JP2004037154A

JP2004037154A - Finishing stake system

Info

Publication number: JP2004037154A
Application number: JP2002191968A
Authority: JP
Inventors: Takio Takahashi; 高橋　滝雄
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-07-01
Filing date: 2002-07-01
Publication date: 2004-02-05

Abstract

<P>PROBLEM TO BE SOLVED: To provide a finishing stake system which can be used repeatedly while exhibiting a long lifetime and can be used readily even on a hard ground and in which a register mark can be positioned readily with respect to a pile and accurate positioning work is ensured through fine adjustment. <P>SOLUTION: The finishing stake system comprises a pile member 10 formed into a straight rod which can be driven into the ground surface by any one material of metal or resin, a tubular section 21 being fitted to the outer circumference of the pile member 10 movably in the longitudinal direction thereof, a substantially rectangular planar register mark part 31 fixed to the tubular section 21 with one linear end crossing the axis thereof substantially perpendicularly and movable in the longitudinal direction of the pile member 10 through the tubular section 21, and an adjusting screw 23 screwed into the tubular section 21 and securing the register mark part 31 at a specified position in the longitudinal direction of the pile member 10 by fastening the tubular section 21 to the specified position in the longitudinal direction of the pile member 10. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は、土木構造物や建築物を構築する際に、主要部分の中心線、高さ、掘削位置等を示すために使用される丁張装置に関する。
【０００２】
【従来の技術】
従来の丁張装置は、木製の杭と、その杭の長さ方向に直交した状態で、杭に釘打ちして固定される略長方形の木製板材からなるトンボとを備えている。かかる従来の丁張装置を土木構造物や建築物等の構築物の施工現場に敷設するには、まず、施工現場の地面の複数箇所に杭を木槌等で垂直に打ち込む。なお、杭を打ち込む施工現場の地面は水平面である場合もあり、法面のように傾斜面である場合もある。次に、その杭と直交するよう、即ち、水平方向に延びるよう、トンボを杭に釘打ちする。そして、丁張装置のトンボ間に水糸を張って掛け渡し、構築物の芯出しや高さ位置設定等の位置出し作業を行う。
【０００３】
【発明が解決しようとする課題】
しかし、従来の丁針装置は、木製の杭及びトンボより構成されるため、再使用は困難で、使い捨てである。また、木製の杭を固い地盤に打ち込むことは困難であり、木槌等による過度な打撃力により、杭が破損することも考えられる。更に、構築物の施工現場において必要な位置出し作業をするためには、トンボを杭に釘打ちする際に、構築物に応じて正確な高さ位置に位置決めして釘打ちする必要がある。杭にトンボを釘打ちすると同時にこのような位置決め作業を行うことは非常に面倒かつ煩雑であり、高さ位置に誤差が生じ易い。加えて、トンボは杭に対して直交した水平方向に固定する必要があるが、やはり、杭にトンボを釘打ちすると同時にこのような角度位置決め作業を行うことは非常に面倒かつ煩雑であり、トンボが杭に対して傾斜した状態で固定されることもある。この場合、正確な位置出し作業を行うことができない。
【０００４】
そこで、本発明は、繰り返し使用が可能で長寿命であり、固い地盤の地面でも容易に使用することができ、かつ、杭に対するトンボ部の位置決めを容易に行うことができると共に、その微調整も可能として、正確な位置出し作業を可能とする丁張装置の提供を課題とする。
【０００５】
【課題を解決するための手段】
請求項１に係る丁張装置は、金属及び硬質樹脂のいずれかの材料により地面に打込み自在な直線棒状に形成された杭部材と、少なくとも一端を直線状とした略平板状をなし、その直線状の一端を前記杭部材に対して略直交させた状態で前記杭部材の長さ方向に移動自在に取付けられるトンボ部と、前記トンボ部を前記杭部材の長さ方向の所定位置に固定自在な高さ調整手段とを備える。
【０００６】
したがって、請求項１に係る丁張装置は、杭部材が金属製または硬質樹脂製であるため、大きな打撃力にも十分に耐え、固い地盤の地面にも大きな打撃力で杭部材を打ち込むことができる。また、トンボ部が杭部材の長さ方向に移動自在に取付けられるため、杭を施工現場の地面に打ち込んだ後、トンボ部の高さ調整を容易に行うことができる。このとき、トンボ部の直線状の一端が杭部材と略直交するため、水糸を利用して正確な位置出し作業を行うことができる。
【０００７】
請求項２に係る丁張装置は、金属及び硬質樹脂のいずれかの材料により地面に打込み自在な直線棒状に形成された杭部材と、前記杭部材の外周に嵌め合わされて前記杭部材の長さ方向に移動自在な筒状をなす筒部と、略矩形平板状をなし、その直線状の一端を前記筒部の軸心に対して略直交させた状態で前記筒部に取付けられ、前記筒部を介して前記杭部材の長さ方向に移動自在なトンボ部材と、前記筒部に螺入され、前記筒部を前記杭部材の長さ方向の所定位置に締結して固定することにより、前記トンボ部を前記杭部材の長さ方向の所定位置に固定自在な高さ調整ネジとを備える。
【０００８】
なお、前記トンボ部の直線状の一端は、通常、トンボ部の上端により構成されるが、これをトンボ部の下端により構成したり、トンボ部材のその他の位置にかかる機能の端部を設けたりすることも可能である。
【０００９】
したがって、請求項２に係る丁張装置は、杭部材が金属製または硬質樹脂製であるため、大きな打撃力にも十分に耐え、固い地盤の地面にも大きな打撃力で杭部材を打ち込むことができる。また、トンボ部が筒部を介して杭部材の長さ方向に移動自在に取付けられるため、杭を施工現場の地面に打ち込んだ後、筒部を介してトンボ部の高さ調整を容易に行うことができる。更に、高さ調整ネジにより筒部を杭部材に締結して固定することにより、筒部を介してトンボ部を所望の高さ位置に固定することができる。このとき、トンボ部の直線状の一端が杭部材と略直交するため、水糸を利用して正確な位置出し作業を行うことができる。
【００１０】
請求項３に係る丁張装置は、請求項２の構成において、更に、前記トンボ部の前記杭部材への取付け状態において、前記トンボ部の厚さ方向一側面における上側部に固着され、前記トンボ部の上端から上方に突出する突出部分を有する固着部と、前記トンボ部の厚さ方向一側面から徐々に離間して傾斜するよう前記固着部の下端から前記トンボ部の下側へと延び、前記固着部の突出部分に掛止した水糸の先端部を挟み込んで掛止自在な糸留部とを含む水糸掛止部材を備える。
【００１１】
したがって、請求項３に係る丁張装置は、請求項２の作用に加え、丁張装置のトンボ部間に水糸を張って掛け渡し、構築物の芯出しや高さ位置設定等の位置出し作業を行うときに、水糸の端部の根元部分を水糸掛止部材の固着部の突出部分に巻付けた後、その先端部分を糸留部に挟み込んで容易かつ迅速に掛止することができる。
【００１２】
請求項４に係る丁張装置は、請求項２または３の構成において、更に、前記トンボ部を前記杭部材の長さ方向を含む平面に沿って傾動自在とする傾動手段と、前記トンボ部を前記杭部材の長さ方向を含む平面に沿って所定の傾き角度に固定自在な傾き調整手段とを備える。
【００１３】
