Reinforced sandwich panel and its mounting structure

Abstract

To provide a reinforced sandwich panel and its mounting structure capable of improving bending rigidity of a sandwich panel having a metal outer skin with a concave-convex shape.SOLUTION: A reinforced sandwich panel 1 comprises a panel body 5 having a metal outer skin 2,3 and a core material 4 located between them, a reinforcement member 6 attached to the metal outer skin 2, and a fixture 7 for fixing the reinforcement member 6 to the metal outer skin 2. The metal outer skin 2 is provided with a plurality of projecting sections 20 extending in one direction and parallel to each other. The reinforcement member 6 has a longitudinal direction along the one direction. A mounting structure for the reinforced sandwich panel 1 comprises the reinforced sandwich panel 1 and a plurality of base materials 8 to which the reinforced sandwich panel 1 is mounted. Each base material 8 is a member extending in a direction intersecting the longitudinal direction of projecting sections 20. The reinforcement member 6 is fixed to a portion of the metal outer skin 2 that is different from the portion attached to the plurality of base materials 8.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present disclosure relates to a reinforced sandwich panel and its mounting structure.

Background Art

[0002] Patent Document 1 describes a sandwich panel including a front panel, a back panel, and a core material disposed therebetween.

[0003] A plurality of ridges are provided on the front panel over the entire length in the longitudinal direction of the sandwich panel. Each of the front panel and the back panel is formed by bending a metal plate by bending such as roll forming.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] By the way, the sandwich panel described in Patent Document 1, in which a plurality of ridges are provided on the front panel, has higher bending rigidity than a flat sandwich panel in which no plurality of ridges are provided on the front panel.

[0006] In order to improve the bending rigidity of the sandwich panel in this way, it is necessary to make at least one of the front panel and the back panel have a concavo-convex shape, or increase the thickness of the front panel, the back panel, or the core material.

[0007] However, there are limitations in the plate thickness and the concavo-convex shape in terms of the workability of the metal plate, and there are also limitations in the plate thickness of the sandwich panel to be formed in the forming equipment of the sandwich panel. Therefore, there is a problem that the adjustment of the bending rigidity of the sandwich panel has low freedom.

[0008] In view of the above circumstances, the present disclosure aims to provide a reinforced sandwich panel and a mounting structure thereof that can improve the bending rigidity of a sandwich panel having a metal outer shell with an uneven shape. [Means for solving the problem]

[0009] A reinforced sandwich panel according to one embodiment of the present disclosure comprises a panel body having a pair of metal sheaths facing each other and a core material located between the pair of metal sheaths. The reinforced sandwich panel according to one embodiment further comprises a reinforcing member attached to one of the pair of metal sheaths, and a fastener for fixing the reinforcing member to the one metal sheath. The one metal sheath is provided with a plurality of protrusions extending in one direction and parallel to each other. The reinforcing member has a longitudinal direction along the one direction.

[0010] Furthermore, a mounting structure for a reinforced sandwich panel according to one embodiment of the present disclosure comprises the reinforced sandwich panel and a plurality of base materials positioned at intervals from each other and to which the reinforced sandwich panel is attached in a spanned state. Each of the plurality of base materials is a member extending in a direction intersecting the one direction in which the protruding portion extends. The reinforcing member is fixed to a portion of the one metal sheath that is separate from the portion attached to the plurality of base materials. [Effects of the Invention]

[0011] According to one embodiment of the reinforced sandwich panel and its mounting structure relating to this disclosure, the bending rigidity of a sandwich panel having an uneven metal outer shell can be improved. [Brief explanation of the drawing]

[0012] [Figure 1] Figure 1 is a schematic perspective view showing a reinforced sandwich panel and its mounting structure according to one embodiment of the present disclosure. [Figure 2] Figure 2 is a schematic front view showing the reinforced sandwich panel described above, viewed along its longitudinal direction. [Modes for carrying out the invention]

[0013] (One embodiment) 1. Overview The reinforced sandwich panel 1 of one embodiment shown in Figure 1 comprises a panel body 5 having a pair of metal outer shells 2, 3 facing each other and a core material 4 located between the pair of metal outer shells 2, 3. The reinforced sandwich panel 1 further comprises a reinforcing member 6 attached to one of the metal outer shells 2 of the pair of metal outer shells 2, 3, and a fastener 7 for fixing the reinforcing member 6 to the one metal outer shell 2. The one metal outer shell 2 is provided with a plurality of protrusions 20 extending in one direction and parallel to each other. The reinforcing member 6 has a longitudinal direction along the aforementioned one direction.

