HK1166047B - Container with unsealing means - Google Patents

Abstract

The object is to provide a container equipped with unsealing means being capable of forming an unsealing hole easily and nicely without abnormally deforming or damaging circumferential portions of a sealing film of a container body, wherein the container comprises a container body, a cap and an unsealing/pouring-out port component, in which the container body comprises a cylindrical head portion and a body portion, wherein the cylindrical head portion has an unsealable portion at an upper end, a locking portion being capable of locking theunsealing/pouring-out port component into a retained condition, and a male screw upon an outer circumferential face, the cap comprises a holder being capable of holding the unsealing/pouring-out port component and a female screw being capable of screwing with the male screw, so as to be installed detachably upon the head portion of the container body through the screwing, and the unsealing/pouring-out port component comprises an unsealing means for unsealing the unsealable portion and forming an unsealing hole, an engaging portion for engaging with the locking portion in order to set the unsealing/pouring-out port component detained upon the head portion of the container body, and a pouring out port being capable of pouring out the content of the container body while the unsealing/pouring-out port component being locked in a detained condition by the head portion of the container body, and while being held upon the holder of the cap, the unsealing/pouring-out port component moves towards the body portion side with the cap along with the rotation of the cap during screwing, and the unsealable portion upon the upper end of the head portion is unsealedto form an unsealing hole by the unsealing means, the engaging portion is then engaged with the locking portion to facilitate a detained condition by the head portion of the container body.

Description

Container with unsealing unit

Technical Field

The present invention relates to a container with an unsealing means. More particularly, the present invention relates to a container with an unsealing/spout member that unseals a sealing film of a container body filled with contents to form a spout for the contents.

Background

Conventionally, there have been many containers in which a spout is kept in a sealed state in an unused state, and a sealing film provided in the spout is unsealed and used at the time of starting use. Further, a lid structure with an improper opening prevention mechanism (opening prevention member) is also known, which prevents opening from being inadvertently performed in an unused state.

Patent document 1 (japanese patent No. 3024089) previously proposed by the present applicant includes the following descriptions: in a bottle container in which a middle plug having a sealing film (seal) formed at a lower end of an outer peripheral wall is sealed and fixed to a head of a container body filled with contents, and an outer cap having a guide tube for unsealing the sealing film is formed on an upper cap, the outer cap is lowered by cutting the unsealing member from a lower end of an outer peripheral portion of the middle plug and pressing the outer cap from above, and the sealing film is unsealed by the guide tube formed on the outer cap, and the outer cap is fixed to the container head. There are many advantages in this prior art: the outer cap does not need to be removed during the unsealing operation, there is no fear of contamination with bacteria or dirt on fingers, and the container can maintain the sealing property after the use. However, there are the following problems: the mark of the cut-off preventing member is left, which is not good in appearance, and the external cap needs to be pressed with a relatively large force when opening.

Patent document 2 (japanese patent No. 4045277) previously proposed by the present applicant also includes the following descriptions: in a bottle container of a type in which an opening prevention member is provided separately from a cap and the bottle container is used after the opening prevention member is removed and sealed, after the content is filled from the head portion of a container body, the cap is screwed again to a shoulder part which is attached to the head portion of the container body in a sealed state and has a closed spout at the tip end portion, and a conical projection attached to the cap is pushed into the spout to open the cap. This conventional technique has many advantages, and because unsealing is performed by rotation of the lid at the time of screwing, unsealing can be easily performed with a relatively small force, but has the following problems: the opening hole is limited to a small hole, and it is difficult to apply the opening hole to a container requiring a large opening hole ratio.

