JPH0410530B2 - - Google Patents
Info
- Publication number
- JPH0410530B2 JPH0410530B2 JP21248784A JP21248784A JPH0410530B2 JP H0410530 B2 JPH0410530 B2 JP H0410530B2 JP 21248784 A JP21248784 A JP 21248784A JP 21248784 A JP21248784 A JP 21248784A JP H0410530 B2 JPH0410530 B2 JP H0410530B2
- Authority
- JP
- Japan
- Prior art keywords
- stationary
- chuck
- chuck plate
- plate
- sheet pile
- 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
Links
- 238000003825 pressing Methods 0.000 claims description 10
- 230000005484 gravity Effects 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、高周波振動杭打機によりPC矢板
（コンクリート矢板）を打ち抜きする場合に使用
するPC矢板のチヤツク装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a chuck device for PC sheet piles used when punching PC sheet piles (concrete sheet piles) with a high-frequency vibrating pile driver.
（従来の技術）
矢板は従来鋼板により製作されて来たが、近年
PC矢板も用いられるようになつて来ている。し
かし現在用いられているPC矢板用のチヤツク装
置は、PC矢板よりも薄い鋼矢板用のチヤツク装
置を改良したものであつて、PC矢板の把持面は
狭く、また、チヤツク装置を含む振動機の重心と
PC矢板の中心が一致しないために、PC板の片面
に把持力が加わつてPC矢板が破損することがあ
つた。(Conventional technology) Sheet piles have traditionally been made of steel plates, but in recent years
PC sheet piles are also coming into use. However, the currently used chuck devices for PC sheet piles are improved chuck devices for steel sheet piles, which are thinner than PC sheet piles. center of gravity and
Because the centers of the PC sheet piles did not match, a gripping force was applied to one side of the PC board, causing damage to the PC sheet piles.
（発明が解決しようとする問題点）
本発明は、PC矢板を破損無く把持できる構成
のチヤツク装置を提供しようとするものである。(Problems to be Solved by the Invention) The present invention seeks to provide a chuck device configured to grip PC sheet piles without damage.
（問題点を解決するための手段）
本発明のPC矢板用チヤツク装置は、PC矢板の
片面を受ける静止受部と、該静止受部に交換可能
に取付けられる厚さの異なる複数種類の静止チヤ
ツクプレートと、PC矢板の他の面を静止受部の
方向に向けて押し付ける押さえ装置とを有し、該
押さえ装置は、油圧シリンダにより作動するリン
クに前記静止チヤツクプレートに対向する可動チ
ヤツクプレートを枢支し、該枢支点と前記可動チ
ヤツクプレートの重心とを結ぶ線が可動チヤツク
プレートのPC板との押接面にほぼ平行となるよ
うに構成することにより、該押接面が常にほぼ鉛
直姿勢となるようにしたことを特徴とする。本発
明のチヤツク装置を用いれば、PC矢板の厚さに
相応した厚さの静止チヤツクプレートを選択する
ことにより、PC矢板を常にチヤツク装置の中心
で把持することができ、また、可動チヤツクプレ
ートのPC板との押接面が常に鉛直をなすので、
PC板を把持する際にPC面に無理な力がかかるこ
とがない。(Means for Solving the Problem) The chuck device for PC sheet piles of the present invention includes a stationary receiving part that receives one side of a PC sheet pile, and a plurality of types of stationary chucks of different thicknesses that are replaceably attached to the stationary receiving part. It has a chuck plate and a holding device that presses the other side of the PC sheet pile toward the stationary chuck plate, and the holding device includes a movable chuck facing the stationary chuck plate on a link operated by a hydraulic cylinder. By pivoting the plate and configuring the line connecting the pivot point and the center of gravity of the movable chuck plate to be approximately parallel to the pressing surface of the movable chuck plate with the PC board, the pressing surface can be improved. is characterized in that it is always in an almost vertical position. By using the chuck device of the present invention, by selecting a stationary chuck plate with a thickness that corresponds to the thickness of the PC sheet pile, the PC sheet pile can always be gripped at the center of the chuck device. Since the contact surface of the plate with the PC board is always vertical,
No excessive force is applied to the PC surface when gripping the PC board.
