| 摘要 |
The invention relates to an expansion anchor, comprising a shaft (1), which shaft has a neck region (11) and an expansion region (10), wherein the expansion region (10) is arranged at an axial offset to the neck region (11), and comprising an expansion channel (5), which passes through the neck region (11) and the expansion region (10) of the shaft (1), wherein the shaft (1) can be radially expanded in the expansion region (10) by inserting an expansion element into the expansion channel (5) in order to anchor the expansion anchor in a borehole, and wherein the expansion channel (5) is formed in the expansion region (10) by punctures (21, 31, 22, 32), which start from the shaft periphery and lead into the shaft interior. According to the invention, the expansion channel (5) is formed in at least one cross-sectional plane of the expansion region (10) by two punctures (21, 31), which start from regions of the shaft periphery that lie opposite to each other in the cross-sectional plane. |
