JP3228174U

JP3228174U - Jig for tensioning impermeable sheet

Info

Publication number: JP3228174U
Application number: JP2020002709U
Authority: JP
Inventors: 正基高橋; 千明中尾; 聖児内山
Original assignee: 洋伸建設株式会社
Priority date: 2020-07-03
Filing date: 2020-07-03
Publication date: 2020-10-15
Anticipated expiration: 2030-07-03

Abstract

【課題】巨大で重量化している広幅の遮水シートの厚みが薄くなっても挟む力が弱くならない構造の遮水シートの引張用治具を提供する。【解決手段】支軸２を介して鋏状に交差する一対の挟持体１ａ、１ｂを設け、挟持体の先端側には、それぞれが相対向する対向板３ａ、３ｂを設け、これらの内面側には、遮水シートＸを挟持する帯状の起立片４ａ、４ｂを、挟持体と直交する方向に、それぞれ所定間隔を保ち複数本設け、且つ、これら起立板は、交互に噛み合うように両対向板に植設し、挟持体のそれぞれ後端側には、ロープＹａ、Ｙｂを装着する穴５ａ、５ｂをそれぞれ設けると共に、挟持体の支軸と、穴との中間部付近には、挟持体にそれぞれ内側に向けてブラケット６ａ、６ｂを設け、これらブラケットにそれぞれ長穴７ａ、７ｂを設け、これら両長穴に緩み留めボルト８を設けた。【選択図】図１PROBLEM TO BE SOLVED: To provide a jig for pulling a water-impervious sheet having a structure in which the pinching force is not weakened even if the thickness of the huge and heavy wide-width water-impervious sheet becomes thin. SOLUTION: A pair of holding bodies 1a and 1b intersecting in a scissors shape via a support shaft 2 are provided, and facing plates 3a and 3b facing each other are provided on the tip end side of the holding bodies, and the inner surface side thereof. A plurality of strip-shaped standing pieces 4a and 4b for sandwiching the impermeable sheet X are provided in a direction orthogonal to the sandwiching body at predetermined intervals, and these standing plates are opposed to each other so as to alternately mesh with each other. It is planted on a plate, and holes 5a and 5b for mounting ropes Ya and Yb are provided on the rear end side of the holding body, respectively, and the holding body is provided near the intermediate portion between the support shaft of the holding body and the hole. Brackets 6a and 6b were provided inward, respectively, elongated holes 7a and 7b were provided in these brackets, and loosening bolts 8 were provided in both elongated holes. [Selection diagram] Fig. 1

Description

この考案は、遮水シートの引張用冶具に関するものであって、特に、遮水シートでも、巨大で重量化している広幅の遮水シートを引き寄せあるいは引張る際に使用する遮水シートの引張用冶具である。 This idea relates to a jig for pulling a water-impervious sheet, and in particular, a jig for pulling a water-impervious sheet used for pulling or pulling a huge and heavy wide-width water-impervious sheet. Is.

従来、遮水シートは、護岸に敷設して降雨や波等による決壊を防止し、或いは廃棄物処分場等の底部に敷設して、石炭灰等廃棄物から流れ出る有害物質が地下に浸透することを防ぐために用いるものである。 Conventionally, the impermeable sheet is laid on the revetment to prevent it from breaking due to rainfall or waves, or it is laid at the bottom of a waste disposal site, etc., and harmful substances flowing out of waste such as coal ash permeate underground. It is used to prevent.

そして、遮水シート敷設工事の規模の大きさによっては、当然、縦・横が巨大な遮水シートが必要となり、この大型の遮水シートを敷設する際には、護岸が現場となる場合は、海や川等の水上から移動して敷設しており、そのため、図４に示すように、Ｍ型形状のＭフック（素材は、遮水シートと同一）を遮水シートに融着して取りつけ、Ｍフックの内袋に差し込んだ鋼製かんざしを介してロープを船等の動力を利用して引き寄せあるいは引張って遮水シートを移動させていた。 And, depending on the scale of the impermeable sheet laying work, naturally, a huge vertical and horizontal impermeable sheet is required, and when laying this large impermeable sheet, if the shore protection is the site. , M-shaped M hook (the material is the same as the impermeable sheet) is fused to the impermeable sheet as shown in Fig. 4 because it is laid by moving from the water such as the sea or river. The impermeable sheet was moved by pulling or pulling the rope using the power of a ship or the like through a steel umbrella inserted into the inner bag of the M hook.

