EP0016839B1 - Sprayer used in both standing and over turning attitudes - Google Patents

Sprayer used in both standing and over turning attitudes Download PDF

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Publication number
EP0016839B1
EP0016839B1 EP79900637A EP79900637A EP0016839B1 EP 0016839 B1 EP0016839 B1 EP 0016839B1 EP 79900637 A EP79900637 A EP 79900637A EP 79900637 A EP79900637 A EP 79900637A EP 0016839 B1 EP0016839 B1 EP 0016839B1
Authority
EP
European Patent Office
Prior art keywords
valve
suction
cylinder
pressurizing chamber
sprayer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP79900637A
Other languages
German (de)
French (fr)
Other versions
EP0016839A1 (en
EP0016839A4 (en
Inventor
Takao Kishi
Minoru Hinokiyama
Takamitsu Nozawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yoshino Kogyosho Co Ltd
Original Assignee
Yoshino Kogyosho Co Ltd
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
Priority claimed from JP7774678U external-priority patent/JPS61127Y2/ja
Priority claimed from JP1978153522U external-priority patent/JPS61899Y2/ja
Priority claimed from JP16478178U external-priority patent/JPS6026840Y2/en
Application filed by Yoshino Kogyosho Co Ltd filed Critical Yoshino Kogyosho Co Ltd
Publication of EP0016839A4 publication Critical patent/EP0016839A4/en
Publication of EP0016839A1 publication Critical patent/EP0016839A1/en
Application granted granted Critical
Publication of EP0016839B1 publication Critical patent/EP0016839B1/en
Expired legal-status Critical Current

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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
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0059—Components or details allowing operation in any orientation, e.g. for discharge in inverted position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7879—Resilient material valve
    • Y10T137/7888—With valve member flexing about securement
    • Y10T137/7889—Sleeve

