JP7642467B2 - Panel structure, temporary fixing members and production stand during construction - Google Patents

Description

This invention relates to a panel structure, temporary fixing member, and production stand during construction.

Patent Document 1 discloses a large-format exterior wall panel and a structure for attaching this large-format exterior wall panel to the framework of a building. The large-format exterior wall panel comprises a panel frame and multiple horizontally elongated exterior wall surface materials, including insulating material, attached to the panel frame and arranged vertically. The panel frame also comprises an outer perimeter frame section in which left and right vertical frame materials and upper and lower horizontal frame materials are assembled into a rectangle, and multiple vertical furring strips that are spaced apart from each other in the width direction on the outer perimeter frame section and have their upper and lower ends joined to the upper and lower horizontal frame materials.

Patent Document 2 also discloses a protective device that can be installed at each building opening, allowing construction work to be carried out on the openings without the need for scaffolding.

JP 2016-113839 A JP 2006-152695 A JP 2020-165245 A JP 2020-165246 A

However, none of the above patent documents discloses an efficient construction method for a building having an exterior wall in which a plurality of exterior wall materials are arranged one above the other. In addition, the above patent documents do not disclose how to close a temporary opening provided in an exterior wall.
Although Patent Documents 3 and 4 disclose a method for closing a temporary opening provided in an exterior wall, there is a demand for further efficiency in the method for closing the temporary opening.

In view of the above circumstances, this invention aims to provide a panel structure, temporary fixing member, and fabrication stand during construction that can efficiently close temporary openings in exterior walls when constructing a building having an exterior wall with multiple exterior wall surface materials arranged one above the other.

To solve the above problems, the panel structure during construction of this invention is characterized in that only the upper side of the exterior wall surface material is screwed to the vertical furring strip members on the back side of the exterior wall surface material, and the lower side of the vertical furring strip members is temporarily fixed to the lower side of the exterior wall surface material by temporary fixing members.

With the above configuration, the temporary fixing member can prevent the lower end of the vertical furring strip from swinging. This eliminates problems caused by the swinging of the vertical furring strip, and allows the temporary opening in the exterior wall to be closed efficiently.

The temporary fixing member may have an attachment portion that is attached to the vertical furring strip member and an engagement portion that engages with the lower portion of the exterior wall surface material. This makes it possible to prevent holes in the exterior wall surface material from being created when the lower portion of the vertical furring strip member is temporarily fastened to the exterior wall surface material with a temporary screw and then the temporary screw is removed.

The mounting portion may be attached to the vertical furring strip by a fastening member. This allows the mounting portion to be easily attached to the vertical furring strip by the fastening member.

The mounting portion has four contact surfaces that contact four different inner surfaces of the vertical furring strip member, and two of the four contact surfaces are formed on a rotating portion, and the two contact surfaces may contact two different inner surfaces of the vertical furring strip member by the rotating action of the rotating portion. In this way, the mounting portion is attached to the vertical furring strip member by the surface contact of the four contact surfaces, so it is not necessarily necessary to use the fastening member.

Alternatively, the mounting part may have a pin part that fits into an insertion hole of the vertical furring strip member and an elastic member that operates the pin part, and the mounting part may be attached to the vertical furring strip member by fitting the pin part into the insertion hole by operating the pin part. In this way, the mounting part can be easily attached to the vertical furring strip member by operating the elastic member.

The temporary fixing member of the present invention is a temporary fixing member that is attached to the panel structure during construction, and is characterized by having an attachment portion that is attached to the vertical furring strip member of the panel structure during construction, and an engagement portion that engages with the lower portion of the exterior wall surface material of the panel structure during construction. With this temporary fixing member, when the lower side of the vertical furring strip member is temporarily fastened to the exterior wall surface material with a screw, it is possible to prevent holes from being made in the exterior wall surface material when the temporary screw is later removed.

The manufacturing stand of the present invention is a manufacturing stand for manufacturing the above-mentioned panel structure during construction,
A placement surface portion for placing and fixing the vertical furring strip members and placing the exterior wall surface material on the vertical furring strip members;
A rotation support part that supports the placement surface part so that the placement surface part can rotate about a direction perpendicular to the longitudinal direction of the vertical furring strip member and switches between a first rotation position in which the placement surface part is horizontal and a second rotation position in which the placement surface part is upright;
A vertical positioning portion that abuts against an upper edge portion of the exterior wall surface material to determine a vertical position of the exterior wall surface material;
a movable horizontal positioning portion that determines a horizontal position of the exterior wall surface material by contacting a side surface portion of the exterior wall surface material in a fixed state, and that moves away from the side surface portion;
The present invention is characterized by comprising:

With the above configuration, in the first rotational position, the exterior wall surface material can be placed on the vertical furring strip members placed and fixed on the placement surface, and the exterior wall surface material can be fixed to the vertical furring strip members by driving screws into the upper side of the vertical furring strip members. In addition, in this first rotational position, the lower side of the vertical furring strip members can be temporarily fixed to the lower side of the exterior wall surface material by temporary fixing members. In this case, the temporary fixing members can be pushed in from the side, making the temporary fixing work easier. In addition, in the second rotational position, the operation (removing bolts, etc.) for removing the construction panel structure (vertical furring strip members) from the placement surface can be performed from the side, so that the operation can be performed in a comfortable position. And, since the movable horizontal positioning part can be moved away from the side surface, it is possible to avoid the movable horizontal positioning part hitting the protrusions on the side surface of the exterior wall surface material when the construction panel structure is lifted.

In the above-mentioned production stand, the movable horizontal positioning unit is fixed in position by two shaft members, and one of the two shaft members may be removed and rotated by the other one.

The present invention uses temporary fixing members to prevent the vertical furring strip members, which are screwed to the back surface of the exterior wall panel only at the upper side, from swinging, which has the effect of making it easier to handle the exterior wall panel when fitting it into a temporary opening in the exterior wall.

1 is a rear view illustrating a temporary opening-forming exterior wall panel into which a panel structure of an embodiment is fitted during construction. FIG. 1A is an explanatory diagram showing the cross sections of the upper and lower parts of an exterior wall surface material, and FIG. 1B is an explanatory diagram showing the fitting locations of the exterior wall surface materials arranged vertically in FIG. FIG. 2 is a front view showing an example of a ground assembly frame for assembling the temporary opening forming exterior wall panel of FIG. 1 on the ground. FIG. 2 is an explanatory diagram illustrating the temporary opening forming exterior wall panel of FIG. 1 attached to the framework of a building. FIG. 2 is an explanatory diagram illustrating a state in which the temporary opening forming exterior wall panel of FIG. 1 is lifted by a balance in order to attach it to the framework of a building. 1A to 1C are explanatory diagrams showing a plan view, a side view, and a rear view of a panel structure during construction according to an embodiment. 1A to 1C are explanatory diagrams showing a plan view, a front view, and a side view of a temporary fixing member according to an embodiment. FIG. 8 is a schematic perspective view of the temporary fixing member of FIG. 7 . 13A and 13B are explanatory diagrams showing a plan view and a front view of a temporary fixing member according to another embodiment when it is inserted. 10A to 10C are explanatory diagrams showing a mounted state of the temporary fixing member of FIG. 9 in plan view, front view, and side view. 13A to 13C are explanatory diagrams showing a plan view, a front view, a side view, and a perspective view of a temporary fixing member according to another embodiment. 12A to 12C are explanatory diagrams showing a mounted state of the temporary fixing member of FIG. 11 in plan view, front view, and side view. 13A to 13C are explanatory diagrams showing a plan view, a front view, a side view, and a perspective view of a temporary fixing member according to another embodiment. 14A to 14C are explanatory diagrams showing a mounted state of the temporary fixing member of FIG. 13 in plan view, front view, and side view. 13A to 13C are explanatory diagrams showing a plan view, a front view, a side view (when the coil spring is expanded and when the coil spring is compressed), and a perspective view of a temporary fixing member according to another embodiment. 16A to 16C are explanatory diagrams showing a mounted state of the temporary fixing member of FIG. 15 in plan view, front view, and side view. 1A to 1C are explanatory diagrams showing a production stand according to an embodiment in plan view, front view, and side view. FIG. 18 is a perspective view of the production stand of FIG. 17; 18A to 18C are explanatory diagrams showing plan, front and side views of intermediate stages in fabricating a panel structure during construction using the production stand of FIG. 17. 18A to 18C are explanatory diagrams showing the stage at which an as-constructed panel structure is produced using the production stand of FIG. 17, in plan, front and side views. 18 is an explanatory diagram showing switching between a first rotation posture and a second rotation posture in the production stand of FIG. 17. FIG. 18 is an explanatory diagram showing the operation of the movable horizontal positioning unit in the production stand of FIG. 17.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.
As shown in Fig. 1, the temporary opening forming exterior wall panel 5 used in this embodiment has a structure in which a plurality of horizontally long exterior wall surface materials 51 are arranged vertically and connected to each other by first base materials (vertical furring strips) 52, which are base materials, and are attached to the building frame in an integrated form. In the example shown in Fig. 1, six first base materials 52 are provided, and each first base material 52 is made of an open cross-section steel material such as a lip channel steel or a closed cross-section steel material such as a square steel pipe.

The above-mentioned exterior wall surface material 51 is, for example, a metal sandwich panel in which non-combustible heat insulating material 51a is sandwiched between steel plates 51b and 51c, as shown in Figures 2(A) and 2(B). When two exterior wall surface materials 51 are arranged one above the other, two recesses 51d formed on the upper end surface of the exterior wall surface material 51 located in the lower tier and long in the width direction fit into two protrusions 51e formed on the lower end surface of the exterior wall surface material 51 located in the upper tier, so that the upper and lower exterior wall surface materials 51 are combined so that they do not shift out of position relative to each other in the out-of-plane direction.

For example, by using the base assembly frame 1 shown in FIG. 3, an exterior wall panel in which the above-mentioned multiple exterior wall surface materials 51 are arranged vertically and connected with a first base material 52 can be assembled at a location different from the exterior wall mounting location of the building frame to which the exterior wall panel is to be attached. The base assembly frame 1 is, for example, made up of multiple column members 11 and beam members 12 assembled vertically and horizontally, but its structure is not limited to that shown in FIG. 3.

After setting the first base material 52 on the base frame 1, the worker sets the exterior wall surface material 51 and screws the upper end side of the set exterior wall surface material 51 with a screw or the like, thereby fixing the exterior wall surface material 51 to the previously set first base material 52. By repeating this process, the temporary opening forming exterior wall panel 5 is produced.

In the temporary opening forming exterior wall panel 5 shown in FIG. 3, for example, the first base material 52 is divided and separated vertically at the location where the second-highest-level exterior wall surface material 51 should be present, and the top-most exterior wall surface material 51 is attached to the upper first base material 52, the second-highest-level exterior wall surface material 51 and the first base material 52 are not attached, and all exterior wall surface materials 51 from the third level onwards are attached to the lower first base material 52. That is, this exemplary temporary opening forming exterior wall panel 5 has a structure in which the exterior wall surface material 51 and the first base material 52 are not present in only the second level from the top. The temporary opening forming exterior wall panel 5 is not limited to such a structure. For example, there are other structures, such as the exterior wall surface material 51 and the first base material 52 being absent in only the third level from the top.

The temporary opening forming exterior wall panel 5 is provided with a second base material 53 having a predetermined vertical length, as shown in FIG. 1. The second base material 53 is connected to the first base material 52 located above and below, spanning the area where the first base material 52 is not present (the area that will become the temporary opening). The second base material 53 can be attached to the first base material 52 using the above-mentioned base assembly stand 1. The second base material 53 is attached detachably to the first base material 52, and can be removed once the temporary opening forming exterior wall panel 5 is attached to the building frame 7.

The first base material 52 is, for example, a lip channel steel having two opposing surfaces and a closed surface connecting these opposing surfaces, and the exterior wall surface material 51 is fixed with screws on one side of the opposing surfaces.

As shown in FIG. 4, the building frame 7 to which the temporary opening forming exterior wall panel 5 is attached includes, for example, a roof beam 71 on which the roof 7A is supported, a wind-resistant beam 72, and a floor beam 73. The roof beam 71 is fixed with a predetermined pitch, and the upper (roof side) wind-resistant beam 72 is provided by passing through the connecting material 71a. When attaching the temporary opening forming exterior wall panel 5 to the building frame 7, for example, the other side of the above-mentioned opposing surface portion of the first base material 52 is fixed to the wind-resistant beam 72, floor beam 73, etc. in the building frame 7 using metal fittings such as L-angles, fixing bolts, height adjustment bolts, etc.

For example, the second base material 53 is also a lip channel steel, and this second base material 53 is attached to the side of the first base material 52 with its closed surface facing the closed surface of the first base material 52. The closed surface has, for example, insertion holes formed at a predetermined pitch, and the second base material 53 is detachably attached to the first base material 52 by fastening members (bolts, nuts, etc.) sewn through the insertion holes. Note that even if the first base material 52 and the second base material 53 are square steel pipes with a closed cross-sectional shape, a similar bolt-based attachment structure can be used. Furthermore, the structure for making them detachable is not limited to a structure using bolts and nuts.

The temporary opening-forming exterior wall panel 5 can be lifted using a balance 8, for example, as shown in FIG. 5. The balance 8 has a fixing part 81 on one side and a counterweight 82 on the other side. The fixing part 81 is fixed to the first base material 52, the second base material 53, the exterior wall surface material 51 of the temporary opening-forming exterior wall panel 5, or a member temporarily fixed to these. The balance 8 is suspended by a suspension point 83 of a crane or the like.