[0014] Furthermore, the mounting structure of the reinforced sandwich panel 1 in one embodiment comprises the reinforced sandwich panel 1 and a plurality of base materials 8 positioned at intervals from each other and to which the reinforced sandwich panel 1 is attached in a spanned state. Each of the plurality of base materials 8 is a member that extends in a direction intersecting the aforementioned direction, which is the direction in which the protruding portion 20 extends. The reinforcing member 6 is fixed to one of the metal outer shells 2 in a portion separate from the portion attached to the plurality of base materials 8.

[0015] In the reinforced sandwich panel 1 and its mounting structure of this embodiment, which have the above configuration, the bending rigidity of the uneven metal outer shell 2, which has multiple protrusions 20, can be further improved by the reinforcing member 6 having a longitudinal direction along one direction in which the protrusions 20 extend. Therefore, in the reinforced sandwich panel 1 and its mounting structure of this embodiment, the bending rigidity of the sandwich panel having the uneven metal outer shell 2 can be improved.

[0016] 2.Details Next, each component of the reinforced sandwich panel 1 (hereinafter referred to as "panel 1") of the present embodiment shown in FIGS. 1 and 2 and its mounting structure will be described in more detail. The mounting structure of panel 1 constitutes a roof base with a substantially flat upper surface, for example. Hereinafter, based on the mounting structure shown in FIG. 1, the direction in which a plurality of rib portions 20 provided on panel 1 are arranged is defined as the left-right direction, the direction in which the plurality of rib portions 20 extend is defined as the front-back direction, and the thickness direction of panel 1 is defined as the up-down direction, and each component of panel 1 and its mounting structure will be described in detail.

[0017] Panel 1 includes a panel body 5, a reinforcing member 6, and a fixture 7. The mounting structure of panel 1 includes panel 1 and a plurality of base materials 8.

[0018] 2-1. Panel Body The panel body 5 has a pair of metal outer skins 2 and 3 facing each other and a core material 4 located between the pair of metal outer skins 2 and 3. A plurality of rib portions 20 extending in one direction and parallel to each other are provided on one of the metal outer skins 2.

[0019] In the present embodiment, one of the metal outer skins 2 is the metal outer skin facing the lower side (indoors side), and the other metal outer skin 3 is the metal outer skin facing the upper side (outdoors side).

[0020] The panel body 5 is a plate-shaped member having a longitudinal direction parallel to the one direction in which the rib portions 20 extend. The panel body 5 has a length direction parallel to the front-back direction, a width direction parallel to the left-right direction, and a thickness direction parallel to the up-down direction.

[0021] Each of the metal outer skins 2 and 3 is composed of a metal plate. As the metal plate, for example, a stainless steel plate, a galvanized steel plate, a painted steel plate, a galvalume steel plate (registered trademark), etc. are used. Each of the metal outer skins 2 and 3 is formed by bending such as roll forming. Each of the metal outer skins 2 and 3 has a cross-sectional shape perpendicular to the length direction (front-back direction) that is constant over the entire length in the length direction.

[0022] The core material 4 is filled between the metal outer skins 2 and 3. The core material 4 is composed of a heat insulating material or a refractory material. As the core material 4, for example, an inorganic fiber board such as rock wool or glass wool, or a resin foam such as phenolic foam, urethane foam or isocyanurate foam is used.

