[0001] The present invention relates to a folding movable panels system.
[0002] In the prior art, there are known solutions for movable panels systems that, according
to requirements, make it possible to close off an environment, for example a veranda.
[0003] In particular, a movable panels system is configurable in a closing configuration,
in which the panels are arranged longitudinally and separate the two adjacent environments,
and a packaged configuration, in which the panels are rotated and mutually adjacent
in such a way as to connect the two environments.
[0004] In the prior art, there are solutions for movable panels systems known as "folding
door" or "bi-folding door" systems. Specifically, there are different types of movable
panels systems, for example "bi-folding door with access door", "hybrid sliding and
bi-folding" and "sliding center folding" systems.
[0005] In the known embodiments, the panels are typically made of glass and are large in
size, allowing for natural lighting of an environment, even with panels in the closed
position.
[0006] Within the sector, movable panels systems are known wherein said panels are engaged
to an upper guide which is in turn attached to a ceiling or a beam whereupon, therefore,
the full force of the weight of the panels is entirely born.
[0007] The main problem with the known solutions is in relation to the dimensions of the
panels which in the technical sector are required to be increasingly more significant.
[0008] Firstly, as the dimensions increase, the support and movement of the panels becomes
a critical factor in the design and life of associated systems.
[0009] Secondly, in some cases or for some types of installations, for example for outdoor
use, the characteristics of the building or the load-bearing structure do not permit
the installation of known movable panels systems.
[0010] In addition, in some known solutions, the presence of panels of significant dimensions
has been the cause of structural problems in relation to the upper beams whereupon
they bear.
[0011] The object of the present invention is to present a movable panels system that meets
the aforementioned needs and overcomes the aforementioned disadvantages.
[0012] This object is achieved by the movable panels system claimed in claim 1. The claims
dependent on these request protection for further features and entail further technical
benefits.
[0013] In addition, further features and advantages of the invention will become clear from
the description provided below of the preferred embodiments thereof given as non-limiting
examples in reference to the attached figures, wherein:
- Figures 1, 1a and 1b show a perspective view of the movable panels system in accordance
with the present invention, according to a preferred embodiment, respectively in the
closing configuration, in an intermediate configuration and in a packaged configuration;
- Figure 2 depicts a perspective view of separate parts of the movable panels system
in accordance with the present invention, according to a preferred embodiment;
- Figure 2a shows a lateral view of the movable panels systems in accordance with the
present invention, according to a preferred embodiment;
- Figure 3 shows a cross-sectional view of the movable panels system of Figure 2a, along
the section plane A-A, according to a preferred embodiment;
- Figures 3a and 3b show an enlarged detail of Figure 3, respectively within a region
proximal to the upper guide and the lower guide;
- Figure 4 shows a cross-sectional view of the movable panels system of Figure 2a, along
the sectional plane B-B, according to a preferred embodiment;
- Figures 4a and 4b show an enlarged detail of Figure 4, respectively within a region
proximal to the upper guide and to the lower guide;
- Figures 5 and 5a show a load-bearing carriage group of the movable panels system according
to the present invention, according to a preferred embodiment, respectively mounted
and in separate parts;
- Figures 6 and 6a show a hinge device of the movable panels system according to the
present invention, according to a preferred embodiment, respectively mounted and in
separate parts;
- Figures 7 and 7a show a head bearing group of the movable panels system according
to the present invention, according to a preferred embodiment, respectively mounted
and in separate parts;
- Figures 8 and 8a show a head hinge device of the movable panels system according to
the present invention, according to a preferred embodiment, respectively mounted and
in separate.
[0014] With reference to the attached figures, the folding movable panels system is indicated
in the entirety thereof with the number 1.
[0015] According to the present invention, the movable panels system 1 comprises a longitudinal
axis X-X, for example parallel to a ground plane P, and a vertical axis V-V.
[0016] According to the present invention, the movable panels system 1 comprises a lower
guide 2 resting on the ground plane P and a vertically spaced upper guide 3.
[0017] According to a preferred embodiment, the lower guide 2 and the upper guide 3 are
implemented at least partially by means of extrusion, for example from metal.
[0018] According to the present invention, the lower guide 2 comprises at least one rail
20 extending along the longitudinal axis X-X.
[0019] According to a preferred embodiment, the rail 20 has a T-shaped cross-section, comprising
a protruding rail head 25.
