EP0546898B1 - Nachfüllbare Vorrichtung zum Sprühen einer Flüssigkeit - Google Patents

Nachfüllbare Vorrichtung zum Sprühen einer Flüssigkeit Download PDF

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Publication number
EP0546898B1
EP0546898B1 EP92403276A EP92403276A EP0546898B1 EP 0546898 B1 EP0546898 B1 EP 0546898B1 EP 92403276 A EP92403276 A EP 92403276A EP 92403276 A EP92403276 A EP 92403276A EP 0546898 B1 EP0546898 B1 EP 0546898B1
Authority
EP
European Patent Office
Prior art keywords
neck
plug
tank
pump
ring
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
EP92403276A
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English (en)
French (fr)
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EP0546898A1 (de
Inventor
Yves Privas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CONCEPTAIR BV
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CONCEPTAIR BV
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Filing date
Publication date
Application filed by CONCEPTAIR BV filed Critical CONCEPTAIR BV
Publication of EP0546898A1 publication Critical patent/EP0546898A1/de
Application granted granted Critical
Publication of EP0546898B1 publication Critical patent/EP0546898B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0008—Sealing or attachment arrangements between sprayer and container
    • B05B11/0013—Attachment arrangements comprising means cooperating with the inner surface of the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0097—Means for filling or refilling the sprayer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/02—Membranes or pistons acting on the contents inside the container, e.g. follower pistons
    • B05B11/026—Membranes separating the content remaining in the container from the atmospheric air to compensate underpressure inside the container
    • B05B11/027—Membranes separating the content remaining in the container from the atmospheric air to compensate underpressure inside the container inverted during outflow of content
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/02—Membranes or pistons acting on the contents inside the container, e.g. follower pistons
    • B05B11/028—Pistons separating the content remaining in the container from the atmospheric air to compensate underpressure inside the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B05B11/1016—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element
    • B05B11/1018—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element and the controlling element cooperating with means for opening or closing the inlet valve
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1043—Sealing or attachment arrangements between pump and container
    • B05B11/1046—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container
    • B05B11/1047—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container the pump being preassembled as an independent unit before being mounted on the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1052—Actuation means

Definitions

  • the present invention relates to a rechargeable spraying device for a fluid substance.
  • the invention relates to a device comprising a reservoir of fluid substance to be sprayed, a spray pump mounted on said reservoir, and an actuation head comprising automatic actuation means for actuating the pump.
  • Document EP-A-0 401 060 discloses such a device. Because the actuator head is expensive, this device must be rechargeable, which implies that the fluid reservoir and the pump which is attached to it can be dismantled to recharge the device. It is possible to simply replace both the tank and the pump, by a full tank with another pump mounted on it, and to mount the full tank on the actuation head.
  • the present invention therefore aims to provide a device of the type mentioned above, in which the spray pump can be reused on several successive tanks, ensuring good operating reliability, and without posing any difficulties for the user to disassembly of the pump from the empty tank and reassembly on the full tank.
  • the dose emitted on each actuation depends on the stroke of the piston, which may be small.
  • the automatic means for actuating the pump comprise an actuating member which presses on the pusher of the pump to actuate the pump, and which moves between a predetermined high position and a low position
  • the invention also aims the pump is positioned axially with great precision in relation to the head.
  • the stroke of the piston is approximately 2.47 mm.
  • the present invention therefore relates to a rechargeable device for spraying a fluid substance, comprising an actuating head and a removable reservoir containing said fluid substance,
  • the actuation head comprises an actuator movable between a predetermined high position and a low position, said actuation head having means for moving said actuating member between its high position and its low position, in which the removable reservoir has a neck in which a pump is engaged, said pump having a hollow pump body which defines a cylindrical pump chamber filled with said substance and in which slides a piston extended axially outward from the pump body by a hollow actuating rod through which said fluid substance leaves the pump, said pump chamber being in communication with said fluid substance contained in the reservoir, in which a pusher provided with a lateral outlet nozzle is fixed to the actuating rod of the pump, and said actuating member presses on the pusher to actuate the pump, characterized in that the neck of the reservoir has an attached cap on which the pump is fixed, the plug is attached to the neck, the device further comprises angular positioning means for positioning said lateral nozzle angularly relative to the actuation head, and precise axial positioning means for positioning the pump at a determined distance from said means for
  • the pump operates with air intake and has a lateral air intake orifice
  • the neck of the tank has a central duct, in fluid communication with a dip tube which extends into the tank, the pump body is fitted with sealing in said central duct, and the neck further comprises an air intake passage formed next to the central conduit and communicating the air intake orifice of the pump with the interior of the tank.
  • the quantity of said fluid substance which is transported with the pump is limited at most to the volume of the pump chamber, generally very small: if the dip tube was mounted on the pump, it could possibly still contain the first fluid substance during its transfer to the full tank, and this would increase the time during which the device sprays a mixture of the two substances.
  • the neck of the reservoir communicates with the fluid substance via a dip tube and not directly, greatly limits the possibilities of fraud by partial emptying of the reservoir before its purchase by the consumer, and also in practice prevents a user from refilling his reservoir with a fluid substance without having a suitable refill, which limits the possibilities of improper use of the device.
  • the central duct is provided with a frangible membrane which closes said central duct before the fixing of the plug, then is broken by the pump body during the fixing of the plug to the neck, and / or the return passage of air is provided with a frangible plugging element which closes said air return passage before the fixing of said plug, then is broken when the plug is fixed on the neck.
  • a frangible plugging element which closes said air return passage before the fixing of said plug, then is broken when the plug is fixed on the neck.
  • said frangible element which obstructs the air intake passage may have a projecting part which interferes with the plug or with the pump body during the fixing of said plug.
  • said plug is fixed to said neck by screwing
  • said frangible plugging element is a rod which extends axially between a base and a free end, the base of said rod being connected to the neck by a peripheral bridge of frangible material
  • the stopper comprises a member which extends axially towards the inside of the reservoir, in correspondence with said rod, said member interfering with the free end of the rod by laying down said rod when the stopper is screwed onto the neck, thereby at least partially breaking said peripheral bridge of frangible material.
  • the neck comprises a ring which is irreversibly snapped into said neck, and said ring comprises said central duct and said air return passage.
  • the ring can be internally threaded and the plug externally threaded, the plug then being screwed inside the ring.
  • the device has a central conduit provided with a projecting part directed towards the pump body, said refill having an outlet conduit closed by a plug which can open the outlet conduit by pressing into the outlet conduit, said outlet conduit of the refill being adapted to fit tightly on said protruding part of the central duct of the reservoir, and said cap being adapted to abut against said protruding part during this interlocking, to open the outlet duct of the refill.
  • the pump operates without air intake
  • the reservoir is deformable
  • the neck has a frangible membrane which closes said neck before the fixing of the cap and which is torn by the pump body during of the fixing of the cap on the neck
  • the neck comprises sealing means which cooperate with complementary sealing means displaceable with the pump body to establish a seal between the neck and the pump body at the latest when the pump body breaks said frangible membrane.
  • the neck has a central duct which extends axially between a first end and a second end, the duct has a peripheral internal relief constituting said sealing means, and said frangible membrane is disposed between said internal relief and the first end. of said central duct.
  • Said peripheral inner relief can advantageously be fixed in the vicinity of the frangible membrane.
  • Said peripheral inner relief may include an annular lip formed inside the duct, adapted to be applied radially in leaktight manner against the pump body.
  • said duct sealing means comprise a shoulder formed in the duct, between the frangible membrane and its second end, said shoulder being directed towards said second end, said shoulder being adapted to form a seal with an annular seal. , when said annular seal abuts against the shoulder, said annular seal being slidably mounted with friction and with sealing on the pump body and sliding without sealing in the duct.
  • the neck is formed in the upper part of the tank.
  • the reservoir comprises at least one deformable wall, said deformable wall is adapted to move between a first position, where the reservoir defines a maximum interior volume, and a second position, where the reservoir defines an interior volume substantially zero, and it further comprises elastic means which urge said deformable wall to its second position, with sufficient force to create in the vicinity of the neck a pressure greater than the vaporization pressure of said product at room temperature, regardless of the position of said deformable wall.
  • Said pressure may be at least equal to atmospheric pressure or at least 20 kPa greater than atmospheric pressure.
