ES2265404T3 - MANUAL CONTROLLER DEVICE OF AN ELECTRIC MOTOR FOR ROLLING BLIND. - Google Patents

Abstract

Manual control device of an electric roller shutter motor, characterized in that it comprises a stage (1) of support for the electric motor (2), this stage (1) being provided with a first housing (3) for a crown that forms a kite (4) with alternative rotary movement and manual control by handle (6), said kite (4) cooperating with a crank connecting rod system to allow transforming the rotational movement of said kite (4) into a translation movement of a switch (17) positioned within a second housing (18) made in said stage (1), allowing said switch (17) to select the various command commands to the electric motor (2), coupled to a winding tube of a roller shutter board.

Description

Manual engine control device electric roller shutter.

The present invention relates to a control device of a roller shutter motor (see for example document FR-A-1 025 384).

More particularly, the invention relates to a manual control device of an electric blind motor overwhelmingly responsible for ensuring command orders traditional engine, namely "ascent", "descent", "stop" but also automatic stoppages at the high point or under his career.

Known engine control devices electric roller shutter use either connections embedded brackets that connect the motor itself to a switch positioned on the wall in the vicinity of the gap equipped with said blind, or a remote connection by electromagnetic waves (radio, infrared, ...), in the latter case the engine is also equipped with an appropriate interface for This type of command.

These two types of technology each possess its own drawbacks:

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       the filar technology imposes when the installation of the Rolling shutter box make reservations on the walls which may eventually be provided when it comes to a installation or a new room but hardly realizable when it comes to renovating or rehabilitating an installation existing,

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       remote control technology aggravates the cost of installation due to the presence of supplementary components for the realization of the electromagnetic motor / control interface.

The present invention has in particular the objective of avoiding these inconveniences by proposing a manual control device of an electric motor for roller shutter that can be integrated without work within a new or rehabilitative installation.
tion.

For this purpose, according to the invention, the device Electric motor manual control roller shutter se characterized in that it comprises a support plate of solidarity of electric motor, this stage being provided with a first accommodation for a crown that forms a kite with movement alternative rotary and manual control by shooter, cooperating said kite with a crank crank system to allow transforming the rotational movement of said kite in the movement of translation of a switch positioned within a second accommodation made on said stage, allowing said switch select the various command commands to the engine electrical, connected to a winding tube of a board roller shutter.

Thanks to these provisions, it is possible to send manually in "ascent", "descent", "stop", and when the race ends, a solidary electric motor of the winding tube of a roller blind, simply by means of a plurality of actions on a shooter or the like simply attached to the control device.

In preferred embodiments of the invention, one can also resort to one and / or another of the following provisions:

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       the kite is provided with at least one flexible leg that shape protruding at the level of the inner peripheral wall of the crown, cooperating this leg at the level of a ratchet wheel that can rotate inside said crown;

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       The switch consists of a part, a slide mobile according to a first address in the second accommodation, and by another part by a mobile piston on the slide according to a second direction perpendicular to the previous one, said piston being attached on the one hand, by means of a connecting rod to the ratchet wheel and on the other hand, to a finger that allows feeding electric of said motor;

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       the switch does not automatically return to the "stop" position until the presence of a resulting antagonistic pair takes place of a high or low point of the run of said board of the roller shutter or the presence of an obstacle between these two points;

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       the engine comprises at least one shoulder pivot that allows move the slide into the second housing of the stage according to the first direction and disengage the piston of the finger, in order to cut off the power supply of said motor;

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       the pivot is positioned on the facade of said motor;

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       the pivot is positioned on the outer peripheral wall of said motor and is provided with a blade that cooperates by surfaces at the level of a block, said block being held in position in a third accommodation made in said stage with the support of at least one elastic organ;

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       the areas of cooperation between the block and the blade have some sloping walls;

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       the sloping walls are of different incidence in function of the direction of rotation of said motor;

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       the shooter comprises a safety device that allows limiting the tensile stress exerted on the kite.

