Closing system for an architectural opening, fixture and method for mounting the fixture

Abstract

A composite fixture (1) comprising: - a first wooden frame (2) comprising a first reference surface (21), and a plurality of first body seats (20); - a second wooden frame (3) comprising a second abutment surface (35) facing the first frame (2), and a plurality of second body seats (30); - at least one panel (4), for example made of glass, supported by the first reference surface (21), between the first frame (2) and the second frame (3) along a coupling direction (C-C); and - a plurality of coupling devices (5), each comprising a first body (6) and a second body (7) respectively housed in a first body seat (20) and a second body seat (30). The first body (6) and the second body (7) are mutually snap-engaged, coupling the first frame and the second frame (3) and locking the at least one panel (4).

Description

[0001] The present invention relates to a closing system for an architectural opening of a building.

[0002] In the course of the description, the term "closing system" refers to a group of components intended to close, at least partially, an architectural opening of a building, for example made through a separation wall between the external environment and the internal environment of the building.

[0003] The closing system is intended to be supported by the architectural elements that perimetrically define the opening of the building, for example a frame or a perimeter structure, and preferably also performs a thermal and acoustic insulation function. The closing system is preferably openable as needed, to allow communication, visual contact, and ventilation between environments.

[0004] The term "closing system" refers, for example, to a door or a window or a French window / door or a skylight.

[0005] In the known art, closing systems are known comprising a fixture, intended to be firmly connected to the architectural elements that perimetrically define the architectural opening, and a frame, movable with respect to the fixture, for example by means of hinges.

[0006] The present invention pertains to the field of composite fixtures. In the course of the description, the term "composite" refers to a fixture comprising a first frame and a second frame, distinct and firmly coupled to one another.

[0007] The union of the first frame and the second frame defines a panel seat for retaining at least one panel, preferably made of glass, for example a single-chamber or double-chamber panel assembly.

[0008] In the field, it is known to manufacture composite fixtures by coupling two frames made of the same material, for example wood-wood or aluminium-aluminium, or made of different materials, for example wood-aluminium or wood-PVC. The materials are selected depending on the type and intended use. For example, for closing systems facing the external environment of the building, it is known to make the external frame exposed to atmospheric agents in more resistant materials, such as aluminium or PVC.

[0009] The present invention pertains to the field of composite fixtures comprising two wooden frames, i.e., fixtures of the wood-wood type.

[0010] According to a known manufacturing method in the field, the uprights and crosspieces forming the frames of the fixture are obtained by performing chip removal operations on a single wooden segment. At the end of such operations, the semi-finished wooden segment is longitudinally divided, obtaining a pair of uprights or crosspieces respectively of the first frame and of the second frame.

[0011] In the field, it is known to couple the first frame and the second frame by means of coupling devices that achieve a stable and reliable coupling of the two frames.

[0012] Innovation in the field is directed at improving such coupling devices of the two frames forming the fixture, in order to overcome the known problems in the field.

[0013] One of the problems relates to their manufacture, as in the field it is required that such coupling devices be easily designable and cost-effective to manufacture industrially.

[0014] Furthermore, in the field it is required that the coupling devices ensure precise positioning between the two frames, in the absence of which the coupling results difficult or impossible.

[0015] Another problem concerns the complexity of assembly, as the operations for assembling the two frames are often not easy and require a non-negligible amount of time, even for the most expert users.

[0016] In the field, coupling devices are known comprising threaded elements, such as screws and grub screws, which partly solve some of the problems mentioned above. However, such devices require the use of templates and screwdrivers, and above all present the risk of damaging the frames or the glass. In addition, threaded elements do not ensure satisfactory alignment, compromising the final quality of the fixture.

[0017] The object of the present invention is to provide a fixture, a closing system, and a method for mounting the fixture that meet the needs of the field and overcome the drawbacks mentioned with reference to the known art.

[0018] An object of the present invention is to provide a fixture that is easily designable and manufacturable.

[0019] Another object of the present invention is to provide a fixture comprising coupling devices with high positioning accuracy of the frames of the fixture.

[0020] A further object of the present invention is to provide a fixture having simplified assembly, for which no specific equipment is required.

