JPS6315903B2 - - Google Patents
Info
- Publication number
- JPS6315903B2 JPS6315903B2 JP57200872A JP20087282A JPS6315903B2 JP S6315903 B2 JPS6315903 B2 JP S6315903B2 JP 57200872 A JP57200872 A JP 57200872A JP 20087282 A JP20087282 A JP 20087282A JP S6315903 B2 JPS6315903 B2 JP S6315903B2
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical body
- flexible cylindrical
- cap
- folded
- turned over
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/0014—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for shaping tubes or blown tubular films
- B29C67/0018—Turning tubes inside out
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
本発明は、裏返す必要のある可撓性筒状体例え
ば、消防用ホースや管路の内張り材等の可撓性筒
状体を製造する際に、その製造の都合上、使用状
態とは内外面を逆にして製造した場合において、
その可撓性筒状体を裏返して使用状態とするため
の方法に関するものであつて、裏返し作業を安全
且つ容易に行うと共に裏返す時に可撓性筒状体が
損傷を受けるのを防止することのできる方法を提
供せんとするものである。DETAILED DESCRIPTION OF THE INVENTION The present invention is useful for manufacturing flexible cylindrical bodies that need to be turned inside out, such as flexible cylindrical bodies such as fire hoses and pipe lining materials. Above, when manufactured with the inside and outside surfaces reversed from the used condition,
This invention relates to a method for turning over the flexible cylindrical body to make it ready for use, which makes the turning operation safe and easy and prevents the flexible cylindrical body from being damaged when it is turned over. The aim is to provide a method that can be used.
可撓性筒状体を裏返す方法として、可撓性筒状
体の一端を環状に固定し、該環状固定部分の後部
に流体圧力を作用させ、その環状固定部分に形成
される折り返し部分において可撓性筒状体を内側
が外側となるように反転させつつその折り返し部
分を前進せしめて可撓性筒状体を裏返す方法が知
られている。この方法は作業が容易であり、長尺
の可撓性筒状体を短時間で裏返すことができると
共に、可撓性筒状体が傷つきにくい方法であつ
て、きわめて優れている。しかしながらこの方法
においては、可撓性筒状体の折り返し部分におい
て、未だ裏返されていない部分では扁平に折畳ま
れた状態であつたものが、局部的に急速に丸く膨
らまされると共に反転するのであり、局部的に材
質に歪が生じる。特にナイロンのような比較的剛
性を有する材質が用いられている場合や、冬期な
どにおいて気温が低い場合においては、可撓性筒
状体が白化現象を起こすことが少なくない。 As a method for turning over a flexible cylindrical body, one end of the flexible cylindrical body is fixed in an annular shape, fluid pressure is applied to the rear part of the annular fixed part, and the folded part formed in the annular fixed part is turned over. A known method is to turn the flexible cylindrical body over by inverting the flexible cylindrical body so that the inside becomes the outside and moving the folded portion forward. This method is easy to work with, allows a long flexible cylindrical body to be turned over in a short time, and is a method that does not easily damage the flexible cylindrical body, so it is extremely excellent. However, in this method, in the folded part of the flexible cylindrical body, the part that has not yet been turned over is in a flat folded state, but is locally rapidly expanded into a round shape and turned over. Yes, local distortion occurs in the material. In particular, when a relatively rigid material such as nylon is used, or when the temperature is low, such as in winter, the flexible cylindrical body often suffers from whitening.
特公昭49−22552号は、先に本件出願人の出願
に係るものであつて、該公報には、前記可撓性筒
状体の裏返し方法において、折り返し部分にキヤ
ツプ（誘導装置）を嵌合し、折り返し部分の進行
に伴つてキヤツプを前進せしめ、裏返し作業中に
可撓性筒状体の蛇行を防止する方法が記載されて
いる。而して本発明はこの方法を改良し、キヤツ
プを加温することにより可撓性筒状体の折り返し
部分を加温し、可撓性筒状体が折り返し部分にお
ける反転時に、白化現象などにより損傷するのを
防止せんとするものである。 Japanese Patent Publication No. 49-22552 was previously filed by the applicant, and the publication describes a method for turning over the flexible cylindrical body, in which a cap (guiding device) is fitted to the folded part. However, a method is described in which the cap is advanced as the folding portion progresses to prevent the flexible cylindrical body from meandering during the turning operation. Therefore, the present invention improves this method and heats the folded portion of the flexible cylindrical body by heating the cap, and when the flexible cylindrical body is turned over at the folded portion, whitening occurs. The purpose is to prevent damage.