  • the deformable wall may have a rigid bottom and a flexible side wall, said elastic means urging the rigid bottom towards the neck, and when the volume of the product contained in the reservoir decreases, the bottom of the deformable wall moves towards the neck while turning over gradually on itself said flexible side wall.
  • the rigid bottom may be thick so as to guide the ascent of said rigid bottom onto the neck.
  • the tank can be placed in a rigid sheath having a shape substantially complementary to the side wall of the tank.
  • said neck comprises a ring which is irreversibly snapped into said neck, and said ring comprises the frangible membrane and the sealing means.
  • said plug comprises air passage means for evacuating the compressed air between said plug and said neck sealing means to the atmosphere, when the plug is mounted on the neck.
  • the reservoir has a peripheral side wall which does not have symmetry of revolution, a part of said neck is located in the vicinity of the side wall, and the side nozzle of the pusher is oriented. towards said part of the neck adjacent to the side wall: the length of the side nozzle of the pump plunger is thus reduced.
  • said cap is fixed in a ring fitted into the neck of the reservoir, the neck has a frustoconical interior surface of low conicity, widened towards the outside of the reservoir, and the ring has a complementary frustoconical surface which rests on the interior frustoconical surface neck, to absorb vibrations.
  • the reservoir is advantageously made of low density polyethylene, which gives it sufficient flexibility to absorb the vibrations due to the actuation of the pump.
  • the cap comprises a part close to the reservoir, having an external shape of revolution around the axis of the actuating member, and a second part remote from the reservoir, having an outer shape which does not have symmetry of revolution
  • the head has a hooking wall substantially perpendicular to the axis of the actuating member, said hooking wall has a recess having a shape substantially complementary to the shape outside of the first part of the plug, said recess is centered relative to the actuating member of the actuating head, the pusher is removably fitted onto the actuating member when the plug is pressed axially into said recess, and the cap is locked on said attachment wall by a rotational movement of the reservoir and the cap around the actuating member
  • the reservoir further comprises a handle close to the actuating head, disposed radially relative to the axis of the actuating member, and said actuating head comprises an orthoradial hook for hooking the handle at the end of said movement of rotation of
  • the reservoir comprises means for supporting coded information, for writing on said reservoir coded information
  • said electronic control and supply circuit comprises reading means for reading said coded information, said reading means being connected to control means for authorizing or not the operation of the actuating head as a function of said read information.
  • said means for angular positioning of said side nozzle comprise means for imposing on the plug a determined orientation relative to the head, and guide means for guiding the side nozzle of the pusher in a plane having a particular orientation with respect to the plug.
  • the plug may in particular include a snap-on relief which snaps into the actuating head, thereby fixing the angular position of the plug.
  • said means for angular positioning of said side nozzle include reliefs formed in correspondence on said ring and said neck to impose on said ring an angular orientation determined with respect to the reservoir, the threads of said ring and said cap cooperating to impose on the cap an angular orientation determined with respect to said ring, said angular positioning means further comprising means for imposing on the reservoir a determined orientation with respect to the head, and guide means for guiding the lateral nozzle of the pusher in a plane having a particular orientation relative to the plug.
  • the ring and the plug also have complementary snap-on reliefs to impose on the plug a precise angular orientation relative to the ring.
  • the invention also relates to a refill constituted by the reservoir filled with fluid substance, with or without a ring snapped into its neck.
  • the reservoir contains a fluid or pasty substance, which can be a perfume, a pharmaceutical or cosmetic product, a lacquer, an insecticide, a paint, a cleaning product, etc.
  • a fluid or pasty substance which can be a perfume, a pharmaceutical or cosmetic product, a lacquer, an insecticide, a paint, a cleaning product, etc.
  • Such a device can be actuated as desired at once by stroke or rapid repetition, for example at 40 Hz, which produces a spray or pseudo-continuous distribution of the product.
  • propellant gas device such a device can therefore avoid the use of propellant gases such as chloroflurocarbons, the harmful effects of which are known to environment, and hydrocarbons, dangerous for users.
  • the pump of the device of the invention can operate without air intake, that is to say without returning air to the reservoir on each actuation of the pump.
  • the device according to the invention can be integrated into an elongated housing 1, intended to be held vertically by hand by a user.
  • the housing comprises at least one actuation button 2 and an outlet orifice 3 allowing the emission of the fluid substance, in sprayed form or not.
  • the housing 1 includes an actuating head which comprises the core and its solenoid, and which can comprise cells or batteries, or which can be connected to the electrical network.
  • FIG. 2 schematically represents the interior of the housing 1 of FIG. 1.
  • the device comprises a reservoir 4 containing the fluid substance, to be sprayed or else to be dispensed without spraying.
  • the reservoir 4 comprises in the upper part a neck 5 in which a pump 6 is mounted.
  • the pump 6, an example of which is shown in FIG. 3, comprises a pump body 7 having an inlet end 7a whether or not narrowed.
  • the inlet end 7a has an inlet orifice 8 which communicates with the reservoir 4.
  • the pump also comprises a hollow actuating rod 9 which allows the product to exit.
  • a pusher 10 is mounted on the actuating rod 9 of the pump and comprises a lateral nozzle 11 allowing the expulsion of the product towards the outside of the device.
  • the device further comprises an actuating means, which comprises a core 12 made of magnetic material such as soft iron, sliding mounted with lost movement in a solenoid 13 and linked to a rod 14 preferably non-magnetic, adapted to press on the pusher 10 when the solenoid 23 is activated.
  • the rod 14 is preferably linked to the pusher 10 and it is axially aligned with the hollow actuating rod 9.
  • the rod 14 is preferably detachably snapped onto the pusher 10, and the pusher 10 is fixed more securely to the rod actuation 9 than the rod 14, so that the pusher 10 comes with the pump 6 when pulling axially on said pump.
  • the rod 14 preferably has a shape of revolution.
  • the pump actuation mechanism is shown in more detail in Figures 27 and 28, described below for the second embodiment.
  • the pump 6 can be of the type described in the French patents FR 2 305 241 and FR 2 314 772 and in the corresponding American patent US 4 025 046, an example of which is shown in FIG. 3.
  • a pump comprises a pump body hollow cylindrical 7 in which slides a piston 15 connected to the actuating rod 9.
  • the pump body and the piston define a pump chamber 13 which communicates with the inlet orifice 8 by an inlet valve 17, constituted here by a skirt which is fitted on a tubular end piece 128 formed around the intake orifice.
  • the pump chamber 16 communicates with the outside by an outlet valve 19, constituted here by a needle 18 applied elastically against a seat formed in the rod 9.
  • the pump described briefly here, and described in detail in the patents above, is given only by way of nonlimiting example.
  • Other pumps could be used, for example the pump described in European patent application EP 0 330 530 and the American patent US 4,936,492.
  • the skirt 17 is fitted with sealing on the end piece 128 only after a dead stroke C1 which is advantageously 0.5 to 2 times the useful stroke C2 of the piston, during which the piston expels the substance contained in the pump chamber: thus, the core 12 accelerates on the stroke C1 before starting to pressurize the fluid substance contained in the pump chamber, which gives it sufficient kinetic energy to produce a homogeneous spray in fine particles from the start to the end of the useful stroke C2 of the piston.
  • the end piece 128 may have an axial groove 129 in the upper part, which extends over a certain distance in the direction of the inlet orifice 8.
  • the rod 14 When the rod 14 is not attached to the pusher 10, it may be possible to separate the rod 14 by a certain axial distance C1 relative to the pusher, so that the core 12 travels a certain dead travel C1 before come into contact with the pusher. In this case, the groove 129 becomes unnecessary. In all cases, it is essential that the pump body 7 be positioned axially very precisely with respect to the solenoid 13, in order to respect the strokes C1 and C2 (dead stroke and useful stroke).
  • FIG. 4 represents a first embodiment of the deformable reservoir 4 of the device according to the invention, before filling.
  • the reservoir 4 has a relatively rigid upper part 20, in which the neck 5 of said reservoir is formed.
  • the neck 5 has an external thread 5a, provided with an axial groove 5b, the usefulness of which will be seen further on, in the description of FIGS. 11 to 15.
  • the neck 5 is crossed by a central opening 5c which extends between a upper enlargement 5d forming a shoulder directed upwards, and a lower enlargement 5f forming a shoulder directed downwards. The usefulness of these enlargements will also be seen later with reference to FIGS. 11 to 15.
