Title:
WASHER STRUCTURE
Document Type and Number:
Japanese Patent JP2023049022
Kind Code:
A
Abstract:
To provide a washer structure.SOLUTION: A grommet 42 is provided on a slit hole 41, one end of a washer structure corresponds to a bottom part of a vibration attenuation unit 3, a string 5, and a racket frame 4, and the other end of the washer structure has a first slide block 1 having a main joint surface 10, and a second slide block 2 provided on the other end of the first slide block. One end of the second slide block has a sub joint surface 20 and faces the main joint surface of the first slide block, and the other end of the second slide block corresponds to the racket frame and the string. The first slide block and the second slide block are formed in a trapezoid shape, and respectively include a triangular lower layer part provided on a lower side part of the first slide block, and a triangular base part 21 provided on a lower side part of the second slide block. By using the first and second slide blocks, stretch of the string, and a lead angle formed by the main joint surface and the sub joint surface, are provided, for filtering a specific amplitude and removing the specific amplitude.SELECTED DRAWING: Figure 1
Inventors:
CHEN WEI-RONG
Application Number:
JP2022152371A
Publication Date:
April 07, 2023
Filing Date:
September 26, 2022
Export Citation:
Assignee:
CHEN WEI RONG
International Classes:
A63B60/54
Attorney, Agent or Firm:
Kichi Toshio Kawa
Hiroshi Ichikawa
Hiroshi Ichikawa
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