Patent ID: 6318750
Filing Date: 2001-11-20
Classification: B62B

Abstract:
A shock absorbing device for damping impact transmitted from a front wheel of a stroller which includes a seat frame having front and rear sides opposite to each other in a longitudinal direction, each of the front and rear sides having left and right ends opposite to each other in a first transverse direction relative to the longitudinal direction, the stroller further including a rear wheel axle disposed transverse to the longitudinal direction and having two lateral ends provided with two rear wheels which are rotatable about a first axis parallel to the rear wheel axle, a pair of rear legs each disposed to interconnect a respective one of the two lateral ends and a respective one of the left and right ends of the rear side, and a front wheel axle having two anchored ends and defining a second axis parallel to the first axis, the front wheel being mounted on the front wheel axle and being rotatable about the second axis, said shocking absorbing device comprising:left and right lever members, each including an anchoring end adapted to be secured to a respective one of the two anchored ends, an intermediate portion extending rearwardly and upwardly from said anchoring end so as to form an upward surface, and a weight end extending from said intermediate portion towards the seat frame;left and right front leg members, each including an upper end adapted to be connected to a respective one of the left and right ends of the front side, a middle portion extending forwardly and downwardly from said upper end so as to form a downward surface which faces said upward surface of a respective one of said left and right lever members in a second transverse direction, and an engaged end extending from said middle portion towards the front wheel axle;a pair of coupling members, each including a mounting wall extending in the second transverse direction for positioning said engaged end of a respective one of said left and right front leg members, and a pivoting pin disposed on said mounting wall with a pivoting axis transverse to the second transverse direction for mounting pivotally said intermediate portion of a respective one of said left and right lever members at a fulcrum proximate to said weight end such that a part of said intermediate portion proximate to said anchoring end is spaced apart from said engaged end in the second transverse direction; anda pair of biasing members, each disposed to bias said engaged end of a respective one of said left and right front leg members to move towards or away from said intermediate portion of a respective one of said left and right lever members in the second transverse direction when said biasing member is tensioned or compressed.