To provide a vehicular seat structure configured to suppress a submarine phenomenon at a collision of a vehicle from a front of a seat while securing an excellent getting on/off property with a simple structure.SOLUTION: When an occupant P is seated, a hip part 70 is positioned on a sealed liquid chamber 58 of a liquid sealing pack 46. The sealed liquid chamber 58 is gradually deformed by viscosity of liquid 60 to fill a gap in a storage part 44. By setting lowering amounts of an upper surface of the sealed liquid chamber 58 to be equivalent to lowering amounts of a conventional seat cushion pad, an excellent getting on/off property can be secured in a vehicular seat 10. While, at a front collision of a vehicle, by action of incompressibility and viscosity of the liquid 60, deformation resistance force F is generated in the liquid 60 in short time of 0.1 second or less such as a collision phenomenon, so that an external shape of the sealed liquid chamber 58 is nearly maintained in a seated state before the collision for short time within the collision phenomenon time. This can suppress backward rotation of the occupant P when viewed from a side of the pelvis of the occupant P and suppress the submarine phenomenon.SELECTED DRAWING: Figure 5

    【課題】簡単な構成で良好な乗降性を確保しつつ、シート前方からの車両衝突時にサブマリン現象を抑制する車両用シート構造を提供する。【解決手段】乗員Pが着座した際、臀部70が液封パック46の封入液体チャンバ58の上に位置する。封入液体チャンバ58は、収容部44内の間隙を埋めるように液体60の粘性によって徐々に変形する。乗員Pの着座による封入液体チャンバ58の上面の下降量を従来のシートクッションパッドと同等に設定すれば、車両用シート10に良好な乗降性を確保することができる。一方、車両の前面衝突時に、液体60の非圧縮性と粘性の作用により、衝突現象のような0.1秒以下の短時間においては液体60に変形抵抗力Fが発生し、封入液体チャンバ58の外形形状が衝突現象時間内の短時間、衝突前の着座状態の形状に略維持される。この結果、乗員Pの骨盤側面視後方回転が抑制されると共に、サブマリン現象が抑制される。【選択図】図5


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    Title :

    VEHICULAR SEAT STRUCTURE


    Additional title:

    車両用シート構造


    Contributors:

    Publication date :

    2019-03-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

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



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