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Patent Searching and Data


Title:
BOWLING PIN, MANUFACTURING METHOD THEREOF, AND DIE SET
Document Type and Number:
Japanese Patent JP2004337586
Kind Code:
A
Abstract:

To provide a bowling pin which not only satisfies conditions of shape, weight, dry sound generated upon collision but also has superior durability without peeling off a skin part or a display part even when receiving impact or friction is given, a manufacturing method thereof, and a die set used therefor.

This bowling pin is provided with a core material 3 with a hollow part 5 formed of synthetic resin and the skin part 15 comprising synthetic resin with impact resistance higher than that of the core material 3. In the bowling pin, the synthetic resin of the core material 3 is preferably polypropylene and the synthetic resin formed into the surface of the core material is preferably polyamide resin.


Inventors:
SUZUKI SHINSUKE
Application Number:
JP2003435704A
Publication Date:
December 02, 2004
Filing Date:
December 26, 2003
Export Citation:
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Assignee:
HAMAMATSU KENMA KK
International Classes:
A63D9/00; (IPC1-7): A63D9/00
Domestic Patent References:
JPS6137275A1986-02-22
JPS4830540A1973-04-21
JP2002205316A2002-07-23
JPH0677781U1994-11-01
JPS49124183U1974-10-24
JPH0539304U1993-05-28
JPH0346992Y21991-10-04
Attorney, Agent or Firm:
Akio Ota