Abstract: To provide a bowling pin which exhibits a pin action of the bowling pin which is generated due to strong hitting of the ball with the bowling pin close to a pin action of a conventional bowling pin.

Abstract: An upper core 25 and a lower core 23 are set in a core material forming mold 21, a synthetic resin in a molten state is injected into a cavity 27 through a gate 26 and, thereafter, the core material which includes an upper hollow portion 5a having an upper opening 7 which opens upwardly and a lower hollow portion 5b having a lower opening 11 which opens downwardly is formed by molding, an upper cap 9, a lower cap 13 and a display plate 109 are mounted on the core material 3, a projecting portion 37 of the upper cap 9 is fitted into a recessed portion 37a of an upper mold 39 thus forming an upper engaging portion, a pin 31a of a lower mold 31 is fitted into a recessed portion 13a of the lower cap 13 thus forming a lower engaging portion, the core material 3 is vertically fixed to the inside of the cavity 28 while maintaining a gap 28a around the core material 3, and a molten resin is injected into the gap 28a through a gate 51 thus forming the skin portion 15 and integrally covering the upper cap 9, the lower

Abstract: The present invention provides a bowling pin which exhibits the excellent durability while satisfying conditions required on the bowling pin such as a weight and a dry sound which is generated at the time of hitting. A hollow portion which extends in the vertical direction is formed in a core material which constitutes a bowling pin. Upper and lower end portions of the hollow portion are opened, wherein one cap is fitted into an opening and another cap is fitted into a lower-side opening. The whole of the core material and the cap are almost covered with a surface skin portion and a portion of the core material where the surface skin portion is not provided is formed of two line portions and a dial portion. The surface skin portion is white, the line portions are red and the dial portion is black.

Abstract: The present invention provides a bowling pin which exhibits the excellent durability while satisfying conditions required on the bowling pin such as a weight and a dry sound which is generated at the time of hitting. A hollow portion which extends in the vertical direction is formed in a core material which constitutes a bowling pin. Upper and lower end portions of the hollow portion are opened, wherein one cap is fitted into an opening and another cap is fitted into a lower-side opening. The whole of the core material and the cap are almost covered with a surface skin portion and a portion of the core material where the surface skin portion is not provided is formed of two line portions and a dial portion. The surface skin portion is white, the line portions are red and the dial portion is black.