• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Protective cover and method of installation and removal of the cover on a crop field. The present invention proposes a method of installing a protective cover for crop fields that comprises having a matrix of vertical struts (30), placing a plurality of horizontal valley lines (10) tensioned at a first height (A1) interspersed between the rows of uprights, place horizontal ridge lines coinciding with the rows of uprights at an installation height (A0) lower than the first height (A1), arrange horizontal transverse roof bands (40) passing over the lines of ridge (20) and below the valley lines (10), raise the ridge lines (20) to a second height (A2) higher than the first height (A1) and fix them to some supports (31) of the struts (30) by tensioning the cover strips (40) in a zigzag shape. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2785848A1
    申请号:ES201930316
    申请日:2019-04-05
    公开日:2020-10-07
    发明作者:Garcia Gregorio Velasco
    申请人:G Plant Agronomist S L；
    IPC主号:
    专利说明:

    [0002] PROTECTIVE COVER AND COVER INSTALLATION AND REMOVAL METHOD
    [0003] Technical field
    [0005] The present invention concerns a protective cover and a method of installing and removing the same from on a crop field.
    [0007] The protective covering will typically serve to generate a greenhouse effect by increasing the temperature in the growing field, by means of a covering transparent to sunlight. However, the protective cover can also offer protection against inclement weather, such as hail, frost or even excessive sunlight, against birds or insects. Some of these potential uses of the protective cover can be achieved with perforated covers or mesh, which allow the passage of rainwater, rather than with a transparent cover to sunlight.
    [0009] State of the art
    [0010] Protective covers for crop fields are known in the state of the art.
    [0011] It is common to use perforated meshes or transparent plastic bands to cover fields, offering protection or producing an increase in temperature due to the greenhouse effect.
    [0013] Different structures are known to support the mentioned covers above the cultivated fields.
    [0015] A commonly used structure consists of a plurality of rows of parallel struts, said struts supporting a network of tensioned cables that support the material constituting the cover, offering a large and resistant cover.
    [0016] The constituent material of the cover usually consists of flexible cover strips, extended side by side, covering the entire surface of the crop field.
    [0017] Examples of this type of covers are described in documents EP2353370B1, EP2783566 and ES2565696.
    [0019] However, in all these cited examples, the process of placing and / or removing the cover strips is very laborious and therefore expensive, since it requires raising said material above all or some of the tensioned cables, or even requiring extend them in an undulating path forming valleys and ridges, passing under some cables and over others.
    [0021] Furthermore, the solutions described propose fixing the cables at the upper ends of the struts in a non-removable manner, that is, for example, leaving the cables fixed by clamps, clamps or screws to said upper end of the struts.
    [0022] Therefore these solutions are not suitable to facilitate the removal or replacement of the cover strips, for example with seasonal periodicity, in an economically viable way.
    [0024] Document US5311699 describes an alternative cover in which a method is proposed that facilitates its installation and occasional removal, raising the cover band above the cables and pulling it until it is deployed above said cables, being simply supported transversely above multiple cables, this solution being undesirable as it is not very resistant to the wind, which can easily lift parts of the cover band or make it vibrate against the cables causing premature wear.
    [0026] Brief description of the invention
    [0028] The present invention concerns, according to a first aspect, a method of installing a cover on a crop field, the method including in a known way the following steps:
    [0029] a) arranging a plurality of tensioned valley lines at a first height above said cultivation field and parallel to each other;
    [0031] b) arranging a plurality of ridge lines parallel to each other and parallel to the valley lines, interspersed between the valley lines;
    [0033] c) anchoring each ridge line in supports located at the upper ends of the struts constituting a row of struts, the ridge lines being tensioned at a second height above the crop field greater than the first height;
    [0035] d) arranging a plurality of tensioned flexible roof strips, arranged transversely with respect to the ridge and valley lines, each roof strip passing over all the ridge lines and below all the valley lines;
    [0036] Valley lines and ridge lines shall be understood to be cables, whether they are wires, metal cables with twisted strands, metal cables covered with plastic, plastic cables, or any other solution that offers inelastic cables resistant to high tensions and weathering. .
    [0037] The struts can be metal struts, for example hollow tubes, but other materials such as reinforced concrete are also contemplated.