[0020] According to a preferred embodiment, the lower guide 2 comprises at least one pair
of rails 20 spaced apart transversely.
[0021] According to a preferred embodiment, the lower guide 2 comprises two auxiliary partitions
27, spaced apart transversely, which extend along the longitudinal axis X-X and define
an auxiliary housing 270, which is described in greater detail hereinafter.
[0022] According to a preferred embodiment, the auxiliary partitions 27 have an inverted
L-shaped cross-section.
[0023] According to a preferred embodiment, the auxiliary partitions 27 are transversely
comprised between two rails 20 of the lower guide 2.
[0024] According to the present invention, the movable panels system 1 comprises a plurality
of movable panels 4a, 4b of a planar shape, preferably made of glass, mutually hinged,
and each comprising a lower edge 42a, 42b and an upper edge 43a, 43b.
[0025] According to a preferred embodiment, the movable panels system 1 comprises at least
one connecting hinge device, preferably two vertically spaced connecting hinge devices.
The connecting hinge device is engaged with each pair of adjacent panels, preferably
with respective side edges of the two adjacent panels. The desired "book" or "bellows"
effect of the movable sliding panels is obtained by means of the connection hinge
device.
[0026] In particular, the movable panels system 1 comprises at least one sliding panel 4a
movable along the longitudinal axis X-X.
[0027] Preferably, the sliding panel 4a engages in a sliding manner on a relevant rail 20.
[0028] According to a preferred embodiment, the movable panels system 1 comprises a plurality
of sliding panels 4a mutually hinged and sliding on a relevant rail 20 along the longitudinal
axis X-X.
[0029] According to the present invention, the movable panels system 1 comprises rotation
and sliding means operatively connected to the sliding panel 4a, suitable for allowing
the rotation and sliding of said sliding panel 4a.
[0030] The rotation and sliding means comprise a load-bearing carriage group 5 and a hinge
device 6.
[0031] According to the present invention, the hinge device 6 is engaged to the upper edge
43a of the sliding panel 4a and is housed in a rotationally and freely sliding manner
at least partially in the upper guide 3.
[0032] According to the present invention, the load-bearing carriage group 5 is engaged
to the lower edge 42a and comprises a supporting body 50 and a plurality of wheels
53.
[0033] Preferably, each wheel 53 is engaged in a slidingly free manner to the at least one
rail 20 and hinged in a rotationally free manner to the supporting body 50 in a wheel
axis W-W substantially parallel to the ground plane P, for example substantially horizontal.
[0034] That is, the supporting body 50 translates along the rail 20 by means of the wheels
53.
[0035] Preferably, the load-bearing carriage 5 comprises at least two wheels 53 positioned
on opposite sides.
[0036] Preferably, the load-bearing carriage group 5 comprises at least two pairs of wheels
53, each pair being positioned on one side, wherein the wheels 53 of each pair are
longitudinally aligned.
[0037] According to a preferred embodiment, the load-bearing carriage group 5 comprises
at least one auxiliary wheel 54 hinged to the supporting body 50 in a substantially
vertical auxiliary axis Q-Q. Preferably, the load-bearing carriage group 5 comprises
at least two auxiliary wheels 54 positioned on opposite sides.
[0038] In particular, each auxiliary wheel 54 is engaged in a sliding manner to the auxiliary
partitions 27 in the auxiliary housing 270 defined therebetween.
[0039] According to a preferred embodiment, the auxiliary wheel 54 engages the lower guide
2 in such a way as to prevent detachment in the vertical direction, i.e., to prevent
lifting of the panels 4a, 4b.
[0040] According to the present invention, the load-bearing carriage group 5 further comprises
a lower pin 51 extending along a substantially vertical first rotation axis R1-R1,
engaged to the supporting body 50. In addition, the load-bearing carriage group 5
comprises a lower body 52 engaged to the sliding panel 4a and to the lower edge 42a,
and engaged in a rotationally free manner to the supporting body 50 by means of the
lower pin 51.
[0041] According to the present invention, the load-bearing carriage group 5 comprises a
thrust bearing 55, suitable for receiving forces acting along the first rotation axis
R1-R1, engaged to the lower pin 51 and engaged to the supporting body 50 or to the
lower body 52, suitable for allowing the rotation of the lower body 52 in relation
to the supporting body 50.
