EP3536890B1 - Sunshade apparatus and method for its use - Google Patents

Sunshade apparatus and method for its use Download PDF

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Publication number
EP3536890B1
EP3536890B1 EP19167805.1A EP19167805A EP3536890B1 EP 3536890 B1 EP3536890 B1 EP 3536890B1 EP 19167805 A EP19167805 A EP 19167805A EP 3536890 B1 EP3536890 B1 EP 3536890B1
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EP
European Patent Office
Prior art keywords
slats
lifting shaft
slat
lifting
movement
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.)
Active
Application number
EP19167805.1A
Other languages
German (de)
English (en)
French (fr)
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EP3536890A1 (en
Inventor
Daniela AMADORI
Carlo Mor
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
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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.)
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Publication date
Application filed by Lupak Metal SRL filed Critical Lupak Metal SRL
Priority to PL19167805T priority Critical patent/PL3536890T3/pl
Priority to SI201531412T priority patent/SI3536890T1/sl
Publication of EP3536890A1 publication Critical patent/EP3536890A1/en
Application granted granted Critical
Publication of EP3536890B1 publication Critical patent/EP3536890B1/en
Priority to HRP20201851TT priority patent/HRP20201851T1/hr
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

Definitions

  • This invention relates to a sunshade apparatus and to a method for its use.
  • This invention relates to the sector of sunshade apparatuses, apparatuses composed of slatted blinds consisting of a plurality of sunshade elements (or slats) configured to screen a room from sunlight so as to allow controlling the amount of light entering the room where the sunshade apparatus is installed.
  • shade apparatus denotes a venetian blind, that is to say, an apparatus provided with horizontal slats which can be oriented horizontally. Venetian blinds can be retracted by lifting and stacking the slats.
  • sunshade apparatuses are configured to move the sunshade slats in such a way as to vary their spacing.
  • sunshade apparatuses are also configured to vary the tilt of the slats so as to dynamically adapt the sunshade to weather conditions and light in different seasons, thus allowing savings in terms of energy spent cooling (in summer, by protecting building facades or room interiors from exposure to direct sunlight) and heating (in winter, by reducing heat loss).
  • the slats usually have an elongate shape in one direction and their tilt is varied by rotating each slat about its longitudinal axis.
  • prior art sunshade apparatuses are retractable, that is to say, they can adopt intermediate configurations between a gathered configuration (where the spacing between the axes of rotation of the slats is at its minimum, the slats are retracted and their overall dimensions minimized) and an extended configuration (where the spacing between the axes of rotation of the slats is at its maximum).
  • Such sunshade apparatuses are also provided with a pair of opposing side guides (a first and a second side guide) configured to guide the slats.
  • a first end is coupled to the first side guide and a second end is coupled to the second side guide, in order to guide the slat in a direction of movement (said movement is a essentially a translation movement).
  • Such sunshade apparatuses comprise a connecting mechanism (or pantograph), typically a ladder-like supporting structure configured to connect the slats to each other and rotate them about their longitudinal axes.
  • the pantograph connects the slats to each other and defines the spacing between the axes of rotation of the slats and is configured to allow simultaneous adjustment of the slatted blind.
  • These sunshade apparatuses generally comprise a lifting shaft coupled to a motor and configured to move and orient the slats of the sunshade apparatus.
  • the lifting shaft has a lift pulley which is coupled to a lifting element: for example, a lift chain.
  • the lift chain is connected to at least one slat, usually the distal slat remote from the lifting shaft (that is, the last or lowermost slat), to move the slats in the direction of movement.
  • Prior art sunshade apparatuses may have a lifting element with an open or closed loop configuration.
  • the lifting element In a sunshade apparatus with an open loop lifting element, the lifting element has a first end and a second end. The first end is usually connected to the last slat, whilst the second end is connected to a counterweight which balances the overall weight of the slats.
  • An example of a sunshade apparatus comprising an open loop lifting element is described in patent document US4324284A .
  • a sunshade apparatus with a closed loop lifting element
  • the lifting element is coupled to a first and a second lift pulley, one of which is connected to the lifting shaft.
  • the lifting element is usually connected to the last slat.
  • An example of a sunshade apparatus comprising a closed loop lift chain is described in patent document EP1936102B1 .
  • sunshade apparatus examples include patent documents DE2034321 and WO2011/099078 .
  • the pantograph is usually coupled to the lifting shaft by means of a tilt element: for example, a tilt chain.
  • a tilt element for example, a tilt chain.
  • the tilt element is fixed to the pantograph at points proximal to the lifting shaft.
  • the coupling between the tilt chain and the lifting shaft usually comprises a second pulley (or tilt pulley), or a rocking element, mounted on the lifting shaft.
  • the lifting shaft has the twofold function both of imparting the motion, by means of the lift chain, by which the slats are driven in the direction of movement and of varying the tilt of the slats by means of the tilt element connected to the pantograph. This may lead to several problems.
  • patent document US4324284A describes a sunshade apparatus with an open loop lifting element, where the tilt element is connected to a rocker located on the lifting shaft.
  • the rocker In passing from the gathered configuration to the extended configuration, the rocker is immediately set in rotation until reaching a predetermined angular position where the rocker stops.
  • the predetermined angular position corresponds to a predetermined slat tilt.
  • a further rotation of the lifting shaft in the extending direction activates a release mechanism which disengages the rocker and allows a further rotation of the slats until reaching a closed configuration, where the slats form a substantially flat surface.
  • the release mechanism described in patent document CH565935 , comprises a pin which locks the rocker when the predetermined angular position is reached.
  • a limit stop element included in the lift chain, actuates a lever which disengages the pin, thus releasing the rocker and allowing the slats to close.
  • Some prior art sunshade apparatuses comprise a connecting structure - for example a lifting carriage - for connecting the lifting element to the last slat and allow the sunshade apparatus to pass from the gathered configuration to the extended configuration.
  • the lifting carriage comprises a first and a second part separated by a spring.
  • a further rotation of the lifting shaft in the extending direction causes the spring to be compressed until bringing together the first and second parts of the lifting carriage, guaranteeing contact of the last slat on a supporting surface and preventing the slats from being lifted manually (in other words, constituting an anti-burglary system).
  • the security of the anti-burglary system depends on the spring which separates the first and second parts of the lifting carriage and whose rigidity and reliability diminish on account of mechanical fatigue caused by frequent use.
  • the aim of this invention is to provide a sunshade apparatus and a method for its use to overcome the above mentioned disadvantages of the prior art.
  • this invention has for an aim to provide a sunshade apparatus and a method for its use which are particularly simple and reliable.
  • a further aim of this invention is to provide a sunshade apparatus and a method for its use which are particularly secure and robust.
  • the sunshade apparatus comprises a plurality of slats, preferably elongate in one direction.
  • Each slat is tiltable about its longitudinal axis, preferably parallel to the direction in which the slat is elongate.
  • the longitudinal axes of the slats are parallel to each other.
  • Each slat has a first and a second end which are operatively coupled to a first and a second lateral guide, configured to guide the slats along a direction of movement (translation).
  • the direction of movement is perpendicular to the longitudinal axes of the slats.
  • the spacing between the sunshade slats is the spacing between the axes of rotation of the slats themselves.
  • the sunshade apparatus comprises a connecting mechanism (or pantograph) configured to connect together the slats and rotate them about their longitudinal axes.
  • the connecting mechanism is a ladder-like structure.
  • the sunshade apparatus also comprises a lifting shaft coupled to a motor.
  • the axis of rotation of the lifting shaft is parallel to the longitudinal axes of the slats.
  • the sunshade apparatus is made up of two mirror-symmetrical parts, both connected to the lifting shaft: the first part is connected to the first end of the slats and the second part is connected to the second end of the slats.
  • first part is connected to the first end of the slats
  • second part is connected to the second end of the slats.
  • first part is connected to the first end of the slats
  • second part is constructionally similar (mirror-symmetrical), unless otherwise specified.
  • the first and second parts are driven by the same lifting shaft.
  • a first lift pulley is mounted on the lifting shaft.
  • a second lift pulley connected to the frame and idle, is coupled to the lift pulley by means of a lifting element - for example, a cable, a belt or, preferably, a lift chain - in a closed loop configuration.
  • the lifting shaft is connected to the last or lowermost slat, distal from the lifting shaft. This connection allows the slats, which are connected to each other by the connecting mechanism, to be moved in the direction of movement when the lifting shaft is rotated.
  • the sunshade apparatus is configured to adopt intermediate configurations between a gathered configuration (where the slat spacing is at its minimum, the slats are retracted and their overall dimensions are minimized) and an extended configuration (where the slat spacing is at its maximum).
  • the sunshade apparatus comprises a tilt pulley connected to the connecting mechanism to actuate it in order to modify the tilt of the slats.
  • the tilt pulley is operatively connected to the lifting shaft by means of a clutch, so that a rotation of the lifting shaft in a first direction causes the tilt pulley to rotate up to a configuration of maximum or minimum tilt of the slats and a further rotation of the lifting shaft in the first direction causes the tilt pulley to slip on the clutch.
