JP2017115409A - Guide structure of spring for valve - Google Patents

Guide structure of spring for valve Download PDF

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Publication number
JP2017115409A
JP2017115409A JP2015251384A JP2015251384A JP2017115409A JP 2017115409 A JP2017115409 A JP 2017115409A JP 2015251384 A JP2015251384 A JP 2015251384A JP 2015251384 A JP2015251384 A JP 2015251384A JP 2017115409 A JP2017115409 A JP 2017115409A
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spring
valve
guide
guide structure
tip
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JP6682722B2 (en
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木村 裕史
Yasushi Kimura
裕史 木村
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Maruichi Corp
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Maruichi Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a guide structure of a spring for a valve which is excellent in the stability of an opening/closing operation without damaging the spring even if the guide part is inclined.SOLUTION: A guide structure of a spring for a valve comprises a drain plug main body 1, a valve body 2, a valve shaft 3, and the spring 5, and a guide member 4 for preventing the displacement of the spring 5 to an energization direction is made to penetrate the spring 5 which is related to motions of a variety of kinds of valves of a drain plug device or the like having a constitution in which the spring 5 is energized upwardly, and which opens the valve body 2 by pushing up the valve shaft 3. A tip 6 of a guide part being a tip of the spring 5 at the guide member 4 at a contraction direction side is formed into a shape having a tapered inclination.SELECTED DRAWING: Figure 1

Description

本発明は、ポップアップ弁や逆流防止弁等の弁用スプリングのガイド構造に関する。   The present invention relates to a guide structure for a spring for a valve such as a pop-up valve or a backflow prevention valve.

従来より、排水栓装置におけるポップアップ弁や排水配管における吸気弁・逆流防止弁などで、弁開閉等の動作に関与する付勢手段としてスプリングが用いられることがある(例えば、特許文献1および2参照。)。   Conventionally, a spring is sometimes used as an urging means involved in valve opening and closing operations in a pop-up valve in a drain plug device, an intake valve and a backflow prevention valve in a drain pipe, and the like (see, for example, Patent Documents 1 and 2). .)

図3は、従来の弁用スプリングのガイド構造を示す図である。ここでは、排水栓装置におけるポップアップ弁のギア構造にスプリングが用いられている例を図示している。この排水栓装置の概略を説明すると、排水栓本体51、弁体52、弁軸53およびスプリング55を備え、スプリング55が上方に付勢し弁軸53を押し上げて弁体52を開く構成となっている。そして、弁用スプリングのガイド構造とは、スプリング55内には弁軸53の下端から延設されたガイド部54を挿通することにより、弁用のスプリングの付勢方向の変位を防止するというものである。   FIG. 3 is a view showing a conventional guide structure for a valve spring. Here, an example is shown in which a spring is used in the gear structure of the pop-up valve in the drain plug device. The outline of the drain plug device will be described. The drain plug body 51, the valve body 52, the valve shaft 53 and the spring 55 are provided, and the spring 55 is biased upward to push up the valve shaft 53 to open the valve body 52. ing. The guide structure of the valve spring is to prevent displacement of the valve spring in the urging direction by inserting a guide portion 54 extending from the lower end of the valve shaft 53 into the spring 55. It is.

特開2000−342468号公報JP 2000-342468 A 特開2012−241486号公報JP 2012-241486 A

しかしながら、上記のような弁用スプリングのガイド構造では、図4に示すように、外力など何らかの原因でガイド部が傾いた状態のままスプリングが収縮すると、ガイド部の先端が角張っているためガイド部先端がスプリングを巻き込んで破損させてしまうという問題がある。   However, in the guide structure of the valve spring as described above, as shown in FIG. 4, when the spring contracts while the guide portion is tilted for some reason such as an external force, the guide portion is angular because the tip of the guide portion is angular. There is a problem that the tip is caught and damaged by the spring.

