JPS62101755A - Multidimensional moving type scaffold for constructing building - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention is suitable for use in construction of new buildings, renovation of existing buildings, repair work, replacement of equipment, etc., and other high-altitude work in both small and large spaces. The present invention relates to a temporary scaffold that can be used for construction, and more particularly to a multidimensional movable scaffold that allows one scaffold to move in two or three dimensions in the inter-beam direction, column direction, and height direction to facilitate work at heights.

(Conventional technology) Conventionally, as shown in Fig. 22, scaffolding for work at high places used for constructing or renovating steel-framed factory buildings, etc., has been constructed using single pipes, etc., that are tightened with rivets after the steel frame has been erected. Scaffold A was suspended from the ceiling of Building A.

Alternatively, as shown in Figure 23, movable scaffolding was assembled and used along the inside and outside of the side walls of Building A.

Furthermore, especially recently, mobile aerial work vehicles C as shown in Figure 24 have come into widespread use. (Problems to be solved by the invention) Stud scaffolding A is manually assembled by skilled workers who work at heights, and must be assembled on the entire surface of Building A, so it takes a lot of time and money to assemble and dismantle it.Of course, it is necessary to secure skilled workers, and the The danger of work at the site cannot be denied, and the construction period required for safety measures.
The problem was that the cost was prohibitive.

■ Although the traveling scaffold shown in Figure 23 has a short span, it uses a lot of ff1ffi materials for the traveling drive unit, H-steel booms, etc., so it takes a large amount of work to assemble and dismantle them. It required a crane, etc., and was accordingly 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 difficult to use.

■ In the case of the elevated work trolley C shown in Figure 24 above, the upper part fastening work carried out on the work cage, the earthen floor work on the floor (lower part), the factory machine platform foundation work, and other lower part work are wrapped. Because this was not possible, the work procedures were poor and the construction period took a long time. Also. Regarding the operation and operation of the aerial work cart C, there was a problem in that it could not be used without sufficient training.

Means for Solving the Problem (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.
As shown in the example in Figure 2, (a) First, the lower ends of at least two sets of columns (1) and (1), erected in building A, on the left and right sides, are connected to a traveling trolley (2).
) was erected in the north.

(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 in the girder direction to form the main frame of the mobile scaffold.

(c) The above-mentioned support (1) or a dedicated support (1'
) and the rack (7) and guide rail (
8) and a pinion (9) that meshes with the rack (7).
), running wheels (10) (11) running along the guide rail (8), and a position fixing device (12) during work.
A lifting device (14) equipped with a lift device (14) was installed, and a lifting platform (15) was constructed on the hills of the pair of left and right lifting devices (14).

(d) A work stage (26) was installed on the lifting platform (15), thereby constructing a two-dimensionally movable type.

(Function) This two-dimensional movable scaffolding is constructed by running the traveling trolley 2 at the lower end of the pillar 1 on the floor 3 of building A (including not only the first floor but also the upper floors). The whole unit can be moved to cover the entire width of the floor surface 3, and any desired working position can be determined. Therefore, it is suitable for construction or repair of small space and large space buildings.

Furthermore, 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. The height can be determined and fixed. That is, such two-dimensional movement allows work at heights to be performed freely.

(Second invention) As a means for solving the same problem as above, a multidimensional moving scaffold for building construction according to the present invention is provided, as examples of which are shown in FIGS. 1 to 22 ( b) First, move the lower ends of at least two sets of pillars (1) (1) and (1) erected in building A on the left and right sides to the traveling trolley (2).
).

(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 in the girder direction to form the main frame of the mobile scaffold.

(c) The above-mentioned support (1) or a dedicated support (1'
) and the rack (7) and guide rail (
8) and a pinion (9) that meshes with the rack (7).
), the running wheels (10) (11) running along the guide rail (8), and the position fixing device (1) during work.
Lifting device equipped with 2)! t(i4) was installed, and a lifting platform (15) was constructed on a pair of left and right lifting devices (14).

