US1045784A

US1045784A - Machine for inserting fastenings.

Info

Publication number: US1045784A
Application number: US703885A
Authority: US
Inventors: George Goddu
Original assignee: United Shoe Machinery Co AB
Current assignee: USM Ltd; United Shoe Machinery Co AB
Priority date: 1909-02-08
Filing date: 1912-06-15
Publication date: 1912-11-26
Anticipated expiration: 1929-11-26

Description

G. GUDDU. MAGHNE EUR XNSBRTlNG PASTBNINGS.

APPLIGATION FILED JUNE15,1912.

4 SHEETS-SHBBT 2.

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[Nl/ENTOR WHA/55555 G. GODDU.' MAGHINE PSR lNSBRTlNG FAsTBNmGs APPLICATION .FILED JUNE 16. 1912.

INVENIOR l SHEETS-SHBET Patented Nov. 26, 1912.

WIM/55555:

. 6M @7M/M G. GODDU. MACHINE FOR INSBRTING FASTENINGS.

APPLICATION FILED JUNE 15,1912.

` Patented Nov"l 26, 1912.

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35 y speed capacity ofthe machine in which it is 'MACHINERY CGMPANL', 0F PATERSON. NEEV JERSEY, A. CGW@ JERSEY.

e TION @E 'il/TEW MACHINE FR NSEETNG FSEME.

inenten.

Patent item2@ ili.

. 'Gontimiationpf application Serial No. Maen, lsled 1 "c`or iiar5fy e, wett@ 'mais application flied Jane i5; mijn.

Serial No To all whom 'it may concern:

Berit known that L GEORGE Gonno, a

"citizen-ofthe United States,V residing at Winchester, in the county ot Middlesex and tening inserting machines of lthe type in which means is provided for forming a tas.-

tening receiving opening in thework, a preferred Lt'orin'of the invention being shown as embodied in the machine for inserting previously formed fastenings which is illustrated and-described in detail in United States Letters-Patent to George Goddu, No.l

1,030,775e Granted June 25,1912, for iin-- proveniente in machines for inserting .tas-

' tenings. The present application is a con tinu'ation of .the co-pending application.

which matured into lsaid Letters Patent in so feras the two applications disclose coinmon subject-matter.

A general object of the invention is to provide in a fastening inserting machine improved means for forming the fastening receiving openings in the work which will be especially useful in a fastening inserting machine that is to be runat l high speed and which will itself contribute to an increased embodied. ln the illustrated machine the means for forming the fastening `receiving openings in the work comprises an awl, and

-an important object of the invention is to provide improved mechanism for controlling automatically the'depth to which the l ointfof the awl is forced int-o the work in its work penetratimg` movement.

ltis important in a machine which is to, 4be operated at high speed that the movements oi the awlor other means for torm- 'ing af fastening receiving opening in the work be substantially positively controlled., especially` those movements which are intended to bring the awl into denite .coperative relation to other parts of theniachine at deinite times. lt is iniportant,lthere`fore, that mechanism tor controlling thedepth of to machines for inpenetration 4oifj the avvl into theaiworlt be so constructed andarranged that it Will'not interfere with the substantially pitive con- '.trol of the awl by'its operatinginecha- A particular object of the invention;therefore, is to provide', in combination with awl' actuating mechanism arranged to. actuate the mechanism and yet lwhich Will have nodirect eect upon the 'awl itself, nor'any eect upon t-he awl through its actuating mechanism `except at the desired times.

ln its illustrated preferred' embodiment the awl depth 'controlling mechanism is as sociated with the mechanism Which-controls the release of the work supportor the worlr feeding operation, and an important feature of the invention is the connection ofthe awl of the work support controlling .mechanism which .is held against movement during the work releasing opeiat1on, Wlierebyfsaid re- 0 475l depth controlling mechanism with a member lease, `itollowing as it doesv the worlrpene e@ elect upon the position of the awl.

ln'the accompanying drawings,l*`igure l isa side elevation cfa machine'embodjving vferred form of the mechanism for controlling the depth of penetration ofthe awl into the work; Figo shows afmodiiication ol the aivl depth controlling mechanism;A Fig. 6 is a perspective detail ot the locking mechatrating movement of the aWl,`Will have .no

nism, constituting a part oit the lhorn oper- Y ating mechanism; andv 7' is a detail sectionthrough the yielding connection loe- 'tween the awl depth controlling mer-,lianisirn and the horn release mechanism.

The illustrated machine vhas a. supporting frame comprising a base 2, a standard or column 4l and a head 6.' the base are mounted a coi/inter shatt'to which is attached a pulley 10 connected to any suitable source of power', and .tlie horn depressing and clutch operating treadles l2 and lll respectively. The counter shaft 8 also carries a second pulley rigidly attached to it and connected by a belt 16 to a loose pulley 18 upon the main driving shaft 20 inthe head of the machine as awhole.

.6. In the upright portion of the frame or.

standard 4 are'mounted the work support or horn 22 and the horn release controlling vmechanism. 1n the head 6 are mounted the various parts of the fastening inserting mechanism and the cams which control the timing of the operations of the various parts The tastening insertingor nail driving mechanismv comprisesa driver bar 24 mounted to reciprocate vertically in a 4guideway 'in an upright part 26 of the machine-head .l and having clamped lto its lower end a mounted upon the'driving shaft 20.

The nails to'be driven are contained in a hopper 56 from which they are conducted by'a raceWay 58 to a point adjacent to the driver passage in the'driver guide 60, said guide being broken away at the side adjacent to. the vracevvay whereby the nails may be introduced one at a time from said raceway into said driver passage. Below the driver guide 60 is a nail receiving throat 62 mounted upon a slide 64 and'inovable y with said slide transversely to the path of feed of the Work `and' transversely to the raceway 58.

Transverse movement of the throat 62 and slide 64 is provided to Withdraw the throatfrom the pathv of feed movement of the aWl 66, hereinafter to be described, in

order-to permit the'avvlA to bring the nailv receiving opening which it has formed in the Work beneath the driver passage. The slide 64 is guided in an opening in the machine frame. and is provided at fits rear end with rack teeth 68 with which engage the teeth upon a segment rack 70 upon the lower end of a slide actuating lever 72 pivoted at 74 on the machine head and carrying at its upper end a cam roll which enters a cam groove 78 in the cam Wheel 48, said cam groeve 78 being so shaped as to etlect -the movement of the throat 62 into operative' vposition and to Withdraw it out of the path of ,the aWl at the proper times in the cycle of operations of the machine. The nail separator 80 is also mounted upon the slide 64'to move therewith and is yieldingly connected with said slide so that onthe return movement of the slide 64 the separator may more relatively tosaid slide in the event that it an ohsn'netion in the raeetray.; The

Loeagee awl 66 is clamped in anv aWl bar 96 which has a straight vertical portion mounted to slide in a vertical guideway in an awl carrying trameS, said frame .98 being provided u'ith a horizontal dove-tailed portion 100 arranged to slide in a similarly shaped slideway .formed in 'a' bracket 102 bolted to the machine head. Theawl bar96 is arranged to reciprocate vertically-in its carrying iframe 98 and to be moved horizontally with said frame.

The mechanism for effecting the horizontal movement of the frame 98 comprises a floating lever 104 pro-vided With'a guide- Way 106 in which is slidably mounted a fulcrum block 108 pivoted upon a stationary tulcrum pi-n 110 carried by a block 111 ad justably mounted in an upstanding portion 112 of the machine head. Vertical adjust- -v -ment of the fulcrum pin 110 varies the relative length of the two arms of the floating lever 104 and therefore varies the amount of horizontal movement of the frame 98 and the amount of'feed movement of the aWl. For convenience in adju-sting the fulcrum pin 110, the upstanding portion of the frame 112 is provided with a nail -spacing scale 114 With which coperatesan indica- -tor on the fulcrum pin carrying block 111.

At its upper end the floating lever 104 is pro-vided with a cam roll 116 Which travels in a cam groove 118 formed in the rear face of the cam disk 120 mounted upon the forward end of the main driving shaft 20.

Upon the rear face of its vertical portion the awl bar 96 is provided'with rack teeth with which engage the teeth upon a segment 4rack carried upon one arm 122 of an awl operating lever. The awl operating lever is fulcnnmed upon arock-sha-'t 124, being provided ujith a Ysleeve 125 which surrounds said rock-shaft. The arm 122 of thea-Wloperatingv lever is attached tothe inner en d of the sleeve 125 andthe otherarm 126 is attached to the other end of said sleeve.

The arm 126 of the awl operating lever comprises a .casing in vWhich is mounted a slide bar 128 broken at 130 into two separaL ble sections.' the lower section 1280 being provided with rack teeth which mesh. with the teeth of a pinion 132 carried at the outer end of the rock-shaft 124 and the upper section 1281vreceiving through an opening in the back of the casing whichy ormsthearm 126 a pivot pin 134 upon a block 136. arranged to be moved 'vertically in a lever l138 pivoted at one end zit-140 to the machine head and atits other end carrying a cam roll 142 which enters a cam groove 144 in a cam Wheel 146 on the main shaft 20.

