PURPOSE: To place a sponge on a tilt surface by holding the sponge on a horizontal surface.

CONSTITUTION: At the time of holding a sponge 17 placed on a horizontal surface, a needle holder 9 and needles 7, fixed to a point end of a cylinder 15, are protruded and plunged into the sponge 17 to hold it. At the time of placing the sponge 17 on a tilted surface, after one side of a lower surface of the held sponge 17 is brought into contact with the tilted surface of a mold 18, the cylinder 15 is retracted to extract the needle 7 from the sponge 17. Further when a hand, left as it is, is lowered down, a subplate 5 fixed to a plate 4 by a hinge 6 is flexed in an upper direction against a compression spring 10, and the sponge 17 can be placed to press the tilted surface of the mold 18 by lower surfaces of the plate 4 and the subplate 5.