JPH0432547Y2 - - Google Patents
Info
- Publication number
- JPH0432547Y2 JPH0432547Y2 JP1987016866U JP1686687U JPH0432547Y2 JP H0432547 Y2 JPH0432547 Y2 JP H0432547Y2 JP 1987016866 U JP1987016866 U JP 1987016866U JP 1686687 U JP1686687 U JP 1686687U JP H0432547 Y2 JPH0432547 Y2 JP H0432547Y2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- fitting
- sealing material
- locking
- fitting part
- 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
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、例えば電線やケーブル等の保護管を
はじめ広範に用いられる伸縮性および可撓性を有
する螺旋管に関する。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a stretchable and flexible spiral tube that is widely used, for example, as a protective tube for electric wires and cables.
（従来の技術）
この種螺旋管としては、例えば実開昭57−
117487号公報に所載のものが知られている。その
螺旋管は、第３図に示すように、一側縁に、二股
状で且つ開口端内縁に抜止部ｂ，ｂが対設された
嵌合部ａを有し、他側縁に、該嵌合部ａ内に摺動
可能に嵌入係止される係止部ｃを有する帯状の合
成樹脂製プロフアイルｄを、螺旋状に巻回すると
ともに、巻回状態において互いに隣合う前記嵌合
部ａと係止部ｃとを嵌合させて筒状に形成してな
り、係止部ｃの嵌合部ａ内壁面と当接する箇所に
軟質シール材ｅを設けたのである。そして、この
ようになる螺旋管は、係止部ｃを嵌合部ａ内にお
いて管の軸方向にスライドさせることにより伸縮
させたり曲げたりすることができ、また、係止部
ｃを嵌合部ａ内において管の周方向にスライドさ
せることにより管径を自由に変化させることがで
き、さらには係止部ｃに設けた軟質シール材ｅに
よつて水密性、気密性を得ることができるもので
ある。(Prior art) As this type of spiral tube, for example,
The one published in Publication No. 117487 is known. As shown in FIG. 3, the spiral tube has a fitting part a on one side edge that is bifurcated and has a retaining part b, b disposed oppositely on the inner edge of the open end, and has a fitting part a on the other side edge. A band-shaped synthetic resin profile d having a locking part c that is slidably fitted and locked into the fitting part a is wound in a spiral shape, and the fitting parts are adjacent to each other in the wound state. A and a locking portion c are fitted to form a cylindrical shape, and a soft sealing material e is provided at a portion of the locking portion c that comes into contact with the inner wall surface of the fitting portion a. Such a spiral tube can be expanded, contracted, or bent by sliding the locking part c in the axial direction of the tube within the fitting part a, and can also be bent by sliding the locking part c in the fitting part The diameter of the pipe can be freely changed by sliding it in the circumferential direction of the pipe within a, and watertightness and airtightness can be obtained by means of the soft sealing material e provided at the locking part c. It is.
（考案が解決しようとする問題点）
しかしながら、上記従来の螺旋管にあつては次
のような問題があつた。(Problems to be Solved by the Invention) However, the conventional spiral tube described above has the following problems.
すなわち、第３図に示した螺旋管にあつては、
嵌合部ａの内壁面と当接する係止部ｃの箇所に軟
質シール材ｅを設けたものであるから、製管時、
軟質シール材ｅが抜止部ｂ，ｂ間を通過する際に
剥がれたり、また、製管後においては係止部ｃと
嵌合部ａの内壁面とが擦れ合うことにより軟質シ
ール材ｅが係止部ｃから剥がれる虞れがあつた。
しかも、この種の螺旋管にあつては、製管時等に
おいて外力が加わると、空洞となつている嵌合部
ａに容易に凹みを生じるが、これを、係止部ｃで
嵌合部ａの中間部を支持することにより阻止しよ
うとしても、係止部ｃと嵌合部ａの内壁面との当
接部分は小断面の軟質シール材ｅであることか
ら、嵌合部ａの変形に伴つて軟質シール材ｅも変
形してしまい、上記凹みを満足に阻止することが
できず、したがつてそのような凹みに起因する管
の周方向の剛性低下を防止することができないと
いつた問題もあつた。つまるところ、この螺旋管
は、常に嵌合部の中間部を内側から支持するもの
ではないため、本質的に周方向の剛性が低いとい
つた問題を有していた。 That is, in the case of the spiral tube shown in Fig. 3,
Since the soft sealing material e is provided at the location of the locking part c that comes into contact with the inner wall surface of the fitting part a, during pipe manufacturing,
The soft sealing material e may peel off when passing between the retaining portions b and b, or the soft sealing material e may become locked due to rubbing between the locking portion c and the inner wall surface of the fitting portion a after pipe manufacturing. There was a risk that it would peel off from part c.
