EP3702574A1 - Dispositif de pare-soleil - Google Patents

Dispositif de pare-soleil Download PDF

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Publication number
EP3702574A1
EP3702574A1 EP20159058.5A EP20159058A EP3702574A1 EP 3702574 A1 EP3702574 A1 EP 3702574A1 EP 20159058 A EP20159058 A EP 20159058A EP 3702574 A1 EP3702574 A1 EP 3702574A1
Authority
EP
European Patent Office
Prior art keywords
locking end
detent
slats
lifting shaft
spring
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.)
Granted
Application number
EP20159058.5A
Other languages
German (de)
English (en)
Other versions
EP3702574B1 (fr
Inventor
Luca BETTOLI
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.)
Lupak Metal SRL
Original Assignee
Lupak Metal SRL
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lupak Metal SRL filed Critical Lupak Metal SRL
Priority to HRP20230211TT priority Critical patent/HRP20230211T1/hr
Publication of EP3702574A1 publication Critical patent/EP3702574A1/fr
Application granted granted Critical
Publication of EP3702574B1 publication Critical patent/EP3702574B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
    • E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
    • E06B9/32—Operating, guiding, or securing devices therefor
    • E06B9/322—Details of operating devices, e.g. pulleys, brakes, spring drums, drives
    • 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
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
    • E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
    • E06B9/302—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable without ladder-tape, e.g. with lazy-tongs, with screw spindle
    • 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
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
    • E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
    • E06B9/32—Operating, guiding, or securing devices therefor
    • E06B9/322—Details of operating devices, e.g. pulleys, brakes, spring drums, drives
    • E06B2009/3222—Cordless, i.e. user interface without cords
    • 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
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
    • E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
    • E06B9/303—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable with ladder-tape
    • E06B9/307—Details of tilting bars and their operation
    • 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
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
    • E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
    • E06B9/303—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable with ladder-tape
    • E06B9/308—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable with ladder-tape with coaxial tilting bar and raising shaft

