US3261537A - Self locking container - Google Patents

Self locking container Download PDF

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Publication number
US3261537A
US3261537A US324329A US32432963A US3261537A US 3261537 A US3261537 A US 3261537A US 324329 A US324329 A US 324329A US 32432963 A US32432963 A US 32432963A US 3261537 A US3261537 A US 3261537A
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United States
Prior art keywords
panel
top panel
interconnected
tabs
pair
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Expired - Lifetime
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US324329A
Inventor
Oscar J Kistner
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Mead Corp
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Mead Corp
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Priority to US324329A priority Critical patent/US3261537A/en
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    • 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
    • B65D5/00—Rigid 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
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/64—Lids
    • B65D5/66—Hinged lids
    • B65D5/6626—Hinged lids formed by folding extensions of a side panel of a container body formed by erecting a "cross-like" blank
    • B65D5/665—Hinged lids formed by folding extensions of a side panel of a container body formed by erecting a "cross-like" blank the lid being held in closed position by self-locking integral flaps or tabs

Definitions

  • the pr'esent invention relates to a novel self-locking container.
  • a container particularly adapted for the shipment of individual books or like objects.
  • the device is formed of a single blank and, when folded, is provided with a pair of integrally formed end buffer members each in turn provided with a stabilizing tab.
  • the principal featur'e of the invention is a novel lock which consists of a forwardly extending flap engageable in .a slot in the upper face of the container and a pair of rearwardly extending flap-s engageable in a pair of slots likewise formed in the upper face of the container.
  • This novel locking structure acts to prevent recollapsing of the container or accidental disengagement of the same.
  • Another object of the invention is to provide, in a device of the character set forth, a novel locking structure including one forwardly and two rearwardly extending lock flaps, the flaps each being engageable in separate slots in the container structure.
  • Still another object of the invention is to provide, in a device of the character set forth, novel integrally formed end butler members forming a part of the invention.
  • a still further object of the invention is to provide, in a device of the character set forth, novel stabilizing tabs forming a part of the invention.
  • FIGURE 1 is a plan view of a blank utilized in forming the container of the present invention
  • FIGURE 2 is an end elevational view of the device shown in FIGURE 1 illustrating the same in partially folded condition;
  • FIGURE 3 is a perspective view of the device shown in a still further state of its assembly
  • FIGURE 4 is a perspective view illustrating a still further step in the assembly of the container
  • FIGURE 5 is a perspective view showing the device partially closed
  • FIGURE 6 is a sectional view taken along line 66 of FIGURE 7;
  • FIGURE 7 is a perspective view showing the device in fully closed condition.
  • top panel 10 to each side of which is connected along fold lines 11, 12, 13 and 14, successive panels 15, 16, 17 and 18.
  • a stabilizing tab 20 To the inner edge of each of the panels 17 there is connected along a fold line 19 a stabilizing tab 20.
  • Panels 15, 16, 17 and 18 are adapted to be folded in- Wardly each at right angles to the next so that panel 18 will come to rest upon the adjacent surface of panel 10, as illustrated in FIGURE 2, thus forming buffer members generally designated at 21.
  • buffer members 21 When buffer members 21 are so asembled, it will be seen that stabilizing tabs 20 will extend inwardly from each end of panel 10 and at right angles thereto.
  • Panel 10 is rectangular in shape and is provided substantially centrally with a longitudinally extending slot 30 and, in spaced parallel relation thereto, a pair of linearly aligned slots 31.
  • a body 32 having outwardly directed inwardly converging sides 33 terminating in a forwardly directed lock tab 35 connected along a fold line 36 to a flap body 37.
  • Body 37 is connected by a pair of fold lines 38 to the main body 32 and fold lines 38 are interconnected by a substantially U-shaped slit 39 into which extends a pair of rearwardly extending lock tabs 40 which are integrally formed with body 37.
  • Each of the tabs 40 is provided with a fold line 41 adjacent its free edge.
  • buffer members 21 are first assembled as above described whereupon a book or other object to be packed in said container is placed upon panel 10 between buffer members 21 and against the stabilizing tabs 20 as indicated in dotted lines at 42 in FIGURE 6. End panel 23 is then bent vertically b'ehind stabilizing tabs 20 and bottom panel 25 is then bent over buffer members 21 whereupon the entire assembly is turned upside down as shown in FIGURE 4 and end panel 27 then bent vertically and lock structure 29 bent inwardly and lock tab 35 inserted into slot 30 while at the same time the lock tabs 40 are inserted into slots 31.
  • lock tabs 35 and 40 will first impinge against the book or other object 42 and thus be guided to a susbtantially flat position beneath cover 20, all as'indicated in FIGURES 5 and 7.
  • Fold lines 41 see FIGURE 1, act to assist in guiding the end portions of lock tabs 40 into slots 31 during this operation.
  • the end buffer members 21 are maintained in position by the stabilizing tabs 20 since the book or other object 42 will bear against tabs 20 and like the tabs 20, being of the same width as the width of adjacent panel 23 are prevented from turning and hence will act to maintain buffer members 21 in position at all times.
  • a devic'e of the character described comprising a top panel, a first side panel, a bottom panel, and a second side panel successively interconnected by fold lines to one edge of said top panel, buffer members formed integrally with each side of said top panel, a locking structure interconnected by a fold line to said second side panel, said locking structure including a body portion connected to a flap body by a pair of spaced fold lines interconnected by a substantially U-shaped slit in said body portion for receiving a pair of spaced apart rearwardly extending lock tabs integrally formed with said flap body and symmetrically disposed relative to the central axis of a forwardly extending lock tab connected by a fold line to said flap body, and means for readily det-achably securing said lock tabs to said top panel including slots formed therein and registering with each of said lock tabs.
  • a device of the character described comprising a top panel, a first side panel, a bottom pan'el, and a second side panel successively interconnected by fold lines to one edge of said top panel, buffer members formed integrally with each side of said top panel, a stabilizing flap formed integrally with each of said buffer members and extending inwardly adjacent the inner face of said first side panel, a locking structure interconnected by a fold line to said second side panel, and means for engaging said locking structure with said top panel, said locking structure including a body portion connected to a flap body by a pair of spaced fold lines interconnected by a substantially U-shaped slit in said body portion for receiving a pair of spaced apart rearwardly extending lock tabs integrally formed with said flap body and symmetrically disposed relative to the central axis of a forwardly extending lock tab connected by a fold line to said flap body, and means for readily detachably securing said lock tabs to said top panel including slots formed therein and registering with each of said lock tabs.

Description

July 19, 1966 o. J. KISTNER 3,261,537
SELF LOCKING CONTAINER Filed Nov. 18, 1963 3 Sheets-Sheet 2 INVENTOR Osur J. Kwmer ATTORNEY July 19, 1966 o. J. KISTNER 3,261,537
SELF LOCKING CONTAINER Filed Nov. 18, 1963 3 Sheets-Sheet 5 INVENTCR Oscar J. Kis'lner' ATTORNEY United States Patent 3,261,537 SELF LOCKING CONTAINER Oscar J. Kistner, Cincinnati, Ohio, assignor to The Mead Corporation, Dayton, Ohio, a corporation of Ohio Filed Nov. 18, 1963, Ser. No. 324,329 4 Claims. (Cl. 229-.40)
The pr'esent invention relates to a novel self-locking container.
Generally, there is provided a container particularly adapted for the shipment of individual books or like objects. The device is formed of a single blank and, when folded, is provided with a pair of integrally formed end buffer members each in turn provided with a stabilizing tab. The principal featur'e of the invention is a novel lock which consists of a forwardly extending flap engageable in .a slot in the upper face of the container and a pair of rearwardly extending flap-s engageable in a pair of slots likewise formed in the upper face of the container. This novel locking structure acts to prevent recollapsing of the container or accidental disengagement of the same.
It is accordingly an object of the invention to provide a novel self locking container which is simple in construction, inexpensive to manufacture and yet effective and efficient in use.
Another object of the invention is to provide, in a device of the character set forth, a novel locking structure including one forwardly and two rearwardly extending lock flaps, the flaps each being engageable in separate slots in the container structure.
Still another object of the invention is to provide, in a device of the character set forth, novel integrally formed end butler members forming a part of the invention.
A still further object of the invention is to provide, in a device of the character set forth, novel stabilizing tabs forming a part of the invention.
Other and further objects of the invention will become apparent from a reading of the following specification taken in conjunction with the drawings, in which:
FIGURE 1 is a plan view of a blank utilized in forming the container of the present invention;
FIGURE 2 is an end elevational view of the device shown in FIGURE 1 illustrating the same in partially folded condition;
FIGURE 3 is a perspective view of the device shown in a still further state of its assembly;
FIGURE 4 is a perspective view illustrating a still further step in the assembly of the container;
FIGURE 5 is a perspective view showing the device partially closed;
FIGURE 6 is a sectional view taken along line 66 of FIGURE 7; and,
FIGURE 7 is a perspective view showing the device in fully closed condition.
Referring to the drawings, there is shown therein a top panel 10 to each side of which is connected along fold lines 11, 12, 13 and 14, successive panels 15, 16, 17 and 18. To the inner edge of each of the panels 17 there is connected along a fold line 19 a stabilizing tab 20.
Panels 15, 16, 17 and 18 are adapted to be folded in- Wardly each at right angles to the next so that panel 18 will come to rest upon the adjacent surface of panel 10, as illustrated in FIGURE 2, thus forming buffer members generally designated at 21. When buffer members 21 are so asembled, it will be seen that stabilizing tabs 20 will extend inwardly from each end of panel 10 and at right angles thereto.
To the inner edge of panel 10 there is connected 3,261,537 Patented July 19, 1966 along a fold line 22 a side panel 23 which is, in turn, connected by a fold line 24 with a bottom panel 25 which is, in'turn, connected by a fold line 26 to a side panel 27 which, in turn, is' connected along a fold line 28 to a locking structure gen'erally designated at 29.
Panel 10, it will be seen, is rectangular in shape and is provided substantially centrally with a longitudinally extending slot 30 and, in spaced parallel relation thereto, a pair of linearly aligned slots 31.
Referring to locking structure 29, it will be seen that there is provided a body 32 having outwardly directed inwardly converging sides 33 terminating in a forwardly directed lock tab 35 connected along a fold line 36 to a flap body 37. Body 37 is connected by a pair of fold lines 38 to the main body 32 and fold lines 38 are interconnected by a substantially U-shaped slit 39 into which extends a pair of rearwardly extending lock tabs 40 which are integrally formed with body 37. Each of the tabs 40 is provided with a fold line 41 adjacent its free edge.
