JP3138387B2 - Work mobile scaffold - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scaffold for assembling along a wall surface of a building and performing construction work, plastering work, painting work, and other works of the building. The present invention relates to a movable scaffold that can be moved along a wall surface and can be applied to work on a wide wall surface of a building by assembling a minimum necessary main frame.

[0002]

2. Description of the Related Art When performing various operations as described above for a structure, a scaffold is set outside the wall surface of the structure, and a person works on the scaffold. A scaffold temporarily constructed on the site for such a purpose is constructed by placing a metal pipe or the like in a grid-like form, laying a scaffold frame on the ground parallel to the walls of the structure, and connecting the upper part of the scaffold frame to the structure by connecting the walls. Fix it. Further, if necessary, a step board or an uphill board is erected on the scaffold frame horizontally. In this case, a main frame for scaffolding is used, in which the metal pipes are integrally assembled in a ladder shape or a gate shape so as to be easy to assemble, and the metal pipes are spliced up and down in a state of a spigot joint.

[0003]

The scaffold constructed in this way along the outer wall of the building must be constructed along the entire wall of the building on which work needs to be performed.
However, if the structure is large, the amount of scaffolding equipment used will be considerable, and assembling it will take considerable effort. For this reason, there was a problem that considerable construction period and cost would be required only for the construction of the scaffold. The present invention enables a narrow scaffold to cover the entire wall surface of a structure even when the structure is large, so that less scaffolding equipment can be used to move the wall to the structure with less trouble. Aim to provide a scaffold.

[0004]

In order to solve the above-mentioned problems, according to the present invention, a base rail 4 is laid on the wall surface of the building b and the ground a, and an upper guide is provided on the building b in parallel with the base rail 4. A rail 26 is attached so that the scaffold can move along the base rail 4 and the upper guide rail 26, and one wall surface of the building b can be covered with a narrow scaffold.

More specifically, the moving scaffold according to the present invention is provided with a long base rail 4 laid horizontally and in parallel with the wall surface of the building b, and a rotatable wheel 8 attached thereto. A wheel frame 6 mounted on the base rail 4 via a base, a base 11 mounted on the wheel frame 6, a main frame mounting portion 12 protruding from the base 11, and a main frame mounting portion 12 A main frame 20 erected on the base 11 and assembled in a frame shape, with a lower end joined thereto, protruding from an upper portion of the main frame 20 toward the building b, and It is characterized in that it has a bracket 27 which is movably engaged with an upper guide rail 26 mounted in parallel with the rail 4.

Here, the base rail 4 has a plurality of base beams 3 both ends of which are supported on the ground by jack bases 5.
It is supported on. Also, a cable 15 is connected between the base 11 side and the uppermost main frame 20 via a joint 14 that can be tightened. The main frame mounting portion 12 is provided with a main frame 20.
Are arranged in the longitudinal direction of the base 11 at intervals corresponding to the length of the base 11, and are arranged in the width direction of the base 11 at intervals corresponding to the widths of the plural types of main frames 20.

[0007]

In the moving scaffold according to the present invention, the scaffold frame, which is erected on the base 11 via the main frame mounting portion 12 and comprises the main frame 20 assembled in a frame shape, is mounted on the wheel frame 6. The vehicle travels along the base rail 4 by the rotation of the wheels 8. At this time, the upper side of the main frame 20 is supported by the bracket 27 that can travel along the upper guide rail 26, so that the scaffold on the base 11 does not fall down and is parallel to the wall surface of the building b, that is, vertically. The standing state is maintained. Then, a relatively narrow scaffold frame capable of covering the entire height of the building b is constructed, and the base rails 4 and the upper guide rails 26 are provided with a length covering the entire wall surface of the building b. By moving the scaffolding frame along the base rail 4 and the upper guide rail 26, the entire wall surface of the building b can be covered with a narrow scaffold.

In the moving scaffold according to the present invention, a main frame mounting portion 12 is provided so as to protrude from a base 11, and the main frame mounting portion 12 is provided.
The lower end of the main frame 20 to the base 11
Since the main frame 20 is erected on the base 11, an arbitrary number of main frames 20 can be assembled on the base 11, and a scaffold frame of a required height can be easily constructed on the base 11. further,
Since the assembling and disassembling can be easily performed, the foundation can be easily assembled in a short time, and further easily removed in a short time.

In this scaffold, when the base rail 4 is supported on a plurality of base beams 3 whose both ends are supported on the ground by jack bases 5, the jack base 5
Accordingly, the base rail 4 can be easily leveled out. Further, when the cable 15 is connected to the base 11 side and the uppermost main frame 20 via a joint 14 that can be tightened, the main frame 20 joined vertically is fixed by the cable 15 and these should be High safety can be ensured.

Further, the main frame mounting portion 12 is provided with a main frame 20.
Are arranged in the longitudinal direction of the base 11 at intervals corresponding to the length of the main frame 20, and are arranged in the width direction of the base 11 at intervals corresponding to the widths of the plural types of main frames 20. Can be arbitrarily assembled on the base 11, and the versatility can be improved.

