and pouring concrete, so it is desirable to improve work efficiency, but with the conventional scaffolding mentioned above,
The problem was that it was difficult to carry out the previous process, including reinforcing bars, at the same time as the formwork and concrete pouring, and the work efficiency was low.

As a solution to the problem of ridges, scaffolding of the minimum necessary height is installed on the completed frame, and the frame work is carried out while automatically climbing while taking the reaction force, and the exterior finishing work is carried out while climbing in reverse. A so-called elevating scaffold has been proposed, which can: i) require less scaffolding area, so the amount of scaffold assembly and disassembly work can be greatly reduced;

ii) Since assembly and disassembly work is performed on the ground, there is less risk of falling accidents.

ii) Since the scaffolding is not raised from the ground, the external space on the first floor can be used effectively.

iv) The formwork panels can be lifted together with the scaffolding, so
This eliminates the need for carpenters to move formwork materials vertically.

(2) When the height exceeds 45 m, it becomes difficult to assemble the scaffold from the ground, but the elevating scaffold can be used with any height limit, and is particularly advantageous for super high-rise SRC and RC structures.

are enjoying benefits such as

As a proposal on ridges, there is Japanese Patent Application Laid-Open No. 59-72353.

``Problem that the invention seeks to solve'' However, conventional scaffolding on ridges has a minimum height (2F
Since the unit is a rectangular enclosing frame rigidly assembled (equivalent), the load is greatly reduced in the height direction, but the rectangular enclosing frame is designed to surround the construction building. They must be connected and arranged in the lateral direction, and a large number of units must be prepared, which requires time and effort to assemble and disassemble.

In addition, climbing of a rectangular surrounding frame is not done while holding onto the frame and taking a reaction force to prevent it from separating from the frame, but is done while taking a reaction force to the adjacent unit. It lacks stability in terms of sticking to the surface.

"Means for Solving the Problems" and "Operation" The present invention was made in view of the situation on the ridge, and its gist is that between the upper ends of a pair of opposing elevating masts provided with vertical ramps on their outer surfaces, A hanging scaffold consisting of a number of scaffolding boards attached to a hanging chain at regular intervals is erected by bolting a suspended horizontal truss, and the lifting mast is equipped with a cable stopper as a member installed on the main body side. , a locking hook with a fall prevention cam stopper, and a cable made of wire or chain, etc., equipped with a removable locking block that spans endlessly between the upper end sheave attached to the sliding stopper and the lower end electric winch. , ■ A guide rail made of shaped steel, with a locking block that can move forward and backward, and furthermore, a vertical guide pole placed on the vertical guide pole installed on the vertical mast side of the horizontal truss is connected to the horizontal truss by lifting it out from the horizontal truss side. The clamping roller is attached to the horizontal truss so that it can freely slide vertically, and at least one end of the horizontal truss can be fixed to the endless cable.
In addition, a smooth elevating mechanism for the horizontal truss with one end supported by a wire stretched between the upper and lower ends of the opposing elevating masts via sheaves provided at both ends of the lower side of the horizontal truss is installed. The aim is to simplify the assembly and disassembly of the body, stabilize it during climbing, and furthermore, speed up the assembly and disassembly of the -layer unit body.

"Example" Hereinafter, this invention will be explained in detail based on the drawings.

Figure 1 is an overall front view of the lifting type scaffolding unit of the present invention, Figure 2a
, b is the front and side view of the main part of the lifting mast, Fig. 3a
w d is a view taken along arrows a - d in Fig. 2, e - g are detailed views of each component in Fig. 4, and Fig. 4 a.

b is an explanatory diagram showing how the elevating scaffold of the present invention is used, Fig. 5 a% e is an explanatory diagram of the climbing procedure of the elevating scaffold of the present invention, and Figs. 6 a and b are additional configurations in the developed version of the present invention. FIG.

In Fig. 1, 1.1 in the figure is a pair of opposing lifting masts, a vertical gangway 2.2 is provided on the outer surface of the masts, and a horizontal truss 3 is installed between the upper ends of the masts 1.1. It is constructed using simple bolts to form a gate-shaped structure.

On the lower side of the horizontal truss 3, there are hanging chains 4°... and a large number of scaffolding boards 5. A suspended scaffolding 6 equipped with... is suspended.

In this way, a gate-shaped frame unit with a suspended scaffold inside is constructed, and if necessary, an appropriate number of adjacent scaffolds are connected in the horizontal direction to form a scaffold surrounding the building to be constructed.

In the case of the ridge unit, assembly and disassembly of the scaffolding is completed only by attaching and detaching the horizontal truss 3.

As is clear from the above, in the above-mentioned unit, the horizontal truss 3 not only has the significance of connecting the left and right masts 1.1 to form a stable frame, but also serves as a hanging base for easily attaching and detaching the hanging scaffold 6. It has significance.

The mast 1.1 is required to be self-supporting (independently climbing), and although the illustrated embodiment is installed on the ground, it is reinforced with a self-supporting bracket 7 and a stay fitting 8.

In addition, 9. in the figure. ...indicates a handrail.

FIG. 2 shows the mast 1 in detail with the scaffolding separated from the ground, and FIG. 3 shows each component in detail.

In the figure, 10 is a guide rail made of ■-shaped steel installed vertically on the back of the mast 1, 11 is an electric winch fixed to the lower end of the mast, and 12 is a sheave arranged at the upper end of the mast, between the electric winch 11 and the sheave 12. A cable 13 made of wire or chain is endlessly strung across.

In the figure, 14 is an intervening sheave arranged in front of the electric winch 11.

In the figure, reference numeral 15 denotes a member that is attached to anchors 17 that are buried at predetermined intervals when constructing the frame 16. This member has a lower part supported by a bracket 18, stands up, and has a U at the tip that can be freely folded forward. A cable stopper 21 having a groove 20, and a fall prevention cam stopper 2 that locks the guide rail 10 from both sides.
7, a sliding stopper 25 whose lower part is supported by a bracket 23, and which can stand up and fall forward.

A locking block 26 that acts on the sliding stopper 25 is disposed at the lower end of the mast 1 so as to be able to move forward and backward, and the guide rail 1σ is locked to the locking hook 22, so that the mast 1 is attached to the main body 16. The locking block 26 locks with the sliding stopper 25, thereby preventing the slider from lowering.

To change the position from the state of preventing descent on the ridge, attach a removable locking block 28 to the cable 13 and lock it to the cable stopper 21, as shown in FIG.
1, the mast 1 will rise if the cable 13 is wound up, and will descend if it is unwound (the sliding stopper 25 will be unlocked when descending).

Therefore, as shown in Fig. 4, the unit body structured like a ridge is constructed with the frame 16 installed on the ground (Fig. a).
Next, the reaction force is applied to the completed frame 16 to cause it to climb upward (see figure b), and the same process can be repeated thereafter.

In addition, 36 in the figure shows a curing net.

The furrowing process will be explained in detail in FIG.

After completing the 3Fli body, replace member 15B with 15A.

(a) Replace the member 15C with 150, and lock the cable 13 to the cable stopper 21, then use the electric winch 11.
It is raised by the winding operation. (b) After completing the ascent, the sliding stopper 25 is activated to support the scaffolding and the 4th floor is erected. (c) The 4th floor frame is under construction. (d) After the skeleton is completed, repeat the work in (a). (e) Therefore, the scaffold of the present invention having a ridge structure has extremely high stability because each highly self-supporting mast l is always attached to the frame surface.

FIG. 6 shows a configuration in which the above-described ease of assembly and disassembly of the suspended scaffold 6 by attaching and detaching the horizontal truss 3 can be achieved without the need to bring in a lifting machine, and the - layer is made more convenient. Note that the hanging scaffold 6 is omitted in the figure. That is, as shown in FIG.
As shown in Figure b, at least one end of the horizontal truss 3 can be fixed to the cable 13 so that the horizontal truss 3 can be raised and lowered by operating the electric winch 11. In addition, wires 33 are strung between the upper and lower ends of the opposing lifting masts 1.
5 to ensure the movement of the sliding joints at both ends of the horizontal truss 3 with a lance of /s.

