EP1495688A2 - Feuille d'arbre artificiel - Google Patents

Feuille d'arbre artificiel Download PDF

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Publication number
EP1495688A2
EP1495688A2 EP04103204A EP04103204A EP1495688A2 EP 1495688 A2 EP1495688 A2 EP 1495688A2 EP 04103204 A EP04103204 A EP 04103204A EP 04103204 A EP04103204 A EP 04103204A EP 1495688 A2 EP1495688 A2 EP 1495688A2
Authority
EP
European Patent Office
Prior art keywords
leaf
lateral elements
central element
transverse section
central
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
EP04103204A
Other languages
German (de)
English (en)
Other versions
EP1495688A3 (fr
EP1495688B1 (fr
Inventor
Marco Calzavara
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.)
Calzavara SpA
Original Assignee
Calzavara SpA
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 Calzavara SpA filed Critical Calzavara SpA
Publication of EP1495688A2 publication Critical patent/EP1495688A2/fr
Publication of EP1495688A3 publication Critical patent/EP1495688A3/fr
Application granted granted Critical
Publication of EP1495688B1 publication Critical patent/EP1495688B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41G—ARTIFICIAL FLOWERS; WIGS; MASKS; FEATHERS
    • A41G1/00—Artificial flowers, fruit, leaves, or trees; Garlands
    • A41G1/007—Artificial trees
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect

Definitions

  • the present invention concerns a leaf for an artificial tree, for example of the type able to camouflage a long, large-size structural element, like the pillar of an antenna for mobile telecommunications, an electric pylon, or suchlike.
  • the present invention concerns the shaping of the structure of the leaf, which reinforces the leaf, making it resistant to stresses while still ensuring the flexibility and elasticity thereof.
  • Artificial trees are known, used to camouflage long structural elements, such as for example telephone antennas, electric pylons or other, the visual impact of which can ruin the natural panorama of the place where they are installed.
  • An example of an artificial tree for concealment of antenna structures is disclosed in EP-A-0.791.976; another example of an artificial tree is disclosed in US-A-2,826,846.
  • Such artificial trees normally include a central trunk from which a plurality of branches spread out, according to the type of tree simulated, whether it be a pine tree, a cypress, a palm tree or other.
  • a plurality of leaves are affixed to every branch, and are shaped as similar as possible to real leaves; they are made of light materials and formed by very flexible structures, conventionally having a substantially constant thickness, in order to simulate, as realistically as possible, under the action of the wind, the characteristic undulating movement thereof.
  • the leaves since they are large and formed by a plurality of foils separated from each other and anchored to a central element, are subjected to stresses, even considerable, due to the weight of the leaf, and the action exerted by the wind thereon.
  • the purpose of the present invention is to achieve a leaf for an artificial tree, advantageously similar to those of the coconut palm, the structure of which is sufficiently resistant to the stresses due to the action of the wind and other atmospheric agents, and which at the same time will maintain the characteristics of flexibility and elasticity which are typical of known leaves.
  • the Applicant has devised, tested and embodied the present invention to overcome the shortcomings of the state of the art, and to obtain these and other purposes and advantages.
  • a leaf for an artificial tree advantageously a leaf similar to those of the coconut palm, according to the present invention comprises at least a central supporting element able to be associated with an element that is functionally similar to the branch of the artificial tree, and a plurality of lateral elements connected to the central element, and representing the lateral foils of a palm leaf.
  • the central element has a transverse section having at least a shaped segment forming a V, a U, a C or other similar shapes.
  • the lateral elements functionally representing the foils of the leaf, are also shaped as a V, a U, a C or other similar or comparable sections.
  • the shaping of the lateral elements can be equal to the central element; simply to give an example, the central element can be V-shaped, like the lateral elements.
  • said equal shapings can be concordant, that is, the lateral elements can have the same direction as the central element, or discordant, that is, with different directions.
  • the shaping of the lateral elements can be different from that of the central element; simply to give an example, the central element can be V-shaped and the lateral elements can be U-shaped, and in another variant said different shapings can have a concordant or discordant direction.
  • the lateral elements can be of a different shape with respect to each other; to give an example, one lateral element can be V-shaped and another lateral element can be U-shaped; and in another variant the shapings can be concordant or discordant.
  • the leaf has a structure that is resistant to loads due to its weight, and also to the stresses exerted by the wind and other atmospheric agents, according to the most suitable combinations.
  • the central element can have a section that differs along its length, so as to define points with different levels of flexibility and elasticity, in order to allow the leaf according to the invention to sway under the action of the wind, in the most realistic manner possible.
  • the shaped segment of the central element allows a greater anchoring surface of the lateral elements to the central element, which further strengthens the structure of the leaf according to the invention.
  • This solution entails another advantage, which is to provide lateral elements with different size and section, so as to confer on the latter a greater resistance to torsions and stresses, for example in the area near where they are anchored to the central element, and greater flexibility, for example in their terminal zone, so as to render the swaying effect of the leaf even more realistic.
  • binding bands are provided able to wrap the two in order to prevent the detachment thereof, even accidental, and/or known clamping means arranged between the leaf and the element functioning as a branch.
  • a leaf 10 according to the present invention is connected to a branch 11 of an artificial tree 12, in this case a coconut palm, which is able to camouflage an antenna 13, for example for the transmission/reception of radio signals, such as those for mobile telecommunications.
  • an artificial tree 12 in this case a coconut palm, which is able to camouflage an antenna 13, for example for the transmission/reception of radio signals, such as those for mobile telecommunications.
  • the leaf 10 comprises a central rib 15 to which are attached a plurality of lateral elements 16 representing the lateral foils of the coconut palm.
  • the central rib 15 comprises a transverse section with a shaped segment 17, so as to confer on such central rib 15 a substantial V shape.
  • the central rib 15 has a thickness S of a few millimeters, which can vary along the length of the rib 15, so that the leaf 10 has the desired rigidity or flexibility.
  • the central element 15 can have a thickness S of some millimeters in the zone comparable to the leaf-stalk of the palm leaf, while it has a thickness S' of about one millimeter towards the tip of the leaf, so as to be more flexible.
  • the segment 17 is shaped so as to define a substantial U shape, while in the other variant shown in fig. 5, the segment 17 defines substantially a C rotated anti-clock-wise and facing upwards.
  • the central rib 15 allows the leaf 10 according to the invention to resist the stresses exerted by atmospheric agents, even when such stresses are particularly strong, such as for example the action of winds in excess of 120 Km/hour.
  • the branch 11 has a shape mating with the transverse section of the central rib 15, and is arranged in correspondence with the latter.
  • the lateral elements 16 have a substantially V-shaped transverse section and, in this case, each of them has a through hole 19 on an upper edge in a zone near the central rib 15; a clamping band 20 is made to pass inside said hole 19, so as to retain the branch 11 on the central rib 15, thus consolidating the coupling of the leaf 10 and branch 11.
  • the clamping bands 20 can be arranged directly in cooperation with the central rib 15 in the intermediate zones between two lateral elements 16.
  • Each lateral element 16 has a different section, according to the distribution of the stresses which it has to support; for example, as shown in fig. 6, the lateral element 16 has a relatively large size and a thickness S" shaped so as to be able to resist possible moments of torsion generated by the action of the wind or by other atmospheric agents. It can be seen in fig. 7, on the contrary, that the same lateral element 16 has, in a zone near its tip, reduced size with respect to that of the section shown in fig. 6, and has a thickness S''' which is less than the thickness S". In this case, such thickness S''' can be as little as one millimeter, advantageously a millimeter and a half, that is, the minimum thickness to make it in the mold. This difference in size between the two sections ensures an optimum structural resistance of the leaf 10 and, at the same time, confers flexibility and elasticity on the leaf 10, so that its behavior due to the atmospheric agents is as realistic as possible.
  • a reinforcement ring 21 is arranged, which further increases the strength of the structure of the leaf 10, allowing it to resist without yielding or breaking under the effect of winds up to 160 Km/hour.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Prostheses (AREA)
  • Aerials With Secondary Devices (AREA)
  • Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
EP04103204A 2003-07-08 2004-07-07 Feuille d'arbre artificiel Expired - Lifetime EP1495688B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SM200300011 2003-07-08
ITSM20030011 2003-07-08
SM200300011A SM200300011B (it) 2003-07-08 2003-07-08 Foglia per albero artificiale