Patent document 3 (japanese patent No. 3978224) previously proposed by the present applicant also includes the following descriptions: in a bottle container of a type in which an inner cap provided with a sealing film is attached to a neck portion of a container body filled with contents in a sealed state with a tamper-evident member interposed between the inner cap and the cap body, and the bottle container is started to be used after the tamper-evident member is removed and unsealed, when the cap body is screwed to the inner cap again, a cutting edge attached to the cap body is rotated by a specific angle, thereby leaving a cut residual portion and unsealing the sealing film. In this conventional technique, there are many advantages that the unsealing is performed by rotating the small-diameter cutting edge by screwing rotation of the large-diameter cap, and therefore, even if the large-diameter cap is rotated by a relatively small force, a large rotational force and a large pressing force are applied to the small-diameter cutting edge, and therefore, it is possible to form an unsealing hole or the like which is relatively large and in which formation of burrs is small at the edge of the unsealed hole other than the cut surplus portion. However, the following problems are recognized: when this technique is applied to a container body made of a material having relatively high flexibility or flexibility, such as a squeeze tube container, or a container body having a relatively small opening hole in which the rotational force of a large-diameter cap is greatly increased, not only a relatively large pressing force but also a large rotational force acts on the periphery of the sealing film, and therefore, the peripheral portion of the sealing film is abnormally deformed or damaged.

Patent document 1: japanese patent No. 3024089

Patent document 2: japanese patent No. 4045277

Patent document 3: japanese patent No. 3978224

Disclosure of Invention

The present invention has been made to solve the above-described problems of the prior art, and an object of the present invention is to provide a container with an unsealing means, which can easily and satisfactorily form an unsealing hole without abnormal deformation or damage of the peripheral portion of a sealing film, regardless of whether the container is made of a material having relatively high flexibility such as a squeeze tube container or a container having a relatively small unsealing hole.

The present inventors have intensively studied and discussed in order to solve the above problems, and as a result, have found that the above problems can be solved by providing a container with at least (a) a container main body, (b) a lid, and (c) an unsealing/pouring-out member, which are described below.

(a) A container body provided with: a cylindrical head having an openable portion at an upper end portion thereof, a locking portion for locking the unsealing/spout member in a release-preventing state, and an external screw at an outer peripheral surface thereof; and a body part.

(b) And a cap which is provided with a holding portion capable of holding the unsealing and spout member and an internal screw capable of being screwed with the external screw, and which is detachably attached to the head portion of the container body by the screwing.

(c) An unsealing/pouring port member comprising: an unsealing unit that unseals the openable portion to form an open hole; an engaging portion that engages with the engaging portion to bring the unsealing/spout member into a state of coming off from the head portion of the container body; and a spout which is capable of pouring out the contents of the container body when the unsealing/spout member is locked in a coming-off preventing state at the head of the container body, and which is locked in a coming-off preventing state at the head of the container body when the unsealing member is moved to the body side together with the cap along with the rotation of the cap during screwing and the unsealable portion at the upper end of the head is unsealed by the unsealing means to form an unsealable hole.

That is, the features of the present invention are as follows.

(1) A container comprising a container body, a lid and an unsealing/pouring-port member,

the container body is provided with: a cylindrical head having an openable portion at an upper end portion thereof, a locking portion for locking the unsealing/spout member in a release-preventing state, and an external screw at an outer peripheral surface thereof; and a body part, wherein the body part is provided with a plurality of grooves,

the cap includes a holding portion capable of rotatably holding the unsealing/spout member and an internal screw threadably engaged with the external screw, and is detachably attached to the head of the container body by the threaded engagement,

the unsealing/spout member includes: an unsealing unit that unseals the openable portion to form an open hole; an engaging portion that engages with the engaging portion to bring the unsealing/spout member into a state of coming off from the head portion of the container body; and a spout which is capable of pouring out the contents of the container body when the unsealing/spout member is locked in a coming-off preventing state at the head of the container body, and which is locked in a coming-off preventing state at the head of the container body when the unsealing member is moved to the body side together with the cap along with the rotation of the cap during screwing and the unsealable portion at the upper end of the head is unsealed by the unsealing means to form an unsealable hole.

(2) The container according to the above (1), wherein the unsealing unit provided to the unsealing and spout member is moved to the body side in accordance with the formation of the unsealing hole by a pushing movement without rotation.

(3) The container according to the above (1) or (2), further comprising a tamper-evident member that prevents the unsealing means from coming into contact with the unsealable portion in an unused state.

(4) The container according to the above (3), wherein the opening prevention member includes: an opening through which the cylindrical head portion can pass; and a cylindrical portion having an axial length as a spacer for preventing the unsealing means from contacting the unsealable portion.

