JP2016138444A - Travelling hanging scaffold method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify a construction work by enabling a travelling hanging scaffold to be easily and safely moved and the scaffold to be extended in a width direction of a structure.SOLUTION: A travelling hanging scaffold comprises: a first scaffold frame 100 and a second scaffold frame 500, which are suspended from and supported by a first scaffold suspending part Ma; and a wire wind-up device 400, whose one end is suspended and supported by a wire wind-up device suspending part. Only the first scaffold suspending part Ma is suspended by bridging the wire La on the first scaffold frame side to the second scaffold frame side by using a bridging device. As a tip part of the first scaffold frame 100 can be supported by adjusting a length of the wire La through the wire wind-up device 400 on the second scaffold frame side, the scaffold can be safely extended while keeping a horizontal state of the first scaffold frame 100.SELECTED DRAWING: Figure 7

Description

The present invention relates to a mobile suspension scaffold method used for construction work of structures such as bridges, elevated roads, railways, buildings, etc., and inspection, painting, repair work, etc. of high places for these structures.

  As for the mobile suspension scaffolding device, a technology relating to a scaffold constructed on the back surface of a bridge or a side surface of a high-rise building where a scaffold cannot be assembled sequentially from the ground is known. For example, what is shown in Patent Document 1 is an example, which will be described with reference to FIGS. 13 and 14. FIG. 13 is an explanatory view showing a construction state of the mobile suspension scaffold device, and FIG. 14 is an enlarged partial sectional view of the I portion.

  In this movable suspension scaffold device, a pair of hanger rails J2 are installed on both sides along the longitudinal direction of the bridge P by suspending and fixing the hanger rails J2 to the ribs A1a of the support beams A1 of the bridge P with the fixtures J1. A scaffold (not shown) formed on the truss beam B extending in the width direction of the bridge P along the hanger rail J2 is movably installed.

  The movable suspension scaffold device is supported by the hanger rail J2 and is capable of traveling along the hanger rail J2. The upper traveling portion J3 is perpendicular to the upper traveling portion J3 via a vertical suspension member J4. A lower traveling portion J5 rotatably connected around the axis, and the lower traveling portion J5 is supported so as to be able to travel along a rack rail B1 formed on the upper side portion of the truss beam B, whereby the trust beam B Is movable in the width direction of the bridge P. A rack rail B2 is also formed on the lower side portion of the trust beam B, and a scaffold (floor) that can move horizontally or vertically with respect to the trust beam B by supporting a traveling portion (not shown) on the rack rail B2. Part) can be installed.

  As shown in FIG. 14, the hanger rail J2 is a rail having an inverted T-shaped cross section, and rack teeth J2a are formed on the lower surface thereof, and the rack rails B1 and B2 are also similar to the upper or lower surface thereof. Rack teeth B1a and B2a are formed. A pinion wheel J3a that meshes with the rack teeth J2a of the hanger rail J2 is rotatably mounted in the upper traveling portion J3, and a support wheel J2b that is in contact with and supported by the back side edge of the rack teeth J2a is rotatable. Similarly, a pinion wheel J5a that meshes with the rack teeth B1a of the rack rail B1 is also rotatably mounted in the lower traveling portion J5, and is also supported by a back side edge of the rack teeth B1a. J5b is rotatably mounted.

Japanese Patent No. 2802307

  According to such a movable suspension scaffolding device, while extending the hanger rail J2 having a predetermined length in the longitudinal direction of the bridge P, the upper traveling portion J3 is moved along the hanger rail J2 to the truss beam B. The supported scaffold can be sequentially moved along the bridge P.

  However, the conventional technique has a problem that it is difficult to construct a scaffold suspended in the air on the back surface of the bridge and in the width direction of the bridge, which requires a large number of man-hours, which takes a long construction period. In addition, since the scaffold suspended in the air is installed on the back of the bridge and in the width direction of the bridge, there is a problem in the safety of the construction work.

  The present invention has been proposed to cope with such a problem, and enables the work of laying a scaffold easily and safely on the back surface of the bridge and in the width direction of the bridge, for inspection, painting, repair work, etc. The purpose of the present invention is to provide a mobile suspension scaffolding method capable of shortening the construction period and simplifying the construction work.

