JPH033023B2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention is mainly applicable to the construction of so-called one-story buildings such as steel-framed factories and warehouses.
It relates to temporary scaffolding used for painting, roof construction, and other high-altitude work, and more specifically, it is used for high-altitude work where the scaffold moves in two or three dimensions, for example in the direction between the beams, in the direction of the beams, and in the height direction. This paper relates to a multidimensional moving scaffold that facilitates

(Prior art) Conventionally, as shown in Fig. 17, as a scaffold for work at high places such as a steel frame factory building, a single pipe or the like is used to attach a fastened scaffold a to the building A after the steel frame erection is completed. It was used by hanging it from the ceiling.

Alternatively, as shown in FIG. 18, a movable traveling scaffold b was assembled and used along the inside and outside of the side wall of the building A.

Furthermore, particularly recently, mobile aerial work vehicles c as shown in FIG. 19 have come into widespread use.

(Problems to be Solved by the Invention) However, the rivet scaffolding a shown in FIG.
It takes a lot of time and money to assemble and dismantle. Of course, there were other problems, such as the need to secure skilled workers, the undeniable dangers of working at heights, and the considerable amount of time and cost required for safety measures.

Although the traveling scaffold b in Fig. 18 above has a short span, it has a traveling drive section and H.
Since many heavy objects are used, such as steel frames, large cranes and the like are required to assemble and dismantle them, which makes them very expensive. In addition, since the height of the scaffolding cannot be adjusted, for example, if the beam is particularly large, a higher scaffolding is required above the stage, making it inconvenient to use.

In the case of the elevated work cart c shown in Fig. 19 above, the fastening work on the upper part performed while riding on the work cage cannot be done because the work on the floor (lower part) such as the foundation work of the dirt floor and the machine stand in the factory and other works are combined. ,
The work procedures were poor and the construction period took a long time. Also.
There was a problem with the operation and operation of the high-altitude work trolley c, in that it could not be used without sufficient training.

(Means for Solving the Problems) (First Invention) As a means for solving the above-mentioned conventional problems, a multidimensional movable scaffold for building construction according to the present invention is provided as shown in FIGS. 1 to 16. As shown in the example, (a) First, the lower ends of at least two sets of pillars 1, 1 on the left and right sides, built close to the inner wall of building A, are erected on a common self-propelled trolley 2. However, the trolley 2 was assumed to run on rails 3 laid in the row direction along the inner wall surface of the building.

(b) The two pillars 1, 1 on the left and right sides were connected to the beams 4 and girders 5 in the inter-beam direction and the girder direction to form the main frame of the mobile scaffold.

(c) Traveling in which a rack 7 and a guide rail 8 are installed in the vertical direction along the support 1 or a special support 1' replacing it, and the pinion 9 meshes with the rack 7 and travels along the guide rail 8. ring 1
0, 11 and a lifting device 14 equipped with a position fixing device 12 during work, and a lifting platform 15 was constructed on the pair of left and right lifting devices 14.

(iv) A work stage 26 was installed on the lifting platform 15 to configure it as a two-dimensionally movable type.

(Function) This two-dimensional movable scaffold can move the entire scaffold in the direction of the building A along the direction of the rails 3 by self-propelling the self-propelled cart 2 at the lower end of the pillar 1, and Any desired working position can be adjusted and determined.

In addition, by moving the lifting device 14 up and down, the height of the horizontal lifting platform 15 and, by extension, the height position of the work stage 26 can be adjusted to an appropriate position for high-altitude work, and the position fixing device 12 allows the height of the work stage 26 to be adjusted to an appropriate position for high-altitude work. can be determined and fixed. Such two-dimensional movement allows for flexible work at heights.

(Second invention) As a means to solve the same problem as above, a multidimensional movable scaffold for building construction according to the present invention,
As the examples are shown in Figures 1 to 16, (a) First, the lower ends of at least two sets of pillars 1, 1 on the left and right sides, built along the inner wall of building A, are connected to a common base. It was installed upright on a running trolley 2, and the trolley 2 ran on rails 3 laid in the row direction along the inner wall surface of the building.

(b) The two pillars 1, 1 on the left and right sides were connected to the beams 4 and girders 5 in the inter-beam direction and the girder direction to form the main frame of the mobile scaffold.

(c) Traveling in which a rack 7 and a guide rail 8 are installed in the vertical direction along the support 1 or a special support 1' replacing it, and the pinion 9 meshes with the rack 7 and travels along the guide rail 8. ring 1
0, 11 and a lifting device 14 equipped with a position fixing device 12 during work, and a lifting platform 15 was constructed on the pair of left and right lifting devices 14.