  • a rigid annular wall 21 extends radially outward from said neck 5, said wall 21 being extended downwards by a rigid lateral wall 22 which extends to a lower end 23.
  • the wall 22 is advantageously slightly frustoconical, wider at its lower end 23 than at the level of the annular wall 21. It can also be cylindrical, of revolution or not.
  • the wall 22 may have a constant thickness, or a thickness which decreases from the annular wall 21 to the lower end. From the lower end 23, the rigid side wall 22 is extended by a flexible, thinner side wall 24 which extends to a bottom 25 which can also be flexible.
  • the flexible side wall 24 can itself be slightly frustoconical, and have a diameter, at the bottom 25, substantially equal to or slightly less than the inside diameter of the rigid side wall 22 at the annular wall 21.
  • the wall 24 and the bottom 25 form a relatively flexible part 28 of the tank, suitable for entering the rigid part 20 until the internal volume of the tank 4 is reduced substantially to zero.
  • the reservoir 4 is generally formed from synthetic material, for example from thermoplastic or elastomeric material, or a mixture of these.
  • the flexible part 28 can be attached to the rigid part 20.
  • these two parts can be formed in one piece, for example by extrusion blow molding or two component injection blow molding, where a layer of a relatively thermoplastic material rigid is superimposed on a layer of relatively flexible thermoplastic material, on the rigid part 20 of the reservoir.
  • a relatively thick and rigid, cylindrical or slightly frustoconical guide disc 26 is placed outside the bottom 25 when the reservoir 4 is in its folded position.
  • the guide disc 26 may have on its lower face an abutment relief 27 which extends downwards over a certain distance.
  • the guide disc 26 can be kept in contact with the bottom 25 by clamping in a part 24b of the flexible side wall 24, which is turned on itself towards the upper wall 21.
  • the flexible side wall 24 can have on its outer face an annular rib 29 which helps to keep the guide disc 26 in place.
  • the guide disc 26 could be kept in contact with the bottom 25 by any other means, and could also be disposed on the inner face of said bottom 25, although this solution is less preferred, without departing from the scope of the present invention.
  • the tank 4 is filled under pressure with spray or dispensing product, which has the effect of partially unfolding said tank 4, to the position shown in FIG. 6, where only the part 24b of the side wall 24 which circle the guide disc 26, is folded inwards.
  • the flexible side wall 24 of the reservoir always forms an annular fold 30 which constitutes the lower end of the reservoir.
  • This filling can be done by injecting the product under pressure, or by imposing a vacuum on the outside of the tank 4, or else the tank can move simply because of the weight of the product.
  • the reservoir 4 is then placed in a vacuum chamber where a vacuum is made, so that the reservoir 4 no longer contains air, then the neck 5 is closed using a tear-off membrane ring such than that shown in Figures 11 to 15.
  • a pump is put in place in the neck 5 by tearing said tearable membrane, as explained below with reference to FIGS. 11 to 15.
  • the pump can be mounted in a stopper. fixing 50 screwed on the neck 5.
  • the fixing plug 50 can be molded in plastic.
  • the fixing plug 50 comprises a hollow crown 51 provided with at least one external lateral flat 52, for example three flat 52s arranged at 120 ° from one another.
  • the crown 51 defines an annular shoulder 53 directed towards the reservoir 4, and said shoulder 53 comprises a rounded projection 54 also directed towards the reservoir.
  • the plug 50 can receive a pump 7, fixed by any known means, for example by means of a washer 56 of plastic material fitted by force into the crown 51, or else the plug 50 can possibly constitute itself the body of this pump.
  • the crown 51 may include a notch 55 to allow passage to the side nozzle of the pump actuating plunger and to guide this side nozzle 11 in a vertical plane.
  • the fixing of the plug 50 in the housing 1 can be done by insertion of the crown 51 in an orifice of complementary shape, then rotation of the crown 51 and locking by snap-fastening of the projection 54 in a complementary relief of the housing.
  • the fixing of the plug 50 in the housing 1 results in a very precise axial positioning of the pump body along the axis of the core 12, and an angular positioning of the lateral nozzle 11 opposite the orifice 3 formed in the housing.
  • the angular positioning of the lateral nozzle is obtained by the latching of the projection 54 of the plug 50 and by the notch 55 of the plug. This angular positioning allows the nozzle 11 to always be opposite the outlet orifice 3 of the housing.
  • the precise axial positioning of the pump body is achieved by precise axial positioning of the plug 50 and will be explained in more detail for the second embodiment of the invention ( Figure 20 and following).
  • the core 12 being movable between a predetermined high position and a low position, it is essential that the pump body 7 be positioned axially with precision relative to the solenoid 13, on the one hand to guarantee a determined stroke of the pump piston, therefore a constant volume of expelled fluid on each actuation, and on the other hand to guarantee a determined acceleration distance C1 from the core before compressing the pump chamber, this acceleration distance being essential to guarantee a good homogeneity of the sprayed fluid paticles.
  • the reservoir 4 may further include a handle which is hooked by a hook of the housing 1, as described below in the second embodiment.
  • said reservoir 4 is placed in a rigid sheath 31 which forms part of the housing 1, and which comprises a bottom 32 from which extends a side wall 33 vertically upwards.
  • the side wall 33 can be cylindrical, of revolution or not.
  • the bottom 32 of the rigid sheath may include an orifice 35 for venting, and a spring 36 extends from said bottom 32 in the direction of the guide disc 26 of the reservoir 4.
  • the spring 36 is a spring frustoconical having a lower end having a diameter substantially equal to the inside diameter of the side wall 33, in the case where it is cylindrical of revolution.
  • the abutment relief 27 of the guide disc 26 prefferably has an external shape of cylinder of revolution, and for the spring 36 to have an upper end having a diameter substantially equal to the outside diameter of said abutment relief 27.
  • the side wall 33 of the sheath 31 comprises an internal shoulder 34 directed upwards, on which the internal end 23 of the rigid side wall 22 of the reservoir 4 can abut.
  • Another advantageous characteristic of the invention results from the fact that the folding of the reservoir 4, that is to say the ascent of the bottom 25 towards the annular wall 21, is easier than its unfolding, that is to say the descent of the bottom 25.
  • This is due to the fact that it is easier to drive the flexible side wall 24 by pulling it, as is the case when the bottom 25 rises in the tank 4, rather than in the pushing, as is the case when the bottom 25 descends into the reservoir 4.
  • it when said bottom 25 descends into the tank 24, it is created in the part of the wall 24 which is raised inside the tank 4, folds which tend to brace themselves to hinder the downward movement of the bottom 25.
  • the tank 4 can in this case be considered to be substantially non-deformable, so that the pressure in the reservoir 4 increases very rapidly, and becomes sufficient to prevent the continuation of the formation of gas at the temperature considered.
  • the quantity of gas produced inside the tank 4 is very low even at a relatively high temperature, and a risk of pump priming is avoided.
  • Figures 9 and 10 show another tank usable in the device according to the first embodiment of the invention.
  • the reservoir 4 of Figures 9 and 10 is formed from a fairly flexible material such as polyethylene. It has a neck 5 similar to that of FIG. 4. A relatively thick wall, therefore rigid, extends radially outward from the neck 5.
  • the wall 60 is extended axially downwards by a cylindrical side wall 60 thin, therefore flexible.
  • the side wall 60 is connected to a relatively thick, therefore rigid, bottom 63.
  • the bottom 63 advantageously comprises an annular rib 64 on its outer face, the usefulness of which will be seen later.
  • the bottom 63 has a width slightly less than the free space in the center of the side wall 61.
  • the reservoir 4 is molded in the position shown in dotted lines in FIG. 9, that is to say with the bottom 63 not folded back inside the side wall 61. Then the bottom 63 is pushed back slightly inside of the side wall 61, as shown in solid lines in FIG. 9, so that the side wall 61 folds back on itself by forming a fold 62 in the lower part of the tank.
  • the tank When viewed from above, the tank has an oval shape, but could have any other shape.
  • the neck 5 is centered on the tank 4, but could also be offset.
  • the tank 4 is advantageously filled under vacuum with a desired fluid product, then the neck 5 is closed using a membrane ring as shown in Figures 12 to 15: in this way, the tank does not contain air pocket after capping.
  • the ring 80 shown in Figure 12 is molded from plastic material. It comprises an axial duct 82, extending between a lower end 83 and an upper end 84.