[0011]

Next, an embodiment of the present invention will be described specifically and in detail with reference to FIGS. 1 to 3
As shown in (1), a base rail 4 is laid on the ground a in parallel with the wall surface of the building b using the scaffold. Construct b-1
When working on the entire surface of one wall surface, the base rail 4 is laid over the entire width of the wall surface of the building b.

In the illustrated example, as shown in FIGS.
First, two long slats 1 are laid on the ground a in parallel with the wall surface of the building b, and the jack bases 5 are placed on the slabs 1 at appropriate intervals. As the soleplate 1, a wooden plywood, a steel plate or the like is generally used. Both ends of the foundation beam 3 are supported by the jack bases 5 placed on the floor boards 1 on both sides, and the heights of the both ends are adjusted by the jack bases 5.
The basic beam 3 is a member having high rigidity, for example, made of a steel material and having a U-shaped cross section. Through holes are provided at both ends thereof, and the cylindrical screw portion 2 is fixed to the center of the through holes. I have. The screw of the jack base 5 is screwed into the screw portion 2, and the height of both ends of the base beam 3 can be adjusted by rotating the screw of the jack base 5.

The base beams 3 supported by such jack bases 5 are arranged on the base plate 1 at appropriate intervals, and the base rails 4 are supported and fixed on the base beams 3. The illustrated base rail 4 is made of steel or the like, and has a horizontal H-shaped cross section in order to obtain sufficient rigidity. When a plurality of base rails 4 are joined, the joined ends are always supported by the base beam 3. In this state, the jack base 5
When the base beams 3 are leveled and adjusted so that all the base beams 3 are at the same height, the base rail 4 is moved to the ground a.
Supported horizontally on top. Of course, this base rail 4
Are arranged parallel to the wall surface of the building b. At both ends of the base rail 4, stoppers 25 are provided such that vertical surfaces oppose each other.

On the other hand, as shown in FIG. 2 and FIG. 5, an upper guide rail 26 is fixed above the building b so as to be horizontal and a tip portion thereof is parallel to the wall surface of the building b. The upper guide rail 26 is formed of a durable steel material or the like having a laterally U-shaped tip, and is firmly fixed to a frame of the building b, for example, a floor beam or the like by screwing or welding.

As shown in FIGS. 1 to 4, a wheel frame 6 is mounted on the base rail 4 so as to be able to run. This wheel frame 6 is a long box-shaped frame,
Wheels 8 are rotatably supported at both ends and, if necessary, inside an intermediate portion thereof. A part of the wheel 8 is driven by a motor 10. Here, for example, as shown in FIG.
The rotation is transmitted to the wheels 8 via a wheel, but a sprocket mechanism or the like may be used as the rotation transmission mechanism. In FIG. 1, reference numeral 31 denotes a cable reel on which a cable for supplying electric power of the motor 10 is wound.

As shown in FIGS. 1 to 4, the wheels 8 are all mounted on the base rail 4, so that the wheel frame 6 runs along the length of the base rail 4 by the rotation of the wheels 8. The driving force is the motor 10
However, the wheel frame 6 may be pulled by a winch or the like provided outside the wheel frame 6, and in the case of a small scaffold, it can be run manually.

As shown in FIGS. 3 and 4, small auxiliary wheels 7 are rotatably mounted on both sides of the wheel frame 6, and the auxiliary wheels 7 hold the base rail 4 from both sides. For this reason, the wheel frame 6 is
However, it does not move in the width direction but can travel only in the longitudinal direction. A cushioning material 9 made of an elastic material such as rubber is provided on both end surfaces of the wheel frame 6. This is a member for reducing the impact when the end of the wheel frame 6 hits the stopper 25. It is.

A flat base 11 wider than the wheel frame 6 is mounted on the wheel frame 6. On the base 11, a projecting main frame mounting portion 12 into which the lower end of the vertical rod 16 of the main frame 20 for constructing a scaffold is inserted is projected. As is well known, the main frame 20 has a lower end of the vertical rod 16 fitted to a joint projection 22 (see FIG. 3) protruding from the upper end of the vertical rod 16 of another main frame 20 in a so-called pie-joint state. , Which are successively added. The main frame mounting portion 12 has the same shape as the joint protrusion 22, and the lower end of the vertical rod 16 of the main frame 20 is removably fitted thereto, and the main frame 20 is erected on the base 11. be able to.

The main frame mounting portions 12 are arranged in the longitudinal direction of the frame 11 at intervals corresponding to the intervals of the vertical rods 16 in the longitudinal direction of the main frame 20. In the width direction of the frame 11, a plurality of main frame mounting portions 12 are provided at intervals between the vertical bars 16 of a plurality of types of main frames 20 having different widths. For example, in the case of the illustrated embodiment, as is clear from FIGS. 3 and 4, one main frame mounting portion 12 is provided on the right side of the frame 11, whereas the main frame mounting portion 12 is provided on the left side in the width direction of the frame 11. Three main frame mounting portions 12 are provided. Therefore, when the wide main frame 20 is used as shown in the figure, the main frame 20 is attached to the right main frame mounting portion 12 and the left outermost main frame mounting portion 12.
The vertical rods 16 and 16 are inserted and fixed. When the narrower main frame 20 is used, the vertical rods 16 of the main frame 20 are inserted into the right main frame mounting portion 12 and one of the left inner main frame mounting portions 12. Fix with.

