EP3276115A1 - Device for supplying power to the leaf of a sliding door - Google Patents

Abstract

Device for supplying a door leaf (2) movable with an automatic door driven by a control mechanism secured to the frame, said leaf being supported by at least one carriage (6a, 6b), which rolls along an main rail (5) rolling when moving between the open and closed positions, characterized in that said feeder comprises: - an insulated and spiraled electrical cable (7) electrically connected between a low-voltage transformer power source (12) fixed to the chassis, and a voltage controller (17) integral with the movable leaf (2), - a guide rail (9) for sliding supports (8a, 8b, 8c, 8d) introduced between the isolated turns of the cable (7) at regular intervals to maintain the cable (7) without bending during its deployment, said guide rail (9) being fixed on the main rail (5) rolling.

Description

Technical field of the invention

The invention relates to a device for powering a mobile door leaf of an automatic door driven by a control mechanism integral with the frame, said leaf being supported by at least one carriage, which rolls along a rail main bearing when moving between the open and closed positions.

It relates in particular to the supply of a device for partially lighting the faces of the leaves by providing light through the edge of the glass leaves. The light is generated by strips of LEDs on each side on the edge of the leaf allowing the interior lighting of a glazing in order to diffuse a poster or a message by means of a specific white tinted adhesive glued directly on the glazing, or by a system of studs and backlight thanks to the technique of back light. Means make it possible to feed the LED strips in order to illuminate the glazing during the moving of the mobile leaves of the automatic door.

State of the art

The lighting devices of a glazing unit with LED strips arranged on the edge of the glazing are known from the document WO2010029658 to Nichia . Variants still describe the contribution of light by backlighting such as the document KR2004085771 from ST GOBAIN or in colored lights according to the document WO2010124951 of ST GOBAIN . Many applications come from this, for example in the automobile for sunroof lighting according to the documents FR2986854 & FR 2978524 (St Gobain ), or refrigerator doors (Patent FR 2978525 of St Gobain ).

• L'éclairage d'un film diffusant blanc imprimé du message à afficher, laminé directement sur la face arrière d'un vitrage simple face. C'est la technique la plus simple, dont les limites sont la surface à éclairer, et la surface du vitrage.
• L'éclairage par diffusion d'une lumière dans l'espace intérieur d'un double vitrage, dont le chant d'accès à la lumiere est poli, et nécessitant une couche d'air entre les deux : on imprime par jet d'encre blanche des points diffusants sur le vitrage arrière, précisément disposés en fonction de la distance entre la source de lumière et les points diffusants (ou plots), formant une zone d'affichage. Puis on colle une photo ou on imprime un message sur le vitrage avant et sur la même zone d'affichage que celle des plots arrière et ainsi, la source de lumière, par rétro éclairage, vient éclairer la photo ou le message imprimé. Cette deuxième technologie, certes plus coûteuse, permet d'améliorer la qualité de l'éclairage, et la surface d'éclairement, ainsi que l'éclairage en quadrichromie.

Two lighting technologies of a glazing with LED strips arranged on the edge of the glazing, are elaborated:

• The lighting of a white diffusing film printed with the message to be displayed, laminated directly on the rear face of a single-sided glazing. This is the simplest technique, whose limits are the surface to be illuminated, and the surface of the glazing.
• The lighting by diffusion of a light in the interior space of a double glazing, whose edge of access to the light is polished, and requiring a layer of air between them: one prints by jet of ink white diffusing points on the rear glazing, precisely arranged according to the distance between the light source and the scattering points (or pads), forming a display area. Then we glue a photo or print a message on the front glazing and on the same display area as that of the rear studs and thus, the light source, by backlighting, illuminates the photo or printed message. This second technology, certainly more expensive, allows to improve the quality of the lighting, and the surface of illumination, as well as the illumination in four-color process.

The patented solutions concerning these two technologies solve the various problems posed, such as the management by electronic card of the operation of LEDs, the light, the coloring, the diffusion of this one in the direction of a diffusion film dyed in the mass and adhesive directly on the back of the glazing, the various designs of the support and wedging of the LED strips to optimize the dispersion of the calories generated, the sealing or the simplification of the mounting of the led strips.

