JP2017020192A - Roof panel and fixation structure thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an appearance invisible in a fixing machine screw, while having sufficient fixation strength and water leakage prevention performance, when constructing a roof by mutually joining while fixing a plurality of roof panels to a purlin material.SOLUTION: A fixation part 200 of a joining end part 1A on one end side of a roof panel 1 composed of a metal sandwich panel, is fixed to a purlin material 2 by a machine screw 3, and next, in a joining end part 1B on the other end side of the roof panel 1 fixed in the next place to the joining end part 1A on the one end side of the fixed roof panel 1, a first engaging object part 250 is engaged with a first engaging part 230, and a second engaging object part 150 is inserted into a groove part, and the second engaging object part 150 is engaged with a second engaging part 110, and a superimposing part 40 is superimposed on the fixation part 200, and the machine screw 3 is built in the joining end part, and an appearance of a roof is formed in a flat surface invisible in the machine screw 3.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a roof panel in which a plurality are joined to form a roof of a building, and a fixing structure for fixing the plurality of roof panels.

  When constructing the roof of a building such as a factory, a warehouse, or a house, a plurality of rectangular roof panels are used as roofing materials, and the roof panels are joined together in parallel on the roof frame in the horizontal direction. There is a known construction method for fixing the frame to the roof frame (see Patent Document 1). Such a method can construct a roof easily, and cost reduction and construction period shortening are achieved. Examples of the roof panel include a wooden plate, a metal plate, a PC plate, etc. In addition to this, a metal sandwich panel in which a plate-like heat insulating material is sandwiched between two thin (for example, 0.35 mm thick) metal plates. Is widely used because it is lightweight but has high strength, durability and heat insulation.

JP 2011-188792 A

  In order to fix the roof panel to the roof frame in the construction of the roof panel as described above, a screw member such as a screw passed through the roof panel from the surface side of the roof panel is screwed into the main building material constituting the roof frame. There is a structure to be fastened (see Patent Document 1 above). However, when the roof panel is screwed in this way, there is a problem that the head of the screw is exposed on the surface of the roof panel, so that the appearance is inferior. In addition, there is a tendency for water to enter from the through hole of the screw to cause water leakage or to accumulate dust around the screw. Furthermore, if a gap is generated between the head of the screw and the surface of the roof panel due to deformation of the roof panel or the like, in winter the water that has entered the gap freezes and moves in the direction in which the screw comes out, resulting in the roof There is also a phenomenon that the panel is not sufficiently fixed. For this reason, it was a fixed structure unsuitable for cold regions.

  The present invention has been made in view of the above circumstances, and a roof panel capable of obtaining an external appearance in which a fixing screw member is not visible, and capable of obtaining sufficient fixing strength and water leakage prevention properties over a long period of time, and its The purpose is to provide a fixed structure.

  In the roof panel of the present invention, a core member is sandwiched between a metal plate on the front surface side and a metal plate on the back surface side, and has joint end portions on one end side and the other end side, and the one end side of the plurality of the panels A roof panel fixed to a purlin member in a state where the joint end on the other end side is joined to the joint end of the roof panel, the joint end on the one end side of the roof panel being a metal plate on the back side Projecting from the end surface of the core member, formed in a bowl shape and fixed to the purlin member, a first engaging portion formed at the end of the fixed portion, and a surface side of the core member A step portion formed by cutting off a corner portion, a second engagement portion formed by projecting the surface side metal plate covering the surface side of the step portion, the step portion and the second portion A groove formed on the side formed by the engaging portion, and the joining end on the other end side of the roof panel is at least on the surface side A superposed portion composed of a metal plate and the core material and superposed on the fixed portion; a first engaged portion that is formed of the metal plate on the back surface side and engages with the first engaging portion; and the front surface And a second engaged part that is inserted into the groove and engages with the second engaging part.