Thelever 138 is provided `with a spring socket 148 in which is contained a spring 150 which holds the block '136 yieldinglynm its lowermost position. The power which operates the te cause it to penetrate the 31? work being transmitted to the arm 126 of the awl operating lever through the lever 188, the` eliective length ot' the arm 126 is therefore varied b v varying the vertical position of the tulcrmn pin 134.

In order that the Work penet-rating movement of the awl may be proportioned to the thickness of the Work, mechanism is provided for automatically varying the vertical position of the tulcrum pin 134 in accordance Wit-h the thickness of the work. This mechanism comprises a lever 152 attachedto a rockshaft 154 having bearings in the machine head, said lever carrying at its tor- Ward end a segment rack 156 which engages a pinion 158, see Fig. 3, upon the inner end of the rock-shaft 124. The rear 'end of the lever 152 is connected by a rod 160 to a sclide 162 constit-uting a part of the Work thickness compensa-ting mechanism through which the releasing movement of the horn is controlled for the Work feeding operation. Since the position of the slide 162 is determined by the thickness of the Work in a manner hereinafter to be described, the vertical posit-ion of the fulcrum pin 134 will be controlledl through4 the rod 160, lever 152, segment 156, pinion 158, rock-shaft 124,

pinion 132 and slide 128.

The horn release mechanism herein shown is `substantially t-he'same in its construction and principle ot operation as that shown in my lcopending application, Serial No. 409,352. iiled Jan. 4, 1908, except that the mechanism herein shown 'is mounted in` thecolumn 4 to operate in the reverse direction from that in which the mechanism in the co-pending application operates. In the illustrated construction the slide 162 is nor`- mally depressed into its lowermost posit-ion by a horn raising and Work clamping spring 16.4 hearing at its upper end against a crosspiece in the column 4 and at its lower end at its forward end connected by a block and5 ,ot still vgreater thickness. This yielding :connection `comprises a socket 198 located the horn supporting rod 174 is thread The lever 172v is forked at its forward ndr. The straightening ot' the tcggle is effected. through a link 176 connected at one end to being received in an annular socket 166 surrounding and clamped upon a threaded rod 10T connected to the -slide 162.

The pressure of the spring 164 initted to the horn 22 through connections comprising toggle links 168. 170 and a lever 172 fulcru'med in the column 4 and connect.-V ed at its rear end to the toggle link 170 and slot. connection to a member 17 5 into which the knee joint of the toggle and at its other end to one arm of a bell-c ank lever 178` the other arm oi which is connected by a rod 180 to an arm -ot' a second hell-crank lever. t82. The other arm oi" the lever 182 carries a canti-ell entering a cam slot '184 in the cam ivhcei 48. ll'hen' the toggle is broken` the spring 164 is preferably locked against is transspringl ratchet when t-he toggle is broken, said pa'vvls being held out'ot' engagement with said ratchet when the toggle is straightened the pressure of a nger 199, attached to the toggle link 168.v upon the tails 194 o said pawls.

The horn may be depressed. when the machine is at rest in order to place Work upon it orlremove kWork from it by suitable conv nections with\the hoi'n depressing treadle 12, said connections comprising, in the illustrated construction, a rod 196 threaded at its upper end into a piece 197 having a pin and slot connection 'with a forked extension ci the member 175, said rod being pivotally connected at its lower end to the treadle 12.

rl`he mechanism for automatically controlling the depth ot penetration of the awl into the Work has preferably only a limited range of movement, since when operating upon'vvork which is very thick it is unnecessary tov vary the depth of penetration ot' the aivl and therefore when the thickness ot the work exceeds a predetermined amount the awl depth controlling mechanism ceases to cause variations in the movement of the a\vl corresponding to 'ariations in the thickness of the work. A stop 1.99 constituted b v a part of the, machine head located in the path of tlie'segment carrying end of the lever152 limits the movement ot the awl depth cont/rolling mechanism. Inorderthat the tree movement ofthe horn may notbe interfered with when the` thickness ot' the Work exceeds that for which automatic variation ot the awl movements is pro-vided, a yielding connection is provided between the rod 160 and the slide 162 upperlimit of its movement. that is, when ithas set the awl operating'mechanism to 'give the greatest amount. ot penetrative movement. to the aufl. the slide 162 may be moved lrelativelyto the rod 160 to permitthe horn' 22 to accon'unodate itself to ive-rk vWithin the spring .164 and connected to the "i'odlltO aud-having conined u'itliin it andl n'ithiii said socket is provided uitlrapiston 202 bearing upon theA loiver end" of the 200. The spring 200 is strong so that `the thickness ot the work enough accurately gaged bv the automatic lwill 4rbe cont-rolling mechanism up to the maximum for which this l'nechanism is effective, and that beyond the said maximum the spring will be compressed to permit the relative movement of the slide 162 and the rod 160.

