AXLE BOX SUPPORTING DEVICE OF TRUCK FOR ROLLING STOCK

Japanese Patent JP3808713

B2

PROBLEM TO BE SOLVED: To easily adjust the height of a truck frame even in a non-dismantling condition in which a rolling stock body is placed on a truck, and to manufacture an axle box supporting device at a low cost.
SOLUTION: This axle box supporting device comprises an axle box 1 fitted to both ends of a wheel set via a bearing, an axle box supporting mechanism 5 for coupling the axle box 1 with the truck frame 4 while permitting the relative displacement in the vertical direction between the axle box 1 and the truck frame 4, and a coil spring 3 interposed between the axle box 1 and the truck frame 4 for supporting the truck frame 4. A notched part 1d with an open upper side in which a cylinder device 6 can be installed in a non-dismantling condition is provided at the placement position of the coil spring 3 at an upper end part of the axle box 1. In a normal condition, no cylinder device is installed, and the function for sealing compressive fluid in a lower axle spring seat and the axle box is unnecessary, and the lower axle spring seat and the axle box part can be manufactured at a low cost. When the height of the truck frame is adjusted, the cylinder device is installed, and the workability becomes excellent.

Koji Asano
Toyoharu Miki
Yuzo Kakuda

JP2001052140A

August 16, 2006

February 27, 2001

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East Japan Railway Company
SUMITOMO METAL INDUSTRIES,LTD.

B61F5/30; B61F5/36; (IPC1-7): B61F5/30

JP11099941A
JP7069211A
JP6329021A

Mizogami Mitsuyoshi
Tetsuya Mizogami
Yoshinori Iwahara

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