したがって、請求項４に係る丁張装置は、請求項２または３の作用に加えて、傾動手段及び傾き角固定手段によりトンボ部を杭部材に対して直交した状態や所望角度傾斜した状態等、任意の角度位置に傾動させて固定することができる。
【００１４】
請求項５に係る丁張装置は、請求項４の構成において、前記傾動手段及び前記傾き調整手段が、前記トンボ部に挿通されると共に前記筒部側に螺入自在な傾き調整ネジにより構成され、前記傾き調整ネジを前記トンボ部に挿通すると共に前記筒部側に螺入して前記トンボ部を前記筒部側に押付けた締結状態で、前記トンボ部を前記杭部材の長さ方向を含む平面に沿った所定の傾動角度に固定し、前記傾き調整ネジを前記締結状態から緩めた非締結状態で、前記トンボ部を前記筒部側に対して前記杭部材の長さ方向を含む平面に沿って傾動自在とした。
【００１５】
したがって、請求項５に係る丁張装置は、請求項４の作用に加えて、傾き調整ネジを締結状態から緩めた非締結状態で、トンボ部を筒部側に対して杭部材の長さ方向を含む平面に沿って所望の傾き角度に傾動させた後、傾き調整ネジを締結状態とすることにより、トンボ部を杭部材の長さ方向を含む平面に沿った所望の傾動角度に固定することができる。
【００１６】
請求項６に係る丁張装置は、請求項２乃至５のいずれかの構成において、前記杭部材が、その外周面の周方向に円周状に延びる刻設部をその長さ方向に所定間隔で多数形成し、前記筒部を前記高さ調整ネジにより前記杭部材に固定するときに、前記筒部の下端内周縁または上端内周縁の一部を前記刻設部により係止して、前記筒部を前記杭部材の長さ方向所定位置に位置決めして固定するようにした。
【００１７】
したがって、請求項６に係る丁張装置は、請求項項２乃至５のいずれかの作用に加え、杭部材の刻設部を目安としてトンボ部の高さ調整を段階的に行うことができる。例えば、筒部の下端または上端を杭部材の所望高さ位置の刻設部に合致させることにより、刻設部の設置間隔毎に、トンボ部の高さを変更することができる。
【００１８】
このとき、トンボ部の上端を筒部の上端に合致させた状態でトンボ部を筒部側に取付けたり、トンボ部の下端を筒部の下端に合致させた状態でトンボ部を筒部側に取付けたり、トンボ部の上下寸法を筒部の上下寸法と同一とすると共にトンボ部の上下両端を筒部の上下両端に合致させた状態でトンボ部を筒部に取付けたりすることが好ましい。こうすれば、筒部の上端または下端を杭部材の刻設部に合致させると、自動的にトンボ部の上端または下端が杭部材の刻設部に合致することになり、筒部の上端または下端を目安として、トンボ部の高さ調整をより簡単に行うことができる。
【００１９】
更に、請求項６に係る丁張装置は、高さ調整ネジにより筒部を杭部材に締結して固定するときに、高さ調整ネジを前記締結状態から若干緩め、筒部の下端内周縁または上端内周縁の前記一部を杭部材の外周面に接触させた状態にすることにより、筒部を上下に移動してゆくと、筒部の下端内周縁または上端内周縁の一部が前記杭部材の刻設部に自動的に嵌り込んで係止される。そして、この状態から、高さ調整ネジを締結状態へと締め付けることにより、筒部を杭部材その位置に位置決めして固定することができ、筒部を介してトンボ部を所望の高さ位置に固定することができる。
【００２０】
請求項７に係る丁張装置は、請求項２乃至６のいずれかの構成において、更に、前記トンボ部が、前記直線状の一端と平行に貫通形成された長孔状の左右調整溝を有し、前記傾き調整ネジを前記トンボ部の前記左右調整溝に挿通すると共に前記筒部側に螺入して前記トンボ部を前記筒部側に押付けた締結状態で、前記トンボ部を前記杭部材の長さ方向を含む平面に沿った所定の傾動角度に固定すると共に、前記トンボ部を前記左右調整溝の長さ方向における所定位置に固定し、前記傾き調整ネジを前記締結状態から緩めた非締結状態で、前記トンボ部を前記筒部側に対して前記杭部材の長さ方向を含む平面に沿って傾動自在とすると共に、前記トンボ部を前記左右調整溝の長さ方向に移動自在とした。
【００２１】
したがって、請求項７に係る丁張装置は、請求項２乃至５のいずれかの作用に加え、傾き調整ネジを締結状態から緩めた非締結状態で、トンボ部を筒部側に対して左右調整溝の長さ方向における所定位置に移動させた後、傾き調整ネジを締結状態とすることにより、トンボ部を（杭部材の長さ方向と交差或いは略直交する）左右方向における所定位置に固定することができる。
【００２２】
【発明の実施の形態】
以下、本発明の実施の形態を説明する。なお、各実施の形態を通じ、同一の部材、要素または部分には同一の符号を付して、その説明を省略する。
【００２３】
実施の形態１
図１は本発明の実施の形態１に係る丁張装置の全体を示す正面図である。図２は本発明の実施の形態１に係る丁張装置の全体を示す背面図である。図３は本発明の実施の形態１に係る丁張装置の要部を示す断面図である。図４は本発明の実施の形態１に係る丁張装置の要部を示す側面図である。
【００２４】
図１に示すように、実施の形態１に係る丁張装置は、杭部材１０を備えている。杭部材１０は、金属及び硬質樹脂のいずれかの材料により地面に打込み自在な直線棒状に形成されている。詳細には、杭部材１０は、断面円形の直線棒状をなす棒状部１１と、棒状部１１の長さ方向一端、即ち、使用時における上端に一体的に固着された頭部１２と、棒状部１１の長さ方向下端から先鋭（テーパ状）となるよう下方に直線的に延びる先鋭部１３とを有している。好ましくは、杭部材１０は、鋼材等の金属材料により棒状部１１、頭部１２及び先鋭部１３を一体的に形成する。なお、杭部材１０を硬質樹脂により形成する場合、繊維強化プラスチック等、杭部材１０を地面に打ち込む際の打撃力に耐え得る材料を使用する。即ち、杭部材１０の材料としては、杭部材１０を地面に打ち込む際の打撃力に耐え得る材料から形成する限りにおいて、任意の金属材料または硬質樹脂材料を使用することができる。杭部材１０の前記棒状部１１の外周面には、周方向に円周状に延びる刻設部１１ａが、棒状部１１の長さ方向に所定間隔で多数形成されている。
【００２５】
図２に示すように、丁張装置は、更に、筒部材２０及びトンボ部材３０を備えている。詳細には、筒部材２０は、筒部２１及び高さ調整ネジ２３を有している。筒部２１は、杭部材１０の外周に嵌め合わされて杭部材１０の長さ方向に移動自在な筒状をなす。具体的には、筒部２１は、杭部材１０の棒状部１１の断面に対応する円形断面の内周面を有する長さ方向両端（使用時における上下両端）を開口とした円筒状をなす。前記筒部２１の放射方向一側にはネジ孔２１ａが形成されている。そして、筒部２１のネジ孔２１ａに前記高さ調整ネジ２３が螺入され、図３に示すように、前記筒部２１を前記杭部材１０の長さ方向の所定位置に締結して固定自在となっている。なお、前記高さ調整ネジ２３は蝶ネジにより構成されているが、その他のネジにより構成することも可能である。また、図３中二点差線で示すように、高さ調整ネジ２３の頭部と筒部２１との間にワッシャ、高さ調整ネジ２３のネジ止め効果を向上する板状の介装部２２を介装してもよい。この介装部２２は筒部２１に溶接等により固着してもよいし、通常のワッシャのように分離した状態で介装してもよい。
【００２６】
一方、トンボ部材３０は、トンボ部３１と、介装部３２と、水糸掛止部材３３と、傾き調整ネジ３４とを有している。トンボ部３１は、略矩形平板状をなし、その直線状の一端である上端を前記筒部２１の軸心に対して略直交させた状態で前記筒部２１の外周面に取付けられる。具体的には、トンボ部３１は横長長方形板状をなすと共に、介装部３２はトンボ部３１よりも小さい平板状（方形板状、円形板状等）をなす。介装部３２は、前記筒部２１の放射方向他側（前記ネジ孔２１ａと反対側）に移動不能に溶接、接着等により固着される。そして、トンボ部３１は、介装部３２及び傾き調整ネジ３４を介して、前記筒部２１の放射方向他側に傾動自在に取付けられる。具体的には、トンボ部３１の左右及び上下の中央には挿通孔３１ａが貫通形成されている。また、介装部３２の中央（前記トンボ部３１の挿通孔３１ａに整合する位置）にはネジ孔３２ａが形成されている。そして、傾き調整ネジ３４をトンボ部３１の挿通孔３１ａに挿通すると共に、筒部２１側に位置する介装部３２のネジ孔３２ａに螺入自在となっている。これにより、傾き調整ネジ３４を介装部３２のネジ孔３２ａに完全に螺入してトンボ部３１を筒部２１側の介装部３２に押付けた状締結状態で、前記トンボ部３１を前記杭部材１０の長さ方向を含む平面に沿った所定の傾動角度に固定するようになっている。一方、傾き調整ネジ３４を前記締結状態から緩めた非締結状態で、トンボ部３１を筒部２１側の介装部３２に対して前記杭部材１０の長さ方向を含む平面に沿って所望の角度に傾動できるようになっている。
【００２７】
