AT510001A4 - WALKWAY LIGHTING - Google Patents

Description

Patent Attorneys HefelSiHofmann 23426/33 / ss 100615

patent attorneys

European Patent Attorneys

European Trademark Attorneys

Dl Herbert Hefel (until 2006)

Dr. Ralf Hofmann Thomas Fechner 6B06 Feldkirch, Austria Egelseestr 65a, PO Box 61 1

The invention relates to a walkway lighting with arranged in or on a handrail lights with bulbs, especially LEDs, of which with a respective distribution of illuminance, each having a maximum in the region of a main emission of the light emitted by a respective light source, a walkway illuminated is, wherein the lighting means are spaced relative to the longitudinal direction of the handrail.

Pavement lighting is used, for example, as safety and orientation lighting for walkways in tunnels such as railway tunnels. As a normal safety standard, a mechanically stable, continuous handrail is mounted on the tunnel walls in each railway tunnel. It is known to mount in this handrail sidewalk lighting, which provides for maintenance work and necessary evacuations through the tunnel for greater safety of emergency personnel and customers.

In a conventional walkway lighting a continuous light band is used in a groove formed on the underside of the handrail, which has LEDs that form the bulbs of the walkway lighting. In a further known embodiment, shorter light band sections are used, wherein in each case a distance is provided between two such light band sections, which follow one another in the longitudinal direction of the handrail. In both cases, the bulbs formed by the LEDs are arranged in relatively small distances, usually at a distance of 10mm to 150mm, along the light band In the event of a defect of a light band, there is an unlit section of the walkway, the more or less depending on the length of the light band is less long.

Ban k connect Austrian Postal Savings Bank Account No. 92.111.622, Bank Code 60000 Swift Code: OPSKATWW IBAN: AT55 6000 0000 9211 1622

Sparkasse der Stadt Feldkirch Account No. 0400-006300, bank code 20604 Swift code: SPFKAT2B IBAN: AT70 2060 4004 0000 6300 T -t-43 (0) 5522 73 137 F r 43 (0) 5522 73 359 M office @ vpat. at E www.vpat.at VAX ATU 65652215

The object of the invention is to provide an improved walkway lighting of the type mentioned. According to the invention, this is achieved by a pavement lighting with the features of claim 1.

In a pavement lighting according to the invention, at least two groups of light sources, in particular light-emitting diodes, are present. Each of these groups comprises a plurality of bulbs and is powered by its own supply unit with electrical energy. There are thus at least two supply devices or electrical supply circuits available, which are supplied by the at least two supply devices with electrical energy. Along the longitudinal extension of the handrail lamps of different groups alternate each other. If, in a respective section of the longitudinal extent of the handrail, such a section may for example have a length in the range of 20m to 50m, two groups of bulbs are present, which is preferred, bulbs of the first group and the second group thus alternately (alternately ) to each other.

In case of failure of one of the groups, the functionality of the bulbs of at least one other group remains. Thus, in the case of two groups, after the failure of one of the groups, every second one of the bulbs arranged along the handrail will shine. It can still be provided by a gapless lighting or lighting the walkway with only short gaps.

If one of the groups of light bulbs fails, it is preferable for the illuminances of at least one other group each of the two light bulbs following each other in the longitudinal direction of the handrail to preferably overlap those areas within which the illuminance of the respective light source is at most 3%, preferably has fallen to at most 5%, more preferably to at most 10% of the maximum. In the case of two groups of light sources, the areas of illuminance for which the illuminance of the respective illuminant is at most 3%, preferably at most 5%, particularly preferably at most 10%, overlap for light sources of a respective group sequential in the longitudinal direction of the handrail. of the maximum has fallen off. It can thereby be maintained even in case of failure of one of the groups a minimum illuminance along the entire walkway.

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Advantageously, seen in a horizontal view at right angles to the longitudinal extent of the handrail, the main radiation directions of the light emitted from the bulbs of at least one of the groups, preferably of all groups, emitted light with respect to the vertical, wherein conveniently angle of inclination in the range of 25 ° to 55 ° may be provided , In this case, an advantageous embodiment provides that the main emission directions are inclined in opposite directions for lamps sequential in the longitudinal direction of the handrail with respect to the vertical.

