JP2016037873A - Opening and closing valve - Google Patents

Opening and closing valve Download PDF

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Publication number
JP2016037873A
JP2016037873A JP2014160197A JP2014160197A JP2016037873A JP 2016037873 A JP2016037873 A JP 2016037873A JP 2014160197 A JP2014160197 A JP 2014160197A JP 2014160197 A JP2014160197 A JP 2014160197A JP 2016037873 A JP2016037873 A JP 2016037873A
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valve
coil spring
opening
shaft
gas passage
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JP2014160197A
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正道 清水
Masamichi Shimizu
正道 清水
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Marelli Corp
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Calsonic Kansei Corp
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Abstract

PROBLEM TO BE SOLVED: To provide an opening and closing valve capable of controlling an opening of a valve without depending on coil spring characteristics.SOLUTION: An opening and closing valve 1 opens and closes a gas passage provided in a muffler 3 to be in a closed state and an opened state in accordance with an exhaust pressure. The opening and closing valve 1 includes supporting parts 9 and 10 installed in the muffler 3, a valve 4 attached to the supporting parts 9 and 10 so as to be swung and opening and closing the gas passage, and a coil spring 5 for energizing the valve 4 to a direction closing the gas passage. An energizing part 6 of the coil spring 5 is moved to a position near the side of a shaft 8A when the valve 4 is opened.SELECTED DRAWING: Figure 1

Description

本発明は、排気圧力に応じて開閉する開閉バルブに関する。   The present invention relates to an open / close valve that opens and closes according to exhaust pressure.

従来、車両用マフラーのマフラパイプに揺動可能に取り付けられ、排気圧力に応じてマフラパイプを開閉する開閉バルブを備えた圧力開閉バルブ装置が提案されている（例えば、特許文献１参照）。   2. Description of the Related Art Conventionally, there has been proposed a pressure on-off valve device including an on-off valve that is swingably attached to a muffler pipe of a vehicle muffler and opens and closes the muffler pipe according to exhaust pressure (see, for example, Patent Document 1).

また、図５に示すような圧力開閉バルブ装置Ａでは、バルブ弁ＣとコイルばねＤを、一本のシャフトＢに挿入させることで、バルブ弁Ｃ、コイルばねＤを組み付けている。この際、バルブ弁Ｃの回転軸（シャフトＢ）とコイルばねＤの保持のための軸（シャフトＢ）とが直線の円柱状であり、同軸となっている。   Further, in the pressure opening / closing valve device A as shown in FIG. 5, the valve valve C and the coil spring D are assembled by inserting the valve valve C and the coil spring D into one shaft B. At this time, the rotating shaft (shaft B) of the valve valve C and the shaft (shaft B) for holding the coil spring D are linear cylinders and are coaxial.

特開２００１−６５３４２号公報JP 2001-65342 A

特許文献１に記載の圧力開閉バルブ装置では、コイルばねの力学上の３点（支点、力点、作用点）が開度によらず常に一定の位置関係を保つことに起因する問題があった（例えば、チャタリングを起こす等）。   In the pressure open / close valve device described in Patent Document 1, there is a problem caused by the fact that the three dynamic points (fulcrum, force point, and action point) of the coil spring always maintain a constant positional relationship regardless of the opening degree ( For example, chattering.

そこで、本発明は、ばね特性に頼ることなくバルブ弁のバルブ開度をコントロールできる開閉バルブを提供することを目的とする。   Accordingly, an object of the present invention is to provide an on-off valve that can control the valve opening of the valve valve without depending on the spring characteristics.

上述した課題を解決するため、本発明は、次のような特徴を有している。請求項１に係る発明は、マフラーに設けられたガス通路を、排気圧力に応じて閉じた状態と開いた状態に開閉する開閉バルブにおいて、前記マフラーに設置される支持部と、前記支持部に揺動可能に取り付けられ、前記ガス通路を開閉するバルブ弁と、前記バルブ弁を、前記ガス通路を閉じる方向に付勢するコイルばねと、を備えており、前記コイルばねは、前記バルブ弁が開いたときに前記コイルばねの付勢部が軸に近い位置に移動することを特徴とする。   In order to solve the above-described problems, the present invention has the following features. The invention according to claim 1 is an open / close valve that opens and closes a gas passage provided in the muffler in a closed state and an open state in accordance with an exhaust pressure, and a support portion installed in the muffler; and A valve valve that is swingably attached and opens and closes the gas passage; and a coil spring that urges the valve valve in a direction to close the gas passage. When opened, the biasing portion of the coil spring moves to a position close to the shaft.

