EP1520631B1 - Recipient d'evacuation - Google Patents

Recipient d'evacuation Download PDF

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Publication number
EP1520631B1
EP1520631B1 EP03736227A EP03736227A EP1520631B1 EP 1520631 B1 EP1520631 B1 EP 1520631B1 EP 03736227 A EP03736227 A EP 03736227A EP 03736227 A EP03736227 A EP 03736227A EP 1520631 B1 EP1520631 B1 EP 1520631B1
Authority
EP
European Patent Office
Prior art keywords
piston
solution
valve member
cylinder
diameter portion
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
EP03736227A
Other languages
German (de)
English (en)
Japanese (ja)
Other versions
EP1520631A1 (fr
EP1520631A4 (fr
Inventor
Takashi c/o KABUSHIKI KAISHA TOP SUZUKI
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.)
Top KK
Original Assignee
Top KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=30112519&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1520631(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Top KK filed Critical Top KK
Publication of EP1520631A1 publication Critical patent/EP1520631A1/fr
Publication of EP1520631A4 publication Critical patent/EP1520631A4/fr
Application granted granted Critical
Publication of EP1520631B1 publication Critical patent/EP1520631B1/fr
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
    • B05B11/01—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
    • B05B11/1038—Pressure accumulation pumps, i.e. pumps comprising a pressure accumulation chamber
    • B05B11/1039—Pressure accumulation pumps, i.e. pumps comprising a pressure accumulation chamber the outlet valve being mechanically opened after a defined accumulation stroke
    • 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

