JP2004162787A - Pipe connection device - Google Patents

Pipe connection device Download PDF

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Publication number
JP2004162787A
JP2004162787A JP2002328663A JP2002328663A JP2004162787A JP 2004162787 A JP2004162787 A JP 2004162787A JP 2002328663 A JP2002328663 A JP 2002328663A JP 2002328663 A JP2002328663 A JP 2002328663A JP 2004162787 A JP2004162787 A JP 2004162787A
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JP
Japan
Prior art keywords
pipe
insertion holes
sides
clamp member
connection device
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.)
Withdrawn
Application number
JP2002328663A
Other languages
Japanese (ja)
Inventor
Ushio Hashimoto
潮 橋本
Makoto Nomura
誠 野村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denso Corp
Original Assignee
Denso Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Denso Corp filed Critical Denso Corp
Priority to JP2002328663A priority Critical patent/JP2004162787A/en
Publication of JP2004162787A publication Critical patent/JP2004162787A/en
Withdrawn legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a pipe connection device for securely and easily connecting pipes with relatively slight force. <P>SOLUTION: A socket portion 2 is provided at the end of one pipe 1 and upper insertion holes 5, 6 and lower insertion holes 7, 8 are provided in both sides of the socket portion 2, while a flange portion 11 insertable into the socket portion 2 is provided at the end of the other pipe 10. In the state that the flange portion 11 of the other pipe 10 is inserted into the socket portion 2 of the one pipe 1, an approximately inversed U-shaped clamp member 15 is fitted into the insertion holes of the socket portion 2 and both pipes are connected and fixed to each other. Narrower leg portions 16, 17 gradually becoming narrower as tending from near the middles are provided on both sides of the clamp member 15 and tapered portions 16a, 17a gradually becoming narrower as tending to the ends are provided near the roots of the narrower leg portions. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、車両用空調装置の冷媒配管等を接続するために好適なパイプ接続装置に関する。
【0002】
【従来の技術】
