EP3527741A1 - System zur abdeckung und verdeckung einer bodenfläche - Google Patents

System zur abdeckung und verdeckung einer bodenfläche Download PDF

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Publication number
EP3527741A1
EP3527741A1 EP19157074.6A EP19157074A EP3527741A1 EP 3527741 A1 EP3527741 A1 EP 3527741A1 EP 19157074 A EP19157074 A EP 19157074A EP 3527741 A1 EP3527741 A1 EP 3527741A1
Authority
EP
European Patent Office
Prior art keywords
cable
shaft
pair
wound
sheet element
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Withdrawn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
EP19157074.6A
Other languages
English (en)
French (fr)
Inventor
Roberto Bettega
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP3527741A1 publication Critical patent/EP3527741A1/de
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F10/00—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins
    • E04F10/02—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins
    • E04F10/06—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building
    • E04F10/0644—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building with mechanisms for unrolling or balancing the blind
    • E04F10/0655—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building with mechanisms for unrolling or balancing the blind acting on the movable end, e.g. front bar
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F10/00—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins
    • E04F10/02—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins
    • E04F10/06—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building
    • E04F10/0666—Accessories
    • E04F10/0681—Support posts for the movable end of the blind
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H15/00—Tents or canopies, in general
    • E04H15/32—Parts, components, construction details, accessories, interior equipment, specially adapted for tents, e.g. guy-line equipment, skirts, thresholds
    • E04H15/322—Stretching devices
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H15/00—Tents or canopies, in general
    • E04H15/32—Parts, components, construction details, accessories, interior equipment, specially adapted for tents, e.g. guy-line equipment, skirts, thresholds
    • E04H15/58—Closures; Awnings; Sunshades
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F10/00—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins
    • E04F10/02—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins
    • E04F10/06—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building
    • E04F10/0644—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building with mechanisms for unrolling or balancing the blind
    • E04F10/0648—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building with mechanisms for unrolling or balancing the blind acting on the roller tube

