FR2646202A1 - Operating device for opening and closing at least one flap - Google Patents

Abstract

Operating device for opening and closing at least one flap 16 in front of an opening 24 with an active operating member 10 arranged in line with the support board 28 of this opening, characterised in that it comprises a horizontal curved arm 20 one of the ends 21 of which is mounted with free translational movement with respect to the flap 16 and the other end 23 of which is secured to a vertical shaft 64 carrying a wheel 62 which is rotationally driven by a worm 58 itself set in rotation by driving means, the longitudinal axis of the worm being substantially parallel to the plane of the opening.

Description

The present invention relates to a device for operating shutters, arranged outside and with internal control and an installation with several devices.

The operation of two shutters intended to close an opening such as a window must meet a certain number of requirements, in particular security.

In fact, the flaps must be able to be driven in rotation, around the hinges which support them, by a mechanical device and the force at opening must be sufficient to overcome the resistant forces due to the wind for example. On the other hand, the motive power must not cause injury to a human being who, for example, is trapped between the shutter and the wall which supports it. On the other hand the closing of two flaps must be done simultaneously and with a very precise adjustment so that there is a perfect adjustment to the closing. It is also necessary that the shutter drive mechanism allow movement to be stopped in any intermediate position of opening or closing of the shutters with locking in this position.

This shutter operating device must also be compact so as to be housed in line with the window support shelf.

There is known an automatic shutter opening and closing device described in French patent application Ns 2 435 588 which comprises a bevel gear with bevel gears which drives a first rotation shaft secured to the end of an arm of a compass while the other end of the other arm of the compass is fixed to the flap. In order to simultaneously operate the two shutters of the same window, this device provides for a connection by crossed cabals and pulleys of a second shaft parallel to the first and also provided with a compass identical to the first and connected to the second shutter. to rotate the first pinion of the bevel gear, which itself rotates '-es delx shafts, which ensures the opening or closing operation of the flaps according to the direction this rscatlon Printed in' the crank. In addition, this device comprises a mechanical stop notch which blocks the movement of the bevel gear in any position as soon as the force exerted on the crank is interrupted.

Such a device which uses a compass does not allow an opening to 1800 of the flaps, moreover the blocking in the intermediate position is ensured by a mechanical part which acts directly on the bevel gear offering no security in the event of breakage.

No adjustment of the synchronization of the closing of the two valets is provided and the security at the opening or at the closing is not provided either, only the user being likely to interrupt when an effort significant resistance 8 opposes & the maneuvering of the crank Or in certain cases the user will not be able to detect this resistant effort taking into account the significant reduction provided at the height of the bevel gear.

No electric motor, ion is provided for the operation of the shutters, which excludes simultaneous operation. when all the shutters of the windows of a room are closed or opened
The present invention overcomes the aforementioned drawbacks and proposes a device for maneuvering automatic shutters, & electric and / or manual control, zu authorizes the opening at 1800 of the shutters of an opening which allows a fine adjustment for adjustment on closing. , which can ensure a blocking in any intermediate position without additional mechanical brrane, which presents any guarantee of security during closing or opening maneuvers, which allows the maneuvering of the flaps even in the case of purple wind, the compactness being such that '' it can be integrated on the support shelf of an opening without affecting the aesthetics thereof, which allows an installation has several identical devices each mounted on an opening for operating the flaps of each of these openings with a command centralized and which includes means of detection of erasure,
To this end, the shutter operating device according to the invention, intended to close a window, comprises at least one active operating member placed in line with a shelf between the opening and the shutter and is characterized in that it comprises a horizontal curved arm, one end of which is slidably mounted relative to the flap and the other of which is integral with a vertical shaft carrying a wheel driven in rotation by a worm screw whose longitudinal axis is horizontal and oriented parallel to the plane of the window, this endless screw itself being rotated by motor means.

This device is also characterized in that the motor means comprise an electric geared motor with drive pinion. According to a particular characteristic of the invention, the operating device comprises a double angle gear å 900 disposed between the worm and the gear motor so that the axis of rotation of the motor and of the screw are parallel.

The operating device is characterized in that the double angle gear comprises a double pinion shaft, one of the ends of which is bored so as to cooperate with the end of a crank.

