ITMI20111515A1 - ADJUSTABLE HINGE FOR WINDOWS - Google Patents

Description

ADJUSTABLE HINGE FOR WINDOWS

The present invention refers to an adjustable hinge for doors and windows.

In the sector of doors and windows, in particular in the sector of doors and windows of considerable size and weight, such as, for example, safety doors or â € œfireproofâ €, the use of adjustable hinges is known that allow to adjust the relative position between the mobile frame and the fixed frame of the window frame so that, when the window is closed, the mobile frame fits perfectly with the fixed frame.

The known hinges comprise at least a first wing body and a second wing body which are articulated to each other in a rotatable way around an axis of rotation by means of a pin and of which one can be fixed to the fixed frame and the other to the mobile frame of the window.

In particular, hinges are known which are provided with means for registering the relative position of the first wing body and of the second wing body along three orthogonal directions, namely:

- along the direction parallel to the axis of rotation of the hinge, known in the jargon of the sector as â € œregulation in heightâ €;

- along the direction parallel to the plane of the window and orthogonal to the rotation axis, known in the jargon of the sector as â € œregulation in escapeâ €;

- along the orthogonal direction to the window plane, known in the jargon of the sector as â € œregulation under pressureâ €.

Hinges equipped with one or more of these adjustment means are for example known from IT1999TO00520 (Savio Spa), IT2008FI00180 (Euroinvest S.P.A.), EP-1455042 (Master S.r.l.), EP-1314844 (Haps + Sohn GmbH), EP-0837206 ( Simonswerk GmbH) and EP-0467075 (Dr. Hahn GmbH & Co.).

In particular, from EP-0467075 an adjustable hinge is known equipped with means for registering the relative position of the first and second wing body along the direction parallel to the plane of the window frame and orthogonal to the rotation axis (â € œregulation in escapeâ €), which include a guide bush inside which the hinge pin is housed with play.

The guide bushing is in turn housed in a cavity which is obtained in one of the two wing bodies.

This cavity has two faces parallel to the registration direction and one of which has a rectilinear toothing which extends along this registration direction.

A toothing is obtained on a portion of the external lateral surface of the bush which engages with the straight toothing on one of the two internal faces of the cavity; the portion of the external lateral surface of the bushing opposite to the toothed one is, on the other hand, cylindrical and smooth and is defined to always be in direct contact with the opposite face of the cavity. One rotation of the bush corresponds to a relative rectilinear displacement between the first and second wing bodies along the registration direction.

The relative position between the first and second wing bodies is fixed by means of screw means.

The construction tolerances typical of the sector, however, do not guarantee constant direct contact between the external lateral surface of the bush and the sides of the cavity in which it is inserted.

The object of the present invention is to overcome the drawbacks of the known art.

In the context of this general purpose, the purpose of the present invention is to provide an adjustable hinge for doors and windows that allows to recover the coupling play between the various components thereof, in particular between those that contribute to the adjustment along the parallel direction. to the window plane and orthogonal to the rotation axis (â € œregulation in escapeâ €), in a simple and effective way. A further purpose of the present invention is to provide an adjustable hinge for doors and windows which allows to register the movable frame with respect to the fixed frame of a window or door, in particular along the direction parallel to the plane of the window and orthogonal to the rotation axis. (â € œregulation on the runâ €), in a simple, quick, safe and easily controlled way by an operator.

Still another object of the present invention is to provide an adjustable hinge for doors and windows which visually presents structural continuity for any type and entity of registration.

Another object of the present invention is to provide a particularly simple and functional adjustable hinge for doors and windows, with low costs.

These purposes according to the present invention are achieved by making an adjustable hinge for doors and windows as set forth in claim 1.

Further characteristics are provided in the dependent claims.

The characteristics and advantages of an adjustable hinge for door and window frames according to the present invention will become more evident from the following description, which is exemplary and not limiting, referring to the attached schematic drawings in which:

Figure 1 is an overall perspective view of a hinge according to the present invention;

figure 2 is an exploded view of the hinge of figure 1, without the counter-plates and fixing screws;

figure 3 shows on an enlarged scale a detail of the hinge of figure 2;

Figures 4 and 5 are two longitudinal sections made according to mutually orthogonal planes of the detail of Figure 3 in assembly configuration;

figure 6 is a partial schematic section according to the VI-VI plane of figure 5;

Figures 7 and 8 are two longitudinal sections made according to mutually orthogonal planes of the hinge of Figure 1 in the assembly configuration;

Figures 9a, 9b and 9c show a bottom plan view of the hinge of Figure 1, without the lower covering cap, in three different relative positions of the first wing body and of the second wing body along the first registration direction (â € œregistration on the run ...); Figures 10a, 10b and 10c show a top plan view of the hinge of Figure 1, without the top cover cap, in three different relative positions of the first wing body and of the second wing body along a second registration direction ( â € œregistration under pressureâ €);

Figures 11a and 11b show a front view of the hinge according to the present invention respectively in the registration positions corresponding to Figures 9a and 9b;

Figures 11c and 11d show a side view of the hinge according to the present invention respectively in the registration positions corresponding to Figures 10a and 10b;

Figures 11e and 11f show a front view of the hinge according to the present invention in two possible different relative positions of the first wing body and of the second wing body along a third registration direction parallel to the rotation axis (â € œregistration in heightâ €);

figure 12 is an exploded view of a variant of the hinge according to the present invention;

Figures 13 and 14 are two longitudinal sections made according to mutually orthogonal planes of the hinge of Figure 12 in the assembly configuration.

With reference to the attached figures, the numeral 10 generally indicates an adjustable hinge for door and window frames according to the present invention.

The hinge 10 can be applied to windows and doors in general comprising a fixed frame, which delimits a compartment of a door or a window, and at least one movable frame of the type of a wing closing this compartment, which, for simplicity of representation, are not depicted.

It should be noted that in this description adjectives such as `` first '', `` second '' and `` third '' or such as `` superior '' and `` inferior '' are used for clarity only and must not be construed in a limiting sense.

In the present description, furthermore, reference will be made to the â € œtop of the window frameâ €, meaning the plane of the window frame considered in the closing configuration where this plane coincides, in practice, with the plane of the mobile frame, that is, of the door leaf or window.

The hinge 10 comprises at least a first wing body 11 which can be fixed to the fixed frame of a window or door and at least a second wing body 12 which can be fixed to the movable frame of a window or door, or vice versa, which are articulated to each other in a rotatable manner around an axis rotation A by means of a pin 13.

Each of the first body 11 and the second body 12 has a wing portion, 11a and 12a respectively, which is connected to a hollow cylindrical portion, 11b and 12b respectively, open at the opposite ends.

In correspondence with the wing portions 11a and 12a there are holes 14 and 15 respectively for inserting corresponding fastening members 16 and 17 to the fixed and mobile frame which are schematically illustrated only in some of the attached figures.

Between the first body 11 and the second body 12 and respectively the fixed frame and the movable frame of the window or door, counter-plates and fixing springs indicated as a whole with 18 and not further described, being of a known type, can be interposed.

Each of the first body 11 and the second body 12, moreover, is equipped with a front closing cover, respectively 19 and 20, and with a closing cap respectively lower 21 and upper 22, all of the removable type and also they are not further described being of a known type.

The relative position of the first body 11 and of the second body 12 is adjustable along three mutually orthogonal directions and respectively:

- along a first registration direction X parallel to the plane of the window frame and orthogonal to the axis of rotation A, and which, in the jargon of the sector, is indicated as â € œregulation in escapeâ €,

- along a second registration direction Y orthogonal to the plane of the window frame and which, in the jargon of the sector, is indicated as â € œregulation in pressureâ €, and - along a third registration direction Z parallel to the rotation axis A and which, in the jargon of the sector, is referred to as â € œregistration in heightâ €. To this end, the hinge 10 comprises:

- first recording means 23 of the relative position of the first body 11 with respect to the second body 12 along the first recording direction X,

- second recording means 24 of the relative position of the first body 11 with respect to the second body 12 along the second recording direction Y and - third recording means 25 of the relative position of the first body 11 with respect to the second body 12 along the third recording direction Z.

The first adjustment means 23 comprise a first bushing 26 which supports an end portion 13a of the pin 13 and which is movably housed inside a cavity 27 which is defined in the hollow cylindrical portion 11b of the first body 11.

The cavity 27 has two faces opposite each other and parallel to the first registration direction X.

On one of these two faces there is a toothing 28 which develops parallel to the first registration direction X and with which a corresponding toothing 29 defined on a portion of the external lateral surface of the first bush 26 engages.

According to a peculiar characteristic of the present invention, the first bush 26 has, on the opposite side with respect to the toothing 29, a portion of contact with the other of the two faces of the cavity 27, which contact portion is yielding on the plane orthogonal to the € ™ axis of rotation A.

The contact portion is elastically yielding along the radial planes of the first bushing 26.

In particular, the contact portion is defined by a gusset element 30 which is associated with the first bushing 26.

There is a free space S.

The block element 30 has in cross section two opposite ends 30a and 30b (Figures 6 and 9a) which are constrained in corresponding grooves 31a and 31b obtained on the external lateral surface of the first bush 26.

The gusset element 30 develops in the form of a lamina for a determined section of the height of the first bushing 26, so that its two opposite ends 30a and 30b are practically constituted by two ribs parallel to the axis of rotation A and the corresponding grooves 31a and 31b also extend parallel to the rotation axis A.

The portion of the gusset element 30 between its two opposite ends 30a and 30b is yielding along the radial planes of the first bushing 26; it, in particular, is able to flex in an elastic way. Between the portion of the gusset element 30 between its two opposite ends 30a and 30b and the facing portion of the external lateral surface of the first bushing 26 there is the free space S, which is defined by a seat lowered 32 obtained in the first bushing 26.

Seen in cross section, the gusset element 30 has the shape of an arched crown sector which partially embraces the first bushing 26.

In the embodiment shown in the attached figures, the gusset element 30 is in the form of a lamina or tab which extends from a ring 33 which is anchored to the first bushing 26 by means of fastening members of the type for example a interlocking or the like, not shown in detail, being easily understandable to those skilled in the art. The ring 33 has an opening for the passage of the first bushing 26 which is suitably shaped so as to allow, during the assembly phases, the passage of the toothing 29. The ring 33 rests and fixes the head portion with increased cross-section of the first bushing 26.

According to a further peculiar characteristic of the present invention, the contact portion (i.e. the block element 30) of the first bushing 26 with the face of the cavity 27 opposite the toothing 28 has an alternation of grooves and radial protrusions indicated as a whole with 34 which extend parallel to the axis of rotation A and which engage with a corresponding alternation of grooves and radial protrusions indicated as a whole with 35 defined on the face of the cavity 27 opposite the toothing 28.

The pitch between two successive projections or recesses 34 and 35 is constant and corresponds to a defined angle of rotation of the first bushing 26.

Advantageously, the first bushing 26 is made of metal or metal alloy (â € œzamaâ €) and the deformable portion of it, that is the gusset element 30, is made of polymeric material.

The lower end of the first bushing 26 has a shaped seat 36 accessible from the lower end of the hollow cylindrical portion 11b of the first body 11 and in which an operating member, of the type for example of an Allen key, engages by means of of which the first bushing 26 can be rotated from the outside.

The rotation of the first bushing 26 and with it of the pin 13 generates a translation movement only along a plane P parallel to the first registration direction X between the first body 11 and the second body 12.

During this rotation, the contact portion, ie the block element 30, remains in contact with the face of the cavity 27 opposite the toothing 28 and ensures correct engagement between the toothings 28 and 29.

With each rotation of the first bushing 26 corresponding to the pitch of the alternation of recesses and protrusions 34, moreover, thanks to the compliance of the contact portion itself, a â € œjumpâ € is generated with respect to the corresponding and opposite alternation of recesses and protrusions 35. This jump generates a â € œclickâ € sound effect which signals to an operator that the first bushing 26 has been rotated equal to the aforementioned pitch and, therefore, the corresponding linear displacement between the first body 11 and the second body 12.

First fixing means are then provided for the first bushing 26 inside the cavity 27 in the position corresponding to the desired registration of the relative position between the first body 11 and the second body 12 along the first registration direction X. These first fastening means comprise a headless screw or a dowel 37 which engages in a corresponding threaded hole 37a obtained along a radial direction in the wall of the cylindrical portion 11b of the first body 11 opposite the toothing 28. The end of the dowel 37 facing inside of the cavity 27 rests and abuts against corresponding flats 38 obtained on the external lateral surface of the first bushing 26 opposite the toothing 29.

The flats 38 are delimited in an axial direction respectively by an upper tooth 55 and a lower tooth 56 whose function is to prevent any sliding of the first bush 26 if subjected to loads greater than those permitted.

Figures 9a, 9b and 9c clearly show three different limit positions, respectively of â € œzeroâ €, of maximum and minimum distance, of the first body 11 with respect to the second body 12 along the first registration direction X.

In these figures 9a, 9b and 9c it is clearly visible the contact between the contact portion, that is, between the block element 30, and the face of the cavity 27 opposite the toothing 28 and the alternation of recesses and protrusions 34 and 35.

The second adjustment means 24 (â € œregistration under pressureâ €) comprise a second bushing 39 movably housed in a corresponding seat 40 defined in the hollow cylindrical portion 12b of the second body 12.

The second bushing 39 is provided with an eccentric cylindrical cavity 41 which houses, with the interposition of a third bushing 42 in anti-friction material, an end portion 13b of the pin 13. The third bushing 42 is made integral in rotation to the second bushing 39 with a prismatic coupling 43 which, as will become clearer in the following, leaves the relative axial sliding between them free.

At the upper end of the second bushing 39 there is a shaped seat 44 accessible from the open upper end of the hollow cylindrical portion 12b of the second body 12.

In the shaped seat 44 is engaged an operating member, of the type for example of an Allen key, by means of which the second bushing 39 can be operated in rotation from the outside.

The rotation of the second bushing 39 and with it of the pin 13 generates a relative displacement between the first body 11 and the second body 12 with component parallel to the second displacement direction Y.

On the outer lateral surface of the second bushing 39 there are two longitudinal stop or end-of-stroke projections 45 which abut against corresponding abutment surfaces 46 obtained in the seat 40.

The relative position of the first body 11 with respect to the second body 12 along the second recording direction Y is fixed by second fixing means which temporarily lock the second bushing 39 inside the seat 40 and which can be operated from the € ™ external.

Said second fixing means also comprise a headless screw or dowel 47 which engages in a corresponding threaded hole 48 obtained in a radial direction in the walls of the hollow cylindrical portion 12b of the second body 12.

The head of the dowel 47 turned inside the seat 40 rests and engages with corresponding flat facets 49 obtained on the external lateral surface of the second bushing 39.

Figures 10a, 10b and 10c clearly show three different relative positions of the first body 11 with respect to the second body 12 along the second recording direction Y (â € œregistration under pressureâ €).

The third adjustment means 25 (â € œregistration in heightâ €) comprise a threaded member 50 which engages in a corresponding threaded hole 51 obtained through at an upper end portion of the second bushing 39 and having a corresponding seat at the top shaped 52 accessible from the outside for the engagement of an operating organ such as, for example, an Allen key.

The lower end of the threaded member 50 rests on the bottom of the third bushing 42.

By rotating the threaded member 50 in one direction of rotation or in the opposite one, the second body 12 is moved respectively away from or towards the first body 11 along the third registration direction Z.

According to a further feature of the present invention, the hinge 10 comprises a pair of collars 53 and 54 of which one is associated with the first bushing 26 and the other with the second bushing 39 and which are telescopically coupled to each other in parallel to the axis of rotation A.

In the embodiment shown, the collar 53 is associated with the first bush 26 by means of the ring 33 with which it is made integral in a single body.

The collar 54, on the other hand, is inserted on the second bushing 39 and remains tightened between it and the second body 12.

Thanks to the two collars 53 and 54, telescopically coupled to each other, the hinge 10 always presents, in any condition of adjustment of the relative position of the first and second bodies 11 and 12, structural continuity that does not alter the appearance of the window or door. on which it is applied.

Figures 11a to 11f clearly show the interaction between the collars 53 and 54 in visually maintaining the structural continuity of the hinge 10 in some of the possible different relative positions of the first body 11 with respect to the second body 12 respectively following an adjustment in escape (Figures 11a and 11b), in pressure (Figures 11c and 11d) and in height (Figures 11e and 11f).

Figures 12 to 14 show a possible variant of the hinge 10 according to the present invention of the so-called `` three-wing '' type in which, that is, an auxiliary wing body 120 is provided which can be fixed to the movable frame of the window and is articulated to the first body 11 in a rotatable way around the rotation axis A by means of a further pin 130.

In this case, the upper end of the pin 130 engages in the shaped seat 36 at the lower end of the first bushing 26, at the lower end of which an additional shaped seat 360 is obtained, accessible from the ™ external and with which a maneuvering member of the type for example of an Allen wrench engages by means of which the first bushing 26 can be operated in rotation.

Similarly to what has been described above, the pin 130 is associated with the auxiliary body 120 by means of respective second adjustment means 24 as described above.

In figures 12 to 14 elements corresponding to the embodiment represented in figures 1 to 10 have been indicated with the same reference number.

The assembly and adjustment in the three different possible directions of the hinge according to the present invention are immediately understandable without any effort for the person skilled in the art in the light of the description and the attached figures.

The adjustable hinge according to the present invention, thanks to the presence of an elastically yielding gusset element and as described above, has the advantage of ensuring constant contact of the first registration bush with the opposite faces of the cavity in which it is housed, recovering the coupling games between them in any of their relative positions.

The adjustable hinge according to the present invention, again thanks to the presence of the elastically yielding gusset element and as described above, also has the advantage of signaling the relative displacement of the first and second bodies in an audible way that is immediately perceptible to an operator. wing along the runaway recording direction.

Finally, thanks to the provision of at least one pair of telescopic collars as described above, the adjustable hinge according to the present invention has the advantage of maintaining a visual structural continuity of the hinge itself regardless of the relative position between the first and the second wing body along a of the three recording directions (escape, pressure and height).

The adjustable hinge for doors and windows thus conceived is susceptible of numerous modifications and variations, all falling within the scope of the invention; furthermore, all the details can be replaced by technically equivalent elements. In practice, the materials used, as well as the dimensions, can be any according to the technical requirements.

Claims (14)

CLAIMS 1) Adjustable hinge (10) for doors and windows comprising: - at least a first wing body (11) that can be fixed to the fixed frame of a window or door and at least a second wing body (12) that can be fixed to the mobile frame of a window or door, or vice versa, which are articulated to each other in a rotatable way around a rotation axis (A) by means of a pin (13), - first registration means (23) of the relative position of said first wing body (11) with respect to said second wing body (12) along a first registration direction (X) which is parallel to the plane of said window and door orthogonal to said rotation axis (A), - in which said first adjustment means (23) comprise a first bush (26) which supports an end portion (13a) of said pin (13) and which is housed in a movable way inside a cavity (27) which is defined in one of said first wing body (11) and said second wing body (12) and which has two faces opposite each other and parallel to said first registration direction (X), - in which one of said two faces has a toothing (28) which develops parallel to said first recording direction (X) and with which a corresponding toothing (29) defined on a portion of the external lateral surface of said first bushing (26), e - wherein said first bushing (26) can be rotated from the outside and the rotation of said first bushing (26) and with it of said pin (13) generate a translation movement only along said first recording direction ( X) between said first wing body (11) and said second wing body (12), characterized by the fact that - said first bush (26) has a portion of contact with the other of said two faces of said cavity (27), which contact portion is yielding on the plane orthogonal to said rotation axis (A). 2) Hinge (10) according to claim 1, characterized in that said contact portion is elastically yielding along radial planes of said first bush (26). 3) Hinge (10) according to claim 1 or 2, characterized in that said contact portion is defined by a gusset element (30) associated with said first bush (26). 4) Hinge (10) according to claim 3, characterized in that a free space (S) is present between said gusset element (30) and the facing portion of the external lateral surface of said first bush (26). 5) Hinge (10) according to claim 3 or 4, characterized by the fact that said gusset element (30) has two opposite ends (30a, 30b) in cross section which are connected to said first bush (26), in which the portion of said gusset element (30) comprised between said opposite ends (30a, 30b) is yieldable along radial planes of said first bushing (26). 6) Hinge (10) according to one or more of claims 3 to 5, characterized in that said gusset element (30) has a cross-sectional shape of an arcuate crown sector which partially embraces said first bush (26). 7) Hinge (10) according to claim 5 or 6, characterized in that between said portion of said gusset element (30) comprised between said opposite ends (30a, 30b) and the facing portion of the external lateral surface of said first bushing (26) is defined as a free space (S). 8) Hinge (10) according to one or more of the preceding claims, characterized in that said contact portion has an alternation of radial recesses and protrusions (34) which develop parallel to said rotation axis (A) and which they engage with a corresponding alternation of recesses and radial projections (35) defined on the face of said cavity (27) opposite to said face equipped with said toothing (28). 9) Hinge (10) according to claim 8, characterized in that the pitch between two of said protrusions or two of said successive recesses (34, 35) of said alternation is constant and corresponds to a defined angle of rotation of said first bush (26). 10) Hinge (10) according to one or more of the preceding claims, characterized in that it comprises first means for fixing said first bush (26) inside said cavity (27) which are associated with the one between said first body wing (11) and said second wing body (12) in which said cavity (27) is defined and which can be maneuvered from the outside. 11) Hinge (10) according to one or more of the preceding claims, characterized in that it comprises second means for adjusting (24) the relative position of said first wing body (11) with respect to said second wing body (12) along a second registration direction (Y) orthogonal to said plane of said window frame and which comprise a second bushing (39) movably housed in a corresponding seat (40) defined in the other between said first wing body (11) and said second wing body (12) and which is provided with an eccentric cylindrical cavity (41) which houses an end portion (13b) of said pin (13), in which said second bushing (39) can be operated in rotation from the outside and in which the rotation of said second bush (39) and with it of said pin (13) generates a relative displacement between said first wing body (11) and said second wing body (12) with component parallel to said second recording direction (Y), essen furthermore provided second fixing means of said second bush (39) inside said seat (40) which are associated with that between said first wing body (11) and said second wing body (12) in which It is defined as the seat (40) and which can be maneuvered from the outside. 12) Hinge (10) according to claim 11, characterized in that it comprises a pair of collars (53, 54) of which one is associated with said first bush (26) and the other with said second bush (39) and which are telescopically coupled to each other parallel to said rotation axis (A). 13) Hinge (10) according to one or more of the preceding claims, characterized in that said first wing body (11) can be fixed to said fixed frame of said window frame and said second wing body (12) can be fixed to said movable frame of said window frame and in which said cavity (27) is defined in said first wing body (11). 14) Hinge (10) according to one or more of the preceding claims, characterized in that said first bush (26) is made of metal or metal alloy and said contact portion is made of polymeric material.