EP0947766A2 - Lighting fixture for humid environments - Google Patents

Abstract

The light has a housing (1) and a trough (2) which is placed with its edge on a seal (5) on the housing to form a sealed chamber which can accommodate one or more lamps (3). One or more holding elements (4) are attached to the housing to hold the trough fixed to the housing but removable. At least one holding element has one or more attachment elements (21) with one or more hooks for engaging corresp. openings (30) in the housing so that the attachment element(s) are clamped to the housing by elastic deformation; this element has a closure hook section which engages in a trough recess to hold it on the housing, whereby the element is elastically deformable at least in the connecting region between an attachment element and the closure hook section.

Description

The invention relates to a moisture-proof lamp according to the preamble of the claim 1.

In such damp room lights, the area in which a lamp must be arranged is sealed against moisture on the one hand and Replace the lamp and be easily accessible for assembly. The holding element, which holds the tub on the housing must therefore the tub with a press sufficient pressure against the seal to create an effective seal to reach.

Furthermore, such a holding element should be especially when plastic parts can be used, which have a higher susceptibility to breakage as easily replaceable be.

Damp room lights with a polycarbonate housing are known, in which molded on the housing overlap the tub rim and thereby the Secure the tub. With such lights, the tub is fastened in that it is pressed from below against the hook, with sufficient pressure then snap over the tub rim. However, this locking technique has the Disadvantage that the hook often does not have the required contact pressure on the tub can guarantee on the seal or due to the load when pressing or break the pan slightly. They also have the disadvantage that they can not usually be easily solved when the tub, for example Replacing the lamp to be removed. In addition, there are such Molded hooks can only be realized with polycarbonate materials that for use in rooms with aggressive media e.g. in electroplating rooms, but also in swimming pools, do not have the required durability.

In practice, knee lever locks were therefore predominantly used as holding elements used, where a hook is hooked into the tub and by folding a locking buckle is pulled up so that the tub firmly against the Seal is pressed. Such toggle locks consist of several Share and are therefore expensive. It’s also often difficult such toggle locks releasably attached to the housing in a manner that the closure does not fall down when the tub is removed and get lost.

With most damp room lights there is also the problem that after loosening of the holding element, the tub is no longer secured so that, for example when a lamp is changed, either a second person is required Hold the tub during the replacement, or the tub in the meantime must be filed. The solutions previously proposed for this are complex and also involve the use of toggle locks.

It is the object of the invention to provide a wet room luminaire according to the preamble of claim 1 available, in which the holding element simple and is therefore inexpensive, but on the other hand has sufficient contact pressure ensures the tub against the seal and that during assembly and maintenance is easy to use.

According to the invention, this object is achieved by a moisture-proof luminaire a housing and a tub, which with its edge on a seal is attached to the housing so that a tightly closed space is formed is in which one or more lamps are accommodated, on which Housing one or more holding elements are attached to the tub hold tightly but releasably on the housing, which is characterized in that at least one holding element, which is preferably formed in one piece or several fasteners with one or more hooks for engagement has in corresponding recesses of the housing, such that the or Fasteners clamped against the housing by elastic deformation be, and that this holding element has a locking hook portion, the engages in a recess of the tub to hold it on the housing, wherein the holding element at least in a connection area between one Fastening element and the hook portion at least partially elastic is deformable.

Surprisingly, it has been found in connection with the invention that that contrary to the original assumptions, a one-piece bracket, even then, if this is essentially designed as a wire construction, sufficient to to ensure a sufficient contact pressure of the trough on the seal, without, as with the toggle locks used according to the prior art, a tensioning device must be available. According to the invention easy installation of the tub by pressing against the attached to the housing Hook possible. Different from plastic housings with molded parts Do not hook the load that occurs when pressing or loosening the tub from the hook portion alone, but rather essentially from the section between the fastener or fasteners and the hook section there is a much lower risk of breakage. Since the Retaining elements are releasably attached to the housing by bracing it is also quick and easy in the event of breakage or fatigue be replaced.

According to a special embodiment it can be provided that at least a holding element is designed as a one-piece bracket, which on the tub floor opposite side by at least one in a recess of the housing clamping element clamped against at least two walls of the recess is releasably attached to the housing and has a locking hook section, which engages in a recess of the trough to close it to the housing hold, the bracket in the area between the clamped clamping element and the holding section is at least partially elastic.

