| 摘要 |
An arm assembly includes three first arm units connected to a base frame of a parallel robot, a bracket unit disposed below and spaced apart from the base frame, and three second arm units. Each of the second arm units includes a first axle sub-unit journaled to a respective one of the first arm units, a pair of second axle sub-units connected to the first axle sub-unit, a fourth axle sub-unit journaled to the bracket unit, a pair of third axle sub-units connected to the fourth axle sub-unit, and a pair of rod members. Each of the rod members is connected to a respective one of the second axle sub-units and a respective one of the third axle sub-units. |
| 主权项 |
1. An arm assembly for connection with a base frame of a parallel robot, comprising:
a plurality of angularly spaced-apart first arm units adapted to be connected rotatably to the base frame; a bracket unit disposed below and spaced apart from the base frame; and a plurality of angularly spaced-apart second arm units, each of said second arm units being connected to a respective one of said first arm units and said bracket unit, and including
a first axle sub-unit that is journaled to the respective one of said first arm units and that has an axis extending along a first axial line,a pair of spaced-apart second axle sub-units that are connected to said first axle sub-unit and that have respective axes extending along second axial lines which are perpendicular to the first axial line,a fourth axle sub-unit that is journaled to said bracket unit, and that has an axis extending along a fourth axial line which is parallel to the first axial line,a pair of spaced-apart third axle sub-units that are connected to said fourth axle sub-unit, and that have respective axes extending along third axial lines which are perpendicular to the fourth axial line, anda pair of rod members, each of which has one end portion connected to a respective one of said second axle sub-units and rotatable about the axis of the respective one of said second axle sub-units, and another end portion opposite to said one end portion, connected to a respective one of said third axle sub-units and rotatable about the axis of the respective one of said third axle sub-units. |
