RU2570368C2 - Hidden device for wall assembly of structural element of furniture item with lateral adjustment - Google Patents

Abstract

FIELD: personal use articles.

SUBSTANCE: invention relates to a hidden device for wall assembly of the structural element of furniture item and is aimed at improving the reliability of operation. The hidden device for mounting the structural element of furniture item on the wall, comprising a movable lever for engaging the said device to a support attached to the wall, and the position of the said levers relative to the said wall is adjustable in height and depth by means of two different control mechanisms, respectively, and these control mechanisms are completely contained inside the box body, from the front side of which the said bracket end protrudes, made in the form of a hook, and the box body consists of two halves which comprise the device fastening means, and on the side of the said box body there are also the means relative to said access mechanisms.

EFFECT: improvement of reliability in operation is achieved.

7 cl, 21 dwg

Description

The present invention relates to a hidden device for wall assembly of a structural element of a piece of furniture with lateral adjustment.

In the art, these devices are commonly known as hidden hanging brackets.

By way of non-limiting example, the invention is described with reference to a wall assembly of a wall cabinet, but can also be used for mounting upright posts (protrusions) forming part of a bookcase or other furniture.

These devices also have a function that allows you to adjust the height and depth of a piece of furniture suspended on the wall, in relation to the wall itself and adjacent pieces of furniture.

The piece of furniture is mounted on the wall using a bracket that extends from the device body and is attached to a support, for example, a rod, a pin, a plate or the like, attached to the wall.

The above adjustments in height and depth are carried out by acting on the bracket by means of various types of mechanisms that are controlled (outside the device) by means of a manipulating tool (for example, a screwdriver).

The present invention particularly relates to a so-called bracket with a central protrusion, i.e. concealed bracket, which is designed to be inserted inside the seat located inside the protrusion of a piece of furniture, for example, a cabinet or other furniture element.

European Patent Document EP 1535539 A1 describes a concealed device for wall mounting a structural element of a piece of furniture, comprising a movable lever for engaging said device with a support attached to a wall, wherein the position of said lever relative to said wall is height and depth adjustable by two different regulatory mechanisms, respectively; however, these control mechanisms are completely contained inside the box-shaped case, from the front side of which a hook-shaped end of the specified lever protrudes, said box-shaped body consisting of two halves, which, in accordance with the specified front side, contain fastening means of the device inside the seat of the specified element of a piece of furniture, while the device is configured to be inserted into the indicated seat, and on the side of the specified box-shaped body t Relative means of access to said mechanisms are also provided, in accordance with X axes lying on substantially perpendicular planes relative to the indicated side of said box-shaped body, wherein fastening means comprise a vertical rack to which said box-shaped body is attached by means of fixing means.

The so-called brackets with a central protrusion must satisfy the following basic requirements.

Firstly, their general configuration should be such as to enable easy and reliable installation inside the protrusion of a piece of furniture, even if the relative footprint is not perfectly complementary (with a perfect fit).

Secondly, their design should be such as to provide a strong and reliable fastening to the ledge of the furniture: that is, a wall cabinet under load should not easily disconnect from its seat, which will entail a fall of the cabinet.

Thirdly, the above-mentioned mechanisms for regulating a piece of furniture in height and depth should be easily accessible and made with the possibility of adjustment from the outside: i.e. even if the hanging bracket is inserted inside the ledge of the cabinet, this should be independent of the type and position of the pivot (hinged) door system relative to the cabinet itself.

A further requirement that the brackets with a central protrusion must satisfy is that they must contain mechanisms for adjusting the cabinet in height and depth, which are simple to manufacture and assemble and reliable in operation.

The main objective of the present invention is to provide a bracket with a central protrusion, which is able to satisfy the above requirements, overcoming the disadvantages of the prior art.

This goal is achieved using a device, the so-called hanging bracket with a central protrusion, having the characteristics specified in paragraph 1 and in the dependent claims of the attached claims.

The structural and functional characteristics of the present invention and its advantages over the prior art will become more apparent from the following description with reference to the accompanying drawings, which show a possible practical embodiment of the invention.

In the drawings:

1 and 2 are two perspective views illustrating, respectively, front and rear, a mounting device made in accordance with the invention, abutting against a support intended for mounting on a wall;

Figure 3 is a detail view in perspective of the device depicted in figures 1 and 2;

Figure 4 is a perspective view of the device shown in Figure 3, in assembled form, but with an open housing to illustrate the location of the cabinet control mechanisms in height and depth of the specified assembly;

Figure 5 is a vertical sectional view of the device depicted in Figure 1-4, in assembled form;

Fig.6 is a section along the line VI-VI in Fig.5;

Figures 7-10 are views illustrating an assembly system between a device body and a mounting vertical stand of the same device inside a seat located in a protrusion of a piece of furniture;

11 is a front view from above, partially illustrating a protrusion of a piece of furniture, which provides a seat for a device made in accordance with the invention;

Fig. 12 is a top view similar to that shown in Fig. 11, but in which the device is shown placed inside said seat;

Fig.13 is a section along the line XIII-XIII in Fig.12;

14 is an enlarged view illustrating how forces act on the proposed device when the cabinet is mounted on a wall;

Fig is a perspective view illustrating a cabinet having a hanging bracket with a Central protrusion, in accordance with the invention depicted in Fig.1-14; and

Figures 16-21 are views corresponding to Figures 1-6 illustrating another possible embodiment of the invention.

Figures 1-13 of the drawings illustrate a possible embodiment of the invention, in which the mounting device is indicated generally by the position number 20 and has a so-called hidden type, in particular intended to be included in an element of a piece of furniture, for example, a vertical stand or panel 21.

As already mentioned, devices of this type are widely known as hanging brackets with a central protrusion. The device 20 structurally consists of a flat rectangular housing 22, consisting of two halves 23, 24, interconnected and partially containing an engaging lever 25.

The lever 25 can be rotated around the pin 26 in the direction indicated by the arrow F, and can also move forward and backward in the direction indicated by the arrow F1 (Figure 5).

The rotation and movement of the lever 25 is controlled by two separate control mechanisms, which are indicated as a whole by the position numbers 27, 28, respectively.

The mechanism 27 serves to adjust the height (vertical) of the position of the panel 21, while the mechanism 28 serves to adjust the depth of the position (horizontal).

More specifically, as can be clearly seen in various illustrative drawings, the engaging lever 25 is in the same fork part with the shoulders 29 spaced apart, open at the rear and flat and profiled in front, restricting the hook 30 protruding through the opening 31 of the housing 22. The hook 30 is designed for engagement inside the hole 75 of the support 76, attached to the wall 77. These shoulders 29 of the lever 25, near the open rear end, have holes 32 for inserting a pin 26, on which they can be rotated.

As can be clearly seen in the drawings, the engaging lever 25 during rotation and translational movement is directed by the inner surfaces of the housing 22 (Fig.6).

The mechanism 27, which controls the rotation of the lever 25 around the pin 26, contains a screw 33, which is screwed into the hex nut 34.

For this, the rotary head of the screw is positioned in a corresponding seat 40 ′ of the indicated two halves 23, 24 of the housing, as well as a hex nut 34, which moves along the guides 39.

The screw 33 rotates inside the hex nut 34, which when moving acts on the end edge 36 of the curved portion 37, which slides inside the corresponding slots 38 of the housing 22.

The end of said portion 37, opposite 36, is buffered from the shoulders 29 of the engaging arm 25.

The screw head 33 comprises a gear head 40 with which a gear 41 engages on a pivot pin 42, the pivot axis of which is perpendicular to the pivot axis of the screw 33. The pin 42 is located inside the opening 42 ′ of the body half 23.

The seat 43 is located in the gear 41 for manipulating the tool passing through the hole 44 of the halves 24 of the housing.

Elements 33, 34, 40, 41, 42 of the above control mechanism, as can be clearly seen in the drawings, are located inside the corresponding seat formed as a result of the connection between the two halves 23, 24 of the housing, and partially indicated in FIG. 3 by the position number 45 .

The mechanism 28, which controls the movement of the lever 25, contains a screw 46, which is screwed through the threaded hole 47 of the pin 26, on which the lever 25 is rotated.

As can be clearly seen in the drawings, in particular in FIGS. 5 and 6, the movement of said screw 46 is blocked at the front end by the support 48, and at the rear end by a seat 49, on which the screw 46 itself is rotatably mounted.

More specifically, the pointed front end 50 of the screw 46 is rotatably located in the seat 51 of the support 48, while the screw head at the opposite end includes a gear head 52 by which the gear 53 engages, which can rotate on the pin 54, the rotary axis which is perpendicular to the rotary axis of the screw 46. The pin 54 is located in the hole 54 ′ of the halves 23 of the housing.

The seat 55 is located in the gear wheel 53 for manipulating the tool passing through the hole 35 of the half 24 of the housing.

The screw 46 is rotatably supported in accordance with the gear head 52 inside the slit 56 of the support 49, which, in turn, is tightly inserted inside the seat 57 formed by the connection between the two halves 23, 24 of the housing.

The elements of the control mechanism 28 described above, as can be clearly seen in the drawings, are located inside the corresponding seat formed as a result of the connection between the two halves 23, 24 of the housing, and this seat is partially indicated in FIG. 3 by reference numeral 58.

The halves 23, 24 of the housing are firmly connected to each other by means of a large number of pins 59, contain the kinematic mechanisms described above.

The housing 22 described above contains mechanisms 27, 28 for adjusting, respectively, the height and depth of the panel 21 (and, therefore, the cabinet, of which the panel 21 can be a part), distinctively also contains a box-shaped vertical rack 60 for attaching the suspension bracket 20 with a central protrusion to panel 21, as described below.

The specified vertical strut 60 structurally consists of a core 61, reinforced along the perimeter of the edge 62, connected at the ends, as can be clearly seen in the drawings.

The core 61 of the upright 60 has an opening 63 in which the flat rectangular bracket body 22 is assembled and secured (Figs. 7-10).

For this, the box-shaped holding tooth 64 protrudes, in accordance with the edge of the housing 22, above the hook 30, which limits, in the same housing 22, the gap 65.

The fixing pin 66 extends, in accordance with the edge of the housing 22, under the hook 30.

Thus, the housing 22 can be attached to the upright 60, in accordance with the hole 63, as shown by the sequence of operations in Fig.7-10, i.e. first, by inserting the tooth 64 through the hole 63, and then inserting the slit 65 into the core 61, and the pin 66 into the hole 67 of the core 61 itself. Finally, the pin 66 is riveted, as shown by reference number 68, to the core 61 itself so as to obtain a strong , a stable and secure connection between the housing 22 and the upright 60 (Figs. 5, 10, 13).

As can be clearly seen in the drawings, the hole 63 has an eccentricity, that is, it is located closer to the upper end of the upright 60, with respect to the lower end.

In the upright 60, two levers B1 and B2 are provided, respectively, longer and shorter, whose very important role will be described below.

The lever B1 is located under the housing 22, while the lever B2 is located above the housing.

The pendant arm 20 with a central protrusion, as described above, is firmly attached to the panel 21 as follows, with particular reference to FIGS. 11-14.

The seats 69, 70 are located in the panel 21, which also houses the housing 22, and the mounting vertical rack 60 of the suspension bracket 20, also with a gap (see Fig. 14 on an enlarged scale).

The suspension bracket 20 is firmly fixed in place by a box-shaped vertical stand 60, which is screwed to the panel 21 by a large number of screws 71 passing through the holes 72 of the core 61 of the vertical stand 60 itself.

Fig. 15 illustrates, by way of non-limiting example, a hidden hanging bracket with a central protrusion made in accordance with the invention, included inside the protrusion 21 of the wall cabinet M.

The closet M has a door A pivotally mounted by means of a rotary system S of a known type, which allows it to be rotated (around a horizontal axis) up (opening) and vice versa (closing).

As can be clearly seen from the enlarged parts shown in FIG. 15, despite the burdensome pivoting system S of door A, which actually makes the hanging bracket of the visible type inaccessible from the front (see, for example, European Patent Application No. 0033179), a hidden hanging the bracket with a central protrusion made in accordance with the invention is easily accessible from the side by manipulating a screwdriver C, which is inserted through the holes 73, 74 in the panel 21, which are aligned with the holes 44, 35 in the half 24 of the housing 22 ( Fig. 15), in accordance with the X axes that lie on planes substantially perpendicular to the sides 78 of the box body 22.

Thus, access is provided to mechanisms 27, 28 that control the height and depth of the piece of furniture M, as described above.

The height and depth of the cabinet M with respect to the wall 77 (as well as possibly with respect to other adjacent pieces of furniture not shown in the drawings) are adjusted by acting on the gear, 41 and 53, respectively.

The rotation in one or the other direction of the gear wheel 41 (and the head 40), in fact, causes the lever 25 to rotate around the pin 26, due to the rotation of the screw 33 and the movement of the curved portion 37 pushed by the sliding sleeve 34.

The lever 25, in fact, is always in contact with the part 37, due to the weight of the cabinet, of which the panel 21 is a part.

On the other hand, turning in one or the other direction of the gear wheel 53 (and the head 52) causes the lever 25 to move by tightening the screw 46 into the hole 47 of the pin 26, which, therefore, is moved forward and backward as a unit with the lever 25 .

The seats 43 and 55 of the gear 41 and 52 are accessible for a manipulating tool (eg, a screwdriver) inserted through the corresponding coaxial holes 73 and 74 located in the panel 21 (FIG. 15).

Fig. 14 shows, on an enlarged scale, how, thanks to a hidden hanging bracket with a central protrusion made in accordance with the invention, the serious problem of disconnecting the housing 22 of the hanging bracket from the corresponding seat 69 is solved, even if the latter is not precisely sized.

The problem is solved by fastening the vertical strut 60 with levers B1 and B2, respectively, longer and shorter, which prevent the panel 21 from turning clockwise (under voltage F1) around the hinge point P, due to the action of the force with components R1, R2 and R3 , and the resulting moment M1 forces.

Of great importance for this purpose is the interaction between the core 61 and the perimeter edge 62 of the box-shaped mounting vertical strut 60.

Figures 16-21 show yet another possible embodiment of the invention, wherein the elements are the same or substantially equivalent to those illustrated in Figures 1-15 are denoted by the same reference numbers increased by 100.

The difference between the first and second embodiment of the present invention (shown in FIGS. 16-21) is that in the second embodiment, the provided vertical mounting post 160 of the device 120 for attaching to the panel 21 is characterized in that it is made in one piece with a half 123 of the flat case 122. This embodiment is illustrated with candy reference to FIGS. 18, 19 and 20 of the drawings.

The manufacture of the upright 160 in one piece with the half 123 forms a recess 200 in it, in which the flange 201 of the half 124 is located, which, thus, is firmly fixed to 123 using pins 159.

Therefore, the goals indicated at the beginning of the description are achieved.

The scope of the invention is determined by the following claims.

Claims (7)

