Title:
GROMMET AND RACKET
Document Type and Number:
Japanese Patent JP2017113124
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To increase repulsion performance of a ball at the time of striking.SOLUTION: A grommet (26) is structured by having a belt-like part (31) that extends in a prescribed direction and a cylinder part (32) that protrudes from one surface of the belt-like part to make a string (21) pass through. In the part that is the other surface of the belt-like part and that goes along the inner periphery of the cylinder part, a bulging part (41) is formed. The bulging part is formed in a shape bulging out from the other surface of the belt-like part, with the string folded at the bulging part. Between the adjacent cylinder parts, a plurality of projections (42) are formed which the string comes into contact with.SELECTED DRAWING: Figure 3
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Inventors:
KAWABATA MASAHITO
OGAWA NAOTO
HANAWA RYOICHI
HIRAGA TORU
OGAWA NAOTO
HANAWA RYOICHI
HIRAGA TORU
Application Number:
JP2015249505A
Publication Date:
June 29, 2017
Filing Date:
December 22, 2015
Export Citation:
Assignee:
YONEX CO LTD
International Classes:
A63B49/022
Domestic Patent References:
JP2002537004A | 2002-11-05 | |||
JP2002282395A | 2002-10-02 | |||
JP2010104540A | 2010-05-13 |
Foreign References:
GB2259256A | 1993-03-10 | |||
FR2851925A1 | 2004-09-10 |
Attorney, Agent or Firm:
Hiroyoshi Aoki
Amada Masayuki
Masaaki Kitagawa
Amada Masayuki
Masaaki Kitagawa
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