JP4091381B2

JP4091381B2 - Pile remover

Info

Publication number: JP4091381B2
Application number: JP2002256924A
Authority: JP
Inventors: 信輔斎藤
Original assignee: 株式会社マルサ
Priority date: 2002-09-02
Filing date: 2002-09-02
Publication date: 2008-05-28
Anticipated expiration: 2022-09-02
Also published as: JP2004092258A

Description

【０００１】
【発明の属する技術分野】
本発明は、地面に打ち込まれた杭を抜くための杭抜き具に関するものである。
【０００２】
【従来の技術及び発明が解決しようとする課題】
例えば、建設現場などでは、周囲の安全確保を目的に囲いを設置するが、この囲いは、地面に打ち込まれた複数の杭によって支えられる構造となっている。
【０００３】
而して、この囲いは、工事完了後には杭と共に撤去する必要があるが、地面に深く打ち込まれた杭は簡単に抜け外れるものではないので、従来は重機を使って抜いていた。
【０００４】
しかし、杭抜きのためだけに重機を使用することは、コスト面を考慮するとあまり好ましくない。
【０００５】
本発明は、このような現状に鑑み、重機を用いることなく、人力だけで杭を簡単に抜くことのできる画期的な杭抜き具を提供するものである。
【０００６】
【課題を解決するための手段】
添付図面を参照して本発明の要旨を説明する。
【０００７】
長尺な操作体１の一端部に軸受部２を設け、この軸受部２を接地体３に軸着して操作体１が接地体３に対し起伏回動自在となるように構成し、この軸受部２の先端部に杭４を係止する杭係止部５を設けて、操作体１を前記接地体３に対し伏動すると前記軸受部２を支点にこの杭係止部５が起動するように構成し、この杭係止部５は、前記接地体３に対し前後方向に移動可能となるように構成して、地中に打ち込まれた杭４に前記杭係止部５を係止して前記操作体１を伏動すると、この杭係止部５が起動しながら前記接地体３に対し前方へ移動して略鉛直上方向へ移動し、これに応じて杭係止部５に係止した前記杭４が地中より略鉛直上方向へと引き抜かれるように構成したことを特徴とする杭抜き具に係るものである。
【０００８】
また、杭４の前後位置に係止し得る前側係止部５Ａと後側係止部５Ｂとを対向状態に設けた前記杭係止部５を、前記軸受部２に対し起伏回動自在に設けたことを特徴とする請求項１記載の杭抜き具に係るものである。
【０００９】
また、前記軸受部２を、前記接地体３に対しこの接地体３の前後方向に移動し得るように設けて、前記杭係止部５が接地体３に対して前後方向に移動する構成としたことを特徴とする請求項１，２のいずれか１項に記載の杭抜き具に係るものである。
【００１０】
また、前記操作体１を伏動させつつ前記杭係止部５を前方へ移動するように操作することで、この杭係止部５が起動しながら前方へ移動して杭係止部５が略鉛直上方向へ起動するように構成したことを特徴とする請求項３記載の杭抜き具に係るものである。
【００１１】
また、前記軸受部２の軸受孔２Ａを長孔形状に形成し、この長孔形状の軸受孔２Ａに、前記接地体３に設けた支軸６を軸支することで、軸受部２が接地体３に対して前後方向に移動し得るように構成したことを特徴とする請求項３，４のいずれか１項に記載の杭抜き具に係るものである。
【００１２】
また、長孔形状の前記軸受孔２Ａに対する前記支軸６の移動をガイドするガイド機構７を備えたことを特徴とする請求項５記載の杭抜き具に係るものである。
【００１３】
また、前記軸受部２にガイド軸７Ａを設け、このガイド軸７Ａにガイド体７Ｂを設けると共に、このガイド体７Ｂには前記支軸６を連結して、このガイド軸７Ａを支点にしてガイド体７Ｂを回動した際、このガイド体７Ｂに連結した前記支軸６が長孔形状の前記軸受孔２Ａに沿ってスライド移動する前記ガイド機構７を構成したことを特徴とする請求項６記載の杭抜き具に係るものである。
【００１４】
【発明の実施の形態】
好適と考える本発明の実施の形態（発明をどのように実施するか）を、図面に基づいてその作用効果を示して簡単に説明する。
【００１５】
接地体３を地面８に接地し、地面８に打ち込まれた杭４の、地表より露出している上方部位に前記杭係止部５を係止する。
【００１６】
