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WO2025205426A1 - Mécanisme d'évacuation de quantité fixe et produit pourvu dudit mécanisme d'évacuation de quantité fixe - Google Patents

Mécanisme d'évacuation de quantité fixe et produit pourvu dudit mécanisme d'évacuation de quantité fixe

Info

Publication number
WO2025205426A1
WO2025205426A1 PCT/JP2025/011022 JP2025011022W WO2025205426A1 WO 2025205426 A1 WO2025205426 A1 WO 2025205426A1 JP 2025011022 W JP2025011022 W JP 2025011022W WO 2025205426 A1 WO2025205426 A1 WO 2025205426A1
Authority
WO
WIPO (PCT)
Prior art keywords
downstream
upstream
metering
piston
valve
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.)
Pending
Application number
PCT/JP2025/011022
Other languages
English (en)
Japanese (ja)
Inventor
博史 菅野
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.)
Mitani Valve Co Ltd
Original Assignee
Mitani Valve Co Ltd
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
Application filed by Mitani Valve Co Ltd filed Critical Mitani Valve Co Ltd
Publication of WO2025205426A1 publication Critical patent/WO2025205426A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/42—Closures with filling and discharging, or with discharging, devices with pads or like contents-applying means

Definitions

  • the present invention relates to a measuring and dispensing mechanism that is installed at the top of a container and can measure and dispense a fixed amount of liquid contents with each operation.
  • this relates to a measuring and dispensing mechanism in which the user switches the measuring and dispensing mechanism to measuring mode, then turns the entire mechanism, including the container, upside down to allow the contents to flow into the metering chamber, and then switches it to dispensing mode to make the contents of the metering chamber ready for dispensing.
  • the user removes the cap protecting the discharge part from the container, pulls out the discharge part, and switches to metering mode. Then, by turning the container upside down with the bottom facing up and pressing the discharge part against the surface to be treated, the device enters discharge mode, and a predetermined amount of liquid medicine is dispensed from the discharge port of the discharge part (see Patent Document 2).
  • the valve in the metering chamber that measures the contents is activated by removing the cap and pressing the discharge part against the surface to be coated, so users can use the product without having to worry about any special operations to measure the contents.
  • the discharge part drives the piston valve in the metering chamber
  • the discharge part that drives the piston valve needs to be thinner than the cross-section of the housing or cylinder in which it is housed. Enlarging the contact area that presses against the surface to be coated poses a cost problem, as a separate component must be attached to the discharge part.
  • the discharge valve which is installed at the tip of the discharge part independently of the valve in the metering chamber, remains closed unless the user presses it against the surface to be coated. Therefore, upstream movement causes the volume of the space between the discharge valve and the valve upstream of it to fluctuate, creating the problem of the contents leaking from gaps in various parts and easily contaminating the surrounding area.
  • the present invention aims to prevent leakage of contents from the downstream valve to the discharge port by configuring the downstream valve of the metering chamber with a movable cylindrical inner surface on the discharge portion side and a piston contained within this and fixed to the container body side, and by switching between opening and closing states by moving them apart or in close contact.
  • the movable discharge part is the cylindrical inner surface, i.e., the cylinder side, there are no restrictions on the outer peripheral shape, which aims to increase design freedom and reduce manufacturing costs.
  • the discharge valve is opened when switching to metering mode, thereby reducing the pressure difference between the space between the discharge valve and downstream valve and the external space, thereby preventing backflow of the contents and reducing contamination of the contents.
  • the present invention solves the above problems as follows:
  • a container body for example, the container body 11 described later in which liquid contents are accommodated, a fixed stopper (for example, the shoulder cover 12 described later) provided at the opening of the container body, a metering chamber (for example, the metering chamber A described later) having a discharge port (for example, the discharge port 13b described later) for the contents and provided in a liquid-tight and linearly movable manner on the fixed stopper, for measuring the contents between the fixed stopper and the fixed stopper, an upstream valve (for example, the cylindrical outer peripheral surface 12f, the upstream skirt 12b described later) for controlling communication between the inside of the container body and the metering chamber, a downstream valve (e.g., a downstream skirt portion 12h, a downstream cylindrical inner peripheral surface 13f, and a groove portion 13g, which will be described later) that controls communication between the metering chamber and a passage to the discharge port, and a movable stopper (e.g., a movable stopper 13, which will be described later) that
  • the upstream piston is The nozzle comprises a bowl-shaped portion (for example, bowl-shaped portion 12e described later) that bulges out toward the downstream side and a cylindrical outer peripheral surface (for example, cylindrical outer peripheral surface 12f described later) that extends from the periphery of the bowl-shaped portion toward the upstream side.
  • a bowl-shaped portion for example, bowl-shaped portion 12e described later
  • a cylindrical outer peripheral surface for example, cylindrical outer peripheral surface 12f described later
  • the upstream cylindrical inner peripheral surface is an annular seal portion (e.g., an upstream skirt portion 13e described later) that can come into contact with the cylindrical outer peripheral surface in the discharge mode is provided at the upstream end portion;
  • the downstream cylindrical inner peripheral surface is A groove portion (for example, a groove portion 13g described later) is provided to separate a part of the downstream piston from the downstream piston in the discharge mode to allow the contents to pass through.
  • a configuration of the above is used.
  • the cross-sectional area of the upstream piston is the same as the cross-sectional area of the downstream piston. A configuration of the above is used.
  • a cap for covering the movable stopper, the cap having a pull-up engaging portion (e.g., pull-up engaging portion 14b described later) that detachably engages with the movable stopper;
  • the lifting engagement portion engages with the movable stopper,
  • the lifting engagement portion shifts the movable stopper to the measuring mode and then disengages from the movable stopper.
  • a configuration of the above is used.
  • the cap and the container body or the fixed plug each have a threaded portion (for example, an outward threaded portion 11b and an inward threaded portion 14a described below) that are coupled to each other, When the coupling of the screw portion is released, the pull-up engagement portion shifts the movable stopper to the measurement mode and then disengages from the movable stopper.
  • a configuration of the above is used.
  • the lifting engagement portion is engages with the inner surface of the discharge port; A configuration of the above is used.
  • the upstream piston and the downstream piston are integrally molded. A configuration of the above is used.
  • a discharge valve including a discharge valve seat (e.g., a discharge valve seat 13m described later) continuing to the discharge port at a downstream end of the downstream cylindrical inner peripheral surface and a discharge valve body (e.g., a discharge valve body 12m described later) connected to the downstream piston via an elastic portion (e.g., an elastic portion 12n described later);
  • a discharge valve seat e.g., a discharge valve seat 13m described later
  • a discharge valve body e.g., a discharge valve body 12m described later
  • an elastic portion e.g., an elastic portion 12n described later
  • the movable plug is a cylindrical portion (for example, an outer cylindrical portion 13j described later) on the outer peripheral side of the upstream cylindrical inner peripheral surface, with an annular space interposed therebetween;
  • the fixed plug is
  • the upstream piston has an outward skirt portion (for example, an outer skirt portion 12k described later) that slides liquid-tightly against the inner circumferential surface of the cylindrical portion on the outer side of the upstream piston.
  • a configuration of the above is used.
  • the subject of this invention is a metered dose release mechanism configured in this way and products that use it.
  • FIG. 10 is an explanatory diagram showing a non-use mode of the metered dispensing mechanism of the present invention.
  • FIG. 1. is an explanatory diagram showing a state in which the metering and dispensing mechanism of FIG. 1 has shifted to a metering mode during the process of removing a cap.
  • 3 is an explanatory diagram showing the metering and dispensing mechanism of FIG. 2 in an inverted state with the cap removed and the mechanism turned upside down.
