EP2394094B1 - Surface-mounted or wall light fixture - Google Patents

Description

The invention relates to a surface or wall lamp referred to in the preamble of claim 1. Art. A lamp of this kind is in the US 2004/0037068 described.

The invention is based on the object for the US2004 / 0037068 well - known wall or ceiling lamp to create a surface mounted luminaire, with which an optimal workplace and room lighting is possible and on the one hand easy to assemble and on the other to a high degree service - friendly.

To solve the lighting problem specified in claim 1 mounted luminaire is proposed.

The known luminaire consists essentially of an elongated housing of approximately triangular cross-section. Inside the housing, a lamp is arranged, the light is emitted with the help of parallel to the lamp extending reflectors and angularly arranged mutually apertures on the workplace directly or indirectly in the direction of the ceiling.

With claim 2, a reflector design is proposed which on the one hand favors the explained light guide and on the other hand to manufacture and assemble in an economical manner.

The features of the invention are explained in detail with reference to a preferred embodiment, which is illustrated in the drawings.

Fig. 1

perspektivische Darstellung einer erfindungsgemäßen Leuchte, bei welcher die obere Blende geöffnet ist,

Fig. 2

Querschnitt der an einem Versorgungskanal montierten Leuchte mit schematisch angedeutetem Strahlengang,

Fig. 3

perspektivische und vergrößerte Darstellung eines der beiden Seitenteile der in Fig. 1 dargestellten Leuchte,

Fig. 3a

vergrößertes Detail III des in Fig. 3 dargestellten Seitenteiles,

Fig. 4

Querschnitt der Leuchte gemäß Fig. 1 nahe des Seitenteils 10 bei geschlossenen Blenden,

Fig. 4a

Querschnitt gemäß Fig. 4 bei teilweise geöffneten Blenden,

Fig. 5

Querschnitt der an einem Versorgungskanal angeschraubten Leuchte,

Fig. 5a

vergrößerte perspektivische Detaildarstellung eines in der Rückwand vorgesehenen schlüssellochförmigen Durchbruchs mit der Befestigung dienendem Gewindestift und Mutter,

Fig. 6

perspektivische Teildarstellungen zweier in Reihe angeordneter, miteinander verbundener Leuchtenelemente mit aufgeklappten oberen Blenden,

Fig. 6a

perspektivische größere Darstellung eines der mechanischen Verbindung der Leuchtenelemente dienenden Arretierbolzens und

Fig. 7

Querschnitt der Leuchte gemäß Fig. 4 mit ganz aufgeklappter oberer Blende.

In the drawings show

Fig. 1

perspective view of a lamp according to the invention, in which the upper panel is open,

Fig. 2

Cross section of the luminaire mounted on a supply channel with schematically indicated beam path,

Fig. 3

perspective and enlarged view of one of the two side parts of the Fig. 1 illustrated luminaire,

Fig. 3a

enlarged detail III of the in Fig. 3 shown side part,

Fig. 4

Cross section of the luminaire according to Fig. 1 near the side part 10 with closed panels,

Fig. 4a

Cross section according to Fig. 4 with partially open panels,

Fig. 5

Cross section of the lamp screwed to a supply duct,

Fig. 5a

enlarged perspective detailed representation of a provided in the rear wall keyhole-shaped opening with the attachment serving threaded pin and nut,

Fig. 6

partial perspective views of two arranged in series, interconnected lamp elements with opened upper panels,

Fig. 6a

perspective larger view of the mechanical connection of the lamp elements serving locking bolt and

Fig. 7

Cross section of the luminaire according to Fig. 4 with completely opened upper panel.

The overall structure of the luminaire 1 according to the invention is shown in perspective view Fig. 1 to recognize.

The luminaire housing consists essentially of a rear wall 30, to which perpendicular to this standing with the aid of countersunk screws 16 side parts 10 and 20 are screwed, which at the front over a profiled rail 40 with each other are connected. This is also connected with countersunk screws 16 with the side parts 10 and 20.

The recording of the countersunk screws 16 serving sink holes 11 are, as above all Fig. 3a can recognize, provided with so-called Kratznocken 12, which ablate when adhering the countersunk screw adhering to this varnish and thus ensure a good electrical connection between the side members 10, the countersunk screws 16 and connected to these rear wall 30 and the front rail 40.

Within the housing is located as a fluorescent lamp 2, which is inserted in mounted on the side parts 10 and 20 lamp sockets 3.

Between the rear wall 30 and fluorescent lamp 2 reflectors are arranged, of which the reflector surfaces 61a and 62c can be seen in the drawing.

Up and down, the lamp is covered by transparent panels, of which in Fig. 1 only the upwardly opened aperture 50 is shown.

