WO2003099453A1 - Dispositif de vaporisation de liquide de type accumulateur de pression - Google Patents
Dispositif de vaporisation de liquide de type accumulateur de pression Download PDFInfo
- Publication number
- WO2003099453A1 WO2003099453A1 PCT/JP2002/009584 JP0209584W WO03099453A1 WO 2003099453 A1 WO2003099453 A1 WO 2003099453A1 JP 0209584 W JP0209584 W JP 0209584W WO 03099453 A1 WO03099453 A1 WO 03099453A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- piston
- cylinder
- liquid
- hollow stem
- passage
- Prior art date
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
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
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- 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
- B05B11/1023—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem
- B05B11/1025—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem a spring urging the outlet valve in its closed position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
-
- 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
- B05B11/1073—Springs
- B05B11/1077—Springs characterised by a particular shape or material
Definitions
- the present invention relates to a pressure accumulating type liquid ejector, and is intended to advantageously prevent liquid leakage in a cylinder of the ejector.
- a so-called aerosol type ejector in which a dispersion medium is filled in a container together with a pressurized medium is frequently used. Due to the high manufacturing cost of such an ejector, the pressurized medium often remains in the container even after all of the dispersion medium has been used up. It is indispensable to discharge the pressurized medium by pressing. However, disposal of the container is time-consuming, and there is a concern that the release of the pressurized medium into the atmosphere may lead to environmental pollution.
- This type of ejector has a suction port that communicates with the inside of the container, a cylinder fixed and held at the mouth of the container, a piston disposed in the cylinder, and mutual contact and separation of the piston.
- a piston guide that opens and closes a passage through which the liquid to be jetted passes, a hollow stem that holds one end of the piston guide and the other end of which is connected to the back of the piston via a flexible member, and engages with the hollow stem
- a pressure cap provided with a nozzle for ejecting the contents flowing out through the internal passage, and a pumping means for repeatedly applying an intermittent load to the pressure cap to suction and pressurize the contents.
- the piston and the piston guide are held by elastic members (springs for adjusting the internal pressure and springs for suction and pressurization) sandwiching them from both sides, and in a state where no load is applied to the pressing cap.
- the elastic force of the elastic member is adjusted so that the piston and the piston guide come into contact with each other and close the passage through which the liquid passes.
- one of the elastic member for adjusting the internal pressure and the spring for applying the suction pressure is used. It is effective to reduce the water content, but in this case, the contact pressure between the piston and the piston guide decreases, causing liquid leakage in the cylinder and making it difficult to efficiently eject the contents. There are cases.
- the end of the piston forms a substantially flat cut end, for example, the end is brought into contact with a step surface provided in the cylinder to make the end in the cylinder.
- the root of the step surface may cause deformation or damage to the end of the piston, resulting in reduced airtightness in the cylinder and entrapment of air. As a result, a large sealing effect was not always obtained.
- the problem to be solved by the present invention is to solve the above-mentioned problems, and to provide a novel pressure accumulating liquid ejector capable of ejecting liquid without causing liquid leakage inside the cylinder. There is a suggestion.
- a pressure accumulating liquid ejector has a suction port communicating with a container containing a liquid to be ejected, and can be attached to an opening of the container.
- a piston that contacts the end of the piston during operation of the piston and regulates the amount of displacement thereof; and pushing the piston to communicate the space with the internal passage of the stem to push the liquid.
- a discharge valve that discharges the liquid from the space area to the outside, and a suction valve that draws the liquid into the space area by communicating the space area and the suction port of the cylinder by a return operation of the piston.
- An annular recess is formed at an end of the piston that comes into contact with the stopper along an outer peripheral edge of the end.
- the piston disposed in the cylinder is slid by the pushing force from the hollow stem and the elastic force from the elastic member to increase or decrease the pressure in the space formed between the piston and the cylinder.
- the amount of displacement of the piston in the cylinder is regulated by the end of the piston coming into contact with a stop formed by a step surface or the like provided in the cylinder.
- the pressure accumulating liquid ejector covers an opening of a cylinder disposed at a position facing the suction port with a part of the hollow stem being exposed, so that the exposed portion can be pushed and returned. It is possible to add a force par member for holding the hollow stem so as to be possible, so that each member can be integrated as a module by this cover member.
- a pressure accumulating liquid ejector includes a cylinder having a suction port communicating with the inside of a container, the cylinder being attachable to the mouth of the container via a base member, and a cylinder disposed in the cylinder.
- a piston having a passage penetrating in the direction along the axis of the piston, and being arranged through the passage of the piston to open and close the passage by mutual contact and separation, and to cooperate with the cylinder and the piston to absorb and pressurize the liquid.
- a piston guide that forms a space area for the valve, a check valve that opens the suction port of the cylinder only when liquid is sucked, and a slidable fitting that maintains a liquid-tight state outside the biston
- a hollow stem that engages the end of the piston guide, a first elastic member that presses the piston guide against the piston to maintain the piston passage closed, and presses the piston against the piston guide.
- a second elastic member for adjusting the ejection pressure of the contents, positioning the piston in the cylinder before the ejection of the contents, and increasing the contact surface pressure between the piston and the piston guide to close the passage. It is characterized by providing a stopper for maintaining.
- the contents can be ejected by smoothly operating with a small operation force without liquid leakage inside the cylinder. Also, since the number of parts can be reduced, the assembling process can be simplified and costs can be reduced.In particular, since all components are made of synthetic resin, there is no need to separate and collect each material when disposing of the ejector. Become.
- the first elastic member may be arranged between a piston guide and a bottom wall portion of a space region.
- the pressure accumulating type liquid ejector further includes a press cap having a nozzle adapted to be fitted to the protruding end of the hollow stem and ejecting the liquid flowing through the internal space of the hollow stem to the outside world, and further comprising a press cap and a base.
- the second elastic member may be arranged between the members.
- the stopper may be formed integrally with the base member, and may be a ring member that comes into contact with the rear end of the piston before the content is ejected.
- the pressure accumulating type liquid ejector further includes a stopper in the cylinder, the stopper being in contact with the end of the piston when the piston is pushed and restricting the displacement thereof, and the piston contacting the stopper.
- An annular recess along the outer peripheral edge of the end It is desirable to form a part.
- the amount of displacement of the piston in the cylinder is restricted by the end of the piston contacting the stopper.
- the piston comes into contact with the stopper without being in contact with the vicinity of the base of the stopper, due to the annular concave portion formed along the outer peripheral edge. Therefore, even if the vicinity of the base of the stove is easily damaged or deformed at the end of the piston, the end of the piston comes into contact with the base without coming into contact with the vicinity of the base of the stove. Sealing properties are obtained, and the contents can be ejected without liquid leakage inside the cylinder.
- the opening of the cylinder disposed at a position facing the suction port while covering a part of the hollow stem is also covered.
- the cylinder further includes a stopper that contacts the end of the piston during the pushing operation of the piston and regulates an amount of displacement of the piston.
- the end of the contacting piston is provided with an annular recess formed along the outer peripheral edge of the end.
- the main mechanism of the accumulator type liquid ejector is modularized, so that it can be attached to various types of containers. That is, in addition to the effect obtained by the above-described accumulator type liquid ejector, an effect that it is possible to immediately respond to a variety of changes in product specifications is obtained.
- FIG. 1 is a cross-sectional view showing a first embodiment of a pressure accumulating liquid ejector according to the present invention.
- FIG. 2 is a partial cross-sectional view showing a module corresponding to the ejector of FIG.
- FIGS. 3 (a) and 3 (b) are a partial cross-sectional view showing the piston of FIGS. 1 and 2 from the side and an enlarged cross-sectional view of its end.
- FIG. 4 is a partial cross-sectional view showing a conventional piston from the side.
- FIGS. 5 (a) and 5 (b) are enlarged cross-sectional views each showing a state in which the end of the piston shown in FIGS. 1 to 3 is in contact with a step surface provided in the cylinder, and the prior art shown in FIG. FIG. 4 is an enlarged cross-sectional view showing a state in which an end of the piston contacts a step surface provided in the cylinder.
- FIG. 6 is a sectional view showing a second embodiment of the pressure accumulating liquid ejector according to the present invention using the module of FIG.
- FIG. 7 is a sectional view showing a third embodiment of the accumulator type liquid ejector according to the present invention.
- FIG. 8 is a sectional view showing a configuration of a pressure accumulating liquid ejector according to a fourth embodiment of the present invention.
- FIG. 9 is a sectional view showing the ejector shown in FIG. 8 in a pushed state.
- FIG. 10 is an explanatory diagram of the injection procedure of the ejector shown in FIG.
- FIG. 11 is a cross-sectional view showing the configuration of a fifth embodiment of the pressure accumulating liquid ejector according to the present invention.
- FIG. 12 is a cross-sectional view showing a configuration of a pressure accumulating liquid ejector according to a sixth embodiment of the present invention.
- FIG. 13 is a cross-sectional view showing the configuration of a pressure accumulating liquid ejector according to a seventh embodiment of the present invention.