  • FIG. 4 is an explanatory diagram showing a state in which the periphery of the discharge port of the metering and dispensing mechanism of FIG. 3 is pressed against the surface to be coated and the metering of the contents is completed.
  • FIG. 1 is an explanatory diagram showing a state in which the metering and dispensing mechanism of FIG. 1 has shifted to a metering mode during the process of removing a cap.
  • 3 is an explanatory diagram showing the metering and dispensing mechanism of FIG. 2 in an in
  • FIG. 5 is an explanatory diagram showing a dispensing mode in which the periphery of the dispensing opening of the metering and dispensing mechanism of FIG. 4 is further pressed against the surface to be coated, allowing the contents to flow out from the dispensing opening.
  • FIG. 1 is an explanatory diagram showing a non-use mode of a metering and dispensing mechanism equipped with a nozzle tip of the present invention.
  • FIG. 1 is an explanatory diagram showing a non-use mode of the metering and dispensing mechanism provided with the dispensing valve of the present invention.
  • FIG. 8 is an explanatory diagram showing a state in which the cap of the metering and dispensing mechanism of FIG. 7 has been removed and the mode has shifted to a metering mode.
  • 12a is an annular recessed portion that engages with the annular protruding portion 11a of the container body 11 and resists external forces that accompany removal of the cap 14, which will be described later;
  • 12b is a hanging cylindrical portion that is liquid-tightly engaged with the inner circumferential surface of the opening of the container body 11;
  • 12c is a communication port provided in the partition between the upstream side and the downstream side, which communicates between the inside of the container body 11 and the upstream valve;
  • 12d is an upstream piston provided in the center of the partition portion and bulging from the container body 11 side toward the downstream side;
  • 12e is a downstream portion of the upstream piston 12d, which is a bulging bowl-shaped portion;
  • 12f is a cylindrical outer peripheral surface continuing from the bowl-shaped portion 12e of the upstream piston 12d to the upstream side and constituting an upstream valve;
  • 12g is a center rod that stands upright downstream from the apex of the bowl-shaped portion 12e;
  • 12h is a
  • Figure 1 shows the non-use mode of the metered dispensing mechanism.
  • the cap 14 When the cap 14 is rotated from this state relative to the container body 11 as shown by the arrow in the figure, the cap 14 comes off upward from the container body 11 due to the action of the engaged outward threaded portion 11b and inward threaded portion 14a. At this time, the movable plug 13 also moves upward together with the cap 14 due to the action of the lifting engagement portion 14b which engages with the flange portion 13c.
  • the dimensions and volumes of the components of the metering and dispensing mechanism shown in FIG. 1 are as follows:
  • the diameter of the downstream cylindrical inner peripheral surface 13f is 10.6 mm.
  • the diameter of the cylindrical outer peripheral surface 12f is equal to the diameter of the downstream cylindrical inner peripheral surface 13f.
  • the movable distance between the shoulder cover 12 and the movable stopper 13 is 6 mm.
  • the distance from the farthest state between the shoulder cover 12 and the movable plug 13 in the metering mode until the upstream valve of the metering chamber A is closed is 3 mm.
  • the distance at which the shoulder cover 12 and the movable stopper 13 come into contact with each other in the vertical direction after the downstream valve of the metering chamber A is opened is 3 mm.
  • the maximum volume of the metering chamber A is approximately 1 milliliter.
  • Figure 2 shows the metering mode in which the user rotates the cap 14 of the metering and dispensing mechanism in Figure 1 relative to the container body 11, causing the cap 14 to move upward together with the movable stopper 13.
  • the engagement between the annular protrusion 11a and the annular recess 12a is designed to be less likely to come off than the engagement between the flange portion 13c and the lift-up engagement portion 14b.
  • the contents of the container body 11 flow into the metering chamber A as shown by the solid arrow through the communication port 12c and the space between the upstream valve, the cylindrical outer surface 12f, and the upstream skirt portion 13e, while the air in the metering chamber A flows out into the container body 11 in the opposite direction to the contents, as shown by the dashed arrow.
