Title:
SHAFT, AND MANUFACTURING METHOD OF SHAFT
Document Type and Number:
Japanese Patent JP2019129882
Kind Code:
A
Abstract:
To provide a shaft capable of setting the center of gravity in accordance with a user's request, while securing rigidity of the shaft; and to provide a manufacturing method of the shaft.SOLUTION: There is provided a shaft 301 constituting a cue stick for billiard in combination with a bat. The shaft 301 includes a shaft body 351, and a balance weight 341 provided inside the shaft body 351. In the shaft, the balance weight 341 includes a cylindrical weight sleeve 342 provided with two or more weights 343 having each different specific gravity inside in parallel in the axial direction of the shaft.SELECTED DRAWING: Figure 9
Inventors:
NAKANO TAKUO
SHIMIZU TOSHIMITSU
SHIMIZU TOSHIMITSU
Application Number:
JP2018012379A
Publication Date:
August 08, 2019
Filing Date:
January 29, 2018
Export Citation:
Assignee:
BEES GROOVE INC
International Classes:
A63D15/08
Attorney, Agent or Firm:
Shiro Yasutaka
Kenji Kitahata
Kenji Kitahata