US2089345A - Box or carton - Google Patents

Description

Aug. 10,1937. N. F. DAVIS ET AL BOX OR CARTON Filed Aug. 20, 1935 ATTORNEY.

Patented Aug. 10, 1937 .c PATENT OFFICE Nathaniel The 'presentr invention: relates to the manufacture off boxes" orf'carton's' to: be used as temporary containers for-various forms of merchandiseduring' shipment. storage. and, sale.

The-temporary nature of the use to which a large class. of. boxes andcartons are put makes it undesirable to; use anything but the least expensive materials and methods in their manufacture: Howevenwherethegoods contained inthe boxes: are" of relatively heavyinature such as shoes; candy; or'stationery, for example, the box mustbe strong enough toremain unbroken in shipmentuand' handling inorder to protect the contents thereof, and where-the merchandise is intended for theqpersonal use of the purchaser, and: r'eachesihis hands in the original. container, the box must be presentable to the eye. 1 Theweakestpoints in the ordinary rectangular carton-or box made out of cardboard or other form: of paper and'familiarly used incommerce everywhere Jareits corners,;the meeting lines ofi-the-sides or the bottom with. the ends, these corners beingthe points in the box .at;-which breakage'first occurs in practically all=cases.where the massior' weight. of: the contents causes the failure of the carton in transit or handling, and in' the case oishoeboxes When-thesalesman removes the box'fromsa' stackaonthe shelf by in-, serting' hisi fingers insidethe,, box and pulling upon: me-ena-.-.- The-nextjweakest points, are ordi narily thezends themselves of the box or carton.

Theinvention aims. to strengthen these weak points of: such boxes. orcartons, and aims to do sorwithout increasing mat1eria1ly,.or even while reducing, theycosh of manufacture, at the same time producing; a container that presents a neat and finishediaspect to the eye of the purchaser.

' a-jToithese aims,.the-.inyention comprises'in; its

basic: aspect. a, cardboard box having, integral single thickness sides :and bottom, combined with ends which are made of a plurality ofthicknesses of; one: or more. preferably separate pieces, with them'aterial forming; the sides and bottom extended and. bentginto the planes of the ends and secured betweentwo of the thicknesses which form the. ends. In anampliijled form, the inner .one of the separate pieces forming the, ends is provided: with. tabs which are bent at rightangles and secured to the insidesurfaces of the bottom and sides, so that there is a double'thickness of material extending, along the three dihedral angles at each eno..,,,

Other objects of the invention, and the manner in which they areattained, are asset forth hereinafter. I

"along lines 3, and 5. The tabs 1 tensions of the bottom and sides of the box are F. Davis, Contoocook, and Clayton Straw, Henniker, N. H.

Application August'zo, 1935, Serial N0. 37,02

j lfl filai ms. (01329 23) Anillustrative embodiment of the invention is shown in the accompanying drawing in which,--

irrFlg. 1 shows in flat relation the several blanks or parts used in making one end of the improved box. 1

Fig. 2 showsin perspective the same parts in readiness for assembly. 1

-.Fig. 3 shows the finished box.

Fig. 4 shows in perspective the parts of a paper-covered box embodying the invention features. j

- Fig. 5 is a perspective view of one end of the finishedboxaccording to Fig. 4.

Fig. 6 is a. similar view of another alternative construction.

Fig. 7; is a similar view of another alternative construction which is shown in development in Fig.8.-

The material of the box may be any suitable or desiredflexible material having the necessary attributes. of similar construction. The main or body blank .I is; formedof this material in the needed or desired shape, and dimensions to form the bottom and two opposite sides of the box or carton, the 2 be'folde'd. inward at right-angles to the respectivenfaces L to which they are attached, along scoredi or'creased lines 9, right-angle Vs being cut ,outat H in usual manner in line with foldflin'es 3-, 5, to avoid overlapping of the tabs with each. other and permit their lying in a common plane when the box is folded up.

