Patent ID: 7559560

Claim:
A magic rollator, including: a main support frame, which has two bushings each set on the right and left side of said main support frame respectively; two supporting pipes, each inserts in one of the bushings of the main support frame; two P-shaped armrests, each connects with one of the two supporting pipes; a front wheel assembly including a pair of wheels and a rear wheel assembly including a pair of wheels, each pair of wheels is connected at the front or back of the main support frame; and a seat component comprising a seat body and a folding mechanism, said seat component can be folded in the middle and is set between the left side and right side of main support frame wherein said main support frame has a supporting main body with a shouldered hole, in which there sets a hollow fitting axle, one end of which is fixed in the supporting main body by an active buckle fitting, the other end of said fitting axle is connected to said front-wheel assembly, wherein said active buckle fitting consists of a button with a splaying stop block mounted in said shouldered hole and a U-shaped snap spring with protruding member mounted in the hollow fitting axle, a block groove which is blocked by the splaying stop block is set on the supporting main body, the bottom of the button connects with the top of the snap spring, said fitting axle has a long aperture, the protruding member of the snap spring is embedded in the long aperture and extends into said shouldered hole.