EP0270409B1 - Container for dispensing doses of a treatment liquid - Google Patents

Container for dispensing doses of a treatment liquid Download PDF

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Publication number
EP0270409B1
EP0270409B1 EP87402465A EP87402465A EP0270409B1 EP 0270409 B1 EP0270409 B1 EP 0270409B1 EP 87402465 A EP87402465 A EP 87402465A EP 87402465 A EP87402465 A EP 87402465A EP 0270409 B1 EP0270409 B1 EP 0270409B1
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EP
European Patent Office
Prior art keywords
treatment liquid
container
neck
container according
outlet orifice
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 - Lifetime
Application number
EP87402465A
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German (de)
French (fr)
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EP0270409A1 (en
Inventor
Tristan Bavaveas
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Individual
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Individual
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Filing date
Publication date
Priority claimed from FR8615276A external-priority patent/FR2606053B1/en
Priority claimed from FR8706965A external-priority patent/FR2615485B1/en
Application filed by Individual filed Critical Individual
Priority to AT87402465T priority Critical patent/ATE52291T1/en
Publication of EP0270409A1 publication Critical patent/EP0270409A1/en
Application granted granted Critical
Publication of EP0270409B1 publication Critical patent/EP0270409B1/en
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    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D9/00—Sanitary or other accessories for lavatories ; Devices for cleaning or disinfecting the toilet room or the toilet bowl; Devices for eliminating smells
    • E03D9/02—Devices adding a disinfecting, deodorising, or cleaning agent to the water while flushing
    • E03D9/03—Devices adding a disinfecting, deodorising, or cleaning agent to the water while flushing consisting of a separate container with an outlet through which the agent is introduced into the flushing water, e.g. by suction ; Devices for agents in direct contact with flushing water
    • E03D9/033—Devices placed inside or dispensing into the cistern
    • E03D9/037—Active dispensers, i.e. comprising a moving dosing element
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D9/00—Sanitary or other accessories for lavatories ; Devices for cleaning or disinfecting the toilet room or the toilet bowl; Devices for eliminating smells
    • E03D9/02—Devices adding a disinfecting, deodorising, or cleaning agent to the water while flushing
    • E03D2009/028—Devices adding a disinfecting, deodorising, or cleaning agent to the water while flushing using a liquid substance

Definitions

  • the invention relates to a container for dispensing doses of treatment liquid.
  • containers for dispensing doses of treatment liquid comprising a metering device mounted in the neck, the container being intended to operate with the neck directed downwards, successively immersed and emerged in a mass of water, including a toilet flush.
  • the metering device comprises a float hanging under the neck of the container, fixed to one or two movable valves cooperating with one or two fixed seats formed in the neck of the container.
  • This first embodiment is based on the principle that the variation of the water level in the flush causes the vertical ascending or descending sliding of the float which itself causes the opening or closing of the valve (s), which are mechanical or air type.
  • the valves, the seats and the neck of the container are arranged to define metering chambers, with the aim of delivering defined doses of treatment liquid.
  • the containers with metering devices according to this first embodiment have the disadvantages that their operation is linked to the movement of the float with all the inaccuracies which result therefrom; that the stopping of the flow is very random, the closures of the mechanical type proving to be unreliable; and finally, that they require many parts.
  • a discharge hole is formed in a transverse wall spaced from the free edge of the neck by providing an air chamber.
  • the container is only partially filled with the maintenance liquid.
  • This second embodiment is based on the principle that the rise in the water level in the flush above the free edge of the neck traps a mass of air in the air chamber. Then, when the level continues to rise, this mass of air is compressed and, when the overpressure is sufficient, is partially ejected into the container above the treatment liquid where it causes a certain overpressure compared to the ambient atmosphere. outside. When the water level in the flush lowers and comes below the free edge of the neck, the overpressure that existed in the air chamber disappears, as a result of its communication with the ambient atmosphere outside.
  • the embodiments of this second embodiment have the disadvantage that, due to the very principle of operation, the amount of maintenance liquid delivered is not constant over time, as and when the container is empty. Indeed, as the container becomes empty, on the one hand the hydrostatic pressure exerted by the maintenance liquid on the discharge hole decreases and, on the other hand, the volume of air in the container which must be put under overpressure for the evacuation of the maintenance liquid increases.
  • the subject of the invention is a container for dispensing doses of treatment liquid, arranged to deliver constant doses of maintenance liquid, whatever the surface tension of the liquid whose distribution is desired.
  • the invention therefore proposes, firstly, and in a first variant, a container for dispensing doses of a treatment liquid comprising a metering device mounted in the neck, the container being intended to operate with the neck directed downward successively. immersed and emerged in a body of water, in particular from a toilet flush, the metering device being of the type essentially comprising a transverse wall spaced from the free edge of the neck, thus defining an air chamber and a hole for evacuation of the treatment liquid pierced in the wall, the metering device operating in a first phase by creating an air overpressure in the container when the level of the body of water rises above the level of the neck , due to the formation in the chamber of a mass of air separated from the ambient atmosphere by the mass of water, then of its compression and finally of its expulsion into the container via the evacuation hole and, in a e second phase, during the descent of the level of the body of water below the level of the neck by the evacuation of part of the treatment liquid via the evacuation hole which is ejected outside
  • the invention proposes a container for dispensing doses of a treatment liquid comprising a metering device mounted in the neck, characterized in that it comprises a regulating member constituted by a movable mounted part with a passage in a skirt. adjoining the transverse wall, placed in the air chamber, terminated on the side of the free edge of the neck, normally lower, by the discharge hole and on the opposite side, that is to say towards the container, normally upper, through the drain hole.
  • the invention finally proposes and in a second variant a container for dispensing doses of a treatment liquid
  • a metering device mounted in the neck, the metering device being of the type comprising an upper transverse wall spaced from the lower free edge of the neck in defining an air chamber and pierced with a hole for discharging the treatment liquid; a fixed lower transverse return spaced from the lower free edge of the neck and pierced with a hole for discharging the treatment liquid axially spaced from the discharge hole; a fixed side skirt connecting the upper transverse wall and the lower return; a passage of the treatment liquid between the discharge hole and the discharge hole, along the skirt; and a part forming an axially movable needle and arranged to cooperate with the discharge hole, characterized in that the part forming a needle: belongs to a member situated essentially between the upper transverse wall and the lower return; is movable between an extreme lower position in which it cooperates with the lower transverse return forming a seat to close the discharge hole and an upper
  • the invention relates to a container 1 for dispensing doses of a treatment liquid 2, intended mainly for flushing toilet water 3.
  • Liquid 2 has the function of coloring, perfuming, disinfecting, or the like.
  • processing therefore aims to cover any desired function.
  • This liquid generally contains surfactants and, for this reason, has a surface tension very much higher than that of water.
  • the container 1 has a side wall 4, a bottom 5 and a neck (or neck) 6 limited by a free edge 7 defining an opening 8.
  • the container 1 can have a general axis, normally vertical 1a. It can be cylindrical or, preferably flattened with a cross section at least substantially pseudo rectangular. The container 1 is rigid so as not to be substantially deformed in the event of depression or overpressure inside.
  • the treatment liquid 2 only partially fills the container 1, for example 2/3 of its volume, so as to leave therein a certain mass of air 9 necessary for operation.
  • the container 1 can have, for example, a height of the order of 15cm and a total volume of the order of 300cm ⁇ .
  • a stopper (not shown) is screwed or snapped on or other on the neck 6 to close the opening 8.
  • the container 1 normally rests on its bottom 5, the neck 6 being directed upwards.
  • the container 1 comprises a metering device 10 mounted in the neck 6, of the type essentially comprising a transverse wall 11 placed in the neck 6 spaced from the free edge 7; a discharge hole 12 for the treatment liquid drilled in the wall 11 in particular axially (first variant) or laterally (second variant); and an air chamber 13 limited by the wall 11 and the part of the neck 6 extending between the wall 11 and the free edge 7.
  • a hook 14 in particular telescopic and which can also constitute a member for adjusting the relative position of the container 1 in the flush 3 so as to adjust the height relative to the water at which the container 1 is placed, or more generally any other similar holding member makes it possible to detachably fix the container 1 in the flush 3, in this position, so that the neck 6 is respectively immersed or emerged from the body of water 15 of the flush. water 3 when it is full or empty. Consequently, the neck 6 is successively submerged and emerged when the toilet flush is operated 3.
  • the water level 16 of the body of water 15 of the filled toilet flush 3 is moved upwards. discharge hole 12 of a sufficient distance to create the air overpressure necessary for the operation of the metering device 10. This distance is of the order of a few centimeters. For example, the water level 16 of the full flush 3 is a little above the neck 6.
  • the operation of the metering device 10 is as follows:
  • the metering device 10 comprises, according to a first variant and a first aspect of the invention (FIGS. 1 to 4), a regulating member 17a, mechanical, mobile, operating essentially by gravity, having the functions of firstly, to decrease the opening of the passage leading to a discharge hole 18 during the second phase of descent of the water level 16 and discharge of the treatment liquid 2 so as to vary the point of equilibrium between the ambient pressure once the water has been removed and the pressure inside the container 1 with respect to the same equilibrium that would have been obtained without this mechanical regulation and by a hole of constant dimensions and, on the other hand, to decrease the relative variation of the total weight of the regulating member 17a and of the column of treatment liquid 2 which it supports, given the self-weight of the regulating member 17a, this regulating member 17a having the effect of regularizing the dose s distributed as the container 1 is emptied.
  • a regulating member 17a mechanical, mobile, operating essentially by gravity, having the functions of firstly, to decrease the opening of the passage leading to a discharge hole 18 during the second phase of
  • the metering device 10 comprises, according to this same first variant and a second aspect of the invention, a regulating member 17a constituted by a piece 19 movably mounted with a passage 23 in a skirt 20 adjoining the transverse wall 11 , placed in the air chamber 13, terminated on the side of the free edge 7 of the neck 6, in particular the bottom, by a discharge hole 18 and on the opposite side, that is to say towards the container 1, normally upper, through the drain hole 12.
  • the movable part 19 has a side wall 21 spaced from the side wall 22 of the skirt 20 to define between them a calibrated passage 23 for the treatment liquid 2.
  • the skirt 20 has a lower return 25 in which the discharge hole 18 is made in which the movable part 19 slides freely without closing the discharge hole 18.
  • the return 25 preferably has a conical, frustoconical, pyramidal or truncated pyramid shape. whose tip is directed downward, that is to say towards the free edge 7 and whose large base is directed upward, that is to say towards the transverse wall 11.
  • the skirt 20 has an upper return 26 in which the discharge hole 12 is made.
  • the passage 23 between the movable part 19 and the skirt 20 and the open discharge hole 18 have dimensions of the same order of magnitude, depending on the surface tension of the maintenance liquid 2 to determine the flow rate of the maintenance liquid 2.
  • the discharge hole 12 is of sufficient size to supply the passage 23 between the movable part 19 and the skirt 20 in sufficient quantity.
  • the passage 23 therefore has a dimension allowing the evacuation of a precise dose of treatment liquid 2 and subsequently stop the evacuation.
  • the axial displacement stroke of the moving part 19 is of the order of magnitude of the dimension of the discharge hole 18.
  • the size of the open discharge hole 18 is a function of the surface tension of the liquid that one wants to distribute as well as the flow rate that one wishes to obtain.
  • the dimension of the passage between the discharge hole 18 and the lower end of the moving part 19 is of the same order or slightly greater than the dimensions of the passage 23 between the moving part 19 and the skirt 20.
  • the weight of the moving part 19 is greater, in particular much greater, than the weight of the column of treatment liquid 2 on the discharge hole 12.
  • the moving part has a weight of the order of three at five times that of the column of treatment liquid 2 on the discharge hole 12. This arrangement is such that the total weight of the moving part 19 and of the column of treatment liquid 2 varies, in a relative manner, significantly less only if there were no moving part 19 of such a weight. This results in a regulation of the dosage of the treatment liquid 2 delivered.
  • the moving part 19 does not, strictly speaking, constitute a valve intended to hermetically seal the discharge hole 18.
  • the movable part 19 has the function of considerably restricting the passage 23 between the movable part 19 and the skirt 20 to a minimum value suitable for stopping the flow of the liquid from treatment 2 thus locating the equilibrium point of the pressure of the container 1 and that of the ambient air at a level higher than normal without the existence of this moving part 19 and this in order to regularize the doses of treatment liquid 2 issued.
  • the moving part 19 has a regulating effect on the doses of treatment liquid 2 delivered, these being relatively constant from the start to the end of the container 1.
  • These doses are, for example , of the order of 0.125 ml to 0.250 ml of product, which, for a container such as that mentioned above, corresponds, by average normal use, to an operating time of the order of two to four months.
  • the moving part 19 can take two extreme positions: an upper extreme position and an extreme lower position.
  • the upper extreme position the movable part 19 is closest to the discharge hole 12 and the two holes 12 and 18 are open. This position is that which occurs when, during the first operating phase, the air in the chamber 13 is compressed.
  • the lower extreme position the lower extreme part of the movable part 19 is inside the discharge hole 18 without necessarily closing it and its cone-shaped walls rest on the equivalent walls of the lower return 25, the passage 23 , at the contact points being reduced to a value so low that, taking into account the pressures involved and the surface tension of the treatment liquid 2, the flow of liquid is stopped before the internal pressure of the container 1 n 'has returned to its original value. The container 1 therefore always remains under slight overpressure. This lower extreme position occurs at the end of the second phase of operation.
  • the discharge hole 12 is located at the same level or in the immediate vicinity, in particular slightly above, of the wall 11.
  • the skirt 20 as well as the return 25 are located entirely or almost entirely in the room 13.
  • the axial height H of the skirt 20 can be of the order of half the distance E between the wall 11 and the free edge 7 and, on the other hand, the diameter d of the skirt 20 can also be of the order of half the diameter D of the chamber 13.
  • the spacing E can be of the same order of magnitude as the diameter D or slightly greater.
  • the wall 11 is an annular planar blank of a fixed support part 27 mounted in the neck 6 and comprising an outer cylindrical part 28 (of diameter D) held, in particular by force, in the neck 6 and an inner cylindrical part 29 constituting the external wall of the skirt 20.
  • the lower return 25 is preferably formed by the fixed support part 27.
  • Another part 30 forcibly mounted in the support part 27 constitutes the internal wall of the skirt 20 and the upper return 26. This part 30 is mounted after insertion, in the skirt 20 and between the returns 25, 26 of the movable part 19 .
  • the part 30 may include an external annular projection 31 bearing on the wall 11 to axially lock and place the part 30 on the support part 27 in the correct position.
  • the upper return 26 is substantially planar (apart from the projections 24) and perpendicular to the axis of the container 1.
  • the upper return 26 has a generally conical or pyramid shape the tip of which is directed towards the bottom 5 and the large base towards the movable part 19.
  • the movable part 19 has in axial cross section a shape limited by a side wall 21, a transverse upper end wall 32, in particular perpendicular to the axis of the container 1 and a bottom wall 33, in particular in the shape of a cone with point downwards.
  • the part 19 has a circular shape.
  • the moving part 19 has a spherical shape.
  • the weight of the moving part 19 serves to control the overpressure created inside the container 1 after its immersion so as to act on the volume of the dose evacuated after each operation of the flush 3 .
  • the moving part 19 allows each time that the metering device is emerged to evacuate only a dose of liquid 2 corresponding to only part of the amount of air previously introduced into the container 1 at the time of immersion of the metering device .
  • the metering device 10 is such, according to a second variant and a first aspect of the invention (FIGS. 5 and 6), that a part forming a needle 17b belongs to a member 34 located essentially between the transverse wall upper 11 and lower return 25; is movable between an extreme lower position (case) in which it cooperates with the lower return 25 forming a seat to close the discharge hole 18 and an upper position (not shown) in which it is moved away from the lower return 25 to open to the at least partially the discharge hole 18; and on which a downward vertical force is exerted which is on the one hand greater than the maximum force exerted by the treatment liquid 2 on the evacuation hole 12 and, on the other hand, less than the force exerted on the hole discharge 18 due to the water in the full flush via the air chamber 13; so that, firstly, when the flush 3 is full, the needle portion 17b is in the lower extreme position due to the force exerted on it; secondly, when the flush 3 becomes empty, this needle portion 17b first passes from its extreme lower
  • the metering device 10, according to the invention is such, according to this same second variant, a second aspect of the invention and a first possible embodiment (FIG. 5) that the needle portion 17b forms a one-piece assembly, with the member 34 which is rigid and undeformable housed in axial sliding in a fixed jacket 35 comprising a transverse partition of upper end 36 and a lateral partition 37 terminated by a lower opening 38.
  • said force exerted on the forming part needle 17b, in this case, the movable member 34 is its own weight.
  • the passage 23 of the treatment liquid is defined on the one hand by the radial spacing existing between the skirt 20 and the side wall 37 opposite and, on the other hand, by the axial spacing existing between the lower return 25 and the lateral partition 37, the radial spacing being in communication with the axial spacing.
  • the jacket 35 has projections 39 adjoining the lateral partition 37 and directed towards the outside, having the functions, on the one hand, of keeping the jacket 35 in the skirt 20 in place, and, on the other hand , to provide between the lateral partition 37 and the skirt 20 the radial and axial spacings constituting the passage 23 of the treatment liquid.
  • the projections 39 are at least three in number, in particular four or more, distributed regularly around the axis 12 of the metering device 10 and have an axially elongated shape, in particular extending over the entire axial height of the partition. lateral 37.
  • the upper end transverse wall 36 and the upper transverse wall 11 are at least substantially coplanar and planar, the discharge hole 12 being formed between them.
  • the discharge hole 12 therefore has the general shape of a ring.
  • the lower opening 38 and the discharge hole 18 are located opposite and close to each other, the diameter of the lower opening 38 being larger (in particular much larger, than that of the discharge hole 18 ).
  • the area of the discharge hole 18 is greater, in particular much greater than the area of the discharge hole 12.
  • the area of the discharge hole 18 is around 2 to 3 times the area of the discharge hole 12.
  • the return 25 has a frustoconical shape with a point directed downwards and whose opening angle is between 107 degrees and 146 degrees approximately, more especially between 114 degrees and 140 degrees approximately, in particular is equal to or close to 127 degrees.
  • the movable member 34 is limited by an upper transverse face 40, a lateral face 41 and a lower transverse face 42, the lateral face 41 cooperating with the lateral partition 37 with radial clearance 43 so as to allow both axial guidance and the axial sliding of the movable member 34.
  • the movable member 34 projects, through its lower transverse face 42, from the opening 38 of the jacket 35.
  • the lower transverse face 25 has, at least substantially, a conical shape, the point 44 of which protrudes below the discharge hole 18.
  • the opening angle of the lower transverse face 42 is between 81 degrees and 111 degrees approximately, in particular is equal to or of the order of 96 degrees.
  • the lower transverse face 42 forms at its end a bulged point 44.
  • the mobile member 34 rests on the lower return 25, in particular at the edge of the discharge hole 18.
  • the real or fictitious vertices respectively of the mobile member 34 and of the lower return 25, conical and frustoconical are confused or close, the opening angle of the lower return 25 being greater than that of the lower transverse face 42 so as to ensure, on the one hand, good contact of the movable member 34 on the edge of the discharge hole 18 and, on the other hand, the existence, near the lateral face 41, of a clearance 45 between the lower transverse face 42 and the lower return 25, clearance 45 in communication with the passage 23 through the 'mentioned axial spacing, which allows the treatment liquid 2 to act on the movable member, in the direction of its lifting.
  • the lower end edge 46 of the lateral partition 37 around the opening 38 is bevelled so as to be at least substantially parallel to the lower return 25.
  • the member 34 in particular its lower transverse face 42, is spaced from the lower return 25, in particular at the edge of the discharge hole 18 by an equal distance or on the order of the axial spacing between the return lower 25 and the side wall 37, more precisely its edge 46.
  • the sliding stroke of the movable member 34 is small, but necessary and sufficient to ensure the optimal operation of the metering device 10.
  • the movable member 34 and / or the jacket 35 is made of a rigid material, in particular polyacetal or equivalent.
  • the return 25, the upper transverse wall 11 and the skirt 20 are in one piece and form part of a part 27 also comprising an external cylindrical part 28.
  • the part 27 is made of a material with a certain flexibility to facilitate sealing with the neck of the container and / or with the movable member 34.
  • the movable member 34 has a generally cylindrical shape with a lower part 42 constituting the needle-forming part 17b conical or pseudo-conical. It is slidably mounted with little play and short stroke in the jacket 35 which, in axial section, has a general shape of an inverted U that the conical or pseudo-conical lower part 42 projects from the opening 38 of the U.
  • the shirt 35 is itself mounted, thanks to the projections 39, fixed in the skirt 20 forming a chimney.
  • the part 27 has a general shape of double U, namely a large inverted U defined as regards the core by the upper transverse wall 11 and as regards the wings by the external cylindrical part 28 and a small U placed in the large U defined as regards the core, pierced, by the lower return 25 and as regards the wings by the skirt 20 connected to the soul of the large U.
  • the weight of the movable member 34 is for example, on the one hand, slightly greater than the maximum force exerted by the treatment liquid 2 on the evacuation hole 12 and / or, on the other hand, significantly less than the maximum force exerted by the flushing water on the discharge hole 18 via the air chamber 13.
  • the metering device 10 according to the invention is such, according to another aspect of the invention of this same second variant and the second preferred embodiment (FIG. 6), that the needle-forming part 17b constitutes the lower end part of a one-piece member 47 whose upper end portion 48 is fixed and has a general shape close to that of the fixed jacket 35 previously described, with the notable exception of the lower opening 38 absent in this embodiment.
  • an elastically deformable member 49 acts on the needle portion 17b to produce on this portion 17b, the necessary force, as described above.
  • said force is, in this second mode, essentially or substantially the result of an external applied force.
  • the member 47 comprises a part, intermediate connection 50 interposed between the needle-forming part 17b and the upper end part 48, this intermediate connection part 50 being. deformable, so that an axial relative displacement is possible between the parts 17b and 48, therefore the axial displacement of the part 17b, the part 48 being immobilized.
  • This deformability of the intermediate part 50 can be achieved in any suitable way, in particular by weakening the thickness of the member 47.
  • the member 47 is, in a possible hollow embodiment, so as to define a hermetically closed central cavity 51 in which the member 49 is housed.
  • the member 49 is for example a helical spring acting so as to exert a force in the direction of expansion.
  • the member 47 is, in a possible embodiment, such that the transverse partition at the upper end 36 is arranged removable but hermetically lockable on the upper upper part 48 of the member 47, for example snap-in by means of projections and recesses 52.
  • the intermediate connection part 50 is deformable, the needle part 17b being undeformable, in particular sufficiently thick, in particular by forming, inside the cavity 51 a seat for the spring 49.
  • the opening angle of the lower transverse face 42 is equal to or of the order of 120 ° .
  • the metering device according to the invention makes it possible to dispense constant or substantially constant doses of treatment liquid. These doses can vary, for example, from 0.10ml to 0.25ml each.
  • Container 1 can accommodate 2,500 or more doses.
  • the physical parameters of a metering device (in particular dimensions, weight, force, etc.) are determined by a person skilled in the art according to the desired dose.
  • the area of the discharge hole 12 is equal to or slightly greater than that of the discharge hole 10.
  • the stroke of the member 17, 19 is a function of the area of flow in passage 23 in order to prevent the opening of the discharge hole from being larger than the flow area in passage 23.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

