US2576697A - Carton lining device - Google Patents

Description

Nov. 27, 1951 E. M. ROACH 2,576,697

I CARTON LINING DEVICE Filed May 17, 1945 l 2 SHEETSSHEET l Nov. 27, 1951 E. M. ROACH CARTON LINING DEVICE .2 SHEETSSHEET 2 a 3 w 3% m i 2 hnvlhnL F J 7 g 0% 1; a u w w 4 j.

Filed May 17, 1945 o a9 7 3 5/ A w 0 4 9 7 5 1/ ma? fl 7 7 N5 m 3 o H 741 WC f u Patented Nov. 27, 1951 CARTON LINING DEVICE Earl M. Roach, Chicago, Ill., assignor to Arvey Corporation, Chicago, 111., a corporation of Illinois Application May 17, 1945, Serial No. 594,217

3 Claims.

This invention relates to a novel carton lining device.

More specifically, my invention relates to a device for facilitating the operations of expanding and shaping an initially flat liner bag to adapt the liner to enter and substantially conform to the interior surfaces of a relatively rigid rectangular container.

It is a particular object of my invention to provide a former or mandrel-like device which may be readily operated by an inexperienced person, such as a housewife, for the home lining of cartons in, for example, the packing of foods to be home frozen.

It is a further object of my invention to provide a device of the class described which is collapsible as a whole, and which may be thus economically transported, and if desired sold packaged as a unit with other components, such as knocked-down cartons and fiat liner bags. If desired, the package may further be adapted to provide a supporting base for the shaping device.

Further objects relate to details of construction, arrangement of parts, economies of construction, and other advantages of my invention which will be apparent from a consideration of the following specification and drawings, wherem:

Fig. 1 is a perspective view of one form of my device.

Fig. 2 is a front elevational view thereof in collapsed form, further graphically illustrating the manner of collapsing it, and with a liner bag drawn thereover.

Fig. 3 is a side elevation of the illustration of Fig. 2.

Fig. 4 is a fragmentary detail view, partly in section, illustrating a modified form of supporting base adapted from use in several forms of the device of this invention.

Fig. 5 is a fragmentary elevation of my device, with an expanded liner bag thereover, further graphically illustrating the manner of shaping the liner.

Fig. 6 is a fragmentary elevation partly in section illustrating the insertion of a shaped liner in a container by employment of a device of the present invention.

Fig. 7 is a perspective view illustrating a container lined in accordance with the present invention.

Fig. 8 is a side elevational view of a modified form of the device of the present invention.

Fig. 9 is a plan View of the former device of Fig. 8.

Fig. 10 is a fragmentary front elevational view of the device of Fig. 8, further graphically illustrating the manual collapsing thereof and a liner bag engaged thereover.

Fig. 11 is a plan view of the collapsed former device of Fig. 10.

Figs. 12 and 13 are fragmentary details, the latter in section, illustrating the lower end portion of the device of Fig. l, and the supplemental locking and expansion means in its supporting base.

Fig. 14 is a perspective view, with parts broken away, of a fiat flexible liner bag adapted to be expanded and shaped by means of the devices of the present invention.

Fig. 15 is a section on line 15-45 of Fig. 14.

Fig. 16 is a side elevational view of another modified form of device of the present invention.

Fig. 1'7 is a side elevational view of the form of device of Fig. 16, viewed from a face thereof, and in collapsed form.

Fig. 18 is a side elevational view of the device of Fig. 16 in the collapsed form of Fig. 17.

Fig. 19 is a fragmentary detail view of the lower end portion of the former of Fig. 8.

Referring to the drawings, the form of my device as illustrated in Fig. 1 comprises a hollow form expandible to rectangular section, composed of a relatively rigid but flexible material, such as for example cardboard, and comprises a pair of opposed facing panels Iii-I0, having hinged to and between each of their opposed side edges the outwardly foldable and collapsible side panels |l-I I, and to and between their upper ends, the collapsible and outwardly foldable top panel I 2.

The panels I I are defined from the face panels I0 by means of score lines |3-l3, and are each further formed with a medial score line I4 to adapt them to collapse and fold outwardly. The top panel I2 is likewise defined from the facing panels ID by means of the score lines I5! 5, and is adapted to be collapsed and folded outwardly along its medial score line I6.

It may be understood that the score lines I3, [4, I5 or I 6 may be conventionally formed either by lines'of indentation or lines of partial severance to form or permit hinges to remain at the indicated lines, and to permit directional folding thereat. In the alternative, each of the panels I0 and the panels I I and I2 and their component portions may be separately formed and joined for hinging and folding movement by suitable connectingweb, strip or other hinge means.

