Roof structure and roof construction method

Abstract

To provide a roof structure using roof panels that can ensure construction accuracy at construction sites and are easy to manufacture, and a roof construction method.SOLUTION: A roof structure 100 comprises: roof panels 2,4 having panel side rack members 3,5; a frame side rack member 1 supporting them; a leg portion 61 fixed to an upper surface portion of the frame side rack member 1; and a connector 6 having a support portion 62 extending upwardly from the leg portion 61. First through-holes 66 and second through-holes 67 are formed on the support portion 62. The roof panels 2,4 are placed on the frame side rack member 1, in a state in which the support portion 62 are sandwiched between the panel side rack members 3,5. The panel side rack members 3,5 are positioned with drift pins 71 pierced into the panel side rack members 3,5 and inserted through the first through-holes 66, and are fastened with bolts 72 pierced into the panel side abutment 3,5 and inserted through the second through-holes 67.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a roof structure and a roof construction method. [Background technology]

[0002] Patent Document 1 describes a roof construction method and a roof structure. In this roof construction method, a first rafter panel is used, which has a plurality of horizontal members arranged substantially parallel to each other and a plurality of rafters that are spanned substantially perpendicularly to the plurality of horizontal members and are then dropped in with the top ends aligned. This roof construction method includes the steps of drilling mortise holes in advance on the underside of the horizontal members of the first rafter panel, protruding column base metal fittings (tenon pipes) in advance on the upper surfaces of the eaves beam, purlin and ridge beam of the roof structure, aligning the mortise holes of the first rafter panel with the column base metal fittings of the roof structure, and inserting and fitting the column base metal fittings of the roof structure into the mortise holes of the first rafter panel, thereby joining the first rafter panel to the roof structure. In addition, in this roof structure and roof construction method, the horizontal members at the panel joints where two rafter panels are joined in a butted state are split rafters. At the panel joint, one side of the purlin is made half the width of a normal cross member. That is, after drilling a mortise hole for a pipe into one cross member, it is split in the height direction of the mortise hole so that the mortise and cross member are halved, and each half is used as a purlin for the cross member on the panel joint side of the two rafter panels that are butted together. In other words, what was originally a single sheet of material is split into two pieces, and each half is used as a purlin. Furthermore, the column base metal is sandwiched between the purlins of the two rafter panels from both sides and fixed with drift pins to integrate the purlins. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2019-60165 A Summary of the Invention [Problem to be solved by the invention]

[0004] In conventional roof structures and roof construction methods, in order to match the tenon pipe protruding from the top surface of the ridgepole with the mortise hole of the horizontal member of the rafter panel (panel joint), it was necessary to form a mortise hole for the tenon pipe in a horizontal member of a single square timber or plate material, and then cut the horizontal member precisely at the position where the mortise hole is divided into two to make a split purlin. However, in order to realize such a construction method using split purlins while maintaining construction accuracy at the construction site, a highly accurate cutting process is required, and it is difficult to automate cutting using a pre-cut processing machine. Therefore, such cutting has to be done manually by a skilled worker, which is inefficient. Therefore, a roof structure using roof panels that are easy to manufacture while maintaining construction accuracy at the construction site is desired.

[0005] The present invention has been made in consideration of the above-mentioned circumstances, and its object is to provide a roof structure and a roof construction method that use roof panels that can ensure construction accuracy at a building site and are easy to manufacture. [Means for solving the problem]

[0006] In order to achieve the above object, the roof structure according to the present invention comprises: A pair of roof panels each having a rafter supporting a roof base and a panel side cross member intersecting the rafter and supporting one end side of the rafter; A body-side cross member supporting the pair of roof panels; A connector having a leg portion fixed to an upper surface of the frame-side cross member and a support portion extending upward from the leg portion; Equipped with The support portion has a first through hole penetrating the support portion and a second through hole extending along an extension direction of the first through hole, The pair of roof panels are placed on the body-side cross member with the panel-side cross members facing each other at a panel joint portion where the roof panels are joined in a butted state, and the pair of panel-side cross members are placed on the body-side cross member with the support portion sandwiched between them; The pair of panel side cross members are The panel is positioned by a positioning pin that is inserted from one of the panel-side cross members to the other panel-side cross member and is inserted into the first through hole, The panel is fastened to the other panel side cross member by a fastener inserted through the second through hole and piercing the first panel side cross member.

[0007] The roof structure according to the present invention further comprises: The diameter of the second through hole may be equal to the diameter of the first through hole.

[0008] The roof structure according to the present invention further comprises: The leg portion has a leg through hole formed therein along an extension direction of the first through hole, The connector may be fixed with a drift pin that is inserted into the side of the body-side cross member and through the leg through hole, with the leg inserted into the top surface of the body-side cross member and embedded therein.

[0009] The roof structure according to the present invention further comprises: The leg through hole may have a diameter equal to a diameter of the first through hole.

