JP5941516B2 - Roof plate material and roof structure - Google Patents

Roof plate material and roof structure Download PDF

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JP5941516B2
JP5941516B2 JP2014219797A JP2014219797A JP5941516B2 JP 5941516 B2 JP5941516 B2 JP 5941516B2 JP 2014219797 A JP2014219797 A JP 2014219797A JP 2014219797 A JP2014219797 A JP 2014219797A JP 5941516 B2 JP5941516 B2 JP 5941516B2
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roof
groove
roof plate
connecting ridge
vertical wall
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一郎 大本
一郎 大本
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一郎 大本
一郎 大本
椿 純一
椿 純一
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この発明は、幅方向両端側に、隣り合う屋根板材と連結するための構造を備えた屋根板材と、この屋根板材を用いた屋根構造に関するものである。   The present invention relates to a roof plate material provided with a structure for connecting to adjacent roof plate materials on both ends in the width direction, and a roof structure using the roof plate material.

従来、金属製の屋根板材を屋根に葺くには、タイトフレームと呼ばれる支持金物を屋根構造材(屋根骨格など)に固定し、このタイトフレームを介して屋根板材を取付固定している。しかし、このような屋根構造は、タイトフレームの施工に手間と時間がかかり、材料コストも嵩むため、全体としてコスト高となる。
また、特許文献1には、隣り合う屋根板材を屋根構造材(屋根骨格など)に固定した支持部材を介して連結し、この連結部をキャップ材で覆う屋根構造が示されているが、この屋根構造も、屋根構造材に支持部材を設ける必要があり、また、屋根板材や支持部材のほかに連結部を覆うキャップ材が必要であり、材料コストや施工コストが高くなる。
Conventionally, in order to spread a metal roof plate material on a roof, a support metal called a tight frame is fixed to a roof structure material (such as a roof skeleton), and the roof plate material is attached and fixed via the tight frame. However, such a roof structure is costly as a whole because it takes time and labor to construct a tight frame and the material cost increases.
Patent Document 1 discloses a roof structure in which adjacent roof plate materials are connected to each other via a support member fixed to a roof structure material (such as a roof skeleton), and this connection portion is covered with a cap material. Also for the roof structure, it is necessary to provide a support member on the roof structure material, and in addition to the roof plate material and the support member, a cap material that covers the connecting portion is necessary, which increases the material cost and the construction cost.

一方、特許文献2には、タイトフレームや特許文献1のような支持部材を用いることなく、屋根板材を屋根構造材(屋根骨格など)に直に取付固定するとともに、隣り合う屋根板材どうしを嵌合連結するようにした屋根構造が示されている。この屋根構造は、屋根板材の幅方向一端側に嵌合部(頭部が膨出した凸条部)を、他端側にキャップ部(頭部が膨出した凸条部)をそれぞれ立ち上がり形成し、隣り合う屋根板材を、一方の屋根板材の嵌合部に他方の屋根板材のキャップ部を嵌合し、キャップ部の端部(曲成部)を嵌合部の下部側に形成された段部(係止部)に係合させることで、連結している。   On the other hand, Patent Document 2 directly attaches and fixes a roof plate material to a roof structure material (such as a roof skeleton) without using a support member such as a tight frame or Patent Document 1, and fits adjacent roof plate materials together. The roof structure is shown to be joined together. In this roof structure, a fitting part (a protruding ridge with a bulged head) is formed on one end of the roof plate in the width direction, and a cap part (a protruding ridge with a bulged head) is formed on the other end. Then, the adjacent roof plate members were fitted to the fitting portion of one roof plate material with the cap portion of the other roof plate material, and the end portion (curved portion) of the cap portion was formed on the lower side of the fitting portion. It connects by engaging with a step part (locking part).

特開2004−316384号公報JP 2004-316384 A 実用新案登録第3113787号公報Utility Model Registration No. 3113787

特許文献2に示される屋根構造は、タイトフレームを用いる従来の屋根構造や特許文献1に示される屋根構造に比べて、タイトフレームや支持部材を用いる必要がなく、施工も容易であるため、材料コストや施工コストを低く抑えることができる利点がある。しかし、屋根板材どうしの連結部の防水性、風の吹き上げに対する連結強度、雪の荷重に対する強度などが必ずしも十分とは言えない。   Since the roof structure shown in Patent Document 2 does not require the use of a tight frame or a support member and is easy to construct compared to the conventional roof structure using a tight frame and the roof structure shown in Patent Document 1, the material is easy to construct. There is an advantage that the cost and construction cost can be kept low. However, the waterproofness of the connecting portions of the roof plate materials, the connection strength against wind blowing, the strength against snow load, etc. are not necessarily sufficient.

したがって本発明の目的は、以上のような従来技術の課題を解決し、タイトフレームや支持部材を用いることなく、少ない手間で簡単に施工できる屋根板材であって、屋根板材どうしの連結部において、優れた防水性能と風の吹き上げに対する高い連結強度が得られるとともに、雪などの荷重に耐え得る高い強度(特に、長手方向のたわみに対する高い強度)が得られ、しかも構造が簡単で製造も容易な屋根板材を提供することにある。また、本発明の他の目的は、そのような屋根板材を用いた屋根構造を提供することにある。   Therefore, the object of the present invention is to solve the problems of the prior art as described above, and is a roof plate material that can be easily constructed with less effort without using a tight frame or a support member, and in the connecting portion between the roof plate materials, Excellent waterproof performance and high connection strength against wind blowing, high strength that can withstand loads such as snow (especially high strength against longitudinal deflection), simple structure and easy manufacture It is to provide roofing sheet materials. Another object of the present invention is to provide a roof structure using such a roof plate material.

上記課題を解決するための本発明の要旨は以下のとおりである。
[1]金属板を成形加工した屋根板材であって、幅方向両端側に、隣り合う屋根板材と連結するための構造を備えた屋根板材において、
幅方向一端側には、屋根板材本体部(1)から立ち上がり形成された第1の連結用凸条部(2)と、該連結用凸条部(2)の外側に連成された取付固定用板部(4)を有するとともに、幅方向他端側には、屋根板材本体部(1)から立ち上がり形成された第2の連結用凸条部(3)を有し、
連結用凸条部(2)は、頂部(20)で隔てられた屋根板材本体部(1)側に湾曲状部(21)が形成されるとともに、取付固定用板部(4)側に縦壁部(22)が形成され、該縦壁部(22)は、上部側が取付固定用板部(4)側に傾いた傾斜を有するとともに、該縦壁部(22)の下端に前記取付固定用板部(4)が連成され、湾曲状部(21)の下部途中または下端には、溝開口から深さ方向に向かって上向きに傾斜した溝部(23)が形成され、
連結用凸条部(3)は、その本体部(30)が湾曲状に構成されるとともに、該本体部(30)の自由端側に、本体部(30)の内側に延出する溝嵌合フック部(31)が連成され、該溝嵌合フック部(31)は、先端側部分(310)が上側にU字状に折り返され、隣り合う屋根板材の連結用凸条部(2)の溝部(23)に嵌合可能な形状に構成され、
溝嵌合フック部(31)を、隣り合う屋根板材の連結用凸条部(2)の溝部(23)に嵌合した状態で、溝部(23)内に、該溝部(23)の内面と溝嵌合フック部(31)とで囲まれる空間部(5)が形成されるようにしたことを特徴とする屋根板材。
The gist of the present invention for solving the above problems is as follows.
[1] A roof plate material formed by processing a metal plate, and having a structure for connecting to adjacent roof plate materials on both ends in the width direction,
On the one end side in the width direction, a first connecting ridge (2) rising from the roof plate body main body (1), and an attachment fixing coupled to the outside of the connecting ridge (2). And the second connecting ridge (3) formed rising from the roof plate main body (1) on the other end in the width direction.
The connecting ridge (2) is formed with a curved portion (21) on the roof plate body (1) side separated by the top (20), and vertically on the mounting and fixing plate (4) side. A wall portion (22) is formed, and the vertical wall portion (22) has an inclination whose upper side is inclined toward the mounting and fixing plate portion (4) side, and the mounting and fixing to the lower end of the vertical wall portion (22). A plate part (4) is coupled, and a groove part (23) inclined upward in the depth direction from the groove opening is formed in the lower middle or lower end of the curved part (21),
The connecting ridge (3) has a main body (30) configured in a curved shape, and a groove fits on the free end side of the main body (30) and extends inside the main body (30). The hook portion (31) is coupled, and the groove fitting hook portion (31) has a distal end portion (310) folded upward in a U-shape, and a connecting ridge portion (2 ) In a shape that can be fitted in the groove (23),
In a state in which the groove fitting hook part (31) is fitted to the groove part (23) of the connecting ridge part (2) of the adjacent roof plate material, the inner surface of the groove part (23) A roof plate material characterized in that a space portion (5) surrounded by the groove fitting hook portion (31) is formed.

