Title:
RUBBER BUSH FOR RAILWAY VEHICLE
Document Type and Number:
Japanese Patent JP2017082994
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To correspond to a plurality of vibration characteristics with minimum required change to enable commonization of a component and improvement of degree of freedom for design.SOLUTION: A rubber bush 1 for a railway vehicle includes an axial member 2, an external cylinder member 3 arranged coaxially outside the axial member 2, and a rubber elastic body 4 elastically connecting the axial member 2 and the external cylinder member 3. The rubber elastic body 4 includes liquid chambers 9, 9 in which fluid is sealed, at point symmetrical positions with the axial member 2 as a center, the axial member 2 includes a separate flow passage member 12 having a spiral orifice 14 communicating with the liquid chambers 9, 9, and thereby vibration characteristics can be changed by replacement of a flow passage member 12 with a different form of the orifice 14.SELECTED DRAWING: Figure 1
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Inventors:
IWATA HIDEAKI
Application Number:
JP2015214540A
Publication Date:
May 18, 2017
Filing Date:
October 30, 2015
Export Citation:
Assignee:
SUMITOMO RIKO CO LTD
International Classes:
F16F13/14; B61F5/30
Attorney, Agent or Firm:
Yoshiki Ishida
Kyoichi Ueda
Kyoichi Ueda