JP3119494U - Flexible tube bending tool - Google Patents

Flexible tube bending tool Download PDF

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Publication number
JP3119494U
JP3119494U JP2005010323U JP2005010323U JP3119494U JP 3119494 U JP3119494 U JP 3119494U JP 2005010323 U JP2005010323 U JP 2005010323U JP 2005010323 U JP2005010323 U JP 2005010323U JP 3119494 U JP3119494 U JP 3119494U
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flexible tube
bending
pipe
guide groove
flexible
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信夫 小川
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株式会社オオタケファンドリー
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  • Bending Of Plates, Rods, And Pipes (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

【課題】作業現場で作業者が、簡便かつ速やかに所望の曲率半径に無理なく曲げ加工ができるフレキシブル管の曲げ工具を提供する。
【解決手段】フレキシブル管は、ある程度の曲げは手だけで行うことができるが、小さな曲げ半径となると困難である。本考案の曲げ工具は、フレキシブル管10が挿嵌するパイプ状の柄部1aと、柄部1aの上端に一体に形成され断面が略半円状のガイド溝を有するガイド部1bとから構成されている。そして、ガイド部1bは、ガイド溝を外側としてフレキシブル管の略最小曲げ半径で湾曲している。
【選択図】図4
To provide a bending tool for a flexible pipe, which allows an operator to easily and quickly bend a desired radius of curvature without difficulty.
A flexible tube can be bent to a certain extent only by hand, but it is difficult to obtain a small bending radius. The bending tool of the present invention is composed of a pipe-shaped handle portion 1a into which the flexible tube 10 is inserted, and a guide portion 1b having a guide groove formed integrally with the upper end of the handle portion 1a and having a substantially semicircular cross section. ing. And the guide part 1b is curving by the substantially minimum bending radius of a flexible tube by making a guide groove into the outer side.
[Selection] Figure 4

Description

本考案は、金属製のフレキシブル管を無理なく曲げるための作業工具に関するものである。   The present invention relates to a work tool for bending a metal flexible tube without difficulty.

例えば、台所や洗面所などの水回りの配管に変位や衝撃に対応できるように環状凸部と環状凹部を交互に連続して形成された金属製のフレキシブル管が一般に使用されており、現地で必要な長さに切断して取り付けられている。
このフレキシブル管は、端部側の環状凸部の2〜3個を押し潰してフランジを成形し、取り付け部に合わせた曲げ加工を行い、該フランジにパッキンを介して管継手で接続している。
For example, metal flexible pipes that are formed by alternately and continuously forming annular protrusions and annular recesses to accommodate displacement and impact on pipes around water such as kitchens and washrooms are generally used locally. Cut to the required length and attached.
This flexible tube is formed by crushing two or three of the annular convex portions on the end side, forming a flange, bending according to the mounting portion, and connecting to the flange with a pipe joint via packing. .

この曲げ加工は、曲げ半径が大きな場合は、両手でフレキシブル管の両端を持って曲げることができ、特に道具を必要としない。しかし、曲げ半径が小さい場合は、簡単ではなく、例えば、ドライバやスパナなどに布を巻いて、これをフレキシブル管に挿入して曲げている。
なお、フレキシブル管を曲げる専用工具としては、2点でフレキシブル管を支持し、その中央部をシリンダで押圧するようにしたものがある(特許文献1)。
When the bending radius is large, the bending process can be performed by holding both ends of the flexible tube with both hands, and no tools are required. However, when the bending radius is small, it is not easy. For example, a cloth is wound around a driver or a spanner, and this is inserted into a flexible tube and bent.
In addition, as a dedicated tool for bending a flexible tube, there is a tool that supports the flexible tube at two points and presses the central portion with a cylinder (Patent Document 1).

特開2000−61538号公報JP 2000-61538 A

特に、配管同士が交錯するような場合や、フレキシブル管の端部から近い距離で曲げるような場合は、フレキシブル管に無理のかからない状態で所望の形状に曲げるのは困難である。このような場合に、フレキシブル管にドライバやスパナを挿入して曲げるのは、作業時フレキシブル管が局部的に最小曲げ半径以下になり易く、水漏れの原因となることが少なくない。
なお、特許文献1の曲げ加工機を使用すれば、所望の形状に無理なく曲げることができるが、作業現場へ持ち込んで使うことは難しく、実用的ではない。
In particular, when the pipes cross each other or when bent at a distance close to the end of the flexible pipe, it is difficult to bend the pipe into a desired shape without overloading the flexible pipe. In such a case, inserting and bending a driver or spanner into the flexible pipe tends to cause the flexible pipe to be locally less than the minimum bending radius during work, which often causes water leakage.
In addition, if the bending machine of patent document 1 is used, it can be bent into a desired shape without difficulty, but it is difficult to bring it into the work site and it is not practical.

そこで、本考案は、作業現場で作業者が、簡便かつ速やかに所望の曲げ半径に無理なく曲げることができるフレキシブル管の曲げ工具を提供することを目的としている。   SUMMARY OF THE INVENTION An object of the present invention is to provide a flexible tube bending tool that can be easily and quickly bent to a desired bending radius at a work site.

本考案のフレキシブル管の曲げ工具は、上記の目的を達成するため次の手段を採った。すなわち、フレキシブル管が挿嵌するパイプ状の柄部と、該柄部の上端に一体に形成され断面が略半円状のガイド溝を有するガイド部とからなり、該ガイド部は、該ガイド溝を外側としてフレキシブル管の略最小曲げ半径で湾曲していることを特徴としている。   The flexible tube bending tool of the present invention employs the following means in order to achieve the above object. That is, a pipe-shaped handle portion into which the flexible pipe is inserted and a guide portion that is formed integrally with the upper end of the handle portion and has a guide groove having a substantially semicircular cross section. It is characterized in that it is curved at the substantially minimum bending radius of the flexible tube with the outer side as the outside.

本考案の曲げ工具は、フレキシブル管の一端側を柄部の上端から挿嵌してガイド部のガイド溝に添わせて人力で所望の曲げ半径に曲げるものである。
柄部はフレキシブル管のフランジの外径より若干大きめの内径を有する鋼管で、長さは、片手で握ることができる程度あればよい。
The bending tool of the present invention is one in which one end side of a flexible tube is inserted from the upper end of the handle portion and is bent to a desired bending radius by human force along the guide groove of the guide portion.
The handle is a steel pipe having an inner diameter slightly larger than the outer diameter of the flange of the flexible pipe, and the length only needs to be such that it can be grasped with one hand.

ガイド部は、フレキシブル管の略最小曲げ半径で曲げられ、略半円状のガイド溝を有している。
略最小曲げ半径は、ここでは、最小曲げ半径〜(最小曲げ半径+10mm)を意味しており、また、最小曲げ半径は、フレキシブル管の径ごとに定められている値である。なお、正確な円弧でなくてもよい。
ガイド溝は柄部の内径と同じ半径とするのがよいが、多少変えたものも本考案の技術的範囲に含まれる。
The guide portion is bent at a substantially minimum bending radius of the flexible tube and has a substantially semicircular guide groove.
Here, the substantially minimum bending radius means a minimum bending radius to (minimum bending radius + 10 mm), and the minimum bending radius is a value determined for each diameter of the flexible tube. In addition, it does not have to be an accurate arc.
The guide groove should have the same radius as the inner diameter of the handle, but some variations are included in the technical scope of the present invention.

本考案のフレキシブル管の曲げ工具は、上記のように、フレキシブル管が挿嵌するパイプ状の柄部と、断面が略半円状のガイド溝を有する略最小曲げ半径で湾曲したガイド部とからなるので、フレキシブル管が局部的にも作業途中においても最小曲げ半径以下になることはなく、簡便かつ速やかに所望の曲げ加工ができる。また、持ち運びが容易で、作業者が手に持った状態で作業ができ、実用上の効果が極めて大きい。   As described above, the flexible tube bending tool of the present invention includes a pipe-shaped handle portion into which the flexible tube is inserted, and a guide portion having a guide groove having a substantially semicircular cross section and curved at a substantially minimum bending radius. Therefore, the flexible pipe does not become less than the minimum bending radius locally or during the work, and a desired bending process can be easily and quickly performed. In addition, it is easy to carry and can be operated with the operator holding it in his / her hand, so that the practical effect is extremely large.

