EP3582211B1 - Lighting, in particular escape route lighting - Google Patents

Description

The invention relates to a luminaire, in particular an escape route luminaire, comprising at least one housing with a lamp insert, a transparent cover of the lamp insert, a holder, and comprising two insert elements, one in the form of a blind insert and one in the form of a disc holder, the middle housing section for the lamp insert and its cover is provided, and the housing has a chamber at each end, which are optionally provided for receiving the blind insert and the disc holder, and wherein the blind inserts are provided for closing the two front chambers, while the disc holder for closing the front chambers are provided and have a recess into which a luminous disc with a latching lug can be pushed into place.

Lights are known in the most general form in different configurations. In the present case, it is an escape route luminaire, safety luminaire or a rescue luminaire, which are required both in the commercial sector and in the private residential sector in larger residential buildings, so that the residents can be safely guided out of the building in the event of danger. The escape route luminaires therefore typically have a pictogram which clearly indicates an escape route. Because the luminaires are preferably installed in underground car parks, offices, corridors, stairwells or comparable rooms, there is also the need for the escape route luminaires to show the escape route from the viewing side, regardless of the direction. For this reason, luminous disks that are connected to a housing have proven useful, with the housing being fastened either flush with the wall or the ceiling. The housing is used for the recording a lamp insert, possibly batteries and for holding a light panel with at least one pictogram.

From the DE 10 2010 014 614 A1 For example, a disc light is known which is provided with a pictogram as an escape route light. The luminaire consists of a housing which can be fixed on the wall or ceiling and serves to accommodate a luminous disc, the control being housed within the housing. The connection of the panel light to the housing takes place with the aid of at least one, preferably two holders, which can be fixed on the front of the housing.

In this case, however, there is the risk that the laterally flanged holders are inadvertently loosened or damaged, for example during cleaning work or the transport of bulky objects, and a holder falls down together with the luminous panel.

From the EP 2 942 770 A1 an escape route luminaire is known which enables installation on the wall or ceiling side via a housing 8. After the housing has been screwed to the wall or ceiling, a frame element with a signal disk can be pressed into an existing groove in the housing using holding means, so that the signal disk is securely held.

From the U.S. Patent 6,241,369 B1 an escape route luminaire is known which also has a housing that offers the possibility of attaching a support body for the luminous disc, wherein the luminous disc can be pressed into an existing groove of the support body in a wedged manner.

From the U.S. Patent 5,526,251 an escape route luminaire is known, which is designed in two parts and has a mounting housing, which in turn can be mounted on the wall or a ceiling, with a plurality of retaining claws which are inserted into existing recesses Engaging the frame element, a connection takes place and the frame element is provided at least on one side, preferably on both sides, with a cover plate on which there is a pictogram.

The present invention is based on the task of showing an escape route luminaire which, on the basis of a stable housing, enables wall or ceiling mounting and, moreover, the use of the housing without a luminous panel.

According to the invention, to solve the problem, the housing has a chamber at each end, which are optionally provided for receiving an insert element in the form of a blind insert or a pane holder, the middle housing section being provided for the illuminant insert. Further advantageous refinements of the invention emerge from the subclaims.

In order to be able to use a stable housing for the lamp, the housing has a chamber at each end, which can either be closed with an insert element in the form of a blind insert or alternatively closed with a disc holder, which offers the possibility of receiving and locking a light disc . So that the insert elements are securely held in the housing, the end chambers are designed, which are provided exclusively for receiving the insert elements in the form of a blind insert or a disk holder. The insert elements are protected by the housing frame and there is no risk of them being accidentally knocked off or torn off the housing.

The stable housing ensures that the pane holders or blind inserts do not fall out or are damaged even in the event of unintentional impacts against the housing. This is ensured by the fact that the housing, which is generally cuboid, has an outer wall that is closed in one piece. The required insert elements in the form of the blind insert or a disk holder are pressed into the existing chambers and after insertion are enclosed by the housing and locked by means of locking elements.

