Abstract: A molding apparatus reduces waviness or deformation of fibers. The molding apparatus includes a fiber feeder that feeds fibers, a resin feeder that feeds a resin, a curing accelerator that accelerates curing of the fed resin while the fed fibers are being tensioned, and a transporter that relatively changes a feeding position of the fibers, a feeding position of the resin, and an accelerating position of the curing.

Abstract: A molding apparatus reduces waviness or deformation of fibers. The molding apparatus includes a fiber feeder (7) that feeds fibers (5) to a lamination area (32) long in a first direction, a resin composition feeder (11) that feeds a resin composition (9) to the lamination area (32), an impregnator (17) that impregnates the fibers (5) fed to the lamination area (32) with the resin composition (9), a curing accelerator (13) that accelerates curing of the resin composition (9) fed to the lamination area (32) while the fibers (5) fed in the lamination area (32) are being tensioned, and a transporter (15) that relatively moves the devices (7, 11, 17, and 13) in the first direction with respect to the lamination area (32). The resin composition (9) contains an epoxy resin (A), a cyanate resin (B), and an aromatic amine curing agent (C) that is liquid at 25° C.

Abstract: A molding apparatus reduces waviness or deformation of fibers. The molding apparatus includes a fiber feeder that feeds fibers, a resin feeder that feeds a resin, a curing accelerator that accelerates curing of the fed resin while the fed fibers are being tensioned, and a transporter that relatively changes a feeding position of the fibers, a feeding position of the resin, and an accelerating position of the curing.

Abstract: A railcar bogie plate spring of the present invention includes: an upper surface member constituted by fiber reinforced plastic in which reinforced fibers are stacked so as to extend in a longitudinal direction; a lower surface member constituted by fiber reinforced plastic in which reinforced fibers are stacked so as to extend in the longitudinal direction; and a core member arranged between the upper surface member and the lower surface member. The core member is constituted by fiber reinforced plastic in which: reinforced fibers are stacked in a width direction perpendicular to a stack direction of the upper surface member and the lower surface member; and in a side view of the core member, the reinforced fibers are inclined relative to a bending neutral axis so as to intersect with one another.

Abstract: A railcar bogie plate spring of the present invention includes: an upper surface member constituted by fiber reinforced plastic in which reinforced fibers are stacked so as to extend in a longitudinal direction; a lower surface member constituted by fiber reinforced plastic in which reinforced fibers are stacked so as to extend in the longitudinal direction; and a core member arranged between the upper surface member and the lower surface member. The core member is constituted by fiber reinforced plastic in which: reinforced fibers are stacked in a width direction perpendicular to a stack direction of the upper surface member and the lower surface member; and in a side view of the core member, the reinforced fibers are inclined relative to a bending neutral axis so as to intersect with one another.

Abstract: A sailing ship includes a sailing unit, which comprises a hard sail assembly comprising a plurality of hard sail sections of wing-shaped hollow cross section vertically stacked so each, except the lowermost, fits on the one immediately below; a mast assembly comprising a plurality of mast sections of hollow cross section vertically stacked so each, except the lowermost, fits in the one immediately below; connecting members for connecting upper ends of the hard sail sections to upper ends of the mast sections located at the same level; first means for moving each mast section, except the lowermost, toward and away from the one immediately below; and second means for rotating the mast assembly around its longitudinal axis. Overlapping lengths between vertically adjacent mast sections are variably controlled so as to variably control overlapping lengths between vertically adjacent hard sail sections. Thus, the hard sail assembly vertically expands and contracts.

Abstract: A sailing ship comprises a hard sail assembly. The hard sail assembly comprises a plurality of hard sails of wing-shaped hollow cross section. The hard sails are vertically stacked so that each except the lowermost is received in the one immediately below. The sailing ship further comprises an apparatus for driving the hard sails to move each except the lowermost toward and away from the one immediately below, a post extending vertically to support the lowermost hard sail, and a second apparatus for rotating the post around its longitudinal axis. Overlapping lengths between vertically adjacent hard sails are variably controlled to make the hard sail assembly expand and contract vertically.

Abstract: A sailing ship includes a sailing unit, which comprises a hard sail assembly comprising a plurality of hard sail sections of wing-shaped hollow cross section vertically stacked so each, except the lowermost, fits on the one immediately below; a mast assembly comprising a plurality of mast sections of hollow cross section vertically stacked so each, except the lowermost, fits in the one immediately below; connecting members for connecting upper ends of the hard sail sections to upper ends of the mast sections located at the same level; first means for moving each mast section, except the lowermost, toward and away from the one immediately below; and second means for rotating the mast assembly around its longitudinal axis. Overlapping lengths between vertically adjacent mast sections are variably controlled so as to variably control overlapping lengths between vertically adjacent hard sail sections. Thus, the hard sail assembly vertically expands and contracts.

Abstract: A sailing ship comprises a hard sail assembly. The hard sail assembly comprises a plurality of hard sails of wing-shaped hollow cross section. The hard sails are vertically stacked so that each except the lowermost is received in the one immediately below. The sailing ship further comprises means for driving the hard sails to move each except the lowermost toward and away from the one immediately below, a post extending vertically to support the lowermost hard sail, and second means for rotating the post around its longitudinal axis. Overlapping lengths between vertically adjacent hard sails are variably controlled to make the hard sail assembly expand and contract vertically.