上記のように、トンボ部３１は、傾き調整ネジ３４により筒部２１に取付けられ、前記筒部２１を介して杭部材１０の長さ方向に移動自在に取付けられる。そして、高さ調整ネジ２３により筒部２１を杭部材１０の長さ方向の所定位置（所定高さ位置）に固定することにより、トンボ部３１を杭部材１０の長さ方向の所定位置（所定高さ位置）に固定自在となっている。また、トンボ部３１は、通常は、傾き調整ネジ３４による締結状態において、杭部材１０または筒部２１の軸心に略直交した状態で固定される。しかし、トンボ部３１は、施工現場の水平面に対して平行な状態（左右方向または水平方向に延びた状態）で固定する必要があるため、杭部材１０を水平面に対して垂直に打込めず、杭部材１０が水平面に対して傾斜する場合、傾き調整ネジ３４によりその傾斜角を相殺する方向に傾動させた状態で固定する必要がある。ここで、筒部材２０の筒部２１並びにトンボ部材３０のトンボ部３１及び介装部３２は、杭部材１０と同様、金属材料または硬質樹脂材料により形成することが好ましいが、杭部材１０のように打撃を受けるわけではないためその他の材料により形成することも可能である。また、前記傾き調整ネジ３４は蝶ネジにより構成されているが、その他のネジにより構成することも可能である。なお、傾き調整ネジ３４は、実施の形態１において、トンボ部３１を杭部材１０の長さ方向を含む平面に沿って傾動自在とする傾動手段と、トンボ部３１を杭部材１０の長さ方向を含む平面に沿って所定の傾き角度に固定自在な傾き角固定手段とを構成する。
【００２８】
更に、実施の形態１では、筒部２１を高さ調整ネジ２３により杭部材１０に固定するときに、筒部２１の下端内周縁または上端内周縁の一部を前記棒状部１１の刻設部１１ａにより係止して、筒部２１を前記杭部材１０の棒状部１１の長さ方向所定位置に位置決めして固定するようになっている。具体的には、図３に示すように、高さ調整ネジ２３を締結状態とすると、筒部２１の放射方向他側（ネジ孔２１ａと反対側）の内周面が筒部材１０の棒状部１１の対応する側の外周面に加圧状態で接触し、筒部２１が棒上部１１に固定される。このとき、例えば、筒部２１の上端を棒状部１１の所望の刻設部１１ａに合致させて位置決めし、この状態で高さ調整ネジ２３を締結状態とすることにより、筒部２１の放射方向他側における上端内周縁部が棒状部１１の刻設部１１ａ内に若干進入して係止され、筒部２１が棒状部１１の当該刻設部１１ａの高さ位置に位置決めして固定される。
【００２９】
前記水糸掛止部材３３は、固着部３３ａと、糸留部３３ｂとを有している。トンボ部３１を筒部２１を介して杭部材１０へ取付けた状態において、固着部３３ａは、トンボ部３１の厚さ方向一側面（筒部２１と反対側の面、即ち、正面）における上側部に固着されている。固着部３３ａは、トンボ部３１の上端から上方に突出する突出部分を有する。糸留部３３ｂは、トンボ部３１の厚さ方向一側面（正面）から徐々に離間して傾斜するよう固着部３３ａの下端からトンボ部３１の下側へと延びている。そして、糸留部３３ｂは、固着部３３ａの突出部分に掛止した水糸Ｙの先端部を挟み込んで掛止自在となっている。なお、実施の形態１では、水糸掛止部材３３は、釘の上側部をトンボ部３１に溶接、接着等により固着し、下側部をトンボ部３１から離間するよう若干屈曲させて構成されている。無論、水糸掛止部材３は、任意の材料からなる釘以外の部材により構成することができる。
【００３０】
次に上記のように構成した実施の形態１に係る丁張装置の作用及び効果について説明する。
実施の形態１に係る丁張装置は、杭部材１０が金属製または硬質樹脂製であるため、大きな打撃力にも十分に耐え、固い地盤の地面にも大きな打撃力で杭部材１０を打ち込むことができる。また、トンボ部３１が筒部２１を介して杭部材１０の長さ方向に移動自在に取付けられるため、杭を施工現場の地面に打ち込んだ後、筒部２１を介してトンボ部３１の高さ調整を容易に行うことができる。更に、高さ調整ネジ２３により筒部２１を杭部材１０に締結して固定することにより、筒部２１を介してトンボ部３１を所望の高さ位置に固定することができる。このとき、トンボ部３１の直線状の一端としての上端が杭部材１０と略直交するため、水糸Ｙを利用して正確な位置出し作業を行うことができる。
【００３１】
また、丁張装置のトンボ部３１間に水糸Ｙを張って掛け渡し、構築物の芯出しや高さ位置設定等の位置出し作業を行うときに、水糸Ｙの端部の根元部分を水糸掛止部材３３の固着部３３ａの突出部分に巻付けた後、その先端部分を糸留部３３ｂに挟み込んで容易かつ迅速に掛止することができる。その結果、水糸Ｙの掛け渡し作業が簡単かつ迅速になり、位置出し作業を迅速に行うことができる。
【００３２】
更に、傾動手段及び傾き角固定手段としての傾き調整ネジ３４を締結状態から緩めた非締結状態で、トンボ部３１を筒部２１側の介装部３２に対して杭部材１０の長さ方向を含む平面に沿って所望の傾き角度に傾動させた後、傾き調整ネジ３４を締結状態とすることにより、トンボ部３１を杭部材１０の長さ方向を含む平面に沿った所望の傾動角度に固定することができ、これにより、トンボ部３１を杭部材１０に対して直交した状態や所望角度傾斜した状態等、任意の角度位置に傾動させて固定することができる。その結果、杭部材１０を地面に対して正確に垂直に打ち込むことができず、多少斜めに打ち込んだ場合でも、トンボ部３１の傾斜角度を調整して、トンボ部３１を正確に水平（水平面に対して平行）にすることができ、正確な位置出し作業を行うことができる。
【００３３】
そして、杭部材１０の棒状部１１の刻設部１１ａを目安としてトンボ部３１の高さ調整を段階的に行うことができる。例えば、筒部２１の下端または上端を杭部材１０の所望高さ位置の刻設部１１ａに合致させることにより、刻設部１１ａの設置間隔毎に、トンボ部３１の高さを変更することができる。
【００３４】
このとき、トンボ部３１の上下寸法を筒部２１の上下寸法より小さくして、トンボ部３１の上端を筒部２１の上端に合致させた状態で、若しくは、トンボ部３１の下端を筒部２１の下端に合致させた状態でトンボ部３１を筒部２１側の介装部３２に取付けたり、または、図１〜４に示すように、トンボ部３１の上下寸法を筒部２１の上下寸法と同一とすると共にトンボ部３１の上下両端を筒部２１の上下両端に合致させた状態でトンボ部３１を筒部２１に取付けたりすることが好ましい。こうすれば、筒部２１の上端または下端を杭部材１０の刻設部１１ａに合致させると、自動的にトンボ部３１の上端または下端が杭部材１０の刻設部１１ａに合致することになり、筒部２１の上端または下端を目安として、トンボ部３１の高さ調整をより簡単に行うことができる。
【００３５】
更に、実施の形態１では、高さ調整ネジ２３により筒部２１を杭部材１０に締結して固定するときに、高さ調整ネジ２３を前記締結状態から若干緩め、筒部２１の下端内周縁または上端内周縁の前記一部を杭部材１０の棒状部１１の外周面に接触させた状態にすることにより、筒部２１を上下に移動してゆくと、筒部２１の下端内周縁または上端内周縁の一部が前記棒状部１１の刻設部１１ａに自動的に嵌り込んで係止される。そして、この状態から、高さ調整ネジ２３を締結状態へと締め付けることにより、筒部２３を杭部材１０のその位置に位置決めして固定することができ、筒部２１を介してトンボ部３１を所望の高さ位置に固定することができる。その結果、トンボ部３１の段階的な高さ調整を、より簡単かつ確実に行うことができる。
【００３６】
実施の形態２
図５は本発明の実施の形態２に係る丁張装置の全体を示す正面図である。
実施の形態２に係る丁張装置は、トンボ部材４０のトンボ部４１の構成が実施の形態１と異なる。その他の構成は実施の形態１と同様である。具体的には、図５に示すように、前記トンボ部材４０のトンボ部４１は、実施の形態１のトンボ部３１と同様の横長長方形板状をなしている。一方、トンボ部４１は、その直線状の一端としての上端または下端と平行に貫通形成された長孔状の左右調整溝４１ａを有している。そして、前記傾き調整ネジ３４をトンボ部４１の左右調整溝４１ａに挿通すると共に筒部２１側の介装部３２に螺入してトンボ部４１を筒部２１側の介装部３２に押付けた締結状態で、トンボ部４１を杭部材１０の長さ方向を含む平面に沿った所定の傾動角度に固定すると共に、トンボ部４１を左右調整溝４１ａの長さ方向における所定位置に固定するようになっている。一方、傾き調整ネジ３４を前記締結状態から緩めた非締結状態で、トンボ部４１を筒部２１側の介装部３２に対して杭部材１０の長さ方向を含む平面に沿って傾動自在とすると共に、トンボ部４１を左右調整溝４１ａの長さ方向に移動自在となっている。
【００３７】
したがって、実施の形態２に係る丁張装置は、傾き調整ネジ３４を締結状態から緩めた非締結状態で、トンボ部４１を左右調整溝４１ａに沿って所望の位置に移動させた後、傾き調整ネジ３４を締結状態とすることにより、トンボ部４１を筒部２１側の介装部３２に対して杭部材１０の長さ方向と交差或いは略直交する方向における所望位置に固定することができる。その結果、複数の丁張装置のトンボ部間に水糸を張り渡して通り（直線状の見通し線）を出すときに、トンボ部を左右に移動して位置調整することにより、トンボ部において水糸を固着する部位（例えば水糸掛止部材３３の固着部３３ａ）の位置を水糸の通る位置に正確に合致させることができる。
【００３８】
