EP3581753A1 - Schiebeabschirmvorrichtung - Google Patents

Schiebeabschirmvorrichtung Download PDF

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Publication number
EP3581753A1
EP3581753A1 EP19159903.4A EP19159903A EP3581753A1 EP 3581753 A1 EP3581753 A1 EP 3581753A1 EP 19159903 A EP19159903 A EP 19159903A EP 3581753 A1 EP3581753 A1 EP 3581753A1
Authority
EP
European Patent Office
Prior art keywords
upright
movable bar
guide
along
engaged
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
EP19159903.4A
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English (en)
French (fr)
Other versions
EP3581753B1 (de
Inventor
Ciro Annicchiarico
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.)
Primed Srl
Original Assignee
Primed 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
Priority claimed from IT102019000001157A external-priority patent/IT201900001157A1/it
Application filed by Primed Srl filed Critical Primed Srl
Publication of EP3581753A1 publication Critical patent/EP3581753A1/de
Application granted granted Critical
Publication of EP3581753B1 publication Critical patent/EP3581753B1/de
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
    • E06B9/52—Devices affording protection against insects, e.g. fly screens; Mesh windows for other purposes
    • E06B9/54—Roller fly screens
    • 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
    • E06B9/52—Devices affording protection against insects, e.g. fly screens; Mesh windows for other purposes
    • E06B9/54—Roller fly screens
    • E06B2009/543—Horizontally moving screens

Definitions

  • the present invention relates to a screening device, more specifically an improved sliding screening device. More in detail, the invention is particularly referred to mosquito nets, blackout curtains, decorative panels or similar devices to be installed on windows, French windows or other types of window fixtures in premises for residential or commercial use.
  • the screening devices of the type described above essentially comprise a screening sheet engaged between a first and a second section bar along two of its respectively opposite sides.
  • One of the support section bars usually known as fixed upright or “rolling-shutter box”, is suitable to be fixed along one side of the window, French window or other opening on which the device must be installed.
  • the other support section bar usually called “handle-bar”, is movable away and approaching the fixed upright, to bring the screening sheet selectively between an operating condition, in which it is stretched in the opening area, and a resting condition, in which it is wound or compacted near the fixed upright to free the passage through the opening on which the screening device is installed.
  • the opposite ends of the handle-bar are normally guided along two guide bars, respectively upper and lower, extending in the direction of movement.
  • An auxiliary upright fixed along the side of the window opposite to the fixed upright, carries magnetic or mechanical elements operably engageable with the handle-bar, to hold it in the condition of use.
  • stabilizing devices are also required which, for example by means of one or more cords or cables suitably guided on respective returns, constrain the opposite ends of the handle-bar so that the latter maintains a vertical orientation, without tilting in an uncontrolled manner, also during the stretch and return operations of the sheet.
  • the use of stabilizing devices entails a significant structural complication of the mosquito net, with consequent increases in production and installation costs.
  • the constructive conception of the stabilizing devices proves to be such as to require a wise and accurate adjustment of the cables and/or of the respective transmissions during installation.
  • mosquito net remains permanently exposed to the elements even for long periods in which its presence is not necessarily required, such as during the winter seasons.
  • the object of the present invention is to improve the state of the art by proposing a mosquito net which has effective stabilizing devices, the presence of which does not penalize the ease of installation and use of the mosquito net itself.
  • a further object of the invention is to propose a structurally simplified one, which lends itself to be installed with greater simplicity.
  • a further purpose of the invention is that of realizing a mosquito net which is suitable to be easily disassembled and reassembled also by the final user, without the intervention of qualified operators.
  • a further purpose of the invention is to propose a mosquito net which is suitable to be mounted indifferently in one or the other direction so as to allow it to be opened from the right or from the left, depending on the requirements. Also proposed is a mosquito net which, whenever required, lends itself to be easily disassembled and reassembled by the user in the event that changing the opening direction is desired.
  • the object of the present invention is a shielding device, comprising: an upper guide engageable along an upper side of an opening or window arranged in a building; a lower guide engageable along a lower side of the window; a screening assembly comprising an upright, a movable bar parallel to the upright and a screening sheet having mutually opposite end edges, respectively engaged with the movable bar and with the upright; at least one first and one second slider each carried by one of the opposite ends of the movable bar and slidingly engageable respectively along the upper guide and the lower guide, to guide the movement of the movable bar moving away and approaching the upright; stabilizing devices for maintaining the movable bar in an orientation parallel to the upright.
  • the stabilizing devices comprise: at least one toothed pinion rotatably engaged to the first slider according to a rotation axis parallel to the longitudinal extension of the movable bar; and a rack toothing operably engageable with the teeth of the toothed pinion and extending along a side wall, preferably inner, of the upper guide parallel to the direction of movement of the movable bar.
  • the invention may further comprise at least one of the following preferred features.
