The invention provides an air spring which can not make the structure more complex and can ensure the air tightness. The utility model is characterized in that: the upper panel (1), the lower panel (2), the cylindrical flexible member (3) is arranged between the upper panel (1) and the lower panel (2), and the elastic limiting device (4) is arranged on the lower panel (2). The lower panel (2) has a bead bearing portion (8) for fitting a bead portion (3b) of the lower end portion of the flexible member (), and a flange portion (9) formed in a direction that is more in the radius direction than the bead bearing portion (2). A through hole (15) is formed at the flange portion (9) and the fixing member is clamped in the through hole (15) to fix the top plate (2) and the elastic cap (4).
【技术实现步骤摘要】
【国外来华专利技术】
本专利技术涉及一种用于铁路车辆等的空气弹簧。
技术介绍
一直以来,作为用于铁路车辆等的空气弹簧,众所周知如专利文献I的图5所示的空气弹簧,其具备:安装在车辆车身的上面板;配置在上面板下方车轮侧的下面板;遍及上面板和下面板而配置的橡胶制可挠性构件(囊:bell0WS);安装在下面板和车轮侧支架之间的弹性限位器。上述弹性限位器用于限制车身上下方向的变动。弹性限位器一般采用交替层叠橡胶层和钢板而成的层叠橡胶结构。在上述弹性限位器的顶部设有顶板,下面板固定于顶板。更详细地讲,在下面板形成有用于使可挠性构件下端部胎圈部嵌合的胎圈承受部,在比胎圈承受部更靠半径方向内侧的位置形成有可插通螺栓的贯通孔。另外,在顶板的与下面板贯通孔相应的位置上形成有用于与螺栓进行螺纹结合的螺孔,在下面板和顶板接合的状态下,将螺栓插通在下面板的贯通孔而与顶板的螺孔进行螺纹结合,由此使下面板固定于弹性限位器。在可挠性构件的内部供给有空气,从而维持加压状态。通过因加压空气而膨胀的可挠性构件和弹性限位器,空气弹簧针对上下方向的负荷或振动发挥缓冲功能。现有技术文献专利文献专利文献1:特开平10-28823 ...
【技术保护点】
【技术特征摘要】
【国外来华专利技术】...
【专利技术属性】
技术研发人员:安永裕喜,桝中义智,
申请(专利权)人:东洋橡胶工业株式会社,
类型:
国别省市:
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