WO1999042399A1 - Chaise-escalier et systeme de rails destine a cette chaise-escalier - Google Patents

Chaise-escalier et systeme de rails destine a cette chaise-escalier Download PDF

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Publication number
WO1999042399A1
WO1999042399A1 PCT/NL1999/000095 NL9900095W WO9942399A1 WO 1999042399 A1 WO1999042399 A1 WO 1999042399A1 NL 9900095 W NL9900095 W NL 9900095W WO 9942399 A1 WO9942399 A1 WO 9942399A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat unit
stop
rail
stairlift
rail system
Prior art date
Application number
PCT/NL1999/000095
Other languages
English (en)
Inventor
Otto Ooms
Alex Ooms
Original Assignee
Otto Ooms B.V.
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 Otto Ooms B.V. filed Critical Otto Ooms B.V.
Priority to AU27485/99A priority Critical patent/AU2748599A/en
Publication of WO1999042399A1 publication Critical patent/WO1999042399A1/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
    • B66B9/0846—Guide rail

Definitions

  • the invention relates to a stairlift provided with a rail system and a seat unit which can be moved along the rail system.
  • a rail system is known for instance from WO 96/20125.
  • stops or switches can for instance be present on the extremities of the rail which can co- act with switches or stops situated on the seat unit, so that the seat unit stops when the extremity of the rail system is reached.
  • a movable rail part is situated in the correct position when the seat unit approaches that rail part.
  • a movable rail part is known from WO97/26207.
  • the invention has for its object to provide a stairlift with a seat unit and a rail system wherein the seat unit can be brought to a stop at one or more determined locations and/or wherein it is possible in efficient manner to ensure that a movable rail part is situated in the correct position.
  • the rail system is provided according to the invention with a displaceable stop which can come 2 into contact with a part of the seat unit during the movement of the seat unit along the rail system.
  • the stop can herein bring the seat unit to a stop when the stop is placed in a position wherein the stop actuates a switch in the passing seat unit.
  • the stop can be displaced to a position in which the stop does not come into contact with the seat unit.
  • Displacement of the stop between a position in which the stop can come into contact with said part of the seat unit, i.e. the switch, and the position in which the stop is out of reach of said part can take place on the basis of an electrical signal coming from a detector which for instance detects an opened door or a determined position of a movable rail part.
  • the stop is preferably pressed by a spring into the position in which the stop can come into contact with the switch on the seat unit, so that this safe position in which the movement of the seat unit is stopped is occupied as long as the adjusting mechanism (electromagnet) of the stop is not energized, for instance because of power supply failure.
  • the stop can also be embodied such that the switch of the seat unit is only operated in a determined direction of movement of the seat unit. This will be further explained with reference to an embodiment .
  • a 3 locking pin which can be inserted into a recess of the movable rail part to connect this rail part to the fixed rail of the rail system in the position in which this locking pin is not inserted in the rail part can for instance form the stop with which the above mentioned part of the seat unit collides.
  • the stop is preferably connected mechanically to the movable rail part or a control mechanism thereof, so that when the rail part is in the inactive position the stop is displaced such that the stop comes into contact with said part of the seat unit when the seat unit approaches the rail part .
  • the stop can also be displaceable in that during the movement of the seat unit said part of the seat unit displaces the stop, wherein this part presses against the stop.
  • the movable rail part can be coupled to the seat unit such that said rail part is placed into the active position when the seat unit moves toward the rail part and/or is placed into the inactive position when the seat unit moves away from the rail part.
  • Driving of the seat unit herein results not only in movement of this seat unit but also in movement of the movable rail part . Not only does this save on a drive but also results in the movable rail part always being situated in the inactive position, wherein it causes less inconvenience, while the active position is only taken up when this is necessary for use of the rail system. 4
  • a separate makeshift arrangement with which the movable rail part can be moved manually is herein also unnecessary since the movable rail part is placed in the correct position by the approaching seat unit.
  • the stairlift can be embodied such that in the case of a total power supply failure the seat unit can be displaced downward by means of the force of gravity, controlled by a person seated thereon, wherein the movable rail part situated on the lower extremity of the rail system is placed into its inactive position by the approaching seat unit.
  • the invention further relates to the rail system for the above stairlift.
  • the invention also relates to a method of safeguarding a stairlift provided with a rail system and a seat unit which can be moved along the rail system, wherein the drive for moving the seat unit is switched off by a stop of the rail system which comes into contact with a switch on the seat unit, wherein the stop is displaced between a position in which the stop can come into contact with said switch and a position in which the stop is out of reach of said switch.
  • the invention further relates to a method of moving a movable rail part of a rail system of a stairlift by means of a control mechanism, which rail system is provided with a fixed rail arranged along a staircase and with a movable rail part which can move between an active position in which the rail part connects onto the fixed rail and an inactive position in which the rail part causes less inconvenience, wherein the control mechanism carries the rail part from the inactive position into the active position due to the movement of the seat unit which is displaced along the rail system. This can take place by displacing a stop present on the control 5 mechanism by pushing it aside with a part of the seat unit.
