摘要:
A stapling device having an outwardly clinching anvil member of spring metal mounted on a detachably fixed nose piece element by an adjusting mechanism comprising a stud extending outwardly from the nose piece element through an exterior keyway therein within which the anvil member is slidably mounted, the anvil member having a cam follower opening therein engageable by an eccentric cam of an adjusting member rotatably mounted on the stud, the adjusting member extending through a backing plate and including a knob portion engaging the same by which the adjusting member is rotationally moved to effect movement of the anvil member in the keyway parallel with the drive track. The backing plate includes an inwardly bent end engaged within the keyway to prevent turning thereof and a locking nut is provided to lock the adjusting mechanism after adjustment.
摘要:
A stapling tool drives U-shaped staples into a workpiece in such a manner that the crown of the driven staple is longer than the original staple crown. The tool includes a nosepiece structure defining a drive track into which successive staples are fed with the crown underlying the lower end of the staple driving blade. A rigid anvil element pivotally mounted in a cavity communicating with the drive track includes a planar part forming a part of the back wall of the drive track and an outwardly tapered or inclined lower end disposed beneath the crown and legs of a staple in the drive track. In a method of fastening shingles to gypsum type roof decking, the staple is driven downwardly by the blade so that the legs are cammed outwardly by the anvil to impart an outward curl thereto as they enter the shingle and decking. The crown portion then engages the tapered anvil and is elongated at the expense of the leg length during the remainder of the driving stroke, the anvil being pivoted out of the drive track as the crown is elongated. The legs are curled within the decking to provide increased holding power and to prevent breaking through the inner surface of the decking, thereby avoiding decomposition of the decking resulting from condensation. The increased crown length provides an increased staple hold-down area with a consequent increase in tear resistance.
摘要:
A pneumatically operated stapler that has a single selectively operable adjuster operatively associated with a staple leg diverter. The single selectively operable adjuster is constructed and arranged to be adjusted within a range of leg deflecting positions to affect the lateral movement of the staple leg diverter. The different leg deflective positions effects an amount to which the diverter will deflect the legs of the driven staple during a drive stroke. A single operation of the single selectively operable adjuster both moves the adjuster and retains the adjuster in an adjusted position within the range of leg deflecting positions.
摘要:
A pneumatically operated stapler that has a single selectively operable adjusting mechanism that is constructed and arranged to be adjusted within a range of leg deflecting positions is disclosed. The stapler includes a staple leg diverting member that is carried by a portable structure for lateral movement into and out of a drive track. Successively driven staples are driven with a selected leg deflection between a minimum deflection and a maximum deflection. The adjusting mechanism is selectively adjusted within the range of positions to adjust the amount of bias of a biasing structure acting on the leg diverting member.
摘要:
A stitcher head having a swivel staple support member, driver and driver bar is so constructed that the support member rather than the driver shifts the swivel while the driver bar rather than the driver shifts the support member, thereby unloading the driver to a considerable extent.
摘要:
A stapling machine particularly adapted to form and drive staples into work when there is limited clearance between the stapling machine and other parts of the work, such as in stapling a picture frame, in which the staple is supported by a disappearing arbor as it initially moves toward the work and is then supported by a second arbor, which is preferably retractable itself, as the staple is being driven into the work.
摘要:
A wire stitching head is disclosed for successively producing a series of uniformly shaped and sized stitches from a continuous length of wire, and includes a frame; stitch forming means mounted on said frame for forming a pre-selectively shaped stitch from a pre-selected length of wire which has been supplied thereto; stitch driving means movably mounted with respect to said stitch forming means for driving the stitch formed by said stitch forming means into a work piece positioned in predetermined relationship with respect to said stitching head; wire feeding means for intermittently supplying said pre-selected length of wire to such stitch forming means from a supply of wire; and first wire guiding means mounted on said frame for guiding said wire toward said stitch forming means, with said wire guiding means comprising a base having an arcuate channelway therein, and a cover plate movably positioned on said base and movable between a first position in which the cover plate covers the channelway of said base and a second position in which said channelway in said base member is exposed.
摘要:
A machine is disclosed for performing an operation on a work piece passing therethrough with the machine including a work surface for supporting the work piece as it passes through the machine, advancing means for advancing the work piece in a first direction of travel through the machine, work application means for performing the operation on the work piece, and moving means spaced from the work surface for selectively moving the work application means in a second direction transverse to the first direction of travel; with the moving means comprising: a guide rail supported above the work surface; first and second guide strips secured to the guide rail on opposite sides thereof; a traveling support member, the application means being carried by the traveling support member, with the traveling support member including first and second bearing pads secured on the inner surface of the side walls thereof which are guidingly engaged by the first and second guide strips respectively, and driving means for causing the support member to travel along the guide rail. The bearing pads include a lip portion which engages an undersurface of a respective guide strip thereby preventing the support member from lifting, which is especially important during operation of the work application means. Further, a third guide strip is secured to the top surface of the guide rail, and bearing means are secured to the support member for cooperation with the third guide strip. The bearing means includes a pair of bearing blocks secured to the undersurface of the top wall of the support member and an elongated bearing rotatably supported at its ends in the bearing blocks, with the bearing rolling along the third guide strip as the support member travels along the guide rail. The bearing includes a pair of larger diametered flanges spaced apart by a distance corresponding to the width of the third guide strip whereby lateral movement of the support member is prevented. Preferably, all of the guide strips, and the bearing blocks are removably secured to their respective members to permit replacement.