PROBLEM TO BE SOLVED: To provide a fine hollow protrusion manufacturing method capable of inexpensively and stably mass-producing fine hollow protrusions having high accuracy in the height of the fine hollow protrusions and including through-holes having high accuracy in the dimension of the through-holes.SOLUTION: The fine hollow protrusion 1 manufacturing method according to the present invention, comprises a protrusion part forming step of bringing a convex part 11 having heating means into contact from one face 2D side of a substrate sheet 2A and, while softening with heat a contact portion TP, penetrating the substrate sheet 2 with the convex part 11 towards another face 2U of the substrate sheet 2A, and forming a protrusion part 3 which protrudes from the other face 2U and has a through-hole 3h. The protrusion part forming step further comprises, using a receiving member 13 disposed at a distance apart from the other surface 2U of the substrate sheet 2A, in the protrusion part forming step, causing the convex portion 11 to come into contact with the receiving member 13 and forming the through-hole 3h on the protrusion part 3.SELECTED DRAWING: Figure 4COPYRIGHT: (C)2017,JPO&INPIT【課題】微細中空突起物の高さ及び貫通孔の大きさの精度の高い貫通孔を有する微細中空突起物を、低コストで、安定的に、大量生産できる微細中空突起物の製造方法を提供すること。【解決手段】本発明の微細中空突起物1の製造方法は、基材シート2Aの一面2D側から、加熱手段を備える凸型部11を当接させて、当接部分TPを熱により軟化させながら、基材シート2Aの他面2U側に向かって凸型部11を基材シート2に刺してゆき、他面2U側から突出すると共に貫通孔3hを有する突起部3を形成する突起部形成工程を備える。突起部形成工程は、基材シート2Aの他面2Uから間隔を空けて配された受け部材13を用い、突起部形成工程において、受け部材13に凸型部11が接触して突起部3に貫通孔3hが形成される。【選択図】図4