This mandrel-like former device is preferably sion of the mandrel in expanded form, and thusir by embracing engagement prevent it from collapsing at the lower end. To aid in maintaining the lower end of the mandrel .thussupported and expanded, a pair of opposedifacess of expanded;

mandrel defined by the sides I i, may be provided with downwardly opening slots .I9,.as shown. in.

Fig. 12, for reception of one, or the two transversely extending upwardly opening slotte'djitabs 20, which form a component part of the supporting based i.

. Forreception-and expansion of a normally: flat open mouthed liner bag 2i, the uperportionof the former or mandrel is manually collapsed by grasping the opposed faces is thereof adjacent their top edges so as to reduce the section thereof"* and tocol-la-pse itsfoldable panel-portions, after which a liner bag'Zi may be'readily'drawn thereover: to :the'full extent of the liner bag illustratedxin Fig. 2. Thereafter, as illustrated in Fig. 5, by merely pressing down on the collapsible top:panel-l2-, the sidefacing panels 50 are caused to be expanded into substantially parallel relationship to each other, to' thus cause the mandrel to assume throughout a rectangular sect-icn'and to. transversely expand the bag to rectangular form; Thisexpansion may be likewise accomplished .by. pressing inwardly against the opposed collapsible side panels I ii 5. After this the ears-22 of the bag-may be knocked down, and a rectangular relatively rigid carton 23' drawn thereover. The expanded and shaped linerafter having-thus entered :and substantially conformed to the. interior surfaces'of the container:23, may by; frictional engagement be withdrawn therewith fromthe mandrel.

Although I have illustrated and described a supportingbase with-respect tov the'foregoing form, andalthough I-prefer the use of a supporting-:base, Imay dispense with such-use. In such instance'the entire mandrel may be manually collapsed,.a liner bag: drawn thereover, and the mandrel again expanded to square up the bag by grasping'its collapsible sides to expand and fully space the facingpanels 19 from eachother.

As a further alternatiVe I may employ a supporting base such as that indicated at M ni-Fig. 4;-;having:a. stud' 25 of a rectangular transverse cross-section conforming to that defined by the inner faces of an expanded mandrel, said stud being insertablewithin and thereb engaging the lower end portion of:,an. expanded mandrel-or former device generally indicated as 26, which mayxbesax mandrel suchasthat shownin Fig. l. or the modified formzshownwin Fig. 8. In like manner the'modifiedform.of-construction of Fig. 8;..which will-be hereinafter described, may also be: used: without a supporting-base of any kind; However, as previously indicated, the use of a sup.- porting 'basein .all cases is preferred since the operation is facilitated thereby.

When. the employment of supporting, bases dispensedywith, in .thedescribed forms f.my,de!-" vice,:.the component: facing and Zcollapsiblewa-ll's or panels. thereof may-be formed of .:materials of relatively greater: rigidity; than cardboardlsuch as, for example, sheet metal, or relatively rigid plastic sheets, wood and the like. In such forms of devices, separate hinges or hinge means may be employed instead of score lines. Also in the alternative and although not illustrated, spring means may be employed within the confines of the-hollow mandrel or formenfon normally retaining it in expanded rectangular form.

The modified form of the device illustrated by Fig. 8, is essentially that of the device illustrated in Fig. l with the exception that a foldable top panelisnot employed. Thus, this form of mandrel'iorr former: device is composed of a pair of opposedfacingnpanels 21--2'i, having hinged between their opposed side edges the collapsible and outwardly. foldable panels 28-48, the panels 28' being each hinged to the facing panels 2'! at the-.hingezlines 29 and being each medially outwardly foldable and collapsible on a line 36.

The supporting base for this formof mandrel may suitably be a container box generally indi--.- cated as 3|, which may originally serve as a packagewfor. the supporting. mandrel, aplurality of liner bags 2! and. a-plurality of knockdowncontainers 23, for convenience in packing and to enable, ifdesired, the sale inunit formof cartons, liners therefor and a mandrel for. shaping the liners'and lining the cartons therewith for-home use.

One face of the container 31 is provided with an upwardly opening rectangular recess 32 conforming to the outer dimension of the expanded mandrel, so as to embrace and maintain the lower end .portion thereof in. supported vand expanded position- As partially. indicated, this'rectangular opening 32 may be formed by tabs 33 defined by slits and score lines in a surface of the container 3|. To provide supplemental support and expansion maintenance means for the lower end portion of the mandrel, an additional tab 34provided with upwardly Opening slots 35 may be struck up from the bottom of the carton 3 l. The lower edgesof the opposed mandrel faces 2l may be formed with downwardly opening slots- 36 for interlocking slotted engagement with the tab-.34.

