Title:
VEHICLE WHEEL MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2011/105135
Kind Code:
A1
Abstract:
Disclosed is a method of manufacturing a vehicle wheel (1) capable of preventing forming defects when forming an outer rim portion (8) and/or an inner rim portion wherein a sound damping airspace (25) is disposed, and of attaining an operating effect that minimizes, by way of the sound damping airspace (25), cavity resonances that arise in a tire interior airspace (102). After a separation groove (55), comprising a curved groove bottom surface (55a), is formed between a ring-shaped wall portion (53) and a partition portion (22), the ring-shaped wall portion (53) is bent toward a flange portion (10a) and the ring-shaped wall portion (53) is welded to the flange portion (10a), forming a sound damping airspace (25) in an outer rim portion (8) and/or an inner rim portion, which communicates via a connecting gap (61) that is defined on the basis of the separation groove (55). The method facilitates stable formation of the connecting gap (61), thereby allowing easing internal pressure increases caused when air within the sound damping airspace (25) thermally expands in the vulcanization step, as well as alleviating forming defects due to internal pressure increases.
Inventors:
IKEDA, Akihiro (C/O CENTRAL MOTOR WHEEL CO, LTD. 1-7 Maruta, Ozaki-cho, Anjo-sh, Aichi 04, 〒4460004, JP)
池田 明宏 (〒04 愛知県安城市尾崎町丸田１番地７ 中央精機株式会社内 Aichi, 〒4460004, JP)
池田 明宏 (〒04 愛知県安城市尾崎町丸田１番地７ 中央精機株式会社内 Aichi, 〒4460004, JP)
Application Number:
JP2011/050921
Publication Date:
September 01, 2011
Filing Date:
January 20, 2011
Export Citation:
Assignee:
CENTRAL MOTOR WHEEL CO., LTD. (1-7 Maruta, Ozaki-cho Anjo-sh, Aichi 04, 〒4460004, JP)
中央精機株式会社 (〒04 愛知県安城市尾崎町丸田１番地７ Aichi, 〒4460004, JP)
BRIDGESTONE CORPORATION (10-1, Kyobashi 1-Chome Chuo-k, Tokyo 40, 〒1048340, JP)
株式会社ブリヂストン (〒40 東京都中央区京橋一丁目１０番１号 Tokyo, 〒1048340, JP)
中央精機株式会社 (〒04 愛知県安城市尾崎町丸田１番地７ Aichi, 〒4460004, JP)
BRIDGESTONE CORPORATION (10-1, Kyobashi 1-Chome Chuo-k, Tokyo 40, 〒1048340, JP)
株式会社ブリヂストン (〒40 東京都中央区京橋一丁目１０番１号 Tokyo, 〒1048340, JP)
International Classes:
B60B21/02; B21D53/30
Attorney, Agent or Firm:
MATSUURA, Kitao et al. (KINSO BUILDING 7F, 18-19 Chiyoda 5-chome, Naka-ku, Nagoya-sh, Aichi 12, 〒4600012, JP)
Download PDF:
Claims:
Previous Patent: POSITION AND ORIENTATION ESTIMATION METHOD AND APPARATUS THEREFOR
Next Patent: SEMICONDUCTOR LASER DEVICE AND OPTICAL DEVICE
Next Patent: SEMICONDUCTOR LASER DEVICE AND OPTICAL DEVICE