Abstract:
A fitting to be removably fastened to a furniture part includes a body, at least one expanding plug anchored in the body, and a pin-shaped expansion part. The body has a projecting supporting throat to protrude into a cavity in the furniture part. The supporting throat has at least one recess into which a projection on the expanding plug extends.

Description:
BACKGROUND OF THE INVENTION 
     The present invention relates to a fitting to be removably fixed to a furniture part, including a preferably plate-shaped body lying against the furniture part. At least one expanding plug is anchored in the body of the fitting, and the plug can be inserted into a bore of the furniture part. A pin-shaped expansion part for the expanding plug protrudes through an aperture in the body of the fitting. 
     A base plate for a hinge is known from AT-PS 326 522, and the base plate has supporting plugs that are received within cavities in the furniture parts. This base plate is fixed by screws onto the furniture part. 
     SUMMARY OF THE INVENTION 
     The object of the invention is to improve anchorage in the furniture part using a fitting of the type described in the introduction that is fastened onto a furniture part by a dowel-type expanding plug. 
     The object of the invention is solved in that on the body of the fitting there is configured at least one projecting supporting throat, known per se, which when assembled projects into a corresponding cavity in the furniture part and is inserted into the expanding plug. The supporting throat is provided with at least one recess into which a projection configured on the expanding plug protrudes. 
     Two recesses can be advantageously arranged diametrically opposite to one another in the supporting throat. 
     In an embodiment of the invention, the projection or projections is/are arranged laterally on an area of the throat of the expanding plug that has a reduced diameter in comparison to an adjacent section of the expanding plug. 
     According to a further embodiment of the invention, the at least one recess extends over the entire height of the supporting throat, and two axial projections are arranged on the expanding plug that protrude into the two recesses in the supporting throat. 
     Advantageously, two arms standing out at an angle to the body of the fitting can be molded on the projections, and the arms are riveted to the body of the fitting. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     Different embodiments of the invention will hereinafter be described with reference to the attached drawings in which: 
     FIG. 1 is an exploded view of an embodiment of a fitting according to the invention; 
     FIG. 2 is a perspective view of the fitting seen from above; 
     FIG. 3 is a perspective view of the fitting seen from below; 
     FIG. 4 is a plan view of the fitting according to the invention; 
     FIG. 5 is a section view taken along line  5 — 5  of FIG. 4; 
     FIG. 6 is a section view taken along line  6 — 6  of FIG. 4; 
     FIG. 7 is a detail view of section A of FIG. 5; 
     FIG. 8 is a detail view of section A of FIG. 6; 
     FIG. 9 is a section view similar to FIG. 5, in which the expansion part is completely screwed-in; 
     FIG. 10 is a detail view of section A of FIG. 9; 
     FIG. 11 is an exploded view of a second embodiment of the fitting according to the invention; 
     FIG. 12 is an exploded view of the fitting of the second embodiment seen from above; 
     FIG. 13 is an exploded view of the fitting of the second embodiment seen from below; 
     FIG. 14 is a plan view of the fitting of the second embodiment; 
     FIG. 15 is a section view through the line  15 — 15  of FIG. 14; 
     FIG. 16 is a section view through line  16 — 16  of FIG. 14; 
     FIG. 17 is a detail view of section A of FIG. 15; 
     FIG. 18 is a detail view of section A of FIG. 16; 
     FIG. 19 is a section view similar to that of FIG. 15, in which the expansion part is completely screwed-in to the furniture part; 
     FIG. 20 is a section view similar to that of FIG. 16, in which the expansion part is completely screwed in; 
     FIG. 21 is a detail view of section A of FIG. 19; and 
     FIG. 22 is a detail view of the section A of FIG.  20 . 
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     In the embodiments shown, the fitting according to the invention is composed of a plate-shaped body  1  configured, for example, as a base plate for the arm of a hinge, an expanding plug  3 , and a screw-shaped expansion part  2 . 
     In the embodiment according to FIGS. 1 to  10 , the expanding plug  3  is fabricated from plastics. In the embodiment according to FIGS. 11 to  22 , however, the plug  3  is fabricated from quenched and drawn or hardened steel. 
     The metallic expanding plug  3  is advantageously provided with a phosphate coating. The wall thickness of the metallic expanding plug  3  can thus be kept below 1 mm, and preferably between 0.7 and 0.8 mm. In both embodiments, the expansion part  2  can also be fabricated from quenched and drawn or hardened steel. 
     The body  1  has on its side facing the furniture part  5  a projecting supporting throat  4  that—when assembled—protrudes into the bore  11  in the furniture part  5  that receives the expanding plug  3 . As shown in FIG. 1, the supporting throat has a base end connected to the body  1 , and has a distal end opposite the base end (and farthest from the body). 
     The supporting throat  4  has two recesses  6  diametrically opposite to one another, in which, when the fitting is assembled, projections  7 ,  17  of the expanding plug  3  are received in a form-fitting manner. As also shown in FIG. 1, each of the recesses extends axially from the distal end of the supporting throat  4  toward the base end of the supporting throat  4 . 
     The projections  7  of the expanding plug  3  made of plastics are located in the proximity of a small-diameter throat area  12  of the expanding plug  3  having a lesser diameter than the adjacent large diameter gripping area, which has gripping ribs  13 , of the expanding plug  3 . 
     The area  12  is provided with slits  14  that facilitate securing of the expanding plug  3  into the body  1 . 
     The area  12  (or, more generally, the expanding plug  3 ) has radially projecting edge  8  at its free end. When the fitting is assembled, the edge  8  is received in a cavity  15  of the body  1 . 
     The fitting according to the invention is positioned in its assembled form as shown in FIGS. 5 and 6. When the body  1  is initially placed on the furniture part  5 , a thickened area of the body  1  that surrounds the expanding plug  3  and the expansion part  2  is located at a distance  9  from the side wall of the furniture  5 . 
     If, as shown in FIGS. 9 and 10, the screw-like expansion part  2  is screwed further into the expanding plug  3 , the body  1  is pressed directly onto the furniture part  5 . The body  1  is thus held against the furniture part  5  under compression. 
     In order to make possible the screwing of the screw-like expansion part  2 , the expansion part  2  has a recess  16  on its head end for receiving a crosshead screwdriver. 
     In the embodiment according to FIGS. 11 to  22 , the expanding plug  3  is configured as a steel sleeve. The body of the fitting  1  is provided with a supporting throat  4  that again has two recesses  6  diametrically opposite one another. 
     In these embodiments, the recesses  6  are configured continuously. In other words, the recesses extend over the entire height of the supporting throat  4 . 
     The expanding plug  3  has, on its end facing towards the body  1 , two projections  17  extending axially hat, as can be seen from FIG. 13, protrude into the recesses  6  when assembled and are fully received therein. 
     At the free ends of the projections  17 , tabs  10  are configured so as to extend at an angle with respect to the body  1 . 
     In the assembled state, the tabs  10  are received into grooves  18  of the body  1 , and are fixed by rivets  19  to the body of the fitting  1 . 
     The tabs  10  standing out at an angle are elastic so that prior to tensioning (that is to say prior to tightening up the expansion part 2 ), as is visible from FIG. 18, the body  1  is again held at a distance  9  from the furniture part  5 . By screwing down the expansion part  2  that is provided with an external thread  20  that engages with an internal thread  21  in the expanding plug  3 , the body of the fitting is pressed into direct contact with the furniture part  5 . This situation is apparent from FIG.  22 . 
     In order to make bending of the body  1  possible, it is provided with edges. The body of the fitting  1  can be fabricated from metal, preferably steel, and also from plastics material.