• 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:
    The invention relates to a method for destroying noxious plants, in particular invasive plants, this method comprising at least one phase of preparing the ground with a view to freeing access to the deep roots and a phase of treatment consisting in carrying out spraying, at least partial, said deep roots with a treatment liquid and water vapor. The invention also relates to a device for destroying invisible plants comprising first means for drilling the soil (16), second means for carrying out the introduction of an injection nozzle (22, 23, 24, 25) and third means for effecting the simultaneous injection on the roots of said plants of the treatment liquid and of the water vapor.
    公开号:CH710798B1
    申请号:CH00200/16
    申请日:2016-02-16
    公开日:2020-10-15
    发明作者:Helfer André
    申请人:Eltel Sa；
    IPC主号:
    专利说明:

    The present invention relates to a method for destroying noxious plants, in particular invasive plants, this method comprising at least one phase of preparing the ground with a view to providing access to the deep roots of said plants to be destroyed and a treatment phase consisting of in performing an injection, at least partially, into said deep roots.
    [0002] The present invention also relates to a device for destroying noxious plants, in particular invasive plants, this device comprising means for providing, during a phase of preparing the land, access to the deep roots of said plants to be destroyed and means for performing, during a treatment phase, at least partial injection into said deep roots.
    Technical area
    The invention relates to the field of landscaping, the maintenance of country lanes and the borders of watercourses, the arrangement and maintenance of private and public parks, with the objective of elimination of certain plants, said to be invasive, such as in particular various knotweed including Japanese knotweed, various waterweed, cotoneaster, or other invasive plants which tend to proliferate to the detriment of certain native plants and which develop excessively, to the point of suffocating all other vegetation. In addition, they have the particularity of having creeping roots, often very deep, which produce rapid plant expansion in all directions, making their growth totally uncontrollable.
    Prior art
    [0004] Current techniques consist in carrying out either treatments with chemical substances such as herbicides or more specifically defoliants, or mechanical treatments consisting in tearing the plants and especially the roots to eliminate the risks of regrowth generated by root fragments which were not removed at the time of treatment. Mechanical treatment often has to be supplemented by one or more chemical treatments and regular monitoring is required because the risk of active regrowth is very high.
    [0005] The chemical treatment is recognized as being extremely polluting because the herbicides and especially the defoliants are sprayed on the surface, directly on the leaves of the plants with regard to the defoliants or at shallow depth, concerning the herbicides, which promotes the dispersion of these hazardous substances, in particular when the treatment area is exposed to winds or is located near watercourses or water reserves in communication with groundwater. Mechanical treatment requires heavy mechanical equipment, since the treatment requires access to the roots of plants, these roots can be very deep, for example up to four meters for Japanese knotweed. Such a treatment poses the problem of the accessibility of the treatment zone and of the maneuverability of the machines carrying out these treatments, in particular at the edge of watercourses or in steep mountainous areas.
    [0006] Consequently, the methods used to date are not satisfactory and do not allow the so-called invasive plants to be eliminated simply, efficiently and economically, regardless of the areas to be treated. In addition, the mechanical treatments which are the least polluting are unfortunately the heaviest and often impossible to carry out due to access to the site. Treatments using chemicals cannot be applied everywhere, for example due to the proximity of rivers or water supplies. For all these reasons, specialists, landscapers, road workers and civil engineering companies are often powerless to accomplish a mission of maintaining natural sites or public or private areas that have been invaded by various types of invasive plants. This is frequently the case with areas that have been abandoned for some time and need to be cleared to give them new life.
    [0007] In particular, the device for the treatment of harmful plants is known, described by the publication of the American patent application US 2011702883609 A1, which defines a hot water injector, optionally combined with a treatment product for injecting these substances into the soil near said plants to be destroyed. This device comprises a double tank containing respectively hot water, heated in the tank and the treatment product which can be mixed with hot water before being directed towards an injector which operates in the ground at shallow depth. Such a system is primarily intended for domestic use and does not meet the requirements of a professional application for large-scale destruction of invasive noxious plants.
