| 摘要 |
A bore gripping anchor structure for attaching articles to the outer surfaces of masonry materials and other solids which is actuated by a blind rivet type installation tool. A basic embodiment has an anchor component with bidirectionally deflectable fingers (20) and a concentrically situated and slidably housed actuator device which has a stem (30) and a force applying portion, anvil (40). After insertion into a bore in a first direction, the actuator device is pulled in the opposite direction, so that said anvil (40) interacts with said fingers (20) in a manner which causes said fingers(20) to first be deflected outward and into substantial contact with the wall of the bore, and with continued pulling of said anvil (40) in the opposite direction causes the end portions of said fingers (20) to deflect inward and behind said anvil (40), to couple the anchor structure with the bore. |
