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JP2006036312A - Cap for fuel tank - Google Patents

Cap for fuel tank Download PDF

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Publication number
JP2006036312A
JP2006036312A JP2004221619A JP2004221619A JP2006036312A JP 2006036312 A JP2006036312 A JP 2006036312A JP 2004221619 A JP2004221619 A JP 2004221619A JP 2004221619 A JP2004221619 A JP 2004221619A JP 2006036312 A JP2006036312 A JP 2006036312A
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JP
Japan
Prior art keywords
container
cap
fuel tank
valve
air hole
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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.)
Pending
Application number
JP2004221619A
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Japanese (ja)
Inventor
Kiyoshi Miyauchi
清志 宮内
Yumiko Ito
有美子 伊藤
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.)
Nippon Vinylon Co Ltd
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Nippon Vinylon Co Ltd
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.)
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Publication date
Application filed by Nippon Vinylon Co Ltd filed Critical Nippon Vinylon Co Ltd
Priority to JP2004221619A priority Critical patent/JP2006036312A/en
Publication of JP2006036312A publication Critical patent/JP2006036312A/en
Pending legal-status Critical Current

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  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Closures For Containers (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cap for a fuel tank, which prevents leakage of fuel even if a container or the fuel tank is overturned. <P>SOLUTION: The cap 1 for the fuel tank is for use in closing an aperture of the fuel feeding container. According to the structure of the cap, a valve mechanism is arranged across a vent hole for communicating between the inside and outside of the container 11, and when the container 11 is tilted through predetermined degrees or more, valves 4, 5 in the valve mechanism is pressed in a cap closing direction by a free sphere 6 arranged immediately below the valves, to thereby block part of the channel of the air hole. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、例えば、自動車用の各種オイルタンク、冷却液用タンク、洗浄液用タンク、その他の液体供給用タンクである容器の開口部に閉蓋されるキャップに関する。   The present invention relates to a cap that is closed at an opening of a container that is, for example, various oil tanks for automobiles, a tank for cooling liquid, a tank for cleaning liquid, and other liquid supply tanks.

従来、例えば、各種液体供給用の容器(タンク)におけるキャップには、当該密閉状態の容器内のオイル、ガソリン若しくは洗浄液等の燃料が、下部の供給口(吐出口)から消費されるに従って、その消費された体積分だけ外部から空気を容器内へ導入する必要があるので、空気導入孔が設けられている。例えば、キャップの側壁部に容器の外部と内部とを連通させる空気孔の一端開口部を設けたものが知られている(特許文献1参照)。
特開2002−68262号公報
Conventionally, for example, in a cap in a container (tank) for supplying various liquids, as fuel such as oil, gasoline or cleaning liquid in the sealed container is consumed from a lower supply port (discharge port), Since it is necessary to introduce air into the container from the outside by the consumed volume, an air introduction hole is provided. For example, there is known a device in which one end opening of an air hole is provided on the side wall of the cap so that the outside and the inside of the container communicate with each other (see Patent Document 1).
JP 2002-68262 A

しかし、従来の燃料タンク用キャップでは、雨等の水滴やゴミが空気導入孔から容器内に入り込むことが困難となって塵などによる詰まりを防止することは達成されたが、一方で、移動時やメンテナンス時において、取外した容器を横倒しすると空気孔を通して容器内の燃料が漏れてしまうという課題がある。本発明に係る燃料タンク用キャップは、このような課題を解消するために提案されたものである。   However, with conventional fuel tank caps, it was difficult for water droplets and dust such as rain to enter the container through the air introduction hole, and it was possible to prevent clogging due to dust, etc. During maintenance, when the removed container is laid down, there is a problem that the fuel in the container leaks through the air holes. The fuel tank cap according to the present invention has been proposed to solve such problems.

