JPH076196Y2 - Chuck device for press-in / pull-out machine for steel pipe pile - Google Patents
Chuck device for press-in / pull-out machine for steel pipe pileInfo
- Publication number
- JPH076196Y2 JPH076196Y2 JP7285891U JP7285891U JPH076196Y2 JP H076196 Y2 JPH076196 Y2 JP H076196Y2 JP 7285891 U JP7285891 U JP 7285891U JP 7285891 U JP7285891 U JP 7285891U JP H076196 Y2 JPH076196 Y2 JP H076196Y2
- Authority
- JP
- Japan
- Prior art keywords
- steel pipe
- pipe pile
- press
- holding plate
- fitting
- 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.)
- Expired - Lifetime
Links
Landscapes
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は鋼管杭からなる杭列を施
工する鋼管杭圧入引抜機において、鋼管杭の圧入および
引抜きを行うチャック装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chuck device for press-fitting and withdrawing a steel pipe pile in a steel pipe pile press-fitting / pulling machine for constructing a pile row composed of steel pipe piles.
【０００２】[0002]
【従来の技術】鋼管杭圧入引抜機は既設鋼管杭列上を自
走しながら鋼管杭の圧入および引抜きを行う。図８およ
び図９に示すように、サドル１の下面に複数のクランプ
２を設けると共に、サドル１の上面には前後方向にスラ
イドするスライドベース３を設け、このスライドベース
３にマスト４を立設してなる。またマスト４の前面部分
には昇降機構５を設けている。チャック装置１０はこの
昇降機構５に固定され、鋼管杭を貫通して挿入可能なチ
ャックヘッド１１と、チャックヘッド１１内に設けられ
径方向に進退する流体圧シリンダ１２と、この流体圧シ
リンダ１２の先端部に固定され、鋼管杭の周囲を押圧し
て挟持する挟持板１３とを備えている。流体圧シリンダ
１２はその作動によって挟持板１３の挟持径を拡縮する
と共に、挟持板１３を鋼管杭の外面に押圧して挟持力を
付与する。2. Description of the Related Art A steel pipe pile press-fitting / pulling machine presses and pulls a steel pipe pile while self-propelled on an existing steel pipe pile row. As shown in FIGS. 8 and 9, a plurality of clamps 2 are provided on the lower surface of the saddle 1, and a slide base 3 that slides in the front-rear direction is provided on the upper surface of the saddle 1, and a mast 4 is erected on the slide base 3. I will do it. A lifting mechanism 5 is provided on the front surface of the mast 4. The chuck device 10 is fixed to the elevating mechanism 5, and a chuck head 11 that can be inserted through a steel pipe pile, a fluid pressure cylinder 12 that is provided in the chuck head 11 and moves back and forth in the radial direction, and a fluid pressure cylinder 12 The holding plate 13 is fixed to the tip portion and holds the steel pipe pile by pressing the periphery thereof. The fluid pressure cylinder 12 expands and contracts the holding diameter of the holding plate 13 by its operation, and presses the holding plate 13 against the outer surface of the steel pipe pile to apply a holding force.
