A steering-wheel core eliminating or reducing the need to perform finishing processing after casting and decreasing a manufacturing cost even when the steering-wheel core is cast using a molten metal process. The steering wheel core includes a boss core portion coupled to a steering shaft, a rim core portion and a spoke core portion. The boss core portion forms a nut seat surface that makes contact with a nut when the nut is fastened to a distal end of the steering shaft. A recess is formed in the nut seat surface depressed toward a back surface side of the boss core portion. The recess is preferably provided in an annular form so as to surround the circumference of the nut seat surface.


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    Title :

    STEERING-WHEEL CORE


    Contributors:
    KITAJO KENSAKU (author) / KATO JUN (author)

    Publication date :

    2019-07-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B22C FOUNDRY MOULDING , Gießformen / B22D CASTING OF METALS , Gießen von Metallen / B62D MOTOR VEHICLES , Motorfahrzeuge



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