US20070144991A1 - Telescopic load-carrying device and method for the operation thereof - Google Patents

Telescopic load-carrying device and method for the operation thereof Download PDF

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Publication number
US20070144991A1
US20070144991A1 US10/583,749 US58374904A US2007144991A1 US 20070144991 A1 US20070144991 A1 US 20070144991A1 US 58374904 A US58374904 A US 58374904A US 2007144991 A1 US2007144991 A1 US 2007144991A1
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United States
Prior art keywords
load
bearing means
guide
means according
top table
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Abandoned
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US10/583,749
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English (en)
Inventor
Rudolf Hansl
Josef Reischl
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TGW Mechanics GmbH
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TGW Transportgeraete GmbH
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Publication date
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Assigned to TGW TRANSPORTGERATE GMBH reassignment TGW TRANSPORTGERATE GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: REISCHL, JOSEF, HANSL, RUDOLF
Publication of US20070144991A1 publication Critical patent/US20070144991A1/en
Assigned to TGW MECHANICS GMBH reassignment TGW MECHANICS GMBH CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: TGW TRANSPORTGERATE GMBH
Abandoned legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/12—Platforms; Forks; Other load supporting or gripping members
    • B66F9/14—Platforms; Forks; Other load supporting or gripping members laterally movable, e.g. swingable, for slewing or transverse movements
    • B66F9/141—Platforms; Forks; Other load supporting or gripping members laterally movable, e.g. swingable, for slewing or transverse movements with shuttle-type movement
    • 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
    • B65G1/04—Storage devices mechanical
    • B65G1/0407—Storage devices mechanical using stacker cranes

Definitions

  • Document DE 42 05 856 A1 discloses a device for bearing loads, with a telescopic load-bearing means comprising a bottom part, a top part provided in the form of a slide and supports disposed in between.
  • the supports and the top part can be displaced in a plane parallel with a support surface for the load relative to one another and with respect to the bottom part in roller guides.
  • the supports have longitudinally extending guide grooves in which the guide rollers rotatably mounted on the bottom part and on the slide run.
  • a frictional or non-positive driving connection is also produced by friction gears or toothed gears rolling on friction surfaces or toothed racks of the top part and bottom part, which are mounted so as to rotate loosely on the supports.
  • a drive connection of this type enables the top part to be displaced depending on the displacement of the supports by means of a single drive acting between the bottom part and the slide.
  • Document DD 74 496 discloses a load-bearing means for stacking devices, shelf-stacking devices or similar, which is of a telescopic design and has a telescopic rail between a bottom part and a top part with longitudinally oriented guide grooves for accommodating guide rollers rotatably mounted on the top part and on the bottom part and which enable the parts to be displaced and guided relative to one another.
  • a drive system comprises a gear-toothed rack system for driving the telescopic rail relative to the bottom part.
  • a transmission system for displacing the top part in relation to the displacement of the telescopic rails with respect to the bottom part is provided in the form of gears, rotatably mounted in the telescopic rail and in the bottom part, and toothed racks disposed in the top part which mesh with one another.
  • Document U.S. Pat. No. 4,458,808 A discloses another telescopic table used as a load-bearing means with a stationary frame and an intermediate frame which can be displaced linearly relative to it in roller systems and a top table which can be displaced relative to it in roller systems.
  • a drive system in the form of a chain and sprocket wheel is provided between the stationary frame and the intermediate frame.
  • strand-shaped transmission means in the form of chains are disposed in a complementary arrangement between anchoring means on the top table and stationary frame and sprocket wheels rotatably mounted on the intermediate frame. The complementary disposition enables the top table to be moved at both ends depending on the relative movement between the stationary frame and the intermediate frame.
  • a chain and sprocket wheel with a reversible drive motor is provided on the support frame and the drive connection for displacing the top carriage depending on the relative movement between the support frame and the middle carriage is provided in the form of strand-shaped transmission means running in a complementary arrangement and preferably provided in the form of cogged belts, each with fixed anchoring means on the support frame and top carriage and turned around freely rotatable sprocket wheels disposed at opposite end regions of the middle carriage.
  • the objective of the invention is to propose a telescopic load-bearing means which, whilst being of a simple construction, is distinctive due to a minimized construction height and low weight and hence high capacity usage and short operating cycles.
