WO2002055930A2 - Grillage a ciseaux - Google Patents

Grillage a ciseaux Download PDF

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Publication number
WO2002055930A2
WO2002055930A2 PCT/EP2002/000341 EP0200341W WO02055930A2 WO 2002055930 A2 WO2002055930 A2 WO 2002055930A2 EP 0200341 W EP0200341 W EP 0200341W WO 02055930 A2 WO02055930 A2 WO 02055930A2
Authority
WO
WIPO (PCT)
Prior art keywords
scissor
lattice
scissor lattice
elements
another
Prior art date
Application number
PCT/EP2002/000341
Other languages
German (de)
English (en)
Other versions
WO2002055930A3 (fr
Inventor
Oliver Michl
Patrick Frieling
Original Assignee
Oliver Michl
Patrick Frieling
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 Oliver Michl, Patrick Frieling filed Critical Oliver Michl
Priority to AU2002225008A priority Critical patent/AU2002225008A1/en
Priority to DE20220549U priority patent/DE20220549U1/de
Publication of WO2002055930A2 publication Critical patent/WO2002055930A2/fr
Publication of WO2002055930A3 publication Critical patent/WO2002055930A3/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14—Adjustable mountings
    • F21V21/24—Lazy-tongs

Definitions

  • the invention relates to a scissor lattice, in particular for the production of scissor lattice lights, with intersecting scissor lattice elements and articulated to each other at at least three crossing points, the at least three articulated connections of each scissor lattice element being arranged at a distance from one another transversely to the longitudinal direction of the scissor lattice.
  • the invention also relates to a scissor lattice lamp with such a scissor lattice.
  • Scissor lattices can be pulled apart or pushed together continuously in their longitudinal direction, so that their length can be set as desired between a minimum and a maximum length. The distances between the scissor lattice elements and their alignment change evenly.
  • Such a scissor lattice light can, for example, always illuminate an extendable table evenly, since the distance between the individual illuminants always changes uniformly with a change in the length of the scissor lattice.
  • Examples of such scissor lattice lights are known from EP 0 735 315 B1 and EP 0 982 537 A2. The disadvantage of these lights is that they only have sufficient rigidity when the scissor lattice plane (s) are aligned vertically.
  • Scissor lattice lights are also known in which the scissor lattice is designed for horizontal alignment.
  • the individual scissor lattice elements or rods in these known scissor lattice lights are designed in a vertical direction, ie perpendicular to the scissor lattice plane, with enlarged cross-sectional dimensions - that is, higher.
  • the diameter and length of the hinge pins have to be increased, since they have to absorb or release the bending moments in the respective scissor lattice bars in sufficiently long sleeve-shaped guides and should transmit the existing bending moment between the scissor lattice bars.
  • the object of the present invention is to propose a scissor-type lattice which can be suspended with less deflections and a simpler design transversely to its longitudinal direction. Furthermore, a scissor lattice lamp improved in this way is proposed.
  • this object is achieved in a scissor-type grating of the type mentioned at the outset in that each scissor-type grating element runs in the form of an arc transverse to the longitudinal direction of the scissor-type grating and in that the at least three articulated connections of each scissor-type grating element are arranged in three sections of the arc such that not all three associated crossing points lie on a straight line transverse to the longitudinal direction of the scissor lattice.
  • a scissor lattice lamp with such a scissor lattice is also proposed.
  • a scissor lattice according to the invention and a scissor lattice lamp according to the invention formed therewith have a high bending strength in all directions transverse to their longitudinal directions. ability that prevents large deflections in a simple manner, even with relatively large spans between suspension points.
  • the scissor lattice elements run in an arcuate manner transversely to the longitudinal direction of the scissor lattice and the articulated connections with the respectively adjacent scissor lattice elements are arranged along the arcuate course in sections of the arc which or their crossing points are not all on a straight line, the bending moments no longer have to be about the bending stiffness of the individual scissor lattice elements and their articulated connections.
  • the at least three articulated connections of a scissor lattice element are arranged triangularly to one another transversely to the longitudinal direction of the scissor lattice, ie they have both vertical and horizontal distances from one another.
  • the bending moment is predominantly transmitted through a division into tensile and compressive forces and no longer through bending stress of the scissor lattice elements and their articulated connections.