そして、長尺な操作体１を伏動操作すると、軸受部２を支点としたテコ作用により杭４を係止した杭係止部５が大きな力で起動して杭４を持ち上げるが、この際、杭４は余程上方へ抜けない限りは傾かないから、接地体３に対して杭係止部５が起動しながら前方へ移動することになり、これにより杭係止部５は略鉛直上方向へ起動して、杭４が略鉛直上方向へと持ち上げられて地面８から引き抜かれる。
【００１７】
即ち、操作体１伏動時に、テコ作用の支点部となる軸受部２を枢支した接地体３が地面８に対して動くことなく、杭４を係止した杭係止部５が前方へと移動する構成であるから、しっかりと地面８に接地している接地体３に対して操作体１の伏動操作を非常に行い易く、且つ安定したテコ作用が発揮されることになり、しかも杭４を略鉛直上方向へと引き抜くから、杭４を地面８に対して斜め上方へ引き上げる場合のような余分な力を要せず、効率の良い杭抜き作業が行われることになる。
【００１８】
従って、コストのかかる重機を用いることなく、人力で杭４を簡単に引き抜くことが可能となる極めて実用性に秀れた画期的な杭抜き具となる。
【００１９】
また、例えば、杭４の前後位置に係止し得る前側係止部５Ａと後側係止部５Ｂとを対向状態に設けた前記杭係止部５を、前記軸受部２に対し起伏回動自在に設ければ、前側係止部５Ａと後側係止部５Ｂとで杭４を確固に係止でき、しかも、杭係止部５は起動しても軸受部２に対して傾くために、杭４に対する係止角度が変わらず係止状態が安定的に維持されることになるなど、一層実用的となる。
【００２０】
【実施例】
本発明の具体的な実施例について図面に基づいて説明する。
【００２１】
本実施例は、図１に示すように、長尺な操作体１の一端部に軸受部２を設け、この軸受部２を接地体３に軸着して操作体１が接地体３に対し起伏回動自在となるように構成し、この軸受部２の先端部に杭４を係止する杭係止部５を設けて、操作体１を前記接地体３に対し伏動すると前記軸受部２を支点にこの杭係止部５が起動するように構成している。
【００２２】
具体的に説明すると、本実施例の操作体１は長さ１.１ｍ程の角棒状の金属棒を採用している。
【００２３】
また、図２，図３に示すように、この操作体１の一端部に、略く字状を呈する二枚の金属製板材20の一端側を、横方向に間隔を置いた対設状態にして付設（溶接）し、この二枚の板材20の先端部が操作体１の長さ方向と略直交する側方（図面左側となる前方）に向かって突設する構成としている。本実施例では、この二枚の板材20を前記軸受部２としている。
【００２４】
また、この二枚の板材20で成る軸受部２には、中程に軸受孔２Ａを形成すると共に、両突出先端間に回動軸９を架設し、この回動軸９に前記杭係止部５を起伏回動自在に枢着している。
【００２５】
また、この軸受部２は、操作体１に対する側方への突出距離を１７ｃｍ程度としている。
【００２６】
ここで、杭係止部５について説明すると、杭４の対向前後位置に係止し得る前側係止部５Ａと後側係止部５Ｂとを対向状態に備えた平面視略コ字形の金属製部材により構成している。また、この前側係止部５Ａと後側係止部５Ｂの間隔を杭４の直径よりもやや大きくなるように構成し、更に、後側係止部５Ｂの後端部左右には、後方へ向けて軸着部５Ｃ（凸部）を一体的に突設し、この後部左右の軸着部５Ｃを前記軸受部２の先端に設けた回動軸９に軸着した構成としている。
【００２７】
本実施例の接地体３は、金属製の接地底板３Ａ上に二枚の金属製支持板３Ｂが所定間隔を置いた左右対設状態に立設した構成としている。
【００２８】
また、この接地体３の支持板３Ｂ間には支軸６を架設し、この支軸６を前記軸受部２の軸受孔２Ａに枢着することで前記操作体１が接地体３に対し起伏回動自在となるように構成すると共に、杭係止部５が起動せず地面８に接地した状態では、操作体１が立設状態となるように構成している（図１参照）。
【００２９】
また、前述した操作体１の長さと、この操作体１から側方へ突出する軸受部２の長さとの比率から、操作体１を伏動して杭係止部５を起動させると、テコ作用により杭係止部５は大きな力で上方へ持ち上げられるように構成している。
【００３０】
また、本実施例では、杭係止部５を前記接地体３に対し前後方向に突没移動可能となるように構成している。
【００３１】
具体的に説明すると、前記軸受部２を、前記接地体３に対し前後方向に移動し得るように構成して、前記杭係止部５が接地体３に対し前後方向に突没移動する構成としている。
【００３２】
更に説明すると、前記軸受部２の軸受孔２Ａを長孔形状に形成することで、この軸受部２が前記接地体３に設けた支軸６に対して前後方向に移動し得るように構成している。
