JP2005121082A - Port plug - Google Patents

Port plug Download PDF

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Publication number
JP2005121082A
JP2005121082A JP2003354951A JP2003354951A JP2005121082A JP 2005121082 A JP2005121082 A JP 2005121082A JP 2003354951 A JP2003354951 A JP 2003354951A JP 2003354951 A JP2003354951 A JP 2003354951A JP 2005121082 A JP2005121082 A JP 2005121082A
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Japan
Prior art keywords
port
fitting
fitting hole
fitted
plug
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JP2003354951A
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JP4415214B2 (en
Inventor
Akiyoshi Endo
昭良 遠藤
Tetsuo Shimizu
哲郎 清水
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KYB Corp
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Kayaba Industry Co Ltd
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Priority to JP2003354951A priority Critical patent/JP4415214B2/en
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Publication of JP4415214B2 publication Critical patent/JP4415214B2/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a port plug capable of improving the sealing force to a port and free from problems such as liquid leakage and removing from the port. <P>SOLUTION: This port plug 5 is used for closing the port 1 having a first fitting hole 3 opened on a port face 2 and a second fitting hole 4 formed at an inner part with respect to the first fitting hole 3. A flange part 6 is formed on an upper part, a first fitted part 7 is formed at a lower part of the flange part 6, and a second fitted part 9 is formed at a lower part of the first fitted part 7. The first fitted part 7 is fitted to the first fitting hole 3 of the port 1, and the second fitted part 9 is fitted to the second fitting hole 4. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、油圧機器等のねじポートを閉塞して塗装時のダストの侵入や、残り油の油漏れを防ぐポートプラグに関するものである。   The present invention relates to a port plug that closes a screw port of a hydraulic device or the like to prevent dust from entering during painting and leakage of residual oil.

図４に示すように油圧機器等のポート１は、ポート面２を開口してネジ加工が施されている周壁３ａを有する第１嵌合孔３と、この第１嵌合孔３と連通し、更に奥に設けられた第２嵌合孔４とを有する構成とされているものが一般的である。   As shown in FIG. 4, the port 1 of a hydraulic device or the like is in communication with the first fitting hole 3 having a peripheral wall 3 a that is opened by opening the port surface 2 and is threaded. In addition, a configuration having a second fitting hole 4 provided in the back is generally used.

このポートを塞ぐ部材として、ポートプラグがあり、このポートプラグはゴム等の弾性を有する材料で成形されている。図５（ａ）に示すポートプラグ５ａはポート１の第１嵌合孔３の周壁３ａのみに嵌合して、このポート１を閉塞するものである（特許文献１参照。）。また、図５（ｂ）に示すポートプラグ５ｂはポート１の第２嵌合孔４の周壁４ａのみに嵌合して、このポートを閉塞するものである。
実開昭５８−７６８６２号公報 As a member for closing the port, there is a port plug, and the port plug is formed of a material having elasticity such as rubber. The port plug 5a shown in FIG. 5A is fitted only to the peripheral wall 3a of the first fitting hole 3 of the port 1 to close the port 1 (see Patent Document 1). Further, the port plug 5b shown in FIG. 5B is fitted only to the peripheral wall 4a of the second fitting hole 4 of the port 1 and closes this port.
Japanese Utility Model Publication No. 58-76862

しかしながら、上記従来のポートプラグ５ａ，５ｂは図５（ｂ）では、油圧機器等に用いられる場合、ネジ加工部に残留した油圧検査後の残り油がネジ加工部とポートプラグ５ｂとの隙間を上昇してポート１ににじみ出る場合があった。   However, in the case where the conventional port plugs 5a and 5b are used in a hydraulic device or the like in FIG. 5B, the remaining oil after the hydraulic pressure inspection remaining in the threaded portion has a gap between the threaded portion and the port plug 5b. There was a case of rising and oozing into port 1.

また、図５（ａ）では、気温の上昇によって油圧機器等の内部空気の圧力が高まると、ポートプラグ５ａがポート１から上昇して行き、外れてしまう場合があった。   Further, in FIG. 5A, when the pressure of the internal air of the hydraulic equipment or the like increases due to an increase in temperature, the port plug 5a may rise from the port 1 and come off.

