JPS63194023A - Auger screw in expanding system - Google Patents
Auger screw in expanding systemInfo
- Publication number
- JPS63194023A JPS63194023A JP2538887A JP2538887A JPS63194023A JP S63194023 A JPS63194023 A JP S63194023A JP 2538887 A JP2538887 A JP 2538887A JP 2538887 A JP2538887 A JP 2538887A JP S63194023 A JPS63194023 A JP S63194023A
- Authority
- JP
- Japan
- Prior art keywords
- screw
- auger
- blades
- auger screw
- expanding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000009412 basement excavation Methods 0.000 abstract description 5
- 230000008602 contraction Effects 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 14
- 239000010959 steel Substances 0.000 description 14
- 238000005452 bending Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
Description
（産業上の利用分野）
本発明は、地中に掘進したスクリュ羽根を拡張して、大
きな引抜抵抗力を発揮するオーガスクリュに関する。
（従来の技術）
従来のオーガスクリュは、オーガ軸の先端にピットを取
付け、オーガ軸の周囲にはスパイラルに固定羽根が連続
して取付けられるものである。このオーガスクリュで地
中にポーリング穴を掘削する場合には、オーガスクリュ
を回転駆動装置に接続して、回転させながら地中に圧入
すると、地中の泥を排出しながら掘進する。この旧道は
先端のピットで地中の泥を攪拌しながら固定羽根で泥を
上方に搬出し、周囲の泥との抵抗を振切りながら行われ
る。
（発明が解決しようとする問題点）
ところが、開削後のオーガスクリュを地中に埋没させた
まま、例えば杭圧入引抜機の反力架台に取付けてアンカ
ー等として使用したい場合がある。
しかしながら、オーガスクリュはポーリング穴の掘削専
用となっており、引抜抵抗を小さくして引抜きが容易に
できるようにしているため、反力が小さくアンカー等と
して利用することができない。
本発明はかかる点に鑑みてなされたもので、地中に掘進
した後オーガスクリュを地中に埋没させたまま一時的に
地中に固定し大きな引抜抵抗力を持たせて、反力架台の
アンカー等として利用できる拡張式オーガスクリュを提
供することを目的としている。
Ｃ問題点を解決するための手段）
上記目的を達成するために、本発明はオーガ軸内部下方
に、シリンダ装置を固定し、該シリンダ装置に対応する
オーガ軸の外周に拡張可能なスクリュ羽根を回動自在に
取付け、上記シリンダ装置のロッド先端と、該スクリュ
羽根の一部を回動自在に連結した構成よりなる。
（作用）
拡張式オーガスクリュを回転駆動装置に接続し、オーガ
軸を回転させながら地中に圧入すると、拡張スクリュ羽
根を閉じた状態で、地中の泥を排出しながら掘進する。
所定の深さまで同道したら、シリンダ装置によって拡張
スクリュ羽根を拡張させると、拡張スクリュ羽根が地中
でアンカーしオーガスクリュが固定されろ。従って、こ
のオーガスクリュに引抜力が作用しても、拡張スクリュ
羽根が地中の土圧を受けて大きな引抜抵抗力を発揮する
ため、反力架台等のアンカー等として利用できる。
（実施例）
次に、添付図面に基づき本発明の詳細な説明する。第１
図（Ａ）及びＣＢ）はオーガスクリュの正面図、第２図
は第１図（Ａ）のｌｌ−ｌｌ、＆％断面図及び第３図は
第１図（Ｂ）のＩ−ＩＩ線断面図である。
オーガスクリュ１のオーガ軸２の周囲の上部と中央部は
固定スクリュ羽根４．４・・が形成され、下部は拡張ス
クリュ羽根５．５・・が形成されていて下端にはピット
３を構成している。
オーガスクリュ１のオーガ軸２内部下方にはシリンダ装
置９が、前記拡張スクリュ羽根５に対応する位置に水平
に架設され、後述のように拡張スクリュ羽根５．５・・
を開閉作動せしめる。
前記拡張スクリュ羽根５は第２図及び第３図に示すよう
に三ケ月形状であり、基部５ａをピン８によりオーガ軸
２の外周部に水平方向に回動自在に固定されている。ま
た、拡張スクリュ羽根５の突部５ｂはシリンダ装置９の
ロッド９ａの先端に接続され、ロッド９ａを伸退させる
ことにより拡張スクリュ羽根５を、上記ピン８を中心に
