A compact tacker for driving fasteners into a workpiece includes a housing defining a handle and a nose portion. A driver is reciprocally mounted within a drive track defined within the nose portion. The tacker also includes a magazine assembly slideably mounted within the housing including a forward end that is positioned adjacent the drive track such that the driver reciprocates between the nose and the forward end of the magazine assembly. A bistable biasing member is mounted within the housing and in a first stable position, biases the magazine toward the nose and in a second stable position biases the magazine assembly away from the nose. In the second position there is defined an open area around the drive track to allow removal of jammed fasteners.
An apparatus for directing fluid emitters into an irrigation pipe is provided, wherein the emitter includes a magazine aligning the emitter nails in a longitudinally aligned parallel relationship, including a hammer operative through a piston to sequentially project emitter nails into an underlying pipe. The pipe is mounted upon a "J" shaped support anvil, wherein the anvil may optionally further include a foot member mounted upon a slide mounted to a forward wall of a housing of the apparatus to provide frictional retention of the pipe during assembly of the emitter nails and the pipe.
A tacker has a magazine to contain staples and a striker movable against a spring biassed to eject the staples from an ejection slot. An integral handle and pawl are provided to engage the striker to move the striker against the spring bias, the pawl being disengageable from the striker to release the striker to enable a staple to be ejected. The arrangement is such that the handle and part of the magazine are spaced apart by such a distance that the handle and the magazine can be grasped by a single hand. The handle, on operation of the device, moving towards the magazine.
A spring actuated staple driving device including a combined housing and magazine assembly constructed of an outer metal casing and an interior plastic core, the plastic core being provided by a molded body which provides key functional surfaces which materially aids in the assembly and accuracy of assembly. The device utilizes an elongated leaf spring to effect the staple driving action and provides a direct movement of the leaf spring by the actuating mechanism. The fixed end of the leaf spring is bent to form a segmental cylindrical surface which receives a cylindrical pin portion to control the movement of the leaf spring and an adjusting mechanism for the cylindrical pin is provided.
A desktop stapler uses a spring to store energy to install staples by impact blow. The force required to fasten papers together is reduced. A very compact mechanism is used, including a dual coil power spring with a nested lever. A multi function base provides a sloped front all the way to down to a desk top surface to guide paper sheets atop the base, easy access for lifting the stapler off a desk, horizontal or vertical resting positions, and integrated soft grip under-surface. The base surrounds the rear of the stapler body to provide a smooth exterior so that the device is natural to use both horizontally and vertically. A simple re-set spring provides a smooth re-set action as the handle is raised. A staple track includes enlargement features to fit a larger staple pusher spring.
An impact stapler (100) includes an actuator mechanism (110) comprising a firing lever (180) pivotally mounted on a stapler housing (102) and operable by an operating lever (160) for raising a striker (112) against the bias of an actuator spring (240). The firing lever (180) has a front tip (190) which is positioned to engage a tab (272) on the striker (112) when the operating lever (160) is actuated to raise the striker (112) and which is shifted laterally to disengage the front tip (190) from the tab (272) to release the striker (112) for actuation by the actuator spring (240) after the striker (112) is raised. The impact stapler (100) includes a resilient finger (292) for shifting the firing lever (180) laterally to a rest position with the front tip (190) underneath the tab (272) on the striker (112). A stop (295) engages the firing lever (180 ) in its rest position to limit the bending of the resilient finger (292) and to locate the front tip (190) in a predetermined lateral position relative to the tab (272) on the striker (112).
