| 摘要 |
A piston for driving tacks comprises a magazine that holds a series of tacks preferably interconnected in a strip by individual casings that are detachably interconnected in side-by-side relation in the strip. As the strip advances through the magazine, the casings each containing an individual tack, are severed from the strip by a reciprocating driver which grips and advances the tack and casing and drives the tack, and then retracts to the initial position where the advancing strip forces the empty casing from the driver in the direction of strip advance. The driver has a projection thereon that contacts and ejects this empty casing upon the next advance of the driver. The gun is recocked by pneumatic recoil.
|