1. Container for distribution of doses of a treatment liquid (2) comprising a nozzle (10) fitted to the neck (6), the container (1) being designed to function with the neck (6) facing downwards submerging and emerging alternately in a volume of water (15), notable a lavatory cistern (3), the nozzle device (10) being of the type comprised mainly of a transparent partition (11) at a distance from the free edge (7) of the neck (6) thus forming an air compartment (13) and an outlet orifice (12) for the treatment liquid (2), drilled in the partition (11), the nozzle device (10) functioning in the first phase by the build-up of an air overpressure in the container (1) as the level (16) rises in the volume of water (15) above the level of the neck (6), due to the formation in the air compartment (13) of a volume of air separated from the ambient atmosphere by the volume of water (15) then by its compression and finally its expulsion into the container (1) via the outlet orifice (12) and, in the second phase, as the level (16) of the volume of water (15) descends below the level of the neck (6) due to the reduction in the air overpressure and expulsion of the treatment liquid (2) via the outlet orifice (12), resulting from the connection of the compartment (13) with the ambient atmosphere, until the relative pressures in relation to the surface tension of the treatment liquid cut off the treatment liquid (2) flow, characterised by the nozzle device (10) which is fitted with a mechanical, moving, regulation system (17), functioning mainly due to gravity, and whose functions are, on the one hand, to reduce the opening of the passage (23) communicating with a discharge orifice (18) during the second phase of the water level descent (16) and treatment liquid (2) discharge and, on the other hand, to reduce the relative variation in the total weight of the regulation system (17) and the column of treatment liquid (2) it supports, due to the weight of the regulation system (17) itself, this regulation system being used to provide an evenly distributed dose as the container (1) is gradually emptied.

Description

L'invention concerne un récipient pour distribuer des doses de liquide de traitement.The invention relates to a container for dispensing doses of treatment liquid.

On connaît de nombreuses formes de réalisation de récipients pour distribuer des doses de liquide de traitement, comportant un dispositif doseur monté dans le col, le récipient étant destiné à fonctionner avec le col dirigé vers le bas, successivement immergé et émergé dans une masse d'eau, notamment d'une chasse d'eau de toilette.There are many known embodiments of containers for dispensing doses of treatment liquid, comprising a metering device mounted in the neck, the container being intended to operate with the neck directed downwards, successively immersed and emerged in a mass of water, including a toilet flush.