- FIG. 14 is a partial cross-sectional view showing a module corresponding to the ejector of FIG.
- FIG. 15 is a cross-sectional view showing a module corresponding to the ejector of FIG.
- FIG. 16 is a partial cross-sectional view showing a module corresponding to the ejector of FIG.
- FIG. 17 is a cross-sectional view showing a module corresponding to the ejector of FIG.
- FIG. 1 is a cross-sectional view showing a first embodiment of a pressure accumulating liquid ejector according to the present invention
- FIG. 2 shows a module used for the pressure accumulating liquid ejector 1 of FIG. It is sectional drawing.
- reference numeral 10 denotes a container for filling contents
- reference numeral 11 denotes an opening of the container 10
- reference numeral 100 denotes a module shown in FIG.
- the module 100 includes a cylinder 110, a piston 120, a piston guide 130, a check valve 140, a hollow stem 150, and a first elastic member. It consists of nine parts: a spring 160, a spring 170 that is the second elastic member, a cover member 180, and a packing P.
- the cylinder 1 10 has a seat 1 1 1 f where the pole 1 4 1 is seated near the suction port 1 1 1 1 and a plurality of ribs 1 1 2 that regulate the movement of the pole 1 4 1,
- One end 13 1 of the piston guide 13 is held by a spring 16 arranged on the upper surface 11 f of the rib 11.
- the other end 13 2 of the piston guide 13 is attached integrally to a plurality of ribs 15 2 formed in the internal passage 15 1 of the hollow stem 150, and the interval between the ribs 15 2 is
- An annular internal passage 15 3 communicating with the internal passage 15 1 is formed between the piston guide 13 and the piston 10.
- the piston 120 forms a space region (pump chamber R) between the piston 120 and the cylinder 110, and the internal passage 150 formed in the hollow stem 150 through the base 121 thereof. Partially held movably at 151 f. Further, the piston 120 has an internal passageway 122 through which the piston guide 130 penetrates, and a part 122 of the inner wall of the internal passageway 122 is formed with a flange portion 150 of the hollow stem 150.
- the spring 170 is disposed between the piston guide 130 and the outer peripheral portion 133 of the piston guide 130 in a detachable manner. As a result, the piston 120 is pushed by the pushing force F1 from the hollow stem 150, and the piston 120 is pushed by the pushing force F1. Since the return operation is induced by the force F2, the cylinder can slide along the inner wall surface 110f of the cylinder 110 via the front end portion 123 and the rear end portion 124 thereof.
- the piston 120 and the piston guide 130 are opened by the pushing operation of the piston 120 caused in cooperation with the pushing operation of the hollow stem 150, and the liquid in the pump chamber R is opened.
- the valve is a discharge valve that discharges air to the outside.
- the seat 1 1 1 f, the ribs 1 1 2 and the poles 1 4 1 are pushed back by the piston 12 0 caused by the elastic force of the spring 16 0.
- a suction valve 140 that is opened and sucks liquid into the pump chamber R.
- the packing P is fitted in a groove portion 115 provided on the outer periphery of the cylinder 110 with an under force.
- the cover member 180 has a through hole 182 through which the hollow stem 150 passes through the upper part 181, and an opening 1 14 of the cylinder 110 is provided inside the cover member 180. It has an inner wall 1 83 to be fitted together with 180 f. For this reason, the cover member 180 passes through the flange portion 150 of the hollow stem 150 in a state where the opening portion 114 of the cylinder 110 is sealed at the position where it comes into contact with the packing P.
- 18 2 Inner wall 18 2: By contacting it, the movement of hollow stem 150 which receives elastic force of spring 170 is regulated, and a part of hollow stem 150 is exposed. The hollow stem 150 is held so as to cover the opening 111 of the cylinder 110 so that the hollow stem 150 can be pushed and returned.
- the pressure accumulating type liquid ejector 1 shown in FIG. 1 uses such a module 100 to press a hollow stem 150 exposed from a cover member 180 with a nozzle (chip) Es built therein. It is a spray type with a cap 13 attached, and is attached to the mouth 11 of the container 10 via a base member 190 made of a metal screw cap. Note that a decorative cap cover 13 c is attached to the pressing cap 13.
- a flange portion 184 is formed on the outer peripheral portion of the cover member 180 in a body. For this reason, as shown in FIG. 1, the metal screw cap 190 is placed on the upper part 18 1 and the flange part 18 4 of the cover member 180, and then the cover is removed.
