BigPatents India

A retractable suspension system for a multi axle vehicle comprising a straight link [7] for carrying a driven axle [2] at its front end; an angled link [8] for carrying a tag axle [3] at its rear end; the rear end of the straight link [7] being rotatably connected to the fulcrum point of the angled link [8]; a support bracket [10] for connecting the straight link [7] to a frame [1] of the vehicle; a removable locking link [9] for connecting the front end of the angled link [8] to the straight link [7] so as to lock the movement between the straight link [7] and the angled link [8]; a first locking pin 15[1] for engaging one end of the locking link [9] with the straight link [7]; a second locking pin 15[2] for engaging the other end of the locking link [9] with the front end of the angled link [8]; said locking link [9] comprising a first locking position 16[1] for locking the straight link [7] and the angled link [8] thereby the tag axle [3] is in normal condition and a second locking position 16[2] for locking the straight link [7] and the angled link [8] thereby the tag axle [3] is in lifted condition; a screw-jack unit for lifting and lowering the tag axle [3].