FR2824359A1 - DRIVE ASSEMBLY WITH A FLOATING MOTOR WITH TWO MECHANISMS, IN PARTICULAR FOR FLAPS - Google Patents

Abstract

The drive for a shutter door has two parallel axes (20) to open and close the two leaves, with the drive assembly between the axes. The drive has an electric motor (24) with its armature (26) connected to one of the shafts and an inductor (28) connected to the other. The electric motor can be integrated into a motor-gearbox itself mounted in a tubular housing (32). The motor-gearbox output shaft is connected to the armature.

Description

partially to the motor organs.

'2824359

  FLOATING MOTOR DRIVE ASSEMBLY OF TWO

  MECHANISMS, ESPECIALLY FOR FLAPS

  The present invention relates to a floating motor drive assembly of two mechanisms, more particularly suitable for

swing shutter operation.

  Casement shutters are preferred for closing the openings of dwellings because of their aesthetics and their great safety. A casement shutter generally comprises at least one panel, called a leaf, mounted for rotation about a vertical axis disposed substantially in line with one of the vertical uprights of the opening. Depending on the style and dimensions of the opening, a flap may include one or two leaves hinged at the level of the amount (s) of the opening, each leaf consisting of one or more

  several panels hinged together along vertical axes.

  The present invention is more particularly intended for two-leaf shutters, each of them being attached to the upright.

opening correspondent.

  Devices are already known for automating the opening and closing of the flaps of a shutter. They generally include two vertical axes, rotated, on each of which is attached an arm connected to the corresponding leaf. Thus, the opening or closing of the leaves is obtained by rotating the vertical axes in the appropriate direction, these

  the latter causing the wings to pivot through the arms.

  For economic reasons, the two vertical axes are rotated by a single geared motor whose output pinion is capable of meshing on a pinion attached to a shaft at the end of which are

  arranged the vertical axes connected to said shaft by angle references.

  However, this arrangement is not fully satisfactory in

because of its size.

  - A first improvement is described in request FR - 00.04866 in the name of the requester. According to this teaching, the drive assembly comprises: - an electric motor comprising a stator in which a rotor is able to be rotated, said rotor being provided with an output shaft, - - a tubular transmission member containing said electric motor and to which are coupled, respectively at each end, the two bevel gears, - means for kinematically connecting the output shaft of the rotor to the tubular member, and - an element for fixing the stator passing through the one of the ends of the tubular member for fixing the stator outside said ends of said

tubular organ.

  Thus, this solution makes it possible to obtain a relatively compact drive assembly by reducing the fixing points, the latter being at

  number of three, one for each angle gear and one for the stator.

  According to this solution, the stator is immobilized in

  rotation, the rotor output shaft being connected to the two bevel gearboxes.

  As for the previous assemblies, it is necessary to provide, to obtain the opening and closing offset of the two leaves, an elastic rotation connection, a helical spring being interposed between the output shaft of the rotor and one of the two angle references. For this reason, this arrangement, like the previous solutions, requires a number of parts

  relatively high and a relatively complex assembly.

  Also, the present invention aims to overcome the drawbacks of the prior art by proposing a drive assembly of two parallel axes, more particularly intended for two-leaf shutters, simple, compact, requiring only a reduced number of parts and with a minimum number

attachment points.

  To this end, the object of the invention is a drive assembly of two parallel axes, in particular used to generate the opening or closing movement of two leaves, the said assembly being disposed between said axes, characterized in that '' it includes an electric motor comprising an armature kinematically connected to one of the axes and an inductor connected

kinematically to the other axis.

  According to a preferred embodiment, the electric motor is integrated in a geared motor, itself introduced into a tubular element, the output shaft of the geared motor, kinematically linked to the armature, being connected by means of a reference d angle to one of the axes and the outer casing of the gearmotor, kinematically read to the inductor, being integral with the tubular element, the latter being extended by an output shaft connected by

  I'intermediate an angle reference to the other axis.

  This arrangement makes it possible to reduce the number of fixing points to only two points arranged at each corner gear. Thus, the electric motor is mounted floating between the two vertical axes, neither the part corresponding to the stator usually, nor that corresponding to the rotor being

connected to a fixed point.

  On the other hand, this solution makes it possible to have alternating and not simultaneous leaf movements. Thus, the fact of operating only one leaf at a time makes it possible to reduce the power of the electric motor and consequently its dimensions, which contributes to improving the compactness of

I'ensemble.

  Preferably, the drive assembly comprises means of electrical supply comprising a static part provided with circular tracks, one for each phase, and a movable part kinematically linked to the inductor comprising brushes capable of ensuring electrical contact with the tracks. Thus, this type of electrical supply makes it possible to supply the

  motor whatever the situation, static or rotating inductor.

