RU2694294C2 - Concealed device for fastening furniture item to wall and structural element of furniture piece comprising said device - Google Patents

Abstract

FIELD: furniture.SUBSTANCE: invention relates to a flush device for attachment of a structural element of a piece of furniture to a wall. Hidden device comprises box-like housing, in which first and second adjustment mechanisms are arranged, respectively, in height and depth, provided with first and second adjustment screws, respectively, each having a head comprising a gear crown. Box housing has at least one access hole for each screw, which extends radially relative to the gear crown and terminates at the bit to allow direct interaction in the radial direction of the gear crown with the tool.EFFECT: invention is aimed at improvement of device versatility.10 cl, 6 dwg

Description

This invention relates to a secret device, the so-called "shoulder-centered" device for fastening a structural element of a piece of furniture to a wall.

Devices “centered on the shoulder” are designed to be placed in the shoulder of a piece of furniture that has a corresponding recess.

In the art, these devices are also often referred to as flush mount brackets.

Further, as a non-limiting example, the description of the present invention is given with reference to the wall-mounting of a wall-mounted cabinet, but it can also be used to mount vertical racks (shoulders) that form part of a bookcase or other piece of furniture.

These devices also provide the ability to control the height and depth of the piece of furniture mounted on the wall relative to this wall and adjacent furniture.

An example of such devices is described in European patent document EP 2627215, filed on behalf of the applicant of the present invention.

The installation of the wall cabinet is carried out using a lever that extends from the device body and is designed with the possibility of hook coupling with a support, for example, with a rod, pin, bar or similar element attached to the wall.

The above adjustment in height and depth is performed by acting on the specified lever using mechanisms of various types that are adjustable (outside this device) using a manipulator (for example, a screwdriver, socket wrench, etc.).

When hanging hinged brackets of the secret type, various difficulties arise, for example, due to the installation location in the recess of the indicated shoulder.

Obviously, to access the recess from the outside, especially with the use of a tool, various actuators should be provided or even different configurations of the specified device depending on its application on the right or left side of the cabinet, or depending on the need to locate the cabinet close to the wall or ceiling (which will make it difficult to control the tool).

More specifically, with regard to the device described in European patent document EP 2627215, it should be noted that it is made with the possibility of actuating only one of these two sides, depending on the location and availability of gear wheels that interact with the adjusting screws, which turn interact with the corresponding hook.

In addition, the manufacture of this device is relatively complicated, since to ensure that the adjusting screws can be brought into rotation, there must be suitable gears on the sides, and the corresponding socket must be made in the housing of this device with respect to manufacturing tolerances, which must be determined for ensure the rotation of the gear and its proper location relative to the screw head, otherwise - also due to the relatively large forces acting in the process of regulation (due to the weight of the specified cabinet) - premature wear or breakdown of the teeth of the specified gear wheel and the screw may occur.

Thus, the main purpose of this invention is to create a hinged bracket, centered on the shoulder, which is versatile and relatively simple to manufacture.

Another object of the present invention is to provide a hinged bracket that is adapted to be adjustable in several different directions of access.

This goal is achieved through the device, the so-called hinged bracket, centered on the shoulder, having the features described in paragraph 1 of the claims and the dependent clauses.

The first embodiment of the invention is the said device, and the second embodiment of the invention relates to a structural element of the piece of furniture containing this device.

The idea underlying the invention is to abandon gears and to provide the possibility of bringing into rotation of the adjusting screws with a gear crown, which is made with the possibility of direct (ie not requiring additional intervention) interaction with the specified tool. To this end, at least one access hole for each screw is made in the box body, which extends radially relative to the crown and ends near it.

The structural and functional features of the invention, as well as its advantages over the prior art, will become more apparent from the following description, which contains references to the accompanying drawings, which illustrate a possible embodiment of the invention.