請求項２に係る発明は、前記コイルばねの胴体は前記バルブ弁の軸に対し傾いた方向に設置され、前記バルブ弁が開いた場合に前記コイルばねの付勢部が軸に近い位置に移動することを特徴とする。   According to a second aspect of the present invention, the body of the coil spring is installed in a direction inclined with respect to the shaft of the valve valve, and when the valve valve is opened, the biasing portion of the coil spring moves to a position close to the shaft. It is characterized by doing.

請求項３に係る発明は、前記コイルばねの傾いた方向は直角方向であることを特徴とする。   The invention according to claim 3 is characterized in that the inclined direction of the coil spring is a perpendicular direction.

本発明の開閉バルブでは、力点が支点に近づくことによって、バルブ弁の開き始めの力を強く保ったまま、開いた後でコイルばねがバルブ弁を閉めようとするモーメントを低減する。機能としてギリギリまでバルブ弁を閉じた状態で耐える。バルブ弁を開く差圧に達したとき、一気に「パカッ」と開き通気口を確保できるという効果を奏する。これにより、例えば、チャタリング等の不具合を無くすことができる。   In the open / close valve of the present invention, the force point approaches the fulcrum, thereby reducing the moment at which the coil spring attempts to close the valve valve after opening while keeping the opening force of the valve valve strong. Withstands the valve valve closed as far as it can go. When the pressure difference that opens the valve valve is reached, it is possible to open the vent valve at once. Thereby, problems, such as chattering, can be eliminated, for example.

開閉バルブがマフラーに取り付けられた状態を示す平面図である。It is a top view which shows the state in which the on-off valve was attached to the muffler. バルブ弁が閉じた状態を説明する説明図である。It is explanatory drawing explaining the state which the valve valve closed. バルブ弁が開いた状態を説明する説明図である。It is explanatory drawing explaining the state which the valve valve opened. バルブ弁を示し、（Ａ）は斜視図、（Ｂ）は側面図、（Ｃ）は正面図である。A valve valve is shown, (A) is a perspective view, (B) is a side view, (C) is a front view. 従来の技術を説明する従来図である。It is a prior art explaining a prior art.

以下に、本発明に係る開閉バルブの一実施形態について、図面を参照しながら詳細に説明する。なお、各図の寸法比率などは現実のものとは異なるものとする。   Hereinafter, an embodiment of an on-off valve according to the present invention will be described in detail with reference to the drawings. It should be noted that the dimensional ratios in the drawings are different from the actual ones.

（開閉バルブの構成）
本発明に係る開閉バルブ１は、図１に示すように、マフラー２に設けられたバッフルプレート３に固定されている。バッフルプレート３には、マフラー２に設けられたガス通路と連通する開口が形成されている。 (Configuration of open / close valve)
The on-off valve 1 according to the present invention is fixed to a baffle plate 3 provided on a muffler 2 as shown in FIG. The baffle plate 3 has an opening communicating with a gas passage provided in the muffler 2.

前記開閉バルブ１は、マフラー２に固定される支持部９、１０と、支持部９、１０に揺動可能に取り付けられてガス通路を開閉するバルブ弁４と、バルブ弁４を、ガス通路を閉じる方向に付勢するコイルばね５とを備えている。   The opening / closing valve 1 includes support portions 9 and 10 fixed to the muffler 2, a valve valve 4 that is swingably attached to the support portions 9 and 10 to open and close the gas passage, and the valve valve 4. And a coil spring 5 biased in the closing direction.