If only one luminaire without escape route marking is required, the insert elements are inserted in the form of a blind insert into the existing end-face chambers, while the middle area of the housing is closed by a transparent cover. The light in question can thus emit the light directly into the surrounding space through the transparent cover. If the luminaire is intended as an escape route luminaire, a cover is also used, but the pane holders are also used instead of the blind inserts, so that a light panel can also be inserted after insertion, the insert by inserting two integrally molded webs of the light panel into an existing recess the disc holder takes place and a lock is provided via corresponding locking elements. Of course, there is the possibility here of releasing the locks of the cover as well as the insert elements and the luminous disc with the aid of a screwdriver or similar tool at a later point in time.

For the reasons mentioned above, the blind inserts are only intended to close the two end chambers and are flush with the transparent cover, while the pane holders are used to close the end chambers and a recess have, into which a luminous disc with holder can be pushed into place.

In order to prevent the blind inserts or disc holders from falling out and to achieve a secure hold with the housing, it is provided that the blind inserts and the disc holder are releasably anchored in the end-face chambers via locking elements, but are held in place, with at least one locking lug engaging in a latching step in the chambers . In addition, the pane holders have an additional locking nose which engages in a recess in the luminous pane. For this purpose, the luminous disc, which has a rectangular basic shape, is equipped with two integrally molded webs which can be inserted into the recess of the luminous disc holder. The additional locking lug of the disc holder engages in a recess of the luminous disc or the molded webs, so that the locking lug and the recess of the luminous disc fix the position and the fastening of the luminous disc in the basic housing.

So that the luminous panel can also be seen in a dark environment, there is an insertable lamp insert in the middle chamber area of the housing which accommodates the control electronics and the lamps. The lamp insert is screwed tightly inside the housing or can also be held using releasable locking elements. The control electronics and, if necessary, batteries are located on the back of the lamp insert, if they are necessary for the intended purpose, while the lamps are arranged on the front. The light from the lamps reaches the outside through the transparent cover, whereby the lamp can be used either as normal lighting or as an escape route lamp with the help of a luminous disc.

To hold the cover, it is provided in a further embodiment of the invention that the cover is provided with hook-shaped locking elements, which can be inserted into the front chambers before the insertion of the blind inserts or disk holders in such a way that the locking elements are attached to a partition between the central housing section and the end chambers rest, wherein the partition wall is provided on the chamber side with corresponding projections for attachment.

For assembly, it is provided that the transparent cover is first placed on the housing and engages with its hook-shaped locking elements in the two end-face chambers, the locking elements coming to rest directly on the partition and the projections present there being used as corresponding locking elements. After the cover has been put on, either the blind covers or the pane holders can be inserted.

If the pane holders are used, there is then the option of using the light pane, which is provided with a pictogram either on one side or on both sides. The one-sided shape is preferably used for wall mounting, while the double-sided shape is used on a hall ceiling or the like, so that the pictogram can be seen from both directions.

In order to meet the DIN standards, it is also provided that the surface size of the luminous panel is at least 120 cm ² and a maximum of 800 cm ² and has a standard recognition range in the range between 8 and 40 m.

After the transparent cover as well as the pane holder and the luminous pane have been fully fitted, a watertight, encapsulated one is created Space that is located inside the basic housing so that the luminaire is protected against the ingress of water jets in accordance with IPX4.

To illuminate the premises or the luminous panel, it is provided that the illuminant insert has at least one diffuser, an optical system or a lens that distributes the light. It is provided here that the diffuser distributes the light uniformly along the longitudinal narrow side in the luminous panel, the lighting means preferably consisting of LEDs which are at least partially equipped with a diffuser. If a diffuser is provided, it can feed light into the luminous disc, but also illuminate a narrow strip or a club-like strip so that the escape route is illuminated in the required form. If further LEDs are provided in the lamp insert, these can only be used to illuminate the surroundings if the lamp is used, for example, to illuminate the premises.

In a further embodiment of the invention it is provided that the lighting means can be dimmed taking into account the ambient brightness or are dimmed as a function of a supply voltage. When there is daylight, there is therefore the possibility of dimming the lamps to save energy and also in the event that a mains supply voltage fails and the lamps are only fed with an existing internal battery, so that in this case too the lamps are dimmed by a corresponding one to achieve a long burn time with the battery voltage.

In a further special embodiment of the invention it is provided that the housing can be fixed on the wall side with the aid of a holder in the form of an angle. The holder ensures that the luminaire is used both to illuminate a room and to illuminate an escape route and with the help of the bracket there is the possibility of wall mounting.

