JP2007126896A - Movable suspended scaffolding device, and movable suspended scaffolding method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a movable suspended scaffolding device, which moves movable scaffolding in a manner avoiding a hindrance during the movement. <P>SOLUTION: According to the structure of the movable suspended scaffolding device, when the movable scaffolding formed on a first beam member 1 that is movable along first hanger rails 10a, 10b, reaches a location just before a bridge pier A<SB>0</SB>(hindrance), the first beam member 1 is shifted to second hanger rails 20c, 20d annexed to the first hanger rails 10a, 10b and connected to a lower portion of a second beam member 2 suspended from and supported by the second hanger rails 20c, 20d, to thereby suspend and support the first beam member 1 by the second hanger rails 20c, 20d. The shifted first beam member 1 is rotated such that its longitudinal direction follows the second hanger rails 20c, 20d, and moved on a rear side of the bridge pier A<SB>0</SB>along the second hanger rails 20c, 20d. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates 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.

  Various types of mobile suspension scaffolding devices have been proposed by the present applicant, and have gained many achievements as scaffolding constructed on the backside of bridges and side surfaces of high-rise buildings where scaffolds cannot be assembled sequentially from the ground. It is out. This mobile suspension scaffold can be installed and removed in a short time with the minimum amount of materials, and not only can the cost be reduced and the construction period can be shortened, but also high safety can be secured. It has been highly evaluated as being capable of minimizing the impact on the surroundings of construction, such as road regulations.

  What is shown in the following patent document 1 is an example, and this will be described with reference to FIG. The figure (a) is explanatory drawing which shows the construction state of a movable suspension scaffold apparatus, and the figure (b) is the expanded partial sectional view of I section.

  This moving suspension scaffolding device has a pair of hanger rails J2 installed on both sides along the longitudinal direction of the bridge A by suspending and fixing the hanger rails J2 to the ribs A1a of the support beams A1 of the bridge A with the fixtures J1. A scaffold (not shown) formed on the truss beam B extending in the width direction of the bridge A 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 A. 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. 5B, 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 also have upper surfaces or Similar rack teeth B1a and B2a are formed on the lower surface. 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 moving suspension scaffold device, while extending the hanger rail J2 having a predetermined length in the longitudinal direction of the bridge A, the upper traveling portion J3 is moved along the hanger rail J2, and further after the movement. The scaffold supported by the truss beam B can be sequentially moved along the bridge A while repeating the work of removing the hanger rail J2.

  However, when the scaffold supported by the truss beam B extending in the width direction of the bridge A is moved along the longitudinal direction of the bridge, the bridge pier supporting the bridge A becomes an obstacle to move. Therefore, there is a problem that the scaffold cannot be continuously moved along the bridge. In contrast, in the past, the truss beam B was once removed from under the bridge A before the bridge pier, and the truss beam B was extended again in the width direction of the bridge A when the bridge pier was exceeded. Since inspection, painting, repair work, etc. will be interrupted for each existence of this, this has had a problem of affecting the construction period of the construction and making the construction work complicated.

  In addition, such a problem is not limited to the construction of the bridge, and the same problem occurs when there is an obstacle that prevents the movement while moving on the moving suspension scaffold.

  The present invention has been proposed to cope with such a problem, and even when there is an obstacle that prevents the movement of a bridge pier or the like, the moving suspension scaffold can be easily and safely exchanged. The purpose is to make it possible to move, shorten the construction period of inspection, painting, repair work, etc. and simplify the construction work.

