JP6239991B2

JP6239991B2 - Deck material unit

Info

Publication number: JP6239991B2
Application number: JP2014014617A
Authority: JP
Inventors: 上手　正行; 正行上手
Original assignee: 株式会社Ｓｋｎ
Priority date: 2014-01-29
Filing date: 2014-01-29
Publication date: 2017-11-29
Anticipated expiration: 2034-01-29
Also published as: JP2015140591A

Description

本発明は、根太又は平滑な床下地面上に並列配置されるデッキ材（床材、フロアー材を含む）と、それらのデッキ材を根太材又は平滑な床下地面上に固定するための固定具とによって構成されるデッキ材ユニットに関する。 The present invention relates to deck materials (including floor materials and floor materials) arranged in parallel on joists or smooth floor base surfaces, and fixing tools for fixing these deck materials on joists or smooth floor base surfaces. It is related with the deck material unit comprised by.

屋外或いは屋内においてデッキ（デッキ構造体）を構築しようとする場合、通常、所定の間隔をおいて配置した束石、或いは、その他の基礎の上に（又は、その上に配置した大引材の上に）、複数本の根太材を平行に配置し、更にその上に、根太材の長手方向と直交する向きで多数のデッキ材を並列配置し、各デッキ材を根太材に対して固定するという施工方法が実施されている。 When building a deck (deck structure) outdoors or indoors, usually a bunch of stones arranged at a predetermined interval or other foundations (or a large draw material placed on it) (Above), multiple joists are arranged in parallel, and further, a number of deck members are arranged in parallel in the direction perpendicular to the longitudinal direction of the joists, and each deck member is fixed to the joists. The construction method is being implemented.

特開２００６−０６３７４７号公報JP 2006-063747 A 特開２００６−１７７０３６号公報JP 2006-177036 A 特開２００８−０３１７５７号公報JP 2008-031757 A 特開２００９−０２４４１０号公報JP 2009-024410 A

屋外にデッキを構築する場合、雨水、砂、塵埃等がデッキ面上に滞留しないように、隣接する各デッキ材の間にそれぞれ５〜３ｍｍ程度の隙間（目地）を設け、雨水等がそれらの隙間からデッキ面の下方の空間へ速やかに落下するように構成することが多いが、商業施設等においては、コイン、鍵、カード類等の貴重品がデッキ材間の隙間から落下してしまうという事態をなるべく回避できるように、目地部に落下防止用パッキン、目皿等を配したり、落下止めフランジを形状に施したりしている。 When building a deck outdoors, a gap (joint) of about 5 to 3 mm is provided between each adjacent deck material so that rainwater, sand, dust, etc. do not stay on the deck surface. It is often configured to quickly fall from the gap to the space below the deck surface, but in commercial facilities, valuables such as coins, keys, cards, etc. will fall from the gap between the deck materials. In order to avoid the situation as much as possible, a drop-preventing packing, a countersink, etc. are arranged on the joint, or a fall-proof flange is provided in the shape.

このように、デッキの目地幅については、デッキの用途や設置場所に応じてニーズが多様化しているが、現在市場で流通しているデッキ材やその固定具は、施工できる目地幅が製品毎に固定されており、汎用性が無いという問題がある。 In this way, the needs of the joint width of the deck are diversified according to the purpose and the installation location of the deck. There is a problem that there is no versatility.

本発明は、上記のような従来技術における問題を解決しようとするものであって、一種類の製品で、大、中、小、三通りの目地幅のデッキを構築することができ、しかも、施工を正確に、かつ、熟練を要することなく、極めて容易に行うことができるデッキ材ユニットを提供することを目的とする。 The present invention is intended to solve the above-described problems in the prior art, and a single type of product can be used to construct large, medium, small, and three joint width decks, It is an object of the present invention to provide a deck material unit that can be constructed accurately and easily without requiring skill.

本発明に係るデッキ材ユニットは、デッキ材及び固定具によって構成され、デッキ材は、第一デッキ面と、その反対側の、第一デッキ面よりも横幅が大きい第二デッキ面と、左右の側縁部とを有し、長手方向と直交する断面の形状が長手方向について一定で、左右の両側縁部が鏡面対称的な形状となっており、デッキ材の各側縁部には、デッキ材の厚さ方向の中間位置において、外側側方からデッキ材の内側へ向かって所定の深さで抉れた大溝がそれぞれ形成され、デッキ材の各側縁部において、大溝よりも第二デッキ面側の第二顎部が、大溝よりも第一デッキ面側の第一顎部よりも外側へ突出し、第一デッキ面側の第一顎部における大溝側の角部、及び、第二デッキ面側の第二顎部における大溝側の角部に、段部がそれぞれ形成され、第二デッキ面側の第二顎部の段部と大溝との間の位置に、第一顎部の方へ向かって突出する突状部が形成されるとともに、突状部と大溝との間の位置に、第二デッキ面の方へ向かって抉れた小溝が形成され、固定具は、上下に貫通するビス穴が形成され本体基部と、本体基部から左右側方へそれぞれ突出する側方フラップと、本体基部の底面から所定幅で下方へ突出する脚部と、本体基部の下半部の左右側方へ所定間隔を置いた位置においてそれぞれ下方へ向かって突出する垂直フラップとによって構成され、第二デッキ面よりも横幅が小さい第一デッキ面が上方となる向きで二つのデッキ材を隣接配置し、第一顎部よりも外側へ突出した第二顎部同士を対向させて、固定具の脚部を挟持させる形とした場合に、固定具の左右の側方フラップが、二つのデッキ材の大溝内にそれぞれ進入し、かつ、左右の垂直フラップが、二つのデッキ材の小溝内に係合するように構成されていることを特徴としている。 The deck material unit according to the present invention includes a deck material and a fixture, and the deck material includes a first deck surface, a second deck surface on the opposite side having a width greater than the first deck surface, The cross-sectional shape perpendicular to the longitudinal direction is constant in the longitudinal direction, and the left and right side edges are mirror-symmetrical shapes. At the middle position in the thickness direction of the material, large grooves are formed at a predetermined depth from the outside side to the inside of the deck material, and at each side edge of the deck material, the second deck is larger than the large groove. The second jaw portion on the surface side protrudes outward from the first jaw portion on the first deck surface side with respect to the large groove, the corner portion on the large groove side in the first jaw portion on the first deck surface side, and the second deck Steps are formed at the corners on the large groove side of the second jaw on the surface side, A protrusion protruding toward the first jaw is formed at a position between the step of the second jaw on the stick side and the large groove, and between the protrusion and the large groove. A small groove is formed in the position toward the second deck surface, and the fixing tool is formed with a screw hole penetrating vertically, and a main body base and a side flap protruding from the main body base to the left and right sides respectively. And a leg portion that protrudes downward with a predetermined width from the bottom surface of the main body base, and a vertical flap that protrudes downward at each of the left and right sides of the lower half of the main body base at a predetermined interval, Two deck materials are arranged adjacent to each other with the first deck surface having a smaller width than the second deck surface facing upward, and the second jaws projecting outward from the first jaw part are opposed to each other, and the fixture The left and right side flaps of the fixture are One of the respectively entering the large groove of the deck member, and left and right vertical flaps, is characterized by being configured to engage within the minor groove of two decking.