【００３３】
また、本実施例では、長孔形状の前記軸受孔２Ａに対する前記支軸６の移動をガイドするガイド機構７を備えた構成としている。
【００３４】
具体的に説明すると、前記軸受部２にガイド軸７Ａを設け、このガイド軸７Ａにこのガイド体７Ｂを設けている。
【００３５】
ガイド軸７Ａは、図２，図３に示すように、軸受部２の中程の前記軸受孔２Ａの近傍に設け、この軸受部２の外側に突出するガイド軸７Ａの左右両端部に板状のガイド体７Ｂ（長円形状の金属板）の一端部を連結している。即ち、軸受部２の左右外側にガイド体７Ｂが配設する構成としている。
【００３６】
また、このガイド体７Ｂは、ガイド軸７Ａを支点に回動した際に、他端部が軸受孔２Ａを外側から閉塞するような配置となるように前記ガイド軸７Ａの位置を設定構成し、このガイド体７Ｂの他端部には軸受孔２Ａに対応させて合わせ孔20を形成している。
【００３７】
また、ここで、軸受孔２Ａについて更に説明すると、図３に示すように軸受部２を構成する前記板材20の中程であってガイド軸７Ａよりも図面上側の位置に、このガイド軸７Ａを中心とした円弧状の湾曲長孔を形成して構成し、ガイド軸７Ａを支点としてガイド体７Ｂが回動すると、このガイド体７Ｂ他端部の前記合わせ孔10がこの湾曲長孔状の軸受孔２Ａに沿って移動するように構成している。
【００３８】
また、前記接地体３に設けた支軸６は、前記合わせ孔20を介してガイド体７Ｂと連結し、且つ軸受孔２Ａに挿通した構成としている。即ち、ガイド軸７Ａを支点にしてガイド体７Ｂが回動すると、このガイド体７Ｂの他端部と連結されている支軸６はガイド体７Ｂの動きに合わせて湾曲状の軸受孔２Ａをスライド移動し、結果ガイド体７Ｂによって支軸６の移動はガイドされる構成としている。
【００３９】
図中符号11はガイド体７Ｂと接地体３の支持板３Ｂとの間に介在する座金、12は支軸６及びガイド軸７Ａを抜け止め状態とする抜け止めピン、13は軸受部２に設けたガイド軸７Ａ装着用の貫通孔、14はガイド体７Ｂに設けたガイド軸７Ａ装着用の取付孔、15は接地体３の支持板３Ｂに設けた支軸６装着用の軸穴である。
【００４０】
次に、本実施例を用いた杭４の引き抜き方法について説明する。
【００４１】
図４に示すように、地面８に接地体３を接地し、前記杭係止部５の前側係止部５Ａと後側係止部５Ｂの間に地中に打ち込まれた杭４を入れると、前側係止部５Ａと後側係止部５Ｂの間隔を杭４の直径よりも大きく形成してあるため、杭係止部５は前側が下がった状態となって前側係止部５Ａと後側係止部５Ｂが杭４の前後面部に係止する。
【００４２】
次いで、立設状態の操作体１の上部を持って下方へ伏動すると、接地体３の支軸６を支点にして杭係止部５がテコの原理により大きな力で上方へ持ち上げられる。
【００４３】
この際、杭係止部５は軸受部２を介して後端を持ち上げられるが、杭４は地中に打ち込まれていてかなり上方へ抜けない限りは倒れないために杭４の前後面を前側係止部５Ａと後側係止部５Ｂとで確固に咥え込み係止することになる。
【００４４】
そして、杭係止部５の上昇に伴って杭４は地面８から引き抜かれることになる。
【００４５】
また、この際本実施例では、図５，図６に示すように、前記操作体１を伏動させつつ前記杭係止部５を前方へ移動するように操作する。これにより、この杭係止部５が起動しながら前方へ移動して杭係止部５が略鉛直上方向へ起動することになり、杭４を略真上に引き抜くことができる。
一度で杭４の全部が抜けない場合には、伏動させた操作体１を立設状態に戻す。すると、杭係止部５は杭４に沿って滑り落ち、元の位置に戻る。
【００４６】
次いで、再び力をいれて操作体１を伏動させると、杭４が更に上方へと引き抜かれる。この作業を何度が繰り返すことで、杭４を地中から抜き取ることができる。
【００４７】
従って、コストのかかる重機を用いることなく、人力で杭４を簡単に引き抜くことが可能となる。
【００４８】
尚、本発明は、本実施例に限られるものではなく、各構成要件の具体的構成は適宜設計し得るものである。
【００４９】
【発明の効果】
本発明は上述のように構成したから、コストのかかる重機を用いることなく、人力で杭を簡単に引き抜くことが可能となり、しかも、操作体伏動操作時に、テコ作用の支点部となる軸受部を枢支した接地体が地面に対して動くような構造でなく、杭を係止した杭係止部が前方へと移動する構成であるから、しっかりと地面に接地している接地体に対して操作体の伏動操作を非常に行い易く、且つ安定したテコ作用が発揮されることになり、その上、杭を略鉛直上方向へと引き抜くから、杭を地面に対して斜め上方へ引き上げる場合のような余分な力を要せず、効率の良い杭抜き作業が行われることになるなど、極めて作業性に秀れ、実用性に秀れた画期的な杭抜き具となる。
