FR2607450A1 - METHOD OF ATTACHING WINDSHIELDS AND WINDOWS BY SUCTION OR SUCTION POT - Google Patents

Abstract

An optical window made according to the method of the invention is essentially characterized by the fact that it comprises a cutting (14) made in a support (15), means for making at least one chamber (12) comprising an opening (17) provided on a reference surface (21), controllable means (23) to obtain a fluid circulation in the chamber, and an optical plate (10) having at least one face of which at least one portion of the surface is conformed to the reference surface, the plate being designed to be positioned on the edges (20) of the chamber opening in order to form with the chamber a sealed housing (22), the value of the pressure prevailing inside the housing being lower than the value of the atmospheric pressure. Application particularly to the making of windshields, windows, glazed panels, etc., for transport vehicles, facades of modern buildings, etc..

Description

APPLICATION DOMAIN
1 - AUTOMOTIVE INDUSTRY AND RAILWAY
for fixing windshield, rear window and
fixed side windows.

2 - AERONAUTICAL INDUSTRY
fixing of windows, portholes and panels
3 - BUILDING CONSTRUCTION
fixing of the panes to the windows and of the panels in
glass exteriors of modern buildings.

MAIN BENEFITS
TIME for fitting windshields, rear glasses and windows
fixed lateral, greatly reduced compared to
installation of current methods using the bead
rubber or glues.

TOTAL ELIMINATION of the drag, due to the bead of
rubber which is currently used for the installation of
windshields and windows in the vehicle industry in general
(cars and trains) as well as in the aeronautical industry.

The proposed method will keep the same Cx, at the level
windshield and windows, that calculated on the model
in the wind tunnel.

THEFT. This method will prevent theft by removing the
windshield or rear window which is currently possible
even for vehicles with anti-theft systems. I1 is
impossible to remove the windshield or windows without having access
inside the vehicle through normal access routes.

ALLOWS new approaches in shape studies or
aerodynamic research of automobile bodywork,
high speed trains, aeronautics etc ...

ALLOWS complete automation / robotization of poses
windshields, fixed windows and window panels.

 INSTALLATION AND REMOVAL of windows and bumper fast and easy.

DESCRIPTION OF THE PROCESS
The invention will now be described with reference to
an embodiment given by way of example and represented
Figures 1 and 2
FIG. 1 is an exploded perspective view,
Figure 2 is a sectional view summarizing line II.II of the
figure 1.

The windshield assembly includes a frame 1 with cavities 2
connected to a valve 3. On this frame 1 is mounted a seal 4
with holes 5 corresponding to the cavities. The windshield 6 is
placed on the joint 4.

A vacuum is created in the cavities 2, which causes the holding
of the windshield.

I1 may have provided a contact 7 inserted on a circuit
alarm to signal any decrease in the
depression under the cavities of the frame.

The assembly and fixing of the window and panel windshield
windows will be made by suction or emptying of the air contained in the or
the cavities of the frame using the valves which will be placed on the
frame and the inside of the vehicle. The vacuum created in the
cavities will firmly hold the glass or windshield.

A rubber seal placed between the frame and the glass will ensure
tightness of the system, and will insulate the glass from the frame as well
that it will absorb the vibrations created when the vehicle is moving.

The concept of having multiple cavities in the frame will ensure
more safety in the event of an accidental loss of sealing
in one of the cavities, the suction effect of the other cavities retains
will firmly glass or windshield until repaired
required.

The loss of tightness or vacuum in the cavity (ies) can be due to two major factors
A - attempted theft or burglary of the vehicle
by removing or breaking the windshield or one of the
windows.

B - defective valves or loss of flexibility /
elasticity of the joint.

Vacuum contacts, incorporated into the valves or separately mounted on the frame, will be connected to an alarm system which will be activated in the event of loss of vacuum. A second mechanical method will consist in providing these contacts with indicator lights which will turn red when the vacuum in the cavities is not sufficient to create the suction cup effect.

For the preparation of competition cars as well as for the fitting of windows in aviation, the bonding technique is currently used. This procedure is very expensive, takes a long time.

It is also very risky in motor racing because, in the event of an accident, the driver or driver sometimes has only the resource to break the windshield or one of the car windows to get out. With the proposed method, the valves can be equipped with an emergency system which will open the valves in a few seconds to leave leakage passages.

In building construction, the same principle described above can be used, with less sophistication, for the installation / fixing of windows to window frames as well as for the installation of window panels which constitute the exterior facades of modern buildings.

Claims (2)

 1) Mounting of a glazed wall on a support such as a windshield characterized in that it comprises a frame 1 with the cavities 2, an elastic seal 4 and the windshield 6, the cavities include valves 3 allowing to carry out the vacuum.  2) Mounting a glass wall on a support according to claim 1 characterized in that the cavities comprise at least one electrical contact 7 accessible to a modification of the depression and connected to an alarm circuit.