JP2509876B2 - Metal fitting for joining copper pipe and joining method - Google Patents
Metal fitting for joining copper pipe and joining methodInfo
- Publication number
- JP2509876B2 JP2509876B2 JP5297359A JP29735993A JP2509876B2 JP 2509876 B2 JP2509876 B2 JP 2509876B2 JP 5297359 A JP5297359 A JP 5297359A JP 29735993 A JP29735993 A JP 29735993A JP 2509876 B2 JP2509876 B2 JP 2509876B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- diameter
- joining
- flare
- copper pipe
- 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 - Lifetime
Links
Landscapes
- Mutual Connection Of Rods And Tubes (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、銅管の接合用金具と該
金具を使用した銅管の接合方法およびその接合構造に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal fitting for joining a copper pipe, a method of joining a copper pipe using the fitting, and a joining structure thereof.
【０００２】[0002]
【従来の技術】従来、管と管との接合手段は、同径の二
本の管のうち、一方の管の口端縁付近を拡げ（フレアと
いう）てフレア部とし、該フレア部に他方の管を差し込
み、熱を用いて差し込み溶接、あるいは、差し込みロウ
付けをしており、これらの手段は専門の技能を必要とし
ており、環境を害すると共に、作業者に危険性を伴うと
いう欠点があった。2. Description of the Related Art Conventionally, a pipe-to-pipe joining means is one of two pipes having the same diameter, which is flared near the mouth edge of one pipe to form a flare portion, and the flare portion is connected to the other portion. The pipes are inserted and heat is used for welding or brazing.These methods require specialized skills and have the disadvantages of harming the environment and being dangerous to the operator. It was
【０００３】しかし、常温下において作業できる金具も
存在するが、形状記憶合金を用いて管と管とを接合する
ものであり、従って非常に高価であり、高級配管向けし
か用途がなかった。However, although there are metal fittings that can be worked at room temperature, they are used to join pipes with each other using a shape memory alloy, and are therefore very expensive, so that they have only been used for high-grade pipes.
【０００４】[0004]
【発明が解決しようとする課題】そこで本発明は、既に
市場にて量産されている各継手（エルボ、ティーズ、Ｕ
字）をそのまま使用でき、また、鍛造で大量生産するこ
とにより、安価に提供できる接合用金具の開発と、ま
た、常温下で、熟練した技術者でなくても簡単・容易に
接合でき、従来例に比べて小さい押圧力で接合でき、し
かも、作業者にとって危険ではなく、安全であり作業環
境も良好な銅管の接合方法および接合構造を開発するも
のである。Therefore, the present invention is directed to the joints (elbows, teeth, U) that have already been mass-produced in the market.
() Can be used as it is, and by mass production by forging, development of a joining metal fitting that can be provided at low cost, and even at ordinary temperature, even a skilled engineer can easily and easily join The purpose of the present invention is to develop a joining method and joining structure for copper pipes, which can be joined with a smaller pressing force than the example, and which is not dangerous to the operator, is safe, and has a good working environment.
【０００５】[0005]
【課題を解決するための手段】まず、本発明の接合用金
具は、一定以上の肉厚を有し、かつ、差込管の径とほぼ
同等の長さを有する筒状の金属製であって、一端部が中
央部内径より小径な段部を形成し、該段部と中央部内径
との差には大きなテーパ壁面として差込管を嵌挿可能な
径とし、他端部は内口端が肉厚の寸法より短い寸法のア
ールを有し、該アール部から軸方向に進むに従って縮径
となるテーパ内壁面を形成して中央部内径壁面に続くよ
う形成したことを特徴とする銅管の接合用金具からなる
ものである。First, the joining metal fitting of the present invention is made of a tubular metal having a wall thickness of a certain value or more and a length substantially equal to the diameter of the insertion tube. The one end has a diameter smaller than the inner diameter of the central portion, and the difference between the diameter of the inner diameter of the central portion and the diameter of the diameter of the diameter of the insertion tube is such that the insertion tube can be inserted and the other end has an inner diameter. A copper characterized in that the end has a radius smaller than the thickness of the wall, and a tapered inner wall surface is formed so as to decrease in diameter in the axial direction from the radius part and continues to the inner wall surface of the central part. It consists of fittings for joining pipes.