回動せしめ開閉可能としている。
また拡張スクリュ羽根５の先端内側には凹部５Ｃを構成
したため、第２図に示すように拡張スクリュ羽根５が閉
じた時には、隣接の拡張スクリュ羽根５のピン８が凹部
５ｃに収まり、拡張スクリュ羽根５は固定スクリュ羽根
４と同様な形状になるため、オーガスクリュ１の地中掘
進を妨げない。
次に、本実施例の作用を説明する。
第１図（Ａ）に示すように拡張式オーガスクリ：Ｌｌの
上端の支持部６を図示しない建柱車等の回転駆動装置の
チャック７に接続し、拡張スクリュ羽根５を閉じた状態
で、オーガ軸２を回転させながら地中に圧入する。この
とき、オーガ軸２の先端のビット３で地中の泥を攪拌し
ながら固定スクリュ羽根４及び拡張スクリュ羽根５で地
中の泥を排出ながら掘進する。そして、所定の深さまで
掘進すると、第３図に示すようにシリンダ装置９を作動
させてロッド９ａを伸長する。ロッド９ａの先端は上記
突部５ｂに軸支されているため、拡張スクリュ羽根５は
基部５ａを軸支するピン８を中心に拡張して、第１図（
Ｂ）に示すように地中にアンカーされる。
この状態でオーガスクリュ１に引抜力を作用させても、
拡張スクリュ羽根５に土圧がかかり大きな引抜抵抗力が
生じるため、オーガスクリュ１は引抜力に打ち勝ち地中
に固定される。
とのオーガスクリュ１を引き抜くときは、拡張スクリュ
羽根５を閉じて行う。また、本実施例のオーガスクリュ
１は、拡張スクリュ羽根５を閉じることにより、通常の
オーガスクリュとして使用できる乙とは言うまでもない
。
次に、この拡張式オーガスクリュ１を鋼管杭圧入の際の
反力として利用した応用例を説明する。
第４図において、１１は鋼管杭であり、乙の杭１１の内
側には圧入装置１２が配置されている。
この圧入装置１２は、オーガスクリュ１と、オーガスク
リュ１の上端に接続した伸縮駆動装置１９、スイベルジ
ヨイント２０を介して取付けた回転駆動装置２１及び固
定装置２２よりなり、該固定装置２２によって鋼管杭１
１の天端に固定され、オーガスクリュ１の上下動及び回
転が自在になっている。
次に、前記装置を用いて鋼管杭１１の圧入方法を第４図
に基づき説明する。まず圧入装置１２をオーガスクリュ
１の先端から鋼管杭１１に押通し、固定装置２２によっ
て鋼管杭１１の上部に固定する。そしてクレーンのアー
ム２３で圧入装置１２を吊り下げる。
次に鋼管杭１１に押通されたオーガスクリュ１の先端を
地上の圧入位置にセットする（Ａ）。
支持部２４をアーム２３で支持したまま、回転駆動装置
２１でオーガスクリュ１を回転させ、鋼管杭１１の先端
が接地するまで掘進する（Ｂ）。
鋼管杭１１の先端が接地したら次に伸縮駆動装置１９を
作動させロッド１９ａを伸長させつつオーがスクリュ１
を回転させて地中に掘進させ、ロッド１９ａのストロー
クが最大に伸びたところでオーガスクリュ１の掘進を停
止する（Ｃ）。
次にオーガスクリュ１内のシリンダ装置９を作動きせロ
ッド９ａを伸長して拡張スクリュ羽根５をピン８を中心
に回動させることで拡張せしめ地中にアンカーし、オー
ガスクリュ１を地中に固定する（Ｄ）。
この状態で最大に伸長している伸縮駆動装置１９を縮め
ると拡張スクリュ羽根５．５・・が強力な反力となり、
鋼管杭１１は地中に圧入していく（Ｅ）。この場合、オ
ーガスクリュ１の掘進は、抗１１の圧入地盤を緩める働
きをなすから、杭１１の圧入時には貫入抵抗が軽減され
ることになる。
鋼管杭１１が伸縮駆動装置１９の１ストロ一ク分圧入さ
れると、次にシリンダ装置９を作動して、地中に拡張し
ている拡張スクリュ羽根５を縮少し元の状態にもどしく
Ｆ）、初期状態とし、この工程を繰り返すことで鋼管杭
１１を圧入する。
鋼管杭１１を所定の深さまで圧入したら固定装置２２を
解放し圧入装置１２をクレーンで上方へ引き抜く。
このように本応用例では、本実施例のオーガスクリュを
使用することで、鋼管杭の圧入全容易に行うことができ
、重機の小型化やリーグの不要あるいは狭隘な作業現場
での鋼管杭の圧入が可能となる。
他の応用例としては、第５図に示すようにオーガスクリ
ュ１を杭圧入引抜機３０の反力架台３１の隅部に設ける
ことで、初期杭の圧入時の反力を容易に得ることができ
、反力架台３１の小型化を達成できろ。
更に本実施例を用いた他の応用例は、第６図乃至第８図
に示すオーガスクリュを備えた作業装置である。この作
業装置は、夫々がブーム支持台４３と、クランプ４２と
、該ブーム支持台４３とクランプ４２間に介在してクラ
ンプ４２を旋回駆動させる旋回装置４１とを有する一対
の支持基体４０と、一対の伸縮駆動可能なブーム腕４６
の夫々の一方端を該支持基体４０の夫々のブーム支持台
４３に起伏可能に接続し、他方端を屈伸駆動可能な関節
を介して連結してなるブーム部材４５と、前記クランプ
４２の夫々に着脱可能に保持固定されたオーガスクリュ
１とから成るものである。
この作業装置の作用を簡単に説明すると、ブーム部材４
６の一方端の支持基体４０のオーガスクリュ１を回転さ
せて地中に掘進させ、装置全体を地盤に支持させる（第
６図参照）。他方端の支持基体４０を自由状態にしてブ
ーム部材４６を屈伸させ、これと同時に地盤に固定支持
された前記一方の支持基体４０の旋回装置４１を回転作
動させてブーム部材４３を旋回させる。これにより、前
記一方の支持基体４０を中心にブーム部材４６の全長を
半径とした範囲内のどの箇所にも他方の支持基体４０を
位置づけることができる。
こうして、他方の支持基体４０を所定の場所に位置づけ
、当該他方の支持基体４０の旋回装置４１を回転作動さ
せてオーガスクリュ１を地中に掘進させると、当該他方
の支持基体４０を地盤に対して固定支持できる（第７図
参照）。
次に、前記一方の支持基体４０のオーガスクリ二１を逆
回転させて地上に引揚げる。これにより自由になった当
該一方の支持基体４０を、他方の支持基体４０の旋回袋
［４１の回転作動とブーム部材４６の屈伸作動の複合運
動によって移動させて、再び、オーガスクリュ１を回転
させて地中に旧道させる。
上記作業を繰り返すことで装置は所定の地点に自走移動
する。適宜地点で、一方の支持基体４０のクランプ４２
からオーガスクリ五１を外して適当な荷役アタッチメン
ト５０を取付けると、他方の支持基体を中心にブーム部
材４６の全長を半径とした作業範囲内で各種荷役作業が
行える（第８図参照）。また、同様にして、オーガスク
リュ１を外したクランプ４２で既設杭に乗り移ったり、
あるいは、トラック等の運搬車両の荷台に設けた固定装
置に乗り移って装置のＭＥを容易にする等の補助的作業
に供することができる。
これらの作業中には、前述のようにオーガスクリュ１の
拡張スクリュ羽根５を必要に応じて拡張し、大きな反力
を得ることができるので支持基体４０が地上に確固に立
設し、各種作業が安定して行える。このように本応用例
によれば、狭隘空間の作業現場でも搬入可能であり、不
整地あるいは軟弱地盤等でも自走が可能で、安定して作
業が行える小型軽量の作業装置が得られる。
（発明の効果）
本発明は前述のように、オーガスクリュの先行部分を地
中で拡大させて一時的にアンカーさせるものであるから
、引抜力に対して容易に強力な反力が得られる等の効果
を奏する。(Industrial Application Field) The present invention relates to an auger screw that exhibits a large pull-out resistance force by expanding screw blades dug into the ground. (Prior Art) A conventional auger screw has a pit attached to the tip of an auger shaft, and fixed blades are continuously attached in a spiral manner around the auger shaft. When excavating a polling hole in the ground with this auger screw, the auger screw is connected to a rotary drive device and is forced into the ground while being rotated, and the hole is excavated while expelling mud from the ground. This old road is carried out by stirring the mud underground in a pit at the tip and carrying it upwards using fixed blades, shaking off the resistance from the surrounding mud. (Problems to be Solved by the Invention) However, there are cases where it is desired to use the auger screw after excavation as an anchor by attaching it to a reaction mount of a pile press-in/extraction machine, for example, while it remains buried in the ground. However, auger screws are used exclusively for drilling poling holes, and because they are designed to reduce pull-out resistance and facilitate pull-out, the reaction force is small and they cannot be used as anchors or the like. The present