EP0844362B1 - Dispositif d'arrêt automatique d'un moteur entraínant un tube d'enroulement d'un volet roulant - Google Patents

Dispositif d'arrêt automatique d'un moteur entraínant un tube d'enroulement d'un volet roulant Download PDF

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Publication number
EP0844362B1
EP0844362B1 EP97810863A EP97810863A EP0844362B1 EP 0844362 B1 EP0844362 B1 EP 0844362B1 EP 97810863 A EP97810863 A EP 97810863A EP 97810863 A EP97810863 A EP 97810863A EP 0844362 B1 EP0844362 B1 EP 0844362B1
Authority
EP
European Patent Office
Prior art keywords
switch
torque
winding
lever
cage
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.)
Expired - Lifetime
Application number
EP97810863A
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German (de)
English (en)
French (fr)
Other versions
EP0844362A1 (fr
Inventor
Thierry Jacqui
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Somfy SA
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Somfy SA
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Filing date
Publication date
Application filed by Somfy SA filed Critical Somfy SA
Publication of EP0844362A1 publication Critical patent/EP0844362A1/fr
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Publication of EP0844362B1 publication Critical patent/EP0844362B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E06B2009/6809—Control
    • E06B2009/6818—Control using sensors
    • E06B2009/6854—Control using sensors sensing torque

Definitions

  • the invention relates to an automatic stop device a tubular electric motor driving a tube for rolling up a rolling shutter or the like coming in stop in high rolled up position, comprising a tripping device reacting to the torque exerted on the motor housing by the winding shaft of so as to interrupt the power supply to the motor when an increase in torque due to the arrival of the shutter rolling in high position.
  • Such a device is known from the EP patent application 0 703 344.
  • This device includes, for each direction of moving the shutter, a controlled switch by a mechanism reacting to an increase in torque and a switch controlled by a mechanism measuring the path traveled by the roller shutter.
  • a controlled switch by a mechanism reacting to an increase in torque
  • a switch controlled by a mechanism measuring the path traveled by the roller shutter AT the winding, when the roller shutter curtain is suspended, the torque exerted on the motor by the flap rolling is greater than the trigger value up to a certain degree of winding and the torque-dependent switch is open, but it is bypassed by the switch controlled by the mechanism measuring the distance traveled, the contact of this switch being closed.
  • the torque becomes lower than its tripping value and the corresponding switch closes.
  • a third switch is controlled by the mechanism measuring the distance traveled to interrupt power to the motor when the path traveled corresponds to a complete rolling shutter sequence.
  • This switch is in series with a fourth switch controlled by means reacting to exceeding a certain value of the downhill torque to stop the engine in case the roller shutter encounters an obstacle.
  • this overtorque should be significantly greater than the maximum torque appearing when rolling up the roller shutter at the moment when the entire roller shutter deck is suspended, as can be seen on the curve shown in the FIG. 1 of document EP 0 703 344 or in FIG. 10 of attached drawing.
  • Using a second switch of shunting controlled by a mechanism measuring the path traveled by the roller shutter makes it possible account for the variation in torque than in the last part, low, of the curve, which allows to obtain a safe engine shutdown with only a fraction of the max torque This avoids deterioration of the roller shutter due to excessive traction exerted on it when it reaches the stop high.
  • This prior art device however requires two pairs of switches and, in any case, one mechanism measuring the distance traveled. Furthermore, in execution according to the prior art, the means reacting to torque with switches correspondents are mounted on the outside of the tube while the mechanism measuring the path traveled and corresponding switches is mounted inside the winding tube. The overall size is therefore important.
  • the object of the invention is to produce a device operating in the same spirit as the device according to the prior art, but simpler and more compact.
  • the device according to the invention is characterized in that that it includes a single switch operating at winding and mechanical shutdown means service of the switch operating at the winding less during the winding phase during which the torque exerted on the winding tube is greater than the tripping torque.
  • the device can be advantageously housed entirely in the winding tube.
  • Switching off the switch operating at winding can be done by different means. Mon of these means is to shift axially the switch or arm that controls this light switch. Another way is to use a flexible or two-part actuating arm by a spring and to retain, that is to say to lock this arm by means of a locking finger retractable.
  • Moving the switch or its lever control and the retracting finger control can also be insured by different means.
  • One of these means is to use a movable worm axially and carrying a sliding pinion driven by a pinion itself driven with the winding tube as we know it from different stop devices at the end of the race as described, for example, in the FR 2 412 483, FR 2 599 524, FR 2 656 463 or FR patents 2,679,376.
  • Another control means is a cam cylindrical integral with the motor housing and having a switch-shaped groove in which is engaged a finger secured to a control member axially displaceable and the displacement of which is opposed a shock absorber whose inertia makes it possible to distinguish between a gradual increase in torque such that we meet in the first part of rolling up the roller shutter, and an increase abrupt torque due to the meeting of the upper stop, in such a way that the control member moves during a gradual increase in torque so that turn off the switch in the first part of the roller shutter winding, particularly in the part of the torque curve where the torque is greater than the tripping torque, but at do not deactivate the switch when the torque suddenly increases when the flap reaches the stop high, usually against the roller shutter box.
  • the switch will also be actuated in the event that the roller shutter is prevented from its position completely unfolded or in said first part of its winding, that is to say as long as the torque exerted on the winding tube is less than its trigger value.
  • the device is symmetrically constructed, but includes very simple means of establishing an asymmetry left or right so as to allow, by a very simple operation to adapt the device to a left or right mounting in a winding tube.
  • these means consist of a tray angularly adjustable and carrying the levers actuation of the two switches, the orientation angle of the plate having the effect of requiring, side more rotation, on one side than the other from the motor housing, i.e. more compression on one side than the other, a calibrated spring determining the torque necessary for actuation of the switch.
  • Figure 1 shows, as a reminder, a component rolling 1 rollable on a winding tube 2 in which is housed an engine, more precisely a motorcycle reducer 4, the output of which leads to a crown 3 which drives the roller 2 in rotation.
  • Motor 4 is supported by a fixed plate 5 generally constituting the end of a box, not shown, housing the winding tube and the roller shutter.
  • the other end of the winding tube 2 is supported, known manner, by a bearing fixed to the other cheek of the caisson.
  • the motor 4 is connected by wires 7 to a control box 6 with two buttons 9 intended to control the winding or the unwinding of the rolling shutter, i.e. the rotation of the motor 4 one way or the other.
  • the control unit 6 is connected to a power supply 8.
  • the automatic shutdown device shown in Figure 2 is mounted inside the winding tube 2 partially shown in Figure 2.
  • a crown 10 one of which smooth part rests on a cylindrical support 11 serving as an end bearing for the winding tube and forming part of a support 12 fixed to the cheek of the box 5 and containing the electrical connections of the engine control supply.
  • a cage 13 of general shape cylindrical containing the means for detecting a overtorque and the means of decommissioning the switch which will be described later.
  • This cage 13 is mounted inside an extension of the casing cylindrical 14 of motor 4 and retains, so elastic, this casing in rotation.
  • the casing 14 is provided with two longitudinal bars 15 and 16 fixed to the inner wall of the housing by screws 17 and housed in grooves of the cage 13. These bars and these grooves 15 and 16 are arranged parallel to the common axis of the winding tube 2 and of the casing 14 and symmetrically relative to this axis.
  • the casing 14 is retained in rotation around the cage 13 by four sets of V-shaped springs 18 arranged between each of the bars 15 and 16 and the frame 19 of the cage 13 on each side of these bars. Bars 15 and 16 are thus each retained between two sets of springs.
  • the taring of these springs is done either by the choice of springs, or by the number of springs.
  • the other end of the cage 13 is terminated by a front wall 20.
  • On this wall 20 are fixed two switches 21 and 22 arranged symmetrically relative to a plane containing the axis of the assembly and passing through the middle of a finger 23 extending towards the front of the edge of the wall 20 parallel to the axis common.
  • This plane of symmetry whose importance will appear later, is designated in Figure 6 by the reference A.
  • the switches 21 and 22 are provided each respectively of a pusher 24 and 25 intended for be operated by a lever of the first kind or rocker 26, respectively 27.
  • connection tabs 28 and 29 for the electrical connection of switches to motor no shown, located in the extension of the device Stop.
  • the front wall 20 of the cage is provided, in its center, of an axis 30 merged with the geometric axis of the cage, extending between the switches and fitted of a head.
  • a plate 31 extending approximately on a semicircle and having a plane of axial symmetry B.
  • This plate 31 carries the levers 26 and 27 which are mounted swiveling and sliding on rods 32 and 33.
  • coil springs 34 and 35 mounted around the rods 32 and 33 work simultaneously in compression and twist so as to simultaneously push the levers 26 and 27 against the plate 31 and to maintain these levers separated from pushers 24 and 25 of switches.
  • Around the rod 30 is also mounted a spring 36 which holds the plate 31 against the front wall 20.
  • the wall front 20 has two protrusions 37 and 38 in shape of symmetrically arranged crown sectors with respect to the plane of symmetry A.
  • These protrusions 37 and 38 constitute stops against which comes abut one or the other of the levers 26 and 27, according to the angularly offset position to the left or right of the plane of symmetry B of the plate 31 relative to the plane of symmetry A.
  • the lever 26 being, on the other hand, outside the scope of the stop 37, it is pushed by its spring 34 against the plate 31. In this position, its tilting is without effect on the push-button 24 of the switch 21.
  • Crown 10 has internal toothing 39 driving a pinion 40 formed or fixed at the end a long pinion 41 extending in the cage 13 parallel to the axis of the cage 13 over almost all the length of it.
  • This long pinion 41 meshes with two sliding pinions 42 and 43 moving, when their rotation, like nuts on a screw 44, respectively 45.
  • These screws are immobilized in rotation and have a certain axial freedom, but they are kept at the bottom of a housing 46 in the frame 19 of the cage by a thrust spring 47, respectively 48.
  • the screws 44 and 45 have a end likely to cross the front wall 20. In Figures 2 and 4, there are holes 49 in the wall 20 allowing the screw 44 to pass through this wall 20 to push the plate 31.
  • the device shown also has the advantage to be able to be mounted, with the engine, both left of a doorway only to the right of it, or in other words, the two switches can be used both for high point stop and for stopping at the lowest point.
  • This advantage is obtained by a construction tip already apparent in Figures 2 to 5, but which will be explained in detail using the figure 6.
  • the plate 31 has an axial plane of symmetry B confused, in FIG. 6, with the plane of symmetry A of the cage 13.
  • the tray 31 On each side of its plane of symmetry B the tray 31 has, in the upper part of its periphery, two notches 50 and 51, also arranged symmetrically relative to plane B, for example 5 ° on each side of this plane.
  • the finished device is delivered to installers in the neutral position shown in Figure 6.
  • all the components visible on the front of the device are arranged symmetrically relative to the plane of symmetry A, i.e. also levers 26 and 27 for actuating switches 21 and 22.
  • the plate 31 abuts against the end of the fixed finger 23 which is located between the two notches 50 and 51.
  • the tray 31 thus being held forward, the two levers 26 and 27 of the switches are held in front of the stops 37 and 38. From this position, the installer can obtain a "left" device or "right” by slightly turning the plate 31 to left or right. If the plate 31 is turned to left, finger 23 engages in notch 50 and we obtains the positioning shown in Figures 2 to 5.
  • the device could include a single screw and a single player, to stop at high point, stop at low point taking place with the scale already described.
  • Stopping at the low point could also be ensured by a direct action of a second player on the second switch, i.e. without torque intervention exerted on the winding tube.
  • the second mode of execution differs from the first mode of execution by the means of displacement of the plate 31.
  • Components not belonging to these means of displacement are the same in both modes of execution with, sometimes, small differences in form.
  • common elements of the two modes of execution are designated by the same reference numbers. The the most important differences in form are found in crown 10 which has no teeth at the Figure 8, since it no longer has to train pinion, in the cage 13 which also has a shape adapted to contain the means of movement and in the tray 31 more cut than in the first mode of execution.
