JP2018127844A - Panel unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To propose a panel unit capable of reducing the joint width of a joint formed between adjacent panels with improved fire resistance.SOLUTION: A panel unit 1 includes panels 2, 3 arranged in one direction. The panels 2, 3 are sandwich panels having front plates 20, 30, rear plates 21, 31 and core members 22, 32. The front plates 20, 30 have front piece portions 201, 301. The rear plates 21, 31 have rear piece portions 211, 311. The front piece portion 201 includes a front extension portion 201a extended to the rear side. The rear piece portion 211 includes a rear extension portion 211a extended to the front side. A connecting plate 4 is fixed to both the front extension portion 201a and the rear extension portion 211a. The front piece portions 201, 301 are in a position where they abut each other, and the connecting plate 4 is in a position not overlapping with either the front piece portion 301 or the rear piece portion 311.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a panel unit.

  Patent Document 1 describes that a plurality of heat insulation panels filled with a core material between two metal shells are arranged vertically and horizontally to form one wall.

  The two metal skins are connected to each other by a screw or the like to each of a plurality of connecting members provided at both end portions of the heat insulating panel.

  Each heat insulation panel has a protrusion on each of the upper, lower, left and right end faces. The heat insulating panels arranged in the vertical and horizontal directions are connected in a state where packing is filled between the opposing ridge portions.

JP2012-92496A

  By the way, in order to form a wall by arranging a plurality of panels, there is a demand for minimizing the joint width between joints formed between adjacent panels.

  However, in the heat insulation panel described in Patent Document 1, since the end face has a ridge portion, the joint width cannot be reduced, and even if the ridge portion is omitted, a screw for fixing the connecting member is used. The head width gets in the way and the joint width cannot be reduced. Moreover, in the heat insulation panel described in Patent Document 1, when the connecting member and the screw are omitted, there is a problem in that the two metal skins cannot be connected and the fire resistance is lowered.

  In view of the above circumstances, an object of the present invention is to propose a panel unit capable of reducing the joint width of joints formed between adjacent panels while improving fire resistance.

  A panel unit according to an aspect of the present invention has the following configuration.

  In other words, the panel unit according to one aspect includes a first panel and a second panel arranged in one direction.

  Each of the first panel and the second panel includes a metal front plate located on the front side, a metal rear plate located on the rear side, and a core member located between the front plate and the rear plate. It has a sandwich panel.

  The front plate includes a main body attached to the front surface of the core member, and a front piece extending from the edge of the main body to the rear side. The rear plate includes a main body portion attached to the rear surface of the core member, and a rear piece portion extended from the edge of the main body portion to the front side.

  The front piece portion of the first panel includes a front extension portion extended to a position on the rear side of the front piece portion of the second panel. The rear piece portion of the first panel includes a rear extension portion extended to a position in front of the rear piece portion of the second panel. The first panel further includes a connecting plate fixed to both the front extension and the rear extension.

  The front pieces of the first panel and the second panel are in a position where they abut each other, and the connecting plate does not overlap any of the front piece and the rear piece of the second panel. In position.

  In the present invention, it is possible to propose a panel unit capable of reducing the joint width of joints formed between adjacent panels while improving fire resistance.

FIG. 1 is a side view showing a panel unit according to Embodiment 1 of the present invention. FIG. 2A is a side sectional view showing the panel unit same as above, and FIG. 2B is an enlarged view of a portion A of FIG. 2A. FIG. 3A is a bottom view showing a first panel of the panel unit same as the above, and FIG. 3B is a plan view showing a second panel of the panel unit same as the above. 4A is a side sectional view showing the panel unit according to the second embodiment of the present invention, and FIG. 4B is a side sectional view showing another part in the left-right direction of the portion corresponding to the portion B in FIG. 4A. 4C is a side sectional view showing still another part in the left-right direction of the portion corresponding to the portion B in FIG. 4A. FIG. 5A is a bottom view showing a first panel of the panel unit same as the above, and FIG. 5B is a plan view showing a second panel of the panel unit same as the above.

(Embodiment 1)
FIG. 1 shows a panel unit 1 according to the first embodiment. The panel unit 1 includes a first panel 2 and a second panel 3 arranged in one direction (in the vertical direction in the present embodiment) so as to form one panel as a whole. Hereinafter, each configuration will be described with the thickness direction of the panel unit 1 as the front-rear direction and the direction orthogonal to the front-rear direction in plan view as the left-right direction. In each figure, the direction indicated by the arrow X is the front, the direction indicated by the arrow Y is rightward, and the direction indicated by the arrow Z is upward.

  In the panel unit 1 of the present embodiment, the first panel 2 is located above the second panel 3.

  First, the basic configuration of the first panel 2 will be described.

  The first panel 2 is a sandwich panel having a metal front plate 20 located on the front side, a metal rear plate 21 located on the rear side, and a core member 22 located between the front plate 20 and the rear plate 21. It is. The thickness of the first panel 2 is, for example, 60 mm.

