Abstract:
An adjusting device for fastening an operating and/or display device on a wall, having a linear guide arrangement formed by a sliding element and a fastening element, wherein the sliding element has an attachment point for the operating and/or display device. A secure support of the operating/display element results if the fastening element or the sliding element has a pivotable seating arrangement or hinge, with a pivot axis oriented parallel with respect to the displacement direction of the linear guide arrangement. The fastening element can be supported on the wall on two supporting points, which are spaced apart in the displacement direction of the linear guide arrangement.

Description:
BACKGROUND OF THE INVENTION 
   1. Field of the Invention 
   This invention relates to an adjusting device for fastening an operating device and/or a display device on a wall, having a linear guide arrangement formed by a sliding element and a fastening element, wherein the sliding element has an attachment point for the operating device and/or the display device. 
   2. Discussion of Related Art 
   Known adjusting devices are mostly used for fastening an operating or display device on a wall of a machine housing. Support arm systems are used for this purpose, which are screwed to the wall by a connecting wall-element. The connecting wall-element has a support arm, on whose end remote from the wall a hinge is maintained. A section of a support arm is in turn connected to the hinge. This support arm section is vertically oriented and can be pivoted around its center longitudinal axis by the hinge. 
   The support arm section has a slit guidance device, in which a sliding element can be linearly displaced in the vertical direction. The operating/display device is connected to the sliding element. This adjusting device has an elaborate structure. 
   Also, such adjusting devices cannot be installed on machine housings which absorb movements in the wall area during their operation, in particular as a result of vibrations, jarring or acceleration of machine components, such as can be the case, for example, with injection-molding machinery. These movements are transmitted to the support arm system. Because of the insufficient rigidity, the large masses being moved and the great distance of the operating/display device from the wall, damages occur, so that a dependable operational use is not assured. 
   SUMMARY OF THE INVENTION 
   It is one object of this invention to provide an adjusting device of the type mentioned above but which has great rigidity and is insensitive to vibrations or movements of the fastening surface. 
   This object is achieved with a fastening element or a sliding element having a pivotable seating arrangement or hinge, whose pivot axis is oriented parallel with respect to the displacement direction of the linear guide arrangement. The fastening element can be supported on the wall on two supporting points, which are spaced apart in the displacement direction of the linear guide arrangement. 
   With this arrangement it is possible to omit an elaborate support system. A fixation of the adjusting device in place on the machine housing is provided directly by the fastening element. During this a secure fixation in place is possible by the spaced-apart support points. Due to the fact that both the linear guide arrangement and the pivoted seating arrangement are integrated into the combination including the fastening element and sliding element, a compact, space-saving construction is possible, which maintains the operating/display device tightly on the machine wall. 
   Thus a construction is realized, which fixes the operating/display device in place on the machine wall so that it is insensitive to movements. 
   In one embodiment of this invention, the fastening element can be connected to the wall directly or via the pivoted seating arrangement. These two types of fastening make possible a particularly rigid construction, because the adjusting device is limited to a few components, and the operating/display device can be maintained close against the wall. 
   A simple construction can be realized if the fastening element has a profiled segment which contains the linear guide arrangement extending in the longitudinal profile direction on which the sliding element is seated by guide elements. The profiled segment has one additional advantage, to achieve a large supporting distance, and thus a secure support with it. In particular, this can be achieved if the fastening element, embodied as a profiled segment, has at least one undercut groove extending in the longitudinal profile direction in the area of the fastening side on the wall, wherein the groove forms the support points for a support on a wall. The undercut groove allows a variable selection of the fastening point. 
   In accordance with one embodiment of this invention, the fastening element is prestressed with respect to the sliding element in the displacement direction of the linear guide arrangement by a spring element. With the spring prestressing, it is possible to compensate at least a portion of the weight of the operating/display device, so that a force-saving height adjustment is possible. 
   In this case, the adjusting device can be designed so that the spring element is embodied in the form of a fluid pressure damping device, preferably as a gas pressure damping device. The gas pressure damping device has one advantage that no damage would be caused to the surroundings in case of an accident, such as could be the case, for example, in connection with oil pressure damping devices because of the escaping oil. 
   A space-saving and structurally simple design results if the fastening element or the sliding element has a chamber in which the spring element is at least partially received. 
   In one embodiment of this invention, the fastening element and the sliding element are designed as extruded profiled segments and the linear guide arrangement is formed by profiled portions of the fastening and the sliding elements formed on it. This results in a low requirement for parts. 
   The fastening of the adjusting device on the hinge can take place either if one or several hinges are fastened on the fastening element and the hinges are coupled to fastening elements, wherein the fastening elements form the support points for fastening on the wall, or one or several hinges are fastened on the sliding element, and the hinges have fastening receivers for the operating device and/or the display device. 
   For enabling the operator to provide a dependable fixation in place of the operating/display device in the actuated state, a locking device can be assigned to the hinges, or at least to one of them, by which the hinge movement can be blocked. 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
     This invention is explained in greater detail in view of an exemplary embodiment represented in the drawings, wherein: 
       FIG. 1  shows an adjusting device in a perspective view; 
       FIG. 2  is a section view taken along line II-II shown in  FIG. 1 ; 
       FIG. 3  shows an exploded perspective view, in accordance with the device shown in  FIG. 2 , from a front; 
       FIG. 4  shows an exploded perspective view, in accordance with a device, from a rear; and 
       FIG. 5  shows an operating/display device, in a front view. 
   

   DETAILED DESCRIPTION OF THE INVENTION 
   An adjusting device with a fastening element  10  and a sliding element  20  is shown in  FIG. 1 . A detailed representation of these two elements is shown in  FIGS. 3 and 4 . As  FIG. 3  shows, the fastening element  10  is embodied as an extruded profiled aluminum segment and has a wall fastening side  11 , which has two T-shaped grooves  12  that extend parallel with and spaced apart from each other. The grooves  12  extend in the longitudinal direction of the profiled segment and are used for receiving nuts which can be continuously variably shifted in the grooves  12 . On its two facing profiled sides, the fastening element  10  has two linear guide arrangements  13 , which are embodied as grooves. A chamber  14  is arranged in the area between the linear guide arrangements  13  and is open in the direction opposite the wall fastening side  11  in the form of a slit  15  extending in the longitudinal direction of the profiled segment. A spring element  40  can be inserted into the chamber  14  through the open front face of the profiled segment. The spring element  40  is embodied as a gas pressure damping device with a piston rod  41  and a cylinder  42 . On its free end, the piston rod  41  is connected by a fastening elbow  44  to a cover  18 . The cover  18  closes off the lower front face of the fastening element  10  and has two screw receivers, through which the fastening screws  18 . 1  are introduced and screwed into longitudinally oriented screw channels  16  of the fastening element  10 . The piston rod  41  is fixed in place on the fastening element  10  without having to thus be mechanically prepared. 
   The upper front face of the fastening element  10  can be closed off by a further cover  17  which, for reducing the cost outlay for parts, has the same shape as the cover  18 . The same as the cover  18 , the cover  17  is screwed into the screw channels  16  by two fastening screws  17 . 1 . 
   The spring element  40  is connected with its cylinder  42  to the sliding element  20  via a fastening elbow  43 . The sliding element  20  is also embodied as an extruded profiled aluminum segment. On the side facing the fastening element  10 , it has two guide elements  23 , which face each other and extend in a strip-like manner in the longitudinal direction of the profiled segment. The guide elements  23  are inserted into the linear guide arrangements  13 , so that the sliding element  20  can be linearly shifted with respect to the fastening element  10  in the vertical direction. During this, the spring element  40  creates a prestress, so that the sliding element  20  must be displaced in the direction of gravity against the spring force. The spring element  40  pushes the sliding element  20  against the cover  17 , which acts as a stop. 
   As  FIG. 3  shows, the sliding element  20  has a groove  25 , which extends in the longitudinal direction of the profiled segment. The holder  43  can be screwed into a nut inserted into the groove  25 . Because the nut can be continuously variably displaced in the groove  25 , it is also possible to vary the adjustment range of the sliding element  20  defined by the lift of the spring element  40 , for example a seated or stand-up work place. 
   On the side facing away from the fastening element  10 , the sliding element  20  has two recesses  21 , which are machined out of the profiled front faces. Cylinder-shaped hinge elements  28  can be inserted into the recesses  21 . The hinge elements  28  are placed with one of the front faces  28 . 1  on a horizontal support face  21 . 1 , which delimits the recess  21 . 
   Bearing bolts  28 . 4  are used for fixing the hinge elements  28  in place, and as shown in  FIG. 3 , are screwed into a threaded channel  22 . 1 , as shown in  FIG. 2 , extending in the longitudinal direction of the profiled segment of the sliding element  20 . The hinge elements  28  are pushed with a centered through-bore onto the bearing bolts  28 . 4 . As further shown in  FIG. 4 , the upper hinge element  28  is secured against being vertically displaced on the bearing bolt  28 . 4  by a cover  30 . The cover  30  has two screw receivers  32 , into which fastening screws  33  are introduced. The fastening screws  33  are screwed into longitudinally oriented threaded channels  24  of the sliding element  20 . 
     FIG. 4  shows that the lower hinge element  28  is not supported directly on the support face  21 . 1 , but with an interspersed blocking arrangement  29 . The blocking arrangement  29  has two toothed disks  29 . 1 , which are threaded with a centered opening on the bearing bolt  28 . 4 . The toothed disks  29 . 1  have a flat and a toothed side. A toothed disk  29 . 1  is placed with the flat side against the support face  21 . 1 , and with the other against the front face of the hinge element  28 . The toothed disks  29 . 1  are screwed together with the sliding element  20  or the hinge element  28 , screw receivers  28 . 2  and  32 , by fastening screws  28 . 4 . In the assembled state, the facing teeth of the toothed disks  29 . 1  mesh. The lower hinge element  28  is also secured with a cover  30 , but in this case it has a little axial play on the bearing bolt  28 . 4 , so that the teeth are disengaged and the hinge element  28  is then freely rotatable. The axial displacement of the hinge element  28  can be produced by a hand wheel  50  which is in threaded connection with the bearing bolt  28 . 4  via a threaded element  51 . 
     FIG. 5  shows an operating/display device  60  with a holding strap  61 , on which a monitor  62 , a keyboard  63  and a touchscreen  64  are fastened. The holding strap  61  also has two fastening pins  65  matched in cross section, as well as in their arrangement and orientation, to fastening receivers  28 . 5 , as shown in  FIG. 4 , of the hinge elements  28 . 
   The fastening pins  65  can be introduced into the fastening receivers  28 . 4  and screwed together with the hinge elements  28 . 
   The connection of the adjusting device represented in the drawings to a wall, for example of a machine housing, takes place by the fastening element  10 . The wall has bores, which are aligned with the grooves  12 . Nuts are inserted into the grooves  12 , which can be aligned with the bores. It is then possible to insert screws into the bores and to screw them into the nuts. The fastening element  10  is supported over its entire length on the wall, so that a dependable fixation is provided. 
   For adjusting the operating height of the operation/display element  60 , the sliding element  20  can be linearly displaced with respect to the fastening element  10 . Ideally, in this case the spring force of the spring element  40  compensates the weight of the operating/display element  60 , so that its height adjustment can be blocked with almost no force by a handle  27  and a threaded bolt is connected, which is passed through an opening in the sliding element  20 . 
   As  FIG. 2  shows, the threaded bolt is screwed into a clamping nut  26 . 1  and clamps the sliding element  20  to the fastening element  10  when the handle  27  is pulled. 
   The setting of the angular position of the operating/display element  60  is performed by the hinge element  28  with the hand wheel loosened. The hand wheel is tightened in the desired adjusted position, and in the process the lower hinge element  28  is displaced opposite the force of gravity until the teeth of the toothed disks  29 . 1  mesh and are pressed against each other. 
   German Patent Reference 10 2005 049 874.4, the priority document corresponding to this invention, and its teachings are incorporated, by reference, into this specification.