Wheel center distance variable axle of trailer

Abstract

The invention provides variable-tread axles of trailer, in the state of freely advancing and retreating of inside axle relative to outside axle and in the variable-tread axles, realizing stopping the rotation of inside axle and needing no spline to position vehicle at the same time, in addition, realizing enlarging the widening amount of the tread. It has: the outside axle supported on the bodywork by plate springs, the inside axle supporting the wheel, the hydraulic cylinder device driving the inside axle in the axial direction and the locking device fixing the inside axle..

Description

technical field [0001] The invention relates to an improved wheelbase variable axle whose wheelbase can be widened. Background technique [0002] In conventional trailers, such as semi-trailers used for transporting vehicles, the vehicles to be transported pass between the rear wheels of the trailer and are stacked on a springboard for loading. [0003] Thus, the width of a stackable car is limited by the track of the rear wheels of the trailer. Generally, the maximum width of a stackable car is 170 cm. [0004] In this regard, cars with a width of more than 170 cm were transported by themselves in the past. In recent years, these large cars are expected to be transported by trailers. In addition, high-end cars that are passenger cars themselves also tend to have wider widths. [0005] In response to this, conventionally, as shown in FIG. 14 , there has been proposed a method capable of widening the track of the rear wheels of the trailer. [0006] That is, the rear axle 1...

AI Technical Summary

Problems solved by technology

Therefore, when the leaf spring is coupled to the vehicle body, it only receives a load in the vertical direction, and in order to receive the load in the front-rear direction of the vehicle body, it is necessary to provide a push rod for axle positioning.

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