US2586156A - Paperboard box cover lock - Google Patents

Paperboard box cover lock Download PDF

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Publication number
US2586156A
US2586156A US69791A US6979149A US2586156A US 2586156 A US2586156 A US 2586156A US 69791 A US69791 A US 69791A US 6979149 A US6979149 A US 6979149A US 2586156 A US2586156 A US 2586156A
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United States
Prior art keywords
cover
box
tongue
end wall
box cover
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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
Application number
US69791A
Inventor
Kenneth C Ferguson
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Inland Container Corp
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Inland Container Corp
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Publication date
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Priority to US69791A priority Critical patent/US2586156A/en
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Publication of US2586156A publication Critical patent/US2586156A/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
    • B65D5/6602—Hinged lids formed by folding one or more extensions hinged to the upper edge of a tubular container body
    • B65D5/6605—Hinged lids formed by folding one or more extensions hinged to the upper edge of a tubular container body the lid being formed by two mating halves joined to opposite edges of the container body

Definitions

  • This invention relates to a cover lock for a paper board box.
  • the chief object of this invention is to improve cover locks of paper board boxes so that such locks, despite re-use, retain their effectiveness throughout the life of the box.
  • beer cases'the boxes have a life of from to 25 round trips and in these instances, as well as others, it is the purpose of.
  • the invention to insure locking of the cover during, as stated, the life of the box.
  • Boxes generally are of corrugated board character but are not necessarily limited thereto because they may be of solid fibre type. Also boxes may be made up in various manners and that herein shown is illustrated and described merely by way of example.
  • the chief feature of the present invention resides in provision of complementary tongue and recessing locking associations which are peculiarly applicable to paper board boxes as hereinafter morevfully pointed out.
  • Fig. i is a developed plan View of a blank suitable for forming a box and with the invention incorporated therein and as applied to half covers of such box, certain dotted tion, the section being taken on line 2--2 of Fig. 3 l
  • Fig. 3 is a transverse sectional View taken on line 9 3 of Fig. 2 and in the direction of the arrows, one of the half covers being shown in the closed and locked position and the other half eover being shown in the released and partly open relation.
  • the box insofar as the bottom and sides and, in general, the ends may partake of many forms.
  • the invention is directed to half covers and the side edges thereof and the adjacent end portions oi the box.
  • each side wall is a l (Cl. 229-45) bottom forming portion Il and hingedly connected to the bottom edge of the exterior end wall is a bottom forming portion Il.
  • These bottom portions have dimensions substantially equal to the dimension of the wall to which they are attached and have another dimension approximately half that of the corresponding dimension of the other wall; that is. the end attached bottom portion ii has a length about half that of the length of the side wall and vice versa.
  • each side wall has hingedly connected thereto as at I5 the half cover i6.
  • This half cover has hingedly connected to it at l1 the cover ap I8.
  • Centrally disposed near the binge il and in each half cover is the tongue formation i9 forming finger hole 20 when the tongue is depressed into the box. This is to facilitate cover opening.
  • Hingedly connected at 2i to the upper edge of each exterior end wall ii is a ledge portion 22 and hingedly connected thereto as at 23 is an inside end wall formation or portion'zl. This portion may have the dimension such that it is co-extensive with the end il when the box is erected or, as shown herein, may terminate short of the bottom thereof as desired or required.
  • each exterior end wall il there is formed a tongue 25 which has hinge connection with the end wall at 2B and includes a hinge crease Ti and the aforesaid forms the hand hole 28 in the exterior end wail.
  • The'ledge forming portion 22 overlies the top of this reinforcing member and the inside end wali it lies inwardly of the stick and extends downwardly irom the ledge, as shown in Fig. 2.
  • the inside end wall then is directed outwardly and downwardly and is suitably secured by staplirig and the like d@ to the adjacent exterior end wall.
  • This inside end wail also has a hand hole ioation 3i therein and the stock or tongue i3d resulting therefrom constitutes a light shield and in certain instances may constitute a cover supporting element as hereinafter pointed out.
  • the so called stick hereinbefre mentioned may bel of wood or may be of solid fibre board or may comprise a suitable corrugated board formation. It will be observed that the inturned tongue 23 protects the fingers of the hand. when inserted into the hand hole 28, from picking up slivers, etc. v
  • this reinforcement serves as a stiffening back stop so that the end wall structure at its central portion,l will not bow and thus defeat the purposesof the lock hereinafter to be more fully described.
  • Each of the inside end walls 24 includes a recess 33 and in vertical alignment therewith is another recess 34, the latter comprising an extension of the hand hole 3
  • the light shield 32 may have this stock integral therewith or removed therefrom. In Figs. 2 and 3 the stock is shown removed therefrom.
  • Each cover flap I8 has a length slightly less than the half cover I6.
  • each longitudinal series of recesses would be individual to each longitudinal series of tongues on a side edge oi' a cover flap.
  • each side edge of the flap I8 is provided with a pair of aligned tongues and 36 arranged in tandem. Tongue 35 is receivable by recess 33 and tongue 36 is receivable by recess 34 when the half cover is closed.
  • Fig. 3 shows but one cover flap so associated and the other partially open but it will be noted that there is sufficient room left in the two recesses to receive and accommodate the other pair of tongues upon the partially open cover.
  • each cover at each side edge is multiple locked to the adjacent end wall structure.
  • This locking arrangement will yield upon sufficient drawing ⁇ more, while but a single longitudinal series of recesses are utilized at each end of the box the construction may in certain instances be modified so that the recesses are duplicated and are in posed thereon, the naps I 8 having their side edges locked at the recesses 33 by the tongues 35, the covers are stiffened. Since recess 34 is a slot, the tongue 33 has no load supporting function in the present specific disclosure.
  • a paper board box having a bottom and opposed endv and side walls, said end walls each having a hand hole, each end wall being folded upon itself at its upper end to form a pocket disposed transversely of and coextensive with the end wall and a portion of which constitutes the upper end of the hand hole, a reenforcing member of a size and shape to snugly fit within said pocket and extending substantially throughout the length thereof, the combination therewith of covers hinged to the upper edges of said side walls and of a length corresponding to the length thereof, the free ends of said covers meeting longitudinally of said box, flaps on the ends of said covers, said flaps being of a length substantially equal to the distance between the inner faces of the folded ends of said box and of depths substantially equal to the breadth of said pockets, a pair of spaced and aligned locking tongues integral with said flap ends and arranged in tandem to project outwardly from each of the outer ends of each of said flaps, said tongues being rounded at their ends and of lengths corresponding to the thickness of

