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WO2015145902A1 - Medical fluid container - Google Patents

Medical fluid container Download PDF

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Publication number
WO2015145902A1
WO2015145902A1 PCT/JP2014/083743 JP2014083743W WO2015145902A1 WO 2015145902 A1 WO2015145902 A1 WO 2015145902A1 JP 2014083743 W JP2014083743 W JP 2014083743W WO 2015145902 A1 WO2015145902 A1 WO 2015145902A1
Authority
WO
WIPO (PCT)
Prior art keywords
mouth
outer frame
plug
rubber plug
rubber
Prior art date
Application number
PCT/JP2014/083743
Other languages
French (fr)
Japanese (ja)
Inventor
立石　勇
慎司 馬場
Original Assignee
株式会社大塚製薬工場
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 株式会社大塚製薬工場 filed Critical 株式会社大塚製薬工場
Priority to CN201480077427.XA priority Critical patent/CN106170278A/en
Priority to SG11201606797PA priority patent/SG11201606797PA/en
Priority to MYPI2016001714A priority patent/MY181146A/en
Publication of WO2015145902A1 publication Critical patent/WO2015145902A1/en
Priority to PH12016501859A priority patent/PH12016501859B1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/05—Containers specially adapted for medical or pharmaceutical purposes for collecting, storing or administering blood, plasma or medical fluids ; Infusion or perfusion containers
    • 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
    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/28—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness
    • B65D17/401—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall
    • B65D17/4011—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall for opening completely by means of a tearing tab
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/14—Details; Accessories therefor
    • A61J1/1406—Septums, pierceable membranes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/14—Details; Accessories therefor
    • A61J1/1412—Containers with closing means, e.g. caps
    • A61J1/1431—Permanent type, e.g. welded or glued
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/14—Details; Accessories therefor
    • A61J1/1462—Containers with provisions for hanging, e.g. integral adaptations of the container
    • 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
    • B65D1/00—Rigid or semi-rigid containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material or by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
    • B65D1/023—Neck construction
    • B65D1/0238—Integral frangible closures
    • 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
    • B65D23/00—Details of bottles or jars not otherwise provided for
    • B65D23/003—Suspension means
    • 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
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • 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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/002—Closures to be pierced by an extracting-device for the contents and fixed on the container by separate retaining means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/14—Details; Accessories therefor
    • A61J1/18—Arrangements for indicating condition of container contents, e.g. sterile condition
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/0003—Two or more closures
    • B65D2251/0006—Upper closure
    • B65D2251/0009—Upper closure of the 17-type
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/0003—Two or more closures
    • B65D2251/0006—Upper closure
    • B65D2251/0015—Upper closure of the 41-type
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/0003—Two or more closures
    • B65D2251/0037—Intermediate closure(s)
    • B65D2251/0059—Intermediate closure(s) of the 51-type
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/0003—Two or more closures
    • B65D2251/0068—Lower closure
    • B65D2251/0093—Membrane
    • B65D2251/0096—Membrane integral with the container

