JPH022797Y2 - - Google Patents
Info
- Publication number
- JPH022797Y2 JPH022797Y2 JP6616983U JP6616983U JPH022797Y2 JP H022797 Y2 JPH022797 Y2 JP H022797Y2 JP 6616983 U JP6616983 U JP 6616983U JP 6616983 U JP6616983 U JP 6616983U JP H022797 Y2 JPH022797 Y2 JP H022797Y2
- Authority
- JP
- Japan
- Prior art keywords
- propulsion
- pin
- reaction force
- receiving member
- force receiving
- 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
- 230000001141 propulsive effect Effects 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Description
【考案の詳細な説明】
本考案は、鋼管やヒユーム管等を推進する推進
装置の推進反力受け機構に関するものである。[Detailed Description of the Invention] The present invention relates to a propulsion reaction force receiving mechanism for a propulsion device that propels a steel pipe, a humid pipe, or the like.
鋼管やヒユーム管等（以下推進管という）を推
進させる装置は、周知のように推進管の後端部に
押輪を当接させ、この押輪を反力受け部材に固定
した推進ジヤツキで押圧し、推進管を推進させる
ようにしている。 As is well known, the device for propelling steel pipes, hume pipes, etc. (hereinafter referred to as propulsion tubes) has a push ring in contact with the rear end of the propulsion tube, and this push ring is pressed by a propulsion jack fixed to a reaction force receiving member. The propulsion tube is used to propel the vehicle.
従来の推進装置の一例を第１図に示す。図にお
いて、１は反力受け部材２に固定された推進ジヤ
ツキで、その作動稈には押輪３が固定されてい
る。４は脚部６上に所定の間隔で対向配置された
フレームで、その対向面には反力受け部材２と押
輪３が摺動可能に嵌装される溝５が設けられてお
り、かつ所定の間隔で多数のピン穴７が貫設され
ている。８はピンで、第２図に示すようにフレー
ム４のピン穴７及び反力受け部材２に、ピン穴７
と整合して設けたピン穴２ａに挿通される。９は
推進管である。 An example of a conventional propulsion device is shown in FIG. In the figure, 1 is a propulsion jack fixed to a reaction force receiving member 2, and a push ring 3 is fixed to its operating culm. Reference numeral 4 denotes a frame disposed opposite to each other at a predetermined interval on the leg portion 6, and a groove 5 in which the reaction force receiving member 2 and the push ring 3 are slidably fitted is provided on the opposing surface thereof, and A large number of pin holes 7 are penetrated at intervals of . 8 is a pin, which is inserted into the pin hole 7 of the frame 4 and the reaction force receiving member 2 as shown in FIG.
It is inserted through the pin hole 2a provided in alignment with the pin hole 2a. 9 is a propulsion tube.
上記のように構成した推進装置においては、推
進ジヤツキ１を１ストローク伸し、推進管９を矢
印ａ方向に１ストローク分推進させる。一方、推
進ジヤツキ１の反力は、反力受け部材２及びピン
８を介してフレーム４へ伝達される。１ストロー
クの推進が終ると、推進ジヤツキ１の圧力を開放
し、作業者がピン８を抜いて押輪３、推進ジヤツ
キ１と共に反力受部材２を次のピン穴７′まで前
進させ、ピン穴７′から反力受け部材２のピン穴
２ａにピン８を挿通して推進のできる状態にす
る。このようにして、１ストロークずつ推進管９
を推進させる。 In the propulsion device configured as described above, the propulsion jack 1 is extended by one stroke, and the propulsion tube 9 is propelled by one stroke in the direction of arrow a. On the other hand, the reaction force of the propulsion jack 1 is transmitted to the frame 4 via the reaction force receiving member 2 and the pin 8. When one stroke of propulsion is completed, the pressure on the propulsion jack 1 is released, the operator pulls out the pin 8, advances the reaction force receiving member 2 together with the push ring 3 and the propulsion jack 1 to the next pin hole 7', and presses the pin hole. The pin 8 is inserted into the pin hole 2a of the reaction force receiving member 2 from 7' to make it ready for propulsion. In this way, one stroke at a time, the propulsion tube 9
promote.
