With Separate Biasing Means Maintaining Cable Tension Patents (Class 187/264)
  • Patent number: 10427912
    Abstract: An example elevator system may include at least one elevator cage that is displaceable in an elevator shaft, a connection means that has a first elevator cage-side end and a second end, and a suspension disposed on the elevator cage. The connection means may include, for instance, a balance chain or belt. The first end of the connection means may be fastened to the suspension on the elevator cage. Further, the example elevator system may include a support unit that exerts a force on the suspension that counteracts a force acting on the suspension due to a mass of the connection means. The support unit may include a rope, a deflection roller, and a counterweight, wherein the rope is fastened to the counterweight and the suspension and is guided over the deflection roller.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: October 1, 2019
    Assignee: THYSSENKRUPP ELEVATOR AG
    Inventors: Bernd Altenburger, Holger Zerelles, Darrell Hertel
  • Patent number: 10351389
    Abstract: This invention is concerning a car suspending pulley device including a pair of beams provided parallel to each other on a lower portion of a car and a car suspending pulley arranged between the pair of beams and supported by the pair of beams. A weight suspending pulley is provided on a counterweight. The car and the counterweight are suspended from a main rope wrapped around the car suspending pulley and the weight suspending pulley. A compensating member is suspended between the beams and the counterweight. The compensating member includes a funicular body having a first end portion connected to only one of the pair of beams and a second end portion connected to the counterweight. The first end portion of the funicular body is located in a region of the one beam when viewed in a vertical direction.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: July 16, 2019
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Kunio Kato
  • Patent number: 10322908
    Abstract: The object of the invention is an arrangement for adjusting the tautness of a traction member of an elevator, which arrangement comprises an elevator car and a compensating weight, which are for their part connected to support the elevator car by the aid of a suspension member, such as a rope or belt, and also a hoisting machine provided with a traction sheave, and one traction member, such as a belt, which is adapted to transmit the rotational movement of the traction sheave into movement of the elevator car and of the compensating weight, and also a tension control means, which is arranged to adjust the magnitude of the tension forces exerted on the suspension member and on the traction member.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: June 18, 2019
    Assignee: Kone Corporation
    Inventors: Markku Haapaniemi, Matti Rasanen, Janne Mikkonen, Esko Aulanko
  • Patent number: 10279909
    Abstract: An elevator system includes a shaft extending between at least two decks of a vehicle. A base of the shaft is mounted to a deck structure of at least two decks by a coupling mechanism that accommodates flexing of the deck structure to enable the deck structure to flex independently of the base of the shaft. The elevator system further includes a cab within the shaft. The cab is movable between the at least two decks. The elevator system also includes a pneumatic system in selective communication with an interior of the shaft.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: May 7, 2019
    Assignee: THE BOEING COMPANY
    Inventors: Douglas A. Brown, Karen L. Hills
  • Patent number: 9963324
    Abstract: An elevator includes a hoistway; an elevator car vertically movable in the hoistway, the passage to and/or from the elevator car being provided in depth direction of the hoistway; a counterweight vertically movable in the hoistway beside the elevator car in width direction of the hoistway; one or more ropes interconnecting the elevator car and the counterweight and hanging from these; a rope wheel arrangement in the bottom end of the hoistway for guiding the one or more ropes; and a vertically oriented guide rail for guiding the elevator car extending between the elevator car and counterweight.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: May 8, 2018
    Assignee: KONE CORPORATION
    Inventors: Veli-Matti Virta, Markus Salmi, Kim Pönkä
  • Patent number: 9914622
    Abstract: An elevator includes an elevator car and a counterweight; a first roping between the elevator car and counterweight and including at least one rope; a second roping between the elevator car and counterweight and including at least one rope; and a rope wheel arrangement, having at least one rope wheel, around which the at least one rope of the second roping passes. The longitudinal force transmission capability of the at least one rope of the second roping is based essentially on non-metallic fibers and is a belt-like rope having at least one contoured side provided with guide rib(s) and/or guide groove(s) oriented in the longitudinal direction of the rope, the side being fitted to pass against a contoured circumference of a rope wheel of the rope wheel arrangement, the circumference being provided with guide rib(s) and/or guide groove(s) so as to form a counterpart for the contoured side of the rope.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: March 13, 2018
    Assignee: KONE CORPORATION
    Inventors: Petteri Valjus, Raimo Pelto-Huikko
  • Patent number: 9868614
    Abstract: One elevator system includes an elevator car, counterweight, traction sheave, support wrapped around the traction sheave and suspending the car and the counterweight, a compensation sheave, a compensation member wrapped around the compensation sheave and being affixed at a first end to the elevator car and at a second end to the counterweight, and a tensioner. The support is driven by rotation of the traction sheave to raise and lower the car, and the tensioner is in communication with the traction sheave for linearly displacing a rotational centerpoint of the traction sheave. Another elevator system has an elevator car, counterweight, compensation sheave, compensation rope wrapped around the compensation sheave and being affixed to the car and the counterweight, a traction sheave driving a support suspending the car and the counterweight, and a tensioner in communication with the traction sheave for inducing a variation in tension of the compensation rope.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: January 16, 2018
    Assignee: Thyssenkrupp Elevator AG
    Inventors: Rory Smith, Stefan Kaczmarczyk
  • Patent number: 9845155
    Abstract: An elevator system includes a shaft extending between at least two decks of a vehicle. A base of the shaft is mounted to a deck structure of at least two decks by a coupling mechanism that accommodates flexing of the deck structure to enable the deck structure to flex independently of the base of the shaft. The elevator system further includes a cab within the shaft. The cab is movable between the at least two decks. The elevator system also includes a pneumatic system in selective communication with an interior of the shaft.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: December 19, 2017
    Assignee: THE BOEING COMPANY
    Inventors: Douglas A. Brown, Karen L. Hills
  • Patent number: 9624074
    Abstract: The invention relates to a drive unit which comprises a motor (6)-driven spindle (5), rollers (2, 3), and cables (11), and which has a favourable transmission ratio, specifically N:1 in which N=4+n, and n is an integer between ?2 and 8 including 0. Said unit is used to move loads and people, is particularly suitable for lifts, is space-saving, environmentally friendly, low-maintenance, economical in terms of energy consumption, and call be used both in the construction of new lifts and in the renovation of older installations. It allows the installation to be operated securely, and people and loads to be transported at high speeds. It can, for example, be installed at the lower or upper end of a shaft, or also outside of the shaft. It can be used for movement in a vertical, horizontal and also inclined direction, and may be provided with a counter weight.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: April 18, 2017
    Assignee: SHS Vermarktung UG (Haftungsbeschrankt) & Co. KG
    Inventor: Horst Becker
  • Patent number: 9533860
    Abstract: An elevator arrangement includes first and second movable elevator units, the first unit being an elevator car and the second unit being a counterweight, and a roping system including a first roping portion suspending the first and second elevator units, and being locked at least to the second elevator unit, a second roping portion being suspended by the first elevator unit and the second elevator unit, and being locked at least to the second elevator unit. The first and the second roping portions are successive portions of a roping passing unbroken via a locking arrangement provided at the second elevator unit, the locking arrangement locking the roping to the second elevator unit between the first and the second portions. In a method in constructing an elevator, the locking arrangement is unlocked and thereafter the roping is repositioned with respect to the locking arrangement and thereafter the locking arrangement is relocked.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: January 3, 2017
    Assignee: KONE CORPORATION
    Inventor: Jaakko Kalliomäki
  • Patent number: 9272879
    Abstract: A compensating means is guided between an elevator cage and a counterweight on the counterweight side by a guide device and monitored by a monitoring device.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: March 1, 2016
    Assignee: Inventio AG
    Inventors: Bernhard Grossrieder, Adrian Attinger, Ernst Ach, Hubert Steiner, Simon Mueller
  • Patent number: 9096411
    Abstract: A method determines a sway of an elevator rope during an operation of an elevator system. The method includes acquiring at least one measurement of a motion of the elevator rope during the operation of the elevator system; and determining the sway of the elevator rope connecting an elevator car and a pulley based on an interpolation between boundaries of the elevator rope based on the measurement of the motion.
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: August 4, 2015
    Assignee: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Mouhacine Benosman, Scott A. Bortoff
  • Publication number: 20150122588
    Abstract: An elevator has an elevator car and a counterweight suspended by hoisting ropes, which hoisting ropes are driven by a drive machine via a traction sheave, which elevator further includes a compensation rope in the lower shaft area between the car and the counterweight, which compensation rope runs around a compensation sheave arrangement in the shaft bottom, which elevator has a compensation device for the compensation of rope elongation. The compensation device includes a diverting pulley for the compensation rope connected to the counterweight, whereby the compensation rope is arranged to run over the diverting pulley, a tension weight connected with the free end of the compensation rope, a rope clamp arranged on the compensation rope and a clamp support for connecting the rope clamp to the counterweight. A compensation device is provided for the rope elongation which necessitates less vertical space in the elevator shaft.
    Type: Application
    Filed: November 19, 2014
    Publication date: May 7, 2015
    Applicant: KONE CORPORATION
    Inventor: Jaakko KALLIOMÄKI
  • Publication number: 20150122587
    Abstract: A counterweightless elevator includes a hoistway, a car vertically movable in the hoistway, one or more suspension ropes, a rotatable drive member engaging said suspension rope(s), each of the suspension rope(s) having a first rope section on the first side of the drive member and a second rope section on the second side of the drive member, and each rope section being connected to the car, said first rope section suspending the car, and a tightening device arranged to tighten the second rope section. Each of said rope(s) is belt-like and includes a load bearing member or a plurality of load bearing members, which load bearing member(s) is/are made of composite material including reinforcing fibers embedded in a polymer matrix, which reinforcing fibers are carbon fibers.