  In order to achieve such an object, the present invention is characterized in that, in part, a pair of left and right first hanger rails installed in a structure and each of the first hanger rails are supported by the first hanger rails. The first hanger rail is supported by the left and right sides suspended by a pair of upper traveling parts capable of traveling along each of the hanger rails, the left upper traveling part and the right upper traveling part of the first hanger rail. A first beam member extending in a direction intersecting with the first beam member, and a pair of lower members that support the rail portion formed along each upper side of the first beam member and can run along each rail portion A travel unit, and a suspension support member that suspends and supports the lower travel unit from the upper travel unit, and avoids obstacles in the extending direction of the first hanger rail. A pair of left and right second hanger rails installed in the structure alongside the hanger rails, and a pair of upper runs supported by each of the second hanger rails and capable of traveling along each of the second hanger rails And a second beam member extending in a direction intersecting the second hanger rail by being suspended and supported by the left upper traveling portion and the right upper traveling portion in the second hanger rail. A rail portion is formed along the lower side of the second beam member, a connection running portion is provided that is supported so as to be able to run on the rail portion, and the rail portion formed on the upper side of the first beam member is The first beam member is suspended and supported under the second hanger rail by being connected to a connecting traveling portion.

  Further, in addition to the above-described features, the connecting traveling portion is supported by a rail portion formed on a lower side of the second beam member and is capable of traveling along the rail portion, and the first traveling portion. A lower traveling portion that supports the rail portion formed on the upper side of the beam member and can travel along the rail portion; and a connecting member that rotatably connects the upper traveling portion and the lower traveling portion about a vertical axis; The rail portion end portion of the first beam member can be inserted into the lower traveling portion.

  Furthermore, in addition to the above-described features, the suspension height of the second beam member is set so that the height of the lower traveling portion of the connected traveling portion matches the height of the rail portion of the first beam member. It is characterized by that.

  Further, one of the first hanger rails is installed on the structure, and left and right sides of the first beam member extending the scaffold in a direction intersecting the first hanger rails are respectively connected to the first hanger rails. The first beam member is moved from the first hanger rail along the first hanger rail, and the first beam member is moved to the first beam member with respect to the suspension support position on the upper side of the first beam member. A movable suspended scaffold construction method in which a scaffold formed on the first beam member is movably installed in a direction along the first hanger rail and in a direction intersecting the hanger rail by horizontally moving in a direction intersecting the hanger rail. In order to avoid an obstacle with respect to the extending direction of the first hanger rail, a pair of left and right second hanger rails are provided on the structure along with the first hanger rail. And a second beam member having a lower side height positioned at a height substantially the same as an upper side height of the first beam member adjacent to the first beam member before the obstacle is disposed on the second hanger rail. And by changing the suspension support position on the second hanger rail so that the longitudinal direction of the second beam member intersects the longitudinal direction of the first beam member, A step of turning the two beam members, a rail portion formed on the lower side of the second beam member and a rail portion formed on the upper side of the first beam member by horizontally moving the first beam member in the longitudinal direction thereof. And the longitudinal position of the first beam member in the direction along the second hanger rail by changing the connection position between the rail portions and the suspension support position on the second hanger rail. A step of turning, and the second hanger rail A step of moving the first beam member connected to the second beam member along the rear side of the obstacle, a connection position between the rail portions, and the second hanger rail. The step of turning the longitudinal direction of the first beam member in a direction intersecting the second hanger rail by changing the suspension support position of the first beam member, horizontally moving the first beam member along the longitudinal direction, And a step of hanging and supporting the first beam member on a pair of left and right hanger rails extending to the rear side of the obstacle.

  Further, in addition to the above-described features, the support position on the first hanger rail is formed by an upper traveling portion supported by the first hanger rail and capable of traveling along the hanger rail, and the first beam. The suspension support position on the upper side of the member is formed by a lower traveling part that supports the rail part formed on the upper side of the first beam member and can travel along the rail part, and is supported by the second hanger rail. And an upper traveling portion capable of traveling along the second hanger rail, a lower traveling portion supporting the rail portion formed on the upper side of the second beam member and capable of traveling along the rail portion, and the upper traveling portion. A suspension support member having an upper end connected to the lower part and a lower end connected to the lower traveling part, and the connection between the second beam member and the first beam member is formed on a lower side of the second beam member. When supported by the rail Supporting an upper traveling portion capable of traveling along the rail portion, a rail portion formed on an upper side of the first beam member, and a lower traveling portion capable of traveling along the rail portion, the upper traveling portion, It is made by the connection traveling part provided with the connection member which connects a lower traveling part rotatably about a vertical axis.