[0010] In order to achieve the above object, the roof construction method according to the present invention comprises the steps of: A pair of roof panels each having a rafter supporting a roof base and a panel side cross member intersecting the rafter and supporting one end side of the rafter, A body-side cross member supporting the pair of roof panels; A roof construction method for butt-joining the roof panels together using a connector having a leg portion and a support portion extending upward from the leg portion, comprising: a support portion forming step of forming a first through hole penetrating the support portion and a second through hole along an extension direction of the first through hole in the support portion; a connector attachment step of fixing the leg portion to an upper surface portion of the frame-side cross member to fix the connector to the frame-side cross member; A panel mounting process in which the pair of roof panels are placed on the body-side horizontal member with the panel-side horizontal members facing each other and the support portion sandwiched between the pair of panel-side horizontal members; A positioning step of inserting a positioning pin through the first through hole from one of the panel side cross members to the other panel side cross member; and a panel fastening process for fastening the pair of roof panels with a fastener that is inserted through the second through hole and penetrates from one of the panel side cross members to the other panel side cross member.

[0011] The roof construction method according to the present invention further comprises: In the support portion forming step, a diameter of the second through hole may be equal to a diameter of the first through hole.

[0012] The roof construction method according to the present invention further comprises: The method further includes a leg forming step of forming a leg through hole in the leg portion along the extension direction of the first through hole, The connector installation process may include inserting the leg into the top surface of the body-side cross member so as to embed the leg, and then inserting a drift pin through the leg through-hole and into the side of the body-side cross member.

[0013] The roof construction method according to the present invention further comprises: In the leg forming step, a hole diameter of the leg through hole may be equal to a hole diameter of the first through hole.

[0014] The roof construction method according to the present invention further comprises: The positioning step may involve forming mortise holes in both panel side cross members in advance, the mortise holes having a diameter equal to the diameter of the first through hole, so that the positioning pin can be inserted therethrough, and then inserting the positioning pin into the mortise holes.

[0015] The roof construction method according to the present invention further comprises: The connector mounting step includes arranging the connectors at two different positions in the extension direction of the frame-side cross member, The positioning step may include inserting the positioning pin into the first through hole of each of the connectors. Effect of the Invention

[0016] It is possible to provide a roof structure and a roof construction method using roof panels that can ensure construction accuracy at a construction site and are easy to manufacture. [Brief description of the drawings]

[0017] [Figure 1] 1 is a perspective view showing the configuration of a building that employs a roof structure according to this embodiment. [Diagram 2] FIG. [Diagram 3] This is an oblique view of the vicinity of the cross member on the main body side, viewed diagonally from above. [Figure 4] FIG. 2 is a perspective view illustrating a pair of roof panels joined together in a butt-to-button state. [Diagram 5] FIG. 2 is a top view of the panel-side cross members and the support parts sandwiched between them. [Figure 6] 6 is a cross-sectional view taken along the line VI-VI in FIG. 5. [Figure 7] FIG. 2 is a perspective view showing the structure of a roof panel. [Figure 8] 1 is an oblique view of the panel-side second cross member and the vicinity of the eaves beam, showing how the roof panel is supported by the eaves beam. FIG. [Figure 9] 13A to 13C are diagrams illustrating the construction procedure for positioning and fixing a roof panel when two connectors are used. [Figure 10]13A to 13C are diagrams illustrating the construction procedure for positioning and fixing a roof panel when two connectors are used. [Figure 11] 13A to 13C are diagrams illustrating the construction procedure for positioning and fixing a roof panel when two connectors are used. [Figure 12] 13A to 13C are diagrams illustrating the construction procedure for positioning and fixing a roof panel when two connectors are used. [Figure 13] 13A and 13B are diagrams illustrating the positioning and fixing of the roof panel. [Figure 14] 13A and 13B are diagrams illustrating the positioning and fixing of the roof panel. [Figure 15] 13A and 13B are diagrams illustrating the positioning and fixing of the roof panel. [Figure 16] FIG. 13 is a perspective view showing the configuration of another connector. [Figure 17] 13A and 13B are diagrams illustrating a fixing method using another connector. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] A roof structure and a roof construction method according to an embodiment of the present invention will be described with reference to the drawings.

[0019] (Brief explanation) Fig. 1 shows a perspective view for explaining the configuration of a building 200 that employs a roof structural body 100 according to this embodiment. As shown in Fig. 1, the roof structural body 100 according to this embodiment is a part of the roof of the building 200.

[0020] The roof structure 100 comprises a pair of a first roof panel 2 and a second roof panel 4 (hereinafter, the first roof panel 2 and the second roof panel 4 may be collectively referred to as roof panels 2, 4), a body-side cross member 1 supporting these roof panels 2, 4, and a connector 6 fixed to the upper surface of the body-side cross member 1.

[0021] The first roof panel 2 has a rafter 20 that supports the roof base 25, and a panel-side cross member 3 that intersects with the rafter 20 and supports one end of the rafter 20.

[0022] The second roof panel 4 has a rafter 40 that supports the roof base 45, and a panel side cross member 5 that intersects with the rafter 40 and supports one end of the rafter 40.

[0023] As shown in the perspective view of Fig. 2, the connector 6 has a leg 61 and a support 62 extending upward from the leg 61. The support 62 has a first through hole 66 penetrating the support 62 and a second through hole 67 along the extending direction of the first through hole 66. The connector 6 has the leg 61 fixed to the upper surface of the frame-side horizontal member 1 as shown in Figs. 1 and 3. Fig. 3 shows a perspective view of the vicinity of the frame-side horizontal member 1 from diagonally above with the second roof panel 4 removed in order to explain the relationship between the first roof panel 2, the frame-side horizontal member 1, and the connector 6.

[0024] The pair of roof panels 2, 4 are joined together in a state where the roof panels 2, 4 are butted against each other, as shown in Fig. 4. Hereinafter, the portion forming the connection structure where the roof panels 2, 4 are butted against each other and joined is referred to as the panel joint part P. In the panel joint part P, the panel side cross members 3, 5 face each other, and are placed on the body side cross member 1 in a state where the pair of panel side cross members 3, 5 sandwich the support part 62 (see Figs. 1 to 3).

[0025] 5 shows a top view of the panel-side horizontal members 3 and 5 and the support portion 62 sandwiched therebetween. As shown in FIG. 5, the pair of panel-side horizontal members 3 and 5 are positioned by a drift pin 71 (an example of a positioning pin) that is inserted from one panel-side horizontal member 5 to the other panel-side horizontal member 3 and is passed through the first through hole 66.

[0026] In addition, the pair of panel side cross members 3, 5 are fastened together with a fastener that penetrates from one panel side cross member 5 to the other panel side cross member 3 and is inserted into the second through hole 67.

[0027] The roof construction method in this embodiment includes a support portion forming step, a connector mounting step, a panel mounting step, a positioning step, and a panel fastening step.

[0028] In the support portion forming step, a first through hole 66 penetrating the support portion 62 of the connector 6 shown in FIG. 2 and a second through hole 67 extending along the extension direction of the first through hole 66 are formed in the support portion 62.

[0029] In the connector attachment step, the legs 61 of the connector 6 are fixed to the upper surface of the frame-side cross member 1 as shown in FIG.

[0030] In the panel mounting process, the panel side cross members 3, 5 of a pair of roof panels 2, 4 are placed facing each other as shown in Figure 4, and the support portion 62 of the connector 6 is sandwiched between the pair of panel side cross members 3, 5 as shown in Figure 5. Then, the pair of roof panels 2, 4 are placed on the body side cross member 1 as shown in Figure 4.

[0031] In the positioning step, as shown in FIG. 5, a drift pin 71 (an example of a positioning pin) is inserted through the first through hole 66 and thrust from one panel side cross member 5 to the other panel side cross member 3.

[0032] In the panel fastening process, a pair of roof panels 2, 4 (see Figure 5) are fastened together using a fastener such as a bolt 72 that is inserted through the second through hole 67 and penetrates from one panel side cross member 5 to the other panel side cross member 3.

[0033] (Detailed explanation) As shown in FIG. 1, the building 200 includes a superstructure U including a roof structure 100 constituting a rafter roof, and a substructure D such as a living room side frame that supports the superstructure U and forms the living room portion of the building 200. An example of the building 200 is a wooden house constructed by a so-called panel construction method. The superstructures U and U and the other members may be connected to each other by various connectors (so-called metal fittings or fittings) having through holes through which drift pins are inserted, for example. In each of the figures described in FIG. 1 and the following, for convenience of explanation, in the figures showing the disassembled state or the assembly process, the drift pins may be shown inserted into each connector, but in reality, these drift pins are inserted when the members are connected by the connectors.

[0034] As described above, the roof structure 100 comprises the roof panels 2, 4, the body-side cross member 1 supporting the roof panels 2, 4, and the connector 6 fixed to the upper surface of the body-side cross member 1, as well as a roof structure including an eaves beam 11 supporting the roof panels 2, 4 together with the body-side cross member 1, and a rafter supporting the body-side cross member 1 and the eaves beam 11 via rafters or the like.

[0035] As shown in Figures 1 and 3, the body-side horizontal member 1 is a ridgepole or purlin arranged horizontally on the roof body, and is, for example, a square timber or a plate material. In Figure 1, the body-side horizontal member 1 is a ridgepole, but the body-side horizontal member 1 may also be a purlin. Ends of roof panels 2, 4 are placed on the body-side horizontal member 1. The connector 6 is fixed to the upper surface of the body-side horizontal member 1 as described above. The roof panels 2, 4 are connected to the body-side horizontal member 1 via the connector 6, as described below.

[0036] Fig. 6 shows a cross-sectional view taken along the line VI-VI in Fig. 5. Mortises 1a and 1b for fixing connectors 6 may be formed in the frame-side cross member 1 as shown in Fig. 6.