尚、本体基部から左右側方へそれぞれ突出する側方フラップは、それぞれ主フラップと、主フラップよりも薄肉で可撓性を有する弾性フラップとによって構成され、各弾性フラップの先端部には、上方へ向かって突出する係止部が形成され、第二デッキ面よりも横幅が小さい第一デッキ面が上方となる向きで二つのデッキ材を隣接配置し、第一顎部よりも外側へ突出した第二顎部同士を対向させて、固定具の脚部を挟持させる形とした場合に、側方フラップのうち主フラップの下面が、大溝の下側の面に当接するように、また、側方フラップのうち弾性フラップが、僅かに下方へ変形した状態で、係止部が大溝の上側の面に当接するように、固定具及びデッキ材の大溝の形状及び寸法が設定されていることが好ましい。 The side flaps that protrude from the main body base to the left and right sides are each composed of a main flap and an elastic flap that is thinner and more flexible than the main flap. A locking part that protrudes toward the top is formed, and the two deck materials are arranged adjacent to each other so that the first deck surface, which is smaller in width than the second deck surface, faces upward, and protrudes outward from the first jaw part. When the second jaws face each other and the leg part of the fixture is clamped, the lower surface of the main flap of the side flaps comes into contact with the lower surface of the large groove, and the side The shape and size of the fixing device and the large groove of the deck material may be set so that the locking portion is in contact with the upper surface of the large groove while the elastic flap of the side flap is slightly deformed downward. preferable.

また、デッキ材の第一顎部の側面は、第一顎部の段部側よりも第一デッキ面側の方が外側へ突出するように傾斜しており、第二顎部の側面も、第二顎部の段部側よりも第二デッキ面側の方が外側へ突出するように傾斜していることが好ましい。 Further, the side surface of the first jaw portion of the deck material is inclined so that the first deck surface side protrudes outward rather than the step side of the first jaw portion, and the side surface of the second jaw portion is also It is preferable to incline so that the second deck surface side protrudes outward than the step side of the second jaw.

本発明のデッキ材ユニットは、第二デッキ面よりも横幅が小さい第一デッキ面が上方となる向きで二つのデッキ材を隣接配置した場合に、大きな目地幅（例えば５ｍｍ）でデッキを構築することができ、反対に、第二デッキ面が上方となる向きで二つのデッキ材を隣接配置した場合に、小さな目地幅（例えば１ｍｍ）でデッキを構築することができる。更に、第一デッキ面が上方となる向きのデッキ材と、第二デッキ面が上方となる向きのデッキ材とが、交互に隣接するように配置した場合には、中間の大きさの目地幅（例えば３ｍｍ）でデッキを構築することができる。 The deck material unit of the present invention constructs a deck with a large joint width (for example, 5 mm) when two deck materials are arranged adjacent to each other with the first deck surface having a width smaller than the second deck surface facing upward. Conversely, when two deck materials are arranged adjacent to each other with the second deck surface facing upward, the deck can be constructed with a small joint width (for example, 1 mm). In addition, when the deck material with the first deck surface facing upward and the deck material with the second deck surface facing upward are arranged so as to be alternately adjacent, the joint width of an intermediate size The deck can be constructed with (for example, 3 mm).

図１は、本発明に係るデッキ材ユニットを構成するデッキ材２の断面図である。FIG. 1 is a cross-sectional view of a deck material 2 constituting a deck material unit according to the present invention. 図２は、図１のデッキ材２の一方の側縁部２２ａの拡大図である。FIG. 2 is an enlarged view of one side edge 22a of the deck material 2 of FIG. 図３は、本発明に係るデッキ材ユニットを構成する固定具４の斜視図である。FIG. 3 is a perspective view of the fixture 4 constituting the deck material unit according to the present invention. 図４は、図３の固定具４の正面図である。FIG. 4 is a front view of the fixture 4 of FIG. 図５は、図３の固定具４の側面図である。FIG. 5 is a side view of the fixture 4 of FIG. 図６は、図５に示すＸ−Ｘ線による固定具４の断面斜視図である。6 is a cross-sectional perspective view of the fixture 4 taken along line XX shown in FIG. 図７は、図５に示すＹ−Ｙ線による固定具４の断面斜視図である。FIG. 7 is a cross-sectional perspective view of the fixture 4 along the line YY shown in FIG. 図８は、本発明に係るデッキ材ユニットを用いてデッキを施工する方法（目地幅５ｍｍ）の説明図である。FIG. 8 is an explanatory view of a method for constructing a deck using the deck material unit according to the present invention (joint width 5 mm). 図９は、本発明に係るデッキ材ユニットを用いてデッキを施工する方法（目地幅３ｍｍ）の説明図である。FIG. 9 is an explanatory diagram of a method of constructing a deck using the deck material unit according to the present invention (joint width 3 mm). 図１０は、本発明に係るデッキ材ユニットを用いてデッキを施工する方法（目地幅３ｍｍ）の説明図である。FIG. 10 is an explanatory diagram of a method of constructing a deck using the deck material unit according to the present invention (joint width 3 mm). 図１１は、本発明に係るデッキ材ユニットを用いてデッキを施工する方法（目地幅１ｍｍ）の説明図である。FIG. 11 is an explanatory diagram of a method for constructing a deck using a deck material unit according to the present invention (joint width 1 mm).

以下、添付図面に沿って本発明の実施形態について説明する。図１は、本発明に係るデッキ材ユニットを構成するデッキ材２の断面図（長手方向と直交する断面を示す図）、図２は、その一方の側縁部２２ａの拡大図、図３は、本発明に係るデッキ材ユニットを構成する固定具４の斜視図、図４はその正面図、図５はその側面図、図６は、図５に示すＸ−Ｘ線による固定具４の断面斜視図、図７は、図５に示すＹ−Ｙ線による固定具４の断面斜視図である。 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a cross-sectional view of a deck material 2 constituting a deck material unit according to the present invention (a view showing a cross section perpendicular to the longitudinal direction), FIG. 2 is an enlarged view of one side edge portion 22a, and FIG. FIG. 4 is a front view thereof, FIG. 5 is a side view thereof, and FIG. 6 is a cross-sectional view of the fixture 4 taken along line XX shown in FIG. FIG. 7 is a cross-sectional perspective view of the fixture 4 along the line YY shown in FIG.