Definitions

  • the present invention relates to a chemical container having a container body molded by a blow fill seal method and a cap attached to the mouth of the container body.
  • a plastic bottle molded by a blow fill seal (BFS) method is known as a container for a chemical solution such as an infusion solution.
  • BFS blow fill seal
  • bottle formation, chemical filling, and bottle closing are performed continuously in a common mold. This method is suitable for mass production of bottles and can reduce costs.
  • JP 50-36290 A European Patent No. 0364783
  • a cap is attached to the mouth of a BFS bottle.
  • the cap is attached by, for example, disposing a rubber stopper on the top surface of the bottle, covering the rubber stopper and the mouth of the bottle with an outer frame material, and then welding the outer frame material and the bottle.
  • a rubber stopper (reference numeral 6 of Patent Document 1 and reference numeral 5 of Patent Document 2) has been applied to substantially the entire top surface of the bottle. It is the size to cover. In order to reduce the cost, the rubber plug is required to be downsized.
  • the rubber plugs are generally the same thickness, it is difficult to crimp the peripheral edge of the rubber plug with sufficient strength between the bottle and the outer frame material. This insufficient pressure bonding may cause liquid leakage when the needle is inserted into the rubber stopper.
  • An object of the present invention is to provide a chemical container capable of reducing cost by reducing the size of a rubber stopper and preventing liquid leakage from around the rubber stopper during needle sticking.
  • One embodiment of the present invention covers a container body integrally molded by a blow fill seal method, a rubber stopper disposed on the top of the mouth of the container body, the rubber stopper and the mouth.
  • An outer frame member having a receiving surface with which the mouth abuts, and an outer frame member having a crimping portion crimped in the direction of the bottom of the container body with respect to the mouth, and the rubber plug Is a chemical solution container including a plug body that covers a part of the zenith surface of the mouth part, and a collar part that extends between the crimping part and the mouth part from the lower outer periphery of the stopper body.
  • the portion of the rubber plug that is crimped by the mouth portion and the outer frame material is a collar portion that is relatively thin with respect to the stopper body, and therefore, between the mouth portion and the outer frame material (crimp portion).
  • the collar part of the rubber plug can be crimped with sufficient strength.
  • the rubber stopper can be firmly held by the buttock. Therefore, it is possible to suppress the rubber plug from moving when the needle is inserted into the plug main body, and the movement of the rubber plug from being pressed and greatly bent by the rubber plug. As a result, it is possible to prevent an extra liquid leakage path from being formed in the outer frame member, and thus it is possible to prevent liquid leakage from occurring around the rubber plug.
  • the plug body can be made smaller by reducing the amount of rubber material used in the buttocks, it is possible to at least reduce costs in accordance with the reduction of the amount used.
  • the plug main body of the rubber plug covers a central portion of the zenith surface of the mouth portion, and the collar portion of the rubber plug covers a peripheral portion of the zenith surface of the mouth portion. Moreover, it is formed in an annular shape over the entire circumference of the plug body.
  • the rubber plug is uniformly crimped with sufficient strength over the entire circumference of the peripheral edge. Thereby, liquid leakage can be prevented at any location around the rubber plug.
  • the outer frame member has a protrusion embedded in the upper surface of the plug body of the rubber plug.
  • the protrusion of the outer frame member is formed in an annular shape.
  • downward pressure corresponding to the protrusion amount of the projection of the outer frame material can be formed over the entire circumference of the rubber plug.
  • the plug body of the rubber plug has a protrusion deformed by pressing with the outer frame material.
  • the rubber plug can be pressed downward by the length corresponding to the protruding amount of the protrusion of the plug main body, so that liquid leakage can be prevented more favorably.
  • the outer frame member includes an annular plate portion as the pressure-bonding portion facing the peripheral portion of the zenith surface of the mouth portion across the collar portion of the rubber plug, and the annular plate portion.
  • An upper part that is integrally connected to the inner peripheral part and covers the stopper main body, and a lower part that is integrally connected to the outer peripheral part of the annular plate part and covers the mouth part.
  • the collar portion of the rubber plug extends to reach the inner peripheral surface of the lower portion of the outer frame material.
  • the mouth portion includes a flange portion formed over the entire circumference at a position spaced downward from the top surface, and a lower portion of the outer frame material is welded to the flange portion. Has been.
  • the lower part of the outer frame member includes a collar part formed over the entire circumference, and the collar part of the mouth part is welded to the lower surface of the collar part of the outer frame material. ing.
  • the depth h 2 of the lower part of the outer frame member is smaller than the sum of the height h 1 from the collar part of the mouth part and the thickness T 4 of the collar part of the rubber plug. .
  • the collar portion of the rubber plug can be crimped satisfactorily.
  • the collar portion of the rubber plug has a thickness of 0.2 mm to 3 mm.
  • the outer frame material includes a pull ring for opening an upper portion thereof.
  • FIG. 1 is a schematic perspective view of a chemical bottle according to an embodiment of the present invention.
  • FIG. 2 is a schematic cross-sectional view showing the configuration around the mouth of the chemical bottle of FIG.
  • FIG. 3 is a schematic bottom view of the outer frame member.
  • FIG. 4 is a diagram illustrating a part of the process of attaching the cap to the mouth.
  • FIG. 5 is a diagram showing the next step of FIG.
  • FIG. 6 is a diagram showing a step subsequent to FIG. 7A and 7B are diagrams showing a usage state of the chemical liquid bottle of FIG. 1, in which FIG. 7A shows a state when a needle is inserted into a rubber stopper, and FIG. 7B shows a state where the chemical liquid bottle is turned upside down. ing.
  • FIG. 8B are diagrams showing the usage state of the chemical bottle according to the reference example, FIG. 8A shows the state when the needle is inserted into the rubber stopper, and FIG. 8B shows the state where the chemical bottle is turned upside down. Show.
  • FIG. 9A and FIG. 9B are views showing modifications of the rubber plug, FIG. 9A shows a state before the cap is attached, and FIG. 9B shows a state after the cap is attached.
  • FIG. 10 is a diagram illustrating a modified example of the cap.
  • FIG. 1 is a schematic perspective view of a chemical bottle 1 according to an embodiment of the present invention.
  • FIG. 2 is a schematic cross-sectional view showing a configuration around the mouth portion 5 of the chemical liquid bottle 1 of FIG.
  • FIG. 3 is a schematic bottom view of the outer frame member 13.
  • the chemical bottle 1 as an example of the chemical container of the present invention includes a plastic bottle body 2 and an cap 3 as an example of the container body of the present invention.
  • the plastic bottle main body 2 integrally includes a body portion 4 in which a chemical solution is accommodated and a mouth portion 5 disposed on the top portion.
  • the cap 3 is attached to the mouth portion 5.
  • the plastic bottle main body 2 integrally having the barrel portion 4 and the mouth portion 5 can be produced by a blow fill seal (BFS) method.
  • BFS blow fill seal
  • a parison is produced by extruding the material of the plastic bottle body 2.
  • the material used is not particularly limited as long as it is plastic.
  • polyolefin resins such as polyethylene, polypropylene, poly (4-methylpentene), polytetrafluoroethylene, and polycyclic compounds such as ethylene-tetracyclododecene.
  • examples include olefin resins, and preferably polypropylene and polycyclic olefin resins.
  • Polyolefin resins such as polyethylene and polypropylene are generally low in elution for various chemical solutions and are general-purpose plastics. Therefore, elution of impurities into the chemical solution can be suppressed, and the cost of the plastic bottle body 2 can be reduced.
  • the materials used can be used alone or in combination of two or more.
  • the plastic bottle main body 2 may be formed in a single layer structure, or may be formed in a multilayer structure in which a plurality of resins are laminated.
  • the obtained parison is sandwiched between split molds to form the body 4 (blow process), and the inside of the body 4 is filled with a chemical (filling process).
  • the plastic bottle body 2 containing the chemical solution is obtained by forming the mouth part 5 between the split molds and sealing the open end of the mouth part 5 (sealing process).
  • the parts of the plastic bottle body 2 will be described more specifically.
  • the barrel 4 is formed in an elliptical bottle shape with a tapered upper part.
  • a scale 6 for indicating the amount of the chemical solution is provided on the outer peripheral surface of the body portion 4 along the depth direction of the plastic bottle main body 2.
  • a hanger 7 for hooking and using the chemical liquid bottle 1 is formed at the bottom of the body 4.
  • the hanger 7 is formed in, for example, a fin shape that protrudes from the flat bottom portion of the trunk portion 4.
  • the mouth part 5 is integrally connected to the body part 4 via the neck part 8 of the plastic bottle body 2.
  • the mouth portion 5 includes a substantially cylindrical tube portion 9 and an annular plate-shaped flange portion 10 (a flange portion) formed on the entire outer periphery of the lower portion of the tube portion 9.
  • the open end of the cylindrical portion 9 is closed by the top thin film 11 formed by the sealing process.
  • the top thin film 11 forms the top surface of the plastic bottle body 2.
  • the top thin film 11 is a portion that is formed thinner than the cylindrical portion 9 and the flange portion 10 and has flexibility. For example, as shown in FIG. 2, the thicknesses T 1 and T 2 of the cylindrical portion 9 and the bringe portion 10 are about 1.0 mm to 2.0 mm, whereas the thickness T 3 of the top thin film 11 is 0. About 3 mm to 0.6 mm. This thickness difference is caused by the plastic bottle body 2 being produced by the blow fill sealing method.
  • the cap 3 includes a rubber plug 12 and an outer frame member 13.
  • the rubber plug 12 is formed in a hat shape integrally including a cylindrical plug body 14 and an annular plate-like flange portion 15 formed over the entire circumference of the lower outer periphery of the plug body 14.
  • Concave portions 16 and 17 are formed in the center portions of the upper surface and the lower surface of the plug body 14, respectively.
  • the recess 16 and the recess 17 face each other, and the plug body 14 is selectively thinned at this position. By inserting a needle into the recess 16, a through hole can be easily formed in the rubber stopper 12.
  • the size of the plug body 14 is, for example, a height H 1 of 3 mm to 7 mm and a diameter D 1 of 15 mm to 25 mm.
  • the shape of the plug body 14 may be defined as a disk shape.
  • the size of the flange portion 15, for example, the thickness T 4 is the 0.2 mm ⁇ 3 mm, diameter D 2 is 25 mm ⁇ 40 mm.
  • extending the width W 1 of the flange portion 15 is, for example, 5 mm ⁇ 15 mm.
  • the material of the rubber plug 12 includes, for example, synthetic rubber such as butyl rubber and isoprene rubber, and thermoplastic elastomer such as olefin elastomer and styrene elastomer.
  • synthetic rubber such as butyl rubber and isoprene rubber
  • thermoplastic elastomer such as olefin elastomer and styrene elastomer.
  • thermoplastic elastomer such as olefin elastomer and styrene elastomer.
  • the outer frame member 13 includes a cylindrical mouth accommodating portion 18 (lower portion), a cylindrical rubber stopper accommodating portion 19 (upper portion) having a smaller diameter than the mouth portion accommodating portion 18, and the mouth accommodating portion 18.
  • An annular plate-shaped step portion 20 (crimping portion) that connects the upper end and the lower end of the rubber plug housing portion 19 is integrally included. That is, the outer frame member 13 has a two-stage structure in which the rubber stopper housing part 19 is placed on the mouth part housing part 18 via the step part 20.
  • An annular plate-like flange portion 21 is integrally formed on the outer periphery of the lower portion of the mouth portion accommodating portion 18 over the entire circumference.
  • a protrusion 22 is formed on the upper wall of the rubber plug housing portion 19 so as to protrude downward in the axial direction of the rubber plug housing portion 19.
  • the protrusion 22 is formed in a ring shape having a thickness of about 0.5 mm to 2 mm and a height of about 1 mm to 3 mm, for example.
  • the inner region surrounded by the protrusion 22 on the upper wall of the rubber stopper housing portion 19 is a detachable pull ring 23.
  • the pull ring 23 By pulling and removing the pull ring 23, the user can open the outer frame member 13 and expose the upper surface of the rubber stopper 12.
  • the stepped portion 20 has an inner periphery of the mouth accommodating portion 18 and an outer periphery of the rubber stopper accommodating portion 19 so that a horizontal plane perpendicular to the axial direction of the mouth accommodating portion 18 and the rubber stopper accommodating portion 19 appears. Each is connected vertically.
  • thermoplastic resin preferably polyethylene, polypropylene and the like.
  • FIG. 4 to FIG. 6 are diagrams showing the process of attaching the cap 3 to the mouth part 5 in order.
  • the cap 3 is assembled by fitting the plug body 14 of the rubber plug 12 into the rubber plug housing portion 19 of the outer frame member 13.
  • the diameter of the rubber plug 12 (diameter D 2 of the flange portion 15) may be substantially the same as the inner diameter D 3 of the mouth portion accommodating portion 18. That is, in the assembled cap 3, the outer periphery of the flange portion 15 of the rubber plug 12 may reach the inner peripheral surface of the mouth portion accommodating portion 18. With this configuration, since the pressure-bonding area of the flange portion 15 of the rubber plug 12 can be increased, the degree of pressure-bonding of the rubber plug 12 can be improved. Further, in this state, the protrusion 22 of the rubber plug housing portion 19 may not be reduced on the upper surface of the plug body 14.
  • the cap 3 is put on the mouth part 5 of the plastic bottle body 2.
  • the plastic bottle body 2 is pushed in until the flange portion 21 (the flange portion) of the outer frame member 13 comes into contact with the flange portion 10 of the mouth portion 5.
  • the mouth portion 5 and the outer frame member 13 are fixed by friction between the protrusion 31 provided on the cylindrical portion 9 and the inner peripheral surface of the mouth portion accommodating portion 18, and the lower surface of the flange portion 21 of the outer frame member 13 It is preferable to weld and fix the flange portion 10 of the mouth portion 5 in contact therewith.
  • known methods such as heat sealing, ultrasonic welding, and high frequency welding can be employed.
  • the depth h 2 needs to be slightly smaller than the height h 1 plus the thickness T 4 of the flange portion 15 of the rubber plug 12.
  • the top thin film 11 of the mouth portion 5 is covered with the plug main body 14 of the rubber plug 12 at the center and with the flange portion 15 of the rubber plug 12 at the peripheral edge.
  • the stepped portion 20 is formed horizontally with respect to the axial direction of the mouth portion accommodating portion 18 and the rubber plug accommodating portion 19, the outer frame member 13 has a clear two-stage structure. By pressing the step portion 20, a force along the axial direction can be easily applied, so that workability when the flange portion 15 is crimped can be improved.
  • the rubber stopper 12 is pushed by pushing the plastic bottle body 2.
  • the protrusion 22 of the rubber plug housing portion 19 is reduced to the peripheral edge portion of the upper surface of the plug body 14 and is embedded in the upper surface.
  • the mouth portion 5 and the outer frame member 13 are welded.
  • the flange portion 10 of the mouth portion 5 and the lower surface of the flange portion 21 of the outer frame member 13 are welded.
  • the cap 3 is completely attached through the above steps.
  • FIGS. 8A and 8B are diagrams showing the usage state of the chemical liquid bottle 1 of FIG. 1, in which FIG. 7A shows a state when the needle 24 is inserted into the rubber stopper 12, and FIG. 7B shows the chemical liquid bottle 1 upside down. Shows the state. 8A and 8B are diagrams showing the usage state of the chemical liquid bottle 25 according to the reference example.
  • FIG. 8A shows the state when the needle 24 is inserted into the rubber stopper 12, and
  • FIG. 8B shows the chemical liquid bottle 25 upside down. It shows the state. 7A and 7B, and FIGS. 8A and 8B both show a state in which the pull ring 23 is removed and an opening 26 is formed in the outer frame member 13.
  • 8A and 8B, parts corresponding to those shown in FIGS. 7A and 7B are denoted by the same reference numerals.
  • the difference between the chemical solution bottle 1 and the chemical solution bottle 25 is that the chemical solution bottle 25 does not include the step portion 20 of the outer frame member 13, and the rubber stopper accommodating portion 19 has a diameter substantially the same as the mouth portion accommodating portion 18 (slightly It is a point formed with a small diameter.
  • the chemical bottle 25 is not provided with the flange portion 15 of the rubber plug 12.
  • the chemical bottle 25, the rubber plug 12 of substantially the same diameter D 4 and the diameter D 2 of the flange portion 15 of the rubber plug 12 of the bottles 1 (the plug body 14) is formed in a uniform thickness.
  • the cylindrical portion 9 is in direct contact with the rubber stopper housing portion 19.
  • the rubber stopper 12 of the chemical solution bottle 25 is pressure-bonded between the mouth portion 5 and the outer frame member 13, the rubber stopper housing of the top thin film 11 of the mouth portion 5 and the outer frame member 13 is accommodated. It can be said that it is accommodated in a space partitioned by the portion 19.
  • the portion of the rubber plug 12 that is pressure-bonded by the mouth portion 5 and the outer frame member 13 is a flange portion 15 that is relatively thin with respect to the plug main body 14. Therefore, the flange portion 15 of the rubber plug 12 can be pressure-bonded with sufficient strength between the tubular portion 9 and the top thin film 11 of the mouth portion 5 and the step portion 20 of the outer frame member 13. As a result, the rubber stopper 12 can be firmly held by the flange portion 15.
  • the rubber plug 12 is pressurized corresponding to the protruding amount of the protrusion 22 by embedding the protrusion 22 of the outer frame member 13. Thereby, the leaked liquid is also shut off, and as a result, the liquid leakage can be effectively prevented.
  • the amount of rubber material used in the upper part of the flange portion 15 can be reduced and the plug body 14 can be downsized, so at least cost reduction corresponding to the reduction in the amount of use can be achieved. Can do.
  • the chemical bottle 1 reduces the cost by reducing the size of the rubber plug 12 and leaks from the periphery of the rubber plug 12 during needle sticking. It can be seen that this can be prevented.
  • the outer peripheral edge of the flange portion 15 of the rubber plug 12 may not reach the inner peripheral surface of the mouth portion accommodating portion 18.
  • the blocking of the liquid on the upper surface of the plug body 14 can be formed by a protrusion 30 formed on the upper surface of the plug body 14 as shown in FIG. 9A.
  • the protrusion 30 may be crushed and deformed by the outer frame member 13 in a state after the cap 3 is attached.
  • the protrusions 22 and 30 may be omitted.
  • the step part 20 which connects the opening
  • the shape of the plastic bottle main body 2 various bottle shapes such as a perfect circle bottle shape and a square bottle shape can be adopted in addition to the above-mentioned elliptical bottle shape.
  • a protective film or the like can be employed in addition to the pull ring 23 described above.

