WO2005085116A2 - Ameliorations apportees a des monte-escaliers - Google Patents

Ameliorations apportees a des monte-escaliers Download PDF

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Publication number
WO2005085116A2
WO2005085116A2 PCT/GB2005/000776 GB2005000776W WO2005085116A2 WO 2005085116 A2 WO2005085116 A2 WO 2005085116A2 GB 2005000776 W GB2005000776 W GB 2005000776W WO 2005085116 A2 WO2005085116 A2 WO 2005085116A2
Authority
WO
WIPO (PCT)
Prior art keywords
roller
rail
carriage
roller set
stairlift
Prior art date
Application number
PCT/GB2005/000776
Other languages
English (en)
Other versions
WO2005085116A3 (fr
Inventor
Andreas Csaba Szentistvany
Martin John Colenutt
Original Assignee
Stannah Stairlifts Limited
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 Stannah Stairlifts Limited filed Critical Stannah Stairlifts Limited
Publication of WO2005085116A2 publication Critical patent/WO2005085116A2/fr
Publication of WO2005085116A3 publication Critical patent/WO2005085116A3/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
    • B66B9/06—Kinds or types of lifts in, or associated with, buildings or other structures inclined, e.g. serving blast furnaces
    • B66B9/08—Kinds or types of lifts in, or associated with, buildings or other structures inclined, e.g. serving blast furnaces associated with stairways, e.g. for transporting disabled persons
    • B66B9/0807—Driving mechanisms
    • B66B9/0815—Rack and pinion, friction rollers

