| 摘要 |
An automated tee device uses air pressure through a tee to determine whether a ball is rested on the tee or whether a next ball should be supplied. When a ball is in a rest position on the tee, the airflow through a passage within the tee is inhibited. Consequently, by determining the current condition of airflow through the tee, it can be determined whether a ball is rested on the tee or whether a next ball should be supplied. In accordance with a second aspect of the invention, the tee can be adjusted to any height within a preselected vertical range. Upper and lower limit switches reverse the adjustment of a tee height in response to determining that the upper or the lower limit of the range has been reached. The automated tee device may be used in sports such as golf, baseball and softball.
|