In this embodiment, the fastener is essentially formed by said clamping element, usually a hook, the pure non-positively, namely by bracing against the walls of the recess or Recess, for example, a groove, but also the area between one Projection and the housing wall can be held on the housing.

According to a special embodiment of the invention, provision can also be made be that at least one fastener is designed as a retaining clip is, which is provided at both ends with one or more hooks, each on a projection of the housing z. B. the edge of a recess or attack the edge of the case so that the retaining clip between the two Projections is clamped.

In this embodiment, essentially a clip or clip placed between two recesses of the housing, which is the holding element holds on the housing in the manner of a snap connection.

According to a preferred embodiment it can be provided that at least two retaining brackets as mentioned above by at least one cross strut are connected via at least one, preferably two parallel elastic Bracket is connected to the hook portion.

The invention can be used to facilitate the attachment and removal of the tub in the area of the locking hook section, a cross strut for engagement by a Have users.

This embodiment allows a particularly simple handling of the Moisture-proof luminaire during maintenance and, in particular, tool-free loosening the tub.

Furthermore, can be provided in a preferred embodiment of the invention be that in the area of a holding element on the tub at least one to the tub floor projecting hook is provided, the cross strut of Guide element and the hook are designed so that after loosening the Tub the hook can be hooked into the cross strut. This makes it possible a user to hang the tub on the housing after loosening, so that there is no need to put them in a suitable place or by to have a second user on hold.

Advantageously, there are several, preferably two, on one side of the housing such hooks corresponding to holding elements are present, albeit with an appropriate arrangement and a short length of the lamp also one only a combination of a holding element and a hook can suffice. According to Such combinations of holding elements are a preferred embodiment and hooks provided on both long sides of the lamp, so that A user places the tub on one side or the other of the case as needed can hang. It can also be provided that the cross struts are arranged in this way are that there is sufficient space between the top the tub and housing for work like replacing the lamp, about 10 to 20 cm, remains when the tub with the hooks on both sides in the Cross struts is hooked.

According to a preferred embodiment of the invention, that to the hook portion in the direction of the tub bottom then one or more guide elements are attached, which of the Stand out of the tub and towards the bottom of the tub. This outwardly protruding guide elements of the holding element do not facilitate only pressing the tub, but also loosening the hooks for removal the tub, since it can be easily attacked by a user.

It can be provided that the guide element with a cross strut Attack is provided by a user and preferably two essentially has parallel legs that on the tub floor facing End connected by the cross strut.

Furthermore, it can be provided that the holding element has two legs, each provided with a clamping hook on the end facing away from the tub are, extend from this to a hook section and in the area of the hook section are interconnected. The clamp hooks are each clamped in a recess of the housing, so that the holding element essentially is immovably attached to the housing. According to a preferred embodiment the clamp hook consists of a V-shaped elastic clip that each with one leg against one of two opposite one another Walls of the recess presses. This enables the tool to be attached without tools Retaining bracket on the housing, which is simpler from the standpoint Handling is desirable.

The holding element preferably consists, at least in its elastically resilient Areas, made of metal, particularly preferred because of the corrosion resistance, made of V2A steel. In connection with the attachment provided according to the invention of the holding element on the housing by means of clamping elements or a holding clip In a recess in the housing, such a holding element is able to to ensure a significantly higher contact pressure of the trough on the seal, so that the number of holding elements can be kept relatively low, and can still be quickly and easily mounted or replaced on the housing become. In a special embodiment, the retaining bracket consists essentially made of metal wire, especially in the area of the legs, which the Connect the clamping elements to the hook section. Those areas that as Handle bar for grasping by a user or as a hook element, which in a Recess of the tub engages, are formed, e.g. through plastic be clad and possibly deviate from a wire shape for reinforcement be trained.

According to a preferred embodiment of the invention, that the width of the edge of the tub adjacent to the seal is substantially corresponds to the wall thickness of the tub. While according to the state of the art wide edge, which was clearly larger than the wall thickness of the tub, to the concern was provided on the seal is a relatively narrow according to the invention Edge provided. This reduces the required contact pressure. In particular, be provided that the width of the edge abutting the seal less than half the width of the seal, preferably less than one Quarter. In a specific embodiment, the seal can, for example a width of 5 mm and the edge of the Trough have a width of 0.8 to 1 mm.