  • the duct 82 has a cylindrical side wall 87 which extends from the upper end 84 of the duct to a lower narrowing forming a shoulder 86.
  • a cylindrical wall 88 which extends a short distance inside the duct 82, defining the lower end 83 of said conduit.
  • a tearable membrane 85 for example by heat sealing.
  • At the upper end of the wall 88 is formed an inner annular sealing lip 90.
  • the side wall 87 of the conduit 82 has an upper external collar 89 forming a shoulder directed downwards, and a lower external collar 93
  • the collar 93 has a shoulder 93b directed upwards, and a biased surface 93a which widens from the lower end of the ring to the shoulder 93b.
  • the ring 80 is fixed in the neck 5 by simple pressing: the bias surface 93a allows the ring 80 to penetrate the neck 5, until the upper collar 89 of the ring abuts against the shoulder of the widening upper 5d of the neck 5. The lower collar 93 of the ring then engages in the lower widening 5f of the neck, the shoulder 93b preventing the ring 80 from coming out again.
  • the reservoir 4 After installation of the ring 80, the reservoir 4 is closed in leaktight manner, and can therefore be left in the open air.
  • the pump 6 When it is desired to mount a pump 6 on the tank 4, the pump 6 is generally assembled with a fixing plug 50 which is screwed onto the neck 5 of the tank.
  • the pump body 7a has a diameter less than the diameter of the side wall 87 of the ring 80, therefore at the start of screwing the plug 50, the pump body 7 sinks without sealing in the conduit 82 of the ring. Thanks to the vertical groove 5b formed in the thread 5a of the neck 5, the air contained in the conduit 82 of the ring can escape as the pump body sinks into the conduit.
  • the inner sealing lip 90 of the wall 88 is applied with sealing against a periphery of the inlet end 7a of the pump body.
  • the volume of air which enters the reservoir 4 when the pump 6 is mounted can be minimized, or even canceled, by placing the sealing lip 90 in contact with the membrane 85, as shown in FIG. 13.
  • the conduit 82 is shown with a shape substantially complementary to the pump body 7 and its inlet end 7a: in this case, it is useful to provide an axial groove 94 inside the conduit 82, which extends from the upper end 84 of the duct to the lip 90 in order to avoid trapping air in the duct 82 when the pump body is driven into the duct. Note that it would be possible to omit the groove 94 simply by widening the conduit 82 sufficiently so that neither the pump body 7, nor its inlet end 7a does not slide with sealing in the conduit 82, outside the sealing lip 90.
  • the membrane 85 could be heat-sealed on the shoulder 86 and the sealing lip 90 would then be placed in contact with the membrane 85, on the side of said membrane 85 which is directed towards the lower end 83 of the conduit 82.
  • the membrane 85 is preferably formed between the sealing lip 90 and the lower end 83 of the conduit 82, including on the sealing lip or at the lower end 83.
  • the tearable membrane 85 can also be molded with the ring 80, as described with reference to FIGS. 31 to 35.
  • Figures 14 and 15 show variants of the ring 80 which require the use of an annular seal 91, 92, elastomer or other.
  • the side wall 87 of the ring has a diameter large enough for the pump body 7 to sink into it without sealing, and the shoulder 86 of the ring delimits an opening 95 having a diameter just enough lays so that the inlet end 7a of the pump body penetrates without sealing into the opening 95.
  • the seal 91 is slidably mounted with friction on the inlet end 7a of the pump body. It is in leaktight contact with said inlet end 7a, but slides without sealing in the side wall 87. It is separated from the bottom of the inlet end 7a by a distance d substantially equal to the distance e which separates the shoulder 86 and the diaphragm 85. In this way, when the inlet end 7a of the pump body comes into contact with the diaphragm 85, the seal 91 also comes into tight contact against the shoulder 86: we therefore hardly do anything not enter air into the tank. It will also be noted that at the end of the tightening of the plug 50, the shoulder 71, which separates the inlet end 7a from the rest of the pump body 7, crushes the seal 91 against the shoulder 86 while ensuring a seal excellent and durable.
  • the seal is slidably mounted on the widest part of the pump body 7 and not on its inlet end 7a.
  • the volume of air which enters the reservoir 4 is therefore limited to the annular volume comprised between the inlet end 7a and the seal 92.
  • the seal 92 here has an axial groove 96 to promote the exit of the air while the pump body is pressed into the conduit 82.
  • the deformable reservoir 4 can be slid into a rigid sheath 70 before screwing the plug 50, and a flat seal 81 can be interposed between the plug 50 and the neck 5.
  • the sheath 70 has an annular wall upper 71, pierced with a central opening 71a which allows passage to the neck 5.
  • the upper wall 71 extends radially outwards, up to a side wall 72.
  • the wall 72 extends axially downwards, to a lower end 72a.
  • the end lower 72a is open, and can receive a bottom 73, screwed or fixed by any known means removably (for example, quarter-turn fixing).
  • a spring 36 biases the bottom 63 of the tank upwards.
  • the spring 36 is forcibly fitted onto a central relief 74 of the bottom 73, and is centered on the bottom 63 of the reservoir by the annular rib 64, but the spring 36 could have a different shape and mounting.
  • the spring 36 could possibly be replaced by another equivalent elastic means.
  • the bottom 63 rises in the side wall 61 by folding the latter over itself, as already explained with reference to FIG. 6.
  • the spring 36 maintains sufficient pressure in the reservoir 4 to prevent part of the product from vaporizing by creating a gas pocket which could defuse the pump.
  • the pump 6 remains primed until the tank 4 is completely emptied.
  • the pump creates in the tank an intense depression which presses the upturned part of the reservoir against the non-uplifted part, so that almost 100% of the product initially contained in the reservoir is sucked up, all the more so since the ring 80 substantially eliminates any dead volume in neck 5.
  • the reservoir may have another shape and deform differently from what has been described previously.
  • the neck 5 is advantageously eccentric, so as to be closer to the side wall of the housing 1.
  • the side nozzle 11 of the pusher may be shorter to reach the vicinity of the outlet orifice 3, which is particularly favorable for avoiding vibrations.
  • plug 50 could be screwed not on the neck 5, but inside the ring 80, as in the second embodiment described above ( Figures 20 to 41).
  • the reservoir 4 can have a flattened shape in a plane containing the neck 5.
  • the reservoir 4 in FIGS. 16 to 18 can for example be made of polyethylene, and has an upper wall 60 which extends radially outwards from the neck 5, and which can be quite rigid due to its thickness.
  • the reservoir 4 further comprises a flexible side wall 61, which extends axially up to a flexible bottom 97 itself, which can be rounded in side view (fig. 17).
  • the reservoir 4 is placed in a rigid sheath 65 which comprises elastic means for urging the side wall 61 so as to flatten it.
  • the sheath comprises two half-shells 66, 67 connected by a hinge, which can be closed on the tank by snap-fastening.
  • One of the half-shells 66 has a bottom 68, while the other half-shell 67 has means 69 for latching the neck 5.
  • each half-shell has a flat plate 98 connected to the half-shell. shell by elastic means, here plastic strips 99 folded in bellows and molded with the plate 98 and the corresponding half-shell.
  • the flat plates 98 are placed vertically below the neck 5, which is non-deformable, so that said neck 5 does not interfere with the flattening of the reservoir by the plates 98, under the effect of the strips 99.
  • the elastic means which urge the tank cause regular deformation of said tank, while keeping the deformable walls of the tank taut: this prevents these walls from being crumpled under the effect of a vacuum created by the pump, and therefore the tank can be emptied completely.
  • the reservoir 4 could be rigid provided that it is partially filled with nitrogen or another inert gas under pressure, in which case, the central duct of the ring 80 must extend until bottom of the reservoir 4 by a dip tube as in the second embodiment described below.
  • the device according to the invention comprises a pump which can be similar to that of Figure 3, but which operates with air intake, that is to say by returning air to the tank on each actuation.
  • the reservoir therefore does not deform as and when the fluid substance it contains is consumed.
  • FIGS. 20 to 38 show an overview of the device according to the second embodiment of the invention, which is similar, in many aspects, to the device of the first embodiment.
  • the device of Figure 20 comprises an actuating head 1 below which is fixed a reservoir 100 of fluid substance.
