| 摘要 |
There is disclosed apparatus for attaching tags using fasteners of a type having a bar section and a button section joined by a filament section. Opposed operating levers are pivotally mounted on opposite sides of the body. Each lever carries a cam. A first carrier is mounted by the body and a second carrier is mounted by the first carrier. A push rod is connected to the second carrier. Each cam cooperates with a respective roller. A rack is secured to each body section and the second carrier has a pair of racks. Each gear meshes with a respective body section rack and a respective second carrier rack. A pawl is coupled to the first carrier. Action of the operating levers causes the cams to drive the first carrier. Movement of the first carrier causes the racks and gears to drive the push rod forward until the pawl is moved to a ready position. A spring acting on the first carrier returns the carriers, the levers and the push rod to their respective initial positions and moves the pawl away from its ready position to drive a toothed wheel of a fastener advancing means to bring a bar section of the next successive fastener into alignment with the needle bore. |
