JP3113429B2 - Composite container for low viscosity liquid - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite container for a low-viscosity liquid for containing a low-viscosity liquid such as a solvent-evaporating adhesive, a chemical, a food, and an ink.

[0002]

2. Description of the Related Art Liquid adhesives, which are representative of low-viscosity liquids, include those of different types such as a solvent-evaporating type and a moisture-curing type. In addition, a moisture-curable adhesive cannot use a moisture-permeable plastic tube. Therefore, metal tubes such as aluminum tubes and lead tubes are used for these types of adhesives.

[0003] However, since the metal tube has no restoring force, so-called liquid dripping occurs after discharging the adhesive as a content. This phenomenon becomes more remarkable when the content has a low viscosity, such as an instant adhesive. Further, since the metal tube has no restoring force, a dent is left as the tube is used, which makes it difficult to use, and is deformed in appearance and deteriorates in appearance. In addition, the metal tube cannot be set up and must be capped one by one to prevent leakage of the contents when laid down during use,
It feels complicated. In addition, when the content is small, the metal tube is small and difficult to handle.

In order to solve these problems, for example, as disclosed in Japanese Utility Model Publication No. Sho 58-8682 and Japanese Utility Model Publication No. Sho 62-44914, a cylindrical elastic tube or a tubular plastic is provided around the outer circumference of a metal tube. Fitting has been proposed. However, in this method, the metal tube is restored by the elastic restoring force of the elastic tube or the tubular plastic, thereby sucking the discharged matter accumulated at the outlet. The suction power to suck things is weak. In particular, there is a problem that the restoring force becomes weaker as the device is used, and the object cannot be sufficiently achieved.

As a result of intensive studies, the present inventors have developed an inner container having a main body for accommodating contents and an opening for discharging the contents from the main body, as an inner container, The inventor of the present invention has provided an outer container that covers the body of the container, and a pressure medium interposed between the inner container and the outer container (Japanese Patent Application No. 4-198963). According to this prior invention, the restoring force of the mantle container is reliably transmitted to the inner container by the pressure medium, and the restoring property of the inner container is sufficiently enhanced,
Liquid dripping can be reliably prevented, and the contents can be discharged to the end.

[0006]

In the composite container for a low-viscosity liquid according to the prior invention, a nozzle is screwed into the mouth of the inner container, and a lid for closing the discharge port of the nozzle is screwed onto the nozzle. In the case of a configuration in which the nozzles are screwed together, the lid is strongly screwed, the lid is adhered to the nozzle by the discharged material that has flowed down to the outer peripheral surface of the nozzle, or the discharged material that has flowed down to the outer peripheral surface of the nozzle is hardened and hardened. If a bulge is formed on the outer peripheral surface, the nozzle may be screwed together with the lid when removing the lid, and the nozzle may be twisted from the mouth of the inner container.

The present invention has been made in view of the above circumstances, and prevents the cover from being strongly screwed to a certain value or more, and prevents the nozzle from rotating when the cover is unscrewed. It is an object of the present invention to provide a composite container for a low-viscosity liquid capable of preventing the occurrence of a low viscosity liquid.

[0008]

SUMMARY OF THE INVENTION The present invention provides an inner container having a main body for accommodating the contents and an opening for discharging the contents from the main body and screwing the nozzle to a nozzle, and an outer container for covering the main body of the inner container. In the composite container for a low-viscosity liquid having a nozzle screwed to the mouth, and a lid closing the discharge port of the nozzle, the base end of the mouth is provided in the outer container in order to achieve the above object. A boss having ratchet teeth formed on the outer peripheral surface thereof is provided, and ratchet inner teeth corresponding to the ratchet teeth are provided on the nozzle.

