JP2002147674A - Connecting structure of thin and small metallic pipe coated with resin and pressure-proof rubber hose - Google Patents
Connecting structure of thin and small metallic pipe coated with resin and pressure-proof rubber hoseInfo
- Publication number
- JP2002147674A JP2002147674A JP2000347509A JP2000347509A JP2002147674A JP 2002147674 A JP2002147674 A JP 2002147674A JP 2000347509 A JP2000347509 A JP 2000347509A JP 2000347509 A JP2000347509 A JP 2000347509A JP 2002147674 A JP2002147674 A JP 2002147674A
- Authority
- JP
- Japan
- Prior art keywords
- socket
- thin
- connection
- resin
- metal tube
- 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.)
- Granted
Links
Landscapes
- Joints That Cut Off Fluids, And Hose Joints (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本願発明は、外周面に防錆の
ための樹脂被覆が施された薄肉細径金属管と耐圧ゴムホ
ースとの接続構造に係り、より詳しくは金属管端部に接
続用ソケットと耐圧ゴムホースをセットした状態でソケ
ットをかしめて金属管と耐圧ゴムホースとを接続する方
式の接続構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection structure between a thin-walled thin metal tube whose outer peripheral surface is coated with a resin for rust prevention and a pressure-resistant rubber hose. The present invention relates to a connection structure in which a metal tube and a pressure-resistant rubber hose are connected by caulking the socket with the socket and the pressure-resistant rubber hose set.
【０００２】[0002]
【従来の技術】外周面に防錆のための樹脂被覆が施され
た薄肉細径金属管と耐圧ゴムホースとの接続構造は、図
１０（ａ）にその一例を示すごとく、外周面に樹脂被覆
層１−１が施された薄肉細径金属管１の接続端部に所望
の長さにわたって設けた連結筒壁１−２の近傍に転造加
工（または切削加工）によりソケット溝１−３を予め形
成し、この薄肉細径金属管１に有底円筒状で亜鉛めっき
などの表面処理が施された接続用ソケット２と耐圧ゴム
ホース３をセットした状態で、前記接続用ソケット２を
かしめることにより接続用ソケット底部２−１が前記金
属管１のソケット溝１−３に食い込んだ構造となってい
る。図中４は薄肉細径金属管１に内嵌された補強用パイ
プである。しかるに、外周面に防錆用樹脂被覆が施され
た金属管の場合は、図１０（ｂ）に拡大して示すごと
く、当該金属管１に予めソケット溝１−３を形成する
際、外面樹脂被覆層１−１が剥がれてなくなってしま
い、接続用ソケット２をかしめた際に、樹脂被覆層１−
１が剥がれて露出した素地の部分を防錆できず、当該部
分から腐食が進むという問題があった。かかる対策とし
て、従来は樹脂被覆層１−１が剥がれてなくなった部
分、すなわちソケット溝にかしめた接続用ソケット２後
端と樹脂被覆層先端との間にわたって耐食性塗料を塗布
して防錆力を高めている。2. Description of the Related Art As shown in FIG. 10 (a), a connection structure between a thin thin metal tube having a resin coating for preventing rust on its outer peripheral surface and a pressure-resistant rubber hose is shown in FIG. A socket groove 1-3 is formed by rolling (or cutting) in the vicinity of a connecting cylinder wall 1-2 provided over a desired length at a connection end of the thin thin metal tube 1 provided with the layer 1-1. The connection socket 2 is caulked in a state where the connection socket 2 and the pressure-resistant rubber hose 3 which are formed in advance and which have a cylindrical shape with a bottom and which have been subjected to a surface treatment such as zinc plating are set on the thin thin metal tube 1. As a result, the connection socket bottom portion 2-1 has a structure in which it is cut into the socket groove 1-3 of the metal tube 1. In the figure, reference numeral 4 denotes a reinforcing pipe fitted inside the thin thin metal tube 1. However, in the case of a metal tube whose outer peripheral surface is coated with a rust-preventive resin coating, when the socket groove 1-3 is previously formed in the metal tube 1 as shown in an enlarged view in FIG. When the cover layer 1-1 is peeled off and disappears, and the connection socket 2 is swaged, the resin cover layer 1-1 is removed.
There was a problem that the portion of the base material which was peeled off and exposed was not rust-proof, and corrosion proceeded from the portion. As a countermeasure against this, conventionally, a corrosion-resistant paint is applied to a portion where the resin coating layer 1-1 has not been peeled off, that is, between the rear end of the connection socket 2 caulked in the socket groove and the front end of the resin coating layer. Is increasing.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、上記した従
来の樹脂被覆層剥離による防錆力低下の問題を解決する
ためになされたもので、耐食性塗料の塗布を必要とする
ことなく防錆力を確保することができる薄肉細径樹脂被
覆金属管と耐圧ゴムホースとの接続構造を提供しようと
するものである。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem of the reduction in rust resistance due to the peeling of the resin coating layer. An object of the present invention is to provide a connection structure between a thin, thin-diameter resin-coated metal tube and a pressure-resistant rubber hose capable of securing a force.