If two groups of light sources are present, the main emission directions of one group are thus inclined in one direction with respect to the vertical and the main emission directions of the other group with respect to the vertical in the other direction. In preferred embodiments of the invention, each of the lamps is arranged in a respective separate housing and a respective lamp thus has a single lamp, or there are two adjacent lamps arranged in a common housing, so that a respective lamp has two lamps.

The training with a small number of points of light creates less effort in cleaning. The assembly costs and maintenance costs can be reduced.

The lighting means of a respective group are advantageously connected in series.

Each of the groups advantageously comprises more than five bulbs.

Preferably, at least for the relative to the longitudinal extent of the handrail mean bulbs of the pavement lighting, so at least for all bulbs apart from the two edge bulbs at the two ends of the handrail, that the bulbs are arranged in pairs in or on the handrail, of a respective Pair of one of the lamps to the first and one of the lamps belonging to the second group and the distance between the lamps of each pair is less than a third, preferably less than a sixth of the distance between two longitudinally of the handrail successive pairs. In this case, the main emission directions of the two light sources of a respective pair are inclined in opposite directions relative to the vertical (seen in a horizontal view perpendicular to the longitudinal extent of the handrail), the main emission directions being

I ι ι: '4, so diverge towards the sidewalk. The two lamps of a respective pair may in this case be arranged in a respective separate housing, wherein two separate lamps are formed, or arranged to form a single lamp in a common housing.

With such a design, a simple electrical connection of the Leuchtmittei can be realized. Thus, the electrical connection of the lighting means may comprise four-pole connecting cables, which have four-pole connectors at both ends. Between the connection cables Auskoppelsteckeinheiten be used. These have first and second four-pin connectors for connection to the four-pin connectors of the two connection cables. Furthermore, the decoupling plug-in units, if each of the lamps is arranged in a separate housing, third and fourth plug, which are formed bipolar and which serve for connection to the two lamps of a respective pair. If the two light sources of a respective pair are arranged in a common housing, instead of this, a four-pole plug could also be provided which is plugged into a four-pole plug of the housing for connection to the two light sources. It can be formed in this way a modular design.

The main radiation directions can be defined as center axes of the spatial light distribution (= the "light cone").

Further advantages and details of the invention are explained below with reference to the accompanying drawings. In this show:

Figure 1 is a schematic perspective view of a portion of a walkway with a walkway lighting according to the invention.

FIG. 2 shows an oblique view of a possible embodiment of a luminaire of the pavement lighting; FIG.

Figure 3 is a horizontal view perpendicular to the longitudinal extent of the handrail.

4 shows a view of a short section of the handrail with an inserted luminaire (viewing direction A in FIG. 3);

Fig. 5 is a block diagram of walkway lighting;

Fig. 6 is a schematic representation of the wiring;

Fig. 7 is a perspective view corresponding to Figure 1 in case of failure of one of the groups of lamps.

Fig. 8 is a schematic representation of a modified embodiment.

An exemplary embodiment of a walkway lighting according to the invention will be explained below with reference to FIGS. 1 to 7. To illuminate a walkway 1 lights 3 are arranged in or on a Flandlauf 2, which runs next to the walkway 1 and along it.

The handrail 2 is fastened to a wall, for example a tunnel wall, for example by means of holders 4 spaced apart in the longitudinal direction 8 of the handrail. For attachment of the handrail 2, for example, support posts could be provided, where the handrail 2 is fixed by means of brackets. The handrail 2 with the serving to establish the Handiaufs 2 parts forms a railing.

The lights 3 each have a light source 5a, 5b, which is indicated in Fig. 1 in each case by a dot. The lighting means 5a, 5b radiate in the direction of the walkway 1, wherein the main emission directions 6a, 6b are indicated by arrows. A respective illuminant serves to illuminate the walkway 1 with a respective distribution of illuminance. This illuminance has its maximum in the region in which the main beam direction 6a, 6b passes through the plane of the sidewalk 1.