- the pressure accumulating liquid ejector 1 can be screw-fitted to the mouth 11 of the container 10 by simply screwing it. In this case, an adhesive or a connecting element for connecting to the cover member 180 is not required, which contributes to cost reduction.
- the hollow stem 150 is first pushed in the direction of the arrow F 1, and cooperates with the pushing operation of the hollow stem 150.
- the piston 120 is pushed in the cylinder 110 against the elastic force of the spring 160 to pressurize the pump chamber R.
- the pushing operation of the piston 120 is performed by the step surface 113 provided in the cylinder 110.
- the contact is regulated by the front end 123 of 120.
- FIGS. 3 (a) and 3 (b) are a partial sectional view showing the piston 120 from the side and an enlarged sectional view of the front end 123 thereof.
- FIG. 4 is a view showing the conventional piston 20 from the side. It is a fragmentary sectional view.
- Figures 5 (a) and 5 (b) show piston 1
- the piston 120 has a lower front end 1 as shown in Figs.
- the end 123 of the piston 120 is provided with a sliding surface 123f1 sliding on the cylinder inner wall surface 110f and a step 113. And the contact surface 123 ⁇ 2 that comes into contact with.
- the module 100 and the accumulator-type liquid ejector 1 using the module 100 are configured to push the piston 120 arranged in the cylinder 110 from the hollow stem 150.
- the push-in operation of the piston 120 in the cylinder 110 is performed by setting the front end 123 of the piston 120 to the cylinder 110 It is regulated by contacting the step surface 113 provided inside.
- the front end 123 of the piston 120 is formed by an annular recess 123a provided along the outer peripheral edge thereof so as to form the base of the step surface 113 provided in the cylinder 110. It contacts the step surface 113 without contacting the vicinity 113a.
- the end 23 forms a substantially flat contact surface 23f, and as shown in Fig. 5 (b), comes into contact with the vicinity 113a near the base of the step surface 113.
- the end 23 of the piston 20 may be deformed or damaged, thereby deteriorating the sealing performance.
- the module 100 and the accumulator-type liquid ejector 1 using the module 100 are arranged such that the base 113a of the step surface 113 provided in the cylinder 110 is Even if the front end 1 2 3 has a shape that can easily cause damage or deformation, the front end 1 2 3 of the piston 1 2 0 is provided in the cylinder 1 10 without contacting near the root 1 1 3 a.
- the contact with the step surfaces 1 1 and 3 provides a reliable sealing effect and allows the contents to be ejected without liquid leakage from the inside of the cylinder.
- the module 100 can be attached to various types of elements by modularizing the main mechanism of the accumulator-type liquid ejector 1. Therefore, according to the module 100, in addition to the effect obtained as the accumulator-type liquid ejector 1, an effect that it is possible to immediately respond to changes in a wide variety of product specifications is obtained.
- the shape of the annular concave portion 123 a is not limited to the stepped concave portion formed in the above-mentioned annular shape, but may be the same as the sliding surface 123 f 1 forming the lower end of the piston 120. It is also possible to form a concave portion having a shape connecting the contact surface 1 2 3 f 2 with a straight line or a curve.
- FIG. 6 is a sectional view showing a second embodiment of a pressure accumulating liquid ejector according to the present invention using a module 100. 1 to 5 are denoted by the same reference numerals, and description thereof will be omitted.
- the accumulator type liquid ejector 2 shown in FIG. 6 is of the same spray type as that of FIG. 1, and is attached to the mouth 11 of the container 10 via the base member 191,
- the head cover 13 c is detachably attached to the base member 19 1.
- the pressure accumulating type liquid ejector 2 also has a flange portion 1884 formed on the outer periphery of the cover member 180, the base member 1911 and the cover member 180 are formed. It can be attached to the mouth 11 of the container 10 simply by fitting it undercut to the flange portion 184 of the container. Also in this case, an adhesive and a connecting element for connecting to the cover member 180 are not required, which helps to reduce costs.
- the pressure accumulating liquid ejector according to the first aspect of the present invention may be directly assembled to the mouth 11 of the container 10 without using the module 100 as shown in FIG.
- FIG. 7 is a cross-sectional view showing a pressure accumulating liquid ejector according to a third embodiment of the present invention. The same parts as those in FIGS. Abbreviate.
- the accumulator type liquid ejector 3 shown in FIG. 7 is of a type in which a cylinder 110 is mounted on a mouth 11 of the container 10 via a base member 192. Also in this case, the cylinder 1 1 0 0 is provided with an annular recess 1 2 3 a formed along the outer peripheral edge of the front end 1 2 3 at the front end 1 2 3 a of the piston 1 2 0.