本発明に係る燃料タンク用キャップの上記課題を解決して目的を達成するための要旨は、液体供給用の容器における開口部を閉蓋するためのキャップであって、該容器の外部と内部とを連通させる空気孔の途中に弁機構部が設けられ、該弁機構部における弁は、前記容器が所定以上に傾斜されると、該弁の直下に配設された自由球体によって閉蓋方向に押圧されて、前記空気孔の一部流路を塞ぐことである。   The gist for solving the above-described problems of the fuel tank cap according to the present invention is to provide a cap for closing an opening in a liquid supply container, the outer and inner sides of the container. A valve mechanism portion is provided in the middle of the air hole communicating with the valve, and the valve in the valve mechanism portion is moved in the closing direction by a free sphere disposed immediately below the valve when the container is inclined more than a predetermined amount. It is pressed to block a part of the air hole.

また、前記弁機構部における自由球体は、底部が円錐状のカバーによって内包され支持されていることを含むものである。   The free sphere in the valve mechanism includes that the bottom is enclosed and supported by a conical cover.

本発明の燃料タンク用キャップによれば、容器を横倒しにしても、自由球体に押圧された弁が、キャップに形成されている空気孔の一部流路を塞ぐので、燃料の漏れがない。前記自由球体が、容器が横倒しになった際に前記弁を押圧する機構としては、この自由球体を内包して支持するカバーの底部が円錐状に形成されているからである。   According to the fuel tank cap of the present invention, even when the container is laid down, the valve pressed by the free sphere blocks the partial flow path of the air hole formed in the cap, so there is no fuel leakage. This is because the free sphere has a conical bottom that covers and supports the free sphere as a mechanism for pressing the valve when the container lies sideways.

即ち、自由球体が、円錐面に沿って重力により斜めに自由落下して且つ閉蓋方向に移動することで、この自由球体の一部に点接触する弁が、閉蓋方向に強制的に移動されることになるからである。   That is, the free sphere freely falls obliquely by gravity along the conical surface and moves in the closing direction, so that the valve that makes point contact with a part of the free sphere is forcibly moved in the closing direction. Because it will be done.

本発明に係る燃料タンク用キャップ1は、図1乃至図2に示すように、手回し用に凹凸が外周部に設けられている合成樹脂製のハンドル2と、該ハンダル2の内側に収納され容器11の口の蓋をするプレート3と、該プレート3の空気孔を塞ぐゴム製のバルブ4と、このバルブ4を先端部に保持してバルブ4の開閉作用を支持する合成樹脂製のガイド5と、該ガイド5の直下に配設される金属製の自由球体6と、該自由球体6を内包して支持する合成樹脂製のカバー7と、容器11の口の水密性を保つゴム製のパッキン8と、蓋9とから構成されている。   As shown in FIGS. 1 to 2, a fuel tank cap 1 according to the present invention has a handle 2 made of synthetic resin having irregularities provided on the outer periphery for manual rotation, and a container housed inside the handal 2 11, a plate 3 that covers the mouth of the mouth, a rubber valve 4 that closes the air hole of the plate 3, and a guide 5 made of synthetic resin that supports the opening and closing action of the valve 4 by holding the valve 4 at the tip. A metal free sphere 6 disposed immediately below the guide 5, a synthetic resin cover 7 that encloses and supports the free sphere 6, and a rubber made to maintain the water tightness of the mouth of the container 11. It is composed of a packing 8 and a lid 9.

前記ハンドル2には、外部と連通させる空気孔2aが形成されている。前記プレート3の中央部には、筒部3aが形成され、その上部には天板が設けられ中心に空気孔3bが形成されている。この筒部3aに、前記バルブ4及びガイド5が弁機構として内包されている。図1において、前記バルブ4及びガイド5は、上下方向に移動自在にして内包されている。更に、プレート3の下面には、前記筒部3aより大きな直径で所用高さの円筒部3cが形成されている。   The handle 2 is formed with an air hole 2a communicating with the outside. A cylindrical portion 3a is formed at the center of the plate 3, a top plate is provided at the upper portion, and an air hole 3b is formed at the center. The tubular portion 3a includes the valve 4 and the guide 5 as a valve mechanism. In FIG. 1, the valve 4 and the guide 5 are included so as to be movable in the vertical direction. Further, a cylindrical portion 3c having a diameter larger than the cylindrical portion 3a and a desired height is formed on the lower surface of the plate 3.