The operating device according to the invention is further characterized in that it comprises a passive operating member with a second worm and a connecting bar between the active and passive operating members, provided at each of its ends 9 '' a cardan joint, each of these joints being respectively connected to one of the ends of each of the worms of the active and passive members
According to a particular characteristic of the invention, the operating device comprises a control box for the electric motor with three push-buttons "open", "close" and "stop" plus a motor safety stop switch triggered by exceeding d '' a resistant effort threshold.

 The invention is also characterized by an installation comprising at least two shutter operating devices with centralized control unit for these operating devices.

 The invention is now described according to a mode of realization partIculIer with reference to the accompanying drawings rm which - Figure I shows a top view with partial section of a shutter operating device ave active and passive member according to the invention, flaps open position, - Figure 2 shows a top view of the active member in the shutter closed position, - Figure 3 shows a vertical elevation view with cutaway and partial section of the active member, - 4 shows a sectional view through a horizontal plane of the active operating member, and - Figure 5 shows a view of a variant with mechanical clutch safety.

The operating device according to the invention shown in FIG. 1 comprises an active operating member 1C, a passive operating member 12, a connecting bar 14, two flaps 16 and 18 as well as the associated curved arms 20 and 22. The active and passive members are arranged on either side of an opening 24 and more particularly between this opening and the external facade 26 against which the flaps 16 and 18 are folded down. The active and passive devices 10 and 12 are arranged at right of the support shelf 28.

As is better represented in FIG. 2, each curved arm, in this case the arm 20, comprises at its end a roller 30 movable in translation in a horizontal rail 32 and integral with the flap 16.

The flap 16 pivots about an axis 34 corresponding to the longitudinal axis of the hinges 36.

Between the open position shown in Figure 1 and the closed position shown in Figure 2, the flap pivots around the axis 34 of 180>.

The active actuator 10 is represented in section by a vertical plane in FIG. 3 and in section by a horizontal plane in FIG. 4. during active gane 10 comprises a housing 38, molded and comprising a first housing 40 in which is arranged the electric motor 42 and its reduction gear 44
The output shaft 46 of the reduction gear carries at its end a drive pinion 48 of conical type which cooperates with a double gear pinion gear 50. The axis of rotation of this angle gear is oriented perpendicular to the longitudinal axis 46 of the reducer outlet. The first pinion 52 cooperates with the output pinion 48 while the second pinion 54 cooperates with a crown 56 secured to an endless screw 58 whose longitudinal axis is parallel to the axis from tree 46.

The shaft 5 supporting the pinions 52 and 54 is bored at one of its ends to receive a crank end.

The worm screw 58 by its threaded part 60 cooperates with a helical gear 62 mounted coaxially with a vertical shaft 64 for driving the curved arm 20 as shown in FIG. 1.

The wheel 62 with helical toothing comprises at its lower part a protruding lug 66 which comes to bear in its two extreme positions against limit switches 68 and 70.

These sensors 68 and 70 are mounted on a plate 72, rotatably mounted around a projecting part 73 of the housing, coaxial with the shaft 64, this plate being adjustable thanks to an oblong hole 74 movable around a pin 76 , the plate being provided with a locking screw in position 78.

As shown in FIG. 1, the end 80 of the worm screw 58, the longitudinal axis of which is parallel to the plane of the opening 24, is fixed to one of the ends of a joint. & the gimbal 82, the other end of which is integral with one of the ends 84 of the connecting bar 14. The other end 86 of this bar also carries a hinge & the gimbal 88 fixed to the end 90 of a second worm 92 of the passive operating member 12. The connecting bar comprises two half-bars 94 and 96 threaded and connected to each other by a tapped adjustment sleeve 98. two locknuts 100 and 102 ensuring the locking of the sleeve with respect to the two half-bars after adjustment.

A cover 104, of safety and aesthetics, connecting the passive operating member to the active operating member is disposed around the connecting bar
The passive actuator comprises in addition to the worm 92 a helical gear 106 (not shown), integral with the shaft 108 for driving the curved arm 22, the end of which is slidably mounted relative to the flap 18.

The operating device according to the invention also comprises a control box (not shown) for the electric motor. This control box includes three push buttons '~ open', 'close' and 'stop'. The push buttons 'open' and 'close' are latching. In addition, the limit switches 68 and 70 are connected to the electric motor supply circuit 42.

In addition to the three push buttons, an engine safety stop switch is provided, the triggering of which is effected by exceeding a resistant force threshold detected on the engine 42.

Finally, the control unit includes a push-button for canceling to temporarily bypass the safety stop switch.

The operation of the operating device is now described. When the shutters are in the closed position, the user exerts a pressure on the push-button "opening", with engagement which causes a permanent supply of the electric motor 42 which drives via the reduction gear 44 the shaft 46 which puts in rotation the pinion 48, this pinion 48 driving by means of the angular gear 50 the crown 56 of the worm 58 and simultaneously the thread 60 of this worm rotates the wheel 62 which in turn drives the operating shaft 64 on which the curved arm 20 is fixed, the rotation of the shaft causes the rotation of the arm and simultaneously the displacement of the roller 30 in the rail 32, so as to cause the flap 16 to rotate 180 around the longitudinal axis 34 bringing the flap 16 from the position shown in FIG. 2 to the position shown in FIG. 1.

When the flap 16 arrives in the position represented in FIG. 1, that is to say the open position, the projecting lug 66 has described a portion of a circle such that it comes into contact with the end of the bear sensor 68 which cuts the power to the motor 42.

Simultaneously. the worm 58 rotates the connecting bar 14, so the worm s- which in turn rotates the wheel 106 solIdaire of the shaft 108 which also performs a rotation identical to that of the shaft 64 but in an opposite direction, if the curved arm 22 then brings the flap 18 sensibly against the facade 26.

When the user wishes to close the shutters, he actuates the "closing" push button which causes the electric motor 42 to be powered but with reverse polarity, which causes the drive shafts 64 and 108 to rotate in opposite directions with an identical angle of rotation until e ness the protruding lug 66 comes to conta # t of the limit switch 70 which cuts the power supply of the electric motor 42, the flaps are then in the closed position.

When the user wishes to partially open the shutters, he first presses the push open button "until the desired degree of opening is reached, then he presses the p-button ## to" stop "which causes the cut off the power supply to the electric motor 42, therefore stopping the opening movement. The shutters are locked in this intermediate position # by the worm gear drive with helical gear which works only in the screwed direction but which does not work in the reverse direction: The shutters are therefore self-locked in the same position and independently of each other.

The engine safety stop switch causes the engine to stop supplying power when a shutter is, for example, blocked by an element external to the operating device because this safety stop switch is triggered as soon as when the motor undergoes a resistant force greater than a preset threshold.

Such a switch can operate by detecting abnormal heat from the electric motor, for example.
On the other hand, in the case where the external agent is the wind, the electric motor must exert a force greater than the prefixed threshold to overcome the forces due to the wind and cause the complete opening of the flaps.

In this case, the user exerts a pressure on the cancel push-button which temporarily shunts the safety stop switch and causes the complete opening of the shutter notwithstanding the wind-resistant force. The operating device according to the invention allows by means of the connecting bar with adjustment sleeve 98 to adjust the length of this connecting bar as a function of the dimensions of the opening 24 and in parallel to adjust the positioning of the flaps 16 and 18 during closing by phasing the worm screws 58 and 92.

An improvement of the invention consists in providing on the rail 32 an adjustable stop 120 integral with this rail 32 and a contactor 122 integral with one of the curved arms, as shown in FIG. 2. The stop 120 is adjusted so that, the flap 16 being in the closed position, the contactor 122 is in abutment on the stop 120.

This contactor 122 is connected to an anti-theft control unit (not shown of known type) in such a way that the contactor 122 in support leaves the anti-theft circuit open and that as soon as the contactor 122 is no longer in contact with the stop 120 the circuit of the anti-theft control unit is closed and causes it to trip. This improvement makes it possible to avoid opening the shutters by breaking in by exerting traction from the outside. As for the user, he must, by a suitable means, switch off the anti-theft control unit before proceeding to open its shutters.

Another improvement consists in providing an installation with several shutter operating devices arranged on different openings, with a common installation comprising a centralized control box which allows the user to simultaneously control the various shutter operating devices upon opening. , stopped or closed.

In addition, the shaft 53 bored can receive the tip of a crank, it suffices to provide access to this bore from the inside. This possibility of manual actuation makes the device even more versatile and allows maneuvering even in the event of an engine failure or power cut.

