JP7219176B2 - Structure of the threaded portion of the screw - Google Patents

Structure of the threaded portion of the screw Download PDF

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JP7219176B2
JP7219176B2 JP2019117031A JP2019117031A JP7219176B2 JP 7219176 B2 JP7219176 B2 JP 7219176B2 JP 2019117031 A JP2019117031 A JP 2019117031A JP 2019117031 A JP2019117031 A JP 2019117031A JP 7219176 B2 JP7219176 B2 JP 7219176B2
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screw
threaded portion
waterproof sheet
rubber sheet
sheet
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JP2021004448A (en
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雄也 大山
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YKK AP Inc
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Description

本発明は、防水シートで覆われた木質部に螺合されているねじの螺合部構造に関する。 TECHNICAL FIELD The present invention relates to a threaded portion structure of a screw that is screwed into a wooden portion covered with a waterproof sheet.

防水シートで覆われた木質部に螺合されているねじの螺合部構造としては、例えば、ルーフバルコニーの基礎部分を形成し防水シートにより覆われたパネルの上端面に、笠木受金物及び笠木を上方からビス止めしているルーフバルコニーの手摺り取り付け構造が知られている（たとえば、特許文献１参照）。笠木には、長さ方向に沿って溝が成形されており、溝の底面には、複数のビス穴が設けられている。そして、ビス穴に挿通されたビスにより笠木が固定された後に、溝はシール材が嵌め込まれて塞がれている。 As for the structure of the threaded part of the screw that is screwed into the wooden part covered with the waterproof sheet, for example, a top rail bracket and a top rail are attached to the upper end surface of the panel that forms the base of the roof balcony and is covered with the waterproof sheet. A handrail attachment structure for a roof balcony that is screwed from above is known (see, for example, Patent Document 1). A groove is formed in the coping along the length direction, and a plurality of screw holes are provided in the bottom surface of the groove. After the coping is fixed by screws inserted through the screw holes, the grooves are closed by fitting sealing materials.

特開平１１－３５０５８４号公報JP-A-11-350584

上記のように固定された笠木は、笠木の上部がシール材により塞がれているが、ビスにより防水シートに穴が空いているため、いずれかから雨水等が防水シート上に浸入してしまうと、防水シートの穴からパネル側に浸入する虞があり、止水性が低いという課題がある。
本発明は、かかる課題に鑑みてなされたものであり、その目的とするところは、より止水性に優れたねじの螺合部構造を提供することにある。 The upper part of the coping fixed as described above is covered with a sealing material, but since there are holes in the waterproof sheet with screws, rainwater and the like can enter the waterproof sheet from either side. If this happens, there is a risk of intrusion into the panel side through the holes in the waterproof sheet, resulting in a problem of low water stopping performance.
SUMMARY OF THE INVENTION The present invention has been made in view of such problems, and an object of the present invention is to provide a threaded portion structure of a screw that is more excellent in water-tightness.

かかる目的を達成するための主たる発明は、防水シートで覆われた木質部に螺合されているねじの螺合部構造であって、前記防水シートと前記ねじの頭部との間に介装されて前記防水シートに当接される介装部材を有し、前記ねじは、前記介装部材と前記防水シートとを貫通し、前記介装部材は、貫通している前記ねじを外周側から押圧していることを特徴とするねじの螺合部構造である。
本発明の他の特徴については、本明細書及び添付図面の記載により明らかにする。 The main invention for achieving this object is a threaded portion structure of a screw that is screwed into a wooden portion covered with a waterproof sheet, and is interposed between the waterproof sheet and the head of the screw. an interposed member that abuts against the waterproof sheet, the screw penetrates the interposed member and the waterproof sheet, and the interposed member presses the penetrating screw from the outer peripheral side. It is a threaded portion structure of a screw characterized by that.
Other features of the present invention will become apparent from the description of the specification and accompanying drawings.

本発明によれば、より止水性に優れたねじの螺合部構造を提供することが可能である。 ADVANTAGE OF THE INVENTION According to this invention, it is possible to provide the threaded part structure of a screw excellent in water cutoff.

