| 摘要 |
The invention concerns a gear device, preferably motor device, for providing rotation about at least one output axis and a method for providing rotation. A body (2) is mounted for a rotation about first (4), second (11), and third (16) axes. The first axis (4) is oriented with respect to the second axis (11) at an inclination angle. The second axis (11) and/or the third axis (16) constitute the at least one output axis of device. The rotation of the body (2) about the third axis (16) gives rise to a change in the inclination angle. A ram (15) applies a torque (21) to the body (2) about the third axis (16) in a sense of increasing inclination angle when the first axis (4) is at a selected inclination angle with respect to the second axis (11) which is greater than 0° and less than 90°. The rotation of the body (2) about the third axis (16) in a sense of decreasing inclination angle is limited such that the inclination angle of the first axis (4) with respect to the second axis (11) remains greater than 0° and less than 90°. The body (2) is rotated about the first axis (4) at an angular velocity greater than a critical angular velocity so that a constant or a decreasing inclination angle is reached. |
