In the housing of a setting device for driving fastening elements, a belt-like magazine holding fastening elements in spaced relation is moved through a guide channel transversely of the path of a driving piston. A transport device positioned in the housing moves the magazine through the guide channel in a step-wise manner. A stop lever is pivotally mounted in the housing and is spring-biased at one end into the guide channel. When the magazine is located within the guide channel in the path of the stop lever, the transport device can be operated to move the magazine. When the magazine is moved out of the path of the stop lever, however, the stop lever extends further through the guide channel and its other end engages a pawl on the transport device blocking its operation so that the magazine cannot be moved through the guide channel.
A hand-held setting tool for driving fastening elements in a workpiece includes a muzzle member (20) axially displaceable relative to the tool housing (11) in a direction of an operational axis (A) of the setting tool (10), a feeding channel (28) for a fastening element strip (50) and arranged in the muzzle member (20) and opening into a fastening element the receiving chamber (29) provided in the muzzle member (20), and a locking member (40) arranged on the muzzle member (20) and forming a locking section (42) displaceable into the feeding channel (28), and a blocking section (41) for preventing displacement of the muzzle member relative to the housing.
A compression triggered powder driven fastening tool having a firing mechanism with a sleeve axially movable between first and second positions, a lever cam coupled to the sleeve or some other reciprocating portion of the tool and movable therewith, an indexing lever pivotally coupled to the tool, the indexing lever having a magazine strip engagement portion extending into a magazine channel of the tool, the indexing lever having a cam follower portion engaged with the lever cam, the magazine strip engagement portion of the indexing lever moves between first and second positions in the magazine channel as the sleeve moves with the reciprocating portion of the tool to which it is coupled, the magazine engagement portion of the indexing lever indexes a magazine strip through a channel of the tool.
In a powder driven fastening tool, a channel is included for feeding a strip of explosive powder cartridges to a firing mechanism. A trigger is included for actuating the firing mechanism, wherein the trigger is movable between a first position and a second position. An advancing lever is pivotally coupled to the tool, the advancing lever having a strip engagement portion for indexing the strip which extends into the channel. An advance link is cammingly engaged with the advancing lever and is operationally associated with the trigger so that the strip engagement portion is in a first position in the channel when the trigger is in the first position and so the strip engagement portion is in a second position when the trigger is in the second position.
