JP2007016557A - Waterproofing structure and its construction method for rooftop - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a waterproofing structure and its construction method for a rooftop capable of offering a high performance of watertightness and an excellent workability. <P>SOLUTION: This is a rooftop waterproofing structure 1 for securing waterproofness for a lead-in hole 4 formed through a rooftop slab 3 when laying a rope-like member 2 such as a hose, pipe or conductor toward an indoor space. This waterproofing structure comprises a cylindrical body 5 extended vertically, a base portion 7 having a flange 6 extended horizontally outward from a bottom end of the cylindrical body 5 and fixed to the rooftop slab 3, and a top lid 8 covered to the top portion of the cylindrical body 5 which has a box-shaped measure placed its open-side down. The rope-like member 2 is extended upwardly from a bottom end edge of the top lid 8 through a gap between the cylindrical body 5 and the top lid 8. At the top of the cylindrical body 5, the rope-like member is gently bent to a reversed U-shape and inserted to the cylindrical body 5 and then distributed indoors through the lead-in hole 4 made through the rooftop slab 3 located at the bottom of the cylindrical body 5. An edge waterproofing sheet continuously covering the surrounding areas of the top surface and rooftop slab 3 of the flange 6 is then adhered together. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、ホース、パイプ、導線などの紐状部材を屋上から屋内に向けて配設する際に使用し、水密性能に優れるとともに施工性が高い屋上の防水構造及び屋上の防水施工方法に関する。   The present invention relates to a rooftop waterproof structure and a rooftop waterproofing construction method that are used when arranging string-like members such as hoses, pipes, and conductors from the rooftop to the indoors, and have excellent watertightness and high workability.

都市部における建築物は敷地面積に余裕が少ないため、空調機器、給湯機器その他の設備機械を屋上に設置する場合が多い。他方、受信感度が高いため、屋上の設置が好ましい受信アンテナは、高度情報化に伴なって、その種類、数量が増加傾向にある。更に窓を通して充分な採光が困難な都会では、屋上で集めた太陽光を、光ファイバーケーブルにより建物内部に導入する採光装置が設置される場合等もある。   Buildings in urban areas have a small site area, so air conditioning equipment, hot water supply equipment and other equipment are often installed on the rooftop. On the other hand, receiving antennas that are preferably installed on the roof because of their high receiving sensitivity tend to increase in type and quantity as information is advanced. Furthermore, in a city where it is difficult to obtain sufficient light through a window, there may be a case where a daylighting device is installed to introduce sunlight collected on the roof into the building using an optical fiber cable.

この種の屋上に設置される各種の設備、装置から屋内に向けて配設されるパイプ、導線などは、外壁面を貫通して建物内へ引き込むことができる。しかし配設経路が長くなるため効率を低下させ、メンテナンスにおいて、足場が不安定なため作業性が悪いとともに危険を伴い、更に建築物の外観を損ねるという問題がある。   Various types of equipment installed on this type of rooftop, pipes, conductors, and the like arranged indoors from the apparatus can be drawn through the outer wall surface into the building. However, since the arrangement route becomes long, the efficiency is lowered, and in the maintenance, the scaffold is unstable, so that the workability is bad and dangerous, and the appearance of the building is further impaired.

そこで、パイプ、導線などを屋上床を貫通させて直接屋内に引き込む構造が多用されている。しかしながら屋上床は、常に風雨に曝されるとともに強い日射を長時間受ける構成材料が紫外線によって劣化し、更には夜昼の温度差が大きく熱膨張による伸縮のためにクラックなどの欠損を生じやすい環境にある。これに対して水密性能を維持するために各種の工夫がなされるものの、その信頼性には限界があり、特に施工品質にバラツキが生じると、経年劣化によって雨漏りを起こす可能性が考えられる。   In view of this, a structure in which pipes, conductors, and the like are directly drawn indoors through the rooftop floor is often used. However, the rooftop floor is always exposed to wind and rain and the components that are exposed to strong sunlight for a long time are deteriorated by ultraviolet rays, and furthermore, the temperature difference between night and day is large and it is easy to cause cracks and other defects due to expansion and contraction due to thermal expansion. is there. On the other hand, although various devices are made to maintain the watertight performance, the reliability is limited. In particular, when the construction quality varies, there is a possibility that rain leakage may occur due to aged deterioration.

一方、近年シート材料の品質改良、工法の開発などにより屋上床のシート防水工法が普及している。しかしこの種シート防水された屋上床を貫通してパイプ類を引込む場合、全面に敷設されたシートに貫通孔が穿設されるため、この孔部分から漏水の恐れがある。   On the other hand, in recent years, roof sheet waterproofing methods have become widespread due to improvements in sheet material quality and development of construction methods. However, when the pipes are drawn through the rooftop waterproofed with this kind of sheet, since a through hole is formed in the sheet laid on the entire surface, there is a risk of water leakage from this hole portion.

そこでシート防水工法された屋上床における漏水防止のため、図１１に示すように、コンクリートスラブａにスリーブ本体ｂを埋設し、このスリーブ本体ｂに筒状の押さえ部材ｄを螺着した配管用スリーブｅを用いて配管する施工法が提案されている（例えば、特許文献１参照）。前記提案の施工法においては、パッキンｆを介して、スリーブ本体ｂの笠状部ｇと押さえ部材ｄの笠状突起ｈとで、全面防水シートｉの孔縁部全周を挟着し、これにより配管部の防水処理が施されている。   Therefore, in order to prevent water leakage on the roof of the roof, which has been waterproofed, as shown in FIG. 11, a sleeve for piping, in which a sleeve body b is embedded in a concrete slab a, and a cylindrical pressing member d is screwed to the sleeve body b. A construction method for piping using e has been proposed (see, for example, Patent Document 1). In the proposed construction method, the entire circumference of the hole edge portion of the waterproof sheet i is sandwiched between the cap-shaped portion g of the sleeve body b and the cap-shaped projection h of the pressing member d through the packing f. The piping part is waterproofed by the above.

特開平１０−２９２５８１号公報JP-A-10-292581

しかしながら、スリーブ本体ｂの笠状部ｇと押さえ部材ｄの笠状突起ｈとで全面防水シートｉの孔縁部を挟着する力は、押さえ部材ｄをスリーブ本体ｂへ螺着する力により調整される。従って、施工時の締め付け力にバラツキを生じ、或いは施工後の交通振動、繰り返し温度変化を受けると、部分的に防水シートの挟着による保持力が不足して、漏水の可能性が有り、防水処理の信頼性が低いという問題がある。   However, the force for clamping the hole edge of the entire waterproof sheet i by the cap-shaped portion g of the sleeve main body b and the cap-shaped projection h of the pressing member d is adjusted by the force of screwing the pressing member d to the sleeve main body b. Is done. Therefore, if the tightening force varies during construction, or if it undergoes traffic vibration after construction and repeated temperature changes, there is a possibility that water will leak due to insufficient holding power due to the sandwich of the waterproof sheet. There is a problem that processing reliability is low.