    [0039] Said struts will be in a vertical or nearly vertical position and will be supported on the crop field at their lower end, for example driven into the ground or supported on a footing.
    [0041] Preferably the cover strips are made of a transparent or non-transparent plastic material depending on the light path recommended for each crop, to allow the passage of sunlight on the crop field.
    [0043] The proposed installation method further includes, in a way not known in the available state of the art, the following additional steps:
    [0045] • arrange the ridge lines, during step b), above the cultivation field at an installation height lower than the first height;
    [0047] • arrange the roof strips, during step d), with the ridge lines at the installation height, extending the roof strips horizontally between the ridge lines positioned at the installation height and the valley lines positioned at the first height, before performing step c).
    [0049] Therefore the proposed installation method comprises initially arranging the ridge lines at an installation height less than the first height at which the valley lines are installed, defining a horizontal passage between the ridge lines and the valley lines.
    [0051] The cover strips extend horizontally through said passage, extending below the valley lines located at the first height and above the ridge lines arranged at the installation height.
    [0052] Subsequently, the ridge lines are hoisted until they are anchored in the supports at the upper ends of the struts, then the ridge lines located at the second height remain above the valley lines arranged at the first height.
    [0053] It will be understood that the upper end of the prop is the portion of the prop furthest from the growing field, for example the last 50cm of each prop.
    [0054] When carrying out said lifting of the ridge lines, parts of the roof bands positioned above the ridge lines will also be raised, as they are dragged by the ridge lines, the roof bands adopting a geometry in the form of a zigzagging roof, being the roof bands stretched down by the valley lines, and up by the ridge lines.
    [0055] Optionally, it is proposed that the installation height is equal to zero, leaving the ridge lines supported on the cultivation field before performing step c).
    [0056] This greatly facilitates the installation operations of the cover bands since it allows the cover bands to be extended directly on the crop field above the ridge lines, that one or more operators can transit through said crop field passing above ridge lines while comfortably and safely extending deck bands, or even using machinery that can circulate above the crop field and over ridge lines spanning over it for quick extension of the roof strips transversely to said ridge lines.
    [0057] According to another embodiment of the invention, it is proposed that step c) be carried out by lifting successive sections of each ridge line to a height greater than the second height, and the subsequent deposition of each of said sections of ridge line in a corresponding bracket in the form of a bracket or cradle of the upper end of the struts, located at the second height.
    [0058] In other words, a section of a ridge line is raised, lifting with it the transverse and superimposed roof bands to said ridge line, raising the section of ridge line to a height slightly higher than the second height to then deposit said ridge line section on a support located at the upper end of a strut located at the second height. Said support will be in the form of a corbel or cradle in such a way that it will retain the deposited section of ridge line under the effect of gravity and the tension of the ridge line, preventing it from falling.
    [0059] It will be understood that a bracket in the form of a bracket is a lateral protrusion of a strut that defines on its upper face a supporting plane that will ideally include a recess or slot in which to fit the ridge line portion to prevent its displacement.
    [0060] It will also be understood that a cradle-shaped support is defined by a superiorly accessible V- or U-shaped housing, with a bottom between two sides. facing each other, configured to retain the ridge line portion at its bottom between the two facing sides. Said cradle-shaped support may be defined at the upper end of the pillar, or within the pillar by an inverted L-shaped cut accessible from one side of the pillar, or by an element attached laterally to the pillar.
    [0061] The lifting of the successive sections of each ridge line can be carried out, for example, with the help of at least one pole equipped, at its upper end, with a bracket in the form of a corbel or cradle, fixing a section of ridge line on the pole support, lifting the pole, and lowering the pole, depositing the section of ridge line on the prop support and releasing it from the pole support.
    [0063] This operation can be carried out manually by one operator, or by several operators, thus managing to distribute the weight to be lifted among them.
    [0065] It is also proposed, optionally, that the aforementioned step a) of the method also includes arranging a plurality of tensioning lines, each one being tensioned and anchored at a lower height than the first height in at least two struts of two rows of struts adjacent, said tension line passing over the valley line located at the first height and interposed between said two rows of adjacent struts.
    [0067] In other words, said tension lines will pull the valley line downwards, maintaining its tension and therefore the tension of the roof bands.
    [0069] A second aspect of the present invention relates to a method of removing said envelope cover from the cultivation field.
    [0071] The removal method is essentially a reverse version of the installation method. Said withdrawal method includes the following steps, known per se:
    [0073] a) arranging a plurality of longitudinally tensioned valley lines at a first height above said crop field and parallel to each other;
    [0074] b) arranging a plurality of longitudinally extending ridge lines parallel to each other and parallel to the valley lines, sandwiched between the valley lines;
    [0076] c) anchor each ridge line in supports located at the upper ends of vertical struts arranged in longitudinal alignment, constituting a row of struts, the ridge lines being tensioned at a second height above the crop field greater than the first height ;
    [0077] d) arranging a plurality of tensioned flexible roof strips, arranged transversely with respect to the ridge and valley lines, each roof strip passing over all the ridge lines and below all the valley lines;
    [0078] However, the removal method also includes the following steps, which are not known in the existing state of the art:
    [0080] • release some or all of the ridge lines from the corresponding supports, placing them at an installation height above the crop field that is lower than the first height, leaving the roof bands unstressed;
    [0082] • collect each cover strip by compacting it in a direction parallel to the direction of the ridge and valley lines, leaving most of the crop field uncovered, or by removing it in the transverse direction at a lateral end of the crop field. covered crop.
    [0084] Preferably only half of the ridge lines will be released, releasing one out of every two ridge lines alternating the released and unreleased lines.
    [0086] The compaction of the cover bands consists of longitudinally folding or creasing the cover bands, forming folds along the entire length of said cover bands in a direction transverse to the ridge and valley lines, thus achieving that said bands of cover are still supported by said ridge and valley lines, but leave most of the cultivated field uncovered.
    [0088] The extraction of the cover bands consists of extracting said cover bands along one of the sides of the crop field, in a direction transverse to the ridge and valley lines.
    [0090] Optionally, it is also proposed that stage c) be carried out by lifting successive sections of each ridge line to a height greater than the second height, releasing said sections of ridge line from the corresponding supports in the form of a corbel or cradle at the end. of the struts located at the second height, and the subsequent lowering of the aforementioned ridge line sections, avoiding their new deposition on the aforementioned strut supports, up to the installation height.
    [0092] The lifting of the successive sections of each ridge line can be carried out with the help of at least one pole equipped with a bracket in the form of a corbel or cradle at its upper end, fixing a section of ridge line on the pole support. , lifting the pole releasing the section of the ridge line from the upright support, and lowering the pole placing the section of the ridge line at the installation height.
    [0094] In essence, this stage of the method is also a reverse embodiment of one of the proposals referred to the installation method described above.
    [0096] According to a third aspect, the present invention concerns a protective cover for a cultivation field.
    [0097] Said cover includes, in a manner known per se in the state of the art:
    [0099] • a plurality of valley lines stretched longitudinally at a first height above said crop field and parallel to each other;
    [0101] • a plurality of longitudinally extending ridge lines, parallel to each other and parallel to the valley lines, interspersed between the valley lines, each ridge line being anchored in supports located at the upper ends of vertical struts arranged in longitudinal alignment constituting a row of struts, the ridge lines being tensioned at a second height above the crop field greater than the first height;
    [0103] • a plurality of tensioned flexible roof bands, arranged transversely to the ridge and valley lines, each cover band passing over all the ridge lines and below all the valley lines;
    [0104] However, in the proposed cover it is proposed that, in a way not known in the existing state of the art, the mentioned supports of the upper end of the struts have the shape of a bracket or cradle and that they be located at the second height, the lines being of ridge pressed against said supports by effect of their tension and gravity, providing a removable anchor.
    [0106] The supports described allow the ridge lines to be easily and quickly anchored or released from said supports, allowing to modify the height of the ridge lines, even without the need to climb a ladder if using poles, not being necessary to loosen screws or release any type of closure or retention clip, but at the same time ensuring a correct fixation of the position of the ridge lines even in the face of strong wind or storm conditions.
    [0108] It is also proposed that said protective cover may further include a plurality of tensioning lines, each one tensioned and anchored in two struts of two rows of struts. adjacent to a height less than the first height, said tension line passing over the ridge line interposed between said two rows of adjacent struts.