invention has been made in view of this point, and after digging into the ground, the auger screw is temporarily fixed in the ground while being buried in the ground to provide a large pulling resistance, and the reaction mount is The purpose is to provide an expandable auger screw that can be used as an anchor, etc. Means for Solving Problem C) In order to achieve the above object, the present invention fixes a cylinder device below the inside of the auger shaft, and provides an expandable screw blade on the outer periphery of the auger shaft corresponding to the cylinder device. It is rotatably mounted and has a configuration in which the rod tip of the cylinder device and a part of the screw blade are rotatably connected. (Function) When the expansion type auger screw is connected to the rotation drive device and pressed into the ground while rotating the auger shaft, the expansion screw blades are closed and the earth excavates while expelling mud from the ground. When the expansion screw blade is expanded to a predetermined depth, the expansion screw blade is anchored in the ground and the auger screw is fixed. Therefore, even if a pull-out force is applied to this auger screw, the expansion screw blades will receive the earth pressure underground and exert a large pull-out resistance, so that it can be used as an anchor for a reaction mount or the like. (Example) Next, the present invention will be described in detail based on the accompanying drawings. 1st
Figures (A) and CB) are front views of the auger screw, Figure 2 is a ll-ll, &% sectional view of Figure 1 (A), and Figure 3 is a cross section taken along the I-II line of Figure 1 (B). It is a diagram. Fixed screw blades 4.4 are formed in the upper and central parts of the auger shaft 2 of the auger screw 1, and expansion screw blades 5.5 are formed in the lower part, and a pit 3 is formed at the lower end. ing. A cylinder device 9 is horizontally installed below the auger shaft 2 of the auger screw 1 at a position corresponding to the expansion screw blades 5, and as described below, the cylinder device 9 is installed horizontally in the lower part of the auger shaft 2 of the auger screw 1.
