EP3208225A1 - Fauteuil monte-escalier - Google Patents

Fauteuil monte-escalier Download PDF

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Publication number
EP3208225A1
EP3208225A1 EP16156184.0A EP16156184A EP3208225A1 EP 3208225 A1 EP3208225 A1 EP 3208225A1 EP 16156184 A EP16156184 A EP 16156184A EP 3208225 A1 EP3208225 A1 EP 3208225A1
Authority
EP
European Patent Office
Prior art keywords
platform
rail
motor
orientation
stairlift
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP16156184.0A
Other languages
German (de)
English (en)
Other versions
EP3208225B1 (fr
Inventor
Arnold van der Heiden
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ThyssenKrupp AG
ThyssenKrupp Stairlifts BV
Original Assignee
ThyssenKrupp AG
ThyssenKrupp Accessibility BV
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 ThyssenKrupp AG, ThyssenKrupp Accessibility BV filed Critical ThyssenKrupp AG
Priority to EP16156184.0A priority Critical patent/EP3208225B1/fr
Priority to ES16156184T priority patent/ES2710505T3/es
Publication of EP3208225A1 publication Critical patent/EP3208225A1/fr
Application granted granted Critical
Publication of EP3208225B1 publication Critical patent/EP3208225B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B66B9/0838—Levelling gears
    • 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
    • B66B9/0853—Lifting platforms, e.g. constructional features