更には、前記屋上における厳しい温度環境下、防水シートが繰り返し膨張伸縮すると、金属製のスリーブ部材によって挟着される全面防水シートｉの孔縁部に、裂け目が発生しやすく、防水機能の耐久性にも問題がある。   Furthermore, when the waterproof sheet repeatedly expands and contracts under severe temperature conditions on the roof, tears are likely to occur at the hole edge of the entire waterproof sheet i sandwiched between the metal sleeve members, and the waterproof function is durable. There is also a problem.

本発明は、フランジの上面及び屋上床の周辺領域に、これらを連続的に覆う縁部防水シートが貼着されることを基本とし、水密性能が高いとともに施工性に優れる屋上の防水構造及び屋上の防水施工方法の提供を課題としている。   The present invention is based on the fact that an edge waterproof sheet that continuously covers these is adhered to the upper surface of the flange and the peripheral area of the roof floor, and has a waterproof structure and a rooftop that have high watertightness and excellent workability. The issue is to provide a waterproof construction method.

前記目的を達成するために、請求項１に係る発明は、ホース、パイプ、導線などの紐状部材を屋内に向けて配設する際、屋上床に形成される引込み孔の防水性を確保するための屋上の防水構造であって、縦にのびる筒状体、及びこの筒状体の下端から外に向かい水平にのびるフランジを有して屋上床に固定される基部と、伏せられた枡状をなすとともに筒状部の上部に冠着される上蓋部とを具え、前記紐状部材は、上蓋部の下端縁から筒状体と上蓋部との隙間を上に向けてのびるとともに、筒状体の上部で逆Ｕ字状に緩やかに折れ曲がって筒状体の中に挿通され、かつ筒状体の下端に臨む屋上床に穿設された引込み孔を通って屋内へ配設され、前記フランジの上面及び屋上床の周辺領域に、これらを連続的に覆う縁部防水シートが貼着されることを特徴とする。   In order to achieve the above object, the invention according to claim 1 ensures the waterproofness of the lead-in hole formed in the rooftop floor when the string-like members such as hoses, pipes and conducting wires are arranged indoors. A roof structure for waterproofing, having a vertically extending cylindrical body, a base having a flange extending horizontally outward from the lower end of the cylindrical body, and a base that is fixed to the rooftop floor, And the upper part of the upper part of the tubular part, the string-like member extends from the lower end edge of the upper part of the upper part toward the upper part of the tubular part and the upper part of the upper part, and is tubular. The flange is gently bent in an inverted U shape at the top of the body and inserted into the cylindrical body, and is disposed indoors through a lead-in hole drilled in a rooftop floor facing the lower end of the cylindrical body. An edge waterproof sheet is continuously attached to the upper surface of the roof and the peripheral area of the rooftop floor. And wherein the door.

請求項２に係る発明においては、前記筒状体は、上部において片持ち状に横方向に延設され、かつ底板に通孔を有する張出部が形成され、前記紐状部材は、前記通孔を通って、筒状体内部へ配設され、また請求項３に係る発明では、前記底板は、前記通孔の外周縁から上に折れ曲がる短管状の立上げ筒片が形成され、前記立上げ筒片と、その内部を挿通された前記紐状部材との間に、シール材が充填されることを特徴とする。   In the invention according to claim 2, the tubular body has a cantilever extending in the lateral direction at the upper portion thereof, and an overhanging portion having a through hole is formed in the bottom plate. In the invention according to claim 3, the short plate is formed with a short tubular rising tube piece that is bent upward from the outer peripheral edge of the through hole. A sealing material is filled between the raised cylinder piece and the string-like member inserted through the inside.

請求項４に係る屋上の防水施工方法は、縦にのびる筒状体、及びこの筒状体の下端から外に向かい水平にのびるフランジを有する基部を、全面防水シートを敷設して防水処理された屋上床に固着する基部固着工程と、前記基部のフランジの上面及び屋上床の周辺領域に、これらを連続的に覆う縁部防水シートを貼着する基部防水工程と、前記全面防水シートの中で、筒状部の下部に臨む領域を切除する防水シート切除工程と、前記防水シート除去工程の結果、筒状部の下部に露呈する屋上床基部に引込み孔を形成する引込み孔穿設工程と、ホース、パイプ、導線などの紐状部材を、前記引込み孔を通して屋内に向けて配設する配設工程とを含み、請求項５に係る発明では、前記紐状部材を挿通した引込み孔の上端部にシール材を充填するシール工程を、更に含むことを特徴とする。   The rooftop waterproofing method according to claim 4 is waterproofed by laying a waterproof sheet over the entire surface of the vertically extending tubular body and the base having a flange extending horizontally from the lower end of the tubular body. Among the whole surface waterproof sheet, a base adhering step for adhering to the rooftop floor, a base waterproofing step for adhering an edge waterproof sheet continuously covering the upper surface of the flange of the base and the peripheral area of the rooftop floor, and A waterproof sheet excision step for excising a region facing the lower portion of the tubular portion, and a result of the waterproof sheet removing step, as a result of the waterproof sheet removing step, a lead hole drilling step for forming an entrance hole in the rooftop base exposed at the lower portion of the tubular portion; A disposing step of disposing a string-like member such as a hose, a pipe, and a lead wire indoors through the draw-in hole. In the invention according to claim 5, the upper end portion of the draw-in hole through which the string-like member is inserted Seal the sealant Step, and further comprising.

請求項１に係る発明では、紐状部材の配設のために屋上床に形成された引き込み孔は、基部と上蓋部とによって覆われるため、屋根面の防水性を確保しつつ、ホース、パイプ、導線などを配設できる。特に基部のフランジの上面及び屋上床の周辺領域に、これらを連続的に覆う縁部防水シートを貼着して防水処理を行なうため、シート防水システムなどによる屋上床防水施工の後からでも、簡単にしかも完全に防水処理された配設工事を行なうことができる。しかも紐状部材は、筒状体と上蓋部の隙間を上にのび、緩やかに折れ曲がって筒状体の中に挿通されるため、雨垂れを防止できる。また筒状体に冠着された上蓋部を取り外すことにより、紐状部材の増設、点検作業が簡単に行なえ、そのため、メンテナンスが容易となる。   In the invention according to claim 1, since the lead-in hole formed in the roof floor for the arrangement of the string-like member is covered with the base portion and the upper lid portion, the hose and the pipe are secured while ensuring the waterproof property of the roof surface. A conducting wire or the like can be disposed. In particular, since the edge waterproof sheet that covers them continuously is attached to the upper surface of the flange of the base and the peripheral area of the roof floor to perform waterproof treatment, it is easy even after the roof floor waterproof construction by the sheet waterproof system etc. Moreover, it is possible to perform installation work that is completely waterproof. In addition, since the string-like member extends upward through the gap between the cylindrical body and the upper lid portion and is gently bent and inserted into the cylindrical body, rain dripping can be prevented. Further, by removing the upper lid portion attached to the cylindrical body, the addition and inspection of the string-like member can be easily performed, and therefore the maintenance becomes easy.

