JP2001032538A - Working scaffold - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a working scaffold suspended by a balloon. SOLUTION: The working scaffold has a balloon 30 sent up to the upper section of a roof floor, lateral-movement roof-floor anchor means 20 pulling the balloon 30 and being disposed on the roof floor laterally movably along a work predetermined wall surface 3, a cage 31 hung down from the balloon 30 and positioned in a vertically movable manner to the work predetermined wall surface 3, and a lateral-movement ground-surface anchor means 10 pulling the cage 31 and being disposed laterally movably on a ground surface along the work predetermined wall surface 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scaffold for outdoor work, for example, a work scaffold used for construction of an outer wall of a building.

[0002]

2. Description of the Related Art Conventionally, for example, when repairing the outer wall of a relatively high-rise building, a work gondola is hung from the roof along the outer wall as a scaffold. This will be described briefly with reference to FIG. In the drawing, reference numeral 1 denotes a gondola, 2 and 2 denote wires as pulling members for suspending the gondola 1 from the roof, and 3 denotes an outer wall of a building to be worked.
Anchor and hoist installed on the roof of the building (not shown)
The gondola 1 is moved up and down through the wires 2 and 2 operated by the above.

[0003]

However, a gondola suspended from the roof is relatively suitable for work in the vertical direction of the wall within the range of the length of the condola. Every minute you have to move the heavy gondola sideways. Moreover, this lateral movement of the gondola not only lowers the gondola to the ground surface and laterally moves it just below the next enforcement place, but also laterally moves the rooftop hanging equipment again and re-installs it. After confirming the safety of the operation, you can finally start working on the original work. As described above, in the conventional method, the moving and re-installing work of the gondola, which requires a great deal of time and labor, has to be repeated many times. In particular, complicated replacement of wires has been a complicated operation. An object of the present invention is to provide a work scaffold that can be easily moved and reinstalled.

[0004]

According to the first aspect of the present invention, there is provided a balloon which is lifted upward on a roof and a laterally movable roof which is disposed on the roof so that the balloon can be moved laterally along a wall to be worked by pulling the balloon. Anchor means, a riding car suspended from the balloon and positioned on a planned work wall so as to be able to move up and down, and a laterally moving ground surface towed the riding car and arranged to be able to move laterally on the ground along the planned work wall surface And an anchor means.

According to a second aspect of the present invention, in the working scaffold according to the first aspect, the laterally moving ground anchor means for towing the riding car is towed remotely operated by a riding car elevating operation means mounted on the riding car. A member winding device is provided.

[0006] The invention of claim 3 is claim 1 or claim 2.
3. The working scaffold according to claim 1, wherein the balloon is a hot-air balloon equipped with a remotely operated heating device.

[0007] The invention of claim 4 is the invention of claims 1 to 3.
In the working scaffold according to any of the above, the laterally moving roof anchor means are disposed relative to each other centering on the main traction member of the balloon hanging the condra, and each moving roof anchor means is a traction member of the traction member that respectively pulls the balloon. It is characterized by comprising tension adjusting means for keeping the tension constant.

[0008] The invention of claim 5 is the invention of claims 1 to 4.
In the working scaffold according to any of the above, the laterally moving roof anchor means is detachably fixed to the parapet floor.

[0009] The invention of claim 6 is the invention of claims 1 to 4.
In the working scaffold according to any one of the above, a spacing means for vertically holding a main traction member for suspending the riding cage so as to maintain a required interval between the riding cage and a wall to be worked is provided on the roof. .

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 The working scaffold according to the present invention, instead of the conventional gondola, lifts the balloon and uses the riding basket of the balloon as the working scaffold, and pulls the balloon lifted upward on the rooftop and the balloon. A laterally moving roof anchor means disposed on the roof so as to be able to move laterally along the wall to be worked, a riding basket suspended by the balloon and positioned to be able to move up and down on the working wall, and towing the riding basket, And a laterally moving surface anchoring means disposed so as to be laterally movable on the ground surface along the wall to be worked. Hereinafter, this will be described by taking the construction of the outer wall of the building as an example.

