Title:
次世代ウッドラケット
Document Type and Number:
Japanese Patent JP2014511744
Kind Code:
A
Abstract:
The invention relates to a tennis racket including a frame, delimiting a surface strung with cords and forming a screen, and a sleeve extending the frame outside the screen, characterized in that the frame consists of, at least within a peripheral region, a curved laminate comprising at least two layers of different materials adhered together, the laminate being shaped such that, in a closed cross-section of said peripheral region considered to be perpendicular to the neutral fiber of the frame, the center of mass of said cross-section is offset, relative to the surface center of gravity of said cross-section, toward the screen with a value at least equal to 5% of the width of said cross-section, said width being defined by the intersection of the cross-section and the plane of the screen.
More Like This:
| JP3742904 | Racket frame |
| WO/1990/001974 | SPORTS RACKET |
Inventors:
Galle, Alan
Zanko, Alan
Zanko, Alan
Application Number:
JP2014505703A
Publication Date:
May 19, 2014
Filing Date:
April 19, 2012
Export Citation:
Assignee:
LACOSTE
International Classes:
A63B49/02
Domestic Patent References:
| JPS5095040A | 1975-07-29 | |||
| JPS5095040A | 1975-07-29 | |||
| JPS5089132A | 1975-07-17 |
Foreign References:
| US4070019A | 1978-01-24 | |||
| US4070019A | 1978-01-24 |
Attorney, Agent or Firm:
Kenichi Morita
Kenjiro Yamaguchi
Hironori Nagayama
Kenjiro Yamaguchi
Hironori Nagayama