FR2679591A1 - ELECTROMECHANICAL CONTROL DEVICE FOR A TILTING DOOR, IN PARTICULAR A GARAGE TILTING DOOR. - Google Patents

Abstract

The invention relates to an electromechanical control device (1) for an overhead door (2), composed of a leaf balanced by lateral counterweights and connected to said leaves by means of cables or chains which are partially wound around pulleys or toothed pinions driven by transmission means co-operating with driving means of a geared-motor assembly. This electromechanical control device is characterised in that it comprises at least one driving plate (33, 33A) attached to the leaf (7) and capable of co-operating directly with the driving means (17) of the geared-motor assembly (14) in the respective initial and final opening and closing phases of the overhead door, said electromechanical control device comprising, furthermore, release means (6) actuated via the driving plate or driving plates (33, 33A) for releasing the geared-motor assembly (14) from said transmission means (18) during this respective initial and final opening and closing phase.

Description

The present invention relates to a control device

  electromechanical door for tilting door, in particular for a garage door, consisting of an opening balanced by lateral counterweights connected to said door by partially wrapped cables or chains, around pulleys or toothed gears driven via means of

  transmission cooperating with driving means of a motor vehicle assembly

  reducer. The present invention will find application in the field of carpentry of the building and, more particularly, in the manufacturers of

  overhead doors, especially garage doors.

  In fact, Von already knows electromechanical control devices for up-and-over doors, especially for garage door

  corresponding to the description above.

  Thus, such a device is in particular described in document EP-B-

0 089 909.

  Thus, this electromechanical control device known through this prior document applies more particularly to garage tilting doors comprising a frame consisting of two uprights connected to their upper part by a lintel placed horizontally and a guided tilting opening by means of guide pins or the like moving in vertical rails arranged, precisely, in the amounts of the frame This opening is, moreover, balanced by means

  lateral counterweights sliding in vertical slideways lying.

  possibly, up to the amounts of the frame In fact, these counter

  the weights are connected to the sash by means of cables or chains that wind, partially, around driven pulleys or toothed gears,

  precisely, by means of the electromechanical control device.

  This consists, more precisely in an electric motor assembly

  gearbox fixed by means of supports on the lintel of the frame.

  This geared motor has a motor pinion which drives a driven pinion disposed at one end of a mechanical timer The latter has the function of causing a shift of the opening phase and / or closing of the opening by relative to the unlocking and / or locking phase More precisely, by means of this mechanical timer, one

  obtains, especially in the case of an order to open the overhead door.

  a shift between the moment when the electric motor is active and the o the transmission means, connected to the pulleys or toothed gears, are driven It should, in fact, to ensure prior to this opening, the unlocking of the opening Of course, when closing, this shift occurs in the other direction to the extent that the transmission means cease to be driven when the door is brought into contact with the frame, while the geared motor continues to operate in sight

  to actuate the locking means.

  As for the mechanical timer, it consists of a tubular element placed parallel to the gear motor and enclosing an elastic element, such as a coil spring which, when at rest has an outer diameter substantially equal to the internal diameter said tubular element Moreover, one of the ends of this coil spring is

  made integral with the driven pinion cooperating with the motor pinion of the motorcycle

  reducer, while the other end is made integral in rotation by

  via appropriate means, of said tubular element.

  It should be noted, moreover, that this mechanical timer is traversed, from one side to the other, by a drive shaft on which is mounted, free in rotation, the driven pinion while the tubular element is, in turn, secured to it. drive shaft This constitutes, in part, the transmission means cooperating with the pulleys or pinions

toothed.

  Thus, the operation of this known device is the following If we consider that the opening is closing and that it comes

  to abut against the lintel of the frame, this opening is immobilized, and the motorcycle

  The gearbox continues to be activated, it follows that the tubular element of the mechanical timer is blocked, while the driven gear is still driven leading to the tensioning of the elastic element In fact, this complementary rotation of the motorcycle reducer results in the locking of the overhead door via appropriate means

  actuated precisely during this phase by said geared motor.