  In some cases, one of the leaves may have a covering blade at its free edge. Also, it is necessary to impose order

closing leaves.

  According to a first variant, the drive assembly comprises means for imposing the closing order of the leaves consisting of providing, at the kinematic chain corresponding to the leaf to be closed last, a torque to cause the closing movement of said clapper

most important.

  According to a preferred embodiment, it comprises braking means comprising at least one friction element capable of occupying two positions, a first in which it does not oppose the rotational movement of the kinematic chain corresponding to the leaf to be closed lastly, and a second position in which said friction element comes into contact with at least one of the elements of said kinematic chain

  so as to oppose the rotational movement.

  According to a second variant, the drive assembly comprises means for imposing the order of closure of the leaves consisting in providing

  leaf retaining means to close last.

  According to a preferred embodiment, the retaining means comprise a first stop disposed at right of the leaf to be closed last and capable of occupying two positions, a first retracted corresponding to the closed position of said leaf, and a second projecting position of so as to retain said leaf and a second stop disposed at right of the second leaf and capable of detecting the closed position of said second leaf so as to unlock the first stop so that it retracts and allows the complete movement of closing the leaf to to close

Lastly.

  The subject of the invention is also a double leaf shutter comprising

  a drive assembly according to the invention.

  Other characteristics and advantages will emerge from the description which

  represents a preferred embodiment, description given as

  by way of example only, with reference to the accompanying drawings in which: - Figure 1 is a perspective view of a shutter with two leaves, applied to a standing frame, equipped with a drive assembly according to the invention, and - Figure 2 is a schematic view in longitudinal section illustrating in detail the drive assembly. In FIG. 1, there is shown an opening 10 capable of being closed by a shutter comprising two leaves 12, each mounted to pivot about a vertical axis 14, materialized by hinges, arranged at

  each vertical edge 16 of the opening 10.

  The flaps 12 of the shutter are mechanically manceuvré by a drive assembly 18 capable of driving in rotation vertical axes 20 disposed at each edge 16, on each of which is attached an arm 22 whose free end is connected to the respective leaf 12, the drive assembly 18 being disposed between the vertical axes 20 and

preferably hidden by a housing.

  According to the invention, the drive assembly 18 comprises an electric motor 24 comprising an armature 26 kinematically connected to one of the vertical axes 20.1 as well as an inductor 28 kinematically connected to the other axis

vertical 20.2.

  In FIG. 2, the armature 26 is arranged inside the inductor 28,

  The armature corresponding to the rotor of the electric motor and the inductor to the stator.

  Of course, the same technical effect would be obtained by placing the armature at

outside the inductor.

  According to this arrangement, the electric motor is mounted floating between the two vertical axes, neither the part corresponding to the stator usually, nor that corresponding to the rotor being connected to a fixed point. Therefore, depending on the resistance to the rotational movement, the armature 26 is rotated relative to the inductor 28 which results in a rotation of the vertical axis 20.1 and the leaf 12.1 while the other vertical axis 20.2 connected to

Inductor 28 is stationary.

  Otherwise, the inductor 28 is rotated relative to the armature 26 and rotates the vertical axis 20.2,1 'other vertical axis 20.1

connected to the armature being immobile.

  According to a preferred embodiment and illustrated in FIG. 2, the electric motor 24 is integrated into a geared motor 30, itself introduced into a tubular element 32. According to this embodiment, the output shaft 34 of the geared motor, kinematically linked to the armature 26, is connected via a bevel gear 36 to the vertical axis 20. 1. In return, the outer carcass 38 of the gear motor 30, kinematically linked to the inductor 28, is integral of the tubular element 32, the latter being extended by a shaft of

  outlet 40 connected via a bevel gear 42 to the vertical axis 20.2.

  As a variant, the tubular element 32 can be used as an external carcass 38 of the geared motor, the tubular element and the carcass forming no

only one item.

  For example, the bevel gear 36, 42 are of the worm type. As a variant, the bevel gearboxes may be of the frustoconical pinion type or the like or be replaced by cardan shafts, their function being to transmit a rotational movement between two axes not

  coaxial, preferably arranged substantially at right angles.

  According to the invention, the drive assembly 18 is mounted floating, the output shafts 34, 40 being rotatably mounted in bearings provided at the level of the bevel gear 36, 42 respectively. Thus, the number of points

  fixing is reduced to two, the two bevel gear.

  The drive assembly also includes power supply means 44 which comprise, according to a preferred embodiment and illustrated by FIG. 2, a static part 46 comprising circular tracks 48, one for each phase, and a mobile part 50 integral with the tubular element 32 comprising brushes 52 capable of ensuring the

  electrical contact with tracks 48.