The main radiation directions 6a, 6b and the distributions of the illuminance are determined by the distribution of the light emitted by the light sources 5a, 5b, by optical elements for the light guidance of the light 3 and by the arrangement of the respective light 3.

An exemplary embodiment of a respective lamp 3 is shown in Fig. 2. The luminaire comprises a housing 7, for example made of a transparent material. Inside the housing, an LED is arranged as the lighting means 5a, 5b. The LED is held by a board 9, which further carries an optical system 10 for guiding the light emitted by the LED light. The emitted light passes through a light exit surface 11. In any case, the light exit surface 11 is transparent. The connection cable is not shown in Fig. 2 for the sake of simplicity. A strain relief 12 is used to strain relief of the connection cable. In the area of the strain relief device 12, a seal for the sealed passage of the connection cable is also provided.

6

The housing 7 further comprises elastic locking elements 13a, 13b. These are used for snap mounting in a arranged on the underside of the handrail 2 in this groove 14. The elastic locking elements are here formed by two elastic webs or wings, which can be snapped into the groove. Other types of locking latches are conceivable and possible.

The arrangement of a respective lamp 3 in the handrail 2 is shown in FIGS. 3 and 4.

The luminaires 3 with the lighting means 5a, 5b are arranged in pairs relative to the longitudinal direction 8 of the handrail 2, i. in each case, two luminaires 3 with luminous means 5a and 5b are at a small distance from each other, while the distance to the next pair of luminaires 3 with luminous means 5a, 5b is substantially greater, preferably more than 3 times as large, particularly preferably more than 6 times so big. For example, the distance a between two lamps of a respective pair can be in the range of 5 cm to 20 cm, while the distance A between the lamps of a pair spaced apart is in the range of 1-2.5 m.

In the exemplary embodiment shown, a respective pair of luminaires 3 with illuminants 5a, 5b is arranged at a respective holder 4. On both sides of the holder 4 is in each case a light 3 is arranged with a light source 5a and 5b, and directly after the holder 4 or at a distance from this.

The height of the handrail 2 above the walkway 1 having horizontal plane is in the range of 90cm +/- 20cm.

One or more holders 4 could also lie between a pair arranged in the region of a holder 4, in areas of which no pair of lamps is arranged. The pairs of bulbs could also be arranged in areas of the handrail 2 lying between successive brackets 4, e.g. each centrally between two consecutive brackets 4. It could also be provided individual lights 3, each having a pair of lighting means 5a, 5b.

The main emission directions 6a, 6b of the two light sources 5a, 5b of a respective pair are inclined in a horizontal view at right angles to the longitudinal extent of the handrail 2 (in a view corresponding to FIG. 3) in opposite directions relative to the vertical, such that the main emission directions 6a, 6b down, so diverge towards the walkway 1 out. Preferably, the amounts of the inclination angles for the two lamps 5a, 5b of a respective pair are the same. The amounts of the inclination angle are, for example, about 40 °.

The illuminance levels of the individual lamps 5a, 5b overlap more or less. Conveniently, the superimposed illuminance is at least within a predetermined portion of the width of the walkway 1 everywhere greater than 11x (this is the relevant standard), preferably greater than 3lx. According to the relevant standards, this is considered a so-called evaluation area, which extends over a certain range of the distance from the handrail 2 seen in a plan view, for example over a range of 20-80cm at a distance from the intersection of a vertical plane in which the handrail 2 is located , with the level in which the walkway 1 is located. The main emission directions 6a, 6b are in this case preferably inclined in a horizontal view parallel to the longitudinal direction of the handrail with respect to the vertical in the direction of a position in a central region of the sidewalk 1, for example at an angle! from 15 ° to 35 °.

The lighting means 5a, 5b are interconnected in a respective section of the longitudinal extent of the handrail 2, which is for example 25m, in two groups. Each of these groups is powered by its own supply unit 15, 16 (see Fig. 5) with electrical energy. Of the light sources 5a, 5b of a respective pair in this case one of a supply unit 15, the other supplied from the other supply unit 16. The light sources 5a and 5b, whose main emission directions 6a, 6b are inclined in the same direction with respect to the vertical, belong to the same group.

