EP1329582A1 - Automatische Ahschlagvorrichtung für einen elektrischen, in einem Rotationsrohr angebrachten, insbesondere zur Betätigung eines Rolladens bestimmten Motor - Google Patents

Automatische Ahschlagvorrichtung für einen elektrischen, in einem Rotationsrohr angebrachten, insbesondere zur Betätigung eines Rolladens bestimmten Motor Download PDF

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Publication number
EP1329582A1
EP1329582A1 EP03370003A EP03370003A EP1329582A1 EP 1329582 A1 EP1329582 A1 EP 1329582A1 EP 03370003 A EP03370003 A EP 03370003A EP 03370003 A EP03370003 A EP 03370003A EP 1329582 A1 EP1329582 A1 EP 1329582A1
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EP
European Patent Office
Prior art keywords
casing
pivoting
torque
elements
motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP03370003A
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English (en)
French (fr)
Inventor
Daniel Bracq
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1329582A1 publication Critical patent/EP1329582A1/de
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
    • E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
    • E06B9/88—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic for limiting unrolling
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/68—Operating devices or mechanisms, e.g. with electric drive
    • E06B9/72—Operating devices or mechanisms, e.g. with electric drive comprising an electric motor positioned inside the roller

Definitions

  • the present invention relates to a device that automatically stops an engine electric housed in a rotating tube which actuates a moving element and more especially a roller shutter.
  • Roller shutters powered by an electric motor whose power is simply programmed so that the winding tube carries out a determined number of revolutions are always at risk of being damaged when their operation comes to jam.
  • Improvements have therefore been made to replace the machines that are waiting simply the end of the run of the aprons to cut the power supply to their engine, by devices that cause this cut-off when a overload or an obstacle to the movement of these mobile elements.
  • Means of blocking, at the end of the stroke, then makes it possible to trigger the stopping of the motors free these from any analog device that requires adjustment to reproduce the race of the apron.
  • the invention overcomes these difficulties.
  • a device comprises a junction between the motor casing and a fixed point which allows the casing to pivot, in reaction to the torque appearing at the outlet of the speed reducer, swivels of a determined amplitude triggering the stop of the motor.
  • the main characteristic of this device is that the housing of the motor not being the object of any request, this one presents an equilibrium position, from which the opposite direction swings that cause it to stop the motor have the same amplitude, its junction at the fixed point opposing resistances different to these moves.
  • Figure 1 shows a view along a section along the part of a housing motor containing the stop device according to the invention
  • Figure 2 shows a section through this device
  • Figure 3 a view of its end located in depth in the housing.
  • FIG. 4 shows a view of a variant of the device in a longitudinal section of the casing
  • FIGS. 5 and 6 views of the engagement parts of the junction of this variant of the device with its flexible elements
  • FIG. 7 a specific switch for this first variant of the device.
  • FIGs 8, 9 and 10 relate to another variant of the invention. They represent cuts similar to the basic version.
  • the motor and its speed reducer are housed in a cylindrical housing (1), a wheel at the outlet of the reducer, driving the rotary tube (2) into which the housing (1) is fully inserted.
  • a deformable junction (3) links the casing (1) to an axis (4) whose projecting end (5) is intended to connect to a fixed point.
  • this side of the housing is centered in the rotating tube by the sequence of the axis of its junction with that of a stroke limiter housed in a independent drum.
  • This element not shown, then forms an end piece for the tube. rotatable and ensures centering of the axis of the junction. It is intended to create the obstacle, in the end when the stop will be triggered, the stresses due to the remaining blockage then internal to the rotating tube.
  • the junction (3) comprises flexible elements (6) equidistant from each other, consisting of bars each provided with a roller (7) coming into contact with the axis (4).
  • Cams (8) in a number equal to that of the rollers (7), fill so regular around the axis (4) by being inserted between the rollers.
  • the rollers (7) are in a area from the foot of one cam (8) to that of another cam, it is possible to move laterally the rotary tube (2) which then drives the casing (1) by the drive wheel, not shown, of the motor reducer linked to this rotary tube (2).
  • Such displacement drives the shells (9) and their content, bars (6) and rollers (7), which then slide on the axis (4) of the junction (3).
  • This sliding is counteracted by a spring (10) placed in one of the shells (9), but, when obtained, it allows the rollers (7) to turn on a cylindrical part of the axis (4) escaping from the cams (8).
  • Lateral displacement of the housing is limited by the mating of the cams with the bottom of the countersink provided in one hulls. It is carried out by preferentially pressing the axis into it, the axis of the rotary tube located on the side opposite the motor being telescopic with the consequent end of the tube.
  • Figure 2 provides a view of one of the shells (9), by its side adjoining the other shell and from which it is separated by the thickness of the rollers (7).
  • the there are two bars but we will see that their quantity can be increased.
  • the device will therefore be fitted with as many bars as necessary, their diameter may also vary.