[0023] On the lower (indoor side) metal outer skin 2, a plurality of protrusions 20 extending in the front-rear direction and parallel to each other are provided. Each of the plurality of protrusions 20 protrudes toward the lower (indoor side). Each of the plurality of protrusions 20 is provided over the entire length in the length direction (front-rear direction) of the metal outer skin 2. The plurality of protrusions 20 are spaced apart in the width direction (left-right direction) of the metal outer skin 2. In the present embodiment, the plurality of protrusions 20 are arranged at equal intervals.

[0024] The metal outer skin 2 has a plurality of flat plate portions 21 located between two adjacent protrusions 20 in the width direction (left-right direction). The protrusions 20 and the flat plate portions 21 are alternately arranged one by one in the width direction of the metal outer skin 2.

[0025] The plurality of protrusions 20 include an end protrusion 20a located at one end in the width direction of the metal outer skin 2, an end protrusion 20b located at the other end in the width direction of the metal outer skin 2, and a plurality of intermediate protrusions 20c located between the end protrusions 20a and 20b.

[0026] Each of the protrusions 20a, 20b, and 20c has at least one side plate portion 22 that protrudes obliquely downward (indoors) from the adjacent flat plate portion 21, and a tip plate portion 23 that is continuous with the side plate portion 22 and is located at the tip in the protruding direction. The side plate portion 22 is flat or substantially flat, and the tip plate portion 23 is flat. The tip plate portion 23 is parallel to the flat plate portion 21.

[0027] In the present embodiment, the metal outer skin 2 has three intermediate protrusions 20c. Each of the three intermediate protrusions 20c has two side plate portions 22 and one tip plate portion 23. The two side plate portions 22 are provided such that the interval between the two side plate portions becomes narrower toward the portion closer to the tip plate portion 23.

[0028] In this embodiment, the end projection 20a is located at the left end of the metal shell 2. The end projection 20a has one right-side plate portion 22 and one tip plate portion 23. The end projection 20a further has an edge portion 24 that extends diagonally upward (outside) from the left end of the tip plate portion 23. The edge portion 24 is shorter in the vertical direction than the side plate portion 22, for example, about one-third the length of the side plate portion 22.

[0029] In this embodiment, the end projection 20b is located at the right end of the metal shell 2. The end projection 20b has one left side plate portion 22 and one tip plate portion 23. The end projection 20b further has an edge portion 24 that extends diagonally upward (outside) from the right end of the tip plate portion 23. The edge portion 24 is shorter in the vertical direction than the side plate portion 22, for example, about one-third the length of the side plate portion 22.

[0030] The upper (outdoor) metal shell 3 has multiple grooves 30 that extend in one direction (front-to-back direction) and are parallel to each other. Each of the multiple grooves 30 is recessed toward the lower (indoor) side. Each of the multiple grooves 30 is provided along the entire length (front-to-back direction) of the metal shell 3. The multiple grooves 30 are spaced apart in the width direction (left-to-right direction) of the metal shell 3. In this embodiment, the multiple grooves 30 are arranged at equal intervals.

[0031] The metal outer shell 3 has a plurality of flat plate portions 31 that are arranged in the width direction (left-right direction) relative to the groove portion 30. The flat plate portions 31 and the groove portion 30 are arranged alternately one by one in the width direction of the metal outer shell 3.

[0032] In this embodiment, the metal outer shell 3 has three grooves 30. Each of the three grooves 30 has two side plate portions 32 that project diagonally downward (towards the indoor side) from each of two adjacent flat plate portions 31 in the left-right direction, and a bottom plate portion 33 that is continuous with the two side plate portions 32 and forms the bottom surface of the groove 30. Each of the two side plate portions 32 and the bottom plate portion 33 is flat. The bottom plate portion 33 is parallel to the flat plate portions 31. The two side plate portions 32 are arranged such that the distance between them becomes narrower as they approach the bottom plate portion 33. The vertical length of each groove 30 is shorter than the vertical length of each protrusion 20, for example, one-third or less.

[0033] The three grooves 30 are positioned on the metal outer shell 3, opposite to the three intermediate protrusions 20c of the metal outer shell 2.

[0034] In this embodiment, of the three grooves 30, the central groove 30 is wider than the grooves 30 located at both ends. The bottom plate portion 33 of the central groove 30 is slightly longer in the left-right direction than the bottom plate portions 33 of the grooves 30 at both ends.

[0035] The metal outer shell 3 further includes a joint covering portion 34 and an edge portion 35 located at one end in the width direction (the left end in this embodiment), and a recessed step portion 36 and an edge portion 37 located at the other end in the width direction (the right end in this embodiment). The joint covering portion 34 is continuous with the flat plate portion 31 at the left end, and the recessed step portion 36 is continuous with the flat plate portion 31 at the right end.

[0036] The joint cover portion 34 protrudes outward (to the left) from the metal outer shell 2. The cross-sectional shape of the joint cover portion 34 is U-shaped, opening to the right. The edge portion 35 is continuous with the joint cover portion 34 and is located below (indoor side) and to the right of the joint cover portion 34. The cross-sectional shape of the edge portion 35 is L-shaped. The edge portion 35 is located opposite the left edge portion 24 of the metal outer shell 2.

[0037] The recessed step portion 36 is recessed so as to be located below (indoor side) the flat plate portion 31. The cross-sectional shape of the recessed step portion 36 is L-shaped. The recessed step portion 36 is located opposite the side plate portion 22 of the end projection portion 20b at the right end of the metal outer shell 2. The length of the recessed step portion 36 in the left-right direction is slightly longer than the length of the joint covering portion 34 in the left-right direction. The length of the recessed step portion 36 in the up-down direction is slightly longer than the length of the joint covering portion 34 in the up-down direction. The edge portion 37 is continuous with the recessed step portion 36 and is folded back to the lower side (indoor side) of the recessed step portion 36.

[0038] The metal outer shells 2 and 3 are arranged such that the left edge 35 of metal outer shell 3 faces the left edge 24 of metal outer shell 2, and the right edge 37 of metal outer shell 3 faces the side plate portion 22 of the right end projection 20b of metal outer shell 2. The core material 4 is filled between the vertically opposing portions of the metal outer shells 2 and 3.

[0039] In the panel body 5, the left joint covering portion 34 of the metal outer shell 3 protrudes to the left of the core material 4 and the metal outer shell 2, and a part of the side plate portion 22, the tip plate portion 23, and the right edge portion 24 of the right end projection portion 20b of the metal outer shell 2 protrude to the right of the core material 4 and the metal outer shell 3.

[0040] A tape-shaped sealing material 50 is attached to the upper (outdoor) side of the tip plate portion 23 of the right end projection portion 20b of the metal outer shell 2. Packings 51 are attached to the left end face of the core material 4, the left edge portion 35 of the metal outer shell 3, and the left edge portion 24 of the metal outer shell 2. The packings 51 are made of an organic material.

[0041] 2-2. Reinforcement Members The reinforcing member 6 has a longitudinal direction along the direction in which the protruding portion 20 extends. In this embodiment, the reinforcing member 6 is a channel steel and opens on the side opposite to the panel body 5. More specifically, the reinforcing member 6 is a lip channel steel with a C-shaped cross-section perpendicular to the longitudinal direction.

[0042] The reinforcing member 6 has a web 60 and a pair of flanges 61 extending downward (indoors) from both the left and right ends of the web 60. Each of the pair of flanges 61 has an L-shaped cross-section. Each of the pair of flanges 61 has a main body portion that extends linearly from both the left and right ends of the web 60 and a tip portion that extends parallel to the web 60 from its tip. The reinforcing member 6 has an opening 62 located between the tip portions of the pair of flanges 61.

[0043] The reinforcing member 6 is shorter than the protruding portion 20. For example, the reinforcing member 6 is shorter than the distance between two adjacent base materials 8, 8 among the multiple base materials 8 that support the panel 1.

[0044] The reinforcing member 6 has a through hole 63 into which a fastener 7 is inserted. The fastener 7 fits snugly into the edge of the through hole 63 of the reinforcing member 6 without any gaps. In this embodiment, the through hole 63 is provided in the web 60. The diameter of the through hole 63 is set to match the diameter of the fastener 7. The web 60 is provided with at least one through hole 63. If the web 60 is provided with multiple through holes 63, the multiple through holes 63 are positioned at intervals in the longitudinal direction (front-to-back direction) of the web 60.

