DE102009004025A1 - Luminaire with at least partially detachable inner frame - Google Patents

Abstract

A luminaire (1), in particular recessed luminaire for ceilings and / or walls, has a luminaire housing (2), which is intended for mounting on or in a wall or ceiling and for receiving illuminants, and an inner frame (10), in particular for optical support Elements which is at least partially detachable from the housing (2) and connected via a closure assembly in a mounting position with the housing (2). The closure arrangement has a latching mechanism (30), via which the inner frame (10) is latched in the mounting position with the housing (2) and whose latching is releasable without tools, wherein the latching mechanism (30) has a solid latching hook (35) cooperates with a counter-element (40) and is movably arranged such that it is movable between a detent position and a release position.

Description

The The present invention relates to a luminaire according to the The preamble of claim 1, which in particular for the Installation in ceilings and / or walls is provided and this a luminaire housing for receiving bulbs as well having an inner frame connected to the housing. Especially The present invention relates to a so-called downlight.

at Recessed luminaires whose housing, for example, in openings suspended ceiling elements are arranged, it is common a cover provided for light emission by means of a special frame element to be arranged, which is attachable to the housing. The Frame element is in this case, for example. Via screw, bayonet or snap-lock connections fastened to the housing, where it then with the help of appropriate tools back from the Housing can be solved. The detachable arrangement the frame member with the cover is required to a To allow access to the interior of the luminaire housing. For example, such access may be required to Do maintenance or arranged in the housing To change bulbs.

Since in the assembled state of the lamp it is only accessible from the bottom, it is advantageous if the frame member with the cover as simple as possible, in particular without the use of appropriate tools can be solved. From the WO 2006/037572 A1 For this purpose, a recessed ceiling light is known in which a special closure assembly is provided which is effective between a housing frame and a functional frame for holding a cover plate. The central component of the closure arrangement here is a wire spring, which forms locking elements at their end regions, which interact with a locking receptacle in the functional frame. The spring and the latching receptacle are designed such that latching and releasing of the functional frame takes place in each case by exerting pressure on the frame in its closing direction. By means of this so-called push-push closure arrangement, a particularly simple fastening and releasing and the functional frame is made possible.

Of the present invention is based on the object, starting from the above-mentioned prior art, the possibilities for Attachment of a corresponding frame element to a recessed light to improve.

The Task is by a luminaire, which has the characteristics of the claim 1, solved. Advantageous developments of the invention are the subject of the dependent claims.

The inventive solution is in turn based on the idea, a shutter assembly with a latching mechanism to provide a releasable attachment to allow a frame member to a lamp housing. According to the invention, however, now the locking mechanism a massive latching hook, which interacts with a counter element and is arranged such that it moves between a detent position and a release position is movable.

According to the invention Accordingly, a luminaire, in particular a recessed luminaire for ceilings and / or walls provided with one Luminaire housing, which for mounting on or in a wall or ceiling as well as for receiving bulbs is provided, wherein the lamp further comprises an inner frame, in particular for mounting having optical elements, at least partially from the housing detachable and via a closure arrangement in one Mounting position is connected to the housing, and wherein the closure assembly has a latching mechanism over which the inner frame in the mounting position with the housing is latched and its locking tool-free solvable is. According to the invention, it is provided that the locking mechanism has a solid latching hook, with a Counter-element cooperates and arranged so movable that he movable between a detent position and a release position is. In particular, the latching hook can be mounted pivotably.

Thereby, that instead of a spring element now a massive latching hook for detachably connecting the inner frame to the luminaire housing is used, the connection between the housing and Interior frame improved. This is especially important because because the locking mechanism when installing the lamp in a ceiling also completely the weight of the frame with the attached Must record elements. By using the massive latching hook can now inner frame with optical elements on the lamp housing be attached, which have a significantly higher weight, than was previously possible. Even with lights with a relative large light exit opening and thus an exit window, their weight is not irrelevant, is accordingly a reliable mounting of the mounting frame allows.