When constructing the walls of a building, the temporary opening forming exterior wall panel 5 that has been lifted as described above is attached to the building's framework 7 by the first base material 52. For example, the upper first base material 52 of the temporary opening forming exterior wall panel 5 is fixed to the upper wind-resistant beam 72, and the lower first base material 52 is fixed to the lower wind-resistant beam 72.

As described above, after the first base material 52 of the exterior wall surface material 51 is fixed to the building frame 7, the second base material 53 can be removed from the first base material 52. Since the first base material 52 is fixed to the frame 7 as described above, the exterior wall surface material 51 will not come off the frame 7 even if the second base material 53 is removed from the first base material 52. By removing the second base material 53 from the first base material 52 in this manner, a temporary opening where the second base material 53 is not present in a location where the exterior wall surface material 51 is not present is formed, that is, an opening that is not blocked by the base material and can be used during construction. An example of use during construction is to take out scaffolding from the indoor side.

Next, an example of a panel structure 501 used for closing an opening in a temporary opening forming exterior wall panel 5 will be described with reference to FIG. 6. In this panel structure 501, only the upper side of one exterior wall surface material 51 is screwed to a vertical furring strip member 502 on the back side of the exterior wall surface material 51 with a screw 503, and the lower side of the vertical furring strip member 502 is temporarily fixed to the lower part of the exterior wall surface material 51 with a temporary fixing member 9. In this embodiment, six vertical furring strip members 502 are screwed to one exterior wall surface material 51 with one screw 503. Square steel pipes are used as the two vertical furring strip members 502 at the very ends, and lip channel steel is used as the four vertical furring strip members 502 on the central side. The exterior wall surface material 51 in the panel structure 501 for construction has the same structure as the other exterior wall surface materials 51. In addition, the exterior wall surface material 51 in the panel structure 501 during construction may have a structure that does not include the protrusion 51e, which is an engagement portion that engages with the lower side of the exterior wall surface material 51 located on the upper side.

As shown in Figures 7, 8, 9 and 10, the temporary fixing member 9 has an attachment portion 91 that is attached to the vertical furring strip member 502 and an engagement portion 92 that engages with the recess 51d at the bottom of the exterior wall surface material 51.

The engaging portion 92 has a convex portion 92a that engages with, for example, the outdoor side recess 51d of the two recesses 51d of the exterior wall surface material 51. The engaging portion 92 also has an extension portion 92b that extends from the convex portion 92a in the thickness direction of the exterior wall surface material 51.

The mounting portion 91 has a rising portion 91a that rises from the end of the extension portion 92b and can enter the vertical furring strip member 502, two protruding pieces 91b that protrude from the rising portion 91a in a direction away from the convex portion 92a, and a rotating portion 91c that is rotatably supported by pins 91d attached to each protruding piece 91b. The two protruding pieces 91b are spaced apart from each other in the longitudinal direction (vertical direction) of the vertical furring strip member 502. The axial direction of each pin 91d is parallel to the longitudinal direction of the vertical furring strip member 502. The rotating portion 91c is formed, for example, by bending a plate member into an approximately U-shape.

The above-mentioned rising portion 91a is a portion that becomes the first contact surface portion 911, and can contact the inner surface of the opposing surface portion (flange portion) of the lip channel steel that is the vertical furring strip member 502, which is in contact with the exterior wall surface material 51. In addition, a fourth contact surface portion 914 is formed on the protruding piece portion 91b. The fourth contact surface portion 914 is perpendicular to the first contact surface portion 911, and can contact the inner surface of the opposing surface portion (flange portion) of the lip channel steel that is the vertical furring strip member 502, which is in contact with the exterior wall surface material 51. In addition, the rotating portion 91c has a second contact surface portion 912 that can be positioned parallel to the first contact surface portion 911. This second contact surface portion 912 can contact the inner surface of the opposing surface portion (flange portion) of the lip channel steel that is the vertical furring strip member 502, which is not in contact with the exterior wall surface material 51. In addition, the rotating portion 91c has a third contact surface portion 913. This third contact surface portion 913 is the edge of the plate member, is perpendicular to the second contact surface portion 912, and can be in parallel contact with the inner surface of the closing surface portion (web portion) of the lip channel steel that is the vertical furring strip member 502.

