WO1993018975A1 - Recipients comprenant des couvercles rapportes - Google Patents

Recipients comprenant des couvercles rapportes Download PDF

Info

Publication number
WO1993018975A1
WO1993018975A1 PCT/US1993/002276 US9302276W WO9318975A1 WO 1993018975 A1 WO1993018975 A1 WO 1993018975A1 US 9302276 W US9302276 W US 9302276W WO 9318975 A1 WO9318975 A1 WO 9318975A1
Authority
WO
WIPO (PCT)
Prior art keywords
lids
lid
pocket
container
finger
Prior art date
Application number
PCT/US1993/002276
Other languages
English (en)
Inventor
Eric D. Stein
Original Assignee
Buckhorn Material Handling Group, 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 Buckhorn Material Handling Group, Inc. filed Critical Buckhorn Material Handling Group, Inc.
Publication of WO1993018975A1 publication Critical patent/WO1993018975A1/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
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/14—Non-removable lids or covers
    • B65D43/16—Non-removable lids or covers hinged for upward or downward movement
    • B65D43/163—Non-removable lids or covers hinged for upward or downward movement the container and the lid being made separately
    • B65D43/164—Non-removable lids or covers hinged for upward or downward movement the container and the lid being made separately and connected by interfitting hinge elements integrally with the container and the lid formed respectively
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/10—Details of hinged closures
    • B65D2251/1083—Closures formed of several sections hinged to the container or base

