WO2005095235A1 - Systeme de stockage a gravite inversee compact pour palettes - Google Patents

Systeme de stockage a gravite inversee compact pour palettes Download PDF

Info

Publication number
WO2005095235A1
WO2005095235A1 PCT/CA2005/000483 CA2005000483W WO2005095235A1 WO 2005095235 A1 WO2005095235 A1 WO 2005095235A1 CA 2005000483 W CA2005000483 W CA 2005000483W WO 2005095235 A1 WO2005095235 A1 WO 2005095235A1
Authority
WO
WIPO (PCT)
Prior art keywords
cart
carts
wheels
rail
rails
Prior art date
Application number
PCT/CA2005/000483
Other languages
English (en)
Inventor
Yves Fourage
Original Assignee
Developpements Matex 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 Developpements Matex Inc. filed Critical Developpements Matex Inc.
Publication of WO2005095235A1 publication Critical patent/WO2005095235A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G1/00—Storing articles, individually or in orderly arrangement, in warehouses or magazines
    • B65G1/02—Storage devices
    • B65G1/026—Racks equipped with a displaceable load carrying surface to facilitate loading or unloading

Definitions

  • the present invention relates to an improvement in a pushback storing system designed to store large numbers of packages or cartons on racks or shelving by means of pallets.
  • Pushback storing systems have long been sought out by operators of storage warehouses. Its storage principle allows the use of conventional fork lift trucks. The trucks do not penetrate inside the structure, as opposed to drive-in systems, therefore it saves time and the handling of a single pallet for storage or removal does not exceed eight seconds.
  • the surface of a typical warehouse can be divided by two when using a pushback storage system, which is economically important.
  • a compact pushback storage system for storing pallets in rows of shelves defining lanes, the system comprising: a first pair of rails running from front to back in each lane, each rail having inboard and outboard side edges for receiving wheels to roll upon the edges; a first cart having a rectangular shaped frame and a set of front and back wheels on each side mounted to the frame and adapted to roll on the outboard side edge of each rail; a second cart adapted to move along the lane and extending below relative to the first cart, the second cart having a rectangular shaped frame and a set of front and back wheels on each side mounted to the frame and adapted to roll on the outboard side edge of each rail, the back wheels of the second cart being positioned backwards of the front wheels of the first cart; a third cart adapted to move along the lane and extending below relative to the first and second carts, the third cart having a rectangular shaped frame and a set of front and back wheels on each side mounted to the frame and adapted to roll on
  • Figure 1 is a side elevation view of pushback storage system for pallets according to a preferred embodiment of the present invention.
  • Figure 2 is a front elevation view of the four level single column of shelf lanes shown in Figure 1.
  • Figure 3 is a top plan view of a single shelf lane shown in Figure 1 with a series of carts and rails at the front end thereof.
  • Figure 4 is a top plan view of the shelf shown in Figure 3 with the series of carts extended to the back.
  • Figure 5 is a top plan view of the carts shown in Figures 3 and 4 separated for better illustration.
  • Figure 6 is an partial detailed view of the carts and rail shown in Figure 3 inside circle A.
  • Figure 7 is a cross-sectional view of the carts and rail show in Figure 3 taken along line B-B'.
  • Figure 8 is a cross-section view of an alternative design for additional carts and rails, according to a preferred embodiment of the present invention.
  • Figure 9 is a cross-sectional view of another alternative design of carts and rails, according to a preferred embodiment of the present invention.
  • Figure 10 is a partial detailed view of the carts and rail shown in Figure 9 inside circle C.
  • FIG. 1 there is shown a typical set of racks 3 with vertical uprights 4 and structural braces 5 which support a set of four shelves 6.
  • Each shelf 6 is designed to hold up to five cartons or containers 7 supported on pallets ⁇ .
  • These cartons 7 are placed on the shelves 6 by means of a transfer vehicle, such as the fork lift truck 9 illustrated in Figure 1 , which is located in, and travels along corridors between various sets of racks of the type illustrated in Figure 1.
