JP2004298704A

JP2004298704A - Method and apparatus for closing gap around pipe periphery

Info

Publication number: JP2004298704A
Application number: JP2003093050A
Authority: JP
Inventors: Masaru Hamada; 賢浜田
Original assignee: ATSUJI TEKKO KK
Current assignee: ATSUJI TEKKO KK
Priority date: 2003-03-31
Filing date: 2003-03-31
Publication date: 2004-10-28
Anticipated expiration: 2023-03-31
Also published as: JP3831354B2

Abstract

<P>PROBLEM TO BE SOLVED: To close a gap arisen between the periphery of a pipe and a hole of a grinding material recovery box into which an end of the pipe is inserted in an apparatus for grinding the inside of the pipe. <P>SOLUTION: One end of a flexible tube member 5 of which both the ends are open is fixed to the grinding material recovery box 1 so as to be concentric with the hole 11 of the recovery box 1; a pipe P is inserted from the free end side of the tube member 5 into the hole 11 of a mate member (10); and the tube member 5 is twisted by turning the free end of the tube member 5 in the circumferential direction of the pipe P to fasten the pipe P with the tube member 5 to bring the inside surface of the tube member 5 into tight contact with the pipe P. Thereby, the gap S between the pipe P and the hole 11 is closed, and a grinding material is prevented from leaking out through the gap S. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する分野】
本発明は、パイプ研掃において、研掃材回収筺と、該筺の孔に嵌まったパイプとの間の隙間から研掃材が洩れることを防止するため等に実施する、パイプと相手部材の孔との間の隙間を防ぐ方法及び装置に関するものである。
【０００２】
【従来の技術】
図５は、従来の太径パイプの内面研掃装置を示している。
該研掃装置は、２つの研掃材回収筺（１）（１ａ）を対向配備し、一方の研掃材回収筺（１）は定位置に固定し、他方の研掃材回収筺（１ａ）はレール（１３）上を移動可能に配備され、固定側回収筺（１ａ）に対して接近離間可能である。
両研掃材回収筺（１）（１ａ）の対向面にパイプ挿入孔（１１）（１１）が開設され、レール（１３）上の２つの可動支え台（２ａ）（２）に支持されたパイプＰの両端部が、両研掃材回収筺（１）（１ａ）の孔（１１）（１１）に嵌まっている。
パイプＰの一端側に他端側へ移動可能に研掃機（３）が配備される。研掃機（３）は、回転するノズル（３１）から研掃材を噴射し、パイプＰの内面研掃を行う。
研掃材は、両方の研掃材回収筺（１）（１ａ）に回収される。
研掃すべきパイプＰに長短がある場合、可動側研掃材回収筺（１）及び支え台（２）（２ａ）をパイプＰの長さに対応して移動させれば可い。
【０００３】
両研掃材回収筺（１）（１ａ）の孔（１１）（１１）は、研掃可能な最大径のパイプが余裕のある状態に嵌まる大きさに開設され、孔（１１）とパイプＰとの間に生じる隙間はゴム板（７）で塞がれる。
図６に示す如く、ゴム板（７）は、パイプＰの外径に対応する孔（７１）が開設され、孔（７１）の軸心を含む線上で、２分割、又は複数片に分割可能されている。