The end ofthe box is composed of two sepayr-ate-end-portions I3, I 5, comprising respectively the inner and the outer end portions. These may be made of stock of the same or different strength from: the main portion. While the outer endportion I5 of Figs. 1 to 3 is a rectangle of exactly the-size and shape to be had by the end of the .finished box, the inner end-portion I3 is of approximately this same'area plus the addition on its bottom and twoside edges of tabs IT, IS, laid off ,from the .end-portion proper by scored or are secured by gluing or otherwise respectively to the inside surfaces of the bottom 23 and the two.sides.25 formed as the blank I is bent up formed as ex- Preferably both ends of the box are d then bent inward into a common plane and similarly secured to the outer surface of the inner I end-portion I3, and the rectangular outer endportion I5 thereupon attached to the outward surfaces of these same tabs 1, hiding the latter and giving the end of the box a smooth and finished appearance. The space between the adjacent surfaces of the inner and outer end-portions I3 and I5, may be left empty to receive a ticket or tag, or a part thereof while the remainder of the tag is bent down over the outside of the end to remain exposed, or to receive a portion of the top or cover of the box, (not shown,) or may be pressed into contact and glued together. Or the three tabs 1 will be made of sufficient length to meet and butt together without overlapping, so that they will completely fill the space between the inner and outer end-portions I3, I5.

The marked advantage of this construction is that there are two thicknesses of the component cardboard, pasteboard, or other material at the three corners or edges, at the sides and bottom where the planes of the sides and bottom intersect the plane of the end, so that these vulnerable points are reenforced by being made of two'plies instead of one as usual hitherto. Additionally, the strain of resisting a blow delivered by the contents of the box in a direction to knock out the end of the box is exerted lengthwise of the surfaces of the inner end-portion I3 and of the main or body blank I which are attached to each other. Thisis an important gain wherever materials made of paper stock are used for making the box, as these materials are practically always of laminated construction, and in the widely used. former type of box comprising merely the outer end-portion I5 glued to the outward faces of the tabs I of blank I a blow from within against the end of the box frequently caused the surface layer of the glued-together area of the end-portion or the tabs to strip off and release the end, because a substantial portion of the force of the blow acts at right-angles to the surfaces involved in a direction to tear them apart. In the invention, however, the action of this component is reversed, because the inner end-portion I3 is inside of the tabs 1, while additionally the integral extensions formed by the tabs I 1 and I9 transmit the strain in the direction in which the material is strongest, namely along the surfaces involved.

Figs. 4 and 5 illustrate the general principles involved when it is desired to provide the box with a coating or finish of white or colored paper to improve its appearance. This outer coating is applied to the two side-portions 25 of the blank I in usual manner before bending the latter, being wrapped around what will be the top edges of the sides 25 as indicated at 21, and extending to 29 under the bottom. The outer end-portion I50 is prepared by pasting the covering I521 over its outer surface, with extensions of the covering beyond the top and bottom edges of this endportion. After the two end-portions are in place with the tabs 1 included between them, the top extension of the covering I52 is folded down within the box and pasted to the inward surface of inner end-portion I30, while the corresponding lower extension of covering I52 is pasted to the bottom of the box. As thus applied, the covering aids in compelling the outer end-portion to con- .form to the surface of the tabs 1 when the end of the box is bulged outwardly by a blow from within, thereby impeding the stripping of the material where the surfaces of the outer endportion and the tabs are glued together. The

tabs at same method of covering is of course applicable to all forms of the invention.

Fig. 6 shows an alternative construction differing from that of Fig. 1 only in that the inside and outside end-portions are formed in one piece and folded along the line 3I which forms the top edge of the end of the box when completed. Figs. '7 and 8 show an alternative construction related to Fig. 2, differing therefrom in that the plies forming the insideand outside end-portion are integral with the body of the box, being in effect anextension of the bottom of the box replacing the tab 1 on the bottom in Fig. 2. The extension is folded along the line 33 which eventually becomes the top edge of the end of the completed box, the tabs I9 being glued to the inside surfaces of the sides 25 as in the previously described forms of the invention, the tabs 1 being glued between the proximate surfaces of the inside endportion 35 and outside end -portion 31 after folding along the line 33, and the additional tabs 39, 4|, respectively on the sides and end of the ply forming the outside end-portion 31 being glued to the outside surfaces of the sides 25 and bottom 23 respectively. In this form, the side corners are of three-ply structure and the bottom corners of two-ply structure, giving a very high degree of strength. a r 3 An important feature and advantage of the improved construction is that in its several forms it lends itself with great facility to automatic manufacture on standard types of box-making machines with very slightadaptationsof the ma..- chines, since the entire box may be assembled into finished form during a' single cycle or operation, thereby making the box' cheap' and practicable to manufacture.

