EP3754149A1 - A screening apparatus for screening an opening made in a wall - Google Patents

A screening apparatus for screening an opening made in a wall Download PDF

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Publication number
EP3754149A1
EP3754149A1 EP20180433.3A EP20180433A EP3754149A1 EP 3754149 A1 EP3754149 A1 EP 3754149A1 EP 20180433 A EP20180433 A EP 20180433A EP 3754149 A1 EP3754149 A1 EP 3754149A1
Authority
EP
European Patent Office
Prior art keywords
flexible
teeth
opening
movable bar
flexible teeth
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP20180433.3A
Other languages
German (de)
English (en)
French (fr)
Inventor
Giovanni Bruno
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.)
Biessebi Srl
Original Assignee
Biessebi Srl
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Biessebi Srl filed Critical Biessebi Srl
Publication of EP3754149A1 publication Critical patent/EP3754149A1/en
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/52—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
    • E06B9/522—Dimensionally adjustable 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
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/58—Guiding devices
    • 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

  • FIGS 1-4 illustrate a screening apparatus of known type, see also WO 2013/064308 , for screening an opening made in a wall (5), comprising: a frame (17, 18, 31) fixed to an opening (2) made in a wall (5); a sheet (1) for screening the opening (2) made in the wall (5); a movable bar (3) which has a first end (11) and a second end (12) opposite one another, which is tubular and manually activatable, which is fixed to a first lateral edge of the sheet (1) and which is movable from a screening position of the opening (not illustrated), at which the sheet (1) screens the opening (2) when the screening apparatus is in use, and a removed position from the opening (not illustrated); a chain (36) which has a third end (13) and a fourth end (14) opposite one another, which is fixable to the frame (17, 18, 31) by means of the third end (13), and which is insert
  • the screening apparatus is configured in such a way that the flexible belt (6) and the chain (36) tend to maintain the movable bar (3) orientated vertically, both when stationary and when manually activated: if this were not the case, the sheet (1) would be subjected to local stresses, possibly very strong, which might damage it.
  • a force F1 in figure 1
  • figure 1 represents a force F1 applied to the central portion of the movable bar (3) so as to move the movable bar towards the removed position of the opening.
  • a flexible belt can be used that is curved about the longitudinal axis, see figure 2 , i.e. which in transversal section has a concavity facing upwards.
  • the thickness of the flexible belt can be increased, while bearing in mind the fact that the force the user must impress on the movable bar correspondingly increases in order to displace it during normal use of the screening apparatus.
  • the aim of the present invention therefore consists in finding other and more effective solutions to the above drawback.
  • the reciprocal nearness between the guide wall and the first plurality of flexible teeth advantageously tends to prevent the portion of flexible belt from bending beyond a certain limit, i.e. bending up to passing beyond the first plurality of flexible teeth, due to the fact that the guide wall and plurality of cogs function as an abutment for the portion of flexible belt.
  • the flexible teeth have no guide function for the flexible belt, as they are too distanced therefrom.
  • reference numeral (100) denotes a screening apparatus for screening an opening (2) made in a wall (5), object of the present invention, comprising: a frame (17, 18, 31) fixable to an opening (2) made in a wall (5); a sheet (1) for screening the opening (2) made in the wall (5); a movable bar (3) which has a first end (11) and a second end (12) opposite one another, which is tubular, which is manually activatable, which is fixable to a first lateral edge (21) of the sheet (1) and which is movable from a screening position of the opening (PS) ( figure 5A ), at which the sheet (1) screens the opening (2) when the screening apparatus is in use, and a removed position from the opening (PD) ( figure 5B ); a chain (36) which can be arranged at a lower flank (26) of the opening (2) made in the wall (5), which has a third end (13) and a fourth end (14) opposite one another, which is fixable to the frame (17, 18, 31) by
  • the housing (31) can be a profiled member.
  • the screening apparatus (100) is configured in such a way that the flexible belt (6) and the chain (36) tend to maintain the movable bar (3) orientated vertically.
  • the screening apparatus (100) further comprises a first guide (81) for guiding the portion of flexible belt (7) internally of the housing (31), the first guide (81) in turn comprising: one or more guide walls (50) that are a part of the housing (31) and which are arranged to abut a first face (8) of the flexible belt (6); and the first plurality of flexible teeth (45) which are arranged to abut a second face (9), opposite the first face (8), of the flexible belt (6), the one or more guide walls (50) and the first plurality of flexible teeth (45) being near to one another so as to prevent the portion of flexible belt (7) from bending until passing beyond the first plurality of flexible teeth (45), with the consequence of increasing the resistance to axial compression of the portion of flexible belt (7) which is housed in the housing (31).
  • the sheet (1) can be a mosquito screen, a curtain or pleated blind ( figures 17-17D ).
  • the movable bar (3) is also known as a bar handle.
  • the first lateral edge (21) of the sheet (1) can be vertically orientated.
  • the chain (36) can comprise a plurality of chain elements (37) which are hinged to one another.
  • the chain elements (37) of the plurality of chain elements (37) can comprise housings (not visible in the figures) for housing a lower edge (24) of the sheet (1), functioning as a guide.
