| 摘要 |
A propulsion apparatus comprises a rotating drive member 212 having an axis of rotation, and a reversible motor 214 coupled to the rotating drive member to rotate the drive member in first and second directions. A mounting arrangement is configured to pivotally mount the rotating drive member onto a toy about a mount axis 220, and at least one pivot stop mechanism 234 is provided. Operation of the reversible motor 214 rotates the drive member 212 in the first direction causing the drive member to pivot about the mount axis 220 to a first position defined by a pivot stop mechanism 234 and provide a propulsion force in a first propulsion direction. Operation of the reversible motor to rotate the drive member in the second direction causes the drive member to pivot about the mount axis to a second position defined by a pivot stop mechanism and provide a propulsion force in a second propulsion direction. The first and second propulsion directions are within 90 degrees of one another. |
