US2774424A - Corrugated carton handle forming machine - Google Patents

Description

Dec. 18, 1956 J. E. MCNAMARA CORRUGATED CARTON HANDLE FORMING MACHINE 2 Sheets-Sheet. l

Filed April 18, 1955 INVENTOR.

Jas-PH f. MC/VHMHRH Y m MAI-' /c Dec. 18, 1956 J. E. MCNAMARA CORRUGATED CARTON HANDLE FORMING MACHINE Filed April 18, 195s 2 Sheets-Sheet 2 wm, Vv.

1N V EN TOR.

Jos-PH i M AMA/PA BY CORRUGATED CARTON HANDLE FORMING MACmIE Joseph E. McNamara, Detroit, Mieli. Application April 18, 1955, Serial No. 501,921

4 Claims. (Cl. 164-43) This invention relates to `a machine .for lancing` or forming handle portions in corrugated cartons.

Handle forming machines and devices have been employed heretofore to facilitate forming handle portions in corrugated cartons to provide the'user a convenient hand-hold relative thereto, however, the several devices and machines of the prior art have not proven entirely satisfactory inasmuch as they are complicated in design and construction, expensive to manufacture, ditiicult to use, and are usually integrated in the machinewhich originally forms the corrugated carton or boxthereby precluding their subsequent use on cartons already made. With the foregoing in view, the primary' object of' the invention is to provide a handle cutting or forming machine or device which is simple in design andconstuction, inexpensive to manufacture, e'asyto use, safe `to use, easy to store and transport, and which is 'available for making handles on already fabricated cartons. v Y An object of the invention is to provide Va corrugated Vcarton handle forming machine which can be manufactured inexpensively as the component parts are easily made and the assembly of parts readily accomplished.

An object ofthe invention is to provide a handle forining device which can be operated with ease and safety by an unskilled or an inexperienced person.

An object of the invention is to provideV a corrugated carton handle forming device which can form singlefhandles or a plurality of handles and in any and` allsizes of corrugated cartons without changes in its assembly Aor Varrangement of parts.

AnA object of the invention is to provide a corrugated carton forming machine which quickly forms the dle portion in the carton and frees the carton from the device so that the carton can readily be `removed object of the invention is to supply a corrugated carton handle forming machine so that the cartons and boxes at` the superY market. or neighborhood-,store canbe utilized for carrying out the groceries and/or other Yprovisions yinstead of necessitating Vthat' these cartonsxbedismantled and shippedout at the storey thereby not only saving the cost of dismantling and shipping out, `but also the cost ofthe heavy kraft paper bags of the extremely large size now presently being used.

An object of the invention is to provide a corrugated handle forming ,machine which quickly and easily forms handle portions in the corrugated carton thereby converting the otherwise objectionable corrugated Ycartonwinto a desirab1e,. easily handled container forthel customer to transport his groceries or other provisions .to Vhis vehicle.

These and other objects of the invention will become apparent by reference to the followingV description of' a corrugated .carton-handle forming machine'or device enibodying the invention taken in connection withthe a'ccompanying drawings in which:

Fig. 1 is a longitudinal vertical cross-sectional'vie'w of -theinventiveV device inthe openposition showing a corrugated .carton portiondisposed therein.

arent l 2,774,424 R'atented Dec. 18, 1956 'ice Fig. 2 is a View similar to Fig. 1 showing the inventive device in the closed position with .the handle portion lancedf out and crimped for folding back in the corrugated carton portion. Fig.l 3v is a longitudinal horizontal cross-sectional view ofthe device taken n the'line 3 3 of Fig. 2.

' Fig. is `a cross sectionalview of the device taken on the line 4 4 of Fig.v 2. d i

Fig. 5 is a cross-sectional view of the' device taken on the line 5-5 of Fig. 2.

` vFig'. 6 is a perspective view of a corrugated carton portion with'v the handle formed therein.-

7 is' a cross-sectional view' o'f'Fig'. 6 taken on the line 7-K-7' thereof; and

Fig. 8 is a view Vsimilar to Fig. 7 with the lap portion of the landlefolded back in the use posit'iQn. i Y

