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US20050274296A1 - Loading ledge - Google Patents

Loading ledge Download PDF

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Publication number
US20050274296A1
US20050274296A1 US11/083,533 US8353305A US2005274296A1 US 20050274296 A1 US20050274296 A1 US 20050274296A1 US 8353305 A US8353305 A US 8353305A US 2005274296 A1 US2005274296 A1 US 2005274296A1
Authority
US
United States
Prior art keywords
loading
loading ledge
ledge
projections
projection
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.)
Abandoned
Application number
US11/083,533
Other languages
English (en)
Inventor
Allan Dickner
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.)
Inter Ikea Systems BV
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 US20050274296A1 publication Critical patent/US20050274296A1/en
Assigned to INTER IKEA SYSTEMS B.V. reassignment INTER IKEA SYSTEMS B.V. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DICKNER, ALLAN
Priority to US12/886,101 priority Critical patent/US8176856B2/en
Abandoned 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
    • B65D19/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D19/02—Rigid pallets with side walls, e.g. box pallets
    • B65D19/06—Rigid pallets with side walls, e.g. box pallets with bodies formed by uniting or interconnecting two or more components
    • B65D19/18—Rigid pallets with side walls, e.g. box pallets with bodies formed by uniting or interconnecting two or more components made wholly or mainly of plastics material
    • 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
    • B65D19/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D19/38—Details or accessories
    • B65D19/385—Frames, corner posts or pallet converters, e.g. for facilitating stacking of charged pallets
    • 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
    • B65D19/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D19/38—Details or accessories
    • 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
    • B65D71/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans or pop bottles; Bales of material
    • B65D71/0088—Palletisable loads, i.e. loads intended to be transported by means of a fork-lift truck
    • B65D71/0092—Palletisable loads, i.e. loads intended to be transported by means of a fork-lift truck provided with one or more rigid supports, at least one dimension of the supports corresponding to a dimension of the load, e.g. skids
    • 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
    • B65D2571/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans, pop bottles; Bales of material
    • B65D2571/00006—Palletisable loads, i.e. loads intended to be transported by means of a fork-lift truck
    • B65D2571/0008—Load supporting elements
    • B65D2571/00086—Feet or isolated supports, not formed by the articles