In order to solve such a problem, the present invention has the following features.
That is, the present invention is a mobile suspension scaffolding method for installing a scaffold used for inspection, painting and repair work at a high place for a structure including a bridge and an elevated road.
A first scaffold suspension provided at both ends of the structure width direction;
A first scaffolding frame and a second scaffolding frame that are suspended and supported by each of the first scaffold suspension parts and extend the scaffolding in the width direction of the structure;
The first scaffolding frame and the second scaffolding frame are rail portions formed along respective upper sides of the scaffolding frame,
A traveling unit having a driven vehicle coupled to the rail portion and having a driving vehicle capable of traveling on the rail portion, and driven by the driving vehicle along the rail portion;
A suspension support member that suspends and supports the traveling unit together with the scaffolding frame from the first scaffolding suspension unit, and is capable of turning the scaffolding frame in a horizontal plane,
The first scaffolding frame is a lead wire that is detachably connected at one end to an unmanned aircraft that can fly unmanned by remote operation or automatic control,
A wire having one end connected to the other end of the lead wire and the other end fixed to the first scaffold frame side;
A wire winding device that winds and rewinds the wire so that the length of the wire can freely expand and contract;
The second scaffold frame is provided on the other end side in the structure width direction so as to face the first scaffold frame, provided on the other end side in the structure width direction, and the wire winding device A wire take-up device suspension part that is connected to and suspended from,
A step of hanging and supporting the first scaffold frame and the second scaffold frame together with the traveling portion via the suspension support member on the first scaffold suspension portion;
The unmanned aircraft is remotely operated to fly to the second scaffold frame side, the lead wire connected to the unmanned aircraft is bridged to the second scaffold frame side, and the wire connected to the lead wire is connected to the second scaffold frame. Bridging to the scaffolding frame side;
Connecting the tip of the wire to the wire winding device;
The travel unit moves the first scaffold frame to the second scaffold frame side and adjusts the length of the wire using the wire winding device, so that the first scaffold frame is moved to the second scaffold frame. And a step of extending the scaffold by drawing it to the frame side and coupling it.

Further, the present invention relates to a mobile suspended scaffold construction method for installing a scaffold used for inspection, painting and repair work at a high place for a structure including a bridge and an elevated road.
A first scaffold suspension provided at both ends of the structure width direction;
A first scaffolding frame and a second scaffolding frame that are suspended and supported by each of the first scaffold suspension parts and extend the scaffolding in the width direction of the structure;
The first scaffolding frame and the second scaffolding frame are rail portions formed along respective upper sides of the scaffolding frame,
A traveling unit having a driven vehicle coupled to the rail portion and having a driving vehicle capable of traveling on the rail portion, and driven by the driving vehicle along the rail portion;
A suspension support member that suspends and supports the traveling unit together with the scaffolding frame from the first scaffolding suspension unit, and is capable of turning the scaffolding frame in a horizontal plane,
The first scaffolding frame is a long bar that protrudes and is fixed to the advancing tip for extending;
A lead wire connected to the end of the long bar;
A wire having one end connected to the other end of the lead wire and the other end fixed to the first scaffold frame side;
A wire winding device that winds and rewinds the wire so that the length of the wire can freely expand and contract;
The second scaffold frame is provided on the other end side in the structure width direction so as to face the first scaffold frame, provided on the other end side in the structure width direction, and the wire winding device A wire take-up device suspension part that is connected to and suspended from,
A step of hanging and supporting the first scaffold frame and the second scaffold frame together with the traveling portion via the suspension support member on the first scaffold suspension portion;
The travel unit moves the first scaffold frame and the second scaffold frame in the width direction of the structure, and bridges the lead wire provided on the long rod of the first scaffold frame to the second scaffold frame side. And bridging the wire connected to the lead wire to the second scaffold frame side;
Connecting the tip of the wire to the wire winding device;
The travel unit moves the first scaffold frame to the second scaffold frame side and adjusts the length of the wire using the wire winding device, so that the first scaffold frame is moved to the second scaffold frame. And a step of extending the scaffold by drawing it to the frame side and coupling it.