  • the underside of the upstream piston 12d forms a downwardly bulging bowl-shaped portion 12e, and the upper end of the uppermost upstream cylindrical inner surface 13d that defines the metering chamber A is open. As the air rises, it is pushed to the periphery by the bowl-shaped portion 12e and is naturally guided to the upper end, where it is expelled from the metering chamber A.
  • center rod 12g is located at the center of the most bulging underside of the bowl-shaped portion 12e, so it does not interfere with the air floating up.
  • Figure 4 is an explanatory diagram showing the state in which the contact portion 13a of the metering and dispensing mechanism in Figure 3 has been pressed against the application target surface B and the metering of the contents has been completed.
  • metering chamber A becomes a spatial area independent of the interior of container body 11 and discharge port 13b, ensuring reliable metering of the contents.
  • the volume of the metering chamber A does not change even if the upstream piston 12d or downstream skirt portion 12h moves while both the upstream valve and downstream valve are closed. Therefore, the movable distance of the movable plug 13 relative to the shoulder cover 12 can be set long when both the upstream valve and downstream valve are closed, thereby improving the durability of the valve against deterioration.
  • Figure 5 is an explanatory diagram showing the dispensing mode in which the contact portion 13a of the metered dispensing mechanism in Figure 4 is further pressed against the application target surface B, allowing the contents to flow out of the dispensing port.
  • the downstream valve is open, allowing the contents of metering chamber A to flow out of discharge port 13b through groove 13g as shown by the solid arrow in the figure.
  • the user can apply the contents of metering chamber A by shaking the metering mechanism up and down or by pressing contact part 13a against the surface to be coated B, thereby discharging and applying the contents of metering chamber A.
  • the downstream valve is housed inside the cylindrical portion provided with the downstream cylindrical inner surface 13f, so the contents do not come into direct contact with the outer periphery of this cylindrical portion and do not leak. Furthermore, because the outer periphery of this cylindrical portion does not function as a sealing surface, it can take any shape.
  • Figure 6 is an explanatory diagram showing the unused mode of the metering and dispensing mechanism equipped with the nozzle tip of the present invention.
  • a nozzle tip 13k is provided, and the nozzle tip 13k is provided with a contact portion 13a and a discharge port 13b.
  • the inner periphery of the discharge port 13b engages with the lifting engagement portion 14b, so by appropriately setting the diameter of the inserted lifting engagement portion 14b, the discharge port 13b can be stably closed without being pressed down by the cap 14.
  • Figure 7 is an explanatory diagram showing the non-use mode of the metering and dispensing mechanism equipped with the dispensing valve of the present invention.
  • a raised annular convex portion 13n is provided on the nozzle tip 13k, and an elastic portion 12n and a discharge valve body 12m are provided on the downstream skirt portion 12h, which, together with the discharge valve seat 13m of the nozzle tip 13k, form a discharge valve at the discharge port 13b.
  • the discharge valve body 12m abuts against the discharge valve seat 13m due to the biasing force of the elastic portion 12n, and the discharge valve is in a closed state.
  • Figure 8 is an explanatory diagram showing the state in which the cap of the metering and dispensing mechanism in Figure 7 has been removed and the device has switched to metering mode.
  • Figure 9 is an explanatory diagram showing the unused mode of the metering and dispensing mechanism of the present invention, in which the fixed stopper is integrally molded, in which the center rod 12g of Figure 1 is integrally molded with the upstream piston 12d.
  • the center rod 12g is integrally molded with the upstream piston 12d, reducing manufacturing costs.
  • the downstream valve opens and the movable stopper 13 moves, reducing the volume of the metered chamber A, so that a fixed amount is dispensed onto the application surface B without the user having to shake it.
  • the dimensions and volumes of the components of the metering and dispensing mechanism shown in FIG. 9 are as follows:
  • the diameter of the downstream cylindrical inner peripheral surface 13f is 5.2 mm.
  • the diameter of the cylindrical outer surface 12f is 10.7 mm.
  • the movable distance between the shoulder cover 12 and the movable stopper 13 is 6 mm.
  • the distance from the farthest state between the shoulder cover 12 and the movable plug 13 in the metering mode until the upstream valve of the metering chamber A is closed is 3 mm.
  • the distance at which the shoulder cover 12 and the movable stopper 13 come into contact with each other in the vertical direction after the downstream valve of the metering chamber A is opened is 3 mm.
  • the maximum volume of the metering chamber A is approximately 1 milliliter.
  • Figure 10 is an explanatory diagram showing the unused mode of the slim metering and dispensing mechanism of the present invention, in which outer skirt portion 12k and outer cylindrical portion 13j are provided instead of outer cylindrical portion 12j and outer skirt portion 13i of Figure 1.
  • the gap between the upstream skirt portion 13e and the outer skirt portion 12k can be narrowed, and the outer periphery of the movable plug 13 can also serve as the outer cylindrical portion 13j, making it possible to slim down the metered dispensing mechanism.
  • Figure 11 is an explanatory diagram showing the unused mode of the slim metering and dispensing mechanism of the present invention, which has an integrally molded fixed stopper.
  • the center rod 12g is integrally molded with the upstream piston 12d, and as in Figure 10, an outer skirt portion 12k and an outer cylindrical portion 13j are provided, providing the features of both a reduced number of parts and a slimmer metering and dispensing mechanism.
  • the outward threaded portion 11b is provided on the outer peripheral surface of the shoulder cover 12, not on the container body 11.
  • the width and number of the grooves 13g in the circumferential direction of the downstream-side cylindrical inner peripheral surface 13f are increased to form ribs on the downstream-side cylindrical inner peripheral surface 13f between the grooves 13g.
  • a flexible container such as a tube-shaped container or a pouch container is used instead of the bottle-shaped container body 11.
  • the container body 11 is always used in an inverted state with the top surface of the cap 14 as the bottom or the container body 11 is hung upside down relative to the shoulder cover 12. This may be done.
  • Products to which this invention can be applied include detergents, cleaning agents, antiperspirants, cooling agents, muscle anti-inflammatory agents, hair styling agents, hair treatment agents, hair dyes, hair growth agents, cosmetics, shaving foam, food, pharmaceuticals, quasi-drugs, paints, gardening agents, repellents (insecticides), cleaners, deodorizers, laundry starch, urethane foam, fire extinguishers, adhesives, and lubricants.
  • the contents contained in the container body 11 are in liquid form.
  • the ingredients contained in the contents include, for example, powders, oils, alcohols, surfactants, polymeric compounds, active ingredients for each application, and water.
  • Oil ingredients include silicone oil, palm oil, eucalyptus oil, camellia oil, olive oil, jojoba oil, paraffin oil, myristic acid, palmitic acid, stearic acid, linoleic acid, and linolenic acid.
  • Alcohols used include monohydric lower alcohols such as ethanol, monohydric higher alcohols such as lauryl alcohol, and polyhydric alcohols such as ethylene glycol, glycerin, and 1,3-butylene glycol.
  • Surfactants used include anionic surfactants such as sodium lauryl sulfate, nonionic surfactants such as polyoxyethylene oleyl ether, amphoteric surfactants such as lauryl dimethylaminoacetate betaine, and cationic surfactants such as alkyltrimethylammonium chloride.
  • polymeric compounds used include methylcellulose, gelatin, starch, casein, hydroxyethyl cellulose, xanthan gum, and carboxyvinyl polymer.
  • Active ingredients for each application include anti-inflammatory analgesics such as methyl salicylate and indomethacin, disinfectants such as sodium benzoate and cresol, insect repellents such as pyrethroids and diethyltoluamide, antiperspirants such as zinc paraphenolsulfonate, cooling agents such as camphor and menthol, anti-asthma medications such as ephedrine and adrenaline, sweeteners such as sucralose and aspartame, adhesives and paints such as epoxy resin and urethane, dyes such as paraphenylenediamine and aminophenol, oxidizers such as hydrogen peroxide, and fire extinguishers such as ammonium dihydrogen phosphate and sodium/potassium bicarbonate.
  • analgesics such as methyl salicylate and indomethacin
  • disinfectants such as sodium benzoate and cresol
  • insect repellents such as pyrethroids and diethyltoluamide
  • suspending agents In addition to the above ingredients, suspending agents, UV absorbers, emulsifiers, moisturizers, antioxidants, and sequestering agents may also be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Closures For Containers (AREA)