[0037] As shown in FIG. 2, the connector 6 has a rod-shaped (cylindrical in the present embodiment as an example) leg 61, a plate-shaped support 62, and a disk 63, which is a circular plate disposed between the leg 61 and the support 62. The connector 6 is a shuttlecock-shaped metal fitting for connecting the roof panels 2, 4 and fixing them to the frame-side cross member 1 (see FIG. 1). The support 62 extends from the plate surface of the disk 63. The leg 61 extends from the plate surface of the disk 63 opposite to the side from which the support 62 extends. The plate surface of the disk 63 and the plate surface of the support 62 are perpendicular to each other. The leg 61 is also perpendicular to the plate surface of the disk 63. That is, the support 62 extends from the disk 63 in a direction (upward) along the extension direction of the leg 61, and the plate surface is parallel to the extension direction of the leg 61. The support portion 62 is formed with a first through hole 66 penetrating its plate surface, and a second through hole 67 aligned with the extension direction of the first through hole 66. The leg portion 61 is formed with a leg through hole 68 aligned with the extension direction of the first through hole 66 (an example of a leg forming step). The hole diameter of the second through hole 67 is preferably equal to the hole diameter of the first through hole 66. The hole diameter of the leg through hole 68 is also preferably equal to the hole diameter of the first through hole 66.

[0038] The connector 6 is attached to the frame-side cross member 1 in a state in which the leg 61 is inserted into the frame-side cross member 1 from the upper surface side of the frame-side cross member 1 and embedded therein, as shown in FIG. 3. In this state, the face of the disk part 63 on the leg 61 side abuts against the upper surface of the frame-side cross member 1. As shown in FIG. 6, the connector 6 is inserted into the side surface of the frame-side cross member 1 and is fixed to the frame-side cross member 1 by a drift pin 73 inserted into the leg through hole 68. The connector 6 may be disposed at two or more different positions (two positions in this embodiment) in the extension direction of the frame-side cross member 1. In other words, a plurality of connectors 6 (two in this embodiment) may be disposed at different positions in the extension direction of the frame-side cross member 1.

[0039] In Fig. 6, mortise 1a is formed downward from the top surface of frame-side cross member 1. Mortise 1b is formed perpendicular to the extending direction (longitudinal direction) of frame-side cross member 1, penetrating from one side surface to the other side surface in the horizontal direction, and further intersecting perpendicularly with mortise 1a. Connector 6 may be attached to frame-side cross member 1 by inserting leg 61 into mortise 1a. Then, drift pin 73 may be inserted into mortise 1b and leg through hole 68 to be fixed to frame-side cross member 1.

[0040] As shown in Fig. 1, the eaves beam 11 is a cross member arranged along the horizontal direction, such as a square timber or a thick plate material. In this embodiment, the eaves beam 11 is arranged parallel to the body-side cross member 1. Ends of the roof panels 2 and 4 are placed on the eaves beam 11. Fig. 1 shows a case where the end of the second roof panel 4 is placed on the eaves beam 11.

[0041] The first roof panel 2 and the second roof panel 4 are panels that form a pair to form a roof. The roof panels 2, 4 may be preassembled in a factory and then transported to a construction site (hereinafter, may be simply referred to as the site) for use in constructing the roof structure 100.

[0042] 1 and 7, the first roof panel 2 includes rafters 20 supporting a roof foundation 25 including a sheathing board and a skeletal structure supporting the sheathing board, a panel-side cross member 3 intersecting the rafters 20 and supporting the upper end (one end) of the rafters 20, and a panel-side second cross member 30 supporting the lower end (the other end) of the rafters 20. When supported by the body-side cross member 1, the first roof panel 2 is inclined downward from the end supported by the body-side cross member 1 toward the other end.

[0043] 1, the second roof panel 4 has dimensions different from those of the first roof panel 2, but basically has a similar structure corresponding to the first roof panel 2. The second roof panel 4 includes a base 45 corresponding to the base 25, a panel-side cross member 5 corresponding to the panel-side cross member 3, and a panel-side second cross member 50 corresponding to the panel-side second cross member 30.

[0044] The following explanation will mainly be about the first roof panel 2, and the explanation of the second roof panel 4 will either appropriately refer to the explanation of the first roof panel 2 or be omitted. Furthermore, for convenience of explanation, the case of the second roof panel 4 will be explained as necessary, and the explanation of the first roof panel 2 will either appropriately refer to the explanation of the second roof panel 4 or be omitted.

[0045] As shown in Figs. 1 and 7, the panel-side cross member 3 is a square timber or plate material arranged horizontally. When the first roof panel 2 is supported by the body-side cross member 1, the panel-side cross member 3 is arranged so as to be parallel to the body-side cross member 1 (see Fig. 1). The panel-side cross member 3 is also arranged on the upper end side of the first roof panel 2. The panel-side cross member 3 is also placed on the body-side cross member 1 as shown in Fig. 1. That is, the first roof panel 2 is supported by the body-side cross member 1 via the panel-side cross member 3. The second roof panel 4 is similarly supported by the body-side cross member 1 via the panel-side cross member 5.