Referring howto the drawingswherein ylike numerals refer to like and corresponding parts throughout the' se'veral'vie Ais", the' corrugated carton handle' forming machine or'device disclosed therein' to illustrate the invention comprises a frame assembly 1 0 adapted to rest Von ai'oor orv other support, a head assembly 11 mounted n'ntne frame' 10 adapted to'support the upperkshearin'g and;v crimping portions of the device inV spaced felatidnship tothej'frame 10, Yand a lower jaw linkage assembly f2pivo't`a11ymounted nthe franie' 10 adapted 'reistipport the lower shearingv and crimping portions so as to 'cooperate' with the head assembly '.11r d More particularly, the frri'l'e" assembly comprises spaced parallelyvertical `side plates Y15 ,adapted to rest onth'eir lower edges 17a'1id 16 which' are interconnected at their front ends 18 and'19 by a V cross meniber r20 and vat their rear ends- 22 and' 23 by a crossniember 21 adjacent so that the platesi14 and 15 are maintained in. rigid relationship to one another.-

, The plates 14`and 15 are equipped with pairedneck p'or'tonsf24 and 25 risingfabove thebgeneral area ofthe plates intermediate the ends thereof and the'head' por- "tionplate 26 sr'nounted on the neck por-, tions 24 and and 29 so as vto form a carton portion receivin'gfmoth therebetween and it `is to be' noted that theV forwardly `c aritilev ered portion of the head plate 26 is Vequipped with an opening-defined by a front sh'ear-ingedgeihside shearing edgesv ,31Y and 3,2, anda rear crimping` edge' 33 and theta resilient member` 34 is disposed intheopening'Y area as ydefined by the edges so'as`to'be capableo'f urging the-corrugated carton cut-out portion downwardly ,outwardly 0f the opening. The cover- -plate 90' is' disposed inv spaced: relationship to the headZ-a'nd foi-'nis a receiving chamber therebetween for receivingv the `cut tingpedges of the lower jaw'teeth.

The lower jaw assembly 12'compr-ises-pai'red lower jaw arms35 and 36 pivotallymounted as at 3T and 38 on the side kplates 14 and"1=5 andthese jawarms extend forwardly into the ,area of the opening in the headplate 1,6. The-jaw .plate 39 interconnectsfthe jaw arms 35 and 36 at-.fhe forward end while' the from shearing toojrh '40', theV side shearing teeth 41` and! 42, and the rear crimp- -ingmmh 4s, are mounted on the-plate 39 lancl`n1e` 'w plate'and'the teethl 40-43 are indexediand adaptedto co-operate with 4the shearing edges 30, 31 and`32', tog'ether Withlthe crimping edge 33f`de'ning the opening in the' head' plate 26 upon the upwardl movement -of the connected' vas at'4 46and 47 tothe pairedleverarnisS .the'imperforate `carton portion A6(l,..as seen in Fig; 1, isV

converted to a perforate portion as-'seen in Figs 2 and 6 8 whereby thef handle p'ortionis formed in'the Carton wall. .Y f YItis tobe noted that when the'jaw plate 39 andteeth mounted thereon movegfromlthecanted position seen in Fig. 1 that tooth members'4ll-43 move arcuately relative to the pivot points 37 and 38 past theshearingedges 30- 32 rso as! to shear and bite througljttheL carton in a shearing action in thatthe teeth move fromjthe inclined Yor canted .position o fFig.-1 arcuatelyrtoV the straight line upright positionas seen in Figi 2 with theY` resilient lmember 34 depressing the lanced out portion I61 of the handle Yformed portionof V.the carton area 60; sothat the crimping tooth 43 abuts thebottorn of theV plate 26` at the edge ,33 in non-shearing. relationship Vso that the-tooth 43 is capable of scoring the carton portion at 62, Fig. 7, so that the partially or three sided lanced-out portion 63 can be'folded backY by the user Vfrom the VV'position seen in`Fig. 7 to that of Fig.'V 8 whereby the crimped Aportion62 acts as a pivot 'or'hing'e area for Vthe lanced-out portion 63.V A wide Varcuate smooth area. 64 via the fold back' of the lancedout portion 63 is formed whereby the user can grip the cartonV at amsmooth large area thereby eliminating sharp Vuttingredges on the 'carton relative to the holders hands the contact between the crimping tooth 43 and the bottom ofthe plate 26 also acts as a'stop 'preventing further travel pf the shearing edges and further travel of the actuating 'eversf Y Due to the`fact that the paired varms 44 andr45 form thehack of the mouth area, lit isfto be noted that the carton portion 60 cannot be inserted therebeyond so that the. lanced-'out handle portionY is always regularly spaced Vrelative'to the top of the carton forY easilyhandling and proper balance. Two springs yareV shown infthe'drawings, namely spring V65 and springY 66, which areconnected to the jaw Across plate 67. and to the jaw plate 39 and these'two springs are provided to provide anY initial downward urgersuch' as by the rspring .65 from the positionY seen in Fig. 42 to that of Fig. ll and the spring 66'is provided'for theflater movement after the initial urging by the spring 65.