[0021] These and other objects are achieved by means of the fixture according to claim 1, the closing system according to claim 11, and the method for mounting the fixture according to claim 12. The dependent claims refer to preferred embodiments that involve further advantageous technical effects.

[0022] The present invention is described below with the aid of the accompanying drawings, in which: figure 1 shows a perspective view of a closing system, according to a preferred embodiment, in accordance with the present invention; figures 2 and 2a respectively show a perspective view and an enlarged detail of a fixture in separated parts, according to a preferred embodiment, in accordance with the present invention; figure 3 shows a perspective view of a portion of a fixture in assembled parts comprising a coupling device in assembled parts, according to a preferred embodiment, in accordance with the present invention; figures 4 and 4a respectively show a perspective view of a portion of a fixture comprising a coupling device in separated parts, according to a preferred embodiment, in accordance with the present invention; figures 5 and 5a respectively show a perspective view of a portion of a fixture comprising a coupling device in separated parts, in a mounting phase different from that of figures 4 and 4a, according to a preferred embodiment, in accordance with the present invention; figures 6 and 6a respectively show a cross-sectional view of the first frame and a cross-sectional view of the second frame, according to a preferred embodiment, in accordance with the present invention; figures 7 and 7a respectively show a coupling device in assembled parts and in separated parts, according to a preferred embodiment, in accordance with the present invention. figures 8 and 8a respectively show a perspective view and an enlarged detail of a fixture in separated parts, according to a preferred embodiment, in accordance with the present invention; figure 9 shows a perspective view of a portion of a fixture in assembled parts comprising a coupling device in assembled parts, according to a preferred embodiment, in accordance with the present invention; figure 10 shows a perspective view of a portion of a fixture comprising a coupling device in separated parts, according to a preferred embodiment, in accordance with the present invention; figures 11 and 11a respectively show a cross-sectional view of the first frame and a cross-sectional view of the second frame, according to a preferred embodiment, in accordance with the present invention; figure 12 shows a coupling device in separated parts, according to a preferred embodiment, in accordance with the present invention.

[0023] In the figures, the number 200 denotes an architectural opening of a building, the reference number 100 denotes a closing system for the architectural opening 200, and the reference number 1 denotes a composite fixture for the closing system 100.

[0024] According to the present invention, the closing system 100 comprises a composite fixture 1.

[0025] In a preferred embodiment, the closing system 100 also comprises a frame 110, and the fixture 1 is movably engaged with respect to said frame 110, for example by means of supporting hinges.

[0026] According to the present invention, the fixture 1 comprises a first wooden frame 2, a second wooden frame 3, and a plurality of coupling devices 5 which join the first frame 2 and the second frame 3.

[0027] In other words, according to the present invention, the fixture 1 is a composite fixture of the wood-wood type.

[0028] Preferably, the fixture 1 is configurable in an assembled configuration, in which the first frame 2 and the second frame 3 are integrally mutually coupled by means of the coupling devices 5, and a disassembled configuration, in which the first frame 2 and the second frame 3 are free and independent from one another. Between the disassembled configuration and the assembled configuration, the first frame 2 and the second frame 3 are coupled along a coupling direction C-C, for example a linear direction.

[0029] In a preferred embodiment, each frame 2, 3 comprises a plurality of uprights 2a, 2b and crosspieces 3a, 3b joined to one another, for example a pair of uprights 2a, 2b and a pair of crosspieces 3a, 3b, which define an imaginary plane of arrangement of the frame.

[0030] Preferably, the coupling direction C-C is orthogonal to both respective imaginary planes of arrangement of the frames 2, 3.

[0031] According to the present invention, the fixture 1 comprises at least one panel 4, preferably made of glass, positioned between the first frame 2 and the second frame 3, for example a single-chamber or double-chamber glass panel assembly.

[0032] Each panel 4 extends mainly on an imaginary panel arrangement plane.

[0033] The coupling of the first frame 2 and the second frame 3 allows positioning and retaining the at least one panel 4 along the coupling direction C-C, in particular with the imaginary panel arrangement plane parallel to the imaginary arrangement planes of the two frames.

[0034] In a preferred embodiment, the first frame 2 is facing the internal environment of a room of the building, while the second frame 3 is facing the external environment of the building. Such embodiment is shown, for example, in figure 1.