[0042] In other words, the load-bearing carriage group 5 supports the sliding panel 4a sliding
along the longitudinal axis X-X in discharging the force of weight of said sliding
panel 4a onto the rail 20. Specifically, the lower pin 51 receives the force of weight
of the sliding panel 4a from the lower body 52 and applies it to the supporting body
50 by means of the thrust bearing 55. At the same time, the load-bearing carriage
group 5 allows the rotation of the sliding panel 4a around the first rotation axis
R1-R1, by means of coupling the lower pin 51 and the thrust bearing 55.
[0043] According to a preferred embodiment, the supporting body 50 comprises a housing 500,
in which the thrust bearing 55 is housed, and the lower pin 51 comprises an engagement
portion 511 engaged to the thrust bearing 55 within said housing 500. Preferably,
the lower pin 51 comprises a rotation portion 512 integrally connected in rotation
to the lower body 52.
[0044] That is, the lower pin 51, the lower body 52 and the sliding panel 4a are integrally
connected in rotation.
[0045] According to a different embodiment, the thrust bearing 55 is housed integrally connected
in the lower body 52, the rotation portion 512 is engaged in a rotationally free manner
to the thrust bearing 55, and the engagement portion 511 is engaged to the supporting
body 50. Thus, during the rotation of the sliding panel 4a, the lower pin 51 is in
a fixed angular position.
[0046] According to a preferred embodiment, the upper guide 3 comprises a sliding seat 30,
for example defined by a plurality of walls and partitions preferably obtained as
one piece with the upper guide 3.
[0047] According to a preferred embodiment, the hinge device 6 comprises an upper body 62
integrally connected to the sliding panel 4a and to the upper edge 43a, and an upper
pin 61 extending along the first rotation axis R1-R1, i.e. vertically aligned with
the lower pin 51, integrally connected to the upper body 62.
[0048] The hinge device 6 further comprises an annular element 63 supported in a rotationally
free manner by the upper pin 61 and engaged in a sliding manner to the upper guide
3 in the sliding seat 30.
[0049] Preferably, during the sliding of the sliding panel 4a, the annular member 63 rotates
coaxially to the upper pin 61, sliding along the upper guide 43, thereby facilitating
the movement thereof.
[0050] The type of folding movable panels system anticipates that the lower pin 51 and the
upper pin 61 translate vertically aligned along the guides 2, 3, i.e. along the longitudinal
axis X-X.
[0051] According to a preferred embodiment, the plurality of panels comprises a head panel
4b, rotatable around a second rotation axis R2-R2 and fixed along the longitudinal
axis X-X.
[0052] The movable panels system 1 comprises rotation means operatively connected to the
head panel 4b, comprising a head hinge device 7 engaged at the upper edge 43b, suitable
for allowing the rotation of the head panel 4b relative to the upper guide 3.
[0053] In addition, the rotating means comprise a head bearing group 8 engaged at the lower
edge 42b, comprising a base body 80, engaged to the lower guide 2 in a fixed position
along the longitudinal axis X-X, and a lower head pin 81 that extends along the second
rotation axis R2-R2, engaged to the base body 80.
[0054] The head bearing group 8 also comprises a lower head body 82 engaged to the head
panel 4b and to the lower edge 42b, and engaged in a rotationally free manner to the
base body 80 by means of the lower head pin 81.
[0055] In addition, preferably, the head bearing group 8 comprises a head thrust bearing
85, engaged at the lower head pin 81 and engaged to the base body 80 or the lower
head body 82, suitable for allowing the rotation of the lower head body 82.
[0056] In other words, the lower head pin 81 receives the force of weight of the head panel
4b and applies it to the base body 80 by means of the head thrust bearing 85. At the
same time, the head bearing group 8 allows the rotation of the sliding panel 4a around
the first rotation axis R1-R1, by means of coupling the lower head pin 81 and the
head thrust bearing 85.
[0057] According to a preferred embodiment, the base body 80 comprises a base housing 800
in which a head thrust bearing 85 is housed, and the lower head pin 81 comprises a
lower portion 811 engaged in a rotationally free manner to the head thrust bearing
85 in said base housing 800, and an upper portion 812 integrally connected to the
lower head body 82.