.Obviously'other spring means -such' asa leaf spring 50 and 51- are disposed be.

. free for removal.

The user then turns the carton `completely over and lances another handle aperture on the urging Vthe .jaw linkage assembly' to the inactive position c an be employed or a weight can'be used to urge the jaw linkage assembly. to the open position, however, it has been found-that theV instant spring assembly,4 as shown,

Yis adequate to draw'the teeth out ofthe cartonV and leave the carton free for removal from the device after the handlehas Ybeen formed in the carton.

In use, the userY takes the edge of a carton and inserts it into the device, Fig. l, untilthe topV thereof rabuts the arms 44 land 45 or another stop, the .operator then places his Yfoot on Vthe'pardr54 depressing same so as to cause thefront ends 50 and '51 Vof the lever arms to move upwardly under the jaw plate 39 as to urge the teeth 40443 upwardly so as to Vcarry the carton ,portions .against the head plategr26 whereby'theY teethpshear Vagainst .the

other side and the carton is then ready for use as a container with easily used handle portions.

The inventive handle forming device or machine pai'-V ticularly suitable forcorrugated'cartons and boxes with the features described constitutes a compact, durable, neat appearing mechanism, easily and quickly operated to form handle apertures in corrugated boxes and cartons so that not only are useful handles formed but handles are formed with a professional or manufactured appearance as attractive as though much laborious time has been consumed in forming the handles. Y

It Vis to be particularly noted that the tooth 40 is equipped with leading edges 81 and 82, and a lower center i. portion 83 which follows the initial puncture elfected by the leading edges 81 and 82 and that these leading edges lead the .side'cuttingteeth 31 and.32 so that theside. cutting teeth take overthe shearing ofthe cartonV after the leading edges have made the initial puncture. The scoring Vor crimping edge acts as a stop Vafter thejshearinghas been accomplished.

Although but a single embodimentof the invention has been shown and described in detail, it is iobvious that many changes may be made in the sizeshape, detail, and arrangements of the various elements ofthe invention within the scope `of the appended claims. For example, one lever arm and/or one jaw arm could be used,

I claim:

1. A corrugated cartonvharndle forming machine coni- `Y prising spaced parallel vertical side plates having lower edges formingvassupporting base, a front end, a rear end, Y

upperedges on said plates, means interconnecting said plates adjacent their lower edges, neck portions on Vsaid` plates intermediatethe Vends thereof rising above said plates, a head portiondisposed between said Vplate neck portions and cantilevered forward to a point adjacent the front ends of said plates in spacedV parallel relationship to said Vplates upper edges ,forming an .open'carton edge Y receiving mouth therebetween with the cantilevered portion of saidV head constituting an upper jaw; said head jaw portion havingv an opening adjacent the end thereof ydelined by shearingv edges on the front and sides and a Y crimping edge at the rear; a top plate disposedover said head.in spaced relationship relative thereto forming a protective cover over said'opening and a receiving chambertlerebetween for lower jaw teeth, paired lower jaw arms pivotally mounted Yon said side' plates adjacent the rear Vthereof and ,having ends extending forwardlyVV to a point adjacent said Ahead opening, Va lower jaw plate interconnecting the extending ends of Ysaid arms, shearing teeth on said lower jaw plate on the front'and sides thereof and a crimping tooth atl the rear thereof adapted toreo-operate 'with said head opening corresponding portions; pairedV lever arms having front'and rear ends pivotally mounted Vintermediate the ends thereofY adjacentV the front ends thereof; said lever arms front ends being slidably VYdisposed beneath said lower jaw plate; a padV member interconnecting'said leverv arm rear ends, a spring mounted on said Ylower jaw -adaptedto urge saidl lower jaw and asso` ciated linkage out oli-associationV with said head to maintain the mouth area normallyropen, andra resilient mexnber in said head opening area adapted to v prevent the lanced and crimped portion of a carton from entering said head opening.

edges 30-33 and lance areas 70, 71, and 72 through the cartonforming bottom and side portions of the handle area and to crimp or score an area 73 forming the top or handle holding area such as designated by thenum'eral 64 of Fig. 8. Upon the handle opening being so formed,

