Sheet holder, roof structure, and method for constructing a roof structure

Abstract

To hold a sheet that is provided under a roof material.SOLUTION: A sheet holder 100 includes a lower member 10 that supports adjacent sheets 5 from below, and an upper member 20 that overlaps the lower member 10 with the adjacent sheets 5 interposed therebetween. The lower member 10 includes a placing portion 11 on which the adjacent sheets 5 are placed, and a protruding portion 12 provided on the placing portion 11 so as to protrude upward from between the adjacent sheets 5. The upper member 20 is formed in a shape capable of receiving the protruding portion 12. In a state in which the upper member 20 receives the protruding portion 12, the protruding portion 12 presses the adjacent sheets 5 against the placing portion 11 via the upper member 20.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a sheet holder, a roof structure, and a method for constructing a roof structure.

Background Art

[0002] In the roof structure of a building, a heat insulating material or a heat shielding material may be provided below the roofing material. Patent Document 1 discloses a roof structure in which a plurality of board-shaped heat insulating materials are uniformly laid below a folded plate roofing material.

[0003] In the roof structure disclosed in Patent Document 1, a tight frame that supports the folded plate roofing material is fixed on a beam. The tight frame has a flange portion protruding in a direction orthogonal to the longitudinal direction of the beam. A joiner that connects two tight frames fixed on adjacent beams is hooked on the flange portion and attached, and the end of the board-shaped heat insulating material is placed on the joiner.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In recent years, instead of a board formed of a fiber-based heat insulating material or a foamed plastic-based heat insulating material, it has been proposed to uniformly provide a sheet having a high reflectance to radiant heat below the roofing material. Such a sheet is thinner and lighter than a board formed of a fiber-based heat insulating material or a foamed heat insulating material. Therefore, when constructing the roof structure, if the sheet is only placed on the joiner, there is a risk that the sheet may float or fly due to wind or the like.

[0006] An object of the present invention is to hold a sheet provided below a roofing material. [Means for solving the problem]

[0007] The present invention relates to a sheet holder for holding sheets adjacent to each other laterally below a roofing material, comprising a lower member that supports adjacent sheets from below, and an upper member that overlaps the lower member with the adjacent sheets sandwiched in between, wherein the lower member has a mounting portion on which the adjacent sheets are placed, and a projection that protrudes upward from between the adjacent sheets and is provided on the mounting portion. The protruding portion has a first extension portion extending upward from the mounting portion, and a second extension portion bent back from the first extension portion so as to be hooked onto a support structure that supports the roofing material. The upper member is formed in a shape that can receive the protrusion, and in the state in which the upper member receives the protrusion, Second extension This presses adjacent sheets against the mounting surface via the upper member.

[0008] Furthermore, the present invention relates to a roof structure and comprises a plurality of sheet units arranged horizontally below the roofing material, each of the plurality of sheet units comprising a sheet, a lower member that supports the sheet from below, and an upper member fixed to the sheet, the lower member having a mounting portion on which the sheet is placed, and a projection that protrudes upward and is provided on the mounting portion, The protruding portion has a first extension portion extending upward from the mounting portion, and a second extension portion bent back from the first extension portion so as to be hooked onto a support structure that supports the roofing material. Multiple seat units are arranged side by side in a horizontal direction. Furthermore, the support structure is inserted between the first extended portion and the second extended portion, and the protruding portion is hooked onto the support structure. In this state, the seat of one of the adjacent seat units is placed on the mounting portion of the lower member of the other seat unit, the protruding portion of the lower member of the other seat unit protrudes upward from between the seats of the adjacent seat unit, the upper member of one seat unit is superimposed on the lower member of the other seat unit and receives the protruding portion of the lower member of the other seat unit, and the protruding portion of the lower member of the other seat unit Second extension This presses the sheet of an adjacent sheet unit against the mounting portion of the lower member of the other sheet unit via the upper member of the first sheet unit.

[0009] Furthermore, the present invention relates to a method for constructing a roof structure comprising a plurality of sheets arranged horizontally below a roofing material, comprising an assembly step of assembling a plurality of sheet units comprising a sheet, a lower member that supports the sheet from below, and an upper member fixed to the sheet, and an arrangement step of overlapping the upper member of one sheet unit with the lower member of another sheet unit to arrange one sheet unit next to another sheet unit, wherein the lower member of another sheet unit has a mounting portion on which the sheet is placed and a projection that protrudes upward and is provided on the mounting portion, and the upper member of one sheet unit receives the projection The sheet is formed in a shape that allows for this arrangement. In the arrangement process, a sheet from one sheet unit is placed on the mounting portion of the lower member of another sheet unit, a protruding portion of the lower member of the other sheet unit is made to protrude upward from between the sheet of the other sheet unit and the sheet of the first sheet unit, the protruding portion of the lower member of the other sheet unit is inserted into the upper member of the first sheet unit, and the protruding portion of the lower member of the other sheet unit is used to press the sheet from the adjacent sheet unit onto the mounting portion of the lower member of the other sheet unit via the upper member of the first sheet unit. Furthermore, the present invention relates to a method for constructing a roof structure comprising a first sheet and a second sheet adjacent to each other laterally below the roofing material, using a sheet holder, wherein the sheet holder comprises a lower member that supports the first sheet and the second sheet from below, and an upper member that is superimposed on the lower member, wherein the lower member has a mounting portion on which the first sheet and the second sheet are placed, and a projection provided on the mounting portion that protrudes upward from between the first sheet and the second sheet, wherein the projection has a first extending portion that extends upward from the mounting portion, and a second extending portion that is bent back from the first extending portion The upper member is formed in a shape that can receive the protrusion, and the method for constructing the roof structure is to insert a support structure that supports the roofing material between the first extended part and the second extended part, hook the lower member onto the support structure, place the first sheet and the second sheet adjacent to each other with the protrusion in between on the mounting part of the lower member hooked onto the support structure, overlap the upper member on the lower member with the first sheet and the second sheet placed on the mounting part in between, insert the protrusion into the upper member, and press the first sheet and the second sheet onto the mounting part via the upper member using the second extended part. [Effects of the Invention]

[0010] According to the present invention, a sheet installed below the roofing material can be held in place. [Brief explanation of the drawing]

[0011] [Figure 1] This is a partial cross-sectional perspective view of a roof structure according to an embodiment of the present invention. [Figure 2] (a) is a side cross-sectional view of the roof structure shown in Figure 1, viewed in the direction of the beam span, and (b) is a side cross-sectional view of the roof structure with the upper member of the sheet holder separated from the lower member, corresponding to Figure 2(a). [Figure 3] This is an enlarged cross-sectional view along the line III-III shown in Figure 2(a). [Figure 4](a) and (b) are diagrams for explaining a method of constructing a roof structure according to the present embodiment. [Figure 5] It is an enlarged view of the V portion shown in FIG. 4(a). [Figure 6] It is an enlarged view of the VI portion shown in FIG. 4(a). [Figure 7] (a) and (b) are diagrams for explaining a method of constructing a roof structure according to a modification in an embodiment of the present invention.

Embodiment for Carrying out the Invention

[0012] Hereinafter, a sheet holder 100, a roof structure 1, and a method of constructing the roof structure 1 according to an embodiment of the present invention will be described with reference to the drawings. The roof structure 1 is applied to buildings such as factories, warehouses, and gymnasiums, for example.

[0013] FIG. 1 is a partial cross-sectional perspective view of the roof structure 1. As shown in FIG. 1, the roof structure 1 includes a plurality of beams 2 extending in the direction between the beams of the building, a plurality of tight frames 3 provided so as to project upward from the beams 2, and a roof material 4 spanned over the plurality of tight frames 3. The roof material 4 is located at the uppermost part of the building and covers the upper part of the internal space of the building. In FIG. 1, an example where the roof material 4 is a folded plate is shown, but the roof material 4 is not limited to the folded plate.

