Abstract:
The invention relates to an armrest subassembly for the door of a motor vehicle, which can be mounted in a motor vehicle having a longitudinal vehicle axis and a vertical vehicle axis. The inventive armrest subassembly comprises an arm support whose height can be adjusted along the vertical axis of the motor vehicle and a guide device enabling the support to be guided along the vertical axis. The guide device is provided with an elongate guide element ( 1   a,    43 ) along the direction of adjustment (z) of the arm support ( 2 ), said guide element enabling the arm support ( 2 ) to be guided in such a way that the forces exerted upon the arm support ( 2 ) are transmitted by the elongate guide element ( 1   a,    3 ) into a bearing door element ( 5,50 ) and the arm support ( 2 ) is prevented from moving in the longitudinal direction (x) of the motor vehicle.

Description:
DESCRIPTION  
         [0001]    The invention relates to an armrest subassembly for a vehicle door for installation in a motor vehicle which has a vehicle longitudinal axis (which when the vehicle is being driven straight corresponds to the driving direction) and a vertical vehicle axis (which runs perpendicular to the vehicle longitudinal axis), according to the preamble of patent claim 1.  
           [0002]    An armrest subassembly of this kind comprises an arm support which is vertically adjustable along the vertical vehicle axis, and a guide device by means of which the armrest is guided along the vertical vehicle axis.  
           [0003]    An armrest subassembly of this kind is known from DE 40 02 242 A1. The guide device described there comprises two parallel guide rails extending in the adjustment direction of the arm support and spaced from each other in the vehicle longitudinal direction for guiding the arm support.  
           [0004]    The object of the invention is to provide an armrest subassembly of the kind mentioned at the beginning which is characterised by a novel guide device.  
           [0005]    According to this the guide device has just one guide element which extends longitudinally along the adjustment direction and with which the arm support is guided in the adjustment direction so that forces acting on the arm support in the vehicle longitudinal direction are introduced through the guide element into the supporting door element and movement of the arm support in the vehicle longitudinal direction is prevented.  
           [0006]    The adjustment of the arm support need not thereby take place exactly parallel to the vertical vehicle axis. Rather it is decisive that the adjustment movement comprises a substantial component along the vertical vehicle axis so that the arm support is raised or lowered during an adjustment movement.  
           [0007]    The just one guide element need not be a one-piece guide element. Rather the guide element can also consist of several sections arranged in succession along the adjustment direction of the arm support. It is only essential that seen along the vehicle longitudinal axis a guide element runs along the adjustment direction of the arm support only at one point. The guide element thus does not comprise several separate guide elements spaced from each other along the vehicle longitudinal direction, but—viewed in the vehicle longitudinal direction—only one cohesive guide area. This is designed so that forces acting on the arm support in the vehicle longitudinal direction, which occur for example when supporting an arm, are introduced into a supporting door element without causing undesired displacement of the arm support in the vehicle longitudinal direction or damage to the armrest subassembly.  
           [0008]    In addition the elongated guide element can be compensated to prevent the arm support from tilting about an axis (horizontal vehicle transverse axis) running perpendicular to the door plane, i.e. the plane spanned by the vehicle longitudinal axis and the vertical axis.  
           [0009]    The arm support can be fixed on a height adjustable holder, e.g. in the form of a support plate and thus can be vertically adjusted together same.  
           [0010]    The guide element can be formed in particular through a preferably tubular shaped post which can be for example hollow cylindrical or formed as a profiled part (profiled rail). With a hollow cylindrical design of the guide element this can enable a certain swivel action of the arm support about the extension direction of the guide element.  
           [0011]    In a preferred embodiment of the invention the elongated guide element is fixed on a supporting door element; it can however be associated with the vertically adjustable arm support and can be connected thereto.  
           [0012]    The elongated guide element is allocated at least one guide member which is displaceable relative thereto whereby the desired adjustment of the arm support can be produced through the relative movement of guide element and guide member.  
