IT201800004071A1 - HINGE FOR THE SWIVEL MOVEMENT OF A CLOSING ELEMENT - Google Patents

Description

HINGE FOR THE SWIVEL MOVEMENT OF A CLOSING ELEMENT

DESCRIPTION

Field of application

The present invention is generally applicable to the technical sector of hinges, and particularly relates to a hinge for the rotatable movement of a closing element.

State of the art

It is known that hinges are generally used to rotationally connect a closing element, such as a door, a window, a sash or similar, to a stationary support structure, such as a wall, a frame, a piece of furniture or the like.

The latter, in a per se known way, have a fixed element anchored to the stationary support structure and a mobile element anchored to the closing element.

The type of hinge most present on the market is the so-called Anuba hinge, which is essentially made up of two pieces, a fixed lower half-hinge and a movable upper half-hinge, rotationally coupled to each other.

Each of the lower and upper half-hinges has a threaded shank that allows it to be fixed respectively to the stationary support structure and to the closing element.

The Anuba hinges can be free, that is, completely rotatable at 360 ° without any impediment, or they can have a stop point to limit the opening angle. The latter type is particularly popular for use with furniture doors.

A known disadvantage of these hinges is their scarce versatility. The opening angle of the mobile element with respect to the fixed one, in fact, is predetermined, and cannot be changed except by changing the hinge.

Another known solution to limit the opening angle of a door are door stop elements glued or screwed to the ground, or shockproof rubber pads on the wall or on the door handle.

These solutions are obviously uncomfortable, aesthetically unpleasant and bulky.

Presentation of the invention

The object of the present invention is that of at least partially overcoming the drawbacks encountered above, providing a hinge having characteristics of high functionality, constructive simplicity and low cost.

A particular purpose of the invention is to provide a hinge that is versatile.

A particular purpose of the invention is to make available a hinge that has a high durability over time.

A particular purpose of the invention is to make available a hinge that requires minimal maintenance.

These purposes, as well as others which will appear more clearly in the following, are achieved by a hinge in accordance with what is described, illustrated and / or claimed herein.

The dependent claims describe advantageous embodiments of the invention.

Brief description of the drawings

Further features and advantages of the invention will become more evident in the light of the detailed description of some preferred but not exclusive embodiments of a hinge 1, illustrated by way of non-limiting example with the aid of the accompanying drawing tables in which:

FIG. 1 is an assembled axonometric view of a first embodiment of the hinge 1;

FIG. 2 is an exploded axonometric view of the embodiment of the hinge 1 of FIG.1;

FIGS. 3 and 4 are exploded axonometric views of some details of the hinge 1 of FIG.1;

FIG.5 is an exploded axonometric view of a further embodiment of the hinge 1;

FIG.6 is an exploded axonometric view of a further embodiment of the hinge 1;

FIG.7 is an exploded axonometric view of a further embodiment of the hinge 1;

FIG. 8 is an enlarged isometric view of an embodiment of the pivot pin 30;

FIG. 9 is an enlarged isometric view of an embodiment of the coupling between male element 32 and female element 24.

It is understood that the embodiment of the hinge 1 illustrated in FIGS. 1 to 5 is not part of the present invention.

Detailed description of some preferred embodiments With reference to the aforementioned figures, a hinge 1 is described which is adapted to rotationally move any closing element, for example a door, a window, a wing or the like, anchored to any stationary support structure, for example a wall, a frame, a piece of furniture or similar.

In particular, the hinge 1 can be particularly used to rotationally move the doors of a piece of furniture a closed position and an open position.

Essentially, the hinge 1 comprises a fixed element 10 and a movable element 20, rotationally coupled to each other to rotate around an axis of rotation X.

In a preferred but not exclusive embodiment, the hinge 1 may be of the Anuba type, ie essentially formed by a fixed lower half-hinge 10 which can be anchored to the stationary support structure and a movable upper half-hinge 20.

Although reference will be made hereinafter to this type of hinge, it is understood that the present invention is applicable to any type of hinge, within the limits of the attached claims.