Definitions

  • This invention relates to stairlifts and, in particular, to a curved stairlift.
  • the carriage of a curved stairlift must be able to traverse a variety of bends in a stairlift rail. These bends may include inside/outside bends in which the carriage turns in a substantially horizontal plane; transition bends in which the stairlift carriage changes direction in a substantially vertical plane; and helical bends in which the carriage changes direction both in a horizontal and in a vertical direction.
  • a stairlift carriage is typically supported on the stairlift rail by means of a plurality of rollers. Whatever the particular roller configuration, the rollers must not only prevent rotation of the carriage about the rail axis, but also allow smooth passage of the carriage along the rail, and about any type of curve included within the rail.
  • a further characteristic of the carriage roller arrangement described in WO 02/064481 is that, when the carriage is traversing an inclined section of rail, the contoured rollers which engage the side edges of the rail are subjected to considerable side loading and thus, considerable wear.
  • the invention provides a stairlift carriage for mounting on a stairlift rail, said carriage including:
  • a central roller set including a top roller positioned to, in use, engage an upper surface part of said rail and a bottom roller positioned to, in use, engage an opposed lower surface part of said rail, a line through the geometric centre of said central roller set, perpendicular to the alignment of said rail contacted thereby, defining a reference axis;
  • first and second roller sets being simultaneously displaceable with respect to said central roller set along first and second axes respectively, said first and second axes being substantially parallel to said reference axis,
  • said first and second roller sets being pivotable about said first and second axes, respectively in a manner such that pivotable movement of said first outer roller set about said first axis is mirrored by pivotable movement of said second roller set about said second axis,
  • each outer roller set is mounted to swivel about an axis substantially perpendicular to a vertical plane passing through a longitudinal centre line of said rail, and includes a top roller positioned to, in use, engage said upper surface part of said rail and a bottom roller positioned to, in use, engage said lower surface part of said rail.
  • each outer roller set further includes a plurality of rollers positioned to engage opposed side surface parts of said rail.
  • each outer roller set is displaceable with respect to the upper roller of each outer roller set about an axis which is substantially parallel to the longitudinal centreline of said rail.
  • said central roller set further includes rollers positioned to engage opposed side surfaces of said rail, said rollers being configured to resist rotational movement of said carriage about the axis of said rail.
  • said carriage further includes a drive pinion, said drive pinion being mounted concentrically with said bottom roller of said central roller set.
  • said carriage is configured for use with a rail as described in International Patent Application WO 2004/043845, each outer roller set being configured and mounted to swivel about an axis passing through the upper half of said rail.
  • each said outer roller set is configured and mounted to swivel about an axis passing through the point of maximum width of the upper half of said rail.
  • the bottom roller of at least one of said outer roller sets is displaceable, in a plane perpendicular to the longitudinal centre-line of said rail, to the top roller of said at least one of said outer roller sets.
  • the bottom roller of each of said outer roller sets is displaceable with respect to the upper roller in the same set.
  • a stairlift carriage for mounting on a stairlift rail, said carriage including:
  • a central roller set including a top roller positioned to, in use, engage an upper surface part of said rail and a bottom roller positioned to, in use, engage an opposed lower surface part of said rail, a line through the geometric centre of said central roller set, perpendicular to the alignment of said rail contacted thereby, defining a reference axis;
  • first and second roller sets being simultaneously displaceable with respect to said central roller set along first and second axes respectively, said first and second axes being substantially parallel to said reference axis,
  • said first and second roller sets being pivotable about said first and second axes, respectively in a manner such that pivotable movement of said first outer roller set about said first axis is mirrored by pivotable movement of said second roller set about said second axis,
  • said carriage being characterised in that the bottom roller of at least one of said outer roller sets is displaceable, in a plane perpendicular to the longitudinal centre-line of said rail, to the top roller of said at least one of said outer roller sets.
  • the bottom roller of each of said outer roller sets is displaceable with respect to the top roller in its outer set.
  • the invention provides a stairlift installation including a carriage as hereinbefore set forth.
  • the invention comprises any novel combination of any of the elements disclosed herein capable of addressing a problem in the stairlift art.
  • Figure 1 shows an isometric view of a typical curved stairlift installation
  • Figure 2 shows a rear isometric view, from below, of a carriage roller arrangement according to the invention
  • Figure 3 shows a front isometric view, from above, of the carriage roller arrangement shown in Figure 2;
  • Figure 4 shows an end elevational view of the carriage roller arrangement shown in Figures 2 and 3, in position on a stairlift rail;
  • Figure 5 shows a vertical cross-sectional view through a central roller set of a carriage roller arrangement according to the invention
  • Figure 6 shows a vertical cross-sectional view through an outer roller set of the carriage roller arrangement shown in Figures 2 to 4;
  • Figure 7 shows a view similar to Figure 6, but of an alternative roller configuration
  • Figure 8 shows an isometric view of the roller arrangement of Figures 2 to 4 negotiating a helical bend
  • Figure 9 shows a plan view of the roller arrangement shown in Figures 2 to 4 negotiating a helical bend
  • Figure 10 shows a view, from the rear, of that which is shown in Figures 8 and 9; -
  • Figure 11 shows an end on isometric view of the roller arrangement in a helical bend
  • Figure 12 shows a view similar to Figure 11 but of an alternative form of end roller set arrangement.
  • the invention provides a roller arrangement for mounting a stairlift chair/carriage 12 on a stairlift rail 13, the rail extending along staircase 14.
  • the roller arrangement described herein can readily accommodate carriage travel through inside/outside bends (not shown) in which the rail is curved in a substantially horizontal plane, and transition bends (not shown) in which the rail is curved in a substantially vertical plane
  • the particular roller arrangement disclosed herein has been devised, in particular, to allow passage of the carriage over helical bends whilst addressing wear issues inherent in the roller arrangement shown in our pending International Patent Application WO 02/064481.
