US2781160A

US2781160A - Automatic double wall carton

Info

Publication number: US2781160A
Application number: US483680A
Authority: US
Inventors: Hubert V Bolding
Original assignee: Bradley & Gilbert Co
Current assignee: Bradley & Gilbert Co
Priority date: 1955-01-24
Filing date: 1955-01-24
Publication date: 1957-02-12
Anticipated expiration: 1974-02-12

Description

H. v. amma fi p AUTOMATIC DOUBLE WALL CARTON Filed Jan. 24-. 1955 ZNVENTOR #05557 M BOLD/N6 Feb. 12, 1957 H. v. BOLDING AUTOMATIC DOUBLE WALL CARTON 2 Sheets-Sheet 2 Filed Jan; 24, 1955 n u I u n u n n n n [I'll llllnllll I z I Fl?IIIIIwlfltrlfrlllflfllllllllll rllllllllllllll!IIIIIIIIIIIIII/illllhffllfi ATTORNEY United States Patent C 2,781,160 AUTOMATIC DOUBLE WALL CARTON. f

Hubert V. Bolding, Jefiersouville, Ind., assignor to The Bradley & Gilbert Company, Louisville, Ky., a corporation of Kentucky Applicationlanuary 24, 1955, Serial No. 483,680

' 3 Claims. (11. 229-41) This invention relates to a collapsible, single-blank, double wall carton which may be completely manufac-- tured by automatic machinery, and then shipped to a user in collapsed condition. The collapsed carton may then be placed in an automatic loading machine and erected by merely pushing the, outer flattened corners of the carton. No other operations are required by the user to place the carton in condition for use.

When the carton is in collapsed condition, the bottom members are in face-to-face engagement with each other. Upon erection, the bottom members are automatically moved to their bottom forming positions and during this movement the inner walls will be moved by the bottom members from face-to-face engagement with the outer walls into spaced relation thereto.

Preferably one of the bottom members is dimensioned to provide an upper smooth cover ply for the bottom, its configuration being the same as the area defined by the inner walls, when erected. In a carton of this smooth, bottom type, it is preferred that the bottom members be sandwiched between the inner and outer walls when the carton is in collapsed condition. Upon erection the bottom members will be automatically drawn down to their bottom forming positions and during this movement the inner walls will be drawn downwardly by the bottom members from face-to-face engagement with the outer walls into spaced relation therewith.

To provide rigidity to the erected carton, a bracing structural relationship is provided at the adjacent edges of the inner walls. Further, the smooth upper surface bottom member is equipped with locking tab means which automatically coact with suitable slots in an inner wall upon erection to maintain the carton in erected condition.

Attempts to meet the needs of the industry in this field are exemplified by the patent to Arneson, No. 2,- 349,241, and the patent to Freel et al., No. 2,581,400. This invention, as will be further explained hereinafter, presents a new concept in box design which enables the production of a collapsible carton of a certain structural type which can be completely assembled by the'carton manufacturer, shipped in collapsed condition, and erected by machinery exerting minimum forces on opposite collapsed corners of the carton. Shipping costs are reduced, erection costs are minimized, and shut-down losses of the carton loading machine due to erection failures are drastically reduced.

=Various other objects and meritorious features of the invention will be apparent from the following description Fig. 3 is a perspective view looking at the upper portio of the carton in collapsed condition;

Fig. 4 is a'sectional side view taken on line H 0! Fig. 2' Fig. 5 is a sectional top view taken on line' 55 of Fig. 2; V v

Fig. 6 is a perspective view looking at the bottom portion of the carton in partially erected condition;

Fig. 7 is a perspective view looking at the botto portion of the carton in erected condition; 3'

Fig. 8 is a plan view of the end'portion of asingle integral blank on reduced scale designed to provide a covered box; and

Fig. 9 is a sectional side view of the end portion. of

the blank shown in Fig. 8, this view showing this portion of the blank in erected condition.

Referring now to Fig. 1', it will be seen that the single blank is cut and scored to form four

outer walls

15, 16 17 and 18, an end attaching member 19 being provided on wall 18 to enable fixed connection of wall 18 to wall 15. Cross hatching on member 19 as well as elsewhere on the blank is intended to indicate glue areas.

Top frame panels

20, 21, 22 and 23 are integrally hinged by their

respective score lines

24, 25, 26 and 27.

to the top edges of their respective outer walls 15 to 1 8.

Bottom anchor panels

36, 37, 38 and 39 are integrally hinged by their

respective score lines

40, 41, 42 and 43 to their respective inner walls 28 to 31.

At the bottom edges of'the outer walls 15 to 18 are integrally hinged

bottom members

44, 45, 46 and 47 by their

respective score lines

48, 49, 50 and 51. Glue areas 52, 53, 54 and 55 fixedly secure the bottom anchor panels 36 to 39 to their respective bottom members 44 to 47. I

Bottom folding tabs

56 and 57 are integrally hinged to the

bottom members

44 and 46 by

diagonal score lines

58 and 59, respectively. Cross hatching on the

bottom folding tabs

56 and 57 indicates glue areas which fixedlysecure the tab 56 to the adjacent bottom member 45 and the tab 57 to the adjacent bottom member 47.

The edges of

top frame panels

21 and 23 are diagonally cut to facilitate assembly and the edges of

top frame panels

20 and 22 are convexly cut to cover the edges of:

top frame panels

21 and 23 and present a tailored appearance as shown in Fig. 2. The corner edges of the inner walls 28 to 31 adjacent the top frame panels 21 to 23 are also diagonally cut to facilitate assembly.-

It will be noted that the adjacent edges of the inner walls 28 to 31 are slightly spaced from each other and;

that the bottom anchor panels 36 to 39 are shorter than their respective score lines 48 to Sladjacent to which they are glued; this facilitates assembly also.

The

inner walls

28 and 30 have score lines 60-61 and 62-63, respectively, which are preferably cut-score lines to provide minimum resistance to swinging movement of the edge spacer panels 6465 and 66.67.

The

inner walls

29 and 31 have cam edges (is-69 and 70--71, respectively, which engage their respective edge spacer panels 64-65 and 6667 to swing-them: outwardly as seen in Fig. 5 when the carton is erected.

The

bottom members

44 and 46 are triangular in configuration and the

bottom members

45 and 47 have diag-.

onally cut edges extending from their

respective score lines

49 and 51 which form trapezoidal portions from which facilitate erection of the carton.

fl a it V 3 Locking tabs 75 extend firom the rectangular portion '12. oi bottom member: 45 and upon erection of the carton, these tabs 75 move downwardly past the face of inner wall 31 anclinto the slotss76 formed by the completely severedportions 1hr score line 43, as shown Referring now to- Figs. 2 and 3,-it-will"be seen that the collapsed carton of Fig. 3 may be erected front-a substantially collapsed'parallelogram configuration to the rectangularconfigurafion of Fig. 2* by' merely-applying pressure inthe direction of' arrows SO-and 3 on a first pair'of diagonally opposite corners 78 and 7-9. The 'rected-cartomwill be "rigidly locked in position by the "engagement oflooking tabsi76"in"s1ots 76; "Goliapsing of the,. carton may be readily accomplished by applying pressiire 'onthe other or second Pa r of diagonally opposite corners- 8 2 and 83C: t

When erecting pressure applied to the first pair of 6oiners""'1 and 79, bot-tom fjol'dingtab 57, which is'fixedly "connected tofb ott om member 4 7 andintegrally hinged to bottom member -46 bya score line 59, causes downward hinged movement of the bottom members 46' and 47' from their yertical collapsed martian within the collapsed outer walls 15 to 18 of Fig. 3 to? a horizontal condition a t 'th e bottom ofthe erected'outerwalls as seen in Fig.2.

Similarly, the bottom folding tab 56 causes downward hinged movement of the

bottom members

44 and 45.

. The score" line 59, to which bottorn' iolding tab 57 is integrally hinged, extends diagonally'upwardly from the bottomof corner '79 and toward corner 78 when the carton is collapsed. ,Similarly, the. score line 58, to which bottom folding tab 56 is integrally hinged; extends diagonally upwardlyfrom the bottom ofcorner 78 toward cor-. ier 79 when the carton is collaps ed. This arrangement will be apparent from Fig, 6 wherein the carton is shown partially erected condition and the

soore lines

58 and 59 are rnoving toward their horizontal position as shown in V Fig. 7F. r V. Fhebottom folding tab 57 in effect forms an L-shaped bottom forming unit'of bottom members 46 and: 47 which A cover 90 with locking extensions91, which mate with ,collapsible and double wall features are retained with the o e ed 119 des n nste d of the i le thi kn ssh e slots (not. shown} at the upper: edge of wall-16, is in: tegrally hinged to the top edge of the outer-wall 96 on hinge line 92. To the lower edge of outer wall96 is integrally hinged a bottom member 93, a return bottom flap 94, an inner wall 95, a top frame'panel 97 and a glue panel 98 The cross hatched areas indicate glue areas- Bets-I na new t Fi 9 t will be seath tom member .47 .ot Eighl thc covered box has aztwo-p bottom member made up of member 931 glued to return flap 94. Various modifications of this invention will be apparent to those skilled inthe. art. and for that reason I wish to limit myself only within the scope of the appended claims.

I claim: I 1. In a single-blankcollapsible carton, the oombination f as: no fr l s hii a li' e ted teseflz l an fsmar ing acontinuous andcollapsible outenwall structur it's ll h i a to? ed e n 'b mas se tour top trame panels, each of said top frame panels being integraily hinged to the top, edge'of one of said outerwa llsl and extending-inwardlythereof, fourinner Walls, each "of 7 said inner walls being integrally. hinged to one of said top frame panels and extending in parallel spaced relation to: its; respective outer wall: when in erected condition,

four bottom: anchorpanels', each of said bottom anchor panelsbeing-integrally hinged to one of said inner walls, four bottom members, each of said bottom members being I integrallyhinged to the bottom edge of one ofsaid' outer is moved'aspa Single unit during erection ofthe box. Likei wise, the tab 56 joins bottom members44 and 45 into a, singl'e L-shaped bottom forming unit. a I

As the tab 56 pivotally moves bottom members 44 and" V 7 45m dhorizontal bottom forming position, the anchor panels 36-and 37- which'are fixedly secured to bottom members {i iand 45, respectively, are carried in an arcuate 'path from a vertical position to a horizontal position, causing the'inner walls '2 8 and 29, to be spaced from their respective outer walls 15 and l6 and drawing top frame panelsltlpand 2i downwardly from their upwardlyextending-position ot Fig. 3 to their horizontal'position of Fi'gslZ and 4-.'

As thefinner-walls 28 to 31 are pulled downwatjdlyl and mo iedhorizontallywith respect to. each other during erection of the carton, the can]. edges 63 to 71 engage their respective-edge spacer panels 64 to 67 and force themoutwardly to a position 'at right'angles totheir re spective inner wallsi28 andSi). The top' sectional view walls 29 'and3-1, respectively. The cam edges 69 and Walls, said bottom anchor panels being fixedly secured to their respeetive bottom members, afirst opposed pair of said bot-tom members having diagonal edges'at diagonallyopposite positions, and two-bottom folding tabs, 1

each of said bottomfolding tabs-being integrally hinged to one of said diagonaledges and fixedly secured to" that one of the remaining opposed pair of said bottom members lyingrespectively adjacent thereto, a first pair of i opposedinner walls. having edge spacer panels integrally hinged at their vortical'edges, and the remaining pair of inner-walls having cam edges'attheir vertical edges for swinging said edge spacer panels outwardly toward and maintaining the vertical edges of said spacer panels in.

of Fig. 5 shows edge spacer panels and 67in final erected position inface-to-face engagement with the inner 7i l' eirteiidtoward and aid in bracing onter wall 17 Sinii:

lar-l-y, edge-,spacer panels 64 M121 65are in 'lf'ace-to-fiace contact '

inner walls

31 and 29, respectively, and they cam edgesofi and 7-1 extend toward outer wall 15'.

valious=modiiications of this invention may be made;

7 'to'iadapt the carton for holding various products in different' fashions; in Figs; 8 and 9 is shown in reduced scale-a'modification of the blank which enablesithe pro- *v'isionoian.intingrally. hinged coverfroni asingIebIanlc, 7

' ofimateriali The same numerals as appliedto, the blank ofiEig; l. are, applied in Fig. 8 wherepossible. @An outer walh96tisiintegrallyhinged toonter wall-1 117 as in Fig. l.

into engagement with-their respective outer walls and-tor rigidifying abutting. engagement with their p i outer'walls.