According to the configuration of the present invention, it is possible to easily and safely construct a scaffold suspended in the air, to shorten the construction period of inspection, painting, repair work, and the like and to simplify the construction work.
Further, according to the configuration of the present invention, the first scaffolding frame side wire is bridged to the second scaffolding frame side using a bridging device (unmanned airplane, long bar, lead wire, etc.). Since the length of the wire is adjusted via the wire winding device on the second scaffold frame side in addition to the suspended state of only the one suspension support member, the tip portion of the first scaffold frame can be supported. The scaffold can be extended by connecting the first scaffold frame to the second scaffold frame safely while maintaining the horizontal state of the first scaffold frame.
Furthermore, in such an embodiment, by providing a re-traveling traveling rail, even if there are obstacles that hinder the movement of bridge piers, etc., the moving suspension scaffold can be moved while avoiding this easily. It is possible to shorten the construction period such as inspection, painting and repair work and simplify the construction work.

It is a side view of the concrete bridge which consists of a bridge and a pier. It is II sectional drawing of the concrete bridge which consists of a bridge and a pier. It is II-II sectional drawing of the concrete bridge which consists of a bridge and a pier. It is explanatory drawing of the 1st scaffold frame which concerns on embodiment of this invention, Fig.4 (a) shows a top view, FIG.4 (b) shows a side view. It is explanatory drawing of the 2nd scaffolding frame which concerns on embodiment of this invention, Fig.5 (a) shows a top view, FIG.5 (b) shows a side view. It is explanatory drawing of the movable suspension scaffold construction method which concerns on embodiment of this invention. It is explanatory drawing of the movable suspension scaffold construction method which concerns on embodiment of this invention. It is explanatory drawing of the movable suspension scaffold construction method which concerns on embodiment of this invention. It is explanatory drawing of the 1st scaffolding frame concerning another embodiment of the present invention, and Drawing 9 (a) shows a top view and Drawing 9 (b) shows a side view. It is explanatory drawing of a clamp part, FIG.10 (a) is A detailed drawing of the A section of FIG.9 (b), FIG.10 (b) is III-III sectional drawing of Fig.10 (a), FIG.10 (c) is a figure. Fig. 10 (a) is a sectional view taken along line IV-IV. It is explanatory drawing of the movable suspension scaffold construction method which concerns on another embodiment of this invention. It is explanatory drawing of the movable suspension scaffold construction method which concerns on another embodiment of this invention. It is explanatory drawing of a prior art. It is explanatory drawing of a prior art.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Here, a case where a scaffold is installed on the back surface of a bridge that is a structure will be described as an example, but the application of the embodiment of the present invention is not particularly limited thereto.

[Description of First Embodiment]
1 to 3 show a concrete bridge composed of a bridge P and a pier Q, FIG. 1 is a side view of the concrete bridge, and FIGS. 2 and 3 are partial cross-sectional views of the concrete bridge. Handrails R are provided along the longitudinal direction of the bridge P at both left and right ends in the width direction of the bridge P. The handrail R is provided with a plurality of first suspension brackets Ma at substantially equal intervals along the longitudinal direction of the bridge P. As shown in FIG. 2A, the first suspension bracket Ma has a substantially U-shaped cross section so as to hold the upper end of the handrail R and is fixed to the handrail R. The first suspension bracket Ma is for lifting and fixing the first scaffold suspension portion T provided on the left and right longitudinal direction sides of the bridge P from the handrail R via a connecting member. In this embodiment, the first scaffold suspension part T is a replacement traveling rail provided with a rack, and is a conventional technique. The first scaffold suspension T is used when the scaffold is suspended from a follower traveling on the rack, and the follower is traveled along the longitudinal direction of the bridge P by a drive vehicle to cause the scaffold to be suspended and moved.

Further, as shown in FIG. 3, the handrail R is provided with a second suspension fitting Mb. The second suspension fitting Mb has a substantially U-shaped cross section so as to hold the upper end of the handrail R, and is fixed to the handrail R. Further, the second suspension metal fitting Mb is for lifting and fixing the wire winding device 400. The wire winding device 400 is provided with a wire winding portion (winch) 403 whose one end is connected to the second suspension fitting Mb side via a sling hook 402. In this embodiment, the winding / unwinding unit 403 will be described in the case of a winch that winds and unwinds a wire La described later manually. However, the wire winding unit 403 is not limited to manual operation, and may be operated electrically.