    Type: Application
    Filed: November 3, 2014
    Publication date: May 7, 2015
    Applicant: KONE CORPORATION
    Inventor: Petteri Valjus
  • Patent number: 9010496
    Abstract: The invention relates to a device and system for underground transport of ore, material and people, which includes electrical and mechanical drive systems, a plurality of hoisting devices, head ropes and balance ropes. The mass per meter of the balance ropes is significantly smaller than the mass per meter of the head ropes.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: April 21, 2015
    Assignee: ABB AB
    Inventors: Borje Johansson, Sigurd Grimestad
  • Patent number: 8943695
    Abstract: Method for installing the hoisting roping of an elevator, wherein the first elevator unit to be moved is disposed at a suitable point in the elevator hoistway, and the second elevator unit to be moved is disposed at a suitable point in the elevator hoistway, which first elevator unit is an elevator car and which second elevator unit is a counterweight, or vice versa. The first and/or second section of the hoisting roping is connected to its elevator unit via a diverting pulley system such that when the diverting pulley system is still separate from the elevator unit, the section in question of the hoisting roping is arranged to travel under the diverting pulley system of its elevator unit, and the diverting pulley system is lowered, when reeved, downwards into the proximity of its elevator unit, after which the diverting pulley system in question is fixed to its elevator unit.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: February 3, 2015
    Assignee: Kone Corporation
    Inventors: Niko Forsström, Osmo Björni, Jarmo Ahoniemi
  • Patent number: 8863906
    Abstract: A counterweight and an elevator car are suspended on a set of hoisting ropes. The elevator comprises one or more rope pulleys provided with rope grooves, one of said pulleys being a traction sheave driven by a drive machine and moving the set of hoisting ropes. At least one of the rope pulleys has against the hoisting rope a coating adhesively bonded to the rope pulley and containing the rope grooves, said coating having an elasticity that is greater in the edge portions of the rope groove than at the bottom of the rope groove. In a preferred solution, the traction sheave is a rope pulley like this.
    Type: Grant
    Filed: April 22, 2003
    Date of Patent: October 21, 2014
    Assignee: Kone Corporation
    Inventors: Jorma Mustalahti, Esko Aulanko
  • Patent number: 8757327
    Abstract: Ground-accessing elevator systems and methods are provided for transporting personnel between the ground level and one or more decks of multi-level vehicle such as a fixed-wing aircraft. The vehicle elevator systems and methods may be implemented using a multi-track guide rail system configured to guide an elevator car between the ground and two or more levels within a vehicle. The multi-track guide rail system may include an intra-vehicle track fixed to the vehicle structure and configured to guide the elevator car between decks of the vehicle, and a separate deployment track may be configured to telescope downward from the intra-vehicle guide rail track to guide the elevator car during deployment to the ground from the vehicle.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: June 24, 2014
    Assignee: L-3 Communications Integrated Systems LP
    Inventors: Wayne J. Ehlert, Michael G. Glenn, James R. Grimes, Loyd R. Hamilton, Christopher M. Jackson, Mark A. McCoy, Richard R. Pardun, Paul H. Peterson, Albert W. Ruggles, Scot A. Stephens
  • Publication number: 20140166406
    Abstract: An elevator includes at least one elevator car and a counterweight which are at least partly suspended on hoisting ropes and a drive machine driving a traction sheave engaging the hoisting ropes for moving the elevator car along guide rails in an elevator shaft, which elevator further includes a compensation rope. The compensation rope is led upwards to an upper part of the elevator shaft and from there aside to a balancing area located aside of the travel paths of the car and counterweight. This solution is particularly adapted for high travel elevators facing horizontal forces during operation as e.g. ship elevators. Collision of compensation ropes are avoided in the area below the car and counterweight paths which could affect the elevator safety when subjected to high horizontal forces, e.g. during rough sea.
    Type: Application
    Filed: December 5, 2013
    Publication date: June 19, 2014
    Applicant: KONE CORPORATION
    Inventors: Johannes DE JONG, Jussi PERÄLÄ
  • Patent number: 8746414
    Abstract: The invention relates to a method for replacing the hoisting ropes of an elevator. By the method of the invention, the hoisting ropes (4) are replaced by first joining the old and new hoisting ropes (4a, 4b) together by their one ends by splicing the ends together around a common core strand (17), whereupon the new set (4b) of hoisting ropes is pulled into place by means of the old set (4a) of hoisting ropes.
