EP1409825B1 - Sicherheitskontaktleiste - Google Patents

Sicherheitskontaktleiste Download PDF

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Publication number
EP1409825B1
EP1409825B1 EP00988649A EP00988649A EP1409825B1 EP 1409825 B1 EP1409825 B1 EP 1409825B1 EP 00988649 A EP00988649 A EP 00988649A EP 00988649 A EP00988649 A EP 00988649A EP 1409825 B1 EP1409825 B1 EP 1409825B1
Authority
EP
European Patent Office
Prior art keywords
profile
contact strip
safety contact
switching
switching chamber
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.)
Expired - Lifetime
Application number
EP00988649A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1409825A2 (de
Inventor
Helmut Friedrich
Paul Meyer
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.)
Aso Antriebs- und Steuerungstechnik GmbH
Original Assignee
Aso Antriebs- und Steuerungstechnik GmbH
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
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Application filed by Aso Antriebs- und Steuerungstechnik GmbH filed Critical Aso Antriebs- und Steuerungstechnik GmbH
Publication of EP1409825A2 publication Critical patent/EP1409825A2/de
Application granted granted Critical
Publication of EP1409825B1 publication Critical patent/EP1409825B1/de
Anticipated expiration legal-status Critical
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/14—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for operation by a part of the human body other than the hand, e.g. by foot
    • H01H3/141—Cushion or mat switches
    • H01H3/142—Cushion or mat switches of the elongated strip type
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/40—Safety devices, e.g. detection of obstructions or end positions
    • E05F15/42—Detection using safety edges
    • E05F15/44—Detection using safety edges responsive to changes in electrical conductivity
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/40—Mounting location; Visibility of the elements

