Patent ID: 6070701
Filing Date: 2000-06-06
Classification: A47D,Y10T

Abstract:
A wheel device for a baby walker, being provided on a bottom surface of a chasis of said baby walker, and being comprised of:a first semi-sphere provided with a fixing portion adapted to be fixed on said bottom surface of said chasis of said baby walker;a second semi-sphere exactly closely covering said first semi-sphere and rotating on the ground relative to said first semi-sphere, and forming with a receiving chamber in said first semi-sphere a spherical receiving space;a stop piece provided in said receiving space formed by said first semi-sphere and said second semi-sphere, a slide way is formed between said stop piece and the inner wall of said second semi-sphere;a roller provided on said slide way and contacting said inner wall of said second semi-sphere, when said wheel is rolled on the ground and accelerated to a predetermined speed, by the friction force between said roller and said stop piece and said second semi-sphere, said roller is moved toward a narrower area of said slide way, and is limited to the area between said second semi-sphere and said stop piece, so that said wheel gets the function of speed reducing as well as braking.