FR2636831A1 - Device for automatically cleaning glass panes - Google Patents

Abstract

Device for automatically cleaning, on the inside or the outside, or, alternatively, on both sides at once, glass panes, windows, doors as well as any glazed surface of new or old construction, of the type including means for supplying washing product to the spraying nozzle and one or more cleaning sweepers displaced in a to-and-fro movement by an electromagnetic force originating at the level of means arranged at each end of the sweepers, the said means interacting with guiding columns 3, characterised in that the electromagnetic means for displacing the sweeper or sweepers consist, on the one hand, at the level of the sweepers, of movable objects 4 made from a material which conducts electricity, which are connected to electrical supply means, and, on the other hand, at the level of the frame, of longitudinal permanent magnets arranged on either side of each movable object 4.

Description

 The invention relates to an automatic cleaning device, internal or external, or both, windows, windows, doors and any glazed surface of new or old construction.

 The invention applies to any window of individual houses, buildings, offices, shop windows, public places (airports, railway stations, etc.) as well as to all buildings having glass windows, windows or signs and signposts. .

 Up to now, glass cleaning has been done year by year, either by the housewife or by window washers. This work, in addition to the loss of time, is dangerous when cleaning the outside of the glass.

 Two other patents N # 2,438,458 (A1) 7830125 and -2,450,590 (Ai> 790 6047 of 1980 exist on this subject, but the displacement of the brushes is carried out in a way that can not be exploited industrially (noise, complexity of the movements in the presence ....).

 Another patent N DE-h-3 235 227 has been filed concerning the same field but it applies only to large buildings glazed because of its principle using as a means of displacement pneumatic pressure or the need a compressor; moreover, the system is not integrated in the frame of the windows.

 A previous patent N 86-15387 filed by the signatory of the present application indicates that the movement back and forth of the brush or brooms is obtained by an electromagnetic force acting on coils placed at each end of the blade.

 It turns out, in the current state of technology, that said coils, to be able to exert sufficient forces, are of a size difficult to place inside the profile of the window frame.

 The present invention mitigates this disadvantage by using for the movement of the brush or brooms in a back and forth movement, an electromagnetic force originating at the means disposed at each end of the brushes, said means cooperating with guide columns, soat consisting, on the one hand at the level of the brushes, of mobiles made of electrically conductive material connected to electrical supply means, and secondly, at the level of the frame, of longitudinal permanent magnets deposited on each side other of each mobile (LAPLACE law>.

 According to a particular embodiment, on each mobile are placed two rubbing coals on two fixed electrical son secured to the frame.

In order to ensure the parallel movement of the blade, each of its ends must be controlled in its displacement value.

 An intermediate insulating part makes it possible to fix the support of each end of the broom on each mobile. Two outer ring balls of electrically insulating material ensure both the support of the mobile and the support and the guidance on two guide shafts. Horn on previous patent, the reversal of the nouveinent is ensured by the contactors placed on stops of end of race.

 All the means for guiding and moving the brushes on the one hand and the means for supplying cooling liquid on the other hand, are arranged in a profiled hollow frame, supporting the glass, and the transfer of the liquid. watering is carried out directenent by tubular parts of the profile.

As an illustration, drawings are attached which represent,
FIGURE 1 A half-front view of a window representing more particular
the motor device.

FIGURE 2 A partial view of the BB section particularly representing the
conductive wire and the variable resistor.

FIGURE 3 A partial view of the AA cross-section representing more
especially the arrangement of the set - Aiuants-Xc> biles-.

FIGURE 4 A simplified partial view in perspective representing more by
particularly the situation of the three necessary elements, namely
- magnetic field B
- current I
- force F
In reference to these drawings, the driving element of the device consists of a nobile (4) conducting electricity at each end of the brush, traversed by a direct current t of the order of 250 A. This element (4 > is in a magnetic field created by two longitudinal magnets <3?) and t38) longitudinal. When the current traverses the element <4> in one direction, an electro-magnetic force F is exerted on it in one direction. When the current is reversed thanks to the contacts (13), the force F is exerted in the other meaning <LAPLACE law).

 In order to ensure a force F of the order of 2 to 6 kg per end, depending on the size of the windows, the width of the magnetic field created by the magnets may be of the order of 50 n and the power of the permanent magnets between 2 and 6 Weber / X2.

 The thickness of each element "EORD-SOUTH" of the magnet is of the order of 5 mm. In order to obtain such a small thickness, one method would be to bond magnets 3 mm thick between two sheets 1 mm thick each. The magnetic field is thus given to the sheets which insert the permanent magnets.

 The permanent contact is provided by two coals (35) held in pressure by two springs (36) on electrical son (31) and <34> and (34) glued on the inside of the amount of the window.

 A contact (30), integral with each end of the blade, rubs on a resistor (39) variable according to the position of the blade. At all times, an electronic device measures the value of each resistor and ensures balance.

 The ball bushings (28) whose outer ring is made of electrically insulating material, ensure both the holding of each mobile and of each brush holder (27>, separated from each other by a piece (29) of material electrically insulating and guiding on two guide shafts (3).

 The cooling liquid is conveyed by tubular portions of the profile.

Claims (6)

#EVEJDICATIOJS 1) Automatic cleaning device, internal or external, or both  at the same time, windows, windows, doors as well as any glass surface of  new or old construction of the type comprising alinate nuts  washing agent and one or more brooms  cleaning moved by a movement back and forth by force  electromagnetism originating at the level of means disposed at each  end of the brooms; the said means cooperating with mistletoe columns  characterized in that the electro-magnetic displacement means  or brooms are formed, on the one hand at the brooms, no  biles of electrically conductive material connected to aluminum cores  electrical supply and secondly, at the frame level, permanent magnets  longitudinal nents disposed on either side of each mobile. 2) Device according to claim 1 characterized in that the current elec  is conveyed by coals (35) attached to the mobiles, now  naked under pressure by springs (36) on fixed electric wires (31)  and 34) integral with the frame. 3) Device according to claims 1 and 2 characterized in that the die  parallel placement of the broom is ensured thanks to the presence, each ex  trematé, a contact (30) rubbing on a resistance (39) variable according  the position of the broom connected to an electronic device that provides  moment the balance between the values of each resistance at each end  Broom unit. 4) Device according to any one of the preceding claims carac  characterized in that an insulating piece (29) intermediate makes it possible to fix the  support (27) of each end of the blade on each mobile (4).  5) Device according to any one of the preceding claims carac  in that, at each end, two bushings (28) ring  external insulating material of electricity ensure both the  maintaining the nobile (4) and the support (5) and guiding on two shafts of  guiding (3). 6) Device according to any one of the preceding claims carac  characterized in that the means for guiding and moving the brushes of a  on the other hand, and the means for supplying the cooling liquid on the other hand,  are arranged in a profiled hollow frame, supporting the window itself,  and in that the transfer of the cooling liquid is carried out directly  by tubular parts of said profile.