支持部９、１０は、バッフルプレート３に接して固定される固定部１１、１３と、固定部１１に対して略垂直に起立するフランジ１２と、固定部１３に対して略垂直に起立するフランジ部１４とを有している。また、バルブ弁４にも起立するフランジ１５、１６が備えられている。   The support portions 9, 10 are fixed portions 11, 13 fixed in contact with the baffle plate 3, a flange 12 that stands substantially perpendicular to the fixed portion 11, and a flange that stands substantially perpendicular to the fixed portion 13. Part 14. Further, the valve valve 4 is also provided with flanges 15 and 16 that stand.

前記各フランジ１２、１４、１５、１６には、保持シャフト８を挿入する貫通孔１８、１９、２０、２１がそれぞれ備えられている。この保持シャフト８は、例えば円筒形状とされる。また、この保持シャフト８はＬ字型に形成されており、一方８Ａはバルブ弁４を揺動自在に保持し９０°に曲がった他方８Ｂはコイルばね５を保持している。   The flanges 12, 14, 15, 16 are provided with through holes 18, 19, 20, 21 for inserting the holding shaft 8, respectively. The holding shaft 8 has a cylindrical shape, for example. The holding shaft 8 is formed in an L shape. One of the holding shafts 8A holds the valve valve 4 in a swingable manner, and the other 8B bent at 90 ° holds the coil spring 5.

保持シャフト８と貫通孔２０、２１は溶接等で固定されている。   The holding shaft 8 and the through holes 20 and 21 are fixed by welding or the like.

図２、図３を参照する。図２はバルブ弁４が閉じた状態を説明する説明図である。図３はバルブ弁４が開いた状態を説明する説明図である。（バルブ弁４の角度ＡＮＧ。）
図２に示すように、軸（シャフト８Ａ）と付勢部６との距離ＤＩＳ１を保っているが、図３に示すように、バルブ弁４が開き力点が支点に近づくことによって（距離ＤＩＳ２は距離ＤＩＳ１より短くなる）、バルブ弁４の開き始めの力を強く保ったまま、開いた後でコイルばね５がバルブ弁４を閉めようとするモーメントを低減する。機能としてギリギリまでバルブ弁４を閉じた状態で耐える。バルブ弁４を開く差圧に達したとき、一気に「パカッ」と開き通気口を確保できるという効果を奏する。 Please refer to FIG. 2 and FIG. FIG. 2 is an explanatory diagram for explaining a state in which the valve valve 4 is closed. FIG. 3 is an explanatory view for explaining a state in which the valve valve 4 is opened. (Angle ANG of the valve valve 4)
As shown in FIG. 2, the distance DIS1 between the shaft (shaft 8A) and the urging portion 6 is maintained. As shown in FIG. 3, when the valve valve 4 opens, the force point approaches the fulcrum (distance DIS2 becomes The moment when the coil spring 5 tries to close the valve valve 4 after the valve valve 4 is opened is reduced while the force at which the valve valve 4 starts to open is kept strong. As a function, the valve valve 4 is closed until the end. When the pressure difference that opens the valve valve 4 is reached, the effect of being able to secure the “puff” and the opening vent at once is achieved.

図４（ａ）、（ｂ）、（ｃ）に示すようにバルブ弁４は、バッフルプレート３に形成された開口を塞ぐ弁部４Ａと、この弁部４Ａに連設して設けられるフランジ支持部１７と、このフランジ支持部１７から略垂直に起立する一対のフランジ１５、１６と、各フランジ１５、１６に形成される貫通孔１８、１９とを有している。   As shown in FIGS. 4A, 4B, and 4C, the valve valve 4 includes a valve portion 4A that closes an opening formed in the baffle plate 3, and a flange support that is provided continuously with the valve portion 4A. A portion 17, a pair of flanges 15, 16 erected substantially vertically from the flange support portion 17, and through holes 18, 19 formed in the flanges 15, 16.

