JP3385417B2 - Rod connection method and rod connection pin for pile driver - Google Patents
Rod connection method and rod connection pin for pile driverInfo
- Publication number
- JP3385417B2 JP3385417B2 JP2000139109A JP2000139109A JP3385417B2 JP 3385417 B2 JP3385417 B2 JP 3385417B2 JP 2000139109 A JP2000139109 A JP 2000139109A JP 2000139109 A JP2000139109 A JP 2000139109A JP 3385417 B2 JP3385417 B2 JP 3385417B2
- Authority
- JP
- Japan
- Prior art keywords
- rod
- pin
- joint
- connecting pin
- leader
- 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 - Fee Related
Links
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Earth Drilling (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、地盤改良機等の杭
打機の掘削ロッドの連結方法及び該ロッドの連結ピンに
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for connecting excavating rods of a pile driving machine such as a ground improvement machine and a connecting pin for the rods.
【０００２】[0002]
【従来の技術】杭打機では、掘削作業の前に、図８に示
されるように、ベースマシン１前部に立設したリーダ２
の上部にロッド回転駆動装置３を引き上げ、リーダ２上
部のトップシーブ４からのワイヤロープ５にてロアロッ
ド６を吊り上げ、ロッド回転駆動装置３に装着されたア
ッパーロッド７の雌型ジョイント７ａに、ロアロッド６
上部の雄型ジョイント６ｂを嵌合し、図９に示されるよ
うに、雌型ジョイント７ａと雄型ジョイント６ｂとに形
成されたピン孔８，８に連結ピン９，９を差し込み、連
結ピン９の中央部外周に形成した溝９ａに、雌型ジョイ
ント７ａに螺着した抜け止めボルト９ｂの先端を係合さ
せて、ロアロッド６を連結している。また、アッパーロ
ッド７とロアロッド６との間に中間ロッドを継ぎ足す場
合には、アッパーロッド７とロアロッド６との連結を解
除し、アッパーロッド７をリーダ２の上部に引き上げ、
アッパーロッド７の雌型ジョイント７ａに中間ロッド上
部の雄型ジョイントを嵌合し、上記と同様に連結ピン
９，９を差し込んで、アッパーロッド７と中間ロッドと
を連結し、中間ロッド下部の雌型ジョイントにロアロッ
ド６上部の雄型ジョイント６ｂを嵌合し、両ジョイント
のピン孔に連結ピン９，９を差し込んで、中間ロッドと
ロアロッド６とを連結する。2. Description of the Related Art In a pile driving machine, as shown in FIG. 8, a leader 2 standing on the front part of a base machine 1 before excavation work.
The rod rotation driving device 3 to the upper part of the rod 2, and the lower rod 6 is hung by the wire rope 5 from the top sheave 4 above the leader 2. 6
The upper male joint 6b is fitted and, as shown in FIG. 9, the connecting pins 9 and 9 are inserted into the pin holes 8 and 8 formed in the female joint 7a and the male joint 6b. The lower rod 6 is connected by engaging the tip of a retaining bolt 9b screwed to the female joint 7a with a groove 9a formed on the outer periphery of the central portion of the lower rod 6. When an intermediate rod is added between the upper rod 7 and the lower rod 6, the connection between the upper rod 7 and the lower rod 6 is released, and the upper rod 7 is pulled up to the upper part of the leader 2.
The female joint 7a of the upper rod 7 is fitted with the male joint of the upper portion of the intermediate rod, and the connecting pins 9 and 9 are inserted in the same manner as above to connect the upper rod 7 and the intermediate rod, and the female portion of the lower portion of the intermediate rod is connected. The male joint 6b above the lower rod 6 is fitted into the mold joint, and the connecting pins 9 and 9 are inserted into the pin holes of both joints to connect the intermediate rod and the lower rod 6.
