WO2005052262A1 - A road marking device - Google Patents

A road marking device Download PDF

Info

Publication number
WO2005052262A1
WO2005052262A1 PCT/DK2004/000816 DK2004000816W WO2005052262A1 WO 2005052262 A1 WO2005052262 A1 WO 2005052262A1 DK 2004000816 W DK2004000816 W DK 2004000816W WO 2005052262 A1 WO2005052262 A1 WO 2005052262A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
fitting
marking device
light emission
tab
Prior art date
Application number
PCT/DK2004/000816
Other languages
French (fr)
Inventor
Torben Laustsen
Original Assignee
Lkf Vejmarkering A/S
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 Lkf Vejmarkering A/S filed Critical Lkf Vejmarkering A/S
Priority to EP04797477.9A priority Critical patent/EP1706541B1/en
Priority to DK04797477.9T priority patent/DK1706541T3/en
Publication of WO2005052262A1 publication Critical patent/WO2005052262A1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/50—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users
    • E01F9/576—Traffic lines
    • E01F9/582—Traffic lines illuminated
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/50—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users
    • E01F9/553—Low discrete bodies, e.g. marking blocks, studs or flexible vehicle-striking members
    • E01F9/559—Low discrete bodies, e.g. marking blocks, studs or flexible vehicle-striking members illuminated

