WO2004004920A1 - Recipient d'evacuation - Google Patents

Recipient d'evacuation Download PDF

Info

Publication number
WO2004004920A1
WO2004004920A1 PCT/JP2003/007660 JP0307660W WO2004004920A1 WO 2004004920 A1 WO2004004920 A1 WO 2004004920A1 JP 0307660 W JP0307660 W JP 0307660W WO 2004004920 A1 WO2004004920 A1 WO 2004004920A1
Authority
WO
WIPO (PCT)
Prior art keywords
piston
liquid
cylinder
valve body
diameter portion
Prior art date
Application number
PCT/JP2003/007660
Other languages
English (en)
Japanese (ja)
Inventor
Takashi Suzuki
Original Assignee
Kabushiki Kaisha Top
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
Family has litigation
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=WO2004004920(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Kabushiki Kaisha Top filed Critical Kabushiki Kaisha Top
Priority to DE60325363T priority Critical patent/DE60325363D1/de
Priority to AU2003241715A priority patent/AU2003241715B2/en
Priority to EP03736227A priority patent/EP1520631B1/fr
Publication of WO2004004920A1 publication Critical patent/WO2004004920A1/fr

Links

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 that stores a liquid such as a chemical solution and discharges the liquid by a pump action.
  • the present inventors have proposed various configurations of a discharge container for discharging a liquid such as a chemical solution, as disclosed in Japanese Patent Application Laid-Open No. 2002-183330.
  • These discharge containers include a container for storing a liquid, a cylinder provided therein, a first piston that slides inside the cylinder and is urged backward by a first spring, and a first piston.
  • a second piston that retracts while pressing and contracting the second spring when the vehicle advances. Then, when the first piston reaches a predetermined stroke, the liquid passage connecting the cylinder and the nozzle is opened, and the second piston advances by the urging force of the second spring, whereby the liquid in the cylinder is released. It is discharged from the nozzle.
  • the liquid in the container is discharged by the urging force of the second spring, and the up and down movement of the nozzle at the time of discharge is slight, so that a stable discharge state is always maintained. Can be.
  • An object of the present invention is to improve a discharge container, and more specifically, to provide a discharge container that can secure a stable discharge state with a simple configuration. Disclosure of the invention
  • a discharge container of the present invention comprises: a container for storing a liquid; a container which extends upward from above in the container and has a large-diameter portion above; A cylinder having an inclined portion that decreases in diameter toward the bottom, a small-diameter portion extending downward from the inclined portion, and an inflow port through which the liquid in the container flows into the small-diameter portion; A first piston disposed on the first piston, an actuator having a discharge port for pressing the first piston downward and discharging a liquid to the outside of the container when the first piston is pressed; A second piston slidably disposed on the portion and urged upward by a spring; and a first piston contacting the first piston and the second piston in a state in which the actuator is not pressed. Between the piston and the second piston That it has a spacing member for holding the interval.
  • the first piston is provided with a seal portion which is in liquid-tight contact with the inner peripheral surface of the large diameter portion over the entire circumference, and is disposed below the seal portion with an interval therebetween so as to move up and down together with the seal portion.
  • a flexible valve element which is in liquid-tight contact with the inner peripheral surface of the large diameter portion over the entire circumference in a state where the actuator is not pressed, and from the lower end of the valve element to the inclined portion.
  • the second piston has an inflow passage penetrating vertically, and an inflow valve provided in the inflow passage to allow liquid from below to pass therethrough and to block outflow of liquid from above.
  • the valve body of the first piston lowers the second piston via the liquid in the cylinder to compress the spring, and the protrusion is pressed downward.
  • the valve body is guided by the inclined portion and moves inward when contacting the inclined portion, a part of the valve body is separated from the inner peripheral surface of the cylinder.
  • the liquid in the cylinder is discharged from the discharge port through the liquid passage from the gap between the valve body and the cylinder by the biasing force of the pulling.
  • the second piston when the user presses the actuator, the second piston is pushed down by the liquid between the valve body and the second piston, The spring is compressed. Then, the projecting portion is guided by the inclined portion to open the valve body, and liquid is discharged from the discharge port through the liquid passage by the urging force of the spring. Therefore, when the liquid is ejected from the ejection port, the movement of the actuator is small, so that the liquid can be ejected accurately. Further, since the pressure at which the liquid is discharged is the biasing force of the spring, a stable discharge state can be always obtained.
  • a lower end edge of the valve body is formed in a horizontal plane.
  • the valve body is provided with a concave portion which is recessed inward and upward from a lower end edge, and a flexible filling member for filling the concave portion is attached to the concave portion, and a bottom surface of the filling member is provided.
  • the lower end edge of the valve body may be formed in a planar shape.
  • a storage hole into which the spacing member is loosely fitted may be provided in the center of the filling member.
  • the storage hole is deformed when the valve body is deformed by the protruding portion, so that the valve body is easily deformed. Therefore, a gap between the valve body and the inner wall of the cylinder can be easily secured, and the liquid can be discharged smoothly.
  • FIG. 1 is an explanatory cross-sectional view showing a discharge container as an example of an embodiment of the present invention
  • FIG. 2 is an explanatory diagram showing a valve element
  • FIGS. 3 a to 3 c are explanatory cross-sectional views showing the operation of the discharge container in FIG.
  • FIG. 4 is an explanatory view showing the relationship between the cylinder and the valve element
  • FIGS. 5a to 5e are explanatory sectional views showing the main parts of a discharge container according to another embodiment.
  • the discharge container 1 of the present embodiment includes a container 3 for storing a liquid 2, and an actuator 4 attached to an upper end of the container 3.
  • the actuator 4 is provided with a nozzle 4a (discharge port) from which the liquid 2 in the container 3 is discharged.
  • a cylinder 5 is housed inside the container 3. As shown in FIG. 1, the cylinder 5 extends downward from the upper end of the container 3 and has a large-diameter portion 5a at the upper portion and a small-diameter portion 5b at the lower portion. Is provided. The boundary between the large-diameter portion 5a and the small-diameter portion 5b is an inclined portion 5c whose diameter decreases downward. An inlet 6 extends from below the small diameter portion 5 b toward the bottom surface of the container 3. A first piston 7 having a valve element 8, a second piston 9, a spring 10, and a spacing member 11 are housed in the cylinder 5. The first piston 7 is slidable up and down by an actuator 4.