  • At least one auxiliary toothed pinion engaged to the second slider rotatably according to a respective rotation axis perpendicular to the longitudinal extension of the movable bar, and an auxiliary rack toothing operably engageable with the teeth of the auxiliary toothed pinion and extending along the lower guide parallel to the direction of movement of the movable bar.
  • the stabilizing devices further comprise mechanical transmission members operating between the toothed pinion and the auxiliary toothed pinion to synchronize the displacements of the first and second slider respectively along the upper and lower guide.
  • said mechanical transmission members comprise a kinematic chain configured to transmit a rotary motion from the toothed pinion to the auxiliary toothed pinion, and vice versa.
  • said mechanical transmission members comprise a kinematic chain configured to operate the auxiliary toothed pinion according to a peripheral speed equal to the peripheral speed of the toothed pinion, and vice versa.
  • the kinematic chain comprises a transmission shaft extending along the movable bar and operatively connected with the pinion and the auxiliary toothed pinion.
  • the transmission shaft and the pinion are connected to each other by means of a pair of upper toothed wheels, respectively carried by the pinion itself and by an upper end of the transmission shaft.
  • the transmission shaft and the auxiliary pinion are mutually connected by a first pair of toothed wheels respectively carried by the transmission shaft and by a return hub rotatably engaged in the movable bar, and a second pair of toothed wheels respectively carried by the return hub and the auxiliary toothed pinion.
  • the transmission hub is rotatably supported according to a rotation axis parallel to a rotation axis of the transmission shaft.
  • At least one of said first and second toothed wheels is a conical pair.
  • the rack toothing, and/or the auxiliary rack toothing is defined by at least one toothed belt.
  • the toothed belt is fixed along an inner side wall of the upper guide.
  • At least one tooth of the toothed pinion is interposed in contact relationship between two consecutive teeth of the rack toothing.
  • the teeth of the rack toothing and of the toothed pinion each have a longitudinal extension parallel to the rotation axis of the toothed pinion.
  • each tooth of the rack toothing and of the toothed pinion have a longitudinal extension of at least 5 mm.
  • the rotation axis of the toothed pinion lies in a longitudinal centerplane of the upper guide.
  • the first slider carries at least two toothed pinions equidistant from a longitudinal centerplane of the upper guide.
  • each of said pinions is operably engaged with a respective rack toothing.
  • the first slider carries at least two pairs of toothed pinions, said pairs being equidistant from a longitudinal centerplane of the upper guide.
  • retention devices are also provided to counteract the sliding of the movable bar relative to the guides themselves.
  • said retention devices are configured to hold the movable bar in any fixed position along the upper and lower guides.
  • the retention devices comprise a coupling joint comprising a rotating collar rigidly engaged along the transmission shaft, and a locking collar rotatably crossed by the transmission shaft.
  • the locking collar is slidably engaged along the transmission shaft and movable between a disengaging position in which it is moved away from the rotating collar, and an engagement position in which axial projections and clutch seats respectively carried by the rotating collar and by the locking collar are mutually engaged to block the rotation of the transmission shaft.
  • the locking collar is movable along the transmission shaft upon command of at least one knob projecting externally from the movable bar.
  • the locking collar is rotationally fixed with respect to the handle-bar.
  • said retention devices operate between at least one of the sliders and the respective upper and/or lower guide.
  • the retention devices comprise at least one skid carried by the movable bar and operating in an elastic thrust relationship along a lower edge of the upper guide.
  • the skid is elastically pushed by a spring housed in a casing integral with the movable bar and housing the skid itself slidably towards the upper guide.
  • the skid is configured to be removably inserted in at least one recess formed along the lower edge of the upper guide and/or in at least one of the coupling terminals.
  • said retention devices comprise at least one friction surface arranged on the slider and at least one clamping member operating between the toothed pinion and the slider itself, to push the toothed pinion and the friction surface axially against each other.
  • said clamping member comprises a threaded pin pivotally passing through the toothed pinion.
  • At least one elastic insert is operatively interposed between the slider and the toothed pinion to elastically push the friction surface against the toothed pinion itself.
  • the elastic insert comprises at least one spring washer or a Belleville washer coaxial to the toothed pinion.
  • anchoring members are also provided for fixing the upright with respect to a vertical side of the window.
  • the anchoring members comprise an upper anchor operating on one end of the upper guide and on an upper end of the upright, and a lower anchor operating on one end of the lower guide and on a lower end of the upright.
  • said anchoring members comprise inserts arranged near the opposite ends of at least one of said upper guide and lower guide.
  • each of said inserts has an engagement portion carrying a sealing seat, and a ramp portion having a decreasing thickness away from the sealing seat.
  • At least first inserts can be slidably positioned and removably fixed along a longitudinal groove provided in the lower guide.
  • removable engagement devices operate between at least one of the sliders and a respective end of at least one of said upper guide and lower guide.
  • removable engagement devices comprise at least one engagement member carried by the first and/or second slider and operably engageable with a respective gripping seat.