【０００３】次に、鋼管杭圧入引抜機を使用した鋼管杭
の杭列の構築について説明する。鋼管杭Ｐ１、Ｐ２およ
びＰ３は側方に継手Ｇが設けられており、それぞれの継
手Ｇを隣接する鋼管杭Ｐ１、Ｐ２、Ｐ３の継手Ｇに互に
嵌合させながら鋼管杭を圧入し杭列を形成する。鋼管杭
圧入引抜機はクランプ２をこの既設の各鋼管杭Ｐ１、Ｐ
２、Ｐ３内に挿入し、鋼管杭の内面を押圧して鋼管杭上
に固定立設する。この状態で、新たな鋼管杭Ｐｎをクレ
ーンで吊り下げながらチャック装置１０のチャックヘッ
ド１１内に挿入し、次に流体圧シリンダ１２を作動させ
て挟持する。そして、図８に示すようにチャック装置１
０を下降させて鋼管杭Ｐｎを圧入する。この圧入は、鋼
管杭Ｐｎの上端部Ｂが鋼管杭Ｐ１、Ｐ２、Ｐ３の上端面
Ａと同一高さとなるまで行う必要がある。ところが鋼管
杭Ｐｎの圧入の最終段階では、チャック装置１０のチャ
ックヘッド１１の下端部が最前列の既設杭Ｐ３の上端に
接触するため、そのまま圧入を続行することができな
い。このため従来のチャック装置１０では、鋼管杭Ｐｎ
の圧入を一旦中断して、図９に示すようにチャック装置
１０内にヤットコＹを挿入し、このヤットコＹを挟持板
１３で挟持して再度圧入を行い杭列の高さを整えるよう
にしている。Next, the construction of a pile row of steel pipe piles using a steel pipe pile press-fitting / pulling machine will be described. The steel pipe piles P1, P2 and P3 are provided with a joint G on the side, and the steel pipe piles are press-fitted while fitting the respective joints G to the joints G of the adjacent steel pipe piles P1, P2 and P3. To form. The steel pipe pile press-in / pull-out machine uses the clamp 2 for each of the existing steel pipe piles P1 and P.
2. Insert into P3, press the inner surface of the steel pipe pile, and stand upright on the steel pipe pile. In this state, a new steel pipe pile Pn is inserted into the chuck head 11 of the chuck device 10 while being suspended by a crane, and then the fluid pressure cylinder 12 is operated to sandwich it. Then, as shown in FIG.
0 is lowered and the steel pipe pile Pn is press-fitted. This press fitting needs to be performed until the upper end portion B of the steel pipe pile Pn is at the same height as the upper end surface A of the steel pipe piles P1, P2, P3. However, at the final stage of press-fitting the steel pipe pile Pn, the lower end of the chuck head 11 of the chuck device 10 contacts the upper end of the existing pile P3 in the front row, and thus the press-fitting cannot be continued as it is. Therefore, in the conventional chuck device 10, the steel pipe pile Pn
The press-fitting of No. 1 is interrupted once, and the Yatco Y is inserted into the chuck device 10 as shown in FIG. 9, and the Yatco Y is sandwiched by the sandwiching plate 13 and press-fitted again to adjust the height of the pile row. There is.
【０００４】[0004]
【考案が解決しようとする課題】従来装置では、ヤット
コを使用するため作業が煩雑となっていた。また、ヤッ
トコは重量が大きく、その装着および撤去のいずれにお
いても、クレーン等で吊り下げおよび吊り上げる必要が
あるため、ヤットコの装着、撤去に多大の労力と時間を
費やしていた。本考案は上記事情を考慮してなされたも
のであり、面倒な作業の原因となるヤットコの使用を不
要として作業の能率向上を図ることが可能な鋼管杭圧入
引抜機のチャック装置を提供することを目的とする。In the conventional device, the work is complicated because the yatco is used. Further, since the yatco is heavy, it is necessary to suspend and hoist it with a crane or the like both when mounting and removing the yatco, so that a lot of labor and time are spent for mounting and removing the yatco. The present invention has been made in consideration of the above circumstances, and provides a chuck device for a steel pipe pile press-in / extractor capable of improving work efficiency by eliminating the need for using Yatco, which causes troublesome work. With the goal.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
本考案のチャック装置は、鋼管杭圧入引抜機の前方に昇
降自在に取り付けられたチャックヘッドと、このチャッ
クヘッド内に配置され鋼管杭外周を押圧挟持する挟持板
と、この挟持板を鋼管杭方向に進退移動させるシリンダ
とを備えたチャック装置において、前記挟持板の下端部
を延設すると共に、この延設部が鋼管杭の上端部に内接
または外接可能となっていることを特徴とする。また本
考案では、前記挟持板の下端部を延設し、この延設部に
鋼管杭を挿入可能なスリットを形成したことを特徴とす
る。In order to achieve the above object, a chuck device of the present invention comprises a chuck head which is mounted in front of a steel pipe pile press-fitting / pulling machine so as to be movable up and down, and a steel pipe pile outer periphery which is arranged in the chuck head. In a chuck device provided with a holding plate for pressing and holding the holding plate and a cylinder for moving the holding plate forward and backward in the direction of the steel pipe pile, the lower end portion of the holding plate is extended, and the extended portion is the upper end portion of the steel pipe pile. It is characterized in that it can be inscribed or circumscribed. Further, the present invention is characterized in that a lower end portion of the holding plate is extended and a slit into which a steel pipe pile can be inserted is formed in the extended portion.