2. A corrugated carton handle forming machine comprising spaced parallel vertical side plates having lower edges forming'a supporting base, a frontend, arear end, and upper'edg'es'on'said plates, means interconnecting said plates adjacent their Ylower edges, neck portions .on saidplates intermediate the ends thereof .rising above said plates, a head portion disposed between said plate neck portions'and cantileveredY forward to a point adjacent the front ends of said plates in spaced parallel relationship to said plates upper .edges forming an open carton edge receiving mouth therebetween with the cantilevered portion of said head constituting an upper jaw; said head jaw portion having an opening adjacent the end thereof defined by shearing edges on the front and sides and a crimping edge at the rear; a top plate disposed over said head in spaced relationship relative thereto forming a protective cover over said opening and a receiving chamber therebetween for lower jaw teeth, paired lower jaw arms pivotally mounted on said side plates adjacent the rear thereof and having ends extending forwardly to a point adjacent said head opening, a lower jaw plate interconnecting the extending ends of said arms, shearing teeth on said lower jaw plate on the front and sides thereof and a crimping tooth at the rear thereof adapted to co-operate with said head opening corresponding portions; paired lever arms having front and rear ends pivotally mounted intermediate the ends thereof adjacent the front ends thereof; said lever arms front ends being slidably disposed beneath said lower jaw plate; a pad member interconnecting said lever arm rear ends, a spring mounted on said lower jaw adapted to urge said lower jaw and associated linkage out of association with said head to maintain the mouth area normally open, and a resilient member in said head opening area adapted to prevent the lanced and crimped portion of a carton from entering said head opening; said shearing teeth on said lower jaw plate being elongated at the leading corners so as to initially pierce the carton portion and then shear out a three-sided tab.

3. A corrugated carton handle forming machine comprising spaced parallel vertical side plates having lower edges forming a supporting base, a front end, a rear end, and upper edges on said plates, means interconnecting said plates adjacent their lower edges, neck portions on said plates intermediate the ends thereof rising above said plates, a head portion disposed between said plate neck portions and cantilevered forward to a point adjacent the front ends of said plates in spaced parallel relationship to said plates upper edges forming an open carton edge receiving mouth therebetween with the cantilevered portion of said head constituting an upper jaw; said head jaw portion having an opening adjacent the end thereof defined by shearing edges on the front and sides and a crimping edge at the rear; paired lower jaw arms pivotally mounted on said side plates adjacent the rear thereof and having ends extending forwardly to a point adjacent said head opening, a lower jaw plate interconnecting the extending ends of said arms, shearing teeth on said lower jaw plate on the front and sides thereof and a crimping tooth at the rear thereof adapted to co-operate with said head opening corresponding portions; paired lever arms having front and rear ends pivotally mounted intermediate the ends thereof adjacent the front ends thereof; said lever arms front ends being slidably disposed beneath said lower jaw plate; a pad member interconnecting said lever arm rear ends, a spring mounted on said lower jaw adapted to urge said lower jaw and associated linkage out of association with said head to maintain the mouth area normally open, and a resilient member in said head opening area adapted to prevent the lanced and crimped portion of a carton from entering said head opening.

4. A corrugated carton handle forming machine comprising spaced parallel vertical side plates having lower edges forming a supporting base, a front end, a rear end, and upper edges on said plates, means interconnecting said plates adjacent their lower edges, neck portions on said plates intermediate the ends thereof rising above Said plates, a head portion disposed between said plate neck portions and cantilevered forward to a point adjacent the front ends of said plates in spaced parallel relationship to said plates adjacent upper Yedges forming an open carton edge receiving mouth therebetween with the cantilevered portion of said head constituting an upper jaw; said head jaw portion having an opening adjacent the end thereof dened by shearing edges on the front and sides and a stop constituting a crimping edge at the rear; paired lower jaw arms pivotally mounted on said side plates adjacent the rear thereof and having ends extending forwardly to a point adjacent said head opening, a lower jaw plate interconnecting the extending ends of said arms, shearing teeth on said lower jaw plate on the front and sides thereof and a crimping tooth at the rear thereof adapted to co-operate with said head opening corresponding portions; paired lever arms having front and rear ends pivotally mounted intermediate the ends thereof adjacent the front ends thereof; said lever arms front ends being slidably disposed beneath said lower jaw plate; a spring mounted on said lower jaw adapted to urge said lower jaw and associated linkage out of association with said head to maintain the mouth area normally open.

References Cited in the file of this patent UNITED STATES PATENTS 980,787 Hurd `Tan. 3, 1911 1,055,680 Stacy Mar. 11, 1913 1,188,429 Farrow June 27, 1916 FOREIGN PATENTS 26,027 Great Britain of 1913 359,869 Germany Sept. 28, 1922 271,950 Switzerland Feb. 16, 1951

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