Operate opening and closing. The expansion screw blade 5 has a crescent shape as shown in FIGS. 2 and 3, and has a base portion 5a fixed to the outer peripheral portion of the auger shaft 2 by a pin 8 so as to be freely rotatable in the horizontal direction. Further, the protrusion 5b of the expansion screw blade 5 is connected to the tip of the rod 9a of the cylinder device 9, and by extending and retracting the rod 9a, the expansion screw blade 5 can be rotated around the pin 8 and opened and closed. . Furthermore, since a recess 5C is formed inside the tip of the expansion screw blade 5, when the expansion screw blade 5 is closed as shown in FIG. Since the screw blade 5 has the same shape as the fixed screw blade 4, it does not prevent the auger screw 1 from digging underground. Next, the operation of this embodiment will be explained. As shown in FIG. 1(A), the support part 6 at the upper end of the expandable auger screw Ll is connected to the chuck 7 of a rotary drive device (not shown) such as a pole-erecting vehicle, and the auger screw is closed with the expansion screw blade 5 closed. Press fit into the ground while rotating the shaft 2. At this time, the excavation is carried out while stirring the mud underground with the bit 3 at the tip of the auger shaft 2 and discharging the mud with the fixed screw blade 4 and the expansion screw blade 5. When the excavation reaches a predetermined depth, the cylinder device 9 is operated to extend the rod 9a as shown in FIG. Since the tip of the rod 9a is pivotally supported by the projection 5b, the expansion screw blade 5 expands around the pin 8 that pivotally supports the base 5a, as shown in FIG.
It is anchored underground as shown in B). Even if a pulling force is applied to the auger screw 1 in this state,
Since earth pressure is applied to the expansion screw blade 5 and a large pulling resistance force is generated, the auger screw 1 overcomes the pulling force and is fixed in the ground. When pulling out the auger screw 1, the expansion screw blade 5 is closed. Furthermore, it goes without saying that the auger screw 1 of this embodiment can be used as a normal auger screw by closing the expansion screw blade 5. Next, an application example in which this expandable auger screw 1 is used as a reaction force during press-fitting of a steel pipe pile will be described. In FIG. 4, 11 is a steel pipe pile, and a press-fitting device 12 is arranged inside the pile 11. This press-fitting device 12 consists of an auger screw 1, a telescopic drive device 19 connected to the upper end of the auger screw 1, a rotary drive device 21 attached via a swivel joint 20, and a fixing device 22. Pile 1
The auger screw 1 is fixed to the top end of the auger screw 1, and the auger screw 1 can move up and down and rotate freely. Next, a method of press-fitting the steel pipe pile 11 using the above-mentioned apparatus will be explained based on FIG. 4. First, the press-fitting device 12 is pushed through the steel pipe pile 11 from the tip of the auger screw 1, and is fixed to the upper part of the steel pipe pile 11 by the fixing device 22. Then, the press-fitting device 12 is suspended by the arm 23 of the crane. Next, the tip of the auger screw 1 pushed through the steel pipe pile 11 is set at a press-fitting position on the ground (A). While the support part 24 is supported by the arm 23, the auger screw 1 is rotated by the rotary drive device 21, and excavation is carried out until the tip of the steel pipe pile 11 touches the ground (B). When the tip of the steel pipe pile 11 touches the ground, the telescopic drive device 19 is activated to extend the rod 19a while the O is connected to the screw 1.
The auger screw 1 is rotated to dig into the ground, and when the stroke of the rod 19a reaches its maximum, the auger screw 1 stops digging (C). Next, the cylinder device 9 in the auger screw 1 is activated, the rod 9a is extended, and the expansion screw blades 5 are rotated around the pin 8 to expand and anchor in the ground, and the auger screw 1 is placed in the ground. Fix it (D). In this state, when the telescopic drive device 19, which has been extended to the maximum, is contracted, the expansion screw blades 5.5... generate a strong reaction force.