  The disadvantages encountered through this known electromechanical control device are twofold First of all this device is not able to guarantee perfect locking of the opening against the frame in the measurement o, if the opening meets an obstacle preventing it from coming, perfectly, applies against the frame, the gear motor comes to actuate the locking means without them can actually cooperate with the opening Thus, experience has shown that a wind of lesser power was able to interfere, precisely, this locking operation. In addition, since the mechanical timer involves a spring that the geared motor must turn on each closing and locking of the tilt sash, the electric motor itself must have a much greater power to the power actually needed to open and close the door, knowing that

opening is balanced.

  However, if this excessive power is not really a handicap if one considers the economic point of view of the overhead door it is particularly undesirable from the point of view of safety Indeed, the less the electric motor is powerful, less the opening and closing maneuvers of the opening are dangerous for a potential user located nearby In addition, the current standardization leads to minimize this power of the motor means for the automatic opening control of the tilting door, power which is no longer compatible with the constraints encountered within the framework of the

  electromechanical control precisely described in this document EP-B-

0.089 909.

  It should also be noted that in the case of a disengagement command to allow the manual opening or closing of the overhead door, this disengagement occurs between the electric motor part and the speed reduction part. Therefore, during an opening manual of the tilting door, the fact of maintaining the connection between the transmission means connected to the opening, and said speed reducer also requires to drive it It follows that the tilting door can be operated very slowly with a heavy impression of

this last.

  The present invention therefore proposes to remedy all of the aforementioned drawbacks and the solution that has been adopted is both simple, which is synonymous with reliability, and safe insofar as the operation of the device of Electromechanical control loses its randomness, while involving an electric motor of

less power.

  To this end, the invention relates to an electromechanical control device for a tilting door, in particular, for garage door, composed of an opening balanced by lateral counterweights connected to said opening by cables or chains winding, partially around pulleys or toothed gears driven by means of

  transmission cooperating with driving means of a motor vehicle assembly

  gearbox, characterized in that it comprises at least one drive shoe mounted on the opening and adapted to cooperate directly with the drive means of the geared motor assembly in initial phase, respectively final, d opening and closing of the tilting door, corresponding to the locking and unlocking phases of the sash, said electromechanical control device further comprising disengaging means actuated through the one or more drive shoes to disengage the opening. motor-reduction unit of said transmission means during this initial phase, respectively, final opening and closing. According to another characteristic of this invention, the electromechanical control device comprises means for locking the leaf against the frame, said locking means being constituted by the cooperation, in the closed position of the door, the one or more

  driving pads with the drive means of the motor-driven unit

  gearbox which comprises a mechanical brake actuated when the engine

electric is not requested.

  According to another characteristic of the invention, this electromechanical control device comprises manual disengagement and unlocking control means acting on said disengaging means to, on the one hand, undo the cooperation between the transmission means and the control means. driving the geared motor assembly and, secondly, between said drive means of the latter and the one or more training pads

associated with the opening.

  The main advantages obtained thanks to this invention consist,

  essentially, in that the electric motor associated with the motor unit

  gearbox must have only the power necessary to control the opening and closing of a balanced leaf, since no additional function is associated with it Indeed, this electromechanical control device is devoid of any mechanical timer, but also specific locking means that can be operated individually, since these locking means are constituted substantially by the simple cooperation of the drive shoes with the geared motor unit

  through the drive means of the latter.

  Other objects and advantages of the present invention will be apparent from

  course of the following description relating to an embodiment

  given as an indicative and non-limiting example.

