JP2007119013A - Sealing container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a break open type container which is easily opened and handled by keeping a built-in agent difficult to stick to a finger, clothes, etc. in opening the container. <P>SOLUTION: A break open type sealing container is fixed at the front of a bottle having an opening and a storage part with a nozzle 2 whose roughly cylindrical front is closed. A protrusive part 2i is formed by protruding from the tip of the nozzle 2, and a cylinder 2c whose inner diameter is larger than the outer diameter of the protrusive part is provided on the back of the part 2i. A membraneous thin film 2j is formed to connect the part 2i and the part 2c and a thick part 2k thicker than the part 2j is formed at the base of the part 2i. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention is a break-opening sealed container that contains replenishing inks such as writing instruments and ink jet printers, paints, repair liquids, adhesives, cosmetics, chemicals, cleaning agents, seasonings, sweeteners, and other liquid agents and powders. About.

Conventionally, when removing a built-in agent in a container, a dispensing nozzle and an opening part are integrally formed in a container that is repeatedly removed little by little by removing a screw cap, or in a flexible container bottle by blow molding or injection molding. There is a break-opening type container (for example, an ampoule) having an opening made of a lid. In the opening portion of the container, a communication port that communicates the outside and the inside of the container serves as a spout for the built-in agent. In addition, the opening portion of the opening portion has a cylindrical shape, and is usually opened by holding the lid with a finger or the like and cutting or folding the lid. Moreover, it sometimes cut with a cutter such as a cutter or scissors.
JP 2000-41486 A.

Patent Document 1 discloses a nozzle cap for a trunk injection chemical solution container that can easily cut the cut portion b of the nozzle cap 20 by bending the finger pressing rod A of the nozzle cap 20 by finger pressing.
However, in the bending operation by pressing the nozzle cap with a finger, there is a case where the medicine contained in the container is adhered to a finger or clothes. Furthermore, there is a problem that the operation is troublesome when the container is used. This will be specifically described below.
First, the problem that the drug adheres to the finger or the like occurs because the trunk injection drug in the bottle 10 is also accumulated in the nozzle cap 20. When the finger pusher A is bent with a finger while the medicine is accumulated in the nozzle cap 20, the medicine is scattered to the outside at the same time as the bending, and the medicine adheres to the fingers and clothes. The medicine is also accumulated in the nozzle cap 20 when the container is in the horizontal or upside down state during the container manufacturing stage, distribution stage, user purchase stage or use stage. This is because a part of the medicine also moves from the bottle 10 into the nozzle cap 20 and the moved medicine is replaced with air in the nozzle cap 20. In particular, if the inside of the nozzle cap 20 is thin, the capillary force of the drug becomes strong. Therefore, even if the nozzle cap 20 faces upward, the drug does not easily move to the bottle side and remains.
In the case of innocuous liquids due to this drug adhesion problem, it does not become a significant problem. However, if the built-in agent is a powerful drug, it may cause a finger injury or a hole in the clothes. There was a problem. In addition, in the case of brightly colored ink such as replenishment ink instead of chemicals, there is a problem that fingers and clothes are contaminated.
Next, the problem of troublesome operations when using the container is that the finger pressing rod A of the nozzle cap 20 is once pushed and bent, and after the nozzle cap 20 is separated from the container, the container is inserted into the hole opened in the trunk. It was a hassle to do. In particular, when the container is flexible, there is also a problem that the container is accidentally pushed too much after the nozzle cap 20 is separated and the built-in medicine is spilled.
An object of the present invention is to provide a rupture-open container that can reduce the above-mentioned problem, that is, adhesion to fingers, clothes, and the like by a container built-in agent during the opening operation, and can be easily and easily handled. .

