To make it possible to simply arrange a set of retainer mold members opposite to each other, leaving a space as specified in between by separators, and easily arrange iron reinforcing bars when they are disposed and further, freely change a distance between the iron reinforcing bars, and further, prevent a flame from spreading its way into the inner wall side from the outer wall side when it breaks out.
This retainer mold structure is made up of separators 10, each of which comprises the body of the separator 10 of a thin plate shape and retainer mold member fitting parts 12, 13 formed on both end parts of the body of the separator 10. In addition, perforated groove parts 35, 36 for fitting the separator 10, are formed running vertically through the thick wall parts of retainer mold members 31, 32. Further, the mold member fitting parts 12, 13 are introduced through the perforated groove parts 35, 36 and thereby, the separators 10 are spanned between the mold members 31, 32. After that, foldable pieces 21-24 for fitting which are formed on the body of each of the separators 10 and can be folded to the right and the left vertically with the body of each of the separators 10, are folded so that the foldable pieces 21-24 come into contact with the inner lateral face parts 33, 34 of the mold members 31, 32. Thus it is possible to fasten the separator members to the mold members 31, 32.
FUJIWARA TOSHIRO
TOHOKU SHIZAI KOGYO KK