| 摘要 |
<p>A sleeve for an anchor bolt capable of fixing a sleeve body by relatively small driving force. A large diameter hole (2) extending axially from one end surface of the sleeve body (1) and a small diameter hole (3) axially extending from the other end surface are formed on the sleeve body (1). Driving a pin inserted into the small diameter hole (3) of the sleeve body (1) in the axial direction breaks and separates a truncated-cone-shaped wedge (11) from the sleeve body (1). A female screw (4) having an inner diameter plane of the large diameter hole (2) as the effective diameter is formed on the inner diameter plane by form-rolling. Slits (5) extending axially from the second end surface of the sleeve body (1) for circumferentially splitting a second end of the sleeve body (1) and an end on a side of the small diameter hole of the wedge (11) into a plurality of pieces are formed at the second end of the sleeve body (1) and the end on the side of the small diameter hole of the wedge (11). The sleeve body (1) is inserted into a preparatory hole (30) formed in concrete (B), a rod (31) inserted into the large diameter hole (2) is struck to insert the wedge (11) into the small diameter hole (3). At the insertion, the diameter of the wedge (11) is reduced to reduce the driving force.</p> |