  • the surprising advantage of this approach is that, because of the separately disposed guide planes for the height guide and a guide plane for the lateral guide oriented perpendicular thereto, combined with the guide plane of transmission means of a transmission system extending at an angle to the guide planes, the tables driven into the shelving region to deposit or retrieve storage aids can be made to small cross-sectional dimensions. Due also to the high guiding accuracy which can be achieved, the driving-in height which has to be left free overall between a storage aid bottom face and a storage aid top face can be kept small, as a result of which a warehouse shelving system operated using the storage aid proposed by the invention has a high stacking factor, i.e. has a small proportion of non-usable empty capacity relative to the total storage volume, which also means shorter travel paths for the transport mechanism or for the shelf-stacking device for comparable storage capacities, and all of these factors make both the warehouse and the transport mechanism significantly more economic.
  • An embodiment of the type defined in claim 8 enables the use of less expensive, standardized machine elements.
  • the advantageous embodiment defined in claim 15 results in a high bending and torsion resistance due to the fact that I-sections of this type have a high moment of inertia, which means that bending deformation of the telescopic table when accommodating a load and the high bending moments which occur in the extracted state can be kept low, enabling exact positioning and hence a free drive-in height in the shelving, thereby minimizing the empty volume of the warehouse overall.
  • any flexing of storage means, supported in a position higher than the bearing surface of the top table on the endless conveyors running at either side when the telescopic table in the retracted state, does not detrimentally affect their stability on the load-bearing means.
  • the embodiment defined in claim 23 guarantees a lower construction height for the intermediate table and thus saves on weight.
  • One possible embodiment in this respect comprises the specified lever arrangement, by means of which a locking means can be automatically switched to a locked position by acting on the load via the storage aid.
  • locking means which are displaced by means of an independent drive system, for example an electromagnet.
  • the storage aid is also secured on the top table of the telescopic table in the retracted state, i.e. when the storage aids are supported on the endless conveyors running at the side of the telescopic table.
  • claim 34 defines an advantageous embodiment, whereby an extraction length of the telescopic table is made longer, so that the latter is able to move under storage aids in the second row which are not exactly positioned, for example are stowed at a bigger distance from the position of the first row, by a reliable amount of projection.
  • the embodiments of transmission systems defined in claims 35 and 36 also enable different ways of transmitting movement between the top table and the middle table depending on the relative movement between the middle table and the bottom table and guarantee a transmission ratio of 1:2, i.e. a displacement path and a displacement speed of the middle table relative to the bottom table is transmitted to the top table in a ratio of 1:2.
  • Claims 37 to 39 define other advantageous embodiments which guarantee exact final positioning of the load-bearing means in the height direction even if there are variances between a theoretical desired position and an actual position of the free retraction section between the storage aids stowed in the shelf due to deformations caused by a changing load state of the shelf, for example, which means that the vertical distance between a top edge of a storage aid and a bottom edge of the storage aid stored on top of it, needed in order to drive the telescopic table in, can be designed with a lower plus tolerance with respect to the structural height of the components to be drive in. This makes it possible to stow the storage aids more densely by reference to the total volume of the warehouse, thereby making it more economic.
  • the invention further relates to a method of stowing and retrieving goods with storage aids in or from a shelf, of the type outlined in the introductory part of claim 40 .
  • position data for every shelf compartment is stored in a central control system on the basis of X and Y co-ordinates.
  • the objective of the invention is to propose a method of stowing and retrieving goods with storage aids and a telescopic load-bearing system by means of which more refined end positioning can be achieved rapidly before retracting the telescopic load-bearing means in order to minimize empty storage space.
  • FIG. 1 is a view in elevation showing a shelving system and a transport system, in particular a shelf-stacking device, with a telescopic load-bearing system proposed by the invention disposed on a loading platform;
  • FIG. 2 is a schematic diagram showing a plan view of the shelving system illustrated in FIG. 1 with the shelf-stacking device;
  • FIG. 3 is a schematic diagram of a part-region of a shelving system with load-bearing means as proposed by the invention
  • FIG. 4 is a plan view of the load-bearing means with the telescopic table driven into a shelf;
  • FIG. 5 shows a section of the load-bearing means along line V-V indicated in FIG. IV;
  • FIG. 6 is a front view of a locking mechanism of the load-bearing means proposed by the invention.
