Patent ID: 7866453

Claim:
A swivelable trunk wheel assembly, comprising: a wheel frame having two accommodation portions respectively at two sides thereof; a guide hole arranged in said wheel frame; a push rod with one side thereof placed inside said guide hole; a press block with one end thereof coupled to said push rod and another end thereof pivotally coupled to said wheel frame; a hollow pivotal shaft arranged in said wheel frame, wherein two ends of said hollow pivotal shaft respectively extend out from said accommodation portions; a sleeve pipe placed inside said hollow pivotal shaft, wherein two ends of said sleeve pipe respectively protrude from two ends of said hollow pivotal shaft; two wheels respectively joined to two ends of said sleeve pipe and accommodated in said accommodation portions, wherein said wheels has a friction portion at a side near said wheel frame, and said push rod drive said press block to rub said friction portion and brake said wheels; and two rivets respectively passing through said wheels and joined to said sleeve pipe.