JP2008144511A - Lifting jig of panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve work efficiency by a structure which facilitates assembly and by secure fixation of a panel. <P>SOLUTION: The lifting jig 1 is used when arranging a plurality of ALC plates 2, 2, etc. in a frame of a building, and is provided with a pair of insertion bodies 3, an upper connecting member 5, a lower connecting member 6, and an insertion-body connecting member 7. The pair of insertion bodies 3 sandwitch both sides of the ALC plates 2, 2, etc., and the upper connecting member 5 connects the upper ends of the insertion body 3 to each other. Similarly, the lower connecting member 6 connects the lower ends of the insertion body 3 to each other. The insertion-body connecting member 7 connects a first insertion part T1 to a second insertion part T2 which are both constituted by the pair of insertion bodies, the upper connecting member 5, and the lower connecting member 6. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a panel lifting jig used when a panel is suspended on a wall portion of a building frame by a lifting machine such as a crane.

Conventionally, prefabricated concrete panels such as lightweight aerated concrete (ALC) panels and extruded cement boards are often used for building walls. For example, the ALC plate is formed in a predetermined shape in a factory in advance, and it is usual that the ALC plate is lifted and attached one by one on site. However, in a building with a large outer wall area, such as a high-rise building, a large number of ALC plates must be attached, which takes a lot of work and hinders the shortening of the construction period.
Therefore, Patent Document 1 discloses an ALC plate attachment method and an attachment used therefor, which can improve the efficiency of ALC plate attachment work and shorten the construction period.

Patent Document 1 forms an ALC unit in which a plurality of ALC plates are arranged in a plane by grounding work, and one side (frame mounting surface) of these ALC plates is fixed by a frame mounting member such as a long steel material. At the same time, the unit base is sandwiched and fixed to the other surface side of the ALC unit by a plurality of spacers. Then, the unit base is lifted with a wire or the like, and the ALC unit is transported to a predetermined position of the building housing, and the housing mounting member is fixed to the housing to complete the mounting of the ALC unit.
JP 2000-145154 A

  However, in Patent Document 1, if the fixed tightening portion (clamping portion) by the bumper is not securely fixed with a uniform tightening force, the bumper is loosened when the unit stand is lifted, and the unit stand On the other hand, the ALC unit may be displaced and the posture may be inclined. In this case, there is a problem that it takes time and labor to align the ALC unit whose posture is inclined with respect to the mounting portion of the ALC unit provided on the housing side in advance, and the working efficiency is lowered.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a panel lifting jig that can be easily assembled and can improve work efficiency by securely fixing the panel. .

In order to achieve the above object, the panel lifting jig according to the present invention is a panel lifting jig used when arranging a plurality of panels on a building frame, and the plurality of panels are arranged at a plurality of positions at predetermined intervals. A pair of sandwiching bodies, a first connecting member that fixes the upper end portions and the lower end portions of the pair of sandwiching bodies, and a sandwiching portion configured by the pair of sandwiching bodies and the first connecting member. Two connecting members are provided.
In the present invention, the plurality of panels and the sandwiching body are integrated by disposing a pair of sandwiching bodies on both side surfaces of the plurality of panels in the sandwiching portion and fixing them with the first connecting member. Further, by fixing the sandwiching portions with the second connecting member, it is possible to prevent the interval between the sandwiching portions from being narrowed when the panel is lifted together with the lifting jig.

In the panel lifting jig according to the present invention, it is preferable that a fixing bracket for fixing the pair of sandwiching bodies and the panel is provided.
In the present invention, by fixing the side surfaces of the plurality of panels and the sandwiching body, the plurality of panels and the lifting jig can be reliably fixed.

  According to the panel lifting jig of the present invention, the unit structure is easy to assemble, the sandwiching bodies are integrated by the second connecting member, and the plurality of panels and the lifting jig can be reliably fixed. Therefore, when a panel integrated with a lifting jig is lifted, the lifting jig and the panel do not shift and the panel posture does not tilt, making it easy to align when attaching to the chassis and improving work efficiency. Can be achieved.