  It is obviously possible to envisage other means of electrical supply, their function being to ensure electrical continuity between a static element and a rotating element. Thus, this supply can be done through coals, and in the case of a DC motor

  through connections located at each end of said motor.

  According to the invention, the movements of the leaves are no longer simultaneous but alternate, one after the other. In fact, this arrangement defines two completely independent kinematic channels, one going from the inductor 28 to the corresponding leaf 12.2 comprising at the level of the friction links opposing the rotational movements, in particular at the level of the bevel gear 42, of the arm, of the connection between the arm and the leaf and of the hinges of the leaves 12.2, and the other going from the armature 26 to the corresponding leaf 1 0 12.1 also comprising friction at the connections opposing the rotational movements, in particular at the level of the bevel gear 36, of the arm, of the connection between the arm and the leaf and of the hinges of the leaves 12.1. Thus, one of the kinematic chains is set in motion

while the other is stationary.

  On the other hand, the fact of operating only one leaf at a time makes it possible to reduce the power of the electric motor and consequently its

  dimensions, which contributes to improving the compactness of the assembly.

  In a known manner, to improve the safety and the aesthetics of the shutter, one of the leaves comprises at its free edge a covering blade 54 capable of holding the other leaf closed and covering it.

  hide the gap between the two leaves.

  In this case, it is necessary to order at least the closing movement of the leaves, so that the leaf comprising the blade

  cover comes in closed position last.

  According to a first embodiment, the offset of the closing of the leaves can be obtained by design, by imposing on the kinematic chain of the leaf with the blade 54 a greater torque for

  cause the pivoting movement in the closed position of said leaf.

  This greater torque can be obtained by increasing the friction forces at the connections of the kinematic chain, for example at the level of the bevel gears or the hinges, or by having braking means 56 at the said chain. These means 56 may comprise at least one friction element 58 controlled by control means not shown, said element 58 being capable of occupying two positions, a first in which it does not oppose the rotational movement of the kinematic chain , and a second position in which it comes into contact with at least one of the elements of the kinematic chain, for example

  the tubular element 32, so as to oppose the rotational movement.

  Depending on the case, the brake control means can be of the electrical or mechanical type. By way of example, in the latter case, it is possible to envisage a friction element 58 in contact at rest with one of the elements of the kinematic chain of the leaf 12.1 to be closed last, said element 58 being mechanically connected to a lever capable of being actuated by the other leaf 12.2 and of occupying two states, the first in which it keeps the friction element 58 in contact when the second leaf 12.2 is not in the closed position and a second state in which it spreads the friction element 58 when the second leaf 12. 2 is in the closed position. According to the invention, it is possible to arrange the braking means in line with any element of at least one of the kinematic chains, going from the drive assembly to the leaf, also including

  The articulation materialized by the hinges of the leaf.

  According to a second embodiment, it is possible to obtain the offset of the closing of the leaves by disposing, in addition to the drive assembly, means 60 for retaining the leaf provided with the

cover blade 54.

  An exemplary embodiment of the means 60 is illustrated in FIG. 1. They are in the form of a control for closing the hinged door, disposed in the upper part of the opening 10. This control comprises a first stop 62 disposed at the right of the leaf 12 with cover blade and capable of occupying two positions, a first retracted, not shown, corresponding to the closed position of the leaf, and a second projecting position so as to retain the leaf 1 2.1 in order to allow movement for closing the other leaf 12.2, as well as a second stop 64 disposed in line with the other leaf 12.2 and capable of detecting the closed position of said leaf so as to unlock the first stop 62 so that it retracts and allows the full movement of

leaf closure 1 2.1.

  In this case, it is noted that the movement of the leaves 12 is random. Thus, in the most unfavorable case, if the closing movement of the leaf 12.1 is triggered first, the latter pivots so as to come into contact with the first stop 62. During this movement, the armature 26 of the assembly drive 18 pivots relative to the inductor 28. As soon as the leaf 1 2.1 is in contact, the torque to generate its pivoting movement increases and becomes greater than that necessary to rotate the leaf 12.2, so that c 'is the inductor 28 which starts to pivot relative to the armature 26 which becomes immobile. As soon as the leaf 12.2 is in the closed position, it acts on the second stop 64 which triggers the retraction movement of the first stop 62. At this moment, the leaf 12.2 being in stop, the torque to generate its pivoting movement becomes greater to that of the movement of the leaf 12.1, so that it is again the armature 26 which pivots relative to the inductor 28 which becomes stationary,

  causing complete closure of the leaf 12.1.