The invention can be applied in particular to such damp room lights, where the housing consists of a thermosetting plastic and therefore for rooms with aggressive media (swimming pools, electroplating rooms etc.) are suitable.

Fig. 1

zeigt einen Querschnitt senkrecht zur Längsachse eines Ausführungsbeispiels einer erfindungsgemäßen Feuchtraumleuchte,

Fig. 2

zeigt eine teilweise Seitenansicht des Gehäuses der Feuchtraumleuchte gemäß Fig. 1,

Fig. 3

zeigt eine Draufsicht auf den Haltebügel gemäß einem ersten Ausführungsbeispiel,

Fig. 4

zeigt eine Seitenansicht des Haltebügels gemäß Fig. 3,

Fig. 5

zeigt eine Draufsicht auf eine zweite Ausführungsform eines erfindungsgemäßen Haltebügels,

Fig. 6

zeigt eine Schnittansicht des Haltbügels gemäß Fig. 5 entlang der Linie A-A,

Fig. 7

zeigt eine Schnittansicht des Haltebügels gemäß Fig. 5 entlang der Linie B-B,

Fig. 8

zeigt eine Seitenansicht des Haltebügels gemäß Fig. 5.

Further features and advantages result from the following description of an embodiment of the invention with reference to the accompanying drawings.

Fig. 1

shows a cross section perpendicular to the longitudinal axis of an embodiment of a moisture-proof luminaire according to the invention,

Fig. 2

shows a partial side view of the housing of the moisture-proof luminaire according to FIG. 1,

Fig. 3

shows a plan view of the bracket according to a first embodiment,

Fig. 4

shows a side view of the bracket according to FIG. 3,

Fig. 5

shows a plan view of a second embodiment of a holding bracket according to the invention,

Fig. 6

5 shows a sectional view of the retaining bracket according to FIG. 5 along the line AA,

Fig. 7

5 shows a sectional view of the holding bracket according to FIG. 5 along the line BB,

Fig. 8

shows a side view of the bracket according to FIG. 5.

In the first embodiment shown in FIGS. 1 to 4, there is Moisture-proof luminaire from a housing 1, to which a trough 2 is attached from below is. The housing 1 and the tub 2 together form a space for took one or more lamps 3. The tub is replaced by several on both Side attached bracket 4 with its upper edge against an all-round Seal 5 pressed so that the tub 2 on the one hand firmly on the housing 1st is held and on the other hand the space in which the lamp 3 is arranged is moisture-proof to the outside.

For example, on a luminaire with a 58 W fluorescent lamp, there are on each Five retaining brackets are provided on the side of the damp room luminaire to hold the tub.

As can be seen from FIG. 3, according to the first exemplary embodiment Retaining bracket two elastic parallel legs 11, at the lower end of each a hook 13 is formed, which can best be seen in FIG. 4. The bent Ends of the two hooks 13 each sit laterally inwards Cross struts 15, which are essentially on a straight line and to which in each case a further, downwardly directed leg 17 connects. The two lower legs 17 are connected by a further cross strut 19, so that in Result a double bracket structure is formed in which a first bracket section is formed by the legs 11, the hooks 13 and the cross struts 15 and a second bracket section formed by the legs 17 and the cross strut 19 becomes. At their upper end, the two legs 11 are each elastic Provided clamping hook 21, the opposite across a respective cross section 20 the associated leg is slightly offset inwards. The bracket 4 consists of at least in the area of the legs 11 and the clamping hooks 21 elastic material. Preferably the whole bracket is made of metal, e.g. V2A steel. The aforementioned second bracket section can essentially not elastic, e.g. by using a different material be.

For receiving a bracket 4, the housing 1, as can be seen in FIG provided two housing pockets 30 which, on the one hand, as can be seen from FIG. 1, are open at the top and on the other hand in their outer wall, as shown in Fig. 2 is on the side facing away from the other housing pocket 30 Have slot 32 which in a groove 34 with a decreasing downward Depth passes. The distance between the slots 32 and the grooves 34 corresponds to the distance the leg 11, the width of the housing pockets 30 corresponds approximately to that Width of a cross section 20 including the clamping hook attached to it 21.

To mount a bracket 4, this is seen from above in the two housing pockets 30 inserted, so that the two clamping hooks 21, as can be seen in FIG. 1, brace against the two walls of the housing pocket and thereby hold the bracket 4 firmly on the housing and the clamp hooks 21 laterally offset legs 11 pass through the slots 32 and in the two grooves 34 are added.

