EP1029973A1 - Détection de l'endommagement de la gaine d'un câble en fibres synthétiques - Google Patents

Détection de l'endommagement de la gaine d'un câble en fibres synthétiques Download PDF

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Publication number
EP1029973A1
EP1029973A1 EP00100816A EP00100816A EP1029973A1 EP 1029973 A1 EP1029973 A1 EP 1029973A1 EP 00100816 A EP00100816 A EP 00100816A EP 00100816 A EP00100816 A EP 00100816A EP 1029973 A1 EP1029973 A1 EP 1029973A1
Authority
EP
European Patent Office
Prior art keywords
rope
sheath
predetermined breaking
damage
breaking element
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.)
Granted
Application number
EP00100816A
Other languages
German (de)
English (en)
Other versions
EP1029973B1 (fr
Inventor
Claudio Dipl.-Ing. De Angelis
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.)
Inventio AG
Original Assignee
Inventio AG
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 Inventio AG filed Critical Inventio AG
Priority to EP00100816A priority Critical patent/EP1029973B1/fr
Publication of EP1029973A1 publication Critical patent/EP1029973A1/fr
Application granted granted Critical
Publication of EP1029973B1 publication Critical patent/EP1029973B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/14—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable
    • D07B1/145—Ropes 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/16—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics
    • D07B1/162—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics characterised by a plastic or rubber enveloping sheathing
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2095—Auxiliary components, e.g. electric conductors or light guides
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2501/00—Application field
    • D07B2501/20—Application field related to ropes or cables
    • D07B2501/2007—Elevators

Definitions

  • the invention relates to a device for damage detection for the rope sheath of a synthetic fiber rope, according to the generic term of claim 1.
  • a synthetic fiber rope is a textile product made of rope yarns from natural or chemical fibers, either by rope formation without rotation, through two or multi-stage stranding and / or Wrapping or is made by braiding.
  • the Rope sheath protects the rope structure from so-called Synthetic fiber strands and produces the with driven ropes necessary traction ability. It preferably consists of abrasion-resistant plastic material and is adherent and / or positively connected to the outer strand layer.
  • the rope sheath envelops either the rope as a whole or the outermost rope strands with a plastic sheath and form overall the rope sheath. Especially when running over rollers and / or driven ropes, the rope sheath is subject to high abrasive wear.
  • a sheathed synthetic fiber rope is known as a supporting element for lifts.
  • the rope sheath is divided coaxially in color. If the sheath is worn appropriately, the color underneath will appear, which is then regarded as the presence of advanced rope wear.
  • This damage report has proven itself in the event of signs of wear on the cable sheath, but it is only suitable to a limited extent for locally limited damage, for example, by unintentional contact with sharp edges or the like.
  • the predetermined breaking element is a permanent measurement Monitoring of the rope sheath possible. To do this, a signal is sent over a certain rope length transmitted through the predetermined breaking element. If this connection is interrupted, the cable sheathing from damaged outside. Through real-time monitoring, a visual control is only necessary if that Monitoring device detected a cable sheath damage.
  • the predetermined breaking element can be used as an electrical conductor, light guide or the like.
  • Essential when choosing the conductor material used here is a Fatigue strength that is at least that of the cable construction corresponds, so that an operational Material failure is excluded.
  • the predetermined breaking element can be an electrical one Conductor in the form of a carbon fiber or a metal wire be trained through which a control signal is sent. If the conductive connection is broken, no signal is given transmitted, which can then be displayed in a suitable manner.
  • the transmission element is preferably around the entire rope or the strands of the outer layer wrapped around and from that preferably cable sheath applied by pressure spraying covered.
  • inner rope sheath layer arranged and from the second Rope sheath layer must be covered. It is Breakaway element completely embedded in the cable sheath and open the synthetic fiber strands have additional transverse forces during the run the rope over rollers are avoided.
  • Embodiments of the invention in which the conductor element high-strength material is formed also offer the additional advantage of consolidation or reinforcement of the Rope sheath. This allows the fatigue strength as well the abrasion behavior of the rope sheath can be improved.
  • FIG. 1 shows the structure a sheathed aramid fiber rope 1 made of aramid fiber strands 2, which together with fillets 3 around a core 4 in layers are arranged.
  • a friction-reducing, preferably profiled intermediate jacket 7 attached between an inner strand layer 5 and one outermost strand layer 6 .
  • the outermost strand layer 6 is through the cable sheath 8, preferably made of polyurethane or polyamide.
  • To the Outermost strand layer 6 is here over the entire rope length Copper wire 9 helically, for example with a Gradient 10 of 1-4 turns per 60 mm rope length wrapped around.
  • the cable sheath 8 is over the copper wire 9 extruded so that the copper wire 9 in the Cable sheath material is embedded and thus covered.
  • these can basically in any way in the rope sheath on the rope be arranged as long as this is a signal-transmitting Establish a connection over a certain rope length and a mutual touching of the predetermined breaking elements by them surrounding rope sheath material is excluded.
  • FIG. 2 shows the monitoring of the measurement in FIG. 1 shown aramid fiber rope 1 shown.
  • s predetermined breaking element
  • the copper wire 9 over the Rope 10 or a certain section of rope length Established conductive connection is intact can in one Control circuit 11, for example, an electrical voltage the two ends of the transmission element are created.
  • a battery is suitable for this purpose, for example 12 or a voltage generator.
  • an ammeter 13 can then be recognized whether a current through the copper wire 9th flows or not.
  • Control circuit 21 damage to the cable sheath 8 with the help one connected to the monitoring circuit 11 Control circuit 21 can be recognized.
  • a suitable one for this Circuit is known for example from EP 0 731 209 A1 become.
  • Control circuit 21 is switched on via a voltage supply 14 constant current 15 in the transmission element or elements 9 fed, for each transmission element 9, a resistor R1 to Rn.
  • a low pass filter 16 filters the incoming impulses and leads them to a threshold switch 17 to.
  • the threshold switch 17 compares the measured Tensions. If specific limit values are exceeded, i.e. H. due to severing the transmission elements 9 the resistance is so great that the permissible voltage value is exceeded. This exceeding the limit will stored by a non-volatile memory 18.
  • This Memory 18 can be deleted by means of a reset button 19 or he passes his information to a logic 20, which is connected to the elevator control.
  • Each transmission element 9 is wired accordingly and constantly checked. As soon as damage has occurred, switches the elevator control the elevator by moving the elevator car moves to the evacuation position and locks.

Landscapes

  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
EP00100816A 1999-01-22 2000-01-17 Détection de l'endommagement de la gaine d'un câble en fibres synthétiques Expired - Lifetime EP1029973B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP00100816A EP1029973B1 (fr) 1999-01-22 2000-01-17 Détection de l'endommagement de la gaine d'un câble en fibres synthétiques

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP99810049 1999-01-22
EP99810049 1999-01-22
EP00100816A EP1029973B1 (fr) 1999-01-22 2000-01-17 Détection de l'endommagement de la gaine d'un câble en fibres synthétiques

Publications (2)

Publication Number Publication Date
EP1029973A1 true EP1029973A1 (fr) 2000-08-23
EP1029973B1 EP1029973B1 (fr) 2003-09-10

Family

ID=26070436

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00100816A Expired - Lifetime EP1029973B1 (fr) 1999-01-22 2000-01-17 Détection de l'endommagement de la gaine d'un câble en fibres synthétiques

Country Status (1)

Country Link
EP (1) EP1029973B1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1275608A1 (fr) * 2001-07-12 2003-01-15 Inventio Ag Dispositif pour la détection de l'usure des câbles porteurs
EP1357073A1 (fr) * 2000-12-07 2003-10-29 Mitsubishi Denki Kabushiki Kaisha Detecteur de l'allongement d'un cable principal d'ascenseur
EP1886957A1 (fr) 2006-08-11 2008-02-13 Inventio Ag Courroie d'élévateur pour un élévateur et procédé de fabrication d'une telle courroie d'élévateur
DE202008001786U1 (de) 2007-03-12 2008-12-24 Inventio Ag Aufzugsanlage, Tragmittel für eine Aufzugsanlage und Vorrichtung zur Herstellung eines Tragmittels
CN102733211A (zh) * 2011-04-07 2012-10-17 祝向辉 一种能检测自身钢丝破断的预应力钢丝拉索及其制作方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6256841B1 (en) 1998-12-31 2001-07-10 Otis Elevator Company Wedge clamp type termination for elevator tension member

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE684029A (fr) * 1965-07-13 1967-01-12
EP0731209A1 (fr) * 1995-03-06 1996-09-11 Inventio Ag Dispositif de détection de la fin de la durée d'utilisation pour câbles en fibres synthétiques

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE684029A (fr) * 1965-07-13 1967-01-12
EP0731209A1 (fr) * 1995-03-06 1996-09-11 Inventio Ag Dispositif de détection de la fin de la durée d'utilisation pour câbles en fibres synthétiques

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1357073A1 (fr) * 2000-12-07 2003-10-29 Mitsubishi Denki Kabushiki Kaisha Detecteur de l'allongement d'un cable principal d'ascenseur
EP1357073A4 (fr) * 2000-12-07 2006-05-31 Mitsubishi Electric Corp Detecteur de l'allongement d'un cable principal d'ascenseur
EP1275608A1 (fr) * 2001-07-12 2003-01-15 Inventio Ag Dispositif pour la détection de l'usure des câbles porteurs
AU2002300075B9 (en) * 2001-07-12 2003-06-12 Inventio Ag Suspension rope wear detector
US6653943B2 (en) 2001-07-12 2003-11-25 Inventio Ag Suspension rope wear detector
AU2002300075B2 (en) * 2001-07-12 2007-04-26 Inventio Ag Suspension rope wear detector
EP1886957A1 (fr) 2006-08-11 2008-02-13 Inventio Ag Courroie d'élévateur pour un élévateur et procédé de fabrication d'une telle courroie d'élévateur
DE202008001786U1 (de) 2007-03-12 2008-12-24 Inventio Ag Aufzugsanlage, Tragmittel für eine Aufzugsanlage und Vorrichtung zur Herstellung eines Tragmittels
CN102733211A (zh) * 2011-04-07 2012-10-17 祝向辉 一种能检测自身钢丝破断的预应力钢丝拉索及其制作方法

Also Published As

Publication number Publication date
EP1029973B1 (fr) 2003-09-10

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