  • FIG. 8 again shows a broken away of the cage 13, which, in this second embodiment, is much closer to a complete cylinder.
  • the means of displacement of the plate 31 are constituted here of a cam 60 in the shape of a coat sector cylindrical, the edges of which rest on the bars 15 and 16.
  • a clearance 61 on each side, allows the cam 60 to rotate at an angle around the cage 13.
  • This cam 60 has a set of grooves 62 shown. in detail, seen from inside the cage, in Figure 9.
  • Figure 9 is obtained by turning the cam 60 as shown in FIG. 8.
  • the game of grooves 62 has symmetry with respect to plane A of Figure 6.
  • the grooves of the groove set 62 are partly through and partly not through.
  • This part central 620 is extended on each side by branches 621 and 622 not traversing and connected to the central part by strong ramps 623 and 624.
  • a from the ends of the central part 620 extend two approximately helical grooves 625 and 626 traversing constituting the active parts of the cam and ending in two short sections 627 and 628 parallel to the central section 620.
  • the top of ramps 623 and 624 coincides with the grooves 625 and 626.
  • a finger 63 extending radially in the cage 13 and mounted on a spring 64 housed in a moving part 65, between a flange 66 carrying the finger 63 and the bottom of the housing.
  • the axially movable part 65 leans, on the opposite side to the plate 31, against a shock absorber 67, for example a shock absorber of the type hydraulic shock absorber for vehicle suspension.
  • a shock absorber 67 for example a shock absorber of the type hydraulic shock absorber for vehicle suspension.
  • the piece 65 ends with a finger thrust 68 which crosses the front wall 20 of the cage to push the plate 31.
  • Figure 10 represents the variation of the torque applied to the flap rolling during its winding.
  • the couple is represented on the ordinate, while the height of the roller shutter deck remaining to be rolled up represented on the abscissa, the origin corresponding to the completely unrolled position.
  • the tray 31 is positioned on the left as in Figure 2 and the device is in rest position, for example in fully extended position of the roller shutter corresponding to the origin of the curve shown in the figure 10.
  • the torque gradually increases and the cam 60 rotates relatively slowly in the direction of arrow F.
  • finger 63 reaches the end of section 620, it stumbles simultaneously against the ramp 624 and against the helical section 626, but the resistance of the ramp 624 being greater than the shock absorber resistance, finger 63 follows the helical section and drives the work back mobile 65.
  • the plate 31 can then be pushed back in rear by its spring 36 and, as in the first mode of execution, lever 26 moves back with the plate 31 thus coming into its out-of-service position.
  • the section 628 allows rotation of cam 60 and casing 14.
  • cam 60 returns to its position initial and the finger returns to the central part 620 of the through groove.
  • the cam 60 suddenly turns under the effect of the increase abrupt couple.
  • the inertia of the shock absorber 67 prevents part 65 from moving back and the finger is sees forced to slide on ramp 624, backing up axially, to enter the groove 622.
  • the platform 31 therefore remains in its advanced position, the lever 26 remains in service and operates the switch 21.
  • This embodiment also has the advantage of allow the detection of a blockage of the roller shutter by mounted in the first part of its winding, both that finger 63 has the possibility of passing over ramp 624, respectively 623, following a sudden increase in torque. Indeed, the shock absorber 67 will then react in the same way as when the rolling shutter comes into high stop.
  • the operation of the device is independent of the path traveled by the roller shutter and therefore independent of the length of the roller shutter.
  • the low stop switch When going down, the low stop switch is in permanently active as in the first mode of execution and for the same reasons.
  • Shock absorber 67 could be replaced by any inertial device, for example a locking brake during a sudden action.
  • Another way to disable switches consists in locking the actuation levers of the switches. This locking can be controlled, by example, by means similar to those used in the first mode or in the second mode of execution.
  • Figure 11 is a view similar to that of Figure 2 showing a locking device derived from first mode of execution.
  • the elements included as is or with insignificant form changes in Figure 1 are designated by the same reference numbers.
  • the cage 13 of FIG. 11 does not differ from the cage of the Figure 2 only by the orientation of the screws 44 and 45 and the position of springs 47 and 48 opposing the axial displacement of these screws.
  • the screws 44 and 45 are 180 ° reversed from their position shown in Figure 2, so that the sliding pinions 42 and 43 move in opposite directions of the first mode of execution for the same sense of rotation of the long pinion 41.
  • FIG. 11 when the sliding pinions 42 and 43 are not in abutment, the screws 44 and 45 bear against the front wall 20 under the thrust of their springs 47 and 48.
  • the screws 44 and 45 are extended, through the front wall 20, by a locking finger 71, respectively 72 terminated by an axial flat. Therefore, when, by example, the pinion 42 abuts against the wall 20, the screw 44 moves in the direction of the support 12 in compressing its spring 47. This displacement causes a retraction of the locking finger 71.
  • the plate 31 being positioned on the left, of the same so that in figure 2, it's again the right switch 21 which is the switch high stop.
  • the switches are actuated by levers 73 and 74 which can flex elastically. If we consider lever 73, it consists of two arms 730 and 731 kept in the separated position one of the other by a spring 732 working in compression.
  • FIG. 11 shows the device at rest, casing 14 not subjected to torsional stress.
  • the switch 22 is therefore actuated by its lever 74.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Blinds (AREA)
  • Stopping Of Electric Motors (AREA)
EP97810863A 1996-11-21 1997-11-12 Dispositif d'arrêt automatique d'un moteur entraínant un tube d'enroulement d'un volet roulant Expired - Lifetime EP0844362B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9614202A FR2755998B1 (fr) 1996-11-21 1996-11-21 Dispositif d'arret automatique d'un moteur entrainant un tube d'enroulement d'un volet roulant
FR9614202 1996-11-21