    [0110] It is also proposed that the ridge lines and / or the valley lines are metal cables with a plastic coating. The plastic liner reduces wear on the roof strips in contact with the ridge and valley lines due to vibration caused by the wind, and facilitates the sliding of the roof strip over or under the ridge lines and valley, facilitating installation, removal, compaction or extraction operations.
    [0112] In addition, it is proposed that above said protective cover there is a protective grating composed of grating strips supported on the same struts as the protective cover and provided with a construction identical to that of the protective cover, said grating strips being supported by some additional ridge lines, located parallel to and above the ridge lines of the protective cover, and by additional valley lines, located parallel to and above the valley lines of the protective cover.
    [0113] In other words, each upright will support, in addition to the ridge line responsible for supporting the roof strips, an additional ridge line intended to support a protective grating.
    [0115] The additional ridge line will be anchored in supports located at the upper ends of the vertical struts arranged in longitudinal alignment constituting a row of struts, the additional ridge lines being tensioned at a third height greater than the second height.
    [0117] Additional valley lines are also located between the additional ridge lines, which will be tensioned at a height higher than the first height where the valley lines intended to support the roof bands are located, but less than the third height.
    [0118] The protective grating shall be composed of grating bands transverse to the additional ridge lines and the additional valley lines, said grating bands passing in tension above the additional ridge lines and below the additional valley lines.
    [0120] This construction allows the protective grid to be tensioned above the protective cover, without said protective grate interfering with the above-described protective cover installation and removal operations.
    [0121] The grate strips can be installed and / or removed with the same method described in relation to the cover strips.
    [0123] The protective grid protects the field and the protective cover from inclement weather such as hail, and from bird attack, even if the protective cover is removed or compacted.
    [0125] Typically the last struts of each row of struts will have inclined cables that join their upper end with a shoe that transmits the loads generated by the tension of the ridge lines to the ground without subjecting said last struts to bending.
    [0127] It is also contemplated that the ridge lines and / or the valley lines at their ends beyond the last strut of the strut rows include an inclined section that connects them with a shoe, transmitting their tension to said shoe.
    [0129] Similarly, the roof bands, at their ends, may include an inclined section that descends to the ground where they are fixed, maintaining their tension, or they may include at their ends a bar connected to the ground by inclined cables, thus avoiding causing bending. on the struts of the last row of struts.
    [0131] Geometric positional references, such as parallel, perpendicular, tangent, etc. they admit deviations of up to ± 5 ° with respect to the theoretical position defined by said nomenclature.
    [0133] Other characteristics of the invention will appear in the following detailed description of an embodiment.
    [0134] Brief description of the figures
    [0136] The foregoing and other advantages and characteristics will be more fully understood from the following detailed description of an embodiment with reference to the attached drawings, which should be taken by way of illustration and not limitation, in which:
    [0138] Fig, 1 shows a schematic plan view of a crop field covered with a protective cover consisting of four rows of parallel struts, each with four vertical struts, the protective cover also including four parallel ridge lines coinciding with the rows of struts and three valley rows interspersed between the ridge lines and between the strut rows, the protective cover also including three cover bands transverse to the ridge lines and the valley lines, passing over the ridge lines and below the valley lines. In this embodiment one of the cover strips is also shown only partially extended to the width of the cultivation field, according to an intermediate stage of the installation method of the protective cover;
    [0140] Fig. 2 shows the same schematic plan view as Fig. 1 but one of the cover strips being retracted, having been compacted in the direction of the ridge and valley lines;
    [0142] Fig. 3 shows a schematic cross-section to the ridge and valley lines, in a stage of the installation method in which the ridge lines have been released from the strut supports and lowered to a flush installation height. of the crop field, showing this figure how a cover band is being extended above the ridge lines and below the valley lines unrolling from a roll. In the embodiment shown in this figure, above the cover bands that make up the protective cover, a protective grating is located, formed by grating bands that pass over additional ridge lines, located parallel to and above the ridge lines. at a third height, and below additional valley lines, located parallel to and above the valley lines;
    [0143] Fig. 4 shows the same schematic sectional view as Fig. 3 but in a final stage of the installation method in which an operator, with the help of a pole, raises the ridge lines to the second height and fixes them on strut supports, tensioning the roof bands between the ridge lines and the valley lines;
    [0145] Fig. 5 shows a schematic cross-section to the ridge and valley lines equivalent to that shown in Fig. 3 but according to another embodiment in which the valley lines are tensioned downwards by transverse lines, limiting said cross lines the installation height at which the ridge lines can be located during the initial stages of the installation method;
    [0147] Fig. 6 shows the same schematic sectional view as Fig. 5 but in the final stage of the method in which the ridge lines have been hoisted and fixed to the strut supports or are in the process of being;
    [0149] Fig. 7 shows a longitudinal schematic section coinciding with a ridge line of the protective cover shown in Fig. 6 provided with a protective grating above the protective cover, the cover strips being installed;
    [0151] Fig. 8 shows the same longitudinal schematic section as Fig. 7 but with the cover strips collected by compaction in the direction parallel to the ridge lines;
    [0152] Fig. 9 shows an enlarged view of four possible embodiments of the bracket in the form of a bracket or cradle located at the upper end of the strut.
    [0153] Detailed description of a realization example
    [0155] The attached figures show exemplary non-limiting illustrative embodiments of the present invention.
    [0157] According to a preferred embodiment of the invention shown in the attached figures, the protective cover consists of an array of struts 30 distributed in rows of parallel struts over a crop field 1.
    [0159] The protective covering further includes a plurality of mutually parallel ridge lines 20 coincident with the strut rows and valley lines 10 parallel to each other and parallel to the ridge lines 20 sandwiched between the strut rows.
    [0160] The valley lines 10 are arranged horizontally tensioned at a first distance A1 above the cultivation field 1. The ridge lines 2 are arranged horizontally tensioned at a second distance A2 above the cultivation field 1 greater than the first distance A1.
    [0161] Roof bands 40 are arranged in a transverse direction with respect to said ridge lines 20 and valley 10, said cover bands 40 passing over all ridge lines 20 located at the second distance A2 and below all valley lines 10 located at the first distance A1, remaining in tension and adopting a zigzag shape, forming a protective cover of the crop field 1, as shown in Figs. 4, 6 and 7.
    [0162] Preferably, the cover strips are made of transparent plastic, thus allowing the passage of sunlight into the crop field, generating a greenhouse effect while protecting against birds, insects, rain, hail, frost and other inclement weather.
    [0163] Each strut 30 has, in its upper end portion, a bracket 31 in the form of a bracket or cradle located at the second height A2. Said support 31 will be located above, to one side, or within the upright 30, defining a housing in which to retain, by gravity, a ridge line 20 in a removable manner.
    [0165] Thus each ridge line 20 will be, once the protective cover is installed, supported at the second height A2 by the supports 31 of the struts 30 of a row of struts.
    [0166] The valley lines 10 will be retained at the first height A1 by the roof bands 40 in tension, although at least the ends of each valley line 10 will be configured to support each valley line 10 at the first height A1 during the operations of installation and removal of the protective cover.
    [0167] By way of example, it is proposed to include cables that reproduce the zigzag shape of the cover bands 40 that hold the valley lines 10 at the first height A1 also when they have not yet been placed or when the cover bands 40 have been removed. .
    [0169] Alternatively, it is proposed to place some supports at the first height A1 on some struts located in coincidence with the ends of the valley lines 10.
    [0171] Optionally contemplated, as shown in Figs. 5 to 8, that the valley lines 10 are also tensioned downwards by means of transverse lines 60 that pass over the valley lines 10 and that are tensioned and anchored to the adjacent struts 30 at a height lower than the first height A1 .
    [0173] Fig. 9 shows four examples of possible embodiments of said support 31 of the struts 30 in which the ridge lines 20 are retained.
    [0175] According to the first example, starting from the left, the support 31 consists of a groove made in the upper end of the strut 30 where to house and retain said ridge line.
    [0177] The second example shows a support 31 consisting of a screw fixed to the upright 30 and projecting laterally like a bracket, allowing a ridge line to be supported on top.
    [0178] The third example of support 31 consists of a hook attached to the side of the strut 30.
    [0179] Finally, the fourth example of support 31 consists of a cut made in the body of the upright 30 in the shape of an inverted L that allows the ridge line to be introduced laterally through the horizontal part of the cut that communicates with the side of the upright 30, and which it also allows said ridge line 20 to be retained within the vertical portion of the gravity inverted L-shaped cut.