【０００６】[0006]
【作用】挟持板の延設部を鋼管杭に内接または外接させ
て内側あるいは外側から押圧挟持する。この状態ではチ
ャック装置が既設の鋼管杭に干渉しないため、延設部の
長さ分だけ鋼管杭を深く圧入することができ杭列の高さ
を整えることができる。また、延設部にスリットを形成
した構成では、このスリットに鋼管杭を挿入して圧入で
きるため、同様に作用することができる。Operation: The extending portion of the sandwiching plate is inscribed or circumscribed in the steel pipe pile to press and sandwich it from the inside or outside. In this state, since the chuck device does not interfere with the existing steel pipe pile, the steel pipe pile can be deeply press-fitted by the length of the extension portion and the height of the pile row can be adjusted. Further, in the configuration in which the slit is formed in the extended portion, the steel pipe pile can be inserted and press-fitted into this slit, and therefore the same action can be achieved.
【０００７】[0007]
【実施例】図１ないし図３は本考案の第１実施例を示
し、従来技術と同一の要素は同一の符号を付してある。
本実施例のチャック装置２０は、昇降機構５に固定され
筒状に成形されたチャックヘッド２１と、このチャック
ヘッド２１の下部内側に設けた流体圧シリンダ２２と、
この流体圧シリンダ２２の先端部に取り付けた挟持板２
３からなる。流体圧シリンダ２２と挟持板２３はチャッ
クヘッド２１の円周方向に対し等間隔で８基設けられて
おり、流体圧シリンダ２２が作動して挟持板２３が進出
して鋼管杭を周囲から押圧し鋼管杭の挟持を行う。一
方、挟持板２３が退縮すると鋼管杭は挟持から解放され
る。この場合、挟持される鋼管杭の外形に合わせて、各
挟持板２３は円弧状に湾曲した形状となっている。この
挟持板２３の下端部は、チャックヘッド２１よりも所定
の長さ突出して延設部２４を形成している。こ延設部２
４の長さは新たな鋼管杭Ｐｎの圧入時にチャックヘッド
２１が鋼管杭Ｐ３と干渉せず、しかも新たな鋼管杭Ｐｎ
が既設の鋼管杭Ｐ１、Ｐ２、Ｐ３と同一高さとなるまで
圧入できる範囲となるように設定される。また、この延
設部２４の上部の外周面には段部２５が形成されてい
る。この段部２５は後述するように、新たな鋼管杭Ｐｎ
の圧入時に鋼管杭Ｐｎの上端面が当接し、挟持板２３の
滑りを防止する。1 to 3 show a first embodiment of the present invention, in which the same elements as in the prior art are designated by the same reference numerals.
The chuck device 20 of the present embodiment includes a chuck head 21 fixed to the lifting mechanism 5 and formed into a tubular shape, and a fluid pressure cylinder 22 provided inside the lower portion of the chuck head 21.