First, referring to FIGS. 1 and 2, the laterally moving ground anchor means 10 will be described. FIG. 1 is a conceptual diagram of the configuration of the working scaffold according to the first embodiment, and FIG. 2 is a cross-sectional view of a laterally moving ground anchor. The illustrated laterally moving ground anchor means 10
Is installed in parallel with and along the wall surface 3 over the length of the work-planned wall surface 3 (hereinafter, also simply referred to as a wall surface) where the work is to be performed. A riding basket 31 suspended from the ground 30 is pulled from the ground surface side so as to be able to move laterally on the ground surface along the wall surface 3 to be worked. The laterally moving ground anchor means 10 shown in this embodiment is composed of a rail member 11 and a ground anchor device 12 that can be freely moved by being guided by the rail member 11.

In FIG. 2, as the rail member 11,
For example, a 150 × 100 mm H-section steel is to be
And are installed on the ground surface in parallel with an appropriate interval suitable for work. In addition, the ground surface means not only the surface of the ground but also the floor surface below the wall surface to be worked depending on the working environment.

The ground anchor device 12 is a moving body to which a wire 34 as a pulling member for pulling a riding basket 31 described later is fastened. In this example, a cross section T on the front side of the H-shaped steel as the rail member 11 is used. A U-shaped guide portion 16 that slidably meshes with the U-shaped portion; a wheel reinforcing bar 17 provided on the U-shaped guide portion 16 as a fastening member of a wire 34 as a pulling member for pulling the riding basket 31; , Riding basket lifting / lowering operation means (not shown) mounted on the riding basket 31
And a traction member take-up device 15 remotely operated by the control device.

Next, a description will be given of the laterally moving roof anchor means 20 which is removably disposed on the roof so that the balloon 30 is pulled along the wall 3 to be worked by pulling the balloon 30. The horizontal moving roof anchor means 20 shown in this embodiment, as shown in FIG.
With the main traction member 21 of the balloon 30 suspending the condra 31 as a center, the balloon 30 is disposed at least on the left and right sides, that is, in a direction parallel to the wall surface 3 to be worked. Each of these laterally moving rooftop anchor means 20, 20 has a balloon 30 attached thereto.
A traction member winding device 25 is provided as tension adjusting means for maintaining a constant tension of the traction member 22 for traction (see FIG. 3).

More specifically, referring to FIG. 3, the laterally moving roof anchor means 20 of this embodiment includes a U-shaped guide portion 26 which meshes with the parapet 24 on the roof of the building.
As a fastening member of the wire 22 as a pulling member for pulling the riding basket 31, a wheel reinforcing bar 27 provided on the U-shaped guide portion 26, and further, a riding basket elevating operation means (FIG. (Not shown). Of course, the traction member winding device 25 may be configured separately from the guide portion 26 and the wheel reinforcing bar 27. As shown in FIG. 3, the U-shaped guide portion 26 is provided with a fixing bolt 28 for detachably fixing the parapet 24 to the ceiling portion. When moving horizontally,
After loosening the fixing bolt 28 and moving the parapet 24 on the ceiling by a required distance, the fixing bolt 28 is tightened and fixed again.

Next, the balloon 30 raised above the roof will be described with reference to FIGS. 1, 4 and 5. FIG. The balloon 30 shown in the embodiment has a burner 32 as a heating device.
It is a hot air balloon equipped with. However, the balloon in the present invention only needs to have sufficient buoyancy, and a heating device is not necessarily required. For example, the balloon may be a simple ad balloon. In FIG. 1, two wires 22, 22 are fastened to a balloon 30 as traction members to be pulled by a main traction member 21 for suspending a riding basket 31 and two laterally moving roof anchors 20, 20. ing. This 2
The wire 22.22 has a twisting-back device 33 for adjusting the wires 22 and 22 so that the wires 22 and 22 are not twisted, regardless of the rotation of the balloon 30, and a winding member for winding the traction members of the laterally moving roof anchors 20 and 20. A tension gauge 39 as tension adjusting means for automatically maintaining the required tension by operating the devices 25, 25 is attached. The riding basket 31 suspended from the balloon 30 via the main traction member 21 is further towed by the wire 34 as a traction member of the traction member winding device 15 of the laterally moving surface anchor device 10 located below. Is as described above.

