WO2008124193A1 - Contenant fermé par un couvercle avec une bande déchirable - Google Patents

Contenant fermé par un couvercle avec une bande déchirable Download PDF

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Publication number
WO2008124193A1
WO2008124193A1 PCT/US2008/004698 US2008004698W WO2008124193A1 WO 2008124193 A1 WO2008124193 A1 WO 2008124193A1 US 2008004698 W US2008004698 W US 2008004698W WO 2008124193 A1 WO2008124193 A1 WO 2008124193A1
Authority
WO
WIPO (PCT)
Prior art keywords
carton
lid
panel
flange
paper
Prior art date
Application number
PCT/US2008/004698
Other languages
English (en)
Inventor
Timothy J. Justice
Original Assignee
International Paper Company
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by International Paper Company filed Critical International Paper Company
Priority to BRPI0809794-1A priority Critical patent/BRPI0809794B1/pt
Publication of WO2008124193A1 publication Critical patent/WO2008124193A1/fr

Links

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
    • B65D85/62—Containers, packaging elements or packages, specially adapted for particular articles or materials for stacks of articles; for special arrangements of groups of articles
    • 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
    • B65D5/32—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 having bodies formed by folding and interconnecting two or more blanks each blank forming a body part, whereby each body part comprises at least one outside face of the box, carton or tray
    • B65D5/321—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 having bodies formed by folding and interconnecting two or more blanks each blank forming a body part, whereby each body part comprises at least one outside face of the box, carton or tray at least one container body part formed by folding up portions of a single blank connected to a central panel from all sides
    • 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
    • B65D5/44—Integral, inserted or attached portions forming internal or external fittings
    • B65D5/46—Handles
    • B65D5/46008—Handles formed separately from the container body
    • B65D5/46032—Handles with anchoring elements, e.g. formed by folding a blank
    • B65D5/4604—Handles with anchoring elements, e.g. formed by folding a blank not formed by folding a blank
    • 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
    • B65D5/54—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing
    • 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
    • B65D5/54—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing
    • B65D5/545—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing for opening containers formed by erecting a "cross-like" blank
    • B65D5/546—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing for opening containers formed by erecting a "cross-like" blank the lines of weakness being provided in an extension panel or tab of a hinged closure
    • 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
    • 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
    • B65D5/72—Contents-dispensing means
    • B65D5/721—Contents-dispensing means consisting of mobile elements forming part of the containers or attached to the containers

