Patent ID: 7962999

Claim:
A wheel suspension mechanism comprising: an absorber including an outer sleeve, a support spindle rotatably received in the outer sleeve and the support spindle rotated and reciprocally moved relative to the outer sleeve, the support spindle having an annular flange radially extending from a middle section thereof to divide the support spindle into a first section and a second section, a flexible member compressively sleeved on the first section of the support spindle and abutting against the annular flange of the support spindle for providing a cushion effect, the second section of the support spindle extending through a bottom of the outer sleeve; and a wheel assembly connected to the second section of the support spindle of the absorber and the wheel assembly rotatably slanted relative to the absorber for adapting to mesh with an uneven rail, the wheel assembly having a connecting set connected to a distal end of the second section of the support spindle, at least one shaft laterally mounted to the connecting set, the at least one shaft having a stopper radially extending therefrom to divide the at least one shaft into a first portion and a second portion, the first portion mounted to the connecting set, a wheel rotatably mounted to the second portion of the at least one shaft, a width of the wheel being smaller than a length of the second portion of the at least one shaft such that the wheel being axially moveable relative to the at least one shaft.