そこで、本発明は、このような問題に鑑みなされたものであり、ガイド部が傾いてもスプリングを破損させることがなく、開閉動作の安定性に優れた弁用スプリングのガイド構造を提供することを目的とする。   Therefore, the present invention has been made in view of such a problem, and provides a guide structure for a valve spring that does not damage the spring even when the guide portion is inclined and has excellent stability in opening and closing operations. With the goal.

上記の課題を解決するため、本発明に係る弁用スプリングのガイド構造は、排水栓装置や排水配管における各種弁の動作に関与するスプリングにスプリングの付勢方向の変位を防止するガイド部材を挿通した弁用スプリングのガイド構造であって、前記ガイド部材におけるスプリングの収縮方向側の先端が先細りとなる傾斜をつけた形状に形成されていることを特徴とする。   In order to solve the above-mentioned problems, the guide structure for a valve spring according to the present invention inserts a guide member for preventing displacement in the biasing direction of the spring into a spring involved in the operation of various valves in the drain plug device or drain pipe. The valve spring guide structure is characterized in that the tip of the guide member on the contraction direction side of the spring is formed in a tapered shape.

これにより、ガイド部先端が先細りとなる形状としているので、ガイド部が傾いてもスプリングを巻き込んで破損させることがなく、また、スプリングに接触して誤動作を生じさせることがなく、開閉動作の安定性に優れた弁用スプリングのガイド構造が実現される。   As a result, the tip of the guide part is tapered, so that even if the guide part is tilted, the spring will not be caught and damaged, and it will not touch the spring and cause malfunctions. An excellent valve spring guide structure is realized.

ここで、前記ガイド部材の先端が円弧状、角錐状またはテーパー状に形成されているのが好ましい。   Here, it is preferable that the tip of the guide member is formed in an arc shape, a pyramid shape, or a taper shape.

また、前記ガイド部材の先端の傾斜角度は、前記ガイド部材の軸が偏位しうる角度に基づいて設定されるのが好ましい。   The inclination angle of the tip of the guide member is preferably set based on an angle at which the axis of the guide member can be displaced.

これにより、ガイド部の軸の傾きうる角度よりも、ガイド部先端が傾斜することで、スプリングの巻き込みを確実に防ぐことが可能となる。   As a result, the tip of the guide portion is inclined more than the angle at which the shaft of the guide portion can be inclined, so that the spring can be reliably prevented from being caught.

以上のように、本発明に係る弁用スプリングのガイド構造によれば、ガイド部先端が先細りとなる形状としているので、ガイド部が傾いても弁用のスプリングを巻き込むことがなく、スプリングの破損や弁開閉の誤動作を防ぐことができ、安定性に優れた弁用スプリングのガイド構造が得られる。   As described above, according to the guide structure for a valve spring according to the present invention, the tip of the guide portion is tapered, so that even if the guide portion is tilted, the spring for the valve is not caught and the spring is damaged. In addition, a valve spring guide structure with excellent stability can be obtained.

弁用スプリングのガイド構造を示す図である。It is a figure which shows the guide structure of the spring for valves. 弁用スプリングのガイド部が傾斜した状態を示す図である。It is a figure which shows the state which the guide part of the valve spring inclined. 従来の弁用スプリングのガイド構造を示す図である。It is a figure which shows the guide structure of the conventional valve spring. 従来の構造においてガイド部が傾斜した状態を示す図である。It is a figure which shows the state which the guide part inclined in the conventional structure.

以下、本発明に係る弁用スプリングのガイド構造について図を参照しながら説明する。   Hereinafter, a guide structure for a valve spring according to the present invention will be described with reference to the drawings.

図1は、弁用スプリングのガイド構造を示す図である。   FIG. 1 is a view showing a guide structure of a valve spring.