    Type: Grant
    Filed: April 23, 2008
    Date of Patent: June 10, 2014
    Assignee: Kone Corporation
    Inventors: Matti Hynni, Anssi Karppinen, Arto Tuhkio
  • Publication number: 20140083802
    Abstract: The object of the invention is a tensioning arrangement for a traction means of an elevator, which arrangement comprises at least an elevator car configured to move up and down in an elevator hoistway and at least one or more compensating weights, which are for their part connected to support the elevator car by the aid of their own support means, such as by the aid of ropes or belts and also of diverting pulleys, and a hoisting machine provided with at least one traction sheave or corresponding, and also at least one traction means (7) such as a belt, rope or chain, which is configured to transmit the rotational movement of the traction sheave into movement of the elevator car and of the compensating weights. The traction means (7) is fixed from at least one of its ends to a fixing means (1) providing an essentially constant tensioning force.
    Type: Application
    Filed: November 27, 2013
    Publication date: March 27, 2014
    Applicant: KONE Corporation
    Inventors: Esko AULANKO, Matti RÄSÄNEN, Janne MIKKONEN, Pentti ALASENTIE
  • Patent number: 8613343
    Abstract: An elevator may include an elevator car, a set of hoisting ropes, a traction sheave, and a compensating device. The set of hoisting ropes may include first and second rope portions. The elevator car may include one or more first diverting pulleys from which the first rope portions extend upward. The elevator car may include one or more second diverting pulleys from which the second rope portions extend downward. The first rope portions may be under a first rope tension. The second rope portions may be under a second rope tension that is different from the first rope tension. The compensating device may act in substantially opposite directions on the first and second rope portions. The compensating device may produce an auxiliary force acting substantially in a same direction as the first rope tension.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: December 24, 2013
    Assignee: Kone Corporation
    Inventors: Esko Aulanko, Jorma Mustalahti, Johannes De Jong
  • Patent number: 8567568
    Abstract: The object of the invention is an arrangement for compensating the rope forces of a traction sheave elevator, which elevator comprises at least a hoisting machine (5) and the traction sheave (6) connected to it, as well as an elevator car (1) suspended on hoisting roping (3), which is fitted to travel along guide rails (4), and in the rope suspension of which elevator is a rope force compensating element (8). The compensating element (8) comprises at least two compensation pulleys, of which the first part (3a) of the hoisting ropes (3) coming to the compensating element (8) are led over the top of the first compensation pulley (18) and the second part (3b) of the hoisting ropes (3) coming to the compensating element (8) are led to the second compensation pulley (19).
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: October 29, 2013
    Assignee: Kone Corporation
    Inventor: Sakari Korvenranta
  • Patent number: 8360212
    Abstract: A method and an arrangement are provided for fixing the compensating ropes of an elevator to an elevator car or to a counterweight, which elevator includes at least a hoisting machine and hoisting roping, suspended by which the elevator car as well as the counterweight are arranged to travel, and between which elevator car and counterweight compensating ropes are fixed such that the first ends of the compensating ropes are fixed to the counterweight, from where the compensating ropes are led downwards to pass below a compensating pulley, after which upwards to the elevator car, where the second ends of the compensating ropes are fixed by wedge housings in connection with the elevator car. When fixing the ends of the compensating ropes in connection with the elevator car or the counterweight, the wedge housings are turned into an inclined attitude before disposing the ends of the compensating ropes in the wedge housings.
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: January 29, 2013
    Assignee: Kone Corporation
    Inventors: Jori Hagg, Razvan Albu, Jani Luoma
  • Patent number: 8316786
    Abstract: A lift assembly is provided for a platform such as used on a ship. The platform can have four spaced apart hitch points. In one embodiment, the lift assembly includes four trolley drive assemblies, each trolley drive assembly including a trolley guidable along a guide rail, and a drive configured to displace the trolley along the guide rails, each trolley being coupled to at least one hitch point. In a second embodiment, a tension leveling assembly is provided in a trolley drive assembly and is configured to couple each of the wire ropes to the trolley and maintain substantially the same amount of tension in each wire rope. In a third embodiment, the lift assembly can be provided on a ship that also includes a vessel for holding water.
    Type: Grant
    Filed: February 22, 2010
    Date of Patent: November 27, 2012
    Assignee: Par Systems, Inc.
    Inventors: William R. Johanek, Dale Hengel
  • Publication number: 20120247877
    Abstract: An elevator may include an elevator car, a set of hoisting ropes, a traction sheave, and a compensating device. The set of hoisting ropes may include first and second rope portions. The elevator car may include one or more first diverting pulleys from which the first rope portions extend upward. The elevator car may include one or more second diverting pulleys from which the second rope portions extend downward. The first rope portions may be under a first rope tension. The second rope portions may be under a second rope tension that is different from the first rope tension. The compensating device may act in substantially opposite directions on the first and second rope portions. The compensating device may produce an auxiliary force acting substantially in a same direction as the first rope tension.