  • the actuating head 1 comprises a control button 103, and an outlet orifice 105 which allows the outlet of the sprayed fluid substance.
  • the actuating head 1 also advantageously comprises a selector 136 which makes it possible for example to choose between a complete stop a piecemeal operation, and a repetitive operation at a rapid rate giving a pseudo-continuous spraying.
  • the actuating head 1 may also include a light indicator 137, for example to indicate the wear of the batteries.
  • Figure 22 shows an exploded view of the device of FIG. 20.
  • the reservoir 100 can be molded from plastic, and has a cylindrical side wall 100a, which extends axially between a bottom 100b and an upper wall 100c in which an eccentric neck 5 is formed.
  • the tank 100 further comprises in the upper part a handle 106, arranged radially with respect to the axis of the neck 5, and which extends axially upwards from the upper wall 100c.
  • a ring 114 In the neck 5 is snapped a ring 114, provided with a central conduit 108 in which is mounted a dip tube 109, which extends to the bottom of the tank 100.
  • a plug 50 similar to the plug 50 already described, is mounted in the ring 114, and a pump 6 is fixed in the plug 50, the pump 6 being provided with a pusher 10 with a side nozzle 11 for the outlet of the sprayed substance.
  • the actuation head 1 comprises an actuation block 138 which includes an electronic power and control circuit 101, a solenoid 12 connected to the circuit 101 and containing a core 13 (not shown) for actuating the pusher 10, and accumulators 102.
  • the device is shown in more detail in FIGS. 27 and 28.
  • the pump 6 is fixed in the plug 50, for example by snap-fastening, the plug 50 is screwed inside the ring 114, which is itself snapped into the neck 5 of the tank.
  • the central duct 108 of the ring 114 has an internal ring 126, fitted with a seal in said duct, and the dip tube 109 is fitted in the ring 126.
  • the dip tube 109 could be fitted directly with seal in the central duct 108 of the ring 114.
  • the pump 6 comprises a pump body 7 having an inlet end 7a, which is fitted with sealing in the central duct 108 of the ring 114 when the plug 50 is screwed onto the ring 114.
  • said inlet end 7a has a point 7b adapted to pierce a frangible membrane (not shown) which closes the conduit 108.
  • the ring 114 further comprises an air intake orifice 110, which allows the pump 6 to return from the in the tank 10 on each actuation.
  • the actuation head 1 comprises an external rigid shell 104 in which the actuation block 138 is fixed.
  • the electronic circuit 101 comprises a microprocessor 139, which controls the operation of the device.
  • the circuit 101 further comprises the signaling means 137, which may be constituted by a light-emitting diode, possibly double, and the selector 136.
  • the accumulators 102 are connected to the electronic circuit 101, and the actuation head 1 comprises a socket 140 to connect a transformer for recharging the accumulators 102.
  • the electronic circuit 101 is also connected to the control button 103, which triggers the operation of the device.
  • the circuit of the device 101 is connected to the solenoid 13, and supplies electrical energy said solenoid 13 each time the pump 6 must be actuated.
  • a soft iron core 12 slides axially inside the solenoid 13, and said core 12 comprises a rod 14, preferably made of non-magnetic material which extends towards the pusher 10, and the end of which is detachably snapped onto said pusher 10.
  • the rod 14 has a shape of revolution around its axis to allow rotation of the pusher 10 relative to the rod 14 after the snap-fastening. It should be noted that the rod 14 could also not be linked to the pusher 10, but this solution is not preferred, since it can generate vibrations or variations in the sprayed flow rate.
  • the rod 14 advantageously comprises an annular groove in which is fixed a part 141 preferably made of damping material.
  • the rod 14 passes through a wall 142 integral with the solenoid 13 and the actuation head 1, and the core 12 is axially displaceable with lost movement between a low position determined by the stop of the core 12 against the wall 142, and a high position determined by the stop of the part 141 against the wall 142.
  • the plug 50 is snapped into a wall 143 perpendicular to the axis of the rod 14 and secured to the head actuation 1, and the axial position of said plug 50 relative to the solenoid 13 is fixed precisely by an upper stop of said stopper 50 against a wall 144 secured to the actuation head 1, and the lower stop of said stopper 50 against said wall 143 in which the plug is snapped.
  • the pump 6 is positioned axially very precisely with respect to the solenoid 13, so that the push rod 9 of said pump is moved according to a predetermined stroke on each actuation, so that the predetermined strokes C1 and C2 are respected very precisely on each actuation, as described above with reference to FIG. 3.
  • the plug 50 is first engaged axially in a recess 143a of said wall 143 which has an internal shape substantially corresponding to the external shape of the plug 50, and being snapped in. the pusher 10 on the end of the rod 14 of the core 12. The rod 14 and the push rod 9 of the pump are then aligned. Then performs a rotary movement of the pusher 10 relative to the head 1, so as to cause the locking of the plug 50 on said wall 143 due to the external shape of the plug 50, which does not have symmetry of revolution.
  • the actuating head 1 comprises a hook 107 arranged orthoradially with respect to the common axis of the core 12 and of the pump 6, so that the hook 107 engages in the handle 106 while maintaining said handle 106
  • the reservoir 100 may include coded indications relating for example to the content of the reservoir 100. These indications may for example be in the form of clear or reflective spots 145 disposed at the top of the handle 106, so that said spots 145 are directed towards the actuating head 1 when the reservoir 100 is mounted on said head 1.
  • the actuating head 1 comprises a reading device 146, disposed at above the handle 106, said device 146 being connected to the electronic circuit 101.
  • the device 146 may comprise, for each spot to be detected, an assembly constituted by a light-emitting diode associated with a lens for sending a light beam towards said spot, and a phototransistor for detecting the reflection of said light beam by said spot 145.
  • an opto-electronic component sold by SIEMENS under the references SFH 900-2 and SFH 900-5, which comprises an LED, a lens and a phototransistor. It goes without saying that other reading devices or other means of coding information on the reservoir could be used.
  • the coded information is transmitted to the microprocessor 139, which can for example prevent the operation of the actuation head 1 for certain products, or when the expiration date of the product contained in the tank 100 is exceeded, etc.
  • FIGS. 23 to 26 represent the different stages of the replacement of an empty reservoir 100 on an actuation head 1.
  • the empty reservoir 100 is dismantled from the actuation head, by rotation of the reservoir 100 relative to the actuation head in the direction of the arrow 147, then the reservoir 100 is separated axially from the actuation head 1, in the direction of the arrows 148.
  • the fixing of the pusher 10 on the rod actuation 9 of the pump is more solid than the snap of the pusher on the rod 14, so the pusher 10 comes with the pump 6 and the reservoir 100.
  • the neck 5 of the tank 100 is shown in more detail in FIG. 37.
  • the neck 5 has an upper part 151 which is relatively thick, and an intermediate part 152 which is relatively thin, which connects it to the rest of the tank 100.
  • the neck 5 has a duct interior 153 which extends axially between the interior of the reservoir 100 and an upper end 154 of the neck 5.
  • the duct 153 is delimited by an interior surface 159 of the neck.
  • the surface 159 is slightly frustoconical with an increasing diameter towards the upper end 154 of the neck, for reasons which will be seen later.
  • the surface 159 ends in a chamfer 156 in the vicinity of the end. upper 154 of the neck.
  • the enlarged part 152 of the neck has external snap-in housings 155 distributed at its periphery, for snap-fastening of the ring 114.
  • the housings 155 are distributed irregularly at the periphery of the neck, so as to impose on the ring 114 a particular angular orientation with respect to the tank 100.
  • the tank 100 can be molded from a fairly flexible material such as low density polyethylene; the vibrations which are transmitted to the pump body 7 and to the plug are then damped by the reservoir, and in particular by the side wall 100a.
  • the ring 114 which is snapped inside the neck 5, is shown in more detail in FIGS. 33 to 36.
  • the ring 114 can be molded in plastic material, and has a side wall 160 having a shape substantially complementary to the inner duct. 153, slightly tapered.
  • the frustoconical shape ensures an excellent seal between the ring 114 and the neck 5, and in addition participates in the damping of the vibrations caused by the actuation of the pump.
  • the side wall 160 has an internal thread 166.
  • the wall 160 extends axially between a bottom 161 and an open upper end 160a, extended radially outwards by a radial crown 168, itself extended axially towards the bottom 161 of the bage 114 by an annular side wall 167.