  The understanding of this description will be facilitated by referring to

  attached drawings and in which: Figure 1 is a schematic view of a swing door equipped with an electromechanical control device according to the invention, Figure 2 is a schematic and perspective view, illustrating, more particularly, this electromechanical control device Figure 3 is a schematic and sectional view along III-III of Figure 1 illustrating, more particularly, the release control means and manual unlocking Figures 4A, 4B, SA, 5B correspond to diagrams illustrating the operating principle of the electromechanical control device, FIG. 6 is a diagrammatic sectional view of a tilting door provided with an electromechanical control device according to the invention, this in the context of FIG. a specific application, the opening being shown, both in the closed position and in different

  positions occupied during the opening phase.

  As shown in FIG. 1, the present invention relates to an electromechanical control device 1 for an overhead door 2. Thus, this device is more particularly applicable to a garage tilting door comprising a frame 3 consisting of two connected uprights 4 and 5. , at their upper part, by a lintel 6 placed horizontally This tilting door 2 is further provided with a tilting opening 7, the latter being guided, by means of guide pins or the like moving in rails vertices arranged precisely in the amounts 4, 5 of the frame 3 The opening 7 is, moreover, balanced by means of counterweight 8, 9 sliding in vertical rails located, possibly at the height of the uprights 4, 5

of the frame 3.

  More specifically these counterweights are connected to the opening 7 by means of cables or chains 10, It winds, partially around pulleys or pinions 12, 13 These are driven by means

  of the electromechanical control device 1.

  As represented in FIG. 2, this electromechanical control device 1 consists of an electric motor-gear unit 14 made integral by means of a support 15 of the internal face 16 of the lintel 6 and comprising drive means 17 cooperating with transmission means 18 which are connected to the pulleys or toothed gears 12 13 in

to rotate them.

  It should be noted that the electric motor associated with the geared motor unit 14, is equipped with a mechanical brake actuated from the cutoff

  power supply of said motor.

  As regards more particularly, the drive means 17 equipping the geared motor assembly 14, these are in the form of a motor drum 19 with horizontal axis of rotation and maintained free in rotation, at its level. ends 20, 21 in bearings 22, 23 associated with the support 15 In fact, this drum motor 19 may have in its inner part and in a manner known to those skilled in the art, an electric motor with which is associated a gearbox However, this electric motor and this gearbox are also able to take position externally to the drum motor 19 while ensuring the drive Moreover, the latter comprises, on its outer periphery one or more friction drive elements 24 24 A, such than rubber belts

  at least one of which cooperates with said transmission means 18.

  The latter consist of a shaft 25 parallel to the motor drum 19 and passing through, from one side, bearings 26, 27 arranged in the same vertical planes as the bearings 22 23 Just like the latter, these bearings

  26, 27 are dependent on the support 15.

  Furthermore, beyond these bearings 26, 27, in which the shaft 25 is finally mounted free to rotate, it cooperates, through gimbals 28, 29, with drive shafts 30 31 connected pulleys or gables

  teeth 12, 13 to ensure the rotational drive.

  It should be noted, in addition, that on the shaft 25, located under the drive drum 19, is mounted integrally or in rotation at least one driven roller 32 intended to cooperate with a friction drive element 24 in particular to guarantee Preferably, both the driven roll 32 and the friction drive members 24, 24 A are made of a material

  relatively adherent, for example rubber.

  Ainsien function of the direction of rotation given to the drum motor 19,

  one obtains, by means of said transmission means 18.

  the opening or closing of the overhead door 2 However, arises, more particularly, the problem of locking the opening 7 once closed

on the frame 3.

  Also and according to the invention, the electromechanical control device 1 comprises at least one drive shoe 33 33 A attached to the upper edge 34 and the inner side 35 of said opening 7 and adapted to cooperate directly with the drive means 17 of the geared motor assembly

  14, more particularly in initial phase respectively, final.

  opening and closing of the overhead door 2 Finally these initial phases, respectively final opening and (closing

  correspond to the locking and unlocking phases of the opening 7 ,.