Definitions

  • the present invention relates to a sprayer which can be used both in an upright position and in an inverted position and capable of absolutely preventing any penetration of air into a pressurization chamber, in each of these two positions.
  • Sprayers have been known to date comprising two suction pipes connected to the suction opening of a pump and leading respectively to the neck, and to the lower part of a container containing a liquid, such arrangement allowing the sprayer to be used both upright and inverted.
  • the neck of the container containing the liquid must have a diameter large enough for two suction hoses to be threaded through it.
  • the diameter of the neck is small, it is not possible to hold the sprayer stably through the center of this neck and, due to this lack of stability of the sprayer, the operations for spraying the liquid are find it embarrassed.
  • the switching valve for connecting the suction passage to one or the other of the two suction hoses is mounted apart from its hoses, which annoyingly limits the space available for a liquid in the container.
  • the applicant has experimentally produced a sprayer which can be used both in the upright position and in the inverted position, in which the suction opening intended for operation in the inverted position is located at the top of the pump cylinder. .
  • the liquid is sucked in through the suction opening for operation in the inverted position, only when the piston has been perfectly put back in place to give the pressurizing chamber the largest possible volume, such so that it is necessary to provide a pump whose resistance is sufficient to withstand a high vacuum.
  • it is difficult to introduce by suction a fairly large amount of liquid into the pressurization chamber.
  • FR-A-2318685 describes a sprayer of this type, comprising a suction passage for operation in the inverted position and a shut-off valve (44, 37, 37a, 42, 40) housed in this passage d suction and designed to open only when the pressure prevailing in said pressurizing chamber has dropped to a value less than a given value in the case of the operation of this sprayer in the inverted position.
  • Japanese patent S310113 (Yoshino) describes a sprayer usable in an upright position and in an inverted position comprising a pump (4-piston cylinder) surrounded by a sleeve (20) forming with the cylinder (4) suction channels (25) for operation in the reverse position.
  • a shut-off valve (27) is housed between these channels (25) and the pumping chamber and is designed to open only when the sprayer is operating in the inverted position.
  • This shut-off valve (27) is a valve for preventing air intake when operating in the upright position.
  • the sprayer further comprises a suction valve for operation in the upright position and an air suction prohibition valve (37, 35) for operation in the inverted position.
  • the subject of the invention is a sprayer which can be used both in the upright position and in the inverted position, and in which the air suction prohibition valve for operation in the upright position is also used as a suction valve for the operating in the inverted position, this suction valve being actuated only by a vacuum in the pressurization chamber, which must be greater than the vacuum which actuates the suction valve by operating in the upright position.
  • the invention also relates, for operation in the inverted position, to a suction passage constituted by an outer sleeve disposed around the pump cylinder, which reduces the outside diameter of the upper part of this cylinder and makes it possible to arrange the pump. in the center of the container neck.
  • a pump 2 is fixed to the neck of a container 1 intended to contain liquid.
  • a spray head 3 is disposed above this pump 2. This head 3 is provided with a nozzle and it is attached to the upper end of a plunger 5 which acts both as a piston for the pump 2 and passage for the liquid.
  • This pump 2 comprises a pressurization chamber 7, delimited by this plunger 5 and by an associated cylinder 6.
  • This cylinder plunges into the container 1 and, at its upper end, it is detachably connected to the mouth of this container 1 by means of a screwed sleeve 8.
  • a helical spring 9 having the role of urging the plunger upwards is housed in the cylinder 6.
  • This plunger 5 is introduced into the cylinder 6 by the upper side of this last to dominate the force of the spring 9 and it can slide in this cylinder.
  • the cylinder 6 is provided with a suction valve 10, while an exhaust valve (not shown) is housed in the upper part of the plunger 5.
  • a small sleeve 11 is formed in one piece with the lower end of cylinder 6.
  • various types of valve can be used as the suction valve capable of closing and opening the passage both in the upright position and in the inverted position, for example a ball valve, or a tongue valve. It is possible, if desired, to place the suction valve 10 at the top of the cylinder 6, although, in the embodiment shown, this suction valve is located at the bottom of this cylinder.
  • valve body 13 of cylindrical shape, made of an elastic material, for example of soft plastic or soft rubber, this valve body being housed in the small sleeve 11.
  • the assembly constituted by the valve body 13 and through holes or bores, 1'2 forms a stop valve 13A.
  • the cylindrical body 1'3 of the valve has a lower base. There is a flange, or flange, 13a directed inwards, intended to prevent the valve body 13 from deforming in line with the lower base.
  • the cylindrical body 13 plugs the holes 12, which prevents any suction of air by a suction passage which will be discussed more specifically, intended for operation in the inverted position.
  • a sleeve 14 is mounted around the cylinder 6.
  • a suction passage 15 used in the case of operation in the inverted position, this passage being in the form of a groove which goes from the upper part of the container 1 to transverse hole or bore 12 of the small sleeve 11.
  • the sleeve 14 has a lower part 14a, of cylindrical shape and of reduced diameter relative to the upper part of the sleeve 14.
  • the lower end of the cylinder 6 extends, towards the bottom, by a small cylinder 11, of diameter reduced by relative to the diameter of the cylinder 6.
  • the small cylinder 11 is housed inside the cylinder 14a.
  • the lower end of the small sleeve 11 constitutes a valve seat 16, of frustoconical shape, flared downwards.
  • E 17a is introduced into a cylindrical part 14a on the lower side of this frustoconical valve seat, so as to constitute a valve 17 intended to prohibit the suction of air during operation in the inverted position.
  • Several grooves 18a are formed in the outer peripheral face of this cup 18.
  • a suction pipe 19 which goes to the lower part of the container 1 intended to contain a liquid, is arranged at the lower end of the cylindrical element lower 14a.
  • valve seat 16a of frustoconical shape by giving a flared shape to the lower end of the cylindrical body 13 (FIG. 1B) instead of providing a frustoconical seat 16 at the lower end of the small sleeve 11.
  • the suction valve 10 therefore opens, which allows the suction of liquid by the suction pipe 19, by the grooves t8a and by the cylindrical body 13 of the valve.
  • the ball 17a is not in abutment against the seat 16 of frustoconical shape, since this ball is applied, under the effect of its weight, against the part 18 in the form of a cup, such so that the liquid flows through the outer peripheral grooves 18a of this part 18.
  • the vacuum obtained inside the cylindrical body 13 of the valve is a little deeper than outside of this same body.
  • the transverse hole or bore 12 is never released by the cylindrical body 13, contrary to what happens in the case of operation. in the inverted position, which will be described later, so that air cannot enter the chamber 7 for pressurization.
  • the liquid contained in the chamber 7 is subjected to a pressure which closes the suction valve 10 when the spray head 3 is pressed. If we continue pressing this 3, a high pressure arises in the chamber 7, so that the exhaust valve opens forcefully and the liquid is sprayed by the nozzle 4. This exhaust valve closes automatically when the chamber pressure drops, and spraying ends.
  • a suction valve 10 intended to operate. in the upright position, a valve 13A of cylindrical shape which acts as an air suction prohibition valve and aspiration valve used respectively for operation in the upright position and for operation in the inverted position, and finally a air suction prohibition valve 17, for operation in the inverted position so that, for these two positions, the air is absolutely prevented from entering the pressure chamber 7 and that only the liquid is sucked.
  • the suction valve 10, the cylindrical valve body 13 and the interdict valve 17 air intake allowing the sprayer to spray both upright and inverted, are arranged end to end and located in the lower part of the pump 2, so that they never decrease the space for the liquid in the container.
  • the cylindrical body 1'3, the sleeve 14 and a valve 7 for preventing air suction are added to an ordinary type sprayer, the latter can also operate in the inverted position.
  • the suction passage 15 intended for operation in the inverted position is constituted by a sleeve 14 surrounding the cylinder 6 of the pump 2. It is therefore not necessary to give a large diameter to the upper part of this pump.
  • the cylindrical body 13 which constitutes the shut-off valve 13A of the first embodiment is located on the outer periphery of the small sleeve 1'1 of the cylinder 6. If one refers to FIG. 2A , it can be seen that the central step 21a of the cylindrical body 21 of the valve is held in contact with the shoulder 22a of the internal surface of the sleeve 22 which surrounds the cylinder 6, so as to secure the cylindrical body 21 inside this muff. Then, the cylindrical element 21 is placed around the cylinder 6 by the lower side of the latter.
  • a passage for the liquid is formed in the inner face of the cylindrical body 21 and outside the small sleeve 11 of the cylinder.
  • several ribs 23 formed on the inner peripheral surface of the sleeve 22 at suitable intervals are provided on the cylinder 6 to secure the sleeve 22 to the pump 2.
  • Suction passages 24, used for operation in the inverted position, are alternated with the ribs 23 and they communicate with the pressurization chamber 7 through the lower chamber of the small sleeve 11.
  • the cylindrical body 21 of the valve is fixed, by its upper part, to the inner peripheral surface of the sleeve 22, while the lower part of this body 21 constitutes a tilting part 21, applied strongly against the small sleeve 11 of the cylinder 6, of absolutely airtight.
  • the air suction prohibition valve 17 of the first embodiment is constituted as follows in the second embodiment: the part 18 in the form of a cup of the first embodiment no longer exists in this second embodiment, and there is provided an element 25 for the support of the ball 17a, at the lower part 14a of the sleeve 22.
  • the seat 17b of the ball 17a is located at the top of this lower part 14a.
  • this second embodiment provides the same advantages as the first.
  • the tilting part 21b of the cylindrical body 21 of the valve is provided so as to bend downward, at its end, in order to open the suction passage 24, only when there is practically a vacuum in the pressurization chamber 7, during operation in the inverted position.
  • FIGS 2B and 2C show a variant of the cylindrical body 21 of the second embodiment.
  • a cylindrical valve body 27 is fixed to the small sleeve 11 of the cylinder 6 and there is provided, on the lower periphery of this cylindrical body 27, a tilting part 27a which is applied in leaktight manner against the peripheral surface inside of the sleeve 22.
  • several ribs 27b are provided on the periphery of the upper part of the cylindrical valve body 27, so as to form liquid passages between the cylindrical body 27 and the sleeve 22. The latter is provided internally of ribs 28 intended to reinforce its coupling to the small sleeve 11.
  • FIG. 2D represents another variant of the cylindrical element 27 of the second embodiment.
  • the tilting part 27a of the cylindrical element 27 shown in FIG. 2B is in the form of a tilting part 29 directed laterally, serving to ensure tight contact, on its beam, with the inner peripheral wall of the sleeve 22.
  • a third embodiment of the invention will be described below, referring to FIG. 3.
  • the cylindrical body 13 of the valve of the first embodiment is located on the periphery of the upper part of the cylinder 6.
  • the cylindrical body 31 of this new embodiment has a base fixed to the peripheral part upper part of the cylinder 6 of the pump 2.
  • the lower part of the cylindrical body 31 forms a skirt 31 a which spreads outwards, and the end of this skirt is in sealed contact with the inner peripheral surface of the sleeve 22.
  • the other parts of the sprayer according to this third embodiment are identical to those of the second embodiment, and, like the sprayer of the first embodiment, this new atomizer can ensure a safe suction of liquid into the pressurization chamber, while preventing the penetration of air into this chamber, both in the upright position and in the overturned.
  • FIG. 4 represents a fourth embodiment of the invention, according to which the cylindrical body 21 used in the second embodiment is interposed between the small sleeve 11 of the cylinder 6 and an intermediate lower support element, located in the sleeve 22 , on a part of the latter located above the valve seat 17b.
  • the cylindrical valve body 42 of this new embodiment has a base attached to the lower intermediate support part 41, while an upper part 42a of the body, intended to seal, is housed in the small sleeve 11 .
  • the pressurization chamber 7 is in communication with the suction passage 24, in the case of operation in the inverted position, when this sealing part 42a deforms inwards.
  • this part 42a does not deform, the liquid suction pipe which leaves from the sleeve 22 downwards is in communication with the pressurization chamber 7 by means of the central hole, or bore, of the cylindrical body of valve 42.
  • FIG. 5 shows a fifth embodiment, according to which the cylindrical valve body 42 used in the fourth embodiment is held in the small sleeve 11 of the cylinder 6.
  • the cylindrical valve body 51 has an upper base fixed firmly to the inside of the small sleeve 11, while a lower skirt 51a of this cylindrical body ensures tight contact with the inner peripheral valve of a sleeve 52.
  • This is intended to carry the cylinder 6 and it has the same diameter outside over its entire length.
  • the suction passage 53 intended for operation in the inverted position exists only on one side of the upper part of the sleeve 52.
  • the other parts of the sprayer according to this fifth embodiment are identical to those of the second embodiment.
  • the pressurization chamber 7 communicates with a passage 53 for operation in the inverted position, when the skirt 51 a deforms inward.
  • This sprayer can therefore, like that of the first embodiment, suck liquid into its pressurization chamber, while preventing the penetration of air into this chamber, both in the upright position and in the inverted position, and it thus provides the same advantages as that of the first embodiment.

Abstract

A sprayer which may securely check air flow into a pressure chamber (7) of a pumping mechanism (2) so as to intake only liquid at any one of standing and overturning attitudes. According to this invention, a conventional pumping mechanism (2) is provided with an overturning-intake passage (15) which is opened at one end thereof to the pressure chamber (7) and at the other end to the external top of the pumping mechanism (2). The overturning-intake passage (15) has an on-off control valve (13A) which may be opened when the pressure in chamber (7) becomes higher than predetermined negative pressure at its overturning attitude.

Description

La présente invention concerne un pulvérisateur utilisable aussi bien en position droite qu'en position renversée et capable d'empêcher absolument toute pénétration d'air dans une chambre de mise sous pression, en chacune de ces deux positions.The present invention relates to a sprayer which can be used both in an upright position and in an inverted position and capable of absolutely preventing any penetration of air into a pressurization chamber, in each of these two positions.