ところで、上記各実施の形態では、トンボ部３１，４１を筒部２１を介して杭部材１０に上下への移動自在に取付けたが、本発明に係る丁張装置は、筒部２１以外の構成を使用してトンボ部３１，４１を杭部材１０に上下への移動自在に取付けてもよい。また、本発明に係る丁張装置は、トンボ部３１，４１を、通常、杭部材１０の長さ方向と略直交するよう取付けるが、上記のように杭部材１０を地面に垂直に打ち込めなかった場合等において、（前記傾き調整手段を使用すると否とを問わず）トンボ部３１，４１を杭部材１０の長さ方向と略直交せず、傾斜した状態で取付ける場合もある。更に、上記各実施の形態では、トンボ部３１，４１は、傾き調整ネジ３４を介装部３２に螺入することで傾動自在に筒部２１に取付けられるが、本発明に係る丁張装置は、傾き調整ネジ３４を筒部２１に直接螺入することでトンボ部３１，４１を傾動自在に筒部２１に取付けてもよい。ここで、前記高さ調整ネジ２３は、棒状部１１に対する筒部２１の締結機能を発揮するため、筒部２１の厚さ方向に貫通して螺入され、その先端を棒状部１１の外周面に当接させているが、この場合における傾き調整ネジ３４は、筒部２１に対するトンボ部３１，４１の締結機能を発揮する一方で、棒状部１１に対する筒部２１の上下移動を妨げないよう、筒部２１の厚さ方向の途中まで螺入する構成とする必要がある。
【００３９】
【発明の効果】
請求項１に係る丁張装置は、上記のように構成したため、繰り返し使用が可能で長寿命であり、固い地盤の地面でも容易に使用することができ、かつ、杭に対するトンボ部の位置決めを容易に行うことができると共に、その微調整も可能として、正確な位置出し作業を可能とする。
【００４０】
請求項２に係る丁張装置は、上記のように構成したため、簡単な構成でありながら、繰り返し使用が可能で長寿命であり、固い地盤の地面でも容易に使用することができ、かつ、杭に対するトンボ部の位置決めを容易に行うことができると共に、その微調整も可能として、正確な位置出し作業を可能とする。
【００４１】
請求項３に係る丁張装置は、上記のように構成したため、請求項１または２の効果に加え、水糸の掛け渡し作業が簡単かつ迅速になり、位置出し作業を迅速に行うことができる。
【００４２】
請求項４に係る丁張装置は、上記のように構成したため、請求項２または３の効果に加え、杭部材を地面に対して正確に垂直に打ち込むことができず、多少斜めに打ち込んだ場合でも、トンボ部の傾斜角度を調整して、トンボ部を正確に水平（水平面に対して平行）にすることができ、正確な位置出し作業を行うことができる。
【００４３】
請求項５に係る丁張装置は、上記のように構成したため、請求項４の効果に加え、傾き調整ネジという簡単な構成により傾動手段及び傾き調整手段を構成することができる。
【００４４】
請求項６に係る丁張装置は、上記のように構成したため、請求項２乃至５のいずれかの効果に加え、トンボ部の段階的な高さ調整を、より簡単かつ確実に行うことができる。
【００４５】
請求項７に係る丁張装置は、上記のように構成したため、請求項２乃至６のいずれかの効果に加え、複数の丁張装置のトンボ部間に水糸を張り渡して通り（直線状の見通し線）を出すときに、トンボ部を左右に移動して位置調整することにより、トンボ部において水糸を固着する部位（例えば請求項３の水糸掛止部材の固着部）の位置を水糸の通る位置に正確に合致させることができる。
【図面の簡単な説明】
【図１】図１は本発明の実施の形態１に係る丁張装置の全体を示す正面図である。
【図２】図２は本発明の実施の形態１に係る丁張装置の全体を示す背面図である。
【図３】図３は本発明の実施の形態１に係る丁張装置の要部を示す断面図である。
【図４】図４は本発明の実施の形態１に係る丁張装置の要部を示す側面図である。
【図５】図５は本発明の実施の形態２に係る丁張装置の全体を示す正面図である。
【符号の説明】
１０：杭部材、１１ａ：刻設部、２１：筒部
２３：高さ調整ネジ（高さ調整手段）
３１，４１：トンボ部
３３：水糸掛止部材、３３ａ：固着部、３３ｂ：糸留部
３４：傾き調整ネジ（傾動手段及び傾き調整手段）、４１ａ：左右調整溝[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a tensioning device used for indicating a centerline, a height, an excavation position, and the like of a main portion when constructing a civil engineering structure or a building.
[0002]
[Prior art]
A conventional tensioning device is provided with a wooden pile and a register mark made of a substantially rectangular wooden plate that is fixed to the pile by nailing in a state perpendicular to the length direction of the pile. In order to lay such a conventional tensioning device on a construction site of a structure such as a civil engineering structure or a building, first, a pile is driven vertically into a plurality of places on the ground of the construction site with a mallet or the like. The ground at the construction site into which the pile is driven may be a horizontal plane, or may be a slope such as a slope. Next, the register mark is nailed to the pile so as to be orthogonal to the pile, that is, to extend in the horizontal direction. Then, a water thread is stretched across the register marks of the staking device to perform positioning operations such as centering the structure and setting the height position.
[0003]
[Problems to be solved by the invention]
However, the conventional staple device is composed of a wooden stake and a register mark, so that it is difficult to reuse and is disposable. Further, it is difficult to drive a wooden pile into hard ground, and the pile may be damaged by an excessive impact force caused by a mallet or the like. Furthermore, in order to perform necessary positioning work at a construction site of a building, when nailing a dragonfly to a pile, it is necessary to position the nail at an accurate height position according to the building and nail it. Performing such a positioning operation at the same time as nailing a register mark on a pile is very troublesome and troublesome, and an error easily occurs in the height position. In addition, it is necessary to fix the register mark in the horizontal direction perpendicular to the pile.However, it is very troublesome and troublesome to perform such angle positioning work while nailing the register mark on the pile, May be fixed in an inclined state with respect to the pile. In this case, an accurate positioning operation cannot be performed.