  • the gripping seat is carried by an insert removably fixed with respect to the respective lower and/or upper guide.
  • said engagement member comprises a magnet and the sealing seat comprises a tab protruding from one end of the insert.
  • the upright in a section of its extension extending from the upper anchor to the lower anchor, is approached along the respective vertical side of the window in the absence of additional fixing elements.
  • At least one of said upper guide and lower guide comprises a section bar having at least one end engaged with respect to a coupling terminal.
  • the end of the section bar and the coupling terminal are mutually connected in a sliding engagement relationship.
  • the opposite ends of the section bar are engaged in respective coupling terminals.
  • each coupling terminal is configured to be fixed to the window.
  • each coupling terminal can be fixed to the window, at an angle formed by the upper or lower side, with one of the vertical sides.
  • each coupling terminal has a shell engaging the end of the upper guide and a closing end wall which can be rigidly engaged at the corner of the window.
  • the shell has at least one open side extending between two perimeter edges projecting towards each other, so as to each form an undercut.
  • the end of the upper guide can be engaged by forced insertion through the open side, possibly imposing an elastic split to the shell at the projecting perimeter edges, to engage in the respective undercuts the terminal edges of the opposite wings of the upper guide, so that this remains held in the shell.
  • thrust devices configured to push mutually away opposite ends of the upper guide are also provided.
  • said thrust devices operate between the section bar and the coupling terminal at at least one of the opposite ends of the upper and/or lower guide, to push said section bar and coupling terminal in respectively opposite directions.
  • the thrust devices comprise a base body carried by one of the ends of the section bar, and a thrust insert slidably engaged to the base body and movable along a longitudinal extension direction of the section bar, upon action of a rotationally actuatable control screw.
  • control screw extends parallel to the longitudinal extension of the section bar and rigidly carries a conical driven wheel operatively engaged with a conical control wheel, said conical driven wheel being rotationally actuatable about an axis perpendicular to the longitudinal extension of the section bar.
  • said upper anchor operates between the upper end of the upright and one of said coupling terminals.
  • the upper anchorage comprises at least one clutch seat defined against the closing wall of each coupling terminal, to accommodate a grip portion defined at the upper end of the upright, preferably by insertion along a direction parallel to the longitudinal extension of the upright itself.
  • the lower anchor comprises at least one engagement pin protruding inferiorly from a terminal insert below carried by the upright and engageable in the sealing seat of the respective insert, so as to firmly constrain the lower end of the same upright.
  • the lower anchorage comprises a toothed insert carried by the lower end of the upright and operatively engaged with the auxiliary rack toothing.
  • the upper guide, the lower guide and possibly also the anchoring members are specularly symmetrical with respect to a median vertical plane transverse to the longitudinal extension of the upper and lower guides.
  • the movable bar is slidably engaged between the upper guide and the lower guide in conjunction with the fixing of the upright.
  • 1 globally indicates a screening device according to the present invention.
  • the screening device 1 lends itself to be installed in the opening defining a window or French window (not shown in the drawings) to perform mosquito-net functions, that is to say to prevent the passage of flies, mosquitoes and other insects or small animals through the opening itself.
  • the screening device 1 essentially comprises an upper guide 2 engageable along an upper side of the window, a lower guide 3 engageable along a lower side of the window, and a screening assembly 4, preferably pre-assembled, operably engageable between the upper guide 2 and the lower guide 3.
  • the screening assembly 4 comprises an upright 5, constituted for example by at least one tubular section bar which can be fixed along a vertical side of the window on which the screening device 1 is to be installed.
  • the upright 5 is arranged parallel with respect to a movable bar 6, which can also be made in the form of a tubular metal section bar.
  • a screening sheet 7 has two opposite end edges respectively engaged with the upright 5 and the movable bar 6.
  • the screening sheet 7 can be made, for example, in the form of a network of synthetic material having meshes of dimensions indicatively comprised between 0,3 mm and 2 mm, or in any case such as to provide an effective barrier to the passage of small insects such as ants and mosquitoes, while favouring an adequate air permeability.
  • a first end edge of the screening sheet 7 is rigidly fixed to an anchoring element (not shown) carried by the movable bar 6.
  • a second terminal edge is in turn engaged to a winding roller (not shown) operatively arranged inside the upright 5 and subjected to the action of elastic means which tend to rewind the screening sheet 7 onto the winding roller itself.
  • the pre-assembly of the screening sheet 7 with the upright 5 and the movable bar 6 for the purpose of obtaining the screening assembly 4 can be performed, for example, at the production site or at an authorized dealer.
  • the movable bar 6 lends itself to being manually shifted moving away and approaching the upright 5.
  • the removal of the movable bar 6 from the upright 5 determines the unwinding of the screening sheet 7 and its extension in the lying plane of the window on which the screening device 1 is installed, in contrast with the action of the elastic recall means associated with the winding roller.
  • the screening sheet 7 is rewound within the upright 5 itself, on the action of the aforementioned elastic recall means.
  • the movable bar 6 is guided along the upper and lower guides 2, 3, by means of a first slider 8 and a second slider 9 each carried by one of the opposite ends, respectively upper and lower, of the movable bar 6 itself.
  • the upper guide 2 comprises a section bar 2a preferably having a substantially "inverted" U-shaped cross-section, having a base portion 10 from whose side edges two opposite wings 11 extend between which the first slider 8 is housed, so as to be hidden at the sight of the observer.
  • the upper guide 2 further comprises a pair of coupling terminals 12, preferably connected in sliding engagement relationship with the opposite ends of the section bar 2a and fixable to the window, each at one of the corners formed by the upper side with each of the vertical sides.
  • Each coupling terminal 12 preferably has a closing end wall 13, from which a shell 14 extends perpendicularly and partially circumscribes the end of the section bar 2a belonging to the upper guide 2.
  • the shell 14 has at least one open side 14a extending between two mutually projecting perimeter edges 15, so as to each form an undercut 15a.
  • the open side 14a allows the forced insertion of the end of the upper guide 2 towards the inside of the shell 14, in a direction transverse to the longitudinal extension of the upper guide itself, imposing an elastic split to the shell 14 at the projecting perimeter edges 15.
  • the projecting perimeter edges 15 spring elastically engaging in the respective undercuts 15a the end edges of the opposite wings 11 of the upper guide 2, so that it remains retained in the shell 14.
  • Each coupling terminal 12 can be rigidly engaged at a respective corner of the window, for example by means of a screw operating through a hole 13a formed in the closing end wall 13, and possibly combined with an expansion fixing dowel.
  • the coupling terminal 12 can be fixed by gluing or interposing a double-sided adhesive tape.
  • thrust devices 16 can be provided configured to push the opposite ends of the upper guide 2, with the possible coupling terminals 12, mutually away.
  • the thrust devices 16 preferably operate between the section bar 2a and the coupling terminal 12 at at least one of the opposite ends of the upper guide 2, so that the same section bar and coupling terminal are pushed in respectively opposite directions.
  • the thrust devices 16 preferably comprise a base body 17 carried by one of the ends of the section bar 2a.
  • the base body 17 can be fixed to the section bar 2a by means of threaded members or by interlocking.
  • the base body 17 has a guide seat 17a at which a thrust insert 18 is slidably engaged.
  • the thrust insert 18 is movable in the guide seat 17a along a longitudinal extension direction of the section bar 2a, on the action of a control screw 18a rotatable through the base body itself and operatively engaged in a threaded hole arranged in the same thrust insert 18.
  • the control screw 18a extends parallel to the longitudinal extension of the section bar 2a and rigidly carries a conical driven wheel 19 operatively engaged with a conical control wheel 20.
  • the conical control wheel 20 is rotatably engaged in a housing 17b provided in the base body 17 and has, on its own side facing away from the base wall 10, an axial coupling seat 20a accessible from an opening defined between the wings 11 of the section bar 2a.
  • the conical driven wheel 19 lends itself to being rotationally actuatable about its own axis perpendicular to the longitudinal extension of the section bar 2b.
  • the rotational actuation of the conical driven wheel 19 causes the rotational actuation of the control screw 18a and the consequent displacement of the thrust insert 18 along the guide seat 17a provided in the base body 17.
  • the thrust insert 18 therefore lends itself to being pushed against the respective coupling terminal 12 at the closing end wall 13, pushing the coupling terminal itself against the corresponding side of the window.
  • the base body 17, together with the section bar 2a is pushed towards the coupling terminal 12 mounted on the end opposite to the one carrying the thrust devices 16, pushing the coupling terminal itself against the corresponding side of the window.
  • the opposed thrusts exerted through the coupling terminals consequently cause the locking of the upper guide 2 by friction against the corresponding sides of the window.
  • the thrust devices 16 may optionally equip the lower guide 3, in addition to or as an alternative to the upper guide 2.
  • the lower guide 3, positioned along the lower horizontal side of the opening, has a substantially flattened cross-section profile, with the longer side substantially perpendicular to the plane in which the screening sheet 7 lies in extended condition. More specifically, it is envisaged that the lower guide 3 has a base portion 21 lying against the corresponding lower side of the window. From the base portion 21 protrudes above, preferably in a centred position, at least one longitudinal relief 22 which slidably engages a lateral containment groove 23 arranged in a lower surface of the second slider 9. Lateral laterally opposite sides of the longitudinal relief 22 lend themselves to act against respective side surfaces of the containment groove 23, so as to guide the second slider 9 along a rectilinear trajectory along the longitudinal extension of the lower guide 3.
  • one or more pairs of sliding rollers 24 rotatably carried by the second slider 9 can be provided.
  • the sliding rollers 24 act along opposite longitudinal bands of the base portion 10, to facilitate the translation of the slider itself along the lower guide 3.