ところで、推進管９の径が600φクラス、推進
長が100ｍ程度の場合、推進力は300t程度必要と
なるが、従来の推進装置においては、この大きな
力を２本のピン８，８で受けている。しかしなが
ら、ピン穴７，２ａの径D2と、ピン８の径D1と
の差は小さいため、ピン８の抜き差しが困難にな
り、作業能率低下させていた。なお、ピン８の抜
き差しを容易にするためこの差（D2−D1）を大
きくすると、従来せん断力を計算してピン８の径
を決めていたのを、せん断力と曲げ力の両者を計
算してピン８の径を定めなければならないので、
ピン８の径D1が著しく大きくなり、このため装
置全体が大きくなつて高価になるばかりでなく、
作業も困難になる。 By the way, when the diameter of the propulsion tube 9 is 600φ class and the propulsion length is about 100 m, a propulsive force of about 300 t is required, but in the conventional propulsion device, this large force is received by the two pins 8, 8. There is. However, since the difference between the diameter D 2 of the pin holes 7, 2a and the diameter D 1 of the pin 8 is small, it becomes difficult to insert and remove the pin 8, reducing work efficiency. In addition, by increasing this difference (D 2 - D 1 ) to make it easier to insert and remove pin 8, the diameter of pin 8 was determined by calculating the shear force, but now both the shear force and the bending force have to be calculated. Since the diameter of pin 8 must be determined by calculation,
The diameter D 1 of the pin 8 becomes significantly larger, which not only makes the entire device larger and more expensive, but also
It also becomes difficult to work.
本考案は、上記のような問題点を解決すべくな
されたもので、ピンの抜き差しを容易にして作業
能率を向上させることを目的としたものである。 The present invention was made to solve the above-mentioned problems, and aims to improve work efficiency by making it easier to insert and remove pins.
本考案に係る推進装置の推進反力受け機構は、
上記の目的を達成するため、反力受け部材に固定
された推進ジヤツキ、該推進ジヤツキの作動側に
取付けられた押輪、多数のピン穴を有するフレー
ム及び前記反力受け部材を前記ピン穴を介してフ
レームに結合するピン等からなる推進管の推進装
置において、前記反力受け部材にほゞＵ字状の切
欠部を設け、該切欠部を前記フレームに挿通した
ピンと係合させて前記推進ジヤツキの推進力を受
けるように構成したことを特徴とするものであ
る。以下図面を用いて本考案を説明する。 The propulsion reaction force receiving mechanism of the propulsion device according to the present invention is
In order to achieve the above object, a propulsion jack fixed to a reaction force receiving member, a push ring attached to the operating side of the propulsion jack, a frame having a large number of pin holes, and the reaction force receiving member are connected through the pin holes. In a propulsion tube propulsion device consisting of a pin or the like that is coupled to a frame, the reaction force receiving member is provided with a substantially U-shaped notch, and the notch is engaged with a pin inserted through the frame to connect the propulsion jack. It is characterized by being configured to receive the propulsion force of. The present invention will be explained below using the drawings.
第３図は本考案実施例の平面図、第５図ａはそ
の要部の平面図、ｂはａ図の−断面図であ
る。なお、第１図と同じ機能の部分には同じ符号
を付し、説明を省略する。２１は反力受け部材
で、本実施例においては、第２図のピン穴２ａの
代りに、後方に開口したＵ字状の切欠部２２を設
けると共に、ピン穴７の間隔を従来よりやや狭く
するか、又は推進ジヤツキ１のストロークを従来
よりやや長くし、かつ推進管９を押輪３に連結し
たものである。 FIG. 3 is a plan view of an embodiment of the present invention, FIG. 5 a is a plan view of the main part thereof, and FIG. Note that parts having the same functions as those in FIG. 1 are denoted by the same reference numerals, and explanations thereof will be omitted. Reference numeral 21 designates a reaction force receiving member, and in this embodiment, instead of the pin hole 2a shown in FIG. 2, a U-shaped notch 22 opened at the rear is provided, and the spacing between the pin holes 7 is slightly narrower than in the past. Alternatively, the stroke of the propulsion jack 1 is made slightly longer than the conventional one, and the propulsion pipe 9 is connected to the push ring 3.
