EP0304224A2 - Caisses permettant leur empilement interverrouillé - Google Patents

Caisses permettant leur empilement interverrouillé Download PDF

Info

Publication number
EP0304224A2
EP0304224A2 EP88307422A EP88307422A EP0304224A2 EP 0304224 A2 EP0304224 A2 EP 0304224A2 EP 88307422 A EP88307422 A EP 88307422A EP 88307422 A EP88307422 A EP 88307422A EP 0304224 A2 EP0304224 A2 EP 0304224A2
Authority
EP
European Patent Office
Prior art keywords
crate
projections
crates
side walls
notches
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.)
Withdrawn
Application number
EP88307422A
Other languages
German (de)
English (en)
Other versions
EP0304224A3 (fr
Inventor
Uri Levy
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0304224A2 publication Critical patent/EP0304224A2/fr
Publication of EP0304224A3 publication Critical patent/EP0304224A3/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • B65D21/00—Nestable, stackable or joinable containers; Containers of variable capacity
    • B65D21/02—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together
    • B65D21/0235—Containers stackable in a staggered configuration

Definitions

  • the present invention concerns crates for the transport of goods such as agricultural products, bottles, and the like, and more particularly such crates provided with mutual interlocking means to safeguard against lateral sliding of one layer of crates relative to an underlying or overlying layer when the crates are piled in superimposed position.
  • Piling of crates may be either in a fully overlapping relative position whereby the bottom of one overlying crate rests on, and is received by, the upper rim of an underlying crate, or in a partly overlapping fashion known in the art as "bonded brick-stacking".
  • the downward depending bottom rim is substantially stronger than the upper rim, forming actually an extension of the crate bottom.
  • the upper rim is inherently weaker and fully depends on the profile measurements and the strength of the material of which it is made. Now, since a uniform wall width is always kept when plastic injection molding is employed, the upper rim width, determined by strength considerations, dictates the measurements of the remaining crate portions. This entails a considerably waste of material.
  • both the lower and the upper rims are of substantially the same reduced strength, i.e. of inherently insufficient mechanical resistance to bending when substantial lateral forces are applied. Such forces are likely to appear during transportation of the stacked crates, in whatever configuration or relationship, when the transporting vehicle jerks or stops abruptly. Accordingly, again a crate of a substantial weight must be produced, and, in fact, commercially available crates weigh as much as 1.4 Kg.
  • interlocking means will act not only in a direction perpendicular to the direction of the lateral forces, but also in a direction parallel to such force or forces.
  • the invention is particularly useful in relation to collapsible crates in terms of saving special and costly strengthening of the lower and/or of the upper rims; in this context, and according to another aspect of the invention, it is proposed to provide the bottom rim, at its inside, with tapering or funnel-shaped cavities into which complementary profiled extensions or projections formed in the bottom wall of the crate -- which is to be assembled to erect the crate -- so that the combined effect of the extension and cavity is to tighten the sidewalls against the bottom wall under the weight to which the bottom wall is subjected.
  • the greater the weight the more closely will the bottom wall become tighened against its frame, on the one hand, and on the other hand the assembly of the crates by the insertion of the bottom wall thereinto is greatly facilitated compared with other, conventional arrangements.
  • an open-top crate for palletizing particularly in a bonded brick-stacking relationship, comprising a rectangular bottom, two long side walls and two short side walls, an upper rim extending around the open top and a lower rim extending around the bottom of the crate, the rims being configured to become received one within the other when the crates are in an overlapping stacked position, characterized by a series of notches formed in one of the said rims; a series of lateral projections formed in the other of the rims; and the distances between the said notches and the distances between the said projections, respectively, being such that the crates are adapted to be piled either in an overlapping relationship whereby all projections of an overlaying crate become received by respective notches of an underlying crate, or in a non-overlapping, brick-stacking relationship, whereby at least one of at least two adjacent sides of each one of the projections of every overlying crate
  • the crate is foldable with hinged side walls and a separate bottom, at least two opposite side walls are provided with tapered sockets, and the bottom wall is provided with downward projecting tongnes adapted to fit into the said sockets and inpair an inward directed force when the bottom is loaded.
  • Fig. 1 illustrates the arrangement of crates generally indicated A piled-up for transportation of a pallet B.
  • the arrangement of crates A in a pattern of "four plus three" in such a non-overlapping arrangement -- is known in the art as "the bonded brick-stacking" relationship. While the crates A are shown as being of solid, plastic injection structure, this arrangement applies as well to the collapsible design of crates as will be described in more detail below.
  • the crates are rectangular having short side walls C, long side walls B and a bottom wall or platform E.
  • each crate has an upward directed rim F associated with its respective side wall and surrounding the open top of the crate.
  • the rim consists of a projecting rib whose outer surface coincides with the outer surface of the respective side wall.
  • a shoulder G is formed inside and all along the rim F.
  • the upper rim F is discontinued by a plurality of notches, cutouts or recesses II, preferably with convergent sides H1 and H2.
  • Similar notches H′ i.e. of an inverted trapezoid shape, are formed at the four corners of the upper rim F.
  • the spacing of the notches H is determined according to certain considerations which will be explained further below.
  • two equidistant notches are formed in the rim of the long side walls D and one, centrally-located notch H is formed in the rim associated with the short side wall C.
  • an elongated, downward projecting rim I is provided, however somewhat distanced from the plane defined by the respective outer surface of the crate of side wall.
  • the rim I is provided with sidewise directed projections J, of an outer profile corresponding to the profile of the notches H, and in vertical alignment therewith.
  • the rims I are discontinued at the corners of the bottom forming spaces K, as shown.
  • a second factor is introduced according to the design proposed by the present invention, namely, the resistance of the two projections J seated within the respective notches H along the long side D of the crate, i.e. in a direction parallel to the applied forces.
  • the projections -- or the intermediate ribs F -- must in fact become torn off depending on the relative strengths of these components, before relative displacement of the crates can take place.
  • the interlocking means will act not only in the direction perpendicular to the applied thrust or lateral forces (along the short sides of the crate) but also parallel to the forces, namely along the long sides of the crates.
  • the invention is particularly useful in connection with collapsible or foldable crates.
  • Foldable crates are generally known -- e.g. U.S. Patent No. 4,491,231.
  • the design of the projection J associated with the lower rim I is advantageously formed in the manner to be described in more detail below, such design being facilitated by separate production of each of the long side wall and of the short side walls by plastic injection molding.
  • the short side wall C of the crate mainly comprises a pattern of honeycomb profile denoted 10. This pattern was selected not only for its strength, but also because it is less prone to the accumulation of dirt at its corners, which are mostly of obtuse angles.
  • the projection J consists of a cavity 14 defined within outward projecting ribs 16a and 16b, directed at an angle with respect to each other, to form the tapering or oblique configuration of the projection J, and a bottom rib 18.
  • An array of hinge support ears 22 is provided at both sides of the wall for cooperation with hinge rods 24 (Fig. 2).
  • Opening 26 is left the honeycomb pattern 10 to serve as a handle for the assembled crate.
  • a pair of socket-like projections 30 comprising a T-shaped profile 32 (Fig.13) which defines a pair of pocket-like spaces 34 at both its sides.
  • Wall 36 at the front side of the socket 30 extends at an acute angle with respect to the vertical.
  • the function of the sockets 30 formed at the long side wall, and the respective profiled sections 44 formed at the bottom wall, is to provide self-locking, self-tightening engaging means between the bottom wall and the long side walls.
  • the extensions 44 with the associated portions of the rib 40 are inserted into the pockets 30, and rest against the tapering wall section 36.
  • This arrangement is advantageous in the following two respects: First, there is enough freedom for the positioning of the protrusions 44 into the sockets 30, even in the case -- as frequently happens -- that the side wall is somewhat distorted and thus does not follow an exact straight plane; secondly, the more force or weight applied to the bottom as a whole -- the greater will be the force that attracts the respective side wall bottom portions against the edge of the bottom wall, due to the inclined direction of the socket wall 36. Therefore, the risk of accidental release of the bottom wall from the side walls is greately reduced.
  • Fig. 21 shows the crate in its folded-down position; it is self-explanatory and need not be further described.
  • the crate design as so far described features important advantages over the conventional containers of similar type and use.
  • the special design of the interlocking means assures safer stacking of the crates in both the overlapping and the non-overlapping configuration, without increasing manufacturing cost.
  • the saving of material in the production of crates according to the invention may reach up to 50%, without affecting whatsoever the mechanical strength and load capacity of the crate, all other factors being equal (such as the quality of the plastic material being used).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Stackable Containers (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
EP88307422A 1987-08-17 1988-08-11 Caisses permettant leur empilement interverrouillé Withdrawn EP0304224A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL83575A IL83575A (en) 1987-08-17 1987-08-17 Crates for piling in an interlocked manner
IL83575 1987-08-17

