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WO2001024629A1 - Retained-pressure lever sprayer for phitosanitary products - Google Patents

Retained-pressure lever sprayer for phitosanitary products Download PDF

Info

Publication number
WO2001024629A1
WO2001024629A1 PCT/ES1999/000313 ES9900313W WO0124629A1 WO 2001024629 A1 WO2001024629 A1 WO 2001024629A1 ES 9900313 W ES9900313 W ES 9900313W WO 0124629 A1 WO0124629 A1 WO 0124629A1
Authority
WO
WIPO (PCT)
Prior art keywords
backpack
lever
piston
hole
sprayer
Prior art date
Application number
PCT/ES1999/000313
Other languages
Spanish (es)
French (fr)
Inventor
Mikel Irizar Igarzabal
Original Assignee
Goizper, S. Coop.
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 Goizper, S. Coop. filed Critical Goizper, S. Coop.
Priority to PCT/ES1999/000313 priority Critical patent/WO2001024629A1/en
Priority to AU62039/99A priority patent/AU6203999A/en
Publication of WO2001024629A1 publication Critical patent/WO2001024629A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
    • B05B9/085—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump
    • B05B9/0877—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump the pump being of pressure-accumulation type or being connected to a pressure accumulation chamber
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
    • A01M7/0003—Atomisers or mist blowers
    • A01M7/0017—Portable atomisers, e.g. knapsack type

Definitions

  • the object of the invention focuses on a special arrangement and configuration of the sprayer components, which allows a substantial simplification in the construction process thereof, with the consequent cost reduction, and which facilitates the assembly and disassembly operations thereof, all with optimal functionality from an operational point of view.
  • Spraying sprayers of phytoquelary products generally for use in agriculture, offer different versions, one of which is the portable backpack sprayers, which consist of a container container of liquid to be sprayed, equipped with rigs through which can be attached to the back of the user, emerging from said tank a flexible hose topped in a lance for the application of the product and that has a manually operated valve to allow or not the exit of the product, exit that, obviously, is performed through the corresponding spray nozzle.
  • the portable backpack sprayers consist of a container container of liquid to be sprayed, equipped with rigs through which can be attached to the back of the user, emerging from said tank a flexible hose topped in a lance for the application of the product and that has a manually operated valve to allow or not the exit of the product, exit that, obviously, is performed through the corresponding spray nozzle.
  • This type of sprayers incorporates a lever that is located on one of the sides of the backpack to be operated by the user with one hand, while with the other handles the spear, lever that acts on a suction-impellent pump located inside of the tank, to drive the fluid contained in it through the lance.
  • the pump is generally constituted by a cylinder, fixed to the tank in the base, cylinder that is open superiorly to receive the corresponding piston, while inferiorly it presents some openings or holes that allow access of the fluid contained in the tank to the inside of a chamber defined between the cylinder itself and the piston, establishing the corresponding suction valve in the communication between the tank and the chamber.
  • the piston is embodied in a piston and a hollow rod, inside which a liquid outlet line is housed towards the lance, said piston incorporating a discharge valve that opens and closes the passage of the liquid into the hollow rod and, in consequently, the passage of the liquid towards the lance.
  • said hollow rod also constitutes a regulation tank, as a lung, in such a way that when the lever is actuated the piston rises and the suction chamber is filled with liquid from the tank, while the actuation of said lever in the opposite direction it causes the piston to descend and the passage of the liquid from the suction chamber to the lung or regulation tank.
  • liquid is pumped into the regulator tank, a liquid that, after each pumping, is at a higher pressure inside said tank, in such a way that when acting on the handle of the lance, the liquid leaves under pressure and sprayed through the nozzle.
  • Lever sprayers of the type described appear, for example, in the Spanish invention patent with application number 9001604, and in the utility model also Spanish with application number 8903741, of which the applicant himself is the owner.
  • the sprayer that is proposed has its lung or regulator tank physically independent of the piston, which allows welding, in the same operation, the base of the backpack , the housing and the aforementioned lung, also allowing a structurally much simpler and cheaper piston to be used, since the rod thereof can materialize in a simple crosshead.
  • valve mechanisms both suction and discharge, have also been remarkably simplified, allowing extremely fast and simple assembly and disassembly, through "clip" type coupling means.
  • the jacket in which the piston plays incorporates in its opposite base to the latter a communication hole with the reservoir, sealed by means of a flap established inside the cylinder, acting as a non-return valve, which opens said hole during the phase of aspiration of the piston and that closes it automatically during the compression phase, placket provided with a central hole that communicates with another hole also centered on the base of the jacket and that is in permanent communication with a conduit that runs through the base of the backpack and that communicates with the lung or regulation chamber, which as previously stated is physically independent of the pumping system, which is fixed by welding to the base of the backpack and that is directly connected to the said hole lower, which is finished off in the classic connection for the lance, with the particularity that in this lower hole another non-return valve is established, which isolates the lung from the pumping group during the suction maneuver of the latter and that It tends permanently to the closing situation due to the effect of a spring.
  • the assembly constituted by the piston and its corresponding jacket, which crosses the upper base of the backpack with the collaboration of a seal, is topped off at a neck that diametrically crosses the lower hole of the base of the backpack, communicating with said hole, and incorporates in its lower and free end a pair of flexible wings, topped in interlocking harpoons, so that said pumping assembly is fixed to the bottom or base of the backpack, by simple "plugging" towards the limit situation of blocking of said harpoons, which are directly accessible from the outside to also allow an easy disassembly maneuver.
  • the outlet duct in which the corresponding connection for the lance is established is also pluggable in a sealed manner in the breast of the lower duct of the backpack, being carrier of the non-return valve and spring that tends to the situation of closing of the same, set that is equally attachable by plug and fixable with the collaboration of a clip, which also allows easy assembly and disassembly