Publications (3)

Publication Number Publication Date
EP1495688A2 true EP1495688A2 (fr) 2005-01-12
EP1495688A3 EP1495688A3 (fr) 2005-01-26
EP1495688B1 EP1495688B1 (fr) 2008-10-22

Family

ID=33448814

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04103204A Expired - Lifetime EP1495688B1 (fr) 2003-07-08 2004-07-07 Feuille d'arbre artificiel

Country Status (6)

Country Link
EP (1) EP1495688B1 (fr)
AT (1) ATE411745T1 (fr)
DE (1) DE602004017254D1 (fr)
ES (1) ES2316926T3 (fr)
PT (1) PT1495688E (fr)
SM (1) SM200300011B (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2826846A (en) * 1956-04-23 1958-03-18 Warren Christmas Trees Inc Artificial tree
EP0791976A2 (fr) * 1996-02-23 1997-08-27 Sectional Poles Africa (Proprietary) Limited Camouflage et cache pour des structures d'antennes

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2826846A (en) * 1956-04-23 1958-03-18 Warren Christmas Trees Inc Artificial tree
EP0791976A2 (fr) * 1996-02-23 1997-08-27 Sectional Poles Africa (Proprietary) Limited Camouflage et cache pour des structures d'antennes

Also Published As

Publication number Publication date
EP1495688A3 (fr) 2005-01-26
DE602004017254D1 (de) 2008-12-04
PT1495688E (pt) 2009-01-29
ES2316926T3 (es) 2009-04-16
ATE411745T1 (de) 2008-11-15
SM200300011A (it) 2005-01-12
SM200300011B (it) 2005-01-12
EP1495688B1 (fr) 2008-10-22

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