A combination X-Y positioning mechanism includes a first guide means linearly reciprocable relative to a frame and a second guide means linearly reciprocable relative to the first guide means with the directions of relative reciprocation being substantially mutually perpendicular. A first carriage means is slidable along the respective first guide means and a second carriage means is fixed to the second guide means responsively to the actuation of a closed loop driven by a pair of stationarily fixed bidirectional drive motors and engageable with a series of strategically placed pulleys. A carrier is slidably supported on the second guide means.
申请公布号
US4833785(A)
申请公布日期
1989.05.30
申请号
US19870104227
申请日期
1987.10.05
申请人
UNITED INNOVATIONS DIVISION OF UNITED ENGINEERS, INC.