本発明は上記点に鑑み、ポートに対するシール力増強し、液漏れや、ポートから外れる不具合がないポートプラグを提供することを目的とする。   The present invention has been made in view of the above points, and it is an object of the present invention to provide a port plug that enhances the sealing force on the port and does not have liquid leakage or a problem of disconnection from the port.

請求項１の発明は、ポート面に開口した第１嵌合孔と、該第１嵌合孔よりも内部に設けられた第２嵌合孔とを有するポートを閉塞するポートプラグにおいて、上部に設けられた鍔部と、該鍔部の下方に設けられた第１嵌合部と、この第１嵌合部よりもさらに下方に設けられた第２嵌合部とを有し、第１嵌合部はポートの第１嵌合孔と嵌合し、第２嵌合部はポートの第２嵌合孔と嵌合することに特徴を有する。   According to a first aspect of the present invention, there is provided a port plug for closing a port having a first fitting hole opened in the port surface and a second fitting hole provided inside the first fitting hole. A first fitting portion, a first fitting portion provided below the flange portion, and a second fitting portion provided further below the first fitting portion. The joining portion is fitted with the first fitting hole of the port, and the second fitting portion is fitted with the second fitting hole of the port.

したがって、ポートの第１嵌合孔をポートプラグの第１嵌合部で塞ぎ、ポートの第２嵌合孔をポートプラグの第２嵌合部で塞ぐものである。   Therefore, the first fitting hole of the port is closed by the first fitting portion of the port plug, and the second fitting hole of the port is closed by the second fitting portion of the port plug.

請求項２の発明は、請求項１の発明において、第２嵌合孔の最上部に第２嵌合部の先端部が接触した状態で、第１嵌合孔の最上部に第１嵌合部の先端部が接触した状態となることに特徴を有する。   According to a second aspect of the present invention, in the first aspect of the invention, the first fitting is performed on the uppermost portion of the first fitting hole in a state in which the tip of the second fitting portion is in contact with the uppermost portion of the second fitting hole. It has the characteristics that it will be in the state which the front-end | tip part of the part contacted.

したがって、ポートの第１嵌合孔と第２嵌合孔とを塞ぐ場合に、ポートプラグの第１嵌合部と第２嵌合部とが各々同時に第１嵌合孔の最上部と第２嵌合孔の最上部とに接触する構成としている。   Therefore, when the first fitting hole and the second fitting hole of the port are closed, the first fitting portion and the second fitting portion of the port plug are simultaneously connected to the uppermost portion of the first fitting hole and the second fitting hole, respectively. It is set as the structure which contacts the uppermost part of a fitting hole.

請求項３の発明は、請求項１又は２の発明において、鍔部は、該鍔部の外周に向かうにしたがってポート側へ傾斜するように形成したことに特徴を有する。   The invention of claim 3 is characterized in that, in the invention of claim 1 or 2, the flange portion is formed so as to incline toward the port side toward the outer periphery of the flange portion.

したがって、鍔部の傾斜面がポート面に吸着することができる構成としている。   Therefore, it is set as the structure which the sloping surface of a collar part can adsorb | suck to a port surface.

請求項１の発明は、ポート面に開口した第１嵌合孔と、該第１嵌合孔よりも内部に設けられた第２嵌合孔とを有するポートを閉塞するポートプラグにおいて、上部に設けられた鍔部と、該鍔部の下方に設けられた第１嵌合部と、この第１嵌合部よりもさらに下方に設けられた第２嵌合部とを有し、第１嵌合部はポートの第１嵌合孔と嵌合し、第２嵌合部はポートの第２嵌合孔と嵌合することに特徴を有するので、第１嵌合部及び第２嵌合部の２重の嵌合によって油漏れや気温の上昇によるポートプラグの外れを防止することができる。   According to a first aspect of the present invention, there is provided a port plug for closing a port having a first fitting hole opened in the port surface and a second fitting hole provided inside the first fitting hole. A first fitting portion, a first fitting portion provided below the flange portion, and a second fitting portion provided further below the first fitting portion. Since the joint portion is fitted with the first fitting hole of the port, and the second fitting portion is fitted with the second fitting hole of the port, the first fitting portion and the second fitting portion By the double fitting, it is possible to prevent the port plug from coming off due to oil leakage or an increase in temperature.

請求項２の発明は、請求項１の発明において、第２嵌合孔の最上部に第２嵌合部の先端部が接触した状態で、第１嵌合孔の最上部に第１嵌合部の先端部が接触した状態となることに特徴を有するので、ポートへのポートプラグの装着時に余分な力を必要とせず、作業者が容易に装着作業を行うことができる。   According to a second aspect of the present invention, in the first aspect of the invention, the first fitting is performed on the uppermost portion of the first fitting hole in a state in which the tip of the second fitting portion is in contact with the uppermost portion of the second fitting hole. Since the tip of the part is in a contact state, an extra force is not required when the port plug is attached to the port, and the operator can easily perform the attachment work.

請求項３の発明は、請求項１又は２の発明において、鍔部は、該鍔部の外周に向かうにしたがってポート側へ傾斜するように形成したことに特徴を有するので、鍔部がポート面に吸着することによってポート面への吸着力を高めることができる。     The invention of claim 3 is characterized in that, in the invention of claim 1 or 2, the flange portion is formed so as to be inclined toward the port side toward the outer periphery of the flange portion. By adsorbing to the surface, it is possible to increase the adsorption force to the port surface.

次に、本発明の実施形態を図面に基づいて説明する。図１は本発明に係るポートプラグの第１の実施形態を示す部分断面図である。この図に示すように、ポートプラグ５は最上部に形成された円筒状の鍔部６と、この鍔部６の下方に形成され、鍔部６よりも径の小さい円筒状の第１嵌合部７と、この第１嵌合部７の下方に形成され、第１嵌合部７よりも径の小さい円筒状の中間部８と、この中間部８の更に下方に形成された第２嵌合部９とが一体的に成形されたものであり、ゴム等の弾性を有する材料からなるものである。   Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a partial sectional view showing a first embodiment of a port plug according to the present invention. As shown in this figure, the port plug 5 has a cylindrical flange portion 6 formed at the uppermost portion, and a cylindrical first fitting formed below the flange portion 6 and having a smaller diameter than the flange portion 6. Part 7, a cylindrical intermediate part 8 having a diameter smaller than that of first fitting part 7, and a second fitting formed further below this intermediate part 8. The joint portion 9 is integrally formed and is made of an elastic material such as rubber.

そして、ポートプラグ５の第１嵌合部７はポート１の第１嵌合孔３と嵌合し、第２嵌合部９はポート１の第２嵌合孔４と嵌合している。ここで、ポートプラグ５の中間部８はポート１の第１嵌合孔３とは嵌合せずに第１嵌合孔３との間に空間１０を形成している。   The first fitting portion 7 of the port plug 5 is fitted with the first fitting hole 3 of the port 1, and the second fitting portion 9 is fitted with the second fitting hole 4 of the port 1. Here, the intermediate portion 8 of the port plug 5 does not fit with the first fitting hole 3 of the port 1, and forms a space 10 between the first fitting hole 3.

図２はポートプラグの装着途中の状態を示す部分断面図である。この図に示すように、第２嵌合部９の先端がポート１の第１嵌合孔３を通過し、第２嵌合孔４の最上部に接触した状態の時に、第１嵌合部７の先端が第１嵌合孔３の最上部に接触した状態となるようにしている。   FIG. 2 is a partial cross-sectional view showing a state where the port plug is being attached. As shown in this figure, when the tip of the second fitting portion 9 passes through the first fitting hole 3 of the port 1 and is in contact with the uppermost portion of the second fitting hole 4, the first fitting portion The tip of 7 is in contact with the top of the first fitting hole 3.

上記構成とすることによって、図２の状態となるまではポートプラグ５をポート１に差し込む作業者が余計な力を必要とせずに容易に挿入することができ、その後は鍔部６を指で強く押すことによって、図１で示したように第２嵌合部９を第２嵌合孔４に嵌合させると同時に、第１嵌合部７を第１嵌合孔３に嵌合させて、ポート１を確実にシールすることができるのである。   With the above configuration, the operator who inserts the port plug 5 into the port 1 can easily insert it without requiring extra force until the state shown in FIG. By pressing firmly, the second fitting portion 9 is fitted into the second fitting hole 4 as shown in FIG. 1, and at the same time, the first fitting portion 7 is fitted into the first fitting hole 3. The port 1 can be reliably sealed.