Publications (2)

Publication Number Publication Date
EP0304224A2 true EP0304224A2 (fr) 1989-02-22
EP0304224A3 EP0304224A3 (fr) 1989-12-20

Family

ID=11058090

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88307422A Withdrawn EP0304224A3 (fr) 1987-08-17 1988-08-11 Caisses permettant leur empilement interverrouillé

Country Status (3)

Country Link
EP (1) EP0304224A3 (fr)
AU (1) AU613651B2 (fr)
IL (1) IL83575A (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0698558A3 (fr) * 1994-08-24 1997-06-11 Schoeller Plast Ag Récipient de transport empilable
EP0928745A2 (fr) * 1995-07-26 1999-07-14 McKechnie U.K. Limited Conteneur repliable empilable
WO2010098729A1 (fr) * 2009-02-27 2010-09-02 Ay Kasa Polimer Ambalaj Ve Tasima Sistemleri Sanayi Ticaret A.S. Mini-conteneur de transport à l'intérieur d'un conteneur de transport
CN109956133A (zh) * 2019-03-11 2019-07-02 湖南省共托物流设备租赁有限公司 包装箱
CN110844251A (zh) * 2019-12-04 2020-02-28 江苏飞力达国际物流股份有限公司 柔性周转料箱
US11884456B2 (en) 2020-09-25 2024-01-30 Techtronic Cordless Gp Tool storage system

