Abstract:
In the daily live electrical devices are used in connection with a plurality of applications like telephone systems, computer systems and so on. These electrical devices should be mounted to a support to keep order within such electrical or electronic systems and thus achieve systems comprising electrical devices with a reproducible output and which are reliable and easy to maintain. A multifunctional mounting bracket  1  for an electrical device  25  is proposed comprising means for mounting  7, 8, 9, 10, 13, 14, 17, 18, 19  the electrical device  25  on a first support whereby a first mounting angle between the electrical device  25  and the first support is defined and for mounting the electrical device  25  on an alternative second support whereby a second mounting angle between the electrical device and the second support is defined, and whereby the second mounting angle is different from the first mounting angle.

Description:
CROSS-REFERENCE TO A RELATED APPLICATION 
   The invention described and claimed hereinbelow is also described in European Patent Application EP No. 05109801.0 filed on Oct. 20, 2005. This German Patent Application, whose subject matter is incorporated here by reference, provides the basis for a claim of priority of invention under 35 U.S.C. 119(a)-(d). 
   BACKGROUND OF THE INVENTION 
   The invention relates to a multifunctional mounting bracket for an electrical device and more specifically to a multifunctional mounting bracket for a wireless access point device (WAP). 
   In daily life electrical devices are used in connection with a plurality of applications such as telephone systems, computer systems etc. Such electrical devices should be mounted to a support to keep order and thus achieve systems comprising electrical devices with a reproducible output and which are reliable and easy to maintain. 
   Document DE 196 32 287 A1 discloses a warning device and a method for mounting and demounting the device to a wall holder. For demounting the warning device a snap-hook of the holder is engaged in a respective recess of the warning device which must be disengaged and then a stop screw of the holder, which works as a locking device, must be unscrewed. Finally the warning device can then be separated from the holder. 
   Document US 2005/0077070A1 discloses an electrical device which can be attached to a holder in a vehicle. The holder is mounted to the inner side of the roof of the vehicle. The electrical device is fixed in the holder by means of a first and a second connection. The first connection is a hook, wherein the electrical device can pivot in relation to the holder, and the second connection is a locking device, wherein the electrical device can be locked. 
   SUMMARY OF THE INVENTION 
   The present invention relates to a multifunctional mounting bracket for an electrical device, especially for a wireless access point device (“WAP”). The mounting bracket comprises means for mounting the electrical device to a first support and—as an alternative—to a second support. According to the invention the mounting angle between the electrical device and the first support on the one hand side and the second support on the other hand side is different. The mounting angle is preferably defined as a pivoting angle between support and electrical device, whereby the electrical device is pivoted toward the support or away from the support. With other words, the mounting bracket comprises a first area of contact for contacting the first support and a second area of contact for contacting the second support, whereby the two areas of contact lie in different planes, especially in crossing and/or non-parallel planes. 
   One of the advantages of the invention lies in the fact, that the mounting bracket embodies a single and easy to use solution for mounting the electrical device in various positions and/or mounting angles. Due to the multifunctional character of the mounting bracket it is no longer necessary to sell an electrical device together with a plurality of holders in order to enable the user to mount the electrical device. By using the multifunctional mounting bracket instead of a plurality of holders no waste or loss of unused material occurs, which results in higher production costs and environmental hazards. A further advantage is that the mounting bracket can be used for stationary, quasi-stationary and/or rental purposes of the electrical device, as the electrical device can easily be mounted or demounted, whereby all mounting material needed is contained within the mounting bracket. 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
       FIG. 1   a  three-dimensional schematic view on a mounting bracket as an embodiment of the invention; 
       FIG. 2   a, b, c  the mounting bracket of  FIG. 1  during various stages of connecting with a wireless access point device for wall or ceiling installation; 
       FIG. 3   a, b, c  the mounting bracket of  FIG. 1  during various stages of connecting with the wireless access point device of  FIG. 2  for tripod installation. 