[0046] In the panel-side cross member 3, a plurality of sets (two sets in this embodiment) of mortise holes 3a, 3b (see Figs. 6 and 7) are formed, each set consisting of two holes, for connection with a connector 6 described later. As shown in Figs. 6 and 7, the mortise holes 3a, 3b are formed perpendicular to the extension direction (longitudinal direction) of the panel-side cross member 3 and penetrating from one side to the other side in the horizontal direction. In this embodiment, the mortise holes 3a, 3b are formed so that their hole diameters are equal. As shown in Fig. 6, the panel-side cross member 5 also has mortise holes 5a, 5b formed in the same manner. In this embodiment, the mortise holes 5a, 5b are also formed so that their hole diameters are equal. In addition, the mortise holes 3a, 3b, 5a, 5b are also formed so that their hole diameters are equal to that of the mortise hole 1b.

[0047] As shown in FIG. 7, the panel-side second horizontal member 30 is a square member or a plate member arranged along the horizontal direction. In this embodiment, the panel-side second horizontal member 30 is arranged parallel to the panel-side horizontal member 3. The panel-side second horizontal member 30 is arranged on the lower end side of the first roof panel 2. The panel-side second horizontal member 30 is fixed in a state of being placed on the eaves beam 11, or on a horizontal member 91 (see FIG. 1) that also serves as an eaves beam, such as a stud or beam of a wall panel in the substructure D as described later. That is, the first roof panel 2 is supported and fixed on the eaves beam 11 or the horizontal member 91 via the panel-side second horizontal member 30. FIGS. 1 and 8 show a case in which the panel-side second horizontal member 30 is supported and fixed on the eaves beam 11 in a state in which it is arranged parallel to the eaves beam 11. As shown in FIG. 1, the panel-side second horizontal member 50 of the second roof panel 4 is also supported and fixed in the same manner as the panel-side second horizontal member 30. FIG. 1 shows a case where the panel-side second horizontal member 50 is supported on and fixed to a horizontal member 91.

[0048] As shown in Figure 8, the panel side second cross member 30 may be fixed to the eaves beam 11 or the cross member 91, for example, via a connector 69 (see Figures 1 and 8) fixed to the upper surface of the eaves beam 11 or the cross member 91.

[0049] An example of the connector 69 is a tenon pipe. In this case, the tenon pipe as the connector 69 may be fixed to the eaves beam 11 or the cross member 91 in a state where it extends upward from the upper surface of the eaves beam 11 or the cross member 91. FIG. 8 illustrates a case where the connector 69 is fixed to the cross member 91, the first roof panel 2 is placed on the cross member 91, and the panel-side second cross member 30 is fixed to the connector 69.

[0050] As shown in FIG. 8, when a tenon pipe is used as the connector 69, a mortise hole 30a extending upward from the lower surface of the panel-side second horizontal member 30 is formed in advance, and the connector 69 can be inserted into the mortise hole 30a. Then, a drift pin 79 is inserted into the panel-side second horizontal member 30 in a horizontal direction and in a direction intersecting the extension direction of the panel-side second horizontal member 30. At this time, the drift pin 79 passes through the through hole of the connector 69 to connect the panel-side second horizontal member 30 and the connector 69. In this case, a mortise hole 30b for inserting the drift pin 79 is formed in advance in the panel-side second horizontal member 30. The mortise hole 30b is formed in the panel-side second horizontal member 30 in a horizontal direction and in a direction intersecting the extension direction of the panel-side second horizontal member 30. The mortise 30b intersects the mortise 30a perpendicularly. Fig. 8 illustrates a case where the first roof panel 2 is fixed to the eaves beam 11 via two connectors 69. The panel-side second cross member 50 may also have mortises corresponding to the mortises 30a and 30b, although not shown.

[0051] As shown in Fig. 1, the second roof panel 4 (panel-side second cross member 50) may be fixed to the eaves beam 11 or the cross member 91 via a connector 69, similar to the panel-side second cross member 30. Fig. 1 illustrates a case in which the panel-side second cross member 50 is fixed to the eaves beam 11 via two connectors 69.

[0052] 1 and 7, the rafter 20 is a square timber or a thick plate material supported at its upper end by the panel-side cross member 3 and at its lower end by the panel-side second cross member 30, and is spanned between the panel-side cross member 3 and the panel-side second cross member 30. A plurality of rafters 20 may be arranged. The rafter 20 supports a base 25. The rafter 40 and the base 45 are similar to the rafter 20 and the base 25.

[0053] As shown in Figures 4 to 6, at the panel joint part P, the pair of roof panels 2, 4 are arranged abutting each other with the panel-side cross members 3, 5 facing each other. As shown in Figures 5 and 6, the roof panels 2, 4 are joined via the support part 62 by sandwiching the support part 62 of the connector 6 between the panel-side cross members 3, 5. In addition, the roof panels 2, 4 are fixed to the frame-side cross member 1 via the connector 6 in a state where they are placed on the frame-side cross member 1 as shown in Figure 6.