Definitions

  • the present invention relates generally to a paperboard container for shipping, storing and handling a plurality of items such as, for example, paper products. More particularly, the invention relates to a shipping and storage carton for cut sheets of paper, wherein the carton has a size and weight to promote easy handling and storage and has a tear-strip to facilitate access to the paper.
  • the carton may be reclosed after opening to keep unused paper fresh and neatly stacked, and has a built-in handle for ease and convenience in carrying the carton.
  • Cut-sized paper such as conventional photocopy paper
  • Cut-sized paper typically is wrapped in reams each containing, for example, 500 sheets. It is common for a plurality of reams to be bundled together and packaged in a corrugated container for shipping, storage and handling. For example, it is common to package from five to ten reams of paper in a single container, with a lid secured over the container to keep the reams from falling out of the container during shipping and handling. Since a single ream of paper weighs about five pounds, packages containing from five to ten reams of paper are heavy and difficult to handle. Moreover, they are relatively large and require substantial storage space.
  • the reams of paper are closely surrounded by the container walls, and the lack of space between the reams of paper and the container walls makes it difficult to remove the reams of paper for use. Additionally, each ream must be individually opened to gain access to the paper, and the ream wrap disposed of.
  • Unwrapped cut sheets of paper are sometimes packaged loose in cartons designed to closely fit the paper and protect it from damage. Unwrapped cut sheets of paper do not require removal and discarding of ream wrap, but conventional cartons of this type generally are also sized to hold from five to ten reams of paper and thus are relatively difficult to handle and store. Moreover, these cartons generally have either a removable lid or foldable flaps to close the top of the carton, and the lid is removed or the flaps opened to form an open top through which product is removed from the carton. With such packaging it is difficult to remove the contents without damaging the carton or inverting it to pour the contents out because of the lack of space to insert the hands of the user between the side walls of the carton and the paper stored therein.
  • a tear strip in the corrugated container described hereinabove.
  • the tear-strip is gripped at one end thereof and pulled to tear it from a panel of a corrugated container.
  • removal of the tear-strip permits the corrugated container to hinge open.
  • more than one tear-strip may be used to provide for removal of a portion of a container. See U.S. Pat. Nos. 6,422,454; 3,863,834; 7,140,493; 5,487,506; 3, 831,834; 3,712,531 & U.S. Pub. No. 2005/0051573; 2004/0232039, 2003/0234284, 2003/0116613, 2002/0166889.
  • the tear-strip comprises a pair of perforation lines running lengthwise or across a panel.
  • the tear-strip has a tab at one end which is gripped by a user and pulled in an upward and forward direction to remove the tear-strip from the panel.
  • the tear-strip breaks and results an unattractive carton which is a problem if the end user intends on re-using the carton or keeping it around.
  • a tear starts on the outer layer of the paperboard, and will tear at an angle all the way across the container or carton.
  • a container or carton having a tear strip that overcome the aforementioned problem described hereinabove and to provide an aesthetically pleasing container or carton that removal of the tear-strip permits the corrugated container to hinge open. It is also desirable to provide a carton for shipping and storing sheets of paper, such as photocopy paper or the like, which not only is smaller and lighter in weight than conventional multi-ream containers and accordingly is easier to handle and store, but which also protects the paper against physical damage from the environment.
  • a combination of a smaller multi-ream container together with a carry handle, for example, is ideally suited for retail sales to home users.
  • the present invention is directed to improve the tear-strip of a corrugated container when a user tears a corrugated container open using conventional tear-tape.
  • Using a series of strategically placed cut lines along the tear-tape path the user can effectively control the direction that the tearing travels, and therefore, prevent the breaks of the tear-strip.
  • the main advantage of the inclined cut lines is to improve the visual characteristics of the container /carton/ box after it is opened using a tear-tape or a tear- strip.
  • the inclined cut lines feature control the direction of the stress tear, keeping it back towards the tear-strip instead of across the carton surface.