On connaissait, jusqu'à ce jour, des pulvérisateurs comportant deux tuyaux d'aspiration reliés à l'ouverture d'aspiration d'une pompe et conduisant respectivement au goulot, et à la partie inférieure d'un récipient contenant un liquide, une telle disposition permettant au pulvérisateur de servir aussi bien en position droite qu'en position renversée. Dans un pulvérisateur d'un tel type, le goulot du récipient contenant le liquide doit avoir un diamètre assez grand pour que l'on puisse y enfiler deux tuyaux d'aspiration. De plus, si le diamètre du goulot est faible, il n'est pas possible de maintenir de façon stable le pulvérisateur par le centre de ce goulot et, en raison même de ce manque de stabilité du pulvérisateur, les opérations de pulvérisation du liquide se trouvent gênées.Sprayers have been known to date comprising two suction pipes connected to the suction opening of a pump and leading respectively to the neck, and to the lower part of a container containing a liquid, such arrangement allowing the sprayer to be used both upright and inverted. In a sprayer of this type, the neck of the container containing the liquid must have a diameter large enough for two suction hoses to be threaded through it. In addition, if the diameter of the neck is small, it is not possible to hold the sprayer stably through the center of this neck and, due to this lack of stability of the sprayer, the operations for spraying the liquid are find it embarrassed.

Dans un pulvérisateur de ce type, la soupape de commutation permettant de brancher le passage d'aspiration sur l'un ou l'autre des deux tuyaux d'aspiration est monté à part de ses tuyaux, ce qui limite fâcheusement l'espace disponible pour un liquide dans le récipient.In a sprayer of this type, the switching valve for connecting the suction passage to one or the other of the two suction hoses is mounted apart from its hoses, which annoyingly limits the space available for a liquid in the container.

Le demandeur a réalisé, de façon expérimentale, un pulvérisateur pouvant servir aussi bien en position droite qu'en position renversée, dans lequel l'ouverture d'spiration prévue pour le fonctionnement en position renversée se trouve à la partie supérieure du cylindre de la pompe. Dans ce cas, le liquide est aspiré par l'ouverture d'aspiration pour le fonctionnement en position renversée, seulement lorsque le piston a été parfaitement remis en place pour donner à la chambre de mise sous pression le volume le plus grand possible, de telle sorte qu'il est nécessaire de prévoir une pompe dont la résistance est suffisante pour supporter un vide poussé. De plus, avec une telle disposition, il est difficile d'introduire par aspiration une quantité assez importante de liquide dans la chambre de mise sous pression.The applicant has experimentally produced a sprayer which can be used both in the upright position and in the inverted position, in which the suction opening intended for operation in the inverted position is located at the top of the pump cylinder. . In this case, the liquid is sucked in through the suction opening for operation in the inverted position, only when the piston has been perfectly put back in place to give the pressurizing chamber the largest possible volume, such so that it is necessary to provide a pump whose resistance is sufficient to withstand a high vacuum. In addition, with such an arrangement, it is difficult to introduce by suction a fairly large amount of liquid into the pressurization chamber.

Par ailleurs, le FR-A-2318685 décrit un pulvérisateur de ce type, comprenant un passage d'aspiration pour le fonctionnement en position renversée et une soupape d'arrêt (44, 37, 37a, 42, 40) logée dans ce passage d'aspiration et conçue pour ne s'ouvrir que lorsque la pression qui règne dans ladite chambre de mise sous pression est descendue à une valeur inférieure à une valeur donnée dans le cas du fonctionnement de ce polvérisateur en position renversée.Furthermore, FR-A-2318685 describes a sprayer of this type, comprising a suction passage for operation in the inverted position and a shut-off valve (44, 37, 37a, 42, 40) housed in this passage d suction and designed to open only when the pressure prevailing in said pressurizing chamber has dropped to a value less than a given value in the case of the operation of this sprayer in the inverted position.

Le brevet japonais S310113 (Yoshino) décrit un pulvérisateur utilisable en position droite et en position renversée comportant une pompe (cylindre 4-piston) entourée par un manchon (20) formant avec le cylindre (4) des canaux (25) d'aspiration pour le fonctionnement en position renversée. Une soupape d'arrêt (27) est logée entre ces canaux (25) et la chambre de pompage et elle est conçue pour ne s'ouvrir que dans le cas du fonctionnement de ce pulvérisateur en position renversée. Cette soupape d'arrêt (27) est une soupape d'interdiction d'aspiration d'air dans le cas du fonctionnement en position droite. Le pulvérisateur comporte en outre une soupape d'aspiration pour le fonctionnement en position droite et une soupape d'interdiction d'aspiration d'air (37, 35) pour le fonctionnement en position renversée.Japanese patent S310113 (Yoshino) describes a sprayer usable in an upright position and in an inverted position comprising a pump (4-piston cylinder) surrounded by a sleeve (20) forming with the cylinder (4) suction channels (25) for operation in the reverse position. A shut-off valve (27) is housed between these channels (25) and the pumping chamber and is designed to open only when the sprayer is operating in the inverted position. This shut-off valve (27) is a valve for preventing air intake when operating in the upright position. The sprayer further comprises a suction valve for operation in the upright position and an air suction prohibition valve (37, 35) for operation in the inverted position.

L'invention a pour objet un pulvérisateur utilisable aussi bien en position droite qu'en position renversée, et dans lequel la soupape d'interdiction d'aspiration d'air pour le fonctionnement en position droite est utilisée également comme soupape d'aspiration pour le fonctionnement en position renversée, cette soupape d'aspiration étant actionnée seulement par une dépression, dans la chambre de mise sous pression, qui doit être plus grande que la dépression qui actionne la soupape d'aspiration par le fonctionnement en position droite.The subject of the invention is a sprayer which can be used both in the upright position and in the inverted position, and in which the air suction prohibition valve for operation in the upright position is also used as a suction valve for the operating in the inverted position, this suction valve being actuated only by a vacuum in the pressurization chamber, which must be greater than the vacuum which actuates the suction valve by operating in the upright position.

Plus précisément, le pulvérisateur de l'invention se caractérise en ce qu'il comporte:

  • - une deuxième soupape d'aspiration ménagée dans le second passage d'aspiration, ce second passage d'aspiration étant formé par un manchon ajusté autour du cylindre de la pompe, de telle sorte que la deuxième soupape d'aspiration soit adapté à empêcher l'air de pénétrer à l'intérieur de ladite chambre de mise sous pression lorsque le pulvérisateur est en position droite, et s'ouvre lorsque ledit pulvérisateur est en position renversée sous l'action d'une dépression qui règne dans la chambre de mise sous pression et qui est plus grande que la dépression actionnant la première soupape d'aspiration pour le fonctionnement en position droite, et
  • - une soupape d'interdiction d'aspiration d'air, prévue pour le fonctionnement en position renversée du pulvérisateur, et disposée dans le premier passage d'aspiration, de telle manière qu'elle empêche l'air de pénétrer dans ladite chambre de mise sous pression lorsque le pulvérisateur est en position renversée.
More precisely, the sprayer of the invention is characterized in that it comprises:
  • - A second suction valve formed in the second suction passage, this second suction passage being formed by a sleeve fitted around the pump cylinder, so that the second suction valve is adapted to prevent the air penetrating inside said pressurization chamber when the sprayer is in the upright position, and opens when said sprayer is in the inverted position under the action of a vacuum prevailing in the pressurization chamber pressure and which is greater than the vacuum actuating the first suction valve for operation in the upright position, and
  • - an air suction prohibition valve, intended for operation in the inverted position of the sprayer, and arranged in the first suction passage, in such a way that it prevents air from entering said setting chamber under pressure when the sprayer is in the inverted position.

Conformément à l'invention, on évite de donner au pulvérisateur des dimensions trop grandes, afin de ne pas réduire l'espace disponible pour du liquide dans le récipient.According to the invention, it is avoided to give the sprayer too large dimensions, so as not to reduce the space available for liquid in the container.