Definitions

  • the invention relates to a marking device in the form of a light-emitting and/or reflecting fitting for mounting on a road surface.
  • reflecting marking coatings are normally used, designed such that the material can reflect the driving light emitted by the vehicle. This may take place in the form of a so-called passive marking which is completely dependent on driving light and thereby the light conditions, the direction of the vehicle in relation to the coating, etc.
  • the marking stripe is covered by water or snow, the reflecting prop- erties are reduced to a degree which is serious to the traffic safety.
  • These fittings are configured such that they are embedded in the road surface and have an external power supply via a buried cable.
  • the object of the invention is to simplify the mounting while improving the marking itself, and this is achieved according to the invention in that the fitting is configured as a tab with a thickness of max. 5 mm and with an inclined face facing toward the travelling direction through which the light emission takes place.
  • the entire fitting may be configured as a tab, and since it is very thin, it may be placed directly on the road surface without any changes of the road surface and be secured, attached to it. It may also be placed in a road stripe, where the reflecting faces on the fitting with the light emissions protrude above the surface of the stripe.
  • the light emission is thus positioned close to the road surface, it will especially be optimum relative to the road-users, without the fitting tab gen- erally interfering with the traffic - on the contrary, when driving over it, one will be made aware of a possible crossing of a stripe corresponding to the running over of point-shaped road stripes.
  • the fitting tab is configured as an outer shell in which the electrical components are embedded, a very sturdy and wear-resistant surface may be achieved, which also provides a good protection of the electrical components.
  • the tab will be capable of resisting the impacts and loads to which it will inevitably be subjected, with- out breaking.
  • the light-guiding device is constructed as an independently operating unit, it is ensured partly that the light emission op- erates very safely and partly that the mounting of the tab is facilitated very much, since no external power supply has to be established, including the burying of cables, etc.
  • the lightguides terminate in the inclined faces, the light emission will function, even though the surface and thereby the lightguide are worn in use. This contributes to a long service life and full functionality.
  • fig. 1 shows a fitting tab seen from above and embedded in a stripe on the road surface
  • fig. 2 shows a sectional view of the tab seen in the direction ll-ll in fig. 1
  • fig. 3 shows the constituent parts of a tab prior to assembly.
  • the fitting according to the invention comprises a shell consisting of an upper shell 2 which is configured to form the upper side of the fitting with inclined faces 4, which are disposed on both sides of en elevated central part 9 in the example shown.
  • the fitting may hereby be used with light emission through the faces 4 in two oppositely directed directions, as indicated in fig. 2.
  • Lenses 5 are provided in these inclined faces 4, as will be explained later.
  • the upper shell 2 cooperates with a lower shell 2a such that in the assembled state the shells 2, 2a form an inner cavity 3 in which the electrical components may be embedded.
  • the components embedded in the fitting for light emission and control are indicated in fig. 3.
  • the entire construction of the fitting has been done with a view to achieving a fitting as flat as possible. Therefore, the individual components have been selected with a view to the lowest possible height and extent, so that the components may be positioned in a "flat" order.
  • a plurality of solar cells 12 are provided for charging the battery 13, and these solar cells must not be overshadowed, of course, and they are therefore arranged openly upwards.
  • the battery 13 is arranged at the side of the solar cells 12.
  • the battery is of the generally known flat type, which is connected via flat wires and various printed circuit boards 14 to a light-emitting diode 10 arranged centrally in the fitting.
  • the device may comprise a light sensor and optionally a temperature sen- sor. These electrical components are all configured as flat flexible elements so as to enable them to yield in case of outer loads on the fitting, without being destroyed by breaking or the like.
  • a softer moulding mass 3, such as silicone or the like, is used for embedding the electrical components in the shells 2, 2a, such that the moulding mass may absorb and distribute the outer impacts to which the fitting is subjected.
  • the shells 2, 2a are preferably made of polycarbonate or another hard and impact-resistant material.
  • the shell constitutes the entire exterior of the fitting and protects the components in such a manner as to allow it to be mounted on a road surface, as indicated in fig. 2.
  • the maximum height of the finished fitting is 1 to 5 mm, which does not differ significantly from the height of known marking coatings.
  • the surface of the shell 2 is preferably fluted or rough to achieve the best possible skid resistance for the road-users.
  • the surface 8 above the solar cells 12 may be provided with one or more lenses to enhance the incident light on the solar cells 12.
  • the light emission takes place from a light-emitting diode 10, which, as indicated in fig. 2, is embedded in the moulding mass 3.
  • the light-emitting diode 10 is positioned inside the fitting itself, and, via a connector and light- guides 11 extending toward the inclined side edges 4 of the fitting, the light 6 is emitted via these lightguides 11 , as indicated in fig. 2.
  • a lens 5 may be provided in front of the lightguide ends, and, as will appear from the dashed line in fig. 2, it is expedient that the light emission takes place at an angle 7 of about 3° relative to the horizontal plane of the fitting.
  • the advantage of using lightguides 11 is partly to utilize the light from just one diode 10 and also to improve the operational safety partly by the protected arrangement of the diode and partly in that the lightguide ends can operate even though the ends are worn.
  • a light sensor may thus be used for turning the light-emitting diode on and off, just as it may regulate the light intensity/colour according to the external light conditions and needs.
  • a temperature sensor may be included and registers low temperatures involving the risk of slippery roads, thus providing the possibility of changing the colour of the diode to e.g. red and optionally again changing the light to e.g. flashing light emission.
  • All forms of optional remote control may be incorporated so as to allow signalling, e.g. by means of an external sensor, of traffic conditions which are to be signalled from one or more fittings, whereby the traffic safety may be improved.
  • the fitting according to the invention is an independent unit, it will op- erate entirely without any need of service. It is sturdy, impact-resistant, and, as mentioned, so flat that it cannot be either damaged or constitute a risk to the road-users.
  • the fitting may have all possible forms and sizes, so that it may also form part of the general traffic marking, such as signs and instructions of various types.
  • the colour of the light depends on the diode/lens, and it may therefore be designed in any desired colour scale as needed.

Abstract

A marking device is configured as a light-emitting fitting tab (1) provided with light-emitting diodes (10), so that the light emission may take place through inclined edges (4). The fitting (1) is configured as a flat element whose height, thickness, is max. 5mm. The fitting (1) is composed of hard shell parts (2, 2a) in whose internal cavity the electrical components are embedded (3). The moulding mass is soft, while the shells (2, 2a) are hard. This enables the element to absorb loads and bending impacts without destruction of the fitting. The fitting (1) may therefore be arranged directly on the road surface (9) and by means of solar cells (12) as well as batteries (13) the light emission operates independently of an external power supply. A light sensor and/or a temperature sensor may control the light emission and optionally change the colour at low temperatures.