  The present invention relates to a rupture-open type sealed container in which a nozzle having a substantially cylindrical front closed is fixed to the front of a bottle having an opening and a storage part, and the protrusion protrudes from the tip of the nozzle. A cylindrical portion having an inner shape larger than the outer shape of the protruding portion, a thin thin-film portion that connects the protruding portion and the cylindrical portion, and The first gist is that a thick part thicker than the thin film part is provided at the base of the projection part, and a substantially cylindrical front nozzle is closed in front of a bottle having an opening part and a storage part. In a break-opening sealed container to which is fixed, a protruding portion is provided in a state of protruding from the tip of the nozzle, and a cylindrical portion having an inner shape larger than the outer shape of the protruding portion is provided behind the protruding portion. A thin-walled thin-film portion that connects the protruding portion and the cylindrical portion, and the front of the thin-film portion The second gist is that a circumferential groove is provided at a position away from the outer periphery of the projection, and a substantially cylindrical front closed nozzle is provided in front of the bottle having the opening and the storage. In the fixed breaking open type sealed container, a protruding portion is provided in a state of protruding from the tip of the nozzle, and a cylindrical portion having an inner shape larger than the outer shape of the protruding portion is provided behind the protruding portion. A thin-walled thin-film portion that connects the protrusion and the cylindrical portion, a rear protrusion is also provided on the rear side of the thin-film portion in the cylindrical portion, and is behind the outer periphery of the base behind the protrusion. The third aspect is that the outer circumference of the base at the front of the protrusion is enlarged, and after the nozzle part with the substantially cylindrical front closed from the front and the nozzle part and the storage part are integrated behind this nozzle part. In an open container with a broken end and a shaft with an open end and the rear end of the shaft closed with a lid, A projection is provided in a state of protruding from the tip of the nozzle, and a cylindrical portion having an inner shape larger than the outer shape of the projection is provided behind the projection, and the projection and the cylinder are connected to each other. The fourth aspect is that a thin thin film portion is provided and the front side of the protrusion is formed to be narrower than the rear side, and the front of the bottle having the opening and the storage portion has a substantially cylindrical front. In a rupture-opening sealed container, a front end of the cap is attached to a nozzle that is closed by a thin-walled thin film portion, and is covered with a substantially cylindrical cap that penetrates in front of the nozzle. The inner protrusion of the cap is provided on the inner periphery of the cap, the outer protrusion is provided on the outer periphery of the nozzle, and the inner protrusion of the cap and the outer protrusion of the nozzle are locked. Near the thin film portion of the nozzle from the front to the back of the cap. The fifth gist is that a columnar protrusion extending to the side is provided.