Definitions

  • the invention relates to a safety contact strip having at least two conductive switching layers in a non-conductive, closed switching chamber within a profile forming an outer sheath.
  • Safety contact strips are regularly used as closing edge safety devices at crushing and shearing points. Attached to gates, machines and handling equipment are protected by such safety contact strips people and material.
  • the known safety contact strips are usually held on one mounting side in an aluminum carrier profile.
  • a generic safety contact strip has a held in a support profile contactor profile in which a separately trained safety contact strip is placed in a switching camera within the outer shell of the profile.
  • the special shape of the contactor profiles in particular consisting of an EPDM or NBR rubber, protects the safety contact strip located in the switching chamber from damage and not only allows switching loads for switching the contactor profile, perpendicular to the opposing switching layers of the contactor profile.
  • Safety contact strips of other types are known in which a profile is provided with a single hollow chamber having on the inside at least two opposing switching layers. In such safety contact strips, although a low switching load is only necessary, but there is a great risk of contamination of the switching layers, for example, in a fracture of the profile.
  • these safety contact strips can be made of a conductive and a non-conductive EPDM material, which coextruded materials then form these safety contact strips, there is a great risk that the comparatively thin, outer protective layer of the non-conductive EPDM material is not formed correctly and the conductive layer remains uninsulated to the outside and can easily be damaged.
  • a generic safety contact strip is from the DE 37 15 871 A known.
  • a safety contact strip explained there, a non-conductive, closed switching chamber is kept free within a profile forming a outer jacket profile of a cross-section in a spoke-like webs.
  • a separately formed switching strip is inserted, which has a plurality of switching layers, which are each applied to an insulating support. Opposite switching layers, spaced from each other, turn on a circuit when touched.
  • US-A-5,481,076 discloses a safety contact strip, in which a hollow profile in a concave recess of the outside has an electrical switching contact.
  • a separately formed and fixed holder for the contact strip is designed to be electrically conductive, so that when a contact of the electrically conductive holder and the switch contact, a circuit can be closed.
  • Such an electrical contact strip may also be part of the hollow profile itself.
  • a safety contact strip which has a switching chamber directly forming a hollow profile in which separately formed, electrically conductive contact strips are introduced. Externally connected to the profile is also a sealing lip.
  • the invention has the object, a safety contact strip of the type in question of high quality, but of To provide a comparatively simple structure available, especially with low switching loads, not only from actually expected direction, safely switches.
  • the profile, the switching chamber and the buttons are formed integrally with at least one embedded conductor.
  • a two-part design with a contactor profile and an inserted safety contact strip is a one-piece design manufacturing technology advantageous.
  • the measures of integral formation and the strength of the walls of the switching chamber can be kept relatively low, without the risk of contamination is given at a fraction of the outer shell.
  • the measure of a thinner wall of the switching chamber further the response of the safety contact strip is significantly improved at a switching load. In particular, it is due to the absence of a separately formed sheath of the switching layers to a significant saving of material.
  • the switching chamber is supported on the attachment side of the profile of at least one web spaced from a bottom of the profile.
  • an outer shell of a profile, webs within a profile and a switching chamber form a plurality of separate chambers within the profile.
  • the safety contact strip according to the invention is a coextrudate.
  • a simple, one-piece design of this safety contact strip is given, which also ensures a safe function.
  • an integrally formed safety contact strip is given, which optimally by the choice of materials used to predetermined mechanical and electrical requirements is adaptable.
  • the profile is formed of a TPE, that the switching layers are made of a conductive EPDM, and that the conductors are made of a metal.
  • the outer shell of the TPE profile can be adapted comparatively easily to the extent of the switching load.
  • TPE is much more resistant to a variety of chemical compounds, such as in occur in the automotive industry, where such safety contact strips are used for example in electric windows. It is also possible to design the conductive EPDM switching layers in terms of their ohmic resistance, without having to take into account an outer, non-conductive EPDM enclosure.
  • the profile and the switching layers may consist of a single-grade plastic and the conductors may consist of a metal.
  • the plastics listed above can be used.
  • the metal can be disposed of in a conventional manner, for example. By magnetic separator.
  • the material for example a TPE, of the profile has a Shore hardness of 50 to 70, in particular 60