Holding plate 2 attached to the tip of this fluid pressure cylinder 22
It consists of three. Eight fluid pressure cylinders 22 and clamping plates 23 are provided at equal intervals in the circumferential direction of the chuck head 21, and the fluid pressure cylinders 22 operate so that the clamping plates 23 advance and press the steel pipe piles from the surroundings. Clamp steel pipe piles. On the other hand, when the holding plate 23 retracts, the steel pipe pile is released from the holding. In this case, each sandwiching plate 23 is curved in an arc shape according to the outer shape of the steel pipe pile to be sandwiched. A lower end portion of the sandwiching plate 23 projects from the chuck head 21 by a predetermined length to form an extended portion 24. This extension part 2
4, the chuck head 21 does not interfere with the steel pipe pile P3 when the new steel pipe pile Pn is press-fitted, and the new steel pipe pile Pn is provided.
Is set so that it can be press-fitted to the same height as the existing steel pipe piles P1, P2, P3. A step portion 25 is formed on the outer peripheral surface of the upper portion of the extended portion 24. This step portion 25 is provided with a new steel pipe pile Pn as described later.
At the time of press-fitting, the upper end surface of the steel pipe pile Pn abuts and prevents the holding plate 23 from slipping.
【０００８】次に本実施例の作用を説明する。既設の鋼
管杭Ｐ１、Ｐ２、Ｐ３に続く新たな鋼管杭Ｐｎの圧入
は、図３に示すように新たな鋼管杭Ｐｎをチャック装置
２０のチャックヘッド２１内に挿入した後、流体圧シリ
ンダ２２を作動させて挟持板２３を鋼管杭Ｐｎの周囲に
押圧して挟持する。そして、昇降機構５を作動してチャ
ック装置２０全体を下降させ、新たな鋼管杭Ｐｎを既設
の鋼管杭Ｐ３の隣接位置に圧入する。この圧入の最終段
階では、チャックヘッド２１が鋼管杭Ｐ３に接近する
が、この鋼管杭Ｐ３との干渉直前に圧入を停止する。そ
してチャック装置２０による挟持を解除してチャック装
置２０を上昇させる。その後、挟持板２３の延設部２４
が鋼管杭Ｐｎの内方に位置するように流体圧シリンダ２
２を作動し、さらに昇降機構５を作動させチャックヘッ
ド２０を下降させる。これにより挟持板２３の延設部２
４が鋼管杭Ｐｎ内に挿入される。この後、流体圧シリン
ダ２２を退縮させ挟持板２３を外方向に移動させ延設部
２４で鋼管杭Ｐｎを内側から押圧挟持する。この状態で
再び圧入を行うと、チャックヘッド２１が鋼管杭Ｐ３に
干渉することなく鋼管杭Ｐｎが圧入されるため、杭列上
端の高さを整えることができる。この再度の圧入時には
段部２５が鋼管杭Ｐｎの上端面に当接し挟持板２３の滑
りを防止するため良好な圧入力を作用させることができ
る（図１参照）。このように本実施例では、挟持板２３
の延設部分２４が鋼管杭Ｐｎを内側から挟持して圧入を
続行するため、重量の大きなヤットコが不要となり、そ
の装着、撤去の作業がなくなり作業性が向上する。Next, the operation of this embodiment will be described. The press-fitting of a new steel pipe pile Pn following the existing steel pipe piles P1, P2, P3 is performed by inserting the new steel pipe pile Pn into the chuck head 21 of the chuck device 20 and then inserting the fluid pressure cylinder 22 as shown in FIG. The clamp plate 23 is operated to press the clamp plate 23 around the steel pipe pile Pn to clamp it. Then, the elevating mechanism 5 is operated to lower the entire chuck device 20, and a new steel pipe pile Pn is press-fitted to a position adjacent to the existing steel pipe pile P3. At the final stage of this press-fitting, the chuck head 21 approaches the steel pipe pile P3, but the press-fitting is stopped immediately before the interference with the steel pipe pile P3. Then, the clamping by the chuck device 20 is released and the chuck device 20 is raised. After that, the extending portion 24 of the holding plate 23
So that it is located inside the steel pipe pile Pn.
