Disclosed is a device 2 suitable for rocking prams, pushchairs or the like. The device comprises a motor 18, an axle 26 connected to the motor, a weight 30 eccentrically connected to the axle, and a speed controller connected to the motor. The speed controller drives the motor to rotate the weight at a set rocking frequency between 2 and 10Hz. The speed controller comprises a speed boost function that increases the speed of the motor above the set rocking frequency for an initial period of operation to overcome the inertia of the weight, with the speed reducing to match the set rocking frequency after the initial period. The speed controller may comprise an adjuster for varying the rocking frequency. The output shaft of the motor may comprise a drive pulley 22, and the weight may be connected to the axle via a driven pulley 24, said driven pulley having a larger diameter than the drive pulley.


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    Title :

    A rocking device


    Contributors:

    Publication date :

    2022-06-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    A47C Stühle , CHAIRS / A47D Kindermöbel , FURNITURE SPECIALLY ADAPTED FOR CHILDREN / B62B Von Hand bewegte Fahrzeuge, z.B. Handkarren oder Kinderwagen , HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS



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