公开(公告)号：US4118907A

公开(公告)日：1978-10-10

申请号：US846195

申请日：1977-10-27

申请人： Robert F. Small ,  Joel B. Meredith

发明人： Robert F. Small ,  Joel B. Meredith

IPC分类号： B66F11/04 ,  B66F17/00 ,  E04H12/34

CPC分类号： B66F11/046 ,  B66F17/006

摘要： Mobile lifting equipment having a wheeled vehicle with a frame. The boom structure is mounted on the frame for rotation about a vertical axis, raising and lowering the same about a horizontal axis and for extension and retraction with respect to the vehicle. The boom structure includes an outer boom and an inner boom which is mounted for telescoping movement in the outer boom. First and second extension cylinders are carried by the outer boom for extending and retracting inner boom with respect to the outer boom. An elevation cylinder is connected to the outer boom and is provided for raising and lowering of the boom structure. An elevation control is provided for supplying hydraulic fluid to the elevation cylinder. Piping is provided for connecting the elevation cylinder to one of the first and second extension cylinders so that extension of said one of said first and second extension cylinders is limited by the amount of hydraulic fluid which has been supplied from the elevation cylinder.

摘要翻译： 具有车轮的移动式起重设备具有框架。 悬臂结构安装在框架上以围绕垂直轴线旋转，围绕水平轴线升高和降低臂架结构，并且相对于车辆延伸和缩回。 起重臂结构包括外起重臂和安装成用于在外起重臂中伸缩运动的内起重臂。 第一和第二延伸圆筒由外起重臂承载，用于相对于外起重臂延伸和缩回内起重臂。 升降缸连接到外起重臂，并且设置用于起重臂结构的升降。 提供了用于将液压流体供应到升降缸的升降控制。 提供了用于将升降气缸连接到第一和第二延伸气缸中的一个的管道，使得所述第一和第二延伸气缸中的所述一个的延伸受到从升降气缸供应的液压流体的量的限制。

公开(公告)号：US4155518A

公开(公告)日：1979-05-22

申请号：US872479

申请日：1978-01-26

申请人： Robert F. Small

发明人： Robert F. Small

IPC分类号： B60P3/035 ,  B65H49/32 ,  B65H54/54 ,  B65H75/40 ,  B60P1/48

CPC分类号： B65H49/325 ,  B60P3/035 ,  B65H49/32 ,  B65H54/54

摘要： Reel lifting apparatus utilizing a truck-like vehicle having a wheeled framework with a subframe mounted on the framework. A truck bed body is mounted upon the subframe and overlies the subframe. An elongate rod-like member is provided which is pivotally mounted on the body so that it extends in a direction at right angles to the longitudinal axis of the vehicle. First and second arms are mounted in fixed spaced apart positions on the rod-like member. The arms are formed so that they are capable of carrying a reel mounted upon a spindle. A plate is secured to the rod-like member. An L-shaped member has one end of the same pivotally connected to the subframe and the other end pivotally connected to the plate. An actuator is pivotaly connected to the subframe and to the L-shaped member at a point intermediate the ends of the L-shaped member for causing the movement of the arms through an angle in excess of 135.degree.. An in-line motor drive train is mounted upon one of the arms. Means is provided for connecting the drive train to the reel so that the reel can be driven.

摘要翻译： 卷扬机提升装置利用具有轮式框架的卡车式车辆，其具有安装在框架上的子框架。 一个卡车车身安装在子车架上并且覆盖着副车架。 提供了细长的杆状构件，其被枢转地安装在主体上，使得其沿与车辆的纵向轴线成直角的方向延伸。 第一和第二臂被安装在杆状构件上的固定间隔开的位置。 臂形成为能够承载安装在主轴上的卷轴。 板固定到杆状构件。 L形构件的一端可枢转地连接到副框架，另一端枢转地连接到该板。 致动器在L形构件的端部中间的点处枢转地连接到副车架和L形构件，以使臂的移动超过135度的角度。 在其中一个臂上安装有串联的电动机传动系。 提供了用于将传动系连接到卷轴的装置，使得可以驱动卷轴。