  The front plate 20 has a rectangular box shape opened rearward. Specifically, as shown in FIGS. 2A and 3A, the front plate 20 includes a rectangular plate-shaped main body 200 attached to the front surface of the core member 22, and a bottom extended from the lower edge of the main body 200 to the rear side. It includes a front piece 201 and an upper front piece 202 that extends from the upper edge of the main body 200 to the rear side. Furthermore, the front plate 20 includes a right front piece 203 that extends from the right edge of the main body 200 to the rear side, and a left front piece 204 that extends from the left edge of the main body 200 to the rear side.

  The lower front piece portion 201 is provided so as to extend over the entire length in the left-right direction of the lower edge of the main body portion 200, and the upper front piece portion 202 is provided so as to extend over the entire length in the left-right direction of the upper edge of the main body portion 200. Yes. The right front piece 203 is provided so as to extend over the entire length of the right edge of the main body 200 (see FIG. 1), and the left front piece 204 extends over the entire length of the left edge of the main body 200 in the vertical direction. Is provided. The lengths of the front pieces 201, 202, 203, 204 in the front-rear direction are substantially the same.

  The rear plate 21 has a rectangular box shape opened forward. Specifically, the rear plate 21 includes a main body part 210 attached to the rear surface of the core member 22, a lower rear piece part 211 extended from the lower edge of the main body part 210 to the front side, and an upper edge of the main body part 210 from the upper side to the front side. An extended upper rear piece 212 is included. Further, the rear plate 21 includes a right rear piece 213 extending from the right edge of the main body 210 to the front side, and a left rear piece 214 extending from the left edge of the main body 210 to the front side.

  The lower rear piece 211 is provided so as to cover the entire length of the lower edge of the main body 210 in the left-right direction, and the upper rear piece 212 is provided so as to extend over the entire length of the upper edge of the main body 210 in the left-right direction. Yes. The right rear piece 213 is provided so as to extend over the entire length of the right edge of the main body 210 in the vertical direction (see FIG. 1), and the left rear piece 214 extends over the entire length of the left edge of the main body 210 in the vertical direction. It is provided as follows. The lengths of the rear piece portions 211, 212, 213, and 214 in the front-rear direction are the same.

  Each of the front plate 20 and the rear plate 21 is provided by processing a metal plate by roll forming or the like. As the metal plate, galvanized steel plate, Galvalume steel plate (registered trademark), SGL (registered trademark) steel plate, painted steel plate, or the like is used. The front plate 20 and the rear plate 21 have the same thickness, for example, 0.3 to 1.5 mm.

  The core material 22 has a rectangular plate shape as a whole. The vertical length of the core member 22 is the same as or slightly shorter than the vertical length of the main body 210 of the rear plate 21. In the present embodiment, the core material 22 includes a refractory core material 220 that constitutes each of the upper end portion and the lower end portion of the core material 22, and a core material main body portion 221 that is interposed between the upper and lower refractory core materials 220.

  The core body main body 221 is formed by arranging a plurality of block bodies formed by solidifying a fibrous inorganic material such as rock wool or glass wool with a binder or the like in a single plate shape. The refractory core material 220 is a member having higher fire resistance than the core material main body part 221, and is, for example, a gypsum board or a calcium silicate board.

  The first panel 2 is formed by integrating the front plate 20, the rear plate 21, and the core material 22 with an adhesive. As shown in FIG. 2B, in the first panel 2, the front plate 20 is arranged on the front surface of the core member 22 so that the lower front piece 201 of the front plate 20 is positioned below the lower rear piece 211 of the rear plate 21. The rear surface of the main body portion 200 is bonded, and the front surface of the main body portion 210 of the rear plate 21 is bonded to the rear surface of the core member 22. In the first panel 2, the front piece portions 201, 202, 203, 204 of the front plate 20 and the rear piece portions 211, 212, 213, 214 of the rear plate 21 are located apart in the front-rear direction. In the first panel 2, the front plate 20 and the rear plate 21 may be bonded to the core material 22 so that the lower front piece 201 and the lower rear piece 211 have the same vertical position.

  Further, in the first panel 2 of the present embodiment, the upper front piece 202 of the front plate 20 is located above the upper rear piece 212 of the rear plate 21. The upper front piece 202 and the upper rear piece 212 may have the same vertical position.

  Next, the basic configuration of the second panel 3 will be described.

  As shown in FIG. 1, the second panel 3 is positioned between the front plate 30 made of metal, the rear plate 31 made of metal located on the rear side, and the front plate 30 and the rear plate 31. This is a sandwich panel having a core material 32. The thickness of the second panel 3 is, for example, 60 mm.

  The front plate 30 has a rectangular box shape opened rearward. Specifically, as shown in FIGS. 2A and 3B, the front plate 30 includes a rectangular plate-shaped main body 300 attached to the front surface of the core member 32, and an upper portion extended from the upper edge of the main body 300 to the rear side. It includes a front piece 301 and a lower front piece 302 extending from the lower edge of the main body 300 to the rear side. Further, the front plate 30 includes a right front piece portion 303 extended from the right edge of the main body portion 300 to the rear side, and a left front piece portion 304 extended from the left edge of the main body portion 300 to the rear side.