【００５０】
また、請求項２記載の発明においては、前側係止部と後側係止部とで杭を確固に係止でき、しかも、杭係止部は起動しても軸受部に対して傾くために、杭に対する係止角度が変わらず係止状態が安定的に維持されることになるなど、一層実用性に秀れた杭抜き具となる。
【００５１】
また、請求項３記載の発明においては、杭係止部が接地体に対して前後方向に移動する構造を簡易に設計実現可能となる一層実用性に秀れた構成の杭抜き具となる。
【００５２】
また、請求項４記載の発明においては、確実に杭を地面に対して略鉛直上方向へ引き抜くことができる極めて実用性に秀れた杭抜き具となる。
【００５３】
また、請求項５記載の発明においては、軸受部が接地体に対して前後方向に移動する構造を簡易に設計実現可能となる一層実用性に秀れた構成の杭抜き具となる。
【００５４】
また、請求項６記載の発明においては、ガイド機構により接地体に対する軸受部の前後方向への移動、即ち、接地体に対する杭係止部の前後方向への移動が極めてスムーズに行われることになる一層実用性に秀れた構成の杭抜き具となる。
【００５５】
また、請求項７記載の発明においては、前記作用効果を確実に発揮するガイド機構を簡易に設計実現可能となる一層実用性に秀れた構成の杭抜き具となる。
【図面の簡単な説明】
【図１】本実施例を示す斜視図である。
【図２】本実施例の操作体を省略した拡大斜視図である。
【図３】本実施例の操作体を省略した分解斜視図である。
【図４】本実施例の杭係止部で杭を係止した状態を示す説明図である。
【図５】図４の状態から操作体を伏動させて杭を持ち上げた状態を示す説明図である。
【図６】図５の状態から更に操作体を伏動させて杭を更に持ち上げた状態を示す説明図である。
【符号の説明】
１操作体
２軸受部
２Ａ軸受孔
３接地体
４杭
５杭係止部
５Ａ前側係止部
５Ｂ後側係止部
６支軸
７ガイド機構
７Ａガイド軸
７Ｂガイド体[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a pile removing tool for removing a pile driven into the ground.
[0002]
[Prior art and problems to be solved by the invention]
For example, an enclosure is installed at a construction site or the like for the purpose of ensuring the safety of the surroundings, and this enclosure is structured to be supported by a plurality of piles driven into the ground.
[0003]
Thus, it is necessary to remove this enclosure together with the pile after the construction is completed, but since the pile driven deep into the ground is not easily detached, it has been conventionally removed using a heavy machine.
[0004]
However, it is not preferable to use a heavy machine only for removing a pile in consideration of cost.
[0005]
In view of such a current situation, the present invention provides an epoch-making pile remover that can easily remove a pile with only human power without using heavy machinery.
[0006]
[Means for Solving the Problems]
The gist of the present invention will be described with reference to the accompanying drawings.