[2]上記[1]の屋根板材において、溝嵌合フック部(31)は、隣り合う屋根板材の連結用凸条部(2)の溝部(23)に嵌合した状態で、その全長が溝部(23)の底部を含む内面に密着当接するように構成されることを特徴とする屋根板材。
[3]上記[1]または[2]の屋根板材において、少なくとも、屋根板材本体部(1)、連結用凸条部(3)の本体部(30)および連結用凸条部(2)の湾曲状部(21)に縦リブ(6)が形成されることを特徴とする屋根板材。
[2] In the roof plate material of [1] , the groove fitting hook portion (31) is fitted to the groove portion (23) of the connecting ridge portion (2) of the adjacent roof plate material, and the total length thereof is A roof sheet material configured to be in close contact with the inner surface including the bottom of the groove (23).
[3] In the roof plate material according to [1] or [2] , at least the roof plate material main body portion (1), the main body portion (30) of the connecting ridge portion (3), and the connecting ridge portion (2). A roofing board material characterized in that longitudinal ribs (6) are formed on the curved part (21).

[4]上記[1]〜[3]のいずれかの屋根板材を用いた屋根構造であって、
各屋根板材(A)は、取付固定用板部(4)を固定手段(B)により屋根構造材(C)に固定することにより屋根に取付固定され、
隣り合う2つの屋根板材(A),(A)は、一方の屋根板材(A)の連結用凸条部(3)が、他方の屋根板材(A)の連結用凸条部(2)に被せられた状態で、前記連結用凸条部(3)の溝嵌合フック部(31)が前記連結用凸条部(2)の溝部(23)に嵌合し、且つ、前記連結用凸条部(3)の湾曲状の本体部(30)が、前記連結用凸条部(2)の湾曲状部(21)に重なり合うことにより、連結されることを特徴とする屋根構造。
[4] A roof structure using the roof plate material according to any one of [1] to [3 ] above,
Each roof plate material (A) is fixedly attached to the roof by fixing the fixing plate portion (4) to the roof structure material (C) by the fixing means (B).
Two adjacent roof plate materials (A) and (A) have a connecting ridge (3) of one roof plate (A) connected to a connecting ridge (2) of the other roof plate (A). In the covered state, the groove fitting hook portion (31) of the connecting ridge portion (3) is fitted into the groove portion (23) of the connecting ridge portion (2), and the connecting protrusion The roof structure characterized in that the curved main body (30) of the strip (3) is connected by overlapping the curved portion (21) of the connecting convex strip (2).

[5]上記[4]の屋根構造において、各屋根板材(A)に対して、長手方向で間隔をおいて複数の補強金具(D)が配置され、該補強金具(D)は、金属板を成形加工した部材であって、縦壁部(10)と、該縦壁部(10)の下端に連成され、縦壁部(10)の前面側に延出する取付固定部(11)と、縦壁部(10)の上端に連成され、縦壁部(10)の背面側に延出する鍔部(12)を備え、縦壁部(10)の背面が連結用凸条部(2)の縦壁部(22)の外面に、取付固定部(11)の下面が取付固定用板部(4)の上面に、鍔部(12)の下面が湾曲状部(21)の一部の外面に、それぞれ当接するように屋根板材(A)に対して配置され、取付固定部(11)が、固定手段(B)により取付固定用板部(4)とともに屋根構造材(C)に固定されることを特徴とする屋根構造。
[6]上記[5]の屋根構造において、補強金具(D)は、縦壁部(10)の上下方向に沿って形成されるリブ(14)を1本以上有することを特徴とする屋根構造。
[5] In the roof structure of [4 ] above, a plurality of reinforcing metal fittings (D) are arranged at intervals in the longitudinal direction with respect to each roof plate material (A), and the reinforcing metal fitting (D) is a metal plate A vertical wall portion (10) and an attachment fixing portion (11) which is coupled to the lower end of the vertical wall portion (10) and extends to the front side of the vertical wall portion (10). And a flange portion (12) that is coupled to the upper end of the vertical wall portion (10) and extends to the back side of the vertical wall portion (10), and the back surface of the vertical wall portion (10) is a connecting ridge portion. On the outer surface of the vertical wall portion (22) of (2), the lower surface of the mounting fixing portion (11) is the upper surface of the mounting fixing plate portion (4), and the lower surface of the flange portion (12) is the curved portion (21). The roof structure material is arranged with respect to the roof plate material (A) so as to be in contact with a part of the outer surface, and the mounting fixing portion (11) is fixed together with the mounting fixing plate portion (4) by the fixing means (B). Roof structure, characterized in that fixed to C).
[6] The roof structure according to [5] , wherein the reinforcing metal fitting (D) has at least one rib (14) formed along the vertical direction of the vertical wall portion (10). .

本発明の屋根板材および屋根構造は、タイトフレームや支持部材を用いることなく、少ない手間で簡単に施工することができ、また、屋根板材どうしの連結部において、優れた防水性能と風の吹き上げに対する高い連結強度が得られるとともに、雪などの荷重に耐え得る高い強度、特に長手方向のたわみに対する高い強度が得られ、しかも構造が簡単で製造も容易である。   The roof plate material and the roof structure of the present invention can be easily constructed with little effort without using a tight frame or a support member, and excellent waterproof performance and wind blowing can be achieved at the connection portion between the roof plate materials. A high connection strength can be obtained, a high strength that can withstand loads such as snow, especially a high strength against bending in the longitudinal direction, a simple structure, and easy manufacture.

本発明の屋根板材一実施形態を示す正面図The front view which shows one embodiment of the roofing board material of this invention 図1の屋根板材の斜視図1 is a perspective view of the roof plate material of FIG. 図1の屋根板材を構成する一方の連結用凸状部を示す拡大正面図The enlarged front view which shows the one convex-shaped part for a connection which comprises the roofing board material of FIG. 図1〜図3の屋根板材を用いた屋根構造を模式的に示す正面図The front view which shows typically the roof structure using the roof-plate material of FIGS. 1-3. 図1〜図3の屋根板材を用いた屋根構造の詳細を示す正面図The front view which shows the detail of the roof structure using the roof-plate material of FIGS. 1-3 図5の屋根構造の部分拡大図Partial enlarged view of the roof structure of FIG. 図5の屋根構造の側面図Side view of the roof structure of FIG. 図5〜図7の屋根構造で用いた補強金具の斜視図The perspective view of the reinforcement metal fitting used with the roof structure of FIGS. 本発明の屋根構造の他の実施形態において、補強金具とその取付構造を部分的に示す正面図In another embodiment of the roof structure of the present invention, a front view partially showing a reinforcing bracket and its mounting structure 本発明の屋根構造の他の実施形態において、補強金具とその取付構造を部分的に示す正面図In another embodiment of the roof structure of the present invention, a front view partially showing a reinforcing bracket and its mounting structure 本発明で使用する補強金具の他の実施形態を示すもので、図11(a)は斜視図、図11(b)は図11(a)中のb−b線に沿う断面図The other embodiment of the reinforcement metal fitting used by this invention is shown, Fig.11 (a) is a perspective view, FIG.11 (b) is sectional drawing which follows the bb line in Fig.11 (a).

図1〜図8は、本発明の屋根板材Aとこれを用いた屋根構造の一実施形態を示すものであり、図1は屋根板材Aの正面図、図2は同じく斜視図、図3は屋根板材Aを構成する連結用凸状部2を示す拡大正面図である。図4は屋根構造を模式的に示した正面図であり、簡単のために、隣り合う屋根板材Aを破線と実線で交互に示し、補強金具の図示を省略してある。図5〜図7は屋根構造の詳細を示したものであり、図5は正面図、図6は部分拡大図、図7は側面図である。図5〜図7では、便宜上、1つの屋根板材Aを実線で、その両側に連結される屋根板材Aと屋根構造材Cを仮想線で示してある。図8は屋根構造で用いた補強金具Dの斜視図である。   FIGS. 1-8 shows one Embodiment of the roofing board material A of this invention, and a roof structure using the same, FIG. 1 is a front view of the roofing board material A, FIG. 2 is also a perspective view, FIG. It is an enlarged front view which shows the convex part 2 for a connection which comprises the roofing board material A. FIG. FIG. 4 is a front view schematically showing the roof structure. For the sake of simplicity, adjacent roof plate materials A are shown alternately by broken lines and solid lines, and illustration of reinforcing metal fittings is omitted. 5 to 7 show details of the roof structure, FIG. 5 is a front view, FIG. 6 is a partially enlarged view, and FIG. 7 is a side view. 5 to 7, for convenience, one roof sheet material A is indicated by a solid line, and the roof sheet material A and the roof structure material C connected to both sides thereof are indicated by an imaginary line. FIG. 8 is a perspective view of the reinforcing metal fitting D used in the roof structure.

本発明の屋根板材Aは、金属板を成形(曲げ成形)加工して得られたものであり、幅方向両端側に、隣り合う屋根板材と連結するための構造を備えた屋根板材である。金属板の種類に特に制限はないが、通常、板厚が1mm以下の鋼板(塗装鋼板、表面処理鋼板など)が用いられる。
屋根板材Aは、幅方向一端側に、屋根板材本体部1から立ち上がり形成された第1の連結用凸条部2と、この連結用凸条部2の外側に連成された取付固定用板部4を有するとともに、幅方向他端側に、屋根板材本体部1から立ち上がり形成された第2の連結用凸条部3を有している。隣り合う屋根板材Aは、それらの連結用凸条部2と連結用凸条部3を係合させる(重なり合わせる)とともに、一部を嵌合させることにより連結される。
The roof sheet material A of the present invention is obtained by molding (bending molding) a metal plate, and is a roof sheet material having a structure for connecting to adjacent roof sheet materials on both ends in the width direction. Although there is no restriction | limiting in particular in the kind of metal plate, Usually, a steel plate (painted steel plate, surface-treated steel plate, etc.) with a board thickness of 1 mm or less is used.
The roof board material A is, on one end side in the width direction, a first connecting protrusion 2 formed up from the roof board body 1 and a mounting and fixing plate coupled to the outside of the connecting protrusion 2. While having the part 4, it has the 2nd connection protruding item | line part 3 formed rising from the roof-plate material main-body part 1 in the width direction other end side. Adjacent roofing plate materials A are connected by engaging (overlapping) the connecting ridges 2 and the connecting ridges 3 and fitting them together.

連結用凸条部2,3間の屋根板材本体部1は、通常、フラットな板部(ただし、本実施形態のような補強用の縦リブ6を設けた板部や、波板状の板部である場合を含む)であるが、適当な凸条部や突起などを設けることもできる。
取付固定用板部4は、連結用凸条部2の端部(後述する縦壁部22の下端)から水平方向に延出した板部であり、その自由端側に立ち上がり部40が形成されている。この立ち上がり部40の内側は、結露した水滴を水下側に排水する樋の役目をする。取付固定用板部4には、屋根板材長手方向で間隔をおいてビス止め用の取付孔(図示せず)が設けられている。
The roof plate material body 1 between the connecting ridges 2 and 3 is usually a flat plate (however, a plate provided with vertical ribs 6 for reinforcement as in this embodiment, or a corrugated plate). However, it is also possible to provide appropriate ridges or protrusions.
The mounting and fixing plate 4 is a plate extending in the horizontal direction from the end of the connecting ridge 2 (the lower end of the vertical wall 22 described later), and a rising portion 40 is formed on the free end thereof. ing. The inside of the rising portion 40 functions as a tub that drains the condensed water droplets to the lower side. The fixing plate portion 4 is provided with screw fixing holes (not shown) at intervals in the longitudinal direction of the roof plate material.

連結用凸条部2は、頂部20で隔てられた屋根板材本体部1側に湾曲状部21(凸状の湾曲状部)が形成されるとともに、取付固定用板部4側に縦壁部22が形成され、この縦壁部22の下端に取付固定用板部4が連成されている。本実施形態では、湾曲状部21は円弧状に構成され、連結用凸条部2は、略1/4円形状に立ち上がり成形された成形部となっている。
縦壁部22の上端(頂部20)は、取付固定用板部4に設けられたビス止め用の取付孔(図示せず)の真上よりも、屋根板材本体部1側に位置している。
The connecting ridge portion 2 is formed with a curved portion 21 (convex curved portion) on the roof plate body main body 1 side separated by the top portion 20 and a vertical wall portion on the mounting and fixing plate portion 4 side. 22 is formed, and the mounting and fixing plate portion 4 is coupled to the lower end of the vertical wall portion 22. In the present embodiment, the curved portion 21 is formed in an arc shape, and the connecting ridge portion 2 is a molded portion that is formed in a substantially quarter circle shape.
The upper end (top portion 20) of the vertical wall portion 22 is located closer to the roof plate body main body portion 1 side than directly above a screw fixing mounting hole (not shown) provided in the mounting fixing plate portion 4. .

連結用凸条部2の縦壁部22は、この連結用凸条部2に重ね合された連結用凸条部3(他の屋根板材の連結用凸条部3)の本体部30を内側から支える支持構造材として機能するとともに、屋根板材長手方向での曲げ(たわみ)に対する耐力材として機能する。縦壁部22は垂直壁ではなく、上部側が取付固定用板部4側に傾いた傾斜を有している。このように縦壁部22に傾きをもたせることにより、上記のような縦壁部22の機能を確保しつつ、湾曲状部21の周長を大きくとることができる。
縦壁部22の垂直方向に対する傾斜角α(図3に示す)は特に制限はないが、傾斜角αが小さすぎると傾斜をもたせる意味が小さくなり、傾斜角αが大きすぎると上記のような縦壁部22の機能が低下するとともに、縦壁部22が取付固定用板部4の上方にせりだして、取付固定用板部4を屋根構造材にビス止めする際の作業性が悪くなる。以上の観点から、縦壁部22の垂直方向に対する傾斜角αは5〜15°程度が好ましい。
The vertical wall portion 22 of the connecting ridge portion 2 has the main body portion 30 of the connecting ridge portion 3 (the connecting ridge portion 3 of another roof plate material) overlapped with the connecting ridge portion 2 inside. It functions as a support structure material supported from the top and functions as a load-bearing material against bending (bending) in the longitudinal direction of the roof plate material. The vertical wall portion 22 is not a vertical wall, but has an inclination in which the upper side is inclined toward the mounting and fixing plate portion 4 side. By providing the vertical wall portion 22 with an inclination in this manner, the circumferential length of the curved portion 21 can be increased while ensuring the function of the vertical wall portion 22 as described above.
The inclination angle α (shown in FIG. 3) with respect to the vertical direction of the vertical wall portion 22 is not particularly limited. However, if the inclination angle α is too small, the meaning of giving inclination becomes small, and if the inclination angle α is too large, While the function of the vertical wall portion 22 is lowered, the vertical wall portion 22 protrudes above the mounting and fixing plate portion 4 and the workability when the mounting and fixing plate portion 4 is screwed to the roof structure material is deteriorated. . From the above viewpoint, the inclination angle α of the vertical wall portion 22 with respect to the vertical direction is preferably about 5 to 15 °.

湾曲状部21の下部途中または下端には、溝開口230から深さ方向に向かって上向きに傾斜した溝部23が形成されている。この溝部23は、隣り合う他の屋根板材の一部(溝嵌合フック部31)を嵌合させるものであるが、溝開口230から深さ方向(奥行き方向)に向かって上向きに傾斜させているのは、雨水が嵌合部分から連結部内に浸入しないようにするとともに、隣り合う他の屋根板材の一部(溝嵌合フック部31)が溝部23に確実に引っ掛かり、風の吹き上げにより屋根板材どうしの連結が外れることがないようにするためである。   A groove portion 23 that is inclined upward in the depth direction from the groove opening 230 is formed in the middle or lower end of the curved portion 21. The groove portion 23 is for fitting a part of another adjacent roof plate material (groove fitting hook portion 31), and is inclined upward from the groove opening 230 in the depth direction (depth direction). The reason is that rainwater does not enter the connecting portion from the fitting portion, and a part of the other adjacent roof plate material (groove fitting hook portion 31) is reliably caught by the groove portion 23, and the roof is blown up by wind blowing. This is to prevent the plates from being disconnected from each other.