- the load applied to the pressing cap 13 or the hollow stem 150 when ejecting the contents is reduced. It is effective to lower the force of one of the two springs 160 and 170 in order to achieve a smooth spout by the bombing operation.
- the piston 120 and the piston Since the contact pressure with the guide 130 is reduced, liquid leakage may occur in the cylinder 110, and it may be difficult to efficiently eject the contents.
- FIG. 8 is a cross-sectional view showing a configuration of a pressure accumulating liquid ejector according to a fourth embodiment of the present invention.
- Reference numeral 11 denotes a mouth of the container 10.
- Reference numeral 210 denotes a cylinder mounted on the mouth 11 of the container 10 via a base member 290.
- a suction port 2a for sucking the contents through the suction pipe 14 is formed in the bottom wall portion of the cylinder 210.
- the base member 290 has an opening communicating with the inside of the container 10 and is shown as an example in which the base member 290 is screwed to the opening 11.
- Reference numeral 220 denotes a piston disposed in the cylinder 210.
- the piston 210 has an internal passage 220a penetrating in a direction along the axis.
- Reference numeral 230 denotes a piston guide.
- the piston guide 230 is disposed through the internal passage 220 a of the piston 220 and guides the opening and closing operation of the internal passage 220 a.
- a space region (pump chamber) R for sucking and pressurizing liquid is formed.
- Reference numeral 240 denotes a check valve that opens the suction port 210 a of the cylinder 210 only when sucking the contents
- 250 denotes a hollow stem.
- the hollow stem 250 is slidably fitted to the outside of the piston 220 while maintaining a liquid-tight state, and is engaged with the end portion 232 of the piston guide 230.
- Reference numeral 13 denotes a pressing cap adapted to the protruding end of the hollow stem 250.
- the pressing cap 13 is a fluid such as air or liquid flowing out through the internal space 250a of the hollow stem 250. With a nozzle E s that blows out to the outside world.
- Reference numeral 260 denotes a first elastic member.
- the first elastic member 260 is disposed in the pump chamber R of the cylinder 220 and presses the piston guide 230 against the piston 220 to close the passage 220 a of the piston 220. Has the function of maintaining the state.
- Reference numeral 270 denotes a second elastic member, and this elastic member 270 is shown as an example that is disposed between the piston 220 and the hollow stem 250. It has the function of pressing the piston 220 against the piston guide 230 and adjusting the ejection pressure (internal pressure) of the contents.
- reference numeral S denotes a stopper which is shown as an example in which the base member 290 is integrally formed as an inner ring. This stopper S contacts the rear end 2 24 of the piston 220 in the cylinder 210 and Ton positioning is performed. Note that when the piston 220 is pushed in, the step surface 2 13 provided in the cylinder 210 functions as a stopper, and the front end 2 2 3 of the piston 220 contacts the step surface 2 13. Is regulated by
- the passage 220 of the piston 220 presses the piston 220 and the piston guide 230 in opposite directions by the first elastic member 260 and the second elastic member 270.
- the elastic force of the second flexible member 270 is reduced to guide the smooth ejection of the contents, so that the pressing force of the piston 220 against the piston guide 230 is reduced.
- the sealing performance of the passage 220a in the closed state is impaired, which leads to internal leakage.
- the stopper S is in contact with the rear end portion 224 of the piston 220 to determine the position thereof, and even if the elasticity of the second elastic member 270 is changed. Since the pressing force of the first conductive member 260 against the piston 220 is always constant, the contents can be smoothly ejected without impairing the sealing performance in the closed state of the passage 220a. Become.
- the stopper S is shown as an example integrally molded with the base member 290, it can be formed of a separate member. If there is no particular problem in molding, the same as the step surface 2 13 However, it can be formed integrally with the cylinder 210.
- a spiral spring can be applied to both the first elastic member 260 and the second elastic member 270, but the shape is not particularly limited as long as a desired elasticity can be secured.
- the material a resin material can be used, but a metal material may be used as long as there is no risk of affecting the quality of the contents.
- each member can be formed of a synthetic resin.
- the first elastic member and the second elastic member are formed by a piston guide 23 as shown in Fig. 11. 0, there is an advantage that the number of parts can be reduced when the single members 360 and 370 are formed integrally with the hollow stem 250 respectively.
- FIG. 12 is a cross-sectional view showing a pressure accumulating liquid ejector according to a sixth embodiment of the present invention.
- This accumulator type liquid ejector 6 is a modified example of FIGS. 8 to 10, and is formed at the front end portion 23 and the rear end portion 24 of the piston 220 along the outer peripheral edge. It has annular recesses 2 2 3 a and 2 4 a.
- the amount of displacement of the piston 220 in the cylinder 210 is determined by the step surface 213 provided by the front end 223 of the piston 220 in the cylinder 210.
- the contact is restricted and the rear end portion 224 of the piston 220 contacts the stopper S formed integrally with the base member 290.
- the front end 2 2 3 and the rear end 2 2 4 of the piston 2 20 are not contacted with the step surface 2 13 or the vicinity of the base of the stopper S, respectively. Contact with stopper S. For this reason, even if the step surface 2 13 or the vicinity of the base of the stopper S has a shape that easily causes damage or deformation to the front end portion 22 3 or the rear end portion 24 of the piston 220, the piston 22 0 The front end 2 2 3 or the rear end 2 2 4 contacts the step surface 2 13 or the stopper S without contacting the step surface 2 13 or near the base of the stopper S. No liquid leakage inside the cylinder The contents can be spouted out.
- FIG. 13 is a cross-sectional view showing a configuration of a pressure accumulating liquid ejector according to a seventh embodiment of the present invention.
- This accumulator type liquid ejector 7 is an example in which the sixth embodiment of FIG. 12 is adopted in the fifth embodiment of FIG. 11, and the piston 22 has a front end 22 and a rear end 22.
- 4 includes annular recesses 2 23 a, 2 24 a formed along the outer peripheral edge thereof, except that the configurations of the first and second elastic members are different. This is the same configuration as.
- each of the pressure accumulating type liquid ejectors 4 to 7 is configured as a module 200 to 500 shown in Figs. 14 to 17 by integrating each member as a module. be able to.
- the packing P is undercut-fitted by a groove 2 15 provided on the outer periphery of the cylinder 210.
- the cover member 280 has a through hole 282 through which a hollow stem 250 penetrates in an upper part 281 thereof, and has an opening 218 of a cylinder 210 on an inner surface thereof.
- An inner wall 283 fitted with 280f is provided.
- the cover member 280 is located at a position where it comes into contact with the packing P, with the opening portion 214 of the cylinder 210 sealed, and the flange portion 250 of the hollow stem 250 is sealed.
- Contacting the inner wall 282 f of the through-hole 282 restricts the movement of the hollow stem 250 receiving the elastic force of the elastic member 270 (370), and With the portion exposed, the hollow stem 250 is held so as to cover the opening 214 of the cylinder 210 and allow the hollow stem 250 to be pushed and returned.
- the flange portion 1884 is formed on the outer peripheral portion of the cover member 180 so that the base as shown in Figs. It can be attached to the mouth 11 of the container 10 using members 190, 191 and the like.
- the modules shown in Figs. 14 to 17 also have a stepped surface 213 in the cylinder 210 and a cover ⁇
- a stopper S integrally formed is provided.
- the annular recesses 22 3 a and 22 4 a formed in the piston 220 are pressurized liquid ejectors 6 and 7 and their As shown in Joules 400 and 500, it is preferable to form them at the front end 2 23 and the rear end 2 2 4 of the piston 220, respectively, but the front end 2 2 3 or the rear of the piston 220 is preferable. It may be provided on only one of the end portions 224.
- the pressure-accumulating liquid ejector may be of a type that discharges a highly viscous fluid such as an emulsion as it is, instead of a spray type using a nozzle tip.
- the pressure accumulating type liquid ejector may be of a type in which the user presses a saucer-shaped nozzle head provided on the biston via a cotton puff or the like to take out contents such as cleansing liquid.
- Each member constituting the ejector can be produced by applying an injection molding method, but the molding method is not particularly limited in the present invention.
