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Title:
STRUCTURE FOR SUPPORTTING DRIVE DEVICE UNIT
Document Type and Number:
WIPO Patent Application WO/2003/004297
Kind Code:
A1
Abstract:
A support structure of pendulum mount type for supporting a drive device unit, by which the vertical floor vibration of a frequency band of 12 to 17 Hz is suppressed thereby to improve the riding comfort. Formula K2 = C·L1&sol L2·K1 is satisfied if one (RH) of mounts arranged on the right and left upper sides has a vertical dynamic spring constant (K1) whereas the other mount (LH) has a vertical dynamic spring constant (K2), the horizontal distances from the center of gravity (G) of the unit to the centers of the two mounts are (L1) and (L2), and a constant (C) is (no less than 1.3 and preferably less than 1.9). The vertical loss factor (Lf) of the mount (RH) has a peak frequency set at about 15 Hz.

Inventors:
Watatani, Naoki c/o Toyo Tire & Rubber Co. Ltd. (17-18, Edobori 1-chome, Nishi-k, Osaka-shi Osaka, 550-0002, JP)
Ishida, Terukazu c/o Toyo Tire & Rubber Co. Ltd. (17-18, Edobori 1-chome, Nishi-k, Osaka-shi Osaka, 550-0002, JP)
Sakata, Tesshin (3-22-3, Tamagawa-Gakuen Machida-shi, Tokyo, 194-0041, JP)
Application Number:
PCT/JP2001/005866
Publication Date:
January 16, 2003
Filing Date:
July 05, 2001
Export Citation:
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Assignee:
TOYO TIRE & RUBBER CO., LTD. (17-18, Edobori 1-chome Nishi-k, Osaka-shi Osaka, 550-0002, JP)
NISSAN MOTOR CO., LTD. (2 Takara-cho, Kanagawa-ku Yokohama-shi, Kanagawa, 220-8623, JP)
Watatani, Naoki c/o Toyo Tire & Rubber Co. Ltd. (17-18, Edobori 1-chome, Nishi-k, Osaka-shi Osaka, 550-0002, JP)
Ishida, Terukazu c/o Toyo Tire & Rubber Co. Ltd. (17-18, Edobori 1-chome, Nishi-k, Osaka-shi Osaka, 550-0002, JP)
Sakata, Tesshin (3-22-3, Tamagawa-Gakuen Machida-shi, Tokyo, 194-0041, JP)
International Classes:
B60K5/12; F16F7/10; F16F13/10; (IPC1-7): B60K17/12; F16F13/00
Foreign References:
JPH0411125U
JPH10109550A
JPS61220922A
GB2126546A
Other References:
See also references of EP 1410937A1
Attorney, Agent or Firm:
Tsutada, Akiko (9th Floor, Nissei Bingomachi Bldg. 7-10, Bingomachi 1-chome, Chuo-k, Osaka-shi Osaka, 541-0051, JP)
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