  • the slats are in the configuration of maximum tilt (or open configuration) where at least a portion of a surface defined by the slat lies in a plane substantially perpendicular to the direction of movement.
  • a configuration of minimum tilt (or closed configuration) at least a portion of the surface defined by the slat lies in a plane belonging to a bundle of planes generated by the direction of movement.
  • the configurations of maximum and minimum slat tilt are essentially arbitrary. In the example illustrated, in the configuration of minimum tilt, the slats lie in substantially horizontal, parallel planes, whereas in the configuration of maximum tilt, the slats lie in a substantially vertical plane.
  • the slats in passing from the configuration of minimum tilt to that of maximum tilt, perform a rotation through approximately 90 degrees. Slat rotations through different angles - for example greater than 90 degrees - between the configurations of minimum and maximum tilt are also imaginable, however.
  • the tilt pulley is idle relative to the lifting shaft and is connected to the first lift pulley through the clutch interposed between the tilt pulley and the first lift pulley.
  • the clutch comprises an annular friction element which defines at least one contact surface perpendicular to the longitudinal axis of the lifting shaft.
  • the sunshade apparatus comprises a coupling spring configured to press the tilt pulley against the annular friction element.
  • the coupling spring is configured to apply pressure on the at least one contact surface.
  • the sunshade apparatus comprises a stroke limit stop element which rotates as one with the tilt pulley.
  • the stroke limit stop element is configured to stop the tilt pulley from rotating when at least one predetermined angular stroke limit position is reached.
  • the stroke limit stop element is configured to stop the tilt pulley from rotating when at least two predetermined angular stroke limit positions are reached: a first angular stroke limit position, corresponding to the configuration of maximum slat tilt and a second angular stroke limit position, corresponding to the configuration of minimum slat tilt.
  • a rotation of the lifting shaft in an extending rotation direction causes a movement of the slats in the direction of movement, between a gathered configuration and an extended configuration, and causes a corresponding rotation of the slats about their longitudinal axes in the closing rotation direction, from the configuration of maximum tilt to the configuration of minimum tilt.
  • the lifting shaft is coupled to the motor to rotate at a first speed, in a condition of driving the lifting shaft on the tilt pulley, and at a second speed greater than the first, in a condition of slipping of the tilt pulley relative to the lifting shaft.
  • the sunshade apparatus comprises a connecting structure for connecting the lifting element to the last slat.
  • the sunshade apparatus comprises a motor stop device and an activating element configured to activate the stop device to inhibit motor operation.
  • the motor is controlled through an electronic card.
  • the electronic card is connected to the stop device.
  • the electronic card is programmed to keep the motor in an inhibited state for a predetermined length of time in response to a stop signal from the stop device.
  • the electronic card is programmed to restart the motor in reverse direction (for example towards the slat gathered configuration) at the end of the predetermined length of time.
  • the connecting structure defines a clearance, along the direction of movement, between the lifting element and the last slat, so that the last slat is movable between a first and a second position along the direction of movement, relative to a stretch of the lifting element to which it is connected, in order to activate the activation element.
  • the activation element is movable between a deactivated configuration and an active configuration in response to a relative movement of the last slat relative to the lifting element in the direction of gathering the plurality of slats.
  • the connecting structure comprises a lifting carriage fixed to the last slat and movably connected to the lifting element to define the aforementioned clearance.
  • the stop device comprises an emitter and a receiver defining an optical path.
  • the activation element in changing from the deactivated configuration to the active configuration, interrupts the optical path to inhibit operation of the motor.
  • the emitter and the receiver are at fixed positions relative to the first and second lateral guides, aligned along the direction of movement and are spaced by a distance which is greater than or equal to the distance between the first and second lift pulleys.
  • this solution increases the security of the sunshade apparatus, stopping the movement of the slats in the event of a relative movement of the last slat relative to the lifting element in the gathering direction, caused for example by the slats colliding against an obstacle.
  • the sunshade apparatus comprises a proximity sensor configured to detect the presence of the last or lowermost slat at a stroke limit position, distal from the lifting shaft, corresponding to the extended configuration of the sunshade apparatus.
  • the stop device is connected to the proximity sensor to prevent inhibiting the motor when the sunshade apparatus adopts the extended configuration.
  • the proximity sensor is connected to an anti-burglary alarm system configured to come into operation in the event of an attempt to move the slats manually.