  • Components with the usual cross-sectional dimensions can therefore be used for the scissor lattice elements and the articulated connections. In this regard, special designs with special connection training for the articulated connections are not necessary.
  • arc or “arcuate course” is to be understood to mean all curvilinear scissor lattice elements, in particular also polygon courses. Furthermore, the arch must not only have a unidirectional curvature; it can also contain turning points.
  • each scissor lattice element extends in the longitudinal direction of the arc over at least 270 ° and has four articulated connections which lie in pairs on two straight lines perpendicular to one another, each scissor lattice element connected to two articulated connections lying on one of the two straight lines, the axes of rotation of which are spaced apart from one another, with different scissor lattice elements and on two articulated connections lying on the other straight line, whose axes of rotation match, with the same Scissor lattice element is connected.
  • each scissor lattice element extends in the longitudinal direction of the arc over 360 ° and is closed, i.e. The beginning and end of the arch are connected to one another, so that each scissor lattice element has an annular cross section in the arch plane.
  • the bending stiffness of the scissor lattice is also significantly increased.
  • the scissor lattice elements are designed in the radial direction of the arches as a series of outer scissor lattice elements and a series of inner scissor lattice elements, the outer dimensions of the inner scissor lattice elements essentially corresponding to the inner dimensions of the outer scissor lattice elements.
  • the individual scissor lattice elements can be made in one piece, as a result of which the articulated connections can be made particularly simply and the assembly effort can be kept particularly low.
  • the articulated connections are advantageously designed as pivot bolts which run in the arc plane of the scissor lattice elements which are connected to one another.
  • the use of pivot pins enables extremely cost-effective formation of the articulated connections.
  • the position and the length of the pivot pins can be selected so that they penetrate two opposing arch sections of a scissor-type grating element. This not only further simplifies the formation of the articulated connections, but also increases the stability of the articulated connections.
  • the outer dimensions of all scissor-grille elements are essentially the same, each scissor-grille element being connected at two diametrically opposite vertices to the respectively adjacent scissor-grille element via a hinge-like articulated connection, the axis of rotation of which runs tangentially to the arc, and on which ( the) intermediate joint (s) is divided.
  • each scissor lattice element is divided into two, the two parts being connected to one another in a flexurally rigid manner to which the two parts of another scissor lattice element to be connected are also connected.
  • This joint thus connects the two parts belonging to a scissor lattice element to each other in a rigid manner and at the same time enables two scissor lattice elements to be pivoted toward one another.
  • the advantage of this embodiment is that the parts of the scissor lattice elements are all essentially the same, which can reduce their production costs.
  • an articulated connection on which the scissor lattice elements are divided is formed from two superposed disks which can be rotated relative to one another about a common axis of rotation and each have two diametrically opposed receptacles, the two parts of a scissor lattice element in the receptacles of one disk and the two parts of an articulated other scissor lattice element are fastened in the receptacles of the other disc.
  • a joint can be realized without major technical effort.
  • the scissor lattice elements are preferably formed from electrically conductive material and partially electrically insulated from one another, part of the scissor lattice elements being connectable to one of the poles of a low-voltage source and the other part of the scissor lattice elements being connectable to the other pole, and the scissor lattice elements in each case Connection elements for connecting low-voltage lamps exhibit. With these measures, the lamps can be supplied with electricity in a simple manner, so that the technical outlay remains low and the aesthetic impression is not impaired.
  • each inner and each outer scissor lattice element is electrically connected to the respective inner and outer scissor lattice element next to one another via the respective outer or inner scissor lattice element located therebetween, so that two Interlocking rows of scissor-lattice elements formed in this way are present, these rows being electrically insulated from one another and one row being connectable to one pole and the other row to the other pole of the low-voltage source.
