Title:
RUBBER BUSH FOR RAILWAY VEHICLE
Document Type and Number:
Japanese Patent JP2018168908
Kind Code:
A
Abstract:
To cope with a plurality of vibration characteristics with minimum required modification, to share components and improve degree of freedom for design.SOLUTION: A rubber bush 1 for a railway vehicle comprises a shaft core member 2, an outer cylindrical member 3 arranged coaxially outside the shaft core member 2, and a rubber elastic body 4 elastically connecting the shaft core member 2 and the outer cylindrical member 3, and the rubber elastic body 4 has liquid chambers 9, 9 positioned in a point-symmetric manner with respect to the shaft core member 2 and in which liquid is encapsulated. The shaft core member 2 has a core member 6 including an open hole 11 communicating the liquid chambers 9, 9 with each other and fitted into the shaft core member 2, and in the open hole 11 of the shaft member 6, a separate flow passage member 12 is provided.SELECTED DRAWING: Figure 1
Inventors:
IWATA HIDEAKI
Application Number:
JP2017065663A
Publication Date:
November 01, 2018
Filing Date:
March 29, 2017
Export Citation:
Assignee:
SUMITOMO RIKO CO LTD
International Classes:
F16F13/14; B61F5/08; B61F5/24
Domestic Patent References:
| JP2013044426A | 2013-03-04 | |||
| JP2010006339A | 2010-01-14 | |||
| JPS63308245A | 1988-12-15 | |||
| JPH0495341U | 1992-08-18 |
Foreign References:
| DE102010033811A1 | 2012-02-09 | |||
| DE10153921A1 | 2003-05-22 |
Attorney, Agent or Firm:
Yoshiki Ishida
Kyoichi Ueda
Kyoichi Ueda