  • the lifting element has an active half loop, to which the last slat is connected, and a passive half loop.
  • the active half loop has a first stretch included between the first lift pulley, connected to the last slat by means of the connecting structure, and a zone of connection of the lifting element.
  • the first stretch of the active half loop is tensioned by the weight of the slats when the last slat is in the aforementioned first position relative to the lifting element.
  • a second stretch of the active half loop, included between the second lift pulley and the zone of connection of the lifting element is tensioned by the motor when the last slat is in the aforementioned second position relative to the lifting element.
  • a sunshade apparatus comprising a lifting shaft connected to a motor and kinematically connected to a plurality of slats, pivoted about their longitudinal axes for tilting between a configuration of minimum tilt and a configuration of maximum tilt, and coupled to a first and a second lateral guide to move along a direction of movement between a gathered configuration and an extended configuration.
  • the method comprises the following steps:
  • the method of using the sunshade apparatus comprises a step of inhibiting the operation of the motor in response to a relative movement of the last slat relative to the lifting element along the direction of movement in the direction of gathering the plurality of slats.
  • the inhibiting step comprises stopping the motor for a predetermined length of time.
  • the inhibiting step is followed (after the predetermined length of time) by a step of restarting the motor, preferably in the direction of rotation opposite to its direction prior to stopping.
  • the step of moving the slats between the gathered configuration and the extended configuration corresponds to a first angle of rotation of the lifting shaft and the step of tilting the slats between the maximum and minimum tilt configurations corresponds to a second angle of rotation of the lifting shaft.
  • the second angle of rotation is smaller than the first angle of rotation by at least one order of magnitude.
  • this description provides a method of using a sunshade apparatus. More specifically, the sunshade apparatus is an apparatus comprising a plurality of slats coupled to a first and a second guide to move along a direction of movement between a gathered configuration and an extended configuration.
  • the sunshade apparatus comprises a lifting shaft which is connected to a motor, and a lifting element trained in a closed loop around a first pulley connected to the lifting shaft and around a second pulley.
  • the lifting shaft is coupled to the last or lowermost slat, distal from the lifting shaft.
  • the method comprises the following steps:
  • the step of activating the activation element entails interrupting an optical path parallel to the direction of movement. More specifically, if the sunshade apparatus comprises an emitter and a receiver, the optical path is generated between the emitter and the receiver which are located at fixed positions relative to the first and second lateral guides and spaced by a distance which is greater than or equal to the distance between the first and second lift pulleys.
  • the method of using a sunshade apparatus comprises the following further steps:
  • the numeral 1 denotes a sunshade apparatus according to this description.
  • the sunshade apparatus 1 comprises a plurality of sunshade slats 2 (or slats 2), which make up a slatted blind.
  • the slats 2 are elongate in a longitudinal direction.
  • the sunshade apparatus 1 is configured to space the sunshade slats 2 from each other and to vary their tilt.
  • the tilt of the slat 2 is varied by rotating the slat 2 about the longitudinal axis.
  • the longitudinal axes of the slats 2 making up the slatted screen are parallel to each other. It should be noted that, in this description, the spacing between the sunshade slats 2 is the spacing between the axes of rotation of the slats 2 themselves.
  • the sunshade apparatus 1 is configured to adopt intermediate configurations between a gathered configuration (where the spacing of the slats 2 is at its minimum, the slats 2 are retracted and their overall dimensions are minimized) and an extended configuration (where the spacing of the slats 2 is at its maximum).
  • Each slat 2 has a first and a second end which are operatively coupled to a first and a second lateral guide, respectively.
  • the first and second lateral guides are configured to guide the slats 2 along a direction of movement (translation).
  • the sunshade apparatus 1 is made up of two mirror-symmetrical parts: the first part is connected to the first end of the slats 2 and the second part is connected to the second end of the slats 2.
  • first part is connected to the first end of the slats 2
  • second part is connected to the second end of the slats 2.
  • first part is connected to the first end of the slats 2
  • second part is constructionally similar (mirror-symmetrical), unless otherwise specified.
  • the sunshade apparatus 1 comprises a connecting mechanism 7 (or pantograph 7) configured to connect together the slats 2 and rotate them about their longitudinal axes.
  • the connecting mechanism 7 is a ladder-like load-bearing structure.
  • the connecting mechanism 7 comprises a plurality of levers 7a which are coupled to each other to rotate relative to each other.
  • the pantograph 7 is configured to connect the slats 2 to each other and to define their spacing.
  • the pantograph 7 is also configured to allow adjusting the tilt of the slats 2 simultaneously.