  • FIG. 7 shows a plan view of the locking mechanism
  • FIG. 8 shows a front view of the locking mechanism with a load-bearing means to be secured
  • FIG. 9 shows a detail of a warehouse shelf with a angled section of the shelf, designed to obtain an adjustment to the actual position of the load-bearing means, viewed in section along line IX-IX indicated in FIG. 4 .
  • FIGS. 1 and 2 is a view in elevation showing a transport system, in particular a shelf-stacking device 1 , and a shelving system 2 which in this example comprises a vertical racking system with shelves 3 , 3 ′ for stowing storage aids 4 , in particular containers, boxes, etc.
  • the shelf-stacking device 1 in this example is designed so that it can be moved in a shelving aisle 5 between two shelves 3 spaced at a distance apart from one another in the alley direction—indicted by double arrow 9 —along rails 7 running along a support surface 6 and a running gear system, not illustrated, on a head 8 of the shelving system 2 and at least one drive system.
  • load-bearing means 11 proposed by the invention may also be used on other devices, elevator vehicles, etc. in order to service a warehouse or for conveying goods transported in storage aids.
  • the load-bearing means 11 which can be displaced in the direction of the height of a mast 12 extending perpendicular to the support surface 6 , is guided by means of vertical and/or lateral guide members, not illustrated in detail, and can be essentially vertically displaced along the guide tracks by means of a drive system 13 .
  • the load-bearing means 11 is equipped with a telescopic table 15 which can be displaced in a plane extending parallel with the support surface 6 —indicated by double arrow 14 —which preferably comprises a bottom table 16 , an intermediate table 17 and a top table 18 .
  • each of the shelves 3 has several shelf uprights 19 disposed vertically with respect to the support surface and shelf compartments 20 between them spaced apart from one another in vertical planes. Angled sections 21 are oriented horizontally and parallel with the support surface 6 and enable storage in several rows within a shelf compartment 20 . It should be pointed out that the shelves 3 may naturally be provided in the form of individual shelves, although this is not illustrated, but the more economic solution is that of the double shelves illustrated in the embodiment described as an example here.
  • an incoming conveyor system 22 in particular a roller conveyor, is provided upstream of the shelf-stacking device 1 , preferably at the beginning and/or the end of the shelving aisles 5 , for transporting the storage aids 4 .
  • the storage aids 4 are conveyed in the direction towards the shelf-stacking device 1 —indicated by arrow 23 .
  • the incoming conveyor system 22 disposed upstream of the shelf-stacking device 1 may be an accumulation roller conveyor system of a type known from the prior art so that the storage aids 4 , e.g. containers, boxes, can be conveyed on the basis of an accumulation system.
  • the top table 18 of the telescopic table 15 can be telescopically extracted and retracted in both directions by reference to the displacement direction of the shelf-stacking device 1 . If at least one storage aid 4 has to be transferred from the loading platform 11 into a shelf compartment 20 or transferred from the shelf compartment 20 to the loading platform 11 , the shelf-stacking device 1 together with its loading platform 10 is positioned in front of the relevant shelf compartment 20 in the aisle direction—indicated by double arrow 9 —and the vertical direction of the mast 12 so that a bearing surface 26 of the top table 18 for the storage aids 4 is positioned slightly underneath one of the support surfaces 27 formed by the angled sections 21 and centrally in front of the at least one storage aid 4 to be stowed or retrieved. After driving the top table 18 into the shelf 3 , the storage aid 4 is lifted by raising the loading platform 11 . After the lifting operation, the top table 18 is retracted until it assumes a central position with respect to the stationary bottom
  • the load-bearing means 11 can be used to pick up at least one storage aid 4 from the incoming conveyor system 22 and to transfer at least one storage aid 4 disposed on the load-bearing means 11 to the outgoing conveyor system 24 downstream of the shelf-stacking device 1 , in which case the shelf-stacking device 1 and the load-bearing means 11 are positioned in front of the incoming or outgoing conveyor system 22 ; 24 in the aisle direction—indicated by double arrow 9 —and in the vertical direction so that the bearing surface 26 of the top table 18 extends parallel with the support surface 6 and flush with a conveyor plane 28 of the incoming or outgoing conveyor system 22 ; 24 and the telescopic table 15 is positioned centrally with respect to the at least one storage aid 4 to be picked up, after which the at least one storage aid 4 can be moved onto the telescopic table 15 or moved off it.
