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    • 91. 发明申请
    • STEERING TRAILER OR SEMI-TRAILER
    • 转向拖车或半拖车
    • WO2007137970A1
    • 2007-12-06
    • PCT/EP2007/054947
    • 2007-05-22
    • SANSAVINI STEERING SYSTEMS di Bertozzi Sansavini FabrizioBERTOZZI SANSAVINI, Fabrizio
    • BERTOZZI SANSAVINI, Fabrizio
    • B62D13/04
    • B62D13/04B62D13/025
    • A steering trailer or semi-trailer (1) of the type provided with a device (5) for detecting the angle of displacement between a motor-driven towing vehicle (6) which is being steered and the trailer or semi-trailer (1) in order to control the corresponding steering of at least one steering axle (3,4) of the trailer or semi-trailer (1), the axle having opposing steering hub means interconnected with one another and at least one of which is subject to a steering actuator (13), the trailer or semi-trailer (1) comprises, for each steering axle (3,4), a hydraulic control cylinder (25, 26) belonging to the detection device (5) and a hydraulic actuator cylinder (13) belonging to the steering actuator, these cylinders (13, 25, 26) both being dual-acting and having a double chamber (13a, b;23a,b;24a,b) of identical overall working volume, and being interconnected with one another such that the corresponding chambers are in mutual hydraulic connection via a transfer circuit (15) for the fluid pumped from a chamber (23a, b; 24a, b) of the control cylinder (25,26) to a corresponding chamber (13a, b) of the actuator cylinder (13) and vice versa.
    • 一种设有装置(5)的转向拖车或半拖车(1),用于检测被转向的电动牵引车辆(6)与拖车或半挂车(1)之间的位移角, 为了控制拖车或半挂车(1)的至少一个转向轴(3,4)的对应转向,所述轴具有相互联接的相对的转向轮毂装置,并且其中至少一个受到一个 对于每个转向轴(3,4),拖车或半拖车(1)包括属于检测装置(5)的液压控制缸(25,26)和液压致动器气缸( 这些气缸(13,25,26)都是双作用的并且具有相同的整个工作体积的双室(13a,b; 23a,b; 24a,b),并且与 使得相应的腔室经由用于流体pu的传送回路(15)相互液压连接 从一个房间(23a,b; 24a,b)到致动器缸(13)的相应腔室(13a,b),反之亦然。