【０００４】[0004]
【課題を解決するための手段】本発明に係る薄肉細径樹
脂被覆金属管と耐圧ゴムホースとの接続構造は、接続用
ソケットをかしめても、ソケットが食い込んだ部分に金
属管の外面樹脂被覆層を確保できるようにしたもので、
請求項１は連結筒壁の近傍にソケット溝を有する薄肉細
径樹脂被覆金属管に有底円筒状の接続用ソケットを外嵌
し、該金属管と接続用ソケットとの間に耐圧ゴムホース
の端部を挿入セットした状態で、接続用ソケットをかし
めることにより接続用ソケット底部を前記金属管のソケ
ット溝に食い込ませてなる接続構造において、少なくと
も前記ソケット溝の後端付近に樹脂被覆層を残存させた
状態で当該ソケット溝に前記接続用ソケットの底部を食
い込ませた構造となしたことを特徴とし、請求項２は連
結筒壁の近傍に転造加工により施したソケット溝を有す
る薄肉細径樹脂被覆金属管に有底円筒状の接続用ソケッ
トを外嵌し、該金属管と接続用ソケットとの間に耐圧ゴ
ムホースの端部を挿入セットした状態で、接続用ソケッ
トをかしめることにより接続用ソケット底部を前記金属
管のソケット溝に食い込ませてなる接続構造において、
前記転造加工により施すソケット溝を樹脂被覆層が残存
する管軸方向に緩い勾配の傾斜面と軸芯に垂直な面とで
構成し、該ソケット溝に前記接続用ソケットの底部を食
い込ませた構造となしたことを特徴とし、請求項３は連
結筒壁の近傍にソケット溝を有する薄肉細径樹脂被覆金
属管に有底円筒状の接続用ソケットを外嵌し、該金属管
と接続用ソケットとの間に耐圧ゴムホースの端部を挿入
セットした状態で、接続用ソケットをかしめることによ
り接続用ソケット底部を前記金属管のソケット溝に食い
込ませてなる接続構造において、前記ソケット溝を樹脂
被覆層が残存するごとくプレス加工により形成し、該ソ
ケット溝に前記接続用ソケットの底部を食い込ませた構
造となしたことを特徴とし、請求項４は端部に連結筒壁
を有する薄肉細径樹脂被覆金属管に有底円筒状の接続用
ソケットを外嵌し、該金属管と接続用ソケットとの間に
耐圧ゴムホースの端部を挿入セットした状態で、接続用
ソケットをかしめることにより接続用ソケット底部を前
記金属管に食い込ませてなる接続構造において、ソケッ
ト溝を有しない薄肉細径樹脂被覆金属管に前記接続用ソ
ケットを外嵌し、接続用ソケット底部を当該金属管の樹
脂被覆層を残したまま薄肉細径樹脂被覆金属管に食い込
ませた構造となしたことを特徴とするものである。請求
項５は連結筒壁の近傍に転造加工により施したソケット
溝を有する薄肉細径樹脂被覆金属管に有底円筒状の接続
用ソケットを外嵌し、該金属管と接続用ソケットとの間
に耐圧ゴムホースの端部を挿入セットした状態で、接続
用ソケットをかしめることにより接続用ソケット底部を
前記金属管のソケット溝に食い込ませてなる接続構造に
おいて、前記転造加工により溝内に樹脂被覆層が残存し
ないソケット溝を形成し、前記接続用ソケットの底部の
背面側開口端部で当該金属管の表面樹脂被覆層を覆うよ
うに、前記樹脂被覆層が残存しないソケット溝に接続用
ソケットの底部を食い込ませた構造となしたことを特徴
とし、According to the present invention, there is provided a connection structure between a thin and small diameter resin-coated metal tube and a pressure-resistant rubber hose according to the present invention. That can be secured,
In a first aspect of the present invention, a cylindrical connection socket having a bottom is externally fitted to a thin thin resin-coated metal pipe having a socket groove near a connecting cylinder wall, and an end of a pressure-resistant rubber hose is provided between the metal pipe and the connection socket. In the connection structure in which the bottom of the connection socket is cut into the socket groove of the metal tube by caulking the connection socket with the portion inserted and set, the resin coating layer remains at least near the rear end of the socket groove. In a state where the bottom of the connection socket is cut into the socket groove in a state where the connection is made, a thin and small diameter having a socket groove formed by rolling near the connecting cylinder wall is provided. Caulking the connection socket with the bottom of the cylindrical connection socket fitted on the resin-coated metal tube and the end of the pressure-resistant rubber hose inserted and set between the metal tube and the connection socket. In the connection structure comprising more connecting socket bottom was bite into the socket groove of the metal tube,
The socket groove to be formed by the rolling process was constituted by a slope having a gentle gradient in the pipe axis direction in which the resin coating layer remained and a surface perpendicular to the axis, and the bottom of the connection socket was cut into the socket groove. According to a third aspect of the present invention, a cylindrical connection socket having a bottom is externally fitted to a thin, thin-diameter resin-coated metal pipe having a socket groove in the vicinity of a connecting cylinder wall. In a connection structure in which the connection socket bottom is cut into the socket groove of the metal tube by caulking the connection socket with the end of the pressure-resistant rubber hose inserted and set between the socket groove and the socket, the socket groove is made of resin. A thin wall having a thin wall having a connecting cylinder wall at an end thereof, wherein the connection groove is formed by press working so that the coating layer remains, and the bottom of the connection socket is cut into the socket groove. A cylindrical connection socket with a bottom is externally fitted to the grease-coated metal tube, and the end of the pressure-resistant rubber hose is inserted and set between the metal tube and the connection socket. In the connection structure in which the socket bottom is cut into the metal tube, the connection socket is externally fitted to a thin thin resin-coated metal tube having no socket groove, and the connection socket bottom is coated with a resin coating layer of the metal tube. The structure is such that the thin-walled small-diameter resin-coated metal tube is cut into the metal tube while leaving the same. According to a fifth aspect of the present invention, a cylindrical connection socket having a bottom is externally fitted to a thin thin resin-coated metal pipe having a socket groove formed by rolling in the vicinity of a connecting cylinder wall, and the connection between the metal pipe and the connection socket is performed. With the end portion of the pressure-resistant rubber hose inserted and set between them, in the connection structure in which the connection socket bottom is cut into the socket groove of the metal tube by caulking the connection socket, A socket groove in which the resin coating layer does not remain is formed, and the socket groove in which the resin coating layer does not remain is formed so as to cover the resin coating layer on the surface of the metal tube at the rear opening end of the bottom of the connection socket. It is characterized by a structure in which the bottom of the socket is digged in.
【０００５】[0005]
【発明の実施の形態】図１は本発明の請求項２に対応す
る薄肉細径樹脂被覆金属管と耐圧ゴムホースとの接続構
造の一実施例を示したもので、（ａ）は薄肉細径樹脂被
覆金属管に接続用ソケットをかしめた状態を示す一部縦
断側面図、（ｂ）は（ａ）の要部拡大縦断側面図、図２
は同請求項３に対応する薄肉細径樹脂被覆金属管と耐圧
ゴムホースとの接続構造の一実施例を示したもので、
（ａ）は薄肉細径樹脂被覆金属管に接続用ソケットをか
しめた状態を示す一部縦断側面図、（ｂ）は（ａ）の要
部拡大縦断側面図、図３は同請求項３に対応する薄肉細
径樹脂被覆金属管と耐圧ゴムホースとの接続構造の他の
実施例を示したもので、（ａ）は薄肉細径樹脂被覆金属
管に接続用ソケットをかしめた状態を示す一部縦断側面
図、（ｂ）は（ａ）の要部拡大縦断側面図、図４は同請
求項３に対応する薄肉細径樹脂被覆金属管と耐圧ゴムホ
ースとの接続構造の別の実施例を示したもので、（ａ）
は薄肉細径樹脂被覆金属管に接続用ソケットをかしめた
状態を示す一部縦断側面図、（ｂ）は（ａ）の要部拡大
縦断側面図、図５は同請求項４に対応する薄肉細径樹脂
被覆金属管と耐圧ゴムホースとの接続構造の一実施例を
示したもので、（ａ）は薄肉細径樹脂被覆金属管に接続
用ソケットをかしめた状態を示す一部縦断側面図、
（ｂ）は（ａ）の要部拡大縦断側面図、図６は同請求項
４に対応する薄肉細径樹脂被覆金属管と耐圧ゴムホース
との接続構造の他の実施例を示したもので、（ａ）は薄
肉細径樹脂被覆金属管に接続用ソケットをかしめた状態
を示す一部縦断側面図、（ｂ）は（ａ）の要部拡大縦断
側面図、図７は同請求項４に対応する薄肉細径樹脂被覆
金属管と耐圧ゴムホースとの接続構造の別の実施例を示
したもので、（ａ）は薄肉細径樹脂被覆金属管に接続用
ソケットをかしめた状態を示す一部縦断側面図、（ｂ）
は（ａ）の要部拡大縦断側面図、図８は同請求項４に対
応する薄肉細径樹脂被覆金属管と耐圧ゴムホースとの接
続構造のさらに別の実施例を示したもので、（ａ）は薄
肉細径樹脂被覆金属管に接続用ソケットをかしめた状態
を示す一部縦断側面図、（ｂ）は（ａ）の要部拡大縦断
側面図、図９は同請求項５に対応する薄肉細径樹脂被覆
金属管と耐圧ゴムホースとの接続構造の一実施例を示し
たもので、（ａ）は薄肉細径樹脂被覆金属管に接続用ソ
ケットをかしめた状態を示す一部縦断側面図、（ｂ）は
（ａ）の要部拡大縦断側面図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an embodiment of a connection structure between a thin-walled thin resin-coated metal tube and a pressure-resistant rubber hose according to a second embodiment of the present invention. FIG. 2 is a partially longitudinal side view showing a state in which a connection socket is swaged on a resin-coated metal tube, FIG.