取付けリング（７２）で該ゴム板（７）を押さえて研掃材回収筺（１）にボルト止めされる。
ゴム板（７）は、パイプ径に合わせた孔（７１）を開設したものをその都度製作する。
前記支え台（２）（２ａ）は高さ調節が可能であり、パイプ軸心と研掃材回収筺（１）（１ａ）の孔（１１）（１１）の中心を一致させることができる。
パイプＰ端部から噴出して研掃材回収筺（１）（１ａ）内を飛散する研掃材は、ゴム板（７）によって外部への洩出は防止される。
【０００４】
【発明が解決する課題】
上記の様に、パイプ径に合わせてゴム板（７）を製作することは面倒であり、コスト高を招来する。更に、ゴム板（７）の交換作業が面倒であり、作業性が悪くなる。又、ゴム板（７）は、研掃材回収筺（１）（１ａ））の孔（１１）と同心に該筺（１）（１ａ）に取り付けられる。このため、パイプＰの軸心と研掃材回収筺（１）（１ａ）の孔（１１）（１１）の中心がずれていると、ゴム板（７）の孔縁とパイプＰとの間に部分的に隙間が生じ、研掃材が外部に洩れる問題が生じる。
本発明は、上記問題を解決できるパイプ外周部の隙間を塞ぐ方法及び塞ぎ装置を明らかにするものである。
【０００５】
【課題を解決する手段】
本発明の、パイプＰと相手部材（１０）の孔（１１）との間に生じる隙間Ｓを塞ぐ方法は、両端が開口した可撓性筒部材（５）の一端を、該孔（１１）と略同心に相手部材（１０）に取り付け、筒部材（５）の自由端側からパイプＰを相手部材（１０）の孔（１１）に挿入し、筒部材（５）の自由端をパイプＰの周方向に回して筒部材（５）を捻ることにより、該筒部材（５）でパイプＰを締め付けて筒部材（５）内面をパイプＰに密着させる。
【０００６】
本発明の、パイプＰを相手部材（１０）の孔（１１）に嵌めた際、該孔（１１）とパイプＰ外周との間に生じる隙間Ｓを塞ぐ装置は、パイプＰを嵌める孔（１１）を開設した相手部材（１０）と、一端開口縁が該孔（１１）と略同心に相手部材（１０）に固定された可撓性筒部材（５）と、該筒部材（５）の自由端を筒部材（５）の周方向に回転させて筒部材（５）を捻じった状態で保持する保持手段（６）とによって構成される。
【０００７】
【作用及び効果】
筒部材（５）は、パイプＰパイプが余裕のある状態に挿入でき、筒部材（５）を周方向に捻った際に、パイプＰを締め付けることが出来る範囲であれば、相手パイプＰの外径寸法は問わない。このため、従来の様に、パイプ外径に合わせて、その都度ゴム板（７）を製作し、該ゴム板（７）をパイプ挿入相手部材（１０）に取り付ける手間は不要となり、コストの低減及び作業能率の向上を図ることができる。
又、筒部材（５）の軸心とパイプ挿入相手部材（１０）の孔（１１）の中心が多少ずれていても、筒部材（５）を捻って筒部材内面をパイプに密着させることができるので、筒部材（５）の取り付けに精度を要求されない。
【０００８】
【発明の実施の形態】
図１は、本発明を実施した、太径パイプの内面研掃装置を示している。
２つの研掃材回収筺（１）（１ａ）が対向配備され、一方の研掃材回収筺（１）は定位置に固定され、他方の研掃材回収筺（１ａ）は、レール（１３）上を固定側研掃材回収筺（１）に接近離間可能に設けられる。
両研掃材回収筺（１）（１ａ）の対向面に、パイプＰの端部が余裕のある状態に嵌まる孔（１１）（１１）が開設される。
研掃材回収筺（１）（１ａ）の間のレール（１３）上に２つのパイプ支え台（２）（２ａ）が移動可能に配備される。
支え台（２）（２ａ）は上部がＹ字状に開き、高さ調節が可能であって、研掃すべきパイプＰをＹ字状開き部に載せて支え、研掃材回収筺（１）（１ａ）の孔（１１）（１１）の中心に軸心を揃えで支持できる。
【０００９】
可動側研掃材回収筺（１）側から、パイプＰ内に研掃機（３）が挿入可能である。
研掃機（３）は、該研掃機（３）に連結され研掃材回収筺（１）の壁面を貫通した研掃材圧送パイプ（３２）を押すことによってパイプＰ内を軸方向に移動する。
モータ駆動によって研掃機（３）を自走式とすることもできる。
研掃機（３）は先端に二股ノズル（３１）を有し、該ノズルを回転せつつ、該ノズルかにパイプ内面に研掃材を噴射させる。
研掃機（３）は、パイプの種類等によって、パイプ内径が異なる場合でも、ノズル（３１）をパイプの軸芯に位置させて安定してパイプ内を移動できる公知の調整機構（図示せず）を有している。
【００１０】
本発明の特徴は、研掃材回収筺（１）（１ａ）の対向壁面に、孔（１１）とパイプＰとの間に生じる隙間Ｓを塞ぐ隙間塞ぎ装置（４）を設けた点である。
以下、可動側研掃材回収筺（１）上の隙間塞ぎ装置（４）について述べるが、固定側研掃材回収筺（１ａ）の隙間塞ぎ装置（４）も同じ構成である。