L'invention vise également, pour le fonctionnement en position renversée, un passage d'aspiration constitué par un manchon extérieur disposé autour du cylindre de la pompe, ce qui diminue le diamètre extérieur de la partie supérieure de ce cylindre et permet de disposer la pompe au centre du goulot du récipient.The invention also relates, for operation in the inverted position, to a suction passage constituted by an outer sleeve disposed around the pump cylinder, which reduces the outside diameter of the upper part of this cylinder and makes it possible to arrange the pump. in the center of the container neck.

D'autres caractéristiques et avantages de l'invention ressortiront mieux de la description qui va suivre, faite en regard des dessins annexés, donnant à titre explicatif mais nullement limitatif, plusieurs formes de réalisation.Other characteristics and advantages of the invention will emerge more clearly from the description which follows, given with reference to the appended drawings, giving by way of explanation but in no way limiting, several embodiments.

Sur ces dessins:

  • - la figure 1A est une coupe verticale d'un pulvérisateur utilisable aussi bien en position droite qu'en position renversée, ce pulvérisateur constituant une première forme de réalisation de l'invention.
  • - la figure 1B est une coupe faite dans une partie importante de ce pulvérisateur, montrant en particulier une variante de la soupape d'arrêt disposée dans le passage d'aspiration de liquide, utilisée dans le cas du fonctionnement en position renversée.
  • - la figure 2A est une coupe verticale d'une seconde forme de réalisation du pulvérisateur selon l'invention;
  • - les figures 2B et 2C sont respectivement une coupe et une vue en perspective d'une partie importante de cette seconde forme de réalisation du pulvérisateur, ces vues représentant en particulier une variante de la soupape d'arrêt logée dans le passage d'aspiration, et servant au fonctionnement en position renversée.
  • - la figure 2D est une vue en coupe d'une partie importante d'une autre variante de la soupape d'arrêt;
  • - la figure 3 est une coupe verticale d'une troisième forme de réalisation du pulvérisateur selon l'invention.
  • - les figures 4 et "5 sont des coupes verticales, respectivement d'une quatrième et d'une cinquième formes de réalisation du pulvérisateur selon l'invention.
In these drawings:
  • - Figure 1A is a vertical section of a sprayer usable both in the upright position and in the inverted position, this sprayer constituting a first embodiment of the invention.
  • - Figure 1B is a section through a large part of this sprayer, showing in particular a variant of the shut-off valve arranged in the liquid suction passage, used in the case of operation in the inverted position.
  • - Figure 2A is a vertical section of a second embodiment of the sprayer according to the invention;
  • FIGS. 2B and 2C are respectively a section and a perspective view of a large part of this second embodiment of the sprayer, these views representing in particular a variant of the stop valve housed in the suction passage, and used for operation in the reverse position.
  • - Figure 2D is a sectional view of a large part of another variant of the stop valve;
  • - Figure 3 is a vertical section of a third embodiment of the sprayer according to the invention.
  • - Figures 4 and "5 are vertical sections, respectively of a fourth and a fifth embodiment of the sprayer according to the invention.

Dans la première forme de réalisation du pulvérisateur selon l'invention (figures 1A et 1B) une pompe 2 est fixée au goulot d'un récipient 1 destiné à contenir du liquide. Une tête de pulvérisation 3 est disposée au-dessus de cette pompe 2. Cette tête 3 est munie d'une buse et elle est attachée à l'extrémité supérieure d'un plongeur 5 qui joue à la fois le rôle de piston pour la pompe 2 et de passage pour le liquide.In the first embodiment of the sprayer according to the invention (FIGS. 1A and 1B) a pump 2 is fixed to the neck of a container 1 intended to contain liquid. A spray head 3 is disposed above this pump 2. This head 3 is provided with a nozzle and it is attached to the upper end of a plunger 5 which acts both as a piston for the pump 2 and passage for the liquid.

Cette pompe 2 comporte une chambre 7 de mise sous pression, délimitée par ce plongeur 5 et par un cylindre associé 6. Ce cylindre plonge dans le récipient 1 et, à son extrémité supérieure, il est relié de façon amovible à l'embouchure de ce récipient 1 au moyen d'un manchon vissé 8. De plus, un ressort hélicoïdal 9 ayant pour rôle de solliciter le plongeur vers le haut est logé dans le cylindre 6. Ce plongeur 5 est introduit dans le cylindre 6 par le côté supérieur de ce dernier pour dominer la force du ressort 9 et il peut coulisser dans ce cylindre. A sa partie inférieure, le cylindre 6 est muni d'une soupape d'aspiration 10, tandis qu'une soupape d'échappement (non représentée) est logée dans la partie supérieure du plongeur 5. En outre, un petit manchon 11 est formé d'un seul tenant avec l'extrémité inférieure du cylindre 6.This pump 2 comprises a pressurization chamber 7, delimited by this plunger 5 and by an associated cylinder 6. This cylinder plunges into the container 1 and, at its upper end, it is detachably connected to the mouth of this container 1 by means of a screwed sleeve 8. In addition, a helical spring 9 having the role of urging the plunger upwards is housed in the cylinder 6. This plunger 5 is introduced into the cylinder 6 by the upper side of this last to dominate the force of the spring 9 and it can slide in this cylinder. At its lower part, the cylinder 6 is provided with a suction valve 10, while an exhaust valve (not shown) is housed in the upper part of the plunger 5. In addition, a small sleeve 11 is formed in one piece with the lower end of cylinder 6.

Grâce à une telle disposition, on peut, en appuyant sur la tête de pulvérisation 3, mettre sous pression le liquide contenu dans la chambre 7 de façon à ouvrir à force la soupape d'échappement et à pulvériser le liquide par la buse 4. Un tel montage est connu et a déjà été utilisé.By virtue of such an arrangement, it is possible, by pressing on the spraying head 3, to pressurize the liquid contained in the chamber 7 so as to force open the exhaust valve and to spray the liquid through the nozzle 4. A such an arrangement is known and has already been used.

Si l'on ne tient pas compte de la pression interne, on peut utiliser, comme soupape d'aspiration, divers types de soupapes capables de fermer et d'ouvrir le passage aussi bien en position droite qu'en position renversée, par exemple une soupape à bille, ou une soupape en languette. On peut, si on le désire, placer la soupape d'aspiration 10 à la partie supérieure du cylindre 6, bien que, dans la forme de réalisation représentée, cette soupape d'aspiration soit située à la partie inférieure de ce cylindre.If the internal pressure is not taken into account, various types of valve can be used as the suction valve capable of closing and opening the passage both in the upright position and in the inverted position, for example a ball valve, or a tongue valve. It is possible, if desired, to place the suction valve 10 at the top of the cylinder 6, although, in the embodiment shown, this suction valve is located at the bottom of this cylinder.

Plusieurs trous, ou alésages, transversaux 12 sont perçés dans la partie intermédiaire du petit manchon 1'1. Ces trous sont destinés à coopérer avec un corps de soupape 13 de forme cylindrique, en un matériau élastique, par exemple en matière plastique molle ou en caoutchouc mou, ce corps de soupape étant logé dans le petit manchon 11. L'ensemble constitué par le corps de soupape 13 et par les trous ou alésages, 1'2 forme une soupape d'arrêt 13A. Le corps cylindrique 1'3 de la soupape présente une base inférieure. Il est prévu un rebord, ou bride, 13a dirigé vers l'intérieur, destiné à empêcher le corps de soupape 13 de se déformer au droit de la base inférieure.Several holes, or bores, transverse 12 are drilled in the intermediate part of the small sleeve 1'1. These holes are intended to cooperate with a valve body 13 of cylindrical shape, made of an elastic material, for example of soft plastic or soft rubber, this valve body being housed in the small sleeve 11. The assembly constituted by the valve body 13 and through holes or bores, 1'2 forms a stop valve 13A. The cylindrical body 1'3 of the valve has a lower base. There is a flange, or flange, 13a directed inwards, intended to prevent the valve body 13 from deforming in line with the lower base.