  • the opposed longitudinal bands of the base portion 10 are each interposed between the second slider 9 and the lower side of the window, so as to protect the lower side of the window from sliding contacts with the second slider 9.
  • the lower guide 3 also lends itself to engaging a movable containment member 25, designed to protect the corresponding side edge of the screening sheet 7.
  • the movable containment member 25 has a first portion fixed to one of said movable bar 6 and upright 5, and a second portion slidably guided along the other of said movable bar 6 and upright 5. More particularly, in the embodiment illustrated the first portion of the movable containment member 25 is terminally constrained to a terminal insert 26 fixed to the lower end of the upright 5, while the second portion is slidably housed inside the movable bar 6.
  • the movable containment member 25 is dragged longitudinally with the movement of the movable bar 6, so as to extend its first portion along the corresponding side edge of the screening sheet 7, which thus remains slidingly engaged in a longitudinal housing defined in the movable containment member 25 itself, and adequately retained in relation to lateral and/or vertical displacements.
  • the movable containment member 25 can for example be made in the form of a flexible band in plastic material, or by a plurality of mesh elements 27 consecutively hinged in a chain fashion, so as to lend itself to being easily bent to deflect its movement path entering and exiting the movable bar 6, in the transition zone between the first section and the second section.
  • the screening device 1 also comprises anchoring members 28, 29, for fixing the upright 5 with respect to one of the vertical sides of the window.
  • an upper anchor 28 and a lower anchor 29 are preferably provided for the upright 5.
  • the upper anchor 28 operates between an upper end of the upright 5 and one end of the upper guide 2, preferably on the respective coupling terminal 12.
  • the lower anchor 29 operates preferably between one end of the lower guide 3 and a lower end of the upright 5.
  • the upright 5 is preferably approached along the respective vertical side of the window in the absence of additional fixing elements.
  • the upper anchor 28 provides for the presence of at least one clutch seat 30 defined close to the closing end wall 13 of each coupling terminal 12, for example by means of one or more ribs 31 projecting internally from the shell 14 parallel to the terminal wall itself.
  • the clutch seat 30 lends itself to receiving a grip portion 32 defined at the upper end of the upright 5, preferably by insertion along a direction parallel to the longitudinal extension of the upright itself.
  • the grip portion 32 can be made directly on the tubular section bar constituting the upright 5 as exemplified in figure 2 , or in a terminal insert 5a fixed to the end of the same upright, as exemplified in figure 14 .
  • the lower anchor 29 can in turn provide for the use of at least one, preferably two inserts 33 removably fixed to the lower guide 3, each against one of the ends of the latter.
  • Each insert 33 is slidably engaged along a longitudinal groove 34 formed in the longitudinal relief 22 of the lower guide 3 and locked for example by a threaded pin 35 at the corresponding end of the lower guide 3 itself.
  • Each insert 33 has an engagement portion 33a carrying a sealing seat 36, for example made in the form of a through hole, and a ramp portion 33b having a thickness decreasing away from the sealing seat 36.
  • an engagement pin 37 protruding inferiorly from the terminal insert 26 inferiorly carried by the upright 5 lends itself to engage in the sealing seat 36 of the respective insert 33, so as to firmly constrain the lower end of the upright 5.
  • the lower anchor 29 uses the presence of an auxiliary rack toothing 46 arranged along the lower guide 3. More particularly, the lower anchor 29 can comprise a toothed insert 29a carried by the lower end of the upright 5 and operably engaged with the auxiliary rack toothing 46.
  • the toothed insert 29a is fixed in a removable way with respect to the upright 5, for example at the terminal insert 26.
  • the toothed insert 29a lends itself to be easily removed or omitted to allow a sliding engagement of the upright 5 with respect to the lower guide 3, for example when the screening device 1 provides for the use of two or more screening assemblies 4 arranged the one after the other along the lower 3 and upper 2 guides.
  • the upright of 5 of a second screening assembly 4 can be fixed to the movable bar 6 of a first screening assembly 4, the latter having its own upright 5 fixed against one of the vertical sides by the opening on which the screening device 1 is mounted.
  • the movable bar 6 can be associated with removable engagement devices 38, 39, preferably operating between at least one of the sliders 8, 9 and a respective end of each of said upper guide 2 and lower guide 3.
  • the removable engagement devices preferably comprise at least one engagement member 38 carried by the second slider 9 and operatively engageable with the insert 33 mounted on the end of the lower guide 3 opposite to the upright 5.
  • the engagement member 38 comprises a magnet
  • the insert 33 has a projecting tab from its own end to define a gripping seat 39.
  • the function of the gripping seat 39 can be carried out by the aforesaid sealing seat 36, arranged to receive a small sphere constituting the engagement member 38, elastically pushed towards the lower guide 33.
  • the engagement member 38 carried by the second slider 9 interacts with the grip seat 39, made of metallic material. so as to hold the movable bar 6 magnetically in the condition of approaching the respective vertical side of the window, on the opposite side to the upright 5, with the screening sheet 7 in extended condition.