Moreover, in this type of helical tube, when an external force is applied during pipe manufacturing, etc., the hollow fitting part a is easily dented, but this can be fixed by the locking part c. Even if an attempt is made to prevent the deformation of the fitting part a by supporting the middle part of the fitting part a, the contact part between the locking part c and the inner wall surface of the fitting part a is a soft sealing material e with a small cross section. As a result, the soft sealing material e also deforms, making it impossible to satisfactorily prevent the above-mentioned dents. There were also some problems. In short, since this spiral tube does not always support the middle portion of the fitting portion from the inside, it inherently has a problem of low rigidity in the circumferential direction.
また前記実開昭52−96414号公報や特開昭57−
60125号公報に開示された螺旋管にあつては、係
止部全体を軟質シール材で被覆していることか
ら、製管時、係止部が嵌合部の抜止部間を通過し
にくく、このため製管作業性に劣るといつた問題
があつた。しかも、前者と同様、嵌合部の中間部
を常に係止部で支持するものではないから、嵌合
部に凹みが発生し易く、この凹みに起因する管の
周方向の剛性低下を防止することができないとい
つた問題もあつた。 Also, the above-mentioned Utility Model Application Publication No. 52-96414 and Japanese Patent Application Publication No. 57-
In the case of the spiral tube disclosed in Publication No. 60125, since the entire locking part is covered with a soft sealing material, it is difficult for the locking part to pass between the retaining parts of the fitting part during pipe manufacturing. For this reason, there were problems such as poor pipe-making workability. Moreover, like the former, since the intermediate part of the fitting part is not always supported by the locking part, dents are likely to occur in the fitting part, and a decrease in rigidity in the circumferential direction of the pipe due to this dent can be prevented. There were some problems that I was unable to do.
また上記以外にも、例えば実開昭52−96414号
公報や特開昭57−60125号公報に開示された螺旋
管が知られている。 In addition to the above, spiral tubes are known, such as those disclosed in Japanese Utility Model Application Publication No. 52-96414 and Japanese Patent Application Publication No. 57-60125.
この螺旋管は係止部全体を軟質シール材で被覆
するとともに、この軟質シール材に嵌合部の抜止
部を食い込ませ、これによつて、上記の螺旋管と
同様、水密性及び気密性を得ているものである。 In this helical tube, the entire locking part is covered with a soft sealing material, and the retaining part of the fitting part is bitten into this soft sealing material, thereby achieving watertightness and airtightness like the above-mentioned helical tube. That's what you're getting.
（問題点を解決するための手段）
本考案の螺旋管は、一側縁に、二股状で且つ開
口端内縁に抜止部が対設された嵌合部を有し、他
側縁に、該嵌合部内に摺動可能に嵌入係止される
係止部を有する帯状の合成樹脂製プロフアイル
が、螺旋状に巻回されるとともに該巻回状態にお
いて互いに隣合う前記嵌合部と係止部とが嵌合さ
れ筒状に形成されてなる伸縮性および可撓性を有
する螺旋管であつて、前記嵌合部の抜止部と前記
係止部により形成される螺旋状の空間の全長にわ
たつてシール材が介装され、管伸長時、該シール
材によつて係止部の移動距離が規制され嵌合部の
中間部に係止部が位置するようになされたもので
ある。(Means for Solving the Problems) The spiral tube of the present invention has a fitting part on one side edge that is bifurcated and has a retaining part opposite to the inner edge of the open end, and has a fitting part on the other side edge that is bifurcated and has a retaining part opposite to the inner edge of the open end. A band-shaped synthetic resin profile having a locking portion that is slidably fitted and locked into the fitting portion is wound in a spiral manner and is locked with the fitting portions that are adjacent to each other in the wound state. It is a spiral tube having elasticity and flexibility formed into a cylindrical shape by fitting two parts, and the entire length of the spiral space formed by the retaining part of the fitting part and the locking part. A sealing material is interposed across the pipe, and when the tube is extended, the sealing material restricts the movement distance of the locking part so that the locking part is located at the middle of the fitting part.
（作用）
本考案の作用を、本考案の一実施例を示す第１
図および第２図を参照して説明する。(Function) The function of the present invention will be described in the first example showing one embodiment of the present invention.
This will be explained with reference to the figures and FIG.
