US1830650A

US1830650A - Stapling device

Info

Publication number: US1830650A
Application number: US462195A
Authority: US
Inventors: Theodore S Falk
Original assignee: Individual
Current assignee: Individual
Priority date: 1930-06-19
Filing date: 1930-06-19
Publication date: 1931-11-03
Anticipated expiration: 1948-11-03

Description

T. s. FALK Nov. 3, 1931.

STAPLING DEVICE Filed June 19, 1930 A TTORNE YS numlmm'l'w i Z@ //3 I Patented Nov. l3, 1931 UNITED STATES {PAT'E TnEonoRn s. FALK, or BRooKLYN, NEW YORK sicriutlirer DEVICE Application y.filed J une 19,

that provision is made of a pair of opposed j handles, one carrying an anvil'and the other a driver, and a staple magazine interposed between the handles, the'arrangementbeing such that all of the operating parts are mounted within rand between the boundary surfaces of the handles so that the hand of an operator is fully protected by the handles against injury by the operating parts.

It is aV further object of the invention to includes a staple magazine and staple'fe'eding means of the kindl adapted to handle unconnected, preformedA staples. Such `staples involve no metal severingv operation, and hence may be set bya handdevice without resort to force multiplying mechanism if the 'staples are formed of. thin wire, Such thin wire staples are also very advantageous in a hand operated device, because a large number of them may be stored upon a magazine of moderate length. InY order that the staples may ybe formed of thin wire, it is important that the staple legs be supported through their entire lengths at the penetration of the work. It is accordingly a feature of this invention thatl the magazine, which is movable away from the separation ofthehandles to provide a work receiving opening, is moved to engage "the work and clamp it firmly against'` the anvil ina preliminary stage of the setting operation and before the staple is driven against the work. s'

It is a further feature of the invention that the gripping portions of the handles are situated closely adjacent the driving point, that the stroke of the handles is short, and that the handles are Constrained toV move in' parallelism. As a result of thisarrangement the staple setting device may be very quickly and 50 accurately positioned with reference to the the anvil at f handles are valways 1930. serial No. 462,195.

work, and the `handles maybe fully operated at a', single operation without any necessity Afor shifting the grip inthe course of the operation.

Other objects and advantages will hereinafter appear.

YIn the drawings forming part of this specifica-tion; n

Figurelis a side elevation, partly broken away. of" a stapling device embodying features of the invention;

VFigure Q'is a rear elevation of the device of Vliigure l Figure 3 is a sectionalvview taken `on the line 3 3 of Figure 1, looking `:in thedirection of the arrows;

Figure tis`- a plan view of a vdriver vsup- Y e porting plate; and provide a hand 'operated'implement which Figure 5 is a plan view of the anvil.` The illustrative devicev comprises upper andjlower handles V1 and 2 connected for parallel motion toward and from one another by crossed links 3 vand 4, which links are pivotally connected at their centers'by suitable means, such Vas a rivet 5. The link is pivotally connectedA at its upper forward end to the handle 1 by means of a pivot bolt 6 and is slidingly connected at its lower rear end to the' handle 2by means of afbolt 7 which plays :in slots V8V formed in opposite sides of the handle.v `The link 4 is pivotally connected'at its lower forward end to the handley 2 by means of a pivot boltf9 Vand is slidingly connected at its upper rear end to the handle l by means of abolt l0 that plays inslots 11 formedy in 'opposite sides of thehandle 1.Iv

"The slots 8 and ll are. parallel to one'another, andsince the

links

3 and 4 are c'onnected to one another at their centers,- the with one another throughout their relative movements. A coil spring 12 is stretched be? tween the bolts 6 and 10 and always tends` to draw them toward one another, vand hence to pull the handles apart to the limitingV posi` tion illustrated inF-igure 1. The handle? Ycarries an anvil 13.` The handle 1 carries a Vdriver 14. The upper end of the driver 14 Nr oFFlc-E maintained in parallelism has an enlarged head which'lies 'inarecess of the handle 1. vThe recess 15 looselyV a pivot pin w60 .staple .standing v 65-5119- .magazine from moving farther upward than tion illustrated by engagement of its tail portion 21 with the bottomofarecess-22`formed jingfthe. ,rea-r. portion .of fthe handle. 2... The `magazinexcompris'es .a staplesupporti-ng bar i alld .upright side members 24', which .in- `clude top flanges 25. The supporting bar 23,

A; no together withthe. nprights .24 vand the flanges 25 thereof, form in e ect a continuous sub.- stantialhy :inclosed `channel .26 iforthe staples 27 which in cross section i'sin theform of laninverted U. The channel 26at its forward .-25 end .lets into .a vertically extending driving` throat 28 which is justfwide-enough to receive one staple: at aztime.y Thestaples `:are urged forward toward this driving throat lby -means .o.f-,;al.-Ue.shaped .feeder29 which rides -.30.u,pon the magazine bar 2.8 behindthe Astaples and pushes them forward. 'A coil spring ..30 is housed in ,-a l:recess 31 .formed in the .handle 1, being secured at its inner endete a center pin 32;.y `Saidpin yisfiiiedljymounted in slots i 35 formedinthehandle'l,'whichslotsare-closed .at their. .lower ends by the retaining -plate 16.

Thisspri-ng-isrconnected to thek feeder29 yby -a screw 33 and constantlyurgesthe feeder-.fore ward. A fgap is providedbetween .the flanges f `25-to accommodate the spring` in. its travel..

The 'forward .end of the magazine 1S carnies .fan armf34upon which afleaf springjfis mounted., This leaf spring, as shown, Vis Vdoubled back .and extends `through aslot-into .45 'ithedrivi-ng. thro at in: a positionsuch 4.that it is .,straddled by the single staple `present .in .the jdrivingfthroat. I The spring 35 `supports.this Staple.' and prevents the ejection of .it-until artt-er the magazine has been depressed to f The operation of ythe .device Lis as' follows:

rEhe parts Y normally occupy the 'position' .shown idF-figure 1. Sheets .to beistapledtogether are inserted infthe space provided f 55 .between .the anvil and .thev magazine,.and the handles are then squeezed ktoward onel fanothjer. .The lirstweect of the squeezingftogather of the handles istonmove the driver lfledownv intoengagement .with -thetop Vofthe this staple is'supported-byfthe leaf spring 35, .hewevenjthere is no'jfurther relative. movenient. of .thedriver and the magazine fer-the .tiniebeingandthe'two .-move.-.in .unison until has been clamped. lfirmly 'nthe dri-vingthroat. vSinceagainst the work. When the magazine is thus positively arrested, the relative movement of the driver and the magazine is resumed, the driver acting to forcethe staple down the driving throat and through the work, and to cause the staple legs to be .clinched by theanvil. v

f The .gripA uponuthehandles is nocw relieved, with the result that the handles are-restored V`by tli'es'pring 12 to the position shown in Figiuirel.; 'This.-mitlrdrawvs thel driver 14 part way from the driving throat, as seen in Fig- `-rrre--12-- the driver clears the staple passvagethefeeder forces the staple stack forward in the' magazine and causes the foremost remeaning; .staple ato enter the driving throat. The .leaf spring. ,35 has by; this rtime been' restored to its initial position, fand is,,there Sfere, in :a position to ,support .this `end staple. r'lfhe. magazine .anon-es upward-.substantiall .inunison with the handlel inthe preliminary upward Vmovement .of said handle. There is not, therefore, any danger whatever ofthe driver bei-ngi.eompletely withdrawn .from .the driving .throat at anytime..

