EP1554428B1 - Belt with an integrated monitoring mechanism - Google Patents

Belt with an integrated monitoring mechanism Download PDF

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Publication number
EP1554428B1
EP1554428B1 EP03808834A EP03808834A EP1554428B1 EP 1554428 B1 EP1554428 B1 EP 1554428B1 EP 03808834 A EP03808834 A EP 03808834A EP 03808834 A EP03808834 A EP 03808834A EP 1554428 B1 EP1554428 B1 EP 1554428B1
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EP
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Prior art keywords
belt
strand
strands
characterised
according
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EP03808834A
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German (de)
French (fr)
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EP1554428A1 (en
Inventor
Roland Eichhorn
Claudio De Angelis
Karl Weinberger
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Inventio AG
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Inventio AG
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Priority to EP02405891 priority
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Priority to EP03808834A priority patent/EP1554428B1/en
Priority to PCT/IB2003/004482 priority patent/WO2004035913A1/en
Publication of EP1554428A1 publication Critical patent/EP1554428A1/en
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Publication of EP1554428B1 publication Critical patent/EP1554428B1/en
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    • DTEXTILES; PAPER
    • D07ROPES; CABLES OTHER THAN ELECTRIC
    • D07BROPES OR CABLES IN GENERAL
    • D07B1/00Constructional features of ropes or cables
    • D07B1/14Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable
    • D07B1/145Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable comprising elements for indicating or detecting the rope or cable status
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00Other common features of elevators
    • B66B7/06Arrangements of ropes or cables
    • B66B7/062Belts
    • DTEXTILES; PAPER
    • D07ROPES; CABLES OTHER THAN ELECTRIC
    • D07BROPES OR CABLES IN GENERAL
    • D07B1/00Constructional features of ropes or cables
    • D07B1/22Flat or flat-sided ropes; Sets of ropes consisting of a series of parallel ropes
    • DTEXTILES; PAPER
    • D07ROPES; CABLES OTHER THAN ELECTRIC
    • D07BROPES OR CABLES IN GENERAL
    • D07B2201/00Ropes or cables
    • D07B2201/20Rope or cable components
    • D07B2201/2083Jackets or coverings
    • D07B2201/2087Jackets or coverings being of the coated type
    • DTEXTILES; PAPER
    • D07ROPES; CABLES OTHER THAN ELECTRIC
    • D07BROPES OR CABLES IN GENERAL
    • D07B2201/00Ropes or cables
    • D07B2201/20Rope or cable components
    • D07B2201/2095Auxiliary components, e.g. electric conductors or light guides

Abstract

The invention relates to a belt (43) comprising at least two fiber strands (41) which are provided with intertwisted synthetic fiber yarns and are aligned in a longitudinal direction for receiving force. Said strands (41) are disposed at a distance from each other along the longitudinal direction of the belt (43) and are embedded in a belt coating (45). At least one of the strands (41) comprises an electrically conductive indicator yarn (44) that is twisted along with the synthetic fiber yarns of the strand (41) and is located outside the center of the fiber bundle (41). The indicator yarn (44) has a breaking elongation (eult,Ind) which is smaller than the breaking elongation (eult,Trag) of individual synthetic fiber yarns of the strand (41) and can be contacted in order to electrically monitor the integrity thereof.