[0004]
Therefore, the present invention can be repeatedly used, has a long service life, can be easily used even on hard ground, and can easily position the register mark portion with respect to the pile, and can also perform fine adjustment thereof. It is an object of the present invention to provide a tensioning device that enables an accurate positioning operation.
[0005]
[Means for Solving the Problems]
The tensioning device according to claim 1 has a pile member formed into a straight rod shape that can be driven into the ground by using any one of a metal and a hard resin, and a substantially flat plate shape having at least one end straight. A registration mark portion movably mounted in the length direction of the pile member with one end of the shape substantially perpendicular to the pile member, and the registration mark portion is fixable at a predetermined position in the length direction of the pile member. Height adjusting means.
[0006]
Therefore, in the tensioning device according to claim 1, since the pile member is made of metal or hard resin, the pile member can sufficiently withstand a large impact force, and can drive the pile member with a large impact force even on a hard ground. it can. Further, since the register mark portion is movably attached in the length direction of the pile member, the height of the register mark portion can be easily adjusted after the pile is driven into the ground at the construction site. At this time, since the linear end of the register mark portion is substantially orthogonal to the pile member, an accurate positioning operation can be performed using the water thread.
[0007]
The tensioning device according to claim 2 is a pile member formed into a straight rod shape that can be driven into the ground by using any one of a metal and a hard resin, and a length of the pile member that is fitted to an outer periphery of the pile member. A tubular portion having a tubular shape movable in a direction, and a substantially rectangular flat plate shape, the straight end of which is attached to the tubular portion in a state of being substantially perpendicular to the axis of the tubular portion; A registration mark member movable in the length direction of the pile member through a portion, and screwed into the cylinder portion, and fastening and fixing the cylinder portion to a predetermined position in the length direction of the pile member, A height adjusting screw for fixing the register mark portion at a predetermined position in a length direction of the pile member;
[0008]
In addition, the linear end of the register mark portion is usually constituted by the upper end of the register mark portion, but it may be constituted by the lower end of the register mark portion, or may be provided with an end portion having functions relating to other positions of the register mark member. It is also possible.
[0009]
Therefore, in the tensioning device according to claim 2, since the pile member is made of metal or hard resin, the pile member can sufficiently withstand a large impact force, and can drive the pile member with a large impact force even on a hard ground. it can. Further, since the register mark portion is movably mounted in the length direction of the pile member via the cylindrical portion, the height of the register mark portion is easily adjusted via the cylindrical portion after the pile is driven into the ground at the construction site. be able to. Furthermore, by fastening and fixing the tubular portion to the pile member with the height adjusting screw, the register mark portion can be fixed at a desired height position via the tubular portion. At this time, since the linear end of the register mark portion is substantially orthogonal to the pile member, an accurate positioning operation can be performed using the water thread.
[0010]
According to a third aspect of the present invention, in the tensioning device according to the second aspect, in a state where the register mark portion is attached to the pile member, the register mark portion is fixed to an upper portion on one side in a thickness direction of the register mark portion. A fixing portion having a protruding portion protruding upward from an upper end of the portion, extending downward from the lower end of the fixing portion so as to be gradually separated and inclined from one side in the thickness direction of the register mark portion, A water thread catching member including a thread retaining portion that is capable of sandwiching a tip of the water thread hooked on the protruding portion of the fixing portion so as to be hookable.
[0011]
Therefore, in addition to the operation of claim 2, the tensioning device according to claim 3 stretches and stretches a water thread between the register mark portions of the tensioning device, and performs positioning work such as centering the structure and setting the height position. When performing, after winding the root portion of the end of the water thread around the protruding portion of the fixing portion of the water line hooking member, it is possible to easily and quickly hook the front end portion by sandwiching it in the yarn retaining portion. it can.
[0012]
The tensioning device according to a fourth aspect of the present invention is the tensioning device according to the second or third aspect, further comprising: a tilting means for tilting the register mark portion along a plane including a length direction of the pile member; And a tilt adjusting means that can be fixed at a predetermined tilt angle along a plane including the length direction of the pile member.
[0013]
Therefore, the tensioning device according to claim 4 has, in addition to the operation of claim 2 or 3, a state in which the register mark portion is orthogonal to the pile member by the tilting means and the tilt angle fixing means, or a state in which the register mark portion is tilted at a desired angle. It can be tilted and fixed at any angular position.
[0014]
In the tensioning device according to a fifth aspect, in the configuration of the fourth aspect, the tilting means and the tilt adjusting means are configured by tilt adjusting screws that are inserted into the register mark portion and that can be screwed into the cylinder portion side. In a fastening state in which the inclination adjusting screw is inserted into the register mark portion and screwed into the cylinder portion side to press the register mark portion against the cylinder portion, the register mark portion includes the length direction of the pile member. In a non-fastened state in which the tilt adjustment screw is loosened from the fastened state and fixed at a predetermined tilt angle along a plane, the register mark portion is on a plane including the length direction of the pile member with respect to the cylindrical portion side. It can be tilted along.
[0015]
Therefore, in the tensioning device according to the fifth aspect, in addition to the operation of the fourth aspect, in a non-fastened state in which the inclination adjusting screw is loosened from the fastened state, the register mark portion is moved in the length direction of the pile member with respect to the cylindrical portion. After tilting to the desired tilt angle along the plane including the stake, by fixing the tilt adjusting screw, the register mark portion is fixed at the desired tilt angle along the plane including the length direction of the pile member. Can be.
[0016]
According to a sixth aspect of the present invention, in the tensioning device according to any one of the second to fifth aspects, the pile member is provided with engraved portions extending circumferentially in the circumferential direction of the outer peripheral surface thereof at predetermined intervals in the length direction. When the tubular portion is fixed to the pile member by the height adjusting screw, a part of the lower end inner peripheral edge or the upper end inner peripheral edge of the cylindrical portion is locked by the engraved portion, The tubular portion is positioned and fixed at a predetermined position in the length direction of the pile member.
[0017]
Therefore, in the tensioning device according to claim 6, in addition to the effect of any one of claims 2 to 5, the height of the register mark portion can be adjusted stepwise using the carved portion of the pile member as a guide. For example, by matching the lower end or the upper end of the cylindrical portion to the engraved portion at the desired height position of the pile member, the height of the register mark portion can be changed at every installation interval of the engraved portion.
[0018]
At this time, the register mark part is attached to the cylinder side with the upper end of the register mark part aligned with the upper end of the cylindrical part, or the register mark part is aligned with the cylindrical part side with the lower end of the register mark part aligned with the lower end of the cylindrical part. It is preferable that the register mark part is attached to the cylindrical part with the upper and lower dimensions of the register part being the same as the upper and lower dimensions of the cylindrical part and the upper and lower ends of the register mark part being aligned with the upper and lower ends of the cylindrical part. In this case, when the upper end or the lower end of the cylindrical portion matches the engraved portion of the pile member, the upper end or the lower end of the register mark automatically matches the engraved portion of the pile member. Using the lower end as a guide, the height of the register mark portion can be adjusted more easily.
[0019]
Furthermore, the tensioning device according to claim 6, when fastening the tube portion to the pile member with a height adjustment screw and fixing the same, the height adjustment screw is slightly loosened from the fastening state, and the lower end inner peripheral edge of the cylinder portion or By moving the cylindrical portion up and down by bringing the part of the upper end inner peripheral edge into contact with the outer peripheral surface of the pile member, a part of the lower end inner peripheral edge or the upper end inner peripheral edge of the cylindrical portion becomes part of the pile. It is automatically fitted into the cut portion of the member and locked. Then, from this state, by tightening the height adjusting screw to the fastening state, the tubular portion can be positioned and fixed at the position of the pile member, and the register mark portion can be positioned at a desired height position via the tubular portion. Can be fixed.
[0020]
According to a tenth aspect of the present invention, in the tensioning device according to any one of the second to sixth aspects, the register mark portion further has a long hole-shaped left / right adjustment groove formed to penetrate in parallel with the linear end. In a fastening state in which the inclination adjusting screw is inserted into the right and left adjustment grooves of the register mark portion and screwed into the cylindrical portion side to press the register mark portion against the tubular portion side, the register mark portion is connected to the pile member. A fixed angle of inclination along a plane including the length direction is fixed, the register mark portion is fixed at a predetermined position in the length direction of the left and right adjustment groove, and the inclination adjustment screw is loosened from the fastened state. In the fastened state, the register mark portion can be freely tilted with respect to the cylinder portion along a plane including the length direction of the pile member, and the register mark portion can be freely moved in the length direction of the left and right adjustment grooves. did.