  • FIG. 3 is a simplified, schematic diagram illustrating a region of the shelving system 2 with the stowed storage aids 4 , e.g. empty containers 29 , and the shelf-stacking device 1 with the load-bearing means 11 incorporating the telescopic table 15 .
  • Extending on either side of the telescopic table 15 across a retracted length 30 of the telescopic table 15 is a two-track conveyor with synchronously driven endless conveyors 31 , 32 e.g. belt conveyors.
  • a total width 33 approximately corresponds to an external dimension 34 of the storage aid 4 .
  • a width 35 of the top table 18 is shorter than a free space between legs 36 of the bearing sections 21 for the storage aids 4 in the shelf 3 extending towards one another and secured to the shelf uprights 19 in the direction extending parallel with the support surface 6 and in the direction of a shelf depth.
  • a distance 37 between the bearing sections 21 spaced apart in the vertical direction of the shelf uprights 19 is bigger than a 1 vertical dimension 39 of the storage aid 4 by the amount of the driving-in height 8 required and the required driving-in height 38 is dependent on a total height 40 of the top table 15 and intermediate table 16 and the positioning accuracy of the loading platform 11 to be obtained.
  • FIGS. 4 and 5 provide a detailed illustration of the telescopic table 15 disposed on a support frame 41 of the shelf-stacking device 1 and between the endless conveyors 31 , 32 . It comprises the bottom table 16 secured to the support frame 41 , the intermediate table 17 and top table 18 .
  • the top table 18 and the intermediate table 17 can be displaced relative to the bottom table 16 and relative to one another in linearly extending guide systems 42 , 43 , 44 , 45 , disposed more or less symmetrically with respect to a mid-plane 46 extending vertically and in the displacement direction of the intermediate table 17 and top table 18 and parallel with one another and form spaced-apart guide planes 47 , 48 for the displaceable mounting of the top table 18 on the intermediate table 17 and of the intermediate table 17 on the bottom table 16 , parallel with the bearing surface 26 of the top table 18 .
  • the guide systems 42 , 43 , 44 , 45 are provided in the form of strip-shaped, stepped side faces 49 , 50 , 51 , 52 projecting out from the intermediate table 17 and guide projections 53 extending across the length 30 and groove-shaped recesses 54 of the top table 18 and of the bottom table 16 .
  • special guide elements 55 in the form of anti-friction sections 56 are disposed on the strip-shaped guide projections 53 —preferably attached by a positive or frictional connection and clamping action, one the one hand, and complementary sections 57 enclosing the anti-friction sections 56 in the groove-shaped recesses 54 on the other hand.
  • U-sections made from plastic with good anti-friction properties are provided as the anti-friction sections 56 and the complementary sections 57 are preferably metal sections. Surfaces acting as sliding surfaces may optionally be provided with a low-friction, wear-resistant coating 58 .
  • the guide elements 55 are parts which can be easily replaced in a maintenance situation and also simplify the process of producing the guide projections 53 and the recesses 54 on the tables.
  • the groove-shaped recesses 54 of the top table 18 are provided in the form of approximately C-shaped contouring of side walls 59 bounding the top table 18 in the width 35 .
  • the intermediate table 17 In order to provide guide systems 44 , 45 in which the intermediate table 17 can be guided relative to the bottom table 16 , it has support strips 60 extending across the length 30 , which are attached to the bottom table 16 and project in the direction of the intermediate table 17 and, facing one another, the groove-shaped recesses 54 for the guide projections 53 incorporating the guide elements 55 .
  • the intermediate table 17 corresponds to that of an essentially flat I-beam with a top and bottom band, which results in a high section modulus in order to absorb bending force under load in the extracted state.
  • fiber-reinforced composite components or alternatively components incorporating reinforcing elements strengthened with fabric or made from metal—for the intermediate table 17 and the top table 18 for reasons of both bending resistance and achieving a lower weight, as well as cheaper production and material options.