In FIGS. 1 and 6, the car 3
1 is attached to the main traction member 21 of the balloon 30
1 is provided with a spacing anchor 35 as spacing means for maintaining a required spacing that facilitates work from the wall surface 3. This spacing maintaining anchor 35 is a rooftop parapet 2
The U-shaped guide portion 36 that meshes with the top of No. 4 and a rod portion 37 that vertically grips the main traction member 21 are provided. By adjusting the length of the rod portion 37, The required spacing is obtained. This spacing maintaining anchor 35
Is detachably fixed to the parapet 24 at the ceiling via a fixing screw 40. As shown in FIG. 1, a rope 38 as a fall prevention rope for preventing the fall of the riding cage 31 is attached to the spacing holding anchor 35.
It is attached between.

Next, the construction of the working scaffold according to the present invention will be described.
This will be described with reference to FIGS. First, the wall 3 to be worked
The car 31 is placed in parallel on the ground surface at a certain distance from the wall 3 so that the basket 31 can be kept at a suitable distance for work from the wall surface 3. That is, the ground anchor device 12 is mounted on the rail member 11 constituting the laterally moving ground anchor means 10 so that the ground anchor device 12 can travel, and the traction member winding device 15 for vertically moving the riding basket 31 on the ground anchor device 12. And the wire 34 from the traction member winding device 15 is fastened to the riding basket 31. Next, the balloon 30 is placed on the roof, and as described above, the riding scaffold 31 attached to the laterally moving ground surface anchoring means 10 is placed on the ground surface, and the working scaffold is constructed on the work-planning wall surface 3. While assuming the positions of the balloon 30 and the riding basket 31, the horizontal moving roof anchor means 20, the various traction members 21, 22, 22 and the like are arranged and assembled.

Next, the balloon 30 is raised and the car 31
Hanging. In this case, the burner 32 of the balloon 30 is operated in a state in which the stopper (not shown) of the drive motor of the traction member winding device 15 of the laterally moving ground anchor means 10 is released, and hot air is sent into the balloon 30. . This allows
The buoyancy of the balloon 30 is increased, and the balloon 30 is lifted up to a state where the wires 22, 22 of the laterally moving roof anchors 20, 20 are maximally tensioned, and the riding basket 31 is suspended by the main traction member 21. In this suspended state, the riding cage 31 maintains a required interval suitable for the work between the riding basket 31 and the wall surface 3 by the interval maintaining means 35.

When the car 31 is lowered, the laterally moving ground anchor means 10 which is remotely operated by a car elevating operation means (not shown) mounted on the car 31.
Take-up drive of the traction member take-up device 15 of FIG.
The ride basket 31 is lowered while gradually shortening the length of 4. When the riding basket 31 is lowered, the main traction member 21 also pulls down the balloon 30 at the same time, so that the wires 22 connecting the laterally moving roof anchors 20, 20 and the balloon 30 are provided.
In any case 22, the tension is weakened, but the weakness of the tension is immediately measured by the tension gauge 33.
When the tension is detected, the tension adjusting means is operated, and the winding of the pulling member winding devices 25, 25 causes the wires 22, 22 to be wound up to a required tension.