[0054] A construction method for forming the panel joint portion P will be described. The connector 6 may be attached to the frame-side horizontal member 1 in advance at a factory and then transported to the site, or may be fixed to the frame-side horizontal member 1 at the site. As shown in FIG. 6, the connector 6 has its leg 61 inserted into the mortise hole 1a of the frame-side horizontal member 1 from the top side of the frame-side horizontal member 1 and embedded therein, and then the drift pin 73 is inserted into the leg through hole 68 and inserted into the side of the frame-side horizontal member 1. At this time, the drift pin 73 is inserted into the leg through hole 68 while being inserted into the mortise hole 1b. This fixes the connector 6 to the frame-side horizontal member 1.

[0055] When joining the roof panels 2, 4 together, it is advisable to form mortises 3a, 3b, 5a, 5b in the panel-side cross members 3, 5 in advance at the factory, with the same hole diameter as the first through hole 66.

[0056] Next, the panel-side cross members 3, 5 are placed on the frame-side cross member 1 and the eaves beam 11 or cross member 91 (see Figs. 1 and 8). At this time, as shown in Fig. 8, the connector 69 is inserted into the mortise hole 30a, etc. It is advisable to form the mortise hole 30a in advance at the factory. Thereafter, at an appropriate timing before the construction of the roof is completed, the drift pin 79 is inserted into the mortise hole 30b, etc. by hammering it in, etc., to complete the connection between the panel-side second cross member 30, 50 and the eaves beam 11 or cross member 91.

[0057] As shown in Fig. 4, when placing the panel-side cross members 3, 5 on the body-side cross member 1, the panel-side cross members 3, 5 are butted against each other and the support portion 62 is sandwiched between them. At this time, as shown in Fig. 5, the first through hole 66 and the mortise holes 3a, 5a are overlapped when viewed in a direction perpendicular to the plate surface of the support portion 62. In addition, the second through hole 67 and the mortise holes 3b, 5b are overlapped when viewed in a direction perpendicular to the plate surface of the support portion 62.

[0058] Then, the drift pin 71 is inserted into the first through hole 66 and the mortise holes 3a, 5a. At this time, even if the first through hole 66 and the mortise holes 3a, 5a are not completely overlapped and misaligned, the misalignment can be eliminated by inserting the drift pin 71 while pushing it in by tapping it. As a result, the panel side cross members 3, 5 are positioned based on the connector 6. As a result of the panel side cross members 3, 5 (roof panels 2, 4) being positioned based on the connector 6, the misalignment between the second through hole 67 and the mortise holes 3b, 5b is also eliminated. Next, the bolt 72 is inserted into the second through hole 67 and the mortise holes 3b, 5b, and is fastened by tightening the nut 72a, etc., to complete the joining of the roof panels 2, 4 to each other. Note that a washer may be sandwiched between the bolt 72 side and the nut 72a side as necessary, and a bolt with a washer or a nut with a washer may be used as the bolt 72 and the nut 72a. In this manner, two through holes (the first through hole 66 and the second through hole 67) are formed in the support portion 62 of the connector 6, so that positioning and fastening can be easily performed.

[0059] In this embodiment, as shown in Fig. 1 and Fig. 3, two connectors 6 are connected to a pair of panel-side horizontal members 3 and 5. In this case, as shown in Fig. 9 to Fig. 12, a drift pin 71 is inserted into the first through hole 66 and the mortise holes 3a, 5a, 3a, 5a of the panel-side horizontal members 3 and 5 and each connector 6, and then a bolt 72 is inserted into the second through hole 67 and the mortise holes 3b, 5b, 3b, 5b of each connector 6 to fasten them. This improves the accuracy of positioning based on the connectors 6, 6 of the panel-side horizontal members 3 and 5 (roof panels 2 and 4).

[0060] The construction procedure for positioning and fixing the panel-side cross members 3, 5 (roof panels 2, 4) based on the connectors 6, 6 will be described in more detail below with reference to Figs.

[0061] As shown in FIG. 9, immediately after the panel-side cross members 3, 5 are placed on the body-side cross member 1 (see FIG. 3), the panel-side cross members 3, 5 (roof panels 2, 4) are not positioned. Therefore, the first through hole 66 and the mortise holes 3a, 5a may be misaligned. The misalignment may occur in the vertical direction and in the extending direction of the panel-side cross members 3, 5. The second through hole 67 and the mortise holes 3b, 5b may also be misaligned. Hereinafter, the first through hole 66, the second through hole 67, and the mortise holes 3a, 5a may be collectively referred to as the respective through holes.