  • a single pallet 8 containing a carton 7 is placed at the front of a lane as illustrated at the second shelf from the bottom.
  • the loading vehicle simply pushes the first pallet backwards, as illustrated in Figure 1 , and deposits the second pallet at the front.
  • a total of five pallets 8 may be installed as shown at the third shelf 6 from the bottom.
  • the first four pallets are pushed successively rearward on the shelf 6 (by means of carts which will be described later) by each subsequent pallet 8, and the last pallet 8 is placed directly on the shelf 6 itself at the front.
  • FIG 2 there is shown a front view of the four shelves 6 that are shown in Figure 1 , with each shelf providing a lane into which five cartons or containers 7 on pallets 8 may be placed. It will be realized that that the single set of five shelves illustrated in Figure 2 would typically be repeated on either side for an indefinite distance so as to provide a bank of shelves, four high, and spaced side by side along a corridor from which the fork lift truck 9 can access the shelves 6.
  • Each shelf 6 is inclined upwardly to the back so that the pallets 8 must to be pushed uphill, against gravity, to the back when they are installed and will roll towards the front by gravity when the foremost pallets 8 are removed.
  • Each shelf 6 carries a pair of inclined rails 20 on which travel the wheels of a series of carts illustrated in Figures 3, 4 and 5.
  • the carts 14, 15, 16, 17 are shown nested together at the front of the shelf to the left of the drawing.
  • the carts 14, 15, 16, 17 are shown extended as they would be spaced in a shelf which is fully loaded, as illustrated at the top in Figure 1.
  • top cart 14, top middle cart 15, bottom middle cart 16, and bottom cart 17 are illustrated separately.
  • the structure of these carts includes a frame of generally rectangular proportions with four legs each having a wheel, as can be seen from the illustrations in Figure 5 and the cross- sectional drawing of Figure 7.
  • the top cart 14 has a rigid frame made of front and back transversal beams 42, 43, which may be rectangular tubes, and side beams 25, which may be orthogonal corner flanges as best shown in Figure 7. Alternatively, the side beams 25 may also be rectangular tubes.
  • the top cart 14 is provided with four legs 35, which may also take the form of rectangular tubes. The legs 35 are positioned near the corners of the cart 14 at the front and back of the side beams 25. Each leg 35 is provided with a wheel 24 as shown in Figure 7.
  • the four wheels 24 have flanges on the inboard sides thereof and are adapted to run along the top of the rail 20 at the outboard edge thereof as illustrated in Figures 4 and 7.
  • the top middle cart 15 has a rigid frame made of front and back transversal beams 40, 41 , which may be rectangular tubes, and side beams 26, which may be orthogonal corner flanges as best shown in Figure 7. Alternatively, the side beams 26 may also be rectangular tubes.
  • the top middle cart 15 is provided with four legs 34, which may also take the form of rectangular tubes. The legs 34 are positioned near the corners of the cart 15 at the front and back of the side beams 26. Each leg 34 is provided with a wheel (not shown).
  • the four wheels of the top middle cart 15 have flanges on the inboard sides thereof and are adapted to run along the top of the rail 20 at the outboard edge thereof as illustrated in Figures 4 and 7.
  • the bottom middle cart 16 has a rigid frame made of front and back transversal beams 38, 39, which may be rectangular tubes, and side beams 27, which may be orthogonal corner flanges as best shown in Figure 7. Alternatively, the side beams 26 may also be rectangular tubes.
  • the bottom middle cart 15 is provided with four legs 33, which may also take the form of rectangular tubes. The legs 33 are positioned near the corners of the cart 16 at the front and back of the side beams 27. Each leg 33 is provided with a wheel 24' as shown in Figure 7.
  • the four wheels 24' have flanges on the inboard sides thereof and are adapted to run along the top of the rail 20 at the inboard edge thereof as illustrated in Figures 4 and 7.
  • the bottom cart 17 has a rigid frame made of front and back transversal beams 18, 37, which may be rectangular tubes, and side beams 28, which may be orthogonal corner flanges as best shown in Figure 7. Alternatively, the side beams 26 may also be rectangular tubes.
  • the bottom cart 17 is provided with four legs 21 , which may also take the form of rectangular tubes. The legs 21 are positioned near the corners of the cart 17 at the front and back of the side beams 28. Each leg 21 is provided with a wheel (not shown).