The steel pipe pile 11 is press-fitted into the ground (E). In this case, the digging of the auger screw 1 serves to loosen the ground into which the piles 11 are pressed, so that the penetration resistance when the piles 11 are pressed in is reduced. When the steel pipe pile 11 is press-fitted by one stroke of the telescopic drive device 19, the cylinder device 9 is then activated to contract the expansion screw blade 5 that is expanding underground and return it to its original state. ), and the steel pipe pile 11 is press-fitted by repeating this process. After the steel pipe pile 11 is press-fitted to a predetermined depth, the fixing device 22 is released and the press-fitting device 12 is pulled upward by a crane. In this application example, by using the auger screw of this example, it is possible to press-in steel pipe piles easily, making it possible to downsize heavy machinery, eliminate the need for leagues, or insert steel pipe piles in narrow work sites. Press-fitting becomes possible. As another application example, as shown in FIG. 5, by installing the auger screw 1 at the corner of the reaction force mount 31 of the pile press-in/extraction machine 30, it is possible to easily obtain the reaction force at the time of initial pile press-in. It is possible to achieve a reduction in the size of the reaction force frame 31. Furthermore, another application example using this embodiment is a working device equipped with an auger screw shown in FIGS. 6 to 8. This working device includes a pair of support bases 40 each having a boom support base 43, a clamp 42, and a swinging device 41 interposed between the boom support base 43 and the clamp 42 to rotate the clamp 42; boom arm 46 that can be driven telescopically
A boom member 45 having one end thereof connected to each boom support stand 43 of the support base 40 so as to be able to rise and fall, and the other end thereof being connected via a joint capable of bending and extending, and each of the clamps 42. The auger screw 1 is detachably held and fixed. To briefly explain the operation of this working device, the boom member 4
The auger screw 1 of the support base 40 at one end of the device 6 is rotated to dig into the ground, and the entire device is supported on the ground (see FIG. 6). The support base 40 at the other end is left in a free state to bend and extend the boom member 46, and at the same time, the swing device 41 of the one support base 40 fixedly supported on the ground is rotated to rotate the boom member 43. Thereby, the other support base 40 can be positioned at any location within a range having the entire length of the boom member 46 as a radius around the one support base 40 . In this way, when the other support base 40 is positioned at a predetermined location and the rotation device 41 of the other support base 40 is rotated to drive the auger screw 1 into the ground, the other support base 40 is placed in the ground. It can be fixedly supported (see Figure 7). Next, the auger screen 1 of the one support base 40 is rotated in the opposite direction and lifted to the ground. The one support base 40, now free, is moved by a combined movement of the rotating operation of the swing bag [41] of the other support base 40 and the bending/stretching operation of the boom member 46, and the auger screw 1 is rotated again. and put the old road underground. By repeating the above operations, the device moves by itself to a predetermined location. Clamps 42 of one support base 40 at appropriate points
When the auger chest 51 is removed and a suitable cargo handling attachment 50 is attached, various cargo handling operations can be performed within a working range with the entire length of the boom member 46 as the center around the other support base (see FIG. 8). Also, in the same way, the clamp 42 with the auger screw 1 removed can be used to transfer to the existing pile,
Alternatively, it can be used for auxiliary work such as transferring to a fixing device provided on the loading platform of a transport vehicle such as a truck to facilitate ME of the device. During these operations, as mentioned above, the expansion screw blades 5 of the auger screw 1 can be expanded as necessary to obtain a large reaction force. can be performed stably. As described above, according to this application example, a small and lightweight working device that can be carried into a work site with a narrow space, can be self-propelled even on uneven or soft ground, and can perform work stably can be obtained. (Effects of the Invention) As described above, the present invention expands the leading part of the auger screw underground and temporarily anchors it, so a strong reaction force against the pulling force can be easily obtained. It has the effect of
図面は本発明の実施例を示すもので、第１図（Ａ）及び
（Ｂ）はオーガスクリュの正面図、第２図は第１図（Ａ
）の■−■綿断面断面図３図は第１図（Ｂ）のト］線断
面図、第４図は鍔管抗の圧入に拡張式オーガスクリュを
用いた例を示す説明図、第５図は反力架台に拡張式オー
ガスクリュを用いた例を示す説明図、第６図乃至第８図
は作業装置に拡張式オーガスクリュを用いた例を示す説
明図である。
１・・オーガスクリュ ４・・固定スクリュ羽根５・・
拡張スクリュ羽根 ９・・シリンダ装置代理人 弁理
士 １）中 二 部
（Ａ） （Ｂ）
第１図
ｔｇ５図
１、事件の表示
昭和６２年特許願第２５３８８号
２、 発明の名称
拡張式オーガスクリュ
６、補正の対象The drawings show an embodiment of the present invention, and FIGS. 1(A) and (B) are front views of the auger screw, and FIG. 2 is a front view of the auger screw.