冷媒配管等を接続するパイプ接続装置として、従来、一方のパイプの先端に大径部を設けると共にそこに筒状の受け口部を固定し、他方のパイプの先端に環状突起を設けると共にOリングをその先端側に嵌装し、他方のパイプの先端を筒状の受け口部内に差し込み、その状態で、ストッパを受け口部の両側に設けた矩形孔に差し込むことにより、両方のパイプを接続するパイプ接続装置が、下記特許文献1などで知られている。
【0003】
【特許文献1】
特開平7−260073号公報
【0004】
この従来のパイプ接続装置は、受け口部の両側の矩形孔に差し込むストッパが、略Ω形で両側に円弧状弾性脚体を設けて形成され、その両側の円弧状弾性脚体を受け口部の矩形孔に差し込むように使用される。このストッパを他方のパイプの外周部(環状突起の元部側)に挟み付ける差し込むことにより、両方のパイプをストッパによって相互に固定して接続する。
【0005】
しかし、この従来のパイプ接続装置は、ストッパ自体の円弧状弾性脚体の弾性力により内側のパイプを方形孔部の外側から挟み付けて接続するため、確実に接続するためには、ストッパの円弧状弾性脚体のばね弾性力を強力にする必要があり、そのばね弾性力が大きいと、ストッパの挿入に大きな力を必要とし、それによって、ストッパに不均衡な挿入力がかかると、パイプが斜めに接続される問題があった。
【0006】
【発明が解決しようとする課題】
本発明は、上述の課題を解決するものであり、比較的小さな力でパイプを良好に且つ簡単に接続することができるパイプ接続装置を提供することを目的とする。
【0007】
【課題を解決するための手段】
上記目的を達成するために、本発明のパイプ接続装置は、一方のパイプの先端に受け口部が設けられ、受け口部の両側に挿入孔が設けられ、他方のパイプの先端に、受け口部に挿入可能なフランジ部が設けられ、一方のパイプの受け口部に他方のパイプのフランジ部を挿入した状態で、略逆U字形のクランプ部材を受け口部の挿入孔に差し込んで、両パイプを接続固定するパイプ接続装置において、クランプ部材の両側に中間部近傍から幅が狭くなる幅狭脚部が設けられ、幅狭脚部の元部寄りに、徐々に幅が先端に向かって狭くなるテーパ部が設けられると共に、幅狭脚部には、幅狭脚部が受け口部の挿入孔に差し込まれたとき、挿入孔の縁部から反力を受けて他方のパイプのフランジ部を押圧する押圧部が設けられたことを特徴とする。
【0008】
ここで、上記パイプ接続装置では、幅狭脚部の先端寄りに湾曲部を設けることができる。また、その受け口部を一方のパイプの先端に一体に形成することができる。また、その受け口部の外周両側に挿入孔として、1対の上挿入孔と1対の下挿入孔を上下に分けて形成することができる。
【0009】
【作用】
上記構成のパイプ接続装置は、一方のパイプの受け口部に他方のパイプのフランジ部を挿入し、その状態で、クランプ部材の両側の幅狭脚部を、受け口部の両側の挿入孔に差し込む。このとき、クランプ部材の両側の幅狭脚部はその幅がテーパ部を介して先端部にかけて狭く形成されているから、大きな力を必要とせずに容易にクランプ部材を挿入孔に差し込むことができる。
【0010】
そして、その差し込み動作の最後で、両側の幅狭脚部のテーパ部が挿入孔の縁部に当ると共に、湾曲部のテーパ部分が挿入孔の縁部に当り、それによって、挿入孔の縁部から幅狭脚部が反力を受け、その押圧部が他方のパイプのフランジ部を押圧する状態となる。
【0011】
したがって、クランプ部材を差し込む際、その差し込み動作の最後で、力を加えるだけで容易にパイプをクランプして接続することができ、パイプの斜め接続などの不具合を防止して、良好にパイプを接続することができる。
【0012】
【発明の実施の形態】
以下、本発明の一実施形態を図面に基づいて説明する。図1はパイプ1とパイプ10を接続するパイプ接続装置の平面図を、図2はその正面図を示し、図3はその断面図を示している。
【0013】
一方のパイプ1の先端には、パイプ10を接続するための受け口部2として、パイプ1の径より大径の大径部3aと、それより大径の中間径部3bと、さらに大径の最大径部4とが、順に連続して形成される。最先端の最大径部4の両側には、図8に示すように、後述のクランプ部材15を差し込むために、一対の上挿入孔5,6と一対の下挿入孔7,8が形成される。これら2対の挿入孔5,6,7,8は矩形孔として上下に分けて形成され、上方から略逆U字形のクランプ部材15の両側の幅狭脚部16,17を差し込むことが可能である。パイプ1の大径部2の内径は、図2に示すように、他方のパイプ10の差込み先端部12を挿入可能な寸法に形成され、また、最大径部4の内径は他方のパイプ10のフランジ部11を挿入可能な寸法に形成されている。
【0014】
