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Title:
MOBILE SUNSHADE SYSTEM FOR CONTINUOUS MIRROR FAÇADE
Document Type and Number:
WIPO Patent Application WO/2010/122593
Kind Code:
A1
Abstract:
Hide-away mobile sunshade screen inserted in an openable blind leaf of a continuous mirror façade, overlying a transparent glazed pane. When the blind leaf opens outwards, the sunshade panel, contained inside it, slides vertically, setting itself on top of the underlying transparent glazed pane, thus functioning as sunshield. In the resting position, (in the absence of sun) the sunshade panel remains within the leaf, which is closed and coplanar with the remaining continuous mirror façade.

Inventors:
LILLI, Doriano (Vocabolo San Sabino, n. 13, Giano dell'Umbria PG, I-06030, IT)
Application Number:
IT2010/000173
Publication Date:
October 28, 2010
Filing Date:
April 21, 2010
Export Citation:
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Assignee:
LILLI SYSTEMS S.R.L. (Vocabolo San Sabino, n. 13, Giano dell'Umbria, I-06030, IT)
LILLI, Doriano (Vocabolo San Sabino, n. 13, Giano dell'Umbria PG, I-06030, IT)
International Classes:
E04F10/10
Foreign References:
DE1264733B1968-03-28
EP1467157A12004-10-13
DE2953533A11981-05-14
Other References:
None
Attorney, Agent or Firm:
SARPI, Maurizio (Studio Ferrario, Via Collina 36, Rome, I-00187, IT)
Download PDF:
Claims:
CLAIMS

1. An openable leaf (As) for panes of continuous mirror faςades, characterized in that it is installed on top of a transparent fixed or mobile glazed pane and in that it contains a mobile sunshade screen (S) of a hide-away type, equipped with appropriate movement means designed for bringing said sunshade screen into a position where it shades the underlying pane; said openable leaf and said panes of continuous mirror faςade being installed on the outside of the faςade of a building.

2. The openable leaf (As) according to the preceding claim, characterized in that, when the leaf

(As) is in the open position, the screen (S) slides vertically on ball-slide guides (G) , setting itself on top of the underlying transparent glazed pane (Vt) and functioning as sunshield.

3. The openable leaf (As) according to Claim 1 or Claim 2, characterized in that, in the resting position it is concealed, i.e., coplanar with respect to all the other panes of the faςade and not distinguishable externally therefrom.

4. The openable leaf (As) according to Claim 1, characterized in that it is blind and its frame is constituted by sectional elements made of aluminium or other material, of which the two vertical sides and the top transom are made up of a single sectional element

(Al) , and the bottom transom is made up of two sectional elements spaced apart from one another (A2)-

(A3) .

5. The openable leaf (As) according to Claim 1, characterized in that it is connected to mullions (M) of the load-bearing structure of the faςade via hinges

(C) that enable opening in a projecting or pantographic fashion, or some other type of opening.

6. The openable leaf (As) according to Claim 1, characterized in that in faςades of the mullion or transom type, with external covers in view, its mobile frame, made up of the aluminium sectional elements (Al) - (A2) , abuts on a fixed frame (U) , made of an extruded sectional element of plastic material (or other material) in order to produce a thermal break.

7. The openable leaf (As) according to the preceding claim, characterized in that the aluminium sectional elements (Al, A2) and the rabbet sectional element (U) have seats for insertion of weatherstrips (Pl), (P2) .

8. The openable leaf (As) according to Claim 1, characterized in that it is hinged to the load-bearing structure of the faςade, and can open with automatic or manual command.

9. The openable leaf (As) according to Claim 1, characterized in that it can open in a projecting or to pantographic fashion, or in some other way. 10. The openable leaf (As) according to Claim 5, characterized in that it can be hinged in the bottom transom, and can open at a variable angle, with respect to the vertical, by turning on the bottom hinge.

11. The openable leaf (As) according to Claim 1, characterized in that both the self-concealed leaf (As) and the screen (S) function as sunshades.

12. The openable leaf (As) according to any one of the preceding claims, characterized in that it can be applied both on faςades of the structural type and on suspended-glazing faςades, without the aid of the perimetral sectional element made of plastic material (U) .

13. The openable leaf (As) according to Claim 1, characterized in that the panel (Vcs) for pannelling the mobile leaf (As) is made of glass, aluminium, or some other material .

14. The openable leaf (As) according to Claim 1, characterized in that the screen (S) can be of the Persian-blind type, or some other type of panel of any material, suitable for producing a sunshield. 15. The openable leaf (As) according to Claim 1, characterized in that electric motors (Ml, M2) are provided, which can be operated with individual manual pushbuttons, or ones connected to a centralized wiring system, controlled by a sun-wind detection instrument, or other type of sensor, which detects the weather conditions .

16. The openable leaf (As) according to the preceding claim, characterized in that the electric motors (Ml, M2) are of the chain or piston or rack or pneumatic type.