Definitions

  • a stairlift is a solution for the transport of sitting persons or things in places where there is, for example, no room for a normal lift shaft.
  • stairlifts comprise a rail, which is mounted above the stairway on the inner or outer wall of the stairwell, a platform (for instance a chair, or a floor for, for instance, a wheelchair) and a first drive mechanism for moving the platform along the rail and thereby along the stairway. It is further known to provide a second drive mechanism to keep the platform horizontal, which is known in the field by the term "levelling". This second drive mechanism rotates the platform about a horizontal axis or shaft relative to the rail, depending on variations of the gradient of the rail.
  • the stairlift comprises a rail for mounting along a stairway, a platform which is movably mounted on the rail, and a drive mechanism for moving the platform along the rail, wherein the platform is mounted so as to be movable about a vertical axis, wherein the platform is further mounted so as to be tiltable about a horizontal axis such that it can be tilted out of a horizontal orientation into a tilted orientation.
  • a method for driving a platform along a rail mounted on a stairway comprising the steps of automatically rotating the platform about a vertical axis or shaft during the movement of the platform along the rail, and automatically tilting the platform about a horizontal axis or shaft before or during movement of the platform such that the platform is tilted out of a horizontal orientation into a tilted orientation.
  • the distance between the rail (or the staircase) and the head of a user can be reduced.
  • the danger of a user colliding with the bulkhead can be minimised or completely avoided.
  • the tilted orientation is such that a side of the platform facing in the upward direction of the stairway is lower than a side of the platform facing in the downward direction of the stairway.
  • the platform is adapted such that the tilted orientation is within a range of 0° - +/- 20°, in particular between 0° - +/-15° with respect to the horizontal orientation.
  • the platform is adapted to be moved along the rail while or after being tilted into the tilted orientation, and/or while or after being rotated.
  • the stairlift comprises at least one collision sensor for sensing obstacles in the path or vicinity of the platform and a control device for controlling movement of the platform in dependence on signals received from the at least one collision sensor, wherein the control device is adapted to effect a tilt of the platform about the horizontal axis and/or a swivel of the platform about the vertical axis in the vicinity of obstacles.
  • the drive mechanism for moving the platform along the rail comprises a first motor, a second motor being provided which is adapted to maintain the platform in a horizontal orientation, a third motor being provided which is adapted to rotate the platform about a vertical axis or shaft and a fourth motor being provided which is adapted to tilt the platform out of its horizontal orientation into a tilted orientation.
  • the fourth motor adapted to tilt the platform out of its horizontal orientation is positioned above the third motor adapted to rotate the platform about a vertical axis.
  • the term "above” as used herein can either mean directly above the third motor, i.e. also on the vertical axis, or slightly displaced from the vertical axis. In other words, in case of a normal positioning of the platform, i.e. without any tilting, the fourth motor will be positioned further away from the rail that the third motor.
  • Fig. 1 and Fig 3 show a stairlift, with a rail 10 mounted along a stairway 8, and a platform 12 moveably mounted on rail 10.
  • platform 12 is a chair.
  • the term "platform” is to be understood in a general sense as any structure with a supporting surface, without necessarily being limited to a surface.
  • platform 12 is provided as a chair, especially comprising a seat 12a and a backrest 12b.
  • a first motor 14 serves to drive the platform 12 along rail-10.
  • First motor 14 is, for instance, provided with a gear wheel (not shown) in a manner known per se and rail 10 is provided with a row of teeth (not shown) with which the gear wheel engages, so that, upon rotation of first motor 14, platform 12 moves up or down along rail 10.
  • platform 12 is always supported by essentially one point on rail 10, so that, without further measures, the orientation of platform 12 would follow the orientation of the rail at the location of the supporting point, as will be explained further below.
  • the stairlift is preferably provided with a second motor 16, which serves to maintain platform 12, especially a seat 12a of platform 12, in case platform 12 is provided as a chair, horizontal.
  • the second motor 16 serves to rotate the platform about a horizontal shaft or axis 19. The rotation about this shaft 19 compensates for the effect of changes in the gradient of rail 10 ("leveling").
  • a mechanical transmission may also be used for this purpose as a second drive mechanism, so that this rotation is driven by the movement along rail 10.
  • a third motor 15 serves to rotate platform 12 relative to rail 10 about a vertical axis or shaft 18 ("swivelling").
  • Platform 12 is arranged rotationally about vertical shaft 18, for instance on a bearing (not shown), and third motor 15 drives a rotational movement about this shaft.
  • Any form of transmission can be used, for instance by providing the shaft of third motor 15 to act directly onto a rotary shaft of platform 12, or by means of a gear wheel transmission, etc.
  • a fourth motor 21 is adapted to tilt the platform, especially the seat 12a of platform 12, such that a distance 11 between the backrest 12b of platform 12 and rail 10 is reduced. Expediently, this tilting is effected about a further horizontal axis (not explicitly show in the figures. Such a tilted orientation of platform 12, in which this distance 11 is reduced, is indicated schematically in dashed lines in Figure 1 , for a position of platform 12 more towards the upper end of rail 10.
  • platform 12 in this tilted orientation can pass by an obstacle 17 above rail 10, as distance 11 for this tilted orientation is smaller than minimum distance 13 of obstacle 17 in relation to rail 11.
  • distance 11 for this tilted orientation is smaller than minimum distance 13 of obstacle 17 in relation to rail 11.
  • This movement of platform 12 in the tilted orientation is especially advantageous if obstacle 17 is a bulkhead, i.e. the edge of an opening in a ceiling through which platform 12 passes.
  • the fourth motor 21 is located above third motor 15.
  • the tilting movement is expediently effected about a horizontal axis extending laterally with respect to the platform, such that a passenger seated on the platform will experience a tilting movement only in the backward direction, i.e. in the reclining direction of backrest 12b.
  • Such an axis is schematically shown and designated 39 in figure 3 .
  • Fig. 2 shows a control system for the stairlift.
  • the control system comprises a microcontroller 20, a memory 22, a rotation sensor 24a, at least one obstacle sensing collision sensor 24b (also shown in Fig. 1 ) and first, second,third and fourth motor power supplies 26, 28, 27, 29.
  • Microcontroller 20 is coupled to memory 22, rotation sensor 24a, collision sensor 24b and first, second, third and fourth motor power supplies26, 28, 27, 29.
  • First, second, third and fourth motor power supplies 26, 28, 27, 29 respectively drive first motor 14, second motor 16, third motor 15 and fourth motor 21.
  • Memory 22 contains information representing desired angles of rotation of platform 12 about vertical shaft 18 and angles of tilting. Any form of representation can be used, such as a look-up table in which desired angle values are stored for a number of positions along the rail (for instance represented by the number of rotations of first motor 14 before this position is reached), or coefficients of a polynomial representing the desired angle values as a function of the position along the rail (number of rotations of first motor 14).
  • Microcontroller 20 is programmed to activate first motor 14 when platform 12 is to be moved along rail 10 upstairs or downstairs.
  • a sensor (not shown) records the number of rotations of first motor 14. The position of platform 12 along rail 10 follows from this information.
  • Microcontroller 20 reads this sensor information and then determines desired rotating (swivelling) and tilting angles for platform 12 on the basis of this sensor information and the information in memory 22.
  • Any suitable form of determination of the swivelling and tilting angles on the basis of sensor information and information from memory 22 can be used. This, for instance, takes place by using the sensor information as an address in memory 22 in order to thus read out the desired angle, or by interpolation between angle values for approximate sensor values for which angle values are stored in the memory, or by calculation on the basis of stored coefficients (read-out information can be determined for different positions of platform 12; in this case, it is not necessary to read out information from memory 22 for each sensor value).
  • Microcontroller 20 then controls third and fourth motors 15, 21 if necessary to make third and fourth motors 15, 21 make platform 12 rotate to the swivelling and/or tilting angle desired for the position reached along rail 10.
  • second motor 16 is also controlled, for example to keep level seat 12a of platform 12 in positions along rail 10, in which no tilting is required.
  • the information in memory 22 is chosen such that collisions are prevented between platform 12 and walls or ceiling, especially the bulkhead, of the stairwell in which the stairlift is arranged, and/or steps of the stairway. Also, if necessary, the information is chosen such that sufficient headroom is left in the stairwell during movement along rail 10. It is further possible to change the angle en route such that it allows the required rotation to the position for getting on and off at the end of the stairway.
  • Fig. 3 shows a top plan view of a stairwell, with a stairlift therein.
  • the stairwell has walls 30a-d, and steps 32.
  • Platform 12 is shown at two positions along rail 10, where it makes different angles phi relative to rail 10.
  • the stairway makes an angle of 90 degrees.
  • steps 32 narrow in the direction of the center of the bend.
  • the platform needs to be prevented from hitting the walls of the stairwell, or the steps. Whether there is a risk of this happening depends on inter alia the width of the stairwell and the height of rail 10 above the steps.
  • the risk of collisions with steps 32 in the bend is avoided by rotating the platform locally in the bend relative to 5 rail 10 about vertical shaft 18, in order to thus avoid steps 32. This makes it possible to mount rail 10 less high relative to the steps 32, so that more headroom is left.
  • this problem of reduced headroom is addressed by tilting platform 12 about horizontal axis 39 whenever expedient.
  • the rail 10 it is possible to provide the rail 10 with a constant distance from the steps over the whole length of the stairway, as potential collisions with objects 17 above the platform 12 can be addressed by tilting the platform and effecting movement of the platform in a tilted orientation when passing such objects.
  • microcontroller 20 choose the paths dynamically.
  • the stairlift can be equipped with collision sensors, on the basis of which microcontroller 20 can adjust the angle. If it has been checked in advance that there is a simple path, microcontroller 20 can thus choose that path dynamically. In addition, incidental obstacles can be avoided, or cause interruption of the movement.
  • the vertical shaft coincides with the centre of a circle which is essentially formed by an outside of a back and armrests of a chair forming the platform.
  • the back is no obstruction to rotations.
  • microcontroller 20 can be programmed to temporarily decelerate the movement along rail 10 if a rotation about vertical a shaft is necessary. This may, for instance, reduce the maximum acceleration.
  • microcontroller 20 is also programmed with safety measures in order to move platform 12 back along rail 10, or, if possible, move it at an angle free from collision, upon detection of blocking of the rotation about vertical shaft 18. For instance, in a sufficiently wide stairwell, upon blocking, it can be decided not to rotate platform 12 so as to be perpendicular to rail 10 in the straight parts (so that the transported person is not sitting with the back directly to the wall).

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Automation & Control Theory (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Types And Forms Of Lifts (AREA)
EP16156184.0A 2016-02-17 2016-02-17 Fauteuil monte-escalier Active EP3208225B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP16156184.0A EP3208225B1 (fr) 2016-02-17 2016-02-17 Fauteuil monte-escalier
ES16156184T ES2710505T3 (es) 2016-02-17 2016-02-17 Elevador de escaleras

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16156184.0A EP3208225B1 (fr) 2016-02-17 2016-02-17 Fauteuil monte-escalier

Publications (2)

Publication Number Publication Date
EP3208225A1 true EP3208225A1 (fr) 2017-08-23
EP3208225B1 EP3208225B1 (fr) 2018-11-07

Family

ID=55398223

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16156184.0A Active EP3208225B1 (fr) 2016-02-17 2016-02-17 Fauteuil monte-escalier

Country Status (2)

Country Link
EP (1) EP3208225B1 (fr)
ES (1) ES2710505T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109279481A (zh) * 2018-10-12 2019-01-29 佛山市高明区安承升降装备研究院 一种具有旋转底板的电梯
CN109335927A (zh) * 2018-10-12 2019-02-15 佛山市高明区安承升降装备研究院 一种旋转轿厢
EP3770098A1 (fr) * 2019-07-22 2021-01-27 Framo Morat GmbH & Co. KG Monte-escalier et procédé de fonctionnement d'un monte-escalier

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020111028A1 (de) 2020-04-23 2021-10-28 MW-Liftsysteme GmbH Treppenlift mit mindestens einem klappbaren und in eine platzsparende Position bewegbaren Element

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5533594A (en) 1994-06-07 1996-07-09 Ricon Corporation Chairlift with positioning carriage and swivel mechanism with safety interlock
EP1725491A2 (fr) * 2004-02-26 2006-11-29 Thyssenkrupp Accessibility B.V. Monte-escalier
EP2119660A1 (fr) * 2008-05-13 2009-11-18 Otto Ooms B.V. Monte-escalier
GB2484709A (en) * 2010-10-21 2012-04-25 Handicare Accessibility Ltd Stairlift with seat leveling, seat inclination limiting and improved access

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5533594A (en) 1994-06-07 1996-07-09 Ricon Corporation Chairlift with positioning carriage and swivel mechanism with safety interlock
EP1725491A2 (fr) * 2004-02-26 2006-11-29 Thyssenkrupp Accessibility B.V. Monte-escalier
EP2119660A1 (fr) * 2008-05-13 2009-11-18 Otto Ooms B.V. Monte-escalier
GB2484709A (en) * 2010-10-21 2012-04-25 Handicare Accessibility Ltd Stairlift with seat leveling, seat inclination limiting and improved access

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109279481A (zh) * 2018-10-12 2019-01-29 佛山市高明区安承升降装备研究院 一种具有旋转底板的电梯
CN109335927A (zh) * 2018-10-12 2019-02-15 佛山市高明区安承升降装备研究院 一种旋转轿厢
EP3770098A1 (fr) * 2019-07-22 2021-01-27 Framo Morat GmbH & Co. KG Monte-escalier et procédé de fonctionnement d'un monte-escalier

Also Published As

Publication number Publication date
ES2710505T3 (es) 2019-04-25
EP3208225B1 (fr) 2018-11-07

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