| 摘要 |
A wedge anchor has a shank with an expander section having a surface that forms an angle greater than 8° with respect to an axis of the shank. A plurality of longitudinal ribs project radially and outwardly from the expander section, extend along the axis of the shank, and are angularly spaced apart from each other. A tubular expansion sleeve is sleeved on a neck section of the shank adjacent to the expander section, and is formed with a plurality of axially extending slits for engaging the longitudinal ribs when the expander section is extended into the expansion sleeve.
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