前記円筒部3cには、前記カバー7の上部が内側に差し込まれて嵌合し、係合片7aが前記円筒部3cに設けられた係合孔に係止して保持される。前記ガイド5のフランジ5aは、前記カバー7の内径よりも若干小さい寸法の外径になっている。   The upper portion of the cover 7 is inserted and fitted into the cylindrical portion 3c, and the engagement piece 7a is held in an engagement hole provided in the cylindrical portion 3c. The flange 5 a of the guide 5 has an outer diameter slightly smaller than the inner diameter of the cover 7.

前記ガイド5の下部は、円弧状の一部球面体になっている。なお、この形状に限定することなく、平板体であってもよい。前記自由球体6は、前記カバー7に内包されて、図1に示す通常の鉛直状態で、バルブ4が空気孔3bを塞がない状態になるような直径である。また、図3に示すように、容器11が鉛直状態から斜めにある角度以上に傾いた状態では、前記バルブ4が前記空気孔3bを完全に塞ぐような大きさの直径に設定される。   The lower part of the guide 5 is an arc-shaped partial spherical body. In addition, a flat plate body may be used without being limited to this shape. The free sphere 6 is included in the cover 7 and has a diameter such that the valve 4 does not block the air hole 3b in the normal vertical state shown in FIG. Further, as shown in FIG. 3, when the container 11 is inclined at an angle more than a certain angle from the vertical state, the diameter of the valve 4 is set so as to completely block the air hole 3b.

前記カバー7の底部7bは、円錐状に形成されている。これにより、前記自由球体6は容器11が、鉛直状態からどの方向に傾いても、それに応じて円錐部分の壁に沿って落下すると共に、閉蓋方向に移動することになる。かかる閉蓋方向とは、バルブ4及びガイド5が空気孔3bに接近する方向である(図1における図中の矢印a)。前記底部7bの最下端位置に空気孔7cが設けられている。   The bottom 7b of the cover 7 is formed in a conical shape. As a result, the free sphere 6 will drop along the wall of the conical portion and move in the closing direction, regardless of which direction the container 11 is tilted from the vertical state. The closing direction is a direction in which the valve 4 and the guide 5 approach the air hole 3b (arrow a in the drawing in FIG. 1). An air hole 7c is provided at the lowermost position of the bottom 7b.

このように形成される燃料タンク用キャップ1では、図3(A)に示すように、外気の流入は、ハンドル2の空気孔2aから、該ハンドル2の内壁面と筒部3aの外周面との間から、空気孔3bを通り、筒部3aの内周壁面とバルブ4及びガイド5の外周との間から、カバー7の内部から空気孔7cへと通り、容器11の内部に至るものである。   In the fuel tank cap 1 formed as described above, as shown in FIG. 3A, the outside air flows from the air hole 2a of the handle 2 to the inner wall surface of the handle 2 and the outer peripheral surface of the cylindrical portion 3a. Through the air hole 3b, from between the inner peripheral wall surface of the cylindrical portion 3a and the outer periphery of the valve 4 and the guide 5, from the inside of the cover 7 to the air hole 7c, and to the inside of the container 11. is there.

このような空気孔により、エンジン等の作動時には、外気が取り込まれて燃料10の供給が順調に行われる。また、燃料10の揮発によりガスによる内圧が上昇しても、そのガスが外部へ逃げることができ、更に、燃料10の吹き上げでも容易に外に漏れ出さないようになっている。   Due to such air holes, when the engine or the like is operated, outside air is taken in and fuel 10 is smoothly supplied. Further, even if the internal pressure due to the gas increases due to the volatilization of the fuel 10, the gas can escape to the outside, and further, even if the fuel 10 is blown up, it does not easily leak out.