即ち、第２嵌合孔４よりも更に奥の部分１１に残留している潤滑油があった場合でも第２嵌合部９でシールすることができ、空間１０に残留している潤滑油があった場合でも第１嵌合部７でシールすることができるのであり、更にポート面２に鍔部６が密着することによって潤滑油が外部ににじみ出るのを防ぐことができるのである。   That is, even when there is lubricating oil remaining in the portion 11 deeper than the second fitting hole 4, it can be sealed by the second fitting portion 9, and the lubricating oil remaining in the space 10 is removed. Even if it exists, it can seal with the 1st fitting part 7, and when the collar part 6 closely_contact | adheres to the port surface 2, it can prevent that lubricating oil oozes out outside.

図３は本発明に係るポートプラグの第２の実施形態を示す部分断面図である。この図に示すように、ポートプラグ５ｃの最上部に形成された円筒状の鍔部６ａを外周に向うに従ってポート１側へ傾斜させている。   FIG. 3 is a partial sectional view showing a second embodiment of the port plug according to the present invention. As shown in this figure, a cylindrical flange 6a formed at the uppermost part of the port plug 5c is inclined toward the port 1 side toward the outer periphery.

上記構成とすることによって、鍔部６ａはその吸盤作用によってポート面２に対して吸着力を加えることができ、油圧機器内の残油がポート１内からにじみ出たり、外部からポート１内に異物が侵入したり、塗装時の塗料が侵入するのをより一層防止することができるのである。   By adopting the above-described configuration, the flange portion 6a can apply an adsorption force to the port surface 2 by its suction cup action, and residual oil in the hydraulic device oozes out from the port 1 or foreign matter enters the port 1 from the outside. It is possible to further prevent the intrusion of the paint or the paint at the time of painting.

尚、本発明の趣旨を逸脱しない範囲において、種々の実施形態をとることができることは言うまでもない。例えば、上記実施形態のポートプラグ５，５ｃは内側をくりぬいた円筒状のものを使用している。これにより、ポートプラグ５，５ｃのポート１との接触面が一時的に変形されることからポートプラグ５，５ｃの着脱作業を容易にすることができるものであるが、これに限定されるものではなく、ゴム等の弾性を有する素材であれば内側をくりぬかないで円柱状のポートプラグとしてもよいものである。   In addition, it cannot be overemphasized that various embodiment can be taken in the range which does not deviate from the meaning of this invention. For example, the port plugs 5 and 5c in the above embodiment are cylindrical ones that are hollowed out inside. As a result, the contact surfaces of the port plugs 5 and 5c with the port 1 are temporarily deformed, so that the port plugs 5 and 5c can be easily attached and detached. However, the present invention is not limited to this. Instead, a material having elasticity such as rubber may be used as a cylindrical port plug without hollowing out the inside.

また、本発明に係るポートプラグは製品の出荷時に一時的に使用するものであるため、鍔部６の一部から突出するつまみ部を形成する構成としてもよい。これにより、つまみ部を指でつまんでポートからポートプラグを容易に取り外すことができ、より一層作業性を向上させることができる。   Further, since the port plug according to the present invention is temporarily used at the time of shipment of the product, it may be configured to form a knob portion that protrudes from a part of the flange portion 6. As a result, it is possible to easily remove the port plug from the port by pinching the knob portion with a finger, and the workability can be further improved.

本発明の第１の実施形態を示す断面図である。It is sectional drawing which shows the 1st Embodiment of this invention. 本発明の第１の実施形態を示す断面図である。It is sectional drawing which shows the 1st Embodiment of this invention. 本発明の第２の実施形態を示す断面図である。It is sectional drawing which shows the 2nd Embodiment of this invention. 従来のポートを示す断面図である。It is sectional drawing which shows the conventional port. 従来のポートプラグを示す断面図である。It is sectional drawing which shows the conventional port plug.