  • the valve body 8 is moved up and down together with the first piston 7 by the actuator 4.
  • the large 2 piston 9 is pushed down by the liquid 2 in the cylinder 5 when the first piston 7 is pushed down by the actuator 4.
  • the spring 10 urges the second piston 9 upward.
  • the spacing member 11 is disposed between the valve body 8 and the second piston 9.
  • the first piston 7 and the valve element 8 are both formed of a synthetic resin having flexibility, and are slidable in the large diameter portion 5 a of the cylinder 5.
  • the first piston 7 is formed in an umbrella shape downward, and has a seal portion 7a that abuts the inner peripheral surface of the large diameter portion 5a in a liquid-tight manner over the entire circumference, and a seal portion 7a. It has a shaft 7b extending above a, and a liquid passage 7c provided in the shaft 7b.
  • the valve body 8 includes a valve portion 8a formed in a dome shape downward, a pair of protrusions 8b extending below the valve portion 8a, and a valve. It has a shaft portion 8c extending above the portion 8a, and a liquid passage 8d provided in the shaft portion 8c.
  • the second piston 9 is formed of a flexible synthetic resin, and is slidable in the small diameter portion 5b of the cylinder 5. Also, the second piston 9 is formed in an umbrella shape upward and has a seal portion 9a that abuts the inner peripheral surface of the small diameter portion 5b in a liquid-tight manner over the entire circumference, and penetrates vertically through the center portion.
  • Inflow passage 12 having lower small-diameter portion 12a and upper large-diameter portion 12b, and check pole 13 disposed in large-diameter portion 12b of inflow passage 12 (inflow valve) It is equipped with.
  • the check pole 13 blocks the small diameter portion 12 a of the inflow passage 12 by its own weight, and does not allow the liquid 2 to flow downward from the small diameter portion 12 a when pressure is applied to the liquid 2 from above. .
  • the liquid When the body 2 is sucked up, the check pole 13 rises from the small diameter portion 12a, and the liquid 2 is filled in the cylinder 5 between the valve body 8 and the second piston 9.
  • the spacing member 11 is sandwiched between the valve element 8 and the second piston 9 when the actuator 4 is not pushed down.
  • a communication groove 11a is formed in the bottom surface for communicating the inflow passage 12 of the second piston 9 with the inside of the cylinder 5 above the second piston 9.
  • the actuator 4 has a shaft portion 8c of the first piston 7 fitted in a liquid passage 4b provided therein.
  • the nozzle 4a is provided at the tip of the liquid passage 4b, and serves to atomize the liquid 2 discharged through the liquid passage 4b.
  • the protruding portion 8b of the valve body 8 comes into contact with the inclined portion 5c of the cylinder 5. From here When the actuator 4 is pushed down, the protruding portion 8b curves inward along the inclined portion 5c. As a result, the valve portion 8a is also bent inward, so that a gap 14 is generated between the inner wall of the cylinder 5 and the valve portion 8a as shown in FIG. Since the liquid 2 in the cylinder 5 is urged by the spring 10 via the second piston 9, the liquid 2 is pushed upward from the gap 14 formed between the inner wall of the cylinder 5 and the valve portion 8a. It is.
  • the liquid 2 thus extruded passes through the liquid passage 8 d provided in the shaft 8 c of the valve body 8, and passes through the liquid passage 7 c provided in the shaft 7 b of the first piston 7. Then, the liquid passes through the liquid passage 4b inside the actuator 4 and is atomized by the nozzle 4a to be discharged to the outside.
  • the second piston 9 is raised by the spring 10. Along with this, the valve body 8 and the first piston 7 are pushed up via the spacing member 11. At this time, the seal portion 7a of the first piston 7 and the valve portion 8a of the valve body 8 slide in a state of being in a liquid-tight contact with the inner peripheral surface of the large diameter portion 5a of the cylinder 5 over the entire circumference. Therefore, the liquid 2 in the cylinder 5 between the valve body 8 and the second piston 9 moves from the small-diameter portion 5b to the large-diameter portion 5a, so that the pressure in the cylinder 5 becomes negative.
  • the pressure of the liquid 2 in the cylinder 5 below the second piston 9 becomes higher than the liquid 2 between the valve body 8 and the second piston 9. Therefore, the liquid 2 pushes up the check pole 13, and the lower liquid 2 enters from the inflow passage 12 of the second piston 9. Thereby, the cylinder 5 between the valve element 8 and the second piston 9 is filled through the communication groove 11 a of the spacing member 11.
  • the cylinder 2 is filled with the liquid 2 and the actuator 4 is pushed up by the single spring 10 so that the structure is simple. It becomes.
  • the shape of the cylinder 5 is gradually reduced from the upper part to the lower part, such as the large diameter part 5a, the inclined part 5c, and the small diameter part 5b. Has formed. Therefore, when the cylinder 5 is injection-molded by a mold (not shown), the configuration of the mold can be simplified and the injection molding can be facilitated.
  • a discharge container 1 ' accordinging to another embodiment of the present invention will be described with reference to FIGS. 5A and 5B.
  • a substantially cylindrical filling member 15 is mounted inside the valve body 8 (recess).
  • the filling member 15 is formed of a flexible synthetic resin similarly to the valve body 8, and a storage hole 15a into which the spacing member 11 is loosely fitted is provided at the center.
  • the filling member 15 has a flat back surface, and is formed at the same height as the lower edge of the valve portion 8a of the valve body 8. Since other configurations are the same as those in the above-described embodiment, the same reference numerals as those in the above-described embodiment are used in the drawings to omit detailed description.
  • the discharge container 1 ′ of the other embodiment even if gas in the container is mixed as bubbles A between the valve body 8 and the second piston 9, the filling is performed. It adheres to the bottom of member 15.
  • the actuator 4 pushes down the actuator 4 and a gap is formed between the valve portion 8 a of the valve body 8 and the large-diameter portion 5 a of the cylinder 5, bubbles A are discharged together with the liquid 2 to be discharged. It is discharged to. Therefore, the next time the user depresses the actuator 4, the bubble A disappears between the valve body 8 and the second piston 9, so that an accurate amount of the liquid 2 can be discharged.
  • the filling member 15 since the filling member 15 has a storage hole 15a at the center, the valve portion 8a of the valve body 8 is Therefore, when deformed, the deformation of the valve portion 8a is not prevented.
  • the filling member 15 having the storage hole 15a is attached to the valve body 8, but the present invention is not limited to this, and as shown in FIGS. 5c and 5d.
  • the filling member 15 ′ without the storage hole 15 a may be attached to the valve body 8. At this time, it is preferable that the spacing member 11 be shortened by the thickness of the filling member 15 '.
  • the bottom surface of the valve body 8 itself may be flat.
  • the present invention is useful for a discharge container that stores a liquid such as a chemical solution and discharges the liquid by a pump action.

