发明授权
US4685824A Road marking provided with protruding elements capable of resisting to snow plowing implements 失效
道路标线设有能够抵抗积雪耕具的突出元件

Road marking provided with protruding elements capable of resisting to
snow plowing implements
摘要:
The invention deals with a road marking tape which has retroreflective elements and protruding anti-skid elements, and which means is provided for preventing damaging of the retroreflective elements by snow plowing means. The preventing means is designed in accordance with the present invention in a special manner as a compressible element which is composed of a compressible material so that in response to impact of the protruding elements of the tape by the snow plowing means the compressible material of the compressible element compresses and the original thickness of the compressible material reduces to a predetermined thickness which is selected so that the protruding element sink into the groove by the depth at least equal to the height of the protruding elements.
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