EP1760249B1 - Actuating device for a closure system of buildings - Google Patents

Description

The invention relates to a drive device for a building closure system, such as a door, window, gate, garage door, rolling shutter or the like, comprising an electric drive motor rotatably mounted in a tubular housing for controlling in rotation or in translation of a drive tube.

The present invention relates to the general field of drive devices for building closure systems, whether it is shutters, garage doors, doors or gates, shutters or other.

The main problem in such electric motor drive devices lies in the possibility to allow, in the event of any malfunction of this engine, as the case may be, the closing or opening of a gate, a shutter rolling, door or other, to secure the building or, on the contrary, to allow the evacuation of the latter.

Thus, it is particularly known from the document DE-U-298 18 023 , a drive device for roller shutter which comprises a winding tube held on either side by support cheeks and in one end of which is engaged a tubular drive motor, knowing that this device The drive unit further comprises a manual winch integrated in the motor head which is housed in the support cheek of the winding tube.

Thus, when the engine is running, it drives directly or through a gearbox said winding tube, while in case of power failure or any malfunction, the winch operates directly this tube d winding which, in its rotation, drives the motor electric so that a rotating contact is necessarily implanted in the latter and the motor head.

In the same vein, it is known from the document FR-2849892 , a drive device for rolling shutter whose winch is not implanted in the motor head adapted to be fixed on the support cheek contributing to maintaining rotation of the winding tube. More particularly, this drive device comprises, in this case, adjustment means in axial position of the winch relative to said support cheek, this on the side of the end of the winding tube receiving said motor.

These adjustment means are defined by mounting means in axial sliding of the winch with respect to said support cheek on which this motor is secured.

Finally, there is still a motorized roller shutter comprising a geared motor brake for driving in rotation of a winding tube of an apron. In this case, there are provided disengageable connection means interposed between the output shaft of the gear motor and the winding tube allowing, in the disengaged position, the free rotation of the latter relative to the gear motor under the influence of an action exerted directly on the deck. In short, it intervenes here at the link between the output shaft of the motor and the driven member to provide a disengagement function to release this driven element.

In this regard, it should be noted that the present invention also finds application in the field of linear actuators as described in the document WO-2004/020871 .

Such an actuator comprises a first tubular body inside which is placed a nut carrying, on the periphery, the less a helical raceway for the circulation of balls interposed between the tubular body and the nut. It is designed capable of being rotated to translate said tubular body.

If recirculation of the balls can be done internally to the nut, in this document of the state of the art the raceway at the periphery of the nut has a helical portion extending around the latter at an angle less than 360 °, knowing that an enlarged portion joining the ends of this helical portion, is to constitute a recirculation zone of these balls.

In the first tubular body may also be formed helical rolling tracks for guiding the balls. The pitch at these runways is defined as the helical pitch of a raceway at the nut.

It can be composed of two elements each defining part of the helical raceway, knowing that by clamping the elements against each other, it acts on the preload of the balls between the nut and the inner wall of the first tubular body. Furthermore, the drive means acting on the nut comprise a motor mounted fixed inside a second tubular body extending wholly or partly in the first tubular body, while being movable in translation relative to this last.

The problem posed by this type of actuator is that, in the event of a motor failure or simply a power failure, the actuator is locked in position and, consequently, prevents any manipulation of the device on which it acts.

Assuming that this actuator controls the opening of a building closure device, such as a door, a gate, a garage door or other, the opening of this door is made impossible, except by separating the actuator. It will be noted that such a power outage may result from an incident inside a building, for example a start of fire, and a blocked actuator may then prevent the evacuation of this building.

Note, moreover, that the blockage results from the presence of a brake, especially electromagnetic type, which, precisely, is activated in the absence of current. This brake makes it possible to maintain the opening, as the case may be, in the open or closed position, directly through the actuator without any other locking or auxiliary locking device.

The present invention is intended to address the problem of the state of the art explained above, through an advantageous solution, allowing, if necessary, the manual control of any drive device, in the occurrence allowing the opening of a building closure system, or even close this system in case a failure was to occur before the building could be secured.

For this purpose, the invention relates to a drive device for a building closure system of the door, window, gate, garage door, shutter or the like type, comprising an electric motor rotatably mounted in a casing, in particular a tubular housing, for the control in rotation or in translation of a drive tube, characterized in that it comprises locking means designed adapted, in a first locking position, to immobilize in rotation said motor in its housing and in a minus another unlocking position, releasing said motor in rotation to allow manual control in rotation or in translation of said drive tube.