  According to the present invention having such a feature, when the scaffold formed by the first beam member moves along the first hanger rail, when the first beam member faces an obstacle to move, the first beam The member can be moved under a second hanger rail installed so as to avoid the obstacle, and the first beam member can be moved along the second hanger rail to the rear side of the obstacle. The scaffold formed on the first beam member can be moved along the hanger rail installed on the rear side.

  As a result, even if there are obstacles that prevent movement, such as piers, the moving suspension scaffold can be moved easily and safely to shorten the construction period for inspection, painting, repair work, etc. And simplification of the construction work.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 2 is an explanatory diagram showing an entire installation state of the mobile suspension scaffold device according to the embodiment of the present invention. In this embodiment, one scaffold is formed by the first beam member 1 at the center of the bridge A, and another scaffold is formed by the second beam members 2 and 2 'on both sides of the bridge A is shown. However, the embodiment of the present invention is not particularly limited to this, and the first beam member 1 and the second beam member 2 can be constructed in a different form.

  In FIG. 2, the first beam member 1 installed at the center of the bottom surface of the bridge A forms a scaffold between a pair of vertically standing beam members, and extends along the longitudinal direction of the bridge A on the bottom surface of the bridge A. A pair of left and right first hanger rails 10a and 10b is installed, and a suspension support portion a is formed on each of the pair of beam members with respect to one first hanger rail 10a. A suspension support portion b is formed on each of the pair of beam members with respect to the hanger rail 10b, and the scaffold is extended and supported in a direction intersecting the first hanger rails 10a and 10b with a total of four suspension support portions. ing.

  On the other hand, the second beam member 2 installed on the side portion of the bridge A is similar to the first beam member 1 and forms a scaffold between a pair of vertically standing beam members. A pair of left and right second hanger rails 20c and 20d are installed on the bottom surface along the longitudinal direction of the bridge A, and a suspension support portion c is formed on each of the pair of beam members with respect to one second hanger rail 20c. In addition, a suspension support portion d is formed on each of the pair of beam members with respect to the other second hanger rail 20d, and the scaffolds are formed by a total of four suspension support portions as the second hanger rails 20c, 20d. It extends and supports in the direction that intersects.

  Here, one suspension support part a includes an upper traveling part 11a that is supported by the first hanger rail 10a and can travel along the first hanger rail 10a, and the upper traveling part 11a is a single first traveling part 11a. A pair (two) is provided on one hanger rail 10a. The other suspension support portion b is the same, and is provided with an upper traveling portion 11b supported by the first hanger rail 10b and capable of traveling along the first hanger rail 10b. A pair (two) of 11b is provided on one first hanger rail 10b.

  Furthermore, a rail portion 1A is formed on each upper side of the first beam member 1 along each upper side, and a pair of lower runs capable of supporting the rail portion 1A and traveling along each of the rail portions 1A. Parts 12a and 12b are provided, and a suspension support member 13a (13b) is provided for suspending and supporting one lower traveling part 12a (12b) from one upper traveling part 11a (11b). Each suspension support part a, b is configured.

FIG. 3 is an enlarged view showing the structure of the suspension support part a in detail. The first hanger rail 10a a rail having a cross-section of inverted T-shape, provided with a hook 10a _f to be engaged on the bottom surface which is formed in the engaging portion A _f of the bridges A, the waveform on the lower surface thereof rack teeth 10a ₀ is formed. Also, the same rack tooth 1A ₀ is formed on the upper surface of the rail portion 1A.

A pinion wheel 11a ₃ meshing with the rack teeth 10a ₀ of the first hanger rail 10a is rotatably mounted on the upper traveling portion 11a, and is supported in contact with the back side edge of the rack teeth 10a ₀ of the first hanger rail 10a. The support wheels 11a ₁ and 11a ₂ are rotatably mounted. Similarly, the lower run 12a, together with the pinion wheel 12a ₃ which meshes with the rack teeth 1A ₀ rail portion 1A are furnished rotatably, contact support on the back edge of the rack teeth 1A ₀ in rail portion 1A The support wheels 12a ₁ and 12a ₂ are rotatably mounted. The upper end of the suspension support member 13a is pivotally supported by the upper travel portion 11a, and the lower end of the suspension support member 13a is pivotally supported by the lower travel portion 12a, thereby lowering the lower travel portion 12a relative to the upper travel portion 11a. Is rotatably supported around a vertical axis.