  The upper front piece 301 is provided so as to extend over the entire length of the upper edge of the main body 300 in the left-right direction, and the lower front piece 302 is provided so as to extend over the entire length of the lower edge of the main body 300 in the left-right direction. Yes. The right front piece 303 is provided so as to extend over the entire length of the right edge of the main body 300 in the vertical direction (see FIG. 1), and the left front piece 304 is formed so as to cover the entire length of the left edge of the main body 300 in the vertical direction. Is provided. The lengths of the front piece portions 301, 302, 303, and 304 in the front-rear direction are substantially the same.

  The rear plate 31 has a rectangular box shape that opens forward. Specifically, the rear plate 31 includes a main body part 310 attached to the rear surface of the core member 32, an upper rear piece part 311 extended from the upper edge of the main body part 310 to the front side, and a lower edge of the main body part 310 to the front side. It includes an extended lower back piece 312. Further, the rear plate 31 includes a right rear piece 313 that extends from the right edge of the main body 310 to the front side, and a left rear piece 314 that extends from the left edge of the main body 310 to the front side.

  The upper rear piece 311 is provided so as to extend over the entire length of the upper edge of the main body 310 in the left-right direction, and the lower rear piece 312 is provided so as to extend over the entire length of the lower edge of the main body 310 in the left-right direction. Yes. The right rear piece 313 is provided so as to extend over the entire length of the right edge of the main body 310 (see FIG. 1), and the left rear piece 314 extends over the entire length of the left edge of the main body 310 in the vertical direction. It is provided as follows. The lengths of the rear pieces 311, 312, 313, and 314 in the front-rear direction are the same.

  Each of the front plate 30 and the rear plate 31 is provided by processing a metal plate by roll forming or the like. As the metal plate, galvanized steel plate, Galvalume steel plate (registered trademark), SGL (registered trademark) steel plate, painted steel plate, or the like is used. The front plate 30 and the rear plate 31 have the same thickness, for example, 0.3 to 1.5 mm.

  The core material 32 has a rectangular plate shape as a whole. The vertical length of the core member 32 is the same as or slightly shorter than the vertical length of the main body 310 of the rear plate 31. The core material 32 is formed by arranging a plurality of block bodies formed by solidifying fibrous inorganic materials such as rock wool and glass wool with a binder or the like in a single plate shape.

  The second panel 3 is formed by integrating the front plate 30, the rear plate 31, and the core member 32 with an adhesive. In the second panel 3, the rear surface of the main body 300 of the front plate 30 is placed on the front surface of the core member 32 so that the upper front piece 301 of the front plate 30 is positioned above the upper rear piece 311 of the rear plate 31. The front surface of the main body 310 of the rear plate 31 is bonded to the rear surface of the core member 32. In the second panel 3, the front piece portions 301, 302, 303, and 304 of the front plate 30 and the rear piece portions 311, 312, 313, and 314 of the rear plate 31 are located apart in the front-rear direction.

  In the second panel 3 of the present embodiment, the lower front piece 302 of the front plate 30 is located below the lower rear piece 312 of the rear plate 31. The lower front piece 302 and the lower rear piece 312 may have the same vertical position.

  Subsequently, the first panel 2 will be described in more detail.

  As shown in FIG. 2B, the lower front piece 201 of the first panel 2 includes a front extension 201 a that extends to a position behind the upper front piece 301 of the second panel 3. The lower rear piece 211 of the first panel 2 includes a rear extension 211 a that is extended to a position in front of the upper rear piece 311 of the second panel 3.

  The first panel 2 includes a connection plate 4 fixed to both the front extension 201a and the rear extension 211a, and a pair of fixing screws 5 for fixing the connection plate 4 to each of the front extension 201a and the rear extension 211a. Also have. Each of the front extension portion 201a and the rear extension portion 211a is provided with a through hole at a place where the fixing screw 5 is driven.

  As shown in FIG. 3A, the connecting plate 4 is a flat plate having a circular shape in plan view in the present embodiment. The front-rear length L1 of the connecting plate 4 is shorter than the distance L2 between the upper front piece 301 and the upper rear piece 311 of the second panel 3 (see FIG. 3B). The thickness of the connecting plate 4 is, for example, 0.8 mm. The connecting plate 4 is made of metal, and is formed of the same material as the front plate 20 and the rear plate 21, for example. Each of the pair of fixing screws 5 has a head portion 50 and a shaft portion 51. The connecting plate 4 is provided with a through hole where the fixing screw 5 is driven. The diameter of the through hole of the connecting plate 4 is larger than the diameter of the through hole of the extension parts 201 a and 211 a and is slightly larger than the diameter of the shaft part 51 of the fixing screw 5.

  The first panel 2 has two connecting plates 4. The two connecting plates 4 are located apart in the left-right direction. The interval between the two connecting plates 4 can be set as appropriate.