The downward movement of the slidev .162 causes a positive downward movement of the` rod 160 after the spring -200 has expanded sufficiently t'o bring the piston 202 into cont-act' with the, bottom of the socket 198 in the event that said spring has been compressed;

v During the horn release operation of the horn controlling mechanism there will be no movement of the awl through the awl depth controlling mechanism since 'at this time the slide 162 will be locked against movement and therefore the rod 160 will be held stationary. It will be noted that when the awl operatinglever .is turned about the yrock-shaft 12-1 by the action ofthe lever 138 upon it` the part 1280 of the slide bar 128, as it rolls about the pinion 132,` will tend to move away slightly from the part 1281 and for this reason the lslide bar 128 has beenv made in two separable sections in order that thisv slight downward pull may not affect the vertical position of the fulcrum pin 134. 'henthe slideway for the block 136 in the lever 138 and the slidevvay for the slide bar 128 are substantially parallel, any movement of the bar 128 caused by variations in the l thickness of the work will have no effect upon the awl 'since the parts Vare in what may be called neutral position, and no tendency to turn is impartedl to the arm 126 of the awl operating lever by the movement of the slide 128 when the parts are in this neutral position, or in other words,iwhen the angle vbetween the slideway for the block 136 and the slideway for the slide bar 128 is zero.A

Since the position of the awl will not be affected by any adjustment of the awl depth controlling mechanism when the two slideways vare in the position just described. the parts are preferably so timed that the movemen't of the hornback into work gaging po` sition will take place with the slideways in this position and that the machine will stop with the slideways in this position. It will therefore be seen that the horn may be depressed by the treadle 12 to permit work to be placed upon it or removed from it. without any effect upon the awl. Moreover it. will be noted that the afwl has a fixed starting position by reason of the positive con neet-ion between the arm 126 and the awl bar 96 and that the range of movement of the awl from this starting position is varied by the means hereinabove described.

The construction ofthe awl depth controlling. mechanism just described is the best,l form now known to m'efin which this feature of my inventioni-.rnay'be embodied, but.

it should lbe understood that While I am the inventor of the broad features of invention embodied in this construction, the specitic mechanism is the invention of Fred L. MacKenzie and is described. and claimed in an application filed by said MacKenzie, Se-

rial No. 476,718, February 8, 1909.

I will now describe the modification of this mechanism shown in Fig. 5, which is the form in which I first embodied this feature of my invention and upon which the invention of said MacKenzie is an improvement. my invention shown in Fig. 5, the awl 600 is clamped in a slide 602 arranged for .vertical movement in a horizontal slide 610 which moves in a guideway `604 in the forward end of a third slide 606. The slide 606 was provided in the mach-ine in which this form of myv invention was embodied to permit' certain movements ofother parts, not herein shown and constituting no part of the present invention. horizontal sliding movement in the guideway 604 to permitthe awl to feed the work. The horizontal movement of the awl is positively `controlled through connections with a Cannnot herein shown, these connections comprising' a rack bar 611 having a pin and slot connection Withthe awl slide 602 whereby horizontal movement of the slide 606v 612 in a cam wheel 614C on the driving shaft. A

These connections comprise abell crank 616 fulcrumed at 618 upon the machine frame and having a forked arm'619 which receives between its fork members a third class lever 620 fulcrumed at. 608 in the slide 606, the lever 620 being provided with a slot 622 which receives a pin 624: connecting the .fo-rk members of the bell crank armu' At its forward end the lever 620 is'provided with upper and lower

slide engaging members

623 and 625, respectively, through which the vertical movements of said lever are transmitted to the slide 602. T he other arm 626 of the bell crank 616 is provided with a pin or stud 62S which enters a slot 630 in one arm of a second bell'crank 632 having an adjustable fulcrum 634 received in a slot 636 `in said bell crank. The fulcrum 634 is carried by a slide 6238 guided in vertical ways in the machine frame, whereby-the fulln the embodiment of this feature of The slide 610 has Crum 655-1 may be moved up and ldio-wn in the noten se roll 64:4 carried by said slide and entering said cam groove..