[0045] The reinforcing member 6 is fixed to the metal shell 2 by at least one fastener 7. In this embodiment, the reinforcing member 6 is fixed to the protruding portion 20 of the metal shell 2 by the fastener 7. When the reinforcing member 6 is fixed to the metal shell 2, the web 60 contacts the tip plate portion 23 of the protruding portion 20, and the fastener 7 fits snugly into the edge of the through hole 63 of the web 60. The fastener 7 penetrates the tip plate portion 23 of the protruding portion 20, and the tip of the fastener 7 is embedded in the core material 4. By fixing the reinforcing member 6 to the metal shell 2 in this way with a fastener 7 that fits snugly into the edge of the through hole 63 of the reinforcing member 6, misalignment of the reinforcing member 6 relative to the metal shell 2 is prevented, and integration of the metal shell 2 and the reinforcing member 6 is easily achieved.

[0046] In this embodiment, panel 1 includes a plurality of reinforcing members 6. The plurality of reinforcing members 6 are fixed, for example, to each of the two intermediate protrusions 20c at both ends of the three intermediate protrusions 20c. In addition, a plurality (two in this embodiment) of reinforcing members 6 are attached to each of the two intermediate protrusions 20c at both ends at intervals along the longitudinal direction of the protrusion 20c.

[0047] The reinforcing member 6 can be fixed to the metal shell 2 at the factory or at the construction site.

[0048] 2-3. Fixtures The fastener 7 is a component that secures the reinforcing member 6 to the metal outer shell 2. The fastener 7 is, for example, a self-drilling screw or a tapping screw, and is made of metal. The fastener 7 used is one with a diameter that fits snugly against the edge of the through hole 63 of the reinforcing member 6 without any gaps.

[0049] 2-4. Multiple base materials Multiple base materials 8 are positioned at intervals from each other, and the panel 1 is installed across them.

[0050] Each of the multiple base materials 8 in this embodiment is a member that extends in the width direction (left-right direction) of the panel body 5. The multiple base materials 8 are parallel to each other and are spaced apart in the front-back direction (eaves-ridge direction). Each of the multiple base materials 8 is, for example, a purlin. In this embodiment, each of the multiple base materials 8 is made of lip channel steel that opens toward the ridge side. The distance between two adjacent base materials 8,8 is, for example, 1 to 4 m.

[0051] 2-5. Mounting structure of reinforced sandwich panels The mounting structure for panel 1 comprises panel 1 and a plurality of base materials 8. This mounting structure further includes fasteners (not shown), such as screws, for fixing panel 1 to the plurality of base materials 8. The fasteners penetrate the metal outer sheath 2, 3 and core material 4 of panel 1, fixing panel 1 to each base material 8.

[0052] In the mounting structure of panel 1, the multiple reinforcing members 6 are fixed to a portion of the metal shell 2 that is not attached to the multiple base materials 8. Some of the reinforcing members 6 are located between two adjacent base materials 8, 8. The panel 1 is fixed to the base materials 8 by fasteners such as screws in a portion of the panel body 5 that is not fixed to the reinforcing members 6.

[0053] In the mounting structure of panel 1, panel 1 is attached to multiple base materials 8 by being spanned across them. Multiple reinforcing members 6 are located away from the multiple base materials 8 in the front-to-back direction (towards the eaves and ridge). Note that the multiple reinforcing members 6 are separate members from the rafters and rafters that make up the building's frame, and are connected only to the panel body 5.

[0054] 3. Effects In the panel 1 of this embodiment described above, the bending rigidity of the uneven metal skin 2, which has multiple protrusions 20, can be further improved by the reinforcing member 6 having a longitudinal direction along one direction in which the protrusions 20 extend. Therefore, in the panel 1 of this embodiment, the bending rigidity of the sandwich panel having the uneven metal skin 2 can be improved.