    Type: Application
    Filed: June 18, 2012
    Publication date: October 4, 2012
    Applicant: KONE CORPORATION
    Inventors: Esko AULANKO, Jorma MUSTALAHTI, Johannes DE JONG
  • Patent number: 8235179
    Abstract: An elevator includes hoisting ropes and a compensating device. The hoisting ropes include first rope portions under a first rope tension that go upward from an elevator car and second rope portions under a different, second rope tension that go downward from the elevator car. The compensating device acts in substantially opposite directions on the first and second rope portions in order to do one or more of the following: equalize the first, second, or first and second rope tensions; compensate the rope tensions between the first and second rope tensions; equalize rope elongation in the first, second, or first and second rope portions; compensate the rope elongations between the first and second rope portions; and render a ratio of the first rope tension to the second rope tension substantially constant. The compensating device produces an auxiliary force acting substantially in a same direction as the first rope tension.
    Type: Grant
    Filed: August 18, 2006
    Date of Patent: August 7, 2012
    Assignee: Kone Corporation
    Inventors: Petteri Valjus, Mikko Orava, Teuvo Väntänen
  • Patent number: 8225909
    Abstract: An elevator may include an elevator car, a set of hoisting ropes, a traction sheave, and a compensating device. The set of hoisting ropes may include first and second rope portions. The elevator car may include one or more first diverting pulleys from which the first rope portions extend upward. The elevator car may include one or more second diverting pulleys from which the second rope portions extend downward. The first rope portions may be under a first rope tension. The second rope portions may be under a second rope tension that is different from the first rope tension. The compensating device may act in substantially opposite directions on the first and second rope portions. The compensating device may produce an auxiliary force acting substantially in a same direction as the first rope tension.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: July 24, 2012
    Assignee: Kone Corporation
    Inventors: Esko Aulanko, Jorma Mustalahti, Johannes De Jong
  • Patent number: 8181741
    Abstract: A life saving implement includes a prime motor assembly, a winding drum installing in the prime motor assembly to wind a wire rope, a braking drum installed on a side of the winding drum to control an RPM of the winding drum, a braking unit installed on a lower portion of the braking drum to control an RPM of the braking drum, a speed reduction unit installed on an upper portion of the braking drum to gradually reduce the RPM of the winding drum until the winding drum stops, and a passenger vehicle moving by the rotations of the winding drum and the braking drum.
    Type: Grant
    Filed: August 25, 2005
    Date of Patent: May 22, 2012
    Assignee: Implement Saving Precious Life Co., Ltd.
    Inventor: Hyun-Dal Lee
  • Patent number: 8141684
    Abstract: An elevator, preferably an elevator without counterweight, comprising a number of diverting pulleys in the upper part of an elevator shaft or equivalent, a number of diverting pulleys in the lower part of the elevator shaft and a number of diverting pulleys on an elevator car, is installed in such manner that at least some of the diverting pulleys for the upper part are rigged in the lower part of the elevator shaft and at least some of the diverting pulleys from which the passage of the ropes is directed upwards are rigged at the same time. The diverting pulleys for the upper part thus rigged are raised in the rigged state to the upper part of the elevator shaft or equivalent and mounted in place.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: March 27, 2012
    Assignee: Kone Corporation
    Inventors: Osmo Björni, Esko Aulanko, Teuvo Väntänen, Jorma Mustalahti
  • Patent number: 8118138
    Abstract: A method for installing an elevator may include stopping an elevator car or partially completed elevator car in the upper part of an elevator shaft; rigging first portions of hoisting ropes between the car and diverting pulleys in the upper part of the shaft so that the first portions pass via the diverting pulleys in the upper part of the shaft and first diverting pulleys on the car; moving the car to the lower part of the shaft, while supplying ropes from rope reels to the first portions between the car and the diverting pulleys in the upper part of the shaft; and rigging second portions of the hoisting ropes between the car and diverting pulleys in the lower part of the shaft so that the second portions pass via the diverting pulleys in the lower part of the shaft and second diverting pulleys on the car.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: February 21, 2012
    Assignee: Kone Corporation
    Inventors: Esko Aulanko, Jorma Mustalahti, Osmo Björni, Teuvo Väntänen
  • Patent number: 8113319
    Abstract: An elevator may include an elevator car, one or more hoisting ropes, a traction sheave, an overspeed governor, at least one safety gear, a locking mechanism, and guide rails. The car may be suspended by the one or more hoisting ropes. The traction sheave may move the car using the one or more hoisting ropes. The at least one safety gear and locking mechanism may be fitted in conjunction with the car. The overspeed governor may be configured to activate and release, via a linkage, the at least one safety gear during operation of the elevator. The locking mechanism may be configured to activate and release, by operatively acting on the linkage, the at least one safety gear during installation, maintenance, or installation and maintenance of the elevator. When activated, the at least one safety gear may engage one of the guide rails to lock the car in place.