2. In a single-blank collapsible carton, the combination of ion; vertical onter'walls hingedly connected-together andforming a continuous; rectangular and collapsible onter wall structure, said. outerwalls includingthreeouften walls and a cover-hinging outer wall ,eachofsaid-three' outerwalls havinga top edge and a bottom dge,-three,-

. horizontal top frame panels, each of said frame panels J 'being'integrally. hinged to the top edge of oneof three said outer .walls and. extendinginwardly thereoh 'three;

inner walls, each of said inner walls being integrally hinged tonne of said threetop frame pan els and depend ing. in. parallelism with its respective, outer wall, three! j bottom'ancl ioripaneigeach bfjsaidvancho'rpanelsbeing ,integrally hinged to one of said three innegwalls, four bottomf'membersieach of said bottom members being integrallyhinged tothe bottom edgeot one ofisfaidonter walls, said three bottom anchorjpanels} being. fixedly' secured to. their respective/bottom members the.,bottom top edge of said fourth inner wall, and a glue panel integrally hinged to said fourth frame panel and afiixed to the inner upper surface of said cover-hinging outer wall, and a cover integrally hinged to the top edge of said cover-hinging outer wall, a first opposed pair of said bottom members having diagonal edges extending diagonally inwardly from a first pair of diagonally opposite corners of the carton, and two actuating tabs, each of said actuating tabs being integrally hinged to one of said diagonal edges and fixedly secured to the adjacent one of the remaining opposed pair of said bottom members whereby upon collapsing the carton into substantially a collapsed parallelogram configuration, the bottom panels are moved upwardly within the carton and the actuating tabs are sandwiched between their respective adjacent bottom panels, a first pair of opposed inner walls having edge spacer panels integrally hinged at their vertical edges, and the remaining pair of inner walls having cam edges at their vertical edges for swinging said edge spacer panels outwardly toward and into engagement with their respective outer walls and for maintaining the vertical edges of said spacer panels in rigidifying abutting engagement with their respective outer walls.

3. In a single blank, collapsible carton, the combination of four vertical outer walls hingedly connected together and forming a continuous rectangular and collapsible outer wall structure, each of said outer walls having a top edge and a bottom edge, four horizontal top frame panels, each of said frame panels being integrally hinged to the top edge of one of said outer walls and extending inwardly thereof, four inner walls, each of said inner walls being integrally hinged to one of said top frame panels and depending in parallelism with its respective outer wall, four bottom anchor panels, each of said anchor panels being integrally hinged to one of said inner walls, four bottom members, each of said bottom members being integrally hinged to the bottom edge of one of said outer walls, said bottom anchor panels being fixedly secured to their respective bottom members, a first opposed pair of said bottom members having diagonal edges extending diagonally inwardly from a first pair of diagonally opposite corners of the carton, and two actuating tabs, each of said actuating tabs being integrally hinged to one of said diagonal edges and fixedly secured to the adjacent one of the remaining opposed pair of said bottom members whereby upon collapsing the carton into substantially a collapsed parallelogram configuration, the bottom panels are moved upwardly within the carton and the actuating tabs are sandwiched between their respective adjacent bottom panels, a first pair of opposed inner walls having edge spacer panels integrally hinged at their vertical edges, and the remaining pair of inner walls having cam edges at their vertical edges for swinging said edge spacer panels outwardly toward and into engagement with their respective outer walls and for maintaining the vertical edges of said spacer panels in rigidifying abutting engagement with the inner surface of their respective outer walls.

References Cited in the file of this patent UNITED STATES PATENTS 797,113 Hiers et al Aug. 15, 1905 1,228,063 Scudder May 29, 1917 2,349,241 Arneson May 23, 1944 2,581,400 Freel et al. Jan. 8, 1952 2,628,012 Goldshall Feb. 10, 1953 2,702,154 Linson Feb. 15, 1955 FOREIGN PATENTS 197,998 Great Britain May 23, 1923