（実施例）
以下本発明の詳細を図面に示す実施例により説
明する。第６図は本発明のチヤツク装置１を取付
けた高周波振動杭打機２によりPC矢板３の打込
みを行なつている状態を示す。杭打機２は、クレ
ーンのブーム４の頂部からワイヤロープ５を介し
て垂下支持されるフツクブロツク６に吊り下げら
れ、フツクブロツク６に対して起振装置２Ａが振
動吸収装置２Ｂを介して垂下された構造を有す
る。本発明のチヤツク装置１は、起振装置２の下
に、両者のフランジ１Ａ，２Ｃを合わせてボル
ト、ナツトによつて結合することにより取付けら
れるもので、以下その構造を第１図ないし第３図
により説明する。(Example) The details of the present invention will be explained below using examples shown in the drawings. FIG. 6 shows a state in which a PC sheet pile 3 is being driven by a high frequency vibrating pile driver 2 equipped with a chuck device 1 of the present invention. The pile driver 2 is suspended from the top of the crane's boom 4 via a wire rope 5 to a hook block 6, and a vibration generator 2A is suspended from the hook block 6 via a vibration absorber 2B. Has a structure. The chuck device 1 of the present invention is installed under the vibrating device 2 by combining both flanges 1A and 2C with bolts and nuts. This will be explained using figures.
チヤツク装置１の枠は、前後各１枚の枠板１
ａ，１ｂを前記フランジ１Ａや両者間に架設する
横枠１ｃ，１ｄ等により結合し、またフランジ１
Ａと前後の板枠１ａ，１ｂとの間に補強板１ｅ，
１ｆを設けて補強した構造を有する。枠板１ａ，
１ｂの下部にはPC矢板３を装着する仕込み１Ｂ
を有し、該仕込み１Ｂの上端にはPC矢板３の上
端を受ける受板７をその両端を枠板１ａ，１ｂに
溶接することによつて固設し、仕込み１Ｂの片側
は枠板１ａ，１ｂ間に縦板８を介在させ溶接する
ことにより、PC矢板の静止受部を構成する。該
縦板８には適宜数のボルト穴８ａを有し、該縦板
８には、予め容易されている厚さの異なる複数種
類の静止チヤツクプレートからPC板３の厚さに
応じて選択された厚さの静止チヤツクプレート９
を、該静止チヤツクプレート９に設けた凹みを有
する挿着穴９ａに挿入したボルト１０を縦穴８の
ボルト穴８ａにねじ込むことにより固定する。 The frame of the chuck device 1 consists of two frame plates 1 each on the front and rear.
a, 1b are connected by the flange 1A, the horizontal frames 1c, 1d, etc. installed between them, and the flange 1
A reinforcing plate 1e between A and the front and rear plate frames 1a, 1b,
It has a reinforced structure with 1f. Frame board 1a,
Preparation 1B where PC sheet pile 3 is attached to the bottom of 1B
A receiving plate 7 for receiving the upper end of the PC sheet pile 3 is fixed at the upper end of the preparation 1B by welding both ends to the frame plates 1a, 1b, and one side of the preparation 1B is fixed to the frame plates 1a, 1b. By interposing and welding a vertical plate 8 between 1b, a stationary receiving part for the PC sheet pile is constructed. The vertical plate 8 has an appropriate number of bolt holes 8a, and the vertical plate 8 has a stationary chuck plate selected according to the thickness of the PC board 3 from a plurality of types of stationary chuck plates with different thicknesses prepared in advance. Stationary chuck plate 9 of thickness
is fixed by screwing a bolt 10 inserted into a recessed insertion hole 9a provided in the stationary chuck plate 9 into a bolt hole 8a of the vertical hole 8.
