IT202100019511A1 - HINGE DEVICE FOR FURNITURE - Google Patents

Description

Description of the patent for an industrial invention entitled:

?FURNITURE HINGE DEVICE?

DESCRIPTION

TECHNICAL FIELD OF THE INVENTION

[001] The present invention relates to a hinge device for furniture doors, in particular flush doors.

BASIC TECHNIQUE OF THE INVENTION

[002] How? Known, in the furnishing sector furniture is made up of parallelepiped containment bodies formed essentially by two parallel vertical sides, a lid, a base and a back, defining a compartment in which possible to store objects, food, clothing, etc.

[003] In general, the front opening through which said internal compartment is accessed? selectively resealable by one or more? doors, furniture between a closed position, in which access to the compartment is prevented, and at least one opening position, in which ? possible to access the contents of the internal compartment.

[004] Switching between the closed position and the open positions can be done with mode? different: for example, the doors can be articulated to the body of the piece of furniture and the passage from one position to another occurs essentially by rotation around a vertical axis defined by hinge devices.

[005] Particularly popular on the market are the so-called "flush" doors, ie doors which, in the closed position, are recessed inside the body of the furniture and essentially aligned with the front edge of the side of the furniture.

[006] However, these doors require specific hinge devices since, if conventional devices with rotation around a fixed vertical axis were used, for example the butterfly hinges, during the opening/closing movement they would interfere against the side of the furniture and there? would prevent it from rotating. Consequentially, ? it is necessary to provide hinge devices with non-fixed hinge axis, which are capable of progressively moving the door away from the side of the cabinet during the opening/closing movement.

[007] For this purpose there are hinge devices with a pair of pins sliding in as many guide grooves, shaped to guide the leaf during the opening/closing movement. However, a problem that is often found in this type of hinge device is that the movement of the door generated by them is not? fluid.

[008] Furthermore, often the assembly of doors to the body of the piece of furniture by means of such hinge devices? very laborious and difficult.

SUMMARY OF THE INVENTION

[009] What is the main task of the present invention? that of overcoming the drawbacks of the known art by devising a hinge device for furniture doors mounted flush with the side which allows to give an absolutely fluid movement to the door, both in opening and in closing.

[0010] Within the scope of the present aim, an object of the present invention is that of realizing a hinge device for furniture doors mounted flush with the side which allows to keep the closed position in a stable way, however allowing an easy opening of the same, up to reaching opening angles even higher than 90°, maintaining at the same time the front access opening of the piece of furniture is more? wide as possible.

[0011] Another object of the present invention? that of realizing a hinge device for furniture doors which has reduced dimensions and which is completely concealed, recessed inside the panels of the furniture.

[0012] Another purpose of the present invention? that of realizing a hinge device for furniture doors which is robust, durable and compact and which can be easily adapted to move doors of different thicknesses.

[0013] Not the last aim of the present invention? that of providing a hinge device for furniture doors which allows simple and quick assembly of the door to the body of the furniture, also enabling adjustments to be made to the position of the door itself with respect to the body of the furniture.

[0014] Not the last aim of the present invention? that of devising a hinge device for furniture doors which can be obtained through the use of easily available means and components, and which can be manufactured with the usual and known plants, machinery and equipment.

[0015] The task, purposes and advantages indicated above, as well as others which will better appear in the following description are achieved by a hinge device as defined in claim 1.