Description

  • The invention relates to a belt having a plurality of spaced synthetic fiber strands embedded in a belt sheath. Such belts are particularly suitable for use as a suspension or propellant in an on zugsanlage. Such a suspension is disclosed in DE 3934654A and is considered to be the closest prior art.
  • Running ropes are an important, heavily used machine element in conveyor technology, especially in elevators, in crane construction and in mining. Particularly complex is the stress of driven ropes, as used for example in elevator construction.
  • In conventional elevator systems, the car frame of a car guided in an elevator shaft and a counterweight are connected to one another via a plurality of steel strand cables. To raise and lower the cab and counterweight, the ropes pass over a traction sheave driven by a drive motor. The drive torque is impressed under frictional engagement with the respective rope section resting on the traction sheave over the wrap angle. The cables experience tensile, bending, compressive and torsional stresses. Depending on the situation, the resulting stresses have a negative effect on the rope condition. Due to the usually round cross-section of a steel strand cable, the cable can rotate around the wheels as it revolves and is thus subjected to bending in the most different directions.
  • In addition to the strength requirements for elevator systems for energy reasons also demand for the smallest possible masses. High-strength synthetic fiber ropes, for example made of aromatic Polyamides, especially aramids, with highly oriented molecular chains fulfill these requirements better than steel cables.
  • Ropes constructed from aramid fibers, with the same cross-section and same load-bearing capacity, have only a quarter to one-fifth of the specific rope weight in comparison to conventional steel cables. However, in contrast to steel, the aramid fiber has a much lower transverse strength in relation to the longitudinal resistance due to the rectification of the molecular chains.
  • These ropes constructed from aramid fibers are also subject to twisting phenomena and bending stresses, which can lead to fatigue or breakage of the rope.
  • In addition to the various ropes, there are also belts that are used industrially. Mainly belts are used by the automotive industry, for example as V-belts, or by the machine industry. Depending on the degree of wear such belts are steel reinforced. These are usually endless belts. Monitoring an endless belt is relatively expensive and is not used for cost reasons in the automotive sector. The automotive industry has therefore embarked on a life-cycle limitation on the belts used to ensure that a belt is replaced before it runs the risk of failure. Such a lifetime restriction is only suitable for large quantities, since the necessary preliminary investigations can be made here, and for belts that are easy to replace.
  • There are already elevator systems in which toothed belts are used, as described for example in the patent application entitled "Elevator with belt-like transmission means, in particular with V-ribbed belts, as suspension means and / or blowing agents", the same applicant as the present invention , A toothed belt is a form-fitting, slip-free transmission medium that, for example, rotates synchronously with a traction sheave. The load capacity of the teeth of the toothed belt and the number of meshing teeth determine the transmission capacity.
  • In order to create a belt that can be used as a full and above all reliable suspension or propellant, it must be ensured that fatigue of the belt and above all imminent danger of breakage can be seen.
  • A lifetime restriction, such as that imposed by the automotive industry, is less suitable for a belt to be used as a sling or propellant for an elevator.
  • Other means of monitoring, such as optical monitoring, have been found to be inadequate for belts because the strands of a belt are embedded in a belt sheath and thus invisible. Further monitoring methods such as X-ray monitoring or ultrasound monitoring are uneconomical when using a belt in the elevator system.
  • The invention aims to provide a belt whose condition can be monitored. In particular, it is an object of the invention to provide a belt having monitoring means and which can be used as a carrier or propellant, inter alia, for elevator systems.
  • This object is achieved according to the invention by a belt having the features specified in claim 1. The dependent claims contain expedient and advantageous developments and / or embodiments of the given by the features of claim 1 invention.
  • The invention is described in detail below with reference to embodiments illustrated in the drawings. It shows:
  • FIG. 1,
    a schematic view of an elevator system with a connected via a inventive strap with a counterweight cab;
    FIG. 2A,
