| 摘要 |
PROBLEM TO BE SOLVED: To provide a curing device around a pit opening formed at a basement floor of a building, for instance, which positively secures safety during operation. SOLUTION: The curing device 1 around a pit opening has a tabular curing body 3 covering the pit opening, an opening/closing lid means 5 rotatably attached to the curing body, erected in the substantially vertical direction to form the curing body to open/close a gateway, and a positioning means 6 positioning the curing body according to the dimension of the pit opening 2 in the curing body. COPYRIGHT: (C)2004,JPO
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