  The roof panel fixing structure according to the present invention includes a plurality of the roof panels according to the present invention, wherein the metal plate on the back surface is opposed to the roof fixing member, and the other end is connected to the joint end on the one end side. A roof panel fixing structure that is fixed to the roof fixing member in a state in which the joint end portion on the side is joined, and the fixing portion of the joining end portion on the one end side of the one roof panel is used as the roof fixing member. The fixed portion is fixed to the roof fixing member with a screw member so as to face each other, and then the joint end on the other end side of the second roof panel with respect to the joint end portion on the one end side of the fixed one roof panel The first engaging portion is engaged with the first engaged portion, and the overlapping portion is overlapped with the fixing portion to cover the screw member with the overlapping portion, and the groove portion is A second engaged portion is inserted and the second engaged portion is inserted into the second engaged portion. Characterized by bonding by engaging the engaged portion of the.

  According to the roof panel and the roof panel fixing structure of the present invention, the roof panel is fixed to the roof fixing member by fixing the fixing portion of the joint end on one end side of the roof panel (one roof panel) to the roof fixing member. It is fixed to the fixing member. And the joining edge part of the other end side of the roof panel (second roof panel) joined in parallel with the fixed roof panel is joined to the joining edge part of the one end side of the fixed roof panel, and the roof panel is the same. The roof is constructed by repeatedly fixing to the roof. The screw member in the present invention is a fastening member such as a male screw, a screw, or a bolt, and refers to a member that is fixed to the roof fixing member by passing through the fixing portion and screwed into the roof fixing member. The roof panel of the present invention is formed in, for example, a rectangular shape, one of the end portions along the longitudinal direction is a joining end portion on one end side, and the other side is a joining end portion on the other end side, and the roof is inclined by the longitudinal direction. Is constructed.

  At the joint ends of the plurality of roof panels fixed in parallel as described above, the first engaged portion is engaged with the first engaging portion, and the second engaged portion is engaged with the groove portion. As the portion is inserted, the second engaged portion engages with the second engaging portion, and the joined state is maintained. And the screw member which is fixing the fixed part of the one end side to the roof fixing member is covered with the overlapping part of the joint end part of the other end side. Since the screw member is covered with the overlapping portion of the joining end portion on the other end side, the screw member is not exposed to the surface of the roof panel, and an appearance in which the screw member cannot be seen can be obtained. Further, since the screw member is not exposed on the surface of the roof panel, the above-mentioned freezing problem does not occur, and a sufficient fixing strength can be obtained over a long period of time. When water adheres to the surface of the roof panel due to rain or snow, the water flows on the metal plate on the surface side and falls from below the eaves, and in some cases, the water enters between the joint ends. The water that has entered the mutual joining end portions is received by the hook-shaped fixing portion of the joining end portion on one end side, and can flow and be discharged through this fixing portion, thereby preventing water leakage.

  The roof panel of the present invention has a configuration in which a seal member capable of contacting the second engaged portion of the joint end on the other end is fixed to the groove of the joint end on the one end side. Including. According to this form, the water that has entered between the joint ends from the surface of the roof panel is prevented from further intrusion by the sealing member. A double water leakage prevention structure is obtained together with the water leakage prevention measure for discharging water by the hook-shaped fixing portion at the joint end portion on the one end side.

  In the roof panel of the present invention, the metal plate on the front surface side and the metal plate on the back surface side have elasticity, and the engagement of the first engaged portion with the first engagement portion, and the The engagement of the second engaged portion with respect to the second engaging portion includes a form that is elastic engagement. According to this aspect, the engagement of each engaged portion with each engaging portion can be performed with elastic deformation, so that the roof panels can be joined easily and reliably. Moreover, even if the roof panel moves due to an earthquake or the like, the metal plate is elastically deformed, so that the occurrence of problems such as breakage is suppressed and the joined state is maintained.

  Further, in the roof panel of the present invention, the exposed surface of the metal plate on the surface side is formed flat in a state where the fixing portion is fixed to the purlin material and a plurality of the panels are joined. including. In this form, it is easy for the snow to slide down during snowfall, and it is difficult for snow to accumulate.

  The roof panel fixing structure according to the present invention includes a form in which a reinforcing member is fitted to the fixing portion, and the fixing portion is fixed to the roof fixing member together with the reinforcing member with the screw member. By fitting the reinforcing member to the fixing portion, the fixing strength can be sufficiently secured even if the metal plate on the back side is thin.

