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公开(公告)号：US4491364A
公开(公告)日：1985-01-01
申请号：US348275
申请日：1982-02-12
申请人： Takemi Hattori , Kozo Esaki
发明人： Takemi Hattori , Kozo Esaki
CPC分类号： B60N2/665 , B60N2/4415 , B60N2/66 , Y10S297/03 , Y10T137/8778 , Y10T137/87861
摘要： A lumber support system comprising an air bag disposed behind the upholstery sheet of a vehicle seat, a manual air pump and a valve assembly for controlling the supply of air from the manual air pump into the air bag as well as the discharge of the air contained in the air bag. The valve assembly comprises a valve casing being attached to the vehicle seat and provided with a partition wall partitioning the interior of the valve casing into first and second chambers, an inlet port for allowing the communication of the first chamber with the outlet of the manual air pump, a discharge port for allowing the communication of the first chamber with the exterior of the valve casing, an outlet port allowing the communication of the second chamber with the air bag, a manually operable push button movably supported on the valve casing, a first normally closed valve formed within the first chamber for normally closing to interrupt the communication between the first chamber and the discharge port and adapted to be opened when the push button is depressed manually, and a second normally closed valve formed within the second chamber for normally closing an opening formed on the partition wall to interrupt communication between the first and second chambers therethrough and adapted to be opened when pressurized air is supplied into the first chamber and when the first normally closed valve is opened.
摘要翻译： 一种木材支撑系统，包括设置在车辆座椅的装饰片后面的气囊，手动空气泵和用于控制从手动空气泵进入气囊的空气供应的阀组件以及排出所含有的空气 在气囊里。 所述阀组件包括阀壳体，所述阀门壳体附接到所述车辆座椅并且设置有将所述阀壳体的内部分隔成第一和第二腔室的分隔壁，用于允许所述第一腔室与所述手动空气出口连通的入口端口 泵，用于允许第一腔室与阀壳体的外部连通的排出口，允许第二腔室与气囊连通的出口端口，可移动地支撑在阀壳体上的可手动操作的按钮，第一 常闭阀，形成在第一室内，用于常闭，以中断第一室和排出口之间的连通，并且适于当手动按下按钮时打开;以及形成在第二室内的第二常闭阀，用于正常关闭 形成在分隔壁上的开口，以阻断第一和第二腔之间的连通 d适于在加压空气供应到第一室中时和当第一常闭阀打开时打开。
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