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Patent Searching and Data


Title:
VIBRATION CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2012189148
Kind Code:
A
Abstract:

To provide a vibration control device capable of always exhibiting the expected vibration control function, by effectively preventing the occurrence of a surging phenomenon, without increasing weight of the device.

This vibration control device includes a cylindrical body 1, a core member 2 concentrically arranged with the cylindrical body 1 by deviating to one side of the axis of the cylindrical body 1, and body rubber 3 for connecting an inner peripheral surface of the cylindrical body 1 to the core member 2 over the whole periphery, forming an outer surface of the body rubber 3 in a truncated-cone shape of projecting to the core member 2 side in a longitudinal section including the body rubber axis, and preventing the transmission of input vibration to a vibration transmitting side member by mainly absorbing the input vibration in the axial direction from a vibration generating side member by shearing deformation of the body rubber 3. The body rubber 3 is constituted by integrally fixing mutual two kinds of rubber elastomers 3a and 3b mutually different in rubber hardness in the peripheral direction of the cylindrical body 1.


Inventors:
NAGASHIMA YASUYUKI
SAITO MASARU
Application Number:
JP2011000053359
Publication Date:
October 04, 2012
Filing Date:
March 10, 2011
Export Citation:
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Assignee:
BRIDGESTONE CORP
International Classes:
F16F13/18; F16F15/08
Domestic Patent References:
JPH0722142U1995-04-21
JPH1026162A1998-01-27
Attorney, Agent or Firm:
冨田 和幸
大串 賢
杉村 憲司