US2454573A - Folding box - Google Patents

Folding box Download PDF

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Publication number
US2454573A
US2454573A US608729A US60872945A US2454573A US 2454573 A US2454573 A US 2454573A US 608729 A US608729 A US 608729A US 60872945 A US60872945 A US 60872945A US 2454573 A US2454573 A US 2454573A
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United States
Prior art keywords
fold line
box
container
blank
walls
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Expired - Lifetime
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US608729A
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Scher Joseph
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Individual
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Individual
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Publication of US2454573A publication Critical patent/US2454573A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42Details of containers or of foldable or erectable container blanks
    • B65D5/44Integral, inserted or attached portions forming internal or external fittings
    • B65D5/441Reinforcements
    • B65D5/443Integral reinforcements, e.g. folds, flaps
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S229/00Envelopes, wrappers, and paperboard boxes
    • Y10S229/915Stacking feature
    • Y10S229/919Reinforced wall

Definitions

  • This invention relates to folding containers, land has for its principal object the provision of an improved box of reinforced construction which is simple and inexpensive to construct, which may be shipped flat, and which may be set up in a minimum period of time.
  • the folding box of the present invention has particular application in the shipping of foods, particularly frozen foods including fruits, vegetables and meats, wherein a container having insulating value, as well as one having very con'- siderable strength to allow of stacking. of a considerable number of boxes, one upon the other,
  • the single blank includes interlocking top closure flaps as well as the bottom wall, multiple end walls of very considerable compressive strength, and reinforced side walls.
  • the latter are of unique construction in that they provide a relatively narrow reinforcing band at each end of .the box which not only reinforces the container vertically and laterally, but also provides means for spacing the container from the containers on each side as well as above and below such container. In addition to preventing crushing of the contents, these bands form an air space between containers over'a major portion of the wall surfaces. All parts of the assembled container are so interlocked as to cause each vertical wall portion to cooperate with the other wall portion to make the box a true load carrying container.
  • the multiple end wall construction is also unique, not only in that it provides a high order of compressive strength, but also in the interlocking arrangement and self-locking corner construction.
  • the box of the present invention affords a high order of protection for the contents, and cushions the articles, preventing breakage and other damage. Compared with an ordinary box of single wall construction, the box of the present invention is truly load carrying. The blank for the box, however, requires only a minor amount of extra material overwhat is required for single wall construction.
  • Fig. 1 is a perspective view of a container forming an embodiment of the present invention.
  • Fig. 2 is similar to'Fig. 1, but shows the container with the closure aps in open position.
  • v 3 is a perspective view showing the blankv 'which is used in forming the container in partiallyassembled condition.
  • Fig. 4 isa broken perspective ⁇ view showing the closure flaps in partially interlocked position.
  • Fig. ,5 is a broken horizontal section taken on line 5-5 of Fig. 4.
  • Fig. 6 is a, transverse section taken on line I- .of Fig. 1.
  • Fig. 7 is a broken vertical section ltaken on line 1-1 of Fig. 2.
  • Fig. 8 is a plan view of the blank used in forming .the container.
  • the blank I0 which is illustrated in plan view ,the blank, and by spaced, transverse fold lines i3 which extend the width of the blank.
  • Adjacent the fold lines I2 are side wall portions i4 defined by fold lines i2 and by longitudinal fold lines i! which likewise extend the full length of the blank
  • Adjacent the side wall portions i4 are closure fiaps 20 on one side of the container, and 2l on the other side thereof.
  • C'losure flap 20 has attached thereto an extension 22 formed along longitudinal fold line 23.
  • is of substantially the same shape as closure flap 20 plus extension flap 22, but need not havelongitudinal fold line 23, fold line 23 being formed to facilitate interlocking of the closure aps.
  • the portion of closure flap 2i corresponding to extension flap 22 is somewhat longer than flap 22, as shown at 24 in Fig. 8.
  • a reinforcing band extends completely around the container whenv in closed position at each end of such closed container.
  • This band indicated generally by the reference numeral 25, is formed of two strips 2B and 21 vextending transversely of the blank, the latter being slightly wider than the former for a reason which will be pointed out, strip 26 being defined by transverse fold line i3 and a transverse fold line 28.
  • Strip 21 is defined by transverse fold line 28 and another fold line 29, both of which extend the full width of the blank.
  • Outer end wall 32 is carried along the central portion of strip 21 and is defined at its upper end by fold line 33. If the container is made from relatively heavy corrugated board, it will be desirable to form cut-out portions 34 on each side of outer end walls 32. Adjacent the outer edge of outer end wall 32 is a short strip 35 defined by fold line 33 and a fold line 33, and adjacent the latter fold line is inner end wall portion 31.
  • ls formed along fold line 29, and carried along fold line I9 to the right of ap 4I is another intermediate end wall 42.
  • intermediate end wall 43 is carried along fold line 29, and flap 44 forming another intermediate end wall is carried by flap 43. Inasmuch as flaps 43 and 44 enclose flaps 4
  • strips 21 are first folded inwardly along fold line 3 so that they overlie the outer surfaces of portions II, I4, 20 and 2
  • transverse strip 21 is wider than transverse strip 23, there is a space (see Figs. 3 and 4) between fold line I3 and the inner surface of outer side wall 32.
  • the width of this space should be equal to the combined thickness of end walls 4I, 42, 43, 44 and 31.
  • closure 'flaps may be moved in closed position as follows.
  • is moved downwardly to the position shown in Fig. 1, and closure flap 22 then moved downwardly. 'Ihe opposed terminals of extension flap 22 are then moved into the recesses formed between closure flap 2
  • a folding box including a base, inner and outer end walls, intermediate end walls, side walls. upper walls forming closure ilaps, and integrallyformed ⁇ reinforcing bands extending around the box at each end thereof, the box being formed from a single blank of sheet material having a plurality of intersecting fold lines defining such base and walls, the inner and outer end walls being disposed longitudinally of the base, the intermediate end walls being disposed longitudinally of the side walls, and the remaining walls being disposed laterally thereof and being defined at opposite ends thereof by a pair of spaced, transverse fold lines, each reinforcing band comprising a pair of adjacent strips of unequal width separated by a fold line and lying transversely of the blank between one of said transverse fold lines and adjacent the end wall portions the outer strip of eachpair being wider than the inner strip, which strips are folded back in overlapping relation on the outer surface of the box, and forming an external fold line extending around the box at a point spaced from the end thereof, and an internal fold line extending around the box between the external

Description

J. SCHER FOLDING BOX Nw. 23, 194s.
4 Sheets-Sheet 2 Filed Aug. 3, 1945 Z5 x INVENTOR. lst-PH SCHH? a? l 'J- SCHER FOLDING BOX Nov. 23, 1948.
4 Shee'ts-Sheet 3 Filed Aug. 3, 1945 Patented Nov. 1948 4UNITED STATES PATENT' orrica This invention relates to folding containers, land has for its principal object the provision of an improved box of reinforced construction which is simple and inexpensive to construct, which may be shipped flat, and which may be set up in a minimum period of time.
The folding box of the present invention has particular application in the shipping of foods, particularly frozen foods including fruits, vegetables and meats, wherein a container having insulating value, as well as one having very con'- siderable strength to allow of stacking. of a considerable number of boxes, one upon the other,
is desired. The box of the present invention,
which, of course, will have many uses other than for the packing and shipping of frozen foods, is desirably formed from a single blank of material which is die-cut to shape and the lines of fold preferably formed at the same time.
The single blank includes interlocking top closure flaps as well as the bottom wall, multiple end walls of very considerable compressive strength, and reinforced side walls. The latter are of unique construction in that they provide a relatively narrow reinforcing band at each end of .the box which not only reinforces the container vertically and laterally, but also provides means for spacing the container from the containers on each side as well as above and below such container. In addition to preventing crushing of the contents, these bands form an air space between containers over'a major portion of the wall surfaces. All parts of the assembled container are so interlocked as to cause each vertical wall portion to cooperate with the other wall portion to make the box a true load carrying container. The multiple end wall construction is also unique, not only in that it provides a high order of compressive strength, but also in the interlocking arrangement and self-locking corner construction.
The box of the present invention affords a high order of protection for the contents, and cushions the articles, preventing breakage and other damage. Compared with an ordinary box of single wall construction, the box of the present invention is truly load carrying. The blank for the box, however, requires only a minor amount of extra material overwhat is required for single wall construction.
y In the drawings:
Fig. 1 is a perspective view of a container forming an embodiment of the present invention.
Fig. 2 is similar to'Fig. 1, but shows the container with the closure aps in open position.
Vlo
1 claim. (ci. 22a-34) v 3 is a perspective view showing the blankv 'which is used in forming the container in partiallyassembled condition.
Fig. 4 isa broken perspective `view showing the closure flaps in partially interlocked position.
Fig. ,5 is a broken horizontal section taken on line 5-5 of Fig. 4.
Fig. 6 is a, transverse section taken on line I- .of Fig. 1.
Fig. 7 is a broken vertical section ltaken on line 1-1 of Fig. 2.
Fig. 8 is a plan view of the blank used in forming .the container.
The blank I0, which is illustrated in plan view ,the blank, and by spaced, transverse fold lines i3 which extend the width of the blank. Adjacent the fold lines I2 are side wall portions i4 defined by fold lines i2 and by longitudinal fold lines i! which likewise extend the full length of the blank Adjacent the side wall portions i4 are closure fiaps 20 on one side of the container, and 2l on the other side thereof. C'losure flap 20 has attached thereto an extension 22 formed along longitudinal fold line 23. Closure flap 2| is of substantially the same shape as closure flap 20 plus extension flap 22, but need not havelongitudinal fold line 23, fold line 23 being formed to facilitate interlocking of the closure aps. The portion of closure flap 2i corresponding to extension flap 22 is somewhat longer than flap 22, as shown at 24 in Fig. 8.
It was earlier pointed out that a reinforcing band extends completely around the container whenv in closed position at each end of such closed container. This band, indicated generally by the reference numeral 25, is formed of two strips 2B and 21 vextending transversely of the blank, the latter being slightly wider than the former for a reason which will be pointed out, strip 26 being defined by transverse fold line i3 and a transverse fold line 28. Strip 21 is defined by transverse fold line 28 and another fold line 29, both of which extend the full width of the blank.
Outer end wall 32 is carried along the central portion of strip 21 and is defined at its upper end by fold line 33. If the container is made from relatively heavy corrugated board, it will be desirable to form cut-out portions 34 on each side of outer end walls 32. Adjacent the outer edge of outer end wall 32 is a short strip 35 defined by fold line 33 and a fold line 33, and adjacent the latter fold line is inner end wall portion 31. On the right-hand side of the blank, when viewed as in Fig. 8, an intermediate end wall 4| ls formed along fold line 29, and carried along fold line I9 to the right of ap 4I is another intermediate end wall 42. On the opposite side of the blank, intermediate end wall 43 is carried along fold line 29, and flap 44 forming another intermediate end wall is carried by flap 43. Inasmuch as flaps 43 and 44 enclose flaps 4| and 42, a, central portion 45 is formed between flaps 43 and 44, such portion being defined by fold line I9 and a fold line 43.
To assemble the container from the fiat blank of Fig. 8, strips 21 are first folded inwardly along fold line 3 so that they overlie the outer surfaces of portions II, I4, 20 and 2|. Strips 21 are then folded outwardly along fold lines 23 so that they occupy the position shown in Fig. 3.l Bide walls I4 are next folded upwardly along fold lines I2. Next, outer end wall 32 is folded upwardly, and ilap 42 is folded downwardly over flap 4|. Flaps 4| and 42 are then moved inwardly, and next ilap 44 is folded over flap 43 and the two are moved inwardly in closing folded flaps 4| and 42. Inner end wall 31 is next folded downwardly over flaps 4|, 42, 43 and 44. This operation is repeated at the opposite end of the box, and the box is now assembled for packing. It will be noted that because of the fact that transverse strip 21 is wider than transverse strip 23, there is a space (see Figs. 3 and 4) between fold line I3 and the inner surface of outer side wall 32. The width of this space should be equal to the combined thickness of end walls 4I, 42, 43, 44 and 31. Thus, when the latter end wall is moved downwardly into place, it is received and secured within the recess adjacent edge I3.
When the packing is completed, the closure 'flaps may be moved in closed position as follows.
Closure flap 2| is moved downwardly to the position shown in Fig. 1, and closure flap 22 then moved downwardly. 'Ihe opposed terminals of extension flap 22 are then moved into the recesses formed between closure flap 2| and strips 23 forming part of bands 25. 'Ihis operation is facilitated by longitudinal fold line 23.
The box oi' the presentinventionis illustrated in the drawings as being formed with unapertured walls. In many instances, however, it will be desired to provide ventilation for the contents, and in such instances one or more ofthe walls may be formed with suitable openings.
While one form or embodiment of the invention has been shown and describedvherein for illustrative purposes, and the construction and arrangement incidental to a specific application thereof have been disclosed and discussed in detail, it is to be understood that the invention is limited neither to the mere details or relative arrangement of parts, nor to its specific embodiment shown herein, but that extensive deviations from the illustrated form or embodiment of the invention may be made without departing from the principles thereof.
What I claim is:
A folding box including a base, inner and outer end walls, intermediate end walls, side walls. upper walls forming closure ilaps, and integrallyformed `reinforcing bands extending around the box at each end thereof, the box being formed from a single blank of sheet material having a plurality of intersecting fold lines defining such base and walls, the inner and outer end walls being disposed longitudinally of the base, the intermediate end walls being disposed longitudinally of the side walls, and the remaining walls being disposed laterally thereof and being defined at opposite ends thereof by a pair of spaced, transverse fold lines, each reinforcing band comprising a pair of adjacent strips of unequal width separated by a fold line and lying transversely of the blank between one of said transverse fold lines and adjacent the end wall portions the outer strip of eachpair being wider than the inner strip, which strips are folded back in overlapping relation on the outer surface of the box, and forming an external fold line extending around the box at a point spaced from the end thereof, and an internal fold line extending around the box between the external fold line and such end, the internal fold line providing an internal abutment which is engaged by the inner end wall for retaining the latter in position,
JOSEPH SCHER.
REFERENCES CITED The following references are of record in the ille of this patent:
UNITED STATES PATENTS
US608729A 1945-08-03 1945-08-03 Folding box Expired - Lifetime US2454573A (en)

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US608729A US2454573A (en) 1945-08-03 1945-08-03 Folding box

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2811298A (en) * 1955-04-29 1957-10-29 Container Corp Box of foldable sheet material
US3756499A (en) * 1972-03-09 1973-09-04 Union Camp Corp Box with five panel ends
US3784082A (en) * 1971-10-29 1974-01-08 Ex Cell O Corp Non-returnable container case
US4821880A (en) * 1987-07-27 1989-04-18 Essex Group, Inc. Palletized structure containing spools
US5102037A (en) * 1991-08-14 1992-04-07 Bryan Robert M Stackable package capable of division
US5353984A (en) * 1993-10-13 1994-10-11 Liu Yuan Hsin Foldable paper board for forming a container
US5447270A (en) * 1994-01-07 1995-09-05 Westvaco Corporation Laminations for improved container compressive strength
US10974865B2 (en) 2019-09-05 2021-04-13 Walmart Apollo, Llc Containers with foldable carrying handles and method for preparing same for transportation

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US770946A (en) * 1903-01-26 1904-09-27 Chicago Folding Box Company Box.
GB190509617A (en) * 1905-05-08 1906-03-22 Tom Miller Cundell Improvements in Folding or Collapsable Cardboard Boxes
US1146115A (en) * 1914-02-17 1915-07-13 Joseph W Weiss Collapsible box.
US2163117A (en) * 1934-11-03 1939-06-20 California Container Corp Tray
US2196502A (en) * 1939-02-15 1940-04-09 Container Corp Container

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US770946A (en) * 1903-01-26 1904-09-27 Chicago Folding Box Company Box.
GB190509617A (en) * 1905-05-08 1906-03-22 Tom Miller Cundell Improvements in Folding or Collapsable Cardboard Boxes
US1146115A (en) * 1914-02-17 1915-07-13 Joseph W Weiss Collapsible box.
US2163117A (en) * 1934-11-03 1939-06-20 California Container Corp Tray
US2196502A (en) * 1939-02-15 1940-04-09 Container Corp Container

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2811298A (en) * 1955-04-29 1957-10-29 Container Corp Box of foldable sheet material
US3784082A (en) * 1971-10-29 1974-01-08 Ex Cell O Corp Non-returnable container case
US3756499A (en) * 1972-03-09 1973-09-04 Union Camp Corp Box with five panel ends
US4821880A (en) * 1987-07-27 1989-04-18 Essex Group, Inc. Palletized structure containing spools
US5102037A (en) * 1991-08-14 1992-04-07 Bryan Robert M Stackable package capable of division
US5353984A (en) * 1993-10-13 1994-10-11 Liu Yuan Hsin Foldable paper board for forming a container
US5447270A (en) * 1994-01-07 1995-09-05 Westvaco Corporation Laminations for improved container compressive strength
US10974865B2 (en) 2019-09-05 2021-04-13 Walmart Apollo, Llc Containers with foldable carrying handles and method for preparing same for transportation

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