請求項２に係る発明においては、紐状体は、筒状体の張出部に形成された通孔を通って筒状体内部へ配設されるため、安定支持される。そして前記通孔は、上蓋部に覆われるため雨が降り込む恐れがない。また請求項３に係る発明では、紐状部材は、短管状の立上げ筒片の内部を挿通して筒状体内に引き込まれるため、エッジ状の孔に擦れて破損する恐れがなく、信頼性が向上する。しかも立上げ筒片と紐状部材との間にシール材が充填されるため、高い水密性を維持できる。   In the invention which concerns on Claim 2, since a string-like body is arrange | positioned in the inside of a cylindrical body through the through-hole formed in the overhang | projection part of the cylindrical body, it is stably supported. And since the said through-hole is covered with an upper cover part, there is no possibility that it will rain. Further, in the invention according to claim 3, since the string-like member is inserted into the tubular body through the inside of the short tubular rising tube piece, there is no risk of being rubbed and damaged by the edge-shaped hole, and the reliability Will improve. Moreover, since the sealing material is filled between the rising tube piece and the string-like member, high water tightness can be maintained.

請求項４に係る発明では、基部防水工程において、基部のフランジの上面及び全面防水シートが敷設された屋上床の周辺領域に、これらを連続的に覆う縁部防水シートを貼着するため、積層された防水シート双方が密着して、その結果高い防水効果が得られる。そして先に敷設された全面防水シートに、紐状部材を通す空所を形成するため、防水シート切除工程においては、前記全面防水シートの中で、基部固着工程により既に固着された筒状部の下部に臨む領域のみを切除する。従って、全面防水シートの切除部は、基部及び上蓋部に水密的に覆われるため、高い防水性を維持できる。また請求項５に係る発明においては、シール工程において、紐状部材を挿通した引込み孔の上端部にシール材を充填するため、防水機能の信頼性が一層向上する。   In the invention according to claim 4, in the base waterproofing step, in order to stick the edge waterproof sheet continuously covering these to the upper surface of the flange of the base and the peripheral area of the rooftop floor where the entire waterproof sheet is laid, As a result, a high waterproof effect is obtained. And, in order to form a space through which the string-like member is passed through the entire waterproof sheet laid in advance, in the waterproof sheet cutting process, in the entire waterproof sheet, the cylindrical part already fixed by the base fixing process Only the area facing the bottom is excised. Accordingly, the cut portion of the entire waterproof sheet is watertightly covered with the base portion and the upper lid portion, so that high waterproofness can be maintained. In the invention according to claim 5, since the sealing material is filled in the upper end portion of the drawing hole through which the string-like member is inserted in the sealing step, the reliability of the waterproof function is further improved.

以下、本発明の実施の一形態を、図示例とともに説明する。図１、２に示すように、屋上の防水構造１は、パイプなどの紐状部材２を屋内側へ引き込むため、屋上床３を貫通して形成される引込み孔４の水密性を確保するために用いるものであり、屋上床３に固着される基部７と、この基部７の上に冠着される上蓋部８とを具える。   Hereinafter, an embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, the roof waterproof structure 1 draws a string-like member 2 such as a pipe into the indoor side, so that the watertightness of the lead-in hole 4 formed through the roof floor 3 is secured. And includes a base portion 7 fixed to the rooftop floor 3 and an upper lid portion 8 to be crowned on the base portion 7.

前記屋上床３は、建築物の構造に応じた各種の構成が含まれる。本形態の建物は、図２に示すように、鉄骨構造の建築物が例示され、Ｉ型鋼を用いた大梁、小梁を含む梁材２１にＰＣコンクリート板２０を架け渡して形成された屋上床基部３Ｂの上に、シート防水工法を用いて防水処理した乾式工法の屋上床３が例示される。ＰＣコンクリート板２０に替えて、ＡＬＣ板、或いは矩形状の外周枠を含むパネルフレームに、合板、押出しコンクリート板などを取り付けた屋上パネルを用いることも良い。更にＲＣ工法では、屋上床３は鉄筋補強されたコンクリート構造の屋上スラブにより構成される。   The rooftop floor 3 includes various configurations according to the structure of the building. As shown in FIG. 2, the building of this embodiment is an example of a steel structure building, and a rooftop formed by laying a PC concrete plate 20 on a beam 21 including a large beam and a small beam using I-shaped steel. On the base 3B, the rooftop floor 3 of the dry construction method waterproofed using the sheet waterproof construction method is illustrated. Instead of the PC concrete plate 20, a roof panel in which a plywood, an extruded concrete plate or the like is attached to an ALC plate or a panel frame including a rectangular outer peripheral frame may be used. Further, in the RC method, the rooftop floor 3 is constituted by a rooftop slab having a concrete structure reinforced with reinforcing bars.

前記シート防水工法としては、主に合成樹脂系シート防水工法、合成ゴム系シート防水工法が汎用される。前記合成樹脂系シート防水工法は、屋上床基部３Ｂ（下地）に塩化ビニル樹脂、ポリオレフィン樹脂、エチレン酢酸ビニル樹脂などを用いた合成樹脂シート（全面防水シート１５）を、接着剤などで張り付けるか、或いは固定金物で固定することにより隙間なく敷設して防水層をつくる工法であり、シート相互は溶着液、熱融着で接合させている。また前記合成ゴム系シート防水工法は、屋上床基部３Ｂ（下地）に加硫ゴム系または非加硫ゴム系の合成ゴムシート（全面防水シート１５）を接着剤で張り付けてローラー転圧して接着させるか、或いは固定金物で固定して防水層をつくる工法であり、シート相互は接着剤、テープ状シーリング材を用いて接着させている。   As the sheet waterproofing method, a synthetic resin sheet waterproofing method and a synthetic rubber sheet waterproofing method are generally used. In the synthetic resin sheet waterproofing method, a synthetic resin sheet (full surface waterproof sheet 15) using vinyl chloride resin, polyolefin resin, ethylene vinyl acetate resin or the like is attached to the roof base 3B (base) with an adhesive or the like. Alternatively, it is a construction method in which a waterproof layer is formed by laying without a gap by fixing with a fixing hardware, and the sheets are joined to each other by a welding solution or heat fusion. In the synthetic rubber sheet waterproofing method, a vulcanized rubber-based or non-vulcanized rubber-based synthetic rubber sheet (entire waterproof sheet 15) is attached to the roof base 3B (base) with an adhesive, and the roller is pressed and bonded. Alternatively, the waterproof layer is formed by fixing with a fixing metal, and the sheets are bonded to each other using an adhesive or a tape-like sealing material.

なお本形態では、図１に示すように、屋上床基部３Ｂの上に断熱材２９を全面敷設し、その上を全面防水シート１５で被覆する工法を例示している。前記断熱材２９により、外断熱構造が形成され、温度条件の厳しい屋上床３の断熱性能が向上する点で好ましい。更に断熱材２９の上面にテーパを付けると、この断熱材２９を敷設するだけの簡単な施工によって正確な雨勾配を設けることができる点で好ましい。   In the present embodiment, as shown in FIG. 1, a construction method in which a heat insulating material 29 is laid on the entire surface of the roof base 3 </ b> B and the entire surface is covered with a waterproof sheet 15 is exemplified. The heat insulating material 29 is preferable in that an outer heat insulating structure is formed and the heat insulating performance of the rooftop floor 3 having severe temperature conditions is improved. Further, it is preferable to taper the upper surface of the heat insulating material 29 in that an accurate rain gradient can be provided by a simple construction in which the heat insulating material 29 is laid.