  The roof panel fixing structure of the present invention includes a form in which a caulking material is interposed between the second engaging portion and the second engaged portion. According to this embodiment, the water that has entered between the joint ends from the surface of the roof panel is prevented from further intrusion by the caulking material. A double water leakage prevention structure is formed together with the water leakage prevention measure for discharging water by the hook-shaped fixing portion at the joint end on the one end side. Moreover, if the roof panel provided with the above-mentioned sealing member is used, a triple high airtight water leakage prevention structure can be obtained.

  According to the present invention, it is possible to obtain an appearance in which a fixing screw member cannot be seen, and to provide a roof panel and a fixing structure thereof capable of obtaining sufficient fixing strength and water leakage prevention performance over a long period of time. Play.

1 is a perspective view showing a roof structure in which a plurality of roof panels according to an embodiment of the present invention are joined. It is another direction perspective view of the same roof structure. It is another direction perspective view of the same roof structure. It is sectional drawing which shows the fixing structure of the roof panel of one Embodiment. It is sectional drawing of the state which isolate | separated the joining edge part of the one end side and other end side of a roof panel. It is the (a) top view and (b) sectional view of the hanger used as a reinforcing member when fixing a roof panel.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIGS. 1 to 3 each show a state in which a roof is formed by joining rectangular roof panels 1 according to an embodiment of the present invention, and FIG. 4 is a cross section of a joined portion of the roof panel 1 and a fixed structure. Is shown. The roof panel 1 is installed on the purlin 2 constituting the roof frame, and a joint end 1A on one end side (right side) of the left roof panel 1 is fixed to the purlin 2 with screws (screw members) 3 in FIG. Is done. And the joining edge part 1B of the other end side (left side) of the right roof panel 1 is joined to the joining edge part 1A of one end side, and a fixed state is maintained. In this way, the roof end 1A of the roof panel 1 is fixed with the screw 3 in this manner, and the other end side end 1B of the roof panel 1 is bonded to the end 1A of the roof panel 1 thus fixed. It is constructed by repeating the steps and installing a predetermined number of sheets.

  In this case, the roof is inclined at a predetermined angle, and the roof panel 1 is constructed with the vertical direction (longitudinal direction) arranged parallel to the inclination direction indicated by the arrow S in FIG. The joint ends 1A and 1B on the one end side and the other end side are along the vertical direction. The purlin 2 extends horizontally along the direction of the row of arrows indicated by the arrow T in FIG. 1, and a plurality of purlins 2 are provided on a rafter (not shown) at intervals in the inclination direction. Wood or a metal channel or the like is used for the purlin 2, but in the illustrated example, it is wooden, and the screw 3 corresponds to the wooden purlin 2. When the purlin 2 is made of metal, the screw 3 is of a type corresponding to that. Hereinafter, the structure of the roof panel 1 and the fixing structure of the roof panel 1 will be described.

[1] Roof Panel As shown in FIG. 4, the roof panel 1 is a metal sandwich panel having an excellent heat insulating function in which a core material 30 made of a plate-like heat insulating material is sandwiched between two metal plates 10 and 20. . Most of the metal plates 10 and 20 that are in contact with the core member 30 are parallel to each other, and the cross-sectional shapes of the joint ends are different. The metal plate 10 is arranged on the upper side and constitutes the surface of the roof, and the metal plate 20 is arranged on the lower side and constitutes the back surface fixed to the main building material 2.

  Although the material of the metal plates 10 and 20 is not limited, a steel plate is suitable, for example, a molten 55% aluminum-zinc alloy plated steel plate (galvalume steel plate) or a zinc-aluminum 6% -magnesium 3% plated steel plate (ZAM: registered trademark). ) Or a colored steel plate or the like. The metal plates 10 and 20 have a thickness (for example, about 0.35 mm) that can be elastically deformed. Moreover, although the lightweight resin foam material, such as a polystyrene, is used for the heat insulating material 13, for example, the material is also not limited. The thickness of the core material 30 is, for example, 25 to 100 mm. The overall dimensions of the roof panel 1 are arbitrary and correspond to the roof to be constructed. For example, the longitudinal length: 1800 to 13000 mm, the width: 400 to 1200 mm, and the thickness: about 25 to 100 mm are mentioned. It is done.

[1-1] Joint End on One End The joint end 1A on one end of the roof panel 1 will be described. As shown on the left side of FIG. 5, the corner portion on the front surface side (upper side in FIG. 5) is lost at the end of the core material 30 to form a stepped portion 310, and the back surface side (lower side in FIG. 5). A projecting portion 320 is formed on the side.