  The attachment of the connecting plate 4 by the fixing screw 5 is performed on the front plate 20, the rear plate 21 and the core member 22 which are integrated and placed flat. The connecting plate 4 has an extension portion by an upper through hole and a fixing screw 5 screwed into the through hole of the front extension portion 201a, and a fixing screw 5 screwed into the lower through hole and the through hole of the rear extension portion 211a. It is attached to 201a and 211a. In this embodiment, since the connecting plate 4 is not rectangular but circular, the connecting plate 4 is attached to the second panel 3 in the upper front piece 301 or the upper rear piece even if the connecting plate 4 is attached in a slightly inclined state. It is difficult to protrude to a position overlapping 311.

  As shown in FIGS. 1 and 3A, the first panel 2 further includes a plurality of connecting members 40 fixed to both the right front piece 203 and the right rear piece 213, a left front piece 204, and a left rear piece 214. The plurality of connecting members 41 are fixed to both of them. The first panel 2 further includes a plurality of connecting members 42 fixed to both the upper front piece 202 and the upper rear piece 212. The first panel 2 further has a pair of fixing screws 6 for fixing the connecting members 40, 41, 42.

  Each of the connecting members 40, 41, and 42 has the same size, shape, and material as the connecting plate 4 in this embodiment.

  Then, the panel unit 1 of this embodiment is demonstrated.

  The panel unit 1 is formed by a second panel 3 and a first panel 2 placed thereon.

  In the panel unit 1, as shown to FIG. 2B, the lower front piece part 201 of the 1st panel 2 and the upper front piece part 301 of the 2nd panel 3 exist in the position mutually faced up and down. The lower surface of the lower front piece portion 201 of the first panel 2 is in contact with the upper surface of the upper front piece portion 301 of the second panel 3. In the panel unit 1, a gap is formed between the lower rear piece 211 of the first panel 2 and the upper rear piece 311 of the second panel 3. Further, in the panel unit 1, each of the plurality of connecting plates 4 is in a position where it does not overlap any of the upper front piece 301 and the upper rear piece 311 of the second panel 3.

  Further, in the panel unit 1, the head 50 of the fixing screw 5 is accommodated between the connecting plate 4 and the core member 32 of the second panel 3.

  In the panel unit 1 of the present embodiment described above, the lower front piece 201 and the lower rear piece 211 are connected by the connecting plate 4 at the portion where the first panel 2 and the second panel 3 face each other. doing.

  Thereby, in the panel unit 1 of this embodiment, the front plate 20 or the rear plate 21 of the first panel 2 loses the adhesive force with respect to the core material 22 due to heat at the time of fire and peels off from the core material 22. It can suppress by the connection board 4, and can improve fire resistance.

  Moreover, in the panel unit 1 of this embodiment, the connecting plate 4 and the head 50 of the fixing screw 5 do not overlap the upper front piece 301 of the second panel 3, so the lower front piece 201 of the first panel 2. It is also possible to prevent the joint width of the joint between the upper front piece 301 and the second panel 3 from expanding.

  The panel unit 1 of Embodiment 1 demonstrated above is utilized suitably as a panel which has fire resistance. The panel unit 1 according to the first embodiment is used as, for example, a fireproof panel disposed on the indoor side of a window glass included in a curtain wall or an interior panel.

(Example of change)
The panel unit 1 according to the first embodiment described above can employ the following modifications.

  The arrangement of the first panel 2 and the second panel 3 may be upside down.

  The panel unit 1 may be composed of three or more panels arranged in one direction (vertical direction) so as to form a single panel as a whole. 3 may be used as long as the structure is abutted.

  The first panel 2 may have the same structure as that of the second panel 3 except for the end that is abutted against the second panel 3. The remaining part excluding the end part that is abutted against the panel 2 may have the same structure as the first panel 2.

  For example, as for the 1st panel 2, the core material 22 is comprised only by the core material main-body part 221, and the fireproof core material 220 does not need to be included. Moreover, as for the 2nd panel 3, the upper end part and lower end part of the core material 32 may be comprised with a fireproof core material.

  For example, in the first panel 2, the upper front piece 202, the right front piece 203, and the left front piece 204 may be shorter in the front-rear direction than the lower front piece 201, and the upper rear piece 212, right The rear piece 213 and the left rear piece 214 may be shorter in the front-rear direction than the lower rear piece 211. The first panel 2 may not have the connecting members 40, 41, 42.

  For example, in the second panel 3, the lower front piece 302, the right front piece 303, and the left front piece 304 may be longer in the front-rear direction than the upper front piece 301, and the lower rear piece 312, right The rear piece 313 and the left rear piece 314 may be longer in the front-rear direction than the upper rear piece 311. The second panel 3 may further include a connecting member that is fixed to both the front piece portions 302, 303, and 304 and the rear piece portions 312, 313, and 314.

  The panel unit 1 may further include a backing plate that is fixed to both the rear plate 21 of the first panel 2 and the rear plate 31 of the second panel 3. They may be connected to each other. Further, a plate-shaped sealing material may be sandwiched between the contact plate and the panels 2 and 3 so as to extend over the panels 2 and 3, and in this case, a gap between the rear pieces 211 and 311 of the panels 2 and 3 is effective. Can be blocked.

