| 摘要 |
A delivery tool (10) is provided for driving fastening devices (24), for example, U-shaped fastening devices which mount tubing to a surface. The delivery tool (10) has a pivoting structure, including a driving member (14) and a base member (12). The delivery tool (10) includes a movable ram (44) which is axially guided within the base member (12) to maintain an orientation perpendicular to the surface to drive the fastening devices (24) in a straight manner. A pneumatic impact mechanism (56) is housed within the driving member (14) to assist the ram (44). The impact mechanism (56) has a concave force delivery member (58) shaped to contact the ram (44) at a generally radial orientation relative thereto, thereby optimally delivering the impact forces to the ram (44) regardless of the angular position of the driving member (14) relative to the base member (12). <IMAGE>
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