Other features and advantages of the invention they will become more clear from the description following one of its embodiments, given as non-limiting example, with respect to the attached plans.

In the plans:

- Figure 1 is a perspective view and exploded of the various components of the control device manual of an electric roller shutter motor;

- Figure 1a is a view in perspective and detail of the hooking device provided in shooter;

- Figure 2 is a perspective view of the manual control device in one direction configuration of the rise of the roller shutter board;

- Figure 3 is an elevation view side of the control device in a stop configuration of the roller shutter board;

- Figure 4 is an elevation view side of the control device in a descent configuration of the roller shutter board;

- Figure 5 is an elevation view side of the control device in a dashboard configuration in the high top;

- Figure 6 is a block diagram from the principle that illustrates the various phases of the movement.

In the different figures, the same references designate identical or similar elements.

It has been represented by reference 1 in the Figure 1 a stage. This stage 1 is in solidarity through classic techniques (embedded for example) with the end of an engine electric 2, which allows you to drag in rotation, both in the direction of ascent as of descent, the board of a blind Rollable, which cooperates at the level of a wound tube, solidary of the electric motor rotor 2.

This stage 1 is provided with a first accommodation 3 intended to receive and guide a kite in rotation 4, substantially cylindrical and emptied in its center.

This kite 4 presents on its peripheral wall external a slot 5 in which a handle 6 cooperates, driving this handle on the one hand, through a hole 7 made in stage 1, and on the other hand at the level of a planned cash flow 8 on one of the walls that make up box 9 of the blind Rollable, in order to make the handle 6 accessible to a user.

The barrel 4 is also provided in its outer peripheral wall of a stop 10 for an elastic member 11 of spiral spring type, cooperating the latter at the level of its other free end within a hole 12 made in the first accommodation 3 of stage 1.

This elastic organ 11 ensures the return to its initial position of skipjack 4 as a result of a traction of the user on the handle 6, which has caused a ¼ turn rotation of skipjack 4.

The association of the shooter 6 and the organ elastic 11 allows to print to the barrel 4 a movement alternative rotation within the first housing 3.

On the other hand, the barrel 4 is provided with level of its inner peripheral wall of at least one leg flexible 13, the free end of this flexible leg being oriented so as to cause the drag of a wheel of ratchet 14, coaxially mounted inside barrel 4.

This ratchet wheel 14 has in its outer peripheral surface of a plurality of toothed areas 15 that delimit between them, or some areas of drag in a direction of rotation of skipjack 4, or escape zones in the other direction of rotation of the barrel 4.

The barrel 4 is connected by means of a connecting rod 16 to a switch device 17 positioned within a second housing 18 practiced on stage 1.

The switch device 17 comprises a equipment consisting of a slide 19, a piston 20 and a finger twenty-one.

Being the second accommodation 18 globally of rectangular straight section has side surfaces 22 that allow to ensure guidance, according to a first direction substantially perpendicular to the bottom wall 23 of the second housing 18, of the slide 19.

On the other hand, the slide 19 is provided of at least one guiding surface 24 substantially oriented according to a second direction perpendicular to the previous one and thanks to which piston 20 can slide according to this second direction in ratio of complementary guide surfaces 25.

The piston 20 cooperates at the free end level of the connecting rod 16 so that it performs with the barrel 4, a system crank rod in order to transform the rotational movement of the kite 4 in a translation movement of the piston 20 and therefore of switch assembly 17.

The piston 20 is attached to the finger 21 thanks to a slot 26 or the like in which a spike 27 will slide highlight perpendicular to finger 21.

Alternative translation of piston 20 It affects finger 21, finger 21 which has a plurality of electrical contacts that allow connections electric on the electric motor solidarity of a tube Rolled up the roller shutter board, causing these connections depending on the position of finger 21, an ascent of roller shutter board, a drop of this board, its stop or in an intermediate position between a fully lowered or fully raised position of the board, or well in an extreme position consecutive to a high end of career or under the board.

