SEAT BACK

• Main Authors: ITO HIROYUKI, SHIOTANI AKIRA, MURATA SEISHIRO
• Format: Patent
• Language: English; Japanese
• Published: 28.09.2015
• Subjects: BEDS; CHAIRS; COFFEE MILLS; DOMESTIC ARTICLES OR APPLIANCES; FURNITURE; HUMAN NECESSITIES; PERFORMING OPERATIONS; SEATS SPECIALLY ADAPTED FOR VEHICLES; SOFAS; SPICE MILLS; SUCTION CLEANERS IN GENERAL; TRANSPORTING; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDEDFOR; VEHICLES IN GENERAL

PROBLEM TO BE SOLVED: To provide a seat back which has rich cushioning property and fitness when a person sits down, and is excellent in recyclability and is especially excellent in weight saving.SOLUTION: The seat back includes: a seat back pad having a bent deformation part made of a synthetic resin foam to perform bend deformation backward when coming into contact with a body when the person sits down, and a support part located at vertical and horizontal edge parts of the bent deformation part; and a space part for enabling the bent deformation of the seat back pad. As the form of the support part located at the vertical and horizontal edge parts of the bent deformation part, there is a first form in which a seat back frame is disposed at three sides of the vertical and horizontal edge parts, a second form in which an approximately H-shaped seat back frame is disposed, a third form in which an approximately U-shaped seat back frame is disposed, or a fourth form in which the seat back frame is not disposed at all of the vertical and horizontal edge parts of the bent deformation part. 【課題】人の着座時にクッション性やフィット性に富み、リサイクル性に優れ、特に軽量化に優れるシートバックを提供することである。【解決手段】合成樹脂発泡体からなり、着座時に身体が当接すると後方に曲げ変形する曲げ変形部と、前記曲げ変形部の上下左右縁部に位置する支持部とを有するシートバックパッドと、前記シートバックパッドの曲げ変形を可能とする空間部とを備え、前記曲げ変形部の上下左右縁部に位置する支持部の形態として、前記左右上下縁部の３辺にシートバックフレームを配設する第一の形態、略Ｈ字状のシートバックフレームを配設する第二の形態、略Ｕ字状のシートバックフレームを配設する第三の形態、又は、前記曲げ変形部の上下左右縁部すべてにシートバックフレームを配設しない第四の形態とすることにより課題解決することができた。【選択図】図３