To connect the housing to the bracket, it is provided that the bottom of the housing has at least one groove and one locking element on the rear outer side and the holder has at least one corresponding web and one locking element, the at least one groove of the housing and the at least one web the bracket can be trapezoidal.

To ensure a long service life for the lights, it is provided that the housing and the insert elements are made of a plastic, preferably a white polycarbonate or white polymethyl methacrylate, while the cover of the luminous panel is made of a plastic, preferably a transparent polycarbonate or polymethyl methacrylate.

The present invention is characterized in that a compact, extremely stable lamp is created which can be used for both wall and ceiling mounting. For this purpose, there is a bracket in the form of an angle, which can be screwed to a wall, with the aid of locking elements a detachable connection of the housing to the angle is possible at any time. Alternatively, if it is to be attached to the ceiling, the bracket can be dispensed with and it is mounted directly on a ceiling.

The lamp according to the invention can be used to illuminate a room, a corridor or the like, but can also be used as an escape route lamp. It has proven to be useful to provide escape route lights in a longer corridor and to provide additional lights between these escape route lights that at least cover the corridor illuminate that the escape route can be safely recognized and used. The special feature of the housing is furthermore that the housing has front chambers into which insert elements can be pushed. The insert elements are held within the chambers with the help of locking elements and are in the form of a blind insert, for example if the lamp is not used as an escape route lamp and as a disc holder if the lamp is used to hold a light disc. For this purpose, there is the possibility that first the transparent cover is placed on the housing, specifically on the central area, and is held in the chambers at the end with corresponding locking elements. After this has been done, the dummy inserts are pushed into the chamber, which are also locked so that a compact light housing is present. If the luminaire is to be used as an escape route luminaire, the blind inserts can be removed and replaced with a pane holder. Such an exchange is possible at any time, so that every luminaire can be converted into an escape route luminaire. After the disc holders have been inserted, a luminous disc with its extended webs can be pushed into an existing recess, locking elements of the disc holder engaging in a recess of the integrally formed webs of the luminous disc and thus enabling secure attachment. Should it be necessary to replace a damaged light panel due to improper handling or the light source insert or any existing batteries need to be replaced, it is possible to use standard screwdrivers to loosen the respective lock and dismantle the light panel as well as the insert elements and the cover.

The invention is explained again below with reference to the figures.

Fig. 1

die erfindungsgemäße Leuchte in zwei perspektivischen Ansichten,

Fig. 2

in vier Ansichten die Leuchte gemäß Figur 1,

Fig. 3

in einer Explosionsdarstellung die Leuchte gemäß Figur 1 mit Blindeinsätzen,

Fig. 4

in einer Explosionszeichnung die Leuchte gemäß Figur 1 mit Scheibenhalter und Leuchtscheibe,

Fig. 5

in einer perspektivischen Ansicht einen Blindeinsatz für das Gehäuse,

Fig. 6

in vier Ansichten den Blindeinsatz gemäß Figur 5,

Fig. 7

in zwei perspektivischen Ansichten den Scheibenhalter,

Fig. 8

in fünf perspektivischen Ansichten den Scheibenhalter gemäß Figur 7,

Fig. 9

in einer perspektivischen und zwei Seitenansicht die transparente Abdeckung und

Fig. 10

in einer perspektivischen Ansicht und einer Seitenansicht die Leuchtscheibe für das Gehäuse gemäß Figur 1.

It shows

Fig. 1

the lamp according to the invention in two perspective views,

Fig. 2

in four views the lamp according to Figure 1 ,

Fig. 3

in an exploded view the lamp according to Figure 1 with blind bets,

Fig. 4

in an exploded view the luminaire according to Figure 1 with disc holder and luminous disc,

Fig. 5

in a perspective view a blind insert for the housing,

Fig. 6

in four views the blind insert according to Figure 5 ,

Fig. 7

the target holder in two perspective views,

Fig. 8

in five perspective views the disc holder according to FIG Figure 7 ,

Fig. 9

in a perspective and two side views the transparent cover and

Fig. 10

in a perspective view and a side view, the luminous disc for the housing according to FIG Figure 1 .