  • the inclined cut lines feature allows the tear to proceed in a very predictable manner to give an attractive edge and not compromise the structural integrity of the container/carton/box.
  • the present invention provides a container having a box-shaped main body portion and a lid that is sized and configured to fit over an open upper end of the main body. Sidewalls of the lid telescope over mating sidewalls of the main body and are adhered thereto, such as by adhesive or tape.
  • One sidewall of the lid includes a tear-strip defined by two parallel inclined cut lines running along the length of the middle of the sidewall panel. One end of the tear-strip includes a tab for gripping by a user. Alternatively, a tear strip might be provided in additional sidewalls of the Hd.
  • the container comprises at least one panel comprising a tear-strip which comprises a pulling tab at one end.
  • the tear-strip comprises at least two substantially parallel rows of a plurality of inclined cut lines extending along the least one panel.
  • Each of the inclined cut lines comprises an initial end and a terminal end.
  • the terminal end of the cut line is in spatial relation with the initial end of the adjacent cut line whereby a tear initiated at the terminal end of the cut line terminates at the initial end of the adjacent cut line in the direction of tear.
  • One aspect of the present invention is to provide a lidded container for shipping, storing and handling a plurality of items, such as, for example, prepackaged reams of paper and the like.
  • Another aspect of the present invention is to provide a lidded container wherein the lid is secured to the open upper end of the container main body without the use of straps, films or the like.
  • the present invention comprises a carton for shipping and storing cut sheets of paper, wherein the carton holds fewer sheets of paper than conventional containers for this purpose, and is therefore lightweight and easy to handle and store.
  • the carton is constructed for easy access to the paper for unloading it from the carton, and is particularly adapted to ship and store unwrapped sheets of paper, although it may be adapted for shipping and storing individually wrapped reams of paper.
  • the carton includes a base portion having at least one side wall that may be pivoted downwardly to open the carton and expose the contents for easy removal, and a lid portion engaged over the base portion to close the top of the carton and normally hold the pivoted side wall in closed position. When the lid is opened, that side wall may be pivoted downwardly to expose the paper at the top and one side to facilitate access to it.
  • the openable side wall enables the user to easily and quickly grasp and unload the paper stored in the carton, without the necessity of forcing the hands or fingers between the carton side walls and the contents, or turning the carton over and dumping out the contents. Moreover, the lid and openable side wall may be reclosed to protect the paper remaining in the carton.
  • the carton of the invention has a built-in carry handle and is adapted to hold more than one ream of paper, but less than the five or ten reams normally placed in a conventional package.
  • the carton of the invention is adapted to hold approximately three reams of paper, resulting in a lightweight package that is easy to handle. It is not intended, however, to limit the invention to a carton for holding three reams of paper.
  • the carton can be adapted for any quantity of paper, but is generally limited to an amount that is easy to handle and store and that the built-in carry handle can reliably support, which generally does not substantially exceed three reams. After the carton is opened, the user may simply grasp and unload as many sheets as desired, without the need to open individual reams, and the carton may be reclosed to protect the unused sheets.
  • the base portion comprises a bottom wall, opposite end walls, and front and back walls folded from a single unitary blank of corrugated paperboard.
  • End flaps on the back wall are folded inwardly and secured to the end walls by adhesive or other suitable fastening means so that the back wall and end walls remain in an upright position.
  • End flaps or tuck-in flaps on the front wall are folded inwardly but are not attached to the end walls. Instead, they tuck in between the end walls and paper held in the carton, whereby the front wall can be pivoted downwardly to open the front of the carton. After the desired quantity of paper is removed from the carton, the front wall can be pivoted back up to an upright position, with the tuck-in flaps tucked between the end walls and paper to re-close the carton.
  • the lid portion comprises a lid folded from a single unitary blank, with an insert sheet and carry handle assembled to it.
  • the lid has a top wall, depending end flanges, and depending front and back flanges.