When installing the temporary fixing member 9, as shown in FIG. 9, the worker inserts the installation part 91 into the vertical furring strip member 502 so that the second contact surface part 912 and the third contact surface part 913 of the four contact surface parts do not come into contact with the inner surface of the opposing surface part (flange part) of the vertical furring strip member 502 and the inner surface of the closing surface part (web part) of the lip channel steel which is the vertical furring strip member 502, and engages the engagement part 92 with the recess 51d at the bottom of the exterior wall surface material 51. Then, as shown in FIG. 10, the worker rotates the rotating part 91c to bring the second contact surface part 912 and the third contact surface part 913 into contact with the inner surface of the vertical furring strip member 502.

In this way, the mounting portion 91 has four contact surface portions 911, 912, 913, and 914 that contact four different inner surfaces of the vertical furring strip member 502, and two of the four contact surface portions 911, 912, 913, and 914, the contact surface portions 912 and 913, are formed on the rotating portion 91c, and the two contact surface portions 912 and 913 contact two different inner surfaces of the vertical furring strip member 502 due to the rotating movement of the rotating portion 91c.

In the above-mentioned construction panel structure 501, the temporary fixing member 9 can prevent the lower side of the vertical furring strip member 502, which is screwed only on the upper side to the back surface of the exterior wall surface material 51, from swinging. This can solve the problem caused by the swinging of the vertical furring strip member 502. The problem is that when the casters attached to the lower part of the vertical furring strip member 502 are positioned on the wind-resistant beam 72 and the construction panel structure 501 is moved and positioned by sliding it sideways, the vertical furring strip member 502 and the exterior wall surface material 51 do not move in conjunction with each other. After the construction panel structure 501 is moved and positioned by sliding it sideways, the temporary fixing member 9 is removed from the vertical furring strip member 502, and the vertical furring strip member 502 is connected to the first base material 52 of the temporary opening forming exterior wall panel 5 using the second base material 53.

The temporary fixing member 9 has an attachment portion 91 that is attached to the vertical furring strip member 502 and an engagement portion 92 that engages with the recess 51d at the bottom of the exterior wall surface material 51, which has the following advantages. That is, if a mountain-shaped member is used as a temporary fixing member to fix the lower side of the vertical furring strip member 502 to the exterior wall surface material 51, and its two sides are respectively fixed to the vertical furring strip member 502 and the exterior wall surface material 51 with temporary screws, holes will be created in the exterior wall surface material 51 when the temporary screws are later removed, but by using the temporary fixing member 9, this can be avoided.

As described above, if the mounting portion 91 is a temporary fixing member 9 having four contact surfaces 911, 912, 913, and 914, the mounting portion 91 can be mounted to the vertical furring strip member 502 by surface contact of the four contact surfaces 911, 912, 913, and 914 without necessarily using fastening members such as bolts. In this mounting, it is desirable for the four contact surfaces 911, 912, 913, and 914 to be in pressing contact with the inner surface of the vertical furring strip member 502, and in order to create such a pressing contact state, the mounting portion 91 may be formed from a thin spring steel plate.

In addition, an insertion hole 915 may be provided in the second contact surface portion 912, which is capable of contacting the inner surface of the opposing surface portion (flange portion) on the side of the lip channel steel that is the vertical furring strip member 502 that does not contact the exterior wall surface material 51, and an insertion hole (in Figs. 8 and 9, this insertion hole is depicted) may also be formed in the opposing surface portion (flange portion) at the location where the insertion hole is located upon contact, and a bolt may be passed through the insertion hole and tightened with a nut to prevent the attachment state from loosening due to the contact. In other words, the temporary fixing member 9 may have the attachment portion 91 attached to the vertical furring strip member 502 by a fastening member.

The temporary fixing member 9 can also be attached to the rectangular steel pipe that is the vertical furring strip member 502. The same applies to the other temporary fixing members described below.

Instead of the temporary fixing member 9, a temporary fixing member 9A shown in Figures 11 and 12 may be used. This temporary fixing member 9A has an attachment portion 91A that is attached to the vertical furring strip member 502 and an engagement portion 92 that engages with the recess 51d at the bottom of the exterior wall surface material 51. The attachment portion 91A has a rising portion 91a that rises from the end of the extension portion 92b and can enter the vertical furring strip member 502, a plate portion 91e that is perpendicular to the rising portion 91a and extends from the rising portion 91a in a direction away from the convex portion 92a, and a hanging portion 91f that hangs down from the end of the plate portion 91e parallel to the rising portion 91a.

The rising portion 91a faces the inner surface of the opposing surface portion (flange portion) of the lip channel steel, which is the vertical furring strip member 502, on the side that contacts the exterior wall surface material 51. The plate portion 91e has a length that reaches near the inner surface of the opposing surface portion (flange portion) of the lip channel steel, which is the vertical furring strip member 502, on the side that does not contact the exterior wall surface material 51, and the hanging portion 91f faces the opposing surface portion (flange portion).