  • the connecting mechanism 7 comprises a plurality of movement elements 4 by which the slats 2 are moved and, in use, each of the elements 4 is integrally coupled to one end of a slat 2.
  • the coupling between a movement element 4 and one end of the slat 2 is accomplished preferably by means of a locking element 23 configured to lock the slat 2 to the movement element 4.
  • each slat 2 comprises at least one guide 5, integral with the slat 2.
  • the guide 5 extends along a longitudinal direction.
  • the locking element 23 can be slidably coupled to the at least one guide 5 so as to be movable along the longitudinal direction between a position of non-interference with the respective movement element 4 and a coupling position where it is locked to the respective movement element 4.
  • each of the locking elements 23 for locking the slat 2 is provided with a protuberance configured to be coupled to the at least one guide 5.
  • each locking element 23 is provided with locking means for locking to the respective movement element 4, configured to allow the locking element 23 to be permanently fixed to the respective movement element 4 in a longitudinal locking direction, and comprising at least one tooth which is elastically deformable during coupling to the respective movement element 4 in the above mentioned locking position.
  • the slats are in the configuration of maximum tilt (or open configuration) where at least a portion of a surface defined by the slat 2 lies in a plane substantially perpendicular to the direction of movement.
  • a configuration of minimum tilt (or closed configuration) at least a portion of a surface defined by the slat 2 lies in a plane belonging to a bundle of planes generated by the direction of movement.
  • the sunshade apparatus 1 comprises a lifting shaft 6 coupled to a motor 13.
  • the first and second parts making up the sunshade apparatus 1 are driven by the same lifting shaft.
  • the axis of rotation of the lifting shaft is perpendicular to the direction of movement and parallel to the longitudinal axes of the slats.
  • a first lift pulley 8 is coupled to the lifting shaft 6 and is connected to a second lift pulley 8a by means of a lifting element 9 - for example, a cable, a belt or, preferably, a lift chain - in a closed loop configuration.
  • the lifting element 9 is connected to at least one slat 2.
  • the lifting element 9 is connected to the slat which is distal from the lifting shaft 6 (that is, the last or lowermost slat 2a), to move the slats 2 in the direction of movement when the lifting shaft 6 is rotated.
  • the lifting shaft 6 In passing from the gathered configuration to the extended configuration, the lifting shaft 6 rotates in an extending rotation direction to move the last slat 2a, and the slats 2 connected thereto by means of the connecting mechanism 7, along the direction of movement, away from the lifting shaft 6.
  • the lifting shaft 6 rotates in a gathering rotation direction to move the last slat 2a, and the slats 2 connected thereto by means of the connecting mechanism 7, along the direction of movement, towards the lifting shaft 6.
  • the rotation of the lifting shaft 6 in the extending rotation direction causes the last slat 2a to move from a first stroke limit position, proximal to the lifting shaft 6, to a second stroke limit position, distal from the lifting shaft 6.
  • the slats 2 are positioned at a maximum spacing permitted by the connecting mechanism 7.
  • the second lift pulley 8a is positioned in proximity to the second stroke limit position of the last slat 2a.
  • the sunshade apparatus 1 comprises a tilt pulley 11, connected to the connecting mechanism 7 to actuate it in order to modify slat tilt.
  • the tilt pulley 11 is coupled to the connecting mechanism 7 by means of a tilt element 12 - for example, a cable, a belt or, preferably, a tilt chain.
  • the tilt element 12 is fixed to the connecting mechanism 7 at points proximal to the lifting shaft 6.
  • the tilt pulley 11 is operatively connected to the lifting shaft 6 by means of a clutch 14, so that a rotation of the lifting shaft 6 in a first direction causes the tilt pulley 11 to rotate up to a configuration of maximum or minimum tilt of the slats 2. A further rotation of the lifting shaft 6 in the first direction causes the tilt pulley 11 to slip on the clutch 14.
  • the tilt pulley 11 is idle relative to the lifting shaft 6 and is connected to the first lift pulley 8 through the clutch 14 interposed between the tilt pulley 11 and the first lift pulley 8.
  • the clutch 14 comprises an annular friction element which defines at least one contact surface perpendicular to the longitudinal axis of rotation of the lifting shaft.
  • the sunshade apparatus 1 comprises a coupling spring 22 configured to press the tilt pulley 11 against the annular friction element.
  • the coupling spring 22 is configured to apply pressure on the at least one contact surface.
  • the sunshade apparatus 1 comprises a stroke limit stop element 15 (or tooth 15), which rotates as one with the tilt pulley 11.
  • the stroke limit stop element 15 is configured to stop the tilt pulley 11 from rotating when at least one predetermined angular stroke limit position is reached.
  • the stroke limit stop element 15 is configured to stop the tilt pulley 11 from rotating when at least two predetermined angular stroke limit positions are reached: a first angular stroke limit position, corresponding to the configuration of maximum tilt of the slats 2 and a second angular stroke limit position, corresponding to the configuration of minimum tilt of the slats 2.
