ME01859B - Adjustable hinge for window or door frames - Google Patents

Description

Description of the invention

The present invention relates to an adjustable hinge for window or door frames.

In the field of window or door frames, and in particular in the field of window or door frames that have considerable dimensions and weight, such as, for example, security doors or "fire doors", it is known to use an adjustable hinge that enables adjustment of the relative position of the movable of the frame and the fixed frame for the window or door frame so that when the window or door frame is closed, the movable frame fits perfectly on the fixed frame.

Known hinges contain at least one first body of the wing and the second body of the wing which are mutually hingedly connected around the axis of rotation by means of a pin, whereby one of them can be attached to a stationary frame, while the other can be attached to a movable frame of a window or door frame.

In particular, hinges are known which are equipped with means for adjusting the relative position of the first wing body and the second wing body along three orthogonal directions, i.e.:

- along the direction that is parallel to the axis of rotation of the hinge, which is known in the jargon in the relevant area as "height adjustment";

- along a direction that is parallel to the plane of the window or door frame and orthogonal to the axis of rotation, which is known in the jargon of the relevant field as the "gap adjustment";

- along a direction that is orthogonal to the plane of the window or door frame, which is known in the jargon of the relevant field as "pressure setting".

Hinges equipped with one or more such adjusting means are known, for example, from IT1999TO0050 (Savio Spa), IT2008FI00180 (Euroinvest S.P.A.), EP-1455042 (Master S.r.l.), EP-1314844 (Haps+Sohn GmbH), EP- 0837206 (Simonswerk GmbH), EP-0467075 (Dr. Hahn GmbH&Co.) and EP0992647-A2 (GIESSE SPA).

In particular, from EP-0467075 an adjustable hinge is known, which is equipped with means for adjusting the relative position of the first and second sash bodies along a direction parallel to the plane of the window or door frame and orthogonal to the axis of rotation ("gap adjustment"), whereby the adjustable the tool contains a guide sleeve inside which the hinge pin is placed with a clearance.

Further, the guide sleeve is located in a cavity made in one of the two wing bodies.

Such a cavity has two surfaces that are parallel to the direction of adjustment and one of them has straight serrations extending in that direction of adjustment.

The toothing is performed on one part of the external side surface of the bushing, where this toothing is connected to the straight toothing on one of the two inner surfaces of the cavity; on the other hand, the part of the external side surface of the sleeve, which lies opposite the toothed part, is cylindrical and smooth and is defined so that it is always in direct contact with the opposite surface of the cavity.

With each rotation of the sleeve, a corresponding rectilinear movement is made between the first and second body of the wing in the direction of adjustment.

The relative position of the first and second body of the wing is fixed by means of a screw.

However, the design tolerances that are typical in this area do not ensure constant direct contact between the outer side surface of the sleeve and the surface of the cavity into which it is inserted.

The aim of the present invention is to eliminate these shortcomings of the state of the art.

Within this general objective, the objective of the present invention is to realize an adjustable hinge for window or door frames that allows re-establishment of the gap when joining between its various components, and in particular between those that help adjustment along a direction parallel to the plane of the window or door frame and is orthogonal to the axis of rotation ("gap adjustment"), in a simple and efficient way.

The next objective of the present invention is the realization of an adjustable hinge for window or door frames that enables the adjustment of the movable frame in relation to the stationary frame of the window or door frame, and in particular along the direction that is parallel to the plane of the window or door frame and orthogonal to the axis of rotation ("adjustment of the intermediate space "), in a simple, fast, safe way, which can be easily controlled by the operator.

Another object of the present invention is to realize an adjustable hinge for window or door frames that has structural continuity at any type and amount of adjustment.

The next goal of the present invention is the realization of an adjustable hinge for window or door frames that is particularly simple, functional and inexpensive.

According to the present invention, these goals are achieved by realizing an adjustable hinge for window or door frames according to claim 1.

Further features are provided in the dependent claims.