１１はPC矢板３を前記静止チヤツクプレート
９との間で挟持する可動チヤツクプレートであ
り、該可動チヤツクプレート１１は、以下の機構
により、静止チヤツクプレート９に対して進退可
能に取付けられる。すなわち、枠板１ａ，１ｂの
上部の片側にはピン１２を架設し、該ピン１２に
油圧シリンダ１３を枢着し、該油圧シリンダ１３
のピストンロツド１３ａを、枠板１ａ，１ｂに架
設したピン１４に枢着したリンク１５の一端にピ
ン１６により相対可動可能に連結し、該リンク１
５の他端にピン１７により可動チヤツクプレート
１１を枢着し、該可動チヤツクプレート１１の重
心Ｇとピン１７の軸心Ｏとを結ぶ線ｌが可動チヤ
ツクプレート１１のPC板３との押接面１１ａと
がほぼ平行をなすように、かつピン１７が押接面
１１ａの中心付近の高さにある構成とし、これに
よつて可動チヤツクプレート１１の位置に拘わら
ず、押接面１１ａがほぼ鉛直をなすようにする。 Reference numeral 11 denotes a movable chuck plate that holds the PC sheet pile 3 between it and the stationary chuck plate 9, and the movable chuck plate 11 is attached to the stationary chuck plate 9 so as to be movable in and out of the stationary chuck plate 9 by the following mechanism. It will be done. That is, a pin 12 is installed on one side of the upper part of the frame plates 1a and 1b, and a hydraulic cylinder 13 is pivotally connected to the pin 12.
A piston rod 13a is relatively movably connected by a pin 16 to one end of a link 15 pivotally connected to a pin 14 installed on the frame plates 1a and 1b.
A movable chuck plate 11 is pivotally attached to the other end of the movable chuck plate 11 by a pin 17, and a line l connecting the center of gravity G of the movable chuck plate 11 and the axis O of the pin 17 is connected to the PC board 3 of the movable chuck plate 11. The movable chuck plate 11 is configured so that it is almost parallel to the pressing surface 11a, and the pin 17 is located at a height near the center of the pressing surface 11a. The surface 11a is made to be approximately vertical.
この装置を用いる場合は、静止チヤツクプレー
ト９として、そのPC矢板３の受面（押接面）と
該チヤツク装置の中心線Ｓ（前記杭打機２を含め
た重心の真下になる線）との間の距離がPC板３
の厚さ2Lの半分Ｌになるようなものを選択して
ボルト１０により前記縦板８に固定し、PC矢板
３の上端面が受板７に当接するようにPC矢板３
の上端部を仕込み１Ｂに挿入し、油圧シリンダ１
３を伸長させて可動チヤツクプレート１１を仮想
線１１′に示すように押し出して押接面１１ａを
PC矢板３の面に押し当て、PC矢板３を把持す
る。 When using this device, the stationary chuck plate 9 is used to connect the receiving surface (pressing surface) of the PC sheet pile 3 and the center line S of the chuck device (the line directly below the center of gravity including the pile driver 2). The distance between
Select a piece whose thickness is half L of 2L and fix it to the vertical board 8 with bolts 10, and fix the PC sheet pile 3 so that the upper end surface of the PC sheet pile 3 is in contact with the receiving plate 7.
Insert the upper end of the cylinder into the hydraulic cylinder 1B.
3 and push out the movable chuck plate 11 as shown by the imaginary line 11' to form the pressing surface 11a.
Press it against the surface of the PC sheet pile 3 and grip the PC sheet pile 3.
このようなPC矢板の把持構造とすれば、常時
PC矢板３の中心に振動力が加わるので、第４図
に示すように、PC矢板３の中心とチヤツク装置
１の中心Ｓとが偏倚した場合の振動力ＡとPC矢
板３の反力Ｂにより生じる曲げ応力Ｃ，Ｄにより
PC矢板３が割れたりする事故の発生が防止され
る。また、第５図に示すように、可動チヤツクプ
レート１１が傾斜することがあれば、該可動チヤ
ツクプレート１１の角部がPC矢板３の面に矢印
Ｅで示すように圧接したり、可動チヤツクプレー
ト１１の移動に伴なつて矢印Ｆで示すようにPC
矢板の表面を擦動してこれを破損されるおそれが
あるが、本発明の構造では、可動チヤツクプレー
ト１１の押接面１１ａがほぼ鉛直をなすように枢
支されるので、常にPC矢印３に対して面接触と
なり、しかもピン１４が押接面１１ａの中心付近
の高さにあるので、面圧が均一となり、破損が防
止される。 With this kind of gripping structure for PC sheet piles,
Since a vibration force is applied to the center of the PC sheet pile 3, as shown in FIG. 4, the vibration force A and the reaction force B of the PC sheet pile 3 are Due to the bending stresses C and D that occur
Accidents such as cracking of the PC sheet pile 3 are prevented from occurring. Further, as shown in FIG. 5, if the movable chuck plate 11 is inclined, the corners of the movable chuck plate 11 may come into pressure contact with the surface of the PC sheet pile 3 as shown by the arrow E, or the movable chuck plate 11 may be tilted. As the chuck plate 11 moves, the PC moves as shown by arrow F.
