EP0864808B1 - Mounting device for recessed lighting fixture - Google Patents

Abstract

The fixture includes one-piece, springy, elastic fixture element having a locking arm and a holder arm in at least one opening in a light-housing. The fixture element is inserted with the holder arm into a first opening (5.1,5.2) in the light-housing, and with the locking arm into a second opening (5.2,5.3), then adjusted into a fixture position and locked. The openings are in the form of cruciform slits in the corners of the housing. The fixture element is in the form of an angled sprung strip with a U-shaped part. The locking arm, and a connecting bridge piece between the holder and locking arms are hook-shaped and protrude from the holder arm.

Description

The invention relates to a recessed light for attachment in a ceiling construction according to Preamble of claim 1.

In particular, the invention relates less to recessed lights Heights in which particularly slim lamps be used.

A fastening device for a recessed ceiling light is known from EP 0 643 260 A1. The fastener consists of a fastener, which as a U-shaped bracket is formed, and from one Locking element which is designed as a spring and to secure the bracket in the fastening position the recessed light serves.

The legs of the U-shaped bracket are aligned vertically and are in the longitudinal openings of the lamp housing guided. Secure pimpled formations on the legs a bracket of the bracket on the lamp housing in one Pre-assembly position. The bracket is used for fastening the thighs pushed through the slots and lies with end notches on a ceiling support or one Ceiling element. In this mounting position the Retaining bracket with the help of the spring-like locking element, which by additional slots in the bracket and Openings in the luminaire housing engage, secured.

The known fastening device is due to the two-part Training in production technology and assembly relatively complex. In addition, this fastening device not suitable for recessed lights, their light housings have a relatively low overall height and which designed for the arrangement of particularly thin lamps are. With these recessed lights of a new type only a small free interior space available, so that Assembly work with or without tools only in a restricted area Scope are possible.

A fastener with a one-piece fastener is known from US-PS 4,250,540. The fastener, which is a stylized side view "S" represents a central area, an upper area Locking area, a lower holding area and narrower Management areas that are adjacent to the central area on. A T-shaped opening in a lamp housing is for the engagement of locking elements of the locking area on a relatively long vertical leg on the Inside and outside with rack-like design Provide boundary areas. For fastening a lamp the fastener must first with the lower Holding area through an upper cross leg of the T-shaped Opening opened and then adjusted vertically until the upper locking area through the cross leg can be inserted. After another vertical Adjustment down to the support area the inside of the ceiling must snap into place and outside locking elements on the boundary areas the opening can be reached.

DE 41 11 100 A1 is a fastening device for a recessed ceiling light with an opening an Ceiling overlapping ring from below and fastened to it vertical legs that are at different heights to each other parallel and horizontal transverse slots have known. As a fastener is a Clamping tab uses a resilient area with a grip area and a locking projection and a tab base with the resilient on both sides Area arranged hook areas. When pushing the clamping tab through one of the Cross-slits of a leg become the base plate body and. the resilient area pushed together. With circulation a lower edge of the base plate body on the The clip with the hook areas and the blanket can Locking projection are held on the cross slot.

These one-piece fasteners are for an introduction into an opening of a lamp housing and one subsequent defined adjustment movement in a mounting position trained and have a relatively complex Construction on. The design-related space requirement for Insertion and adjustment has an effect on recessed lights low heights disadvantageously.

A lamp holder is known from US Pat. No. 4,739,460, in which two resilient fasteners in a vertically aligned elongated hole. Each fastener is bent twice and in Cross-section approximately triangular. In an insertion position the fastener protrudes into the interior of the round lamp housing. For the mounting position each fastener must be repositioned on the foot side, thus an approximately rectangular holding area to the outside can be pivoted into a fastening position.

In U.S. Patent 4,733,339 there is also a mounting arrangement for holding a round lamp in a ceiling opening described. Spring-elastic fasteners, which has a mounting leg, one approximately rectangular bent spreading legs, a lower, pivotable Have end area and an upper engagement area, work with a T-shaped lower opening and an upper one Slot opening together to pivot out of the Insertion position in the fastening position and tensioning to allow in the mounting position.

A luminaire arrangement is described in US Pat. No. 2,954,201. which have fastening devices on both side walls is held in a ceiling opening. In the area the ceiling opening are additional construction elements provided as a support for fasteners. The fasteners are approximately semicircular and with a V-shaped end portion in a lower opening of the lamp housing held pivotable. At the other The end of the fastener is a support area trained, which in the mounting position on the additional Construction of the ceiling opening rests. The fastener comes with the semicircular section in an upper, slot-like housing opening during the Swivel led and with a narrower end area held in the locked position when the fastener is in the fastening position. The bottom opening is as a double M and the top opening as a double slot trained with different widths.