  However, and in such a way as to allow the driving pads 33 33 A to cooperate with said drive means 17, the electromechanical control device 1 is further provided with disengaging means 36 actuated through said drive pads 33. 33 A, precisely, to disengage the geared motor unit 14 transmission means 18 during this initial phase, respectively, final opening and closing. According to a preferred embodiment, these disengaging means 36 consist of elastic connection means 37 connecting the bearings 26, 27, corresponding to the shaft 25 to the bearings 22, 23, supporting the motor drum 19, a single bearing play. 22, 23 or 26, 27 being mounted rigidly on the cross member 38 corresponding to the support 15 and fixed on the inner face 16 of the lintel 6 In fact, it is, through this relative mobility between

  the bearings 22, 23 of the motor drum 19 and the bearings 26 27 of the shaft 25.

  to allow the release of the drive means 1, with respect to the transmission means 18 by stressing elastic means

  likely to bring the elements back to their engagement position.

  In the context of the embodiment illustrated in the drawings and more particularly in FIG. 2, the case where the bearings 22, 23 corresponding to the motor drum 19 are made integral with said cross-member 38, while the bearings are retained. 26, 27, supporting the shaft 25 are made movable through the elastic connection means 37 connecting them, precisely, to said bearings 22, 23 Note that this mobility takes place, especially in the vertical direction so that in case of intervention of the drive shoes 33, 33 A or manual control means 39, said shaft is able to deviate from the motor drum 19 so that its driven roller 32 no longer adheres to the element of corresponding friction drive 24. In this regard, it should be noted that on the shaft 25 are further mounted to rotate freely, rollers 40, 40 A to the outside diameter 41 barely less than the diameter 42 of the driven roller or rollers 32. are arranged in correspondence with the training elements by

  friction 24 24 A of the drum motor 19.

  Thus, when closing the overhead door 2 (see FIGS. 4A, 4B 5A, 5B) or the drive pads 33, 33A in the form of a blade 43 disposed substantially perpendicular to the plane of the opening 7 and oriented towards the frame 3 are inserted between said friction drive elements 24, 24 A and the rollers 40 40 A. This results via the disengaging means 36 and particularly the elastic connection means 37, the spacing of the shaft 25 relative to the motor drum 19 su Ir a distance 44 of said blade 33 In fact, this gap is sufficient to prevent the adhesion of the friction drive element (s) 24 su I, the roll or rolls 32 The result is a stop of

  driving the transmission means 18 while the motor unit

  Reducer 14 continues to operate so that through the cooperation of the friction drive elements 24 24 A on said drive pads 33, 33 A, a direct drive of the opening 7 is obtained. the application of the latter against the frame 3 A sensor equipping, advantageously the electromechanical control device 1

  detects this closing position of the overhead door 2.

  In this respect, it should be noted that in this closed position, on the one hand, the cooperation of the drive shoes 33, 33 A with the friction drive elements 24, 24 A is maintained, particularly in the Through thrust exerted by the rollers 40, 40 A and, on the other hand, the use of a motor provided with a mechanical brake, gives this combination of elements the structure of locking means. Unlocking can only be obtained under these conditions by operating the geared motor unit 14 or by intervening on the manual control means 39 able to actuate the disengaging means 36 to further move the shaft 25 away from the drum. motor 19 and finally, remove or reduce the adhesion of the drive pads 33 33 A on the friction drive members 24, 24 A under the action of the pressure of the rollers

40 A.

  According to a preferred embodiment the manual control means 39 of the disengagement means 36 consist of an eccentric 45 disposed between the bearings 22, 23 and 26, 27 and whose rotation, provided through a control rod 46 and an actuating lever 47 causes the spacing of the bearing 22 with respect to the bearing 26, respectively, from the bearing 23 with respect to the bearing 27. As regards the elastic connecting means 37, these consist mainly of by at least one spring 48 prestressed to keep the bearings 22, 23 closer to the bearings 26, 27 However, appropriate guide means 49 can further complement these elastic connection means 37 to control in their movement, the bearings 26 , 27 or, as the case bearings 22, 23 Moreover and according to another embodiment, these guide means 49 may be replaced by hinge means connecting the mobile bearing clearance itself. t to the cross member 38, or to the fixed bearing play In fact, here again, such articulation means have the function of

  guiding said movable bearings in their displacement.

