SEAT BELT DEVICE, AND METHOD FOR CONSTRAINING OCCUPANT BY THE SEAT BELT DEVICE

• Main Authors: UKITA SHINICHIRO, YAMAZAKI MASAYUKI, NAKAI TOSHIYUKI
• Format: Patent
• Language: English; Japanese
• Published: 23.06.2022
• Subjects: PERFORMING OPERATIONS; TRANSPORTING; VEHICLES IN GENERAL; VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR

To provide a seat belt device which can more surely protect an occupant.SOLUTION: In a seal belt device, a seat belt includes a belt-like width expansion part that is formed as at least a part of the seat belt and is brought into contact with a body of an occupant, and is deformed so as to expand the width from a normal state when the body of the occupant receives impact, in which thickness of the width expansion part in a width expansion state where the width expansion part is widened is equal to or less than the thickness of the width expansion part in the usual state before the width expansion part is widened, and a cross-sectional area of a connection part between the width expansion part in the width expansion state and a part excluding the width expansion part in the seat belt is at least equivalent to the cross-sectional area of the connection part in the normal state.SELECTED DRAWING: Figure 1 【課題】シートベルト装置において、より確実に乗員を保護できる技術を提供する。【解決手段】シートベルト装置において、シートベルトは、該シートベルトの少なくとも一部として形成され、乗員の身体に当接する帯状の拡幅部であって、乗員の身体が衝撃を受ける場合に通常状態から拡幅するように変形する拡幅部を含み、拡幅部が拡幅した拡幅状態における拡幅部の厚みは、拡幅部が拡幅する前の通常状態における拡幅部の厚み以下となり、且つ、拡幅状態における拡幅部とシートベルトのうち拡幅部を除く部位との接続部分の断面積は、通常状態における該接続部分の断面積と少なくとも同等である。【選択図】図１