[Structure of scaffolding]
In this embodiment, a case where the first scaffold frame 100 and the second scaffold frame 500 obtained by dividing the scaffold into two parts are extended on the back surface of the bridge P will be described. It is assumed that the first scaffold frame 100 and the second scaffold frame 500 are configured to be connectable / separable from each other.
FIG. 4 is an explanatory diagram of the first scaffold frame 100, FIG. 4 (a) is a plan view, and FIG. 4 (b) is a side view.
The first scaffold frame 100 that is a main element of the scaffold includes a beam member 101 in which facing side members are combined in a box shape with a reinforcing material, and a floor member 102 laid on the lower surface of the beam member 101.

Rail portions 120 having rack teeth 121 are formed along the upper sides of the side members of the beam member 101.
The rail portion 120 has two drive wheels 141 that can travel along the rack teeth 121, and has four driven wheels 142 that follow the drive along the rail portion 120 by the drive wheels 141. A traveling unit 140A is provided.

On the first traveling unit 140A side, the two driving vehicles 141 facing each other are connected and fixed to each other. The four driven vehicles 142 are also connected and fixed in a well shape. The two driving wheels 141 and the four driven wheels 142 are connected and fixed to each other by a connecting member 143.

That is, the first traveling unit 140 </ b> A is integrally formed in a well shape and travels integrally along the rack teeth 121 by the drive of the driving wheel 141.

  The suspension support member 160A is coupled to each of the four driven vehicles 142 of the first traveling unit 140A, and is coupled to the scaffold suspension unit T (replacement traveling rail) on the bridge P side by an upper hook. It is a member that suspends and supports the scaffold frame 100 from the P-side scaffold suspension part T so as to be capable of turning in a direction on a horizontal plane.

FIG. 6 is an explanatory view of the second scaffold frame 500, FIG. 6 (a) is a plan view, and FIG. 6 (b) is a side view.
The second scaffold frame 500 includes a beam member 501 in which facing side members are combined in a box shape with a reinforcing material, and a floor member 502 laid on the lower surface of the beam member 501.

A rail portion 520 having rack teeth 521 is formed along each upper side of the side member of the beam member 501.
The rail portion 520 includes two drive wheels 141 that can travel along the rack teeth 521, and the first drive wheel 141 includes four driven wheels 142 that are driven along the rail portion 520. A traveling unit 140A is provided.

On the first traveling unit 140A side, the two driving vehicles 141 facing each other are connected and fixed to each other. The four driven vehicles 142 are also connected and fixed in a well shape. The two driving wheels 141 and the four driven wheels 142 are connected and fixed to each other by a connecting member 143.

That is, the first traveling unit 140 </ b> A is integrally formed in a well shape and travels integrally along the rack teeth 121 by the drive of the driving wheel 141.

  The suspension support member 160A is coupled to each of the four driven vehicles 142 of the first traveling unit 140A, and is coupled to the first scaffold suspension unit T (replacement traveling rail) on the bridge P side by an upper hook. The second scaffold frame 500 is a member that suspends and supports the second scaffold frame 500 from the first scaffold suspension portion T on the bridge P side so as to be capable of turning in a horizontal direction.

[Bridge device]
A bridging device 170 is provided on the distal end side where the first scaffold frame 100 is connected to the second scaffold frame 500. The bridging mechanism 170 is a device for bridging the wire that pulls the first scaffold frame 100 to the second scaffold frame 500 side to the second scaffold frame 500 side.
The bridging device 170 includes an unmanned aircraft (drone) 150 that can fly unmanned by remote operation or automatic control, a lead wire Lb whose one end is detachably fixed to a payload mounting portion 150a of the unmanned aircraft 150 by a connecting member 173, and A wire La having one end connected to the other end of the lead wire Lb by a connecting member 172 and a wire fixing portion 171 for fixing the other end of the wire La to the distal end side of the first scaffold frame 100 are provided.

