Material or article handling – Vertically swinging load support – Grab
Patent
1985-08-28
1987-11-03
Werner, Frank E.
Material or article handling
Vertically swinging load support
Grab
74665A, 74665D, 901 26, 901 28, B25J 1702
Patent
active
047040653
ABSTRACT:
A wrist for an industrial robot with a movable arm is arranged at the outer end of the robot arm and comprises partly a first housing mounted at the end of the arm and journalled for rotation about a first axis which is substantially parallel with the longitudinal axis of the outer part of the arm; partly a second housing journalled in the first housing for pivoting about a second axis which is substantially perpendicular to the axis of rotation of the first housing; partly a tool holder journalled in the second housing for rotation about a third axis which is substantially perpendicular to the second axis; and partly drive and power transmission devices for generating motion in the first and the second housing as well as in the tool holder about the first, the second and the third axis, respectively. The first housing comprises two interconnected sections which are pivotable in relation to each other about a fourth axis extending substantially perpendicularly both to the first axis and to the second axis.
REFERENCES:
patent: 4229136 (1980-10-01), Panissidi
patent: 4283764 (1981-08-01), Crum et al.
patent: 4627786 (1986-12-01), Minematsu et al.
Asea AB
Underwood Donald W.
Werner Frank E.
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