Shows an embodiment of a connection structure between a thin-walled thin resin-coated metal tube and a pressure-resistant rubber hose according to claim 3;
(A) is a partially longitudinal side view showing a state in which a connection socket is caulked on a thin thin resin-coated metal tube, (b) is an enlarged longitudinal sectional side view of a main part of (a), and FIG. FIG. 10 shows another embodiment of a connection structure between a corresponding thin-walled thin resin-coated metal tube and a pressure-resistant rubber hose, and (a) shows a state where a connection socket is crimped on the thin-walled thin-resin-coated metal tube. FIG. 4B is a longitudinal sectional side view, FIG. 4B is an enlarged longitudinal sectional side view of a main part of FIG. (A)
5 is a partially longitudinal side view showing a state in which a connection socket is caulked to a thin thin resin-coated metal tube, FIG. 5B is an enlarged longitudinal sectional side view of a main part of FIG. 5A, and FIG. FIG. 3A shows an embodiment of a connection structure between a small-diameter resin-coated metal tube and a pressure-resistant rubber hose, and FIG.
(B) is an enlarged vertical sectional side view of the main part of (a), and FIG. 6 shows another embodiment of the connection structure between the thin-walled thin resin-coated metal tube and the pressure-resistant rubber hose according to the fourth embodiment. (A) is a partially longitudinal side view showing a state in which a connection socket is caulked to a thin thin resin-coated metal tube, (b) is an enlarged longitudinal sectional side view of a main part of (a), and FIG. FIG. 9 shows another embodiment of a connection structure between a corresponding thin-walled thin resin-coated metal tube and a pressure-resistant rubber hose, and (a) shows a state where a connecting socket is crimped on the thin-walled thin-walled resin-coated metal tube. Longitudinal side view, (b)
FIG. 8 (a) is an enlarged longitudinal sectional side view of a main part, and FIG. 8 shows still another embodiment of a connection structure between a thin thin resin-coated metal tube and a pressure-resistant rubber hose according to the fourth embodiment. 9) is a partially longitudinal side view showing a state in which a connection socket is caulked to a thin thin resin-coated metal tube, (b) is an enlarged longitudinal sectional side view of a main part of (a), and FIG. FIG. 3A shows an embodiment of a connection structure between a thin-walled thin resin-coated metal tube and a pressure-resistant rubber hose, in which (a) is a partially longitudinal side view showing a state in which a connection socket is caulked on the thin-walled thin resin-coated metal tube. (B) is an enlarged longitudinal sectional side view of a main part of (a).
【０００６】すなわち、図１に示す接続構造は、連結筒
壁１１−２の近傍に転造加工により施したソケット溝１
１−３を有する薄肉細径樹脂被覆金属管１１に有底円筒
状の接続用ソケット１２を外嵌し、該金属管と接続用ソ
ケットとの間に耐圧ゴムホース１３の端部を挿入セット
した状態で、接続用ソケット１２をかしめることにより
接続用ソケット底部１２−１を前記金属管１１のソケッ
ト溝１１−３に食い込ませてなる接続構造であって、前
記ソケット溝１１−３を樹脂被覆層１１−１が残存する
管軸方向に緩い勾配の傾斜面１１−３ａと軸芯に垂直な
面１１−３ｂとで構成したもので、この場合は軸芯より
遠い所ほど加工率が低く樹脂層は厚く残り、軸芯に近づ
くほど加工率が高くなって樹脂層は薄くなり残留する樹
脂層もテーパ状となり、接続用ソケット１２をかしめて
も接続用ソケット底部１２−１の食込み部および金属管
１１の傾斜面１１−３ａの防錆を確保できる。That is, the connection structure shown in FIG. 1 is a socket groove 1 formed by rolling near the connecting cylinder wall 11-2.
A state in which a cylindrical connection socket 12 with a bottom is externally fitted to a thin thin resin-coated metal pipe 11 having 1-3, and an end of a pressure-resistant rubber hose 13 is inserted and set between the metal pipe and the connection socket. In this connection structure, the connection socket 12 is caulked so that the connection socket bottom 12-1 is cut into the socket groove 11-3 of the metal tube 11, and the socket groove 11-3 is formed of a resin coating layer. 11-1 is composed of a remaining inclined surface 11-3a having a gentle gradient in the tube axis direction and a surface 11-3b perpendicular to the axis. In this case, the farther from the axis, the lower the processing rate and the lower the resin layer. Remains thick, the processing rate increases as it approaches the shaft core, the resin layer becomes thinner, and the remaining resin layer also becomes tapered. Even if the connection socket 12 is crimped, the biting portion of the connection socket bottom portion 12-1 and the metal pipe 11 slopes 11 3a rust can be ensured of.
【０００７】図２〜図４に示す接続構造は、ソケット溝
を樹脂被覆層が残存するごとくプレス加工により形成し
たもので、このうち図２に示す接続構造は、連結筒壁３
１−２の近傍にソケット溝３１−３を有する薄肉細径樹
脂被覆金属管３１に有底円筒状の接続用ソケット３２を
外嵌し、該金属管と接続用ソケットとの間に耐圧ゴムホ
ース３３の端部を挿入セットした状態で、接続用ソケッ
ト３２をかしめることにより接続用ソケット底部３２−
１を前記金属管のソケット溝に食い込ませてなる接続構
造であって、この場合は前記ソケット溝３１−３を樹脂
被覆層３１−１が残存するようプレス加工により形成
し、該ソケット溝３１−３に前記接続用ソケット底部３
２−１を食い込ませた構造となしたもので、この接続構
造の場合も接続用ソケット底部３２−１の食込み部およ
び金属管３１のソケット溝３１−３の防錆を確保でき
る。In the connection structure shown in FIGS. 2 to 4, the socket groove is formed by press working so that the resin coating layer remains. Among them, the connection structure shown in FIG.