図２、図３に示す如く、隙間塞ぎ装置（４）は、パイプＰが余裕のある状態に嵌まり一端が研掃材回収筺（１）に固定された可撓性の筒部材（５）と、筒部材（５）の自由端をパイプＰ上で捻った位置で保持できる保持手段（６）とによって構成される。
【００１１】
筒部材（５）は、目の詰まった厚手の織地にて形成され、耐摩耗性に優れている。
筒部材（５）は両端が開口し、取付け側基端は、折返して２枚重ねの補強耳部（５０）を形成している。
筒部材（５）の他端は、折返して袋部（５２）及び２枚重ねの補強部（５４）を形成している。袋部（５２）内にリング状の芯金（５３）が配備され、補強部（５４）には、周方向に等間隔にハトメ（５５）が施されている。
芯金（５４）は鉄製丸棒を円形に曲げ、両端を溶接して形成されており、容易に変形しない。
【００１２】
筒部材（５）の基端補強耳部（５０）は、止めリング（５１）によって、研掃材回収筺（１）の孔（１１）と同心に該筺（１）にボルト止め固定される。
止めリング（５１）は、アングル材を環状に曲げて両端を溶接して無端状に形成され、筺体への取付け面で、筒部材（５）の折曲げ補強耳部（５０）を押さえて、筒部材（５）を研掃材回収筺（１）に固定している。
【００１３】
保持手段（６）は、筒部材（５）の近傍にて、研掃材回収筺（１）に突設した突軸（６１）と、該突軸（６１）にバネ（６２）を介して連結されたフック（６３）とによって構成される。
フック（６３）は、筒部材（５）のハトメ（５５）の孔（５６）に引っ掛かり可能である。
【００１４】
然して、可動側研掃材回収筺（１）を固定側研掃材回収筺（１ａ）から遠ざかる方向後退させ、２つの支え台（２）（２ａ）の間隔を、パイプＰを安定して支持できる間隔に開く。
支え台（２）（２ａ）上にパイプＰを載せ、支え台（２）（２ａ）を固定側研掃材回収筺（１ａ）へ移動させて、パイプ先端を該筺（１ａ）上の筒部材（５）に嵌めると共に、孔（１１）に嵌める。
次に、可動側研掃材回収筺（１）を前進させて、パイプＰ他端を該筺上の筒部材（５）及び孔（１１）に嵌める。
パイプ他端へ研掃機（３）をセットする。
【００１５】
筒部材（５）の自由端をパイプＰの周方向に回して筒部材（５）を捻る。
筒部材（５）の自由端には、容易に変形しない芯金（５３）が嵌まっているから、捻り易く、全周に亘って均等に捻ることができる。
上記筒部材（５）の捻りによって、該筒部材（５）は、筒長さの略中央部が縮径してパイプＰを締め付け、筒部材（５）内面がパイプＰ周面に密着する。従って、研掃材回収筺（１）（１ａ）の孔（１１）とパイプＰ外周面との間に生じる隙間Ｓは塞がれる。
保持手段（６）のフック（６３）をバネ（６２）に抗して引っ張って、筒部材（５）自由端の適所のハトメ（５５）の孔（５６）に引っ掛け、筒部材（５）の捻れ状態を保持する。
研掃機（３）の運転により、研掃材がパイプＰの両端から噴出して研掃材回収筺（１）（１ａ）内を飛散しても、上記の如く、パイプＰと孔（１１）との間の隙間Ｓは塞がれているから、研掃材が外部へ洩れることを防止できる。
【００１６】
筒部材（５）は、パイプが余裕のある状態に嵌まり、筒部材（５）を周方向に捻った際に、パイプＰを締め付けることが出来る範囲であれば、パイプＰの外径寸法は問わない。このため、従来の様に、パイプ外径に合わせて、その都度ゴム板（７）を製作し、該ゴム板（７）を相手部材（１０）の孔（１１）に取り付ける手間は不要となり、コストの低減及び作業能率の向上を図ることができる。
【００１７】
筒部材（５）からフック（６３）を外し、筒部材（５）の捻れを元に戻せば、筒部材（５）からパイプＰを簡単に外すことができる。
【００１８】
本発明の実施に際し、パイプＰの端部を挿入する相手部材（１０）は、研掃材回収筺（１）（１ａ）に限ることはなく、パイプＰを挿入する必要があり、且つ、パイプＰとパイプ挿入孔（１１）との間に生じる隙間Ｓを塞ぐ必要のあるものであれば相手部材の種類、用途は問わない。
又、上記実施例では、保持手段（６）のフック（６３）を、筒部材（５）上のハトメ（５５）の孔（５６）に引っ掛けたが、筒部材（５）の自由端に、掛かり片（図示せず）を突設し、該掛かり片にフック（５６）を引っ掛ける様にすることもできる。
【００１９】
上記実施例の説明は、本発明を説明するためのものであって、特許請求の範囲に記載の発明を限定し、或は範囲を減縮する様に解すべきではない。又、本発明の各部構成は上記実施例に限らず、特許請求の範囲に記載の技術的範囲内で種々の変形が可能であることは勿論である。
【図面の簡単な説明】
【図１】本発明の研掃装置の説明図である。
【図２】隙間塞ぎ装置の斜面図である。
【図３】隙間塞ぎ装置の断面図である。
【図４】隙間塞ぎ装置の使用状態の斜面図である。
【図５】従来例の研掃装置の概略説明図である。
【図６】従来例の隙間塞ぎ手段の説明図である。
【符号の説明】
（１）研掃材回収筺
（２）支え台
（３）研掃機
（４）隙間塞ぎ装置
（５）筒部材
