Special low-floor hinging type rail vehicle for railroad car

Abstract

The invention relates to a special low-floor hinging type rail vehicle for a railroad car. The special low-floor hinging type rail vehicle is in a structure that two compartments and three steering frames are arranged or at least one middle compartment and a middle steering frame are arranged in an extending manner. The special low-floor hinging type rail vehicle is characterized in that for the vehicle, rotatable end part steering frames (1) are always arranged below the front part and the rear part of the vehicle, and middle steering frames (2) are always arranged below each joint respectively; the joints are connecting parts between every two part segments of the vehicle; besides, two adjacent vehicle bodies of the vehicle are mounted on each middle steering frame(2) in a rotatable manner, each of the vehicle bodies is positioned in respective attachment points (3) , elements of primary and secondary elastic devices (5) are positioned in spaces between pairs of independent mounted wheels, and in particular, a motor, a gear case, a disk-shaped brake and a driver and a brake (6) of a track brake are positioned on the outer sides, which are opposite to the longitudinal axis of the vehicle, of the wheels, so that even a motherboard is on the steering frames, the motherboard is also at a low-standard level.

Description

technical field [0001] The invention relates to an arrangement of low-floor trams for passenger transport, especially designed for municipal traffic. Background technique [0002] Low-floor trams are manufactured to have a low floor over the entire length of the vehicle, while the height of this floor above the top of the track in the range of 350÷450 mm may be considered standard and a minimum standard passing width of 600 mm . In order to keep the floor height at this standard level, the bogies of these trams are usually equipped with broken axle beams with independently mounted pairs of wheels with a common geometrical axis of rotation. These axle beams with independently mounted wheels replace standard wheel sets (ie pairs of wheels pressed on a common axle) and are able to pass through the floor at low floor level, even between the wheels. [0003] However, in the case of using a rotatable bogie, when it rotates toward the vehicle body around the vehicle axis, the whe...

AI Technical Summary

Problems solved by technology

However, where bogies cannot be equipped with e.g. double spring suspensions, or where these bogies are not equipped with drive mechanisms (patent IT21163A / 84), or where there is not enough space for such mechanisms although they could be equipped with drive mechanisms Where there are disc brakes and the bogie has only blocking brakes (patent IT1216453), the effort to maintain a low floor level on the bogie also causes space problems

Images