  In certain cases, it is preferable to order the opening order of the leaves or to be able to immobilize them in a partially open position. To this end, according to another improvement, braking means can be provided at each kinematic chain, so as to impose the order of opening and closing of the leaves and / or so as to

  immobilize in intermediate positions.

  It can be noted that the arrangement ensuring the offset of the movements of the leaves no longer processes different reducer models for the two vertical axes, nor a compensating spring. In fact, this offset results directly from the fact that the leaves have alternating movements, the armature and the inductor alternately playing the reference element with respect to which the other element pivots. Thus, the number of parts of the drive assembly is less which contributes to making it

  simpler and reduce its production cost.

  The drive assembly 18 also includes electrical control elements capable of triggering the starting or stopping of the engine and any braking means. These are not described in detail since they are not the main object of the present invention

  and are within the reach of the skilled person.

  Depending on the case, the drive assembly can be arranged between two bevel gears secured to the frame of the window frame of the carpentry, or to the masonry or else integrated into a horizontal crosspiece of a frame frame on which are attached the articulations materialized by the hinges

doors.

  Of course, the invention is obviously not limited to the mode of real i satio n rep resented and d described hereabove, but in co uvre with the co ntrai re to all the variants, in particular as regards the shape and dimensions of the leaves which may include one or more elements hinged together, arms which may be hinged or each include an end slidably mounted in a slide secured to the corresponding leaf, the gearmotor and angle references as well as on the structure of the means of

braking and / or restraint.

  Finally, the drive assembly can be used to drive in rotation non-simultaneously two axes, parallel or not. Thus, the drive assembly of the invention can be used to train in

  direct rotation of the leaf hinges.

0 2824359

1 1

Claims (10)

  1. Drive assembly of two parallel axes (20), in particular used to generate the opening or closing movement of two leaves (12), said device being disposed between said axes (20), characterized in that comprises an electric motor (24) comprising an armature (26) kinematically connected to one of the axes (20.1) as well as an inductor (28) connected   kinematically to the other axis (20.2).   - 2. drive assembly according to claim 1, characterized in that the electric motor (24) is integrated in a geared motor (30), itself introduced into a tubular element (32), the output shaft (34) of the gearmotor, kinematically linked to the armature (26), being connected by means of a bevel gear (36) to one of the axes (20.1) and the outer casing (38) of the gearmotor (30) , kinematically linked to the inductor (28), being integral with the tubular element (32), the latter being extended by an output shaft (40) connected by means of an angle gear (42) to The other axis (20.2).   3. drive assembly according to claim 1 or 2, characterized in that it comprises means (44) of electrical supply comprising a static part provided with circular tracks (48), one for each phase, and a mobile part (50) kinematically linked to the inductor (28) -comprising   brushes (52) capable of ensuring electrical contact with the tracks (48).   4. drive assembly according to any one of claims   1 to 3, characterized in that it comprises means for imposing the closing order of the leaves (12) consisting in providing, at the kinematic chain corresponding to the leaf to be closed last, a torque for   cause the closing movement of said larger leaf.   5. drive assembly according to claim 4, characterized in that it comprises braking means (56) comprising at least one friction element (58) capable of occupying two positions, a first in which it is not not oppose the movement of rotation of the kinematic chain - 2824359   1 2 corresponding to the leaf to be closed last, and a second position in which said friction element (58) comes into contact with at least one of the elements of said kinematic chain so as to oppose the rotational movement.   6 drive assembly according to any one of claims 1   to 3, characterized in that it comprises means for imposing the closing order of the leaves (12) consisting in providing retaining means (60) leaf to close last.   7. drive assembly according to claim 6, characterized in that the retaining means (60) comprise a first stop (62) disposed in line with the leaf to be closed last (1 2.1) and capable of occupying two positions, a first retracted corresponding to the closed position of said leaf, and a second projecting position so as to retain said leaf (12.1) as well as a second stop disposed in line with the second leaf (12.2) and capable of detecting the closed position of said second leaf (12.2) so as to unlock the first stop (62) so that it retracts and allows the complete movement of closing the leaf to close last (12.1).   8. Drive assembly according to any one of claims   1 to 7, characterized in that it comprises at each kinematic chain corresponding to the movement of the two leaves (12) braking means so as to impose the order of opening and closing of the leaves and / or so immobilizing said leaves in intermediate positions. 9. Shutter comprising two leaves (12) each mounted to pivot about a vertical axis (14) disposed at each vertical edge (16) of the opening (10), as well as a drive assembly (18) according to one   any of the preceding claims, capable of giving rise to   rotation of the vertical axes (20) arranged at each edge of the opening, on each of which is attached an arm (22) whose end   free is connected to the corresponding leaf. - 2824359   10. Component of the claim, characterized in that the drive assembly is deposited in a horizontal crosspiece of a frame