Landscapes

  • 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).
PCT/JP2003/007660 2002-07-09 2003-06-17 Recipient d'evacuation WO2004004920A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE60325363T DE60325363D1 (de) 2002-07-09 2003-06-17 Austragsbehälter
AU2003241715A AU2003241715B2 (en) 2002-07-09 2003-06-17 Discharge container
EP03736227A EP1520631B1 (fr) 2002-07-09 2003-06-17 Recipient d'evacuation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002200570A JP3768461B2 (ja) 2002-07-09 2002-07-09 吐出容器
JP2002-200570 2002-07-09

Publications (1)

Publication Number Publication Date
WO2004004920A1 true WO2004004920A1 (fr) 2004-01-15

Family

ID=30112519

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2003/007660 WO2004004920A1 (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)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Families Citing this family (2)

* 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.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4053089A (en) * 1975-08-01 1977-10-11 Lever Brothers Company Pump for dispensing liquids
WO2002002241A1 (fr) * 2000-07-03 2002-01-10 Kabushiki Kaisha Top Recipient de decharge

Family Cites Families (3)

* 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
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4053089A (en) * 1975-08-01 1977-10-11 Lever Brothers Company Pump for dispensing liquids
WO2002002241A1 (fr) * 2000-07-03 2002-01-10 Kabushiki Kaisha Top Recipient de decharge
JP2002018330A (ja) 2000-07-03 2002-01-22 Top:Kk 吐出容器

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1520631A4

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Also Published As

Publication number Publication date
AU2003241715A1 (en) 2004-01-23
JP2004041865A (ja) 2004-02-12
TW200400854A (en) 2004-01-16
EP1520631B1 (fr) 2008-12-17
EP1520631A1 (fr) 2005-04-06
TWI230634B (en) 2005-04-11
EP1520631A4 (fr) 2007-10-24
JP3768461B2 (ja) 2006-04-19
AU2003241715B2 (en) 2007-07-05
MY134530A (en) 2007-12-31
DE60325363D1 (de) 2009-01-29

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