他方のパイプ10の先端には、図2、図8に示すように、一方のパイプ1の受け口部2の大径部3a内に差し込まれる差込み先端部12とその元部側にフランジ部11が形成される。そして図2のように、パイプ1の受け口部2にパイプ10を差し込んだ際、パイプ10のフランジ部11が受け口部2の最大径部4の内側端部に当接可能となっている。また、このパイプ10のフランジ部11がパイプ1の最大径部4の内側端部に当接したとき、最大径部4の外周部両側に設けた2対の上挿入孔5,6と下挿入孔7,8は、フランジ部11の側部に揃うように位置している。そして、パイプ1の受け口部2の最大径部4の上挿入孔5,6と下挿入孔7,8は、略逆U字形のクランプ部材15の両側の幅狭脚部16,17が差し込まれ嵌着可能な大きさに形成されている。
【0015】
クランプ部材15は、図5、図6に示すように、略逆U字形に形成されて、両側に幅狭脚部16,17を有し、それらの幅狭脚部16,17を上部の幅広連結部15aで連結した構造である。クランプ部材15の上部は幅広連結部15aとして幅広に形成され、両側の幅狭脚部16,17へとテーパ部16a,17aを介して連続している。つまり、この幅広連結部15aの幅を持った部分から幅狭脚部16,17に変わる部分(パイプ1の上挿入孔5,6に嵌入する部分)にテーパ部16a,17aが形成される。
【0016】
さらに、両側の幅狭脚部16,17には、このテーパ部16a,17aの反対側に、フランジ部11を押圧するための押圧部16b、17bが平坦面として形成される。テーパ部16a,17aはクランプ部材15が上挿入孔5,6に挿入されたとき、最後にその上部が上挿入部5,6の反フランジ部側の縁部に当り、テーパ部16a,17aの反対側の押圧部16b、17bが他方のパイプ10のフランジ部11を押圧する。
【0017】
また、クランプ部材15の両側の幅狭脚部16,17の先端寄りには、図5、図6に示すように、テーパ部分を有する小さな湾曲部18,19が形成され、クランプ部材15を下挿入孔7,8に挿入したとき、湾曲部18,19が下挿入孔7,8の縁部に係止され、容易に外れない構造となっている。
【0018】
さらに、この幅狭脚部16,17の湾曲部18,19には、図6に示すように、上記のテーパ部16a,17aと同様なテーパ部分が設けられ、その湾曲部18,19のテーパ部分は、その上部が下挿入孔7,8に嵌入したとき、その縁部に当ってクランプ部材15の押圧部16b、17bがパイプ10のフランジ部11を押圧するように作用する。上記構成のクランプ部材15は、適度な弾性を有する合成樹脂または金属により形成することができ、パイプ1,10は、金属製である。
【0019】
このように構成されたパイプ1とパイプ10を相互に接続する場合、まず、パイプ10の差込み先端部12にOリングなどのシール材13を嵌装し、その状態で、パイプ10の差込み先端部12をパイプ1先端の受け口部2内に差し込み、そのまま奥の大径部12内まで(差込み端まで)押し込む。これにより、パイプ10の差込み先端部12はシール材13を介して受け口部2の大径部3aに嵌合し、パイプ10のフランジ部11がパイプ1の最大径部4の内側の段差部に当接する。
【0020】
次に、この状態で、クランプ部材15の両側の幅狭脚部16,17を、受け口部2の最大径部4の両側の上挿入孔5,6に差し込み、そして最後にそれを押し込むようにする。このとき、幅狭脚部16,17は、その幅が矩形孔の上挿入孔5,6の内径よりかなり狭く細く形成されているから、それほど力を加えなくても、弱い力で容易に挿入することができる。そして、挿入された幅狭脚部16,17は、最大径部4内を通り、その先端が下挿入孔7,8から外側に出るように、その下挿入孔7,8に挿通される。
【0021】
そして最後に押し込むとき、クランプ部材15の上部のテーパ部16a,17aが上挿入孔5,6に嵌入し、上挿入孔5,6の縁部に押されて、幅狭脚部16,17の押圧部16b、17bがフランジ部11に押し付けられ、クランプ部材15が両パイプ1,10の接続部をクランプした状態となる。さらに、幅狭脚部16,17の先端寄りの湾曲部18,19が下挿入孔7,8に嵌入した際、その湾曲部18,19のテーパ部分が孔の縁部に当ってフランジ11側に押されるように反力を受けるため、押圧部16b、17bがさらにフランジ部11を押圧するように作用する。そして、クランプ部材15が受け口部2の上挿入孔5,6と下挿入孔7,8に完全に差し込まれたとき、クランプ部材15の両側の幅狭脚部16,17の先端よりの湾曲部18,19が下挿入孔7,8に係止され、クランプ部材15の抜けが防止される状態となる。
【0022】
このように、クランプ部材15を受け口部2の上挿入孔5,6と下挿入孔7,8に差し込んで、最後にそれを押し込んだとき、テーパ部16a,17aと湾曲部18,19が押圧部16b、17bを介してフランジ部11を押圧するように作用するため、クランプ部材15を挿入孔に差し込む当初は、軽く差し込むことができ、最後に適度な力で押し込むだけで、クランプ部材15を使用してパイプ10のフランジ部11を、パイプ1の受け口部2に対し容易にクランプし接続することができる。また、クランプ部材15を差し込む際、最初は軽く差し込むことができるため、接続されるパイプ10に曲げ方向の力が加わらず、パイプ1に対しパイプ10が斜めに接続されることを防止することができる。