【０００６】次に、本発明の方法は、一の銅管の口端部
をフレア加工して被差込管とし、他の銅管を差込管と
し、該差込管を該フレア部に差し込んで、接合する銅管
の接合方法において；一定以上の肉厚を有する筒状の金
属製であって、一端部が中央部内径より小径な段部を形
成し、該段部と中央部内径との差には大きなテーパ壁面
として差込管を嵌挿可能な径とし、他端部は内口端が肉
厚の寸法より短い寸法のアールを有し、該アール部から
軸方向に従って縮径となるテーパ内壁面を形成して中央
部内径面に続く、金具を設け；該金具を、差込管に差し
込んでおき、該差込管をフレア加工された被差込管のフ
レア部に差し込み、被差込管のフレア部基端を係止・保
持する受治具で固定しておき、前記差込管に嵌挿した金
具を、別の押治具で軸方向に押圧移動させて被差込管の
フレア部に押圧嵌挿して両管を接合することを特徴とす
る銅管の接合金具およびその接合方法からなるものであ
る。Next, according to the method of the present invention, the mouth end portion of one copper pipe is flared to be an insertion pipe, another copper pipe is used as an insertion pipe, and the insertion pipe is attached to the flare portion. In a method for joining copper pipes by inserting and joining; a tubular metal having a wall thickness of a certain thickness or more, one end portion of which forms a step portion having a diameter smaller than a central portion inner diameter, and the step portion and the central portion inner diameter The inner diameter of the other end has a radius that is shorter than the wall thickness, and the radius decreases from the radius in the axial direction. Provide a metal fitting that forms a tapered inner wall surface that follows the inner diameter surface of the central portion; insert the metal fitting into the insertion pipe, and then insert the insertion pipe into the flare portion of the flared insertion pipe. , The flare portion of the plugged tube is fixed with a receiving jig that locks and holds the base end, and the metal fitting fitted into the plugged tube is fixed with another pushing jig. It is made of metal joint and joining method of the copper tube, characterized in that joining press fitting inserted in the two pipe the flared portion of the insertion tube is pressed against the moving direction.
【０００７】さらに、本発明は、一の銅管の口端部にフ
レア加工した被差込管に、他の銅管を差込管として差し
込み、フレア部には、一定以上の肉厚を有し、かつ、差
込管の径とほぼ同等の長さを有する筒状の金属製であっ
て、一端部が中央部内径より小径な段部を形成し、該段
部と中央部内径との差には大きなテーパ壁面として差込
管を嵌挿可能な径とし、他端部は内口端が肉厚の寸法よ
り短い寸法のアールを有し、該アール部から軸方向に進
むに従って縮径となるテーパ内壁面を形成して中央部内
径壁面に続くよう形成した接合用金具を押圧嵌挿し、差
込管と被差込管を接合用金具で接合することを特徴とす
る銅管の接合構造からなる。Further, according to the present invention, another copper tube is inserted as an insertion tube into the insertion tube flared at the mouth end portion of one copper tube, and the flare portion has a certain thickness or more. And is made of a tubular metal having a length substantially equal to the diameter of the insertion pipe, and one end portion forms a step portion having a diameter smaller than the central portion inner diameter, and the step portion and the central portion inner diameter are The difference has a large taper wall surface with a diameter that allows the insertion tube to be inserted, and the other end has a radius whose inner mouth end is shorter than the wall thickness, and the diameter decreases from the radius part in the axial direction. Joining of copper pipes, characterized by forming a tapered inner wall surface that is formed so as to follow the inner diameter wall surface of the central portion by press fitting and joining the insertion pipe and the insertion pipe with the joining metal fitting Composed of structure.
【０００８】[0008]
【実施例】次に、これら発明の一実施例を説明すると、
まず第一の発明は、接合金具であり、図１および図２に
基づいて詳細に説明すると、一定以上の肉厚を有し、か
つ、差込管（Ｙ）の径とほぼ同等の長さを有する筒状の
金属製であって、一端部が中央部内径（ａ）より小径な
段部（１ａ）を形成し、該段部と中央部内径（ａ）との
差には大きなテーパ壁面（１ｅ）として差込管（Ｙ）を
嵌挿可能な径とし、他端部は内口端（１ｂ）が肉厚の寸
法より短い寸法のアールを有し、該アール部から軸方向
に進むに従って縮径となるテーパ内壁面（１ｃ）を形成
して中央部内径壁面（１ｄ）に続くよう形成したことを
特徴とする銅管の接合用金具（１）からなるものであ
る。EXAMPLES Next, one example of these inventions will be explained.
