Title:
DAMPER RUBBER MEMBER AND TORSIONAL DAMPER
Document Type and Number:
Japanese Patent JP2018071703
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a damper rubber member having a large loss coefficient in a use standard temperature, and capable of preventing reduction of the loss coefficient from low temperature to high temperature, and a torsional damper having the damper rubber member.SOLUTION: For a damper rubber member 13 mounted between a hub 11 and an inertia ring 12 of a torsional damper 10, in a state before being mounted to the torsional damper 10, a loss coefficient (tanδi) in a use standard temperature is not less than 0.33, a loss coefficient ratio (tanδh/tanδi) of a loss coefficient (tanδh) in a high-temperature side use temperature to the loss coefficient (tanδi) in the use standard temperature is not less than 0.86, and a ratio (E'pl/E'pi) of a storage elastic modulus (E'pl) in a low-temperature side use temperature to a storage elastic modulus (E'pi) in the use standard temperature is not less than 6.9.SELECTED DRAWING: Figure 2
Inventors:
KATAGAI YUTO
TABEI MASARU
ANDO TERU
CHIBA TAKAAKI
TABEI MASARU
ANDO TERU
CHIBA TAKAAKI
Application Number:
JP2016213559A
Publication Date:
May 10, 2018
Filing Date:
October 31, 2016
Export Citation:
Assignee:
FUKOKU KK
International Classes:
F16F15/126; C08K3/04; C08L23/16; F16F15/12
Attorney, Agent or Firm:
Tsutsui International Patent Office
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