(5) The container according to the above (4), wherein the opening prevention member further includes a fitting piece fitted to an inner peripheral surface of an outer cylinder constituting the lid, and an outer shape of the cylindrical portion of the opening prevention member is formed to be approximately equal to an outer shape of the lower portion of the lid.

(6) The container according to the above (4) or (5), wherein the container body is provided with a rotation limit restricting portion that restricts a rotation limit of the cap or the unsealing prevention member in the screw-fitting direction.

(7) The container according to item (6) above, wherein the rotation limit restricting portion is formed on the base end portion of the head portion and is a rotation limit restricting projection having a restricting surface approximately perpendicular to a tangent line of the outer periphery of the base end portion, the cap and the tamper-proof member have a positioning projection which can be opposed to the restricting surface, and the base end portion has a spanning projection which engages with a surface of the positioning projection opposite to the opposed portion when the positioning projection is opposed to the restricting surface and which can be passed over by the positioning projection.

(8) The container according to any one of the above (1) to (7), wherein the unsealing member is a sealing film, and the unsealing means includes a cutting blade formed at a lower portion of a cylindrical member constituting the unsealing/spout member.

(9) The container according to the above (8), wherein the cutting edge is press-cut in a range of 240 to 340 degrees around the sealing film, and the lower portion of the cylindrical member is provided with a flat portion in which the cutting edge is not formed in a range of 20 to 120 degrees, so that the press-cut sealing film is suspended from a joint portion left after cutting.

(10) The vessel according to the above (8) or (9), wherein the cutting edge is constituted by a plurality of chevron cutting edge portions in series.

(11) The container according to any one of the above (8) to (10), wherein 1 or 2 or more pressing ribs extending in the axial direction are formed on an inner peripheral surface of the cutting edge formed at a lower portion of the cylindrical member.

(12) The container according to any one of the above (1) to (11), wherein a rotation stop portion for preventing the unsealing unit from rotating relatively after contacting the unsealing member is formed at the unsealing spout member and the head portion.

(13) The container according to any one of the above (1) to (12), wherein the outer contours of the lid and the body are elliptical shapes having substantially the same cross section in the direction perpendicular to the axis.

The present invention has the above-described features, and therefore has the following significant effects (a) to (H).

(A) Since the openable portion is opened by the rotation of the lid at the time of screwing to form the opening hole, a relatively large press-cutting pressure can be applied to the unsealing means such as the cutting blade with a relatively small lid rotation force.

(B) Although the opening and closing hole is formed by the rotation of the cap at the time of screwing, since the unsealing/spout member including the unsealing means is rotatably held on the cap, the unsealing/spout member does not exert a forcible rotational force even if the cap is screwed and rotated. Further, since the head portion of the container body on which the unsealable portion is formed is prevented from rotating or at least does not rotate positively, a relatively large pressing force from the unsealing means such as a cutting blade is applied to the peripheral portion of the unsealable portion, but at least a large rotational force is not applied thereto. Therefore, even in a container made of a material having relatively high flexibility or relatively low strength, such as a squeeze container, and even in a container having a relatively small opening hole, the opening hole can be easily and satisfactorily formed without abnormal deformation or damage of the peripheral portion of the opening portion.

(C) If the unsealing/spout member including the unsealing means such as a cutting blade is configured to be prevented from rotating with respect to the head portion of the container main body, the peripheral portion of the unsealing member is not subjected to the rotational force of the cutting blade at all, and therefore, abnormal deformation or damage of the peripheral portion of the unsealing member can be prevented more favorably. Further, the unsealing unit including the cutting edge can form the joint portion which remains without being cut and the slit in an accurate angle range.

(D) Since the pressing rib formed on the inner surface of the cutting edge of the lower portion of the cylindrical member presses down the sealing film inside the slit, the sealing film is assisted to hang down from the joint portion left by the cutting. Further, the pressing rib enters between the cutting edge and the sealing film inside the slit, and the gap between the slit is enlarged to reduce the contact resistance of the cutting edge, thereby further reducing the cap rotational force required for the press-cutting.

(E) If the cutting edge is formed by a plurality of continuous chevron-shaped cutting edge portions, the crush pressure can be dispersed, and deformation of the peripheral portion of the sealing film due to the crush pressure of the cutting edge can be more favorably prevented.