Description

Feb- 19, 1952 K. c. FERGUSON PAPERBOARD Box COVER LocK Filed Jan. '7, 1949 JNVENTOR /i/f/v/vfr/f (YE/60.70#
BY v
/9 fak/vim..
Patented Feb. 19, 1952 Kenneth C. Ferguson, Indianapolis, Ind., assigner to Inland Container Corporation, Indianapolis,
Ind., a corporation Anuman January 7, 194s, serai Nn. 69,191
This invention relates to a cover lock for a paper board box.
The chief object of this invention is to improve cover locks of paper board boxes so that such locks, despite re-use, retain their effectiveness throughout the life of the box.
In so-called beer cases'the boxes have a life of from to 25 round trips and in these instances, as well as others, it is the purpose of.
the invention to insure locking of the cover during, as stated, the life of the box.
Boxes generally are of corrugated board character but are not necessarily limited thereto because they may be of solid fibre type. Also boxes may be made up in various manners and that herein shown is illustrated and described merely by way of example.
The chief feature of the present invention resides in provision of complementary tongue and recessing locking associations which are peculiarly applicable to paper board boxes as hereinafter morevfully pointed out.
Other objects and features of the invention kwili be set forth more fully hereinafter.
The full nature of the invention will be understood from the accompanying drawings and the `following description and claim:
In the drawings Fig. i is a developed plan View of a blank suitable for forming a box and with the invention incorporated therein and as applied to half covers of such box, certain dotted tion, the section being taken on line 2--2 of Fig. 3 l
and in the direction of the arrows.
Fig. 3 is a transverse sectional View taken on line 9 3 of Fig. 2 and in the direction of the arrows, one of the half covers being shown in the closed and locked position and the other half eover being shown in the released and partly open relation. y
tis initially stated herein, the box, insofar as the bottom and sides and, in general, the ends may partake of many forms. Herein, however, the invention is directed to half covers and the side edges thereof and the adjacent end portions oi the box. i
In the figures, it indicates a pair of side walls which are hingedly connected to exterior end walls ii. These are, arranged in sequence and upon one of the side walls or the end wall, and herein the former, is a flap i2. Hingediy conto the bottom edge of each side wall is a l (Cl. 229-45) bottom forming portion Il and hingedly connected to the bottom edge of the exterior end wall is a bottom forming portion Il. These bottom portions have dimensions substantially equal to the dimension of the wall to which they are attached and have another dimension approximately half that of the corresponding dimension of the other wall; that is. the end attached bottom portion ii has a length about half that of the length of the side wall and vice versa.l
All of the aforesaid are stapled together in the conventional manner to form a closed bottom, open top box having plural thickness end walls and single thickness side walls and a double thickness bottom.
The opposite edge of each side wall has hingedly connected thereto as at I5 the half cover i6. This half cover has hingedly connected to it at l1 the cover ap I8. Centrally disposed near the binge il and in each half cover is the tongue formation i9 forming finger hole 20 when the tongue is depressed into the box. This is to facilitate cover opening.
Hingedly connected at 2i to the upper edge of each exterior end wall ii is a ledge portion 22 and hingedly connected thereto as at 23 is an inside end wall formation or portion'zl. This portion may have the dimension such that it is co-extensive with the end il when the box is erected or, as shown herein, may terminate short of the bottom thereof as desired or required.
lin each exterior end wall il there is formed a tongue 25 which has hinge connection with the end wall at 2B and includes a hinge crease Ti and the aforesaid forms the hand hole 28 in the exterior end wail.
A reinforcing stick 29 ofthe desired length (the width of the end wall) and the desired depth, see dotted lines Fig. 1, is applied to the end wall interiorly thereof and then the end wall hole forming tongue 25 is forced from the hand hole 2B inwardly and upwardly so that it is disposed centrally below the stick reinforcement and interiorly thereof at the free end of said tongue. Thus the stick is trapped centrally by the exterior end wall carried tongue 25.
The'ledge forming portion 22 overlies the top of this reinforcing member and the inside end wali it lies inwardly of the stick and extends downwardly irom the ledge, as shown in Fig. 2. The inside end wall then is directed outwardly and downwardly and is suitably secured by staplirig and the like d@ to the adjacent exterior end wall. This inside end wail also has a hand hole ioation 3i therein and the stock or tongue i3d resulting therefrom constitutes a light shield and in certain instances may constitute a cover supporting element as hereinafter pointed out.
The so called stick hereinbefre mentioned may bel of wood or may be of solid fibre board or may comprise a suitable corrugated board formation. It will be observed that the inturned tongue 23 protects the fingers of the hand. when inserted into the hand hole 28, from picking up slivers, etc. v
It will also be observed that this reinforcement serves as a stiffening back stop so that the end wall structure at its central portion,l will not bow and thus defeat the purposesof the lock hereinafter to be more fully described.
Each of the inside end walls 24 includes a recess 33 and in vertical alignment therewith is another recess 34, the latter comprising an extension of the hand hole 3|. In box formation the light shield 32 may have this stock integral therewith or removed therefrom. In Figs. 2 and 3 the stock is shown removed therefrom.
When the inside end walls are secured in position the two recesses 33 and 34 are vertically aligned and centrally disposed near the upper portion of the end structure. Each cover flap I8 has a length slightly less than the half cover I6.
slightly spaced relation with respect to the 4two series and thus each longitudinal series of recesses would be individual to each longitudinal series of tongues on a side edge oi' a cover flap.
The invention as specifically disclosed herein, however, is adequate for boxes of beer cases or egg cases of like size or smaller.
When a case has applied thereto, when the `covers are closed, a localized load centrally dis- Consequently, the cover flap can enter the box while the cover at its side edges rests upon the appreciable width ledge portions 22. Each side edge of the flap I8 is provided with a pair of aligned tongues and 36 arranged in tandem. Tongue 35 is receivable by recess 33 and tongue 36 is receivable by recess 34 when the half cover is closed.
The widths of said recesses are suflicient to simultaneously accommodate the adjacent tongues of the adjacent cover flaps. Fig. 3 shows but one cover flap so associated and the other partially open but it will be noted that there is sufficient room left in the two recesses to receive and accommodate the other pair of tongues upon the partially open cover.
When the covers are closed after the box has been filled it will be apparent that thetwo cover flaps have co-extensive frictional contact and that there is sufficient yield therein to permit forcible seating of the tongues 35 and 36 in the adjacent recesses 33 and 34. Thus each cover at each side edge is multiple locked to the adjacent end wall structure. This locking arrangement, however, will yield upon sufficient drawing `more, while but a single longitudinal series of recesses are utilized at each end of the box the construction may in certain instances be modified so that the recesses are duplicated and are in posed thereon, the naps I 8 having their side edges locked at the recesses 33 by the tongues 35, the covers are stiffened. Since recess 34 is a slot, the tongue 33 has no load supporting function in the present specific disclosure. If the bowing be excessive due to undue weight centrally localized thereon, and the tongues 35 attempt to partially withdraw from the recesses 33, then the free edge of the flaps I8 will engage the upper edge of thel tongue 32 which, as previously stated, may have light shield function and this light shield portion 32 may serve to support said covers. Dotted line X in Fig. 2 indicates such depressed position of the cover when light shield supported.
The invention claimed is:
In a paper board box having a bottom and opposed endv and side walls, said end walls each having a hand hole, each end wall being folded upon itself at its upper end to form a pocket disposed transversely of and coextensive with the end wall and a portion of which constitutes the upper end of the hand hole, a reenforcing member of a size and shape to snugly fit within said pocket and extending substantially throughout the length thereof, the combination therewith of covers hinged to the upper edges of said side walls and of a length corresponding to the length thereof, the free ends of said covers meeting longitudinally of said box, flaps on the ends of said covers, said flaps being of a length substantially equal to the distance between the inner faces of the folded ends of said box and of depths substantially equal to the breadth of said pockets, a pair of spaced and aligned locking tongues integral with said flap ends and arranged in tandem to project outwardly from each of the outer ends of each of said flaps, said tongues being rounded at their ends and of lengths corresponding to the thickness of the material forming the inner wall of said pocket, and the inner wall of each pocket having a pair of spaced and aligned recesses arranged in tandem and so located as to receive said tongues on the adjacent ends of the flaps respectively and hold the/'same in locking engagement when said flaps have been forced to the limit of their downward movement between said box ends.
KENNETH C. FERGUSON.
l'RalmlmNcEs CITED The following references are of record in the le of this patent:
UNITED STATES PATENTS
US69791A 1949-01-07 1949-01-07 Paperboard box cover lock Expired - Lifetime US2586156A (en)

