JP2022150582A - Hoisting tool and method of hoisting wall panel - Google Patents

Abstract

To provide a hoisting tool, which can temporarily fix a wall panel efficiently to a wire suspended from a heavy machine and is not detached from the wall panel even when the wire is loosened and a method of hoisting the wall panel, which realizes the hoisting of the wall panel without any difficulty since the hoisting tool is efficiently attached to the wall panel.SOLUTION: A hoisting tool 50 includes a hoisting metal fitting 10 attached to an upper edge 70a of a wall panel 70 and a hoisting jig 30 attached to/detached from the hoisting metal fitting 10 to be relatively movable. In a pulled state where the hoisting tool 30 is pulled by a wire 63, the hoisting jig 30 is engaged with the hoisting metal fitting 10. In a non-pulled state where the hoisting tool 30 is not pulled by the wire 63, the hoisting jig 30 enters the inside of the hoisting metal fitting 10 more than the pulled state.SELECTED DRAWING: Figure 3

Description

The present invention relates to lifting devices and methods for lifting wall panels.

Wall panels, including exterior wall panels and interior wall panels (inner wall panels such as parting walls and partition walls) that make up a building, are wall panels that are lifted by heavy machinery such as cranes after a frame structure with columns and beams is constructed. is transferred to the installation position, and the wall panel and the frame are joined by bolts or the like, whereby the wall panel is erected. When hoisting wall panels with heavy machinery, attach ring-shaped hangers firmly to the wall panel, and attach hooks attached to the ends of wires (including ropes, chains, etc.) suspended from heavy machinery. The wall panel is pulled up by hooking it on the hanger. Alternatively, a shackle is attached to the tip of a wire suspended from a heavy machine, and the wall panel is pulled up by attaching the shackle to a hanging metal fitting.

In the former hoisting method, in which the hook is hooked to the hoisting fitting, there is a sufficient risk that the catching hook will come off the hoisting fitting due to the loosening of the rope until the rope is hoisted upwards by heavy machinery and becomes taut. Until they get nervous, the worker is forced to check that the hanging hook is not detached from the hanging metal fitting, and if it is detached, re-hook it. At this time, since the hanger is attached to the upper end or upper part of the wall panel having a certain height, the worker has to rehang the hook on the scaffold. In addition, when the wall panel has a wide width of about 5P or more (P indicates a module, and can be set arbitrarily according to the module design specifications, between 800 mm and 1100 mm, for example, 910 mm width), the above scaffolding Therefore, it becomes necessary for a plurality of workers to rehang the hanging hook.

On the other hand, in the latter lifting method in which the shackle is attached to the sling fitting, it is troublesome to bolt the shackle to the sling fitting. When hoisting a wide wall panel as described above, the shackles are bolted to the sling fittings attached at multiple locations on the upper edge of the wall panel, so one worker can lift all the shackles. It takes a long time to fix the shackle to the sling fitting, and therefore multiple workers are required to fix the shackle in order to shorten the fixing time.

From the above, a wall panel can be efficiently temporarily fixed to a wire hanging from a heavy machine, and even if the wire is loose, the wall panel will not come off, and a lifting tool for the wall panel. There is a need for a method of lifting wall panels that provides for hassle-free lifting of wall panels through efficient installation of a wall panel.

Here, a hoisting tool and a hoisting method have been proposed that can suppress the occurrence of large deflections in the outer wall panel even when the vertically elongated outer wall panel for multiple stories is to be erected. The specific configuration of this lifting tool includes a first hook provided at a first height position of the object to be lifted, a second hook provided at a second height position lower than the first height position, and a second hook provided at a second height position lower than the first height position. A wire portion extending from a first hook portion to a second hook portion, and an engaging portion connected to the wire portion and engaged with the first hook portion while the object to be lifted is vertically raised. . Further, a specific configuration of this lifting method is as follows. This lifting method forms a state in which an object to be lifted is hung only at a first height position.