デッキ材２は、図１に示すように、第一デッキ面２１ａと、その反対側の第二デッキ面２１ｂと、左右の側縁部２２ａ，２２ｂとを有している。このデッキ材２は、長手方向と直交する断面の形状が長手方向について一定であり、長手方向のいずれの位置における断面形状も図１に示す形状となり、また、長手方向の両端面の輪郭も、図１に示す断面の輪郭と同一の形状となるように構成されている。このデッキ材２は、根太材上などに配置して設置する際、図１に示すような向きで（即ち、第一デッキ面２１ａが上方となる向きで）使用することもできるし、上下を入れ替えて、第二デッキ面２１ｂが上方となる向きで使用することもできる。また、デッキ材２の左右の両側縁部２２ａ，２２ｂは、図１に示すように鏡面対称的な形状となっている。 As shown in FIG. 1, the deck material 2 includes a first deck surface 21a, a second deck surface 21b opposite to the first deck surface 21a, and left and right side edges 22a and 22b. This deck material 2 has a constant cross-sectional shape in the longitudinal direction, the cross-sectional shape at any position in the longitudinal direction is the shape shown in FIG. 1, and the contours of both end faces in the longitudinal direction are It is comprised so that it may become the same shape as the outline of the cross section shown in FIG. The deck material 2 can be used in the orientation shown in FIG. 1 (that is, in the orientation in which the first deck surface 21a is on the upper side) when placed and installed on a joist or the like. The second deck surface 21b can also be used in an upward direction. Further, the left and right side edge portions 22a and 22b of the deck material 2 have a mirror-symmetric shape as shown in FIG.

本実施形態においては、デッキ材２は、厚さ寸法が２５ｍｍに設定されており、図２に示すように、側縁部２２ａには、デッキ材２の厚さ方向（高さ方向）の中間位置において、外側側方からデッキ材２の内側中心へ向かって所定の深さで抉れた大溝２３が形成されている。また、図２に示すように、側縁部２２ａにおける、大溝２３よりも第二デッキ面２１ｂ側の部分（第二顎部２４ｂ）は、大溝２３よりも第一デッキ面２１ａ側の部分（第一顎部２４ａ）よりも外側へ僅かに（本実施形態においては２ｍｍ）突出している。従って、デッキ材２は、第二デッキ面２１ｂの方が、第一デッキ面２１ａよりも横幅が大きい（４ｍｍ大きい）ということになる。 In the present embodiment, the deck material 2 has a thickness dimension set to 25 mm. As shown in FIG. 2, the side edge portion 22 a has an intermediate portion in the thickness direction (height direction) of the deck material 2. At the position, a large groove 23 is formed which is rolled at a predetermined depth from the outer side toward the inner center of the deck material 2. Further, as shown in FIG. 2, the portion of the side edge portion 22 a closer to the second deck surface 21 b than the large groove 23 (second jaw portion 24 b) is the portion closer to the first deck surface 21 a than the large groove 23 (the second jaw portion 24 b). It projects slightly outward (2 mm in this embodiment) from the one jaw 24a). Accordingly, the deck material 2 has a larger width (4 mm larger) on the second deck surface 21b than on the first deck surface 21a.

第一顎部２４ａにおける第一デッキ面２１ａ側の角部には、面取り２５ａが形成されており、第二顎部２４ｂにおける第二デッキ面２１ｂ側の角部にも、面取り２５ｂが形成されている。また、第一顎部２４ａにおける大溝２３側の角部には、段部２６ａが形成されており、第二顎部２４ｂにおける大溝２３側の角部にも、段部２６ｂが形成されている。 A chamfer 25a is formed at the corner of the first jaw 24a on the first deck surface 21a side, and a chamfer 25b is also formed at the corner of the second jaw 24b on the second deck surface 21b side. Yes. Further, a step 26a is formed at the corner of the first jaw 24a on the large groove 23 side, and a step 26b is also formed at the corner of the second jaw 24b on the large groove 23 side.

更に、第二顎部２４ｂにおける段部２６ｂと大溝２３との間の位置には、第一顎部２４ａの方へ向かって突出する突状部２７が形成されるとともに、突状部２７と大溝２３との間の位置には、第二デッキ面２１ｂの方へ向かって抉れた小溝２８が形成されている。また、第一顎部２４ａの側面２９ａは、段部２６ａ側よりも第一デッキ面２１ａ側（面取り２５ａ側）の方が僅かに外側へ突出するように傾斜しており、同様に、第二顎部２４ｂの側面２９ｂも、段部２６ｂ側よりも第二デッキ面２１ｂ側（面取り２５ｂ側）の方が僅かに外側へ突出するように傾斜している。尚、本実施形態においては、第一デッキ面２１ａ及び第二デッキ面２１ｂが水平となるようにデッキ材２を保持した場合における、垂直線を基準とする側面２９ａ，２９ｂの傾斜角度は、いずれも４．５°に設定されている。 Further, a protruding portion 27 protruding toward the first jaw portion 24a is formed at a position between the step portion 26b and the large groove 23 in the second jaw portion 24b, and the protruding portion 27 and the large groove are formed. A small groove 28 is formed at a position between the second deck surface 21b and the second deck surface 21b. Further, the side surface 29a of the first jaw portion 24a is inclined so that the first deck surface 21a side (the chamfer 25a side) slightly protrudes outward than the stepped portion 26a side. The side surface 29b of the jaw 24b is also inclined so that the second deck surface 21b side (the chamfer 25b side) slightly protrudes outward than the stepped portion 26b side. In this embodiment, when the deck material 2 is held so that the first deck surface 21a and the second deck surface 21b are horizontal, the inclination angles of the side surfaces 29a and 29b with respect to the vertical line are Is also set to 4.5 °.