A cylindrical connection socket 32 with a bottom is externally fitted to a thin thin resin-coated metal pipe 31 having a socket groove 31-3 near the base 1-2, and a pressure-resistant rubber hose 33 is provided between the metal pipe and the connection socket. The connection socket 32 is swaged in a state where the end of the connection socket 32 is set.
1 is cut into the socket groove of the metal tube. In this case, the socket groove 31-3 is formed by press working so that the resin coating layer 31-1 remains. 3 shows the connection socket bottom 3
In this connection structure, it is possible to ensure the rust prevention of the bite portion of the connection socket bottom 32-1 and the socket groove 31-3 of the metal tube 31.
【０００８】また図３に示す接続構造は、連結筒壁４１
−２の近傍にソケット溝４１−３を有する薄肉細径樹脂
被覆金属管４１に有底円筒状の接続用ソケット４２を外
嵌し、該金属管と接続用ソケットとの間に耐圧ゴムホー
ス４３の端部を挿入セットした状態で、接続用ソケット
４２をかしめることにより接続用ソケット底部４２−１
を前記金属管のソケット溝４１−３に食い込ませてなる
接続構造であって、この場合も図３の場合と同様、ソケ
ット溝４１−３を樹脂被覆層４１−１が残存するようプ
レス加工により形成し、該ソケット溝４１−３に前記接
続用ソケット底部４２−１を食い込ませた構造となした
もので、この接続構造の場合も接続用ソケット底部４２
−１の食込み部および金属管４１のソケット溝４１−３
の防錆を確保できる。The connection structure shown in FIG.
A connection socket 42 having a cylindrical shape with a bottom is externally fitted to a thin thin resin-coated metal tube 41 having a socket groove 41-3 near -2, and a pressure-resistant rubber hose 43 is provided between the metal tube and the connection socket. With the end portion inserted and set, the connection socket 42 is swaged to form the connection socket bottom portion 42-1.
3 is cut into the socket groove 41-3 of the metal tube. In this case, similarly to the case of FIG. 3, the socket groove 41-3 is pressed by pressing so that the resin coating layer 41-1 remains. The connection socket bottom portion 42-1 is formed into the socket groove 41-3, and the connection socket bottom portion 42-1 is cut into the socket groove 41-3.
-1 biting portion and socket groove 41-3 of metal tube 41
Rust prevention can be secured.
【０００９】さらに図４に示す接続構造は、連結筒壁５
１−２の近傍にソケット溝５１−３を有する薄肉細径樹
脂被覆金属管５１に有底円筒状の接続用ソケット５２を
外嵌し、該金属管と接続用ソケットとの間に耐圧ゴムホ
ース５３の端部を挿入セットした状態で、接続用ソケッ
ト５２をかしめることにより接続用ソケット底部５２−
１を前記金属管のソケット溝５１−３に食い込ませてな
る接続構造であって、この場合も図３の場合と同様、ソ
ケット溝５１−３を樹脂被覆層５１−１が残存するごと
くプレス加工により形成し、該ソケット溝５１−３に前
記接続用ソケット底部５２−１を食い込ませた構造とな
したもので、この接続構造の場合も接続用ソケット底部
５２−１の食込み部および金属管５１のソケット溝５１
−３の防錆を確保できる。Further, the connection structure shown in FIG.
1-2, a cylindrical connection socket 52 having a bottom is externally fitted to a thin thin resin-coated metal pipe 51 having a socket groove 51-3 in the vicinity thereof, and a pressure-resistant rubber hose 53 is provided between the metal pipe and the connection socket. The connection socket 52 is caulked in a state where the end of the connection socket is inserted and set, so that the connection socket bottom portion 52-
1 is cut into the socket groove 51-3 of the metal tube. In this case, as in the case of FIG. 3, the socket groove 51-3 is pressed so that the resin coating layer 51-1 remains. The connection socket bottom 52-1 is formed into the socket groove 51-3, and the connection socket bottom 52-1 is also formed in the socket groove 51-3. Socket groove 51
-3 rust prevention can be secured.
【００１０】上記図１〜図４に示す接続構造は、いずれ
も薄肉細径樹脂被覆金属管に予めソケット溝を形成して
接続用ソケットをかしめる方式によるものであるが、図
５〜図８に示す接続構造は、薄肉細径樹脂被覆金属管に
ソケット溝を形成せずに接続用ソケットをかしめる方式
によるもので、図５に示す接続構造は、連結筒壁６１−
２を有する薄肉細径樹脂被覆金属管６１の樹脂被覆層６
１−１とオーバーラップするように有底円筒状の接続用
ソケット６２を外嵌し、該金属管と接続用ソケットとの
間に耐圧ゴムホース６３の端部を挿入セットした状態
で、接続用ソケット６２をかしめることにより接続用ソ
ケット底部６２−１を前記金属管６１の外周面に食い込
ませてなる接続構造であって、この場合は接続用ソケッ
ト底部６２−１の金属管６１との対向面を円弧状断面に
形成し、この円弧状断面の接続用ソケット底部６２−１
を薄肉細径樹脂被覆金属管６１に食い込ませた構造とな
したもので、この接続構造の場合も食込み部６１−３に
は樹脂被覆層６１−１がそのまま残存しているので該食
込み部６１−３およびソケット６２の底部６２−１の対
向面の防錆を確保できる。The connection structures shown in FIGS. 1 to 4 are all based on a method in which a socket groove is formed in advance in a thin and small-diameter resin-coated metal tube to caulk a connection socket. The connection structure shown in FIG. 5 employs a method of caulking a connection socket without forming a socket groove in a thin thin resin-coated metal tube. The connection structure shown in FIG.
Coating layer 6 of thin-walled thin resin-coated metal tube 61 having 2
1-1, the connection socket 62 having a bottomed cylindrical shape is fitted so as to overlap with the connection socket 1-1, and the end of the pressure-resistant rubber hose 63 is inserted and set between the metal tube and the connection socket. A connection structure in which the connection socket bottom 62-1 is cut into the outer peripheral surface of the metal tube 61 by caulking 62, and in this case, the surface of the connection socket bottom 62-1 facing the metal tube 61. Are formed in an arc-shaped cross section, and the connection socket bottom portion 62-1 of the arc-shaped cross section is formed.
Is cut into a thin, thin-diameter resin-coated metal tube 61. Also in this connection structure, the resin coating layer 61-1 remains as it is in the bite portion 61-3. -3 and the rust prevention of the opposing surface of the bottom part 62-1 of the socket 62 can be secured.