  It will be observed that the present invention has the advantage that in the case of manual disengagement, the geared motor unit 14 is completely disengaged from the transmission means 18. This results in an opening and closing command.

  Manual closing of the overhead door 2 considerably facilitated.

  Reference is made, in particular, to FIG.

  Finally, it should be noted that the longer the blade 43 of the drive shoes 33, 33 A is long, that is to say extends forward of the opening 7 rather we will obtain a direct drive of this opening 7 via the geared motor unit l 4 and less the operation of the electromechanical control device will be dependent

  obstacles that can meet the opening 7 in the final phase of closure.

  However, by further extending this blade 43, it is necessary to provide in the lintel 6, corresponding to the frame 3, and, perhaps, in the lintel 50 in the masonry, an opening in which can engage the front end 51 of said blade 43 in the closed position and locking the door, Note that this front end 51 can be

  slightly tapered so as to limit the notching of the lintels 6 and 50.

  In addition, consideration should be given to the particular situation where, because of a low ceiling, the upper edge of lintel 6, corresponding to frame 3, is only slightly distant from the ceiling 52. blade of great length 43 associated with the drive shoe 33, 33 A, can create discomfort and, more particularly, the closing of the overhead door 2 In particular, the front end 51 of the blade 43 can abut against the ceiling 52 and can prevent the opening and / or closing of the opening 7 In such a situation, said blade 43 can be provided pivoting about a horizontal axis of rotation, at its rear end 53 so that in progress opening of the rocker door 2, it is able to fold towards the opening 7 under the action of a cam 54 disposed in the ceiling 52 of the construction Finally, this cam 54 can prevent that the front end 51 of the blade 43 corresponded nt to the drive pads 33, 33 A stop form coming to cooperate with the ceiling 52 and is not particularly opposed to the closing of the opening 7 Such a blade 43 is still subject to elastic return means allowing him to regain his initial position

after leaving the cam 54.

  Thus, the present invention makes it possible, in spite of great simplicity, to answer all the problems encountered in the past through known electromechanical control devices. This simplicity is, of course, a guarantee of reliability, which is not a vain quality. in the context of

  swing doors 2 o the concept of security against burglary.

  Although the invention has been described with respect to a particular embodiment, it is understood that it is in no way limited and that various modifications of shapes, materials and combinations thereof can be made. various elements without departing from the scope and spirit of the invention 1

Claims (9)