【0023】
なお、上記実施形態では、パイプ1の先端に受け口部2を一体に形成したが、別部品の受け口部をパイプの先端に嵌着して使用することもできる。また、上記受け口部2の最大径部4の両側に2対の上下挿入孔5〜8に設けたが、両側に1対の長孔を形成し、そこにクランプ部材を差し込むこともできる。
【0024】
【発明の効果】
以上説明したように、本発明のパイプ接続装置は、クランプ部材の両側の幅狭脚部の幅が、テーパ部を介して先端部にかけて狭く形成されているから、大きな力を必要とせずに容易にクランプ部材を挿入孔に差し込むことができる。また、その差し込み動作の最後で、両側の幅狭脚部のテーパ部が挿入孔の縁部に当ると共に、湾曲部のテーパ部分が挿入孔の縁部に当り、それによって、挿入孔の縁部から幅狭脚部が反力を受け、その押圧部が他方のパイプのフランジ部を押圧する状態となるから、クランプ部材を差し込む際、その差し込み動作の最後で、力を加えるだけで容易にパイプをクランプして接続することができ、パイプの斜め接続などの不具合を防止して、良好にパイプを接続することができる。
【図面の簡単な説明】
【図1】本発明の一実施形態を示し、(a)はパイプ接続装置の平面図、(b)はその正面図である。
【図2】図1のII−II断面図である。
【図3】同パイプ接続装置の右側面図である。
【図4】図3のIV−IV断面図である。
【図5】クランプ部材15の側面図である。
【図6】クランプ部材15の正面図である。
【図7】パイプ接続装置の斜視図である。
【図8】パイプ接続装置の分解斜視図である。
【符号の説明】
1−パイプ
2−受け口部
5,6−上挿入孔
7,8−下挿入孔
10−パイプ
11−フランジ部
15−クランプ部材
16,17−幅狭脚部
16a,17a−テーパ部
16b、17b−押圧部
18,19−湾曲部
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a pipe connection device suitable for connecting a refrigerant pipe or the like of a vehicle air conditioner.
[0002]
[Prior art]
Conventionally, as a pipe connecting device for connecting a refrigerant pipe or the like, a large-diameter portion is provided at the tip of one pipe, a cylindrical receiving portion is fixed there, and an annular projection is provided at the tip of the other pipe, and an O-ring is provided. A pipe connection that connects both pipes by fitting to the distal end side, inserting the distal end of the other pipe into a cylindrical socket, and then inserting the stopper into rectangular holes provided on both sides of the socket. An apparatus is known from Patent Document 1 below.
[0003]
[Patent Document 1]
JP-A-7-260073 [0004]
In this conventional pipe connection device, stoppers to be inserted into rectangular holes on both sides of the receiving portion are formed in a substantially Ω shape with arcuate elastic legs provided on both sides, and the arcuate elastic legs on both sides thereof are rectangular in the receiving portion. Used to plug into holes. By inserting this stopper into the outer peripheral portion of the other pipe (on the side closer to the base of the annular projection), both pipes are fixed and connected to each other by the stopper.