  • the fibers which might be used include carbon fibers, glass fibers and Kevlar fibers, for example.
  • the composite material might be plastic, in particular polyester resin by preference.
  • light metal alloys such as Al or Mg alloys.
  • the guide projections 53 In order to achieve a short construction height 61 between a top face 62 of the top table 18 and a bottom face 63 of the bottom table 16 , the guide projections 53 also have a stepped offset and a band width 64 of what might be termed the top band is bigger than a band width 65 of what would be termed the bottom band.
  • a drive system 66 which in the embodiment illustrated as an example is a traction drive 67 —transmission systems 68 are provided, with strand-shaped transmission means 70 such as belts, cables, chains, etc., extending round rotatably mounted sprocket wheel means 69 in opposite end regions of the intermediate table 17 .
  • two of these transmission systems 68 are provided in total, in which a respective strand-shaped transmission means 70 , such as a cable, belt, chain, etc. in a complementary disposition leads from a fixing means 71 on the top table 18 and round an approximately 180° turn of the sprocket wheel means 69 to another fixing means 72 , with the transmission means 70 on the bottom table 16 preferably secured by a clamping mechanism 73 .
  • a respective strand-shaped transmission means 70 such as a cable, belt, chain, etc. in a complementary disposition leads from a fixing means 71 on the top table 18 and round an approximately 180° turn of the sprocket wheel means 69 to another fixing means 72 , with the transmission means 70 on the bottom table 16 preferably secured by a clamping mechanism 73 .
  • a theoretical transmission plane 76 formed by the sprocket wheel means 69 and by the strands 74 , 75 of the transmission means 70 guided by it in opposite directions subtends an angle 77 with the bearing surface 26 of the top table 18 , which angle 77 is between approximately 10° and 60°.
  • At least one other guide plane 78 is provided perpendicular to the guide planes 47 , 48 and parallel with the displacement direction, which in the embodiment illustrated as an example here is provided in the form of two guide systems 79 , 80 laterally offset from one another, as described above, and groove-shaped recesses 54 in the intermediate table 17 extending in the longitudinal direction in which the guide projections 53 incorporating the guide elements 58 connected to the top table 18 and the bottom table 16 project. This ensures an exact lateral guidance across the entire displacement path.
  • a corresponding lateral guide and hence the vertically extending guide plane 78 can also be achieved by designing the guide systems 42 , 43 , 44 , 45 with virtually no lateral clearance.
  • the drive system 66 in the embodiment illustrated as an example here is a traction drive 67 with an endlessly circulating multiple chains, in particular a triplex chain, disposed on the bottom table 16 and has a chain strand 82 guided parallel with a bottom face 81 of the intermediate table 17 .
  • External chains of the triplex chain are guided by means of drive and sprocket wheel gears, whilst the middle strand is secured to the bottom face 81 of the intermediate table 17 and meshes with toothed racks 83 extending in the direction of the longitudinal extension.
  • the chain may be what is known as a quad chain which meshes with two toothed racks extending parallel.
  • the total displacement path of the telescopic table 15 can be made longer than is the case with a chain drive with an endlessly circulating chain by some 10% to 25%, reducing the limit of an overlap needed in the guide systems.
  • This extension of the total displacement path therefore increases the range of the telescopic table, so that in the event of double storage, the top table can be reliably moved underneath the storage aid deposited in the second position, even if it has been deposited slightly farther away from the shelf middle than intended as standard.
  • the design of the shelf-stacking device 1 with the loading platform 11 and the telescopic table 15 is intended to provide high transport efficiency due to high displacement speeds, in order to minimize stowage and retrieval times.
  • a locking mechanism 86 is provided at opposite end regions 84 , 85 of the top table 18 , as a means of securing the storage aid 4 to prevent it from falling off the telescopic table 15 , as may be seen from FIGS. 4 and 5 , which is preferably provided on the longitudinal side walls 59 of the top table 18 .
  • FIGS. 6 and 7 described below illustrate a detail of one possible design of a locking mechanism 86 whilst FIG. 8 illustrates the operating mode for securing a storage aid 4 accommodated on the top table 18 .
  • the locking mechanism 86 is a lever arrangement with a single lever element 89 which can be pivoted relative to the top face 62 of the top table 18 about parallel pivot axes 87 and about another pivot axis 88 , and a double lever element 91 with a catch pawl 90 .
