US1122093A - Stapling-machine. - Google Patents

Description

A. H. PERRBLL, STAPLING MACHINE.

APPLICATION FILED 0GT.31,1913.

1,122,093, Patented De0.22,1914.

a 4 SHEETS-SHEET 1. R542 67 WITNESSES INVENTOR M M firm? fzwifzz ATTORNEYS A. H. FERRELL.

STAPLING MACHINE.

APPLICATION FILED 001". 31, 1913.

1,122,093, Patented Dec. 22, 1914.

I v I WW A TTORA'E Y 8 H. PBRRELL.

STAPLING MACHINE.

APPLIGATION FILED 00131. 1513.

Patented Dec. 22, 1914 4 SHEEJISSHBET 3.

WITNESSES A. H. PERRELL.

STAPLING MACHINE.

APPLICATION FILED 001531, 1913.

Patented 1030.22, 1914.

WHgTS-SHEBT 4.

INVENTOR flRT/ifll? /7. F525;; 4

ATTORNEYS I earner. n; mantra,- or APrLEroN; mrmmso'ra.

erasure-Manama:

specifleation'ofletter's Patent.

Patented Dec. 22,1914.

Application flit d. October 31, 1913. Serial No, 798,500.

T 0 all whom it may concern Be it known that I, ARTHUR H. FERRELL,

a citizen of the United States, and a resident of Appleton, in the county of Swift and State of Minnesota, have invented an Improvement in, Stapling-Mfachineaof which the following is a specification'.

My invention relates to stapling machines, my more particular purpose being to provide means for perforating the stock independently of the work done by the staple as the latter is driven into the stock, the perforation being made, however, and the staple being driven into or through the stock at practically a single operation.

In most of the stapling machines now in use, the staple is used to force a passage into or through the stock to be" operated upon and when the stock is hard or tough, as well as when the staples happen to be of small diameter in cross section, the staples are apt to buckle while being forced into the stock. What I seek to do, therefore, is to provide a machine in which needles are thrust through the stock and Withdrawn therefrom by the action of a machine and immediately after the needles are withdrawn, the staples are, by action of the machine, forced into position and clenched. By this means, it is practicable to use staples of comparatively small cross section, or if desired, to use staples much larger in cross section than the needle holes, the staples forcing their way through the material much more easily than would be the case in the absence of the holes made by the needles.

My invention further contemplates various improvements in stapling machines for the purpose of increasing the general etliciency of the latter.

Reference is to be made to the accompanying drawings forming a part of this specification and in which like letters indicate like parts.

Figure 1 is a side elevation of my iin pro'ved stapling machine, certain parts being broken away, the machine here being in its normal or idle position. Fig. 2 is a side View partly in section and partly in elevation, showing the machine as viewed from the side opposite that appearing in Fig. 1, and showing the parts as they appear when the treadlc is depressed, the needles now being thrust through the stock. Fig. 3 is a fragmentary view, partly in elevation and partly in section, showing the parts as they appear while the staples are being driven into the stock.' Fig. 4 is a detail showing; partly in elevation and partly broken away, the upper portionof the machine as viewed from the rear. Fig. 5 is a fragmentary elevation showing the front part of the machine, where the stock is operated upon. Fig. 6 is a detail View, partlyin elevation and partly broken away, showing the mechanism for clenching the staple, the parts appearing as in the actof clenching the.

staple; Fig. 7 is a view somewhat similar to Fig. 6, but showing the clenching mechanism as it appears before the staple is applied and after the stock is perforated for receiving the staple. Fi 8 is a detail showmg in perspective one or the clenching cams used for clenching the staple. Fig: 9 is a detail showing in vertical section the staple chute and staple driver, these parts also appearing at the right of Fig. 3. Fig. 10 is a section on the line 10-10 of Fig. 9, looking in the direction of the arrow. Fig. 11 IS a section on the line 11-11 of Fig. 1, looking. in the direction of the arrow.

A frame. pedestal is shown at 12 and is provided with an enlarged portion 13, the latter supporting a table 1 1. A treadle is shown at 15 and is journaled upon a shaft 16, the latter bein mounted in bearings 17 which are integral with the pedestal. A retractile spring-18 is connected with the treadle and with the base of the pedestal for the purpose of normally holding the treadle in its position indicated i Fig. 1.

A hooking bar is shown at 19 and is con-,

nected with the treadle 15' by a pivot pin 20.

This hooking bar extends through a bracket 21 secured upon the frame 12. spring 22 is mounted upon the frame 12 and engages the hooking bar 19. A roller 24 jo-urnaled in this bracket also 'enga es the hooking bar. The hooking bar 19 adjacent its upper end is provided with a thickened portion 25 and also with a notch 26. The hooking bar is further, provided, upon its upper end, with a convex surface 27. A lever 28 is journaled upon a ivot pin 29 supported by the framework. he lever 28 is thus adapted to rock. This "lever is rovided with a beveled end 30 of proper orm t0 fit into the notch 26.