Definitions

  • the present invention concerns an improved loading ledge to be used e.g. in transport and storing and a system for creation of load units.
  • pallets For transport and storage of different types of goods it is today common to use pallets. Normally wooden pallets of standardized dimensions are used. Often straps and/or stretch or shrink wrapping are wrapped around the pallet including the goods.
  • loading ledges to be placed at the goods.
  • One or more articles are placed on two or more loading ledges to form a unit load.
  • Each loading ledge comprising an L-shaped profile having projections for supporting the unit load at a certain distance over its support.
  • the loading ledges are positioned at a lower edge of the unit load for storage and/or transport of the unit load including its loading ledges to a receiver of the articles.
  • the unit loads are formed, by strapping the loading ledges and the goods. The straps have to be locked with clips or the like to securely hold the goods at the loading ledges.
  • the formed unit load can be handled by handling equipment, such as forklift trucks or pallet trucks, used for handling unit loads on wooden pallets.
  • the loading ledges are preferably produced of recyclable plastic, for example uncoloured polypropylene (PP).
  • PP polypropylene
  • the production method may be injection moulding. Other materials and production techniques are possible.
  • the loading ledges may be returned for renewed use on new unit loads, but it may be advantageous to recycle them, for example by grinding them, and to return the material to a producer of loading ledges.
  • the material can be put on the ordinary market as plastic raw material. In the latter case it is of special importance to have the plastic material uncoloured.
  • loading ledges as set out above it will be possible to use one size only for all applications.
  • the size of the unit load is not dependent on any pallet size but rather on the size of the articles, provided at their bottom edges with two or more loading ledges with downwardly extending projections allowing handling by traditional handling equipment. If the articles are long, two or even three loading ledges may be provided at each lower edge.
  • loading ledges means in other words that an optimal unit load may be built according to the goods or articles, not according to the pallet size as today.
  • Empty loading ledges may be stacked for transportation, which thus may be very effective.
  • straps are normally used to hold the goods. Said straps are to be locked with clips or the like. Even if existing clips function well in many respects, they are loose, discrete elements, which should be at hand when needed. Furthermore, it is a risk that the prior art clips or other locking means for the straps harm goods placed on adjacent pallets, as the locking means normally are placed in varying positions. Depending on the goods such damages may be serious.
  • Such objects are e.g. having as low weight as possible, in order to reduce the amount of material used and, thus, to save costs. It is also a general object to be able to produce the products in a simple and reliable way to reduce costs.
  • the loading ledge should be easy to use.
  • the loading ledges should be possible to stack, in order to facilitate transport and storing.
  • a loading ledge having an upper leg and a lower leg forming a substantially L-shaped cross section is formed.
  • the lower leg of the loading ledge is furnished with one or more projections.
  • One or more locking means are integrated in the loading ledge.
  • loading ledges according to the present invention for creation of unit loads instead of pallets of a standard dimension the goods it is normally possible to store the goods more compactly.
  • the total available loading areas are often not used, unless the size of each item of the goods is adapted to the size of the pallets.
  • the loading ledges of the present invention are lower than most standard pallets, increasing the possibility to fully use the available space in containers, trucks, lorries, warehouses etc. Loading ledges according to the present invention are automatically adapted to the dimensions of the unit loads.
  • the weight of the loading ledges are kept as low as possible by providing it with a number of openings, without jeopardising the function.
  • the low weight is beneficial both concerning transport and in that less material is needed to produce each loading ledge.
  • FIG. 1 is a perspective view of a loading ledge according to the present invention
  • FIG. 2 is a front view of the loading ledge of FIG. 1 ;
  • FIG. 3 is an end view of the loading ledge of previous Figs;
  • FIG. 4 shows different examples of unit loads formed using the loading ledges of FIGS. 1 to 3 ;
  • FIG. 5 is a perspective view of a loading ledge according to the invention furnished with an adapter
  • FIG. 6 is a perspective view of an adapter set used in the embodiment of FIG. 5 ;
  • FIG. 7 is a perspective view of an alternative adapter to be attached to the loading ledge of FIGS. 1 to 3 .