The hanging portion 91f has an insertion hole 915. The opposing surface (flange portion) at the location where the insertion hole 915 is located also has an insertion hole, and the temporary fixing member 9A can be attached to the vertical furring strip member 502 by attaching a bolt and nut (fastening member) 91g using the insertion hole.

Alternatively, the temporary fixing member 9B shown in Fig. 13 and Fig. 14 may be used as the temporary fixing member. This temporary fixing member 9B has an attachment portion 91B that is attached to the vertical furring strip member 502 and an engagement portion 92 that engages with the recess 51d at the bottom of the exterior wall surface material 51. The extension portion 92b of the engagement portion 92 has a length that passes through the lower end of the vertical furring strip member 502 and reaches the outer surface side of the opposing surface portion (flange portion) on the side that does not contact the exterior wall surface material 51 of the lip channel steel that is the vertical furring strip member 502. The attachment portion 91B is composed of a rising portion that rises from the end of the extension portion 92b and faces the outer surface side. An insertion hole 915 is formed in this rising portion. An insertion hole is also formed in the opposing surface portion (flange portion) at the location where this insertion hole 915 is located, and the temporary fixing member 9B can be attached by attaching a bolt/nut (fastening member) 91g using these insertion holes.

Alternatively, the temporary fixing member 9C shown in Figures 15 and 16 may be used as the temporary fixing member. This temporary fixing member 9C has a structure similar to the temporary fixing member 9A described above, and while the temporary fixing member 9A is attached to the vertical furring strip member 502 by means of bolts and nuts (fastening members) 91g, the temporary fixing member 9C has a pin operating portion 900, and is attached to the vertical furring strip member 502 by inserting the pin portion 901 of the pin operating portion 900 into an insertion hole 915 formed in the hanging portion 91f and an insertion hole formed in the vertical furring strip member 502.

The pin operating unit 900 includes a coil spring 902, one end of which abuts against the rising portion 91a and the other end of which faces the hanging portion 91f. A manual operating unit 903 is attached to the other end of the coil spring 902, and the pin portion 901 is fixed to the manual operating unit 903. When the manual operating unit 903 is operated to contract the coil spring 902, the pin portion 901 can be retracted from the insertion hole 915 of the hanging portion 91f and the mounting portion 91A can be inserted into the vertical furring strip member 502. After inserting the mounting portion 91A into the vertical furring strip member 502 in this way, by releasing the manual operating unit 903, the coil spring 902 expands, the manual operating unit 903 moves, and the pin portion 901 can be passed through the insertion hole 915 of the hanging portion 91f and the insertion hole of the vertical furring strip member 502. The manual operation unit 903 is provided with a stopper surface that contacts the hanging portion 91f, and the movement of the manual operation unit 903 is stopped when the pin portion 901 is inserted through the insertion hole 915 of the hanging portion 91f and the insertion hole of the vertical furring strip member 502.

That is, in the above-mentioned temporary fixing member 9C, the mounting portion 91A has a pin portion 901 that fits into the insertion hole of the vertical furring strip member 502 and an elastic member (such as a coil spring 902) that causes the pin portion 901 to protrude, and the mounting portion 91A may be attached to the vertical furring strip member 502 by fitting the pin portion 901 into the insertion hole by protruding the pin portion 901. In this way, the mounting portion 91A can be easily attached to the vertical furring strip member 502 by operating the elastic member, without using bolts and nuts (fastening members) 91g.

Next, we will use Figures 17, 18, 19, and 20 to explain the production stand 2 that produces the panel structure 501 during construction. This production stand 2 includes a base portion 21, a mounting surface portion 22, a rotation support portion 23, a vertical positioning portion 24, and a movable horizontal positioning portion 25.

The base 21 has two horizontal bases 21a made of H-shaped steel or the like that are spaced apart from each other. Two casters 21b are attached to the underside of each horizontal base 21a.

The support surface 22 has two girders 22a that are long in a direction perpendicular to the longitudinal direction of the two horizontal bases 21a. These two girders 22a are made of H-shaped steel or the like that are arranged at a distance from each other in a direction perpendicular to the separation direction of the horizontal bases 21a. The two girders 22a are also welded to the ends of two small beams 22b made of square steel pipes or the like that are arranged between the girders 22a. Each girder 22a has, for example, one surface of an angle iron 22c having two orthogonal surfaces fixed thereto by a bolt or the like, and the other surface forms a support surface for the vertical furring strip member 502. That is, the other surface of the angle iron 22c is perpendicular to the longitudinal direction of the girder 22a, and the vertical furring strip member 502 can be fixed to the other surface by a bolt or the like with the vertical furring strip member 502 in contact with the other surface. This type of mounting surface 22 allows the vertical furring strip members 502 to be positioned and fixed in the design position, and then the exterior wall surface material 51 can be placed on top of the vertical furring strip members 502, and the exterior wall surface material 51 can be fixed to the vertical furring strip members 502 by driving screws 503 into the exterior wall surface material 51 on the upper side of the vertical furring strip members 502.