本実施の形態では、排水栓装置におけるポップアップ弁のギア構造にスプリングが用いられている例を挙げて説明する。排水栓装置は、排水栓本体1、弁体2、弁軸3およびスプリング5を備え、スプリング5が上方に付勢し弁軸3を押し上げて弁体2を開く構成となっている。本実施の形態に係る弁用スプリングのガイド構造は、スプリング5内に弁軸3の下端から延設されたガイド部4を挿通することにより、弁用のスプリング5の付勢方向がずれるのを防止するものである。   In the present embodiment, an example in which a spring is used in the gear structure of the pop-up valve in the drain plug device will be described. The drain plug device includes a drain plug body 1, a valve body 2, a valve shaft 3 and a spring 5, and the spring 5 biases upward to push up the valve shaft 3 to open the valve body 2. In the guide structure of the valve spring according to the present embodiment, the biasing direction of the valve spring 5 is shifted by inserting the guide portion 4 extending from the lower end of the valve shaft 3 into the spring 5. It is to prevent.

図1でガイド部近傍を拡大して示すように、ガイド部4におけるスプリング5の収縮方向側先端であるガイド部先端6は先細りとなる傾斜をつけた形状に形成されている。ここでは、ガイド部先端6を円弧状としているが、先細りとなる傾斜をつけた形状であれば角錐状やテーパー状であってもよい。   As shown in the enlarged view of the vicinity of the guide portion in FIG. 1, the guide portion tip 6, which is the tip in the contraction direction of the spring 5 in the guide portion 4, is formed in a tapered shape. Here, the guide tip 6 is arcuate, but it may be pyramidal or tapered as long as it is tapered.

図2は、弁用スプリングのガイド部が傾斜した状態を示す図である。   FIG. 2 is a view showing a state in which the guide portion of the valve spring is inclined.

弁体2が開いた状態で弁体2に側方からの外力がかかる等の原因で弁軸3が垂直軸から偏位することがある。弁軸3から延設されたガイド部4も同様に偏位してガイド部4が傾いた状態となる。このとき、図2でガイド部近傍を拡大して示すように、ガイド部先端6は先細りとなる円弧状に形成されているから、ガイド部4が傾いてもスプリング5を巻き込むことがなく、スプリング5を破損させたり誤作動を生じさせたりすることがない。ガイド部先端6の傾斜角度αは、ガイド部4の軸が偏位しうる角度βに基づいて設定されており、角度βよりも角度αが大きくなるように設定することで、ガイド部4の傾きによりスプリング5の巻き込みを確実に防ぐことができる。   The valve shaft 3 may be deviated from the vertical axis due to an external force applied to the valve body 2 in a state where the valve body 2 is opened. Similarly, the guide portion 4 extending from the valve shaft 3 is also displaced and the guide portion 4 is inclined. At this time, as shown in an enlarged view of the vicinity of the guide portion in FIG. 2, the guide portion tip 6 is formed in a tapered arc shape, so that even if the guide portion 4 is tilted, the spring 5 is not entangled. 5 will not be damaged or malfunction will not occur. The inclination angle α of the guide portion tip 6 is set based on an angle β at which the axis of the guide portion 4 can be deviated, and is set so that the angle α is larger than the angle β. The inclination of the spring 5 can surely prevent the spring 5 from being caught.

このように、本実施の形態に係る弁用スプリングのガイド構造によれば、スプリング5内に挿通されるガイド部4において、ガイド部先端6を先細りとなる形状としているので、ガイド部4が何らかの原因で傾いてもスプリング5を巻き込んで破損させることがなく、また、スプリング5に接触して誤動作を発生させることもなく、弁の開閉動作を安定させることができる。   As described above, according to the guide structure of the valve spring according to the present embodiment, the guide portion 4 is inserted into the spring 5, and the guide portion tip 6 is tapered. Even if it is tilted due to the cause, it is possible to stabilize the valve opening / closing operation without causing the spring 5 to be caught and damaged, and without causing a malfunction due to contact with the spring 5.

以上、本発明に係る弁用スプリングのガイド構造について、実施形態に基づいて説明したが本発明はこれに限定されるものではなく、本発明の目的を達成でき、かつ発明の要旨を逸脱しない範囲内で種々設計変更が可能であり、それらも全て本発明の範囲内に包含されるものである。   As mentioned above, although the guide structure of the valve spring according to the present invention has been described based on the embodiment, the present invention is not limited thereto, and the scope of the present invention can be achieved and does not depart from the gist of the invention. Various design changes are possible within the scope of the present invention, and they are all included within the scope of the present invention.