  The present invention relates to a rupture-open type sealed container in which a nozzle having a substantially cylindrical front closed is fixed to the front of a bottle having an opening and a storage part, and the protrusion protrudes from the tip of the nozzle. A cylindrical portion having an inner shape larger than the outer shape of the protruding portion, a thin thin-film portion that connects the protruding portion and the cylindrical portion, and The first gist is that a thick part thicker than the thin film part is provided at the base of the projection part, and a substantially cylindrical front nozzle is closed in front of a bottle having an opening part and a storage part. In a break-opening sealed container to which is fixed, a protruding portion is provided in a state of protruding from the tip of the nozzle, and a cylindrical portion having an inner shape larger than the outer shape of the protruding portion is provided behind the protruding portion. A thin-walled thin-film portion that connects the protruding portion and the cylindrical portion, and the front of the thin-film portion The second gist is that a circumferential groove is provided at a position away from the outer periphery of the projection, and a substantially cylindrical front closed nozzle is provided in front of the bottle having the opening and the storage. In the fixed breaking open type sealed container, a protruding portion is provided in a state of protruding from the tip of the nozzle, and a cylindrical portion having an inner shape larger than the outer shape of the protruding portion is provided behind the protruding portion. A thin-walled thin-film portion that connects the protrusion and the cylindrical portion, a rear protrusion is also provided on the rear side of the thin-film portion in the cylindrical portion, and is behind the outer periphery of the base behind the protrusion. The third aspect is that the outer circumference of the base at the front of the protrusion is enlarged, and after the nozzle part with the substantially cylindrical front closed from the front and the nozzle part and the storage part are integrated behind this nozzle part. In an open container with a broken end and a shaft with an open end and the rear end of the shaft closed with a lid, A projection is provided in a state of protruding from the tip of the nozzle, and a cylindrical portion having an inner shape larger than the outer shape of the projection is provided behind the projection, and the projection and the cylinder are connected to each other. The fourth aspect is that a thin thin film portion is provided and the front side of the protrusion is formed to be narrower than the rear side, and the front of the bottle having the opening and the storage portion has a substantially cylindrical front. In a rupture-opening sealed container, a front end of the cap is attached to a nozzle that is closed by a thin-walled thin film portion, and is covered with a substantially cylindrical cap that penetrates in front of the nozzle. The inner protrusion of the cap is provided on the inner periphery of the cap, the outer protrusion is provided on the outer periphery of the nozzle, and the inner protrusion of the cap and the outer protrusion of the nozzle are locked. Near the thin film portion of the nozzle from the front to the back of the cap. Since the fifth gist is to provide a columnar protrusion that extends to the side, the adhesion to the fingers and clothes due to the container built-in agent during the opening operation of the sealed container is reduced, and the opening operation is simple and easy to handle An unsealed container can be provided.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. 1 to 4 show a first embodiment. 1 shows a front view of the sealed container in cross section, FIG. 2 shows an enlarged cross-sectional view of the main part of FIG. 1, and FIG. 3 shows an enlarged view of the side of the main part excluding the cap 3 of FIG. 4 shows the use state diagram of FIG. Reference numeral 1 denotes a substantially bottomed cylindrical bottle formed by a direct blow molding method using a thermoplastic polypropylene resin material (manufactured by Nippon Polypro Co., Ltd., Novatec PP EG7FT) which is a flexible material. . The bottle 1 is provided with an opening 1a that opens from the front (upper side in the drawing) to the rear and a storage 1b that stores the liquid agent. A smooth opening end 1c is provided at the front end of the opening 1a. Further, a circumferentially enlarged portion 1d having a diameter larger than that of the opening 1a through a step is provided at the rear of the periphery of the opening 1a. The molding material of the bottle 1 is not colored so that the presence / absence of the built-in agent can be read from the outside, but may be colored to such an extent that the transparency is not impaired for identification of the built-in agent type and appearance. Of course, in order to avoid the influence of ultraviolet rays, it may be colored darkly and opaquely.
The bottle 1 is provided with a substantially cylindrical nozzle 2 so as to cover the opening 1a of the bottle 1 and extend forward. The nozzle 2 is formed by an injection molding method using a polypropylene resin material (PMC20M manufactured by Sun Allomer Co., Ltd.) which is a thermoplastic resin. The nozzle 2 is provided with a disc-shaped rear cylinder 2a whose periphery is suspended so as to cover the opening 1a of the bottle 1. A disk-shaped part at the front end of the rear cylinder part 2a is a disk part 2b. A cylindrical middle tube portion 2c extending forward from the center of the disc portion 2b is provided. On the back side of the disc portion 2b, a welding rib 2d protruding in a circumferential shape is provided toward the opening end 1c of the bottle 1. The welding rib 2d is provided to join the bottle 1 and the nozzle 2 by an ultrasonic welding method or a vibration welding method. On the front surface of the disc portion 2b, a recessed portion 2e is provided in which the periphery of the base of the middle tube portion 2c is recessed. The boundary between the disc part 2b and the hollow part 2e is an outer edge part 2f. In front of the middle tube portion 2c, a cylindrical tip tube portion 2g having a reduced diameter through a step is provided. At the tip of the front tube portion 2g, two cutout portions 2h cut out in a curved shape are provided. Further, the middle tube portion 2c is provided with a cylindrical projection 2i that extends forward from the axial center side of the middle tube portion 2c and protrudes beyond the front tube portion 2g so that the front end is closed. A thin thin film portion 2j is provided on the front inner circumference of the middle cylinder portion 2c so as to connect the inner circumference of the middle cylinder portion 2c and the rear end outer circumference of the protrusion 2i. On the outer periphery of the base of the protrusion 2i, the corner of the base of the protrusion 2i is formed to be curved, and a thick part 2k thicker than the thin film part 2j is provided on the entire periphery. A space S that is equal to or larger than the outer diameter of the protrusion 2i is provided in the middle cylinder 2c behind the thin film 2j. The molding material of the nozzle 2 is not colored so that the ultrasonic welding state can be easily read from the outside. For the purpose of identifying the built-in agent type and appearance, it may be colored to the extent that transparency is not impaired. Of course, if the opacity requirement exceeds the transparency, it may be dark and opaque.
A pipe-like cap 3 is provided on the outer periphery of the front tube portion 2g of the nozzle 2 so as to extend forward from the outer periphery of the front tube portion 2g to the protrusion 2i or more. This cap 3 is formed by extrusion molding with a low-density polyethylene resin material (manufactured by Nippon Polyethylene Co., Ltd., LJ401 of Novatec LD). The cap 3 is a protective member provided to prevent the protruding portion 2i of the nozzle 2 from being tilted by touching with a finger or the like during the opening operation, or from being damaged and opening the thin film portion 2j. The cap 3 is also a vibration buffer member for preventing the thin film portion 2j of the nozzle 2 from being damaged by ultrasonic vibration during the process of ultrasonically welding the bottle 1 and the nozzle 2. Furthermore, the cap 3 is also a protective member until the sealed container is purchased through the distribution stage from the manufacture and immediately before being used by the user. That is, since it is a member that is removed when the sealed container is used, only the cap 3 is colored in a different color from other parts so that it can be distinguished from the bottle 1 and the nozzle 2. Specifically, the cap 3 is colored opaque red.
In addition, although the bottle 1 and the nozzle 2 were illustrated by ultrasonic welding joining, the screwing which provided the screw in both members, and the climbing rib joining which provided the rib in the junction part of both members may be sufficient. Moreover, although the airtight container was illustrated by the cylindrical shape, you may provide with various forms, such as a square tube, a triangular pyramid, a spherical shape, and an animal doll. The nozzle shape may also be provided in various forms such as a rectangular tube, an elliptical tube, and a triangular pyramid. Further, the capacity of the bottle 1 may be as small as a disposable soy sauce container or as large as a one-necked bottle. The breaking opening is not limited to one place, and a plurality of places may be provided as necessary.