[0014] The beams 2 are arranged at intervals in the bay direction of the building and are supported by columns (not shown). A bay (not shown) is spanned between adjacent beams 2. In FIG. 1, an example where the beam 2 is an H-shaped steel is shown, but the beam 2 is not limited to the H-shaped steel and may be, for example, a wooden beam.

[0015] The tight frames 3 are provided on each beam 2 at intervals in the direction between the beams. The tight frames 3 may be fixed to the beams 2 by welding or may be fixed to the beams 2 by bolting.

[0016] The roof structure 1 further includes a plurality of sheets 5 disposed below the roofing material 4. The sheets 5 are arranged in the direction between the beams and in the direction of the purlin rows after the tight frame 3 is fixed to the beam 2 and before the roofing material 4 is fixed to the tight frame 3, covering the space between adjacent beams 2.

[0017] The sheet 5 is a material in which a plurality of polyethylene sheets and a plurality of bubble polyethylene sheets are alternately stacked and further sandwiched with aluminum foil. The aluminum foil has a heat insulation effect of reflecting radiant heat, and the bubble polyethylene sheet has a heat insulation effect of suppressing heat conduction. That is, the sheet 5 has both the heat insulation effect by the aluminum foil and the heat insulation effect by the bubble polyethylene sheet. As such a sheet 5, for example, "Reflectix" (registered trademark) manufactured by Reflectix Ink Co., Ltd. of the United States can be used.

[0018] The reflectivity of the aluminum foil with respect to radiant heat is higher than that of the fiber-based heat insulation material and the foamed plastic-based heat insulation material. Therefore, by disposing the sheet 5 having aluminum foil, such as Reflectix, below the roofing material 4, heat transfer between the outside and the inside of the building can be reduced, and temperature fluctuations inside the building can be reduced. Thereby, the comfort in the building can be improved.

[0019] On the other hand, the thickness of the sheet 5 such as Reflectix is 10 mm or less (more specifically, about 8 mm), and it is thinner and lighter compared to the board made of the fiber-based heat insulation material and the foamed plastic-based heat insulation material. Therefore, if the sheet 5 is simply placed on a member spanning over the tight frames 3 adjacent in the purlin row direction, there is a risk that the sheet 5 may float or fly due to wind or the like.

[0020] The sheet holder 100 according to the present embodiment is used to hold the sheet 5. Hereinafter, the sheet holder 100 will be described in detail with reference to FIGS. 2 to 6.

[0021] Figure 2(a) is a side cross-sectional view of the roof structure 1 in the direction of the beams. Figure 3 is an enlarged cross-sectional view along the line III-III shown in Figure 2(a). Note that the roofing material 4 is not shown in Figure 2(a).

[0022] As shown in Figures 2(a) and 3, the tight frame 3 has a wing portion 3a that protrudes in the longitudinal direction. The sheet holder 100 is attached by hooking it onto the wing portions 3a of adjacent tight frames 3 in the longitudinal direction. In the following, "up" and "down" refer to the vertically upward and vertically downward directions when the sheet holder 100 is attached to the wing portions 3a of the tight frame 3.

[0023] The sheet holder 100 comprises a lower member 10 that supports adjacent sheets 5 in the beam direction from below, and an upper member 20 that is placed on top of the lower member 10 with adjacent sheets 5 in between. Figure 2(b) is a side cross-sectional view of the roof structure 1 with the upper member 20 separated from the lower member 10, corresponding to Figure 2(a). In Figure 2(b), as in Figure 2(a), the roofing material 4 is not shown.

[0024] As shown in Figure 3, the lower member 10 has a mounting portion 11 on which adjacent sheets 5 are placed, and a projection 12 that protrudes upward from between adjacent sheets 5 and is provided on the mounting portion 11. The lower member 10 is formed by bending a single strip-shaped metal plate.