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Abstract

This medical fluid container includes: a container body integrally molded by a blow-fill-seal method; a rubber stopper disposed on a zenith plane of a mouth of the container body; and an external frame to be positioned over the rubber stopper and the mouth, the external frame having a receiving face on which the mouth abuts and having a crimped part crimped toward the bottom of the container body with respect to the mouth. The rubber stopper includes: a stopper body that covers a portion of the zenith plane of the mouth; and a flange part that extends between the crimped part and the mouth from a bottom circumference of the stopper body.

Description

薬液容器Chemical container

　本発明は、ブローフィルシール法によって成形された容器本体と、当該容器本体の口部に取り付けられたキャップとを有する薬液容器に関する。 The present invention relates to a chemical container having a container body molded by a blow fill seal method and a cap attached to the mouth of the container body.

　従来、輸液等の薬液用の容器として、ブローフィルシール（ＢＦＳ）法によって成形されたプラスチックボトルが知られている。ブローフィルシール法では、ボトルの成形、薬液の充填およびボトルの熔閉が、共通の金型内で連続して行われる。この方法は、ボトルの大量生産に適しており、コストダウンを図ることができる。 Conventionally, a plastic bottle molded by a blow fill seal (BFS) method is known as a container for a chemical solution such as an infusion solution. In the blow-fill sealing method, bottle formation, chemical filling, and bottle closing are performed continuously in a common mold. This method is suitable for mass production of bottles and can reduce costs.

特開昭５０－３６２９０号公報JP 50-36290 A 欧州特許第０３６４７８３号明細書European Patent No. 0364783

　一般的には、ＢＦＳボトルの口部にはキャップが取り付けられる。キャップは、例えば、ボトルの天頂面にゴム栓を配置し、ゴム栓およびボトルの口部を外枠材で覆った上で、外枠材とボトルとを溶着することによって取り付けられる。 Generally, a cap is attached to the mouth of a BFS bottle. The cap is attached by, for example, disposing a rubber stopper on the top surface of the bottle, covering the rubber stopper and the mouth of the bottle with an outer frame material, and then welding the outer frame material and the bottle.

　しかしながら、特許文献１の図１や特許文献２の図１に示されるように、従来、ゴム栓（特許文献１の符号６、特許文献２の符号５）が、ボトルの天頂面の略全面を覆う大きさである。コストダウンのために、ゴム栓の小型化が要求されている。 However, as shown in FIG. 1 of Patent Document 1 and FIG. 1 of Patent Document 2, conventionally, a rubber stopper (reference numeral 6 of Patent Document 1 and reference numeral 5 of Patent Document 2) has been applied to substantially the entire top surface of the bottle. It is the size to cover. In order to reduce the cost, the rubber plug is required to be downsized.

　また、ゴム栓が全体的に略同一の厚さであるため、ボトルと外枠材との間でゴム栓の周縁部を十分な強さで圧着することが難しい。この不十分な圧着が、ゴム栓に針を刺したときに液漏れを発生させるおそれがある。 Also, since the rubber plugs are generally the same thickness, it is difficult to crimp the peripheral edge of the rubber plug with sufficient strength between the bottle and the outer frame material. This insufficient pressure bonding may cause liquid leakage when the needle is inserted into the rubber stopper.

　本発明の目的は、ゴム栓の小型化によってコストダウンを図ると共に、針刺し時におけるゴム栓の周囲からの液漏れを防止することができる薬液容器を提供することである。 An object of the present invention is to provide a chemical container capable of reducing cost by reducing the size of a rubber stopper and preventing liquid leakage from around the rubber stopper during needle sticking.

　本発明の一実施形態は、ブローフィルシール法によって一体的に成形された容器本体と、前記容器本体の口部の天頂面に配置されたゴム栓と、前記ゴム栓および前記口部に被せられる外枠材であって、前記口部が当接する受け面を有し、前記口部に対して前記容器本体の底部の方向に圧着された圧着部を有する外枠材とを含み、前記ゴム栓は、前記口部の天頂面の一部を覆う栓本体と、前記栓本体の下部外周から前記圧着部と前記口部との間に延びる鍔部とを含む、薬液容器である。 One embodiment of the present invention covers a container body integrally molded by a blow fill seal method, a rubber stopper disposed on the top of the mouth of the container body, the rubber stopper and the mouth. An outer frame member having a receiving surface with which the mouth abuts, and an outer frame member having a crimping portion crimped in the direction of the bottom of the container body with respect to the mouth, and the rubber plug Is a chemical solution container including a plug body that covers a part of the zenith surface of the mouth part, and a collar part that extends between the crimping part and the mouth part from the lower outer periphery of the stopper body.

　この構成によれば、口部と外枠材によって圧着されるゴム栓の部分が、栓本体に対して相対的に薄い鍔部であるため、口部と外枠材（圧着部）との間でゴム栓の鍔部を十分な強さで圧着することができる。その結果、ゴム栓を鍔部でしっかりと保持することができる。したがって、栓本体への針刺し時に、ゴム栓が移動したり、その移動によって口部の天頂面がゴム栓に押圧されて大きく撓んだりすることを抑制することができる。これにより、外枠材内に余計な液漏れの経路が形成されることを防止できるので、ゴム栓の周囲から液漏れが発生することを防止することができる。 According to this configuration, the portion of the rubber plug that is crimped by the mouth portion and the outer frame material is a collar portion that is relatively thin with respect to the stopper body, and therefore, between the mouth portion and the outer frame material (crimp portion). With this, the collar part of the rubber plug can be crimped with sufficient strength. As a result, the rubber stopper can be firmly held by the buttock. Therefore, it is possible to suppress the rubber plug from moving when the needle is inserted into the plug main body, and the movement of the rubber plug from being pressed and greatly bent by the rubber plug. As a result, it is possible to prevent an extra liquid leakage path from being formed in the outer frame member, and thus it is possible to prevent liquid leakage from occurring around the rubber plug.

　また、鍔部におけるゴム材料の使用量を減らして栓本体を小型化できるので、少なくとも使用量の削減に応じたコストダウンを図ることができる。 Also, since the plug body can be made smaller by reducing the amount of rubber material used in the buttocks, it is possible to at least reduce costs in accordance with the reduction of the amount used.