  A rail portion 2A is also formed on the upper side of the second beam members 2 and 2 ', and the suspension support portions a and b for hanging and supporting the first beam member 1 and the second beam members 2 and 2' are suspended. The suspension support portions c, d, e, and f to be supported are all formed in the same structure (the suspension support portions b, c, and d are the upper travel portions 11b, 21c, 21d, and the lower travel portions 12b, 22c. 22d and suspension support members 13b, 23c, and 23d, respectively). Due to the structure of the suspension support portion, the first beam member 1 extending in the direction intersecting with the first hanger rails 10a and 10b and the second beam extending in the direction intersecting with the second hanger rails 20c and 20d. The member 2 can travel along the first hanger rails 10a and 10b and the second hanger rails 20c and 20d, and horizontally moves in a direction intersecting the first hanger rails 10a and 10b and the second hanger rails 20c and 20d. It can be done.

  Further, by setting the lengths of the suspension support members 23c and 23d, the lower side height of the second beam member 2 and the upper side height of the first member 1 are set to substantially the same height. And the rail part 2B is formed along the lower side of the 2nd beam member 2, and the connection traveling part 30 is supported by this rail part 2B so that driving | running | working is possible. Two connected traveling portions 30 are provided on each rail portion 2B of the second beam member 2 (four in total).

As shown in FIG. 4, the connected traveling unit 30 is formed by connecting an upper traveling unit 31 and a lower traveling unit 32 with a connecting member 32, and the lower traveling unit 32 rotates about a vertical axis with respect to the upper traveling unit 31. It is pivotally supported. Upper run 31, the support wheel 31a which is supported on the rail section 2B, provided with a 31b, are those comprising a pinion wheel 31c which meshes with the rack teeth 2A ₀ rail portions 2B, lower run 32, the rail portion 1A the support wheels 32a for supporting, provided with a 32b, are those comprising a pinion wheel 32c which meshes with the rack teeth 1A ₀ rail portion 1A. Further, the lower traveling portion 32 has an insertion opening 32A into which an end of the rail portion 1A can be inserted. By inserting the rail portion 1A of the first beam member 1 through the insertion opening 32A, the second traveling portion 32 is provided. The first beam member 1 can be connected to the lower side of the beam member 2, and the first beam member 1 can be suspended and supported under the second hanger rails 20c and 20d.

When using a mobile scaffolds such first beam member 1 to be formed in the second beam member 2, by moving the scaffold in the longitudinal direction and the width direction of the bridge A, the entire bottom surface of the bridges A between piers A ₀ Can be efficiently inspected, painted and repaired.

The first hanger rail 10a, so as to avoid the pier A ₀ that becomes an obstacle for the extending direction of the 10b, the first hanger rail 10a, the second hanger rail 20c and features to 10b, so 20d is installed the first beam member 1 second hanger rail 20c, is moved to 20d side, the second hanger rail 20c, by hanging support under 20d, shakes piers a ₀ that becomes an obstacle, piers a ₀ The first beam member 1 can be moved to the rear side.

  Hereinafter, a construction method using the movable suspension scaffold device including the first beam member 1 and the second beam member 2 described above will be described with reference to FIGS. 5 and 6.

As shown to Fig.5 (a), the 1st beam member 1 which extends a scaffold in the direction which cross | intersects 1st hanger rail 10a, 10b with respect to the installed left-right 1st hanger rail 10a, 10b is shown. The first hanger rails 10a and 10b are suspended and supported at support positions p ₁ , p ₂ , p ₃ and p ₄ . As described above, each of the support positions p _{1 to} p ₄ is formed by the upper traveling portions 11a and 11b and the upper traveling portions 11a and 11b are caused to travel with respect to the first hanger rails 10a and 10b. The scaffold formed on the first beam member 1 can be moved along the first hanger rails 10a and 10b.

