JPH08145247A - Flexible tube - Google Patents
Flexible tubeInfo
- Publication number
- JPH08145247A JPH08145247A JP28323494A JP28323494A JPH08145247A JP H08145247 A JPH08145247 A JP H08145247A JP 28323494 A JP28323494 A JP 28323494A JP 28323494 A JP28323494 A JP 28323494A JP H08145247 A JPH08145247 A JP H08145247A
- Authority
- JP
- Japan
- Prior art keywords
- flexible tube
- fitting
- maximum
- present
- annular body
- 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.)
- Pending
Links
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
(57)【要約】
【目的】 一層小さな曲率半径で湾曲させることのでき
る可撓性管を提供するにある。
【構成】 一側縁に、二股状で開口端内縁に抜け止め部
１１が対設された嵌合部１２が設けられ、他側縁に、こ
の嵌合部内に摺動可能に嵌合係止される係止部１３が設
けられた環状体１の多数個を重ね合わせ、隣り合う嵌合
部１２と係止部１３とを嵌合させて管状に形成された伸
縮性及び可撓性を有する可撓性管であって、各環状体
１、１・・はその一部を極大部１４とし、極大部１４と
対向する他の部分を極小部１５とし、極大部１４から極
小部１５にかけてその幅寸法Ｗが次第に縮小されてい
る。
(57) [Summary] [Object] To provide a flexible tube that can be bent with a smaller radius of curvature. [Structure] A fitting portion 12 is provided at one side edge and has a bifurcated shape and a retaining portion 11 is provided opposite to the inner edge of the opening end. The other side edge is slidably fitted and locked in the fitting portion. A plurality of annular bodies 1 each provided with a locking portion 13 are overlapped with each other, and adjacent fitting portions 12 and locking portions 13 are fitted to each other to form a tubular shape having elasticity and flexibility. Each of the annular bodies 1, 1, ... Is a flexible tube, and a part of the annular body 1, 1 ... Is a maximum portion 14, and another portion facing the maximum portion 14 is a minimum portion 15. The width dimension W is gradually reduced.
Description
【０００１】[0001]
【産業上の利用分野】本発明は、可撓性管に関する。FIELD OF THE INVENTION This invention relates to flexible tubing.
【０００２】[0002]
【従来の技術】従来、例えば、実開昭６３−１０１３８
４号公報に記載されているように、一側縁に、二股状で
開口端内縁に抜け止め部が対設された嵌合部が設けら
れ、他側縁に、この嵌合部内に摺動可能に嵌合係止され
る係止部が設けられた帯状のプロファイルを螺旋状に巻
回し、巻回状態において、互いに隣り合う嵌合部と係止
部とを嵌合させて管状に形成した伸縮性及び可撓性を有
する可撓性管が知られている。2. Description of the Related Art Conventionally, for example, Japanese Utility Model Laid-Open No. 63-10138.
As described in Japanese Patent Publication No. 4, a fitting portion having a bifurcated shape and a retaining portion facing the inner edge of the opening is provided at one side edge, and the other side edge slides into the fitting portion. A strip-shaped profile provided with a locking portion that can be fitted and locked as much as possible is spirally wound, and in the wound state, a fitting portion and a locking portion that are adjacent to each other are fitted to form a tubular shape. Flexible tubes having stretchability and flexibility are known.
【０００３】このような可撓性管においては、可撓性管
を湾曲させたときは、湾曲された可撓性管の外側の部分
の係止部が嵌合部内の入口付近にあり、可撓性管の内側
の部分の係止部が嵌合部内の奥部に挿入された状態とな
る。In such a flexible tube, when the flexible tube is bent, the engaging portion of the outer portion of the bent flexible tube is near the entrance in the fitting portion, The locking portion of the inner portion of the flexible tube is in a state of being inserted into the inner portion of the fitting portion.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、叙上の
従来の可撓性管においては、帯状のプロファイルの幅寸
法が一定であるため、湾曲された可撓性管の外側の部分
の係止部が嵌合部内の入口に最も近い位置にあり、可撓
性管の内側の部分の係止部が嵌合部内の最も奥部に挿入
された状態では、可撓性管を更に一層小さな曲率半径で
湾曲させることは不可能である。However, in the above-mentioned conventional flexible tube, since the width dimension of the strip-shaped profile is constant, the locking portion of the outer portion of the curved flexible tube is formed. Is closer to the inlet in the fitting part, and the locking part of the inner part of the flexible tube is inserted deepest in the fitting part, the flexible tube has a smaller radius of curvature. It is impossible to bend at.