Definitions

  • the invention relates to attached lid containers wherein the container is stackable with the lids in their closed position and nestable with the lids open and hanging downwardly along the sides of the container. DESCRIPTION OF RELATED ART
  • attached lid containers are stacked on top of each other with the bottom wall of an upper container resting on the closed lids of the lower container.
  • the lids have a recessed mid portion that supports the bottom wall of an upper adjacent container during stacking.
  • the containers are typically large enough to hold as much as fifty lbs. of contents, which can mean that the lids of a bottom container in a stack six high can support as much as 250 lbs of load.
  • a free end of the lids is shaped with fingers or appendages that interdigitate or interleave with matching structure forming the joint.
  • the facing structure of the lids are constructed in mirror image of one another. Between the fingers of the free ends of the lids are formed pockets for receiving the fingers of the facing lids so that a
  • the tendency for the lids to separate along the closure joint is prevented by providing each of the lids with an interlocking structure.
  • the free ends of the lids which are in mirror image of one another, have an interlocking structure so that the structure of one lid is received within the mating interlocking structure of the other lid.
  • the interlocking structure includes fingers formed along the free edge of the lids with pockets or recesses formed therebetween for receiving the fingers and forming a joint between the two lids.
  • a cut-back edge portion or wedge-shaped portion is provided to resist the pulling apart or separation of the lids along the joint with the lids in the closed position.
  • the cut-back or wedge-shaped portion is received within a correspondingly shaped flared portion of the pocket between the- fingers of the facing lid.
  • the fingers are tapered to" become narrower toward their distal end portion and then expand outwardly to form the cut-back portion or wedge-shaped portion at the end of each finger.
  • Fig. 1 is a plan view of a container with an attached lid constructed according to a preferred embodiment of the invention, wherein only one lid is shown for clarity.
  • Fig. 2 is an end view of the container and lid of Fig. 1.
  • Fig. 3 is a side view of the container and attached lid of Fig. 1.
  • Fig. 4 is a section of the lid of Fig. 1 taken along line A-A.
  • Fig. 5 is a section of the container of Fig. 1 taken along a line B-B.
  • Fig. 6 is a partial end view of the container and lid of Fig. 1 shown on a reduced scale with the lid in a closed position.
  • Fig. 7 is a plan view of a lid constructed according to a second embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • the container 1, constructed according to a preferred embodiment of the invention, has an attached lid 2 that is hinged to the container along a hinge axis 3, in a conventional manner. Only one lid 2 is shown in the figures for clarity, but it is apparent that another lid facing the shown lid and constructed in mirror image thereof would be hinged to the other side of the container.
  • the container has side walls 4, 5 to which lid 2 is hinged along the top; end walls 6, 7 and a bottom wall 12. As shown in Fig. 2, the lid rotates about hinge axis 3 to an open position (not shown) wherein the lid hangs down along side wall 4 after being rotated approximately 270°. With the lids in the open position, the containers can be nested within one another for transporting nested stacks of empty containers.
  • the upper part of the container is reinforced by ribbing, generally designated as vertical ribs 8 and horizontal ribs 9.
  • a flange 10 serving as a nesting stop is provided along the side walls 4, 5 and the location of flange 10 in cooperation with the tapering at the end and side walls permits 3 to 1 nesting of empty containers.
  • ribs 8 and 9, as well as the flange 10 are molded to provide a smooth transition between the side walls and end walls of the container and the projecting portion of the ribs.
  • the ribbing defines openings 11 around the upper part of the container that have smooth transition areas along their peripheries.
  • the structure of the ribs and openings 11 permits the containers to be easily cleaned by jet spray washing or brush cleaning since there are no corners or crevices that permit dirt and contaminants from packing into the openings. As a result, a high degree of cleanliness of the container can be easily maintained.
  • the lids When the containers are to be stacked, rather than nested, the lids are rotated to their closed position.
  • the bottom wall 12 of an upper container that is stacked on a lower container is supported by a recessed mid portion "20 of the lids. Since several of the lids of the containers may be stacked on one another, a substantial load can be placed on the lids of a bottom most container in the stack, which tends to cause the separation of the joint between the lids. In other words, the lids tend to be pulled apart or separated from one another by the weight of the load acting on the mid portion 20 of the lids.
  • the joint between the lids is interlocked by structure that includes one or more fingers 21 that extend outwardly from the mid portion 20 of the lid in combination with recesses or pockets 22 extending between the fingers 21.
  • the free edge or side edge 23 of lid 20 is substantially coincident with the center line 14 of the container so that edges 23 of each of the facing lids abut one another when the lids are in their closed position.
  • Each of the fingers 21 is generally tapered and defined by side edges 211 terminating in an end 212.
  • the side edges are ribbed from the underside of the lid, as shown in Fig. 1 by the dashed lines, and normally tapered toward end 212.
