Abstract:
Building having at least one inner room in which at least one further room of approximately cell-like design is arranged, wherein the floor region ( 28 ) of the cell-like room ( 21 ) separated from the building is set apart from a cell-supporting surface ( 10, 12 ) of the building in a sound-isolating manner by at least one spacer element ( 30 ) made of sound-insulating material or materials.

Description:
BACKGROUND OF THE INVENTION  
       [0001]     The invention relates to a building having at least one inner room in which at least one further room of cell-like design is arranged.  
         [0002]     The goal set by the inventor is to design combinations of this type such as to produce sound-protected examination rooms at the premises of ear, nose and throat doctors or in specialist acoustic centers, or a soundproof room for operating personnel in industrial production halls. It is also intended to make possible the production of soundproof rooms which may be employed in halls containing production machines so that the surrounding room is protected from noise. Another intention is to be able to use such combinations to set up meditation rooms in private houses or in airports and hotels.  
       SUMMARY OF THE INVENTION  
       [0003]     This object is achieved by the teaching of the independent claims; the subclaims specify advantageous developments. Furthermore, any combination of at least two of the features disclosed in the description, the drawing and/or the claims comes within the scope of the invention. Where designated ranges are specified, values situated within the stated limits are also intended to be disclosed, and to be able to be used at will, as limit values.  
         [0004]     According to the invention, the floor region of the cell-like space separated from the building is set apart from a cell-supporting surface of the building in a sound-isolating manner by means of at least one spacer element made of sound-insulating material or materials; the spacer element is intended to be formed from a dimensionally stable sound-insulating material, for example to be configured as a rubber bearing.  
         [0005]     It has proved advantageous to arrange the strip-like or panel-like spacer element on the underside of the floor structure of the cell housing enclosing the cell-like room, approximately at the corners of said housing.  
         [0006]     A frame, preferably a flat frame, made of metal material and intended for connection to spacer elements is advantageously mounted on the underside of the floor structure; the free height of these spacer elements is intended to determine the distance between the cell-supporting surface of the building and the underside of the floor structure of the cell-like room or of the room-enclosing cell housing. The width of the spacer element is preferably less than the width of said flat frame, with the result that the spacer elements can be connected with full-surface contact to this frame. The frame may consist of a lightweight metal alloy, but may also be configured as a flat steel frame.  
         [0007]     In another embodiment, it is intended for the spacer elements to be able to be distributed at a distance from one another on the underside of the floor structure.  
         [0008]     It is provided within the scope of the invention that the floor structure of the cell housing comprises a number of layers, of which the lowermost is configured as a rigid base panel, in particular as a sheathing panel; for the purpose of blocking off sound, the floor structure is intended to comprise at least one plasterboard panel which is additionally spanned by a carpet-like covering.  
         [0009]     According to the invention, cell walls are seated on the base panel, these cell walls providing a soundproofing structure and thus protecting the inner room. To this end, the cell walls are each intended to be provided, on either side of a gap, with insulating panels which may contain a metal upright as holding element which is surrounded by insulating material. Moreover, a ceiling panel is seated on the walls, the structure of which ceiling panel corresponds approximately to that of the walls.  
         [0010]     The room depth, room width and room height of the acoustic cell according to the invention can be chosen at will. Moreover, it is not crucial for windows to be installed in the room-enclosing surfaces. The crucial idea is a room-in-room system which is acoustically separated from all surrounding architectural and structural components. This is achieved by virtue of the fact that the acoustic cell or the acoustic room does not allow any connection to result with the surrounding walls, floor and ceiling, and its boundaries consist of materials which do not transmit sound. Here, this material can be inserted as a surface or at points between the acoustic room and floor. The latter thus stands on non-sound-transmitting material and is acoustically isolated. 
     
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0011]     Further advantages, features and details of the invention will become apparent from the description below of preferred exemplary embodiments and with reference to the drawing, in which:  
         [0012]      FIG. 1  shows a section through part of a room of a building in which there stands an acoustic cell;  
         [0013]      FIG. 2  shows an enlarged detail from  FIG. 1  pertaining to a different exemplary embodiment;  
         [0014]      FIG. 3  shows a cross section through an acoustic cell;  
         [0015]      FIGS. 4 and 5  show a front and rear wall, respectively, of the acoustic cell according to  FIG. 3  in a plan view;  
         [0016]      FIG. 6  shows an external view of side walls connecting the front wall and rear wall at both ends;  
         [0017]      FIG. 7  shows the ceiling plan of the acoustic cell. 
     
