JPH10292618A - Working scaffolding for wall construction work - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dispense with high lift work for building up and removing a scaffolding so as to improve the operating rate of the scaffolding by fitting automatic elevating devices to the scaffolding formed of a grated frame, and elevating the scaffolding along the guide rails fitted to the wall surface. SOLUTION: A scaffolding 1 formed of a grated frame having a plurality of working floors and provided with an accommodation ladder 4, an elevating opening cover, and the like is provided with automatic elevating devices 2 on both lateral sides, and guide rails 8 are vertically fitted along an exterior wall through brackets embedded in the exterior wall. The automatic elevating devices 2 have ratchet claws alternately inserted in square holes formed in the guide rails 8, and elevate the scaffolding 1 in a measuring worm form by hydraulic cylinders. When an exterior wall form is fitted and fixed to the scaffolding, the exterior wall form can be moved up at the same time. Accordingly, every time the exterior wall on the upper floor is constructed in regular order, the guide rails 8 are fitted to the exterior wall to move up the scaffolding 1, and the scaffolding 1 is moved down in regular order to detach the guide rails 8. Work of building up and removing the scaffolding 1 is therefore dispensed with.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a wall (inner wall / outer wall)
Related to work scaffolding for construction.

[0002]

2. Description of the Related Art A framework scaffold is used at a construction site as a scaffold for work at a high place in wall construction. Fig. 2
7 is a combination of the framework scaffolding units 21 as shown in the framework scaffold configuration diagram of FIG.

[0003] One unit of the framed scaffold is a structure in which two building frames 22 are arranged in parallel, a cross bracing 23 is attached, and a cloth frame 24 is laid over the building frame 22. This operation is repeated, and arm locks, stairs 25, lintels, handrails, and the like are attached to form the entire framework scaffold 20 of FIG.

[0004]

The above-mentioned assembling of the framework scaffolding and disassembly when it becomes unnecessary is performed manually and is performed at a high place, and there are many personal injuries due to accidents of falling workers. In addition, gusts and strong winds at high altitudes can cause loss of balance during work, leading to a crash. Also, the framework scaffold is
Although it is necessary to bridge the entire wall for work, if the type of wall construction is small and the amount of construction is small, the operation rate of the scaffold is poor and the cost of the framework scaffold is expensive. However, even if the type of construction and the amount of construction are small, work cannot be done without scaffolding, so it cannot be stopped.

Accordingly, the present invention eliminates the danger of assembling and disassembling (disassembling) the scaffold, thereby eliminating the need for assembling and disassembling operations at a high place, saving labor, and increasing the operating rate of the scaffold. It is an object of the present invention to provide a work scaffold capable of reducing a scaffold cost.

[0006]

According to the present invention, an automatic elevating device is attached to a frame unit having a plurality of frames having a plurality of working floors arranged in a line, and the vertical movement of the frame unit and the automatic elevating device is supported. Work scaffolding for wall construction, consisting of guide rails attached to the wall that guides the work. Further, as the framework unit, a lattice-shaped framework in which an operator can stand on the floor and work on one layer, and a plurality of layers are formed on the floor and a plurality of rows are arranged in the horizontal direction is preferable. Further, it is preferable to provide a passage door on both sides of the lattice frame.
Also, as the automatic lifting / lowering device, a hydraulic lifting / lowering type which includes a pair of upper and lower ratchet units and in which ratchet claws of each ratchet unit alternately enter square holes formed in the guide rail is preferable.

Further, according to the present invention, a formwork of an outer wall is attached to and fixed to the work scaffold, and the scaffold and the formwork can be simultaneously raised to an upper stage. Further, the guide rail can be shortened, and the scaffold unit and the rail can be alternately raised and lowered.

According to the present invention, the scaffold can be automatically moved up and down by the automatic elevating device, the labor and labor for assembling and disassembling the scaffold at a high place can be eliminated, and the operation efficiency of the scaffold can be increased. Cost can be reduced.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 to 4 show a plurality of layers (five layers in the illustrated example) on which a worker can stand on a floor and work on one floor. A scaffold 1 composed of a grid-like framework arranged in rows (three rows in the illustrated example) is shown. A pair of left and right automatic elevating devices 2, which will be described in detail later, are attached to the scaffold 1 made of the lattice-shaped framework. A scaffold 1 composed of a lattice frame is provided with a ramp 4, an opening lid 5, and the like. In the figure, reference numeral 5a denotes a door for an operator to move to an adjacent lattice frame.