In the figures, the stationary support structure and the closing element have not been shown, as they are known per se.

It is also understood that even if in the attached figures the lower fixed hinge has been indicated with 10 and the upper movable hinge with 20, the opposite may also happen, namely that the lower fixed hinge is 20 and the upper movable hinge is 10, without for this to go out of the scope of protection of the attached claims.

Conveniently, each of the lower fixed 10 and upper mobile 20 semi-hinges may include a hinge body 12, 22, which may be substantially cylindrical, and a stem 11, 21 for anchoring respectively to the support structure and to the closing element.

The stems 11, 21 may be of the traditional type, as illustrated for example in FIG.

7.

On the other hand, at least one of the stems 11, 21, and preferably the stem 11, may have different characteristics compared to traditional stems, as better explained below. Some examples of embodiment of this type of hinge are illustrated for example in FIGS. from 1 to 6.

Furthermore, in a preferred but not exclusive embodiment, each of the lower fixed 10 and upper mobile 20 half-hinges can be of the traditional type, with a rotation pin 30 protruding from one of them monolithically with this. Some examples of embodiment of this type of hinge are illustrated for example in FIGS. 1 to 5.

On the other hand, in another embodiment the hinge 1 may comprise a rotation pin 30 which can be removably inserted into the lower fixed 10 and upper movable hinges 20, as better explained below. Some examples of embodiment of this type of hinge are illustrated for example in FIGS. 6 and 7.

It is understood that the hinge 1 can also have only one of the aforementioned characteristics, i.e. the lower fixed 10 and upper mobile 20 semi-hinges suitable for accommodating the removable rotation pin 30 or at least one of the special type stems 11, 21, or both, without thereby departing from the scope of protection of the attached claims.

Advantageously, the rotation pin 30 can be retractable insertion into internal seats 13, 23 of the fixed and movable cylindrical hinge bodies 12, 22. More particularly, these internal seats 13, 23 can be defined by blind holes made in the cylindrical hinge bodies fixed and mobile 12, 22.

The retractable insertion of the rotation pin 30 in the internal seats 13, 23 will ensure that once the fixed and mobile cylindrical hinge bodies 12, 22 are coupled together, the pin 30 is not visible from the outside.

To this end, in the embodiments in which the rotation pin 30 is removable, the sum of the heights H1, H2 of the internal seats 13, 23 can be at least equal to the height H3 of the pin 30. On the other hand, in the forms embodiment in which the rotation pin 30 is monolithic with one of the cylindrical hinge bodies fixed or movable 12, 22, the height H1 of the corresponding cylindrical seat can be at least equal to the height H3 of the pin 30.

Thanks to this characteristic, the pin 30 will be protected from dirt and accidental impacts, which will prolong its life.

Conveniently, the rotation pin 30 may have an end portion 31 'with a plurality of male protrusions 32, which may be polarized around a center substantially coinciding with the X axis.

On the other hand, the rotation pin 30 may have an opposite end portion 31 '' with an axial slot 33 'and a curvilinear slot 33', communicating with each other. Appropriately, then, a 33 '' avoidance may be provided, the function of which will be better described later.

The seat 23 of the movable hinge body 22 may have a plurality of counter-shaped female seats 24, also polarized around a center substantially coincident with the X axis and intended to mutually and removably engage with the male projections 32 of the rotation pin. 30.

Conveniently, the male projections 32 can all be identical to each other, as well as the counter-shaped female seats 24. In this way, it will be possible to engage the rotation pin 30 and the movable hinge body 22 together in a plurality of relative angular positions.

The greater the number of male projections 32 and correspondingly of the counter-shaped female seats 24, the greater the reciprocal angular positions in which the rotation pin 30 and the movable hinge body 22 can be engaged.

Alternatively, as visible in FIG. 9, a substantially quadrangular shaped male element 32 may be provided which extends from the pin 30 to engage in a female seat 24 in the shape of a dodecagonal star or other similar shape.

In any case, the shape engagement will rotationally lock the rotation pin 30 and the movable hinge body 22, which once mutually engaged can only be axially decoupled.