[0005]
However, in this conventional pipe connecting device, the inner pipe is sandwiched and connected from the outside of the rectangular hole by the elastic force of the arc-shaped elastic legs of the stopper itself. It is necessary to increase the spring elastic force of the arcuate elastic legs, and if the spring elastic force is large, a large force is required for inserting the stopper. There was a problem of being connected diagonally.
[0006]
[Problems to be solved by the invention]
An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to provide a pipe connecting device that can connect a pipe satisfactorily and easily with a relatively small force.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, a pipe connection device according to the present invention has a receiving portion provided at a tip of one pipe, insertion holes provided at both sides of the receiving portion, and an insertion hole provided at a tip of the other pipe. A possible flange portion is provided, and in a state where the flange portion of the other pipe is inserted into the receiving portion of one pipe, the substantially inverted U-shaped clamp member is inserted into the insertion hole of the receiving portion to connect and fix both pipes. In the pipe connection device, narrow legs are provided on both sides of the clamp member, the width of which narrows from the vicinity of the intermediate portion, and a tapered portion whose width gradually decreases toward the tip is provided near the base of the narrow leg. In addition, the narrow leg portion has a pressing portion that receives a reaction force from the edge of the insertion hole and presses the flange portion of the other pipe when the narrow leg portion is inserted into the insertion hole of the receiving portion. It is characterized by having been done.
[0008]
Here, in the pipe connection device, a curved portion can be provided near the distal end of the narrow leg portion. Further, the receiving portion can be formed integrally with the tip of one pipe. In addition, a pair of upper insertion holes and a pair of lower insertion holes can be formed vertically on both sides of the outer periphery of the receptacle as upper and lower holes.
[0009]
[Action]
In the pipe connection device having the above configuration, the flange of the other pipe is inserted into the socket of one pipe, and in this state, the narrow legs on both sides of the clamp member are inserted into the insertion holes on both sides of the socket. At this time, since the width of the narrow leg portions on both sides of the clamp member is narrowed toward the distal end portion via the tapered portion, the clamp member can be easily inserted into the insertion hole without requiring a large force. .
[0010]
At the end of the insertion operation, the tapered portions of the narrow legs on both sides hit the edge of the insertion hole, and the tapered portion of the curved portion hits the edge of the insertion hole. , The narrow leg portion receives a reaction force, and the pressing portion presses the flange portion of the other pipe.
[0011]
Therefore, when inserting the clamp member, the pipe can be easily clamped and connected only by applying force at the end of the insertion operation, preventing problems such as oblique connection of the pipe and connecting the pipe well. can do.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a plan view of a pipe connecting device for connecting a pipe 1 and a pipe 10, FIG. 2 is a front view thereof, and FIG. 3 is a sectional view thereof.
[0013]
At the tip of one of the pipes 1, a large diameter portion 3a larger than the diameter of the pipe 1, an intermediate diameter portion 3b larger than that, and a larger diameter The maximum diameter part 4 is formed continuously in order. As shown in FIG. 8, a pair of upper insertion holes 5, 6 and a pair of lower insertion holes 7, 8 are formed on both sides of the foremost maximum diameter portion 4, as shown in FIG. . These two pairs of insertion holes 5, 6, 7, 8 are formed vertically as rectangular holes, and the narrow legs 16, 17 on both sides of the substantially inverted U-shaped clamp member 15 can be inserted from above. is there. As shown in FIG. 2, the inner diameter of the large diameter portion 2 of the pipe 1 is formed to a size that allows the insertion tip 12 of the other pipe 10 to be inserted. The flange portion 11 is formed in a size that allows the insertion.