    [0180] The supports 31 of the struts 30 described above make it possible to release the ridge line 20 from said support 31 only by slightly raising said ridge line 20 accompanied by a lateral displacement thereof.
    [0181] In Figs. 4 and 6 it is shown how an operator, with the help of a pole 50 provided at its upper end with a bracket 51 in the form of a bracket or cradle, allows to easily carry out the operation of releasing the ridge line 20 from the support 31 of the strut 30, or carry out the reverse operation of fixing the ridge line 20 to said support 31.
    [0182] The present invention proposes an installation method consisting of releasing the ridge lines 20 from the supports 31 from the struts 30, lowering the ridge lines 20 to an installation height A0 lower than the first height A1, as shown in Figs . 3 and 5, and proceed to extend the cover strips 40 above the ridge lines 20 located at the installation height A0 and below the valley lines 10 located at the first height A1 in a rectilinear path transverse to the ridge lines 20 and to valley lines 10 which greatly facilitates the extension of said cover band 40.
    [0183] Once all the roof bands 40 have been extended, some operators proceed to raise the ridge lines 20 again and, with the help of the aforementioned poles 50, proceed to fix said ridge lines 20 to the corresponding supports 31 of the struts 30, the ridge lines 20 being fixed to the second height A2 above the first height A1, tensioning the cover strips 40 in a zigzag fashion.
    [0184] When there are no transverse lines 60 connecting the valley lines 10 with the adjacent struts 30, as in the examples shown in Figs. 3 and 4, the ridge lines 20 can be lowered to the crop field level if desired, in which case the installation height A0 will be equal to zero. This allows easy movement of operators and machinery above the ridge lines 20 allowing the cover strips 40 to be extended without hindrance.
    [0185] If, on the other hand, there are transverse lines 60 that tension the valley lines 10 downwards, as is the case shown in Figs. 5, 6, 7 and 8, then said transverse lines 60 limit the installation height A0 at which the ridge lines 20 can be located, preventing the ridge lines 20 from descending below the anchor points of the transverse lines 60 with struts 30.
    [0186] In this case the cover strips 40 can be extended horizontally, but at a certain distance above the cultivation field 1.
    [0188] This solution also allows the free movement of operators and machinery through the cultivation field, in this case below the ridge lines 20 located at the installation height A0.
    [0189] The proposed method also contemplates the removal of the cover strips 40, which can be removed by means of a reverse operation to the installation operation described so far, or which, on the contrary, can be simply compacted by plating or creasing in a direction parallel to the direction of the ridge lines 20, as shown in Figs. 2 and 8.
    [0190] In order to carry out the compaction of the cover strips 40, it is necessary to reduce the stress to which said cover strips 40 are subjected. This can be achieved for example by releasing from the supports 31 and lowering to the installation height A0 only some of the ridge lines 20, for example one out of every three ridge lines 20.
    [0191] Additionally, it should be noted that in Figs. 3 through 8 are shown embodiments in which the protective cover includes a protective grid formed by grid strips 41 positioned above the cover strips 40.
    [0193] The grating bands 41 will be supported in a manner analogous to the cover bands 40, by means of additional ridge lines 21 parallel and superimposed on the ridge lines 20 at a third height A3 and by means of additional valley lines 11 parallel and overlapping the valley lines 10.
    [0195] The grate bands 41 may also be made of a plastic or textile material and will be configured to prevent the entry of birds and hail, and to mitigate the influence of frost that could damage the crops and also the cover bands 40.
    [0197] The same installation and removal method discussed in relation to cover strips 40 could be applied to grating strips 41.
    [0199] It will be understood that the different parts that make up the invention described in one embodiment can be freely combined with the parts described in other different embodiments even though said combination has not been explicitly described, provided that there is no harm in the combination.