次に、この燃料タンク用キャップ1により、図3(B)に示すように、容器11が鉛直状態から斜めに傾くと、燃料10がカバー7の空気孔7cから内部に浸入するが、自由球体6が円錐状の底部7bを転動し、上下方向において自然落下すると共に、閉蓋方向aに移動する。そして、閉蓋方向においては、前記自由球体6のある一点に点接触するガイド5が同方向に移動され、同時にバルブ4も閉蓋方向aに移動し、その先端部が空気孔3bに入り込み、この空気孔3bを閉蓋する。   Next, as shown in FIG. 3 (B), when the container 11 is tilted obliquely from the vertical state by the fuel tank cap 1, the fuel 10 enters the inside from the air hole 7 c of the cover 7. 6 rolls on the conical bottom portion 7b, naturally falls in the vertical direction, and moves in the closing direction a. Then, in the closing direction, the guide 5 that makes point contact with a certain point of the free sphere 6 is moved in the same direction, and at the same time, the valve 4 is also moved in the closing direction a, and the tip thereof enters the air hole 3b. The air hole 3b is closed.

この一実施例では、図4に示すように、鉛直方向に対してその周囲に略60°(片側30°)の範囲では、空気孔3bが開いており、それ以上の角度に傾くと、バルブ4により空気孔3bが閉蓋されて、バルブ閉の状態となる。こうして、燃料タンク用キャップ1により、容器11が横倒しにされても、燃料10が外に漏れ出すことが無くなるものである。また、プレート3とカバー7とが、係止片7aと係合孔とによる嵌合で組立てられる。よって、特に接着剤などを使用することなく弁機構が形成される。この燃料タンク用キャップ1を容易に組立てることができる。更に、構成備品の部品点数も少なく、簡易な構成でコスト低減となる。   In this embodiment, as shown in FIG. 4, the air hole 3b is open in the range of approximately 60 ° (one side 30 °) around the vertical direction, and if the air hole 3b is inclined at an angle larger than that, the valve 4, the air hole 3b is closed, and the valve is closed. Thus, even if the container 11 is laid down by the fuel tank cap 1, the fuel 10 does not leak out. The plate 3 and the cover 7 are assembled by fitting with the locking piece 7a and the engagement hole. Therefore, the valve mechanism is formed without using an adhesive or the like. The fuel tank cap 1 can be easily assembled. Furthermore, the number of components of the component equipment is small, and the cost is reduced with a simple configuration.

本発明に係る燃料タンク用キャップ1の一部断面図である。1 is a partial cross-sectional view of a fuel tank cap 1 according to the present invention. 同本発明の燃料タンク用キャップ1の分解斜視図である。It is a disassembled perspective view of the fuel tank cap 1 of the same invention. 同本発明に係る燃料タンク用キャップ1の使用状態を示す説明図(A),(B),(C)である。It is explanatory drawing (A), (B), (C) which shows the use condition of the cap 1 for fuel tanks based on the same invention. 同本発明に係る燃料タンク用キャップ1の、容器の傾きにおける閉蓋作用の範囲を示す説明図である。It is explanatory drawing which shows the range of the lid closing effect | action in the inclination of a container of the fuel tank cap 1 which concerns on the same invention.

符号の説明Explanation of symbols

1 燃料タンク用キャップ、
2 ハンドル、 2a 空気孔、
3 プレート、 3a 筒部、
3b 空気孔、 3c 円筒部、
4 バルブ、
5 ガイド、 5a フランジ、
6 自由球体、
7 カバー、 7a 係合片、
7b 底部、 7c 空気孔、
8 パッキン、
9 蓋、
10 燃料、
11 容器。
1 Fuel tank cap,
2 handle, 2a air hole,
3 plate, 3a tube,
3b air hole, 3c cylindrical part,
4 valves,
5 guide, 5a flange,
6 free spheres,
7 Cover, 7a Engagement piece,
7b bottom, 7c air holes,
8 Packing,
9 Lid,
10 Fuel,
11 Container.