  • the actuator lever thereof is structured based on a lightweight material , as for example injected in plastic, provided with its articulated end of connection to the body of the backpack with two holes, one for the ee of joint articulated to the body of the backpack and another for coupling of the transmission rod, with the particularity of that said rod has at its corresponding end a double orthogonal bending, determining for said end of a "U" configuration, capable of engaging in the second hole defining with the lever itself a cover conveniently fixed thereto, so that previously to the coupling of said cover the rod can be coupled laterally therein, through its "U” end, and more concretely also through a torn hole of said lever, torn hole that becomes a circular hole after the Implantation of the lid, so that the latter not only improves the aesthetic appearance of the assembly but also acts as a retention element for the rod,
  • Figure 1 shows a retained pressure lever sprayer for phytosanitary products made in accordance with the object of the present invention, according to a front elevation view in which said sprayer appears mayonally sectioned to clearly show its interior structure.
  • Figure 3. Shows an enlarged detail of Figure 1, at the level of the piston coupling area to the upper base of the backpack.
  • Figure 4. Shows an enlarged detail of Figure 1 at the level of the coupling area of the pumping group to the lower base of the backpack.
  • Figure 5. Shows another enlarged detail of figure 1, in this case at the level of the coupling of the lung or regulating tank to the lower base of the body of the backpack.
  • Figure 6. Shows an exploded perspective view of the actuator lever of the sprayer and the complementary transmission rod for actuation of the pump.
  • Figure 7.- Shows a detail in side elevation of the tilting end of said lever, in the coupling phase of the complementary rod.
  • Figure 8.- Shows a sectional detail of the assembly represented in the previous figure, according to the cutting line A-B of said figure.
  • Figure 9.- Shows, finally, a section similar to that of figure 8 in which the rod has been stabilized in the working position by implanting the complementary cover.
  • the sprayer that is recommended is structured from a tank (1), container of the phytosanitary product to be sprayed, provided with coupling means at the back of the user, not shown in the figures, and equipped with a pumping mechanism in which a lever (2), pivotally mounted on one side of the tank or backpack participates
  • the rod (4) is embodied in a simple crosshead provided in its upper extremity of a cylindrical and sealed envelope (8), which plays on a cylindrical neck (9), internal extension of the upper base of the backpack (1), with interposition of a sealing gasket (10) retained by a closing lid (11), so that the aforementioned rod (4) is perfectly guided by its upper extremity, sealing the upper base of the backpack tightly.
  • the piston (5) that ends the lower extremity of the rod (4) incorporates a retainer (12), fixed thereto with the collaboration of a nut (13), establishing said seal (12) adequate sealing for the piston (5) inside the jacket (6), which has an eccentric hole (14) that adapts to the lower base of the backpack, which, in collaboration with a channel (15) from the bottom of the backpack itself, establishes communication with the tank (1), as can be seen especially in the detail of figure 4, collaborating with this hole (14) a placket (16) established in the bottom of the jacket (6) and provided with an axial hole (17) facing another hole (18), change axially, from the bottom of the shirt (6), which extends inferiorly in a neck (19), internally closed , provided with a lateral opening (20) for communication with a longitudinal hole (21) of the lower base of the backpack, said neck (19) being properly sealed with the collaboration of two joints (22-22 ') located immediately above and below the longitudinal hole (21), and further extending said neck (19) in a pair of flexible wings (2
  • a unidirectional valve (29) is established, assisted by a spring (30), which tends to keep it permanently in a closed situation, but nevertheless allows its opening when the pressure inside the duct (21) it is higher than the pressure existing in the lung (27), said window (28) also establishing direct communication with the lance through the outlet connection (7).
  • said outlet connection (7) is part of a tube (31), axially attachable in the terminal portion of the longitudinal duct (21) of the bottom of the housing and sealed with the collaboration of a sealing gasket (32) , with this tube (31) being monopieza the spring (30) of operation of the unidirectional valve (29) and the valve itself (29), set that is easily attachable and detachable in its housing, by axial plugging, stabilizing in limit situation Working with the collaboration of a clip (33) that collaborates in the aforementioned ease of maneuver.
  • the operation of the sprayer is as follows:
  • the lever (2) is embodied in a piece of plastic, of appropriate length, which at the opposite end of its handle (34), that is to say at the end of coupling to the tank (1 ), incorporates a cylindrical hole (35), for implantation of the tilting axis of said lever (2), and suitably distanced from it a second hole in which two laterally adjacent sectors are established, in correspondence with the respective faces of the lever, an external sector (36) of cylindrical configuration and an internal sector (37) of torn configuration, which extends radially from the imaginary through axis through the center of the hole or cylindrical housing (36), said hole being or torn sector (37) intended to allow passage through the corresponding end of the rod (3), which adopts a "U" configuration, so that its middle branch (38) is of sufficient amplitude so that its branch lateral and free (39) can access the sector or cylindrical housing (36), while said lateral branch (39) is of adequate length so that the rod (3) can swing inside said housing (36), when its middle branch (38) adopts the
  • This axial arrangement, after mounting the rod (3), is achieved with the collaboration of a cover (40) materialized in a disc that seals the mouth of the housing (36) and is provided with an expansion (41), parallel to its imaginary axis, finished off in a prismatic block (42), capable of sealing the said torn hole (37) of the lever (2), leaving a small space free which, together with the end corresponding to said torn hole (37) , determine a cylindrical housing for tilting the middle branch (38) of the rod (3).
  • the lever (2) results easily obtainable in an injection molding operation, it is easily mounted on the transmission rod (3), which is locked in a working situation with the collaboration of the cover (40), obtainable analogously to the lever itself ( 2), and also allowing easy disassembly of these elements, when necessary.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Insects & Arthropods (AREA)
  • Pest Control & Pesticides (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Catching Or Destruction (AREA)