           [0013]    In particular two guide members spaced from each other along the extension direction of the guide element can be provided displaceable relative to the guide element. The two guide members are thereby arranged so that they have the greatest possible distance along the extension direction of the guide element within the existing structural conditions. As an alternative just one guide member can be provided which has the greatest possible length along the extension direction of the guide element within the existing structural conditions.  
           [0014]    In each case it is to be achieved that the guide element on the one hand and the at least one guide member on the other still interact at the widest spaced points possible along the extension direction of the guide element in order to enable an optimum torque compensation which prevents the arm support from tilting.  
           [0015]    Depending on the design of the elongated guide element the guide members can be formed by guide bushes, tapered areas of a guide channel or by profiled members.  
           [0016]    The guide members are preferably fixed relative to the arm support corresponding to the preferred fixing of the guide element on a supporting door element, e.g. by fixing on the vertically adjustable holder which takes up the arm support.  
           [0017]    When using two guide members these are preferably mounted along the vertical vehicle axis so that they extend on one edge of the holder. When using only one guide member this extends over the entire extension of the holder along the vertical vehicle axis.  
           [0018]    In addition next to the at least one elongated guide element means can be provided which restrict or prevent swivel movement of the arm support about the vertical vehicle axis depending on whether a restricted swivel movement is to be permissible or whether any swivelling about the vertical vehicle axis is to be ruled out.  
           [0019]    These additional means can be formed by supporting areas which are arranged so that they counteract swivelling of the arm support relative to the supporting door element from a predeterminable swivel angle. The supporting areas are preferably arranged spaced from each other in the vehicle longitudinal direction either side of the elongated guide element.  
           [0020]    The supporting areas can be formed for example by projections which are provided between the supporting door element and the arm support, namely in particular spaced out from each other in the vehicle longitudinal direction, either side of the elongated guide element. When using a vertically adjustable holder for holding the arm support these projections are preferably located between the vertically adjustable holder and the supporting door element whereby the projections can be provided, for example moulded in one piece in particular on the supporting door element.  
           [0021]    According to another variation the supporting areas are formed by two longitudinal guides spaced from each other in the vehicle longitudinal direction and arranged either side of the guide element, along which the arm support or its holder and the supporting door element are coupled together. These longitudinal guides can in turn be formed by a guide channel and an associated guide rod whereby the guide channel can be arranged e.g. on the holder of the arm support, and the guide rod can be mounted on the supporting door element.  
           [0022]    It is decisive that the additional supporting areas are provided to prevent a tilting movement of the arm support about the vertical vehicle axis. The introduction of forces acting in the vehicle longitudinal direction into the supporting door element takes place on the other hand solely through the just one elongated guide element provided for this, i.e. that the additional supporting areas are formed so that with an ordinary trouble-free operation of the arm support they do not take up and transfer any forces acting in the vehicle longitudinal direction, but only tilting movements relative to the vertical vehicle axis.  
           [0023]    In a further preferred development of the invention elastic means are provided on the adjusting mechanism of the arm support to prevent rattling. 