The materials of bottle 1 and nozzle 2 are anti-oxidation, moisture absorption prevention of powders and tablets, built-in agent characteristics such as oil-based solvent, aqueous solvent, acidity, alkalinity, necessity of flexibility, and transparent to indicate the remaining amount of built-in agent It may be selected from thermoplastic resins or the like according to the purpose of use such as the property and appearance of the appearance.
For example, in a single resin material of thermoplastic resin, acrylonitrile / styrene resin, acrylonitrile / butadiene / styrene resin, polyvinyl chloride resin, polyacetal resin, polyamide resins (PA6 / PA66 / PA610 / PA11 / PA12), polyarylate resin , Thermoplastic elastomers (urethane, olefin, styrene, polyamide, polyester, nitrile), polyether ether ketone, polysulfone resin, low density polyethylene, high density polyethylene, linear low density polyethylene, polyethylene terephthalate , Polycarbonate resin, polystyrene resin, polyphenylene ether resin, polyphenylene sulfide resin, polybutadiene resin, polybutylene terephthalate resin, polyethylene naphthalate Resins, polypropylene resins, methacrylic resins, and the like. In addition, for the purpose of improving heat resistance, cold resistance, impact resistance, etc., a polymer alloy material obtained by mixing these various resin materials can be used, or the characteristics of each additive can be modified. Furthermore, once the products used in the market are separated for each molding material, recycled molding materials that have been recycled and molding materials (off-grade) that are not specified by the material manufacturer can also be used. Further, a plant drug container or the like used in the soil may be formed of a biodegradable resin so that the container is naturally decomposed after the built-in agent is supplied.
For use in medicines and hygiene agents, it can be molded using a material in which an antibacterial agent is kneaded in advance. There are organic and inorganic antibacterial agents, but inorganic ones are preferred over organic ones. As inorganic substances, silver, copper, zinc, copper oxide, etc., and these substances are oxidized. Examples include those adsorbed and fixed on inorganic fine particles such as silicon and calcium carbonate.
The material of the cap 3 is preferably a different material from the nozzle 2 and having a different hardness. In addition to the above materials, the cap 3 is made of synthetic rubber, butadiene rubber, which is a diene synthetic rubber, polyisoprene, chloroprene rubber, nitrile rubber, butyl rubber, ethylene propylene rubber, which is a non-diene synthetic rubber, For urethane rubber, chlorosulfonated polyethylene, acrylic rubber, fluororubber, and other rubbers, silicon rubber, chlorinated polyethylene, epichlorohydrin, polysulfide rubber, etc. may be selected.

The operation will be described with reference to FIG. 4 indicates the desk surface, and FIG. 4 shows a state in which the protrusion 2i of the nozzle 2 is pushed into the desk surface P. The body of the bottle 1 of the unsealed sealed container is held with one hand, and the nozzle 2 located at a position away from the body of the bottle 1 is pressed against the desk surface P. Further, the nozzle 2 is pushed toward the desk surface P. Then, due to the continuous pressing force, the tip of the protrusion 2 i of the nozzle 2 comes into contact with the desk surface P, and at the same time, the thin film portion 2 j is broken and the protrusion 2 i is pushed into the space S behind the nozzle 2. At this time, since the front tube portion 2g is provided so as to surround the front of the protruding portion 2i, it is possible to suppress left and right deflection with respect to the axial center when the protruding portion 2i is pushed. A portion where the thin film portion 2j is broken becomes a breaking opening (break opening) 21. The built-in agent in the sealed container passes through the break opening 2l and is discharged toward the desk surface P from the notch 2h at the tip of the front tube portion 2g. In this way, the opening operation can be performed by simply pressing the nozzle 2 on the desk or the like with one hand holding the body of the bottle 1 of the sealed container at a position away from the opening position. It is possible to reduce the adhesion of the built-in agent to fingers and clothes rather than to open all. Further, since the opening operation can be performed with one hand, it is easier than the opening operation with both hands. Although the downward opening operation in which the sealed container is pressed against the desk surface P is illustrated, the opening operation direction is not limited to the downward direction, as long as it is pressed upward or laterally on any hard surface.
Note that the break opening 2l is provided with a thick portion 2k formed by bending the base of the protrusion 2i, and the thick portion 2k is provided thicker than the thin film portion 2j, and therefore the thick portion 2k is not provided. As a result, it is possible to reliably open a large opening while suppressing variations. This is because if the thick part 2k is not provided, the fracture position of the thin film part 2j may occur at the root of the protrusion 2i. When the fracture position of the thin film portion 2j occurs at the root of the protrusion 2i, the opening area of the fracture opening 2l becomes minute (the fracture position of the thin film portion 2j occurs between the outer periphery and the inner periphery of the thin film portion 2j). That is, the opening area of the fracture opening 2l is an area obtained by subtracting the outer diameter value of the protrusion 2i remaining in the immediate vicinity of the fracture opening 2l from the outer diameter value of the base of the protrusion 2i which is the opening diameter of the fracture opening 21. Is due to. On the other hand, when the thick portion 2k is provided, the opening portion of the break opening 2l has a size obtained by adding the length of the thick portion 2k perpendicular to the axis to the outer peripheral diameter of the base of the protrusion 2i. Become. Therefore, the opening area of the fracture opening 21 can increase the dimensional allowance in the direction perpendicular to the axis of the thick part 2k, compared with the case where the thick part 2k is not provided. As a result, a large amount can be discharged without making the internal agent discharge extremely small. In order to discharge the internal agent in a very small amount with less variation, the thick portion 2k may be provided on the outer peripheral edge of the thin film portion 2j. Moreover, the bottle 1 of the airtight container is provided flexibly so as to press the bottle 1, or the bottle 1 is hardened and filled with a high-pressure agent in which a propellant is added to the built-in agent, and is built in by the pressure. The agent may be discharged and used up immediately. Of course, the closed container may be opened upward and the internal agent may be sucked and injected into the syringe.