An elastic organ 33 positioned in the second housing 18 between the slide 19 and the bottom wall 23 of said housing 18 permanently applies the contacts electric finger over the electric motor.

It can be noted in Figure 1, that the engine electric 2 is also provided with a plurality of pivots 28, 29 that form protrusion either on the façade on the engine, or on the outer peripheral surface. These pivots 28, 29 whose function will be explained later in the description, participate in the strike the motor.

In figure 1a, a detail has been shown of conception of the handle 6. This comprises a device for safety 30 that allows to limit the tensile stresses exerted Over the kite. This is constituted by two parts in rings superimposed on each other. One of the rings has a opening 31 that can be opened in the presence of a force of intensity too important on the shooter 6 getting weaker then the ring with opening of the part of the handle attached to the kite 4, preventing any destruction of the device I send. You can also, thanks to this safety device, easily adapt the length of the handle 6.

Figures 2, 3 and 4 illustrate the various positions that the components that form the control device shown in figure 1.

Thus, Figure 2 illustrates the position of the control device in the "rise" position of the control panel roller shutter. The switch is manipulated by the piston with an alternative movement from bottom to top and top to bottom below (in figure 2, the piston is at the top), passing successively the "stop" positions (figure 3), "rise" (figure 2), "stop", "descent" (figure 4), stop, rise, etc. This operating cycle is illustrated in Figure 6.

With each user action on the shooter 6, the kite 4 advances the wheel of the ratchet 14 that causes the crank system a crank upward translation or downward translation of the slide 19 and therefore finger 21.

Figure 3 represents the stopped state of the engine. Finger 21 is in a central position and in a state stable. Elastic organs 32 arranged on each side of the pin 27 are at rest in this single operating position. For the other positions "ascent" or "descent", one of the elastic organs 32 remains requested, and the other is released

With the disappearance of the solicitation on the handle 6, the elastic organ 11 brings the barrel 4 back to its initial position, toothed areas 15 of ratchet wheel 14 they escape, finger 21 remains in position and will not return to its "stop" position until after a certain amount of request exerted on the shooter 6 by the user (see figure 6). It will automatically return to the "stop" position only in the presence of an antagonistic pair, leading then one of the organs 32 requested the finger 21 to its position stable.

The "stop" position that is illustrated in the Figure 3 is a "stop" position desired by the user that corresponds in fact to an intermediate position of the board between a fully lowered or fully raised position of this latest.

Figure 4 represents the position of the piston 20 and finger 21 in a "lowering" position of the board.

Obviously, the position of switch 17 which allows the realization of the "ascent" or the "descent" of the board is purely conventional and in fact depends on the electrical connections that are made between the pivots supported by finger 21 and positioned on the engine electric. The performances illustrated in Figures 2 and 4 they could be reversed without departing from the framework of the invention.

In figure 5, the position has been represented of the various elements that make up the control device of the electric motor, in a "stop" position, consecutive to the presence of a high end of career or a low end of career, or also an untimely blockade of the board in the direction of "ascent" or "descent".

It is emphasized that the engine 2 comprises at least a pivot 28, 29 in projection that allows sliding the slide 19 within the second housing 18 of stage 1 according to the first direction and clutch the piston 20 of the pin 27 of the finger 21, in order to cut off the power supply of said motor, by return to the "stop" position of said finger 21.

Indeed, when the blind board Rollable reaches the top or bottom, or finds a obstacle between these two positions, the board transmits a force as a reaction on the winding tube that tends to make slightly rotate the rotor part with respect to the stator part of the engine. This antagonistic pair causes an angular displacement of the pins 28 and 29, respectively positioned on the periphery of the motor 2. The pins 28 then come into contact with the walls bevels 34 made on the piston 20 causing its recoil according to the first direction because the slide 19 integral of the piston 20 is slidably mounted in the second housing 18 According to this address.

The pin 27 then escapes from the slot 26 made on the piston 20, and the finger 21 can return to the stable position thanks to elastic organs 32.

A next drive on the handle 6 rearms finger system 21 / piston 20 of switch 17.

As depicted in Figure 6, it is it is necessary to perform an action on the handle 6 to cause a "ascent" or "descent" movement on the engine.

The peripheral pin 29 is provided with a blade 35 cooperating at the level of a block 36, said block 36 being held in position, with the help of at least one organ elastic 40, in a third housing 37 made in said stage one.

On the other hand, the cooperation zones 38 between the block 36 and the blade 35 comprise inclined walls 39, whose degree of incidence is different depending on the direction of rotation of said
engine.

It can be so, thanks to these sloping walls 39 differentiate the trigger threshold between high stop points or low, knowing that there is virtually no effort needed when the descent of the board takes place. The block 36 allows a rotation of the motor only for a certain value of antagonistic torque. Due at different degrees of incidence between the sloping walls 35, it will be possible by simply turning the block 36 to determine the direction of the "ascent" or "descent" whatever the assembly to right or left of the electric motor on the winding tube in the roller shutter box.

The invention as described Previously, it offers multiple advantages:

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       allows the control of an electric motor of blind winch Rollable without having to proceed to work integrating the electric connections;

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       It is an interesting economic alternative to connection controls by electromagnetic wave;

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       it can be installed indifferently on one or the other of the ends of the winding tube.

Claims (10)

1. Manual control device of an electric roller shutter motor, characterized in that it comprises a stage (1) of support for the electric motor (2), this stage (1) being provided with a first housing (3) for a crown which it forms a kite (4) with alternative rotary movement and manual control by handle (6), said kite (4) cooperating with a crank system to allow the rotation of said kite (4) to be transformed into a translation movement of a switch (17) positioned within a second housing (18) made in said stage (1), allowing said switch (17) to select the various command commands to the electric motor (2), coupled to a winding tube of a roller shutter board. 2. Device according to claim 1, in which the kite (4) is provided with at least one leg flexible (13) that forms protrusion at the level of the peripheral wall internal of the crown, cooperating this leg (13) at the level of a wheel ratchet (14) that can rotate inside said crown. 3. Device according to one of the claims 1 or 2, wherein the switch (17) is constituted by a part, by a sliding slide (19) mobile according to a first address in the second accommodation (18), on the other hand by a piston (20) movable on the slide (19) according to a second direction perpendicular to the previous one, said piston (20) being attached on the one hand, by means of a connecting rod (16) to the ratchet wheel (14) and on the other hand, to a finger (21) that allows the power supply of said motor (2). 4. Device according to any of the claims 1 to 3, wherein the switch (17) only automatically returns to the "stop" position in the presence of a antagonistic pair resulting from a high or low point of the said roller shutter board or in the presence of a obstacle between these two points after the disappearance of the solicitation on the shooter (6). 5. Device according to any of the claims 1 to 4, wherein the motor (2) comprises minus one pivot (28, 29) in projection that allows to move the slide (19) within the second housing (18) of the stage (1) according to the first direction and disengage the piston (20) of the finger (21), in order to cut off the power supply of said engine (2). 6. Device according to claim 5, in which the pivot (28) is positioned on the facade of said motor (2). 7. Device according to claim 5, in which the pivot (29) is positioned on the peripheral wall external of said motor (2) and is provided with a blade (35) that cooperates through surfaces (39), at the level of a block (36), said taco (36) being held in position in a third accommodation (37) made in said stage (1) with the help of at least one elastic organ (40). 8. Device according to claim 7, in which the surfaces (39) of cooperation between the block (36) and the blade (35) have inclined walls. 9. Device according to claim 8, in the one that the sloping walls are of different degree of incidence depending on the direction of rotation of said motor (2). 10. Device according to any of the claims 1 to 9, wherein the handle (6) comprises a safety device (39) that limits the efforts of traction exerted on the kite (4).