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: February 14, 2012
    Assignee: Kone Corporation
    Inventors: Aripekka Anttila, Esko Aulanko, Håkan Bärneman, Osmo Björni
  • Patent number: 8020670
    Abstract: An arrangement for equalizing rope force of an elevator may include: a hoisting machine, set of hoisting ropes, traction sheave, elevator car, guide rails, and compensating device. The hoisting machine may engage the hoisting ropes via the traction sheave. The elevator car may be at least partially supported by the hoisting ropes to move the elevator car. The elevator car may move along the guide rails. The compensating device may include first and second tensioning devices. The first tensioning device may be spaced apart from the second tensioning device. The first and second tensioning devices may be interconnected via a transmission device that transmits rotary motion. A first end of the set of hoisting ropes may be secured to a point in conjunction with the first tensioning device. A second end of the set of hoisting ropes may be secured to a point in conjunction with the second tensioning device.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: September 20, 2011
    Assignee: Kone Corporation
    Inventors: Jorma Mustalahti, Esko Aulanko, Pekka Rantanen
  • Patent number: 7946390
    Abstract: An elevator system (20) includes a tie-down compensation arrangement (40). A tension member (42) extends between a cab (22) and counterweight (26) to provide a desired amount of tension on a load bearing rope or belt (30) that supports the cab and the counterweight. The tension member (42) in one example comprises a coated steel belt. At least one sheave (46) is supported on a base module (48) and remains stationary relative to a floor of a pit (52). A damper (50) is supported for movement with the counterweight (26) or the cab (22) to absorb energy that would otherwise tend to cause counterweight jump following a rapid descent and stop of the cab (22).
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: May 24, 2011
    Assignee: Otis Elevator Company
    Inventors: Brian T. McNamara, Alfred R. Feitl
  • Publication number: 20110094831
    Abstract: The invention relates to a device for stretching compensation in lift cables, arranged within a lift unit, with a lift shaft, a cabin (1) (FIGS. 1 and 2), a counter-weight (7) (FIGS. 1 and 2), at least one lift cable (3) (image 1), said cabin and said counter-weight on the pulley (4) (image 1 and 2) and a cable (9) (FIGS. 1 and 2) connected to the underside of the cabin and the counter-weight (FIG. 2) running around the freely-rotating pulley (10) (FIGS. 1 and 2) in the lift shaft. According to the invention, the device comprises a drive, mechanically connected to the end of at least one cable rod (27) (FIG. 4) on the underside of the cabin (11) (FIG. 2) and passing through pressure springs applied to the cabin cable section and a sensor (34) on the spring (12) (FIGS. 1 and 2), which serves to trigger the drive (16) (FIGS. 1, 2, 3 and 4). Two solutions to achieve automatic load compensation on a lift into which a load is charged are given.
    Type: Application
    Filed: December 12, 2005
    Publication date: April 28, 2011
    Inventor: Giorgio Jezek
  • Publication number: 20110088980
    Abstract: An elevator system comprises an elevator car and a counterweight fixed to a traction means. A drive pulley moves the traction means. A bottom tensioning means is fixed to the counterweight and to the elevator car. A tensioning means weight tensions the bottom tensioning means. In an end position of the counterweight, the elevator car can continue to move when the traction means is moved further by the drive pulley. This moves the tensioning means weight at half the speed of the elevator car, for example. A measuring device is provided for the tensioning means weight for detecting such a motion of the tensioning means weight. This allows a triggering of an emergency stop of the elevator car.
    Type: Application
    Filed: June 19, 2009
    Publication date: April 21, 2011
    Inventor: Josef Husmann
  • Patent number: 7878306
    Abstract: An elevator system includes a cab supported for movement within a hoistway. A tension device, which remains close to one end of the hoistway, maintains a desired tension on a load bearing member that supports the cab and moves to achieve a desired placement of the cab. The load bearing member extends from a first end of the hoistway toward the cab, wraps around a first sheave supported on the cab, extends toward the first end of the hoistway, wraps around a second sheave supported near the first end of the hoistway, extends toward a second end of the hoistway, wraps about a third sheave supported near the second end of the hoistway, extends toward the cab, wraps around a fourth sheave supported on the cab, and extends toward the second end of the hoistway where it is secured to the tension device.
    Type: Grant
    Filed: May 25, 2007
    Date of Patent: February 1, 2011
    Assignee: Otis Elevator Company
    Inventors: Bryan Robert Siewert, Mark S. Thompson, Richard L. Hollowell
  • Publication number: 20110017551
    Abstract: An elevator may include an elevator car, a set of hoisting ropes, a traction sheave, and a compensating device. The set of hoisting ropes may include first and second rope portions. The elevator car may include one or more first diverting pulleys from which the first rope portions extend upward. The elevator car may include one or more second diverting pulleys from which the second rope portions extend downward. The first rope portions may be under a first rope tension. The second rope portions may be under a second rope tension that is different from the first rope tension. The compensating device may act in substantially opposite directions on the first and second rope portions. The compensating device may produce an auxiliary force acting substantially in a same direction as the first rope tension.
