JPH0211462Y2 - - Google Patents

Description

【考案の詳細な説明】 この考案は、建設工事で使用した仮設杭を引抜
くための装置に関する。[Detailed description of the invention] This invention relates to a device for pulling out temporary piles used in construction work.

地下を有する建築工事では仮設用桟橋を設置す
ることが多い。その桟橋や土留用切梁を支えるた
めに多くの仮設杭が打設されている。その仮設杭
は地上階建設前に引抜かれることが望ましいが、
現状は工期、敷地条件、適用工法等により上部躯
体が引抜きに先行することが多い。従つて仮設杭
をそつくり引抜くことができることは少ない。そ
こで、上部空間の制限されたなかで、短かく分割
して回収している。 Temporary piers are often installed in construction projects that involve underground areas. Many temporary piles have been driven to support the pier and earth retaining struts. It is desirable that the temporary piles be pulled out before construction of the ground floor.
Currently, depending on the construction period, site conditions, applicable construction methods, etc., the upper frame is often pulled out first. Therefore, it is rare that temporary piles can be made and pulled out. Therefore, within the limited upper space, we divide it into short pieces and collect them.

しかし、従来の仮設杭の引抜きは、第１図ない
し第４図に示すように作業工数が多く、かつ作業
人員も多く必要であつた。第１図では、仮設杭ａ
をスラブｂを反力としてジヤツキｇ又はウインチ
により引抜き、地盤との縁切りを行つている。こ
の作業は通常鳶工２名で行なう。第２図において
は、仮設杭ａの上端と上部スラブに滑車ｃをセツ
トし、ウインチｄにより出来るだけ引抜く。第３
図においては、仮設杭のスラブレベルに貫通孔を
あけ、カンザシｅを通し、ウインチｄをゆるめて
荷重をあずける。カンザシの上部で仮設杭を切断
し、切断杭を倒して外部へ搬出する。第４図にお
いて、再び残りの仮設杭の上部に滑車ｆを取付け
て第３図のように引抜きをする。通常第２図ない
し第４図の作業は、鳶工２名、切断工１名で行な
われ、さらに途中階で見はりおよび養生が必要で
あり、作業能率が悪かつた。 However, the conventional method of pulling out temporary piles requires a large number of man-hours and a large number of workers, as shown in FIGS. 1 to 4. In Figure 1, temporary pile a
The slab b is used as a reaction force to pull it out using jacks g or a winch to cut the edge of the slab from the ground. This work is usually carried out by two carpenters. In Fig. 2, a pulley c is set on the upper end of the temporary pile a and the upper slab, and a winch d is used to pull it out as much as possible. Third
In the figure, a through hole is drilled at the slab level of the temporary pile, a kanzashi (e) is passed through it, and the winch (d) is loosened to transfer the load. The temporary pile will be cut at the top of the Kanzashi tree, the cut pile will be knocked down, and it will be carried outside. In FIG. 4, the pulley f is again attached to the top of the remaining temporary pile and pulled out as shown in FIG. Normally, the work shown in Figures 2 to 4 was carried out by two carpenters and one cutter, and additionally, sawing and curing were required at intermediate floors, resulting in poor work efficiency.

本考案の目的は、仮設杭の縁切り、引抜き作業
を能率よく行なえるようにするとともに、引抜き
のための滑車等をスラブに取付けなくとも仮設杭
の引抜きができるようにして、仮設杭の切断長さ
を大きくとれるようにすることである。 The purpose of this invention is to make it possible to efficiently cut the edges of temporary piles and pull them out, and also to make it possible to pull out temporary piles without attaching pulleys or the like to the slab. The aim is to make it possible to increase the strength.