Definitions

  • the present invention relates to a discharge container which contains solutions such as a drug solution and which discharges the solution by a pump function.
  • This discharge container which discharges solutions such as a drug solution.
  • This discharge container includes: a container which contains the solution; a cylinder disposed in the container: a first piston which slides/moves in the cylinder and which is urged in a backward direction by a first spring; and a second piston moving backwards while compressing a second spring, when the first piston proceeds.
  • a solution passage for connecting the cylinder to a nozzle opens.
  • the second piston proceeds by an urging force of the second spring, the solution in the cylinder is discharged from the nozzle.
  • the solutions contained in this type of the discharge container range in various fields such as a medical field and cosmetics field. Since the solutions include many inexpensive solutions, there has also been a demand for a simpler constitution and easy manufacturing with respect to the container for containing the solution.
  • An object of the present invention is to improve the discharge container.
  • an object is to provide a discharge container which has a simple constitution but which can secure a stable discharge state.
  • a discharge container comprising a container which contains a solution, a cylinder which is extended downwards from above in the container and which includes a large-diameter portion in an upper part and which also includes a slope portion tapered downwards from the large-diameter portion, a small-diameter portion extended downwards from the slope portion, and an inflow port for allowing the solution in the container to flow into the small-diameter portion, a first piston slidably disposed in the large-diameter portion, an actuator which presses down the first piston and which includes a discharge port for discharging the solution to the outside of the container, when the first piston is pressed, a second piston which is slidably disposed in the small-diameter portion and urged upwards by a spring, and an interval hold member which abuts on the first and second pistons and which holds a predetermined interval between the first and second pistons in a non-depressed state of the actuator.
  • the first piston includes a seal portion which abuts over a whole inner peripheral surface of the large-diameter portion in a liquid-tight manner, a valve member which is disposed at an interval below the seal portion and which is vertically moved together with the seal portion and which abuts over the whole inner peripheral surface of the large-diameter portion in the liquid-tight manner in the non-depressed state of the actuator and which has flexibility, a protrusion which extends downwards to the slope portion from a lower end of the valve member, and a solution passage for connecting a space between the seal portion and the valve member to the discharge port through the inside.
  • the second piston includes an inflow passage which vertically passes through the second piston, and an inflow valve which is disposed in the inflow passage and which allows the solution from below to pass and which blocks outflow of the solution from above.
  • the valve member of the first piston moves down the second piston via the solution in the cylinder to compress the spring.
  • the protrusion is guided by the slope portion and moved inwards to detach a part of the valve member from the inner peripheral surface of the cylinder.
  • the second piston discharges the solution in the cylinder via the discharge port through the solution passage from the interval between the valve member and the cylinder by an urging force of the spring.
  • the discharge container of the present invention when a user depresses the actuator, the solution between the valve member and the second piston presses down the second piston, and the spring is compressed. Subsequently, the protrusion is guided by the slope portion to open the valve member, and the solution is discharged from the discharge port via the solution passage by the urging force of the spring. Therefore, when the solution is discharged from the discharge port, the actuator moves little, and therefore the solution can exactly be discharged. Since a pressure for discharging the solution is the urging force of the spring, a stable discharge state can constantly be obtained.
  • a lower edge of the valve member is preferably formed in a flat shape in a horizontal direction.
  • a concave portion concaved inwards and upwards from the lower edge is disposed in the valve member, a filling member which has the flexibility and with which the concave portion is filled is attached to the concave portion, and a bottom surface of the filling member and the lower edge of the valve member may be formed in the flat shapes.
  • the bottom surface of the valve member or the filling member is formed in the flat shape. Accordingly, even when bubbles are mixed in the cylinder, the solution in the cylinder is pushed out by the second piston, and the bubbles are discharged to the outside via the valve member. Therefore, when the actuator is depressed next, the solution can be discharged without any bubble in the cylinder.
  • a containing hole in which the interval hold member is fit with a play may also be disposed in a middle of the filling member.
  • FIG. 1 is an explanatory sectional view showing a discharge container according to one example of an embodiment of the present invention
  • FIG. 2 is an explanatory view showing a valve member
  • FIGS. 3a to c are explanatory sectional views showing an operation of the discharge container of FIG. 1
  • FIG. 4 is an explanatory view showing a relation between a cylinder and the valve member
  • FIGS. 5a to e are explanatory sectional views showing a main part of the discharge container according to another embodiment.
  • a discharge container 1 of the present embodiment includes: a container 3 which contains a solution 2; and an actuator 4 attached to an upper end of the container 3.
  • a nozzle 4a (discharge port) via which the solution 2 in the container 3 is discharged is disposed in the actuator 4.
  • a cylinder 5 is contained inside the container 3. As shown in FIG. 1 , the cylinder 5 is extended downwards from an upper end of the container 3 inside, a large-diameter portion 5a is disposed in an upper part of the container, and a small-diameter portion 5b is disposed in a lower part of the container. A boundary portion between the large-diameter portion 5a and small-diameter portion 5b forms a slope portion 5c which is tapered downwards.
  • An inflow port 6 is extended toward a bottom surface of the container 3 from below the small-diameter portion 5b.
  • a first piston 7 including a valve member 8, a second piston 9, a spring 10, and an interval hold member 11 are contained in the cylinder 5.
  • the first piston 7 can vertically be slid by the actuator 4.
  • the valve member 8 is vertically moved together with the first piston 7 by the actuator 4.
  • the second piston 9 is pressed down by the solution 2 in the cylinder 5.
  • the spring 10 urges upwards the second piston 9.
  • the interval hold member 11 is disposed between the valve member 8 and second piston 9.
  • the first piston 7 and valve member 8 are both formed by a synthetic resin which has flexibility, and can slide in the large-diameter portion 5a of the cylinder 5.
  • the first piston 7 includes: a seal portion 7a which is formed downwards in an umbrella shape and which abuts over a whole inner peripheral surface of the large-diameter portion 5a in a liquid-tight manner; a shaft portion 7b extended upwards from the seal portion 7a; and a solution passage 7c disposed in the shaft portion 7b.
  • a seal portion 7a which is formed downwards in an umbrella shape and which abuts over a whole inner peripheral surface of the large-diameter portion 5a in a liquid-tight manner
  • a shaft portion 7b extended upwards from the seal portion 7a
  • a solution passage 7c disposed in the shaft portion 7b.
  • the valve member 8 includes: a valve portion 8a formed downwards in a dome shape; a pair of protrusions 8b extended downwards from the valve portion 8a; a shaft portion 8c extended upwards from the valve portion 8a; and a solution passage 8d disposed in the shaft portion 8c.
  • the second piston 9 is formed by a synthetic resin which has flexibility, and can slide in the small-diameter portion 5b of the cylinder 5.
  • the second piston 9 includes: a seal portion 9a which is formed upwards in the umbrella shape and which abuts over the whole inner peripheral surface of the small-diameter portion 5b in the liquid-tight manner; an inflow passage 12 which vertically passes through a center portion and which includes a lower small-diameter portion 12a and upper large-diameter portion 12b; and a check ball 13 (inflow valve) disposed in the large-diameter portion 12b of the inflow passage 12.
  • the check ball 13 closes the small-diameter portion 12a of the inflow passage 12 by its own weight.
  • the interval hold member 11 is held between the valve member 8 and second piston 9, when the actuator 4 is not depressed.
  • a connection groove 11a for connecting the inflow passage 12 of the second piston 9 to the inside of the cylinder 5 above the second piston 9 is formed in a bottom surface portion of the hold member (11).
  • the shaft portion 7b of the first piston 7 is fit in a solution passage 4b disposed in the actuator.
  • the nozzle 4a is disposed in a tip end of the solution passage 4b, and atomizes the solution 2 discharged via the solution passage 4b.
  • the protrusions 8b of the valve member 8 abut on the slope portion 5c of the cylinder 5.
  • the protrusions 8b are curved inwards along the slope portion 5c. Accordingly, since the valve portion 8a is also curved inwards, as shown in FIG. 4 , a gap 14 is formed between the inner wall of the cylinder 5 and the valve portion 8a. Since the solution 2 in the cylinder 5 is urged by the spring 10 via the second piston 9, the solution 2 is pushed out upwards from the gap 14 generated between the inner wall of the cylinder 5 and the valve portion 8a.
  • the solution 2 pushed out in this manner passes through the solution passage 8d disposed in the shaft portion 8c of the valve member 8, passes through the solution passage 7c disposed in the shaft portion 7b of the first piston 7, further passes through the solution passage 4b in the actuator 4, is atomized by the nozzle 4a, and is discharged to the outside.
  • the pressure of the solution 2 in the cylinder 5 below the second piston 9 is higher than that of the solution 2 between the valve member 8 and second piston 9. Therefore, the solution 2 presses up the check ball 13, and the solution 2 below enters the inflow passage 12 of the second piston 9. Accordingly, the cylinder 5 between the valve member 8 and second piston 9 is filled with the solution via the connection groove 11a of the interval hold member 11.
  • the discharge container 1 of the present embodiment since the fill-in of the cylinder 5 with the solution 2 and the push-up of the actuator 4 are performed by one spring 10, the constitution is simplified.
  • the large-diameter portion 5a, slope portion 5c, and small-diameter portion 5b are formed upwards from below, and the shape of the cylinder 5 is formed in such a manner that the diameter is gradually reduced. Therefore, when the cylinder 5 is injected/molded by a metal mold (not shown), the constitution of the metal mold can be simplified, and injection molding can be facilitated.
  • a discharge container 1' according to another embodiment of the present invention will be described with reference to FIGS. 5a and 5b .
  • a substantially cylindrical filling member 15 is attached to an inner portion (concave portion) of the valve member 8.
  • the filling member 15 is formed by the flexible synthetic resin, and a containing hole 15a, in which the interval hold member 11 is fit with play, is disposed in the middle of the member.
  • the filling member 15 is formed in the flat shape on a back-surface side, and formed in the same height as that of the lower edge of the valve portion 8a of the valve member 8. It is to be noted that the other constitution is similar to that of the above-described embodiment, and is therefore denoted with the same reference numerals as those of the above-described embodiment, and detailed description thereof is omitted.
  • the discharge container 1' of the other embodiment As shown in FIG. 5a , even when gas inside the container is mixed as a bubble A between the valve member 8 and second piston 9, the gas adheres to the bottom surface of the filling member 15. Subsequently, when the user depresses the actuator 4, and when the gap is generated between the valve portion 8a of the valve member 8 and the large-diameter portion 5a of the cylinder 5, the bubble A is discharged to the outside together with the discharged solution 2. Therefore, when the user next depresses the actuator 4, the bubble A disappears between the valve member 8 and second piston 9, and therefore an exact amount of the solution 2 can be discharged.
  • the containing hole 15a is disposed in the middle of the filling member 15. Therefore, when the seal portion 8a of the valve member 8 is deformed by the protrusions 8b, the deformation of the seal portion 8a is not hindered.
  • the filling member 15 including the containing hole 15a is attached to the valve member 8, but the present invention is not limited to this.
  • a filling member 15' in which the containing hole 15a is not disposed, may also be attached to the valve member 8.
  • the interval hold member 11 is preferably shortened by the thickness of the filling member 15'.
  • the bottom-surface portion of the valve member 8 itself may also be formed in the flat shape. The bottom surface of the valve member 8 or filling member 15 is formed in the flat shape. Therefore, even when the bubble A is mixed between the valve member 8 and second piston 9, the bubble A can be discharged to the outside together with the solution 2 at the discharge time of the solution 2.
  • the present invention is useful as a discharge container which contains solutions such as a drug solution and which discharges the solution by a pump function.

