US2460930A - Fastener attaching machine - Google Patents

Description

Feb. 8, 1949. 5 GOQKlN FASTENER ATTACHING MACHINE a Sheets-She et 2 Filed May 3, 1946 fizz/6n for syluas terLGoofrin Feb. 8, 1949.

S. L. GOOKIN 'FASTENER ATTACHING MACHINE Filed May 3, 1946 4 Y 8 Sheets-Sheet 3 liven for 3y Ives zcr Goo/fin b- 1949- s. L. GOQKIN FASTENER ATTACHING MACHINE v 8 Sheets-Sheet 4 7 Filed May s, 1946 Inventor SylveslerLGaokin Feb. 8, 1949.

S. L. GOOKIN FASTENER ATTACHIN G' MACHINE 8 Sheets-Sheet 6 Filed May a, 1946 y hzls i1 5 Feb. 8, 1949. s GOOKIN 2,460,930

' FASTENER ATTACHING MACHINE Filed May 5, 1946 V 8 Sheets-Sheet 7 [In/en far Feb. 8, 1949.

s. L. GOOKIN 2,460,930

FASTENER ATTACHING MACHINE Filed May 3, 1946 8 Sheets-Sheet 8 fizvcnfor SyZI/e far 1.. Gooirin Patented Feb. 8, 1949 r UNlTED STATES PATENT "OFFlcE- I V v ASTENER MACHlNlE i I i a I i I i r 2 Sylvester L. Gookin, Quincy, Mass, assignor to United Shoe-Machinery Corporation, Fleming-,-

ton, N. J., a corporation ofN'ew Jersey Application May 3, 1946, Serial No. 666,991' 7 The purpose ofthe present invention is topro V vide improvements in machines for attaching fasteners to sheet material, and more especially tubular fastenersthrough which pointed spindles may extend to pierce holes in the'sheet material for the reception of the tubular portions of the fasteners. The problem to which the invention is primarily related is to providevapowereoper ated machine for doing suchjwork morerapidly than it can be done with hand-implements of-the type set forth in United. States Letters Patent No. 2,422,405, granted June 17, 1947 in my name.

The aforesaid copending application discloses a typical example of work in which six small'individual eyelets are used to connect a grommet and a washer in process of being attached thereby 'to a heavy canvas product such as a tarpaulin.

The same type of work is illustrated herein, but

in this disclosure the tubular .fasteners corresponding to the siX small eyelets areall integralportions of a grommet instead of individualelements, as formerly represented. The integral construction is not essential to thepresentinvention, although it is preferable because it "saves much time in handling and assembling 'theocomponent parts of such a grommet and washer combination. The novel features embodyingthe invention and hereinafter set forth are useful for installing fasteners singly, with or without washers, as well-Q:

as for gang eyeleting with or without washers. Therefore, to stateathe principlesof the invention in their simplest terms, certain features thereof will first be described with regard to "just one tubular fastener such as an eyelet.

A machine embodying the invention as herein illustrated includes an anvil on which an-eyelet may stand on end. The anvil is provided with L a pointed spindle to localize the eyelet and pierce the eyelet-receiving material, if necessary. The I spindle is telescopically related to the anvil to be depressed by an eyelet-setting tool, but is normally raised by a spring and periodically locked :in its upper position where its point will extend :above the barrel of the eyelet to pierce the ma-- :terial while the latter is being pressed down,

A ram is arranged above the anvilto depress the material along the barrel of an eyelet and to. carry an eyelet-setting tool, but the latter is mova-bly related to the ram to be shifted to and from its potential fastener-engaging position.

The eyelet-setting tool and the spindle-locking means are interconnected by a mechanism that puts each out of. operation when the other is brought into operation.