The latching hook of the latching mechanism according to the invention is preferably arranged on the housing or the inner frame and cooperates with the arranged on the opposite element, so the inner frame or the housing counter element. The counter element can on the one hand have a locking projection for locking with the latching hook in the locking position and on the other hand a guide slot, which serves for transferring the latching hook from the locking position to the release position and vice versa. In this case, the latching hook can cooperate in particular with the counter element, the latching and releasing of the inner frame takes place in each case by applying pressure to the inner frame in its closing direction. Accordingly, in the case of the solution according to the invention, it is also preferable to fasten and release the frame with the aid of a particularly convenient push-push closure arrangement.

The locking mechanism may also have a spring element, via which the latching hook is biased into the locking position or the release position. Unlike the one from the WO 2006/037572 A1 However, this known solution does not absorb the weight of the frame, the spring element. Instead, in the present invention, the frame is held exclusively by the catch hooked with the counter-element.

Of the Frame is preferably designed such that it is in the mounting position is disposed substantially within the housing. In particular, a form-fitting arrangement would be conceivable, which gives a particularly visually appealing appearance the light leads.

Of the Frame can be completely removed from the case be releasable, in which case preferably at least two opposite sides of the housing a locking mechanism is formed. It would be conceivable, however Also, to provide the locking mechanism only on one side of the frame and this on the opposite side over a hinge pivotally connected to the luminaire housing. The frame may not be fully removed in this case, though at least be pivoted so that the interior of the lamp accessible with the bulbs.

As already mentioned, the inner frame is preferably used for Holder of light influencing elements. These may be For example, an at least partially translucent cover or another light-influencing element for emitting light act. A reflector may also be arranged on the inner frame.

following the solution according to the invention is based on the accompanying drawings are explained in detail. Show it:

1 and 2 various perspective views of a ceiling recessed luminaire according to the invention with a housing and an inner frame detachably arranged thereon;

3 the lamp according to the invention in a state in which the inner frame has been removed from the housing;

4 a single view of the coming in the lamp according to the invention latching mechanism;

5a - 5d Views of the various components of the locking mechanism according to the invention and

6a - 6f the position of the individual components of the locking mechanism when attaching and detaching the inner frame to or from the lamp housing.

The 1 and 2 show views of an inventively designed recessed ceiling luminaire, which forms a so-called downlight. It should be noted, however, that the invention is not necessarily limited to such recessed lights. The detent mechanism described in more detail below could also be used in luminaires, for example in the case of surface-mounted luminaires, in which a frame part for supporting additional optical elements is to be fastened within a luminaire housing.

The generally with the reference numeral 1 designated recessed light initially has a box-shaped light housing 2 on, which limits a light exit opening at its front end. At this front is also a laterally projecting frame 3 formed, in the mounted state of the housing 2 on the bottom or outside of the ceiling or wall, while the remaining housing extends through a ceiling or wall opening therethrough. By means not described in detail fasteners is doing the case 2 attached to the wall or ceiling. The housing 2 is used in particular for receiving lighting devices and operating devices for operating the lamps. At the back of the case 2 are cooling fins 4 formed, which serve to dissipate the heat emitted by the bulbs heat.

To the front, the housing should 2 possibly be completed by a transparent cover, on the one hand to allow a light output, on the other hand to prevent the ingress of dust or dirt and moisture. On the other hand, it must be possible to obtain access to the interior of the luminaire during maintenance work, for example, the Replace bulbs. As this is in the installed state of the luminaire housing 2 is only possible from the front, the cover is not directly to the housing 2 connected. Instead, this is an inner frame 10 used, on which the - not shown in the figures - cover plate is arranged and releasably attached to the housing 2 can be attached. The inner frame 10 can also be used to hold other optical elements - for example, a reflector - are used over which the light output of the light emitted by the bulbs light is affected.

According to the invention is now the inner frame 10 with the luminaire housing 2 connected via a closure assembly, which is a simple release of the inner frame 10 from the case 2 allows. In this way, access to the interior of the luminaire housing 2 to be obtained.

