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    • 13. 发明申请
    • BACKREST DEVICE IN A CHAIR
    • 椅子背后的装置
    • US20090127914A1
    • 2009-05-21
    • US12092290
    • 2006-11-02
    • Ryo IgarashiHiroaki TsukijiHiroshi Masunaga
    • Ryo IgarashiHiroaki TsukijiHiroshi Masunaga
    • A47C7/40
    • A47C7/40A47C7/44
    • A backrest device for a chair, in which a backboard is easily flexible without a reduction in its strength, thus making the chair comfortable to sit on. The lower ends of both right and left sides of the back frame are supported at both sides at the back of a leg body, and the flexible back board is formed on the inside of rear frames. A large number of openings are formed in the backboard so as to be close to each other in the top-bottom and left-right directions. Between openings adjacent to each other in the left-right direction, there is formed a connection section continuing in the top-bottom direction, and the dimension in the front-back direction of the connection section is made larger than the dimension in the left-right direction of the connection section.
    • 一种用于椅子的靠背装置,其中背板容易柔性,而不会降低其强度,从而使椅子舒适地坐下。 后框架的左右两侧的下端在腿体的后方的两侧被支撑,柔性背板形成在后框架的内侧。 在背板上形成有大量的开口,以便在顶部和左右方向彼此靠近。 在左右方向上彼此相邻的开口之间形成有在上下方向上连续的连接部,使连接部的前后方向的尺寸大于左右方向的尺寸, 连接部分的正确方向。
    • 17. 发明申请
    • CHAIR BACKREST
    • 椅子背
    • US20110204694A1
    • 2011-08-25
    • US13126731
    • 2009-10-28
    • Ryo IgarashiKen Nakayama
    • Ryo IgarashiKen Nakayama
    • A47C7/36A47C7/40A47C7/44
    • A47C7/40A47C7/446A47C7/46
    • A chair backrest in which a frame-like back frame is covered with a bag-like upholstering material having an open lower end in a state of tension, the back frame being formed by connecting a pair of left and right side portion frames, which extend in an up and down direction, together at upper ends and lower ends thereof by an upper frame and a lower frame which extend in the left and right direction, wherein intermediate portions in the left and right direction of the upper frame and the lower frame are connected to each other by an intermediate frame which is situated behind the both side portion frames and is extended in the up and down direction, thereby causing an intermediate portion of a rear surface portion of the upholstering material to project rearward. According to such a backrest, when a person sitting on the chair leans against the backrest, the reaction force of the upholstering material does not vary to an extreme extent during the leaning action, and a rearward recess amount of the upholstering material of the backrest in response to a load can be sufficiently secured, thereby obtaining a comfortable sitting sensation.
    • 一种椅背靠背,其中框状的后框架被具有处于张紧状态的开放下端的袋状装饰材料覆盖,后框架通过连接一对左右侧部框架而形成, 在上下方向上,通过上框架和下框架在上下方向一起在左右方向上延伸,其中上框架和下框架的左右方向上的中间部分是 通过位于两侧部框架后面的中间框架相互连接并沿上下方向延伸,从而使装饰材料的后表面部分的中间部分向后突出。 根据这种靠背,当坐在椅子上的人倾斜靠靠靠背时,装饰材料的反作用力在倾斜动作期间不会发生极大的变化,靠背的装饰材料的后退量 可以充分确保对负荷的响应,从而获得舒适的坐姿。