Railway Technical Research Institute

Nippon Steel & Sumitomo Metal Corporation

Kayaba Industry Company, Ltd.

Fine Sinter Co., Ltd

Nippon Steel Corporation

Kyb Corporation

Yasushi Karino

Atsushi Sakaguchi

Tsutomu Suzuki

Kazutaka Asabe

Yoshiyuki Ookawara

Takahiro Fujimoto

Takeshi Nakano

Shin-ichi Saga

Takanori Kato

Satoru Nakano

Tokitake Okahira

Takashi Maejima

Kazumichi Kawasaki

Yoshihiro Tatsumi

Masanobu Nankyo

Mikio Yoneyama

Hajime Takami

Shin-Ichi Saga

This brake lining includes: a plurality of friction members which are arranged to be spaced from each other, each of the friction members having a front surface that is to face a sliding surface of a brake disk; a back board fastened to a back surface of each of the friction members; a base plate that supports each of the friction members at a region including a center portion of each friction member; and an elastic member disposed between the base plate and the back board, on a back surface side of each friction member. Two friction members that are adjacent to each other are taken as a pair, and the back board is fastened to each of the pairs of friction members. In each pair of friction members, the two friction members are arranged along the circumferential direction of the brake disk.

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

A brake disc of the present invention is a brake disc that stops the rotation of an axle when a brake pad is pressed on a surface of the brake disc, including a disc main body that is attached to a rotary body integrally rotating with the axle; and a plurality of build-up layers laminated on a surface of the disc main body, in which the build-up layers are laminated on the surface of the disc main body by means of laser metal deposition welding.

Brake disc and manufacturing method thereof

A disc brake for railway vehicles includes a brake disc fixed to a wheel or an axle of a railway vehicle and a brake lining configured to be pressed against a frictional surface of the brake disc by a brake caliper. The brake lining includes a plurality of friction members arranged to be spaced from each other, each of the friction members having a surface that faces the frictional surface of the brake disc, a metallic backing secured to back surfaces of the friction members, and a base plate supporting the friction members on the back surface side via spring members. The base plate is mounted to a brake caliper; wherein the friction members are provided in pairs with each pair being formed by two adjacent ones of the friction members, and the metallic backing is a one-piece member provided for each pair of the friction members.

Brake lining for railway vehicles and disc brake equipped with the same

A caliper brake device includes a brake shoe for exerting a friction force by sliding in contact with a disk, a caliper main body fixed to a vehicle and an actuator for pressing the brake shoe against the disk. The actuator includes an elastic film fixed to the caliper main body, a drive pressure chamber defined by the elastic film and supplied with a fluid, a valve introducing the fluid to the drive pressure chamber, and a piston interposed between the elastic film and the brake shoe. The fluid is supplied to the drive pressure chamber and the elastic film swells toward the brake shoe, whereby the piston brings the brake shoe into sliding contact with the disk. The valve introduces the fluid to the drive pressure chamber when the brake is applied while limiting the discharge of the fluid from the drive pressure chamber when the brake is released.

Caliper brake device for a vehicle

A brake caliper () includes a first caliper arm () that opposes a first frictional surface () of a vehicle wheel () and a second caliper arm () that opposes a second frictional surface () of the same. A movable brake pad () is supported by the first caliper arm () and applies a braking force to the first frictional surface (). A plurality of pistons () which drive the movable brake pad () in accordance with expansion of a diaphragm () provided in the brake caliper (), and a guide member () that guides displacement of the plurality of pistons () in a right-angle direction relative to the first frictional surface () are provided, and therefore the movable brake pad () applies an even braking force to the vehicle wheel () in cooperation with a fixed brake pad () fixed to the second caliper arm ().

Caliper brake device for vehicle

In a vehicle caliper brake device, a brake pad supported by a holder applies a frictional force to a braking surface as a diaphragm actuator is driven. The holder is supported by a caliper main body to be capable of displacing in a displacement direction of the brake pad. The diaphragm actuator includes a piston that is driven by a diaphragm to push the holder. The piston is fixed to the holder using a plurality of screws, and therefore the piston applies a pressing force to the brake pad uniformly without the need for guidance by a guide.

Caliper brake device

Growing community of inventors

Fussa, Japan

Yasushi Karino