EP2016250B1 - Motorised hinge mechanism - Google Patents

Description

The present invention relates to the field of motorization systems allowing the automatic operation of openings.

Various solutions are known in the state of the art for motorizing an opening. In particular, patents FR 2611798 and FROM 29,609,749 describe a device comprising a vertical axis, integral with a hinge and driven by a transmission shaft, said transmission shaft passing through the wall to an electric motor located inside the building.

This solution of the prior art, however, has the drawback of being difficult to install in that it requires an operation of drilling the wall to pass a transmission shaft to the motor housing with all the problems of sealing that this implies.

We also know the patent GB 2264534 which has a gate operating mechanism allowing the opening and closing of said gate manually or motorized. This mechanism is however unsuitable for certain opening elements such as windows, since it cannot be supported by a vertical upright.

Finally, we know the patent DE 9204030 which also has a portal mechanism, part of which is intended to be buried in the ground. As before, this mechanism is not suitable for openings supported by a vertical upright.

Indeed, an object of the invention is to avoid accidents.

A shutter motorization can cause accidents of several types, bodily injury or material accident.

Personal injury occurs when the shutter closes on someone. Material collisions can also occur between two sashes.

To avoid these collisions either between flaps, or to aggravate them when they occur between a flap and an obstacle in its path, or an object or a person who comes to stand on said path, the invention proposes a management of these risks. accidents.

For this, the inventor had to find a solution to detect these risks, then the risks detected to manage them.

Added to this is the need to manage unforeseen obstacles, person or object in the path of a shutter.

The inventor has observed that the shutter against an obstacle seeks to continue its course and for this the device increases the power.

To go beyond the power necessary for the normal movement of a shutter is to cross a threshold value.

Thus, to immediately stop the movement of the shutter as soon as the threshold value is reached, the control card (via a stop circuit) cuts the power supply to the motor. This measure ensures that the shutter does not close on someone.

The object of the present invention is to remedy these drawbacks by proposing a motorization system that is easy to install and suitable for all types of openings having side hinges.

As such, the invention relates firstly to a motorization system for a shutter-type opening having side hinges cooperating with hinges installed in the masonry, the function of these hinges being to support the shutter and to rotate, at least one of the hinges being driven by a motor. A housing incorporating the motor and a geared motor whose output shaft is perpendicular to a plane passing through the axis of the motor, said output shaft being coupled to at least one of said hinges . At least one of the hinges consists of the box intended to be sealed in the masonry.

• de gérer l'ouverture et la fermeture de l'un des volets avant l'autre pour éviter les risques de collision ;
• de déclencher un circuit d'arrêt du moteur électrique lorsque la puissance d'alimentation du système de motorisation dépasse la valeur seuil pour assurer que le volet ne se referme pas sur quelqu'un.

The motorization system contains an electronic card which allows:

• manage the opening and closing of one of the shutters before the other to avoid the risk of collision;
• to trigger an electric motor stop circuit when the power supply to the motorization system exceeds the threshold value to ensure that the shutter does not close on someone.

This solution has the advantage of easy installation. The box ensures the sealing of the motorization means, as well as the mechanical retention in the masonry. This embodiment is very robust and is particularly suitable for exterior openings.

Advantageously, the motorization system according to the invention comprises an output shaft offset with respect to the median axis of said housing.

Preferably, the motorization system comprises a cylindrical housing.

Also preferably, the housing of the drive system has projecting elements at its outer surface to facilitate attachment by sealing means.

According to one variant, the reduction rate of the gear motor of the motorization system is less than 1/10000.

According to another variant, the coupling between the output shaft and the hinge is provided by a torque limiter.

The motorization system can obviously include a manual disengagement means of the hinge relative to the output shaft.

The motorization system can also include a solar collector.

The motorization system can also include a limit switch.

According to the invention, the motorization system further comprises a control card comprising a circuit for stopping the motor when the supply power exceeds a threshold value.

The invention also relates to a method of installing in the masonry of a box according to that described above in which the first seal placed on its rear face and the second seal on the emerging part. to radically simplify the installation operation which no longer boils down to a simple sealing operation of the already sealed recessed part in the masonry.

