US3507439A - Preglued egg carton - Google Patents
Preglued egg carton Download PDFInfo
- Publication number
- US3507439A US3507439A US749435A US3507439DA US3507439A US 3507439 A US3507439 A US 3507439A US 749435 A US749435 A US 749435A US 3507439D A US3507439D A US 3507439DA US 3507439 A US3507439 A US 3507439A
- Authority
- US
- United States
- Prior art keywords
- carton
- panel
- panels
- flaps
- hinged
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS 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
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/30—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure
- B65D85/32—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure for eggs
- B65D85/325—Containers with compartments formed by erecting one blank
Definitions
- the carton has a bottom panel to support two rows of eggs. Side walls are hinged to the sides of the bottom. Separate top panels, hinged on the upper edge of each side wall meet centrally and have a plurality of cut-out flaps to be folded down to form transverse partitions. The meeting edges of the top panels each have a downfolded panel to form a composite, central partition. The upper areas of the central partition panels are secured together fiatwise and their lower portions are spread apart to assume an inverted V-shape. The lower edge portions of the partition panels are connected to the bottom on opposite sides of its longitudinal center line.
- the present invention relates to foldable preglued cartons which may be produced and stored in collapsed form and readily expanded for the reception of eggs or similar fragile articles.
- a further object is to provide new and improved locking means for the carton end-closure panels.
- FIGURE 1 is a plan view of an end portion of a suitable form of blank from which the carton may be made;
- FIGURE 2 is a partial perspective view showing the end-portion of the carton blank in partially folded condition
- FIGURE 3 is a partial perspective view, on a larger scale, the carton substantially in collapsed condition and ready for delivery to the point of use;
- FIGURES 4, 5 and 6 are partial perspective views, also on a larger scale, showing progressive stages in setting up the carton and locking the end closure panels in position;
- FIGURE 7 is a sectional view taken transversely through the set-up carton along a median line
- FIGURES 8 through 12 are perspective views of the end portions of modified forms of the carton having substantially the basic cross section of the carton shown in FIGURES l to 7, but with different locking means for the end panels;
- FIGURE 13 is a partial view of a blank relating to carton shown in FIGURE 12.
- the carton of the present invention is well adapted for use with a shrink-film overwrap as disclosed in the patent to R. T. Walter, No. 3,246,827.
- the carton blank may comprise an elongated central panel 1, forming the bottom; side wall panels 2 and 3 hinged to the bottom panel along fold lines 4- and 5; top panels, indicated generally at 6 and 7, joined to the outer edge portions of the side panels along interrupted fold lines 8 and 9; and center partition panels, indicated generally at 10 and 11, which are joined to the outer edges of the top panels along interrupted fold lines 12 and 13.
- the bottom panel of the blank has a center longitudinal fold line 1a dividing the panel into two equal sections 1b and 10. As shown in FIGURE 7, the bottom panel in the set-up condition of the carton, is folded convexly upward in the form of a shallow, inverted V. The bottom sections 1b and 10 will thus support the eggs above the level of the lower edges of side walls 2 and 3.
- the bottom panel is die-cut to provide a doublepurpose tab element, preferably for each cell of the carton.
- the tab elements on one side of fold line 1a are each indicated as a whole at 14 and on the other side at 15.
- the two groups of tab elements are preferably identical, but reversely positioned.
- tab element 15 as best shown in FIGURES 3 and 7, it is formed with a foot section 15:: and an upper section 15b, which may be termed an attaching section, to be explained presently.
- it is left swingably supported on two aligned median hinge lines 150, 15c.
- the lower end of the foot section 15a is generally aligned with the lower edges of the side walls thus tending to keep the bottom panel in the position shown in FIGURE 7.
- the center partition panels 10 and 11 are identical but reversely formed. Each panel may be considered as being formed in two sections. Sections 10a and 11a adjacent the respective interrupted fold lines 12 and 13 are arranged to be glued together. The remaining portions of the panels 10 and 11 are formed with a plurality of separate sections, indicated respectively at 10b, 10b and 11b, 11b, hinged respectively along lines and 110.
- the sections 10b, 10b and 11b, 11b are preferably separated by pairs of closely spaced slits 10d, 10d and 11d, 11d, and the material between such slits may be displaced from the planes of the sections to permit the edges of the sections 10b and 11b to retain the transverse partitions in a manner presently to be described.
- the sections 10b and 11b are formed with narrower extended portions 10e and 11e, respectively, that are arranged to be secured flat against the respective upper attaching sections 14b and 15b of the tab elements 14 and 15. See FIGURES 2 and 7.
- the carton blanks may be assembled on well known gluing equipment.
- the blank may be advanced in a direction aligned lengthwise of the panels and glue may be applied first to the upper surfaces of extended portions 10e, 10s and 112, He. This may be done by a simple glue roll and needs no timing, as the portions extend outwardly beyond the remainder of the blank.
