Wedge based lifting device and system

    公开(公告)号:US10144587B2

    公开(公告)日:2018-12-04

    申请号:US15276566

    申请日:2016-09-26

    Abstract: Features are disclosed for a mobile drive unit and systems including mobile drive units that eliminate the need for dedicated lifting motors. The mobile drive unit arrangements described leverage existing motors used to drive the rolling elements (e.g., wheels) of the mobile drive unit to perform the lifting. For example, a mobile drive unit may include four locomotion motors. Because each motor can be individually controlled, the distance between front and rear (or left and right) rolling elements can be used to actuate mechanisms for lifting payloads without requiring a dedicated lifting motor.

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