EP1560779A1 - Method for ensuring and measuring the internal tension of an elevator hoisting rope, and elevator permitting the use of said method - Google Patents

Method for ensuring and measuring the internal tension of an elevator hoisting rope, and elevator permitting the use of said method

Info

Publication number
EP1560779A1
EP1560779A1 EP03750762A EP03750762A EP1560779A1 EP 1560779 A1 EP1560779 A1 EP 1560779A1 EP 03750762 A EP03750762 A EP 03750762A EP 03750762 A EP03750762 A EP 03750762A EP 1560779 A1 EP1560779 A1 EP 1560779A1
Authority
EP
European Patent Office
Prior art keywords
rope
elevator
hoisting
tightening
twisting
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
EP03750762A
Other languages
German (de)
French (fr)
Other versions
EP1560779B1 (en
Inventor
Jorma Mustalahti
Esko Aulanko
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.)
Kone Corp
Original Assignee
Kone Corp
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 Kone Corp filed Critical Kone Corp
Publication of EP1560779A1 publication Critical patent/EP1560779A1/en
Application granted granted Critical
Publication of EP1560779B1 publication Critical patent/EP1560779B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/12—Checking, lubricating, or cleaning means for ropes, cables or guides
    • B66B7/1207—Checking means
    • B66B7/1215—Checking means specially adapted for ropes or cables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B19/00—Mining-hoist operation
    • B66B19/02—Installing or exchanging ropes or cables

Definitions

  • the present invention relates to a method as defined in the preamble of claim 1 for ensuring the internal tightness of an elevator hoisting rope and to an elevator as defined in claim 9.
  • the object of the present invention is to overcome the above-mentioned drawbacks and to provide a dependable, reliable, easy-to-implement and fast method for ensuring and measuring a sufficient tightness of an eleva- tor hoisting rope, and thus to reduce the risk the hoisting ropes being damaged in connection with elevator operation, thereby also improving the operational dependability, reliability and safety of the elevator.
  • a further object of the invention is to achieve an elevator with re-tightened hoisting ropes.
  • the method of the invention for ensuring and measuring the internal tightness of an elevator hoisting rope is characterized by what is disclosed in the characterization part of claim 1.
  • the elevator of the invention is characterized by what is disclosed in the characterization part of claim 9.
  • Other embodiments of the invention are characterized by what is disclosed in the other claims .
  • a primary area of application of the invention is elevators designed for freight/passenger transportation.
  • Another primary area of application is in elevators having relatively thin twisted hoisting ropes provided with a steel core.
  • Fig. 1 presents a simplified and oblique top view of an elevator solution applying the invention.
  • Fig. 2 presents a cross-sectional view of a hoisting rope applicable in the solution of the invention
  • Fig. 3 presents a cross-sectional view of the hoisting rope in Fig. 2 in a situation where the rope has been partly untwisted
  • Fig. 4 presents the hoisting rope in a simplified side view in a situation where the rope has been partly untwisted
  • Fig. 1 presents a simplified and oblique top view of an elevator solution applying the invention.
  • Fig. 2 presents a cross-sectional view of a hoisting rope applicable in the solution of the invention
  • Fig. 3 presents a cross-sectional view of the hoisting rope in Fig. 2 in a situation where the rope has been partly untwisted
  • Fig. 4 presents the hoisting rope in a simplified side view in a situation where the rope has been partly untwisted
  • Fig. 5 illustrates an oblique side view of a situation where the tightness of the hoisting rope is being measured.
  • Fig. 1 presents a typical elevator solution in which the method of the invention for ensuring and measuring the internal tightness of an elevator hoisting rope can be used.
  • the elevator is preferably an elevator without machine room and having a hoisting machine 3 connected via a traction sheave 5 to a set of hoisting ropes, which consists of hoisting ropes 9 running parallel to each other and supporting a counterweight 2 and an elevator car 1 moving on their respective tracks, i.e. along guide rails 8 and 7.
  • the parallel hoisting ropes 9 are anchored to a fixed starting point 10, from which the ropes go downwards towards a diverting pulley 6 mounted in conjunction with the elevator car 1, at a position substantially below the elevator car.
  • the hoist- ing ropes From the diverting pulley 6, the hoist- ing ropes go to a second corresponding diverting pulley placed at the other lower edge of the elevator car and, having passed around this second diverting pulley, they go upwards to the traction sheave 5 of the elevator machine 3 disposed in the in the upper part of the elevator shaft. Having passed around the traction sheave 5 by its top side, the hoisting ropes go again down to diverting pulleys 6 mounted in conjunction with the counterweight 2, passing around these pulleys by their lower side and then returning again up to their fixed end point 11.
  • the functions of the elevator are controlled by a control system 4.
  • Fig. 2 and 3 present cross-sectional views of a hoisting rope applicable in the solution of the invention.
  • the hoisting rope 9 is in a correct state of tightness, with all its strands tightly twisted according to their braiding around the core strand.
  • Fig. 3 again illustrates a situation where the braiding of the rope has become loose. The figure shows the rope with an exaggerated loosening to provide a sufficient visual impression.
  • the six strands 12 forming the sheath of the rope 9, each of which in this case consists of nineteen wires 13 twisted around each other have come loose of the core strand 14 forming the core of the rope.
  • Fig. 4 presents a hoisting rope 9 thus loosened, in side view and simplified for visual clarity.
  • the core strand 14 is straight, but a loosened strand 12 has grown in length in the longitudinal direction 15 of the rope because, due to a diminished contact and interlock between strands, there has also appeared between the twists of the strand 12 a clearance 15a, which has an effect in the longitudinal direction 16 of the rope.
  • the method of the invention ensures a structural tightness and tension of the hoisting ropes 9 sufficient to keep the rope together, to ensure that after start-up of the elevator there will appear no accumu- lated looseness that would make the rope susceptible to damage. Sufficient tightness of the rope is ensured at installation time. At the end of the installation operation, when the installation has been finished in other respects, the mutual tightness of all the paral- lei hoisting ropes 9 is first ensured by equalizing the spring lengths if necessary and performing a sufficient number of equalizing runs if necessary.
  • the second ends of the rope are released from their an- chorage and all the hoisting ropes 9 are tightened by twisting them from the free end and over a free straight portion as long as possible in the same direction with the pitch of the rope helix by a number of turns required to achieve a sufficient tightness.
  • This tightening action is continued until the tighten- ing effect is propagated after the straight portion even over the diverting and other pulleys .
  • the required number of turns depends at least on the rope length.
  • twist pitch thus refers to the number of rope twists, i.e. twist pitches over the entire hoisting length of the rope.
  • a hoisting rope is achieved in which the outer strands 12 forming the rope sheath have a greater tension than the core strand 14 inside the rope.
  • ropes thinner than 4 mm e.g. ropes with a diameter of about 3 mm or even less.
  • thinner ropes it is possible to use ropes having a number of twists larger than the numbers mentioned above.
  • Fig. 5 visualizes a measuring method according to the inven- tion, which is suited to this purpose and guarantees a sufficient tightness.
  • the figure is depicted in a sim- plified form and is not in scale.
  • the measuring method of the invention the torque produced by the tightening tension of the rope 9 is measured.
  • the measurement is carried out after the hoisting ropes 9 have been first tightened after installation to a substantially equal tightness and after a few equalizing runs have been performed to allow the tension differences between different parts of the rope to be equalized.
  • the measurement can be made from different points in the longitudinal direction of the ropes. Based on the measurement results, the rope is tightened further if necessary to achieve a sufficient tightness .
  • a constant distance must be al- lowed for the rope 9 as a straight free length 21 of the rope.
  • This distance is suitably e.g. 3 m.
  • the measuring length 22 chosen to be used here is 0.5 m or 500 mm.
  • the measuring length 22 is the distance from the torsion moment measuring clamp 18 to a holding clamp 17, by means of which the rope 9 is locked so that it cannot be twisted in the portion 23 above the holding clamp 17.
  • a rope separator 20 must be placed between the rope to be measured and the adjacent ropes to provide a measuring space of required size. Parallel thin ropes lie very close to each other, in which case the horizontal distance between the ropes has to be increased to permit the jaws of the torsion moment measuring clamp 18 to be placed around the rope to be measured.
  • the measurement is carried out by holding the rope in place by means of the holding clamp 17 and turning the torsion moment measuring clamp 18 provided with a scales 19 through a constant twist angle • in the direction of the rope helix, i.e. in the twisting direction of the braiding.
  • the scales 19 of the torsion moment measuring clamp 18 will show the force F used to turn the clamp, this force being always the same for identical ropes at the same level of tightness.
  • the scales structure 19 is depicted in a diagrammatic form.

Landscapes

  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

The invention also relates to a method for ensuring the internal tightness of an elevator hoisting rope (9) in an elevator provided with hoisting ropes (9). According to the method, each hoisting rope (9) is tightened after installation of the elevator to a desired tightness by twisting the rope by the required number of turns in the twisting direction of the braiding, in such manner that the first end of the rope (9) remains fastened to its anchorage while the second end of the rope is free so as to allow tightening.

Description

METHOD FOR ENSURING AND MEASURING THE INTERNAL TENSION OF AN ELEVATOR HOISTING ROPE, AND ELEVATOR PERMITTING THE USE OF SAID METHOD
The present invention relates to a method as defined in the preamble of claim 1 for ensuring the internal tightness of an elevator hoisting rope and to an elevator as defined in claim 9.
In the use of hoisting ropes, and especially thin elevator hoisting ropes provided with a steel core, it is important to make sure that the mutual tightness of the strands of the hoisting rope is correct after installation and remains as correct as possible during operation of the elevator. The internal tension of the rope may change during installation of the elevator in connection with the handling of the rope. Any loosening between the strands that has started at installation time may accumulate in a given portion of the rope in the longitudinal direction of the rope during operation of the elevator. Such a portion may be e.g. the stretch between the traction sheave and the suspension point in the ceiling if the originally loosened part was in this rope portion. When the rope is twisted in the loosening direction relative to its braid structure, the braiding of the strands forming the rope sheath is opened and the braid structure holding the rope in shape becomes loose, with the result that the interlock between strands is loosened and the contact of the strands with each other is diminished. In consequence, the length of the rope sheath, i.e. the outermost layer of the rope, is increased along the length of the rope, and so the load of the rope is shifted to the straight core strand. Such internal loosening of the rope is a definite risk factor, which may cause serious damage to the hoisting rope. The object of the present invention is to overcome the above-mentioned drawbacks and to provide a dependable, reliable, easy-to-implement and fast method for ensuring and measuring a sufficient tightness of an eleva- tor hoisting rope, and thus to reduce the risk the hoisting ropes being damaged in connection with elevator operation, thereby also improving the operational dependability, reliability and safety of the elevator.
A further object of the invention is to achieve an elevator with re-tightened hoisting ropes.
The method of the invention for ensuring and measuring the internal tightness of an elevator hoisting rope is characterized by what is disclosed in the characterization part of claim 1. The elevator of the invention is characterized by what is disclosed in the characterization part of claim 9. Other embodiments of the invention are characterized by what is disclosed in the other claims .
By applying the invention, one or more of the follow- ing advantages, among others, can be achieved:
- reliability of the hoisting rope is improved because a desired internal tightness can be achieved and maintained
- operational dependability and reliability of the elevator is improved because damage due to internal loosening of the rope is avoided
- a sufficient internal tightness keeps the rope sheath well in shape, allowing a good and uniform friction to be achieved between the rope and the rope groove over the entire length of the rope
- the invention makes it possible to reduce elevator installation times and the total installation costs because the tightening method and the measurement of tightness are fast and easy to carry out. A primary area of application of the invention is elevators designed for freight/passenger transportation. Another primary area of application is in elevators having relatively thin twisted hoisting ropes provided with a steel core.
In the following, the invention will be described in detail by means of an example with reference to the attached drawings, wherein
Fig. 1 presents a simplified and oblique top view of an elevator solution applying the invention. Fig. 2 presents a cross-sectional view of a hoisting rope applicable in the solution of the invention, Fig. 3 presents a cross-sectional view of the hoisting rope in Fig. 2 in a situation where the rope has been partly untwisted, Fig. 4 presents the hoisting rope in a simplified side view in a situation where the rope has been partly untwisted, and
Fig. 5 illustrates an oblique side view of a situation where the tightness of the hoisting rope is being measured.
Fig. 1 presents a typical elevator solution in which the method of the invention for ensuring and measuring the internal tightness of an elevator hoisting rope can be used. The elevator is preferably an elevator without machine room and having a hoisting machine 3 connected via a traction sheave 5 to a set of hoisting ropes, which consists of hoisting ropes 9 running parallel to each other and supporting a counterweight 2 and an elevator car 1 moving on their respective tracks, i.e. along guide rails 8 and 7. The parallel hoisting ropes 9 are anchored to a fixed starting point 10, from which the ropes go downwards towards a diverting pulley 6 mounted in conjunction with the elevator car 1, at a position substantially below the elevator car. From the diverting pulley 6, the hoist- ing ropes go to a second corresponding diverting pulley placed at the other lower edge of the elevator car and, having passed around this second diverting pulley, they go upwards to the traction sheave 5 of the elevator machine 3 disposed in the in the upper part of the elevator shaft. Having passed around the traction sheave 5 by its top side, the hoisting ropes go again down to diverting pulleys 6 mounted in conjunction with the counterweight 2, passing around these pulleys by their lower side and then returning again up to their fixed end point 11. The functions of the elevator are controlled by a control system 4.
Fig. 2 and 3 present cross-sectional views of a hoisting rope applicable in the solution of the invention. In the situation represented by Fig. 2, the hoisting rope 9 is in a correct state of tightness, with all its strands tightly twisted according to their braiding around the core strand. Fig. 3 again illustrates a situation where the braiding of the rope has become loose. The figure shows the rope with an exaggerated loosening to provide a sufficient visual impression. As a result of the loosening, the six strands 12 forming the sheath of the rope 9, each of which in this case consists of nineteen wires 13 twisted around each other, have come loose of the core strand 14 forming the core of the rope. As a result of the loosening, there appears both between the strands 12 of the rope sheath and between the sheath strands 12 and core strand 14 a clearance 15, the magnitude of which is not necessarily the same in all parts of the rope. Be- cause of the clearance 15, the contact of the rope strands with each other is diminished, and the effect locking the braiding together is also weakened.
Fig. 4 presents a hoisting rope 9 thus loosened, in side view and simplified for visual clarity. The core strand 14 is straight, but a loosened strand 12 has grown in length in the longitudinal direction 15 of the rope because, due to a diminished contact and interlock between strands, there has also appeared between the twists of the strand 12 a clearance 15a, which has an effect in the longitudinal direction 16 of the rope. The more the braiding of the strand 12 becomes untwisted, the more will the virtual length of the strand increase in the longitudinal direction of the rope. The length is of course at a maximum when the braiding has been straightened completely.
The method of the invention ensures a structural tightness and tension of the hoisting ropes 9 sufficient to keep the rope together, to ensure that after start-up of the elevator there will appear no accumu- lated looseness that would make the rope susceptible to damage. Sufficient tightness of the rope is ensured at installation time. At the end of the installation operation, when the installation has been finished in other respects, the mutual tightness of all the paral- lei hoisting ropes 9 is first ensured by equalizing the spring lengths if necessary and performing a sufficient number of equalizing runs if necessary. After the aforesaid operations have been carried out, the second ends of the rope are released from their an- chorage and all the hoisting ropes 9 are tightened by twisting them from the free end and over a free straight portion as long as possible in the same direction with the pitch of the rope helix by a number of turns required to achieve a sufficient tightness. This tightening action is continued until the tighten- ing effect is propagated after the straight portion even over the diverting and other pulleys . The required number of turns depends at least on the rope length. For example, in the case of a 7-strand, 4-mm hoisting rope with a pitch of 25 mm, to obtain a sufficient tightness, the rope is twisted by about 0.2...2 turns/meter of hoisting length, preferably about 0.5...1.5 turns/meter of hoisting length and most preferably about 0.9...1.1 turns/meter of hoisting length. More generally, in the case of a 4-mm rope having a hoisting length of 4 m and thus 4000/25 = 160 pitches, this means that a preferable number of turns is 1 turn per about 320...100 twist pitches, and thus 1 turn/320 pitches produces a looser rope while 1 turn/100 pitches produces a tighter rope. A suitable tightness is 1 turn/about 180...150 twist pitches. In most hoisting ropes, a sufficient tightness can be achieved by using values in the range of 1 turn/400...100 twist pitches. In the above, twist pitch thus refers to the number of rope twists, i.e. twist pitches over the entire hoisting length of the rope. As a final result, a hoisting rope is achieved in which the outer strands 12 forming the rope sheath have a greater tension than the core strand 14 inside the rope. In another embodi- ment of the invention, it is also possible to use ropes thinner than 4 mm, e.g. ropes with a diameter of about 3 mm or even less. In the case of thinner ropes, it is possible to use ropes having a number of twists larger than the numbers mentioned above.
In practice, the required number of tightening turns need not necessarily be calculated in the manner described above. A sufficient tightness can be easily measured by a suitable measuring procedure. Fig. 5 visualizes a measuring method according to the inven- tion, which is suited to this purpose and guarantees a sufficient tightness. The figure is depicted in a sim- plified form and is not in scale. By the measuring method of the invention, the torque produced by the tightening tension of the rope 9 is measured. The measurement is carried out after the hoisting ropes 9 have been first tightened after installation to a substantially equal tightness and after a few equalizing runs have been performed to allow the tension differences between different parts of the rope to be equalized. The measurement can be made from different points in the longitudinal direction of the ropes. Based on the measurement results, the rope is tightened further if necessary to achieve a sufficient tightness .
For the measurement, a constant distance must be al- lowed for the rope 9 as a straight free length 21 of the rope. This distance is suitably e.g. 3 m. In the figure, we can assume that the distance 21 from the torsion moment measuring clamp 18 to the diverting pulley 6 is at least the required free length 3m. Cor- respondingly, the measuring length 22 chosen to be used here is 0.5 m or 500 mm. The measuring length 22 is the distance from the torsion moment measuring clamp 18 to a holding clamp 17, by means of which the rope 9 is locked so that it cannot be twisted in the portion 23 above the holding clamp 17. In addition, a rope separator 20 must be placed between the rope to be measured and the adjacent ropes to provide a measuring space of required size. Parallel thin ropes lie very close to each other, in which case the horizontal distance between the ropes has to be increased to permit the jaws of the torsion moment measuring clamp 18 to be placed around the rope to be measured.
The measurement is carried out by holding the rope in place by means of the holding clamp 17 and turning the torsion moment measuring clamp 18 provided with a scales 19 through a constant twist angle • in the direction of the rope helix, i.e. in the twisting direction of the braiding. After this turning movement, the scales 19 of the torsion moment measuring clamp 18 will show the force F used to turn the clamp, this force being always the same for identical ropes at the same level of tightness. In the figure, the scales structure 19 is depicted in a diagrammatic form.
The embodiments of the invention are not necessarily restricted to any embodiment described above but different embodiments can be combined partly or completely within the framework of technical requirements. Likewise, parts of different embodiments can be used to form embodiments according to the basic idea of the invention which are not presented here.
It is obvious to the person skilled in the art that the invention is not limited to the examples described above, but that it may be varied within the scope of the claims presented below. Thus, the size and struc- ture of the elevator hoisting ropes used as well as the required number of tightening turns may differ from those mentioned above. Likewise, the measurement of a sufficient torsion moment can be carried out using instruments and values differing from those de- scribed above.