Dans une première forme de réalisation, faisant l'objet de nombreuses variantes, le dispositif doseur comporte un flotteur pendant sous le col du récipient, fixé à un ou deux clapets mobiles coopérant avec un ou deux sièges fixes ménagés dans le col du récipient. Cette première forme de réalisation est fondée sur le principe que la variation du niveau d'eau dans la chasse d'eau provoque le coulissement vertical ascendant ou descendant du flotteur qui lui-même provoque l'ouverture et la fermeture du ou des clapets, lesquels sont de type mécanique ou à air. Selon certaines variantes, les clapets, les sièges et le col du récipient sont agencés pour définir des chambres de dosage, avec pour objectif de délivrer des doses définies de liquide de traitement. Les récipients avec dispositifs doseur selon cette première forme de réalisation ont comme inconvénients que leur fonctionnement est lié au mouvement du flotteur avec toutes les imprécisions qui en résultent ; que l'arrêt de l'écoulement est très aléatoire, les fermetures de type mécanique se révélant peu fiable ; et enfin, qu'ils nécessitent de nombreuses pièces.In a first embodiment, subject to numerous variants, the metering device comprises a float hanging under the neck of the container, fixed to one or two movable valves cooperating with one or two fixed seats formed in the neck of the container. This first embodiment is based on the principle that the variation of the water level in the flush causes the vertical ascending or descending sliding of the float which itself causes the opening or closing of the valve (s), which are mechanical or air type. According to certain variants, the valves, the seats and the neck of the container are arranged to define metering chambers, with the aim of delivering defined doses of treatment liquid. The containers with metering devices according to this first embodiment have the disadvantages that their operation is linked to the movement of the float with all the inaccuracies which result therefrom; that the stopping of the flow is very random, the closures of the mechanical type proving to be unreliable; and finally, that they require many parts.

Dans une seconde forme de réalisation, un trou de décharge est ménagé dans une paroi transversale écartée du bord libre du goulot en ménageant une chambre d'air. Le récipient n'est que partiellement rempli avec le liquide d'entretien. Cette seconde forme de réalisation est fondée sur le principe que la montée du niveau de l'eau dans la chasse d'eau au dessus du bord libre du col emprisonne une masse d'air dans la chambre d'air. Puis, lorsque le niveau continue de monter, cette masse d'air est compressée et, lorsque la surpression est suffisante, est éjectée partiellement dans le récipient au-dessus du liquide de traitement où il provoque une certaine surpression par rapport à l'atmosphère ambiante extérieure. Lorsque le niveau de l'eau dans la chasse d'eau s'abaisse et vient en dessous du bord libre du col, la surpression qui existait dans la chambre d'air disparaît, par suite de sa mise en communication avec l'atmosphère ambiante extérieure. La surpression existant dans le récipient provoque alors l'expulsion de liquide de traitement jusqu'à ce que l'équilibre des pressions soit de nouveau réalisé de part et d'autre du trou de décharge. Cette seconde forme de réalisation est décrite dans les brevets anglais GB-A 710 796, GB-A 2 094 846. Cette seconde forme de réalisation présente, sur la première forme de réalisation décrite précédemment, deux avantages essentiels. D'une part, un fonctionnement "hydraulique" résultant de la seule variation de la pression dans le temps par suite du remplissage et de la vidange de la chasse d'eau et de la différence de pression qui en résulte de part et d'autre du trou de décharge, ce fonctionnement étant théoriquement continu par opposition à un fonctionnement "mécanique" mettant en jeu l'entraînement d'un flotteur commandant un ou plusieurs clapets, qui finissent tous par se bloquer et dont le fonctionnement est donc forcément discontinu. Cependant, les formes d'exécution de cette seconde forme de réalisation présentant comme inconvénient le fait que, du fait du principe même de fonctionnement, la quantité de liquide d'entretien délivrée n'est pas constante dans le temps, au fur et à mesure que le récipient se vide. En effet, au fur et à mesure que le récipient se vide, d'une part la pression hydrostatique exercée par le liquide d'entretien sur le trou de décharge diminue et, d'autre part, le volume d'air dans le récipient qui doit être mis en surpression pour l'évacuation du liquide d'entretien augmente.In a second embodiment, a discharge hole is formed in a transverse wall spaced from the free edge of the neck by providing an air chamber. The container is only partially filled with the maintenance liquid. This second embodiment is based on the principle that the rise in the water level in the flush above the free edge of the neck traps a mass of air in the air chamber. Then, when the level continues to rise, this mass of air is compressed and, when the overpressure is sufficient, is partially ejected into the container above the treatment liquid where it causes a certain overpressure compared to the ambient atmosphere. outside. When the water level in the flush lowers and comes below the free edge of the neck, the overpressure that existed in the air chamber disappears, as a result of its communication with the ambient atmosphere outside. The overpressure existing in the container then causes the expulsion of treatment liquid until the pressure balance is again achieved on either side of the discharge hole. This second embodiment is described in English patents GB-A 710,796, GB-A 2,094,846. This second embodiment has two essential advantages over the first embodiment described above. On the one hand, a "hydraulic" operation resulting from the only variation of the pressure over time as a result of the filling and emptying of the flush and the difference in pressure which results therefrom on both sides of the discharge hole, this operation being theoretically continuous as opposed to a "mechanical" operation involving the driving of a float controlling one or more valves, which all end up blocking and whose operation is therefore necessarily discontinuous. However, the embodiments of this second embodiment have the disadvantage that, due to the very principle of operation, the amount of maintenance liquid delivered is not constant over time, as and when the container is empty. Indeed, as the container becomes empty, on the one hand the hydrostatic pressure exerted by the maintenance liquid on the discharge hole decreases and, on the other hand, the volume of air in the container which must be put under overpressure for the evacuation of the maintenance liquid increases.

L'invention a pour objet un récipient pour distribuer des doses de liquide de traitement, agencé pour délivrer des doses constantes de liquide d'entretien, quelle que soit la tension superficielle du liquide dont on souhaite la distribution.The subject of the invention is a container for dispensing doses of treatment liquid, arranged to deliver constant doses of maintenance liquid, whatever the surface tension of the liquid whose distribution is desired.

L'invention propose donc, d'abord, et dans une première variante un récipient pour distribuer des doses d'un liquide de traitement comportant un dispositif doseur monté dans le col, le récipient étant destiné à fonctionner avec le col dirigé vers le bas successivement immergé et émergé dans une masse d'eau, notamment d'une chasse d'eau de toilette, le dispositif doseur étant du type comportant essentiellement une paroi transversale écartée du bord libre du col en définissant ainsi une chambre d'air et un trou d'évacuation du liquide de traitement percé dans la paroi, le dispositif doseur fonctionnant dans une première phase par création d'une surpression d'air dans le récipient lors de la montée du niveau de la masse d'eau au-dessus du niveau du col, du fait de la formation dans la chambre d'une masse d'air séparée de l'atmosphère ambiante par la masse d'eau puis de sa compression et enfin de son expulsion dans le récipient via le trou d'évacuation et, dans une seconde phase, lors de la descente du niveau de la masse d'eau en-dessous du niveau du col par l'évacuation d'une partie du liquide de traitement via le trou d'évacuation qui se trouve éjecté à l'extérieur du récipient à la suite de la surpression créée précédemment dans celui-ci, du fait de la mise en communication de la chambre d'air avec l'atmosphère ambiante, jusqu'à ce que la pression du récipient se retrouve à une valeur correspondant à celle de l'air ambiant provoquant ainsi l'arrêt de l'écoulement du liquide de traitement, caractérisé en ce que le dispositif doseur comporte un organe de régulation mécanique, mobile, fonctionnant essentiellement par gravité, ayant pour fonctions, d'une part, de diminuer l'ouverture d'un passage conduisant à un trou de décharge lors de la seconde phase de descente du niveau d'eau et de décharge du liquide de traitement et, d'autre part, de diminuer la variation relative du poids total de l'organe de régulation et de la colonne de liquide de traitement qu'il supporte, étant donné le poids propre de l'organe de régulation, cet organe de régulation ayant pour effet de régulariser les doses distribuées au fur et à mesure que le récipient est vidé.The invention therefore proposes, firstly, and in a first variant, a container for dispensing doses of a treatment liquid comprising a metering device mounted in the neck, the container being intended to operate with the neck directed downward successively. immersed and emerged in a body of water, in particular from a toilet flush, the metering device being of the type essentially comprising a transverse wall spaced from the free edge of the neck, thus defining an air chamber and a hole for evacuation of the treatment liquid pierced in the wall, the metering device operating in a first phase by creating an air overpressure in the container when the level of the body of water rises above the level of the neck , due to the formation in the chamber of a mass of air separated from the ambient atmosphere by the mass of water, then of its compression and finally of its expulsion into the container via the evacuation hole and, in a e second phase, during the descent of the level of the body of water below the level of the neck by the evacuation of part of the treatment liquid via the evacuation hole which is ejected outside the container as a result of the overpressure previously created therein, due to the communication of the air chamber with the ambient atmosphere, until the pressure of the container is found at a value corresponding to that ambient air thus causing the flow of the treatment liquid to stop, characterized in that the metering device comprises a mechanical, mobile regulating member, operating essentially by gravity, having the functions, on the one hand, of decrease the opening of a passage leading to a discharge hole during the second phase of descent of the water level and discharge of the treatment liquid and, on the other hand, to decrease the relative variation of the total weight of the regulator and the column of processing liquid it supports, given the dead weight of the gold gane of regulation, this regulating body having the effect of regularizing the doses distributed as and when the container is emptied.

L'invention propose, ensuite, un récipient pour distribuer des doses d'un liquide de traitement comportant un dispositif doseur monté dans le col caractérisé en ce qu'il comporte un organe de régulation constitué par une pièce montée mobile avec un passage dans une jupe attenante à la paroi transversale, placée dans la chambre d'air, terminée du côté du bord libre du col, normalement inférieur, par le trou de décharge et du côté opposé, c'est-à-dire vers le récipient, normalement supérieur, par le trou d'évacuation.The invention then proposes a container for dispensing doses of a treatment liquid comprising a metering device mounted in the neck, characterized in that it comprises a regulating member constituted by a movable mounted part with a passage in a skirt. adjoining the transverse wall, placed in the air chamber, terminated on the side of the free edge of the neck, normally lower, by the discharge hole and on the opposite side, that is to say towards the container, normally upper, through the drain hole.

L'invention propose enfin et dans une seconde variante un récipient pour distribuer des doses d'un liquide de traitement comportant un dispositif doseur monté dans le col, le dispositif doseur étant du type comportant une paroi transversale supérieure écartée du bord libre inférieur du col en définissant une chambre d'air et percée d'un trou d'évacuation du liquide de traitement ; un retour transversal inférieur fixe écarté du bord libre inférieur du col et percé d'un trou de décharge du liquide de traitement écarté axialement du trou d'évacuation ; une jupe latérale fixe reliant la paroi transversale supérieure et le retour inférieur ; un passage du liquide de traitement entre le trou d'évacuation et le trou de décharge, le long de la jupe ; et une partie formant pointeau mobile axialement et agencée pour coopérer avec le trou de décharge, caractérisé en ce que la partie formant pointeau : apppartient à un organe situé essentiellement entre la paroi transversale supérieure et le retour inférieur ; est mobile entre une position extrême inférieure dans laquelle elle coopère avec le retour transversal inférieur formant siège pour fermer le trou de décharge et une position supérieure dans laquelle elle est écartée du retour inférieur pour ouvrir au moins partiellement le trou de décharge ; et sur laquelle s'exerce une force verticale descendante qui est, d'une part supérieure à la force maximale exercée par le liquide de traitement sur le trou d'évacuation et, d'autre part, inférieure à la force exercée sur le trou de décharge du fait de l'eau se trouvant dans la chasse pleine via la chambre d'air ; de manière que, en premier lieu, lorsque la chasse est pleine, cette partie formant pointeau soit en position extrême inférieure du fait de la force qui s'exerce sur elle ; en second lieu, lorsque la chasse se vide, cette partie formant pointeau passe d'abord de sa position extrême inférieure à une position supérieure du fait que cette force est inférieure à la force exercée en sens opposé par la surpression d'air dans le récipient au-dessus du liquide de traitement et par le liquide de traitement soi-même, jusqu'à écoulement d'une dose de liquide de traitement par le trou de décharge et que cette partie formant pointeau passe ensuite de cette position supérieure à sa position extrême inférieure lorsque la force exercée dans le sens opposé à la force qui s'exerce sur cette partie formant pointeau est inférieure à cette dernière force ; et, en troisième lieu, lorsque la chasse se remplit, cette partie formant pointeau passe d'abord de sa position extrême inférieure à cette position supérieure du fait que la force exercée par l'eau de la chasse est supérieure à celle exercée en sens opposé par le liquide de traitement, ce qui provoque le transfert d'air de la chambre d'air à l'intérieur du récipient au-dessus du liquide de traitement via le trou de décharge, le passage et le trou d'évacuation en participant ainsi à la création de ladite surpression d'air et cette partie formant pointeau soit ensuite passée de cette position supérieure à sa position extrême inférieure, du fait de la force qui s'exerce sur ladite partie formant pointeau, lorsque les surpressions d'air à l'intérieur du récipient au-dessus du liquide de traitement et à l'intérieur de la chambre d'air sont substantiellement égales.The invention finally proposes and in a second variant a container for dispensing doses of a treatment liquid comprising a metering device mounted in the neck, the metering device being of the type comprising an upper transverse wall spaced from the lower free edge of the neck in defining an air chamber and pierced with a hole for discharging the treatment liquid; a fixed lower transverse return spaced from the lower free edge of the neck and pierced with a hole for discharging the treatment liquid axially spaced from the discharge hole; a fixed side skirt connecting the upper transverse wall and the lower return; a passage of the treatment liquid between the discharge hole and the discharge hole, along the skirt; and a part forming an axially movable needle and arranged to cooperate with the discharge hole, characterized in that the part forming a needle: belongs to a member situated essentially between the upper transverse wall and the lower return; is movable between an extreme lower position in which it cooperates with the lower transverse return forming a seat to close the discharge hole and an upper position in which it is moved away from the lower return to at least partially open the discharge hole; and on which is exerted a vertical downward force which is, on the one hand greater than the maximum force exerted by the treatment liquid on the evacuation hole and, on the other hand, less than the force exerted on the discharge due to the water in the full flush via the air chamber; so that, firstly, when the flush is full, this needle portion is in the lower extreme position due to the force exerted on it; secondly, when the flush empties, this needle portion first passes from its lower extreme position to a higher position because this force is less than the force exerted in the opposite direction by the air pressure in the container above the treatment liquid and by the treatment liquid itself, until a dose of treatment liquid has flowed through the discharge hole and this needle portion then passes from this upper position to its extreme position lower when the force exerted in the opposite direction to the force exerted on this needle portion is less than this latter force; and, thirdly, when the flush fills, this needle portion first passes from its extreme lower position to this upper position because the force exerted by the flush water is greater than that exerted in the opposite direction by the treatment liquid, which causes the transfer of air from the air chamber inside the container above the treatment liquid via the discharge hole, the passage and the evacuation hole thereby participating at the creation of said air overpressure and this needle portion is then passed from this upper position to its extreme lower position, due to the force exerted on said needle portion, when the air pressures at the the interior of the container above the process liquid and the interior of the air chamber are substantially equal.