The features and advantages of an adjustable hinge for window or door frames according to the present invention will become clearer from the following description, which is given by way of example and not limitation, with reference to the accompanying schematic drawings, in which:

Fig. 1 is an axonometric view of the hinge according to the subject invention as a whole;

Fig. 2 is a disassembled view of the hinge from Fig. 1, without distance plates and fixing screws;

Fig. 3 shows on a larger scale a detail of the hinge from Fig. 2;

Fig. 4 and 5 are two longitudinal sections of details from Fig. 3 in the folded state along planes that are orthogonal to each other;

Fig. 6 is a schematic view of a partial section in the plane VI-VI in Fig. 5;

Fig. 7 and 8 are two longitudinal sections of the hinge from Fig. 1 in the folded state along planes that are orthogonal to each other;

Fig. 9a, 9b and 9c show a bottom view of the hinge of FIG. 1, without the lower cover cap, in three different relative positions of the first wing body and the second wing body along the first adjustment direction ("gap adjustment");

Fig. 10a, 10b and 10c show a horizontal projection of the hinge of FIG. 1, without the upper cover cap, in three different relative positions of the first wing body and the second wing body along the second adjustment direction ("pressure adjustment");

Fig. 11a and 11b show a front view of the hinge according to the present invention, respectively, in the adjustment positions corresponding to Figs. 9a and 9b;

Fig. 11c and 11d show a side view of the hinge according to the present invention, respectively, in the adjustment positions corresponding to Figs. 10a and 10b;

Fig. 11e and 11f show the front view of the hinge according to the present invention in two possible relative positions of the first wing body and the second wing body along the third direction of adjustment, which is parallel to the axis of rotation ("height adjustment");

Fig. 12 shows the appearance of the disassembled version of the hinge according to the present invention;

Fig. 13 and 14 are two longitudinal sections of the hinge from Fig. 12 in the folded state along planes that are orthogonal to each other.

With reference to the accompanying drawings, reference numeral 10 denotes an adjustable hinge for window or door frames according to the present invention as a whole.

The hinge 10 may be mounted on window or door frames which generally comprise a fixed frame, which defines the door or window space, and at least one movable sash-type frame to enclose that space, which, for simplicity, is not shown.

It should be emphasized that in the subject description, adjectives such as "first," "second," and "third," or such as "upper" and "lower," are used for clarity only and should not be construed as limiting the invention.

In addition, the subject description refers to the "plane of the window or door frame", which means the plane of the window or door frame that is considered to be in the closed state when that plane practically coincides with the plane of the movable frame, i.e. window or door sashes.

The hinge 10 contains at least one first wing body 11, which can be attached to a stationary frame of two window or door frames, and at least one second wing body 12 that can be attached to a movable frame of two window or door frames, or vice versa, which are mutually rotatably connected around the axis of rotation A by means of pin 13.

Both the first body 11 and the second body 12 each have a wing part 11a and 12a, respectively, which is connected to a corresponding hollow cylindrical part, 11b and 12b, respectively, which are open from opposite sides.

On parts 11a and 12a of the wings, there are openings, respectively 14 and 15, for inserting the corresponding fastening elements 16 and 17 for attachment to the fixed and moving frame, which are shown schematically only in some of the attached pictures. Between the first body 11 and the second body 12 and the stationary frame and the movable frame for the window or door frame, respectively, distance plates and fastening springs can be placed, which are marked as a whole with the reference number 18 and which will not be described further, since they are known type.

In addition, each of the first body 11 and the second body 12 is provided with a front closure cap 19 and 20, respectively, and with a lower and upper cover cap 21 and 22, respectively, all of which are of the removable type and also will not be further described, because they are of a known type.

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

- along the first adjustment direction X, which is parallel to the plane of the window or door frame and is orthogonal to the axis of rotation A and which is known in the jargon of the relevant field as "gap adjustment",

- along the second adjustment direction Y, which is orthogonal to the plane of the window or door frame and which is known in the jargon of the relevant field as "pressure adjustment", and

- along the third adjustment direction Z, which is parallel to the axis of rotation A and which is known in the jargon of the relevant area as "height adjustment".

