Main Article Content
The purposes of this invention were: 1) to create the tennis shooter for tennis class and contribute the learner tennis’s skill, 2) to invent the tennis shooter with many functional purposes: remote control, angle adjustable, fix or random ball feeding, three tennis ball speed levels, 3) investigate electronic supply by battery with 12 hr. capacity and convenient to move around tennis court. The results of invented tennis shooter were as followed:
1. The average of tennis balls feeding were 15 balls per minute.
2. The programs of ball feeding to left or right court were random and manual modes.
3. The programs of ball feeding speeds were slow, medium and high (30, 50, 70 km/hr., respectively).
4. Angle adjustable (up-down) range was from 55.9-78º.
5. The average distance of feeding balls were 6, 13, and 17 meter
6. There was highly accuracy of ball feeding to target area: short ball at 92 %, middle court at 95%, and 94% at baseline.
The published article is a copyright of the Academic Journal of Thailand National Sports University. The passage appeared in each article in this academic journal is a perspective of each author which is not related to the journal. Each author is required to be responsible for all components of his/her own article. If there are any mistakes, each author must be responsible for those mistakes on his/her own.
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