US 2459939 A
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Description (OCR text may contain errors)
' Filed July 8, 1946 Jan. 25, 1949. HlLL ETA-L 2,459,939
CONTAINER 2 Sheets-Sheet l ATTORNEY afitg' '3 v IN TORS /7; dm a v /7 M av J 5; .I. HILL ETAL CONTAINER Filed July 8, 1946 2 Sheets-Sheet 2 flig- 4.
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Patented Jan. 25, 1949 comma Irving Hill and'Justin D. Hill, Lawrence, Kans., assignors to The Lawrence Paper Company, Lawrence, Kans., a corporation of Kansas Application July 8, 1946, Serial No. 681,998
2 Claims. 1
. together; to provide a container which may be .lmocked down for transporting in substantially flat condition so that a greater number of the empty cases may be transported by truck or the like and which will require smaller space for storage; to provide a container with a cover integral with the body of the container; to provide fastening means on the end flaps of the container which may be quickly released toknock down the container for shipping or storage; to provide means on the end flaps of the sides of the container for locking the end flaps together; and to provide a device of this character simple, economical to manufacture and efficient in operation.
In accomplishing these and other objects of the present invention, we have provided improved details of structure, the preferred form of which is illustrated in the accompanying drawings, wherein:
Fig. 1 is a perspective view of a container embodying the features of our invention showing the cover sealed thereon.
Fig. 2 is a perspective elevation of one end of the container showing the end flaps in disassem- 1 bled relation.
Fig. 3 is a perspective elevation of one end of the container showing the locking flap being inserted through the hand hold in the end of the container and parts being broken away to illustrate the locking of the end flap.
Fig. 4 is a cross section of the container particularly illustrating the locking means on the bottom end flap in locking position with the outer side flap.
Fig. 5 is a cross section of the container particularly illustrating the means for locking the end and side flaps on the container.
Fig. 6 is a vertical cross section of'one end of the container showing the side and end flaps in locking position.
Referring more in detail to the drawings:
l designates a container embodying the features of our invention comprising a bottom 2, sides- 3 and 4, 'ends 5 and 8 and a cover I. The sides, bottom, ends and cover of the container are preferably formed from a continuous sheet of fiber 2 material, although we do not wish to be limited to such material as other materials may be adapted for our purpose.
When adapted for containing eggs, our container is preferably formed of rectangular shape and the ends 5 and 5 are formed by flaps 8 and 9 which are formed as a continuation of the sides 3 and d and adapted to be folded inwardly over each other, forming a double thickness for the end of the container. A flap iii preferably of substantially triangular shape is formed as a continuation and extending from the bottom 2 of the container and is adapted to be folded over the end flaps 8 and 9 as illustrated in Figs. 1 and 3. The triangular-shaped flap ill has a substantially T-shaped head M connected therewith by a fold line 82. The head H is provided with transverse fold lines !3 and it so that tabs or flaps l5 and it formed by the T-shaped head may be folded over each other as illustrated in Fig. 3 and adapted to be extended through openings H and it in the end flaps 8 and 9 respectively. When the flaps B and 9 are folded together the openings I! and M will align with each other to form a hand hold it in the respective ends of the contained. After the folded head is projected through the opening ll inthe outer end flap 8, the tabs i5 and I6 are unfolded to form a key and lock the outer end flap 8 to the triangular-shaped bottom flap l0 as best illustrated in Fig. 4.
The inner end flap 9 is provided at substantially the center of the upper edge thereof with a locking tab 20 which is formed by an extension on the end flap 9. The tab is provided at the edge of the end flap 9 with a fold line 2| and spaced from the respective ends of the tab are fold lines 22 and 23, the fold line 22 being double to accommodate for the thickness of the end flaps. When the end flap 9 is in the end forming relation with the flap 8 the tab 20 is preferably turned inwardly and extended through the hand hold opening l9 and then upwardly along the outer side of the end flap 8 and the end 24 of the tab is extended through a horizontal opening 25 above the hand hold and near the upper edge of the end flap 8 to lock the end flaps together and hold the side wall end flaps and bottom end flaps in closed relation. The top edge of the end flap 9 is slit on each side of the tab 20 to a depth equal to the fold line 2i so that the tab will be flush with the edge of the flap when in locking position as indicated at 252' It will here be noted that the tab 20 when inserted through the hand hold furnishes a smooth surface for the hand. hold instead of the rough 3. edges of the container as is the usual practice. When the tab is in locking relation it will extend slightly through the slot 28 as best illustrated at 25 (Fig. Such end structure will form a very rigid container and particularly when shipping eggs the triple layer end will furnish a cushioning eflect for the containers when they are in endto-end relation. This is due to the locking head I on the triangular-shaped flap of the bottom of the container being inserted between the end flaps 5 and 9 as best illustrated at 21 (Fig; 6).
Flaps 25 and 29 are provided on the upper edges of the end flaps 8 and 9 and the sides 2 and 3 are provided with flaps 39 and 3| to form the cover 1 for the container. The end flaps 28 and 29 are provided with fold lines 32 and the side flaps 30 and at are provided with told lines 33 so that the top will lie flat for the cover. The end flaps 28 and 29 extend inwardly a suitable distance and the side flaps 30 and Si extend to substantially the center of the container. A strip of sealing tape 34% may be placed over the mating edges of the cover flaps 30 and 3| to hold the same in place and the ends thereof extended over the corner edge 35 of the box and engage extension tab 20 as indicated at 38 (Fig. 1) to seal the cover and hold-the extension tab in locking position, although this sealing of the tab is not necessary.
It will be obvious from the foregoing that we have provided an improved container particularly adapted for shipping eggs and when the eggs are unpacked the cases may be folded and knocked down to a flat condition and returned to the original packer for reuse or storage prior to reu se.
It will further be obvious that we have provided a container which inay be cut from a substantially rectangular sheet of material without waste of such material as the side and end flaps as well as the cover flaps are all of substantially mating length so that no oifset will be required from the stock sheet.
It will further be obvious that with our arrangemerit of locking of the end and bottom flaps, a smooth interior will be provided in the egg case except for the locking tab near the top of the end of the case as indicated at 26. However, there is sufiicient resiliency in the end of the container so that the cartons of eggs may be easily inserted in the container.
What we claim and desire to secure by Letters Patent is: v
1. A container including bottom and side walls, flaps on the ends of the bottom and side walls overlapping each other for forming end walls for 4 said container, said side wall flaps having registered hand hold openings and the outer of said side wall flaps having slots above the hand hold openings, locking means on said flaps of the bottom extending through said hand hold open- .ings on the outer of the side wall flaps and engaging between said side wall flaps, said side walls and the outer side wall flaps having closure flaps for forming a cover for said container, and integral tongues having fold lines on the upper edges of the inner of said side wall flaps above the hand hold openings adapted to extend through the hand holds and engaging in the slots for locking the end flaps together.
2. A container comprising, a body having bottom, side and end walls, said end walls being formed by flaps extending from the ends of the side walls and folded together forming a double thickness for the end walls and having hand holds therein, substantially triangular-shaped flaps extending from the bottom of the container adapted to fold upwardly over the end flaps of the side walls, a head on'said triangular-shaped flaps having fold lines extending outwardly from the side edges of the triangular-shaped flaps providing flaps adapted to fold over the head and be inserted through said hand holds on the outer end flaps of the side walls and adapted to lie between said end flaps, said side walls and outer end flaps having flaps provided with fold lines adapted to form a cover for said container, said outer end flaps of the side walls being provided with horizontal slots adjacent said fold lines, and
integral tabs on the inner end flaps adapted to engage in said hand holds and said slots for looking said end flaps together.
IRVING HILL. JUSTIN D. HILL.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Williams et al. Jan. 2, 1945