  • the present invention concerns loading ledges 1 to be used in transport and storing of goods 19 .
  • the loading ledges 1 comprises a lower leg 2 and an upper leg 4 , which legs 2 , 4 are arranged almost perpendicular to each other.
  • the loading ledge 1 will have a substantially L-shaped cross section.
  • the loading ledge 1 is preferably an injection moulded, L-shaped profile of recyclable plastic, preferably polypropylene (PP).
  • Its lower leg 2 is provided with projections 3 , in the shown case three projections, for supporting a unit load above the ground or other support.
  • the projections 3 make it possible to handle the unit load with ordinary handling equipment utilised for goods on ordinary wooden pallets presently widely used in distribution systems.
  • the upper leg 4 of the loading ledge 1 is generally plain and is to bear against a vertical side surface of a unit load to be supported by the loading ledges.
  • At least the free or outer end of the lower leg 2 i.e. the part outside the projections, is slightly inclined upwards.
  • slightly inclined as used here is meant a few degrees or even parts of degree.
  • the upper leg 4 and lower leg 2 of the loading ledge 1 are slightly inclined towards each other. Thereby, and by the fact that the outer end of the lower leg 2 inclines slightly upwards the loading ledge 1 will be held snugly against the goods in use.
  • unit load includes the loading ledges 1 , the goods 19 received on two or more loading ledges 1 and stretching devices, such as straps 14 .
  • a number of locking means or clips 5 are arranged in the upper leg 4 .
  • the clips 5 are arranged in openings 6 of the upper leg 4 .
  • the openings 6 are to receive the straps 14 .
  • the clips 5 are integrated parts of the upper leg 4 and are each formed of a frame 16 and two foldable parts 17 .
  • the foldable parts 17 are in one embodiment releasably fixed to the frame 16 by means of weakenings, which are easy to break by hand. In other embodiments the ends of the foldable parts 17 remote from the frame 16 are totally free, i.e. not fixed to the loading ledge 1 .
  • the straps 14 may be locked. In use the foldable parts are folded at the transition between each foldable part 17 and the associated frame 16 .
  • clips 5 and openings 6 there are four clips 5 and openings 6 .
  • the clips as shown are only one example. The exact design of the clips 5 may vary as long as they fulfil the intended use.
  • weight-reducing openings 15 are normally furnished in the loading ledge 1 .
  • Said further openings 15 are made mainly to save weight and to reduce the amount of material used. These weight-reducing openings 15 are placed to not impair the strength of the loading ledge 1 at normal use.
  • the openings 15 are normally placed in the upper leg 4 of the loading ledge 1 .
  • the weight-reducing openings 15 may be placed anywhere as long as they do not jeopardise the function of the loading ledge 1 .
  • the number and size of the weight-reducing openings 15 may vary. In one loading ledge openings of different sizes may be arranged.
  • the projections 3 have inclined sides to assist in stacking of a number of loading ledges 1 in each other.
  • the side of each projection 3 placed more or less in line with the upper leg 4 of the loading ledge 2 has normally no inclination.
  • the sides of each projection 3 facing the adjacent projections 3 and the short ends of the loading ledges 1 have an inclination of an angle ⁇ in relation to the horizontal plane.
  • the angle ⁇ is normally between 50° and 70°, preferably between 60° and 70° and is most preferably 66.4°.
  • the side of each projection 3 facing forward, i.e. closest to the outer end of the lower leg 2 has an inclination of an angle ⁇ in relation to the horizontal plane.
  • the angle ⁇ is normally between 40° and 60°, preferably between 45° and 55° and most preferably 52°.
  • the dimension of the projection 3 placed in the middle is normally somewhat larger than the dimensions of the other projections 3 .
  • the bottom of the projections 3 may have a number of small irregularities.
  • the areas of small irregularities are referred to as friction patterns in this description.
  • friction patterns 18 are provided on the upper side of the lower leg 2 . These friction patterns 18 are to assist in holding the goods more safely on the loading ledges 1 . A person skilled in the art realises that the exact form and position of the friction patterns 18 may vary. Also the form of the irregularities of the friction patterns 18 may vary.
  • the overall length of the loading ledge 1 is about 759 mm
  • the widths of the lower leg 2 and the upper leg 4 is about179 mm and about 100 mm, respectively.
  • the projections 3 have a height of about 45 mm and a width of about 50 mm at the bottom.
  • the central projection has a length of about 120 mm at the bottom, and each of the two outer projections have a length of about 50 mm at the bottom.
