Buggy e.g. four wheeler buggy, has four wheels, where four wheels are used for driving operation in one of modes of operation of chassis and only three wheel or four existing wheel is used for driving operation, during another mode

摘要

The buggy has four wheels (7, 8, 17) whose chassis with a mechanism is changeable between two modes of operation. Two different track widths at front and rear axles are enabled, and four wheels are used for driving operation in one of the modes of operation. One of the track width is changeable in comparison with the mode of operation or only three wheel or four existing wheel are used for driving operation, during another mode.