Joystick type control device with displacement feel
    1.
    发明授权
    Joystick type control device with displacement feel 失效
    具有位移感的JOYSTICK型控制装置

    公开(公告)号:US3744335A

    公开(公告)日:1973-07-10

    申请号:US3744335D

    申请日:1972-05-23

    Applicant: SAAB SCANIA AB

    Abstract: The stick of a joystick type control device is rigidly affixed to a carrier plate that extends normal to it. The plate is gimbal mounted on a fixed base and has four reaction receiving elements equidistant from the stick axis, arranged two along each gimbal axis, at opposite sides of the stick. Four springs react, all in the same direction, between the fixed base and the plate, one against each reaction receiving element. When the stick is in a normal position the springs exert equal forces.

    Abstract translation: 操纵杆式控制装置的棒刚性地固定到与其垂直延伸的载板上。 该板是万向架安装在固定的基座上,并且具有与杆轴线等距离的四个反作用接收元件,沿着每个万向轴线布置在杆的相对侧。 四个弹簧都在相同的方向上在固定基座和板之间反应,一个对着每个反应接收元件。 当棒处于正常位置时,弹簧施加相等的力。

    Brake device particularly for hydraulic hand brakes on railroad cars
    2.
    发明授权
    Brake device particularly for hydraulic hand brakes on railroad cars 失效
    刹车装置特别适用于液压手推车

    公开(公告)号:US3717386A

    公开(公告)日:1973-02-20

    申请号:US3717386D

    申请日:1970-11-03

    Applicant: SAAB SCANIA AB

    CPC classification number: B60T17/16 B60T7/08 B60T11/10

    Abstract: AN ENDWISE SLIDABLE ROD, SUCH AS A BRAKE ROD, IS RELEASABLY LOCKED AGAINST SLIDING IN ONE DIRECTION BY A DISC-LIKE ANNULAR CATCH COAXIALLY SURROUNDING THE ROD AND HAVING ITS PERIPHERY ENGAGING AN ANNULAR SEAT THAT HOLDS THE CATCH AGAINST BODILY AXIAL DISPLACEMENT. THE CATCH IS FRUSTOCONICAL, CONVERGING IN THE OPPOSITE DIRECTION AND HAS SLITS RADIAL ITS CENTRAL APERTURE, DEFINING SPRING SEGMENTS THAT FRICTIONALLY ENGAGE THE ROD. A SLEEVE AROUND THE ROD, HYDRAULICALLY ACTUATABLE IN SAID OPPOSITE DIRECTION, DISENGAGES THE SPRING SEGMENTS FROM THE ROD TO RELEASE THE ROD FOR MOVEMENT IN SAID ONE DIRECTION.

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