The lighting means 5a and 5b of a respective group are preferably connected in series, as can be seen from FIG. A respective supply device 15, 16 in this case has a constant current source. From this, a constant direct current, for example in the range of 250-1000mA supplied- The delivered voltage depends on the number of formed in the form of light-emitting diodes 5a, 5b and the voltage drop across a respective light-emitting diode. For example, this voltage drop is 3.5 to 4 volts and 8 to 15 LEDs are powered by a respective supply unit 15, 16.

For wiring four-pin connection cable 17 are provided, between which Auskoppelsteckeinheiten 18 for connection to the two adjacently arranged lights 3 (each having a light source 5a, 5b have) are arranged. These Auskoppelsteckeinheiten 18 have first and second four-pin connector 19, 20 for connection to the connectors of the two connection cable 17 (the plugs 19, 20 can be arranged as shown directly to a housing of Auskoppelsteckeinheit 18 or at ends of cables). The Auskoppelsteckeinheit 18 further includes third and fourth plugs 21,22, which are each formed in two poles (and can be arranged as shown on cables or directly to a housing of Auskoppelsteckeinheit). The third and fourth plugs 21, 22 are used for connection to plugs of the lights 3 (these plugs can be arranged as shown on outgoing from the lights 3 cables or directly to the housings 7 of the lights). Thus, one of the poles (the "lead" of the respective group) is passed through the respective light-emitting means 5a, 5b via the plugs 21, 22, while the "return line" (FIG. the respective group is bridged by the Auskoppelsteckeinheit 18 between the connecting cables 17. In the last decoupling plug-in unit, instead of a second connecting cable 17, an end plug 23 is inserted, which connects the outgoing line to the return line of the respective group.

Fig. 7 shows the situation when the lighting means 5b of one of the groups have failed (for these lighting means 5b, the main radiation directions are omitted). For the luminous means 5a of the remaining group, the areas 25 of the illuminance are indicated by dashed lines 24, within which the illuminance of the respective luminous means 5a, 5b has fallen to at most 5% of the maximum. Along the dashed lines 24, the illuminance is thus just 5% of the maximum illuminance caused by the light emitted by the associated illuminant 5a. From Fig. 7 it can be seen that these areas 25 of the successive in the longitudinal direction of the handrail 2 lamps 5a overlap each other.

Thus, in the event of failure of a lamp 5a, 5b of one of the groups of lamps, the operation of the other lamps 5a, 5b of this group is maintained, a protection circuit is provided for each of the lamps. From this, the voltage drop across a respective light source, in particular LED, limited upwards, in the event of an interruption of the current flow through the light emitting means 5a, 5b is thus from the protection circuit, a kind of "bypass". provided for the flow of current. As a protection circuit, for example, a Zener diode connected in parallel to the light source can be used, which is arranged in the reverse direction. The breakdown voltage of the Zener diode I 1 I 1

* "*: \ T i" * * "is slightly above the voltage drop on the working light source, for example, less than IVolt above.

Fig. 8 shows schematically an embodiment in which two lighting means 5a, 5b are each housed in a common housing 7. There are thus lights 3 'are present, which each have two lamps 5a, 5b and which are fixed on or in the handrail 2, for example, in the same manner as in connection with the embodiment of FIGS. 1 to 7 described. There are once again two groups of lighting means 5a, 5b which are each supplied by a separate supply unit 15, 16 for the respective group. Of the two lamps 5a, 5b arranged in the luminaire 3, one belongs to the first group and one to the second group. The main radiation directions 6a, 6b of the first group of lamps 5a and the second group of lamps 5b are inclined in different directions relative to the vertical (relative to a view perpendicular to the length of the handrail 2). The main radiation directions of the lighting means 5a, 5b of the two groups can be the same as in the first embodiment. The distributions of the illuminances can be the same or almost the same.

