JPH059106Y2

JPH059106Y2 -

Info

Publication number: JPH059106Y2
Application number: JP4451489U
Authority: JP
Priority date: 1989-04-18
Filing date: 1989-04-18
Publication date: 1993-03-05
Anticipated expiration: 2003-03-05
Also published as: JPH02137985U

Description

【考案の詳細な説明】（産業上の利用分野）本考案は、パイプ内壁面に付着したスケールや
バルク状異物を除去するスイーパ用のピンに関す
る。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a pin for a sweeper that removes scale and bulk foreign matter adhering to the inner wall surface of a pipe.

（従来技術）特公昭58−36634号公報に開示される如く、ス
イーパ（又はピグとも呼ばれる）は、パイプ内に
圧入され、該スイーパの前後の圧力差によつてパ
イプ内を通過し、パイプ内壁面のスケール或いは
バルク状異物を除去している。(Prior art) As disclosed in Japanese Patent Publication No. 58-36634, a sweeper (also called a pig) is press-fitted into a pipe, and is passed through the pipe by the pressure difference before and after the sweeper. Removes scale or bulk foreign matter from the wall surface.

従来のスイーパは、硬質のゴム又は合成樹脂で
成形されているので、パイプ清掃後のスイーパ表
面の損傷が多く、長く配管されたパイプの清掃或
いは硬質のスケール或いはバルク状異物の除去に
は不向きである。この改善のため、スイーパ表面
に金属製部材を固定することが成されている。 Since conventional sweepers are molded from hard rubber or synthetic resin, the sweeper surface is often damaged after pipe cleaning, making them unsuitable for cleaning long pipes or removing hard scale or bulk foreign matter. be. To improve this, a metal member is fixed to the sweeper surface.

（本考案が解決しようとする課題）そこで、実公昭58−45831号公報に開示される
如く、ピンのヘツド部に丸型頭の山を設け、この
山の外面に格子状の溝を予め切設しておこくとが
成される。このピンは、曲管内と云えども、パイ
プ内壁面に追従し、スケールやバルク状異物の除
去に効果的である。(Problem to be solved by the present invention) Therefore, as disclosed in Japanese Utility Model Publication No. 58-45831, a round-headed ridge is provided on the head of the pin, and lattice-shaped grooves are cut in advance on the outer surface of this ridge. The plans set forth are accomplished. This pin follows the inner wall surface of the pipe even in a curved pipe, and is effective in removing scale and bulk foreign matter.

一方、ピンは硬質のもので耐摩耗性に秀れてい
るとは云え、繰り返し使用によりヘツドの進行方
向前部の摩耗が後部より相当大きく、やがては、
スケールやバルク状異物の除去効率を低下させ
る。しかしながら、このピンは高価であるから、
ピンヘツドの前部の部分摩耗のみでスイーパを廃
棄するのは経済的でなく、その改善が望まれてい
る。 On the other hand, although the pin is hard and has excellent wear resistance, due to repeated use, the front part of the head in the direction of movement will wear out considerably more than the rear part, and eventually,
Decreases the removal efficiency of scale and bulk foreign matter. However, since this pin is expensive,
It is not economical to discard the sweeper only due to partial wear of the front part of the pin head, and an improvement is desired.

それ故に、本考案は、前述した従来技術の不具
合を解消させることを解決すべき課題とする。 Therefore, the present invention aims to solve the problems of the prior art described above.

（課題を解決するための手段）本考案は、前述した課題を解決するために、基
本的にはヘツドにＨ型部を設ける手段を採用する
が、より具体的には、スイーパ本体に打込まれる
ピンにおいて、該ピンがスイーパ本体内に入るア
ンカー部と、スイーパ本体の外表面上に露出する
ヘツド部とを有し、該ヘツド部が底部と一体のＨ
型部を備えることを特徴とするスイーパ用ピンを
提供する。(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention basically adopts a means of providing an H-shaped part in the head, but more specifically, it adopts a means of providing an H-shaped part in the sweeper body. The pin has an anchor portion that is inserted into the sweeper body, and a head portion that is exposed on the outer surface of the sweeper body, and the head portion is attached to an H that is integral with the bottom portion.
A sweeper pin is provided, which is characterized by having a molded part.

より好ましくは、Ｈ型部の対向壁を結ぶ中央壁
が底部に向つたテーパ壁となつており、該対向壁
がスイーパ進行方向に直交する方向に向く手段を
採用する。 More preferably, a means is adopted in which the central wall connecting the opposing walls of the H-shaped part is a tapered wall facing the bottom, and the opposing wall faces in a direction perpendicular to the direction of movement of the sweeper.

（作用）ピンヘツドのＨ型部は対向壁の夫々の前縁即ち
２ケ所でパイプ内壁に接し、使用に伴いこの２ケ
所が他より多く摩耗する。しかし、ある程度の摩
耗が生じた時、このピンの前後を逆にする。この
結果、対向壁の摩耗していない縁が前縁となる。
新たな前縁がある程度摩耗したら再び向きを逆に
し、Ｈ型部が無くなる迄ピンを使用する。(Function) The H-shaped portion of the pin head contacts the inner wall of the pipe at two locations, that is, at each front edge of the opposing wall, and with use, these two locations wear more than the others. However, when a certain amount of wear occurs, this pin is reversed. As a result, the unworn edge of the opposing wall becomes the leading edge.
Once the new leading edge has worn to some extent, reverse the direction again and use the pin until the H-shaped part disappears.