  • Figure 3 provides a view of the end of the device located deep in the casing with the means for interrupting the electrical supply to the engine.
  • These means consist of two switches (11) between which is placed a lever (12).
  • the switches are sealed on supports (13) belonging to the shell (9) whose base is visible here. They are therefore movable in rotation with the casing, while the lever (12) is held by the fixed axis (4) of the junction (3) with a tightening making its orientation precarious. Also, facing a push of the supports (13) of the switches (11), this lever (12) pivots after that he has depressed the switches of the switches (11).
  • an angular location with respect to the cam wheel determines four positions for a caster moving from the top of a cam to that of a neighboring cam, stopping at their foot.
  • a movement leading its center to pass from position A to position B encounters strong resistance, due to the rise of all the casters on their cam.
  • a movement of the casing in the same way amplitude but in opposite direction does not offer significant resistance. Movements inverses after the wheel has been brought to A 'lead to the same effects, too, when the caster is in one or other of the positions A and A 'the casing is in a position pivot median insofar as the movements just considered stop the engine.
  • We will therefore arrange for the gaps between the sides of the lever and a trigger position of the push-button of each switch correspond to these considered movements of the housing.
  • the resistance of the device to the displacement of the casing depends on the component eccentric of the movement of the casters which drops very quickly to become zero when these have reached the top of the cams.
  • the torque resistance of the device therefore starts from a maximum and then weakens, even if the bending of the bars increases. This feature is therefore advantageous insofar as the torque remains after engine stopping is significantly reduced.
  • we arrange for a imbalance tends to spontaneously lower the rollers of their cam.
  • the space between the cams must allow the housing to be moved at less equal to that required by the torque generating phase. To the extent that this space is greater, it is not advised that the middle pivot positions correspond to a position of the casters attached to the feet of the cams.
  • the flexible elements (6) are always bars arranged equidistantly around the fixed axis (4) of the junction, parallel to it, their deformation no longer taking place radially but tangential to the rotation and proportional to it.
  • the ends of these bars (6) are fixedly held by two fixed wheels (18), locked on the axis (4) of the junction, here formed by a simple square tube. These wheels form spans on which the casing (I) can rotate and slide longitudinally.
  • the flexible bars (6) cross the sides of two rings (16,17), one of which (16) is pinned to the housing.
  • the other ring (17) remains on a defined location of the axis (4) while being able to rotate on it, and, to do this, this ring (17) consists of two elements joined by screws (19) which enclose a elastic ring (20) positioned on notches made in the edges of the axis (4) to equidistance from the fixed wheels (18). The thickness of the wire of this ring is distributed between a throat of the ring and the notches of the axis.
  • a spring (10) placed between a fixed wheel (18) and the ring (16) linked to the casing (1) tends to expel the fixed wheel (18) out of the latter, but the axis (4) which holds it is retained by the ring (17) locked longitudinally on it which found pressed against that (16) from which the spring (10) is supported.
  • a depression of the axis in the housing therefore causes the spacing of the two rings in compressing the spring.
  • the ring (16) linked to the casing has oblong lights (22) in the form of arcs of circle. These lights (22) are centered on the circle passing through the center of the bars (6). They are all identical and equidistant from each other.
  • the second ring (17) has the same number of lights (23), of the same shape, but the latter represent a smaller angular sector, the screws (19) which are used for its assembly interposed between these lights (23). These screws (19) have a body which extends out of the total thickness of this ring (17), their point forming lugs which are introduced in the big lights when the bugs are side by side. Either screw (19) neighboring a small light (23) of a ring (17) can then be alternately engaged in the same large light (22) of the other ring (16), occupying a corner or the other of it, and that, respectively, for each pairing of screws.
  • the lights (22,23) of the two rings (16,17) are such that, these rings being separated from each other, that (16) provided with large lights (22) can, without deforming the bars (6), pivot on an angular sector twice as large as the ring (17) provided with small lights (23), and, joined together, they can rotate together all the play allowed by the small lights (23).
  • the game provided by small lights in the engagement of the rings with the bars will affect one or the other direction of pivoting of the casing from a central pivoting position common, obtained when the bars (6) occupy the center of the large lights (22).
  • a buffer (25), linked to the casing (1), is placed equidistant from two switches (11) when the bars (6) occupy the center of the large lights (22).
  • the engine stops will therefore be obtained with identical pivoting of the casing and under opposite couples whose value of one is zero and the other strong.
  • the manipulation of the already installed rotary tube can find its limit, laterally, by the crushing of the spring (10), as well as by stops (14) which restrict the rotation of the ring (16) linked to the casing when they meet the edges of the square axis (4).
