PROBLEM TO BE SOLVED: To suppress vibration of a first valve body when the first valve body is driven to a valve opening position.SOLUTION: When a first projection part 231c of a shaft 231 comes into contact with a guide surface 211f to push up a first valve body 211 above a paper surface, the guide surface 211f separates from a cylinder sheet surface 216c and a large diameter oil passage 216a opens. At this time, because the guide surface 211f is formed in a spherical surface or a tapered surface, the first valve body 211 is also pushed in a perpendicular direction to a reciprocating direction of the first valve body 211 when the first projection part 231c comes into contact with the guide surface 211f and the valve body 211 is driven to a valve opening position. The valve body 211 is supported at two points including a point E and a point F or G, thereby suppressing vibration.SELECTED DRAWING: Figure 7
【課題】第1弁体が開弁位置に駆動されているときの第1弁体の振動を抑制する。【解決手段】シャフト231の第1突起部231cがガイド面211fに当接して第1弁体211が紙面上方に押し上げられると、ガイド面211fがシリンダシート面216cから離れて大径油路216aが開かれる。このとき、ガイド面211fは球面またはテーパ面であるため、第1突起部231cがガイド面211fに当接して第1弁体211が開弁位置に駆動されるときには、第1弁体211は第1弁体211の往復動方向に対して垂直方向にも押される。したがって、第1弁体211は点Eと点F又はGの2点で支持され、振動が抑制される。【選択図】図7
PRESSURE ADJUSTMENT RESERVOIR
調圧リザーバ
2017-01-26
Patent
Electronic Resource
Japanese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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