  • a displaceable stop for the purpose of bringing the seat unit to a standstill as required at one or more predetermined locations by displacing these stops into an active position can be deemed a separate invention.
  • Moving of the movable rail part by means of the movement of the seat unit can likewise be deemed a separate invention.
  • Displacement of the stop by mechanical connection thereof to the movable rail part or parts thereof can also be deemed a separate invention.
  • Figures 1-3 show a first embodiment
  • figures 4 and 5 show a second embodiment
  • figure 6 shows the first embodiment in combination with a movable rail part
  • figures 7 and 8 show a third embodiment .
  • the figures show in each case the rear of a seat unit 1 which can be displaced along a rail system consisting of two round tubes 2,3.
  • the seat unit 1 is connected by means of guide member 4 to tube 2 of the rail system and by means of guide member 5 to tube 3 of the rail system.
  • Guide members 4,5 are provided with wheels which rest against tubes 2,3 and which can be 6 driven in order to displace seat unit 1 along rail system 2,3.
  • This displacement can also take place by means of a gear rack which is arranged in the rail system and which is in engagement with a rotatably driven toothed wheel arranged in the seat unit .
  • Driving of the seat unit can take place with external power supply, for instance with an electrical conducting wire running to the seat unit or by slide contacts which are connected to the seat unit and which displace in a stationary rail in which voltage is present.
  • the power supply is preferably provided by one or more batteries (accumulators) present in seat unit 1.
  • a switch 6 Arranged on guide member 4 is a switch 6 with which the drive of seat unit 1 can be switched off to bring seat unit 1 to a stop.
  • Rail system 2,3 is further provided with a displaceable stop 7 which can be displaced between the active position in which stop 7 can come into contact with switch 6 and an inactive position wherein stop 7 remains out of reach of parts of seat unit 1.
  • Figures 1,2,3 show a stop 7 which is pivotable on a shaft 8.
  • Figure 1 shows the inactive position of stop 7, wherein stop 7 is displaced by means of an electromagnet 9 into a position wherein stop 7 cannot come into contact with the housing of guide member 5 on which switch 6 is arranged.
  • the active position of stop 7 is shown in figures 2 and 3, wherein electromagnet 9 is not energized and stop 7 is displaced into the active position by means of spiral spring 10.
  • seat unit 1 can pass over stop 7 in both directions as indicated with arrow 11.
  • seat unit 1 is situated at a location such that switch 6 is depressed by stop 7, whereby the seat cannot move in downward direction.
  • switch 6 operates the drive 7 of the seat such that only a movement in upward direction is possible as indicated with arrow 11.
  • the position of stop 7 shown in figure 1 is the normal position wherein the seat lift has unlimited use. This position of stop 7 is achieved by a continuous energizing of electromagnet 9. In the case of power failure, stop 7 is carried into the position shown in figure 2 by the influence of spiral spring 10. This power interruption may be the result of power supply failure, wherein it is not desirable for seat unit 1 to be able to move unhindered along rail system 2,3. Electromagnet 9 can also be operated by detection means which detect whether the path followed by seat unit 1 is free of obstacles and/or whether relevant parts of the rail system are in a position to guide seat unit 1. Figure 6 thus shows a situation wherein the lower rail part 15,16 of the rail system is displaced to a position wherein it does not connect onto the other fixed part 2,3 of the rail system. Stop 7 herein lies in a position which prevents seat unit 1 moving further downward.
  • Figure 3 shows that the stop 7 pivotable on shaft 8 is embodied such that the seat unit can always pass when it is moving in upward direction, while the progress of seat unit 1 can be blocked when it moves in downward direction.
  • FIGS 4 and 5 show an embodiment wherein stop 7 takes the form of a guide plate which can be displaced by means of electromagnet 9.
  • a spiral spring 10 is also present herein which pushes the stop into the active position when electromagnet 9 is not energized.
  • Switch 6 is provided with a pivot arm 12 which can come into contact with stop 7.
  • the direction in which seat unit 1 moves can herein be detected by detecting the direction in which pivot arm 12 pivots. Blocking of seat unit 1, i.e. switch-off of the drive, can thus be limited to the 8 situation where seat unit 1 moves in a particular direction.
  • a stop 7 can be arranged at one or more locations of the rail system in order to safeguard the stairlift such that the movement of the seat lift is limited or blocked when movement of the seat unit is obstructed at determined positions .
  • Such a safety system is particularly important when the power supply for driving the seat unit is provided by batteries present in the seat unit .
  • Figures 6-8 show a rail system consisting of a fixed part with tubes 2,3 and a displaceable rail part comprising tubes 15,16. Tubes 2,3 are mounted on post 17 (figure 6), this post not being shown in figures 7 and 8. A swivel arm 18 consisting of two parts is further connected to movable rail part 15,16.
  • movable rail part 15,16 is shown in the inactive position, wherein this rail part is situated under the remaining part of the rail system. This may be important if the lower part of the rail system obstructs the passage of the landing present at the bottom of a staircase.
  • Figure 6 does not show the guide mechanism with which the upper extremity of movable rail part 15,16 is guided.
  • This guide mechanism can be provided with a mechanical connection to stop 7 so that stop 7 is always placed in the blocking position when the movable rail part is in the inactive position.
  • Electromagnet 9 is herein superfluous, which may signify a simplification of the rail system.
  • Figures 7 and 8 show a rail system with a movable rail part 15,16, wherein this movable rail part is guided at the upper end by an endless chain 20 running over three 9 chain wheels 21,22,23.
  • the upper extremity of the movable rail part is connected to chain 20 at a position indicated in figure 7 with reference numeral 24.
  • Swivel arm 18 swivels herein.
  • the movable rail part is guided by means of a chain 20.
  • a chain 20 There are of course many other guide options, such as systems of rods or guide rails.
  • the driving can herein also take place by moving the seat unit .