Hereinafter, a panel lifting jig according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3 by taking a lightweight cellular concrete panel (hereinafter referred to as “ALC plate”) as an example.
1 is a front view showing a state in which a plurality of ALC plates are suspended using a lifting jig according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of the lifting jig and the ALC plate shown in FIG. FIG. 4A is a partially broken perspective view showing the structure of the clamping part, and FIGS. 4A and 4B are views for explaining a state in which the ALC plate is attached to the housing.

As shown in FIG. 1, the lifting jig 1 according to the present embodiment is applied to an operation in which an ALC plate 2 is lifted by a lifting machine such as a crane and attached to a predetermined position of a building frame. Here, the ALC plate 2 is in the shape of a rectangular plate made of lightweight aerated concrete, and the longitudinal direction of the ALC plate 2 is set in a horizontal direction with respect to a steel column made of a steel frame, and a plurality of the ALC plates 2 are attached in the vertical direction. It is done.
The arrangement of the ALC plates 2 will be described below assuming that the longitudinal direction of the ALC plates 2 is “horizontal direction” and the vertical direction when the ALC plates 2 are installed in the casing is “vertical direction”.

As shown in FIGS. 1 and 2, the lifting jig 1 includes a plurality of ALC plates 2, 2,... Arranged in a plane in the vertical direction by first and second sandwiching portions T <b> 1 and T <b> 2 (described later). It is a jig for lifting in a sandwiched state.
A pair of sandwiching bodies 3, 4 (3 ', 4') sandwiching both side surfaces 2a, 2b of the ALC plates 2, 2, ..., and upper ends 3a, 4a of the sandwiching bodies 3, 4 (3 ', 4') The upper connecting member 5 that connects each other, the lower connecting member 6 that similarly connects the lower end portions 3b and 4b, the pair of sandwiching bodies 3 and 4 (3 ', 4'), the upper connecting member 5, and the lower connecting member 6 includes a sandwiching member connecting member 7 (second connecting member) that connects the first sandwiching portion T1 and the second sandwiching portion T2 that are configured by 6. The upper connecting member 5 and the lower connecting member 6 correspond to the first connecting member of the present invention.
Here, each clamping body T1, T2 is arrange | positioned in the position which becomes substantially left-right symmetric across the center of the longitudinal direction of the ALC board 2, and both are arranged substantially parallel.

As shown in FIG. 3, in the present embodiment, the first sandwiching member 3 (3 ′) made of a long angle steel is used in one of the pair of sandwiching bodies 3, 4 (3 ′, 4 ′). On the other hand, a second clamping member 4 (4 ′) made of a long channel steel (channel steel) is used. The pair of sandwiching bodies 3, 4 (3 ′, 4 ′) are arranged with the longitudinal direction of each sandwiching member oriented in the direction orthogonal to the longitudinal direction of the ALC plate 2.
And as shown in FIG.1 and FIG.2, while a pair of clamping body 3 and 4 (3 ', 4') is arrange | positioned in the state which contacted the side surface 2a (2b) of the ALC board 2, its predetermined | prescribed It is fixed to the ALC plate 2 by a bolt 11 via a stopper metal fitting 10 (fixed metal fitting) welded to the position. Thereby, it can prevent that the ALC board 2 slip | deviates and falls at the time of a strong wind.

The upper connecting member 5 has a flat plate shape, one end of which is joined to the upper end portion 3a of the first sandwiching member 3, 3 'by welding, and the other end is bolt 12 to the upper end portion 4a of the second sandwiching member 4, 4'. Is detachably provided.
The lower connecting member 6 has a flat plate shape, and both ends thereof are detachably attached to the lower end portions 3b, 4b of the first holding members 3, 3 'and the second holding members 4, 4' by bolts 12. . The lower connecting member 6 has a function of supporting the ALC plates 2, 2,... From below when the ALC plates 2, 2,.