However, all the known applications concern the lighting of a fixed glazing, or having a low amplitude movement and slow movement like the sunroof of a vehicle, or the door of a refrigerator. In addition, the requirement of operating cycles does not exceed a few thousand opening / closing. These applications also can not concern wide-width windows, because the loss of luminosity must be compensated by an increase in the power of the LEDs, generally incompatible with these applications, for reasons of cost, space requirement, power consumption. excessive (sunroof), cooling impossible to implement or incompatible with the environment (refrigerator).

Object of the invention

The object of the present invention is to propose the colored illumination of images printed on a diffusing film carried on the window pane. A backlighting by studs diffusing the light guided in the window light illuminates a poster or a photo posted on the glazing of an automatic door during its movement. The door then serves as a communication and signage support for a store, a sign, a company or any other legal or commercial entity.

Another particularity of this invention is to propose different media: image lighting, text logos on the leaf. The use of color or flashing to attract attention (green pharmacy logo), this by automatic variations in the intensity of the LEDs according to the ambient or external lighting or flow of people detected by the radar door, etc ...

The glazing selected for these applications will be extra-clear tempered or laminated glass (type 44/2) and the adhesive-coated film on the rear face of the glazing will be of the ultra clear transparent V type, the white or pixelated print ink.

• La première difficulté est l'alimentation des Leds.

The present invention poses multiple unsolved problems to date, which explains why this application is still unknown on the market:

• The first difficulty is the power supply of LEDs.

If the mounting of 18 or 20 white leds strips on the side edge of the glazing is known, it must bring him a source of energy and control during its movement, which is much faster than a car sunroof and a race up to 2 meters wide or more. The service life in opening and closing cycles must be of the order of a million maneuvers. The rapid movement of the leaves of an automatic door, the accelerations / braking and the very high frequency of opening / closing pose a major difficulty for the reliable supply of the drive motor of the mobile leaf, by means of a electric cable to be connected to the frame of the door. The solution tested according to the invention therefore consists in the choice of a two or three-conductor power supply cable, which is spiraled and sheathed with a polyurethane coating or equivalent that is suitable for a large-amplitude spring effect.

• La seconde difficulté est que l'espace entre la partie supérieure du vantail est limité et déjà occupé par le chariot de roulement du vantail, et la courroie d'entrainement. Par exemple, l'espace disponible en largeur / hauteur pour les portes d'intérieur posées « en galandage », c'est-à-dire entre deux cloisons minces, n'est que de 70 x 70 mm. Il ne peut être question de laisser un câble électrique, même spiralé, se déplacer sans risque et de se coincer dans le mécanisme de guidage et d'entrainement de la porte. Ce problème est résolu par le dispositif décrit plus haut, qui est très compact et dont l'amplitude est contrôlée dans les trois directions longitudinale, latérale et verticale dans l'espace disponible.
• La troisième difficulté est que la surface des vantaux et de sa signalétique embarquée, peut être très importante, plusieurs M², ce qui nécessite en l'état de la technique des Leds puissantes et en nombre, afin de garantir une homogénéité de l'éclairage. La conséquence est que la puissance installée peut devenir rédhibitoire en termes de consommation électrique et le dégagement de chaleur incompatible avec l'environnement d'une porte automatique. Ce problème sera partiellement résolu grâce à des supports lumineux « plein de masse blanc » pixélisé, la lumière n'accrochant que les pixels, permettant d'optimiser la puissance installée et l'homogénéité de l'éclairage. Ces pixels seront avantageusement constitués de petits motifs diffusant, et de plus gros motifs ensuite. Pour les logos de grande surface, on utilisera une encre blanche pixélisée ou à gradient contrôlée transparent sur film adhésif transparent. L'ensemble de ces dispositions permet de répondre totalement à cette difficulté.

