JP2023179054A - Building material panel and joint structure thereof - Google Patents

Abstract

To provide a building material panel and a joint structure thereof which improve a water cutoff effect more than the conventional one.SOLUTION: A first joining end part 30 has a first projection part 31 and a second projection part 32 which are arranged at an interval in the panel thickness direction and project in the joining direction on the side of a second joining end part 40, and a first groove part 33 between the first projection part 31 and the second projection part 32. The second joining end part 40 has a second groove part 42 to which the first projection part 31 is fitted, a third groove part 43 to which the second projection part 32 is fitted, a third projection part 44 to be fitted to the first groove part 33, a first cover part 45 covering the first projection part 31 and continued to the surface of a panel 1, and a second cover part 46 covering the second projection part 32 and continued to the rear surface of the panel 1. The first projection part 31 and the second projection part 32 are arranged so as to be shifted from each other in the joining direction, and the projection length of the second projection part 32 is longer than the projection length of the first projection part 31.SELECTED DRAWING: Figure 4

Description

The present invention relates to building material panels and their joining structures.

Roofs and outer walls of factories, warehouses, etc. are sometimes easily constructed by joining multiple panels together. For example, a metal sandwich panel in which a heat-insulating core material is sandwiched between a pair of metal plates has excellent sealing properties and heat-insulating properties, and is also easy to construct.

As a structure for joining such panels, there is a known structure in which a groove-shaped recess formed at the joining end on one end fits into a convex part formed at the joining end on the other end (Patent Document 1st prize). Additionally, a method is generally adopted in which a water-stopping material made of a metamorphosed silicon material or the like is embedded at the boundary of the joint.

Japanese Patent Application Publication No. 2010-168820

According to the conventional panel joint structure, there is a risk that rainwater may enter the joints of the panels and reach the inner space, for example, when there is strong wind and rain, and there is room for improvement. The present invention has been made in view of the above-mentioned circumstances, and its main purpose is to provide a building material panel and its joining structure that can improve the water-stopping effect compared to conventional panels.

(1) The joining structure of the building material panel of the present invention is such that the first joining end provided at one end of the building material panel, which has a sandwich structure in which a core material is sandwiched between two face materials, is adjacent to each other. A joining structure in which the building material panels are joined together by fitting into a second joining end provided at the other end of the building material panel, wherein the first joining end is spaced apart from each other in the panel thickness direction. a first protrusion and a second protrusion that are arranged at a distance from each other and project in the joining direction on the side of the second joining end; and the first protrusion and the second protrusion. a first groove between the two, and the second joint end has a second groove into which the first protrusion fits, and a third groove into which the second protrusion fits. a third protrusion that fits into the first groove, a first cover part that covers the first protrusion and continues to one side of the building material panel, and the second protrusion. a second cover part that covers the first protrusion part and continues to the other surface of the building material panel, and the first protrusion part and the second protrusion part are arranged offset from each other in the joining direction. In addition, the second protrusion has a longer protrusion length than the first protrusion.

(2) In the joining structure of building material panels of the present invention, the first cover part and the second cover part are arranged offset from each other in the joining direction, and a part of each This includes forms in which the panels overlap each other in the thickness direction.

(3) In the building material panel of the present invention, it is preferable that the length along the joining direction from the tip of the first cover part to the tip of the first protrusion is 20 mm or more and 40 mm or less.

(4) In the joining structure of building material panels of the present invention, the length along the joining direction from the bottom of the first groove to the tip of the second protrusion is 20 mm or more and 40 mm or less. preferable.

(5) In the joint structure of building material panels of the present invention, between the tip of the first protrusion and the bottom of the second groove, the tip of the second protrusion and the bottom of the third groove, It is preferable that a water stop material is disposed at at least one of three locations between the tip of the third protrusion and the bottom of the first groove.