  • each scissor lattice element is connected as a whole either to the positive or to the negative pole.
  • the disks of the articulated connections on which the scissor lattice elements are each divided to be formed from electrically insulating material and to Receptacles and between the panes of electrically conductive material is arranged in such a way that only parts of different scissor grid elements that are adjacent to one another in the longitudinal direction of the scissor grid are electrically connected to one another.
  • a scissor grid element is connected to the plus pole, while the other half of this scissor grid element
  • the scissor lattice lamp which is suspended in such a way that the articulated connections on which the scissor lattice elements are divided lie horizontally in the middle, the scissor lattice is along its longitudinal direction halved with regard to the current flow.
  • the left half is on one pole and the right half connected to the other pole of a low voltage source.
  • the panes are made of electrically conductive material and can be arranged in the receptacles and between the panes of electrically insulating material such that adjacent parts of different scissor grid elements are electrically connected to one another only in the longitudinal direction of the scissor grid.
  • FIG. 1 in a perspective view of a first embodiment of a scissor lattice lamp according to the invention, in the pushed-together state of the scissor lattice;
  • FIG. 2 in a perspective view, the scissor lattice lamp of Figure 1, in the extended state of the scissor lattice;
  • Figure 3 in a plan view on an enlarged scale, the hinge connection enclosed in Figure 1 with the circle Kl, the inner and outer scissor lattice element being separated from one another;
  • FIG. 6 - in a perspective view, a second embodiment of a scissor-type grating according to the invention. rear light, in partially pulled-apart condition of the scissor lattice;
  • FIG. 9 in a perspective view, a third embodiment of a scissor lattice lamp according to the invention, in a partially pulled-out state of the scissor lattice;
  • FIG. 12 - a top view of the parts of scissor lattice elements connected at the bottom left and bottom right in FIG. 11, with connection means for a low-voltage lamp;
  • FIG. 14 - in a side view the articulated connection from FIG. 11, partially sectioned along the scissor lattice element running from bottom left to top right in FIG. 11.
  • the exemplary embodiments of scissor lattice lights 1 according to the invention shown in the figures each have a scissor lattice 2 which is formed from arc-shaped scissor lattice elements 3 which cross each other and are connected to one another at the crossing points by articulated connections 4.
  • the arcuate scissor lattice elements 3 are each closed, i.e. annular ovals formed.
  • the scissor lattice elements are designed as inner 3a and outer 3b scissor lattice elements, the outer dimensions of the inner scissor lattice elements 3a being somewhat smaller than the inner dimensions of the outer scissor lattice elements 3b. This means that the outer contour of the inner scissor grid elements 3a runs close to the inner contour of the outer scissor grid elements 3b.
  • the last outer scissor lattice element 3b 'at the two ends of the scissor lattice 2 is designed as a half oval.
  • the scissor lattice lamp is suspended by ropes at two suspension points in the direction of the small axis of the oval.
  • the individual scissor lattice elements 3 are made from an electrically conductive flat material, for example punched out or cut out from a sheet of metal.
  • the scissor lattice elements 3 are designed as an oval ring, the cross section of which is rectangular in the circumferential direction, the longer side of the rectangle lying in the oval plane, which increases the rigidity of the scissor lattice elements 3 in the oval plane.
  • Each outer scissor lattice element 3b crosses three inner scissor lattice elements 3a or each inner scissor lattice element 3a crosses three outer scissor lattice elements 3b, except for the two outer half scissor lattice elements 3b 'at the two ends of the scissor lattice 2, which each cross only two inner scissor lattice elements 3a.
  • Each scissor grid element 3 is connected to the three crossing scissor grid elements 3 via four articulated connections 4.
  • the four joints fertilize 4 are each arranged in the apex of the oval.
  • a scissor-type grating element 3 is articulated to different neighboring scissor-type grating elements 3.
  • These articulated connections 4 are also referred to as external articulated connections 4a.
  • a scissor grid element 3 is articulated to the same adjacent scissor grid element 3.
  • These articulated connections 4 are also referred to as central articulated connections 4b.