The first aspect of the present invention is a metal fitting, which will be described in detail with reference to FIGS. 1 and 2, and has a wall thickness of a certain value or more and a length substantially equal to the diameter of the insertion pipe (Y). Made of a tubular metal having one end forming a step portion (1a) having a diameter smaller than the central portion inner diameter (a), and the difference between the step portion and the central portion inner diameter (a) has a large taper wall surface. (1e) has a diameter into which the insertion pipe (Y) can be inserted, and the other end has a radius whose inner mouth end (1b) is shorter than its wall thickness, and advances in the axial direction from the radius. The copper pipe joining metal fitting (1) is characterized in that a taper inner wall surface (1c) having a reduced diameter is formed in accordance with the above, and the taper inner wall surface (1d) is formed to follow the inner diameter wall surface (1d).
【０００９】次に、第二の発明である銅管の接合方法
は、図３、図４、図５そして図６で詳細に説明すると、
一の銅管の口端部をフレア加工して被差込管（Ｘ）と
し、他の銅管を差込管（Ｙ）とし、該差込管（Ｙ）を該
フレア部（Ｚ）に差し込んで、接合する銅管の接合方法
において；前記接合用金具（１）を、差込管（Ｙ）に予
め差し込んでおき、該差込管（Ｙ）をフレア加工された
被差込管（Ｘ）のフレア部（Ｚ）先端上に差し込み、被
差込管（Ｘ）のフレア部（Ｚ）基端を係止・保持する受
治具（Ａ）で固定しておき、前記差込管（Ｙ）に嵌挿し
た接合用金具（１）を、別の押治具（Ｂ）で軸方向に押
圧移動させて被差込管（Ｘ）のフレア部（Ｚ）に押圧嵌
挿して両管（Ｘ，Ｙ）を接合するものより構成される。Next, the method for joining copper pipes according to the second invention will be described in detail with reference to FIGS. 3, 4, 5 and 6.
The mouth end of one copper pipe is flared to be a plugged pipe (X), another copper pipe is used as a plug pipe (Y), and the plug pipe (Y) is used as the flare part (Z). In the method for joining copper pipes by inserting and joining; the metal fitting (1) for joining is previously inserted into the insertion pipe (Y), and the insertion pipe (Y) is flared. (X) flare part (Z) tip and fixed by a receiving jig (A) that locks and holds the flared part (Z) base end of the plugged tube (X). The joining metal fitting (1) inserted into (Y) is axially pressed and moved by another pressing jig (B) to be press-inserted into the flare portion (Z) of the plugged tube (X) to be inserted into both. It is constructed by joining pipes (X, Y).
【００１０】さらに、第三の発明である銅管の接合構造
は、図６で詳細に説明すると、一の銅管の口端部をフレ
ア加工した被差込管（Ｘ）に、他の銅管の差込管（Ｙ）
を差し込み、フレア部（Ｚ）には、一定以上の肉厚を有
し、かつ、差込管（Ｙ）の径とほぼ同等の長さを有する
筒状の金属製であって、一端部が中央部内径より小径な
段部（１ａ）を形成し、該段部と中央部内径（ａ）との
差には大きなテーパ壁面（１ｅ）として差込管（Ｙ）を
嵌挿可能な径とし、他端部は内口端（１ｂ）が肉厚の寸
法より短い寸法のアールを有し、該アール部から軸方向
に進むに従って縮径となるテーパ内壁面（１ｃ）を形成
して中央部内径壁面（１ｄ）に続くよう形成した接合用
金具を押圧嵌挿し、差込管（Ｙ）と被差込管（Ｘ）を接
合用金具（１）で接合することを特徴とする銅管の接合
構造から構成されるものである。Further, the joint structure of the copper pipe of the third invention will be described in detail with reference to FIG. 6, in which the insertion end pipe (X) in which the mouth end of one copper pipe is flared is processed by another copper pipe. Tube insertion tube (Y)
The flare portion (Z) is made of a tubular metal having a wall thickness of a certain value or more and a length substantially equal to the diameter of the insertion pipe (Y), and one end portion of which is A step portion (1a) having a diameter smaller than the inner diameter of the central portion is formed, and the difference between the step portion and the inner diameter (a) of the central portion is set as a large taper wall surface (1e) so that the insertion pipe (Y) can be inserted therein. , The other end has a radius whose inner mouth end (1b) is shorter than the wall thickness, and forms a tapered inner wall surface (1c) whose diameter decreases in the axial direction from the radius part to form a central portion. A metal fitting for joining formed so as to follow the inner wall surface (1d) is press-fitted, and the inserting pipe (Y) and the inserted pipe (X) are joined by the joining fitting (1). It is composed of a junction structure.
