PROBLEM TO BE SOLVED: To reduce cost by using a simple configuration by enabling shared use of hydraulic driving systems for parking and locking in a hydraulic parking rod driving device.SOLUTION: A hydraulic parking rod driving device includes: a first return spring 21 for energizing a parking rod 10 forward; a first oil chamber 22 for applying retraction hydraulic pressure to the parking rod 10; first and second locking grooves 23, 24 of the parking rod 10; a locking pin 25 engaged with either of the locking grooves during forward movement and separated from it during retraction; a second return spring 26 for energizing the locking pin forward; a second oil chamber 27 for applying retraction hydraulic pressure to the locking pin; and hydraulic pressure supply means 30 for supplying shared hydraulic pressure to both of the oil chambers. The supplied hydraulic pressure is variable, and initial load that is equal to or larger than load for moving the locking pin to the retraction position is applied to the first return spring. An orifice 34 is interposed in a first oil passage 33b for connecting the hydraulic pressure supply means with the first oil chamber, and pipeline resistance of the first oil passage is set larger than that of a second oil passage for connecting the hydraulic pressure supply means with the second oil chamber.SELECTED DRAWING: Figure 1

    【課題】油圧式パークロッド駆動装置においてパーク用とロック用との各油圧駆動系統とを共用化してシンプルな構成でコスト削減を実現する。【解決手段】パークロッド10を前進付勢する第1リターンスプリング21と、パークロッド10に後退油圧を与える第1油室22と、パークロッド10の第1及び第2ロック溝23,24と、前進時に何れかのロック溝に係合し後退時に離脱するロックピン25と、ロックピンを前進付勢する第2リターンスプリング26と、ロックピンに後退油圧を与える第2油室27と、両油室に共通の油圧を供給する油圧供給手段30とを有し、供給油圧は可変であり、第1リターンスプリングはロックピンを後退位置に移動させる荷重以上の初期荷重を与えられ、油圧供給手段と第1油室とを接続する第1油路33bにオリフィス34が介装され、第1油路は油圧供給手段と第2油室とを接続する第2油路よりも管路抵抗が大きく設定される。【選択図】図1


    Access

    Download


    Export, share and cite



    Title :

    HYDRAULIC PARKING ROD DRIVING DEVICE AND HYDRAULIC PARKING LOCKING DEVICE USING THE SAME


    Additional title:

    油圧式パークロッド駆動装置及びこれを用いた油圧式パークロック装置


    Contributors:

    Publication date :

    2017-08-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF



    Hydraulic locking controllable parking device

    LIANG ZHENGLONG / YANG ENJIU | European Patent Office | 2023

    Free access

    Parking hydraulic system

    WANG CHENGLI / ZHANG GUANGHAN / HUANG YOUBIN et al. | European Patent Office | 2020

    Free access

    Hydraulic lifting parking mechanism

    LIANG XIAOMING / LI ZHENPEI | European Patent Office | 2021

    Free access

    Electronic Hydraulic Converter Parking Brake Device

    JIN KWANG BAE / KIM DO HYEOK | European Patent Office | 2017

    Free access

    LOCKING DEVICE FOR PARKING BRAKE AND PARKING BRAKE

    JOHANNES STOHR / FABIAN GRULER / WILFRIED SYNOVZIK | European Patent Office | 2021

    Free access