Central Japan Railway Company

Nippon Steel Corporation

Nippon Steel Sumitomo Metal Corporation

Nippon Sharyo, Ltd.

Tomohiro Otsuka

Seiji Kanamori

Jun Asano

Atsushi Sakaguchi

Takahiro Fujimoto

Naruo Miyabe

Takanori Kato

Kazutaka Asabe

Masanori Sawada

Yuiko Sakayama

Kazuaki Fujita

Yasuki Nakakura

Hironori Yokota

Nobuyuki Okada

Naoki Tokuda

Kousuke Sakaguchi

Masashi Sekiya

Koichiro Nanba

Takahiro Sasauchi

Tatsuya Mita

Tomonori Goto

A floating caliper brake device for a railroad vehicle includes: a support pin that is supported by a cylindrical portion of a support frame in such a manner as to be slidable in a direction X; a caliper; a first and second brake shoe; a pressurizing device that moves the first brake shoe back and forth; an elastic member that is expandable and contractible in the direction X; a stopper member that is immovable relatively to the cylindrical portion in the direction X; and a moving member that is frictionally engaged with the support pin so as to be slidable in the direction X.

Floating caliper brake device for railroad vehicle

A brake lining includes friction structures, back boards fastened to respective the friction structures, a base plate supporting the friction structures. Each of the friction structures includes two adjacent friction portions with a groove formed in the front surface in between, and a thin portion with a smaller thickness than thicknesses of the friction portions, the thin portion located in a position corresponding to the groove. Each of the friction structures is supported by the base plate on two support points located in the two friction portions respectively. The thin portion has a constant length, the length being equal to a maximum width of the friction portions and satisfying a condition that L/D is equal to or greater than 1.1, where D denotes the length of the thin portion and L denotes a distance between the two support points located in the friction portions.

Brake lining for a railway vehicle and disc brake equipped with the same

Brake lining for railroad vehicle

This sensor state determination system is a sensor state monitoring system capable of accurately determining whether or not a detecting sensor used with a railroad vehicle is in an abnormal state. This system includes: a detecting sensor capable of detecting a physical value acting upon the railroad vehicle; and an electronic control device. A monitoring sensor equivalent to the detection sensor is installed at a position equivalent to the position of the detection sensor. The electronic control device is provided with a determination means (coherence calculation section, state determination section) that computes, based on a first signal detected by the detecting sensor and a second signal detected by the monitoring sensor, a coherence value indicating a correlation between the signals. The electronic control device determines that the detecting sensor is in an abnormal state if the coherence value is smaller than a preset abnormality determination value.

Sensor state determination system

Growing community of inventors

Nagoya, Japan

Tomohiro Otsuka