[0025] The mounting section 11 includes a first mounting section 11a on which one of two adjacent sheets 5 is mounted, and a second mounting section 11b on which the other of two adjacent sheets 5 is mounted.

[0026] In the following, of the two sheets 5 shown in Figure 3, the sheet 5 on the left side of the paper will also be referred to as "left sheet 5a," and the sheet 5 on the right side of the paper will also be referred to as "right sheet 5b." Furthermore, the first mounting section 11a will also be referred to as "left mounting section 11a," and the second mounting section 11b will also be referred to as "right mounting section 11b."

[0027] The left mounting portion 11a is formed by overlapping the right mounting portion 11b below it and extending to the left from the right mounting portion 11b, by bending the right end of the right mounting portion 11b.

[0028] The protruding portion 12 includes a first extending portion 12a that is bent upward at the left end of the right-side mounting portion 11b and extends upward, and a second extending portion 12b that is bent downward at the upper end of the first extending portion 12a. By inserting the wing portion 3a of the tight frame 3 between the first extending portion 12a and the second extending portion 12b, the protruding portion 12 is hooked onto the tight frame 3. In other words, the second extending portion 12b is bent back from the first extending portion 12a so that it can be hooked onto the wing portion 3a of the tight frame 3.

[0029] The second extension portion 12b is bent at two different points in the vertical direction at an angle of approximately 10° to 50°. The portion between the upper end 12c of the second extension portion 12b and the upper bent portion 12d is inclined with respect to the first extension portion 12a so as it extends downwards, it moves away from the first extension portion 12a. The portion between the upper bent portion 12d and the lower bent portion 12e is inclined with respect to the first extension portion 12a so as it extends downwards, it moves closer to the first extension portion 12a. The portion between the lower bent portion 12e and the lower end 12f is inclined with respect to the first extension portion 12a so as it extends downwards, it moves away from the first extension portion 12a.

[0030] Because the portion between the lower bent portion 12e and the lower end 12f is inclined as described above, the wing portion 3a of the tight frame 3 can be easily inserted from below between the first extended portion 12a and the second extended portion 12b. Also, because the portion between the upper end 12c and the upper bent portion 12d is inclined as described above, when the protruding portion 12 is hooked onto the wing portion 3a, the movement of the protruding portion 12 in the direction of the beam can be restricted by the wing portion 3a.

[0031] The upper member 20 is formed in a shape that can receive the protrusion 12 of the lower member 10. Specifically, the upper member 20 has a receiving portion 21 with a substantially inverted V-shaped cross-section that receives the protrusion 12 from below, a first overhang portion 22a that extends outward from one lower end of the receiving portion 21, and a second overhang portion 22b that extends outward from the other lower end of the receiving portion 21. The upper member 20 is formed by bending a single strip-shaped metal plate, similar to the lower member 10.

[0032] In the following, similar to the lower member 10, of the two lower ends of the receiving portion 21 shown in Figure 3, the lower end on the left side of the page will be referred to as the "left lower end," and the lower end on the right side of the page will be referred to as the "right lower end." Also, the first eaves portion 22a will be referred to as the "left eaves portion 22a," and the second eaves portion 22b will be referred to as the "right eaves portion 22b."

[0033] The receiving portion 21 has a first side wall portion 21a and a second side wall portion 21b, which are arranged to receive the second extended portion 12b of the protruding portion 12 between them. The upper member 20 is superimposed on the lower member 10 such that the first side wall portion 21a is located on the opposite side of the second extended portion 12b from the first extended portion 12a of the protruding portion 12. The first side wall portion 21a extends in a substantially straight line between the top portion 21e of the receiving portion 21 and the left side overhang portion 22a.