As described above, in this embodiment, the traction member winding device 25 belonging to the laterally moving roof anchor means 20 is used.
Is a wire 2 for maintaining the balloon 30 in a predetermined state.
Since the tension adjusting means is constituted in conjunction with the tension gauge 33 provided in the balloons 2 and 22, the wires 22 and 22 for pulling the balloon 30 are always constant when the balloon 30 and therefore the riding basket 31 are raised and lowered. It has been adjusted to maintain the tension. Therefore, for example, even when the balloon 30 is tilted by the wind,
The length of both wires 22, 22 is kept constant. The tension adjusting means operates the traction member hoisting device 25 in accordance with the detection value of the tension gauge 33 as a tension sensor, and allows the tension of the traction member 22 that pulls the balloon 30 to be wound according to the situation, Unwinding the traction member 2
2 is always maintained at a predetermined tension.

Embodiment 2 FIG. The second embodiment has a configuration in which a simple ad balloon is used as a balloon instead of a hot air balloon (not shown). In the first embodiment,
Although a hot air balloon has been described, a simple ad balloon may be used. In this case, a sufficient buoyancy is given to the ad balloon, and in order to raise and lower the riding basket, a traction member winding device as a separately prepared ad balloon raising / lowering device is installed on the roof, and the traction member winding device is used. The traction member is fastened to the ad balloon, and the traction member is wound or unwound to raise and lower the ad balloon, thereby raising and lowering the riding basket. Of course, also in the first embodiment, the hot air balloon may be provided with the elevating means having such a configuration.

Embodiment 3 FIG. In the first embodiment, the laterally moving roof anchor means 20 is disposed on the parapet 24 of the building.
May be laid on the rooftop to guide the roof anchor device to the rail member 11 (not shown).

[0024]

According to the first to sixth aspects of the present invention, when moving a balloon-carrying basket serving as a working scaffold in a lateral direction, the basket is temporarily placed on the ground like a conventional gondola. It does not need to be moved laterally, and can be moved easily and quickly while being hung on a balloon. It is possible to remarkably improve productivity without being forced to perform a reworking operation.

[Brief description of the drawings]

FIG. 1 is a configuration conceptual diagram of a working scaffold according to a first embodiment.

FIG. 2 is a cross-sectional view showing an attached state of the laterally moving ground anchor means according to the first embodiment.

FIG. 3 is a cross-sectional view showing an attached state of the laterally moving roof anchor means according to the first embodiment.

FIG. 4 is an explanatory diagram showing a preparation state immediately before the balloon is lifted according to the first embodiment;

FIG. 5 is an explanatory diagram showing a state immediately after the balloon is lifted according to the first embodiment;

FIG. 6 is a cross-sectional view showing an attached state of the spacing means in the first embodiment.

FIG. 7 is an explanatory view of a scaffold by a conventional gondola.

[Explanation of symbols]

3 Wall to be worked on, 10 Anchor means for laterally moving ground, 1
5 traction member winding device, 20 lateral moving roof anchor means, 21 main traction member, 22, 34 traction member, 24
Parapet, 32 burners (heating device), 35 spacing means.

Claims (6)

[Claims] 1. A balloon lifted up on a rooftop, a horizontal moving roof anchoring means disposed on the roof so as to be able to traverse the balloon and move laterally along a wall to be worked on, and work suspended from the balloon. A riding basket that can be moved up and down on the planned wall,
A working scaffold comprising: a laterally moving ground anchor means which is arranged to be capable of laterally moving on the surface of the ground along the wall to be worked by towing the riding basket. 2. The laterally moving ground anchor means for towing a riding car includes a towing member winding device remotely operated by a riding car elevating operation means mounted on the riding car. The working scaffold described. 3. The work scaffold according to claim 1, wherein the balloon is a hot-air balloon having a remotely operated heating device. 4. The horizontal moving roof anchor means is disposed to the left and right relative to the main traction member of the balloon for hanging the condra, and each horizontal moving roof anchor means keeps the tension of the traction member for pulling the balloon constant. The work scaffold according to claim 1, further comprising a tension adjusting unit. 5. The work scaffold according to claim 1, wherein the laterally moving roof anchor means is detachably fixed to the parapet floor. 6. A roofing device having a space holding means for vertically holding a main traction member for suspending the riding cage so as to keep a required distance between the riding cage and a wall to be worked. 4. The work scaffold according to any one of 4.