  • the outer joint connections 4a are designed as hinge-like joint connections with an axis of rotation perpendicular to the major axis of the oval.
  • Such an external joint 4a is shown in detail in FIGS. 3 and 4. It consists of two outer sections 5 and a middle section 6, all of which are cylindrical and have the same outer diameter.
  • the two outer sections 5 each have a cylindrical receptacle 7 at one end and a slot 8 at the other end.
  • the central section 6 has a cylindrical bolt section 9 at its two ends, the outer diameter of which corresponds to the inner diameter of the cylindrical receptacle 7 of the outer sections 5 and which can be inserted into the latter.
  • the central section 6 has a continuous slot 10 along its longitudinal extent.
  • the width of the slots 8, 10 of the outer sections 5 and of the middle section 6 corresponds in each case to the thickness, i.e. the sheet thickness, the scissor mesh elements 3.
  • the bolt sections 9 of the middle section 6 are inserted into the cylindrical receptacles 7 of the outer sections 5.
  • the slots 8 of the outer sections 5 are placed on mutually opposite sections of the inner circumference of an outer scissor lattice element 3 a in the apex region thereof and fastened there.
  • the slot 10 of the central section 6 is articulated on the outer circumference to be connected to the inner scissor lattice element 3b in the apex region at the ends of the major axis and fastened there.
  • the outer articulated connections 4a are made of an electrically conductive material in order to electrically connect the inner scissor grid elements 3a to the outer scissor grid elements 3b at these locations.
  • the central-articulated connections 4b are each formed by a pivot pin 11, as shown in detail in FIG. 5.
  • the central joint 4b has two essentially cylindrical sections 12, 13.
  • a first section 12 has a cylindrical bolt 11 at one end or on an end face, while the second section 13 has a cylindrical receptacle (not visible in FIG. 5) on one end face, the inside diameter of which corresponds to the outside diameter of the bolt 11 of the first section 12 corresponds and which is intended for its inclusion.
  • a slot 14 extends in the longitudinal direction from the ends of the sections 12, 13 facing away from the bolt 11 or the cylindrical receptacle, which slot is provided for plugging onto the inner circumference of an outer scissor grid element 3b or onto the outer circumference of an inner scissor grid element 3a. Transversely to these slots 14, the sections are passed through in each case two through bores 15 which are used to receive fastening means 16, e.g. Rivets are provided, with which the scissor lattice elements 3 are each secured in the slots
  • the two cylindrical sections 12, 13 of the central-articulated connections 4b are made of electrically conductive material, one of the slots 14 of the sections 12, 13, which are provided for receiving the inner or outer scissor lattice elements 3a, 3b, with an electrically non-conductive plastic element 17 is lined to electrically isolate the inner scissor grid element 3a and the outer scissor grid element 3b from each other at this point.
  • each inner and outer scissor grid element 3a, 3b with the respective next but one inner and outer scissor grid element 3a, 3b is electrical via the respective outer or inner scissor grid element 3b, 3a connected.
  • Two interlocking rows of scissor lattice elements 3 are formed on these, these rows being insulated from one another at the central-articulated connections 4b.
  • One of the rows can be connected to one pole of a low voltage source and the other row to the other pole.
  • the slot 14 for receiving the outer scissor lattice element 3b is lined in one and the slot 14 for receiving the inner scissor lattice element 3a is lined with the non-conductive plastic element 17, so that a center hinge connection 4b can be connected to the positive pole and the other center joint 4b to the negative pole of a low-voltage source and both can serve as connection elements for a low-voltage lamp 18.
  • the inner scissor lattice elements have inwardly projecting mounting elements for mounting low-voltage lamps.
  • FIGS. 6 to 8 show a scissor lattice lamp 1 with inner 3a and outer 3b scissor lattice elements, in which the design of the outer articulated connections 4a is modified compared to that shown in FIGS. 1 to 5.
  • the outer articulated connection 4a is arranged somewhat inward from the apex of the scissor lattice elements 3 and is formed in two parts 19, 19 'which are arranged at a distance from one another.
  • the two parts 19, 19 'of the outer articulated connection 4a each have two sections 20, 21 which are cylindrical and have a cylindrical end at one end. have cylindrical bolts 22 or a corresponding cylindrical receptacle 23.
  • slots 24 are formed, which are provided for attachment to the inner circumference of the outer scissor grid element 3b or to the outer circumference of the inner scissor grid element 3a.