(d) A movable stage 16 was installed on the elevating table 15 so as to be movable in the direction between the beams, and was constructed as a three-dimensional movable type.

(Function) This three-dimensional movable scaffold can move the entire scaffold along the rails 3 in the direction of the building A by self-propelling the self-propelled cart 2 at the lower end of the support column 1. The working position of the machine can be adjusted and determined.

Furthermore, by moving the lifting device 14 up and down, the height of the horizontal lifting platform 15 and, in turn, the height position of the moving stage 16 can be adjusted to an appropriate position for high-altitude work, and the position fixing device 12 allows for the The height can be determined and fixed.

Furthermore, by moving the moving stage 16, the working position in the direction between the beams can be adjusted.

Thus, the moving stage 16 moves X, Y,
Since it is moved in the Z3-dimensional direction, all work at high places in large spaces can be done with a small moving stage 16.

Furthermore, the pillars 1, beams 4, and girders 5 that form the main frame of this mobile scaffolding are made into a lightweight pipe truss structure, and the pipe truss pieces 21 have a modular length and weight that are not inconvenient for manual handling.
By adding and assembling the parts, there is no need for any heavy machinery to assemble and dismantle them.

In particular, the strut 1 is connected to the pipe truss piece 21.
The assembly and disassembly procedure becomes much easier by adding parts and constructing the structure in such a way that it can be assembled higher one by one, or lowered while being disassembled.

The side walls of the building can be worked on using the side work bench 17.

If the beam is particularly large, use the elevated work platform 19 on the moving stage 16 to adjust the height.

If necessary, the lifting platform 15 can be tilted to provide working conditions suitable for, for example, a single-sided roof.

(Embodiment) Next, a preferred embodiment of the present invention shown in FIGS. 1 to 16 will be described.

In the figure, 1 and 1' are erected vertically, 3 on each side, 6 in total, about 2m inside and close to the side wall of steel frame one-story building A (contracted a ₁ ), for which steel frame construction has already been completed. The lower end of each pillar is divided into right and left parts and fixed and erected on a common trolley 2, 2.

The details are shown in Figures 4 and 5.
The three pillars 1 and 1' are spaced approximately 5.7m apart in the column direction.
A horizontal frame 2a made of shaped steel is installed on the frame of a cart 2 which is arranged in equal parts and made of channel steel assembled back to back, and the lower end of the support column 1 is placed and fixed thereon.

The trolley 2 runs on a rail 3 that is laid along the entire length in the row direction along the inner wall surface of the building A (inside the subcontractor _a1 ). For this reason, the trolley 2 is equipped with an electric traveling device 20 and is configured as a self-propelled type.

In this embodiment, the central support 1' is a dedicated support for attaching a lifting device 14, which will be described later.
Therefore, if the lifting device 1 is attached to the two pillars 1 and 1 on both sides,
4, the central support 1' would be unnecessary. Conversely, increase the number of pillars 1 to 3 as necessary.
There is no particular problem with making the number larger than books.

The three pillars 1 on each side are connected to the beams 4 and 5 in the inter-beam direction and girder direction, respectively, so that the main frame of the movable scaffold functions as a box-shaped rigid body. It is configured.

The beam members 4 and the beam members 5 are each installed at intervals of about 4 m in the height direction of the support column 1.

Note that the above-mentioned pillar 1, beam material 4, and girder material 5 all have a lightweight pipe truss structure. Specifically, it is assembled by adding the pipe truss pieces 21 illustrated in FIGS. 6 and 7.

The main material 21a of this pipe truss piece 21 is a single pipe with a module length of 3.4 m and a diameter of about φ48.
Four pieces are placed at each vertex of a square with sides of 500 mm. Then, single pipes of approximately φ21 are joined in a lattice shape as diagonal members 21b to form a box truss structure, and the structure is such that it can be easily handled by hand with a total weight of 16 kg.

Joint flanges 21c are provided at both ends of each main member 21a.
The joint flange 21c can be joined or separated by bolting the joint flange 21c.

The support 1, beam material 4, and girder material 5 are joined by U-shaped bolts using the joint flange 21c, as shown in FIG.

Assembling and disassembling the support 1 is carried out by adding as many pipe truss pieces 21 as necessary and raising the lifting platform 14, which will be described later, or by lowering the lifting platform while disassembling and separating each pipe truss piece 21. Therefore, cranes and other heavy machinery are not required.

Next, the lifting platform 15 is installed between the dedicated central columns 1' and 1' via a rack and pinion type lifting device 14 so as to be able to rise and fall freely.

That is, as shown in detail in FIGS. 9 to 11, groove-shaped steel guide rails 8, 8 are attached to both inner sides of the dedicated support column 1', and a rack 7 is attached to the center thereof.