  • the four wheels of the bottom cart 17 have flanges on the inboard sides thereof and are adapted to run along the top of the rail 20 at the inboard edge thereof as illustrated in Figures 4 and 7.
  • a plate 30 is positioned between leg 21 and side beam 28 so that carts 16, 17 may roll one with respect to the other without coming into collision.
  • a plate 29 is also positioned between leg 33 and side beam 27 so that carts 16, 17 may roll one with respect to the other without coming into collision.
  • a plate 30' is positioned between leg 34 and side beam 26 so that carts 14, 15 may roll one with respect to the other without coming into collision.
  • a plate 29' is also positioned between leg 35 and side beam 25 so that carts 14, 15 may roll one with respect to the other without coming into collision.
  • the leg 33 of cart 16 is longer than leg 21 of cart 17 so that the side beam 27 of cart 16 is above the side beam 28 of cart 17. This allows cart 16 to roll on the rail 20 without touching cart 17.
  • the same principle applies for the other carts.
  • the rail 20 may be made of two orthogonal corner flanges that have enough horizontal dimension to allow the carts 14, 15, 16,
  • Figure 7 also illustrates the relatively low profile of the four carts.
  • Figure 6 illustrates the relative position of frames of the carts in the nested position.
  • a plate 36 that is positioned on the bottom cart 17 ads another safety feature as this forces the loader operator to clear the cart 17 before placing a pallet 8 in the shelf 6.
  • the absence of this plate 36 at the front end also serves to indicate when a lane is full.
  • the plate 36 serves as a stop to prevent a pallet being pulled off when the loader is backed away, or otherwise shifting beyond the front edge of the shelf.
  • Figure 8 illustrates a cross-section of an alternative design which might be used if a shelf was intended to carry more than five pallets deep.
  • An additional rail 32 is used for supporting at least another cart 31.
  • the same principle as described above can be used as those skilled in the art will understand and up to nine pallets may be stored using a pair of additional rails.
  • Figures 9 and 10 illustrate a cross-section of yet another alternative design according to a preferred embodiment of the present invention.
  • This design is similar as the one shown in Figure 7.
  • the main difference is that the rail 20' is made of single piece having the form of an l-shaped beam.
  • the carts 14', 15,' 16', 17' are mounted to this rail 20' by means of wheels in a very similar manner as described above.
  • the carts may provided with screened platforms made of metal, wood or other without making major modifications to the system.
  • the manufacture of the carts may be made by clamp joining the transversal beans onto the side beams without requiring soldering as is required in most know carts presently in the market.
  • the operator of the fork lift truck 9 uses the second pallet 8 to push the first pallet 8, and the first cart 14 on which it rests, rearwardly as illustrated in Figure 1 , until the second pallet securely rests on the top middle cart 15. Subsequently, the other pallets are pushed in the same manner on carts 16, 17. Lastly, the fifth pallet is used to push all four carts rearwardly and the fifth pallet is deposited on the shelf or the rails 20 without any cart beneath it.
  • a more efficient use of warehouse space may be achieved by enabling the storage of containers or cartons on pallets in racks which are five, six, seven or eight levels high and two, three, four, five, six, seven, eight, nine pallet spaces deep.
  • the frames of the respective carts may nest within each other so that the overall head room occupied by the carts is much less than the cumulative height of carts would be if the entire frame of each cart had to pass over or under the next adjacent cart.
  • the carts according to the present invention are designed so that most load pressures are directed toward transversal beams instead of the side beams.
  • a storage system in accordance with the present invention has many of the advantages that wharehouse operators look for: easy to use, reliable and economical to construct, and compact enough to provide significant savings in the volume available for storage space.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Warehouses Or Storage Devices (AREA)
  • Handcart (AREA)