FIG. 5 shows an enlarged cross-sectional view of the main part of the second embodiment. The difference from the first embodiment is that a recess 12m is provided on the entire circumference of the rear surface side of the thin film portion 12j of the nozzle 12. The most depressed part of the recess 12m is provided at a position where the diameter is larger than the outer periphery of the root of the protrusion 12i. Further, on the outer periphery of the base of the projecting portion 12i, a front inclined portion 12n that extends in an inclined manner from the front to the rear is provided on the entire periphery toward the outer peripheral edge of the thin film portion 12j. Furthermore, the length from the center side of the thin film part 12j to an outer periphery is provided short.
The thickness in the axial front-rear direction around the outer periphery of the base of the protrusion 12i is thicker than the thin film portion 12j where the recess 12m is located. Therefore, the thin film portion 12j of the nozzle 12 is provided at a position where the diameter is larger than the outer periphery of the base of the protrusion 12i. In this embodiment, since the recess 12m is provided, the opening can be made large while suppressing variations. The reason why the front inclined portion 12n is provided is to more reliably increase the opening area at the time of opening. That is, in addition to the increase in the thickness in the longitudinal direction of the outer periphery of the base of the protrusion 12i due to the recess 12m, the front inclined portion 12n is added to the increase in the thickness in the longitudinal direction of the outer periphery of the root of the protrusion 12i. It is. Since the thickness is increased at both the concave portion 12m and the front inclined portion 12n, the thickness difference from the thin film portion 12j is increased, and it is more certain to increase the opening area at the time of opening.
Furthermore, although the thin film portion 12j is in a ruptured state, when polypropylene resin is used for the nozzle 12, the elongation of the rupture portion is longer and the shape of the rupture edge is like a sawtooth as compared with acrylonitrile / styrene resin or polycarbonate resin. There is a tendency. In the present embodiment, since the length from the axial center side to the outer peripheral edge of the thin film portion 12j is short, the resin elongation at the time of breaking can be shortened rather than the length being long. Since the resin elongation at the time of rupture is short, it can be opened greatly.

6 and 7 show a third embodiment. 6 shows an enlarged cross-sectional view of the main part, and FIG. 7 shows a top view of FIG. The difference between the first embodiment and the second embodiment is that ten ribs 22o are inclined on the outer periphery of the base of the protrusion 22i of the nozzle 22 from the front toward the rear of the outer periphery of the thin film portion 22j and extend radially. Is provided. Furthermore, the inner peripheral diameter of the back surface of the thin film portion 22j is made larger than the rear end diameter on the inner peripheral side of the front tube portion 22g. The thickness of the rib 22o at the outer periphery of the base of the protrusion 22i is thicker than the thin film portion 22j. Further, the thinnest portion of the thin film portion 22j of the nozzle 22 is provided at a position away from the outer periphery of the base of the protrusion 22i. Therefore, since the rib 22o is provided in the present embodiment, the opening area at the time of opening can be increased.
Further, in the injection molding, a slight axial misalignment of the front and rear shapes with the thin film portion 22j as a boundary is caused to make the inner peripheral diameter of the back surface of the thin film portion 22j larger than the rear end diameter on the inner peripheral side of the front tube portion 22g. As much as possible, it becomes acceptable. Specifically, the core pin of the mold that molds the axial center side of the nozzle 22 has a fixed core pin that forms an inner shape of the front cylindrical portion 22g on the thin film portion 22j, and an inner side of the rear cylindrical portion 22c. It consists of a movable core pin that forms a shape. This is because even if the fixed-side core pin and the movable-side core pin are slightly displaced from each other, the film thickness of the thin film portion 22j is hardly affected. In other words, since the tip diameter of the movable core pin is larger than the rear end diameter of the fixed core pin, the diameter difference between the two core pins, the axis of the rear end diameter of the fixed core pin becomes the axis of the movable core pin. This is because the circular shape of the thin film portion 22j is not lost even if it is eccentric.
Further, since the thin film portion 22j is provided in a horizontal shape perpendicular to the axial center including the first embodiment, the axial misalignment of both core pins is made rather than the thin film portion having an oblique shape such as a conical cylinder shape. The film thickness non-uniformity of the thin film portion 22j due to can be suppressed. This is because when the thin film portion 22j is formed in a conical cylinder shape, the axial misalignment between the fixed side core pin and the movable side core pin is reduced on the shifted side surface of the conical cylinder shape and thick on the opposite side of the shifted side surface of the conical cylinder shape. is there. However, in the case where the thin film portion 22j is provided in a horizontal shape, there is no portion corresponding to the side surface thickness of the axial misalignment.