この他屋上床３の防水処理は、無機質系、有機質系、混合系の防水剤を混入したセメントモルタル、又はセメントペーストを、コテを用いて下地に塗り付けることにより防水層を形成するモルタル防水工法、或いは下地に複数枚のルーフィング類を溶融アスファルトで密着させて張り重ねることにより防水層をつくるアスファルト防水工法、更には下地にゴムアスファルト系、ウレタンゴム系、アクリルゴム系の吹付け用防水材を、専用の吹付け機械を用いて吹き付けることにより一定の厚さの防水層をつくる塗膜防水工法などを用いることも良い。   The waterproof treatment of the other rooftop floor 3 includes a mortar waterproofing method in which a waterproof layer is formed by applying a cement mortar mixed with an inorganic, organic or mixed waterproofing agent, or cement paste to the ground using a trowel, Alternatively, asphalt waterproofing method that creates a waterproof layer by sticking multiple roofings on the ground with molten asphalt and stretching them, and further, rubber asphalt-based, urethane rubber-based, acrylic rubber-based waterproofing materials for spraying, It is also possible to use a coating film waterproofing method that creates a waterproof layer of a certain thickness by spraying using a dedicated spraying machine.

前記引込み孔４は、屋上床基部３Ｂ及び防水層を上下に連続してのび、通常丸孔状に形成される。そして引込み孔４は、屋上床３に配置される空調機器、貯湯タンク、アンテナ、集光器などの設備機器の近傍で、屋内への配管、配線の経路が最短となる位置に形成される。引込み孔４は、ＲＣ、ＰＣコンクリートなどの構造においては、鉄筋との干渉を避けるため、床構築と同時に形成されることが好ましい。ＡＬＣパネル、その他の乾式工法では、屋上床３構築後、所定位置に穿設して形成することもできる。   The lead-in hole 4 is usually formed in a round hole shape by continuously extending the roof base 3B and the waterproof layer up and down. And the lead-in hole 4 is formed in the position where the indoor piping and wiring route are shortest in the vicinity of equipment such as air conditioners, hot water storage tanks, antennas, and condensers arranged on the rooftop floor 3. In a structure such as RC or PC concrete, the lead-in hole 4 is preferably formed simultaneously with floor construction in order to avoid interference with the reinforcing bar. In the ALC panel and other dry methods, the rooftop floor 3 can be formed and then drilled at a predetermined position.

前記基部７は、図１、３に示すように、縦にのびる筒状体５と、この筒状体５の下端全周から外に向かい水平にのびるフランジ６を有する。   As shown in FIGS. 1 and 3, the base 7 includes a cylindrical body 5 that extends vertically and a flange 6 that extends horizontally from the entire periphery of the lower end of the cylindrical body 5.

前記筒状体５は、本形態では、横断面長矩形状の角筒状をなす。また筒状体５は、下板２２によって下部が塞がれるが、該下板２２には、その中央部が長矩形状に大きく欠かれた下窓２３が形成される。また本形態の筒状体５は、長手方向の両側の側部に片持ち状の張出部１２、１２が形成される。この張出部１２は、筒状体５の側板が上部において外向きに折れ曲がった底板１０が設けられ、かつこの底板１０の先端が再度上に折れ曲がることによって形成される。   In the present embodiment, the cylindrical body 5 has a rectangular shape with a long rectangular cross section. Further, the lower portion of the cylindrical body 5 is closed by the lower plate 22, but the lower plate 22 is formed with a lower window 23 whose central portion is largely cut into a long rectangular shape. Moreover, the cylindrical body 5 of this embodiment is formed with cantilevered protruding portions 12 and 12 on both sides in the longitudinal direction. The projecting portion 12 is formed by providing a bottom plate 10 in which the side plate of the cylindrical body 5 is bent outward at the top, and the tip of the bottom plate 10 is bent upward again.

前記張出部１２の底板１０は、横に並んだ一対の丸孔状の通孔１１が形成される。そして本形態の底板１０は、通孔１１の外周縁から上に折れ曲がり、かつ小高さで立ち上がって形成された短管状の立上げ筒片１３が形成される。前記通孔１１は、その直径が例えば、３０〜１２０ｍｍ程度、好ましくは４５〜９０ｍｍ、本形態では６０ｍｍとしている。また前記立上げ片は、立上げ高さが例えば、１０〜４０ｍｍ程度、好ましくは１５〜３０ｍｍ、本形態では２０ｍｍとしている。   The bottom plate 10 of the overhanging portion 12 is formed with a pair of round holes 11 arranged side by side. The bottom plate 10 of this embodiment is formed with a short tubular rising cylinder piece 13 that is bent upward from the outer peripheral edge of the through-hole 11 and rises at a small height. The diameter of the through hole 11 is, for example, about 30 to 120 mm, preferably 45 to 90 mm, and 60 mm in this embodiment. The rising piece has a rising height of, for example, about 10 to 40 mm, preferably 15 to 30 mm, and 20 mm in this embodiment.

また前記底板１０は、その内端縁に小高さに立上がる内片２４が形成される。この内片２４は、通孔１１から入った雨水を堰き止めて、それ以上内部への浸入を阻止できるため、防水性が向上する点で好ましい。   The bottom plate 10 is formed with an inner piece 24 that rises to a small height at the inner edge. The inner piece 24 is preferable in terms of improving waterproofness because it can dam the rainwater entering from the through hole 11 and prevent further intrusion into the inside.

筒状体５は、その上端全外周に水密材２５が鉢巻状に周着される。前記水密材２５は、天然ゴム、クロロプレンゴム（ＣＲ）スポンジ、エチレンプロピレンゴム（ＥＤＰＭ）スポンジ、ニトリルゴム（ＮＢＲ）スポンジ、シリコンゴムスポンジなどを用いる。更に筒状体５は、その双方の張出部１２の外側面の中位に、木桟などを用いた釘打ち可能な取付桟２６が一体に設けられる。   The cylindrical body 5 has a watertight material 25 around the entire outer periphery of its upper end. As the watertight material 25, natural rubber, chloroprene rubber (CR) sponge, ethylene propylene rubber (EDPM) sponge, nitrile rubber (NBR) sponge, silicon rubber sponge or the like is used. Further, the tubular body 5 is integrally provided with a mounting bar 26 that can be nailed using a wooden bar or the like in the middle of the outer surface of both the overhanging parts 12.

前記フランジ６は、本形態では下板２２と一体に連続して形成され、矩形状をなす。またフランジ６には、全周に亘って複数のビス孔２７が隔設される。そして、図４に示すように、前記ビス孔２７に挿入されたビス２８を、前記全面防水シート１５を挿通して屋上床３に打ち込むことにより、基部７が屋上床３に固着される。なお基部７は、筒状体５の下窓２３から前記引込み孔４が露呈するように配置して固着される。   In the present embodiment, the flange 6 is continuously formed integrally with the lower plate 22 and has a rectangular shape. The flange 6 is provided with a plurality of screw holes 27 along the entire circumference. Then, as shown in FIG. 4, the base portion 7 is fixed to the rooftop floor 3 by driving the screws 28 inserted into the screw holes 27 into the rooftop floor 3 through the entire waterproof sheet 15. The base 7 is disposed and fixed so that the drawing hole 4 is exposed from the lower window 23 of the cylindrical body 5.