溝部23の深さ方向の傾斜角θ(水平に対する傾斜角)や深さd(奥行き)、幅w(いずれも図3に示す)は特に制限はないが、溝部23の傾斜角θが小さすぎると、雨水が嵌合部分から連結部内に侵入しやすくなるとともに、隣り合う他の屋根板材の一部(溝嵌合フック部31)が溝部23に引っ掛かる角度が浅くなるため連結強度が低下しやすくなる。一方、溝部23の傾斜角θが大きすぎると、隣り合う他の屋根板材の一部(溝嵌合フック部31)を溝部23に嵌合させる際の作業性が低下するとともに、連結用凸条部2自体の強度が低下しやすくなる。また、溝部23の深さd(奥行き)が小さすぎると、隣り合う他の屋根板材の一部(溝嵌合フック部31)と溝部23との嵌合長さが小さくなるので防水性が低下しやすくなるとともに、嵌合した状態で溝部23内に形成される空間部5の容積が小さくなり、この空間部5による排水性が低下しやすくなる。さらに、隣り合う他の屋根板材の一部(溝嵌合フック部31)の溝部23への引っ掛かりが小さくなるため連結強度も低下しやすくなる。一方、溝部23の深さd(奥行き)が大きすぎると、連結用凸条部2自体の強度が低下しやすくなる。また、溝部23の幅wが小さすぎると、隣り合う他の屋根板材の一部(溝嵌合フック部31)を溝部23に嵌合させる際の作業性が低下するとともに、嵌合した状態で溝部23により形成される空間部5の容積が小さくなり、この空間部5による排水性が低下しやすくなる。また、溝部23の幅wが大きすぎると、本発明条件に合致した溝部23が形成しにくくなる。   The inclination angle θ (inclination angle with respect to the horizontal), the depth d (depth), and the width w (all shown in FIG. 3) of the groove 23 are not particularly limited, but the inclination angle θ of the groove 23 is too small. Then, rainwater can easily enter the connecting portion from the fitting portion, and the angle at which a part of the other adjacent roof plate material (groove fitting hook portion 31) is caught by the groove portion 23 becomes shallow, so that the connection strength tends to decrease. Become. On the other hand, when the inclination angle θ of the groove portion 23 is too large, workability when fitting a part of the other adjacent roof plate material (groove fitting hook portion 31) to the groove portion 23 is deteriorated, and the connecting protrusions are formed. The strength of the part 2 itself tends to decrease. If the depth d (depth) of the groove 23 is too small, the fitting length between a part of the other adjacent roof plate material (groove fitting hook portion 31) and the groove 23 becomes small, so that the waterproof property is lowered. In addition, the volume of the space portion 5 formed in the groove portion 23 in the fitted state is reduced, and the drainage by the space portion 5 is likely to be reduced. Furthermore, since a part of other adjacent roof plate members (groove fitting hook part 31) is not caught in the groove part 23, the connection strength is easily lowered. On the other hand, if the depth d (depth) of the groove 23 is too large, the strength of the connecting ridges 2 itself tends to decrease. In addition, if the width w of the groove 23 is too small, workability when fitting a part of the other adjacent roof plate material (groove fitting hook part 31) to the groove 23 is lowered and in a fitted state. The volume of the space part 5 formed by the groove part 23 becomes small, and the drainage by this space part 5 tends to deteriorate. If the width w of the groove 23 is too large, it is difficult to form the groove 23 that meets the conditions of the present invention.

以上の観点から、溝部23の傾斜角θは20〜45°程度、深さd(奥行き)は連結用凸条部2の高さhの0.2〜0.5程度、幅wは深さd(奥行き)の0.15〜0.4程度が好ましい。
なお、溝部23の溝開口230は、湾曲状部21の下部途中または下端に形成されるが、その下端縁のベース面(屋根板材本体部1)からの高さhは、連結用凸条部2の高さhの0.1〜0.3程度が好ましい。
From the above viewpoint, the inclination angle θ of the groove 23 is about 20 to 45 °, the depth d (depth) is about 0.2 to 0.5 of the height h of the connecting ridge 2, and the width w is the depth. A d (depth) of about 0.15 to 0.4 is preferable.
The groove opening 230 of the groove portion 23 is formed in the middle of the lower portion or the lower end of the curved portion 21. The height h O of the lower end edge from the base surface (roof sheet material main body portion 1) is a connecting ridge. The height h of the portion 2 is preferably about 0.1 to 0.3.

連結用凸条部3は、その本体部30が湾曲状(凸湾曲状)に構成されるとともに、この本体部30の自由端側に、湾曲した本体部30の内側に延出する溝嵌合フック部31が連成されている。本実施形態の本体部30は、略半円形の円弧状に構成されている。また、溝嵌合フック部31は、先端側部分310が上側にU字状に折り返され、隣り合う屋根板材の連結用凸条部2の溝部23に嵌合可能な形状に構成されている。すなわち、溝嵌合フック部31は、本体部30の内面に対して鋭角となるようにフック状に折り曲げ形成されるとともに、先端側部分310が上側(本体部30側)にU字状に折り返された形状を有している。そして、この溝嵌合フック部31を、隣り合う屋根板材の連結用凸条部2の溝部23に嵌合した状態で、溝部23内に、溝部23の内面と溝嵌合フック部31とで囲まれる空間部5が形成されるようにしている。また、溝嵌合フック部31は、隣り合う屋根板材の連結用凸条部2の溝部23に嵌合した状態で、その全長が溝部23の底部を含む内面に密着当接するように構成されている。   The connecting ridge portion 3 has a main body portion 30 configured in a curved shape (convex curved shape), and a groove fitting extending inside the curved main body portion 30 on the free end side of the main body portion 30. A hook portion 31 is coupled. The main body 30 of the present embodiment is configured in a substantially semicircular arc shape. In addition, the groove fitting hook portion 31 is configured to have a shape that allows the front end side portion 310 to be folded upward in a U shape so that the groove fitting hook portion 31 can be fitted to the groove portion 23 of the connecting ridge portion 2 of the adjacent roof plate material. That is, the groove fitting hook part 31 is bent and formed in a hook shape so as to have an acute angle with respect to the inner surface of the main body part 30, and the distal end side portion 310 is folded back in a U shape on the upper side (main body part 30 side). It has a shape. Then, in a state where the groove fitting hook portion 31 is fitted to the groove portion 23 of the connecting ridge portion 2 of the adjacent roof plate material, the groove portion 23 includes the inner surface of the groove portion 23 and the groove fitting hook portion 31. An enclosed space 5 is formed. Further, the groove fitting hook portion 31 is configured so that the entire length thereof is in close contact with the inner surface including the bottom portion of the groove portion 23 in a state where the groove fitting hook portion 31 is fitted to the groove portion 23 of the connecting ridge portion 2 of the adjacent roof plate material. Yes.

連結用凸条部3の基端部(屋根板材本体部1との接続部)と、連結用凸条部2の基端部(屋根板材本体部1との接続部)には、それぞれアール部32(カーブ)とアール部24(カーブ)が形成され、隣り合う屋根板材の連結用凸条部2と連結用凸条部3が重なり合って形成される連結部Eが、全体としてなだらかな円弧状となるように構成されている。
また、本発明の屋根板材は、雪などの荷重に対する強度、特に長手方向のたわみに対する強度を高めるため、必要な箇所に縦リブを設けたり、必要な箇所を縦波板状に構成したりすることができる。本実施形態では、屋根板材本体部1、連結用凸条部3の本体部30、連結用凸条部2の湾曲状部21に、所定の間隔で縦リブ6(屋根板材長手方向に形成されるリブ)が形成されている。本実施形態では、小断面で高さの低い凸状の縦リブ6が形成されている。なお、縦リブ6は、さらに他の部位に形成してもよい。
The base end portion (connecting portion with the roof plate material main body portion 1) of the connecting ridge portion 3 and the base end portion (connecting portion with the roof plate material main body portion 1) of the connecting ridge portion 2 are respectively rounded portions. 32 (curve) and rounded portion 24 (curve) are formed, and the connecting portion E formed by overlapping the connecting ridge portion 2 and the connecting ridge portion 3 of the adjacent roofing plate material has a gentle arc shape as a whole. It is comprised so that.
Further, the roof sheet material of the present invention is provided with vertical ribs at necessary locations or configured as a longitudinal corrugated plate in order to increase the strength against loads such as snow, particularly the strength against bending in the longitudinal direction. be able to. In the present embodiment, the longitudinal ribs 6 (formed in the longitudinal direction of the roof plate material) are formed at predetermined intervals on the roof plate material main body portion 1, the main body portion 30 of the connecting convex strip portion 3, and the curved portion 21 of the connecting convex strip portion 2. Ribs) are formed. In the present embodiment, convex vertical ribs 6 having a small cross section and a low height are formed. In addition, you may form the longitudinal rib 6 in another site | part.