The parts just described are so arranged A leaf ened portion 25 of the hooking bar is out of engagement with the roller 24, and the end 30 of the lever 28 occupies the notch 26 of the hooking bar. If, however, the treadle 15 be depressed, so that the hooking bar is drawn downwardly, the thickened portion 25 of the hooking bar, by engaging the roller 24, moves the upper ortion of the hooking bar bodily to the rig it according to Fig. 1, thus bending the leaf spring 22 and removing the upperend of the hooking bar out of engagement with the lever 28.-

Mounted upon the under side of the table 14 and extending downwardly from the front edge thereof is a bracket 31. This bracket is provided with oppositely disposed grooves 32 and in connection with said grooves serves the purpose of a slide- Wa Mounted within this slideway'is .1 slit e 33, the general form of which may be understood from Fig. This slide is provided with two slots 34, 35, the walls of the slots being slightly curved, as may be understood from Fig. 3. 2

The lever 28 is provided with a straight portion extending through the slot 34 and is used for raising the slide 33. Another lever 36 extends from front to back of the machine and is mounted upon a pivot pin 37 supported by bearings 38. One end of this lever extends through the slot 35,1518 indicated in Fig. 3.

At the rear of the machine is a slideway 39 and mounted within-thisslideway is a slide 40 carrying a boss 41 and a shoulder 40". One end of the level-36 is partially Within the path of travel of the boss 41, as may be understood from Figs. 3 and 4. The lower end of the slide 40 is connected by a pivot pin 42 with a pitman 43.. This pitman is, by aid of a pivot pin 44, con-' nected with the rear end of the treadle 15. The lever 36 extends through a slot 45 in the frame 12, as may be understood from Fig. 4.

The slideway 39 is provided with a slot 46 -(see Fig. 3,) and extending into this slot is a lever 47. This lever is mounted upon a pivot pin 48, the latter being supported by a horizontally extending arm 49 forming essentially a part of the frame. The shoulder 40, with which theslide 40 is provided, is arranged to engage and lift lthe adjacent end of the lever 47. A leaf spring 50, supported upon a boss 51, presses upon the lever 47 as may be understood from Fig. 3, and tends to maintain the left end of this lever, according to Fig. 3, in normal position. I p

Carried by the upper end of the slide 40 and integral therewith is an arm 52, which because of its form and purpose, I call a cam. It is shown in Figs-.2 and .This cam is movabl within the slldeway 39. A pitman 53 is provided at one of its ends dicated in Figs. 6 and with two rollers 54, 55, these rollers being disposed upon opposite sides of the can1 52. The pltman 53 extends through the slideway 39 and is connected with a lever 56 by a slot 65 in this arm. The presserfoot is pro vlded with an upwardly extending portion 66 which fits into a slideway67.

A staple driver is shown at 68 a'n'd is slidably mounted within b a ivot in69. A staple chute is shown y p p a trough extending obliquely upwar The presser foot 62 is provided with a' compartment 71 in this com This staple older is mounted upon apivot pin 73 and is engaged by-a spring 74. The pressure of the spr1ng'74 normally tends to maintain the staple holder 72 in the position indicated in Fig. 9. lVhile'in this posithe portion- 66 of the presser-foot. The staple driveris connected with the lever 47 (see Fig. '9) and mounted artment is a staple holder 72.

at 70 and isfsimply tion it supports a singlestaple 75. A number of these staples are located in the chute 70 and as they descend, by gravity,'they are each brought successively into engagement with the staple holder 72 ,and supported by aid thereof.

The staple driver 68 is lower end with a fiat blade '76, andinregistry with this blade is a slot 77 with which the. presser foot 62 is provided.

Two brackets upon the slideway 31 and extend toward each other and also extend upwardly, as in- 7. J ournaled upon these brackets are two cams 79, each having the general form of a semi-disk, asindicated more particularly in Fig. 8.' Each cam is provided with, a slot 80. Engaging each cam 7 9 is aspring 81 which also engages the adjacent bracket 78. The tendency of the springs 81 is to turn the cams in opposite directions, the normal positions of the cams provided its v 78 are mounted rigidly being indicated in Fig. 6. The cams are 112:)

needles are disposed parallel, with aeh other-and extend. directly; upward. v

'nionntedewithin the needle holdelux'lhese same time are very efi'ectively braced as will be understood from Fig. 6.

A piece of stock is shown at 86. A gage plate is shown at 87 and a gage screw at 88.