  Further, the core material body 221 and the core material 32 of the core material 22 may be plate-like members formed of a resin foam material such as urethane foam or phenol foam.

  Further, the panel unit 1 may have the panels 2 and 3 arranged side by side in the left-right direction. In this case, the end portions of the panels 2 and 3 on the side to be faced with each other may have the same structure as the lower end portion of the first panel 2 and the upper end portion of the second panel 3 in the first embodiment. In this case, it is preferable that the panel unit 1 includes a holding structure such as a contact plate that holds the panels 2 and 3 in contact with each other.

  The panel unit 1 may be configured by a total of four or more panels arranged in a plurality in the vertical direction and the horizontal direction. In this case, the two panels arranged in the up-down direction and the two panels arranged in the left-right direction have the same structure as the lower end portion of the first panel 2 and the upper end portion of the second panel 3 of Embodiment 1 described above, respectively. That's fine.

  The panel unit 1 is not limited to a standing posture, and may be used in a lying posture, for example, as a panel for a floor or a ceiling.

(Embodiment 2)
Next, the panel unit 1 according to the second embodiment of the present invention shown in FIGS. 4A to 4C and FIGS. 5A and 5B will be described. Hereinafter, the same components as those of the panel unit 1 of the first embodiment are denoted by the same reference numerals in the drawings, and detailed description thereof will be omitted, and configurations different from those of the panel unit 1 of the first embodiment will be described in detail. .

  In the panel unit 1 of Embodiment 2, as shown in FIG. 4C and FIG. 5B, the upper front piece 301 of the second panel 3 is extended to a position behind the lower front piece 201 of the first panel 2. A second front extension 301a. The upper rear piece 311 of the second panel 3 includes a second rear extension 311 a that is extended to a position in front of the lower rear piece 211 of the first panel 2.

  The second panel 3 includes a second connecting plate 7 fixed to both the second front extension 301a and the second rear extension 311a, and the second connecting plate 7 as a second front extension 301a and a second rear extension. It further has a pair of 2nd fixing screw 8 fixed to each of 311a. Each of the second front extension portion 301a and the second rear extension portion 311a is provided with a through hole where the second fixing screw 8 is driven. The second panel 3 has one second connecting plate 7.

  In the present embodiment, the second connecting plate 7 is a flat plate having a circular shape in plan view. The front-rear length L3 of the second connecting plate 7 is shorter than the distance L4 between the lower front piece 201 and the lower rear piece 211 of the first panel 2. The thickness of the second connecting plate 7 is, for example, 0.8 mm. The second connecting plate 7 is made of metal, and is formed of the same material as the front plate 30 and the rear plate 31, for example. Each of the pair of second fixing screws 8 includes a head portion 80 and a shaft portion 81 (see FIG. 4C).

  The second panel 3 further includes a plurality of connecting members 70 fixed to both the right front piece 303 and the right rear piece 313, and a plurality of connecting members fixed to both the left front piece 304 and the left rear piece 314. 71. The second panel 3 further includes a plurality of connecting members 72 fixed to both the lower front piece 302 and the lower rear piece 312. The second panel 3 further includes a fixing screw 9 that fixes each of the connecting members 70, 71, 72.

  Each of the second connecting plate 7 and the connecting members 70, 71, 72 has the same size, shape and material as the connecting plate 4 in this embodiment.

  In the first panel 2, as shown in FIG. 5A, the front extension 201a is located in a partial region in the longitudinal direction (that is, the left-right direction) of the lower front piece 201, and the rear extension 211a is the lower rear piece. It is located in a partial region of the part 211 in the longitudinal direction (that is, the left-right direction). The region in which the front extension 201a is located and the region in which the rear extension 211a are located have the same position in the left-right direction and are separated in the front-rear direction.

  In the second panel 3, as shown in FIG. 5B, the second front extension 301a is located in a partial region in the longitudinal direction (that is, the left-right direction) of the upper front piece 301, and the second rear extension 311a is The upper rear piece 311 is located in a partial region in the longitudinal direction (that is, the left-right direction).

  The region in which the second front extension 301a is located and the region in which the second rear extension 311a is located have the same position in the left-right direction and are separated in the front-rear direction.

  The region where the front extension 201a is located and the region where the second front extension 301a is located are in positions that do not overlap each other, and the region where the rear extension 211a is located and the region where the second rear extension 311a is located are They are in positions that do not overlap each other.

  In the present embodiment, the region in which the front extension portion 201a and the rear extension portion 211a are located is the region on both the left and right ends of the surface facing the lower side of the first panel 2. The region where the second front extension 301a and the second rear extension 311a are located is the central region in the left-right direction of the surface facing the upper side of the second panel 3.

  The panel unit 1 of this embodiment is formed of a second panel 3 and a first panel 2 placed on the second panel 3.