BRIEF DESCRIPTION OF THE FIGURES

[0016] Advantages and characteristics of a hinge device according to the present invention will be better illustrated in the description of particular, but not exclusive, embodiments represented by way of non-limiting example in the attached drawings in which:

- figures 1A and 1B show, in perspective views from different angles, a hinge device according to the present invention;

- figure 2A is an exploded view of a first component of a hinge device according to the present invention, suitable for being associated with a panel forming the bottom of the piece of furniture;

- figure 2B is an exploded view of a variant embodiment of the first component of figure 2A;

- figure 3 is an exploded view of a second component element of a hinge device according to the present invention, suitable for being associated with the furniture door;

- figures 4A and 4B show, in perspective view, a portion of the body of a piece of furniture to which ? rotatably associated with a door by means of a hinge device according to the present invention, in a closed door condition, respectively seen from the outside and from the inside of the piece of furniture;

- figures 5A, 5B and 5C show, in perspective views from above, a hinge device according to the present invention when associated with a piece of furniture, respectively in the door closed, door open and door fully open positions; And

- figures 6A and 6B show, in a plan view, a detail of the positioning of the guide pins in the closed leaf condition and in the completely open leaf condition.

DETAILED DESCRIPTION OF THE INVENTION

[0017] With reference to figures 1A and 1B, there ? shown is a hinge device 1 according to the present invention, suitable for rotatably articulating a door A of the flush type to the body of a piece of furniture comprising at least one side F and a bottom B or a top.

[0018] In particular, the body of the piece of furniture has an essentially parallelepiped shape and internally defines a compartment having a front access opening, which can be selectively closed by said door A, which? of the ?flush? type, ie rotatably mountable to the body of the piece of furniture in such a way that, in the closed position, it lies essentially on the same plane defined by the front leading edge of the side F, as for example shown in figure 4A.

[0019] Specifically, a hinge device 1 according to the present invention ? suitable for constraining said door A in a rotatable manner to the bottom B or to the top of said piece of furniture, in correspondence with the front access opening of the same, around an essentially vertical axis of rotation X-X, so that said door A can be moved by ?user thanks to special gripping means integral with it, such as for example one or more? handles, between a closed position (as shown in figure 5A), in which it lies on the same plane as said front access opening, and a plurality of opening positions, in which ? angularly spaced seamlessly from the closed position (as shown for example in figure 5B), by performing a rotation around said rotation axis X-X, up to a maximum opening position of the leaf A, reached with a rotation around the hinge axis X-X by a given angle, equal to about 105? with respect to the closed position (as shown in figure 5C), defined so that? door A does not strike against side F.

[0020] In the description below, terms such as ?above?, ?below?, ?upper?, ?lower?, ?top?, ?bottom?, ?front?, ?rear? may be used. or similar; the expert of the sector will not have? any difficulty? in understanding that these terms refer to the device 1 in its normal working order, ie in use, as shown in the accompanying figures.

[0021] Furthermore, with reference to the attached figures, a hinge device 1 suitable for rotatably constraining the door A to the panel forming the bottom B of the piece of furniture is described below, however it is understood that a hinge device according to the present invention when suitably rotated can? It can also be used to swivel door A to the panel forming the top of the furniture. Clearly, in use, ? the use of a pair of hinge devices 1 suitable for articulating the door A respectively to the bottom and top of the cabinet is preferable.

[0022] Said hinge device 1 substantially comprises a support element 10 which can be associated with the body of the piece of furniture, for example with the bottom panel B of the same, and a body element 20 which can be mounted integrally with said door A.

[0023] In use, said body element 20 ? operatively associated with said support element 10 through guide means 30 arranged and shaped to progressively move the axis of rotation X-X of the leaf A and guide the movement of said leaf A between the closed position and an open position.

[0024] In particular, advantageously, said guide means 30 comprise a control element 11 formed by a cylindrical body inserted in said support element 10 and provided, at a first end, with engagement means 14, such as a suitable slot to be engaged by a? extremity? head 21A of a hinge pin 21 projecting from said body element 20 and defining said axis of rotation X-X, and on the end? opposite being coupled to a plate 15 from which project three parallel and, in use, vertical guide pins 11A, 11B, 11C.

[0025] Said guide pins 11A, 11B, 11C are suitable for slidingly engaging corresponding grooved seats 12A, 12B, 12C obtained on said support element 10 and shaped in such a way that, during the rotational movement of the leaf A between the closed position and the maximum open position, said axis of rotation X-X translates along a sliding direction Y in use orthogonal to the side F of the cabinet with a movement in the two opposite directions V1, V2, as shown in figures 5B and 5C.