[0035] In a preferred embodiment, the second frame 3 is facing the external environment of a room of the building, while the first frame 2 is facing the internal environment. Such embodiment is shown, for example, in figure 8.

[0036] In a preferred embodiment, one of the two frames is load-bearing, i.e., supports the weight of the at least one panel 4, while the other frame 3 is not load-bearing.

[0037] In a preferred embodiment, both frames 2, 3 are at least partially load-bearing.

[0038] In a preferred embodiment, the panel 4 is mainly supported by one of the two frames, for example the first frame 2, while the other frame has a residual load-bearing function, i.e., supports the panel to a lesser extent compared to the other frame, for example it is positioned substantially in abutment or planar contact.

[0039] According to the present invention, the first frame 2 comprises a first reference surface 21 that at least partially supports the at least one panel 4. Preferably, the at least one panel 4 comprises panel edges 45 perimetrically positioned at least partially in abutment with the first reference surface 21 of the first frame 2, in the assembled configuration of the fixture.

[0040] According to the present invention, the first frame 2 comprises a plurality of first body seats 20 open, for example accessible, on the first reference surface 21.

[0041] The selection of the number, position, and distance between two consecutive first body seats is, for example, made based on the type of upright or crosspiece and / or of the fixture. Preferably, the first body seats 20 are distributed, for example equally spaced, on the uprights and / or the crosspieces of the first frame 2.

[0042] In a preferred embodiment, the first frame 2 comprises a first abutment surface 25 positioned facing the second frame 3, preferably in planar abutment with the second frame 3, in the assembled configuration of the fixture.

[0043] Preferably, each first body seat 20 is also open, for example accessible, on the first abutment surface 25.

[0044] Preferably, the first abutment surface 25 extends mainly parallel to the imaginary arrangement plane of the second frame 3.

[0045] Preferably, the coupling direction C-C is orthogonal to the first abutment surface 25.

[0046] In a preferred embodiment, the first frame 2 comprises a first reference shoulder 22 in planar abutment with the panel 4. For example, in the assembled configuration of the fixture, the first reference shoulder 22 is in planar contact with a lateral face 41 of the panel 4, along the coupling direction C-C.

[0047] Preferably, each first body seat 20 is spaced from the first reference shoulder 22 along the coupling direction C-C.

[0048] In a preferred embodiment, for each first body seat 20, the first frame 2 comprises a first seat surface 24 lowered with respect to the first reference surface 21.

[0049] Preferably, the first seat surface 24 is lowered with respect to the first reference surface 21 by a first depth H1.

[0050] In a preferred embodiment, for each first body seat 20, the first frame 2 comprises a first seat edge 23 that perimetrically delimits the first body seat 20 and extends between the first reference surface 21 and the first seat surface 24.

[0051] In a preferred embodiment, for each first body seat 20, the first frame 2 comprises a first auxiliary groove 26 defined at least partially by the first seat edge 23 and lowered with respect to the first seat surface 24.

[0052] In a preferred embodiment, the first seat edge 23 and / or the first auxiliary groove 26 has at least partially a curvilinear shape, for example semicircular.

[0053] In a preferred embodiment, for each first body seat 20, the first frame 2 comprises at least one centering seat, preferably two centering seats 29, each lowered with respect to the first seat surface 24.

[0054] Preferably, the two centering seats 29 are aligned along the coupling direction C-C.

[0055] Preferably, the first frame 2 comprises a central region 295 between the two centering seats 29, along the coupling direction C-C.

[0056] In a preferred embodiment, each centering seat 29 comprises a seat axis Y-Y. Preferably, the seat axes Y-Y are spaced by a seat center-to-center distance Is, along the coupling direction C-C.

[0057] In a preferred embodiment, each centering seat 29 has a cylindrical or frustoconical shape with respect to the seat axis Y-Y.

[0058] In a preferred embodiment, at least one centering seat 29 has a second depth H2 from the first seat surface 24 and along the seat axis Y-Y greater than the first depth H1, preferably increased by about 50% with respect to the first depth H1.

[0059] According to the present invention, the second frame 3 comprises a second abutment surface 35 positioned facing the first frame 2, preferably in planar abutment with the first frame 2, in the assembled configuration of the fixture. For example, in the assembled configuration of the fixture, the second abutment surface 35 is in contact with the first abutment surface 25 of the first frame 2, along the coupling direction C-C.