17. The openable leaf (As) according to Claim 15, characterized in that an electrical wiring system is provided, equipped with safety devices for preventing simultaneity of operation of the motors (Ml, M2) .

Description:
"MOBILE SUNSHADE SYSTEM FOR CONTINUOUS MIRROR FAςADE"

*****

The present industrial invention relates to the building sector, in particular to continuous glazed faςades. In building, there is a very widespread use of continuous glazed faςades, for which it is problematical to apply external shielding systems for blocking solar radiation, as envisaged by current standards .

Sunshields, which are currently mounted on the outside of continuous mirror faςades, are visible and profoundly alter the architectural appearance and do not meet the favour of designers.

The main purpose of the present industrial invention is to provide an external shielding system (as required by standards currently in force) , which functions as sunshade only when the sun is present, and in other weather conditions is in the resting position, not visible from outside so as to restore the aesthetic and architectural continuity of the continuous mirror faςade . The above has been obtained, according to the invention, by inserting a sunshade panel (of the Persian-blind type or of some other type) within a fixed glazed unit of the continuous mirror faςade, envisaging the possibility of using said sunshade panel, only when required, causing it to exit from its own resting position.

Figures 1 and 2 represent perspective views and sections of a typical continuous mirror faςade, in which there are panes of transparent glass (double glazing) , Vt, and blind panes made of glass or some other material, Vci, Vcs, constituted by an enamelled and tempered glass glued on a sandwich panel. Normally, the panes of glass, whether transparent Vt or blind Vci or Vcs, constitute a horizontal band. The transparent panes Vt can be either fixed or openable (normally they are leaves that open in a projecting fashion) .

Both the panes Vt, and the panels Vci and Vcs are supported by metal frames (made of aluminium or some other material) fixed to a metal framing of a known type, mullions M and transoms T.

Figure 1 shows the leaf As in the resting position. Figure 2 shows the leaf As in the open position with the sunshade screen S positioned so to protect the glazed pane Vt.

Figure 3 shows a typical horizontal section, with the insertion of the leaf As, in a faςade with external covers in view. Figure 4 shows a typical vertical section, once again with insertion of the leaf As in a faςade with external covers in view.

Figure 5 shows a typical vertical section with the insertion of the leaf As in a structural faςade.

In the present industrial invention the panel set on top of the transparent glass Vt is replaced by a leaf As that opens in a projecting fashion, which is externally panelled with a blind panel Vcs, made of glass or some other material, and contains inside it a sunshade screen S (of the Persian-blind type or of some other type) . The leaf As that opens in a projecting fashion is constrained to the mullion M of the lattice of the faςade via the hinges with arms C, with the aid of the screws Vl and V2 (Figure 3) .

The sunshade screen S is constrained to the leaf As that opens in a projecting fashion, via two ball- slide guides G. Said guides enable the sunshade panel S to slide out with respect to the leaf As that opens in a projecting fashion. The leaf As that opens in a projecting fashion is connected to the electric motor of the chain type (or of some other type) Ml, which is in turn constrained to the transoms T. The sunshade panel S is connected to the electric motor of the rack type (or of some other type) M2, which is in turn constrained to the leaf As that opens in a projecting fashion. The rack K is as long as the screen S.

According to a peculiar characteristic of the invention, starting from the position of leaf As closed (Figure 1) , if the motor Ml is operated via an electrical pushbutton, the leaf As, by pivoting on the hinges C, opens so as to project outwards.

When the motor Ml has reached the end-of-travel position, it stops and keeps the leaf As in the open position. If at this point, via an electrical pushbutton, the rack motor M2 is operated, the sunshade panel S, supported by the guides G, slides out, setting itself on top of the underlying transparent glazed pane Vt and blocking solar radiation. Said operation is performed only on sunny days, when the solar radiation causes overheating of the premises.

According to a peculiar characteristic of the invention, in the event of lack of sunlight, the leaf As is in the resting position, and in this condition the architecture of the continuous mirror faςade is restored, in so far as the glass (or panel) Vcs is of the self-concealed type; i.e., it cannot be recognized from outside with respect to other fixed glazed surfaces or panels. The ensemble of the openable leaf As and of the motors Ml and M2 is contained in the compartment delimited by the mullions M and the transoms T.

The load-bearing frame of the self-concealed leaf As, as regards the two vertical sides and the top transom, is made of an extruded aluminium sectional element Al, whilst the bottom transom (Figure 4) is made of two extruded aluminium sectional elements A2 , A3.

The two aluminium sectional elements A2 , A3 that constitute the bottom transom are spaced apart from one another in so far as they must enable passage of the sunshield S .

Connected to the sectional element A3 by means of a bracket is the motor Ml, which enables opening in a projecting fashion of the leaf As. Connected to the same sectional element A3 is the motor M2 , which, by acting on the rack K, enables the sunshield S to slide out .