For these purposes, the hinge 10 contains:

- the first adjusting means 23 for adjusting the relative position of the first body 11 in relation to the second body 12 along the first adjustment direction X,

- other adjusting means 24 for adjusting the relative position of the first body 11 in relation to the second body 12 along the second adjustment direction Y and

- third adjusting means 25 for adjusting the relative position of the first body 11 in relation to the second body 12 along the third adjustment direction Z.

The first adjustment means 23 contain a first sleeve 26, which carries the end part 13a of the pin 13 and which is movably placed inside the cavity 27, which is defined in the hollow cylindrical part 11b of the first body 11.

The cavity 27 has two surfaces, which are opposite to each other and are parallel to the first direction of adjustment X.

The toothing 28, which extends parallel to the first adjustment direction X and which engages with the corresponding toothing 29, which is defined on one part of the outer side surface of the first sleeve 26, is performed on one of those two surfaces.

According to one particular characteristic of the present invention, the first sleeve 26 on the opposite side in relation to the toothing 29 has a part in contact with the second of the two surfaces of the cavity 27, wherein said contact part is deformable in a plane orthogonal to the axis of rotation A.

The contact part is elastically deformed along the radial planes of the first sleeve 26.

In particular, the contact part is defined by the insert 30, which is connected to the first sleeve 26.

Between the insert 30 and the part of the outer side surface of the first sleeve 26 facing it, there is a free space S.

The insert 30 in cross-section has two opposite ends 30a and 30b (Figs. 6 and 9a), which are limited in respective grooves 31a and 31b formed on the outer side surface of the first sleeve 26.

The insert 30 is made in the form of a strip along a certain part of the height of the first sleeve 26, so that its two opposite ends 30a and 30b are basically made of two ribs that are parallel to the axis of rotation A, and the corresponding grooves 31a and 31b are also made parallel to axis of rotation A.

The part of the insert 30 located between its two opposite ends 30a and 30b is deformable along the radial plane of the first sleeve 26; and especially it can bend elastically.

Between the part of the insert 30 located between its two opposite ends 30a and 30b and the part of the outer side surface of the first sleeve 26 facing it is a free space S, which is defined by the lower seat 32 formed in the first sleeve 26. As seen in the transverse in cross-section, the insert 30 has the shape of an arc-crown part that partially encompasses the first sleeve 26.

In the shown example of execution which is shown in the attached pictures of the drawing, the insert 30 is in the form of a strip or tongue that extends from the ring 33 which is attached to the first sleeve 26 by means of fastening elements, for example a connection provided by a shape or the like, which is not shown in detail, since it is easy for a person skilled in the relevant technical field to understand.

The ring 33 has a passage opening for the first bushing 26, which is conveniently shaped so that during the assembly step it allows the toothing 29 to pass through. The upper part of the first bushing 26, which has a larger cross-section than the last mentioned one, rests and is attached to the ring 33.

According to the following special feature of the present invention, the contact part (i.e. the insert 30) of the first sleeve 26 on the surface of the cavity 27, which lies opposite the toothing 28, has a series of alternating radial recesses and outlets, which are designated as a whole with the reference numeral 34, extending parallel to the axis of rotation A and which mate with corresponding alternating radial recesses and recesses, which as a whole are designated by the reference numeral 35 and are defined on the surface of the cavity 27, which lies opposite the toothing 28.

The distance between two consecutive outlets or recesses 34 and 35 is constant and corresponds to the defined angle of rotation of the first bushing 26. The first bushing 26 is primarily made of metal or a metal alloy ("zama"), while its deformable part, i.e. insert 30 made of polymer material.

The lower end of the first bushing 26 has a shaped seat 36 that can be accessed from the lower end of the hollow cylindrical part 11b of the first body 11 and into which a manipulation element, for example an Allen key, can be manipulated, with which the first bushing 26 can be manipulated so that it then it rotates from the outside.

The rotation of the first sleeve 26, and thus of the pin 13, generates only translational movement between the first body 11 and the second body 12 along the plane P, which is parallel to the first adjustment direction X. During such rotation, the contact part, i.e. the insert 30 remains in contact with the surface of the cavity 27, which lies opposite the teeth 28 and ensures the correct coupling of the teeth 28 and 29.

In addition, at each revolution of the first bushing 26 which corresponds to the distance between successive alternating depressions and outlets due to the elasticity of the contact part itself, a "jump" is generated with respect to the corresponding and opposite series of alternating depressions and outlets 35. Such a jump generates a "click" sound which indicates to the operator that the rotation of the first bushing 26 is equal to the previously specified distance and that therefore there has been a corresponding linear movement between the first body 11 and the second body 12.

In addition, first fastening means are provided for fastening the first sleeve 26 inside the cavity 27 in a position corresponding to the desired adjustment of the relative position of the first body 11 and the second body 12 along the first direction of adjustment X. Such fastening means contain a headless screw or stud screw 37 that engages in the corresponding threaded opening 37a which is made along the radial direction in the wall of the cylindrical part 11b of the first body 11, opposite to the toothing 28. The end of the pin screw 37 which faces the interior of the cavity 27 rests and rests on the corresponding leveled, i.e. aligned surfaces 38, which are performed on the outer side surface of the first sleeve 26, which lies opposite the toothing 29.

The leveled surfaces 38 are defined in the axial direction with an upper tooth 55 and a lower tooth 56, respectively, the function of which is to prevent possible slippage of the first sleeve 26 if it is subjected to loads greater than those allowed. Fig. 9a, 9b and 9c clearly show three different positions, respectively, "zero", maximum and minimum distance of the first body 11 relative to the second body 12 along the first X adjustment direction.

In these Figs. 9a, 9b and 9c is a clearly visible contact between the contact part, i.e. between the insert 30 and the surface of the cavity 27 which lies opposite the serrations 28 and a series of alternating depressions and outlets 34 and 35.

The other adjustment means 24 ("pressure adjustment") comprise a second sleeve 39 which is movably located in a corresponding housing 40, which is defined in the hollow cylindrical part 12b of the second body 12.

The second sleeve 39 has an eccentric cylindrical cavity 41 which receives, with the insertion of a third sleeve 42 which is made of anti-friction material, the end part 13b of the pin 13.

The third bushing 42 is made to rotate as a unit with the second bushing 39 with a prismatic coupling 43 which, as will become clear from the following description, allows relatively free axial sliding movement between them.

At the upper end of the second sleeve 39 is a molded seat 44, which can be accessed from the upper open end of the cylindrical part 12b of the second body 12.

A manipulation element, for example, of the Allen key type, is engaged in the shaped seat 44, by means of which the second sleeve 39 can be manipulated so that it can be rotated from the outside.

The rotation of the second sleeve 39, and thus of the pin 13, generates a relative displacement between the first body 11 and the second body 12 with a component that is parallel to the second displacement direction Y.

On the outer side surface of the second sleeve 39, two longitudinal resting or end stops 45 are provided, which rest on the corresponding resting surfaces 46, which are provided in the housing 40.

The relative position of the first body 11 in relation to the second body 12 along the second adjustment direction Y is fixed by other fastening means, which temporarily block the second sleeve 39 inside the housing 40 and which can be manipulated from the outside. Such other fastening means also comprise a headless screw or stud screw 47 that engages in a corresponding threaded opening 48, which is made in the radial direction in the walls of the hollow cylindrical part 12b of the second body 12.

The head of the pin screw 47, which faces the interior of the housing 40, rests on the corresponding flat facets 49 formed on the outer side surface of the second sleeve 39 and connects with them.

Fig. 10a, 10b and 10c clearly show three different relative positions of the first body 11 in relation to the second body 12 along the second adjustment direction Y ("pressure adjustment").

The third adjustment means 25 ("height adjustment") comprise a threaded element 50, which engages in a corresponding through threaded opening 51, which is made in the upper end part of the second sleeve 39 and has on top a correspondingly shaped seat 52, which can be accessed from the outside sides for engagement using a manipulation element, for example, an Allen key type.

The lower end of the threaded element 50 rests on the bottom of the third sleeve 42.

By rotating the screw element 50 in one direction of rotation or in the opposite direction, the second body 12 moves opposite to the first body 11 along the third adjustment direction Z or closer to it, respectively.

According to the following characteristic of the present invention, the hinge 10 contains a pair of sleeves 53 and 54, one of which is connected to the first sleeve 26, while the other is connected to the second sleeve 39, and they are mutually telescopically connected parallel to the axis of rotation A.

In the shown embodiment, the sleeve 53 is connected to the first sleeve 26 by means of a ring 33, which is made integral with it, as one single body.

On the other hand, the sleeve 54 is placed on the second sleeve 39 and remains blocked between it and the second body 12.

Because of these two arms 53 and 54, which are mutually telescopically connected, the hinge 10 always has, in any state of adjustment of the relative position of the first and second bodies 11 and 12, a structural continuity that does not change the appearance of the window or door frame on which it is installed.

Fig. 11a to 11f clearly show the interaction between the sleeves 53 and 54 while visibly maintaining the structural continuity of the hinge 10 in some possible different relative positions of the first body 11 in relation to the second body 12, such as when adjusting the intermediate space (Fig. 11a and 11b), the pressure ( Fig. 11c and 11d) and by height (Fig. 11e and 11f), respectively.

Fig. 12 to 14 show one possible variant of the hinge 10 according to the present invention, of the so-called "three-wing" type, that is, in which an auxiliary body 120 is provided, which has a wing, which can be attached to the movable frame of the window or door frame and which is rotatable hingedly connected to the first body 11 around the axis of rotation A by means of the next pin 130.

In such a case, when the upper end of the pin 130 engages the molded seat 36 at the lower end of the first bushing 26, then the following molded seat 360 is obtained at the lower end of the pin, which can be accessed from the outside and engages a manipulation element, for example, of the type Allen key, and with which the first sleeve 26 can be rotated.

In an analogous manner as described above, the pin 130 is connected to the auxiliary body 120 by means of corresponding other adjusting means 24, as described above.

In Fig. 12 to 14 are elements that correspond to the embodiment shown in Fig. 1 to 10 marked with the same call signs.

The assembly and adjustment in three different possible directions of the hinge according to the present invention can be immediately understood without any effort by a person skilled in the relevant technical field on the basis of the description and attached drawings.

The adjustable hinge according to the present invention, thanks to the presence of an elastically deformable insert and, as described above, has the advantage of ensuring constant contact of the first adjusting sleeve with the opposite surfaces of the cavity in which it is located, thus re-establishing the clearances between them when they are coupled in any of their relative position.

The adjustable hinge according to the present invention, again thanks to the presence of an elastically deformable insert and, as described above, in addition has the advantage of an instantaneous acoustic indication of the relative movement of the first and second wing bodies along the direction of the gap adjustment, which is intended for the operator.

The adjustable hinge according to the present invention, finally, thanks to the fact that at least one pair of telescopic sleeves is provided, as described above, has the advantage of maintaining the visual continuity of the hinge itself independent of the relative position of the first and second body of the wing along one of the three directions of adjustment (interspace, pressure and altitude).

An adjustable hinge for window or door frames thus devised may be subjected to numerous modifications and variations, all of which are within the scope of the invention; in addition, all details may be replaced by technically equivalent elements. In practice, the materials used, as well as the dimensions, can be adjusted to the technical requirements.

Claims (11)