Definitions

  • This invention relates to a sunshade apparatus.
  • Sunshade apparatuses are used to control the brightness of a room interior by screening the light rays which filter through windows.
  • Sunshade apparatuses comprise a plurality of slats which are guided by a first and a second guide to slide along a direction of movement, generally parallel to the vertical direction.
  • the plurality of slats is also orientable about a tilt axis parallel to a longitudinal direction along which they have their maximum extension. Varying the slat tilt also varies the level of screening from the light rays.
  • the slats can be oriented between a first limit position (fully open position), where they are parallel to each other and perpendicular to the vertical direction, and a second limit position (closed position) where they are substantially parallel to each other and parallel to the vertical direction. At the second limit position, the slats are also in contact with each other.
  • a single lifting shaft is used to transmit the rotation responsible for lowering the sunshade and tilting the slats.
  • a clutch has to be provided to disengage the motion of the lifting shaft from the slat tilting system when the slats have reached the first or the second limit position.
  • sunshade apparatuses of this kind when the sunshade apparatus is lowered to an intermediate position, slat tilt can be varied by rotating the lifting shaft in a rotation direction for retracting the sunshade through an angle of rotation of the lifting shaft corresponding to the desired variation of tilt (the variation along the vertical direction is negligible).
  • the closer the slats are to the second limit position the more the adjustment range at intermediate positions increases.
  • the clutch is disengaged when slat tilt is less than the second limit position.
  • a disengagement lever which contributes to disengaging the lifting shaft from the tilting system is moved by a spring tab which is tripped when the sunshade is at a certain vertical height.
  • the aim of this disclosure is to provide a sunshade apparatus and a method for tilting a plurality of slats to overcome the above mentioned disadvantages of the prior art.
  • this disclosure provides a sunshade apparatus.
  • the sunshade apparatus comprises a plurality of slats. Each slat of the plurality of slats tilts about a tilt axis parallel to a longitudinal direction. Each slat of the plurality of slats has a first and a second end. The first and the second end are operatively coupled to a first and a second lateral guide, respectively. The first and second lateral guides are configured to guide the slats along a direction of movement. In an embodiment, the direction of movement is transverse to the longitudinal direction.
  • the sunshade apparatus comprises a motor.
  • the apparatus comprises a lifting shaft.
  • the lifting shaft is coupled to the motor.
  • the sunshade apparatus comprises a tilt pulley.
  • the tilt pulley is connected to the slats to rotate them about the respective tilt axes.
  • the apparatus comprises a clutch.
  • clutch (or coupling, or rotary connector) is used to extend the scope of protection to any mechanical component capable of connecting in rotation with each other two mechanical parts, be they coaxial or one surrounding the other.
  • the apparatus comprises a spring clutch.
  • the spring clutch surrounds the lifting shaft.
  • the spring clutch is interposed between the lifting shaft and the tilt pulley along a radial direction perpendicular to an axis of rotation of the lifting shaft.
  • the spring clutch includes a first locking end.
  • the spring clutch includes a second locking end.
  • the first and second locking ends are each movable along a respective working trajectory.
  • the working trajectory is the trajectory in space defined by the respective locking end when the lifting shaft is set in rotation.
  • the spring clutch is fixed to the tilt pulley to constrain it in rotation to the lifting shaft. In an embodiment, the spring clutch is selectively fixable to the shaft to constrain it in rotation to the lifting pulley. In an embodiment, the apparatus comprises a detent system.
  • the detent system comprises a first detent.
  • the first detent is configured to intercept the first locking end of the spring clutch (in a first rotation direction of the lifting shaft).
  • the detent system comprises a second detent.
  • the second detent is configured to intercept the second locking end of the spring clutch.
  • the second detent is configured to intercept the second locking end of the spring clutch in a second rotation direction of the lifting shaft.
  • the second rotation direction is opposite to the first rotation direction.
  • the detent system comprises a third detent.
  • the third detent is configured to intercept the first locking end.
  • the third detent is configured to intercept the first locking end at an intermediate position. In an embodiment, the intermediate position is located along the working trajectory of the first locking end, upstream of the first detent in the first rotation direction of the lifting shaft.
  • the sunshade apparatus comprises a release element.
  • the release element is movable between an activated position and a deactivated position. At the activated position, the release element is in contact with the first locking end of the spring clutch to move it. At the deactivated position, the release element is clear of the first locking end. The presence of the release element allows the first locking end to move out of alignment with the detents so that the clutch can be engaged as required.
  • the release element is configured to cause the first locking end to move away from the third detent.
  • the movement away from the third detent allows the first locking end to continue turning in the first rotation direction towards the first detent along the respective working trajectory. That means the slats are kept in a safe tilted condition so that they do not damage each other while they are being lowered, until they reach a predetermined vertical height where the first locking end starts turning with the lifting shaft again to tilt the slats until they are completely closed.