- glue has been applied to the portions 10c and 112, the advancing blank is folded over along fold lines 8 and 9*, as shown in FIG- URE 2, which will bring the extended portions 102, 10e down upon the respective upper parts 14b, 14b of tab elements 14, and, the extended portions 1142, He down upon portions 15b, 15b.
- top panels 6 and 7 may be identical except for the flaps or panels at their ends which form the end closure elements. These will be described below. Re ferring particularly to FIGURES l and 5, it is apparent that, except for the end closure elements at the ends of the blank, the major portions of top panels 6 and 7 are employed to provide the transverse partitions indicated at 16, 16 and 17, 17. These partitions are of generally rectangular shape, except that their outer free corners are cut diagonally to leave small triangular supporting portions. The endmost triangular portions, indicated at 6a, 6b and 7a, 7b respectively, are employed to support end closure flaps to be described. The next two sets of triangular portions of each half-section of the top panel are employed to provide hinging support for the first and second sets of partitions 16, 16 and 17, 17. These are shown at 6c, 6d and 7c, 7d. The supporting means for the third set of partitions is not shown herein. Such partitions may be supported in the same manner as the first two sets, if desired.
- hinged sections are formed from the material of the side walls 2 and 3. As best shown in FIG- URES 1, and 6, a triangular section 1611 is hinged directly to the lateral outside edge of partition 16 and a second triangular section 16b is hinged on one side to the section 16a and on the other side to the body of side wall panel 2. Equivalent sections 17a and 17b join the lateral outside edge of partition 17 to the body of side Wall panel 3. For greater ease in swinging the partitions into place a major portion of the hinge lines on each side of the section 16b and section 17b may be perforated.
- the end closure construction comprises two principal panels or flaps 20 and 21, hinged respectively on the triangular parts 6a, 6b and 7a, 7b; and additional flaps 22 and 23 hinged respectively to the ends of side wall panels 2 and 3.
- the flaps 20 and 22 are connected by a gusset fold portion 20a; and the flaps 21 and 23 are connected by a gusset fold portion 21a.
- Each gusset fold is formed with two converging lines of perforations.
- the flap 21 has an extension 21b arranged to be folded beneath flap 21, or against the inside surface of flap 21 in its fully closed position.
- flaps 20 and 21 cooperate with an extended, composite hook element, indicated at 25, which is formed by gluing together the hook shaped ends 25a and 25b of the portions 10a and 11a of panels 10 and 11.
- the flaps 22 and 23 are first swung to closed position, after which the hinged extension 21b is folded against flap 21 and such flap is folded down so that its edge will bear frictionally on the lateral surface of the hook element 25.
- the flap 20 may then be swung down.
- the narrow hinged tab 200 will bear frictionally on the opposite lateral surface of the hook 25 and the rigid tab 20b will snap past the end of hook 25 and will be held in place thereby.
- the extended end of the rigid tab will overlie the outer edge portion of the downfolded flap 21 and assist in retaining this flap in closed position.
- the carton is then ready to be overwrapped with a shrink-film wrapping or other suitable wrapper.
- portions 31 and 32 that are secured to upwardly folded attaching flaps 33 and 34 formed at the ends of the bottom panel.
- Downwardly foldable end wall flaps 35 and 36 are formed with short, rigid locking tabs on their adjacent lower corners. One of these tabs is shown at 38. The rigid tabs are arranged to be snapped into narrow openings formed in the respective flaring panel sections.
- Vertically hinged closure flaps 39 and 40 similar to flaps 22 and 23, are formed 'with extended portions 41 and 42 near their respective free, lower corners.
- Each portion 41 and 42 has an upwardly projecting tab, indicated at 43 and 44, to form an upwardly facing notch between each tab and the vertical edge of the closure flap that conforms to the apex formed by the slope of the bottom panel and each angularly related section 33 and 34.
- the flaps 39 and 40 When the end of the carton is to be closed, the flaps 39 and 40 will first be swung to closed position.
- the portions of the flaps which form the notches may be made to conform closely to the angle of the attaching flaps and bottom panel with a frictional fit. However, if desired, a small notch may be cut at the apex formed by the meeting edge of the attaching flap and bottom panel to receive and retain the edge of the closure flap.
- closure flaps 39 and 40 are swung to closed position the flaps 35 and 36 are swung down and secured in place as described above.
- the carton is then ready to be wrapped.
- the flaring lower portions 50 and 51 of the center partition members extend downward sufficiently so that their ends will meet the bottom panel.
- Hinged fiaps 52 and 53 on the lower ends of the partition members are folded laterally and secured fiatwise to the bottom panel.
- the downwardly swingable flaps 60 and 61 are arranged to have their lower adjacent corners received into narrow slots formed in the flaring panel portions '62 and 63.
- the vertically hinged closure flaps 64 and 65 at their lower free corners have rigid tab extensions 6'6 and 67 which, when the flaps are closed, engage with a snap action behind rigid tabs 68 and 69 formed in the ends of the bottom panel.
- the vertically hinged flaps 64 and 65 are first closed, after which the flaps 60 and 61 are swung down against the outside surfaces of flaps 64 and 65 to retain their upper end portions.
- FIGURES 12 and 13 shows a partially erected carton and a blank from "which the carton is to be formed, respectively.
- the construction here is similar to that shown in FIGURES 1-6 except that locking is accomplished by inserting tabs 20c and 210 through openings 22c and 23c, respectively.
- FIGURE 12 illustrates tab 20c before locking, while tab 21c is shown in locked position.
- top panels carried by the side walls and extending inward to meet centrally of the carton and each forming one-half of a composite top panel
- one of the downwardly swingable flaps having on its inner edge a short, rigid tab arranged to move past the lower end of the hook element with a snap action and to be retained thereby, said rigid tab I being also adapted to overlap the edge of the adjacent flap and retain it in closed position.
- one of the downwardly swingable flaps has a narrow hinged tab on its inner edge arranged to bear frictionally against the latter surface of the hook element.
- top panels hinged to the upper edges of the side panels and arranged to meet centrally of the carton and each forming one-half of a composite top panel;
- top panels being die-cut to provide a plurality of hinged, downwardly swingable, transverse partition panels, to form cell walls for individual eggs;
- said bottom panel being formed with a plurality of upwardly extending, longitudinally spaced, at-
- top panels being die-cut to provide a plurality of hinged, downwardly swingable, transverse partition panels. to form cell walls for individual eggs;
- said bottom panel being formed with a plurality of longitudinally spaced, die-cut tab elements integrally hinged along median lines to swing to a generally vertical position, whereby each provides a downwardly extending attaching portion for attachment to the depending lower ends of the individual partition elements.
- top panels hinged to the upper edges of the side panels and arranged to meet centrally of the carton and each forming one-half of a composite top panel;
- top panels being die-cut to provide a plurality of hinged, downwardly swingable, transverse partition panels, to form cell walls for individual eggs;
- top panels being die-cut to provide a plurality of hinged, downwardly swingable, trans- References Cited verse partition panels, to form cell walls for UNITED STATES PATENTS individual eggs; 15 (d) an elongated panel member hinged on each of the 1913441 6/1933 Guyer' meeting edges of the top panel and extending, clown- 2382202 8/1945 Buttery 73 W the to form i center DAVID M. BOCKENEK, Primary Examiner tition, said center partition members bemg arranged to be secured together in a limited area adjacent their 20 connections with the top panels, and having their 9 lower portions free to flare away from each other to form inner cell walls; and
Description
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US74943568A | 1968-08-01 | 1968-08-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3507439A true US3507439A (en) | 1970-04-21 |
Family
ID=25013751
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US749435A Expired - Lifetime US3507439A (en) | 1968-08-01 | 1968-08-01 | Preglued egg carton |
Country Status (1)
Country | Link |
---|---|
US (1) | US3507439A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4179061A (en) * | 1978-10-05 | 1979-12-18 | Westvaco Corporation | Partitioned container |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1913441A (en) * | 1929-06-24 | 1933-06-13 | Waldorf Paper Prod Co | Egg carton |
US2382202A (en) * | 1942-06-27 | 1945-08-14 | Sutherland Paper Co | Collapsible cellular carton |
-
1968
- 1968-08-01 US US749435A patent/US3507439A/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1913441A (en) * | 1929-06-24 | 1933-06-13 | Waldorf Paper Prod Co | Egg carton |
US2382202A (en) * | 1942-06-27 | 1945-08-14 | Sutherland Paper Co | Collapsible cellular carton |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4179061A (en) * | 1978-10-05 | 1979-12-18 | Westvaco Corporation | Partitioned container |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: NATIONAL WESTMINSTER BANK PLC Free format text: SECURITY INTEREST;ASSIGNOR:CONTAINER CORPORATION OF AMERICA;REEL/FRAME:004858/0656 Effective date: 19860930 Owner name: MANUFACTURERS HANOVER TRUST COMPANY Free format text: SECURITY INTEREST;ASSIGNOR:CONTAINER CORPORATION OF AMERICA;REEL/FRAME:004858/0656 Effective date: 19860930 Owner name: BANKERS TRUST COMPANY, 280 PARK AVENUE, NEW YORK, Free format text: SECURITY INTEREST;ASSIGNOR:CONTAINER CORPORATION OF AMERICA;REEL/FRAME:004858/0656 Effective date: 19860930 Owner name: BANK OF NOVA SCOTIA, THE Free format text: SECURITY INTEREST;ASSIGNOR:CONTAINER CORPORATION OF AMERICA;REEL/FRAME:004858/0656 Effective date: 19860930 Owner name: CHEMICAL BANK Free format text: SECURITY INTEREST;ASSIGNOR:CONTAINER CORPORATION OF AMERICA;REEL/FRAME:004858/0656 Effective date: 19860930 |