• la figure 1 est une vue partielle et schématique d'un volet supporté par deux gonds. L'un d'eux est entraîné par un système de motorisation conforme à l'invention ;
• la figure 2 est une vue en perspective d'un système de motorisation conforme à l'invention ;
• la figure 3 est une vue latérale, partielle et schématique d'un système de motorisation conforme à l'invention et encastré dans un mur ;
• la figure 4 est une vue de dessus, partielle et schématique d'un système de motorisation conforme à l'invention et encastré dans un mur.

The invention will be better understood on reading the following description, relating to a non-limiting example of an embodiment where:

• the figure 1 is a partial and schematic view of a shutter supported by two hinges. One of them is driven by a motorization system according to the invention;
• the figure 2 is a perspective view of a motorization system according to the invention;
• the figure 3 is a side view, partial and schematic of a motorization system according to the invention and embedded in a wall;
• the figure 4 is a top view, partial and schematic of a motorization system according to the invention and embedded in a wall.

The figure 1 has a shutter-type opening 2 supported by an upper lateral hinge 4 and a lower lateral hinge 6. These lateral hinges 4,6 cooperate with two hinges 8,10 fixed in the masonry 12. The upper hinge 8 is a traditional hinge whose function is to support the shutter 4 and to allow it to rotate when it is handled.

The lower hinge 10 is itself driven by a motorization system 20 according to the invention. It is supported by the emerging part 24a of the housing 22. The housing 22 contains the motorization system 20 according to the invention. Furthermore, the lower hinge 10 is fitted into the female part 6a of the lower lateral hinge 6. A support ring 14 makes it possible to avoid any friction between the female part 6a and the emerging part 24a of the housing 22.

According to another embodiment, all the hinges supporting the opening cooperate with a hinge driven by a motorization system 20 according to the invention.

The lower hinge 10 and the female part 6a are held in position relative to each other by means of a pin 16. This pin 16 passes through a plane normal to the longitudinal axis of the lower hinge 10. It is removable so as to be able to easily disengage the motorization system 20 and thus manipulate the shutter 2 manually, without having to dismantle the entire system.

Furthermore, the lower hinge 10 is offset with respect to the median axis of the emerging part 24a of the housing 22. In this configuration, the lower hinge 10 is as close as possible to the edge of the window. The traditional geometry of hinged shutters is thus respected. This motorization system 20 is, moreover, particularly discreet. Indeed, the emerging part 24a is very small and therefore does not distort the house facades. Finally, it is practical since it is suitable for all types of openings 2. It simply comes replace one of the hinges and can be installed on new constructions as well as on existing buildings.

According to a particular embodiment presented on figure 2 , the emerging part 24a of the housing 22 is of parallelepiped shape. Furthermore, this emerging part 24a extends the embedded part 24b of the housing 22. This embedded part 24b is cylindrical in order to facilitate its embedding in the masonry 12. This embedded part 24b also has a multitude of projecting elements 26 on the surface which facilitate its attachment by a sealing means.

On the figures 3 and 4 , the embedded part 24b of the housing 22 is sealed in the masonry 12. This embedded part 24b contains several mechanical elements including an electric motor 30 coupled to a gear motor 32 with a reduction ratio of 1/12000. An electric sheath 34 escapes from the electric motor 30 and from the recessed part 24b. It passes through the masonry 12 to connect to the electronic card 36 installed in the control box 38. This electrical sheath 34 transmits the control signals of the motorization system 20, in particular the power supply and the starting signals. and stopping the electric motor 30. A first seal 40a ensures the confinement of the recessed part 24b. The seal is placed inside the recessed part 24b, on its rear face. The intermediate output shaft 40 of the gear motor 32 is integral with a worm 42. This worm 42 rotates a gear 44. The gear 44 is integral with an output shaft 18. The coupling of this output shaft 18 and of the lower hinge 10 is provided by a torque limiter 46. Its function is to protect the entire system in the event of manual manipulation of the shutter 2 without prior disengagement. A second seal 40b is also provided to seal the emerging part 24a. The advantage of these seals 40a, 40b and more generally of the motorization system 20 according to the invention is to radically simplify its installation. In fact, all the sealing problems are now resolved inside the housing 22 containing the motorization system 20. The installation operation therefore only boils down to a simple sealing operation of the recessed part 24b. inside the masonry 12.