  • the wall 167 When the ring 114 is fitted into the neck 5, the wall 167 covers said neck 5.
  • the wall 167 has internal detent notches 167a which snap into the housings 155 from the bottleneck.
  • the crown 168 has passages 168a above each notch 167a. The passages 168a allow the notches 167a to be molded, and also serve as vents when the ring 114 is mounted on the neck 5.
  • the bottom 161 of the ring 114 comprises the conduit 108, which delimits a central orifice 162 and has a projecting part 108d inside the side wall 160.
  • the central conduit 108 comprises towards the interior of the tank 100 a part 108a of widened inside diameter, extended by a chamfer 108b towards the inside of the tank 100, to allow the attachment of the dip tube 109 and the inner ring 126 mentioned above.
  • the central orifice 162 comprises an inner peripheral sealing lip 162a, which forms a seal against the pump body 7.
  • the chamfer 108b has an inner annular shoulder 108c, which allows the latching of the inner ring 126.
  • the inner ring 126 has a peripheral side wall which fits into the conduit 108 and in which the dip tube 109 is fitted.
  • the ring inner 126 further comprises, in the upper part, a frangible membrane 112, which closes the conduit 108 and which is broken by the tip 7b of the pump body, when the plug 50 is placed on the ring 114, after tight fitting of the pump body in the peripheral rib 162a.
  • the membrane 112 can be molded in one piece with the inner ring 126 made of plastic, or it can be glued or heat-sealed on the inner ring 126.
  • said membrane 112 has radial grooves 164, each radial groove 164 extending over the full radius of the membrane 112. As shown in FIG. 33, the membrane 112 may also comprise a part central 165 of small thickness.
  • the bottom 161 of the ring 114 has an air intake orifice 110, disposed on the side of the central duct 108.
  • the duct 110 is closed by a rod 113 molded with the ring 114 , which extends axially upwards from a base 113a to a free end 113b, and which is connected to the bottom 161 by a peripheral bridge of frangible material 163, said bridge being able to have on one side a thicker and not frangible 164, which forms a hinge as will be explained below.
  • the device further comprises a plug 50, shown in FIGS. 29 to 32, which has a shape similar to the plug 50 of the first embodiment of the invention.
  • the fixing plug 50 comprises a hollow crown 51 provided with at least one external lateral flat 52, for example three flat 52 disposed at 120 ° from each other.
  • the crown 51 defines an annular shoulder 53 directed towards the reservoir 100, and said shoulder 53 comprises at least one rounded projection 54 also directed towards the reservoir, for example three projections 54 at 120 ° from one another.
  • the crown 51 may include a notch 55 to allow passage to the side nozzle of the pump actuating plunger and to guide this side nozzle 11 in a vertical plane.
  • the plug 50 comprises a central duct 170, in which the pump body 7 is snapped in.
  • the duct 170 has an upper enlargement 171, provided with an internal snap rib 172 for snapping the pump
  • the conduit 170 further comprises an axial groove 173 which extends over the entire height of said conduit 170 and which communicates with the enlarged part 171 of said conduit 170.
  • the pump body 7 has an outer annular flange 134 at the top, and the piston 15 is held inside the pump body 7 by a ferrule 130, which has a side wall.
  • cylindrical 131 fixed inside the pump body, and an external annular flange 132 superimposed on the flange 134 of the pump body.
  • the ferrule 130 has an axial external groove 111, which extends over the entire height of the side wall 131 outside of said side wall, and which extends under the flange 132, up to the radially external end of said flange 132.
  • the groove 111 opens into a lower chamfer 132a of the flange 132, said chamfer 132a communicating with an axial groove 135 of the flange 133 of the pump body, and said flange 133 itself comprises a lower chamfer 134 which communicates with the axial groove 173 of the plug 50 when the pump body is fitted into the inner duct 170 of said plug 50.
  • the inner conduit 170 of the plug 50 is delimited by a cylindrical side wall 174 provided with an external thread 169, and which has a lower end 175 extended towards the bottom 161 of the ring 114 by a wall 176 forming a quarter of a cylinder.
  • the wall 176 interferes with the rod 113 which closes the air intake orifice 110, and layers said rod by breaking the bridge of frangible material 163 which connected said rod 113 to the bottom 161 of the ring 114. If said bridge 161 has a thicker part 164, the rod 113 can remain attached to the bottom 161 by the thicker part 164, which forms a hinge.
  • the threads 166 and 169, respectively of the ring and of the plug 50, are oriented angularly so that the notch 55 of the plug 50 which guides the lateral nozzle 11 of the plunger vertically, is directed radially towards the cylindrical lateral wall of the tank on the side where said cylindrical lateral wall is closest to the neck 5.
  • the crown 51 of the stopper forms at its junction with the side wall 174, an enlargement 201 which covers the radial crown 168 of the ring 114.
  • the enlargement 201 comprises projections 200 directed towards said crown 168, and arranged in correspondence with ec above passages 168a.
  • the projections 200 engage non-irreversibly in the passages 168a, which makes it possible to very precisely define the angular position of the plug 50 relative to the ring 114 and to the tank 100 due to the fact that the passages 168a are distributed in an irregular manner over the crown 168.
  • the ring 114 and the plug 50 could be used with a pump without air intake and a deformable reservoir provided that the wall 174 of the plug 50 is removed.

Landscapes

  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Coating Apparatus (AREA)
  • Nozzles (AREA)
  • Air Bags (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Claims (40)

  1. Nachfüllbare Vorrichtung zur Zerstäubung einer fluiden Substanz, die einen Betätigungskopf (1) und einen lösbaren Tank (4, 100) aufweist, der die fluide Substanz enthält,
       bei der der Betätigungskopf (1) ein Betätigungsorgan (12) aufweist, das zwischen einer vorbestimmten oberen und einer vorbestimmten unteren Position beweglich ist, wobei der Betätigungskopf Mittel (13) besitzt, um das Betätigungsorgan (12) zwischen seiner oberen und seiner unteren Position zu verschieben,
       bei der der lösbare Tank (4, 100) einen Hals (5) aufweist, in den eine Pumpe (6) eingeführt ist, wobei die Pumpe einen hohlen Pumpenkörper (7) enthält, der eine zylindrische Pumpenkammer (16) definiert, die mit der Substanz gefüllt ist und in der ein Kolben (15) gleitet, der axial nach außerhalb des Pumpenkörpers durch einen hohlen Betätigungsstab (9) verlängert wird, durch den die fluide Substanz die Pumpe verläßt, wobei die Pumpenkammer (16) mit der im Tank (4, 100) enthaltenen fluiden Substanz in Verbindung steht,
       bei der ein Drücker (10) mit einer seitlichen Auslaßdüse (11) am Betätigungsstab (9) der Pumpe befestigt ist und das Betätigungsorgan (12) auf den Drücker (10) drückt, um die Pumpe zu betätigen,
       dadurch gekennzeichnet, daß der Hals (5) des Tanks eine aufgesetzte Kappe (50) aufweist, an der die Pumpe (6) befestigt ist, daß die Kappe auf den Hals (5) aufgesetzt ist, daß die Vorrichtung weiter Winkelpositionier-Mittel (54), um die seitliche Düse in Bezug auf den Betätigungskopf winkelmäßig zu positionieren, und Mittel zur präzisen axialen Positionierung aufweist, um die Pumpe (6) in einem bestimmten Abstand von den Mitteln (13) zur Verschiebung des Betätigungsorgans zu positionieren, und daß der Pumpenkörper (7) mit dichtem Kontakt in den Hals (5) des Tanks eingesetzt ist, um die Verbindung mit der im Tank enthaltenen fluiden Substanz herzustellen.
  2. Vorrichtung nach Anspruch 1, bei der die Pumpe (6) mit Luftaufnahme arbeitet und eine seitliche Öffnung für die Luftaufnahme aufweist, wobei der Hals (5) des Tanks eine zentrale Leitung (108) in fluider Verbindung mit einem Tauchrohr (109) aufweist, das sich in den Tank (100) verlängert, wobei der Pumpenkörper (7) dicht in die zentrale Leitung (108) eingefügt ist und der Hals (5) weiter einen Luftaufnahmespalt (110) aufweist, der neben der zentralen Leitung (108) ausgebildet ist und die Luftaufnahmeöffnung der Pumpe mit dem Inneren des Tanks (100) in Verbindung setzt.