$55 Fig. 15 is a view similar to (01. a e-14y 2 Q'The machine is provided with power-driven 7 means for reciprocating". the ram. Alternate down-strokes ofthe. ranr'may be used todepress the eyelet-receiving material, and the intervening down-strokes may be used to, upset and clench eyelets. Preferably; the locking and-unlocking of the spindle, and the shifting of the eyelet-setting tool to andfrom its potential eyelet-engaging position willbe accomplished automatically by mechanism activated by. an element of the aforesaid power-driven means at acyclic rate one-half that of the ram. Accordingly one complete operating cycle of themachine will inelude two cycles of reciprocation of theram, in

l the first of whioha presser, also carried by the pinwith which the anvil is provided; 7

Fig. 5 is a perspective view, on a. relatively large scale, of a grommet and washer;

V Fig; 6 is a left side elevation of the assemblage included in Fig. 2; v a

Fig. 7 is aiview similar to Fig.6 but showing the eyelet-setting tools in register with the anvil;

I Fig; 81s a vertical section, on a relatively large scale, of a/grommet and-washer assemblage in the final stage of being installed; 1 :;Fig. 9 is a vertical cross-section ofthe-half- 40 speed cam assemblage for shiftingv the toolearrierfsee line IXIX inFig, 10) p Fig; 1.0 is a vertical section in a 'plane'at rightangles to that of Fig. 9 (see line in Figx'Q') Fig. 11 is a vertical sectiomviewed as inoFig. 6,

of the telescopic' connection bywhich .the upper wand lower slides arecoupled; 1.;

' Fig :12 is a right side elevationincluding the ram, a. crank motion for reciprocating/11 and means fordriving thehalf-speed-cam; I

' clutch-assemblage;

Fig.'14.is a vertical section-of the anvi1"as-'. semblage, and a workpiece about to be-impaled.

on -a grommet; and H Fig. l4- but-showing a Fig, 3 is a top planiyiew of the b ed and-anvil Fig. 13 is a front elevation ofza one revolution localize the eyelet barrels of the grommet, and to pierce the eyelet-receiving materialethnough;

which those barrels are to extend.

An upper slide l5, hereinafter termed tool 15 Tf'2 ,ff TmS*g8a2 and camrmember surrounds a concarrier, is likewise movable to thejront and-rear. Its purpose is to carry a work-presser l6 and a group of setting tools afiixedzto agblock iii-.aThe. tool-carrier 15 has dovetail connection with-ta, block [8 which constitutes a part of a'verticallymovable ram J9. The-two slides I3. and [Bare con-negated a verticalj-coupling -pin-=29-which i '(see'Fig, 11) anchored tothe-lower'slide and has -telescopic engagement with tl-ie -upper -slide. f This; in synchronizes andequalizes the-horizon.- tal movementsoftheslidedbutpermits the upper slide-to moveupanddown. i g r 1 The'ram l 9- slides i-nwertical ways in thefira-me l and derives its -reciproeationfrom-a% crank 2 l (Fig. 12 );--to- -which; it is connected -by a link 22 and a'wrist-pin-23i =";I he-er'a-nk- 2-1 -isca-rried bya power-drivenshaftZ d' journaled i-n- -the frame and -provided-- with a {one-revolution clutch hereinafter-described. g A- grommet pi theetype herein "ShOWIXj (Figs. and 8) -'-is; made of -one'- ciljcular piece of ductile sheetime'tal; th centralz-zone-of-which is drawn to provideafharrel'; portion- 2 5; projectingyfrom an annular clamping plate oi' fiange -26 ses-gorv tions or the flange are *d-rawn t provide 'fr'ela- *tivel-y small;eyeletbarreisZ-I and these are symf'rnetrically relatedj-to thebarrel-portion and to 'oneanether; The same patterm is embodied in the arrangement of a larger central h 01e"28 and six'small holes 29 inia-washe1 36 adapted tobe ,assembled with the grommet. The barreljportions-of the-grommet are long enough to -extend through four pliesfot canvas and throughjhe washer and to provide 7 enough ;addi tional; length to be upset andcIenched' ont-the-outer face pf, the I v 50 24: is=-represented inr Figs han-d I3 I It is aelutch washen-as shown izr- FigzS. V

The same pattern-is e bodied; in the arrangementof a central indexing pin "8- L"(Figs,;=3;and 4) v and g six spindles l4 each telescopically on related to the anvill2. Thefpin B I ignorrnal-lyfupheld by -aeonipressien -spr ingj32 --(Fig. 38;) hand, g the spindles by light-springs=-33: 'When-a-'-'gro-m-,

through and above-the barrel fi', and the points of --the spindles M; proj e'ct through and above the smallbarrels iz'l- (Rig- 14) A ;-slpt35-;(Fig.;*4 ;in the pin 3! receive s' 'a retaining pin installedin -the-anvil.- The retaining -.-permits A the in- I dexing pm to be depressed; but arrests its upward movernfent 'whi-l'e the s'pring 32 -is-==nnder -eompression. The lower ends of v thepointed spindles M are all -arranged to-- abut the upper -75 spring 1 I 4 rel 25 and the projecting end of the indexing pin 3i, and with six small holes 31 adapted to receive the eyelet barrels 21 without fouling the pointed spindles l4.

5 The tool block I! is provided with a group of six small setting tools each having an upsetting shoulder 39, and with a large central setting tool 7 hav -inganupsetting shoulder 540.; :These tools are 'arranged to operate simultaneously on the barlQ rels 21 and 25 to clench them as shown in Fig. 8. The motion for shifting the slides is and i5 tojront-rand-rear is derived from the shaft 24 through the medium of an internal spur gear 4! eFigsge andflmmaving an external cam surface 'centric collar 43 keyed to the shaft, and has a ,rtbearingoonzkthe collar. A spur pinion 44, formed on the collar, engages and drives an intermediate -gear45' in mesh with the. internal gear H. The

:3 earn 42 is thus driven at a rate exactly one-half that of the --s'haft;-- The intermediate r. gear 45 V stunts-on afiXed pinfle 46 pressed-tightly into a :br-aoket -having one' -bore engaging the shaft 24 and anothenengaging a fixedspini'lta.

i *The cam -42 engages a roll 49-carried by an -arm3 SB a-Iranged tcbe oscillated about the pin 48= on=-Which the arm has a bearing. v-A tension spring- 51zoonnected: to the-arm-maintains the Hell- 49against-thecam; A link fii connectsthe 35 mounted on a fulcrum- Stud 51 affixed to the :bed (-Figz-(i),

-Thecam 42 (Fig. 9) has a high concentric'seg- =--ment and alowboncentriesegmentsdiametrically opposite.=each other; The initial position of the go cam -is shown in this :view; The 10W; seg-ment places the work-press'er IB- inrregister :with-the anvil andkeeps. it -i-n that position throughoutthe "first down stroke--and a portion of-"the first upstr0keof :each four stroke oycle an'dthe high 45--=segment a places the group ofdsetting tools" 1 in register with -the anvil and keeps it in that position throughout the second down-stroke-nnd-a portion of. the ssecond-up-strokeof the-cycle. anne-revolution clutch :-fo1--:d1-ivin he sh f -of--the-rocker= key: type zand its modexof: operation --is-set forth in United; States Letters Patent No. 7843353, granted March 14; 1905, in the {namegof 0. ass Beyer; The clutch comprises a driven 55 member 6il keyed tothe shaft,-a-drivingmember dldoosely mounted on the shaft,andarocken key havinga shank- B2 andw head- 63; The drivin ---member is*apul1eydingo-1) tobe intated continu- *ouSly:-by -abe1t (not shown) gA- eylindrical portion of the shank 2' ha's a bearingdnthe-driven member but a semicylindrioal-portion thereof is arranged to *be rocked into and ont-of asemicyli'ndrioalrecess man interior avail of the drivin --'member. Ay-springiol-lower;64';=l0cated'in a-bore 5 in'thedriven member}engagesythe-head 63;and normal-1y rocks-the-key to its-driving -position,but avhen the head '-is against-a -sh-oulder of the drive11-membenthe latter js deelutched The ;oneerevol;nt-ion control comprises a;:stop65.

-'-a-' pin; fifi carriedwyfithe latterr 4 QTh stop 36 and the bell cran-k are both mountedron; afixed pivot -st-ud g-{Hl "arid-the former is+normally drawn "into Y the-patlr-of rotationpf-the-head 453 by;a-tension When the head t3-is-carried-against the upper end of the stop by rotation of the driven member, the first effect is to rock the key'to .its declutching positionyand the final efiect is to arrest rotation of the driven member when the shoulder 65 strikes the head. The latch 61 is mounted on a pivot pin 12 afiixed to the stop, and is provided with a shoulder 13 arranged to latch the pin 69. The latch is normally drawn to its latching position by a spring M; A rod 15 connected to the bell-crank may extend to a clutch treadle (no-t shown).-

When the rod 15 is depressed'the bell-crank shifts the pin '69, the latch 61 and the stop 66 t the right, thereby releasing the rocker key. Now, the spring follower 64 will rock the key :to its clutching position when the key recess in the driv ing member permits. When the driven member has rotated about revolution a cam portion'lli thereof rocks the latch 61 about its pivot 12 and thereby trips the latch to release it from the pin 69. Consequently, even though the rod 15 may remain depressed, the spring It will return the stop 66 to the path of the head 63 and thereby arrest the driven member at the conclusion of one revolution. The operator must raise therod 15 or permit a spring to raise it to re-engage the pin 59 and the latch shoulder 13.-

To install grommets and washers'in a workpiece, the operator will first punch one hole in each selected area of the latter, if the holes have not already been provided. The holes should be about the same size as the indexing pin 3'l in the center of the anvil, but no larger. After placing a grommet on the indexing pin and pointed spindles of the anvil (Fig. 14), the operator will place a selected area of a work-piece I00 on the points of the spindles, so that the indexing pin will project through the hole in that area. Now, if the half-speed cam 42 is in its initial position (Fig. 9), the work-presser [-6 will be in register with the anvil, and the pointed spindles will be locked by the slide l3. The'first revolution of the shaft 24, due to tripping the clutch, will rotate crank 2| (Fig. 12) through one revolution and this will depress and raise the ram l9 and, through action of the high spot of cam flfwill rock arm 50 (Fig. 9) and thus will disten'd the spring and shift both slides I3" and I5 to-the rear during the latter stages of the up-stroke of the ram. The work-piece, having been impaled on the barrels of the grommet by the work-presser, is now ready to receive a washer 30, which the the clutch. At this stage the setting tools in the blockv l I will be in register with the anvil, and the pointed spindles M will be unlocked. Consequently, the next down-stroke of the ram will complete the installation of the grommet as represented in Fig. 8 which illustrates the spindles and the indexing pin 3| depressed by the pilots of the setting tools. During the latter stages of the next up-stroke of the ram the cam 42 will permit the spring 5| to contract and thus permit the spring to act to shift the slides I3 and Hi to their forward positions, thereby locking the pointed spindles and returning the work-presser to its path of operation in readiness for the next cycle of operations.

Having described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

l. A fastener-attaching machine comprising a fastener-supporting anvil, a ram movable up and down, a tool-carrier mounted on the ram and shiftable relatively thereto, a work-engaging presser and a fastener-setting tool both carried by said tool-carrier, power-driven means ar ranged to reciprocate theram up and down, and mechanism operable by said power-driven means for causing said presser and said fastener-setting tool to cooperate alternately with the anvil at a cyclic rate one-half that of the ram, said presser being adapted to impale a work-piece on a fastener seated on'the anvil. l 2. A fastener-attaching machine comprising a fixed anvil for supporting a tubular fastener standing on end, a ram movable up and'down, a horizontally movable tool-carrier mounted on the ram, a work-engaging presser and a fastener-set ting tool both carried by said tool-c.arrier,

power-driven means arranged to reciprocate the ram up and down, and mechanism operable by said power-driven means for shifting, said'to'olcarrier to place the presser in cooperative relation to the anvil duringv alternate down-strokes of the ram and to place the, fastener-setting tool in cooperative relation to the anvil duringnthe intervening down-strokes of the ram, the presser beingadapted to impale a work-piece on a fastener onthe anvil. a

'3. A fastener-attaching machine comprisinga fastener-supporting anvil, a ram movableupand down, a tool-carrier mounted onthe ram and shiftable relatively thereto, a work-engaging presser and a fastener-setting tool both carried by said tool-carrier, a power-driven shaft, a cam loosely mounted thereon, gearing driven by the shaft for rotating the cam at one-half, thecyclic rate of the shaft, means carried .by the. shaft for reciprocating said ram, and, mechanism operable by said cam for shifting said tool-carrier in one direction in, alternate cycles of theram andin the opposite direction in the intervening cycles of the ram and thereby to cause the presser 40 and-the fastener setting tool to cooperate alternately with said anvil. c

4. A fastener-attaching machine comprising an anvil, a pointed spindle telescopically related thereto, a spring by which the spindle is normally upheld, a ram arranged to travel up and down, power-operated means by which the ram is actuated, mechanism actuated by an elementof said power-operated means for locking said spindle during the alternate cycles of the 'ram and unlocking the spindle during the intervening cycles thereof, and a presser carried up and down by the ram and adapted to depress a work-piece along the spindle when the spindle is locked.