本発明のねじの螺合部構造の一例である笠木の取り付け構造を示す斜視図である。1 is a perspective view showing a coping mounting structure, which is an example of a threaded portion structure of a screw according to the present invention; FIG. 笠木が取り付けられている手摺り壁の構成を示す縦断面図である。It is a longitudinal cross-sectional view which shows the structure of the handrail wall to which the coping is attached. 図２におけるＡ部の拡大図である。FIG. 3 is an enlarged view of part A in FIG. 2 ;

以下、本発明の一実施形態に係るねじの螺合部構造について図面を参照して説明する。
本実施形態のねじの螺合部構造を、図１に示すように、笠木１を保持するホルダー２の手摺り壁３への取り付けに適用する例にて説明する。
図１に示すように、笠木１は、手摺り壁３の木質部３ａにねじ４により固定されているホルダー２に嵌合されて取り付けられている。 Hereinafter, a threaded portion structure of a screw according to an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the threaded portion structure of the screw of this embodiment will be described by taking an example of applying it to the attachment of the holder 2 holding the top rail 1 to the handrail wall 3. As shown in FIG.
As shown in FIG. 1, the top rail 1 is fitted and attached to a holder 2 fixed to a wooden portion 3a of a handrail wall 3 with screws 4. As shown in FIG.

木質部３ａは、バルコニーの内外を仕切る手摺り壁３を形成し、外周面が防水シート３ｂにより覆われ、バルコニーの内面側と外面側とに表面材３ｃが設けられている。
以下の説明においては、手摺り壁３の壁面に沿う方向を面内方向、壁面と直交する方向を面外方向として説明する。 The wooden part 3a forms a handrail wall 3 that partitions the inside and outside of the balcony, the outer peripheral surface of which is covered with a waterproof sheet 3b, and surface materials 3c are provided on the inner and outer surfaces of the balcony.
In the following description, the direction along the wall surface of the handrail wall 3 is defined as the in-plane direction, and the direction perpendicular to the wall surface is defined as the out-of-plane direction.

笠木１は、図２に示すように、手摺り壁３の長手方向に沿って手摺り壁３の全長にわたって設けられており、手摺り壁３の上方を覆う天面部１ａと、天面部１ａにおける面外方向における端部からほほ鉛直に繋がって手摺り壁３の上部における側面と対向する側面部１ｂと、を有している。笠木１の側面部１ｂの内面には、内側に向かって突出しホルダー２に係止される係止部１ｃが設けられている。 As shown in FIG. 2, the top rail 1 is provided over the entire length of the handrail wall 3 along the longitudinal direction of the handrail wall 3. It has a side surface portion 1b that is connected almost vertically from the end portion in the out-of-plane direction and faces the side surface of the upper portion of the handrail wall 3. As shown in FIG. On the inner surface of the side portion 1b of the coping 1, a locking portion 1c that protrudes inward and is locked to the holder 2 is provided.

ホルダー２は、手摺り壁３の面内方向に互いに適宜間隔を空けて複数設けられている。すなわち、ホルダー２は、手摺り壁３の長手方向における幅が手摺り壁３より十分に小さな部材である。 A plurality of holders 2 are provided at appropriate intervals in the in-plane direction of the handrail wall 3 . That is, the holder 2 is a member whose width in the longitudinal direction of the handrail wall 3 is sufficiently smaller than that of the handrail wall 3 .

ホルダー２は、木質部３ａにねじ止めされる矩形状の天端固定部２ａと、天端固定部２ａの面外方向における両端部から上方に延出された２つの上方延出部２ｂと、２つの上方延出部２ｂの上端部から各々、面外方向においてバルコニーの内外方向に各々延出されて略水平な面を形成する水平面部２ｃと、水平面部２ｃから各々延出され先方側が低くなるように湾曲する延出腕部２ｄと、を有している。延出腕部２ｄは、先端が手摺り壁３の上方よりも外側に位置するように延出されており、その先端に笠木１の係止部１ｃが係止される。 The holder 2 includes a rectangular top end fixing portion 2a screwed to the wooden portion 3a, two upwardly extending portions 2b extending upward from both ends of the top end fixing portion 2a in the out-of-plane direction. From the upper ends of the two upwardly extending portions 2b, the horizontal surface portion 2c extends in the inward and outward directions of the balcony in the out-of-plane direction to form a substantially horizontal surface, and the horizontal surface portion 2c extends from the horizontal surface portion 2c so that the front side is lower. and an extending arm portion 2d that is curved in such a manner. The extending arm portion 2d extends so that the tip thereof is positioned outside the upper portion of the handrail wall 3, and the engaging portion 1c of the top rail 1 is engaged with the tip thereof.

