US2667638A - Removable staple supporting slide for stapling machines - Google Patents

Description

Feb. 2, 1954 s, s L 2,667,638

REMOVABLE STAPLE SUPPORTING SLIDE FOR STAPLING MACHINES Filed May 5, 1951 2 Sheets-Sheet l Feb. 2, 1954 s. SEGAL 2,667,638

) REMOVABLE STAPLE SUPPORTING SLIDE FOR STAPLING MACHINES Filed May 5, 1951 2 Sheets-Sheet 2 Patented Feb. 2, 1954 REMOVABLE STAPLE SUPPORTING SLIDE FOR STAPLIN G MACHINES Samuel Sega], New York, N.

Wilson-J ones ration of Massachusetts Application May 5, 1951, Serial No. 224,700 3 Claims. (01. 1-3) This invention relates to a removable staple supporting slide for stapling machines, particularly toa staple supporting slide that will automatically snap into latched relationship with the machine and will enable the last staple in the machine to be driven through the exit channel.

It is an object of the present invention to provide a stapling machine with a staple supporting slide that snaps into place automatically when it is properly positioned and will stay in place until its latch is released. It is a further object of the invention to provide a staple supporting slide with latching means that may be readily released to permit removal of the staple supporting slide. It is a further object of the invention to provide a simple and efficient latch that will expedite removal and replacement of the staple supporting slide in the stapling machine. Another object of the invention is to provide a feed plate that will enable the last staple in the machine to be fed to the exit channel. Other objects and advantages of the invention will become apparent upon reading the following description, taken in conjunction with the accompanying drawings, in which:

Figure l is a perspective view of a stapling machine embodying the invention;

Figure 2 is a perspective view of the stapling machine with the body portion swung around its pivot;

Figure 3 is an enlarged fragmentary bottom plan view of the staple supporting slide in the position shown in Figure 2;

Figure 4 is a longitudinal sectional view, taken along the line =l--t of Figure 3;

Figure 5 is a longitudinal sectional view, taken along the line 5-5 of Figure 3;

Figure 6 is an inverted perspective view of the staple supporting slide;

Figure '7 is a fragmentary bottom plan View showing the staples positioned. in the machine with the body portion swung on its pivot about the base, as shown in Figure 2, but with the staple supporting slide partially removed therefrom;

Figure 8 is a fragmentary bottom plan view, similar to Figure '7, but showing the staple supporting slide positioned in the machine;

Figure 9 is a fragmentary inverted perspective View of the staple supporting slide with the feed plate spaced from the staples and with parts broken away to illustrate the relationship between the staple supporting slide, the feed plate and the staples; and

Figure 10 is a cross sectional view, taken along the line Iti B of Figure 3.

to register with recess [5.

Y., assignor to Company, Chicago, 111., a corpo- In the drawings, thereference numeral 2 indicates the base portion of a stapling machine having abody portion 3 pivotally secured thereto, as indicated at 4. The body portion is provided with ahead 5 mounted on a plunger 6 for driving the staples l which are mounted on a removablestaple supporting slide 8 fitting in arecess 9 in the bottom of thebody portion 3. Therecess 9 is defined by the side walls It and I l, and the front wall l2 of the body portion. The rear end of therecess 9 is left open to permit thestaple supporting slide 8 to be inserted into and removed from the recess. The side walls It] and H are provided with longitudinally extending recesses l3 and M, respectively, as shown in Figure 10. The rear end of thebody portion 3 is provided with a vertica1 recess [5, as shown in Figure 4, for a purpose hereinafterdescribed.

Thestaple supporting slide 8 comprises a channel shaped member having a top wall It, side walls l1 and I8, and a rear end wall I9. The side walls ii and i8 are provided with lateral flanges l1 and I6, respectively, fitting in recess [3 and M to hold thestaple supporting slide 8 in its proper vertical relationship to thebody portion 3 of the stapling machine. Aresilient spring member 25 hasone end projecting through an opening 2i in the top wall it and secured to the underside of the top wall by arivet 22 or in any other suitable manner. Astud 23 is rigidly secured to the spring member 2:} so as to project upwardly from its top surface. Preferably the top surface of the stud is beveled, as indicated at .24 (Figurev 4) so that the stud will ride over therear edge 25 without difiiculty when thestaple supporting slide 8 is moved forwardly to position it in thestapling machine. The rear edge of the stud forms a vertical abutment engaging the side ofrecess 15 when the staple supporting slide is moved forwardly far enough to allow thestud 23 When the stud is in vertical alignment. with the recess [5 the resilience of thespring member 29 causes it to snap into latching position from which it can not be accidentally displaced. Themember 28 is provided-with anintegral portion 26 which projects beyond the rear end of the body portion of the stapling machine when thestaple supporting slide 8. is .in its latched position. Theportion 26 of spring member 2.3 may bev easily moved by finger pressure to release thestud 23 from the recess !5 so that the staple supporting slide may be removed from the machine.