【００１１】図６に示す接続構造は、薄肉細径樹脂被覆
金属管に食込む接続用ソケット底部の断面構造を斜面と
水平面とで構成したもので、連結筒壁７１−２を有する
薄肉細径樹脂被覆金属管７１に有底円筒状の接続用ソケ
ット７２を外嵌し、該金属管と接続用ソケットとの間に
耐圧ゴムホース７３の端部を挿入セットした状態で、接
続用ソケット７２をかしめることにより接続用ソケット
底部７２−１を前記金属管７１の外周面に食い込ませて
なる接続構造であって、この場合は接続用ソケット底部
７２−１の金属管７１との対向面を中央部は水平面７２
−１ａとし、この水平面７２−１ａの外面側と内面側を
斜面７２−１ｂとし、さらに水平面７２−１ａと斜面７
２−１ｂの接続部分と、斜面７２−１ｂと垂直面７２−
１ｃの接続部分をそれぞれ丸く形成し、この斜面と水平
面とで構成した接続用ソケット底部７２−１を薄肉細径
樹脂被覆金属管７１に食い込ませた構造となしたもの
で、この接続構造の場合も食込み部７１−３には樹脂被
覆層７１−１がそのまま残存しているので該食込み部７
１−３およびソケット７２の底部７２−１の対向面の防
錆を確保できる。The connection structure shown in FIG. 6 is a cross-sectional structure of a bottom portion of a connection socket that cuts into a thin and small-diameter resin-coated metal tube, which is constituted by an inclined surface and a horizontal surface. A connection socket 72 having a bottomed cylindrical shape is externally fitted to the resin-coated metal tube 71, and the connection socket 72 is connected with the end of the pressure-resistant rubber hose 73 inserted and set between the metal tube and the connection socket. This is a connection structure in which the connection socket bottom portion 72-1 is cut into the outer peripheral surface of the metal tube 71 by squeezing. In this case, the surface of the connection socket bottom portion 72-1 facing the metal tube 71 is positioned at the center. Is the horizontal plane 72
-1a, the outer side and the inner side of the horizontal plane 72-1a are defined as a slope 72-1b, and the horizontal plane 72-1a and the slope 7
2-1b, the slope 72-1b and the vertical surface 72-
In the case of this connection structure, the connection portion 1c is formed in a round shape, and the connection socket bottom portion 72-1 formed by the slope and the horizontal surface is cut into the thin thin resin-coated metal tube 71. Since the resin coating layer 71-1 remains as it is in the biting portion 71-3,
Rust prevention can be ensured on the facing surface of the bottom portion 72-1 of the socket 1-3 and the socket 72.
【００１２】図７に示す接続構造は、薄肉細径樹脂被覆
金属管に食込む接続用ソケット底部の断面構造をＶ字状
に形成したもので、連結筒壁８１−２を有する薄肉細径
樹脂被覆金属管８１に有底円筒状の接続用ソケット８２
を外嵌し、該金属管と接続用ソケットとの間に耐圧ゴム
ホース８３の端部を挿入セットした状態で、接続用ソケ
ット８２をかしめることにより接続用ソケット底部８２
−１を前記金属管８１の外周面に食い込ませてなる接続
構造であって、この場合は接続用ソケット底部８２−１
の金属管８１との対向面をＶ字状断面となすとともに、
このＶ字状断面の各角部は図７に示すものと同様、それ
ぞれ丸く形成し、このＶ字状断面の接続用ソケット底部
８２−１を薄肉細径樹脂被覆金属管８１に食い込ませた
構造となしたもので、この接続構造の場合も食込み部８
１−３には樹脂被覆層８１−１がそのまま残存している
ので該食込み部８１−３およびソケット８２の底部８２
−１の対向面の防錆を確保できる。The connecting structure shown in FIG. 7 has a V-shaped cross-sectional structure of the bottom portion of a connecting socket that cuts into a thin-walled thin resin-coated metal tube. A cylindrical connection socket 82 with a bottom is provided on a coated metal tube 81.
With the end of the pressure-resistant rubber hose 83 inserted and set between the metal tube and the connection socket, the connection socket 82 is crimped to form the connection socket bottom 82.
-1 is cut into the outer peripheral surface of the metal tube 81, and in this case, the connection socket bottom 82-1
The surface facing the metal tube 81 has a V-shaped cross section,
Each corner of this V-shaped cross section is formed in a round shape similarly to that shown in FIG. 7, and the connection socket bottom portion 82-1 of this V-shaped cross section is cut into the thin thin resin-coated metal tube 81. In the case of this connection structure,
In 1-3, the resin coating layer 81-1 remains as it is, so that the biting portion 81-3 and the bottom 82 of the socket 82 are formed.
-1 rust prevention on the opposing surface can be ensured.
【００１３】図８に示す接続構造は、薄肉細径樹脂被覆
金属管に食込む接続用ソケット底部の断面構造を外側に
広がるラッパ状に形成したもので、連結筒壁９１−２を
有する薄肉細径樹脂被覆金属管９１に有底円筒状の接続
用ソケット９２を外嵌し、該金属管と接続用ソケットと
の間に耐圧ゴムホース９３の端部を挿入セットした状態
で、接続用ソケット９２をかしめることにより接続用ソ
ケット底部９２−１を前記金属管９１の外周面に食い込
ませてなる接続構造であって、この場合は接続用ソケッ
ト底部９２−１の金属管９１との対向面をラッパ状断面
となし、このラッパ状断面の接続用ソケット底部９２−
１を薄肉細径樹脂被覆金属管９１に食い込ませた構造と
なしたもので、この接続構造の場合も食込み部９１−３
には樹脂被覆層９１−１がそのまま残存しているので該
食込み部９１−３およびソケット９２の底部９２−１の
対向面の防錆を確保できる。The connection structure shown in FIG. 8 is a cross-sectional structure of a bottom portion of a connection socket that cuts into a thin and small-diameter resin-coated metal tube formed in a trumpet shape that spreads outward. A connection socket 92 having a bottomed cylindrical shape is externally fitted to the metal tube 91 coated with a resin and the end of the pressure-resistant rubber hose 93 is inserted and set between the metal tube and the connection socket. A connection structure in which the connection socket bottom 92-1 is cut into the outer peripheral surface of the metal tube 91 by caulking. In this case, the surface of the connection socket bottom 92-1 facing the metal tube 91 is a wrapper. The bottom of the connection socket 92-
1 is made to bite into a thin, thin-diameter resin-coated metal tube 91. In this connection structure, the bite portion 91-3 is also provided.
Since the resin coating layer 91-1 remains as it is, rust prevention on the surface facing the biting portion 91-3 and the bottom 92-1 of the socket 92 can be ensured.
【００１４】図９に示す接続構造は、連結筒壁１１１−
２の近傍に転造加工により施したソケット溝１１１−３
を有する薄肉細径樹脂被覆金属管１１１に有底円筒状の
接続用ソケット１１２を外嵌し、該金属管と接続用ソケ
ットとの間に耐圧ゴムホース１１３の端部を挿入セット
した状態で、接続用ソケット１１２をかしめることによ
り接続用ソケット底部１１２−１を前記金属管のソケッ
ト溝１１１−３に食い込ませてなる接続構造であって、
この場合は前記ソケット溝１１１−３を転造加工により
たとえ当該溝内に樹脂被覆層が存在しないような状態に
形成されても、接続用ソケット底部１１２−１の背面側
開口端部に当該金属管１１１の表面樹脂被覆層１１１−
１を覆う段部１１２−２を形成し、かしめにより前記樹
脂被覆層が残存しないソケット溝１１１−３に接続用ソ
ケット１１２の底部を食い込ませると共に、前記段部１
１２−２の部分で金属管１１１の樹脂被覆層１１１−１
を覆う構造となしたもので、この場合はソケット溝１１
１−３の部分にたとえ樹脂被覆層１１１−１がなくて
も、前記段部１１２−２の部分で金属管１１１の樹脂被
覆層１１１−１を覆っているので、この部分でシールさ
れることにより接続用ソケット底部１１２−１の食込み
部および金属管１１１のソケット溝１１１−３の防錆を
確保できる。The connection structure shown in FIG.