  At the end of the metal plate 20 on the back surface side, a flat portion 210 protruding sideways a predetermined length from the end surface 321 of the protruding portion 320 of the core member 30 is formed, and the tip of the flat portion 210 is perpendicular to the front surface side. A rib portion 220 is formed by bending to a side, and a first engagement portion 230 is formed that is bent from the rib portion 220 at a right angle to the side and then bent into a loop shape while having a bulge in a rectangular cross section. ing. The flat part 210 and the rib part 220 of the metal plate 20 form a hook-shaped fixing part 200. A plurality of screw insertion holes 211 through which the screws 3 are inserted are formed in the flat portion 210 of the fixed portion 200 at intervals in the longitudinal direction (the front and back direction in FIG. 5). The pitch between the screw insertion holes 211 corresponds to the pitch between the plurality of purlins 2 arranged in the inclination direction.

  At the end portion of the metal plate 10 on the front surface side, a second engagement portion 110 that protrudes so as to cover the surface side of the step portion 310 of the core member 30 and is bent 180 ° while having a bulge in a parallelogram shape in cross section. Is formed. The metal plate 10 is further bent along the step portion 310 from the second engagement portion 110 and covers the middle of the end surface 321 of the protruding portion 320 of the core member 30. In addition, the metal plate 10 is formed with a groove 120 that opens to the side by a second engaging portion 110 and a bent portion along the step portion 310.

  A seal member 190 is fixed in the groove 120 over the entire length. As the seal member 190, a sealing material having elasticity such as EPDM (ethylene-propylene-diene rubber) is preferably used. The second engaging portion 110 has an outer inclined surface 111 and an inner inclined surface 112 which are parallel to each other and gradually inward as it goes to the side.

[1-2] Joint End on the Other End Next, the joint end 1B on the other end of the roof panel 1 will be described. As shown on the right side of FIG. 5, the end portion on the other end side of the core member 30 is formed with a stepped portion 350 by missing a corner portion on the back surface side. And the superimposition part 40 which protrudes to the side is formed in the surface side of the joining edge part 1B. The overlapping portion 40 is composed of the metal plates 10 and 20 and the core material 30 on the front surface side and the back surface side.

  At the end of the metal plate 20 on the back surface side, a first engaged portion 250 is formed which protrudes laterally along the back surface of the core member 30 and is bent 180 ° while having a bulge in a rectangular cross section. ing. The metal plate 20 on the back surface side is continuously bent from the first engaged portion 250 along the stepped portion 350 and extends to the vicinity of the tip along the lower surface of the stepped portion 350. The first engaged portion 250 is engaged with the first engaging portion 230.

  A second engaged portion 150 that protrudes further laterally from the overlapping portion 40 and engages with the second engaging portion 110 is formed at the end of the metal plate 10 on the front side. The second engaged portion 150 is bent to the end face side of the core member 30 of the overlapping portion 40 and then extends to the side, and has a bulging portion 151 having a triangular cross section at the tip. On the base portion of the second engaged portion 150, a ridge 152 that contacts the outer inclined surface 111 of the second engaging portion 110 is formed, and between the ridge 152 and the bulging portion 151. In addition, a groove portion 153 that is open on the surface side into which the second engaging portion 110 is fitted and engaged is formed.

[2] Roof Panel Fixing Structure Next, a procedure for constructing a roof by rolling a plurality of roof panels 1 having the joint ends 1A and 1B on the one end side and the other end side, and a fixing structure of the obtained roof panel 1 will be described. To do.

  The roof panel 1 (one roof panel) is placed at a predetermined location on the plurality of purlins 2 with the metal plate 20 on the back side being arranged on the lower side and the vertical direction being along the inclination direction of the roof. . The metal plate 20 on the back side is in contact with the upper surface of the purlin 2. Further, the screw insertion holes 211 formed in the flat portion 210 of the fixed portion 200 are formed at locations corresponding to the pitch between the purlin members 2, and the screw insertion holes 211 are matched with the purlin material 2. The screw insertion holes 211 may be formed in the field according to the pitch between the purlins 2.