以下、上述した屋根板材Aを用いた本発明の屋根構造について説明する。
図4に示すように、各屋根板材Aは、取付固定用板部4を固定手段Bにより屋根構造材Cに固定することにより屋根に取付固定される。屋根構造材Cは、母屋、垂木、野地板(例えば耐火ボードなど)など任意である。固定手段Bも任意であるが、本実施形態ではビス7と押え用のリング8が用いられている。すなわち、取付固定用板部4に設けられた取付孔(図示せず)を介して、頭部に押さえ用のリング8を装着したビス7で取付固定用板部4を屋根構造材Cに固定(ビス止め)する。図4では省略してあるが、通常、図5〜図8に示すような補強金具Dが配置され、この補強金具Dが取付固定用板部4とともに屋根構造材Cに固定(ビス止め)される。
Hereinafter, the roof structure of the present invention using the above-described roof plate material A will be described.
As shown in FIG. 4, each roof plate material A is fixedly attached to the roof by fixing the fixing plate portion 4 to the roof structure material C by the fixing means B. The roof structure material C is arbitrary such as a purlin, a rafter, and a field board (for example, a fireproof board). The fixing means B is also optional, but in this embodiment, a screw 7 and a pressing ring 8 are used. In other words, the mounting and fixing plate portion 4 is fixed to the roof structure material C with screws 7 having a pressing ring 8 attached to the head through mounting holes (not shown) provided in the mounting and fixing plate portion 4. (Screw). Although omitted in FIG. 4, a reinforcing metal fitting D as shown in FIGS. 5 to 8 is usually arranged, and this reinforcing metal fitting D is fixed (screwed) to the roof structure material C together with the mounting fixing plate portion 4. The

ここで、隣り合う2つの屋根板材Aの連結構造を、図4、図5〜図7の隣り合う2つの屋根板材Ax、Ayを例に説明すると、一方の屋根板材Ayの連結用凸条部3yが、他方の屋根板材Axの連結用凸条部2xに被せられた状態(重ね合された状態)で、連結用凸条部3yの溝嵌合フック部31yが連結用凸条部2xの溝部23xに嵌合し、且つ、連結用凸条部3yの湾曲状の本体部30yが、連結用凸条部2xの湾曲状部21xに重なり合うことにより、隣り合う2つの屋根板材Ax、Ayが連結される。この連結により、隣り合う屋根板材Ax、Ayの連結用凸条部2xと連結用凸条部3yが重なり合った湾曲状(本実施形態では略半円形の円弧状)の連結部Eが構成される。   Here, the connection structure of two adjacent roof sheet materials A will be described by taking the two adjacent roof sheet materials Ax and Ay shown in FIGS. 4 and 5 to 7 as an example. 3y is in a state of being overlaid (overlapped) on the connecting ridge 2x of the other roof plate material Ax, and the groove fitting hook portion 31y of the connecting ridge 3y is connected to the connecting ridge 2x. By fitting the curved main body 30y of the connecting ridge 3y into the groove 23x and the curved portion 21x of the connecting ridge 2x, two adjacent roof plate materials Ax and Ay are formed. Connected. By this connection, a curved connecting portion E (substantially semicircular arc shape in the present embodiment) in which the connecting projections 2x of the adjacent roof plate materials Ax and Ay and the connecting projections 3y are overlapped is formed. .

この連結部Eでは、溝部23x内に、溝部23xの内面と溝嵌合フック部31yとで囲まれる空間部5が形成される。また、溝嵌合フック部31yは、その全長が溝部23xの底部を含む内面に密着当接する。また、溝部23xの溝開口230は、溝嵌合フック部31yの基端部で塞がれた状態となる。
なお、溝嵌合フック部31yや溝嵌合フック部31yの先端側部分310は、弾性変形した状態で溝部23xに嵌合(弾性嵌合)してもよい。
In this connection part E, the space part 5 enclosed by the inner surface of the groove part 23x and the groove fitting hook part 31y is formed in the groove part 23x. Further, the groove fitting hook portion 31y is in close contact with the inner surface including the bottom portion of the groove portion 23x. Further, the groove opening 230 of the groove portion 23x is closed by the proximal end portion of the groove fitting hook portion 31y.
It should be noted that the groove fitting hook portion 31y and the tip side portion 310 of the groove fitting hook portion 31y may be fitted (elastically fitted) into the groove portion 23x in an elastically deformed state.

また、各屋根板材Aに対して、長手方向で間隔をおいて複数の補強金具Dが配置される。この補強金具Dは、金属板を成形加工(曲げ成形)した部材であって、図8に示すように、縦壁部10と、この縦壁部10の下端に連成され、縦壁部10の前面側に延出する取付固定部11と、縦壁部10の上端に連成され、縦壁部10の背面側に延出する鍔部12を備えている。また、取付固定部11は水平な板部であり、その自由端側に立ち上がり部110が形成されている。この取付固定部11には、ビス止め用の取付孔(図示せず)が設けられている。   Moreover, with respect to each roofing board material A, the some reinforcement metal fitting D is arrange | positioned at intervals in the longitudinal direction. The reinforcing metal fitting D is a member obtained by molding (bending molding) a metal plate. As shown in FIG. 8, the reinforcing metal fitting D is coupled to the vertical wall portion 10 and the lower end of the vertical wall portion 10. An attachment fixing part 11 extending to the front side of the vertical wall part 10 and an eaves part 12 extending to the back side of the vertical wall part 10 are provided. Further, the attachment fixing portion 11 is a horizontal plate portion, and a rising portion 110 is formed on the free end side thereof. The mounting fixing portion 11 is provided with a mounting hole (not shown) for screwing.

このような補強金具Dは、その縦壁部10の背面が連結用凸条部2の縦壁部22の外面に、取付固定部11の下面が取付固定用板部4の上面に、鍔部12の下面が湾曲状部21の一部の外面に、それぞれ当接するように屋根板材Aに対して配置され、取付固定部11が、固定手段Bにより取付固定用板部4とともに屋根構造材Cに固定される。本実施形態では、取付固定部11と取付固定用板部4にそれぞれ設けられた取付孔を介して、頭部に押え用のリング8装着したビス7によって取付固定部11と取付固定用板部4を屋根構造材Cに固定(ビス止め)している。   In such a reinforcing metal fitting D, the back surface of the vertical wall portion 10 is on the outer surface of the vertical wall portion 22 of the connecting ridge portion 2, the lower surface of the mounting fixing portion 11 is on the upper surface of the mounting fixing plate portion 4, and the collar portion 12 is arranged with respect to the roof plate A so that the lower surface of each of the 12 contacts the outer surface of a part of the curved portion 21, and the attachment fixing portion 11 is fixed together with the attachment fixing plate portion 4 by the fixing means B. Fixed to. In the present embodiment, the mounting fixing portion 11 and the mounting fixing plate portion are attached by screws 7 having a pressing ring 8 attached to the head through mounting holes respectively provided in the mounting fixing portion 11 and the mounting fixing plate portion 4. 4 is fixed (screw-fixed) to the roof structure material C.

この補強金具Dの配置間隔に特に制限はなく、任意の間隔(例えば、0mm〜1000mm程度の任意の間隔)で配置すればよい。また、固定される屋根構造材Cが野地板(耐火ボードなど)の場合には、1枚の野地板に対して両端部とその間の1箇所以上に配置することができ、例えば、1800mmの野地板(耐火ボードなど)に対して、900mm間隔で3箇所(両端部と中央部)に、或いは600mm間隔で4箇所(両端部とその間の2箇所)に配置するような配置間隔とすることができる。
このような補強金具Dを用いることにより縦壁部22が補強され、連結用凸条部3の湾曲状の本体部30を内側から支える支持構造材としての機能と、屋根板材長手方向での曲げ(たわみ)に対する耐力材として機能が強化され、雪などの荷重に対する強度、特に屋根板材の長手方向のたわみに対する強度をより高めることができる。
There is no restriction | limiting in particular in the arrangement | positioning space | interval of this reinforcement metal fitting D, What is necessary is just to arrange | position at arbitrary intervals (for example, arbitrary intervals of about 0 mm-1000 mm). Further, when the roof structure material C to be fixed is a field board (fireproof board or the like), it can be arranged at both ends and at least one place between them, for example, a field board of 1800 mm. With respect to the ground plate (fireproof board, etc.), the arrangement interval may be set such that it is arranged at three locations (both ends and central portion) at intervals of 900 mm, or at four locations (both ends and two locations therebetween) at intervals of 600 mm. it can.
By using such a reinforcing metal fitting D, the vertical wall portion 22 is reinforced, the function as a support structure material that supports the curved main body portion 30 of the connecting ridge portion 3 from the inside, and the bending in the longitudinal direction of the roof plate material. The function is strengthened as a load-bearing material against (deflection), and the strength against a load such as snow, in particular, the strength against the longitudinal deflection of the roofing sheet material can be further increased.