  • a balanced measure is here given between a resistance to a switching load and a necessary softness for an elastic deformation Deformation via the webs on the switching chamber, a pressure is exerted, through which the switching layers, for example, come into contact electrical contact.
  • the TPE material if it is used as material for the outer shell of the profile, should have as dielectric an electrical resistance of more than 30 M ⁇ .
  • a sealing lip attached to the profile is provided. It can seal this lip of a separate material or from the Material of the shell of the contact strip exist.
  • a material has proven to be as smooth as possible surface and permanently elastic, for example, can retain its elasticity in penetrating into pores of the material water and frost. It may be molded such a sealing lip, but it is preferred that the complete safety contact strip is made with attached sealing lip as coextrudate, so here are processed together with different materials.
  • the nonconductive profile sheath whose resistance should be greater than 30 M ⁇
  • the conductive switching layers which are to be formed as highly conductive with embedded metallic conductor, which may be tissue-like in particular for a particularly good adhesion in the material, as well as the material for the sealing lip of such a material that prevents freezing, for example, or has good sliding properties, as required.
  • a safety contact strip with applied sealing lip can alternatively also be produced from a single-grade plastic.
  • the shell of the profile may at least partially formed having a separate surface coating and / or the shell of the profile at least partially made of a particular smooth surface, elastic material.
  • a preparation is provided as a co-extrudate to ensure a good adhesion of the materials with each other. It can be adjusted by these measures, the surface property of the shell of the profile to the necessary requirements, for example, in terms of good sliding properties, surface smoothness of the profile and the like.
  • the safety contact strip is symmetrical in a cross section to a longitudinal center plane.
  • This longitudinal center plane will then also form the plane of symmetry for the switching load, since the application requires a reliable switching at a switching load in an opening angle of about 90 ° regularly.
  • the safety contact strip according to the invention may have a substantially rectangular cross section with rounded longitudinal edges on the side on which the switching load is expected. As a much more advantageous, however, has proven a profile whose outer shell has a parabolic cross-section, wherein the apex of the parabola of the mounting side is arranged opposite lying.
  • the sealing lip is preferably attached tangentially in an embodiment of the invention. Protruding edges are thereby avoided and the introduction of force from the sealing lip in the profile is usually low. This avoids that, for example, in a freezing or pinching the sealing lip easily tears or even tears off. It has further proven to be useful, in particular in sealing lips whose approach is done on slightly curved portions of the shell profile to provide the free end of the sealing lips in a cross section with a turn. Due to this measure, it is possible to form a sealing lip, the free end of which covers the vertex of the parabolic profile, for example. Alternatively, the sealing lip can also receive a bend to the outside, possibly projecting beyond the profile.
  • the safety of the triggering of the safety contact strip according to the invention in direction-independent switching loads is further increased by the measure that at least one web carries the switching chamber spaced from a bottom of the profile on the mounting side of the profile. If a central web is provided, the switching chamber within the profile can be freely misjudged and set in such a way by this measure that a relatively small elastic deformation of the profile, also one from the side, leads to a reliable triggering of the switching contact.
  • two, possibly also more webs may be provided for this purpose, which is then thought of a symmetrical arrangement of the same.
  • These webs also preferably have a material thickness of about the other webs.
  • the jacket is provided in particular on the inside with longitudinal grooves. These grooves weaken the material thickness of the shell wall targeted so that it can also come in such areas to a buckling, as a folding of the profile, at least to a facilitated elastic deformation of the shell. These measures continue to take account of safe switching behavior and can at the same time such longitudinal grooves be useful for the extrusion process.
  • the switching chamber has an elliptical cross-section, in particular, the longitudinal axis of the cross section of the switching chamber is perpendicular to the plane of symmetry of the profile. Above and below this longitudinal axis, the conductive switching layers are then arranged.
  • Critical areas of safety contact bars in general are the locations where the conductive layers are provided with connection cables. It is preferred a separate contact, since then safety contact strips can be provided as endless profiles available.
  • the embedded metallic conductors can also take on the function of connection cables, for example, if these conductors are led out during manufacture accordingly.
  • a disadvantage here can be considered that then only ready-made safety contact strips of certain lengths are available.