    Type: Application
    Filed: August 25, 2010
    Publication date: January 27, 2011
    Inventors: Esko Aulanko, Jorma Mustalahti, Johannes De Jong
  • Publication number: 20110017552
    Abstract: A lift comprises a first lift cage, a second lift cage and a counterweight, wherein the counterweight, the first lift cage and the second lift cage are coupled together by way of a support means for lifting and holding, wherein the counterweight, the first lift cage and the second lift cage are additionally coupled together by way of a compensation means and wherein the compensation means runs over at least one deflecting roller. The lift further comprises a brake device for application to the deflecting roller of dissipative braking torque which counteracts the rotation thereof.
    Type: Application
    Filed: December 10, 2008
    Publication date: January 27, 2011
    Inventors: Bjarne Lindberg, Marius Stucheli, Josef Husmann
  • Patent number: 7811040
    Abstract: A safety device applied to appliances for lifting boards onto ceilings and walls comprises a telescopic mast, an upper part of which accommodates the board holder and traction and safety ropes operated by a manually controlled winch, a component for attaching and fastening the traction rope and safety rope so that they are at the same fastening level, and a mechanism for tensioning the safety rope. The attachment component is fixed in the lower receiving part of the terminal inner section of the telescopic assembly. The tensioning mechanism is external relative to the telescopic mast and situated facing the winch for winding the traction and safety ropes.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: October 12, 2010
    Assignee: Roger Mondelin SAS
    Inventors: Jean-Marc Bailly, Denis Narelli, Christophe Valette
  • Patent number: 7806237
    Abstract: An elevator may include an elevator car, a plurality of diverting pulleys on the elevator car, one or more hoisting ropes, a traction sheave, and a compensating system. The elevator car may be suspended by the plurality of diverting pulleys on the one or more hoisting ropes. The one or more hoisting ropes may have rope portions going upwards from a first set of the diverting pulleys and downwards from a second set. The rope portions going upwards may be under a first rope tension. The rope portions going downwards may be under a second rope tension. The compensating system may act on the one or more hoisting ropes to perform one or more of equalizing tension, compensating tension, equalizing elongation, and compensating elongation in the one or more hoisting ropes, and keeping a ratio of the first rope tension to the second rope tension substantially constant.
    Type: Grant
    Filed: January 5, 2007
    Date of Patent: October 5, 2010
    Assignee: Kone Corporation
    Inventors: Esko Aulanko, Jorma Mustalahti, Johannes De Jong
  • Patent number: 7798290
    Abstract: The present invention relates to an arrangement in an elevator without counterweight, which comprises at least a control unit (5), a hoisting machine (3) and a traction sheave (4) connected to it, and an elevator car (1) suspended on hoisting ropes (2) fixed to an essentially immovable place at their first ends and adjustably at their second ends, which elevator car (1) is fitted to travel backwards and forwards in an essentially vertical direction, and which elevator also comprises a tightening element (15) acting on the second end of the hoisting ropes (2). An actively operating actuator (17, 21, 24, 29) is in connection with the tightening element (15), which is fitted by means of feedback to keep the rope tension essentially at a predetermined level either by lightening or tightening the rope tension according to changes in the loading.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: September 21, 2010
    Assignee: Kone Corporation
    Inventors: Jorma Mustalahti, Esko Aulanko
  • Publication number: 20100212569
    Abstract: A lift assembly is provided for a platform such as used on a ship. The platform can have four spaced apart hitch points. In one embodiment, the lift assembly includes four trolley drive assemblies, each trolley drive assembly including a trolley guidable along a guide rail, and a drive configured to displace the trolley along the guide rails, each trolley being coupled to at least one hitch point. In a second embodiment, a tension leveling assembly is provided in a trolley drive assembly and is configured to couple each of the wire ropes to the trolley and maintain substantially the same amount of tension in each wire rope. In a third embodiment, the lift assembly can be provided on a ship that also includes a vessel for holding water.
    Type: Application
    Filed: February 22, 2010
    Publication date: August 26, 2010
    Applicant: PaR Systems, Inc.
    Inventors: William R. Johanek, Dale Hengel
  • Patent number: 7717237
    Abstract: A passenger or cargo elevator is disclosed that relies on pull chains in a closed system in which the chains are used both to pull the elevator car and also to pull the counterweights. In this way, it is possible not only to use counterweights that exceed the actual weight of the elevator car, but also additional counterweights of up to 50% of the load to be lifted may be employed without incurring the problem of the chains being jerked suddenly owing to inertia during braking. The pulling motor devices, such as planetary-type speed reducers, are coupled to servomotors which can be used to program the characteristics of the movements required by the elevator. The control system includes a programmable logic controller (PLC) and a servomotor controller which, together with the coders of the servomotors, provide position, speed, and torque characteristics for operation of the system.
