Mechanical hand
    50.
    发明授权
    Mechanical hand 失效
    机械手

    公开(公告)号:US3927424A

    公开(公告)日:1975-12-23

    申请号:US43521474

    申请日:1974-01-21

    Inventor: ITOH HIDEYO

    CPC classification number: A61F2/583 B25J15/022

    Abstract: A mechanical hand comprises a palm element and at least two finger elements and incorporates a closed link mechanism. The two finger elements are connected at their basal ends, each with a joint, the first one to the palm element and the second one to the forward end of the first finger element, respectively. The closed link mechanism is constructed of the first finger element in combination with a projecting bar which stems at a certain angle from the basal end of the second finger element and constitutes a unitary part in conjunction with the second finger element. Driving this closed link mechanism by an actuator sets the finger elements to movement. When any portion of the finger elements comes into contact with an obstacle standing in its way, the closed link mechanism begins to change its form. In consequence of this change of form, the first finger element and/or the second finger element begins to turn round the joint as a pivot and continues, while adapting the form of the mechanical hand to the immediate environment, to converge in the direction of gradually conforming to the exterior contour of an object desired to be gripped and eventually gripping the object.

    Abstract translation: 机械手包括手掌元件和至少两个手指元件并且包括闭合连杆机构。 两个手指元件在它们的基部端部分别连接,每个端部分别具有接头,第一个连接到手掌元件,第二个连接到第一手指元件的前端。 闭合连杆机构由与第二手指元件的基端相距一定角度的突出杆组合的第一手指元件构成,并与第二手指元件结合构成整体部分。 通过致动器驱动该闭合连杆机构使手指元件移动。 当手指元件的任何部分与正在其中的障碍物接触时,闭合连杆机构开始改变其形状。 由于形式的这种变化,第一手指元件和/或第二手指元件开始以枢轴转动接头,并且在将机械手的形式适应于直接环境的同时继续向下收敛 逐渐地符合期望被抓握并最终夹持物体的物体的外部轮廓。

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