The closure arrangement is designed in the present case such that a complete release of the inner frame 10 from the luminaire housing 2 is possible. For this purpose are on two opposite sides of the lamp housing 2 provided two locking mechanisms, with the help of the inner frame 10 with the housing 2 can be locked. The latching mechanisms are designed such that by applying pressure to the inner frame 10 in the direction of the housing 2 each latching or releasing the locking takes place. By means of this so-called push-push mechanism, a particularly simple and, in particular, tool-free fastening and releasing of the frame is achieved 10 allows. As in 3 is shown schematically, it is only necessary that the frame 10 in each case in the direction of the arrow on the luminaire housing 2 is put on or pressed. The this enabling special embodiment of the locking mechanisms will be explained below with reference to the other figures.

4 shows the essential components of the locking mechanism 30 , which on the one hand is a latching hook 35 as well as on the other hand with the latching hook 35 interacting counter element 40 is. The latching hook 35 is by means of a fastener 50 on a side wall of the lamp housing 2 while, however, the counter element 40 on one of the inner frame 10 protruding arm 11 is trained. In principle, however, a reversed arrangement of these components would be conceivable. The latching hook would then be arranged on the inner frame.

This in 5a plate-shaped fastener shown in detail 50 points to the holder of the latching hook 35 first a laterally projecting pin 51 on. The pencil 51 is divided into two and has at its ends laterally projecting protrusions 52 on, which after reaching through an opening formed in the latching hook 36 projecting laterally so that the latching hook 35 stuck on the pen 51 mounted and accordingly to a perpendicular to the fastener 50 aligned axis is pivotable. Furthermore, on the latch hook 35 also a pen 37 formed in a bow-shaped slot 53 on the fastener 50 engages, causing the pivotal movement of the latching hook 35 is limited to a certain area. 5d further shows a wing-shaped spring 55 , which according to the representation of 4 at the the slot 53 opposite end portion of the fastener 50 is arranged and this with their end portions 56 in corresponding recesses 54 intervenes. This spring 55 , in particular their central protrusion 57 acts with a on the latch hook 35 trained further projection 38 together. In the assembled state of the latching hook 35 on the fastener 50 This has the consequence that the latch hook 35 is biased either in a locking position or in a release position, wherein a change between the two positions is achieved in that the latching hook 35 is pivoted so that the projection 38 the protrusion 57 happens. At the front end of the locking hook 35 is finally a hook element 39 formed, which in a special way with the counter element 40 cooperates to realize the push-push mechanism.

The counter element 40 itself is designed such that on the one hand a locking projection 41 and on the other hand, an arcuate guide slot 42 is formed. Both elements - latching projection 41 and scenery 42 - act with the latching hook 35 together in the manner described below. For this purpose are in the housing 2 the light 1 corresponding passage openings formed through which the arms 11 of the frame 10 grab, so the counter element 40 - as in the 1 and 2 shown - in contact with the latching hook 35 arrives.

Should now the inner frame 10 on the housing 2 be attached, so first as shown in 6a the inner frame 10 from the front of the case 2 put on this, in such a way that the arms 11 in the case 2 pass through trained openings and accordingly the counter element 40 in abutment against the hook element 39 of the latching hook 35 who is at that time in a position at which he by the spring 55 in the rest position (in the illustration to the left) is biased.

Through the sloping bottom 41a the locking projection 41 this is the hook 35 slightly distracted ( 6b ), but only to a small extent, leaving him still by the spring 55 is biased in the rest position. Will now be the inner frame 10 continue towards the housing 2 pressed, so at some point the hook element 39 of the hook 35 the locking projection 41 pass and then the hook 35 due to the spring force again pivot outwards, so that the hook element 39 the lead 41 engages behind and the latching hook 35 now with the counter element 40 is locked ( 6c ). Accordingly, without the use of a tool, the inner frame can be produced in this way 10 with the luminaire housing 2 be locked. The weight of the inner frame 10 is here alone by the locking hook 35 absorbed, so even in the event that the inner frame 10 with the attached optical elements has a greater weight, a reliable support is guaranteed.