しかし、上記のＭ型形状のＭフックでは敷設作業中に破断した場合、作業現場で該Ｍフックと遮水シートを融着する作業は、水中では不可能であるという欠点があった。 However, when the above-mentioned M-shaped M hook breaks during the laying work, there is a drawback that the work of fusing the M hook and the impermeable sheet at the work site is impossible in water.

そして、上記の巨大な遮水シートを用いて敷設作業をする際に、引き寄せあるいは引張る際の負荷に耐え得る引張用の治具が必要となり、その手段として巨大で重量化した遮水シートの複数箇所を挟み込んで一時固定できる遮水シートの引張用治具を開発することを考えた。 Then, when laying work using the above-mentioned huge impermeable sheet, a jig for pulling that can withstand the load at the time of pulling or pulling is required, and as a means for that, a plurality of huge and heavy impermeable sheets are required. We considered developing a jig for pulling the impermeable sheet that can be temporarily fixed by sandwiching the part.

また、巨大で重量化している遮水シートを引張れば、シートが伸び、それによりシートの厚みが薄くなるため、挟み込みを固定すれば挟む力が弱くなるが、例えシートの厚みが薄くなっても挟む力が弱くならない構造の引張用冶具を検討することが必要となった。 Also, if you pull the huge and heavy water-impervious sheet, the sheet will stretch and the thickness of the sheet will be thinned, so if you fix the pinch, the pinching force will be weakened, but even if the thickness of the sheet is thinned. It was necessary to study a tensile jig with a structure that does not weaken the pinching force.

そこでこの考案は、巨大で重量化している広幅の遮水シートの厚が薄くなっても挟む力が弱くならない構造の遮水シートの引張用治具を開発・提供するものである。 Therefore, the present invention is to develop and provide a jig for pulling a water-impervious sheet having a structure in which the pinching force is not weakened even if the thickness of the huge and heavy wide water-impervious sheet becomes thin.

この考案の遮水シートの引張用冶具は、支軸を介して鋏状に交差する一対の挟持体を設け、これら挟持体の先端側には、それぞれが相対向する対向板を設け、これら対向板の内面側には、遮水シートを挟持する帯状の起立片を、挟持体と直交する方向に、それぞれ所定間隔を保ち複数本設け、且つ、これら起立板は、交互に噛み合うように両対向板に植設し、前記挟持体のそれぞれ後端側には、ロープを装着する穴をそれぞれ設けると共に、前記挟持体の支軸と、穴との中間部付近には、前記挟持体にそれぞれ内側に向けてブラケットを設け、これらブラケットにそれぞれ長穴を設け、これら両長穴に緩み留めボルトを設けたことを特徴とする。 The water-impervious sheet tensioning tool of the present invention is provided with a pair of holding bodies that intersect in a scissors shape via a support shaft, and on the tip side of these holding bodies, facing plates that face each other are provided and face each other. On the inner surface side of the plate, a plurality of strip-shaped upright pieces for sandwiching the impermeable sheet are provided in a direction orthogonal to the sandwiching body at predetermined intervals, and these upright plates are opposed to each other so as to alternately mesh with each other. It is planted on a plate, and holes for mounting ropes are provided on the rear end side of each of the holding bodies, and inside the holding body near the intermediate portion between the support shaft of the holding body and the holes. It is characterized in that brackets are provided toward the surface, elongated holes are provided in each of these brackets, and loosening bolts are provided in both elongated holes.

