Patent ID: 8899629

Claim:
A connection assembly, comprising: a connection between a drill pipe made of carbon- or glass fiber-reinforced plastic and a tubular, metal connector that is partially held in one end of the drill pipe and is cemented to the drill pipe; and a thrust element that is positively connected to the connector in a region of an end of the drill pipe in which the connector is held and which presses on an outside of the end of the drill pipe, the thrust element including an outer sleeve with bores that rests on the outside of the end of the drill pipe and has an opposing surface that is adjoined by a thrust ring with bores, the thrust ring being connected to the outer sleeve by screws inserted through the thrust ring bores and screwed into the outer sleeve bores to hold the drill pipe against the connector, the thrust ring bores and the outer sleeve bores being substantially parallel to a longitudinal axis of the drill pipe, wherein a contact surface between the end of the drill pipe and the connector widens conically toward the end of the drill pipe, wherein the thrust element has a wedge-shaped sleeve that rests on the outside of the end of the drill pipe and has an opposing surface that is adjoined by the thrust ring, the thrust ring being positively connected to the connector.