Claims

1. Method for ensuring the internal tightness of an elevator hoisting rope (9) in an elevator provided with hoisting ropes (9) , characterized in that each hoisting rope (9) is tightened after installation of the elevator to a desired tightness by twisting the rope by the required number of turns in the twisting direction of the braiding, in such manner that the first end of the rope (9) remains fastened to its an- chorage while the second end of the rope is free so as to allow tightening.
2. Method according to claim 1, characterized in that the tightening of the rope (9) is accomplished by twisting the rope from its free end, in which rope a straight portion as long as possible starting from the free end has been provided, and continuing the twisting action so that the tightening effect is propagated after the straight portion over the diverting and other pulleys to the entire rope.
3. Method according to claim 1 or 2 , characterized in that the tightening of the rope (9) is effected by twisting the rope in the twisting direction of the braiding by substantially about 1 turn/N twist pitches, where N is preferably in the range of about 320...100.
4. Method according to claim 1 or 2 , characterized in that the tightening of the rope (9) is effected by twisting the rope in the twisting direction of the braiding by substantially about 1 turn/N twist pitches, where N is preferably in the range of about
180...150.
5. Method according to claim 1 or 2 , characterized in that the tightening of the rope (9) is effected by twisting the rope in the twisting direction of the braiding by substantially about M turns/meter of hoisting length, where M is in the range of about 0.2...2, preferably about 0.5...1.5 and very advanta- geously about 0.9...1.1.
6. Method according to any one of the preceding claims, characterized in that the tightening of the rope (9) is effected by re-tightening the rope after installation and equalization runs, in such manner that that, after the tightening operation, the tension in the sheath strands (12) forming the sheath of the rope is greater than in the core strand (14) inside the rope .
7. Method according to any one of the preceding claims, characterized in that the measurement of the required tightness is made by locking a torsion device, such as a torsion moment measuring clamp (18) , onto the rope at the point of measurement and turning the torsion device in the twisting direction of the braiding of the rope through a constant twist angle ( • ) and then measuring the moment needed for the turning movement by means of a measuring device, such as a scales (19) .
8. Method according to claim 7 , characterized in that the torsion moment measuring clamp (18) is locked onto the rope (9) so that on one side of the clamp there remains at least a pre-selected constant straight free length (21) of the rope (9) while on the other side of the clamp there remains in the rope a pre-selected straight measurement length (22), on the other side of which there correspondingly remains a rope portion (23) locked in place so that is not twisted.
9. Elevator provided with hoisting ropes (9), characterized in that each hoisting rope (9) of the elevator has been re-tightened so that the tension in the sheath strands (12) forming the sheath of the rope is greater than in the core strand (14) inside the rope.
EP03750762A 2002-11-15 2003-10-13 Method for ensuring and measuring the internal tension of an elevator hoisting rope, and elevator permitting the use of said method Expired - Lifetime EP1560779B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI20022040A FI112642B (en) 2002-11-15 2002-11-15 A method for verifying and measuring the internal tension of an elevator hoisting rope and an elevator enabling the method
FI20022040 2002-11-15
PCT/FI2003/000756 WO2004046008A1 (en) 2002-11-15 2003-10-13 Method for ensuring and measuring the internal tension of an elevator hoisting rope, and elevator permitting the use of said method

Publications (2)

Publication Number Publication Date
EP1560779A1 true EP1560779A1 (en) 2005-08-10
EP1560779B1 EP1560779B1 (en) 2007-07-04

Family

ID=8564945

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03750762A Expired - Lifetime EP1560779B1 (en) 2002-11-15 2003-10-13 Method for ensuring and measuring the internal tension of an elevator hoisting rope, and elevator permitting the use of said method

Country Status (9)

Country Link
EP (1) EP1560779B1 (en)
JP (1) JP2006506299A (en)
CN (1) CN100386252C (en)
AT (1) ATE366223T1 (en)
AU (1) AU2003268986A1 (en)
DE (1) DE60314768T2 (en)
ES (1) ES2285167T3 (en)
FI (1) FI112642B (en)
WO (1) WO2004046008A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110094831A1 (en) * 2005-05-13 2011-04-28 Giorgio Jezek Device for stretching compensation in lift cables
ES2342806B1 (en) * 2008-07-29 2011-05-12 Orona, S. Coop. METHOD FOR REPLACING CABLES OF LIFTING DEVICES.
JP5327753B2 (en) * 2010-10-12 2013-10-30 東芝ロジスティクス株式会社 Tension evaluation apparatus and tension evaluation method thereof
JP4916582B1 (en) * 2011-05-23 2012-04-11 楠橋紋織株式会社 Yarn cotton and woven and knitted fabric using yarn cotton
AU2013230564B2 (en) * 2012-03-05 2017-05-25 Cortland Industrial LLC Spliced rope apparatus and method
JP6158391B1 (en) * 2016-05-10 2017-07-05 東芝エレベータ株式会社 Elevator equipment
CN109867184B (en) * 2019-02-25 2020-08-07 北京鼎原电梯安装有限公司 Elevator rapid overhauling process