[0026] In practice, the passage from the closed position (figure 5A) to the maximum opening position of the leaf A (figure 5C) takes place with a roto-translation movement composed of a rotation around the X-X axis and a simultaneous translation along a direction Y initially in a first direction, indicated by the arrow V1, in which the leaf moves away from the side F, until it reaches an opening angle of approximately 45? (figure 5B), and subsequently in the opposite direction, indicated by the arrow V2, in which the leaf A is recalled towards the side F, until the maximum opening angle of approximately 105? is reached.

[0027] Advantageously, said support element 10 ? suitable for being received in a first housing seat arranged on the bottom B or on the top of the body of the piece of furniture in such a way as to be essentially flush with the internal surface of the same.

[0028] As better observed in figure 2A, said support element 10 ? preferably formed by a first half-shell 10A, on which said grooved seats 12A, 12B, 12C are obtained, and a second half-shell 10B, which can be coupled to said first half-shell 10A for example by riveting to form a closed and compact casing .

[0029] Said second half-shell 10B also has a slotted opening 13 in which inserted, with possibility? of rotation and translation, said control element 11, so that said first end portion? of the same protrusion externally to allow the coupling with the extremity? head 21A of the hinge pin 21.

[0030] Said guide pins 11A, 11B, 11C are advantageously obtained on said plate 15 according to a misaligned arrangement and comprise a first guide pin 11A placed in use essentially coaxial to said hinge pin 21 and suitable for engaging a first grooved seat 12A made in an essentially central region of said support element 10, a second guide pin 11B arranged in use proximal to the side F of the piece of furniture being suitable for engaging a second grooved seat 12B and a third guide pin 11C arranged in use distal with respect to to the side F of the piece of furniture being suitable for engaging a third grooved seat 12C.

[0031] Preferably, said first grooved seat 12A has an elongated shape and extends along an orthogonal Y direction in use on the side F of the piece of furniture, said second grooved seat 12B has a shape defined by a first section 12B2, having a first concavity advantageously facing, in use, towards said side F, and a second portion 12B?? having concavity opposite to that of said first portion to form a sort of ?S?, and said third grooved seat 12C has a shape defined by a single concavity? facing, in use, towards the side F of the cabinet, forming a sort of ?C?.

[0032] Said hinge device 1 also comprises first elastic means 40 suitable for cooperating with at least one of said guide pins to elastically maintain the closed position and the maximum open position of said wing A.

[0033] Said first elastic contrast means 40 can advantageously be formed by a leaf spring, as shown in figure 2A, or by a torsion spring, as shown in figure 2B.

[0034] In particular, in the embodiment shown in figures 2A and 2B, said spring 40? housed in a corresponding housing seat 41 arranged in such a way that said spring 40 extends with the ends? free movement 40A, 40B inside said third grooved seat 12C, thus interfering with the movement of said third guide pin 11C.

[0035] When does leaf A ? in a closed position, the guide means 30 are arranged as shown in figure 6A: in particular, said third guide pin 11C ? arranged at a first end edge portion of said third grooved seat 12C, and this position is resiliently maintained by a first end? 40A of said spring 40: to actuate the opening movement of the leaf A ? therefore necessary to overcome the force of elastic contrast offered by the first extremity? 40A of the spring 40.

[0036] When does leaf A ? in a fully open position, the guide means 30 are arranged as shown in figure 6B: in particular, the third pin 12C has reached the second end edge portion of said third grooved seat 12C and elastically overcomes the elastic force offered by the second end? 40B of the spring 40. In this way, leaf A can? be stably kept in the maximum open position. There? ? particularly advantageous when assembling the hinge device 1 to the cabinet.

