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Carrying device

  • US 20030012632A1
  • Filed: 08/15/2002
  • Published: 01/16/2003
  • Est. Priority Date: 11/17/1998
  • Status: Active Grant
First Claim
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1. A carrying device comprising:

  • a support member;

    first and second shafts supported on the support member;

    a frog leg type arm having a base end part connected to the first and the second shaft; and

    a holding member for holding a workpiece, connected to a front end part of the frog leg type arm;

    wherein the frog leg type arm comprises;

    a rotatable first drive arm having a base end part mounted on the first shaft, a rotatable second drive arm having a base end part mounted on the second shaft, a first front arm having a base end part pivotally connected to a front end part of the first drive arm by a first joint and a second front arm having a base end part pivotally connected to a front end part of the second drive arm by a second joint;

    the holding member is connected by third and fourth joints to front end parts of the first and the second front arm;

    the holding member is linked to the first and the second front arm by a posture maintaining linkage having two similar antiparallel linkages, and the posture maintaining linkage controls turning of the holding-member relative to the first and the second front arm.

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