  3. Vorrichtung nach Anspruch 2, bei der die zentrale Leitung (108) mit einer zerbrechlichen Membran (112) versehen ist, die die zentrale Leitung vor der Befestigung der Kappe (50) verschließt und die vom Pumpenkörper (7) bei der Befestigung der Kappe auf dem Hals zerrissen wird.
  4. Vorrichtung nach Anspruch 2 oder Anspruch 3, bei der der Luftaufnahmespalt mit einem zerbrechlichen Verschließelement (113) versehen ist, das den Luftaufnahmespalt vor der Befestigung der Kappe verschließt und bei der Befestigung der Kappe auf dem Hals zerrissen wird.
  5. Vorrichtung nach Anspruch 4, bei der das zerbrechliche Verschließelement (113) einen vorspringenden Teil aufweist, der bei der Befestigung der Kappe auf die Kappe (50) einwirkt.
  6. Vorrichtung nach Anspruch 4, bei der das zerbrechliche Verschließelement (113) einen vorspringenden Teil aufweist, der bei der Befestigung der Kappe auf den Pumpenkörper (7) einwirkt.
  7. Vorrichtung nach Anspruch 5, bei der die Kappe (50) durch Festschrauben auf dem Hals befestigt wird, wobei das zerbrechliche Verschließelement eine Stange ist, die sich axial zwischen einer Basis (113a) und einem freien Ende (113b) erstreckt, wobei die Basis der Stange mit dem Hals über einen peripheren Steg (163) aus zerbrechlichem Material verbunden ist und die Kappe ein Organ (176) aufweist, das sich axial ins Innere des Tanks erstreckt, in Verbindung mit der Stange, wobei das Organ (176) auf das freie Ende (113b) der Stange einwirkt, indem es die Stange flachlegt, wenn die Kappe auf den Hals geschraubt wird, und so zumindest teilweise den peripheren Steg aus zerbrechlichem Material (163) zerreißt.
  8. Vorrichtung nach einem beliebigen der Ansprüche 2 bis 7, bei der der Hals (5) einen Ring (114) aufweist, der unumkehrbar auf den Hals (5) eingeklinkt ist, und der Ring die zentrale Leitung und den Luftaufnahmespalt aufweist.
  9. Vorrichtung nach Anspruch 8, bei der der Ring (114) ein Innengewinde und die Kappe (50) ein Außengewinde aufweist, und die Kappe in den Ring eingeschraubt wird.
  10. Vorrichtung nach einem beliebigen der Ansprüche 2 bis 9 mit einem Nachfüllelement, um den Tank (100) der Vorrichtung nach seiner Entleerung durch die Pumpe zu füllen, wobei das Nachfüllelement aufweist:
    - einen verformbaren Behälter (118), der von einem Benutzer zusammengedrückt werden kann,
    - ein Ansatzstück (119) mit Befestigungsmitteln, die denen der Kappe (50) im wesentlichen gleich sind, um anstelle der Kappe (50) lösbar im Hals (5) des Tanks befestigt zu werden, wobei das Ansatzstück in einer Auslaßleitung (122) endet, die mit einem Auslaßkanal (120) versehen ist, der mit dem verformbaren Behälter in Verbindung steht und der dicht an die zentrale Leitung (108) des Halses angeschlossen werden kann, wenn das Ansatzstück auf dem Hals befestigt wird.
  11. Vorrichtung nach einem beliebigen der Ansprüche 2 bis 9 mit einer Nachfüllelement, die eine zentrale Leitung (108) mit einem vorspringende Teil (108d) aufweist, der zum Pumpenkörper (7) hin gerichtet ist, wobei das Nachfüllelement eine Ausgangsleitung (122) besitzt, die von einer Kappe (123) verschlossen wird, die die Auslaßleitung durch Eindrücken in die Auslaßleitung (122) öffnen kann, wobei die Auslaßleitung (122) des Nachfüllelements sich dicht auf den vorspringenden Teil (108d) der zentralen Leitung des Tanks aufschieben kann und die Kappe (123) bei diesem Aufschieben gegen den vorspringenden Teil (108d) in Anschlag kommen kann, um die Auslaßleitung (122) des Nachfüllelements zu öffnen.
  12. Vorrichtung nach Anspruch 1, bei der die Pumpe (6) ohne Luftaufnahme arbeitet, der Tank (4) verformbar ist, der Hals (5) eine zerbrechliche Membran (85) aufweist, die den Hals (5) vor der Befestigung der Kappe (50) verschließt und die vom Pumpenkörper (7) bei der Befestigung der Kappe (50) auf dem Hals zerrissen wird, und der Hals (5) Dichtmittel (90, 86) aufweist, die mit komplementären Dichtmitteln zusammenwirken, die mit dem Pumpenkörper (7) verschiebbar sind, um eine Dichtheit zwischen dem Hals und dem Pumpenkörper spätestens dann herzustellen, wenn der Pumpenkörper die zerbrechliche Membran zerreißt.
  13. Vorrichtung nach Anspruch 12, bei der der Hals (5) eine zentrale Leitung (82) aufweist, die sich axial zwischen einem ersten Ende (83) und einem zweiten Ende (84) erstreckt, wobei die Leitung (82) ein inneres peripheres Relief (90, 86) aufweist, das die Dichtmittel bildet, und die zerbrechliche Membran (85) zwischen dem Innenrelief und dem ersten Ende (83) der zentralen Leitung angeordnet ist.
  14. Vorrichtung nach Anspruch 13, bei der das periphere Innenrelief (86, 90) in der Nähe der zerbrechlichen Membran (85) ausgebildet ist.
  15. Vorrichtung nach Anspruch 13 oder Anspruch 14, bei der die Dichtmittel der Leitung eine ringförmige Lippe (90) enthalten, die im Inneren der Leitung ausgebildet ist und sich radial dicht gegen den Pumpenkörper (7) anlegen kann.
  16. Vorrichtung nach Anspruch 13 oder Anspruch 14, bei der die Dichtmittel der Leitung eine Schulter (86) aufweisen, die in der Leitung (82) zwischen der zerbrechlichen Membran (85) und ihrem zweiten Ende (84) ausgebildet ist, wobei die Schulter (86) zum zweiten Ende (84) gerichtet ist und eine Dichtheit mit einer ringförmigen Dichtung (91, 92) herstellen kann, wenn die Ringdichtung (91, 92) gegen die Schulter (86) in Anschlag gelangt, wobei die Ringdichtung (91, 92) mit Reibung und Dichtheit gleitend auf dem Pumpenkörper montiert ist und ohne seitliche Dichtheit in der Leitung (82) gleitet.
  17. Vorrichtung nach einem beliebigen der Ansprüche 12 bis 16, bei der der Hals (5) im oberen Bereich des Tanks (4) ausgebildet ist.
  18. Vorrichtung nach Anspruch 17, bei der der Tank (4) mindestens eine verformbare Wand (28, 61, 97) aufweist, die sich zwischen einer ersten Position, in der der Tank (4) ein maximales Innenvolumen hat, und einer zweiten Position, in der der Tank (4) ein Innenvolumen im wesentlichen gleich Null hat, verschieben kann, und weiter elastische Mittel (36) aufweist, die die verformbare Wand (28, 61, 97) in ihre zweite Position bringen, mit einer ausreichenden Kraft, um in der Nähe des Halses (5) einen Druck zu erzeugen, der größer ist als der Zerstäubungsdruck des Produkts bei Umgebungstemperatur, unabhängig von der Position der verformbaren Wand (28, 61).
  19. Vorrichtung nach Anspruch 18, bei der der Druck mindestens gleich Atmosphärendruck ist.
  20. Vorrichtung nach Anspruch 18, bei der der Druck mindestens 20 kPa höher als Atmosphärendruck ist.
  21. Vorrichtung nach einem beliebigen der Ansprüche 18 bis 20, bei der die verformbare Wand einen steifen Boden (26, 63) und eine biegsame Seitenwand (24, 61) aufweist, wobei die elastischen Mittel (36) den steifen Boden (26, 63) zum Hals (5) hin beaufschlagen, und wenn das Volumen des im Tank (4) enthaltenen Produkts sich verringert, der Boden (26, 63) der verformbaren Wand sich zum Hals (5) bewegt, indem er nach und nach diese biegsame Seitenwand (24, 61) auf sich selbst umbiegt.
