JPS59172469U

JPS59172469U - tennis practice equipment

Info

Publication number: JPS59172469U
Application number: JP6711383U
Authority: JP
Inventors: 杉田　允彦
Original assignee: Individual
Current assignee: Individual
Priority date: 1983-05-04
Filing date: 1983-05-04
Publication date: 1984-11-17
Also published as: JPS6217100Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図ａ、　　ｂおよび第２図ａ　”−ｃはいずれも従
来の練習板での練習状況の説明に共する図、第３図ａ、
　　ｂ乃至第７図ａ、　　ｂはいずれもこの考案の一実
施例を示すもので、第３図ａ、　　ｂおよび第４図ａ、
’　ｂは練習板の角度を変えた状態の練習装置の正面図
と側面図、第５図ａは回動機構で第５図・　　ｂのＡ−
Ａ断線による断面図、第５図すは第５図ａのＢ−Ｂ断線
による断面図、第６図ａ、　ｂおよび第７図ａ、　　ｂ
は共にこの装置の使用例の説明に供する図である。１・・・練習板、２・・・板材、３・・・固定部材、４
・・・支軸、５・・・練習コート、６・・・アンカーボ
ルト、７・・・支柱、８・・・キーピン、９・・・ウオ
ーム歯車、１０・・・ウオーム、１１・・・歯車筐、１
２・・・ハンドル、Ａ。Ｂ・・・練習装置。（−６）「［］／イ　　　　　　　　　　　　　　　　　　　　
　　　　　　　　　　　　　　　　　　　　　　　（θ
□ 第５図 −）　　　　　　　　　　　　（−４）−一　　　　　
　　　　　　　　　　　　　　　　　　　　　　　　　
　　　　１６　−Ａ°“’　　「Ｐ／／／／／／／／／／−／／／／／／ｖ／〈□Figure 1 a, b and Figure 2 a''-c are all diagrams used to explain the practice situation on a conventional practice board, and Figure 3 a,
Figures b to 7 a, b all show an embodiment of this invention; Figures 3 a, b and Figure 4 a,
' b is a front view and a side view of the training device with the angle of the training board changed, and Figure 5 a shows the rotation mechanism and A- in Figure 5 b.
A cross-sectional view taken along line A, Figure 5A, cross-sectional view taken along line B-B in Figure 5a, Figures 6a and b, and Figures 7a and b.
Both are diagrams for explaining an example of how this device is used. 1... Practice board, 2... Board material, 3... Fixed member, 4
...Spindle, 5...Practice coat, 6...Anchor bolt, 7...Column, 8...Key pin, 9...Worm gear, 10...Worm, 11...Gear Case, 1
2...Handle, A. B...Practice device. (-6) “[]/I
(θ
□ Figure 5-) (-4)-1

16 −A°“' “P ／／／／／／／／／−／／／／／／v／〈□

Claims

[Scope of utility model registration request]

a practice board in which one side of a plate having a flat surface is bent inward at a certain angle; a means for rotatably pivoting the practice board to a support; A tennis practice device comprising a rotation mechanism capable of rotating a practice board and maintaining the state after rotation, and capable of varying the angle formed between one surface of the practice board and the ground surface. .