According to an advantageous embodiment, the locking means are constituted by a clutch device which, in cooperation with a locking pin axially extending the motor, is designed to immobilize in rotation the latter and, as the case may be, to ensure its unblocking for manual emergency control.

• la figure 1 est une représentation schématisée et en coupe longitudinale d'un dispositif d'entraînement selon l'invention pour la commande en rotation d'un tube d'enroulement notamment de volet roulant ;
• la figure 2 est une représentation similaire à la figure 1 représentant l'application de l'invention à un dispositif d'entraînement sous forme d'un actionneur ;
• la figure 3 est une représentation similaire à la figure 2, le corps tubulaire normalement commandé en translation par l'écrou de l'actionneur ayant été retiré ;
• la figure 4 est une représentation agrandie du détail A de la figure 3 ;
• la figure 5 est une vue agrandie du détail B de la figure 3 ;
• la figure 6 est une vue agrandie et partielle du détail C de la figure 2 ;
• la figure 7 illustre, de manière schématisée, le raccord électrique tournant pour l'alimentation du moteur.

The invention will be better understood on reading the following description and accompanying drawings illustrating embodiments.

• the figure 1 is a schematic representation in longitudinal section of a drive device according to the invention for the control in rotation of a winding tube including roller shutter;
• the figure 2 is a representation similar to the figure 1 representing the application of the invention to a drive device in the form of an actuator;
• the figure 3 is a representation similar to the figure 2 , the tubular body normally controlled in translation by the nut of the actuator having been removed;
• the figure 4 is an enlarged representation of detail A of the figure 3 ;
• the figure 5 is an enlarged view of detail B of the figure 3 ;
• the figure 6 is an enlarged and partial view of detail C of the figure 2 ;
• the figure 7 illustrates, schematically, the rotating electrical connection for the motor supply.

The present invention relates to a drive device 1 for a building closure system, such as a gate, a door, a swing shutter, a garage door, a shutter, etc.

The drive device 1 comprises an electric motor 2 housed in a tubular housing 3 and designed to drive in rotation or in translation a drive tube 5 ₁ ; 5 ₂ .

So, as visible in the figure 1 This electric motor 2 can provide the rotary drive, either directly or through a gearbox 4 _2, a winding tube 5 ₂ on which is able, for example, to come fold apron roller shutter.

As shown in Figures 2, 3 , and 4 It can also rotate a nut 4 ₁ for controlling in translation a first tubular body 5 _1, which takes this position nut 4 _1.

Accordingly, the drive tube referred to above is defined, as the case may be, by said winding tube ₂ or the first tubular body ₁ .

To return to the embodiment corresponding to the Figures 2 to 6 , the nut 4 ₁ comprises, peripherally, a raceway 6 on which move balls (not visible) interposed between the raceway 6 and the inner wall of the first tubular body 5 ₁ with a predetermined radial prestressing .

In this connection, the nut 4 ₁ can adopt an embodiment as described in the document WO 2004/02 0871 . Thus, the raceway 6 may comprise a helical portion extending around the nut at an angle less than 360 °, an enlarged portion joining the ends of this helical portion constituting a ball recirculation zone. AT note, however, that the invention also extends to actuators with a nut comprising an internal recirculation of the balls.

Furthermore, the prestressing exerted by the balls on the first tubular body 5 ₁ can result, again, from the tightening of two distinct components, each half of which is the helical raceway 6.

Note that the first tubular body 5 ₁ may itself be provided internally with a rolling track of a pitch equivalent to that of the raceway 6 of the nut 4 ₁ .

This is, in fact, rotatably mounted on the end of a transmission shaft 7 emerging through the housing 3 enclosing the engine 2.

This housing 3 is defined in the form of a second tubular body 8 designed capable of extending at least partially in the first tubular body 5 ₁ relative to which it is movable in translation.

Depending on the type of engine used, the management of its operation and the transmission to ensure, said motor 2 can act on the transmission shaft 7, if necessary through a suitable gearbox.

According to the invention, the engine 2 is rotatably mounted in the casing 3, while locking means 9 are designed capable, in a first locking position V illustrated in FIG. figure 6 to immobilize in rotation said motor 2 in the casing 3 and, in at least one other unlocking position D, visible in the Figures 1, 2, 3 and 5 , to release in rotation this motor 2 to allow the manual control in rotation of the winding tube 5 ₂ or in translation of the first tubular body 5 ₁ .

It should be noted that when it is a question of locking in rotation or release of the engine 2, it must be understood motor and possibly gearbox 4 ₂ associated.

Thus, the engine 2 is designed with an advantageously circular section adapted to the internal section of the second tubular body 8 that defines the housing 3.

In particular, stop means 10 provide immobilization in translation of the motor 2 in the housing 3.

On the side of the transmission shaft 7 these abutment means 10 are defined by a ring or an annular flange 11 on which or abuts the end 12 of the motor 2. These abutment means 10 are further complemented by a guide ring 13 at the opposite end 14 of this engine 2.

Note, moreover, that the maintenance in free rotation of the engine 2 in the housing 3 can be ensured through two guide rings 15, 13 acting as a bearing, respectively, for maintaining the rotation of the shaft transmission 7 and a locking pin 16 that comprises, in the same axially extending, the engine 2 at its opposite end 14.

As for the locking means 9, they are constituted, advantageously, by a clutch device 17 which, in cooperation with the locking pin 16 is designed able to immobilize in rotation the motor 2 or, as the case may be, ensure its release for a manual emergency command.

According to a preferred embodiment, beyond the guide ring 13 the locking pin 16 carries at least one groove or axial groove 18 designed adapted to cooperate by axial engagement with respectively a groove or groove 19 formed internally to a socket 20 defining the device of 17. Preferably, all around the inner wall of the sleeve 20 is formed a succession of grooves or, as the case, splines 19 to facilitate their cooperation with the groove or groove or grooves 18 of the locking pin 16.

Beyond a portion 21 carrying the grooves or axial grooves 18, the locking pin 16 is extended by a portion of the guide pin 22 on which is engaged in free rotation the sleeve 20 of the clutch device 17 Furthermore, it is mounted in translation in a guiding sleeve 23 fixedly mounted in the casing 3. In other words, the clutch device 17, if it is axially movable in this guiding sleeve 23, is immobilized in rotation in this case. last by means 24 adapted.

It should also be noted that this guide sleeve may form an integral part of the guide ring 13 by extending it above said clutch device 17.

In the illustrated embodiment, these means 24 are of the groove and key type, the guide sleeve 23 being again provided at its inner wall with one or more axial grooves or grooves 25 cooperating with, as the case may be, a or several grooves, respectively, splines or axial keys 26 formed at the periphery of the clutch device 17.

In view of the above description, it is clear that the locking position V corresponding to the figure 6 is where the sleeve 20 of the clutch device 17 is engaged on the groove or grooves 18 of the portion 21 of the groove axis 16. On the contrary, the unlocking position D is that illustrated in FIGS. Figures 1, 2, 3 and 5 where the sleeve 20 is seen pushed back over the guide pin portion 22 of this locking pin 16.

The locking means 9 are completed, according to the invention, by control means 27 for bringing them into the locking position V or, as the case, unlocking D. These control means 27 are defined by a control head 28 that includes the clutch device 17 and on which is designed able to act a control element 29 that defines, according to a preferred embodiment, a key cylinder 30. This is mounted at the housing 3 of the engine 2 so as to be able to act, via a drive finger 31, on said control head 28.

This cooperation is thus defined so that, under the influence of a rotation of said drive finger 31 controlled by a user by action on the key of the barrel 30, this results in a linear axial displacement control of the clutch device 17 until to the clutch on the locking pin 16, corresponding to the locking position V of the locking means 9 or until disengaging corresponding to the unlocking position D.

According to another feature of the invention which is visible in the figure 7 , the drive device 1 comprises a rotating collector device 32 for connecting the motor 2 a suitable power supply. Thanks to such a rotating manifold, not only the free rotation of the motor 2 is made possible, but, moreover, its power supply is ensured, regardless of its angular position in the housing 3, when, after a disengagement control, the motor 2 is again locked in rotation by the locking means 9 pushed back into the locking position V.

In the case of a drive device according to the invention, for the rotational control of a winding tube 5 ₂ , for example with regard to a roller shutter, it is clearly understood that with respect to description above, the tubular housing 3, housing the electric motor 2, can be secured, at its end 33 emerging from said winding tube 5 ₂ a support cheek 34 of the type equipping, usually, such a shutter.