  • end 212 is half of the interlock structure, provided on the lids, which comprises oppositely tapered wedge-shaped side edge portions 213 that together form oppositely tapered end wedge portions 214 that are tapered in the opposite direction with respect to the taper of side edges 211.
  • the wedge shape is created by the side edge portions 213 being cut back with respect to the tapering of the side edges 211, which otherwise would continue to converge toward one another'.
  • the other half of the interlocking structure is provided along the side edges 221 of the pockets 22.
  • side edges 221 V-inwardly toward one another in the direction extending toward the pocket end wall 222, except for side edge portions 223 that flare outwardly therefrom.
  • the side edges 221 together form a flared portion 224 of the pocket that receives the end wedge portion 214 of the fingers. Since the cut-back or wedge-shaped side edges 213 of the fingers 21 are seated within the flared side edge portions 223 of the pockets 22, the fingers are prevented from being pulled away from the pockets by a force tending to separate the joint between the lids that might result from a stacking load placed on the recessed portion 20 of the lids.
  • the wedge-shaped side edges 213 and the flared side edges 223 of the pockets have a matching angle of cut back or recess, respectively, that is preferably 30° with respect to a center line 15 of the container (or a line perpendicular to the side walls 4 and 5 of the container) , with a range of the angle preferably being between 30° and 45°.
  • a steeper or shallower angle may be permitted for the cut-back and flared-out side edge portions 213 and 223, respectively, the 30° angle is preferred from the view point of ensuring smooth interleaving or interdigitating of the fingers 21 during the closing motion of the lids.
  • the angle edges 213, 223 permit smooth seating of the fingers 21 into the pocket 22 during the formation of the joint between the lids. Since users of such lids will open and close the lids many times, thereby breaking and making the joint many"times over, a smooth cooperation between the interlocking parts or structure of the lids is essential.
  • upstanding ribs or protrusions 25 are provided, as shown in Figs. 1 and 4, within the pockets 22. Ribs or protrusions 25 are optional and are provided to abut the inner wall portion 212a of the rib forming ends 212 of the fingers.
  • Adjacent ribs 25 are separated to receive a longitudinally extending rib 26 that extends along the center lines of the fingers, for reinforcement.
  • the ribs 25 abut inner rib walls 212a to assist in preventing separation of the fingers from the pockets.
  • the ribs are not necessary and the interlocking structures 214, 224 are considered to be sufficient to prevent separation of the lids.
  • the container has upper end wall flanges 30 that extend adjacent at least one side of the lids.
  • Each of the flanges 30 has an aperture 31 that aligns with an aperture 27 formed in the return flange 24 of the lid.
  • the aperture 27 in the return flange 24 aligns with the aperture 31 of the upper end wall flange 30 to permit a security tie to be passed therethrough. Since the flanges supporting the security tie apertures 27, 31 extend vertically, and not horizontally, a critical outer dimension of the container can be maintained without interference from the security ties structure.
  • Fig. 6 the lid 2 is shown in a closed position, although only one lid is shown.
  • the return flange 24 of the lid is tapered in the direction toward the hinge axis, and it engages a top edge 60 of the end wall in the closed position.
  • Top edge 60 has a mid portion 61 that is generally parallel to the bottom wall 12 of the container. Extending toward the side walls 4, 5, however, top edge 60 slopes upwardly along a portion 62 that corresponds in slope to the taper of the return flange 24 of the lid 2.
  • the return flange 24, as well as other longitudinally and transversely extending ribs 26 and 29 underlying the lid are reduced in height in a direction extending towards the side walls of the lid. This reduction in rib height and tapering of the return flange reduces the lid flare of shingled lids of a plurality of containers nested together with their lids overlying one another.
  • the sloped portion 62 of the top edge of the end walls supports the similarly tapered return flanges 24 of the lids to reinforce the periphery of the recessed mid portion 20 of the lids.
  • the stacking of containers wherein the bottom wall of an upper stacked container is supported on the recessed mid portion 20 of the lower container creates a stress in the lids not only along the joint, as previously discussed, but also along the periphery of the recessed mid portion.
  • the reinforcement of the periphery of the lids and the engagement of the end edges of the lid with the top edges of the end walls is essential for strength and durability.
  • the sloped portion 62 of the top edge of the end walls fully engages the return flange along the edge of the lid to "ensure an adequate support of the adjacent recessed mid portion 20 even though the height of the ribbing and depth of the return flange is reduced.
  • Fig. 1 contemplates the interlocking structure as comprising three projecting fingers 21 and three corresponding pockets 22, the number of fingers and corresponding pockets can be increased depending upon the overall dimensions of the container and the specific applications to which the attached lid container will be put in use.
  • lid 2* shown in Fig. 7 has one finger 21- and one pocket 22'.
  • Finger 21' has side edges 211- an end edge 212 and wedge shaped side portions 213 that define the end wedge portion 214, as in the . embodiment of the invention shown in Fig. 1.
  • pocket 22 * ⁇ has side edges 221 that V inwardly toward pocket end wall 222 with side edge portions 223 flaring outwardly therefrom to form the reversely tapered or flared portion 224 of the pocket 22'.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Abstract

