Invention Grant
US4601635A Multilink-type robot 失效
多链式机器人

Multilink-type robot
Abstract:
A multilink-type robot includes an arm support pivotably mounted on a base for angular movement about a vertical axis, the arm support having a pair of side support ledges extending upwardly with a U-shaped recess defined therebetween and extending substantially the entire length of the arm support, a first shaft extending across the recess and having opposite ends rotatably supported on the support ledges, a second shaft rotatably supported on the arm support in coaxial relation to the first shaft for relative rotation with respect to the first shaft, a first arm having one end fixed to the first shaft, a third shaft rotatably supported on an opposite end of the first arm in parallel relation to a first shaft, first rotation transmission for transmitting rotation of the second shaft to the third shaft, a second arm having one end fixed to the third shaft, a fourth shaft rotatably supported on an opposite end of the second arm in parallel relation to the third shaft, a wrist unit fixed to the fourth shaft, and a first and second arm driving mechanism for driving the first and second shafts, respectively, the first and second arm driving mechanism including first and second servomotors, respectively, having output shafts extending in mutually opposite directions and positioned downwardly of a bottom of the recess in the arm support in parallel relation to the first shaft, the output shafts being connected to the first and second shafts, respectively.
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