[0037] As shown in figure 3, said body element 20 ? formed by an essentially hollow casing, preferably obtained by joining a pair of half-shells 20A, 20B, which can advantageously be housed in a second housing seat provided in the thickness of the door A, arranged and configured so that it? an outer face 20? of said body element 20 is essentially flush with the internal surface of the door A itself, as for example shown in figure 4B.

[0038] According to an advantageous characteristic of the present invention, said hinge pin 21 ? movable along said X-X axis between a retracted position, in which ? retracted inside said body element 20 and a rest position, in which ? projecting at least partially with respect to the head edge of said door A in such a way that its end? butt 21A engages inside the engagement slot 14 provided on a first end? of said control element 11.

[0039] Second elastic means 50 are associated with said pin 21 to elastically oppose its sliding along the axis X-X towards the retracted position; in particular, preferably, said second elastic means 50 comprise a compression spring arranged coaxially with said pin 21.

[0040] Advantageously, to allow the assembly of said hinge device 1, a cursor 22 ? expected integral with the pin 21 and ? arranged in such a way as to be movable, for example with the tip of a tool, to momentarily hold the pin 21 in the retracted position, in contrast with said second spring 50. Said cursor 22 is? advantageously arranged facing an operating window 23 obtained on said body element 20 and accessible from the internal surface of the door A.

[0041] Advantageously, said hinge device 1 also comprises position adjustment means suitable for allowing the position of door A to be adjusted.

[0042] In particular, preferably, said position adjustment means comprise a first sliding element 60, such as a first slide, housed with the possibility of movement inside said body element 20 and provided with a seat 61 open at one end? and in which? axially inserted said hinge pin 21 and said second spring 50.

[0043] Said first slide 60 ? operatively connected to a first adjustment means 70, which can be operated by the user to adjust the position of the door A along a vertical direction.

[0044] For this purpose, said first slide 60 ? equipped with a first control opening 62 suitably shaped, in which ? accommodated said first adjustment means 70, which comprises a body 71 extending along an essentially horizontal axis and equipped with an operating head 72 arranged in a corresponding first operating hole 24 obtained on said body element 20 and accessible from the inner surface of the ?anta A.

[0045] Said first adjustment means 70 further comprises a pin 73, arranged eccentrically with respect to the axis of rotation of said body 71, and a first base 74 defining a faceted cam suitable for cooperating with the edge wall of said first opening command 62 for defining and varying the vertical position of the first slide 60 and therefore, in use, of the leaf A.

[0046] Advantageously, said body 71 also has a limit switch element 75, obtained on a second base 76 alongside said first base 74 and having radially larger dimensions, suitable for abutting against stop means 63, such as for example a plate projecting from said first slide 60 and arranged below said first control opening 62.

[0047] Advantageously, said first slide 60 ? mounted on a second sliding element 80, such as a second slide, operatively associated with a second adjustment means 90 for adjusting the position of the door A along a horizontal direction.

[0048] In particular, said second slide 80 has a second control opening 81, advantageously extending along a vertical axis and suitable to be engaged by said second adjustment means 90, which comprises a body 91 equipped with a second operating head 92 suitable for being arranged in a corresponding second maneuver hole 25 obtained on the casing of said body element 20 and accessible from the internal surface of the door A, and a pin 93, eccentric with respect to the rotation axis of the body 91, suitable to engage said slotted opening 82 and cooperate with the edge wall of the same to define and vary the horizontal position of the second slide 80 and, consequently, of the first slide 60 integral with it and therefore, in use, of the door A.

[0049] Preferably, said first and second slide 60, 80 each have corresponding sliding openings 64, 82 in which ? inserted the cursor 22 of the hinge pin 21 to allow its movement.

[0050] The assembly of a hinge device 1 according to the present invention to a piece of furniture takes place as follows: initially ? it is advisable to position said support element 10 in the respective first housing seat obtained on the bottom B or on the top of the piece of furniture, and said body element 20 in the second housing seat obtained in the thickness of the door A.