(F) The sealing film after being press-cut is pressed by the flat portion of the lower portion of the cylindrical member where the cutting edge is not formed, and is suspended from the connecting portion by the outer peripheral surface of the flat portion, and is kept in a state of being pressed against the inner peripheral surface of the head portion of the container body.

(G) When not in use, the cap, the unsealing/pouring outlet member and the unsealing prevention member can be integrally attached to the head of the container body after the contents are filled, so that the assembly of the container can be easily completed in one process.

(H) Whether or not the container is in an unused state can be clearly determined by the presence or absence of the opening prevention member, the presence or absence of the opening/spout member being engaged with the head of the container body, the presence or absence of the opening hole at the head end, and the like.

Drawings

Fig. 1 is a diagram showing a container in an unused state. (a) Is a top view, (b) is a front view, and (c) is a side view.

Fig. 2 is a view showing a container main body. (a) Is a top view, (b) is a front view, and (c) is a side view.

Fig. 3(a) is a partially enlarged longitudinal sectional view of the container in an unused state (the left side of the center line is an elliptical major axis side longitudinal sectional view, and the right side is an elliptical minor axis side longitudinal sectional view). (b) Is a partially enlarged transverse cross-sectional view of the spanning/rotation limit restricting portion of the container in an unused state.

Fig. 4 is a view showing the unsealing/pouring outlet member. (a) Is a top view, (b) is a front view, and (c) is a side view.

Fig. 5(a) is a longitudinal sectional view of the unsealing and spout-opening member, and (b) is a partial bottom view of the unsealing and spout-opening member.

Fig. 6 is a development view of a cutting edge formed at a lower portion of an inner cylinder constituting an unsealing/spout member.

Fig. 7(a) is a partially enlarged longitudinal sectional view of the container after use is started (left side of the center line is an elliptical major axis side longitudinal sectional view, and right side is an elliptical minor axis side longitudinal sectional view). (b) Is a partially enlarged transverse cross-sectional view of the spanning/rotation limit restricting portion of the container after the start of use.

Fig. 8 is a view showing the container after use is started. (a) Is a top view, (b) is a front view, and (c) is a side view.

Description of the symbols

1-a container; 2-a container body; 21-a head; 21 a-small cylinder; 21 b-a large cylinder; 21 c-basal end; 22-shoulder; 23-a body part; 24-sealing film (unsealable portion); 25-annular ridge (engaging portion); 26-longitudinal ribs (anti-rotation parts); 27-external thread (external screw); 28-step-over rotation limit limiter; 28 a-spanning projection; 28 b-rotation limit limiting projection (rotation limit limiting portion); 28 c-positioning recess; 3-an anti-unsealing member; 31-a cylindrical portion; 32-a chimeric sheet; 33-opening; 34-a locating tab; 4-covering; 41-top wall; 42-an outer cylinder; 43-inner cylinder; 43 a-internal screw thread (internal screw); 43 b-annular protrusion (holder); 44-a gasket; 45-locating protrusions; 5-unsealing/pouring-out member; 51-a top wall; 52-an injection port; 53-cylindrical portion; 54-an outer barrel; 54 a-annular recess; 54 b-outer cylinder through hole; 54 c-axial projecting strip (rotation stopping part); 54 d-longitudinal grooves; 54 e-engaging protrusion (engaging portion); 54 f-a clamping surface; 55-annular void; 56-inner cylinder (cylindrical member); 57-cutting edge (unsealing means); 57 a-cutting edge portion a; 57 b-cutting edge portion b; 57 c-cutting edge portion c; 58-flat portion (unsealing unit); 59-pressing the rib.

Detailed Description

The present invention relates to a container with an unsealing/spout member that unseals an openable portion of a container body filled with contents to form a spout for the contents.

The container of the present invention comprises at least (a) a container body, (b) a lid, and (c) an unsealing/spout member described below.

(a) A container body provided with: a cylindrical head having an openable portion at an upper end portion thereof, a locking portion for locking the unsealing/spout member in a release-preventing state, and an external screw at an outer peripheral surface thereof; and a body part.