    权利要求:
    Claims (12)
    [1]
    1. Method of installing a cover on a crop field (1), the method including the following steps:
    a) arranging a plurality of valley lines (10) stretched longitudinally at a first height (A1) above said cultivation field (1) and parallel to each other;
    b) arranging a plurality of ridge lines (20) extending longitudinally parallel to each other and parallel to the valley lines (10), interspersed between the valley lines (10);
    c) anchoring each ridge line (20) on supports (31) located at the upper ends of vertical struts (30) arranged in longitudinal alignment constituting a row of struts, leaving the ridge lines (20) tensioned to a second height (A2) above the cultivation field (1) greater than the first height (A1);
    d) arranging a plurality of tensioned flexible cover bands (40), arranged transversely with respect to the ridge lines (20) and the valley lines (10), each cover band (40) passing over all the lines of ridge (20) and below all valley lines (10);
    characterized in that the installation method further includes:
    • arranging the ridge lines (20), during step b), above the cultivation field (1) at an installation height (A0) lower than the first height (A1);
    • arranging the roof strips (40), during step d), the ridge lines (20) being at said installation height (A0), the roof strips (40) extending horizontally between the ridge lines (20) positioned at the installation height (A0) and the valley lines (10) positioned at the first height (A1), before performing step c).
    [2]
    2. Installation method according to claim 1, wherein the installation height (A0) is equal to zero, the ridge lines (20) being supported on the cultivation field (1) before performing step c).
    [3]
    3. Installation method according to claim 1 or 2 in which step c) is carried out by lifting successive sections of each ridge line (20) to a height greater than the second height (A2), and the subsequent deposition of each one of said sections of line ridge (20) in a corresponding bracket (31) in the form of a bracket or cradle of the upper end of the struts (30), located at the second height (A2).
    [4]
    4. Installation method according to claim 3, wherein the lifting of the successive sections of each ridge line (20) is carried out with the help of at least one pole (50) equipped with a bracket (51) in the form of a corbel or cradle. at its upper end, fixing a section of ridge line (20) on the pole support (50), lifting the pole (50), and lowering the pole (50), depositing the section of ridge line (20) in the support (31) of the strut (30) and releasing it from the support (51) of the pole (50).
    [5]
    5. Installation method according to claim 1, wherein step a) of the method further includes arranging a plurality of tensioning lines (60), each one being tensioned and anchored at a height less than the first height (A1) at least in two struts (30) of two rows of adjacent struts, said tension line (60) passing over the valley line (10) located at the first height (A1) and interposed between said two rows of adjacent struts.
    [6]
    6. Method of removing a cover from a crop field (1), the method including the following steps:
    e) arranging a plurality of valley lines (10) stretched longitudinally at a first height (A1) above said cultivation field (1) and parallel to each other;
    f) arranging a plurality of ridge lines (20) extending longitudinally parallel to each other and parallel to the valley lines (10), interspersed between the valley lines (10);
    g) anchoring each ridge line (20) on supports (31) located at the upper ends of vertical struts (30) arranged in longitudinal alignment constituting a row of struts, leaving the ridge lines (20) tensioned to a second height (A2) above the cultivation field (1) greater than the first height (A1);
    h) arranging a plurality of tensioned flexible cover bands (40), arranged transversely with respect to the ridge lines (20) and the valley lines (10), each cover band (40) passing over all the lines of ridge (20) and below all valley lines (10);
    characterized in that the withdrawal method further includes:
    • release some or all of the ridge lines (20) from the corresponding supports (31), placing them at an installation height (A0) above the cultivation field (1) lower than the first height (A1), leaving the bands cover (40) unstressed;
    • collect each cover band (40) by compacting it in a direction parallel to the direction of the ridge (20) and valley (10) lines, leaving most of the crop field (1) uncovered, or by its extraction in the transverse direction by a lateral end of the covered cultivation field (1).
    [7]
    7. Removal method according to claim 6, wherein step c) is carried out by lifting successive sections of each ridge line (20) to a height greater than the second height (A2), releasing said sections of ridge line ( 20) of the corresponding supports (31) in the form of a bracket or cradle of the upper end of the struts (30) located at the second height (A2), and the subsequent descent of the mentioned sections of ridge line (20) avoiding their new deposition on the mentioned supports (31) of the struts (30), up to the installation height (A0).
    [8]
    8. Removal method according to claim 7, wherein the lifting of the successive sections of each ridge line (20) is carried out with the help of at least one pole (50) equipped with a bracket (51) in the form of a corbel or cradle at its upper end, fixing a section of ridge line (20) on the support (51) of the pole (50), lifting the pole (50) freeing the section of ridge line (20) from the support (31) of the upright (30), and lowering the pole (50) placing the section of the ridge line (20) at the installation height (A0).
