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Title:
UNEQUALLY THICK RIM, AND METHOD OF MANUFACTURING THE RIM
Document Type and Number:
WIPO Patent Application WO/2004/067294
Kind Code:
A1
Abstract:
A rim material (11) for an unequally thick rim, an unequally thick rim (12) manufactured by using the rim material (11), and a method of manufacturing the rim (12) by using the rim material (11), the rim material (11) comprising first material portions forming axial R parts after the rim is formed and second material portions forming portions between the adjacent axial R parts after the rim is formed, wherein parallel parts (13) thick in wall thickness and having front and rear surfaces parallel with each other are formed in the first material portions, the widths of the parallel parts are assured wider than the maximum displacement amount of the corresponding R parts in the axial direction of the rim when the rim is formed, plate thickness change parts (14) are formed in the second material portions, and the surfaces of the plate thickness change parts are formed in a linear or a gentle curved shape.

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Inventors:
Abe, Kishiro c/o Topy Kogyo Kabushiki Kaisha (5-9 Yonbanch, Chiyoda-ku Tokyo, 102-8448, JP)
Watanabe, Tsuneo c/o Topy Kogyo Kabushiki Kaisha (5-9 Yonbanch, Chiyoda-ku Tokyo, 102-8448, JP)
Miyashita, Satoru c/o Topy Kogyo Kabushiki Kaisha (5-9 Yonbanch, Chiyoda-ku Tokyo, 102-8448, JP)
Hasegawa, Takenobu c/o Topy Kogyo Kabushiki Kaisha (5-9 Yonbanch, Chiyoda-ku Tokyo, 102-8448, JP)
Inada, Kenichi c/o Topy Kogyo Kabushiki Kaisha (5-9 Yonbanch, Chiyoda-ku Tokyo, 102-8448, JP)
Yokomizo, Shojiro c/o Topy Kogyo Kabushiki Kaisha (5-9 Yonbanch, Chiyoda-ku Tokyo, 102-8448, JP)
Tsukui, Shingo c/o Topy Kogyo Kabushiki Kaisha (5-9 Yonbanch, Chiyoda-ku Tokyo, 102-8448, JP)
Kato, Katsuki c/o Topy Kogyo Kabushiki Kaisha (5-9 Yonbanch, Chiyoda-ku Tokyo, 102-8448, JP)
Kuno, Morishi c/o Topy Kogyo Kabushiki Kaisha (5-9 Yonbanch, Chiyoda-ku Tokyo, 102-8448, JP)
Todoko, Katsunori c/o Topy Kogyo Kabushiki Kaisha (5-9 Yonbanch, Chiyoda-ku Tokyo, 102-8448, JP)
Hayashi, Kenji c/o Topy Kogyo Kabushiki Kaisha (5-9 Yonbanch, Chiyoda-ku Tokyo, 102-8448, JP)
Soma, Nobuyuki c/o Topy Kogyo Kabushiki Kaisha (5-9 Yonbanch, Chiyoda-ku Tokyo, 102-8448, JP)
Hara, Masaaki c/o Topy Kogyo Kabushiki Kaisha (5-9 Yonbanch, Chiyoda-ku Tokyo, 102-8448, JP)
Application Number:
PCT/JP2003/016019
Publication Date:
August 12, 2004
Filing Date:
December 15, 2003
Export Citation:
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Assignee:
TOPY KOGYO KABUSHIKI KAISHA (5-9 Yonbancho, Chiyoda-ku, Tokyo, 102-8448, JP)
Abe, Kishiro c/o Topy Kogyo Kabushiki Kaisha (5-9 Yonbanch, Chiyoda-ku Tokyo, 102-8448, JP)
Watanabe, Tsuneo c/o Topy Kogyo Kabushiki Kaisha (5-9 Yonbanch, Chiyoda-ku Tokyo, 102-8448, JP)
Miyashita, Satoru c/o Topy Kogyo Kabushiki Kaisha (5-9 Yonbanch, Chiyoda-ku Tokyo, 102-8448, JP)
Hasegawa, Takenobu c/o Topy Kogyo Kabushiki Kaisha (5-9 Yonbanch, Chiyoda-ku Tokyo, 102-8448, JP)
Inada, Kenichi c/o Topy Kogyo Kabushiki Kaisha (5-9 Yonbanch, Chiyoda-ku Tokyo, 102-8448, JP)
Yokomizo, Shojiro c/o Topy Kogyo Kabushiki Kaisha (5-9 Yonbanch, Chiyoda-ku Tokyo, 102-8448, JP)
Tsukui, Shingo c/o Topy Kogyo Kabushiki Kaisha (5-9 Yonbanch, Chiyoda-ku Tokyo, 102-8448, JP)
Kato, Katsuki c/o Topy Kogyo Kabushiki Kaisha (5-9 Yonbanch, Chiyoda-ku Tokyo, 102-8448, JP)
Kuno, Morishi c/o Topy Kogyo Kabushiki Kaisha (5-9 Yonbanch, Chiyoda-ku Tokyo, 102-8448, JP)
Todoko, Katsunori c/o Topy Kogyo Kabushiki Kaisha (5-9 Yonbanch, Chiyoda-ku Tokyo, 102-8448, JP)
Hayashi, Kenji c/o Topy Kogyo Kabushiki Kaisha (5-9 Yonbanch, Chiyoda-ku Tokyo, 102-8448, JP)
Soma, Nobuyuki c/o Topy Kogyo Kabushiki Kaisha (5-9 Yonbanch, Chiyoda-ku Tokyo, 102-8448, JP)
Hara, Masaaki c/o Topy Kogyo Kabushiki Kaisha (5-9 Yonbanch, Chiyoda-ku Tokyo, 102-8448, JP)
International Classes:
B60B21/00; B21D53/30; B21H1/04; B60B21/02; (IPC1-7): B60B21/02; B21D53/30
Attorney, Agent or Firm:
Tabuchi, Tsuneo (Room 1002, Hosokawa Bldg. 1-17, Akasaka 1-chom, Minato-ku Tokyo, 107-0052, JP)
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