Lorsque le pulvérisateur fonctionne en position droite, le corps cylindrique 13 bouche les trous 12, ce qui empêche toute aspiration d'air par un passage d'aspiration dont il sera question plus foin, destiné au fonctionnement en position renversée.When the sprayer operates in an upright position, the cylindrical body 13 plugs the holes 12, which prevents any suction of air by a suction passage which will be discussed more specifically, intended for operation in the inverted position.

Au contraire, lorsque le pulvérisateur fonctionne en position renversée, la bille 17a d'une soupape 17 dont il sera question plus loin, destinée à empêcher l'aspiration d'air, est appliquée fortement contre le siège de soupape 16 de forme tronconique.On the contrary, when the sprayer operates in the inverted position, the ball 17a of a valve 17 which will be discussed below, intended to prevent the suction of air, is applied strongly against the valve seat 16 of frustoconical shape.

Par suite, lorsque le vide qui règne dans la chambre de mise sous pression est poussé au-delà d'une valeur donnée, la partie supérieure du corps cylindrique 13 de soupape est rabattue vers l'intérieur de manière à dégager le trou transversal 1'2.Consequently, when the vacuum prevailing in the pressurizing chamber is pushed beyond a given value, the upper part of the cylindrical body 13 of the valve is folded inwards so as to release the transverse hole 1 ' 2.

Un manchon 14 est monté autour du cylindre 6.A sleeve 14 is mounted around the cylinder 6.

Dans la face intérieure de ce manchon 14 est pratiqué un passage d'aspiration 15, utilisée dans le cas du fonctionnement en position renversée, ce passage se présentant sous la forme d'une rainure qui va de la partie supérieure du récipient 1 jusqu'au trou, ou alésage, transversal 12 du petit manchon 11. Le manchon 14 présente une partie inférieure 14a, de forme cylindrique et de diamètre réduit par rapport à la partie supérieure du manchon 14. L'extrémité inférieure du cylindre 6 se prolonge, vers le bas, par un petit cylindre 11, de diamètre réduit par rapport au diamètre du cylindre 6. Le petit cylindre 11 est logé à l'intérieur du cylindre 14a. L'extrémité inférieure du petit manchon 11 constitue un siège de soupape 16, de forme tronconique, évasé vers le bas. Une bil!e 17a est introduite dans une partie cylindrique 14a du côté inférieur de ce siège de soupape tronconique, de façon à constituer une soupape 17 destinée à interdire l'aspiration d'air au cours du fonctionnement en position renversée. Une pièce 18 en forme de godet, située dans la partie inférieure cylindrique 14a, empêche cette bille 17a de tomber. Plusieurs rainures 18a sont pratiquées dans la face périphérique extérieure de ce godet 18. Un tuyau d'aspiration 19 qui va jusqu'à la partie inférieure du récipient 1 destiné à contenir un liquide, est disposé à l'extrémité inférieure de l'élément cylindrique inférieur 14a. Par suite, lorsque la pression à l'intérieur de la chambre de mise sous pression 7 est à peu près nulle, dans le cas d'utilisation du pulvérisateur en positon droite, le liquide s'écoule dans cette chambre 7 par le tuyau d'aspiration 19, par la rainure 18a, par le corps cylindrique 13 de la soupape et par la soupape d'aspiration 10. Dans ce cas, la bille 17a n'est pas appliquée fermement contre le siège tronconique de soupape 16, étant donné que le liquide s'écoule à l'extérieur de la pièce 18 en forme de godet.In the inner face of this sleeve 14 is practiced a suction passage 15, used in the case of operation in the inverted position, this passage being in the form of a groove which goes from the upper part of the container 1 to transverse hole or bore 12 of the small sleeve 11. The sleeve 14 has a lower part 14a, of cylindrical shape and of reduced diameter relative to the upper part of the sleeve 14. The lower end of the cylinder 6 extends, towards the bottom, by a small cylinder 11, of diameter reduced by relative to the diameter of the cylinder 6. The small cylinder 11 is housed inside the cylinder 14a. The lower end of the small sleeve 11 constitutes a valve seat 16, of frustoconical shape, flared downwards. A bil! E 17a is introduced into a cylindrical part 14a on the lower side of this frustoconical valve seat, so as to constitute a valve 17 intended to prohibit the suction of air during operation in the inverted position. A cup-shaped part 18, located in the cylindrical lower part 14a, prevents this ball 17a from falling. Several grooves 18a are formed in the outer peripheral face of this cup 18. A suction pipe 19 which goes to the lower part of the container 1 intended to contain a liquid, is arranged at the lower end of the cylindrical element lower 14a. As a result, when the pressure inside the pressurizing chamber 7 is almost zero, in the case of using the sprayer in the right position, the liquid flows into this chamber 7 through the suction 19, by the groove 18a, by the cylindrical body 13 of the valve and by the suction valve 10. In this case, the ball 17a is not applied firmly against the frustoconical seat of the valve 16, since the liquid flows out of the part 18 in the form of a cup.

Il est possible d'obtenir un siège de soupape 16a de forme tronconique en donnant une forme évasée à l'extrémité inférieure du corps cylindrique 13 (figure 1B) au lieu de prévoir un siège tronconique 16 à l'extrémité inférieure du petit manchon 11.It is possible to obtain a valve seat 16a of frustoconical shape by giving a flared shape to the lower end of the cylindrical body 13 (FIG. 1B) instead of providing a frustoconical seat 16 at the lower end of the small sleeve 11.

Le fonctionnement du pulvérisateur tel que décrit ci-dessus, pouvant être utilisé aussi bien en position droite qu'en position renversée, est le suivant.The operation of the sprayer as described above, which can be used both in the upright position and in the inverted position, is as follows.

Lorsque l'on appuie sur la tête de pulvérisation 3, le pulvérisateur étant en position droite, le plongeur 5 de la pompe 2 descend. Du fait que la soupape d'aspiration 10 est fermée, le liquide contenu dans la chambre 7 est mis sous pression, de sorte qu'il est envoyé, par l'intermédiaire de la soupape d'échappement (non représentée), dans la buse 4 pour être pulvérisé par cette dernière. La soupape d'échappement se ferme automatiquement lorsque la pression qui règne dans la chambre de mise sous pression baisse, ce qui met fin à la pulvérisation.When the spray head 3 is pressed, the sprayer being in the upright position, the plunger 5 of the pump 2 descends. As the suction valve 10 is closed, the liquid contained in the chamber 7 is pressurized, so that it is sent, via the exhaust valve (not shown), into the nozzle 4 to be sprayed by the latter. The exhaust valve closes automatically when the pressure in the pressurizing chamber drops, which stops spraying.

Puis, lorsque l'on relâche la tête de pulvérisation 3, cette dernière et le plongeur 5 sont soulevés par le ressort 9 ce qui fait baisser la pression dans la chambre 7 pratiquement jusqu'à un vide relatif. La soupape d'aspiration 10 s'ouvre donc, ce qui permet l'aspiration de liquide par le tuyau d'aspiration 19, par les rainures t8a et par le corps cylindrique 13 de la soupape.Then, when the spray head 3 is released, the latter and the plunger 5 are lifted by the spring 9 which lowers the pressure in the chamber 7 practically to a relative vacuum. The suction valve 10 therefore opens, which allows the suction of liquid by the suction pipe 19, by the grooves t8a and by the cylindrical body 13 of the valve.

Au cours de cette aspiration, la bille 17a n'est pas en butée contre le siège 16 de forme tronconique, étant donné que cette bille est appliquée, sous l'effet de son poids, contre la pièce 18 en forme de godet, de telle sorte que le liquide s'écoule par les rainures périphériques extérieures 18a de cette pièce 18. Le vide obtenu à l'intérieuer du corps cylindrique 13 de la soupape est un peu plus poussé qu'à l'extérieur de ce même corps. Mais, du fait que la soupape 17 d'interdiction d'aspiration d'air demeure ouverte, le trou, ou alésage, transversal 12 n'est jamais dégagé par le corps cylindrique 13, contrairement à ce qui se passe dans le cas du fonctionnement en position renversée, que l'on décrira plus loin, de telle sorte que l'air ne peut pas pénétrer dans la chambre 7 de mise sous pression.During this aspiration, the ball 17a is not in abutment against the seat 16 of frustoconical shape, since this ball is applied, under the effect of its weight, against the part 18 in the form of a cup, such so that the liquid flows through the outer peripheral grooves 18a of this part 18. The vacuum obtained inside the cylindrical body 13 of the valve is a little deeper than outside of this same body. However, due to the fact that the valve 17 for preventing air suction remains open, the transverse hole or bore 12 is never released by the cylindrical body 13, contrary to what happens in the case of operation. in the inverted position, which will be described later, so that air cannot enter the chamber 7 for pressurization.

