To aim at weight reduction for non-suspended weight while extreme weight saving is being aimed at by doing without a truck frame, and prevent an intermediate beam from being rotated to the pitching and yawing directions.
Let axle springs 5 and 6 disposed directly above bearing boxes 3 and 4 provided for both the end parts of a front and a rear wheel set 1 and 2, directly support the load of a body for a rolling stock 7. The front and rear, and right and left bearing boxes 3 and 3, and 4 and 4, are connected with an intermediate beam 8 by way of elastic bodies 9. Let the intermediate beam 8 be supported by the body 7 of the rolling stock through either of four elastic bodies 11 in total composed of two ones in the longitudinal direction, and of two ones in the right and left direction, or links. This constitution thereby can do without the truck frame so that extreme weight saving can be aimed at. Furthermore, non-suspended weight can be lightened, so that the trucks of the rolling stock excellent in high speed running performance can be obtained, and in addition, even if braking force is applied thereto, the intermediate beam will never be rotated in the pitching and yawing directions.
SHIMAMUNE RYOHEI
SATO TOMOYUKI
TOKUNAGA TOMOHITO
SUMITOMO METAL IND