[0007]
A bearing portion 2 is provided at one end of the long operating body 1, and the bearing portion 2 is pivotally attached to the grounding body 3 so that the operating body 1 can be pivoted up and down with respect to the grounding body 3. A pile locking portion 5 for locking the pile 4 is provided at the tip of the bearing portion 2, and when the operating body 1 is tilted with respect to the grounding body 3, the pile locking portion 5 is activated with the bearing portion 2 as a fulcrum. The pile locking portion 5 is configured to be movable in the front-rear direction with respect to the grounding body 3 , and the pile locking portion 5 is engaged with the pile 4 driven into the ground. When the operation body 1 is stopped and the operation body 1 is lowered, the pile locking portion 5 is moved forward with respect to the grounding body 3 while being activated, and is moved substantially vertically upward. The pile 4 that is locked to the pile is configured to be pulled out substantially vertically upward from the ground .
[0008]
Further, the pile locking part 5 provided with the front side locking part 5A and the rear side locking part 5B which can be locked at the front and rear positions of the pile 4 in an opposed state can be pivoted up and down with respect to the bearing part 2. those of the pile male die of claim 1 Symbol mounting, characterized in that provided.
[0009]
The bearing portion 2 is provided so as to be movable in the front-rear direction of the grounding body 3 with respect to the grounding body 3, and the pile locking portion 5 is moved in the front-rear direction with respect to the grounding body 3. The pile removal tool according to any one of claims 1 and 2 , wherein the pile removal tool is provided.
[0010]
In addition, by operating the pile locking portion 5 to move forward while the operating body 1 is tilted, the pile locking portion 5 moves forward while being activated, and the pile locking portion 5 It is comprised so that it may start to a substantially perpendicular | vertical upward direction, The pile removal tool of Claim 3 characterized by the above-mentioned.
[0011]
Further, the bearing portion 2 is grounded by forming the bearing hole 2A of the bearing portion 2 in a long hole shape, and by supporting the support shaft 6 provided in the grounding body 3 in the long hole shape bearing hole 2A. It is comprised so that it can move to the front-back direction with respect to the body 3, It concerns on the pile removal tool of any one of Claim 3 , 4 characterized by the above-mentioned.
[0012]
The pile removing tool according to claim 5, further comprising a guide mechanism 7 for guiding the movement of the support shaft 6 with respect to the bearing hole 2A having a long hole shape.
[0013]
The bearing 2 is provided with a guide shaft 7A, and the guide shaft 7A is provided with a guide body 7B. The guide body 7B is connected to the support shaft 6, and the guide shaft 7A serves as a fulcrum. 7B when the pivots, according to claim 6, characterized by being configured the guide mechanism 7 in which the support shaft 6 coupled to the guide member 7B is slid along the bearing hole 2A of the long hole shape It relates to a pile remover.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention (how to carry out the invention) considered to be suitable will be briefly described with reference to the drawings, showing its effects.
[0015]
The grounding body 3 is grounded to the ground 8, and the pile locking portion 5 is locked to an upper portion of the pile 4 driven into the ground 8 exposed from the ground surface.
[0016]
Then, when the long operating body 1 is tilted, the pile locking portion 5 that locks the pile 4 by the lever action with the bearing portion 2 as a fulcrum is activated with a large force to lift the pile 4. Since the pile 4 does not tilt unless it is pulled out so much upward, the pile locking portion 5 moves forward with respect to the grounding body 3, so that the pile locking portion 5 is substantially vertically upward. The pile 4 is lifted in a substantially vertical upward direction and pulled out from the ground 8.
[0017]
That is, when the operating body 1 is tilted, the grounding body 3 that pivotally supports the bearing portion 2 serving as a fulcrum for the lever action does not move with respect to the ground 8, and the pile locking portion 5 that locks the pile 4 moves forward. Therefore, it is very easy to perform the tilting operation of the operating body 1 with respect to the grounding body 3 that is firmly grounded to the ground 8, and a stable lever action is exhibited. Since the pile 4 is pulled out in a substantially vertical upward direction, an extra force is not required as in the case where the pile 4 is lifted obliquely upward with respect to the ground 8, and an efficient pile removing operation is performed.
[0018]
Therefore, it becomes an epoch-making pile remover excellent in practicality that enables the pile 4 to be easily pulled out manually without using costly heavy machinery.