[0060] Preferably, the second abutment surface 35 extends mainly parallel to the imaginary arrangement plane of the second frame 3.

[0061] Preferably, the coupling direction C-C is orthogonal to the second abutment surface 35.

[0062] In a preferred embodiment, the second frame 3 comprises a second reference surface 31 that supports the at least one panel 4. This feature is shown by way of example in figures 3 to 5 and in figure 6a.

[0063] Preferably, the at least one panel 4 comprises panel edges 45 perimetrically positioned at least partially in abutment with the second reference surface 31 of the second frame 3, in the assembled configuration of the fixture.

[0064] In a preferred embodiment, the second frame 3 is devoid of a reference surface to support the at least one panel 4. This feature is shown by way of example in figures 9, 10, and 11a.

[0065] According to the present invention, the second frame 3 comprises a plurality of second body seats 30 open, for example accessible, on the second abutment surface 35.

[0066] In a preferred embodiment, the second body seats 30 are open, for example accessible, also on the second reference surface 31.

[0067] The selection of the number, position, and distance between two consecutive second body seats 30 is, for example, made based on the type of upright or crosspiece and / or of the fixture. Preferably, the second body seats 30 are distributed, for example equally spaced, on the uprights and / or the crosspieces of the first frame 2.

[0068] In a preferred embodiment, the first body seats 20 and the second body seats 30 are positioned in such a way that, in the assembled configuration of the fixture, each first body seat 20 is at least partially facing a second body seat 30 along the coupling direction C-C. Preferably, the union of a first body seat 20 and a second body seat 30 defines a device seat, in which a coupling device 5 is housed, preferably entirely.

[0069] In a preferred embodiment, the second frame 3 comprises a second reference shoulder 32 in planar abutment with the panel 4. For example, in the assembled configuration of the fixture, the second reference shoulder 32 is in planar contact with a lateral face 42 of the panel 4 along the coupling direction C-C.

[0070] Preferably, the second reference shoulder 32 is joined to the second reference surface 31, for example extends perpendicularly from the second reference surface 31.

[0071] In a preferred embodiment, each second body seat 30 is lowered into the second reference shoulder 32 along the coupling direction C-C.

[0072] In a preferred embodiment, for each second body seat 30, the second frame 3 comprises a pair of second seat surfaces 34 extending in a planar and mutually facing manner.

[0073] In particular, the second seat surfaces 34 are mutually facing in an incident direction, for example transverse, to the coupling direction C-C.

[0074] Preferably, one second seat surface 34 is lowered with respect to the second reference surface 31. Preferably, the other second seat surface 34 forms an undercut in the second reference shoulder 32.

[0075] In a preferred embodiment, for each second body seat 30, the second frame 3 comprises a second seat edge 33 extending between the two second seat surfaces 34 and perimetrically delimiting the second body seat 30.

[0076] In a preferred embodiment, for each second body seat 30, the first frame 2 comprises a second auxiliary groove 36 defined at least partially by the second seat edge 33 and lowered with respect to one second seat surface 34.

[0077] In a preferred embodiment, for each second body seat 30, the first frame 2 comprises two auxiliary grooves 36, 36a joined by the second seat edge 33, for example having substantially the same characteristics.

[0078] In a preferred embodiment, the second seat edge 33 and / or at least one second auxiliary groove 36, 36a has at least partially a curvilinear shape, for example semicircular.

[0079] According to the present invention, each coupling device 5 comprises a first body 6 and a second body 7. The first body 6 is housed in a first body seat 20 of the first frame 2. The second body 7 is housed in a second body seat 30 of the second frame 3.

[0080] In the assembled configuration of the fixture, the first body 6 and the second body 7 are mutually snap-engaged, coupling the first frame and the second frame 3 and locking the at least one panel 4 between the first frame and the second frame 3 along the coupling direction C-C.

[0081] In particular, the action of the first body 6 and the second body 7 along the coupling direction C-C retains the at least one panel 4 between the first frame and the second frame 3 and prevents mutual separation between the first frame 2 and the second frame 3.

[0082] In other words, with the first bodies 6 and second bodies 7 mutually snap-engaged, the fixture 1 is in the assembled configuration.