【００１１】また、この発明の他の実施例であって、例
えば異径管の接合においても上記方法と同様であるが、
異径管は、接合部が二箇所となるため、図７に示すよう
に両端部の径が異なる連結管（Ｃ）を設け、該連結管が
被差込管となり、該管の両端部をフレア加工したフレア
部（Ｚ）を設け、大・小二個の接続金具（１）（１′）
を設けて、これら接合用金具（１）（１′）を差込管
（Ｙ）（Ｙ′）にそれぞれあらかじめ差し込んでおき、
連結管（Ｃ）に差込管（Ｙ）（Ｙ′）を差し込み接合用
金具（１）（１′）を相接近させるようそれぞれ押治具
（Ｂ）（Ｂ′）で移動してそれぞれの接合用金具（１）
を押圧嵌挿して連結管（Ｃ）に形成したフレア部（Ｚ）
に接合するものである。Further, in another embodiment of the present invention, for example, in the case of joining different diameter pipes, the same method as described above is used.
Since the different-diameter pipe has two joining portions, a connecting pipe (C) having different diameters at both ends is provided as shown in FIG. 7, the connecting pipe serves as a plug-in pipe, and both ends of the pipe are connected. Flare processed flare part (Z) is provided, and two large and small connection fittings (1) (1 ')
And insert these fittings (1) (1 ') into the insertion pipes (Y) (Y') in advance.
Insert the insertion pipes (Y) (Y ') into the connection pipe (C) and move them with the pressing jigs (B) (B') so that the joining metal fittings (1) (1 ') come close to each other. Metal fittings for joining (1)
Flare portion (Z) formed on the connecting pipe (C) by pressing and inserting
Is to be joined to.
【００１２】さらに、この発明のさらに他の実施例にお
いて、エルボ管の接合においては図８に示すように、エ
ルボ管（Ｄ）の両端部をフレア加工し、フレア部（Ｚ）
としたものであり、該エルボ管が被差込管となり、該管
のそれぞれの接合用金具（１）（１）を設けて、これら
接合用金具（１）（１）を差込管（Ｙ）（Ｙ′）にそれ
ぞれあらかじめ差し込んでおき、エルボ管（Ｄ）に差込
管（Ｙ）（Ｙ′）を差し込み接合用金具（１）（１）を
フレア部（Ｚ）先端上に移動してそれぞれの接合用金具
を押圧嵌挿してエルボ管（Ｄ）に形成したフレア部
（Ｚ）に接合するものであり、また、異径エルボ管
（Ｄ′）の場合には、図９に示すように異径エルボ管
（Ｄ′）の両端部をフレア加工し、フレア部（Ｚ）とし
たものであり、大・小二個の接合用金具（１）（１′）
を設けて、これら接合用金具（１）（１′）を差込管
（Ｙ）（Ｙ′）にそれぞれあらかじめ差し込んでおき、
異径エルボ管（Ｄ′）に差込管（Ｙ）（Ｙ′）を差し込
み接合用金具（１）（１′）をフレア部（Ｚ）先端上に
移動してそれぞれの接合用金具（１）（１′）をそれぞ
れ押治具（Ｂ）（Ｂ′）で押圧嵌挿して異径エルボ管
（Ｄ′）に形成したフレア部（Ｚ）に接合するものであ
る。Further, in still another embodiment of the present invention, in joining the elbow pipes, as shown in FIG. 8, both ends of the elbow pipe (D) are flared to form flare portions (Z).