  8 and 9 show a fourth embodiment. FIG. 8 shows an enlarged cross-sectional view of the main part, and FIG. 9 shows a top view of FIG. The difference from the first embodiment to the third embodiment is that eight vertical ribs 32p are formed on the outer periphery of the protrusion 32i of the nozzle 32 in parallel with the axial center of the nozzle 32 from the root of the protrusion 32i to the front. Provided. The portion of the vertical rib 32p on the outer periphery of the base of the protrusion 32i is thicker than the thin film portion 32j due to the vertical rib 32p. Further, the thinnest portion of the thin film portion 32j of the nozzle 32 is provided at a position away from the outer periphery of the base of the protrusion 32i. Therefore, in the present embodiment, since the vertical rib 32p is provided, the opening area at the time of opening can be increased. Furthermore, since the gap between the inner peripheral surface of the front tube portion 32g and the outer periphery of the protrusion 32i is narrowed by the vertical ribs 32p, the swing of the protrusion 32i when the protrusion 32i is pushed in at the time of opening can be suppressed, and thus stable. Push-in opening operation is possible.

  FIG. 10 shows an enlarged cross-sectional view of the main part of the fifth embodiment. The difference from the first embodiment is that a groove portion 42q of the entire circumference is provided on the rear surface side of the thin film portion 42j of the nozzle 42 at a position away from the outer periphery of the root of the protrusion 42i. In the present embodiment, since the groove 42q is thinner than the thin film portion 42j, the opening area at the time of opening can be increased. In addition, you may provide the groove part 42q in the front side of the thin film part 42j. Further, the groove part 42q may be provided on both the front and rear sides of the thin film part 42j.

FIG. 11 shows an enlarged cross-sectional view of the main part of the sixth embodiment. The difference from the first embodiment to the fifth embodiment is that the thin film portion 52j of the nozzle 52 is provided at a position slightly behind the tip of the front tube portion 52g. Further, a cylindrical rear projection 52r extending rearward is provided on the back side of the thin film portion 52j with the thin film portion 52j as a boundary. The protrusion 52i and the rear protrusion 52r are provided so that the front is open and the rear end is closed. The outer diameter of the front root of the rear protrusion 52r is set to be slightly larger than the outer diameter of the rear root of the protrusion 52i. A large number of inner longitudinal ribs 52s are provided on the inner peripheral surface of the front tube portion 52g in parallel with the axis of the nozzle 52 from the thin film portion 52j to the rear.
Since the outer diameter of the rear root of the rear protrusion 52r is larger than the outer diameter of the front root of the protrusion 52i, the opening of the thin film portion 52i when opened is larger than the outer diameter of the root of the front protrusion 52i. It can be opened. In addition, since a large number of inner vertical ribs 52s are provided on the inner surface of the front tube portion 52g, the inner surface of the front tube portion 52g can be prevented from swinging when the protrusion 52i is pushed in when opened.

A seventh embodiment is shown in FIGS. 12 is a front view showing the sealed container in cross section, FIG. 13 is an enlarged cross-sectional view of the main part of FIG. 12, FIG. 14 is an enlarged bottom view of the front lid 66 described later, and FIG. The use state diagram is shown. Reference numeral 64 is an axis having a rear end that is formed by molding a thermoplastic resin by an injection molding method. Behind the shaft 64, a cylindrical internal agent storage portion 64a is provided. In front of the shaft 64, there is provided a nozzle portion 64b having a narrower cylindrical shape than the storage portion 64a. In front of the nozzle portion 64b, a cylindrical tip tube portion 64c having a reduced diameter through a step is provided. On the axial center side of the front tube portion 64c, a cylindrical protrusion front portion 64d and a protrusion rear portion 64e having a closed front end are provided in order from the front to the rear so as to protrude from the front tube portion 64c. The protrusion rear part 64e is provided so as to have a larger diameter than the protrusion front part 64d. A thin thin film portion 64f is provided on the front inner periphery of the nozzle portion 64b so as to connect the inner periphery and the rear end outer periphery of the protrusion rear portion 64e.
A bottomed cylindrical lid 65 is provided so as to seal and close the rear end of the shaft 64. The shaft 64 and the lid 65 are joined so that the inner circumferential rib provided on the rear inner circumference of the shaft 64 and the outer circumferential rib provided on the outer circumference of the lid 65 are fitted over each other in the axial direction.
A cylindrical cap 63 having a front end closed and extending forward from the outer periphery to the front of the protrusion 64d is covered on the outer periphery of the front tube portion 64c of the shaft 64.
In the cap 63, a flat tip cover 66 is fixed to the front end of the protrusion front portion 64d of the shaft 64. The front lid 66 is provided with notches 66a that are cut out in three arcs around the side surface, and a hole 66b is provided at the rear. The hole portion 66b of the front lid 66 is inserted and fixed to the front end of the projection front portion 64d of the shaft 64. The outer periphery of the front cover 66 is provided so as to be smaller than the outer periphery of the front tube portion 64c of the shaft 64 and larger than the inner periphery of the front tube portion 64c.

