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    • 33. 发明授权
    • Helmet chain strap buckle
    • 头盔链带扣
    • US5077839A
    • 1992-01-07
    • US562832
    • 1990-08-06
    • Steven C. Keller
    • Steven C. Keller
    • A42B3/08A44B11/25
    • A42B3/08A44B11/25Y10T24/3412Y10T24/4093
    • A chin strap buckle for securing a protective helmet to a wearer's head includes a female snap fastener member and a male snap fastener member which snappingly interlock together at their respective one ends in a pivotal relationship. The female member is formed of a substantially triangularly-shaped mid-portion and left and right end portions formed integrally with the opposite sides of the mid-portion. The mid-portion has a trough-like recess formed at its top. The male snap fastener member is formed of a triangular body portion and a lower end portion. The body portion has a post extending outwardly therefrom adjacent its top. The post has an enlarged button and a neck connecting the button to the body portion. The neck of the body portion of the male member is snappingly received within the trough-like recess formed at the top of the female member for interlocking the male and female members together. Stop members are formed upon the female member for limiting the rotational or punctual movement of the male member relative to the female member.
    • 用于将保护性头盔固定到佩戴者头部的下巴带扣包括一个阴扣扣构件和一个凸形搭扣构件,它们在它们各自的一端以枢轴关系卡扣地互锁在一起。 阴构件由大致三角形的中间部分和与中间部分的相对侧一体形成的左右端部形成。 中部具有在其顶部形成的槽状凹部。 公扣扣构件由三角形主体部分和下端部分形成。 主体部分具有从其顶部向外延伸的柱。 该柱具有放大的按钮和将按钮连接到主体部分的颈部。 阳构件的主体部分的颈部被卡扣地容纳在形成在阴构件顶部的槽形凹部内,用于将阳构件和阴构件互锁在一起。 止动构件形成在阴构件上,用于限制阳构件相对于阴构件的旋转或准时移动。