US3549083A - Handle and closure for flexible box - Google Patents

Handle and closure for flexible box Download PDF

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Publication number
US3549083A
US3549083A US815895A US3549083DA US3549083A US 3549083 A US3549083 A US 3549083A US 815895 A US815895 A US 815895A US 3549083D A US3549083D A US 3549083DA US 3549083 A US3549083 A US 3549083A
Authority
US
United States
Prior art keywords
handle
panel
box
stiffener
slit
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
Application number
US815895A
Other languages
English (en)
Inventor
Leonard E Canno
Robert A Krissel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Equitable Bag Co Inc
Original Assignee
Equitable Bag Co Inc
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 Equitable Bag Co Inc filed Critical Equitable Bag Co Inc
Application granted granted Critical
Publication of US3549083A publication Critical patent/US3549083A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/06—Handles
    • B65D33/12—String handles
    • 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
    • B65D5/46056—Handles formed separately from the container body made of cord

Definitions

  • This invention preferably makes use of a handle such as shown in the US. Pat. No. 3,339,822 issued to CC. Pearl,
  • this invention secures the handle to a separate piece of cardboard or similar anchoring means.
  • the folding panels at the top of the flexible box, on both sides thereof, have slits that register withone another when the top panels are folded into closed positions.
  • the handle is stiff enough to be readily pushed through the slit in the panel that is to be folded down first when the top is being closed.
  • the handle is then bent up at a right angle and it is inserted into the slit in the upper panel.
  • the handle distorts the sides of the slits and fits tightly enough to hold the panel in closed position.
  • FIG. 1 is a fragmentary view showing the upper end of a flexible box made in accordance with this invention, the front edge being partly broken away and in section;
  • FIG. 2 is a view of the handle and the piece of board to which the handle is connected;
  • FIGS. 3 and 4 are enlarged sectional views taken on the lines 3-3 and 4-4, respectively, of FIG.'2;
  • FIG. 5 is a sectional view taken on the line 5-5 of FIG. 1;
  • FIG. 6 is a view of the upper part of the carrier box bag shown in FIG. 1 but with the top part way closed;
  • FIG. 7 is a sectional view through the upper portion of the box bag after the bag is fully closed.
  • FIG. 8 is a reduced scale view of the box shown in the other views, but with the box fully closed.
  • a flexible box 10 shown in FIG. 1, has a front panel 12 and a back panel 14 connected together by side panels 16.
  • the box has lap seams 18 which are glued or otherwise bonded to make the panels 12, 14 and 16 an integral structure which is effectively a one-piece construction.
  • the panels 12 and 14 and the sides 16 are preferably made of paper, but other sheet material can be used.
  • a stiffener 20 which is preferably made of cardboard of sufficient thickness to make the top of the box stiff enough to prevent any substantial bending when the box is being carried.
  • the thickness and stiffness of this stiffener 20 will, of course, depend upon the size of the box and the load which-the box is intended to carry.
  • the front stiffener 20 has a width substantially equal to the width of the front panel 12 and has a depth equal to the width of the side panels 16.
  • the stiffener 20 is bonded to the front panel 12 by adhesive or in any other desired manner and the bonding preferably extends over the'entire areas of the confronting faces of the stiffener 20 and the upper part of the panel 12 with which the stiffener 20 contacts.
  • This back stiffener 22 is of the same size as the front stiffener 20 but differs in construction in that it has diagonally extending slots 24 extending upward from its bottom corners at 45 to locations near the upper edge of the back stifl'ener 22. There are short sections 26 of the stiffener 22 beyond the ends of the slot 24 connecting the center portion of the stiffener 22 with tabs 28 of the stiffener beyond the slots 24.
  • slots 24 are to provide hinge lines along which the back panel 14 can bend easily for purposes which will be explained, and in place of the continuous slots 24 shown in FIG. I, incised lines can be used.
  • slit 30 there is a slit 30 in the stiffener 22 and in the back panel 14.
  • a similar slit 32 extends through the front stiffener 20 and the front panel 12.
  • These slits 30 and 32 are centrally located between the upper and lower edges of the stiffeners 20 and 22.
  • Narrow slots can be provided in place of the slits 30 and 32, but if slots are used, they should be narrower than the handle of'the box for reasons which will be explained in connection with FIG. 7.
  • Slits have the added advantage that there is no material removed in forming them and thus no waste which must be disposed of when making the boxes on high speed machinery.
  • FIG. 2 shows the handle construction of this invention.
  • a handle 36 is attached to a free panel 38 by staples 40.
  • the handle 36 is preferably formed of tubular plastic material of sufficient diameter to provide a comfortable handle for carrying the box.
  • the staples 40 extend through the panel 38 and are applied with sufiicient force to flatten the plastic tube of which the handle 36 is made. This flattening of the tube is illustrated by the sectional view in FIG. 4.
  • the flattened tube provides a stronger connection between the handle 36 and the panel 38 since more force is required to pull the handle out of the staples 40 than would be the case if the handle were not flattened.
  • the upper staples 40 are located midway between the upper and lower ends of the panel 38. Thus when the handle 36 is bent upwardly, substantially normal to the surface of the panel 38, the handle is located at or near the middle of the panel 38. This location of the upper staples 40 is illustrated in FIG. 2 where the staples 40 are shown at a distance W/2 on a panel having a total width W. p
  • the free panel 38 is preferably made of cardboard since this is the most inexpensive material for the purpose, but other materials can be used, if desired, provided that they have sufficient stiffness to distribute the load of the handle over a substantial area of the stiffeners 20 and 22 when the box is closed, as shown in FIGS. 7 and 8.
  • the handle 36 When the box is supplied to the user, the handle 36 is preferably located in position as shown in FIGS. 1 and 5, though the box is folded flat along fold lines 41 in accordance with conventional practice, after the handle 36 has been located in the position shown.
  • the handle 36 is assembled with the front panel 12 by inserting the handle through the slit 32 in the manner illustrated in FIG. 5.
  • the edges of the slit 32 are displaced by the insertion of the handle 36 and this displacement requires that the handle be inserted through the slit 32 at a location intermediate the ends of the slit where the edges of the slit can move away from one another without tearing the panel 12 or the stiffener 20.
  • the handle 36 As the handle 36 is inserted through the slit 32, the handle travels along the slit toward the opposite ends of the slit to the approximate position shown in FIG. 1.
  • the separation of the ends of the handle 36, as determined by the location of the upper staples 40 (FIG. 2) is preferably slightly less than the length of the slit 32 so that the handle can be pulled all the way into the slit without tearing the ends of the slit.
  • each tab 28 folds into a position which locates one side 54 parallel to the front fold line 50 and at substantially the same level as this fold line 50.
  • the top edge of the tab 28 forms an edge 56 at right angles to the side 54.
  • the handle 36 is inserted through the slit 30 in the back panel and the back panel is then folded down over the folded upper end of the front panel 12 while pulling the handle 36 through the slit 30.
  • the displacement of the edges of the slit 30 causes them to grip the handle 36 tightly and in such a manner that they strongly resist reverse movement of the folded position of the back panel 14 upward along the handle 36. Any such relative movement causes the edges of the slit 30 to grip the handle with a togglelike pressure. Thus the box is held tightly closed.
  • the panel 38 to which the handle 36 is connected, bears against the underside of the stiffener 20, which, in turn, bears against the under side of the back stiffener 22 to support the box.
  • the load is transmitted through the transversely extending portions of the handle are unsymmetrical'with respect to the panel 38 so that the panel accommodates itself to the clearances provided by the construction and there is some flexing of the panel 38 and stiffeners 20 and 22 as necessary to distribute the load over the respective areas of the supporting structures, in accordance with the load carried in the box.
  • the combination comprising a flexible box having front and back panels and side panels connecting the front and back panels, each of the front and back panels including a flexible lower portion and a stiffener bonded to the upper portion of each of the front and back panels, each stiffener extending downward from the upper end of its respective panel for a distance substantially equal to the width of a side panel, elongated openings through each of the front and back panels and through the stiffeners at the center region of each of the stiffeners, the stiffened upper portion of the front panel extending from its lower edge rearward toward the back panel and the stiffened upper portion of the back panel extending from its lower edge forward over said upper portion of the front panel to close the box, said openings being in position to register with one another with the box so closed, a free panel located adjacent to the front stiffener and with a top face of the free panel generally parallel to and confronting the back face of said front stiffener, a loop handle having end portions that lie against the top face of the free panel between said top face and the front stiffener and
  • thehandle having a cross section wider than the opening through the upper stitfened'portion of the front panel so that theside edges of the front panel opening are distorted by the handle and the handle is held in a friction grip of the distorted sides of the front panel opening, and the handle being bent upward at right angles to the top surface of the free panel at the fastening means and extending through the registering openings in the upper stifiened portions of the front and back panels.
  • the flexible box combination described in claim 1 characterized by the handle extending through one of the sides to hold it in assembled relation with the box when the box is shipped in fiat condition in a stack, and the opening through which the handle extends having its sides distorted by thehandletransverselyof the plane of the side throu h which the handle extends to provide a friction grip for ho drug the handle assembled with the box.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
  • Bag Frames (AREA)
US815895A 1969-04-14 1969-04-14 Handle and closure for flexible box Expired - Lifetime US3549083A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US81589569A 1969-04-14 1969-04-14