[0083] In a preferred embodiment, the first body 6 and / or the second body 7 is made of plastic material, for example by single-piece moulding.

[0084] In a preferred embodiment, the first body 6 and / or the second body 7 has an overall planar shape, i.e., having a smaller dimension, in particular the thickness, compared to the other two dimensions.

[0085] In a preferred embodiment, the first body comprises a planar portion 60, i.e., having a reduced dimension, in particular the thickness, compared to the other two dimensions.

[0086] In a preferred embodiment, the first body comprises a recess 61 lowered in the planar portion 60.

[0087] Preferably, the planar portion 60 comprises a first base portion 62.

[0088] Preferably, the planar portion 60 comprises a pair of lateral arms 63 extending from the first base portion 62 along the coupling direction C-C, and preferably laterally delimiting the recess 61.

[0089] In a preferred embodiment, the planar portion 60 comprises a first lateral edge 64 that perimetrically defines the first base portion 62, preferably having at least partially a curvilinear shape, for example semicircular.

[0090] Preferably, the first body 6 being housed in the first body seat 20, the first lateral edge 64 faces the first seat edge 23, for example at least partially in contact with the first seat edge 23.

[0091] In a preferred embodiment, the planar portion 60 comprises a first guide edge 66 protruding from the first base portion 62, preferably joined to the first lateral edge 64, preferably having at least partially a curvilinear shape, for example semicircular.

[0092] Preferably, the first body 6 being housed in the first body seat 20, the first guide edge 66 is housed in the first auxiliary groove 26, for example realizing a shape or interference coupling.

[0093] In a preferred embodiment, the planar portion 60 comprises a base plate 67 of substantially planar shape that closes the first body seat 20, for example extending parallel to the first reference surface 21.

[0094] Preferably, in the first body seat 20, the base plate 67 defines a coupling chamber with the first seat surface 24.

[0095] Preferably, the base plate 67 at least partially delimits the recess 61.

[0096] Preferably, the base plate 67 extends between the two lateral arms 63.

[0097] Preferably, an abutment element 65, which will be described in detail below, extends from the base plate 67 towards the first seat surface 24.

[0098] In a preferred embodiment, the first body 6 comprises at least one centering element 69, preferably two centering elements 69, each housed in a respective centering seat 29.

[0099] Preferably, at least one centering element 69 protrudes with respect to the planar portion 60.

[0100] In a preferred embodiment, the centering elements 69 are aligned along the coupling direction C-C.

[0101] Preferably, each centering element 69 comprises an element axis X-X.

[0102] Preferably, at least one centering element 69 has a substantially cylindrical or frustoconical or conical cross-section. This feature is shown by way of example in figure 7a.

[0103] Preferably, at least one centering element 69 has a substantially polygonal cross-section, for example hexagonal. This feature is shown by way of example in figure 12.

[0104] In a preferred embodiment, the element axes X-X are spaced by an element center-to-center distance Ie along the coupling direction C-C.

[0105] In a preferred embodiment, the element center-to-center distance Ie of the centering elements 69 is smaller than or equal to the seat center-to-center distance Is of the centering seats 29.

[0106] Preferably, the centering elements 69 are housed with slight interference in the centering seats 29.

[0107] In a preferred embodiment, the centering elements 69 housed in the centering seats 29 retain the first body 6 in the first body seat 20, in particular they prevent or limit movement of the first body 6 along the coupling direction C-C and / or along the element axes.

[0108] Preferably, the centering elements 69 pinch the central portion 295 of the first frame 2 between them.

[0109] In a preferred embodiment, at least one centering element 69 extends from the first base portion 62.

[0110] In a preferred embodiment, at least one centering element 69 extends from an abutment element 65, which will be described in detail below.

[0111] In a preferred embodiment, the second body 7 comprises a second base portion 72, for example predominantly planar.

[0112] Preferably, the second body 7 comprises a second lateral edge 74 that perimetrically defines the second base portion 72, preferably having at least partially a curvilinear shape, for example semicircular.

[0113] Preferably, the second body 7 comprises a second guide edge 76 protruding from the second base portion 72, preferably joined to the second lateral edge 74, preferably having at least partially a curvilinear shape, for example semicircular.