Claims (2)

液体供給用の容器における開口部を閉蓋するためのキャップであって、該容器の外部と内部とを連通させる空気孔の途中に弁機構部が設けられ、
該弁機構部における弁は、前記容器が所定以上に傾斜されると、該弁の直下に配設された自由球体によって閉蓋方向に押圧されて、前記空気孔の一部流路を塞ぐこと、
を特徴とする燃料タンク用キャップ。
A cap for closing an opening in a liquid supply container, wherein a valve mechanism is provided in the middle of an air hole that communicates the outside and the inside of the container,
When the container is tilted more than a predetermined value, the valve in the valve mechanism portion is pressed in the closing direction by a free sphere disposed immediately below the valve to block a part of the flow path of the air hole. ,
A fuel tank cap.
弁機構部における自由球体は、底部が円錐状のカバーによって内包され支持されていること、
を特徴とする請求項1に記載の燃料タンク用キャップ。
The free sphere in the valve mechanism part is supported by being enclosed by a conical cover at the bottom,
The fuel tank cap according to claim 1.
JP2004221619A 2004-07-29 2004-07-29 Cap for fuel tank Pending JP2006036312A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004221619A JP2006036312A (en) 2004-07-29 2004-07-29 Cap for fuel tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004221619A JP2006036312A (en) 2004-07-29 2004-07-29 Cap for fuel tank

Publications (1)

Publication Number Publication Date
JP2006036312A true JP2006036312A (en) 2006-02-09

Family

ID=35901726

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004221619A Pending JP2006036312A (en) 2004-07-29 2004-07-29 Cap for fuel tank

Country Status (1)

Country Link
JP (1) JP2006036312A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007094377A1 (en) 2006-02-14 2007-08-23 Matsushita Electric Industrial Co., Ltd. Earphone connection cable and mobile device having the earphone connection cable
JP2011246191A (en) * 2010-05-31 2011-12-08 Sukeetaa Kk Beverage container
KR101468331B1 (en) * 2012-10-23 2014-12-03 서어모스 케이.케이. Liquid container for pouring out liquid by pressure
CN106089519A (en) * 2016-07-29 2016-11-09 温岭正峰动力有限公司 A kind of fuel tank cap
CN106949247A (en) * 2017-03-14 2017-07-14 余翊旻 A kind of breather valve of anti-canting oil leak for fuel tank
KR20180105415A (en) * 2017-03-15 2018-09-28 (주)제이월드텍 Backflow prevention cap
CN113830455A (en) * 2021-09-07 2021-12-24 程乐增 Anti-leakage oil tank

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007094377A1 (en) 2006-02-14 2007-08-23 Matsushita Electric Industrial Co., Ltd. Earphone connection cable and mobile device having the earphone connection cable
JP2011246191A (en) * 2010-05-31 2011-12-08 Sukeetaa Kk Beverage container
KR101468331B1 (en) * 2012-10-23 2014-12-03 서어모스 케이.케이. Liquid container for pouring out liquid by pressure
CN106089519A (en) * 2016-07-29 2016-11-09 温岭正峰动力有限公司 A kind of fuel tank cap
CN106089519B (en) * 2016-07-29 2018-12-18 温岭正峰动力有限公司 A kind of fuel tank cap
CN106949247A (en) * 2017-03-14 2017-07-14 余翊旻 A kind of breather valve of anti-canting oil leak for fuel tank
CN106949247B (en) * 2017-03-14 2017-11-17 余翊旻 A kind of breather valve of anti-canting oil leak for fuel tank
KR20180105415A (en) * 2017-03-15 2018-09-28 (주)제이월드텍 Backflow prevention cap
KR101951657B1 (en) * 2017-03-15 2019-02-25 (주)제이월드텍 Backflow prevention cap
CN113830455A (en) * 2021-09-07 2021-12-24 程乐增 Anti-leakage oil tank

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