To provide a fluid pressure actuator and a brake device of a rail machine including the fluid pressure actuator, capable of improving a degree of freedom in designing by thinning and reduction of a connection pipe system.SOLUTION: A fluid pressure actuator includes a fluid pressure cylinder 13 having a fluid pressure cylinder body 13a, a fluid pressure piston 13b fitted into the fluid pressure cylinder body 13a in a manner that it can be projected and retracted, and connected to an operated member, and a fluid pressure cylinder chamber 13c defined by a pressure receiving face of the fluid pressure piston 13b and an inner wall of the fluid pressure cylinder body 13a, and a fluid pressure unit 14 having a positive pressure/negative pressure generation mechanism 50 for expanding and contracting the fluid pressure cylinder 13 by adjusting an inner pressure of the fluid pressure cylinder chamber 13c to positive pressure or negative pressure by supplying and discharging a working fluid to the fluid pressure cylinder chamber 13c of the fluid pressure cylinder 13.SELECTED DRAWING: Figure 2
【課題】薄型化を図り且つ接続配管系統の削減を図って設置の自由度を高めることができる流体圧アクチュエータ及び該流体圧アクチュエータを備えた軌道走行式機械の制動装置を提供する。【解決手段】流体圧シリンダ本体13aと、流体圧シリンダ本体13aに突出・引込自在に嵌入され且つ被作動部材に連結される流体圧ピストン13bと、流体圧ピストン13bの受圧面と流体圧シリンダ本体13aの内壁とによって画成される流体圧シリンダ室13cとを有する流体圧シリンダ13と、流体圧シリンダ13の流体圧シリンダ室13cへ作動流体を給排して流体圧シリンダ室13cの内圧を正圧又は負圧とすることにより流体圧シリンダ13を伸縮作動させる正圧・負圧発生機構50を有する流体圧ユニット14とを備える。【選択図】図2
FLUID PRESSURE ACTUATOR AND BRAKE DEVICE OF RAIL MACHINE INCLUDING FLUID PRESSURE ACTUATOR
流体圧アクチュエータ及び該流体圧アクチュエータを備えた軌道走行式機械の制動装置
2019-03-07
Patent
Electronic Resource
Japanese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / B61H Bremsen oder andere Verzögerungseinrichtungen ausgebildet für Schienenfahrzeuge , BRAKES OR OTHER RETARDING APPARATUS PECULIAR TO RAIL VEHICLES / B66C Krane , CRANES / F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen |