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Title:
PERFECTED HIDDEN HANGING BRACKET
Document Type and Number:
WIPO Patent Application WO/2012/163441
Kind Code:
A1
Abstract:
A hidden hanging bracket (80) comprising a base (81) from which a hooking element (89) of the hanging bracket (80) extends to a support (90) fixed to a wall (P), said hooking element (89) consisting of a head (91) of a screw (92) screwed onto a slide (93A-H) with sliding seats (112A-H) which can be translated on guides (94) of said base (81). According to the invention said slide (93A-H) is made of a single metal piece through consecutive processing operations of a starting rough sketch (95A-H), said starting copy comprising two supporting sections (96A-H, 97A-H), interconnected by an intermediate hinge (98A-H), and terminating, at one end, with a tongue (99A-H) containing a threaded hole (100A-H).

Inventors:
CATTANEO, Carlo (Via Leonardo da Vinci 5, Figino Serenza, I-22060, IT)
Application Number:
EP2012/001255
Publication Date:
December 06, 2012
Filing Date:
March 21, 2012
Export Citation:
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Assignee:
LEONARDO S.R.L. (Via Leopardi 8, Figino Serenza - Como, I-22060, IT)
CATTANEO, Carlo (Via Leonardo da Vinci 5, Figino Serenza, I-22060, IT)
International Classes:
A47B95/00
Domestic Patent References:
WO2001054543A1
Foreign References:
EP2149316A1
DE20314821U1
EP2011001593W2011-03-29
Attorney, Agent or Firm:
MARTEGANI, Franco (Via Carlo Alberto 41, Monza, I-20900, IT)
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Claims:
CLAIMS

1. A hidden hanging bracket (80) of the type comprising a base (81) from which a hooking element (89) of the hanging bracket (80) extends to a support (90) fixed to a wall (P) , said hooking element (89) consisting of a head (91) of a screw (92) screwed on a slide (93A-H) with sliding seats (112A-H) which can be translated on guides (94) of said base (81) , characterized in that said slide (93A-H) is made of a single metal piece through consecutive processings of a starting rough sketch (95A-H) , said starting sketch comprising two supporting sections (96A-H, 97A-H) , interconnected by an intermediate hinge (98A-H), and terminating, at a end, with a tongue (99A-H) carrying a threaded hole (100A-H) .

2. The hanging bracket according to claim 1, characterized in that said rough sketch (95A-H) is flat.

3. The hanging bracket according to claim 1, characterized in that said rough sketch (95D) has a bent section (96D) , so as to form a central ridge (114D) and two side flaps (115D) .

4. The hanging bracket according to claim 1, characterized in that the sections (96E) and (97E) of said rough sketch (95E) , interconnected by the hinge (98E), are reciprocally offset, so as to define said sliding seats (112E) of the guides (94) of the base (81) , an end section (116E) bent at 90° around a hinge (117E) also extending, for this purpose, from the section (97E) .

5. The hanging bracket according to claim 1, characterized in that said rough sketch (95A-H) is bent so as to define sliding seats (112A-H) on said guides (94) of the base (81) .

6. The hanging bracket according to claim 1, characterized in that said rough sketch is bent around said hinge so that said sections ( 96A, B , C, F, G; 97A,B,C,F,G) are superimposed, parallel, interspaced by a distance "d" substantially the same as the thickness of said slides (94) of the base (81) .

7. The hanging bracket according to claim 1 and 6, characterized in that both the anti-disengagement bead (108) and the screw (92) are screwed through both of said sections (96G, 97G) .

8. The hanging bracket according to claim 1, characterized in that threaded holes (101A-H, 102A-H) are produced in said rough sketch (95A-H) for said screw (92) .

9. The hanging bracket according to claim 1, characterized in that threaded holes (100A-H) are produced in said rough sketch (95A-H) for a control bead (110) of the translation of the slide (93A-F) .

10. The hanging bracket according to claim 1, characterized in that coaxial threaded holes (104A-F, 107A-F, 103A-F) are produced in said rough sketch (95A- E) for an anti-disengagement bead (108) .

11. The hanging bracket according to any of the previous claims, characterized in that the passage holes of said screw (92) are deep-drawn.

Description:
PERFECTED HIDDEN HANGING BRACKET

The present invention relates to a hidden hanging bracket, assembled at the back of the lining of a piece of furniture and fixed to the shoulder and possibly also at the top of the same piece of furniture.

More specifically, the hanging bracket in question is of the type comprising a base from which a hooking element of the hanging bracket extends to a support, which is fixed to the wall and can be of any type, for example a plate, a bar, or the like.

Said hooking element can be moved horizontally and is assembled on a slide which can be moved vertically; in this way its position can be regulated in depth (horizontally) and in height (vertically) .

A hanging bracket of this type is described and illustrated, for example, in patent application PCT/EP2011/001593, filed on 29-03-2011, in the name of the same Applicant.

In hanging brackets such those briefly described above, the slide and relative guides, positioned on the base, have often proved to be the weak elements of the system, especially if the hanging bracket is required to support significant loads.

In particular, the breakage of the slide and/or the guides, can cause the cupboard to fall disastrously with all the evident serious risks of damage to objects and/or people, as a result thereof.

The general objective of the present invention is to overcome the drawbacks of the known art by providing a hidden hanging bracket of the type mentioned above, wherein the slide has a structure which is such as to resist, without any problem, even extremely onerous loads and stress.

The above objective is achieved by a hanging bracket having the characteristics specified in the enclosed claim 1 and subclaims.

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 various embodiments of the invention. In the drawings:

figure 1 is a raised front view according to the arrow A of figure 2, illustrating a hanging bracket produced according to the invention;

- figure 2 is a section taken according to the traces

II -II of figure 1 /

figure 3 is a section taken according to the traces

III- III of figure 1;

figures 4 and 5 are two perspective views from the front and back, respectively, illustrating the slide of the hanging bracket of figures 1-3 equipped with an anti -disengagement system;

figures 6-10 are five isometric views of the slide of figures 4 and 5 ;

figure 11 is a section taken according to the traces B-B of figure 6;

figure 12 is flat development of the starting metal plate for producing the slide of figures 6-11;

figures 13 and 14 are two perspective views, from the front and back, respectively, illustrating a second possible embodiment of the slide equipped with an anti -disengagement system;

figures 15-19 are five isometric views of the slide of figures 13, 14;

figure 20 is a section taken according to the traces C-C of figure 15;

figure 21 is an enlarged detail of figure 20;

figure 22 is a flat development of the starting metal plate for producing the slide of figures 13-21; figures 23 and 24 are two perspective views, from the front and back, respectively, illustrating a third possible embodiment of the slide equipped with an anti-disengagement system;

figures 25-29 are five isometric views of the slide of figures 23, 24;

- figure 30 is : a section taken according to the traces D-D of figure 25; figure 31 is a flat development of the starting metal plate for producing the slide of figures 23-30; figures 32-35 are perspective views illustrating the folding phases of the flat development (sketched) of figure 31 for obtaining the slide of figures 23, 24;

figures 36-39 are sectional views illustrating the same operative phases as figures 32-35;

figures 40 and 41 are two perspective views, from the front and back, respectively, illustrating a fourth possible embodiment of the slide equipped with an anti -disengagement system;

figures 42-46 are five isometric views of the slide of figures 40, 41;

- figure 47 is a section taken according to the traces E-E of figure 42;

figure 48 is a section taken according to the traces F-F of figure 45;

figure 49 is a section like figure 3 illustrating the application of the slide of figure 48 to the hanging bracket ;

figure 50 is a flat development of the starting metal plate for producing the slide of figures 40-47; figures 51 and 52 are two perspective views, from the front and back, respectively, illustrating a fifth possible embodiment of the slide equipped with an anti -disengagement system;

figures 53-57 are five isometric views of the slide of figures 51, 52;

figure 58 is a section taken according to the traces F-F of figure 53;

figure 59 is a section taken according to the traces G-G of figure 56;

figure 60 is a flat development of the starting metal plate for producing the slide of figures 51-59; - figure 61 is a view like figure 1 illustrating the slide of figures 51-60 assembled on the hanging bracket ;

figure 62 is a section taken according to the traces H-H of figure 61;

- figure 63 is a section taken according to the traces I-I of figure 61;

figure 64 is an enlarged sectional detail of the slide of figure 62;

figures 65 and 66 are two perspective views, from the front and back, respectively, illustrating a sixth possible embodiment of the slide without the anti- disengagement system;

figures 67-71 are five isometric views of the slide of figures 65-66;

- figure 72 is a section taken according to the traces L-L of figure 67; figure 73 is an enlarged detail of figure 72;

figure 74 is a flat development of the starting metal plate for producing the slide of figures 65-73; figures 75 and 76 are two perspective views, from the front and back, respectively, illustrating a seventh possible embodiment of the slide equipped with an anti-disengagement system;

figure 77 is a raised front view of the slide of figures 75, 76;

figure 78 is a section taken according to the traces M-M of figure 77;

figure 79 is a section like figure 78, but illustrating the slide assembled with the regulation screws in height and depth of the hanging bracket, and with the anti -disengagement bead;

figures 80 and 81 are two perspective views, from the front and back, respectively, illustrating an eighth possible embodiment of the slide equipped with an anti-disengagement system;

figure 82 is a raised front view of the slide of figures 80, 81; and

figure 83 is a section taken according to the traces N-N of figure 82.

With main reference to figures 1-3 of the drawings, a hidden hanging bracket according to the invention is indicated as a whole with 80 and comprises a metal flange, or shaped base 81, which can have different geometrical configurations.

Said base 81 has a perforated transversal top edge 82, and perforated longitudinal side edges 83, which are fixed, by means of screws 84, 85, respectively to the top 86 and the shoulder 87 of a piece of furniture M, for example a wall cupboard only partially illustrated .

As can be clearly seen from figures 2 and 3 of the drawings, the base 81 is positioned at the back of a lining 88 of the cupboard M, oblique screws 84 also passing through said lining 88.

The base 81 can be fixed to the shoulder 87 with pegs, instead of screws, which extend laterally from the base 81.

A hooking element 89 of the hanging bracket 80 extends perpendicularly from the base 81 to a support 90 fixed to a wall P.

The support 90 can be of any type, for example a plate, a bar, or an equivalent support. The hooking element 89 is composed of the head 91 of a screw 92 and can be translated horizontally in the directions of the arrow F, and vertically in the directions of the arrow Fl .

For this purpose, the hooking element 89 is screwed onto a slide 93A, which represents the core of the present invention, and which can be translated on a pair of interspaced side guides 94 obtained from the base 81.

Figures 4-12 show a first embodiment of the slide 93A incorporating the innovative principles of the invention .

Said slide 93A is structurally produced in a single metallic piece, and is produced starting from a flat rough copy 95A (figure 12) .

The rough copy 95 has two equal supporting sections

96A, 97A, which are interconnected by an intermediate hinge section 98A, and terminates, at one end, with a tongue 99A which is perforated and threaded as in 100A.

The sections 96A, 97A in turn have pairs of holes 101A, 102A, 103A and 104A, having a larger and smaller diameter respectively.

The rough copy 95A, as described above and illustrated in figure 12, is folded around the hinge 98A with the sections 96A, 97A superimposed, parallel, and interspaced by a distance "d" substantially equal to the thickness of the guides 94 of the base 81 (figures 7, 8, 10 and 11), and with the pairs of holes 101A, 102A and 103A, 104A opposite and coaxial (figure 11) .

The pairs of holes 101A, 102A and the hole 104A are threaded, as in 105A, 106A and 107A (figure 11) , whereas the hole 103A does not need to be threaded, and has a larger diameter than the coaxial hole 104A, for the reason explained hereunder.

The most suitable procedures and sequences of the above perforating, bending and threading operations of the rough copy 95A, are not described herein in further detail as they are already known to experts in the field and therefore do not form part of the present invention .

As can be clearly seen in the figures, the screw 92 of the hooking element 89 is screwed through the holes 101A, 102A; an anti-disengagement bead of the hanging bracket is screwed through the hole 104A (passing through the non-threaded hole 103A) , said bead 108, for this purpose, being engaged with an undercut 109 of the support 90; and an oblique bead 110, which controls the translation of the slide 93A, by rotating against a corresponding buffer 111 obtained from the base 81, is screwed through the hole 10OA.

The mechanisms described above for regulating the depth (horizontal) and height (vertical) of the hooking element 89 are, as already specified, well known to experts in the field, whereas the structure of the slide 93A is innovative.

More specifically, the parallel, : interspaced, superimposed sections 96A, 97A define a coupling seat 112A which slides with the guides 94 of the base 81, said coupling obtained on a large supporting surface, thus ensuring the stability of the system also when subjected to significant loads.

The slide 93B illustrated in figures 13-22 has a general structure substantially equal to that of the slide 93A.

The only difference is that, as the threading 105B is produced through a funnelled hole 101B, it has a greater number of threads than the threading 105A of the hole 101A.

This guarantees an even greater resistance of the system when under stress.

Another difference is the flared seat 113B of the hole 101B, which facilitates the introduction of the screw 92.

In the embodiment of the slide 93C of figures 23- 39, on the other hand, the funnelled hole 101C is deeper, so that it can be freely inserted into a non- threaded hole 113C, having a larger diameter situated in the section 97C.

The slide 93D of figures 40-50, instead of being produced starting from a completely flat rough copy, such as that of the slides 93A-C, it is produced starting from a rough copy 95D in which the section 96D is folded, thus defining a central ridge 114D and two side flaps 115D. <

The sections 96D and 97D are folded over each other, as can be clearly seen in figures 47 and 48, thus defining side seats 112D sliding on the guides 94 of the base 81.

The slide 93E of figures 51-64 is produced starting from a rough copy 95E whose sections 96E and 97E, interconnected by a hinge 98E, instead of being folded over each other, are reciprocally offset (figures 51 and 52) , thus defining the sliding seats of the guides 94 of the base 81. For this purpose, there is also a terminal stoppage section 116E that extends from the section 96E and bent at 90°C around a hinge 117E (figure 64 ) .

The slide 93F of figures 65-74 is substantially identical to the slide 93B of figures 13, 22: the only difference is the absence of the hole 104B for the anti -disengagement bead 108.

The slide 93G of figures 75-79 envisages that the passage hole of the anti-disengagement bead 108 is also threaded as in 104G. Consequently, the bead 108 and screw 92, when screwed in an operative position on the slide 93G, by interconnecting the interspaced sections 96G and 97G (figure 79) define a rigid, extremely robust structure, even when produced with a relatively thin starting copy. The slide 93H of .figures 80-83, on the other hand, is totally without the hole 103A (present in the embodiment of figures 4-12) for the passage of the anti-disengagement bead. The section 96H is therefore shorter, as can be clearly seen in the drawings.

The objective mentioned in the preamble of the description has therefore been achieved.

The protection scope of the present invention is consequently delimited by the enclosed claims.