[0051] Subsequently, said control element 11 is moved in rotation, the first end of which? projects from the slotted opening 13 provided on the second half-shell 10B of said support element 10, until the three guide pins 11A, 11B, 11C move to a position corresponding to the maximum opening position of the leaf A, position which is elastically maintained thanks to the action of the second extremity? 40B of said first spring 40.

[0052] At this point, with the help of a tool, such as for example a screwdriver, the cursor 22 is accessed through the maneuver window 23 obtained on said body element 20 to move said hinge pin 21 along said axis X-X towards the retracted position, in contrast with the action of said second spring 50.

[0053] There? it therefore allows the edge of the door A to be positioned in correspondence with the support element 10 so that, once the tool has been removed, the pin 21 returns elastically to the extracted position so that its end? butt 21A engages in the engagement slot 14 provided on the first end? of the control element 11, thus obtaining the coupling between said support element 10 and said body element 20.

[0054] Then acting with a tool, such as a screwdriver, on said first and second adjustment means 70, 90, accessing the respective operating heads 72, 92 through the corresponding first and second operating holes 24, 25 obtained on the external face 20? said body element 20 and arranged facing each other at the inner surface of door A, ? it is advantageously possible to adjust the vertical and horizontal position of door A.

[0055] From the foregoing, it is clear that the present invention achieves the aims and advantages initially foreseen. In particular, yes? obtained a hinge device for flush mounted furniture doors which, thanks to the action of guide means 30 comprising three guide pins suitably arranged and sliding in corresponding suitably configured grooved seats, allows passage from the closed position to the maximum opening of leaf A takes place with a roto-translation movement consisting of a rotation around the X-X axis and a simultaneous translation along a sliding direction Y orthogonal to side F, initially in a first direction V1, in which leaf A moves away from side F, and subsequently in the opposite direction V2, in which leaf A is drawn towards side F.

[0056] There? it therefore allows, with an absolutely fluid movement, to move the leaf A away from the side F to allow its rotation in opening without interfering with the same, then bringing it closer to the latter in the condition of maximum opening, in such a way as to expand the most? is it possible the breadth of the frontal access to the cavity? of the furniture.

[0057] A hinge device for furniture doors according to the invention is furthermore absolutely compact and can be mounted in such a way as to be completely concealed. In fact, advantageously, said support element 10 and body element 20 are arranged in use essentially recessed inside the panels of the piece of furniture with which they are associated, so that they can be used. the hinge device 1 is advantageously not visible from the outside of the piece of furniture, as can be appreciate from Figure 4A.

[0058] Furthermore, a hinge device for furniture doors according to the present invention allows the closed and maximum open position of the door A to be maintained in a stable manner, while still allowing easy movement of the same, and to reach angles of opening even higher than 90?.

[0059] Finally, the fact that said hinge device has an elastically retractable hinge pin, together with the possibility to permanently maintain the maximum opening position of door A allows you to quickly and easily mount door A to the body of the piece of furniture.

[0060] Finally, thanks to position adjustment means ? It is possible to adjust the position of door A in a simple and immediate way, both vertically and horizontally, with respect to the front opening of the body of the piece of furniture to which it is located. associated.

[0061] Of course, the present invention is susceptible to numerous applications, modifications or variations without with what? exit the scope of protection, as defined by the attached claims.

[0062] Furthermore, the materials and equipment used in the present invention, as well as the shapes and dimensions of the individual components, may be the most? suitable according to specific needs.