For electrical connection of the lamp connecting cable 91 are provided within the lamp housing between the rear wall 30 and reflector 61a, which are located at the ends plug 92 and sockets 93 can be seen, which passed through provided in the side walls 10 and 20 through openings 18 and 18 ' can be. Furthermore, 10 and 20 associated locking pins 15 and latching openings 17 are provided in the side parts, which, as explained below, serve the alignment and locking of the arranged in a row lamp elements.

To attach the light 1 to an in Fig. 1 not shown back wall keyhole-shaped apertures 31 are provided in series next to each other.

The most important measures for the design of the lamp according to the invention relate to the light distribution and light guidance, as the latter with the cross section according to Fig. 2 are illustrated, in which the light beams generated by the lamp 2 for generating the indirect light A, for generating the direct light B and the side light C are indicated schematically.

The symbolized here light guide is made possible by the special design of the rear reflector with the reflector surfaces 61a and 61b and the front reflector with the reflector surfaces 62a, 62b and 62c and the aperture 50 and 70th

The reflector surfaces 61a and 62a delimit a lower chamber 63 opening downwards in a funnel shape, the reflector surfaces 61b, 62b and 62c delimiting an upper chamber 64 which opens upwards in a funnel-shaped manner.

The lower chamber 63 is covered by a lower aperture 70 with a groove-like structure. The reflector surfaces 61a and 62a, together with the grooved lower panel 70, cause the light generated by the lamp 2 to illuminate the workstation to be deflected mainly vertically downwards in the direction B, while laterally exiting light in the direction C is largely suppressed, resulting in an extremely good glare-free leads.

The upper chamber 64 is covered by a frosted aperture 50. The light emitted upward from the lamp 20 becomes reflected by the reflector surfaces 61b, 62b and 62c and diffused by means of the matted aperture 50 to a greater extent than with the lower aperture 70, whereby an emerging in the direction A, reflected from the ceiling indirect light is generated.

For structural reasons, the reflector surfaces 61a and 61b and the reflector surfaces 62a, 62b and 62c are made in one piece.

No less important for manufacture, assembly and maintenance are the structural measures proposed with the invention, which are explained in more detail with reference to the further figures.

Important for assembly and maintenance is the design and arrangement of the upper panel 50 and the lower panel 70, which are arranged between the rear wall 30 and the front rail 40, which are suitably made as an extruded profile.

The upper panel 50 is pivotally mounted with a located at the rear edge 51, bent down lip 51a in a provided on the upper edge of the rear wall groove 35. Thus, the upper panel 50, as with Fig. 4a is shown, are swung upwards. A likewise at the rear edge of the upper panel 50 parallel to the lip 51 a extending front lip 51 b, which abuts the groove 35 delimiting the front wall portion 35 a of the rear wall 30, prevents the upper panel 50 is released during folding. Also allows the upper panel 50 due to this special shape without tools easy to assemble or disassemble. Expediently, the rear wall 30 runs upwards into an extension 35c which forms a stop for the panel 50, the function of which mainly consists of Fig. 7 is apparent.

This design allows the bezel 50 to be locked in the folded up position so that the service technician has both hands free for lamp replacement, repair or cleaning.

At its front end, the closed upper panel 50 engages with a downwardly directed elastically resilient lip 52 for locking in a groove 42 of the rail 40 a. The upper panel 50 and the rail 40 are dimensioned so that when the shutter 50 is closed, its surface is flush with the surface of the rail 40, so that there is only a narrow gap between the adjacent edges of the panel 50 and rail 40. This accidental opening of the aperture is largely prevented, as to open a tool, for. As an inserted into the gap screwdriver is required.

While for service purposes, eg. B. to replace a lamp 2, it is sufficient to open the upper panel 50, the lower panel 70 remain firmly mounted. However, to enable economical manufacturing, rear wall 30, rail 40 and side members 10 and 20 are designed to allow easy assembly and disassembly.

Thus, the diaphragm 70 on both sides against the diaphragm thickness tapered edges 71, which is at one end in a groove 32 of the profiled rear wall 30 and the other end in a groove 41 of the profiled rail 40 releasably inserted. The distance between the mutually facing edges 32 a of the rear wall 30 and 41a of the rail 40 is less than the width of the inserted aperture 70, the distance of the bottoms 41b of the groove 41 and 32b of the groove 32, however, greater than the width of the lower aperture 70, whereby on the one hand a slight insertion and holding the aperture 70 secured is. In order to fix the diaphragm 70 in its position, engages in the space between groove bottom 32b and the edge 71 of the diaphragm 70, a fixing pin 13, which, as above all Fig. 3 shows, is provided on the side part 10. The edges 71 and 72 of the lower panel 70 and the aperture are sized so that when inserted aperture 70 results in a smooth transition.

