EP1466804A1 - Signal lumineux ferroviaire pour manoeuvres - Google Patents

Signal lumineux ferroviaire pour manoeuvres Download PDF

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Publication number
EP1466804A1
EP1466804A1 EP04425230A EP04425230A EP1466804A1 EP 1466804 A1 EP1466804 A1 EP 1466804A1 EP 04425230 A EP04425230 A EP 04425230A EP 04425230 A EP04425230 A EP 04425230A EP 1466804 A1 EP1466804 A1 EP 1466804A1
Authority
EP
European Patent Office
Prior art keywords
light
leds
light signal
signal apparatus
white
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.)
Withdrawn
Application number
EP04425230A
Other languages
German (de)
English (en)
Inventor
Mario Cappellini
Roberto Cappellini
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.)
Elettromeccanica CM Srl
Original Assignee
Elettromeccanica CM Srl
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 Elettromeccanica CM Srl filed Critical Elettromeccanica CM Srl
Publication of EP1466804A1 publication Critical patent/EP1466804A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/12—Visible signals
    • B61L5/18—Light signals; Mechanisms associated therewith, e.g. blinders
    • B61L5/1809—Daylight signals

Definitions

  • the present invention refers to a railroad advance starting light signal, that is, a signal of a type similar to the conventional one known in the railroad signalisation technique as a call signal.
  • the traditional call signal is constituted by means of two lamps horizontally combined and usually fixed, on the same pole (or post, as it is called in technical jargon) that carries the lamps for first class protection signal therebelow.
  • the call signal is normally off or deactivated; when activated, it projects, in the direction of the incoming train, two milk-white blinking lights which authorize the train to enter the station, thereby overriding the relevant protection signal which is disposed in off-state or stop mode.
  • the light signals of this type have many drawbacks.
  • the main object of the present invention is to suppress or at least greatly reduce the above said drawbacks.
  • an apparatus 100 comprises a pair of optical groups, each of which is made up of a matrix 1 of luminous elements or sectors connected electrically to each other.
  • the light advance starting signal apparatus 100 in question comprises two matrixes of light elements disposed horizontally syde-by-side.
  • each light element or sector 1 consists of one or more light sources 10 connected in series to each other.
  • the apparatus 100 comprises a containment structure consisting of a base 2 and a lid 3 protruding frontally (and sideways with wings 33) so as to define a screen or shield.
  • the containment structure being possibly made of foamed polycarbonate.
  • the front part 5 of the structure of apparatus 100 is downwardly inclined by an angle ⁇ of about 10°, so as to avoid the reflexes of the sun light towards the train's staff.
  • the base 2 is mounted on a corresponding support 4 allowing it to be fixed to a supporting post or pole (not shown) and which provides for an inlet 6 for relevant power cables (not shown) to be connected to a terminal block 7 inside the containment structure of the apparatus 100.
  • the matrixes 1 of LEDs 10, moreover, may be supported by a heat sink 9 of finned aluminum, with consequent advantages from the thermal point of view.
  • LEDs of "Lunar White” class LEDs can be used which project white light with different trichromatic coordinates by using coated glass or dichroic filters located in front of the LEDs so as to cause the light to take up the desidered colour.
  • a light signal apparatus is characterized, as above mentioned, by a high reliability.
  • a signal apparatus comprising a matrix of LEDs arranged in sectors in parallel, each sector inluding one or more LEDs in series
  • experimental tests have shown that this arrangement allows a significant increase of the reliability and availability of each of the three optical groups (equal to each other) that form the ligth signal apparatus.
  • the particular embodiment and technology being used actually bring about a very long average life; by way of non limiting example, such length can be expected of over 20 years.
  • the maintenance signal systems result therefore economical as far as the costs and organization of the maintenance activity are concerned.
  • the traditional lamps are replaced about 4 times in a year
  • the present invention would allow a system to be in operation for over 20 years.
  • optical components like mirrors, prisms, colour filters or others, which may alter the optical path and/or the colour of the light rays produced by external sources and coming back to the observer ("ghost effect").