次に図面により本考案の仮設杭の引抜装置を説
明する。引抜装置の架台１は、下面に車輪２を設
けられてスラブ３上の移動可能な走行台１′に載
置される。架台１および走行台１′の側部中央に
仮設杭４を貫通させる通孔５が設けられる。通孔
５は側方に開口し、通孔５を仮設杭４が貫通する
よう走行台１′を設置した後、図に記さない保持
杆により通孔５の開口を適宜閉鎖し得る。走行台
１′の前後端にジヤツキ６を設けて、伸長したと
きに架台１が走行台の車輪２を介することなくス
ラブ３上に反力をとれるようにする。なお、架台
１に下方に張り出し可能な支持脚を設け、架台１
の支持脚をスラブ３上に張り出して架台１が走行
１′を介することなく、スラブ３上に反力をとれ
るようにしてもよい。 Next, the temporary pile extraction device of the present invention will be explained with reference to the drawings. A pedestal 1 of the extraction device is provided with wheels 2 on its lower surface and placed on a movable carriage 1' on a slab 3. A through hole 5 through which the temporary pile 4 passes is provided at the center of the side of the frame 1 and the traveling platform 1'. The through hole 5 is opened laterally, and after the carriage 1' is installed so that the temporary pile 4 passes through the through hole 5, the opening of the through hole 5 can be closed as appropriate with a holding rod (not shown). Jacks 6 are provided at the front and rear ends of the traveling platform 1' so that when the platform 1 is extended, a reaction force can be taken on the slab 3 without passing through the wheels 2 of the traveling platform. Note that the pedestal 1 is provided with support legs that can extend downward, and the pedestal 1
The supporting legs may be extended over the slab 3 so that the reaction force can be taken on the slab 3 without the gantry 1 passing through the travel 1'.

架台１上に仮設杭４の縁切りのための昇降装置
７を設け、該昇降装置７は通孔５の前後位置にそ
れぞれジヤツキ８が設けられて成る。 A lifting device 7 for cutting the edge of the temporary pile 4 is provided on the frame 1, and the lifting device 7 includes jacks 8 at the front and rear positions of the through hole 5, respectively.

各ジヤツキ８上には、通孔５の上方に対峙する
保持装置９が設けられ、引抜き中の仮設杭４の落
下を防止する。保持装置９は偏心摩擦部材１０が
揺動可能に基枠１１に軸着され、該偏心摩擦部材
１０は上方より下方に向つて半径を小に形成さ
れ、また上方より仮設杭４に向つてシリンダ１３
により押動されることにより、仮設杭４の上昇を
許すが、下降は摩擦により許さない。なお、偏心
摩擦部材１０は、仮設杭４に対する面を歯溝に形
成してもよい。基枠１１は、昇降装置７のジヤツ
キ８に取付けた基台１２上を横方向に摺動でき、
その摺動は基枠１１と基台１２間に設けたシリン
ダ１４によりなされる。一対の保持装置９におけ
るそれぞれのシリンダ１４は、それらシリンダ内
の前室が互いに連通されるとともに、互いに後室
も連通され、加圧制御装置ｐによりそれらが加圧
されて、仮設杭の引抜き中の傾きに追従して同一
押圧力で仮設杭４を挟持できる。 A holding device 9 is provided on each jack 8 and faces above the through hole 5 to prevent the temporary pile 4 from falling during extraction. In the holding device 9, an eccentric friction member 10 is pivotally attached to a base frame 11 in a swingable manner, and the eccentric friction member 10 is formed so that the radius becomes smaller from the top toward the bottom, and the radius of the eccentric friction member 10 becomes smaller from the top toward the temporary pile 4. 13
The temporary pile 4 is allowed to rise by being pushed, but is not allowed to fall due to friction. Note that the surface of the eccentric friction member 10 that faces the temporary pile 4 may be formed into a tooth groove. The base frame 11 can slide laterally on a base 12 attached to the jack 8 of the lifting device 7,
The sliding movement is performed by a cylinder 14 provided between the base frame 11 and the base 12. The front chambers of the cylinders 14 in the pair of holding devices 9 are communicated with each other, and the rear chambers are also communicated with each other, and they are pressurized by the pressure control device p, so that the temporary pile is being pulled out. The temporary pile 4 can be clamped with the same pressing force following the inclination of .