Figure 1 shows in two perspective views a light 1 which can be used both for lighting and as an escape route light. In Figure 1 the version is shown as an escape route luminaire. The lamp 1 consists of a housing 2, a transparent cover 3, two disc holders 4 and a luminous disc 5. If the luminous disc 5 is not used, blind inserts are used instead of the disc holder 4, as shown in FIG Figure 5 and 6th are inserted into the housing 2.

The housing 2 itself consists of a cuboid base body which is provided for receiving the insert elements in the form of a blind insert or the pane holder 4 and for receiving a transparent cover 3. Insertion of the luminous disc 5 takes place after the disc holder 4 has been inserted into the housing 2 and locked with it. An opening 6 on the end face makes it possible to unlock the additional elements in the form of a blind insert or a pane holder 4 and to remove them together with the luminous pane 5. Furthermore, after removing the luminous panel 5, the cover 3 can also be unlocked, in which case the unlocking within the individual end-face chambers can be released with the aid of a screwdriver.

In the perspective top view it can be seen that the housing 2 can be fastened to a wall with the aid of a holder 7 in the form of an angle. The housing 2 is normally mounted through two bores 8 within the bottom wall 9 of the housing 2. If wall mounting is provided, the bracket 7 is used, which enables it to be fixed to a wall through existing bores and the housing to snap into place with the aid of a locking lug 10 2 made possible by existing projections. To aid assembly, the rear area of the housing 2 is equipped with a dovetail-shaped groove into which a corresponding dovetail-shaped web 11 of the holder 7 engages. This connection can easily be released by inserting a screwdriver into the V-shaped webs 12.

Figure 2 shows the luminaire 1 in a total of four views. From the bottom view it can be seen that the housing 2 is completely closed by the cover 3 and the pane holders 4 are arranged at the end of the transparent cover 3. The pane holders 4 have a rectangular recess 15 which is provided for receiving the luminous pane 5. From the side view it becomes clear once again how the luminous disc 5 is received within the housing 2, the luminous disc 5 protruding into the disc holder 4. The housing 2 is held by a holder 7. From the front view, the housing 2 with the luminous disk 5 and the holder 7 and the position of the holder 7 relative to the housing 2 can be seen again. The position of the holder 7 with respect to the housing 2 is also shown from the top view.

Figure 3 shows the use of the housing 2 with a transparent cover 3 and two dummy inserts 13 in an exploded view. The housing 2 has a central housing section 16 and two chambers 17 at the front so that the locking elements 18 come to rest against the partition 19. The partition wall 19 has projections 20, while the locking elements 18 have a rectangular projection 21, which comes to lie behind the projections 20, so that the cover 3 is detachably but firmly connected to the housing. Subsequently, the dummy inserts 13 are pushed into the chambers 17 and held within the chamber 17 with the aid of a retaining claw 22 and a projection. To release the dummy inserts 13, an opening 23 is provided in order to release the retaining claw 22 with the aid of a screwdriver in order to remove the dummy inserts 13. There is then the possibility of releasing the cover 3 from the housing by lifting the locking elements 18 as well.

Figure 4 shows in an exploded view the luminaire 1 in the form of an escape route luminaire, again using the same housing 2 and also the transparent cover 3 17 can be fixed in place. The pane holders 4 have a recess 15 into which the luminous pane 5 with the pictogram 28 can be inserted. For this purpose, the luminous disc 5 is equipped on both sides with a web 29 and a locking lug 30, which can be pushed into the corresponding recess 15 of the disc holder 4, the luminous disc 5 being held securely with the aid of a second locking means. Dismantling takes place in such a way that the luminous panel 5 together with the panel holders 4 is pulled out of the housing 2 through the opening 23 after unlocking, and the transparent cover 3 can then also be removed if necessary.

Figure 5 shows, in a perspective view, a blind insert 13, as shown in FIG Figure 3 is known. The dummy insert 13 is provided for insertion into the existing chambers 17 of the housing 2 and is intended to close the opening there in the event that no luminous panel is used. The dummy insert 13 consists of a rectangular base body 35 on which a web 36 is formed in one piece in the center and which merges into a retaining claw 22. Furthermore, there are two guide webs 37 which are provided between the walls of the chamber for better guidance. The webs are in this case with their end faces 38, 39, 40 directly on the partition 19 of the housing 2 or the inside of the end face of the housing 2.