【０００５】本発明は、従来の可撓性管のこのような問
題点に着目してなされたものであり、その目的とすると
ころは、従来の可撓性管の問題点を解決し、一層小さな
曲率半径で湾曲させることのできる可撓性管を提供する
にある。The present invention has been made by paying attention to such problems of the conventional flexible tube, and the purpose thereof is to solve the problems of the conventional flexible tube, It is to provide a flexible tube that can be bent with a small radius of curvature.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成する為
に、本発明の可撓性管は、一側縁に、二股状で開口端内
縁に抜け止め部が対設された嵌合部が設けられ、他側縁
に、この嵌合部内に摺動可能に嵌合係止される係止部が
設けられた環状体の多数個を重ね合わせ、隣り合う嵌合
部と係止部とを嵌合させて管状に形成された伸縮性及び
可撓性を有する可撓性管であって、各環状体はその一部
を極大部とし、極大部と対向する他の部分を極小部と
し、極大部から極小部にかけてその幅寸法が次第に縮小
されていることを特徴とするものである。In order to achieve the above object, the flexible tube of the present invention has a fitting portion in which one side edge is bifurcated and a retaining portion is formed opposite to the inner edge of the opening end. A large number of annular bodies, each of which is provided with a locking portion that is slidably fitted and locked in the fitting portion on the other side edge, are overlapped to form an adjacent fitting portion and locking portion. A flexible tube having elasticity and flexibility formed into a tubular shape by fitting, each annular body has a part as a maximum part, and the other part facing the maximum part as a minimum part, The width dimension is gradually reduced from the maximum portion to the minimum portion.
【０００７】本発明において、環状体の材質としては、
特に限定されるものではないが、例えば、硬質塩化ビニ
ル樹脂、ポリエチレン、ポリプロピレン、ナイロン等の
合成樹脂が好適である。In the present invention, as the material of the annular body,
Although not particularly limited, for example, a hard vinyl chloride resin, a synthetic resin such as polyethylene, polypropylene, or nylon is suitable.
【０００８】[0008]
【作用】本発明の可撓性管においては、各環状体はその
一極部から対向する他極部にかけて幅寸法が次第に縮小
されているので、幅寸法が最も小さい他極部が内側とな
るように可撓性管を湾曲することにより一定寸法幅の環
状体を使用する場合に比較して小さな曲率半径により湾
曲できる。In the flexible tube of the present invention, the width dimension of each annular body is gradually reduced from one pole portion to the opposite other pole portion, so that the other pole portion having the smallest width dimension is the inner side. By thus bending the flexible tube, it is possible to bend with a small radius of curvature as compared with the case of using an annular body having a constant width.
【０００９】[0009]
【実施例】以下に本発明の実施例を図について説明す
る。 〔実施例１〕図１は本発明可撓性管の一例を示す断面図
である。Embodiments of the present invention will be described below with reference to the drawings. [Embodiment 1] FIG. 1 is a sectional view showing an example of the flexible tube of the present invention.
【００１０】図１において、Ａは本発明可撓性管であ
り、１、１・・は、本発明可撓性管Ａを構成する硬質塩
化ビニル樹脂製環状体であり、図２においても示すよう
に、各環状体１、１・・の一側縁に、二股状で開口端内
縁に抜け止め部としての凸部１１が対設された嵌合部１
２が設けられ、他側縁に、この嵌合部１２内に摺動可能
に嵌合係止される断面矢印形状の係止部１３が設けられ
ている。In FIG. 1, A is a flexible pipe of the present invention, and 1, 1 ... Are hard vinyl chloride resin annular bodies that compose the flexible pipe A of the present invention. Also shown in FIG. As described above, the fitting portion 1 in which a convex portion 11 as a retaining portion is provided in a bifurcated shape at the inner edge of each annular body 1, 1 ...