In this embodiment, Auskoppelsteckeinheiten 18 could be used, which in addition to the first and second four-pin connector 19, 20 only have a further vierpo-leaky plug, which is plugged into a luminaire 3 'belonging four-pole mating connector, in each case two of the poles for supplying a each light source 5a, 5b serve.

The embodiments described with at least two groups of light sources 5a, 5b whose lighting means 5a, 5b alternate in the longitudinal direction of the handrail 2 relate to a respective section of the longitudinal extent of the handrail 2, for example to a section of 25m length. In the following section of the longitudinal extent of the handrail 2, the training is repeated in the same way. Each supply unit 15, 16 is thus provided in each case for each of the groups of light sources 5a, 5b.

Although a pairwise arrangement of the lighting means 5a, 5b is preferred, it would also be possible, for example, to arrange the lighting means 5a, 5b at equal intervals in or on the handrail 2. 1

Although the orientation of the main radiating directions 6a, 6b (viewed in a view perpendicular to the longitudinal direction of the handrail 2) inclined relative to the vertical is preferred, the inclinations of the main radiating directions 6a, 6b of the lamps 5a, 5b of one of the groups or of all groups could also be omitted, in particular if all lamps 5a, 5b are arranged at equal intervals in or on the handrail 2.

It would also be conceivable and possible to provide more than two groups of light sources in a respective section of the handrail 2 whose lighting means 5a, 5b are arranged alternately on or in the handrail 2 and are supplied by their own supply unit 15, 16.

As an alternative to the serial connection of the luminous means 5a, 5b of a respective group, the luminous means 5a or 5b of a respective group could also be connected in parallel, the supply devices 15, 16 providing a DC voltage and a current limiting circuit being provided for each of the luminous means. Also mixed parallel and serial circuits are conceivable and possible.

In the figures, the walkway 1 and the handrail 2 are shown in a straight line. If curvatures are present (with reference to a plan view from above), then what has been stated above applies at least to rectilinear sections or refers to an axis extending in the longitudinal direction of the handrail 2, that is to say to the "straightened imaginary state".

If there are curvatures relative to the horizontal (ie viewed in a horizontal view at right angles to the longitudinal direction), the above applies to an axis extending in the longitudinal direction of the handrail 2, ie to the "straightened imaginary state".

A pavement lighting according to the invention can be used not only for sidewalks in tunnels but also for other sidewalks, for example on bridges.

A walkway lighting according to the invention is characterized by an increased security in case of failure of a supply unit. It can be provided a minimum number of points of light, which results in less effort in cleaning and lower installation costs and easy maintenance. Due to a modular design or a modular principle of the system can be a simple installation, a simple 1 1

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Handling and easy customization options to different situations, for example, be achieved at different light point distances.

Due to the directed light cone high efficiency can be achieved.

Due to the small number of components, an increased lifetime of the system can be achieved.

By a low cost of materials results in a low fire load. t

12

Key to the reference numbers 1 walkway 2 handrail 3, 3 'light 4 holder 5a, 5b light source 6a, 6b main emission direction 7 housing 8 longitudinal direction 9 board 10 optics 11 light exit surface 12 strain relief device 13a, 13b elastic locking element 14 groove 15 supply unit 16 supply unit 17 connection cable 18 Auskoppelsteckeinheit 19 first plug 20 second plug 21 third plug 22 fourth plug 23 end plug 24 dashed line 25 area

Claims (10)