[0021]
Therefore, in the tensioning device according to claim 7, in addition to the effect of any one of claims 2 to 5, the registration mark portion can be adjusted left and right with respect to the cylindrical portion in a non-fastened state in which the tilt adjusting screw is loosened from the fastened state. After being moved to a predetermined position in the length direction of the groove, the inclination adjusting screw is tightened to fix the register mark portion at a predetermined position in the left-right direction (intersecting or substantially perpendicular to the length direction of the pile member). be able to.
[0022]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described. Note that, throughout the embodiments, the same members, elements, or portions are denoted by the same reference numerals, and description thereof will be omitted.
[0023]
Embodiment 1
FIG. 1 is a front view showing the entire tensioning device according to Embodiment 1 of the present invention. FIG. 2 is a rear view showing the entire tensioning device according to Embodiment 1 of the present invention. FIG. 3 is a cross-sectional view showing a main part of the tensioning device according to Embodiment 1 of the present invention. FIG. 4 is a side view showing a main part of the tensioning device according to Embodiment 1 of the present invention.
[0024]
As shown in FIG. 1, the tensioning device according to the first embodiment includes a pile member 10. The pile member 10 is formed of a material such as a metal or a hard resin into a straight rod shape that can be driven into the ground. In detail, the pile member 10 includes a rod-shaped part 11 having a linear rod shape having a circular cross section, a head 12 integrally fixed to one longitudinal end of the rod-shaped part 11, that is, an upper end in use, and a rod-shaped part. 11 has a sharpened portion 13 that extends linearly downward so as to be sharpened (tapered) from the lower end in the length direction. Preferably, in the pile member 10, the rod-shaped portion 11, the head 12, and the sharpened portion 13 are integrally formed of a metal material such as steel. When the pile member 10 is formed of a hard resin, a material that can withstand a striking force when the pile member 10 is driven into the ground, such as fiber-reinforced plastic, is used. That is, as the material of the pile member 10, any metal material or hard resin material can be used as long as the pile member 10 is formed from a material that can withstand a striking force when the pile member 10 is driven into the ground. On the outer peripheral surface of the rod portion 11 of the pile member 10, a large number of engraved portions 11 a extending circumferentially in the circumferential direction are formed at predetermined intervals in the length direction of the rod portion 11.
[0025]
As shown in FIG. 2, the tensioning device further includes a tubular member 20 and a register mark member 30. Specifically, the tubular member 20 has a tubular portion 21 and a height adjusting screw 23. The tubular portion 21 is fitted to the outer periphery of the pile member 10 and has a tubular shape that is movable in the length direction of the pile member 10. Specifically, the cylindrical portion 21 has a cylindrical shape having an opening at both ends in the longitudinal direction (upper and lower ends in use) having an inner peripheral surface having a circular cross section corresponding to the cross section of the rod-shaped portion 11 of the pile member 10. A screw hole 21a is formed on one side of the cylindrical portion 21 in the radial direction. Then, the height adjusting screw 23 is screwed into the screw hole 21a of the cylindrical portion 21, and the cylindrical portion 21 is fastened and fixed at a predetermined position in the length direction of the pile member 10, as shown in FIG. It has become. The height adjusting screw 23 is constituted by a thumb screw, but may be constituted by other screws. Further, as shown by a two-dot line in FIG. 3, a washer is provided between the head of the height adjusting screw 23 and the cylindrical portion 21, and a plate-shaped interposition portion 22 for improving the screwing effect of the height adjusting screw 23. May be interposed. The interposition part 22 may be fixed to the cylinder part 21 by welding or the like, or may be interposed in a separated state like a normal washer.
[0026]
On the other hand, the register mark member 30 includes a register mark portion 31, an interposition portion 32, a water thread retaining member 33, and a tilt adjusting screw. The register mark portion 31 has a substantially rectangular flat plate shape, and is attached to the outer peripheral surface of the tubular portion 21 with its upper end, which is one end of a straight line, substantially perpendicular to the axis of the tubular portion 21. Specifically, the register mark portion 31 has a horizontally long rectangular plate shape, and the interposition portion 32 has a flat plate shape (square plate shape, circular plate shape, or the like) smaller than the register mark portion 31. The interposition part 32 is fixed to the other side in the radial direction of the cylindrical part 21 (the side opposite to the screw hole 21a) by welding, bonding, or the like so as not to move. The register mark portion 31 is attached to the other side in the radial direction of the cylindrical portion 21 via the interposition portion 32 and the tilt adjusting screw 34 so as to be tiltable. Specifically, through holes 31a are formed through the center of the register mark portion 31 in the left, right, up, and down directions. A screw hole 32a is formed in the center of the interposition portion 32 (at a position matching the insertion hole 31a of the register mark portion 31). The inclination adjusting screw 34 is inserted into the insertion hole 31 a of the register mark portion 31, and can be freely screwed into the screw hole 32 a of the interposition portion 32 located on the cylindrical portion 21 side. Thus, in the state where the registration mark portion 31 is completely screwed into the screw hole 32a of the insertion portion 32 and the registration mark portion 31 is pressed against the insertion portion 32 of the cylindrical portion 21, the registration mark portion 31 is fixed. The pile member 10 is fixed at a predetermined tilt angle along a plane including the length direction. On the other hand, in a non-fastened state in which the inclination adjusting screw 34 is loosened from the fastened state, the register mark portion 31 is moved along a plane including the length direction of the pile member 10 with respect to the interposing portion 32 on the cylindrical portion 21 side. It can be tilted to an angle.
[0027]
As described above, the register mark portion 31 is attached to the tubular portion 21 by the inclination adjusting screw 34, and is attached via the tubular portion 21 so as to be movable in the length direction of the pile member 10. By fixing the cylindrical portion 21 to a predetermined position (predetermined height position) in the length direction of the pile member 10 with the height adjustment screw 23, the register mark portion 31 is fixed to a predetermined position (predetermined position) in the length direction of the pile member 10. (Height position). Further, the register mark portion 31 is normally fixed in a state of being substantially orthogonal to the axis of the pile member 10 or the cylindrical portion 21 in a fastening state with the inclination adjusting screw 34. However, since the register mark portion 31 needs to be fixed in a state parallel to the horizontal plane of the construction site (a state extending in the left-right direction or the horizontal direction), the pile member 10 cannot be driven vertically to the horizontal plane, When the pile member 10 is inclined with respect to the horizontal plane, it is necessary to fix the pile member 10 in a state where the pile member 10 is tilted by a tilt adjusting screw 34 in a direction to offset the tilt angle. Here, the tubular portion 21 of the tubular member 20 and the register mark portion 31 and the interposition portion 32 of the register mark member 30 are preferably formed of a metal material or a hard resin material, similarly to the pile member 10. It is not possible to be hit by any other material, and it is also possible to form it with other materials. Further, the tilt adjusting screw 34 is formed by a thumb screw, but may be formed by another screw. In the first embodiment, the tilt adjusting screw 34 is provided with a tilting unit that allows the register mark portion 31 to be tiltable along a plane including the length direction of the pile member 10, and the register mark portion 31 in the length direction of the pile member 10. And a tilt angle fixing means that can be fixed at a predetermined tilt angle along a plane including.
[0028]
Further, in the first embodiment, when the cylindrical portion 21 is fixed to the pile member 10 by the height adjusting screw 23, a part of the lower end inner peripheral edge or the upper end inner peripheral edge of the cylindrical portion 21 is partially cut into the bar-shaped portion 11. 11 a, the cylindrical portion 21 is positioned and fixed at a predetermined position in the length direction of the rod portion 11 of the pile member 10. Specifically, as shown in FIG. 3, when the height adjusting screw 23 is in the tightened state, the inner peripheral surface of the other side in the radial direction of the cylindrical portion 21 (the side opposite to the screw hole 21 a) is a rod-shaped portion of the cylindrical member 10. The cylindrical portion 21 is fixed to the rod upper portion 11 by contact with the outer peripheral surface on the corresponding side of the rod 11 under pressure. At this time, for example, the upper end of the cylindrical portion 21 is positioned so as to match the desired engraved portion 11a of the rod portion 11, and in this state, the height adjusting screw 23 is tightened, so that the radial direction of the cylindrical portion 21 is changed. The inner peripheral edge of the upper end on the other side slightly enters and is locked in the engraved portion 11a of the rod portion 11, and the cylindrical portion 21 is positioned and fixed at the height position of the engraved portion 11a of the rod portion 11. .