  • the size of the contact areas formed by the bottom areas of the projections 3 is important in order to have enough friction against the support. Due to the dimensions and angles of the projections the distance between adjacent loading ledges 1 when stacked is about 3 mm. This means that the loading ledges 1 , when not in use, may be stacked in an easy and space-saving manner, which is beneficial for storage and possible transport of the loading ledges 1 .
  • the height of the projections 3 and the distance between the projections 3 are adapted to the handling equipment used.
  • handling equipment includes forklift trucks, pallet trucks etc.
  • the distance between the projections 3 is chosen to allow for normal adjustment of the distance between the forks. Thus, the forks will normally not harm the projections 3 .
  • the loading ledges 1 of the present invention are developed for handling equipment having relatively thin forks.
  • the distance from the ground or other support to the bottom of the lower leg 2 is about 45 mm.
  • Much of the handling equipment on the market today has a smallest distance between the support and the upper side of the forks of about 85 mm. Thus, such handling equipment cannot be used with standard loading ledges 1 .
  • adapters 7 , 12 have been developed for placement on the projections 3 .
  • Said adapters 7 , 12 give a total distance from the ground or other support to the bottom of the lower leg 2 of about 90 mm.
  • a person skilled in the art realises that by the use of adapters 7 , 12 any suitable distance may be formed if needed due to the dimensions of the handling equipment used.
  • an adapter set 7 is formed.
  • the adapter set 7 comprises a board 9 and three adapters 8 , 11 . Normally the board 9 and adapters 8 , 11 are integrally formed.
  • the adapters 8 , 11 as shown have different sizes adapted to the sizes of the projections 3 .
  • On top of each adapter 8 , 11 a peg 10 is formed.
  • the purpose of the peg 10 is that it should be received in an opening in the bottom of corresponding projection 3 .
  • the connection between the peg 10 and opening of the projection is preferably of the type having a snapping effect. To reach said snapping effect the peg 10 may be furnished with a groove, receiving the edge of the opening of the projection 3 .
  • a person skilled in the art realises that the connection between peg 10 and opening may be accomplished in many different ways. Thus, it is possible to have a press fit between the peg 10 and the opening, in which case no groove is needed on the peg 10 .
  • the adapters 12 may also be discrete elements for placement on each projection 3 . Also these discrete adapters 12 have pegs 10 to be received in an opening of the projection 3 in the same way as stated above, regarding the adapter set 7 . Normally, the size of each adapter 12 is adapted to the size of the projection 3 on which it is to be placed. However, it is also possible to have adapters 12 of only one size, irrespectively of the size of the projections 3 . In this latter case the size of the adapters 12 is adapted to the size of the smallest projection 3 .
  • the loading ledges 3 and adapters 7 , 10 are stored separately, i.e. not with the adapters 7 , 10 attached to the loading ledges 1 .
  • At least two loading ledges 1 are placed at the bottom of the goods 19 .
  • the two loading ledges 1 are placed at opposite sides of the goods 19 .
  • Different types of load units formed by means of the loading ledges 1 are indicated in FIG. 4 .
  • the straps 14 are drawn through both the openings 6 adjacent the clips 5 and the frames 6 of the clips 5 in the upper leg 4 . As is normal for this type of clips 5 the grip will become more firm the more the strap 14 is pulled.
  • edge protection 13 is placed under the strap 14 at the edges of the goods 19 . This is especially important if the goods 19 are one or more cardboard boxes or the like susceptible to damage by the strap 14 , as the strap 14 is tightened. It is also possible to integrate clips 5 or other locking means in each edge protection 13 . The form and function of the clips 5 in the edge protection 13 is the same as for the clips 5 integrated in the loading ledges 1 . A person skilled in the art realises that also edge protections 13 having no clips or other locking means for the straps may be used.
  • the clips harm goods on adjacent pallets during transport or storage.
  • the clips are normally placed randomly, which means that they may adhere directly on goods on adjacent pallets. If the goods are cardboard boxes they are susceptible to damages.
  • the clips 5 will be positioned aligned with clips 5 on adjacent unit loads. Thus, the contact between adjacent unit loads will be at the clips 5 . Thereby the risk of harming the goods during transport or storage is reduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pallets (AREA)
  • Stackable Containers (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Packages (AREA)
  • Packaging Of Machine Parts And Wound Products (AREA)
  • Buffer Packaging (AREA)
  • Handcart (AREA)
US11/083,533 2002-09-18 2005-03-18 Loading ledge Abandoned US20050274296A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/886,101 US8176856B2 (en) 2002-09-18 2010-09-20 Loading ledge