前記筒状体５の外側面下部には、図５に示すように、帯状のシート部材３２が全周に巻き付けた状態で貼着される。そしてこのシート部材３２の上端部と、筒状体５との間は、（変性）シリコーン系・ポリサルファイド系・ポリウレタン系などの湿気硬化タイプ、アクリル系・ＳＢＲ系などのエマルション乾燥硬化タイプ、ブチルゴム系などの溶剤型乾燥硬化タイプの他、アクリルウレタン系・シリコーン系など２成分型反応硬化タイプ、その他のシーリング材１４を用いて封止される。   As shown in FIG. 5, a strip-shaped sheet member 32 is attached to the lower portion of the outer surface of the cylindrical body 5 in a state of being wound around the entire circumference. The space between the upper end of the sheet member 32 and the cylindrical body 5 is a moisture-curing type such as (modified) silicone, polysulfide, or polyurethane, an emulsion dry-curing type such as acrylic or SBR, or a butyl rubber system. In addition to the solvent-type dry curing type such as acryl urethane type and silicone type, two-component type reaction curing type and other sealing materials 14 are used for sealing.

前記固着された基部７のフランジ６の上面及び屋上床３のフランジの周辺領域３Ａには、図６に示すように、これらを連続的に覆う縁部防水シート９が貼着される。本形態の縁部防水シート９は、広巾、細巾の２種類の帯状のシート材９Ａ、９Ｂに分割して形成される。そして各々が前記横断面長矩形状の筒状体５の下端から四方に向かい水平にのびるフランジ６から屋上床３の周辺領域３Ａに亘って縦、横に枠状に、しかも互いの端部を重ね合わせて貼着される。このとき、筒状体５の短辺に沿って比較的長くのびるフランジ６に、広巾のシート材９Ａを配し、かつ長辺に沿って比較的短かくのびるフランジ６に、細巾のシート材９Ｂを配することにより屋上床３との貼着巾が略同巾に揃えられ、フランジ６全周に亘り均一な水密性を確保している。   As shown in FIG. 6, an edge waterproof sheet 9 that continuously covers these is attached to the upper surface of the flange 6 of the base 7 and the peripheral area 3 </ b> A of the flange of the rooftop floor 3. The edge waterproof sheet 9 of the present embodiment is formed by being divided into two types of strip-shaped sheet materials 9A and 9B having a wide width and a narrow width. Each of the cylindrical bodies 5 having a long rectangular cross section is horizontally and vertically extending from the lower end to the peripheral area 3A of the rooftop floor 3 from the flange 6 to the frame area in the vertical and horizontal directions, and the ends of each are overlapped. Attached together. At this time, a wide sheet material 9A is arranged on the flange 6 extending relatively long along the short side of the cylindrical body 5, and the narrow sheet material is disposed on the flange 6 extending relatively short along the long side. By arranging 9B, the sticking width with the rooftop floor 3 is made substantially the same, and uniform watertightness is ensured over the entire circumference of the flange 6.

本形態では、フランジ６と縁部防水シート９とは粘着剤を塗布することにより密着させ、他方屋上床３に敷設された全面防水シート１５と縁部防水シート９とは、公知の熱風器を用いて溶着することにより密着性を確保しいている。更には、図６に示すように、筒状体５の下部に巻き付けたシート部材３２と、縁部防水シート９との間は、前記と同様のシーリング材１４を用いて封止される。   In this embodiment, the flange 6 and the edge waterproof sheet 9 are brought into close contact with each other by applying an adhesive, and the entire waterproof sheet 15 and the edge waterproof sheet 9 laid on the rooftop floor 3 are made of a known hot air blower. Adhesion is secured by using and welding. Furthermore, as shown in FIG. 6, the sheet member 32 wound around the lower portion of the tubular body 5 and the edge waterproof sheet 9 are sealed using the same sealing material 14 as described above.

前記上蓋部８は、図１、３に示すように、伏せられた角枡状をなすとともに前記筒状体５の上部よりも少し大きめに形成され、筒状体５の上部に冠着しうるように形成される。そして、上蓋部８に挿通した固着具３０を、前記取付桟２６に打ち込むことにより、上蓋部８は、筒状体５にガタツキなく固着することができる。さらに上蓋部８を筒状体５に冠着した状態において、筒状体５と上蓋部８との間には、前記水密材２５が介挿されるため、雨水の浸入を確実の阻止しうる点で好ましい。前記上蓋部８は、図１に鎖線で示すように、その外表面全体をシート部材３１で覆うと、上蓋部８の防水性能が向上する点で好ましい。   As shown in FIGS. 1 and 3, the upper lid portion 8 has an obstructed square hook shape and is formed slightly larger than the upper portion of the cylindrical body 5, and can be attached to the upper portion of the cylindrical body 5. Formed as follows. And the upper cover part 8 can be fixed to the cylindrical body 5 without rattling by driving the fixing tool 30 inserted through the upper cover part 8 into the mounting bar 26. Further, since the watertight member 25 is inserted between the tubular body 5 and the upper lid portion 8 in a state where the upper lid portion 8 is attached to the tubular body 5, it is possible to reliably prevent rainwater from entering. Is preferable. As shown by a chain line in FIG. 1, the upper lid portion 8 is preferably covered with a sheet member 31 in terms of improving the waterproof performance of the upper lid portion 8.

このように紐状部材２の配設のために屋上床３で開口する引込み孔４は、前記基部７及び上蓋部８によって覆われるため、屋根面の防水性が確保され雨漏れを生じることがない。特に基部７のフランジ６の上面及び屋上床３の周辺領域３Ａに、これらを連続的に覆う縁部防水シート９を貼着して防水処理を行なうため、シート防水工法を用いて屋上床３の防水処理を施工した後からでも、簡単にしかも完全に防水処理された紐状部材２の配設工事を行なうことができる。   Thus, the lead-in hole 4 opened on the rooftop floor 3 for the arrangement of the string-like member 2 is covered with the base 7 and the upper lid 8, so that the waterproofness of the roof surface is ensured and rain leakage may occur. Absent. In particular, in order to perform waterproofing by adhering an edge waterproof sheet 9 continuously covering the upper surface of the flange 6 of the base 7 and the peripheral area 3A of the roof floor 3, the sheet waterproofing method is used for the roof floor 3 Even after the waterproof treatment is applied, the installation work of the string-like member 2 that has been completely waterproofed can be performed easily.

前記紐状部材２は、本形態では、図２に示すように、屋上に複数台設置された空調機器の屋外機３４から、建物内へ配管される冷媒パイプ２Ａの場合が例示される。紐状部材２には、この他、屋上に設置される貯水タンクの給水パイプ、貯湯タンクの給湯管、屋上に設置される各種アンテナから引き込まれる導線、太陽光を集める採光器から建物内部に光を送る光ファイバーケーブルなどが含まれる。   In the present embodiment, as shown in FIG. 2, the string-like member 2 is exemplified by a refrigerant pipe 2 </ b> A that is piped into the building from an outdoor unit 34 of an air conditioner installed on the rooftop. In addition, the string-like member 2 includes a water supply pipe for a water storage tank installed on the rooftop, a hot water supply pipe for a hot water storage tank, conductors drawn from various antennas installed on the rooftop, and a light collecting device for collecting sunlight into the building. Including fiber optic cable and so on.