  • the engagement devices 38, 39 can provide a similar magnetic or mechanical restraint system, operating between the upper end of the movable bar itself and the coupling terminal 12.
  • the upper guide 2, the lower guide 3 and preferably also the anchoring members 28, 29, 33 are specularly symmetrical with respect to a median vertical plane of the screening device 1. This centreline axis is transverse to the longitudinal extension of the upper 2 and lower 3 guides.
  • stabilizing devices 40 configured for maintaining the movable bar 6 according to an orientation parallel to the upright 5.
  • the stabilizing devices 40 lend themselves to counteract any anomalous stresses imposed on the movable bar 6 during its movement approaching and away from the fixed upright 5, to prevent the movable bar itself from undesirably tilting and/or oscillating in the lying plane of the screening sheet 7, assuming an inclined orientation with respect to a vertical direction.
  • the stabilizing devices 40 operate at least between the upper guide 2 and the upper end of the movable bar 6.
  • the stabilizing devices 40 comprise at least one toothed pinion 41 engaged to one of the sliders 9, in the example described to the first slider 8, rotatably along a rotation axis parallel to the longitudinal extension of the movable bar 6.
  • the toothed pinion 41 is operably engageable with a rack toothing 42, extending along the upper guide 2 parallel to the direction of movement of the movable bar 6.
  • the rack toothing 42 can be advantageously defined by a toothed belt 43, more specifically a piece of it is preferably fixed along an inner wall of the upper guide 2, for example at one of its wings 11.
  • the fixing of the toothed belt 43 can be made for example by gluing.
  • the toothed pinion 41 can be arranged with its own rotation axis coplanar with a longitudinal centerplane M of the movable bar 6 and/or of the upper guide 2, and/or equidistant from the inner walls of the wings 11 of the upper guide 2.
  • two or more toothed pinions 41 can be provided, preferably equidistant from the longitudinal centerplane M of the upper guide 2.
  • two toothed pinions 41 are provided
  • figure 11 shows a possible alternative embodiment which provides for the use of two pairs of toothed pinions 41, arranged equidistant from the longitudinal centreline M of the upper guide 2.
  • the use of a single rack toothing 42 can be provided, operating in engagement with only one of the two toothed pinions 41 as shown in figure 10 .
  • a single rack toothing 42 can operate in engagement with only one of the pairs of pinions 41, arranged on the same side with respect to the longitudinal centreline M of the upper guide 2.
  • the presence of two rack toothings 42 can be provided, each anchored to one of the wings 11 of the upper guide 2. In the latter case all the toothed pinions 41 operate in engagement relationship each with one of the rack toothings 42, so as to favour the dynamic balancing of the system.
  • At least one tooth of the toothed pinion 41 is interposed in contact relationship between two consecutive teeth of the rack toothing 42.
  • the rack toothing 42 holds the toothed pinion favouring the maintenance of the movable bar 6 in a vertical orientation, even in the presence of stresses transmitted manually by the user during the stretching and retracting operations the screening sheet 7.
  • each tooth of the rack toothing 42 and of the toothed pinion 41 has a longitudinal extension parallel to the rotation axis of the same toothed pinion.
  • the stabilization of the movable bar 6 is also tendentially favoured with the increase in the length of the teeth of the pinion and of the rack toothing 42.
  • the teeth of the rack toothing and of the toothed pinion prefferably have a longitudinal extension equal to or greater than 5 mm.
  • the stabilizing devices 40 can further comprise at least one auxiliary toothed pinion 45 engaged on the second slider 9 rotatably according to a respective rotation axis, preferably perpendicular to the longitudinal extension of the movable bar 6, and an auxiliary rack toothing 46 operably engageable with the teeth of the auxiliary toothed pinion 45.
  • the auxiliary rack toothing 46 which can also be made by a length of toothed belt, extends along the lower guide 3 parallel to the direction of movement of the movable bar 6.
  • the stabilizing devices 40 further comprise mechanical transmission members 60 operating between the toothed pinion 41 and the auxiliary toothed pinion 45 to synchronize the displacements of the first and second slider 8, 9 respectively along the upper and lower guide 2, 3.
  • the mechanical transmission members 60 preferably comprise a kinematic chain 61 configured to transmit a rotary motion from the toothed pinion 41 to the auxiliary toothed pinion 45, and vice versa.
  • the kinematic chain 61 can be configured to operate the auxiliary toothed pinion 45 according to a peripheral speed equal to the peripheral speed of the toothed pinion 41, and vice versa.
  • the kinematic chain 61 may comprise a transmission shaft 62 rotatably supported within the movable bar 6, extending along the latter, and operatively connected with the pinion 41 and the auxiliary toothed pinion 45.
  • the transmission shaft 62 and the auxiliary pinion 45 are mutually connected by a first pair of toothed wheels 63 and a second pair of toothed wheels 64.
