Abstract:
A utilities connecting unit for connecting motor vans and house trailers with networks or sources of electricity, gas, water, antenna voltage and the like, is inserted into an opening in the floor of the motor van or house trailer. The connecting unit includes a rotatable and/or pivotable arm with integrated utility leads and pipelines, which can be moved between a retracted position and an extended position in such a manner, that, in the extended position, it protrudes laterally from the outline of the motor van or house trailer.

Description:
BACKGROUND OF THE INVENTION 
   The invention relates to a utilities connection for connecting motor vans and house trailers with networks or sources of electricity, gas, water, antenna, voltage and the like, with an opening in the floor of the motor van or house trailer, into which the connecting unit is inserted. 
   Various solutions have been proposed for connecting motor vans or house trailers with networks supplying electricity, water, television antenna, etc. Embodiments are known, for which a connecting unit is provided in the region of the side walls of the vehicle. This position is relatively unfavorable. On the one hand, the danger exists of forming thermal bridges, since it is necessary to tamper with the insulation layer of the walls. In view of the fact that the walls of motor vans or house trailers are relatively thin, a construction, moreover, is necessary, which protrudes relatively far to the inside and/or the outside and, if it is on the outside, is exposed to the danger of damage. Embodiments have therefore also become known, for which the connecting unit is located in the floor of the vehicle. However, since in most cases the walls of a corresponding vehicle extend downward over the ground as an apron, access to the connecting units at the underside of the floor is relatively difficult. Moreover, the connecting units tend to become dirty, so that it is troublesome and unpleasant to make the connection. 
   SUMMARY OF THE INVENTION 
   It is therefore an object of the invention to provide a utilities connection for motor vans and house trailers, which is readily accessible and to which the utilities lines can be connected relatively easily. 
   Pursuant to the invention, this objective is accomplished by a utilities connection, which is characterized in that the connecting unit includes a rotatable and/or pivotable arm with integrated utilities lines, which can be moved between a retracted and an extended position in such a manner, that, in the extended position, it protrudes laterally from the outline of the motor van or house trailer. 
   The arm of the connecting unit can be pulled out into a position, in which it protrudes beyond the outline of the motor van or house trailer. The connecting bushings, which are provided at the arm, are therefore readily visible, since they are no longer hidden behind the covered region underneath the floor and within the apron of the vehicle. 
   The arm can be extended in various ways. In accordance with a first embodiment, the connecting unit includes a rotatable carrier part, which can be shifted perpendicularly in the floor and from the lower end of which the arm protrudes horizontally. For connecting the utilities lines, the connecting unit can be pulled down vertically and, by rotating the carrier part or the arm in relation to the carrier part, the arm can be swiveled out laterally. The connecting bushings, which are at the end of the arm, are readily accessible here. 
   In accordance with a different embodiment, the connecting unit once again includes a carrier part, which can be rotated about a vertical axis. The arm can be swiveled at an outer surface of the carrier part between an essentially horizontal and a downwardly directed position. When the outer surface of the carrier part is inclined downward at an angle, it can be achieved that the end of the arm, as it is swiveled down, reaches a position outside of the outline of the vehicle. 
   In the case of a further embodiment, a carrier part, which once again can be rotated about a perpendicular axis, is provided. The arm can be swiveled about a horizontal axis in relation to the rotatable carrier part and, in this way, hinged downward into a position inclined downward at an angle. In this case, the arm may have a stop surface, which specifies the downwardly inclined position and limits the downward directed swiveling. 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
     In the following, preferred examples of the invention are described in greater detail by means of the attached drawing, in which 
       FIG. 1  shows a perspective representation of a first embodiment of an inventive connecting unit, 
       FIG. 2  shows a connecting unit of  FIG. 1  in a different position, 
       FIG. 3  corresponding to  FIG. 2 , is concerned with the connection of 220 volt electricity, 
       FIG. 4  corresponds to  FIGS. 2 and 3 , but is concerned with a different application, 
       FIG. 5  is a diagrammatic side view of an embodiment of  FIG. 4 , 
       FIG. 6  shows the embodiment of  FIG. 5  in a different operating position, 
       FIG. 7  is a partial representation of the embodiment of  FIG. 6 , 
       FIG. 8  is a further embodiment of an inventive connecting unit, 
       FIG. 9  shows the embodiment of  FIG. 8  in a different operating position, 
       FIG. 10  shows a modified embodiment of  FIGS. 8 and 9 , 
       FIG. 11  shows a further modified embodiment, 
       FIG. 12  corresponds to  FIG. 8 , but shows a vertical section, 
       FIG. 13  corresponds to  FIG. 9 , but is a vertical section, 
       FIG. 14  shows a further embodiment of the invention, 
       FIG. 15  corresponds to  FIG. 14 , but shows a different operating position, 
       FIG. 16  shows the embodiment of  FIG. 15  with a different intended use, 
       FIG. 17  shows an embodiment of  FIG. 14  in a vertical section and 
       FIG. 18  shows the embodiment of  FIG. 15  in a vertical section. 
   

   DETAILED DESCRIPTION 
   Independently of the individual embodiments, the inventive connecting unit consists of a carrier part, which is mounted firmly or movably at the underside of a motor van or house trailer, and an arm, which is movable in relation to the carrier part or with the carrier part, so that it can be shifted from a hidden position underneath the motor van or house trailer into a position protruding laterally beyond the motor van. 
   A first embodiment of the invention is shown in  FIGS. 1 to 7 . It includes an essentially cylindrical carrier part  10 , which can be shifted vertically in relation to the floor (not shown) of a motor van or house trailer. Two rings  12 ,  14  border the floor (not shown) of the motor van. It can therefore be seen that the connecting unit is shown in  FIG. 1  in the upwards pushed position. On the other hand, in  FIG. 2 , the carrier part is shown in the downwards extended position in relation to the floor. 
   A horizontal arm  16  extends from the lower end of the carrier part. In its position in the flow of the vehicle, the carrier part  10  can be rotated about a perpendicular axis, so that the arm  16  can be swiveled in a horizontal plane. Alternatively, the arm  16  can also be swiveled about a perpendicular axis in relation to the carrier part  10 , which can be shifted only vertically. 
   Arrows  18 ,  20  are intended to indicate that the connecting unit and especially its arm can be lowered downward and swiveled about a perpendicular axis. 
   At the free end of the arm  16 , there is a cover  22 , behind which the connections  24 ,  26  for water and low-voltage (12 V) can be recognized. The corresponding connecting pipelines and leads extend through the horizontal arm of box-like cross-section and the carrier part  10  and emerge above the floor of the vehicle through lines  28 ,  30 . A connecting line is labeled  32  and can be coupled in the direction of arrow  34  to the connections  24 ,  26 .  FIG. 3  corresponds to  FIG. 2  and, accordingly, has essentially the same reference numbers; however, behind the cover  22 , it has a socket  36  for 230 V. 
     FIG. 4  once again corresponds to  FIGS. 1 and 2 . However, it shows an arm  16 , which is primarily suitable for a water connection. Within this box-shaped arm  16 , there is a removable housing  36 , which is constructed in a form of a drawer and shown additionally in plan view in  FIG. 7 . In the housing, there is, to begin with, at the side facing the free end, a water connection  38 , which permits entry of water into the interior of the motor van or house trailer over a magnetic valve  40  and a pressure-reducing valve  42  over pipelines, which are not labeled individually. For the transition to the pipeline system of the motor van or house trailer, it is necessary to reduce the pressure. A magnetic valve is provided so that water with a relatively high mains pressure of 4 to 5 bar is permitted to flow in only when a tap in the interior of the motor van is actuated. 
     FIGS. 5 and 6  are sectional representations of the previously described embodiment.  FIG. 5  shows the connecting unit with the carrier part  10  raised and  FIG. 6  shows the connecting unit with the carrier part lowered and with the arm  16  swiveled out laterally. The floor of the motor van is labeled  44  and the side wall  46 . In this respect, the representation is strictly diagrammatic. A metal profile  48 , bordering the lower edge of the house trailer, has the function of an apron. A comparison of  FIGS. 5  in  6  shows that the connecting unit  10 ,  16 , can be retracted behind the apron in the inoperative position and protrudes from under the apron  48  in the use position ( FIG. 6 ). 
   Subsequently, a second embodiment of the invention is to be described with reference to  FIGS. 8 to 13 . This second embodiment of  FIGS. 8 and 9  has a block-shaped carrier part  50 , which is fastened to the underside of the motor van and has to penetrate through the floor only with one line  52 . This construction is particularly advantageous, since the carrier part does not have to be pushed into the interior of the house trailer and does not interfere here. 
   At the carrier part  50 , there is an outer surface  54 , which is inclined downward at an angle and on which an arm  56  is pivotably mounted in such a manner, that the arm  56  can be moved from a position turned upward into a horizontal position of  FIG. 8  into a position of  FIG. 9 , in which it is directed downward at an angle. The arrangement is such that the arm  56  in the downwards turned position protrudes beneath the apron  48 , as will be explained later on in detail by means of  FIGS. 12 and 13 . 
   At the free end of the arm  56 , there is once again a cover  58 , behind which the various connections are hidden. The cover  58  in the upwards turned position covers a water connection  60  in  FIG. 9 , a 230 V electricity connection  62  in  FIG. 10  and a pressure-reducing device in  FIG. 11  for reducing the mains pressure in relation to the internal pressure in the pipeline system of the vehicle. The reference numbers of  FIGS. 8 and 9  essentially are used in  FIGS. 10 and 11 .  FIG. 11  once again shows a housing  36 , which is similar to that shown already in conjunction with  FIG. 7 . 
     FIGS. 12 and 13  again illustrate the nature of mounting the connecting unit of  FIGS. 8 to 11  at the house trailer or motor van. The floor once again is labeled  44  and the side wall  46 . The lateral apron at the house trailer or motor van is labeled  48 . The carrier part  50  is fastened at the underside of the motor van or house trailer behind the apron  48  in such a manner that, by swiveling the arm  56 , this arm is pressed back behind the apron  48  or extended underneath the apron. It can be seen that valves, contained in the interior of the arm  56 , are connected with a pipeline in the carrier part  50 , which establishes a connection to the interior of the house trailer or motor van. 
     FIGS. 14 to 16  describe a third embodiment of the invention in perspective representations.  FIGS. 17 and 18  show corresponding vertical sections. 
   According to  FIGS. 14 and 15 , a carrier part  66  is provided which, for the embodiment shown, includes two disks  68 ,  70 , which can be rotated in relation to one another about a common axis. The upper disk  68  is to be fastened to the underside of the floor of the motor van. On the other hand, the lower disk  70  can be rotated in relation to the upper disk  68  about a vertical axis. Lines  72 , lead to the interior of the house trailer, as will be explained in greater detail later on by means of  FIGS. 17 and 18 . 
   An arm  76  has brackets  78  on opposite sides, of which only one is shown in  FIGS. 14 and 15 . The two brackets carry a common axis  80 , which passes transversely through the lower disk  70  of the carrier part  66 . The arm can be swiveled up and down in this way about the axis  80 . At its rear end, the arm  76  has an inclined surface  82 , which makes it possible that the arm  76  can be swiveled downward only over a limited angle, since the surface  82  functions as a stop surface. 
   The downward folded position is shown in  FIGS. 15 and 16 . These two Figures are different only owing to the fact that one shows a connection for 230 V. 
   In  FIGS. 17 and 18 , a vertical section, corresponding to the already discussed representations, is shown. The floor of the motor van is labeled  44  and its side wall  46 . At the lower edge of the side wall  46 , there is, once again, the already previously described apron  48 . It can be seen, particularly in  FIG. 18 , that the inclined surface  82  of the arm  76  functions as a stop to limit the swiveling of the arm  76 . It can also be seen that, in the pulled out position, the arm  76  reaches underneath the apron  48  and is therefore readily accessible from the outside. 
   The embodiment described last also has the advantage that an attachment completely below the floor of the house trailer is possible and that only the lines themselves have to be taken to the inside. 
   The housing  36 , which is shown in  FIGS. 7 and 11  and which contains the shutting off and reducing valves of the mains water supply, can be taken out since the water from the valve can be emptied completely only with relative difficulty and therefore, when there is a danger of frost, the housing  36  can be secured by being removed. Alternatively or in addition, heating devices may be provided, which prevent freezing of the carrier parts  10 ,  50 ,  66  and the associated arms  16 ,  56 ,  76 .