1 is made of a steel material such as a single pipe, and extends along the longitudinal direction of the ALC plate 2 at the upper end positions of the plurality of ALC plates 2, 2,. The part T1 and the second clamping part T2 are connected to each other. Specifically, the clamping part connecting member 7 is fixed to the upper connecting part 5 or the upper ends 3a, 4a of the clamping bodies 3, 4 (3 ', 4') by fixing means (not shown) such as clamps and bolts. . Thereby, each 1st, 2nd clamping part T1, T2 and several ALC board 2, 2, ... are integrated in the state fixed reliably, and when these are lifted, two clamping parts T1 are carried out. , T2 can be prevented from being narrowed.
Here, a configuration in which the plurality of ALC plates 2, 2,... And the lifting jig 1 are integrated will be described as an ALC unit U.

  As shown in FIG. 3, the upper connecting member 5 is a suspension receiver in which a locking hole 8a is formed between the first clamping member 3 (3 ′) and the second clamping member 4 (4 ′). The member 8 is fixed. The ALC unit U can be lifted by attaching a hanging jig 9 such as a shackle to the locking hole 8 a of the hanging receiving member 8 and hanging the hanging wire W.

  Further, as shown in FIG. 1 and FIG. 3, through the two end portions of one side surface (side surface 2 b on the first clamping member 3 side in the present embodiment) of the ALC plate 2, a metal fitting 22 ( Locking members 13 and 13 for attaching the ALC plate 2 are provided in FIG. As shown in FIG. 4A, the locking member 13 is a substantially Z-shaped plate in sectional view, and one end 13 a thereof is fixed to the ALC plate 2 by a bolt 14.

Next, a lifting method using the ALC unit U configured as described above and a construction method to be installed on the building frame will be described with reference to the drawings.
The ALC unit U shown in FIGS. 1 to 3 is integrally assembled in advance in, for example, a factory or an assembly yard near the site. In the assembling procedure, first, the second sandwiching members 4, 4 ′ are arranged in parallel on the floor or the gantry, and a plurality of ALC plates 2, 2,. At this time, each ALC plate 2 is arranged such that its longitudinal direction is perpendicular to the longitudinal direction of the second clamping members 4, 4 ′.

  Then, the first clamping members 3 and 3 'in a state where the upper coupling member 5 is fixed to the upper surface side (side surface 2b) of the arranged ALC plates 2, 2,... Are arranged, and the upper coupling member 5 and the second clamping member are arranged. 4 and 4 ′ are fixed by bolts 12 and lower ends 3b and 4b of first and second clamping members 3 and 3 ′ and second clamping members 4 and 4 ′ are fixed by lower connecting member 6 using bolts 12. To do. Then, as shown in FIG. 1, the first sandwiching portion T1 and the second sandwiching portion T2 are connected by the sandwiching portion connecting member 7, and the ALC plate 2 is fixed by the shift stopper 10 to form the ALC unit U. To do. The integrated ALC unit U is transported to the installation site by a truck or the like when assembled at a factory, for example.

  Next, at the installation site, the conveyed ALC unit U is lifted by a lifting means such as a crane. At this time, the lower end of each of the predetermined number of suspension wires W is connected to a suspension jig 9 such as a shackle, and the suspension jig 9 is hooked on the locking hole 8a of the suspension receiving member 8 and lifted (see FIG. 3). ).

  Next, as shown in FIG. 4A, the lifted ALC unit U is moved to a predetermined position of the casing 20, and one side surface 2b of the ALC plate 2 is preliminarily set to a predetermined position of the casing 20 (the column member 21 or the like). A receiving tool (not shown) provided at the position is aligned with a predetermined position so as to face the front surface 22a of the metal fitting 22 made of, for example, an L-shaped steel material. Then, as shown in FIG. 4B, the bolt 14 of the locking member 13 is loosened and the fixed end 13b of the locking member 13 is passed through the back surface 22b of the hardware 22 while being placed on the receiver. The ALC plate 2 and the locking member 13 are fixed with bolts 14. Thereby, the plurality of ALC plates 2, 2,... Are fixed to the housing 20.