Abstract

The sprayer is characterized in that the conventional bladder or regulating tank (27) is the element that is physically independent from the pumping group and is directly fixed by welding onto the lower base of the backpack (1), preferably opposite said group, wherein the rod linking the manually actuated lever (2) with the piston (5) is a simple crosshead (4) moving said piston (5) in a casing (6) fitted with a unidirectional valve (16) to absorb the product from the interior of the backpack (1) and for propelling said product to the bladder (27) via a longitudinal conduit (21) located at the base of the backpack (1) itself. The product coming from the casing (6) circulates via said conduit as it comes down from the piston (5) and is then inserted into the bladder (27) through an orifice (28) after a unidirectional valve (29) has been retracted by the force of spring (30), the bladder (27) directly communicating with the wand for application of the product by means of an outlet conduit (31) ending in a connector (7) for fixing the hose of said wand.

Description

PULVERIZADOR DE PALANCA A PRESIÓN RETENIDA PARA PRODUCTOS FITOSANITARIOS PRESSURE LEVER SPRAYER FOR PHYTOSANITARY PRODUCTS
D E S C R I P C I Ó ND E S C R I P C I Ó N
OBJETO DE LA INVENCIÓNOBJECT OF THE INVENTION
La presente invención se refiere a un pulverizador para aplicación de productos fítosanitarios, de los que son accionables manualmente a través de una palanca de bombeo que genera la presión necesaria para la pulverización del producto, presuπzación que se lleva a cabo en el seno del pulmón alojado en el interior del propio depósito y en comunicación con la lanza de aplicación o verdadera pulverización del producto.The present invention relates to a sprayer for application of phytosanitary products, of which they are manually operable through a pumping lever that generates the pressure necessary for spraying the product, presuπzación that is carried out within the lodged lung inside the tank itself and in communication with the application lance or true product spraying.
El objeto de la invención se centra en una especial disposición y configuración de los componentes del pulverizador, que permite una sustancial simplificación en el proceso constructivo del mismo, con el consecuente abaratamiento de costes, y que facilita las operaciones de montaje y desmontaje del mismo, todo ello con una óptima funcionalidad desde el punto de vista operativo.The object of the invention focuses on a special arrangement and configuration of the sprayer components, which allows a substantial simplification in the construction process thereof, with the consequent cost reduction, and which facilitates the assembly and disassembly operations thereof, all with optimal functionality from an operational point of view.
ANTECEDENTES DE LA INVENCIÓN Los pulverizadores para aspersión de productos fítosamtarios , generalmente de uso en el ámbito agrícola, ofrecen diferentes versiones, una de las cuales es la de los pulverizadores portátiles de mochila, que constan de un depósito contenedor de líquido a pulverizar, provisto de aparejos a través de los cuales puede fijarse a la espalda del usuario, emergiendo de dicho depósito una manguera flexible rematada en una lanza destinada a la aplicación del producto y que cuenta con una válvula accionable manualmente para permitir o no la salida del producto, salida que, obviamente, se realiza a través de la correspondiente boquilla pulverizadora .BACKGROUND OF THE INVENTION Spraying sprayers of phytosamtary products, generally for use in agriculture, offer different versions, one of which is the portable backpack sprayers, which consist of a container container of liquid to be sprayed, equipped with rigs through which can be attached to the back of the user, emerging from said tank a flexible hose topped in a lance for the application of the product and that has a manually operated valve to allow or not the exit of the product, exit that, obviously, is performed through the corresponding spray nozzle.
Este tipo de pulverizadores incorporan una palanca que queda situada en uno de los costados de la mochila para ser accionada por el usuario con una mano, mientras que con la otra maneja la lanza, palanca que actúa sobre una bomba aspirante-impelente situada en el interior del depósito, para impulsar el fluido contenido en el mismo a través de la lanza.This type of sprayers incorporates a lever that is located on one of the sides of the backpack to be operated by the user with one hand, while with the other handles the spear, lever that acts on a suction-impellent pump located inside of the tank, to drive the fluid contained in it through the lance.
La bomba está constituida generalmente por un cilindro, fijado al depósito en la base, cilindro que está abierto superiormente para recibir el correspondiente pistón, mientras que inferiormente presenta unas aberturas u orificios que permiten el acceso del fluido contenido en el depósito al interior de una cámara definida entre el propio cilindro y el pistón, estableciéndose en la comunicación entre el depósito y la cámara la correspondiente válvula de aspiración.The pump is generally constituted by a cylinder, fixed to the tank in the base, cylinder that is open superiorly to receive the corresponding piston, while inferiorly it presents some openings or holes that allow access of the fluid contained in the tank to the inside of a chamber defined between the cylinder itself and the piston, establishing the corresponding suction valve in the communication between the tank and the chamber.
El pistón se materializa en un émbolo y un vastago hueco, en cuyo interior se aloja una conducción de salida de líquido hacia la lanza, incorporando dicho pistón una válvula de impulsión que abre y cierra el paso del líquido al interior del vastago hueco y, en consecuencia, el paso del líquido hacia la lanza. De esta manera el citado vastago hueco constituye además un depósito de regulación, a modo de pulmón, de tal manera que al accionar la palanca sube el pistón y la cámara de aspiración se llena con líquido procedente del depósito, mientras que el accionamiento de dicha palanca en sentido contrario provoca el descenso del pistón y el paso del líquido de la cámara de aspiración al pulmón o depósito de regulación. Realizando sucesivos movimientos de palanca se va bombeando líquido al interior del depósito regulador, líquido que tras cada bombeo se encuentra a una mayor presión en el interior del citado depósito, de tal manera que al actuar sobre la maneta de accionamiento de la lanza el líquido sale a presión y pulverizado a través de la boquilla.The piston is embodied in a piston and a hollow rod, inside which a liquid outlet line is housed towards the lance, said piston incorporating a discharge valve that opens and closes the passage of the liquid into the hollow rod and, in consequently, the passage of the liquid towards the lance. In this way, said hollow rod also constitutes a regulation tank, as a lung, in such a way that when the lever is actuated the piston rises and the suction chamber is filled with liquid from the tank, while the actuation of said lever in the opposite direction it causes the piston to descend and the passage of the liquid from the suction chamber to the lung or regulation tank. By carrying out successive lever movements, liquid is pumped into the regulator tank, a liquid that, after each pumping, is at a higher pressure inside said tank, in such a way that when acting on the handle of the lance, the liquid leaves under pressure and sprayed through the nozzle.
Pulverizadores de palanca del tipo descrito aparecen, por ejemplo, en la patente de invención española con número de solicitud 9001604, y en el modelo de utilidad también español con número de solicitud 8903741, de los que es titular el propio solicitante .Lever sprayers of the type described appear, for example, in the Spanish invention patent with application number 9001604, and in the utility model also Spanish with application number 8903741, of which the applicant himself is the owner.
Este tipo de pulverizadores, aun ofreciendo unas prestaciones adecuadas desde el punto de vista funcional, suponen una notable complejidad constructiva, que repercute negativamente en el coste del pulverizador, y presentan además problemas de montaje/desmontaje que dificultan las periódicas operaciones de limpieza, así como una eventual sustitución de alguno de los componentes.This type of sprayers, even offering adequate performance from the functional point of view, supposes a remarkable constructive complexity, which negatively affects the cost of the sprayer, and also presents assembly / disassembly problems that hinder periodic cleaning operations, as well as a possible replacement of any of the components.
DESCRIPCIÓN DE LA INVENCIÓNDESCRIPTION OF THE INVENTION
El pulverizador que la invención propone, perteneciendo al mismo tipo de pulverizadores a que se ha hecno mención en el párrafo anterior, resuelve de forma plenamente satisfactoria la problemática anteriormente expuesta, en los dos aspectos comentados .The sprayer that the invention proposes, belonging to the same type of sprayers mentioned in the previous paragraph, solves in a fully satisfactory manner the problem set forth above, in the two aspects mentioned.
Para ello, de forma más concreta y de acuerdo con una de las características de la invención, el pulverizador que se preconiza presenta su pulmón o depósito regulador físicamente independizado del pistón, lo que permite soldar, en una misma operación, la base de la mochila, la carcasa y el citado pulmón, permitiendo además utilizar un pistón estructuralmente mucho más sencillo y barato, puesto que el vastago del mismo puede materializarse en una simple cruceta.To do this, more specifically and in accordance with one of the characteristics of the invention, the sprayer that is proposed has its lung or regulator tank physically independent of the piston, which allows welding, in the same operation, the base of the backpack , the housing and the aforementioned lung, also allowing a structurally much simpler and cheaper piston to be used, since the rod thereof can materialize in a simple crosshead.
De acuerdo con otra de las características de la invención los mecanismos valvulares, tanto de aspiración como de impulsión, han sido también notablemente simplificados, permitiendo un montaje y desmontaje sumamente rápido y sencillo, a través de medios de acoplamiento tipo "clips".In accordance with another of the characteristics of the invention, the valve mechanisms, both suction and discharge, have also been remarkably simplified, allowing extremely fast and simple assembly and disassembly, through "clip" type coupling means.
De forma más concreta la camisa en la que juega el pistón incorpora en su base opuesta a este último un orificio de comunicación con el depósito, obturable mediante una tapeta establecida en el interior del cilindro, actuante como válvula antirretorno, que abre dicho orificio durante la fase de aspiración del pistón y que lo cierra automáticamente durante la fase de compresión, tapeta provista de un orificio central que comunica con otro orifico asimismo centrado sobre la base de la camisa y que se encuentra en permanente comunicación con un conducto que recorre la base de la mochila y que comunica con el pulmón o cámara de regulación, que como anteriormente se ha dicho es físicamente independiente del sistema de bombeo, que se fija por soldadura a la base de la mochila y que se encuentra directamente comunicado con el citado orificio inferior, el cual se remata en la clásica conexión para la lanza, con la particularidad de que en este orificio inferior se establece a su vez otra válvula antirretorno, que aisla el pulmón del grupo de bombeo durante la maniobra de aspiración de este último y que tiende permanentemente a la situación de cierre por efecto de un resorte.More specifically, the jacket in which the piston plays incorporates in its opposite base to the latter a communication hole with the reservoir, sealed by means of a flap established inside the cylinder, acting as a non-return valve, which opens said hole during the phase of aspiration of the piston and that closes it automatically during the compression phase, placket provided with a central hole that communicates with another hole also centered on the base of the jacket and that is in permanent communication with a conduit that runs through the base of the backpack and that communicates with the lung or regulation chamber, which as previously stated is physically independent of the pumping system, which is fixed by welding to the base of the backpack and that is directly connected to the said hole lower, which is finished off in the classic connection for the lance, with the particularity that in this lower hole another non-return valve is established, which isolates the lung from the pumping group during the suction maneuver of the latter and that It tends permanently to the closing situation due to the effect of a spring.
De acuerdo con otra de las características de la invención el conjunto constituido por el pistón y su correspondiente camisa, que atraviesa la base superior de la mochila con la colaboración de una junta de estanqueidad, se remata mferiormente en un cuello que atraviesa diametralmente el orificio inferior de la base de la mochila, comunicando con dicho orificio, e incorpora en su extremidad inferior y libre una pareja de alas flexibles, rematadas en arpones de enclavamiento, de manera que el citado conjunto de bombeo es fijable al fondo o base de la mochila, por simple "enchufamiento" hacia la situación límite de bloqueo de los citados arpones, los cuales resultan directamente accesibles desde el exterior para permitir también una fácil maniobra de desmontaje .According to another of the characteristics of the invention, the assembly constituted by the piston and its corresponding jacket, which crosses the upper base of the backpack with the collaboration of a seal, is topped off at a neck that diametrically crosses the lower hole of the base of the backpack, communicating with said hole, and incorporates in its lower and free end a pair of flexible wings, topped in interlocking harpoons, so that said pumping assembly is fixed to the bottom or base of the backpack, by simple "plugging" towards the limit situation of blocking of said harpoons, which are directly accessible from the outside to also allow an easy disassembly maneuver.
De acuerdo con otra de las características de la invención el conducto de salida en el que se establece la correspondiente conexión para la lanza, es igualmente enchufable de forma estanca en el seno del conducto inferior de la mochila, siendo portador de la válvula antirretorno y de resorte que tiende a la situación de cierre de la misma, conjunto que resulta igualmente acoplable por enchufamiento y fijable con la colaboración de un clip, que permite también un fácil montaje y desmontaje.According to another of the characteristics of the invention, the outlet duct in which the corresponding connection for the lance is established, is also pluggable in a sealed manner in the breast of the lower duct of the backpack, being carrier of the non-return valve and spring that tends to the situation of closing of the same, set that is equally attachable by plug and fixable with the collaboration of a clip, which also allows easy assembly and disassembly
Finalmente, de acuerdo con otra de las características de la invención y en la misma línea de simplicidad estructural que facilite el montaje y desmontaje de los componentes del pulverizador, se ha previsto que la palanca de accionamiento del mismo esté estructurada a base de un material ligero, como por ejemplo inyectada en plástico, dotada en su extremo de unión articulada al cuerpo de la mochila de dos orificios, uno para el e e de unión articulada al cuerpo de la mochila y otro para acoplamiento de la varilla de transmisión, con la particularidad de que dicha varilla presenta en su extremidad correspondiente un doble acodamiento ortogonal, determinante para dicho extremo de una configuración en "U" , capaz de acoplarse en el segundo orificio que define con la propia palanca una tapa convenientemente fijada a la misma, de manera que previamente al acoplamiento de dicha tapa la varilla puede ser acoplada lateralmente en la misma, a través de su extremo en "U" , y más concretamente a través de un orificio rasgado de dicha palanca, orificio rasgado que se convierte en un orificio circular tras la implantación de la tapa, de manera que esta última no sólo mejora el aspecto estético del conjunto sino que actúa como elemento de retención para la varilla, permitiendo la basculación de la misma pero imposibilitando su desmontaje, sin el desmontaje previo de la citada tapa.Finally, in accordance with another of the characteristics of the invention and in the same line of structural simplicity that facilitates the assembly and disassembly of the sprayer components, it is provided that the actuator lever thereof is structured based on a lightweight material , as for example injected in plastic, provided with its articulated end of connection to the body of the backpack with two holes, one for the ee of joint articulated to the body of the backpack and another for coupling of the transmission rod, with the particularity of that said rod has at its corresponding end a double orthogonal bending, determining for said end of a "U" configuration, capable of engaging in the second hole defining with the lever itself a cover conveniently fixed thereto, so that previously to the coupling of said cover the rod can be coupled laterally therein, through its "U" end, and more concretely also through a torn hole of said lever, torn hole that becomes a circular hole after the Implantation of the lid, so that the latter not only improves the aesthetic appearance of the assembly but also acts as a retention element for the rod, allowing it to be tilted but making it impossible to disassemble it, without the previous disassembly of said lid.
DESCRIPCIÓN DE LOS DIBUJOSDESCRIPTION OF THE DRAWINGS
Para complementar la descripción que se está realizando y con objeto de ayudar a una mejor comprensión de las características del invento, de acuerdo con un ejemplo preferente de realización práctica del mismo, se acompaña como parte integrante de dicha descripción, un juego de dibujos en donde con carácter ilustrativo y no limitativo, se ha representado lo siguiente:To complement the description that is being made and in order to help a better understanding of the characteristics of the invention, according to a preferred example of practical implementation thereof, a set of drawings is attached as an integral part of said description. In an illustrative and non-limiting manner, the following has been represented:
La figura 1.- Muestra un pulverizador de palanca a presión retenida para productos fítosanitarios realizado de acuerdo con el objeto de la presente invención, según una vista en alzado frontal en la que dicho pulverizador aparece mayontariamente seccionado para mostrar claramente su estructura interior.Figure 1 shows a retained pressure lever sprayer for phytosanitary products made in accordance with the object of the present invention, according to a front elevation view in which said sprayer appears mayonally sectioned to clearly show its interior structure.
La figura 2.- Muestra un perfil del pulverizador de la figura anterior, también seccionado .Figure 2.- Shows a profile of the sprayer of the previous figure, also sectioned
La figura 3.- Muestra un detalle ampliado de la figura 1, a nivel de la zona de acoplamiento del pistón a la base superior de la mochila.Figure 3.- Shows an enlarged detail of Figure 1, at the level of the piston coupling area to the upper base of the backpack.
La figura 4. - Muestra un detalle ampliado de la figura 1 a nivel de la zona de acoplamiento del grupo de bombeo a la base inferior de la mochila.Figure 4. - Shows an enlarged detail of Figure 1 at the level of the coupling area of the pumping group to the lower base of the backpack.
La figura 5.- Muestra otro detalle ampliado de la figura 1, en este caso a nivel del acoplamiento del pulmón o depósito regulador a la base inferior del cuerpo de la mochila.Figure 5.- Shows another enlarged detail of figure 1, in this case at the level of the coupling of the lung or regulating tank to the lower base of the body of the backpack.
La figura 6. - Muestra un despiece en perspectiva de la palanca de accionamiento del pulverizador y de la complementaria varilla de transmisión para accionamiento de la bomba.Figure 6. - Shows an exploded perspective view of the actuator lever of the sprayer and the complementary transmission rod for actuation of the pump.
La figura 7.- Muestra un detalle en alzado lateral del extremo de basculación de la citada palanca, en fase de acoplamiento de la complementaria varilla .Figure 7.- Shows a detail in side elevation of the tilting end of said lever, in the coupling phase of the complementary rod.
La figura 8.- Muestra un detalle en sección del conjunto representado en la figura anterior, según la línea de corte A - B de dicha figura.Figure 8.- Shows a sectional detail of the assembly represented in the previous figure, according to the cutting line A-B of said figure.
La figura 9.- Muestra, finalmente, una sección similar a la de la figura 8 en la que la varilla ha sido estabilizada en posición de trabajo mediante la implantación de la complementaria tapa.Figure 9.- Shows, finally, a section similar to that of figure 8 in which the rod has been stabilized in the working position by implanting the complementary cover.
REALIZACIÓN PREFERENTE DE LA INVENCIÓNPREFERRED EMBODIMENT OF THE INVENTION
A la vista de estas figuras puede observarse cómo el pulverizador que se preconiza, como cualquier pulverizador de palanca de este tipo, está estructurado a partir de un depósito (1), contenedor del producto fítosanitario a pulverizar, dotado de medios de acoplamiento a la espalda del usuario, no representados en las figuras, y dotado de un mecanismo de bombeo en el que participa una palanca (2) , montada basculantemente en un lateral del depósito o mochilaIn view of these figures it can be seen how the sprayer that is recommended, like any lever sprayer of this type, is structured from a tank (1), container of the phytosanitary product to be sprayed, provided with coupling means at the back of the user, not shown in the figures, and equipped with a pumping mechanism in which a lever (2), pivotally mounted on one side of the tank or backpack participates
(1) , y que a través de una varilla (3) transmite su movimiento alternativo de basculación a un vastago (4) que, atravesando la base superior de la mochila, se remata int riormente en un pistón (5) que juega en el seno de una camisa (6) , aspirando producto del depósito (1) e impulsándolo hacia la lanza, tampoco representada en los dibujos, que remata una manguera flexible convenientemente acoplada a un conector (7) , generalmente establecido en el lateral de la mochila (1) opuesto a la palanca de accionamiento (2) .(1), and that through a rod (3) transmits its alternative tilting movement to a rod (4) that, through the upper base of the backpack, is topped inside a piston (5) that plays in the breast of a shirt (6), sucking product from the tank (1) and propelling it towards the lance, also not represented in the drawings, which ends a flexible hose conveniently coupled to a connector (7), generally established on the side of the backpack ( 1) opposite the drive lever (2).
De acuerdo ya con la invención, el vastago (4) se materializa en una simple cruceta provista en su extremidad superior de una envolvente cilindrica y estanca (8), que juega en un cuello asimismo cilindrico (9), prolongación interna de la base superior de la mochila (1) , con interposición de una junta de estanqueidad (10) retenida por una tapa de cierre (11) , de manera que el citado vastago (4) resulta perfectamente guiado por su extremidad superior, atravesando de forma estanca la base superior de la mochila.In accordance with the invention, the rod (4) is embodied in a simple crosshead provided in its upper extremity of a cylindrical and sealed envelope (8), which plays on a cylindrical neck (9), internal extension of the upper base of the backpack (1), with interposition of a sealing gasket (10) retained by a closing lid (11), so that the aforementioned rod (4) is perfectly guided by its upper extremity, sealing the upper base of the backpack tightly.
Por su parte el pistón (5) que remata la extremidad inferior del vastago (4), incorpora un retén (12) , fijado al mismo con la colaboración de una tuerca (13) , estableciendo el citado retén (12) la adecuada estanqueidad para el pistón (5) en el seno de la camisa (6) , la cual presenta en su base inferior, a través de la que se adapta a la base inferior de la mochila, un orificio excéntrico (14) que, con la colaboración de un canal (15) del propio fondo de la mochila, establece comunicación con el depósito (1) , como se observa especialmente en el detalle de la figura 4, colaborando con este orificio (14) una tapeta (16) establecida en el fondo de la camisa (6) y dotada de un orificio axial (17) que queda enfrentado a otro orificio (18), cambien axial, del fondo de la camisa (6) , el cual se prolonga mferiormente en un cuello (19), interiormente cerrado, provisto de una abertura lateral (20) de comunicación con un orificio longitudinal (21) de la base inferior de la mochila, quedando dicho cuello (19) debidamente estanqueizado con la colaboración de dos juntas (22 - 22 ' ) situadas inmediatamente por encima y por debajo del orificio longitudinal (21), y prolongándose además el citado cuello (19) en una pareja de alas flexibles (23) rematadas en arponesOn the other hand, the piston (5) that ends the lower extremity of the rod (4), incorporates a retainer (12), fixed thereto with the collaboration of a nut (13), establishing said seal (12) adequate sealing for the piston (5) inside the jacket (6), which has an eccentric hole (14) that adapts to the lower base of the backpack, which, in collaboration with a channel (15) from the bottom of the backpack itself, establishes communication with the tank (1), as can be seen especially in the detail of figure 4, collaborating with this hole (14) a placket (16) established in the bottom of the jacket (6) and provided with an axial hole (17) facing another hole (18), change axially, from the bottom of the shirt (6), which extends inferiorly in a neck (19), internally closed , provided with a lateral opening (20) for communication with a longitudinal hole (21) of the lower base of the backpack, said neck (19) being properly sealed with the collaboration of two joints (22-22 ') located immediately above and below the longitudinal hole (21), and further extending said neck (19) in a pair of flexible wings (23) finished off in harpoons
(24) de enclavamiento a la embocadura de otro cuello(24) interlocking to the mouth of another neck
(25) , prolongación inferior del propio fondo de la mochila, quedando dichos arpones (24) debidamente protegidos en el seno de un faldón envolvente (26) , pero no obstante fácilmente accesibles para el desmontaje del grupo de bombeo, cuando esto sea necesario, de manera que el montaje y desmontaje de la camisa (6) , con el resto de los accesorios que participa en el citado grupo de bombeo, resulta sumamente rápido y sencillo.(25), lower extension of the bottom of the backpack itself, said harpoons (24) being duly protected within a wrapping skirt (26), but nevertheless easily accessible for disassembly of the pumping group, when necessary, so that the assembly and disassembly of the jacket (6), with the rest of the accessories that participates in the said pumping group, is extremely fast and simple.
El conducto (21) establecido en la base inferior de la mochila y que forma parte del cuerpo de la misma, establece comunicación entre el grupo de bombeo y el pulmón o depósito regulador (27) , que en el presente caso constituye el elemento físicamente independiente del grupo de bombeo, y que se fija a la base inferior o fondo de la mochila (1) preferentemente por soldadura, estableciéndose en dicha base una ventana (28) de comunicación entre dicho pulmón (27) y el conducto longitudinal (21) .The conduit (21) established in the lower base of the backpack and that is part of the body of the backpack, establishes communication between the pumping group and the lung or regulating tank (27), which in this case constitutes the physically independent element of the pumping group, and which is fixed to the bottom base or bottom of the backpack (1) preferably by welding, a communication window (28) being established on said base between said lung (27) and the longitudinal conduit (21).