【０００３】[0003]
【発明が解決しようとする課題】ところが、上述の連結
ピン取付作業は、図１０に示されるように、作業者がリ
ーダの梯子を登ってリーダ上部で行うが、梯子に掴まっ
ての作業となるため両手を使うことができず、時間のか
かる作業となっていた。However, as shown in FIG. 10, an operator climbs the ladder of the leader and performs it on the top of the leader, as shown in FIG. 10, but the work is done by grasping the ladder. Because of this, I could not use both hands, and it was a time-consuming task.
【０００４】そこで本発明は、ロッドの連結作業を容易
にかつ安全に行える杭打機のロッド連結方法及びロッド
連結ピンを提供することを目的としている。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a rod connecting method and a rod connecting pin for a pile driver, which can easily and safely perform a rod connecting operation.
【０００５】[0005]
【課題を解決するための手段】上記した目的を達成する
ため、本発明のロッド連結方法は、リーダ上部に引き上
げられたアッパーロッド下部のジョイントに、ロアロッ
ド上部のジョイントを挿入し、両ジョイントに形成され
たピン孔に連結ピンを差し込んで両ロッドを連結する杭
打機のロッド連結方法において、リーダ上部で前記ピン
孔に仮止め用の連結ピンを差し込み、ジョイント部分を
リーダ下部に降下させてリーダ下部で仮止め用の連結ピ
ンを引き抜いて前記連結ピンを差し込むことを特徴と
し、ロッドの連結ピンは、アッパーロッド下部のジョイ
ントと、該ジョイントに嵌合されるロアロッド上部のジ
ョイントとに形成されたピン孔に差し込まれる杭打機の
ロッド連結ピンにおいて、前記ピン孔に差し込まれるピ
ン軸と、前記いずれかのジョイントの外壁に弾接する抜
け止め係止片と、ピン軸と抜け止め係止片とを連結する
連結部と、把手とを備えたことを特徴としている。In order to achieve the above-mentioned object, the rod connecting method of the present invention is such that the lower rod upper joint is inserted into the upper rod lower joint pulled up to the leader upper portion, and the lower rod upper joint is formed in both joints. In the rod connecting method of the pile driver, which inserts the connecting pin into the pin hole, and connects both rods, insert the connecting pin for temporary fixing into the pin hole at the upper part of the leader and lower the joint part to the lower part of the leader. It is characterized in that the connecting pin for temporary fixing is pulled out at the lower part and the connecting pin is inserted, and the connecting pin of the rod is formed at the joint of the upper rod lower part and the joint of the lower rod upper part fitted to the joint. In a rod connecting pin of a pile driver inserted into a pin hole, a pin shaft inserted into the pin hole, And the outer wall bullet contacts the retaining locking piece of the joint of the connecting portion connecting the locking engaging piece missing and the pin shaft, is characterized in that a handle.
【０００６】[0006]
【発明の実施の形態】以下、本発明を、図面に示す実施
形態例に基づいて、さらに詳細に説明する。なお、前記
従来例と同一要素には同一の符号を付して説明する。ロ
ッド回転駆動装置３に装着されたアッパーロッド７は、
地盤改良材を注入するためのスイベルジョイント１１が
上端に連結される中空体で、下部の雌型ジョイント７ａ
は、外形を断面６角形に形成され、内側に断面６角形の
ジョイント孔を有している。ロアロッド６も中空体で、
上部の雄型ジョイント６ｂは、雌型ジョイント７ａのジ
ョイント孔に嵌合するよう外形を断面６角形に形成され
ている。BEST MODE FOR CARRYING OUT THE INVENTION The present invention will now be described in more detail based on the embodiments shown in the drawings. The same elements as those of the conventional example will be described with the same reference numerals. The upper rod 7 attached to the rod rotation drive device 3 is
A swivel joint 11 for injecting ground improvement material is a hollow body connected to the upper end, and a lower female joint 7a
Has a hexagonal cross section, and has a joint hole having a hexagonal cross section inside. The lower rod 6 is also a hollow body,
The upper male joint 6b has a hexagonal cross section so as to fit into the joint hole of the female joint 7a.