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3254786A (en) * 1964-04-29 1966-06-07 John B Melville Folding carrying case
US3355054A (en) * 1966-05-23 1967-11-28 Banner Metals Inc Stackable-nestable container
DE1486229A1 (de) * 1963-08-16 1969-04-17 Theodor Box Tragekasten aus Kunststoff
US3568879A (en) * 1969-03-04 1971-03-09 Theodor Box Plastic stacking and transport case
GB1409046A (en) * 1971-10-13 1975-10-08 Gpg Holdings Ltd Containers
AU7616774A (en) * 1974-01-31 1976-06-10 Viscount Plastic Products Pty. Ltd. Container
FR2292631A1 (fr) * 1974-11-26 1976-06-25 Toulpac Sa Caissette perfectionnee susceptible d'etre gerbee
DE2814844A1 (de) * 1978-04-06 1979-10-18 Jun Henk Reinders Kunststoff-faltkiste
US4491231A (en) * 1983-05-13 1985-01-01 Family Distributors, Inc. Collapsible case

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1486229A1 (de) * 1963-08-16 1969-04-17 Theodor Box Tragekasten aus Kunststoff
US3254786A (en) * 1964-04-29 1966-06-07 John B Melville Folding carrying case
US3355054A (en) * 1966-05-23 1967-11-28 Banner Metals Inc Stackable-nestable container
US3568879A (en) * 1969-03-04 1971-03-09 Theodor Box Plastic stacking and transport case
GB1409046A (en) * 1971-10-13 1975-10-08 Gpg Holdings Ltd Containers
AU7616774A (en) * 1974-01-31 1976-06-10 Viscount Plastic Products Pty. Ltd. Container
FR2292631A1 (fr) * 1974-11-26 1976-06-25 Toulpac Sa Caissette perfectionnee susceptible d'etre gerbee
DE2814844A1 (de) * 1978-04-06 1979-10-18 Jun Henk Reinders Kunststoff-faltkiste
US4491231A (en) * 1983-05-13 1985-01-01 Family Distributors, Inc. Collapsible case

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0698558A3 (fr) * 1994-08-24 1997-06-11 Schoeller Plast Ag Récipient de transport empilable
EP0928745A2 (fr) * 1995-07-26 1999-07-14 McKechnie U.K. Limited Conteneur repliable empilable
EP0928745A3 (fr) * 1995-07-26 1999-08-18 McKechnie U.K. Limited Conteneur repliable empilable
WO2010098729A1 (fr) * 2009-02-27 2010-09-02 Ay Kasa Polimer Ambalaj Ve Tasima Sistemleri Sanayi Ticaret A.S. Mini-conteneur de transport à l'intérieur d'un conteneur de transport
CN109956133A (zh) * 2019-03-11 2019-07-02 湖南省共托物流设备租赁有限公司 包装箱
CN110844251A (zh) * 2019-12-04 2020-02-28 江苏飞力达国际物流股份有限公司 柔性周转料箱
US11884456B2 (en) 2020-09-25 2024-01-30 Techtronic Cordless Gp Tool storage system

Also Published As

Publication number Publication date
AU613651B2 (en) 1991-08-08
IL83575A (en) 1992-06-21
EP0304224A3 (fr) 1989-12-20
IL83575A0 (en) 1988-01-31
AU1978888A (en) 1989-02-23

Similar Documents

Publication Publication Date Title
CA2537563C (fr) Boitier de rangement d'articles
CA1162863A (fr) Palette d'expedition, et emballage connexe
US4775068A (en) Collapsible container with removable access panel
EP1189814B1 (fr) Système de conteneurs empilables
US5671857A (en) Collapsible container
US4674647A (en) Collapsible storage bin
US3889834A (en) Container construction
SK279374B6 (sk) Prepravka z plastu, najmä prepravka na zeleninu so
CA1246470A (fr) Recipient de stockage pliant
CZ296665B6 (cs) Prepravní kontejner
EP0304224A2 (fr) Caisses permettant leur empilement interverrouillé
US5699914A (en) Nestable container
CA2136554C (fr) Conteneur demontable
US5156288A (en) Foldable crates
US3722735A (en) Stackable and nestable container
JP4689069B2 (ja) 折り畳みコンテナ
JPH0356507Y2 (fr)
JPH0739789Y2 (ja) 折りたたみコンテナー
JPH08207936A (ja) 運搬用容器
WO1998004467A1 (fr) Caisses a dispositif d'empilage integre
JP2753454B2 (ja) 運搬用収納容器
JP2001171677A (ja) 運搬用容器
JPH0120273Y2 (fr)
EP0668220A1 (fr) Casier destiné à former une pile
JPH08506788A (ja) 返却可能な梱包システム

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE ES FR GB IT SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE ES FR GB IT SE

17P Request for examination filed

Effective date: 19900426

17Q First examination report despatched

Effective date: 19910930

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19920309