Title:
シャトルコック
Document Type and Number:
Japanese Patent JP7267035
Kind Code:
B2
Abstract:
A shuttlecock 1 includes: a base portion 2; and a plurality of artificial feathers 10 arranged in an annular shape on the base portion 2. The artificial feathers 10 each includes a feather portion 12 and a feather shaft portion 14 that supports the feather portion 12. Letting a rotation direction be a counterclockwise direction centered about a central axis of the shuttlecock in a view from a side opposite to the base portion 2, a virtual straight line M is outward with respect to a virtual straight line N, on a downstream side of the feather shaft portion 14 in the rotation direction; the virtual straight line M is a line connecting a downstream end of the feather portion 12 in the rotation direction and a central portion of the feather shaft portion 14, and the virtual straight line N is a line connecting an upstream end of the feather portion 12 in the rotation direction and the central portion of the feather shaft portion 14.
Inventors:
Takumi Sakaguchi
Maeda Shogo
Maeda Shogo
Application Number:
JP2019035517A
Publication Date:
May 01, 2023
Filing Date:
February 28, 2019
Export Citation:
Assignee:
Yonex Co., Ltd.
International Classes:
A63B67/19
Domestic Patent References:
| JP2011239810A | ||||
| JP2014158603A |
Foreign References:
| CN102527009A | ||||
| EP2769754A1 | ||||
| US2830817 | ||||
| TW201808401A | ||||
| CN104001318A | ||||
| CN102164641A | ||||
| CN102671353A |
Attorney, Agent or Firm:
Patent Attorney Corporation Isshiki International Patent Office