  • the release element is configured to cause the first locking end to move longitudinally.
  • the apparatus comprises a control unit, configured to control the sunshade.
  • the control unit is configured to instruct the release element to move from the deactivated position to the activated position, and vice versa.
  • the apparatus comprises a transmission element.
  • the transmission element is connected to the plurality of slats.
  • the transmission element may be a chord or a belt or, preferably, a chain.
  • the apparatus comprises a lifting pulley.
  • the lifting pulley may be a sprocket, a friction drum or any gear capable of transmitting a torque received from the lifting shaft to the transmission element.
  • the lifting pulley is connected to the lifting shaft.
  • the lifting pulley is connected to the transmission element to allow driving the slats along the direction of movement.
  • the release element is connected to the transmission element.
  • the term "connected” is not intended as limited to a direct connection where the release element is positioned on the transmission element.
  • the release element might be located at a fixed position relative to the transmission element.
  • the transmission element might comprise an activating element configured to come into contact with the release element to trip it so it changes from the activated position to the deactivated position.
  • the release element is positioned on the transmission element. In an embodiment, the release element is positioned on the transmission element at a release position. That way, the release element is configured to intercept the first locking end at a limit position of the slats along the direction of movement.
  • total unwinding length is used to mean the distance between the last slat when the apparatus is fully retracted and the last slat when the apparatus is fully extended. The unwinding length may also be defined in relation to a specific position of the slats along the direction of movement: that is to say, as the distance between the last slat when the apparatus is fully retracted and the last slat is at the specific position along the direction of movement.
  • the limit position of the slats is the position along the direction of movement corresponding to an unwinding length greater than half the total unwinding length. In an embodiment, the limit position of the slats is the position along the direction of movement corresponding to an unwinding length whose ratio to the total unwinding length is greater than 7:10. In an embodiment, the limit position of the slats is the position along the direction of movement corresponding to an unwinding length whose ratio to the total unwinding length is greater than 8:10. That way, it is possible to prevent contact between the slats for a large part of the downstroke of the apparatus.
  • the release element is a wedge.
  • the first locking end is at a locked position, in contact with the first detent, when the second locking end is at a free position, where the second locking end is free to move along the respective working trajectory. In other words, when the first locking end is in contact with the first detent or with the third detent, the second locking end is detached from (or, in any case, does not strike) the second detent. In an embodiment, the second locking end is at a locked position, in contact with the second detent, when the first locking end is at a free position, where the first locking end is free to move along the respective working trajectory. In other words, when the second locking end is in contact with the second detent, the first locking end is detached from (or, in any case, does not strike) the third detent.
  • the detent system comprises a locking wall.
  • the locking wall surrounds the lifting shaft.
  • the locking wall comprises a first guide.
  • the first locking end is slidable on the first guide to define the respective working trajectory.
  • the locking wall comprises a second guide.
  • the second locking end is slidable on the second guide to define the respective working trajectory.
  • the first guide comprises a first limit stop, defining the first detent.
  • the second guide comprises a second limit stop, defining the second detent.
  • the first and the second limit stops are defined by an end piece (limit stop) of the first and second guides, respectively.
  • the working trajectory of the first locking end comprises a first circular stretch.
  • the working trajectory of the first locking end comprises a second circular stretch.
  • the working trajectory comprises a third stretch, extending in a longitudinal direction.
  • the second circular stretch is longitudinally offset relative to the first circular stretch. The first circular stretch is connected to the second circular stretch by the third stretch.
  • the clutch comprises a first spring.
  • the first spring has a respective first end piece which defines the first locking end.
  • the first spring has a respective second end piece which is connected to the tilt pulley.
  • the clutch comprises a second spring.
  • the second spring has a respective first end piece which is connected to the tilt pulley.
  • the second spring has a respective second end piece which defines the second locking end.
  • the tilt pulley is disposed along the longitudinal direction, at an intermediate position between the first spring and the second spring.
  • the apparatus comprises a connecting mechanism, configured to connect the tilt pulley to the slats.
  • the connecting mechanism comprises a cord.
  • the cord has a first branch and a second branch.
  • the connecting mechanism comprises a plurality of rockers.
  • the rockers of the plurality each include a fixing profile. Each fixing profile is connected to a respective slat.
  • the rockers of the plurality each include a first end, connected to the first branch of the cord.
  • the rockers of the plurality each include a second end, connected to the second branch of the cord.
  • this disclosure also provides a method for adjusting the tilt of a plurality of slats in a sunshade apparatus.