弁部４Ａは、バッフルプレート３の開口よりも約一回り程度大きな円盤形状とされている。一対のフランジ１５、１６は、弁部４Ａと連設するフランジ支持部１７の両側から略垂直に起立するようにして設けられている。これらフランジ１５、１６は、バッフルプレート３とは反対側に形成されており、その中心部にシャフト８を挿通させる貫通孔１８、１９を有している。この貫通孔１８、１９は、例えばバーリング加工することで円形に形成される。   The valve portion 4 </ b> A has a disk shape that is about one turn larger than the opening of the baffle plate 3. The pair of flanges 15 and 16 are provided so as to stand substantially vertically from both sides of the flange support portion 17 connected to the valve portion 4A. These flanges 15 and 16 are formed on the opposite side to the baffle plate 3 and have through holes 18 and 19 through which the shaft 8 is inserted at the center thereof. The through holes 18 and 19 are formed in a circular shape by, for example, burring.

図１〜図３を参照する。コイルばね５は、線材を円筒状に巻いた胴体部分と、その胴体部分の一端から延びる第１係止部６と、胴体部分の他端から第１係止部６とは反対方向に延びる第２係止部７とを有している。   Please refer to FIG. The coil spring 5 includes a body portion in which a wire is wound in a cylindrical shape, a first locking portion 6 extending from one end of the body portion, and a first locking portion 6 extending in the opposite direction from the other end of the body portion. 2 locking portions 7.

このように構成された開閉バルブ１は、例えば車両のエンジンが低回転の時には、コイルばね５によってバルブ弁８がガス通路４を閉じた状態とされ、エンジンが高回転となり排圧が高まると、コイルばね５の抗力が排圧に負けてバルブ弁８が開く。   For example, when the engine of the vehicle is running at a low speed, the on-off valve 1 configured as described above is configured such that the valve valve 8 is closed by the coil spring 5 and the gas passage 4 is closed. The drag of the coil spring 5 loses the exhaust pressure, and the valve valve 8 opens.

（作用・効果）
本実施形態では、マフラー２に設けられたガス通路を、排気圧力に応じて閉じた状態と開いた状態に開閉する開閉バルブ１において、マフラー２に設置される支持部９、１０と、支持部９、１０に揺動可能に取り付けられ、ガス通路を開閉するバルブ弁４と、バルブ弁４を、ガス通路を閉じる方向に付勢するコイルばね５と、を備えており、コイルばね５は、バルブ弁４が開いたときにコイルばね５の付勢部６が軸８Ａに近い位置に移動する。 (Action / Effect)
In the present embodiment, in the open / close valve 1 that opens and closes a gas passage provided in the muffler 2 in a closed state and an open state according to the exhaust pressure, the support portions 9 and 10 installed in the muffler 2, and the support portion 9 and 10, and a valve valve 4 that swingably attaches and closes the gas passage, and a coil spring 5 that urges the valve valve 4 in the direction of closing the gas passage. When the valve valve 4 is opened, the biasing portion 6 of the coil spring 5 moves to a position close to the shaft 8A.

コイルばね５の胴体はバルブ弁４の軸８Ａに対し傾いた方向に設置され、バルブ弁４が開いた場合に前記コイルばね５の付勢部６が軸に近い位置に移動する。コイルばねの傾いた方向とは直角方向である。   The body of the coil spring 5 is installed in a direction inclined with respect to the shaft 8A of the valve valve 4. When the valve valve 4 is opened, the urging portion 6 of the coil spring 5 moves to a position close to the shaft. The direction in which the coil spring is inclined is a perpendicular direction.

上述により以下の具体的な効果を奏する。プリトルクを変えることなく、バネ特性に頼ることなくバルブ弁４の開度をコントロールできる。また、バルブ弁４の開時のバルブ閉力を低減できる。さらに、バルブ開時のコイルばね５の変形量を低減できる。そして、チャタリングを抑制し、異音を防止することができる。また、チャタリング対策用ＳＵＳメッシュを廃止することができる。   The following specific effects are obtained as described above. The opening degree of the valve valve 4 can be controlled without changing the pre-torque and without depending on the spring characteristics. Further, the valve closing force when the valve valve 4 is opened can be reduced. Furthermore, the amount of deformation of the coil spring 5 when the valve is opened can be reduced. And chattering can be suppressed and abnormal noise can be prevented. Further, the chattering countermeasure SUS mesh can be abolished.