    a side view of a traction sheave with a portion of a support belt, according to the invention;
    FIG. 2B,
    a cross-sectional view of a support belt, according to the invention;
    FIG. 2C,
    an enlarged section of a cross-sectional view of a support belt, according to the invention;
    FIG. 3A,
    an enlarged section of a cross-sectional view of another support belt, according to the invention;
    FIG. 3B,
    an enlarged section of a cross-sectional view of another support belt, according to the invention;
    FIG. 4,
    an enlarged section of a cross-sectional view of another support belt, according to the invention;
    FIG. 5,
    a cross-sectional view of a V-ribbed belt according to the invention;
    FIG. 6,
    a perspective view of a toothed belt according to the invention.
  • The same, or the same effect, constructive elements are provided in all figures with the same reference numerals, even if they are not executed in detail the same. The figures are not to scale.
  • According to FIG. 1, a cab guided in a shaft 1 hangs on a carrying belt 3 according to the invention (carrying belt), which preferably comprises fiber bundles of aramid fibers and which runs over a traction sheave 5 connected to a drive motor 4. On the car 2 is a Riemenendverbindung 6, to which the carrying strap 3 is attached with one end. The other end of the support belt 3 is fastened in the same way to a counterweight 7, which is also guided in the shaft 1. In the arrangement shown is a so-called 1: 1 suspension, which is characterized in that the inventive support strap 3 only in one Direction is curved, since it only rotates about a single traction sheave 5, without being deflected by other discs, as would be the case, for example, in a 2: 1 suspension.
  • The relatively low weight of carrying straps with plastic strands offers the advantage that in the case of elevator systems, the usual compensating straps can be dispensed with in part or entirely.
  • Under certain circumstances, a compensating belt can also be provided despite the use of belts with lightweight plastic strands. Such a compensating belt is then connected in a similar manner with its first end at the lower end of the car 2, from where the compensating belt leads, for example, over the shaft bottom 10 placed deflection rollers to the counterweight 7 out.
  • To increase the safety of systems using belts, a monitoring system should be provided. Research has shown that monitoring the belt shroud does not provide reliable results. Cracks or fatigue of the strands, which can impart longitudinal strength to the belt, may go unnoticed when monitoring the belt jacket alone and result in a sudden failure of a belt.
  • Therefore, a direct monitoring of the strands seems to be more suitable. The problem with such direct monitoring, however, is that the belt elongations occurring in the belt around a traction sheave are relative are small. The latter is due to the fact that the belt thickness is usually chosen to be relatively low with respect to typical applications in elevator installations, for example compared to the thickness of a corresponding round cross-section supporting cable suitable for the same application. For purely geometric reasons, a strand running in the belt undergoes a substantially lower bending strain when circulating around a traction sheave under load than a strand in a correspondingly designed rope under the same load. Another special feature of strands reinforced with strands compared to a rope formed from strands resulting from the internal structure of the belt or the rope. While the strands in the belt are insulated from each other in a belt sheath and therefore do not touch each other, strands in a rope are usually stranded such that they touch a plurality of adjacent strands. Under load of the rope, jamming can occur, in particular at points of contact of adjacent strands, which is associated with a particularly high bending elongation of the strands at the contact points. Corresponding jamming does not occur for the straps insulated from one another in a belt under a corresponding load of the belt. Compared with the conditions that are characteristic of ropes, monitoring a belt must be correspondingly sensitive and accurate. A solution for monitoring belts is not yet known.