It will :be observedthat lsince -thehandle 1 remains. in parallelism to vthehandle 2 while fthe anvil is pivotally mounted :on the handle 2,E there. vwill be some; slight. relative. pivotal 'niovement of 4the anvil fand fthe handle .1.. ItY

commodate itself .tofthe angleof inclinationof thedriving throatatell times..

ltwill ,he observednlso.. that allmoving parts .of...tlre devicenre, inclosed within...the

`contoursurfaces.of .theghandles, `.the .outer 'handle walls .beingtrecessed for lconcealing .the bolts 6, .9..and'v 10, `andi/.actually Y.extending. outwardbeyondthe, bounds ofl all ofthe otherparts. Y

fWhle I have. illustrated .described iin .detail .certain .embodiments of l.the invention .it should .be understood .that `changes Ymay :be

.made therein. I do not, therefore, desire .to

flimitimyselff to the specifielconstruction-illustrated, but rintend `to covenmy invention ,roadly-inwhateyer form itsgprinciples may;

be utilized y Icl'aimz.

` imThalia'.Stapimgiinpiemene,.ineene 'binatiomaspair (of ,opposed handlesmevable V4toward vandfrom one .another,.-means vfon urging the handles apart, .an anvil carried by one of the handles, a driver'carried .by the other, a; magazine: interposed between which... it', .is -l mounted, said handles y,ilgin'tly a. housingjor substantially enclos f the vhandles and mounted onv the anvilcarrying handle ,with Aciqeacity Efor movement :rel ative tlieret'o, and means for. yieldingly urgf ing` 'the magazine away from the handle-alpen 2. In a hand stapling implement, in combination, a pair of opposed handles movable toward and from one another, an anvil carried by one ofthe handles, a driver carried by the other, a magazine interposed between the handles and mounted on one of the handles with capacity for movement relative thereto, means for yieldingly urging the magazine away from the handle upon which it is mounted, and means for limiting separation of said` handle and the magazine, said handles jointly forming a housing for substantially enclosing the other parts.

3. In a hand stapling implement, in combination, a first handle, a driver carried thereby, a second handle, an anvil carried thereby, a staple magazine mounted on the second handle with provision for movement relative thereto, means normally urging the magazine away from the handle on which it is mounted, and means for causing the magazine to be moved toward said handle before a staple is driven against the work, said handles jointly forming a housing for substantially enclosing the other parts.

4. In a hand stapling implement, in combination, a first handle, an anvil carried thereby, a second handle, a driver movable therewith, the handles being movable toward one another to set a staple, means urging the handles apart, a staple magazine for individual preformed staples having a driving throat, means constantly urging the staples toward the driving throat, means urging the magazine away from the anvil carrying handle, and means for causing the staple magazine to be moved toward the anvil carrying handle into position to support the staple legs continuously at the work penetrating operation before the staple legs are driven against the work.

5. In a hand stapling implement, in combination, a pair of handles, means directly interconnecting the handles and urging them apart, a staple magazine interposed between the handles and mounted on one of them but movable relative thereto, means urging the magazine away from its supporting handle and means for moving the magazine toward said handle into work clamping position before the staple is driven against the work. u

6. In a hand stapling implement, in combination, a pair of handles, means directly interconnecting the handles and urging them apart, said means also constraining the handles to move in parallelism, a magazine for individual preformed staples interposed between thek handles and having a driving throat, and means constantly urging the staples toward the driving throat, said handles jointly forming a housing for substantially enclosing the other parts.

7 In a hand stapling device, in comb-ination, a first handle, an anvil carried thereby,

a staple magazine pivoted on said handle and having a driving throat, a second handle, means interconnecting the handles and constraining them to move in parallelism, andV a driver swingingly vmounted on the second handle and guided by the driving throat.

8. In a hand stapling device, in combina# tion, a first handle, a driver loosely carried thereby, a second handle, an anvil carried thereby, means interconnecting `the handles for parallel movement and urging them apart, a magazine for individual preformed.

staples pivotally mounted on the second handle and having a driving throat, means for feeding the staples toward` the driving throat, means urging separation of the magazine and the handle by which it is carried, means limiting such separation, and means mounted on the magazine and yieldingly opposing movement of the driver relative to the magazine so that upon approach of the handles movement along the driving throat of the staple to be set will be prevented until the magazine has been moved into work engaging position.

In testimony whereof I have aiiixed my signature to this speciiication.

THEODORE S. lFALK.