[0014]
As shown in FIGS. 2 and 8, at the tip of the other pipe 10, an insertion tip 12 inserted into the large diameter portion 3 a of the socket 2 of the one pipe 1 and a flange 11 at the base side thereof. It is formed. As shown in FIG. 2, when the pipe 10 is inserted into the receiving portion 2 of the pipe 1, the flange portion 11 of the pipe 10 can contact the inner end of the maximum diameter portion 4 of the receiving portion 2. When the flange portion 11 of the pipe 10 comes into contact with the inner end of the maximum diameter portion 4 of the pipe 1, two pairs of upper insertion holes 5, 6 provided on both sides of the outer circumference of the maximum diameter portion 4 and the lower insertion hole 5 are provided. The holes 7 and 8 are located so as to be aligned with the side of the flange portion 11. The upper insertion holes 5 and 6 and the lower insertion holes 7 and 8 of the largest diameter portion 4 of the receiving portion 2 of the pipe 1 are inserted with narrow leg portions 16 and 17 on both sides of a substantially inverted U-shaped clamp member 15. It is formed in a size that can be fitted.
[0015]
As shown in FIGS. 5 and 6, the clamp member 15 is formed in a substantially inverted U-shape and has narrow legs 16 and 17 on both sides. It is a structure connected by the connection part 15a. The upper portion of the clamp member 15 is formed to be wide as a wide connecting portion 15a, and is connected to narrow legs 16 and 17 on both sides via tapered portions 16a and 17a. In other words, the tapered portions 16a and 17a are formed at portions where the width of the wide connecting portion 15a is changed to the narrow legs 16 and 17 (portions that fit into the upper insertion holes 5 and 6 of the pipe 1).
[0016]
Further, pressing portions 16b, 17b for pressing the flange portion 11 are formed as flat surfaces on the opposite sides of the tapered portions 16a, 17a on the narrow leg portions 16, 17 on both sides. When the clamp member 15 is inserted into the upper insertion holes 5 and 6, the upper portions of the tapered portions 16 a and 17 a finally hit the edges of the upper insertion portions 5 and 6 on the side opposite to the flange portion, and the tapered portions 16 a and 17 a are formed. The opposite pressing portions 16b, 17b press the flange portion 11 of the other pipe 10.
[0017]
As shown in FIGS. 5 and 6, small curved portions 18 and 19 having tapered portions are formed near the distal ends of the narrow leg portions 16 and 17 on both sides of the clamp member 15. When inserted into the insertion holes 7, 8, the curved portions 18, 19 are locked to the edges of the lower insertion holes 7, 8, so that they are not easily removed.
[0018]
Further, as shown in FIG. 6, the curved portions 18, 19 of the narrow leg portions 16, 17 are provided with tapered portions similar to the tapered portions 16a, 17a. When the upper part is fitted into the lower insertion holes 7 and 8, the pressing portions 16b and 17b of the clamp member 15 press against the flange portion 11 of the pipe 10 when the upper portions are fitted into the lower insertion holes 7 and 8. The clamp member 15 having the above configuration can be formed of a synthetic resin or a metal having an appropriate elasticity, and the pipes 1 and 10 are made of metal.
[0019]
When connecting the pipe 1 and the pipe 10 configured as described above to each other, first, a sealing material 13 such as an O-ring is fitted to the insertion tip 12 of the pipe 10, and in this state, the insertion tip of the pipe 10 is fitted. 12 is inserted into the receptacle 2 at the tip of the pipe 1 and pushed into the large diameter portion 12 at the back (to the insertion end). As a result, the insertion tip portion 12 of the pipe 10 is fitted into the large diameter portion 3a of the receiving portion 2 via the sealing material 13, and the flange portion 11 of the pipe 10 is fitted to the step inside the maximum diameter portion 4 of the pipe 1. Abut
[0020]
Next, in this state, the narrow legs 16, 17 on both sides of the clamp member 15 are inserted into the upper insertion holes 5, 6 on both sides of the maximum diameter portion 4 of the socket 2, and finally, the narrow legs 16, 17 are pushed. I do. At this time, the narrow leg portions 16 and 17 are formed so that the width thereof is considerably narrower and narrower than the inner diameter of the upper insertion holes 5 and 6 of the rectangular holes. can do. Then, the inserted narrow leg portions 16 and 17 are inserted into the lower insertion holes 7 and 8 such that the distal ends of the narrow leg portions 16 and 17 pass through the maximum diameter portion 4 and protrude outward from the lower insertion holes 7 and 8.