[0055] Furthermore, in the panel 1 of this embodiment, the reinforcing member 6 is fixed to the portion of the metal outer shell 2 where the protruding portion 20 is provided and the out-of-plane rigidity is improved. Therefore, even in the event of a fire, the protruding portion 20 is less likely to deform out of plane, and it is easier to maintain the state in which the reinforcing member 6 is integrally fixed to the protruding portion 20.

[0056] Furthermore, in the panel 1 of this embodiment, the reinforcing member 6 is fixed to the portion of the metal outer shell 2 excluding the part that is fixed to the base material 8. Therefore, when attaching the panel 1 to multiple base materials 8, the reinforcing member 6 is less likely to get in the way.

[0057] Furthermore, in the panel 1 of this embodiment, the reinforcing member 6 is fixed to the panel body 5 by a fastener 7 that fits snugly into the edge of the through hole 63 of the reinforcing member 6. Therefore, in the panel 1 of this embodiment, the reinforcing member 6 is easily integrated with the panel body 5, and the bending rigidity of the reinforcing member 6 is easily enhanced.

[0058] Furthermore, in the panel 1 of this embodiment, since the reinforcing member 6 is made of channel steel, it is easy to increase the bending rigidity of the panel 1 while keeping the weight of the reinforcing member 6 down. In addition, since the reinforcing member 6 made of channel steel opens on the opposite side from the panel body 5 and has through holes 63 in the web 60, it is easy to attach the reinforcing member 6 to the panel body 5.

[0059] Furthermore, in the panel 1 of this embodiment, the reinforcing member 6 is fixed to the panel body 5 not with adhesive, but with metal fasteners such as self-drilling screws. Therefore, in the panel 1 of this embodiment, it is possible to prevent the reinforcing member 6 from peeling off the panel body 5 in the event of a fire, and it is easier to ensure bending rigidity even in the event of a fire.

[0060] Furthermore, in the mounting structure of the panel 1 of this embodiment, the bending rigidity of the panel 1 can be increased by the reinforcing member 6, which allows for wider spacing between the multiple base materials 8 that support the panel 1.

[0061] Furthermore, in this embodiment, since the upper (outdoor) metal outer shell 3 of panel 1 is provided with multiple grooves 30, the bending rigidity of panel 1 is further improved.

[0062] In the mounting structure of panel 1 of this embodiment, the upper (outdoor) metal shell 3 does not have multiple protruding parts 20 and is substantially flat, making it easy to attach a waterproof sheet to the upper (outdoor) surface of the metal shell 3 when used as a roof base.

[0063] 4. Variations Next, we will describe variations of the panel 1 and its mounting structure described above. The variations described below can be combined as appropriate.

[0064] The reinforcing member 6 only needs to be fixed to the metal outer shell 2 which is provided with a plurality of protruding portions 20. The fixing location of the reinforcing member 6 is not limited to the tip plate portion 23 of the protruding portion 20, but may also be the side plate portion 22 or the flat plate portion 21 of the protruding portion 20.

[0065] The reinforcing member 6 is not limited to channel steel; it may also be a metal member having an uneven shape, or it may be a flat plate.

[0066] A gap may be formed between the fastener 7 and the edge of the through hole 63 of the reinforcing member 6, and the dimensions of the through hole 63 can be set as appropriate.

[0067] Panel 1 may further include other reinforcing members fixed to the metal shell 3.

[0068] Panel 1 may be used not only as a roof base but also as a wall base. In this case, Panel 1 is attached to multiple base materials 8 that extend vertically and are spaced apart horizontally.

[0069] The mounting structure of panel 1 may include multiple panels 1 arranged in the left-right direction (along the eaves), the front-back direction (towards the eaves and ridge), or both.

[0070] In this case, two adjacent panels 1 in the left-right direction are connected as follows: The joint cover portion 34 of the other (right) panel 1 fits into the recessed step portion 36 on the upper (outdoor) side of the panel 1 on the left side. The end projection portion 20b of the metal sheath 2 of the left panel 1 overlaps the lower (indoor) side of the end projection portion 20a of the metal sheath 2 of the right panel 1 on the indoor side, via a sealing material 50. A packing 51 is sandwiched between the right side end surface of the core material 4 of the left panel 1 and the left side end surface of the core material 4 of the other panel 1. The two adjacent panels 1 in the left-right direction are fixed to the base material 8 by fasteners such as screws that pass through the parts where they are connected to each other.

