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    Trailer coupling device
    2.
    发明公开
    Trailer coupling device 失效
    Anhängerkupplung。

    公开(公告)号：EP0362170A1

    公开(公告)日：1990-04-04

    申请号：EP89850300.8

    申请日：1989-09-13

    申请人： SIARR SWEDEN AB

    发明人： Kristensen, Stig

    IPC分类号： B60D1/52 ,  F16B21/12

    CPC分类号： B60D1/52 ,  F16B21/16 ,  Y10T403/583

    摘要： A locking device at a trailer coupling, including a first part (1), which is adapted to be attachable to a towing vehicle, and a second part (2), which is adapted to be coupled to a trailed vehicle and to be releasably attachable to the first part (1). The first part (1) includes an opening (8), into which the second part (2) is introduceable, and a locking bolt (10), which is displaceable in its axial direction into the opening (8) in the first part (1) to lock the second part (2) by engagement in a locking recess (11) therein in the position thereof where it is introduced in the opening (8) of the first part (1). The locking bolt (10) is urged by a spring (20) in a direction towards the opening (8) in the first part and manually operable in the opposite direction. The locking bolt (10) is also adapted to be positively displaceable in a direction into the opening (8) in the first part (1) as well as out of the opening by screwing motion between co-acting first and second threads (33,32, respectively) associated with the first part (1) and the locking bolt (1), respectively, said threads (32,33) being arranged such that their co-action ceases after a certain displacement of the locking bolt (10) in the latter direction and the locking bolt (10) becomes displaceable independently of the threads (32,33) against the action of the spring (20).

    摘要翻译： 拖车联接器处的锁定装置，包括适于附接到牵引车辆的第一部分（1）和适于联接到拖车并且可释放地附接的第二部分（2） 到第一部分（1）。 第一部分（1）包括可以引入第二部分（2）的开口（8）和可在其轴向方向上移动到第一部分（8）中的开口（8）的锁定螺栓（10） 1）通过在其中被引入第一部分（1）的开口（8）的位置处通过接合在其中的锁定凹部（11）中来锁定第二部分（2）。 锁定螺栓（10）被弹簧（20）沿着朝向第一部分中的开口（8）的方向推动并且可以在相反方向上手动操作。 锁定螺栓（10）还适于在朝向第一部分（1）中的开口（8）的方向上以及通过在共同作用的第一和第二螺纹（33， 分别与第一部分（1）和锁定螺栓（1）相关联，所述螺纹（32,33）分别布置成使得它们的协调在锁定螺栓（10）的一定位移之后停止 后一方向和锁定螺栓（10）可克服弹簧（20）的作用而独立于螺纹（32,33）移动。