公开(公告)号：US6044927A

公开(公告)日：2000-04-04

申请号：US158866

申请日：1998-09-23

申请人： Enoch L. Newlin

发明人： Enoch L. Newlin

IPC分类号： B66F7/06 ,  B66F11/04 ,  E06C1/00

CPC分类号： B66F11/042

摘要： A scissors-type work platform lift machine includes a chassis, a work platform, a scissors lift mechanism, and a telescopable electro-mechanical actuation arrangement. The work platform is disposed above the chassis. The scissors lift mechanism has a plurality of portions pivotally movable relative to one another, an upper end portion pivotally mounting the work platform above the chassis, and a lower end portion pivotally mounted on the chassis. The pivotally movable portions are movable vertically between retracted and expanded conditions so as to move the work platform between lowered and raised positions relative to the chassis. The actuation arrangement extends and is mounted to selected upper and lower ones of the pivotally movable portions of the lift mechanism and is adapted to operate the lift mechanism between the retracted and expanded conditions. The actuation arrangement has a telescopable contractable and extendable component capable of varying in length and operable to undergo rotation in a first angular direction and translational contraction in length in a first linear direction so as to cause movement of the lift mechanism vertically toward the retracted condition and thereby movement of the work platform toward the lowered position. The telescopable component also is operable to undergo rotation in a second angular direction opposite to the first angular direction and translational extension in length in a second linear direction opposite to the first linear direction so as to cause movement of the lift mechanism vertically toward the expanded condition and thereby movement of the work platform toward the raised position.

摘要翻译： 剪刀型工作平台升降机包括底盘，工作平台，剪刀提升机构和可伸缩机电致动装置。 工作平台位于机箱的上方。 剪刀提升机构具有能够相对于彼此枢转运动的多个部分，将工作平台可枢转地安装在底盘上方的上端部和可枢转地安装在底架上的下端部。 可枢转地运动的部分可在收缩和膨胀状态之间垂直移动，以使工作平台相对于底盘在降低和升高的位置之间移动。 致动装置延伸并且安装到提升机构的可选择的上部和下部可枢转运动部分中，并且适于在缩回和膨胀状态之间操作提升机构。 致动装置具有可伸缩的可收缩和可延伸的部件，其能够在长度上变化并且可操作以在第一角度方向上进行旋转，并且在第一直线方向上可进行长度的平移收缩，从而使提升机构垂直向缩回状态移动， 从而使工作平台向下降位置移动。 可伸缩部件还可操作以在与第一角度方向相反的第二角度方向上旋转，并且在与第一线性方向相反的第二线性方向上的长度上的平移延伸，从而使提升机构垂直向扩张状态移动 从而使工作平台向上升位置移动。

公开(公告)号：US6050365A

公开(公告)日：2000-04-18

申请号：US63809

申请日：1998-04-21

申请人： Enoch L. Newlin

发明人： Enoch L. Newlin

IPC分类号： B66F11/04 ,  E06C1/00

CPC分类号： B66F11/042

摘要： A scissors-type work platform lift machine includes a mobile chassis having rear stationary wheels and front steerable wheels, a scissors lift mechanism mounted at a lower end on the chassis, a work platform mounted on an upper end of the lift mechanism, and an electro-mechanical actuation arrangement for operating the lift mechanism between retracted and expanded conditions so as to move the work platform between lowered and raised positions. The electro-mechanical actuation arrangement is mounted to and extends between the mobile chassis and the lower end of the lift mechanism and has a ballscrew shaft operable to rotate in a first angular direction and cause movement of the lift mechanism vertically toward the retracted condition and thereby movement of the work platform toward the lowered position and to rotate in a second angular direction opposite to the first angular direction and cause movement of the lift mechanism vertically toward the expanded condition and thereby movement of the work platform toward the raised position. The actuation arrangement also has an upper joint pivotally and threadably coupling an upper portion of the ballscrew shaft to the lower end of the lift mechanism and a lower joint coupling a lower portion of the ballscrew shaft to the chassis for undergoing limited universal pivotal movement relative thereto. The actuation arrangement further includes an electric motor drivingly coupled to the lower portion of the ballscrew shaft below the lower joint.

摘要翻译： 剪刀型工作平台升降机包括具有后固定轮和前可转向轮的移动底盘，安装在底盘下端的剪刀提升机构，安装在升降机构的上端的工作平台和电动 - 机械致动装置，用于在缩回和膨胀状态之间操作提升机构，以便使工作平台在下降位置和升高位置之间移动。 电动机械致动装置安装在移动底盘和提升机构的下端之间并在其之间延伸，并且具有可操作以在第一角度方向上旋转的滚珠丝杠轴，并且引起升降机构垂直朝向缩回状态的移动，从而 工作平台向下降位置移动并且沿与第一角度方向相反的第二角度方向旋转，并且引起升降机构垂直于扩张状态的移动，从而使工作平台朝向升高位置移动。 致动装置还具有上接头，其可旋转地并且可旋转地将滚珠丝杠轴的上部连接到提升机构的下端;以及下部接头，其将滚珠丝杠轴的下部联接到底架上，以相对于其进行有限的通用枢转运动 。 致动装置还包括电动马达驱动地联接到下接头下方的滚珠丝杠轴的下部。