各保持装置９上には、仮設杭４の引上装置１５
が設けられ、この一対の引上装置１５は保持装置
と同様に通孔５の上方に対峙する。引上装置の基
枠１６に、引上ギヤ１７が回転駆動装置１８によ
り回転可能に設けられ、該基枠１６は保持装置の
基枠１１上に取付けた基台１９上を横方向に摺動
可能とされ、基枠１６と基台１９との間に設けた
シリンダ２０により引上ギヤ１７が仮設杭４に押
圧される。各引上装置におけるシリンダ２０は、
保持装置９の場合と同様に、互いの前室が連通さ
れ、かつ互いの後室も連通され、それらは加圧制
御装置p′に連通されて、仮設杭の傾き等があつて
も同一押圧力で追従できるようにつている。 On each holding device 9, a pulling device 15 for the temporary pile 4 is provided.
are provided, and the pair of lifting devices 15 face each other above the through hole 5 similarly to the holding device. A lifting gear 17 is rotatably provided on a base frame 16 of the lifting device by a rotary drive device 18, and the base frame 16 slides laterally on a base 19 mounted on the base frame 11 of the holding device. The pulling gear 17 is pressed against the temporary pile 4 by the cylinder 20 provided between the base frame 16 and the base 19. The cylinder 20 in each pulling device is
As in the case of the holding device 9, the front chambers of each other are communicated with each other, and the rear chambers of each other are also communicated with each other, and these are communicated with the pressure control device p', so that even if the temporary pile is tilted, the same pressure can be maintained. It is attached so that it can be followed by pressure.

架台１の後部上に支柱２２が起立され、該支柱
２２に支柱回りを旋回し得る旋回装置２３を設
け、該旋回装置２３に設けたピニオン２４が支柱
に設けたラツク２５に沿つて回転されることによ
り昇降できるが、この昇降はワイヤと滑車とを利
用して行つてもよい。旋回装置２３に横方向に張
り出した回転装置２６を設け、該回転装置の先端
に仮設杭の掴み装置２７を設け、引抜いた仮設杭
を横転させて走行台上に載置できるようになつて
いる。なお、回転装置２６と旋回装置２３とはモ
ータ等の回転駆動装置により回転され、掴み装置
２７は一体の掴みが軸支部を回転中心に開閉でき
るようにしたものである。 A column 22 is erected on the rear part of the pedestal 1, and the column 22 is provided with a rotating device 23 that can rotate around the column, and a pinion 24 provided on the rotating device 23 is rotated along a rack 25 provided on the column. It can be raised and lowered by using wires and pulleys. The rotating device 23 is provided with a rotating device 26 projecting laterally, and a temporary pile gripping device 27 is provided at the tip of the rotating device, so that the pulled out temporary pile can be rolled over and placed on a running platform. . Note that the rotating device 26 and the turning device 23 are rotated by a rotation drive device such as a motor, and the gripping device 27 is an integrated grip that can open and close around a shaft support.

本考案の仮設杭の引抜装置は上記の通り構成さ
れ、仮設杭を引抜くときは、架台１を仮設杭４の
位置に移動し、仮設杭を通孔５内に位置させ、ジ
ヤツキ６の伸長により架台反力がスラブで受けら
れるようにする。そして保持装置９のシリンダ１
４を伸長操作して仮設杭４を挟持し、昇降装置７
のジヤツキ８を伸長して仮設杭を引上げ縁切りを
する。次に引上装置１５のシリンダ２０を操作し
て、引上ギヤ１７を仮設杭１４に押圧し、さらに
引上ギヤを回転させることにより仮設杭を引抜
く。 The temporary pile extraction device of the present invention is constructed as described above, and when pulling out a temporary pile, the frame 1 is moved to the position of the temporary pile 4, the temporary pile is positioned in the through hole 5, and the jack 6 is extended. This allows the reaction force of the pedestal to be received by the slab. and cylinder 1 of holding device 9
4 is extended to hold the temporary pile 4, and the lifting device 7
Extend the jack 8 to pull up the temporary pile and cut the edge. Next, the cylinder 20 of the pulling device 15 is operated to press the pulling gear 17 against the temporary pile 14, and the pulling gear is further rotated to pull out the temporary pile.

この後、昇降装置７を下降して、仮設杭４をス
ラブ間の階高分の長さで切断し、掴み装置２７で
掴み、さらに旋回装置２３および回転装置２６で
横転、旋回し、旋回装置２３を下降させて切断し
た仮設杭を走行台１′上に載置する。さらに、仮
設杭を引抜くときは前記と同様の作用をすればよ
い。 After that, the lifting device 7 is lowered, the temporary pile 4 is cut to the length of the floor height between the slabs, is gripped by the gripping device 27, and is further rotated and turned by the turning device 23 and the rotating device 26. 23 is lowered and the cut temporary pile is placed on the traveling platform 1'. Furthermore, when pulling out the temporary pile, the same action as described above may be performed.

