Fastening device

p0001The invention relates to a device for fixing functional units receiving, provided with a supporting edge support trays and the like, in particular for lighting, ventilation systems, air-conditioning units and the like, in the recesses of ceilings, walls or other bearing surfaces.

p0002In connection with the fixing of built-in lights and similar elements in corresponding recesses of ceilings or walls, it is known to press the respective functional elements of the receiving trays or tray-like parts in the desired position, wherein a support edge against the wall, and then a clamping means make clamping elements. However, these fastening normally requires, and in particular during the assembly corresponding downlights a partial disassembly of the assembly, as otherwise no accessibility of the individual clamping elements is given. Especially with the installation of lights, this is disadvantageous because the often sensitive reflectors removed and must be reinstalled after fixing the tub, which again generally leads to contamination of the reflectors and also damage to them.

p0003Object of the invention is to provide a fastening device of the type described, which allows a perfect and accurate mounting without previously required partial disassembly of functional units and especially a perfect attachment also ensured when the recess for receiving the respective unit walls delimiting unequal own strength.

p0004This object is achieved according to the invention is essentially characterized in that each point on the outside at least one rocker arm pivotally mounted in the region of two opposing trough edges and between at least located substantially within the peripheral contour of the carrier tray release position and a clamping position is adjustable by means of a transmission to the when disposed outside of and coupled to an actuating unit, which actuator is accessible from the tub interior side.

p0005Although each rocker arm could be actuated individually via a control unit, so it is preferably provided to actuate two provided on opposite edge regions rocker arm via an adjusting unit with associated gearbox compound wherein is always essential that the when the outside effective control unit operable from the tub interior side is, as is achieved in this way that to be fixed in each case in a recess unit can be simply inserted into the recess and then on the proposed actuators virtually a stress occurs in the form of a blind assembly, without any partial dismantling a safe and precise seating guaranteed.

p0006Each rocker arm is preferably designed as a two-armed lever with a release lever part and a connectable to the transmission Anlenkhebelteil, wherein the clamping lever part is bent shaped, whereby it can be ensured in a space-saving arrangement, that in the release position not interfering Kipphebelüberstand beyond the circumferential contour of the respective tub occurs and a proper tensioning is ensured even if the recess for receiving the respective unit bounding walls have different thickness.

p0007The transmission between the respective actuating unit and the rocker arms is always executed as a flat gearbox and comprises according to the preferred embodiment of the invention, a rope whose ends are connected to the Anlenkhebelteilen two mutually opposite rocker arm and that is guided between the two pivot points on a three-point linkage system, whose average deflection on the actuator or the actuator is adjustable. By the adjustment of the central deflecting element results in a shortening of the effective cable length and thus pivoting of the rocker arm, which has the required tension effects.

p0008The three-point linkage system consists in particular of two mutually spaced, wandungsfesten and semi-annular guiding and deflecting and an interposed, an oppositely curved guide having movable deflector, wherein the cable is loosely dragging out by the deflection system.

p0009Due to this feature, it is possible practically to arrange the movable deflection element operable adjusting unit at an arbitrary, in each case most appropriate position between the two associated rocker arms, as a result of the abrasive cable guide the positioning of the actuator has no effect on the toggle actuation, and thus their tension. This affects, for example, advantageous in recessed lighting, because in the context of asymmetric reflectors in this way, the operable from the tub interior side actuating element can be provided on the functionally best position entailed and to ensure that no impairment of the reflector surfaces occurs.

p0010According to a further embodiment of the invention is the rope tension causing movable deflecting element is connected via a threaded portion with a rotatably supported perpendicular to the tank bottom arranged screw whose actuating head is located in the trough in the region of a trough side wall. This arrangement is characterized in that it is extremely compact and reliable.

p0011When the three-point linkage system is not directly integrated in the respective side wall or cheek, then this three-point linkage system can be designed as an independent component, which can then be inserted into a corresponding recess in a side wall or beam and fixed clipped for example. This embodiment is particularly advantageous when the tub and optionally the reflector of a luminaire are designed as sheet metal member and the three-point linkage system consists of a plastic unit.

p0012A significant economic savings are realized in that the housing and reflector may be formed as a unit, in the case of plastic one-piece assembly is possible and in a pure metal construction, the parts can be joined together by welding, so that in turn results in a unit.

p0013Further advantageous embodiments and features of the invention are specified in sub-claims and are explained in connection with the description of an embodiment.

p0014The invention is explained with reference to the drawing, for example; in the drawings:<dl id="dl0001"><dt>figure 1</dt><dd>a schematic side view of a device equipped with the fastening device according to the invention light cover,</dd><dt>figure 2</dt><dd>a plan view of the interior of the lamp of Figure 1, and</dd><dt>figure 3</dt><dd>a sectional view according to the line AA of FIG. 2</dd></dl>

p00151 shows a carrier tray 1 a recessed ceiling luminaire, said pan 1 is provided with a circumferential supporting rim 2, which rests in the installed state of the respective ceiling or wall 5 and ensures a flush termination.

p0016Preferably at opposite outer walls of the present case rectangular shaped in cross-section carrier tray 1 rocker 3 are peripherally pivoted, which are pivotable between a release position, shown in solid lines, and a clamping position, which is represented by dashed lines. In the release position, the rocker arm 3 inside the peripheral contour of the carrier tray 1 and abut against a stop 12, so that this tray can be freely inserted into the corresponding wall or ceiling section.

p0017The pivot bearing 4, the rocker arm 3 are preferably directly molded to the side wall of the carrier tank and formed so that the rocker arm 3 can be snapped on to these pivot axes 4, so that a simple and quick mounting is ensured. This embodiment is especially suitable if the support pan 1 and the corresponding side cheeks, on which the pivot bearings 4 are integrally formed, are made of plastic.

p0018The rocker lever 3 be actuated via a transmission 6, which must, upon actuation of an adjusting unit 7 ensure the pivoting of the rocker arm and may be configured as a flat and pinion gear, but preferably consists of a rope drive with rope 15, the via fittings 14 with a Anlenkhebelteil 10 two-armed rocker arm 3 is connected.

p0019The rocker 3 are biased into their release position, in a particularly simple manner by means of a rubber band 11, which is suspended on lugs 16 of the respective clamping lever portion 9 and held in a Wandungslasche 17 of the carrier tray. 1

p0020The rope 15 is spaced apart by a three-point linkage system of two, wandungsfesten and in particular semi-annular guiding and deflecting elements 12 and an interposed, made a counter-curved guide having movable deflector 13 by loose abrasive, which is synonymous with the fact that this three-point linkage system can be located at any point between the two rocker arms 3 and always fulfills its function in the same way.

p0021The actuator 8 for the adjustable deflector element 13 extends perpendicular to the tank bottom and is accessible from the inside of the tub forth.

p0022Figure 2 shows a plan view, partially sectioned on the emission side of the lamp with an asymmetrically designed in the present case the reflector 24 and associated lamps 22, which is received in a socket 25th You can see in this diagram also the starter holder 26 with associated starter 27 and a prismatic cover 23 for the light source.

p0023Substantially in connection with the fastening apparatus is that the actuating elements for the fastening device, namely, the screws 8 in the edge region of the luminous means, and thus easily accessible and the function of the lamp are arranged disturbing in any way.

p0024This also illustrates the sectional view according to the section line AA shown in FIG. 3

p0025The sectional view of Figure 3 shows, which consists of a screw actuator 8, which extends through a guide chamber 29 and rotatable in this and held axially fixed by a securing ring 30 is. This screw 18 is a polygonal nut 28 is attached, which is rotatably connected with the adjustable deflection or tensioning element 13, through which the cable 15 is guided, as can be seen in FIG. 1

p0026By operating the screw 8, the head of which is accessible from the tub interior side, the deflection or tensioning element 13 is moved in the longitudinal direction, and screws so that the rope 15 is operated for pivoting the rocker arm 3rd

p0027The transfer chamber 29 is expediently designed so that it can serve as a carrier for the lamp holder 25 simultaneously.

p0028It is apparent that any dismantling of functional elements is provided with a fixing device according to the invention required when mounting a downlight, but that the entire lamp can be inserted into the corresponding receiving recess, after which it is only then necessary to tighten the screws 8, resulting in a flawless and flush wall fixing or clamping on the rocker arm. In the case of the embodiment described then the prism cover is only 23 to install by a Aufschnappvorgang, after which the assembly is completed. During the entire assembly while there is no need to touch the luminaire reflector.

p0029Of particular advantage is also that when the fastening system according to the invention a very flat construction is allowed and that the fastening principle described can be used regardless of whether a version with reflector pan or cheeks in plastic or at least partially carried out in sheet metal.

p0030In economic terms, the possible one-piece design of reflector and tub or cheeks is very beneficial, and it is no problem, in the case of light back to mount the ballast, as this gear is also available through the problem-free operable attachment unit by simply removing the luminaire.

p0031One of the lamps assigned prism cover is preferably fixed by means of a flexible band to the housing, so that when relamping all safety aspects into account is supported.

LIST OF REFERENCE NUMBERS

p0032<dl id="dl0002" compact="compact"><dt>1</dt><dd>support vessel</dd><dt>2</dt><dd>supporting edge</dd><dt>3</dt><dd>rocker arm</dd><dt>4</dt><dd>Rocker pivot</dd><dt>5</dt><dd>Supporting wall (eg ceiling)</dd><dt>6</dt><dd>gear</dd><dt>7</dt><dd>Locking unit</dd><dt>8th</dt><dd>actuator</dd><dt>9</dt><dd>Clamping lever part</dd><dt>10</dt><dd>Anlenkhebelteil</dd><dt>11</dt><dd>Return member</dd><dt>12</dt><dd>Stationary Umlenke lement</dd><dt>13</dt><dd>adjustable deflector</dd><dt>14</dt><dd>fitting</dd><dt>15</dt><dd>rope</dd><dt>16</dt><dd>flap</dd><dt>20</dt><dd>when soil</dd><dt>21</dt><dd>Kipphebelanschlag</dd><dt>22</dt><dd>Lamp</dd><dt>23</dt><dd>prismatic cover</dd><dt>24</dt><dd>Asymmetrical reflector</dd><dt>25</dt><dd>light socket</dd><dt>26</dt><dd>Start recording</dd><dt>27</dt><dd>starter</dd><dt>28</dt><dd>Polygonal nut</dd><dt>29</dt><dd>guide chamber</dd><dt>30</dt><dd>circlip</dd></dl>