JPS59174855U

JPS59174855U - racket

Info

Publication number: JPS59174855U
Application number: JP1983068782U
Authority: JP
Inventors: 湯川　和彦
Original assignee: 松下電工株式会社
Priority date: 1983-05-09
Filing date: 1983-05-09
Publication date: 1984-11-22

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

図は本考案の一実施例を示すもので、第１図はラケット
の斜視図、第２図は要部の分解斜視図、第３図は第２図
におけるＡ−Ａ部分断面図、第４図は打数検出表示回路
のブロック図、第５図は打数表示部の説明図である。１・・・第１フレーム、２・・・シャフト、３・・・グ
リフ　　　−プ、４・・・ガツトユニット、５・・・ガ
ツト、６・・・第２フレーム、７・・・ガツトガイド、
８・・・圧電素子、９・・・電極、１０・・・バネ、１
１・・・係合突片、１２・・・係合孔、１６・・・カウ
ンタ、１８・・・表示素子、Ｒ・・・ラケット　Ｒ／・
・・ラケット本体。The figures show one embodiment of the present invention, in which Fig. 1 is a perspective view of a racket, Fig. 2 is an exploded perspective view of main parts, Fig. 3 is a partial sectional view taken along line A-A in Fig. 2, and Fig. 4 is a perspective view of a racket. The figure is a block diagram of the number of strokes detection and display circuit, and FIG. 5 is an explanatory diagram of the number of strokes display section. DESCRIPTION OF SYMBOLS 1...First frame, 2...Shaft, 3...Glyph -p, 4...Gut unit, 5...Gut, 6...Second frame, 7...Gut guide,
8... Piezoelectric element, 9... Electrode, 10... Spring, 1
DESCRIPTION OF SYMBOLS 1... Engagement protrusion piece, 12... Engagement hole, 16... Counter, 18... Display element, R... Racket R/...
...Racket body.

Claims

[Scope of utility model registration request]

(1) A racket body including a loop-shaped first frame, a shaft, and a grip, and a string attached to a loop-shaped second frame that fits the first frame, and is detachably attached to the first frame. A racket characterized by being composed of a formed gut unit.

(2) The racket according to claim 1, which is a registered utility model, wherein a hit sensor for detecting the strain of the gut at the time of hitting is disposed in the folded part of the gut of the gut unit.

(3) The racket according to claim 1, which is a registered utility model, wherein a number-of-strokes display unit is provided at the grip end to display the number of strokes counted based on a detection signal of a hitting sensor.