| 摘要 |
A washer strip (12) is provided for use in connection with a rapid acting fastener driving tool apparatus. The washer strip comprises a plurality of resilient sealing washers (24) serially connected at selected weakened shear locations (26). Each of the washers defines an opening (28) adapted to receive a fastener element shank portion (19), when the fastener (14) is driven by a driver blade (16). The fastener (14) slides within the washer (24) until the washer is situated just beneath the head portion (20), whereupon the washer (24) is sheared and separated at the shear location from the remainder of the connected washers in the strip (12). A seal is thus provided on the portion of the shank (19) just beneath the head portion (20) between the fastening element head portion and the portion of the shank distant from the head portion, so that substantially no waste material is produced. In another arrangement one or more washer strips (22) hold and carry the fasteners (14) in strip form. |