In order to avoid axial uncoupling of the rotation pin 30 and of the movable hinge body 22, a screw 25 may be provided passing through the hole 26 of the same movable hinge body 22. Conveniently, the hole 26 can be placed along the X axis. , the end 31 'of the pin 30 may include a nut screw 35 which can be engaged with the screw 25. In this way, misalignments of the closing element will also be avoided.

It is understood that the screw 25 can be placed both above and below the hinge 1, as illustrated for example in FIGS. 6 and 7. On the other hand, if the pin 30 is monolithic with the fixed lower hinge body 11, as shown for example in FIGS. 1 and 5, the same screw 25 could be absent, in which case these elements would remain coupled by gravity.

On the other hand, the seat 13 of the fixed hinge body 12 may have an abutment element 14 in correspondence with the end portion 14 ', which can be axially inserted into the axial slot 33' and through the latter into the curvilinear slot. 33 ''.

In the latter, the abutment element 14 will remain axially blocked and will only be able to rotate between the abutment surfaces 34 'and 34', as illustrated in particular in FIG. 8. The angular distance between the latter will define the stroke of the abutment element 14, for example 90 °, 120 ° or 140 °, and essentially the opening angle of the closing element.

Along the curvilinear slot 33 '' one or more recesses 33 '' can be provided, which can accommodate the abutment element 14 during the rotation between the abutment surfaces 34 'and 34' '. In this way, one or more stop positions will be defined for the closing element.

The configuration of the recess 33 '' 'will determine the greater or lesser force with which the closing element is held in the stop position. For example, a deeper recess 33 '' will cause greater force to unlock the closing element from the stop position. Invitation surfaces may also be provided to facilitate locking / unlocking of the closing element in / from the stop position.

For example, a recess 33 '' 'may be provided at the position of the open closing element. On the other hand, various slots may be provided, possibly of different configuration, for example when the closing element reaches the opening positions at 45 °, 90 ° and 120 °.

The coupling between the abutment element 14 and the curvilinear slot 33 '' will also axially block the rotation pin 30 and the fixed hinge body 12, which can be axially coupled / uncoupled only and exclusively by sliding the abutment element 14 in the axial slot 33 '.

Thanks to these characteristics it will be possible to vary the angular position of the closed and open positions of the closing element.

For this purpose, in fact, it will be sufficient to unscrew the screw 25 from the nut screw 35 and vary the relative angular position of the pin 30 and of the upper hinge body 20 by disengaging and subsequently re-engaging the male projections 32 and the counter-shaped female seats 24 in the case of the embodiment. illustrated in FIGS. 6 and 7, or the male element with a quadrangular shape 32 and the star or decagonal seat 24 in the case of the embodiment illustrated in FIG. 9.

In this way, in practice, the angular position of the abutment surfaces 34 ', 34' ', which define the opening angle of the closing element, will vary.

In order to allow a simple and safe fixing of the hinge 1, and in particular of the lower hinge body 10 to the relative stationary support structure, the stem 11, which can define a Y axis substantially perpendicular to the X axis, can be internally hollow for defining a cavity 15 communicating with the internal seat 13 and facing a through hole 16.

A tie element 40 can also be provided which can be axially inserted through the cavity 15, the through hole 16 and the portion of the internal seat 13 interposed between them.

The tie element 40 may have a control head 42 and a shank 44, which may be threaded at least at the free end 43.

The stem 44 may have a length L1 slightly greater than the distance L2 between the hole 16 and the end 17 of the stem 11, so that once inserted through the cavity 15, the through hole 16 and the portion of the internal seat 13 interposed between the latter protrudes from the end 17 to engage in an expander element 41, which may have a substantially frusto-conical shape with a taper diverging with respect to the Y axis.

The end 17 may have a plurality of fins 18 polarly distributed around the Y axis to engage with the conical expander element 41, which expands them radially.

