PROBLEM TO BE SOLVED: To provide a vehicle seat with a seat belt device capable of suppressing the occurrence of the submarine phenomenon to a seated passenger by using a simple mechanism, while ensuring light weight and low cost.SOLUTION: A retractor 21 functions to rotate a winding shaft 21a to unreel a seat belt 20 if a load exceeding a predetermined load is applied to the retractor 21 from the seat belt 20 after the retractor 21 is temporarily locked. A first arm member 22 is rotatably attached to the winding shaft 21a, the first arm member 22 is locked to the winding shaft 21a by an inertia lock 24, and the first arm member 22 rotates along with the winding shaft 21a if an acceleration exceeding a predetermined acceleration is applied to the first arm member 22. In FIG. 1, a second arm member 23 coupled to the first arm member 22 rotates clockwise in proportion to the counterclockwise rotation of the first arm member 22. At this time, the seat belt 20 attached to one end of the second arm member 23 is attracted downward to constrain the waist of a seated passenger M.

    【課題】簡潔な機構を用いることで、着座者のサブマリン現象を抑止できるシートベルト装置を備えた乗物用シートを、軽量で安価なものとして提供する。【解決手段】リトラクタ21は、一旦ロック状態となった後、所定の荷重を上回る荷重がシートベルト20から加えられた場合は、巻取り軸21aを回転させてシートベルト20を繰り出す機能を有する。巻取り軸21aには、第1アーム部材22が回動可能に取り付けられ、第1アーム部材22は、所定の加速度を上回る加速度が加えられた場合は慣性ロック24によって巻取り軸21aに対しロックされて、巻取り軸21aとともに回動する。第1アーム部材22が図1において、反時計回りに回転すると、それと連結された第2アーム部材23は時計回りに回転する。そのとき、第2アーム部材23の一端部に取り付けられたシートベルト20が下側に引き込まれて着座者Mの腰部を拘束する。【選択図】図1


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    Title :

    VEHICLE SEAT WITH SEAT BELT DEVICE


    Additional title:

    シートベルト装置を備えた乗物用シート


    Contributors:

    Publication date :

    2015-10-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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