[0019]
Further, for example, the pile locking portion 5 provided with a front locking portion 5A and a rear locking portion 5B that can be locked at the front and rear positions of the pile 4 in an opposed state is rotated up and down with respect to the bearing portion 2. If provided freely, the pile 4 can be securely locked by the front locking portion 5A and the rear locking portion 5B, and the pile locking portion 5 is inclined with respect to the bearing portion 2 even when it is activated. The locking angle with respect to the pile 4 does not change, and the locked state is stably maintained.
[0020]
【Example】
Specific embodiments of the present invention will be described with reference to the drawings.
[0021]
In this embodiment, as shown in FIG. 1, a bearing portion 2 is provided at one end of a long operating body 1, and the bearing portion 2 is attached to a grounding body 3 so that the operating body 1 is attached to the grounding body 3. When the operating body 1 is tilted with respect to the grounding body 3, the bearing section is configured to be configured so as to be freely pivoted up and down, and provided with a pile locking section 5 that locks the pile 4 at the tip of the bearing section 2. This pile locking part 5 is configured to start with 2 as a fulcrum.
[0022]
More specifically, the operating body 1 of the present embodiment employs a square bar-shaped metal bar having a length of about 1.1 m.
[0023]
As shown in FIGS. 2 and 3, one end of the two metal plates 20 having a substantially letter-shaped shape is placed on one end of the operating body 1 in a state of being opposed to each other with a gap in the horizontal direction. Are attached (welded), and the tip portions of the two plate members 20 project toward the side (front side on the left side of the drawing) substantially perpendicular to the length direction of the operating body 1. In this embodiment, the two plate members 20 are used as the bearing portion 2.
[0024]
A bearing hole 2A is formed in the middle of the bearing portion 2 composed of the two plate members 20, and a rotating shaft 9 is installed between the projecting tips. The part 5 is pivotally mounted so that it can be rotated up and down.
[0025]
Further, the bearing portion 2 has a lateral protrusion distance of about 17 cm with respect to the operating body 1.
[0026]
Here, the pile locking portion 5 will be described. The front side locking portion 5A and the rear side locking portion 5B that can be locked at the opposite front and back positions of the pile 4 are made of a substantially U-shaped metal in a plan view. It consists of members. Further, the interval between the front locking portion 5A and the rear locking portion 5B is configured to be slightly larger than the diameter of the pile 4, and further, rearward on the left and right of the rear end portion of the rear locking portion 5B. A shaft attachment portion 5C (convex portion) is integrally projected toward the rear, and the left and right shaft attachment portions 5C are attached to a rotating shaft 9 provided at the tip of the bearing portion 2.
[0027]
The grounding body 3 of the present embodiment has a configuration in which two metal support plates 3B are erected on a metal grounding bottom plate 3A in a left-right paired state at a predetermined interval.
[0028]
Further, a support shaft 6 is installed between the support plates 3B of the grounding body 3, and the operating body 1 is raised and lowered with respect to the grounding body 3 by pivotally attaching the support shaft 6 to the bearing hole 2A of the bearing portion 2. In addition to being configured so as to be rotatable, the operation body 1 is configured to stand upright when the pile locking portion 5 is not activated and is grounded to the ground 8 (see FIG. 1).
[0029]
Further, when the operation body 1 is lowered and the pile locking portion 5 is activated from the ratio of the length of the operation body 1 described above and the length of the bearing portion 2 protruding from the operation body 1 to the side, By the action, the pile locking portion 5 is configured to be lifted upward with a large force.
[0030]
In the present embodiment, the pile locking portion 5 is configured to be able to project and retract in the front-rear direction with respect to the grounding body 3.
[0031]
Specifically, the bearing portion 2 is configured to be movable in the front-rear direction with respect to the grounding body 3, and the pile locking portion 5 is projected and retracted relative to the grounding body 3 in the front-rear direction. It is said.
[0032]
More specifically, by forming the bearing hole 2A of the bearing portion 2 into a long hole shape, the bearing portion 2 can be moved in the front-rear direction with respect to the support shaft 6 provided in the grounding body 3. ing.
[0033]
In this embodiment, the guide mechanism 7 is provided to guide the movement of the support shaft 6 with respect to the long hole-shaped bearing hole 2A.
[0034]
More specifically, the bearing portion 2 is provided with a guide shaft 7A, and the guide shaft 7A is provided with the guide body 7B.
[0035]
As shown in FIGS. 2 and 3, the guide shaft 7A is provided in the vicinity of the bearing hole 2A in the middle of the bearing portion 2, and is formed in a plate shape at both left and right ends of the guide shaft 7A protruding outside the bearing portion 2. One end of the guide body 7B (oval-shaped metal plate) is connected. That is, the guide body 7 </ b> B is disposed on the left and right outer sides of the bearing portion 2.