Description

A ROAD MARKING DEVICE
The state of the art
The invention relates to a marking device in the form of a light-emitting and/or reflecting fitting for mounting on a road surface.
For the marking and striping of road surfaces, reflecting marking coatings are normally used, designed such that the material can reflect the driving light emitted by the vehicle. This may take place in the form of a so-called passive marking which is completely dependent on driving light and thereby the light conditions, the direction of the vehicle in relation to the coating, etc.
Where the marking stripe is covered by water or snow, the reflecting prop- erties are reduced to a degree which is serious to the traffic safety.
To this should be added that the marking coating is worn by being run over, so that the reflection is reduced as the reflecting properties are worn off.
To remedy this, it is known to use a so-called active marking in the form of a light-emitting fitting. Examples of this are known e.g. from WO 99/06636 and WO 03/027397, which describe light-emitting fittings having a light generator provided therein in the form of an LED chip which emits light via the lightguides across the roadway.
These fittings are configured such that they are embedded in the road surface and have an external power supply via a buried cable.
This means that a both cumbersome and expensive mounting operation has to be carried out in order for the necessary number of fittings and their connections to be established. It is moreover difficult to exchange any damaged fittings because of the embedded mounting.
The object of the invention
The object of the invention is to simplify the mounting while improving the marking itself, and this is achieved according to the invention in that the fitting is configured as a tab with a thickness of max. 5 mm and with an inclined face facing toward the travelling direction through which the light emission takes place.
This ensures that the entire fitting may be configured as a tab, and since it is very thin, it may be placed directly on the road surface without any changes of the road surface and be secured, attached to it. It may also be placed in a road stripe, where the reflecting faces on the fitting with the light emissions protrude above the surface of the stripe.
Since the light emission is thus positioned close to the road surface, it will especially be optimum relative to the road-users, without the fitting tab gen- erally interfering with the traffic - on the contrary, when driving over it, one will be made aware of a possible crossing of a stripe corresponding to the running over of point-shaped road stripes.
When, as stated in claim 2, the fitting tab is configured as an outer shell in which the electrical components are embedded, a very sturdy and wear- resistant surface may be achieved, which also provides a good protection of the electrical components.
When, as stated in claim 3, the shell is made of a hard material and flexible components and a soft moulding mass are used, the tab will be capable of resisting the impacts and loads to which it will inevitably be subjected, with- out breaking.
When, as stated in claim 4, the light-guiding device is constructed as an independently operating unit, it is ensured partly that the light emission op- erates very safely and partly that the mounting of the tab is facilitated very much, since no external power supply has to be established, including the burying of cables, etc.
When, as stated in claim 5, the lightguides terminate in the inclined faces, the light emission will function, even though the surface and thereby the lightguide are worn in use. This contributes to a long service life and full functionality.
Finally, it is expedient, as stated in claim 6, to provide lenses through which the light may be emitted, since this ensures certainty of the correct light direction in relation to the traffic.
The drawing
An embodiment of a fitting according to the invention will be described more fully below with reference to the drawing, in which fig. 1 shows a fitting tab seen from above and embedded in a stripe on the road surface, fig. 2 shows a sectional view of the tab seen in the direction ll-ll in fig. 1 , and fig. 3 shows the constituent parts of a tab prior to assembly.
Description of an exemplary embodiment The fitting according to the invention, as shown in the drawing, comprises a shell consisting of an upper shell 2 which is configured to form the upper side of the fitting with inclined faces 4, which are disposed on both sides of en elevated central part 9 in the example shown. The fitting may hereby be used with light emission through the faces 4 in two oppositely directed directions, as indicated in fig. 2.
Lenses 5 are provided in these inclined faces 4, as will be explained later.
The upper shell 2 cooperates with a lower shell 2a such that in the assembled state the shells 2, 2a form an inner cavity 3 in which the electrical components may be embedded.
The components embedded in the fitting for light emission and control are indicated in fig. 3. The entire construction of the fitting has been done with a view to achieving a fitting as flat as possible. Therefore, the individual components have been selected with a view to the lowest possible height and extent, so that the components may be positioned in a "flat" order.
A plurality of solar cells 12 are provided for charging the battery 13, and these solar cells must not be overshadowed, of course, and they are therefore arranged openly upwards.
The battery 13 is arranged at the side of the solar cells 12. The battery is of the generally known flat type, which is connected via flat wires and various printed circuit boards 14 to a light-emitting diode 10 arranged centrally in the fitting.
The device may comprise a light sensor and optionally a temperature sen- sor. These electrical components are all configured as flat flexible elements so as to enable them to yield in case of outer loads on the fitting, without being destroyed by breaking or the like.
A softer moulding mass 3, such as silicone or the like, is used for embedding the electrical components in the shells 2, 2a, such that the moulding mass may absorb and distribute the outer impacts to which the fitting is subjected.
The shells 2, 2a are preferably made of polycarbonate or another hard and impact-resistant material.
The shell constitutes the entire exterior of the fitting and protects the components in such a manner as to allow it to be mounted on a road surface, as indicated in fig. 2. The maximum height of the finished fitting is 1 to 5 mm, which does not differ significantly from the height of known marking coatings.
Thus, it will not interfere with the traffic and is positioned so suitably close to the road surface that it cannot be torn off, e.g. by snow ploughs, sweepers or the like.
The surface of the shell 2 is preferably fluted or rough to achieve the best possible skid resistance for the road-users. Optionally, the surface 8 above the solar cells 12 may be provided with one or more lenses to enhance the incident light on the solar cells 12.
The light emission takes place from a light-emitting diode 10, which, as indicated in fig. 2, is embedded in the moulding mass 3. The light-emitting diode 10 is positioned inside the fitting itself, and, via a connector and light- guides 11 extending toward the inclined side edges 4 of the fitting, the light 6 is emitted via these lightguides 11 , as indicated in fig. 2.
A lens 5 may be provided in front of the lightguide ends, and, as will appear from the dashed line in fig. 2, it is expedient that the light emission takes place at an angle 7 of about 3° relative to the horizontal plane of the fitting.
This meets the requirements with respect to light which must be visible to a driver at a distance of 30 metres.
The advantage of using lightguides 11 is partly to utilize the light from just one diode 10 and also to improve the operational safety partly by the protected arrangement of the diode and partly in that the lightguide ends can operate even though the ends are worn.
A considerable degree of software may be used for regulation and control of the fitting according to the invention.
A light sensor may thus be used for turning the light-emitting diode on and off, just as it may regulate the light intensity/colour according to the external light conditions and needs.
A temperature sensor may be included and registers low temperatures involving the risk of slippery roads, thus providing the possibility of changing the colour of the diode to e.g. red and optionally again changing the light to e.g. flashing light emission.
Furthermore, all forms of optional remote control may be incorporated so as to allow signalling, e.g. by means of an external sensor, of traffic conditions which are to be signalled from one or more fittings, whereby the traffic safety may be improved.
Since the fitting according to the invention is an independent unit, it will op- erate entirely without any need of service. It is sturdy, impact-resistant, and, as mentioned, so flat that it cannot be either damaged or constitute a risk to the road-users.
The fitting may have all possible forms and sizes, so that it may also form part of the general traffic marking, such as signs and instructions of various types.
The colour of the light depends on the diode/lens, and it may therefore be designed in any desired colour scale as needed.

