Tire treads and tires
    1.
    发明授权
    Tire treads and tires 失效
    轮胎胎面和轮胎

    公开(公告)号:US4416316A

    公开(公告)日:1983-11-22

    申请号:US241222

    申请日:1981-03-06

    Abstract: A vehicle's spare tire can be made lighter and cheaper for economy, but this entails limited performance and shorter safe life. The invention provides a temporary spare tire with a tread which emits a distinctive two-tone or three-tone warning sound when in use to give audible warning of the need for early replacement.The tread is structured to maximize highway noise, and is circumferentially divided into two or more parts, each at least one-sixth of the circumference and which contact the highway in sequence. Each part emits a particular different note or tone, so that different notes or tones sound in sequence as the vehicle moves. The preferred tread structure is a block pattern with a sinusoidally varying land/sea ratio to concentrate acoustic energy at a characteristic frequency within each circumferential part. The same tread pattern may be used around the whole tread, "stretched" into long-pitch lengths for low notes and "compressed" into short-pitch lengths for high notes.

    Abstract translation: 一辆车的备用轮胎经济可以做得更轻,更便宜,但这样做的结果是有限的性能和更短的安全寿命。 本发明提供了一种具有胎面的临时备胎,其在使用时发出独特的双音或三音警报声,以提供对早期更换需要的可听见的警告。 胎面的结构是使公路噪声最大化,并且周向地分为两个或更多个部分,每个部分至少有六分之一的圆周,并且与高速公路顺序接触。 每个部分发出特定的不同音符或音调,使得当车辆移动时,不同的音符或音调依次发音。 优选的胎面结构是具有正弦变化的陆/海比以将每个圆周部分内的特征频率处的声能集中的块图案。 可以在整个胎面周围使用相同的胎面花纹,“拉伸”为长节距,用于低音,并且“压缩”成高音调的短节距。

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