| 摘要 |
PROBLEM TO BE SOLVED: To provide an eaves trough molding method in which the after- processing is not required and an eaves trough equivalent to the eaves trough to which bend processing is applied in an extrusion molding process can be obtained. SOLUTION: In an eaves trough molding method, an eaves trough 7 with lugs formed on the upper ends of both side sections and having its opening facing downward is extruded out of an extrusion mold 2 on the end of an extruder 1 and cooled and set while being shaped by a cooling sizing die 4 and then taken off by a take-off mechanism 5, and AES resin having the shrinkage factor larger than that of solid vinyl chloride resin forming the eaves trough 7 is fed from a second extruder 3 for coating connected with the side section of the extrusion mold 2 into the extrusion mold 2 to carry out the coextrusin coating of the outer face side of the eaves lugs of the eaves trough 7.
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