  In the panel unit 1, as shown to FIG. 4A, the lower front piece part 201 of the 1st panel 2 and the upper front piece part 301 of the 2nd panel 3 exist in the position mutually faced up and down. In the panel unit 1, each of the plurality of connecting plates 4 is in a position where it does not overlap any of the upper front piece 301 and the upper rear piece 311 of the second panel 3 as shown in FIG. 4B. Further, in the panel unit 1, as shown in FIG. 4C, the second connecting plate 7 is in a position where it does not overlap any of the lower front piece 201 and the lower rear piece 211 of the first panel 2, and each connecting plate 4 (see FIGS. 5A and 5B).

  Further, in the panel unit 1, as shown in FIGS. 4B and 4C, the head 50 of the fixing screw 5 fits between the connecting plate 4 and the core member 32 of the second panel 3, and the head of the second fixing screw 8. 80 is accommodated between the second connecting plate 7 and the core 22 of the first panel 2.

  In the panel unit 1 of Embodiment 2 demonstrated above, the lower front piece part 201 and the lower rear piece part 211 are connected by the connection plate 4 in the part which the 1st panel 2 and the 2nd panel 3 face | match, and a 2nd connection The upper front piece 301 and the upper rear piece 311 are connected by the plate 7.

  Thereby, in the panel unit 1 of this embodiment, the front plate 20 or the rear plate 21 of the first panel 2 loses the adhesive force with respect to the core material 22 due to heat at the time of fire and peels off from the core material 22. It can suppress by the connection board 4, and can improve fire resistance. Further, in the panel unit 1 of the present embodiment, the front plate 30 or the rear plate 31 of the second panel 3 loses the adhesive force to the core member 32 due to heat at the time of fire, and is peeled off from the core member 32. It can suppress by the two connection board 7, and can improve fire resistance.

  Moreover, in the panel unit 1 of this embodiment, the connecting plate 4 and the head 50 of the fixing screw 5 do not overlap the upper front piece 301 of the second panel 3, so the lower front piece 201 of the first panel 2. It is also possible to prevent the joint width of the joint between the upper front piece 301 and the second panel 3 from expanding.

  In the panel unit 1 of the present embodiment, the head 80 of the second connecting plate 7 and the second fixing screw 8 does not overlap with the lower front piece 201 of the first panel 2. It is also possible to prevent the joint width of the joint between the portion 201 and the upper front piece 301 of the second panel 3 from expanding.

  The panel unit 1 of Embodiment 2 demonstrated above is utilized suitably as a panel which has fire resistance. The panel unit 1 of Embodiment 2 is used as, for example, a fireproof panel or an interior panel disposed on the indoor side of a window glass provided in a curtain wall.

(Example of change)
The panel unit 1 according to the second embodiment described above can employ the following modifications.

  The arrangement of the first panel 2 and the second panel 3 may be upside down.

  The panel unit 1 may be composed of three or more panels arranged in one direction (vertical direction) so as to form a single panel as a whole. 3 may be used as long as the structure is abutted.

  The number of connection plates 4 included in the first panel 2 and the number of second connection plates 7 included in the second panel 3 can be selected as appropriate. For example, the first panel 2 may have one connection plate 4 and may have a plurality of second connection plates 7 of the second panel 3.

  Each of the panels 2 and 3 may have the same structure as that of the second panel 3 of the first embodiment except for the end part to be abutted.

  For example, as for the panels 2 and 3, the upper end part and lower end part of the core materials 22 and 32 may be comprised with a refractory core material.

  For example, as for the 1st panel 2, the upper front piece part 202, the right front piece part 203, and the left front piece part 204 may be shorter in the front-back direction than the part including the front extension part 201a of the lower front piece part 201. In the first panel 2, the upper rear piece 212, the right rear piece 213, and the left rear piece 214 may be shorter in the front-rear direction than the part including the rear extension 211 a of the lower rear piece 211. . The first panel 2 may not have the connecting members 40, 41, 42.

  For example, in the second panel 3, the lower front piece 302, the right front piece 303, and the left front piece 304 may be shorter in the front-rear direction than the portion including the second front extension 301a of the upper front piece 301. . The second panel 3 has a lower rear piece 312, a right rear piece 313, and a left rear piece 314 that are longer in the front-rear direction than the portion including the second rear extension 311 a of the upper rear piece 311. Also good. The second panel 3 may not have the connecting members 70, 71, 72.

  The panel unit 1 may further include a backing plate that is fixed to both the rear plate 21 of the first panel 2 and the rear plate 31 of the second panel 3. They may be connected to each other. Further, a plate-shaped sealing material may be sandwiched between the backing plate and the panel 2 and between the backing plate and the panel 3, and in this case, a gap between the rear piece portions 211 and 311 of the panels 2 and 3 is effectively reduced. Can be closed.

  Further, the core material body 221 and the core material 32 of the core material 22 may be plate-like members formed of a resin foam material such as urethane foam or phenol foam.

  Further, the panel unit 1 may have the panels 2 and 3 arranged side by side in the left-right direction. In this case, the end portions of the panels 2 and 3 on the side to be faced with each other may have the same structure as the lower end portion of the first panel 2 and the upper end portion of the second panel 3 of the second embodiment. In this case, it is preferable that the panel unit 1 includes a holding structure such as a contact plate that holds the panels 2 and 3 in contact with each other.