  • a further objective is to keep the carriage firmly in contact with the rail - even at steep rail angles.
  • a helical bend is one in which the rail turns and rises at the same time.
  • Such a bend is shown at 15 in Figure 1.
  • a roller arrangement for a skate 20 is shown, the skate 20 being included within the chair and carriage assembly 12.
  • this skate 20 comprises a central roller set 22, a first outer roller set 24 and a second outer roller set 26.
  • the outer roller sets 24 and 26 are located on opposite sides of the central roller set 22 and, when the carriage is traversing a straight section of rail, the roller sets 22, 24 and 26 are arranged in line.
  • a feature of the rail described both in WO 02/064481 and WO 2004/043845 is that, when a helical is formed therein, the upper rail tubular section comprises the 'control' section and the lower rail tubular section is offset from the vertical axis of the top section to create the helical.
  • the circular cross section of the upper part of the rail allows the rollers of the outer roller sets to assume positions which are rotated about the axis of the upper part of the rail from those which are assumed when the carriage is traversing a straight section of rail.
  • the central roller set 22 provides the anchor for the carriage on the rail in the sense that the central roller set cannot move vertically with respect to the rail, or rotate about the axis of the rail.
  • the central roller set includes a top roller 30 ( Figure 5), a bottom roller 31, an inner lower lateral roller 32 and an upper outer lateral roller 33.
  • the vertically oriented rollers 30 and 31 locate the carriage vertically with respect to the rail, whilst the lateral rollers 32 and 33 prevent rotation of the carriage about the axis of the rail 13.
  • the rollers 30, 32 and 33 are mounted on a central chassis 35, the chassis 35 being the main fixing point to the remainder of the carriage assembly.
  • the bottom roller 31 is mounted over drive shaft 36.
  • Drive shaft 36 is rotated by a motor/gearbox unit (not shown).
  • Drive pinion 38 is keyed to the outer end of the drive shaft 36 and engages rack 40 extending along a lower edge of the rail 13. Thus, rotation of the pinion 38 causes the carriage to move longitudinally of the rail 13.
  • the bottom roller 31 is freely rotatable on the drive shaft 36 and can also move along the axis of the drive shaft 36.
  • the central roller set has a geometric vertical centre line 39 which, for present purposes, will be referred to as a reference axis 39.
  • the two outer roller sets 24 and 26 are substantially identical. Each includes a top roller 42, a bottom roller 43 and two lateral steering rollers 44 and 45.
  • the outer roller sets are mounted on sub-frames 46, each of which is mounted on a pillar 48 extending upwardly and parallel to the reference axis 39.
  • the sub-frames 46 are keyed together by keying member 50 to ensure that the roller sets 24 and 26 move together vertically with respect to the central set 22, and that the rotation of one of the outer roller sets about its pillar 48 is mirrored by rotation of the other set about its pillar 48.
  • rotation of the set 24 in a clockwise direction about pillar 48 will cause equal rotation of the set 26, in an anti-clockwise direction, about its pillar 48.
  • each outer roller set is mounted in a cradle 52, the cradle 52, in turn, being mounted to sub-frame 46 via a swivel bearing 54.
  • a swivel bearing 54 there is a single swivel bearing for each outer roller set which is located to one side of the rail 13. This arrangement leaves more than sufficient space on the opposite side of the rail to accommodate the mounting brackets (not shown) for the rail 13.
  • Each outer roller set can rotate about axis 56 ( Figures 3 & 6) although limit stops (not shown) may be included to limit inward swivel movement of the lower ends of the outer roller sets. Such limit stops would prevent interference of the bottom parts of the outer roller sets with the drive pinion 38, and would also maintain spacing between the outer roller sets, and the centre, which is advantageous in generating leverage to help drive the carriage through transition bends.
  • the axis 56 passes through the upper half of the rail and, more particularly, through the widest point of the upper half of the rail. This position is not essential, however, and the invention could be adapted so that axis 56 was at alternative vertical locations.
  • the outer roller sets are displaced on pillars 48 whilst the cradles 52 rotate about axes 56.
  • each cradle 52 is formed in two parts.
  • the first part or central section 60 provides a mount for the top roller 42 and lateral steering rollers 44 and 45.
  • the second part 62 in the form of side arms which slide with respect to the central section 60, provides a mount for the bottom roller 42.
  • the second part 62 is secured to the central section 60 through studs 64 fixed to the central section 60.
  • the side arms 62 include slots 66 through which the studs pass.
  • the combination of the studs 64 and slots 66 ensures that the bottom roller 43 can displace with respect to the top roller 42 through an arc whose centre is the centre 70 of the top rail section.
  • the side arms 62 are fixed to central cradle section 60 at a single pivot point 72 positioned just above the top centre of the rail 13.
  • the bottom roller 43 will move in an arc about the pivot 72 however, since the amount of arcuate movement required of roller 43 is relatively small when compared with the radius of the arc, the solution shown in Figure 12 works quite satisfactorily.
  • Biasing means are preferably provided to assist the skate arrangement to negotiate helical bends.
  • this biasing means takes the form of a coil spring 74 which provides a bias on the bottom roller 43 as the carriage enters a helical, and thus keeps the bottom roller tracking with the rail. As the bend straightens out, the curved or diablo shape of bottom roller 43 causes the outer roller sets to be drawn back into line.
  • the biasing means comprises a hair spring 76.
  • bottom roller 78 does not have the built up outer edge of roller 43, which outer edge can sometimes 'pick-up' on the rail, under cornering, and cause jamming.
  • a slider 80 is further provided to maintain the roller 78 in tracking engagement with the rail.
  • roller arrangement described above was devised with the particular intention that any carriage fitted with such a roller arrangement should be able to traverse helical bends in the stairlift rail.
  • the roller arrangement is shown negotiating a helical bend in Figures 8 to 12 inclusive.
  • the leading roller set 24 will also pivot about the pillar 48 on which it is mounted, such pivotal movement also causing the trailing roller set 26 to be pivoted in an opposite, mirror, fashion.
  • the lower roller of roller set 24 is displaced to one side of a vertical centre-line whist the lower roller of the trailing set 26 is displaced to the opposite side.
  • rollers 42 and 43 also eliminates side loading on the lateral rollers experienced in the arrangement shown in WO 02/064481.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Automation & Control Theory (AREA)
  • Structural Engineering (AREA)
  • Types And Forms Of Lifts (AREA)