The operation will be described with reference to FIG. Reference numeral P in FIG. 15 is a desk surface. FIG. 15 shows a state in which the front surface of the lid 66 fixed to the front end of the protrusion front portion 64 d of the shaft 64 is pushed into the desk surface P. Even when the thin film portion 64f breaks and opens at the base outer peripheral portion of the projection rear portion 64e at the time of opening, the rear end outer peripheral diameter of the projection front portion 64d is smaller than the front end outer peripheral diameter of the projection rear portion 64e, so that the opening area can be increased. The built-in agent in the sealed container passes through the breaking opening 64l, passes through a space formed by the inner periphery of the front tube portion 64c and the outer periphery of the protrusion front portion 64d, and passes from the notch portion 66a of the front lid 66 to the desk surface P. Discharge toward Further, even when the sealed container is opened upward, the front lid 66 is fixed to the front end of the projection front portion 64d, so that the projection portion broken and separated from the thin film portion 64f does not move to the storage portion 64a side of the shaft 64. .
Although the protrusion front part 64d and the protrusion rear part 64e are shown in a two-stage shape, the protrusion part may be provided in a conical shape. However, since the swing when the protrusion is pushed open is increased and the opening operation becomes unstable, it is preferable that the root diameter of the protrusion rear part 64e is widened so that the protrusion can be stably pushed.

16 and 17 show an eighth embodiment. 16 shows an enlarged cross-sectional view of the main part, and FIG. 17 shows a use state diagram of FIG. The difference from the first embodiment to the seventh embodiment is that a convex spherical surface 72t is provided at the front center of the thin film portion 72j of the nozzle 72. On the upper surface of the thin film portion 72j, a connecting rib 72u that connects the convex spherical surface portion 72t and the inner periphery of the front tube portion 72g is provided. Two outer protrusions 72v are provided in the front and rear circumferentially in front of the outer periphery of the front tube portion 72g.
On the inner side of the cap 73, a solid cylindrical projection 73a extending from the front to the vicinity of the convex spherical portion 72t of the nozzle 72 is provided. The front end of the cap 73 is provided with a plurality of through holes 73b penetrating in the front-rear direction. A smooth surface portion 73 c is provided on the front end surface of the cap 73. On the inner periphery of the cap 73, a point-like inner protrusion 73 d is provided at the outer protrusion 72 v of the nozzle 72 and protrudes toward the axial center side positioned in the front-rear direction.
The operation will be described with reference to FIG. FIG. 17 shows a state where the bottle is held in one hand with the airtight container facing upward, and the planar portion 73c of the cap 73 is pushed toward the bottle with the thumb or the like of the held hand. The bottle can be held (operated) with one hand and the thin film portion 72j of the nozzle 72 can be opened and broken through the protrusion 73a of the cap 73. Therefore, the opening operation is simplified. In addition, even if the internal agent is scattered by the opening operation of the sealed container, it remains only on the thumb of the held hand. Therefore, the contamination of the built-in agent does not reach the hands and clothes. When the sealed container is opened, since the connecting rib 72u of the nozzle 72 and the protrusion 73a of the cap 73 are provided, the thin film portion 72j is moved toward the connecting rib 72u on the inner periphery of the front tube portion 72g. Therefore, it can open large. Even when the sealed container is opened, the thin film portion 72j of the nozzle 72 and the protruding portion 73a of the cap 73 are connected to each other, so that they do not move to the bottle side.
The cap 73 can be mounted and fixed at an appropriate position of the nozzle 72 by the inner protrusion 73 d of the cap 73 and the outer protrusion 72 v of the nozzle 72. The assembly to the nozzle 72 that requires the positioning of the cap 73 is performed by locking and positioning both protrusions of both members, so that the working efficiency can be improved. Further, since the inner protrusion 73d on the rear side of the cap 73 gets over the outer protrusion 72v on the front side of the nozzle 72 in the unused state of the sealed container, the cap 73 is not removed even if the sealed container is faced downward.