Socket groove 111-3 formed by rolling in the vicinity of No. 2
A cylindrical connection socket 112 having a bottom is externally fitted to a thin thin resin-coated metal tube 111 having a thickness, and the end of a pressure-resistant rubber hose 113 is inserted and set between the metal tube and the connection socket. A connection structure in which the connection socket bottom 112-1 is cut into the socket groove 111-3 of the metal tube by caulking the connection socket 112,
In this case, even if the socket groove 111-3 is formed by a rolling process so that the resin coating layer does not exist in the groove, the metal groove is formed on the rear opening end of the connection socket bottom 112-1. Surface resin coating layer 111- of tube 111
1 is formed to cover the bottom of the connection socket 112 into the socket groove 111-3 where the resin coating layer does not remain by caulking.
12-2, the resin coating layer 111-1 of the metal tube 111
And in this case, the socket groove 11
Even if the portion 1-3 does not have the resin coating layer 111-1, since the step 112-2 covers the resin coating layer 111-1 of the metal tube 111, the portion is sealed at this portion. Accordingly, rust prevention of the biting portion of the connection socket bottom 112-1 and the socket groove 111-3 of the metal tube 111 can be secured.
【００１５】なお、上記図１〜図９に示す接続構造にお
ける１４は、図１０に示すものと同様、薄肉細径樹脂被
覆金属管に内嵌された補強用パイプである。また図１〜
図９に示す接続構造は、金属管に直接樹脂層を設けた例
を示したが、下地に金属めっき層を設けても同様の効果
が得られることはいうまでもない。Reference numeral 14 in the connection structure shown in FIGS. 1 to 9 denotes a reinforcing pipe fitted inside a thin and small-diameter resin-coated metal pipe, similarly to that shown in FIG. In addition, FIG.
Although the connection structure shown in FIG. 9 shows an example in which the resin layer is directly provided on the metal tube, it goes without saying that the same effect can be obtained even if the metal plating layer is provided on the base.
【００１６】[0016]
【発明の効果】以上説明したごとく、本発明によれば、
薄肉細径樹脂被覆金属管に接続用ソケットをかしめて
も、ソケットが食い込んだ部分に当該金属管の外面樹脂
被覆層を確保できるので、ソケットが食込んだ部分の管
表面もソケット底部の対向面も防錆できるという優れた
効果を奏し、薄肉細径樹脂被覆金属管と耐圧ゴムホース
との接続構造として極めて有用性に富むものである。As described above, according to the present invention,
Even if the connection socket is swaged to the thin, thin-diameter resin-coated metal tube, the resin coating layer on the outer surface of the metal tube can be secured at the portion where the socket bites. This has an excellent effect of being able to prevent rust, and is extremely useful as a connection structure between a thin-walled thin-diameter resin-coated metal tube and a pressure-resistant rubber hose.
【図１】本発明の請求項２に対応する薄肉細径樹脂被覆
金属管と耐圧ゴムホースとの接続構造の一実施例を示し
たもので、（ａ）は薄肉細径樹脂被覆金属管に接続用ソ
ケットをかしめた状態を示す一部縦断側面図、（ｂ）は
（ａ）の要部拡大縦断側面図である。FIG. 1 shows an embodiment of a connection structure between a thin-walled thin resin-coated metal tube and a pressure-resistant rubber hose according to claim 2 of the present invention. FIG. 2 is a partially longitudinal side view showing a state in which the socket for use is crimped, and FIG.
【図２】同請求項３に対応する薄肉細径樹脂被覆金属管
と耐圧ゴムホースとの接続構造の一実施例を示したもの
で、（ａ）は薄肉細径樹脂被覆金属管に接続用ソケット
をかしめた状態を示す一部縦断側面図、（ｂ）は（ａ）
の要部拡大縦断側面図である。FIG. 2 shows an embodiment of a connection structure between a thin-walled thin resin-coated metal tube and a pressure-resistant rubber hose according to the third embodiment, and FIG. A partially longitudinal side view showing a crimped state, FIG.
It is a principal part expanded longitudinal side view.
【図３】同請求項３に対応する薄肉細径樹脂被覆金属管
と耐圧ゴムホースとの接続構造の他の実施例を示したも
ので、（ａ）は薄肉細径樹脂被覆金属管に接続用ソケッ
トをかしめた状態を示す一部縦断側面図、（ｂ）は
（ａ）の要部拡大縦断側面図である。FIG. 3 shows another embodiment of a connection structure between a thin-walled thin resin-coated metal tube and a pressure-resistant rubber hose according to the third embodiment. FIG. 4 is a partially longitudinal side view showing a state in which the socket is caulked, and FIG. 4B is an enlarged longitudinal sectional side view of a main part of FIG.
【図４】同請求項３に対応する薄肉細径樹脂被覆金属管
と耐圧ゴムホースとの接続構造の別の実施例を示したも
ので、（ａ）は薄肉細径樹脂被覆金属管に接続用ソケッ
トをかしめた状態を示す一部縦断側面図、（ｂ）は
（ａ）の要部拡大縦断側面図である。FIG. 4 shows another embodiment of a connection structure between a thin-walled thin resin-coated metal tube and a pressure-resistant rubber hose according to the third aspect of the present invention. FIG. 4 is a partially longitudinal side view showing a state in which the socket is caulked, and FIG. 4B is an enlarged longitudinal sectional side view of a main part of FIG.
【図５】同請求項４に対応する薄肉細径樹脂被覆金属管
と耐圧ゴムホースとの接続構造の一実施例を示したもの
で、（ａ）は薄肉細径樹脂被覆金属管に接続用ソケット
をかしめた状態を示す一部縦断側面図、（ｂ）は（ａ）
の要部拡大縦断側面図である。FIG. 5 shows an embodiment of a connection structure between a thin-walled thin resin-coated metal tube and a pressure-resistant rubber hose according to the fourth embodiment, wherein FIG. A partially longitudinal side view showing a crimped state, FIG.
It is a principal part expanded longitudinal side view.
