Abstract:
A tacker for driving fasteners (11) into an object (14), which optionally consist of U-shaped staples or nails, has a driver (13) which in an ejecting motion ejects a fastener (11) and drives it into the object (14). Catches (19b) are arranged to prevent a nail (11) fed to an ejecting position from tilting to an inclined position which significantly deviates from the direction of ejecting/driving in. The catches (19b) are movable between a first position in which they extend into the path of the ejecting motion of the driver (13), and a second position in which they are moved away from this path against spring action. Each catch (19b) is formed on a tongue (19) which is punched in a plate (18) and bent to L shape, one L leg (19b) of the tongue extending perpendicular to the plane of the plate and forming the catch and the other L leg (19a) being positioned in the plane of the plate and forming a part which in a resiliently yielding manner supports the catch. Said one L leg (19b) of the tongue (19) has a ramp surface (19c) for such cooperation with the driver (13) that the catch is moved away against spring action to its second position direct or indirect by the driver during the ejecting motion thereof.
Abstract:
A stapler optionally including a base having an anvil adjacent one end, the anvil, if included, can have more than one staple receiving aperture or recess therein, the stapler further including; a staple magazine for receiving a strip of display staples and a block in which is a strip of conventional U-shaped wire staples having legs side-by-side and a constant cross-section in both the legs and bridge are mounted; a movable handle connected to the staple magazine or the base; a drive blade substantially rigidly fixed to the handle for forcing a conventional staple from the block in the staple magazine when the handle is moved; a drive head associated with the handle adjacent to or in association with the drive blade, the drive head being either held in a locked position relative to the handle for forcing display staples from the staple magazine when the handle is moved or in a release position allowing movement of the drive head relative to the handle to avoid forcing display staples from the magazine, and a locking means for holding the drive head in the locked position, the stapler being adapted to apply conventional staples with the locking means in the release position and display staples when in the locked position.
Abstract:
Objects are fastened to a support with a variety of staples or tacks (14a or 14b or 14c or 14d or 14e) using a hand-held appliance (1) that comprises a tubular element (17), designed to accommodate a bonded strip (36) of the staples or tacks (14a...e) purchased as a refill, a guide bar (18) positioned internally of the tubular element (17) along which the refill strip (36) is slidable, a spring-loaded element (27) by which the strip (36) is pushed in the direction of a restraining plate (30) located at one end of the tubular element (17), and a punch rod (7) by which the staples or tacks are separated singly from the strip and driven downwards, sliding against the surface of the plate (30); the top part of the guide bar (18) is chased with a longitudinal and vertically disposed groove (21), whilst the restraining plate (30) affords one or more slots or grooves (32 or 33a, 33b) in which to seat at least one leaf spring (33' or 33a, 33b) extending toward the longitudinal groove (21), or lower, and serving to maintain the correct position of the staple or tack as the rod (7) descends.
Abstract:
A power tool (210) and fasteners (212) filled with a filler material (218) are provided. The power tool (210) drives fasteners into a substrate and fills cavities formed in the substrate formed over the driven fasteners with a filler material. The power tool (210) is preferably a pneumatic gun having a staple driver (220) and a filler material driver (22) actuated by pressurized air. The gun includes a trigger operator (310) which when pulled first causes a staple (212) carrying filler material (218) therewith to be driven by a plunger (252) of the staple driver (220) through its shaft into the substrate with the filler material (218) extruding from the driven staple (212) into the shaft (288) of the filler material driver (222) which is next driven by a plunger (290) of the filler material driver (222) out from its shaft (288) and into the cavity (216) formed over the driven staple (212). A scraping shoe (230) can be provided adjacent the drivers for scraping away excess filler material (218) from the substrate surface (214a).