Les autres caractéristiques et avantages de l'invention résulteront de la description qui suivra en référence aux dessins annexés dans lesquels:

  • . La figure 1 est une vue schématique montrant le mode de montage d'un récipient selon la première variante de l'invention dans une chasse d'eau de toilette, le récipient étant rempli, la chasse étant également remplie.
  • . Les figures 2A et 2B sont deux vues schématiques, partielles, à plus grande échelle, d'une première forme de réalisation possible de la première variante de l'invention dans deux états différents de fonctionnement, respectivement chasse vide et chasse remplie.
  • . Les figures 3 et 4 sont deux vues schématiques, partielles, à plus grande échelle, d'une seconde et d'une troisième forme de réalisation possible de la première variante.
  • . Les figures 5 et 6 sont deux vues schématiques en coupe par un plan axial du dispositif doseur selon la seconde variante de l'invention représenté partiellement (la chasse d'eau n'étant pas représentée) et selon deux modes de réalisation.
The other characteristics and advantages of the invention will emerge from the description which follows with reference to the appended drawings in which:
  • . Figure 1 is a schematic view showing the method of mounting a container according to the first variant of the invention in a toilet flush, the container being filled, the flush also being filled.
  • . FIGS. 2A and 2B are two schematic partial views, on a larger scale, of a first possible embodiment of the first variant of the invention in two different operating states, empty flush and filled flush respectively.
  • . Figures 3 and 4 are two schematic views, partial, on a larger scale, of a second and a third possible embodiment of the first variant.
  • . Figures 5 and 6 are two schematic sectional views through an axial plane of the metering device according to the second variant of the invention shown partially (the flush is not shown) and according to two embodiments.

L'invention concerne un récipient 1 pour distribuer des doses d'un liquide de traitement 2, destiné principalement à une chasse d'eau 3 de toilette.The invention relates to a container 1 for dispensing doses of a treatment liquid 2, intended mainly for flushing toilet water 3.

Le liquide 2 a, comme fonction, de colorer, de parfumer, de désinfecter, ou autre. Le qualificatif "de traitement" vise donc à couvrir toute fonction souhaitée. Ce liquide contient généralement des produits tensio-actifs et, pour cette raison, a une tension superficielle très nettement supérieure à celle de l'eau.Liquid 2 has the function of coloring, perfuming, disinfecting, or the like. The qualifier "processing" therefore aims to cover any desired function. This liquid generally contains surfactants and, for this reason, has a surface tension very much higher than that of water.

Le récipient 1 comporte une paroi latérale 4, un fond 5 et un col (ou goulot) 6 limité par un bord libre 7 définissant une ouveture 8.The container 1 has a side wall 4, a bottom 5 and a neck (or neck) 6 limited by a free edge 7 defining an opening 8.

Le récipient 1 peut présenter un axe général, normalement vertical 1a. Il peut être cylindrique ou, préférentiellement aplati avec une section droite transversale au moins sensiblement pseudo rectangulaire. Le récipient 1 est rigide de manière à ne pas être substantiellement déformé en cas de dépression ou de surpression à l'intérieur.The container 1 can have a general axis, normally vertical 1a. It can be cylindrical or, preferably flattened with a cross section at least substantially pseudo rectangular. The container 1 is rigid so as not to be substantially deformed in the event of depression or overpressure inside.

Initialement, le liquide de traitement 2 remplit seulement partiellement le récipient 1, par exemple aux 2/3 de son volume, de manière à laisser, dans celui-ci, une certaine masse d'air 9 nécessaire au fonctionnement.Initially, the treatment liquid 2 only partially fills the container 1, for example 2/3 of its volume, so as to leave therein a certain mass of air 9 necessary for operation.

Le récipient 1 peut avoir, par exemple, une hauteur de l'ordre de 15cm et un volume total de l'ordre de 300cmε.The container 1 can have, for example, a height of the order of 15cm and a total volume of the order of 300cmε.

Avant usage, pour le stockage et le transport, un bouchon (non représenté) est vissé ou encliqueté ou autre sur le col 6 pour fermer l'ouverture 8. Dans cette situation, le récipient 1 normalement repose sur son fond 5, le col 6 étant dirigé vers le haut.Before use, for storage and transport, a stopper (not shown) is screwed or snapped on or other on the neck 6 to close the opening 8. In this situation, the container 1 normally rests on its bottom 5, the neck 6 being directed upwards.

Le récipient 1 comporte un dispositif doseur 10 monté dans le col 6, du type comportant essentiellement une paroi transversale 11 placée dans le col 6 écartée du bord libre 7 ; un trou d'évacuation 12 du liquide de traitement percé dans la paroi 11 notamment axialement (première variante) ou latéralement (seconde variante) ; et une chambre d'air 13 limitée par la paroi 11 et la partie du col 6 s'étendant entre la paroi 11 et le bord libre 7.The container 1 comprises a metering device 10 mounted in the neck 6, of the type essentially comprising a transverse wall 11 placed in the neck 6 spaced from the free edge 7; a discharge hole 12 for the treatment liquid drilled in the wall 11 in particular axially (first variant) or laterally (second variant); and an air chamber 13 limited by the wall 11 and the part of the neck 6 extending between the wall 11 and the free edge 7.

En fonctionnement, le récipient 1 est placé, bouchon enlevé, col 6 dirigé vers le bas dans la chasse d'eau 3, notamment verticalement. Un crochet 14 en particulier téléscopique et pouvant constituer également un organe de réglage de la position relative du récipient 1 dans la chasse d'eau 3 de manière à régler la hauteur par rapport à l'eau à laquelle est placé le récipient 1, ou plus généralement tout autre organe de maintien similaire permet de fixer de façon amovible le récipient 1 dans la chasse d'eau 3, dans cette position, de manière que le col 6 soit respectivement immergé ou émergé de la masse d'eau 15 de la chasse d'eau 3 lorsque celle-ci est pleine ou vide. Par conséquent, le col 6 est successivement immergé et émergé lorsqu'on fait fonctionner la chasse d'eau 3. Le niveau d'eau 16 de la masse d'eau 15 de la chasse d'eau 3 remplie est écarté vers le haut du trou d'évacuation 12 d'une distance suffisante pour créer la surpression d'air nécessaire au fonctionnement du dispositif doseur 10. Cette distance est de l'ordre de quelques centimètres. Par example, le niveau d'eau 16 de la chasse d'eau 3 pleine se trouve un peu au-dessus du col 6.In operation, the container 1 is placed, cap removed, neck 6 directed downward in the flush 3, in particular vertically. A hook 14 in particular telescopic and which can also constitute a member for adjusting the relative position of the container 1 in the flush 3 so as to adjust the height relative to the water at which the container 1 is placed, or more generally any other similar holding member makes it possible to detachably fix the container 1 in the flush 3, in this position, so that the neck 6 is respectively immersed or emerged from the body of water 15 of the flush. water 3 when it is full or empty. Consequently, the neck 6 is successively submerged and emerged when the toilet flush is operated 3. The water level 16 of the body of water 15 of the filled toilet flush 3 is moved upwards. discharge hole 12 of a sufficient distance to create the air overpressure necessary for the operation of the metering device 10. This distance is of the order of a few centimeters. For example, the water level 16 of the full flush 3 is a little above the neck 6.

Le fonctionnement du dispositif doseur 10 est le suivant :The operation of the metering device 10 is as follows:

Lorsque la chasse d'eau 3 se remplit d'eau, après actionnement, le niveau 16 monte jusqu'à atteindre le bord libre 7. A cet isntant, une certaine masse d'air se trouve emprisonnée dans la chambre d'air 13. Le niveau 16 continue à monter jusqu'au niveau maximal correspondant à la chasse d'eau 3 pleine. Cette élévation du niveau 16 provoque une surpression de l'air dans la chambre 13 par rapport à la pression existant à l'intérieur du récipient 1. Lorsque la surpression est suffisante, de l'air de la chambre 13 est expulsé dans le récipient 1 via le trou d'évacuation 12 et à travers le liquide de traitement 2 jusqu'à la masse d'air 9 se trouvant alors sous le fond 5, jusqu'à ce qu'un nouvel équilibre des pressions s'établisse de part et d'autre du trou d'évacuation 12. Dans cette première phase, il y a donc création d'une surpression d'air dans le récipient 1.When the flush 3 fills with water, after actuation, the level 16 rises until it reaches the free edge 7. At this point, a certain mass of air is trapped in the air chamber 13. Level 16 continues to rise to the maximum level corresponding to flushing 3 full. This elevation of the level 16 causes an overpressure of the air in the chamber 13 relative to the pressure existing inside the container 1. When the overpressure is sufficient, air from the chamber 13 is expelled into the container 1 via the discharge hole 12 and through the treatment liquid 2 to the air mass 9 then being under the bottom 5, until a new pressure balance is established on both sides 'other of the discharge hole 12. In this first phase, there is therefore an overpressure of air in the container 1.

Dans cette situation d'équilibre, la chasse d'eau 3 pleine, le liquide de traitement 2 ne peut s'écouler par le trou d'évacuation 12, compte tenu des pressions de part et d'autre du trou 12 et des dimensions du trou 12.In this equilibrium situation, the flush 3 full, the treatment liquid 2 cannot flow through the discharge hole 12, taking into account the pressures on either side of the hole 12 and the dimensions of the hole 12.

Lorsque la chasse d'eau 3 est actionnée, la masse d'eau 15 qu'elle contient est évacuée et le niveau 16 descend. Lorsque le niveau 16 atteint le bord libre 7, la chambre d'air 13 vient en communication avec l'atmosphère ambiante extérieure et la surpression qui existait précédemment dans cette chambre 13 disparaît. Il en résulte que la pression au-dessus du trou d'évacuation 12, c'est-à-dire là où se trouve le liquide de traitement 2 est supérieure à celle qui existe au-dessous dudit trou 12, dans la chambre 13, du fait de la surpression précédemment créée. Cette différence des pressions de part et d'autre de la paroi 11 provoque l'évacuation partielle du liquide de traitement 2 via le trou d'évacuation 12 (seconde phase). Cet écoulement du liquide de traitement 2 s'arrête lorsque les pressions relatives eu égard la tension superficielle du liquide de traitement 2 et la pression hydrostatique arrivent en équilibre.When the flush 3 is activated, the body of water 15 it contains is evacuated and the level 16 goes down. When the level 16 reaches the free edge 7, the air chamber 13 comes into communication with the external ambient atmosphere and the overpressure which previously existed in this chamber 13 disappears. As a result, the pressure above the discharge hole 12, that is to say where the treatment liquid 2 is located, is greater than that which exists below said hole 12, in the chamber 13, due to the previously created overpressure. This difference in pressures on either side of the wall 11 causes the partial discharge of the treatment liquid 2 via the discharge hole 12 (second phase). This flow of the treatment liquid 2 stops when the relative pressures with respect to the surface tension of the treatment liquid 2 and the hydrostatic pressure arrive in equilibrium.