  • the locking mechanism 86 also has a spring system 92 and a stop means 93 , by means of which a basic position of the single lever element 89 extends by means of an operating region 94 spaced at a distance apart from the pivot axis 87 beyond the top face 62 of the top table 18 , and in this position is positioned by the spring force of the spring system 92 against the stop means 93 , in particular against a stop bolt 95 projecting along the side wall 59 .
  • the single lever element 89 is displaceably connected to the double lever element 91 in a mutually engaging slide block system 96 .
  • the other lever Opposite the slide block system 96 by reference to the pivot axis 88 of the double lever element 91 , the other lever has a hook-shaped lock projection 97 , which does not project beyond the top face 62 of the top table 18 in the basic position.
  • the described locking mechanism 86 is but one embodiment and that it would also be perfectly possible to use other designs whereby a locking mechanism is moved in a vertical direction with respect to the top face 62 of the top table from a position in which it does not project beyond the top face 62 into a position in which it does project beyond it.
  • this locking mechanism could also be operated by means of a separate drive, for example by means of an electromagnet or electric motor.
  • a leg 102 is provided on at least one of the oppositely lying angled sections 21 by means of which it is secured to the shelf upright 19 , at its end region facing the load-bearing means 11 , forming an inlet ramp due to an angled design and, adjoining it in the form of another geometric development, a flat positioning point 103 in a plane extending perpendicular to the displacement direction of the telescopic table 15 —indicated by double arrow 14 .
  • This positioning point 103 is therefore of a height 104 corresponding to a leg height of the angled section 21 .
  • a height distance 105 extending in the vertical direction between the support surfaces 27 of the angled sections 21 thus corresponds to the vertical dimension 39 of the storage aids 4 plus the requisite driving-in height 38 , which is made up of the total height 40 of the intermediate table 17 and the top table 18 plus a safety space which depends on the positioning accuracy of the shelf-stacking device 1 with the load-bearing means 11 .
  • a preferably optical electronic position detecting unit 106 equipped with light sensors 107 facing the positioning point 103 is provided on the load-bearing means 11 , preferably on the stationary bottom table 16 mounted by means of a strut.
  • the position detecting unit 106 is preferably provided with two light sensors 107 disposed facing one another at a vertical distance 109 , which distance 109 is slightly smaller than the height 104 of the positioning point 103 .
  • a position detecting unit 106 in conjunction with a control unit 110 which has an integrated computer 111 and is connected to a primary central computer 112 via cables or, as illustrated here, wirelessly and has a signaling connection to the control and regulating unit 113 of the shelf-stacking device 1 , is to obtain a fine positioning of the load-bearing means 11 from a theoretically pre-set desired position to an actual position by reference to the shelf space, thereby enabling the drive-in cross-section for the load-bearing means 11 to be minimized.
  • the distance 109 should be selected so that it is slightly shorter than the height 104 .
  • the described layout is crucial to a fine positioning of the load-bearing means 11 in the Y axis, the broken lines in FIG. 9 showing the position of the light sensors 107 after a desired positioning operation and the solid lines illustrating the situation after adjusting the position to the ACTUAL position, as will be described in more detail below.
  • a fine positioning system of this type may also be used for the X axis, in which case such positioning points 103 are preferably provided on both of the angled sections 21 lying opposite one another and two position detecting units 106 are provided on the load-bearing means 11 , which are placed more or less in the middle between the light sensors 107 set at the distance 109 , as may be seen from FIG. 9 , and at least one other light sensor 107 is provided, which scan a cut-out 115 in the positioning point 103 in pairs, for example, in order to detect any deviation in position in the X axis.
  • the load-bearing means 11 is moved on the basis of a rule conforming to positional data stored in the central computer 112 , in other words on the basis of a desired position, for retrieving the storage aid 4 .
  • the signals of the light sensors 107 obtained by means of the position detecting unit 106 are analyzed in the control unit 110 or in the central computer 112 in accordance with a stored position matrix, which results in appropriate activation commands for the drive systems of the shelf-stacking device 1 to displace it in the direction of the X axis and of the load-bearing means 11 and to displace it in the Y axis and thus regulate it to the exact actual position on the basis of the signals from the optical electronic detection unit 106 , where the light beams 114 emitted by the light sensors 107 hit the surface 108 of the positioning points 103 .