       
    
    
       [0024]    Further features and advantages of the invention will now be explained with reference to an embodiment illustrated in the drawings in which:  
         [0025]    [0025]FIG. 1 a  shows a rear view of a door inner trim in perspective view;  
         [0026]    [0026]FIG. 1 b  shows a front view of the door inner trim of FIG. 1 a  in a perspective view;  
         [0027]    [0027]FIG. 1 c  shows a front view of the door inner trim according to FIG. 1 b  with a vertically adjustable arm support;  
         [0028]    [0028]FIGS. 2 a  and  2   b  show two different perspective views of a motor vehicle door with a vertically adjustable armrest;  
         [0029]    [0029]FIGS. 3 a  and  3   b  show two perspective views of a motor vehicle door according to FIGS. 2 a  and  2   b  in an assembled state in which a guide device of the arm support can be seen;  
         [0030]    [0030]FIG. 3 c  shows a detailed view of the guide device of FIGS. 3 a  and  3   a  and  3   b;    
         [0031]    [0031]FIG. 4 a  shows a cross-section through a door inner trim with an arm support fixed on a height adjustable holder;  
         [0032]    [0032]FIG. 4 b  shows a longitudinal section through the drive and guide means of a vertically adjustable arm support according to FIG. 4 a;    
         [0033]    [0033]FIG. 4 c  shows an enlarged section of the armrest area according to FIG. 4 a;    
         [0034]    [0034]FIG. 5 a  shows a perspective view of a guide device for a vertically adjustable arm support which has in addition to a central elongated guide element two guide rails as anti-rotation locks;  
         [0035]    [0035]FIG. 5 b  shows a perspective rear view of the guide device of FIG. 5 a;    
         [0036]    [0036]FIG. 5 c  shows a sectional view of the guide device of FIGS. 5 a  and  5   b;    
         [0037]    [0037]FIG. 6 shows a diagrammatic view of the structural space in a motor vehicle door which serves to hold an armrest;  
         [0038]    [0038]FIGS. 7 a  to  7   e  show different illustrations of a guide device for a vertically adjustable arm support which has just one elongated guide element in the form of a tubular guide post;  
         [0039]    [0039]FIG. 8 shows a cross-sectional view through a guide device of the type shown in FIGS. 7 a  to  7   e  whereby means are additionally provided for restricting tilting of the arm support about the vertical vehicle axis;  
         [0040]    [0040]FIGS. 9 a  to  9   c  show sectional views of three different embodiments of a guide post extended along the vertical vehicle axis as well as the relevant guide member;  
         [0041]    [0041]FIGS. 10 a  and  10   b  show cross-sections of two different embodiments of an anti-tilt lock for an arm support. 
     
    
       [0042]    [0042]FIGS. 1 a  and  1   b  show a rear view (seen from the door inside panel of a vehicle door) and a front view (seen from the interior space of a vehicle) of a door inner trim  1  with which the door inside plate of a vehicle door is covered and lined in respect of the door interior space. The door inner trim  1  has on the back two spacer elements D which are supported by their end side facing away from the door inner trim on the door inside plate or on a base plate connected to the door inside plate when the door inner trim  1  is fixed on the door inside plate. The distance between the door inner trim and the door inside plate is hereby fixed. The spacer elements D are designed hollow cylindrical so that fixing screws can pass through same to fix the door inner trim on the door inside plate.  
         [0043]    The door inner trim  1  furthermore has a free space F which permits an arm support to be fitted. Underneath the free space F there are fixing points B for fixing a decor strip on the door inner trim  1 .  
         [0044]    [0044]FIG. 1 c  shows the door inner trim  1  in a view according to FIG. 1 b  after fixing an armrest subassembly with an arm support A which has a indent handle G. Furthermore in front of the arm support A is a switch block S with which electrical function components of the vehicle such as e.g. the arm support itself, as well as the electric window lifter or electric seat adjuster devices can be operated.  
         [0045]    A decor strip Z of the door inner trim  1  is fixed underneath the arm support A and overlaps with a section of the arm support A which extends parallel thereto. Underneath the décor strip Z is a card tray K and speaker cover L.  
         [0046]    [0046]FIGS. 2 a  and  2   b  show in different views each perspectively a vehicle door which is lined in respect of the vehicle interior with a door inner trim and which has a vertically adjustable arm support  2  which forms together with the door inner trim  1  a door inner trim module with adjustable height for the arm support. The surface  10  of the door inner trim  1  extends substantially in the door plane, i.e. in a plane which is defined by the vehicle longitudinal axis x as well as the vertical vehicle axis z.  
         [0047]    The arm support  2  has a supporting area  20  extending in the vehicle longitudinal direction x and extending substantially perpendicular to the door plane, as well as a trim area  21  which projects down from the supporting area  20  along the vertical vehicle axis z and which overlaps with a section of the door inner trim  1  running parallel thereto. The trim area  21  need thereby not run exactly parallel to the vertical vehicle axis z; even with a slight incline of the trim area  21  relative to the vertical vehicle axis z the former still extends along the latter. The same applies correspondingly for the overlapping section of the door inner trim  1 . The arm support  2  thus has the shape of an inverted L whereby the supporting area  20  forms the one arm and the trim area  21  forms the other arm of the L-shaped arm support  2  and the trim area  21  extends along the vertical vehicle axis and thereby its free end faces away down from the supporting area which extends substantially horizontally.  
         [0048]    Seen from the inside of the vehicle an integrated handle indent  22  is provided in the arm support behind the supporting area  20  of the arm support which can replace a grab handle and extends in the vehicle longitudinal direction x substantially over the entire length of the arm support  2 . The supporting area  20  of the arm support runs substantially horizontal i.e. in a plane which is defined by the vehicle longitudinal axis x as well as the vehicle transverse axis y which runs perpendicular to the door plane. This supporting area  20  serves to support the under arm of the vehicle occupant and to adapt to the requirements of different vehicle occupants is vertically adjustable along the vertical vehicle axis z, namely together with the arm support  2  as a whole.  
         [0049]    In order to operate the height adjustment of the arm support  2  an operating element  3  is provided which seen in the vehicle longitudinal direction x (drive direction of the corresponding vehicle when driving straight) is mounted in front of the supporting area  20  of the arm support  2  and can be comfortably gripped and operated by the hand of a vehicle occupant whose under arm is resting on the supporting area  20 . An electric switch can be operated by means of this electric operating element and activates an electric adjusting device for adjusting the height of the arm support  2  and thus in particular the supporting area  20  of the arm support  2 .  
         [0050]    [0050]FIGS. 3 a  to  3   c  show a vehicle door corresponding in structure to FIGS. 2 a  and  2   a , namely in a partially mounted state in which the adjusting device for adjusting the height of the arm support can be seen. In order to generate the adjusting force an electric drive motor  41  is provided and has a dedicated electronics control unit  40  for controlling the adjusting speed as well as where necessary the shock-free approach of the arm support as well as to ensure an anti-jamming protection. The drive motor  41  drives a spindle gearing  41   a  which transfers the adjusting force of the drive motor  41  to a support plate  44  on which the vertically adjustable arm support can be fixed.  
         [0051]    In order to guide the support plate  44  and thus the arm support during an adjustment movement along the vertical vehicle axis there is an elongated guide element  43  in the form of a guide post which extends along the adjusting direction of the arm support (slightly inclined to the vertical vehicle axis z) and on which the support plate  44  is guided so that it is possible to prevent a displacement of the support plate  44  and thus the associated arm support  2  in the vehicle longitudinal direction x (drive direction of the corresponding vehicle during straight driving) as well as a tilting movement of the arm support  2  about the horizontal vehicle transverse axis y running perpendicular to the door plate (the plane formed by the vehicle longitudinal axis x and the vertical vehicle axis z).  
         [0052]    The guide of the support plate  44  on the guide post  43  thereby takes place through a guide channel provided on the support plate  44  and on which two guide members  43   a ,  43   b  are formed in the form of tapered areas of the guide channel. These two tapered areas  43   a ,  43   b  are provided at each one end of the continuous guide channel i.e. on one side on the upper edge along the vertical vehicle axis z and on the other side on the lower edge of the support plate  44 . Tilting moments introduced through the arm support and the support plate  44  connected thereto about the vehicle transverse axis (y-axis) are hereby supported in the best possible way. In order also to support tilt moments about the vertical vehicle axis (z-axis) two side guide rails  42   a ,  42   b  are additionally provided which are spaced out from each other either side of the central guide post  43  along the vehicle longitudinal axis x. The support plate  44  is in engagement with these through a pair of sliders  45   a  and  45   b.    
         [0053]    [0053]FIG. 4 a  shows a cross-section through a vehicle door according to FIGS. 2 a  and  2   b . The door inside skin of the vehicle door is formed by a door inside plate  5  with a large surface area recess which is covered by an assembly support  50 . A number of door components such as e.g. an electric window lifter, door lock, speaker system, side air bag and the like can be prefitted on such an assembly support  50  away from the vehicle door and then fixed as a completely pre-assembled subassembly (door module) on the corresponding vehicle door or its inside plate  5 .  
         [0054]    In the present case the assembly support  50  also supports the adjusting mechanism for the height-adjustable armrest  2  which has a drive motor  41  as drive unit. The drive motor  41  drives an adjusting mechanism which will be described below in further detail with reference to FIGS. 4 b  and  4   c  and with which a holder  44  of the arm support  2  is adjustable along the vertical vehicle axis z. The holder comprises a support plate which is mounted behind the door inner trim  1 , namely both behind a lower part  100   a  and also an upper part  100   b  of the inside trim, as well as a connecting section  44   a  protruding therefrom which extends in the region between the free ends O, U of the door inner trim. The arm support  2  is fixed there on the holder  44  in suitable manner.  
         [0055]    Between the support plate and the connecting section  44   a  of the holder  44  of the arm support  2  extends a channel-like recess  44   b  into which the upper part  100   b  of the door inner trim  1  projects at the top when the arm support  2  is adjusted. This prevents the holder  44  from colliding with the door inner trim  1  during height adjustment.  
         [0056]    At the top the door inner trim closes with a ledge trim  14 . The upper section  10   a  of the lower part  100   a  of the door inner trim  1  which becomes partially exposed when the arm support is raised by its trim area  21  is covered by a decor panel  12 .  
         [0057]    According to FIGS. 4 b  and  4   c  in order to transfer the adjusting force from the drive motor  41  to the vertically adjustable holder  44  a spindle gearing is connected to a rotatable spindle  410  driven by the drive motor, and to a spindle nut  411  which is connected rotationally secured to the holder  44  and which is displaceable along the vertical vehicle axis z, with the nut engaging round the spindle  410  and engaging with same.  
         [0058]    The holder  44  is guided along the vertical vehicle axis along a central guide post  43  whereby two side guide rails  42   a ,  42   b  are provided additionally as an anti rotation anti tilt lock either side of the central guide post  43  whereby the holder  44  is mounted displaceable on the guide rails by means of sliders.  
         [0059]    The drive motor  41  can further be allocated an electronic control unit for controlling the adjusting speed for shock-free approaching the end positions of the arm support  2  as well as where required for ensuring anti-jamming protection.  
         [0060]    [0060]FIGS. 5 a  to  5   c  show in greater detail a guide device for an arm support  2  which is vertically adjustable along the vertical vehicle axis z and which is connected to a vertically adjustable support plate  44 . For this the arm support  2  is fixed on a connecting section  44   a  protruding away from the support plate  44 .  
         [0061]    A guide channel  48  extends in the support plate  44  along the vertical vehicle axis z (but not exactly parallel to same, rather slightly inclined) whereby the guide channel has at each of its upper and lower end (corresponding to the upper and lower edge of the support plate  44  in the vehicle longitudinal direction z) a guide area  43   a ,  43   b  (guide members) formed by a tapered area of the guide channel  48 . The support plate  44  is guided by these guide members or guide areas  43   a ,  43   b  on a guide post (see FIGS. 3 a  to  3   c ) which likewise extends along the vertical vehicle axis and which is connected to a supporting door element, e.g. a door inner skin of a vehicle. In the region of the guide members or guide areas  43   a ,  43   b  the guide channel is adapted to the contour of the associated guide post so that the guide members or guide areas  43   a ,  43   b  engage round the guide post practically free of play. The dimensions are selected so that on the one hand movement of the support plate  44  along the guide post is possible with slight friction and that on the other hand movement of the support plate  44  in the vehicle longitudinal direction x or a swivel movement of the support plate about the vehicle transverse axis y is prevented and forces causing such movements of the support plate  44  are introduced through the guide areas  43   a ,  43   b  and the associated guide posts into a supporting door element.  
         [0062]    The aforementioned forces can occur for example as a person leans on the arm support whereby increased forces and torques can occur in particular if the arm support is used not simply just as a support for the underarm during driving but also for other purposes, e.g. if a vehicle occupant kneels on the arm support.  
         [0063]    Furthermore the support plate  44  has two channels  47   a ,  47   b  spaced from each other in the vehicle longitudinal direction x and arranged either side of the central guide channel  48  into which a guide rail  42   a ,  42   b  is guided to serve as an anti-rotation lock. Also these further guide rails  42   a ,  42   b  are each fixed on a supporting door element of the vehicle door. These guide rails  42   a ,  42   b  are held rattle-free in the associated guide channels  47   a ,  47   b  by means of elastic elements moulded on the support plate  44 .  
         [0064]    The two guide rails  42   a ,  42   b  are guided relative to the vehicle longitudinal direction x with play in the associated channels  47   a ,  47   b  of the support plate  44  so that external forces which act along the vehicle longitudinal axis x, or external torque acting about the vehicle transverse axis y are introduced through the central guide channel  48  and the associated guide posts into a supporting door element and thus the door or vehicle body. Over-specifying the system is thereby also avoided.  
         [0065]    The two additional guide rails  42   a ,  42   b  serve to divert external torque which acts about the vertical vehicle axis z into a supporting door element and thus into the vehicle body. To this end the corresponding guide rails  42   a ,  42   b  are each housed with sufficient slight play between the base of the guide channel  47   a  and  47   b  and the elastic elements  470   a ,  470   b  which are opposite the channel base so that tilting movements of the support plate  44  and thus the arm support  2  about the vertical vehicle axis are prevented.  
         [0066]    Furthermore FIGS. 5 a  to  5   c  show a C-shaped socket  49  of the support plate  44  in which the spindle nut of a spindle gear serving for the height adjustment of the arm support can be housed secured against rotation. This nut  411  is guided longitudinally displaceable on a spindle rotatable through the drive of the adjusting device of the arm support and thus transfers the adjusting force of the drive motor to the support plate  44  and the arm support  2 .  
         [0067]    [0067]FIG. 6 shows diagrammatically a sectional view through an assembly support  50  and a door inner trim  1  fixed thereon by means of screws so that a structural space BR is left free for housing a height adjustable arm support and its support plate and the required drive and guide means. To this end the door inner trim  1  in the region of the connecting points with the assembly support  50  reaches up to same but is spaced sufficiently from same between the fixing points in order to produce the structural space BR.  
         [0068]    [0068]FIGS. 7 a  to  7   e  show a 1-post guide for a height adjustable support plate  2 ′ of an arm support which comprises a tubular shaped guide post  1   a  which is provided at its ends with a fixing flange with fixing points  10  for fixing on a supporting door element.  
         [0069]    The holder  20 ′ is guided on the guide post  1   a  by means of two guide sleeves  3  which are preferably integrated in one piece into the support plate  2 ′ and which are provided at the top and lower end of the support plate  2 ′ spaced from each other with the greatest spacing possible along the vertical vehicle axis z. To form the integral sleeves  3  the support plate  2 ′ has at each upper and lower edge along the vertical vehicle axis a right-angled end section which is provided with corresponding openings forming the sleeves  3 . In order to fix an arm support on the support plate  2 ′ fixing studs  20 ′ are provided which protrude perpendicularly from the support plate  2 ′.  
         [0070]    An electric drive motor  41  of the adjusting device as well as an associated spindle gearing which comprises a spindle  410  rotatable through the drive motor  41  as well as a spindle nut  411  fixed rotationally secured on the support plate  2 ′ and displaceable along the spindle  410  are combined with the guide post  1   a  and the support plate  2 ′ into one sub-assembly which can be pre-assembled and pre-tested as a complete unit. For this the electric drive  41  is connected to the guide post  1   a  in the region of its lower end along the vertical vehicle axis z.  
         [0071]    [0071]FIG. 8 shows a cross-section through a guide device of the kind shown in FIGS. 7 a  to . . . . The guide upright  1   a  is thereby connected at fixing points  10  to an assembly support  50  which can be fitted on the door inside skin, more particularly the door inside plate of a vehicle door. The support plate  2 ′ of an armrest is in this case mounted for swivel movement by means of the guide sleeves  3  on the guide post  1   a.    