On the other hand, the lifting device 14 assembled as a flat rigid frame made of channel steel includes running wheels 10 and 11 for receiving reaction force and for steadying, which run along the groove surface of the guide rail 8, and the rack 7. It is equipped with a pinion 9 that meshes with the The pinion 9 is rotationally driven by a reversible rotary electric motor 23 via a predetermined link reduction mechanism, and the lifting device 14 is said to move up and down at a speed of approximately 2 to 10 m per minute. There is.

In the figure, reference numeral 12 denotes a fixture for fixing and supporting the lifting platform 15 at a predetermined height during work, and part of the load during work is transferred from the pinion racks 9 and 7 to this fixture 12. The details of the fixing fitting 12 are as shown in FIG. 11B. It is formed as a fixed tooth 12a that is rotatable about a pin 42 and that engages the rack 7 at one end, and has a weight 44 at the other end.
A fixed state is always obtained by this weight 44, and this is detected by the limit switch 43.
On the other hand, when moving up and down, it is lifted up to the position shown by the two-dot chain line and fixed with a lock pin 45.

In other words, the elevating platform 15 is not intended to be raised and lowered frequently, but is fixed once after being set at a height appropriate for the work on the ceiling and roof by the movable stage 16 relative to the height of the building A, as shown in Fig. 2. When the scaffolding is fixed with the metal fittings 12, almost all work is carried out in this state for a while, so in the end, the lifting platform 15 is lowered one by one in order to dismantle the scaffolding.

A receiver 14a extending inward is formed at the upper end of the lifting device 14, and a receiver 14a with a length of 5 m in the column direction is formed on the receiver 14a.
H-shaped steel 24 (correctly, not limited to H-shaped steel)
is on the shelf.

Then, horizontal members 25, 25, also having a pipe truss structure, are installed at both ends of the H-shaped steels 24, 24 in the pair of left and right lifting devices 14, 14, so that the main frame of the lifting platform 15 is a rigid frame. It is formed as.

In FIG. 1, 16 is a moving stage, and 26 is a fixed work stage, each of which is installed on the lifting platform 15. However, the fixed work stage 26
may be omitted, and the entire work may be performed by the moving stage 16, which is freely movable in the direction between the beams.

The details of the structure of the moving stage 16 are shown in the 12th to 14th sections.
As shown in the figure, rails 27 are installed on the left and right horizontal members 25 of the lifting platform 15, and the rails 27 are
A moving stage 16 is constructed on left and right carts 29, 29 equipped with wheels 28, 28 that run on wheels 28, 28. In the figure, reference numeral 30 denotes safety handrails erected on both sides of the moving stage 16.

A rack 31 is installed on the horizontal member 25 in parallel with the rail 27, and a traveling drive device 33 including a pinion 32 that meshes with the rack 31 is connected to the bogie 29.
The trolley 29 is of a self-propelled type.
The moving stage 16 can be moved at a speed of about 3 m per minute. The size of the moving stage 16 is approximately 5 m x 4 m in vertical and horizontal planar dimensions.

Note that the means for moving the moving stage 16 is not limited to the above-mentioned pinion rack method, but a wire drive method or the like may be adopted for movement.

As shown in FIGS. 1 to 3, on the moving stage 16, for example, a hydraulically driven high-altitude work platform 19
The beams make it easy to work on high areas.

Alternatively, as shown in FIG. 15, the lifting device 1
A receiver 34 is fixedly provided on the H-shaped steel 24 of No. 4, and a movable frame 37 is provided, one end of which is connected to the receiver 34 with a pin 35, and the other end is fixed in position with a positioning bolt 36. The horizontal member 25 is installed on the platform 37, and the elevating platform 15 (the horizontal member 25)
If it is possible to tilt within the angle range of about 3/10, it will be convenient to take a working posture that follows the slope of the roof.

The handrails 30 of the movable stage 16 and fixed stage 26 have their lower ends attached to the bracket 4
0 with a pin 41 so that it can be raised and lowered freely, and a pin 43 is passed through a positioning plate 42 to maintain the upright position.

That is, this handrail 30 can be used as a work floor by tilting it outward. On the other hand, when moving the moving stage 16, it is tilted inward to avoid obstacles.

Reference numeral 17 in FIG. 2 is a side workbench that can be raised and lowered in a linked manner, and when lifted upward by a winch 46 and raised as shown by the two-dot chain line in FIG.
Eliminate obstacles in the movement of scaffolding in the column direction.
On the other hand, by tilting it horizontally outward as shown by the solid line, it can be used for various types of work on the walls of building A and subcontractor _a1 .