The elbow pipe serves as a plug-in pipe, and the respective fittings (1) (1) for the pipe are provided, and the fittings (1) (1) are inserted into the insertion pipe (Y). ) (Y ') respectively, insert the insertion pipes (Y) and (Y') into the elbow pipe (D), and move the fittings (1) and (1) onto the flare (Z) tip. The respective fittings are press-fitted and joined to the flare portion (Z) formed on the elbow pipe (D), and in the case of the different diameter elbow pipe (D '), it is shown in FIG. Both ends of the different diameter elbow pipe (D ') are flared to form flare parts (Z) as described above. Two large and small metal fittings (1) (1')
And insert these fittings (1) (1 ') into the insertion pipes (Y) (Y') in advance.
Insert the insertion pipes (Y) and (Y ') into the different diameter elbow pipes (D') and move the joining metal fittings (1) and (1 ') onto the flare (Z) tip, respectively. ) (1 ') is pressed and inserted by the pressing jigs (B) and (B'), respectively, and joined to the flare portion (Z) formed on the different diameter elbow pipe (D ').
【００１３】また、この発明のさらに他の実施例におい
て、ティーズ管の接合においては図１０に示すように、
ティーズ管（Ｅ）が被差込管となり、該管のそれぞれの
端部をフレア加工し、フレア部（Ｚ）としたものであ
り、それぞれの接合用金具（１）（１）（１）を設け
て、これら接合用金具（１）（１）（１）を差込管
（Ｙ）（Ｙ′）（Ｙ″）にそれぞれあらかじめ差し込ん
でおき、ティーズ管（Ｅ）に差込管（Ｙ）（Ｙ′）
（Ｙ″）を差し込み接合用金具（１）（１）（１）をフ
レア部（Ｚ）先端上に押治具（Ｂ）でそれぞれ移動して
それぞれの接合用金具（１）（１）（１）を押圧嵌挿し
てティーズ管（Ｅ）に形成したフレア部（Ｚ）に接合す
るものであり、また、異径ティーズ管（Ｅ′）の場合も
同様であり、図１１に示すように異径ティーズ管
（Ｅ′）のそれぞれの端部をフレア加工し、フレア部
（Ｚ）としたものであり、大二個・小一個の接合用金具
（１）（１）（１′）を設けて、これら接合用金具
（１）（１）（１′）を差込管（Ｙ）（Ｙ）（Ｙ′）に
それぞれあらかじめ差し込んでおき、異径ティーズ管
（Ｅ）に差込管（Ｙ）（Ｙ）（Ｙ′）を差し込み接合用
金具（１）（１）（１′）をフレア部（Ｚ）先端上に移
動してそれぞれの接合用金具を、押治具（Ｂ）（Ｂ′）
で押圧嵌挿して異径ティーズ管（Ｅ′）に形成したフレ
ア部（Ｚ）に接合するものである。Further, in still another embodiment of the present invention, as shown in FIG.
The Tee's pipe (E) serves as a plug-in pipe, and each end of the pipe is flared to form a flare portion (Z), and the respective fittings (1) (1) (1) are The fittings (1), (1) and (1) for joining are provided in advance in the insertion pipes (Y) (Y ') (Y "), respectively, and the insertion pipes (Y) are inserted in the tees pipe (E). (Y ')
(Y ″) is inserted and the metal fittings (1), (1), (1) are moved onto the flare portion (Z) tip by the pressing jig (B), and the respective metal fittings (1) (1) ( 1) is press-fitted and joined to the flare portion (Z) formed on the teeth tube (E), and the same is true for the different diameter teeth tube (E '), as shown in FIG. Each end of the different diameter T's tube (E ') is flared to form a flare (Z). Two large and one small joining metal fittings (1) (1) (1') are used. The fittings (1), (1), and (1 ') for joining are inserted into the insertion pipes (Y), (Y), and (Y') in advance, respectively, and the insertion pipes (E) are inserted into the different diameter tease pipes (E). Y) (Y) (Y ') is inserted, and the metal fittings (1), (1), (1') for joining are moved onto the tip of the flare portion (Z) to attach the respective metal fittings for joining. Jig (B) (B ')
It is press-fitted and joined to the flare portion (Z) formed on the different diameter T's tube (E ').
