JPS61103161U - - Google Patents

Info

Publication number
JPS61103161U
JPS61103161U JP1984189165U JP18916584U JPS61103161U JP S61103161 U JPS61103161 U JP S61103161U JP 1984189165 U JP1984189165 U JP 1984189165U JP 18916584 U JP18916584 U JP 18916584U JP S61103161 U JPS61103161 U JP S61103161U
Authority
JP
Japan
Prior art keywords
center
ball hitting
gravity
fluid
item
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP1984189165U
Other languages
Japanese (ja)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1984189165U priority Critical patent/JPS61103161U/ja
Publication of JPS61103161U publication Critical patent/JPS61103161U/ja
Pending legal-status Critical Current

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  • Toys (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本考案実施例のラケツトフレームの半
製品を示した斜視図、第2図aは本考案重心移動
部材の実施例、bはその異形例を示す長軸方向の
断面図、第3図はラケツトを上に挙げた際の流体
物流動の一態様を示す見取図、第4図は同じくラ
ケツトを横に振つた際の流体物流動の一態様を示
す見取図である。 10…ラケツトフレームの半製品、11…リン
グ枠、12…柄部、13…空洞部、14…重心移
動部材、15…円孔、16…流体物(移動物)、
17…シリコンラバーの仕切り部、19…タツプ
FIG. 1 is a perspective view showing a semi-finished racket frame according to an embodiment of the present invention, FIG. FIG. 3 is a sketch showing one mode of fluid flow when the racket is raised upward, and FIG. 4 is a sketch showing one mode of fluid flow when the racket is swung sideways. 10... Racket frame semi-finished product, 11... Ring frame, 12... Handle, 13... Cavity, 14... Center of gravity moving member, 15... Circular hole, 16... Fluid object (moving object),
17...Silicone rubber partition, 19...Tap.

Claims (1)

【実用新案登録請求の範囲】 (1) 高比重流体物又は移動物の移動又は流動に
より重心位置を変化可能にした内蔵する重心移動
部材と、この重心移動部材を長軸方向に沿つて内
蔵するよう打球用具フレームに形成した管状中空
部と、この中空部の開口側に位置する端部を封着
するようにタツプを一体成形された握部とを備え
たことを特徴とするボールゲームにおける打球用
具の改良装置。 (2) 上記重心移動部材は好ましくは所定の長さ
の管状密閉容器に所要の重さの流体物を内蔵した
ものよりなり、そこでの流体物の流動により重心
位置が変化されることを特徴とする上記第1項に
記載の打球用具の改良装置。 (3) 上記流体物を水銀とし、管状密閉容器は両
端部を加熱密閉することが好ましい上記第1項又
は第2項に記載の打球用具の改良装置。 (4) 上記重心移動部材はチユーブ材にて形成さ
れた中空打球用具フレーム内部の一部を仕切つて
なることを特徴とする上記第1項に記載の打球用
具の改良装置。
[Claims for Utility Model Registration] (1) A built-in center-of-gravity moving member whose center-of-gravity position can be changed by the movement or flow of a high-density fluid or a moving object, and this center-of-gravity moving member built in along the longitudinal direction. A ball hitting device for a ball game, comprising: a tubular hollow part formed in a ball hitting tool frame; and a grip part integrally formed with a tap so as to seal an end located on the opening side of the hollow part. Tool improvement equipment. (2) The center-of-gravity shifting member preferably comprises a tubular sealed container of a predetermined length containing a fluid object of a required weight, and is characterized in that the center of gravity position is changed by the flow of the fluid object therein. The ball hitting equipment improvement device according to item 1 above. (3) The improved device for a ball hitting tool according to item 1 or 2, wherein the fluid is mercury and the tubular airtight container is preferably heat-sealed at both ends. (4) The improved device for a ball hitting tool as set forth in item 1, wherein the center of gravity moving member partitions a part of the inside of a hollow ball hitting tool frame formed of a tube material.
JP1984189165U 1984-12-13 1984-12-13 Pending JPS61103161U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1984189165U JPS61103161U (en) 1984-12-13 1984-12-13

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1984189165U JPS61103161U (en) 1984-12-13 1984-12-13

Publications (1)

Publication Number Publication Date
JPS61103161U true JPS61103161U (en) 1986-07-01

Family

ID=30746623

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1984189165U Pending JPS61103161U (en) 1984-12-13 1984-12-13

Country Status (1)

Country Link
JP (1) JPS61103161U (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS532128A (en) * 1976-06-26 1978-01-10 Hiromitsu Naka Apparatus for adjusting balance of ball game equipment
JPS5558177A (en) * 1978-10-27 1980-04-30 Ibbott Jack Kenneth Racket
JPS5878679A (en) * 1981-09-04 1983-05-12 クナイスル・インタ−ナシヨナル・ゲ−エムベ−ハ− Weight balance mechanism of ball hitting tool, especiall, tennis racket or skash racket

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS532128A (en) * 1976-06-26 1978-01-10 Hiromitsu Naka Apparatus for adjusting balance of ball game equipment
JPS5558177A (en) * 1978-10-27 1980-04-30 Ibbott Jack Kenneth Racket
JPS5878679A (en) * 1981-09-04 1983-05-12 クナイスル・インタ−ナシヨナル・ゲ−エムベ−ハ− Weight balance mechanism of ball hitting tool, especiall, tennis racket or skash racket

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