　本発明の一実施形態では、前記ゴム栓の栓本体が、前記口部の天頂面の中央部を覆っており、前記ゴム栓の鍔部は、前記口部の天頂面の周縁部を覆うように、前記栓本体の全周に亘って環状に形成されている。 In one embodiment of the present invention, the plug main body of the rubber plug covers a central portion of the zenith surface of the mouth portion, and the collar portion of the rubber plug covers a peripheral portion of the zenith surface of the mouth portion. Moreover, it is formed in an annular shape over the entire circumference of the plug body.

　この構成によれば、ゴム栓が、その周縁部の全周に亘って、十分な強さで均等に圧着される。これにより、ゴム栓の周囲のいずれの箇所においても液漏れを防止することができる。 According to this configuration, the rubber plug is uniformly crimped with sufficient strength over the entire circumference of the peripheral edge. Thereby, liquid leakage can be prevented at any location around the rubber plug.

　本発明の一実施形態では、前記外枠材は、前記ゴム栓の栓本体の上面に埋め込まれた突起を有する。 In one embodiment of the present invention, the outer frame member has a protrusion embedded in the upper surface of the plug body of the rubber plug.

　この構成によれば、ゴム栓に、外枠材の突起の突出量に対応して下向きに加圧できるので、液漏れをより良好に防止することができる。 According to this configuration, since the rubber plug can be pressed downward in accordance with the protrusion amount of the protrusion of the outer frame material, liquid leakage can be prevented more favorably.

　本発明の一実施形態では、前記外枠材の前記突起は、環状に形成されている。 In one embodiment of the present invention, the protrusion of the outer frame member is formed in an annular shape.

　この構成によれば、外枠材の突起の突出量に対応する分の下向きへの加圧を、ゴム栓の全周に亘って形成することができる。 According to this configuration, downward pressure corresponding to the protrusion amount of the projection of the outer frame material can be formed over the entire circumference of the rubber plug.

　本発明の一実施形態では、前記ゴム栓の栓本体は、前記外枠材による押圧によって変形した突起を有する。 In one embodiment of the present invention, the plug body of the rubber plug has a protrusion deformed by pressing with the outer frame material.

　この構成によれば、ゴム栓に、栓本体の突起の突出量に対応する長さの分、下向きに加圧できるので、液漏れをより良好に防止することができる。 According to this configuration, the rubber plug can be pressed downward by the length corresponding to the protruding amount of the protrusion of the plug main body, so that liquid leakage can be prevented more favorably.

　本発明の一実施形態では、前記外枠材は、前記ゴム栓の鍔部を挟んで前記口部の天頂面の周縁部に対向する前記圧着部としての環状板部と、前記環状板部の内周部に一体的に接続され、前記栓本体を覆う上部と、前記環状板部の外周部に一体的に接続され、前記口部を覆う下部とを含む。 In one embodiment of the present invention, the outer frame member includes an annular plate portion as the pressure-bonding portion facing the peripheral portion of the zenith surface of the mouth portion across the collar portion of the rubber plug, and the annular plate portion. An upper part that is integrally connected to the inner peripheral part and covers the stopper main body, and a lower part that is integrally connected to the outer peripheral part of the annular plate part and covers the mouth part.

　この構成によれば、ゴム栓および口部を覆う部分（上部および下部）と、圧着部（環状板部）とが明確に区分されているため、鍔部を圧着するときの作業性を向上させることができる。 According to this structure, since the part (upper part and lower part) which covers a rubber stopper and an opening | mouth part and the crimping | compression-bonding part (annular plate part) are clearly divided, workability | operativity when crimping a collar part is improved. be able to.

　本発明の一実施形態では、前記ゴム栓の鍔部は、前記外枠材の下部の内周面に至るまで延びている。 In one embodiment of the present invention, the collar portion of the rubber plug extends to reach the inner peripheral surface of the lower portion of the outer frame material.

　この構成によれば、ゴム栓の圧着面積を増やすことができるので、ゴム栓の圧着度を向上させることができる。 According to this configuration, since the pressure-bonding area of the rubber plug can be increased, the pressure-bonding degree of the rubber plug can be improved.

　本発明の一実施形態では、前記口部は、その天頂面から下方に離れた位置で全周に亘って形成された鍔部を含み、当該鍔部に対して前記外枠材の下部が溶着されている。 In one embodiment of the present invention, the mouth portion includes a flange portion formed over the entire circumference at a position spaced downward from the top surface, and a lower portion of the outer frame material is welded to the flange portion. Has been.

　この構成によれば、外枠材が口部に固定されるので、ゴム栓が圧着された状態を良好に保持することができる。 According to this configuration, since the outer frame material is fixed to the mouth portion, it is possible to satisfactorily maintain the state in which the rubber stopper is crimped.

　本発明の一実施形態では、前記外枠材の下部は、その全周に亘って形成された鍔部を含み、前記口部の鍔部は、前記外枠材の鍔部の下面に溶着されている。 In one embodiment of the present invention, the lower part of the outer frame member includes a collar part formed over the entire circumference, and the collar part of the mouth part is welded to the lower surface of the collar part of the outer frame material. ing.

　本発明の一実施形態では、前記外枠材の下部の深さｈ２は、前記口部の鍔部からの高さｈ１と前記ゴム栓の鍔部の厚さＴ４の和よりも小さい。 In one embodiment of the present invention, the depth h 2 of the lower part of the outer frame member is smaller than the sum of the height h 1 from the collar part of the mouth part and the thickness T 4 of the collar part of the rubber plug. .

　この構成によれば、ゴム栓の鍔部を良好に圧着することができる。 According to this configuration, the collar portion of the rubber plug can be crimped satisfactorily.

　本発明の一実施形態では、前記ゴム栓の鍔部は、０．２ｍｍ～３ｍｍの厚さを有している。 In one embodiment of the present invention, the collar portion of the rubber plug has a thickness of 0.2 mm to 3 mm.

　本発明の一実施形態では、前記外枠材は、その上部を開放するためのプルリングを含む。 In one embodiment of the present invention, the outer frame material includes a pull ring for opening an upper portion thereof.

図１は、本発明の一実施形態に係る薬液ボトルの模式的な斜視図である。FIG. 1 is a schematic perspective view of a chemical bottle according to an embodiment of the present invention. 図２は、図１の薬液ボトルの口部周辺の構成を示す模式的な断面図である。FIG. 2 is a schematic cross-sectional view showing the configuration around the mouth of the chemical bottle of FIG. 図３は、外枠材の模式的な底面図である。FIG. 3 is a schematic bottom view of the outer frame member. 図４は、口部へのキャップの取り付け工程の一部を示す図である。FIG. 4 is a diagram illustrating a part of the process of attaching the cap to the mouth. 図５は、図４の次の工程を示す図である。FIG. 5 is a diagram showing the next step of FIG. 図６は、図５の次の工程を示す図である。FIG. 6 is a diagram showing a step subsequent to FIG. 図７Ａおよび図７Ｂは、図１の薬液ボトルの使用状態を示す図であって、図７Ａはゴム栓に針を刺したときの状態を示し、図７Ｂは薬液ボトルを逆さまにした状態を示している。7A and 7B are diagrams showing a usage state of the chemical liquid bottle of FIG. 1, in which FIG. 7A shows a state when a needle is inserted into a rubber stopper, and FIG. 7B shows a state where the chemical liquid bottle is turned upside down. ing. 図８Ａおよび図８Ｂは、参考例に係る薬液ボトルの使用状態を示す図であって、図８Ａはゴム栓に針を刺したときの状態を示し、図８Ｂは薬液ボトルを逆さまにした状態を示している。FIG. 8A and FIG. 8B are diagrams showing the usage state of the chemical bottle according to the reference example, FIG. 8A shows the state when the needle is inserted into the rubber stopper, and FIG. 8B shows the state where the chemical bottle is turned upside down. Show. 図９Ａおよび図９Ｂは、ゴム栓の変形例を示す図であって、図９Ａはキャップの取り付け前の状態を示し、図９Ｂはキャップの取り付け後の状態を示している。FIG. 9A and FIG. 9B are views showing modifications of the rubber plug, FIG. 9A shows a state before the cap is attached, and FIG. 9B shows a state after the cap is attached. 図１０は、キャップの変形例を示す図である。FIG. 10 is a diagram illustrating a modified example of the cap.

　以下では、本発明の実施の形態を、添付図面を参照して詳細に説明する。 Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

　図１は、本発明の一実施形態に係る薬液ボトル１の模式的な斜視図である。図２は、図１の薬液ボトル１の口部５周辺の構成を示す模式的な断面図である。図３は、外枠材１３の模式的な底面図である。 FIG. 1 is a schematic perspective view of a chemical bottle 1 according to an embodiment of the present invention. FIG. 2 is a schematic cross-sectional view showing a configuration around the mouth portion 5 of the chemical liquid bottle 1 of FIG. FIG. 3 is a schematic bottom view of the outer frame member 13.

　本発明の薬液容器の一例としての薬液ボトル１は、本発明の容器本体の一例としてのプラスチックボトル本体２と、キャップ３とを含む。 The chemical bottle 1 as an example of the chemical container of the present invention includes a plastic bottle body 2 and an cap 3 as an example of the container body of the present invention.