  • the chain elements (37) of the plurality of chain elements (37) can each be provided with an abutment (not visible in the figures) which limits the rotation of the adjacent chain element (37), so that the chain elements (37) cannot rise (therefore assuming an upwards-facing concavity) at the portion of chain (36) comprised between the third end (13) and the movable bar (3), i.e. the portion of chain (36) which is horizontal, as is visible for example in figures 5A , 5C , 6 .
  • the screening apparatus (100) can comprise a second guide (82) for the chain (36), fixed on the lower flank (26) of the opening (2) made in the wall (5).
  • the flexible belt (6) can be made of a plastic material, for example PVC.
  • the length of the portion of flexible belt (7) and the length of the upper edge portion (23) of the sheet (1) can vary as a function of the position assumed by the movable bar (3).
  • the housing (31) can be designed in such a way that the first through-opening (41) is arranged downwards when the housing (31) is fixed to the upper flank (27) of the opening (2) made in the wall (5).
  • the flexible teeth (45) of the first plurality of flexible teeth (45) are preferably brushes (illustrated in the drawings).
  • the screening apparatus (100) preferably comprises a head (35) ( figures 13A-13D, 18A-18D ) that is borne by the movable bar (3), which is arranged at the second end (12) of the movable bar (3), which engages with the housing (31), and which comprises: a guide through-hole (4) which is crossable by the flexible belt (6) and which opens between the one or more guide walls (50), on one side, and the first plurality of flexible teeth (45), on the other side; one or more switchers (51, 52) which are arranged between the one or more guide walls (50), on one side, and the first plurality of flexible teeth (45), on the other side, and which are conformed in such a way as to distance the flexible teeth (45) of the first plurality of flexible teeth (45) from the one or more guide walls (50) during the displacement of the movable bar (3) in the direction (G1) (see for example figures 6 , 6A , and compare with figure 16 ) which tends to increase the length of the portion of flexible belt
  • the displacement of the movable bar (3) towards the screening position pf the opening (PS) determines the increase in length of the portion of flexible belt (7).
  • the one or more guide walls (50) and the first plurality of flexible teeth (45) are neared to one another, so that the action exerted by the one or more switchers (51, 52) is advantageous as it guarantees the correct repositioning of the flexible teeth (45) of the first plurality of flexible teeth (45) during the movement of the movable bar (3).
  • the head (35) preferably comprises a turret (34) which in turn: bears the one or more switchers (51, 52); comprises a first front wall (32), which engages in the first guide (81) so as to distance the flexible teeth (45) of the first plurality of flexible teeth (45) from the longitudinal axis of the first guide (81) during the displacement of the movable bar (3) in the direction (G1) which tends to increase the length of the portion of flexible belt (7) arranged in the housing (31); comprises a second front wall (33), opposite the first front wall (32), which engages in the first guide (81) so as to distance the flexible teeth (45) of the first plurality of flexible teeth (45) from the longitudinal axis of the first guide (81) during the displacement of the movable bar (3) in the direction (opposite direction (G1), not indicated) which tends to reduce the length of the portion of flexible belt (7) arranged in the housing (31).
  • a turret (34) which in turn: bears the one or more switchers (51, 52);
  • the screening apparatus (100) preferably comprises one or more endrun stops (61, 62) which are arranged to abut the flexible teeth (45) of the first plurality of flexible teeth (45) when the portion of flexible belt (7) presses against the flexible teeth (45) of the first plurality of flexible teeth (45), tending to distance the first plurality of flexible teeth (45) from the one or more guide walls (50), so as to maintain the portion of flexible belt (7) guided and consequently to further increase the resistance to axial compression of the portion of flexible belt (7) which is housed in the housing (31).
  • the flexible teeth (45) of the first plurality of flexible teeth (45) are preferably interposed between the one or more guide walls (50) and the one or more endrun stops (61, 62).
  • the one or more guide walls (50) and the one or more endrun stops (61, 62) are preferably orientated horizontally when the housing (31) is fixed to the upper flank (27) of the opening (2) made in the wall (5).
  • the first plurality of flexible teeth (45) preferably comprises a first assembly of flexible teeth (71) and a second assembly of flexible teeth (72); the flexible teeth (45) of the first assembly of flexible teeth (71) are opposite the flexible teeth (45) of the second assembly of flexible teeth (72); the one or more switchers (51, 52) comprise a first switcher (51) and a second switcher (52) (see for example figures 6G, 6H ); the first switcher (51) is arranged and conformed to distance the flexible teeth (45) of the first assembly of flexible teeth (71); the second switcher (52) is arranged and conformed to distance the flexible teeth (45) of the second assembly of flexible teeth (72); the one or more endrun stops (61, 62) comprise a first endrun stop (61) and a second endrun stop (62); the first endrun stop (61) is arranged to abut the flexible teeth (45) of the first assembly of flexible teeth (71); the second endrun stop (62) is arranged to abut the flexible teeth (45) of the first assembly of
  • the screening apparatus (100) can also comprise further one or more switchers (53, 54) which are arranged between the one or more guide walls (50), on one side, and the first plurality of flexible teeth (45), on the other side, and which are conformed in such a way as to distance the flexible teeth (45) of the first plurality of flexible teeth (45) from the one or more guide walls (50) during the displacement of the movable bar (3) in the direction (opposite to (G1)) which tends to reduce the length of the portion of flexible belt (7) which is arranged in the housing (31), so that the portion of flexible belt (7) which is located in the housing (31) is maintained interposed between the one or more guide walls (50) and the first plurality of flexible teeth (45).