En el conducto longitudinal (21] inmediatamente antes de entrar en comunicación con el pulmón (27) , se establece una válvula unidireccional (29) , asistida por un resorte (30) , que tiende a mantenerla permanentemente en situación de cierre, pero que no obstante permite su apertura cuando la presión en el interior de conducto (21) es superior a la presión existente en el pulmón (27) , estableciendo además dicha ventana (28) comunicación directa con la lanza a través de la conexión de salida (7) . De forma más concreta dicha conexión de salida (7) forma parte de un tubo (31), acoplable axialmente en la porción terminal del conducto longitudinal (21) del fondo de la carcasa y hermetizado con la colaboración de una junta de estanqueidad (32), siendo monopieza con este tubo (31) el resorte (30) de accionamiento de la válvula unidireccional (29) y la propia válvula (29), conjunto que resulta fácilmente acoplable y desacoplable en su alojamiento, por enchufamiento axial, estabilizándose en situación límite de trabajo con la colaboración de un clip (33) que colabora en la citada facilidad de maniobra.In the longitudinal duct (21] immediately before entering into communication with the lung (27), a unidirectional valve (29) is established, assisted by a spring (30), which tends to keep it permanently in a closed situation, but nevertheless allows its opening when the pressure inside the duct (21) it is higher than the pressure existing in the lung (27), said window (28) also establishing direct communication with the lance through the outlet connection (7). More specifically, said outlet connection (7) is part of a tube (31), axially attachable in the terminal portion of the longitudinal duct (21) of the bottom of the housing and sealed with the collaboration of a sealing gasket (32) , with this tube (31) being monopieza the spring (30) of operation of the unidirectional valve (29) and the valve itself (29), set that is easily attachable and detachable in its housing, by axial plugging, stabilizing in limit situation Working with the collaboration of a clip (33) that collaborates in the aforementioned ease of maneuver.
De acuerdo con esta estructuración, el funcionamiento del pulverizador es el siguiente:According to this structuring, the operation of the sprayer is as follows:
Al actuar manualmente sobre la palanca (2) , cuando el pistón (5) asciende, la válvula unidireccional (29) se encuentra cerrada, la tapetaWhen manually acting on the lever (2), when the piston (5) rises, the unidirectional valve (29) is closed, the flap
(16) bascula en sentido ascendente, separándose del orificio (14), y el producto fítosanitario contenido en el depósito (1) inunda la cámara definida en el seno de la camisa (6) . En el subsiguiente accionamiento en sentido contrario a la palanca (2) el pistón (5) desciende, la tapeta (16) cierra el orificio (14) y el producto contenido en la camisa (6) es impulsado a través del conducto longitudinal (21) hacia el pulmón (27), previa apertura de la válvula unidireccional (29) en contra del resorte (30) . Una acción repetida como la descrita supone una progresiva presurización del aire contenido en el pulmón (27) paralelamente a la carga con producto fítosanitario del pulmón, el cual empujará dicho producto a través del conducto de salida (31) y de la manguera acoplada al mismo, hacia la lanza que remata dicha manguera, produciéndose la verdadera pulverización cuando el operario actúa sobre la válvula manual de que está provista dicha lanza.(16) scales upwards, separating from hole (14), and the phytosanitary product contained in the tank (1) floods the defined chamber inside the jacket (6). In the subsequent drive in the opposite direction to the lever (2) the piston (5) descends, the flap (16) closes the hole (14) and the product contained in the jacket (6) is driven through the longitudinal conduit (21 ) towards the lung (27), after opening the unidirectional valve (29) against the spring (30). A repeated action such as that described supposes a progressive pressurization of the air contained in the lung (27) parallel to the load with phytosanitary product of the lung, which will push said product through the outlet duct (31) and the hose attached to it , towards the lance that ends said hose, the true spraying occurring when the operator acts on the manual valve that said lance is provided with.
De acuerdo con otra de las características de la invención la palanca (2) se materializa en una pieza de plástico, de longitud apropiada, que en el extremo opuesto a su empuñadura (34) , es decir en el extremo de acoplamiento al depósito (1), incorpora un orificio cilindrico (35), para implantación del eje de basculación de dicha palanca (2), y adecuadamente distanciado del mismo un segundo orificio en el que se establecen dos sectores lateralmente adyacentes, en correspondencia con las respectivas caras de la palanca, un sector externo (36) de configuración cilindrica y un sector interno (37) de configuración rasgada, que se extiende radialmente desde el imaginario eje pasante por el centro del orificio o alojamiento cilindrico (36), estando el citado orificio o sector rasgado (37) destinado a permitir el paso a su través de la extremidad correspondiente de la varilla (3) , la cual adopta una configuración en "U" , de manera que su rama media (38) es de amplitud suficiente como para que su rama lateral y libre (39) pueda acceder al sector o alojamiento cilindrico (36) , mientras que dicha rama lateral (39) es de longitud adecuada como para que la varilla (3) pueda bascular en el seno de dicho alojamiento (36), cuando su rama media (38) adopta la disposición axial a la que se ha hecho mención con anterioridad.According to another of the features of the invention, the lever (2) is embodied in a piece of plastic, of appropriate length, which at the opposite end of its handle (34), that is to say at the end of coupling to the tank (1 ), incorporates a cylindrical hole (35), for implantation of the tilting axis of said lever (2), and suitably distanced from it a second hole in which two laterally adjacent sectors are established, in correspondence with the respective faces of the lever, an external sector (36) of cylindrical configuration and an internal sector (37) of torn configuration, which extends radially from the imaginary through axis through the center of the hole or cylindrical housing (36), said hole being or torn sector (37) intended to allow passage through the corresponding end of the rod (3), which adopts a "U" configuration, so that its middle branch (38) is of sufficient amplitude so that its branch lateral and free (39) can access the sector or cylindrical housing (36), while said lateral branch (39) is of adequate length so that the rod (3) can swing inside said housing (36), when its middle branch (38) adopts the axial arrangement mentioned above.
Esta disposición axial, tras el montaje de la varilla (3) , se consigue con la colaboración de una tapa (40) materializada en un disco que obtura la embocadura del alojamiento (36) y que está provista de una expansión (41), paralela a su imaginario eje, rematada en un bloque prismático (42), capacitado para obturar el citado orificio rasgado (37) de la palanca (2) , dejando libre un pequeño espacio que, conjuntamente con la extremidad correspondiente a dicho orificio rasgado (37), determinan un alojamiento cilindrico para basculación de la rama media (38) de la varilla (3) . De esta manera la palanca (2) resulta fácilmente obtenible en una operación de moldeo por inyección, sobre la misma resulta fácilmente montable la varilla de transmisión (3) , que queda bloqueada en situación de trabajo con la colaboración de la tapa (40) , obtenible de manera análoga a la propia palanca (2), y permitiendo igualmente un fácil desmontaje de estos elementos, cuando sea necesario.This axial arrangement, after mounting the rod (3), is achieved with the collaboration of a cover (40) materialized in a disc that seals the mouth of the housing (36) and is provided with an expansion (41), parallel to its imaginary axis, finished off in a prismatic block (42), capable of sealing the said torn hole (37) of the lever (2), leaving a small space free which, together with the end corresponding to said torn hole (37) , determine a cylindrical housing for tilting the middle branch (38) of the rod (3). In this way the lever (2) results easily obtainable in an injection molding operation, it is easily mounted on the transmission rod (3), which is locked in a working situation with the collaboration of the cover (40), obtainable analogously to the lever itself ( 2), and also allowing easy disassembly of these elements, when necessary.
De la estructuración descrita se derivan, además de una plena eficacia operativa, una gran simplicidad estructural, que permite un fácil montaje y desmontaje de los componentes del pulverizador, tanto en tareas de mantenimiento para la limpieza de dichos componentes, como ante la eventual necesidad de sustitución de alguno de ellos. In addition to full operational efficiency, a great structural simplicity derives from the described structure, which allows for easy assembly and disassembly of the sprayer components, both in maintenance tasks for the cleaning of said components, and in the event of the need for Replacement of any of them.