Definitions

  • the present invention generally finds application in the field of outdoor covers and particularly relates to a system for covering and shading a ground area.
  • these cover systems comprise a shaft rotating about a substantially horizontal axis supported by a first pair of bearing poles.
  • the shaft is rotatably driven along the axis of rotation by driving means for winding and unwinding the flexible covering and shading sheet element.
  • EP2765254 discloses a covering and shading system comprising a plurality of cables wound on respective pulleys for winding and unwinding a flexible sheet element.
  • the sheet element is connected to elastic counteracting means which are adapted to constantly keep it under tension as it is being driven.
  • the elastic means comprise a spring which is fitted in a box-like enclosure having one end connected to a bearing pole and another end connected to a pair of vertical-axis fixed pulleys.
  • a first drawback of this arrangement is that the elastic counteracting means are exposed to the outside environment, and hence to the risk of damage or deterioration over time.
  • EP2216460 discloses a covering and shading system comprising a flexible sheet element which is selectively wound on a rotating shaft by means of a plurality of cables connected to elastic counteracting means coaxially fitted in a bearing pole.
  • the bearing pole comprises a hoist system interposed between the counteracting means and one of the cables for keeping the flexible sheet element under tension during winding and unwinding.
  • a first drawback of this arrangement is that the provision of the hoist increases complexity in the construction and maintenance on the entire system.
  • the driving means comprise a winch which is installed on the bearing pole and can be entirely accessed by a user, who is thus exposed to the risk of contacting the tensioned cables of the system.
  • a further drawback of these arrangements is that the elastic counteracting means must exert a very high pull force on the cables to keep the sheet element under constant tension over time.
  • the technical problem addressed by the present invention is to provide a system for covering and shading a ground area that is able to wind and unwind a flexible sheet element to keep it under constant tension while ensuring user safety.
  • the object of the present invention is to solve the aforementioned problem, by providing a system for covering and shading a ground area that is highly efficient and relatively cost-effective.
  • a particular object of the present invention is to provide a system as described hereinbefore that can tension the flexible sheet element during winding and unwinding.
  • Another particular object of the present invention is to provide a system as described hereinbefore that can afford totally safe user operation.
  • Another object of the present invention is to provide a system as described hereinbefore that is able to protect the elastic counteracting means of the flexible sheet element from the outside environment.
  • Yet another object of the present invention is to provide a covering and shading system as described hereinbefore, that can both reduce installation times and afford easy maintenance.
  • a system for covering and shading a ground area as defined in claim 1 comprising a first pair of ground-anchored vertical bearing poles which are adapted to support a shaft rotating about a substantially horizontal axis, a second pair of ground-anchored vertical tensioning poles, on each side of the shaft, wherein each of the poles of the second pair is adapted to support a respective pulley.
  • the system further comprises a flexible covering/shading sheet element which may be wound/unwound on the shaft between a fully unwound open end position and a fully wound closed end position, driving means adapted to promote controlled rotation of the shaft about the axis of rotation, a first cable transversely returned on the fixed-axis pulleys with opposite ends connected to the flexible sheet element, a second cable with a driving end interacting with the shaft and an opposite driven end adapted to longitudinally interact with the first cable, and a third cable having an upper end adapted to longitudinally interact with the first cable and the lower end connected to elastic counteracting means adapted to keep the flexible sheet element under tension while it is being wound and unwound.
  • the driving means comprise a drum, which is rigidly joined to the shaft on which the driving end of the second cable is wound.
  • the elastic counteracting means comprise a spring, which is housed in one of the bearing poles, to be entirely protected from the outside environment. Furthermore, the spring has an upper portion connected to the lower end of the third cable and a lower portion secured to the lower end of the bearing pole that houses it. The bearing pole that houses the spring has a respective pulley at its upper end for returning the third cable.
  • the driving end of the second cable is wound on the drum in a direction substantially orthogonal to the ground from top to bottom and the driven end and the driving end of the second cable and the upper end the third cable are placed above the shaft and the flexible sheet element, to prevent any inadvertent contact and risk to users.
  • This arrangement affords constant tensioning of the flexible sheet element while the latter is being wound and unwound.
  • the particular position of the elastic counteracting means facilitates total protection from the outside environment and allows the operator to operate under totally safe conditions.
  • a system 1 for covering and shading a ground area which is preferably adapted for use in outdoor areas such as gardens, swimming pools or awnings in civil and commercial environments or for other similar applications.
  • the system 1 comprises at least one first pair of vertical bearing poles 2A, 2B with lower ends 3 anchored to the ground, which are adapted to support a shaft 4 rotating about a substantially horizontal axis X.
  • the shaft 4 may be supported at a predetermined height from the ground which can be selectively varied by a user by appropriate adjustment means, not shown.
  • the system 1 comprises at least one second pair of vertical tensioning poles 5A, 5B, which are anchored to the ground by their respective lower ends 6 and placed on each side of the shaft 4.
  • each of the tensioning poles 5A, 5B of the second pair is adapted to support, at the upper end 7, a respective pulley 8A, 8B having a fixed axis Z, whose operation will be described below.
  • the fixed axis of rotation Z of these pulleys 8A, 8B is substantially vertical.
  • the system 1 comprises a flexible covering/shading sheet element 9 that can be wound/unwound on the shaft 4 between a fully unwound open end position and a fully wound closed end position.
  • the flexible sheet element 9 may be a "sail"-type element and have a substantially rectangular shape with a pair of corners 10A, 10B attached to the longitudinal ends 12A, 12B of the shaft 4 and a pair of free corners 11A, 11B situated on each side of the shaft 4, each facing a tensioning pole 5A, 5B of the second pair of poles.
  • the bearing poles 2A, 2B and the tensioning poles 5A, 5B may be moved toward or away from each other to increase or decrease the covered ground area.
  • the shaft 4 comprises driving means 13 adapted to promote controlled rotation of the shaft 4 about the axis of rotation X to thereby unwind the flexible sheet element 9 and move the pair of free corners 11A, 11B closer to their respective tensioning poles 5A, 5B.
  • the driving means 13 may be actuated to rotate the drive shaft 4 in the opposite direction to wind the sheet element 9 and move the pair of free corners 11A, 11B away from their respective tensioning poles 5A, 5B.
  • the driving means 13 may be accommodated at a longitudinal end 12A of the rotating shaft 4 proximate to one of the bearing poles 2A and may comprise a drum 14 of well-known type which is rigidly joined to the shaft 4.