固定具４は、図３〜図７に示すように、本体基部４１と、側方フラップ４２ａ，４２ｂと、頭部４３（側方フラップ４２ａ，４２ｂよりも上方へ突出している部分）と、脚部４４と、垂直フラップ４５ａ，４５ｂとによって構成されている。側方フラップ４２ａ，４２ｂは、本体基部４１から左右側方へそれぞれ突出するように構成されており、それぞれ主フラップ５１（５１ａ〜５１ｃ）と、主フラップ５１（５１ａ〜５１ｃ）よりも薄肉で可撓性を有する弾性フラップ５２（５２ａ，５２ｂ）とによって構成されている。尚、弾性フラップ５２（５２ａ，５２ｂ）の先端部には、上方へ向かって突出する係止部５３が形成されている。 As shown in FIGS. 3 to 7, the fixture 4 includes a main body base 41, side flaps 42 a and 42 b, a head 43 (a portion protruding upward from the side flaps 42 a and 42 b), legs, It is comprised by the part 44 and the vertical flaps 45a and 45b. The side flaps 42a and 42b are configured to protrude from the main body base 41 to the left and right sides, respectively, and can be thinner than the main flap 51 (51a to 51c) and the main flap 51 (51a to 51c), respectively. It is comprised by the elastic flap 52 (52a, 52b) which has flexibility. In addition, the latching | locking part 53 which protrudes upwards is formed in the front-end | tip part of the elastic flap 52 (52a, 52b).

頭部４３及び本体基部４１の中央には、上面から本体基部４１の底面まで貫通するビス穴５４が形成されている。脚部４４は、本体基部４１の底面の中央（左右方向についての中央）から所定幅で下方へ突出するように構成され、主脚部５５ａ，５５ｂと、主脚部５５ａ，５５ｂよりも薄肉で可撓性を有する弾性脚部５６ａ〜５５ｄとによって構成されている。垂直フラップ４５ａ，４５ｂは、本体基部４１の下半部の左右側方へ所定間隔を置いた位置において、側方フラップ４２ａ，４２ｂの下面からそれぞれ下方へ向かって突出するように構成されている。尚、垂直フラップ４５ａ，４５ｂは、本体基部４１の側部を基端とし、本体基部４１の下半部の左右側方へ所定間隔を置いた位置において先端側が下方へ突出するように構成してもよい。 A screw hole 54 penetrating from the upper surface to the bottom surface of the main body base 41 is formed at the center of the head 43 and the main body base 41. The leg portion 44 is configured to protrude downward with a predetermined width from the center (the center in the left-right direction) of the bottom surface of the main body base 41, and is thinner than the main leg portions 55a and 55b and the main leg portions 55a and 55b. It is comprised by the elastic leg parts 56a-55d which have flexibility. The vertical flaps 45a and 45b are configured to protrude downward from the lower surfaces of the side flaps 42a and 42b, respectively, at a position spaced a predetermined distance from the left and right sides of the lower half of the main body base 41. The vertical flaps 45a and 45b are configured so that the side of the main body base 41 is the base end, and the front end protrudes downward at a position spaced a predetermined distance from the left and right sides of the lower half of the main body base 41. Also good.

本実施形態に係るデッキ材ユニットは、以上に説明したようなデッキ材２及び固定具４によって構成されるものであり、隣接するデッキ材２同士の間隔（目地幅）を、必要に応じて大（５ｍｍ）、中（３ｍｍ）、小（１ｍｍ）の三通りに設定することができる。以下、本実施形態に係るデッキ材ユニット（デッキ材２及び固定具４）を用いて、目地幅が異なる三通りのデッキ（デッキ構造体）を施工する方法について説明する。 The deck material unit according to the present embodiment is constituted by the deck material 2 and the fixture 4 as described above, and the interval (joint width) between the adjacent deck materials 2 is increased as necessary. (5 mm), medium (3 mm), and small (1 mm) can be set. Hereinafter, a method of constructing three decks (deck structures) having different joint widths using the deck material unit (deck material 2 and fixture 4) according to the present embodiment will be described.

１．目地幅５ｍｍのデッキの施工方法
まず、図８（１）に示すように、デッキ材２Ａを根太材６の上に、第一デッキ面２１ａが上方となる向きで配置する。次に、固定具４を、デッキ材２Ａの側部に取り付ける。具体的には、脚部４４の下端が根太材６上に接触し、脚部４４の側面がデッキ材２Ａの第二顎部２４ｂの側面２９ｂに接触した状態で、側方フラップ４２ａをデッキ材２Ａの大溝２３内に進入させ、かつ、垂直フラップ４５ａの下端をデッキ材２Ａの小溝２８に係合させて固定具４を取り付ける。 1. First, as shown in FIG. 8A, the deck material 2A is arranged on the joist material 6 with the first deck surface 21a facing upward. Next, the fixture 4 is attached to the side portion of the deck material 2A. Specifically, the side flap 42a is placed on the deck material while the lower end of the leg portion 44 is in contact with the joist member 6 and the side surface of the leg portion 44 is in contact with the side surface 29b of the second jaw portion 24b of the deck material 2A. The fixing tool 4 is attached by entering the large groove 23 of 2A and engaging the lower end of the vertical flap 45a with the small groove 28 of the deck material 2A.

尚、側方フラップ４２ａを大溝２３内に進入させたとき、側方フラップ４２ａのうち、主フラップ５１の下面が、大溝２３の下側の面に当接するように、また、側方フラップ４２ａのうち、弾性フラップ５２は、僅かに下方へ変形した状態で、係止部５３が大溝２３の上側の面に当接するように、固定具４及び大溝２３の形状、寸法が設定されている。また、垂直フラップ４５ａの下端を小溝２８に係合させたとき、垂直フラップ４５ａが僅かに外側（デッキ材２Ａ側）へ変形した状態で小溝２８内に係合するように、固定具４及び小溝２８の形状、寸法が設定されている。 When the side flap 42a is entered into the large groove 23, the lower surface of the main flap 51 in the side flap 42a is in contact with the lower surface of the large groove 23, and the side flap 42a Among them, the shape and dimensions of the fixture 4 and the large groove 23 are set so that the elastic flap 52 is slightly deformed downward so that the locking portion 53 contacts the upper surface of the large groove 23. Further, when the lower end of the vertical flap 45a is engaged with the small groove 28, the fixture 4 and the small groove so that the vertical flap 45a is engaged with the small groove 28 in a state of being slightly deformed to the outside (deck material 2A side). 28 shapes and dimensions are set.