[0021]
And when pushing in last, the upper taper part 16a, 17a of the clamp member 15 fits in the upper insertion holes 5, 6, and is pushed by the edge part of the upper insertion holes 5, 6, and the narrow leg parts 16, 17 The pressing portions 16b and 17b are pressed against the flange portion 11, and the clamp member 15 is in a state of clamping the connection between the pipes 1 and 10. Further, when the curved portions 18 and 19 near the distal ends of the narrow leg portions 16 and 17 are fitted into the lower insertion holes 7 and 8, the tapered portions of the curved portions 18 and 19 come into contact with the edge portions of the holes and the flange 11 side. The pressing portions 16b and 17b act so as to further press the flange portion 11 because they receive a reaction force so as to be pressed. When the clamp member 15 is completely inserted into the upper insertion holes 5, 6 and the lower insertion holes 7, 8 of the receptacle 2, the curved portions from the distal ends of the narrow legs 16, 17 on both sides of the clamp member 15. 18 and 19 are locked in the lower insertion holes 7 and 8, and the clamp member 15 is prevented from coming off.
[0022]
Thus, when the clamp member 15 is inserted into the upper insertion holes 5 and 6 and the lower insertion holes 7 and 8 of the receiving portion 2 and finally pushed in, the tapered portions 16a and 17a and the curved portions 18 and 19 are pressed. In order to act to press the flange portion 11 through the portions 16b and 17b, the clamp member 15 can be inserted lightly at the beginning when the clamp member 15 is inserted into the insertion hole. The flange portion 11 of the pipe 10 can be easily clamped and connected to the receiving portion 2 of the pipe 1 when used. When the clamp member 15 is inserted, it can be inserted lightly at first, so that a force in the bending direction is not applied to the pipe 10 to be connected, so that the pipe 10 can be prevented from being obliquely connected to the pipe 1. it can.
[0023]
In the above-described embodiment, the receptacle 2 is formed integrally with the tip of the pipe 1. However, the receptacle of another component may be used by fitting it to the tip of the pipe. In addition, although two pairs of upper and lower insertion holes 5 to 8 are provided on both sides of the maximum diameter portion 4 of the receptacle 2, a pair of long holes may be formed on both sides, and a clamp member may be inserted there.
[0024]
【The invention's effect】
As described above, in the pipe connection device of the present invention, the width of the narrow leg portions on both sides of the clamp member is formed narrower toward the distal end portion via the tapered portion, so that it is easy without requiring a large force. The clamp member can be inserted into the insertion hole. Also, at the end of the insertion operation, the tapered portions of the narrow legs on both sides hit the edge of the insertion hole, and the tapered portion of the curved portion hits the edge of the insertion hole. The narrow leg portion receives a reaction force from it, and the pressing portion presses the flange portion of the other pipe, so when inserting the clamp member, at the end of the insertion operation, simply apply a force Can be connected by clamping, and problems such as oblique connection of pipes can be prevented, and the pipes can be connected well.
[Brief description of the drawings]
1A and 1B show an embodiment of the present invention, wherein FIG. 1A is a plan view of a pipe connection device, and FIG. 1B is a front view thereof.
FIG. 2 is a sectional view taken along line II-II of FIG.
FIG. 3 is a right side view of the pipe connection device.
FIG. 4 is a sectional view taken along line IV-IV of FIG. 3;
FIG. 5 is a side view of the clamp member 15;
FIG. 6 is a front view of the clamp member 15;
FIG. 7 is a perspective view of a pipe connection device.
FIG. 8 is an exploded perspective view of the pipe connection device.