屋上床３の屋外機など設備機器類に接続された紐状部材２は、図１に示すように、屋上床３から立ち上がることによって上蓋部８の下端縁から筒状体５と上蓋部との隙間を上に向けてのび、更に筒状体の上部で逆Ｕ字状に緩やかに折れ曲がって筒状体５の内部に挿通される。そしてその先端側が、筒状体５の下端に臨む屋上床３に穿設された引込み孔４を通って屋内へ向けて配設される。従って、外部から筒状体５の内側へ導入される紐状部材２は、筒状体５と上蓋部８の隙間を上にのび、緩やかに折れ曲がって筒状体５の中に挿通されるため、雨垂れを生じることなく防水性が向上する。更には冠着された上蓋部を取り外すことにより、紐状部材の増設、点検作業を簡単に行なえ、そのため、メンテナンスが容易となる。   As shown in FIG. 1, the string-like member 2 connected to equipment such as an outdoor unit on the rooftop floor 3 rises from the lower end edge of the upper lid portion 8 by rising from the rooftop floor 3. The gap extends upward, and further gently bends in an inverted U shape at the top of the tubular body and is inserted into the tubular body 5. And the front end side is arrange | positioned indoors through the lead-in hole 4 drilled in the rooftop floor 3 which faces the lower end of the cylindrical body 5. FIG. Therefore, the string-like member 2 introduced from the outside to the inside of the cylindrical body 5 extends upward through the gap between the cylindrical body 5 and the upper lid portion 8, and is gently bent and inserted into the cylindrical body 5. Water resistance is improved without causing dripping. Further, by removing the upper cover part attached, the addition of the string-like member and the inspection work can be easily performed, so that the maintenance becomes easy.

本形態の紐状部材２は、図９（Ａ）に示すように、前記筒状体５の張出部１２に形成された通孔１１を通って筒状体５の内側へ挿通される。そのため、紐状部材２は通孔１１によって安定した状態で支持され、しかも前記通孔１１は上蓋部８によって覆われるため、雨水の降り込みが防止できる。   As shown in FIG. 9A, the string-like member 2 of this embodiment is inserted into the tubular body 5 through the through hole 11 formed in the overhanging portion 12 of the tubular body 5. Therefore, the string-like member 2 is supported in a stable state by the through-holes 11 and the through-holes 11 are covered by the upper lid portion 8, so that rain water can be prevented from falling.

前記紐状部材２は、前記通孔１１から立ち上がる立上げ筒片１３内部を挿通して筒状体５内部へ配設される。従って、例えばパイプ、導線などの被覆層がエッジ状の孔縁に擦れて破損することがなく、信頼性が向上する点で好ましい。   The string-like member 2 is disposed inside the cylindrical body 5 through the inside of the rising cylindrical piece 13 rising from the through hole 11. Therefore, for example, a coating layer such as a pipe or a conductor is not rubbed and damaged by the edge-shaped hole edge, which is preferable in terms of improving reliability.

前記立上げ筒片１３と紐状部材２との間には、前記と同様なシーリング材１４が充填されて、隙間が封止される。そのため、紐状部材２の筒状体５内部への導入部が完全にシールされて、水密性能に優れる点で好ましい。また本形態では、図９（Ｂ）に示すように、前記屋上床３の引込み孔４と紐状部材２との間にも、同様のシーリング材１４を充填して封止している。   Between the rising cylinder piece 13 and the string-like member 2, a sealing material 14 similar to that described above is filled to seal the gap. Therefore, the introduction part of the string-like member 2 into the cylindrical body 5 is completely sealed, which is preferable in terms of excellent watertightness. Further, in this embodiment, as shown in FIG. 9B, the same sealing material 14 is filled between the lead-in hole 4 and the string-like member 2 of the rooftop floor 3 and sealed.

図１０は他の実施形態を例示している。以下異なる内容について説明し、それ以外は図中に表れた主要構成に同じ符号を付すだけとする。本形態の筒状体５は、その一側にのみ張出部１２を設けている。そして基部７は、引込み孔４が張出部１２を設けた側の反対側に偏位するように配置される。本形態の紐状部材２は、屋上床３に設置されて太陽光を集める集光器３６に接続され、その光を屋内へ導く光ファイバーケーブル２Ｂにより形成されている。   FIG. 10 illustrates another embodiment. Hereinafter, different contents will be described, and other than that, only the same reference numerals are given to the main components shown in the figure. The tubular body 5 of this embodiment is provided with the overhang portion 12 only on one side thereof. And the base 7 is arrange | positioned so that the drawing hole 4 may deviate on the opposite side to the side in which the overhang | projection part 12 was provided. The string-like member 2 of this embodiment is formed by an optical fiber cable 2B that is installed on the rooftop floor 3 and connected to a collector 36 that collects sunlight and guides the light indoors.

本発明の屋上の防水施工方法は、前記屋上の防水構造１を屋上床３に構築する際に用いられるものであり、基部固着工程と、基部防水工程と、防水シート切除工程と、引込み孔穿設工程と、配設工程とを含む。尚、前記詳説した屋上の防水構造１と重複する構成については、説明を省略する。   The rooftop waterproofing construction method of the present invention is used when constructing the rooftop waterproof structure 1 on the rooftop floor 3, and includes a base fixing step, a base waterproofing step, a waterproof sheet cutting step, and a pull-in hole drilling. An installation step and an arrangement step. In addition, description is abbreviate | omitted about the structure which overlaps with the waterproof structure 1 mentioned above in detail.

先ず基部固着工程においては、図３、４に示すように、前記基部７を、前記全面防水シート１５を敷設して防水処理が完了した屋上床３の紐状部材２を配設する箇所に載置する。そして前記フランジ６のビス孔２７に挿通したビス２８を屋上床３に打ち込むことにより、基部７を屋上床３に固着する。これ以外の方法として、接着剤を用いて基部７を屋上床３に固着することもよい。   First, in the base fixing step, as shown in FIGS. 3 and 4, the base 7 is placed on the place where the string-like member 2 of the rooftop floor 3 where the waterproofing process is completed by laying the entire waterproof sheet 15 is disposed. Put. Then, the base 7 is fixed to the rooftop floor 3 by driving the screws 28 inserted into the screw holes 27 of the flange 6 into the rooftop floor 3. As another method, the base 7 may be fixed to the rooftop floor 3 using an adhesive.

次の基部防水工程において本形態では、先ず図５に示すように、前記筒状体５の外側面下部全周に、帯状のシート部材３２を巻き付けた状態で貼着する。そして図６に示すように、前記基部７のフランジ６の上面及び全面防水シート１５が敷設された屋上床３のフランジの周辺領域３Ａに、両者を連続的に覆う縁部防水シート９を貼着する。   In the next base waterproofing step, in this embodiment, first, as shown in FIG. 5, the belt-like sheet member 32 is stuck around the entire lower periphery of the outer surface of the cylindrical body 5. And as shown in FIG. 6, the edge waterproof sheet 9 which covers both continuously on the upper surface of the flange 6 of the base 7 and the peripheral area 3A of the flange of the rooftop floor 3 on which the entire waterproof sheet 15 is laid is attached. To do.