Le dispositif doseur 10 selon l'invention comporte, selon une première variante et un premier aspect de l'invention (figures 1 à 4), un organe de régulation 17a, mécanique, mobile, fonctionnant essentiellement par gravité, ayant pour fonctions, d'une part, de diminuer l'ouverture du passage conduisant à un trou de décharge 18 lors de la seconde phase de descente du niveau d'eau 16 et de décharge du liquide de traitement 2 de façon à faire varier le point d'équilibre entre la pression ambiante une fois l'eau retirée et la pression à l'intérieur du récipient 1 par rapport au même équilibre que l'on aurait obtenu sans cette régulation mécanique et par un trou de dimensions constantes et, d'autre part, de diminuer la variation relative du poids total de l'organe de régulation 17a et de la colonne de liquide de traitement 2 qu'il supporte, étant donné le poids propre de l'organe de régulation 17a, cet organe de régulation 17a ayant pour effet de régulariser les doses distribuées au fur et à mesure que le récipient 1 est vidé.The metering device 10 according to the invention comprises, according to a first variant and a first aspect of the invention (FIGS. 1 to 4), a regulating member 17a, mechanical, mobile, operating essentially by gravity, having the functions of firstly, to decrease the opening of the passage leading to a discharge hole 18 during the second phase of descent of the water level 16 and discharge of the treatment liquid 2 so as to vary the point of equilibrium between the ambient pressure once the water has been removed and the pressure inside the container 1 with respect to the same equilibrium that would have been obtained without this mechanical regulation and by a hole of constant dimensions and, on the other hand, to decrease the relative variation of the total weight of the regulating member 17a and of the column of treatment liquid 2 which it supports, given the self-weight of the regulating member 17a, this regulating member 17a having the effect of regularizing the dose s distributed as the container 1 is emptied.

Le dispositif doseur 10 selon l'invention comporte, selon cette même première variante et un second aspect de l'invention, un organe de régulation 17a constitué par une pièce 19 montée mobile avec un passage 23 dans une jupe 20 attenante à la paroi transversale 11, placée dans la chambre d'air 13, terminée du côté du bord libre 7 du col 6, notamment inférieur, par un trou de décharge 18 et du côté opposé, c'est-à-dire vers le récipient 1, normalement supérieur, par le trou d'évacuation 12.The metering device 10 according to the invention comprises, according to this same first variant and a second aspect of the invention, a regulating member 17a constituted by a piece 19 movably mounted with a passage 23 in a skirt 20 adjoining the transverse wall 11 , placed in the air chamber 13, terminated on the side of the free edge 7 of the neck 6, in particular the bottom, by a discharge hole 18 and on the opposite side, that is to say towards the container 1, normally upper, through the drain hole 12.

La pièce mobile 19 comporte une paroi latérale 21 écartée de la paroi latérale 22 de la jupe 20 pour définir entre elles un passage calibré 23 pour le liquide de traitement 2.The movable part 19 has a side wall 21 spaced from the side wall 22 of the skirt 20 to define between them a calibrated passage 23 for the treatment liquid 2.

Il est prévu des saillies ou similaire 24 au voisinage du trou d'évacuation 12, de manière que le trou d'évacuation 12 reste ouvert en permanence, quelle que soit la position de la pièce mobile 19, notamment dans sa position extrême supérieure.There are provided projections or the like 24 in the vicinity of the discharge hole 12, so that the discharge hole 12 remains open permanently, regardless of the position of the movable part 19, in particular in its extreme upper position.

La jupe 20 comporte un retour inférieur 25 dans lequel est réalisé le trou de décharge 18 dans lequel coulisse librement la pièce mobile 19 sans obturer le trou de décharge 18.The skirt 20 has a lower return 25 in which the discharge hole 18 is made in which the movable part 19 slides freely without closing the discharge hole 18.

Le retour 25 a préférentiellement une forme conique, tronconique, pyramidale ou de tronc de pyramide dont la pointe est dirigée vers le bas, c'est-à-dire vers le bord libre 7 et dont la grande base est dirigée vers le haut, c'est-à-dire vers la paroi transversale 11.The return 25 preferably has a conical, frustoconical, pyramidal or truncated pyramid shape. whose tip is directed downward, that is to say towards the free edge 7 and whose large base is directed upward, that is to say towards the transverse wall 11.

Il est entendu que dans toute la description, les qualificatifs "haut", "bas", "supérieur", "inférieur" se réfèrent au récipient en position de fonctionnement, le col 6 dirigé vers le bas.It is understood that throughout the description, the qualifiers "high", "low", "upper", "lower" refer to the container in the operating position, the neck 6 directed downwards.

La jupe 20 comporte un retour supérieur 26 dans lequel est réalisé le trou d'évacuation 12.The skirt 20 has an upper return 26 in which the discharge hole 12 is made.

Le passage 23 entre la pièce mobile 19 et la jupe 20 et le trou de décharge 18 ouvert ont des dimensions de même ordre de grandeur, fonction de la tension superficielle du liquide d'entretien 2 pour déterminer le débit du liquide d'entretien 2. Le trou d'évacuation 12 est de dimension suffisantes pour alimenter de façon suffisante le passage 23 entre la pièce mobile 19 et la jupe 20. Le passage 23 a donc une dimension permettant l'évacuation d'une dose précise de liquide de traitement 2 et ultérieurment l'arrêt de l'évacuation.The passage 23 between the movable part 19 and the skirt 20 and the open discharge hole 18 have dimensions of the same order of magnitude, depending on the surface tension of the maintenance liquid 2 to determine the flow rate of the maintenance liquid 2. The discharge hole 12 is of sufficient size to supply the passage 23 between the movable part 19 and the skirt 20 in sufficient quantity. The passage 23 therefore has a dimension allowing the evacuation of a precise dose of treatment liquid 2 and subsequently stop the evacuation.

La course de déplacement axial de la pièce mobile 19 est de l'ordre de grandeur de la dimension du trou de décharge 18.The axial displacement stroke of the moving part 19 is of the order of magnitude of the dimension of the discharge hole 18.

En particulier, la dimension du trou de décharge 18 ouvert est fonction de la tension superficielle du liquide que l'on veut distribuer ainsi que du débit que l'on désire obtenir.In particular, the size of the open discharge hole 18 is a function of the surface tension of the liquid that one wants to distribute as well as the flow rate that one wishes to obtain.

La dimension du passage entre le trou de décharge 18 et l'extrémité inférieure de la pièce mobile 19 est du même ordre ou légèrement supérieur aux dimensions du passage 23 entre la pièce mobile 19 et la jupe 20.The dimension of the passage between the discharge hole 18 and the lower end of the moving part 19 is of the same order or slightly greater than the dimensions of the passage 23 between the moving part 19 and the skirt 20.

Le poids de la pièce mobile 19 est plus grand, notamment nettement plus grand, que le poids de la colonne de liquide de traitement 2 sur le trou d'évacuation 12. Par exemple, la pièce mobile a un poids de l'ordre de trois à cinq fois celui de la colonne de liquide de traitement 2 sur le trou d'évacuation 12. Cette disposition est telle que le poids total de la pièce mobile 19 et de la colonne de liquide de traitement 2 varie, de façon relative, nettement moins que s'il n'y avait pas de pièce mobile 19 d'un tel poids. Il en résulte une régulation du dosage du liquide de traitement 2 délivré.The weight of the moving part 19 is greater, in particular much greater, than the weight of the column of treatment liquid 2 on the discharge hole 12. For example, the moving part has a weight of the order of three at five times that of the column of treatment liquid 2 on the discharge hole 12. This arrangement is such that the total weight of the moving part 19 and of the column of treatment liquid 2 varies, in a relative manner, significantly less only if there were no moving part 19 of such a weight. This results in a regulation of the dosage of the treatment liquid 2 delivered.

Ainsi que cela résulte de ce qui précède, la pièce mobile 19 ne constitue pas, à proprement parler, un clapet destiné à obturer de façon hermétique le trou de décharge 18. Outre la fonction mentionnée précédemment de "tare" ajoutée au poids de la colonne de liquide de traitement 2 sur le trou d'évacuation 12, la pièce mobile 19 a pour fonction de restreindre considérablement le passage 23 entre la pièce mobile 19 et la jupe 20 jusqu'à une valeur minimale propre à arrêter l'écoulement du liquide de traitement 2 situant ainsi le point d'équilibre de la pression du récipient 1 et de celle de l'air ambiant à un niveau supérieur à la normale sans l'existence de cette pièce mobile 19 et ceci afin de régulariser les doses de liquide de traitement 2 délivrées.As follows from the above, the moving part 19 does not, strictly speaking, constitute a valve intended to hermetically seal the discharge hole 18. In addition to the previously mentioned function of "tare" added to the weight of the column of treatment liquid 2 on the discharge hole 12, the movable part 19 has the function of considerably restricting the passage 23 between the movable part 19 and the skirt 20 to a minimum value suitable for stopping the flow of the liquid from treatment 2 thus locating the equilibrium point of the pressure of the container 1 and that of the ambient air at a level higher than normal without the existence of this moving part 19 and this in order to regularize the doses of treatment liquid 2 issued.

Du fait, de ces deux fonctions distinctes mais complémentaires, la pièce mobile 19 a un effet régulateur sur les doses de liquide de traitement 2 délivrées, celles-ci étant relativement constantes du début à la fin du récipient 1. Ces doses sont, par exemple, de l'ordre de 0,125ml à 0,250ml de produit, ce qui, pour un récipient tel que celui mentionné précédemment, correspond, par un usage normal moyen, à une durée de fonctionnement de l'ordre de deux à quatre mois.Because of these two distinct but complementary functions, the moving part 19 has a regulating effect on the doses of treatment liquid 2 delivered, these being relatively constant from the start to the end of the container 1. These doses are, for example , of the order of 0.125 ml to 0.250 ml of product, which, for a container such as that mentioned above, corresponds, by average normal use, to an operating time of the order of two to four months.

La pièce mobile 19 peut prendre deux positions extrêmes : une position extrême supérieure et une position extrême inférieure. Dans la position extrême supérieure, la pièce mobile 19 est la plus rapprochée du trou d'évacuation 12 et les deux trous 12 et 18 sont ouverts. Cette position est celle qui survient lorsque pendant la première phase de fonctionnement, l'air de la chambre 13 est comprimé. Dans la position extrême inférieure, la partie extrême inférieure de la pièce mobile 19 est à l'intérieur du trou de décharge 18 sans l'obturer nécessairement et ses parois en forme de cône reposent sur les parois équivalentes du retour inférieur 25, le passage 23, aux points de contact étant réduit à une valeur si faible que, compte tenu des pressions en jeu et de la tension superficielle du liquide de traitement 2, il y ait arrêt de l'écoulement du liquide avant que la pression intérieure du récipient 1 n'ait retrouvé sa valeur initiale. Le récipient 1 reste donc toujours en légère surpression. Cette position extrême inférieure survient à la fin de la seconde phase de fonctionnement.The moving part 19 can take two extreme positions: an upper extreme position and an extreme lower position. In the upper extreme position, the movable part 19 is closest to the discharge hole 12 and the two holes 12 and 18 are open. This position is that which occurs when, during the first operating phase, the air in the chamber 13 is compressed. In the lower extreme position, the lower extreme part of the movable part 19 is inside the discharge hole 18 without necessarily closing it and its cone-shaped walls rest on the equivalent walls of the lower return 25, the passage 23 , at the contact points being reduced to a value so low that, taking into account the pressures involved and the surface tension of the treatment liquid 2, the flow of liquid is stopped before the internal pressure of the container 1 n 'has returned to its original value. The container 1 therefore always remains under slight overpressure. This lower extreme position occurs at the end of the second phase of operation.

Préférentiellement, le trou d'évacuation 12 est situé au même niveau ou au voisinage immédiat, notamment légèrement au-dessus, de la paroi 11. De plus, la jupe 20 ainsi que le retour 25 sont situés en totalité ou presque en totalité dans la chambre 13.Preferably, the discharge hole 12 is located at the same level or in the immediate vicinity, in particular slightly above, of the wall 11. In addition, the skirt 20 as well as the return 25 are located entirely or almost entirely in the room 13.

Par exemple, d'une part, la hauteur axiale H de la jupe 20 peut être de l'ordre de la moitié de l'écartement E entre la paroi 11 et le bord libre 7 et, d'autre part, le diamètre d de la jupe 20 peut être également de l'ordre de la moitié du diamètre D de la chambre 13. Enfin; l'écartement E peut être du même ordre de grandeur que le diamètre D ou légèrement supérieur. D'excellents résultats, avec le récipient 1 décrit précédemment ont été obtenus avec H, E, d, D respectivement voisins de 1,5cm ; 3cm ; 1,25cm ; 2,75cm.For example, on the one hand, the axial height H of the skirt 20 can be of the order of half the distance E between the wall 11 and the free edge 7 and, on the other hand, the diameter d of the skirt 20 can also be of the order of half the diameter D of the chamber 13. Finally; the spacing E can be of the same order of magnitude as the diameter D or slightly greater. Excellent results, with the container 1 described above, have been obtained with H, E, d, D respectively close to 1.5 cm; 3cm; 1.25 cm; 2.75cm.