Figure 6 shows in four views again the blind insert 13 with base body 35, which is constructed with a hollow wall in order to save material. On the base body 35, the guide webs 37 are integrally formed, which with their End face 38 come to rest against the inside of the end wall of the housing 2, while the end faces 39, 40 are intended to rest against the partition 19. The middle web 36 with retaining claw 22 is also resiliently connected in one piece to the base body 35 so that the retaining claw 32 can snap into place behind a corresponding projection of the housing. After being inserted into the housing 2, the blind insert can be loosened with the aid of a screwdriver in such a way that the screwdriver presses against the holder claw from the outside and unlocking takes place so that the blind insert 13 can be removed from the chamber 17 again.

Figure 7 shows in two perspective views a disc holder 4, such as that shown in FIG Figure 1 is known. The pane holder 4 also has a rectangular base body 45 on which guide webs 46 are integrally formed. The guide webs 46 are constructed like the guide webs 37 of the blind inserts 13. A web 47 is also formed in one piece and is equipped with a retaining claw 48 at the end. The only difference to the blind insert 13 is that the base body 45 has a rectangular recess 15. In this recess 15, the luminous panel 5 can be inserted after the assembly of the panel holder 4. To lock the luminous disk 5, the disk holder 4 has a further locking element in a recess 15 of the web 47 in the form of a web 50, which is also equipped with a retaining claw 51 at the end. This retaining claw 51 engages directly in an existing locking lug 30 of the luminous disc 5, so that it is securely held by the disc holder 4 within the housing 2. The two retaining claws 48 and 51 point in opposite directions.

Figure 8 shows a total of five views of the disc holder 4 with base body 45, which is also hollow-walled in order to save material and has two guide webs 46 and a central web 47 which is equipped with a retaining claw 48 to securely hold the disc holder 4 in the Housing 2 or to anchor in the front chambers 17. In contrast to the blind insert, the base body 45 has a rectangular recess 15 into which the luminous disc 5 is inserted with its webs 29, whereby from the top view of the disc holder 4 it can be seen that a retaining claw 51 protrudes into the recess 15 and resiliently into an existing detent 30 of the luminous disc 5 can snap into place.

Figure 9 shows, in perspective and two side views, the transparent cover 3, which is designed as a hollow-walled body and has a visible surface 55 towards the outside, which is surrounded by a circumferential edge 56. The edge 56 engages in the existing central recess 15 of the housing 2 and is used to guide and seal the housing 2. The locking elements consist of a web 58 and a protruding nose 59, which snap into place immediately behind the existing partition 19 of the housing, the locking elements 57 engaging behind the nose-shaped projections and thus ensuring a firm connection between the transparent cover 3 and the housing 2.

Figure 10 shows a perspective view and a top view of a luminous disc 5, which has a flat design in the shape of a rectangle, on which webs 29 are formed on a longitudinal side, which have a hook-shaped locking lug 30 into which the retaining claw 51 of the disc holder 4 engages.

To assemble the escape route luminaire, the transparent cover 3 is first placed on the housing 2 and locked into place with the existing projections. The pane holders 4 can then be pushed into the existing chambers, with locking also taking place with the aid of the locking elements. Finally, the Luminous disc 5 can be pushed into the existing recesses with their webs 29, so that locking with the retaining claw 51 of the disc holder 4 can also take place. The housing 2 with cover 3 is completely closed and thus protected against splashing water.

For dismantling, the disk holder 4 must be unlocked using a screwdriver which is pressed into an opening 6 in the housing. In this way, the luminous panel 5 can be detached from the housing and pulled out together with the panel holder 4, so that a total of three individual parts are present. You can then unlock the cover 3 from the housing using a screwdriver so that the entire lamp can be dismantled into its individual parts.