'Dans le cas d'un fonctionnement en position renversée, le liquide contenu dans la chambre 7 est soumis à une pression ce qui ferme la soupape d'aspiration 10 lorsque l'on appuie sur la tête de pulvérisation 3. Si l'on continue d'appuyer sur cette 3, une pression élévée prend naissance dans la chambre 7, de telle sorte que la soupape d'échappement s'ouvre à force et que le liquide est pulvérisé par la buse 4. Cette soupape d'échappement se ferme automatiquement lorsque la pression de la chambre baisse, et la pulvérisation prend fin.In the case of operation in the inverted position, the liquid contained in the chamber 7 is subjected to a pressure which closes the suction valve 10 when the spray head 3 is pressed. If we continue pressing this 3, a high pressure arises in the chamber 7, so that the exhaust valve opens forcefully and the liquid is sprayed by the nozzle 4. This exhaust valve closes automatically when the chamber pressure drops, and spraying ends.

Lorsque l'on relàche la tête de pulvérisation 3, le plongeur 5 est ramené à sa position initiale sous l'action du ressort 9. Mais, la bille 17a de la soupape 17 d'interdiction d'aspiration d'air vient buter contre le siège de soupape 16, de forme tronconique, sous l'action de son poids. De plus, la soupape d'aspiration 10 s'ouvre. Par conséquent, il règne un vide total dans la chambre 7 et dans le corps cylindrique 13 de la soupape, de telle sorte que ce corps cylindrique dégage le trou transversal 12, ce qui permet au liquide de pénétrer dans la chambre 7 de mise sous pression par le passage d'aspiration 15 du fonctionnement en position renversée et par le trou transversal 12. Etant donné que la soupape 17 d'interdiction d'aspiration d'air demeure fermée, il ne peut pas pénétrer d'air par aspiration dans la chambre 7 par le tuyau d'aspiration 19, bien que, dans ce cas, ce dernier soit à l'air libre. Si ensuite, on appuie sur la tête 3, il se produit une pulvérisation comme décrit plus haut.When the spray head 3 is released, the plunger 5 is returned to its initial position under the action of the spring 9. However, the ball 17a of the valve 17 for preventing air suction stops against the valve seat 16, of frustoconical shape, under the action of its weight. In addition, the suction valve 10 opens. Consequently, there is a total vacuum in the chamber 7 and in the cylindrical body 13 of the valve, so that this cylindrical body releases the transverse hole 12, which allows the liquid to enter the pressurization chamber 7 by the suction passage 15 of the operation in the inverted position and by the transverse hole 12. Since the valve 17 for preventing air suction remains closed, it cannot penetrate air by suction into the chamber 7 by the suction pipe 19, although, in this case, the latter is in the open air. If then, the head 3 is pressed, a spraying occurs as described above.

Comme on l'a dit précédemment, dans le pulvérisateur utilisable aussi bien en position droite qu'en position renversée conforme à l'invention, il est prévu, à la partie inférieure de la pompe 2, une soupape d'aspiration 10 destinée à fonctionner en position droite, une soupape 13A de forme cylindrique qui joue le rôle de soupape d'interdiction d'aspiration d'air et de soupape d'aspiration utilisées respectivement pour le fonctionnement en position droite et pour le fonctionnement en position renversée, et enfin une soupape d'interdiction d'aspiration d'air 17, pour le fonctionnement en position renversée de telle sorte que, pour ces deux positions, l'air se trouve absolument empêché de pénétrer dans la chambre 7 de mise sous pression et que seul le liquide est aspiré.As mentioned above, in the sprayer which can be used both in an upright position and in an inverted position in accordance with the invention, there is provided, at the bottom of the pump 2, a suction valve 10 intended to operate. in the upright position, a valve 13A of cylindrical shape which acts as an air suction prohibition valve and aspiration valve used respectively for operation in the upright position and for operation in the inverted position, and finally a air suction prohibition valve 17, for operation in the inverted position so that, for these two positions, the air is absolutely prevented from entering the pressure chamber 7 and that only the liquid is sucked.

La soupape d'aspiration 10, le corps cylindrique de soupape 13 et la soupape 17 d'interdiction d'aspiration d'air permettant au pulvérisateur d'effectuer des pulvérisations aussi bien en position droite qu'en position renversée, sont disposés bout à bout et située dans la partie inférieure de la pompe 2, de sorte qu'ils ne diminuent jamais l'espace destiné au liquide dans le récipient. De plus, si l'on ajoute le corps cylindrique 1'3, le manchon 14 et une soupape 7 d'interdiction d'aspiration d'air à un pulvérisateur de type ordinaire, ce dernier peut fonctionner également en position renversée.The suction valve 10, the cylindrical valve body 13 and the interdict valve 17 air intake allowing the sprayer to spray both upright and inverted, are arranged end to end and located in the lower part of the pump 2, so that they never decrease the space for the liquid in the container. In addition, if the cylindrical body 1'3, the sleeve 14 and a valve 7 for preventing air suction are added to an ordinary type sprayer, the latter can also operate in the inverted position.

Le passage d'aspiration 15 destiné au fonctionnement en position renversée est constitué par un manchon 14 entourant le cylindre 6 de la pompe 2. Il n'est donc pas nécessaire de donner un grand diamètre à la partie supérieure de cette pompe.The suction passage 15 intended for operation in the inverted position is constituted by a sleeve 14 surrounding the cylinder 6 of the pump 2. It is therefore not necessary to give a large diameter to the upper part of this pump.

On peut donc facilement attacher la pompe 2 au goulot du récipient et maintenir cette pompe stable au centre de ce goulot, même lorsque ce dernier a un diamètre faible.It is therefore easy to attach the pump 2 to the neck of the container and to keep this pump stable in the center of this neck, even when the latter has a small diameter.

On décrira ci-après une seconde forme de réalisation de l'invention, en ce reportant aux figures 2A à 2D. Dans cette forme de réalisation, le corps cylindrique 13 qui constitue la soupape d'arrêt 13A de la première forme de réalisation est situé sur le pourtour extérieur du petit manchon 1'1 du cylindre 6. Si l'on se rapporte à la figure 2A, on voit que le gradin central 21a du corps cylindrique 21 de soupape est maintenu au contact de l'épaulement 22a de la surface intérieure du manchon 22 qui entoure le cylindre 6, de manière à assujettir le corps cylindrique 21 à l'intérieur de ce manchon. Puis, on dispose l'élément cylindrique 21 autour du cylindre 6 par le côté inférieur de ce dernier. Une fois cet élément cylindrique monté, il se forme un passage pour le liquide dans la face intérieure du corps cylindrique 21 et en dehors du petit manchon 11 du cylindre. De plus, plusieurs nervures 23 pratiquées sur la surface périphérique intérieure du manchon 22 à intervalles convenables, sont prévus sur le cylindre 6 pour assujettir le manchon 22 à la pompe 2. Des passages d'aspiration 24, servant au fonctionnement en position renversée, sont alternés avec les nervures 23 et ils communiquent avec la chambre 7 de mise sous pression par la chambre inférieure du petit manchon 11.A second embodiment of the invention will be described below, with reference to FIGS. 2A to 2D. In this embodiment, the cylindrical body 13 which constitutes the shut-off valve 13A of the first embodiment is located on the outer periphery of the small sleeve 1'1 of the cylinder 6. If one refers to FIG. 2A , it can be seen that the central step 21a of the cylindrical body 21 of the valve is held in contact with the shoulder 22a of the internal surface of the sleeve 22 which surrounds the cylinder 6, so as to secure the cylindrical body 21 inside this muff. Then, the cylindrical element 21 is placed around the cylinder 6 by the lower side of the latter. Once this cylindrical element is mounted, a passage for the liquid is formed in the inner face of the cylindrical body 21 and outside the small sleeve 11 of the cylinder. In addition, several ribs 23 formed on the inner peripheral surface of the sleeve 22 at suitable intervals are provided on the cylinder 6 to secure the sleeve 22 to the pump 2. Suction passages 24, used for operation in the inverted position, are alternated with the ribs 23 and they communicate with the pressurization chamber 7 through the lower chamber of the small sleeve 11.