[0071] The panel body 5 is not limited to the structure shown in Figures 1 and 2. The metal outer shell 2 may have an uneven shape with multiple protrusions 20, and the shape, size, and number of the protrusions 20 are not limited to those shown in Figures 1 and 2. The metal outer shell 3 may also be a flat plate without multiple grooves 30.

[0072] (summary) As described above in one embodiment and its modified form, the reinforced sandwich panel (1) of the first embodiment has the following configuration.

[0073] In other words, the reinforced sandwich panel (1) in the first embodiment comprises a panel body (5) having a pair of metal outer shells (2,3) facing each other and a core material (4) located between the pair of metal outer shells (2,3). The reinforced sandwich panel (1) in the first embodiment further comprises a reinforcing member (6) attached to one of the pair of metal outer shells (2,3) (2), and a fastener (7) for fixing the reinforcing member (6) to the one metal outer shell (2). The one metal outer shell (2) is provided with a plurality of protrusions (20) extending in one direction and parallel to each other. The reinforcing member (6) has a longitudinal direction along the aforementioned one direction.

[0074] In the first embodiment of the reinforced sandwich panel (1) having the above configuration, the bending rigidity of the uneven metal skin (2) provided with a plurality of protrusions (20) can be further improved by a reinforcing member (6) having a longitudinal direction along one direction in which the protrusions (20) extend. Therefore, in the first embodiment of the reinforced sandwich panel (1), the bending rigidity of the sandwich panel having the uneven metal skin (2) can be improved.

[0075] Furthermore, as described above in one embodiment and its modified form, the reinforced sandwich panel (1) of the second embodiment additionally includes the following configuration in addition to the configuration of the first embodiment.

[0076] In other words, in the reinforced sandwich panel (1) of the second embodiment, the reinforcing member (6) has a through hole (63) into which a fastener (7) is inserted, and the fastener (7) fits snugly into the edge of the through hole (63) of the reinforcing member (6) without any gaps.

[0077] In the second embodiment of the reinforced sandwich panel (1) having the above configuration, the reinforcing member (6) can be fixed to the panel body (5) by a fastener (7) that fits snugly into the edge of the through hole (63) of the reinforcing member (6). Therefore, in the second embodiment of the reinforced sandwich panel (1), the reinforcing member (6) is easily integrated with the panel body (5), and the bending rigidity is easily increased.

[0078] Furthermore, as described above in one embodiment and its modified form, the reinforced sandwich panel (1) of the third embodiment additionally includes the following configuration in addition to the configuration of the first or second embodiment.

[0079] In other words, in the reinforced sandwich panel (1) of the third embodiment, the reinforcing member (6) is fixed to the protruding portion (20).

[0080] In the third embodiment of the reinforced sandwich panel (1) having the above configuration, the reinforcing member (6) is fixed to the portion of the metal skin (2) where the protruding portion (20) is provided to improve out-of-plane rigidity. Therefore, in the third embodiment of the reinforced sandwich panel (1), the protruding portion (20) is less likely to deform out of plane even in the event of a fire, and the metal skin (2) and the reinforcing member (6) are more likely to maintain an integrated state.

[0081] Furthermore, as described above in one embodiment and its modified form, the reinforced sandwich panel (1) of the fourth embodiment additionally includes the following configuration in addition to the configuration of any one of the first to third embodiments.

[0082] In other words, in the reinforced sandwich panel (1) of the fourth embodiment, one of the metal outer shells (2) is a metal outer shell facing the indoor side.

[0083] In the fourth embodiment of the reinforced sandwich panel (1) having the above configuration, the reinforcing member (6) fixed to the panel body (5) is not exposed to the outside, and the bending rigidity can be improved without changing the appearance of the reinforced sandwich panel (1).