本考案のフレキシブル管の曲げ工具の実施の形態を図1〜図4に基づいて説明する。
フレキシブル管は、洗面所やトイレなど水回りの配管に一般に使用されており、ステンレス製で、図3に示すように、環状凸部10aと環状凹部10bが交互に連続して形成され、外径16.8mm(呼径1/2)のものが多い。なお、このフレキシブル管の最小曲げ半径は50mmである。
DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a flexible tube bending tool according to the present invention will be described with reference to FIGS.
The flexible pipe is generally used for plumbing around the water such as a washroom and a toilet, and is made of stainless steel. As shown in FIG. 3, the annular protrusions 10a and the annular recesses 10b are formed alternately and continuously. Many are 16.8 mm (diameter ½). The minimum bending radius of this flexible tube is 50 mm.

このフレキシブル管の曲げ工具は、図1および図2にその全体を示すように、柄部1aとガイド部1bとから構成され、全体の形状としては鎌状である。
柄部1aは、内径約19mm、板厚1.2mm、長さ15cmの鋼管である。
ガイド部1bは、上方が開放された断面半円状のガイド溝1cを備え、フレキシブル管の略最小曲げ半径R(ここでは52mmとしている)の半径で半円に湾曲している。そして、ガイド溝1cは、半径約9.5mmの半円状である。
As shown in FIGS. 1 and 2 as a whole, the flexible tube bending tool is composed of a handle portion 1a and a guide portion 1b, and has a sickle shape as a whole.
The handle 1a is a steel pipe having an inner diameter of about 19 mm, a plate thickness of 1.2 mm, and a length of 15 cm.
The guide portion 1b includes a guide groove 1c having a semicircular cross section that is open at the top, and is curved into a semicircle with a radius of a substantially minimum bending radius R (here, 52 mm) of the flexible tube. The guide groove 1c has a semicircular shape with a radius of about 9.5 mm.

この曲げ工具は、内径約19mmの鋼管を長さ25cmに切断し、一端側から約10cmの上半分を切断して取除き、この取除いた部分を半径52mmで曲げ加工すると簡便に製作できる。なお、加工部分および表面はバリや鋭利な部分がないように滑らかな状態に仕上げ加工を施している。   This bending tool can be easily manufactured by cutting a steel pipe having an inner diameter of about 19 mm into a length of 25 cm, cutting and removing the upper half of about 10 cm from one end side, and bending the removed portion with a radius of 52 mm. The processed part and the surface are finished in a smooth state so that there are no burrs or sharp parts.

次に、このように構成されたフレキシブル管の曲げ工具の使い方について図3および図4に基づいて説明する。
先ず、曲げ加工を行う前準備としてフレキシブル管10を必要長さに切断し、管端にフランジ加工を施す。
フランジ加工は、管端の2〜3の環状凸部を軸方向へ押し潰しフランジ10cを形成するもので、専用の工具が種々開発されており、これを用いて行えばよい。なお、出願人は、フランジ加工を作業現場において簡便に行えるフランジ成形具を開発しており、別途出願している。
Next, how to use the bending tool for the flexible pipe constructed as described above will be described with reference to FIGS.
First, the flexible tube 10 is cut into a necessary length as a preparation before bending, and the tube end is flanged.
Flange processing is to crush 2-3 annular projections at the pipe end in the axial direction to form the flange 10c, and various dedicated tools have been developed, and these may be used. The applicant has developed a flange forming tool that can easily perform flange processing at the work site, and has filed a separate application.