The front view of a 1st Example. The principal part expanded sectional view of FIG. The principal part side surface enlarged view of FIG. FIG. 3 is a use state diagram of FIG. 2. The principal part expanded sectional view of a 2nd Example. The principal part expanded sectional view of a 3rd Example. FIG. 7 is a top view of FIG. 6. The principal part expanded sectional view of 4th Example. FIG. 9 is a top view of FIG. 8. The principal part expanded sectional view of 5th Example. The principal part expanded sectional view of 6th Example. The front view of a 7th Example. The principal part expanded sectional view of FIG. The enlarged bottom view of the front cover 66. FIG. FIG. 14 is a use state diagram of FIG. 13. The principal part expanded sectional view of an 8th Example. The use condition figure of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bottle 1a Opening part 1b, 64a Storage part 1c Opening end 1d Circumferential part 2, 12, 22, 32, 42, 52, 72 Nozzle 2a Rear cylinder part 2b Disc part 2c, 12c, 22c, 32c, 42c, 52c 72c Middle cylinder part 2d Welding rib 2e Depression part 2f Outer edge part 2g, 12g, 22g, 32g, 42g, 52g, 64c, 72g Lead cylinder part 2h, 12h, 22h, 32h, 42h, 52h, 66a Notch part 2i, 12i, 22i, 32i, 42i, 52i Protruding parts 2j, 12j, 22j, 32j, 42j, 52j, 64f, 72j Thin film part 2k Thick part 2l, 64l, 72l Break opening 12m Recessed part 12n Front inclined part 22o Rib 32p Vertical rib 42q Groove 52r Rear projection 52s Inner vertical rib 72t Convex spherical surface 72u Connection rib 72v Outer projection 3, 63, 73 Cap 73a Projection 73b through hole 73c planar portion 73d within protrusion 64 the shaft 64b the nozzle portion 64d protruding front 64e protruding rear 65 cover 65a tubular portion 66 Sakifuta 66b hole S space P desk surface

Claims (9)

In the front of a bottle having an opening and a storage part, in a break-opening type sealed container in which a substantially cylindrical front closed nozzle is fixed, a protrusion is provided in a state of protruding from the tip of the nozzle, A cylindrical portion having an inner shape larger than the outer shape of the protruding portion is provided behind the protruding portion, a thin thin film portion that connects the protruding portion and the cylindrical portion is provided, and the protruding portion A sealed container, characterized in that a thick part thicker than the thin film part is provided at the base. The hermetically sealed container according to claim 1, wherein a thick portion is formed by curving the corner of the base of the protrusion, and the thick portion is provided over the entire circumference of the base. A circumferential concave portion is provided on the rear surface side of the thin film portion, and the most depressed portion of the concave portion is located in a portion separated from the outer shape of the base of the protrusion, or The sealed container according to claim 2. A plurality of radial ribs that are inclined slightly from the front of the outer periphery of the base of the protrusion toward the rear of the outer periphery of the thin film portion and extend radially are formed on the front surface of the thin portion, and the portion of the radial rib is defined as a thick portion. The sealed container according to claim 1, wherein the sealed container is a sealed container. 5. A plurality of vertical ribs extending forward from the outer periphery of the base of the protruding portion are provided on the outer periphery of the protruding portion, and a portion of the vertical rib is a thick portion. A sealed container according to any one of the above. In the front of a bottle having an opening and a storage part, in a break-opening type sealed container in which a substantially cylindrical front closed nozzle is fixed, a protrusion is provided in a state of protruding from the tip of the nozzle, A cylindrical portion having an inner shape larger than the outer shape of the protruding portion is provided behind the protruding portion, and a thin thin film portion that connects the protruding portion and the cylindrical portion is provided. A sealed container, wherein a circumferential groove is provided at a position away from the outer periphery of the protrusion. In the front of a bottle having an opening and a storage part, in a break-opening type sealed container in which a substantially cylindrical front closed nozzle is fixed, a protrusion is provided in a state of protruding from the tip of the nozzle, A cylindrical portion having an inner shape larger than the outer shape of the protruding portion is provided behind the protruding portion, a thin thin film portion that connects the protruding portion and the cylindrical portion is provided, and a thin film portion in the cylindrical portion is provided. A sealed container characterized in that a rear projection is provided also on the rear side, and the outer circumference of the base in front of the rear projection is larger than the outer circumference of the base behind the projection. A substantially cylindrical nozzle part closed from the front, a shaft having a nozzle part and a storage part integrally formed behind this nozzle part, and a rear end opening, and a breakage in which the rear end of the axis is closed with a lid In the open-type sealed container, a protruding portion is provided in a state of protruding from the tip of the nozzle portion, and a cylindrical portion having an inner shape larger than the outer shape of the protruding portion is provided behind the protruding portion. A sealed container characterized in that a thin thin-film portion for connecting the projection and the cylindrical portion is provided, and the front side of the projection is formed narrower than the rear side. A substantially cylindrical cap that penetrates through a front side of a bottle having an opening and a storage part, and has a substantially cylindrical front closed with a thin thin film portion, and can move rearward in front of the nozzle. In the tear-open type sealed container covered with the cap, the front end of the cap is a planar portion, an inner protrusion is provided on the inner periphery of the cap, and an outer protrusion is provided on the outer periphery of the nozzle, The inner protrusion of the cap and the outer protrusion of the nozzle are locked, and further, a columnar protrusion extending from the front of the cap to the vicinity of the thin film portion of the nozzle is provided inside the cap. A sealed container characterized.

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