Abstract

La présente invention permet, dans un mécanisme d'évacuation de quantité fixe qui est adapté à un contenu liquide et dans lequel un mode de mesure et un mode d'évacuation sont commutés par l'intermédiaire d'une opération, d'empêcher la fuite du contenu, d'améliorer la flexibilité de conception et de réduire les coûts de fabrication.　Une chambre de quantité fixe A est délimitée par : une surface circonférentielle interne cylindrique côté amont 13d qui est disposée sur un bouchon mobile 13, et une surface circonférentielle interne cylindrique côté aval 13f qui est continue par rapport à la surface circonférentielle interne cylindrique côté amont ; et un piston côté amont 12d qui est disposé sur un couvercle d'épaulement 12, coulisse le long de la surface circonférentielle interne cylindrique côté amont 13d, et a une surface côté aval avec un centre bosselé, et une partie jupe côté aval 12h qui coulisse le long de la surface circonférentielle interne cylindrique côté aval 13f. Une partie jupe côté amont 13e, qui est disposée sur une partie bord de la surface circonférentielle interne cylindrique côté amont 13d, et le piston côté amont 12d constituent une soupape amont de la chambre de quantité fixe A. Une partie rainure 13g, qui est pratiquée dans la surface circonférentielle interne cylindrique côté aval 13f, et la partie jupe côté aval 12h constituent une soupape aval de la chambre de quantité fixe. Le besoin d'une configuration qui permet un mouvement relatif de la chambre de quantité fixe A vers la périphérie d'un orifice d'évacuation 13b est éliminé.
PCT/JP2025/011022 2024-03-25 2025-03-21 Mécanisme d'évacuation de quantité fixe et produit pourvu dudit mécanisme d'évacuation de quantité fixe Pending WO2025205426A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2024-048818 2024-03-25
JP2024048818 2024-03-25

Publications (1)

Publication Number Publication Date
WO2025205426A1 true WO2025205426A1 (fr) 2025-10-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2025/011022 Pending WO2025205426A1 (fr) 2024-03-25 2025-03-21 Mécanisme d'évacuation de quantité fixe et produit pourvu dudit mécanisme d'évacuation de quantité fixe

Country Status (1)

Country Link
WO (1) WO2025205426A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013230831A (ja) * 2012-04-27 2013-11-14 Yoshino Kogyosho Co Ltd 定量抽出容器
JP2020193034A (ja) * 2019-05-30 2020-12-03 株式会社吉野工業所 塗布容器
JP2022018086A (ja) * 2020-07-14 2022-01-26 三菱鉛筆株式会社 液体塗布容器

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013230831A (ja) * 2012-04-27 2013-11-14 Yoshino Kogyosho Co Ltd 定量抽出容器
JP2020193034A (ja) * 2019-05-30 2020-12-03 株式会社吉野工業所 塗布容器
JP2022018086A (ja) * 2020-07-14 2022-01-26 三菱鉛筆株式会社 液体塗布容器

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