         [0072]    The swivel movement of the support plate  2 ′ about the vertical vehicle axis z is however restricted, by two supporting areas protruding from the assembly support  50  towards the support plate  2 ′ in the form of projections  51  which are arranged either side of the guide post  1   a  spaced from each other along the vehicle longitudinal axis x and whose free ends form support faces for the support plate  2 ′ of the arm support. Transverse forces which lead to torque about the vertical vehicle axis can hereby be supported. Such transverse forces are introduced into the arm support and thus the support plate  2 ′ for example when a grab handle is integrated in the arm support or even in the case of misuse.  
         [0073]    Since the support plate  2 ′ is secured against tilting too sharply through the projections  51  which are formed from the assembly support  50 , preferably by imprinting or deep drawing, it is hereby ensured with a very cost-effective simply structured guide device having just one guide post  1   a  and no additional guide rails serving for anti-rotating lock, that larger transverse forces are diverted not into the door inner trim but through the projections  51  into the door body.  
         [0074]    [0074]FIGS. 9 a  to  9   c  show elongated guide posts  1   b ,  1   c ,  1   d  formed as profiled parts of different cross-section and each formed in one piece on an assembly support  50  of a vehicle door or alternatively a door inside panel and each associated with a corresponding profiled member  43   c ,  43   d ,  43   e  as a guide member which is connected to or moulded on the support plate of an arm support.  
         [0075]    Basically any type of profiled parts can be used to form a longitudinal guide, such as e.g. H, C or L shaped profiles which enable a precise longitudinal guidance along the vertical vehicle axis and a reliable support perpendicular to this along the vehicle longitudinal axis.  
         [0076]    In a reversal of the conditions shown in the previous figures the elongated guide element could also be provided in the form of a guide post or the like on the longitudinally displaceable support plate of the arm support and the associated guide members, for example in the form of guide sleeves, could be provided on the supporting door element, such as door inside skin or assembly support.  
         [0077]    Furthermore instead of several, more particularly two, guide sleeves spaced out from each other along the vertical vehicle axis it is also possible to use a single guide sleeve which extends over the longest possible stretch along the vertical vehicle axis.  
         [0078]    [0078]FIGS. 10 a  and  10   b  show in cross-section two different designs each of an elongated guide rail  42   a ,  42   d  provided on an assembly support  50  of a vehicle door and serving as an anti-rotation lock and associated with corresponding slide and supporting areas  47   c ,  47   d  formed in one piece or fixed on a support plate of an arm support.  
         [0079]    From FIGS. 9 a  to  9   c  it can be seen that the guide posts  1   c  to  1   e  illustrated there and the associated guide members  43   c  to  43   e  each interact along the vehicle axis x substantially free of play or with slight play so that forces acting in the vehicle longitudinal direction x as well as torque acting about the vertical vehicle axis y can be absorbed and diverted into the assembly support  50 .  
         [0080]    As opposed to this the guide rails  42   c  and  42   d  are each mounted relative to each other with the associated slide or guide areas  47 ,  47   d  with some play along the vehicle longitudinal axis x and substantially play-free or with very slight play transversely thereto along the vertical axis y. Thus in particular forces acting along the vertical vehicle axis y as well as torque about the vertical axis z are absorbed.  
         [0081]    It is decisive that the central guide post and the associated guide members have a substantially smaller amount of play along the vehicle longitudinal axis than the anti-rotation locks additionally provided which are formed by guide rails and associated slide or support areas, and that on the other hand the last-mentioned anti-rotation locks have a smaller play along the vehicle transverse axis y running perpendicular to the door plane than the guide posts with the associated guide members.  
         [0082]    It is hereby ensured that forces acting in the vehicle longitudinal direction x can be diverted through the central guide post and forces acting along the vehicle transverse axis y can be diverted through the additional anti rotation locks into a supporting door element such as an assembly support without the system being over-specified.