(6) In the building material panel joining structure of the present invention, the headed screw member penetrates from the one surface side in the panel thickness direction at the first joining end and fixes the building material panel to the fixing member. The head of the head-attached screw member is covered with the first cover part while in contact with the one surface side of one of the face materials, and the head of the head of the face material is arranged. The head placement area is preferably flat.

(7) The building material panel of the present invention is the building material panel described in any one of (1) to (6) above.

Advantageous Effects of Invention According to the present invention, it is possible to provide a building material panel and a joint structure thereof that have a water-stopping effect that is more improved than before.

1 is a partial perspective view schematically showing an outer wall to which a building material panel joining structure according to an embodiment of the present invention is applied. FIG. 1 is a longitudinal cross-sectional view of a building material panel of one embodiment. FIG. 2 is a longitudinal cross-sectional view showing upper and lower joint ends of a building material panel according to one embodiment. FIG. 1 is a longitudinal cross-sectional view showing a joint structure of building material panels according to one embodiment.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a part of an outer wall 5 constructed by joining a plurality of building material panels (hereinafter simply referred to as panels) 1 according to an embodiment. Panel 1 has a rectangular shape. The panel 1 is installed in a horizontally extending state with its longitudinal direction extending in the horizontal direction. FIG. 2 shows a longitudinal section of the panel 1 in a state where it is installed as an outer wall 5. As shown in FIG. FIG. 3 is a longitudinal sectional view showing the upper and lower joint ends 30 and 40 of a pair of panels 1 that are joined in the vertical direction. FIG. 4 is a longitudinal sectional view showing a state in which the joint ends 30 and 40 are joined. 1 to 4 show the outdoor X side of the outer wall 5 and the indoor Y side of the outer wall 5, respectively.

As shown in FIG. 2, the panel 1 is a metal sandwich panel in which a core material 13 of a predetermined thickness is sandwiched between a front surface material 11 and a back surface material 12 made of thin metal plates. The front surface material 11 and the back surface material 12 are each bonded to both surfaces of the core material 13 with an adhesive. The adhesive is selected depending on the materials of the front surface material 11, back surface material 12, and core material 13, and for example, a resin adhesive such as a urethane adhesive or an epoxy adhesive is used. In the panel 1, the front side member 11 is arranged on the outdoor X side, and the back side member 12 is arranged on the indoor Y side. Below, the outdoor X side may be referred to as the front side, and the indoor Y side may be referred to as the back side.

The materials of the front side material 11 and the back side material 12 are not limited, but may be, for example, various colored steel plates, fluorine steel plates, PVC steel plates, galvalume steel plates (registered trademark), stainless steel plates such as SUS, etc., and have a thickness of, for example, 0. A thin plate having an elasticity of about .35 to 1.2 mm is used. For the core material 13, a lightweight resin foam material such as polystyrene is used, but the material is not limited thereto. The core material 13 in this case is pre-molded, and the molded product is placed between each of the facing materials 11 and 12 and adhered to the inner surfaces of these facing materials 11 and 12.

The overall dimensions of the panel 1 are arbitrary and correspond to the outer wall 5 to be constructed. Dimensions (vertical direction): about 400 to 1200 mm, thickness: about 25 to 300 mm.

The joining ends 30, 40 of the panel 1 are an upper first joining end 30 and a lower second joining end 40.

As shown in FIG. 3, the first joint end 30 connects the first protrusion 31 and the second protrusion 32, and the first joint end 30 between the first protrusion 31 and the second protrusion 32. It has a groove part 33. The first protrusion 31 and the second protrusion 32 are protrusions that extend along the longitudinal direction of the first joint end 30 (the front and back directions in FIG. 3). The first protrusion 31 and the second protrusion 32 are arranged at intervals in the panel thickness direction (left-right direction in FIG. 3). The first protrusion 31 is arranged on the front side (outdoor X side) from the center of the thickness of the panel, and the second protrusion 32 is arranged on the back side (indoor Y side) of the center of the thickness of the panel 1. There is. The first protrusion 31 and the second protrusion 32 each protrude upward, that is, in the joining direction toward the second joining end 40 .