この考案によると、支軸（２）を支点とし、作用点は遮水シート（Ｘ）を挟み易いよう対向板（３ａ）、（３ｂ）に起立板（４ａ）、（４ｂ）を交互に配置し、力点である２つの穴（５ａ）、（５ｂ）部分を引っ張れば、作用点である対向板（３ａ）、（３ｂ）の挟む力が発生する。そして、張力が増せば挟む力もより増す構造となっており、引張りを解除すれば、挟む力も解除され、引張用治具が遮水シート（Ｘ）から離れる状態となり、これを防止するため力点に緩み留めボルト（８）を設けており、該緩み留めボルト（８）を締め込むことが可能である。 According to this invention, the support shaft (2) is used as a fulcrum, and the standing plates (4a) and (4b) are alternately arranged on the facing plates (3a) and (3b) so that the water-impervious sheet (X) can be easily sandwiched. Then, if the two holes (5a) and (5b), which are the points of effort, are pulled, the force of sandwiching the opposing plates (3a) and (3b), which are the points of action, is generated. The structure is such that as the tension increases, the pinching force also increases. When the tension is released, the pinching force is also released, and the tensioning jig is separated from the water-impervious sheet (X). A loosening bolt (8) is provided, and the loosening bolt (8) can be tightened.

さらに、この考案の引張用冶具を用い、遮水シート（Ｘ）の端を相対向する複数の起立板（４ａ）、（４ｂ）で挟み、牽引して移動するため、対向板（３ａ）、（３ｂ）に設けた起立板（４ａ）、（４ｂ）の摩擦力により外れることなく、仮に万一外れた箇所を発見しても、水中で再度挟むことが出来る等の極めて有益なる等の効果を有する。 Further, using the tensioning jig of the present invention, the ends of the impermeable sheet (X) are sandwiched between a plurality of standing plates (4a) and (4b) facing each other, and the facing plates (3a), It does not come off due to the frictional force of the upright plates (4a) and (4b) provided in (3b), and even if a detached part is found, it can be pinched again in water, which is extremely beneficial. Has.

この考案の一実施例を示し、（Ａ）は、一部を切り欠いた状態の側面図であり、（Ｂ）は、一部を切り欠いた状態の底面図である。An embodiment of the present invention is shown, where (A) is a side view in a state where a part is cut out, and (B) is a bottom view in a state where a part is cut out. この考案の一実施例を示す一部を切り欠いた斜視図である。It is the perspective view which cut out a part which shows one Example of this invention. この考案に使用する遮水シートを挟んだ状態の一実施例を示す一部を切り欠いた斜視図であり、（Ｂ）は、この考案に使用する遮水シートの一実施例を示す一部を切り欠いた断面図であり、（Ｃ）は、この考案に使用する遮水シートの他の実施例を示す一部を切り欠いた断面図である。It is a partially cutaway perspective view which shows an Example of the state which sandwiched the impermeable sheet used for this invention, and (B) is a part which shows one Example of the impermeable sheet used for this invention. It is a cross-sectional view which cut out a part, and (C) is the cross-sectional view which showed the other Example of the impermeable sheet used in this invention. 従来例を示し、（Ａ）は、一部を切り欠いた状態の平面図であり、（Ｂ）は、一部を切り欠いた側面図である。A conventional example is shown, (A) is a plan view of a state in which a part is cut out, and (B) is a side view in which a part is cut out.

以下、この考案の好適な実施の形態について説明するが、この考案においては以下の記述に限定されるものではなく、この考案の要旨を逸脱しない範囲においては適宜変更可能である。 Hereinafter, preferred embodiments of the present invention will be described, but the present invention is not limited to the following description, and can be appropriately changed as long as the gist of the present invention is not deviated.