Landscapes

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

Abstract

L'invention concerne une chaise-escalier comprenant un système de rails et un siège (1) qui peut se déplacer le long du système de rails. Le système de rails est pourvu d'une butée mobile (7) pouvant venir en contact avec une partie du siège lors du déplacement du siège le long du système de rails. La butée peut provoquer une commutation dans le siège ou peut être déplacée par le siège de façon à constituer une partie de rail mobile.
PCT/NL1999/000095 1998-02-23 1999-02-23 Chaise-escalier et systeme de rails destine a cette chaise-escalier WO1999042399A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU27485/99A AU2748599A (en) 1998-02-23 1999-02-23 Stairlift and rail system for a stairlift

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1008392A NL1008392C2 (nl) 1998-02-23 1998-02-23 Traplift en railsysteem voor een traplift.
NL1008392 1998-02-23

Publications (1)

Publication Number Publication Date
WO1999042399A1 true WO1999042399A1 (fr) 1999-08-26

Family

ID=19766599

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL1999/000095 WO1999042399A1 (fr) 1998-02-23 1999-02-23 Chaise-escalier et systeme de rails destine a cette chaise-escalier

Country Status (3)

Country Link
AU (1) AU2748599A (fr)
NL (1) NL1008392C2 (fr)
WO (1) WO1999042399A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000063103A1 (fr) * 1999-04-15 2000-10-26 Stannah Stairlifts Limited Verrouillage de securite de monte-escalier
NL1023592C2 (nl) * 2003-06-04 2004-12-07 Freelift Bv Inrichting voor transport langs trap met geleider.
US7568555B2 (en) * 2001-07-03 2009-08-04 Freelift B.V. Rail system for a stairlift with movable end section
US20120261216A1 (en) * 2011-04-15 2012-10-18 Harmar Summit, Llc Stairlift with folding track

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2619195A (en) * 1950-07-28 1952-11-25 Electro Lift Chair Corp Elevator for invalids
US3966022A (en) * 1974-10-15 1976-06-29 Cheney Robert W Wheelchair lift assembly
DE3210904A1 (de) * 1982-03-25 1983-09-29 Paul Nitzke GmbH & Co KG, 4790 Paderborn Schraegaufzug
US5125481A (en) * 1990-09-26 1992-06-30 Hideaki Shibata Diagonal elevation apparatus
WO1997026207A1 (fr) * 1996-01-17 1997-07-24 Otto Ooms B.V. Systeme de rail pour monte-escalier

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2619195A (en) * 1950-07-28 1952-11-25 Electro Lift Chair Corp Elevator for invalids
US3966022A (en) * 1974-10-15 1976-06-29 Cheney Robert W Wheelchair lift assembly
DE3210904A1 (de) * 1982-03-25 1983-09-29 Paul Nitzke GmbH & Co KG, 4790 Paderborn Schraegaufzug
US5125481A (en) * 1990-09-26 1992-06-30 Hideaki Shibata Diagonal elevation apparatus
WO1997026207A1 (fr) * 1996-01-17 1997-07-24 Otto Ooms B.V. Systeme de rail pour monte-escalier

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000063103A1 (fr) * 1999-04-15 2000-10-26 Stannah Stairlifts Limited Verrouillage de securite de monte-escalier
US7568555B2 (en) * 2001-07-03 2009-08-04 Freelift B.V. Rail system for a stairlift with movable end section
NL1023592C2 (nl) * 2003-06-04 2004-12-07 Freelift Bv Inrichting voor transport langs trap met geleider.
WO2004108578A1 (fr) * 2003-06-04 2004-12-16 Freelift B.V. Dispositif d'inclinaison pour la partie mobile d'un guide d'ascenceur d'escalier
US7523807B2 (en) 2003-06-04 2009-04-28 Freelift B.V. Tilt mechanism for the movable part of a stairlift guide
US20120261216A1 (en) * 2011-04-15 2012-10-18 Harmar Summit, Llc Stairlift with folding track

Also Published As

Publication number Publication date
NL1008392C2 (nl) 1999-08-24
AU2748599A (en) 1999-09-06

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