As shown in FIGS. 5 and 6, an anchor bolt 6 is embedded in an outer wall T, and a guide rail 8 is provided vertically along the outer wall T via a bracket 7.

FIG. 7 shows an example of the automatic elevating device 2, which includes a pair of upper and lower ratchet units 9A and 9B, and the ratchet pawls 10 of the ratchet units 9A and 9B are operated by a switching knob (not shown) to operate the guide rail 8. Are alternately inserted into square holes (not shown) formed in the above, and ascend and descend by a pair of left and right hydraulic cylinders 11A and 11B in the form of a measuring insect, and are well known per se.

In FIG. 4, the doors 5a are provided on both sides of the scaffold 1. However, when the worker moves between two scaffolds provided on the orthogonal outer wall, one of the scaffolds projects from the outer wall. And a door may be provided on the back of the protruding portion of the scaffold.

Next, referring to FIGS. 8 to 15, a description will be given of a mode of automatic lifting and lowering of the scaffold.

(1) Assemble with the automatic elevating scaffold 1 lying on the ground.

(2) An automatic elevating scaffold (hereinafter, referred to as a scaffold) 1 is installed vertically on the ground, an outer wall formwork 12 on the first floor for constructing a first-floor structure is removed, and the second floor is approached by the elevating device 2. increase. (Fig. 8) (3) Lift the guide rail 8 using the scaffold 1,
It is connected to the bracket 7 of the anchor bolt 6 for rail mounting embedded in the outer wall T of the first floor in advance and attached to the outer wall T of the first floor. (Fig. 8) (4) Formwork installation, rebar installation, concrete casting, etc. are performed to construct a building of the outer wall T on the second floor. Exterior wall formwork 1 on the second floor
2 rises to the 3rd floor. An anchor bolt 6 is embedded in the outer wall T of the second floor. (Fig. 9) (5) Attach the guide rail 8 to the outer wall T on the second floor.
The scaffold 1 is raised by the automatic elevator 2 for one floor, using the guide rails 8 on the first and second floors as a foothold. (FIG. 10) (6) The structure of the outer wall T on the third floor is constructed. The outer wall formwork 12 rises to the fourth floor. (FIG. 11) (7) Attach the guide rail 8 to the outer wall T on the third floor.
Using the guide rails 8 on the third and third floors as a foothold, the scaffold 1 is raised by the automatic elevator 2 for one floor. (FIG. 12) (8) Hereinafter, the same operations as in FIG. 13, FIG. 14, and FIG. 15 are repeated to sequentially build the upper structure, and the scaffold 1 is automatically raised by the lifting device 2.

(9) After constructing the structure of all layers, the scaffold 1 is raised and lowered by using the rail 8 as a guide, so that the outer wall T
Finishing work (outside wall work such as repair of exterior wall concrete, painting, and tiling). The guide rail 8 is installed until the outer wall construction is completed. (10) After the outer wall construction is completed, a person gets on Scaffold 1,
The rail 8 on the top floor is removed from the outer wall T, and the rail 8 is lowered to the ground by a loading / unloading device such as a winch installed on the scaffold 1.

(11) The scaffold 1 is automatically lowered by one layer to remove the rail 8 for one layer.

(12) The rails 8 are removed while sequentially repeating the steps, and the scaffold 1 is lowered to the ground floor.

(13) The scaffold 1 lowered to the ground floor is
Lay it horizontally on the ground and dismantle it and carry it out of the venue.

Further, the outer wall form 12 is attached and fixed to the scaffold 1, and the scaffold 1 and the form 12 can be simultaneously raised to the upper stage. FIGS. 16 to 18 show a unit scaffold 1A with a formwork for that purpose.

The formwork 12 is mounted at the height of one floor above the scaffold 1. After constructing the structure on the top floor, the unnecessary outer wall formwork 12 is removed, and the scaffold 1 is used exclusively for finishing work.

FIGS. 19 to 26 show the procedure for automatically lifting and lowering the unit scaffold 1A with a formwork. However, the procedure for lifting and lowering the scaffold unit 1 is substantially the same as that described above, and a detailed description thereof will be omitted. A method is also possible in which the length of the guide rail is shortened and the scaffold unit and the rail are alternately moved up and down.