管伸長時、シール材４によつて係止部２の移動
距離が規制され嵌合部１の中間部に係止部２が位
置することとなり、嵌合部１の中間部が係止部２
により支持される。また管縮退時にあつては、第
２図に示すように、嵌合部１は係止部２に代わつ
てシール材４により支持される。このように、嵌
合部１は常に係止部２とシール材４のいずれかで
支持されることとなり、嵌合部１における変形が
防止され、管の周方向の剛性が確保される。ま
た、このシール材４によつて、嵌合部１の抜止部
１ａ部分から嵌合部１内を経て管内部に水等が侵
入しようとするのが阻止される。 When the tube is extended, the moving distance of the locking part 2 is regulated by the sealing material 4, and the locking part 2 is located at the middle part of the fitting part 1.
Supported by Furthermore, when the tube retracts, the fitting part 1 is supported by the sealing material 4 instead of the locking part 2, as shown in FIG. In this way, the fitting part 1 is always supported by either the locking part 2 or the sealing material 4, preventing deformation in the fitting part 1 and ensuring the rigidity of the tube in the circumferential direction. Moreover, this sealing material 4 prevents water or the like from entering the inside of the pipe through the inside of the fitting part 1 from the retaining part 1a of the fitting part 1.
（実施例）
以下、本考案の一実施例を、図面を参照して説
明する。(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.
第１図は、伸長時における本考案に係る螺旋管
の部分断面図、第２図は、縮退時における同部分
断面図である。 FIG. 1 is a partial cross-sectional view of the helical tube according to the present invention when it is extended, and FIG. 2 is a partial cross-sectional view of the same when it is retracted.
この螺旋管は、一側縁に、二股状で且つ開口端
内縁に抜止部１ａ，１ｂが対設された嵌合部１を
有し、他側縁に、該嵌合部１内に摺動可能に嵌入
係止される係止部２を有する帯状の合成樹脂製プ
ロフアイル３が、螺旋状に巻回されるとともに該
巻回状態において互いに隣合う前記嵌合部１と係
止部２とが嵌合され筒状に形成されてなり、管の
外周面側に位置する嵌合部１の抜止部１ａと、係
止部２とにより形成される螺旋状の空間の全長に
わたつてシール材４が介装され、管伸長時、該シ
ール材４によつて係止部２の移動距離が規制され
嵌合部１の中間部に係止部２が位置するようにな
されたものである。 This spiral tube has a fitting part 1 on one side edge that is bifurcated and has retaining parts 1a and 1b provided oppositely on the inner edge of the opening end, and has a fitting part 1 on the other side edge that can be slid into the fitting part 1. A band-shaped synthetic resin profile 3 having a locking part 2 that can be fitted and locked is spirally wound, and the fitting part 1 and the locking part 2 are adjacent to each other in the wound state. are fitted together to form a cylindrical shape, and the sealing material extends over the entire length of the spiral space formed by the locking part 2 and the retaining part 1a of the fitting part 1 located on the outer peripheral surface side of the tube. 4 is interposed therebetween, and when the tube is expanded, the moving distance of the locking part 2 is regulated by the sealing material 4, so that the locking part 2 is located at the middle part of the fitting part 1.
上記シール材４は、嵌合部１の抜止部１ａ部分
から嵌合部１内を経て管内部に侵入しようとする
水等を阻止するためのものである。このシール材
４としては、一般に水密性、気密性を確保するた
めに用いられる従来公知のゴム製シール材、ある
いは、水と接触することにより体積膨張を起こす
水膨張性ゴム弾性シール材が好適に用いられる。
なお、シール材４はこのようなゴム製に限らず、
他の材質からなるシール材であつてもよい。この
シール材４の幅は、前述したように、管伸長時、
係止部２と当接して嵌合部１の中間部に係止部２
を位置させるような幅になされている。また、シ
ール材４の形状としては、図に示すような断面楕
円形状に限らず、例えば断面四角形状、断面三角
形状、断面多角形状等でもよく、さらに、水密
性、気密性を高めるために外表面が適宜凹凸面と
なされていてもよい。また、シール材４はチユー
ブ状のものであつてもよい。このようになるシー
ル材４は、製管時、係止部２が嵌合部１内に嵌入
されるのと同時に嵌合部１内に挿入されるが、シ
ール材４は、嵌合部１内において管の軸方向に移
動可能となされていても、あるいは係止部２に連
なる嵌入部５に係止部２と当接させて固着されて
いてもよい。後者の場合、シール材４は接着剤を
介して嵌入部５に固着されたものでもよいが、プ
ロフアイル３を押出成形により賦形すると同時に
弾性材料の２層同時押出成形によつて該部に固着
されたものであつてもよい。そして、このシール
材４によつて、管伸長時、係止部２の移動距離が
規制され嵌合部１の中間部に係止部２が位置する
こととなり、嵌合部１の中間部が係止部２により
支持される。また管縮退時にあつては、第２図に
示すように、嵌合部１は係止部２に代わつてシー
ル材４により支持される。このように、嵌合部１
は常に係止部２とシール材４のいずれかで支持さ
れることとなり、嵌合部１における変形が防止さ
れる。なお、シール材４の介装箇所は、管の外周
面側に位置する嵌合部１の抜止部１ａと、係止部
２との間の１箇所に限らず、それに加えて管の内
周面側に位置する嵌合部１の抜止部１ｂと、係止
部２との間にも介装されていてもよい。また、前
記係止部２の形状は、図示例のような三角形状に
も限るものではない。 The sealing material 4 is for preventing water or the like from entering the inside of the pipe from the retaining portion 1a of the fitting portion 1 through the inside of the fitting portion 1. The sealing material 4 is preferably a conventionally known rubber sealing material that is generally used to ensure watertightness and airtightness, or a water-swellable rubber elastic sealing material that expands in volume when it comes into contact with water. used.