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0202779A SE524498C2 (sv) 2002-09-18 2002-09-18 Lastlist och system för att bilda lastenheter
SE0202779-5 2002-09-18

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2003/001437 Continuation WO2004026713A1 (en) 2002-09-18 2003-09-15 A loading ledge

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/886,101 Continuation US8176856B2 (en) 2002-09-18 2010-09-20 Loading ledge

Publications (1)

Publication Number Publication Date
US20050274296A1 true US20050274296A1 (en) 2005-12-15

Family

ID=20289038

Family Applications (2)

Application Number Title Priority Date Filing Date
US11/083,533 Abandoned US20050274296A1 (en) 2002-09-18 2005-03-18 Loading ledge
US12/886,101 Expired - Fee Related US8176856B2 (en) 2002-09-18 2010-09-20 Loading ledge

Family Applications After (1)

Application Number Title Priority Date Filing Date
US12/886,101 Expired - Fee Related US8176856B2 (en) 2002-09-18 2010-09-20 Loading ledge

Country Status (35)

Country Link
US (2) US20050274296A1 (sv)
EP (1) EP1539597B1 (sv)
JP (1) JP4361871B2 (sv)
KR (1) KR101067255B1 (sv)
CN (1) CN100398405C (sv)
AR (1) AR041216A1 (sv)
AT (1) ATE359970T1 (sv)
AU (1) AU2003261049B2 (sv)
BR (1) BRPI0314123A2 (sv)
CA (1) CA2499057C (sv)
DE (1) DE60313335T2 (sv)
DK (1) DK1539597T3 (sv)
EG (1) EG24624A (sv)
ES (1) ES2287566T3 (sv)
HK (1) HK1081502A1 (sv)
HR (1) HRP20050249B1 (sv)
IS (1) IS2105B (sv)
LT (1) LT5287B (sv)
LV (1) LV13318B (sv)
MA (1) MA27437A1 (sv)
MX (1) MXPA05002929A (sv)
MY (1) MY134580A (sv)
NO (1) NO328568B1 (sv)
NZ (1) NZ538858A (sv)
PL (1) PL201491B1 (sv)
PT (1) PT1539597E (sv)
RS (1) RS50840B (sv)
RU (1) RU2326793C2 (sv)
SE (1) SE524498C2 (sv)
SI (1) SI1539597T1 (sv)
TN (1) TNSN05071A1 (sv)
TW (1) TWI289130B (sv)
UA (1) UA84408C2 (sv)
WO (1) WO2004026713A1 (sv)
ZA (1) ZA200502322B (sv)

Cited By (6)

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US20060243175A1 (en) * 2002-06-11 2006-11-02 Airdex International, Inc. Method of making a dunnage platform
US20070191984A1 (en) * 2006-02-15 2007-08-16 Airdex International, Inc. Light weight, strong, fire retardant dunnage platform bag and system of loading, dispensing and using bag
USD551424S1 (en) * 2004-04-30 2007-09-18 Inter Ikea Systems B.V. Loading ledge device with friction surface
US7963397B2 (en) 2006-02-09 2011-06-21 Seagle Vance L Modular, knock-down, light weight, thermally insulating, tamper proof shipping container and fire retardant shipping container bag
US10287054B2 (en) 2014-06-25 2019-05-14 Airdex Corporation Load bearing structure
US20220161966A1 (en) * 2019-04-07 2022-05-26 Norman H. Gordon Pallet repair system and methods for manufacture

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE526550C2 (sv) * 2003-11-05 2005-10-04 Inter Ikea Systems Bv Fixtur för lastlist
SE0401138L (sv) * 2004-04-30 2005-10-31 Inter Ikea Systems Bv Arrangemang vid en lastlist
SE528003C2 (sv) 2004-04-30 2006-08-01 Inter Ikea Systems Bv Plattform att användas som stöd för varor
WO2006136547A1 (en) * 2005-06-21 2006-12-28 Inter Ikea Systems B.V. Method of forming a unit load
NL2001972C (nl) * 2008-09-10 2010-03-15 Hendrik Schram Inrichting en werkwijze voor het tillen van een last.
JP5863621B2 (ja) * 2012-10-22 2016-02-16 株式会社明治ゴム化成 運搬用支持台
US20210284411A1 (en) * 2016-09-08 2021-09-16 Yoshikawa Kasei Co., Ltd. Simplified pallet
USD913020S1 (en) 2018-12-21 2021-03-16 Obayashi Corporation Bearer
USD894645S1 (en) 2018-12-21 2020-09-01 Obayashi Corporation Bearer
US11077985B2 (en) * 2018-12-21 2021-08-03 Obayashi Corporation Mounting base member, mounting base, and mounting method
US11840371B2 (en) 2019-03-29 2023-12-12 Pallet Technologies, Llc Configurable pallet

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US8176856B2 (en) 2012-05-15
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