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Title:
AXLE BOX SUSPENSION FOR RAILWAY VEHICLE, AND ELASTIC BUSH AXLE BODY
Document Type and Number:
WIPO Patent Application WO/2019/188949
Kind Code:
A1
Abstract:
An elastic bush has a recess which is provided in an inner portion, in a vehicle longitudinal direction, of the outer peripheral surface of the elastic bush and which is recessed outward in the vehicle longitudinal direction. A cylindrical section of an axle beam has a protrusion-shaped stopper which protrudes outward in the vehicle longitudinal direction from an inner portion, in the vehicle longitudinal direction, of the inner peripheral surface of the cylindrical section, and which is inserted into the recess with a gap provided between the stopper and the bottom surface of the recess. The wall thickness, in a radial direction, of the elastic bush at the recess is less than or equal to half the wall thickness, in the radial direction, of the portion of the elastic bush, which is adjacent to the recess.

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Inventors:
TAGA YUKITAKA
OKUMURA YASUFUMI
KOUNOIKE FUMIKAZU
Application Number:
JP2019/012428
Publication Date:
October 03, 2019
Filing Date:
March 25, 2019
Export Citation:
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Assignee:
KAWASAKI HEAVY IND LTD (Postcode6508670, JP)
International Classes:
B61F5/30; F16F1/387
Foreign References:
JP2017043142A2017-03-02
JPS51110222U1976-09-06
JP2014194255A2014-10-09
JP2014020487A2014-02-03
JP2017114365A2017-06-29
Attorney, Agent or Firm:
PATENT CORPORATE BODY ARCO PATENT OFFICE (3rd Fl, Bo-eki Bldg. 123-1, Higashimachi, Chuo-ku, Kobe-sh, Hyogo 31, 〒6500031, JP)
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