5. A fastener-attaching machine comprising an anvil, a pointed spindle telescopically related thereto, a spring by which the spindle is normally upheld, a ram arranged to travel up and down, power-operated means by which the ram is actuated, a tool-carrier supported by said ram but shiftable relatively thereto, a work-engaging presser and a fastener-setting tool both carried by said tool-carrier, mechanism actuated by an element of said means for shifting said toolcarrier to place the presser in register with the anvil in alternate cycles of the ram and to place the fastener-setting tool in register with the anvil in the intervening cycles of the ram, and means also operable by an element of said powerdriven means for locking and unlocking the spindle according to the aforesaid placing of the presser and the fastener-setting tool.

6. A fastener-attaching machine comprising an anvil, a pointed spindle telescopically related thereto, a spring by which the spindle is normally upheld. a ram arranged to travel up and dew-n,

hatefeyeles of therein and unlocking the spindle the intervening cyeles thereof, a presser and down by the ramand adapted to depress a work-piece along the spindle when the spindle is locked, and 2a .fastener-settingteol also named up and down by thelram and adapted to-upse't affasten'er on the anvil when the spindle is unlocked, the presser and the fastener-setting tool being ."shiftabl'e laterally to and from an operating path in register-with the anvil.

ni-fastener-attaohing machine comprising an anvil, a pointed spindle telescopically related thereto, a spring hy which the spindle is normally upheld, a power-operated ram arranged to travel up down, means adapted to lock and unlock the spindle, a pr'esser carried up and down' by the and adapted to depress a work-piece along the spind'ie when the spindle is locked, a fastener-setting tool also carried up and down by the ram and adapted to upset a ifas'ten'er ml the anvil when the spindle is unlocked, the :presser and the fa'sten'er-settin'g tool being :sliiftable ands group :of iastenerase'tting tools carried by the tool-carrier, and connections actuated by an element of :said-power-driven means for operatinglsaid loekingmember to lock and unlock-the spindles and for :shi-ftirrgjsaid work-Presser and saidugroup "of tools alternately to, and from-ran 7 operating :pat-h in register with the 9-. A fastener-attaching machine -cemprisin a fixed bed, a fastenersehpert-ing; anvil thereon, the-anvil having a groupef pointed spindles telescopically related thereto, the spindles being normally upheld by springs, a ram located above said bed andmovable toward and tromthe latter, power-dniven means :by-whioh the ram is moved, a tool-slide *carried by the ram, a locking Eslide movably arranged on the bed, coupling means connecting said slides to maintain them in coordinated relation-the locking sli'de being arranged to look and unlock the spindles, a work presser carried by the tool-slide and arranged to cooperate with the anvil when the spindles are locked, a group of fastener-setting tools also 'carried by the tool-slide and arranged to cooperate with the anvil when the spindles are unlocked, and mechanism actuated by an element of said powerw-driven means for shifting said slides to and -:fro in timed relation to the strokes of said ram. V

10. A .iastener attaching machine comprisin an anvil, apointed spindle telescopically related thereto, a spring by which the spindle is normally upheld, a ram movable up and down above the anvil, -a tool-carrier carried by the ram but movable relatively thereto, a werk-presser and a fastener-setting tool both carried by said tooloarrier,eons-revolution clutch, .a shaft driven thereby, means connecting said shaft and the ramfor imparting one cycle of reciprocation to the ram for each revolutionof the shaft, means operable by said shaft for shifting said toolcarrierin one direction during alternate revolutions. of the shaft, means for shifting said tool carrier in the opposite direction during the intervening revolutions thereof, and means operable bysaid shaft for looking and unloeking said spindle in timed relation to the shifting of said tool-carrier. SYLVE'STER L. GQOKIN.

REFERENCES CITED The following references are of record in the file- 0f this "patent:

UNITED STATES PATENTS Number Name Date 585,835 Steen July 6, 1897 781,750 Stewart n, Feb. '1, 1905 Gook-in l h- Oct. 17, 1944

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