In the drawings:

FIG. 1 depicts a side view in section of the proposed assembled device, located in the corresponding recess of the cabinet;

FIG. 2 and 3 depict this device in a section made, respectively, along the cutting planes AA and BB, indicated in FIG. one;

FIG. 4 and 5 are fragmentary sectional views of the device shown in the previous drawings;

FIG. 6 shows in detail the details of the device shown in the previous drawings.

The terms “vertical” and “horizontal” used in the following description refer to the operating state of this device and should be interpreted in a general sense.

As for the main features, this invention comprises a secret device for fastening a structural element of a piece of furniture to a wall; This device contains a box-shaped case in which the first and second control mechanisms of the structural element, respectively, in height and depth (and, respectively, the piece of furniture attached to it) are placed, containing, respectively, the first and second adjusting screws, each of which has a head with a gear crown, providing the possibility of actuating the screw and, consequently, the corresponding control mechanism.

In a typical embodiment of the invention, at least one access hole 91, 92, 93, 95, 96, 97 is made for each screw 33, 46 in the box-shaped housing 22, which extends radially relative to the crown and ends at said crown, ensuring immediate interactions in the radial direction of the specified toothed crown with the tool U.

In the main embodiment (not shown) there is only one access hole, while in other embodiments (not shown), in the housing 22, two holes 91, 92 are provided for each screw 33, 46; 95, 96, extending in the radial direction relative to the specified jagged crown, providing at least two separate directions of access, aligned with each other and lying in a common orthogonal plane relative to the axis of rotation of the corresponding screw 33, 46.

In the preferred embodiment illustrated in the drawings, the device 20 also under each screw 33, 46 (in addition to the above aligned holes) made at least a third access hole 93, 97 extending in a radial direction relative to said gear crown, providing a third access direction lying in the same plane as the indicated two directions of access, and passes at an angle of 90 ° relative to the directions indicated.

Thus, the crown is arranged to interact in the radial direction with the tool in at least three separate directions of access, converging at an angle of 90 ° relative to the axis of rotation of the corresponding screw.

These directions of access pass radially relative to the axis of rotation of the corresponding screw, thus allowing the actuating of an appropriate control mechanism acting on different sides of the said body, for example, on the sides (right, left) or on top in accordance with the indicated directions of access.

Thus, a device is proposed that has a relatively simple and reliable design that is extremely versatile, since it can be operated in accordance with various directions of access.

Under each screw, preferably three access holes are made, each of which extends in said housing along a separate access direction, with the openings for one screw extending in pairs parallel to the openings for the other screw.

If the body is essentially parallelepiped in shape, said pairs of parallel holes pass at least on two opposite sides of the body, providing access from the side (right, left).

If the body is made up of joined halves, said holes are made in pairs in said halves; while another hole for each screw is formed by the connection of two recesses facing each other, each of which is made in the corresponding half.

In general, the invention also relates to a structural element of a piece of furniture having a seat for accommodating a device in accordance with one or more claims and corresponding sockets made in the walls of this element, communicating with said socket, moreover, when the device is in assembled condition, at least one of said sockets is aligned with said access openings provided for each screw.

FIG. 1-5 depict a possible embodiment of the invention, wherein said assembled device is generally designated with the position number 20 and is a device of the so-called secret type, intended in particular for placement in a structural element of a piece of furniture, for example, in a vertical rack or panel 21.

As indicated above, in this field of technology, devices of this type are commonly referred to as hinged brackets centered over the shoulder.

The device 20 comprises a flat rectangular case 22 comprising two halves 23, 24 connected to each other, while in the said case partially engaging lever 25 passes.

In turn, the lever 25 in the working position with the gearing is suspended on a support 74 attached to the wall.

The lever 25 mounted to rotate on the hinge 26, is also designed to move back and forth relative to its longitudinal direction, providing the possibility of adjusting the height and depth of the wall cabinet.

Regulation of the rotation and movement of the lever 25 is provided by two separate mechanisms of regulation, indicated in General by the numbers 27, 28 positions.

The mechanism 27 is designed to regulate the height of the panel 21, and the mechanism 28 is designed to regulate the depth of the panel.

More specifically, the lever 25 preferably has a fork shape and is made as a single element with spatially separated branches, which is open at the back, flattened and molded from the front to form a hook 30 protruding through an opening in the housing 22.

The lever 25 is pivotally attached to the hinge 26, in particular, in relation to the design of this type, preferably, but not exclusively, in the branches of the lever 25 near the open rear end there are holes for accommodating the hinge 26, which allows them to rotate.

The rotation and movement of the lever 25 is preferably limited to the inner surfaces of the housing 22.

The mechanism 27, ensuring the rotation of the lever 25 around the hinge 26, contains a screw 33, screwed into the hexagon chassis nut 34.

To do this, the head of the specified screw can be rotated in the corresponding slot of the halves 23, 24, as well as the hexagon nut 34, which is mounted for movement on the rails, also made in the halves 23, 24.

The end of the screw 33, located on the opposite side of the molded head, resulting in movement of the specified screw, interacts with the end edge of the curved part 37, which slides inside the corresponding guide groove of the housing 22.

The opposite end of the part 37 passes at a distance from the lever 25, preferably at a distance from its branches.

The head 35 of the screw 33 contains a gear crown, made with the possibility of bringing it into rotation when the head interacts with the tool U, providing the opportunity to access the head 35 in the radial direction relative to the axis of rotation of the screw 33.

In the example above, the U tool is a figure screwdriver, but other similar types of screwdrivers can also be used, such as flat, hex, star-head screwdrivers, or similar. In this case, select the appropriate shape of the head 35, which, in any case, made with the possibility of interaction with the tool in the radial direction, as described above.

In any case, the principle of the interaction of two components (head 35 and tool U) is based on mechanical interaction, which is essentially known, therefore, a specialist can determine the most appropriate head shapes within the scope of protection of the invention.

In accordance with the above, as well as to eliminate the above disadvantages, the gear crown passes around the entire circumference of the head 35 of the screw 33, making it possible to bring it into rotation by means of the tool U when it is inserted from above (as shown in the drawings) or from either of two opposite sides .

To enable the tool U to access the head 35 in the housing 22, access holes (or grooves) are made, in particular, an upper opening 93 and two side openings 91, 92.

These holes are aligned with each other, with each of them made in half 23, 24 and open to the side, ensuring that two corresponding slots 101, 102 are located opposite each other, made in the walls of the element 21 and aligned with each other and with the indicated holes 91, 92, enabling the rotation of the screw 33 on opposite sides with the tool U.

Said upper opening extends substantially perpendicularly to the openings 91, 92 and is substantially aligned with the socket 103 formed in the element 21, and communicates with it, allowing the screw 33 to be rotated from above by means of the tool U.

Thus, in general, the possibility of adjusting the height of the wall cabinet is provided by the mechanism 27 by means of the specified tool from either side (right or left) or on top.

As for the dentate crown illustrated in detail in FIG. 6, preferably, but not necessarily, its teeth have a substantially triangular part (or trapezoidal part), with the apex of the triangle (or the smaller base of the trapezoid) facing the axis of rotation of the screw.

The mechanism 28, providing regulation of the movement of the lever 25, contains a screw 46, screwed through the threaded hole of the hinge 26, which rotates the lever 25.

As clearly seen in the drawings, the possibility of moving said screw 46 at the front end is prevented by means of the support 48, and at the rear end by means of the same slot as, for example, in the housing 22.

The front end of the screw 46 is preferably rotatably placed in the seat of the support 48, while the head 49, made at the opposite end, contains a toothed crown, similar to the toothed crown of the head 35 of the screw 33, further description of which is not given for brevity, the head 49 of the screw 46 provides the ability to bring it into rotation when interacting with the tool U, which provides access to the head 49 in the radial direction relative to the axis of rotation of the screw 46.