2 is provided, and a locking portion 13 having a cross-section arrow shape that is slidably fitted and locked in the fitting portion 12 is provided on the other side edge.
【００１１】各環状体１、１・・の一部を極大部１４と
し、極大部１４と対向する他の一部を極小部１５とし、
極大部１４から極小部１５にかけてその幅寸法Ｗが次第
に縮小されている。A part of each annular body 1, 1 ... Is a maximum part 14, and another part facing the maximum part 14 is a minimum part 15,
The width dimension W is gradually reduced from the maximum portion 14 to the minimum portion 15.
【００１２】本発明可撓性管Ａは多数個の環状体１、１
・・が重ね合わされ、隣り合う嵌合部１２と係止部１３
とが嵌合されて管状に形成されている。本発明可撓性管
Ａの外径Ｄ1 は１７０ｍｍ、内径Ｄ2 は１５０ｍｍ、極
大部１４の幅Ｗ0 は３５ｍｍ、嵌合部１２の平行部の長
さＭ1 は１２ｍｍ、係止部１３の平行部の長さＭ2 は８
ｍｍ、極小部１５の嵌合部１２の平行部の長さＮ1 は８
ｍｍ、係止部１３の平行部の長さＮ2 は４ｍｍである。The flexible tube A of the present invention comprises a large number of annular bodies 1, 1.
.. are overlapped with each other, and the adjacent fitting portion 12 and locking portion 13
And are fitted together to form a tubular shape. The outer diameter D 1 of the flexible tube A of the present invention is 170 mm, the inner diameter D 2 is 150 mm, the width W 0 of the maximum portion 14 is 35 mm, the length M 1 of the parallel portion of the fitting portion 12 is 12 mm, the locking portion 13 The length M 2 of the parallel part of is 8
mm, the length N 1 of the parallel portion of the fitting portion 12 of the minimum portion 15 is 8
mm, the length N 2 of the parallel portion of the locking portion 13 is 4 mm.
【００１３】〔実施例１の作用〕次に図１に示す本発明
可撓性管Ａの作用について説明する。各環状体１、１・
・の極大部１４から極小部１５にかけてその幅寸法Ｗが
次第に縮小されているので、図１に示すように、極大部
１４において嵌合部１２内の奥部付近に係止部１３を挿
入し、極小部１５において、嵌合部１２内の入口付近に
係止部１３を挿入することにより本発明可撓性管Ａをほ
ぼ直管状とすることができる。[Operation of Embodiment 1] Next, the operation of the flexible tube A of the present invention shown in FIG. 1 will be described. Each annular body 1, 1,
Since the width dimension W is gradually reduced from the maximum portion 14 to the minimum portion 15, the locking portion 13 is inserted in the maximum portion 14 near the inner portion of the fitting portion 12 as shown in FIG. By inserting the locking portion 13 near the entrance in the fitting portion 12 in the minimal portion 15, the flexible tube A of the present invention can be formed into a substantially straight tube.
【００１４】又、図１に示すように、極大部１４におい
て嵌合部１２内の奥部付近に係止部１３を挿入した場合
の各環状体１、１・・間のピッチが２０ｍｍとすると、
極大部１４は係止部１３の平行部の長さＭ2 ＝８ｍｍを
ストロークとして、２０〜２８ｍｍの範囲でピッチが変
化できる。同様に極小部１５においては、図３に示すよ
うに、嵌合部１２内の最も奥部に係止部１３を挿入した
場合の各環状体１、１・・間のピッチが１６ｍｍとする
と、極小部１５は係止部１３の平行部の長さＮ 2 ＝４ｍ
ｍをストロークとして、１６〜２０ｍｍの範囲でピッチ
が変化できる。In addition, as shown in FIG.
When the locking portion 13 is inserted near the inside of the fitting portion 12
If the pitch between the annular bodies 1, 1, ... Is 20 mm,
The maximum portion 14 is the length M of the parallel portion of the locking portion 13.2= 8 mm
As the stroke, the pitch changes within the range of 20-28 mm.