Operationally, the fixing of the lower hinge body 10 to the relative stationary support structure will take place by drilling the latter and inserting the stem 11 inside this hole, after inserting the screw 40 through the cavity 15, the through hole 16 and the internal seat 13 interposed between them, and after screwing the conical expander element 41 onto the end 43 of the tie-rod element 40 so that the conical expander element 41 fits into the fins 18.

The latter, in fact, will engage with the conical expander element 41 preventing it from rotating around the Y axis, so that when the tensioning element 40 is screwed on, the conical expander element 41 can only translate along the same axis. Y.

Subsequently, an operator can act with a special tool, for example a screwdriver, on the control head 42 of the tie rod element 40 to screw it, promoting, as seen above, the translation of the conical expander element 41 along the Y axis.

Thanks to the particular geometry of the expander element 41, the axial translation of the latter will correspond to the radial expansion of the fins 18, which will fix the lower hinge body 12 to the stationary support structure in a simple and firm way.

The above configuration is particularly advantageous also because it allows you to mount the closing element quickly and easily.

In fact, it will be sufficient to screw the movable upper hinge body 20 to the closing element in the traditional way, couple the fixed lower hinge body 10 to it and then fix the latter to the stationary support structure as seen above.

Preferably, as illustrated for example in FIGS. 5 and 6, one of the lower fixed hinge body 10 or the upper movable body 20 will include the abutment element 14, while the other between the lower fixed hinge body 10 or the upper movable body 20 will include the slots 33 ', 33' ' .

In this way, the interaction between the abutment element 14 and the slots 33 ', 33' 'will ensure the mutual removable coupling between the fixed hinge bodies 10 and the movable 20. This will allow to fix the stem 11 in the hole of which above with the hinge 1 already fixed to the closing element, which guarantees a very high fixing precision of the latter.

In a preferred but not exclusive embodiment, the hinge body 10 may have a seat 19 for the concealed insertion of the head 42 of the tie element 40. In this way, it will be avoided that the closing element can go to impact against the same head 42.

More specifically, when the latter is in seat 19, its striking surface 45 may come into contact with the abutment surface 19 'of the same seat 19.

From what has been described above, it is clear that the invention achieves the intended purposes.

The invention is susceptible of numerous modifications and variations, all of which fall within the inventive concept expressed in the attached claims. All the details can be replaced by other technically equivalent elements, and the materials can be different according to the needs, without departing from the scope of the invention.

For example, the counter-shaped female seats 24 may belong to the pin 30 and the male protrusions to the upper hinge body 20 or to the lower hinge body 10. On the other hand, the pin 30 may include the abutment element 14 while the abutment surfaces 34 ', 34' 'can be obtained on the lower 10 or upper 20 hinge body.

Although the invention has been described with particular reference to the attached figures, the reference numbers used in the description and in the claims are used to improve the intelligence of the invention and do not constitute any limitation to the scope of protection claimed.

Claims (10)

