Sumitomo Riko Company Limited

Kawasaki Jukogyo Kabushiki Kaisha

Shigehiro Otsubo

Takehiro Nishimura

Shunichi Nakao

Hiroyuki Fujii

Yasufumi Okumura

Jun Shirasaki

Hideki Fukumoto

Kei Kitagaki

Satoru Ogawa

Yusuke Ito

Yoshinori Mitsuze

Achieved is a rubber bushing for railroad trucks which has a novel structure and is capable of improving, for example, flame resistance to externally applied fire or the like without greatly degrading the basic properties demanded with respect to vibrational and load inputs. A rubber bushingused for railroad car trucks comprises a shaft-like inner memberand an outer member, disposed on the outer peripheral side of the inner memberat a remove therefrom, which are linked by a rubber elastic body. A cover partthat covers an exposed end surface, from the outside thereof, where the rubber elastic bodyis exposed to the outside between the axial ends of the inner memberand the outer member, is provided at an axial end of the rubber elastic bodyas a separate member from the rubber elastic body

Rubber bushing for railroad trucks

A load measuring device for a railcar bogie in which a vibrationproof rubber between an axle box and a bogie frame includes a vertical load fluctuation sensor in parallel with the vibrationproof rubber and configured to deform in conjunction with elastic deformation of the vibrationproof rubber in a vertical direction, the vibrationproof rubber supporting a downward load from the bogie frame. The vertical load fluctuation sensor changes an electric output by the deformation of the vertical load fluctuation sensor in conjunction with the elastic deformation of the vibrationproof rubber in the vertical direction.

Load measuring device for railcar bogie

A tubular elastic linkage device for axle beam for elastically linking a truck frame and an axle beam including: an inner axial member; two outer segments opposed in axis-perpendicular direction peripherally outside the inner axial member for attachment to a housing part on an axle-beam side; and a main rubber elastic body elastically connecting them. A pocket part opens in an outer peripheral face of the main rubber elastic body onto outside via a window penetrating one outer segment. A stopper supported by the inner axial member is disposed in the pocket part to face the housing part distantly via the window. Contact of the stopper with the housing part constitutes a displacement limitation mechanism between the inner axial member and the outer segments. The other outer segment has an aperture having the main rubber elastic body exposed outside via it.

Tubular elastic linkage device for axle beam

Growing community of inventors

Komaki, Japan

Shigehiro Otsubo