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  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Closures For Containers (AREA)

Abstract

L'invention concerne un récipient d'évacuation garantissant une évacuation stable à l'aide d'une structure simple. Un récipient (1) d'évacuation comprend un récipient (3) destiné à recevoir un liquide (2), et un actionneur (4). Un cylindre (5) est fourni dans le récipient (3). Le cylindre (5) comprend une section (5a) de grand diamètre, une section inclinée (5c) et une section (5b) de petit diamètre. Un premier piston (7) comprenant un corps (8) de valve est placé dans la section (5a) de grand diamètre, et un second piston (9) est placé dans la section (5b) de petit diamètre, le second piston étant poussé par un ressort (10). Une partie saillante (8b) est formée sur la partie inférieure d'une section (8a) de valve du corps (8) de la valve, et un élément (11) de retenue d'espacement est placé entre le corps (8) de la valve et le second piston (9). Lorsque l'actionneur (4) est comprimé vers le bas, le second piston (9) est comprimé vers le bas par le liquide (2) dans le cylindre (5) jusqu'à ce que la partie saillante (8b) vienne en contact avec la section inclinée (5c). Lorsque la partie saillante (8b) vient en contact avec la section inclinée (5c) et est guidée vers l'intérieur, un espace est créé entre la section (8a) de valve du corps (8) de la valve et la paroi intérieure du cylindre (5), et le liquide (2) est évacué par une buse (4a) par la force de poussée du ressort (10).

Claims (4)

  1. Récipient distributeur (1 ; 1') comprenant : un récipient (3) qui contient une solution (2) ; un cylindre (5) qui s'étend vers le bas depuis une partie supérieure dans le récipient (3) et qui comprend une portion à grand diamètre (5a) dans une partie supérieure et qui comprend également une portion en pente (5c) qui se rétrécit vers le bas depuis la portion à grand diamètre (5a), une portion à petit diamètre (5b) qui s'étend vers le bas depuis la portion en pente (5c) et un orifice d'entrée (6) pour permettre à la solution (2) présente dans le récipient (3) de s'écouler dans la portion à petit diamètre (5b) ; un premier piston (7) disposé de façon glissante dans la portion à grand diamètre (5b) ; un actionneur (4) qui presse le premier piston (7) vers le bas et qui comprend un orifice d'évacuation (4a) pour projeter la solution (2) à l'extérieur du récipient (3) lorsque le premier piston (7) est presssé ; un second piston (9) qui est disposé de manière glissante dans la portion à petit diamètre (5b) et poussé vers le haut par un ressort (10) ; et un élément de maintien de distance (11) qui bute sur les premier et second pistons (7, 9) et qui maintient une distance prédéterminée entre les premier et second pistons (7, 9) dans un état non enfoncé de l'actionneur (4),
    le premier piston (7) comprenant : une partie joint (7a) qui bute sur toute la surface périphérique intérieure de la portion à grand diamètre (5a) d'une manière étanche aux liquides ; un élément formant valve (8) qui est disposé à distance sous la partie joint (7a) et qui est déplacé verticalement en même temps que le partie joint (7a) et qui bute sur toute la surface périphérique intérieure de la portion à grand diamètre (5a) d'une manière étanche aux liquides dans l'état non enfoncé de l'actionneur (4) et qui a de la souplesse ; une protubérance (8b) qui s'étend vers le bas jusqu'à la portion en pente (5c) depuis une extrémité inférieure de l'élément formant valve (8) ; et un passage pour solution (7c) pour relier un espace situé entre la partie joint (7a) et l'élément formant valve (8) à l'orifice d'évacuation (4a) par l'intérieur,
    le second piston (9) comprenant : un passage d'entrée (12) qui traverse verticalement le second piston (9) ; et une valve d'entrée (13) qui est disposée dans le passage d'entrée (12) et qui permet à la solution (2) de passer par en dessous et qui bloque la sortie de la solution (2) par au-dessus,
    dans lequel l'élément formant valve (8) du premier piston (7) déplace le second piston (9) vers le bas par l'intermédiaire de la solution (2) présente dans le cylindre (5) pour comprimer le ressort (10), lorsque l'actionneur (4) est enfoncé ; la protubérance (8b) de l'élément formant valve (8) est guidée par la portion en pente (5c) et déplacée vers l'intérieur pour détacher une partie de l'élément formant valve (8) de la surface périphérique intérieure du cylindre (5), lorsque la protubérance (8b) est pressée vers le bas pour buter sur la portion en pente (5c) ; et le second piston (9) fait passer la solution (2) dans le cylindre (5) via l'orifice d'évacuation (4a) et par le passage pour solution (7c) depuis l'espace situé entre l'élément formant valve (8) et le cylindre (5) par une force de poussée du ressort (10).
  2. Récipient distributeur (1, 1') selon la revendication 1, dans lequel un bord inférieur de l'élément formant valve (8) a une forme plate dans une direction horizontale.
  3. Récipient distributeur (1') selon la revendication 1, dans lequel une partie concave, tournée vers l'intérieur et vers le haut depuis le bord inférieur est disposée dans l'élément formant valve (8), un élément de remplissage (15) qui est souple et avec lequel la partie concave est remplie est solidaire de la partie concave, et une surface inférieure de l'élément de remplissage (15) et le bord inférieur de l'élément formant valve (8) ont une forme plate.
  4. Récipient distributeur (1') selon la revendication 3, dans lequel un trou de rétention (15a) dans lequel l'élément de maintien de distance (11) est logé avec du jeu est prévu au milieu de l'élément de remplissage (15).
EP03736227A 2002-07-09 2003-06-17 Recipient d'evacuation Expired - Lifetime EP1520631B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2002200570 2002-07-09
JP2002200570A JP3768461B2 (ja) 2002-07-09 2002-07-09 吐出容器
PCT/JP2003/007660 WO2004004920A1 (fr) 2002-07-09 2003-06-17 Recipient d'evacuation

