US 8,328,226 B2Granted

Direction changeable stroller

AssigneeWonderland Nurserygoods Company Limited

InventorsChen Xu-Hui, Chen Shun-Min

Life of this patent

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Abstract

A direction changeable stroller comprises a frame unit that includes a side leg frame and a push handle pivotable between front and rear positions. The side leg frame includes front and rear leg tubes, and front and rear wheel assemblies. Each of the front and rear wheel assemblies includes a wheel seat and a wheel. Each of the wheel seats includes a fixed portion connected fixedly to a corresponding one of the front and rear leg tubes, and a rotating portion connected pivotably to the fixed portion. The side leg frame further includes an automatic direction-limiting mechanism connected to the push handle such that, when the push handle is at a selected one of the front and rear positions, relative rotation between the fixed portion and the rotating portion of a corresponding one of the front and rear wheel seats is prevented.

A direction changeable stroller comprising a frame unit, said frame unit including at least one side leg frame and a push handle pivotable relative to said side leg frame between a front position and a rear position disposed behind the front position, said side leg frame including a pair of front and rear leg tubes, and a pair of front and rear wheel assemblies disposed respectively on bottom ends of said front and rear leg tubes, said front wheel assembly including a front wheel seat connected to said front leg tube, and a front wheel connected to said front wheel seat, said rear wheel assembly including a rear wheel seat connected to said rear leg tube, and a rear wheel connected to said rear wheel seat, each of said front and rear wheel seats including a fixed portion connected fixedly to a corresponding one of said front and rear leg tubes, and a rotating portion connected pivotably to said fixed portion, said side leg frame further including an automatic direction-limiting mechanism that is connected to said push handle such that, when said push handle is at a selected one of the front and rear positions, relative rotation between said fixed portion and said rotating portion of a corresponding one of said front and rear wheel seats is prevented,

wherein said front wheel seat further includes a front manual positioning member disposed on said fixed portion of said front wheel seat and engageable within said front positioning groove when said rotating portion of said front wheel seat is pivoted relative to said fixed portion of said front wheel seat to align said front positioning groove with said front manual positioning member, said front manual positioning member and said front automatic positioning member being disposed respectively at two sides of said bottom end of said front leg tube, said rear wheel seat further including a rear manual positioning member disposed on said fixed portion of said rear wheel seat and engageable within said rear positioning groove when said rotating portion of said rear wheel seat is pivoted relative to said fixed portion of said rear wheel seat to align said rear positioning groove with said rear manual positioning member, said rear manual positioning member and said rear automatic positioning members being disposed respectively at two sides of said bottom end of said rear leg tube.

Facts

Application

12/903,757Filed 13 Oct 2010

Priority

CN 2010 1 017930819 May 2010

Published

US 2011/0285110 A124 Nov 2011

Granted

11 Dec 2012

Term ends

Not estimatedThe source records don’t support an estimate.

Classification4 codes

B62B 7/042
Having more than one wheel axis; Steering devices therefor: steering devices
B62B 9/203
Handle bars; Handles: movable from front end to rear end position
B62B 2301/0463
With means restricting the rotation about that axis: by blocking the rotation at a position
B62B
Hand-propelled vehicles

Abstract

Claims12