Abstract

Cette invention concerne un système de stockage à gravité inversée compact servant au stockage de palettes en rangées de plates-formes définissant des allées. Le système comprend une première paire de rails s'étendant de l'avant à l'arrière dans chaque allée. Chaque rail comprend des bords latéraux intérieurs et extérieurs servant à recevoir des roues conçues pour rouler sur les bords. Le système comprend un ensemble de quatre chariots comprenant une structure de forme rectangulaire et un ensemble de roues avants et arrières de chaque côté montées sur la structure et conçues pour rouler sur les bords latéraux intérieurs et extérieurs de chaque rail.
PCT/CA2005/000483 2004-03-30 2005-03-30 Systeme de stockage a gravite inversee compact pour palettes WO2005095235A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA 2462929 CA2462929A1 (fr) 2004-03-30 2004-03-30 Systeme de stockage compact pour palettes
CA2,462,929 2004-03-30

Publications (1)

Publication Number Publication Date
WO2005095235A1 true WO2005095235A1 (fr) 2005-10-13

Family

ID=35006233

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2005/000483 WO2005095235A1 (fr) 2004-03-30 2005-03-30 Systeme de stockage a gravite inversee compact pour palettes

Country Status (2)

Country Link
CA (1) CA2462929A1 (fr)
WO (1) WO2005095235A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103144914A (zh) * 2013-03-26 2013-06-12 延锋彼欧（上海）汽车外饰系统有限公司 自动存取设备
CN110963224A (zh) * 2019-12-30 2020-04-07 苏州石川制铁有限公司 一种自动分料系统

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102826317A (zh) * 2012-09-24 2012-12-19 山东大学 动力贯通式货架

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2054903A1 (fr) * 1990-11-05 1992-05-06 Frazier Industrial Company Systemes de casiers de stockage
US5137159A (en) * 1991-02-15 1992-08-11 The Interlake Companies, Inc. Push-back rack
CA2099910A1 (fr) * 1992-07-08 1994-01-09 Donald R. Allen Rayons de stockage
CA1327166C (fr) * 1989-02-16 1994-02-22 Anthony N. Konstant Rayonnage a palettes multiples
US5393188A (en) * 1993-06-15 1995-02-28 Scott; Todd Pallet storage system
CA2312294A1 (fr) * 1999-06-28 2000-12-28 Chad D. Sullivan Systeme d'entreposage par refoulement
CA2336502A1 (fr) * 2000-07-12 2002-01-12 Ridg-U-Rak, Inc. Systeme de stockage vers l'arriere

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1327166C (fr) * 1989-02-16 1994-02-22 Anthony N. Konstant Rayonnage a palettes multiples
CA2054903A1 (fr) * 1990-11-05 1992-05-06 Frazier Industrial Company Systemes de casiers de stockage
US5137159A (en) * 1991-02-15 1992-08-11 The Interlake Companies, Inc. Push-back rack
CA2099910A1 (fr) * 1992-07-08 1994-01-09 Donald R. Allen Rayons de stockage
US5393188A (en) * 1993-06-15 1995-02-28 Scott; Todd Pallet storage system
CA2312294A1 (fr) * 1999-06-28 2000-12-28 Chad D. Sullivan Systeme d'entreposage par refoulement
CA2336502A1 (fr) * 2000-07-12 2002-01-12 Ridg-U-Rak, Inc. Systeme de stockage vers l'arriere

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103144914A (zh) * 2013-03-26 2013-06-12 延锋彼欧（上海）汽车外饰系统有限公司 自动存取设备
CN110963224A (zh) * 2019-12-30 2020-04-07 苏州石川制铁有限公司 一种自动分料系统

Also Published As

Publication number Publication date
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