| 摘要 |
The closure element according to the invention is a tensioning pin (1) which can be tensioned and the head part of which forms a closure disc (2) that can be spread apart by the tensioning pin. Said closure disc is pressed, in the installed state, against the inner wall (6) of the bore to be closed. When a specific tensile stress is reached, the tensioning pin (1) is separated from the closure disc (2) at a predetermined breaking point (7) of the tensioning pin. The easy-to-handle tensioning pin facilitates the installation of the closure in the bore in the component. Since the closure disc (2) is pressed against an outer counterholder (9) during the installation process, it can be inserted into a continuously smooth bore. The limitation of the tensile stress effected by way of the predetermined breaking point also ensures that the bore is closed with a defined closing force.
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