(b) And a cap which is provided with a holding portion capable of holding the unsealing and spout member and an internal screw capable of being screwed with the external screw, and which is detachably attached to the head portion of the container body by the screwing.

(c) An unsealing/pouring port member comprising: an unsealing unit that unseals the openable portion to form an open hole; an engaging portion that engages with the engaging portion to bring the unsealing/spout member into a state of coming off from the head portion of the container body; and a spout which is capable of pouring out the contents of the container body when the unsealing/spout member is locked in a coming-off preventing state at the head of the container body, and which is locked in a coming-off preventing state at the head of the container body when the unsealing member is moved to the body side together with the cap along with the rotation of the cap during screwing and the unsealable portion at the upper end of the head is unsealed by the unsealing means to form an unsealable hole. This movement toward the body side is a parallel movement in the axial direction, and is not accompanied by forced rotation.

The container of the present invention further includes an unsealing prevention member for preventing the unsealing unit from coming into contact with the openable portion in an unused state, so that the unused state of the container can be reliably and visually recognized. The unsealing preventing member is provided in the container in an unused state, and is configured to restrict the lid from moving in the axial direction toward the container main body side in accordance with the rotation of the lid at the time of screwing, and to prevent the unsealing means formed in the unsealing/spout member held by the lid holding portion and moving in the axial direction together with the lid from coming into contact with the unsealing able portion, and may be, for example, a member having: an opening through which the cylindrical head portion can pass; and a cylindrical portion having an axial length as a spacer for preventing the unsealing means from contacting the unsealable portion.

In the case where the container does not have the opening prevention member, in order to avoid the opening-able portion from being inadvertently opened, it is necessary to distribute and present the opening/spout member by separating it from the container body or the lid, or separating the lid holding the opening/spout member from the container body, or the like.

At the time of starting use, the unsealing preventing member is detached, and the cap holding the unsealing/spout member therein is screwed to the head portion of the container main body. The unsealing means unseals the unsealable portion at the distal end of the head to form an unsealable hole by moving the unsealing/pouring member held in the cap in the axial direction toward the body side together with the cap as the cap is rotated in the screwing direction. At this time, the unsealing and spout member is engaged with the head portion of the container body, and thereafter, functions as a spout member integrated with the head portion of the container body.

The container body, the lid, the opening/spout member, and the opening prevention member are not particularly limited in material, but generally, synthetic resin, metal, glass, a composite material thereof, and the like can be used. Further, materials having various physical properties can be used depending on contents such as transparency, opacity, partial transparency, heat resistance, and gas impermeability, applications, components, and the like. In general, synthetic resins are preferably used in view of lightweight property due to low specific gravity, and easy formation of various containers and functional containers with good design and appearance. The synthetic resin used is not limited, and, depending on the contents, the application, the components, and the like, olefin resin such as polypropylene and polyethylene, polyester resin such as PET, ABS resin, and the like can be used.

The contents filled in the container main body are not limited, but generally, they are liquids, granules, powders, solid-liquid mixtures, creams, frozen products, and the like, and examples thereof include cosmetics, detergents, various medicines, beverages, foodstuffs, and the like.

Hereinafter, each constituent element will be further described.

(Container body)

The container body of the present invention includes at least a cylindrical head portion and a body portion as a main storage portion for the contents. A shoulder portion inclined horizontally or downward may be provided between the head portion and the body portion directly below the head portion.

The cylindrical head includes at least: an openable portion; a locking part for locking the unsealing and pouring port member in a retaining state; and an external screw such as an external screw which is screwed with an internal screw such as an internal screw formed on the cap.

The openable section may be a sealing film closing an upper end of the head section. Preferably, the sealing film is a notched portion having a thickness smaller than the thickness of the other portion of the cutting edge constituting the unsealing means, and continuous press-cutting of the cutting edge contact portion is facilitated.

The engagement portion that can engage the unsealing/spout member in the anti-slip state is preferably an annular protrusion protruding outward in the radial direction from the entire circumferential direction of the upper end of the small cylindrical portion constituting the upper portion of the cylindrical header.