次に、上記のように構成した本考案の作用を説
明する。第３図に示すように、ピン穴７ａと反力
受け部材２１の切欠部２２にピン８を挿通し、推
進ジヤツキ１を１ストローク伸し、推進管９を推
進させる。このとき、推進ジヤツキ１の反力は、
反力受け部材２２、ピン８を介してフレーム４へ
伝達される。推進管９が１ストローク推進する
と、推進ジヤツキ１の圧力を開放する。この結
果、第４図に示すように反力受け部材２１は矢印
ａ方向に移動して、切欠部２２はピン８から離れ
るので、ピン８をピン穴７ａから抜いて次のピン
穴７ｂに挿通する。この状態で推進ジヤツキ１を
１ストローク伸ばすと、反力受部材２１は僅かに
矢印ｂ方向に後退して切欠部２２がピン８と係合
し、推進ジヤツキ１の反力を受けるので、推進管
９を再び推進させることができる。このような作
用を繰返すことにより、推進管９を容易かつ短時
間に推進させることができる。 Next, the operation of the present invention configured as described above will be explained. As shown in FIG. 3, the pin 8 is inserted into the pin hole 7a and the notch 22 of the reaction force receiving member 21, the propulsion jack 1 is extended by one stroke, and the propulsion tube 9 is propelled. At this time, the reaction force of the propulsion jack 1 is
The reaction force is transmitted to the frame 4 via the reaction force receiving member 22 and the pin 8. When the propulsion tube 9 propels one stroke, the pressure in the propulsion jack 1 is released. As a result, as shown in FIG. 4, the reaction force receiving member 21 moves in the direction of arrow a, and the notch 22 separates from the pin 8, so the pin 8 is pulled out of the pin hole 7a and inserted into the next pin hole 7b. do. When the propulsion jack 1 is extended by one stroke in this state, the reaction force receiving member 21 moves back slightly in the direction of arrow b, the notch 22 engages with the pin 8, and receives the reaction force of the propulsion jack 1. 9 can be promoted again. By repeating such actions, the propulsion tube 9 can be propelled easily and in a short time.
第６図は本考案の他の実施例を示すもので、本
実施例においては、推進管９を矢印ａ方向に推進
し、又は矢印ｂ方向に引抜くため、推進ジヤツキ
１の押圧力及び引張力の両者を利用することを可
能にしたもので、反力受け部材２１ａに後方に開
口した推進用の切欠部２２ａと、前方に開口した
引抜用の切欠部２２ｂとを設け、これにより推進
管の推進時には切欠部２２ａをピン８と係合さ
せ、引抜時には切欠部２２ｂをピン８と係合させ
て、推進ジヤツキの反力を受けるようにしたもの
である。なお、この場合、推進管９を押輪３に接
合しておくことは云う迄もない。 FIG. 6 shows another embodiment of the present invention. In this embodiment, in order to propel the propulsion tube 9 in the direction of the arrow a or pull it out in the direction of the arrow b, the pushing force and tension of the propulsion jack 1 are The reaction force receiving member 21a is provided with a propulsion notch 22a opened at the rear and a pullout notch 22b opened at the front. During propulsion, the notch 22a is engaged with the pin 8, and when withdrawn, the notch 22b is engaged with the pin 8 to receive the reaction force of the propulsion jack. In this case, it goes without saying that the propulsion tube 9 is joined to the press ring 3.
以上の説明から明らかなように、次のような顕
著な効果を奏することができる。 As is clear from the above description, the following remarkable effects can be achieved.
(1) 反力受け部材にＵ字状の切欠部を設けたので
ピンの着脱がスムーズになり、作業能率を向上
させることができる。(1) Since a U-shaped notch is provided in the reaction force receiving member, the pin can be attached and detached smoothly, improving work efficiency.