  22. Vorrichtung nach Anspruch 21, bei der der steife Boden (26) dick ist, um sein Wiederaufsteigen zum Hals (5) zu führen.
  23. Vorrichtung nach Anspruch 21 oder 22, bei der der Tank in einer steifen Hülle (31, 70) angeordnet ist, deren Form im wesentlichen komplementär zur Seitenwand (24, 61) des Tanks (4) ist.
  24. Vorrichtung nach einem beliebigen der Ansprüche 12 bis 23, bei der der Hals (5) einen Ring (80) aufweist, der unumkehrbar in den Hals eingeklinkt ist, und der Ring die zerbrechliche Membran (85) und die Dichtmittel (86, 90) enthält.
  25. Vorrichtung nach einem beliebigen der Ansprüche 12 bis 24, bei der die Kappe (50) Mittel für den Luftdurchlaß (94, 96) aufweist, um bei der Montage der Kappe auf den Hals die zwischen der Kappe und den Dichtmitteln (86, 90) des Halses komprimierte Luft in die Atmosphäre entweichen zu lassen.
  26. Vorrichtung nach einem beliebigen der vorhergehenden Ansprüche, bei der der Tank (4, 100) eine periphere Seitenwand (100a) aufweist, die in Bezug auf den Hals (5) keine Drehsymmetrie aufweist, wobei ein Teil (5a) des Halses sich in der Nähe der Seitenwand befindet und die seitliche Düse (11) des Drückers zu diesem Teil (5a) des Halses hin ausgerichtet ist.
  27. Vorrichtung nach einem beliebigen der vorhergehenden Ansprüche, bei der die Kappe (50) in einem Ring (114) befestigt ist, der in den Hals (5) des Tanks (100) eingesetzt ist, wobei der Hals (5) eine kegelstumpfförmige innere Oberfläche (159) schwacher Kegelneigung aufweist, die sich nach außerhalb des Tanks (100) verbreitert, und der Ring (114) eine komplementäre Kegelstumpffläche besitzt, die auf der inneren Kegelstumpffläche des Halses (5) aufliegt, um die Schwingungen zu dämpfen.
  28. Vorrichtung nach einem beliebigen der vorhergehenden Ansprüche, bei der der Tank aus Polyäthylen mit geringer Dichte hergestellt wird, um die Schwingungen zu dämpfen.
  29. Vorrichtung nach einem beliebigen der vorhergehenden Ansprüche, bei der die Kappe (50) einen ersten Teil nahe dem Tank, dessen äußere Form um die Achse des Betätigungsorgans drehsymmetrisch ist, und einen zweiten Teil (51) entfernt vom Tank aufweist, dessen äußere Form nicht drehsymmetrisch ist, wobei der Kopf eine Einrastwand (143) im wesentlichen senkrecht zur Achse des Betätigungsorgans (12) aufweist, wobei die Einrastwand eine Öffnung (143a) mit einer im wesentlichen zur äußeren Form des ersten Teils der Kappe komplementären Form aufweist, wobei die Öffnung in Bezug auf das Betätigungsorgan des Betätigungskopfes zentriert ist, wobei der Drücker (10) lösbar auf das Betätigungsorgan aufgesetzt wird, wenn die Kappe axial in die Öffnung eingedrückt wird, und die Kappe auf dieser Einrastwand durch eine Drehbewegung des Tanks und der Kappe um die Achse des Betätigungsorgans verriegelt wird, wobei der Tank außerdem einen Bügel (106) nahe dem Betätigungskopf (1) aufweist, der in Bezug auf die Achse des Betätigungsorgans radial angeordnet ist, und der Betätigungskopf (1) einen orthoradialen Haken (107) aufweist, um den Bügel am Ende der Drehbewegung des Tanks und der Kappe festzuhalten.
  30. Vorrichtung nach einem beliebigen der vorhergehenden Ansprüche, bei der der Tank (100) Trägermittel (145) für kodierte Informationen aufweist, um auf den Tank kodierte Informationen einzuschreiben, und die elektronische Steuer- und Speiseschaltung (101) Lesemittel (146) aufweist, um die kodierten Informationen zu lesen, wobei die Lesemittel (146) mit Kontrollmitteln (139) verbunden sind, um die Betätigung des Betätigungskopfes in Abhängigkeit von den gelesenen Informationen zu erlauben oder nicht.
  31. Vorrichtung nach einem beliebigen der vorhergehenden Ansprüche, bei der die Mittel zur winkelmäßigen Positionierung der seitlichen Düse (111) Mittel (54), um der Kappe (50) eine in Bezug auf den Kopf (1) bestimmte Ausrichtung zu verleihen, und Führungsmittel (55) aufweisen, um die seitliche Düse des Drückers in einer Ebene zu führen, die eine besondere Ausrichtung in Bezug auf die Kappe hat.
  32. Vorrichtung nach Anspruch 31, bei der die Mittel (54), um der Kappe eine bestimmte Ausrichtung in Bezug auf den Kopf zu verleihen, ein Einklinkrelief (54), das auf der Kappe ausgebildet ist, und ein komplementäres Relief aufweisen, das im Kopf ausgebildet ist.
  33. Vorrichtung nach den Ansprüchen 1 bis 30, bei der die Mittel zur winkelmäßigen Positionierung der seitlichen Düse (111) Reliefs (155, 167a), die entsprechend auf dem Ring (114) und dem Hals (5) ausgebildet sind, um dem Ring eine bestimmte Winkelausrichtung in Bezug auf den Tank zu verleihen, wobei die Gewinde des Rings und der Kappe (50) zusammenwirken, um der Kappe eine in Bezug auf den Ring bestimmte winkelmäßige Ausrichtung zu verleihen, wobei die Mittel zur winkelmäßigen Ausrichtung außerdem Mittel (106, 107) aufweisen, um dem Tank eine in Bezug auf den Kopf (1) bestimmte Ausrichtung zu verleihen, und Führungsmittel (55) aufweisen, um die seitliche Düse des Drückers in einer Ebene zu führen, die eine besondere Ausrichtung in Bezug auf die Kappe hat.
  34. Vorrichtung nach Anspruch 33, bei der der Ring (114) und die Kappe (50) außerdem komplementäre Einklinkreliefs (168a, 200) enthalten, um der Kappe (50) eine in Bezug auf den Ring (114) präzise Winkelausrichtung zu verleihen.
  35. Vorrichtung nach einem der Ansprüche 2 bis 9 mit einem Nachfüllelement, das den mit seinem Tauchrohr (109) versehenen Tank (100) enthält.
  36. Vorrichtung nach Anspruch 8 mit einem Nachfüllelement, das den Tank (4) mit dem in seinen Hals (5) montierten Ring (114) enthält.
  37. Vorrichtung nach einem der Ansprüche 12 bis 25 mit einem Nachfüllelement, das den Tank (4) enthält.
  38. Vorrichtung nach Anspruch 24 mit einem Nachfüllelement, das den Tank (4) und den in den Hals (5) des Tanks montierten Ring (80) enthält.
  39. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Mittel (54) zur Winkelpositionierung auf der Kappe (50) ausgebildet sind.
  40. Vorrichtung nach Anspruch 39, dadurch gekennzeichnet, daß die Mittel (54) zur Winkelpositionierung ein senkrechtes Fenster (55) aufweisen, das in der Wand der Kappe ausgebildet ist.
EP92403276A 1991-12-13 1992-12-04 Nachfüllbare Vorrichtung zum Sprühen einer Flüssigkeit Expired - Lifetime EP0546898B1 (de)

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FR9115541A FR2684901B1 (fr) 1991-12-13 1991-12-13 Procede et dispositif evitant la formation de poches gazeuses dans un reservoir pour un produit fluide destine a etre pulverise ou distribue sans reprise d'air

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US5417258A (en) 1995-05-23
AU2987792A (en) 1993-06-17
EP0546898A1 (de) 1993-06-16
AU662775B2 (en) 1995-09-14
FR2684901B1 (fr) 1994-02-25
ATE136478T1 (de) 1996-04-15
FR2684901A1 (fr) 1993-06-18
DE69209794T2 (de) 1996-12-12
ES2088561T3 (es) 1996-08-16
DE69209794D1 (de) 1996-05-15
CA2085174A1 (en) 1993-06-14
JPH05330580A (ja) 1993-12-14

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