[0034] Furthermore, the receiving portion 21 has a constricted portion 21c that protrudes from the second side wall portion 21b toward the first side wall portion 21a and forms a constriction, and a third side wall portion 21d that is provided between the constricted portion 21c and the right side overhang portion 22b. When the upper member 20 is superimposed on the lower member 10, the constricted portion 21c is located below the second extended portion 12b of the protruding portion 12. In other words, the second extended portion 12b is located only between the first side wall portion 21a and the second side wall portion 21b, and not between the first side wall portion 21a and the third side wall portion 21d.

[0035] The second extension 12b of the protruding portion 12 is formed to bias the constricted portion 21c downward when the upper member 20 is superimposed on the lower member 10 with the left sheet 5a and the right sheet 5b sandwiched between them. As a result, the left overhang portion 22a of the upper member 20 is pressed against the left sheet 5a, and the right overhang portion 22b of the upper member 20 is pressed against the right sheet 5b. Consequently, the left sheet 5a is pressed against the left mounting portion 11a of the lower member 10, and the right sheet 5b is pressed against the right mounting portion 11b of the lower member 10.

[0036] In this manner, with the receiving portion 21 of the upper member 20 receiving the protruding portion 12 of the lower member 10, the protruding portion 12 presses the left sheet 5a and the right sheet 5b against the left mounting portion 11a and the right mounting portion 11b of the lower member 10, respectively, via the upper member 20. As a result, the left sheet 5a and the right sheet 5b are held between the lower member 10 and the upper member 20. Therefore, the left sheet 5a and the right sheet 5b can be easily held, and it is possible to prevent the left sheet 5a and the right sheet 5b from floating or flying away due to wind or the like.

[0037] The protruding portion 12 has a second extending portion 12b that is bent back from the first extending portion 12a so as to be hookable onto the wing portion 3a of the tight frame 3, and the second extending portion 12b presses the left sheet 5a and the right sheet 5b against the mounting portion 11 of the lower member 10 via the upper member 20. Therefore, the second extending portion 12b has the function of being hookable onto the wing portion 3a and the function of pressing the left sheet 5a and the right sheet 5b against the mounting portion 11 of the lower member 10. Thus, the shape of the lower member 10 can be simplified while easily holding the left sheet 5a and the right sheet 5b.

[0038] The third side wall portion 21d is inclined with respect to the first side wall portion 21a so that it moves away from the first side wall portion 21a as it extends downward. Therefore, the protruding portion 12 of the lower member 10 can be easily inserted into the receiving portion 21 from below.

[0039] When the upper member 20 is placed on top of the lower member 10, the upper member 20 is lowered from above the lower member 10, and the upper end 12c of the protrusion 12 is inserted between the first side wall 21a and the third side wall 21d of the receiving portion 21. When the upper member 20 is lowered from this state, the second extension 12b of the protrusion 12 comes into contact with the third side wall 21d of the receiving portion 21, and the third side wall 21d, the constricted portion 21c, and the second side wall 21b are pushed outward (to the right in Figure 3). When the upper member 20 is lowered further and the constricted portion 21c passes the second extension 12b, the receiving portion 21 returns to its original shape, and the constricted portion 21c moves below the second extension 12b. As a result, the constricted portion 21c is biased downward by the second extension 12b.

[0040] The constricted portion 21c of the upper member 20 closes the space between the first extended portion 12a and the second extended portion 12b of the protruding portion 12 below the wing portion 3a of the tight frame 3 when the upper member 20 is superimposed on the lower member 10. Therefore, when the upper member 20 is superimposed on the lower member 10, the wing portion 3a cannot slip out from between the first extended portion 12a and the second extended portion 12b. Thus, even if the left sheet 5a and the right sheet 5b are subjected to wind or the like, the lower member 10 can be prevented from detaching from the wing portion 3a.

[0041] Furthermore, the constricted portion 21c of the upper member 20 does not need to be in contact with the first extended portion 12a of the protruding portion 12 when the upper member 20 is superimposed on the lower member 10. For example, a gap sufficient to prevent the wing portion 3a of the tight frame 3 from slipping out may be formed between the first extended portion 12a and the constricted portion 21c.

