Cushion device for wheeled luggage

Abstract

A cushion device for a wheel of the wheeled luggage contains a seat member for installation to a bottom edge of the wheel luggage. The seat member contains an open compartment having a rotatable pin to a side of the opening of the compartment. The cushion device further contains a buffering member where the wheel of the wheeled luggage is rotatably mounted by the wheel's axle. The buffering member is housed inside the compartment of the seat member and hinged to the pin. A helix spring is provided inside the compartment between the seat member and the buffering member for absorbing the shock of the buffering member. The distance between the pin and the spring is longer than the distance between the pin and the axle of the wheel so that the spring will undergo on;y a fraction of the vibration force exerted on the wheel.

1 . A cushion for a wheeled luggage comprising:
 a seat member installed to a bottom edge of the wheeled luggage, said seat member having a L-shaped body, an open compartment formed between the two legs of said L-shaped body, and a rotatable pin located to a side of the opening of said compartment by running through a pair of holes of said seat member; and   a buffering member where said wheel of the wheeled luggage is rotatably mounted by the axle of said wheel, said buffering member being hinged to said pin and housed inside said compartment so that said buffering member is capable of vibrating inside said compartment as said wheel run over a bumpy surface;   wherein a spring is provided inside said compartment between said seat member and said buffering member so that the distance between said pin and said spring is longer than the distance between said pin and the axle of said wheel.   
     
     
         2 . The cushion device according to  claim 1 , wherein the vertical leg of said L-shaped body of said seat member forms a wedged shield in front of said buffering member. 
     
     
         3 . The cushion device according to  claim 1 , wherein said pin has a cap at one end having a larger aperture than that of said holes; and a removable block locks said cap to said seat member. 
     
     
         4 . The cushion device according to  claim 3 , wherein a rail is provided next to one of said holes; said removable block is slid down said rail to lock said cap.