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Robot apparatus

  • US 4,721,005 A
  • Filed: 06/05/1986
  • Issued: 01/26/1988
  • Est. Priority Date: 06/06/1985
  • Status: Expired due to Fees
First Claim
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1. A robot apparatus comprisinga rail unit including a rail extending in the direction of an axis of a Cartesian coordiante system having X-, Y- and Z-axes,an X-axis slide unit movable in a first direction on said rail unit,a Y-axis slide unit mounted on said X-axis slide unit and movaable in a second direction normal to said first direction,a Z-axis slide unit mounted on said Y-axis slide unit and movable in a third direction normal to said first and second directions,said X-axis slide unit having an X-axis drive mechanism, said Y-axis slide unit having a Y-axis drive mechanism, and said Z-axis slide unit having a Z-axis drive mechanism,said rail unit including a first pair of parallel horizontal rail members which are vertically spaced from each other, said X-axis slide unit being mounted on said first pair of parallel horizontal rail members,said Y-axis slide unit including a second pair of parallel horizontal rail members which are vertically spaced from each other,a Y-axis slide base being mounted on said second horizontal rail members, andsaid Z-axis slide unit being fixed to said Y-axis slide base.

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