  • a rotation of the lifting shaft 6 in a first direction causes the stroke limit stop element 15, integral with the tilt pulley 11, to move to an angular stroke limit position where further rotation of the tilt pulley 11 in the first direction is prevented.
  • the clutch 14 When rotation of the tilt pulley 11 is prevented, the clutch 14 generates slipping which allows the lift pulley 8 to continue rotating without driving the tilt pulley 11, thus preventing excessive strain from being applied to the tooth 15 which has reached an angular stroke limit position.
  • a movement of the slats 2 between the gathered configuration and the extended configuration corresponds to a first angle of rotation of the lifting shaft 6.
  • a change in the tilt of the slats 2 between the maximum and the minimum tilt configuration of the slats 2 corresponds to a second angle of rotation of the lifting shaft 6.
  • the second angle of rotation is smaller than the first angle of rotation by at least one order of magnitude.
  • the slats 2 are retracted and arranged in the maximum tilt configuration.
  • the slats 2 adopt the open configuration.
  • the tooth 15 is at a first angular stroke limit position.
  • a rotation of the lifting shaft 6 in the extending rotation direction causes rotation of the tilt pulley 11 and of the tooth 15 connected thereto.
  • a rotation of the tilt pulley 11 through an angle less than or equal to a full angle causes the tooth to move from the first to the second predetermined angular stroke limit position, corresponding to the closed configuration of the slats 2.
  • a rotation of the tilt pulley 11 through an angle less than or equal to a flat angle causes the tooth to move from the first to the second predetermined angular stroke limit position, corresponding to the closed configuration of the slats 2. Thanks to the clutch 14, a further rotation of the lifting shaft 6 in the extending rotation direction causes only the slats 2, which are in the closed configuration, to move away from the lifting shaft 6 in the direction of movement.
  • the tooth 15 is at the second stroke limit position.
  • a rotation of the lifting shaft 6 and of the first lift pulley 8 in the gathering rotation direction causes the tilt pulley 11 to rotate and hence the tilt of the slats 2 changes from the closed configuration to the open configuration.
  • a rotation of the lifting shaft 6 through an angle equal to a flat angle corresponds to the passage of the slats 2 from the closed configuration to the open configuration (and vice versa), causing a limited, almost imperceptible, movement of the slats 2 along the direction defined by the lateral guides.
  • This allows, both in the extended configuration and in any configuration intermediate between the extended configuration and the gathered configuration, changing the tilt of the slats 2 with only an imperceptible movement of the slats 2 in the direction of movement.
  • the tooth 15 is at the first angular stroke limit position and, thanks to the clutch 14, a further rotation of the lifting shaft 6 and of the lift pulley 8 in the gathering rotation direction causes only the slats 2, which are in the open configuration, to move towards the lifting shaft 6 along the direction of movement.
  • the lifting shaft 6 is coupled to the motor 13 to rotate at a first speed, in a condition of driving the lifting shaft 6 on the tilt pulley 11, and at a second speed greater than the first, in a condition of slipping of the tilt pulley 11 relative to the lifting shaft 6.
  • the sunshade apparatus 1 comprises a connecting structure for connecting the lifting element 9 to the last slat 2a.
  • the connecting structure defines a clearance, along the direction of movement, between the lifting element 9 and the last slat 2a, so that the last slat 2a is movable between a first and a second end position along the direction of movement, relative to a stretch of the lifting element 9 to which it is connected.
  • the connecting structure comprises a lifting carriage 10, fixed to the last slat 2a and movably connected to the lifting element 9 to define the aforementioned clearance.
  • the lifting carriage 10 is fixed to the lifting element 9 and movably connected to the last slat 2a to define the aforementioned clearance.
  • the lifting carriage 10 supports the weight of the slats 2, and its coupling with the lifting element 9 produces a force which places under tension a first stretch of the lifting element 9 included, in the extending direction, between the first lift pulley 8 and the point of connection between the lifting carriage 10 and the lifting element 9.
  • the coupling between the lifting carriage 10 and the lifting element 9 places under tension (by effect of the motor 13) a second stretch of the lifting element 9, complementary to the first stretch and included, in the gathering direction, between the first lift pulley 8 and the point of connection between the lifting carriage 10 and the lifting element 9.
  • the lifting carriage 10 comprises an activating element configured to inhibit motor operation.
  • the activation element is movable between a deactivated configuration and an active configuration in response to a relative movement of the last slat 2a relative to the lifting element 10 in the gathering direction.
  • the sunshade apparatus 1 comprises an optical stop device.
  • the optical stop device comprises an emitter 17 and a receiver 18, defining an optical path 19.
  • the activation element in changing from the deactivated configuration to the active configuration, interrupts the optical path 19 to inhibit operation of the motor 13.