In operation, buffer members 21 are first assembled as above described whereupon a book or other object to be packed in said container is placed upon panel 10 between buffer members 21 and against the stabilizing tabs 20 as indicated in dotted lines at 42 in FIGURE 6. End panel 23 is then bent vertically b'ehind stabilizing tabs 20 and bottom panel 25 is then bent over buffer members 21 whereupon the entire assembly is turned upside down as shown in FIGURE 4 and end panel 27 then bent vertically and lock structure 29 bent inwardly and lock tab 35 inserted into slot 30 while at the same time the lock tabs 40 are inserted into slots 31. It will be seen that lock tabs 35 and 40 will first impinge against the book or other object 42 and thus be guided to a susbtantially flat position beneath cover 20, all as'indicated in FIGURES 5 and 7. Fold lines 41, see FIGURE 1, act to assist in guiding the end portions of lock tabs 40 into slots 31 during this operation. It will also be apparent that in the assembled device, the end buffer members 21 are maintained in position by the stabilizing tabs 20 since the book or other object 42 will bear against tabs 20 and like the tabs 20, being of the same width as the width of adjacent panel 23 are prevented from turning and hence will act to maintain buffer members 21 in position at all times.
While but one form of the invention has been shown and described herein, it will be readily apparent to those skilled in the art that many minor modifications may be made without departing from the spirit of the invention or the scope of the appended claims.
What is claimed is:
1. A devic'e of the character described comprising a top panel, a first side panel, a bottom panel, and a second side panel successively interconnected by fold lines to one edge of said top panel, buffer members formed integrally with each side of said top panel, a locking structure interconnected by a fold line to said second side panel, said locking structure including a body portion connected to a flap body by a pair of spaced fold lines interconnected by a substantially U-shaped slit in said body portion for receiving a pair of spaced apart rearwardly extending lock tabs integrally formed with said flap body and symmetrically disposed relative to the central axis of a forwardly extending lock tab connected by a fold line to said flap body, and means for readily det-achably securing said lock tabs to said top panel including slots formed therein and registering with each of said lock tabs.
2. A device of the character described comprising a top panel, a first side panel, a bottom pan'el, and a second side panel successively interconnected by fold lines to one edge of said top panel, buffer members formed integrally with each side of said top panel, a stabilizing flap formed integrally with each of said buffer members and extending inwardly adjacent the inner face of said first side panel, a locking structure interconnected by a fold line to said second side panel, and means for engaging said locking structure with said top panel, said locking structure including a body portion connected to a flap body by a pair of spaced fold lines interconnected by a substantially U-shaped slit in said body portion for receiving a pair of spaced apart rearwardly extending lock tabs integrally formed with said flap body and symmetrically disposed relative to the central axis of a forwardly extending lock tab connected by a fold line to said flap body, and means for readily detachably securing said lock tabs to said top panel including slots formed therein and registering with each of said lock tabs.
3. A device as defined in claim 2 wherein a fold tab is connected to each of said rearwardly directed tabs by a score lin'e adjacent the free edge thereof.
References Cited by the Examiner UNITED STATES PATENTS 681,68'5 9/1901 Dominguez 229-16 1,448,864 3/1923 Pinkerton 229-16 2,132,957 10/1938 Mahone 229-16 2,275,134 3/1942 Davidson 229-51 2,684,758 7/1954 Aquino 229-40 2,990,997 7/ 1961 Weiss 229-40 3,125,279 3/1964 Watts et a1. 229-40 3,194,476 6/1965 Weiss 229-40 JOSEPH R. LECLAIR, Primary Examiner.
FRANKLIN T. GARRETT, Examiner.
J. F. MCNULTY, D. T. MOORHEAD,
Assistant Examiners.

Claims (1)

1. A DEVICE OF THE CHARACTER DESCRIBED COMPRISING A TOP PANEL, A FIRST SIDE PANEL, A BOTTOM PANEL, AND A SECOND SIDE PANEL SUCCESSIVELY INTERCONNECTED BY FOLD LINES TO ONE EDGE OF SAID TOP PANEL, BIFFER MEMBERS FORMED INTEGRALLY WITH EACH SIDE OF SAID TOP PANEL, A LOCKING STRUCTURE INTERCONNECTED BY A FOLD LINE TO SAID SECOND SIDE PANEL, SAID LOCKING STRUCTURE INCLUDING A BODY PORTION CONNECTED TO A FLAP BODY BY A PAIR OF SPACED FOLD LINES INTERCONNECTED BY A SUSBTANTIALLY U-SHAPED SLIT IN SAID BODY PORTION FOR RECEIVING A PAIR OF SPACED APART REARWARDLY EXTENDING LOCK TABS INTEGRALLY FORMED WITH SAID FLAP BODY AND SYMMETRICALLY DISPOSED RELATIVE TO THE CENTRAL AXIS OF A FORWARDLY EXTENDING LOCK TAB CONNECTED BY A FOLD LINE TO SAID FLAP BODY, AND MEANS FOR READILY DETACHABLY SECURING SAID LOCK TABS TO SAID TOP PANEL INCLUDING SLOTS FORMED THEREIN AND REGISTERING WITH EACH OF SAID LOCK TABS.
US324329A 1963-11-18 1963-11-18 Self locking container Expired - Lifetime US3261537A (en)

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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3332730A (en) * 1965-10-24 1967-07-25 Valtronic Corp Storage unit
US3368735A (en) * 1966-09-06 1968-02-13 Hans L. Levi Five panel folder with cushion ends
US3383028A (en) * 1966-06-20 1968-05-14 Owens Illinois Inc Fiberboard carton
US3516593A (en) * 1968-03-14 1970-06-23 Donnelley & Sons Co Protective container for books and the like
US3524580A (en) * 1968-12-23 1970-08-18 Corning Glass Works Self-locking package with recessed end portions
US3705681A (en) * 1970-07-01 1972-12-12 Continental Can Co Carton with article-centering means
US4016973A (en) * 1975-10-06 1977-04-12 Blake Richard E Plastic holder for safety matches
US4140218A (en) * 1977-03-31 1979-02-20 Consolidated Packaging Corporation Wrap for polygonal prism shaped articles
US4552268A (en) * 1984-01-20 1985-11-12 Federal Paper Board Co., Inc. Light-tight carton for X-ray and other light sensitive film
US4607786A (en) * 1985-03-18 1986-08-26 Waldorf Corporation Double insert lock carton and blank therefor
US5123589A (en) * 1991-04-03 1992-06-23 Waldorf Corporation Reusable rigid film pack
US5522504A (en) * 1995-03-01 1996-06-04 Baldwin Technology Corporation Box construction having spring engagement
US5740958A (en) * 1997-03-04 1998-04-21 Dopaco, Inc. Beverage carton
JP2011105333A (en) * 2009-11-16 2011-06-02 Kirin Brewery Co Ltd Packaging box
US20110186452A1 (en) * 2010-02-02 2011-08-04 Schroeder Richard M Box apparatus and packaging methods
DE102011009151A1 (en) * 2011-01-22 2012-07-26 Edgar Weissbacher Blank for outer package utilized for packing object e.g. chocolate bar, has tab portion comprising portion working as barb, which is locked such that tab portion is unlocked to open package under destruction from aperture of cover portion
AT12978U1 (en) * 2010-04-23 2013-03-15 Storck August Kg PACKAGING PRODUCTS
CN113453989A (en) * 2019-02-18 2021-09-28 卡普萨包装有限公司 Transport box and method of use

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US681685A (en) * 1901-05-16 1901-09-03 Manuel F Dominguez Cigar-box.
US1448864A (en) * 1921-07-14 1923-03-20 Edward E Pinkerton Folding box
US2132957A (en) * 1937-10-14 1938-10-11 Central Carton Company Carton
US2275134A (en) * 1937-12-07 1942-03-03 Nat Biscuit Co Carton
US2684758A (en) * 1952-10-08 1954-07-27 Hinde & Dauch Paper Co Paperboard shipping carton for individual articles such as scissors
US2990997A (en) * 1958-07-15 1961-07-04 Continental Can Co Paperboard carrier
US3125279A (en) * 1964-03-17 Cardboard and like cartons
US3194476A (en) * 1960-12-14 1965-07-13 Continental Can Co Wrap-around paperboard carrier

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125279A (en) * 1964-03-17 Cardboard and like cartons
US681685A (en) * 1901-05-16 1901-09-03 Manuel F Dominguez Cigar-box.
US1448864A (en) * 1921-07-14 1923-03-20 Edward E Pinkerton Folding box
US2132957A (en) * 1937-10-14 1938-10-11 Central Carton Company Carton
US2275134A (en) * 1937-12-07 1942-03-03 Nat Biscuit Co Carton
US2684758A (en) * 1952-10-08 1954-07-27 Hinde & Dauch Paper Co Paperboard shipping carton for individual articles such as scissors
US2990997A (en) * 1958-07-15 1961-07-04 Continental Can Co Paperboard carrier
US3194476A (en) * 1960-12-14 1965-07-13 Continental Can Co Wrap-around paperboard carrier

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3332730A (en) * 1965-10-24 1967-07-25 Valtronic Corp Storage unit
US3383028A (en) * 1966-06-20 1968-05-14 Owens Illinois Inc Fiberboard carton
US3368735A (en) * 1966-09-06 1968-02-13 Hans L. Levi Five panel folder with cushion ends
US3516593A (en) * 1968-03-14 1970-06-23 Donnelley & Sons Co Protective container for books and the like
US3524580A (en) * 1968-12-23 1970-08-18 Corning Glass Works Self-locking package with recessed end portions
US3705681A (en) * 1970-07-01 1972-12-12 Continental Can Co Carton with article-centering means
US4016973A (en) * 1975-10-06 1977-04-12 Blake Richard E Plastic holder for safety matches
US4140218A (en) * 1977-03-31 1979-02-20 Consolidated Packaging Corporation Wrap for polygonal prism shaped articles
US4552268A (en) * 1984-01-20 1985-11-12 Federal Paper Board Co., Inc. Light-tight carton for X-ray and other light sensitive film
US4607786A (en) * 1985-03-18 1986-08-26 Waldorf Corporation Double insert lock carton and blank therefor
US5123589A (en) * 1991-04-03 1992-06-23 Waldorf Corporation Reusable rigid film pack
US5522504A (en) * 1995-03-01 1996-06-04 Baldwin Technology Corporation Box construction having spring engagement
US5740958A (en) * 1997-03-04 1998-04-21 Dopaco, Inc. Beverage carton
JP2011105333A (en) * 2009-11-16 2011-06-02 Kirin Brewery Co Ltd Packaging box
US20110186452A1 (en) * 2010-02-02 2011-08-04 Schroeder Richard M Box apparatus and packaging methods
US8800760B2 (en) * 2010-02-02 2014-08-12 Richard M. Schroeder Box apparatus and packaging methods
AT12978U1 (en) * 2010-04-23 2013-03-15 Storck August Kg PACKAGING PRODUCTS
DE102011009151A1 (en) * 2011-01-22 2012-07-26 Edgar Weissbacher Blank for outer package utilized for packing object e.g. chocolate bar, has tab portion comprising portion working as barb, which is locked such that tab portion is unlocked to open package under destruction from aperture of cover portion
CN113453989A (en) * 2019-02-18 2021-09-28 卡普萨包装有限公司 Transport box and method of use

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