  • the method comprises a step of moving the plurality of slats along a direction of movement.
  • the step of moving comprises a step of moving downwards, in which the slats are unwound from a closed position to a fully open position.
  • the step of moving comprises a step of retracting, in which the slats are retracted from the fully open position to the closed position.
  • the method comprises a step of firstly rotating a lifting shaft, connected to a motor, in a first rotation direction.
  • the rotation in the first rotation direction allows moving the plurality of slats along the direction of movement in an unwinding direction.
  • the step of firstly rotating allows performing the step of moving the slats downwards.
  • the method comprises a step of secondly rotating a lifting shaft, connected to a motor, in a second rotation direction, to move the plurality of slats along the direction of movement in a retracting direction.
  • the step of secondly rotating allows performing the step of retracting the slats.
  • the method comprises a step of (selectively) coupling a tilt pulley to the lifting shaft through a clutch.
  • the method comprises a step of providing a tilt pulley coupled to the lifting shaft through a clutch.
  • the clutch may be a spring clutch which includes a first locking end and a second locking end which move along respective working trajectories by effect of a rotation of the lifting shaft.
  • the method comprises a step of rotating the tilt pulley.
  • the method comprises a step of first disengaging of the spring clutch.
  • first disengaging of the spring clutch when the lifting shaft rotates in the first rotation direction and a first detent intercepts the first locking end.
  • the method comprises a step of second disengaging of the spring clutch.
  • the step of second disengaging of the spring clutch when the lifting shaft rotates in the second rotation direction and a second detent intercepts the second locking end.
  • the method comprises a step of third disengaging of the spring clutch, when the lifting shaft rotates in the first rotation direction and a third detent intercepts the first locking end at an intermediate position along the working trajectory of the first locking end upstream of the first detent in the first rotation direction.
  • the step of third disengaging allows the slats to not reach the fully closed position as soon as they start moving downwards.
  • the method comprises a step of releasing.
  • a release element In the step of releasing, a release element is moved from a deactivated position, where it is clear of the first locking end, to an activated position, where it moves the first locking end of the spring clutch to set the tilt pulley in rotation again.
  • the step of releasing allows the slats to delay their being fully closed.
  • the release element in the step of releasing, touches the first locking end and causes it to move longitudinally.
  • the second locking end, in the step of first disengaging is free to move along a second guide.
  • the first locking end, in the step of second disengaging is free to move along a first guide.
  • the spring clutch comprises a spring assembly, including a first spring, defining the first locking end, and a second spring, defining the second locking end and connected in series to the first spring. In this embodiment, when the first spring strikes the first detent or the third detent, the first spring and the second spring are released and disengage the tilt pulley from the lifting shaft. In this embodiment, when the second spring strikes the second detent, the first spring and the second spring are released and disengage the tilt pulley from the lifting shaft.
  • the numeral 1 denotes a sunshade apparatus.
  • the apparatus 1 comprises a housing.
  • the housing 2 comprises a base support 21.
  • the housing comprises a cover 22.
  • the cover 22 is coupled to the base support 21.
  • the cover 22 has a circular shape.
  • the cover 22 has a prismatic shape.
  • the cover 22 comprises a first guide 22A.
  • the cover 22 comprises a second guide 22B.
  • the first guide 22A and the second guide 22B on the cover 22 are spaced from each other along a longitudinal direction L.
  • the apparatus comprises a plurality of slats 100.
  • the plurality of slats 100 is configured to move along a direction of movement S, perpendicular to the longitudinal direction L and parallel to the direction of the weight force.
  • Each slat of the plurality of slats 100 is configured to rotate about a respective tilt axis I, parallel to the longitudinal direction L, in such a way as to vary its orientation.
  • Each slat of the plurality of slats 100 comprises a first end 100A and a second end (not illustrated).
  • the apparatus comprises a lifting shaft 3.
  • the apparatus comprises a motor 4.
  • the motor 4 is connected to the lifting shaft 3 to set it in rotation.
  • the apparatus comprises a lifting pulley 5.
  • the lifting pulley 5 is connected to the lifting shaft 3 to rotate as one therewith.
  • the lifting pulley 5 is connected to the lifting shaft 3 by a grooved profile 51.
  • the grooved profile 51 engages a matching groove 31 on the lifting shaft 3.
  • the lifting pulley 5 comprises a toothed portion 52.
  • the apparatus 1 comprises a transmission element 6.
  • the transmission element 6 is a chain.
  • the toothed portion 52 of the lifting pulley 5 is coupled to the transmission element 6 to transmit a drive torque which it receives from the motor 4.
  • the transmission element 6 is connected to the plurality of slats 100 to move them along the direction of movement S.
  • the plurality of slats 100 is movable along the direction of movement S with the first end 100A and the second end engaged in a first and a second guide which are, respectively, parallel to the direction of movement S.
  • the apparatus comprises a tilt pulley 7.
  • the lifting pulley is coaxial with the lifting shaft 3.
  • the lifting pulley 7 is selectively constrained to the lifting shaft 3 in rotation.
  • the lifting pulley 7 comprises a plurality of teeth 71, extending along the radial direction relative to the axis of rotation of the lifting shaft 3.