- polyethylene polypropylene, nylon and ABS
- PET polyethylene terephthalate
- PBT polybutylene terephthalate
- POM polyoxymethylene
Landscapes
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Closures For Containers (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
- Nozzles (AREA)
- Details Of Reciprocating Pumps (AREA)
- Reciprocating Pumps (AREA)
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE60234477T DE60234477D1 (de) | 2002-05-23 | 2002-09-18 | Druckspeicher-flüssigkeitssprühvorrichtung |
CA002486382A CA2486382C (en) | 2002-05-23 | 2002-09-18 | Accumulator-type liquid sprayer |
AU2002332183A AU2002332183B2 (en) | 2002-05-23 | 2002-09-18 | Pressure accumulator-type liquid spraying device |
US10/513,992 US7410079B2 (en) | 2002-05-23 | 2002-09-18 | Accumulator-type liquid sprayer |
EP02767973A EP1506818B2 (en) | 2002-05-23 | 2002-09-18 | Pressure accumulator-type liquid spraying device |
KR1020047018957A KR100692457B1 (ko) | 2002-05-23 | 2002-09-18 | 축압식 액체 분출기 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2002149460A JP3942020B2 (ja) | 2002-05-23 | 2002-05-23 | 蓄圧式ポンプおよびそのモジュール |
JP2002-149460 | 2002-05-23 |
Publications (1)
Publication Number | Publication Date |
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WO2003099453A1 true WO2003099453A1 (fr) | 2003-12-04 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2002/009584 WO2003099453A1 (fr) | 2002-05-23 | 2002-09-18 | Dispositif de vaporisation de liquide de type accumulateur de pression |
Country Status (9)
Country | Link |
---|---|
US (1) | US7410079B2 (ja) |
EP (1) | EP1506818B2 (ja) |
JP (1) | JP3942020B2 (ja) |
KR (1) | KR100692457B1 (ja) |
CN (2) | CN1293949C (ja) |
AU (1) | AU2002332183B2 (ja) |
CA (1) | CA2486382C (ja) |
DE (1) | DE60234477D1 (ja) |
WO (1) | WO2003099453A1 (ja) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080290119A1 (en) * | 2007-05-22 | 2008-11-27 | Living Fountain Plastic Industrial Co., Ltd. | Piston mechanism of a lotion pump |
JP5331324B2 (ja) * | 2007-09-27 | 2013-10-30 | 株式会社吉野工業所 | 吐出ポンプ |
IT1393854B1 (it) * | 2009-04-01 | 2012-05-11 | Emsar Spa | Dispenser. |
US8322630B2 (en) | 2010-05-10 | 2012-12-04 | The Procter & Gamble Company | Trigger pump sprayer |
US8322631B2 (en) | 2010-05-10 | 2012-12-04 | The Procter & Gamble Company | Trigger pump sprayer having favorable particle size distribution with specified liquids |
WO2012054670A1 (en) * | 2010-10-20 | 2012-04-26 | Meadwestvaco Calmar, Inc. | Precompression pump mechanisms |
CN102991839B (zh) * | 2011-09-08 | 2016-04-20 | 丁要武 | 使用弹性体活塞的液体泵、活塞组件及其生产方法 |
JP2014240286A (ja) * | 2013-06-11 | 2014-12-25 | 株式会社三谷バルブ | 内容物放出用ポンプ機構およびこの内容物放出用ポンプ機構を備えたポンプ式製品 |
CN103332402B (zh) * | 2013-06-14 | 2014-12-10 | 苏州汇涵医用科技发展有限公司 | 医用护创液的喷液瓶结构 |
JP6330281B2 (ja) * | 2013-09-25 | 2018-05-30 | ヨンウー カンパニー,リミテッド | 内容物の再吸入が可能なディスペンサー |
US9205440B2 (en) * | 2013-10-22 | 2015-12-08 | Yonwoo Co., Ltd. | Dispenser for sucking back contents |
WO2015080252A1 (ja) * | 2013-11-29 | 2015-06-04 | 株式会社ダイゾー | 内容物収容容器、それを用いた内容物収容製品、吐出製品および吐出装置 |
AU2015335023A1 (en) | 2014-10-20 | 2017-05-04 | Rieke Packaging Systems Limited | Pump dispensers |
FR3028571B1 (fr) * | 2014-11-14 | 2019-09-13 | Aptar France Sas | Pompe manuelle |
CN104888993B (zh) * | 2015-04-03 | 2017-12-29 | 余姚市特力喷雾器有限公司 | 微型喷雾泵 |
FR3048236B1 (fr) * | 2016-02-29 | 2019-07-12 | Albea Le Treport | Systeme de distribution de produit pour flacon |
JP6930873B2 (ja) * | 2017-07-31 | 2021-09-01 | 株式会社吉野工業所 | 吐出ポンプ |
KR102077606B1 (ko) * | 2018-03-15 | 2020-02-17 | (주)연우 | 오리피스 및 이를 포함하는 스프레이 용기 |
FR3090417B1 (fr) * | 2018-12-19 | 2020-12-18 | Aptar France Sas | Dispositif de distribution de produit fluide |
