WO2008012593A1 - Dispositif régulateur pour ascenseur à suspension latérale - Google Patents

Dispositif régulateur pour ascenseur à suspension latérale Download PDF

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Publication number
WO2008012593A1
WO2008012593A1 PCT/IB2006/002029 IB2006002029W WO2008012593A1 WO 2008012593 A1 WO2008012593 A1 WO 2008012593A1 IB 2006002029 W IB2006002029 W IB 2006002029W WO 2008012593 A1 WO2008012593 A1 WO 2008012593A1
Authority
WO
WIPO (PCT)
Prior art keywords
governor
guide rails
car
tensioner
elevator system
Prior art date
Application number
PCT/IB2006/002029
Other languages
English (en)
Inventor
Cristobal Gil
Jose Luis Vergara
Marco Ferrari
Original Assignee
Otis Elevator Company
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 Otis Elevator Company filed Critical Otis Elevator Company
Priority to PCT/IB2006/002029 priority Critical patent/WO2008012593A1/fr
Publication of WO2008012593A1 publication Critical patent/WO2008012593A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/0065—Roping
    • B66B11/008—Roping with hoisting rope or cable operated by frictional engagement with a winding drum or sheave
    • B66B11/0085—Roping with hoisting rope or cable operated by frictional engagement with a winding drum or sheave of rucksack elevators

Definitions

  • the present invention relates to elevators and in particular to a cantilever elevator arrangement which reduces hoistway space.
  • the governor typically comprises a governor wheel and a governor cable which is attached to the elevator car and runs over the governor wheel.
  • the governor cable is maintained in driving engagement with the governor wheel by means of a tensioner aligned with the governor.
  • the rotation of the governor wheel may be used to operate safety devices should the car move too quickly within the hoistway, or it may provide other information to a control system, for example information as to the position of the elevator car within the hoistway.
  • the elevator car In a cantilever elevator installation, the elevator car is cantilevered from a pair of car guide rails. A pair of counterweight guide rails is provided parallel to and adjacent the car guide rails.
  • This arrangement provides relatively little space to accommodate a governor and tensioner, so the governor and tensioner are mounted between the elevator car and the counterweight or between the elevator car and the hoistway wall.
  • the governor and tensioner may be fairly large, this may require a significant space to be provided within the hoistway. Specifically, a larger hoistway may be necessary to accommodate these devices or a hoistway of a given size may only be able to accommodate a smaller elevator car. Neither of these options is particularly attractive.
  • the present invention seeks to overcome or at least mitigate the problems described above, and from a first aspect provides a cantilever elevator system comprising: an elevator car; a counterweight; a pair of car guide rails; a pair of counterweight guide rails; a governor; and a tensioner associated with the governor; wherein at least one car guide rail and one counterweight guide rail are spaced apart from one another so as to define a gap therebetween, said governor and said tensioner being arranged within said gap or within a vertical projection thereof.
  • the car and counterweight guide rails are spaced from one another so as to define a space which accommodates the governor and tensioner. This allows the governor and tensioner to be accommodated more compactly within the hoistway, thereby providing a space saving.
  • the respective car and counterweight guide rails may be spaced apart in just one direction across the hoistway, i.e. spaced apart in a direction generally parallel to or perpendicular to the hoistway wall. Preferably, however, they are spaced apart in two directions so as to provide greater flexibility as to where the tensioner and governor should be positioned.
  • the governor and tensioner may be arranged to extend generally perpendicular or parallel to the wall of the hoistway. Preferably however, they are arranged to extend at an angle thereto.
  • the guide rails each have a base member and a blade extending from the base member.
  • the spacing between the respective car and counterweight guide rails is preferably provided between the respective base members thereof.
  • the governor is located at the top of the hoistway. It may advantageously be attached to one or both of the spaced apart car and counterweight guide rails or in the space above the guide rails. Depending on the particular layout, it may be mounted to an adjacent hoistway wall or to the ceiling of the hoistway.
  • the tensioner is preferably placed at the base of the hoistway. Again it may be attached to one or both of the spaced guide rails, to an adjacent wall or to the bottom of the hoistway.
  • the governor and tensioner device are preferably designed to be relatively thin. Most preferably, the respective thicknesses of the governor and tensioner are less than one third, preferably one quarter of their respective widths.
  • Figure 1 shows, schematically, an elevator car with a governor
  • FIG. 2 shows a plan view of an elevator system in accordance with the invention.
  • FIGS 3A and 3B show alternative guide rail arrangements.
  • a cantilever elevator system 2 is shown schematically.
  • This system 2 comprises an elevator car 4 which runs on car guide rails 6.
  • the car 4 projects from the guide rails 6 in a cantilever manner.
  • the elevator car 4 is coupled to a counterweight (not shown) and is moved up and down in the hoistway by an elevator machine (also not shown).
  • the elevator system 2 is further provided with a governor 8.
  • the governor 8 is mounted at the upper end 12 of the hoistway 14 and comprises a rotary member around which passes a governor cable 10.
  • the governor cable 10 also extends around a tensioner 16 arranged in the bottom of the elevator hoistway 14 and generally aligned with the governor 8.
  • the governor cable 10 is attached by means 18 to the elevator car 4 such that as the elevator car 4 moves up and down along the guide rails 6 the governor cable 10 moves with the car so as to rotate both the tensioner 16 and the governor 8.
  • the tensioner 16 ensures that the governor cable 10 remains in driving engagement with the governor 8.
  • the rotation of the governor 8 is communicated to a control 20 for safety or other control purposes.
  • FIG 2 an arrangement in accordance with the invention is shown in greater detail.
  • the car 4 is shown mounted to a pair of car guide rails 6a, 6b.
  • Each guide rail 6a, 6b is generally T-shaped in cross-section, comprising a base 22 mounted to a support 24 and a blade 26 which engages rollers 28 provided on the car 4.
  • a counterweight 30 which runs on counterweight guide rails
  • each counterweight guide rail comprises a base 34 attached to the support 24 and a blade 36 which engages with a guide 38 provided on the counterweight 30.
  • the base 22 of car guide rail 6b and the base 34 of the adjacent counterweight guide rail 32b are spaced apart in directions parallel to and perpendicular to the hoistway wall 40 so as to define a gap 38 therebetween.
  • the governor 8 and the tensioner 10 (which is aligned vertically under the governor 8), are arranged in the gap 38 or in a space vertically aligned therewith.
  • the governor 8 and tensioner 10 are arranged at an inclined angle ⁇ to the wall 40 of the hoistway 14.
  • the governor 8 and tensioner 10 may be mounted to one or both of guide rails 6b, 32b or to surrounding structure e.g. the hoistway ceiling or wall 40.
  • the governor 8 is arranged above the mounting 24 for the guide rails 6b, 32b so as not to compromise the mounting of the guide rails 6b, 32b. It will be seen that the governor 8 is relatively thin, having a thickness t which is significantly smaller than (typically less than one third of) its width w.
  • car guide rails 6 and counterweight guide rails 32 are envisaged in accordance with the invention.
  • the left hand pair of guide rails 6b, 32b are spaced apart more than the right hand pair of guide rails 6a, 32a.
  • the guide rails may be symmetrically arranged as shown in Figure 3 a.
  • the governor 8 and tensioner 10 may be provided in either gap 38 in this configuration.
  • the guide rails may also be arranged such that one pair of guide rails 6a, 32a is substantially aligned in a direction perpendicular to the hoistway wall, as shown in Figure 3b, with the governor 8 and tensioner 10 being positioned in the gap 38 between the guide rails 6b, 32b.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)