The pivot support section 23 comprises a first support section 231 and a second support section 232 which are respectively erected on the two horizontal bases 21a. A support shaft 231a is provided at the top of the first support section 231 in parallel with the longitudinal direction of the main beam 22a. The support shaft 231a is inserted into the side section at approximately the center of each of the small beams 22b of the mounting surface section 22, and the mounting surface section 22 rotates around the support shaft 231a.

The second support column 232 is provided at a position where its upper end contacts the side surface of one of the main beams 22a, and by fixing one of the main beams 22a at this upper end with a bolt or the like, the placement surface 22 can be positioned horizontally. On the other hand, by removing this bolt or the like, the placement surface 22 can be allowed to rotate.

In other words, the pivot support portion 23 supports the placement surface portion 22 so that it can pivot about a direction perpendicular to the longitudinal direction of the vertical furring strip member 502, and can take a first pivot position in which the placement surface portion 22 is positioned horizontally, and a second pivot position in which the placement surface portion 22 is upright.

The vertical positioning portion 24 is, for example, an angle steel having two orthogonal surfaces, one of which is fixed to one of the main beams 22a by a bolt or the like, and the upper part of this one surface abuts against the upper edge of the exterior wall surface material 51, thereby determining the vertical position of this exterior wall surface material 51.

The movable horizontal positioning part 25 is provided on one end side of the mounting surface part 22. The movable horizontal positioning part 25 has a contact part 251 made of an angle iron having two orthogonal surfaces, and a support part 252 that rotatably supports the contact part 251. The contact part 251 positions the edge of the one surface that is positioned horizontally when it is positioned by contacting it with the side part of the exterior wall surface material 51. A protrusion part 512 that becomes a vertical joint part of the exterior wall is formed on the side part of the exterior wall surface material 51 (see FIG. 22), and the edge of the one surface contacts the side part at a position on the outdoor side of the protrusion part 512. The height of the one surface is made higher than the height of the protrusion part 512. The other surface of the contact part 251 is fixed to the upper side of the support part 252.

The support section 252 is a vertically arranged angle iron having two orthogonal surfaces, and the contact section 251 is fixed to the upper side of one of the surfaces with bolts or the like. The lower side of the other surface of the support section 252 is fixed to each of the main beams 22a with two shaft members 253 (including bolts or the like: see FIG. 22). In other words, the movable horizontal positioning section 25 is fixed in position by the two shaft members 253, and the contact section 251 is released from the side of the exterior wall surface material 51 by removing one of the two shaft members 253 and rotating it with the other one. Each of the main beams 22a has an insertion hole 222 through which the shaft member 253 can be inserted (see FIG. 22).

In the case of the above-mentioned production stand 2, in the above-mentioned first rotational position, as shown in FIG. 19, the exterior wall surface material 51 can be placed on the vertical furring strip member 502 that is placed and fixed on the mounting surface portion 22, and as shown in FIG. 20, the exterior wall surface material 51 can be fixed to the vertical furring strip member 502 by driving a screw 503 into the upper side of the material.

In this first rotational position, as shown in FIG. 21, the lower side of the vertical furring strip member 502 may be temporarily fixed to the lower side of the exterior wall panel 51 using temporary fixing members 9 (9A, 9B, 9C). In this case, the temporary fixing members 9 are pushed in from the side, making the temporary fixing operation easier.

In addition, in the second rotational position described above, the operation for removing the panel structure 501 (vertical furring strip member 502) from the mounting surface portion 22 during construction (removing bolts, etc.) can be performed from the side, not directly below, so that the operation can be performed in a comfortable position.

In the second rotational position, as shown in FIG. 22, the movable horizontal positioning part 25 is rotated away from the side surface of the exterior wall surface material 51, so that the movable horizontal positioning part 25 does not come into contact with the protrusions on the side surface of the exterior wall surface material 51, and the panel structure 501 can be removed from the production frame 2 during construction. Note that the two shaft members 253 are spaced apart in the thickness direction of the exterior wall surface material 51, and one shaft member 253 farthest from the exterior wall surface material 51 is removed and rotated with the other one, but this is not limited to this. In addition, by using at least one tapered pin as the shaft member 253, it becomes easier to insert the shaft member 253 into the insertion hole 222 formed in the girder 22a, and the positioning accuracy of the movable horizontal positioning part 25 is also improved.