（６）保持手段[0001]
[Field of the Invention]
The present invention relates to a pipe cleaning method for preventing the cleaning material from leaking from a gap between a cleaning material recovery housing and a pipe fitted into a hole of the housing in pipe cleaning. And methods for preventing gaps between the holes.
[0002]
[Prior art]
FIG. 5 shows a conventional inner surface cleaning apparatus for a large diameter pipe.
In the blasting device, two blasting material collecting housings (1) and (1a) are arranged opposite to each other, one blasting material collecting case (1) is fixed at a fixed position, and the other blasting material collecting case (1a). ) Is movably provided on the rail (13) and can be approached to and separated from the fixed-side recovery housing (1a).
Pipe insertion holes (11) and (11) were opened in the opposite surfaces of the two cleaning material recovery housings (1) and (1a), and were supported by two movable supports (2a) and (2) on a rail (13). Both ends of the pipe P are fitted in the holes (11) and (11) of the two cleaning material recovery housings (1) and (1a).
A sharpener (3) is provided at one end of the pipe P so as to be movable to the other end. The blasting machine (3) injects blasting material from a rotating nozzle (31) to clean the inner surface of the pipe P.
The blast material is collected in both blast material collection housings (1) and (1a).
If the pipe P to be cleaned has a length, the movable-side cleaning material collection housing (1) and the support tables (2) and (2a) may be moved according to the length of the pipe P.
[0003]
The holes (11) and (11) of both the cleaning material recovery housings (1) and (1a) are set to have a size such that the pipe having the largest diameter that can be cleaned can fit in the spare state. The gap generated between P and P is closed by a rubber plate (7).
As shown in FIG. 6, the rubber plate (7) has a hole (71) corresponding to the outer diameter of the pipe P, and can be divided into two or a plurality of pieces on a line including the axis of the hole (71). Have been.