Le corps cylindrique 21 de soupape est fixé, par sa partie supérieure, à la surface périphérique intérieure du manchon 22, tandis que la parti inférieure de ce corps 21 constitue une partie 21 basculante, appliquée fortement contre le petit manchon 11 du cylindre 6, de façon absolument étanche à l'air. En outre, la soupape 17 d'interdiction d'aspiration d'air de la première forme de réalisation est constituée comme suit dans la seconde forme de réalisation: la pièce 18 en forme de godet de la première forme de réalisation n'existe plus dans cette seconde forme de réalisation, et il est prévu un élément 25 pour le support de la bille 17a, à la partie inférieure 14a du manchon 22. De plus, le siège 17b de la bille 17a est situé en haut de cette partie inférieure 14a. En outre, un passage 26 en forme de rainure pour le liquide est pratiqué dans la paroi intérieure de cette partie inférieure 14a. Les éléments de cette seconde forme de réalisation autres que ceux qui sont décrits ci-dessus sont identiques à ceux de la première forme de réalisation, et ce second pulvérisateur fonctionne pratiquement de la même manière que celui de la première forme de réalisation, aussi bien en position droite qu'en position renversée, en ce qui concerne l'aspiration du liquide dans la chambre de mise sous pression et l'interdiction de la pénétration d'air dans cette chambre. De plus, cette seconde forme de réalisation assure les mêmes avantages que la première.The cylindrical body 21 of the valve is fixed, by its upper part, to the inner peripheral surface of the sleeve 22, while the lower part of this body 21 constitutes a tilting part 21, applied strongly against the small sleeve 11 of the cylinder 6, of absolutely airtight. In addition, the air suction prohibition valve 17 of the first embodiment is constituted as follows in the second embodiment: the part 18 in the form of a cup of the first embodiment no longer exists in this second embodiment, and there is provided an element 25 for the support of the ball 17a, at the lower part 14a of the sleeve 22. In addition, the seat 17b of the ball 17a is located at the top of this lower part 14a. In addition, a passage 26 in the form of a groove for the liquid is made in the inner wall of this lower part 14a. The elements of this second embodiment other than those described above are identical to those of the first embodiment, and this second sprayer operates in substantially the same manner as that of the first embodiment, both in upright position than in the inverted position, with regard to the suction of the liquid in the pressurization chamber and the prohibition of the penetration of air into this chamber. In addition, this second embodiment provides the same advantages as the first.

La partie basculante 21 b du corps cylindrique 21 de soupape est prévue pour ne fléchir vers le bas, à son extrémité, afin d'ouvrir le passage d'aspiration 24, que lorsqu'il règne pratiquement le vide dans la chambre de mise sous pression 7, pendant le fonctionnement en position renversée.The tilting part 21b of the cylindrical body 21 of the valve is provided so as to bend downward, at its end, in order to open the suction passage 24, only when there is practically a vacuum in the pressurization chamber 7, during operation in the inverted position.

Les figures 2B et 2C représentent une variante du corps cylindrique 21 de la seconde forme de réalisation. Selon cette variante, un corps cylindrique de soupape 27 est fixé au petit manchon 11 du cylindre 6 et il est prévu, sur le pourtour inférieur de ce corps cylindrique 27, une partie basculante 27a qui vient s'appliquer de façon étanche contre la surface périphérique intérieure du manchon 22. De plus, plusieurs nervures 27b sont prévues sur le pourtour de la partie supérieure du corps cylindrique de soupape 27, de manière à former des passages de liquide entre le corps cylindrique 27 et le manchon 22. Celui-ci est muni intérieurement de nervures 28 destinées à renforcer son accouplement au petit manchon 11.Figures 2B and 2C show a variant of the cylindrical body 21 of the second embodiment. According to this variant, a cylindrical valve body 27 is fixed to the small sleeve 11 of the cylinder 6 and there is provided, on the lower periphery of this cylindrical body 27, a tilting part 27a which is applied in leaktight manner against the peripheral surface inside of the sleeve 22. In addition, several ribs 27b are provided on the periphery of the upper part of the cylindrical valve body 27, so as to form liquid passages between the cylindrical body 27 and the sleeve 22. The latter is provided internally of ribs 28 intended to reinforce its coupling to the small sleeve 11.

La figure 2D représente une autre variante de l'élément cylindrique 27 de la seconde forme de réalisation. De ce cas, la partie basculante 27a de l'élément cylindrique 27 représenté sur la figure 2B se présente sous la forme d'une partie basculante 29 dirigée latéralement, servant à assurer un contact étanche, sur son poutour, avec la paroi périphérique intérieure du manchon 22.FIG. 2D represents another variant of the cylindrical element 27 of the second embodiment. In this case, the tilting part 27a of the cylindrical element 27 shown in FIG. 2B is in the form of a tilting part 29 directed laterally, serving to ensure tight contact, on its beam, with the inner peripheral wall of the sleeve 22.

On décrira ci-après, en se repportant à la figure 3, une troisième forme de réalisation de l'invention. Dans cette nouvelle forme de réalisation, le corps cylindrique 13 de soupape de la première forme de réalisation est situé sur le pourtour de la partie supérieure du cylindre 6. Le corps cylindrique 31 de cette nouvelle forme de réalisation comporte une base fixée à la partie périphérique supérieure du cylindre 6 de la pompe 2. La partie inférieure du corps cylindrique 31 forme une jupe 31 a qui s'étale vers l'extérieure, et l'extrémité de cette jupe est en contact étanche avec la surface périphérique intérieure du manchon 22.A third embodiment of the invention will be described below, referring to FIG. 3. In this new embodiment, the cylindrical body 13 of the valve of the first embodiment is located on the periphery of the upper part of the cylinder 6. The cylindrical body 31 of this new embodiment has a base fixed to the peripheral part upper part of the cylinder 6 of the pump 2. The lower part of the cylindrical body 31 forms a skirt 31 a which spreads outwards, and the end of this skirt is in sealed contact with the inner peripheral surface of the sleeve 22.

Les autres parties du pulvérisateur selon cette troisième forme de réalisation sont identiques à celles de la seconde forme de réalisation, et, tout comme le pulvérisateur de la première forme de réalisation, ce nouvel atomiseur peut assurer une aspiration sûre de liquide dans la chambre de mise sous pression, tout en empêchant la pénétration d'air dans cette chambre, aussi bien en position droite qu'en position renversée.The other parts of the sprayer according to this third embodiment are identical to those of the second embodiment, and, like the sprayer of the first embodiment, this new atomizer can ensure a safe suction of liquid into the pressurization chamber, while preventing the penetration of air into this chamber, both in the upright position and in the overturned.

La figure 4 représente une quatrième forme de réalisation de l'invention, suivant laquelle le corps cylindrique 21 utilisé dans la seconde forme de réalisation est intercalé entre le petit manchon 11 du cylindre 6 et un élément inférieur intermédiaire de support, situé dans le manchon 22, sur une partie de ce dernier située au-dessus du siège de soupape 17b. Le corps cylindrique de soupape 42 de cette nouvelle forme de réalisation présente une base attachée à la partie inférieure intermédiaire de support 41, tandis qu'une partie supérieure 42a de se corps, destinée à assurer l'étanchéité, est logée dans le petit manchon 11.FIG. 4 represents a fourth embodiment of the invention, according to which the cylindrical body 21 used in the second embodiment is interposed between the small sleeve 11 of the cylinder 6 and an intermediate lower support element, located in the sleeve 22 , on a part of the latter located above the valve seat 17b. The cylindrical valve body 42 of this new embodiment has a base attached to the lower intermediate support part 41, while an upper part 42a of the body, intended to seal, is housed in the small sleeve 11 .