PatentanwälteHefeISc Hofmann • • «23426/33 / ss 100615 Patent Attorneys European Patent Attorneys European Trademark Attorneys Dl Herbert Hefel (until 2006) Ralf Hofmann 1. Walkway lighting with in or on a handrail (2) arranged lights (3, 3 ') with lighting means (5a, 5b), in particular LEDs, of which with a respective distribution of Illuminance, which in each case has a maximum in the region of a main emission direction (6a, 6b) of the light emitted by a respective luminous means (5a, 5b), a sidewalk (1) can be illuminated, the luminous means (5a, 5b) being related to the longitudinal direction (FIG. 8) of the handrail (2) are spaced, characterized in that at least two each of a plurality of lighting means (5a; 5b) comprising groups of lighting means (5a, 5b) are present, wherein the groups of lighting means (5a, 5b) each of a separate supply unit (15, 16) are supplied with electrical energy and related to the longitudinal direction (8) of the handrail (2) belonging to different groups Leuchtmittei (5a, 5b) each on each other respectively. 2. walkway lighting according to claim, characterized in that in case of failure of one of the groups of lighting means (5a, 5b) regions (25) of the lighting means (5a, 5b) of the at least one other group respectively caused illuminance, within which the illuminance of the respective luminous means (5a, 5b) has fallen to at most 3%, preferably at most 5%, of the maximum of the illuminance of the respective luminous means (5a, 5b). 3. walkway lighting according to claim 1 or 2, characterized in that in respective sections of the longitudinal extent of the handrail (2), via which a plurality of lamps (3, 3 ') with lighting means (5a, 5b) in or on the handrail (2). two groups of lighting means (5a, 5b) are present, wherein in the longitudinal direction of the handrail (2) alternately bulbs (5a) of one and lighting means (5b) of the other of the two groups are provided. 4. pavement lighting according to one of claims 1 to 3, characterized, bank details Austrian Postal Savings Bank Account No. 92.111.622, BLZ 60000 Swift Code: OPSKATWW IBAN: AT55 6000 0000 9211 1622 Sparkasse the city of Feldkirch account No. 0400-006300, BLZ 20604 Swift Code: SPFKAT2B IBAN: AT70 2060 4004 0000 6300 T -r43 (0) 5522 73 137 F +43 (0) 5522 73 359 M office@vpat.at 1 www.vpat.at VAT ATU 65652215 ··· « 1 • * · I. In a horizontal view at right angles to the longitudinal extent of the handrail 2, the main radiation directions {6, 6b) of the light emitted by the light sources 5a, 5b from at least one of the groups, preferably from all groups Light are inclined relative to the vertical. 5. Pavement lighting according to claim 4, characterized in that the angles of the main emission directions (6a, 6b) with respect to the vertical for all bulbs (5a, 5b) of a respective group are the same and for at least one of the groups in the range of 25 ° to 55 ° lies 6. Pavement lighting according to claim 4 or 5, characterized in that the main emission directions (6a, 6b) for in the longitudinal direction (8) of the handrail (2) successive bulbs (5a, 5b) are inclined relative to the vertical in opposite directions. 7. sidewalk lighting according to claim 6, characterized in that at least for a part of the lighting means (5a, 5b), preferably at least for all central lighting means (5a, 5b) of the pavement lighting, is provided that the lighting means (5a, 5b) in pairs are arranged in or on the handrail (2), wherein from a respective pair of the lighting means (5a) belongs to the first and one of the lighting means (5b) to the second group and the distance between the lighting means (5a, 5b) of a respective pair less than one third, preferably less than one sixth, of the distance between the pairs, and that the main radiation directions of the two lamps (5a, 5b) of a respective pair are inclined in opposite directions with respect to the vertical, with the main radiation directions (6a, 6b) downwards diverge. 8. walkway lighting according to claim 7, characterized in that the handrail (2) by means of in the longitudinal direction of the handrail (2) spaced holders (4) is fixed and the lighting means (5a, 5b) of a respective pair in housings (7) of both sides of a respective Bracket (4) arranged lights (3) are arranged, wherein the lights (3) subsequent to the respective holder (4) or in the longitudinal direction (8) of the handrail (2) related distance therefrom, which is less than a tenth the distance to the next holder (4) is arranged. 9. walkway observer according to one of claims 1 to 8, characterized in that the lighting means (5a, 5b) of a respective group are connected in series. 10. sidewalk lighting according to one of claims 7 to 9, characterized in that for wiring Auskoppelsteckeinheiten (18) are provided, the first and second four-pin connector (19, 20) for connection to connecting cables (17) and a third four-pin plug or third and fourth two-pole plug (21,22) for connection to the two lamps (5a, 5b) have a respective pair.