（実施例）第１図にスイーパ１の一部を示すが、円筒状の
スイーパ１は、発泡ポリウレタン等の弾性材で形
成された本体２と、清掃されようとするパイプの
素材ほど硬くなく、パイプ内壁より除去されるス
ケールやスラグ等より多少硬い金属、たとえば、
鉄基材料からなるピン３とを有す。(Example) A part of the sweeper 1 is shown in FIG. 1, and the cylindrical sweeper 1 has a main body 2 made of an elastic material such as foamed polyurethane, and a material that is not as hard as the material of the pipe to be cleaned. Metals that are somewhat harder than scale and slag removed from the inner wall of the pipe, such as
It has a pin 3 made of iron-based material.

ピン３は、スイーパ本体２内に打込まれ且つピ
ン３の抜けを防止するアンカー部４と、スイーパ
本体２の外表面上に露出するヘツド部５と、アン
カー部４とヘツド部５を結ぶ軸部６とからなる。 The pin 3 includes an anchor part 4 that is driven into the sweeper body 2 and prevents the pin 3 from coming off, a head part 5 that is exposed on the outer surface of the sweeper body 2, and a shaft that connects the anchor part 4 and the head part 5. It consists of part 6.

ヘツド部５は、下部の方形の底部７と、これと
一体のＨ型部８とよりなり、Ｈ型部８が対向壁
９，１０とその間を結ぶ中央壁１１とからなり、
対向壁９，１０の向い合う壁面並びに中央壁１１
の側方壁面とが底部７方向にその巾を小さくする
テーパ壁となつている。 The head part 5 consists of a lower rectangular bottom part 7 and an H-shaped part 8 integrated therewith, and the H-shaped part 8 consists of opposing walls 9 and 10 and a central wall 11 connecting them.
Opposing wall surfaces of the opposing walls 9 and 10 and the center wall 11
The side wall surface of the bottom portion 7 is a tapered wall whose width decreases in the direction of the bottom portion 7.

ピン３を所定数本体２に打込み、矢印方向へと
パイプに送給すると、パイプ内壁との摩擦から対
向壁９，１０のＡの縁が後方へひきずられるため
摩耗する。しかし、Ｂの縁はほとんど摩耗しな
い。Ａの縁の摩耗が所定値に達したら、Ｂの縁が
矢印方向の前方となるようピン３の向きを変え
る。Ｂの縁の摩耗が所定値に達したら、再び、Ａ
の縁を前方となるようピン３の向きを変える。こ
のようにＡとＢの縁を順次前方向にくるようにそ
の向きを変え、Ｈ型部８が無くなり、底部７のみ
になる迄くり返し使用する。 When a predetermined number of pins 3 are driven into the main body 2 and fed into the pipe in the direction of the arrow, the edges A of the opposing walls 9 and 10 are dragged backward due to friction with the inner wall of the pipe, causing wear. However, the edges of B hardly wear out. When the wear of the edge of A reaches a predetermined value, change the direction of the pin 3 so that the edge of B is forward in the direction of the arrow. When the wear on the edge of B reaches a predetermined value, A
Change the direction of pin 3 so that the edge is facing forward. In this way, change the direction so that the edges of A and B are facing forward one after another, and use it repeatedly until the H-shaped part 8 disappears and only the bottom part 7 remains.

（効果）本考案のピンは、実際の使用時２ケ所の縁でパ
イプ内壁に強く接するので、スケール等の除去効
率が高く且つ何回もその向きを変えることで使用
可能なため経済的である。(Effects) During actual use, the pin of this invention strongly contacts the inner wall of the pipe at two edges, so it is highly efficient in removing scale, etc., and can be used many times by changing its direction, making it economical. .

[Brief explanation of the drawing]

第１図は本考案の一例の側面図、第２図はピン
のヘツド部の斜視図である。図中、２……スイーパ本体、３……ピン、４…
…アンカー部、５……ヘツド部、７……底部、８
……Ｈ型部、９，１０……対向壁、１１……中央
壁。 FIG. 1 is a side view of an example of the present invention, and FIG. 2 is a perspective view of the head of the pin. In the figure, 2... sweeper body, 3... pin, 4...
...Anchor part, 5...Head part, 7...Bottom part, 8
...H-shaped part, 9, 10... Opposing wall, 11... Center wall.

Claims

[Claims for Utility Model Registration] (1) A pin driven into the sweeper body, the pin having an anchor portion that enters into the sweeper body and a head portion exposed on the outer surface of the sweeper body; A sweeper pin characterized by having an H-shaped part that is integral with the bottom part. (2) The sweeper pin according to claim (1), wherein the center wall connecting the opposing walls of the H-shaped portion is a tapered wall facing the bottom, and the opposing wall faces in a direction perpendicular to the direction of movement of the sweeper.