[0009]

When the nozzle is screwed into the mouth of the inner container and the cover is screwed into the nozzle and rotated in the screwing direction, a force acts to further rotate the nozzle in the screwing direction. When the tightening force exceeds a certain value, the inner ratchet teeth slide with respect to the ratchet teeth, causing the nozzle to idle with respect to the boss, thereby preventing the lid from being tightened with a force greater than a certain value. After that, when the lid is to be unscrewed, the ratchet teeth mesh with the ratchet teeth so that the rotation of the nozzle in the unscrewed direction is restrained, and only the lid is screwed in the unscrewed direction.

The present invention is preferably used for a composite container provided with a pressure medium interposed between an inner container and an outer container, but is not limited to the above configuration. Therefore, the present invention includes the following modifications in which the present invention is applied to one main container by integrally molding the inner container and the outer container or omitting one of them.

That is, a main body container having a main body for accommodating the contents and a mouth for discharging the contents from the main body and screwing to the nozzle, a nozzle screwed to the mouth, and a nozzle screwed to the nozzle. In a composite container for a low-viscosity liquid having a lid closing a discharge port of the nozzle, a boss having ratchet teeth formed on an outer peripheral surface is provided at a base end of an opening of a main body container, and the ratchet is provided on the nozzle. It is characterized in that ratchet internal teeth corresponding to the teeth are provided.

In the following description of the embodiment, a composite container having an inner container and an outer container will be described, but this also applies to the above-mentioned modification.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below based on a specific embodiment shown in the accompanying drawings. As shown in the partially cutaway front view of FIG. 1, a composite container for a low-viscosity liquid according to one embodiment of the present invention comprises an inner container 1, an outer container 2, preferably a pressure medium 3, a nozzle 4, a cap 5, And

As shown in the front view of FIG. 2, the inner container 1 has a main body 6 for accommodating the contents and an opening 7 for discharging the contents from the main body 6, and the inner container 1 is incompatible with the contents. It is formed of an active, non-penetrating or impermeable material. For example, as a material constituting the inner container 1 for containing an instant adhesive such as α-cyanoacrylate, for example, a metal such as aluminum or lead suitable for storing moisture-curable or solvent-evaporated contents, or a metal such as these. For example, a composite material obtained by laminating a resin and a synthetic resin is used.

A screw 8 for screwing the nozzle 4 is formed on the outer peripheral surface of the tip of the mouth 7 of the inner container 1. The mouth 9 formed at the tip of the mouth 7 has a nozzle 9 before use. 4 is closed by the thin film 10 ruptured by the rupture portion 25. Also, the bottom is closed by folding back after filling the contents. The shape of the mantle container 2 is not particularly limited as long as it can preferably hold the pressure medium 3 around the inner container 1, and has a cross-sectional shape such as a polygon such as a cylinder, an ellipse, a triangle, and a rectangle. It can be formed into an arbitrary shape such as a cylindrical shape, a box shape, a jujube shape, a gourd shape, etc. of equal or different diameters.

In this embodiment, as shown in the side view of FIG. 3, the partially cut front view of FIG. 4, and the plan view of FIG. Is formed in a shape in which the top is a gentle tapered cylindrical shape, the front and rear surfaces are both flatly cut off from a portion near the upper end, and the bottom becomes an elliptical cylinder. In this embodiment, the bottom end surface of the mantle container 2 is formed flat so that the composite container can be placed upright.

The outer container 2 may be formed integrally, but in this embodiment, as shown in FIG. 1, it is divided into a main member 11 and a bottom member 12, and the main member 11 is pushed from the outside. It is formed of a synthetic resin that is easily elastically deformed by pressure. Typical examples of this type of synthetic resin include polyethylene, polypropylene, polyester, polyamide, polyvinyl chloride, and polybutadiene. Among them, it is recommended to use polybutadiene having particularly excellent restoring force.

As shown in FIG. 4, the main member 11 includes a peripheral wall 13 and
Receiving wall 14 and boss 15 with ratchet teeth formed on the outer peripheral surface
And a positioning projection 16, the peripheral wall 13 extends around the entire body 6 of the inner container 1 around the base end of the mouth 7, and the peripheral wall 13 extends so as to cover the boss 15. The protective cover 100 is formed to enhance the external appearance. The receiving wall 14 is formed inside the upper portion of the peripheral wall 13, and a boss 15 is formed continuously above the inner peripheral portion of the receiving wall 14. Further, as shown in FIG. 5, ratchet teeth 17 are formed on the outer peripheral surface of the boss 15.

The positioning projections 16 project inward at two opposing positions on the long axis of the inner peripheral surface of the bottom of the main member 11. The shape of the positioning projections 16 is not particularly limited, but here, as shown in FIG. 4, the amount of projection gradually decreases from the bottom of the main member 11 to the top, and the inner periphery of the bottom of the main member 11 at the upper end. It is formed in a shape that continues smoothly to the surface.

As shown in FIG. 1, in this embodiment, the inner container 1 is inserted from the mouth 7 side from the bottom side of the outer container 2, and is inserted into an insertion hole 18 penetrating through the receiving wall 14 and the boss 15. Mouth 7
After that, the pressure medium 3 is filled between the inner container 1 and the outer container 2, and the bottom member 12 is fitted into the bottom of the main member 11. The pressure medium 3 may be liquid as long as it can transmit the pressing force applied to the outer container 2 to the inner container 1 and can be deformed in accordance with the deformation of the inner container 1 and the outer container 2. Or an elastic body, or a viscoelastic body intermediate between a liquid and an elastic body.

In the present invention, in order to increase the efficiency of pressure transmission, it is advantageous to use, as the pressure medium 3, a material having adhesiveness or adhesion to one or both of the inner container 1 and the outer container 2. It is. Examples of the liquid constituting the pressure medium 3 include low-viscosity liquids such as water and oil, polyethylene glycol, silicone oil, paraffin, liquid rubber (liquid BR, liquid SBR, liquid NBR, etc.), liquid polybutadiene, liquid polychloroprene, High viscosity liquids such as liquid polysulfide, liquid polyisoprene, and liquid butyl rubber are examples.

As the viscoelastic body, a so-called gel-like substance in which a colloid is solidified is typical, and examples thereof include gelatin, low molecular weight polyethylene and glue. Typical examples of the elastic body include a foam, a sealing agent, a rubber-like elastic body, an elastic synthetic resin, and an elastic adhesive. Examples of this type of foam include urethane foam, foamed polystyrene, foamed polyethylene, foamed polypropylene, and the like.

Examples of the sealing agent include one-pack silicone and one-pack urethane. Further, the rubber-like elastic body includes natural rubber and synthetic rubber, and BR, SBR, NBR, IR,
In addition to EPDM and the like, urethane rubber, silicone rubber, acrylic rubber, ethylene acrylic rubber, polyether rubber, propylene oxide rubber, and various elastomers are included.

The various elastomers include styrene thermoplastic elastomer, olefin thermoplastic elastomer, urethane thermoplastic elastomer, polyester thermoplastic elastomer, polyamide thermoplastic elastomer, polybutadiene thermoplastic elastomer, and PVC thermoplastic elastomer. Examples thereof include a plastic elastomer and a fluorine-based thermoplastic elastomer.

Examples of the synthetic resin having elasticity include polyethylene, polypropylene, polyvinyl chloride, polystyrene, polyvinylidene chloride, fluororesin, polyamide such as polymethyl methacrylate, nylon, polyester, polyester, and the like.
Polycarbonate, polyphenylene oxide, polyurethane, thermoplastic resins such as polyacetal,
Examples of the adhesive having elasticity include an ethylene-vinyl acetate (EVA) hot melt adhesive, a thermoplastic rubber hot melt adhesive, a polyamide hot melt adhesive, a polyester hot melt adhesive, and a thermosetting hot melt. Hot melt adhesives such as adhesives are examples.

