Title:
RAILROAD VEHICLE TRUCK
Document Type and Number:
Japanese Patent JP2022011363
Kind Code:
A
Abstract:
To provide a railroad vehicle truck capable of reducing noise due to solid propagation sound inside a car by suppressing excitation to a truck frame from a main motor.SOLUTION: A railroad vehicle truck includes a truck frame, a forward main motor and a backward main motor respectively arranged on a forward position and a backward position of the truck frame, a forward wheel shaft and a backward wheel shaft respectively arranged on the forward position and the backward position of the truck frame, a forward driving device transmitting rotational force generated by the forward main motor to the forward wheel shaft, and a backward driving device transmitting rotational force generated by the backward main motor to the backward wheel shaft. The forward main motor and the backward main motor generate the rotational force in the opposite directions from each other. Any one of the forward driving device and the backward driving device has an inverse correction mechanism for inverting the direction of the rotational force and transmitting the force to the forward wheel shaft or the backward wheel shaft.SELECTED DRAWING: Figure 3
Inventors:
TOMITA NARIHIRO
TABE YOSUKE
YOSHIZAWA HISASHI
KONISHI KENTA
TABE YOSUKE
YOSHIZAWA HISASHI
KONISHI KENTA
Application Number:
JP2020112447A
Publication Date:
January 17, 2022
Filing Date:
June 30, 2020
Export Citation:
Assignee:
HITACHI LTD
International Classes:
B61C9/38
Attorney, Agent or Firm:
Patent Business Corporation Sunnext International Patent Office