ATE70200T1 - DEVICE FOR CHANGING THE WEIGHT, MOMENTUM OF INERTIA OR CENTER OF GRAVITY OF BALL RACKET. - Google Patents
DEVICE FOR CHANGING THE WEIGHT, MOMENTUM OF INERTIA OR CENTER OF GRAVITY OF BALL RACKET.Info
- Publication number
- ATE70200T1 ATE70200T1 AT86200617T AT86200617T ATE70200T1 AT E70200 T1 ATE70200 T1 AT E70200T1 AT 86200617 T AT86200617 T AT 86200617T AT 86200617 T AT86200617 T AT 86200617T AT E70200 T1 ATE70200 T1 AT E70200T1
- Authority
- AT
- Austria
- Prior art keywords
- weight
- inertia
- gravity
- momentum
- changing
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
- A63B60/02—Ballast means for adjusting the centre of mass
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Golf Clubs (AREA)
- Testing Of Balance (AREA)
- Telescopes (AREA)
- Toys (AREA)
- Vibration Prevention Devices (AREA)
Abstract
Device for varying the weight, the moment of inertia and/or the centre of gravity of a racket, comprising interchangeable weight elements (8) designed in order to be blocked in the cylindrical bodies (4) passing through the frame (1) of a racket and intended to protect the strings at the point where the latter pass through the frame (1) of the racket. <IMAGE>
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE0/215021A BE902428A (en) | 1985-05-14 | 1985-05-14 | Racquet frame receiving weighted elements - has band with hollows in top in which tenons in weighted elements fit, with strings passing through hollow between them |
EP86200617A EP0201953B1 (en) | 1985-05-14 | 1986-04-14 | Device for varying the weight, the moment of inertia at the course of gravity of a racket |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE70200T1 true ATE70200T1 (en) | 1991-12-15 |
Family
ID=3843888
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT86200617T ATE70200T1 (en) | 1985-05-14 | 1986-04-14 | DEVICE FOR CHANGING THE WEIGHT, MOMENTUM OF INERTIA OR CENTER OF GRAVITY OF BALL RACKET. |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0201953B1 (en) |
JP (1) | JPS6226083A (en) |
AT (1) | ATE70200T1 (en) |
DE (1) | DE3682817D1 (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4858928A (en) * | 1986-06-10 | 1989-08-22 | Yamaha Corporation | Racket frame |
US4889337A (en) * | 1988-06-03 | 1989-12-26 | Fin Sports Limited | Racquet shock absorbing device |
US5054780A (en) * | 1990-08-30 | 1991-10-08 | Dennis Chen | Weight adjustable tennis racquet |
US5062634A (en) * | 1990-08-31 | 1991-11-05 | Wilson Sporting Goods Co. | Squash racket |
GB2249964A (en) * | 1990-11-21 | 1992-05-27 | Jeffrey Liu | An improved racket head protective strip |
GB2252504A (en) * | 1991-02-06 | 1992-08-12 | Jeffery Liu | A means for adjusting racket gravity center |
AU617286B3 (en) * | 1991-02-21 | 1991-10-04 | Jeffrey Liu | A protective strip for a racket |
JP4528393B2 (en) * | 1999-11-11 | 2010-08-18 | 株式会社河合楽器製作所 | keyboard |
US6988968B2 (en) * | 2000-12-27 | 2006-01-24 | Koji Okamoto | Grip end bottom weight and grip end bottom weighting structure |
US6935975B2 (en) | 2003-04-10 | 2005-08-30 | Wilson Sporting Goods Co. | Racquet with channeled handle for receiving racquet string |
CN101884833B (en) * | 2010-05-04 | 2011-11-23 | 厦门富帏复合材料有限公司 | Racket frame with balance weights |
GB2490951A (en) * | 2011-05-19 | 2012-11-21 | Dunlop Slazenger Internat Ltd | A grommet with an outer rim cover for a string |
JP2013132455A (en) * | 2011-12-27 | 2013-07-08 | Bridgestone Sports Co Ltd | Racket and racket product |
JP5982817B2 (en) * | 2011-12-27 | 2016-08-31 | ブリヂストンスポーツ株式会社 | racket |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2004609A (en) * | 1932-03-21 | 1935-06-11 | Johnston Harry | Tennis racket |
US3625512A (en) * | 1968-01-26 | 1971-12-07 | Peter A Latham | Extruded racket having two seamless hollow tubes formed with an interconnecting web |
US3642283A (en) * | 1970-02-02 | 1972-02-15 | Howard John Wilkens | Magnesium tennis racket with weighted throat piece |
FR2350118A1 (en) * | 1976-05-05 | 1977-12-02 | Lafourcade Paul | Tennis racket with filled tubular frame - has rectangular hollow section member bent into part head frame with two legs forming handle core |
DE2751171A1 (en) * | 1977-11-16 | 1979-05-17 | Reppert Ruediger Lothar Von Di | Weights for fixing to edge of tennis racket frame - improves balance and swing and increases striking force by generating greater centrifugal force |
GB2161391B (en) * | 1984-06-22 | 1988-01-20 | Dunlop Ltd | Games racket |
-
1986
- 1986-04-14 AT AT86200617T patent/ATE70200T1/en not_active IP Right Cessation
- 1986-04-14 EP EP86200617A patent/EP0201953B1/en not_active Expired - Lifetime
- 1986-04-14 DE DE8686200617T patent/DE3682817D1/en not_active Expired - Fee Related
- 1986-05-13 JP JP61109358A patent/JPS6226083A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
JPS6226083A (en) | 1987-02-04 |
DE3682817D1 (en) | 1992-01-23 |
EP0201953A1 (en) | 1986-11-20 |
EP0201953B1 (en) | 1991-12-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |