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WO2013045557A1 - Système de lignes de guidage tactile destiné aux non-voyants et aux malvoyants - Google Patents

Système de lignes de guidage tactile destiné aux non-voyants et aux malvoyants Download PDF

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Publication number
WO2013045557A1
WO2013045557A1 PCT/EP2012/069096 EP2012069096W WO2013045557A1 WO 2013045557 A1 WO2013045557 A1 WO 2013045557A1 EP 2012069096 W EP2012069096 W EP 2012069096W WO 2013045557 A1 WO2013045557 A1 WO 2013045557A1
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WO
WIPO (PCT)
Prior art keywords
tactile
periphery side
tile body
section
tactile tile
Prior art date
Application number
PCT/EP2012/069096
Other languages
English (en)
Inventor
Anne-Lise RABEN
Original Assignee
Raben Anne-Lise
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 Raben Anne-Lise filed Critical Raben Anne-Lise
Priority to EP12766958.8A priority Critical patent/EP2760409A1/fr
Publication of WO2013045557A1 publication Critical patent/WO2013045557A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H3/00—Appliances for aiding patients or disabled persons to walk about
    • A61H3/06—Walking aids for blind persons
    • A61H3/066—Installations on the floor, e.g. special surfaces, to guide blind persons

Definitions

  • a tactile guiding line system designed for blind and visually impaired persons.
  • the present invention relates to tactile guiding tiles configurable to provide guiding lines on surfaces of respective gangways, and a system and method thereof and especially to a tactile tile body arranged with a tactile contrast element providing visual and/or tactile contrasts indicating possible walking directions.
  • the tiles may be made of metal and they are usually arranged as guiding lines enabling a person with a mobility cane to follow the guiding lines by allowing the mobility cane to follow the direction defined by a series of aligned outer periphery surfaces of each respective tile in the guiding lines.
  • the end sections of the prior art tiles are rounded with a circle like shaped section.
  • the rounded corners may provide a smooth tactile response for a person through a mobility cane that is pushed along the guiding line from one tactile tile to a next tactile tile in the guiding line.
  • the distance between the tactile tiles are less than the diameter of the mobility cane. Therefore, the tactile response may be a smooth movement with some distinct transverse movements due to the round end shapes and gaps between the tactile tiles of prior art.
  • a person enters a door of a building, and then finds a starting point of a line of tactile tiles, the person is given an indication of direction. For example, it would be obvious that by walking along the tactile tiles away from the door, this would probably lead the person to an intended destination, which could be for example a ticket office if the building is a railway station, an elevator and/or stairs in an apartment building, an information desk in a hospital, or a reception desk in a hotel etc.
  • the person has acquired a ticket for a train from a ticket office at the railway station, how can the person then find the direction and destination of a specific platform the train is leaving from? The similar situation may arise for example at a hospital. Even if the person is given a correct description of direction at an information desk at the entrance of the hospital, the question remains how to guide a person from a single starting point to one of a plurality of different possible destinations along tactile guiding lines.
  • a tactile tile body comprising a tactile contrast element that are config urable to provide a tactile contrast, and/or an optional visual contrast, and/or an optional acoustical contrast that are different dependent on a direction of movement along a lengthwise periphery side of the tactile tile body.
  • a tactile tile body config urable to be part of a g uid ing line, wherein a specific shaping of the outer geometry of the tactile tiles is configurable to provide a tactile contrast, and/or an optional visual contrast, and or an optional acoustical contrast, wherein the contrast(s) are different dependent on a direction of movement along the tactile guiding line constituted by the tactile tile bodies.
  • the invention is particularly, but not exclusively, advantageous for obtaining a tactile tile body config urable to be part of a tactile g uid ing line associated with blind or visual impaired persons using a mobility cane, wherein a periphery side face in a lengthwise direction of the tactile tile body comprises a tactile contrast element configurable to provide a tactile sensation through an associated mobility cane when the associated mobility cane is being moved along the lengthwise side face of the tactile tile body, wherein the tactile sensation provided for by the tactile contrast element is dependent on which side of the tactile contrast element the mobility cane approaches the contrast element when being moved by an associated person .
  • the invention further relates to a system of a plurality of guiding lines being inter- connectable via special sections of configurable patterns of tactile tile bod ies.
  • This aspect is particularly, but not exclusively, advantageously for obtaining a tactile guiding line system comprising a plurality of g uid ing lines, wherein the plurality of guiding lines are interconnected via a circle shaped roundabout constituted by tactile tile bodies configurable to ind icating a walking d irection around the roundabout for an associated blind or visually impaired person .
  • the invention further relates to a method being adapted to provide d irectional information to users walking along guiding lines constituted by a row of tactile tile bodies along an intended walking direction .
  • This aspect of the invention is particularly, but not exclusively, advantageous in that the method accord ing to the present invention may be implemented by arranging a tactile contrast element in side faces of tactile tile bodies constituting a guiding line, wherein the tactile contrast is d ifferent dependent on which side of the tactile contrast element a person using an associated mobility cane is approaching the tactile tile element along the g uiding line .
  • Figure lc illustrates a cross section of the example of embodiment depicted in figure la.
  • Figure 2a illustrates an example of tactile contrast sensation according to the present invention.
  • Figure 2b illustrates another example of tactile contrast sensation according to the present invention.
  • Figure 3 illustrates another example of embodiment of the present inention.
  • Figure 4 illustrates an example of a guiding line according to the present invention.
  • Figure 5 illustrates another example of a guiding line system according to the present invention.
  • Figure 6 illustrates an example of application of an example of embodiment of the present invention.
  • Figure 7 illustrates parameters of an example of embodiment of the present invention.
  • Figure 8 illustrates another example of embodiment of the present invention.
  • Figure 9 illustrates an example of prior art. DETAILED DESCRIPTION OF AN EMBODIMENT
  • Blind people and visually impaired persons may rely on memorized routes and physical indications, for example guiding lines, signs with Braille coded text, trained dogs etc. to be able to move around.
  • any posting of information on signs, on pavements etc. directed towards blind and visually impaired persons may rely on providing specific designed contrasts between the common
  • a mobility cane may also represent a load on the wrist of the person using the mobility cane.
  • the mobility cane may be moved back and forth across the walking direction due to the circle shaped end sections of the tiles forming the guiding line.
  • the movement of a mobility cane is easy, since the mobility cane is a light weight construction, a monotonous movement of the wrist along kilometres of walk along a tactile guiding line day in and day out may provoke attrition and damage to the wrist. Therefore, it is also important when designing tactile tile bodies to take into account ergonomic requirements of the design.
  • a guiding line for blind or visually impaired persons may be configurable to provide a contrast to the surrounding environment, wherein the nature or an experienced sensation for a user of the guiding line related to the contrast may be used to provide an indication of an intended direction of the guiding line, or respectively an indication of an opposite direction of the intended direction .
  • this may provide an ind ication of "correct” walking d irection or a "wrong” walking direction .
  • What is deemed to be a "correct” or "wrong” walking direction is a q uestion of definition related to the use and/or location of a guiding line.
  • a guiding line from an entrance of a hospital to an information desk may be deemed to be the "correct” direction .
  • the phenomena of tactile contrast it is possible to assign a
  • the tactile contrast inducing elements in a guiding line should also preferable provide a visual contrast indicating "correct” or "wrong walking directions. Therefore, it is preferable to use distinct geometrical shapes or forms of the periphery of tactile tile bodies as contrast inducing elements.
  • the periphery of the tactile tile bodies are the physical contact interface to a mobility cane, and by using a shape or form to provide the tactile contrast with distinct geometrical shapes the visual contrast may also be present provid ing a visual contrast for visually impaired persons.
  • a tactile tile body should be config urable in a g uid ing line to provide tactile contrast indicating a direction of the g uid ing line.
  • Visual and/or acoustical contrasts are optional contrasts that can be used instead of tactile contrast or together with the tactile contrast.
  • a tactile inducing element may be arranged in an interface section between two tactile tile bodies located in a row next to each other in a guiding line.
  • Figure la illustrates an example of embodiment of the present invention.
  • Figure la illustrates a tactile tile body viewed from a top side that can be used in a guiding line.
  • the tile is longer than it is wider, and comprises a middle section 11 interposed between a first end section 10 and a second end section 12. Interconnections of all the three sections are provided for by an upper periphery side 17 and a respective lower periphery side 18 of the middle section 11.
  • These periphery sides 17, 18 constitute the periphery sides of tiles a mobility cane may be in contact with when guiding a person along a guiding line
  • the first end section 10 may be a mirrored version of the second end section 12. It is further within the scope of the present invention that a tile may be a mirrored version of the whole tile body along the lengthwise direction of the tile.
  • the length A of a tile as depicted in figure lb may be selected according to the use and location of a guiding line comprising the tiles. If there is a long straight section of the guiding line the tile bodies may be longer than when the tiles are used in bends or circle shaped sections of the guiding line. Then it is preferable to have a shorter length A of the tactile tile body.
  • Figure lc depicts the width B and height C of a tactile tile body according to the present invention.
  • the main feature is that it is advantageous to have a curved upper surface of the tactile tile body and that the height of the tile should be limited. This is due to the fact that the tactile tile bodies may be used on gangway surfaces and should not be a blunt physical obstacle for walking people.
  • the tactile body of the tactile tile is mainly provided for by the periphery surfaces along the outer surface close to the bottom of the tactile tile body.
  • An aspect of the present invention is to provide a shape of the tactile tile body that may provide directional information to a person following for example a periphery side 17 or 18 of the middle section 11.
  • the first end section 10 is shaped differently than the second end section 12.
  • FIG 2a an example with two tactile tile bodies of a section of a guiding line are arranged such that the second end section 12 of a first tactile tile body 50 is located opposite the first end section 10 of second tactile tile body 51.
  • the line 53 in figure 2a illustrates the movement of a mobility cane 52 along the two tactile tiles 50, 51.
  • the straight arrowed line indicates the moving direction of a blind person carrying the mobility cane 52.
  • the rounded corner of the second end section 12 of the first tactile tile body 50 will guide the mobility cane 52 abruptly inwards along the first end section periphery side surfaces 14 in the gap formed in between the two tactile tiles 50, 51.
  • the mobility cane will then be inside the gap but since the person using the mobility cane moves forward the mobility cane will be moved towards the sloping or inclined periphery side surface part 15 of the first end section 10 of the second tactile body 51.
  • the angle of the slope or inclination will then enable a smooth capture of the mobility cane and then gently guide the mobility cane out of the gap towards the second periphery surface 18 of the second tactile tile body 51 when the user of the mobility cane moves further onwards.
  • the movement along the tactile tiles 50, 51 in figure 2a will therefore provide a tactile sensation via the mobility cane to the user that is a smooth unhindered movement with just a small sideways movement of the mobility cane when passing the gap between the next to each other located tactile tile bodies 50, 51.
  • figure 2b it is depicted a movement in a direction from the tactile tile body 51 to the tactile tile body 50.
  • the illustration in figure 2b has been turned around to align the movement direction depicted in figure 2a with a same movement direction in figure 2b. In this manner it is easier to understand the technical effect of the configuration of the example of tactile tile bodies according to the present invention.
  • the mobility cane is first moved along the second periphery surface 18 of the second tactile tile body 51.
  • the mobility cane 51 When the mobility cane 51 is at the end of the periphery surface 18 the mobility cane will be guided smoothly and unhindered along the sloping side surface of the first end section 10 of the second tactile tile body 51. Since the user moves on further, the mobility cane now being inside the gap between the tactile tile bodies 50, 51, will be moved on further and will hit the orthogonally oriented surface part 13 of the second end section of the first tactile tile body 50. This will therefore provide a tactile sensation via the mobility cane to the user that is an abrupt stopping of the movement forward .
  • the minimum distance between the first tactile body 50 and the second tactile tile body 51 in the example of embodiment in figure 2a and fig ure 2b may be of a size being less than a diameter of the section of a mobility cane (the foot of the mobility cane) being in contact with the tactile tile bodies. This enhances the smooth tactile sensation and limits how far inside the gap between the tactile tile bodies the mobility cane can move before being stopped by the minimum d istance between the tactile tile bodies before being moved out of the gap again . This provides a better ergonomic situation for a user of a guiding line according to the present invention .
  • the d istance between the tactile tiles is greater than the d iameter of mobility cane.
  • the mobility cane when the mobility cane is g uided along the sloped side face 15 of the second tactile body 51, the mobility cane will then be captured by the other sloped side face 16 of the second end section of the first tactile tile body 50. Therefore, the mobility cane will be guided to the other side of the guiding line thereby provid ing a distinct tactile sensation to the user via a significant sideways movement of the mobility cane. A movement in the other direction will provide a same tactile sensation as described with reference to figure 2a.
  • the above described example of embodiment of the present invention represents an example of tactile contrast element that may be arranged in gaps between tactile tile bodies according to the present invention.
  • FIG. 3 illustrates another example of embodiment of the present invention.
  • a periphery side face 63 in a lengthwise direction of a tactile tile body 60 comprises an opening into a cutout 64 which constitutes an example of tactile contrast element.
  • the periphery side face 63 continues into the cutout via a rounded corner before being joined to a first sloping periphery side face section 61 of the cutout 64.
  • the first sloping periphery side face section 61 of the cutout 64 has a geometrical shape providing an uninterrupted guiding of an associated mobility cane when being moved in either direction along the first sloping periphery side face section 64.
  • a second periphery side face section 62 is arranged opposite the first sloping periphery side face section 61 of the cutout 64.
  • a geometrical shape of the second periphery side face section 62 is providing a tactile contrast sensation via an associated mobility cane when being moved along the second periphery side face section 62 from a bottom side of the cutout towards the opening of the cutout and then further along the periphery side face 63.
  • the second periphery side face section 62 of the cutout 64 may be arranged with a parallel direction to the first periphery side face section 61.
  • the cutout may then function as a "pocket" wherein the mobility cane will be “captured” by the
  • the second periphery side face section comprises a hump 65 providing a backward movement of the mobility cane when the mobility cane is being moved along the tactile tile body 60.
  • the periphery side face section 62 of the cutout 64 may be arranged orthogonally, optionally ⁇ five degrees, relative to the periphery side face 63.
  • Figure 8 illustrates another example of embodiment of the present invention.
  • a protruding part 72 On a periphery side face 71, in a lengthwise direction of a tactile tile body 70, there is arranged a protruding part 72 as an example of tactile contrast element.
  • the protruding part 72 has a shape of a right-angled triangle, wherein a first leg 74 of the right angle is in the plane of the periphery side face 71 of the tactile tile body 70 while the other leg 75 of the right ang le is orthogonal, optionally ⁇ five deg rees, and protruding out from the periphery side 71.
  • the hypotenuse 73 of the triangle shaped protruding part constitutes a sloping part providing an unhindered movement of a mobility cane following the hypotenuse.
  • the orthogonal protruding right ang le side 75 of the triang le constitutes a tactile contrast when a mobility cane is being moved towards the orthogonal protruding part. Thereby, it is possible to define a "correct" walking direction, and a "wrong" walking d irection .
  • a tactile contrast element utilizes a sensation of altering a smooth forward movement of a mobility cane, i . e. the dynamic behavior experienced by the movement itself.
  • the examples disclosed above either stops a forward movement, turns a movement forward backwards, or is providing unexpected abrupt transvers movements relative to the forward smooth movement.
  • a first section having a shaped surface providing none or slowly experienced dynamical movement changes is combined with a second section providing one or more of the above described changes of dynamical experienced movements.
  • the directional identification is provided for by arranging the second section in front of the first section when viewed in a "correct" direction .
  • the dynamical behavior of the tactile contrast is that when a mobility cane is moved across the second section towards the first section, the mobility cane passes unhindered past the contrast inducing element of the second section, and the mobility cane will then be "captured" by the surface of the first section and g uided further with slowly or soft changes of dynamical behavior when the mobility cane is moved on further away from the tactile contrast element in the "correct" defined direction .
  • each and every one of the tactile tile elements of a g uiding line comprises a tactile contrast element.
  • the d istance between tactile tile bod ies provid ing direction information may be located at distances of one meter distance, two meter distance, three meter distance and so on .
  • the tactile tile body end sections may be constituted by at least two respective periphery side surfaces 13, 14, 15, 16 having a different inclination angle relative to each other.
  • the inclination angle of the first periphery side surface part 13 of the first end section 10 may an angle in a non-limiting range from eighty-five to ninety degrees relative to the first periphery side surface of the middle section, and a second periphery side surface part 15 of the first end section 10 may have an angle in a non-limiting range from thirty-five to fifty-five degrees relative to the second periphery side surface 18 of the middle section 11.
  • any other difference of inclination angle is possible as long as they provide a difference in tactile sensation.
  • These ranges of inclination angles apply for both the first end section 10 and the second end section 12 if the second end section 12 is a mirrored version of the first end section 10.
  • each respective end sections 10, 12 may be arranged hollow, thereby providing an acoustical contrast when a mobility cane is hitting a periphery surface of the respective end sections 10, 12.
  • light sources may also be configurable on an upward faced surface of the tactile tile body providing a visual indication of direction for visually impaired persons.
  • Light Emitting Diodes may be configured as an arrow indicating a "correct" walking direction.
  • a global positioning system transmitter in the body of a tactile tile body, or locate the transmitter in the support structure (floor, ground, gangway etc.) underneath the tactile tile body.
  • the transmitter may also be in communication with a wireless transmitter that has a limited range.
  • a person may carry a receiver that receives positional information when the person is in the vicinity of the tactile tile eq uipped with the positional system .
  • the receiver may be a smart phone and the wireless
  • communication may be via the wireless connection of the phone, or via Bluetooth transmissions.
  • smartphone there might be an application transforming the positional information into locations on a map, such as known with google maps, or the identified location may be translated to indicate street name, public buildings nearby with voice communication, as known to a person skilled in the art.
  • Braille symbols on the upward faced surface of the tactile tile bodies. This can be text indicating location and/or d irection to follow.
  • FIG. 2a and fig ure 2b are illustrated in figure 2a and fig ure 2b.
  • guiding lines may be arranged on outside walls as well as inside walls and other building elements. When arranged in this manner a person may use a finger to follow the guiding line and experience the tactile and visual contrast provide for by the tactile tile bodies according to the present invention .
  • Another aspect of the present invention is to utilize the directional information in staircases. It is known in prior art to arrange tactile tile bodies at the top and respectively at the bottom of staircases, and also on the steps of a staircase (ref. fig ure 6) . When tactile tile bodies according to the present invention are arranged as "warning sections" at staircases, the directional information may be used to indicate at which side of the staircase there is a hand rail for supporting persons walking in the staircase.
  • Another aspect of the present invention is the possibility to interconnect a plurality of guiding lines in a system of guiding blind or visually impaired persons from a sing le starting point to a plurality of d ifferent destinations.
  • a first g uiding line from the entrance would g uide the person towards a ticket office.
  • a next guiding line may guide the person to an arranged roundabout as depicted in fig ure 5.
  • the person may easily identify a walking d irection around the roundabout. This may be necessary to reduce the risk of blind people walking into each other when the walk in the round about. When people walk in the same direction the risk of a collision is reduced significantly.
  • directional information may be possible to assig n to a guiding line for blind or visually impaired persons comprising steps of: arrang ing a tactile contrast element in side faces of tactile tile bodies constituting a guiding line, wherein the tactile contrast is different dependent on which side of the tactile contrast element a person using an associated mobility cane is approaching the tactile tile element along the guiding line.
  • the method comprises further to arrange tactile contrast elements in interface locations between two tactile tile bod ies located next to each other in the g uid ing line.
  • the tactile tile bodies may be manufactured out of ceramics, metal, composite materials, plastics etc. It is further an advantage to provide a flat even bottom surface of the tactile tile body thereby providing a larger area of contact between the tactile tile body and the supporting surface of a gangway for example. These examples of embodiments make it also possible to glue the tactile tile bodies to the supporting surface.

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Pain & Pain Management (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Rehabilitation Therapy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Road Signs Or Road Markings (AREA)
  • Rehabilitation Tools (AREA)

Abstract

Cette invention se rapporte à des carreaux de guidage tactile conçus pour créer des lignes de guidage sur des surfaces d'allées respectives, à un système et à un procédé associés, et en particulier à un corps de carreau tactile doté d'un élément de contraste tactile qui présente des contrastes visuels et tactiles indiquant des directions de déplacement possibles.
PCT/EP2012/069096 2011-09-29 2012-09-27 Système de lignes de guidage tactile destiné aux non-voyants et aux malvoyants WO2013045557A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12766958.8A EP2760409A1 (fr) 2011-09-29 2012-09-27 Système de lignes de guidage tactile destiné aux non-voyants et aux malvoyants

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20111323 2011-09-29
NO20111323A NO20111323A1 (no) 2011-01-09 2011-09-29 Retningselement

Publications (1)

Publication Number Publication Date
WO2013045557A1 true WO2013045557A1 (fr) 2013-04-04

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EP (1) EP2760409A1 (fr)
NO (1) NO20111323A1 (fr)
WO (1) WO2013045557A1 (fr)

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