【００１４】また、この発明のさらに他の実施例におい
て、Ｕ字管の接合においては図１２に示すように、Ｕ字
管（Ｆ）を被差込管とし、該管のそれぞれの端部をフレ
ア加工し、フレア部（Ｚ）としたものであり、それぞれ
の接合用金具（１）（１）を設けて、これら接合用金具
（１）（１）を差込管（Ｙ）（Ｙ）にそれぞれあらかじ
め差し込んでおき、Ｕ字管（Ｆ）に差込管（Ｙ）（Ｙ）
を差し込み接合用金具（１）（１）をフレア部（Ｚ）先
端上にそれぞれ押治具（Ｂ）（Ｂ）にて移動してそれぞ
れの接合用金具（１）（１）を押圧嵌挿してＵ字管
（Ｆ）に形成したフレア部（Ｚ）に接合するものであ
り、Ｕ字管（Ｆ）を固定する受治具（Ａ′）が必要であ
る。Further, in still another embodiment of the present invention, in joining U-shaped pipes, as shown in FIG. 12, the U-shaped pipe (F) is used as a plugged pipe, and each end of the pipe is connected. A flare portion (Z) is obtained by flare processing, and the respective fittings (1) (1) are provided, and the fittings (1) (1) are inserted into the insertion pipes (Y) (Y). Insert each into the U-shaped tube (F) and insert tube (Y) (Y) in advance.
Insert the fitting metal fittings (1) (1) onto the flare portion (Z) tip by pushing jigs (B) (B), and press fit the fitting metal fittings (1) (1). Is joined to the flare portion (Z) formed on the U-shaped tube (F), and a receiving jig (A ') for fixing the U-shaped tube (F) is required.
【００１５】尚、上記各実施例において、銅管の接合方
法において使用する押治具および受治具は、図１３に示
すよう、共に割り型となっており、差込管（Ｙ）に差し
込む押治具の差込管（Ｙ）の内径面はギザギザの粗い面
に形成して、差込管（Ｙ）をスャップすることなく確実
にクランプするよう構成されており、接合用金具（１）
を軸方向に押圧し、接合用金具（１）のアールが、先
ず、被差込管（Ｘ）のフレア部の口端に当接し、つぎに
フレア部（Ｚ）に乗り上げ、テーパ内壁面（１ｃ）を通
りすぎ、やがて、フレア部（Ｚ）の口端部が接合用金具
（１）の大きなテーパ部に当接し食い込むまで移動する
ものであり、両治具は、当然の事ながら接合完了後は取
り外すものである。In each of the above embodiments, the pressing jig and the receiving jig used in the copper pipe joining method are split molds as shown in FIG. 13, and are inserted into the insertion pipe (Y). The inner diameter surface of the insertion pipe (Y) of the pressing jig is formed into a rough rough surface so that the insertion pipe (Y) can be securely clamped without having to be snapped.
Is pressed in the axial direction, the radius of the joining metal fitting (1) first comes into contact with the mouth end of the flare portion of the plugged tube (X), then rides on the flare portion (Z), and the tapered inner wall surface ( 1c) and then the mouth end of the flare part (Z) moves until it comes into contact with the large taper part of the joining metal fitting (1) and bites into it. The rest is to be removed.
【００１６】[0016]
【発明の効果】この発明によると、銅管の接合におい
て、金属製の接合用金具を設け、該金具は、鍛造で生産
できるため、大量生産が可能であり、従って、安価に提
供でき、また、管と管との接合手段は、該金具を用いる
ことにより専門の技能並びに熟練を要する技術が必要で
なく、さらに常温下で行うため環境を害することがなく
作業者に危険性が及ぶこともなく、さらに各継手（エル
ボ、ティーズ、Ｕ字）をそのまま使用でき、また、従来
例に比べて小さい押圧力で接合できる等極めて有益なる
効果を奏するものである。According to the present invention, in joining copper pipes, metal joining fittings are provided, and the fittings can be produced by forging, so mass production is possible, and therefore, they can be provided at low cost, and The pipe-to-pipe joining means does not require specialized skill or skill by using the metal fittings, and since it is performed at room temperature, the environment is not harmed and the worker may be at risk. In addition, the respective joints (elbow, teeth, U-shape) can be used as they are, and they can be joined with a smaller pressing force as compared with the conventional example.