[0062] First, on the side of one of the connectors 6, a drift pin 71 is inserted into the first through hole 66 or the like (see Figure 10), and the positions of the panel side cross members 3, 5 are adjusted, and the misalignment of the other through holes is eliminated to a certain extent, so that the centers are roughly aligned.

[0063] Next, when the drift pin 71 is inserted into the first through hole 66 on the other connector 6 side (see FIG. 11), the position of the panel side cross members 3, 5 is completely adjusted, and the misalignment of the other through holes is completely eliminated and the centers are aligned. In other words, the position adjustment of the roof panels 2, 4 is completed in the vertical direction and in the extension direction of the panel side cross members 3, 5. In this state, the panel side cross members 3, 5 are fixed by fastening with the bolts 72, 72 (see FIG. 12). This completes the fixation of the panel side cross members 3, 5 (roof panels 2, 4) and also completes the position adjustment of the roof panels 2, 4 in the direction perpendicular to the extension direction of the panel side cross members 3, 5. In this way, according to the construction method of this embodiment, by using two or more connectors 6, drift pins 71, and bolts 72 as fastening devices to adjust the position of the roof panels 2, 4 and fasten them, the construction work can be made simple and straightforward while still further improving the positioning accuracy of the panel side cross members 3, 5 (roof panels 2, 4).

[0064] Regarding each step in the construction procedure, including the positioning process of the roof panels 2, 4 described in Figures 9 to 12, additional explanations will be provided based on Figures 13 to 15, which show the vicinity of the cross member 1 on the structural body side as viewed from diagonally below.

[0065] After the roof panels 2, 4 are placed on the cross member 1 on the body side, the roof panels 2, 4 are positioned with drift pins 71 (see FIG. 13). The task of placing the roof panels 2, 4 on the cross member 1 on the body side does not require advanced skills, as it is sufficient to position the roof panels 2, 4 to a certain level. When the drift pins 71 are inserted, the roof panels 2, 4 are stably placed on the cross member 1 on the body side, so there is no difficulty in inserting the drift pins 71.

[0066] Next, the bolts 72 are attached (see FIG. 14) to position and secure the roof panels 2, 4 (see FIG. 15). At this time, since the roof panels 2, 4 are already positioned, there is no difficulty in inserting the bolts 72. When the bolts 72 are fully tightened, the positioning and securing of the roof panels 2, 4 are completed, but this type of work does not require advanced skills.

[0067] According to the construction method of this embodiment, after the roof panels 2, 4 are placed on the main body cross member 1, the roof panels 2, 4 can be positioned and fixed with high precision by the extremely simple operation of inserting the drift pins 71 and fixing them with bolts 72, as shown in Figures 9 to 15.

[0068] In this embodiment, the diameters of the first through hole 66, the second through hole 67, the leg through hole 68, and the mortise holes 3a, 3b, 5a, and 5b (see FIG. 5) are set to be equal. This makes it possible to use the drift pin 73 in common with the drift pin 71, and to appropriately interchange the combination of the drift pin 71 and the bolt 72 inserted into the first through hole 66 and the second through hole 67, thereby realizing the standardization of parts and simplification of on-site work.

[0069] In this way, it is possible to provide a roof structure and a roof construction method using roof panels that can be easily manufactured while ensuring construction accuracy at the construction site. Furthermore, if construction accuracy can be ensured at the construction site, it is possible to simultaneously achieve ultra-high airtightness and high thermal insulation performance in the house.

[0070] [Another embodiment] (1) In the above embodiment, the connector 6 has a rod-shaped leg 61 and a plate-shaped support 62. However, the connector 6 does not necessarily need to have the plate-shaped support 62 in addition to the leg 61. For example, as shown in FIG. 16, a flat bar may be used as the connector 6. In this case, one end of the flat bar is used as the leg, and a leg through hole 68 is formed therein, and the other end is used as the support, and a first through hole 66 and a second through hole 67 are formed therein. The first through hole 66 and the second through hole 67 may be formed in a line up above and below in the extending direction of the flat bar as the connector 6. When a flat bar is used as the connector 6, the panel-side second cross member 30, 50 (see FIG. 5, etc.) may be fixed with a drift pin 71 and a bolt 72 as shown in FIG. 17, similarly to the example described in the above embodiment. In this case, the mortise holes formed in the panel-side second cross member 30, 50 correspond to the positions of the first through hole 66 and the second through hole 67 formed in the connector 6 when the flat bar is used.

[0071] (2) In the above embodiment, the case where the body-side horizontal member 1 is a ridgepole has been described. In addition, in the first roof panel 2, the panel-side horizontal member 3 is arranged on the upper end side of the first roof panel 2, and the panel-side second horizontal member 30 is arranged on the lower end side of the first roof panel 2. Furthermore, the case where the second roof panel 4 has a similar structure has been described. Here, in the above embodiment, it has been described that the body-side horizontal member 1 may be a purlin, but when the body-side horizontal member 1 is a purlin, it is preferable to modify one of the roof panels to be butted together so that the panel-side horizontal member is arranged on the lower end side of the roof panel, and the panel-side second horizontal member is arranged on the upper end side of the roof panel 2.