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1861908A (en) * 1930-05-31 1932-06-07 George E Culp Elevator governor cable swivel
SU1562278A1 (en) * 1988-03-31 1990-05-07 Карагандинский политехнический институт Method of mounting spun ropes of mine hoists
JP3188833B2 (en) * 1995-11-17 2001-07-16 三菱電機株式会社 Elevator rope tension measuring device
US5819878A (en) * 1996-11-07 1998-10-13 Otis Elevator Company Pretensioning system for synchronization and positioning system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004046008A1 *

Also Published As

Publication number Publication date
DE60314768D1 (en) 2007-08-16
DE60314768T2 (en) 2007-12-06
HK1086538A1 (en) 2006-09-22
EP1560779B1 (en) 2007-07-04
CN1711204A (en) 2005-12-21
CN100386252C (en) 2008-05-07
JP2006506299A (en) 2006-02-23
ES2285167T3 (en) 2007-11-16
AU2003268986A1 (en) 2004-06-15
ATE366223T1 (en) 2007-07-15
FI20022040A0 (en) 2002-11-15
WO2004046008A1 (en) 2004-06-03
FI112642B (en) 2003-12-31

Similar Documents

Publication Publication Date Title
US7086217B2 (en) Rope of synthetic fiber with reinforcement element for frictionally engaged power transmission and rope of synthetic fiber with reinforcement element for positively engaged power transmission
JP4707788B2 (en) Rope coating and method for forming the same
MXPA04006657A (en) Elevator with small-sized driving gear.
US11358835B2 (en) Method for roping an elevator
EP1560779B1 (en) Method for ensuring and measuring the internal tension of an elevator hoisting rope, and elevator permitting the use of said method
US6513792B1 (en) Rope deflection and suitable synthetic fiber rope and their use
US7472534B2 (en) Method for ensuring and measuring the internal tension of an elevator hoisting rope, and elevator permitting the use of said method
JP2002145556A (en) Elevator equipment
JP2005068989A (en) How to assemble a copy
JP3412367B2 (en) Elevator control cable device
HK1086538B (en) Method for ensuring and measuring the internal tension of an elevator hoisting rope, and elevator permitting the use of said method
EP1687230B1 (en) Tension means for elevator cable
US12612287B1 (en) High strength cord with improved detectability
HK40045317A (en) Method for roping an elevator
JPS61295983A (en) Elevator device
MXPA00010021A (en) Cable guide roller, synthetic fibre rope suitable therefor and their use
HK1188427A (en) Elevator suspension and/or driving arrangement

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20050428

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 60314768

Country of ref document: DE

Date of ref document: 20070816

Kind code of ref document: P

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2285167

Country of ref document: ES

Kind code of ref document: T3

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
ET Fr: translation filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20071204

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070704

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070704

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20071004

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070704

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070704

Ref country code: LI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070704

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070704

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070704

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20071005

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070704

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070704

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071031

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070704

26N No opposition filed

Effective date: 20080407

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070704

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20071004

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071015

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070704

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070704

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071013

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080105

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070704

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 13

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 14

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20171024

Year of fee payment: 15

Ref country code: DE

Payment date: 20171019

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20171019

Year of fee payment: 15

Ref country code: IT

Payment date: 20171025

Year of fee payment: 15

Ref country code: ES

Payment date: 20171121

Year of fee payment: 15

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 60314768

Country of ref document: DE

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20181013

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190501

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181013

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181013

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20191129

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181014