  • the high standard of the safety contact strip according to the invention is further a cap according to claim 26 of the invention for a frontal closure of the safety contact, in which it is aimed that adapted to the profile of the safety contact strip in a plane annular circumferential shoulder is provided for a plant the front of the mantle and the bottom of the same.
  • annular peripheral shoulder is suitable for a tight bonding and / or welding to the end face of the jacket or of the floor.
  • the cap material has a hardness of less than 65 Shore, in particular less than 60 Shore, and thus is significantly softer compared to the other material chosen. This contributes when the material thickness of the cap is kept comparatively low.
  • the shoulder lips protruding for a bordering of the outer shell.
  • an outer lip covers the abutting edge against the outer jacket of the profile and optionally in turn with this glued or welded.
  • a very secure sealing of the front ends of the safety contact strip according to the invention is thus given.
  • projecting lips for an inner-side bordering of the outer shell have to take into account in their training on the webs of the profile and are optionally interrupted and are preferably formed as a simple protruding rod-like sections.
  • the outer lip on the outside of the outer shell is further provided in the embodiment of the cap according to the invention that undergoes by the encapsulation of the shell of this bias, which makes it a particularly good investment of the outer lip the cap and the surface of the coat comes.
  • the cap according to the invention can be provided that at least one sealing lip is provided on this upper side. Regularly, this sealing lip is slightly smaller than the sealing lip of a safety contact strip.
  • the arrangement of the cap-side sealing lip takes place within a radius of curvature of the sealing lip of the safety contact strip.
  • safety contact strip 1 has two conductive switching layers 2,3 in a closed switching chamber 4, which is disposed within an outer shell 5 of a profile 6.
  • the profile 6, the switching chamber 4 and the switching layers 2,3, each having at least one embedded conductor 7,8 are integrally formed.
  • a fitting piece 18 is further arranged for clamping or insertion in a C-holding profile, for example an aluminum profile.
  • the profile 6 made of a thermoplastic elastomer, a TPE material in that the conductive layers 2, 3 are made of an EPDM material, an ethylene / propylene-diene terpolymer, and that the at least one conductor 7, 8 embedded in the conductive layers 2, 3 is more metallic, for example a copper wire, a copper strand, a metal mesh or the like, which coextrudes materials and conductors preferably form the safety contact strip 1 according to the invention in one piece.
  • the hardness or the stiffness of the TPE profile 6 is set to a preferred level, in particular to a Shore hardness of 50 to 70, preferably 60.
  • a Shore hardness is a balance between stiffness and elastic behavior of the profile 6 achieved.
  • the switching chamber 4 in accordance with a cross section Fig.1 is kept free of spoke-like webs 9,10,11.
  • the webs 9,10,11 have approximately the same thicknesses, which move in the material thickness of the profile 6 substantially.
  • the outer shell 5 of the profile 6 the webs 9,10,11 within the profile 6 and the switching chamber 4 form a plurality of separate chambers 50,51,52 within the profile 6 from.
  • the outer jacket 5 of the profile 6 has a substantially parabolic cross section, the apex 12 of the attachment side according to arrow 13 is arranged opposite.
  • the vertex 12 lies within one Longitudinal center plane 14, which is here also the plane of symmetry for the safety contact strip 1 according to the invention.
  • the shell wall is reinforced from there in each case about the thickness of the webs 9,10 to the apex 12, so that a wide range around the apex 12 comparatively stable against the rest of the wall Sheath 5 is formed.
  • longitudinal grooves 19,20,21 and the concomitant material weakening of the casing wall 5 further contribute to the fact that the elastic deformation of the safety strip 1 according to the invention in a region between the starting points 15,16 of the webs 9,10 takes place on the casing wall 5 and the bottom 17.
  • the switching chamber 4 is correspondingly misunderstood and it comes through the Power transmission through the webs 9, 10, 11 to a safe response of the safety contact strip.
  • the switching chamber 4 which has received the switching layers 2, 3 in an insulating manner towards the interior of the profile 6, has a substantially elliptical cross-section.
  • the wall thickness of this switching chamber 4 is the lowest compared to the other wall thicknesses. It will thus deform the switching chamber 4 comparatively easily elastic, the deformation can be largely adjusted in particular by the hardness of the material for the wall of the switching chamber 4.
  • the longitudinal axis of the switching chamber 4 is perpendicular to the central longitudinal plane 14. Good symmetry properties, also with respect to the switching behavior at switching loads perpendicular to the plane of symmetry, are thereby ensured.
  • the switching surfaces 22,23 of the switching layers 2,3 are concave and the total cross section of the conductive layers 2,3 konkavkonvex so that a good adaptation or embedding is ensured in the elliptical inner cross-section of the switching chamber 4.
  • Fig.2 shows an end-side view of the safety contact strip 1 according to the invention according to arrow II in Fig.1 .