なお本発明は、ここでは記載していない様々な実施の形態などを含むことは勿論である。したがって、本発明の技術的範囲は、上述の説明から妥当な特許請求の範囲に係る発明特定事項によってのみ定められる。   Needless to say, the present invention includes various embodiments not described herein. Therefore, the technical scope of the present invention is determined only by the invention specifying matters according to the scope of claims reasonable from the above description.

１ 開閉バルブ
２ マフラー
３ バッフルプレート
４ バルブ弁
５ コイルばね
８ シャフト
９ 支持部
１０支持部 DESCRIPTION OF SYMBOLS 1 Opening / closing valve 2 Muffler 3 Baffle plate 4 Valve valve 5 Coil spring 8 Shaft 9 Supporting part 10 Supporting part

Claims (3)

マフラーに設けられたガス通路を、排気圧力に応じて閉じた状態と開いた状態に開閉する開閉バルブにおいて、
前記マフラーに設置される支持部と、
前記支持部に揺動可能に取り付けられ、前記ガス通路を開閉するバルブ弁と、
前記バルブ弁を、前記ガス通路を閉じる方向に付勢するコイルばねと、を備えており、
前記コイルばねは、前記バルブ弁が開いたときに前記コイルばねの付勢部が軸に近い位置に移動することを特徴とする開閉バルブ。 In the opening and closing valve that opens and closes the gas passage provided in the muffler in a closed state and an open state according to the exhaust pressure,
A support portion installed in the muffler;
A valve valve which is swingably attached to the support portion and opens and closes the gas passage;
A coil spring that urges the valve valve in a direction to close the gas passage,
The coil spring is an on-off valve characterized in that the biasing portion of the coil spring moves to a position close to the shaft when the valve valve is opened. 前記コイルばねの胴体は前記バルブ弁の軸に対し傾いた方向に設置され、前記バルブ弁が開いた場合に前記コイルばねの付勢部が軸に近い位置に移動することを特徴とする請求項１記載の開閉バルブ。   The body of the coil spring is installed in a direction inclined with respect to the shaft of the valve valve, and when the valve valve is opened, the urging portion of the coil spring moves to a position close to the shaft. The opening / closing valve according to 1. 前記コイルばねの傾いた方向は直角方向であることを特徴とする請求項１または２に記載の開閉バルブ。
The on-off valve according to claim 1 or 2, wherein the direction in which the coil spring is inclined is a right-angle direction.
JP2014160197A 2014-08-06 2014-08-06 Opening and closing valve Pending JP2016037873A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10266837A (en) * 1997-03-26 1998-10-06 Calsonic Corp Valve built-in exhaust muffler for automobile
JP2000329019A (en) * 1999-03-15 2000-11-28 Toyoda Gosei Co Ltd Intake duct
JP2006002712A (en) * 2004-06-21 2006-01-05 Sango Co Ltd Muffler
JP2008175132A (en) * 2007-01-18 2008-07-31 Calsonic Kansei Corp Exhaust control valve
JP2010169059A (en) * 2009-01-26 2010-08-05 Toyota Motor Corp Exhaust system valve
JP2012036887A (en) * 2010-07-13 2012-02-23 Calsonic Kansei Corp Exhaust control valve

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10266837A (en) * 1997-03-26 1998-10-06 Calsonic Corp Valve built-in exhaust muffler for automobile
JP2000329019A (en) * 1999-03-15 2000-11-28 Toyoda Gosei Co Ltd Intake duct
JP2006002712A (en) * 2004-06-21 2006-01-05 Sango Co Ltd Muffler
JP2008175132A (en) * 2007-01-18 2008-07-31 Calsonic Kansei Corp Exhaust control valve
JP2010169059A (en) * 2009-01-26 2010-08-05 Toyota Motor Corp Exhaust system valve
JP2012036887A (en) * 2010-07-13 2012-02-23 Calsonic Kansei Corp Exhaust control valve

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