JPH0228313Y2

JPH0228313Y2 -

Info

Publication number: JPH0228313Y2
Application number: JP1985176621U
Authority: JP
Priority date: 1985-11-15
Filing date: 1985-11-15
Publication date: 1990-07-30
Also published as: JPS6285791U

Description

【考案の詳細な説明】＜産業上の利用分野＞本考案は、配管とハウジングのポートとを接続
する配管接続装置に関するものである。[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a piping connection device for connecting piping and a port of a housing.

＜従来の技術＞従来、動力舵取装置用ポンプとリザーバとを別
置にしたものにおいては、リザーバからポンプへ
油を吸入するためにゴムホースが用いられ、この
ゴムホースの一端とポンプの吸入孔とを結合する
配管接続装置をねじ締め方式にてポンプハウジン
グに固定するようになつている。<Prior art> Conventionally, in systems in which the pump for power steering equipment and the reservoir are placed separately, a rubber hose is used to suck oil from the reservoir into the pump, and one end of the rubber hose is connected to the suction hole of the pump. The piping connection device that connects the pump is fixed to the pump housing using screws.

すなわち、ポンプハウジングに形成した吸入孔
に鉄製の接続管を嵌合し、この接続管に一体結合
した取付プレートをポンプハウジングに肉盛形成
したボルト取付座に接面させて金属製の締付ボル
トにより固定するようにしている。 In other words, a metal connecting pipe is fitted into a suction hole formed in the pump housing, and a mounting plate integrally connected to the connecting pipe is brought into contact with a bolt mounting seat formed on the pump housing, and a metal tightening bolt is attached. I am trying to fix it by.

＜考案が解決しようとする問題点＞従つて従来のものでは、ねじ締め作業が必要と
なり、組付時間が長くなる問題があつた。さらに
鉄製からなる接続管、取付プレートの製作ならび
にねじ穴の加工を必要とし、製作コストが高くつ
く問題があつた。<Problems to be Solved by the Invention> Therefore, in the conventional type, screw tightening work is required, resulting in a problem that the assembly time becomes long. Furthermore, it is necessary to manufacture a connecting pipe and a mounting plate made of iron, as well as to process screw holes, resulting in the problem of high manufacturing costs.

＜問題点を解決するための手段＞本考案は上述した問題点を解決するためになさ
れたもので、接続管はポートへの嵌め込みによつ
てハウジングの外面に当接可能なフランジ部を一
体形成した樹脂からなり、嵌合部の先端にポート
の奥に形成された大径部へ係入する弾性変形可能
な可撓部を軸方向断面を円弧状に形成し、この可
撓部を大径部の係入方向に拡張させるスナツプリ
ングを可撓部の内側の円弧状の部分に設けたもの
である。<Means for solving the problem> The present invention was made to solve the above-mentioned problem, and the connecting pipe has an integrally formed flange part that can come into contact with the outer surface of the housing by fitting into the port. The tip of the fitting part has an elastically deformable flexible part that engages the large diameter part formed at the back of the port, and has an arcuate axial cross section. A snap spring that expands in the direction of insertion of the flexible portion is provided on the inner arcuate portion of the flexible portion.

＜実施例＞以下本考案の実施例を図面に基づいて説明す
る。１０はハウジングであり、このハウジング１
０にポート１１が形成されている。このポート１
１は、小径部１２と、この小径部１２より大径で
かつ有底の大径部１３からなつている。<Examples> Examples of the present invention will be described below based on the drawings. 10 is a housing, and this housing 1
A port 11 is formed at 0. This port 1
1 consists of a small diameter portion 12 and a large diameter portion 13 that is larger in diameter than the small diameter portion 12 and has a bottom.

２０は樹脂からなる接続管であり、この接続管
２０には前記小径部１２に嵌合される嵌合部２１
と、ハウジング１０の外面に当接するフランジ部
２２と、ゴムホース（配管）３０が嵌め込まれる
嵌め込み部２３と、内部にポート１１とゴムホー
ス３０を連通する流通路２４が形成されている。 20 is a connecting tube made of resin, and this connecting tube 20 has a fitting portion 21 that fits into the small diameter portion 12.
A flange portion 22 that contacts the outer surface of the housing 10, a fitting portion 23 into which a rubber hose (piping) 30 is fitted, and a flow path 24 that communicates the port 11 and the rubber hose 30 are formed inside.

嵌合部２１の先端には半径方向に拡張可能な薄
肉の可撓部２５が形成され、この可撓部２５は軸
線方向断面が円弧状に形成され、この可撓部２５
の内側の円弧状の部分にスナツプリング３１が設
けられている。このスナツプリング３１は円弧状
の部分に設けられているため、脱落しにくく、こ
のスナツプリングによつて可撓部２５は大径部１
３にならつて半径方向に拡張され、円弧状の可撓
部２５が大径部１３にポート１１からの抜け方向
に当接する。可撓部は割り溝を設けて半径方向の
拡張を容易にした構成でも良い。 A thin flexible part 25 that can be expanded in the radial direction is formed at the tip of the fitting part 21, and the flexible part 25 has an arcuate cross section in the axial direction.
A snap spring 31 is provided in the inner arcuate portion. Since this snap spring 31 is provided in an arc-shaped portion, it is difficult to fall off, and this snap spring allows the flexible portion 25 to be attached to the large diameter portion 1.
3, the arcuate flexible portion 25 contacts the large diameter portion 13 in the direction of exit from the port 11. The flexible portion may have a structure in which a groove is provided to facilitate expansion in the radial direction.

