| 摘要 |
Riveting device includes an anvil structure having a movable piston and attached pin for guiding a rivet to riveting position. The piston is movable by air under pressure and has an O-ring gasket which frictionally engages the walls of a bore in the base member below the anvil in which the piston moves. The O-ring enables the guide pin to retain the rivet in position prior to reaching the anvil, and holds the pin in retracted position to enable the riveted parts to be readily removed.
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