Title:
可変剛性打撃具
Document Type and Number:
Japanese Patent JP6603562
Kind Code:
B2
Abstract:
A variable stiffness striking implement, such as, for example, a ball bat typically used in baseball, softball, or rubber ball. The striking implement, preferably has a separate barrel and handle and includes a variable stiffness assembly which results in the user being able to adjust stiffness. This is accomplished by the user selecting a stiffness member having a desired hardness and inserting the selected stiffness around the handle and abutting the end of the barrel closest to the handle end and using a cap to hold the stiffness member in place, or, if desired by the user, the striking implement may be used without a stiffness member.
Inventors:
George W. Burger
James M Early
James M Early
Application Number:
JP2015239276A
Publication Date:
November 06, 2019
Filing Date:
December 08, 2015
Export Citation:
Assignee:
WILSON SPORTING GOODS COMPANY
International Classes:
A63B60/26; A63B59/51
Domestic Patent References:
| JP2011139856A | ||||
| JP2013508113A | ||||
| JP2011024718A | ||||
| JP2012096003A |
Foreign References:
| US7311620 | ||||
| US4951948 |
Attorney, Agent or Firm:
Kenji Sugimura
Yasuyuki Komatsu
Takahiro Sasaki
Yasuyuki Komatsu
Takahiro Sasaki