【図１】この発明の一実施例を示す接合金具の断面図で
ある。FIG. 1 is a cross-sectional view of a joining fitting showing an embodiment of the present invention.
【図２】この発明の一実施例を示す接合金具の側面図で
ある。FIG. 2 is a side view of a joining fitting showing an embodiment of the present invention.
【図３】この発明の実施状態を示す説明図である。FIG. 3 is an explanatory diagram showing an implementation state of the present invention.
【図４】この発明の一実施例を示す接合前の状態を示す
説明図である。FIG. 4 is an explanatory view showing a state before joining showing an embodiment of the present invention.
【図５】この発明の一実施例を示す接合途中状態を示す
説明図である。FIG. 5 is an explanatory view showing a state in the middle of joining showing an embodiment of the present invention.
【図６】この発明の一実施状態を示す接合完了状態を示
す説明図である。FIG. 6 is an explanatory view showing a joining completed state showing an embodiment of the present invention.
【図７】この発明の他の実施例を示す説明図である。FIG. 7 is an explanatory diagram showing another embodiment of the present invention.
【図８】この発明のさらに他の実施例を示す説明図であ
る。FIG. 8 is an explanatory view showing still another embodiment of the present invention.
【図９】この発明のさらに他の実施例を示す説明図であ
る。FIG. 9 is an explanatory diagram showing still another embodiment of the present invention.
【図10】この発明のさらに他の実施例を示す説明図であ
る。FIG. 10 is an explanatory diagram showing still another embodiment of the present invention.
【図11】この発明のさらに他の実施例を示す説明図であ
る。FIG. 11 is an explanatory diagram showing still another embodiment of the present invention.
【図12】この発明のさらに他の実施例を示す説明図であ
る。FIG. 12 is an explanatory diagram showing still another embodiment of the present invention.
【図13】この発明に使用する治具の一実施例を示す説明
図である。FIG. 13 is an explanatory view showing an embodiment of a jig used in the present invention.
１ 接合用金具 １′ 接合用金具 １ａ 段部 １ｂ 内口端 １ｃ 内壁面 １ｄ 内径壁面 １ｅ 大テーパ壁面 Ｘ 被差込管 Ｙ 差込管 Ｙ′ 差込管 Ｙ″ 差込管 Ｚ フレア部 Ａ 受治具 Ａ′ 受治具 ａ 内径 Ｂ 押治具 Ｂ′ 押治具 Ｃ 連結管 Ｄ エルボ管 Ｄ′ 異径エルボ管 Ｅ ティーズ管 Ｅ′ 異径ティーズ管 Ｆ Ｕ字管 1 Metal fitting 1'Metal fitting 1a Step portion 1b Inner opening end 1c Inner wall surface 1d Inner wall surface 1e Large taper wall surface X Inserted pipe Y Insert pipe Y'Insertion pipe Y "Insert pipe Z Flare part A Receive Jig A ′ Receiving jig a Inner diameter B Pushing jig B ′ Pushing jig C Connecting pipe D Elbow pipe D ′ Different diameter elbow pipe E Tees pipe E ′ Different diameter teeth pipe F U-shaped pipe
Claims (3)
径とほぼ同等の長さを有する筒状の金属製であって、一
端部が中央部内径より小径な段部を形成し、該段部と中
央部内径との差には大きなテーパ壁面として差込管を嵌
挿可能な径とし、他端部は内口端が肉厚の寸法より短い
寸法のアールを有し、該アール部から軸方向に進むに従
って縮径となるテーパ内壁面を形成して中央部内径壁面
に続くよう形成したことを特徴とする銅管の接合用金
具。1. A stepped portion which is made of a tubular metal and has a wall thickness of a certain value or more and a length substantially equal to the diameter of the insertion tube, and one end portion of which has a diameter smaller than the inner diameter of the central portion. The inner diameter of the other end has a radius that is shorter than the thickness of the wall thickness of the insertion tube as a large taper wall for the difference between the step and the inner diameter of the central portion. A metal fitting for a copper pipe, characterized in that a tapered inner wall surface is formed so as to decrease in diameter in the axial direction from the rounded portion so as to continue to the inner wall surface of the central portion.