To vary automatically the vamount of movement imparted to the lever 626, and thereby to the awl slide 602, through the connections justdescribed, as the Work varies in thickness, theY slide 638 is connected to the horn o r other work support so that as the horn moves vertically into clamping relation tothe different Work thicknesses vert-ical movement Will be imparted to the slide 638,' thereby varying the relative eect-ive -lengths of the connected lever arms through "which movement is transmitted from the a cam groove 612 to the lever 620. The connections to the horn comprise a rod 646 pivotally connected at 64:8 to an arm 650 of a rocker frame 652, fulcrumed upon the-machineframe. Another arm 654 upon said rocker frame is slotted to receive a pin 656 npon the slide 636. At its other end the rod 'may be connected to'the slide 162 or any other suitable part Which receives motion from the horn.

The parts are shownin F ig. 5 in their positions of rest, at which time the slot 636 is parallel to the path of travel ofl the slide 638 andtherefore as the horn-is adjusted in lacing the Work in position to be oper'ated uldnttlne iiulcru'm 63tivill be carried up and down in the slot 636 Without having any eiiect upon the position of ythe bell 'crank 682.

It Will be noted that all of the pivotal connections are such that the movements are 'positive in both directions and that a construction is -provided in which the aivl is positively controlled throughout its reciprocating movement, in which the amount of reciprocating movement is varied from a fixed starting,poi'iit as the Work varies in thickness, and in which the adjustment in the operating connections is effected at ysuch time thatk such adjustment has no direct effect upon the position of the avvl.

AHaving described my invention, ivhat l claim as new and desire to secure by Letters Patent of the United States is l. ln a machine of the class describechan avvl, means for reciprocating said awl to :form an awl hole in the Work constructed -to control the avvl positively and continuons-ly throughout its reciprocating movement, and'ineans governed by variations in the thickness of the Work for varying the extent of such positive reciprocating movement.

2. In a machine of the class described, an

continuously throughout its reciprocatingv movement, and means governed by variations in the thickness of the Work for varying the range of the positive reciprocating movement of said avvl with respect to said. starting point.

3. 'A machine of the class described hav- .trol the avvl positively andV continuously throughout its reciprocating movement, and

.means for automatically adjusting said' aforementioned means to vary its effective throw in accordance With variations in the thickness of the Work constructed and arranged to `operate Without changing the povsitionot the awl during the adjusting operation.

5; In a machine of. the class described, an aWl arranged to reciprocate vertically to form an aivl hole and torcciprocate laterally to iced the Work, means for controllin g positively both the vertical and the lateral rcciprocations oft said awl, and means governed by variations in the thickness of the Work for varying the amount of the positive vertical reciprocation of said awl.

'6. Avmachine of the class described having, in combination, ieeechanism for inserting tasteniiigs, an au'l for forming fastening 'receiving openings in the work, and a work support controlling mechanism connected to said Work support and comprising a member locked during the Work releasing operation always at the same distance, measured lthrough said connections, from 'the under side ofthe Work, means for operating the aufl, and means connected to said member or' the Worksupport controlling mechanism for lvarying the amount of operative movement ot the awl in accordance with the thickness of the Work.

7. A machine of the class describedliaving, in combination, mechanism for inserting fastenings, an awl for forming fastening-receiving openings in the Work and a Work support, means for operating the avfl, and meansiior'varying the amount of opertive movement of the aivl in accordance with the thickness of the Work comprising two levers' pivotally connected lwith each other and means connected with the work support for varying the relative effective lengt-hs of the .connected lever arms.

8. A machine of the class described having,in combination, mechanism for inserting fastenings, an aWl, means for positively Operating said a-Wl, a Work support and means for effecting a work releasing movement of said work support of uniform amount for successive .operations comprising a slide arranged to be locked in stationary position during said W'ork releasing opera- .t-ion, and means for automatically varying 'they eective throw of said aWl operatin means connected to said slide.

9.y A machine of the class described having, in combination, mechanism for inserting fastenngs, an aWl for forming fastening-receiving openings in ythe Work and a vertically movable -Work support, means for raising. and lowering the Work support to clamp and release the' -Work for successivel `operating the awl and meansfor varying v 4th'eoperative movement of said avvl operating mechanism connectedv to said slide. i

In testimony whereof I have signed my name to this specification 'in the presence of two subscribing Witnesses.

' GEoRGE connu' lllftnesses:

H. DoRsEY SPENCER, HARLOW M. DAVIS.