Claims

R E I V I N D I C A C I O N E SR E I V I N D I C A C I O N E S
1 a . -Pulverizador de palanca a presión retenida para productos fítosanitaπos , del tipo de los que incorporan un depósito contenedor del producto, que configura una especie de mochila dotada de medios de acoplamiento a la espalda del usuario, provista de un grupo de bombeo materializado en un vastago con su correspondiente pistón, que juega en el interior de una camisa y cuyo pistón es accionado alternativamente por una palanca manual exterior, generando el paso de dicho producto a un pulmón o depósito regulador donde el mismo es presurizado para su impulsión, a través de una manguera flexible, hasta una lanza de accionamiento manual rematada en una válvula también accionada manualmente que permite la salida del producto a través de una boquilla pulveπzadora, caracterizado porque el citado pulmón o depósito regulador (27) constituye un elemento físicamente independiente del pistón (6) perteneciente al grupo de bombeo, situándose preferentemente en la zona opuesta de la base de la mochila (1) a la de implantación de dicho grupo de bombeo y fijándose por soldadura a la base de la mochila en la propia operación de fijación de dicha base a la carcasa que complementa dicha mochila, a la vez que el vastago (4) asociado al pistón (5) se materializa en una simple cruceta o similar que relaciona el pistón (5) con un sector extremo superior y cilindrico (8) que juega1 a . -Pressurized pressure lever sprayer for phytosanitaπos products, of the type that incorporate a container container of the product, which configures a kind of backpack equipped with coupling means to the user's back, provided with a pumping group materialized in a rod with its corresponding piston, which plays inside a jacket and whose piston is alternately actuated by an external manual lever, generating the passage of said product to a lung or regulating tank where it is pressurized for its impulsion, through a flexible hose, up to a manually operated lance finished off in a valve also operated manually that allows the product to exit through a spray nozzle, characterized in that said lung or regulating tank (27) constitutes a physically independent element of the piston (6) belonging to the pumping group, preferably located in the opposite area of the b ase of the backpack (1) to the implantation of said pumping group and being fixed by welding to the base of the backpack in the operation of fixing said base to the housing that complements said backpack, at the same time as the rod ( 4) associated with the piston (5) is materialized in a simple crosshead or similar that relates the piston (5) with a top and cylindrical end sector (8) that plays
HOJA DE SUSTITUCIÓN (REGLA 26) estancamente en un orificio de la base superior de la mochila (1) .SUBSTITUTE SHEET (RULE 26) tightly in a hole in the top base of the backpack (1).
2a.- Pulverizador de palanca a presión retenida para productos fitosanitarios , según reivindicación 10, caracterizado porque el sector cilindrico (8) que remata superiormente el vastago (4) del pistón (5), juega en un cuello cilindrico (9) prolongación interna de la base superior de la mochila (1) y está asistido por una junta de estanqueidad (10) , axialmente retenida con la colaboración de una tapa (11) .2 .- sprayer lever to hold pressure for plant protection products, according to claim 10, characterized in that the cylindrical sector (8) which superiorly tops stem (4) of the piston (5), plays a cylindrical neck (9) internal extension of the upper base of the backpack (1) and is assisted by a seal (10), axially retained with the collaboration of a cover (11).
3a.- Pulverizador de palanca a presión retenida para productos fitosanitarios, según reivindicación 10, caracterizado porque la camisa (6) en cuyo seno juega el pistón (5) estanqueizado con la colaboración de un retén (12) , incorpora en su base inferior un orificio (14), acusadamente excéntrico, de comunicación con el interior del depósito (1) , sobre el que actúa una válvula materializada en una tapeta (16) , provista a su vez de un orificio central3 .- sprayer lever to hold pressure for plant protection products, according to claim 10, characterized in that the sleeve (6) within which plays the piston (5) sealed with the collaboration of a detent (12), incorporates in its lower base a hole (14), markedly eccentric, of communication with the interior of the tank (1), on which a valve materialized in a flap (16) acts, provided in turn with a central hole
(17) que comunica con otro orificio asimismo central(17) that communicates with another central hole
(18) de la propia camisa (6) , el cual se prolonga inferiormente en un cuello (19) provisto de una abertura lateral (20) de comunicación con un conducto longitudinal (21) establecido en la base inferior de la mochila (1) , estando el citado cuello (19) asistido por una pareja de juntas de estanqueidad (22 - 22') que hermetizan el acoplamiento de la camisa (6) al(18) of the shirt itself (6), which extends inferiorly in a neck (19) provided with a lateral opening (20) of communication with a longitudinal conduit (21) established in the lower base of the backpack (1) , said neck (19) being assisted by a pair of gaskets (22 - 22 ') that seal the coupling of the jacket (6) to the
HOJA DE SUSTITUCIÓN (REGLA 26) citado conducto longitudinal e inferior (21) .SUBSTITUTE SHEET (RULE 26) cited longitudinal and lower duct (21).
4a.- Pulverizador de palanca a presión retenida para productos fitosanitarios, según reivindicación 30, caracterizado el cuello inferior4 .- Spray pressure lever retained PPP, according to claim 30, characterized in the lower neck
(19) de la camisa (6) se prolonga, por debajo del tubo longitudinal (21), en una pareja de alas flexibles(19) of the jacket (6) extends, below the longitudinal tube (21), in a pair of flexible wings
(23), rematadas en sendos arpones (24) de acoplamiento a presión, por simple enchufamiento, en el seno de un cuello inferior (25) de la propia base inferior de la mochila, resultando dichos arpones (24) directamente accesibles para su desmontaje, y estando protegidos por un faldón envolvente (26) .(23), finished off in individual harpoons (24) of pressure coupling, by simple plugging, into a lower neck (25) of the lower base of the backpack itself, being said harpoons (24) directly accessible for disassembly , and being protected by an enveloping skirt (26).
5a.- Pulverizador de palanca a presión retenida para productos fitosanitarios , según reivindicaciones 10 y 30, caracterizado porque el conducto longitudinal (21) establecido en la base inferior de la mochila (1) , comunica a través de una ventana (28) con el pulmón (27) , previa implantación de una válvula unidireccional (29) , asistida por un resorte (30), válvula cuya apertura se produce cuando la presión en el conducto longitudinal (21) es superior a la presión en el seno del pulmón (27) , el cual está también en directa comunicación, a través de la citada ventana (28) , con el conector extremo (7) al que se fija la manguera de comunicación con la lanza pulverizadora .5 .- Spray pressure lever retained PPP, according to claims 10 and 30, characterized in that the longitudinal duct (21) established in the lower base of the rucksack (1), communicates through a window (28) the lung (27), after implantation of a unidirectional valve (29), assisted by a spring (30), whose opening occurs when the pressure in the longitudinal duct (21) is greater than the pressure inside the lung ( 27), which is also in direct communication, through said window (28), with the end connector (7) to which the communication hose with the spray lance is fixed.
HOJA DE SUSTITUCIÓN (REGLA 26) 6a.- Pulverizador de palanca a presión retenida para productos fitosanitarios , según reivindicación 50, caracterizado porque el citado conector (7) remata la extremidad externa de un tubo de salida (31) , acoplado coaxialmente en la extremidad correspondiente del conducto longitudinal (21) , hermetizado con respecto al mismo con la colaboración de una junta (32) , axialmente fijable mediante un clipSUBSTITUTE SHEET (RULE 26) 6 .- sprayer lever to hold pressure for plant protection products, according to claim 50, wherein the connector mentioned (7) hits the outer end of an outlet tube (31) coaxially coupled in the corresponding end of the longitudinal passage (21 ), sealed with respect to it with the collaboration of a joint (32), axially fixed by means of a clip
(33) y cuyo tubo (31) se prolonga interiormente, con carácter monopieza, en el resorte (30) que asiste a la válvula unidireccional (29) , y en la propia válvula unidireccional (29) .(33) and whose tube (31) extends internally, as a single piece, on the spring (30) that assists the unidirectional valve (29), and on the unidirectional valve itself (29).
7a.- Pulverizador de palanca a presión retenida para productos fitosanitarios, según reivindicación 10, caracterizado porque la palanca (2) se materializa en una pieza, preferentemente inyectada en material plástico, dotada en su extremidad de unión articulada al cuerpo (1) de la mochila, de un orificio (35) para el eje de basculación de la misma, y en las proximidades de dicho orificio, concretamente en la zona de recepción de la varilla de transmisión (3), un segundo orificio en el que se establece un sector exterior (36), determinante de un alojamiento cilindrico, y un sector interior (37) , determinante de un orificio rasgado, que emerge radialmente del imaginario eje correspondiente al primer sector, mientras que la citada varilla de transmisión (3) adopta en la extremidad correspondiente una7 .- sprayer lever to hold pressure for plant protection products, according to claim 10, wherein the lever (2) is embodied in one piece, preferably injected in plastic material, provided at its extremity articulated joint to the body (1) the backpack, of a hole (35) for the axis of tilting thereof, and in the vicinity of said hole, specifically in the reception area of the transmission rod (3), a second hole in which a outer sector (36), determinant of a cylindrical housing, and an inner sector (37), determinant of a torn hole, which emerges radially from the imaginary axis corresponding to the first sector, while said transmission rod (3) adopts in the corresponding limb one
HOJA DE SUSTITUCIÓN (REGLA 26) configuración en "U" , de manera que su rama lateral y libre (39) es susceptible de pasar a través del orificio rasgado (37) y su rama media (38) es a su vez de magnitud adecuada para que en situación de montaje la rama lateral (39) se sitúe en el alojamiento cilindrico (36), complementándose este conjunto con una tapa (40) que cierra la embocadura del alojamiento (36) y que estrangula sustancialmente, a través de un bloque interior (42), al citado orificio rasgado (37), inmovilizando la varilla (3) con respecto a la palancaSUBSTITUTE SHEET (RULE 26) "U" configuration, so that its lateral and free branch (39) is capable of passing through the torn hole (37) and its middle branch (38) is in turn of adequate magnitude so that in a situation of assembly the lateral branch (39) is located in the cylindrical housing (36), this assembly being complemented with a cover (40) that closes the mouth of the housing (36) and substantially throttles, through an inner block (42), to said torn hole (37), immobilizing the rod (3) with respect to the lever
(2) en sentido longitudinal, y permitiendo tan sólo el movimiento de basculación relativo entre estos elementos al definir un orificio cilindrico de diámetro acorde con el de la varilla (3) en el extremo interno del orificio rasgado (37) .(2) in the longitudinal direction, and allowing only the relative tilting movement between these elements when defining a cylindrical bore of diameter according to that of the rod (3) at the inner end of the torn hole (37).
¡HOJA DE SUSTITUCIÓN (REGLA 26) SUBSTITUTE SHEET (RULE 26)
PCT/ES1999/000313 1999-10-01 1999-10-01 Retained-pressure lever sprayer for phitosanitary products WO2001024629A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/ES1999/000313 WO2001024629A1 (en) 1999-10-01 1999-10-01 Retained-pressure lever sprayer for phitosanitary products
AU62039/99A AU6203999A (en) 1999-10-01 1999-10-01 Retained-pressure lever sprayer for phitosanitary products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES1999/000313 WO2001024629A1 (en) 1999-10-01 1999-10-01 Retained-pressure lever sprayer for phitosanitary products