  • A belt 13 according to the invention for use in an elevator installation is shown in FIGS. 2A to 2C. The belt 13 comprises at least two strands 12 with twisted synthetic fiber yarns, which are for receiving power in Longitudinal are designed. The strands 12 are parallel to each other and are arranged at a distance X to each other. The strands 12 are embedded in a common belt casing 15. At least one of the strands 12 comprises an electrically conductive indicator yarn 14 which is rotated together with the synthetic fiber yarns of the strand 12 and contains fibers (filaments) of an electrically conductive material, for example of carbon, hard metals such as tungsten carbide, boron or electrically conductive plastics. The indicator-yarn yarn 14 is located outside the center of the strand 12, as seen in Figure 2C. In order to ensure that the indicator yarn 14 breaks earlier or shows signs of fatigue than the synthetic fiber strands of the strand 12, the breaking elongation (ε ult, Ind ) of the indicator yarn 14 must be smaller than the breaking elongation (ε ult, support ) of the individual Synthetic fiber yarns of the strand 12. The elongation at break ε ult, Ind and the elongation at break ε ult, Trag are material sizes . Furthermore, the indicator yarn 14 must be contactable to allow electrical monitoring of the integrity of the indicator yarn 14.
  • There are other conditions that need to be considered to allow safe monitoring of the belt 13.
  • It is important that the position of the indicator yarn 24 within the braid 21 be selected so that the filaments of the indicator yarn 24 become fatigued or break earlier than a synthetic fiber strand of the braid 21. In an extreme case, the indicator yarn 24 lies on the outer periphery the strand 21, precisely on the side of the belt 23 which is subjected to the greatest bending load, as shown in FIG Hatching shown. This ensures that the indicator yarn 24 always experiences a bending load which is at least as great as the greatest bending load of a synthetic fiber yarn of the strand 21. The synthetic fiber yarns are schematically indicated in FIG. 3A as circles with a white circumference. In an arrangement according to FIG. 3A, it is sufficient to specify that the breaking elongation ε ult, Ind of the indicator yarn 24 is smaller than the breaking elongation ε ult, carrying the individual synthetic fiber yarns of the strand 21. The strands 21 are embedded in a belt casing 25.
  • Another belt 33 according to the invention is shown in FIG. 3B. There, the indicator yarn 34 is inside the strand 31 on a side seen from the strand center, which lies in the direction of the side of the belt 33 which is subjected to the greatest bending load, as shown in Figure 3B with reference to the hatching. In such an arrangement, the five hatched synthetic fiber strands experience a bending load that is greater than or equal to the bending load experienced by the indicator yarn 34. The strands 31 are embedded in a belt casing 35. In order to ensure that the indicator yarn 34 shows or breaks fatigue phenomena before one of the synthetic fiber strands of the strand 31 fatigues or breaks, the following condition should be satisfied: the elongation at break ε ult , Ind of the indicator yarn 34 must be one Factor A is smaller than the breaking elongation ε ult , carrying the individual synthetic fiber yarns of the strand 31, wherein the factor A depends inter alia on the position of the indicator yarn 34 within the strand 31. Typically, A has the following condition: 0.2 <A <0.9, and preferably 0.3 <A <0.85.
  • However, such arrangements are complicated to manufacture, since it must be ensured that the strand are embedded in the belt sleeve so that the indicator yarn is always directed "up" (position between 9 o'clock and 15 o'clock) and straight in parallel to Lengthwise of the belt extends. Experiments have shown that this is not feasible with reasonable effort, among other things, because the individual synthetic fiber yarns of the strands are twisted to give the belt the desired longitudinal strength.
  • According to the invention, it is possible to formulate the following conditions which must be met in order to enable safe monitoring of the belt:
  1. 1. The material of the indicator yarns and the material of the synthetic fiber yarns of the strand must be selected so that the breaking elongation ε ult, Ind of the indicator yarns is smaller than the breaking elongation ε ult, carrying the individual synthetic fiber yarns of the strands;
  2. 2. for manufacturing reasons, the indicator yarn must be twisted together with the synthetic fiber yarns of the strand; Thus, the indicator yarn forms an intimate connection with the surrounding synthetic fiber yarns and always experiences a bending stress that is comparable to the bending stress of the surrounding synthetic fiber strands. The indicator yarn thus runs helically along the longitudinal direction of the belt. If the indicator yarn is not on the outer circumference of the fiber bundle, the following additional condition applies:
  3. 3. The further the indicator yarn lies inside the strand, the smaller must be the breaking elongation ε ult, Ind of the indicator yarn;
  • Optimization considerations and simulations have shown that preferably the following condition must be met in order to be able to ensure reliable monitoring taking into account the bending expansions of the belt or of the yarns: ε eff , support * ε ult . Ind ε eff , Ind * ε ult . support 0.88
    Figure imgb0001

    for the elongation at the indicator yarn radius R Ind (measured from the center of the strand as defined in Fig. 2C): ε eff , Ind = 2 R Ind D + d
    Figure imgb0002

    wherein for elongation at the maximum synthetic fiber yarn radius R support (measured from the center of the strand as defined in FIG. 2C): ε eff , support = 2 R support D + d
    Figure imgb0003
    With
  • ε ult, Ind :
    Elongation at break of the indicator yarn or the fibers of the indicator yarn
    ε ult, carrying :
    Elongation at break of the synthetic fiber yarn or synthetic fibers:
    D:
    Drive wheel diameter
    d:
    Belt thickness (if the strand is half the belt thickness)
    R Ind :
    radial distance of the indicator yarn as measured from the center of the strand (see Fig. 2C)
    R support:
    radial distance of the outermost synthetic fiber yarn measured from the center of the strand (see Fig. 2C)
  • From the above inequality, it can be determined how to choose the elongation at break, ε ult, Ind for the indicator yarn, depending on the position of the indicator yarn (characterized by R Ind ) inside the strand so that the filaments of the indicator yarn at a load of the belt break earlier than the synthetic fiber yarns surrounding the indicator yarn of the corresponding strand. The factor 0.88 in the inequality is an empirical value determined in such a way that the behavior of the indicator yarn allows with reasonable certainty conclusions about the fracture behavior of the synthetic fiber yarns. However, the above inequality is only valid if the indicator yarn is not in the center of the strand and consequently the effect of the bending strains is dominant for the fracture behavior of the indicator yarn. When the indicator yarn is located in the center or near the center of the strand, the fracture behavior of the indicator yarn is determined less by the belt's flexing strain than by the tensile load. In the latter case, there are conditions for the indicator yarn at a load of the belt, the load of a yarn in a straight, only By train loaded belt or in a straight, only loaded by train rope correspond. In this limit case, there is sufficient sensitivity of the indicator yarn when the inequality ε ult . Ind ε ult . support 0.88
    Figure imgb0004
    is satisfied. The limit value 0.88 is determined empirically in order to allow reliable conclusions to be drawn regarding damage to the synthetic fiber yarns.
  • For example, aramid synthetic fiber yarns can be used in the present invention. Aramid has a high alternating bending strength and a high specific elongation at break ε ult, Trag . The strands of the belt may have opposite directions of rotation.
  • For example, carbon fibers have proved to be particularly suitable as filaments for the indicator yarn, since they are brittle (ie small elongation at break ε ult, Ind ) as aramid and because they are electrically conductive and also inexpensive to produce.
  • The belt casing comprises a plastic material. The following plastic materials are particularly suitable as belt sheath: rubber, neoprene rubber, polyurethane, polyolefin, polyvinyl chloride or polyamide.
  • According to the invention, the belt casing may have a dumbbell-shaped, cylindrical, oval, concave, rectangular or wedge-shaped cross-sectional shape.
  • Another embodiment of the invention is shown in Figure 4 as a schematic cross section. The belt 43 comprises a total of four parallel strands 41. Each strand 41 comprises a plurality of synthetic fiber yarns and one indicator yarn 44, which are twisted together. The indicator yarns 44 in each strand 41 extend helically along the longitudinal direction of the belt 43. In the example shown, the indicator yarns 44, viewed from left to right, are approximately at 12 o'clock, 1 o'clock, 9 o'clock and 4 o'clock. Cutting the same belt 43 at a different location would result in a different image as far as the location of the indicator yarns 44 is concerned.
  • The invention can be applied to all belts having synthetic fiber strands for reinforcement. Examples are: flat belts, poly V belts, V-ribbed belts 53 (as shown, for example, in FIG. 5), or (trapezoidal) toothed belts 63 (as shown, for example, in FIG. 6).
  • A V-ribbed belt 53 according to the invention, as shown in FIG. 5, has a whole number of parallel strands 51 which are embedded in a belt casing 55.
  • A trapezoidal toothed belt 63 according to the invention, as shown in FIG. 6, has a number of parallel strands 61 which are embedded in a belt casing 65.
  • According to the invention, a synthetic fiber strand may comprise a plurality of indicator yarns. In a further embodiment, the belt has a plurality of parallel strands. A first strand comprises a first indicator yarn having a first elongation at break ε ult, Ind1 . A second strand comprises a second indicator yarn having a second elongation at break ε ult, Ind2 . If the following condition ε ult, Ind 2 > ε ult, ind 1 holds , then the first carbon fiber responds first, since this first carbon fiber is more sensitive. Depending on the elevator installation, a predetermined reaction can be triggered in this case. For example, a service call may be issued, or elevator operation may be restricted. Failure of the second carbon fiber, so for example, the elevator operation can be completely adjusted.
  • It is also possible for a number of strands to contain one indicator yarn each having the same elongation at break ε ult, Ind , and the increase in the number of strands which has failed serves as the triggering criterion for a suitable reaction.
  • According to the invention, an indicator circuit can be used which metrologically determines whether the properties of a carbon fiber have changed, or whether a carbon fiber has been interrupted. In this case, for example, the carbon fibers of two fiber bundles may be conductively connected to one another at one end of the belt. For example, at the other end of the belt, you can make a resistance measurement to detect changes. The indicator circuit may include, for example, one or more comparators and one or more analog-to-digital converters have that connect to the usually digitally executed elevator control.
  • For the first time, the invention enables a reliable and early detection of fatigue and fractures of the fiber bundles, which impart the carrying strength to a belt. Such a belt can be replaced in time.
  • Claims (8)