As the openings are often used in pairs, their opening and closing must be asynchronous in order to prevent the two parts of the same device from colliding. According to the invention, the motorization system 20 contains an electronic card 36 which makes it possible to manage the opening and closing of one of the shutters before the other. Thus, the risk of collision is avoided.

This control card 36 also includes a circuit for stopping the electric motor 30 intended to cut off the power supply to the motorization system 20 when an obstacle is placed in the path of the shutter 2. As soon as something hinders the travel of the shutter 2, the power supply of the motorization system 20 increases. When this increase exceeds a threshold value, this automatically triggers the stop circuit of the control card 36 and immediately interrupts the movement of the shutter 2. This safety measure ensures in particular that the motorization system 20 does not close on anyone. a.

The device further comprises two limit switch sensors connected to the electronic card 36 which make it possible to stop the mechanism when the leaf 2 arrives in the open or closed position.

Finally, the electronic card 36 of the motorization system 20 is electrically connected to a solar collector, ideally placed in a place with good sunlight, which triggers the opening of the opening 2 when the photovoltaic cell receives sufficient light. On the contrary, it triggers the closing of the opening 2 when the photovoltaic cell no longer receives sufficient light.

Claims (12)

1. Drive system (20) for a swing leaf such as a shutter (2) including lateral hinge leaves (4, 6) cooperating with hinge pins (8,10) fitted in the masonry (12), the function of the pins being to support the shutter and rotate, at least one of the pins (10) being driven by a motor (30), a housing (22) incorporating the motor (30) and a gear reducer (32) whose output shaft (18) is perpendicular to a plane passing through the axis of the motor (30), said output shaft (18) being coupled to at least one of said hinge leaves (6), characterised in that this hinge pin (10) includes the housing (22) designed to be sealed into the masonry (12), said drive system (20) containing an electronic board (36) which enables:

   - the opening and closing of one of the shutters before the other in order to avoid the risk of collision,

   - the triggering of a circuit that stops the electric motor (30) when the supply power to the drive system (20) exceeds a certain threshold value so as to ensure that the shutter does not close on a person.
2. Drive system (20) according to claim 1, characterised in that the output shaft (18) is offset from the median axis of said housing (22).
3. Drive system (20) according to claim 1 or 2, characterised in that the external part (24a) housing (22) is parallelepipedic in shape, while the embedded part (24b) is cylindrical so as to facilitate its embedding in the masonry (12).
4. Drive system (20) according to at least one of the previous claims characterised in that the embeddable part (24b) of the housing (22) has protruding elements (26) on its outer surface to facilitate its fixing by a means of anchoring.
5. Drive system (20) according to at least one of the previous claims, characterised in that the electric motor (30) is coupled with the gear reducer (32) with a gear ratio of less than 10000:1.
6. Drive system (20) according to at least one of claims 1 to 4, characterised in that the electric motor (30) is coupled with the gear reducer (32) with a gear ratio of less than 12000:1.
7. Drive system (20) according to at least one of the previous claims, characterised in that the coupling between the output shaft (18) and the hinge pin (10) is provided by a torque limiter (46) protecting the entire system in the event of manual handling of the shutter (2) without first disengaging the system.
8. Drive system (20) according to at least one of the previous claims, characterised in that it includes a system of manually disengaging (16) the hinge leaf (6) from the output shaft (18).
9. Drive system (20) according to at least one of the previous claims, characterised in that it further includes a solar sensor connected electrically to the electronic board (36) to trigger the opening of the shutter (2) when a photovoltaic cell receives enough light and close the shutter (2) when the photovoltaic cell captures the drop in light intensity.
10. Drive system (20) according to at least one of the previous claims, characterised in that it further includes a limit switch connected to the electronic board (36) enabling the mechanism to be stopped when the shutter (2) reaches the open or closed position.
11. Drive system (20) according to at least one of the previous claims, characterised in that it includes a first seal (40a) ensuring the containment of the embedded part (24b) placed on its rear surface and a second seal (40b) ensuring the containment of the external part (24b), with a view to resolving all the tightness problems inside the housing.
12. Method of installation in the masonry (12) of a housing for a drive system (20) consistent with that of the previous claim which includes a first seal (40a) placed on its rear surface and a second seal (40b) on the external part in order to radically simplify the installation operation, which now consists merely of a simple operation to fix the already sealed embedded part (24b) in the masonry (12).

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