    Type: Grant
    Filed: October 15, 2004
    Date of Patent: May 18, 2010
    Inventor: Luis Rodolfo Zamorano Morfín
  • Publication number: 20100089706
    Abstract: The object of the invention is an arrangement for compensating the rope forces of a traction sheave elevator, which elevator comprises at least a hoisting machine (5) and the traction sheave (6) connected to it, as well as an elevator car (1) suspended on hoisting roping (3), which is fitted to travel along guide rails (4), and in the rope suspension of which elevator is a rope force compensating element (8). The compensating element (8) comprises at least two compensation pulleys, of which the first part (3a) of the hoisting ropes (3) coming to the compensating element (8) are led over the top of the first compensation pulley (18) and the second part (3b) of the hoisting ropes (3) coming to the compensating element (8) are led to the second compensation pulley (19).
    Type: Application
    Filed: November 12, 2009
    Publication date: April 15, 2010
    Inventor: Sakari Korvenranta
  • Publication number: 20090229922
    Abstract: A system and method for minimizing compensation rope sway by altering the natural frequency of compensation ropes using servo actuators. The rope sway may be minimized by moving the compensation sheave to adjust the tension of the compensation rope or adjusting the position of the termination of a compensation rope to account for changes in the position of a structure. Servo actuators may also be used to re-level the elevator car to account for rope stretch.
    Type: Application
    Filed: September 15, 2008
    Publication date: September 17, 2009
    Inventors: Rory S. Smith, Stefan Kaczmarczyk, Jim Nickerson, Patrick M. Bass
  • Patent number: 7575098
    Abstract: A lift system and method for lifting or lowering items from one level to another within a building is accomplished by providing a lift platform. An upper level support structure having an opening is configured to allow passage of the platform through the opening. The opening is suspended above a generally open area of a lower level. An upper level frame is coupled to the support structure. A winch having a motor that rotates a drum is supported by the upper level frame. A length of cable secures at one end to the winch and at the other end to the platform through a biasing member. Operation of the winch rotates the drum to wind or unwind the cable to raise or lower the platform through the open area of the lower level without any laterally adjacent support or guidance structure within the open area.
    Type: Grant
    Filed: September 29, 2005
    Date of Patent: August 18, 2009
    Inventor: Jason Hartley
  • Publication number: 20090095574
    Abstract: A restraint device is disclosed that limits the movement of the cable or rope relative to the traction, thus reducing or eliminating the popping noise associated with the cable or rope snapping back against the traction sheave. In one embodiment, the restraint device comprises a molded component that is fitted to encompass the region of the sheave where separation of the wire rope from the sheave is most likely to occur. The restraint device may be mounted so that it is removable and replaceable with minimal dismantling of the hoist containing the sheave. The restraint device may be reversible so that one restraint device may by used for at least two cycles before being replaced. Indication of the need for replacement may be provided by including a second color material at the depth where wear reaches the allowable limit, thereby providing a visual signal to initiate replacement as seen during service.
    Type: Application
    Filed: October 12, 2007
    Publication date: April 16, 2009
    Applicant: SafeWorks, LLC
    Inventors: David Arevalo Romo, Christopher Gavin Brickell, John Jerome Haigh
  • Publication number: 20090050414
    Abstract: The invention relates to an arrangement for equalizing the rope force of a traction sheave elevator, said elevator comprising at least a hoisting machine (5) and a traction sheave (6) connected to it and an elevator car (1), which is suspended on a set of hoisting ropes (3) and fitted to move along guide rails (4), the rope suspension of said elevator comprising a rope force compensating device (20). The compensating device (20) comprises at least a first tensioning device (21) and a second tensioning device (22). The hoisting ropes in the set of hoisting ropes (3) are secured by one end to a point in conjunction with the first tensioning device (21) and by the other end to a point in conjunction with the second tensioning device (22). The rotary motions of the tensioning devices (21) and (22) are interconnected via a transmission ratio.
    Type: Application
    Filed: September 5, 2008
    Publication date: February 26, 2009
    Inventors: Jorma Mustalahti, Esko Aulanko, Pekka Rantanen
  • Patent number: 7481299
    Abstract: An elevator, which preferably is an elevator without counterweight and in which an elevator car is suspended by means of a set of hoisting ropes comprising one rope or a number of parallel ropes. The elevator has a traction sheave that moves the elevator car by means of the hoisting ropes. The elevator comprises rope portions of hoisting ropes going upwards and downwards from the elevator car, and the elevator has a compensating device acting on the hoisting ropes to equalize and/or compensate rope tension and/or rope elongation. The compensating device acting on the hoisting ropes of the elevator comprises at least one slack rope prevention means for preventing uncontrolled slackening of the hoisting ropes and/or uncontrolled motion of the compensating device.
    Type: Grant
    Filed: May 10, 2006
    Date of Patent: January 27, 2009
    Assignee: Kone Corporation
    Inventors: Jorma Mustalahti, Esko Aulanko