Abstract

Système d'ascenseur cantilever (2) comprenant une cabine d'ascenseur (4), un contrepoids (30), une paire de rails de guidage (6a, 6b) de la cabine, une paire de rails de guidage (32a, 32b) du contrepoids, un régulateur (8) et un tensionneur (10) associé au régulateur (8). Au moins un rail de guidage (6b) de la cabine et un rail de guidage (32b) du contrepoids sont espacés l'un de l'autre de manière à définir un espace (38) entre ceux-ci. Le régulateur (8) et le tensionneur (10) sont disposés à l'intérieur de cet espace (38) ou à l'intérieur d'une projection verticale de celui-ci.
PCT/IB2006/002029 2006-07-25 2006-07-25 Dispositif régulateur pour ascenseur à suspension latérale WO2008012593A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IB2006/002029 WO2008012593A1 (fr) 2006-07-25 2006-07-25 Dispositif régulateur pour ascenseur à suspension latérale

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2006/002029 WO2008012593A1 (fr) 2006-07-25 2006-07-25 Dispositif régulateur pour ascenseur à suspension latérale

Publications (1)

Publication Number Publication Date
WO2008012593A1 true WO2008012593A1 (fr) 2008-01-31

Family

ID=37761960

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2006/002029 WO2008012593A1 (fr) 2006-07-25 2006-07-25 Dispositif régulateur pour ascenseur à suspension latérale

Country Status (1)

Country Link
WO (1) WO2008012593A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20080465A1 (it) * 2008-07-28 2010-01-29 Sele S R L Apparecchio per il sollevamento di persone e cose.
EP3176120A1 (fr) * 2015-10-12 2017-06-07 Inventio AG Ascenseur à poulie de traction de type sac à dos

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1875118A (en) * 1929-12-16 1932-08-30 Haughton Elevator & Machine Co Elevator safety device
US5782319A (en) * 1996-02-12 1998-07-21 Montgomery Kone Inc. Elevator car and counterweight safety
WO1999033742A1 (fr) * 1997-12-23 1999-07-08 Inventio Ag Ascenseur a cables avec poulie motrice
JP2000302350A (ja) * 1999-04-22 2000-10-31 Toshiba Corp エレベータ装置
DE20008913U1 (de) * 2000-05-22 2000-12-07 Radetzky Joachim Personen-Lasten-Aufzug mit Antriebs-Anordnung
DE10233799A1 (de) * 2002-07-25 2004-02-19 Rud. Prey Gmbh Seilaufzug

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1875118A (en) * 1929-12-16 1932-08-30 Haughton Elevator & Machine Co Elevator safety device
US5782319A (en) * 1996-02-12 1998-07-21 Montgomery Kone Inc. Elevator car and counterweight safety
WO1999033742A1 (fr) * 1997-12-23 1999-07-08 Inventio Ag Ascenseur a cables avec poulie motrice
JP2000302350A (ja) * 1999-04-22 2000-10-31 Toshiba Corp エレベータ装置
DE20008913U1 (de) * 2000-05-22 2000-12-07 Radetzky Joachim Personen-Lasten-Aufzug mit Antriebs-Anordnung
DE10233799A1 (de) * 2002-07-25 2004-02-19 Rud. Prey Gmbh Seilaufzug

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20080465A1 (it) * 2008-07-28 2010-01-29 Sele S R L Apparecchio per il sollevamento di persone e cose.
EP3176120A1 (fr) * 2015-10-12 2017-06-07 Inventio AG Ascenseur à poulie de traction de type sac à dos

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