Title:
DETERMINATION PART FORMATION DEVICE FOR FOUL JUDGEMENT PLATE
Document Type and Number:
Japanese Patent JP2018198935
Kind Code:
A
Abstract:
To allow even a person who is not an expert to easily and correctly form a determination part according to a competition rule, for achieving fairness of foul determination.SOLUTION: A determination part formation device for foul judgement plate forms a determination part 20 comprising: a main body part 22 being formed of clay provided on a recess 15 of a plate body 10 of a foul judgement plate F and having an inclined plane 21 filled in the recess 15 and cut so as to have a prescribed angle θ; and a coating part 23 continuous to the main body part 22 and having a prescribed width d and being flush to a top surface 11 of the plate body 10. A crown body 30 attached to the plate body 10 has an open hole 34 corresponding to the inclined plane 21 of the determination part 20 and from which the clay adhering to the recess 15 of the plate body 10 is exposed, and a periphery of the surface on which the open hole 34 is formed of the crown body 30 is formed as a guide surface 35 to which a spatula K for removing a surplus part of the clay protruded from the open hole 34 slides and contacts, and the surplus part of the clay protruded from the open hole 34 is removed by the spatula K for forming the determination part 20.SELECTED DRAWING: Figure 2
Inventors:
MIYAGAWA ISAO
MIYAGAWA KOJI
MIYAGAWA KOJI
Application Number:
JP2018102121A
Publication Date:
December 20, 2018
Filing Date:
May 29, 2018
Export Citation:
Assignee:
MIYAGAWA ISAO
MIYAGAWA KOJI
MIYAGAWA KOJI
International Classes:
A63B71/02; A63C19/00
Attorney, Agent or Firm:
Yusaku Maruoka