A laterally collapsible, user-pushed, four-wheeled rollator, stroller or the like has swiveling front wheels (11, 12) for steering, each mounted in a fork (8) with a vertical post (8b), with a toothed pulley (22) fixed thereto, rotatable in a bearing housing (21) fixed at the front end of right and left side frames (1,2). The two swiveling front wheels (11, 12) can swivel to any steering angle but always in unison with each other by virtue of a flexible toothed synchronous belt (13) extending between the toothed pulleys (22). The interior of each bearing housing (21) closely surrounds each toothed pulley (22) and the belt (13), preventing any disengagement of the belt from either toothed pulley (22) even when the belt becomes slack when the left and right side frames are folded towards each other. A synchronous chain (14) with sprockets (29) can also be used. Tether means (61, 62) pull the belt/chain rearwardly to a protected position during folding.


    Access

    Download


    Export, share and cite



    Title :

    Collapsible wheeled support or carrier


    Additional title:

    Zusammenklappbarer rollbarer Wagen
    Support à roues pliables


    Contributors:

    Publication date :

    2015-08-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    A61H PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY , Geräte für die physikalische Therapie, z.B. Vorrichtungen zum Lokalisieren oder Anregen spezieller Reflexpunkte am Körper / B62B Von Hand bewegte Fahrzeuge, z.B. Handkarren oder Kinderwagen , HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS



    COLLAPSIBLE WHEELED SUPPORT OR CARRIER

    KINDBERG STEFAN | European Patent Office | 2017

    Free access

    Collapsible wheeled support or carrier

    KINDBERG STEFAN | European Patent Office | 2017

    Free access

    COLLAPSIBLE WHEELED SUPPORT OR CARRIER

    KINDBERG STEFAN | European Patent Office | 2015

    Free access

    COLLAPSIBLE WHEELED SUPPORT OR CARRIER

    KINDBERG STEFAN | European Patent Office | 2019

    Free access

    Collapsible two-wheeled vehicle

    BABA KAZUHISA | European Patent Office | 2018

    Free access