As indicated above, in order to allow the access of the tool U to the head 49 in the housing 22, access holes (or slots) are made, in particular, an upper hole 97 and two side openings 95, 96.

Initially, it should be noted that in an alternative embodiment, the top holes 93 and 97 (illustrated as a non-restrictive example, as separate and distinct from each other) can also be made in the form of one hole, wider and providing access to the heads 35 and 49 of screws 33 and 46. In the presence of one hole, guide means for the tool are preferably provided to ensure that it interacts with the screw head that needs to be rotated: an example of such This guide may be a profiled flap, etc.

On the other hand, if there are two upper holes 93, 97, they act as guides for the specified tool, especially when the tool has dimensions close to the holes of 93, 97, ensuring the tool is centered on the corresponding gear crowns of the heads 35 and 49.

The two upper holes 93, 97 are parallel to the housing 22 and have different lengths, since they pass to the screws 33 and 46 located at different heights.

As in the mechanism 27, the side holes 95, 96 are aligned with each other, each of which is made in half 23, 24 and open to the side, with the corresponding sockets 105, 106, made in the walls of the element 21, facing each other and aligned with each other and the holes 95, 96, allowing the actuation of the screw 46 by means of the tool U from opposite sides (right, left).

The upper hole 97 is aligned with the socket, made in the element 21, which in accordance with a non-restrictive example is the socket 103 or can be made in the form of a special separate socket.

Regarding the overall screws 33 and 46, as shown in FIG. 1 and 4, 5, the axis of rotation of the screws 33, 46 lie in a common first vertical plane, preferably on the center line of the housing 22, along which the two halves 23, 24 are connected, while passing, respectively, in different horizontal planes (orthogonal to the vertical plane) thus, the screws 33 and 46 are located in the housing 22 at different heights.

At the same time, the two heads 35 and 49, respectively, extend in a second and third vertical plane orthogonal to the first plane, with the second and third planes being spatially separated from each other.

Thus, it is possible to separate (individual) access to each adjustment screw 33 and 46 from above and from the sides without moving the tool that interacts with one of the screws (or head), which closes access to the other screw.

Strongly connected to each other half 23, 24, for example, through one or more pins or liners, or screw connections, contain the above kinematic mechanisms.

In a typical embodiment, the housing 22, containing mechanisms 27, 28 for adjusting, respectively, the height and depth of the panel 21 (and, therefore, the cabinet, of which the panel 21 can form a part), also contains a box-shaped vertical stand 60 for attaching the hinged bracket 20, centered along the shoulder, to panel 21, as explained further.

Hour 60 comprises a core 61 reinforced with a perimetric edge 62 connected at the ends, as clearly illustrated in the drawings.

The core 61 of the rack 60 has a groove in which the flat rectangular case 22 of the indicated hinged bracket is assembled and fixed.

For this, the box-shaped retaining tooth 64, which is hooked on the vertical column 60, passes along the edge of the housing 22 above the hook 30.

The fastening pin connected to the vertical upright 60 preferably extends along the edge of the housing 22 under the hook 30.

As clearly shown in the drawings, said groove through which the hook 30 passes is preferably off-center, i.e. it is located closer to the upper end of the rack 60 relative to its lower end.

The mounting stand 60 has two levers of the lever, respectively, longer and shorter, with shoulder B1 extending below housing 22, and shoulder B2 extending above it.

Hinged bracket 20, centered on the shoulder, structurally made, as described above, is placed in the corresponding slot of the panel 21 and is firmly attached to it using appropriate connecting means, for example, screws 120.

Consequently, access to each of the mechanisms 27, 28 is provided in three orthogonal directions (top, right, left) to control the element 21 in height and depth and, consequently, in general, the cabinet to which it is connected, as explained above.

The rotation of the screw 33 in one or the other direction provides essentially the rotation of the lever 25 around the hinge 26 by turning the curvilinear part 37 pushed by the running nut 34.