  The panel unit 1 may be configured by a total of four or more panels arranged in a plurality in the vertical direction and the horizontal direction. In this case, the two panels arranged in the up-down direction and the two panels arranged in the left-right direction should have the same structure as the lower end portion of the first panel 2 and the upper end portion of the second panel 3 of Embodiment 2 described above. That's fine. In addition, the two panels arranged in the vertical direction and the two panels arranged in the horizontal direction are respectively combined with the same structure as the lower end portion of the first panel 2 and the upper end portion of the second panel 3 in the first and second embodiments. You may have.

  The panel unit 1 is not limited to a standing posture, and may be used in a lying posture, for example, as a panel for a floor or a ceiling.

(Function and effect)
The panel unit 1 of Embodiment 1 and 2 mentioned above is equipped with the following structure as a 1st characteristic.

  That is, the panel unit 1 of Embodiments 1 and 2 includes a first panel 2 and a second panel 3 arranged in one direction. Each of the first panel 2 and the second panel 3 includes a metal front plates 20 and 30 located on the front side, a metal rear plates 21 and 31 located on the rear side, and the front plates 20 and 30 and the rear plate. This is a sandwich panel having core members 22 and 32 located between 21 and 31.

  The front plates 20, 30 have main body portions 200, 300 attached to the front surfaces of the core members 22, 32, and front piece portions 201, 301 extending rearward from the edges of the main body portions 200, 300. The rear plates 21 and 31 have main body portions 210 and 310 attached to the rear surfaces of the core members 22 and 32, and rear piece portions 211 and 311 extended from the edges of the main body portions 210 and 310 to the front side.

  The front piece 201 of the first panel 2 includes a front extension 201 a that is extended to a position behind the front piece 301 of the second panel 3. The rear piece portion 211 of the first panel 2 includes a rear extension portion 211a that extends 311 from the rear piece portion of the second panel 3 to a position on the front side.

  The first panel 2 further includes a connecting plate 4 that is fixed to both the front extension 201a and the rear extension 211a.

  The front pieces 201 and 301 of the first panel 2 and the second panel 3 are in a position where they abut each other, and the connecting plate 4 is connected to both the front piece 301 and the rear piece 311 of the second panel 3. It is in a position that does not overlap.

  By providing the first feature described above, in the panel unit 1 according to the first and second embodiments, the front plate 20 and the rear plate 21 of the first panel 2 are connected via the connecting plate 4 at the portion where the panels 2 and 3 meet. The fire resistance of the first panel 2 can be improved.

  In addition, in the panel unit 1 of the first and second embodiments, since the front piece portions 201 and 301 of the panels 2 and 3 are in a position where they abut each other, when viewed from the front side, between the first panel 2 and the second panel 3. The joint width of the joint formed can be made as small as possible.

  Furthermore, the panel unit 1 of Embodiment 1 and 2 is further provided with the following structure as a 2nd characteristic.

  That is, in the panel unit 1 of the first and second embodiments, the first panel 2 further includes the fixing screw 5 that fixes the connecting plate 4 to each of the front extension portion 201a and the rear extension portion 211a. The fixing screw 5 has a head 50 that fits between the connecting plate 4 and the core member 32 of the second panel 3.

  By providing the second feature described above, in the panel unit 1 of the first and second embodiments, the connection plate 4 can be easily fixed to the extensions 201 a and 211 a by screwing the fixing screw 5. In addition, in the panel unit 1 of the first and second embodiments, the head 50 of the fixing screw 5 hits the front piece 301 of the second panel 3 and the joint width between the front pieces 201 and 301 of the panels 2 and 3 is increased. Can be prevented.

  Furthermore, the panel unit 1 of Embodiment 2 is additionally provided with the following configuration as a third feature.

  That is, in the panel unit 1 of the second embodiment, the front piece 301 of the second panel 3 includes a second front extension 301 a that extends to a position behind the front piece 201 of the first panel 2. The rear piece portion 311 of the second panel 3 includes a second rear extension portion 311 a that is extended to a position in front of the rear piece portion 211 of the first panel 2.

  The 2nd panel 3 further has the 2nd connection board 7 fixed to both the 2nd front extension part 301a and the 2nd back extension part 311a.

  The second connecting plate 7 is in a position that does not overlap any of the front piece 201 and the rear piece 211 of the first panel 2 and is in a position that does not overlap the connecting plate 4.

  By providing the third feature described above, in the panel unit 1 of the second embodiment, the front plate 30 and the rear plate 31 of the second panel 3 are connected via the second connecting plate 7 in the portion where the panels 2 and 3 are abutted. The fire resistance of the second panel 3 can be improved.

  Moreover, in the panel unit 1 of the second embodiment, the joint width between the front piece portions 201 and 301 of the panels 2 and 3 when the second connecting plate 7 hits the front piece portion 201 and the connecting plate 4 of the first panel 2. Can be prevented from spreading.

  Furthermore, the panel unit 1 of Embodiment 2 is additionally provided with the following configuration as a fourth feature.