Préférentiellement, la paroi 11 est un flan plan annulaire d'une pièce fixe support 27 montée dans le col 6 et comprenant une partie cylindrique extérieure 28 (de diamètre D) maintenue, notamment à force, dans le col 6 et une partie cylindrique intérieure 29 constituant la paroi externe de la jupe 20. Le retour inférieur 25 est préférentiellement formé par la pièce fixe support 27.Preferably, the wall 11 is an annular planar blank of a fixed support part 27 mounted in the neck 6 and comprising an outer cylindrical part 28 (of diameter D) held, in particular by force, in the neck 6 and an inner cylindrical part 29 constituting the external wall of the skirt 20. The lower return 25 is preferably formed by the fixed support part 27.

Une autre pièce 30 montée à force dans la pièce support 27 constitue la paroi interne de la jupe 20 et le retour supérieur 26. Cette pièce 30 est montée après insertion, dans la jupe 20 et entre les retours 25, 26 de la pièce mobile 19.Another part 30 forcibly mounted in the support part 27 constitutes the internal wall of the skirt 20 and the upper return 26. This part 30 is mounted after insertion, in the skirt 20 and between the returns 25, 26 of the movable part 19 .

La pièce 30 peut comporter une saillie annulaire extérieure 31 venant en appui sur la paroi 11 pour bloquer axialement et placer en position correcte la pièce 30 sur la pièce support 27.The part 30 may include an external annular projection 31 bearing on the wall 11 to axially lock and place the part 30 on the support part 27 in the correct position.

Selon un premier mode de réalisation, le retour supérieur 26 est sensiblement plan (en dehors des saillies 24) et perpendiculaire à l'axe du récipient 1. Selon un second mode de réalisation, le retour supérieur 26 a une forme générale conique ou pyramidale dont la pointe est dirigée vers le fond 5 et la grande base vers la pièce mobile 19.According to a first embodiment, the upper return 26 is substantially planar (apart from the projections 24) and perpendicular to the axis of the container 1. According to a second embodiment, the upper return 26 has a generally conical or pyramid shape the tip of which is directed towards the bottom 5 and the large base towards the movable part 19.

Selon un autre mode de réalisation, la pièce mobile 19 a en section droite axiale une forme limitée par une paroi latérale 21, une paroi d'extrémité supérieure transversale 32, notamment perpendiculaire à l'axe du récipient 1 et une paroi inférieure 33, notamment en forme de cône à pointe dirigée vers le bas. En section droite transversale, la pièce 19 a une forme circulaire. Selon un second mode de réalisation, la pièce mobile 19 a une forme sphérique.According to another embodiment, the movable part 19 has in axial cross section a shape limited by a side wall 21, a transverse upper end wall 32, in particular perpendicular to the axis of the container 1 and a bottom wall 33, in particular in the shape of a cone with point downwards. In cross section, the part 19 has a circular shape. According to a second embodiment, the moving part 19 has a spherical shape.

Ces deux couples de modes de réalisation décrits précédemment peuvent être combinés ensemble.These two pairs of embodiments described above can be combined together.

Ainsi que cela résulte de ce qui précède, le poids de la pièce mobile 19 sert à contrôler la surpression créée à l'intérieur du récipient 1 après son immersion de façon à agir sur le volume de la dose évacuée après chaque fonctionnement de la chasse 3.As follows from the above, the weight of the moving part 19 serves to control the overpressure created inside the container 1 after its immersion so as to act on the volume of the dose evacuated after each operation of the flush 3 .

La pièce mobile 19 permet à chaque fois que le doseur se trouve émergé de n'évacuer qu'une dose de liquide 2 correspondant à une partie seulement de la quantité d'air introduite précédemment dans la récipient 1 au moment de l'immersion du doseur.The moving part 19 allows each time that the metering device is emerged to evacuate only a dose of liquid 2 corresponding to only part of the amount of air previously introduced into the container 1 at the time of immersion of the metering device .

Le dispositif doseur 10, selon l'invention, est tel, selon une seconde variante et un premier aspect de l'invention (figures 5 et 6), qu'une partie formant pointeau 17b appartient à un organe 34 situé essentiellement entre la paroi transversale supérieure 11 et le retour inférieur 25 ; est mobile entre une position extrême inférieure (cas de figure) dans laquelle elle coopère avec le retour inférieure 25 formant siège pour fermer le trou de décharge 18 et une position supérieure (non représentée) dans laquelle elle est écartée du retour inférieur 25 pour ouvrir au moins partiellement le trou de décharge 18 ; et sur laquelle s'exerce une force verticale descendante qui est d'une part supérieure à la force maximale exercée par le liquide de traitement 2 sur le trou d'évacuation 12 et, d'autre part, inférieure à la force exercée sur le trou de décharge 18 du fait de l'eau se trouvant dans la chasse pleine via la chambre d'air 13 ; de manière que, en premier lieu, lorsque la chasse 3 est pleine, la partie formant pointeau 17b soit en position extrême inférieure du fait de la force qui s'exerce sur elle ; en second lieu, lorsque la chasse 3 se vide, cette partie formant pointeau 17b passe d'abord de sa position extrême inférieure à une position supérieure du fait que cette force est inférieure à la force exercée en sens opposé par la surpression d'air dans le récipient 1 au-dessus du liquide de traitement 2 et par le liquide de traitement soi-même, jusqu'à écoulement d'une dose de liquide de traitement 2 par le trou de décharge 18 et que cette partie formant pointeau 17b passe ensuite de cette position supérieure à sa position extrême inférieure lorsque la force exercée dans le sens opposé à la force qui s'exerce sur cette partie formant pointeau est inférieure à cette dernière force; et, en troisième lieu, lorsque la chasse 3 se remplit, cette partie formant pointeau 17b passe d'abord de sa position extrême inférieure à cette position supérieure du fait que la force exercée par l'eau de la chasse 3 est supérieure à celle exercée en sens opposé par le liquide de traitement 2, ce qui provoque le transfert d'air de la chambre d'air 13 à l'intérieur du récipient 1 au-dessus du liquide de traitement 2 via le trou de décharge 18 le passage 23 et le trou d'évacuation 12 en participant ainsi à la création de ladite surpression d'air et cette partie formant pointeau 17b soit ensuite passée de cette position supérieure à sa position extrême inférieure, du fait de la force qui s'exerce sur ladite partie 17b formant pointeau lorsque les surpressions d'air à l'intérieur du récipient 1 au-dessus du liquide de traitement 2 et à l'intérieur de la chambre d'air 13 sont substantiellement égales.The metering device 10 according to the invention is such, according to a second variant and a first aspect of the invention (FIGS. 5 and 6), that a part forming a needle 17b belongs to a member 34 located essentially between the transverse wall upper 11 and lower return 25; is movable between an extreme lower position (case) in which it cooperates with the lower return 25 forming a seat to close the discharge hole 18 and an upper position (not shown) in which it is moved away from the lower return 25 to open to the at least partially the discharge hole 18; and on which a downward vertical force is exerted which is on the one hand greater than the maximum force exerted by the treatment liquid 2 on the evacuation hole 12 and, on the other hand, less than the force exerted on the hole discharge 18 due to the water in the full flush via the air chamber 13; so that, firstly, when the flush 3 is full, the needle portion 17b is in the lower extreme position due to the force exerted on it; secondly, when the flush 3 becomes empty, this needle portion 17b first passes from its extreme lower position to a higher position because this force is less than the force exerted in the opposite direction by the air overpressure in the container 1 above the treatment liquid 2 and by the treatment liquid itself, until a dose of treatment liquid 2 has flowed through the discharge hole 18 and this portion forming needle 17b then passes from this position greater than its extreme lower position when the force exerted in the opposite direction to the force exerted on this needle portion is less than the latter force; and, thirdly, when the flush 3 fills, this needle portion 17b first passes from its extreme lower position to this upper position because the force exerted by the water in the flush 3 is greater than that exerted in the opposite direction by the treatment liquid 2, which causes the transfer of air from the air chamber 13 inside the container 1 above the treatment liquid 2 via the discharge hole 18 the passage 23 and the discharge hole 12 thereby participating in the creation of said air overpressure and this needle portion 17b is then passed from this upper position to its lower extreme position, due to the force exerted on said part 17b forming a needle when the air pressures inside the container 1 above the treatment liquid 2 and inside the air chamber 13 are substantially equal.

Le dispositif doseur 10, selon l'invention est tel, selon cette même seconde variante, un second aspect de l'invention et un premier mode de réalisation possible, (figure 5) que la partie formant pointeau 17b forme un ensemble monobloc, avec l'organe 34 qui est rigide et indéformable logé à coulissement axial dans une chemise fixe 35 comportant une cloison transversale d'extrémité supérieure 36 et une cloison latérale 37 terminée par une ouverture inférieure 38. Dans cette première variante, ladite force exercée sur la partie formant pointeau 17b, en l'occurrence, l'organe mobile 34 est son propre poids.The metering device 10, according to the invention is such, according to this same second variant, a second aspect of the invention and a first possible embodiment (FIG. 5) that the needle portion 17b forms a one-piece assembly, with the member 34 which is rigid and undeformable housed in axial sliding in a fixed jacket 35 comprising a transverse partition of upper end 36 and a lateral partition 37 terminated by a lower opening 38. In this first variant, said force exerted on the forming part needle 17b, in this case, the movable member 34 is its own weight.

De plus, ces deux aspects de l'invention dans cette seconde variante se combinent l'un avec l'autre.In addition, these two aspects of the invention in this second variant combine with each other.

On décrit maintenant plus en détail la structure du dispositif doseur 10 en se référant à la figure 5.The structure of the metering device 10 will now be described in more detail with reference to FIG. 5.

Le passage 23 du liquide de traitement est défini d'une part par l'écartement radial existant entre la jupe 20 et la cloison latérale 37 en regard et, d'autre part, par l'écartement axial existant entre le retour inférieur 25 et la cloison latérale 37, l'écartement radial étant en communcation avec l'écartement axial.The passage 23 of the treatment liquid is defined on the one hand by the radial spacing existing between the skirt 20 and the side wall 37 opposite and, on the other hand, by the axial spacing existing between the lower return 25 and the lateral partition 37, the radial spacing being in communication with the axial spacing.

La chemise 35 comporte des saillies 39 attenantes à la cloison latérale 37 et dirigées vers l'extérieur ayant pour fonctions, d'une part, de maintenir en place, enfoncée à force, la chemise 35 dans la jupe 20 et, d'autre part, de ménager entre la cloison latérale 37 et la jupe 20 les écartements radial et axial constituant le passage 23 du liquide de traitement. Par exemple, les saillies 39 sont au moins au nombre de trois, notamment quatre ou plus, réparties régulièrement autour de l'axe 12 du dispositif doseur 10 et ont une forme allongée axialement, notamment s'étendant sur toute la hauteur axiale de la cloison latérale 37.The jacket 35 has projections 39 adjoining the lateral partition 37 and directed towards the outside, having the functions, on the one hand, of keeping the jacket 35 in the skirt 20 in place, and, on the other hand , to provide between the lateral partition 37 and the skirt 20 the radial and axial spacings constituting the passage 23 of the treatment liquid. For example, the projections 39 are at least three in number, in particular four or more, distributed regularly around the axis 12 of the metering device 10 and have an axially elongated shape, in particular extending over the entire axial height of the partition. lateral 37.

La cloison transversale d'extrémité supérieure 36 et la paroi transversale supérieure 11 sont au moins sensiblement coplanaires et planes, le trou d'évacuation 12 étant ménagé entre elles. Le trou d'évacuation 12 a donc une forme générale d'anneau.The upper end transverse wall 36 and the upper transverse wall 11 are at least substantially coplanar and planar, the discharge hole 12 being formed between them. The discharge hole 12 therefore has the general shape of a ring.

L'ouverture inférieure 38 et le trou de décharge 18 sont situés en regard et à proximité l'un de l'autre, le diamètre de l'ouverture inférieure 38 étant plus grand (notamment nettement plus grand, que celui du trou de décharge 18).The lower opening 38 and the discharge hole 18 are located opposite and close to each other, the diameter of the lower opening 38 being larger (in particular much larger, than that of the discharge hole 18 ).

Par ailleurs, l'aire du trou de décharge 18 est supérieure, notamment nettement supérieure à l'aire du trou d'évacuation 12. Par exemple, l'aire du trou de décharge 18 est de l'ordre de 2 à 3 fois environ l'aire du trou d'évacuation 12.Furthermore, the area of the discharge hole 18 is greater, in particular much greater than the area of the discharge hole 12. For example, the area of the discharge hole 18 is around 2 to 3 times the area of the discharge hole 12.

Le retour 25 a une forme tronconique à pointe dirigée vers le bas et dont l'angle d'ouverture est compris entre 107 degrés et 146 degrés environ, plus spécialement entre 114 degrés et 140 degrés environ, notamment est égal ou voisin de 127 degrés.The return 25 has a frustoconical shape with a point directed downwards and whose opening angle is between 107 degrees and 146 degrees approximately, more especially between 114 degrees and 140 degrees approximately, in particular is equal to or close to 127 degrees.