(d) Then, a movable stage (16) is installed on the lifting platform (15) so as to be movable in the direction between the beams.
It was configured as a dimensional movement type.

(Function) This three-dimensional mobile scaffolding allows the traveling trolley 2 at the lower end of the pillar 1 to run on the floor 3 of building A (including not only the 1st floor but also the L floor). The entire scaffold can be moved in the direction of the building to define any desired working position.

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 moving stage 18 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 inter-beam direction can also be adjusted.

Since it is moved in the dimensional direction, the small moving stage 16 can be used for all work at heights in small spaces as well as large spaces.

Moreover, the pillars 1 and the beams 41 and 5 forming the frame of this mobile scaffolding are made into a lightweight pipe truss structure, which is assembled by adding pipe truss pieces 21 of module length that are easy to handle by hand. Therefore, no heavy machinery is required for its assembly and disassembly. In particular, the procedure for assembling and disassembling is greatly improved by constructing the strut l so that it can be assembled and disassembled and lowered one after another by adding the pipe truss pieces 21.

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

In addition, if the beam is particularly large, move stage 1
6, , 41 are used to adjust the height and work.

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

(Example) Next, a three-dimensional movable scaffold will be described as a preferred example of the present invention shown in FIGS. 1 to 21.

In the figure, 1.1' is a column vertically erected in the vicinity of the side wall (outer column a1) of the steel frame one-story building A, three on each side, a total of six columns on the left and right. They are divided into groups and fixed and erected on a traveling trolley 2.2 that runs on the floor 3.

The details are shown in Figures 4 and 5. Three pillars 1 and 1' are erected at intervals of about 2 cm in the row direction, and the running bogie 2 is made of channel steel assembled back to back. The lower end of the support column 1 is fixed onto the upper horizontal frame 2a made of shaped steel.

The traveling trolley 2 has, for example, solid tire type wheels 51 that run on the floor 3 of the building A, and is configured to be self-propelled by an electric drive device 20.

By the way, for the traveling movement of this mobile scaffolding, it is important to have maneuverability to efficiently move it on the floor surface 3 to a target position. Therefore, a running wheel device with steerability that can be applied to such a heavy object will be described below.

17 and 18 show examples using W type solid tires, in which a pair of solid tire type running wheels 51.51 are attached to a common axle 62. A rotary shaft 53 is provided vertically upward at approximately the center of the upper surface of the bearing box 52 that supports the central portion of the axle 62, and the running wheel 51 is connected to the supporting column (1 or 1') of the moving scaffold via this rotary shaft 53. It is attached under the frame 55 at the lower end.

That is, the rotary shaft 53 is fixedly provided with a pressure receiving plate 63 whose - part is used for steering and which is extended as 8-63a.
3, a lower retainer 64 of the thrust bearing is installed. On the other hand, an upper retainer 65 is installed on the lower surface of the pedestal 55, and a pole 66 is sandwiched between the retainers 64 and 65 to form a thrust bearing, thereby allowing the rotary shaft 53 to rotate freely.

Further, as shown in FIG. 19, the lower retainer 64 has an angle adjusting plate 56 arranged around the rotating shaft 3, in which a large number of pin holes 69 are formed in a circular plate with a rotation angle of lO0. It is attached with. A positioning plate 70 is also attached to the upper retainer 15, and the direction of the running wheel 51 is fixed by a positioning pin 71 that is passed through the positioning plate 70 and inserted into the pin hole 69 of the angle adjustment plate 56.

In the figure, 58 is a drive device whose power source is a motor 58a with a brake attached to the lower surface of the steering lever 63a.
A small gear 58b on the motor shaft is meshed with a gear 72 on the axle 62.

In the figure, reference numeral 57 denotes a jack installed vertically downward under the frame 55, and its output shaft 57a operates a stroke sufficient to lift the running wheel 51 above the floor surface 59.

In the figure, 73 is a handle attached to the steering lever 63a.