【０００７】雌型ジョイント７ａに貫通形成されたピン
孔８，８は、雌型ジョイント７ａの外壁からジョイント
孔の対向する内壁に形成される断面円弧状の溝８ａ，８
ａと、雄型ジョイント６ｂの対向する外壁に形成される
断面円弧状の溝８ｂ，８ｂとでそれぞれ構成されてい
る。The pin holes 8 and 8 penetratingly formed in the female joint 7a are grooves 8a and 8 having an arcuate cross section formed from the outer wall of the female joint 7a to the inner wall facing the joint hole.
a and grooves 8b, 8b having an arcuate cross section formed on the outer walls of the male joint 6b facing each other.
【０００８】アッパーロッド７とロアロッド６との仮止
め用の連結ピン１０は、ピン孔８，８に差し込まれるピ
ン軸１０ａ，１０ａと、前記雌型ジョイント７ａの外壁
に弾接する抜け止め係止片１０ｂ，１０ｂと、ピン軸１
０ａ，１０ａと抜け止め係止片１０ｂ，１０ｂとを連結
する連結部１０ｃと、把手１０ｄとを備えている。A connecting pin 10 for temporarily fixing the upper rod 7 and the lower rod 6 comprises a pin shaft 10a, 10a inserted into the pin hole 8, 8, and a retaining locking piece which elastically contacts the outer wall of the female joint 7a. 10b, 10b and pin shaft 1
The handle 10d is provided with a connecting portion 10c for connecting the retaining lock pieces 10b and 10b to the retaining locks 0a and 10a.
【０００９】次にこの仮止め用の連結ピン１０を用いた
ロッド連結方法を説明する。ベースマシン１前部に立設
したリーダ２の上部にロッド回転駆動装置３を引き上
げ、リーダ２上部のトップシーブ４からのワイヤロープ
５にてロアロッド６を吊り上げ、アッパーロッド７の雌
型ジョイント７ａにロアロッド６上部の雄型ジョイント
６ｂを嵌合し、図４に示されるように、作業者が仮止め
用の連結ピン１０を持ってリーダ２の梯子を登り、仮止
め用の連結ピン１０の把手１０ｄを片手で持って、図３
に示されるように、ピン孔８，８にピン軸１０ａ，１０
ａを差し込み、抜け止め係止片１０ｂ，１０ｂを雌型ジ
ョイント７ａの外壁に係止させる。これにより、アッパ
ーロッド７とロアロッド６が仮連結される。Next, a rod connecting method using the connecting pin 10 for temporary fixing will be described. The rod rotation drive device 3 is pulled up above the leader 2 standing upright on the front part of the base machine 1, and the lower rod 6 is hung up with the wire rope 5 from the top sheave 4 above the leader 2, and is attached to the female joint 7a of the upper rod 7. The male joint 6b at the upper part of the lower rod 6 is fitted, and as shown in FIG. 4, the worker holds the connecting pin 10 for temporary fixing and climbs the ladder of the reader 2 to grasp the connecting pin 10 for temporary fixing. Holding 10d with one hand,
, The pin shafts 10a, 10
a is inserted, and the retaining locking pieces 10b, 10b are locked to the outer wall of the female joint 7a. As a result, the upper rod 7 and the lower rod 6 are temporarily connected.
【００１０】続いて、ロアロッド６下部の雌型ジョイン
ト６ａに掘削具１２を取り付け、掘削作業を開始する。
作業の進行に連れてアッパーロッド７とロアロッド６の
ジョイント部分がリーダ２下部へ降下したら、図６に示
されるように、地上の作業者が仮止め用の連結ピン１０
を引き抜き、図９に示される従来例と同様に、正規の連
結ピン９，９をピン孔８，８に差し込み、雌型ジョイン
ト７ａに抜け止めボルト９ｂを螺着して、抜け止めボル
ト９ｂの先端を連結ピン９の溝９ａに係合させて、連結
ピン９，９の抜け止めをする。これにより、雌型ジョイ
ント７ａの外壁から突出しない連結ピン９，９でアッパ
ーロッド７とロアロッド６が連結されるので、以後本格
的な掘削作業を行う。Then, the excavator 12 is attached to the female joint 6a under the lower rod 6 to start excavation work.