[0036]
Further, the guide body 7B is configured to set the position of the guide shaft 7A so that the other end portion closes the bearing hole 2A from the outside when the guide shaft 7A is rotated about the fulcrum. A matching hole 20 is formed in the other end of the guide body 7B so as to correspond to the bearing hole 2A.
[0037]
Further, here, the bearing hole 2A will be further described. As shown in FIG. 3, the guide shaft 7A is placed at a position in the middle of the plate member 20 constituting the bearing portion 2 and above the guide shaft 7A. When the guide body 7B rotates with the guide shaft 7A as a fulcrum, the mating hole 10 at the other end of the guide body 7B is a bearing with the curved long hole shape. It is configured to move along the hole 2A.
[0038]
Further, the support shaft 6 provided in the grounding body 3 is connected to the guide body 7B through the alignment hole 20 and is inserted into the bearing hole 2A. That is, when the guide body 7B rotates about the guide shaft 7A, the support shaft 6 connected to the other end of the guide body 7B slides in the curved bearing hole 2A according to the movement of the guide body 7B. The movement of the support shaft 6 is guided by the result guide body 7B.
[0039]
In the figure, 11 is a washer interposed between the guide body 7B and the support plate 3B of the grounding body 3, 12 is a retaining pin for retaining the support shaft 6 and the guide shaft 7A, and 13 is provided in the bearing portion 2. A through hole for mounting the guide shaft 7A, 14 is a mounting hole for mounting the guide shaft 7A provided in the guide body 7B, and 15 is a shaft hole for mounting the support shaft 6 provided in the support plate 3B of the grounding body 3.
[0040]
Next, a method for pulling out the pile 4 using this embodiment will be described.
[0041]
As shown in FIG. 4, when the grounding body 3 is grounded on the ground 8 and the pile 4 driven into the ground is inserted between the front side locking portion 5 </ b> A and the rear side locking portion 5 </ b> B of the pile locking portion 5. Since the interval between the front locking portion 5A and the rear locking portion 5B is larger than the diameter of the pile 4, the pile locking portion 5 is in a state where the front side is lowered and the rear locking portion 5A and the rear The side locking portions 5B are locked to the front and rear surface portions of the pile 4.
[0042]
Next, if the operator body 1 is tilted downward while holding the upper part of the operation body 1 in the standing state, the pile locking portion 5 is lifted upward with a large force by the lever principle with the support shaft 6 of the grounding body 3 as a fulcrum.
[0043]
At this time, the pile locking portion 5 is lifted at the rear end via the bearing portion 2, but the pile 4 is driven into the ground and will not fall down unless it is pulled out considerably upward. The latching portion 5A and the rear latching portion 5B firmly hold and latch.
[0044]
Then, the pile 4 is pulled out from the ground 8 as the pile locking portion 5 rises.
[0045]
In this embodiment, as shown in FIGS. 5 and 6, the pile locking portion 5 is operated to move forward while the operating body 1 is moved down. Thereby, this pile latching | locking part 5 will move ahead, starting, and the pile latching | locking part 5 will be started to the substantially perpendicular | vertical upward direction, and the pile 4 can be pulled out substantially right above.
When all of the piles 4 cannot be removed at once, the operation body 1 that has been lowered is returned to the standing state. Then, the pile locking part 5 slides down along the pile 4 and returns to the original position.
[0046]
Next, when force is applied again and the operating body 1 is lowered, the pile 4 is further pulled out upward. The pile 4 can be extracted from the ground by repeating this operation many times.
[0047]
Accordingly, it is possible to easily pull out the pile 4 manually without using costly heavy machinery.
[0048]
Note that the present invention is not limited to this embodiment, and the specific configuration of each component can be designed as appropriate.
[0049]
【The invention's effect】
Since the present invention is configured as described above, it is possible to easily pull out a pile manually without using a costly heavy machine, and at the same time, a bearing portion that serves as a fulcrum portion for lever action when operating the control body The structure is such that the grounding body that pivotally supports the pile does not move with respect to the ground, and the pile locking part that locks the pile moves forward. In addition, it is very easy to perform the tilting operation of the operating body, and a stable lever action is exhibited. In addition, since the pile is pulled out substantially vertically upward, the pile is lifted obliquely upward with respect to the ground. It is an epoch-making pile removing tool that is extremely excellent in workability and practicality, such as an efficient pile removing operation that does not require extra force as in the case.