Publications (3)

Publication Number Publication Date
EP1520631A1 EP1520631A1 (fr) 2005-04-06
EP1520631A4 EP1520631A4 (fr) 2007-10-24
EP1520631B1 true EP1520631B1 (fr) 2008-12-17

Family

ID=30112519

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03736227A Expired - Lifetime EP1520631B1 (fr) 2002-07-09 2003-06-17 Recipient d'evacuation

Country Status (7)

Country Link
EP (1) EP1520631B1 (fr)
JP (1) JP3768461B2 (fr)
AU (1) AU2003241715B2 (fr)
DE (1) DE60325363D1 (fr)
MY (1) MY134530A (fr)
TW (1) TWI230634B (fr)
WO (1) WO2004004920A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5102690B2 (ja) * 2008-04-23 2012-12-19 キタノ製作株式会社 定量注出容器
FR3002293B1 (fr) 2013-02-15 2015-04-10 Aptar France Sas Pompe a precompression amelioree.
CN114981088A (zh) * 2020-01-30 2022-08-30 惠普发展公司，有限责任合伙企业 液体废物容器

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1804838A1 (de) * 1968-10-24 1970-06-11 Schlossar Edmund Fluessigkeitszerstaeuber mit handbetaetigter Druckerzeugungseinrichtung
US4053089A (en) * 1975-08-01 1977-10-11 Lever Brothers Company Pump for dispensing liquids
US4325499A (en) * 1980-10-31 1982-04-20 Ethyl Products Company Extended spray pump
US4693675A (en) * 1986-01-16 1987-09-15 The Pharmasol Corporation Non-throttling discharge pump
JP3403702B2 (ja) 2000-07-03 2003-05-06 株式会社トップ 吐出容器

Also Published As

Publication number Publication date
TWI230634B (en) 2005-04-11
DE60325363D1 (de) 2009-01-29
EP1520631A1 (fr) 2005-04-06
MY134530A (en) 2007-12-31
EP1520631A4 (fr) 2007-10-24
TW200400854A (en) 2004-01-16
AU2003241715B2 (en) 2007-07-05
JP2004041865A (ja) 2004-02-12
WO2004004920A1 (fr) 2004-01-15
JP3768461B2 (ja) 2006-04-19
AU2003241715A1 (en) 2004-01-23

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