    Disclosure of the invention
    [0008] The present invention proposes to overcome the aforementioned drawbacks by developing an efficient and economical method of destroying invasive plants by acting directly on their roots while avoiding both restrictive and random uprooting of these roots, which would make the extremely cumbersome and expensive process and avoiding treating these roots with polluting chemicals, which would make the process contradictory with respect to the principles of ecological preservation of nature.
    The object is achieved by the method according to the invention as defined by the preamble and characterized in that one carries out, during a first phase, the drilling of the soil of an area invaded by said invasive plants in creating at least one channel going up to the level of the roots of said invasive plants, during a second phase, the introduction into said channel, substantially up to the level of said roots of said invasive plants, of at least one nozzle of injection to diffuse treatment products destructive of said invasive plants, and during a third phase, the simultaneous injection into said roots of said invasive plants, by means of said at least one injection nozzle, of said treatment liquid and of water vapor.
    Preferably, said at least one channel is drilled by means of a metal bar provided with a tip, the water vapor is conveyed through a central duct of said metal bar and the water vapor is injected into said roots through at least one orifice formed in said tip and constituting said injection nozzle.
    [0011] Advantageously, the treatment liquid can be injected into said roots through at least one orifice formed in said tip and constituting said injection nozzle, simultaneously with said water vapor.
    The water vapor can advantageously be produced by means of a mobile generator coupled to said central duct of said metal bar.
    This object is also achieved by the device according to the invention as defined by the preamble and characterized in that it comprises first means for carrying out, during a first phase, the drilling of the soil of a zone invaded by said invasive plants by creating at least one channel going up to the level of the roots of said invasive plants, second means for carrying out, during a second phase, the introduction into said channel, substantially up to the level of said roots said invasive plants, at least one injection nozzle for diffusing treatment products which destroy said invasive plants, and third means for carrying out, during a third phase, the simultaneous injection into said roots of said invasive plants, by means of said at least one injection nozzle, said treatment liquid and water vapor.
    Said first processing means comprise a metal bar provided with a tip arranged to perform the preparatory work of drilling a channel in the ground at least up to the level of said deep roots.
    Said second processing means are arranged to introduce into said channel drilled in the ground, a tip carrying at least one injector opening out at the periphery of said tip and which is in communication with a central duct formed inside said metal bar.
    [0016] Said injector advantageously comprises at least one distribution chamber which communicates with said central duct of the metal bar, this distribution chamber being connected to a plurality of injectors which open out on the peripheral wall of the conical tip.
    [0017] Said third means preferably comprise a pump for supplying said treatment liquid through said central duct of said metal bar to said plurality of injectors.
    [0018] According to a variant, said injection nozzle comprises a plurality of openings for dispersing the water vapor in a space at least approximately centered on said conical tip.
    According to another variant, said injection nozzle comprises a plurality of openings for dispersing the treatment liquid in a space at least approximately centered on said conical tip, simultaneously with the water vapor.
    Said tip comprises, according to a preferred embodiment, several sets of openings arranged at different levels to ensure treatment of the roots at various depths.
    To be made autonomous, the device advantageously comprises an autonomous generator of water value coupled to said central channel of said metal bar.
    The present invention and its advantages will be better understood on reading the detailed description of various preferred embodiments, with reference to the accompanying drawings given by way of indication and not limiting, in which:FIG. 1 represents a schematic view of a basic embodiment of complete equipment provided with a device intended to eliminate invasive plants according to the method of the invention according to the invention, andFIG. 2 represents an advantageous embodiment of the essential means necessary for carrying out the injection of the treatment liquid into the roots of invasive plants according to the invention.