   

   DESCRIPTION OF THE PREFERRED EMBODIMENTS 
   In a preferred embodiment of the invention the first support installation embodies a parallel or substantially parallel mounting of the electrical device to the first support and the second support installation embodies a perpendicular or substantially perpendicular mounting of the electrical device to the alternative second support. According to this embodiment the mounting device enables at least two different mounting alternatives for the electrical device, preferably so that the electrical device can be mounted on a wall or a ceiling or alternatively on a tripod. Preferably, the areas of contact of the mounting bracket as defined above are perpendicular to each other. With this embodiment the most commonly used mounting alternatives are covered by the mounting bracket. 
   In a further embodiment the means for mounting comprises first fastening means allowing a fastening of the mounting bracket to the first support, first connecting means for connecting the mounting bracket with the electrical device for the first support installation, second fastening means allowing an alternative fastening of the mounting bracket to the second support and second connecting means for connecting the mounting bracket with the electrical device for the second support installation. With other words, the mounting bracket comprises two pairs of mounting means whereby the first pair is adapted for the mounting of the electrical device on the first support and the second pair is adapted for mounting of the electrical device on the second support. Preferably the two pairs and/or the fastening and/or connecting means are arranged separately on the mounting bracket and are especially arranged mechanically isolated from each other. In yet another embodiment at least one of the mounting means has a double purpose, preferably so that the functions of the first and second fastening means or the functions of the first and second connecting means are realised in a combined fastening means or combined connecting means respectively. 
   In another preferred embodiment the mounting means, preferably all mounting means, especially the fastening and/or connecting means comprise recesses in the mounting bracket. This embodiment allows a cost-effective production of the mounting bracket as the respective mounting means can be produced by a simple stamping or punching process. Preferably all mounting means of the mounting bracket are produced by a stamping process or by a combined stamping/forming process. Further it is advantageous that the mounting bracket comprises a one-piece part, especially as a one-piece bending part. 
   In another further embodiment the mounting bracket has a three-sectional or tripartite shape, whereby preferably the three sections are angled to each other, and preferably are angled to each other with or substantially with a 45° angle between the sections. In this embodiment the mounting bracket shows an U-shaped or a broadened U-shaped cross-section with the second section defining the lying leg of the U. For matter of definitions the inner side of the (U-shaped) bracket will be called concave surface and the outer side will be called convex surface. 
   In a preferred embodiment of the invention the first fastening means are arranged at the free or open end sections of the second section of the bracket and comprise protruded areas protruding from the convex surface side whereby the plain areas function as areas of contact for example for a wall or ceiling installation of the bracket. The first fastening means further comprise recesses in the plain areas for accommodating fixing means like screws or similar. Optionally the first connecting means is realised as receptacles for mounting links such as latches snap-hooks of the electrical device arranged in the second section, whereby the receptacles are adapted for accommodating the mounting links by a sliding movement of the electrical device along a first sliding directory, which is preferably parallel to the convex surface side of the second section. 
   Further optionally the second fastening means is arranged in the first section, preferably in the middle of the first section, and is embodied as a round recess such as a through or clearance hole. Preferably the convex or concave surface side of the first section works as an area of contact for example for a tripod installation of the bracket. 
   Further optionally the second connecting means is realised in the third section and is adapted for receiving the mounting links of the electrical device by a sliding of the electrical device along a second sliding direction, which is parallel to the surface of the third section and whereby the angle between the first and second sliding direction is larger than 0° and preferably about 90°. 
   In a further preferred embodiment the first and second connecting means comprise holes for accommodating pins or protrusions protruding from the mounting links of the electrical device for securing the electrical device to the mounting bracket. 
   In a further preferred embodiment a combination of an electrical device with a mounting bracket is claimed, whereby the electrical device comprises third connecting means adapted to match with the first and second connecting means of the bracket. Preferably the third connecting means comprises mounting links snap-hooks. Alternatively the electrical device comprises receptacles for mounting links or the like protruding from the mounting bracket. 
   According to a preferred embodiment the mounting bracket is fully integrated in the electrical device for the first support installation, whereby only the protruded areas of the first connecting means project from the rear side of the electrical device. Preferably the second section of the mounting bracket is parallel or substantially parallel to the rear side of the electrical device. For the second support installation the second and first section projects from the rear side of the electrical device, whereby preferably the first section of the mounting bracket is arranged perpendicular or substantially perpendicular to the rear side of the electrical device. 
   A first step for the mounting of an electrical device is to fasten the mounting bracket on a tripod or alternatively to a wall or ceiling or the like. The positioning and fixing of the electrical device to the mounting bracket is done by means of sliding the mounting bracket into the mounting links in the rear cover of the electrical device. After placing the electrical device it can only be removed from the mounting bracket by using some force. 
   Finally it is emphasized that the new mounting bracket is a single, easy to use solution for mounting an electrical device like a WAP on various supports, whereby preferably the mounting bracket is adapted to be mounted to a first support like a wall or ceiling and to a second support like a tripod. A further advantage which can be achieved is that all connecting means for connecting the electrical device to the mounting bracket are provided by the bracket or the electrical device and no extra fixing material is needed which can be lost or remains unused. 
     FIG. 1  shows a mounting bracket  1  as an embodiment of the invention, which comprises a one-piece bending part preferably made of a thin metal band or plate as a semi-finished product. Optionally the mounting bracket  1  is coated for example by powder or lacquer. 
   The mounting bracket  1  comprises two parallel bending edges  2   a  and  2   b  defining three sections I, II, III of the mounting bracket  1 , whereby section II is a central section and sections I and III are arranged as side sections. The sections I, II and III are angled to each other by an angle of approximately 45° so that the section I an III have an angle of about 90° between. Due to the bent shape the mounting bracket  1  shows a concave surface  3  and a convex surface  4  which is turned away from the viewer in  FIG. 1  and thus not shown in  FIG. 1 . 
   Viewing on the concave surface side  3  the central section II shows a rectangular or oblong shape, whereby the open or free edges  5  and  6  of the section II are slightly rounded. On each of the free edges  5  and  6  fastening means realised as protruded areas  7  and  8  with respective recesses  9  and  10  are provided. The protruded areas  7  and  8  are projecting from the convex surface side  4 , defining plane contact areas  11  and  12  on the convex surface side  4 . Viewed on the concave surface side  3  the protruded areas show a half-round shape which are open to the free edges  5  and  6 . The recesses  9  and  10  are arranged in the middle of the protruded areas  7  and  8  and are realised as oblong holes both extending parallel to each other through the mounting bracket, whereby the oblong opening of recess  9  is orientated perpendicular to the bending edges  2   a  and  2   b  and the oblong opening of recess  10  is arranged in parallel to the bending edges  2   a  and  2   b . In other words the oblong openings of the recesses  9  and  10  are orientated perpendicular to each other. 
   The section II further comprises connecting means realised as cut-outs  13  and  14  with an identical trapezoidal shape as opening, whereby cut-outs  13  and  14  arranged on a common line parallel to bending edges  2   a  and  2   b  and whereby cut-out  13  is arranged near the protruded area  5  and cut-out  14  near protruded area  6 . The parallel edges of the trapezoidal cut-outs  13  and  14  are arranged perpendicular to the bending edges  2   a  and  2   b . Both cut-outs  13  and  14  are orientated towards a common direction, whereby the trapezoidal cut-outs  13  and  14  are positioned so that the respective shorter of the parallel edges of the cut-outs  13  and  14  head towards the common direction. Adjacent to the cut-outs  13  and  14  in the common direction and also on the common line through holes  15  and  16  are positioned. 
   Section I viewed from the top, i.e. viewed on the concave surface side  3 , shows a flat topped half-round shape. In the middle of section II a clearance hole  17  is provided for accommodating a pin or a threaded bolt of a tripod. 