  • safety contact strips are preferably prefabricated, as it were, by the meter, which are then to be assembled with electrical connections 25 for the conductive layers.
  • electrical connections 25 for the conductive layers.
  • These are, for example, crimp connectors 25, which penetrate the wall of the switching chamber 4 with contact pins and which engage in an electrically connecting manner in the conductive layers 2, 3.
  • About connecting wires 26,27 then the electrical connection with an evaluation or the like can be closed.
  • the full length of the profile 6 can nevertheless be used, that is to say, the profile 6 can be used.
  • Height and depth of the cuts 28,29 are in this case to be dimensioned so that at an end-side deformation of the profile 6 in this in the depth of cut, indicated by the dashed line 30, a kinking occurs, so that the switching chamber 4 with there functional, conductive Layers 2,3, as it were offset over the longitudinal axis of the profile, performs the switching operation.
  • the switching chamber 4 can be released in terms of power.
  • FIG. 3 is a second embodiment of a profile 35 shown that formed in particular as a coextrudate largely corresponds to the profile of the first embodiment.
  • Adjoining the profile 35 is a sealing lip 36.
  • the sealing lip 36 is made of the same material as the profile 35, in particular a TPE material. It is the sealing lip 36 tangentially attached to the profile 35 and thus very securely connected to this.
  • the sealing lip 36 further on a bend 37, from which bend 37 and the free end 38 of the sealing lip 36 of the vertex 39 of the profile 35 is covered.
  • the sealing lip 41 according to FIG. 4 may therefore be provided, the sealing lip 41 according to FIG. 4 to manufacture from a particular smooth surface, permanently elastic material. It is in FIG. 4 attached to the profile 40, the sealing lip 41 made of other material consisting, but preferably the safety contact strip is made in one piece as coextrudate. In the exemplary embodiment, the safety contact strip according to the invention then coextrudes in one piece from four different materials, namely the material of the profile jacket 40, the sealing lip 41, the conductive switching layers and the metallic conductors embedded therein.
  • the sealing lip 42 and a portion around the apex 43 may consist in particular of a smooth surface, elastic material.
  • the local safety contact strip is preferably manufactured as a coextrudate.
  • the shell 45 of the profile 44 may also be provided that only in the manner of a surface coating the profile 45 has a particular smooth surface, elastic material and in particular from a single-grade plastic.
  • FIG. 6 shows a further embodiment of a safety contact strip 54 according to the invention without sealing lip.
  • the outer shell 55 of the profile 56 in turn has a substantially parabolic cross-section, symmetrical to a median plane 77.
  • the profile 56 is slightly to the center plane 77 out withdrawn.
  • the webs 59,60 are the other end connected to a switching chamber 61, which is again provided on the inside with two conductive layers 62,63.
  • a metallic conductor 64,65 each embedded asymmetrically to the center plane 57.
  • the conductors 64, 65 may be stretched in the conductive layers 62, 63 or meandered for better contact.
  • the switching chamber 61 is further supported by two webs 67,68.
  • the webs 59,60,67,68 61 separate chambers 69 to 72 are formed in connection with the switching chamber.
  • a fitting 73 is connected for clamping or insertion in particular a C-holding profile. It is the fitting 73 formed a cavity 74 enclosing. Its vertically rising side walls 75,76 are aligned with the outer walls of the webs 67,68.
  • the bottom 66 is at least partially sloping away from the central longitudinal plane 57, i. to the C-holding profile, formed so that when a pinching of the fitting 73 in the C-holding profile a support of the safety contact strip 54 is achieved under a bias.
  • the cap 80 for a front-side closing a safety contact strip according to the invention further explained.
  • the cap 80 has an annular circumferential shoulder 81 which is disposed in a plane which projects inwardly of the cap base 89. With a section 82, a connection to the bottom of a safety contact strip and with a portion 83 to the frontal surface of the outer shell of a safety contact strip.
  • the shoulder 81 projects an outer lip 84 for covering the abutting edge between an outer sheath and the shoulder 81. It is this lip 84 provided only covering the outer sheath so that this cap 80 can be easily placed on a C-holding profile.
  • cap 80 in a conventional manner with a spout 90 for passing through leads.
  • the so protected within the C-holding profile to an evaluation or the like can be performed.
  • the cap 80 further has two sealing lips 86, 87. These sealing lips 86, 87 are considerably shortened compared with the sealing lips 88 on a safety contact strip, see also FIG. 8 , However, since the sealing lips 87,88 overlap in the longitudinal direction of the safety contact strip in the extent of projecting the lip 84 in the embodiment shown, it comes with a depression of the sealing lip 88 to a good power transmission to the cap and thus the switching behavior of the safety contact strip in the end of the same further improved.
  • a safety contact strip for a better switching behavior, especially in the end region of a safety contact strip further contributes the measure to provide a cap material having a hardness of less than 65 Shore, in particular less than about 60 Shore.
  • the wall thicknesses of this cap 80 are kept comparatively low.