次に上述した構成に基づいてハウジング１０の
ポート１１にゴムホース３０を接続する動作につ
いて述べる。可撓部２５の内側にスナツプリング
３１を圧入し、可撓部２５を半径方向に拡張させ
る。かかる状態で可撓部２５を半径方向に縮小さ
せながら嵌合部２１を小径部１２に圧入し、ハウ
ジング１０の外面にフランジ部２２が当接するま
でさらに嵌合部２１を小径部１２内に押し込む。
可撓部２５が大径部１３に差しかかるとスナツプ
リング３１のばね力によつて可撓部２５は大径部
１３にならつて半径方向に拡張し、この可撓部２
５が円弧状であるため、可撓部２５を半径方向に
拡張させるためのガタを大径部１３と可撓部２５
間に設ける必要がない。フランジ部２２から可撓
部２５までの距離を、ハウジング１０の外面から
大径部１３までの距離と同じにすれば、フランジ
部２２とハウジング１０の外面間並びに大径部１
３と可撓部２５間に嵌合部２１のポート１１への
挿入方向にガタが生じない。そして次に嵌め込み
部２３にゴムホース３０を嵌め込む。 Next, the operation of connecting the rubber hose 30 to the port 11 of the housing 10 based on the above-described configuration will be described. The snap ring 31 is press-fitted inside the flexible part 25, and the flexible part 25 is expanded in the radial direction. In this state, the fitting part 21 is press-fitted into the small diameter part 12 while contracting the flexible part 25 in the radial direction, and the fitting part 21 is further pushed into the small diameter part 12 until the flange part 22 comes into contact with the outer surface of the housing 10. .
When the flexible portion 25 approaches the large diameter portion 13, the spring force of the snap spring 31 causes the flexible portion 25 to expand in the radial direction along with the large diameter portion 13, and the flexible portion 2
5 has an arcuate shape, the play between the large diameter portion 13 and the flexible portion 25 to expand the flexible portion 25 in the radial direction is
There is no need to provide an interval. If the distance from the flange portion 22 to the flexible portion 25 is the same as the distance from the outer surface of the housing 10 to the large diameter portion 13, the distance between the flange portion 22 and the outer surface of the housing 10 as well as the large diameter portion 1
3 and the flexible part 25 in the insertion direction of the fitting part 21 into the port 11. Then, the rubber hose 30 is fitted into the fitting part 23.

＜考案の効果＞以上述べたように本考案は、可撓部の内側にス
ナツプリングを設けた接続管をハウジングのポー
トに圧入するだけで接続管をハウジングに固定で
きるので組付時間が短かくなる利点が得られる。
さらに接続管を樹脂で形成し、ねじ穴加工を必要
としないため製作コストが安くなる利点が得られ
る。<Effects of the invention> As described above, the invention reduces the assembly time because the connecting pipe can be fixed to the housing by simply press-fitting the connecting pipe with a snap spring inside the flexible part into the port of the housing. Benefits can be obtained.
Furthermore, since the connecting pipe is made of resin and does not require screw hole machining, the manufacturing cost is reduced.

スナツプリングにより可撓部は大径部にならつ
て強く拡張され、この可撓部が円弧状であるた
め、可撓部を半径方向に拡張させるためのガタを
大径部と可撓部間に設ける必要がない。フランジ
部から可撓部までの距離を、ハウジングの外面か
ら大径部までの距離と同じにすれば、フランジ部
とハウジングの外面間並びに大径部と可撓部間に
嵌合部のポートへの挿入方向にガタが生じない。
この結果、接続管がポートへの挿入方向に振動す
る恐れがない利点が得られる。 The flexible part is strongly expanded along with the large diameter part by the snap spring, and since this flexible part has an arc shape, a play is provided between the large diameter part and the flexible part to expand the flexible part in the radial direction. There's no need. If the distance from the flange part to the flexible part is the same as the distance from the outer surface of the housing to the large diameter part, the distance between the flange part and the outer surface of the housing, and between the large diameter part and the flexible part to the port of the fitting part. There is no play in the insertion direction.
As a result, there is an advantage that there is no fear that the connecting tube will vibrate in the direction of insertion into the port.

[Brief explanation of the drawing]

図面は本考案にかかる配管接続装置の断面図。１０……ハウジング、１１……ポート、１２…
…小径部、１３……大径部、２０……接続管、２
１……嵌合部、２３……嵌め込み部、２４……流
通路、２５……可撓部、３０……ゴムホース、３
１……スナツプリング。 The drawing is a sectional view of the piping connection device according to the present invention. 10...housing, 11...port, 12...
...Small diameter part, 13...Large diameter part, 20...Connection pipe, 2
DESCRIPTION OF SYMBOLS 1... Fitting part, 23... Fitting part, 24... Distribution path, 25... Flexible part, 30... Rubber hose, 3
1...Snat Spring.

Claims

[Scope of utility model registration request]

A connecting pipe is fixed to the housing, with a fitting part fitted into the port of the housing at one end, a fitting part into which the piping is fitted at the other end, and a flow path formed inside for communication between the port and the piping. In the piping connection device, the connecting pipe is made of a resin integrally formed with a flange portion that can come into contact with the outer surface of the housing by fitting into the port,
At the tip of the fitting part, an elastically deformable flexible part that engages into the large diameter part formed at the back of the port is formed with an arcuate cross section in the axial direction, and this flexible part engages the large diameter part. A piping connection device characterized in that a snap spring that expands in the direction is provided in an arcuate portion inside the flexible portion.