' While we have illustrated and describedcertain forms in which the inventionmay. be embodied, we are aware that many modifications may be made therein by any person skilled in the art, without departing from the scope of the invention as expressed in the claims. Therefore, we do not wish to be limited to the particular forms shown, or to the details of construction thereof, but

What we do claim is:

1.'A box made out of cardboard or. the like comprising in combinationa body-portion forming the bottom and two sides and also forming tabs at the extremities of at least two of the latter faces, an end-portion adhesively secured to the inward surfaces of the tabs after the latter have been bent inward into a common plane, and a second end-portion adhesively secured to the outward surfaces of such tabs when thus bent one of such end-portions having flanges bent at right angles and adhesively secured to such faces.

2. A box made out of cardboard or the like into a common plane, the end-portion itself having flanges bent at right-angles and adhesively secured to the sides of the body-portion, and a second end-portion adhesively secured to the outward surfaces of the tabs when thus bent.

3. A box made out of cardboard or the like comprising in combination a body-portion forming the bottom and two sides and also forming the extremities of thesefaces, an endportion adhesively secured .to the inward surfaces of the tabs after the latter have beenbent inward into a common plane, the end portion itself having flanges bent at right-angles and adhesively secured to the bottom and sides of the body-portion, and a second end-portion adhesively secured to the outward surfaces of the tabs when thus bent.

4. An open-top cardboard box having integral single-thickness sides and bottom and separate plural-thickness ends, with the material of the sides and bottom extended and bent into the planes of the ends and adhesively secured between two of the thicknesses of the ends, and the material of the inner end piece extended and bent into the planes of the sides and bottom and adhesively secured to the sides and bottom.

5. A box made out of cardboard or the like comprising in combination a body-portion forming the bottom and two sides and also forming tabs at the extremities of at least two of these faces, an end-portion adhesively secured to the inward surfaces of the tabs after the latter have been bent inward into a common plane, the endportion itself having flanges bent at right-angles and adhesively secured to the sides of the bodyportion, and a second end-portion integral with the first end-portion adhesively secured to the outward surfaces of the tabs when thus bent.

6. A box made out of cardboard or the like comprising a single blank cut and bent to form the bottom, two sides, and a two-ply end, the latter forming an integral extension of the bottom, the sides having tabs at their extremities, one ply of the end being secured to the inward surfaces of the tabs after the latter have been bent into a common plane, such ply having flanges bent at right-angles and secured to the box sides, and the other ply being secured to the outward surfaces of the tabs.

7. A box made out of cardboard or the like comprising a single blank cut and bent to form the bottom, two sides, and a two-ply end, the latter forming an integral extension of the bottom, the sides having tabs at their extremities, one ply of the end being secured to the inward surfaces of the tabs after the latter have been bent into a common plane, such ply having flanges bent at right-angles and secured to the box sides, and the other ply being secured to the outward surfaces of the tabs when bent as stated and also having flanges secured to the outside surfaces of the sides and bottom.

8. A box made out of cardboard or the like comprising in combination a body-portion forming the bottom and two sides and also forming tabs at the extremities of at least two of the latter faces, an inside end-portion and an outside endportion adhesively secured to the respective surfaces of such tabs after the latter have been bent into a common plane, with the material of one end-portion extended and bent around the angle formed between one of these faces and its tab and adhesively secured to such face to provide a two-ply structure at such angle.

9. A box made out of cardboard or the like comprising a single blank cut and bent to form the bottom, two sides, and a two-ply end, the latter forming an integral extension of the bottom, the sides having tabs at their extremities, one ply of the end being secured to the inward surfaces of the tabs after the latter have been bent into a common plane, and the other ply being secured to the outward surfaces of the tabs, at least one of such plies having flanges bent at right-angles and secured to the box sides.

10. A box made out of cardboard or the like comprising a single blank cut and bent to form the bottom, two sides, and a two-ply end, the latter forming an integral extension of the bottom, the sides having tabs at their extremities to which tabs at least one ply of the end is adhesively secured after the tabs have been bent into a common plane, at least one ply having flanges bent at right-angles and adhesively secured to the box sides beyond the tabs.

NATHANIEL F. DAVIS. CLAYTON STRAW.

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