There is a risk of the sheet pile being damaged by rubbing against the surface of the sheet pile, but in the structure of the present invention, since the pressing surface 11a of the movable chuck plate 11 is pivoted so as to be substantially vertical, the PC arrow is always 3, and since the pin 14 is located at a height near the center of the pressing surface 11a, the surface pressure is uniform and damage is prevented.
（発明の効果）
本発明によれば、振動力がPC矢板の真上から
かけることができ、かつPC矢板が面接触によつ
て把持されるので、PC矢板を破損することなく
把持することができ、さらに、PC矢板の厚さの
如何に拘わらず、これを把持することができる。(Effects of the Invention) According to the present invention, since the vibration force can be applied from directly above the PC sheet pile and the PC sheet pile is gripped by surface contact, it is possible to grip the PC sheet pile without damaging it. Furthermore, it is possible to grip PC sheet piles regardless of their thickness.
第１図は本発明によるチヤツク装置の一実施例
を示す正面図、第２図は第１図のＥ−Ｅ断面図、
第３図は第１図の右側面図、第４図および第５図
は本発明の作用説明図、第６図は該実施例のチヤ
ツク装置を取付けた杭打機を示す正面図である。
FIG. 1 is a front view showing an embodiment of a chuck device according to the present invention, FIG. 2 is a sectional view taken along line E-E in FIG.
FIG. 3 is a right side view of FIG. 1, FIGS. 4 and 5 are explanatory views of the operation of the present invention, and FIG. 6 is a front view showing a pile driver equipped with the chuck device of the embodiment.
Claims (1)
であつて、PC矢板の片面を受ける静止受部と、
該静止受部に交換可能に取付けられる厚さの異な
る複数種類の静止チヤツクプレートと、PC矢板
の他の面を静止受部の方に向けて押し付ける押さ
え装置とを有し、該押さえ装置は、油圧シリンダ
により作動するリンクに前記静止チヤツクプレー
トに対向する可動チヤツクプレートを枢支し、該
枢支点と前記可動チヤツクプレートの重心とを結
ぶ線が可動チヤツクプレートのPC板との押接面
にほぼ平行となるように構成することにより、該
押接面が常にほぼ鉛直姿勢となるようにしたこと
を特徴とするPC矢板用チヤツク装置。1. A chuck device for PC sheet piles of a high-frequency vibration pile driver, which includes a stationary receiving part that receives one side of the PC sheet pile;
The stationary chuck plate has a plurality of types of stationary chuck plates with different thicknesses that are replaceably attached to the stationary receiving part, and a holding device that presses the other side of the PC sheet pile toward the stationary receiving part, the holding device , a movable chuck plate facing the stationary chuck plate is pivotally supported by a link operated by a hydraulic cylinder, and a line connecting the pivot point and the center of gravity of the movable chuck plate is connected to the PC board of the movable chuck plate. 1. A chuck device for PC sheet piles, characterized in that the chuck device is configured to be substantially parallel to the pressing surface so that the pressing surface always has a substantially vertical posture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21248784A JPS6192216A (en) | 1984-10-12 | 1984-10-12 | Chucking device for pc sheet pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21248784A JPS6192216A (en) | 1984-10-12 | 1984-10-12 | Chucking device for pc sheet pile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6192216A JPS6192216A (en) | 1986-05-10 |
| JPH0410530B2 true JPH0410530B2 (en) | 1992-02-25 |
Family
ID=16623461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21248784A Granted JPS6192216A (en) | 1984-10-12 | 1984-10-12 | Chucking device for pc sheet pile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6192216A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5171978B2 (en) * | 2011-03-10 | 2013-03-27 | 晃栄株式会社 | Vibro hammer device |
| JP6210702B2 (en) * | 2013-04-01 | 2017-10-11 | 日本車輌製造株式会社 | Tubing device |
-
1984
- 1984-10-12 JP JP21248784A patent/JPS6192216A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6192216A (en) | 1986-05-10 |
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