A front step 39 is formed on the front surface of the first joint end 30 to reduce the thickness. The front step portion 39 includes a front sloped surface 39a that slopes inward toward the joining direction, that is, toward the center of the panel thickness, and a front side flat surface that extends from the front sloped surface 39a toward the joining direction and continues to the first protrusion 31. It is formed by a surface (head placement area) 39b. The surface of the front step portion 39 is formed of the front side material 11. The front surface material 11 forming the front flat surface 39b covers the core material 13.

The first protruding portion 31 continuous to the front flat surface 39b is formed by the front side member 11 extending in the joining direction, then being bent inward and folded back by 180 degrees to the side opposite to the joining direction. Further, the front side member 11 extends inward from the first protrusion 31 and covers the end face of the core member 13. The first protrusion 31 is formed by the surface material 11 that overlaps in double. The bottom portion 33a of the first groove portion 33 is formed by the end portion of the front side member 11.

A back side step 34 is formed on the back side of the first joint end 30 to reduce the thickness. The back side stepped portion 34 is formed by a back side slope 34a that slopes inward toward the joining direction, and a second protrusion 32 that is continuous with the back side slope 34a. The back side surface of the back side stepped portion 34 is formed of the back side material 12.

The second protrusion 32 is formed by a back side material 12 that extends in the joining direction continuously from the back side inclined surface 34a and then bends inward at 90 degrees, and a core material 13 covered with this back side surface material 12. There is. The inner surface 30c of the core material 13 of the second protrusion 32 is exposed.

The first protrusion 31 and the second protrusion 32 are arranged offset from each other in the joining direction. In terms of the protrusion length in the joining direction, the length of the second protrusion 32 protruding in the joining direction is longer than the protrusion length of the first protrusion 31. Furthermore, in terms of thickness, the thickness of the second protrusion 32 is greater than the thickness of the first protrusion 31.

As shown in FIG. 3, the second joint end 40 has a structure that fits into the first joint end 30 in a concave-convex manner. That is, the second joint end 40 is connected to the second groove 42 into which the first protrusion 31 fits, the third groove 43 into which the second protrusion 32 fits, and the first groove 33. It has a third protrusion 44 that fits. Further, the second joint end portion 40 has a first cover portion 45 on the front side and a second cover portion 46 on the back side. The third protruding portion 44, the first cover portion 45, and the second cover portion 46 are convex stripes that extend along the longitudinal direction of the second joint end portion 40 (the front and back directions in FIG. 3). .

The second groove portion 42 is formed between the first cover portion 45 and the third protrusion portion 44 . At the second joint end 40, the front side member 11 extends for a predetermined length in the joining direction on the first joint end 30 side, is bent inward, and is further folded back 180 degrees to form a first cover part 45. has been done. The front side member 11 forming the first cover portion 45 continuously forms the second groove portion 42 and the third protrusion portion 44 . The bottom portion 42a of the second groove portion 42 is formed by the front side member 11. The third protrusion 44 is formed by extending the front side member 11 from the bottom 42a of the second groove 42 in the joining direction and then folding it back 180°. A tapered surface 44a is formed on the front side of the third protrusion 44. The first cover portion 45 is continuous with the surface of the panel 1.

At the second joining end portion 40, the back side member 12 extends for a predetermined length in the joining direction, is bent inward, and is further folded back 180° to form a second cover portion 46. A bulge 46a is formed inside the tip of the second cover part 46. The third groove portion 43 is arranged between the second cover portion 46 and the third protrusion portion 44 . The third groove portion 43 is formed surrounded by the second cover portion 46 and the exposed inner surface 30d of the core material 13, and its bottom portion 43a is mainly formed of the back surface material 12. The second cover portion 46 is continuous with the back surface of the panel 1.