These sheathed / spiral cables have been developed for industrial applications, but are offered without support or guidance accessories. This type of cable although small in size, however, has an arrow too important to be contained and guided properly in the restricted space of the carriage of an automatic door. The cable is suspended from a small rail integral with the main running rail of the door, and in which move simple and original sliding supports developed to carry and guide the cable slipping in the rail. The carriages will be spaced apart to ensure the almost spiral-free holding of the spiral cable. The principle of this mechanism offers the advantage of supporting without fail hundreds of thousands of maneuvers and round trips. It is very responsive to acceleration / braking thanks to the spring effect of the sheathed cable, it is also completely silent, and very economical.

• The second difficulty is that the space between the upper part of the leaf is limited and already occupied by the rolling carriage of the leaf, and the drive belt. For example, the space available in width / height for internal doors laid "in pocket", that is to say between two thin walls, is only 70 x 70 mm. There can be no question of letting an electric cable, even spiral, move safely and get stuck in the guiding and driving mechanism of the door. This problem is solved by the device described above, which is very compact and whose amplitude is controlled in the three longitudinal, lateral and vertical directions in the available space.
• The third difficulty is that the surface of the leaves and its embedded signage, can be very important, several M ² , which requires in the state of the art LEDs powerful and in number, to ensure homogeneity of lighting . The consequence is that the installed power can become prohibitive in terms of power consumption and the release of heat incompatible with the environment of an automatic door. This problem will be partially solved thanks to pixelated "full white mass" light supports, the light only catching the pixels, making it possible to optimize the installed power and the homogeneity of the lighting. These pixels will advantageously consist of small scattering patterns, and larger patterns thereafter. For large-area logos, a white pixelated or transparent gradient gradient ink will be used on transparent adhesive film. All of these provisions make it possible to respond completely to this difficulty.

• un câble électrique spiralé connecté électriquement entre une source d'alimentation à basse tension par transformateur fixé au châssis, et un contrôleur de tension solidaire du vantail mobile, ledit câble étant enrobé dans une gaine isolante,
• un rail de guidage pour des supports de coulissement introduits entre les spires isolées du câble à intervalles réguliers pour maintenir le câble sans flexion lors de son déploiement, ledit rail de guidage étant fixé sur le rail principal de roulement.

In general, the device for powering the mobile leaf supported by at least one carriage which rolls along a main running rail, is characterized by:

• a spiral electric cable electrically connected between a transformer-mounted low-voltage transformer power source and a voltage controller secured to the mobile leaf, said cable being embedded in an insulating sheath,
• a guide rail for sliding supports introduced between the insulated turns of the cable at regular intervals to maintain the cable without bending during its deployment, said guide rail being fixed on the main rail of rolling.

Each sliding support comprises an H-shaped wire frame, having one of the branches capped with an anti-friction sheath configured to slide between the insulated turns of the cable, and the other branch provided with a plastic guide. sliding without wear in the guide rail.

The receiver to be electrically powered on the mobile leaf of the automatic door, can be a lighting system, a sensor or an actuator with or without electronic circuit.

According to a preferred embodiment, the power supply device is connected to a lighting device of the leaf glazing by at least one LED strip fixed along the lateral upright to obtain illumination by the vertical edges of the glazing during the displacement. . The distance between the LED strip and the side edges of the glazing is between 1 mm and 1.5 mm, and preferably of the order of 1.2 mm to obtainune optimum light diffusion.

According to one characteristic of the invention, the glazing is of the extra-clear or tempered laminated type, making it possible to illuminate, by the edges, a printed diffuser film adhesively bonded to the glazing of the sliding leaf.

According to an alternative embodiment, the lighting device is associated with double glazing of extra-clear or tempered type, the LED array allowing the diffusion of a light in the internal space of the double glazing enclosing a layer of air. Diffuse points are arranged on the rear glazing according to their distance from the light source, to form a backlit display area.

The diffuser film adhered to the glazing can be pixelated

Preferably, the wire frame is made of stainless steel of diameter between 3 and 5mm, the sheath is Teflon, the polyacetal guide, and the small extruded aluminum guide rail.