Figure 3 is a cross-sectional view taken along line G in Figure 1 (B), Figure 4 is an explanatory diagram showing an example of using an expandable auger screw for press-fitting a collar pipe, Figure 5 The figure is an explanatory view showing an example in which an expandable auger screw is used as a reaction force frame, and FIGS. 6 to 8 are explanatory views showing an example in which an expandable auger screw is used in a working device. 1. Auger screw 4. Fixed screw blade 5.
Expansion screw blade 9... Cylinder device agent Patent attorney 1) Part 2 (A) (B) Fig. 1 tg5 Fig. 1, Case indication 1988 Patent Application No. 25388 2, Name of invention Expandable auger screw 6. Subject of correction
７、補正の内容 明細書中、第１２頁第９行乃至第１０ 方さ ｄｂ 「第１図（Ａ）及び（Ｂ）はオーガ リュの正面図」を「第１図はオーガ リュの正面図」と補正する。 以上 7. Contents of correction In the specification, page 12, lines 9 to 10 direction db ``Figure 1 (A) and (B) show the auger ``Front view of Ryu'' to ``Figure 1 is the front view of the ogre. ``Front view of Ryu''. that's all
Claims (1)
装置に対応するオーガ軸の外周に拡張可能なスクリュ羽
根を回動自在に取付け、上記シリンダ装置のロッド先端
と、上記スクリュ羽根の一部を回動自在に連結し、シリ
ンダ装置のロッドの伸縮によって、スクリュ羽根を開閉
させることを特徴とする拡張式オーガスクリュ。A cylinder device is fixed at the lower part inside the auger shaft, and an expandable screw blade is rotatably attached to the outer periphery of the auger shaft corresponding to the cylinder device, and the rod tip of the cylinder device and a part of the screw blade are rotated. An expandable auger screw is characterized in that the screw blades are movably connected and opened and closed by expanding and contracting the rod of the cylinder device.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2538887A JPS63194023A (en) | 1987-02-05 | 1987-02-05 | Auger screw in expanding system |
| US07/286,291 US4893669A (en) | 1987-02-05 | 1988-12-19 | Synthetic resin heat exchanger unit used for cooling tower and cooling tower utilizing heat exchanger consisting of such heat exchanger unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2538887A JPS63194023A (en) | 1987-02-05 | 1987-02-05 | Auger screw in expanding system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63194023A true JPS63194023A (en) | 1988-08-11 |
Family
ID=12164491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2538887A Pending JPS63194023A (en) | 1987-02-05 | 1987-02-05 | Auger screw in expanding system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63194023A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH059936A (en) * | 1991-06-28 | 1993-01-19 | Watanabe Tsuguhiko | Multiblade automatic spreading type stay anchor |
| US6210077B1 (en) | 1998-03-19 | 2001-04-03 | Kabushikigaisha Jiban Shikenjo | Mechanical ground anchor |
| CN102864771A (en) * | 2012-08-22 | 2013-01-09 | 石午江 | Electric chassis special for vibroflot |
-
1987
- 1987-02-05 JP JP2538887A patent/JPS63194023A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH059936A (en) * | 1991-06-28 | 1993-01-19 | Watanabe Tsuguhiko | Multiblade automatic spreading type stay anchor |
| US6210077B1 (en) | 1998-03-19 | 2001-04-03 | Kabushikigaisha Jiban Shikenjo | Mechanical ground anchor |
| CN102864771A (en) * | 2012-08-22 | 2013-01-09 | 石午江 | Electric chassis special for vibroflot |
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