2 is operated, and further the lifting mechanism 5 is operated to lower the chuck head 20. Thereby, the extension portion 2 of the holding plate 23
4 is inserted into the steel pipe pile Pn. Then, the fluid pressure cylinder 22 is retracted to move the holding plate 23 outward, and the extension portion 24 presses and holds the steel pipe pile Pn from the inside. When the press-fitting is performed again in this state, the steel pipe pile Pn is press-fitted without the chuck head 21 interfering with the steel pipe pile P3, so that the height of the upper end of the pile row can be adjusted. At the time of this press-fitting again, the step portion 25 comes into contact with the upper end surface of the steel pipe pile Pn to prevent the sandwiching plate 23 from slipping, so that a good press-fitting force can be applied (see FIG. 1). Thus, in this embodiment, the sandwiching plate 23
Since the extended portion 24 of the steel pipe Pn sandwiches the steel pipe pile Pn from the inside to continue the press-fitting, a heavy yatco is not required, and the work of mounting and removing the yatco is eliminated, and the workability is improved.
【０００９】図４は本考案の第２実施例を示す。この実
施例においては、挟持板２３から鋼管杭Ｐｎ方向に延び
る延設部３４にスリット２６を形成した。このスリット
２６は延設部３４の下端部から軸方向に形成されてお
り、その幅が鋼管杭Ｐｎの肉厚と同程度か、あるいはそ
れ以上となっている。このスリット２６には鋼管杭の上
端部を挿入し、この挿入状態で鋼管杭の圧入が行われ
る。また、このスリット２６との対向部位にはサブシリ
ンダ２７を配設している。サブシリンダ２７は鋼管杭の
外側から、その径方向に進退するように設けられ、スリ
ット２６内に挿入さしても同様に適用することができ
る。また本考案では、サブシリンダ２７は必須要件でな
く、省いても良い。このような構成の本実施例は流体圧
シリンダ２２によって挟持板２３を進退移動させて、そ
のスリット２６を鋼管杭Ｐｎの上端部と一致させた後、
チャックヘッド２１を下降させてスリット２６内に鋼管
杭Ｐｎの上端部を挿入することができる。そして、この
状態で最終段階の圧入を続行することにより、銅管杭Ｐ
ｎの高さを既設の鋼管杭Ｐ１、Ｐ２、Ｐ３と同一となる
ように整えることができる。この圧入時において、サブ
シリンダ２７による挟持は任意であるが、このサブシリ
ンダ２７による挟持は鋼管杭の引抜きの際に特に有効と
なっている。FIG. 4 shows a second embodiment of the present invention. In this embodiment, the slit 26 is formed in the extending portion 34 extending from the holding plate 23 in the steel pipe pile Pn direction. The slit 26 is formed in the axial direction from the lower end of the extending portion 34, and its width is about the same as or larger than the wall thickness of the steel pipe pile Pn. The upper end of the steel pipe pile is inserted into the slit 26, and the steel pipe pile is press-fitted in this inserted state. A sub-cylinder 27 is arranged at a portion facing the slit 26. The sub-cylinder 27 is provided so as to advance and retreat in the radial direction from the outside of the steel pipe pile, and the sub-cylinder 27 can be similarly applied even if it is inserted into the slit 26. Further, in the present invention, the sub-cylinder 27 is not an essential requirement and may be omitted. In this embodiment having such a structure, the clamping plate 23 is moved forward and backward by the fluid pressure cylinder 22 so that the slit 26 thereof is aligned with the upper end portion of the steel pipe pile Pn.
It is possible to lower the chuck head 21 and insert the upper end of the steel pipe pile Pn into the slit 26. Then, by continuing the press-fitting in the final stage in this state, the copper pipe pile P
The height of n can be adjusted to be the same as the existing steel pipe piles P1, P2, P3. At the time of this press-fitting, the holding by the sub-cylinder 27 is optional, but the holding by the sub-cylinder 27 is particularly effective when pulling out the steel pipe pile.