Further, the rail portion 1A formed in the upper side of the first beam member 1, the lower traveling portion 12a below the supporting position p ₁ ~p _4, is supported by 12b, etc., lower run 12a relative to the rail portion 1A, The first beam member 1 is moved by moving the first beam member 1 horizontally in a direction intersecting the first hanger rails 10a and 10b with respect to the suspension support position on the upper side of the first beam member 1 by running 12b or the like. The scaffolds formed in (1) are movable in a direction intersecting the first hanger rails 10a, 10b.

Such first beam member 1 first hanger rail 10a, is moved along the 10b, the first beam member 1 reaches the front of the piers A _0, lower run to the first intermediate position of the beam member 1 The support positions p ₅ and p ₆ are formed, and the intermediate position of the first beam member 1 is supported by being directly suspended from the bridge A.

On the other hand, the first hanger rail 10a, so as to avoid the piers A ₀ is a obstacle for extending direction of 10b, the first hanger rail 10a, a pair of right and left in parallel in 10b second hanger rail 20c, 20d are installed ing. The second beam member 2 is suspended and supported by the second hanger rails 20c and 20d at four support positions q ₁ , q ₂ , q ₃ , and q _{4 including the} upper traveling portions 21c and 21d. The second beam member 2 is suspended and supported adjacent to the first beam member 1 with the effort of the pier A ₀ , and the lower side height of the second beam member 2 is substantially the same as the upper side height of the first beam member 1. The hanging height is set so that

Therefore, as shown in FIG. 5A, the second beam member 2 is moved slightly forward of the first beam member 1 to change the suspension support positions q _{1 to} q ₄ on the second hanger rails 20c and 20d. As a result, the second beam member 2 is turned in the direction indicated by the arrow. As a result, as shown in FIG. 5B, the longitudinal direction of the second beam member 2 intersects the longitudinal direction of the first beam member in a plane.

  Next, as shown by the arrow in FIG. 5 (b), the first beam member 1 is horizontally moved in the longitudinal direction, and formed on the lower side of the second beam member 1 as shown in FIG. 5 (c). The rail part 2A and the rail part 1A formed on the upper side of the first beam member 1 are connected by the connecting traveling part 30.

At this time, the rail portion 1A travels with respect to the lower traveling portion corresponding to the support positions p _{1 to} p ₆ to move the first beam member 1 horizontally, and the rail formed on the lower side of the second beam member 2. The above-mentioned connection is made by inserting the end of the rail portion 1A of the first beam member 1 into the insertion opening 32A (see FIG. 4) of the connection traveling portion 30 provided in the portion 2A. Connection positions r ₁ , r ₂ , r ₃ , r ₄ for supporting the first beam member 1 are formed. In this state, the scaffold formed on the first beam member 1 is suspended and supported under the second hanger rails 20c and 20d via the second beam member 2.

Next, the suspension support positions q _{1 to} q ₄ on the second hanger rails 20c and 20d are once changed to the rear, and the first beam member 1 and the second beam member 2 are moved in the direction of the arrow in FIG. Move. Further, the support positions q _{1 to} q ₄ are changed, and the connection positions r _{1 to} r ₄ where the first beam member is connected to the second beam member 2 are changed, as shown by the arrows in FIG. In this way, the first beam member 1 and the second beam member 2 are turned, and as shown in FIG. 5E, the longitudinal direction of the first beam member 1 is turned in the direction along the second hanger rails 20c and 20d.

Then, as shown in FIG. 6 (a), by moving the second hanger rail 20c which extends to the rear side of the pier A _0, the second beam member 2 along the 20d, the connected thereto the first beam member 1 is moved to the rear side of the pier a _0. By changing the support position q ₁ to q ₄ and the connecting position r ₁ ~r ₄ mentioned above, pivoting the first beam member 1 and the second beam member 2 in the direction of the arrow in FIG. 6 (a). As a result, as shown in FIG. 6B, the longitudinal direction of the first beam member 1 is turned in a direction intersecting with the second hanger rails 20c and 20d.