[0058] According to a different embodiment, the head thrust bearing 85 is housed integrally
connected in the lower head body 82, the upper portion 512 is engaged in a rotationally
free manner to the head thrust bearing 85, and the lower portion 811 is engaged to
the base body 80. Thus, during the rotation of the head panel 4b, the lower head pin
81 is in a fixed angular position.
[0059] According to a preferred embodiment, the base body 80 comprises an upper base portion,
wherefrom the lower head pin 84 protrudes, and a lower base portion 806, facing the
lower guide 2.
[0060] Preferably, the base body 80 comprises an anti-lifting profile 808 housed in said
lower base portion 806, having a complementary shape to the auxiliary housing 270,
in which it is inserted.
[0061] According to a preferred embodiment, the base body 80 is at least partially insertable
into the lower rail 2, by means of sliding the anti-lifting profile 808 into the auxiliary
housing 270, along the longitudinal axis X-X.
[0062] According to a preferred embodiment, the anti-lifting profile 808 engages the lower
guide 2 in such a way as to prevent detachment in the vertical direction, i.e., to
prevent accidental lifting of the panels 4a, 4b.
[0063] According to a preferred embodiment, the base body 80 further comprises at least
one backing profile 809 housed in the lower base portion 806, positioned vertically
abutting against a relevant rail 20, preferably a head rail 25.
[0064] According to a preferred embodiment, wherein the head hinge device 7 comprises an
anchoring body 70 engaged to the upper guide 3, in a fixed position along the longitudinal
axis X-X, and an upper head pin 71 extending along the second rotation axis R2-R2,
engaged to the anchoring body 70.
[0065] In addition, preferably the head hinge device 7 comprises an upper head body 72 integrally
connected to the head panel 4b and to the upper edge 43b, and engaged in a rotationally
free manner to the anchoring body 70 by means of the upper head pin 71.
[0066] Preferably, the upper head pin 71 and the lower head pin 84 are vertically aligned
along the second rotation axis R2-R2, at a fixed position along the longitudinal axis
X-X.
[0067] According to a preferred embodiment, the head hinge device 7 comprises an anti-lifting
element 75 which is preferably annular in shape, for example, open circumferentially,
coaxial to the upper head pin 71. Preferably, the anti-lifting element 75 is suitable
for preventing the lower head pin 81 from slipping off from the base housing 800,
along the second rotation axis R2-R2.
[0068] In accordance with a preferred embodiment, said anti-lifting element 75 is vertically
comprised between the anchoring body 70 and the upper head body 72, having a thickness
such as to prevent the lower portion 811 of the lower head pin 81 from falling out.
[0069] According to a preferred embodiment, the hinge device 6 engaged to the sliding panel
4a also comprises an anti-lifting element, which is annular in shape, e.g. coaxial
to the upper pin 61, between the annular element 63 and the upper body 62.
[0070] According to a preferred embodiment, the lower body 52, the upper body 62, the upper
head body 72 and the lower head body 82 have substantially the same characteristics
as those described above. Said components are substantially identical parts, except
for the fact that they are used in different positions and for different purposes,
for example operating on a movable panel and/or head panel.
[0071] According to a preferred embodiment, the movable panels system 1 comprises a box-like
body 9 for at least one edge 42a, 42b of the at least one sliding panel 4a and/or
for at least one edge 43a, 43b of the head panel 4b.
[0072] According to a preferred embodiment, said box-like body 9 is made at least partially
by means of extrusion, for example from a material belonging to the family of metal
materials.
[0073] According to a preferred embodiment, the movable panels system 1 comprises a box-like
body 9 for each edge 42a, 42b, 43a, 43b of each panel 4a, 4b. Said box-like body 9
is integrally connected in translation and rotation to a relevant panel 4a, 4b.
[0074] According to a preferred embodiment, the lower body 52 is integrally connected to
a box-like body 9.
[0075] According to a preferred embodiment, the upper body 62 is integrally connected at
the box-like body 9.
[0076] According to a preferred embodiment, the upper head body 72 is integrally connected
to a box-like body 9.
[0077] According to a preferred embodiment, the lower head body 82 is integrally connected
to a box-like body 9.
[0078] According to a preferred embodiment, the movable panels system 1 comprises at least
one flexible covering member 10, for example two flexible covering members 10, extending
vertically from said box-like body 9.
[0079] Preferably, the flexible covering member 10 extends substantially along the entire
longitudinal length of the box-like body 9.