L'organe mobile 34 est limité par une face transversale supérieure 40, une face latérale 41 et une face transversale inférieure 42, la face latérale 41 coopérant avec la cloison latérale 37 avec jeu radial 43 de manière à permettre à la fois le guidage axial et le coulissement axial de l'organe mobile 34.The movable member 34 is limited by an upper transverse face 40, a lateral face 41 and a lower transverse face 42, the lateral face 41 cooperating with the lateral partition 37 with radial clearance 43 so as to allow both axial guidance and the axial sliding of the movable member 34.

L'organe mobile 34 saille, par sa face transversale inférieure 42, de l'ouverture 38 de la chemise 35.The movable member 34 projects, through its lower transverse face 42, from the opening 38 of the jacket 35.

La face transversale inférieure 25 a, au moins sensiblement, une forme conique dont la pointe 44 saille en dessous du trou de décharge 18.The lower transverse face 25 has, at least substantially, a conical shape, the point 44 of which protrudes below the discharge hole 18.

L'angle d'ouverture de la face transversale inférieure 42 est compris entre 81 degrés et 111 degrés environ, notamment est égal ou de l'ordre de 96 degrés.The opening angle of the lower transverse face 42 is between 81 degrees and 111 degrees approximately, in particular is equal to or of the order of 96 degrees.

La face transversale inférieure 42 forme à son extrémité une pointe 44 renflée.The lower transverse face 42 forms at its end a bulged point 44.

En position extrême inférieure, l'organe mobile 34 repose sur le retour inférieur 25, notamment au bord du trou de décharge 18. Dans cette position, les sommets réel ou fictif respectivement de l'organe mobile 34 et du retour inférieur 25, conique et tronconique, sont confondus ou proches, l'angle d'ouverture du retour inférieur 25 étant plus grand que celui de la face transversale inférieure 42 de manière à assurer, d'une part un bon contact de l'organe mobile 34 sur le bord du trou de décharge 18 et, d'autre part, l'existence, à proximité de la face latérale 41, d'un jeu 45 entre la face transversale inférieure 42 et le retour inférieur 25, jeu 45 en communication avec le passage 23 par l'écartement axial mentionné, ce qui permet au liquide de traitement 2 d'agir sur l'organe mobile, dans le sens de son soulèvement.In the extreme lower position, the mobile member 34 rests on the lower return 25, in particular at the edge of the discharge hole 18. In this position, the real or fictitious vertices respectively of the mobile member 34 and of the lower return 25, conical and frustoconical, are confused or close, the opening angle of the lower return 25 being greater than that of the lower transverse face 42 so as to ensure, on the one hand, good contact of the movable member 34 on the edge of the discharge hole 18 and, on the other hand, the existence, near the lateral face 41, of a clearance 45 between the lower transverse face 42 and the lower return 25, clearance 45 in communication with the passage 23 through the 'mentioned axial spacing, which allows the treatment liquid 2 to act on the movable member, in the direction of its lifting.

Préférentiellement, le chant d'extrémité inférieur 46 de la cloison latérale 37 autour de l'ouverture 38 est biseauté de manière à être au moins sensiblement parallèle au retour inférieur 25.Preferably, the lower end edge 46 of the lateral partition 37 around the opening 38 is bevelled so as to be at least substantially parallel to the lower return 25.

En position extrême supérieure, l'organe 34, notamment sa face transversale inférieure 42, est écarté du retour inférieur 25, notamment au bord du trou de décharge 18 d'une distance égale ou de l'ordre de l'écartement axial entre le retour inférieur 25 et la cloison latérale 37, plus précisément son chant 46.In the extreme upper position, the member 34, in particular its lower transverse face 42, is spaced from the lower return 25, in particular at the edge of the discharge hole 18 by an equal distance or on the order of the axial spacing between the return lower 25 and the side wall 37, more precisely its edge 46.

La course du coulissement de l'organe mobile 34 est faible, mais nécessaire et suffisante pour assurer le fonctionnement optimal du dispositif doseur 10.The sliding stroke of the movable member 34 is small, but necessary and sufficient to ensure the optimal operation of the metering device 10.

L'organe mobile 34 et/ou la chemise 35 est réalisé en un matériau rigide, notamment le polyacétal ou équivalent.The movable member 34 and / or the jacket 35 is made of a rigid material, in particular polyacetal or equivalent.

Dans une forme préférentielle de réalisation, le retour 25, la paroi transversale supérieure 11 et la jupe 20 sont monoblocs et font partie d'une pièce 27 comportant également une partie cylindrique extérieure 28.In a preferred embodiment, the return 25, the upper transverse wall 11 and the skirt 20 are in one piece and form part of a part 27 also comprising an external cylindrical part 28.

La pièce 27 est réalisée en un matériau presen- tant une certaine souplesse pour faciliter l'étanchéité avec le col du récipient et/ou avec l'organe mobile 34.The part 27 is made of a material with a certain flexibility to facilitate sealing with the neck of the container and / or with the movable member 34.

Ainsi que cela résulte de ce qui précède, l'organe mobile 34 a une forme générale cylindrique avec une partie inférieure 42 constituant la partie formant pointeau 17b conique ou pseudo-conique. Il est monté coulissant avec faible jeu et faible course dans la chemise 35 qui,en section axiale, a une forme générale de U renversé de mainère que la partie inférieure 42 conique ou pseudo-conique saille de l'ouverture 38 du U. La chemise 35 est elle-même montée, grâce aux saillies 39, fixe dans la jupe 20 formant cheminée. La pièce 27 a une forme générale de double U à savoir un grand U renversé défini en ce qui concerne l'âme par la paroi transversale supérieure 11 et en ce qui concerne les ailes par la partie cylindrique extérieure 28 et un petit U placé dans le grand U défini en ce qui concerne l'âme, percée, par le retour inférieur 25 et en ce qui concerne les ailes par la jupe 20 reliée à l'âme du grand U.As follows from the above, the movable member 34 has a generally cylindrical shape with a lower part 42 constituting the needle-forming part 17b conical or pseudo-conical. It is slidably mounted with little play and short stroke in the jacket 35 which, in axial section, has a general shape of an inverted U that the conical or pseudo-conical lower part 42 projects from the opening 38 of the U. The shirt 35 is itself mounted, thanks to the projections 39, fixed in the skirt 20 forming a chimney. The part 27 has a general shape of double U, namely a large inverted U defined as regards the core by the upper transverse wall 11 and as regards the wings by the external cylindrical part 28 and a small U placed in the large U defined as regards the core, pierced, by the lower return 25 and as regards the wings by the skirt 20 connected to the soul of the large U.

Le poids de l'organe mobile 34 est par exemple, d'une part, légèrement supérieur à la force maximale exercée par le liquide de traitement 2 sur le trou d'évacuation 12 et/ou, d'autre part, nettement inférieur à la force maximale exercée par l'eau de la chasse sur le trou de décharge 18 via la chambre d'air 13.The weight of the movable member 34 is for example, on the one hand, slightly greater than the maximum force exerted by the treatment liquid 2 on the evacuation hole 12 and / or, on the other hand, significantly less than the maximum force exerted by the flushing water on the discharge hole 18 via the air chamber 13.

Le dispositif doseur 10 selon l'invention est tel, selon un autre aspect de l'invention de cette même seconde variante et le second mode de réalisation préférentiel (figure 6), que la partie formant pointeau 17b constitue la partie extrême inférieure d'un organe 47 monobloc dont la partie extrême supérieure 48 est fixe et présente une forme générale voisine de celle de la chemise fixe 35 précédemment décrite, à l'exception notable de l'ouverture inférieure 38 absente dans ce mode de réalisation.The metering device 10 according to the invention is such, according to another aspect of the invention of this same second variant and the second preferred embodiment (FIG. 6), that the needle-forming part 17b constitutes the lower end part of a one-piece member 47 whose upper end portion 48 is fixed and has a general shape close to that of the fixed jacket 35 previously described, with the notable exception of the lower opening 38 absent in this embodiment.

De plus, un organe élastiquement déformable 49 agit sur la partie formant pointeau 17b pour produire sur cette partie 17b, la force nécessaire, ainsi qu'il est décrit plus haut. Par opposition au premier mode de réalisation où ladite force résulte du poids de l'organe mobile 34 pesant, ladite force est, dans ce second mode essentiellement ou substantiellement le résultat d'une force appliquée extérieure.In addition, an elastically deformable member 49 acts on the needle portion 17b to produce on this portion 17b, the necessary force, as described above. In contrast to the first embodiment where said force results from the weight of the movable member 34 weighing, said force is, in this second mode, essentially or substantially the result of an external applied force.

Dans une forme possible de réalisation, l'organe 47 comporte une partie, intermédiaire de raccordement 50 interposée entre la partie formant pointeau 17b et la partie extrême supérieure 48, cette partie intermédiaire de raccordement 50 étant. déformable, de manière qu'un déplacement relatif axial soit possible entre les parties 17b et 48, donc le déplacement axial de la partie 17b, la partie 48 étant immobilisée. Cette déformabilité de la partie intermédiaire 50 peut être réalisée de toute façon appropriée notamment par un affaiblissement de l'épaisseur de l'organe 47.In a possible embodiment, the member 47 comprises a part, intermediate connection 50 interposed between the needle-forming part 17b and the upper end part 48, this intermediate connection part 50 being. deformable, so that an axial relative displacement is possible between the parts 17b and 48, therefore the axial displacement of the part 17b, the part 48 being immobilized. This deformability of the intermediate part 50 can be achieved in any suitable way, in particular by weakening the thickness of the member 47.

L'organe 47 est, dans une forme possible de réalisation creux, de manière à définir une cavité centrale 51 fermée hermétiquement dans laquelle est logé l'organe 49.The member 47 is, in a possible hollow embodiment, so as to define a hermetically closed central cavity 51 in which the member 49 is housed.

L'organe 49 est par exemple un ressort hélicoïdal agissant de manière à exercer une force dans le sens d'une expansion.The member 49 is for example a helical spring acting so as to exert a force in the direction of expansion.

L'organe 47 est, dans une forme possible de réalisation, tel que la cloison transversale d'extrémité supérieure 36 est agencée amovible mais blocable hermétiquement sur la partie extrême supérieure 48 de l'organe 47, par exemple encliquetable au moyen de saillies et creux 52.The member 47 is, in a possible embodiment, such that the transverse partition at the upper end 36 is arranged removable but hermetically lockable on the upper upper part 48 of the member 47, for example snap-in by means of projections and recesses 52.

Dans la forme de réalisation décrite, seule la partie intermédiaire de raccordement 50 est déformable, la partie formant pointeau 17b étant indéformable, notamment suffisamment épaisse, en particulier en formant, à l'intérieur de la cavité 51 un siège pour le ressort 49.In the embodiment described, only the intermediate connection part 50 is deformable, the needle part 17b being undeformable, in particular sufficiently thick, in particular by forming, inside the cavity 51 a seat for the spring 49.

Dans cette forme de réalisation, l'angle d'ouverture de la face transversale inférieure 42 est égal ou de l'ordre de 120°.In this embodiment, the opening angle of the lower transverse face 42 is equal to or of the order of 120 ° .

Le dispositif doseur selon l'invention permet de distribuer des doses constantes ou sensiblement constantes de liquide de traitement. Ces doses peuvent varier, par exemple, de 0,10ml à 0,25ml chacune. Le récipient 1 peut permettre la distribution de 2 500 doses ou plus. Les paramètres physiques d'un dispositif doseur (notamment dimensions, poids, force, etc ...) sont déterminés par l'homme du métier selon la dose souhaitée.The metering device according to the invention makes it possible to dispense constant or substantially constant doses of treatment liquid. These doses can vary, for example, from 0.10ml to 0.25ml each. Container 1 can accommodate 2,500 or more doses. The physical parameters of a metering device (in particular dimensions, weight, force, etc.) are determined by a person skilled in the art according to the desired dose.

Quelle que soit la variante de réalisation, la superficie du trou d'évacuation 12 est égale ou légèrement supérieure à celle du trou de décharge 10. De plus, la course de l'organe 17, 19 est fonction de la superficie d'écoulement dans le passage 23 afin d'éviter que l'ouverture du trou de décharge soit plus grande que la superficie d'écoulement dans le passage 23.Whatever the variant, the area of the discharge hole 12 is equal to or slightly greater than that of the discharge hole 10. In addition, the stroke of the member 17, 19 is a function of the area of flow in passage 23 in order to prevent the opening of the discharge hole from being larger than the flow area in passage 23.