  • the plurality of teeth 71 is disposed on a first circular crown 71A of the tilt pulley 7 and on a second circular crown 71B of the tilt pulley 7, spaced from each other along the longitudinal direction L.
  • the first circular crown 71A and the second circular crown 71B are angularly offset about the axis of rotation of the lifting shaft 3. This offset between the first circular crown 71A and the second circular crown 71B defines catch zones 72 which are spaced along the circumference of the tilt pulley 7.
  • the apparatus comprises a connecting mechanism 8.
  • the connecting mechanism 8 is configured to connect the plurality of slats 100 to the tilt pulley 7.
  • the connecting mechanism 8 comprises a cord 81.
  • the cord is trained around the tilt pulley 7.
  • the cord comprises a first branch 81A and a second branch 81B.
  • the cord 81 comprises a plurality of detents 82 connected thereto and spaced from each other along the cord 81.
  • each catch zone 72 of the tilt pulley 7 is coupled to a respective detent 82 of the plurality to engage the cord 81 and transmit a torque supplied by the motor 4.
  • the connecting mechanism 8 comprises a plurality of rockers 83.
  • Each rocker 83 of the plurality is connected to a respective slat 100 of the plurality.
  • each rocker 83 comprises a respective fixing profile 83A, a respective first connecting end 83B and a respective second connecting end 83C.
  • the fixing profile 83A is connected to the respective slat 100.
  • the first connecting end 83B is connected to a respective detent 82, which is disposed on the first branch 81A of the cord 81.
  • the second connecting end 83C is connected to a respective detent 82, which is disposed on the second branch 81B of the cord 81.
  • each rocker 83 is configured to rotate the respective slat 100 about the respective tilt axis I when the tilt pulley 7 rotates.
  • a fixing system is used whereby sliders that are slidably coupled to the slat are moved, as described, for example, in patent document WO2016/103123A1 , in the name of this Applicant and incorporated herein by reference.
  • the slat 100 (each slat 100) is provided with a pair of through holes at each end of it.
  • the pair of through holes is located in a zone of the slat which, in use, is superposed on the respective fixing profile 83A (or supporting foot, or movement element).
  • the apparatus 1 (or the system for fixing the slats 100 to the respective fixing profiles 83A) comprises, for each slat 100, a first and a second locking element which are removably connectable to the slat 100 and to the respective fixing profile 83A to lock the slat 100 and the respective fixing profile 83A securely (but removably) to each other.
  • the first and second locking elements each include a pair of pins connected to a bridge; the bridge extends along a first direction and the pins are spaced from each other along the first direction; the pins protrude from the bridge in the same direction, transversely to the first direction.
  • the pins are connected to opposite ends of the bridge.
  • each locking element is configured to be inserted (preferably snugly or, if necessary, pressure fitted) into a respective pair of through holes on the slat 100 (that is to say, they are configured to be engaged in a respective pair of through holes in the slat 100).
  • the apparatus 1 (or the system for fixing the slats 100 to the respective fixing profiles 83A) might also comprise, for each slat 100, a first and a second locking counter-element, configured to be removably connected to a respective locking element; in use, when the locking counter-element is coupled to the respective locking element, a portion of the slat 100 and a portion of the fixing profile 83A are interposed between the (bridge of the) locking element and the respective locking element.
  • the locking counter-element includes a plate defining two hollows (or holes, either through holes or blind holes). The hollows are shaped to receive the pins of the locking element (by slotting or pressure fitting). The hollows of the locking counter-element are spaced at the same spacing as the pins of the locking element. Preferably, the spacing is at least 5 mm and, still more preferably, is at least 10 mm.
  • the embodiment for connecting the slat 100 to the fixing profiles 83A of the rockers 83 is advantageous because it allows the slats 100 to be connected to the fixing profiles 83A quickly and easily, securing the slats 100 particularly firmly to the respective fixing profiles 83A.
  • this disclosure also provides a system for fixing the slats 100 to the respective fixing profiles 83A in a sunshade apparatus and a sunshade apparatus provided with this fixing system, according to one or more of the features described above.
  • this disclosure provides a sunshade apparatus comprising: at least one slat 100 having two pairs of through holes at the opposite ends of it; at least one fixing profile 83A configured to be coupled to one end of the slat (to constitute a movement element for moving the slat 100); (at least) a first and a second locking element, configured to engage respective pairs of holes of the slat 100 to lock the slat securely and removably to the respective fixing profile 83A.
  • the locking counter-elements and, if necessary, one or more of the features described above are also used.
  • This disclosure provides a method for assembling a slat 100 in a sunshade apparatus 1 having at least one movement element for moving a fixing profile 83A and a locking element for removably connecting the slat 100 to the fixing profile 83A.
  • the method comprises the following steps: preparing two pairs of through holes at opposite ends of each slat 100; positioning the slat 100 to rest on a first and a second fixing profile 83A in such a way that each pair of holes is superposed on a portion of the respective fixing profile 83A; coupling a first and a second locking element to the slat 100 by engaging each first and second locking element to a respective pair of holes of the slat 100 to lock the slat securely and removably to the respective fixing profile 83A.
  • the locking counter-elements and, if necessary, one or more of the features described above are also used.
  • the apparatus 1 comprises a detent system.
  • the detent system 9 is defined by a cover 22 of the housing 2.
  • the detent system 9 comprises a first detent 91 and/or a second detent 92 and/or a third detent 93.
  • the first guide 22A is defined by a first groove on the cover 22 having a respective perimeter.
  • the perimeter of the first groove comprises a first longitudinal stretch, a second longitudinal stretch and a third longitudinal stretch.
  • the first longitudinal stretch of the first groove defines the first detent 91.
  • the third longitudinal stretch of the first groove defines the third detent 93.
  • the second guide 22B is defined by a second groove on the cover 22 having a respective perimeter.
  • the perimeter of the second groove comprises a respective first longitudinal stretch and a respective second longitudinal stretch.
  • the first longitudinal stretch of the second groove defines the second detent 92.
  • the apparatus comprises a clutch.
  • the clutch comprises a first locking end and a second locking end.
  • the clutch may be a spring clutch 10.
  • the spring clutch 10 is connected to the tilt pulley 7.
  • the spring clutch 10 is connected to the lifting shaft 3.
  • the spring clutch 10 is pre-compressed.
  • the spring clutch 10 comprises a first spring 11 and a second spring 12.
  • the first spring 11 and/or the second spring 12 are preloaded.
  • the first spring 11 and/or the second spring 12 are torsion springs and are fitted round the lifting shaft 3.
  • the first spring 11 and the second spring 12 are smaller in diameter than the lifting shaft 3 so that when they are fitted on it they exert a radial force on it which increases a frictional force between the spring clutch and the lifting shaft 3.
  • first spring 11 and the second spring 12 each comprise a respective first end piece 11A, 12A and second end piece 11B, 12B.
  • the first end piece 11A of the first spring 11 defines the first locking end of the spring clutch 10.
  • the second end piece 12B of the first spring 12 defines the second locking end of the spring clutch 10.
  • the second end piece 11B of the first spring 11 is connected to the tilt pulley 7.
  • the first end piece 12A of the second spring 12 is connected to the tilt pulley 7.
  • the first end piece 11A of the first spring 11 is configured to move on the first guide 22A along a respective working trajectory defined by the rotation of the lifting shaft 3.
  • the second end piece 12B of the second spring 12 is configured to move on the second guide 22B along a respective working trajectory defined by the rotation of the lifting shaft 3.
  • the first detent 91 is configured to intercept the first end piece 11A of the first spring 11 when the lifting shaft rotates in a first rotation direction V1.
  • the third detent 93 is configured to intercept the first end piece 11A of the first spring 11 when the lifting shaft rotates in a first rotation direction V1 at a position upstream of the first detent 91 along the working trajectory in the first rotation direction V1.
  • the second detent is configured to intercept the second end piece 12B of the second spring 12 when the lifting shaft rotates in a second rotation direction V2.
  • the apparatus 1 comprises a release element 60.
  • the release element 60 is movable between an activated position, where it is in contact with the first end piece 11A of the first spring 11, and a deactivated position, where it is clear of the first end piece 11A of the first spring 11.
  • the release element 60 is configured to move the first end piece 11A of the first spring 11.
  • the release element is configured to move the first end piece 11A of the first spring 11 longitudinally to allow the first end piece 11A of the first spring 11 to bypass the third detent 93 and continue along the working trajectory as far as the first detent 91.
  • the release element is a wedge 61.
  • the wedge 61 is connected to the transmission element 6.
  • the wedge is connected to the side of the transmission element which faces the first end piece 11A of the first spring 11.
  • the wedge 61 is connected to the cover 22 and/or to the base support 21. In this embodiment, the wedge may be activated by the transmission element 6.
  • the wedge 61 is positioned on the transmission element 6 at a predetermined position so that it comes into contact with (moves, preferably along the longitudinal direction L) the first end piece 11A of the first spring 11 at position along the direction of movement S where the slats 100 are almost fully extended.
  • the apparatus comprises a tongue.
  • the tongue is coupled to the fixing profile 83A to allow the slat 100 to be connected to the respective rocker 83.
  • the fixing profile 83A comprises two openings.
  • the tongue comprises two tabs.
  • each of the two tabs is configured to be coupled to a respective opening of the fixing profile 83A.
  • this disclosure also provides a method for tilting a plurality of slats in a sunshade apparatus.
  • the method comprises a step of moving a plurality of slats 100 along a direction of movement S.
  • the step of moving comprises a step of moving the plurality of slats 100 downwards. In the step of moving downwards, the slats 100 are extended from an upper limit position, where the slats 100 are closely packed together, to a lower limit position, where the slats 100 are fully extended.
  • the step of moving comprises a step of retracting the plurality of slats 100. In the step of retracting, the slats 100 are retracted from the lower limit position to the upper limit position.
  • the method comprises a step of guiding, in which a first and a second end of each slat of the plurality 100 are guided, as they move downwards and/or are retracted, by a first and a second lateral guide, respectively.
  • the method comprises a step of rotating a lifting shaft 3.
  • the step of rotating comprises a first step of rotating and a second step of rotating.
  • the lifting shaft 3 rotates in a first rotation direction V1.
  • the lifting shaft 3 rotates in a second rotation direction V2.
  • the rotation of the lifting shaft 3 is functional to the downward movement and retraction of the slats 100.