The lead wire Lb connected to the payload mounting portion 150a of the unmanned aerial vehicle 150 uses a lightweight teg. The lead wire Lb is used to pull the wire La toward the second scaffold frame 500 side.

The wire La has a strength capable of pulling the first scaffold frame 100 toward the second scaffold frame 500 side. The wire La may be any wire that can be wound and unwound by the winch 403 provided on the second scaffold frame 500 side. Further, the other end of the lead wire Lb is detachably fixed to the wire La via a connecting member 172. Since the wire La is heavy, the balance when the first scaffold frame 100 is suspended is taken into consideration, and the wire La is spirally wound around the center of the first scaffold frame 100 as shown in FIG. deep.

As shown in FIG. 4A, the wire fixing portion 171 has a U shape in which two points are fixed to the distal end side of the first scaffold frame 100, and the other end of the wire La is at the center of the U shape. It is fixed.

[Description of moving suspension scaffolding method]
6-8 is explanatory drawing which showed the construction state at the time of the normal movement of the mobile suspension scaffold apparatus concerning embodiment of this invention.
FIG. 6 shows a state in which the first scaffold frame 100 is lifted to a scaffold erection position by a crane (not shown) and the upper hook of the suspension support member 160A and the replacement traveling rail T are connected. FIG. 6 shows a state in which the second scaffold frame 500 is lifted to a scaffold erection position by a crane (not shown), and the upper hook of the suspension support member 160A and the replacement traveling rail T are connected.
A bridging device 170 is installed in advance on the first scaffold frame 100. Note that the bridging device 170 lifts the first scaffold frame 100 to the scaffold construction position and connects the upper hook of the suspension support member 160A and the re-traveling traveling rail T to the unmanned aircraft 150 by the operator. The lead wire Lb may be connected to the payload mounting portion 150a, and the lead wire Lb and the wire La may be assembled and connected as shown in FIG.
As shown in FIG. 3, the handrail R on the second scaffolding frame 500 side is provided with a second suspension fitting Mb (wire winding device suspension portion). The device 400 is suspended and fixed.

Next, as shown in FIG. 6, the unmanned aerial vehicle 150 is caused to fly by remote control from the first scaffold frame 100 side to the second scaffold frame 500 while the lead wire Lb is connected to the payload mounting portion 150a. Bridge Lb to the second scaffold frame 500 side. Then, the worker on the second scaffold frame 500 side can receive the lead wire Lb at the tip of the long bar 601.
Therefore, the worker on the second scaffold frame 500 side removes the lead wire Lb from the payload mounting portion 150a of the unmanned aircraft 150, draws the wire La through the lead wire Lb, winds the tip of the wire La around the winch 403, and connects them. Let (See Figure 7)

Next, by operating the winch 403 of the wire winding device 400 and pulling the wire La toward the second scaffold frame 500, the first scaffold frame 100 is moved in the width direction of the bridge P (arrow Y direction), As shown in FIG. 8, the first scaffold frame 100 and the second scaffold frame 500 are joined to extend the scaffold.

In addition, when operating the winch 403 of the wire winding device 400 and pulling the wire La toward the second scaffold frame 500, when the tip of the first scaffold frame 100 is lifted, the drive wheel 141 is opposite to the width direction of the bridge P. By driving in the direction (opposite to the arrow Y direction), the tip of the first scaffold frame 100 is prevented from being lifted, and the first scaffold frame 100 is operated so as to maintain a horizontal balance. By operating the winch 403 and pulling the first scaffold frame 100 toward the second scaffold frame 500, the first scaffold frame 100 and the second scaffold frame 500 are joined, and the scaffold is extended. Moreover, when joining the 1st scaffold frame 100 and the 2nd scaffold frame 500, you may drive the drive wheel 141 by the side of the 2nd scaffold frame 500 to the width direction (arrow Y direction) of the bridge P, and you may join them.

In the present embodiment, by bridging the wire La on the first scaffold frame 100 side to the second scaffold frame 500 side, in addition to the suspended state of only the first suspension support member 160A, the second scaffold frame 500 side Since the tip portion of the first scaffold frame 100 can be supported by the wire La via the wire winding device 400, the scaffold can be safely extended while maintaining the horizontal state of the first scaffold frame 100. Can do.