Disadvantages of the known downlight are one relatively complex design of the fasteners and the different openings in the Luminaire housings.

The invention has for its object to provide a recessed luminaire for mounting in a ceiling structure, which is extremely simple and, in addition to efficient and in particular tool-free assembly, can be produced particularly cost-effectively and can be used in particular with small overall heights.

According to the invention the object is achieved by the features of the claim 1 solved. Practical and advantageous configurations are in the subclaims and in the description contain.

The invention is based on the idea of a resilient, one-piece fastener, which is clip-like adjusted from a mounting position to a mounting position, in particular can be pressed and with a Holding leg and a locking leg is provided, with the holding leg in a first opening of the lamp housing and with the locking leg in a second Insert opening of the lamp housing and using a Holding element, which on the underside of the holding leg is formed in an assembly position on the Hold luminaire housing. The openings are according to the invention for holding the holding leg and the locking leg a cross-shaped fastener, e.g. as Cross slots, designed and advantageously in corner areas of the lamp housing arranged ..

In the assembly position, in which the lamp first only with the corresponding number of in the respective cross-shaped openings inserted fasteners is provided, protrudes only an end portion of the holding leg beyond the lamp housing, so that the installation of the pre-completed Luminaire in a ceiling opening unhindered can. In a one-man assembly without tools only the locking leg of each fastener inserted into the corresponding cruciform opening and then the entire fastener into one Fixing position pressed.

The fastening position of the fastener will reached via a clamp seat in which the fastener by pressing on a connecting bridge from the interior of the lamp housing can be adjusted. A clamping effect is placed on top of the ceiling structure Holding leg exercised to ensure a secure attachment of a lamp long enough is. Securing the fastening position of the fastener takes place in the area of the locking leg, which can be snapped or clamped onto the luminaire housing is trained.

It is advantageous that the resilient, from one Flat fastener formed with its longer Holding leg and the hook-like bent or angled Connecting bridge and locking leg with one another arranged and identically designed openings interacts in the luminaire housing. Then there is the Possibility of luminaire housings of different heights in one Fasten the ceiling opening by the holding leg and then the locking leg in the corresponding Openings are inserted and locked. Moreover a recessed luminaire can be fixed in the ceiling openings, which are formed in false ceilings are. The optional arrangement of a fastener in two openings one above the other allows a quick adjustment on site, being in the assembly position and in the mounting position only one extraordinary small space in and on the recessed light is claimed.

A fastener, which is designed like a hook and a longer holding leg and a shorter locking leg has, can be inexpensive Manufactured by a stamping and bending process from spring steel getting produced.

The cross-shaped openings each have a horizontal one Slot, the dimensions of which are flat ribbon-like Holding legs of the fastener are adapted. It the horizontal slot opening in the upper area makes sense the vertical slot opening to arrange.

A connecting web, which the holding leg with the locking leg connects and trapezoidal in plan view is formed, with projecting connecting edges in the fastening position in the area of the horizontal Slots on the inside of the luminaire housing and limited inserting the holding leg. The connecting bridge tapers upwards towards the locking leg, which expediently has the same width like the holding leg.

A locking of the fastener to secure the Fastening position is reached when locking elements on Locking legs are formed, which the lamp housing reach behind in the area of the cross-shaped openings. If at least two locking elements spaced apart can be arranged, the fastener in two positions and thus with a smaller and larger one Clamping effect can be positioned. In addition to the resilient Training allow the at least two locking elements an adjustment or compensation to different Heights and / or yielding material of the ceiling construction.

It makes sense to have the fastener with at least a holding element on the holding leg, which so with the respective cruciform opening of the lamp housing interacts that a bracket of the fastener is guaranteed in an assembly position.

To disassemble a recessed light, the locking position of the Locking leg to be lifted. If the locking elements protrude from the surface of the locking leg, is a pressure, e.g. B. with a screwdriver, in Towards the light exit side of the lamp until the Holding leg through the horizontal slot into the interior the lamp can be withdrawn. In this assembly position the fastener is attached to the Underside of the holding leg formed, for example claw-like holding element held on the lamp housing. To completely remove the fastener the holding leg with the holding element by the respective to thread the cruciform opening of the lamp housing.