  • an external hinge connection 4a is formed, so to speak, by two hinge connections, so that each scissor lattice element 3 is connected in this sense by six hinge connections to the three crossing scissor lattice elements 3.
  • the outer dimensions of all the scissor lattice elements 3 are essentially the same.
  • the scissor lattice elements 3 are also formed here as an oval ring.
  • the outer articulated connections 4a connect the scissor lattice elements 3 at their outer circumferences in the apexes of the major axes of the oval.
  • the scissor lattice elements 3 are divided at the central-articulated connections 4b, i.e. halved.
  • the external joint connection 4a is designed as a hinge joint, the axis of rotation or pivoting axis 25 of which runs tangentially in the apexes of the two scissor lattice elements 3 connected to one another.
  • the design of the central joint connections 4b is shown in FIGS. 11 to 14.
  • the central-articulated connection 4b is formed from two superimposed disks 26, 27 which can be rotated relative to one another about a common axis of rotation 28.
  • the two disks 26, 27 are connected to one another by a tubular rivet 28a, the tubular rivet axis forming the axis of rotation 28 of the central joint connection 4b and the two disks 26, 27 being rotatable relative to one another about this axis of rotation 28.
  • Each disc 26, 27 has diametrically opposite receptacles or slots 29, 30, into each of which one end of one of the two half ovals or parts 31, 32 of a shear lattice element 3 can be inserted.
  • the ends of the two parts 31, 32 of a scissor-type grating element 3 are designed in the form of a step 33, the projecting step section 34 being provided for insertion into a receptacle 29, 30 of the disk 26, 27.
  • the projecting step sections 34 are each passed through a through hole 35 which, when inserted into the receptacle 29, 30 of the disks 26, 27, is aligned with a through hole 36 present therein, through which a fastening bolt or a fastening rivet or the like can be passed, around which Scissor grid element parts 31, 32 to be fastened in the slots 29, 30 (see FIG. 13).
  • the recessed step section 37 lies opposite the outer circumferential surface of the disk 26, 27 above or below.
  • the current is passed through the central articulated connections 4b in such a way that only parts 31, 31 of different scissor grid elements 3 which are adjacent in the longitudinal direction of the scissor grid 1 are electrically connected to one another. That means e.g. in the central-articulated connection 4b shown in FIG. 11 (in connection with FIG. 9) that the left scissor-lattice element parts 31 are electrically connected to one another and the right-hand scissor-lattice element parts 32 are likewise electrically connected to one another, while the left 31 and the right 32 Scissor lattice element parts are electrically insulated from one another.
  • FIGS. 13 and 14 An example of the structural design of the central-articulated connections 4b is shown in detail in FIGS. 13 and 14.
  • the disks 26, 27 are made of electrically conductive material. Those slots 29, 30 in which there is no current in the scissor lattice element parts 31, 32 to be forwarded are lined with electrically insulating material 38, while in the remaining slots 30, 29 the scissor-lattice element parts 32, 31 rest directly on the walls of the receptacles 30, 29 and the current is thus passed on.
  • Only one type of charge (+ or -) is passed on at each articulated joint 4b.
  • the charge (+) is passed on to the upper, visible middle-articulated connections 4b, i.e.
  • the left scissor-lattice element parts 31 with the charge (-) shown in FIG. 11 are surrounded in the receptacles 29, 30 of the disks 26, 27 with electrically insulating material 38.
  • the charge (-) is passed on, i.e. 11, the scissor-lattice element parts 32 on the right in FIG. 11 with the charge (+) in their receptacles 29, 30 in the disks 26, 27 are surrounded with electrically insulating material 38.
  • the current can be carried out in any suitable way.
  • the disks 26, 27 of the central joint connections 4b are made of electrically insulating material and that electrically conductive material 38 is arranged between the disks 26, 27 and in the receptacles 29, 30 in such a way that the desired current flow or electrical insulation is achieved.
  • the scissor-lattice element parts 31, 32 are partially provided with inwardly projecting connection elements 39, which in the exemplary embodiment shown are formed on a central-articulated connection 4b at the ends of two scissor-lattice element parts 31, 32 (different polarity) ,
  • the scissor lattice element parts 31, 32 have inwardly projecting projections 40 which are provided for contact with the low-voltage lamps 18 in order to stabilize their position in the scissor lattice element 3.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Wire Processing (AREA)