また、補強金具Dは、図9に示すように取付固定部11にリブ13を設けてもよく、このような補強金具Dを用いることにより、屋根板材の補強効果をより高めることができる。図9の例では、取付固定部11に屋根板材長手方向に沿って2本のリブ13が平行に形成され、そのリブ13間に形成された取付孔(図示せず)を介して、ビス7により取付固定部11と取付固定用板部4が屋根構造材Cに固定(ビス止め)されている。また、図10は、同様の補強金具Dを用い、ビス7の頭部に装着した押え用のリング8を2つのリブ13を跨ぐように配置し、ビス7により取付固定部11と取付固定用板部4が屋根構造材Cに固定(ビス止め)されている。この図10の実施形態は、ビス7の頭部およびリング8と取付固定部11との間に、リブ13の高さ分の隙間ができるため、結露が生じにくい利点がある。   Moreover, the reinforcement metal fitting D may provide the rib 13 in the attachment fixing | fixed part 11 as shown in FIG. 9, By using such a reinforcement metal fitting D, the reinforcement effect of a roof board | plate material can be improved more. In the example of FIG. 9, two ribs 13 are formed in parallel in the longitudinal direction of the roof plate material on the mounting fixing portion 11, and screws 7 are connected via mounting holes (not shown) formed between the ribs 13. Thus, the mounting fixing portion 11 and the mounting fixing plate portion 4 are fixed (screwed) to the roof structure material C. Further, in FIG. 10, the same reinforcing metal fitting D is used, and the presser ring 8 attached to the head of the screw 7 is arranged so as to straddle the two ribs 13. The plate part 4 is fixed (screwed) to the roof structure material C. The embodiment of FIG. 10 has an advantage that condensation is unlikely to occur because a gap corresponding to the height of the rib 13 is formed between the head of the screw 7 and the ring 8 and the mounting fixing portion 11.

図11は、補強金具の他の実施形態を示すもので、図11(a)は斜視図、図11(b)は図11(a)中のb−b線に沿う断面図である。この補強金具Dは、縦壁部10の上下方向に沿ってリブ14(縦リブ)を形成したものである。本実施形態では、縦壁部10の幅方向中央の1箇所にリブ14を形成したものであるが、縦壁部10の幅方向の複数箇所にリブ14(すなわち複数の縦リブ)を形成してもよい。
本実施形態のように、補強金具Dの縦壁部10の上下方向に沿ってリブ14を形成すると、屋根板材の縦壁部22がより強固に補強されることで上述した機能がより高められ、特に屋根板材の長手方向のたわみに対する強度をより高めることができる。
なお、リブ14は、図9または図10に示す補強金具Dの縦壁部10にも形成できることは言うまでもない。
FIG. 11 shows another embodiment of the reinforcing metal fitting, FIG. 11 (a) is a perspective view, and FIG. 11 (b) is a cross-sectional view taken along line bb in FIG. 11 (a). The reinforcing metal fitting D is formed by forming ribs 14 (vertical ribs) along the vertical direction of the vertical wall portion 10. In the present embodiment, the rib 14 is formed at one place in the center in the width direction of the vertical wall portion 10, but the ribs 14 (that is, a plurality of vertical ribs) are formed at a plurality of locations in the width direction of the vertical wall portion 10. May be.
When the rib 14 is formed along the vertical direction of the vertical wall portion 10 of the reinforcing metal fitting D as in the present embodiment, the above-described function is further enhanced by reinforcing the vertical wall portion 22 of the roof plate material more firmly. In particular, it is possible to further increase the strength against the longitudinal deflection of the roofing sheet material.
Needless to say, the rib 14 can also be formed on the vertical wall portion 10 of the reinforcing metal fitting D shown in FIG. 9 or 10.

また、以上のような屋根構造の施工手順は、屋根板材Axの取付固定用板部4を固定手段B(ビス7など)で屋根構造材Cに固定した状態で、その連結用凸条部2xの上に、次の屋根板材Ayの連結用凸条部3yを被せ(重ね合せ)、その溝嵌合フック部31yを連結用凸条部2xの溝部23xに引っ掛けて嵌合させ、次いで、この屋根板材Ayの取付固定用板部4を固定手段B(ビス7など)で屋根構造材Cに固定する。その際、補強金具Dを屋根板材長手方向で適宜間隔(例えば、60〜90cm程度の間隔)をおいて配置し、その取付固定部11を固定手段B(ビス7など)で取付固定用板部4とともに屋根構造材Cに固定する。さらに、その連結用凸条部2yの上に、次の屋根板材Azの連結用凸条部3zを被せ(重ね合せ)、その溝嵌合フック部31zを連結用凸条部2yの溝部23yに引っ掛けて嵌合させた後、同様の固定を行う。以上を繰り返し行うことにより、隣り合う複数の屋根板材Aを順次連結しながら屋根に取付固定するものである。   Further, the construction procedure of the roof structure as described above is performed in a state in which the mounting and fixing plate portion 4 of the roof plate material Ax is fixed to the roof structure material C by the fixing means B (screw 7 or the like). On top of this, the connecting ridge 3y of the next roof sheet material Ay is covered (overlapped), and the groove fitting hook portion 31y is hooked on the groove 23x of the connecting ridge 2x, and then fitted. The mounting and fixing plate portion 4 of the roof plate material Ay is fixed to the roof structure material C by fixing means B (such as screws 7). At that time, the reinforcing metal fittings D are arranged at an appropriate interval (for example, an interval of about 60 to 90 cm) in the longitudinal direction of the roof plate material, and the mounting and fixing portion 11 is fixed by the fixing means B (screw 7 or the like). 4 and the roof structure material C. Further, the connecting ridge portion 3z of the next roof plate material Az is covered (overlapped) on the connecting ridge portion 2y, and the groove fitting hook portion 31z is put on the groove portion 23y of the connecting ridge portion 2y. After hooking and fitting, the same fixing is performed. By repeatedly performing the above, a plurality of adjacent roof plate materials A are sequentially connected and fixed to the roof.

このような屋根構造の施工は、前の屋根板材A(取付固定済みの屋根板材A)の連結用凸条部2の上に、次の屋根板材Aの連結用凸条部3を被せ(重ね合せ)、その溝嵌合フック部31を連結用凸条部2の溝部23に引っ掛けて嵌合し、その取付固定用板部4を固定手段B(ビス7など)で屋根構造材Cに固定するだけでよく、特別な工具や熟練技術を要することなく、簡単に施工することができる。   In the construction of such a roof structure, the connecting ridge 3 of the next roof plate A is placed on the connecting ridge 2 of the previous roof plate A (attached and fixed roof plate A) (overlapping). The groove fitting hook part 31 is hooked and fitted into the groove part 23 of the connecting ridge part 2, and the mounting and fixing plate part 4 is fixed to the roof structure material C by fixing means B (screw 7 or the like). It is only necessary to do this, and it can be installed easily without requiring special tools or skill.

以下、本発明の屋根板材とこれを用いた屋根構造の諸性能について説明する。
(1)防水性
連結部Eでは、連結用凸条部2の溝部23が、溝開口230から深さ方向に向かって上向きに傾斜した状態に形成され、この溝部23に連結用凸条部3の溝嵌合フック部31が嵌合し、しかも、この溝嵌合フック部31は、先端側部分310が上側にU字状に折り返された形状であるため、嵌合部分から連結部E内に雨水が浸入しにくく、優れた防水性が得られる。
Hereinafter, the roof board | plate material of this invention and various performances of the roof structure using the same are demonstrated.
(1) Waterproofness In the connecting part E, the groove part 23 of the connecting ridge part 2 is formed so as to be inclined upward in the depth direction from the groove opening 230, and the connecting ridge part 3 is formed in the groove part 23. The groove fitting hook portion 31 is fitted, and the groove fitting hook portion 31 has a shape in which the distal end side portion 310 is folded upward in a U shape. It is difficult for rainwater to enter and excellent waterproofness is obtained.