Fig. 1

eine perspektivische Darstellung eines Befestigungselementes der erfindungsgemäßen Einbauleuchte ;

Fig. 2

eine ausschnittsweise Darstellung einer erfindungsgemäßen Einbauleuchte, welche mit Hilfe der Befestigungseinrichtung in einer Deckenkonstruktion gehalten ist;

Fig. 3 bis Fig. 5

eine schematisierte Darstellung des Einbaus einer erfindungsgemäßen Einbauleuchte in eine Deckenkonstruktion mit Hilfe der Befestigungseinrichtung und

Fig. 6

eine schematisierte Darstellung der Demontage der erfindungsgemäßen Einbauleuchte aus einer Deckenkonstruktion.

The invention is explained below with reference to a drawing; in this show in a highly schematic representation

Fig. 1

a perspective view of a fastener of the recessed light according to the invention;

Fig. 2

a partial view of a recessed light according to the invention, which is held with the aid of the fastening device in a ceiling structure;

3 to 5

a schematic representation of the installation of a recessed light according to the invention in a ceiling structure with the aid of the fastening device and

Fig. 6

a schematic representation of the disassembly of the recessed light according to the invention from a ceiling structure.

Fig. 1 shows a fastener 2, which for fastening a recessed luminaire in a ceiling construction is trained. The fastener 2 is made of one Ribbon steel manufactured by a stamping and bending process and has a holding leg 4, a locking leg 6 and a connecting web 8.

Fig. 1 illustrates that the holding leg 4 is relatively long and the locking leg 6 and the connecting web 8 are hook-like or U-shaped. The end areas 14, 15 at the free end of the holding leg 4 or Locking leg 6 are inclined to each other and provided with chamfers 9. The fastener 2 points in the area of the holding leg 4 and the locking leg 6 almost a uniform width, z. B. from 20 mm, and thickness, e.g. B. of 0.5 mm

The connecting web 8 connects to the holding leg 4 a larger width in steps, so that on both sides protruding connecting edges 10 are formed. This limit an adjustment movement of the fastening element 2 from an assembly position to the fastening position, because they in the area of horizontal slots 12 (see FIG. 2) on the inside rest on the lamp housing 7. This creates a defined one Positioning of the fastener 2 reached.

The connecting web 8 is approximately as a in plan view equilateral trapezoid, which extends upwards tapered to the width of the locking leg 6. Conveniently the connecting edges 10 are rounded.

To securely hold a recessed light 1 in a To ensure ceiling construction 3 (see FIGS. 2 to 6), the fastening element 2 is bent or angled in this way formed that the holding leg 4 with the connecting web 8 an obtuse angle, for example one Forms an angle of approximately 120 °. The angle between that Connecting web 8 and the locking leg 6 is in this embodiment about 75 °. This runs the locking leg 6 approximately parallel to the holding leg 4 and ensures problem-free insertion of the locking leg 6 to a press fit of the holding leg 4 and a secure support on a ceiling element as well at the same time a catch on the lamp housing 17 of the recessed lamp 1 by at least one locking element 16 on the locking leg 6 to achieve.

If two locking elements 16.1 and 16.2 are formed, can the fastener 2 with different clamping effects lie on a ceiling structure and for example a resilient effect of a yielding cover material compensate.

The holding leg 4 designed as the lower leg is provided with at least one holding element 24. This stands down and enables pre-assembly of all required Fastening elements 2 on one to be installed Downlight 1.

Fig. 2 shows a corner area of a recessed light 1 with two side walls 17 and formed therein and one above the other arranged cross-shaped openings 5.1, 5.2, 5.3 for receiving each a fastener 2. In the area of the right Side wall 17 is a section of a ceiling element Ceiling construction 3 shown. On the ceiling construction 3 is the fastener held in the fastening position 2 with a broad side of the holding leg 2. A fuse of the fastener 2 in the shown Fastening position is through the locking leg 6 reached, which led in the opening 5.2 and up to one first latching position, which by a rear grip of the outer locking element 16.2 is reached, is adjusted. With this adjustment, the fastener 2 of an interior 18 up to the stop of the connecting web 8 in the area of the connecting edges 10 on the side wall 17 moves so that the entire holding leg 4 and a Larger part of the locking leg 6 from the lamp housing 7 stick out. The connecting web 8 runs in the in Fig. 2 locking position at an angle to the side wall 17 of the lamp housing. A locking element on the wall 16.1 is not shown in FIG. 2.

The advantageous design of the spring-elastic fastener 2, easy handling when assembling and disassembly, which in connection with FIGS. 3 to 6 to be described in more detail, are also based on a corresponding Formation of the cross-shaped openings 5.1, 5.2 and 5.3 in the side walls 17 of the lamp housing 7.

The cross-shaped openings 5.1 to 5.3 are of identical design Cross slots, arranged one above the other and almost sufficient up to a top surface 25 of the lamp housing 7. The number the cross-shaped openings 5.1 to 5.3 is from the height of the lamp housing 7 and the size of the fastener 2 and the approximately complementary cross-shaped openings 5.1 to 5.3 dependent. An almost identical one is essential Distance between the cross-shaped openings 5.1 to 5.3, especially between horizontal slots 12, and the distance between the holding leg 4 and the Locking leg 6 of the fastener 2. It can then the fastener 2 with the holding leg 4 in the corresponding opening 5.1 or 5.2 introduced, then the locking leg 6 in the arranged above each Opening 5.2 or 5.3 inserted and according to the order of the Recessed lamp 1 in the opening of the ceiling structure 3 entire fastener 2 in the locked position according to Fig. 2 are pressed outwards.

The height of the horizontal slots 12, which is essential is less than the width of vertical slot openings 11 of the cross-shaped openings 5, almost corresponds to the thickness of the band-like Fastening element 2, the protruding upwards To take into account locking elements 16.1 and 16.2 are. The vertical slots 11 are expedient in each case above the horizontal slots 12 which are somewhat are narrower, for engaging a tool, e.g. B. a screwdriver, formed during disassembly. This can also result in an improved locking position in the area the locking elements 16.1 and 16.2 can be reached. The Locking goes essentially to the spreading effect of the Locking leg 6 and holding leg 4; back. The end regions 14, 15 of the holding leg inclined towards one another 4 and the locking leg 6 also facilitate with their Introductory slopes 9 the introduction into the respective cross-shaped slot opening 5.1 to 5.3 of the lamp housing 7.

3 to 5 is an installation of a recessed light 1 according to the invention with the help of a fastening device shown. The downlight 1 is in this embodiment designed to arrange two lamps 20. Three or four lights can also be arranged. The ceiling construction 3 corresponds to that according to FIG. 2. The same features have the same reference numerals Mistake. 3 shows the insertion of the mounting element 2 in the lower cross-shaped Opening 5.1 of the lamp housing 7. The cross-shaped openings 5 in the Side walls 17 of the downlight 1 are in a uniform Height introduced. The fastener 2 is as can be seen from the right representation of FIG. 3, so pushed far through the lower opening 5.1 until the connecting edges 10 and the entire holding leg 4 protrudes beyond the side wall 17. In this position the downward bent end region 15 of the locking leg 6 at the level of the second opening 5.2 and can be done without tools by pressing on the connecting bridge 8 are pushed through this opening 5.2 (Fig. 4, left) until the outer locking element 16.2 the side wall 17th engages behind. This mounting position is in Fig. 4, right side shown. The holding leg 4 lies on the ceiling structure 3, the support in this Example takes place in the region of the bent end region 14.

5 is the adaptation of the fastening device a changed height of the ceiling structure 3 shown. A ceiling support 13 is shown as an example, which is why now the fastening element 2 with the holding leg 4 guided in the middle opening 5.2 and the one arranged above it Locking leg 6 in the upper opening 5.3 is recorded. A clamping effect of the holding leg 4 the ceiling structure 3, 13 is defined by the angled Formation of the fastener 2 in the locked position over the outer locking element 16.2 (left side of the Fig. 5) causes.

To remove a recessed light 1, the clamped position of the Fastening element 2 on the lamp housing 7 and on the Ceiling construction 3 can be solved. For this purpose the locking in the region of the locking element 16, 2 thereby canceled that the locking leg 6 down to Light exit side is moved until the locking leg 6 with the locking element 16.2 through the horizontal Slot 12 of the cross-shaped opening 5.2 can be moved. Depressing the locking leg 6 can with a Screwdriver 22 are carried out (left side of the Fig. 6). From the right position of the fastener 2, which is approximately an assembly position before installation corresponds to a lamp, only the support leg 4 protrudes its area beyond the holding element 24 via the Luminaire housing 7 also. The focus of the fastener 2 lies within the lamp housing 7, so that the outside area is pivoted upwards. A fixation the fasteners 2 pre-assembled in this Condition is achieved by the holding element 24, which in the Area of the cross-shaped opening 5.1 is held latching.