WO2022243475A1 (de) | 2021-05-20 | 2022-11-24 | Aptar Dortmund Gmbh | Feder aus kunststoff und abgabevorrichtung |
DE102021122705A1 (de) | 2021-05-20 | 2022-11-24 | Aptar Dortmund Gmbh | Feder aus Kunststoff und Abgabevorrichtung |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0958732A (ja) * | 1995-08-22 | 1997-03-04 | Yoshino Kogyosho Co Ltd | 容器用ポンプ装置 |
US5638996A (en) | 1995-04-13 | 1997-06-17 | Monturas S.A. | Precompression pump sprayer |
WO1999065798A1 (en) | 1998-06-16 | 1999-12-23 | Risdon/Ams (Usa), Inc. | Low profile and low force actuation pump |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1092596B (it) | 1978-02-09 | 1985-07-12 | Ruscitti Tommaso | Pompetta a mano per dispensare liquidi micronizzati a pressione prestabilita |
IT8421596V0 (it) * | 1984-04-19 | 1984-04-19 | Sar Spa | Pompetta a mano per dispensare sotto pressione liquidi micronizzati. |
US5348189A (en) † | 1991-04-10 | 1994-09-20 | Bespak Plc | Air purge pump dispenser |
FR2686377B1 (fr) † | 1992-01-20 | 1994-03-25 | Valois | Pompe a precompression perfectionnee. |
FR2694607B1 (fr) * | 1992-08-10 | 1994-10-07 | Step Soc Tech Pulverisation | Perfectionnement à l'assemblage d'une pompe dans un réservoir. |
FR2719242B1 (fr) * | 1994-04-27 | 1996-07-12 | Valois Sa | Pompe à précompression perfectionnée. |
EP0691161B1 (en) | 1994-07-07 | 1999-09-29 | SAR S.p.A. | A device for dispensing pastes or liquids from bottles or the like |
US6209759B1 (en) * | 1997-07-04 | 2001-04-03 | Valois S.A. | Hand-operated pump with a free floating sleeve piston |
DE10015968A1 (de) † | 2000-03-30 | 2001-10-04 | Pfeiffer Erich Gmbh & Co Kg | Spender für Medien |
-
2002
- 2002-05-23 JP JP2002149460A patent/JP3942020B2/ja not_active Expired - Fee Related
- 2002-09-18 CN CNB028290070A patent/CN1293949C/zh not_active Expired - Lifetime
- 2002-09-18 EP EP02767973A patent/EP1506818B2/en not_active Expired - Lifetime
- 2002-09-18 CA CA002486382A patent/CA2486382C/en not_active Expired - Lifetime
- 2002-09-18 KR KR1020047018957A patent/KR100692457B1/ko active IP Right Grant
- 2002-09-18 CN CNB2006100781923A patent/CN100528705C/zh not_active Expired - Lifetime
- 2002-09-18 AU AU2002332183A patent/AU2002332183B2/en not_active Ceased
- 2002-09-18 DE DE60234477T patent/DE60234477D1/de not_active Expired - Lifetime
- 2002-09-18 WO PCT/JP2002/009584 patent/WO2003099453A1/ja active Application Filing
- 2002-09-18 US US10/513,992 patent/US7410079B2/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5638996A (en) | 1995-04-13 | 1997-06-17 | Monturas S.A. | Precompression pump sprayer |
JPH0958732A (ja) * | 1995-08-22 | 1997-03-04 | Yoshino Kogyosho Co Ltd | 容器用ポンプ装置 |
WO1999065798A1 (en) | 1998-06-16 | 1999-12-23 | Risdon/Ams (Usa), Inc. | Low profile and low force actuation pump |
Non-Patent Citations (1)
Title |
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See also references of EP1506818A4 |
Also Published As
Publication number | Publication date |
---|---|
CA2486382C (en) | 2008-11-18 |
EP1506818B2 (en) | 2013-01-23 |
CN1293949C (zh) | 2007-01-10 |
AU2002332183C1 (en) | 2003-12-12 |
DE60234477D1 (de) | 2009-12-31 |
CN1872636A (zh) | 2006-12-06 |
CN100528705C (zh) | 2009-08-19 |
CA2486382A1 (en) | 2003-12-04 |
AU2002332183B2 (en) | 2007-02-01 |
US7410079B2 (en) | 2008-08-12 |
EP1506818A4 (en) | 2007-08-01 |
JP3942020B2 (ja) | 2007-07-11 |
JP2003340326A (ja) | 2003-12-02 |
CN1627996A (zh) | 2005-06-15 |
EP1506818A1 (en) | 2005-02-16 |
AU2002332183A1 (en) | 2003-12-12 |
US20050279774A1 (en) | 2005-12-22 |
EP1506818B1 (en) | 2009-11-18 |
KR20050004860A (ko) | 2005-01-12 |
KR100692457B1 (ko) | 2007-03-09 |
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