  • the receiver 18 is connected to an electronic card 24 configured to inhibit the operation of the motor 13.
  • the emitter 17 and the receiver 18 are aligned along the direction of movement at fixed positions relative to a frame 3 of the sunshade apparatus 1.
  • the emitter 17 and the receiver 18 are spaced, in the direction of movement, by a distance which is greater than or equal to the distance between the first stroke limit position of the last slat 2a and the second stroke limit position of the last slat 2a.
  • the lifting element 9 comprises a pin 16 inserted in an oval hole 10a made on the carriage 10.
  • a relative movement of the carriage 10 relative to the lifting element 9 in the gathering direction causes the pin 16, which is connected to the lifting element 9, to move from the run position to the stop position which are defined by the oval hole 10a.
  • the oval hole 10a is elongate in a direction parallel to the direction of movement.
  • the sunshade apparatus 1 preferably also comprises a return spring (not illustrated), operatively interposed between the connecting structure and the last slat, for pushing the connecting structure (that is, the carriage) towards the lifting shaft.
  • a return spring (not illustrated), operatively interposed between the connecting structure and the last slat, for pushing the connecting structure (that is, the carriage) towards the lifting shaft.
  • the emitter 17 is a source of electromagnetic radiation (for example, laser or infrared), connected to the frame 3 in proximity to the second stroke limit position of the last slat 2a.
  • the pin 16, which connects the lifting element 9 to the lifting carriage 10, is connected to a stop lever 20.
  • the stop lever 20, which is pivoted to the lifting carriage 10, is configured to pass by rotation from the deactivated configuration to the active configuration, corresponding respectively to the run position and the stop position occupied by the pin 16 in the oval hole 10a.
  • the stop lever 20 adopts the deactivated configuration.
  • the pin 16 occupies the run position and supports the weight of the slats 2, keeping the first stretch of the lifting element 9 under tension.
  • the movement of the pin 16 to the stop position urges the stop lever 20 into the active position, where it interrupts the optical path 19 defined between the emitting device 17 and the receiving device 18. Interrupting the optical path 19 causes the motor 13 coupled to the lifting shaft 6 to stop.
  • the sunshade apparatus 1 comprises a proximity sensor 21 configured to detect the distance of the last slat 2a from the second stroke limit position where the sunshade apparatus 1 adopts the extended configuration.
  • the proximity sensor 21 is configured to detect when the last slat 2a reaches the second stroke limit position and to invert the logic of the optical stop device. In other words, when the extended configuration is reached, interruption of the optical path 19 does not inhibit operation of the motor 13. The motor 13, remaining engaged, keeps the second stretch of the lifting element 9, between the first lift pulley 8 and the pin 16 in the gathering direction under tension, thereby opposing manual movement of the sunshade apparatus 1.
  • the proximity sensor 21 is fixed relative to the frame 3 in proximity to the second stroke limit position of the last slat 2a.
  • the sunshade apparatus 1 comprises an alarm device connected to the proximity sensor 21.
  • the alarm device is activated when the proximity sensor 21 detects an attempt to move the sunshade apparatus 1 manually.
  • the sunshade apparatus 1 comprises a first and a second optical stop device associated with the first and the second part of the sunshade apparatus 1, respectively.
  • a method of using a sunshade apparatus 1 is also defined wherein a rotation of the lifting shaft 6 in the extending rotation direction causes movement of the slats 2 towards the extended configuration and tilting of the slats 2 towards the minimum or, vice versa, maximum tilt configuration, and a rotation of the lifting shaft 6 in a gathering rotation direction causes movement of the slats 2 towards the gathered configuration and tilting of the slats towards the maximum or, vice versa, minimum tilt configuration.
  • the method comprises the following steps:
  • the method of using the sunshade apparatus 1 comprises a step of inhibiting the operation of the motor 13, in response to a relative movement of the last slat 2a relative to the lifting element 9 along the direction of movement, in the gathering direction.
  • the step of moving the slats 2 between the gathered configuration and the extended configuration corresponds to a first angle of rotation of the lifting shaft 6 and the step of tilting the slats 2 between the minimum and maximum tilt configurations corresponds to a second angle of rotation of the lifting shaft 6.
  • the second angle of rotation is smaller than the first angle of rotation by at least one order of magnitude.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Blinds (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Building Awnings And Sunshades (AREA)
  • Transmission Devices (AREA)
EP19167805.1A 2014-12-23 2015-12-14 Sunshade apparatus and method for its use Active EP3536890B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PL19167805T PL3536890T3 (pl) 2014-12-23 2015-12-14 Urządznie do żaluzji przeciwsłonecznych i sposób jego użycia
SI201531412T SI3536890T1 (sl) 2014-12-23 2015-12-14 Naprava za senčenje in postopek za njeno uporabo
HRP20201851TT HRP20201851T1 (hr) 2014-12-23 2020-11-20 Uređaj za zaštitu od sunca i postupak za njegovu primjenu