  • switchers 53, 54
  • the one or more switchers (53, 54) comprise a third switcher (53) and a fourth switcher (54); the third switcher (53) is arranged and conformed to distance the flexible teeth (45) of the first assembly of flexible teeth (71); the fourth switcher (54) is arranged and conformed to distance the flexible teeth (45) of the second assembly of flexible teeth (72).
  • the screening apparatus (100) can further comprise a first upright (17) which is part of the frame (17, 18, 31) and which is fixable to a first lateral flank (28) of the opening (2) made in the wall (5).
  • the screening apparatus (100) can further comprise a second upright (18) which is part of the frame (17, 18, 31) and which is fixable to a second lateral flank (29), opposite the first lateral flank (28), of the opening (2) made in the wall (5).
  • the head (35) can comprise a fin member (19) to which the first lateral edge (21) of the sheet (1) is fixable.
  • the sheet (1) extends between the first upright (17) and the movable bar (3); the portion of flexible belt (7) extends between the movable bar (3) and a second lateral flank (29); the one or more guide walls (50) comprise a first guide wall (47) and a second guide wall (48) which are spaced from one another to define a second through-opening (42) crossable by the upper edge portion (23) of the sheet (1) at the housing part (31) interposed between the first upright (17) and the movable bar (3).
  • the first guide (81) can be arranged in proximity or at the first through-opening (41).
  • the upper edge portion (23) of the sheet (1) can advantageously pass beyond the first guide (81) without interfering either with the first guide (81) or the portion of flexible belt (7) ( figures 10, 14A ).
  • the screening apparatus (100) comprises a plurality of button elements (10).
  • the button elements (10) of the plurality of button elements (10) are borne by the sheet (1) and are arranged at least along the upper edge (22) of the sheet (1); the upper edge portion (23) of the sheet (1) crosses the first guide (81) and the second through-opening (42) in such a way that the button elements (10) of the plurality of button elements (10) are arranged after the second through-opening (42); the button elements (10) of the plurality of button elements (10) and the second through-opening (42) are mutually dimensioned so that the button elements (10) do not pass beyond the second through-opening (42), with the consequence that the upper edge portion (23) of the sheet (1) cannot exit the housing (31).
  • the button elements (10) of the plurality of button elements (10) can also be arranged along the lower edge (24) of the sheet (1), so as to engage with the chain (36).
  • the first guide (81) is distanced (see in particular figures 15A , 16A , 17A ) from the first through-opening (41) in such a way that the upper edge portion (23) of the sheet (1) is distanced from the first guide (81).
  • the following is a more detailed description of the first embodiment, figures from 5 to 13.
  • the first upright (17) is a box.
  • the screening apparatus (100) can comprise a roller cylinder (20) (visible only in figure 7 ) which is housed in the box.
  • the sheet (1) is fixed to the roller cylinder (20) by means of a second lateral edge (25) (visible only in figure 5A ).
  • the sheet (1) can be a curtain or a mosquito screen.
  • Figure 5A illustrates the screening apparatus (100) when the movable bar (3) is in the screening position of the opening (PS), while figure 5B illustrates the screening apparatus (100) when the movable bar (3) is in the removed position of the opening (PD).
  • the remaining figures 5C , 6 , 6A , 6B , 6C, 6D , 7 , 8 illustrate the screening apparatus (100) when the movable bar (3) is in an intermediate position comprised between the positions mentioned above.
  • Figures 6C, 6D illustrate the serpentine progression that the portion of flexible belt (7) assumes when subjected to a compression load of a certain entity: as can be observed, the portion of flexible belt (7) in any case remains internal of the first guide (81), abutting in several areas both the flexible teeth (45) of the first plurality of flexible teeth (45) and the one or more guide walls (50).
  • the one or more guide walls (50) comprise the first guide wall (47) and the second guide wall (48): with the present screening apparatus (100) it is advantageously possible to use a uniform sheet (1), figures 5-13 , or a sheet (1) with button elements (10), as illustrated in figures 14-14C .
  • the fifth end (15) of the flexible belt (6) can be fixed at the second upright (18), the sixth end (16) of the flexible belt (6) can be fixed to the fourth end (14) of the chain (36), while the third end (13) of the chain (36) can be fixed to the first upright (17).
  • the assembly comprising the chain (36) and the flexible belt (6) assume a zig-zag progression, see figures 6 , 8 , 14 .
  • the second embodiment, figures 14-14C differs from the first embodiment due to the fact that the sheet (1) bears the plurality of button elements (10), which has been discussed in the foregoing.
  • the screening apparatus (100) can comprise a second plurality of flexible teeth (46) which are arranged at or in proximity of the first through-opening (41) in order to engage with the upper edge portion (23) of the sheet (1).
  • the fourth embodiment differs from the others in that the fifth end (15) of the flexible belt (6) is fixed to the first upright (17), the sixth end (16) of the flexible belt (6) is free to slide internally of the movable bar (3), the fourth end (14) of the chain (36) is free to slide internally of the movable bar (3). In other words the sixth end (16) and the fourth end (14) are not constrained to one another. As a consequence the assembly comprising the chain (36) and the flexible belt (6) assumes an overturned C-shape, see figure 16 .
  • turret (34) is higher than the third, fourth and fifth embodiments with respect to the second embodiment, compare figures 18A-18D with figures 13A-13D .