  • the driving means 13 may comprise an electric motor coupled to the drum 14, and adapted to promote the rotation of the shaft 4 at a variable rotation speed, and means may be provided for remote control of the motor, not shown.
  • the driving means 13 may comprise alternative manual means including a crank, not shown, which can be selectively coupled to the drum 14 for operation in case of emergency and power outage.
  • the driving means 13 may further comprise an automatically or manually operable limit-stop device when the flexible sheet element 9 is in a fully unwound and/or fully wound positions to turn off or stop the rotation of the rotating shaft 4.
  • the covering and shading system 1 comprises a plurality of cables 15 which are designed to wind and unwind the flexible sheet element 9 in combination with the driving means 13.
  • the system 1 comprises a first cable 16 that is transversely returned on the vertical fixed-axis pulleys 8A, 8B and having opposite ends 17A, 17B connected to the free corners 11A, 11B of the flexible sheet element 9.
  • these fixed-axis pulleys 8A, 8B may be mounted to their respective tensioning poles 5A, 5B in a distal position with the interposition of a rigid or partially elastic tension wire 18.
  • the covering/shading system 1 comprises a second cable 19 with one driven end 20A longitudinally interacting with the first cable 16 and one opposite driving end 20B interacting with the rotating shaft 4, wound on the drum 14.
  • an intermediate portion 16' of the first cable 16 may have a substantially W-shaped profile and be wound around a pair of first movable pulleys 21A, 21B having a vertical axis Z, which are transversely aligned with each other.
  • a second movable pulley 22 with a vertical axis Z may be interposed between the pair of first movable pulleys 21A, 21B in a longitudinally offset position relative to the latter and may be connected to the driven end 20a of the second cable 19.
  • the first cable 16 is sequentially wound on a fixed-axis pulley 8A located on a tensioning pole 5A, a movable pulley 21A of the first pair, the second movable pulley 22, the other movable pulley 21B of the first pair and the other fixed-axis pulley 8B located on the other tensioning pole 5B.
  • the drum 14 surrounds the respective driving end 20B of the second cable 19 to longitudinally move the driven end 20A interacting with the first cable 16 by means of the second movable pulley 22 toward a bearing pole 2A and as a result to transversely move the free corners 11A, 11B of the sheet element 9 toward the respective tensioning poles 5A, 5B.
  • the system 1 comprises a third cable 23 having an upper end 24A adapted to longitudinally interact with the first cable 16 and connected to the pair of first movable pulleys 21A, 21B having a vertical axis Z via respective tension wires 25.
  • the third cable 23 comprises a lower end 24B, opposite to the upper end 24A, which is connected to elastic counteracting means 26 adapted to keep the flexible sheet element 9 under tension while it is being wound and unwound.
  • the elastic counteracting means 26 are housed in one of the bearing poles 2B and comprise a spring 27 which extends coaxial to the bearing pole 2B that houses it, so that the elastic means 26 will be entirely protected from the outside environment, as shown in the embodiment of the figures.
  • the elastic means 26 may be selected from the group comprising springs, hydraulic pistons, swinging counterweights and bands made of polymeric material with elastic properties.
  • the spring 27 may be selected from the group comprising helical springs, air springs, gas springs and magnetic springs.
  • the spring 27 has an upper portion 27' directly connected to a lower end 24B of the third cable 23 and a lower portion 27" directly secured to the lower end 3 of the bearing pole 2B that houses it, with no interposed means for reducing the pull force, as best shown in FIGS. 3 and 4 .
  • the elastic counteracting means 26 may be fully extended when the flexible sheet element 9 is in the open end position and will be fully retracted when the element 9 is in the closed end position.
  • This configuration facilitates easy and quick installation of the whole covering and shading system 1.
  • the system 1 may comprise adjustment means, not shown, for manual or automatic adjustment of the pull force of the spring 27, which are located at the bearing pole 2B that houses the latter.
  • the adjustment means may be totally accessible from the outside by the user and may be placed at the lower end 3 of the bearing pole 2B that houses the spring 27, preferably at the lower portion 27" thereof.
  • the bearing pole 2B which houses the spring 27 may have, at its upper end 28, a respective pulley 29 having a fixed horizontal axis Y for returning the third cable 23.
  • the fixed horizontal axis Y of this pulley 29 is substantially transverse to the axis of rotation X of the shaft 4.
  • this pulley 29 interacts with the third cable 23 in an intermediate position between the movable pulleys 21A, 21B of the first pair and the spring 27 housed in the bearing pole 2B.
  • this pulley 29 may be entirely inserted in its respective bearing pole 2B for the third cable 23 to form an angle of about 90° at the upper end 28 of the pole and to reduce the tensioning force that acts on the spring 27.
  • the bearing pole 2A opposite to the one that houses the spring 27 comprises a respective pulley 30 having a fixed horizontal axis Y for returning the second cable 19, which is located above the driving means 13 and the drum 14.
  • the driving end 20B of the second cable 19 which interacts with the rotating shaft 4 may be wound on the drum 14 in a direction substantially orthogonal to the ground from top to bottom.
  • driven end 20A and the driving end 20B of the second cable 19 and the upper end 24A of the third cable 23 are placed above the shaft 4 and the flexible sheet element 9, as shown in FIGS. 1 and 2 .
  • This particular configuration prevents any inadvertent contact and risk of injury to users.
  • the fixed-axis pulley 30 which returns the second cable 19 may be mounted to its respective bearing pole 2A in a distal position with the interposition of a rigid or partially elastic tension wire 31.
  • the second cable 19 also forms an angle of about 90° above the drum 14 to reduce the tensioning force that acts on the driving means 13.
  • the pair of first movable pulleys 21A, 21B connected to the third cable 23 and the second movable pulley 22 connected to the second cable 19 are placed at a predetermined distance from each other. Furthermore, the driving end 20B of the second cable 19 opposite to the second movable pulley 22 is only partially wound on the drum 14.
  • the drum 14 winds the driving end 20B of the second cable 19, thereby causing the second movable pulley 22 to longitudinally move toward the bearing pole 2A opposite to the one that houses the spring 27.
  • the translational movement of the latter will pull the first cable 16 and, as a result, will move the free transverse corners 11A, 11B of the flexible sheet element 9 connected to the ends 17A, 17B of the first cable 16 to move toward their respective tensioning pole 5A, 5B.
  • the system fulfills the intended objects and particularly affords constant tensioning of the flexible sheet element during winding and unwinding, while ensuring user safety.
  • the present invention may find application in industry, because it can be produced on an industrial scale in the construction and installation of tensile structures.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Tents Or Canopies (AREA)
  • Road Signs Or Road Markings (AREA)
  • Aerials With Secondary Devices (AREA)
EP19157074.6A 2018-02-16 2019-02-14 System zur abdeckung und verdeckung einer bodenfläche Withdrawn EP3527741A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102018000002763A IT201800002763A1 (it) 2018-02-16 2018-02-16 Sistema di copertura e ombreggiatura di un'area del suolo