　プラスチックボトル本体２は、薬液が収容される胴部４と、その頂部に配置された口部５とを一体的に含む。キャップ３は、口部５に取り付けられる。 The plastic bottle main body 2 integrally includes a body portion 4 in which a chemical solution is accommodated and a mouth portion 5 disposed on the top portion. The cap 3 is attached to the mouth portion 5.

　胴部４および口部５を一体的に有するプラスチックボトル本体２は、ブローフィルシール（ＢＦＳ）法によって作製することができる。 The plastic bottle main body 2 integrally having the barrel portion 4 and the mouth portion 5 can be produced by a blow fill seal (BFS) method.

　例えば、まず、プラスチックボトル本体２の材料を押出成形することによって、パリソンを作製する。 For example, first, a parison is produced by extruding the material of the plastic bottle body 2.

　使用される材料としては、プラスチックであれば特に制限されず、例えば、ポリエチレン、ポリプロピレン、ポリ（４－メチルペンテン）、ポリテトラフルオロエチレン等のポリオレフィン系樹脂、エチレン－テトラシクロドデセン等のポリ環状オレフィン系樹脂等が挙げられ、好ましくは、ポリプロピレン、ポリ環状オレフィン系樹脂が挙げられる。ポリエチレンやポリプロピレン等のポリオレフィン系樹脂は、様々な薬液に対する溶出性が概ね低く、しかも汎用プラスチックである。そのため、薬液への不純物の溶出を抑制することができると共に、プラスチックボトル本体２のコストダウンを図ることができる。 The material used is not particularly limited as long as it is plastic. For example, polyolefin resins such as polyethylene, polypropylene, poly (4-methylpentene), polytetrafluoroethylene, and polycyclic compounds such as ethylene-tetracyclododecene. Examples include olefin resins, and preferably polypropylene and polycyclic olefin resins. Polyolefin resins such as polyethylene and polypropylene are generally low in elution for various chemical solutions and are general-purpose plastics. Therefore, elution of impurities into the chemical solution can be suppressed, and the cost of the plastic bottle body 2 can be reduced.

　また、使用される材料は、単独使用または２種以上併用することができる。また、プラスチックボトル本体２は、単一の層構造に形成してもよいし、複数の樹脂が積層された多層構造に形成してもよい。 Also, the materials used can be used alone or in combination of two or more. Moreover, the plastic bottle main body 2 may be formed in a single layer structure, or may be formed in a multilayer structure in which a plurality of resins are laminated.

　次に、得られたパリソンを割り型で挟み、胴部４を形成し（ブロー工程）、胴部４の内部に薬液を充填する（充填工程）。 Next, the obtained parison is sandwiched between split molds to form the body 4 (blow process), and the inside of the body 4 is filled with a chemical (filling process).

　次に、割り型で挟んで、口部５を形成し、口部５の開口端を密閉する（シール工程）ことによって、薬液が収容されたプラスチックボトル本体２が得られる。 Next, the plastic bottle body 2 containing the chemical solution is obtained by forming the mouth part 5 between the split molds and sealing the open end of the mouth part 5 (sealing process).

　プラスチックボトル本体２の各部をより具体的に説明する。 The parts of the plastic bottle body 2 will be described more specifically.

　胴部４は、上部がテーパーした楕円ボトル状に形成されている。胴部４の外周面には、薬液の量を示すための目盛り６が、プラスチックボトル本体２の深さ方向に沿って設けられている。胴部４の底部には、薬液ボトル１を引っ掛けて使用するための吊り具７が形成されている。吊り具７は、例えば、胴部４の平坦な底部から突出するフィン状に形成されている。 The barrel 4 is formed in an elliptical bottle shape with a tapered upper part. A scale 6 for indicating the amount of the chemical solution is provided on the outer peripheral surface of the body portion 4 along the depth direction of the plastic bottle main body 2. A hanger 7 for hooking and using the chemical liquid bottle 1 is formed at the bottom of the body 4. The hanger 7 is formed in, for example, a fin shape that protrudes from the flat bottom portion of the trunk portion 4.

　口部５は、プラスチックボトル本体２のネック部８を介して胴部４に一体的に接続されている。口部５は、略円筒状の筒部９と、筒部９の下部外周に全周に亘って形成された円環板状のフランジ部１０（鍔部）とを含む。 The mouth part 5 is integrally connected to the body part 4 via the neck part 8 of the plastic bottle body 2. The mouth portion 5 includes a substantially cylindrical tube portion 9 and an annular plate-shaped flange portion 10 (a flange portion) formed on the entire outer periphery of the lower portion of the tube portion 9.

　筒部９の開口端は、前記シール工程によって形成された頂部薄膜１１によって閉塞されている。この頂部薄膜１１が、プラスチックボトル本体２の天頂面を形成している。頂部薄膜１１は、筒部９やフランジ部１０に比べて薄く形成されて可撓性を有する部分である。例えば、図２に示すように、筒部９およびブランジ部１０それぞれの厚さＴ１およびＴ２が１．０ｍｍ～２．０ｍｍ程度であるのに対し、頂部薄膜１１の厚さＴ３は０．３ｍｍ～０．６ｍｍ程度である。この肉厚差は、プラスチックボトル本体２がブローフィルシール法によって作製されることに起因して発生するものである。 The open end of the cylindrical portion 9 is closed by the top thin film 11 formed by the sealing process. The top thin film 11 forms the top surface of the plastic bottle body 2. The top thin film 11 is a portion that is formed thinner than the cylindrical portion 9 and the flange portion 10 and has flexibility. For example, as shown in FIG. 2, the thicknesses T 1 and T 2 of the cylindrical portion 9 and the bringe portion 10 are about 1.0 mm to 2.0 mm, whereas the thickness T 3 of the top thin film 11 is 0. About 3 mm to 0.6 mm. This thickness difference is caused by the plastic bottle body 2 being produced by the blow fill sealing method.

　キャップ３は、ゴム栓１２と、外枠材１３とを含む。 The cap 3 includes a rubber plug 12 and an outer frame member 13.

　ゴム栓１２は、円柱状の栓本体１４と、栓本体１４の下部外周の全周に亘って形成された円環板状のフランジ部１５とを一体的に含むハット状に形成されている。 The rubber plug 12 is formed in a hat shape integrally including a cylindrical plug body 14 and an annular plate-like flange portion 15 formed over the entire circumference of the lower outer periphery of the plug body 14.

　栓本体１４の上面および下面の中心部には、それぞれ、凹部１６，１７が形成されている。凹部１６および凹部１７は互いに対向しており、この位置において栓本体１４が選択的に薄くなっている。凹部１６に針を刺すことによって、ゴム栓１２に簡単に貫通孔を形成することができる。 Concave portions 16 and 17 are formed in the center portions of the upper surface and the lower surface of the plug body 14, respectively. The recess 16 and the recess 17 face each other, and the plug body 14 is selectively thinned at this position. By inserting a needle into the recess 16, a through hole can be easily formed in the rubber stopper 12.

　栓本体１４のサイズは、例えば、高さＨ１が３ｍｍ～７ｍｍであり、径Ｄ１が１５ｍｍ～２５ｍｍである。径Ｄ１に対する高さＨ１の比率（Ｈ１／Ｄ１）が比較的小さい場合は、栓本体１４の形状を円板状と定義してもよい。一方、フランジ部１５のサイズは、例えば、厚さＴ４が０．２ｍｍ～３ｍｍであり、径Ｄ２が２５ｍｍ～４０ｍｍである。これから、フランジ部１５の延出幅Ｗ１は、例えば、５ｍｍ～１５ｍｍである。 The size of the plug body 14 is, for example, a height H 1 of 3 mm to 7 mm and a diameter D 1 of 15 mm to 25 mm. When the ratio of the height H 1 to the diameter D 1 (H 1 / D 1 ) is relatively small, the shape of the plug body 14 may be defined as a disk shape. On the other hand, the size of the flange portion 15, for example, the thickness T 4 is the 0.2 mm ~ 3 mm, diameter D 2 is 25 mm ~ 40 mm. Now, extending the width W 1 of the flange portion 15 is, for example, 5 mm ~ 15 mm.

　なお、ゴム栓１２の材料としては、例えば、ブチルゴムやイソプレンゴム等の合成ゴムや、例えば、オレフィン系エラストマーやスチレン系エラストマー等の熱可塑性エラストマーが挙げられる。特に、ゴム栓１２を射出成形によって成形する場合には、熱可塑性エラストマーを用いることが好ましい。 The material of the rubber plug 12 includes, for example, synthetic rubber such as butyl rubber and isoprene rubber, and thermoplastic elastomer such as olefin elastomer and styrene elastomer. In particular, when the rubber plug 12 is molded by injection molding, it is preferable to use a thermoplastic elastomer.

　外枠材１３は、円筒状の口部収容部１８（下部）と、口部収容部１８に比べて小さい径を有する円筒状のゴム栓収容部１９（上部）と、口部収容部１８の上端とゴム栓収容部１９の下端とを接続する円環板状の段部２０（圧着部）とを一体的に含む。つまり、外枠材１３は、段部２０を介して口部収容部１８の上にゴム栓収容部１９が乗る二段構造になっている。 The outer frame member 13 includes a cylindrical mouth accommodating portion 18 (lower portion), a cylindrical rubber stopper accommodating portion 19 (upper portion) having a smaller diameter than the mouth portion accommodating portion 18, and the mouth accommodating portion 18. An annular plate-shaped step portion 20 (crimping portion) that connects the upper end and the lower end of the rubber plug housing portion 19 is integrally included. That is, the outer frame member 13 has a two-stage structure in which the rubber stopper housing part 19 is placed on the mouth part housing part 18 via the step part 20.