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Insects & Arthropods (AREA)
  • Pest Control & Pesticides (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Paper (AREA)
  • Sanitary Device For Flush Toilet (AREA)
EP20180433.3A 2019-06-21 2020-06-17 A screening apparatus for screening an opening made in a wall Withdrawn EP3754149A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102019000009744A IT201900009744A1 (it) 2019-06-21 2019-06-21 Apparato di schermatura per schermare una apertura ricavata in una parete

Publications (1)

Publication Number Publication Date
EP3754149A1 true EP3754149A1 (en) 2020-12-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20180433.3A Withdrawn EP3754149A1 (en) 2019-06-21 2020-06-17 A screening apparatus for screening an opening made in a wall

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EP (1) EP3754149A1 (it)
IT (1) IT201900009744A1 (it)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013064308A1 (en) 2011-11-02 2013-05-10 Mv Line S.P.A. Movable mosquito screen, particularly for windows, doors and the like
WO2015044970A1 (en) * 2013-09-27 2015-04-02 Mv Line S.P.A. Element for moving mosquito nets, curtains and the like
EP3396101A1 (en) * 2017-04-28 2018-10-31 Date System S.r.l. Fly screen with lateral winding for doors or windows

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013064308A1 (en) 2011-11-02 2013-05-10 Mv Line S.P.A. Movable mosquito screen, particularly for windows, doors and the like
WO2015044970A1 (en) * 2013-09-27 2015-04-02 Mv Line S.P.A. Element for moving mosquito nets, curtains and the like
EP3396101A1 (en) * 2017-04-28 2018-10-31 Date System S.r.l. Fly screen with lateral winding for doors or windows

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IT201900009744A1 (it) 2020-12-21

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