| 摘要 |
PROBLEM TO BE SOLVED: To eliminate a restriction of the angle of visibility and to always obtain an appropriate video by rotating a second supporting body with a second axis orthogonal to a first axis on the same plane as a rotational axis. SOLUTION: An X motor 5 is fixed to a spherical supporting body 4 and a warm gear 5a is fitted to a tip of the X motor 5. An X-axis driving force transmission part 6 is fixed to a Y-shaped supporting body 8 and it is fixed to the spherical supporting body 4 through a bearing which can be rotated around an X-axis. Around gear 6a is fixed on the shaft 6 where the spherical supporting body 4 can rotate around the X-axis. The X motor 5 rotates the spherical supporting body 4 through the warm gear 5a along the circumference of the fixed round gear 6a. A Y motor 10 rotates a Y-shaped supporting body 8 supported by a pedestal-type supporting body 12 on the Y-axis. In a position relation between the Y-shaped supporting body 8 and the pedestal-type supporting body 12, the X-axis and the Y-axis, which become the rotary axes of the supporting body, are to be fitted to the orthogonal positions. |