　口部収容部１８の下部外周には、全周に亘って円環板状のフランジ部２１が一体的に形成されている。 An annular plate-like flange portion 21 is integrally formed on the outer periphery of the lower portion of the mouth portion accommodating portion 18 over the entire circumference.

　ゴム栓収容部１９の上壁には、ゴム栓収容部１９の軸方向下方に突出する突起２２が形成されている。突起２２は、例えば、０．５ｍｍ～２ｍｍ程度の厚さ、および１ｍｍ～３ｍｍ程度の高さを有するリング状に形成されている。 A protrusion 22 is formed on the upper wall of the rubber plug housing portion 19 so as to protrude downward in the axial direction of the rubber plug housing portion 19. The protrusion 22 is formed in a ring shape having a thickness of about 0.5 mm to 2 mm and a height of about 1 mm to 3 mm, for example.

　また、ゴム栓収容部１９の上壁の突起２２で取り囲まれた内方領域は、取り外し可能なプルリング２３となっている。使用者は、プルリング２３を引いて取り外すことによって、外枠材１３を開封してゴム栓１２の上面を露出させることができる。 Further, the inner region surrounded by the protrusion 22 on the upper wall of the rubber stopper housing portion 19 is a detachable pull ring 23. By pulling and removing the pull ring 23, the user can open the outer frame member 13 and expose the upper surface of the rubber stopper 12.

　段部２０は、口部収容部１８およびゴム栓収容部１９の軸線方向に対して垂直な水平面が現れるように、口部収容部１８の内周およびゴム栓収容部１９の外周に対して、それぞれ、垂直に接続されている。 The stepped portion 20 has an inner periphery of the mouth accommodating portion 18 and an outer periphery of the rubber stopper accommodating portion 19 so that a horizontal plane perpendicular to the axial direction of the mouth accommodating portion 18 and the rubber stopper accommodating portion 19 appears. Each is connected vertically.

　なお、外枠材１３の材料としては、例えば、熱可塑性樹脂が好ましい。具体的には、特に制限されず、例えば、ポリオレフィン（好ましくは、ポリエチレン、ポリプロピレン等）が挙げられる。 In addition, as a material of the outer frame material 13, for example, a thermoplastic resin is preferable. Specifically, it is not particularly limited, and examples thereof include polyolefin (preferably polyethylene, polypropylene and the like).

　次に、口部５へのキャップ３の取り付け方法を説明する。 Next, a method for attaching the cap 3 to the mouth portion 5 will be described.

　図４～図６は、口部５へのキャップ３の取り付け工程を順に示す図である。 FIG. 4 to FIG. 6 are diagrams showing the process of attaching the cap 3 to the mouth part 5 in order.

　まず、図４に示すように、外枠材１３のゴム栓収容部１９にゴム栓１２の栓本体１４を嵌め込むことによって、キャップ３を組み立てる。ゴム栓１２の径（フランジ部１５の径Ｄ２）は、口部収容部１８の内径Ｄ３と略同じであってもよい。つまり、組み上がったキャップ３において、ゴム栓１２のフランジ部１５の外周は、口部収容部１８の内周面に至っていてもよい。この構成によって、ゴム栓１２のフランジ部１５の圧着面積を増やすことができるので、ゴム栓１２の圧着度を向上させることができる。また、この状態では、ゴム栓収容部１９の突起２２は栓本体１４の上面に減り込んでいなくてもよい。 First, as shown in FIG. 4, the cap 3 is assembled by fitting the plug body 14 of the rubber plug 12 into the rubber plug housing portion 19 of the outer frame member 13. The diameter of the rubber plug 12 (diameter D 2 of the flange portion 15) may be substantially the same as the inner diameter D 3 of the mouth portion accommodating portion 18. That is, in the assembled cap 3, the outer periphery of the flange portion 15 of the rubber plug 12 may reach the inner peripheral surface of the mouth portion accommodating portion 18. With this configuration, since the pressure-bonding area of the flange portion 15 of the rubber plug 12 can be increased, the degree of pressure-bonding of the rubber plug 12 can be improved. Further, in this state, the protrusion 22 of the rubber plug housing portion 19 may not be reduced on the upper surface of the plug body 14.

　次に、プラスチックボトル本体２の口部５に対するキャップ３の位置を調節した後、プラスチックボトル本体２の口部５にキャップ３を被せる。 Next, after adjusting the position of the cap 3 with respect to the mouth part 5 of the plastic bottle body 2, the cap 3 is put on the mouth part 5 of the plastic bottle body 2.

　そして、図５に示すように、外枠材１３のフランジ部２１（鍔部）が口部５のフランジ部１０に当接するまで、プラスチックボトル本体２を押し込む。口部５と外枠材１３は、筒状部９に設けられた突起３１と口部収容部１８の内周面との摩擦によって固定されるが、外枠材１３のフランジ部２１の下面とそれに当接する口部５のフランジ部１０とを溶着して固定することが好ましい。溶着方法としては、ヒートシール、超音波溶着、高周波溶着等の公知の方法を採用することができる。なお、ゴム栓１２のフランジ部１５を圧着するため、口部５の高さｈ１と口部収容部１８の深さｈ２を調整する必要がある。すなわち、深さｈ２は、高さｈ１にゴム栓１２のフランジ部１５の厚さＴ４を加えたものよりも若干小さくする必要がある。これにより、口部５の頂部薄膜１１は、中央部がゴム栓１２の栓本体１４に覆われ、周縁部がゴム栓１２のフランジ部１５に覆われることとなる。この際、段部２０が口部収容部１８およびゴム栓収容部１９の軸線方向に対して水平に形成されているので、外枠材１３が明確な二段構造になっている。段部２０を押圧することによって、当該軸線方向に沿う力を簡単にかけることができるので、フランジ部１５を圧着するときの作業性を向上させることができる。 Then, as shown in FIG. 5, the plastic bottle body 2 is pushed in until the flange portion 21 (the flange portion) of the outer frame member 13 comes into contact with the flange portion 10 of the mouth portion 5. The mouth portion 5 and the outer frame member 13 are fixed by friction between the protrusion 31 provided on the cylindrical portion 9 and the inner peripheral surface of the mouth portion accommodating portion 18, and the lower surface of the flange portion 21 of the outer frame member 13 It is preferable to weld and fix the flange portion 10 of the mouth portion 5 in contact therewith. As a welding method, known methods such as heat sealing, ultrasonic welding, and high frequency welding can be employed. In order to crimp the flange portion 15 of the rubber plug 12, it is necessary to adjust the height h 1 and the depth h 2 of the mouth portion accommodating portion 18 of the mouth portion 5. That is, the depth h 2 needs to be slightly smaller than the height h 1 plus the thickness T 4 of the flange portion 15 of the rubber plug 12. As a result, the top thin film 11 of the mouth portion 5 is covered with the plug main body 14 of the rubber plug 12 at the center and with the flange portion 15 of the rubber plug 12 at the peripheral edge. At this time, since the stepped portion 20 is formed horizontally with respect to the axial direction of the mouth portion accommodating portion 18 and the rubber plug accommodating portion 19, the outer frame member 13 has a clear two-stage structure. By pressing the step portion 20, a force along the axial direction can be easily applied, so that workability when the flange portion 15 is crimped can be improved.

　また、プラスチックボトル本体２の押し込みによってゴム栓１２も押し込まれる。これにより、ゴム栓収容部１９の突起２２が栓本体１４の上面の周縁部に減り込んで、当該上面に埋め込まれた状態となる。 Also, the rubber stopper 12 is pushed by pushing the plastic bottle body 2. As a result, the protrusion 22 of the rubber plug housing portion 19 is reduced to the peripheral edge portion of the upper surface of the plug body 14 and is embedded in the upper surface.

　次に、図６に示すように、口部５に対してキャップ３を固定するため、口部５と外枠材１３を溶着する。この実施形態では、口部５のフランジ部１０と、外枠材１３のフランジ部２１の下面とが溶着される。 Next, as shown in FIG. 6, in order to fix the cap 3 to the mouth portion 5, the mouth portion 5 and the outer frame member 13 are welded. In this embodiment, the flange portion 10 of the mouth portion 5 and the lower surface of the flange portion 21 of the outer frame member 13 are welded.

　以上の工程を経て、キャップ３の取り付けが完了する。 The cap 3 is completely attached through the above steps.