In this embodiment, a rubber-like elastic material is employed from these materials. This is because the rubber-like elastic body is prepared by injecting a one-pack or two-pack liquid composition as a precursor between the inner container 1 and the outer container 2, and opening the bottom opening of the main member 11 with the bottom member 12. After the blockage, the pressure medium 3 made of a rubber-like elastic body can be filled by a hardening treatment without a gap between the inner container 1 and the outer container 2, thereby simplifying the manufacturing process. This is because the pressure medium 3 is advantageously brought into close contact with the inner container 1 and the outer container 2 so that the pressure transmission capability can be increased.

The material of the bottom member 12 is not particularly limited.
It is preferable to use a material having adhesiveness or tackiness to the pressure medium 3, for example, polystyrene, olefin-based resin, urethane resin, polyester, polyamide,
Thermosetting resins such as polybutadiene, polyvinyl chloride, and fluorine resin are used. As shown in the plan view of FIG. 6, the front view of FIG. 7, and the side view of FIG.
It has an elliptical bottom wall 12-1 and a pair of spacers 19 raised from the bottom wall 12-1 to a line symmetric position with respect to the major axis of the bottom wall 12-1. The outer envelope surface 21 of each spacer 19 is inscribed in the inner peripheral surface of the main member 11, and a positioning groove 22 is formed between the spacers 19 so that the bottom of the inner container 1 and the positioning protrusion 16 are fitted.

The positioning groove 22 is formed in a V-shape that is steeply inclined at the base end side that is slightly inclined at the distal end (upper end) side. When the bottom member 12 is fitted into the main member 11, the positioning projection 16 is formed by the positioning groove 22.
Of the bottom member 12 so that the long axis direction of the bottom member 12 coincides with the long axis direction of the main member 11.
Is positioned, while the bottom of the inner container 1 inserted into the main member 11 fits into the positioning groove 22, and the positioning protrusion is formed.
Positioned between 16. Thus, the folded portion (200 in FIG. 1) of the inner container filled with the contents is securely fixed to the center portion of the outer container, and serves to enhance the pressure transmission capability.

The surface of the spacer 19 may be formed as a smooth surface having no irregularities.
In order to increase the adhesion area or the adhesion area with the substrate, it is formed on an uneven surface having a large number of grooves 20. In this embodiment, since the inner side surface of the positioning projection 16 is formed so as to smoothly continue to the inner peripheral surface of the peripheral wall 13 at the upper end, the folded portion at the bottom of the inner container 1 is formed in the longitudinal direction of the main member 11. When positioned between the positioning projections 16 while being guided and rotated by the spacer 19 from a different direction, the folded portion at the bottom of the inner container 1 can smoothly ride on the positioning projections 16 with little resistance. Assembly workability can be improved.

Further, in this embodiment, the upper portion of the outer envelope surface 21 of each spacer 19 is inclined inward to facilitate the fitting of the bottom member 12 to the main member 11, so that the outer container 2 is assembled. Workability is further improved. FIG.
As shown in the half sectional front view and the bottom view of FIG. 10, the nozzle 4 includes a nozzle body 23, a connecting portion 24, and a breach portion 25. The connecting portion 24 has a large diameter on the lower side. A female screw 27 corresponding to the screw 8 formed in the mouth 7 of the inner container 1 is formed on the inner peripheral surface of the small-diameter portion 26 and has a large-diameter portion.
Ratchet inner teeth 29 corresponding to the ratchet teeth 17 of the mantle container 2 are formed on the inner peripheral surface of 28.

The nozzle body 23 protrudes upward from the upper end wall 30 of the small diameter portion 26, and its peripheral surface is formed as a tapered gentle taper peripheral surface. Further, the opening 25 protrudes downward from the upper end wall 30 of the small diameter portion 26, and its peripheral surface is formed as a tapered peripheral surface. A discharge hole 31 having a shape of a right circular hole extends from the lower end of the opening 25 to the upper end of the nozzle body 23.

In the peripheral wall of the large-diameter portion 28, a slit 32 cut from the outer peripheral surface to the inner peripheral surface of the large-diameter portion 28 and cut along the entire height of the large-diameter portion 28 is provided in a circumferential direction. It is formed at four places at intervals. Small diameter section 26
A screw for screwing the cap 5 on the outer peripheral surface of
33 is formed, and an engagement piece 47 that engages with a thread break groove 46 of a screw 37 of the cap 5 described later is bulged between any of the two screws 33 and the large diameter portion 28 near the lower end. The stop piece 48 for preventing the cap 5 from being excessively screwed into the nozzle 4 is swelled slightly away from the end of the screw 33. At the outer periphery of the upper end wall 30, there is a liquid embankment for preventing the discharged material flowing down along the outer peripheral surface of the nozzle body 23 from being transmitted to the outer peripheral surface of the small diameter portion 26.
34 protrudes upward over the entire circumference.

As shown in FIG. 11, the cap 5 has a hemispherical head 35 and an upper tapered skirt portion 36 which is continuous with the periphery of the head portion. A screw 37 corresponding to the screw 33 of the nozzle 4 is provided on the lower inner peripheral surface of the portion 36.
Is formed. Near each lower end of the two threads 37, a thread cut-off groove 46 for receiving the engagement piece 47 of the nozzle 4 is provided, and the thread 5 is engaged with the engagement piece 47 so that the cap 5 can be easily screwed. Do not disassemble, sealing part of cap 5
The discharged material is prevented from flowing down from between the opening 38 and the opening of the discharge path 31. A sealing portion 38 is formed on the lower surface of the hemispherical head 35 to abut the upper end of the nozzle 4 in the skirt portion 36 to seal the discharge path 31 when the cap 5 is sufficiently screwed to the nozzle 4. You.

The cap 5 between the sealing portion 38 and the screw 37
Liquid dripping prevention folds 39 are formed on the inner peripheral surface of the upper surface in multiple stages up and down to above the sealing portion 38. As shown in the enlarged sectional view of FIG. 12, the cross-sectional shape of each pleat 39 is formed as a right triangle or an acute triangle whose lower surface is inclined downward and inward, and adheres to the inner peripheral surface of the cap 5 and tends to flow down. The ejected material is each fold
Drops are stored on the inner periphery of 39.

A restricting portion 40 is formed on the inner peripheral surface of the cap 5 to be received by the outer peripheral surface of the liquid dam 34 of the nozzle 4 when the cap 5 is screwed to the nozzle 4 to a predetermined depth. . When the cap 5 is screwed to the nozzle 4 and the cap 4 is screwed to the nozzle 4 to a predetermined depth, the restricting portion 40
Is received by the outer peripheral surface of the liquid bank 34 of the nozzle 4, and the screwing of the cap 4 into the nozzle 4 is restricted. When the female screw 27 of the nozzle 4 is screwed into the screw 8 formed in the mouth 7 of the inner container 1 while the cap 5 is screwed to the nozzle 4 to a predetermined depth in this manner, the nozzle 4 The opening 25 pierces the opening 9 of the inner container 1 and breaks the thin film 10, the inside of the inner container 1 communicates with the discharge path 31 of the nozzle 4, and the opening 25 of the nozzle 4 connects to the opening of the inner container 1. The screwing of the nozzle 4 into the inner container 1 is restricted by being received by the portion 7, and the space between the nozzle 4 and the mouth 7 of the inner container 1 is sealed.

When the cap 5 is further screwed, the ratchet inner teeth 29 hit the ratchet teeth 17 and are pushed outward. If the large-diameter portion 28 of the nozzle 4 is continuous in the circumferential direction, the ratchet internal teeth 29 must be moved in the circumferential direction unless the large-diameter portion 28 is extended in the circumferential direction against the elasticity of the large-diameter portion 28 of the nozzle 4. Although it cannot be extruded, in this embodiment,
Since the slit 32 is cut from the outer peripheral surface to the inner peripheral surface of the large diameter portion 28 and cut over the entire height of the large diameter portion 28, the large diameter portion 28 is easily enlarged in diameter, and the ratchet internal teeth 29 are formed. Can be extruded in the outer peripheral direction. Accordingly, by screwing the cap 5 with a relatively weak force of a certain level or more, the ratchet inner teeth 29 are pushed out in the outer circumferential direction and get over the ratchet teeth 17, and the nozzle 4 and the cap 5 idle with respect to the mantle container 2. 5 is prevented from being tightened into the nozzle 4 by a certain force or more.

Thereafter, when the cap 5 is rotated in the screwing direction, the inner ratchet teeth 29 are locked to the ratchet teeth 17, so that the nozzle 4 can be rotated in the screwing direction with respect to the outer container 2. And the nozzle 4 can be reliably prevented from being twisted from the inner container 1 by being rotated along with the cap 5,
Only the cap 5 can be reliably removed. When the peripheral wall 13 of the mantle container 2 is pinched and pressed with the finger with the cap 5 removed,
The peripheral wall 13 of the outer container 2 is recessed, and the pressing force is transmitted to the main body 6 of the inner container 1 via the pressure medium 3, the inner container 1 is recessed, and the contents are discharged to the outside via the discharge path 31 of the nozzle 4. Is done.

A part of the discharged matter adheres to the tip of the nozzle body 23. However, when the force pressing the mantle container 2 is removed, the mantle container 2 and the pressure medium 3 are elastically restored, and accordingly, the inner container The shape of 1 is restored, and most of the discharged matter adhering to the tip of the nozzle body 23 is sucked back into the discharge path 31 or the inside of the inner container 1, thereby making it difficult for liquid dripping to occur.

The discharged matter adhering to the outer peripheral surface of the tip of the nozzle body 23 for some reason is discharged from the discharge passage 31 or the inner container 1.
It is unlikely to be sucked back inside and may flow down to the connecting portion 24 along the outer peripheral surface of the nozzle body 23. However, the connection
The discharged material that has flowed down to 24 is the base end of the nozzle body 23 and
Pooled in the annular space formed between
It does not flow down to the outer peripheral surface of 23. This reliably prevents the discharge material from adhering to the screw 33 of the nozzle 4 and hindering the screwing of the cap 5 into the nozzle 4 or the nozzle 4 and the cap 5 screwed to the nozzle 4 from being bonded. Operability of the screwdriver of the cap 5 is improved.

When the cap 5 is screwed after use, the tip of the nozzle body 23 comes into contact with the inner peripheral surface of the cap 5,
Although a small amount of discharge may adhere to the inner peripheral surface of the cap 5 from the tip of the nozzle body 23, the discharge adheres to the inner peripheral surface of the cap 5 and tends to flow down along the inner peripheral surface of the cap 5. The object is caught by the fold 39
It does not run down to 37. Therefore, it is possible to reliably prevent the ejected material from adhering to the screw 37 of the cap 5 and solidifying to prevent the cap 5 from being screwed, or from adhering the nozzle 4 and the cap 5 screwed thereto. Thus, the operability of screwing the cap 5 can be improved.

[0041]

As described above, according to the composite container for a low-viscosity liquid of the present invention, the boss in which the base end of the mouth is fitted into the outer container and the ratchet teeth are formed on the outer peripheral surface. On the other hand, by providing ratchet inner teeth corresponding to the ratchet teeth on the nozzle screwed to the mouth of the inner container, the nozzle is rotated in the screwing direction and screwed to the mouth of the inner container, Prevents the lid screwed into the nozzle from being screwed into the nozzle with a certain force or more, and can reliably prevent the cap screw and the corresponding nozzle screw from being damaged, and unscrew the lid. In this case, it is possible to reliably prevent the nozzle from rotating along with the lid and being twisted from the inner container, thereby improving the usability.

In the present invention, in particular, when a slit is formed in a portion of the nozzle where the ratchet internal teeth are formed in such a manner as to divide the portion in the circumferential direction, the ratchet teeth are formed on the ratchet internal teeth with relatively weak screwing force. It is possible to get over and idle, and it is possible to more reliably prevent the cap screw and the corresponding nozzle screw from being damaged due to excessive screwing of the cap.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view of the present invention.