次に、隣接するデッキ材２Ｂを、デッキ材２Ａと同様に、第一デッキ面２１ａが上方となる向きで根太材６上に配置し、デッキ材２Ａの側部に取り付けられた固定具４の反対側の部分に対し、デッキ材２Ｂの側部を同様に接合させる。具体的には、デッキ材２Ｂの第二顎部２４ｂの側面２９ｂを脚部４４の側面に当接させ、デッキ材２Ｂの大溝２３内に側方フラップ４２ｂを進入させ、かつ、垂直フラップ４５ｂの下端をデッキ材２Ｂの小溝２８に係合させる。 Next, the adjacent deck member 2B is arranged on the joist member 6 with the first deck surface 21a facing upward, like the deck member 2A, and the fixing member 4 attached to the side portion of the deck member 2A. The side part of the deck material 2B is similarly joined to the opposite part. Specifically, the side surface 29b of the second jaw portion 24b of the deck material 2B is brought into contact with the side surface of the leg portion 44, the side flap 42b is advanced into the large groove 23 of the deck material 2B, and the vertical flap 45b The lower end is engaged with the small groove 28 of the deck material 2B.

この状態で、図８（１）に示すビス７を、固定具４のビス穴５４内に差し込み、図８（２）に示すように、下端が根太材６内にくい込み、ビス頭７１が固定具４内に収まるまでビス７を締め付ける。その結果、デッキ材２Ａ，２Ｂが、固定具４によって根太材６上にしっかりと固定されることになる。 In this state, the screw 7 shown in FIG. 8 (1) is inserted into the screw hole 54 of the fixture 4, and the lower end is inserted into the joist 6 as shown in FIG. 8 (2), and the screw head 71 is fixed. Tighten the screw 7 until it fits in the tool 4. As a result, the deck materials 2 </ b> A and 2 </ b> B are firmly fixed on the joist material 6 by the fixing tool 4.

尚、図８（１）に示すように、第二デッキ面２１ｂよりも横幅が小さい第一デッキ面２１ａが上方となる向きでデッキ材２Ａ，２Ｂを配置し、第一顎部２４ａよりも外側へ２ｍｍ突出した第二顎部２４ｂ，２４ｂ同士を対向させて、固定具４の脚部４４を挟持させる形とした場合、対向する第二顎部２４ｂ，２４ｂ同士の間隔は、脚部４４の幅寸法に従って、最小部で１ｍｍ、最大部で１．５ｍｍとなる。 As shown in FIG. 8 (1), the deck materials 2A and 2B are arranged in such a direction that the first deck surface 21a whose width is smaller than the second deck surface 21b is on the upper side, and outside the first jaw portion 24a. When the second jaws 24b, 24b projecting 2 mm are opposed to each other and the legs 44 of the fixture 4 are sandwiched, the distance between the opposed second jaws 24b, 24b is the distance between the legs 44. According to the width dimension, the minimum part is 1 mm and the maximum part is 1.5 mm.

そして、第二顎部２４ｂは、第一顎部２４ａよりも外側へ２ｍｍ突出しているため、上方において対向する第一顎部２４ａ，２４ａ同士の間隔は、最小部で５ｍｍとなり、その結果、デッキ材２Ａ，２Ｂ間の目地幅は５ｍｍとなる。このように、大きい目地幅でデッキを施工する場合には、すべてのデッキ材２を、第一デッキ面２１ａが上方となる向きで配置し、隣接するデッキ材２Ａ，２Ｂの第二顎部２４ｂ，２４ｂ同士の間に脚部４４を挟持させるようにして固定具４を配置し、ビス７の締め付けを行うことにより、デッキ材２Ａ，２Ｂ間の目地幅を５ｍｍとすることができる。 And since the 2nd jaw part 24b protrudes 2 mm outward from the 1st jaw part 24a, the space | interval of the 1st jaw parts 24a and 24a which opposes upwards becomes 5 mm in the minimum part, As a result, deck The joint width between the materials 2A and 2B is 5 mm. Thus, when constructing a deck with a large joint width, all the deck materials 2 are arranged with the first deck surface 21a facing upward, and the second jaw portions 24b of the adjacent deck materials 2A and 2B are disposed. , 24b, the fixture 4 is disposed so as to sandwich the leg portion 44, and the screws 7 are tightened, so that the joint width between the deck members 2A and 2B can be 5 mm.

ところで、この種のデッキ材２の固定には、強度的な観点から、最低でも直径３〜４ｍｍ程度のビス７を用いることが望ましいが、上述したように、ビス７が通過する第二顎部２４ｂ，２４ｂ同士の間隔は１〜１．５ｍｍとなるため、図８（１）に示すような状態で、ビス穴５４に直径３〜４ｍｍのビス７を差し込んで締め付けを行うと、デッキ材２Ａ，２Ｂの間隔がビス７によって押し拡げられてしまい、目地幅が不均一になってしまうことが懸念される。 By the way, for fixing this kind of deck material 2, it is desirable to use a screw 7 having a diameter of about 3 to 4 mm at least from the viewpoint of strength. However, as described above, the second jaw part through which the screw 7 passes is used. Since the interval between 24b and 24b is 1 to 1.5 mm, when the screw 7 having a diameter of 3 to 4 mm is inserted into the screw hole 54 and tightened in the state shown in FIG. , 2B is widened by the screw 7 and the joint width becomes uneven.

しかしながら本実施形態においては、いずれも第一デッキ面２１ａが上方となる向きでデッキ材２Ａ，２Ｂを配置し、それらの第二顎部２４ｂ，２４ｂの間に脚部４４を挟持させるようにして固定具４を配置した場合、図８（１）に示すように、各デッキ材２Ａ，２Ｂの小溝２８，２８内に、固定具４の垂直フラップ４５ａ，４５ｂの下端が係合するように構成されており、その結果、デッキ材２Ａ，２Ｂにおける側方への移動（左右への逃げ）が規制されることになるため、ビス穴５４にビス７を差し込んで締め付けを行った場合、ビス７は、狭小な第二顎部２４ｂ，２４ｂ間の領域を、ビス７の先端のキリ込み部７２によって、接触する部位を部分的に削りながら（傷つけながら）通過していくことになり（図８（２）参照）、デッキ材２Ａ，２Ｂの間隔、及び、目地幅が拡がって不均一になるという問題を好適に回避することができる。 However, in the present embodiment, the deck materials 2A and 2B are arranged with the first deck surface 21a facing upward, and the leg portion 44 is sandwiched between the second jaw portions 24b and 24b. When the fixture 4 is arranged, as shown in FIG. 8 (1), the lower ends of the vertical flaps 45a and 45b of the fixture 4 are engaged with the small grooves 28 and 28 of the deck materials 2A and 2B. As a result, the lateral movement (escape to the left and right) of the deck materials 2A and 2B is restricted. Therefore, when the screw 7 is inserted into the screw hole 54 and tightened, the screw 7 Will pass through the narrow region between the second jaws 24b, 24b while partly scraping (damaging) the part to be contacted by the slit 72 at the tip of the screw 7 (FIG. 8). (See (2)), deck material A, 2B interval, and can be suitably avoid the problem of joint width becomes uneven spread.