そこでこの考案の一実施例を図１、図２、図３に基づいて詳細に説明すると、支軸（２）を介して鋏状に交差する一対の挟持体（１ａ）、（１ｂ）を設け、これら挟持体の先端側には、それぞれが相対向する対向板（３ａ）、（３ｂ）を設け、これら対向板（３ａ）、（３ｂ）の内面側には、遮水シート（Ｘ）を挟持する帯状の起立片（４ａ）、（４ｂ）を、挟持体（１ａ）、（１ｂ）と直交する方向に、それぞれ所定間隔を保ち複数本設け、且つ、これら起立板（４ａ）、（４ｂ）は、交互に噛み合うように両対向板（３ａ）、（３ｂ）に植設し、前記挟持体（１ａ）、（１ｂ）のそれぞれ後端側には、ロープ（Ｙａ）、（Ｙｂ）を装着する穴（５ａ）、（５ｂ）をそれぞれ設けると共に、前記挟持体（１ａ）、（１ｂ）の支軸（２）と、穴（５ａ）、（５ｂ）との中間部付近には、前記挟持体（１ａ）、（１ｂ）にそれぞれ内側に向けてブラケット（６ａ）、（６ｂ）を設け、これらブラケット（６ａ）、（６ｂ）にそれぞれ長穴（７ａ）、（７ｂ）を設け、これら両長穴（７ａ）、（７ｂ）に緩み留めボルト（８）を設けたことを特徴とする遮水シートの引張用冶具から構成される。 Therefore, an embodiment of the present invention will be described in detail with reference to FIGS. 1, 2 and 3, and a pair of holding bodies (1a) and (1b) intersecting with each other in a scissors shape via the support shaft (2) are provided. On the tip side of these sandwiching bodies, facing plates (3a) and (3b) facing each other are provided, and on the inner surface side of these facing plates (3a) and (3b), a water-impervious sheet (X) is provided. A plurality of strip-shaped standing pieces (4a) and (4b) to be sandwiched are provided in directions orthogonal to the sandwiching bodies (1a) and (1b) at predetermined intervals, and these standing plates (4a) and (4b) are provided. ) Are planted on both opposing plates (3a) and (3b) so as to alternately mesh with each other, and ropes (Ya) and (Yb) are attached to the rear end sides of the sandwiching bodies (1a) and (1b), respectively. The holes (5a) and (5b) to be mounted are provided, respectively, and the support shafts (2) of the sandwiching bodies (1a) and (1b) are provided near the intermediate portions between the holes (5a) and (5b). Brackets (6a) and (6b) are provided on the sandwiching bodies (1a) and (1b) toward the inside, and elongated holes (7a) and (7b) are provided on the brackets (6a) and (6b), respectively. It is composed of a jig for pulling a water-impervious sheet, characterized in that both elongated holes (7a) and (7b) are provided with loosening bolts (8).

なお、前記対向板（３ａ）、（３ｂ）の素材は、鉄板であり、前記起立板（４ａ）、（４ｂ）の素材は、平鋼材であり、交互に、即ち、相対する対向板（３ａ）、（３ｂ）に千鳥状に配置し、遮水シート（Ｘ）を挟み易いように構成されている。 The materials of the facing plates (3a) and (3b) are iron plates, and the materials of the standing plates (4a) and (4b) are flat steel materials, which are alternately, that is, facing facing plates (3a). ) And (3b) are arranged in a staggered pattern so that the impermeable sheet (X) can be easily sandwiched.

また、前記各起立板（４ａ）、（４ｂ）は、挟み込む遮水シートの素材、構造によって形状、間隔を変更し、相対向する起立板（４ａ）、（４ｂ）が互いに接触しないように余裕を持って設けるよう構成した遮水シートの引張用冶具である。 Further, the shapes and intervals of the standing plates (4a) and (4b) are changed depending on the material and structure of the water-impervious sheet to be sandwiched, so that the standing plates (4a) and (4b) facing each other do not come into contact with each other. It is a jig for pulling a water-impervious sheet that is configured to be provided by holding.

なお、ロープは、遮水シート（Ｘ）を牽引するメインロープ（Ｙ）と、挟持体（１ａ）、（１ｂ）の端部に設けた穴（５ａ）、（５ｂ）に通して結止したロープ（Ｙａ）、（Ｙｂ）から構成され、これらのロープはメインロープ（Ｙ）を介して牽引手段に結束するものである。 The rope was fastened through the main rope (Y) for pulling the impermeable sheet (X) and the holes (5a) and (5b) provided at the ends of the holding bodies (1a) and (1b). It is composed of ropes (Ya) and (Yb), and these ropes are bound to the towing means via the main rope (Y).

また、前記の遮水シートの素材、構造の一実施例を図３（Ｂ）に基づいて説明すると、超軟質ＰＶＣ樹脂を素材とした遮水シート材（Ｘａ）１枚と、ポリエステル繊維を素材とした保護マット材（Ｘｂ）２枚からなり、該遮水シート材（Ｘａ）の上・下両面をそれぞれ該保護マット材（Ｘｂ）で覆い、３層一体化した遮水シート（Ｘ）である。 Further, an example of the material and structure of the water-impervious sheet will be described with reference to FIG. 3 (B). One water-impervious sheet material (Xa) made of ultra-soft PVC resin and polyester fiber are used as materials. The upper and lower surfaces of the water-impervious sheet material (Xa) are covered with the protective mat material (Xb), respectively, and the three-layer integrated water-impervious sheet (X) is used. is there.