  Thereafter, as shown in FIGS. 1 to 3, the bolt 11 that fixes the displacement stopper 10 and the ALC plate 2 is removed. Then, the bolt 12 that connects the lower connecting member 6 and the second clamping member 4, 4 ′ is removed, and the bolt 12 that connects the lower connecting member 6 and the first clamping member 3, 3 ′ is loosened. The lower connecting member 6 is horizontally rotated by approximately 180 degrees using the bolts 12 of the first clamping members 3 and 3 'as the rotation axis. Thereby, while being able to remove the ALC board 2 installed in the housing 20, it will be in the state which can lift the lifting jig 1 without trouble. Subsequently, the lifting jig 1 is lifted and lowered to the ground and used for the next lifting work.

As described above, by assembling the ALC unit U in the factory, the ground assembly work at the site can be omitted, and the construction period associated therewith can be shortened. Further, since a plurality of ALC plates 2, 2,... Can be installed at once in the building frame, the construction period can be greatly shortened as compared with the method of attaching the ALC plates 2 to the frame one by one.
In addition, when assembling the ALC unit U, the joint portion of each ALC unit U may be sealed, and the surface of each ALC unit U may be painted to improve work efficiency.

  As described above, the ALC plate lifting jig according to the present embodiment has a unit structure that is easy to assemble, and the first and second holding bodies 3 and 4 (3 ′, 4 ′) are connected to each other by the holding portion connecting member 7. Are integrated, and the plurality of ALC plates 2 and the lifting jig 1 can be reliably fixed. Therefore, when the ALC plate 2 integrated with the lifting jig 1 is lifted, the lifting jig 1 and the ALC plate 2 are not shifted and the posture of the ALC plate 2 is not tilted. Work is facilitated and work efficiency can be improved.

As mentioned above, although embodiment of the lifting jig of the ALC board by this invention was described, this invention is not limited to said embodiment, In the range which does not deviate from the meaning, it can change suitably.
For example, in the present embodiment, the first and second sandwiching portions T1 and T2 are two places. For example, when the length of the integrated ALC plate in the longitudinal direction (lateral direction) is large, three or more places are used. You may make it provide a clamping part in multiple places.
Further, for example, the number and shape of the ALC plates 2, 2... Integrated by the upper connecting member 5 and the lower connecting member 6 are not limited to the present embodiment. Also, the specific structures and shapes of the upper connecting member 5, the lower connecting member 6, the sandwiching portion connecting member 7, the shift stopper 10 and the like are not limited to those described above.

It is a front view which shows the state which suspended several ALC board using the lifting jig by embodiment of this invention. It is the sectional view on the AA line of the lifting jig and ALC board shown in FIG. It is a partially broken perspective view which shows the structure of a clamping part. (A), (b) is a figure explaining the state which attaches an ALC board to a housing.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lifting jig 2 ALC board 3, 4 Clamping body 5 Upper connection member (1st connection member)
6 Lower connecting member (first connecting member)
7 Nipping part connecting member (second connecting member)
10 Detachment bracket (fixing bracket)
T1, T2 clamping unit U ALC unit

Claims (2)

A panel lifting jig for arranging a plurality of panels on a building frame,
A pair of sandwiching bodies arranged at a plurality of positions with a predetermined interval between the plurality of panels; and
A first connecting member that fixes the upper end portions and the lower end portions of the pair of sandwiching bodies;
A second coupling member that couples the clamping parts constituted by the pair of clamping bodies and the first coupling member;
A panel lifting jig characterized in that is provided.   The panel lifting jig according to claim 1, wherein a fixing bracket for fixing the pair of sandwiching bodies and the panel is provided.

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