また、溝部23内に、溝部23の内面と溝嵌合フック部31とで囲まれる空間部5が形成され、且つ溝嵌合フック部31は、先端側部分310が上側にU字状に折り返された形状を有するため、仮に、溝嵌合フック部31と溝部23との隙間から雨水が侵入した場合でも、侵入した雨水はすべて空間部5に入り、この空間部5が水路となって水下側に排水される。このため、雨水が空間部5を超えて湾曲状部21(連結用凸条部2)と本体部30(連結用凸条部3)との隙間に侵入することが阻止される。また、本実施形態の空間部5は十分な大きさがあるため、排水性能が高く、このため、雨水が空間部5を超えて湾曲状部21と本体部30yとの隙間に侵入することをより確実に阻止することができる。また、仮に、湾曲状部21と本体部30との隙間の一部(下部領域)に雨水が侵入したとしても、湾曲状部21と本体部30との隙間は十分高さを有しており、雨水が連結用凸条部2の頂部20を超えて取付固定用板部4側に侵入することはない。以上のように連結部Eは多重的な防水構造となっているため、雨水が屋根裏側に侵入することを確実に防止できる。   Further, a space portion 5 surrounded by the inner surface of the groove portion 23 and the groove fitting hook portion 31 is formed in the groove portion 23, and the tip end portion 310 of the groove fitting hook portion 31 is folded upward in a U shape. Therefore, even if rainwater enters from the gap between the groove fitting hook portion 31 and the groove portion 23, all of the rainwater that has entered enters the space portion 5, and the space portion 5 becomes a water channel. Drained to the bottom. For this reason, rainwater is prevented from entering the gap between the curved portion 21 (the connecting ridge portion 2) and the main body portion 30 (the connecting ridge portion 3) beyond the space portion 5. Moreover, since the space part 5 of this embodiment has a sufficient size, drainage performance is high. Therefore, rainwater enters the gap between the curved part 21 and the main body part 30y beyond the space part 5. It can be blocked more reliably. Further, even if rainwater enters a part of the gap (lower region) between the curved portion 21 and the main body portion 30, the gap between the curved portion 21 and the main body portion 30 has a sufficient height. Rainwater does not enter the mounting and fixing plate portion 4 side beyond the top portion 20 of the connecting ridge portion 2. As described above, since the connecting portion E has a multiple waterproof structure, rainwater can be reliably prevented from entering the attic side.

(2)雪などの荷重に対する強度
連結部Eは、(i)全体が湾曲した凸状(本実施形態では略半円形の円弧状)であって、且つ連結用凸条部2の湾曲状部21と連結用凸条部3の湾曲状の本体部30が重なり合った構造であることにより、所定の強度が得られること、(ii)連結用凸条部2の縦壁部22が、連結用凸条部3の湾曲状の本体部30を内側から支える支持構造材として機能するとともに、屋根板材長手方向での曲げ(たわみ)に対する耐力材として機能すること、(iii)溝部23と溝嵌合フック部31による嵌合部も、屋根板材長手方向での曲げ(たわみ)に対する耐力材として機能すること、などの作用が複合的に得られることにより雪などの荷重に対して高い強度、特に屋根板材の長手方向のたわみに対する高い強度を有する。また、本実施形態のように縦リブ6を形成することにより、より高い強度(特に屋根板材の長手方向のたわみに対する強度)を得ることができる。
(2) Strength against load such as snow The connecting portion E is (i) a convex shape that is curved as a whole (in the present embodiment, a substantially semicircular arc shape), and the curved portion of the connecting ridge portion 2 21 and the curved main body portion 30 of the connecting ridge 3 overlap each other, so that a predetermined strength can be obtained, and (ii) the vertical wall portion 22 of the connecting ridge 2 is connected. It functions as a support structure material that supports the curved main body portion 30 of the ridge portion 3 from the inside, and also functions as a load-bearing material against bending (bending) in the longitudinal direction of the roof plate material, (iii) groove fitting with the groove portion 23 The fitting portion formed by the hook portion 31 also functions as a load-bearing material against bending (bending) in the longitudinal direction of the roof plate material, and thus has a high strength against loads such as snow, in particular, the roof. Has high strength against longitudinal deflection of plate material Further, by forming the vertical ribs 6 as in the present embodiment, higher strength (particularly strength against deflection in the longitudinal direction of the roof plate material) can be obtained.

さらに、補強金具Dを用いることにより屋根板材の縦壁部22が補強されるため、上記(ii)の機能が強化され、より高い強度(特に屋根板材の長手方向のたわみに対する強度)を得ることができる。また、図11に示すような縦壁部10にリブ14を形成した補強金具Dを用いることにより縦壁部22がさらに強固に補強されるため、上記(ii)の機能がより強化され、さらに高い強度(特に屋根板材の長手方向のたわみに対する強度)を得ることができる。
また、上記のように高い強度を有することから、天井を吊り上げる効果が得られ、このため、例えば、従来構造に比べて母屋の間隔を広くして母屋の数を減らすことができるなど、材料コストの低減にも寄与できる。
Furthermore, since the vertical wall portion 22 of the roofing sheet material is reinforced by using the reinforcing metal fitting D, the function (ii) is strengthened to obtain higher strength (particularly strength against the longitudinal deflection of the roofing sheet material). Can do. Moreover, since the vertical wall part 22 is further reinforced by using the reinforcing metal fitting D in which the ribs 14 are formed on the vertical wall part 10 as shown in FIG. 11, the function (ii) is further strengthened. High strength (particularly strength against deflection in the longitudinal direction of the roof sheet material) can be obtained.
Moreover, since it has high strength as described above, the effect of lifting the ceiling can be obtained. For this reason, for example, the number of purlins can be reduced by increasing the interval between purlins compared to the conventional structure. Can also contribute to the reduction of

(3)風の吹き上げに対する連結強度
連結部Eは、一方の屋根板材Aの連結用凸条部2の上に、他方の屋根板材Aの連結用凸条部3を被せ(重ね合せ)、その溝嵌合フック部31を連結用凸条部2の溝部23に引っ掛けて嵌合させた構造であるため、風の吹き上げに対して高い連結強度が得られる。特に、溝部23は湾曲状部21の下部途中または下端に設けられているので、風の吹き上げに対抗して連結状態を安定して維持することができる。このため、強い風が吹き上げても連結部Eの連結が外れることがない。
(3) Connection strength against wind blowing The connection part E covers (superimposes) the connection protrusions 3 of the other roofing sheet A on the connection protrusions 2 of one roofing sheet A, Since the groove fitting hook portion 31 is hooked and fitted to the groove portion 23 of the connecting ridge portion 2, high connection strength can be obtained against wind blowing. In particular, since the groove portion 23 is provided in the middle of the lower portion or the lower end of the curved portion 21, the connected state can be stably maintained against the blowing of wind. For this reason, even if a strong wind blows up, the connection of the connection part E does not come off.

(4)施工性
先行の屋根板材Aを屋根構造材Cに取付固定した状態で、その連結用凸条部2の上に、手作業で次の屋根板材Aの連結用凸条部3を被せ、その溝嵌合フック部31を連結用凸条部2の溝部23に引っ掛けて嵌合し、この屋根板材Aの取付固定用板部4を屋根構造材Cに固定するだけでよいため、特別な工具や熟練技術を要することなく、簡単に施工ができる。
(4) Workability With the preceding roof sheet material A attached and fixed to the roof structure material C, the connecting rib part 3 of the next roof sheet material A is manually covered on the connecting rib part 2. The groove fitting hook portion 31 is hooked and fitted into the groove portion 23 of the connecting ridge portion 2, and the mounting and fixing plate portion 4 of the roof plate material A only needs to be fixed to the roof structure material C. Easy installation without the need for special tools and skill.

(5)外観
連結部Eは全体が湾曲した凸状(本実施形態では略半円形の円弧状)であり、連結部E間は、必要に応じて縦リブが形成された屋根板材本体部1で構成されるので、シンプルで美麗な外観の屋根を構築することができる。また、本実施形態の連結部Eは、両側にアール部32(カーブ)とアール部24(カーブ)が形成された全体としてなだらかな円弧状であるため、特に美麗な外観の屋根を構築することができる。
(5) Appearance The connecting portion E is a convex shape that is curved as a whole (in this embodiment, a substantially semicircular arc shape), and between the connecting portions E, a roof sheet material body portion 1 in which vertical ribs are formed as necessary. Because it is composed of, it is possible to build a roof with a simple and beautiful appearance. Moreover, since the connection part E of this embodiment is a gentle arc shape as a whole in which the rounded part 32 (curve) and the rounded part 24 (curve) are formed on both sides, a particularly beautiful appearance roof is constructed. Can do.