    
     DETAILED DESCRIPTION  
       [0018]     Two floors  10 ,  10   a  of a building, which is not shown in any further detail, extend parallel and at a vertical distance from one another. The lower floor  10  bears a multi-layered floor unit  11  which is covered by a covering layer  12 . A false ceiling  16  is suspended from the upper floor  10   a , thereby forming a ceiling space  15  which, inter alia, contains pipes  14  at a center spacing a from the floor  10   a  of, in this case, 10 cm, this false ceiling being at a spacing b from the floor of, in this case, 19 cm and determining a room height h of, for example, 2600 mm. On the left-hand side, at a spacing b 1  of 330 mm from the floor  10   a , can be seen a suspended ceiling  17  which terminates at a horizontal spacing c of approximately 100 mm from a vertical intermediate wall  18  to form an alcove-like room section for lights  19 .  
         [0019]     An outer surface of a cell housing or of an acoustic cell  20 , which, as described below, is acoustically isolated from all surrounding architectural and structural components, extends at a horizontal spacing c 1  of, in this case, 120 mm from the edge  17   k  of the suspended ceiling  17 . In this acoustic cell  20 , a front and rear wall  34 ,  36 , which are connected by side walls  38  as shown in  FIG. 3 , project vertically from a heavy sheathing panel  22  having a thickness e of 25 mm. Upon said base panel or shutter panel  22  are situated a wooden fiberboard  23  having a thickness e 1  of 10 mm and a plasterboard panel  24  having a thickness e 2  of 23 mm as a bearing surface for a carpet covering  25  having a thickness e 3  of approximately 10 mm; these layers  22 ,  24 ,  25 , supplemented by a flat steel frame  26  having a thickness e 4  of 10 mm and a width g of 100 mm, form the floor structure  28  with an overall thickness f of almost 70 mm. Instead of said flat steel frame  26  it is also possible to use a frame  26  formed from a different metal material.  
         [0020]     The flat steel frame  26  of the floor structure  28  is employed as a holding means for sound-isolating bearing members  30  made of sound-insulating material, in particular for rubber bearing members  30  which bring about sound isolation and which can be mounted in various configurations, for example as strips or panels of various design. These rubber bearing members  30  determine, by way of their height y, the spacing h 1 —of 93 mm in this case—between the surface of the covering layer  12  of the floor unit  11  of the floor  10  on the one hand and the surface of the carpet covering  25  in the acoustic cell  20  on the other hand, and also the gap spacing.  
         [0021]     On either side of a metal upright  40  having a width g 1  of 100 mm and comprising an insulating material  42 , the walls  34 ,  36 ,  38  each have insulating panels  44 ,  46  with an overall width f 1  of 25 mm; the surface of the inner insulating panel  46  that faces the interior  21  of the acoustic cell  20  is provided with a carpet covering  25   a  whose thickness e 5  also amounts to approximately 10 mm. Close to the lower edge of the outer insulating panel  44  forming the outer surface of the acoustic cell  20 , a concealed joint with a height of 1.5 mm is formed, at  48 , in said insulating panel.  
         [0022]     The carpet covering  25   a  in 1 terminates at the underside  49  of a ceiling panel  50  which spans the acoustic cell  20  and which bears on the walls  34 ,  36 ,  38 , the spacing h 2  from the inner surface of said ceiling panel to the inner surface of the floor  10   a  being approximately 360 mm. In  FIG. 2 , the upper edge of the carpet covering  25   a  is at a spacing h 3  from the underside  49  of the ceiling panel  50  and serves as a holder for an inner upper panel  46   a , which is thus at a spacing from the ceiling panel  50 . Its longitudinal section is also shown by the metal upright  40  and the outer insulating panel pair  44 / 46 ; toward the interior  21  of the acoustic cell  20  is provided only one insulating panel  46  which, as stated, is at a spacing h 3  from the metal upright  40  of the ceiling panel  50  in  FIG. 2 .  
         [0023]      FIG. 3  indicates the ground plan of an acoustic cell  20  having an outer length i of 500 cm and a double width n of 310 cm. The outer height k corresponds to the acoustic cell  20  and here amounts to 252 cm. In a strip-like opening  37 , the rear wall  36  contains a window  52  having a length i 1  of approximately 300 cm and a low height n 1  of 50 cm. A door  54  having a width i 2  of 110 cm is fitted off-center in an opening  37  in the front wall  34 .  
         [0024]     The ceiling plan in  FIG. 7  between the front wall and rear wall  34 ,  36 , having an inner free length q of 470 cm, and the side walls  38 , having an inner free length q 1  of 280 cm, shows a construction network composed of squares  56  having a side length t of 60 cm between continuous border strips  58  and  58   a  having a width z of 20 cm and z 1  of 25 cm, respectively.