以上の通り本考案においては、架台上に仮設杭
の縁切りのための昇降装置と、落下防止のための
保持装置と、引上げのための引上装置とを設けて
いるので、従来のように上方スラブに滑車等を設
けることなく、小人数で迅速にかつ容易に仮設杭
を引抜くことができ、しかも従来のように滑車を
使用した場合より仮設杭の切断長さを大きくで
き、再利用に好都合となる。 As described above, in the present invention, a lifting device for cutting the edge of the temporary pile, a holding device to prevent it from falling, and a lifting device for pulling it up are provided on the pedestal. Temporary piles can be pulled out quickly and easily by a small number of people without installing pulleys on the slab, and the cut length of temporary piles can be made larger than when pulleys are used in the past, making it easier to reuse. It becomes convenient.

また仮設杭の引抜中でも、保持装置が設けられ
ているので誤つて引抜き中の仮設杭が落下するこ
となく、安全に引抜き作業ができる。 Further, even when the temporary pile is being pulled out, since the holding device is provided, the temporary pile being pulled out will not fall by mistake, and the pulling operation can be carried out safely.

さらに引抜き切断した仮設杭は横転、旋回装置
により迅速かつ容易に走行台上に載置でき、作業
性がよい。 Furthermore, the pulled and cut temporary piles can be quickly and easily placed on a traveling platform using a rolling and turning device, resulting in good workability.

【図面の簡単な説明】[Brief explanation of drawings]

第１図ないし第４図は従来の仮設杭の引抜状況
を段階的に示す概略説明図、第５図は本考案の引
抜装置の全体側面図、第６図は第５図における保
持装置の平面図、第７図は第５図における引上装
置の平面図、第８図は第５図における横転、旋回
装置の平面図である。 １……架台、４……仮設杭、７……昇降装置、
９……保持装置、１０……偏心摩擦部材、１５…
…引上装置、１７……引上ギヤ、２３……旋回装
置、２７……掴み装置。 Figures 1 to 4 are schematic explanatory diagrams showing the conventional method of pulling out temporary piles in stages, Figure 5 is an overall side view of the pulling device of the present invention, and Figure 6 is a plan view of the holding device in Figure 5. 7 is a plan view of the pulling device in FIG. 5, and FIG. 8 is a plan view of the rolling and turning device in FIG. 5. 1... Frame, 4... Temporary pile, 7... Lifting device,
9... Holding device, 10... Eccentric friction member, 15...
... Pulling device, 17... Pulling gear, 23... Swivel device, 27... Gripping device.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 移動可能な架台に仮設杭を貫通させる通孔を設
けるとともに架台上に昇降装置を設け、該貫通孔
の上方に対峙させて配した一対の保持装置をその
昇降装置上に設け、該保持装置は引抜き中の仮設
杭の落下を防止するようシリンダにより付勢され
た偏心摩擦部材を有し、該保持装置のそれぞれの
上方に引上装置を設け、該引上装置は駆動装置に
より回転される引上ギヤを仮設杭に押圧可能に設
け、また架台上適所に支柱を設け、該支柱には引
抜いた仮設杭を掴んで横転しおよび旋回し得るよ
うにした仮設杭の横転旋回装置を昇降可能に設け
たことを特徴とする仮設杭の引抜装置。 A movable pedestal is provided with a through hole through which the temporary pile passes, and a lifting device is provided on the mount, and a pair of holding devices are provided on the lifting device and are arranged facing each other above the through hole. It has an eccentric friction member biased by a cylinder to prevent the temporary pile from falling during extraction, and a lifting device is provided above each of the holding devices, and the pulling device is a pulling device rotated by a drive device. An upper gear is provided so as to be able to be pressed against the temporary pile, and a support is provided at an appropriate position on the pedestal, and a temporary pile rolling and turning device is installed on the support that can grip the pulled out temporary pile and roll it sideways and turn it. A device for pulling out temporary piles.