1,1x,1y,1z 屋根板材本体部
2,2x,2y 連結用凸条部
3,3x,3y,3z 連結用凸条部
4 取付固定用板部
5 空間部
6 縦リブ
7 ビス
8 リング
10 縦壁部
11 取付固定部
12 鍔部
13 リブ
14 リブ
20 頂部
21,21x,21y 湾曲状部
22 縦壁部
23,23x,23y 溝部
24 アール部
30,30y,30z 本体部
31,31y,31z 溝嵌合フック部
32 アール部
40 立ち上がり部
110 立ち上がり部
230 溝開口
310 先端側部分
A,Ax,Ay,Az 屋根板材
B 固定手段
C 屋根構造材
D 補強金具
E 連結部
1, 1x, 1y, 1z Roof plate material main body 2, 2x, 2y Connecting projection 3, 3, x, 3y, 3z Connecting projection 4 Mounting fixing plate 5 Space 6 Vertical rib 7 Screw 8 Ring 10 Vertical wall portion 11 Mounting and fixing portion 12 Gutter portion 13 Rib 14 Rib 20 Top portion 21, 21x, 21y Curved portion 22 Vertical wall portion 23, 23x, 23y Groove portion 24 Round portion 30, 30y, 30z Main body portion 31, 31y, 31z Groove Fitting hook portion 32 round portion 40 rising portion 110 rising portion 230 groove opening 310 tip side portion A, Ax, Ay, Az roof plate material B fixing means C roof structure material D reinforcing bracket E connecting portion

Claims (6)

金属板を成形加工した屋根板材であって、幅方向両端側に、隣り合う屋根板材と連結するための構造を備えた屋根板材において、
幅方向一端側には、屋根板材本体部(1)から立ち上がり形成された第1の連結用凸条部(2)と、該連結用凸条部(2)の外側に連成された取付固定用板部(4)を有するとともに、幅方向他端側には、屋根板材本体部(1)から立ち上がり形成された第2の連結用凸条部(3)を有し、
連結用凸条部(2)は、頂部(20)で隔てられた屋根板材本体部(1)側に湾曲状部(21)が形成されるとともに、取付固定用板部(4)側に縦壁部(22)が形成され、該縦壁部(22)は、上部側が取付固定用板部(4)側に傾いた傾斜を有するとともに、該縦壁部(22)の下端に前記取付固定用板部(4)が連成され、湾曲状部(21)の下部途中または下端には、溝開口から深さ方向に向かって上向きに傾斜した溝部(23)が形成され、
連結用凸条部(3)は、その本体部(30)が湾曲状に構成されるとともに、該本体部(30)の自由端側に、本体部(30)の内側に延出する溝嵌合フック部(31)が連成され、該溝嵌合フック部(31)は、先端側部分(310)が上側にU字状に折り返され、隣り合う屋根板材の連結用凸条部(2)の溝部(23)に嵌合可能な形状に構成され、
溝嵌合フック部(31)を、隣り合う屋根板材の連結用凸条部(2)の溝部(23)に嵌合した状態で、溝部(23)内に、該溝部(23)の内面と溝嵌合フック部(31)とで囲まれる空間部(5)が形成されるようにしたことを特徴とする屋根板材。
In the roof plate material formed by processing a metal plate, the roof plate material having a structure for connecting to the adjacent roof plate material on both ends in the width direction,
On the one end side in the width direction, a first connecting ridge (2) rising from the roof plate body main body (1), and an attachment fixing coupled to the outside of the connecting ridge (2). And the second connecting ridge (3) formed rising from the roof plate main body (1) on the other end in the width direction.
The connecting ridge (2) is formed with a curved portion (21) on the roof plate body (1) side separated by the top (20), and vertically on the mounting and fixing plate (4) side. A wall portion (22) is formed, and the vertical wall portion (22) has an inclination whose upper side is inclined toward the mounting and fixing plate portion (4) side, and the mounting and fixing to the lower end of the vertical wall portion (22). A plate part (4) is coupled, and a groove part (23) inclined upward in the depth direction from the groove opening is formed in the lower middle or lower end of the curved part (21),
The connecting ridge (3) has a main body (30) configured in a curved shape, and a groove fits on the free end side of the main body (30) and extends inside the main body (30). The hook portion (31) is coupled, and the groove fitting hook portion (31) has a distal end portion (310) folded upward in a U-shape, and a connecting ridge portion (2 ) In a shape that can be fitted in the groove (23),
In a state in which the groove fitting hook part (31) is fitted to the groove part (23) of the connecting ridge part (2) of the adjacent roof plate material, the inner surface of the groove part (23) A roof plate material characterized in that a space portion (5) surrounded by the groove fitting hook portion (31) is formed.
溝嵌合フック部(31)は、隣り合う屋根板材の連結用凸条部(2)の溝部(23)に嵌合した状態で、その全長が溝部(23)の底部を含む内面に密着当接するように構成されることを特徴とする請求項に記載の屋根板材。 The groove fitting hook portion (31) is in close contact with the inner surface including the bottom portion of the groove portion (23) in a state where the groove fitting hook portion (31) is fitted to the groove portion (23) of the connecting ridge portion (2) of the adjacent roof plate material. roofing plate according to claim 1, characterized in that it is configured to contact. 少なくとも、屋根板材本体部(1)、連結用凸条部(3)の本体部(30)および連結用凸条部(2)の湾曲状部(21)に縦リブ(6)が形成されることを特徴とする請求項1または2に記載の屋根板材。 Vertical ribs (6) are formed at least on the main body (30) of the roof plate material main body (1), the main body (30) of the connecting ridge (3), and the curved portion (21) of the connecting ridge (2). The roof board | plate material of Claim 1 or 2 characterized by the above-mentioned. 請求項1〜のいずれかに記載の屋根板材を用いた屋根構造であって、
各屋根板材(A)は、取付固定用板部(4)を固定手段(B)により屋根構造材(C)に固定することにより屋根に取付固定され、
隣り合う2つの屋根板材(A),(A)は、一方の屋根板材(A)の連結用凸条部(3)が、他方の屋根板材(A)の連結用凸条部(2)に被せられた状態で、前記連結用凸条部(3)の溝嵌合フック部(31)が前記連結用凸条部(2)の溝部(23)に嵌合し、且つ、前記連結用凸条部(3)の湾曲状の本体部(30)が、前記連結用凸条部(2)の湾曲状部(21)に重なり合うことにより、連結されることを特徴とする屋根構造。
It is a roof structure using the roofing board material in any one of Claims 1-3 ,
Each roof plate material (A) is fixedly attached to the roof by fixing the fixing plate portion (4) to the roof structure material (C) by the fixing means (B).
Two adjacent roof plate materials (A) and (A) have a connecting ridge (3) of one roof plate (A) connected to a connecting ridge (2) of the other roof plate (A). In the covered state, the groove fitting hook portion (31) of the connecting ridge portion (3) is fitted into the groove portion (23) of the connecting ridge portion (2), and the connecting protrusion The roof structure characterized in that the curved main body (30) of the strip (3) is connected by overlapping the curved portion (21) of the connecting convex strip (2).
各屋根板材(A)に対して、長手方向で間隔をおいて複数の補強金具(D)が配置され、
該補強金具(D)は、金属板を成形加工した部材であって、縦壁部(10)と、該縦壁部(10)の下端に連成され、縦壁部(10)の前面側に延出する取付固定部(11)と、縦壁部(10)の上端に連成され、縦壁部(10)の背面側に延出する鍔部(12)を備え、
縦壁部(10)の背面が連結用凸条部(2)の縦壁部(22)の外面に、取付固定部(11)の下面が取付固定用板部(4)の上面に、鍔部(12)の下面が湾曲状部(21)の一部の外面に、それぞれ当接するように屋根板材(A)に対して配置され、取付固定部(11)が、固定手段(B)により取付固定用板部(4)とともに屋根構造材(C)に固定されることを特徴とする請求項に記載の屋根構造。
For each roof plate (A), a plurality of reinforcing metal fittings (D) are arranged at intervals in the longitudinal direction,
The reinforcing metal fitting (D) is a member obtained by molding a metal plate, and is coupled to the vertical wall portion (10) and the lower end of the vertical wall portion (10), and is on the front side of the vertical wall portion (10). An attachment fixing part (11) extending to the upper end of the vertical wall part (10), and a flange part (12) extending to the back side of the vertical wall part (10),
The rear surface of the vertical wall portion (10) is on the outer surface of the vertical wall portion (22) of the connecting ridge portion (2), the lower surface of the mounting fixing portion (11) is on the upper surface of the mounting fixing plate portion (4), The lower surface of the part (12) is arranged with respect to the roof plate material (A) so that the lower surface of the curved part (21) is in contact with a part of the outer surface, and the mounting fixing part (11) is fixed by the fixing means (B). The roof structure according to claim 4 , wherein the roof structure is fixed to the roof structure material (C) together with the mounting fixing plate portion (4).
補強金具(D)は、縦壁部(10)の上下方向に沿って形成されるリブ(14)を1本以上有することを特徴とする請求項に記載の屋根構造。 The roof structure according to claim 5 , wherein the reinforcing metal fitting (D) has at least one rib (14) formed along the vertical direction of the vertical wall portion (10).
JP2014219797A 2014-10-29 2014-10-29 Roof plate material and roof structure Expired - Fee Related JP5941516B2 (en)

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