Récipient (1) à couvercles rapportés comprenant des couvercles (2) qui sont fixés par des charnières sur les bords supérieurs des parois latérales (4, 5) ou des parois terminales (6, 7) du récipient. Lorsque les couvercles sont fermés, les bords libres des couvercles se rejoignent pour former une fermeture qui bloque les couvercles ensemble pour éviter à la fermeture de se séparer. Chaque couvercle comporte au moins une poche (22) et une languette (21) adjacente. La languette comprend une partie (213) de bord latéral rebattue ou en forme de coin et la poche est pourvue d'une partie terminale évasée correspondante qui reçoit la partie terminale rabattue ou en forme de coin, ce système permettant de bloquer la languette d'un couvercle dans la poche du couvercle lui faisant face.
PCT/US1993/002276 1992-03-18 1993-03-18 Recipients comprenant des couvercles rapportes WO1993018975A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US85359192A 1992-03-18 1992-03-18
US07/853,591 1992-03-18

Publications (1)

Publication Number Publication Date
WO1993018975A1 true WO1993018975A1 (fr) 1993-09-30

Family

ID=25316444

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1993/002276 WO1993018975A1 (fr) 1992-03-18 1993-03-18 Recipients comprenant des couvercles rapportes

Country Status (1)

Country Link
WO (1) WO1993018975A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5769230A (en) * 1996-07-11 1998-06-23 Rehrig-Pacific Company, Inc. Stackable and nestable case with hinged cover
EP1652646A3 (fr) * 2004-11-01 2006-06-14 Buckhorn Inc. Procédé de moulage et d'assemblage des deux éléments et récipient avec couvercle à charnière
EP3265745A4 (fr) * 2015-03-04 2018-09-12 Plastpack Defence ApS Boîte de munitions légère
EP3092178B1 (fr) 2014-01-10 2018-12-12 Loadhog Limited Contenant
US11155388B2 (en) * 2017-03-29 2021-10-26 Daniel Kelly Covered storage bin

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3655088A (en) * 1970-06-01 1972-04-11 Theodor Box High-impact plastic carrying and stacking case with hinged cover
US4320845A (en) * 1978-12-07 1982-03-23 Waller John G Collapsible container
US4364489A (en) * 1980-04-28 1982-12-21 Nestier Canada Inc. Container lid
US4432467A (en) * 1982-03-08 1984-02-21 Menasha Corporation Reinforced lid construction for security containers or the like

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3655088A (en) * 1970-06-01 1972-04-11 Theodor Box High-impact plastic carrying and stacking case with hinged cover
US4320845A (en) * 1978-12-07 1982-03-23 Waller John G Collapsible container
US4364489A (en) * 1980-04-28 1982-12-21 Nestier Canada Inc. Container lid
US4432467A (en) * 1982-03-08 1984-02-21 Menasha Corporation Reinforced lid construction for security containers or the like

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5769230A (en) * 1996-07-11 1998-06-23 Rehrig-Pacific Company, Inc. Stackable and nestable case with hinged cover
EP1652646A3 (fr) * 2004-11-01 2006-06-14 Buckhorn Inc. Procédé de moulage et d'assemblage des deux éléments et récipient avec couvercle à charnière
US7841487B2 (en) 2004-11-01 2010-11-30 Buckhorn, Inc. Molded container with hinged lids having a knuckle and pin connection
US7987578B2 (en) 2004-11-01 2011-08-02 Buckhorn, Inc. Method of molding and assembling a container with hinged lids
EP3092178B1 (fr) 2014-01-10 2018-12-12 Loadhog Limited Contenant
EP3265745A4 (fr) * 2015-03-04 2018-09-12 Plastpack Defence ApS Boîte de munitions légère
US10190859B2 (en) 2015-03-04 2019-01-29 Plastpack Defence Aps Lightweight ammunition box
AU2018236832B2 (en) * 2015-03-04 2020-07-09 Plastpack Defence Aps Lightweight Ammunition Box
US11155388B2 (en) * 2017-03-29 2021-10-26 Daniel Kelly Covered storage bin

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