Next, in the state shown in FIG. 6 (b), as shown by an arrow, the first beam member 1 and the second beam member 2 in close proximity to the rear side of the pier A _0, a first beam member 1 in the longitudinal direction is moved horizontally along a pair of right and left hangers rails 10a which extends to the rear side of the pier a ₀ ', 10b' first beam member 1 is then hung to the support made.

In this case, first, support positions p ₅ ′ and p ₆ ′ composed of the lower traveling portion are formed at the center position of the bridge (see FIG. 6C). Then, the first beam member 1 is moved horizontally as indicated by the arrow in FIG. 6C, so that the end of the rail portion 1A of the first beam member 1 becomes the lower traveling portion at the support positions p ₅ ′ and p ₆ ′. insert. Thereafter, as shown in FIGS. 6D and 6E, support positions p ₁ ′, p ₂ ′, p ₃ ′, and hanger rails 10a ′ and 10b ′ extending to the rear side of the pier A ₀ are supported. The rail portion 1A of the first beam member 1 is supported by the lower traveling portion of p ₄ ′, and the second beam member 2 that has been disconnected is turned as indicated by an arrow, and the longitudinal direction thereof is the second hanger rails 20c, 20d. And support to be vertical.

According to method according to this embodiment, if when moving the moving scaffold formed in the first beam member first hanger rail 20c, along the 20d, the piers A ₀ that becomes an obstacle of movement were present also, it is possible to shakes piers a ₀ move the first beam member to the rear side of the pier a _0, there is no need to reassembled scaffolding every piers a _0, and advances the various construction by effectively moving the scaffold be able to.

It is explanatory drawing of a prior art. It is explanatory drawing which shows the whole construction state of the movable suspension scaffold apparatus which concerns on embodiment of this invention. It is explanatory drawing which shows the suspension support part in the movable suspension scaffold apparatus which concerns on embodiment of this invention. It is explanatory drawing which shows the connection traveling part in the mobile suspension scaffold apparatus which concerns on embodiment of this invention. It is explanatory drawing explaining the movable suspension scaffold construction method which concerns on embodiment of this invention. It is explanatory drawing explaining the movable suspension scaffold construction method which concerns on embodiment of this invention.

Explanation of symbols

1 the first beam member 2, 2 'second beam members 1A, 2A, 2B rail portion 1A _0, 2A _0, 10a ₀ rack teeth 10a, 10b first hanger rail 11a, 11b, 21c, 21d, 31 upper run 12a , 12b, 22c, 22d, 32 Lower travel parts 13a, 13b, 23d, 23d Suspension support members 20c, 20d Second hanger rail 30 Connection travel parts 11a ₁ , 11a ₂ , 12a ₁ , 12a ₂
31a, 31b, 32a, 32b Support wheel 11a ₃ , 12a ₃ , 31c, 32c Pinion wheel 32 Connecting member A Bridge A ₀ Bridge piers p ₁ , p ₂ , p ₃ , p ₄ , q ₁ , q ₂ , q ₃ , q ₄ support position r ₁ , r ₂ , r ₃ , r ₄ connection position

Claims (5)