    [9]
    9. Protective cover for cultivation field (1) that includes:
    • a plurality of valley lines (10) stretched longitudinally at a first height (A1) above said cultivation field (1) and parallel to each other;
    • a plurality of ridge lines (20) extending longitudinally, parallel to each other and parallel to the valley lines (10), interspersed between the valley lines (10), each ridge line (20) being anchored in supports ( 31) located at the upper ends of some vertical struts (30) arranged in longitudinal alignment constituting a row of struts, the ridge lines (20) being tensioned at a second height (A2) above the cultivation field (1) greater than the first height (A1);
    • a plurality of tensioned flexible roof bands (40), arranged transversely to the ridge lines (20) and to the valley lines (10), each cover band (40) passing over all the ridge lines ( 20) and below all valley lines (10);
    characterized in that:
    said supports (31) at the upper end of the struts (30) are in the form of a bracket or cradle and are located at the second height (A2), and the ridge lines (20) are pressed against said supports (31) by effect its tension and gravity, providing a removable anchor.
    [10]
    10. Protective cover according to claim 9, wherein said protective cover further includes a plurality of tension lines (60), each one tensioned and anchored in two struts (30) of two rows of adjacent struts at a height less than the first height (A1 ), said tension line (60) passing over the valley line (10) interposed between said two rows of adjacent struts.
    [11]
    Protective cover according to claim 9 or 10, wherein the ridge lines (20) and / or the valley lines (10) are metal cables with a plastic coating.
    [12]
    12. Protective cover according to claim 9, 10 or 11 wherein above said protective cover there is a protective grating made up of grating strips (70) supported on the same struts (30) as the protective cover and provided with an identical construction to that of the protective cover, said grating bands (41) being supported by additional ridge lines (21), located parallel to and above the ridge lines (20) of the protective cover and anchored to an additional support ( 32) located at the upper end of the upright (30) at a third height (A3) higher than the second height (A2), and by additional valley lines (11), located parallel to and above the valley lines ( 10) from the protective cover.
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    同族专利:
    公开号 | 公开日
    EP3949723A1|2022-02-09|
    WO2020201606A1|2020-10-08|
    ES2785848B2|2021-02-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20040049991A1|2000-12-15|2004-03-18|Avraham Arbel|Multi-purpose structure|
    US20040003536A1|2002-07-05|2004-01-08|Robert Stefan|Greenhouse|
    EP2232983A2|2009-03-16|2010-09-29|BayWa Aktiengesellschaft|Connection element for initial fixing of a ceiling-shaped textile sheet|
    ES2579910A1|2016-03-07|2016-08-17|Nova Fruticultura, S.L.|Device of tensionation and immobiliation of antigranizo, anti-insect or climate networks |
    CA2048157C|1991-07-30|1993-11-23|David C. Huffman|Shade house, parts thereto and a method of building same|
    DE102010001692A1|2010-02-09|2011-08-11|BayWa Aktiengesellschaft, 81925|Hood for placing on a concrete post|
    ITBO20110357A1|2011-06-22|2012-12-23|Magif S A S Di Cappi Angelo & C|PROTECTION SYSTEM FOR MACCANIZED COVERING OF VEGETABLE CROPS.|
    CH707840A1|2013-03-28|2014-09-30|Quality Entpr Establishment|Weather protection device for crops, particularly fruit trees, as well as a fastening element for such a device.|
    法律状态:
    2020-10-07| BA2A| Patent application published|Ref document number: 2785848 Country of ref document: ES Kind code of ref document: A1 Effective date: 20201007 |
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    优先权:
    申请号 | 申请日 | 专利标题
    ES201930316A|ES2785848B2|2019-04-05|2019-04-05|PROTECTIVE COVER AND COVER INSTALLATION AND REMOVAL METHOD OVER A GROWING FIELD|ES201930316A| ES2785848B2|2019-04-05|2019-04-05|PROTECTIVE COVER AND COVER INSTALLATION AND REMOVAL METHOD OVER A GROWING FIELD|
    EP20784772.4A| EP3949723A1|2019-04-05|2020-04-03|Protective cover and method for the installation and removal of said cover over a crop field|
    PCT/ES2020/070225| WO2020201606A1|2019-04-05|2020-04-03|Protective cover and method for the installation and removal of said cover over a crop field|
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