The rubber plate (7) is held down by the mounting ring (72) and is bolted to the abrasive material recovery housing (1).
The rubber plate (7) is provided with a hole (71) corresponding to the pipe diameter, and is manufactured each time.
The height of the support bases (2) and (2a) can be adjusted, and the center of the pipe and the center of the holes (11) and (11) of the abrasive material recovery housings (1) and (1a) can be matched.
The abrasive material spouted from the end of the pipe P and scattered in the abrasive material recovery housing (1) (1a) is prevented from leaking to the outside by the rubber plate (7).
[0004]
[Problems to be solved by the invention]
As described above, it is troublesome to manufacture the rubber plate (7) according to the pipe diameter, which leads to an increase in cost. Further, the replacement work of the rubber plate (7) is troublesome, and the workability is deteriorated. The rubber plate (7) is attached to the housings (1) (1a) concentrically with the holes (11) of the cleaning material recovery housings (1) (1a). Therefore, if the axis of the pipe P is displaced from the center of the holes (11) and (11) of the abrasive material collecting housings (1) and (1a), the gap between the hole edge of the rubber plate (7) and the pipe P is lost. There is a problem in that a gap is partially formed in the material and the abrasive material leaks to the outside.
The present invention is to clarify a method and a device for closing a gap at an outer peripheral portion of a pipe, which can solve the above problem.
[0005]
[Means to solve the problem]
The method of closing the gap S generated between the pipe P and the hole (11) of the mating member (10) according to the present invention is as follows: One end of the flexible tubular member (5) having both ends opened is connected to the hole (11). The pipe P is inserted into the hole (11) of the counterpart member (10) from the free end side of the cylindrical member (5), and the free end of the pipe member (5) is connected to the pipe P substantially concentrically with the counterpart member (10). By twisting the cylindrical member (5) by turning it in the circumferential direction, the pipe P is tightened by the cylindrical member (5) to bring the inner surface of the cylindrical member (5) into close contact with the pipe P.
[0006]
The device for closing the gap S formed between the hole (11) and the outer periphery of the pipe P when the pipe P is fitted into the hole (11) of the mating member (10) according to the present invention is provided with the hole (11) for fitting the pipe P. ), A flexible tubular member (5) having one end opening edge fixed to the counterpart member (10) substantially concentrically with the hole (11), and a tubular member (5). A holding means (6) for holding the tubular member (5) in a twisted state by rotating the free end in the circumferential direction of the tubular member (5).
[0007]
[Action and effect]
The tubular member (5) can be inserted in a state where the pipe P has a margin, and if the pipe P can be tightened when the tubular member (5) is twisted in the circumferential direction, the outside of the mating pipe P can be used. The diameter dimension does not matter. For this reason, it is not necessary to manufacture the rubber plate (7) each time according to the outer diameter of the pipe and to attach the rubber plate (7) to the pipe insertion counterpart member (10) as in the related art, thereby reducing the cost. In addition, work efficiency can be improved.
Further, even if the axis of the cylindrical member (5) is slightly deviated from the center of the hole (11) of the pipe insertion counterpart member (10), it is possible to twist the cylindrical member (5) to bring the inner surface of the cylindrical member into close contact with the pipe. Since it is possible, the mounting of the tubular member (5) does not require high accuracy.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 shows an inner surface cleaning apparatus for a large-diameter pipe in which the present invention is implemented.
Two blasting material collecting housings (1) and (1a) are provided opposite to each other, one blasting material collecting case (1) is fixed at a fixed position, and the other blasting material collecting case (1a) is provided with a rail (13). ) The upper part is provided so as to be able to approach and separate from the fixed-side abrasive material recovery housing (1).
Holes (11) and (11) are formed in the opposite surfaces of the two cleaning material recovery casings (1) and (1a) so that the ends of the pipes P fit in a marginal state.
Two pipe supports (2) and (2a) are movably provided on the rail (13) between the blasting material recovery housings (1) and (1a).
The support bases (2) and (2a) are open at the top in a Y-shape, can be adjusted in height, and support the pipe P to be cleaned mounted on the Y-shaped opening, and support the cleaning material collection housing (1). ) (1a) The holes (11) and (11) can be supported with their axes aligned at the center.
