PROBLEM TO BE SOLVED: To provide a liquid pressure braking device capable of improving brake feeling.SOLUTION: The liquid pressure braking device includes a fluid supply source 18, pressure adjusting means 66 for adjusting liquid pressure supplied from the supply source and liquid pressure discharged to a reservoir 16, a fluid chamber 64 into which the liquid pressure is introduced from the supply source via the pressure adjusting means, an assisting piston 30 facing the fluid chamber and configured to assist the master piston by receiving the liquid pressure introduced into the fluid chamber, an expansion piston 30e facing the fluid chamber and configured to expand the volume of the fluid chamber by receiving the liquid pressure introduced into the fluid chamber, an engaging part 30d for engaging the assist piston and the expansion piston with each other after the expansion of the volume of the fluid chamber, and a reaction force member 72a for generating a reaction force in a direction for suppressing the expansion of the volume by the expansion piston and releasing the engagement after discharging of the liquid pressure from the fluid chamber to the reservoir, and the assisting of the assisting piston is carried out during or after the expansion of the volume of the fluid chamber by the expansion piston.SELECTED DRAWING: Figure 1
【課題】ブレーキフィーリングの向上を図る液圧制動装置を提供すること。【解決手段】流体の供給源18と、供給源から供給される液圧と、リザーバ16へ排出する液圧の調整を行なう調圧手段66と、供給源から調圧手段を介して液圧が導入される流体室64と、流体室に面し、流体室に導入された液圧を受けてマスタシリンダのマスタピストンを助勢する助勢ピストン30と、流体室に面し、流体室に導入された液圧を受けて流体室の容積を拡大する拡大ピストン30eと、流体室の容積の拡大後に助勢ピストンと拡大ピストンとを係合させる係合部30dと、拡大ピストンによる容積の拡大を抑制する方向に反力を発生し、流体室からリザーバへの液圧が排出された後に係合を解除する反力部材72aと、を有し、拡大ピストンの流体室の容積の拡大中または拡大後に助勢ピストンによる助勢が行われることを特徴とする。【選択図】図1
LIQUID PRESSURE BRAKING DEVICE
液圧制動装置
2016-05-30
Patent
Electronic Resource
Japanese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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