The present invention relates to a concealed hanging-bracket group with anti-disengagement having easy access to adj ustments .

The technical field is that relating to concealed hanging brackets , suitable for being mounted in a rear outer position with respect to a wall cupboard . In particular, this type of hanging bracket is generally coupled with a shoulder beneath the top, close to the lining of the wall cupboard, so that once constrained to the wall , the hanging bracket is well concealed . These groups are also provided with anti-disengagement for preventing an accidental detachment of the wall cupboard in the case of impact that can cause it to become detached from the wall .

These hanging brackets generally consist of a single plate element provided with various side protrusions (pins) which, in the assembly phase, are coupled with holes produced on a rear shoulder of the wall cupboard. These hanging brackets also comprise a movable hooking element connected to the relative plate for fixing the hanging bracket to the wall.

An anti-disengagement system is also provided, which intervenes, preventing any possible accidental disengagement of the wall cupboard from the wall on which is it mounted.

An example of a hanging bracket is described in international patent application WO2004/032681 Al .

An access to the various adjustments in height and in depth present in hanging brackets is provided by a pair of holes produced in the rear part of the furniture or lining.

In order to reduce perforated surfaces in the lining of the furniture, a single hole having a certain size is provided, from which access is given to both adjustments of the hanging bracket.

This solution is object of patent EP1008316B1, in this solution, however, there is also a certain structure complication. The reason for this is that some elements are produced from separate moulds and must therefore be joined to the base plate, thus requiring an increase in the production costs associated with the production of different pieces and an increase in the assembly costs for making them integral with each other before being mounted on the furniture .

DE 203 14 821 Ul and DE 202015 103519 Ul refer to a hanging-bracket group according to the preamble of claim 1. The general objective of the present invention is to solve the drawbacks of the known art indicated above in an extremely simple, economical and particularly functional manner.

A further objective of the present invention is to provide a concealed hanging-bracket group with anti- disengagement which ensures an easy and stable assembly with as few components as possible and a secure attachment even in the case of unexpected stress.

Another objective of the present invention is to provide a concealed hanging-bracket group with anti- disengagement which minimizes separate moulded pieces to be joined to the base plate to form the hanging bracket .

In view of the above-mentioned objectives, according to the present invention, a concealed hanging-bracket group with anti-disengagement having easy access to adjustments has been conceived, having the features specified in the enclosed claims.

The structural and functional characteristics of the present invention and its advantages with respect to the known art will appear even more evident from the following description, referring to the enclosed drawings, which show a concealed and adjustable hanging bracket for mounting a wall cupboard to a wall, produced according to the present invention.

In the drawings:

figure 1 shows a raised sectional view of an embodiment of a concealed hanging-bracket group with anti-disengagement for mounting a wall cupboard to a wall, produced according to the present invention;

figure 2 is a view of the hanging bracket of figure 1 from inside the furniture;

figures 3 and 4 show raised front and rear views of the plate alone of the hanging bracket of figure 1 in a first embodiment;

figure 5 is a sectional view of the hanging bracket of figures 3 and 4 with the sheet folded;

figure 6 is an exploded perspective view of the hanging bracket of figures 3, 4 and 5;

figures 7 and 8 show raised front and rear views of the plate alone of the hanging bracket of figure 1 in a second embodiment;

figure 9 is a sectional view of the hanging bracket of figures 7 and 8 with a mounting element added;

figure 10 is an exploded perspective view of the hanging bracket of figures 7, 8 and 9;

figures 11 and 12 show raised front and rear views of the plate alone of the hanging bracket of figure 1 in a third embodiment; figure 13 is a sectional view of the hanging bracket of figures 11 and 12 with a mounting element added to be riveted;

figure 14 is an exploded perspective view of the hanging bracket of figures 11, 12 and 13.

With particular reference to figures 1 and 2, these show an embodiment of a concealed hanging-bracket group with anti-disengagement having easy access to adjustments according to the present invention.

Said hanging-bracket group is of the adjustable type and suitable for being assembled at the rear, in a concealed position, on a wall-cupboard M.

The hanging-bracket group comprises a plate element 11 of a hanging bracket 10 provided with a plurality of fixing pins 12 , 12', 12", which extend towards the outside on one side of the plate element 11 (and/or also on the other side) , and a hooking element 14 coupled in the front with the plate element 11 to constrain the actual hanging bracket with a supporting element fixed to the wall , such as a supporting element 50. The plurality of fixing pins 12 , 12 ' , 12" can be coupled in holes formed on a shoulder S of the wall cupboard M whereas , for example, the supporting element 50 fixed to the wall on which the hanging bracket 10 is to be constrained, can be a common bar 70. As in the known hanging brackets , also in the hanging bracket 10 , object of the invention, the hooking element 14 can be adj usted in depth and in height with respect to the relative plate element 11 and is provided with an upper hook-shaped portion 15 (hook) to be coupled with the above-mentioned bar 70 fixed to the wall by means of dowels 51.

In order to proceed with this adj ustment in depth and in height, movement means 16, 17 horizontally and vertically are provided, such as, for example, two known screw-nut screw mechanisms possibly equipped with angular return elements, and anti-disengagement means 18. Said movement and anti-disengagement means according to the invention are easily accessible for a user during both the assembly phases and when the hanging bracket 10 has been mounted from a pair of holes 21 and 21' formed in a rear lining F of the furniture M.

It should also be noted that the plate element 11 comprises , in its upper portion, at least one pair of holes 20, 20' for screw coupling the plate element itself 11 with the wall cupboard M (lining F and top C) .

A tilted side wall 19 of the plate 11 is provided with at least one pass-through hole 22 for screw coupling with the shoulder S of the wall cupboard M, in which the fixing pins 12 , 12 ' , 12" are inserted .

According to the present invention, the plate 11 is produced from a single moulded sheet which provides a fixing arrangement for the movement means 16, 17 and adjustments horizontally and vertically and for the anti-disengagement means 18.

The plate 11 , in fact, has a window 23, produced by means of a half-blanking step, from an end of which an appendix 24 extends , which is box-folded . On one of its sides parallel to the plate 11 , said appendix 24 has a threaded hole 25 suitable for receiving an adj ustment screw 26, or grub screw, provided with a recessed head 27. The recessed head 27 is inserted in a groove 28 provided on the box-shaped body of the hooking element 14.

It should be pointed out that, at an end opposite to the hook-shaped portion 15, the hooking element 14 has slots 29 suitable for receiving pin ends 31 of a platelet 30 which make it integral and articulated with respect to the plate 11.

The plate 11 also has two further appendices 32 and 33 obtained by half-blanking beneath the window 23. The two further appendices 32 and 33 are square-folded with respect to the surface of the plate 11. The first further appendix 32 has a recess 34, rounded and open towards the outside . The second further appendix 33 , on the other hand, has a pass- through hole 35.

A screw 36 is provided at one end with a toothed crown 37 and a narrow cylindrical section 38 and is positioned between the two further appendices 32 and 33. The screw 36 beneath the toothed crown 37 has a flange or collar 39 protruding outwardly, which is engaged in the recess 34 , rounded and open towards the outside, of the first further appendix 32. Furthermore, the narrow cylindrical section 38 of the screw 36 is engaged in the pass-through hole 35 of the second appendix 33. The screw 36 is therefore free to rotate when actuated by the toothed crown 37.

It should also be noted that an intermediate section of the screw 36 is screwed into a threaded pass-through hole 40 of the platelet 30 , which carries the hooking element 14 integrally and articulated .

Finally, it also should be pointed out that, at the end opposite to the recessed head 27 , the adj ustment screw 26 provides a shaped seat 41 for a tip of a screwdriver 42.

It should also be noted that the window 23 in the plate 11 extends above into a slot 49 from where the anti-disengagement means 18 can be actuated. Furthermore, the plate 11 beneath the window 23 , has a pair of pass-through holes 43 and 44 that are aligned with the hole 21 produced in the lining F of the furniture M.

The rotation of the screw 26 using the tip of the screwdriver 42 inserted in the hole 21 and immediately afterwards in the hole 43 of the plate 11, effects an adj ustment in depth of the hanging bracket according to the arrow K .

A tip of a screwdriver 42 , when inserted in the hole 21 and immediately afterwards in the hole 44 of the plate, causes an engagement on the toothed crown 37 of the screw 36. A rotation of said screw 36 forces the platelet 30 , which carries the hooking element 14 integrally and articulated, to move upwards effecting an adj ustment in height of the wall cupboard according to the arrow H .

Finally, a tip of a screwdriver 42 , when inserted in the hole 21 ' and immediately afterwards passing into the slot 49 of the window 23 in the plate 11 , causes an engagement of a grub screw 52 in an undercut 53 of the bar 50 creating an anti-disengagement group .

It should be noted that, in the present invention, the movement means 16, 17 and adj ustments of the hanging bracket horizontally and vertically, are basically contained inside the appendix 24 of the plate 11. This appendix 24 , obtained by means of a half blanking step of a window 23 in the plate 11, is square-folded on a front part of the plate (as can be seen in the figures ) to form a containment casing of at least part of said adj ustments or movement means 16, 17. Said casing is produced without any addition of material but by simply folding the appendix 24 in the form of a "C", to be closed on the plate 11.

The group according to the invention is characterized in that an element 24 is provided in the plate element 11 , which has a threaded hole 25 for a grub screw 26 for adj ustment in depth, a guide 47 for a screwdriver and a stop 48 for a tip of the same screwdriver 42 also being provided in said element 24.

The anti-disengagement grub screw 52 provides a simple arrangement which is a further feature of the hanging-bracket group of the present invention, making it complete and functional .

Figures 7 to 10 show various raised front views , in the front and rear, sectional and exploded perspective views , of a plate of the hanging bracket with a hooking element similar to that of figure 1 in a second embodiment . In this embodiment, the same elements are indicated with the same reference numbers .

It should only be pointed out that, in figures 7 to 10 , as an alternative to the sheet folded on itself forming the appendix 24 of figures 1 to 6, this example shows how the sheet of the plate 11 has a deep-drawn seat 55 which holds an element made of zama 57 having a threaded hole 58 for the grub screw 26 for adj ustment in depth . The assembly direction is according to the arrow 54 and, in this case, a guide for the screwdriver 47 (on both sides also in 47 ' ) is provided together with a stop 48 for the tip of the same . It should also be noted that the element made of zama 57 is provided with a pin 59 to be inserted in a hole 60 of the plate 11 and to be riveted once inserted on the sheet of the plate 11 from the rear .

Also in this case, the group is characterized in that an element 57 is provided in the plate element 11 , having a threaded hole 58 for a grub screw 26 for adj ustment in depth, a guide for the screwdriver 47 also being provided in the element 27 , together with a stop 48 for a tip of the same screwdriver 42.

Finally, figures 11 to 14 show a third embodiment, having the same reference numbers for the same elements . In this example, the sheet of the plate 11 receives an element in zama 57 ' having a threaded hole 58 ' for the grub screw 26 for adj ustment in depth, a guide 67 for a screwdriver 42 (on both sides also in 67 ' ) and a stop 68 for the tip of the screwdriver 42. Said element 57' is provided with a flap 69 to be riveted and is inserted on the sheet of the plate 11 from the front .

It should be pointed out that in an embodiment, the hanging-bracket group of the present invention is characterized in that the sheet of the body (half- blanked appendix 24 ) , or of the plate 11 , is folded on itself creating a seat for the threaded hole 25 which receives the grub screw 26 or screw for adj ustment in depth . With this operation, a U-bolt folding 47 of a central end part is also defined, which is also half- blanked and which acts guide for the tip of the screwdriver 42. At the same time, an abutment or stop 48 is also created, effected by half-blanking without processing and additional pieces , as for the previous U-bolt folding 47.

To be able to effect the movement transmission between the tip of the screwdriver and toothed crown 37 of the screw 36, which effects the adj ustment in height, it is essential that the tip of the screwdriver 42 be placed in a very precise position (figure 1 ) thanks to the presence of the guiding channel 47 and stop 48.

The tip of the screwdriver 42 is held in the guide by the hole 44 formed on the plate 11 , the U-bolt 47 and the stop or abutment 48 of the tip 42.

The access of the tip of the screwdriver 42 for the adj ustment in height, moreover, can also be provided from the opposite side of the hanging bracket 10 , therefore from behind the lining F of the furniture M passing through the opening 44'.

From what is described above with reference to the figures , it is evident that a concealed hanging bracket according to the present invention is particularly useful and advantageous . The obj ectives mentioned in the preamble of the description have therefore been achieved .

The concealed and adj ustable hanging bracket for the wall assembly of a wall cupboard according to the present invention, guarantees , in fact, an easy and stable assembly on any type of wall cupboard, whether it has an upper panel flush with the bottom panel or an upper panel flush with the side panels .

The forms and materials of the concealed and adj ustable hanging bracket for the wall assembly of a wall cupboard according to the present invention can naturally differ from those shown for purely non- limiting illustrative purposes in the drawings .

The protection scope of the invention is therefore defined by the enclosed claims .