図面は本発明の実施状態を示すものであつて、
１は可撓性筒状体であつて、コイル状に巻回され
圧力容器２内に収熱されている。圧力容器２には
ノズル３が設けられ、該ノズル３の先端に、可撓
性筒状体１の一端が環状に固定されている。４は
圧力流体の導入口であつて、ヒーター５を介して
ブロア６に接続されている。ブロア６から加圧空
気を送り出し、ヒーター５で加温して圧力容器２
内に送入すると、可撓性筒状体１の環状固定部分
の後部に外側から圧力が作用し、折り返し部分１
ａが形成され、可撓性筒状体１は折り返し部分１
ａにおいて順次内側が外側となるよう反転し、折
り返し部分１ａは前進する。７は折り返し部分１
ａに嵌合されたキヤツプであつて、断面略凹字状
をなしており、外周には断熱材よりなる外殻８が
形成され、内周には、金属などの熱伝導性の良好
な内壁９が設けられ、該内壁９の内周面はフツ素
樹脂などの滑り易い材質で形成されている。又外
殻８と内壁９との間には空隙１０が形成され、該
空隙１０内には温湯が封入されている。１１はキ
ヤツプ７の下部に取りつけられた車輪である。 The drawings show the state of implementation of the invention, and
Reference numeral 1 denotes a flexible cylindrical body, which is wound into a coil shape and heat is absorbed into the pressure vessel 2 . The pressure vessel 2 is provided with a nozzle 3, and one end of a flexible cylindrical body 1 is fixed to the tip of the nozzle 3 in an annular shape. Reference numeral 4 denotes a pressure fluid inlet, which is connected to a blower 6 via a heater 5. Pressurized air is sent out from the blower 6, heated by the heater 5, and then transferred to the pressure vessel 2.
When the flexible cylindrical body 1 is fed into the inside, pressure is applied from the outside to the rear part of the annular fixed part of the flexible cylindrical body 1, and the folded part 1
a is formed, and the flexible cylindrical body 1 has a folded part 1
At point a, it is sequentially reversed so that the inside becomes the outside, and the folded portion 1a moves forward. 7 is the folded part 1
The cap is fitted with a, and has a generally concave cross section, and has an outer shell 8 made of a heat insulating material on its outer periphery, and an inner wall made of metal or other material with good thermal conductivity on its inner periphery. 9 is provided, and the inner circumferential surface of the inner wall 9 is formed of a slippery material such as fluororesin. Further, a gap 10 is formed between the outer shell 8 and the inner wall 9, and hot water is sealed in the gap 10. 11 is a wheel attached to the lower part of the cap 7.
而して、可撓性筒状体１の裏返りが進行し、折
り返し部分１ａが進行するのに伴い、キヤツプ７
は折り返し部分１ａに押されて支持台１２上を前
進し、折り返し部分１ａの進行方向を誘導する。
又、キヤツプ７の空隙１０内には温湯が封入され
ているので、可撓性筒状体１の折り返し部分１ａ
が加温され柔かくなつて、折り返し部分１ａでの
反転がスムーズに行われるようになると共に、白
化現象などを起こして損傷を生ずることがない。
従つて、ナイロンのような比較的剛性を有する材
質であつても、又気温が低い時期であつても可撓
性筒状体を容易に且つ損傷を生ずることなく裏返
すことができるのである。 As the flexible cylindrical body 1 is turned over and the folded portion 1a progresses, the cap 7
is pushed by the folded portion 1a and moves forward on the support base 12, guiding the direction of movement of the folded portion 1a.
Also, since hot water is sealed in the cavity 10 of the cap 7, the folded portion 1a of the flexible cylindrical body 1
The material is warmed and becomes soft, so that the material can be turned over smoothly at the folded portion 1a, and there is no possibility of damage due to whitening or the like.
Therefore, even when the flexible cylindrical body is made of a relatively rigid material such as nylon, and even at low temperatures, the flexible cylindrical body can be easily turned over without causing damage.