[0080] In the closing configuration of the movable panels system 1, for example with the
panels in the closed position and longitudinally aligned, the flexible covering member
10 extends at least partially overlapping a relevant rail 2, 3.
[0081] In addition, during the rotation of the panel 4a, 4b, the at least one flexible covering
member 10 elastically deforms in contact with said guide 2, 3.
[0082] Preferably, the flexible covering member 10 at least partially covers the rotation
and sliding means of the sliding panel 4a.
[0083] Preferably, the flexible covering member 10 at least partially covers the rotation
means of the head panel 4b.
[0084] Innovatively, the folding movable panels system fully fulfills the intended object
in overcoming the typical problems of the prior art.
[0085] Advantageously, the movable folding panels system does not structurally bear upon
ceilings and/or beams and/or lintels. Advantageously, the force of weight of the panels
is discharged onto the bottom rail, obviating the problem of installations involving
ceilings and/or beams and/or lintels.
[0086] Advantageously, it is also possible to mount the movable panels system in outdoor
installations that are typically lacking in structural load-bearing capacity.
[0087] Advantageously, the upper rail does not have a panel support function, i.e. it does
not support any weight. Advantageously, the upper guide is structurally simple and
inexpensive to implement.
[0088] Advantageously, it is possible to implement numerous panels of different sizes and
lengths, depending upon the environment wherein they are installed.
[0089] Advantageously, the load generated by the panels homogeneously bears upon the ground
plane and is stabilized during rotation.
[0090] Advantageously, the vertical alignment of the panels is ensured, especially during
rotation.
[0091] Advantageously, the vertical load balancing is ensured. Advantageously, the auxiliary
wheels prevent vertical misalignments and favor homogeneous sliding.
[0092] Advantageously, the movable panels systems has panels that are prevented from undesired
lifting and detaching from the lower guide thereby reducing the risk of injury. Advantageously,
the auxiliary wheels engage to the lower guide in an anti-lifting manner. Advantageously,
the anti-lifting profile of the base body has an anti-lifting function.
[0093] Advantageously, the assembly of the movable panels system is simple, as it comprises
a limited number of components.
[0094] Advantageously, the movable panels system has strong aesthetic qualities. Advantageously,
in fact, the at least one flexible covering member covers a relevant guide, hiding
from view the means of rotation and/or the means of rotation and sliding.
[0095] Advantageously, the problem of the accumulation of dirt and water within the guides
is avoided, presenting a clean aesthetic and obviating the need for frequent maintenance
and cleaning operations.
[0096] It is clear that a person skilled in the art may make changes to the invention described
above in order to meet contingent needs, which changes all fall within the scope of
protection as defined in the following claims.
1. A folding movable panels system (1) comprising:
i) an upper guide (3) and a lower guide (2), wherein the lower guide (2) rests on
a ground plane (P) and comprises at least one rail (20) that extends along a longitudinal
axis (X-X);
ii) a plurality of mutually hinged panels (4a, 4b) comprising at least one sliding
panel (4a), each panel (4a, 4b) comprising an upper edge (43a, 43b) and a lower edge
(42a, 42b);
iii) rotating and sliding means operatively connected to each sliding panel (4a),
comprising:
a) a hinge device (6) engaged at the upper edge (43a), housed in a rotationally and
freely sliding manner at least partially in the upper guide (3);
b) a load-bearing carriage group (5) engaged at the lower edge (42a), comprising:
- a supporting body (50);
- a plurality of wheels (53), each wheel (53) engaged in a slidingly free manner to
the at least one rail (20) and rotationally hinged to the supporting body (50) in
a wheel axis (W-W) substantially parallel to the ground plane (P) ;
- a lower pin (51) that extends along a substantially vertical first rotation axis
(R1-R1), engaged to the supporting body (50);
- a lower body (52) engaged to the sliding panel (4a) and engaged in a rotationally
free manner to the supporting body (50) by means of the lower pin (51);
- a thrust bearing (55), engaged to the lower pin (51) and engaged to the supporting
body (50) or the lower body (52), suitable for allowing the rotation of the lower
body (52).
2. Folding movable panels system (1) according to claim 1, wherein the supporting body
(50) comprises a housing (500), in which the thrust bearing (55) and a portion of
the lower pin (51) engaged to the thrust bearing (55) are housed.