２．目地幅３ｍｍのデッキの施工方法
大間隔のデッキを施工する場合には、上述の通り、すべてのデッキ材２を、第一デッキ面２１ａが上方となる向きで根太材６上に配置することになるが、中間隔のデッキを施工する場合には、第一デッキ面２１ａが上方となる向きのデッキ材２と、第二デッキ面２１ｂが上方となる向きのデッキ材２とが、交互に隣接するように配置する。 2. Construction method of deck with joint width of 3 mm When constructing a deck with a large interval, as described above, all the deck materials 2 are arranged on the joists 6 with the first deck surface 21a facing upward. However, when constructing a deck with a medium interval, the deck material 2 with the first deck surface 21a facing upward and the deck material 2 with the second deck surface 21b facing upward are alternately adjacent. Arrange to do.

具体的には、図９（１）に示すように、第一デッキ面２１ａが上方となる向きのデッキ材２Ａを先に配置し、これに隣接して、第二デッキ面２１ｂが上方となる向きのデッキ材２Ｂを配置する場合、大間隔のデッキを施工する場合と同様の要領で、固定具４を、先に配置したデッキ材２Ａの側部に取り付ける。具体的には、脚部４４の下端が根太材６上に接触し、脚部４４の側面がデッキ材２Ａの第二顎部２４ｂの側面２９ｂに接触した状態で、側方フラップ４２ａをデッキ材２Ａの大溝２３内に進入させ、かつ、垂直フラップ４５ａの下端をデッキ材２Ａの小溝２８に係合させて固定具４を取り付ける。 Specifically, as shown in FIG. 9 (1), the deck material 2A with the first deck surface 21a facing upward is disposed first, and adjacent to this, the second deck surface 21b is facing upward. When arranging the facing deck material 2B, the fixture 4 is attached to the side of the deck material 2A previously arranged in the same manner as when constructing a deck with a large interval. Specifically, the side flap 42a is placed on the deck material while the lower end of the leg portion 44 is in contact with the joist member 6 and the side surface of the leg portion 44 is in contact with the side surface 29b of the second jaw portion 24b of the deck material 2A. The fixing tool 4 is attached by entering the large groove 23 of 2A and engaging the lower end of the vertical flap 45a with the small groove 28 of the deck material 2A.

次に、図９（１）に示すビス７を、固定具４のビス穴５４内に差し込み、下端が根太材６内にくい込み、ビス頭７１が固定具４内に収まるまでビス７を締め付けて、デッキ材２Ａ及び固定具４を根太材６に対して固定する。そして、隣接するデッキ材２Ｂを、デッキ材２Ａとは反対に、第二デッキ面２１ｂが上方となる向きで根太材６上に配置し、図９（１）に示す位置から、固定具４の方向へスライドさせる。 Next, the screw 7 shown in FIG. 9 (1) is inserted into the screw hole 54 of the fixture 4, the lower end is inserted into the joist 6, and the screw 7 is tightened until the screw head 71 is fitted in the fixture 4. The deck material 2 </ b> A and the fixture 4 are fixed to the joist material 6. Then, the adjacent deck material 2B is arranged on the joist material 6 with the second deck surface 21b facing upward, opposite to the deck material 2A, and from the position shown in FIG. Slide in the direction.

そうすると、図９（２）に示すように、デッキ材２Ａの側部に取り付けられた固定具４の反対側の部分に対し、デッキ材２Ｂの側部が接合した状態となる。具体的には、デッキ材２Ｂの第一顎部２４ａの側面２９ａがビス７に当接し、垂直フラップ４５ｂがデッキ材２Ｂの段部２６ａの奥側に当接し、側方フラップ４２ｂがデッキ材２Ｂの大溝２３内に進入する。尚このとき、側方フラップ４２ｂの主フラップ５１の下面は、大溝２３の下側の面に当接し、弾性フラップ５２は、僅かに下方へ変形した状態で、係止部５３が大溝２３の上側の面に当接する。その結果、デッキ材２Ｂも、デッキ材２Ａと同様に、固定具４によって根太材６上に固定されることになり、この場合の目地幅は３ｍｍとなる。 Then, as shown in FIG. 9 (2), the side portion of the deck material 2B is joined to the opposite side portion of the fixture 4 attached to the side portion of the deck material 2A. Specifically, the side surface 29a of the first jaw portion 24a of the deck material 2B is in contact with the screw 7, the vertical flap 45b is in contact with the back side of the step portion 26a of the deck material 2B, and the side flap 42b is in the deck material 2B. It enters into the large groove 23. At this time, the lower surface of the main flap 51 of the side flap 42b is in contact with the lower surface of the large groove 23, and the elastic flap 52 is slightly deformed downward. It abuts on the surface. As a result, similarly to the deck material 2A, the deck material 2B is also fixed on the joist material 6 by the fixture 4, and the joint width in this case is 3 mm.

尚、第一デッキ面２１ａが上方となる向きで配置したデッキ材２Ａに対して固定具４を取り付けた状態（固定具４の脚部４４の側面がデッキ材２Ａの第二顎部２４ｂの側面２９ｂに接触した状態で、側方フラップ４２ａをデッキ材２Ａの大溝２３内に進入させ、かつ、垂直フラップ４５ａの下端をデッキ材２Ａの小溝２８に係合させた状態）において、ビス穴５４にビス７を差し込んで締め付けを行うと、ビス７の先端が、第二顎部２４ｂの側面２９ｂにぶつかることになるため、固定具４が側方へずれてしまい、目地幅が拡がってしまうことが懸念されるが、垂直フラップ４５ａの下端がデッキ材２Ａの小溝２８に係合しているため、固定具４の側方への移動が規制されることになり、ビス７は、先端のキリ込み部７２によって、第二顎部２４ｂの側面２９ｂを部分的に削りながら（傷つけながら）通過していくことになり（図９（２）参照）、その結果、固定具４が側方へずれて、目地幅が拡がってしまうという問題を好適に回避することができる。 The state in which the fixture 4 is attached to the deck material 2A arranged with the first deck surface 21a facing upward (the side surface of the leg portion 44 of the fixture 4 is the side surface of the second jaw portion 24b of the deck material 2A). 29b, the side flap 42a is inserted into the large groove 23 of the deck material 2A and the lower end of the vertical flap 45a is engaged with the small groove 28 of the deck material 2A). When the screw 7 is inserted and tightened, the tip end of the screw 7 collides with the side surface 29b of the second jaw 24b, so that the fixture 4 is displaced laterally, and the joint width is increased. Although the concern is that the lower end of the vertical flap 45a is engaged with the small groove 28 of the deck material 2A, the lateral movement of the fixture 4 will be restricted, and the screw 7 will be cut into the tip. The second jaw by means of part 72 The side surface 29b of 4b is partially scraped (damaged) and passes (see FIG. 9 (2)). As a result, the fixture 4 is shifted to the side, and the joint width is expanded. The problem can be preferably avoided.