[0114] In a preferred embodiment, the second body 7 comprises two second guide edges 76, 76a joined by the second lateral edge 74, for example having substantially the same characteristics.

[0115] Preferably, the second body 7 being housed in the second body seat 30, the second lateral edge 74 faces the second seat edge 33, for example at least partially in contact with the second seat edge 33.

[0116] Preferably, the second body 7 being housed in the second body seat 30, the at least one second guide edge 76, 76a is housed in the at least one second auxiliary groove 36, 36a, for example realizing a shape or interference coupling.

[0117] In a preferred embodiment, one between the first body 6 and the second body 7, for example the first body 6, comprises an abutment element 65, and the other body 7, for example the second body 7, comprises a connection element 75 elastically deformable and configured to snap-engage the abutment element 65.

[0118] For reasons of clarity and simplicity, in accordance with the embodiments shown in the accompanying figures, it is defined that the first body 6 comprises the abutment element 65 and the second body 7 comprises the elastically deformable connection element 75. However, in a preferred embodiment not represented in the accompanying figures, the first body 6 comprises the elastically deformable connection element 75, and the second body 7 comprises the abutment element 65.

[0119] In a preferred embodiment, the connection element 75 protrudes at least partially outside the first body seat 20.

[0120] In the assembled configuration of the fixture, the connection element 75 snap-engages the abutment element 65 inside the second body seat 30. In particular, the connection element 75 is at least partially housed in the recess 61, for example in the coupling chamber.

[0121] In a preferred embodiment, the abutment element 65 is positioned in the recess 61 of the first body 6.

[0122] In a preferred embodiment, the abutment element 65 has a substantially wedge shape and comprises at least one sliding surface 655, for example substantially planar, inclined with respect to the coupling direction C-C.

[0123] Preferably, the abutment element 65 comprises a pair of sliding surfaces 655 intersecting each other.

[0124] In a preferred embodiment, the abutment element 65 comprises a hooking portion 651, for example substantially planar, preferably positioned between two sliding surfaces 655.

[0125] Between the disassembled configuration and the assembled configuration, the connection element 75 slides along the sliding surface 655, deforming elastically until it reaches and snap-engages the hooking portion 651.

[0126] In a preferred embodiment, the connection element 75 is an arm or tine that extends in a cantilevered manner from the second base portion 72, along the coupling direction C-C.

[0127] In a preferred embodiment, the connection element 75 comprises a hooked end 751, and a free end 652 of the hooking portion 651 forms an undercut with the hooked end 751.

[0128] Preferably, the first body 6 and the second body 7 being mutually engaged along the coupling direction C-C, the hooked end 751 is proximal, for example spaced, from the first base portion 62, for example positioned between the first base portion 62 and the hooking portion 651.

[0129] In a preferred embodiment, the second body 7 comprises a pair of mutually facing connection elements 75.

[0130] In a preferred embodiment, the second body 7 comprises a pair of secondary connection elements 77 distinct and elastically deformable independently from the connection elements 75.

[0131] Preferably, the secondary connection elements 77 are proximal to the connection elements 75, for example proximal to the hooked end 751, and are configured to limit the elastic deformation of the connection elements 75, for example generated by an action of separating of the two frames 2, 3.

[0132] In a preferred embodiment, each secondary connection element 77 is an arm or tine extending in a cantilevered manner from the second base portion 72, along the coupling direction C-C, for example parallel to and spaced from the connection elements 75.

[0133] In a preferred embodiment, the second body 7 is housed in the second body seat 30 in a rotatable manner. Preferably, the second body 7 is rotatable about a rotation axis R-R orthogonal to the coupling direction C-C.

[0134] By rotating the second body 7, the position of the connection element 75 varies along the coupling direction C-C.

[0135] In other words, by rotating the second body 7, it is possible to adjust the position of the connection element 75 with respect to the abutment element 65.

[0136] In a preferred embodiment, the second body 7 comprises an end-stroke tooth 78, for example protruding with respect to the second base portion 72, positioned externally to the second body seat 30 and placeable in abutment with the second frame 3, for example with the second reference shoulder 32, to prevent rotation of the second body 7.

[0137] In particular, the end-stroke tooth 78 prevents further rotation of the second body 7 in one direction, and preferably allows rotation of the second body 7 in the other direction.