  Next, the metal plate 20 on the back surface side is fixed to the purlin member 2 with screws 3, and for fixing, a hanging member (reinforcing member) 4 is set on the hook-shaped fixing portion 200, and the metal plate 20 is attached together with the hanging member 4. Is fixed to the purlin 2.

  As shown in FIG. 6, the hanging element 4 is formed by bending a rectangular plate material into a substantially hat-shaped cross section so that it can be fitted to the hook-shaped fixing part 200 from the surface side. A screw insertion hole 411 is formed on the base portion 41 and the base portion 41 is placed on the flat portion 210. As shown in FIGS. 4 and 6, side wall portions 42 and 44 are formed on both sides of the base portion 41 so as to rise at right angles, respectively, and from the upper end of one side wall portion 42 (left side in FIG. 6) The first blade portion 43 that contacts the top end portion 10 extends obliquely upward, and from the upper end of the other side wall portion 44 (on the right side in FIG. 6), on the first engagement portion 230 of the metal plate 20 on the back surface side. The second blade portion 45 that contacts the flared portion extends. The hanging element 4 is formed by processing a plate material having a thickness of about 0.5 to 3.5 mm made of, for example, a galvanized steel sheet.

  An airtight seal 49 made of, for example, butyl rubber is bonded to almost the entire back surface of the base portion 41 of the hanging element 4. An adhesive is attached to the outer surface of the hermetic seal 49, and the adhesive is covered with release paper.

  Now, in order to fix the metal plate 20 on the back surface to the purlin 2, first, the release paper of the hermetic seal 49 is peeled off, and the adhesive surface of the hermetic seal 49 is adhered to the surface of the flat part 210, as shown in FIG. As shown, the hanger 4 is fitted to the fixed part 200. At this time, the screw insertion hole 411 of the hanging element 4 is matched with the screw insertion hole 211 of the flat portion 210 of the metal plate 20. Then, the screw 3 is passed through the screw insertion holes 411 and 211, and further, the airtight seal 49 is penetrated to be tightened into the main building material 2. This operation is performed on the plurality of purlin members 2 and one roof panel 1 is fixed on the plurality of purlin members 2.

  The screw 3 is provided with a water-stopping packing on the back side of the head, and is configured such that the packing is sandwiched between the head and the flat portion 210 to be crimped. It is preferable in terms of improvement. Further, the hermetic seal 49 may not be pre-adhered with an adhesive for adhering to the flat portion 210 of the metal plate 20, and may not be pre-adhered to the suspension 4. Also good. That is, regardless of the presence or absence of the adhesive, the hermetic seal 49 has a structure that is sandwiched between the base portion 41 of the hanger 4 and the flat portion 210 of the metal plate 20 after construction.

  Subsequently, the joint end 1B on the other end side of the next roof panel 1 (second roof panel) to be joined in parallel to the roof panel 1 fixed to the main building material 2 is joined to one end side of the fixed roof panel 1. It joins with respect to the edge part 1A as follows.

  First, the caulking material 5 is filled into the groove portion 153 of the second engaged portion 150 of the roof panel 1 to be joined. Then, as shown in FIG. 4, the first engaged portion 250 is engaged below the first engaging portion 230 on the back surface side, and the second engaged portion is engaged with the groove portion 120 on the front surface side. The bulging portion 151 of the joint portion 150 is inserted and the second engaging portion 110 is fitted into the groove portion 153 of the second engaged portion 150 so that the second engaged portion 110 is inserted into the second engaged portion 110. 150 is engaged. By repeatedly performing this operation, the plurality of roof panels 1 are sequentially fixed to the purlin 2 and the roof is constructed.

  In the fixing structure of the adjacent roof panel 1 fixed in this way, the overlapping portion 40 of the joint end 1B on the other end is placed on the fixing portion 200 of the metal plate 20 on the back surface side in the joint end 1A on the one end. And the head of the screw 3 is covered by the overlapping portion 40. The first engaged portion 250 of the joining end portion 1B on the other end side is elastically engaged below the first engaged portion 250 of the joining end portion 1A on the one end side. In addition, the second engaged portion 150 of the joint end 1B on the other end side enters the lower side of the second engagement portion 110 with respect to the joint end 1A on the one end side. The engaging portion 110 and the second engaged portion 150 are elastically deformed and engaged with each other.