In the present embodiment, the wire La is provided only on the first scaffold frame 100 side and bridged to the second scaffold frame 500 side. However, in addition to this configuration, the second scaffold frame 500 side is also provided. If a wire La having the same configuration is provided and bridged to the first scaffold frame 100 side so as to support the tip portion of the second scaffold frame 500, the first scaffold frame 100 and the second scaffold frame 500 The scaffold can be extended safely while maintaining the horizontal state of both frames.

[Description of Second Embodiment]
Next, a second embodiment will be described. Since the difference between the first embodiment and the second embodiment is only the difference in the configuration of the bridging device, in the description of the second embodiment, the configuration of the bridging device will be described in detail with reference to FIGS. 9 and 10. The description of the same configuration as in the first embodiment is omitted. In addition, the moving suspension scaffolding method of the second embodiment will be described in detail with reference to FIGS.

[Bridge Device of Second Embodiment]
A bridging device 600 is provided on the distal end side where the first scaffold frame 100 is connected to the second scaffold frame 500. The bridging device 600 is a device for bridging the wire that pulls the first scaffold frame 100 to the second scaffold frame 500 side to the second scaffold frame 500 side.
The bridging device 600 includes a long bar 601 and a clamp unit 610 that detachably attaches the long bar 601 to the distal end side of the first scaffold frame 100. Further, the bridging device 600 includes a lead wire Lb having one end fixed to the tip of the long bar 601, a wire La connected to the other end of the lead wire, and the other end of the wire La connected to the first scaffold. A wire fixing portion 171 that is fixed to the distal end side of the frame 100.

The long bar 601 is a light and long bar, and in this embodiment, an aluminum tube is used. In addition, the long rod 601 may have a length that can be expanded and contracted like a fishing rod. As the lead wire Lb connected to the tip of the long bar 601, a lightweight teg is used. The lead wire Lb is used to pull the wire La toward the second scaffold frame 500 side.

The wire La has a strength capable of pulling the first scaffold frame 100 toward the second scaffold frame 500 side. The wire La may be any wire that can be wound by the winch 403 provided on the second scaffold frame 500 side. Further, the other end of the lead wire Lb is fixed to the wire La via a connecting member 172. Since the wire La is heavy, it is arranged in the center of the first scaffold frame 100 as shown in FIG. 9 in consideration of the balance when the first scaffold frame 100 is suspended.

As shown in FIG. 9A, the wire fixing portion 171 has a U shape in which two points are fixed to the distal end side of the first scaffold frame 100, and the other end of the wire La is at the center of the U shape. It is fixed.

As shown in FIG. 10, the clamp unit 610 includes two sets of pipes 611 each having a fixture 612. In addition, one clamp of a single tube clamp 613 is fixed to the pipe 611. The single-tube universal clamp 613 is one in which an annular clamp for fixing a pipe is rotatably connected by two fulcrums, and a commercially available one is used. A long bar 601 is inserted into the other clamp of the single tube universal clamp 613. As shown in FIG. 10A, the long bar 601 is inserted in a positional relationship (L1> L2) in which the tip of the long bar 601 on the second scaffolding frame 500 side is slightly higher than the other end. A single tube clamp 613 is fixed to each pipe. The inclination of the long bar 601 due to the positional relationship between the two single tube clamps 613 is adjusted in advance so that the lead wire Lb provided at the tip of the long bar 601 can be easily bridged to the second scaffold frame 500 side. deep.

  As shown in FIG. 10C, the fixing tool 612 is fixed to the upper part of the pipe 611, and the pipe 611 is brought into a vertical position with respect to the round material by gripping and fixing to the round material of the first scaffold frame 100. To fix.

