Method for connecting a connection piece to a u-shaped ring anchor for a head module for rail vehicles

A method for connecting a connection piece to a U-shaped ring beam for a head module for rail vehicles, wherein the head module consists predominantly of fibre-reinforced plastic material and has an outer shell, and the ring beam consists of fibre-reinforced plastic material and is arranged as stiffener in a roof area of the outer shell, having at least the following steps:

• a) preparing a mould for the outer shell with a section mould for the ring beam,
• b) preparing a fibre-reinforcing structure of the ring beam which structure is dry or impregnated with matrix material and unconsolidated, and placing it in the section mould,
• c) preparing the connection piece for each end of the U-shaped ring beam,
• d) preparing connecting elements,
• e) feeding the connecting elements through the fibre-reinforcing structure of the ring beam or construction in plies of the fibre-reinforcing structure, wherein each ply is deposited while being penetrated by the connecting elements,
• f) feeding the connecting elements through openings of the connection pieces provided for this purpose,
• g) constructing the outer shell from fibre-reinforcing material and impregnating the fibre-reinforcing material of outer shell and ring beam with matrix material,
• h) jointly consolidating ring beam and outer shell,
• i) fixing the connecting elements such that they are fixed on both sides of the ring beam, including the connection pieces.