Reference numeral 38 in FIG. 2 denotes a ladder that can be hoisted up and down by a winch 40. This ladder 38 is used for climbing up and down the stages 16 and 26. Reference numeral 41 in FIG. 2 is a steady rest for the lifting platform 15 during work.

(Effects of the Invention) As described in detail above in conjunction with the embodiments, the multi-dimensional movable scaffold of the present invention has a structure in which the work stage 26 or the movable stage 16 is two-dimensional or three-dimensional.
Since it moves in the dimensional direction and provides the work scaffold necessary for constructing the building at the optimal work position, the size (scale) of the scaffold itself can be relatively reduced to a certain extent. Therefore, it is not necessary to crowd the inside of a large building with temporary scaffolding, and the space can be used effectively and the work efficiency of building construction can be improved. Moreover, since the upper part work and the lower part (on the floor) work can be done together, construction time can be expected to be significantly shortened.

Even if the dimensions of the roof (lower end of the truss) or beams change slightly, the height of stages 16 and 26 can be adjusted.
Alternatively, it can be widely used by using the elevated work platform 19, and there is no need to frequently change the scaffolding.
No unnecessary effort.

All scaffolding changes (movement, height adjustment) can be done automatically, resulting in high construction efficiency.

As mentioned above, since the size of the scaffold can be limited to a certain degree, the absolute amount of assembly and disassembly of the scaffold can be reduced accordingly. Furthermore, most of the assembly and disassembly can be done manually, so there is no need for large cranes and costs are low. In addition, the work is easy and the construction period is short.

[Brief explanation of the drawing]

Figures 1 to 3 are a partially omitted plan view, front view, and side view of the three-dimensional movable scaffold of the present invention, and Figures 4 and 5 are views of the lower part of the support and the traveling device. A front view and a side view showing the details of the relationship, Figures 6 and 7 are a front view and a side view of the pipe truss piece,
Figure 8 is a detailed view showing the joint between the support and beam by the pipe truss piece, Figures 9 to 11A are front and side views showing details of the lifting device, and XI-XI
Cross-sectional view, Figure 11B is a detailed view of the fixing fittings, Figure 12
Fig. 14 is a plan view, front view, and side view showing details of the moving stage, Fig. 15 is a front view showing the relationship between the lifting device and the horizontal member, and Fig. 16 is the handrail attachment structure. 17 to 19 are front views showing details of the conventional example.

Claims (1)

[Scope of Claims] 1 (a) The lower ends of at least two pillars 1, 1 each erected close to the inner wall surface of building A are erected on a common self-propelled trolley 2, and the trolley 2 is supposed to run on rails 3 laid in the girder direction along the inner wall surface of the same building A, and (b) the two columns 1, 1 on the left and right are the beams in the inter-beam direction and in the girder direction. (c) The racks 7 and the guide rails 8 are installed in the vertical direction along the pillars 1 or the special pillars 1' in place of the pillars 1. A pinion 9 is installed and meshes with the rack 7, and a running wheel 1 runs along the guide rail 8.
0, 11 and a lifting device 14 equipped with a fixing device 12 during work, and a lifting platform 15 is constructed above the pair of left and right lifting devices 14; A multi-dimensional movable scaffold for building construction, characterized by having 26 installed. 2 (a) The lower ends of at least two pillars 1, 1 erected close to the inner wall of building A are erected on a common self-propelled trolley 2, and the trolley 2 is installed close to the inner wall of building A. It runs on rails 3 laid in the girder direction along the inner wall surface. (c) A rack 7 and a guide rail 8 are installed in the vertical direction along the pillar 1 or a dedicated pillar 1' in place of the pillar 1, and the rack 7 A pinion 9 meshing with the wheel 1 and a running wheel 1 running along the guide rail 8.
0, 11, and a lifting device 14 equipped with a fixing device 12 during work, and a lifting platform 15 is installed on the pair of left and right lifting devices 14; A multi-dimensional movable scaffold for building construction, characterized in that scaffolds 16 are installed so as to be movable in the direction between the beams. 3. The support column 1, the beam member 4, and the girder member 5 described in claim 2 each have a pipe truss structure, and are assembled by adding modular length pipe truss pieces 21. Dimensional moving scaffolding. 4. A multidimensional movable scaffolding characterized in that the support 1 and the movable stage 16 described in claim 2 are each equipped with a side work platform 17 that can be raised and lowered outwardly, and a stage upper handrail 30. . 5. A multidimensional movable scaffold characterized in that the movable stage 16 according to claim 2 or 4 is equipped with an elevated work platform 19 that can be raised and lowered. 6 Lifting device 1 described in claim 2
4 and the lifting platform 15 are connected by pins that can be tilted freely.