Par conséquent, la chambre 7 de mise sous pression se trouve en communication avec le passage d'aspiration 24, dans le cas du fonctionnement en position renversée, quand cette partie 42a assurant l'étanchéité se déforme vers l'intérieur. Losque cette partie 42a ne se déforme pas, le tuyau d'aspiration de liquide qui part du manchon 22 vers le bas est en communication avec la chambre 7 de mise sous pression par l'intermédiaire du trou, ou alésage, central du corps cylindrique de soupape 42.Consequently, the pressurization chamber 7 is in communication with the suction passage 24, in the case of operation in the inverted position, when this sealing part 42a deforms inwards. When this part 42a does not deform, the liquid suction pipe which leaves from the sleeve 22 downwards is in communication with the pressurization chamber 7 by means of the central hole, or bore, of the cylindrical body of valve 42.

Les parties de cette nouvelle forme de réalisation autres que celles qui viennent d'être décrites, sont identiques à celles de la seconde forme de réalisation et le pulvérisateur selon cette quatrième forme de réalisation est en mesure d'aspirer du liquide dans la chambre de mise sous pression 7, aussi bien en position droite qu'en position renversée, tout en empêchant la pénétration d'air dans cette chambre.The parts of this new embodiment other than those which have just been described are identical to those of the second embodiment and the sprayer according to this fourth embodiment is able to suck liquid into the delivery chamber. under pressure 7, both in the upright position and in the inverted position, while preventing the penetration of air into this chamber.

La figure 5 représente une cinquième forme de réalisation, selon laquelle le corps cylindrique de soupape 42 utilisé dans la quatrième forme de réalisation, est maintenu dans le petit manchon 11 du cylindre 6. Le corps cylindrique 51 de soupape présente une base supérieure fixée fermement à l'intérieur du petit manchon 11, tandis qu'une jupe inférieure 51a de ce corps cylindrique assure un contact étanche avec la soupape périphérique intérieure d'un manchon 52. Celui-ci est destiné à porter le cylindre 6 et il a le même diamètre extérieur sur toute sa longueur. Le passage d'aspiration 53 destiné au fonctionnement en position renversée, n'existe que sur un côté de la partie supérieure du manchon 52. Les autres parties du pulvérisateur selon cette cinquième forme de réalisation sont identiques à celles de la seconde forme de réalisation.FIG. 5 shows a fifth embodiment, according to which the cylindrical valve body 42 used in the fourth embodiment is held in the small sleeve 11 of the cylinder 6. The cylindrical valve body 51 has an upper base fixed firmly to the inside of the small sleeve 11, while a lower skirt 51a of this cylindrical body ensures tight contact with the inner peripheral valve of a sleeve 52. This is intended to carry the cylinder 6 and it has the same diameter outside over its entire length. The suction passage 53 intended for operation in the inverted position, exists only on one side of the upper part of the sleeve 52. The other parts of the sprayer according to this fifth embodiment are identical to those of the second embodiment.

Dans cette cinquième forme de réalisation du pulvérisateur, la chambre 7 de mise sous pression communique avec un passage 53 pour le fonctionnement en position renversée, losque la jupe 51 a se déforme vers l'intérieur. Ce pulvérisateur peut donc, tout comme celui de la première forme de réalisation, aspirer du liquide dans sa chambre de mise sous pression, tout en empêchant la pénétration d'air dans cette chambre, aussi bien en position droite qu'en position renversée, et il assure ainsi les mêmes avantages que celui de la première forme de réalisation.In this fifth embodiment of the sprayer, the pressurization chamber 7 communicates with a passage 53 for operation in the inverted position, when the skirt 51 a deforms inward. This sprayer can therefore, like that of the first embodiment, suck liquid into its pressurization chamber, while preventing the penetration of air into this chamber, both in the upright position and in the inverted position, and it thus provides the same advantages as that of the first embodiment.

Claims (2)

1. An atomizer usable as well in upright as in inverted posture, including a pump (2) consisting of a cylinder (6) and a piston (5), said pump being adapted to be actuated under the vertical action of an atomizing head (3) in such manner that when said atomizing head is moving apart from a pressurizing chamber (7), the pressure within the pressurizing chamber (7) defined by said piston (5) and cylinder (6) decreases until a vacuum is created therein, so that a liquid may be sucked from a liquid vessel (1) into said pressurizing chamber (7) through a first suction valve (10) arranged in said pressurizing chamber (7) and a first suction passage (14a) for operation in the upright posture or a second suction passage (1'5) for operation in the inverted posture, while when said atomizing head (3) moves closer to the pressurizing chamber (7), a high pressure is created in said pressurizing chamber (7) so as to forcedly open an exhaust valve when the pressure exceeds a predetermined value, in such manner as to atomize said liquid through a nozzle (4) in said atomizing head (3), characterized in that it comprises:
- a second suction valve (13A) arranged in the second suction passage (15), said second suction passage (15) consisting of a sleeve (14, 22) fitted about the cylinder of pump (2), in such manner that the second suction valve (13A) is arranged to prevent the ingress of air into said pressurizing chamber (7) when the atomizer is in its upright posture, and will open when said atomizer is in its inverted posture under the action of avacuum which is created in the pressurizing chamber and is greater than the vacuum actuating the first suction valve (10) for operation in upright posture, and
- an air-suction preventing valve (17), provided for operation in the inverted posture of the atomizer, and so arranged within the first air-suction passage (14a) as to prevent the ingress of air into said pressurizing chamber (7) when the atomizer is in its inverted posture.
2. An atomizer according to claim 1, characterized in that the second suction valve (13A) has a transverse hole, or bore (12), made in a lower portion of said cylinder (6), and a cylindrical valve body (13) secured inside or outside said portion of said cylinder (6) wherein said hole (12) is made.
EP79900637A 1978-06-07 1979-06-06 Sprayer used in both standing and over turning attitudes Expired EP0016839B1 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP77746/78 1978-06-07
JP7774678U JPS61127Y2 (en) 1978-06-07 1978-06-07
JP1978153522U JPS61899Y2 (en) 1978-11-07 1978-11-07
JP153522/78 1978-11-07
JP16478178U JPS6026840Y2 (en) 1978-11-30 1978-11-30 manual pump sprayer
JP164781/78 1978-11-30

Publications (3)

Publication Number Publication Date
EP0016839A4 EP0016839A4 (en) 1980-09-29
EP0016839A1 EP0016839A1 (en) 1980-10-15
EP0016839B1 true EP0016839B1 (en) 1982-10-20

Family

ID=27302506

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Application Number Title Priority Date Filing Date
EP79900637A Expired EP0016839B1 (en) 1978-06-07 1979-06-06 Sprayer used in both standing and over turning attitudes

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Country Link
US (1) US4371098A (en)
EP (1) EP0016839B1 (en)
CA (1) CA1087566A (en)
CH (1) CH650992A5 (en)
DE (1) DE2943074C2 (en)
GB (1) GB2039989B (en)
WO (1) WO1980000011A1 (en)

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Also Published As

Publication number Publication date
US4371098A (en) 1983-02-01
CH650992A5 (en) 1985-08-30
GB2039989A (en) 1980-08-20
EP0016839A1 (en) 1980-10-15
GB2039989B (en) 1982-08-25
DE2943074T1 (en) 1981-02-26
EP0016839A4 (en) 1980-09-29
WO1980000011A1 (en) 1980-01-10
CA1087566A (en) 1980-10-14
DE2943074C2 (en) 1986-07-31

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