【００１０】なお、本考案の実施例は鋼管杭の圧入につ
いて説明したが、鋼管杭の引抜きに対しても同様に適用
できる。また本考案では、挟持板２３の延設部２４の内
側に段部２５を形成することができ、また段部２５を省
いても構成してもよい。さらには延設部２４により鋼管
杭の外側を挟持して圧入することもできる。すなわち図
５に示す第３実施例では段部４５を延設部４４の内側に
形成し、この延設部４４で鋼管杭Ｐｎの上端部を外側か
ら挟持することができる。また、図６、図７に示す第４
実施例のチャック装置５０は、延設部５４に段部を形成
しないものであり、上記の実施例と同様に延設部５４で
鋼管杭Ｐｎの上端部を内側あるいは外側から挟持するこ
とができる。Although the embodiment of the present invention has been described with respect to the press-fitting of the steel pipe pile, it can be similarly applied to the withdrawal of the steel pipe pile. Further, in the present invention, the step portion 25 can be formed inside the extending portion 24 of the sandwiching plate 23, and the step portion 25 may be omitted. Further, the outside of the steel pipe pile can be clamped and press-fitted by the extension portion 24. That is, in the third embodiment shown in FIG. 5, the step portion 45 is formed inside the extension portion 44, and the extension portion 44 can clamp the upper end portion of the steel pipe pile Pn from the outside. In addition, the fourth shown in FIG. 6 and FIG.
The chuck device 50 of the embodiment does not form a step in the extending portion 54, and the upper portion of the steel pipe pile Pn can be clamped from the inside or the outside by the extending portion 54 as in the above-described embodiment. .
【００１１】[0011]
【考案の効果】以上説明したように本考案は、ヤットコ
を使用することなく鋼管杭の高さを整えた圧入ができる
ため、作業が簡単となり省力化した迅速な作業が可能と
なる。As described above, according to the present invention, since the height of the steel pipe pile can be press-fitted without using a Yatco, the work is simplified and labor-saving and quick work can be performed.
【図１】本考案の第１実施例の一部断面正面図FIG. 1 is a partially sectional front view of a first embodiment of the present invention.
【図２】図１のＩＩ−ＩＩ線断面図FIG. 2 is a sectional view taken along line II-II of FIG.
【図３】第１実施例の圧入当初を示す一部断面正面図FIG. 3 is a partially sectional front view showing an initial stage of press fitting of the first embodiment.
【図４】本考案の第２実施例の要部を示す断面正面図FIG. 4 is a sectional front view showing a main part of a second embodiment of the present invention.
【図５】本考案の第３実施例の挟持状態を示す断面正面
図FIG. 5 is a sectional front view showing a sandwiched state of a third embodiment of the present invention.
【図６】本考案の第４実施例の挟持状態を示す断面正面
図FIG. 6 is a sectional front view showing a holding state of a fourth embodiment of the present invention.
【図７】本考案の第４実施例の挟持状態を示す断面正面
図FIG. 7 is a sectional front view showing a sandwiched state of a fourth embodiment of the present invention.
【図８】従来装置の一部断面正面図FIG. 8 is a partially sectional front view of a conventional device.
【図９】従来装置の作動を示す一部断面正面図FIG. 9 is a partially sectional front view showing the operation of the conventional device.