  • the depending front flange comprising a tear strip being defined by two parallel successive rows of inclined cut lines.
  • Each of the inclined cut lines having a length (K) and further being spaced apart by a distance (D).
  • the ratio of D/K is from 1 :2 to 4: 1.
  • the back flange has end flaps on its opposite ends, turned inwardly to lie inside and parallel to the end flanges but unattached to the end flanges.
  • the lid back flange and associated end flaps are secured by adhesive or other suitable fastening means to the back wall and end walls, respectively, of the base portion.
  • the lid front flange has a width to extend downwardly over an upper edge portion of the base portion front wall, to hold the front wall in its upright closed position when the lid is in its operative closed position.
  • End flaps on opposite ends of the front flange are turned inwardly to lay inside and parallel to the end flanges and are attached to the end flanges by adhesive or other suitable fastening means.
  • a glue strip on the bottom edge of the lid front flange is secured by adhesive or other suitable fastening means to the base portion front wall, and a tear strip extends along the bottom edge of the front flange between the front flange and the glue strip.
  • a carry handle is attached to the lid to facilitate carrying the carton, and comprises a flexible strap attached to a base plate that is secured beneath an insert panel placed in the lid between the lid top wall and the top sheets of paper.
  • the flexible strap extends through aligned openings in the insert panel and lid top wall.
  • the insert panel may comprise corrugated cardboard, or chipboard, or other suitable material.
  • the carton of the invention may be opened to gain access to the paper stacked inside, and reclosed to protect the remaining paper. It does not require substantial adhesive attachment between the lid and the base, or separate securing means such as straps to keep the lid assembled to the base. Further, the carton preferably holds more than one ream of paper, preferably about three reams, and because of its reduced size and weight, and the provision of a carry handle, the carton is easy to carry and store.
  • Fig. 1 is a plan view of the blank from which the carton base is formed
  • Fig. 2 is a plan view of the blank from which the lid is formed
  • Fig. 3 is a plan view of the insert sheet used in assembling the carry handle to the lid;
  • Fig. 4 is a perspective view of the lid in an inverted, upside-down position
  • Fig. 5 is an exploded top perspective view of the lid and carries handle assembly of the carton of the invention
  • Fig. 6 is a top perspective view of the base portion of the carton of the invention, with the lid omitted and the front wall partially pivoted toward an open position;
  • Fig. 7 A is a top perspective view of a preferred package constructed in accordance with the invention.
  • Fig. 7B is similar to Fig. 7A, illustrating the opening mechanism partially deployed.
  • Fig. 8 is a top perspective view of the package of figure 7, showing the tear strip removed and the lid pivoted upwardly, with the movable front wall pivoted to a partially open position, and wherein the carton contains unwrapped sheets of paper,;
  • Fig. 9 is a top perspective view of the package of figure 8, with the Hd pivoted to a fully open position and the movable front wall pivoted fully downwardly; and,
  • Fig. 10 is a top perspective view of the package of figure 9, with the lid and front wall returned to their closed positions.
  • Figs. 11 is a plan view of arrangement inclined cut lines in two adjacent parallel spaced rows, thereby defining a pair of tear strips operable in opposite tearing directions, respectively.
  • a preferred carton in accordance with the invention is indicated generally at 10 in the drawings.
  • the carton comprises a rectangularly shaped base portion 11 , a lid portion 12, and a carry handle 13.
  • the base portion has a bottom wall 14, opposite end walls 15 and 16, a back wall 17, a movable front wall 18, and an open top 19.
  • the lid 12 is telescopically received over the open top and has a top wall 20, depending end flanges 21 and 22, a depending back flange 23, and a depending front flange 24.
  • a glue strip 25 is joined to the bottom edge of the front flange to secure the front of the lid to the base portion front wall.
  • a tear strip 26 extends between the front flange and glue strip to separate the front flange from the glue strip and enable the lid to be pivoted upwardly. The construction and usage of the tear strip 26 will be described in greater detail hereinafter.
  • a blank Bl for making the base portion 11 is illustrated in figure 1, and comprises bottom wall panel 14, opposite end wall panels 15 and 16 foldably joined to opposite ends of the bottom wall panel, back wall panel 17 foldably joined to a back edge of the bottom wall panel, and movable front wall panel 18 foldably joined to a front edge of the bottom wall panel.
  • Glue flaps 27 and 28 are foldably joined to opposite ends of the back wall panel, and tuck-in flaps 29 and 30 are foldably joined to opposite ends of the front wall panel.
  • Fig. 6 Assembly of the base portion 11 is seen best in Fig. 6.
  • the glue flaps 27 and 28 on opposite ends of the back wall 17 are folded inwardly and glued or otherwise suitably fastened to the inner surface of the respective end walls 15 and 16, but the tuck-in flaps 29 and 30 on opposite ends of the front wall 18 are merely folded inwardly to lie against the inner surface of the end walls.
  • the tuck-in flaps slide along the end walls, between the end walls and paper held in the carton, when the front wall 18 is moved between its upright and lowered pivoted positions.
  • the tuck-in flaps may be suitably shaped, e.g., with a curvilinear free end edge 31 as shown, to facilitate entry of them into the space between the end walls and paper as the front wall is moved to its upright closed position.
  • a finger access cut-out 32 may be provided in the upper edge of the front wall 18 to facilitate moving it downwardly, if desired.
  • a blank B2 for making the lid 12 is illustrated in figure 2, and comprises top wall panel 20, end flange panels 21 and 22 foldably joined to opposite ends of the top wall panel, back flange panel 23 foldably joined along fold line L to a back edge of the top wall panel, and front flange panel 24 foldably joined along a front edge of the top wall panel.
  • Glue strip panel 25 is joined to the free edge of the front flange panel by tear strip 26 extending between the front flange and glue strip to enable separation of the front flange from the glue strip.
  • First glue flaps 33 and 34 are foldably joined to opposite ends of the front flange panel 24, and second glue flaps 35 and 36 are foldably joined to opposite ends of the back flange panel 23.
  • a shaped opening 37 is formed generally through the center of the top wall panel to receive the carry handle 13 as described below.
  • the first glue flaps 33 and 34 on opposite ends of the front flange panel 24 are secured by adhesive or other suitable fastening means against the inner surface of the respective end flanges 21 and 22, but the second glue flaps 35 and 36 are merely folded inwardly parallel to the end flanges and are not attached thereto.
  • a band of adhesive 38 is applied along a bottom edge of the back flange panel 23 and a bottom edge of the second glue flaps 35 and 36 to attach these parts to the back wall and end walls, respectively, of the base portion when the lid is assembled to the base.
  • the glue strip 25 also is adhesively attached to the base front wall, and with the band of adhesive 38 comprises the only adhesive attachment of the lid to the base portion.
  • the front flange panel 24 includes two successive rows of inclined cut lines 56 running lengthwise generally parallel to fold line L.
  • the two successive rows of inclined cut lines 56 are parallel to one another and are spaced apart by a distance (C) as depicted in Fig. 11.
  • the distance (C) can be varied from 0.25" to 1.5" depending on the configuration of the inclined cut lines 56, but in the preferred embodiment of the present invention, the distance (C) is 0.75".
  • the inclined cut lines 24 are spaced from one another at a distance (D).
  • Each of the inclined cut lines 56 includes a length (K) that is position at a perforation angle ( ⁇ ) with respect to the centerline 64.
  • the angle ( ⁇ ) varies accordingly.
  • the angle ( ⁇ ) may be 30°, 35°, 40°, and 50° degrees, but in the preferred embodiment of the present invention, the angle ( ⁇ ) is 45° degrees as will be described hereinafter in greater detail.
  • the preferred D/K ratio is 2: 1.
  • the D/K ratio may vary with the angle ( ⁇ ) and ranges from 1 :2 to 4: 1.
  • the D/K ratio may vary with the angle ( ⁇ ) and ranges from 1 :1 to 3: 1.
  • the D/K ratio may vary with the angle ( ⁇ ) and ranges from 2: 1 to 3 : 1.
  • the D/K ratio may vary with the angle ( ⁇ ) and ranges from 1 :1 to 2:1. Referring specifically to Fig. 1 1, it should be noted that if perforation angle ( ⁇ ) is positive, then the tear direction should be from left to right. Conversely, if the perforation angle ( ⁇ ) is negative, then the tear direction should be from right to left.
  • Inclined cut lines 56 are of any conventional form and preferably cut through the front flange panel 24 completely, although one or more of the inclined cut lines 56 may not extend through the entire thickness of the front flange panel 24, but may instead only cut partially therethrough. Although not shown, the inclined cut lines 56 can be extended to encircle the container 10 to permit complete removal of the severed portion of the container 10, if desired.
  • the inclined cut lines 56 cooperate with one another to define the tear strip 26 where one end of the tear-strip 26 includes a pull-tab 58 for the purpose of gripping, as will be described in greater detail below.
  • the tear-strip 26 is positioned near a centerline of the front flange panel 24.
  • Fig. 7B illustrates the tear-strip 26 in accordance to a preferred embodiment of the present invention.
  • the tear-strip 26 is defined at each of its side edges 58 by the plurality of inclined cut lines 56.
  • the direction of tear is indicated by an arrow.
  • the tear-strip 26 has a tab 22 at one end which is gripped by a user and pulled in an upward and forward direction, as indicated by an arrow, to remove the tear- strip 26 from the front flange panel 24.
  • the tear strip 26 comprises at least two substantially parallel rows of inclined cut lines 56 extending along the front flange panel 24.
  • Each of the inclined cut lines 56 comprises an initial end 60 and a terminal end 62 in which the terminal end 62 of a cut line 56 is in spatial relation with the initial end 60 of the adjacent cut line 56 whereby a tear initiated at the terminal end 62 of the cut line 56 terminates at the initial end 60 of the adjacent cut line 56 in the direction of tear as shown by the arrow.
  • the angle of the inclined cut line 56 with respect of the center line 64 has an effect on the extend to which a tear initiated at the terminal end 62 of the cut line 56 terminates at the initial end 60 of the adjacent cut line 56 in the direction of tear and thus the extend to which front flange panel 24 is torn or damaged. Therefore, the angle of the inclined cut line 56 with respect to the center line can vary widely provided the desired results are produced. In the preferred embodiment of the present invention, the angle of the inclined cut lines is 45° degrees with respect to the center line 64.
  • the inclined cut line having an angle 45° degrees results in tear-strip moving in the direction of the tear without tearing or damaging the front flange panel 24 as compared to embodiments in which the inclined cut lines 56 angle is greater than or less than 45° degrees.
  • other angles such as 25°, 30°, 35°, 40°, and 50° degrees are also within the scope of the present invention.
  • the practice of this invention is not limited to 45° degree angle, and, depending on the needs of a user, the inclined cut lines 56 can be any number of degrees as the design of the tear strip 26 permits.
  • each cut line 56 slopes towards the next following cut line 56 so that tear is initiated in a direction towards the next following cut line 56.
  • the initial end 60 of the next following cut line to the one where tear is being initiated has been reached by the tear-strip 26 in the direction of tear so that no tear force is required at the next following cut line 56 as the tear-strip 26 is pulled and substantially all the force of the pull is applied to the tear initiation at the terminal end 62 of the cut line.
  • the tear proceeds and is completed along an edge substantially like the edge 58 under normal conditions of tearing as the paperboard shears from back to front and the tear-strip 26.
  • lid 12 may be pivoted about opposing sidewall panel 22 of the container 10, thereby exposing the open upper end of the main body portion 14 so that items may be removed therefrom. Lid 12 may be positioned back over the open upper end of the main body portion 1 1, thereby reclosing the container 10 for safekeeping of unused items as depicted in Fig. 10.
  • the lid 12 may be removed entirely from the main body portion 1 1 5 as will be obvious to those of ordinary skill in the art, upon reading the within disclosure.
  • the carry handle 13 includes a flexible strap 40 attached to a rectangular base plate 41 that is adhesively attached to the bottom of an insert sheet 42 sized to fit in the lid beneath the top wall, with the strap projecting through a shaped opening 43 in the sheet 42 and through the shaped opening 37 in the lid top wall.
  • the sheet 42 may be adhesively attached to the underside of the lid top wall, or merely fit into the lid between the top wall and the paper sheets without being attached to the top wall. Either way, this construction results in a very strong carry handle.
  • the package is compact, enabling it to be easily stored under a desk or on a shelf. Opening of the package is easily accomplished simply by removing the tear strip and pivoting the lid upwardly, after which the front wall can be pivoted downwardly to gain access to the paper held in the carton. After the desired amount of paper has been removed, the front wall can be returned to its upright position, with the tuck-in flaps inserted between the base end walls and the paper held in the carton, and the lid returned to its lowered position to close the package and hold the front wall in its closed position.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)

Abstract

La présente invention concerne une caisse en carton légère, facile à transporter (10) pour expédier et stocker du papier découpé et pour avoir rapidement et facilement accès au papier lorsque la caisse en carton (10) est ouverte. La caisse en carton comprend une partie de base (11) et un couvercle (12) fixé de manière pivotante à la partie de base. Le couvercle comprend une bande déchirable (26) qui est définie par deux rangées parallèles successives de lignes de découpe inclinées (56). Chacune des lignes de découpe inclinées (56) a une longueur (K) et est en outre espacée d'une distance (D), le rapport de D/K variant de 1:2 à 4:1. Une paroi avant (18) de la caisse en carton peut être pivotée vers le bas lorsque le couvercle (12) est pivoté vers le haut pour faciliter l'accès aux contenus de la caisse en carton (10) afin d'enlever aisément le papier de la caisse en carton (10). Une poignée de transport (13) est façonnée dans le couvercle (12) pour faciliter le transport de la caisse en carton (10). La caisse en carton (10) peut être refermée après qu'elle ait été ouverte.
PCT/US2008/004698 2007-04-10 2008-04-10 Contenant fermé par un couvercle avec une bande déchirable WO2008124193A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BRPI0809794-1A BRPI0809794B1 (pt) 2007-04-10 2008-04-10 Caixa para embalar e armazenar uma quantidade de folhas de papel cortado e blanque para formar a porção de tampa de uma caixa para embalar e armazenar uma quantidade de folhas de papel cortado

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US92263307P 2007-04-10 2007-04-10
US60/922,633 2007-04-10

Publications (1)

Publication Number Publication Date
WO2008124193A1 true WO2008124193A1 (fr) 2008-10-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/004698 WO2008124193A1 (fr) 2007-04-10 2008-04-10 Contenant fermé par un couvercle avec une bande déchirable

Country Status (2)

Country Link
BR (1) BRPI0809794B1 (fr)
WO (1) WO2008124193A1 (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012024510A1 (fr) * 2010-08-18 2012-02-23 International Paper Company Carton à ouverture facile permettant d'expédier et de stocker du papier coupé
US8413801B2 (en) 2005-06-01 2013-04-09 International Paper Company Lidded container with a tear strip
GB2496437A (en) * 2011-11-14 2013-05-15 Normande De Carton Ondule Sas Soc Carton for paper accessible from the side and top
WO2013068332A1 (fr) * 2011-11-08 2013-05-16 Unilever Plc Boîte en carton
US8459449B2 (en) 2005-06-01 2013-06-11 International Paper Company Easy-opening carton for shipping and storing cut paper
WO2014004219A1 (fr) * 2012-06-25 2014-01-03 Lbp Manufacturing, Inc. Emballage isolant
US9233515B2 (en) 2013-05-10 2016-01-12 Lbp Manufacturing Llc Clamshell carton with tear strip
US9522772B2 (en) 2006-04-03 2016-12-20 Lbp Manufacturing Llc Insulating packaging
US9580228B2 (en) 2006-04-03 2017-02-28 Lbp Manufacturing Llc Thermally activatable insulating packaging
US9591937B2 (en) 2006-04-03 2017-03-14 Lbp Manufacturing Llc Insulating container
CN108995937A (zh) * 2018-10-22 2018-12-14 东莞市美盈森环保科技有限公司 一种包装盒
US10183458B2 (en) 2006-04-03 2019-01-22 Lbp Manufacturing Llc Insulated packaging and method of making same
CN109770502A (zh) * 2019-01-25 2019-05-21 温州优旭塑料制品有限公司 一种餐盒
CN115806100A (zh) * 2021-09-14 2023-03-17 正隆股份有限公司 具有提把功能的箱体

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2667297A (en) * 1950-04-03 1954-01-26 Mcreary Ronald Handled carton for bakery products and the like
US3441193A (en) * 1967-11-16 1969-04-29 James W Castle Side loading egg case
US4008849A (en) * 1976-05-14 1977-02-22 Boise Cascade Corporation Bidirectional tear strip means for cartons and the like
GB1545469A (en) * 1976-04-30 1979-05-10 Alliance Box Co Ltd Cartons
CH660345A5 (en) * 1983-03-15 1987-04-15 Suter Ag E Carrying handle and blank for a package
EP1170221A1 (fr) * 2000-07-03 2002-01-09 The Swatch Group Management Services AG Boíte à couvercle et à abattant frontal formée dans un seul flan sans collage
WO2006060703A2 (fr) * 2004-12-03 2006-06-08 International Paper Company Recipient a couvercle pourvu d'une bande d'ouverture detachable et d'un moyen de compensation du flechissement du couvercle
US20070199837A1 (en) * 2005-06-01 2007-08-30 Justice Timothy J Easy-opening carton for shipping and storing cut paper