例えば、上記実施の形態では、排水栓装置におけるポップアップ弁のギア構造に用いられるスプリングのガイド構造を例に挙げて説明したが、これに限られるものではない。弁用のスプリングにガイド部を挿通してスプリングの付勢方向のズレを防止するものであれば、ポップアップ弁の軸のショックアブソーバーに用いられるスプリングや、常時閉塞型の吸気弁や逆流防止弁等に用いられるスプリングのガイド構造であってもよい。   For example, in the embodiment described above, the guide structure of the spring used in the gear structure of the pop-up valve in the drain plug device has been described as an example, but the present invention is not limited to this. As long as the guide part is inserted into the spring for the valve to prevent displacement in the spring biasing direction, the spring used for the shock absorber of the shaft of the pop-up valve, the normally closed intake valve, the backflow prevention valve, etc. It may be a spring guide structure used in the above.

本発明は、ポップアップ弁や逆流防止弁等の弁用のスプリングを備える部材におけるスプリングのガイド構造として有用である。   The present invention is useful as a spring guide structure in a member including a spring for a valve such as a pop-up valve or a backflow prevention valve.

1,51 排水栓本体
2,52 弁体
3,53 弁軸
4,54 ガイド部
5,55 スプリング
6 ガイド部先端

1,51 Drain plug body 2,52 Valve body 3,53 Valve shaft 4,54 Guide part 5,55 Spring 6 Tip of guide part

Claims (3)

排水栓装置や排水配管における各種弁の動作に関与するスプリングにスプリングの付勢方向の変位を防止するガイド部材を挿通した弁用スプリングのガイド構造であって、
前記ガイド部材におけるスプリングの収縮方向側の先端が先細りとなる傾斜をつけた形状に形成されている
ことを特徴とする弁用スプリングのガイド構造。
A valve spring guide structure in which a guide member for preventing displacement in the biasing direction of the spring is inserted into a spring involved in the operation of various valves in the drain plug device and drain pipe,
A guide structure for a valve spring, wherein the guide member is formed in a tapered shape with a tip on the contraction direction side of the spring being tapered.
前記ガイド部材の先端が円弧状、角錐状またはテーパー状に形成されている
ことを特徴とする請求項1記載の弁用スプリングのガイド構造。
The guide structure of the valve spring according to claim 1, wherein a tip end of the guide member is formed in an arc shape, a pyramid shape, or a taper shape.
前記ガイド部材の先端の傾斜角度は、前記ガイド部材の軸が偏位しうる角度に基づいて設定される
ことを特徴とする請求項1または2記載の弁用スプリングのガイド構造。
The guide structure of the valve spring according to claim 1 or 2, wherein an inclination angle of a tip of the guide member is set based on an angle at which an axis of the guide member can be displaced.
JP2015251384A 2015-12-24 2015-12-24 Valve spring guide structure Active JP6682722B2 (en)

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JP2015251384A JP6682722B2 (en) 2015-12-24 2015-12-24 Valve spring guide structure

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JP6682722B2 JP6682722B2 (en) 2020-04-15

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63176166U (en) * 1987-03-31 1988-11-15
JPH0536679U (en) * 1991-10-15 1993-05-18 富士写真フイルム株式会社 Magnetic tape cartridge
JP2004034336A (en) * 2002-06-28 2004-02-05 Fuji Xerox Co Ltd Ink supply unit, subink tank and inkjet recorder

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63176166U (en) * 1987-03-31 1988-11-15
JPH0536679U (en) * 1991-10-15 1993-05-18 富士写真フイルム株式会社 Magnetic tape cartridge
JP2004034336A (en) * 2002-06-28 2004-02-05 Fuji Xerox Co Ltd Ink supply unit, subink tank and inkjet recorder

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