Brief description of the drawings

• La fig 1 représente une vue schématique d'un vantail coulissant en position fermée, et équipé du dispositif d'éclairage latéral du vitrage selon l'invention ;
• la fig 2 représente une vue de la figure 1 en position ouverte du vantail ;
• la fig 3 représente une vue en coupe du montage de la barette des Leds dans le cadre du vantail ;
• la fig 4 représente une vue en coupe d'un vantail, et d'une barrette de Leds ;
• la fig 5 représente une vue du câble d'alimentation spiralé avec les supports de coulissement, l'ensemble étant dans la position fermé du vantail;
• la fig 6 représente une vue du câble spiralé de la figure 5 en position ouvert du vantail ;
• la fig 7 représente une vue en coupe du câblé spiralé et son support de coulissement ;
• la fig 8 représente une vue en perspective d'un support de coulissement.

Other advantages and features will emerge more clearly from the following description of an embodiment of the invention given by way of nonlimiting example and represented in the accompanying drawings, in which:

• The fig 1 is a schematic view of a sliding leaf in the closed position, and equipped with the side lighting device of the glazing according to the invention;
• the fig 2 represents a view of the figure 1 in the open position of the leaf;
• the fig 3 represents a sectional view of the assembly of the barette of the LEDs in the frame of the leaf;
• the fig 4 represents a sectional view of a leaf, and a bar of LEDs;
• the fig 5 represents a view of the spiral feed cable with the sliding supports, the assembly being in the closed position of the leaf;
• the fig 6 represents a view of the spiral cable of the figure 5 in the open position of the leaf;
• the fig 7 represents a sectional view of the spiral cord and its sliding support;
• the fig 8 represents a perspective view of a sliding support.

Description of a particular embodiment

With reference to Figures 1, 2 , 5 and 6 , a mechanism for powering the lighting of leaves 2 by LEDs (light-emitting diodes) consists of a spiraled electric cable 7 and provided with an insulating sheath of polyurethane or a similar material. Sliding supports 8a, 8b, 8c, 8d, are inserted between the turns spaced from the sheath, so that the spiral cable 7 is always maintained substantially without bending, and sliding in a small guide rail 9, which is fixed on the main rail 5 which rolls the carriages 6a, 6b, supporting the sliding leaves 2 of the automatic door. The guide rail 9 extends in the same direction as the main rail 5.

During the opening movement of leaf 2 represented by the arrow O in figure 1 , the spiral cable 7 opens while lengthening, and does not bend by maintaining the sliding supports 8a, b, c, d which slide in the small guide rail 9. During the closing movement of the leaf 2 represented by the arrow F in figure 2 , the spiral cable 7 closes by approximation of its turns.

A controller 17 for controlling the LEDs is fixed on the upper part of the mobile leaf 2 of the door. A transformer 12 which supplies the LEDs with low voltage energy is fixed on the end of the main rail 5. The supply cable 7 is electrically connected between the transformer 12 which is fixed and the controller 17, being arranged between the left amounts 2a and 2b right of the leaf 2 mobile sliding in its upper horizontal frame 1.

With reference to Figures 3 and 4 , strips of LEDs 3 are fixed on the sides of the uprights 2a, 2b of the vertical leaf 2, being wedged with glazing shims 4. The heat dissipation is effected by the aluminum uprights 2a, 2b of the leaf 2. The lighting is captured on a film 11 printed diffuser tinted white in the mass and adhesive on the glazing 10 of the leaf 2, and can be pixelated to homogenize or increase the brightness. The distance d separating the LEDs from the side edges of the glazing unit 10 is advantageously between 1 mm and 1.5 mm, and preferably of the order of 1.2 mm to obtain optimum light diffusion.

With reference to Figures 7 and 8 , the sliding supports 8a-8d all have identical profiles, for example consisting of a frame 13 of stainless steel wire in the form of H. The frame 13 is advantageously capped with a sheath 14 for example Teflon to slide without friction neither wear nor noise between the turns of the polyurethane sheath of the spiraled electric cable 7 (see figure 6 ). The other leg H of the armature 13 is inserted in a guide 15 for example of polyacetal Delrin type or any other similar plastic material favorable to sliding without premature wear on the aluminum. The guide 9 can be machined or extruded to slide without excessive play, without noise and without friction along the small guide rail 9.