Note that the sealing material 4 is not limited to such a rubber material.
The sealing material may be made of other materials. As mentioned above, the width of this sealing material 4 is determined when the tube is expanded.
The locking part 2 is in contact with the locking part 2 and is attached to the middle part of the fitting part 1.
The width is such that it can be positioned. Further, the shape of the sealing material 4 is not limited to the elliptical cross-section shown in the figure, but may also be, for example, a square cross-section, a triangular cross-section, a polygonal cross-section, etc. The surface may be appropriately uneven. Further, the sealing material 4 may be in the shape of a tube. The sealing material 4 having this structure is inserted into the fitting part 1 at the same time as the locking part 2 is fitted into the fitting part 1 during pipe manufacturing. It may be movable in the axial direction of the tube within the tube, or it may be fixed to a fitting part 5 connected to the locking part 2 in contact with the locking part 2. In the latter case, the sealing material 4 may be fixed to the fitting part 5 via an adhesive, but at the same time the profile 3 is shaped by extrusion molding, it is also attached to the part by simultaneous extrusion molding of two layers of elastic material. It may be fixed. The sealing material 4 restricts the moving distance of the locking part 2 when the tube is expanded, and the locking part 2 is located at the middle part of the fitting part 1. It is supported by the locking part 2. Furthermore, when the tube retracts, the fitting part 1 is supported by the sealing material 4 instead of the locking part 2, as shown in FIG. In this way, the fitting part 1
is always supported by either the locking part 2 or the sealing material 4, and deformation of the fitting part 1 is prevented. Note that the interposition of the sealing material 4 is not limited to one location between the retaining portion 1a of the fitting portion 1 located on the outer circumference side of the tube and the locking portion 2, but also at the inner circumference of the tube. It may also be interposed between the retaining part 1b of the fitting part 1 located on the surface side and the locking part 2. Further, the shape of the locking portion 2 is not limited to the triangular shape shown in the illustrated example.
（考案の効果）
以上説明したように、本考案の螺旋管は、嵌合
部の抜止部と係止部により管の外周面側及び内周
面側にそれぞれ形成される螺旋状の空間のうち、
少なくとも管の外周面側に位置する空間の全長に
わたつて、管伸長時には係止部の移動距離を規制
して係止部を嵌合部の中間部に位置させる一方、
管縮退時には嵌合部の中間部を支持して嵌合部の
凹み発生を防止するシール材が介装されたもので
あるから、管伸長時は係止部によつて、管縮退時
はシール材によつて、それぞれ嵌合部の中間部が
支持されることになるので、管がどのような伸縮
状態にあつても嵌合が外力により凹むことがほと
んどなく、プロフアイルの変形を防ぐことがで
き、所望の剛性を得ることができる。また、前記
した従来例のように、製管時においてシール材が
抜止部を通過する際に剥がれたり、製管後におい
て係止部と嵌合部の内壁面とが擦れ合うことによ
つてシール材が剥がれるといつたことがなく、常
に好ましい水密性および気密性を得ることができ
る。(Effect of the invention) As explained above, the spiral tube of the present invention has a helical space formed on the outer peripheral surface side and the inner peripheral surface side of the tube by the retaining part and the locking part of the fitting part. ,
At least over the entire length of the space located on the outer peripheral surface side of the tube, when the tube is extended, the moving distance of the locking portion is restricted so that the locking portion is positioned in the middle of the fitting portion,
A sealing material is inserted to support the middle part of the fitting part and prevent the fitting part from denting when the pipe retracts, so when the pipe is extended, the locking part is used to seal it, and when the pipe retracts, the sealing material is inserted. Since the middle part of each fitting part is supported by the material, no matter how the tube is expanded or contracted, the fitting will hardly be dented by external force, and the profile will be prevented from deforming. , and the desired rigidity can be obtained. In addition, as in the conventional example described above, the sealing material may peel off when passing through the retaining part during pipe manufacturing, or the sealing material may peel off when the retaining part and the inner wall surface of the fitting part rub against each other after pipe manufacturing. There is no problem of peeling, and favorable watertightness and airtightness can always be obtained.