JP 2018-43859 A

The lifting tool described in Patent Document 1 is provided with a first hook portion and a second hook portion respectively for a first height position and a second height position, which are different height positions of an object to be lifted. Since the engaging portion that engages with the first hooking portion in a state in which the object to be lifted is vertically raised is connected to the wire portion that is stretched over the hooking portion, the wall panel or the like can be lifted. It is assumed that it will take time and effort to install the lifting tool to the object, and as described above, it is not clear whether the wall panel can be effectively temporarily fixed to the rope hanging from the heavy equipment.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is possible to efficiently temporarily fix a wall panel to a wire hanging from a heavy machine, and to prevent the wall panel from coming off even when the wire is loose. To provide a lifting tool and a method for lifting a wall panel which realizes the lifting of the wall panel without labor by efficiently attaching the lifting tool to the wall panel.

In order to achieve the above object, one aspect of the lifting tool according to the present invention is
a hanging bracket attached to the top edge of the wall panel;
a hanging jig that is attached and detached so as to be relatively movable with respect to the hanging metal fitting,
In a tension state in which the hanging jig is pulled by a wire, the hanging jig is engaged with the hanging fitting,
In a non-tensioned state in which the hoisting jig is not pulled by the wire, the hoisting jig is more embedded in the hoisting fitting than in the tensioned state.

According to this aspect, the hanging metal fitting attached to the upper end of the wall panel and the hanging jig attachable and detachable relative to the hanging metal fitting are provided, and the hanging jig is in a non-stretched state in which the wire is not pulled. Since the hoisting jig is more embedded in the hoisting fitting than in the tensioned state, it is possible to prevent the hoisting jig from being detached from the hoisting fitting even in the non-stretched state where the wire is not tense. The lifting tool formed by the metal fittings is prevented from coming off the outer wall panel. On the other hand, in a tensioned state in which the hanging jig is pulled by the wire, the outer wall panel is lifted through the lifting jig formed by the hanging jig and the hanging hardware by engaging the hanging jig with the hanging hardware. becomes possible. In addition, since the hanging jig attached to the wire hanging from the heavy machinery can be attached and detached in a relatively movable manner to the hanging metal fitting attached to the upper end of the wall panel, the hanging metal fitting and the hanging jig can be easily and efficiently connected. Therefore, the wall panel can be efficiently temporarily fixed to the rope suspended from the heavy equipment via the lifting tool of this aspect.

Also, in another aspect of the lifting device according to the present invention,
The hanging jig is
a hook on which the wire is hooked;
a vertical member extending from the hook;
a transverse member extending laterally at one end of the longitudinal member;
The hanging metal fitting is
A loose fitting hole, in which a part of the vertical member of the hanging jig and the horizontal member are loosely fitted, extends from one of the first vertical pieces. is opened across the bend,
The hanging fitting is fixed to the wall panel in a state in which the loose fitting hole is positioned above the upper end of the wall panel,
in the tensioned state, the cross member is locked to the bending portion;
It is characterized in that in said untensioned state said longitudinal member is wedged between two said first longitudinal pieces.

According to this aspect, the hoisting jig has a hook portion on which the wire is hooked, a vertical member extending from the hook portion, and a horizontal member that spreads laterally at one end of the vertical member, and the sling fitting is bent It has a pair of first vertical pieces that are continuous through a part, and a loose fitting hole in which a part of the vertical member and the horizontal member of the hanging jig are loosely fitted is formed from one of the first vertical pieces to the bent portion. The hanger is fixed to the wall panel with the free fitting hole positioned above the upper end of the wall panel, so that the horizontal member is placed against the bent portion in the tensioned state. In the non-tensioned state, by inserting the vertical member between the two first vertical pieces, the area other than the hook portion of the hanging jig can be accommodated inside the hanging fitting. can be put into a lifting standby state.