A pair of left and right first hanger rails installed in the structure;
A pair of upper running portions supported on each of the first hanger rails and capable of running along each of the first hanger rails;
A first beam member extending left and right by the upper traveling portion on the left side and the upper traveling portion on the right side of the first hanger rail, and extending a scaffold in a direction intersecting the first hanger rail;
A pair of lower running portions that support the rail portion formed along each upper side of the first beam member and are capable of running along each of the rail portions;
A suspension support member that suspends and supports the lower traveling unit from the upper traveling unit, and
A pair of left and right second hanger rails installed on the structure alongside the first hanger rails so as to avoid obstacles to the extending direction of the first hanger rails;
A pair of upper running parts supported by each of the second hanger rails and capable of running along each of the second hanger rails;
A second beam member extending in a direction intersecting with the second hanger rail by being suspended and supported by the left upper traveling portion and the right upper traveling portion in the second hanger rail;
A rail part is formed along the lower side of the second beam member, and a connected traveling part supported to be able to travel on the rail part is provided.
A movable suspension scaffolding device characterized in that the first beam member is suspended and supported under the second hanger rail by connecting a rail portion formed on an upper side of the first beam member to the connection traveling portion. . The connected traveling portion is supported by a rail portion formed on the lower side of the second beam member and is capable of traveling along the rail portion, and a rail formed on the upper side of the first beam member. A lower traveling portion that supports the portion and can travel along the rail portion, and a connecting member that rotatably connects the upper traveling portion and the lower traveling portion around a vertical axis,
The movable suspension scaffold device according to claim 1, wherein an end of the rail portion of the first beam member can be inserted into the lower traveling portion.   2. The suspension height of the second beam member is set so that a height of a lower traveling portion of the connecting traveling portion and a height of a rail portion of the first beam member coincide with each other. Or the movable suspension scaffold apparatus described in 2. A pair of left and right first hanger rails are installed on the structure, and the left and right sides of the first beam member extending the scaffold in a direction crossing the first hanger rail are suspended and supported from each of the first hanger rails, The support position on the first hanger rail is moved along the first hanger rail, and the first beam member is moved in a direction intersecting the first hanger rail with respect to the suspension support position on the upper side of the first beam member. It is a movable suspension scaffold construction method in which the scaffold formed on the first beam member is moved horizontally in a direction along the first hanger rail and in a direction crossing the hanger rail by horizontally moving,
A pair of left and right second hanger rails are installed on the structure alongside the first hanger rail so as to avoid an obstacle with respect to the extending direction of the first hanger rail, and the first beam is placed in front of the obstacle. Adjoining the member, suspending and supporting the second beam member having a lower side height positioned at the same height as the upper side height of the first beam member on the second hanger rail;
Turning the second beam member by changing the suspension support position on the second hanger rail so that the longitudinal direction of the second beam member intersects the longitudinal direction of the first beam member; ,
Horizontally moving the first beam member in the longitudinal direction thereof, and connecting a rail portion formed on the lower side of the second beam member and a rail portion formed on the upper side of the first beam member;
Turning the longitudinal direction of the first beam member in a direction along the second hanger rail by changing the connection position between the rail portions and the suspension support position on the second hanger rail;
Moving the second beam member along the second hanger rail to move the first beam member coupled to the rear side of the obstacle;
Turning the longitudinal direction of the first beam member in a direction intersecting the second hanger rail by changing the connection position between the rail portions and the suspension support position on the second hanger rail;
And a step of horizontally moving the first beam member along a longitudinal direction and suspending and supporting the first beam member on a pair of left and right hanger rails extending to the rear side of the obstacle. Moving suspension scaffolding method to be. The support position on the first hanger rail is formed by an upper traveling portion that is supported by the first hanger rail and can travel along the hanger rail.
The suspension support position on the upper side of the first beam member is formed by a lower traveling part that supports the rail part formed on the upper side of the first beam member and can travel along the rail part,
An upper traveling portion supported by the second hanger rail and capable of traveling along the second hanger rail, and a rail portion formed on the upper side of the second beam member and supported along the rail portion. A lower traveling part, and a suspension support member having an upper end coupled to the upper traveling part and a lower end coupled to the lower traveling part,
The connection between the second beam member and the first beam member is supported by a rail portion formed on the lower side of the second beam member and is capable of traveling along the rail portion and the first beam. A lower traveling portion that supports the rail portion formed on the upper side of the member and that can travel along the rail portion; and a connecting member that rotatably connects the upper traveling portion and the lower traveling portion around a vertical axis. The moving suspension scaffolding method according to claim 4, wherein the moving suspension scaffolding method is performed by a connected traveling portion.

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