Arod 2? is mounted instaple supporting slide 8 with one end supported by end wall is and theslot 36. asslots 36 and fit snugly therein. The front edge other end supported by alip 28 struck from the top wall It or" the staple supporting slide. Either end ofrod 2? may be provided with an enlargedhead 29, and the other end is peened over, as indicated at 39, after the rod is assembled into position. The feeding mechanism comprises a channel shapedfeed plate 3| having atop wall 32 fitting over top wall [6 of the stable supportingslide 8, andside walls 33 and 3d straddling side walls I! and IQ of the staple supporting slide. The side walls I! and I8 of the staple sup-porting slide are provided with longitudinally extendingslots 35, and theside walls 33 and 34 offeed plate 3| are provided withslots 36 adapted to register with theslots 35.

A channel shapedmember 31 fitting against the inner surfaces of top wall It and side walls l1 and it of thestaple supporting slide 8 has a pair. of outwardly extendinglateral flanges 38 which project through one of theslots 35 and into the Theflanges 38 are of the same length ofmember 37 is provided with alip 39 which is apertured so as to fit on the rod 21. A coiledspring 40 embracing the rod 21 has one end abutting the rear end I9 of thestaple supporting slide 8 and its other end abutting thelip 39 so as to urge thefeed plate 3| forwardly to feed the staples l to the exit channel M. Theforward edge 3! of thefeed plate 3! extends forwardly n of themember 3? far enough to be flush with the forward edge of the staple supporting slide whenlip 39 is positioned against lip 28 (see Figures 5 and 6). Thelip 39 projects vertically beyond the edge oflip 28 so that it may be engaged by the users finger to retract thefeed plate 3! against the action of spring Ml.

The stapling machine may be loaded by partially removing thestaple supporting slide 8 when the stapling machine is in the position indicated a in Figure 2, placing the staples l in therecess 9, with their legs extending upwardly, and then sliding the staple supporting slide forwardly until thestud 23 snaps into the recess IE to latch the a staple supporting slide in its proper-position. The

machine may also be loaded in the position shown in Figure 1 by removing thestaple supporting slide 8 from the machine, manually moving thefeed plate 3! to its rearmost position and holding it there, then positioning the staples on the top wall It forwardly of the feed plate, with their legs straddling the side walls H and i8; and then sliding the staple supporting slide into the recess I9. Thefeed plate 3| must be released slightly before thestud 23 snaps into the recess IE), but this does not interfere with the loading operation because the major portion of the staples are retained between thestaple slide support 8 and the walls of the recess I9, and thestud 23 snaps into the recess l5 immediately after thefeed plate 3! is released.

Although I have described a preferred embodiment of my invention in considerable detail, it willbe understood that the description thereof is intended to be illustrative, rather than restrictive, as many details may be modified or changed without departing from the spirit or scope of my invention. Accordingly, I do not desire to be restricted to the exact structure described, except as limited by the appended claims.

I claim: 1. In combination, a stapling machine having a body portion provided with a recess at its bottom, a staple supporting slide slidable in said recess, a resilient member secured to said slide, a stud mounted on said resilient member, said stud being engageable with said body portion to releasably hold said staple supporting slide in predetermined position in said recess, a feed plate mounted on said staple supporting slide, said feed plate being movable longitudinally relative to said staple supporting slide, a member mounted inside said staple supporting slide, said member being rigidly secured to said feed plate and having a lip projecting inside said staple supporting slide, whereby said feed plate may be manually retracted from its staple feeding position, and a ,second lip projecting into said staple supporting slide, said second "3. A channel shaped staple supporting lip being engageable by said first mentioned lip tolimit the forward movement of said feed plate relative to said staple supporting slide, the forward edge of said feed plate extending forwardly of said first mentioned lip a distance equal to the distance from said second lip to the forward end of said staple supporting slide, whereby the forward end of said feed plate is flush with the forward end of said staple supporting slide when said feed plate is in its most forward position. I

2. A channel shaped staple supporting slide having longitudinal slots in its side walls, a longitudinally extending rod secured in fixed relationship to said slide, a feed plate mounted on said slide, said feed plate having slots in registration with said first mentioned slots, a member slidably mounted on said rod, a spring effective to move said member forwardly relative to said slide, and means to move said member rearwardly against the action of said spring by manually applied force, said member having lateral flanges through said first mentioned slots and into said second mentioned slots, whereby said feed plate is moved by movement of said member.

slide having longitudinal slots in its side walls, a feed plate straddling said staple supporting slide, said feed plate having apertures aligned with said slots, a member mounted inside said staple slide,

a spring positioned in said channel shaped slide,

said spring normally urging said member forwardly relative to said slide, means for moving said member rearwardly relative to said slide by manually applied force, said member having projections extending through said slots and fitting snugly into said apertures, whereby movement of said member is effective to move said feed plate relative to said staple slide.

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