    Best way to carry out the invention
    Referring to Figure 1, the complete equipment which carries the device for treating invasive plants according to the invention may be in the form of a mechanical excavator or any other machine which has the power and equipment necessary to transport the material and carry out preparation operations on the field of the action. In the example shown, the carrier vehicle 10 is commonly used in civil engineering. It can be mounted on wheels or on caterpillars 11, and provided with an articulated arm 12, for example a front arm, the free end of which 13 carries a perforating mechanism 14 or the like. This perforating mechanism 14 comprises, for example, a housing 15 in which is housed a pneumatic or hydraulic cylinder arranged to actuate a chisel 16, the purpose of which is to drill holes in the soil to the desired depth which must be sufficient to reach the roots. deep of said invasive plants that it is desired to exterminate. This depth depends on the type of plant you plan to destroy, and it is therefore essential to know the average depth of their roots. In the case of Japanese knotweed, for example, this depth can reach up to four meters, which makes it difficult or even impossible to treat by known methods. For other invasive plants, the depth will need to be adjusted knowingly.
    In the case of a completely autonomous treatment device, the vehicle is advantageously adapted to carry a water tank associated with a steam generator 17, integrating a reserve 18 arranged to contain suitable treatment liquid to initiate the required destruction operations. The reserve 18 is associated with a pump 19 which is connected to a pipe 20 coupled to said chisel 16, which is constructed to perform an injector or sprayer function, in addition to its primary function of drilling holes in the ground .
    FIG. 2 mainly represents the end of the chisel 16 which preferably consists of a rigid rod or bar 21, traversed longitudinally by a central channel 22 intended to be connected upstream with the pipe 20 and which is in communication downstream with a distribution chamber 23 formed in a conical tip 24 mounted at the end of said rod 21. The distribution chamber 23 opens onto a plurality of nozzles or injectors 25 which each have an outlet orifice on the wall conical tip 24. The purpose of these orifices is to distribute the water vapor and the root treatment liquid with a substantially spherical distribution around the conical tip 24. The combined action of the heat transmitted by the water vapor. possibly overheated water and specific treatment liquid, selected according to the nature of the harmful herbs to be eliminated, guarantees eradication of these herbs on the treatment area.
    It is understood that the rigid rod 21 and the conical tip 24 can be constructed differently depending on the applications envisaged. However, their function remains unchanged, namely to punch holes and inject water vapor. The chisel 16 and the rod 21 could be independent, that is to say the chisel could have only one function consisting of perforating the ground and should then be supplemented by a second tool comprising the rod 21 and serving only to inject the treatment liquid.
    At the time of treatment, the water vapor is injected into the holes drilled in the ground by means of the chisel 16 actuated in a linear back-and-forth movement by said perforating mechanism 14. The rigid rod 21 and the conical tip 24 connected to the water vapor generator conveys the treatment liquid to the nozzles or injectors 25 to spray this vapor on the roots to be treated.
    [0028] Alternatively, the conical tip 24 can have several sets of peripheral openings 25, arranged at different levels so as to allow the treatment of roots at various depths by simultaneous injection of water vapor and treatment liquid.
    [0029] The invention is not limited to the embodiment described. For more limited applications, the device could be mounted on a vehicle of more limited size and power. Similarly, for the treatment of very large areas invaded by invasive plants, the carrier vehicle could be adapted accordingly, on a carrier vehicle larger in size and / or equipped with more substantial water and treatment liquid tanks, exclusively dedicated to this type of treatment.
    权利要求:
    Claims (13)
    [1]
    1. A method of destroying noxious plants, in particular invasive plants, this method comprising at least one phase of preparing the ground with a view to freeing access to the deep roots and a phase of treatment consisting in carrying out an injection, at least partially, in said deep roots with a treatment liquid, characterized in that one carries out, during a first phase, the drilling of the soil of an area invaded by said invasive plants by creating at least one channel extending to the level of the roots of said invasive plants, during a second phase, the introduction into said channel, substantially up to the level of said roots of said invasive plants, of at least one injection nozzle for diffusing treatment products which are destructive of said invasive plants , and during a third phase, the simultaneous injection into said roots of said invasive plants, by means of said at least one injection nozzle, of said draft liquid ement and water vapor.