  • the spaces between the switches and the buffer that activates them will be such that the engine stops are triggered just before these stops act, however these can be suppressed insofar as the device leans against a resumption of torque due to reverse bending of the bars which is obtained even when the two rings (16, 17) are dislocated.
  • the said torque recovery may be interesting in the case where a certain pressure must be exerted on the apron at the end of closing. We will then accommodate low sensitivity of the device to cause a stop in the event of an obstacle to the descent. An increased gap between the switches and the buffer will create this effect.
  • the tampon does not have a constant thickness and that its position can be changed in the housing to obtain a sensitivity adjustment.
  • the loop of the stirrup (27) which surrounds the support (29) is provided with a roller (30) and the back of the support (29) on which this roller (30) travels is slightly convex at the place where the spring presses.
  • a beat of three millimeters will reduce the residual torque of the junction of about a third in the case of the variant of the invention.
  • a third embodiment of the invention will also be described, which presents a different mounting of its power cut-off elements.
  • Figure 9 is a cross-sectional view of the junction of the housing to the fixed axis which equips this second variant.
  • the flexible elements (6) consist of steel plates locked in the housing (1), equidistant from each other, by reliefs (35) generated by a puncture with depression of the wall of the casing.
  • the width plates (6) is such that, their edges bearing on the internal wall of the casing (1) and their center on cylindrical sectors of a grooved tube (36), they must bend slightly to be introduced into the housing.
  • the grooves in the tube (36) are numerous equal to that of the plates (6) and receive rollers (37) which partially emerge out of these gorges, over their entire length.
  • the grooved tube (36) contains another tube cylindrical (4) which forms the fixed axis of the Carter junction.
  • the rollers (37) are housed between the plates (6) when the junction is at rest, and a rotation of the casing (1), then that the rollers (37) and the grooved tube (36) maintain a fixed position, causes the eccentric bending of the plates (6).
  • the central part of these plates (6) can have a boss (38) forming an obstacle intended to increase the torque.
  • rods (39) of elastomeric material can be inserted between the flexible plates (6) and the housing (1), the deformation of the plates resulting in crushing of these rods. We will therefore play on the thickness of the plates and the presence, or not, of bosses or rods to vary the torque resistance, the hardness of the elastomer being also a setting factor.
  • the grooved tube (36) constitutes a spacer between two flanges (40) which it connects to each other, which form spans for the casing (1).
  • the flexible plates (6) are contained between the flanges (40) which, themselves, are trapped between retainers of the casing (1).
  • the housing (1) can rotate on these flanges (40) and if it moves laterally it drives them with it, the grooved tube (36) being able, on its side, to slide on the fixed axis (4).
  • To facilitate mounting of the motor in the casing (1) it will be preferable to accommodate the junction (3) in a part separable from that which contains the motor and to reunite these two parts by a sleeve (41).
  • the collar (40) located near the sleeve (41) has an imprint in which a dog is nestled (42) linked to the fixed axis (4) of the junction (3).
  • a spring (10) acting between this dog (42) and the sleeve (41) which reunites the casing (1) tends to hold the dog clutch (42) in its niche.
  • the end of the fixed axis (4) internal to the casing carries a cradle (44) to which the switches (11) are attached.
  • This cradle (44) is held by a pin (45) engaged in the core of the fixed axis (4) in which it can rotate with friction.
  • Two fingers (12), visible in Figure 10, from the sleeve (41) connecting the casing (1) will be provided to actuate them.
  • stops (14) formed in the same sleeve (41) limit the amplitude of the swivels that can be given manually to the housing. These stops (14) cooperate with the stud (43) of a ring (46) linked to the fixed axis (4).
  • the operation here is perfectly identical. and we will therefore not repeat its entire explanation.
  • Figures 9 and 10 show that the casing has already largely left its central pivoting position when the plates come into contact with the rolls. Indeed the fact of deforming the plates requires a rotation of the casing much less important than that causing the plates to leave a roll for come into contact with a neighboring roller. However, we know that to remove the empty game, it is necessary that the stop obtained without resistance occurs when the junction is backed by its resumption of resistance. We also know that for the housing to be in its middle position, the the distances separating each switch from its actuating finger are similar. By taking a moving pointing with the casing, we see on figure 9 that the position median relative to the scenario is obtained when this score starting from A is positions in the vertical plane, which moves the plates away from their roller.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Transmission Devices (AREA)
  • Braking Arrangements (AREA)
EP03370003A 2002-01-18 2003-01-17 Automatische Ahschlagvorrichtung für einen elektrischen, in einem Rotationsrohr angebrachten, insbesondere zur Betätigung eines Rolladens bestimmten Motor Withdrawn EP1329582A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0200640A FR2835117B1 (fr) 2002-01-18 2002-01-18 Dispositif d'arret automatique pour un moteur electrique loge dans un tube rotatif plus particulierement destine a actionner un volet roulant
FR0200640 2002-01-18