Also, in another aspect of the lifting device according to the present invention,
The wall panel is an exterior wall panel comprising a ventilation layer,
The hanging fitting further has a pair of second vertical pieces extending downward from one of the first vertical pieces and orthogonal to the first vertical pieces,
A first bolt hole is formed at a position corresponding to each of the pair of second vertical pieces,
A furring strip having a second bolt hole is provided in the ventilation layer,
The furring strip is sandwiched between the pair of second vertical pieces, and the hanging hardware is fixed to the outer wall panel by inserting bolts through the first bolt hole and the second bolt hole. and

According to this aspect, the wall panel to be lifted is the outer wall panel provided with the ventilation layer, and the hanging hardware extends downward from one of the first vertical pieces and is perpendicular to the first vertical piece. It further has a second vertical piece, and the pair of second vertical pieces sandwich the furring on the ventilation layer and are bolted to each other, so that the ventilation layer of the outer wall panel can be effectively used, and the hanging hardware can be attached to the outer wall panel. can be effectively fixed to

Also, in another aspect of the lifting device according to the present invention,
A claw projecting in the direction of the other first vertical piece is provided below the loose fit hole formed in one of the first vertical pieces,
When the hanging jig is pulled by the wire and the horizontal member moves upward between the pair of first vertical pieces, the claw prevents the horizontal member from coming out of the loose fitting hole. It is characterized by being designed to be

According to this aspect, the hook projecting in the direction of the other first vertical piece is provided below the loose fit hole formed in one of the first vertical pieces, so that the hanging jig can be attached to the wire. When the horizontal member is moved upward between the pair of first vertical pieces by being pulled by the claw, the claw can effectively prevent the horizontal member from slipping out of the loose fitting hole.

In addition, one aspect of the wall panel lifting method according to the present invention includes:
a hanging bracket attached to the top edge of the wall panel;
a preparation step of preparing a lifting tool having a lifting jig that is detachably attached to and detached from the lifting metal fitting so as to be relatively movable;
a step of attaching the hanging bracket to the wall panel;
a hanging jig attaching step of attaching the hanging jig on which the wire is hooked so as to be relatively movable with respect to the hanging fitting;
a lifting step of lifting the wire and lifting the wall panel via the lifting tool;
In the lifting step,
In a non-tensioned state in which the hoisting jig is not pulled by a wire, the hoisting jig is deeper inside the hoisting fitting than in the tensioned state, and in a tensioned state in which the hoisting jig is pulled by a wire. is characterized in that the hanging jig is engaged with the hanging fitting.

According to this aspect, the hoisting tool of the present invention is prepared in the preparation step, and the hoisting jig is relatively moved in the hoisting jig attaching step with respect to the hoisting bracket attached to the wall panel in the hoisting bracket attaching step. In a hoisting process for hoisting a wall panel through a hoisting tool that is freely attached, the hoisting tool is inserted into the hoisting fixture in a non-tensioned state in which the hoisting fixture is not pulled by a wire, rather than in a tensioned state. As a result, even in a non-tensioned state where the wire is not tense, the lifting jig is prevented from coming off from the hanging fitting, and the lifting fitting formed by the hanging fitting and the hanging fitting is prevented from coming off from the outer wall panel.

On the other hand, in the hoisting process, in a tension state where the hoisting jig is pulled by the wire, the hoisting jig is engaged with the hoisting metal fitting, so that the hoisting jig is formed by the hoisting jig and the hoisting metal fitting. It becomes possible to lift the outer wall panel. In addition, the wire suspended from the heavy machinery is attached to the hanging hardware attached to the wall panel so that the wire suspended from the heavy machinery is relatively movable. The wall panel can be efficiently temporarily fixed via the lifting tool.

In another aspect of the wall panel lifting method according to the present invention,
In the step of attaching a plurality of hanging metal fittings, the plurality of hanging metal fittings are mounted at intervals on the upper end of the wall panel;
It is characterized in that, in the hanging jig attaching step, the hanging jig is attached to each of the hanging metal fittings so as to be relatively movable.

According to this aspect, in the step of attaching a plurality of hanging metal fittings, a plurality of hanging metal fittings are attached to the upper end of the wall panel at intervals, and in the step of attaching the hanging metal fittings, the hanging metal fittings are moved relative to each of the hanging metal fittings. By freely attaching the wires, the wires can be efficiently attached to the plurality of hanging fittings fixed to the wall panel via the plurality of hanging jigs. Therefore, even if the object to be lifted is a wide wall panel, the wire can be temporarily fixed to the wall panel by one worker via a plurality of lifting tools.