  In the joined state, the first engaged portion 250 is engaged with the first engaging portion 230 at the joint end portions 1A and 1B of the plurality of roof panels 1 fixed in parallel. Then, the second engaged portion 150 is engaged with the second engaging portion 110, and the joined state is maintained. A slight gap is formed between the metal plates 20 on the back side. In addition, the tip of the bulging portion 151 of the second engaged portion 150 abuts in an airtight manner in a state of being crimped to the seal member 190. Further, on the surface side, the protrusion 152 is in contact with the outer inclined surface 111, so that there is no gap between the adjacent metal plates 10, and the space between the second engaging portion 110 and the second engaged portion 150 is not formed. The caulking material 5 is interposed in the gap, and the caulking material 5 seals the gap.

[3] Effects of one embodiment According to the roof panel 1 and the fixing structure of the one embodiment, the following effects are exhibited.

[3-1] Appearance of invisible screws Although the head of the screw 3 that fixes the roof panel 1 to the purlin 2 is exposed on the surface side of the hanger 4, the roof panel 1 is joined to the screw. 3 is covered with the overlapping portion 40 of the joint end 1B on the other end side. Moreover, the adjacent metal plates 10 on the surface side are in contact with each other. For these reasons, the head of the screw 3 is not exposed on the surface of the roof panel 1. That is, it is possible to obtain an appearance in which the screws 3 are not visible on the roof surface. Further, since the screw 3 does not penetrate the surface-side metal plate 10, there is no problem that water enters from the through-hole of the surface-side metal plate 10 and causes water leakage or dust accumulation around the screw.

[3-2] Prevention of water leakage by improving water stoppage When water adheres to the surface of the roof panel 1 (surface of the metal plate 10) due to rain or snowfall, the water flows on the surface of the metal plate 10 and falls from under the eaves. Drained. Since the surface of the metal plate 10 is flat, drainage is high. The outer inclined surface 111 of the second engaging portion 110 and the convex stripe 152 of the second engaged portion 150 are in contact with each other, but when water enters between them, the caulking material 5 further increases the amount. Intrusion to the inside is suppressed.

  Further, when the caulking material 5 does not prevent water from entering, the sealing member 190 prevents further intrusion. Up to this point, a double water leakage prevention structure using the caulking material 5 and the seal member 190 is obtained. In addition, for example, when the joining state of the roof panels 1 is loosened and a gap is generated between the seal member 190 and the bulging portion 151, water may enter further inside from the gap. Water is received by the bowl-shaped fixing part 200 of the metal plate 20 on the side, and the water falls along the fixing part 200 and drains toward the eaves direction. Screw insertion holes 411 and 211 are formed in the hanger 4 and the flat portion 210, but even if water passes through the screw insertion holes 411 and 211, further infiltration is prevented by the airtight seal 49. By providing a structure for receiving and draining water by the bowl-shaped fixing portion 200, a triple high airtight water leakage prevention structure is obtained together with the caulking material 5 and the seal member 190.

[3-3] Fixing strength When the head of the screw 3 is exposed on the metal plate 10 on the surface side, as described above, it occurred between the head of the screw 3 and the surface of the roof panel 1 in winter. Water entering the gap may freeze and the fixing strength may be insufficient. However, in this embodiment, since the screw 3 is built in the joint and is not exposed on the surface, the problem of freezing does not occur, and a sufficient fixing strength can be obtained over a long period of time. Therefore, it is a structure that can be applied to cold regions.

  Further, the hanging member 4 is fitted as a reinforcing member to the fixing portion 200 of the metal plate 20 on the back surface side, and the hanging member 4 and the metal plate 20 are overlapped with each other and fixed to the purlin member 2 with screws 3. For this reason, even if the metal plate 20 is thin, sufficient fixing strength can be ensured. In addition, since the fixing strength can be ensured in this way, for example, even if a strong wind pressure is applied, the screw 3 can be prevented from coming off and the metal plate 20 can be prevented from being deformed, and the water stoppage can be prevented from being impaired.