Claims (10)

Patent claims for industrial invention entitled: ?FURNITURE HINGE DEVICE? CLAIMS 1. Hinge device (1) for revolving a door (A) flush with a piece of furniture formed by a body comprising at least one side (F) and a bottom (B) or a top, called hinge device (1) comprising a support element (10) which can be associated with the body of the piece of furniture and a body element (20) integral with said door (A), said body element (20) being operatively associated, in use, with said support element (10 ) by means of guide means (30) to progressively move the axis of rotation (X-X) and guide the movement of said wing (A) between a closed position and a fully open position, characterized in that said guide means ( 30) comprise a control element (11) formed by a cylindrical body inserted in said support element (10) and provided, at a first end, with engagement means (14) suitable for being engaged by an end? head (21A) of a hinge pin (21) projecting from said body element (20) and defining said axis of rotation (X-X), and on the end? opposite being coupled to a plate (15) from which project three parallel and, in use, vertical guide pins (11A, 11B, 11C), suitable for slidingly engaging corresponding grooved seats (12A, 12B, 12C) obtained on said control element support (10) and shaped in such a way that, during the rotation movement of the leaf (A) between a closed position and a fully open position, said axis of rotation (X-X) moves along a sliding direction (Y) in use orthogonal to the side (F) with a movement in the two opposite directions (V1, V2). 2. Hinge device (1) according to claim 1, wherein said guide pins (11A, 11B, 11C) comprise a first guide pin (11A) placed essentially coaxial to said hinge pin (21) and suitable for engaging a first grooved seat (12A) arranged in an essentially central region of said support element (10), a second guide pin (11B) arranged proximal to the side (F) of the piece of furniture being suitable for engaging a second grooved seat ( 12B) and a third guide pin (11C) arranged distal to the side (F) of the piece of furniture being suitable for engaging a third grooved seat (12C), said guide pins (11A, 11B, 11C) being arranged misaligned. 3. Hinge device (1) according to claim 1 or 2, wherein said grooved seats (12A, 12B, 12C) comprise a first grooved seat (12A) having an elongated shape and extending along said sliding direction (Y), a second grooved seat (12B) having shape defined by a pair of portions (12B?, 12B??) having concavity? opposite sides, and a third grooved seat (12C) having a shape defined by a single section having a concavity? facing, in use, towards the side (F) of the cabinet. 4. Hinge device (1) according to any one of the preceding claims, wherein said support element (10) comprises a first half-shell (10A) on which said grooved seats (12A, 12B, 12C) are obtained, and a second half-shell (10B) which can be coupled to said first half-shell (10A) and equipped with a slotted through opening (13) suitable for housing said control element (11), arranged and configured to allow rotation around said axis ( X-X) and the translation along said sliding direction (Y) integrally with said pin (21). 5. Hinge device (1) according to any one of the preceding claims, comprising first elastic means (40) adapted to elastically interact with one of said guide pins (11A, 11B, 11C) to elastically maintain the closed position and the maximum opening of said leaf (A). 6. Hinge device (1) according to claim 5, wherein said first elastic means (40) comprise a flat or torsion spring, which can be housed in a relative grooved seat (41) obtained on said first half-shell (10A) so such that its respective portions of end? (40A, 40B) projecting inside said third grooved seat (12C), respectively in the vicinity? of the respective end edge portions, to elastically oppose the movement of said third guide pin (11C). 7. Hinge device (1) according to any one of the preceding claims, wherein said hinge pin (21) is? movable axially along said axis of rotation (X-X) between a retracted position, in which ? retracted inside said body element (20), and a rest position, in which said end? head (21A) of said pin (21) projects from said body element (20) to engage said engagement means (14) of said control element (11), second elastic means (50) being associated with said hinge (21) to elastically contrast its sliding along said axis of rotation (X-X) towards said retracted position. 8. Hinge device (1) according to any one of the preceding claims, wherein said hinge pin (21) is? mounted on a first sliding element (60) movable inside said body element (20) and suitable for cooperating with first position adjustment means (70) to adjust the vertical position of the door (A). 9. Hinge device (1) according to claim 7, wherein said first sliding element (60) is mounted on a second sliding element (80) movable inside said body element (20) and suitable for cooperating with second position adjustment means (90) to adjust the horizontal position of the door (A). 10. Furniture comprising at least one side (F), a bottom (B) or a top and a door (A) and equipped with a hinge device (1) according to any one of the preceding claims.