[0029]
The water thread retaining member 33 has a fixing portion 33a and a thread retaining portion 33b. In a state where the register mark portion 31 is attached to the pile member 10 via the tubular portion 21, the fixing portion 33 a is an upper portion on one side in the thickness direction of the register mark portion 31 (the surface opposite to the tubular portion 21, that is, the front surface). It is fixed to. The fixing portion 33a has a protruding portion that protrudes upward from the upper end of the register mark portion 31. The thread retaining portion 33b extends from the lower end of the fixing portion 33a to the lower side of the register mark portion 31 so as to be gradually separated and inclined from one side surface (front surface) in the thickness direction of the register mark portion 31. Further, the yarn retaining portion 33b can be hooked by sandwiching the distal end of the water yarn Y hooked on the protruding portion of the fixing portion 33a. In the first embodiment, the water line hooking member 33 is formed by fixing the upper portion of the nail to the register mark portion 31 by welding, bonding, or the like, and slightly bending the lower portion to be separated from the register mark portion 31. ing. Needless to say, the waterline hooking member 3 can be constituted by a member other than a nail made of an arbitrary material.
[0030]
Next, the operation and effect of the tensioning device according to the first embodiment configured as described above will be described.
Since the pile member 10 is made of metal or hard resin, the tensioning device according to the first embodiment sufficiently withstands a large impact force, and drives the pile member 10 with a large impact force even on hard ground. Can be. Further, since the register mark portion 31 is movably attached in the length direction of the pile member 10 via the cylindrical portion 21, the height of the register mark portion 31 is determined via the cylindrical portion 21 after the pile is driven into the ground at the construction site. Adjustment can be easily performed. Further, the register portion 31 can be fixed at a desired height position via the tubular portion 21 by fastening and fixing the tubular portion 21 to the pile member 10 with the height adjusting screw 23. At this time, since the upper end as a linear end of the register mark portion 31 is substantially orthogonal to the pile member 10, an accurate positioning operation can be performed using the water thread Y.
[0031]
Further, when the water thread Y is stretched and wound between the register marks 31 of the tensioning device, and when performing positioning work such as centering the structure and setting the height position, the root portion of the end of the water thread Y is watered. After being wound around the protruding portion of the fixing portion 33a of the yarn hooking member 33, the front end portion can be sandwiched between the yarn anchoring portions 33b to be hooked easily and quickly. As a result, the operation of bridging the water thread Y becomes simple and quick, and the positioning operation can be performed quickly.
[0032]
Further, in a non-fastened state in which the tilt adjusting screw 34 as the tilting means and the tilt angle fixing means is loosened from the fastened state, the register mark portion 31 is moved in the length direction of the pile member 10 with respect to the interposed portion 32 on the cylinder portion 21 side. After being tilted to a desired tilt angle along the plane including the pile member 10, the registration mark portion 31 is fixed to a desired tilt angle along a plane including the length direction of the pile member 10 by tightening the tilt adjustment screw 34. Accordingly, the register mark portion 31 can be fixed by being tilted to an arbitrary angle position such as a state orthogonal to the pile member 10 or a state inclined at a desired angle. As a result, even if the pile member 10 cannot be driven accurately perpendicularly to the ground, and is driven slightly obliquely, the inclination angle of the register mark portion 31 is adjusted so that the register mark portion 31 is accurately horizontal (in a horizontal plane). (Parallel to the surface), and an accurate positioning operation can be performed.
[0033]
Then, the height adjustment of the register mark portion 31 can be performed stepwise by using the engraved portion 11a of the bar portion 11 of the pile member 10 as a guide. For example, by matching the lower end or the upper end of the cylindrical portion 21 with the engraved portion 11a at the desired height position of the pile member 10, the height of the register mark portion 31 can be changed at every installation interval of the engraved portion 11a. it can.
[0034]
At this time, the upper and lower dimensions of the register mark portion 31 are made smaller than the vertical size of the cylindrical portion 21 so that the upper end of the register mark portion 31 matches the upper end of the cylindrical portion 21 or the lower end of the register mark portion 31 is connected to the cylindrical portion 21. The registration mark portion 31 is attached to the interposition portion 32 on the cylinder portion 21 in a state where the registration mark portion is matched with the lower end of the cylinder portion 21, or as shown in FIGS. It is preferable that the register mark portion 31 is attached to the tubular portion 21 with the upper and lower ends of the register portion 31 being aligned with the upper and lower ends of the tubular portion 21. In this way, when the upper end or the lower end of the cylindrical portion 21 matches the engraved portion 11a of the pile member 10, the upper end or the lower end of the register mark portion 31 automatically matches the engraved portion 11a of the pile member 10. Using the upper end or lower end of the cylindrical portion 21 as a guide, the height of the register mark portion 31 can be adjusted more easily.
[0035]
Further, in the first embodiment, when the cylindrical portion 21 is fastened and fixed to the pile member 10 by the height adjusting screw 23, the height adjusting screw 23 is slightly loosened from the fastened state, and the lower end inner peripheral edge of the cylindrical portion 21 is loosened. Alternatively, when the cylindrical portion 21 is moved up and down by bringing the part of the inner peripheral edge of the upper end into contact with the outer peripheral surface of the rod portion 11 of the pile member 10, the inner peripheral edge or upper end of the lower end of the cylindrical portion 21 is moved. A part of the inner peripheral edge is automatically fitted into the engraved portion 11a of the rod-shaped portion 11 and locked. Then, from this state, by tightening the height adjusting screw 23 to the fastening state, the cylindrical portion 23 can be positioned and fixed at the position of the pile member 10, and the register mark portion 31 can be fixed via the cylindrical portion 21. It can be fixed at a desired height position. As a result, the stepwise height adjustment of the register mark portion 31 can be performed more easily and reliably.
[0036]
Embodiment 2
FIG. 5 is a front view showing the entire tensioning device according to Embodiment 2 of the present invention.
The tensioning device according to the second embodiment differs from the first embodiment in the configuration of the register mark portion 41 of the register mark member 40. Other configurations are the same as those of the first embodiment. Specifically, as shown in FIG. 5, the register mark portion 41 of the register mark member 40 has a horizontally long rectangular plate shape similar to the register mark portion 31 of the first embodiment. On the other hand, the register mark portion 41 has a long hole-shaped left and right adjustment groove 41a penetrating and formed in parallel with an upper end or a lower end as a linear end thereof. Then, the inclination adjusting screw 34 was inserted into the right and left adjusting groove 41a of the register mark portion 41 and screwed into the interposition portion 32 of the cylinder portion 21 to press the registration mark portion 41 against the interposition portion 32 of the cylinder portion 21. In the fastened state, the register mark portion 41 is fixed at a predetermined tilt angle along a plane including the length direction of the pile member 10 and the register mark portion 41 is fixed at a predetermined position in the length direction of the left and right adjustment groove 41a. Has become. On the other hand, in a non-fastened state in which the tilt adjusting screw 34 is loosened from the fastened state, the register mark portion 41 can be freely tilted along the plane including the length direction of the pile member 10 with respect to the interposed portion 32 on the cylindrical portion 21 side. At the same time, the register mark portion 41 is movable in the length direction of the left and right adjustment groove 41a.
[0037]
Therefore, the tensioning device according to the second embodiment moves the registration mark portion 41 to a desired position along the left / right adjustment groove 41a in the non-fastened state in which the tilt adjustment screw 34 is loosened from the fastened state, and then adjusts the tilt. By setting the screw 34 in the tightened state, the register mark portion 41 can be fixed to a desired position in a direction intersecting or substantially orthogonal to the length direction of the pile member 10 with respect to the interposition portion 32 on the cylindrical portion 21 side. As a result, when the water thread is stretched between the register marks of the plurality of tensioning devices to make a pass (straight line of sight), the register marks are moved to the left and right to adjust the position. The position of the portion where the yarn is fixed (for example, the fixing portion 33a of the water line hooking member 33) can be accurately matched with the position where the water line passes.