A hand wheel 89 is mounted rigidly upon the gage screw 88 for the purpose 9f turning] the latter. As this is done, the gage plate 87 is moved tothe right or left according to Fig. 2, so as to adjust itself against the stock 86 and also, if desired, to move the stock to the right according to this figure.

As the needles 85 are thrust through the stock 86, they make two holes 90 through which the staples are to be driven, at the same stroke of the treadle.

The operation of my device is as follows: The parts being arranged and assembled as indicated and the chute 70 being wholly or partially filled with staples 75 and the various movable parts being in their respective normal positions, a piece of stock 86 is placed upon the table let and evenly pressed back against the adjustable age plate 87 and otherwise properly adjusted relatively to the location of the staple driver 68. lVith the parts in the positions here indicated, one of the staples 75 is supported by the staple holder 72 at a point immediately over the slot 77, as willbe understood from Fig. 9. The operator now places his foot upon the treadle l5, and depresses the trcadle. At the beginning of the stroke the slide 40 is caused to rise, so that the cam 52, by its action upon the rollers 54, 55, operates the pitman 53 and thus forces the presser foot 62 firmly down upon the stock. The bar 19 descends with the treadle, and trips the lever 28. This raises the slide 33 and causes the upper portion of this slide to rock the cams 79. The needles 85 extend into the cam grooves 80, so that the cams brace the needles as above described. As the cams are turned by the slide 82, they continue to brace the needles and when the cams are turned completely into the positions indicated in Fig. 7, the needles are thrust through' the stock 86. As the treadle 15, under the impulse of the operators foot, reachesthe lower portion of 1ts stroke, the

thickened portion by engaging the roller 24 causes the end of the lever 28 to bedisconnected. This leaves the slide 33 free of control of the lever 28. As the treadle reaches the proximate lower limit of its travel, as indicated in Fig. 2, so that the p1tman 43 and the slide -10 are nearly at their respective uppermost limits of travel, the

lug 41 engages the adjacent end of the lever 36 and rocks this lever. The action of this lever retracts the slide 33 into its normal position and in so doing Withdraws the needles from the stock and also allows the cam 79, under control of the springs 81, to rock back into their respective normal positions, as indicated in Fig. 6. The up stroke of the slide 40 causes the lever 47 to rock slightly in a clockwise direction, as indicated in Fig. 3. This causes the staple driver 68 to descend, and in .so doing to force the staple down through the stock 86, the points of the staple following the holes previously punched in the stock by the nee dles 85. As the staple is driven through the stock, as indicated in Fig. 6, the points of the staple engage the massive portions of the cams 79, so that the points of the staple will bend toward each other and thus be very elfectively clenched as indicated in Fig. 6; that is to say, the legs of the staple first. enter the grooves 79 carried by the'mas sive parts of the cams 79, and are deflected or bent toward each other and enterin the grooves 14* of the table 14.-

- clenched.

are effectively As each staple is used, its place below the staple driver 68 is taken by the next successive staple, as may be understood from Fig. 9. Each time the lever 47 is rocked slightly in a clockwise direction according to Fig. the ascent of the cam 52, by its effect upon the cams 54, (see Fig. 2) drives the pitinan to the right according'to Fig. 2 (left according to' Fig. l) and thus rocks the lever 56 and causes the arm 58 to move the presser foot 62 downwardly and into engagen'ient with the stock. The engagement of the presser foot 62 with the stock takes place just after the needles enter the stock,

and remains inthe position until the holes are punched, the needles withdrawn, and the staple driven and clenched. The staple being driven and clenched as just described, the operator moves his foot from the treadle l5, and thereupon various movable parts resume. their respective normal positions, as

indicated in Fig. 1f

\Vhile in this instance I show the needles, cams and staple..driving mechanism as located in immediate proximity to one edge of the table, it will be understood that they may be located otherwise, depending upon the character of the work, as the distance of the edge of the table from the other parts just mentioned is immaterial in so far as the principles of my invention are con cerned.

I do not limit myself to the precise arf rangementshown, as variations may be made therein without departing from the spirit of my invention.

I claim v 1. In a stapling machine, theconibination of means for holding a piece of stock to be operated upon, a slide carrying needles for punching holes through said stock, mechanism for supporting a staple adjacent said piece of stock while said holes are being punched through the same, a staple driver for forcing a staple through saidholes, means controlled by said slide for engaging and clenching said staple, and mechanism common to said slide and to said staple driver for actuating the same in a definite order of succession.

