FR2840012A1 - ELECTROMECHANICAL DRIVE DEVICE FOR ROLLER SHUTTER - Google Patents

Abstract

Electromechanical drive device for a roller shutter comprising a gear motor (2) adapted to drive in rotation a winding tube (3) arranged along an axis (X) and around which the shutter apron, the motorcycle is wound or unwound. -reducer (2) being housed inside the winding tube (3), and an electrical switch box (11) adapted to power the geared motor (2) on receipt of a control signal from opening or closing of the shutter. A first end (6) of the geared motor comprises electrical connection means (13) and mechanical coupling means (14) adapted to be engaged with complementary connection (15) and coupling (16) means arranged on a face of the switching housing (11).

Description

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  ELECTROMECHANICAL DRIVE DEVICE

FOR T ROLLING SHUTTER

  The present invention relates to an electromechanical drive device for wheeled rollers comprising a gearmotor adapted to drive in rotation a winding tube arranged along an axis X and around which the apron of the theft, and an electrical switch box adapted to supply the gearmotor upon reception of a signal

  command to open or close the flaps.

  More particularly, the invention relates to a drive device in which the gear motor is

  fits inside the winding tube.

  The fact of mounting the gear motor inside the winding tube of the flights has various advantages. It allows in particular to reduce the size of the drive device which is generally housed in a trunk. The geared motor is generally in the form of a tube, called the motor tube, inside which the electric motor, the reducer and most often an electronic circuit for controlling the electric motor. Thus, the gearmotor manufacturer can deliver a monobloc assembly intended to be slid inside the winding tube of the flights. On the other hand, during the mounting of the flights, the installer or assembler must mechanically fix one end of the gear motor, for example using screws, then electrically connect the gear motor by connecting, to the electrical installation of the

  building, free wires coming out of the gear motor.

  This operation is not always easy because the wires can be difficult to access when the gear motor is fixed. In addition, the installer must generally make a hole in the end of the boot in order to bring out the wires from the gear motor and install a junction box outside the boot. The installer must then test the operation of the voles to verify that the wires

  of the gear motor is correctly connected.

  The present invention aims in particular to simplify these mechanical fixing operations and electrical connection of the gear motor by proposing a quick mounting system and guaranteeing a connection

correct electric.

  To this end, a first end of the gear motor comprises electrical connection means and mechanical coupling means adapted to be engaged with connection means and complementary coupling means arranged on one side of the switching boltier. Thanks to these provisions, the mounting of the geared motor is simpler for the installer because it is sufficient for it to mutually engage the coupling means.

  and the means of electrical connections.

  In preferred embodiments of

  ['invention, one can possibly have recourse in addition to one and / or the other of the following provisions: - the means of electrical connection and the means of mechanical coupling respective of the motor-reducer and the boltier of switching wind engaged simultaneously; - The electrical connection means and the respective mechanical coupling means of the gear motor and the wind switching bolt engaged in a translational movement substantially parallel to the winding axis;

  - the mechanical coupling means of the motorbike

  gearbox and wind switch bolt adapted to prevent any translation in a direction perpendicular to the winding axis of the first end of the gear motor relative to the switch bolt; - The mechanical coupling means of the gear motor and the switch box include locking means adapted to prevent any translational movement of the gear motor relative to the switch box along the winding axis; - The electrical connection means of the gear motor and the switching bolt include male pins and female pins arranged along the winding axis and adapted to prevent rotation of the gear motor with respect to the switching box around the winding axis; - The mechanical coupling means comprise coding means guaranteeing the good correspondence of the electrical connection means of the gear motor with the electrical connection means of the switch box during their mutual engagement; - the gear motor is mounted in a motor tube arranged concentrically inside the winding tube, a first end of the motor tube comprising the electrical connection means and the mechanical coupling means of the gear motor, a second end of the motor tube comprising a drive ring for the winding tube;

  - the mechanical coupling means of the motorbike

  reducer comprise a housing delimited by the internal contour of the first end of the motor tube and by a bottom arranged inside the motor tube, and the mechanical coupling means of the switch box comprise a projecting cylindrical element and adapted to be engaged in said housing; - The cylindrical element of the switch box has a retractable pin implanted radially and adapted to cooperate with a practical hole in the wall of the first end of the motor tube;

  - the means of electrical connection of the motorcycle

  wind reducer formed by male pins arranged on the bottom of the housing and extending along the winding axis, the electrical connection means of the switch box being formed by s female pins are complementary and emerging on one side end of

['cylindrical element.