[Explanation of symbols]
1-Pipe 2-Receiving Portion 5,6-Upper Inserting Hole 7,8-Lower Inserting Hole 10-Pipe 11-Flange 15-Clamping Member 16,17-Narrow Leg 16a, 17a-Tapered Part 16b, 17b- Pressing parts 18, 19-curved part

Claims (4)

一方のパイプの先端に受け口部が設けられ、該受け口部の両側に挿入孔が設けられ、他方のパイプの先端に該受け口部に挿入可能なフランジ部が設けられ、該一方のパイプの受け口部に該他方のパイプのフランジ部を挿入した状態で、略逆U字形のクランプ部材を受け口部の挿入孔に差し込んで、両パイプを接続固定するパイプ接続装置において、
該クランプ部材の両側には中間部近傍から幅が狭くなる幅狭脚部が設けられ、該幅狭脚部の元部寄りに徐々に幅が先端に向かって狭くなるテーパ部が設けられると共に、該幅狭脚部には該幅狭脚部が受け口部の挿入孔に差し込まれたとき、該挿入孔の縁部から反力を受けて他方のパイプのフランジ部を押圧する押圧部が設けられたことを特徴とするパイプ接続装置。
A receiving portion is provided at a tip of one of the pipes, insertion holes are provided on both sides of the receiving portion, and a flange portion that can be inserted into the receiving portion is provided at a tip of the other pipe, and a receiving portion of the one pipe is provided. In a pipe connection device that inserts a substantially inverted U-shaped clamp member into an insertion hole of a receiving portion while the flange portion of the other pipe is inserted, and connects and fixes the two pipes,
On both sides of the clamp member, there are provided narrow legs which become narrower in the vicinity of the middle portion, and tapered portions whose width gradually narrows toward the tip are provided near the base of the narrow legs, The narrow leg portion is provided with a pressing portion for receiving a reaction force from an edge of the insertion hole and pressing the flange portion of the other pipe when the narrow leg portion is inserted into the insertion hole of the receptacle. A pipe connection device, characterized in that:
前記幅狭脚部の先端寄りに湾曲部が設けられたことを特徴とする請求項1記載のパイプ接続装置。The pipe connection device according to claim 1, wherein a curved portion is provided near a tip of the narrow leg portion. 前記受け口部が前記一方のパイプの先端に一体に形成されたことを特徴とする請求項1記載のパイプ接続装置。The pipe connection device according to claim 1, wherein the receiving portion is formed integrally with a tip of the one pipe. 前記受け口部の外周部の両側に1対の上挿入孔と1対の下挿入孔が形成されたことを特徴とする請求項1記載のパイプ接続装置。The pipe connection device according to claim 1, wherein a pair of upper insertion holes and a pair of lower insertion holes are formed on both sides of an outer peripheral portion of the receptacle.
JP2002328663A 2002-11-12 2002-11-12 Pipe connection device Withdrawn JP2004162787A (en)

Priority Applications (1)

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JP2002328663A JP2004162787A (en) 2002-11-12 2002-11-12 Pipe connection device

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006307872A (en) * 2005-04-26 2006-11-09 Jiyopuratsukusu Kk Faucet joint
JP2014119019A (en) * 2012-12-17 2014-06-30 Rinnai Corp Connection mechanism
JP2014119008A (en) * 2012-12-14 2014-06-30 Hitachi Metals Ltd Piping support device
JP2018199437A (en) * 2017-05-29 2018-12-20 日本化薬株式会社 Mounting structure for gas generator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006307872A (en) * 2005-04-26 2006-11-09 Jiyopuratsukusu Kk Faucet joint
JP2014119008A (en) * 2012-12-14 2014-06-30 Hitachi Metals Ltd Piping support device
JP2014119019A (en) * 2012-12-17 2014-06-30 Rinnai Corp Connection mechanism
JP2018199437A (en) * 2017-05-29 2018-12-20 日本化薬株式会社 Mounting structure for gas generator

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