本形態の縁部防水シート９は、広巾、細巾の２種類の帯状のシート材９Ａ、９Ｂを用いる。そして先ず筒状体５の長辺に沿って比較的短かくのびる両側のフランジ６及び前記周辺領域３Ａに、細巾のシート材９Ｂを貼着する。このとき縁部防水シート９は、フランジ６とは粘着剤を用いて貼着し、他方全面防水シート１５とは熱ローラ、熱風ガンなどを用いて熱溶着させる。同様にして筒状体５の短辺に沿って比較的長くのびる両側のフランジ６及び前記周辺領域３Ａに、広巾のシート材９Ａを貼着する。   The edge waterproof sheet 9 of this embodiment uses two types of strip-shaped sheet materials 9A and 9B, wide and narrow. First, a narrow sheet material 9B is attached to the flanges 6 on both sides that extend relatively short along the long side of the cylindrical body 5 and the peripheral region 3A. At this time, the edge waterproof sheet 9 is adhered to the flange 6 using an adhesive, and the other entire waterproof sheet 15 is thermally welded using a heat roller, a hot air gun or the like. Similarly, a wide sheet material 9 </ b> A is attached to the flange 6 on both sides that extends relatively long along the short side of the cylindrical body 5 and the peripheral region 3 </ b> A.

前記の如く、基部防水工程において、基部７のフランジ６の上面と全面防水シート１５で覆われた屋上床３の周辺領域３Ａとを連続的に覆って縁部防水シート９を貼着するため、重なり合う防水シート双方が密着して、防水機能に高い信頼性が得られる。しかも本形態では、図５、６に示すように、シート部材３２の上端部と筒状体５との間、及びシート部材３２と縁部防水シート９との間に、前記と同様のシーリング材１４を用いて封止し、防水性の信頼性を更に高めている。   As described above, in the base waterproofing process, in order to stick the edge waterproof sheet 9 continuously covering the upper surface of the flange 6 of the base 7 and the peripheral area 3A of the rooftop floor 3 covered with the entire waterproof sheet 15, The overlapping waterproof sheets are in close contact with each other, and high reliability is obtained for the waterproof function. Moreover, in this embodiment, as shown in FIGS. 5 and 6, the same sealing material as described above is provided between the upper end portion of the sheet member 32 and the cylindrical body 5 and between the sheet member 32 and the edge waterproof sheet 9. 14 is used to further enhance the reliability of waterproofness.

次いで前記防水シート切除工程では、図７に示すように、筒状体５の下板２２に形成された矩形状の下窓２３の内縁に沿って、カッターナイフ３６を走らせることにより、前記全面防水シート１５の中で、前記下窓２３を通して筒状体５の下部に臨む領域を切除する。なおカッターナイフ３８に替わる専用の切断工具を使用し、必要サイズの例えば丸孔を切り抜くようにしてもよい。   Next, in the waterproof sheet cutting step, as shown in FIG. 7, the cutter knife 36 is run along the inner edge of the rectangular lower window 23 formed on the lower plate 22 of the cylindrical body 5, thereby In the waterproof sheet 15, a region facing the lower part of the cylindrical body 5 is cut out through the lower window 23. Note that a special cutting tool in place of the cutter knife 38 may be used to cut out, for example, a round hole of a required size.

このように、防水シート切除工程においては、先工程で全面防水シート１５上に固着し、さらに全周縁を防水処理した基部７の筒状体５の下部に臨む領域のみを切除する。従って、シート防水工法により全面処理された後に、全面防水シート１５の任意箇所に、紐状部材２の配設用の切欠部を設けても水密性能を維持できる。   Thus, in the waterproof sheet excision step, only the region facing the lower portion of the cylindrical body 5 of the base portion 7 which is fixed on the entire waterproof sheet 15 in the previous step and further waterproofed on the entire periphery is excised. Therefore, the watertight performance can be maintained even if the notch portion for arranging the string-like member 2 is provided at an arbitrary position of the entire waterproof sheet 15 after the entire surface is processed by the sheet waterproof method.

次いで前記引込み孔穿設工程では、図８に示すように、防水シート切除工程の結果、全面防水シート１５が切除されることにより、筒状体５の下部で前記下窓２３から露呈する屋上床基部３Ｂに、電動ドリルなどの専用工具３７を用いて引込み孔４を穿設する。引込み孔４は、必要に応じて２個以上が穿設されることもある。   Next, in the drawing-in hole drilling step, as shown in FIG. 8, as a result of the waterproof sheet excision step, the entire waterproof sheet 15 is excised, thereby exposing the rooftop floor exposed from the lower window 23 below the cylindrical body 5. The drawing hole 4 is drilled in the base 3B using a dedicated tool 37 such as an electric drill. Two or more drawing holes 4 may be drilled as necessary.

次いで前記配設工程では、本形態では図１、２に示すように、屋上に設置された空調機器の屋外機３４に接続された冷媒パイプ２Ａからなる紐状部材２を屋内空間へ向けて配管する。前記冷媒パイプ２Ａは、筒状体５の張出部１２に形成された通孔１１を通して筒状体５の内側へ挿通させ、筒状体の上部で逆Ｕ字状に緩やかに折り曲げて筒状体５の下方へとのばす。そして更にその先端を前記引込み孔４を通して屋内空間へと配管する。   Next, in the arrangement step, as shown in FIGS. 1 and 2, in this embodiment, the string-like member 2 composed of the refrigerant pipe 2A connected to the outdoor unit 34 of the air conditioner installed on the roof is piped toward the indoor space. To do. The refrigerant pipe 2A is inserted into the cylindrical body 5 through a through hole 11 formed in the projecting portion 12 of the cylindrical body 5, and is gently bent into an inverted U shape at the upper part of the cylindrical body to form a cylindrical shape. Extend down the body 5. Further, the tip is piped into the indoor space through the drawing hole 4.

次いで本形態では、図９（Ｂ）に示すように、シール工程において、冷媒パイプ２Ａが挿通された引込み孔４の上端部を前記と同様のシーリング材１４を充填する。従って、全面防水シート１５を切除して穿設した引込み孔４の水密性能を向上し、信頼性を高めうる点で好ましい。更に図９（Ａ）に示すように、冷媒パイプ２Ａが挿通した前記通孔１１にも、同様のシーリング材１４を充填すると防水性がより向上する点で好ましい。   Next, in this embodiment, as shown in FIG. 9B, the sealing material 14 similar to the above is filled in the upper end portion of the drawing hole 4 through which the refrigerant pipe 2A is inserted in the sealing step. Therefore, it is preferable in that the watertight performance of the lead-in hole 4 formed by cutting out the entire waterproof sheet 15 and improving the reliability can be improved. Furthermore, as shown in FIG. 9 (A), it is preferable that the same sealing material 14 is filled in the through hole 11 through which the refrigerant pipe 2A is inserted, in that the waterproof property is further improved.

