PROBLEM TO BE SOLVED: To provide a fiber stacking device capable of adjusting an amount of stacking of molding material without causing stacking unevenness, and also in which the molding is not easily broken.SOLUTION: A fiber stacking device is provided, in which, on an inner surface side of a porous member, an adjusting body 10 is arranged in an overlapping manner on at least a part of the inner surface thereof, where the adjustment body is formed of a first layer and a second layer and for adjusting air flow at suction. The first layer has a plurality of first openings 81 and an impervious opening defining part 82 that partitions and forms the openings 81. The second layer has second openings 91 each having a smaller aperture area than the first opening 81 and formed correspondingly to the first opening 81. In an inner part of each of the outermost first openings 81X arranged along a contour line 22L of a stacking groove 22, in plan view of the groove 22, the second opening 91 is located adjacent without a gap to the outermost opening defining part 82X, which is located nearest to and along the contour line 22L, among the opening defining part 82 that defines the openings 81X.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2016,JPO&INPIT【課題】積繊ムラを発生させずに、成形体材料の積繊量を調整可能で、且つ成形体に欠けが発生し難い積繊装置を提供すること。【解決手段】多孔性部材の内面側に、第1層と第2層とからなり吸引時の空気流を調整する調整体10が、該多孔性部材の内面の少なくとも一部に重ねて配されている。第1層は、複数の第1開口部81と該開口部81を区画形成する非通気性の開口部画成部82とを有する。第2層には、第1開口部81に比して開口面積の小さい第2開口部91が、各第1開口部81に対応して形成されている。集積用凹部22の輪郭線22Lに沿って配されている最外側第1開口部81Xの内部では、該凹部22の平面視において、第2開口部91は、該開口部81Xを画成する開口部画成部82のうち、輪郭線22Lに最も近く且つ輪郭線22Lに沿う最外側開口部画成部82Xと距離を置かずに隣接している。【選択図】図3