  • FIG. 1 to 9 constitute independent solutions proposed by the invention in their own right.
  • the objectives and associated solutions proposed by the invention may be found in the detailed descriptions of these drawings.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Transportation (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Warehouses Or Storage Devices (AREA)
  • Specific Conveyance Elements (AREA)
  • Vehicle Body Suspensions (AREA)
  • Seal Device For Vehicle (AREA)
  • Fluid-Damping Devices (AREA)
  • Bearings For Parts Moving Linearly (AREA)
US10/583,749 2003-12-22 2004-12-13 Telescopic load-carrying device and method for the operation thereof Abandoned US20070144991A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ATA2068/2003 2003-12-22
AT0206803A AT500280B1 (de) 2003-12-22 2003-12-22 Teleskopierbare lasttragvorrichtung
PCT/AT2004/000437 WO2005061363A2 (fr) 2003-12-22 2004-12-13 Dispositif telescopique pour porter des charges

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US20070144991A1 true US20070144991A1 (en) 2007-06-28

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US10/583,749 Abandoned US20070144991A1 (en) 2003-12-22 2004-12-13 Telescopic load-carrying device and method for the operation thereof

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US (1) US20070144991A1 (fr)
EP (1) EP1697251B1 (fr)
AT (2) AT500280B1 (fr)
DE (1) DE502004010015D1 (fr)
ES (1) ES2333021T3 (fr)
WO (1) WO2005061363A2 (fr)

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US20140072392A1 (en) * 2011-03-29 2014-03-13 Murata Machinery, Ltd. Automatic storage system
US20150104278A1 (en) * 2013-10-15 2015-04-16 PHARMATHEK S.r.L. Unit and procedure for automated transfer of box elements
US20150130626A1 (en) * 2013-11-13 2015-05-14 Rockwell Automation Technologies, Inc. Sensor device with enhanced light guide visualization and related methods
US20150217935A1 (en) * 2012-09-05 2015-08-06 Murata Machinery, Ltd. Transfer device
US20150259141A1 (en) * 2012-08-31 2015-09-17 Murata Machinery, Ltd. Transfer device
WO2015137865A1 (fr) 2014-03-11 2015-09-17 Texo Application Ab Procédé et dispositif de déplacement d'objets sur des étagères
CN107432626A (zh) * 2017-08-01 2017-12-05 合肥利元杰信息科技有限公司 一种电脑销售用展示台
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US10954065B2 (en) 2015-07-27 2021-03-23 Tgw Logistics Group Gmbh Method and system for delivering items in delivery containers
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US11427414B2 (en) * 2015-08-12 2022-08-30 Symbotic Canada, Ulc System and method for palletizing
US10556784B2 (en) 2015-11-06 2020-02-11 Eisenmann Se Lifting system and method for lifting and/or lowering loads
US20190033837A1 (en) * 2016-01-14 2019-01-31 Magazino Gmbh Robot to pick up and transport objects and method using such a robot
US10962963B2 (en) * 2016-01-14 2021-03-30 Magazino Gmbh Robot to pick up and transport objects and method using such a robot
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US11715066B2 (en) 2017-03-15 2023-08-01 Walmart Apollo, Llc System and method for management of perpetual inventory values based upon customer product purchases
US11797929B2 (en) 2017-03-15 2023-10-24 Walmart Apollo, Llc System and method for perpetual inventory management
US11816628B2 (en) 2017-03-15 2023-11-14 Walmart Apollo, Llc System and method for management of perpetual inventory values associated with nil picks
US11868960B2 (en) 2017-03-15 2024-01-09 Walmart Apollo, Llc System and method for perpetual inventory management
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EP1697251A2 (fr) 2006-09-06
WO2005061363A2 (fr) 2005-07-07
EP1697251B1 (fr) 2009-09-02
AT500280A1 (de) 2005-11-15
ATE441620T1 (de) 2009-09-15
DE502004010015D1 (de) 2009-10-15
WO2005061363A3 (fr) 2005-11-10
ES2333021T3 (es) 2010-02-16

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