发明名称 |
Bowling pin and manufacturing method of the same |
摘要 |
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. |
申请公布号 |
US7052406(B2) |
申请公布日期 |
2006.05.30 |
申请号 |
US20030735859 |
申请日期 |
2003.12.16 |
申请人 |
HAMAMATSU KENMA CO., LTD. |
发明人 |
SUZUKI NOBUFUMI |
分类号 |
A63D9/00;B29C45/16;B29C65/56 |
主分类号 |
A63D9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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