Title:
MANUFACTURING METHOD OF RIM WHEEL
Document Type and Number:
Japanese Patent JP3942484
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a manufacturing method of a rim wheel capable of high productive manufacturing of a rim wheel which suppresses vibrations transmitted to a car, improves a riding quality, reduces noises inside the car, and reduces possible causes of a failure such as defective welding, while assuring a high maneuvering stability.
SOLUTION: The method for manufacturing a rim wheel having a plurality of sub air chambers 6 arranged in a circumferential direction with equal spacing, and a communicating part 8 communicating a tire main air chamber and the sub air chambers, wherein the sub air chambers 6 and the communicating part 8 form a Helmholtz resonant absorber, includes the steps of (a) forming a vertical wall 3 as a cover member for the sub air chamber 6, when casting the rim wheel, (b) enlarging the vertical wall 3 outside in a radial direction by roll-forming, (c) folding the enlarged vertical wall 3 to form an upper wall 5 as a cover member, and (d) boring the communicating part 8 in the upper wall 5.
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Inventors:
Ryuro Uchida
Satoshi Kawamada
Satoshi Kawamada
Application Number:
JP2002141380A
Publication Date:
July 11, 2007
Filing Date:
May 16, 2002
Export Citation:
Assignee:
Bridgestone Corporation
International Classes:
B60B21/02; (IPC1-7): B60B21/02
Domestic Patent References:
| JP64039103U | ||||
| JP1115704A | ||||
| JP1249501A | ||||
| JP2000142007A | ||||
| JP2002079802A |
Attorney, Agent or Firm:
Ichiro Honda
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