  That is, in the panel unit 1 of the second embodiment, the front extension 201a is located in a partial region in the left-right direction of the front piece 201 of the first panel 2, and the rear extension 211a is the rear of the first panel 2. It is located in a partial region of the left and right direction of the one part 211. The second front extension 301 a is located in a partial region in the left-right direction of the front piece 301 of the second panel 3, and the second rear extension 311 a is in the left-right direction of the rear piece 311 of the second panel 3. Located in some area.

  The region where the front extension 201a is located and the region where the second front extension 301a is located are in positions that do not overlap each other, and the region where the rear extension 211a is located and the region where the second rear extension 311a is located are They are in positions that do not overlap each other.

  By providing the fourth feature described above, in the panel unit 1 according to the second embodiment, the joint plate 4 and the second joint plate 7 overlap each other in the vertical direction, and the joint width between the front pieces 201 and 301 of the panels 2 and 3. Can be more reliably prevented from spreading.

  Furthermore, the panel unit 1 of Embodiment 2 is additionally provided with the following configuration as a fifth feature.

  That is, in the panel unit 1 of Embodiment 2, the second panel 3 further includes a second fixing screw 8 that fixes the second connecting plate 7 to each of the second front extension 301a and the second rear extension 311a. The second fixing screw 8 has a head 80 that fits between the second connecting plate 7 and the core member 22 of the first panel 2.

  By providing the fifth feature described above, in the panel unit 1 according to the second embodiment, the second connecting plate 7 can be easily fixed to the extensions 301 a and 311 a by screwing the second fixing screw 8. . In addition, in the panel unit 1 of the second embodiment, the head 80 of the second fixing screw 8 hits the front piece 201 of the first panel 2 and the joint width between the front pieces 201 and 301 of the panels 2 and 3 is increased. Can be prevented.

  Although the present invention has been described based on the embodiments shown in the accompanying drawings, the present invention is not limited to the above-described embodiments, and appropriate design changes can be made within the intended scope of the present invention. It is.

DESCRIPTION OF SYMBOLS 1 Panel unit 2 1st panel 20 Front board 200 Main-body part 201 Front piece part (lower front piece part)
201a Front extension 21 Rear plate 210 Main body 211 Rear piece (lower rear piece)
211a Rear extension 22 Core 3 Second panel 301 Front piece (upper front piece)
301a Second front extension 31 Rear plate 310 Main body 311 Rear piece (upper rear piece)
311a Second rear extension 32 Core 4 Connecting plate 5 Fixing screw 50 Head 7 Second connecting plate 8 Second fixing screw 80 Head

Claims (5)

It has a first panel and a second panel arranged in one direction,
Each of the first panel and the second panel includes a metal front plate located on the front side, a metal rear plate located on the rear side, and a core member located between the front plate and the rear plate. A sandwich panel having
The front plate has a main body part attached to the front surface of the core member, and a front piece part extended from the edge of the main body part to the rear side,
The rear plate has a main body portion attached to the rear surface of the core member, and a rear piece portion extended from the edge of the main body portion to the front side,
The front piece portion of the first panel includes a front extension portion extended to a position behind the front piece portion of the second panel,
The rear piece portion of the first panel includes a rear extension portion that is extended to a position in front of the rear piece portion of the second panel,
The first panel further includes a connecting plate fixed to both the front extension and the rear extension,
The front pieces of the first panel and the second panel are in a position where they abut each other, and the connecting plate does not overlap any of the front piece and the rear piece of the second panel. Panel unit characterized by being in position. The first panel further includes a fixing screw for fixing the connecting plate to each of the front extension part and the rear extension part,
The panel unit according to claim 1, wherein the fixing screw has a head portion that fits between the connecting plate and the core member of the second panel. The front piece portion of the second panel includes a second front extension portion extended to a position on the rear side of the front piece portion of the first panel,
The rear piece portion of the second panel includes a second rear extension portion extended to a position on the front side of the rear piece portion of the first panel,
The second panel further includes a second connecting plate fixed to both the second front extension and the second rear extension,
The said 2nd connection board exists in the position which does not overlap in any of the said front piece part of the said 1st panel, and the said back piece part, and exists in the position which does not overlap with the said connection board. The panel unit according to 1 or 2. The front extension is located in a partial region in the longitudinal direction of the front piece of the first panel,
The rear extension is located in a partial region in the longitudinal direction of the rear piece of the first panel,
The second front extension is located in a partial region in the longitudinal direction of the front piece of the second panel,
The second rear extension is located in a partial region in the longitudinal direction of the rear piece of the second panel,
The region where the front extension is located and the region where the second front extension is located are not overlapped with each other, and the region where the rear extension is located and the region where the second rear extension is located are: The panel unit according to claim 3, wherein the panel units are in positions that do not overlap each other. The second panel further includes a second fixing screw for fixing the second connecting plate to each of the second front extension and the second rear extension,
5. The panel unit according to claim 3, wherein the second fixing screw has a head portion that fits between the second connecting plate and the core member of the first panel.

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