２０ チャック装置 ２１ チャックヘッド ２２ 流体圧シリンダ ２３ 挟持板 ２４ 延設部 ２５ 段部 ２６ スリット ２７ サブシリンダ ４０ チャック装置 ４４ 延設部 20 Chuck Device 21 Chuck Head 22 Fluid Pressure Cylinder 23 Clamping Plate 24 Extended Section 25 Stepped Section 26 Slit 27 Sub Cylinder 40 Chuck Device 44 Extended Section
Claims (4)
付けられたチャックヘッドと、このチャックヘッド内に
配置され鋼管杭外周を押圧挟持する挟持板と、この挟持
板を鋼管杭方向に進退移動させるシリンダとを備えたチ
ャック装置において、前記挟持板の下端部を延設すると
共に、この延設部が鋼管杭の上端部に内接または外接可
能となっていることを特徴とする鋼管杭圧入引抜機のチ
ャック装置。Claims: 1. A chuck head, which is attached to the front of a steel pipe pile press-fitting / pulling machine so as to be able to move up and down, a holding plate which is arranged in the chuck head and presses and holds the outer circumference of the steel pipe pile, and the holding plate is moved back and forth in the direction of the steel pipe pile. In a chuck device including a moving cylinder, a lower end portion of the holding plate is extended, and the extended portion can be inscribed in or inscribed in an upper end portion of the steel pipe pile. Chuck device for press-in / pull-out machine.
接する段部が形成されていることを特徴とする請求項１
記載の鋼管杭圧入引抜機のチャック装置。2. The stepped portion which is in contact with the upper end surface of the steel pipe pile is formed in the extending portion of the holding plate.
Chuck device of the steel pipe pile press-fitting and extracting machine described.
付けられたチャックヘッドと、このチャックヘッド内に
配置され鋼管杭外周を押圧挟持する挟持板と、この挟持
板を鋼管杭方向に進退移動させるシリンダとを備えたチ
ャック装置において、前記挟持板の下端部を延設し、こ
の延設部に鋼管杭を挿入可能なスリットを形成したこと
を特徴とする鋼管杭圧入引抜機のチャック装置。3. A chuck head which is mounted in front of a steel pipe pile press-fitting / pulling machine so as to be able to move up and down, a holding plate which is arranged in the chuck head and presses and holds the outer circumference of the steel pipe pile, and the holding plate is moved back and forth in the direction of the steel pipe pile. In a chuck device including a moving cylinder, a lower end portion of the holding plate is extended, and a slit into which a steel pipe pile can be inserted is formed in the extended portion. .
ットへの挿入部分を挟持するサブシリンダを設けたこと
を特徴とする請求項３記載の鋼管杭圧入引抜機のチャッ
ク装置。4. A chuck device for a press-fitting and extracting machine for a steel pipe pile according to claim 3, wherein a sub-cylinder for sandwiching a portion of the steel pipe pile to be inserted into the slit is provided in the extending portion of the sandwiching plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7285891U JPH076196Y2 (en) | 1991-06-05 | 1991-06-05 | Chuck device for press-in / pull-out machine for steel pipe pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7285891U JPH076196Y2 (en) | 1991-06-05 | 1991-06-05 | Chuck device for press-in / pull-out machine for steel pipe pile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04134544U JPH04134544U (en) | 1992-12-15 |
| JPH076196Y2 true JPH076196Y2 (en) | 1995-02-15 |
Family
ID=31930613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7285891U Expired - Lifetime JPH076196Y2 (en) | 1991-06-05 | 1991-06-05 | Chuck device for press-in / pull-out machine for steel pipe pile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH076196Y2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4694728B2 (en) * | 2001-07-19 | 2011-06-08 | 株式会社技研製作所 | Pile loading test method and loading test attachment |
| JP4431028B2 (en) | 2004-12-09 | 2010-03-10 | 株式会社技研製作所 | Occlusion member attachment and occlusion member press-fitting method |
| JP6355506B2 (en) * | 2014-09-30 | 2018-07-11 | 日本車輌製造株式会社 | Pile driver |
| JP6778031B2 (en) * | 2016-06-29 | 2020-10-28 | 株式会社技研製作所 | Pile component joint method, pile construction method, press-fitting machine, and claw member |
-
1991
- 1991-06-05 JP JP7285891U patent/JPH076196Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04134544U (en) | 1992-12-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19950801 |
|
| EXPY | Cancellation because of completion of term |