1. A hidden device (20, 120) for mounting a structural element (21) of a piece of furniture (M) on a wall (77), comprising:
a movable lever (25, 125) for engaging said device with a support (76) attached to a wall (77), wherein the position of said lever (25, 125) with respect to said wall (77) is adjusted in height and depth by, respectively, two different control mechanisms (27, 127; 28, 128) that are completely contained inside the box-shaped case (22,122), from the front side of which a hook-shaped end (30, 130) of said lever (25, 125) protrudes, said box-shaped the housing (22, 122) consists of two halves (23, 123; 24, 124), which are inside and the seat (69, 70) of the specified item (21) of the piece of furniture (M), in accordance with the specified front side, contain fixing means (60, 160) of the device (20, 120), while the device (20, 120) is made with the possibility of insertion into the indicated seat (69, 70), moreover, on the side (78, 178) of the indicated box-shaped housing (22, 122), relative means (44, 144; 35, 135) of access to the indicated mechanisms are also provided (27, 127 ; 28, 128), in accordance with X axes lying on essentially perpendicular planes relative to the indicated side (78, 178) of the indicated box-shaped body (22, 122), the fixing means (60, 160) comprising a vertical rack to which the box-shaped body (22) is fastened by means of fixing means (64, 65, 66, 67, 68), while the vertical strut (60) is box-shaped and contains a core (61) and a reinforced perimeter edge (62),
characterized in that said fixing means (60, 160) comprises, in combination: a box-shaped holding tooth (64) protruding in accordance with the edge of the housing (22) above the hook (30) and delimiting a slot (65) in said housing (22) , a fixing pin (66) protruding in accordance with the edge of the housing (22) under the hook (30), and an opening (63) made in the core (61) of the upright (60), the housing (22) attached to the specified hole ( 63) by connecting the specified slot (65) with the specified core (61), and the specified pin (66) with the hole (67) of the heart itself ins (61), wherein the pin (66) riveted (68) at said opening. 2. The device according to claim 1, characterized in that the housing (22) is attached to the upright (60) in the eccentric position with the formation of two levers (B1 and B2), respectively, longer and shorter, located respectively lower and higher than the specified housing (22). 3. The device according to claim 1, characterized in that the core (61) of the upright (60) has holes (72) for passing the mounting screws (71) designed to attach the wall cabinet holder to the specified item (21) of the piece of furniture (M ) 4. The device according to claim 1, characterized in that said regulation mechanism (27) comprises, in combination: a screw (33, 133), which is adapted to be screwed into the hex nut (34, 134), which acts on the end edge (36, 136) of the curved part (37, 137) made with the possibility of sliding inside the corresponding slit (38, 138) of the housing (22, 122), the end of the specified part (37, 137), opposite the edge (36, 136), separated from the shoulders (29, 129) of the engaging lever (25, 125), the screw head (33, 133), opposite the hole (35, 135), contains a gear head at (40, 140), with which a gear wheel (41, 141) interacts, mounted rotatably on a pin (42, 142), whose rotary axis is perpendicular to the rotary axis of the screw (33, 133), while the pin (42, 142 ) is located inside the hole (42 ', 142') of the body half (23, 123), and in the gear wheel (41, 141) there is a seat (43, 143) for manipulating the tool passing through the hole (44, 144) of the other half (24, 124) of the body, and the elements (33, 34, 40, 41, 42, 133, 134, 140, 141, 142) of the above control mechanism are located inside the corresponding landing month and (45, 145) formed by joining two halves (23, 123; 24, 124) of the housing. 5. The device according to claim 1, characterized in that said regulation mechanism (28, 128) comprises, in combination: a screw (46, 146) made with the possibility of screwing through a threaded hole (47, 147) of a pin (26, 126) on which the lever (25, 125) is mounted with the possibility of rotation, and the movement of the specified screw (46, 146) is blocked at the front end by a support (48, 148), and at the rear end by a second support (49, 149), on which the screw (46, 146) is rotatably mounted, the front end (50, 150) of the screw (46, 146) being rotatably located inside the seat ( 51, 151) of the support (48, 148), while the head at the opposite end contains a gear head (52, 152) with which a gear wheel (53, 153) interacts, rotatable on a pin (54, 154), rotatable whose axis is perpendicular to the rotary axis of the screw (46, 146), while the pin (54, 154) is located inside the hole (54 ', 154') of the half (23, 123) of the housing, there is a seat in the gear wheel (53, 153) ( 55, 155), designed to manipulate the tool passing through the hole (35, 135) of the other half (24, 124) of the housing, in accordance with the gear goal sheep (52, 152), and the screw (46, 146) with the possibility of rotation is supported inside the slot (56, 156) of the second support (49, 149), which, in turn, is firmly inserted into the seat (57, 157), formed by joining two halves (23, 123; 24, 124) of the housing, while the elements of the specified control mechanism (28, 128) are located in the corresponding seat (58, 158) formed by connecting the two halves (23, 123; 24, 124) of the housing, and the halves (23, 123 ; 24, 124) are firmly mutually connected to each other by means of pins (59, 159) and contain the indicated kinematic mechanisms. 6. The device according to claim 1, characterized in that the said mounting means (160) is a vertical rack, made as a unit with the specified half (123) of the flat case (122). 7. The device according to claim 1, characterized in that the said fixing means (160) limits the recess (200) in the indicated half (123) of the housing, in which the flange (201) of the half (124) of the housing is located, thereby firmly attaching it to half (123) with pins (159).

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