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Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2723797A (en) * 1952-02-04 1955-11-15 Gaylord Container Corp Cover locking and reinforcing device for a container
US2741419A (en) * 1951-12-11 1956-04-10 Nat Container Corp Box and clip construction
US2746668A (en) * 1952-06-06 1956-05-22 Caesar H D Antonio Merchandise case having a detachable moisture proof bottom tray
US2900122A (en) * 1957-11-04 1959-08-18 Donald Z Steiner Carton
US2937799A (en) * 1955-01-31 1960-05-24 Inland Container Corp Fibreboard fork lift containers
US2939625A (en) * 1957-09-20 1960-06-07 Container Corp Container with locking closure
US3008627A (en) * 1959-01-26 1961-11-14 Phillips Electrical Company Lt Hand grips for cartons
US3095137A (en) * 1961-08-11 1963-06-25 Container Corp Container with cover flange and method of forming
US3107041A (en) * 1961-01-31 1963-10-15 Mead Corp Reinforced folded blank carton
US3119544A (en) * 1962-03-30 1964-01-28 Procter & Gamble Composite package
US3170616A (en) * 1963-02-01 1965-02-23 Robert S Crozier Lock flap-beer carton
US3181768A (en) * 1963-07-01 1965-05-04 Weyerhaeuser Co Shipping container for furniture or the like
US3226007A (en) * 1964-04-03 1965-12-28 Herbert A Post Inc Cartons
US3282461A (en) * 1964-01-21 1966-11-01 Dow Chemical Co Tote case for bottles and the like
US3291371A (en) * 1965-03-30 1966-12-13 Unipak Cartons Ltd Cartons
US3330467A (en) * 1965-05-20 1967-07-11 Waldorf Paper Prod Co Container closure
US3788538A (en) * 1972-03-23 1974-01-29 Miller Brewing Beer carton
US5350109A (en) * 1993-03-08 1994-09-27 Labatt Brewing Company Limited Paperboard carton handholds
US20130037432A1 (en) * 2011-08-12 2013-02-14 Jack Cheng Chang Package Configuration for Disposable Absorbent Articles
US20190300224A1 (en) * 2018-04-03 2019-10-03 Maintek Computer (Suzhou) Co., Ltd Packaging box

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2078087A (en) * 1936-01-17 1937-04-20 Inland Container Corp Light shielded handled fiberboard case
US2124326A (en) * 1937-12-20 1938-07-19 Gaylord Container Corp Container
US2179981A (en) * 1939-03-13 1939-11-14 Wabash Fibre Box Company Carton
US2321145A (en) * 1939-03-23 1943-06-08 Jones Samuel Floyd Carton
US2409673A (en) * 1945-01-12 1946-10-22 Downing Box Company Fiberboard container having reinforced ends and integral hinged closure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2078087A (en) * 1936-01-17 1937-04-20 Inland Container Corp Light shielded handled fiberboard case
US2124326A (en) * 1937-12-20 1938-07-19 Gaylord Container Corp Container
US2179981A (en) * 1939-03-13 1939-11-14 Wabash Fibre Box Company Carton
US2321145A (en) * 1939-03-23 1943-06-08 Jones Samuel Floyd Carton
US2409673A (en) * 1945-01-12 1946-10-22 Downing Box Company Fiberboard container having reinforced ends and integral hinged closure

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2741419A (en) * 1951-12-11 1956-04-10 Nat Container Corp Box and clip construction
US2723797A (en) * 1952-02-04 1955-11-15 Gaylord Container Corp Cover locking and reinforcing device for a container
US2746668A (en) * 1952-06-06 1956-05-22 Caesar H D Antonio Merchandise case having a detachable moisture proof bottom tray
US2937799A (en) * 1955-01-31 1960-05-24 Inland Container Corp Fibreboard fork lift containers
US2939625A (en) * 1957-09-20 1960-06-07 Container Corp Container with locking closure
US2900122A (en) * 1957-11-04 1959-08-18 Donald Z Steiner Carton
US3008627A (en) * 1959-01-26 1961-11-14 Phillips Electrical Company Lt Hand grips for cartons
US3107041A (en) * 1961-01-31 1963-10-15 Mead Corp Reinforced folded blank carton
US3095137A (en) * 1961-08-11 1963-06-25 Container Corp Container with cover flange and method of forming
US3119544A (en) * 1962-03-30 1964-01-28 Procter & Gamble Composite package
US3170616A (en) * 1963-02-01 1965-02-23 Robert S Crozier Lock flap-beer carton
US3181768A (en) * 1963-07-01 1965-05-04 Weyerhaeuser Co Shipping container for furniture or the like
US3282461A (en) * 1964-01-21 1966-11-01 Dow Chemical Co Tote case for bottles and the like
US3226007A (en) * 1964-04-03 1965-12-28 Herbert A Post Inc Cartons
US3291371A (en) * 1965-03-30 1966-12-13 Unipak Cartons Ltd Cartons
US3330467A (en) * 1965-05-20 1967-07-11 Waldorf Paper Prod Co Container closure
US3788538A (en) * 1972-03-23 1974-01-29 Miller Brewing Beer carton
US5350109A (en) * 1993-03-08 1994-09-27 Labatt Brewing Company Limited Paperboard carton handholds
US20130037432A1 (en) * 2011-08-12 2013-02-14 Jack Cheng Chang Package Configuration for Disposable Absorbent Articles
US20190300224A1 (en) * 2018-04-03 2019-10-03 Maintek Computer (Suzhou) Co., Ltd Packaging box

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