[0138] Preferably, the end-stroke tooth 78 allows positioning the second body 7 in a predefined angular coupling position, in which the connection element 75 is aligned to engage the abutment element 65.

[0139] The position of the end-stroke tooth 78 depends on the rotation direction of insertion of the second body 7 into the second body seat 30. In the embodiment shown by way of example in figures 4a and 5a, the end-stroke tooth 78 prevents rotation of the second body 7 in the clockwise direction S1-S1. In the embodiment shown by way of example in figure 10, the end-stroke tooth 78 prevents rotation of the second body 7 in the counterclockwise direction S2-S2.

[0140] In a preferred embodiment, the first body 6 is insertable into the first body seat 20 along a first linear direction F-F, preferably orthogonal to the first reference surface 21.

[0141] In a preferred embodiment, the second body 7 is insertable into the second body seat 30 along a second circular direction S1-S1; S2-S2, starting from the second abutment surface 35.

[0142] Also subject of the present invention is a method for mounting a fixture 1 having the characteristics described above, comprising the steps of: a) inserting each first body 6 into each first body seat 20 of the first frame 2, along a first direction F-F; b) inserting each second body 7 into each second body seat 30, along a second direction S1-S1; S2-S2 different from the first direction F-F; c) positioning the at least one panel 4 on the first reference surface 21 of the first panel 4; d) coupling the second frame 3 to the first frame 2 along the coupling direction C-C, snap-engaging the second body 7 and the first body 6 and locking the at least one panel 4 between the first frame and the second frame 3.

[0143] In a preferred embodiment, the mounting method provides that the first direction F-F is a linear direction, preferably orthogonal to the first reference surface 21 of the first frame 2.

[0144] In a preferred embodiment, the mounting method provides that the second direction S1-S1; S2-S2 is a circular direction, preferably around a rotation axis R-R orthogonal to the coupling direction C-C.

[0145] In a preferred embodiment, the mounting method provides that the second frame 3 is positioned in such a way that at least one panel 4 is also positioned on the second reference surface 31 of the second frame 3.

[0146] In a preferred embodiment, the mounting method provides that, to insert the second body 7 into the second body seat 30, the at least one second guide edge 76, 76a is first inserted into the at least one second auxiliary groove 36, 36a, and subsequently the second body 7 is rotated, causing the at least one second guide edge 76, 76a to slide along the at least one second auxiliary groove 36, 36a.

[0147] In a preferred embodiment, the mounting method provides that, to insert the second body 7 into the second body seat 30, the connection element 75, for example the hooked end 751, is first inserted into the second body seat 30, and subsequently the second body 7 is rotated until the at least one second guide edge 76, 76a slidingly engages the at least one second auxiliary groove 36, 36a.

[0148] Preferably, the rotation ends upon reaching a predefined angular position of the second body 7, in which the end-stroke tooth 78 is in abutment with the second frame 3.

[0149] Innovatively, the fixture, the closing system, and the method for mounting the fixture fully achieve the intended purposes, overcoming the problems of the prior art.

[0150] Advantageously, the fixture is easily designable and economically advantageous for industrial production.

[0151] Advantageously, the fixture comprises coupling devices with high positioning accuracy of the frames, ensuring high final quality of the fixture. Advantageously, the precise positioning of the frames ensures optimal conditions for gaskets or other insulating elements.

[0152] Advantageously, the fixture has a simplified assembly, thus executable even by non-specialised installers.

[0153] Advantageously, the coupling devices are designed to be manually inserted, by quick and error-proof operations.

[0154] Advantageously, the coupling devices are self-centering and automatically aligning during the coupling of the frames.

[0155] Advantageously, the coupling devices do not require the manual application of forces, improving the ergonomics of the assembly.

[0156] Advantageously, the fixture does not require specific equipment such as templates and screwdrivers for the assembly of the frames.

[0157] Advantageously, the fixture is designed to withstand extreme weather conditions.

[0158] It is clear that a person skilled in the art, in order to meet contingent needs, could make modifications to the invention described above, all within the scope of protection as defined by the following claims.