込管とし、他の銅管を差込管とし、該差込管を該フレア
部に差し込んで、接合する銅管の接合方法において；接
合用金具を、差込管に差し込んでおき、該差込管をフレ
ア加工された被差込管のフレア部に差し込み、被差込管
のフレア部基端を係止・保持する受治具で固定してお
き、前記差込管に嵌挿した該金具を、別の押治具で軸方
向に押圧移動させて被差込管のフレア部に押圧嵌挿して
両管を接合することを特徴とする銅管の接合方法。2. A copper pipe to be joined by flaring the mouth end of one copper pipe to form an insertion pipe, another copper pipe as an insertion pipe, and inserting the insertion pipe into the flare portion. In the joining method, the fitting for fitting is inserted into the insertion pipe, the insertion pipe is inserted into the flare portion of the flared insertion pipe, and the flare portion base end of the insertion pipe is locked. It is fixed with a receiving jig to be held, and the metal fitting fitted and inserted in the insertion pipe is pushed and moved in the axial direction by another pushing jig so as to be pushed and fitted into the flare portion of the insertion pipe to be inserted into both pipes. A method for joining copper pipes, which comprises joining
込管に、他の銅管を差込管として差し込み、フレア部に
は、一定以上の肉厚を有し、かつ、差込管の径とほぼ同
等の長さを有する筒状の金属製であって、一端部が中央
部内径より小径な段部を形成し、該段部と中央部内径と
の差には大きなテーパ壁面として差込管を嵌挿可能な径
とし、他端部は内口端が肉厚の寸法より短い寸法のアー
ルを有し、該アール部から軸方向に進むに従って縮径と
なるテーパ内壁面を形成して中央部内径壁面に続くよう
形成した接合用金具を押圧嵌挿し、差込管と被差込管を
接合用金具で接合することを特徴とする銅管の接合構
造。3. A copper pipe into which a mouth end portion of one copper pipe is flared, and another copper pipe is inserted as the insertion pipe, and the flare portion has a wall thickness of a certain value or more, and A cylindrical metal having a length approximately equal to the diameter of the insertion tube, one end forming a step portion having a diameter smaller than the central portion inner diameter, and the difference between the step portion and the central portion inner diameter is large. The tapered wall has a diameter that allows the insertion tube to be inserted therein, and the other end has a radius whose inner mouth end is shorter than the wall thickness dimension, and the inside diameter of the taper decreases from the radius portion toward the axial direction. A joint structure for a copper pipe, characterized in that a metal fitting for forming a wall surface is formed so as to follow the inner diameter wall surface of the central portion, and the insertion pipe and the inserted pipe are bonded by the metal fitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5297359A JP2509876B2 (en) | 1993-11-01 | 1993-11-01 | Metal fitting for joining copper pipe and joining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5297359A JP2509876B2 (en) | 1993-11-01 | 1993-11-01 | Metal fitting for joining copper pipe and joining method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07124640A JPH07124640A (en) | 1995-05-16 |
| JP2509876B2 true JP2509876B2 (en) | 1996-06-26 |
Family
ID=17845487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5297359A Expired - Lifetime JP2509876B2 (en) | 1993-11-01 | 1993-11-01 | Metal fitting for joining copper pipe and joining method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2509876B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6642564B2 (en) * | 2015-03-05 | 2020-02-05 | ブラザー工業株式会社 | Gas-liquid separator in fuel cell system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5933449B2 (en) * | 1980-09-24 | 1984-08-16 | 三重ホ−ロ−株式会社 | Pipe joint joining method |
| JPS6326226A (en) * | 1986-07-16 | 1988-02-03 | Nippon Benkan Kogyo Kk | Method and tool for connecting tube |
| JPH03230830A (en) * | 1990-02-05 | 1991-10-14 | Asada Kk | Method for connecting tubes |
-
1993
- 1993-11-01 JP JP5297359A patent/JP2509876B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07124640A (en) | 1995-05-16 |
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