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
Links
- 239000012530 fluid Substances 0.000 claims description 7
- 230000005484 gravity Effects 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims 1
- 229910052753 mercury Inorganic materials 0.000 claims 1
- 239000011265 semifinished product Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
Landscapes
- Toys (AREA)
Description
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)
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.
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)
| 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 |
-
1984
- 1984-12-13 JP JP1984189165U patent/JPS61103161U/ja active Pending
Patent Citations (3)
| 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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