    1. Belt (3; 13; 23; 33; 43; 53; 63) with at least two strands (12; 21; 31; 41; 51; 61), which comprise synthetic fibre threads twisted in themselves and which are designed for acceptance of force in longitudinal direction (16), wherein the strands (12; 21; 31; 41; 51; 61) are arranged parallel to one another along the longitudinal direction (66) of the belt (3; 13; 23; 33; 43; 53; 63) and at a spacing (X) relative to one another and are embedded in a belt casing (15; 25; 35; 45; 55; 65), characterised in that at least one of the strands (12; 21; 31; 41; 51; 61) comprises an electrically conductive indicator thread (14; 24; 34; 44;) which is twisted together with the synthetic fibre threads of the strand (12; 21; 31; 41; 51; 61), wherein the indicator thread (14; 24; 34; 44)
      - has a breaking elongation (εult,Ind) which is smaller than the breaking elongation (εult,Trag) of individual synthetic fibre threads of the strand (12; 21; 31; 41; 51; 61) and
      - can be electrically contacted so as to enable an electrical monitoring of the integrity of the indicator thread (14; 24; 34; 44).
    2. Belt (3; 13; 23; 33; 43; 53; 63) according to claim 1, characterised in that the indicator thread (14; 24; 34; 44) is more brittle and less resilient than the synthetic fibre thread of the strand (12; 21; 31; 41; 51; 61).
    3. Belt (3; 13; 23; 33; 43; 53; 63) according to claim 1 or 2, characterised in that the maximum effective elongation of the indicator thread (14; 24; 34; 44) under load is less than the breaking elongation (εult,Trag) of the individual synthetic fibre threads of the strand (12; 21; 31; 41; 51; 61).
    4. Belt (3; 13; 23; 33; 43; 53; 63) according to claim 1 or 2, characterised in that the belt (3; 13; 23; 33; 43; 53; 63) is designed for the purpose of running at least partly around a pulley (11) which has a radius less than 100 mm, preferably less than 50 mm.
    5. Belt (3; 13; 23; 33; 43; 53; 63) according to claim 1, 2 or 3, characterised in that the indicator thread (14; 24; 34; 44) can be electrically contacted by means of contact means which can be fastened to one or both ends of the belt.
    6. Belt (3; 13; 23; 33; 43; 53; 63) according to one of the preceding claims, characterised in that it is a flat belt, poly-V-belt, V-ribbed belt or (trapezium) cogged belt.
    7. Belt (3; 13; 23; 33; 43; 53; 63) according to one of the preceding claims, characterised in that the belt (3; 13; 23; 33; 43; 53; 63) is designed for use in a lift installation as support means or drive means.
    8. Belt (3; 13; 23; 33; 43; 53; 63) according to one of the preceding claims, characterised in that the indicator thread (14; 24; 34; 44) is arranged outside the centre of the strand (12; 21; 31; 41; 51; 61).
    EP03808834A 2002-10-17 2003-10-10 Belt with an integrated monitoring mechanism Active EP1554428B1 (en)

    Priority Applications (4)

    Application Number Priority Date Filing Date Title
    EP02405891 2002-10-17
    EP02405891 2002-10-17
    EP03808834A EP1554428B1 (en) 2002-10-17 2003-10-10 Belt with an integrated monitoring mechanism
    PCT/IB2003/004482 WO2004035913A1 (en) 2002-10-17 2003-10-10 Belt with an integrated monitoring mechanism

    Applications Claiming Priority (1)

    Application Number Priority Date Filing Date Title
    EP03808834A EP1554428B1 (en) 2002-10-17 2003-10-10 Belt with an integrated monitoring mechanism

    Publications (2)

    Publication Number Publication Date
    EP1554428A1 EP1554428A1 (en) 2005-07-20
    EP1554428B1 true EP1554428B1 (en) 2007-03-21

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    US (1) US7326139B2 (en)
    EP (1) EP1554428B1 (en)
    JP (1) JP2006508004A (en)
    KR (1) KR101128313B1 (en)
    CN (1) CN100580176C (en)
    AT (1) AT357554T (en)
    AU (1) AU2003264823B2 (en)
    BR (1) BR0315360B1 (en)
    CA (1) CA2500437C (en)
    DE (1) DE50306867D1 (en)
    DK (1) DK1554428T3 (en)
    ES (1) ES2285258T3 (en)
    HK (1) HK1080914A1 (en)
    MX (1) MXPA05004030A (en)
    MY (1) MY134592A (en)
    NO (1) NO325262B1 (en)
    NZ (1) NZ539247A (en)
    PT (1) PT1554428E (en)
    WO (1) WO2004035913A1 (en)

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    MXPA05004030A (en) 2005-06-08
    US7326139B2 (en) 2008-02-05
    AT357554T (en) 2007-04-15
    US20050245338A1 (en) 2005-11-03
    CN1705789A (en) 2005-12-07
    CA2500437A1 (en) 2004-04-29
    NO20052371L (en) 2005-05-13
    DK1554428T3 (en) 2007-06-18
    CN100580176C (en) 2010-01-13
    KR101128313B1 (en) 2012-03-23
    AU2003264823A1 (en) 2004-05-04
    WO2004035913A1 (en) 2004-04-29
    KR20050055768A (en) 2005-06-13
    HK1080914A1 (en) 2007-06-29
    NZ539247A (en) 2007-01-26
    BR0315360A (en) 2005-08-23
    BR0315360B1 (en) 2013-09-03
    JP2006508004A (en) 2006-03-09
    ES2285258T3 (en) 2007-11-16
    AU2003264823B2 (en) 2009-12-03
    NO325262B1 (en) 2008-03-17
    PT1554428E (en) 2007-05-31
    EP1554428A1 (en) 2005-07-20
    DE50306867D1 (en) 2007-05-03
    CA2500437C (en) 2011-03-01
    MY134592A (en) 2007-12-31

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