Although an embodiment of the present invention has been described above with reference to the drawings, the present invention is not limited to the illustrated embodiment. Various modifications and variations can be made to the illustrated embodiment within the same scope as the present invention or within an equivalent scope.

1: Ground assembly stand 2: Production stand 5: Temporary opening forming exterior wall panel 7: Structure 7A: Roof 8: Balance 9: Temporary fixing member 9A: Temporary fixing member 9B: Temporary fixing member 9C: Temporary fixing member 11: Column-shaped member 12: Beam-shaped member 21: Base portion 21a: Horizontal base portion 21b: Caster 22: Placement surface portion 22a: Main beam 22b: Small beam 22c: Angle iron 23: Rotation support portion 24: Vertical positioning portion 25: Movable horizontal positioning portion 51: Exterior wall surface material 51a: Non-combustible heat insulating material 51b: Steel plate 51c: Steel plate 51d: Concave portion 51e: Convex portion 52: First base material 53: Second base material 71: Roof beam 71a: Joint material 72: Wind-resistant beam 73 : Floor beam 81 : Fixed portion 82 : Counterweight 83 : Suspension base 91 : Mounting portion 91A : Mounting portion 91B : Mounting portion 91a : Rising portion 91b : Protruding piece portion 91c : Rotating portion 91d : Pin 91e : Plate portion 91f : Hanging portion 92 : Engagement portion 92a : Convex portion 92b : Extension portion 222 : Insertion hole 231 : First support portion 231a : Support shaft 232 : Second support portion 251 : Contact portion 252 : Support portion 253 : Shaft member 501 : Panel structure during construction 502 : Vertical furring strip member 503 : Screw 512 : Protrusion portion 900 : Pin operation portion 901 : Pin portion 902 : Coil spring 903 : Manual operation portion 911 : First contact surface portion 912 :Second contact surface part 913 :Third contact surface part 914 :Fourth contact surface part 915 :Through hole

Claims (8)

A panel structure during construction characterized in that only the upper side of the exterior wall surface material is screwed to the vertical furring strip members on the back side of the exterior wall surface material, and the lower side of the vertical furring strip members is temporarily fixed to the lower side of the exterior wall surface material by temporary fixing members. The panel structure during construction according to claim 1, wherein the temporary fixing member has an attachment portion that is attached to the vertical furring strip member and an engagement portion that engages with the lower portion of the exterior wall surface material. The panel structure as constructed according to claim 2, wherein the mounting portion is mounted to the vertical furring strip member by a fastening member. In the panel structure during construction described in claim 2 or 3, the mounting portion has four contact surface portions that contact four different inner surfaces of the vertical furring strip member, two of the four contact surface portions are formed on a rotating portion, and the two contact surface portions contact two different inner surfaces of the vertical furring strip member by the rotating movement of the rotating portion. A panel structure during construction. In the panel structure during construction described in claim 2, the mounting portion has a pin portion that fits into an insertion hole of the vertical furring strip member and an elastic member that operates the pin portion, and the mounting portion is attached to the vertical furring strip member by fitting into the insertion hole due to the operation of the pin portion. A panel structure during construction. A temporary fixing member to be attached to the panel structure during construction according to any one of claims 1 to 5, characterized in that the temporary fixing member has an attachment portion that is attached to the vertical furring strip member of the panel structure during construction, and an engagement portion that engages with the lower portion of the exterior wall surface material of the panel structure during construction. A manufacturing stand for manufacturing the as-constructed panel structure according to any one of claims 1 to 5,
A placement surface portion for placing and fixing the vertical furring strip members and placing the exterior wall surface material on the vertical furring strip members;
A rotation support part that supports the placement surface part so that the placement surface part can rotate about a direction perpendicular to the longitudinal direction of the vertical furring strip member and switches between a first rotation position in which the placement surface part is horizontal and a second rotation position in which the placement surface part is upright;
A vertical positioning portion that abuts against an upper edge portion of the exterior wall surface material to determine a vertical position of the exterior wall surface material;
a movable horizontal positioning portion that determines a horizontal position of the exterior wall surface material by contacting a side surface portion of the exterior wall surface material in a fixed state, and that moves away from the side surface portion;
A production stand comprising: The production stand according to claim 7, wherein the movable horizontal positioning part is fixed in position by two shaft members, one of which can be removed and rotated by the other shaft member.

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