一方、図９の場合とは反対に、第二デッキ面２１ｂが上方となる向きのデッキ材２Ａを先に配置し、これに隣接して、第一デッキ面２１ａが上方となる向きのデッキ材２Ｂを配置する場合、図１０（１）に示すように、固定具４を、脚部４４の側面がデッキ材２Ａの第一顎部２４ａの側面２９ａから僅かな間隔を置いた位置において脚部４４の下端が根太材６上に接触し、側方フラップ４２ａがデッキ材２Ａの大溝２３内に進入し、かつ、反対側の側方フラップ４２ｂが下がる方向へ僅かに（約３°）傾けた状態とし、この状態でビス穴５４内にビス７を差し込み、締め付けを行って、デッキ材２Ａ及び固定具４を根太材６に対して固定する。 On the other hand, contrary to the case of FIG. 9, the deck material 2A with the second deck surface 21b facing upward is disposed first, and adjacent to this, the deck material with the first deck surface 21a facing upward. When 2B is arranged, as shown in FIG. 10 (1), the fixture 4 is attached to the leg portion 44 at a position where the side surface of the leg portion 44 is slightly spaced from the side surface 29a of the first jaw portion 24a of the deck material 2A. The lower end of 44 contacts the joist member 6, the side flap 42 a enters the large groove 23 of the deck material 2 A, and the side flap 42 b on the opposite side is slightly inclined (about 3 °). In this state, the screw 7 is inserted into the screw hole 54 and tightened to fix the deck material 2A and the fixture 4 to the joist material 6.

尚このとき、根太材６上に接地する固定具４の脚部４４の下端（弾性脚部５６ａ〜５６ｄ、図５参照）が二股になっていること、及び、固定具４の頭部４３の上面がデッキ材２Ａの突状部２７に当接していることから、ビス７の締め付けを行う際に、ビス７及び固定具４において「ぶれ」が生じることを回避でき、適正な方向にビス７を打ち込むことができる。 At this time, the lower end (elastic leg portions 56a to 56d, see FIG. 5) of the leg portion 44 of the fixture 4 that contacts the joist member 6 is bifurcated, and the head 43 of the fixture 4 Since the upper surface is in contact with the projecting portion 27 of the deck material 2A, when the screw 7 is tightened, it is possible to avoid the occurrence of “blurring” in the screw 7 and the fixture 4, and the screw 7 in an appropriate direction. Can be typed.

そして、隣接するデッキ材２Ｂを、デッキ材２Ａとは反対に、第一デッキ面２１ａが上方となる向きで根太材６上に配置し、図１０（１）に示す位置から、固定具４の方向へスライドさせる。 And the adjacent deck material 2B is arrange | positioned on the joist material 6 in the direction from which the 1st deck surface 21a becomes upper direction opposite to deck material 2A, From the position shown in FIG. Slide in the direction.

そうすると、図１０（２）に示すように、デッキ材２Ａの側部に取り付けられた固定具４の反対側の部分に対し、デッキ材２Ｂの側部が接合した状態となる。具体的には、デッキ材２Ｂの第二顎部２４ｂの側面２９ｂがビス７に当接し、垂直フラップ４５ｂの下端がデッキ材２Ｂの小溝２８内に係合し、側方フラップ４２ｂがデッキ材２Ｂの大溝２３内に進入する。尚このとき、側方フラップ４２ｂの主フラップ５１の下面は、大溝２３の下側の面に当接し、弾性フラップ５２は、僅かに下方へ変形した状態で、係止部５３が大溝２３の上側の面に当接する。その結果、デッキ材２Ｂも、デッキ材２Ａと同様に、固定具４によって根太材６上に固定されることになり、この場合も目地幅は３ｍｍとなる。 Then, as shown in FIG. 10 (2), the side portion of the deck material 2B is joined to the opposite side portion of the fixture 4 attached to the side portion of the deck material 2A. Specifically, the side surface 29b of the second jaw portion 24b of the deck material 2B is in contact with the screw 7, the lower end of the vertical flap 45b is engaged in the small groove 28 of the deck material 2B, and the side flap 42b is the deck material 2B. It enters into the large groove 23. At this time, the lower surface of the main flap 51 of the side flap 42b is in contact with the lower surface of the large groove 23, and the elastic flap 52 is slightly deformed downward. It abuts on the surface. As a result, similarly to the deck material 2A, the deck material 2B is also fixed on the joist material 6 by the fixing tool 4, and in this case, the joint width is 3 mm.

３．目地幅１ｍｍのデッキの施工方法
小間隔のデッキを施工する場合には、すべてのデッキ材２を、第二デッキ面２１ｂが上方となる向きで根太材６上に配置する。具体的には、図１１（１）に示すように、第二デッキ面２１ｂが上方となる向きでデッキ材２Ａを配置し、固定具４を、脚部４４の側面がデッキ材２Ａの第一顎部２４ａの側面２９ａから僅かな間隔を置いた位置において脚部４４の下端が根太材６上に接触し、側方フラップ４２ａがデッキ材２Ａの大溝２３内に進入し、かつ、反対側の側方フラップ４２ｂが下がる方向へ僅かに（約３°）傾けた状態とし、この状態でビス穴５４内にビス７を差し込み、締め付けを行って、デッキ材２Ａ及び固定具４を根太材６に対して固定する。 3. Method for constructing deck with joint width of 1 mm When constructing decks with small intervals, all deck members 2 are arranged on joist member 6 with the second deck surface 21b facing upward. Specifically, as shown in FIG. 11 (1), the deck material 2A is arranged with the second deck surface 21b facing upward, the fixture 4, and the side surface of the leg portion 44 is the first of the deck material 2A. At a position slightly spaced from the side surface 29a of the jaw portion 24a, the lower end of the leg portion 44 contacts the joist member 6, the side flap 42a enters the large groove 23 of the deck member 2A, and the opposite side The side flap 42b is tilted slightly (about 3 °) in the downward direction, and in this state, the screw 7 is inserted into the screw hole 54 and tightened so that the deck material 2A and the fixture 4 are attached to the joist 6 Fix against.