次いで、図３に示すように、角枡状をなす上蓋部８を前記筒状体５の上部に冠着する。そして上蓋部８に挿通した固着具３０を、筒状体５の取付桟２６に打ち込んで、上蓋部８を固着することにより、本発明の屋上の防水施工方法が完了する。   Next, as shown in FIG. 3, an upper lid portion 8 having a square hook shape is attached to the upper portion of the cylindrical body 5. And the fixing tool 30 penetrated to the upper cover part 8 is driven into the attachment bar 26 of the cylindrical body 5, and the upper cover part 8 is fixed, and the waterproof construction method of the present invention is completed.

尚、叙上の説明は本発明の実施の形態を例示したものである。従って本発明の技術的範囲はこれに何ら限定されるものではなく、前記した実施の形態の他にも、各種の変形例が含まれる。   The above description is an example of the embodiment of the present invention. Therefore, the technical scope of the present invention is not limited to this, and various modifications are included in addition to the above-described embodiment.

本発明の一実施の形態を例示する断面図である。It is sectional drawing which illustrates one embodiment of this invention. その斜視図である。FIG. その分解斜視図である。FIG. その施工状態を説明する斜視図である。It is a perspective view explaining the construction state. その異なる施工状態を説明する斜視図である。It is a perspective view explaining the different construction state. その更に異なる施工状態を説明する斜視図である。It is a perspective view explaining the further different construction state. その更に異なる施工状態を説明する斜視図である。It is a perspective view explaining the further different construction state. その更に異なる施工状態を説明する斜視図である。It is a perspective view explaining the further different construction state. （Ａ）（Ｂ）は異なる箇所のシール構造を例示する要部断面図である。(A) (B) is principal part sectional drawing which illustrates the seal structure of a different location. 他の実施形態を例示する断面図である。It is sectional drawing which illustrates other embodiment. 従来例の断面図である。It is sectional drawing of a prior art example.

符号の説明Explanation of symbols

１ 屋上の防水構造
２ 紐状部材
３ 屋上床
３Ａ 周辺領域
３Ｂ 屋上床基部
４ 引込み孔
５ 筒状体
６ フランジ
７ 基部
８ 上蓋部
９ 縁部防水シート
１０ 底板
１１ 通孔
１２ 張出部
１３ 立上げ筒片
１４ シーリング材
１５ 全面防水シート DESCRIPTION OF SYMBOLS 1 Rooftop waterproof structure 2 String-like member 3 Rooftop floor 3A Peripheral area 3B Rooftop base 4 Retracting hole 5 Tubular body 6 Flange 7 Base 8 Top lid 9 Edge waterproof sheet 10 Bottom plate 11 Through hole 12 Overhang 13 Tube piece 14 Sealing material 15 Whole surface waterproof sheet

Claims (5)

ホース、パイプ、導線などの紐状部材を屋内に向けて配設する際、屋上床に形成される引込み孔の防水性を確保するための屋上の防水構造であって、
縦にのびる筒状体、及びこの筒状体の下端から外に向かい水平にのびるフランジを有して屋上床に固定される基部と、伏せられた枡状をなすとともに筒状部の上部に冠着される上蓋部とを具え、
前記紐状部材は、上蓋部の下端縁から筒状体と上蓋部との隙間を上に向けてのびるとともに、筒状体の上部で逆Ｕ字状に緩やかに折れ曲がって筒状体の中に挿通され、かつ筒状体の下端に臨む屋上床に穿設された引込み孔を通って屋内へ配設され、
前記フランジの上面及び屋上床の周辺領域に、これらを連続的に覆う縁部防水シートが貼着されることを特徴とする屋上の防水構造。 When a string-like member such as a hose, pipe, or conductive wire is arranged indoors, it is a waterproof structure on the roof to ensure the waterproof property of the lead-in hole formed on the roof,
A cylindrical body that extends vertically and a base that is fixed to the rooftop floor with a flange that extends horizontally from the lower end of the cylindrical body, and a crowned upper part of the tubular part that forms a face-down saddle shape With an upper lid to be worn,
The string-like member extends upward from the lower end edge of the upper lid portion with the gap between the cylindrical body and the upper lid portion upward, and gently bends in an inverted U shape at the upper portion of the tubular body into the cylindrical body. It is inserted indoors through a lead-in hole formed in the rooftop floor that is inserted and faces the lower end of the cylindrical body,
A waterproof structure on the roof, wherein an edge waterproof sheet that continuously covers these is attached to the upper surface of the flange and the peripheral area of the roof floor. 前記筒状体は、上部において片持ち状に横方向に延設され、かつ底板に通孔を有する張出部が形成され、 前記紐状部材は、前記通孔を通って、筒状体内部へ配設されることを特徴とする請求項１記載の屋上の防水構造。   The tubular body is cantilevered in the upper part in the lateral direction, and an overhanging portion having a through hole is formed in the bottom plate. The string member passes through the through hole and is formed inside the tubular body. The roof waterproof structure according to claim 1, wherein the roof waterproof structure is disposed on the roof. 前記底板は、前記通孔の外周縁から上に折れ曲がる短管状の立上げ筒片が形成され、
前記立上げ筒片と、その内部を挿通された前記紐状部材との間に、シール材が充填されることを特徴とする請求項１又は２記載の屋上の防水構造。 The bottom plate is formed with a short tubular rising tube piece that is bent upward from the outer peripheral edge of the through hole,
The roof waterproof structure according to claim 1 or 2, wherein a sealing material is filled between the rising cylinder piece and the string-like member inserted through the rising cylinder piece. 縦にのびる筒状体、及びこの筒状体の下端から外に向かい水平にのびるフランジを有する基部を、全面防水シートを敷設して防水処理された屋上床に固着する基部固着工程と、 前記基部のフランジの上面及び屋上床の周辺領域に、これらを連続的に覆う縁部防水シートを貼着する基部防水工程と、
前記全面防水シートの中で、筒状部の下部に臨む領域を切除する防水シート切除工程と、
前記防水シート除去工程の結果、筒状部の下部に露呈する屋上床基部に引込み孔を形成する引込み孔穿設工程と、
ホース、パイプ、導線などの紐状部材を、前記引込み孔を通して屋内に向けて配設する配設工程とを含むことを特徴とする屋上の防水施工方法。 A base fixing step of fixing a base having a cylindrical body extending vertically and a flange extending horizontally outward from a lower end of the cylindrical body to a waterproof rooftop by laying a whole surface waterproof sheet; and A base waterproofing step of sticking an edge waterproof sheet continuously covering the upper surface of the flange and the peripheral area of the rooftop floor,
Among the entire waterproof sheet, a waterproof sheet excision step of excising a region facing the lower portion of the cylindrical portion,
As a result of the waterproof sheet removing step, a lead-in hole drilling step for forming a lead-in hole in the rooftop base exposed at the bottom of the cylindrical part,
A rooftop waterproofing method characterized by including a disposing step of disposing a string-like member such as a hose, a pipe, and a lead wire indoors through the drawing hole. 前記紐状部材を挿通した引込み孔の上端部にシール材を充填するシール工程を、更に含むことを特徴とする請求項４記載の屋上の防水施工方法。   5. The rooftop waterproofing method according to claim 4, further comprising a sealing step of filling a sealing material in an upper end portion of the drawing hole through which the string-like member is inserted.

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