  Furthermore, the invention also relates to a rolling flight box comprising a centering device as defined above, in which the switch box is integral with a first end of the box, and in which the tube winding has a second end mounted freely rotatable around the X axis on a second end of the trunk, located so

opposed to the first.

  In a preferred embodiment of the rolling flight box, the switch box has electrical connection terminals accessible by a practical opening in the external wall of the first

boot end.

  Other features and benefits of

  the invention will appear during the description which follows

  follow given by way of nonlimiting example with reference to the accompanying drawings in which: - Figure 1 is an exploded perspective view of an electromechanical drive device for rolling wheels according to the invention; - Figure 2 is an enlarged perspective view of an electrical switch box of the drive device shown in Figure 1; - Figure 3 is a partial perspective view of a gear motor of the drive device shown

in Figure 1.

  In the various figures, the same references have been kept for designating identical or similar elements. The electromechanical wheel alignment device shown in FIG. 1 comprises a geared motor 2 adapted to entrain in rotation a winding tube 3 arranged along a horizontal axis X. The flight deck, not shown, is intended to be fixed on the winding tube 3 so as to be wound or unwound according to the direction of rotation of the geared motor. The length of the winding tube is chosen so that

  match the width of the deck.

  The motor and the reducer of the geared motor 2 preferably wind agencies in a tube 4, called motor tube,

  which is intended to be slid into the winding tube 3.

  A bearing ring 5 is mounted freely rotating near a first end 6 of the engine tube. The bearing ring 5 carries a rim 7 radially oriented towards the outside which comes into abutment with a first end 8 of the winding tube so as to limit the engagement of the driving tube 4 in the winding tube 3. The second end 9 of the engine tube has a ring

  10 integral with the output shaft of the motorbike

  reducer and engaging with the interior of the winding tube 3 so as to entrainer it in rotation. The centering device also comprises an electrical switching bolt 11 adapted to power the gear motor 2. Inside the switching bolt 11 is arranged an electronic device, known per se, which makes it possible to power the motor- reduction following the reception of a command signal to open or close the flights. In the embodiment shown, the opening or closing control signal is transmitted to the switching terminal 11 by a mechanical member 12, such as a pull tab. However, the control signal can be transmitted to the boltier in a different way, and in particular by infrared or wireless transmission. The switching bolt 11 can also include a system for managing the upper and lower limit switches of the apron. This limit switch management system can be implemented using an electromechanical device which opens a switch when the torque exerted by the reduction motor exceeds a certain threshold, or using the

  measurement of the intensity of the current flowing in the moto-

  reducing, this measurement being transmitted to an electronic circuit capable of cutting the power supply to the motor when the increase in intensity corresponds to the blocking of the motor. But we can also use contactors

  arranged on the flight path to manage the stop of the motorbike

  reducer when the apron reaches the end of the stroke.

  According to the invention the first end 6 of the motorbike

  gearbox 2 includes electrical connection means 13 and mechanical coupling means 14 adapted to be engaged with complementary electrical connection means 15 and complementary mechanical coupling means 16 agencies on one side 17 of the boltier de

switching 11.

  The mechanical coupling means 14 of the gear motor comprise, in the embodiment shown, a housing 18 delimited by the internal contour 6a of the first end 6 of the engine tube and

  by a bottom 19 agency inside the engine tube 6.