[Description of moving suspension scaffolding method]
FIG. 11, FIG. 12, and FIG. 8 are explanatory views showing the erection state during normal movement of the mobile suspension scaffold device according to the second embodiment of the present invention.
FIG. 11 shows a state in which the first scaffold frame 100 is lifted to a scaffold erection position by a crane (not shown) and the upper hook of the suspension support member 160A and the replacement traveling rail T are connected. FIG. 11 shows a state in which the second scaffold frame 500 is lifted to a scaffold erection position by a crane (not shown) and the upper hook of the suspension support member 160A and the replacement traveling rail T are connected.
A bridging device 600 is installed in advance on the first scaffold frame 100. Note that the bridging device 600 lifts the first scaffold frame 100 to the scaffold erection position and connects the upper hook of the suspension support member 160A and the refilling travel rail T to the long bar 601 by the operator. , The clamp portion 610, the lead wire Lb, and the wire La may be assembled and connected as shown in FIG. 9 or FIG.
As shown in FIG. 9, the handrail R on the second scaffolding frame 500 side is provided with a second suspension fitting Mb (wire winding device suspension), and the second suspension fitting Mb includes a wire winding device. The device 400 is suspended and fixed.

Next, the driving vehicle 141 is driven, and the driven vehicle 142 of the first traveling unit 140A is driven to travel integrally along the rack teeth 121, and the scaffold frame 100 is moved in the width direction (arrow Y direction) of the bridge P. Then, the distal end of the long member 601 moves to the vicinity of the second scaffold frame 500 (see FIG. 12).

In FIG. 12, when the tip of the long bar 601 moves to the vicinity of the second scaffold frame 500, the operator on the second scaffold frame 500 side can receive the lead wire Lb at the tip of the long bar 601. Become.
Therefore, the operator on the second scaffold frame 500 side pulls out the long bar 601, draws the wire La through the lead wire Lb, and winds and joins the tip of the wire La to the winch 403.

Next, by operating the winch 403 of the wire winding device 400 and pulling the wire La toward the second scaffold frame 500, the first scaffold frame 100 is moved in the width direction of the bridge P (arrow Y direction), As shown in FIG. 8, the first scaffold frame 100 and the second scaffold frame 500 are joined to extend the scaffold.

In the present embodiment, by bridging the wire La on the first scaffold frame 100 side to the second scaffold frame 500 side, in addition to the suspended state of only the first suspension support member 160A, the second scaffold frame 500 side Since the tip portion of the first scaffold frame 100 can be supported by the wire La via the wire winding device 400, the scaffold can be safely extended while maintaining the horizontal state of the first scaffold frame 100. Can do.

  The scaffold extending in the width direction of the bridge P is moved along the longitudinal direction of the bridge P, and the bridge pier Q supporting the bridge P becomes an obstacle to the movement, and the scaffold is continuously bridged. When it cannot be moved along P, the reordering operation is performed using the re-traveling traveling rail T.

According to such an embodiment, it is possible to easily and safely construct a scaffold suspended in the air, shorten the construction period of inspection, painting, repair work, and the like and simplify the construction work.
In such an embodiment, the first scaffold frame side wire is bridged to the second scaffold frame side by using a bridging device (unmanned airplane, long bar, lead wire, etc.), so that the first In addition to the suspended state of only the suspension support member, the tip of the first scaffold frame can be supported by the wire via the wire winding device on the second scaffold frame side, so the horizontal state of the first scaffold frame The scaffold can be extended safely while maintaining
Furthermore, in such an embodiment, by providing a re-traveling traveling rail, even if there are obstacles that hinder the movement of bridge piers, etc., the moving suspension scaffold can be moved while avoiding this easily. It is possible to shorten the construction period such as inspection, painting and repair work and simplify the construction work.

   INDUSTRIAL APPLICABILITY The present invention can be applied to a mobile suspension scaffold device and a construction method used for construction work of structures such as bridges, elevated roads, railways, buildings, etc., inspection, painting, repair work, etc. of high places for these structures.

100 First scaffold frame 101 (501) Beam member 102 (502) Floor member 120 (520) Rail portion 121 (521) Rack tooth 140A First traveling portion 141 Driving vehicle 142 Driven vehicle 143 Connecting member 150 Unmanned airplane 150a Payload mounting portion 160A Suspension support member 170 Bridge device 171 Wire fixing portion 172 Connection member 173 Connection member 400 Wire winding device 401 Sling hook 403 Winch 500 Second scaffold frame 600 Bridge device 601 Long bar 610 Clamp portion 611 Pipe 612 Fixing tool 613 Single Tube clamp Clamp La Wire Lb Lead wire Ma First hanging bracket Mb Second hanging bracket (wire winding device suspension)
T First scaffold suspension (replacement running rail)
P Bridge Q Pier R R Handrail