Publications (1)

Publication Number Publication Date
US3549083A true US3549083A (en) 1970-12-22

Family

ID=25219126

Family Applications (1)

Application Number Title Priority Date Filing Date
US815895A Expired - Lifetime US3549083A (en) 1969-04-14 1969-04-14 Handle and closure for flexible box

Country Status (4)

Country Link
US (1) US3549083A (pt)
DE (1) DE2017621A1 (pt)
FR (1) FR2043114A5 (pt)
GB (1) GB1296265A (pt)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3672562A (en) * 1969-07-15 1972-06-27 Windmoeller & Hoelscher Carrying bag of plastics material sheeting
US5165568A (en) * 1991-11-29 1992-11-24 Rock-Tenn Company Container with external resealing bag
CN112061579A (zh) * 2020-08-14 2020-12-11 安徽瀚洋旅游用品有限公司 一种便捷式防伪彩色印刷包装盒

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3672562A (en) * 1969-07-15 1972-06-27 Windmoeller & Hoelscher Carrying bag of plastics material sheeting
US5165568A (en) * 1991-11-29 1992-11-24 Rock-Tenn Company Container with external resealing bag
CN112061579A (zh) * 2020-08-14 2020-12-11 安徽瀚洋旅游用品有限公司 一种便捷式防伪彩色印刷包装盒

Also Published As

Publication number Publication date
GB1296265A (pt) 1972-11-15
FR2043114A5 (pt) 1971-02-12
DE2017621A1 (de) 1970-10-15

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