In this manner, the first-stage main frame 20 is set on the base 11 and the appropriate number of main frames 20 are further joined thereon to construct a scaffold frame having an appropriate height. Main frame 2
At the time of seaming 0, the lower end of the vertical rod 16 of the upper frame 20 is fitted to the joint projection 22 of the lower main frame 20 as described above.

At both ends of the base 11, hook mounting portions 13 are provided.
A cable 15 such as a wire is connected to the hook mounting portion 13 via a tightenable joint 14 such as a turnbuckle having a hook. The other end of the cable 15 is connected to the horizontal rod 21 at the upper end of the uppermost main frame 20, and the cable 15 is fastened by the joint 14. As a result, all the main frames 20 are pressed by the cords 15 so as not to come off, and the vertical rods 16 do not come off from the joint projections 22 and the main frame mounting portion 12.

The main frame 20 is reinforced by auxiliary rods 17 and 18 extending in the longitudinal direction and the width direction. That is, as shown in FIGS. 3 and 4, the auxiliary rods 17 and 18 are passed in the longitudinal direction and the width direction of the main frame 20 so as to be orthogonal to the vertical rod 16 of the main frame 20.
, And is fixed to the vertical rod 16 and the other auxiliary rods 19 and 18. In the scaffolding frame framed by the main frame 20 and the auxiliary rods 18 and 19 in this way, if necessary, a step board is temporarily provided or an upside board is provided.

Further, as shown in FIGS. 2 and 5, brackets 27 are protruded from two or more upper positions of the scaffold frame 20 toward the building b. The bracket 27 is provided at the height of the upper guide rail 26 provided with the building b, and a roller 28 rotatably provided at the tip of the bracket 27 is fitted into the tip of the upper guide rail 26, and runs in the longitudinal direction thereof. Hanging freely. Thus, the scaffold frame can be moved without falling down while being held in parallel with the wall surface of the building b.

This moving scaffold can be moved along the base rail 4 and the upper guide rail 26 even if the width of the moving scaffold is smaller than the width of the wall of the building b.
Can cover the entire wall surface. This allows
By using a small number of main frames 20, it is possible to cope with a wall having a large area.

[0025]

As described above, according to the present invention, even if the structure is large, the entire wall surface of the structure can be covered with a narrow scaffold, and thereby the number of steps can be reduced with less scaffolding equipment. The work on the wall surface to the structure becomes possible.

[Brief description of the drawings]

FIG. 1 is a front view showing a moving scaffold according to an embodiment of the present invention.

FIG. 2 is a side view showing the moving scaffold according to the embodiment.

FIG. 3 is an enlarged sectional view of a main part taken along line AA in FIG. 1;

FIG. 4 is a perspective view of a main part showing the moving scaffold according to the embodiment.

FIG. 5 is an enlarged top side view showing the moving scaffold according to the embodiment.

[Explanation of symbols]

 Reference Signs List 3 base beam 4 base rail 5 jack base 6 wheel frame 8 wheel 11 base 12 main frame mounting part 14 fastening joint 15 cord 20 main frame 26 upper guide rail 27 bracket a ground b building

Claims (4)

(57) [Claims] 1. The ground (a) parallel to the wall of the building (b)
A work scaffold constructed by erecting a main frame (20) from the above, comprising a long base rail (4) laid in parallel with a wall surface of the building (b) and horizontally, and rotatable wheels. (8)
A wheel frame (6) mounted on the base rail (4) via the wheels (8), and a base (11) mounted on the wheel frame (6).
Main frame mounting part (12) protruding from this base (11)
A main frame (20), which is erected on the base (11) and assembled into a frame shape, with its lower end joined to the main frame mounting portion (12), and an upper portion of the main frame (20) A bracket (27) protruding from the first rail to the building (b) and being movably engaged with an upper guide rail (26) attached to the same building (b) in parallel with the base rail (4).
Possess the door, the main frame mounting portion (12), a plurality of types of main frame
The width direction of the base (11) at an interval corresponding to the width of (20)
A working scaffold characterized in that a plurality of working scaffolds are arranged . 2. The working scaffold according to claim 1, wherein the base rail is supported on a plurality of foundation beams supported on the ground by jack bases at both ends. . 3. A cable (15) connected to the base (11) side and the uppermost main frame (20) via a joint (14) capable of being tightened. Working scaffolding. 4. The main frame mounting portion (12) includes a main frame (2).
The working scaffold according to any one of claims 1 to 3, wherein the working scaffold is arranged in the longitudinal direction of the base (11) at intervals corresponding to the length of the base (11).