　図７Ａおよび図７Ｂは、図１の薬液ボトル１の使用状態を示す図であって、図７Ａはゴム栓１２に針２４を刺したときの状態を示し、図７Ｂは薬液ボトル１を逆さまにした状態を示している。図８Ａおよび図８Ｂは、参考例に係る薬液ボトル２５の使用状態を示す図であって、図８Ａはゴム栓１２に針２４を刺したときの状態を示し、図８Ｂは薬液ボトル２５を逆さまにした状態を示している。図７Ａおよび図７Ｂ、ならびに図８Ａおよび図８Ｂともに、プルリング２３が取り外されて外枠材１３に開口２６が形成された状態を示している。また、図８Ａおよび図８Ｂにおいて、図７Ａおよび図７Ｂに示された各部と対応する部分には同一の参照符号を付して示す。 7A and 7B are diagrams showing the usage state of the chemical liquid bottle 1 of FIG. 1, in which FIG. 7A shows a state when the needle 24 is inserted into the rubber stopper 12, and FIG. 7B shows the chemical liquid bottle 1 upside down. Shows the state. 8A and 8B are diagrams showing the usage state of the chemical liquid bottle 25 according to the reference example. FIG. 8A shows the state when the needle 24 is inserted into the rubber stopper 12, and FIG. 8B shows the chemical liquid bottle 25 upside down. It shows the state. 7A and 7B, and FIGS. 8A and 8B both show a state in which the pull ring 23 is removed and an opening 26 is formed in the outer frame member 13. 8A and 8B, parts corresponding to those shown in FIGS. 7A and 7B are denoted by the same reference numerals.

　まず、薬液ボトル１と薬液ボトル２５との違いは、薬液ボトル２５は、外枠材１３の段部２０を備えておらず、ゴム栓収容部１９が口部収容部１８と略同じ径（若干小径）で形成されている点である。また、薬液ボトル２５がゴム栓１２のフランジ部１５を備えていない点においても、両者は異なっている。したがって、薬液ボトル２５では、薬液ボトル１のゴム栓１２のフランジ部１５の径Ｄ２と略同じ径Ｄ４のゴム栓１２（栓本体１４）が一様な厚さで形成されている。また、筒状部９がゴム栓収容部１９に直接当接している。そのため、薬液ボトル２５のゴム栓１２は、口部５と外枠材１３との間で圧着されていると言うよりは、むしろ、口部５の頂部薄膜１１と外枠材１３のゴム栓収容部１９とによって区画された空間に収容されていると言える。 First, the difference between the chemical solution bottle 1 and the chemical solution bottle 25 is that the chemical solution bottle 25 does not include the step portion 20 of the outer frame member 13, and the rubber stopper accommodating portion 19 has a diameter substantially the same as the mouth portion accommodating portion 18 (slightly It is a point formed with a small diameter. In addition, they are different in that the chemical bottle 25 is not provided with the flange portion 15 of the rubber plug 12. Thus, the chemical bottle 25, the rubber plug 12 of substantially the same diameter D 4 and the diameter D 2 of the flange portion 15 of the rubber plug 12 of the bottles 1 (the plug body 14) is formed in a uniform thickness. Further, the cylindrical portion 9 is in direct contact with the rubber stopper housing portion 19. Therefore, rather than saying that the rubber stopper 12 of the chemical solution bottle 25 is pressure-bonded between the mouth portion 5 and the outer frame member 13, the rubber stopper housing of the top thin film 11 of the mouth portion 5 and the outer frame member 13 is accommodated. It can be said that it is accommodated in a space partitioned by the portion 19.

　このような相違点を有する両薬液ボトル１，２５を使用した場合に液漏れが生じるかどうかについて、次に説明する。 Next, whether or not liquid leakage occurs when using both chemical bottles 1 and 25 having such differences will be described.

　図７Ａおよび図７Ｂの薬液ボトル１によれば、口部５と外枠材１３によって圧着されるゴム栓１２の部分が、栓本体１４に対して相対的に薄いフランジ部１５である。そのため、口部５の筒状部９および頂部薄膜１１と、外枠材１３の段部２０との間で、ゴム栓１２のフランジ部１５を十分な強さで圧着することができる。その結果、ゴム栓１２をフランジ部１５でしっかりと保持することができる。 7A and 7B, the portion of the rubber plug 12 that is pressure-bonded by the mouth portion 5 and the outer frame member 13 is a flange portion 15 that is relatively thin with respect to the plug main body 14. Therefore, the flange portion 15 of the rubber plug 12 can be pressure-bonded with sufficient strength between the tubular portion 9 and the top thin film 11 of the mouth portion 5 and the step portion 20 of the outer frame member 13. As a result, the rubber stopper 12 can be firmly held by the flange portion 15.

　したがって、図７Ａに示すように、栓本体１４へ針２４を刺して貫通孔２７を形成したときに、ゴム栓１２が口部５の内側に移動したり、その移動によって頂部薄膜１１がゴム栓１２に押圧されて大きく撓んだりすることを抑制することができる。 Therefore, as shown in FIG. 7A, when the needle 24 is pierced into the plug body 14 and the through hole 27 is formed, the rubber plug 12 moves to the inside of the mouth part 5 or the top thin film 11 is moved to the rubber plug by the movement. Therefore, it is possible to suppress the pressure from being greatly bent.

　これにより、図７Ｂに示すように、薬液ボトル１を逆さまにして使用する際にも、ゴム栓１２と頂部薄膜１１との密着状態を良好に維持でき、外枠材１３内に余計な液漏れの経路が形成されることを防止することができる。その結果、ゴム栓１２の周囲を介して開口２６から液が漏れること防止することができる。 As a result, as shown in FIG. 7B, even when the chemical bottle 1 is used upside down, the close contact state between the rubber stopper 12 and the top thin film 11 can be maintained satisfactorily, and extra liquid leaks into the outer frame member 13. It is possible to prevent the formation of the path. As a result, the liquid can be prevented from leaking from the opening 26 through the periphery of the rubber plug 12.

　さらに、栓本体１４の上面においても、外枠材１３の突起２２の埋め込みによって、当該突起２２の突出量に対応してゴム栓１２が加圧されている。これにより、万一漏れ出た液も遮断され、その結果、液漏れを効果的に防止することができる。 Furthermore, also on the upper surface of the plug body 14, the rubber plug 12 is pressurized corresponding to the protruding amount of the protrusion 22 by embedding the protrusion 22 of the outer frame member 13. Thereby, the leaked liquid is also shut off, and as a result, the liquid leakage can be effectively prevented.

　また、ゴム栓１２をハット状にすることによって、フランジ部１５の上方部分のゴム材料の使用量を減らして栓本体１４を小型化できるので、少なくとも使用量の削減に応じたコストダウンを図ることができる。 Further, by making the rubber plug 12 into a hat shape, the amount of rubber material used in the upper part of the flange portion 15 can be reduced and the plug body 14 can be downsized, so at least cost reduction corresponding to the reduction in the amount of use can be achieved. Can do.

　これに対し、図８Ａおよび図８Ｂの薬液ボトル２５によれば、段部２０（外枠材１３）およびフランジ部１５（ゴム栓１２）が備えられていない結果、図７Ａおよび図７Ｂの薬液ボトル１に比べて、ゴム栓１２の圧着度が低い。 On the other hand, according to the chemical solution bottle 25 of FIGS. 8A and 8B, the step portion 20 (outer frame member 13) and the flange portion 15 (rubber plug 12) are not provided, and as a result, the chemical solution bottle of FIGS. 7A and 7B. Compared to 1, the degree of pressure bonding of the rubber plug 12 is low.

　したがって、図８Ａに示すように、栓本体１４へ針２４を刺して貫通孔２７を形成したときに、ゴム栓１２が撓んで口部５の内側に移動すると共に、その移動によって頂部薄膜１１がゴム栓１２に押圧されて大きく撓んでしまう。 Therefore, as shown in FIG. 8A, when the needle 24 is pierced into the plug body 14 and the through hole 27 is formed, the rubber plug 12 bends and moves to the inside of the mouth part 5, and the top thin film 11 is moved by the movement. The rubber plug 12 is pressed and greatly bent.

　そのため、図８Ｂに示すように、薬液ボトル２５を逆さまにして使用する際に、ゴム栓１２と頂部薄膜１１との間やゴム栓１２と外枠材１３（ゴム栓収容部１９）との間に大きな隙間２８，２９が生じる。その結果、貫通孔２７から液漏れが生じた時に、その液が、これらの隙間２８，２９を液漏れ経路として簡単に伝って、開口２６から漏れるおそれがある。また、ゴム栓１２が、全体に亘って栓本体１４の厚さ（高さＨ１）で形成されているため、薬液ボトル１に比べてゴム栓１２の単価が高くなってしまう。 Therefore, as shown in FIG. 8B, when the chemical solution bottle 25 is used upside down, between the rubber stopper 12 and the top thin film 11 or between the rubber stopper 12 and the outer frame member 13 (rubber stopper accommodating part 19). Large gaps 28 and 29 are formed. As a result, when liquid leaks from the through hole 27, the liquid may easily travel through the gaps 28 and 29 as a liquid leak path and leak from the opening 26. Moreover, since the rubber plug 12 is formed with the thickness (height H 1 ) of the plug main body 14 throughout, the unit price of the rubber plug 12 is higher than that of the chemical liquid bottle 1.

　以上、図７Ａおよび図７Ｂと図８Ａおよび図８Ｂとの比較から、薬液ボトル１によれば、ゴム栓１２の小型化によってコストダウンを図ると共に、針刺し時におけるゴム栓１２の周囲からの液漏れを防止できることが分かる。 7A and 7B and FIG. 8A and FIG. 8B, the chemical bottle 1 reduces the cost by reducing the size of the rubber plug 12 and leaks from the periphery of the rubber plug 12 during needle sticking. It can be seen that this can be prevented.

　以上、本発明の実施形態を説明したが、本発明は、他の形態で実施することもできる。 As mentioned above, although embodiment of this invention was described, this invention can also be implemented with another form.