The power supply mechanism of the leaf 2 previously described is simple and economical to produce, and allows to feed the Leds bar 3 recessed in the uprights 2a, 2b side of an automatic door moving without risk of hooking the cable 7 in the mechanism of the door, without noise additional to that of a motorized door, compatible with the speed of opening and closing doors including accelerations / braking and compatible with the very large number of maneuvers required for this type of mechanism.

The opening stroke of the 2 sliding leaf can reach 3 meters, and the maximum opening speed 1.5 m / second. The illuminated film can occupy a surface up to 1.5 M2.

The mechanism that is the subject of the present invention does not concern an automatic door provided with a single leaf, but also a door that often comprises two leaves. The mechanism will also be able to equip a telescopic door comprising several leaves. In this case each leaf of the telescopic door may be equipped with the mechanical device described in the present invention. In addition, each leaf will have a sign or color, to unfold a message as the closing movement of the door.

It is clear that the light emitting diode lighting device can be replaced by any other lighting means, including halogen lamps or optical fibers.

The power supply system according to the Figures 5 and 6 can also be used to supply any other receiver or sensor integral with a mobile leaf of the automatic door.

The application may also relate to a curved door, the guide rail 9 being able to bend according to the same radius of curvature as the main rail 5, within the radius limits compatible with the refraction angle of the light scattering in the glazing 10.

Claims (10)

Device for supplying a door leaf (2) movable with an automatic door driven by a control mechanism integral with the frame, said leaf being supported by at least one carriage (6a, 6b), which rolls along an main running rail when moving between the open and closed positions, characterized in that said feed device comprises: - A spiral electric cable (7) electrically connected between a low voltage transformer power source (12) fixed to the frame, and a voltage controller (17) integral with the mobile leaf (2), said cable being embedded in a insulating sheath, - a guide rail (9) for sliding supports (8a, 8b, 8c, 8d) introduced between the isolated turns of the cable (7) at regular intervals to maintain the cable (7) without bending during its deployment, said guide rail (9) being fixed on the main rail (5) rolling. Electrical supply device according to claim 1, characterized in that each sliding support (8a, 8b, 8c, 8d) comprises an H-shaped wire frame (13) having one of the capped branches. an anti-friction sheath (14) configured to slide between the insulated turns of the cable (7), and the other branch provided with a guide (15) of plastic material which can slide without wear in the guide rail (9). Power supply device according to claim 1 or 2, characterized in that the supply device is connected to a lighting device of the glazing (10) of the leaf (2) by means of at least one LED strip ( 3) fixed along the lateral amount (2a, 2b) for to obtain lighting by the vertical edges of the glazing (10) during the displacement. Power supply device according to Claim 3, characterized in that the distance d separating the led strip (3) from the side edges of the glazing unit (10) is between 1 mm and 1.5 mm, and preferably of the order of 1.2mm to obtain an optimum diffusion of light. Electrical supply device according to Claim 3, characterized in that the glazing (10) is of the extra-clear or tempered laminated type, making it possible to illuminate, by the edges, a printed diffuser film (11) adhesively bonded to the glazing (10) of the leaf. (2) sliding during the opening and closing movements. Power supply device according to claim 3, characterized in that the lighting device is associated with a double glazing of extra clear or tempered type, the Leds bar (3) allowing the diffusion of light in space internal double glazing enclosing a layer of air, diffusing points being arranged on the rear glazing according to their distance with the light source, to form a backlit display area. Power supply device according to claim 5, characterized in that the diffuser film (11) adhered to the glazing (10) is pixelated. Electrical supply device according to claim 2, characterized in that the frame (13) of round wire is made of stainless steel of diameter between 3 and 5mm, the sheath (14) is Teflon, the guide (15) in polyacetal, and the guide rail 9 extruded aluminum. Power supply device according to one of the preceding claims, characterized in that the opening stroke of the leaf (2) sliding can wait 3 meters, and the maximum opening speed 1.5 m / second. Power supply device according to claim 5 or 7, characterized in that the illuminated film (11) can occupy a surface area up to 1.5 M2.

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