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Publication numberUS2821827 A
Publication typeGrant
Publication dateFeb 4, 1958
Filing dateJan 23, 1956
Priority dateJan 23, 1956
Publication numberUS 2821827 A, US 2821827A, US-A-2821827, US2821827 A, US2821827A
InventorsBradshaw Harold G, Sanderson Martin I, Shaw Hugh H
Original AssigneeCochran Equipment Company
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Carton closing machine
US 2821827 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

Feb: 4,1958 H. H. HAW Em 1 2,821,827

CARTON CLOSING MACHINE A T 'TURA/Ens Feb. 4, 1958 H. H. sHvAw ET AL 2,821,827 K CARTON CLOSING MACHINE Filed Jan. 25, 1956 2 Sheets-Sheet 2 INVENTORS HUGH H. SHAW MART/N SANDERSON HAROLD BRADSHAW ATTORNEYS United States Patent O CARTON CLOSING MACHINE Hugh H. Shaw, Martin I. Sanderson, and Harold G. Bradshaw, Salinas, Calif., assignors to Cochran Equipment Company, Salinas, Calif., a corporation of California Application January 23, 1956, Serial No. 560,717

7 Claims. (Cl. 53-124) This invention relates to a closing machine for cartons, and more particularly to an improved machine of this type which is especially adapted, in connection with cartons lled with produce, such as lettuce, and the like, to buttress all four of the side walls of the carton while causing the closure iiaps of the carton to be moved to a closed position for sealing.

The subject apparatus constitutes an improvement over the apparatus disclosed in a commonly owned co-pending application, Serial Number 506,937, iiled May 9, 1955. Both the apparatus disclosed in said co-pending application, and the improved apparatus forming the subject matter of the present application are adapted to be embodied in a field crop packing machine of the type which is employed to harvest and pack eld produce, such as lettuce. The machine of said co-pending application operates to fold a pair of oppositely disposed side walls of a lettuce-filled carton against outward bulging asl it moves the closure aps of the carton to a closed position for sealing. It is now required that such lettuce-filled cartons have all four side walls thereof retained in against outward lbulging when the closure flaps are closed for sealing.

The essential object of the present invention is to ernbody means in the machine of the co-pending application whereby said machine may be adapted to act on all four side Walls, instead of merely two, during the carton closing operation.

(lther objects and advantages of the invention will be apparent from the following description taken in conjunction with the drawings forming part of this speciiication, and in which:

Figure 1 is a view in perspective of the carton closing machine of the present invention, with one of the closure ap presser plates being shown in dotted outline to prevent masking of the machine parts disposed behind said presser plate;

Figure 2 is a view taken along lines 2-2 of Figure l of the right half of the machine;

Figure 3 is a view similar to that of Figure 2, but showing the carton side holding elements in operative position;

Figure 4 is a detail View taken along lines 4-4 of Figure 2;

Figure 5 is a detail view taken along lines 5--5 of Figure 2; and

Figure 6 is another detail view taken along lines 6-6 of Figure 3.

With immediate reference to Figure l, the machine comprises a rectangular frame 10 having integral therewith legs 12, a pair of channel members 14 secured to frame 10 at oppositely disposed sides of the top thereof, a plurality of conveyor rollers 16, and pair of oppositely disposed carton closing assemblies indicated generally at 18 and 20.

The carton closing assembly 18 comprises a vertically disposed plate 22, a plate, a plate 24 having a hinge con- ICE ing into sleeve members iixedly secured to frame 10 and being adjustably secured thereto, as by set screws 32. The plate 22 has also secured thereto a bar 34 which is provided at its lower end with means for pivotally mounting the lower end of a two-way acting hydraulic cylinder 36. The piston rod 38 of cylinder 36 is pivotally secured, as by pin 4t) to an arm 42, said arm having a forked end 44 which is Xedly secured, as by welding, to plate 24.

The carton closing assembly 20 comprises plate 46 secured to posts 48 which are supported in sockets 50 attached to a transversely disposed plate member 52 forming part of a wheel supported carriage assembly which is supported on guide rails carried by frame 1t) below conveyor roller 16. Plate 54 is provided with a hinge connection 56 with plate 46, and plate 54 has associated therewith, Vin the manner described for plate 24, the two-way acting lhydraulic cylinder 58.

The machine, as thus far described, corresponds to the machine which is disclosed in further detail in the aforesaid co-pending application. As disclosed in said application, when a lettuce-filled carton is brought onto the roller conveyor 16, control means are actuated to cause a hydraulic cylinder to move the carriage supporting carton closing assembly 20 inwardly of frame 10 to cause plates 22 and 46 to press against oppositely disposed side walls of the carton, and at the sam-e time the cylinders nection 26 with plate 22, cylindrical post members 28 tfuedly secured to plate 22said post members 28 extend- L to impart clockwise rotation to lever arm 74 and swing4 36 and 58 are actuated to cause the plates 24 and 54 to pivot downwardly and press the closure flaps of the carton to a closed position.

The following elements have been added to the machine to convert it to a machine which will retain all four side Walls of the lettuce-lilled carton against outward bulging when the closure ap presser plates 24 and 54 are moved downwardly. Carton closing assembly 20 is provided with an arm 6l) which upon endward movement of the carriage supporting the assembly is pivoted to press against the end of the carton, as shown in Figure 3, and said assembly is further provided with another arm 62 which upon endward movement of the assembly to the carton engaging position is moved forwardly to be in a position to retain the other end wall of the carton against bulging, as also shown in Figure 3.

The arm 60 is secured to a shaft 64 which is journalled for rotation in sleeve member 66 secured to plate member 52 and within semi-sleeve 68 carried by stub arm 70 which is secured to plate 46. A set collar 72 (see Figure 4) attached to shaft 64 abuts the upper end of sleeve 66 and supports the shaft for rotation. Secured to the lower end of shaft 64 is a lever arm 74 which is pinned toa clevis 76. A second clevis 78 is pinned to a side arm 122 of lever arm 82, and the two clevises 76 and 78 are connected together by a rod 80 having threaded ends of opposite hand. Lever arm 82 is pivotally connected to a fixed arm 84 which is secured to the transverse plate member 52. Lever arm 82 is provided at its free end with a roller 86 which engages a track member 88 having a curved end 90. The track member 83 is secured to frame 10for longitudinal positional adjustment, as by bolts 92 extending through elongated slots, not shown, formed in the track member. Tension springs and 94 interconnect lever arm 82 and clevis 76, respectively, with frame 10.

When a lettuce-lilled carton 96 is moved onto the conveyor 16 between plates 22 and 46 and when plate 46 is caused to be moved toward the carton in the manner described in detail in the aforesaid co-pending application, lever arm 82 is caused to swing in a counterclockwise direction, with reference to Figures 2 and 3, and the roller 86 moves up the curved end 9i) of track member 88,v

thereby causing the clevis aud rod arrangement 76-80 sealed, the springs 92lland 94 cause thearm `6 0 and 1the lever coit'rol'fsystemtherefor to 'move ifr''n'the 'position Figure 3; te the positie a sure 2; rnp a: arm 6o does 'resultare-re vrithrtuereuiorarffom trie veyor ofv'thesealedf'carton; t

TheV factthat 'trie track member l884 i's11b1'gituiiil1y adjustable'audthe further fa'c't that the clcvifsesf and 78` may be moved either lcloseruftogieth'e'r" or farther' apart' by' selective rotation of 'rod 80" 'renders tric" arrriA '60'A and lever control system therefor capable 'f'jp ""er opera- P tion in the manner' descr'bed'regrdlessjuof 'the 'width'of' the particularcait'dn be'iri aeted"'pon. Thus, by nj'vi'rg' the track'rnernberfSS tothe lefLwith referenceftoFiigires 2 and 3, the arrnovvill be Caused 'to l'i'aVea Y90" movement for a lesser distance "of movement 'towardtlec'art ofcarton closmgass'embly 20: Such left'w'ald adjustment of the` track memb'erv adapts the" machine to act' u'pon cartons of greaterV width than'carton 96. O`n the other hand, when track member'88 is adjll'sted: to' thef'r'i'ght, the machine is' adapted to a'ct poncartonshavihg'a'lesser width than carto'n' 96; 'Rod' 80 is in each -case adjusted: in accordance with the positional4 adjustment of the traek member.V I

Arm szfi'smouiitcd iua s1idelwayf'9s1which has-:infami 100 integral"therewith'seured'to plat'el. rm"62 i's Iprirvided' with-an' :actuating arm 102' havinganelongated 'slt 10:41 at one end through' which a' pi`11"106 carried by' arm 62` extends, with' said' arm 102 *having a' p in :1508"at" the4 other end thereof residing with a verticallyl 'elongated slot 110 formed in bracket member 112'i7'redlyse'cured to frame 10. The heads o`f pins 106k and 108-areof`grea'ter diameter tha'n the width of the respective4 slots 10:21 v and 110' associated therewith. Another arm 1121:'fix'edly'fcon-4 nected to plate 46 is'fpivotallyconnected at 116 `'to arm102v.

When the carton closing assembly '20 is-moved from the position ofy FigureA 5 to that of Figure 6, arm f6`2iis" moved forwardly|- through` slide way' 9'8i'to' ay retaining "posii tionwith respect "to Ithe other rend'of carton 926:. y'In or'der to 'prevent damage to the endl wall of the' carton, the armI 62` is-provided with a roundedlend 1181 When' th'eassernbly isv withdrawn to fthef'cartonf release position, Aatil' 62' is'caused to return tothe Apcasition o'f Figure 55 vtfhereV it is not in the way of thenext'cartn to be fil'noi/edorito-4 the Conveyor 16 ySl'ot 104 adapts the Iassentially'ac'iate movement of a'rm- 1:02 to the linear movement f'fa 62,

movingf said@ one' plate; the combination' therewith' of rs'tl arm' means connected to one' end yof'sai'd one plate-adaptedupon movement of -saidone plate toward thefotlrer 'o'f said'plates to be swung-into a-rig'h't angled'fpsition with respect to said one plate to embrace an 'end' of ai ille'dlv carton supported by saidl frame, and second 'armfmeansf connectedto the other' endl of said o'ne plate adapt'edfuip'onmovement of said one plate toward the other ofsaid.platesA to be projected transversely lof` said frame to embrace the other end of a lilled carton 'supportedfby's'aid frame', whereby the side anden'd walls'o'f saidca'rto'n wi1l'bes up-` portedv against undesiredA bulging'A while tle' vclosure -apsf the'reofl'are c'los'e'dand securedclosed.

2. Im apparatus ofi the type described having l'a'supp'cuiti frame adapted to receive a'ndns'upportza -iillcdxcartm pair-of oppositelyandfvrticallydisposed carton-Isidepresi` sure plates' carried' by said trame;- at least one or said plates being attached to said frame for movement toward moving said one plate; the combination therewith of a rst arm pivotally connected' to one end of said plate, 'a second arm slidably connected to the other end of said one plate, said rst arm being normally parallel to and in alignment with said one plafe,s'aid second arm being disposed ata right angle to saidrone plate andhavng its forward end substantiallyin'aligriihent`therwith, 'lever means mountedfonsaid one .plate inconne'cte'd' rel'ationt'wit'h s'aid first arm" 'and in engagementV Withsad-t'rame' adapted'upo'n movement of said, one' plate toward the other` of said plates to-pivot said rst armintoa right angled position 'with respect to 'saidone platetbemb'race an end of a'iilled carton supported ofnf'said'fiariie; andleveri'neans mounted on said frame and having a connected relation with said one plate and said second arm adapted upon movement of said one plate toward the other of said platesto slide said Vsecond 'arm' forwardly to embrace 'the o'fhe'r' 'end 'of 'a lledarton supported by'said fam'e.