そして、隣接するデッキ材２Ｂを、デッキ材２Ａと同様に、第二デッキ面２１ｂが上方となる向きで根太材６上に配置し、図１１（１）に示す位置から、固定具４の方向へスライドさせる。 And the adjacent deck material 2B is arrange | positioned on the joist material 6 with the 2nd deck surface 21b facing upward like the deck material 2A, and the direction of the fixing tool 4 from the position shown in FIG. 11 (1). Slide to.

そうすると、図１１（２）に示すように、デッキ材２Ａの側部に取り付けられた固定具４の反対側の部分に対し、デッキ材２Ｂの側部が接合した状態となる。具体的には、デッキ材２Ｂの第一顎部２４ａの側面２９ａがビス７に当接し、垂直フラップ４５ｂがデッキ材２Ｂの段部２６ａの奥側に当接し、側方フラップ４２ｂがデッキ材２Ｂの大溝２３内に進入する。尚このとき、側方フラップ４２ｂの主フラップ５１の下面は、大溝２３の下側の面に当接し、弾性フラップ５２は、僅かに下方へ変形した状態で、係止部５３が大溝２３の上側の面に当接する。その結果、デッキ材２Ｂも、デッキ材２Ａと同様に、固定具４によって根太材６上に固定されることになり、この場合の目地幅は１ｍｍとなる。 Then, as shown in FIG. 11 (2), the side portion of the deck material 2B is joined to the opposite side portion of the fixture 4 attached to the side portion of the deck material 2A. Specifically, the side surface 29a of the first jaw portion 24a of the deck material 2B is in contact with the screw 7, the vertical flap 45b is in contact with the back side of the step portion 26a of the deck material 2B, and the side flap 42b is in the deck material 2B. It enters into the large groove 23. At this time, the lower surface of the main flap 51 of the side flap 42b is in contact with the lower surface of the large groove 23, and the elastic flap 52 is slightly deformed downward. It abuts on the surface. As a result, similarly to the deck material 2A, the deck material 2B is also fixed on the joist material 6 by the fixture 4, and the joint width in this case is 1 mm.

２，２Ａ，２Ｂ：デッキ材、
４：固定具、
６：根太材、
７：ビス、
２１ａ：第一デッキ面、
２１ｂ：第二デッキ面、
２２ａ，２２ｂ：側縁部、
２３：大溝、
２４ａ：第一顎部、
２４ｂ：第二顎部、
２５ａ，２５ｂ：面取り、
２６ａ，２６ｂ：段部、
２７：突状部、
２８：小溝、
２９ａ，２９ｂ：側面、
４１：本体基部、
４２ａ，４２ｂ：側方フラップ、
４３：頭部、
４４：脚部、
４５ａ，４５ｂ：垂直フラップ、
５１，５１ａ〜５１ｃ：主フラップ、
５２，５２ａ，５２ｂ：弾性フラップ、
５３：係止部、
５４：ビス穴、
５５ａ，５５ｂ：主脚部、
５６ａ〜５６ｄ：弾性脚部、
７１：ビス頭、
７２：キリ込み部 2, 2A, 2B: deck material,
4: Fixing tool,
6: joist,
7: Screw,
21a: first deck surface,
21b: second deck surface,
22a, 22b: side edges,
23: Omizo,
24a: first jaw,
24b: second jaw,
25a, 25b: chamfering,
26a, 26b: stepped part,
27: Projection
28: Small groove,
29a, 29b: sides,
41: Main body base,
42a, 42b: side flaps,
43: head,
44: Leg,
45a, 45b: vertical flaps,
51, 51a to 51c: main flaps,
52, 52a, 52b: elastic flaps,
53: Locking part,
54: Screw hole,
55a, 55b: main legs,
56a to 56d: elastic legs,
71: Screw head,
72: Drilling part

Claims

A deck material unit comprising a deck material and a fixture,
The deck material has a first deck surface, a second deck surface on the opposite side having a larger width than the first deck surface, and left and right side edges, and a cross-sectional shape perpendicular to the longitudinal direction is long. The direction is constant, the left and right side edges are mirror-symmetrical,
Each side edge of the deck material is formed with a large groove that is rolled at a predetermined depth from the outside side to the inside of the deck material at an intermediate position in the thickness direction of the deck material,
At each side edge of the deck material, the second jaw portion on the second deck surface side of the large groove protrudes outward from the first jaw portion on the first deck surface side of the large groove, and the first deck surface side Steps are formed at the corners on the large groove side of the one jaw part and the corners on the large groove side of the second jaw part on the second deck surface side, respectively, and the step part of the second jaw part on the second deck surface side is formed. A protrusion protruding toward the first jaw is formed at a position between the protrusion and the large groove, and toward the second deck surface at a position between the protrusion and the large groove. Drowned small grooves are formed,
The fixing device has a main body base with screw holes penetrating vertically, side flaps projecting from the main body base to the left and right sides, leg portions projecting downward with a predetermined width from the bottom surface of the main body base, and the main body base Each of which is constituted by a vertical flap projecting downward at a position at a predetermined interval to the left and right sides of the lower half,
Two deck materials are arranged adjacent to each other with the first deck surface having a smaller width than the second deck surface facing upward, and the second jaws projecting outward from the first jaw part are opposed to each other, and the fixture The left and right side flaps of the fixture enter the large grooves of the two deck materials, respectively, and the left and right vertical flaps enter the small grooves of the two deck materials. A deck material unit configured to engage.

The side flaps that protrude from the base of the fixture to the left and right sides are each composed of a main flap and an elastic flap that is thinner and more flexible than the main flap.
A locking portion that protrudes upward is formed at the tip of each elastic flap,
Two deck materials are arranged adjacent to each other with the first deck surface having a smaller width than the second deck surface facing upward, and the second jaws projecting outward from the first jaw part are opposed to each other, and the fixture Of the side flaps so that the lower surface of the main flap contacts the lower surface of the large groove, and the elastic flaps of the side flaps slightly downward. The deck material according to claim 1, wherein the shape and size of the fixing device and the large groove of the deck material are set so that the locking portion abuts on the upper surface of the large groove in a deformed state. unit.

The side surface of the first jaw portion of the deck material is inclined so that the first deck surface side protrudes outward rather than the step side of the first jaw portion, and the side surface of the second jaw portion is also the second side. The deck material unit according to claim 1, wherein the deck material unit is inclined so that the second deck surface side protrudes outward than the stepped side of the jaw.