Claims

PATENT CLAIMS
1. A marking device in the form of a light-emitting and/or reflecting fitting for mounting on a road surface, characterized in that the fitting is con- figured as a tab (1) with a thickness of max.5 mm and with an inclined face (4) facing toward the travelling direction through which the light emission (6) takes place.
2. A marking device according to claim 1, characterized in that the exterior of the tab (1) is formed by a shell (2, 2a) in which the light-emitting device in the form of solar cells (12), battery (13), light-emitting diode (10) and lightguides (11) is embedded (3).
3. A marking device according to claim 2, characterized in that the shell (2, 2a) is hard, while the embedded device (3) is flexible.
4. A marking device according to claims 1-3, c h a r a c t e r i z e d in that the light-emitting device in the tab (1) operates independently and is thereby independent of an external power source.
5. A marking device according to any one of claims 2-4, characterized in that the light-emitting diode (10) is arranged inside the embedded device (3), and from which lightguides (11) extend, said lightguides terminating in the inclined face (4).
6. A marking device according to any one of claims 1-5, characterize d in that one or more lenses (5) are provided in the inclined face (4) to ensure the correct angle (7), direction and intensity of the light emission.
PCT/DK2004/000816 2003-11-26 2004-11-25 A road marking device WO2005052262A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP04797477.9A EP1706541B1 (en) 2003-11-26 2004-11-25 A road marking device
DK04797477.9T DK1706541T3 (en) 2003-11-26 2004-11-25 Road marking device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA200301745 2003-11-26
DKPA200301745 2003-11-26