[0042] Next, the construction method of the roof structure 1 will be explained with reference to Figures 4 to 6. Figures 4(a) and (b) are diagrams illustrating the construction method. In the construction method according to this embodiment, a plurality of sheet units 50 shown in Figure 4 are used. Figure 5 is an enlarged view of section V shown in Figure 4(a), and Figure 6 is an enlarged view of section VI shown in Figure 4(a).

[0043] As shown in Figure 4, the sheet unit 50 comprises a sheet 5, a lower member 10 of one sheet holder 100, and an upper member 20 of another sheet holder 100. As shown in Figure 5, the lower member 10 is positioned near the left edge of the sheet 5, and the vicinity of the left edge of the sheet 5 is placed on the right mounting portion 11b of the lower member 10. The sheet 5 and the lower member 10 may be fixed or bonded to each other, for example, using double-sided tape.

[0044] As shown in Figure 6, the upper member 20 is positioned near the right edge of the sheet 5 and is fixed to the left visor portion 22a of the upper member 20. For example, double-sided tape can be used to fix the sheet 5 and the left visor portion 22a.

[0045] In the construction method according to this embodiment, the roof structure 1 is constructed by arranging a plurality of sheet units 50 in order in the direction of the beams. The following describes the procedure for placing a new sheet unit 50 next to a sheet unit 50 that has already been placed. In Figure 4(a), the sheet unit 50 shown on the right side of the page is a sheet unit 50 that has already been placed, with its lower member 10 hooked onto the wing portion 3a of the tight frame 3 (see Figure 2, etc.), and is also referred to as the "right sheet unit 51". The sheet unit 50 shown on the left side of the page is a sheet unit 50 that is newly placed, and is also referred to as the "left sheet unit 52".

[0046] First, as shown in Figure 4(a), the left seat unit 52 is moved so that the upper member 20 of the left seat unit 52 is above the lower member 10 of the right seat unit 51. Next, the left seat unit 52 is lowered. As a result, the protruding portion 12 of the lower member 10 of the right seat unit 51 is inserted into the receiving portion 21 of the upper member 20 of the left seat unit 52, and the upper member 20 of the left seat unit 52 is superimposed on the lower member 10 of the right seat unit 51. In addition, the protruding portion 12 of the lower member 10 of the left seat unit 52 is hooked onto the wing portion 3a of the tight frame 3.

[0047] As shown in Figure 4(b), when the left seat unit 52 is lowered until the constricted portion 21c of the upper member 20 of the left seat unit 52 exceeds the second extended portion 12b of the lower member 10 of the right seat unit 51, the seat 5 of the left seat unit 52 is placed on the mounting portion 11 of the lower member 10 of the right seat unit 51. Also, the protruding portion 12 of the lower member 10 of the right seat unit 51 protrudes upward from between the seat 5 of the right seat unit 51 and the seat 5 of the left seat unit 52. The protruding portion 12 of the lower member 10 of the right seat unit 51 presses the seat 5 of the right seat unit 51 and the seat 5 of the left seat unit 52 against the mounting portion 11 of the lower member 10 of the right seat unit 51 via the upper member 20 of the left seat unit 52. As a result, the seat 5 in the right seat unit 51 and the seat 5 in the left seat unit 52 are sandwiched between the lower member 10 of the right seat unit 51 and the upper member 20 of the left seat unit 52.

[0048] The seat 5 in the left seat unit 52 is pressed against the mounting portion 11 of the lower member 10 in the left seat unit 52 by overlapping the upper member 20 of another seat unit 53 with the lower member 10 of the left seat unit 52.