List of reference symbols

1

lamp

2

casing

3

cover

4th

Target holder

5

Luminous disc

6th

opening

7th

bracket

8th

drilling

9

Bottom wall

10

Locking element / locking nose

11

web

12th

web

13th

Blind bets

15th

Recess

16

Housing section

17th

chamber

18th

Locking element

19th

partition wall

20th

Locking lug

21

head Start

22nd

Retaining claw

23

opening

26th

Locking lug

27

Recess

28

pictogram

29

web

30th

Locking lug

32

Retaining claw

35

Base body

36

web

37

Guide bar

38

Face

39

Face

40

Face

45

Base body

46

Guide bar

47

web

48

Retaining claw

50

web

51

Retaining claw

55

Visible surface

56

edge

57

Locking element

58

web

59

nose

61

Recess

Claims (14)

1. Luminaire (1), in particular exit route luminaire, comprising at least one housing (2) with a lamp insert, a transparent cover (3) of the lamp insert, a mounting (7), and comprising two insert elements, one in the form of a blind insert (13) and one in the form of a disk holder (4), wherein the central housing section (16) is provided for the lamp insert and its cover, and the housing (2) comprises one chamber (17) each towards the front sides which are selectively provided for receiving the blind insert and the disk holder, and wherein the blind inserts (13) are provided for closing the two front-side chambers (17), while the disk holders (4) are provided for closing the front-side chambers (17) and comprise a recess (15) into which a luminous disk (5) with a latching nose (30) can be inserted in an engaging manner.
2. Luminaire (1) according to claim 1,
   characterized in
   that the blind inserts (13) and the disk holders (4) are retained, via locking elements, in the front-side chambers (17) anchored in a releasable manner, but stationary, wherein at least one retaining claw (22) engages into a latching step of the chambers (17), and/or that the disk holders (4) comprise an additional retaining claw (51) which engages into a recess (61) of the luminous disk (5).
3. Luminaire (1) according to claim 1 or 2,
   characterized in
   that the retaining claw (22) and the recess (61) of the luminous disk (5) determine the position and the attachment of the luminous disk (5) within the housing (2).
4. Luminaire (1) according to one of claims 1, 2 or 3,
   characterized in
   that control electronics and the lamps are attached at a lamp insert insertable in the central chamber region of the housing (2).
5. Luminaire (1) according to one of claims 1 to 4,
   characterized in
   that the cover (3) is provided with hook-like locking elements (57) which are insertable into the front-side chambers (17) before the blind inserts (13) or the disk holders (4), respectively, are inserted, such that the locking elements (57) abut against a partition (19) between the central housing section (16) and the front-side chambers (17), wherein the partition (19) is provided, on the chamber side, with corresponding projections for attachment or with latching noses (20).
6. Luminaire (1) according to one of claims 1 to 5,
   characterized in
   that the luminous disk (5) is provided with a pictograph (28) on one side or on both sides.
7. Luminaire (1) according to one of claims 1 to 6,
   characterized in
   that the area size of the luminous disk (5) is at least 120 cm² and at most 800 cm², and/or that the area size of the luminous disk (5) has a recognition range according to standard within a range between 8 to 40 m.
8. Luminaire (1) according to one of claims 1 to 7,
   characterized in
   that the luminous disk (5) comprises a watertightly encapsulated space, and/or that the watertight, encapsulated space is located inside the housing (2).
9. Luminaire (1) according to one of claims 1 to 8,
   characterized in
   that the luminaire insert comprises at least one diffuser, an optical system, or a lens which accomplish the distribution of the light.
10. Luminaire (1) according to one of claims 1 to 9,
    characterized in
    that the diffuser accomplishes the light distribution uniformly along the longitudinal narrow side into the luminous disk (5), and/or that the lamps consist of LEDs which are at least partially equipped with a diffuser.
11. Luminaire (1) according to one of claims 1 to 10,
    characterized in
    that the lamps are dimmable taking into consideration the surrounding brightness, and/or that the lamps are dimmable in response to the supply voltage.
12. Luminaire (1) according to one or more of claims 1 to 11,
    characterized in
    that the housing (2) is fixable to the wall or ceiling side via a mounting (7) in the form of an angle.
13. Luminaire (1) according to one or more of claims 1 to 12,
    characterized in
    that the housing (2) comprises, on the rear side, at least one groove and one locking element (10), and the mounting (7) comprises at least one corresponding web and one locking element, and/or that the at least one groove of the housing (2) and the at least one web of the mounting (7) are designed trapezoidally.
14. Luminaire (1) according to one or more of claims 1 to 13,
    characterized in
    that the housing (2) and the insert elements are made of plastics, preferably a white polycarbonate or white polymethylmethacrylate, and/or that the cover (3) and the luminous disk (5) are made of plastics, preferably a transparent polycarbonate or polymethylmethacrylate.

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