Therefore, when it is necessary to change the direction of the running wheel 51,
The output shaft 57a of the jack 57 is extended, and the running wheels 51 together with the props 1 of the moving scaffold are lifted off the floor surface 59. Then, the user pulls out the first positioning pin 71, grasps the handle 73 of the steering lever 63a, rotates the lever 63a to a desired angle, and changes the direction of the wheel 51. Thereafter, the positioning pin 71 is inserted again to fix the direction of the running wheel 51, and the jack 57 is retracted so that the running wheel 51 lands on the floor 59.

The motor 58a with a brake is started to run as a self-propelled vehicle. The stopping position is fixed by applying the brake.

Alternatively, as shown in FIGS. 20 and 21, a group of steel rollers 82 arranged in parallel and connected by a chain like a caterpillar are wound around a surface plate 81 fixed to a support frame 80. A running wheel device with wheels is also applicable.

A pole 83 is housed in a circular guide groove approximately at the center of the upper surface of the support frame 80, and a rotary plate 84 is mounted on the hill thereof. Recesses 87 are provided at a constant angular pitch on the peripheral edge of the support frame 80 to allow a retainer 86a of a rotation stopper 86 fixed to the support frame 80-A to move in and out.

The upper end of #+85 is attached below the frame 55 of the prop 1 or 1' of the moving scaffold.

Therefore, in the case of this embodiment as well, when it is desired to change the running direction, the jack 57 is extended and the roller group 82...
is lifted off the floor, the support frame 80 is rotated to a desired angular position, and the position is fixed with a positioning stopper 86. Thereafter, the jack 57 is retracted to cause the roller group 82 to land.

In addition, if you want to use a self-propelled system, use the roller group 82...
・Attach a drive device to drive the.

In addition, although not shown in the drawings, it is also possible to employ running wheels made of rubber, plastic, or rigid caterpillars.

Next, the central support 1' in FIG. 4 is a dedicated support for attaching a lifting device 14, which will be described later, in this embodiment.

Therefore, if the lifting device 14 is attached to two columns 1.1 on both sides, the dedicated column 1' in the center is unnecessary. On the other hand, the number of pillars l may be increased to three or more as necessary.

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 mobile scaffold forms a box-shaped rigid body. It is configured.

The beam material 4 and the girder material 5 are each about 4 in the height direction of the support l.
They are installed at intervals of m.

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.

This pipe truss piece 21 has a module length of 3.
The main material 21a is a 4 m long single pipe with a diameter of about φ48, and four of these are arranged at each vertex of a square with a side of 500 cm. Then, single pipes of about φ21 are joined in a lattice shape as diagonal members 21b to form a box truss structure, and the total weight is 18 kg, making it easy to handle by hand.

Joint flanges 21c are attached to both ends of each main member 21a, and the joint flanges 21c can be joined or separated by bolt connection.

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

The support 1 is assembled by adding as many pipe truss pieces 21 as necessary and raising the lifting platform 15 described later, and disassembly is performed by lowering the lifting platform 15 while disassembling and removing each pipe truss piece 21. Therefore, cranes and other heavy machinery are not particularly required.

Next, the lifting platform 15 is a rack and pinion type lifting device]4
It is installed between the dedicated central pillars 1' and 1'' via the central pillars 1' and 1'' so that it can be raised and lowered freely.

That is, as shown in detail in FIGS. 9 to 11, the dedicated support 1
A channel-shaped steel guide rail 8.8 is attached to both sides of the frame, and a rack 7 is attached to the center thereof.

On the other hand, the lifting device 14, which is assembled as a rigid frame made of channel steel, includes running wheels 10.11 for reaction force receivers and steady rests that run along the grooves 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 speed reduction mechanism, so that the elevating device 14 is raised and lowered at a speed of about 2 to 10 m per minute.

12 in the figure is a position fixing device 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 rack 9.7 to this position fixing device 12. It will be done.