Claims (34)

1. Container for distribution of doses of a treatment liquid (2) comprising a nozzle (10) fitted to the neck (6), the container (1) being designed to function with the neck (6) facing downwards submerging and emerging alternately in a volume of water (15), notable a lavatory cistern (3), the nozzle device (10) being of the type comprised mainly of a transparent partition (11) at a distance from the free edge (7) of the neck (6) thus forming an air compartment (13) and an outlet orifice (12) for the treatment liquid (2), drilled in the partition (11), the nozzle device (10) functioning in the first phase by the build-up of an air overpressure in the container (1) as the level (16) rises in the volume of water (15) above the level of the neck (6), due to the formation in the air compartment (13) of a volume of air separated from the ambient atmosphere by the volume of water (15) then by its compression and finally its expulsion into the container (1) via the outlet orifice (12) and, in the second phase, as the level (16) of the volume of water (15) descends below the level of the neck (6) due to the reduction in the air overpressure and expulsion of the treatment liquid (2) via the outlet orifice (12), resulting from the connection of the compartment (13) with the ambient atmosphere, until the relative pressures in relation to the surface tension of the treatment liquid cut off the treatment liquid (2) flow, characterised by the nozzle device (10) which is fitted with a mechanical, moving, regulation system (17), functioning mainly due to gravity, and whose functions are, on the one hand, to reduce the opening of the passage (23) communicating with a discharge orifice (18) during the second phase of the water level descent (16) and treatment liquid (2) discharge and, on the other hand, to reduce the relative variation in the total weight of the regulation system (17) and the column of treatment liquid (2) it supports, due to the weight of the regulation system (17) itself, this regulation system being used to provide an evenly distributed dose as the container (1) is gradually emptied.
2. Container for distribution of doses of a treatment liquid (2) comprising a nozzle (10) fitted to the neck (6), the container (1) being designed to function with the neck (6) facing downwards submerging and emerging alternately in a volume of water (15), notable a lavatory cistern (3), the nozzle device (10) being of the type comprised mainly of a transparent partition (11) at a distance from the free edge (7) of the neck (6) thus forming an air compartment (13) and an outlet orifice (12) for the treatment liquid (2) drilled in the partition (11), the nozzle device (10) functioning in the first phase by the build-up of an air overpressure in the container (1) as the level (16) rises in the volume of water (15) above the level of the neck (6), due to the formation in the air compartment (13) of a volume of air separated from the ambient atmosphere by the volume of water (15) then by its compression and finally its expulsion into the container (1) via the outlet orifice (12) and, in the second phase, as the level (16) of the volume of water (15) descends below the level of the neck (6) due to the reduction in the air overpressure and expulsion of the treatment liquid (2) via the outlet orifice (12), resulting from the connection of the compartment (13) with the ambient atmosphere, until the relative pressures in relation to the surface tension of the treatment liquid cut off the treatment liquid (2) flow, characterised by the nozzle device (10) which is fitted with a mechanical, moving, regulation system (17), consisting of a part (19) mounted mobile in a mantle (20) adjacent to the sidewall (11), located in the air compartment (13), terminating at the open end (7) of the neck (6), normally the lower, by the discharge orifice (18) and at the other end, that is to say, the container end (1), normally the upper, by the outlet orifice (12).
3. Container according to claim 2, characterised in that the moving part (19) which has a sidewall (21) at a distance from the sidewall (22) of the mantle (20) to describe between the two calibrated passage (23) for the treatment liquid (2).
4. Container according to any one of claims 2 and 3, characterised in that it has protrusions or similar (24) in proximity to the outlet orifice (12), so that the outlet orifice (12) continually remains open, whatever the position of the moving part (19), notably in its extreme up position.
5. Container according to any one of claims 2 to 4 characterised in that the mantle (20) has a lower lip (25) in which the discharge orifice (18) is located in which the lower part of the moving part (19) slides without blanking the discharge hole (18).
6. Container according to any one of claims 2 to 5, characterised in that the mantle (20) has an upper lip (26) in which the outlet orifice (12) is located.
7. Container according to any one of claims 2 to 6, characterised in that the moving part (19) and the mantle (20) have equal sidewalls, the passage (23) being reduced to a small dimension when the moving part (19) is in the extreme lower position.
8. Container according to any one of claims 2 to 7, characterised in that the axial travel of the moving part (19) is of the magnitude of the dimension of the passage (23) between the moving part (19) and the mantle (20).
9. Container according to any one of claims 2 to 8, characterised in that the fact that the dimension of the passage between the discharge orifice (18) and the lower extremity of the moving part (19) is of the same size or slightly greater than the dimensions of the passage (23) between the moving part (19) and the mantle (20).
10. Container according to any one of claim 2 to 9, characterised in that the weight of the moving part (19) is greater, notably appreciably greater, than the weight of the column of treatment liquid (2) on the outlet orifice (12).
11. Container according to any one of claims 2 to 10, characterised in that the moving part (19) has, in the straight axial section, a shape limited by a sidewall (21) an upper horizontal end-piece (32) and a lower endpiece (33) notably in the shape of a cone with the point facing downwards.
12. Container according to any one of claims 2 to 11, characterised in that it has a fixed support piece (27) comprising the side (11) a cylindrical external part (28) and an internal cylindrical part (29), another part (30) being fitted in the support piece (27) and forming the inner wall of the mantle (20) and the upper lip (26).
13. Container according to any one of claims 2 to 12, characterised in that the upper lip (26) is flat and perpendicular to the container axis (1).
14. Container according to any one of claims 2 to 12, characterised in that the upper lip (26) is of a generally tapered or pyramid shape.
15. Container according to any one of claims 2 to 14, characterised in that the weight of the moving part (19) is used to control the overpressure set up inside the container (1) after its immersion in such a way that it acts upon the volume of dose expelled after each time the cistern (3) functions.
16. Container according to any one of claims 2 to 15, characterised in that the moving part (19) enables each time the nozzle emerges to only expel a corresponding dose of liquid (2) based solely on the quantity of air ingressed beforehand into the container (1) during immersion of the nozzle.
17. Container for distribution of doses of a treatment liquid (2) comprising a nozzle (10) fitted to the neck (6), the container (1) being designed to function with the neck (6) facing fownwards submerging and emerging alternately in a volume of water (15), notable a lavatory cistern (3), being full and empty respectively, the nozzle device (10) being of the type comprised mainly of an upper horizontal end- piece (11) fixed away from the free lower edge (7) of the neck (6) thus forming an air compartment (13) and drilled with an outlet orifice (12) for the treatment liquid (2); a fixed lower lip (25) away from the lower free end (7) of the neck (6) and drilled with a discharge orifice (18) for the treatment liquid axially at a distance from the outlet orifice (12); a fixed mantle (20) connecting the upper horizontal endpiece (11) and the lower lip (25); a passage (23) for the treatment liquid (2) between the outlet orifice (12) and the discharge orifice (18), along the mantle (20); and a part forming an axially sliding needle-valve (17b) and designed to marry the discharge orifice (18), characterised by the part forming the needle-valve (17b) belonging to a component (34, 47) located essentially between the upper horizontal end- piece (11) and the lower lip (25); moving between an extreme bottom position in which it marries the lower lip (25) forming a seat in order to blank the discharge orifice (18) and an upper position in which is a away from the lower lip (25) in order to at least partially open the discharge orifice (18); and to which a vertical descending load is exerted which is on the one hand greater than the maximum load exerted by the treatment liquid (2) on the outlet orifice (12) and, on the other hand, lower than the load exerted on the discharge orifice (18) due to the water in the cistern via the air compartment (13); in such a way that firstly, when the cistern is full, the part forming the needle-valve (17b) is in the extreme bottom position due to the load exerted on it, and secondly, when the cistern empties, the part forming the needle-valve (17b) firstly moves from its extreme bottom position to the upper position since the load is smaller than the load exerted in the opposite direction due to the air overpressure in the container above the treatment liquid (2) and by the treatment liquid (2) itself, until a dose of treatment liquid (2) runs out through the discharge orifice (18) and the part forming the needle-valve (17b) then moves from this upper position to its extreme bottom position when the load exerted in the direction opposite to the load exerted on this part forming the needle-valve (17b) is lower than the latter load; and, thirdly, when the cistern fills, this part forming the needle-valve (17b) first of all moves from its extreme bottom position to the top position due to the fact that the load exerted by the cistern water is higher than that exerted in the opposite direction by the treatment liquid (2), which causes the air in the air compartment (13) to be transferred into the container (1) above the treatment liquid (2) via the discharge orifice (18), the passage (23) and the outlet orifice (12) thus contributing to the said air overpressure and the part forming the needle-valve (17b) then moves from this top position to its extreme bottom position, due to the load exerted on the said part forming the needle-valve (17b) when the air overpressures inside the container (1) above the treatment liquid (2) and inside the air compartment (13) are substantially equal.
18. Container according to claim 17, characterised in that the load exerted on the part forming the needle-valve (17b) results from its own weight.
19. Container according to claim 18, characterised in that the load exerted on the part forming the needle-valve (17b) results from the application of an external applied load by means of a flexibly distortable part (49).
20. Container according to any one of claims 17 to 19, characterised in that it functions using overpressure.
21. Container according to any one of claims 17 to 20, characterised in that the cross-section of the discharge orifice (18) is greater, notably much greater than the cross-section of the outlet orifice (12) cross-section.
22. Container for distribution of doses of a treatment liquid (2) comprising a nozzle device (10) fitted to the neck (6), the container (1) being designed to function with the neck (6) facing downwards submerging and emerging alternately in a volume of water, notably a lavatory cistern, being full and empty respectively, the nozzle device (10) being of the type comprised mainly of an upper horizontal end- piece (11) fixed away from the free lower edge (7) of the neck (6) thus forming an air compartment (13) and drilled with an outlet orifice (12) for the treatment liquid (2); a fixed lower lip (25) away from the lower free edge (7) of the neck (6) and drilled with a treatment liquid discharge orifice (18) located axially away from the outlet orifice (12); a fixed mantle (20) connecting the upper horizontal end-piece (11) and the lip (25); a passage (23) for the treatment liquid (2) between the outlet orifice (12) and the discharge orifice (18), along the mantle (20); and a part forming an axially moving needle-valve (17b) and designed to marry the discharge orifice (18), characterised in that the part forming the needle-valve (17b) is mounted to slide axially in relation to a liner (35) which has an upper horizontal end-piece (36) and a sidewall (37).
23. Container in accordance with claim 22, characterised in that the liner (35) has protrusions (39) adjacent to the sidewall (37) which point outwards and whose purpose, on the one hand, is to hold in position, forced in, the liner (35) in the mantle (20), and, on the other hand, form between the sidewall (37) and the mantle (20) the radial and axial gaps forming the passage (23).
24. Container according to any of claims 22 and 23, characterised in that the upper horizontal end-piece (36) and the mantle upper horizontal section (11) are, at least very close to on the same place.
25. Container according to any one of claims 22 to 24, characterised in that the outlet orifice (12) is in the general shape of a ring.
26. Container according to any one of claims 22 to 25, characterised in that the lower lip (25) is in the form of a truncated cone pointing downwards.
27. Container according to any one of claims 22 to 26, characterised in that the lower horizontal surface (42) is, at least more or less, in the shape of a cone the point (44) of which protrudes below the discharge orifice (18).
28. Container according to one of claims 22 to 26, characterised in that the lower horizontal surface (42) forms at its end a bulge-shaped point (44).
29. Container according to one of claims 22 to 27, characterised in that in the top position, the part forming the needle-valve (17b) is free of the lip (25), notably from the edge of the discharge orifice (18).
30. Container according to any one of claims 22 to 28, characterised in that the lip (25), the upper horizontal end-piece (11) and the mantle (20) are monobloc and form a single piece (27) which also comprises a cylindrical part (28).
31. Container according to claim 30, characterised in that the piece (27) is in a material which has a certain flexibility to facilitate the seal with the container neck and/or with the moving device.
32. Container according to any one of claims 22 to 31, characterised in that the part forming the needle-valve (17b) forms a monobloc and substantially rigid and undistortable assembly with the device (34) which is housed and slides axially in the fixed lining (35) having a lower opening (38).
33. Container according to any one of claims 22 to 31, characterised in that the part forming a needle-valve (17b) constitutes the extreme bottom part of a monobloc device (47) the top end of which (48) is fixed, an intermediate part (50) linking the two parts being distortable with a flexibly distortable device (49) acting upon the part forming the needle-valve (17b).
34. Container according to any one of claims 22 to 31 and 33, characterised in that the device (47) has a cavity (51) in which the flexibly distortable device (49) is located, closed off a removable but lockable piece (36).
EP87402465A 1986-11-03 1987-11-02 Container for dispensing doses of a treatment liquid Expired - Lifetime EP0270409B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87402465T ATE52291T1 (en) 1986-11-03 1987-11-02 CONTAINER FOR DOSING TREATMENT LIQUID.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR8615276A FR2606053B1 (en) 1986-11-03 1986-11-03 CONTAINER FOR DISPENSING DOSES OF TREATMENT LIQUID
FR8615276 1986-11-03
FR8706965 1987-05-19
FR8706965A FR2615485B1 (en) 1987-05-19 1987-05-19 DOSING CONTAINER FOR TREATMENT LIQUID

Publications (2)

Publication Number Publication Date
EP0270409A1 EP0270409A1 (en) 1988-06-08
EP0270409B1 true EP0270409B1 (en) 1990-04-25

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EP87402465A Expired - Lifetime EP0270409B1 (en) 1986-11-03 1987-11-02 Container for dispensing doses of a treatment liquid

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US (1) US5038417A (en)
EP (1) EP0270409B1 (en)
DE (1) DE3762437D1 (en)

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EP1386040B1 (en) 2001-05-11 2005-10-12 S. C. Johnson & Son, Inc. Down-stroke dispenser
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Publication number Publication date
US5038417A (en) 1991-08-13
DE3762437D1 (en) 1990-05-31
EP0270409A1 (en) 1988-06-08

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