| 摘要 |
A two degree-of-freedom apparatus is disclosed. In one embodiment, the apparatus comprises: a first rotary drive comprising a cylindrical first driver member rotatable about a first driver axis and coupled to a first driven member having an arc-shaped surface of a cylinder; and a secondary rotary drive comprising a cylindrical second driver member rotatable about a second driver axis and coupled to a second driven member shaped as a cylinder or having an arc-shaped surface of a cylinder. Rotation of the first driver member rotates the first driven member about a first driven axis. The second driven member is rotatably mounted to a link member fixedly connected to the first driven member. Rotation of the second driver member rotates the second driven member about a second driven axis. The second driven member is coplanar with the first driven member. The second driver axis is coincident with the first driven axis. |
