A semi-open one-piece tennis ball for teaching

A one-piece, semi-open technology, applied in ball games, sports accessories, etc., can solve problems that affect teaching efficiency, consume manpower or time, and achieve the effect of improving teaching efficiency and preserving coaches' physical fitness

Active Publication Date: 2022-01-11
HUNAN FIRST NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, during teaching, tennis is generally slapped. After the action is completed, either a special person will pick up the ball, or the ball will be picked up by oneself, which undoubtedly consumes more manpower or time, and affects teaching efficiency.

Method used

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  • A semi-open one-piece tennis ball for teaching
  • A semi-open one-piece tennis ball for teaching
  • A semi-open one-piece tennis ball for teaching

Examples

Experimental program
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Embodiment

[0044] see Figure 1 to Figure 3 , a semi-open one-piece tennis ball for teaching, comprising a ball 1, and also includes a wrist cover used with the ball 1, a magnetic rope 2 is connected between the wrist cover and the ball 1, and a pair of balls symmetrical about the center of the ball are arranged on the ball 1. The flaring groove 101 of the flaring groove 101 is provided with a thread groove 102 on the inner wall close to the center of the ball, and one end of the magnetic rope 2 is fixedly connected with a joint 3, and the joint 3 is threaded to the inside of the thread groove 102, and the wrist sleeve includes a sleeve 4 , the upper and lower ends of the sleeve 4 are fixedly connected with an elastic sleeve 5, the elasticity of the elastic sleeve 5 makes the entire wrist sleeve can be stably worn on the wrist ( figure 1 m represents the wrist), the inner diameter of the sleeve 4 is larger than the wrist size of an adult man, the side end of the sleeve 4 is provided with...

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PUM

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Abstract

The invention discloses a semi-open one-piece tennis ball for teaching, which belongs to the field of tennis teaching. A semi-open one-piece tennis ball for teaching includes a ball, and a wrist cover used with the ball. The gap between the wrist cover and the ball is Connected with a magnetic rope, the sphere is provided with a pair of flared grooves that are symmetrical about the center of the sphere, and the inner wall of the flared groove close to the center of the sphere is provided with a threaded groove, and one end of the magnetic rope is fixedly connected with a joint. The present invention connects the sphere through a magnetic rope Wristband, the wristband is worn on the wrist, so that the ball is in a semi-open state. On the one hand, it can realize the smooth slapping of the sphere and ensure the normal use of the sphere. On the other hand, after slapping the sphere out Afterwards, by operating the wristband, the sphere can be picked up on the spot, which not only saves time and effort, but also saves the coach's physical fitness. At the same time, the coach can continue to teach and explain during the automatic picking period, which greatly improves the teaching efficiency.

Description

technical field [0001] The invention relates to the field of tennis teaching, in particular to a semi-open one-piece tennis ball for teaching. Background technique [0002] Tennis is one of the ball games. The effective tennis court is a rectangle with a length of 23.77 meters, a width of 8.23 ​​meters for singles and a width of 10.97 meters for doubles. There is a net in the middle, each side of the game occupies one side of the court, and the players hit the ball with a tennis racket. [0003] In the current tennis teaching courses, most of the coaches degrade and demonstrate moves, and the students imitate them; or the coach feeds the ball, and the students return the ball, and at the same time cooperate with the explanation. Therefore, during teaching, tennis is generally slapped, and after the action is completed, either a special person will pick up the ball, or the ball will be picked up by oneself, which undoubtedly consumes more manpower or time, and affects teachi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A63B69/38A63B47/02
CPCA63B69/38A63B69/385A63B47/021
Inventor 孙华雷蕾孙侠
Owner HUNAN FIRST NORMAL UNIV
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