| 摘要 |
An access cover lid 10 for use with manholes such as those used for accessing drains, meters, telecommunications nodes. It comprises a first base part 12 dimensioned to cover or substantially cover an opening of the manhole and a second rim part 18 which extends around the base part 12. Fixings are unitarily formed in the base and/or rim to securely engage them together. The fixings may be one or more recesses 32 formed in the rim 18 in which the edge of the base locates so they are held together without the need for further fastening. The recesses 32 can be formed under ribs 24. The lid is preferably tray-shaped to receive an infill. The rim part may only define a side or sides of the tray-shape. Preferably the base part is formed from metal and the rim part from plastics and/or rubber material. A shrink-fit process can be used to secure the rim around the base. |