Claims

1. A composite fixture (1) for a system (100) for closing an architectural opening (200) of a building, the fixture (1) comprising: - a first wooden frame (2) comprising a first reference surface (21) and a plurality of first body seats (20) open on the first reference surface (21); - a second wooden frame (3) comprising a second abutment surface (35) facing the first frame (2) along a coupling direction (C-C), and a plurality of second body seats (30) open on the second abutment surface (35); - at least one panel (4), preferably made of glass, positioned between the first frame (2) and the second frame (3) along the coupling direction (C-C) and supported at least partially by the first reference surface (21) of the first frame (2); and - a plurality of coupling devices (5), each comprising a first body (6) and a second body (7) respectively housed in a first body seat (20) and a second body seat (30), wherein the first body (6) and the second body (7) are mutually snap-engaged, coupling the first frame (2) and the second frame (3) and locking the at least one panel (4) between the first frame (2) and the second frame (3).

2. Fixture (1) according to claim 1, wherein, for each first body seat (20), the first frame (2) comprises a first seat surface (24) lowered with respect to the first reference surface (21), and two centering seats (29) lowered with respect to the first seat surface (24), wherein the first body (6) comprises two centering elements (69) respectively housed in the two centering seats (29).

3. Fixture (1) according to claim 2, wherein the centering elements (69) are aligned along the coupling direction (C-C).

4. Fixture (1) according to claim 2 or claim 3, wherein the centering elements (69) comprise respective element axes (X-X) spaced by an element center-to-center distance (Ie) along the coupling direction (C-C), and wherein the centering seats (29) comprise respective seat axes (Y-Y) spaced by a seat center-to-center distance (Is) along the coupling direction (C-C), wherein the element center-to-center distance (Ie) is less than or equal to the seat center-to-center distance (Is).

5. Fixture (1) according to any one of the preceding claims, wherein one of the first body (6) and the second body (7), for example the first body (6), comprises an abutment element (65), and the other body (7), for example the second body (7), comprises an elastically deformable connection element (75), wherein the connection element (75) protrudes at least partially from one of the two body seats (30), for example the second body seat (30), and snap-engages the abutment element (65) in the other body seat (30), for example the first body seat (20).

6. Fixture (1) according to claim 5 in combination with any one of claims 2 to 4, wherein at least one centering element (69) extends from the abutment element (65).

7. Fixture (1) according to claim 6 or claim 5 in combination with any one of claims 2 to 4, wherein the first body (6) comprises a planar portion (60), from which at least one centering element (69) protrudes, and a recess (61) lowered in the planar portion (60), wherein the abutment element (65) and at least partially the connection element (75) are housed in the recess (61).

8. Fixture (1) according to any one of claims 5 to 7, wherein the connection element (75) comprises a hooked end (751), wherein the abutment element (65) comprises a hooking portion (651) comprising a free end (652), wherein the free end (652) forms an undercut with the hooked end (751).

9. Fixture (1) according to any one of claims 5 to 8, wherein the body (7) comprising the connection element (75), for example the second body (7), is housed in the body seat (30), for example the second body seat (30), in a rotatable manner to allow adjusting the position of the connection element (75) along the coupling direction (C-C).

10. Fixture (1) according to claim 9, wherein the body (7) comprising the connection element (75), for example the second body (7), comprises an end-stroke tooth (78) positioned abutting against the frame (3) outside the body seat (30).

11. A closing system (100) for an architectural opening of a building, for example a window or a French window / door, comprising a fixture (1) according to any one of the preceding claims.

12. A method of mounting a fixture (1) according to any one of claims 1 to 10, comprising the following steps: a) inserting each first body (6) into each first body seat (20), along a first direction (F-F); b) inserting each second body (7) into each second body seat (30), along a second direction (S1-S1; S2-S2) different from the first direction (F-F); c) positioning the at least one panel (4) on the first reference surface (21) of the first frame (2); d) coupling the second frame (3) to the first frame (2) along the coupling direction (C-C), snap-engaging the second body (7) and the first body (6) and locking the at least one panel (4) between the first frame and the second frame (3).

13. Mounting method according to claim 12, wherein the first direction (F-F) is a linear direction, preferably orthogonal to the first reference surface (21), and wherein the second direction (S1-S1; S2-S2) is a circular direction, preferably about a rotation axis (R-R) orthogonal to the coupling direction (C-C).

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