Table tennis ball service machine

Abstract

A table tennis ball service machine includes a ball-collecting unit, a control valve and a ball service mechanism. The ball-collecting unit has a ball-collecting groove connected with ping pong table and having its rear side provided with a blocking net and its lower side connected with a ball-collecting tube and a ball-feeding tube. The control valve is positioned at the lower end of the ball-collecting tube for controlling dropping of balls. The ball service mechanism connected with the upper side of the ball-feeding tube includes a ball service tube, a blower, a support frame, a universal joint, a cam and a motor. The ball serving tube has its outer end extending through the blocking net and formed with an outlet and its rear side formed with an inlet communicating with the ball-feeding tube. Thus, the ball serving speed and the angle can be controlled.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] This invention relates to a table tennis ball service machine, particularly to one able to control ball serving speeds and angles. [0003] 2. Description of the Prior Art [0004] Taking exercises can not only promote health but also help alleviate mental tension and unhappiness. Table tennis is an activity involving a man's whole body. Playing table tennis is able to train the ability of thinking and judgment and the speed of reflexing action after thinking. In addition, playing table tennis is also able to train the reaction of the sense system and the function of the skeleton and the muscle system, strengthening the function of both the circulatory system and the respiration system. Since there are a variety of methods and tactics in playing table tennis; therefore, to play table tennis well and to be superior to others, a player has to practice the skills constantly. The technique of playing table tennis, such as s...

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