Publications (2)

Publication Number Publication Date
EP0844362A1 EP0844362A1 (fr) 1998-05-27
EP0844362B1 true EP0844362B1 (fr) 2003-03-26

Family

ID=9497851

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97810863A Expired - Lifetime EP0844362B1 (fr) 1996-11-21 1997-11-12 Dispositif d'arrêt automatique d'un moteur entraínant un tube d'enroulement d'un volet roulant

Country Status (6)

Country Link
EP (1) EP0844362B1 (ja)
JP (1) JP4242466B2 (ja)
AT (1) ATE235652T1 (ja)
DE (1) DE69720144T2 (ja)
ES (1) ES2116961T3 (ja)
FR (1) FR2755998B1 (ja)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2785274B1 (fr) * 1998-11-02 2000-12-29 Fermetures Henri Peyrichou Dispositif d'arret automatique de la manoeuvre d'un element enroulable motorise
FR2790032B1 (fr) * 1999-02-19 2001-05-18 Adf Dispositif pour arreter en fonction d'un couple de declenchement variable, un moteur entrainant un tube d'enroulement d'un volet roulant
FR2808555B1 (fr) * 2000-05-05 2002-11-29 Eveno Fermetures Perfectionnement aux volets roulants
FR2835117B1 (fr) * 2002-01-18 2004-05-07 Daniel Bracq Dispositif d'arret automatique pour un moteur electrique loge dans un tube rotatif plus particulierement destine a actionner un volet roulant
FR2851380A1 (fr) * 2003-02-17 2004-08-20 Daniel Bracq Dispositif d'arret automatique pour un moteur electrique loge dans un tube rotatif plus particulierement destine a actionner un volet roulant ou un store
FR2855205B1 (fr) * 2003-05-23 2005-07-08 Somfy Sas Dispositif d'entrainement pour volet roulant ou analogue
EP2218866A1 (de) 2009-02-06 2010-08-18 ProVita Verwaltung GmbH Antriebs- und Steuereinrichtung für Rollläden oder Rolltore
KR102518024B1 (ko) 2015-04-14 2023-04-06 듀폰 도레이 스페셜티 머티리얼즈 가부시키가이샤 폴리에테르-폴리실록산 블록 공중합체 조성물, 이를 포함하는 계면활성제, 정포제, 폴리우레탄 발포체 형성 조성물, 화장료 및 이의 제조 방법
DE102015118492A1 (de) 2015-10-29 2017-05-04 Becker-Antriebe Gmbh Vorrichtung zur Endabschaltung einer motorischen Antriebsvorrichtung einer Wickelwelle eines Rollladens

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3933266A1 (de) * 1989-10-05 1991-01-31 Baumann Rolladen Verfahren zur steuerung eines elektromotors fuer einen rolladen, insbesondere faltrolladen und steuereinheit hierfuer
DE4230729A1 (de) * 1991-09-24 1993-03-25 Selve Ernst Gmbh Co Kg Vorrichtung zur antriebsabschaltung des motors elektrisch betriebener rollaeden, rolltore, markisen o. dgl.
DE4433797A1 (de) * 1994-09-22 1996-03-28 Gottlieb Klenk Vorrichtung zur selbsttätigen Endabschaltung eines Rollvorhangs, insbesondere eines Rolladenpanzers

Also Published As

Publication number Publication date
EP0844362A1 (fr) 1998-05-27
JPH10169337A (ja) 1998-06-23
ATE235652T1 (de) 2003-04-15
FR2755998A1 (fr) 1998-05-22
JP4242466B2 (ja) 2009-03-25
ES2116961T3 (es) 2003-12-01
DE69720144D1 (de) 2003-04-30
FR2755998B1 (fr) 1999-01-22
ES2116961T1 (es) 1998-08-01
DE69720144T2 (de) 2004-01-08

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