CLAIMS 1. A hinge for the pivotal movement of a closing element, such as a door, a window, a sash or the like, which can be anchored to a stationary support structure, such as a wall, a frame, a piece of furniture or the like, the hinge comprising : - a fixed element (10) which can be anchored to the stationary support structure; - a movable element (20) which can be anchored to the closing element, said movable element (20) being rotationally coupled with said fixed element (10) to rotate around a longitudinal axis (X) between at least one open position and at least one closed position ; - a rotation pin (30) defining said longitudinal axis (X); wherein said pivot pin (30) and one between said fixed element (10) and said movable element (20) comprise means (14, 33 ', 33' ') for reciprocal rotating coupling; wherein said pivot pin (30) and the other between said fixed element (10) and said movable element (20) comprise means (24, 32) for reciprocal rotating locking, the latter being of the removable type so that said rotation pin (30) and the other between said fixed element (10) and said movable element (20) are rotationally lockable in a plurality of relative angular positions to vary said at least one closed position and at least one open position; in which each of said fixed (10) and movable (20) elements comprises a respective fixed (12) and movable (22) hinge body with a respective first and second internal seat (13, 23) capable of concealed housing said rotation (30), so that said reciprocal rotating coupling means (14, 33 ', 33' ') and said rotating locking means (24, 32) are internal to said fixed (12) and movable (22) hinge body . 2. Hinge according to claim 1, wherein said pivot pin (30) and the other between said fixed element (10) and said movable element (20) are mutually movable in relation to each other around said axis longitudinal (X) between a stroke start position and a stroke end position, said rotatable coupling means (14, 33 ', 33' ') comprising at least a first and at least a second abutment surface (34', 34 '' ) and at least one abutment element (14) mutually movable in relation to each other, said at least one first and at least one second abutment surface (34 ', 34' ') being reciprocally angularly spaced by a predetermined distance so that when said abutment element (14) and said at least one first abutment surface (34 ') are mutually abutting said rotation pin (30) and one of said fixed and mobile element (10, 20) are in said position of start of stroke, and so that when said feedback element (14) and de at least one second abutment surface (34 '') said rotation pin (30) are in mutual abutment and one of said fixed and mobile element (10, 20) are in said end-of-stroke position. 3. Hinge according to claim 2, wherein said pivot pin (30) comprises a first end portion (31 '') which includes one of said at least one first and second abutment surface (34 ', 34' ') or at least one abutment element (14), the internal seat (13, 23) of the fixed or mobile hinge body (12, 22) of said one of said fixed and mobile element (10, 20) comprising a working portion (14 ' ) which includes the other between said at least one first and second abutment surface (34 ', 34' ') and at least one abutment element (14). 4. Hinge according to claim 3, wherein that of said pivot pin (30) is said one of said fixed and movable element (10, 20) which includes said at least one first and second abutment surface (34 ', 34' ') also includes a curvilinear slot (33') extending between the latter to define said predetermined distance, said at least one abutment element (14) being slidably inserted in said curvilinear slot (33 '). 5. Hinge according to claim 4, wherein that of said pivot pin (30) is said one of said fixed and movable element (10, 20) which includes said at least one first and second abutment surface (34 ', 34' ') also includes an axial slot (33' ') operatively communicating with said curvilinear slot (33'), said at least one abutment element (14) being slidingly insertable / disconnectable in / from said axial slot (33 '') for allowing the axial coupling / uncoupling of said rotation pin (30) and said one of said fixed and mobile element (10, 20) exclusively by sliding in said axial slot (33 ''). 6. A hinge according to any one of the preceding claims, wherein said rotatable locking means (24, 32) comprise first male or female elements (32) and second female or male elements (24) which can be mutually engaged in a removable manner, said rotation pin (30) comprising a second end portion (31 ') which includes one of first male or female elements (32) and second female or male elements (24), the internal seat (13, 23) of the fixed or movable hinge body (12, 22) of said other between said fixed and mobile elements (10, 20) comprising the other between first male or female elements (32) and second female or male elements (24). 7. Hinge according to claim 6, wherein said first male or female elements comprise one or more male projections (32) extending from the respective pivot pin (30) or from said other of said fixed and movable elements (10, 20), said second male or female elements comprising one or more counter-shaped female seats (24) removably and selectively engageable with said one or more male projections (32). 8. Hinge according to claim 7, wherein said first and second male or female elements comprise a respective plurality of male projections (32) and counter-shaped female seats (24) polarly distributed around a center substantially coinciding with said axis (X) , said male projections (32) being all equal to each other, said counter-shaped female seats (24) also being all equal to each other. 9. Hinge according to one or more of the preceding claims, wherein said pivot pin (30) and said other between said fixed element (10) and said movable element (20) comprise mutual axial locking means (25, 35), preferably of the screw and nut screw type. 10. Hinge according to the preceding claim, wherein said mutual axial locking means are of the screw and nut screw type (25, 35), the latter comprising a screw (25) axially passing through the fixed or movable hinge body (12, 22) ) of said other between said fixed element (10) and said movable element (20), said mutual axial locking means of the screw and nut screw type (25, 35) further comprising a nut screw obtained axially on said rotation pin (30) to mutually engage with said screw (25).