  The mechanical coupling means 16 of the switch box 11 comprise a projecting cylindrical element arranged on the face 17 of the box. This cylindrical element 20, forming a male element, has a shape complementary to the housing 18 so as to be able to be engaged in the mechanical coupling means 14 of the gear motor according to an exe translation movement X.

  The electrical connection means 13 of the motorcycle

  wind reducer formed by male pins 21 arranged on the bottom 19 and extending along the winding axis X. Thus arranged in the housing 18, the male pins wind

protected from shocks.

  The electrical connection means of the switch box 11 are formed by female pins 23 of shapes complementary to the male pins 21 and arranged on an end face 24 of the cylindrical element 20. Thanks to this arrangement, the electrical connection means (13,15) can be engaged simultaneously with the mechanical coupling means by performing a translational movement along the X axis, which limits the operations to be performed by the installer / or by

  the assembler if the parts are prepared in the workshop.

  It will be noted that the engagement of the pins (21,23) of the electrical connection means (13,15) advantageously makes it possible to block the rotation of the housing 18 relative to the cylindrical element 20 of the coupling means

mechanical 16.

  In the example described, 3 padres of pins are used to supply a motor operating on alternating current, but the number of padres can be variable. We can in particular reduce the number of padres of pins to 2

  if a DC motor is used.

  The engagement of the mechanical coupling means 14 of the gear motor 2 in the mechanical coupling means 16 of the switch box 11 makes it possible to block any translational movement, in a direction perpendicular to the winding axis X, of the first end 6 of the gear motor with respect to the

switching 11.

  In order to also prohibit any translational movement of the geared motor 2 relative to the housing 11 along the winding axis X, the mechanical coupling means (14, 16) can also include locking means. In the embodiment shown, the wind locking means formed by a retractable pin 25 implanted radially in the cylindrical element 20 and by a practical hole 26 in the wall of the first end 6 of the driving tube. The engagement of the pin 25 in the hole 26 makes it possible to block any translation along the winding axis X, moreover it forms a coding device which guarantees the good correspondence of the electrical connection means 13 of the gear motor with the connection means electrics 15 of the switching boltier. Thus, during assembly of the operating device, the installer only has to engage the end of the motor tube 6 on the cylindrical element 20 of the switching bolt to ensure the mechanical fixing and the electrical connection of the gear motor to the bolt switching 11. By verifying that the retractable pin 25 is properly engaged in the hole 26, the installer ensures that the electrical connection pins have not been inverted. Note also that having the electronic switching device in a bolt independent of the gear motor and located outside the winding tube, allows to limit the length of the motor tube 4. Thus, the entrainment device according to the can be used for small shutters

width.

  The operating device is preferably mounted in a trunk comprising a first end piece 27 and a second end piece 28, visible in FIG. 1. Longitudinal walls, not shown, extending between the

  end caps (27,28) complete the structure of the boot.

  In this case, the second end 29 of the winding tube 3 comprises a cylindrical end piece 30 which engages in a tubular element 31 integral with the second end piece 28 of the trunk to form a rotary bearing of axis X. The switching boltier 11 is fixed to the first end piece 27 of the trunk, for example using 4 screws passing through holes 32 provided for this purpose. The fixing of the bolt clamp 11 on the end piece 27 is advantageously carried out in the factory in order to limit the mounting operations during

the installation of the voles.

  The switch box 11 advantageously includes electrical connection terminals 33 to facilitate its connection to the electrical installation of the building. An opening 34 can be provided in the wall of the first end piece 27 of the trunk to access the connection terminals 33 and possibly a voles 35 to hide the opening 34. Thus the connection of the centering device is simplified and the installer does not require no more need to make a hole through the end piece 27 to bring out the supply wires from the housing

  switching to an electrical bypass box.

  Of course this embodiment is in no way limiting, it is in particular possible to modify the shape of the mechanical coupling means or reverse the position of the male and female elements of the electrical connection means and / or mechanical coupling means.

