| 摘要 |
A direction adjustment and an angle adjustment apparatus for a video display device are disclosed. The direction adjustment apparatus comprises an upper support and a lower support. The upper support has a bottom which has a plurality of cavities each of which accommodates a roller. The lower support is rotationally connected to the upper support. The lower support has at least a circular guide rail for seating and guiding the roller. The weight of the video display device is transmitted to the circular guide rail of the lower support through the upper support and the roller, and when the upper support is rotated as a result of the direction adjustment of the video display device, the roller is rolling within the circular guide rail of the lower support. The angle adjustment apparatus comprises an upper support, an angle adjustment device and a connecting device. The upper support has a top of a concave shape which has a plurality of cavities each of which accommodates a roller. The angle adjustment device has a bottom of a convex shape which is seated on the roller of the upper support and contacts with the roller in a form of rolling friction. The connecting device connects the angle adjustment device slidably with the upper support. The angle adjustment of the video display device is accomplished by adjusting the relative angular position of the angle adjustment device with respect to the upper support.
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