2. In a stapling machine, the combination of means for supporting a piece of stock to be operated upon, a slideivay disposed adjacent said piece of stock, a slide mounted within said slideway, needles carried by said slide for punching holes through said piece of stock, a lever engaging said slide for the purpose of actuating the same, a treadle, a bar pivotally connected with said treadle and provided with a hooked portion for engaging said lever in order to actuate the same, means controllable by motions of said bar for disengaging said bar from said lever when said treadle is nearly at the limit of its stroke, means for actuating said bar, a staple driver, and mechanism connected with said staple driver and with said treadle for causing said treadle to throw said staple driver into action after said bar releases said lever. l

3. A stapling machine, comprising a frame provided with a table for supporting stock to be operated upon, a pair of cams journaled relatively to said frame and provided with grooves, a slide movable relatively to said frame and provided with a portion for engaging said cams in order to rock the same, needles carried by said slide and engaging said. cams so that as said cams are rocked they brace said needles adjacent the pointswhere said needles are thrust into the stock, means for withdrawing said needles from said stock, a staple holder, Ineans f or feeding: staples into engagement with said staple vfielder, and a staple driver located aitljace 'itsaid cams for the purpose of forcing the staplesthrough said stock, by aidbf made by said needles. 1

thehole l 4'. A'stapling machine comprising a table for supporting apiece of stock, a slide mov able relatively to said table, a needle holder carried by said slide, needles carried by said needle holder, meanscontrolled by the said slide for bracing safi liwi-na fdles aid needles are thrustthrough tlietstoclc, a staple driver for driving gi.staple through holes made in said stoclg.by,saidaieed'les and for forcing the staple intocngagement with the said slide controlled,;ineans, and mechanism for withdrawing saidlstaple' driver. Y

In a staplingmachine, theeombination of a frame, a table supported thereupon for holding a piece of stock, a slidewsiylowithin the path of cated adjacent said table, a slide movably mounted within said slideway, needles carried by said slide, cams located partlally travel of said slide and located adjacent the path of travel of said needles for the purpose of bracing said needles, and staple driving mechanism lo cated above said table for the purpose of forcing staples through the holes made by said needles, said staple driving mechanism being so located that a staple driven by it is forced into engagement with said cams and thereby clenched.

(3. in a stapling machine, the combination of a frame, a slide movable relatively'to said frame, a needle holder carried by said slide, a' pair of cams each having substantially the form of a semi-disk and provided with a groove, said cams being'located partially within the path of travel of said slide and arranged to be actuated by movements of said slide, said grooves being so located as to receive needles carried by said needle holder and to guide said needles relatively to the stock to be operated upon, and staple driving mechanism located adjacent said cams for the purpose of forcing a staple through the stock and of clenching said staple against said cams.

7. In a stapling machine, the combination of a movable relatively thereto, a needle holder carried by said slide and adapted to hold needles to be thrust through stock, a presser foot located above said slide, a staple holder mounted ivithin said presser foot, a staple driver slid-ably mounted within said presser foot, andmeans common to said slide, said presser foot and said staple driver for actuating them in a predetermined order of succession.

In a stapling machine, a table for supmrting stock to be operated upon, a slide arranged )UlOW the table and movable toward and from the same, needles carried by said slide for piercing the stock, a presser foot for engaging the stock, means for re tracting the slide to withdraw the needles from the stock, a staple driver for forcing a staple through the openings made in the stock, and spring controlled means normally held in position for engaging the staple to clcnch the same, .the said slide when raised operating to engage and move the said clenching means out of operative position relative to the staple, and when lowered opcrating to release said clenching means.

l n a stapling machine, the combination ot a frame, a slide mounted therein and movable relatively thereto, a needle holder slide and adapted to hold nm-idlesto be thrust'through stock when the carried by said slide is raised, a prcsserfoot located above said slide, a staple driver slidablymounted within said presser foot, a second slide,

means l'ur actuating the resser foot and the saiil staple (lliYPl' from the sai l second slile. aml means eunneeted .rilli the said sliiles 'l'nr aeiilating ill! same. I

ll). stapling maehiue, emnprising a fr me prn illeil with :1 ialile for supporting stnrl; to l)\ operated lipim. a sliile arranged lieln'vu saiil talile aml movable tu\\'ar l annl l'rmn {lie same neeilles earrieil by said slitle l'ur mini-hing holes tliruugh saiil stock, a lrezulle. a lever engaging sniil Sll(l0. n'ieans 2I('il!22i\(l liy liie treailli; l'mmoving said lerer tn raise the sliile. means for disengaging sziitl lerer, a second slide actuated from the treailie. a lever engaging the first sliile and controlled by the second slide for returning tlie illst slide to normal position, a piesser foot. means actuated by said secuml sliile l'nr 'l'ureilig said presser luot ilown Hpnl. ilie sturlc, a staple driver. and means tmemulating the staple (lllYkl' from the :.l(l er mrl sliile.

Images