The second groove portion 42 and the third groove portion 43 are offset from each other in the joining direction, and are formed such that the third groove portion 43 is located above the second groove portion 42. Similarly, the first cover part 45 and the second cover part 46 are deviated from each other in the joining direction, and are formed so that the second cover part 46 is located above the first cover. has been done. Although the first cover part 45 and the second cover part 46 are shifted from each other in the joining direction, a part of each, that is, an upper part of the first cover part 45 and a lower end of the second cover part 46 overlap each other in the panel thickness direction.

FIG. 4 shows a state in which the first joint end 30 and the second joint end 40 are joined to each other. As shown in FIG. 4, the outer wall 5 shown in FIG. The second joint end 40 on the lower side of the panel 1 installed above is fitted into the joint end 30. By repeating this construction and assembling a plurality of panels 1 upward, the outer wall 5 is constructed.

The screw member 50 passes through the first joint end 30 from the front side step portion 39 to the back side, and is screwed into the horizontal furring 55 and fastened. The head 50a of the screw member 50 is fastened using the front flat surface 39b of the front stepped portion 39 as a seat surface. Compared to a configuration in which the seat surface is the bottom of the recess, by arranging and fastening the head 50a of the screw member 50 on the front flat surface 39b in this way, the effort required to process the front side member 11 is reduced. It is possible to improve productivity and reduce costs.

In the state where the first joint end 30 and the second joint end 40 are joined, the first protrusion 31 of the first joint end 30 is connected to the second groove 42 of the second joint end 40. The third protrusion 44 of the second joint end 40 fits into the first groove 33 of the first joint end 30 . When fitting in this way, the tapered surface 44a of the third protrusion 44 of the second joint end 40 is fitted while elastically abutting the tip of the first protrusion 31. As a result, in the fitted state, the third protrusion 44 elastically abuts and closely contacts the inner surface of the first protrusion 31, resulting in an engaged state. The first cover portion 45 of the second joint end portion 40 is in a state of being accommodated in the front step portion 39 of the first joint end portion 30 . This first cover portion 45 covers the first protrusion 31 and the head 50a of the screw member 50. As a result, the head 50a of the screw member 50 is not exposed, and the appearance from the outdoor X side becomes flat.

Further, in the state where the first joint end 30 and the second joint end 40 are joined, the second protrusion 32 of the first joint end 30 is connected to the third joint end 40 of the second joint end 40 . Fits into the groove 43. When fitted in this way, the bulge 46a of the second cover part 46 elastically slides against the surface of the back side step 34, fits into the back side step 34, and comes into contact with the back side slope 34a. As a result, the second cover portion 46 elastically abuts and comes into close contact with the root portion of the second protrusion 32, and is in an engaged state.

Here, in this embodiment, the first water stop material 61 is arranged between the tip of the first protrusion 31 and the bottom 42a of the second groove 42. Further, a second water stop material 62 is arranged between the tip of the second protrusion 32 and the bottom 43a of the third groove 43. The water stop materials 61 and 62 are for filling gaps to ensure water stop properties and airtightness, and are made of generally known materials such as silicone sealants and butyl rubber. Note that a waterproof material may also be placed between the tip of the third protrusion 44 and the bottom 33a of the first groove 33.

As shown in FIG. 6, from the tip 45b of the first cover part 45 to the tip 31b of the first protrusion 31 in a state where the first joint end 30 and the second joint end 40 are joined to each other. It is preferable that the length L1 along the joining direction is 20 mm or more and 40 mm or less. Moreover, it is preferable that the length L2 along the joining direction from the bottom 33a of the first groove 33 to the tip 32b of the second protrusion 32 is 20 mm or more and 40 mm or less.

In this embodiment, when rainwater enters the horizontally extending joint between the first joint end 30 and the second joint end 40 from the outdoor X side, the first cover part 45 on the upper side Rainwater enters through the gap between the tip 45b and the front inclined surface 39a of the lower front step 39. Here, in the case of exposure to strong wind and rain, rainwater rises through the gap between the first cover part 45 and the first protrusion part 31 under the pressure of the wind and rain. At this time, by ensuring the length L1, rainwater is unlikely to rise to the tip 31b of the first protrusion 31. Even if it rises, the first waterproof material 61 prevents rainwater from entering. This makes it difficult for rainwater to seep into the indoor Y side.

In the case where the first water stop material 61 is not arranged, or when the first water stop material 61 has deteriorated and its water stop performance has decreased, it is assumed that rainwater exceeds the tip 31b of the first protrusion 31. In some cases, rainwater may enter the first groove portion 33. However, when rainwater intrudes into the first groove 33, the rainwater first accumulates at the bottom 33a of the first groove 33, and is unlikely to infiltrate into the indoor Y side. Furthermore, by ensuring the length L2, rainwater is unlikely to rise to the tip 32b of the second protrusion 32. Even if it rises, the second waterproof material 62 prevents rainwater from entering. This makes it difficult for rainwater to seep into the indoor Y side.

The joining structure of the panel 1 of the present embodiment described above is provided at one end of the panel 1 having a sandwich structure in which a core material 13 is sandwiched between two face materials, that is, a front surface material 11 and a back surface material 12. This is a joining structure in which the panels 1 are joined together by fitting the first joining end 30 provided at the other end of the adjacent panels 1 to the second joining end 40 provided at the other end of the adjacent panels 1. The joint end 30 includes a first protrusion 31 and a second protrusion 32 that are arranged at intervals in the panel thickness direction and that respectively protrude in the joining direction on the side of the second joint end 40; It has a first groove 33 between the first protrusion 31 and the second protrusion 32, and the second joint end 40 has a second groove 33 between the first protrusion 31 and the second protrusion 32. The panel 1 is formed by covering the groove 42, the third groove 43 into which the second projection 32 fits, the third projection 44 which fits into the first groove 33, and the first projection 31. It has a first cover part 45 which is continuous to the front surface which is one surface, and a second cover part 46 which covers the second protrusion part 32 and which is continuous to the back surface which is the other surface of the panel 1. The first protrusion 31 and the second protrusion 32 are arranged offset from each other in the joining direction, and the protrusion length of the second protrusion 32 is longer than the protrusion length of the first protrusion 31. is longer.

The panel 1 of this embodiment has the first joint end 30 on the upper side and the second joint end 40 on the lower side, the front side material 11 on the outdoor X side, and the back side material 12 on the indoor side. The outer wall 5 can be constructed by arranging them on the Y side and joining the joining ends 30 and 40 to each other. In that case, the second protrusion 32 is arranged above the first protrusion 31 in the joining direction, and the second protrusion 32 is located higher than the first protrusion 31 in terms of height. . As a result, even if rainwater from the outdoor X side enters the joint at the joint end, the first protrusion 31 and the second protrusion 32 effectively prevent the rainwater from penetrating into the indoor Y side. can be prevented.

In this embodiment, the first cover part 45 and the second cover part 46 are arranged offset from each other in the joining direction, and a part of each, that is, an upper part of the first cover part 45 The lower ends of the second cover portions 46 overlap each other in the panel thickness direction.

Thereby, the tip of the second cover part 46 on the indoor Y side can be positioned higher than the tip of the first cover part 45 on the outdoor X side. Therefore, the path of the joints can be directed upward as a whole from the outdoor X side to the indoor Y side, resulting in a structure that is difficult for rainwater to penetrate.

In this embodiment, the length from the tip 45b of the first cover part 45 to the tip 31b of the first protrusion 31 along the joining direction is preferably 20 mm or more and 40 mm or less.

Thereby, the first protrusion 31 effectively prevents rainwater from entering, and it is possible to suppress rainwater from penetrating into the indoor Y side.

In this embodiment, the length along the joining direction from the bottom 33a of the first groove 33 to the tip 32b of the second protrusion 32 is preferably 20 mm or more and 40 mm or less.

Thereby, the second protrusion 32 effectively prevents rainwater from entering, and it is possible to further suppress rainwater from penetrating into the indoor Y side.

In this embodiment, the first water stop material 61 is arranged between the tip 31b of the first protrusion 31 and the bottom 42a of the second groove 42, and A second water stop material 62 is disposed between the third groove portion 43 and the bottom portion 43a.

Thereby, the effect of preventing rainwater from penetrating can be further enhanced by each of the waterproof materials 61 and 62.

In this embodiment, a screw member 50 with a head 50a is provided which penetrates the first joint end 30 in the panel thickness direction from the front surface side and fixes the panel 1 to the horizontal rim 55. 50a is covered with the first cover portion 45 while in contact with the surface side of the front side member 11, and the front side flat surface 39b of the front step portion 39 on which the head portion 50a is arranged is flat.

As a result, the head 50a of the screw member 50 is not exposed, and the appearance from the outdoor X side becomes flat. In addition, the effort required to process the surface material 11 is reduced, and it is possible to improve productivity and reduce costs.

1 Building material panel 11 Surface material (face material)
12 Back side material (face material)
13 Core material 30 First joint end 31 First protrusion 32 Second protrusion 32b Tip of second protrusion 33 First groove 33a Bottom of first groove 39b Front flat surface (head arrangement region)
40 Second joint end 42 Second groove 42a Bottom of second groove 43 Third groove 44 Third protrusion 45 First cover 45b Tip of first cover 46 Second cover 50 Screw member with head 50a Head 55 Horizontal body rim (fixing member)

Claims (7)

A first joint end provided at one end of a building material panel having a sandwich structure in which a core material is sandwiched between two face materials is connected to a second joint end provided at the other end of the adjacent building material panel. A joining structure that joins the building material panels together by fitting into the joining ends,
The first joint end has a first protrusion and a second protrusion that are arranged at intervals in the panel thickness direction and that respectively protrude in the joining direction on the side of the second joint end. , a first groove between the first protrusion and the second protrusion,
The second joint end fits into a second groove into which the first protrusion fits, a third groove into which the second protrusion fits, and the first groove. a third protrusion, a first cover part that covers the first protrusion and is continuous to one side of the building material panel, and a first cover part that covers the second protrusion and is continuous to the other side of the building material panel. a second cover portion,
The first protrusion and the second protrusion are arranged offset from each other in the joining direction, and the protrusion length of the second protrusion is longer than the protrusion length of the first protrusion. A joint structure of building material panels whose sides are longer. The first cover part and the second cover part are arranged offset from each other in the joining direction, and each partially overlaps with the other in the panel thickness direction. Joint structure of building material panels. The joining structure for building material panels according to claim 1 or 2, wherein the length along the joining direction from the tip of the first cover part to the tip of the first protrusion is 20 mm or more and 40 mm or less. The joining structure for building material panels according to claim 1, wherein the length along the joining direction from the bottom of the first groove to the tip of the second protrusion is 20 mm or more and 40 mm or less. between the tip of the first protrusion and the bottom of the second groove; between the tip of the second protrusion and the bottom of the third groove; between the tip of the third protrusion and the bottom of the third groove; 2. The building material panel joining structure according to claim 1, wherein a water-stopping material is disposed at at least one of the three locations between the first groove and the bottom of the first groove. a screw member with a head that penetrates from the one surface side in the panel thickness direction of the first joint end and fixes the building material panel to the fixing member;
The head of the head-attached screw member is covered with the first cover part in a state where it is in contact with the side of the one surface of one of the face materials, and the head of the head of the face material is arranged. The joining structure for building material panels according to claim 1, wherein the arrangement area is flat. The building material panel according to any one of claims 1 to 6.