[0050]
Further, in the invention according to claim 2 , since the pile can be firmly locked by the front side locking portion and the rear side locking portion, and the pile locking portion is inclined with respect to the bearing portion even when activated. Thus, the pile removal tool is further excellent in practicality, for example, the locking state with respect to the pile does not change and the locked state is stably maintained.
[0051]
Moreover, in the invention of Claim 3 , it becomes a pile removal tool of the structure which was excellent in the practicality from which the design which can implement | achieve design easily the structure which a pile latching | locking part moves to the front-back direction with respect to a grounding body is attained.
[0052]
Moreover, in invention of Claim 4 , it becomes a pile extractor excellent in the practicality which can pull out a pile to the substantially perpendicular | vertical upward direction reliably with respect to the ground.
[0053]
In the invention according to claim 5 , the pile remover has a more practical configuration in which the structure in which the bearing portion moves in the front-rear direction with respect to the grounding body can be easily realized.
[0054]
In the invention according to claim 6 , the movement of the bearing portion in the front-rear direction with respect to the grounding body, that is, the movement of the pile locking portion relative to the grounding body in the front-rear direction is performed very smoothly by the guide mechanism. It becomes a pile remover with a configuration that is more practical.
[0055]
The invention according to claim 7 provides a pile remover having a configuration that is more practical and that can easily design and realize a guide mechanism that reliably exhibits the above-described effects.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment.
FIG. 2 is an enlarged perspective view in which an operation body of the present embodiment is omitted.
FIG. 3 is an exploded perspective view in which an operation body of the present embodiment is omitted.
FIG. 4 is an explanatory view showing a state in which a pile is locked by a pile locking portion of the present embodiment.
FIG. 5 is an explanatory view showing a state in which the pile is lifted by lowering the operating body from the state shown in FIG. 4;
6 is an explanatory view showing a state where the operating body is further lowered from the state of FIG. 5 and the pile is further lifted. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Operation body 2 Bearing part 2A Bearing hole 3 Grounding body 4 Pile 5 Pile latching part 5A Front side latching part 5B Rear side latching part 6 Support shaft 7 Guide mechanism 7A Guide shaft 7B Guide body

Claims

A bearing is provided at one end of the long operating body, and this bearing is attached to the grounding body so that the operating body can be pivoted up and down with respect to the grounding body. A pile locking part for locking the pile is provided, and when the operating body is tilted with respect to the grounding body, the pile locking part is configured to start with the bearing part as a fulcrum, When configured to be movable in the front-rear direction with respect to the grounding body, when the pile locking portion is locked to a pile driven into the ground and the operating body is lowered, the pile locking portion is It is configured to move forward with respect to the grounding body while starting and move substantially vertically upward, and in accordance with this, the pile locked to the pile locking portion is pulled out substantially vertically upward from the ground. pile male dies, characterized in that it was.

The pile locking portion provided with a front locking portion and a rear locking portion that can be locked at the front and rear positions of the pile in an opposed state is provided so as to be able to swing up and down with respect to the bearing portion. pile male die of claim 1 Symbol placement.

The bearing portion is provided so as to be movable in the front-rear direction of the grounding body with respect to the grounding body, and the pile locking portion is configured to move in the front-rear direction with respect to the grounding body. Item 3. A pile remover according to any one of items 1 and 2 .

By operating the pile locking portion to move forward while the operating body is tilted down, this pile locking portion moves forward while starting and the pile locking portion starts substantially vertically upward. The pile extractor according to claim 3 , wherein the pile remover is configured to do so.

The bearing hole of the bearing part is formed in a long hole shape, and the bearing part is moved in the front-rear direction with respect to the grounding body by pivotally supporting the shaft provided on the grounding body in the long hole-shaped bearing hole. The pile extractor according to any one of claims 3 and 4 , wherein the pile extractor is configured to be able to perform.

The pile removing tool according to claim 5, further comprising a guide mechanism for guiding the movement of the support shaft with respect to the long hole-shaped bearing hole.

A guide shaft is provided on the bearing portion, and a guide body is provided on the guide shaft. The guide body is connected to the guide body, and the guide body is rotated when the guide body is rotated about the guide shaft. The pile removing tool according to claim 6, wherein the guide mechanism 7 is configured such that the support shaft connected to the sliding mechanism slides along the long hole-shaped bearing hole.