The invention discloses a waist and back pneumatic supporting device which is arranged between a supporting spring frame of a seat backrest and a backrest foaming cushion. The waist and back pneumatic supporting device comprises a forward flexible shielding plate, a top supporting airbag and a supporting back plate; the forward flexible shielding plate is arranged between the top supporting airbag and the backrest foaming cushion; the supporting back plate is arranged between the top supporting airbag and the supporting spring frame; the top supporting airbag is arranged between the supporting back plate and the forward flexible shielding plate. According to the waist and back pneumatic supporting device, a phenomenon that an original inflatable airbag is easy to sink into the back part of the backrest foaming cushion capable of being elastically deformed is changed. The previous convex inflatable airbag is ejected against the forward flexible shielding plate and is ejected against the back part of the backrest foaming cushion by the forward flexible shielding plate, so that a phenomenon that a seat surface of the seat backrest is not smooth enough is avoided. Compared with a pneumatic back supporting adjusting device of the top supporting airbag of a multi-grade airbag of a larger seat surface supporting route, the seat surface top supporting effect has the obvious smooth change. The invention further discloses an automobile seat.


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    Title :

    Waist and back pneumatic supporting device and automobile seat


    Contributors:

    Publication date :

    2015-06-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet



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