   Section III comprises two receptacles realised as slots  18  and  19  which extend parallel to each other and perpendicular to the bending edges  2   a  and  2   b . The distance between the slots  18  and  19  is the same as between the two shorter edges of the cut-outs  13  and  14 . Adjacent to the slots  18  and  19  through-holes  20  and  21  are positioned in an analogous manner as the through-holes  15  and  16  in relation to the cut-outs  13  and  1 . 4 . Section III is sub-divided into two sub-sections  22  and  23  by means of a central cut-out  24 , so that the two-subsections  22  and  23  can be bent during connecting with the WAP ( FIG. 3   a, b, c ) independently from each other. 
     FIGS. 2   a  to  2   c  show a sequence during which the mounting bracket  1  is connected with a WAP (wireless access point device)  25 . 
   The rear side of the WAP  25  shows a three-sectional or tripartite shape corresponding to the mounting bracket, whereby the first section  26  and the third section  27  are realised as a recess for the sections I and II respectively of the mounting bracket  1 . The second section  28  comprises two snap-hooks  29  and  30  which are adapted to match with the cut-outs  13  and  14  of the mounting bracket. 
   In a first step the mounting bracket is fastened to a wall or a ceiling, whereby fixing means, for example screws or the like, are guided through the recesses  9  and  10  and fixed into the wall or ceiling, so that the areas of contact  11  and  12  of the mounting device are in direct contact with the wall or ceiling. 
   In a second step the WAP  25  is attached to the mounting bracket, whereby the snap hooks  29  and  30  are guided through the cut-outs  13  and  14  with a movement perpendicular to the convex surface side  3  of section II of the mounting device. This step is shown by the  FIGS. 2   a  and  2   b.    
   In a third step, which is illustrated by  FIGS. 2   b  and  2   c , the WAP  25  is slid in the above-introduced common direction, so that the snap-hooks  29  and  30  snap over the shorter edges of the cut-outs  13  and  14  thereby securing the WAP  25  to the mounting bracket  1  and thus mounting the WAP  25  to a wall or ceiling or—general speaking—to a plane support surface. In order to strengthen the snap-hook connection a pin or a protrusion is arranged on the inner side of each snap-hook  29  or  30 , which snaps in the through hole  15  or  16  respectively. In the connected state as shown in  FIG. 2   c  the mounting bracket  1  is fully integrated in the body of the WAP  25 . 
   For removing the WAP  25  some force must be used in order to overcome the snap-hook connection by pulling or sliding the WAP  25  in opposite direction to the common direction. 
     FIG. 3   a  to  c  are a sequence to illustrate the way of connecting mounting bracket  1  and WAP  25  for a tripod installation of the WAP  25 . 
   In a first step the mounting bracket  1  is fastened to a (not-shown) tripod by guiding and fixing a fixing means like a pin or threaded bolt of the tripod through the clearance hole  17 . In a second step the rear side of the WAP  25  is brought in contact with the convex surface side  4  of section III so that rear side and convex surface side  4  of section III are arranged in parallel. In a third step the WAP is slid in a sliding direction parallel to the extension of the slits  18  and  19  of the mounting bracket  1 , whereby the snap-hooks  29  and  30  are slid into the slits  18  and  19  so that the mounting links of the snap-hooks  29  and  30  snap over the subsections  22  and  23  respectively. Again the pins or protrusions arranged on the inner side of the snap-hooks  29  and  30  engage in the respective through holes  21  and  22  of section III. In the connected state as shown in  FIG. 3   c  the section III of the mounting bracket  1  extends perpendicular to the rear side of the WAP  25 . 
   As demonstrated with the  FIG. 2   a  to  c  and  3   a  to  c  the mounting bracket  1  is a one-piece part which can be used as a holder for the WAP  25  without needing further mounting material. WAP  25  and mounting bracket  1  can be combined in two different ways: For wall or ceiling installation the WAP  25  is in contact with the concave surface  3  of the mounting bracket  1  and the wall or ceiling is in contact with areas of contact  11  and  12  on the convex surface side  4  of the mounting bracket  1 . For tripod installation the rear side of the WAP  25  I is in contact with the convex surface side  4  of the mounting bracket  1  and areas of contact for contacting the tripod is provided in section I on both sides of the mounting bracket  1 .