Publications (1)

Publication Number Publication Date
EP1329582A1 true EP1329582A1 (de) 2003-07-23

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EP03370003A Withdrawn EP1329582A1 (de) 2002-01-18 2003-01-17 Automatische Ahschlagvorrichtung für einen elektrischen, in einem Rotationsrohr angebrachten, insbesondere zur Betätigung eines Rolladens bestimmten Motor

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EP (1) EP1329582A1 (de)
FR (1) FR2835117B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3014937A1 (fr) * 2013-12-18 2015-06-19 Bubendorff Fin de course d'enroulement ou de deroulement de tablier de systeme d'occultation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2740824A1 (fr) * 1995-11-07 1997-05-09 Somfy Installation de fermeture ou de protection solaire motorisee
EP0844363A1 (de) * 1996-11-21 1998-05-27 Somfy Automatische Abschaltvorrichtung für Rolladen oder dergleichen
EP0844362A1 (de) * 1996-11-21 1998-05-27 Somfy Vorrichtung zum automatischen Abschalten eines Motorantriebes einer Rolladenwickelwelle
FR2805307A1 (fr) * 2000-02-21 2001-08-24 Somfy Volet roulant motorise equipe de moyens d'arret automatique

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2740824A1 (fr) * 1995-11-07 1997-05-09 Somfy Installation de fermeture ou de protection solaire motorisee
EP0844363A1 (de) * 1996-11-21 1998-05-27 Somfy Automatische Abschaltvorrichtung für Rolladen oder dergleichen
EP0844362A1 (de) * 1996-11-21 1998-05-27 Somfy Vorrichtung zum automatischen Abschalten eines Motorantriebes einer Rolladenwickelwelle
FR2805307A1 (fr) * 2000-02-21 2001-08-24 Somfy Volet roulant motorise equipe de moyens d'arret automatique

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3014937A1 (fr) * 2013-12-18 2015-06-19 Bubendorff Fin de course d'enroulement ou de deroulement de tablier de systeme d'occultation
EP2886782A1 (de) * 2013-12-18 2015-06-24 Bubendorff Endanschlag der auf- oder der abrollung eines behangs eines abdecksystems

Also Published As

Publication number Publication date
FR2835117A1 (fr) 2003-07-25
FR2835117B1 (fr) 2004-05-07

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