Abstract:
A hinge ( 2 ), preferably a single-axle hinge, for furniture with a frame ( 3 ) and with a door wing ( 1 ) secured to the frame ( 3 ). The hinge ( 2 ) has a bedplate ( 5 ) which is to be fitted to the frame ( 3 ) and which carries a hinge arm ( 7 ). A joint-adjustment screw ( 24 ) is provided and furthermore a diagonal guide for the hinge arm ( 7 ), via which the latter is also shifted upon turning of the joint-adjustment screw ( 24 ) relative to the bedplate ( 5 ) in the direction of the depth of the item of furniture.

Description:
BACKGROUND OF THE INVENTION  
         [0001]    The invention relates to a hinge, preferably a single-axle hinge, for furniture with a frame and with a door wing secured to the frame, with a bedplate which is to be fitted to the frame and which carries a hinge arm, and with a joint-adjustment screw.  
           [0002]    In modern furniture construction, so-called door frames are sometimes used, these frames, as a stable part of the item of furniture, carrying the hinges for the door wings, while the actual side walls of the body of the furniture are made from weaker material. This brings with it the advantage that either the overall costs of the item of furniture can be reduced, or higher-quality and thus optically more attractive materials can be chosen for the side walls without the item of furniture being more expensive compared with furniture produced by conventional means.  
           [0003]    Such a hinge is known for example from the Austrian utility model AT 1385 U1.  
           [0004]    With such hinges, an adjustment possibility is provided for the position of the hinge axle relative to the bedplate in the direction of the furniture joint, i.e. perpendicular to the side wall of the item of furniture. This adjustment is achieved through the joint-adjustment screw which is housed in a nut thread of the hinge arm and is held with its head in a recess of the bedplate or of an intermediate piece.  
           [0005]    It has proved disadvantageous that during a side setting of the door, i.e. during the joint adjustment, the hinge arm is swivelled through turning of the joint-adjustment screw. A lateral adjustment of the hinge arm relative to the side wall of the furniture can therefore result in the door either being raised too far from the front of the frame or sticking to it. With the known hinges it is therefore necessary, after every side adjustment (joint adjustment) of the door, to adjust the position of the hinge arm on the bedplate in the direction of the depth of the item of furniture. Such a position adjustment is laborious and relatively time-consuming.  
         SUMMARY OF THE INVENTION  
         [0006]    The object of the invention is to improve a hinge of the type mentioned at the outset such that an adjustment of the position of the door wing in the direction of the furniture joint does not change the position of the door wing in the direction of the depth of the item of furniture.  
           [0007]    The object according to the invention is achieved by a diagonal guide for the hinge arm via which the latter, upon turning of the joint-adjustment screw relative to the bedplate, is also shifted in the direction of the depth of the item of furniture.  
           [0008]    It is advantageously provided that the diagonal guide is formed by grooves or slits in side bars of the bedplate, into which guide journals of the hinge arm project.  
           [0009]    In order that, with such a hinge, there is the possibility of a depth adjustment independent of the joint adjustment, it is provided in another embodiment of the invention that at least one intermediate piece, at which the grooves or slits are developed and the guide journals are housed, is arranged between the bedplate and the hinge arm.  
           [0010]    An advantageous variant of this embodiment provides that two intermediate pieces are arranged between the hinge arm and the bedplate and the diagonal guide is developed between these two intermediate pieces. 
       
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0011]    Various embodiments of the invention are described below with reference to the figures of the attached drawings. There are shown in:  
         [0012]    [0012]FIG. 1 a perspective view of a hinge according to the invention in the mounting position, wherein sections of the frame and of the door wing are shown,  
         [0013]    [0013]FIG. 2 an exploded perspective view of a hinge,  
         [0014]    [0014]FIGS. 3, 4 and  5  side views of a hinge according to the invention, partly in section, with different positions of the hinge arm,  
         [0015]    [0015]FIG. 6 a perspective view of another embodiment of a hinge according to the invention,  
         [0016]    [0016]FIG. 7 a top view of a hinge according to FIG. 6,  
         [0017]    [0017]FIG. 8 a side view of a hinge according to FIG. 6, and  
         [0018]    [0018]FIG. 9 an exploded perspective view of a hinge according to the embodiment of FIGS.  6  to  8 . 
     
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS  
       [0019]    In FIG. 1, the door wing  1  is shown in the open position. The hinge  2  connects the door wing  1  to the frame  3  of the body of the item of furniture.  
         [0020]    In the embodiment according to FIGS.  1  to  5 , the hinge  2  consists of the bedplate  5 , the hinge arm  7  and the hinge casing  6  on the door wing side. The hinge casing  6  is articulated to the hinge arm  7  by means of a hinge axle. The hinge axle is formed by one leg  11  of a U-stirrup  8 .  
         [0021]    The hinge casing  6  is inserted into a bore in the door wing  1  in mounting position and screwed to the door wing  1  by means of screws  9 .  
         [0022]    Two legged springs  13 , which exert a closure force, are housed at the hinge casing  6 . The legged springs  13  are housed on the second leg  18  of the U-stirrup  8 .  
         [0023]    The legs  12  of the legged springs  13  press on a control part  14  which is developed at the free end of the hinge arm  7 . The hinge casing  6  is held in the closure position by the legged springs  13 , or pulled into the closure position if the angle between the door wing  1  and the closure plane is very small.  
         [0024]    The bedplate  5  is housed directly against the frame  3  and is screwed to the frame  3  by means of a fixing screw  18  which projects through an oblong hole  15  of the bedplate  5 . On the side facing the open door wing  1 , the bedplate  5  has two angled lugs  16  which rest against the frame  3  at the front in mounting position.  
         [0025]    At the rear of the frame  3 , the bedplate  5  is also provided with a lug which rests against the frame  3  at the rear.  
         [0026]    The hinge arm  7  is developed with U-shaped cross-section. The bedplate  5  has two side legs  17  which project into the profile of the hinge arm  7 . The side bars  7 ′ of the hinge arm  7  point towards the bedplate  5 . The upwardly bent butts  17  of the bedplate  5  are provided with holes  19  which are designed as bores or punched holes. The side bars  7 ′ of the hinge arm  7  have oblong holes  21 . The hinge arm  7  is connected to the bedplate  5  by means of a pin  22  which projects through the holes  19 ,  21 .  
         [0027]    If the position of the door wing  1  is to be adjusted in the direction of the furniture joint, the joint-adjustment screw  24  is turned and thus the hinge arm  7  is tilted about the pin  22 .  
         [0028]    The joint-adjustment screw  24  has a threaded section  23 , a neck and a head  26 . The bedplate  5  is provided with a hole  27 , through which the neck of the joint-adjustment screw  24  projects which is riveted with its head  26  to the bedplate  5 . The hinge arm  7  has an oblong hole  33 , open to the rear, which opens out in a further oblong hole  34 . The oblong holes  33  and  34  together form a keyhole.  
         [0029]    The opposite-facing rims  35  of the oblong hole  33  engage in the thread of the threaded section  23  of the joint-adjustment screw  24 . In order to facilitate this engagement, the rims  35  are offset in the direction of the length of the joint-adjustment screw  24  over the height of a thread pitch. The oblong hole  34  in the hinge arm  7  makes possible the suspension of the joint-adjustment screw  24  into the oblong hole  33 . The oblong hole  34  also allows access of an adjustment tool to the fixing screw  18 . If the fixing screw  18  is loosened, the position of the hinge  2  in the direction of the height of the item of furniture can be adjusted over the length of the oblong hole  15 .  
         [0030]    In order that, during the joint adjustment of the hinge arm, the position of the hinge axle is not also changed in the direction of the depth of the item of furniture, the bedplate  5  has grooves  61 , running diagonally in its side bars  17 , in which journals  62  housed in the side bars  7 ′ of the hinge arm  7  engage. Through the diagonal guide of the grooves  61  and the journals  62 , upon turning of the adjustment screw  24  the hinge arm  7  is automatically simultaneously shifted in the direction of the depth of the item of furniture, as a result of which the swivelling of the hinge axis during the joint adjustment is again balanced out. This movement is made possible by the oblong holes  21 .  
         [0031]    In the embodiment according to FIGS.  6  to  9 , the hinge  2  has two intermediate pieces  4  and  40 .  
         [0032]    The bedplate  5 , the intermediate piece  4 , the intermediate piece  40  and the hinge arm  7  are articulated to each other by a pin  22 . The pin  22  projects through oblong holes  21  in the hinge arm  7 , slits  58 , open to the rear, in the intermediate piece  40 , circular holes  20  in the side bars  4 ′ of the intermediate piece  4  and circular holes  59  in the upwardly bent butts  17  of the bedplate  5 .  
         [0033]    A spiral disk  10  is accommodated with its cylindrical base  38  in a circular opening  47  of the intermediate piece  4 . On its side lying opposite the base  38 , it has a spiral bar  36  which rests against projections  37  of the bedplate  5 . Through turning of the spiral disk  10 , the intermediate piece  4  together with the intermediate piece  40  and the hinge arm  7  is shifted in the direction of the height of the item of furniture.  
         [0034]    The adjustment of the hinge arm  7  in the direction of the depth of the item of furniture again takes place by means of an eccentric  29  which is housed in the intermediate piece  40 . The eccentric cam  30  of the eccentric  29  is accommodated in an oblong hole  31  of the hinge arm  7 .  
         [0035]    The joint-adjustment screw  24  is housed in a nut thread  59  of the intermediate piece  40  and is anchored with its head  26  in a stirrup  60  of the intermediate piece  4 .  
         [0036]    Through turning of the joint-adjustment screw  24 , the intermediate piece  40  together with the hinge arm  7  is tilted relative to the intermediate piece  4  and to the bedplate  5  about the axle formed by the pin  22 .  
         [0037]    In order that, during the joint adjustment of the intermediate piece  40  and of the hinge arm  7 , the position of the hinge axle is not changed in the direction of the depth of the item of furniture, the intermediate piece  4  has grooves  61 , running diagonally in its side bars  4 ′, in which journals  62  housed in side bars  40 ′ of the intermediate piece  40  engage. Through the diagonal guide of the grooves  61  and the journals  62 , upon turning of the adjustment screw  24  the intermediate piece  40  together with the hinge arm  7  is simultaneously shifted in the direction of the depth of the item of furniture, as a result of which the swivelling of the hinge axis relative to the depth of the item of furniture is again balanced out.