　ゴム栓１２のフランジ部１５の外周縁は、口部収容部１８の内周面に至っていなくてもよい。 The outer peripheral edge of the flange portion 15 of the rubber plug 12 may not reach the inner peripheral surface of the mouth portion accommodating portion 18.

　また、栓本体１４の上面における液の遮断は、図９Ａに示すように、栓本体１４の上面に形成された突起３０によって形成することもできる。この突起３０は、図９Ｂに示すように、キャップ３の取り付け後の状態において、外枠材１３によって押し潰されて変形していてもよい。 Also, the blocking of the liquid on the upper surface of the plug body 14 can be formed by a protrusion 30 formed on the upper surface of the plug body 14 as shown in FIG. 9A. As shown in FIG. 9B, the protrusion 30 may be crushed and deformed by the outer frame member 13 in a state after the cap 3 is attached.

　また、薬液ボトル１においては、突起２２，３０が省略されていてもよい。 In the chemical bottle 1, the protrusions 22 and 30 may be omitted.

　また、口部収容部１８とゴム栓収容部１９とを接続する段部２０は、図１０に示すように、収容部１８，１９の軸線方向に対して傾斜した面が現れるように設けられていてもよい。この構成においても、ゴム栓１２のフランジ部１５を段部２０と口部５との間で良好に圧着できるので、前述の効果を十分に発現することができる。 Moreover, the step part 20 which connects the opening | mouth part accommodating part 18 and the rubber plug accommodating part 19 is provided so that the surface inclined with respect to the axial direction of the accommodating parts 18 and 19 may appear as shown in FIG. May be. Also in this configuration, since the flange portion 15 of the rubber plug 12 can be favorably pressed between the step portion 20 and the mouth portion 5, the above-described effects can be sufficiently exhibited.

　また、プラスチックボトル本体２の形状としては、前述の楕円ボトル状の他、正円ボトル状、四角ボトル状等の種々のボトル形状を採用することができる。 Also, as the shape of the plastic bottle main body 2, various bottle shapes such as a perfect circle bottle shape and a square bottle shape can be adopted in addition to the above-mentioned elliptical bottle shape.

　また、使用時までゴム栓１２を保護し、使用時にゴム栓１２を露出させるために取り外される部材としては、前述のプルリング２３の他、保護フィルム等を採用することができる。 Further, as the member to be removed to protect the rubber plug 12 until use and to expose the rubber plug 12 at the time of use, a protective film or the like can be employed in addition to the pull ring 23 described above.

　その他、特許請求の範囲に記載された事項の範囲で種々の設計変更を施すことが可能である。 Other various design changes can be made within the scope of the matters described in the claims.

　本出願は、２０１４年３月２５日に日本国特許庁に提出された特願２０１４－６２４８６号に対応しており、この出願の全開示はここに引用により組み込まれるものとする。 This application corresponds to Japanese Patent Application No. 2014-62486 filed with the Japan Patent Office on March 25, 2014, the entire disclosure of which is incorporated herein by reference.

　１　薬液ボトル
　２　プラスチックボトル本体
　３　キャップ
　４　胴部
　５　口部
　９　筒部
　１０　フランジ部
　１１　頂部薄膜１１
　１２　ゴム栓
　１３　外枠材
　１４　栓本体
　１５　フランジ部
　１８　口部収容部
　１９　ゴム栓収容部
　２０　段部
　２１　フランジ部
　２２　突起
　２３　プルリング
　２４　針
　２５　薬液ボトル
　２６　開口
　２７　貫通孔
　２８　隙間
　２９　隙間
　３０　突起
  DESCRIPTION OF SYMBOLS 1 Chemical bottle 2 Plastic bottle main body 3 Cap 4 Trunk part 5 Mouth part 9 Tube part 10 Flange part 11 Top thin film 11
DESCRIPTION OF SYMBOLS 12 Rubber plug 13 Outer frame material 14 Plug main body 15 Flange part 18 Mouth part accommodating part 19 Rubber stopper accommodating part 20 Step part 21 Flange part 22 Projection 23 Pull ring 24 Needle 25 Chemical liquid bottle 26 Opening 27 Through hole 28 Gap 29 Gap 30 Protrusion

Claims (12)

　ブローフィルシール法によって一体的に成形された容器本体と、
　前記容器本体の口部の天頂面に配置されたゴム栓と、
　前記ゴム栓および前記口部に被せられる外枠材であって、前記口部が当接する受け面を有し、前記口部に対して前記容器本体の底部の方向に圧着された圧着部を有する外枠材とを含み、
　前記ゴム栓は、前記口部の天頂面の一部を覆う栓本体と、前記栓本体の下部外周から前記圧着部と前記口部との間に延びる鍔部とを含む、薬液容器。 A container body integrally formed by a blow fill seal method;
A rubber stopper disposed on the top of the mouth of the container body;
An outer frame material that covers the rubber plug and the mouth, and has a receiving surface with which the mouth abuts, and a crimping portion that is crimped to the mouth toward the bottom of the container body. Including outer frame material,
The rubber plug includes a plug main body that covers a part of the zenith surface of the mouth portion, and a collar portion that extends between the crimping portion and the mouth portion from a lower outer periphery of the plug main body. 　前記ゴム栓の栓本体が、前記口部の天頂面の中央部を覆っており、
　前記ゴム栓の鍔部は、前記口部の天頂面の周縁部を覆うように、前記栓本体の全周に亘って環状に形成されている、請求項１に記載の薬液容器。 The plug body of the rubber plug covers the center of the zenith surface of the mouth,
The liquid container according to claim 1, wherein the flange portion of the rubber plug is formed in an annular shape over the entire circumference of the plug body so as to cover a peripheral portion of the top surface of the mouth portion. 　前記外枠材は、前記ゴム栓の栓本体の上面に埋め込まれた突起を有する、請求項１または２に記載の薬液容器。 The chemical container according to claim 1 or 2, wherein the outer frame member has a protrusion embedded in an upper surface of a plug body of the rubber plug. 　前記外枠材の前記突起は、環状に形成されている、請求項３に記載の薬液容器。 The chemical solution container according to claim 3, wherein the protrusion of the outer frame member is formed in an annular shape. 　前記ゴム栓の栓本体は、前記外枠材による押圧によって変形した突起を有する、請求項１または２に記載の薬液容器。 The chemical liquid container according to claim 1 or 2, wherein the plug main body of the rubber plug has a protrusion deformed by pressing by the outer frame material. 　前記外枠材は、
　前記ゴム栓の鍔部を挟んで前記口部の天頂面の周縁部に対向する前記圧着部としての環状板部と、
　前記環状板部の内周部に一体的に接続され、前記栓本体を覆う上部と、
　前記環状板部の外周部に一体的に接続され、前記口部を覆う下部とを含む、請求項１～５のいずれか一項に記載の薬液容器。 The outer frame material is
An annular plate part as the pressure-bonding part facing the peripheral part of the zenith surface of the mouth part across the collar part of the rubber plug;
An upper part integrally connected to the inner peripheral part of the annular plate part and covering the stopper body;
The chemical container according to any one of claims 1 to 5, further comprising: a lower portion that is integrally connected to an outer peripheral portion of the annular plate portion and covers the mouth portion. 　前記ゴム栓の鍔部は、前記外枠材の下部の内周面に至るまで延びている、請求項６に記載の薬液容器。 The chemical liquid container according to claim 6, wherein a collar portion of the rubber plug extends to an inner peripheral surface of a lower portion of the outer frame member. 　前記口部は、その天頂面から下方に離れた位置で全周に亘って形成された鍔部を含み、当該鍔部に対して前記外枠材の下部が溶着されている、請求項６または７に記載の薬液容器。 The mouth part includes a collar part formed over the entire circumference at a position spaced downward from the top surface, and a lower part of the outer frame material is welded to the collar part. 7. The chemical container according to 7. 　前記外枠材の下部は、その全周に亘って形成された鍔部を含み、
　前記口部の鍔部は、前記外枠材の鍔部の下面に溶着されている、請求項８に記載の薬液容器。 The lower part of the outer frame member includes a collar part formed over the entire circumference thereof,
The chemical | medical solution container of Claim 8 with which the collar part of the said mouth part is welded to the lower surface of the collar part of the said outer frame material. 　前記外枠材の下部の深さｈ２は、前記口部の鍔部からの高さｈ１と前記ゴム栓の鍔部の厚さＴ４の和よりも小さい、請求項９に記載の薬液容器。 Lower depth h 2 of the outer frame member is smaller than the height h 1 and the sum of the thickness T 4 of the flange portion of the rubber stopper from the flange portion of the mouth portion, the drug solution according to claim 9 container. 　前記ゴム栓の鍔部は、０．２ｍｍ～３ｍｍの厚さを有している、請求項１～１０のいずれか一項に記載の薬液容器。 The chemical container according to any one of claims 1 to 10, wherein a collar portion of the rubber stopper has a thickness of 0.2 mm to 3 mm. 　前記外枠材は、その上部を開放するためのプルリングを含む、請求項１～１１のいずれか一項に記載の薬液容器。
  The medicinal solution container according to any one of claims 1 to 11, wherein the outer frame member includes a pull ring for opening an upper portion thereof.
PCT/JP2014/083743 2014-03-25 2014-12-19 Medical fluid container WO2015145902A1 (en)

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