Should the inner frame 10 again from the case 2 are removed, so only the frame is required 10 continue towards the housing 2 to press. This has the consequence that due to the arcuate configuration of the guide slot 42 the locking hook 35 now in the release position, ie in the representation in 6d is pivoted to the right. The pivoting movement is so great that the projection 38 of the latching hook 35 the protrusion 57 the feather 55 happened and now the locking hook 35 in the release position, that is biased to the right. Further, since the hook element 39 now no longer the lead 41 engages behind, can the inner frame 10 from the case 2 be removed. Here, the lower sloping contact surface ensures 43 the guide scenery 42 furthermore, that just before the final release of the inner frame 10 from the case 2 the locking hook 35 in turn is pivoted to the left and the projection the protrusion 57 the feather 55 happens ( 6e ). Next time you attach the inner frame 10 on the housing 2 So is the latch hook 35 already automatically in the right place, in 6f shown position.

From the above description it can be seen that the closure mechanism according to the invention is a particularly simple fastening and releasing of the inner frame 10 on or from the luminaire housing allows. Due to the special design of the locking mechanism, a particularly secure mounting of the frame on the housing is also possible.

there would be an alternative to the illustrated embodiment also conceivable, the locking mechanism only on one side of the frame train and cross the frame on the opposite side to connect a hinge to the housing. In this case then the frame would not be completely of that Housing removed but only solved on one side and then be pivoted, so that in turn the interior of the lamp would be accessible.

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• WO 2006/037572 A1 [0003, 0010]

Claims (11)

Lamp ( 1 ), in particular recessed luminaire for ceilings and / or walls with a luminaire housing ( 2 ), which is intended for mounting on or in a wall or ceiling and for receiving bulbs, and with an inner frame ( 10 ) in particular to the holder of optical elements, at least partially from the housing ( 2 ) releasably and via a closure assembly in a mounting position with the housing ( 2 ), the closure arrangement having a latching mechanism ( 30 ), over which the inner frame ( 10 ) in the mounting position with the housing ( 2 ) is latched and its locking tool-free solvable, characterized in that the latching mechanism ( 30 ) a massive latching hook ( 35 ), which with a counter element ( 40 ) cooperates and is arranged such that it is movable between a detent position and a release position. Luminaire according to claim 1, characterized in that the latching hook ( 35 ) is pivotally mounted. Luminaire according to claim 1 or 2, characterized in that the latching hook ( 35 ) on the housing ( 2 ) or the inner frame ( 10 ) and with which at the inner frame ( 10 ) or the housing ( 2 ) arranged counter element ( 40 ) cooperates. Luminaire according to claim 3, characterized in that the counter element ( 40 ) on the one hand a latching projection ( 41 ) for locking with the latching hook ( 35 ) in the detent position and on the other hand a guide slot ( 42 ) for transferring the latching hook ( 35 ) from the detent position to the release position and vice versa. Luminaire according to claim 4, characterized in that the latching hook ( 35 ) with the counter element ( 40 ) cooperates such that latching and releasing the inner frame ( 10 ) in each case by applying pressure to the inner frame ( 10 ) takes place in the closing direction. Luminaire according to one of the preceding claims, characterized in that the latching mechanism ( 30 ) additionally a spring element ( 55 ), over which the latching hook ( 35 ) is biased in the locking position or the release position. Luminaire according to one of the preceding claims, characterized in that the inner frame ( 10 ) in the mounting position substantially within the housing ( 2 ) is arranged. Luminaire according to one of the preceding claims, characterized in that the Innanrahmen ( 10 ) in the mounting position positively in the housing ( 2 ) is arranged. Luminaire according to one of the preceding claims, characterized in that the inner frame ( 10 ) completely from the housing ( 2 ) is detachable, wherein on at least two mutually opposite sides of the housing ( 2 ) a latching mechanism ( 30 ) is provided. Luminaire according to one of the preceding claims, characterized in that on the inner frame ( 10 ) is arranged a Lichtbeinflussungselement, in particular an at least teillichtdurchlässige cover plate. Luminaire according to one of the preceding claims, characterized in that on the inner frame ( 10 ) A reflector is arranged.