[3-4] Easy Joining and Holding of Joined State The metal plate 10 on the front surface side and the metal plate 20 on the back surface side of the roof panel 1 have elasticity, and the first engagement portion 230 has a first The engaged portion 250 is elastically engaged, and the second engaged portion 150 is elastically engaged with the second engaging portion 110. For this reason, joining of the roof panel 1 can be performed easily and reliably. Moreover, even if the roof panel 1 moves due to an earthquake or the like, the metal plates 10 and 20 are elastically deformed, so that the occurrence of problems such as breakage is suppressed and the joined state is maintained. Furthermore, when the metal plates 10 and 20 expand or contract in response to a heat change, their thermal deformation is allowed by elastic deformation and the bonding is maintained.

[3-5] About Snow Damage Suppression The metal plate 10 on the surface side of the joined roof panel 1 has a flat exposed surface, and thus the entire surface of the roof panel is flat. Snow is hard to pile up.

  INDUSTRIAL APPLICABILITY The present invention is suitably used as a roof panel used as a roofing material for buildings such as factories, warehouses, and houses, and a fixing structure for fixing a plurality of roof panels.

DESCRIPTION OF SYMBOLS 1 ... Roof panel 1A ... Joining edge part of one end side 1B ... Joining edge part of the other end side 2 ... Purlin material 3 ... Screw (screw member)
4 ... Hanging element (reinforcing member)
DESCRIPTION OF SYMBOLS 5 ... Caulking material 10 ... Metal plate 110 on the surface side ... Second engagement part 120 ... Groove part 150 ... Second engaged part 190 ... Seal member 20 ... Metal plate 200 on the back side ... Fixing part 230 ... First Engaging portion 250 ... first engaged portion 30 ... core material 310 ... step portion 321 ... end surface of the core material 40 ... overlapping portion

Claims (7)

A core material is sandwiched between the metal plate on the front surface side and the metal plate on the back surface side, and has joint end portions on one end side and the other end side, and the other ends on the joint end portions on the one end side of a plurality of the panels. A roof panel that is fixed to the purlin with the joined ends on the end side joined,
The joint end of the one end side of the roof panel is
A metal plate on the back side protruding from an end surface of the core member and formed in a bowl shape and fixed to the purlin member; a first engagement portion formed at an end of the fixed portion; A step formed by cutting off a corner on the surface side of the core, a second engagement portion formed by projecting the surface side metal plate covering the surface side of the step, and the step And a groove portion that opens to the side formed by the second engaging portion,
The joint end on the other end side of the roof panel is:
A first engaged portion that is formed of at least the metal plate on the front surface side and the core member and that overlaps the fixed portion, and is formed by the metal plate on the back surface side and engages with the first engagement portion. And a second engaged part that is inserted into the groove part and engages with the second engaging part.   2. The seal member capable of contacting the second engaged portion of the joint end on the other end is fixed to the groove of the joint end on the one end side. The roof panel as described. The metal plate on the front side and the metal plate on the back side have elasticity,
The engagement of the first engaged portion with respect to the first engaging portion and the engagement of the second engaged portion with respect to the second engaging portion are elastic engagements. The roof panel according to claim 1 or 2.   The exposed surface of the metal plate on the surface side is formed flat in a state where the fixing portion is fixed to the purlin and a plurality of the panels are joined. The roof panel as described in any one of. The plurality of roof panels according to any one of claims 1 to 4, wherein the metal plate on the back side is opposed to the roof fixing member, and the joining end on the other end side is joined to the joining end on the one end side. In a state where the roof panel is fixed to the roof fixing member,
Fixing the fixing portion to the roof fixing member with a screw member so that the fixing portion of the joining end portion on the one end side of the one roof panel is opposed to the roof fixing member,
Next, with respect to the joint end portion on the one end side of the fixed one roof panel, the joint end portion on the other end side of the second roof panel,
Engaging the first engaged portion with the first engaging portion;
Covering the screw member with the overlapping portion by overlapping the overlapping portion with the fixing portion,
The roof panel fixing structure, wherein the second engaged portion is inserted into the groove and joined by engaging the second engaged portion with the second engaged portion.   The roof panel fixing structure according to claim 5, wherein a reinforcing member is fitted into the fixing portion, and the fixing portion is fixed to the roof fixing member together with the reinforcing member with the screw member.   The roof panel fixing structure according to claim 5 or 6, wherein a caulking material is interposed between the second engaging portion and the second engaged portion.

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