MANHOLE COVER
A manhole cover for a skid-proof manhole is provided to prevent an accident that may be caused by difference of frictional force between skid-proof protrusion members being worn out and a ground surface, and efficiently remove foreign substances caught on a surface of the manhole cover by forming gr...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A manhole cover for a skid-proof manhole is provided to prevent an accident that may be caused by difference of frictional force between skid-proof protrusion members being worn out and a ground surface, and efficiently remove foreign substances caught on a surface of the manhole cover by forming grooves. A manhole cover(100) for a skid-proof manhole comprises first and second skid-proof protrusion members(200,300) having a square wedge shape and different sizes from each other. Respectively two first and second skid-proof protrusion members are alternately arranged. Surface contact parts(210,310) having a square sectional shape are formed at an upper end of the skid-proof protrusion members. Guide grooves(220), which are opened upward, are formed widthwise and lengthwise on the first skid-proof protrusion members larger than the second skid-proof protrusion members. Therefore, widthwise and lengthwise grooves are formed on the whole surface of the manhole cover. Florescent paint can be applied on the first and the second skid-proof protrusion members. |
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