Title:
SUSPENSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/148850
Kind Code:
A1
Abstract:
A suspension device from which problems involved in conventional dampers and rubber members are eliminated. A suspension device (101) is provided, for example, with a damper (50), a suspension spring (60), an upper seat (70), and a spring (1). The spring (1) is an elastic member disposed between the upper end of a piston section (51) and the lower surface of the upper seat (70) and is subjected to a load from the damper (50). Hysteresis does not occur in the load characteristics of the spring (1), and as a result, the dynamic spring constant of the spring (1) can be reduced. This can reduce the transmission of vibration in a high-frequency band and a small amplitude region. Also, in the spring (1), the body section (10) functions as a disc spring section. This increases the spring constant of the damper (50) in the vertical direction along the axis thereof to in turn increase the rigidity in the vertical direction along the axis. As a result, driving comfort can be improved and driving stability can be ensured.
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Inventors:
ITO, Hidemasa (10, Fukuura 3-chome, Kanazawa-ku, Yokohama-sh, Kanagawa 04, 〒2360004, JP)
伊藤 秀雅 (〒04 神奈川県横浜市金沢区福浦３丁目１０番地 日本発條株式会社内 Kanagawa, 〒2360004, JP)
TOMINAGA, Jun (10, Fukuura 3-chome, Kanazawa-ku, Yokohama-sh, Kanagawa 04, 〒2360004, JP)
伊藤 秀雅 (〒04 神奈川県横浜市金沢区福浦３丁目１０番地 日本発條株式会社内 Kanagawa, 〒2360004, JP)
TOMINAGA, Jun (10, Fukuura 3-chome, Kanazawa-ku, Yokohama-sh, Kanagawa 04, 〒2360004, JP)
Application Number:
JP2011/061512
Publication Date:
December 01, 2011
Filing Date:
May 19, 2011
Export Citation:
Assignee:
NHK SPRING CO., LTD. (10 Fukuura 3-chome, Kanazawa-ku Yokohama-sh, Kanagawa 04, 〒2360004, JP)
日本発條株式会社 (〒04 神奈川県横浜市金沢区福浦３丁目１０番地 Kanagawa, 〒2360004, JP)
ITO, Hidemasa (10, Fukuura 3-chome, Kanazawa-ku, Yokohama-sh, Kanagawa 04, 〒2360004, JP)
伊藤 秀雅 (〒04 神奈川県横浜市金沢区福浦３丁目１０番地 日本発條株式会社内 Kanagawa, 〒2360004, JP)
日本発條株式会社 (〒04 神奈川県横浜市金沢区福浦３丁目１０番地 Kanagawa, 〒2360004, JP)
ITO, Hidemasa (10, Fukuura 3-chome, Kanazawa-ku, Yokohama-sh, Kanagawa 04, 〒2360004, JP)
伊藤 秀雅 (〒04 神奈川県横浜市金沢区福浦３丁目１０番地 日本発條株式会社内 Kanagawa, 〒2360004, JP)
International Classes:
B60G15/06; B60G11/16; F16F1/32; F16F9/32
Attorney, Agent or Firm:
SUENARI, Mikio (Asaco Kyobashi Building 3rd floor, 6-13 Kyobashi 1-chome, Chuo-k, Tokyo 31, 〒1040031, JP)
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Claims:
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