Publications (1)

Publication Number Publication Date
WO2001024629A1 true WO2001024629A1 (en) 2001-04-12

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ID=8307344

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Application Number Title Priority Date Filing Date
PCT/ES1999/000313 WO2001024629A1 (en) 1999-10-01 1999-10-01 Retained-pressure lever sprayer for phitosanitary products

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AU (1) AU6203999A (en)
WO (1) WO2001024629A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2385968A1 (en) * 2012-03-06 2012-08-06 Goizper, S. Coop. Fluid applicator with dosing capacity (Machine-translation by Google Translate, not legally binding)
CN104472095A (en) * 2014-12-22 2015-04-01 湖南省烟草公司湘西自治州公司 Pesticide/fertilizer applying device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR811687A (en) * 1936-01-03 1937-04-20 Garnier Ets Backpack sprayer
FR875778A (en) * 1940-11-23 1942-10-02 Joseph Vaux & Cie Ets Agricultural backpack sprayer
FR1431069A (en) * 1965-01-22 1966-03-11 P Perras Ets Human backpack sprayer training
ES198909U (en) * 1973-12-18 1975-07-16 Riquelme Ballesteros Luis A pulverizing device of backpack, of manual operation. (Machine-translation by Google Translate, not legally binding)
US5671884A (en) * 1995-07-31 1997-09-30 D.B. Smith & Co., Inc. Backpack sprayer with an expandable accumulator chamber

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR811687A (en) * 1936-01-03 1937-04-20 Garnier Ets Backpack sprayer
FR875778A (en) * 1940-11-23 1942-10-02 Joseph Vaux & Cie Ets Agricultural backpack sprayer
FR1431069A (en) * 1965-01-22 1966-03-11 P Perras Ets Human backpack sprayer training
ES198909U (en) * 1973-12-18 1975-07-16 Riquelme Ballesteros Luis A pulverizing device of backpack, of manual operation. (Machine-translation by Google Translate, not legally binding)
US5671884A (en) * 1995-07-31 1997-09-30 D.B. Smith & Co., Inc. Backpack sprayer with an expandable accumulator chamber

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2385968A1 (en) * 2012-03-06 2012-08-06 Goizper, S. Coop. Fluid applicator with dosing capacity (Machine-translation by Google Translate, not legally binding)
CN104472095A (en) * 2014-12-22 2015-04-01 湖南省烟草公司湘西自治州公司 Pesticide/fertilizer applying device

Also Published As

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