【図６】同請求項４に対応する薄肉細径樹脂被覆金属管
と耐圧ゴムホースとの接続構造の他の実施例を示したも
ので、（ａ）は薄肉細径樹脂被覆金属管に接続用ソケッ
トをかしめた状態を示す一部縦断側面図、（ｂ）は
（ａ）の要部拡大縦断側面図である。FIG. 6 shows another embodiment of a connection structure between a thin-walled thin resin-coated metal tube and a pressure-resistant rubber hose according to the fourth embodiment, and FIG. FIG. 4 is a partially longitudinal side view showing a state in which the socket is caulked, and FIG. 4B is an enlarged longitudinal sectional side view of a main part of FIG.
【図７】同請求項４に対応する薄肉細径樹脂被覆金属管
と耐圧ゴムホースとの接続構造の別の実施例を示したも
ので、（ａ）は薄肉細径樹脂被覆金属管に接続用ソケッ
トをかしめた状態を示す一部縦断側面図、（ｂ）は
（ａ）の要部拡大縦断側面図である。FIG. 7 shows another embodiment of a connection structure between a thin-walled thin resin-coated metal tube and a pressure-resistant rubber hose according to the fourth embodiment, wherein (a) shows a connection structure for connecting a thin-walled thin-diameter resin-coated metal tube. FIG. 4 is a partially longitudinal side view showing a state in which the socket is caulked, and FIG. 4B is an enlarged longitudinal sectional side view of a main part of FIG.
【図８】同請求項４に対応する薄肉細径樹脂被覆金属管
と耐圧ゴムホースとの接続構造のさらに別の実施例を示
したもので、（ａ）は薄肉細径樹脂被覆金属管に接続用
ソケットをかしめた状態を示す一部縦断側面図、（ｂ）
は（ａ）の要部拡大縦断側面図である。FIG. 8 shows still another embodiment of a connection structure between a thin-walled thin resin-coated metal tube and a pressure-resistant rubber hose according to the fourth embodiment, wherein (a) shows a connection to a thin-walled thin-walled resin-coated metal tube. Partial longitudinal side view showing the state where the socket for caulking is shown, (b)
FIG. 4 is an enlarged vertical sectional side view of a main part of FIG.
【図９】同請求項５に対応する薄肉細径樹脂被覆金属管
と耐圧ゴムホースとの接続構造の一実施例を示したもの
で、（ａ）は薄肉細径樹脂被覆金属管に接続用ソケット
をかしめた状態を示す一部縦断側面図、（ｂ）は（ａ）
の要部拡大縦断側面図である。FIG. 9 shows an embodiment of a connection structure between a thin-walled thin resin-coated metal tube and a pressure-resistant rubber hose according to the fifth embodiment. A partially longitudinal side view showing a crimped state, FIG.
It is a principal part expanded longitudinal side view.
【図１０】本発明の対象とする従来の薄肉細径樹脂被覆
金属管と耐圧ゴムホースとの接続構造の一例を示す縦断
面図である。FIG. 10 is a longitudinal sectional view showing an example of a conventional connection structure between a thin, thin-diameter resin-coated metal tube and a pressure-resistant rubber hose to which the present invention is applied.
１１、３１、４１、５１、６１、７１、８１、９１、１
１１ 薄肉細径樹脂被覆金属管 １１−１、３１−１、４１−１、５１−１、６１−１、
７１−１、８１−１、９１−１、１１１−１ 樹脂被覆
層 １１−２、３１−２、４１−２、５１−２、６１−２、
７１−２、８１−２、９１−２、１１１−２ 連結筒壁 １１−３、３１−３、４１−３、５１−３、１１１−３
ソケット溝 １２、３２、４２、５２、６２、７２、８２、９２、１
１２ 接続用ソケット １２−１、３２−１、４２−１、５２−１、１１２−１
ソケット底部 １３、３３、４３、５３、６３、７３、８３、９３、１
１３ 耐圧ゴムホース ６１−３、７１−３、８１−３、９１−３ 食込み部11, 31, 41, 51, 61, 71, 81, 91, 1
11 Thin and thin diameter resin coated metal tube 11-1, 31-1, 41-1, 51-1, 61-1,
71-1, 81-1, 91-1, 111-1 Resin coating layer 11-2, 31-2, 41-2, 51-2, 61-2,
71-2, 81-2, 91-2, 111-2 Connecting cylinder wall 11-3, 31-3, 41-3, 51-3, 111-3
Socket groove 12, 32, 42, 52, 62, 72, 82, 92, 1,
12 Sockets for Connection 12-1, 32-1, 42-1, 52-1, 112-1
Socket bottom 13, 33, 43, 53, 63, 73, 83, 93, 1
13 pressure-resistant rubber hose 61-3, 71-3, 81-3, 91-3 bite portion
Claims (5)
肉細径樹脂被覆金属管に有底円筒状の接続用ソケットを
外嵌し、該金属管と接続用ソケットとの間に耐圧ゴムホ
ースの端部を挿入セットした状態で、接続用ソケットを
かしめることにより接続用ソケット底部を前記金属管の
ソケット溝に食い込ませてなる接続構造において、少な
くとも前記ソケット溝の後端付近に樹脂被覆層を残存さ
せた状態で当該ソケット溝に前記接続用ソケットの底部
を食い込ませた構造となしたことを特徴とする薄肉細径
樹脂被覆金属管と耐圧ゴムホースとの接続構造。A cylindrical connection socket having a bottom is externally fitted to a thin and thin resin-coated metal pipe having a socket groove near a connecting cylinder wall, and a pressure-resistant rubber hose is inserted between the metal pipe and the connection socket. In a connection structure in which the bottom of the connection socket is cut into the socket groove of the metal tube by caulking the connection socket with the end portion inserted and set, a resin coating layer is formed at least near the rear end of the socket groove. A connection structure between a thin, thin-diameter resin-coated metal tube and a pressure-resistant rubber hose, wherein a bottom portion of the connection socket is cut into the socket groove while remaining.
ソケット溝を有する薄肉細径樹脂被覆金属管に有底円筒
状の接続用ソケットを外嵌し、該金属管と接続用ソケッ
トとの間に耐圧ゴムホースの端部を挿入セットした状態
で、接続用ソケットをかしめることにより接続用ソケッ
ト底部を前記金属管のソケット溝に食い込ませてなる接
続構造において、前記転造加工により施すソケット溝を
樹脂被覆層が残存する管軸方向に緩い勾配の傾斜面と軸
芯に垂直な面とで構成し、該ソケット溝に前記接続用ソ
ケットの底部を食い込ませた構造となしたことを特徴と
する薄肉細径樹脂被覆金属管と耐圧ゴムホースとの接続
構造。2. A bottomed cylindrical connection socket is externally fitted to a thin thin resin-coated metal pipe having a socket groove formed by rolling in the vicinity of a connecting cylinder wall, and the metal pipe and the connection socket are connected to each other. In the connection structure in which the connection socket bottom is cut into the socket groove of the metal tube by caulking the connection socket with the end of the pressure-resistant rubber hose inserted and set between the sockets, the socket is formed by the rolling process. The groove is constituted by a slope having a gentle gradient in the pipe axis direction in which the resin coating layer remains and a surface perpendicular to the axis, and has a structure in which the bottom of the connection socket is cut into the socket groove. Connection structure between a thin, thin-diameter resin-coated metal tube and a pressure-resistant rubber hose.