[0084] Furthermore, as described in the embodiment and its modified form above, the reinforced sandwich panel (1) of the fifth embodiment additionally includes the following configuration in addition to the configuration of any one of the first to fourth embodiments.

[0085] In other words, in the fifth embodiment of the reinforced sandwich panel (1), the reinforcing member (6) is a channel steel and has an opening on the opposite side from the panel body (5).

[0086] In the fifth embodiment of the reinforced sandwich panel (1) having the above configuration, since the reinforcing member (6) is channel steel, the weight of the reinforcing member (6) can be reduced while increasing the bending rigidity of the sandwich panel by the reinforcing member (6). In addition, in the fifth embodiment of the reinforced sandwich panel (1), since the channel steel reinforcing member (6) opens on the opposite side from the panel body (5), it is easy to fix the reinforcing member (6) to the panel body (5) with the fastener (7).

[0087] Furthermore, as in the embodiment described above and its modified form, the mounting structure of the sixth embodiment of the reinforced sandwich panel (1) comprises a reinforced sandwich panel (1) of any one of the first to fifth embodiments and a plurality of base materials (8). The plurality of base materials (8) are positioned at intervals from each other and are attached in a manner that the reinforced sandwich panel (1) spans across them. Each of the plurality of base materials (8) is a member that extends in a direction intersecting the aforementioned direction, which is the direction in which the protruding portion (20) extends. The reinforcing member (6) is fixed to a portion of one of the metal outer shells (2) that is not attached to the plurality of base materials (8).

[0088] In the mounting structure of the reinforced sandwich panel (1) according to the sixth embodiment, the bending rigidity of the uneven metal skin (2) with multiple protrusions (20) can be further improved by a reinforcing member (6) having a longitudinal direction along one direction in which the protrusions (20) extend. Therefore, the mounting structure of the reinforced sandwich panel (1) according to the sixth embodiment can improve the bending rigidity of the sandwich panel having the uneven metal skin (2). In addition, in the mounting structure of the reinforced sandwich panel (1) according to the sixth embodiment, the reinforcing member (6) is fixed to a part of the metal skin (2) that is not attached to the multiple base materials (8). Therefore, when attaching the reinforced sandwich panel (1) to the multiple base materials (8), interference between the reinforcing member (6) and each base material (8) is less likely.

[0089] Although this disclosure has been described above based on the embodiments shown in the attached drawings, the above embodiments are merely examples of this disclosure, and appropriate design modifications are possible within the scope intended by this disclosure. [Explanation of Symbols]

[0090] 1 Reinforced sandwich panel 2 Metal shell 20 Projection part 3 Metal shell 4 Core material 5 Panel body 6. Reinforcement members 63 Through hole 7 Fixtures 8. Substrate

Claims

1. A panel body having a pair of metal outer shells facing each other and a core material located between the pair of metal outer shells, A reinforcing member attached to one of the pair of metal outer shells, The system includes a fastener for fixing the reinforcing member to one of the metal outer shells, The aforementioned metal outer shell is provided with a plurality of parallel ridges extending in one direction, projecting toward the opposite side from the other metal outer shell of the pair. The reinforcing member has a longitudinal direction along the one direction, The reinforcing member is fixed to the protruding portion, The aforementioned fastener is made of metal. A reinforced sandwich panel characterized by the following features.

2. The reinforcing member has a through hole into which the fastener is inserted, The fastener fits snugly into the edge of the through hole of the reinforcing member, The reinforced sandwich panel according to feature 1.

3. The reinforcing member is a channel steel and has an opening on the side opposite to the panel body. The reinforced sandwich panel according to claim 1 or 2.

4. A reinforced sandwich panel according to any one of claims 1 to 3, It comprises a plurality of base materials positioned at intervals from each other and to which the reinforced sandwich panel is attached in a manner that spans across them, Each of the aforementioned plurality of base materials is a member that extends in a direction intersecting the one direction in which the protruding portion extends, The reinforcing member is fixed to a portion of the metal outer shell that is separate from the portion attached to the plurality of base materials. A mounting structure for a reinforced sandwich panel, characterized by the following features.

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