[0072] In addition, the configurations disclosed in the above embodiments (including other embodiments, the same applies below) can be applied in combination with configurations disclosed in other embodiments, provided no contradiction arises. Furthermore, the embodiments disclosed in this specification are illustrative, and the embodiments of the present invention are not limited thereto, and can be appropriately modified within the scope that does not deviate from the purpose of the present invention. [Industrial Applicability]

[0073] The present invention is applicable to a roof structure and a roof construction method. [Explanation of symbols]

[0074] 1: Body side cross member 1a: Hole 1b: Hole 2: First roof panel (roof panel) 3: Panel side cross member 3a: hole 3b: Hole 4: Second roof panel (roof panel) 5: Panel side cross member 5a: Hole 5b: hole 6: Connector 11: Eave girder 20: Rafter 25: Base 30: Second cross member on panel side 30a: Hole 30b: hole 40: Rafter 45: Base 50: Second cross member on panel side 61: Legs 62: Support part 63: Disc section 66:First through hole 67:Second through hole 68: Leg through hole 69: Connector 70: Drift pin 71: Drift pin 72: Bolt (fastener) 72a: Nut 73: Drift pin 79: Drift pin 91: Cross member 100: Roof structure 200: Building D: Substructure P: Panel joint U:Superstructure

Claims

1. A pair of roof panels each having a rafter supporting a roof base and a panel side cross member intersecting the rafter and supporting one end side of the rafter; A body-side cross member supporting the pair of roof panels; A connector having a leg portion fixed to an upper surface of the frame-side cross member and a support portion extending upward from the leg portion; Equipped with The support portion has a first through hole penetrating the support portion and a second through hole extending along an extension direction of the first through hole, The pair of roof panels are placed on the body-side cross member with the panel-side cross members facing each other at a panel joint portion where the roof panels are joined in a butted state, and the pair of panel-side cross members are placed on the body-side cross member with the support portion sandwiched between them; The pair of panel side cross members are The panel-side cross member is inserted from one of the panel-side cross members to the other panel-side cross member, and is positioned by a positioning pin inserted through the first through hole, A roof structure in which a fastener is inserted from one of the panel side cross members to the other panel side cross member and fastened with a fastener inserted through the second through hole.

2. The roof structure according to claim 1 , wherein the diameter of the second through hole is equal to the diameter of the first through hole.

3. The leg portion has a leg through hole formed therein along an extension direction of the first through hole, 3. The roof structure according to claim 1, wherein the connecting device is fixed by a drift pin that is inserted into the side of the structure-side cross member and through the leg through hole, with the leg inserted into the top surface of the structure-side cross member and embedded therein.

4. The roof structure according to claim 3 , wherein the hole diameter of the leg through hole is equal to the hole diameter of the first through hole.

5. A pair of roof panels each having a rafter supporting a roof base and a panel side cross member intersecting the rafter and supporting one end side of the rafter, A body-side cross member supporting the pair of roof panels; A roof construction method for butt-joining the roof panels together using a connector having a leg portion and a support portion extending upward from the leg portion, comprising: a support portion forming step of forming a first through hole penetrating the support portion and a second through hole along an extension direction of the first through hole in the support portion; a connector attachment step of fixing the leg portion to an upper surface portion of the frame-side cross member to fix the connector to the frame-side cross member; A panel mounting process in which the pair of roof panels are placed on the body-side horizontal member with the panel-side horizontal members facing each other and the support portion sandwiched between the pair of panel-side horizontal members; A positioning step of inserting a positioning pin through the first through hole from one of the panel side cross members to the other panel side cross member; A panel fastening process for fastening the pair of roof panels with a fastener inserted through the second through hole and extending from one of the panel side cross members to the other panel side cross member.

6. The roof construction method according to claim 5 , wherein in the support portion forming step, a diameter of the second through hole is set equal to a diameter of the first through hole.

7. The method further includes a leg forming step of forming a leg through hole in the leg portion along the extension direction of the first through hole, 7. The roof construction method according to claim 5 or 6, wherein the connector installation step includes inserting the leg into the upper surface of the structure-side cross member so as to embed the leg, and then inserting a drift pin into the side of the structure-side cross member while passing it through the leg through hole.

8. The roof construction method according to claim 7 , wherein the leg forming step comprises making the hole diameter of the leg through hole equal to the hole diameter of the first through hole.

9. A roof construction method as described in any one of claims 6 to 8, wherein the positioning step includes forming mortise holes in both panel side cross members in advance, the mortise holes having a hole diameter equal to the hole diameter of the first through hole, so that the positioning pin can be inserted therethrough, and then inserting the positioning pin into the mortise holes.

10. The connector mounting step includes arranging the connectors at two different positions in the extension direction of the frame-side cross member, The roof construction method according to claim 6 , wherein the positioning step includes inserting the positioning pin into the first through hole of each of the connectors.

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