The details of the position fixing device 12 are, as shown in FIG. 1B, rotatable around a pin 42, and one end formed as a fixed tooth 12a that engages the rack 7. A weight 44 is provided at the other end, and the position is always fixed by the weight 44, which is detected by the limit switch 43.

On the other hand, when moving up and down, it is lifted to the position shown by the two-dot chain line and fixed with the lock pin 45.

The lifting platform 15 is not intended to be raised and lowered frequently; for example, as shown in FIG. If it is fixed at 12, almost all the work will be carried out in this state for a while. The only opportunity to go up and down is to lower the elevator platform 15 one after another in order to finally dismantle the scaffolding.

At the upper end of the lifting device 14, there is a receiver 14a projecting inward.
on top of which is an H-shaped steel 2 with a length of about 5 m in the column direction.
4 (however, this is not limited to H-beam steel).

Horizontal members 25.25, which also have a pipe truss structure, are installed at both ends of the H-shaped steel 24.24 in the pair of left and right lifting devices 14.14, so that the main frame of the lifting platform 15 functions as a rigid frame. It is formed.

In FIG. 1, 18 is a moving stage, and 2B is a fixed work stage, each of which is installed on the lifting platform 15.

However, in the case of a three-dimensional movable type, the work stage 26 is omitted and all work is performed on the movable stage 11 that can move freely in the direction between the beams.
It is also possible to have a structure where it is covered by

As shown in FIGS. 12 to 14, the details of the structure of the moving stage 16 include a rail 27 installed on the left and right horizontal members 25 of the lifting platform 15, and wheels 28 and 28 running on the rail 27. A moving stage 18 is installed on the left and right carts 28 and 29. 30 in the figure is the moving stage 1
Safety handrails erected on both sides of 6.

A rack 31 is installed on the horizontal member 25 in parallel with the rail 27, and a travel drive device 33 including a pinion 32 that meshes with the rack 31 is installed on the truck 28.
is said to be self-propelled. The moving stage 16 moves 3 times per minute.
It can be moved at a speed of about m.

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 pinion rack method described above, and a wire drive method using a winch or the like may be adopted for movement.

As shown in FIGS. 1 to 3, above the moving stage 1, for example, a hydraulically driven high-altitude work platform 19 is installed, making it easy to work on areas with high beams. .

Alternatively, as shown in FIG. 15, a receiver 34 is fixedly provided on the H-shaped steel 24 of the lifting device 14, and one end is connected to the receiver 34 with a pin 35, and the other end is connected with a positioning bolt 38.
A movable frame 37 whose position is fixed is provided, and this movable frame 37
By erecting the horizontal member 25 on top and making it possible to tilt the lifting platform 15 (the horizontal member 25 of it) in an angle range of about 0 to 3710, it is possible to take a working posture that follows the slope of the roof. It's very convenient.

Handrails 3 of the movable stage 16 and fixed work stage 26
As shown in FIG. 18, the lower end of the bracket 40 is attached to a bracket 40 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 link-type side work platform that can be raised and lowered, and when it is hoisted in the E direction by a winch 46 and raised as shown by the two-dot chain line in Fig. Eliminate obstacles. On the other hand, by tilting outward horizontally as shown by the solid line, it can be used as a scaffold for various operations necessary for the walls and exterior columns a1 of the building A.

In FIG. 2, 38 is a ladder that can be hoisted up by a winch 4o and whose a'FL can be adjusted freely. This ladder 38 is used for climbing up and down to stage 16.2. Reference numeral 41 in FIG. 2 indicates a steady rest for the H platform 15 during work.

(Effects of the Invention) ■ As described above in detail in conjunction with the embodiments, the multidimensional movable scaffold of the present invention has a structure in which the work stage 26 or the movable stage 16 moves in two or three dimensions, This allows us to provide the work scaffolding necessary for construction, repair, and renovation of buildings in the optimal location for the work, regardless of the size of the space.
Relatively speaking, the size and scale of the scaffold itself can be reduced to some extent. Therefore, it is not necessary to crowd the inside of a large building with temporary scaffolding, the space can be used effectively, and work efficiency in constructing a new building or repairing or renovating an existing building can be improved. Moreover, the upper part work and the lower part (
Since the work (on the floor) can be done by wrapping at the same time, the construction period can be expected to be significantly shortened.