Can be converted. Similarly, in the minimum portion 15, as shown in FIG.
As described above, the locking portion 13 is inserted in the innermost portion of the fitting portion 12.
In this case, the pitch between the annular members 1, 1 ... Is 16 mm.
And the minimum portion 15 is the length N of the parallel portion of the locking portion 13. 2= 4m
Pitch in the range of 16 to 20 mm, where m is the stroke
Can change.
【００１５】図３に示すように、各環状体１、１・・の
極大部１４において嵌合部１２内の最も入口に接近した
位置に係止部１３を挿入し、極小部１５において、嵌合
部１２内の最も奥部に係止部１３を挿入することにより
本発明可撓性管Ａを最小の曲率半径で湾曲することがで
きる。As shown in FIG. 3, the locking portion 13 is inserted into the maximum portion 14 of each annular body 1, 1 ... The flexible tube A of the present invention can be curved with a minimum radius of curvature by inserting the locking portion 13 into the innermost portion of the joint portion 12.
【００１６】この曲率半径Ｒは次式により求めることが
でき、約２９５ｍｍとなる。 Ｒ＝Ｄ1 ／２×Ｌ0 ＋Ｌ1 ／Ｌ0 −Ｌ1 尚、Ｌ0 は極大部１４における円弧の長さ Ｌ1 は極小部１５における円弧の長さThe radius of curvature R can be obtained by the following equation and is about 295 mm. R = D 1/2 × L 0 + L 1 / L 0 -L 1 Note, L 0 is the length of the arc in the length L 1 of the arc at the maximum 14 minimum portion 15
【００１７】これに対し、図６に示すように、環状体の
幅Ｗが一定であって、その大きさが極大部１４の幅寸法
Ｗ0 と同一の大きさの環状体１ａを使用した場合には、
湾曲された可撓性管の外側のピッチが２８ｍｍ、内側の
ピッチが２０ｍｍとなり、曲率半径Ｒは７２０ｍｍにし
かならならず、本発明可撓性管Ａの曲率半径Ｒの約２．
５倍である。On the other hand, as shown in FIG. 6, when the annular body 1a having a constant width W and having the same size as the width dimension W 0 of the maximum portion 14 is used. Has
The curved pipe has an outer pitch of 28 mm, an inner pitch of 20 mm, and a radius of curvature R of only 720 mm, which is about 2.
5 times.
【００１８】又、図４に示すように、本発明可撓性管Ａ
の中途部を１８０°回転させることによりＳ字状に湾曲
させることもできる。Further, as shown in FIG. 4, the flexible tube A of the present invention.
It can also be curved into an S-shape by rotating the midway portion of 180 degrees.
【００１９】〔実施例２〕図５は本発明可撓性管の他の
一例を示す断面図である。図５に示す本発明可撓性管に
おいては、一側縁に設けられた嵌合部１２の奥部が入り
口よりも拡大されているものであり、この実施例におい
ては、湾曲された場合に、嵌合部１２と係止部１３との
干渉が少ないものである。[Embodiment 2] FIG. 5 is a sectional view showing another example of the flexible tube of the present invention. In the flexible tube of the present invention shown in FIG. 5, the inner part of the fitting portion 12 provided at one side edge is larger than the entrance, and in this embodiment, when the fitting portion 12 is curved. The interference between the fitting portion 12 and the locking portion 13 is small.
【００２０】以上、本発明の実施例を図により説明した
が、本発明の構成は図示の実施例に限定されるものでは
なく、本発明の要旨を逸脱しない範囲の設計変更は本発
明に含まれる。Although the embodiments of the present invention have been described above with reference to the drawings, the configuration of the present invention is not limited to the illustrated embodiments, and design changes within the scope of the present invention are included in the present invention. Be done.
【００２１】例えば、図示の実施例のように、嵌合部の
開口部や係止部は可撓性管の管軸方向に平行である必要
はなく、例えば、管軸方向と直角方向に向けられていて
もよい。For example, as in the illustrated embodiment, the opening of the fitting portion and the locking portion do not need to be parallel to the tube axis direction of the flexible tube, but may be oriented in a direction perpendicular to the tube axis direction, for example. It may be.
【００２２】[0022]
【発明の効果】本発明の可撓性管においては、各環状体
はその一極部から対向する他極部にかけて幅寸法が次第
に縮小されているので、幅寸法が最も小さい他極部が内
側となるように可撓性管を湾曲することにより一定寸法
幅の環状体を使用する場合に比較して小さな曲率半径に
より湾曲できる。In the flexible tube of the present invention, the width of each annular body is gradually reduced from the one pole portion to the other pole portion facing the annular body, so that the other pole portion having the smallest width dimension is inside. By curving the flexible tube so that the flexible tube can be curved with a smaller radius of curvature as compared with the case where an annular body having a constant width is used.
【図１】本発明可撓性管の一例を示す断面図。FIG. 1 is a sectional view showing an example of a flexible tube of the present invention.
【図２】図１に示す本発明可撓性管に使用する環状体の
一部切欠斜視図。FIG. 2 is a partially cutaway perspective view of an annular body used in the flexible tube of the present invention shown in FIG.
【図３】図１に示す本発明可撓性管を湾曲した状態を示
す断面図。3 is a cross-sectional view showing a state in which the flexible tube of the present invention shown in FIG. 1 is bent.
【図４】図１に示す本発明可撓性管をＳ字状に湾曲した
状態を示す断面図。FIG. 4 is a cross-sectional view showing a state in which the flexible tube of the present invention shown in FIG. 1 is curved into an S shape.
【図５】本発明可撓性管の他の一例を示す断面図。FIG. 5 is a cross-sectional view showing another example of the flexible tube of the present invention.
【図６】本発明可撓性管の効果と比較するために示した
可撓性管の断面図。FIG. 6 is a cross-sectional view of a flexible tube shown for comparison with the effect of the flexible tube of the present invention.
１ 環状体 １１ 凸部 １２ 嵌合部 １３ 係止部 １４ 極大部 １５ 極小部 1 annular body 11 convex part 12 fitting part 13 locking part 14 maximum part 15 minimum part
Claims (1)
め部が対設された嵌合部が設けられ、他側縁に、この嵌
合部内に摺動可能に嵌合係止される係止部が設けられた
環状体の多数個を重ね合わせ、隣り合う嵌合部と係止部
とを嵌合させて管状に形成された伸縮性及び可撓性を有
する可撓性管であって、各環状体はその一部を極大部と
し、極大部と対向する他の部分を極小部とし、極大部か
ら極小部にかけてその幅寸法が次第に縮小されているこ
とを特徴とする可撓性管。1. A fitting part having a bifurcated shape and a retaining part facing the inner edge of the opening is provided on one side edge, and a fitting engagement is slidably fitted on the other side edge in the fitting part. A flexible tube having elasticity and flexibility formed in a tubular shape by stacking a large number of annular bodies provided with locking portions and fitting adjacent fitting portions and locking portions to each other. The annular body is characterized in that a part of the annular body is a maximum portion, the other portion facing the maximum portion is a minimum portion, and the width dimension is gradually reduced from the maximum portion to the minimum portion. Flexible tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28323494A JPH08145247A (en) | 1994-11-17 | 1994-11-17 | Flexible tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28323494A JPH08145247A (en) | 1994-11-17 | 1994-11-17 | Flexible tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08145247A true JPH08145247A (en) | 1996-06-07 |
Family
ID=17662831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28323494A Pending JPH08145247A (en) | 1994-11-17 | 1994-11-17 | Flexible tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08145247A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100839906B1 (en) * | 2006-10-27 | 2008-06-19 | 현일수 | Flexible pipe |
| JP2012016121A (en) * | 2010-06-30 | 2012-01-19 | Doi Seisakusho:Kk | Conduit for cable |
-
1994
- 1994-11-17 JP JP28323494A patent/JPH08145247A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100839906B1 (en) * | 2006-10-27 | 2008-06-19 | 현일수 | Flexible pipe |
| JP2012016121A (en) * | 2010-06-30 | 2012-01-19 | Doi Seisakusho:Kk | Conduit for cable |
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