  • the first step of rotating contributes to the step of moving the slats 100 downwards.
  • the second step of rotating contributes to the step of retracting the slats 100.
  • the method comprises a step of interlocking, in which the lifting shaft is constrained in rotation to a lifting pulley 5, responsible for the movement along the direction of movement S.
  • the lifting shaft 3 is moved by a motor 4.
  • the lifting pulley 5 rotates as one with the lifting shaft 3.
  • the lifting pulley 5 entrains in rotation a transmission element 6 which is connected to the plurality of slats 100 to move them along the direction of movement S.
  • the method comprises a step of engaging (coupling) the lifting shaft 3 to a tilt pulley 7.
  • the tilt pulley 7 is responsible for tilting the plurality of slats 100 about a tilt axis I which is parallel to the axis of rotation of the lifting shaft 3.
  • a clutch - preferably a spring clutch 10 - surrounds the lifting shaft 3.
  • the spring clutch 10 exerts a force on the lateral surface of the lifting shaft 3, in practice creating a coupling by pressure (by friction).
  • the spring clutch is constrained to the tilt pulley 7, which is coaxial with the lifting shaft 3.
  • the spring clutch 10 comprises a first spring 11 and a second spring 12.
  • the first spring 11 and the second spring 12 are constrained to the tilt pulley 7.
  • a second end piece 11B of the first spring 11 is connected to the tilt pulley 7.
  • a first end piece 12A of the second spring 12 is connected to the tilt pulley 7.
  • the step of engaging comprises a step of preloading the spring clutch 10.
  • the first spring 11 and the second spring 12 are preloaded.
  • the tilt pulley 7, the lifting shaft 3 and the spring clutch 10 rotate as one for at least an angle of rotation of the lifting shaft 3.
  • the method comprises a step of tilting.
  • the tilt pulley 7 rotates to tilt the slats 100 about the tilt axis I.
  • a cord 81 is entrained by the tilt pulley 7.
  • the cord 81 is connected to the tilt pulley 7 by a plurality of detents 82, coupled to respective catch zones 72 of the tilt pulley 7.
  • a first branch 81A and a second branch 81B slide on the tilt pulley 7 to tilt the slats 100.
  • a plurality of rockers 83 rotates to tilt the plurality of slats 100.
  • each rocker of the plurality of rockers 83 is connected to the first branch 81A of the cord 81 at a first connecting end 83B and to the second branch 81B of the cord 81 at a second connecting end 83C.
  • each rocker of the plurality of rockers 83 also entrains in rotation the corresponding slat 100 to which it is connected by a fixing profile 83A.
  • the method comprises a first step of disengaging.
  • a first locking end of the clutch strikes a first detent 91 of a detent system 9.
  • a first end piece 11A of the first spring 11 of the spring clutch 10 strikes the first detent 91.
  • the first locking end of the clutch strikes the first detent 91 of the detent system 9 when the lifting shaft 3 rotates in the first rotation direction V1.
  • the method comprises a second step of disengaging.
  • a second locking end of the clutch strikes a second detent 92 of a detent system 9.
  • a second end piece 12B of the second spring 12 of the spring clutch 10 strikes the second detent 92.
  • the second locking end of the clutch strikes the second detent 92 of the detent system 9 when the lifting shaft 3 rotates in the second rotation direction V2.
  • the method comprises a third step of disengaging.
  • the first locking end of the clutch strikes a third detent 93 of the detent system 9.
  • a first end piece 11A of the first spring 11 of the spring clutch 10 strikes the third detent 93.
  • the first locking end of the clutch strikes the third detent 93 of the detent system 9 when the lifting shaft 3 rotates in the first rotation direction V1 and at a position upstream of the first detent along a working trajectory of the first locking end in the rotation direction V1.
  • the tilt pulley 7 rotates as one with the lifting shaft 3 until the first locking end (the first end piece 11A of the first spring 11 of the spring clutch 10) of the clutch meets the third detent 93.
  • the spring clutch 10 is released, thus disengaging the lifting shaft 3 from the tilt pulley 7.
  • the method comprises a step of re-engaging.
  • a release element 60 moves the first locking end (the first end piece 11A of the first spring 11 of the spring clutch 10) to allow it to bypass the third detent 93.
  • the release element 60 moves the first locking end along the longitudinal direction L.
  • a wedge 61 release element 60 located on the transmission element 6 moves the first locking end (the first end piece 11A of the first spring 11 of the spring clutch 10) longitudinally.
  • the clutch is once again engaged with the lifting shaft 3, thereby setting the tilt pulley 7 in rotation again to continue the tilting of the slats 100 to completion, until it strikes the first detent 91.
  • the spring clutch 10 is released and disengages the tilt pulley 7 from the lifting shaft 3. In effect, the slats 100 are tilted as much as possible and further rotation would damage the slats 100.
  • the step of retracting is started.
  • the second locking end (the second end piece 12B of the second spring 12 of the spring clutch 10) is not in contact with the second detent and thus the tilt pulley 7 rotates as one with the lifting shaft 3 until the second locking end (the second end piece 12B of the second spring 12 of the spring clutch 10) meets the second detent 92.
  • the second locking end (the second end piece 12B of the second spring 12 of the spring clutch 10) meets the second detent 92 when the slats have already reached their minimum tilt, necessary to retract and gather up all the slats 100.
  • the step of retracting continues with the slats kept at constant tilt.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Blinds (AREA)
  • Polarising Elements (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
EP20159058.5A 2019-02-26 2020-02-24 Dispositif de pare-soleil Active EP3702574B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
HRP20230211TT HRP20230211T1 (hr) 2019-02-26 2020-02-24 Uređaj za zaštitu od sunca

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102019000002755A IT201900002755A1 (it) 2019-02-26 2019-02-26 Apparato frangisole

Publications (2)

Publication Number Publication Date
EP3702574A1 true EP3702574A1 (fr) 2020-09-02
EP3702574B1 EP3702574B1 (fr) 2023-01-11

Family

ID=66641300

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20159058.5A Active EP3702574B1 (fr) 2019-02-26 2020-02-24 Dispositif de pare-soleil

Country Status (6)

Country Link
EP (1) EP3702574B1 (fr)
ES (1) ES2939535T3 (fr)
HR (1) HRP20230211T1 (fr)
IT (1) IT201900002755A1 (fr)
PL (1) PL3702574T3 (fr)
PT (1) PT3702574T (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3651852A (en) * 1969-08-25 1972-03-28 Griesser Ag Ruffled blind construction
EP1052365A2 (fr) * 1999-05-11 2000-11-15 Hunter Douglas Industries B.V. Dispositif d'entraínement pour un store vénitien
EP2224091A2 (fr) 2009-02-27 2010-09-01 Griesser Holding AG Culbuteur pour stores à éléments lamellaires
WO2016103101A1 (fr) * 2014-12-23 2016-06-30 Lupak Metal S.R.L. Appareil de type pare-soleil et son procédé d'utilisation
WO2016103123A1 (fr) 2014-12-23 2016-06-30 Lupak Metal S.R.L. Appareil de pare-soleil et procédé d'assemblage de lame de pare-soleil

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3651852A (en) * 1969-08-25 1972-03-28 Griesser Ag Ruffled blind construction
EP1052365A2 (fr) * 1999-05-11 2000-11-15 Hunter Douglas Industries B.V. Dispositif d'entraínement pour un store vénitien
EP2224091A2 (fr) 2009-02-27 2010-09-01 Griesser Holding AG Culbuteur pour stores à éléments lamellaires
WO2016103101A1 (fr) * 2014-12-23 2016-06-30 Lupak Metal S.R.L. Appareil de type pare-soleil et son procédé d'utilisation
WO2016103123A1 (fr) 2014-12-23 2016-06-30 Lupak Metal S.R.L. Appareil de pare-soleil et procédé d'assemblage de lame de pare-soleil

Also Published As

Publication number Publication date
PL3702574T3 (pl) 2023-03-27
IT201900002755A1 (it) 2020-08-26
ES2939535T3 (es) 2023-04-24
PT3702574T (pt) 2023-03-03
HRP20230211T1 (hr) 2023-04-14
EP3702574B1 (fr) 2023-01-11

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