Title:
DART SHAFT, DART MEMBER, AND DART
Document Type and Number:
WIPO Patent Application WO/2020/121522
Kind Code:
A1
Abstract:
Provided is a dart shaft (701) to be joined to a flight (703) comprising a female screw on a cylindrically shaped end by a columnar flight joining part comprising: a shaft screw part (707) comprising a male screw continuing from one end to the other end of a barrel connecting part; and a flight screw accommodating part (709) continuing from the shaft screw part (707) to the other end. The flight (703) and the dart shaft (701) are joined by inserting the flight (703) into the dart shaft (701) and turning the male screw of the shaft screw part (707) and the female screw of the flight screw part (711). The flight (703) is rotatably joined to the dart shaft (701) by way of the axial length of the flight screw accommodating part (709) being longer than the axial length of the female screw.
Inventors:
PLUMMER GARRY (GB)
LEE ADRIAN (JP)
LEE ADRIAN (JP)
Application Number:
PCT/JP2018/046133
Publication Date:
June 18, 2020
Filing Date:
December 14, 2018
Export Citation:
Assignee:
TARGET SPORTS JAPAN LTD (JP)
TARGET SPORTS LTD (GB)
TARGET SPORTS LTD (GB)
International Classes:
A63B65/02
Foreign References:
| US4978130A | 1990-12-18 | |||
| JP5475911B1 | 2014-04-16 | |||
| US20160231092A1 | 2016-08-11 | |||
| JP2011110413A | 2011-06-09 | |||
| JP4350154B1 | 2009-10-21 | |||
| US5573251A | 1996-11-12 |
Attorney, Agent or Firm:
YAMAO, Norihito et al. (JP)
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