    [2]
    2. Method according to claim 1, characterized in that said at least one channel is drilled by means of a metal bar provided with a tip, in that the water vapor is conveyed through a conduit center of said metal bar and in that the water vapor is injected into said roots through at least one orifice formed in said tip and constituting said injection nozzle.
    [3]
    3. Method according to claim 2, characterized in that the treatment liquid is injected into said roots through at least one orifice formed in said tip and constituting said injection nozzle, simultaneously with said water vapor.
    [4]
    4. Method according to any one of claims 1 to 3, characterized in that the water vapor is produced by means of a mobile generator coupled to said central duct of said metal bar.
    [5]
    5. Device for destroying noxious plants, in particular invasive plants, this device comprising means for performing an injection, at least partially, into the deep roots of said invasive plants, characterized in that it comprises first means for performing, at during a first phase, the drilling of the soil of an area invaded by said invasive plants by creating at least one channel going up to the level of the roots of said invasive plants, second means for carrying out during a second phase, the introduction into said channel, substantially up to the level of said roots of said invasive plants, of at least one injection nozzle for diffusing treatment products destructive of said invasive plants, and of third means for carrying out, during a third phase, the simultaneous injection into said roots of said invasive plants, by means of said at least one injection nozzle, of said treatment liquid and of water vapor.
    [6]
    6. Device according to claim 5, characterized in that said first treatment means comprise a metal bar provided with a tip arranged to perform the preparatory work of drilling a channel in the ground at least up to the level of said deep roots. .
    [7]
    7. Device according to claim 5, characterized in that said second processing means are arranged to introduce into said channel drilled in the ground, a tip carrying at least one injector opening at the periphery of said tip and which is in communication with a central duct formed inside said metal bar.
    [8]
    8. Device according to claim 7, characterized in that said injector comprises a distribution chamber which communicates with said central duct of the metal bar, this distribution chamber being connected to a plurality of injectors which open out on the peripheral wall of said conical tip.
    [9]
    9. Device according to claim 8, characterized in that said third means comprise a pump for supplying said treatment liquid through said central duct of said metal bar to said plurality of injectors.
    [10]
    10. Device according to claim 5, characterized in that said injection nozzle has a plurality of openings for dispersing water vapor in a space at least approximately centered on said conical tip.
    [11]
    11. Device according to claim 5, characterized in that said injection nozzle comprises said plurality of openings for dispersing the treatment liquid in a space at least approximately centered on said conical tip, simultaneously with the water vapor.
    [12]
    12. Device according to claim 6, characterized in that said tip comprises several sets of openings arranged at different levels to ensure treatment of the roots at various depths.
    [13]
    13. Device according to any one of claims 5 to 9, characterized in that it comprises an autonomous generator of water value coupled to said central duct of said metal bar.
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    同族专利:
    公开号 | 公开日
    CH710798A2|2016-08-31|
    CH710750A1|2016-08-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JPH07163285A|1993-12-15|1995-06-27|Wakaba Hara|Method for removing weed and weeder for carrying out the same method|
    US8435459B2|2003-01-07|2013-05-07|Micropyretics Heaters International, Inc.|Heating and sterilizing apparatus and method of using same|
    CA2734457A1|2010-05-19|2011-11-19|John Leach|Apparatus and method for killing unwanted vegetation|
    US8622653B2|2011-05-10|2014-01-07|Arnold Lipes|Apparatus and method for sterilizing seed beds in soil|DE102016224733A1|2016-12-12|2018-06-14|Robert Bosch Gmbh|Weed damage device|
    法律状态:
    2019-02-15| NV| New agent|Representative=s name: ACTOSPHERE SARL, CH |
    优先权:
    申请号 | 申请日 | 专利标题
    CH00212/15A|CH710750A1|2015-02-17|2015-02-17|The process of destruction of weeds and apparatus for implementing the method.|
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