Metal sheet for press forming, press forming device, and production method for pressed component

A metal sheet for press forming to be press formed into a press-formed component shape that has a hat-shaped cross-sectional shape including a vertical wall portion and a flange portion on both sides of a widthwise direction of a top sheet portion and that includes, at one or more places along a longitudinal direction of the top sheet portion, a curved portion curved in such a manner as to protrude toward one side of the widthwise direction of the top sheet portion as seen in a plan view,

• wherein, in a developed shape of the press-formed component shape developed on a plane in such a manner that a line length of a position corresponding to a line length of a ridge line between the top sheet portion and the vertical wall portion in the press-formed component shape is equal to a line length of a position corresponding to the ridge line in a region corresponding to the curved portion, a boundary between the region corresponding to the curved portion of the developed shape and an other region is rotationally displaced in-plane around a rotational center set at a position on a curved recessed side rather than a position corresponding to a ridge line between the top sheet portion and the vertical wall portion on the curved recessed side, in a direction in which a line length of an outer edge of a position to be formed into the flange portion on a curved protruding side in the developed shape approaches a line length of an outer edge of the flange portion on the curved protruding side in the press-formed component shape.