3. Folding movable panels system (1) according to any one of the preceding claims, wherein
the lower guide (2) comprises:
- a pair of auxiliary partitions (27) that extend along the longitudinal axis (X-X);
- an auxiliary housing (270) comprised transversely between the auxiliary partitions
(27);
wherein the load-supporting carriage group (5) comprises at least one auxiliary wheel
(54) engaged in a sliding manner to the auxiliary partitions (27) in the auxiliary
housing (270) and hinged to the supporting body (50) in a vertical auxiliary axis
(Q-Q).
4. Folding movable panels system (1) according to any one of the preceding claims, wherein
the upper guide (3) comprises a sliding seat (30) wherein the hinge device (6) comprises:
- an upper body (62) integrally connected to the sliding panel (4a);
- an upper pin (61) that extends along the first rotation axis (R1-R1), integrally
connected to the upper body (62);
- an annular element (63) supported in a rotationally free manner by the upper pin
(61) and engaged in a sliding manner to the upper guide (3) in the sliding seat (30).
5. Folding movable panels system (1) according to any one of the preceding claims, wherein
the plurality of panels (4a, 4b) comprises a head panel (4b), wherein the movable
panel system (1) comprises rotational means operatively connected to the head panel
(4b) comprising:
c) a head hinge device (7) engaged at the upper edge (43b), suitable for allowing
the rotation of the head panel (4b) relative to the upper guide (3);
d) a head bearing group (8) engaged at the lower edge (42b), comprising:
- a base body (80) engaged to the lower guide (2) at a fixed position along the longitudinal
axis (X-X);
- a lower head pin (81) that extends along a substantially vertical second rotation
axis (R2-R2), engaged to the base body (80);
- a lower head body (82) engaged to the head panel (4b) and engaged in a rotationally
free manner to the base body (80) by means of the lower head pin (81);
- a head thrust bearing (85), engaged to the lower head pin (81) and engaged to the
base body (80) or the lower head body (82), suitable for allowing the rotation of
the lower head body (82).
6. Folding movable panels system (1) according to claim 5, wherein the base body (80)
comprises a base housing (800) in which a head thrust bearing (85) and a portion of
the lower head pin (81) engaged to the head thrust bearing (85) are housed.
7. Folding movable panels system (1) according to claim 5 or 6 in combination with claim
3, wherein the base body (80) comprises a lower base portion (806) and an anti-lifting
profile (808) in said lower base portion (806), having complementary shape to the
auxiliary housing (270), in which it is housed.
8. Folding movable panels system (1) according to claim 7, wherein the base body (80)
comprises at least one backing profile (809) housed in the lower base portion (806)
positioned vertically abutting against a respective rail (20) .
9. Folding movable panels system (1) according to any one of the claims from 5 to 8,
wherein the head hinge device (7) comprises:
- an anchoring body (70) engaged to the upper guide (3) in a fixed position along
the longitudinal axis (X-X);
- an upper head pin (71) that extends along the second rotation axis (R2-R2), engaged
to the anchoring body (70);
- an upper head body (72), integrally connected to the head panel (4b) and engaged
in a rotationally free manner to the anchoring body (70) by means of the upper head
pin (71).
10. Folding movable panels system (1) according to claim 9, wherein the head hinge device
(7) comprises an anti-lifting element (75) coaxial to the upper head pin (71), suitable
for preventing the lower head pin (81) from slipping off from the base housing (800).
11. Folding movable panels system (1) according to any one of the claims 9 or 10, wherein
the lower body (52), the upper body (62), the upper head body (72) and the lower head
body (82) have substantially the same features being substantially identical.
12. Folding movable panels system (1) according to any one of the preceding claims, comprising:
- a box-like body (9), engaged to at least one edge (42a, 42b, 43a, 43b) of at least
one panel (4a, 4b);
- at least one, preferably two, flexible covering members (10) which extend vertically
from said box-like body (9);
wherein with panels (4a, 4b) longitudinally aligned, the at least one flexible covering
member (10) extends at least partially overlapping a respective guide (2, 3), wherein,
upon the rotation of the panel (4a, 4b), said at least one flexible covering member
(10) elastically deforms in contact with said guide (2, 3).
13. Folding movable panels system (1) according to any one of the preceding claims, comprising
a plurality of sliding panels (4a) mutually hinged and sliding along the longitudinal
axis (X-X).