フランジ加工が済んだフレキシブル管の一端側を、図3に示すように、柄部1aの上端から嵌挿する。
そして、曲げ加工を行いたい部分をガイド部1bに位置させて、左手で柄部1a握り、右手でフレキシブル管10の他端を持ってガイド溝1cに沿わせて押し込む。概ね所望の曲げ半径になったところで止めて、柄部1aから抜き取ればよい。そして、実際の取り付け部へ合わせてみて、修正する必要があれば再度上記の作業を行う。
As shown in FIG. 3, the one end side of the flexible pipe after the flange processing is inserted from the upper end of the handle portion 1a.
Then, the portion to be bent is positioned on the guide portion 1b, and the handle portion 1a is grasped with the left hand and the other end of the flexible tube 10 is held with the right hand and pushed along the guide groove 1c. What is necessary is just to stop at the place where the desired bending radius is reached, and to extract from the handle portion 1a. Then, the above operation is performed again if it is necessary to correct the actual mounting portion.

なお、ガイド溝1cは、フレキシブル管の最小曲げ半径(ここでは50mm)より大きいので、完全にこれに沿わせて曲げたとしても、フレキシブル管に無理がかかることはない。
また、コ字状やS字状のように2カ所を曲げる場合は、一端側を曲げ加工した後、柄部1aから抜き取り、他端側を柄部1aへ嵌挿して曲げ加工を行う。図4は、フレキシブル管を90度に曲げた状態を示している。
In addition, since the guide groove 1c is larger than the minimum bending radius (here, 50 mm) of the flexible tube, even if the guide groove 1c is completely bent along this, the flexible tube is not forced.
When bending two places like a U-shape or S-shape, after bending one end side, it is extracted from the handle portion 1a, and the other end side is inserted into the handle portion 1a for bending. FIG. 4 shows a state where the flexible tube is bent at 90 degrees.

本考案のフレキシブル管の曲げ工具の実施の形態を示す正面図である。It is a front view which shows embodiment of the bending tool of the flexible pipe | tube of this invention. 同 斜視図である。It is the same perspective view. 同 使用状態を示す図で、フレキシブル管を曲げるために、セットした状態を示す正面図である。It is a figure which shows the same use condition, and is a front view which shows the state set in order to bend a flexible pipe | tube. 同 フレキシブル管を曲げたときの状態を示す正面図である。It is a front view which shows a state when the flexible pipe is bent.

符号の説明Explanation of symbols

1 曲げ工具
1a 柄部
1b ガイド部
1c ガイド溝
1d 先端部
10 フレキシブル管
10a 環状凸部
10b 環状凹部
10c フランジ
11 管継手
DESCRIPTION OF SYMBOLS 1 Bending tool 1a Handle | pattern part 1b Guide part 1c Guide groove 1d Tip part 10 Flexible pipe 10a Annular convex part 10b Annular recessed part 10c Flange 11 Pipe joint

Claims (1)

フレキシブル管が挿嵌するパイプ状の柄部と、該柄部の上端に一体に形成され断面が略半円状のガイド溝を有するガイド部とからなり、該ガイド部は、該ガイド溝を外側としてフレキシブル管の略最小曲げ半径で湾曲していることを特徴とするフレキシブル管の曲げ工具。


A pipe-shaped handle portion into which the flexible pipe is inserted and a guide portion that is formed integrally with the upper end of the handle portion and has a guide groove having a substantially semicircular cross section. The guide portion is formed outside the guide groove. A bending tool for a flexible tube, characterized by being bent at a substantially minimum bending radius of the flexible tube.


JP2005010323U 2005-12-06 2005-12-06 Flexible tube bending tool Expired - Fee Related JP3119494U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014509921A (en) * 2011-04-08 2014-04-24 ジョン エス. アブド pillow
CN109248944A (en) * 2018-11-27 2019-01-22 安徽德系重工科技有限公司 A kind of CNC tube bending machine flexible clamping device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014509921A (en) * 2011-04-08 2014-04-24 ジョン エス. アブド pillow
US9375104B2 (en) 2011-04-08 2016-06-28 John S. Abdo Pillow
CN109248944A (en) * 2018-11-27 2019-01-22 安徽德系重工科技有限公司 A kind of CNC tube bending machine flexible clamping device
CN109248944B (en) * 2018-11-27 2023-08-11 安徽德系重工科技有限公司 Elastic clamping device of numerical control pipe bending machine

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