Abstract

L'invention concerne un patin pour un monte-escalier courbé, le patin pouvant traverser des courbes de transition, des courbes internes/externes, et des courbes hélicoïdales dans un rail de monte-charge. Le patin comprend des ensembles de rouleaux externes sur n'importe quel côté d'un ensemble de rouleaux central, les ensembles de rouleaux externes étant maintenus en contact positif avec les surfaces supérieures et inférieures du rail.
PCT/GB2005/000776 2004-03-02 2005-03-02 Ameliorations apportees a des monte-escaliers WO2005085116A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0404647.0 2004-03-02
GB0404647A GB0404647D0 (en) 2004-03-02 2004-03-02 Improvements in or relating to stairlifts

Publications (2)

Publication Number Publication Date
WO2005085116A2 true WO2005085116A2 (fr) 2005-09-15
WO2005085116A3 WO2005085116A3 (fr) 2005-12-08

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PCT/GB2005/000776 WO2005085116A2 (fr) 2004-03-02 2005-03-02 Ameliorations apportees a des monte-escaliers

Country Status (2)

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GB (1) GB0404647D0 (fr)
WO (1) WO2005085116A2 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008047116A1 (fr) * 2006-10-20 2008-04-24 Stannah Stairlifts Limited Améliorations de monte-marches ou relatives à ceux-ci
NL2001096C2 (nl) * 2007-12-17 2009-06-18 Freelift Bv Hellingslift voor het bestijgen of afdalen van een helling of trap.
RU2468946C2 (ru) * 2011-01-21 2012-12-10 Алексей Иванович Карпенков Подвесной лестничный подъемник
CN103787172A (zh) * 2014-01-17 2014-05-14 常州大学 新型便捷式楼道电梯
NL2010013C2 (en) * 2012-12-19 2014-06-23 Thyssenkrupp Accessibility B V Stair lift drive.
NL2010014C2 (en) * 2012-12-19 2014-06-23 Thyssenkrupp Accessibility B V Stair lift drive with rotatable mounting part for seat.
NL2010012C2 (en) * 2012-12-19 2014-06-23 Thyssenkrupp Accessibility B V Stair lift drive system for a smooth dented rail.
US20150034423A1 (en) * 2012-02-29 2015-02-05 Otto Ooms B.V. Device and Rail System for Conveying a Load from a First to a Second Level, in Particular a Stair Lift
CN104555663A (zh) * 2015-01-06 2015-04-29 浙江大学城市学院 登楼椅
CN106672758A (zh) * 2017-03-09 2017-05-17 惠安盛泽建材有限公司 一种智能型老人电梯系统
IT201700117273A1 (it) * 2017-10-17 2019-04-17 Extrema S R L Carrello e apparato di supporto scorrevole per servoscala.

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4211870C1 (en) * 1992-04-08 1993-06-24 Gerd Dipl.-Ing. 4930 Detmold De Grass Drive for stairs lift - has load accommodation device displaceably arranged on guide rod guided with roller guides on upper and lower guide tubes
US6155382A (en) * 1995-10-02 2000-12-05 Thyssen De Reus B.V. Running gear for a drive mechanism for a rail-guided displacement device
WO2002064481A1 (fr) * 2001-02-12 2002-08-22 Stannah Stairlifts Limited Rail et chariot pour monte-escaliers
EP1236671A1 (fr) * 2001-03-01 2002-09-04 BC Lift A/S Mécanisme d'entrainement pour ascenseur d'escalier
EP1413541A1 (fr) * 2002-10-22 2004-04-28 BC Lift A/S Rail de guidage pour ascenseur d'escalier
WO2004043845A1 (fr) * 2002-11-13 2004-05-27 Stannah Stairlifts Limited Rail-guide ameliore pour monte-escaliers
EP1449801A1 (fr) * 2003-02-22 2004-08-25 Otto Ooms B.V. Motorisation pour monte-escalier

