| 摘要 |
PROBLEM TO BE SOLVED: To provide a manhole for a slope face, installed for the inspection or the like of a sewer pipeline, on the way of the sewer pipeline disposed in an inclined road or the like, without needing an expensive die. SOLUTION: An invert pipe part formed with an inflow side socket for connecting a sewer pipe, an invert part and an outflow side spigot, is inserted through and jointed to the lower part of a riser, in an inclined state so that the socket side is higher in relation to the axis of the riser, and the riser is blocked below the invert part.
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