Abstract

La présente invention concerne un grillage à ciseaux, notamment destiné à produire des systèmes d'éclairage à grillage à ciseaux (1). Ce grillage à ciseaux comprend des éléments de grillage à ciseaux (3) qui s'entrecroisent et sont connectés les uns aux autres de manière articulée, respectivement à au moins trois points d'intersection. Les au moins trois liaisons articulées (4) de chaque élément de grillage à ciseaux (3) sont situées à distance les unes des autres, perpendiculairement à la direction longitudinale du grillage à ciseaux (1). Chaque élément de grillage à ciseaux (3) s'étend perpendiculairement à la direction longitudinale du grillage à ciseaux (2), sous forme d'un arc et les au moins trois liaisons articulées (4) de chaque élément de grillage à ciseaux (3) se trouvent dans trois segments d'un tel arc, de façon que les trois points d'intersection correspondants perpendiculaires à la direction longitudinale du grillage à ciseaux (2) ne se trouvent pas tous sur une ligne droite. La présente invention concerne également un système d'éclairage à grillage à ciseaux (1) comprenant un tel grillage à ciseaux (2).
PCT/EP2002/000341 2001-01-15 2002-01-15 Grillage a ciseaux WO2002055930A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2002225008A AU2002225008A1 (en) 2001-01-15 2002-01-15 Zigzag structure
DE20220549U DE20220549U1 (de) 2002-01-15 2002-01-15 Scherengitter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP01100842A EP1223378A1 (fr) 2001-01-15 2001-01-15 Pantographe
EP01100842.2 2001-01-15

Publications (2)

Publication Number Publication Date
WO2002055930A2 true WO2002055930A2 (fr) 2002-07-18
WO2002055930A3 WO2002055930A3 (fr) 2002-09-19

Family

ID=8176213

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/000341 WO2002055930A2 (fr) 2001-01-15 2002-01-15 Grillage a ciseaux

Country Status (3)

Country Link
EP (1) EP1223378A1 (fr)
AU (1) AU2002225008A1 (fr)
WO (1) WO2002055930A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5837023B2 (ja) * 2013-01-28 2015-12-24 株式会社不二宮製作所 伸縮アームおよび伸縮アームを用いた構造物

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE807286C (de) * 1948-11-16 1951-06-28 Cosack O H G Geb Scherenarm
DE3304016A1 (de) * 1983-02-07 1984-08-09 Rudi Dr Baumann Scherengitter zur erzeugung von verstellbewegungen
EP0982537A2 (fr) * 1998-08-28 2000-03-01 Oliver Michl Lampe à pantographe
DE19923257A1 (de) * 1999-05-20 2000-11-23 Sabine Wald Variables Scherengittergestell

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19511839C2 (de) 1995-03-30 1998-07-09 Oliver Michl Elektrische Scherengitterleuchte

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE807286C (de) * 1948-11-16 1951-06-28 Cosack O H G Geb Scherenarm
DE3304016A1 (de) * 1983-02-07 1984-08-09 Rudi Dr Baumann Scherengitter zur erzeugung von verstellbewegungen
EP0982537A2 (fr) * 1998-08-28 2000-03-01 Oliver Michl Lampe à pantographe
DE19923257A1 (de) * 1999-05-20 2000-11-23 Sabine Wald Variables Scherengittergestell

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EP1223378A1 (fr) 2002-07-17
AU2002225008A1 (en) 2002-07-24
WO2002055930A3 (fr) 2002-09-19

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