Claims (12)

1. Recessed lighting fixture (1) for mounting in a ceiling structure (3) and having a mounting element (2) constructed in one-piece, springy manner and having a holding leg (4) and a locking leg (6), and with at least two openings (5) in a lamp housing (7), into which the mounting element (2) can be introduced in each case with the holding leg (4) and the locking leg (6) and is subsequently adjustable in a mounting position, where it can be fixed,
   characterized in that

   the openings (5) of the lamp housing (7) are constructed as cruciform openings (5.1, 5.2, 5.3),

   that the cruciform openings (5.1, 5.2, 5.3) are identically constructed and are superimposed,

   that a holding element (24) is constructed on the underside of the holding leg (4) and

   that the holding element (24) is held on the lamp housing (7) in an installation position in which only the holding leg (4) projects partly from the lamp housing (7).
2. Recessed lighting fixture according to claim 1,
   characterized in that
   there are in each case three cruciform openings (5.1, 5.2, 5.3) for a mounting element (2).
3. Recessed lighting fixture according to claim 1 or 2,
   characterized in that
   the cruciform openings (5.1, 5.2, 5.3.) in each case have a vertical slot (11) and a horizontal slot (12) and that the horizontal slot (12) is constructed in complimentary manner to the holding leg (4) and locking leg (6) of the mounting element (2) and is in each case located in the upper area of the vertical slot (11).
4. Recessed lighting fixture according to one of the preceding claims,
   characterized in that
   the mounting element (2) is constructed as an angular or bended spring strip with a U-shaped area and the locking leg (6) as well as a connecting web (8) being designed between the holding leg (4) and the locking leg (6) project in a virtually hook-like manner from the holding leg (4).
5. Recessed lighting fixture according to claim 4,
   characterized in that
   the locking leg (6), which has a relatively short construction, and the holding leg (4), which is at least twice as long as the locking leg (6), are roughly parallel to one another and are in each case provided with an angular or bended end region (14, 15), which are directed towards one another.
6. Recessed lighting fixture according to one of the preceding claims,
   characterized in that
   the spacing between the locking leg (6) and the holding leg (4) corresponds to the spacing between the superimposed, cruciform openings (5.1, 5.2, 5.3) of the lamp housing (7) and that the mounting element (2) with the holding leg (4) can be inserted in this cruciform opening (5.1, 5.2) which corresponds to the thickness or height of the ceiling structure (3, 13) and can be locked by means of the locking leg (6).
7. Recessed lighting fixture according to one of the claims 4 to 6,
   characterized in that
   the mounting element (2) in the mounting position with the holding leg (4) is inserted and locked through a lower, cruciform opening (5.1) until projecting connecting edges (10) of the connecting web (8) strike against a side wall (17) of the lamp housing (7) and with the locking leg (6) through the cruciform opening (5.2) located above the same and that the connecting web (8) virtually engages on the side wall (17) of the lamp housing (7).
8. Recessed lighting fixture according to one of the preceding claims,
   characterized in that
   at least the locking leg (6) is provided with locking members (16), which engage behind the lamp housing (7) in the vicinity of a cruciform opening (5.2, 5.3) and the force fit of the mounting element (2) on the lamp housing (7) is secured.
9. Recessed lighting fixture according to one of the preceding claims,
   characterized in that
   the mounting element (2), without tools, can be inserted from the inner area (18) of the lamp housing (7) into one of the cruciform openings (5.1, 5.2, 5.3) and can be pressed in in the mounting position and for dismantling the built-in lamp (1) extraction is possible by pressing down the locking leg (6) and partly drawing out from the cruciform opening (5.2, 5.3).
10. Recessed lighting fixture according to one of the preceding claims,
    characterized in that,
    in the installation position, the holding element (24) constructed on the holding leg (4) engages behind or locks in the lamp housing (7) in the vicinity of the cruciform opening (5.1, 5.2).
11. Recessed lighting fixture according to one of the preceding claims,
    characterized in that
    the mounting element (2) is manufactured by a punching and bending process and is constructed in such a way that the connecting web (8) forms with the holding leg (4) an obtuse angle and the locking leg (6) forms with the connecting web (8) an angle of < 90ø.
12. Recessed lighting fixture according to one of the claims 8 to 11,
    characterized in that
    as locking members (16) are constructed at least two locking projections (16.1, 16.2) by which the mounting element (2) can be fixed in the operating position with different clamping actions.

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