UMBRELLA VALVE

To provide an umbrella valve capable of easily deforming and deflecting a lip portion, and uniformly and stably being deformed in a lip lift direction even at a low pressure with a sufficient deformation amount.SOLUTION: An umbrella valve 1 includes a valve base portion 2, and an umbrella-shaped lip...

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Bibliographic Details
Main Authors ARIGA HIDETAKA, WATABE MITSUO, YOSHITSUNE SHUJI, NAGASHIMA JIRO
Format Patent
LanguageEnglish
Japanese
Published 29.11.2023
Subjects
ACTUATING-FLOATS
BASIC ELECTRIC ELEMENTS
BLASTING
COCKS
DEVICES FOR VENTING OR AERATING
ELECTRICITY
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
TAPS
THERMAL INSULATION IN GENERAL
VALVES
WEAPONS
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Summary:To provide an umbrella valve capable of easily deforming and deflecting a lip portion, and uniformly and stably being deformed in a lip lift direction even at a low pressure with a sufficient deformation amount.SOLUTION: An umbrella valve 1 includes a valve base portion 2, and an umbrella-shaped lip portion 3 extending in an oblique direction from a base portion peripheral edge 2a of the valve base portion 2. The valve base portion 2 and the lip portion 3 are integrally formed with an elastically deformable rubber material. The lip portion 3 is formed in a state in which a lip length from the base portion peripheral edge 2a is continuously changed, and a lip peripheral edge portion 8 of the lip portion 3 has lip convex portions 6 curved into the convex shape toward a direction separating from the valve base portion 2, and lip concave portions 7 where the lip peripheral edge portion 8 is curved into the concave shape toward a direction approaching the valve base portion 2. Further, on the lip portion 3, the lip convex portions 6 and the lip concave portions 7 are alternately arranged at equal intervals with the valve base portion 2 as a center.SELECTED DRAWING: Figure 1 【課題】リップ部の変形及び撓みを容易にし、低圧力であってもリップリフト方向への変形を均一、かつ十分な変形量で安定して行うことが可能な傘バルブの提供を課題とする。【解決手段】傘バルブ１は、バルブ基部２と、バルブ基部２の基部周縁２ａから斜め方向に延設された傘状のリップ部３とを具備し、バルブ基部２及びリップ部３は、弾性変形可能なゴム材料によって一体的に形成され、リップ部３は、基部周縁２ａからのリップ長さが連続的に変化して形成され、リップ部３のリップ周縁部８がバルブ基部２から離隔する方向に向かって凸状に湾曲したリップ凸部６、及び、リップ周縁部８がバルブ基部２に近接する方向に向かって凹状に湾曲したリップ凹部７を有する。更に、リップ部３は、リップ凸部６及びリップ凹部７がバルブ基部２を中心として等間隔に交互に配置されている。【選択図】図１
Bibliography:Application Number: JP20220080309