Landscapes

  • Push-Button Switches (AREA)
  • Contacts (AREA)
  • Making Paper Articles (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
EP00988649A 1999-12-16 2000-11-24 Sicherheitskontaktleiste Expired - Lifetime EP1409825B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE29921958U 1999-12-16
DE29921958U DE29921958U1 (de) 1999-12-16 1999-12-16 Sicherheitskontaktleiste
PCT/DE2000/004182 WO2001044611A2 (de) 1999-12-16 2000-11-24 Sicherheitskontaktleiste

Publications (2)

Publication Number Publication Date
EP1409825A2 EP1409825A2 (de) 2004-04-21
EP1409825B1 true EP1409825B1 (de) 2009-11-04

Family

ID=8082947

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00988649A Expired - Lifetime EP1409825B1 (de) 1999-12-16 2000-11-24 Sicherheitskontaktleiste

Country Status (11)

Country Link
US (1) US6740826B1 (es)
EP (1) EP1409825B1 (es)
AT (1) ATE447655T1 (es)
AU (1) AU2503901A (es)
CA (1) CA2405851C (es)
CZ (1) CZ300520B6 (es)
DE (2) DE29921958U1 (es)
ES (1) ES2336073T3 (es)
MX (1) MXPA02005916A (es)
PL (1) PL204393B1 (es)
WO (1) WO2001044611A2 (es)

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DE202012001554U1 (de) 2012-02-17 2013-05-24 Mayser Gmbh & Co. Kg Profil für eine Schaltleiste, Anschlussstück und elektrische Schaltleiste

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US8493081B2 (en) 2009-12-08 2013-07-23 Magna Closures Inc. Wide activation angle pinch sensor section and sensor hook-on attachment principle
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GB201302497D0 (en) * 2013-02-13 2013-03-27 Rehau Ltd Gasket
DE102016105164A1 (de) 2016-03-21 2017-09-21 Knorr-Bremse Gmbh Extrusionsprofil und Verfahren zum Herstellen desselben sowie Tür für ein Fahrzeug
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JP6996273B2 (ja) * 2017-12-14 2022-01-17 日立金属株式会社 戸先センサ
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010083800A3 (de) * 2009-01-20 2010-10-21 Aso Gmbh Antriebs- Und Steuerungstechnik Abschlussprofil
DE202012001554U1 (de) 2012-02-17 2013-05-24 Mayser Gmbh & Co. Kg Profil für eine Schaltleiste, Anschlussstück und elektrische Schaltleiste
EP2629312A1 (de) * 2012-02-17 2013-08-21 Mayser GmbH & Co. KG Profil für eine Schaltleiste, Anschlussstück und elektrische Schaltleiste

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WO2001044611A3 (de) 2002-02-28
US6740826B1 (en) 2004-05-25
WO2001044611A2 (de) 2001-06-21
DE50015784D1 (de) 2009-12-17
CZ300520B6 (cs) 2009-06-10
CA2405851A1 (en) 2002-10-10
PL355870A1 (en) 2004-05-31
CZ20022387A3 (cs) 2003-02-12
ATE447655T1 (de) 2009-11-15
EP1409825A2 (de) 2004-04-21
CA2405851C (en) 2008-09-23
PL204393B1 (pl) 2010-01-29
MXPA02005916A (es) 2003-10-14
ES2336073T3 (es) 2010-04-08
DE29921958U1 (de) 2001-04-26
AU2503901A (en) 2001-06-25

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