The tub 2 has a lateral projection near its upper edge 40, the one on the underside, i.e. towards the tub floor, with a throat (Not shown) is provided, in which the hooks 13 in the assembled state and the cross struts 15 of the bracket 4 are added. From that throat then extend from the legs 17 and the further cross strut 19, which as Handle bar serves, further down. As can be seen from Fig. 1, the two stand Leg 17 from the wall of the tub 2 at an acute angle to the outside from. This facilitates the pushing apart of the bracket 4 when inserting the Trough 2. However, the transverse strut 19, which also projects, also becomes a Grip bar provided, with the help of which a user the bracket 4 for Loosening the tub 2 can easily pull outwards.

The trough 2 is preferably with a hook 42 at two points on each side provided near a bracket 4. With the help of this hook 42, the Trough 2 can be hooked onto the cross struts 19 when the connection from Housing and tub is loosened to allow storage of the tub when working on the Housing, e.g. to avoid when changing the lamp. Here the tub suspended on one side or suspended essentially on both sides are, in the latter case the distance of the cross strut 19 from the Cross struts 15 must be large enough to reach through the gap between the tub and the housing with the tub 2 suspended to be carried out to enable the corresponding work.

In the second embodiment shown in FIGS. 5 to 8, this is general with 50 designated mounting bracket made of a metal sheet, preferably made of V2A steel, formed and has a square central section 52, the of two cross struts 54a and 54b and elastic longitudinal struts perpendicular thereto 56a and 56b is constructed. At the top of the central section are at the Cross strut 54a extending beyond the struts 56a and 56b on both sides extends, two fastening hooks 58a and 58b attached on both sides, which partially protrude laterally beyond the longitudinal struts 56a and 56b. To the Cross strut 54 is on the side facing away from the fastening hooks 58a and 58b each a spring clip 60a or 60b attached to his from the cross strut 54a opposite side each have a further fastening hook 62a or 62b which points in the opposite direction to the hooks 58a and 58b. On are the lower cross strut 54b, also laterally via the longitudinal struts 56a and 56b protruding, two hook portions 64a and 64b are provided, which, respectively at the end of the hook section, one in the opposite direction to the hook have facing guide surface 66 (see FIG. 7).

A grip tab 70 is centrally located between the hook sections 64a and 64b a central hole 72 and a cross strut delimiting the hole downwards 74 is provided, which extends downward from the cross strut 54b.

In this embodiment, the hook portions 64a and 64b correspond to FIG upper cross strut 15 of the bracket in the embodiment discussed above, the grip tab 70 corresponds to that by the legs 17 and Cross strut 19 formed bracket portion in the first embodiment. The Hook sections 58a and 58b and 62a and 62b serve to fasten the holding bracket on the housing 1 and the hook portions 64a and 64b serve for gripping the tub rim and engaging the throat of the projection 40 and to Press the tub against the seal 5.

The operation of the bracket according to the second embodiment differs differs from that of the bracket according to the first embodiment essentially by the type of attachment to the housing 1. In this In the exemplary embodiment, the hooks 58a and 58b each overlap the upper one Edge of the housing pocket 30 or another upward recess of the housing 1 and the hooks 64a and 64b embrace the lower one from below Edge 80 of the housing wall or another downward recess of the Housing 1 so that the bracket 50 through the hooks 58a and 58b and the hooks 62a and 62b, which are connected by the spring clips 60a and 60b, after Kind of a retaining clip is releasably held on the housing.

As in the first embodiment, the hooks 64a and 64b overlap Tub edge from below and press the tub up against the seal 5. The guide surfaces 66 facilitate the insertion of the tub by pressing from underneath. Because the bracket 50 is prevented from shifting by the hooks 62a and 62b is secured upwards, is a loosening of the bracket when inserting excluded by pressing from below.

Like the first exemplary embodiment, the grip tab 70 is primarily used for releasing the connection between the housing and, as in the first embodiment, offers the possibility of the tub in the hole 72 above the cross strut 74 by means of the hook 42.

Those in the foregoing description, claims and drawings Disclosed features of the invention can be used individually as well as in any Combination for realizing the invention in its various embodiments be essential.