Publications (1)

Publication Number Publication Date
EP3527741A1 true EP3527741A1 (de) 2019-08-21

Family

ID=62167690

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19157074.6A Withdrawn EP3527741A1 (de) 2018-02-16 2019-02-14 System zur abdeckung und verdeckung einer bodenfläche

Country Status (2)

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EP (1) EP3527741A1 (de)
IT (1) IT201800002763A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020133049A1 (de) 2020-12-10 2022-06-15 Warema Renkhoff Se Sonnenschutzanlage mit Spannvorrichtung
EP4033047A1 (de) * 2021-01-22 2022-07-27 Warema Renkhoff SEd Sonnenschutzanlage mit einem zugsystem

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10333407A1 (de) * 2003-07-15 2005-02-10 Herzog Gmbh & Co Kg Planendach
EP2765254A1 (de) * 2013-02-08 2014-08-13 Alexander Hoekstra Rollvorrichtung für Sonnensegel, Markisen und dergleichen
WO2016181303A1 (en) * 2015-05-13 2016-11-17 Sailshadow S.R.L. Shade sail

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10333407A1 (de) * 2003-07-15 2005-02-10 Herzog Gmbh & Co Kg Planendach
EP2765254A1 (de) * 2013-02-08 2014-08-13 Alexander Hoekstra Rollvorrichtung für Sonnensegel, Markisen und dergleichen
WO2016181303A1 (en) * 2015-05-13 2016-11-17 Sailshadow S.R.L. Shade sail

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020133049A1 (de) 2020-12-10 2022-06-15 Warema Renkhoff Se Sonnenschutzanlage mit Spannvorrichtung
EP4033047A1 (de) * 2021-01-22 2022-07-27 Warema Renkhoff SEd Sonnenschutzanlage mit einem zugsystem

Also Published As

Publication number Publication date
IT201800002763A1 (it) 2019-08-16

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