1. An adjustable hinge (10) for window or door frames that contains: - at least one first body (11) of the wing, which can be attached to the stationary frame of the window or door frame, and at least one second body (12) of the wing, which can be to be attached to the movable frame of the window or door frame, or vice versa, which are connected to each other in a rotatable joint around the axis of rotation (A) by means of a pin (13), - the first adjusting means (23) for adjusting the relative position of the mentioned first body (11) of the wing in relation to said second wing body (12) along the first adjustment direction (X), which is parallel to the plane of said window or door frame and is orthogonal to said axis of rotation (A), - wherein said first adjusting means (23) contain a first sleeve ( 26), which carries the end part (13a) of said pin (13) and which is movably placed inside the cavity (27), which is defined in one of said first body (11) of the wing and said second body (12) of the wing and which has two surfaces which are opposite to each other and are parallel to said first adjustment direction (X), - wherein one of said two surfaces has a serration (28), which extends parallel to said first adjustment direction (X) and which is coupled with a corresponding toothing (29), which is defined on one part of the outer side surface of said first bushing (26), and - wherein said first bushing (26) can be rotated from the outside, and the rotation of said first bushing (26 ), and thus the said pins (13), generates only translational movement along the said first adjustment direction (X) between the said first body (11) of the wing and the said second body (12) of the wing, - the said first sleeve (26) has a part which is in contact with the second of said two surfaces of said cavity (27), wherein said contact part is deformable on a plane orthogonal to said axis of rotation (A) indicated by the fact that the contact part is defined by an insert (30), which is connected to said first sleeve (26) and in the cross-section has the shape of an arched-crown part that partially encompasses the said first sleeve (26), whereby there is a free space between the said insert (30) and the part of the outer side surface of the said first sleeve (26) facing it ( S). 2. Hinge (10) according to claim 1, characterized in that said contact part is elastically deformable along the radial plane of said first sleeve (26). 3. Hinge (10) according to claim 1 or 2, characterized in that said insert (30) in cross-section has two opposite ends (30a, 30b) which are limited by said first sleeve (26), wherein part of said insert ( 30) located between said opposite ends (30a, 30b) deformable along the radial plane of said first sleeve (26). 4. Hinge (10) according to claim 3, characterized by the fact that between said part of said insert (30) said free space (S) is defined, which is included between its said opposite ends (30a, 30b) and the part of the outer side facing it surface of the mentioned first sleeve (26). 5. Hinge (10) according to one or more of the preceding claims, characterized in that said contact part has a series of alternating radial depressions and outlets (34), which extend parallel to said axis of rotation (A) and which are coupled with a corresponding series of radial recesses and outlets (35), which are defined on the surface of the said cavity (27), which lies opposite the said surface having the said toothing (28). 6. Hinge (10) according to claim 5, characterized in that the distance between said two successive outlets or two said successive depressions (34, 35) of said row is constant and corresponds to the defined angle of rotation of said first sleeve (26). 7. A hinge (10) according to one or more of the preceding claims, characterized in that it contains first fastening means for fastening said first sleeve (26) inside said cavity (27), which are connected to that of said first wing body (11) and of said second wing body (12) in which said cavity (27) is defined, and which can be moved from the outside. 8. Hinge (10) according to one or more of the preceding claims, characterized in that it contains other adjusting means (24) for adjusting the relative position of said first body (11) of the wing in relation to said second body (12) of the wing along the second direction of adjustment ( Y) orthogonal to said plane of said window or door frame and containing a second sleeve (39), which is movably placed in a corresponding housing (40), which is defined in the second of said first body (11) of the sash and said second body (12) ) wings and has an eccentric cylindrical cavity (41), which receives the end part (13b) of said pin (13), wherein said second sleeve (39) can be rotated from the outside and wherein the rotation of said second sleeve (39), and thus said pin (13), generates a relative movement between said first body (11) of the wing and said second body (12) of the wing with a component parallel to said second direction of adjustment (Y), which in addition has other fastening means for fixing said second bushings (39) inside said housing (40), which are connected to that of said first wing body (11) and said second wing body (12) in which said housing (40) is defined, and which can be moved from the outside . 9. Hinge (10) according to claim 8, characterized in that it contains a pair of sleeves (53, 54), one of which is connected to said first sleeve (26) and the other to said second sleeve (39) and which are mutually telescopically connected parallel to the mentioned axis of rotation (A). 10. A hinge (10) according to one or more of the preceding claims, characterized in that said first wing body (11) can be attached to said stationary frame of said window or door frame and that said second wing body (12) can be attached to said movable frame of said window or door frame and wherein said cavity (27) is defined in said first body (11) of the sash. 11. A hinge (10) according to one or more of the preceding claims, characterized in that said first sleeve (26) is made of metal or a metal alloy, while said contact part is made of polymeric material.