Reference list

1

casing

2nd

Tub

3rd

lamp

4th

Bracket

5

poetry

11

upper leg of the bracket

13

hook

15

upper cross strut of the bracket

17th

lower leg of the bracket

19th

lower cross strut of the bracket

20th

Cross section

21

Clamp hook

30th

Case pocket

32

slot

34

Groove

40

Projection of the tub

42

hook

50

Bracket

52

Central section

54a, 54b

Cross struts

56a, 56b

Longitudinal struts

58a, 58b

Fastening hook

60a, 60b

Spring clip

62a, 62b

Fastening hook

64a, 64b

Hook section

66

Leadership area

70

Grip tab

72

hole

74

Cross strut

80

lower case edge

Claims (14)

Damp room lamp with a housing (1) and a tub (2), which with its edge is attached to the housing (1) via a seal (5), so that a tightly closed space is formed in which one or more Lamps (3) are included, one or more on the housing (1) Holding elements (4; 50) are attached, which tightly but releasably to the tub (2) hold the housing (1), characterized in that at least one holding element (4; 50) one or more fastening elements (21; 58a, 60a, 62a, 58b, 60b, 62b) each having one or more hooks (21; 58a, 58b, 62a, 62b) for Intervention in associated recesses (30) of the housing (1) such that the or the fasteners due to elastic deformation against the housing (1) are braced, and that this holding element (4; 50) one Sealing hook section (13, 15; 64a, 64b), which in a recess of the Trough (2) engages to hold it on the housing (1), the Holding element (4; 50) at least in a connection area between one Fastener and the hook portion at least partially is elastically deformable. Damp room light according to claim 1, characterized in that at least one holding element (4) is designed as a one-piece bracket which on the the side facing away from the tub floor by at least one in a recess (30) of the housing (1) clamped clamping element (21) releasably on the housing (1) is attached and has a locking hook portion (13, 15) which in a Depression of the tub (2) engages to hold it on the housing (1), wherein the holding bracket (4) in the area between the clamped clamping element (21) and the locking hook section (13, 15) is at least partially elastic is. Damp room light according to claim 1 or 2, characterized in that at least one fastening element as a retaining clip (58a, 60a, 62a, 58b, 60b, 62b) is formed, which has hooks (58a, 58b, 62a, 62b) is provided, which each engage a projection of the housing, such that that the retaining clip (58a, 60a, 62a, 58b, 60b, 62b) between the two Projections is clamped. Damp room light according to claim 3, characterized in that at least two retaining clips of which at least one cross strut (54a) is connected are, which at least via an elastic longitudinal strut (56a, 56b) with the Locking hook section (64a, 64b) is connected. Damp room lamp according to one of claims 1 to 4, characterized characterized in that in the area of the locking hook section (13, 15; 64a, 64b) there is a cross strut (19; 74) for attack by a user. Damp room lamp according to claim 4, characterized in that in Area of a holding element (4; 50) on the tub (2) at least one for Trough bottom projecting hook (42) is provided, the cross strut (19; 74) of the holding element (4; 50) and the hook (42) are designed such that after the trough (2) has been released, the hooks (42) into the cross strut (19; 74) can be hung. Moisture-proof luminaire according to one of claims 1 to 6, characterized in that that the bracket (4) is formed essentially from a metal wire is. Damp room lamp according to one of claims 1 to 7, characterized characterized in that the locking hook portion (13, 15; 64a, 64b) in the Then one or more guide elements towards the tub floor (17, 19; 66) are attached, which from the tub (2) to the outside and in Stick out towards the tub floor. Damp room lamp according to claim 8, characterized in that a Guide element (17, 19) at the end facing the tub floor with a Cross strut (19) is provided for attack by a user. Damp room lamp according to claim 9, characterized in that the Guide element (17, 19) has two legs (17) through which Cross strut (19) are connected. Damp room lamp according to one of claims 1 or 2 and / or one of claims 5 to 10, characterized in that the holding bracket (4) two Legs (11), each with at the end facing away from the tub (2) a clamping hook (21) are provided, from this to the Closure hook section (13, 15) and extend in the area of Locking hook section are interconnected. Damp room lamp according to one of claims 1 to 11, characterized characterized in that the width of the edge of the seal (5) Trough (2) corresponds essentially to the wall thickness of the trough (2). Damp room lamp according to one of claims 1 to 12, characterized characterized in that the width of the seal (5) is greater than half by more than is the width of the edge of the tub (2) resting on the seal (5). Damp room lamp according to one of claims 1 to 13, characterized characterized in that the housing (1) consists of a thermoset.

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