符号の説明Explanation of symbols

１ ポート
２ ポート面
３ 第１嵌合孔
３ａ，４ａ 周壁
４ 第２嵌合孔
５，５ａ，５ｂ，５ｃ ポートプラグ
６，６ａ 鍔部
７ 第１嵌合部
８ 中間部
９ 第２嵌合部 DESCRIPTION OF SYMBOLS 1 Port 2 Port surface 3 1st fitting hole 3a, 4a Perimeter wall 4 2nd fitting hole 5, 5a, 5b, 5c Port plug 6, 6a collar part 7 1st fitting part 8 Middle part 9 2nd fitting part

Claims (3)

ポート面に開口した第１嵌合孔と、該第１嵌合孔よりも内部に設けられた第２嵌合孔とを有するポートを閉塞するポートプラグにおいて、上部に設けられた鍔部と、該鍔部の下方に設けられた第１嵌合部と、該第１嵌合部よりもさらに下方に設けられた第２嵌合部とを有し、前記第１嵌合部は前記ポートの第１嵌合孔と嵌合し、前記第２嵌合部は前記ポートの第２嵌合孔と嵌合することを特徴とするポートプラグ。   In the port plug that closes the port having the first fitting hole opened in the port surface and the second fitting hole provided inside the first fitting hole, the flange portion provided at the upper part, A first fitting portion provided below the flange portion, and a second fitting portion provided further below the first fitting portion, wherein the first fitting portion is connected to the port. A port plug, which is fitted with a first fitting hole, and wherein the second fitting portion is fitted with a second fitting hole of the port. 第２嵌合孔の最上部に第２嵌合部の先端部が接触した状態で、第１嵌合孔の最上部に第１嵌合部の先端部が接触した状態となることを特徴とする請求項１に記載のポートプラグ。   The tip of the second fitting portion is in contact with the top of the second fitting hole, and the tip of the first fitting is in contact with the top of the first fitting hole. The port plug according to claim 1. 鍔部は該鍔部の外周に向かうにしたがってポート側へ傾斜するように形成したことを特徴とする請求項１又は２に記載のポートプラグ。




The port plug according to claim 1, wherein the flange portion is formed so as to be inclined toward the port side toward the outer periphery of the flange portion.




JP2003354951A 2003-10-15 2003-10-15 Port plug Expired - Fee Related JP4415214B2 (en)

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Application Number Priority Date Filing Date Title
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Publication Number Publication Date
JP2005121082A true JP2005121082A (en) 2005-05-12
JP4415214B2 JP4415214B2 (en) 2010-02-17

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013181450A (en) * 2012-03-01 2013-09-12 Calsonic Kansei Corp Seal structure of compressor
CN111336159A (en) * 2018-12-19 2020-06-26 株式会社斗山 Plug for fluid occlusion

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52170160U (en) * 1976-06-18 1977-12-23
JPS6333005U (en) * 1986-08-20 1988-03-03
JPH0333265U (en) * 1989-08-11 1991-04-02
JPH0482401U (en) * 1990-11-28 1992-07-17
JPH0744810U (en) * 1995-03-27 1995-11-28 セイコー精機株式会社 Compressor with lid for sealing
JPH08277976A (en) * 1995-02-08 1996-10-22 Nippondenso Co Ltd Joint device for piping

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52170160U (en) * 1976-06-18 1977-12-23
JPS6333005U (en) * 1986-08-20 1988-03-03
JPH0333265U (en) * 1989-08-11 1991-04-02
JPH0482401U (en) * 1990-11-28 1992-07-17
JPH08277976A (en) * 1995-02-08 1996-10-22 Nippondenso Co Ltd Joint device for piping
JPH0744810U (en) * 1995-03-27 1995-11-28 セイコー精機株式会社 Compressor with lid for sealing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013181450A (en) * 2012-03-01 2013-09-12 Calsonic Kansei Corp Seal structure of compressor
CN111336159A (en) * 2018-12-19 2020-06-26 株式会社斗山 Plug for fluid occlusion
CN111336159B (en) * 2018-12-19 2022-10-21 股份公司摩拓乐 Plug for blocking fluid

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Publication number Publication date
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