In thisform. of construction, and in view of the absence of the foldable top, which top in the form of Fig. 1 forms a stop for downward movement of the liner bag 2|, the form of mandrel in Fig; 8 is preferably formed in a length-such that it extends above the upper surface of thesup-porting. base or container 3| a distance somewhat less than the length of the liner bag 2!, so as to form a stop, as best illustrated in Fig. 10. Here the mandrel is shown to be manually collapsed by grasping-of the opposed faces 2?, bringing their upper-edge portions into substantial meeting "engagement for ease ofinsertion within the open end of the liner bag 2 F After the bag-is inserted as indicated; theiacing panels 2? are releasedand-the opposedcollapsible: panels 28 pressed inwardly and thus expanded so as to bring the facing panels-ZT into substantially fully spaced parallel relationship to each other. After this the closed :end offthe linerbagmay be squaredup. against the'upper edges of the mandrel and-the"corners :knocked down'as-illustrated in'Fig. 5, and acontainer drawn thereover as in Figs; Sand 7.

Figs. 16 to 18 illustrate a further modified iorm of i construction which in operation isi substan tiallythat of :the. previously described'iforms; .but includesonly':a-..foldable.top'. For rco'nvenience this form has an integral supporting base which also holds the lower end portions of the facing panels in spaced relationship. Thus, this form of mandrel or former comprises a pair of opposed facing panels 31-31 having hinged to and between their upper edges the outwardly foldable and collapsible panel 38, panel 38 being hinged to the panels 31 at the hinge or score lines 3939, and is medially foldable and collapsible on its score line 40. Joined to and between the lower edges of the opposed facing panels 31 is the base panel 4 I.

In the alternative, and although not illustrated, it will be understood that in place of the supporting and joining base piece 4|, other base supporting means may be employed or devised so as to maintain the lower edge portions of the panels 31 in fixed spaced apart relationship when the upper end portions thereof are flexed and the top 38 collapsed for reception of a liner bag such as a bag 2|. For expansion the top 38 is pressed down in substantially the same manner as that described with respect to the form of Fig. 1.

As herein described and as previously indicated, it will be apparent to those skilled in the art that the present invention is susceptible of various modifications in detail without departing from the spirit thereof. I therefore do not wish the broader scope of my invention to be restricted except as limited by the following claims.

I claim as my invention:

1. A device for expanding and shaping an initially flat flexible liner bag to adapt the liner to enter and substantially conform to the interior surfaces of a relatively rigid container of rectangular form comprising a hollow rectangular former composed of relatively rigid but flexible material including a pair of rectangular facing panels in hinged engagement with a pair of outwardly collapsible side panels, and a supporting base formed with an upwardly open rectangular recess for reception of the lower end portion of said former and for thereby vertically supporting it.

2. A device for expanding and shaping an initially flat flexible liner bag to adapt the liner to enter and substantially conform to the interior surfaces of a relatively rigid container of rectangular form comprising a hollow rectangular former composed of relatively rigid but flexible material including a pair of rectangular facing panels in hinged engagement with a pair of outwardly collapsible side panels, and a supporting base formed with an upwardly open rectangular recess for reception of the lower end portion of said former and for maintaining it thereat in expanded transversely rectangular form, said supporting base including supplemental expansion support means for extension transversely of and in engagement with the lower edge portions of a pair of opposed former faces.

3. A device for expanding and shaping an initially flat flexible liner bag to adapt the liner to enter and substantially conform to the interior surfaces of a relatively rigid container of rectangular parallelepiped form, comprising a pair of opposed rectangular facing panels and medially foldable and outwardly collapsible panel means hinged edgewise to and between the facing panels at the opposed side adges thereof, said device upon expansion of said panel means defining a parallelepiped having the edges of one end forming the top thereof in a common plane and providing thereat a continuous rectangular abutment edge, and upon collapse of said panel means said end providing an entrance wedge for said liner bag, and separate supporting base means defining a rigid rectangle adapted for relative embracing engagement with the lower end portion of said device for normally maintaining it in expanded position while permitting the top end portion to be manually urged to wedge-like collapsed position for insertion within the open end of a liner bag.

EARL M. ROACH.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,532,316 Kaufman Apr. 7, 1925 1,722,276 Couch July 30, 1929 1,853,192 Benke Apr. 12, 1932 2,210,302 Petter Aug. 6, 1940 2,223,754 Waters Dec. 3, 1940 2,279,359 Waters Apr. 14, 1942 2,297,946 Doering Oct. 6, 1942 2,337,199 Holy Dec. 21, 1943 FOREIGN PATENTS Number Country Date 683,071 Germany Oct. 28, 1939

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