  • the toothed wheels belonging to the first pair 63 preferably cylindrical, are respectively carried by the transmission shaft 62 and by a transmission hub 65 rotatably engaged in the movable bar 6, preferably along an axis of rotation parallel to a rotation axis of the transmission shaft 62.
  • the toothed wheels belonging to the second pair 64 are respectively carried by the transmission hub 65 and the auxiliary toothed pinion 45.
  • the transmission shaft 62 and the pinion 41 are in turn mutually connected by a pair of upper toothed wheels 66, preferably cylindrical, respectively carried by the pinion itself and by a top end of the transmission shaft 62.
  • the presence of the kinematic chain 61 favours a stable maintenance of the movable bar 6 according to a vertical orientation or in any case parallel to the upright 5, also in the presence of unbalances in the stresses respectively transmitted through the first and second slider 8, 9 during the movement.
  • retention devices 44 can be conveniently provided to adequately counteract the sliding of the movable bar 6 with respect to the upper 2 and/or lower 3 guide.
  • the action of the retention devices 44 can favour the regularity of the sliding of the movable bar 6 during the movement, both in the presence and in the absence of the kinematic chain 61 for transmission, and/or adequately counteract the elastic return action exerted on the screening sheet 7 so that the movable bar itself, in the absence of stress from the user, can be stationed in any position spaced from the fixed upright 5.
  • the retention devices 44 can operate between at least one of the sliders 8, 9 and the respective upper 2 and/or lower 3 guide. More in detail, at least one of the upper 8 and lower 9 sliders have a friction surface 47, 48 and a respective clamping member 49, 50 which operates between the toothed pinion 41, 45 and the slider itself, to push the toothed pinion and the friction surface axially against each other.
  • the clamping member 49, 50 can comprise a threaded pin coaxially and rotatably passing through the respective toothed pinion 41, 45 and engaging by screwing in the first and/or second slider 8, 9.
  • the friction surface can be defined on the opposite sides of an elastic insert, for example a spring washer or a Belleville washer 47, which is elastically compressed between a side wall of the toothed pinion 41 and the respective slider 8, so that the friction surface is pushed against the toothed pinion itself.
  • the friction surface can be defined by opposite walls of a seat 50 arranged in the slider for the lateral containment of the auxiliary toothed pinion 45, which is compressed between said opposed walls, elastically deformable on the action of the clamping member 50.
  • the retention devices 44 can be configured to hold the movable bar 6 in any fixed position along the upper 2 and lower 3 guide.
  • the retention devices 44 may comprise a coupling joint 51 comprising a rotating collar 52 rigidly engaged along the transmission shaft 62, and a locking collar 53 rotatably crossed by the transmission shaft itself.
  • the rotating collar 52 and the locking collar 53 are respectively provided with axial projections 53a and respectively complementary clutch seats 52a, mutually engageable by axial insertion.
  • the locking collar 53 rotationally fixed with respect to the movable bar 6, is slidingly engaged along the transmission shaft 62 and movable between a disengaging position, in which it is moved away from the rotating collar 52, so that the axial projections 53a are disengaged from the clutch seats 52a, and an engagement position in which said axial projections 53a and clutch seats 52a are mutually engaged.
  • the engagement position the rotation of the transmission shaft 62 is blocked and, consequently, the engagement of the toothed pinion 41 and of the auxiliary toothed pinion 45 with the respective racks 42, 46 and through the kinematic chain 51 prevents the sliding of the sliders 8, 9 along the respective upper 2 and lower 3 guides.
  • the locking collar 53 is movable along the transmission shaft 62 on command of at least one knob 54 protruding externally from the movable bar 6.
  • two knobs 54 are provided, projecting respectively from opposite sides.
  • Each knob 54 can also act as a grip element for moving the movable bar 6 and carries at least one attachment pin 55 rigidly connected to the locking collar 53 through a sliding slot 56 formed on the movable bar 6. The mutual engagement between the attachment pin 55 and the sliding slot 56 causes the locking collar to be rotatably fixed with respect to the movable bar 6.
  • the retention devices 44 may comprise at least one skid 57 carried by the movable bar 6 and operating in an elastic thrust relationship along a lower edge 11 a of the upper guide 2.
  • the skid 57 can be elastically pushed by a spring (not shown) housed inside a casing 58 integral with the movable bar 6 and housing the skid itself slidably towards the upper guide 2.
  • the skid 57 can be arranged to be removably inserted in at least one recess of adequate depth (not shown), made for example along the lower edge 11 a of the upper guide 2 and/or in at least one of the coupling terminals, for example in the perimeter edge 15 of the respective shell 14, to hold the movable bar in a position for stretching the sheet or any other predetermined position.
  • the installation of the screening device 1 provides for the upper guide 2 and the lower guide 3 to be fixed respectively along the upper and lower sides of the window, after performing possible cutting operations according to a measurement substantially equal to or slightly less than the development of the sides themselves.