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

The rotation of the screw 46 in one or the other direction in the opening of the hinge 26 provides movement of the hinge and, accordingly, the lever 25.

Constructive element 21 in accordance with the present invention relates to a piece of furniture or similar object and is made with the possibility of hanging on a vertical wall, and the element 21 has an internal recess to accommodate the above-described device 20.

The element 21 advantageously has at least five through slots 101, 102, 103, 105, 106 communicating with the internal recess of the device 1, each of said sockets being aligned with the holes 91, 92, 93 and 97, 95, 96, allowing access for tool U.

Thus, the objectives of the invention are achieved.

It is possible to perform various variants of the described device, which should be considered as equivalent for the illustrative example given in this document.

Claims (10)

1. A secret device (20) for fastening a structural element (21) of a piece of furniture to a wall, comprising a box-shaped body (22) in which the first and second control mechanisms (27, 28) are placed, respectively, in height and depth, supplied, respectively , the first and second adjustment screws (33, 46), each of which has a head (35, 49) with a toothed crown, characterized in that said housing (22) has at least one hole (91, 92, 93, 95, 96, 97) access for each screw (33, 46), which runs in the radial direction relative to the shock bound toothed crowns and ends at a crown with providing the possibility of direct interaction in the radial direction of said toothed crown with a tool (U). 2. The secret device (20) according to claim 1, wherein said housing (22) has at least two access openings (91, 92; 95, 96) for each screw (33, 46) that extend radially relative to the gear crown in at least two separate directions of access, aligned with each other and lying in a common orthogonal plane with respect to the axis of rotation of the corresponding screw (33, 46). 3. The secret device (20) according to claim 2, wherein said housing (22) has at least a third access hole (93, 97) for each screw (33, 46) extending radially relative to the crown in the third access direction, passing in the same plane as the specified two directions of access, and located at an angle of 90 ° to the specified directions. 4. A secret device (20) according to claim 1, comprising a movable lever (25) for an engaging attachment to a support (74) attached to a wall, said first and second adjustment mechanisms (27, 28) affecting said lever (25) ensuring respectively its rotation and movement after driving the corresponding adjusting screw (33, 46), moreover, these mechanisms (27, 28) are located inside the specified housing (22). 5. The secret device (20) according to claim 2, in which each hole for the screw (33) runs parallel to the hole for the other screw (46) in pairs. 6. The secret device (20) according to claim 1, in which the body (22) has the shape of essentially parallelepiped and contains two interconnected halves (23, 24), and one of at least two of these holes (91 , 92; 95, 96) for each screw, preferably holes, aligned with each other, made in one of the halves (23, 24). 7. The secret device (20) according to claim 6, in which the second hole (93, 97) for each screw (33, 46) is formed by connecting two recesses facing each other, each of which is made in the corresponding half (23, 24 ). 8. The secret device (20) according to claim 1, in which the said gear crown passes around the circumference of the screw head (33, 46) and contains teeth with a cross section of essentially triangular or trapezoidal shape, with the apex of such a triangle or a smaller base of such a trapezium facing the axis of rotation of the screw (33, 46). 9. The secret device (20) according to any one of paragraphs. 1-8, in which the axis of rotation of the screws (33, 46) lie in a common first vertical plane, preferably the center plane of the housing (22), and in corresponding different horizontal planes (orthogonal to the vertical plane), so that essentially the screws (33 , 46) are located in the housing (22) at different heights, with the corresponding heads (35, 49) extending respectively in the second and third vertical planes orthogonal to the first plane and spaced apart from each other. 10. Constructive element (21) of the piece of furniture, having a slot for placing the device according to any one of paragraphs. 1-9 and the corresponding sockets (101, 102, 103, 104, 105) made in the walls of the specified element (21) and communicating with the specified nest, while when the specified device (20) is in the assembled state, at least one Of these nests (101, 102, 103, 104, 105) are aligned with the specified access holes (91, 92, 93, 95, 96, 97) made for each screw (33, 49).

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