| 摘要 |
PROBLEM TO BE SOLVED: To mold a U-shaped channel block body and a planter forming a continuous material of constant section in a good manner and with good productivity by improving both side peripheral walls. SOLUTION: Among four peripheral walls 14a, 14b, 14c and 14d, both side peripheral walls 14a and 14b are supported rotatably between the position opened widely into a fan-like shape of and the female mold-shaped molding position close to a bottom member and adjoining fixed upper and lower walls 14c and 14d by the pivots. Upper and lower peripheral walls 14c and 14d are fixed on a bottom face member 15. When a U-shaped channel block, a planter or the like having the sectional shape in the longitudinal direction is molded, molding can be carried out simply by rocking both side peripheral walls 14c and 14d only by the arrangement to shorten the molding cycle. |