ホルダー２は、木質部３ａの天端を覆う防水シート３ｂ上に、貫通したねじ４の周面に対する押圧力が防水シート３ｂより高い介装部材としてのゴムシート５を介してねじ４により固定されている。ここで防水シート３ｂは、薄いシート状をなす、例えばイー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー製ＴＹＶＥＫ＼タイベック(登録商標)であり、ゴムシート５は、当該防水シート３ｂよりも厚く、締め込まれたねじ４のねじ部４ｄの周面をねじ部４ｄの軸側に押圧している。また、ゴムシート５と防水シート３ｂとの間には、粘着剤６が設けられている。 The holder 2 is fixed on the waterproof sheet 3b covering the top of the wooden part 3a by the screw 4 via the rubber sheet 5 as an interposed member having a higher pressing force against the peripheral surface of the penetrating screw 4 than the waterproof sheet 3b. there is Here, the waterproof sheet 3b has a thin sheet shape, for example, TYVEK/Tyvek (registered trademark) manufactured by E.I. , presses the peripheral surface of the threaded portion 4d of the tightened screw 4 toward the shaft side of the threaded portion 4d. An adhesive 6 is provided between the rubber sheet 5 and the waterproof sheet 3b.

ホルダー２の天端固定部２ａには、ねじ４を挿通可能な４つの長穴２ｅが設けられており、本実施形態では、４つの長穴２ｅのうちの２つの長穴２ｅにねじ４を挿通して固定している。長穴２ｅは、天端固定部２ａの四方に面外方向に沿って設けられており、対角に位置する２つの長穴２ｅにねじ４が挿通される。ここで、ねじ４が挿通される穴は、長穴に限るものではない。 The top end fixing portion 2a of the holder 2 is provided with four elongated holes 2e through which the screws 4 can be inserted. It is inserted and fixed. The long holes 2e are provided along the out-of-plane direction on the four sides of the top end fixing portion 2a, and the screws 4 are inserted through the two diagonally positioned long holes 2e. Here, the hole through which the screw 4 is inserted is not limited to the elongated hole.

図３に示すように、天端固定部２ａと防水シート３ｂとの間には、長穴２ｅよりも十分大きなサイズのゴムシート５が介装されている。ゴムシート５は、２枚のゴム製のシート部材間に不織布、布、網などのシート状の芯材５ａが介在されて一体に形成されている。２枚のシート部材は、厚み、弾性、素材等が同一の部材であっても互いに異なる部材であっても構わない。また、本実施形態では、ゴムシート５が個々の長穴２ｅに対応してそれぞれ設けられているが、４つの長穴２ｅが納まるサイズの１枚のゴムシート５であっても構わない。 As shown in FIG. 3, a rubber sheet 5 having a size sufficiently larger than the long hole 2e is interposed between the top fixing portion 2a and the waterproof sheet 3b. The rubber sheet 5 is integrally formed by interposing a sheet-like core material 5a such as non-woven fabric, cloth, or net between two rubber sheet members. The two sheet members may be members having the same thickness, elasticity, material, etc., or may be members different from each other. Further, in the present embodiment, the rubber sheets 5 are provided corresponding to the respective elongated holes 2e, but one rubber sheet 5 having a size that accommodates the four elongated holes 2e may be used.

ねじ４は、頭部４ａ側にねじ山４ｂが設けられていない円柱部４ｃを有する、所謂半ねじである。円柱部４ｃの直径Ｄは、ねじ部４ｄにおける谷径にねじ山の高さを加えた幅Ｗよりも僅かに大きく形成されている。また、円柱部４ｃの長さＬ１は、天端固定部２ａの厚みｔ１よりも長く、天端固定部２ａの厚みｔ１とゴムシート５の厚みｔ２とを合わせた厚みｔ１＋ｔ２よりも短く形成されている。このため、ねじ４が、天端固定部２ａの長穴２ｅ、ゴムシート５、防水シート３ｂを挿通し、木質部３ａに螺合されて締め込まれた状態で、ねじ４の円柱部４ｃの下端部側の部位が、螺合されたねじ４によりゴムシート５形成されたねじ穴に進入している。このため、円柱部４ｃの下端部側の部位は、周面がゴムシート５によりねじ部４ｄの軸側に押圧されている。 The screw 4 is a so-called half screw that has a cylindrical portion 4c without a thread 4b on the side of the head 4a. The diameter D of the cylindrical portion 4c is formed slightly larger than the width W obtained by adding the height of the screw thread to the root diameter of the threaded portion 4d. In addition, the length L1 of the cylindrical portion 4c is longer than the thickness t1 of the top end fixing portion 2a and shorter than the total thickness t1+t2 of the thickness t1 of the top end fixing portion 2a and the thickness t2 of the rubber sheet 5. there is For this reason, the screw 4 is inserted through the elongated hole 2e of the top fixing portion 2a, the rubber sheet 5, and the waterproof sheet 3b, and in a state where it is screwed into the wooden portion 3a and tightened, the lower end of the columnar portion 4c of the screw 4 is inserted. The part on the side is inserted into a threaded hole formed in a rubber sheet 5 by a screw 4 that is screwed thereon. For this reason, the rubber sheet 5 presses the peripheral surface of the portion on the lower end side of the columnar portion 4c toward the shaft side of the threaded portion 4d.

本実施形態のねじ４の螺合部構造を適用した笠木１の取り付け方法は、まず、防水シート３ｂに覆われた木質部３ａに、ねじ外径に対応する下穴(不図示)を形成し、ゴムシート５に下穴よりも小さな内径の貫通孔(不図示)を形成しておく。
次に、ゴムシート５の貫通孔を、防水シート３ｂ及び木質部３ａの下穴と位置を合わせて、防水シート３ｂ上に配置する。 The method of attaching the coping 1 to which the threaded portion structure of the screw 4 of the present embodiment is applied is as follows. A through hole (not shown) having an inner diameter smaller than that of the prepared hole is formed in the rubber sheet 5 in advance.
Next, the through-holes of the rubber sheet 5 are aligned with the prepared holes of the waterproof sheet 3b and the wooden portion 3a and placed on the waterproof sheet 3b.

次に、下穴、貫通孔と、長穴２ｅの位置を合わせてホルダー２を配置し、長穴２ｅ、貫通孔、下穴に上方からねじ４を挿入して木質部３ａに螺合し、ホルダー２を手摺り壁３に固定する。このときゴムシート５と防水シート３ｂとの間が粘着剤６により水密になる。
次に、手摺り壁３及びホルダー２の上方から笠木１を被せ、笠木１をホルダー２に係止して、笠木１を手摺り壁３に取り付ける。 Next, the holder 2 is placed by aligning the pilot hole, the through hole, and the slot 2e, and the screw 4 is inserted from above into the slot 2e, the through hole, and the pilot hole and screwed to the wood portion 3a, and the holder is mounted. 2 is fixed to the handrail wall 3. At this time, the adhesive 6 makes the gap between the rubber sheet 5 and the waterproof sheet 3b watertight.
Next, the top rail 1 is put on the handrail wall 3 and the holder 2 from above, the top rail 1 is locked to the holder 2, and the top rail 1 is attached to the handrail wall 3. - 特許庁

本実施形態のねじ４の螺合部構造によれば、木質部３ａを覆う防水シート３ｂとねじ４の頭部４ａとの間にて、防水シート３ｂに当接されて介装されているゴムシート５が、貫通しているねじ４の周面をねじ部４ｄの軸側に押圧しているので、ねじ４が防水シート３ｂとともにゴムシート５を貫通したとしてもゴムシート５により止水することが可能である。このため、ねじ４の螺合部から木質部３ａ側に雨水等が浸入することを防止することが可能である。このため、より止水性に優れたねじ４の螺合部構造を提供することが可能である。 According to the threaded portion structure of the screw 4 of this embodiment, the rubber sheet is interposed between the waterproof sheet 3b covering the wooden portion 3a and the head 4a of the screw 4 so as to be in contact with the waterproof sheet 3b. 5 presses the peripheral surface of the penetrating screw 4 toward the shaft side of the threaded portion 4d. Therefore, even if the screw 4 penetrates the rubber sheet 5 together with the waterproof sheet 3b, the rubber sheet 5 can stop water. It is possible. Therefore, it is possible to prevent rainwater or the like from entering the wooden portion 3a through the threaded portion of the screw 4. As shown in FIG. For this reason, it is possible to provide a threaded portion structure for the screw 4 that is more excellent in waterproofing.

また、木質部３ａ側に浸入する雨水等をホルダー２とねじ４の頭部４ａとの間ではなく、ねじ４の周面をゴムシート５により押圧して止水するので、より確実に木質部３ａ側に雨水等が浸入することを防止することが可能である。 In addition, since the rubber sheet 5 presses the peripheral surface of the screw 4 rather than between the holder 2 and the head portion 4a of the screw 4 to stop rainwater or the like entering the wooden portion 3a side, the wooden portion 3a side is more reliably prevented. It is possible to prevent rainwater and the like from entering the

また、螺合されたねじ４は、ねじ４における谷径にねじ山の高さを加えた幅Ｗよりも僅かに大きな直径Ｄをなしてねじ山４ｂが設けられていない円柱部４ｃがゴムシート５に進入しているので、ゴムシート５に螺合されたねじ４により形成されたねじ穴を押し広げるように円柱部４ｃの下端側の部位がゴムシート５に進入している。このため、円柱部４ｃはゴムシート５により、外周側からより強く押圧されるため隙間が生じ難い。このため、ねじ４の螺合部から木質部３ａ側に雨水等が浸入することをより確実に防止することが可能である。 The threaded screw 4 has a diameter D which is slightly larger than the width W obtained by adding the thread height to the root diameter of the screw 4, and the cylindrical portion 4c without the thread 4b is a rubber sheet. 5, the lower end portion of the cylindrical portion 4c enters the rubber sheet 5 so as to widen the threaded hole formed by the screw 4 screwed into the rubber sheet 5. As shown in FIG. Therefore, since the cylindrical portion 4c is pressed more strongly from the outer peripheral side by the rubber sheet 5, a gap is less likely to occur. Therefore, it is possible to more reliably prevent rainwater or the like from entering the wooden portion 3a through the threaded portion of the screw 4. As shown in FIG.

また、ゴムシート５と防水シート３ｂとの間に粘着剤６が設けられているので、ゴムシート５と防水シート３ｂとの間が水密になる。このため、ゴムシート５と防水シート３ｂとの間から雨水等が浸入することを防止して、より高い止水性を備えることが可能である。 Moreover, since the adhesive 6 is provided between the rubber sheet 5 and the waterproof sheet 3b, the gap between the rubber sheet 5 and the waterproof sheet 3b is watertight. Therefore, it is possible to prevent rainwater and the like from entering from between the rubber sheet 5 and the waterproof sheet 3b, thereby providing a higher waterproof performance.

また、ホルダー２と防水シート３ｂとの間に介在されているのが、防水シート３ｂよりも高い弾性を備えるゴムシート５なので、螺合されたねじ４をより強く押圧し、ゴムシート５のねじ穴からの雨水等の浸入をより確実に防止することが可能である。 Further, since the rubber sheet 5 having elasticity higher than that of the waterproof sheet 3b is interposed between the holder 2 and the waterproof sheet 3b, the screws 4 that are screwed together are pressed more strongly, and the screws of the rubber sheet 5 are tightened. It is possible to more reliably prevent rainwater and the like from entering through the holes.

また、ゴムシート５の内部に芯材５ａを有しているので、ねじ４が螺合されてゴムシート５にねじ穴が形成される際に、ゴムシート５が裂けて伝播していくことを防止することが可能である。このため、ねじ穴からの雨水等の浸入をより確実に防止することが可能である。 Further, since the rubber sheet 5 has the core material 5a inside, when the screw 4 is screwed to form the screw hole in the rubber sheet 5, the rubber sheet 5 is not torn and propagated. It is possible to prevent Therefore, it is possible to more reliably prevent rainwater or the like from entering through the screw hole.

上記実施形態においては、介装部材をゴムシート５としたが、これに限らず、例えば、剛性樹脂のシート材など、貫通したねじに対する押圧力が防水シートより高い、すなわち、締め込まれたねじのねじ部の周面をねじ部の軸側に押圧して、貫通しているねじの周面に隙間が、防水シートよりも生じ難い部材であれば構わない。このとき、押圧力は、弾性によるもののほか、防水シートよりも厚みを備えていることにより進入していくねじの周面に押圧力が作用する形態であってもよく、ねじの周面に隙間が生じ難い部材であればゴムシートでなくとも構わない。 In the above embodiment, the rubber sheet 5 is used as the interposed member, but this is not the only option. Any member may be used as long as it presses the peripheral surface of the threaded portion toward the shaft side of the threaded portion so that gaps are less likely to occur in the peripheral surface of the penetrating thread than in the case of the waterproof sheet. At this time, the pressing force may be elastic, or may be thicker than the waterproof sheet so that the pressing force acts on the peripheral surface of the screw that is entering the gap. Any member other than a rubber sheet may be used as long as it is a member in which it is difficult for the crack to occur.

上記実施形態においては、手摺り壁３が有する木質部３ａへのホルダー３の固定に本発明のねじの螺合部構造を適用する例について説明したが、これに限るものではない。すなわち、ねじが螺合される木質部は、手摺り壁に限らず、また、ねじにより固定される部材はホルダーに限るものではなく、ねじが螺合される部材側への水の浸入を防ぎつつねじを螺合する部位であれば、いずれの部位であっても適用可能である。このため、何らかの部材を固定する場合ばかりでなく、ばねやワイヤーなどの部材を引っ掛けるためなど、ねじ頭部の座面が、防水シートと間隔を空けた状態でねじが設けられる場合にも適用可能である。 In the above embodiment, an example in which the threaded portion structure of the screw of the present invention is applied to fix the holder 3 to the wooden portion 3a of the handrail wall 3 has been described, but the present invention is not limited to this. That is, the wooden part to which the screw is screwed is not limited to the handrail wall, and the member fixed by the screw is not limited to the holder. Any part can be applied as long as it is a part to which a screw is screwed. For this reason, it can be applied not only when fixing some kind of member, but also when a screw is provided with a gap between the bearing surface of the screw head and the waterproof sheet, such as for hooking a member such as a spring or wire. is.

上記実施形態においては、ねじ４の螺合部構造を適用した笠木１の取り付け方法として、防水シート３ｂに覆われた木質部３ａに下穴を形成し、ゴムシート５に下穴よりも小さな内径の貫通孔を形成する例について説明したが、これに限らず、防水シートに覆われた木質部上にゴムシートを載置して、防水シート、木質部、及び、ゴムシートに同一径の下穴を形成しても構わない。 In the above embodiment, as a method of attaching the coping 1 to which the threaded portion structure of the screw 4 is applied, a pilot hole is formed in the wooden portion 3a covered with the waterproof sheet 3b, and the rubber sheet 5 has an inner diameter smaller than that of the pilot hole. Although an example of forming a through-hole has been described, the present invention is not limited to this. A rubber sheet is placed on a wooden part covered with a waterproof sheet, and pilot holes having the same diameter are formed in the waterproof sheet, the wooden part, and the rubber sheet. I don't mind.

上記実施形態は、本発明の理解を容易にするためのものであり、本発明を限定して解釈するためのものではない。本発明は、その趣旨を逸脱することなく、変更、改良され得ると共に、本発明にはその等価物が含まれることはいうまでもない。 The above-described embodiments are intended to facilitate understanding of the present invention, and are not intended to limit and interpret the present invention. The present invention can be modified and improved without departing from its spirit, and it goes without saying that the present invention includes equivalents thereof.

本実施形態には、少なくとも以下の発明が含まれる。
防水シートで覆われた木質部に螺合されているねじの螺合部構造であって、前記防水シートと前記ねじの頭部との間に介装されて前記防水シートに当接される介装部材を有し、前記ねじは、前記介装部材と前記防水シートとを貫通し、前記介装部材は、貫通している前記ねじを外周側から押圧していることを特徴とするねじの螺合部構造である。 This embodiment includes at least the following inventions.
A threaded portion structure of a screw that is screwed into a wooden portion covered with a waterproof sheet, the insert being interposed between the waterproof sheet and the head of the screw and brought into contact with the waterproof sheet. a member, wherein the screw penetrates the interposed member and the waterproof sheet, and the interposed member presses the penetrating screw from the outer peripheral side. It is a joint structure.

このようなねじの螺合部構造によれば、木質部を覆う防水シートとねじの頭部との間にて、防水シートに当接されて介装されている介装部材が、貫通しているねじを外周側から押圧しているので、介装部材と防水シートとをねじが貫通したとしても介装部材により止水することが可能である。このため、ねじの螺合部から木質部側に雨水等が浸入することを防止することが可能である。このため、より止水性に優れたねじの螺合部構造を提供することが可能である。 According to this threaded portion structure of the screw, the interposition member interposed in contact with the waterproof sheet penetrates between the waterproof sheet covering the wooden portion and the head of the screw. Since the screw is pressed from the outer peripheral side, even if the screw penetrates the interposed member and the waterproof sheet, the interposed member can stop water. Therefore, it is possible to prevent rainwater or the like from entering the wooden portion through the threaded portion of the screw. For this reason, it is possible to provide a threaded portion structure of a screw that is more excellent in waterproofing.

かかるねじの螺合部構造であって、前記ねじは、前記頭部側に、前記ねじにおける谷径にねじ山の高さを加えた幅よりも大きな直径をなしてねじ山が設けられていない円柱部を有し、螺合された状態で前記円柱部が前記介装部材に進入していることを特徴とする。 In such a threaded portion structure of a screw, the screw does not have a thread on the head side with a diameter larger than the width obtained by adding the root diameter of the screw to the height of the screw thread. It has a columnar portion, and the columnar portion enters the interposition member in a screwed state.

このようなねじの螺合部構造によれば、螺合されたねじは、ねじにおける谷径にねじ山の高さを加えた幅よりも大きな直径をなしてねじ山が設けられていない円柱部が介装部材に進入しているので、螺合されたねじにより介装部材に形成されたねじ穴を押し広げるように円柱部が介装部材に進入している。このため、円柱部は介装部材により、外周側からより強く押圧されるため隙間が生じ難い。このため、ねじの螺合部から木質部側に雨水等が浸入することをより確実に防止することが可能である。 According to such a threaded portion structure of a screw, the thread that is screwed has a diameter larger than the width obtained by adding the height of the thread to the root diameter of the thread, and the cylindrical portion is not provided with a thread. has entered the interposed member, the cylindrical portion has entered the interposed member so as to expand the threaded hole formed in the interposed member by the threaded screw. For this reason, the cylindrical portion is pressed more strongly from the outer peripheral side by the interposing member, so that a gap is less likely to occur. Therefore, it is possible to more reliably prevent rainwater or the like from entering the wooden portion through the threaded portion of the screw.

かかるねじの螺合部構造であって、前記介装部材は、前記防水シートとの間に粘着剤が設けられていることを特徴とする。
このようなねじの螺合部構造によれば、介装部材との間に粘着剤が設けられているので、介装部材と防水シートとの間が水密になる。このため、介装部材と防水シートとの間から雨水等が浸入することを防止して、より高い止水性を備えることが可能である。 Such a threaded portion structure of a screw is characterized in that an adhesive is provided between the interposed member and the waterproof sheet.
According to such a threaded portion structure of the screw, since the adhesive is provided between the interposed member and the interposed member, the space between the interposed member and the waterproof sheet becomes watertight. For this reason, it is possible to prevent rainwater and the like from entering between the interposed member and the waterproof sheet, thereby providing a higher waterproof performance.

かかるねじの螺合部構造であって、前記介装部材は、ゴムシートであることを特徴とする。
このようなねじの螺合部構造によれば、介装部材が防水シートよりも高い弾性を備えるゴムシートなので、螺合されたねじをより強く押圧し、ゴムシートのねじ穴からの雨水等の浸入をより確実に防止することが可能である。 The threaded portion structure of the screw is characterized in that the interposition member is a rubber sheet.
According to such a threaded portion structure of the screw, since the interposed member is a rubber sheet having higher elasticity than the waterproof sheet, the threaded screw is pressed more strongly, and rainwater, etc., seeps through the screw hole of the rubber sheet. Intrusion can be prevented more reliably.

かかるねじの螺合部構造であって、前記ゴムシートは、内部に芯材を有していることを特徴とする。
このようなねじの螺合部構造によれば、ゴムシートの内部に芯材を有しているので、ねじが螺合されてゴムシートにねじ穴が形成される際に、ゴムシートが裂けて伝播していくことを防止することが可能である。 In such a screw engagement structure, the rubber sheet has a core inside.
According to this threaded portion structure of the screw, since the rubber sheet has a core material inside, the rubber sheet is torn when the screw is threaded to form a screw hole in the rubber sheet. It is possible to prevent it from propagating.

３ａ 木質部、３ｂ 防水シート、４ ねじ、４ａ 頭部、４ｂ ねじ山、
４ｃ 円柱部、５ ゴムシート、５ａ 芯材、６ 粘着剤、
Ｄ 円柱部の直径、Ｗ ねじにおける谷径にねじ山の高さを加えた幅、 3a wooden part, 3b waterproof sheet, 4 screw, 4a head, 4b thread,
4c cylindrical portion, 5 rubber sheet, 5a core material, 6 adhesive,
D is the diameter of the cylindrical portion, W is the width obtained by adding the height of the screw thread to the root diameter of the screw,

Claims (5)

防水シートで覆われた木質部に螺合されているねじの螺合部構造であって、
前記防水シートと前記ねじの頭部との間に介装されて前記防水シートに当接される介装部材を有し、
前記ねじは、
ねじ部よりも前記頭部側に、前記ねじにおける谷径よりも大きな直径をなし、ねじ山が設けられていない円柱部を有する単一の部材であり、前記介装部材と前記防水シートとを貫通し、螺合された状態で前記円柱部が当該介装部材に進入しており、
前記介装部材は、前記円柱部を外周側から押圧していることを特徴とするねじの螺合部構造。 A threaded portion structure of a screw that is screwed to a wooden portion covered with a waterproof sheet,
an interposition member interposed between the waterproof sheet and the head of the screw and abutted against the waterproof sheet;
The screw is
A single member having a cylindrical portion having a diameter larger than the root diameter of the thread and having no thread on the head side of the threaded portion, and the interposed member and the waterproof sheet are combined. The cylindrical portion enters the interposing member in a threaded state, and
The threaded portion structure of the screw , wherein the interposed member presses the cylindrical portion from the outer peripheral side. 請求項１に記載のねじの螺合部構造であって、
前記円柱部の直径は、前記ねじにおける谷径にねじ山の高さを加えた幅よりも大きいことを特徴とするねじの螺合部構造。 The threaded portion structure of the screw according to claim 1,
The threaded portion structure of a screw, wherein the diameter of the cylindrical portion is larger than the width obtained by adding the height of the screw thread to the root diameter of the screw. 請求項１または請求項２に記載のねじの螺合部構造であって、
前記介装部材は、前記防水シートとの間に粘着剤が設けられていることを特徴とするねじの螺合部構造。 The threaded portion structure of the screw according to claim 1 or claim 2,
The threaded portion structure of the screw, wherein the interposed member has an adhesive provided between it and the waterproof sheet. 請求項１乃至請求項３のいずれかに記載のねじの螺合部構造であって、
前記介装部材は、ゴムシートであることを特徴とするねじの螺合部構造。 The threaded portion structure of a screw according to any one of claims 1 to 3,
The threaded portion structure of the screw, wherein the interposition member is a rubber sheet. 請求項４に記載のねじの螺合部構造であって、
前記ゴムシートは、内部に芯材を有していることを特徴とするねじの螺合部構造。 The threaded portion structure of the screw according to claim 4,
The threaded portion structure of the screw, wherein the rubber sheet has a core material inside.
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JP2001032472A (en) 1999-07-19 2001-02-06 Yamatomi Shoji Kk Waterproofing construction method for coping mounting part
JP2003003619A (en) 2001-06-27 2003-01-08 Takenaka Komuten Co Ltd Fixing structure of waterproof sheet
JP2003003582A (en) 2001-06-26 2003-01-08 Daiwa House Ind Co Ltd Flat water stop material and its installation structure
JP2013256758A (en) 2012-06-11 2013-12-26 Nitto Denko Corp Water proof screw, seal material, structure installation method, and structure installation mechanism
JP2014034825A (en) 2012-08-09 2014-02-24 Tajima Roofing Inc Sheet fixing device and insulation waterproofing method

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Publication number Priority date Publication date Assignee Title
JPH0126821Y2 (en) * 1981-03-12 1989-08-10
JPH0345454Y2 (en) * 1985-02-16 1991-09-26
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Publication number Priority date Publication date Assignee Title
JP2001032472A (en) 1999-07-19 2001-02-06 Yamatomi Shoji Kk Waterproofing construction method for coping mounting part
JP2003003582A (en) 2001-06-26 2003-01-08 Daiwa House Ind Co Ltd Flat water stop material and its installation structure
JP2003003619A (en) 2001-06-27 2003-01-08 Takenaka Komuten Co Ltd Fixing structure of waterproof sheet
JP2013256758A (en) 2012-06-11 2013-12-26 Nitto Denko Corp Water proof screw, seal material, structure installation method, and structure installation mechanism
JP2014034825A (en) 2012-08-09 2014-02-24 Tajima Roofing Inc Sheet fixing device and insulation waterproofing method

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