[0049] Thus, according to this embodiment, adjacent sheets 5 are sequentially sandwiched between the lower member 10 and the upper member 20. Therefore, even if the fixing force (adhesive force) between the sheet 5 and the lower member 10, and the fixing force (adhesive force) between the sheet 5 and the upper member 20 are weak, it is possible to prevent the sheets 5 from floating or flying away due to wind or the like.

[0050] Furthermore, when the sheet unit 50 is in place, the worker will be holding the sheet 5, the lower member 10, and the upper member 20, so the sheet 5 will not be blown away by wind or other factors.

[0051] Although embodiments of the present invention have been described above, these embodiments only represent a part of the application examples of the present invention, and are not intended to limit the technical scope of the present invention to the specific configurations of the above embodiments.

[0052] Figure 7 is a diagram illustrating a method for constructing the roof structure 1 according to a modified example. In the above embodiment, as shown in Figure 4, the roof structure 1 is constructed by assembling the seal units 50 and arranging them in order. In the modified example, the roof structure 1 is constructed without assembling the seal units 50.

[0053] As shown in Figure 7(a), two sheets 5 are placed on the lower member 10, which is hooked onto the wing portion 3a of the tight frame 3. At this time, the protruding portion 12 of the lower member 10 is made to protrude from between the adjacent sheets 5. Next, the upper member 20 is lowered from above the lower member 10. As a result, the protruding portion 12 of the lower member 10 is inserted into the receiving portion 21 of the upper member 20, and the upper member 20 is placed on top of the lower member 10.

[0054] As shown in Figure 7(b), when the upper member 20 is lowered until the constricted portion 21c of the upper member 20 exceeds the second extended portion 12b of the lower member 10, the protruding portion 12 of the lower member 10 presses the adjacent sheets 5 against the mounting portion 11 of the lower member 10 via the upper member 20. As a result, the adjacent sheets 5 are sandwiched between the lower member 10 and the upper member 20.

[0055] Thus, even in this modified configuration, simply by overlapping the upper member 20 with the lower member 10, adjacent sheets 5 are sandwiched between the lower member 10 and the upper member 20. Therefore, adjacent sheets 5 can be easily held in place, preventing them from floating or flying away due to wind or other factors.

[0056] In the above embodiments and modifications, a sheet holder 100 was described for holding sheets 5 adjacent to each other in the beam direction. However, the sheet holder 100 may also hold sheets 5 adjacent to each other in the girder direction. In other words, the present invention is applicable to holding sheets 5 adjacent to each other in the lateral direction below the roofing material 4.

[0057] Furthermore, although the above embodiments and modifications describe a case where sheet 5 is a heat-shielding sheet such as Reflectix, sheet 5 is not limited to a heat-shielding sheet, and may be, for example, an insulating sheet.

[0058] In the above embodiments and modifications, the case in which the protruding portion 12 of the lower member 10 is hooked onto the wing portion 3a of the tight frame 3 was described, but the protruding portion 12 may be hooked onto, for example, the beam 2. In other words, the second extending portion 12b only needs to be bent back from the first extending portion 12a so that it can be hooked onto the support structure that supports the roofing material 4. [Explanation of Symbols]

[0059] 100...Holder 1. Roof structure 3a...Flap section (support structure) 4. Roofing materials 5 seats 10...lower member 11. Mounting section 12...Protrusion 12a...First extension part 12b...Second extension part 20. Upper component 50...Seat unit

Claims

1. A sheet holder that holds sheets adjacent to each other in the lateral direction below the roofing material, A lower member that supports the adjacent sheets from below, It comprises an upper member which is superimposed on the lower member with the adjacent sheets sandwiched in between, The aforementioned lower member is, The mounting section on which the adjacent sheets are placed, It has a projection that protrudes upward from between the adjacent sheets and is provided on the mounting portion described above, The aforementioned protrusion is A first extending portion extending upward from the mounting portion, It has a second extended portion that is bent back from the first extended portion so as to be hooked onto a support structure that supports the roofing material, The upper member is formed in a shape that can receive the protrusion, In the state in which the upper member receives the protrusion, the second extension of the protrusion presses the adjacent sheets to the aforementioned mounting portion via the upper member. Seat holder.