[0038]
By the way, in each of the above-described embodiments, the register mark portions 31 and 41 are movably attached to the pile member 10 up and down via the tubular portion 21. However, the tensioning device according to the present invention has a configuration other than the tubular portion 21. May be used to attach the register mark portions 31 and 41 to the pile member 10 so as to be vertically movable. Further, in the tensioning device according to the present invention, the register mark portions 31 and 41 are usually mounted so as to be substantially perpendicular to the length direction of the pile member 10, but the pile member 10 cannot be driven vertically to the ground as described above. In some cases, the register mark portions 31 and 41 (whether or not the tilt adjusting means is used) may be mounted in an inclined state without being substantially orthogonal to the length direction of the pile member 10. Furthermore, in each of the above-described embodiments, the register mark portions 31 and 41 are attached to the cylinder portion 21 so as to be tiltable by screwing the inclination adjusting screw 34 into the interposition portion 32. Alternatively, the registration marks 31 and 41 may be attached to the cylinder 21 so as to be tiltable by directly screwing the inclination adjusting screw 34 into the cylinder 21. Here, the height adjusting screw 23 is screwed through the cylindrical portion 21 in the thickness direction so as to exert a fastening function of the cylindrical portion 21 to the rod-shaped portion 11, and the tip thereof is formed on the outer peripheral surface of the rod-shaped portion 11. The tilt adjusting screw 34 in this case exerts a function of fastening the register marks 31 and 41 to the cylinder 21, but does not hinder the vertical movement of the cylinder 21 with respect to the rod 11. It is necessary to adopt a configuration in which the cylindrical portion 21 is screwed halfway in the thickness direction.
[0039]
【The invention's effect】
Since the tensioning device according to claim 1 is configured as described above, it can be repeatedly used, has a long service life, can be easily used even on hard ground, and easily positions the register mark portion with respect to the pile. And a fine adjustment thereof is also possible, thereby enabling an accurate positioning operation.
[0040]
Since the tensioning device according to claim 2 is configured as described above, it has a simple configuration, can be repeatedly used, has a long service life, can be easily used even on a hard ground, and has a pile. In addition to being able to easily position the register mark portion with respect to, fine adjustment thereof is also possible, thereby enabling accurate positioning work.
[0041]
Since the tensioning device according to claim 3 is configured as described above, in addition to the effects of claim 1 or 2, the operation of bridging the water thread becomes simple and quick, and the positioning operation can be performed quickly. .
[0042]
Since the tensioning device according to claim 4 is configured as described above, in addition to the effects of claim 2 or 3, in addition to the case where the pile member cannot be driven accurately perpendicularly to the ground, but is driven slightly obliquely. However, by adjusting the inclination angle of the register mark portion, the register mark portion can be accurately made horizontal (parallel to the horizontal plane), and a precise positioning operation can be performed.
[0043]
Since the tensioning device according to claim 5 is configured as described above, in addition to the effect of claim 4, the tilting means and the tilt adjusting means can be configured with a simple configuration of the tilt adjusting screw.
[0044]
Since the tensioning device according to claim 6 is configured as described above, in addition to the effect of any one of claims 2 to 5, the stepwise height adjustment of the register mark portion can be performed more easily and reliably. .
[0045]
Since the tensioning device according to claim 7 is configured as described above, in addition to the effect of any one of claims 2 to 6, in addition, a water thread is stretched between the register marks of the plurality of tensioning devices to pass through (linear shape). By moving the register mark part to the left and right to adjust the position, the position of the part where the water thread is fixed in the register mark part (for example, the fixing part of the water line hooking member of claim 3) is set. It is possible to accurately match the position where the water thread passes.
[Brief description of the drawings]
FIG. 1 is a front view showing the entire tensioning device according to Embodiment 1 of the present invention.
FIG. 2 is a rear view showing the entire tensioning device according to Embodiment 1 of the present invention.
FIG. 3 is a sectional view showing a main part of the tensioning device according to the first embodiment of the present invention.
FIG. 4 is a side view showing a main part of the tensioning device according to Embodiment 1 of the present invention.
FIG. 5 is a front view showing the entire tensioning device according to Embodiment 2 of the present invention.
[Explanation of symbols]
10: pile member, 11a: engraved part, 21: cylindrical part
23: Height adjustment screw (height adjustment means)
31, 41: Register mark part
33: water thread hooking member, 33a: fixing portion, 33b: thread retaining portion
34: tilt adjusting screw (tilting means and tilt adjusting means), 41a: left and right adjusting groove

Claims

A pile member formed into a straight bar shape that can be driven into the ground by using any material of metal and hard resin,
A register mark portion which has a substantially flat plate shape with at least one end being straight, and is movably attached in the length direction of the pile member in a state where the straight end is substantially orthogonal to the pile member,
A tensioning device comprising: a height adjusting means capable of fixing the register mark portion at a predetermined position in a length direction of the pile member.

A pile member formed into a straight bar shape that can be driven into the ground by using any material of metal and hard resin,
A tubular portion fitted to the outer periphery of the pile member and having a tubular shape movable in the length direction of the pile member;
It is formed in a substantially rectangular flat plate shape, and is attached to the tubular portion in a state where one end of a straight line thereof is substantially perpendicular to the axis of the tubular portion, and moves in the length direction of the pile member via the tubular portion. With a free register mark,
A height that is screwed into the tubular portion and fastens and fixes the tubular portion at a predetermined position in the length direction of the pile member, so that the register mark portion can be fixed to a predetermined position in the length direction of the pile member. A tensioning device, comprising: an adjusting screw.

Further, in a state where the register mark portion is attached to the pile member, a fixed portion fixed to an upper portion on one side in the thickness direction of the register mark portion and having a protruding portion projecting upward from an upper end of the register mark portion; The lower end of the fixing portion extends downward from the lower portion of the register portion so as to be gradually inclined and inclined from one side surface in the thickness direction of the register portion, and sandwiches the tip of the water thread hooked on the projecting portion of the fixing portion. 3. The tensioning device according to claim 2, further comprising a water thread catching member including a thread retaining portion that can be freely hooked.

Furthermore,
Tilting means for tilting the register mark portion along a plane including the length direction of the pile member,
4. The tensioning device according to claim 2, further comprising a tilt adjusting unit that is capable of fixing the register mark portion at a predetermined tilt angle along a plane including a length direction of the pile member. 5.

The tilting means and the tilt adjusting means are configured by a tilt adjusting screw that is inserted into the register mark portion and that can be screwed into the cylinder portion side,
A plane including the length direction of the pile member in a fastening state in which the inclination adjustment screw is inserted into the register mark portion and screwed into the cylindrical portion side to press the register mark portion against the cylindrical portion side. Fixed at a predetermined tilt angle along
In a non-fastened state in which the tilt adjustment screw is loosened from the fastened state, the register mark portion is tiltable along a plane including the length direction of the pile member with respect to the cylindrical portion side. Item 10. The tensioning device according to Item 4.

When the pile member is formed with a large number of engraved portions extending circumferentially in the circumferential direction of the outer peripheral surface thereof at predetermined intervals in the length direction, and fixing the cylindrical portion to the pile member by the height adjustment screw. A part of the inner peripheral edge at the lower end or the inner peripheral edge at the upper end of the cylindrical portion is locked by the engraved portion, and the cylindrical portion is positioned and fixed at a predetermined position in the length direction of the pile member. The tensioning device according to any one of claims 2 to 5, characterized in that:

Further, the register mark portion has a long hole-shaped left and right adjustment groove formed to penetrate in parallel with the linear end,
In the fastening state in which the inclination adjusting screw is inserted into the left and right adjusting grooves of the register mark portion and screwed into the cylindrical portion side and the register mark portion is pressed against the outer peripheral surface of the cylindrical portion side, the register mark portion is connected to the pile. Affixed at a predetermined tilt angle along a plane including the length direction of the member, and fixed at a predetermined position in the length direction of the left and right adjustment grooves of the register mark portion,
In a non-fastened state in which the tilt adjustment screw is loosened from the fastened state, the register mark portion is tiltable along a plane including a length direction of the pile member with respect to the cylinder portion side, and the register mark portion is The tensioning device according to any one of claims 2 to 6, wherein the right and left adjustment groove is movable in a length direction thereof.