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ITBO20140725 2014-12-23
ITBO20140724 2014-12-23
PCT/IB2015/059574 WO2016103102A2 (en) 2014-12-23 2015-12-14 Sunshade apparatus and method for its use
EP15820279.6A EP3237716B1 (en) 2014-12-23 2015-12-14 Sunshade apparatus and method for its use

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP15820279.6A Division EP3237716B1 (en) 2014-12-23 2015-12-14 Sunshade apparatus and method for its use

Publications (2)

Publication Number Publication Date
EP3536890A1 EP3536890A1 (en) 2019-09-11
EP3536890B1 true EP3536890B1 (en) 2020-08-26

Family

ID=55066701

Family Applications (3)

Application Number Title Priority Date Filing Date
EP15820279.6A Active EP3237716B1 (en) 2014-12-23 2015-12-14 Sunshade apparatus and method for its use
EP15818057.0A Active EP3237715B1 (en) 2014-12-23 2015-12-14 Sunshade apparatus and method for its use.
EP19167805.1A Active EP3536890B1 (en) 2014-12-23 2015-12-14 Sunshade apparatus and method for its use

Family Applications Before (2)

Application Number Title Priority Date Filing Date
EP15820279.6A Active EP3237716B1 (en) 2014-12-23 2015-12-14 Sunshade apparatus and method for its use
EP15818057.0A Active EP3237715B1 (en) 2014-12-23 2015-12-14 Sunshade apparatus and method for its use.

Country Status (8)

Country Link
EP (3) EP3237716B1 (es)
ES (3) ES2834643T3 (es)
HR (1) HRP20201851T1 (es)
IL (2) IL252313B (es)
PL (1) PL3536890T3 (es)
SG (2) SG11201704266XA (es)
SI (1) SI3536890T1 (es)
WO (2) WO2016103102A2 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK180193B1 (en) * 2018-12-28 2020-08-04 Jørn Krab Holding APS System for closing an opening
IT201900002755A1 (it) * 2019-02-26 2020-08-26 Lupak Metal S R L Apparato frangisole

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH503885A (de) * 1969-08-25 1971-02-28 Griesser Ag Raffstore
CH565935A5 (es) 1973-11-20 1975-08-29 Griesser Ag
CH635164A5 (de) 1979-02-16 1983-03-15 Griesser Ag Raffstore.
DE502006006408D1 (de) 2006-12-23 2010-04-22 Schenker Storen Ag Lamellenstore zur Beschattung von Innenräumen
CN102753780B (zh) * 2010-02-12 2015-04-01 奥依列斯Eco株式会社 窗帘装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3237716B1 (en) 2019-04-17
EP3237715A1 (en) 2017-11-01
WO2016103102A3 (en) 2016-08-18
IL252313A0 (en) 2017-07-31
WO2016103102A2 (en) 2016-06-30
ES2834643T3 (es) 2021-06-18
HRP20201851T1 (hr) 2021-01-08
IL252313B (en) 2021-01-31
IL279802A (en) 2021-01-31
ES2724990T3 (es) 2019-09-18
ES2721013T3 (es) 2019-07-26
IL279802B (en) 2021-12-01
PL3536890T3 (pl) 2021-03-08
WO2016103101A1 (en) 2016-06-30
EP3237715B1 (en) 2019-03-27
SG10202105363YA (en) 2021-07-29
EP3237716A2 (en) 2017-11-01
SI3536890T1 (sl) 2021-03-31
SG11201704266XA (en) 2017-07-28
EP3536890A1 (en) 2019-09-11

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