When the joint portion of the upper rod 7 and the lower rod 6 descends to the lower portion of the leader 2 as the work progresses, as shown in FIG. 6, a worker on the ground temporarily connects the connecting pin 10
9, the regular connecting pins 9 and 9 are inserted into the pin holes 8 and 8, and the retaining bolt 9b is screwed into the female joint 7a to remove the retaining bolt 9b, as in the conventional example shown in FIG. The leading end is engaged with the groove 9a of the connecting pin 9 to prevent the connecting pins 9, 9 from coming off. As a result, the upper rod 7 and the lower rod 6 are connected by the connecting pins 9 and 9 that do not project from the outer wall of the female joint 7a, so that a full-scale excavation work is performed thereafter.
【００１１】また、 ロアロッド６を取り外す際には、
上記とは逆に、ジョイント部分をリーダ２下部へ降下さ
せ、地上の作業者が連結ピン９，９を引き抜いて、仮止
め用の連結ピン１０を差し込み、掘削ロッド６にワイヤ
ロープ５を掛けた後、ジョイント部分をリーダ２の上部
へ引き上げ、作業者がリーダ２の梯子を登り、仮止め用
の連結ピン１０の把手１０ｄを片手で持って引き抜く。When removing the lower rod 6,
Contrary to the above, the joint part is lowered to the lower part of the leader 2, the ground worker pulls out the connecting pins 9 and 9, the connecting pin 10 for temporary fixing is inserted, and the wire rope 5 is hung on the excavating rod 6. After that, the joint portion is pulled up to the upper part of the leader 2, and the worker climbs the ladder of the leader 2 and holds the handle 10d of the connecting pin 10 for temporary fixing with one hand and pulls it out.
【００１２】アッパーロッド７とロアロッド６との間に
中間ロッドを継ぎ足す場合も、リーダ２上部でのアッパ
ーロッド７と中間ロッドとの連結に仮止め用の連結ピン
１０を使用し、アッパーロッド７と中間ロッドのジョイ
ント部分がリーダ２下部へ降下したら、地上の作業者が
仮止め用の連結ピン１０を引き抜き、正規の連結ピン
９，９で連結する。Even when an intermediate rod is added between the upper rod 7 and the lower rod 6, a connecting pin 10 for temporary fixing is used to connect the upper rod 7 and the intermediate rod at the upper part of the leader 2, and the upper rod 7 When the joint part of the intermediate rod descends to the lower part of the leader 2, a worker on the ground pulls out the connecting pin 10 for temporary fixing and connects it with the regular connecting pins 9, 9.
【００１３】このように、リーダ２上部でのピン着脱作
業を片手で操作可能な仮止め用の連結ピン１０で行い、
正規の連結ピン９，９の着脱作業を地上で行うから、ロ
ッドの連結作業が容易になる。In this manner, the pin attaching / detaching work on the upper portion of the reader 2 is performed by the temporary connecting pin 10 which can be operated with one hand
Since the attachment / detachment work of the regular connecting pins 9, 9 is performed on the ground, the connecting work of the rods becomes easy.
【００１４】なお、上記実施形態例では、アッパーロッ
ド７に雌型ジョイントを、ロアロッド６に雄型ジョイン
トをそれぞれ設けたもので説明したが、アッパーロッド
７に雄型ジョイントを、ロアロッド６に雌型ジョイント
を設けたものでもよい。In the above-described embodiment, the upper rod 7 is provided with the female joint and the lower rod 6 is provided with the male joint. However, the upper rod 7 is provided with the male joint and the lower rod 6 is provided with the female joint. It may be provided with a joint.
【００１５】[0015]
【発明の効果】以上説明したように、本発明のロッド連
結方法は、リーダ上部で雌型ジョイントと雄型ジョイン
トに形成されたピン孔に仮止め用の連結ピンを差し込
み、ジョイント部分をリーダ下部に降下させてリーダ下
部で仮止め用の連結ピンを引き抜いて正規の連結ピンを
差し込むので、正規の連結ピンの着脱作業を地上で行え
るから、ロッドの連結作業を容易にかつ安全に行える。
また、仮止め用の連結ピンを、ピン孔に差し込まれるピ
ン軸と、雌型ジョイントの外壁に弾接する抜け止め係止
片と、ピン軸と抜け止め係止片とを連結する連結部と、
把手とを有する構成としたので、片手での操作が可能と
なり、作業者がリーダの梯子を登って容易にピン孔に装
着できる。As described above, according to the rod connecting method of the present invention, a connecting pin for temporary fixing is inserted into the pin hole formed in the female joint and the male joint at the upper portion of the leader, and the joint portion is connected to the lower portion of the leader. Since the connecting pin for temporary fixing is pulled out at the lower part of the leader and the regular connecting pin is inserted, the regular connecting pin can be attached and detached on the ground, so the rod connecting work can be performed easily and safely.
In addition, a connecting pin for temporary fixing, a pin shaft that is inserted into the pin hole, a retaining engagement piece that elastically contacts the outer wall of the female joint, and a connecting portion that connects the pin shaft and the retaining engagement piece,
Since it has a handle, it can be operated with one hand, and an operator can easily climb the ladder of the leader and attach it to the pin hole.
【図１】 仮止め用の連結ピンの斜視図FIG. 1 is a perspective view of a connecting pin for temporary fixing.
【図２】 仮止め用の連結ピンの装着状態の正面図FIG. 2 is a front view of a mounting state of a connecting pin for temporary fixing.
【図３】 図２のＩＩＩ−ＩＩＩ断面図3 is a sectional view taken along line III-III in FIG.
【図４】 仮止め用の連結ピンを装着する作業の説明図FIG. 4 is an explanatory view of a work for mounting a connecting pin for temporary fixing.
【図５】 仮止め状態のロアロッドに掘削具を取り付け
た杭打機の側面図FIG. 5 is a side view of the pile driver with the excavator attached to the lower rod in the temporarily fixed state.
【図６】 仮止め用の連結ピンを引き抜いて正規の連結
ピンを差し込む作業の説明図FIG. 6 is an explanatory view of the work of pulling out the temporary fixing connecting pin and inserting the regular connecting pin.
【図７】 正規の連結ピンでロアロッドを連結した杭打
機の側面図FIG. 7 is a side view of a pile driver in which lower rods are connected by regular connecting pins.
【図８】 ロアロッドの吊り込み作業を示す杭打機の側
面図FIG. 8 is a side view of the pile driver showing the lower rod hanging operation.
【図９】 正規の連結ピンで連結した状態の断面図FIG. 9 is a cross-sectional view showing a state in which a regular connecting pin is used for connection.
【図１０】 従来のリーダ上部での連結作業の説明図FIG. 10 is an explanatory view of a conventional connecting operation at the upper part of the reader.
１…ベースマシン、２…リーダ、３…ロッド回転駆動装
置、６…ロアロッド、６ｂ…雄型ジョイント、７…アッ
パーロッド、７ａ…雌型ジョイント、８…ピン孔、９…
正規の連結ピン、１０…仮止め用の連結ピン、１０ａ…
ピン軸、１０ｂ…抜け止め係止片、１０ｃ…連結部、１
０ｄ…把手1 ... Base machine, 2 ... Leader, 3 ... Rod rotation driving device, 6 ... Lower rod, 6b ... Male joint, 7 ... Upper rod, 7a ... Female joint, 8 ... Pin hole, 9 ...
