US2857090A - Container for heavy articles - Google Patents

Description

Oct- 21, 1958 c. D. FAgLERT 2,857,090

coNTANER Foa HEAVY ARTicLEs 2 sheets-sheet 1 Filed June 2, 1955 y wrm/vir Oct. 21, 1958 c. D. FALLER-r CONTAINERv EOE HEAVY ARTICLES 2 Sheets-Sheet 2 Filed June 2. 1955 FIGB lilllllllllll, lllltllll, Il,

allllnfilllll Il!!! CONTAINER FOR HEAVY ARTICLES Clifford D. Fallert, St. Louis, Mo., assigner, by mesne assignments, to Crown Zellerbach Corporation, San Francisco, Calif., a corporation of Nevada Application .lune 2, 1955, Serial No. 512,615

1 Claim. (Cl. 229-36) This invention appertains, in general, to containers constructed of breboard, paperboard or other suitable, bendable materials and, in particular, to containers formed of solid fibreboard or corrugated breboard. It is often desired to package, for shipment, relatively heavy, dense articles, such as welding rods, wire and other similar material. It is often important, especially with materials such as Welding rods, which are coated with substances which are likely to chip or flake if improperly handled, to provide an inexpensive container which adequately protects the contents from the impacts of the normal rough handling during shipment. An obvious expedient would be to provide separate interior reinforcingmembers designed to protect the contents. Another expedient would be to provide a unitary container structure of complicated design which the user is required to expend considerable time to glue, fold and erect. Therefore, it is an object of this invention to provide a reinforced container of the type described which has prefolded and preglued portions Which automatically extend into end Wall reinforcing position as the container is erected by the user. Another object of this invention is to provide a container of the type described wherein the end wall members are reinforced With up to five thicknesses of material to provide a shock absorbing, reinforcing structure to protect the contents. Y

A still further object is to provide a container having corner reinforcing extensions integrally connected to the end walls of the container and having rebent portions which may be pre-secured together to form a 2-ply end wall strengthening portion.

The accompanying drawings form a part of this speciiication and like numerals and symbols herein appearing refer to like parts wherever they occur.

Fig. l is a plan View of a blank embodying a preferred form of the invention; y

Fig. 2 is aperspective View of the blank illustrated in Fig. 1 wherein certain of the end wall reinforcing members are shown glued together;

Fig. 3 is a View of the blank shown and illustrated in Fig. l shown in a partial form of erection;

Fig. 4 is a view of the blank shown in Fig. 1 shown in a still further stage of erection;

Fig. 5 is a view of a completed container erected from the blank shown in Fig. 1;

Fig. 6 is a horizontal, sectional view taken along lines 6-6 of Fig. 5;

Fig. 7 is a vertical, sectional View taken along lines 7--7 of Fig. 5;

Fig. 8 is a vertical, sectional view taken along lines 8 8 of Fig. 5;

Fig. 9 is a horizontal, fragmentary, sectional view taken along lines 9-9 of Fig. 4; and

Fig. 10 is a horizontal, fragmentary, sectional View taken along lines 10-10 of Fig. 3.

A blank A, shown in Fig. l, embodies a preferred form of the invention and is provided with a bottom panel 11 delined by parallel bottom side scores 12 and parallel States. Patent G bottom end scores 13. Longitudinal side wall panels 14 are foldably connected to the bottom panel 11 along the bottom side scores 12. Continuations ofthe bottom end scores 13 dene the end margins of the side wall panels 14. v

Top side scores 15 dene the top margins of the side wall panels 14. A relatively short top ap 16 is foldably connected to one ofthe side wall panels 14 along the adjacent side Wall score 15. The top ap 16 in the embodiment` illustrated is substantially narrower in width than the width of the bottom panel 11, however, the width dimensions of the top ap 16 may be varied if desired. The side Wall panel 14, disposed opposite the side wall panel 14, which carries the top flap 16, is provided with a full width top panel 17 foldably connected thereto along its top side score 15. VIn the particular embodiment illustrated, the top panel 17 is preferably equal in width to the bottom panel 11. Continuations of the bottom end scores 13 define the ends of the top panel 17 and the inner margins of foldably connected outer end aps 18. End wall panels 19 are foldably connected to the bottom panels 11 along the bottom end scores 13. A parallel pair of double top scores 20 define the top margins of the end wall panels 19 and the inner margins of foldably connected end Wall reinforcing panels 21.

' The side wall panels 14 are provided with corner panels scores 23 are formed by slitting or cutting intermittent portions of the end margin of the corner panels 22 as illustrated, however, other forms of scoring, such as creasing, may be satisfactorily employed.

Corner reinforcing panels 24 are foldably connected to the corner panels 22 along the cut scores 23. CornerI scores 25 dene the outer edge ofthe corner reinforcing panels and the inner edge ofside-wall reinforcing panels 26. The distance between the cut scores 23 and the corner scores 25 will be, in the embodiment illustrated, slightly less than the distance between the cut score 23 and the adjacent extension of the bottomrend score 13. In this manner, the length of the corner reinforcing panels 24 is preferably slightly less than the' corner panels 22. The reason of .this preferred length relationship will be fully described later in the description of the'erected container.

In the particular container blankI illustrated, the actual freeedge .of the side Wall reinforcing panel 26 is substantially co-linear with the outer free edgeqof the-ad'-A jacent end wall reinforcing panel 21. In this manner, the most effective utilization of the material is assured,

however, the length of the side wall reinforcing panely 26 r may be varied if desired.