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2667297A (en) * 1950-04-03 1954-01-26 Mcreary Ronald Handled carton for bakery products and the like
US3441193A (en) * 1967-11-16 1969-04-29 James W Castle Side loading egg case
GB1545469A (en) * 1976-04-30 1979-05-10 Alliance Box Co Ltd Cartons
US4008849A (en) * 1976-05-14 1977-02-22 Boise Cascade Corporation Bidirectional tear strip means for cartons and the like
CH660345A5 (en) * 1983-03-15 1987-04-15 Suter Ag E Carrying handle and blank for a package
EP1170221A1 (fr) * 2000-07-03 2002-01-09 The Swatch Group Management Services AG Boíte à couvercle et à abattant frontal formée dans un seul flan sans collage
WO2006060703A2 (fr) * 2004-12-03 2006-06-08 International Paper Company Recipient a couvercle pourvu d'une bande d'ouverture detachable et d'un moyen de compensation du flechissement du couvercle
US20070199837A1 (en) * 2005-06-01 2007-08-30 Justice Timothy J Easy-opening carton for shipping and storing cut paper

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8459449B2 (en) 2005-06-01 2013-06-11 International Paper Company Easy-opening carton for shipping and storing cut paper
US8413801B2 (en) 2005-06-01 2013-04-09 International Paper Company Lidded container with a tear strip
US9648969B2 (en) 2006-04-03 2017-05-16 Lbp Manufacturing Llc Insulating packaging
US9591937B2 (en) 2006-04-03 2017-03-14 Lbp Manufacturing Llc Insulating container
US10183458B2 (en) 2006-04-03 2019-01-22 Lbp Manufacturing Llc Insulated packaging and method of making same
US10144573B2 (en) 2006-04-03 2018-12-04 Lbp Manufacturing Llc Thermally activatable insulating packaging
US9522772B2 (en) 2006-04-03 2016-12-20 Lbp Manufacturing Llc Insulating packaging
US9580228B2 (en) 2006-04-03 2017-02-28 Lbp Manufacturing Llc Thermally activatable insulating packaging
WO2012024510A1 (fr) * 2010-08-18 2012-02-23 International Paper Company Carton à ouverture facile permettant d'expédier et de stocker du papier coupé
EA027087B1 (ru) * 2011-11-08 2017-06-30 Унилевер Н.В. Коробка
WO2013068332A1 (fr) * 2011-11-08 2013-05-16 Unilever Plc Boîte en carton
GB2496437B (en) * 2011-11-14 2015-05-13 Normande De Carton Ondule Sas Soc Carton with a partially reclosable lid for shipping and storing cut size sheet of paper
GB2496437A (en) * 2011-11-14 2013-05-15 Normande De Carton Ondule Sas Soc Carton for paper accessible from the side and top
CN104583084A (zh) * 2012-06-25 2015-04-29 Lbp制造业公司 绝缘包装
WO2014004219A1 (fr) * 2012-06-25 2014-01-03 Lbp Manufacturing, Inc. Emballage isolant
US9233515B2 (en) 2013-05-10 2016-01-12 Lbp Manufacturing Llc Clamshell carton with tear strip
CN108995937A (zh) * 2018-10-22 2018-12-14 东莞市美盈森环保科技有限公司 一种包装盒
CN109770502A (zh) * 2019-01-25 2019-05-21 温州优旭塑料制品有限公司 一种餐盒
CN115806100A (zh) * 2021-09-14 2023-03-17 正隆股份有限公司 具有提把功能的箱体

Also Published As

Publication number Publication date
BRPI0809794B1 (pt) 2019-07-09
BRPI0809794A2 (pt) 2014-10-07

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