It should also be noted that suitable compensation means can facilitate the operation of the closure system controlled by the drive device 1. In particular, in the case of a roller shutter, a compensation spring can be integrated into the control tube. winding 5 ₂ , this spring, put under stress during the deployment of the deck of this shutter, compensates at least in part the weight of the deck to facilitate its ascent, including manual after unlocking said locking means 9.

Claims (14)

1. Actuating device for a closure system of buildings of the type door, window, gate, garage door, roller shutter or the like, including an electric motor (2) rotationally mounted in a housing (3), namely a tubular housing, for controlling in rotation or in translation an actuating tube (5₂; 5₁), wherein it includes blocking means (9) designed capable, in a first locked position (V), of immobilizing in rotation said motor (2) in its housing (3) and, in at least one other unlocked position (D), of releasing the motor (2) in rotation, in order to permit the manual driving in rotation or in translation of said actuating tube (5₂; 5₁).
2. Actuating device according to claim 1, wherein the blocking means (9) consist of a coupling device (17) which, in cooperation with a blocking axle (16) axially extending the motor (2), is designed capable of immobilizing said motor (2) in rotation or, as the case may be, ensuring its unblocking for a manual control in case of emergency.
3. Actuating device according to claim 2, wherein the blocking axle (16) axially extends the motor (2) at its end (14) opposite the one (12) carrying a transmission shaft (7) acting on said actuating tube (5₁; 5₂).
4. Actuating device according to claims 2 and 3, wherein the blocking axle (16) carries at least one axial channel or groove (18) designed capable of cooperating through axial engagement with a groove or channel (19), respectively, provided for inside a socket (20) defining the coupling device (17).
5. Actuating device according to claim 4, wherein over the full periphery of the internal wall of the socket (20) a succession of grooves or, as the case may be, channels (19) are provided, in order to facilitate their cooperation with the channels or grooves (18) of the blocking axle (16).
6. Actuating device according to claim 4 or 5, wherein the axial channels or grooves (18) extend over a portion (21) of the blocking axle (16), which is extended by a portion of a guiding axle (22) on which is inserted, in free rotation, the socket (20) of the coupling device (17), furthermore mounted movable in translation and stationary in rotation with the aid of means 24 adapted in a guiding sleeve (23) fixedly mounted in the housing (3).
7. Actuating device according to claim 6, wherein the means (24) are of the keyway and key type, the guiding sleeve (23) being provided at the level of its internal wall with one or more axial channels or grooves (25) cooperating, as the case may be, with one or more grooves, axial channels or keys (26), respectively, provided for at the periphery of the coupling device (17).
8. Actuating device according to any of the preceding claims, wherein the blocking means (9) are complemented with control means (27) permitting to bring them into a locked position (V) or, as the case may be, into an unlocked position (D).
9. Actuating device according to claims 2 and 8, wherein the control means (27) are defined by a control head (28) the coupling device (17) includes and on which is designed capable of acting a control element (29), such as a key cylinder (30).
10. Actuating device according to claim 9, wherein the control element (29) is mounted at the level of the housing (3) of the motor (2) so as to be capable of acting, through a driving pin (31), on said control head (28) in order to ensure, under the impulse of a driving in rotation of said driving pin (31), a linear axial movement of the coupling device (17) until its clutching or declutching on said blocking axle (16) occurs.
11. Actuating device according to any of the preceding claims, wherein it includes a slip ring device (32) for connecting the motor (2) to an electric power supply.
12. Actuating device according to any of the preceding claims, wherein the motor (2) is maintained in free rotation in the housing (3) by two guide rings (15, 13) acting as a bearing for maintaining in rotation, on the one hand, the drive shaft (7) acting on the actuating tube (5₁ ; 5₂), at one end (12) of said motor (2) and, on the other hand, the blocking axle (16) extending said motor (2) at its opposite end (14).
13. Actuating device according to any of the preceding claims, wherein the housing (3) of the motor (2) is defined in the form of a second tubular body (8) designed capable of extending at least partially in the actuating tube (5₂; 5₁) with respect to which it is movable in rotation or in translation.
14. Actuating device according to claim 13, wherein the motor (2) is designed with a circular cross-section adapted to the internal cross-section of the second tubular body (8) the housing (3) defines.

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