In particular, when using the lamp as a lighting element in a light strip whose simple and flush mounting is necessary. For this purpose, a number of keyhole-shaped openings 31 are provided in the rear wall 30 of the lamp 1, which already in connection with Fig. 1 are mentioned. Their special training shows the perspective view according to Fig. 5a , The lamp 1 is placed during assembly on the supply channel 80 located threaded pins 81 which pass through the keyhole-shaped openings 31. To fix the lamp 1, the screwed onto the grub screws 81 nuts, preferably locking nuts 33, are attracted. The opening 31 provided on the slot 31a allows alignment of the lamp 1 in the vertical direction.

For further fixation of the position and mounting of the lamp, an upwardly cranked tab 82 is provided at the lower end of the supply channel 80, which engages in a receiving groove 36 of the rear wall 30. For a secure attachment of the lamp is guaranteed. Once the lamp 1 is suspended from the grub screws 81 and the locking teeth nuts 33 are screwed, the lamp is fixed. The tab 82 prevents that the light can be pushed upwards. Even if the tightening of the ratchet nut 33 is omitted, a secure attachment is ensured.

When using the lamp elements 1, 1 'in a light strip, as with Fig. 6 illustrated, it is important that they are aligned so that they are aligned.

To ensure or facilitate this, in each case in a side wall 10 ', a spring-loaded locking pin 15' is provided, which in an associated with this, z. Tie FIGS. 1 and 3 recognizable, latching opening 17 engages. When disassembling this locking pin 15 'is to be solved.

To remove a lighting element 1 or 1 'from the light band, not only the fastening and locking elements 81 and 15 must be solved, but also the electrical connections of the cables 91, 91' are separated from each other. For this reason, the cables 91, 91 'at their mutually associated ends with plugs 92' and sockets 93 equipped, which can be easily connected to each other or separated from each other.

The spaces between the rear walls 30, 30 'and the reflector surfaces 61a and 61a' are dimensioned such that, after disconnecting the connection cables 91 and 91 ', these together with their sockets 93 and the plugs 91' are easily stowed behind the reflectors 61a and 61a ' can.

LIST OF REFERENCE NUMBERS

1

lamp

1'

lamp

2

Fluorescent Lamp

3

lamp base

10

Side section on the left

10 '

Side section on the left

11

sink hole

12

scratch cams

13

locating pin

15

locking pin

16

countersunk

17

latching opening

18

Through opening

18 '

Through opening

20

Side panel right

30

rear wall

30 '

rear wall

31

keyhole shaped breakthrough

31a

Long hole

32

Groove for lower panel

32a

edge

32b

ground

33

Locking nut

35

Groove for upper panel

35a

front wall part

35b

rear wall part

35c

attack

36

receiving groove

40

rail

41

Groove for lower panel

41a

edge

41b

ground

42

groove

50

upper panel

51

rear edge of the upper panel

51a

back lip

51b

front lip

52

front lip of the upper panel

61a

Reflector subarea

61a '

Reflector subarea

62a

Reflector subarea

62b

Reflector subarea

62c

Reflector subarea

63

lower chamber

64

upper chamber

70

lower panel

71

rear edge of the lower panel

72

front edge of the lower panel

80

supply channel

81

Set screw

82

flap

91

electric wire

92

plug

93

receptacle

A

indirect light

B

direct light

C

sidelight

Claims (2)

1. Surface mounted or wall light (1) essentially consisting of an elongated casing with a rear panel (30) for mounting purposes, such that the casing has a roughly triangular shaped cross section; it further consists of a lamp (2) fitted inside the casing, preferably fluorescent, with shades (50, 70) surrounding the lamp and extending parallel to it, as well as being set at an angle to one another; there are also reflectors with reflector surfaces (61a, 61b, 62a, 62b, 62c) positioned at angles to one another for the emission of direct light (B) and indirect light (A), such that the upper shade (50) is frosted for the indirect light (A) and scatters the indirect light (A) diffusely; a first one piece reflector (61a, 61b) with a roughly parabolically curved reflector surface (61b) reflecting the indirect light (A) in the direction of the lamp, and a flat reflecting surface (61a) reflecting the direct light (B), is positioned near the rear panel (30) and characterised by the fact that this first reflector (61a, 61b) is positioned opposite a second one piece reflector (62a, 62b, 62c) with flat reflector surfaces (62b, 62c) reflecting the indirect light (A) and a flat reflector surface (62a) reflecting the direct light (B), such that the reflector surfaces (61a, 62a) for production of the direct light (B) and the reflector surfaces (61b, 62b, 62c) for production of the indirect light (A) in each case border upward or downward opening funnel shaped chambers (63,64), and that the lower shade (70) for the direct light (B) has fluting, by means of which the proportion of light emitting downwards is amplified in comparison with the light emitting laterally (C).
2. Light according to Claim 1, characterised by the fact that the reflector surface of the second reflector, which is opposite the parabolically curved surface of the first reflector (61b), consists of two subsurfaces (62b, 62c) positioned at an angle to one another, such that the outer subsurface (62c) is more steeply inclined to the vertical than the inner subsurface (62b).

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