Claims (13)

  1. Electromechanical drive device for rolling flights comprising a geared motor (2) suitable for rotating a winding tube (3) arranged along an axis (X) and around which the flight deck is wound or unwound, said gear motor (2) being housed inside the winding tube (3), and a bolt   electrical switching (11) suitable for supplying the motor   reducer (2) on receipt of a command signal to open or close the flights, characterized in that a first end (6) of the gear motor comprises electrical connection means (13) and means for mechanical coupling (14) adapted to be engaged with complementary connection (15) and coupling (16) means arranged on one face (17) of the bolt switching (11).   2. entrainment device according to claim 1, wherein the electrical connection means (13,15) and the mechanical coupling means (14,16) respective of the gear motor (2) and the switching bolt (11) wind engages simultaneously.   3. entrainment device according to claim 1 or 2, wherein the electrical connection means (13,15) and the mechanical coupling means (14,16) respective of the gear motor (2) and the switching bolt ( 11) wind engaged in a translational movement substantially parallel to the winding axis (x). 4. Entrainment device according to any one   of claims 1 to 3, wherein the means for   mechanical coupling (14,16) of the gear motor (2) and the switching bolt (11) wind adapted to prevent any translation in a direction perpendicular to the winding axis (x) of the first end (6) of the   gear motor with respect to the switching bolt (11).   5. Entrainment device according to any one   of claims 1 to 4, wherein the means for   mechanical coupling (14,16) of the gear motor (2) and of the switching bolt (11) include locking means (25,26) adapted to prevent any movement of translation of the gear motor relative to the bolt   switching along the winding axis (x).   6. Entrainment device according to any one   of claims 1 to 5, wherein the means for   electrical connection (13,15) of the gear motor (2) and the switch bolt (11) have male pins (21) and female pins (23) arranged along the winding axis (X) and adapted for prohibit the rotation of the gear motor relative to the switching bolt around of the winding axis (x).   7. Training device according to any one   of claims 1 to 6, wherein the means for   mechanical coupling (14,16) include coding means (25,26) ensuring the good correspondence of the electrical connection means (13) of the gear motor (2) with the electrical connection means (15) of the boltier   switching (11) during their mutual engagement.   8. Entrainment device according to any one   of claims 1 to 7, in which the gear motor (2)   is mounted in a motor tube (4) arranged concentrically inside the winding tube (3), a first end (6) of the motor tube (4) comprising the electrical connection means (13) and the coupling means mechanical (14) of the gear motor (2), a second end (9) of the motor tube (4) comprising a ring   drive (10) of the winding tube (3).   9. entrainment device according to claim 8, wherein the mechanical coupling means (14) of the gear motor (2) comprises a housing (18) delimited by the internal contour (6a) of the first end (6) of the motor tube and by a bottom (19) arranged inside the motor tube (4), and in which the mechanical coupling means (16) of the switch box (11) comprise a cylindrical element (20) projecting and adapted for to be engaged in said housing (18).   10. entrainment device according to claim 9, in which the cylindrical element (20) of the switching bolt (11) comprises a retractable pin (25) implanted radially and adapted to cooperate with a hole (2 6) practical in the wall of the first end (6) of the engine tube.   11. entrainment device according to claim 9 or 10, wherein the electrical connection means (13) of the gear motor (2) wind formed by male pins (21) agencies on the bottom (19) of the housing (18 ) and extending along the winding axis (X), the electrical connection means (15) of the switching bolt (11) being formed by complementary female pins (23) and opening onto an end face ( 24) of the cylindrical element (20).   12. Rolling flight box comprising a centering device according to any one of the   claims 1 to 11, wherein the boltier of   switching (11) is integral with a first end piece (27) of the trunk, and in which the winding tube (3) has a second end (29) mounted freely rotatable around the axis (X) on a second end piece (28) of the trunk   opposite to the first.   13. Rolling flight box according to claim 12, in which the switching bolt (11) comprises electrical connection terminals (33) accessible by an opening (34) formed in the wall of the first end piece.