The electric motor device according to the invention, given their low energy consumption, can use as an energy source.

electric accumulators which makes it completely autonomous. In some cases, these accumulators are associated with photovoltaic cell sensors which ensure recharging.

Likewise, the push button front switches can be replaced by a remote control device with portable transmitter.

This variant makes it possible in particular to avoid the operation of the flaps without the remote control or for disabled people to control the opening and closing without additional displacement.

As shown in FIG. 5, a variant of the device according to the invention is provided with mechanical safety means 124 interposed between the two pinions of the bevel gear 50. This mechanical safety means comprises two parts coaxial 426, 128 locked in rotation relative to their respective pinions which, in this case, are movable relative to each other.

One of the pinions 52 and the opposite piece 128 are each provided with a groove 130, 132 for guiding a set of balls 134. In addition, deeper bowls are formed at regular intervals in these grooves. way to receive the balls. 7n calibrated spring 136 is interposed between the pinion 54 and the part 128 movable in translation.

Thus, when the device must provide a normal opening and closing force, the spring exerts sufficient pressure on the part 128 so that it does not plate the balls in their bowls without them being able to escape to roll in the throats.

 In contrast, if a resistant force prevents or slows down the movement of the flaps, the motor continues to exert its force and the spring pressure is no longer sufficient to press the balls into their bowls. These come out of the bowls and roll into the grooves. The two pinions are then disconnected in rotation, the pinion 52 rotating without load and the pinion 54 remaining fixed.

As soon as the blocking of the maneuvering of the flaps is removed, the two pinions are again joined in rotation, the balls return to their bowls. the calibrated spring assu'rant their maintenance in this position.

Claims (10)

 1. Maneuvering device for the opening and closing of at least one flap (16) in front of an opening (24) with an active operating member (10) disposed in line with the support shelf (28) of this opening characterized in that it comprises a horizontal curved arm (20) one end of which is mounted free in translation relative to the flap (16) and the other end of which is integral with a vertical shaft (64) carrying a wheel (62) driven in rotation by an endless screw (58) itself rotated by motor means, the longitudinal axis of the screw being substantially parallel to the plane of the opening,  2. Device according to claim 1 characterized in that the motor means comprise an electric geared motor (42, 44) with drive pinion (48).  3. Device according to claim 1 or 2 characterized in that it comprises a double angle gear at 900 (50) disposed between the worm (58) and the gear motor (42, 44) so that the axes of rotation of the motor and the screw are parallel.  4. Device according to any one of claims 1 & 3, characterized in that the double angle gear (50) comprises a shaft (53) with double pinion (52, 54) one of the ends of which is bored with so as to cooperate with the end of a crank.  5. Device according to any one of claims 1 to 4, characterized in that it comprises a plate (72) with two end-of-travel sensors (68, 70), arranged coaxially with the vertical shaft and 'and in that the wheel (62) integral with this shaft comprises a protruding lug (66) which cooperates with said sensors.  e D spositif according to any one of claims 1 to 5, characterized in that it comprises a passive operating member (12) with a worm (92) and a connecting bar (14) provided at each of its ends (84, 86) of a universal joint (82, 88), these articulations (82, ee, being respectively secured to the ends (80, 90) of the worms (58, 92) of the active and passive members (10, 12).  7. Device according to claim 1 characterized in that the passive member (12) comprises a wheel 41065 driven by the worm (92) and secured to a vertical shaft (108) driving a second horizontal curved arm (22) one end of which is slidably mounted relative to a second flap (18).  8. Device according to claim 6 or 7 characterized in that the connecting bar (14) comprises two parts (94, 96} threaded and an adjusting sleeve (98) threaded.  - 9. Device according to any one of the preceding claims, characterized in that it comprises an electric motor control unit (42) with at least three push-buttons for opening, closing and stopping.  10. Device according to claim 9 characterized in that the pushbuttons are engaged.  11. Device according to one of claims 9 or 10 -ara-terise in that the control bolier is connected to the limit switches.  12. Device according to one of claims 9 to 11. characterized in that the housing comprises a safety stop switch which cuts the power to the motor when the threshold of resistant force applied to the motor is exceeded.  13. Device according to claim 12 characterized in that the control unit comprises a temporary shunt push button of the safety stop switch.  14. Installation comprising at least two shutter operating devices according to any one of the preceding claims, characterized in that it comprises a centralized control unit for the operating devices and / or a remote control.