2. The upper member closes the space between the first extended portion and the second extended portion below the support structure. The sheet holder according to claim 1.

3. It comprises multiple sheet units arranged horizontally below the roofing material, Each of the aforementioned plurality of seat units is The seat and A lower member that supports the aforementioned sheet from below, The sheet comprises an upper member fixed to the sheet, The aforementioned lower member is, A mounting section on which the aforementioned sheet is placed, It has a projection that protrudes upward and is provided on the mounting part described above, The aforementioned protrusion is A first extending portion extending upward from the mounting portion, It has a second extended portion that is bent back from the first extended portion so as to be hooked onto a support structure that supports the roofing material, In a state in which a plurality of the sheet units are arranged side by side in the lateral direction and the support structure is inserted between the first extended portion and the second extended portion and the protruding portion is hooked onto the support structure, the sheet of one of the adjacent sheet units is placed on the aforementioned mounting portion of the lower member of the other sheet unit, the protruding portion of the lower member of the other sheet unit protrudes upward from between the sheets of the adjacent sheet unit, the upper member of one sheet unit is superimposed on the lower member of the other sheet unit and receives the protruding portion of the lower member of the other sheet unit, and the second extended portion of the protruding portion of the lower member of the other sheet unit presses the sheet of the adjacent sheet unit against the aforementioned mounting portion of the lower member of the other sheet unit via the upper member of the one sheet unit. Roof structure.

4. A method for constructing a roof structure comprising multiple sheets arranged horizontally below the roofing material, An assembly process for assembling multiple seat units, each comprising the aforementioned seat, a lower member supporting the seat from below, and an upper member fixed to the seat; The arrangement step includes placing the upper member of one seat unit on top of the lower member of another seat unit, thereby arranging the first seat unit alongside the other seat unit. The lower member in the aforementioned other seat unit has a mounting portion on which the seat is placed, and a projection that protrudes upward and is provided on the mounting portion, The upper member in the first seat unit is formed in a shape that can receive the protruding portion, In the aforementioned arrangement step, The sheet in the first sheet unit is placed on the previously described mounting portion of the lower member in the other sheet unit. The protruding portion of the lower member in the other seat unit is made to protrude upward from between the seat in the other seat unit and the seat in the first seat unit. The protruding portion of the lower member of the other seat unit is inserted into the upper member of the first seat unit. Using the protruding portion of the lower member in the other seat unit, the sheet in the adjacent seat unit is pressed against the previously described mounting portion of the lower member in the other seat unit via the upper member in the first seat unit. Methods for constructing roof structures.

5. A method for constructing a roof structure comprising a first sheet and a second sheet adjacent to each other in the lateral direction below the roofing material, using a sheet holder, The aforementioned sheet holder is A lower member that supports the first sheet and the second sheet from below, It comprises an upper member that is superimposed on the lower member, The aforementioned lower member is, A mounting section on which the first sheet and the second sheet are placed, The mounting portion is provided and has a protruding portion that projects upward from between the first sheet and the second sheet, The aforementioned protrusion is A first extending portion extending upward from the mounting portion, It has a second extending portion that is bent back from the first extending portion, The upper member is formed in a shape that can receive the protrusion, The method for constructing the aforementioned roof structure is: The support structure for supporting the roofing material is inserted between the first extended portion and the second extended portion, and the lower member is hooked onto the support structure. The first sheet and the second sheet are placed on the aforementioned mounting portion of the lower member hooked onto the support structure, with the protruding portion in between them, adjacent to each other. The upper member is placed on the lower member with the first sheet and the second sheet placed on the mounting portion sandwiched between them, the protruding portion is inserted into the upper member, and the first sheet and the second sheet are pressed onto the mounting portion via the upper member using the second extending portion. Methods for constructing roof structures.

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