31 The"combinaftion set forth incla'im 2, said 'irst mentioned lever means comprising an arm tbredlyv disposed' in 'relationv 'tojs'aid 'one plate, la llever 'Having' one 'end "thereof'pivtally connected to' the cndof said' 'Xe'dly dis'- posed arm and having at its otherend' a roller'i'nengg'emerit with a frame supported tra'ckw'ay 'having an 'arcuatel Ienti", 'a link hat/ing its' e'1ld`sl pivo'ta'lly 'connected to said: lovin-"andtoa stub arm secured to' said 'first arm, said roller being adaptedj't' travel along said trackway'and" alon'gtlhje rcuatee'nd' thereof as said one plate' 'isi moved toward"the other of" said plates to`A cause said link topivotaliy ihove 'said stub arm and said rst arm, and spring' means' interconnectng'said lever a'nd said link with said frai'li'e adapted rupon movement of said one plate away from 'the other of 'saidrplaltes to return said first arm toits nc'rtrltillyV parallel and aligned' position with respect to said'onfe plate, saids'ec'ond mentioned lever means comprisin'ga lever arm' 'having'it'supper vend slidably and pivotally' connected to said second arm,A having its lower end- Lslidably and pivotally' connected to said frame', and having "an intermediate pivotal connection with a s'tub arr'rr'secure'dv to' said one plate. n

4; The" combination set forth in claim 3"c'omprisin'g, further, 'means for adjusting the degree of pivotal movement of said rst arm for a given degree of movement of said dnefplte 'whereby said rst arm may be' pivoted'into embracing relation with the ends of' cartons of varying widtliwleh said one plateis' moved into engagement with the sides of said cartons, said means comprising an adjustable connection betweensaidframe' and trackway permitting longitudinal' movement o'f the `latter with respect to the former, "and4l means for varying thc effective length of 'said lilik'.

5. Carton handling apparatus comprising a Ys'rlp'p'ort:A frarneg'aroller erveyormoiitedthereon', al plate, means vertically positioningr said pl'a'fei'wth 'esp'ectto' said 4frarn'e andf'adptiigfsaiu putc forriiovcutc'nt toward said con- Ivey'o'vr.v topress" against'a' side wall 'o'f "a filled "carton dis'- posd' thereon an'dfo'r Anro'v'errrent away from said conveyor,l an arm mounted on said plate, normal thereto and adjacent* one end tliere for 'reciprocal longitudinal movement, .means interconnecting. said arm and said Ifrar'i'eiatn'i4 :actuated by moveneiiff 'said plate adapted upon movement of said plate toward said frame to 'ex'- tend"s aid acros's`fsaid conveyor' to embrace an end wall 'off `lilled"'cato'ir on said"eo'nveyor andy adapted upon mvenerlto'f "said'fplate'lwy fr'or'n"s'aid 'frame to with'- draitffsaidl 'h rontfof:tliepathfoitirovemeiit of a cartonv onsiaid'ooii'veyfor'fA 6; Carton 1handling' apparatus: "comprising :af 'support frame, a roller conveyor mounted thereon, a plate,-'r'neans" vertically ipositioningrsai'd platefwithrespect "toisa'd frame andi-adapting =saidpldtefor movement toward'- @saidrc'nf vey'r' Ltoipr'ess'i againstatsidewallfof-aJ-lled catn'tdi's# from said frame to swing said arm out of the path of 10 movement of a carton on said conveyor.

7. Carton handling apparatus as set forth in claim 6, said last mentioned means embodying means for adjustment of the same to enable said arm to be swung transversely of said conveyor as the distance said plate moves is varied in accordance with variations in the width of cartons being handled.

References Cited in the le of this patent UNITED STATES PATENTS Barrett Ian. 5, 1937 Wright Aug. 9, 1955

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2066449 *Aug 20, 1934Jan 5, 1937Insulite CoBundling apparatus
US2714792 *May 29, 1953Aug 9, 1955Morris Thiery AlphonseCarton closing machine
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4250683 *Mar 19, 1979Feb 17, 1981Harry BarnettBox closing machine
US4627217 *Aug 20, 1985Dec 9, 1986Frito-Lay, Inc.Apparatus for automatically closing L-slide lock cases
US4713928 *Sep 9, 1986Dec 22, 1987Tisma Machine CorporationAutomatic packaging machine for closing over filled boxes
US5975158 *Aug 10, 1998Nov 2, 1999International Paper CompanyMethod for preventing bulge of liquid packaging
U.S. Classification53/526, 53/377.3
International ClassificationB65B7/16, B65B7/20
Cooperative ClassificationB65B7/20
European ClassificationB65B7/20