The invention discloses a baby stroller frame which comprises bottom tubes, stroller handles, supporting pieces, connecting assemblies, front feet and rear feet. The front feet are provided with front wheel assemblies, and the rear feet are provided with rear wheel assemblies. The front ends of the bottom tubes and the front feet are pivoted at a first pivoting point; the front ends of the front feet and the lower ends of the stroller handles are pivoted at a second pivoting point; the upper ends of the supporting pieces and the stroller handles are pivoted at a third pivoting point; the supporting pieces and the bottom tubes are pivoted at a fourth pivoting point. The first pivoting point, the second pivoting point, the third pivoting point and the fourth pivoting point are connected to form a first four-bar linkage structure. The lower ends of the supporting pieces extend downwards to the positions below the bottom tubes, and are pivoted at a fifth pivoting point with the upper ends of the connecting assemblies. The lower ends of the connecting assemblies and the rear feet are pivoted at a sixth pivoting point; the rear feet and the rear ends of the bottom tubes are pivoted at a seventh pivoting point. The fourth pivoting point, the fifth pivoting point, the sixth pivoting point and the seventh pivoting point are connected to form a second four-bar linkage structure. The first four-bar linkage structure and the second four-bar linkage structure are in linkage to fold or unfold the front wheel assemblies and the rear wheel assemblies while the baby stroller frame is folded or unfolded.


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    Title :

    Baby stroller frame


    Contributors:
    LI JIANQUN (author)

    Publication date :

    2015-07-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B62B Von Hand bewegte Fahrzeuge, z.B. Handkarren oder Kinderwagen , HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS



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