Regular connecting pin, 10 ... Connecting pin for temporary fixing, 10a ...
Pin shaft, 10b ... retaining piece, 10c ... connecting part, 1
0d ... Handle
フロントページの続き (56)参考文献 特開 平10−317422（ＪＰ，Ａ) 特開 平５−52086（ＪＰ，Ａ) 特開 平９−177806（ＪＰ，Ａ) 特開2000−265492（ＪＰ，Ａ) 特開 平７−180465（ＪＰ，Ａ) 実開 昭64−10591（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) E02D 3/12 102 E21B 17/04 Continuation of the front page (56) Reference JP-A-10-317422 (JP, A) JP-A-5-52086 (JP, A) JP-A-9-177806 (JP, A) JP-A-2000-265492 (JP, A) Japanese Unexamined Patent Publication No. 7-180465 (JP, A) Actually developed 64-10591 (JP, U) (58) Fields investigated (Int.Cl. 7 , DB name) E02D 3/12 102 E21B 17/04
Claims (2)
ッド下部のジョイントに、ロアロッド上部のジョイント
を嵌合し、両ジョイントに形成されたピン孔に連結ピン
を差し込んで両ロッドを連結する杭打機のロッド連結方
法において、リーダ上部で前記ピン孔に仮止め用の連結
ピンを差し込み、ジョイント部分をリーダ下部に降下さ
せて仮止め用の連結ピンを引き抜いて前記連結ピンを差
し込むことを特徴とする杭打機のロッド連結方法。1. A pile driving machine for connecting both rods by fitting a joint on an upper rod lower part to a joint on an upper rod lower part pulled up to a leader upper part and inserting a connecting pin into pin holes formed in both joints. In the rod connecting method, a connecting pin for temporary fixing is inserted into the pin hole at the upper part of the leader, the joint part is lowered to the lower part of the leader, the connecting pin for temporary fixing is pulled out, and the connecting pin is inserted. How to connect rods to a hammer.
ジョイントに嵌合されるロアロッド上部のジョイントと
に形成されたピン孔に差し込まれる杭打機のロッド連結
ピンにおいて、前記ピン孔に差し込まれるピン軸と、前
記いずれかのジョイントの外壁に弾接する抜け止め係止
片と、ピン軸と抜け止め係止片とを連結する連結部と、
把手とを備えたことを特徴とする杭打機のロッド連結ピ
ン。2. A rod connecting pin of a pile driver inserted into a pin hole formed in a joint at a lower portion of an upper rod and a joint at an upper portion of a lower rod fitted to the joint, wherein a pin shaft inserted into the pin hole. A retaining locking piece that elastically contacts the outer wall of any one of the joints, and a connecting portion that connects the pin shaft and the retaining locking piece,
A rod connecting pin for a pile driver, which is provided with a handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000139109A JP3385417B2 (en) | 2000-05-11 | 2000-05-11 | Rod connection method and rod connection pin for pile driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000139109A JP3385417B2 (en) | 2000-05-11 | 2000-05-11 | Rod connection method and rod connection pin for pile driver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001317040A JP2001317040A (en) | 2001-11-16 |
| JP3385417B2 true JP3385417B2 (en) | 2003-03-10 |
Family
ID=18646612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000139109A Expired - Fee Related JP3385417B2 (en) | 2000-05-11 | 2000-05-11 | Rod connection method and rod connection pin for pile driver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3385417B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6219698B2 (en) * | 2013-11-28 | 2017-10-25 | 株式会社トーヨーアサノ | Joint pin fall-off prevention method and joint structure at the excavation equipment joint part of the pile driver |
-
2000
- 2000-05-11 JP JP2000139109A patent/JP3385417B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001317040A (en) | 2001-11-16 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |