JPH03183844A - Joint structure of roof panel - Google Patents

Abstract

PURPOSE:To improve working efficiency by forming a recess and a protrusion respectively on the joint end surfaces of planar materials of a pair of roof panels, forming zigzags on each joint surface of core materials of the panels and jointing the joint end surfaces and the joint surfaces respectively. CONSTITUTION:A recess 13 of a planar material 11a of a panel 10a is brought into engagement with a protrusion 14 of a planar material 11b of a roof panel 10b through a sealing material 16 to be bonded to each other. And zigzags 15a of a core material 12a fixed to the material 11a is engaged with zigzags 15b of a core material 12b fixed to the material 11b to be bonded to each other.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to the roof of a prefabricated house, etc., and specifically relates to a joint structure between roof panels when the roof is constructed of panels.

``Conventional Technology'' In industrialized houses such as single-family prefabricated houses, construction work on site is simplified by standardizing the structure, interior, and exterior components and processing them in a factory. This kind of simplification is also progressing on the roofs of prefabricated houses; for example, as shown in Figure 5, houses are made with multiple panels made in factories.
are aligned in one plane on site and joined together.
A roof 3 is formed by laying steel plates 2 on top of the roof.

By the way, in forming such a roof 3, the panel 1.
A structure shown in FIG. 6 is generally known as a bonding structure between 1. Here, the panel 1 includes a panel 4 forming a panel surface, and a core material 5 joined to the bottom end of the panel 4.
It consists of.

These panels 1. 1 are aligned so that the face members 4, 4 are in one plane, and further, the face members 4 and 4 are joined together via a sealing material, and the core members 5.
5 are glued together using a woodworking adhesive. In order to ensure the connection between these panels 1 and 1, a plurality of nails 6... are inserted diagonally, from the facing material 4 of one panel 1 to 2 of the other panel 1, as shown in FIG. It is struck in such a way as to reach the material 5, thereby forming the joint structure between the panels 1.1.

``Problem to be Solved by the Invention'' However, the above-mentioned joint structure is completed by nailing, but since it is a roof, such work naturally has to be done at a high place. Therefore, there are disadvantages in that it is somewhat dangerous, has poor workability, and impairs the shortening of construction time.

In addition, during construction, a sealant is applied to the joining surfaces of the panels in advance (for example, during manufacturing in a factory or on-site just before construction), and in that state, the panels are transported to a high place where the roof will be formed and joined. However, when transporting the panels, the sealing material on the joint surfaces of the panel panels adheres to the hands of the workers, which again impairs work efficiency.

``Means for Solving the Problems j'' Accordingly, in the roof panel joining structure of the present invention, a recess is formed in the joining end surface of one of the facing panels of a pair of roof panels that are joined to each other, and a recess is formed in the joining end surface of the other facing material. A convex portion that fits into the recess is formed, and the joint end faces are fitted and bonded via a sealing material, and an unevenness is formed on the joint surface of one of the core materials in these roof panels, and the other The above problem was solved by forming irregularities on the joint surface of the core material that engage with the irregularities of the joint surface of the core material, and engaging these joint surfaces with each other by the irregularities.

"Operation" According to the roof panel joining structure of the present invention, the concave part of the face material of one roof panel and the convex part of the face material of the other roof panel fit together, and the core material of one roof panel Due to the engagement of the unevenness of the roof panel with the unevenness of the core material of the other roof panel,
Sufficient bonding strength can be obtained and the water-stopping effect can also be enhanced.

"Embodiment" FIG. 1 is a diagram showing a first embodiment of the roof panel joining structure of the present invention, and shows an example in which it is applied to the formation of the roof 3 shown in FIG. 5. In FIG. 1, the symbol 10i
, lOb are roof panels, and these roof panels 10a
, lOb are face materials 11a forming panel surfaces, respectively.
llb and a core material 12a fixed to the side edges of these bottom surfaces.
, 12b. These roof panels 10a and fob are aligned with other roof panels (not shown) so that their facings 11a and llb are in one plane, and the facings 11a and llb are butted against each other. At the same time, the core materials 12A and 12b are joined together to form an integrated structure.

The facing materials 11a and 11b are made by laminating a plurality of rectangular plywood sheets together, and the top and side surfaces thereof are coated with a waterproofing material (not shown) in advance. A groove-shaped recess 13 having an arcuate cross section is formed in the end surface of the face material 11a on the side to be joined along the length direction of the face material 11i. One side material u
A convex portion 14 having an arcuate cross-section and protruding along the length direction of the face member 11b is formed on the end face of the side member b to be joined. The recess 13 and the projection 14 are formed so as to fit into each other, and the recess 13
When the convex portion 14 and the convex portion 14 are fitted together, the top surfaces of the face members 11a and llb are configured to be flush with each other. Furthermore, here,
Each face material 11a of the roof panels 10a and 10b,
A concave portion or a convex portion is also formed on the other end surface (not shown) of Ilb, which serves as a joint portion. and,
When these facing materials 11a, 11b are joined to other roof panels, their recesses or protrusions fit into the projections or recesses formed in the facing materials of the other roof panels.

The core members 12a' and 12b are both formed by framing square members into a rectangular profile, and are fixed to the face members lia and llb along their outer peripheries, respectively.

In addition, on the joining surfaces of these core materials 12a and 12b, that is, on the side where the recesses 13 or convex portions 14 of the face materials 11a and 11b are formed, unevenness 15i with a sharply toothed cross section, which is called finger joint processing, is formed. 15b are formed. These unevenness 15a, 15b are surface materials 11a, l.
V-shaped cross-sectional peaks and valleys are alternately arranged in parallel to the length direction of the joint end surface of lb. And unevenness 1
5i and the unevenness 15b have their peaks and valleys reversed in position as shown in FIG. The peaks of the unevenness 15a and the valleys of the unevenness 15b of the core material 12b engage with each other, and the valleys of the unevenness 15a and the peaks of the unevenness 15b engage with each other.

These roof panels lOa and fob are
The concave portion 13 of a and the convex portion 14 of the face material 11b are connected to the sealing material 16.
and the unevenness 15a of the core material 12a and the unevenness 15b of the core material 12b are engaged and bonded together via an adhesive, thereby forming a joining structure between the roof panels. Become something to do. Here, as the sealing material 16, a hot-melt resin that becomes adhesive when heated is preferably used, and urethane-based or silicone-based adhesives may also be used. Also, the unevenness 15a, 1
As the adhesive that can be used for bonding between the 5b, wood crucible bond, etc., which have been conventionally used for bonding between core materials, can be used.

To form such a joint structure, the roof panels 10a, 10b, etc., which have been made into panels in advance at a factory, etc. are transported to the construction site, and the sealing material 16 is applied to the recess 13 of the face material 11a of the roof panel 1ofL. Along with coating, the core material 1
Apply adhesive to the 15m unevenness of 2 people. Then, these facing materials 11a, llb... are carried onto a beam (not shown),
The top surfaces of the facing materials 11i, Ilb... are aligned so that they are flat, and the concave portions 13 of the facing materials 11a and the convex portions of the facing materials 11b are butt-fitted to each other via the sealing material 16. By joining together, the core materials 12i and 12b are joined, and the respective unevenness 15a and 15b of the core materials 12i and 12b are
are joined by butt-engaging through adhesive ml. Furthermore, other roof panels are sequentially joined in the same manner to form the panel surface of the roof, and then, for example, as shown in FIG. 5, shoulder boards 2 are laid on the panel surface to complete the roof. .

In the roof panel joining structure having such a configuration, the recess 13 of the face material 11a and the protrusion 14 of the face material 11b fit together, and the unevenness 15a of the core material 12a and the unevenness 15 of the core material 12b fit together.
Sufficient bonding strength can be obtained by the engagement between b and b, thereby eliminating the need for nailing as in the conventional case. In addition, when butting the face material 11a and the face material 11b,
Respective irregularities 15a and 15b of core materials 12A and 12ti
Since the abutment position of the concave portion 13 and the convex portion 14 is determined by engaging the two panels, it becomes easier to join the panels compared to the conventional method, and the construction time can therefore be shortened. Furthermore, since the recess 13 and the projection 14 are fitted together via the sealing material 16, and the projections and depressions 15a and 15b are engaged via an adhesive, the water-stopping effect at the joint is enhanced, and the roof It is possible to reliably prevent rain leakage. Furthermore, during construction, if the sealing material 16 is applied to the recesses of the facing material 11i and the adhesive is applied to the valleys of the unevenness 15a, 15b of the core materials 12a, 12b, the sealing material 16 etc. can be applied to the roof panel. lOa, job...
Since it is painted on the inside of the roof panel 1O
To prevent sealing material 16, etc. from adhering to a worker's hands when carrying vh, lob, etc. onto a beam and arranging them, thereby preventing delays in construction caused by this. I can do it.

FIG. 2 is a diagram showing a second embodiment of the joining structure of the present invention. In this figure, the same components as those shown in FIG. 1 are given the same reference numerals and their explanations will be omitted.

The joint structure shown in FIG. 2 differs from that shown in FIG.
These are the shape of the concave portion a and the shape of the convex portion of the face material 11b. Second
In the figure, the facings 11a, l of the roof panels IOA, lOb.
lb is formed by pasting together three sheets of plywood 17. In the face material 11^, the end face of the central plywood 17a enters inside the end faces of the other plywood boards 17, 17 at the joining surface, thereby forming a recess 18. Further, in the face material 11b, the end face of the central plywood 17b protrudes outward from the end faces of the other plywood 17, 17 on the joint surface, thereby forming a convex portion 19. Then, the roof panel IOA and the roof panel lOb have a sealing material 1 in the recess 18 of the face material 11a.
By fitting and joining the convex portions 19 of the face material 11b via 6, and engaging the concave and convex portions 15a of the core material 12a and the concave and convex portions 15b of the core material 12b via adhesive M,
A joining structure of the present invention is formed.

In such a joining structure, the surface material lea.

When manufacturing the tab, the concave portion 18 or the convex portion 19 can be easily formed by simply changing the dimensions or the position of the plywood 17a (17b) sandwiched in the center, thereby making it possible to form the concave portion 18 or the convex portion 19. Manufacturing costs can be kept low.

FIG. 3 is a diagram showing the third embodiment w1N of the joining structure of the present invention, and FIG. 4 is a diagram showing the fourth embodiment. The joint structure shown in FIGS. 3 and 4 differs from that shown in FIG. 1 in the positional relationship between the face material and the core material in the roof panel.

In the joint structure shown in FIG.
3, and the roof panel 20b is fixed to the panel 11a with its core material 12b recessed from the convex portion 14 that forms the joint end surface of the panel 11b. It has become. Here, each of the roof panels 20a, 20b has an unevenness 1 of the core material 12a when the concave portion 13 and the convex portion 14 are joined via the sealing material 16.
The fixing position of the face material 20a (20b) and the core material 12m (12b) is determined so that the surface material 5a and the unevenness 15b of the core material 12b engage with each other.

Further, the joining structure shown in FIG. 4 has a structure opposite to that shown in FIG. 3. That is, the roof panel 21a is
A recess 13 whose core material 12a becomes the joint end surface of the face material 11a.
The roof panel 21b is fixed to the panel 11m in a more retracted state, and the roof panel 21b is fixed with its core material 12b protruding from the convex portion i4 which becomes the joint end surface of the panel flb. ing. Here, each roof panel 21i, 21b is the roof panel 20a, 20b.
Similarly, when the concave portion 13 and the convex portion 14 are joined via the sealing material 16, the concave and convex portions 15a of the core material 12a and the convex portions 15a of the core material 12
the surface material 21a so that it engages with the unevenness 15b of b.
(21b) and the fixing position of the core material 12a (12ti) is determined.

In the joint structure having such a configuration, as shown by the two-dot chain line in FIG. 3 or FIG. By placing it on the core material 12 of the roof panel 2G (21) and abutting the concave portion 13 and the convex portion 14 as they are, the joining position can be easily determined.

"Effect of the Invention J As explained above, the roof panel joining structure of the present invention is such that the concave part of one face material and the convex part of the other face material fit together, and the concave part and convex part of one core material fit together, and the convex part of the other face material fits together. Since the unevenness of the core material engages, it has sufficient joint strength and eliminates the need for nailing as in the past, which simplifies the work and shortens the construction time.Also. When butting the facing materials together, by engaging the respective irregularities of both core materials, it is possible to easily position the butts of the concave and convex portions of the facing materials. Joining becomes easier and work can be done more quickly.Furthermore,
Since the concave portion and the convex portion are fitted with each other through the sealing material, and the concave and convex portions are engaged with each other, the water-stopping effect at the joint is enhanced, and rain leakage from the roof is reliably prevented. In addition, if the sealant is applied to the recesses of the panel during construction, the sealant will be applied to the inside of the roof panel, so when carrying the roof panel onto the beam and aligning them, This prevents the sealant from adhering to the hands of the worker, thereby preventing delays in construction caused by this.

[Brief explanation of drawings]

FIG. 1 is a diagram showing a first embodiment of the roof panel joining structure of the present invention, and FIG. 2, FIG. 3, and FIG. Second. Third. FIG. 5 is a side sectional view showing the schematic structure of the fourth embodiment, FIG. 5 is a perspective view showing the schematic structure of the roof, and FIG. 6 is a side sectional view showing an example of a conventional roof panel joining structure. 10a, fob, 20a, 20b11a, ll
b - face material, 12a, 12b - core material, 13.18... recessed part, 14.19... convex part, 15a, 15b - unevenness, 16... sealing material. , 21a, 21b - roof panel;

Claims (1)

[Claims] A plurality of roof panels each having a facing material forming a panel surface and a core material provided at the end of one of the panels are arranged so that the facing materials are in one plane. A joint structure in which the facing materials are joined to each other and the core materials are joined to each other, and in a pair of roof panels that are joined to each other, a recess is formed in the joint end surface of the facing material of one roof panel, and the other A convex portion that fits into the recess is formed on the joining end surface of the facing materials of the roof panels, and these joining end surfaces are fitted and bonded together via a sealing material, and one roof panel in these roof panels An unevenness is formed on the bonding surface of the core material of the other roof panel, and an unevenness that engages with the unevenness of the bonding surface of the core material is formed on the bonding surface of the core material of the other roof panel, and these bonding surfaces are engaged with each other due to the unevenness. A roof panel joint structure characterized by being joined together.