FIG. 2 is a front view of the inner container of the present invention.

FIG. 3 is a side view of a main member of the mantle container of the present invention.

FIG. 4 is a partially cutaway front view of a main member of the mantle container of the present invention.

FIG. 5 is a plan view of a main member of the mantle container of the present invention.

FIG. 6 is a plan view of a bottom member of the mantle container of the present invention.

FIG. 7 is a front view of a bottom member of the mantle container of the present invention.

FIG. 8 is a side view of a bottom member of the mantle container of the present invention.

FIG. 9 is a partially cutaway front view of the nozzle of the present invention.

FIG. 10 is a bottom view of the nozzle of the present invention.

FIG. 11 is a partially cutaway front view of the cap of the present invention.

FIG. 12 is an enlarged sectional view of a main part of the cap of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Inner container 2 ... Outer container 3 ... Pressure medium 4 ... Nozzle 5 ... Cap 6 ... Body 7 ... Mouth 15 ... Boss 17 ... Ratchet teeth 29 ... Ratchet inner teeth 31 ... Discharge path

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Akio Nimura 4-59-9 Higashi-Gotanda, Shinagawa-ku, Tokyo (72) Inventor Masayuki Fukai 4-59-9 Higashi-Gotanda, Shinagawa-ku, Tokyo Cemedine Co., Ltd. (72) Inventor Keiji Shimizu 4-2-11, Nishi Mikuni, Yodogawa-ku, Osaka City Inside Taoka Chemical Industry Co., Ltd. (72) Harumi Moriuchi 4-2-11, Nishi Mikuni, Yodogawa-ku, Osaka City Taoka Chemical Industry Co., Ltd. (72) Inventor Chiaki Hata 4-2-1-11 Nishi Mikuni, Yodogawa-ku, Osaka Taoka Chemical Industry Co., Ltd. (56) References JP-A 4-56650 (JP, U) JP-A 1-110862 (JP, U) JP-A 2-114487 (JP, U) JP-A 42-2686 (JP, Y1) (58) Fields investigated (Int. Cl. ⁷ , DB name) B65D 35/44

Claims (6)

(57) [Claims] 1. A main body container having a main body for accommodating contents and a mouth portion for discharging the contents from the main body and being screwed to a nozzle, a nozzle screwed to the mouth portion, and a screwed to the nozzle. In the composite container for a low-viscosity liquid having a lid that closes a discharge port of the nozzle, a boss having ratchet teeth formed on an outer peripheral surface is provided at a base end portion of a mouth portion of the main body container,
A composite container for a low-viscosity liquid, wherein said nozzle is provided with ratchet internal teeth corresponding to said ratchet teeth. 2. The low-viscosity liquid composite container according to claim 1, wherein a slit for dividing the portion in the circumferential direction is formed in a portion of the nozzle where the ratchet internal teeth are formed. 3. A protective cover is provided on an outer periphery of a ratchet tooth formed on a main body container.
A composite container for a low-viscosity liquid according to any one of the above. 4. An inner container having a main body for accommodating the contents and an opening for discharging the contents from the main body and screwed to the nozzle, an outer container for covering the main body of the inner container, and screwed to the opening. Nozzle, and a composite container for a low-viscosity liquid having a lid closing a discharge port of the nozzle, a boss having a base end portion of the mouth portion inserted into the outer container and having ratchet teeth formed on the outer peripheral surface. On the other hand, a composite container for a low-viscosity liquid, wherein the nozzle is provided with ratchet internal teeth corresponding to the ratchet teeth. 5. The composite container for a low-viscosity liquid according to claim 4, wherein a protective cover is provided on the outer periphery of the ratchet teeth formed on the outer container. 6. The composite container for a low-viscosity liquid according to claim 4, wherein a pressure medium is interposed between the inner container and the mantle container.