第１図および第２図は本考案に係る螺旋管の一
実施例を示し、第１図は伸長時における螺旋管の
部分断面図、第２図は縮退時における螺旋管の部
分断面図、第３図は従来の螺旋管を示す部分断面
図である。
１……嵌合部、１ａ，１ｂ……抜止部、２……
係止部、３……プロフアイル、４……シール材。
1 and 2 show an embodiment of the helical tube according to the present invention, FIG. 1 is a partial sectional view of the helical tube when it is extended, FIG. 2 is a partial sectional view of the helical tube when it is retracted, and FIG. FIG. 3 is a partial cross-sectional view showing a conventional spiral tube. 1... Fitting part, 1a, 1b... Removal prevention part, 2...
Locking portion, 3...profile, 4...sealing material.
Claims (1)
対設された嵌合部を有し、他側縁に、該嵌合部内
に摺動可能に嵌入係止される係止部を有する帯状
の合成樹脂製プロフアイルが、螺旋状に巻回され
るとともに該巻回状態において互いに隣合う前記
嵌合部と係止部とが嵌合され筒状に形成されてな
る伸縮性および可撓性を有する螺旋管であつて、 前記嵌合部の抜止部と前記係止部により管の外
周面側及び内周面側にそれぞれ形成される螺旋状
の空間のうち、少なくとも管の外周面側に位置す
る空間の全長にわたつて、管伸長時には前記係止
部の移動距離を規制して該係止部を前記嵌合部の
中間部に位置させる一方、管縮退時には前記嵌合
部の中間部を支持して嵌合部の凹み発生を防止す
るシール材が介装されたことを特徴とする螺旋
管。[Claims for Utility Model Registration] One side edge has a fitting part that is bifurcated and has a retaining part opposite to the inner edge of the opening end, and the other side edge has a fitting part that is slidably fitted into the fitting part. A band-shaped synthetic resin profile having a locking portion is wound spirally, and in the wound state, the fitting portion and the locking portion that are adjacent to each other are fitted to form a cylindrical shape. A spiral tube having stretchability and flexibility, wherein a spiral space is formed on the outer peripheral surface side and the inner peripheral surface side of the tube by the retaining part of the fitting part and the locking part, respectively. Among them, at least over the entire length of the space located on the outer circumferential surface side of the tube, when the tube is extended, the moving distance of the locking portion is restricted so that the locking portion is located at an intermediate portion of the fitting portion; A helical tube characterized in that a sealing material is interposed to support the intermediate portion of the fitting portion to prevent the fitting portion from being dented when the tube retracts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987016866U JPH0432547Y2 (en) | 1987-02-06 | 1987-02-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987016866U JPH0432547Y2 (en) | 1987-02-06 | 1987-02-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63125273U JPS63125273U (en) | 1988-08-16 |
| JPH0432547Y2 true JPH0432547Y2 (en) | 1992-08-05 |
Family
ID=30809109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987016866U Expired JPH0432547Y2 (en) | 1987-02-06 | 1987-02-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0432547Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200469324Y1 (en) * | 2011-03-25 | 2013-10-11 | 주식회사 대경산업 | Plastic spiral pipe with tube waterproof packing |
| JP5897338B2 (en) * | 2012-01-19 | 2016-03-30 | タイガースポリマー株式会社 | Synthetic resin flexible tube |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5338893Y2 (en) * | 1976-01-19 | 1978-09-20 | ||
| JPS5760125A (en) * | 1980-09-26 | 1982-04-10 | Ishida Sangyo Kk | Space heater |
-
1987
- 1987-02-06 JP JP1987016866U patent/JPH0432547Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63125273U (en) | 1988-08-16 |
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