■ Even if the dimensions of the roof (lower end of the truss) or the size of the beams change slightly, this can be accommodated by adjusting the height of the stage 16, 26 or by using the elevated work platform 19, eliminating the need to frequently change the scaffolding. Yes, so you don't have to waste time.

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

■As mentioned in (■) above, since the size of the scaffold can be limited to a certain degree, the absolute amount of scaffold assembly and disassembly 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 drawings]

Figures 1 to 3 are a partially omitted plan view, front view, and side view of a three-dimensional movable scaffold that is an embodiment of the present invention, and Figures 4 and 5 are a view of the lower part of the support column. A front view and a side view showing the details of the relationship with the traveling device, Figures 6 and 7 are a front view and a side view of the pipe truss piece, and Figure 8 shows the joint between the support and beam by the pipe truss piece. Detail shown, 1st
Figures 14A to 14A are front and side views and cross-sectional views along XI-XI showing details of the lifting device, Figure 11B is a detailed view of the position fixing device, and Figures 12 to 14 are details of the moving stage. Fig. 15 is a front view showing the relationship between the lifting device and the horizontal member, Fig. 18 is a front view showing the details of the structure for installing the handrail, Figures 17 and 18 are front and side views showing the steering wheel device, Figure 19 is a plan view of the angle adjustment plate, and Figures 20 and 21.
Figure 22 is an exploded perspective view of a different steered running wheel device.
24 are explanatory diagrams of conventional examples. Applicant Takenaka Corporation Patent Attorney Masahiko Yamana Figure 16 Figure 18 Figure 19

Claims (1)

[Scope of Claims] [1] (a) At least two pillars (1) on the left and right sides (1) erected inside the building (A).
) are attached, and (b) the two pillars (1) on the left and right sides are connected to the beams (4) and girders (5) in the inter-beam direction and girder direction to form the main structure of the mobile scaffold. (c) A rack (7) and a guide rail (8) are arranged vertically along the pillar (1) or a dedicated pillar (1) in place of it.
, a pinion (9) that meshes with the rack (7), and a running wheel (1) that runs along the guide rail (8).
0) (11) and a lifting device (14) equipped with a position fixing device (12) during work is installed, and a lifting platform (15) is constructed on the pair of left and right lifting devices (14). ) A multidimensional movable scaffold for building construction, characterized in that a work stage (26) is installed on the lifting platform (15). [2] (A) At least two pillars (1) on the left and right erected inside the building (A). A running trolley (2
) are attached, and (b) the two pillars (1) on the left and right sides are connected to the beams (4) and girders (5) in the inter-beam direction and girder direction to form the main structure of the mobile scaffold. (c) The pillar (1) or a dedicated pillar (1') in place of it
Rack (7) and guide rail (8) vertically along
) and a pinion (9) that meshes with the rack (7).
and a running wheel (
10) A lifting device (14) equipped with (11) and a position fixing device (12) during work is installed, and a lifting platform (15) is constructed on the pair of left and right lifting devices (14). ) A multidimensional movable scaffold for building construction, characterized in that a movable stage (16) is installed on the elevating platform (15) so as to be movable in the direction between the beams. [3] The strut (1), beam member (4), and girder member (5) described in claim 2 each have a pipe truss structure, and are made by adding module-length pipe truss pieces (21). A multidimensional movable scaffold characterized by being assembled. [4] The support column (1) and the moving 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). A multi-dimensional mobile scaffolding characterized by: [5] A multidimensional movable scaffold, wherein 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] The lifting device (14
) and the lifting platform (15) are multidimensionally movable scaffolds characterized by being connected with pins that can be tilted freely.