[0009]
A blasting machine (3) can be inserted into the pipe P from the movable blasting material recovery housing (1) side.
The blasting machine (3) pushes a blasting material pumping pipe (32) connected to the blasting machine (3) and penetrating the wall surface of the blasting material recovery housing (1), thereby axially moving inside the pipe P. Moving.
The grinding machine (3) can be made to be self-propelled by driving a motor.
The blasting machine (3) has a forked nozzle (31) at its tip, and causes the nozzle to spray blasting material onto the inner surface of the pipe while rotating the nozzle.
The cleaning machine (3) has a well-known adjusting mechanism (not shown) that can stably move the inside of the pipe by positioning the nozzle (31) at the axis of the pipe even when the inner diameter of the pipe varies depending on the type of the pipe. )have.
[0010]
A feature of the present invention is that a gap closing device (4) for closing a gap S generated between the hole (11) and the pipe P is provided on the opposed wall surface of the blasting material recovery housing (1) (1a). .
Hereinafter, the gap closing device (4) on the movable-side abrasive material collecting housing (1) will be described. However, the gap closing device (4) of the fixed-side abrasive material collecting housing (1a) has the same configuration.
As shown in FIGS. 2 and 3, the gap closing device (4) is a flexible tubular member (5) in which the pipe P is fitted in a marginal state and one end of which is fixed to the blasting material recovery housing (1). And holding means (6) capable of holding the free end of the tubular member (5) in a twisted position on the pipe P.
[0011]
The tubular member (5) is formed of a dense and thick fabric, and has excellent wear resistance.
Both ends of the tubular member (5) are open, and the base end on the mounting side is folded back to form a two-piece reinforcing ear (50).
The other end of the tubular member (5) is folded back to form a bag portion (52) and a two-ply reinforcing portion (54). A ring-shaped metal core (53) is provided in the bag portion (52), and eyelets (55) are provided on the reinforcing portion (54) at equal intervals in the circumferential direction.
The core metal (54) is formed by bending an iron round bar into a circle and welding both ends, and is not easily deformed.
[0012]
The base reinforcing ear portion (50) of the tubular member (5) is fixed to the housing (1) by a bolt with a retaining ring (51) concentrically with the hole (11) of the abrasive material recovery housing (1). .
The retaining ring (51) is formed into an endless shape by bending an angle material in an annular shape and welding both ends thereof, and pressing the bending reinforcing ears (50) of the tubular member (5) with a surface to be attached to the housing, The tubular member (5) is fixed to the blasting material recovery housing (1).
[0013]
The holding means (6) has a protruding shaft (61) protruding from the blasting material recovery housing (1) near the cylindrical member (5), and the protruding shaft (61) is connected to the protruding shaft (61) via a spring (62). And a hook (63) connected thereto.
The hook (63) can be hooked on the hole (56) of the eyelet (55) of the tubular member (5).
[0014]
However, the movable-side abrasive material recovery housing (1) is retracted in a direction away from the fixed-side abrasive material recovery housing (1a), and the distance between the two support tables (2) and (2a) is stably supported by the pipe P. Open at intervals you can.
The pipe P is placed on the support (2) (2a), and the support (2) (2a) is moved to the fixed-side abrasive material recovery housing (1a), and the tip of the pipe is placed on a tube on the housing (1a). Fit into the member (5) and into the hole (11).
Next, the movable-side cleaning material recovery housing (1) is advanced, and the other end of the pipe P is fitted into the cylindrical member (5) and the hole (11) on the housing.
Set the scrubber (3) at the other end of the pipe.
[0015]
The free end of the tubular member (5) is turned in the circumferential direction of the pipe P to twist the tubular member (5).
Since the core metal (53), which is not easily deformed, is fitted to the free end of the tubular member (5), it is easy to twist, and can be twisted uniformly over the entire circumference.