The extruded sectional elements Al and A2 have a seat, inserted in which is the weatherstrip Pl.

Said weatherstrip Pl abuts on the perimetral sectional element U, made of rigid plastic material, which in turn has a seat, inserted in which is the weatherstrip P2 that abuts on the extruded sectional elements Al, A2.

In this way, when the leaf As is in the closing position, there is a double seal in regard to air and water of the leaf As, via the two weatherstrips Pl, P2.

The perimetral sectional element U, made of rigid plastic material, is fixed by means of screws to the mullions M and to the transoms T. Given that said sectional element U is made of plastic material, it creates a thermal break between the leaf As that opens in a projecting fashion and the load-bearing structure of the continuous mirror faςade, mullions M and transoms T.

The panel Vcs, made of enamelled and tempered glass, or some other material, is fixed to the extruded sectional element Al and A2 by means of structural silicone. The above description illustrates application of the hide-away sunshield in a continuous mirror faςade of the mullion-and-transom type with covers in view on the outside, but the present industrial invention applies without any problems to continuous mirror faςades of the structural type, i.e., without aluminium sectional elements in view on the outside.

Figure 5 represents a horizontal section of said type of application in a continuous mirror structural faςade, with the use of the same extruded aluminium sectional elements Al, A2 , A3.

In this case, the extruded sectional element made of rigid plastic material U is absent.

When the leaf As that opens in a projecting fashion is opened, the screen S assumes the function of sunshade, setting itself on top of the glazed pane Vt (see Figure 2) . The hermetic tightness of the compartment in which the leaf As is contained is ensured by a sandwich panel, W, perfectly sealed up against the mullions M and transoms T. According to a peculiar characteristic of the present industrial invention, for each transparent glazed pane Vt of a continuous mirror faςade an overlying hide-away mobile sunshade screen S is inserted, controlled by electric motors Ml, M2. Said motors may be operated manually via electric pushbuttons, or preferably by a sun-wind control unit, which detects either the external solar radiation or the wind speed and operates simultaneously all the sunshields of a faςade. The electric wiring of the system is provided with safety systems so as to guarantee that the motor M2 enters into action only when the motor Ml is in the end-of-travel opening position, and the motor Ml enters into action only when the motor M2 is in the end-of- travel closing position.

Finally, it should be noted that, even though sunshade systems equipped with extensible shields mounted on leaves that open out in a projecting fashion are known, one of the disadvantages of said known systems lies in the fact that they must be installed in the thickness of the faςade of the building, even replacing parts of the faςade itself.

Current standards impose that, for application to continuous mirror faςades, both mullions-and-transom ones and structural ones, the mobile shielding systems must be mounted and installed on the outside of the faςades theiηselves.

As has just been mentioned above, said known sunshade systems cannot be used for said applications in so far they necessarily envisage replacement of the parts of the faςade and occupation of the thickness thereof .

According to a peculiar characteristic of the present invention, the entire continuous mirror faςade, comprising the fixed panes and the panes that open in a projecting fashion, is installed outside the faςade of the building.

Advantageously, according to the invention, the leaf As that opens in a projecting fashion which contains the sunshade screen S is altogether similar to a normal leaf that opens in a projecting fashion with transparent glass 4 or else the same as a blind pane 6 or transparent pane 7 of the continuous mirror faςade.

As may be noted from the horizontal cross section 1 of the faςade shown in Figure 3, the leaf As that opens in a projecting fashion, which contains the sunshade screen S, viewed from outside is identical to the leaf that opens in a projecting fashion with transparent glass shown in Section 4, or else the same as a blind pane 6 or transparent pane 7. What has been said now applies in an altogether similar way to a structural-sealant-glazing faςade, as is illustrated clearly in Figure 5.

Section 3 shows a leaf As that opens in a projecting fashion which contains a sunshade screen S, constrained to the sectional element Al.

It may be noted that the same sectional element Al supports the structural glass, without containing the sunshade screen S .

From outside, the pane 3, which contains the hideaway screen S, looks the same as the pane 9 and the panes 10, which are transparent.

It should also be noted that in the case of continuous mirror faςades (Figure 3, Sect. 1) a sectional element U made of thermally insulating plastic material is provided, which is inserted instead of the glass and fixed on which is the arm C for opening outwards, which supports the sectional element Al on which the hide-away screen S is fixed via the telescopic guides G with ball bearings.

The same may be said as regards a structural- sealant-glazing continuous faςade, shown in Sect. 3 of Figure 5. In fact, the sectional element Al that supports the sunshade screen S via the guides G, is the same as that of the faςade with structural blind glass 9, or transparent glass of the pane 10. The present industrial invention has been described and illustrated in a preferred embodiment thereof, but it is clear that technically and/or functionally equivalent modifications and/or replacements may be made by any person skilled in the branch, without thereby departing from the field of protection of the present industrial patent right.