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
EP04425230A 2003-04-08 2004-03-31 Signal lumineux ferroviaire pour manoeuvres Withdrawn EP1466804A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITFI20030096 2003-04-08
ITFI20030096 ITFI20030096A1 (it) 2003-04-08 2003-04-08 Segnale luminoso, specialmente per uso in ambito ferroviario come segnale di avanzamento

Publications (1)

Publication Number Publication Date
EP1466804A1 true EP1466804A1 (fr) 2004-10-13

Family

ID=32866051

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04425230A Withdrawn EP1466804A1 (fr) 2003-04-08 2004-03-31 Signal lumineux ferroviaire pour manoeuvres

Country Status (2)

Country Link
EP (1) EP1466804A1 (fr)
IT (1) ITFI20030096A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD118334A1 (fr) * 1975-03-17 1976-02-20
WO1995012512A1 (fr) * 1993-11-05 1995-05-11 Siemens Integra Verkehrstechnik Ag Circuit pour l'emission de signaux optiques
US5663719A (en) * 1993-04-29 1997-09-02 Electro-Tech's LED traffic signal light with automatic low-line voltage compensating circuit
DE19824562A1 (de) * 1997-06-06 1998-12-10 Tiefenbach Gmbh Weichenlagemelder
GB2329011A (en) * 1997-09-04 1999-03-10 Howells Railway Products Limit Light comprising a plurality of LEDs
GB2356694A (en) * 1999-11-26 2001-05-30 Dorman Traffic Products Ltd Signal apparatus comprising individual light units each capable of emitting more than one colour of light
EP1371540A2 (fr) * 2002-06-12 2003-12-17 TECNOLOGIE MECCANICHE s.r.l. Dispositif de signalisation à diodes électroluminescents, particulièrement pour chemins de fer

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD118334A1 (fr) * 1975-03-17 1976-02-20
US5663719A (en) * 1993-04-29 1997-09-02 Electro-Tech's LED traffic signal light with automatic low-line voltage compensating circuit
WO1995012512A1 (fr) * 1993-11-05 1995-05-11 Siemens Integra Verkehrstechnik Ag Circuit pour l'emission de signaux optiques
DE19824562A1 (de) * 1997-06-06 1998-12-10 Tiefenbach Gmbh Weichenlagemelder
GB2329011A (en) * 1997-09-04 1999-03-10 Howells Railway Products Limit Light comprising a plurality of LEDs
GB2356694A (en) * 1999-11-26 2001-05-30 Dorman Traffic Products Ltd Signal apparatus comprising individual light units each capable of emitting more than one colour of light
EP1371540A2 (fr) * 2002-06-12 2003-12-17 TECNOLOGIE MECCANICHE s.r.l. Dispositif de signalisation à diodes électroluminescents, particulièrement pour chemins de fer

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
DANIEL WURMSER: "Les Signalisations Européennes - L'Italie", CHEMINS DE FER, vol. 1997, no. 04-05, 1997, PARIS, pages 18 - 20, XP002288638 *
MICHAEL ZABEL, JÖRG LIEBSCHER: "LED- Eine neue Generation von Lichtquellen für Eisenbahnsignale", SIGNAL + DRAHT., vol. 2000, no. 9, September 2000 (2000-09-01), DETELZLAFF VERLAG GMBH. DARMSTADT., pages 31 - 33, XP009033674 *
THOMAS DIENER, RÜDIGER MESTERHEIDE: "LED-Signalgeber - das Zukunftssignal", SIGNAL + DRAHT., vol. 2003, no. 06, June 2003 (2003-06-01), DETELZLAFF VERLAG GMBH. DARMSTADT., pages 20 - 22, XP001182300 *

Also Published As

Publication number Publication date
ITFI20030096A1 (it) 2004-10-09

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