Therefore, the electric winch 11 that the mast 1 owns
Using the power, the horizontal truss 3 can be raised and lowered, that is, the suspended scaffolding 6 can be assembled and dismantled easily and quickly.

[Effects of the Invention] As described above, according to the present invention, the stability of the scaffold during climbing is improved and it is safe, and the assembly and disassembly work is significantly simplified and speeded up, which is extremely suitable.

[Brief explanation of the drawing]

Figure 1 is an overall front view of the lifting type scaffolding unit of the present invention, Figure 2a
, b is the front and side view of the main part of the lifting mast, Fig. 3a
-d is the arrow a% d diagram in Figure 2, Figure 6-w g is C
Detailed view of each component in the figure, FIG. 4a. b is an explanatory view showing how the elevating scaffold of the present invention is used, Figs. 5 a - e are explanatory views of climbing procedures of the elevating scaffold of the present invention, and Figs. 6 a and b are additional configurations in an advanced version of the present invention. FIG. 1... Opposing lifting mast, 2... Vertical gangway, 3
・・・Horizontal truss, 4... Hanging chain, 5...
Scaffolding board, 6... Hanging scaffold 1, 7... Self-standing bracket, 8... Stay metal fittings, 9... Handrail, 10.
...Guide rail, 11...Electric winch, 12
... Sheep, 13... Cable, 14... Intervening sheep, 15... Member, 16... Frame, 17.
...Anchor, 18...Bracket, 19...
Carrying, 20... U groove, 21... Cable stopper, 22... Locking hook, 23... Bracket,
24... Carrying, 25... Sliding stopper, 26
... Locking block, 27 ... Fall prevention cam stopper, 28 ... Locking block, 29 ... Vertical guide ball, 30 ... Holding roller, 31.3
2... Corbel beam, 33... Wire, 34, 3
5... Sheep 36... Curing net. Fuzuren W 1---14ffl-W clear t (3---unnecessary 5i') X 6-=1f3E4IQ-n'
＜gray+y lI-～-Telesen-tsu71te I2-1-shiy'' 13----fE!h
-14-Shi-shishi,zu゛ I5--One round p1 year old 1
7-7>1! -18---Figut 20---υn side 21-4-row stopper 22-': Youfu 7
．． 23---7'lug 7F25-11 no shu 9 et al st-g
X-26---I5Hibg7 27---4 Rare? Neato〃^st 1〆128---i/1. Shima Gerot 7 Go Δ a. a, b. Rikishikaku a, b, c, d
, e.

Claims (2)

[Claims] (1) Between the upper ends of a pair of opposing elevating masts with vertical ramps on the outside, a hanging scaffold consisting of a number of scaffolding boards attached at regular intervals to a hanging chain is erected by bolting a suspended horizontal truss. , the elevating mast has a cable stopper, a locking hook with a fall prevention cam stopper, which is installed on the main body side, and a cable suspended endlessly between the upper sheave attached to the sliding stopper and the lower electric winch. 1. An elevating scaffold comprising a cable made of wire or chain, etc., with a locking block that can be attached and detached, a guide rail made of I-beam steel, and a locking block that can move forward and backward. (2) Between the upper ends of a pair of opposing elevating masts with vertical ramps on the outside, a hanging scaffold consisting of a number of scaffolding boards attached at regular intervals to a hanging chain is erected by bolting a suspended horizontal truss. , the elevating mast has a cable stopper, a locking hook with a fall prevention cam stopper, which is installed on the main body side, and a cable suspended endlessly between the upper sheave attached to the sliding stopper and the lower electric winch. A cable made of wire or chain with a detachable locking block, a guide rail made of I-shaped steel, and a locking block that can move forward and backward are provided, and the connection of the horizontal truss to the lifting mast is on the lifting mast side. A clamping roller brought out from the side of the horizontal truss is attached to a vertical guide pole disposed on the side of the horizontal truss so that it can freely slide vertically, and at least one end of the horizontal truss can be fixed to the endless cable, and further, It is characterized by a smooth elevating mechanism for the horizontal truss with one end supported by a wire stretched between the upper and lower ends of the opposing elevating masts via sheaves placed at both ends of the lower side of the horizontal truss. Elevating scaffolding.