Publications (1)

Publication Number Publication Date
WO2005052262A1 true WO2005052262A1 (en) 2005-06-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK2004/000816 WO2005052262A1 (en) 2003-11-26 2004-11-25 A road marking device

Country Status (3)

Country Link
EP (1) EP1706541B1 (en)
DK (1) DK1706541T3 (en)
WO (1) WO2005052262A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013043061A1 (en) * 2011-09-22 2013-03-28 Solar Bright Limited Road marker or light based warning device
EP2640899A4 (en) * 2010-11-16 2015-05-06 3M Innovative Properties Co Internally illuminated pavement marker

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104006326B (en) * 2013-02-26 2019-03-15 欧司朗有限公司 Floodlight

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4925335A (en) * 1987-10-09 1990-05-15 Ludwig Eigenmann Prefabricated continuous roadmarking tape having optical and electromagnetic function
EP0422696A2 (en) * 1985-07-23 1991-04-17 Minnesota Mining And Manufacturing Company Luminous horizontal roadway marking strips, and method and devices for forming such luminous horizontal roadway markings
US5984570A (en) * 1998-03-13 1999-11-16 Parashar; Amish Self energized automatic surface marker
US20030133750A1 (en) * 2002-01-14 2003-07-17 Kwung-Chul Kim Pavement marker and method for manufacturing the same
US6673292B1 (en) * 1995-08-28 2004-01-06 Cooper Technology Services, Llc Integrally formed linear light strip with light emitting diodes

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0422696A2 (en) * 1985-07-23 1991-04-17 Minnesota Mining And Manufacturing Company Luminous horizontal roadway marking strips, and method and devices for forming such luminous horizontal roadway markings
US4925335A (en) * 1987-10-09 1990-05-15 Ludwig Eigenmann Prefabricated continuous roadmarking tape having optical and electromagnetic function
US6673292B1 (en) * 1995-08-28 2004-01-06 Cooper Technology Services, Llc Integrally formed linear light strip with light emitting diodes
US5984570A (en) * 1998-03-13 1999-11-16 Parashar; Amish Self energized automatic surface marker
US20030133750A1 (en) * 2002-01-14 2003-07-17 Kwung-Chul Kim Pavement marker and method for manufacturing the same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2640899A4 (en) * 2010-11-16 2015-05-06 3M Innovative Properties Co Internally illuminated pavement marker
US8840335B2 (en) 2011-09-11 2014-09-23 Solar Bright Limited Road marker or light based warning device
JP2014528035A (en) * 2011-09-11 2014-10-23 ソーラー ブライト リミテッドＳｏｌａｒ Ｂｒｉｇｈｔ Ｌｉｍｉｔｅｄ Road marker or light warning device
US8985893B2 (en) 2011-09-11 2015-03-24 Solar Bright Limited Road marker or light based warning device
US9697732B2 (en) 2011-09-11 2017-07-04 Solar Bright Limited Road marker or light based warning device
RU2640219C2 (en) * 2011-09-11 2017-12-27 Солар Брайт Лимитед Road sign or device of warning light alarm
WO2013043061A1 (en) * 2011-09-22 2013-03-28 Solar Bright Limited Road marker or light based warning device

Also Published As

Publication number Publication date
EP1706541B1 (en) 2014-01-08
DK1706541T3 (en) 2014-03-03
EP1706541A1 (en) 2006-10-04

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