| 摘要 |
<p>A rotatable seat for a sucker has a stationary plate 10 and a rotating plate 20. When in used, the stationary plate 10 is attached to the platform of the car. Because an outside surface 21 of the rotating plate 20 is smooth, the assistant device 30 can be attached to the smooth outside surface 21 easily and securely by suction pad 31. Because a mounting segment 23 is mounted in a mounting hole 11, and multiple outside positioning segments 24 engage with multiple inside positioning segments 12, the rotating plate 20 and the stationary plate 10 are relatively rotatable, and are selectively held at specific angles. Thus, the assistant device 30 can be adjusted to a fine visual angle for the user on the passenger seat or the rear seat. The inside and outside positioning elements 12 & 24 may be recesses, and protrusions, such as teeth.</p> |