Due to the twisting of the tubular member (5), the diameter of the tubular member (5) is reduced at a substantially central portion of the tubular length, thereby tightening the pipe P, and the inner surface of the tubular member (5) comes into close contact with the peripheral surface of the pipe P. Therefore, the gap S generated between the hole (11) of the cleaning material recovery housing (1) (1a) and the outer peripheral surface of the pipe P is closed.
The hook (63) of the holding means (6) is pulled against the spring (62), and is hooked on the hole (56) of the eyelet (55) at the free end of the cylindrical member (5). Maintain the twisted state.
As described above, even if the blasting machine (3) blasts the blasting material from both ends of the pipe P and scatters in the blasting material recovery housing (1) (1a), the pipe P and the hole (11) ) Is closed, so that the abrasive material can be prevented from leaking to the outside.
[0016]
The outer diameter of the pipe P is such that the pipe P fits in a state where the pipe has a margin and the pipe P can be tightened when the pipe 5 is twisted in the circumferential direction. It doesn't matter. For this reason, it is unnecessary to manufacture a rubber plate (7) each time according to the pipe outer diameter and attach the rubber plate (7) to the hole (11) of the mating member (10) as in the conventional case. The cost can be reduced and the work efficiency can be improved.
[0017]
If the hook (63) is removed from the tubular member (5) and the twist of the tubular member (5) is restored, the pipe P can be easily removed from the tubular member (5).
[0018]
In practicing the present invention, the mating member (10) into which the end of the pipe P is inserted is not limited to the abrasive material recovery housing (1) (1a). The type and use of the mating member are not limited as long as it is necessary to close the gap S generated between P and the pipe insertion hole (11).
In the above embodiment, the hook (63) of the holding means (6) is hooked on the hole (56) of the eyelet (55) on the cylindrical member (5). A hook (not shown) may be protruded, and the hook (56) may be hooked on the hook.
[0019]
The description of the above embodiments is intended to explain the present invention, and should not be construed as limiting the invention described in the claims or reducing the scope thereof. Further, the configuration of each part of the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made within the technical scope described in the claims.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of a polishing apparatus of the present invention.
FIG. 2 is a perspective view of the gap closing device.
FIG. 3 is a sectional view of the gap closing device.
FIG. 4 is a perspective view of the use state of the gap closing device.
FIG. 5 is a schematic explanatory view of a conventional cleaning apparatus.
FIG. 6 is an explanatory view of a conventional gap closing means.
[Explanation of symbols]
(1) Abrasive material collection housing (2) Supporting stand (3) Abrasive cleaner (4) Clearing device (5) Cylindrical member (6) Holding means

Claims

パイプＰを相手部材（１０）の孔（１１）に嵌めた際、該孔（１１）とパイプＰ外周との間に生じる隙間Ｓを塞ぐ方法であって、両端が開口した可撓性筒部材（５）の一端を、該孔（１１）と略同心に相手部材（１０）に取り付け、筒部材（５）の自由端側からパイプＰを相手部材（１０）の孔（１１）に挿入し、筒部材（５）の自由端をパイプＰの周方向に回して筒部材（５）を捻ることにより、該筒部材（５）でパイプＰを締め付けて筒部材（５）内面をパイプＰに密着させることを特徴とするパイプ外周部の隙間を塞ぐ方法。A method of closing a gap S generated between a hole (11) and an outer periphery of a pipe P when a pipe P is fitted into a hole (11) of a mating member (10), wherein a flexible tubular member having both open ends is provided. One end of (5) is attached to the mating member (10) substantially concentrically with the hole (11), and the pipe P is inserted into the hole (11) of the mating member (10) from the free end side of the tubular member (5). By turning the free end of the tubular member (5) in the circumferential direction of the pipe P and twisting the tubular member (5), the pipe P is tightened by the tubular member (5) so that the inner surface of the tubular member (5) becomes the pipe P. A method for closing a gap at an outer peripheral portion of a pipe, which is characterized in that the pipe is closely adhered.