なお、先の実施例においては、加圧空気をヒー
ター５で加温して圧力容器２に導入し、この加温
空気で可撓性筒状体１を裏返している。常温の空
気で裏返しても良いのであるが、特に寒冷期にお
いてはキヤツプ７による加温のみでは充分でない
場合があり、加温空気で可撓性筒状体１をある程
度予熱しておき、これを折り返し部分１ａに供給
してキヤツプ７でさらに加温しつつ反転させるの
がよい。なお、加温空気によつて可撓性筒状体を
加温し、それによつてキヤツプ７を使用すること
なく可撓性筒状体をスムーズに裏返すことは、不
可能ではないが好ましくない。なぜならば、既に
裏返された可撓性筒状体１ｂは内圧が加わつて丸
く膨んだ状態であるが、これが加温され、必要以
上に柔かい状態では、内圧により変形する可能性
がある。しかも既に裏返された可撓性筒状体１ｂ
内を未だ裏返されていない可撓性筒状体１ｃが通
過する際に摩擦され、傷つき易くなるのである。
又、これらの事態が生じることがない程度に加温
空気の温度が低いと、スムーズに損傷を生ずるこ
となく裏返すのが困難である。従つて、加温空気
を用いる場合にも、可撓性筒状体が変形したり損
傷したりすることがない程度に低い温度の加温空
気を使用し、キヤツプ７により充分に加温してス
ムーズに反転せしめるのが良いのである。 In the previous embodiment, pressurized air is heated by the heater 5 and introduced into the pressure vessel 2, and the flexible cylindrical body 1 is turned over with this heated air. It is possible to turn the flexible cylindrical body 1 over with air at room temperature, but heating by the cap 7 alone may not be sufficient, especially in cold seasons. It is preferable to supply the material to the folded portion 1a and further heat it in the cap 7 while inverting it. Although it is not possible to heat the flexible cylindrical body with heated air and thereby smoothly turn the flexible cylindrical body over without using the cap 7, it is not preferable. This is because the flexible cylindrical body 1b that has already been turned over is in a rounded state due to the application of internal pressure, but if it is heated and becomes softer than necessary, it may be deformed by the internal pressure. Moreover, the flexible cylindrical body 1b has already been turned over.
When the flexible cylindrical body 1c, which has not yet been turned inside out, passes through, it is rubbed and easily damaged.
Furthermore, if the temperature of the heated air is low enough to prevent these situations from occurring, it is difficult to turn over smoothly without causing damage. Therefore, even when using heated air, the temperature of the heated air is low enough to prevent deformation or damage to the flexible cylindrical body, and the air is sufficiently heated by the cap 7. It is better to reverse it smoothly.
本発明において使用するキヤツプ７の加温手段
は、先の実施例のように温湯を封入してもよく、
又電熱ヒーターを使用して加温することも可能で
ある。 The heating means for the cap 7 used in the present invention may be filled with hot water as in the previous embodiment.
It is also possible to heat using an electric heater.
図面は本発明の方法により可撓性筒状体を裏返
す状態を示す中央縦断面図である。
１……可撓性筒状体、１ａ……折り返し部分、
２……圧力容器、７……キヤツプ。
The drawing is a central vertical sectional view showing a state in which a flexible cylindrical body is turned over by the method of the present invention. 1... Flexible cylindrical body, 1a... Folded part,
2...Pressure vessel, 7...Cap.
Claims (1)
固定部分の後部に流体圧力を作用させ、その環状
固定部分に形成される折り返し部分において可撓
性筒状体を内側が外側となるように反転させつつ
その折り返し部分を前進せしめ、可撓性筒状体を
裏返す方法において、その可撓性筒状体の折り返
し部分に加温されたキヤツプを嵌合し、前記折り
返し部分の進行に伴つてキヤツプを前進せしめる
ことを特徴とする可撓性筒状体の裏返し方法。1 One end of a flexible cylindrical body is fixed in an annular shape, fluid pressure is applied to the rear part of the annular fixed part, and the inside of the flexible cylindrical body becomes the outside at the folded part formed on the annular fixed part. In this method, a heated cap is fitted to the folded part of the flexible cylindrical body, and the folded part advances. 1. A method for turning over a flexible cylindrical body, characterized by moving a cap forward as the cap moves forward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20087282A JPS5991017A (en) | 1982-11-15 | 1982-11-15 | Turn-inside-out flexible tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20087282A JPS5991017A (en) | 1982-11-15 | 1982-11-15 | Turn-inside-out flexible tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5991017A JPS5991017A (en) | 1984-05-25 |
| JPS6315903B2 true JPS6315903B2 (en) | 1988-04-06 |
Family
ID=16431632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20087282A Granted JPS5991017A (en) | 1982-11-15 | 1982-11-15 | Turn-inside-out flexible tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5991017A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01157602U (en) * | 1988-04-18 | 1989-10-31 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5815938B2 (en) * | 2010-12-09 | 2015-11-17 | 芦森工業株式会社 | Pipeline lining method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51139873A (en) * | 1975-05-29 | 1976-12-02 | Tokyo Printing Ink Mfg Co Ltd | Method of coating inside of pipe with tubular film |
-
1982
- 1982-11-15 JP JP20087282A patent/JPS5991017A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01157602U (en) * | 1988-04-18 | 1989-10-31 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5991017A (en) | 1984-05-25 |
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