Patent ID: 6382364
Filing Date: 2002-05-07
Classification: B60B,Y10T

Abstract:
A wheel for a baby walking cart, comprisinga support member connected to a lower part of said walking cart; said support member having an elongated hole; two wheel members, said wheel members being disposed on a respective side of said support member, turnable on an axle passed through said elongated hole of said support member; a tube-shaped slide member movably disposed in said elongated hole of said support member with said axle being passed therethrough; an elastic member being connected to a rear end of said elongated hole and a rear part of said slide member from two ends for biasing said slide member and said wheel members towards a front end of said elongated hole; and characterized by wavy slowing-down portions formed on an inner circular surface of each of said wheel members; said elastic member acting against a force resulting from a forward movement of said walking cart to force said wheel members to move rearwards for keeping said wavy slowing-down portions of said wheel members off slowing-down rods sticking out from two sides of said support member when a speed of said cart is lower than a amount; said force moving said wheel members towards said rear end of said elongated hole when a speed of cart exceeds said amount, making said wavy slowing-down portions contact said slowing-down rods of said support member to slow down said wheel members.