In another aspect of the wall panel lifting method according to the present invention,
The wall panel is an outer wall panel, and the outer wall panel has a structure in which an outer wall surface material, a ventilation layer formed by furring strips, and an outer wall frame having a heat insulating material inside are laminated at least in the wall thickness direction. have
The method for lifting the wall panel further includes a step of removing the lifting jig after the step of lifting,
In the hanging metal fitting mounting step, a plurality of hanging metal fittings are fixed to the furring strip in the ventilation layer with the upper end of the hanging metal fitting projecting upward from the upper end of the wall panel. Attaching a plurality of said hanging jigs hooked on a plurality of said wires suspended from a hanging bar extending from the above to the corresponding said hanging fittings,
In the step of removing the hanging jig, the hanging jig is removed from each of the hanging metal fittings, the hanging metal fittings are left on the wall panel, and the hanging metal fittings are used as positioning members when installing the outer wall panel on the upper floor. It is characterized by being used as

According to this aspect, the wall panel to be lifted is the exterior wall panel having the ventilation layer, and the ventilation layer of the exterior wall panel can be effectively used to efficiently fix the hanging bracket to the exterior wall panel, Furthermore, in the step of removing the hanging jig following the lifting step, the hanging metal fitting attached to the ventilation layer of the outer wall panel is left on the wall panel in a state in which the upper end of the hanging metal fitting protrudes upward from the upper end of the wall panel. By using it as a positioning member when installing the outer wall panel on the upper floor, even when installing the outer wall panel on the upper floor from the inside of the room, it realizes precise surface alignment of the outer wall materials on the lower and upper floors. can.

As can be understood from the above description, according to the hoisting tool and wall panel hoisting method of the present invention, the wall panel can be efficiently temporarily fixed to the wire suspended from the heavy machine, and the wire can be loosened. To provide a lifting tool which does not come off from a wall panel even when a wall panel is attached, and a method for lifting a wall panel which realizes lifting of the wall panel without labor by efficiently attaching the lifting tool to the wall panel.

1 is an exploded perspective view of an example of a lifting tool according to an embodiment, and a process diagram of an example of a method for lifting a wall panel according to an embodiment. FIG. FIG. 3 is a front view showing a state in which a plurality of hanging metal fittings are attached to the upper end of an outer wall panel to be lifted, and a hanging jig is attached to a plurality of wires suspended from a hanging bar suspended by a heavy machine. FIG. 1 is a diagram showing an example of a lifting tool according to an embodiment in a non-stretched state, in which a lifting jig is attached to a lifting fitting so as to be relatively movable, and a wall panel according to the embodiment following FIG. It is a process drawing of an example of the lifting method of. FIG. 4 is a vertical cross-sectional view for explaining the movement of the horizontal member of the hanging jig inside the hanging bracket when the hanging jig is pulled upward by the wire, and is the wall panel according to the embodiment following FIG. It is a process drawing of an example of the lifting method of. It is a figure which shows the pulling state by the wire of an example of the lifting tool which concerns on embodiment. It is a front view which shows the state by which the outer wall panel is lifted. FIG. 6 is a process diagram of an example of the wall panel lifting method according to the embodiment, following FIGS.

Hereinafter, an example of a lifting tool according to an embodiment and a method of lifting a wall panel will be described with reference to the accompanying drawings. In addition, in the present specification and drawings, substantially the same components may be denoted by the same reference numerals, thereby omitting duplicate descriptions.

[Lifting tool according to embodiment and wall panel lifting method]
An example of a lifting tool according to an embodiment and a method of lifting a wall panel will be described with reference to FIGS. 1 to 7. FIG. Here, FIGS. 1 to 7 are process diagrams of the wall panel lifting method according to the embodiment. Further, FIG. 1 is an exploded perspective view of an example of a hoisting tool according to the embodiment, and FIG. 3 is a hoisting tool according to the embodiment, in which the hoisting tool is attached to the hoisting metal so as to be relatively movable. FIG. 5 is a diagram showing an example of a tool in a non-tensioned state, and FIG. 5 is a diagram showing an example of a lifting tool according to an embodiment in a pulled state by a wire.