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4211870C1 (en) * 1992-04-08 1993-06-24 Gerd Dipl.-Ing. 4930 Detmold De Grass Drive for stairs lift - has load accommodation device displaceably arranged on guide rod guided with roller guides on upper and lower guide tubes
US6155382A (en) * 1995-10-02 2000-12-05 Thyssen De Reus B.V. Running gear for a drive mechanism for a rail-guided displacement device
WO2002064481A1 (fr) * 2001-02-12 2002-08-22 Stannah Stairlifts Limited Rail et chariot pour monte-escaliers
EP1236671A1 (fr) * 2001-03-01 2002-09-04 BC Lift A/S Mécanisme d'entrainement pour ascenseur d'escalier
EP1413541A1 (fr) * 2002-10-22 2004-04-28 BC Lift A/S Rail de guidage pour ascenseur d'escalier
WO2004043845A1 (fr) * 2002-11-13 2004-05-27 Stannah Stairlifts Limited Rail-guide ameliore pour monte-escaliers
EP1449801A1 (fr) * 2003-02-22 2004-08-25 Otto Ooms B.V. Motorisation pour monte-escalier

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8607936B2 (en) 2006-10-20 2013-12-17 Stannah Stairlifts Limited In or relating to stairlifts
WO2008047116A1 (fr) * 2006-10-20 2008-04-24 Stannah Stairlifts Limited Améliorations de monte-marches ou relatives à ceux-ci
NL2001096C2 (nl) * 2007-12-17 2009-06-18 Freelift Bv Hellingslift voor het bestijgen of afdalen van een helling of trap.
WO2009078704A1 (fr) * 2007-12-17 2009-06-25 Freelift B.V. Ascenseur de déclivité permettant de monter ou de descendre une pente ou des escaliers
RU2468946C2 (ru) * 2011-01-21 2012-12-10 Алексей Иванович Карпенков Подвесной лестничный подъемник
US20150034423A1 (en) * 2012-02-29 2015-02-05 Otto Ooms B.V. Device and Rail System for Conveying a Load from a First to a Second Level, in Particular a Stair Lift
US10011462B2 (en) * 2012-02-29 2018-07-03 Otto Ooms B.V. Device and rail system for conveying a load from a first to a second level, in particular a stair lift
CN105073620A (zh) * 2012-12-19 2015-11-18 蒂森克虏伯家用电梯私人有限公司 具有座椅用可旋转安装部件的楼梯升降机驱动装置
CN104995119A (zh) * 2012-12-19 2015-10-21 蒂森克虏伯家用电梯私人有限公司 用于光滑凹形导轨的楼梯升降机驱动系统
WO2014098574A1 (fr) * 2012-12-19 2014-06-26 Thyssenkrupp Accessibility B.V. Entraînement de monte-escalier
WO2014098575A1 (fr) * 2012-12-19 2014-06-26 Thyssenkrupp Accessibility B.V. Entraînement de monte-escalier ayant une partie de support rotative pour un siège
WO2014098573A3 (fr) * 2012-12-19 2014-09-04 Thyssenkrupp Accessibility B.V. Système d'entraînement de monte-escalier pour rail denté uniforme
NL2010014C2 (en) * 2012-12-19 2014-06-23 Thyssenkrupp Accessibility B V Stair lift drive with rotatable mounting part for seat.
NL2010013C2 (en) * 2012-12-19 2014-06-23 Thyssenkrupp Accessibility B V Stair lift drive.
NL2010012C2 (en) * 2012-12-19 2014-06-23 Thyssenkrupp Accessibility B V Stair lift drive system for a smooth dented rail.
CN103787172A (zh) * 2014-01-17 2014-05-14 常州大学 新型便捷式楼道电梯
CN104555663A (zh) * 2015-01-06 2015-04-29 浙江大学城市学院 登楼椅
CN106672758A (zh) * 2017-03-09 2017-05-17 惠安盛泽建材有限公司 一种智能型老人电梯系统
IT201700117273A1 (it) * 2017-10-17 2019-04-17 Extrema S R L Carrello e apparato di supporto scorrevole per servoscala.
WO2019077479A1 (fr) * 2017-10-17 2019-04-25 Extrema S.R.L. Chariot et appareil de support coulissant pour monte-escalier
US11560290B2 (en) 2017-10-17 2023-01-24 Extrema S.R.L. Carriage and a sliding support apparatus for a stairlift

Also Published As

Publication number Publication date
WO2005085116A3 (fr) 2005-12-08
GB0404647D0 (en) 2004-04-07

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