A preferred method of forming the container from the .blank Ais to apply adhesive 27 to they inner face of the vcorner :panels 22 as shown in Figs. -1 and 2; The corner'1 reinforcing panels 24 and the side wall reinforcing panels 26 are then folded upwardly and inwardly about the cut scores 23 so that each corner reinforcing panel 24 is securely and adhesively fixed to its adjacent corner panel 22. If desired, of course, the adjacent panels 22 and 24 may be xed together by means of stitches or any other suitable securing means.

After the corner panels 22 and 24 are secured together as above described, each side wall reinforcing panel 26 will be disposed in flatwise, contacting relation to its adjacent side wall panel 14 as shown in Fig. 2. The corner panels 22 and 24 are ordinarily glued together by the manufacturer of the container blank prior to shipment to the user of the container.

The user of the container may erect the preglued blank Patented Oct. 21, 1958 i 3 in any suitable manner, however, a preferred means is to fold the side wall panels 14 vertically upwardly about the bottom side scores 12 into right angular relationship with the bottom panel 11'. j

Each ofjthe glued together corner panels 22 and 24 are folded right angularly inwardly about their adjacent extension ,of the bottom end sc ore 13. In this position, it will be apparent that the side wall reinforcing panels willbein iirm'contactingrelation with the inner face of the adjacent portions of the side wall panel 14. With thepanels 22 and 24, folded in this position, the end wall panels '19 are .folded upwardly about their bottom end scores 13,r into vertical atwise relation against the previously positioned adjacent corner panels 22. AThe end wall reinforcing panels 21 are then folded inwardly and vertiCall-ydownwa'rdly over theA corner reinforcing panels 24. In the. embodiment illustrated, the free outer edge 28 of the end wallreinforcing panels 21 are in firm contacting relationship with .theuplper face of the -bottom panel 11. In this manner, the `frictional engagement assists in maintaining the end-,wall reinforcing panel in vertical position.

The container may then be loaded. To seal the container, the top iiap 16 is folded horizontally inwardly about. its adjacent top side score as shown in Fig. 4. The top panel 17 is then folded horizontally inwardly in overlapping relation with the 4previously positioned ,top ap 16. The 'outer end flaps I8 may then be folded vertically downward in contacting relation with the outer face of the end wall panels 19 and then fixed .in place by adhesive, stitching, or other suitable means. For example, it may be desired to secure the top panel 17 and the outer end flaps 18 into position 'by girding means, such as steel strap, wire,.tape or the like.

The containerr thus provided, and illustrated in completed form yin Fig. S, affords a substantially dust-proof reinforced package for carrying heavy, dense articles. The reinforced corner portions. and end wall portions are proof against failure during transit. As shown in Figs. 6 and-7,a multiple thickness reinforcing and cushioning end wall strnctureis provided, with up to iive layers of material being utilized. Also, as readily apparent from Fig., 9, there are provided reinforced corner. structures which are formed by, two continuous plies `of material thereby affording `at least twice the strength found in ordinary containers of this generaltype.

Furthermore, the reinforced. corner structures and side and end wall structures provide unusual vertical strength which permits containersemploying this invention thereby stacked one -upon another.

Not Aonly are .the end walls of the container substantiallyreinforcedbut the side .wall structure is reinforced by the use 4 of the side wall reinforcing panels 2 6.

cIn the embodiment illustrated, it is important to note that the side wall reinforcing panels 26 are not adhesively secured to the adjacent inner faces of the side wall panels 14 since as the glued together corner panels 22 and 24 arefolded about the extension of the bottom end score 13 into position,.the side wall reinforcing panel 26 will actually slide along the inner face of the adjacent side wall panel 14. Also, as readily apparent from an examination of Figs. 9 and 10, corner panel 22 is of greater length than corner reinforcing panel 24 by an amount at least equal to the thickness of the material from which the container is constructed.

It is to be understood that the embodiments herein described are illustrative and not restrictive, and it is also to be understood that the invention may be susceptible of embodiment in other modified forms, and that all such 'A modifications which are similar or equivalent hereto come equally within the scope of the claim next appearing.

What I claim is:

A unitary container having a bottom with foldably connected, upstanding side and end walls, and a bottom, a isubstantially similar side wall, corner and end wall reinforcing extension foldably connected to each end of each side wall at substantially a right angle thereto and with the extensions from one side wall extending fori ward and in alignment with` the extensions from the other side wall, each extension including reversely folded over similar permanently secured together overlapping portions forming part of an end wall structure and a further similar extension at a right angle thereto in free engagement with an adjacent inside portion of the side wall, the overall dimension of all extensions being substantially the same andthe height of all the extensions being substantially the height of the side walls but of lesser length than th'eside walls, inner and outer end wall panels foldably connected together and integral with the bottom, with the inner panels extended over the said inside of each folded over end wall structure and with the outer panels extending over and in engagement with the outside of Y each folded over wall structure thus resulting in four-ply end walls, one upstanding side wall having a flat ledge of the outer end wall panels.

zontally inwardly over and with a portion thereof in flatwise contacting relationship throughout its length with said ledge, said top closure flap having end marginal edges in alignment with said container end walls and having similar outer end flaps disposed downward and secured in flatwise reinforcing relation to' respective outer faces References Cited in the tile of this patent UNITED STATES PATENTS 1,936,136 Lindgren Nov. 21, 1933 1,981,836 Greve Nov. 20, 1934 2,367,008 Davidson J an. 9, 1945 2,450,035 De Mian Sept. 28, 1948 2,572,239 Bergstein Oct. 23, 1951 FOREIGN PATENTS 4,698 Great Britain 1907

Images