[0023]

According to the present invention, the scaffold moves up and down automatically, eliminating dangerous work of assembling and disassembling (disassembling) the scaffold at a high place, saving labor and increasing the operating rate of the scaffold. The scaffold cost can be reduced. The scaffold of the present invention is useful as a scaffold for performing cast-in-place reinforced concrete construction for assembling formwork, assembling rebar, and placing concrete on site, and for scaffolding for finishing external walls after a structural frame is completed. Demonstrate. It is also suitable as a scaffold for high-rise or super-high-rise buildings with ten or more floors in reinforced concrete buildings. That is, the risk of assembling and disassembling the framework scaffold increases as the height increases, and the work may become impossible.

[Brief description of the drawings]

FIG. 1 is a perspective view of a scaffold unit.

FIG. 2 is a front view of the scaffold unit.

FIG. 3 is a side view of the scaffold unit.

FIG. 4 is a plan view of the scaffold unit.

FIG. 5 is a plan view of a rail bracket.

FIG. 6 is a side view of the rail bracket.

FIG. 7 is a front view of the lifting device.

FIG. 8 is a first stroke diagram showing a climbing process of the scaffold.

FIG. 9 is a second stroke diagram showing a climbing stroke of the scaffold.

FIG. 10 is a third stroke diagram showing a climbing process of the scaffold.

FIG. 11 is a fourth stroke diagram showing a climbing process of the scaffold.

FIG. 12 is a fifth stroke diagram showing a climbing stroke of the scaffold.

FIG. 13 is a sixth stroke diagram showing a climbing process of the scaffold.

FIG. 14 is a seventh stroke diagram showing a climbing process of the scaffold.

FIG. 15 is an eighth stroke diagram showing a climbing process of the scaffold.

FIG. 16 is a front view of a scaffold unit with a formwork.

FIG. 17 is a side view of a scaffold unit with a formwork.

FIG. 18 is a plan view of a scaffold unit with a formwork.

FIG. 19 is a first stroke diagram showing a rising stroke of the scaffold with a formwork.

FIG. 20 is a second stroke diagram showing a rising stroke of the scaffold with a formwork.

FIG. 21 is a third stroke diagram showing a rising stroke of the scaffold with a formwork.

FIG. 22 is a fourth stroke diagram showing a rising stroke of the scaffold with a formwork.

FIG. 23 is a fifth stroke diagram showing a rising stroke of the scaffold with a formwork.

FIG. 24 is a sixth stroke diagram showing a rising stroke of the scaffold with a formwork.

FIG. 25 is a seventh stroke diagram showing a rising stroke of the scaffold with a formwork.

FIG. 26 is an eighth stroke diagram showing a rising stroke of the scaffold with a formwork.

FIG. 27 is a front view of a framework scaffold unit constituting a conventional framework scaffold.

FIG. 28 is a front view of a conventional framework scaffold.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Scaffold 2 ... Elevating device 3 ... Door 4 ... Trap 5 ... Opening lid 6 ... Anchor bolt 7 ... Bracket 8 ... Rail 9A, 9B ... Ratchet Unit 10: Ratchet claw 11A, 11B: Hydraulic cylinder 12: Outer wall form

Claims (5)

[Claims] An automatic elevating device is mounted on a frame unit in which a plurality of frames having a plurality of working floors are arranged in a row, and a guide rail mounted on a wall for guiding the vertical movement while supporting the load of the frame unit and the automatic elevating device. A work scaffold for wall work, characterized by comprising. 2. The frame unit is a lattice-shaped frame in which a worker can stand on the floor and work at a height by one layer, a plurality of floors are formed on the floor, and a plurality of rows are arranged in a horizontal direction. The work scaffold for wall construction according to claim 1. 3. The work scaffold according to claim 2, wherein doors for passages are provided on both sides of the lattice frame. 4. The automatic lifting device according to claim 1, wherein the automatic lifting device comprises a pair of upper and lower ratchet units, and a hydraulic lifting system in which ratchet claws of each ratchet unit alternately enter square holes formed in the guide rail. Work scaffolding for wall construction as described in. 5. The work scaffold for wall work according to claim 1, wherein a formwork is attached and fixed to a framework unit constituting the scaffold.