claims   1 Electromechanical control device (1) for a tilting door (2), in particular for a garage door, comprising an opening (7) balanced by lateral counterweights (8, 9) sliding in vertical rails and connected to said opening ( 7) by cables or chains (10, 11) wound, partially, around pulleys or toothed gears (12, 13) driven by means of transmission means (18) cooperating with drive means (17). ) of a geared motor assembly (14), characterized in that it comprises one or more drive shoes (33, 33 A) attached to the opening (7) and able to cooperate directly with the means driving (17) of the geared motor assembly (14) in the initial phase, respectively, final, opening and closing of the door (2), corresponding to the locking and unlocking phases of the opening (7), said electromechanical control device (1) being, moreover, disengaging means (36) actuated through the   or driving pads (23, 33 A) for disengaging the motor assembly   gearbox (14) of said transmission means (18) during this phase   initial, respectively, final opening and closing.   2 electromechanical control device according to claim 1, characterized in that the drive means (17) of the geared motor assembly (14) are in the form of a motor drum (19), with an axis of rotation horizontal and maintained free in rotation, at its ends (20, 21), in bearings (22, 23) associated with a support (15) located on the upper lintel (6) of the frame (3) this drum ( 19) being driven by an electric motor provided with a mechanical brake and associated with a gearbox, on the outer periphery of the drive drum (19) being mounted one or more friction drive elements (24, 24A) such that rubber straps for cooperating with said means of transmission (18).   3 Electromechanical control device according to claims 1 and   2, characterized in that the transmission means (18) consist of a shaft (25) parallel to the motor drum (19) and passing through, from one side, bearings (26, 27) in which it is mounted in rotation, so as to cooperate with driving shafts (30, 31) connected to the pulleys or toothed gears (12, 13) in order to drive it in rotation, on said shaft (25) being mounted, on the one hand, integral in rotation, at least one driven roller (32), in particular, rubber, intended to cooperate with a friction drive element (24) and secondly, free rotation of the rollers (40); , 40 A) to the outer diameter (41) barely smaller than the diameter (42) of the driven roll or rollers (32), these rollers (40, 41) being arranged in correspondence with said friction drive members   (24, 24 A) of the motor drum (19).   Electromechanical control device according to claims 1 to 4   3, characterized in that the disengaging means (36) are constituted by elastic connecting means (37) connecting the bearings (26, 27), corresponding to the shaft (25) of the transmission means (18) to the bearings (22, 23) supporting the motor drum (19) a single bearing play (22 23) or (26, 27) being mounted rigidly on a cross member (38) corresponding to the support (15) and fixed on the face internal part (16) of the component lintel (6), in part, the frame (3).   Electromechanical control device according to claims 1 to 5   4, characterized in that the one or more drive shoes (33, 33 A) consist of blades (43) arranged substantially perpendicular to the plane of the opening (7) and oriented towards the frame (3), in the final phase of closing the overhead door (2) these blades (43) inserted between said friction drive elements (24, 24 A) of the drive means (17) and the rollers (40, 40 A) corresponding to the transmission means (18) for causing the spacing, via the disengaging means (36) of the shaft (25) relative to the motor drum (19) and prevent the adhesion of the or driven rollers (32) on the elements   friction drive (24, 24 A).   Electromechanical control device according to claim 1.   characterized in that it comprises means for locking the opening (7) against the frame (3) constituted by the cooperation, in the closed position of the overhead door (2), of the drive shoes (33, 33 A) with the drive means (17) of the geared motor assembly (14) which comprises a mechanical brake actuated when the electric motor is not stressed. 7 Electromechanical control device according to claim 1, characterized in that it comprises manual release and unlocking control means (39) acting on said disengaging means (36) to first undo the cooperation between the transmission means (18) and the drive means (17) and, on the other hand, between said drive means (17) and the drive shoes (33, 33 A) associated with the opening (7).   Electromechanical control device according to claims 2, 3   and 7, characterized in that the manual disengagement and unlocking control means (39) consist of an eccentric (45) disposed between the bearings (22, 23) and (26, 2,) respectively corresponding to the drum (19) and to the shaft (25), the rotation of this eccentric (45) being ensured through a control rod (46) and a lever of maneuver (47).   9 electromechanical control device according to claim 4, characterized in that the elastic connecting means (37) consist of at least one spring (48) prestressed to maintain close bearings (22, 23) corresponding to the drum motor (19) bearings (26 27) supporting the shaft (25) these elastic connecting means (37) being completed either by guide means (49) or by hinge means for controlling, in their moving the bearings (26, 27)   or, as the case may be, the bearings (22, 23).   Electromechanical control device according to claim 5, characterized in that the front end (51) of the blades (43) corresponding to the drive shoes (33 33 A) penetrates, in the closed position of the overhead door (2). , at least in an opening made   in the lintel (6) of the frame (3).   11 Electromechanical control device according to claim 5, characterized in that the blade (43) corresponding to the drive shoes (33, 33 A) is, on the one hand, provided pivotally about a horizontal axis of rotation to height of its rear end (53) to allow it to fall back towards the opening (7) under the action of a cam (54) disposed on the ceiling (52) of a construction accommodating said overhead door (2) and, on the other hand, subjected to elastic return means allowing it to return to its initial position after having left the cam (54).