Claims (2)

In the mobile suspended scaffolding construction method that installs scaffolds used for inspection, painting and repair work at heights for structures including bridges and elevated roads,
A first scaffold suspension provided at both ends of the structure width direction;
A first scaffolding frame and a second scaffolding frame that are suspended and supported by each of the first scaffold suspension parts and extend the scaffolding in the width direction of the structure;
The first scaffolding frame and the second scaffolding frame are rail portions formed along respective upper sides of the scaffolding frame,
A traveling unit having a driven vehicle coupled to the rail portion and having a driving vehicle capable of traveling on the rail portion, and driven by the driving vehicle along the rail portion;
A suspension support member that suspends and supports the traveling unit together with the scaffolding frame from the first scaffolding suspension unit, and is capable of turning the scaffolding frame in a horizontal plane,
The first scaffolding frame is a lead wire that is detachably connected at one end to an unmanned aircraft that can fly unmanned by remote operation or automatic control,
A wire having one end connected to the other end of the lead wire and the other end fixed to the first scaffold frame side;
A wire winding device that winds and rewinds the wire so that the length of the wire can freely expand and contract;
The second scaffold frame is provided on the other end side in the structure width direction so as to face the first scaffold frame, provided on the other end side in the structure width direction, and the wire winding device A wire take-up device suspension part that is connected to and suspended from,
A step of hanging and supporting the first scaffold frame and the second scaffold frame together with the traveling portion via the suspension support member on the first scaffold suspension portion;
The unmanned aircraft is remotely operated to fly to the second scaffold frame side, the lead wire connected to the unmanned aircraft is bridged to the second scaffold frame side, and the wire connected to the lead wire is connected to the second scaffold frame. Bridging to the scaffolding frame side;
Connecting the tip of the wire to the wire winding device;
The travel unit moves the first scaffold frame to the second scaffold frame side and adjusts the length of the wire using the wire winding device, so that the first scaffold frame is moved to the second scaffold frame. And a step of extending the scaffold by drawing it to the frame side and coupling it. In the mobile suspended scaffolding construction method that installs scaffolds used for inspection, painting and repair work at heights for structures including bridges and elevated roads,
A first scaffold suspension provided at both ends of the structure width direction;
A first scaffolding frame and a second scaffolding frame that are suspended and supported by each of the first scaffold suspension parts and extend the scaffolding in the width direction of the structure;
The first scaffolding frame and the second scaffolding frame are rail portions formed along respective upper sides of the scaffolding frame,
A traveling unit having a driven vehicle coupled to the rail portion and having a driving vehicle capable of traveling on the rail portion, and driven by the driving vehicle along the rail portion;
A suspension support member that suspends and supports the traveling unit together with the scaffolding frame from the first scaffolding suspension unit, and is capable of turning the scaffolding frame in a horizontal plane,
The first scaffolding frame is a long bar that protrudes and is fixed to the advancing tip for extending;
A lead wire connected to the end of the long bar;
A wire having one end connected to the other end of the lead wire and the other end fixed to the first scaffold frame side;
A wire winding device that winds and rewinds the wire so that the length of the wire can freely expand and contract;
The second scaffold frame is provided on the other end side in the structure width direction so as to face the first scaffold frame, provided on the other end side in the structure width direction, and the wire winding device A wire take-up device suspension part that is connected to and suspended from,
A step of hanging and supporting the first scaffold frame and the second scaffold frame together with the traveling portion via the suspension support member on the first scaffold suspension portion;
The travel unit moves the first scaffold frame and the second scaffold frame in the width direction of the structure, and bridges the lead wire provided on the long rod of the first scaffold frame to the second scaffold frame side. And bridging the wire connected to the lead wire to the second scaffold frame side;
Connecting the tip of the wire to the wire winding device;
The travel unit moves the first scaffold frame to the second scaffold frame side and adjusts the length of the wire using the wire winding device, so that the first scaffold frame is moved to the second scaffold frame. And a step of extending the scaffold by drawing it to the frame side and coupling it.

Images