  • the fixing of the lower guide 3 can for example be obtained by gluing, for example with the aid of a double-sided adhesive tape.
  • the fixing of the upper guide 2 is instead preferably carried out by first fixing each of the coupling terminals 12 against a respective corner of the window.
  • the shell 14 of each coupling terminal 12 is carried against the upper side of the window, while the respective closing end wall 13 is fixed against the end of the corresponding vertical side.
  • the upper guide 2 can then be fixed against the upper side by snap-fitting of its opposite ends into the shells 14 of the coupling terminals 12, so as to remain retained by the undercuts 15a defined by the terminal edges 15.
  • the terminals 33 are fixed near the respective opposite ends of the lower guide 3.
  • the pre-assembled screening assembly 4 lends itself to being operatively coupled to the previously installed lower 3 and upper 2 guides.
  • the screening assembly 4 is arranged between the upper 2 and lower 3 guide, according to a substantially coplanar orientation to them and initially inclined in the lying plane of the window, so that the grip portion 32 defined on the upper end of the upright 5 is positioned at the engagement seat 30 arranged in one of the coupling terminals 12.
  • the screening assembly 4 is then oriented parallel to the vertical sides of the window, determining the insertion of the grip portion 32 inside the clutch seat 30.
  • the engagement pin 37 is also inserted in the sealing seat 36 of the respective insert 33 previously fixed to the end of the lower guide 3.
  • the upright 5 is thus firmly fixed with respect to the respective vertical side of the window, by means of the upper anchor 28 and the lower anchor 29 operating at the respective ends of the upper 2 and lower 3 guide.
  • the movable bar 6 is slidably engaged with the upper 2 and lower 3 guide, by means of the first and second slider 8, 9 carried by the opposite ends of the movable bar 6.
  • An elastic deformability of the wings of the upper guide allows the insertion of the slider in the inclined condition between the same wings.
  • the symmetry of the upper guide 2, of the lower guide 3, of the sliders 8, 9 and of the anchoring members 28, 29, 33, with respect to the vertical centreline of the window and of the screening device 1, causes the screening assembly 4 to be indifferently mounted so as to provide the opening of the movable bar 6 in one or the other direction, that is from right to left or vice versa.
  • the screening assembly 4 also lends itself to be easily removed from the upper and lower guides 2, 3, by means of a simple sequence of actions in the reverse order to those performed for assembly purposes. These operations can also be easily performed by the user himself. The user therefore has the possibility of easily removing the screening assembly 4 to perform cleaning, maintenance and/or storage operations. After any removal of the upper guide 2, the disassembly and reassembly of the device 1 can also be carried out with a reverse opening direction with respect to the previous one, without having to resort to skilled operators.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Insects & Arthropods (AREA)
  • Pest Control & Pesticides (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Transmission Devices (AREA)
EP19159903.4A 2018-06-15 2019-02-28 Schiebeabschirmvorrichtung Active EP3581753B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT201800006365 2018-06-15
IT102019000001157A IT201900001157A1 (it) 2019-01-25 2019-01-25 Dispositivo di schematura a scorrimento perfezionato

Publications (2)

Publication Number Publication Date
EP3581753A1 true EP3581753A1 (de) 2019-12-18
EP3581753B1 EP3581753B1 (de) 2021-12-08

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EP19159903.4A Active EP3581753B1 (de) 2018-06-15 2019-02-28 Schiebeabschirmvorrichtung

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EP (1) EP3581753B1 (de)
ES (1) ES2907802T3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202100015233A1 (it) * 2021-06-10 2022-12-10 Nikolas Nikolli Zanzariera, sistema di chiusura comprendente detta zanzariera e metodo di montaggio della zanzariera.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0489450A2 (de) * 1990-11-15 1992-06-10 Hunter Douglas Industries B.V. Tür- oder Fensterverschluss
JP2004204673A (ja) * 2002-12-12 2004-07-22 Aisin Kiko Co Ltd ロール式遮蔽装置及び開口部装置
WO2017169818A1 (ja) * 2016-03-30 2017-10-05 セイキ販売株式会社 ロールスクリーン装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0489450A2 (de) * 1990-11-15 1992-06-10 Hunter Douglas Industries B.V. Tür- oder Fensterverschluss
JP2004204673A (ja) * 2002-12-12 2004-07-22 Aisin Kiko Co Ltd ロール式遮蔽装置及び開口部装置
WO2017169818A1 (ja) * 2016-03-30 2017-10-05 セイキ販売株式会社 ロールスクリーン装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202100015233A1 (it) * 2021-06-10 2022-12-10 Nikolas Nikolli Zanzariera, sistema di chiusura comprendente detta zanzariera e metodo di montaggio della zanzariera.

Also Published As

Publication number Publication date
EP3581753B1 (de) 2021-12-08
ES2907802T3 (es) 2022-04-26

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