パイプＰを相手部材（１０）の孔（１１）に嵌めた際、該孔（１１）とパイプＰ外周との間に生じる隙間Ｓを塞ぐ装置であって、パイプＰを嵌める孔（１１）を開設した相手部材（１０）と、一端開口縁が該孔（１１）と略同心に相手部材（１０）に固定された可撓性筒部材（５）と、該筒部材（５）の自由端を筒部材（５）の周方向に回わして筒部材（５）を捻じった状態で保持する保持手段（６）とによって構成されるパイプ外周部の隙間を塞ぐ隙間塞ぎ装置。A device for closing a gap S generated between the hole (11) and the outer periphery of the pipe P when the pipe P is fitted into the hole (11) of the mating member (10). The opened counterpart member (10), a flexible tubular member (5) having one end opening edge fixed to the counterpart member (10) substantially concentrically with the hole (11), and a free end of the tubular member (5). And a holding means (6) for holding the pipe member (5) in a twisted state by rotating the pipe member in the circumferential direction of the pipe member (5).

研掃材回収筺（１）の壁面の孔（１１）にパイプＰを挿入し、パイプ内面に研掃材を噴射させてパイプＰ内面を研掃する装置における、研掃材回収筺（１）の孔（１１）とパイプＰとの間に生じる隙間Ｓを塞ぐ方法であって、可撓性筒部材（５）の一端を、孔（１１）と略同心に研掃材回収筺（１）に取り付け、筒部材（５）の自由端側からパイプＰを孔（１１）に挿入し、筒部材（５）の自由端をパイプＰの周方向に回して筒部材（５）を捻ることにより、該筒部材（５）でパイプＰを締め付けて筒部材（５）内面をパイプＰに密着させ、研掃材回収筺（１）の孔（１１）とパイプＰとの間の隙間を塞ぐ方法。An abrasive material collecting housing (1) in a device for inserting a pipe P into a hole (11) on a wall surface of the abrasive material collecting housing (1) and injecting an abrasive material into the pipe inner surface to clean the inner surface of the pipe P. A method of closing a gap S between a hole (11) and a pipe P, wherein one end of a flexible tubular member (5) is substantially concentric with the hole (11). And the pipe P is inserted into the hole (11) from the free end side of the tubular member (5), and the free end of the tubular member (5) is turned in the circumferential direction of the pipe P to twist the tubular member (5). A method of tightening the pipe P with the cylindrical member (5) to bring the inner surface of the cylindrical member (5) into close contact with the pipe P, thereby closing a gap between the hole (11) of the abrasive material recovery housing (1) and the pipe P. .

研掃材回収筺（１）の壁面の孔（１１）にパイプＰを挿入し、パイプ内面に研掃材を噴射させてパイプＰ内面を研掃する装置において、パイプＰが径方向に余裕のある状態に嵌まる大きさに形成され、一端が研掃材回収筺（１）に孔（１１）と略同心に固定された可撓性筒部材（５）と、該筒部材（５）の自由端を筒部材（５）の周方向に回わして筒部材（５）を捻った状態で保持する保持手段（６）を具えたパイプの研掃装置。In a device for inserting the pipe P into the hole (11) on the wall surface of the blasting material recovery housing (1) and injecting the blasting material into the inner surface of the pipe to blast the inner surface of the pipe P, the pipe P has a margin in the radial direction. A flexible tubular member (5) formed to have a size that fits in a certain state, one end of which is fixed substantially concentrically with the hole (11) in the abrasive-cleaning material recovery housing (1); A pipe cleaning device comprising a holding means (6) for holding a cylindrical member (5) in a twisted state by rotating a free end in a circumferential direction of the cylindrical member (5).

筒部材（５）の自由端には、該自由端を一周して容易に変形しないリング状芯金（５３）及び保持手段（６）の一部を成す掛かり孔（５６）又は掛かり片が設けられている請求項２に記載のパイプ外周部の隙間を塞ぐ装置。A free end of the cylindrical member (5) is provided with a ring-shaped core bar (53) that does not easily deform around the free end and a hook hole (56) or a hook piece that forms a part of the holding means (6). The apparatus for closing a gap in an outer peripheral portion of a pipe according to claim 2, which is provided.