さらに、前記の遮水シートの他の実施例を図３（Ｃ）に基づいて説明すると、遮水シート材（Ｘａ）２枚と、保護マット材（Ｘｂ）を３枚用いる。先ず、１枚の遮水シート材（Ｘａ）の上・下両面にそれぞれ保護マット材（Ｘｂ）を２枚用いて覆い、３層一体化した遮水シートを積層し、次に、保護マット材（Ｘｂ）に遮水シート材（Ｘａ）で覆い、さらに該遮水シート材（Ｘａ）を保護マット材（Ｘｂ）で覆い、５層一体化した遮水シート（Ｘ´）に形成したものである。 Further, another embodiment of the water-impervious sheet will be described with reference to FIG. 3C. Two water-impervious sheet materials (Xa) and three protective mat materials (Xb) are used. First, two protective mat materials (Xb) are used on both the upper and lower surfaces of one water-impervious sheet material (Xa), and three layers of water-impervious sheets are laminated, and then the protective mat material is laminated. (Xb) is covered with a water-impervious sheet material (Xa), and the water-impervious sheet material (Xa) is further covered with a protective matte material (Xb) to form a five-layer integrated water-impervious sheet (X'). is there.

また、前記Ｍフックの強度は、約１，０００ｋｇ程度であるが、本考案の引張用冶具で遮水シートを引張った実験をした際、張力１，２００ｋｇ以上でも遮水シートから外れなかった。 Further, the strength of the M hook is about 1,000 kg, but when the experiment of pulling the impermeable sheet with the tensioning jig of the present invention was carried out, the impermeable sheet did not come off even if the tension was 1,200 kg or more.

この考案の遮水シートの引張用冶具の技術を確立し、実施することにより産業上の利用可能性を有する。 By establishing and implementing the technique of the jig for pulling the impermeable sheet of this invention, it has industrial applicability.

１ａ，１ｂ挟持体
２支軸
３ａ，３ｂ対向板
４ａ，４ｂ起立板
５ａ，５ｂ穴
６ａ，６ｂブラケット
７ａ、７ｂ長穴
８緩み留めボルト
Ｘ遮水シート
Ｘ´ 遮水シート
Ｘａ遮水シート材
Ｘｂ保護マット材
Ｙメインロープ
Ｙａ、Ｙｂロープ 1a, 1b Holding body 2 Support shaft 3a, 3b Opposing plate 4a, 4b Standing plate 5a, 5b Hole 6a, 6b Bracket 7a, 7b Long hole 8 Loosening bolt X Water-blocking sheet X'Water-blocking sheet Xa Water-blocking sheet material Xb Protective mat material Y Main rope Ya, Yb rope

Claims

A pair of sandwiching bodies (1a) and (1b) that intersect in a scissors shape via a support shaft (2) are provided.
Facing plates (3a) and (3b) facing each other are provided on the tip end side of these sandwiches.
On the inner surface side of the facing plates (3a) and (3b), strip-shaped upright pieces (4a) and (4b) that sandwich the impermeable sheet (XorX') are orthogonal to the sandwiching bodies (1a) and (1b). Provide multiple lines at predetermined intervals in each direction.
Moreover, these standing plates (4a) and (4b) are mutually opposed plates (3a) so as to mesh with each other.
Planted in (3b)
Holes (5a) and (5b) for mounting the ropes (Ya) and (Yb) are provided on the rear end sides of the sandwiching bodies (1a) and (1b), respectively.
In the vicinity of the intermediate portion between the support shafts (2) of the holding bodies (1a) and (1b) and the holes (5a) and (5b), the holding bodies (1a) and (1b) are directed inward, respectively. Brackets (6a) and (6b) are provided,
Slotted holes (7a) and (7b) are provided in these brackets (6a) and (6b), respectively.
A jig for pulling a water-impervious sheet, characterized in that loosening bolts (8) are provided in both elongated holes (7a) and (7b).