(2) ピン穴の径とピンの径との差が少なくてすむ
ので、ピンの強度は推進時に作用するせん断力
だけを計算すればよく、したがつてピンの径を
小さくできる。この結果フレームを含む装置全
体を小形にすることができる。(2) Since the difference between the diameter of the pin hole and the diameter of the pin is small, the strength of the pin only needs to be calculated by the shear force that acts during propulsion, and the diameter of the pin can therefore be reduced. As a result, the entire device including the frame can be made smaller.
(3) 反力受け部材の両側（前後）にＵ字状切欠部
を設けることにより、推進ジヤツキの押力と引
張力の両者を利用することができる。(3) By providing U-shaped notches on both sides (front and rear) of the reaction force receiving member, both the pushing force and the tensile force of the propulsion jack can be utilized.
第１図ａは従来の推進装置の一例の平面図、ｂ
は側面図、ｃはａの−断面図、第２図は第１
図の要部の断面図、第３図は本考案実施例の平面
図、第４図はその作用説明図、第５図ａは本考案
実施例要部の平面図、ｂはその−断面図、第
６図は本考案の別の実施例の平面図である。
１……推進ジヤツキ、２１，２１ａ……反力受
け部材、２２，２２ａ，２２ｂ……切欠部、３…
…押輪、４……フレーム、７′，７ａ，７ｂ……
ピン穴、８……ピン、９……推進管。
Figure 1a is a plan view of an example of a conventional propulsion device, and b
is a side view, c is a cross-sectional view of a, and Figure 2 is the first
3 is a plan view of the embodiment of the invention, FIG. 4 is an explanatory diagram of its operation, FIG. 5 a is a plan view of the main part of the embodiment of the invention, and b is a sectional view thereof. , FIG. 6 is a plan view of another embodiment of the present invention. 1... Propulsion jack, 21, 21a... Reaction force receiving member, 22, 22a, 22b... Notch, 3...
...Push ring, 4...Frame, 7', 7a, 7b...
Pin hole, 8...pin, 9...propulsion tube.
Claims (1)
進ジヤツキの作動側に取付けられた押輪、多数の
ピン穴を有するフレーム及び前記反力受け部材を
前記ピン穴を介してフレームに結合するピン等か
らなる推進管の推進装置において、 前記反力受け部材にほゞＵ字状の切欠部を設
け、該切欠部と前記フレームに挿通したピンと係
合させて前記推進ジヤツキの推進力を受けるよう
に構成したことを特徴とする推進反力受け機構。[Claims for Utility Model Registration] A propulsion jack fixed to a pressure receiving member, a press ring attached to the operating side of the propulsion jack, a frame having a large number of pin holes, and the reaction force receiving member connected through the pin hole. In a propulsion device for a propulsion tube consisting of a pin or the like coupled to a frame, the reaction force receiving member is provided with a substantially U-shaped notch, and the notch is engaged with a pin inserted through the frame to prevent the propulsion jack from moving. A propulsive reaction force receiving mechanism characterized by being configured to receive propulsive force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6616983U JPS59173797U (en) | 1983-05-04 | 1983-05-04 | Propulsion reaction force receiving mechanism of propulsion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6616983U JPS59173797U (en) | 1983-05-04 | 1983-05-04 | Propulsion reaction force receiving mechanism of propulsion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59173797U JPS59173797U (en) | 1984-11-20 |
| JPH022797Y2 true JPH022797Y2 (en) | 1990-01-23 |
Family
ID=30196377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6616983U Granted JPS59173797U (en) | 1983-05-04 | 1983-05-04 | Propulsion reaction force receiving mechanism of propulsion device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59173797U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10121887A (en) * | 1996-10-16 | 1998-05-12 | Osaka Gas Co Ltd | Small bore excavator |
-
1983
- 1983-05-04 JP JP6616983U patent/JPS59173797U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59173797U (en) | 1984-11-20 |
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