The illustrated hoisting tool 50 has a hoisting fixture 10 attached to an upper end 70a of an outer wall panel 70 (an example of a wall panel) and a hoisting fixture 30 attached to and detached from the hoisting fixture 10 so as to be relatively movable.

As shown in FIG. 1, the hanging jig 30 includes a hooking portion 33 having a ring ring 33a on which a wire 63 is hooked, a vertical member 31 extending from the hooking portion 33, and one end of the vertical member 31 spreading laterally. cross member 32;

The vertical member 31, the horizontal member 32, and the hooking portion 33 in the illustrated example are all made of round steel, and are welded together to form the hanging jig 30. As shown in FIG. Incidentally, for example, a hanging jig having vertical members, horizontal members, and hooks may be formed by cutting flat steel. In addition, in the illustrated hanging jig 30, the ring ring 33a of the hook portion 33 faces the direction in which the horizontal member 32 extends. You can face it.

On the other hand, the hanging metal fitting 10 is formed of a steel plate and has a pair of first vertical pieces 11 and 12 that are continuous via a bent portion 13 . and vertical member 31 are loosely fitted in the X1 direction and the X2 direction, respectively. More specifically, a horizontal member insertion hole 16 is formed in one of the first vertical pieces 11 , and a vertical member insertion hole 17 communicating with an intermediate position of the horizontal member insertion hole 16 is formed over the bent portion 13 . .

In the first vertical piece 11, a pair of cutouts 18 are provided below the horizontal member insertion hole 16, and the piece between the pair of cutouts 18 is bent toward the other first vertical piece 12 to form a claw. 19 is formed.

The other first vertical piece 12 forming a pair at a distance from the first vertical piece 11 is provided with a horizontal notch 14 below the bent portion 13 , and the steel plate is connected to the first vertical piece 11 via the notch 14 . A pair of second vertical pieces 21 orthogonal to the first vertical piece 11 are formed by bending toward the vertical piece 11 side. The pair of second vertical pieces 21 abut against the back surface of the first vertical piece 11 (or extend to the vicinity of the back surface), and the pair of first vertical pieces 11 and 12 and the pair of second vertical pieces 21 substantially A rectangular parallelepiped internal space is formed.

As described above, the illustrated hanger 10 is formed by cutting and bending a single steel plate. The first vertical pieces 11 and 12 and the second vertical piece 21 may be formed separately and welded to each other.

A first bolt hole 22 is opened at each corresponding position of the pair of second vertical pieces 21, and a bolt 25 is inserted through both of the first bolt holes 22 and tightened with a nut 26. .

In the wall panel lifting method according to the embodiment, first, the lifting tool 50 shown in FIG. 1 is prepared (preparation step).

As shown in FIG. 2, the wall panel to be lifted in the illustrated example is a relatively wide outer wall panel 70, the width t1 of which is, for example, about 5P or more and has a width of about 4 m to 8 m. Therefore, when lifting the outer wall panel 70, a plurality of (four in the illustrated example) hanging metal fittings 10 are attached to the upper end 70a thereof. The outer wall panel to be lifted may be of a narrow width of about 2 m, and the number of hanging metal fittings 10 to be attached is set according to the width. In addition to the outer wall panels, objects to be lifted may be inner wall panels such as parting walls and partition walls.

A wire 61 is suspended from a heavy machine such as a crane (not shown). A plurality of (four in the illustrated example) hoisting jigs 30 corresponding to the respective hoisting metal fittings 10 are attached via wires 63 and suspended.

Here, with reference to FIG. 4, the configuration of the exterior wall panel 70 of the illustrated example will be described. The outer wall panel 70 is an outer wall panel forming, for example, a two-by-four house, and is composed of an outer wall surface material 71, a ventilation layer 72 formed by furring strips 73, plywood 74, and a heat insulating material 76 such as glass wool inside in order from the outside. It has a configuration in which the filled outer wall frames 75 are laminated in the wall thickness direction. The outer wall material 71 is formed of, for example, a ceramic siding board, a tiled board, or the like. OSB (Oriented Strand Board, structural panel) or the like is applied to the plywood 74 . Incidentally, instead of the plywood 74, an outer heat insulating material such as a glass wool board may be applied.

The upper end 75a of the outer wall frame 75 of the outer wall panel 70 is positioned downwardly from the upper end 70a of the outer wall panel 70. The upper end 75a forms a girdle and supports the floor of the upper floor. A plurality of lattice beams 80 are mounted, forming a . The lattice beam 80 is composed of an upper chord member 81, a lower chord member 82, and a brace member 83 which is a diagonal member.

As shown in FIG. 4, from the upper end 70a of the outer wall panel 70 to the upper end of the lattice beam 80, the entire upper end level is set at substantially the same level.

As shown in FIG. 3, the hanger 10 is installed on the ventilation layer 72 so that the furring strip 73 forming the ventilation layer 72 is sandwiched between the pair of second vertical pieces 21 . A second bolt hole 73a is formed in the furring strip 73, the first bolt hole 22 of the second vertical piece 21 and the second bolt hole 73a are aligned, and the bolt 25 is inserted into both bolt holes 22, 73a. The sling fitting 10 is fixed to the furring strip 73 (outer wall panel 70) by being inserted and tightened by the nut 26. As shown in FIG. Although not shown in the drawings, if the object to be lifted is an inner wall panel, it is possible to apply a hanging bracket that does not have the second vertical piece and has one of the first vertical pieces bolted to the inner wall panel.

As shown in FIGS. 2 and 4, when the sling fitting 10 is fixed to the furring strip 73, the loose fitting hole 15 formed in the first vertical piece 11 is positioned above the upper end 70a of the outer wall panel 70. The horizontal member 32 and the vertical member 31 of the hanging jig 30 are aligned with each other so that a portion of the horizontal member 32 and the vertical member 31 can be inserted into the loose fitting hole 15 (the above is the step of attaching the hanging member).

Next, as shown in FIG. 3, the horizontal member 32 and the vertical member 31 of the hanging jig 30 to which the wire 63 is hooked are attached to the loose fitting holes 15 of the hanging fitting 10 fixed to the furring strip 73 . When a part of the hanging jig 30 is inserted, the vertical member 31 and the horizontal member 32 drop downward, and the horizontal member 32 is lowered in a posture in which the upper hook portion 33 projects from above the bent portion 13 of the hanging metal fitting 10 . 32 is placed, for example, on the upper edge of the lower furring strip 73 . As is clear from FIG. 3, the hanging jig 30 is attached to the hanging metal fitting 10 so as to be relatively movable.

FIG. 3 shows a non-stretched state in which the hanging jig 30 is not stretched by the wire 63 . In this non-tensioned state, the hoisting jig 30 is deeper inside the hoisting metal fitting 10 than in the tensioned state of the hoisting jig 30 described below with reference to FIG.

Next, as shown in FIG. 4 , the hanging bar 62 and the wires 63 are lifted by a heavy machine (not shown), so that the hanging jig 30 relatively moves upward inside the hanging fitting 10 . FIG. 4 shows the horizontal member 32 in the process of relative movement by a dashed line. Finally, the horizontal member 32 is locked inside the bent portion 13 of the lifting member 10, and the lifting member 50 is lifted upward by the tension P. The solid line indicates the state of being pulled.

The horizontal member 32 at the initial position (lowest position) of the hoisting jig 30 in a non-tensioned state hits the claw 19 protruding inward as the hoisting jig 30 moves upward in the X3 direction. touch. Then, after the horizontal member 32 is pushed in the X4 direction from the abutted pawl 19 toward the other first vertical piece 12 side, it moves further upward in the X5 direction and is accommodated inside the bent portion 13 and locked. be. FIG. 5 shows a state in which the horizontal member 32 of the hoisting jig 30 is locked inside the bent portion 13 of the hoisting device 10 as a whole of the hoisting device 50 . It shows the tension condition being pulled.

In this way, when the hanging jig 30 is pulled by the wire 63 and the horizontal member 32 moves upward between the pair of first vertical pieces 11 and 12, the hook 19 below the loose fitting hole 15 is pulled. As a result, the horizontal member 32 can be effectively prevented from slipping out of the loose fitting hole 15 in the process of moving the horizontal member 32 upward.

As shown in FIG. 6, the wide outer wall panel 70 is lifted upward via four lifting tools 50 fixed to the upper end 70a of the outer wall panel 70, each wire 63, and a suspension bar 62 that suspends them. It is lifted in the X6 direction (above, lifting process).

The lifted exterior wall panel 70 is transferred to a frame (not shown) having columns, beams, etc., and is attached to the frame by bolting or the like to the frame. FIG. 7 shows, for example, a state in which the outer wall panel 70 of the first floor is already attached to the framework, and the lattice beams 80 are installed on the outer wall frame 75 that constitutes the outer wall panel 70 .

Before and after installing the lattice beam 80, the suspension jig 30 is removed from each suspension metal fitting 10 fixed to the upper end 70a of the outer wall panel 70.例文帳に追加

Then, as shown in FIG. 7, the hanger 10 is left fixed to the outer wall panel 70 with the upper side of the hanger 10 protruding from the upper end 70a of the outer wall panel 70 .

As is clear from FIG. 7, the entire area from the upper end 70a of the outer wall panel 70 to the upper end of the lattice beam 80 is substantially at the same level. is doing.

In this state, the outer wall panel 70 on the upper floor (for example, the second floor) is erected. As shown in FIG. 7, the structure below the wall panel 70 is such that the lower end of the furring strip 73 in the ventilation layer 72 is inserted upward, and a lower gap sufficient to accommodate a portion of the protruding hanger 10 is provided. 73b.

As shown in FIG. 7, the outer wall panel 70 on the upper floor is dropped downward in the X7 direction by inserting the lower gap 73b into the hanging metal fitting 10 protruding upward. The outer wall panel 70 on the upper floor can be precisely face-to-face with 70 . For example, when installing the outer wall panel 70 on the upper floor where the worker is inside the room and is dropped (thus, when it is difficult to match the outer wall panel 70 on the outdoor side), the effect is remarkable.

According to the illustrated lifting tool 50 and the wall panel lifting method using this lifting tool 50, the wall panel 70 can be efficiently temporarily fixed to the wires 61 and 63 suspended from the heavy machinery. In addition, even when the wire 63 is loose, the hanging jig 30 directly connected to the wire 63 does not come off (or is difficult to come off) from the hanging metal fitting 10 fixed to the wall panel 70. As a result, the outer wall panel 70 The hoisting tool 50 does not come off.

Furthermore, the wall panel 70 can be attached to the wall panel 70 by a simple method of inserting the hanging jig 30 suspended from the wire 63 into the loose fitting hole 15 of the hanging fitting 10 fixed to the upper end 70a of the wall panel 70. Since the lifting tool 50 can be efficiently attached, it is possible to lift the wall panel 70 without much effort.

It should be noted that other embodiments may be possible in which other components are combined with the configurations described in the above embodiments, and the present invention is not limited to the configurations shown here. Regarding this point, it is possible to change without departing from the gist of the present invention, and it can be determined appropriately according to the application form.

10: Hanging fitting 11, 12: First vertical piece 13: Bent part 14: Notch 15: Loose fitting hole 16: Horizontal member insertion hole 17: Vertical member insertion hole 18: Notch 19: Claw 21: Second vertical piece 22: First bolt hole (bolt hole)
25: bolt 26: nut 30: hanging jig 31: vertical member 32: horizontal member 33: hook 50: lifting device 61: wire 62: hanging bar 63: wire 70: outer wall panel (wall panel)
70a: upper end 71: outer wall surface material 72: ventilation layer 73: furring strip 73a: second bolt hole (bolt hole)
73b: Lower Gap 74: Plywood 75: Exterior Wall Frame 75a: Upper End 76: Heat Insulating Material 80: Lattice Beam 81: Upper Chord 82: Lower Chord 83: Wall

Claims (7)

a hanging bracket attached to the top edge of the wall panel;
a hanging jig that is attached and detached so as to be relatively movable with respect to the hanging metal fitting,
In a tension state in which the hanging jig is pulled by a wire, the hanging jig is engaged with the hanging fitting,
A hoisting tool characterized in that in a non-tensioned state in which the hoisting jig is not pulled by a wire, the hoisting jig is deeper inside the hoisting fitting than in the tensioned state. The hanging jig is
a hook on which the wire is hooked;
a vertical member extending from the hook;
a transverse member extending laterally at one end of the longitudinal member;
The hanging metal fitting is
A loose fitting hole, in which a part of the vertical member of the hanging jig and the horizontal member are loosely fitted, extends from one of the first vertical pieces. is opened across the bend,
The hanging fitting is fixed to the wall panel in a state in which the loose fitting hole is positioned above the upper end of the wall panel,
in the tensioned state, the cross member is locked to the bending portion;
2. Lifting device according to claim 1, characterized in that in the untensioned state the stringer is wedged between two of the first longitudinal pieces. The wall panel is an exterior wall panel comprising a ventilation layer,
The hanging fitting further has a pair of second vertical pieces extending downward from one of the first vertical pieces and orthogonal to the first vertical pieces,
A first bolt hole is formed at a position corresponding to each of the pair of second vertical pieces,
A furring strip having a second bolt hole is provided in the ventilation layer,
The furring strip is sandwiched between the pair of second vertical pieces, and the hanging hardware is fixed to the outer wall panel by inserting bolts through the first bolt hole and the second bolt hole. 3. The lifting device according to claim 2, wherein: A claw projecting in the direction of the other first vertical piece is provided below the loose fit hole formed in one of the first vertical pieces,
When the hanging jig is pulled by the wire and the horizontal member moves upward between the pair of first vertical pieces, the claw prevents the horizontal member from coming out of the loose fitting hole. 4. Lifting device according to claim 2 or 3, characterized in that it is adapted to be a hanging bracket attached to the top edge of the wall panel;
a preparation step of preparing a lifting tool having a lifting jig that is detachably attached to and detached from the lifting metal fitting so as to be relatively movable;
a step of attaching the hanging bracket to the wall panel;
a hanging jig attaching step of attaching the hanging jig on which the wire is hooked so as to be relatively movable with respect to the hanging fitting;
a lifting step of lifting the wire and lifting the wall panel via the lifting tool;
In the lifting step,
In a non-tensioned state in which the hoisting jig is not pulled by a wire, the hoisting jig is deeper inside the hoisting fitting than in the tensioned state, and in a tensioned state in which the hoisting jig is pulled by a wire. Then, a method for lifting a wall panel, wherein the lifting jig is engaged with the hanging fitting. In the step of attaching a plurality of hanging metal fittings, the plurality of hanging metal fittings are mounted at intervals on the upper end of the wall panel;
6. The method of lifting a wall panel according to claim 5, wherein in the step of attaching the hanging jig, the hanging jig is attached to each of the hanging fittings so as to be relatively movable. The wall panel is an outer wall panel, and the outer wall panel has a structure in which an outer wall surface material, a ventilation layer formed by furring strips, and an outer wall frame having a heat insulating material inside are laminated at least in the wall thickness direction. have
The method for lifting the wall panel further includes a step of removing the lifting jig after the step of lifting,
In the hanging metal fitting mounting step, a plurality of hanging metal fittings are fixed to the furring strip in the ventilation layer with the upper end of the hanging metal fitting projecting upward from the upper end of the wall panel. Attaching a plurality of said hanging jigs hooked on a plurality of said wires suspended from a hanging bar extending from the above to the corresponding said hanging fittings,
In the step of removing the hanging jig, the hanging jig is removed from each of the hanging metal fittings, the hanging metal fittings are left on the wall panel, and the hanging metal fittings are used as positioning members when installing the outer wall panel on the upper floor. A method for lifting a wall panel according to claim 5 or 6, characterized in that it is used as a

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