肉細径樹脂被覆金属管に有底円筒状の接続用ソケットを
外嵌し、該金属管と接続用ソケットとの間に耐圧ゴムホ
ースの端部を挿入セットした状態で、接続用ソケットを
かしめることにより接続用ソケット底部を前記金属管の
ソケット溝に食い込ませてなる接続構造において、前記
ソケット溝を樹脂被覆層が残存するごとくプレス加工に
より形成し、該ソケット溝に前記接続用ソケットの底部
を食い込ませた構造となしたことを特徴とする薄肉細径
樹脂被覆金属管と耐圧ゴムホースとの接続構造。3. A cylindrical connection socket with a bottom is externally fitted to a thin thin resin-coated metal pipe having a socket groove near a connecting cylinder wall, and a pressure-resistant rubber hose is inserted between the metal pipe and the connection socket. In a connection structure in which the bottom of the connection socket is cut into the socket groove of the metal tube by caulking the connection socket with the end portion inserted and set, the socket groove is pressed so that the resin coating layer remains. A connection structure between a thin, thin-diameter resin-coated metal tube and a pressure-resistant rubber hose, wherein the connection groove has a bottom portion of the connection socket cut into the socket groove.
覆金属管に有底円筒状の接続用ソケットを外嵌し、該金
属管と接続用ソケットとの間に耐圧ゴムホースの端部を
挿入セットした状態で、接続用ソケットをかしめること
により接続用ソケット底部を前記金属管に食い込ませて
なる接続構造において、ソケット溝を有しない薄肉細径
樹脂被覆金属管に前記接続用ソケットを外嵌し、接続用
ソケット底部を当該金属管の樹脂被覆層を残したまま薄
肉細径樹脂被覆金属管に食い込ませた構造となしたこと
を特徴とする薄肉細径樹脂被覆金属管と耐圧ゴムホース
との接続構造。4. A bottomed cylindrical connection socket is externally fitted to a thin thin resin-coated metal pipe having a connecting cylinder wall at an end, and an end of a pressure-resistant rubber hose is provided between the metal pipe and the connection socket. In a connection structure in which the bottom of the connection socket is bitten into the metal tube by caulking the connection socket in a state in which is inserted and set, the connection socket is inserted into a thin thin resin-coated metal tube having no socket groove. A thin, thin resin-coated metal tube and a pressure-resistant rubber hose, wherein the connection socket bottom portion is cut into the thin, thin, resin-coated metal tube while leaving the resin coating layer of the metal tube. And connection structure.
ソケット溝を有する薄肉細径樹脂被覆金属管に有底円筒
状の接続用ソケットを外嵌し、該金属管と接続用ソケッ
トとの間に耐圧ゴムホースの端部を挿入セットした状態
で、接続用ソケットをかしめることにより接続用ソケッ
ト底部を前記金属管のソケット溝に食い込ませてなる接
続構造において、前記転造加工により溝内に樹脂被覆層
が残存しないソケット溝を形成し、前記接続用ソケット
の底部の背面側開口端部で当該金属管の表面樹脂被覆層
を覆うように、前記樹脂被覆層が残存しないソケット溝
に接続用ソケットの底部を食い込ませた構造となしたこ
とを特徴とする薄肉細径樹脂被覆金属管と耐圧ゴムホー
スとの接続構造。5. A cylindrical connection socket having a bottom is externally fitted to a thin thin resin-coated metal pipe having a socket groove formed by rolling in the vicinity of a connecting cylinder wall, and the metal pipe and the connection socket are connected to each other. In the connection structure in which the connection socket bottom is cut into the socket groove of the metal tube by caulking the connection socket with the end of the pressure-resistant rubber hose inserted and set between the grooves, the inside of the groove is formed by the rolling process. A socket groove where no resin coating layer remains, and is connected to the socket groove where the resin coating layer does not remain so as to cover the resin coating layer on the surface of the metal tube at the rear opening end of the bottom of the connection socket. A connection structure between a thin-walled thin-diameter resin-coated metal tube and a pressure-resistant rubber hose, characterized in that the bottom portion of the socket is cut into the structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000347509A JP4656469B2 (en) | 2000-11-15 | 2000-11-15 | Connection structure of thin-walled thin resin-coated metal tube and pressure-resistant rubber hose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000347509A JP4656469B2 (en) | 2000-11-15 | 2000-11-15 | Connection structure of thin-walled thin resin-coated metal tube and pressure-resistant rubber hose |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002147674A true JP2002147674A (en) | 2002-05-22 |
| JP4656469B2 JP4656469B2 (en) | 2011-03-23 |
Family
ID=18821223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000347509A Expired - Fee Related JP4656469B2 (en) | 2000-11-15 | 2000-11-15 | Connection structure of thin-walled thin resin-coated metal tube and pressure-resistant rubber hose |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4656469B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012037022A (en) * | 2010-08-11 | 2012-02-23 | Sunrise Kogyo Kk | Hose mouthpiece fitting for car air conditioner and method for manufacturing the same |
| CN103047507A (en) * | 2013-01-24 | 2013-04-17 | 江苏日升科技实业有限公司 | Flue corrosion prevention compensator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62204089U (en) * | 1986-06-18 | 1987-12-26 | ||
| JPH04341685A (en) * | 1991-05-17 | 1992-11-27 | Sekisui Chem Co Ltd | Connecting method of plastic pipe |
| JPH0821577A (en) * | 1994-07-06 | 1996-01-23 | Sanou Kogyo Kk | Terminal structure of resin-covered steel pipe |
| JPH10141555A (en) * | 1996-11-11 | 1998-05-29 | Usui Internatl Ind Co Ltd | Connecting structure for thin wall and small diameter metal pipe with pressure rubber hose |
-
2000
- 2000-11-15 JP JP2000347509A patent/JP4656469B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62204089U (en) * | 1986-06-18 | 1987-12-26 | ||
| JPH04341685A (en) * | 1991-05-17 | 1992-11-27 | Sekisui Chem Co Ltd | Connecting method of plastic pipe |
| JPH0821577A (en) * | 1994-07-06 | 1996-01-23 | Sanou Kogyo Kk | Terminal structure of resin-covered steel pipe |
| JPH10141555A (en) * | 1996-11-11 | 1998-05-29 | Usui Internatl Ind Co Ltd | Connecting structure for thin wall and small diameter metal pipe with pressure rubber hose |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012037022A (en) * | 2010-08-11 | 2012-02-23 | Sunrise Kogyo Kk | Hose mouthpiece fitting for car air conditioner and method for manufacturing the same |
| CN103047507A (en) * | 2013-01-24 | 2013-04-17 | 江苏日升科技实业有限公司 | Flue corrosion prevention compensator |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4656469B2 (en) | 2011-03-23 |
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