An external thread such as an external thread may be formed on the outer peripheral surface of the large cylindrical portion constituting the lower portion of the cylindrical head portion. The outer spiral is preferably continuous, but may be provided intermittently, and may be provided in any one of a single strip and a plurality of strips.

The head portion may be formed with a rotation stop portion so that the unsealing/spout member provided with the unsealing unit does not rotate relative to the head portion when the unsealing unit unseals the openable portion, or after the unsealing/spout member is locked in a coming-off prevention state at the cylindrical head portion. The rotation stopper formed on the head may be a longitudinal rib which is in sliding contact with an axial protrusion on the inner surface of the outer tube of the unsealing/spout member. Preferably, the longitudinal ribs are provided in plurality at equal intervals on the outer periphery of the small cylindrical portion constituting the upper portion of the cylindrical head portion.

Preferably, the container body includes a rotation limit restricting portion that restricts a rotation limit of the cap or the tamper-proof member in the screw attachment direction. The rotation limit restricting portion may be a rotation limit restricting projection formed on a proximal end portion of the head portion and having a restricting surface substantially perpendicular to a tangent line of an outer periphery of the proximal end portion. Most preferably, the restriction surface is perpendicular to the tangent of the outer periphery of the proximal end portion, but may be allowed to be within a range of ± 40 degrees (preferably ± 20 degrees) from the perpendicular surface. When the positioning projection formed on the cap or the tamper-proof member faces the regulating surface, the base end portion preferably has a portion that engages with a surface of the positioning projection opposite to the facing portion in order to hold the cap or the tamper-proof member at the position. As such a portion of the engagement, a spanning protrusion may be used, and the positioning protrusion can pass by its elastic deformation.

Although the body of the container may have various shapes and configurations such as rotationally symmetrical, rotationally asymmetrical, circular cross section, elliptical cross section, polygonal cross section, etc., in the case of an extruded tubular container, it may be preferable to make the axially perpendicular cross section of the outer contour elliptical.

The container body may be manufactured by the following method, in addition to being integrally manufactured in one step by an injection molding process or the like: the upper end of a flexible cylindrical tube constituting a body part is held in a mold cavity, a synthetic resin is injected into the mold cavity, a head part and a shoulder part are injection-molded, and the synthetic resin of the shoulder part is integrated with the upper end of the tube. In the case of a container body having an open lower end, a backflow prevention member for preventing the backflow of the content into the container body may be inserted into the head through the lower end opening and fixed. After the contents are filled from the lower end opening, the lower end of the body portion may be closed by an appropriate sealing method such as ultrasonic welding or hot plate heat sealing. Further, after the content is filled from the neck top opening connected to the body, an inner lid having an openable portion, a locking portion, an outer thread, and if necessary, a backflow prevention member may be sealed and fixed to the neck to form a head portion, thereby forming a container body. The resin portion of the tubular tube or the like of the body portion may have a multilayer structure including various resin layers such as a gas barrier layer and an adhesive layer. In the case of a bottle container, at least the openable portion may be made of an openable material such as resin, and glass or metal may be used in addition.

(lid)

The cap includes a holding portion capable of holding the unsealing and spout member and an internal screw such as an internal screw which is threadably engaged with the external screw on the outer peripheral surface of the head portion of the container body, and is configured to be detachably attached to the head portion of the container body with or without the unsealing member interposed therebetween by the above-described screwing.

Such a cover may be provided with: a top wall; an outer cylinder drooping from the outer periphery of the top wall; and an inner cylinder which is aligned with the center of the outer cylinder and is suspended from the lower surface of the top wall, wherein the inner cylinder has an inner spiral on the inner circumferential surface and a holding part which is engaged with the unsealing/spout member.

The holding portion may be an annular projection on the inner peripheral surface of the inner cylinder that loosely fits into an annular recess on the outer peripheral surface of the unsealing/spout member, and the holding portion may be configured to loosely hold the unsealing/spout member including the unsealing means so as not to fall off from the inside of the cap, and to move the unsealing/spout member in the axial direction of the head of the container body together with the cap in accordance with the rotation of the cap at the time of the screwing. The unsealing/spout member loosely held in the inner cylinder of the lid can be held, and the elasticity of the gasket can be maintained without pressing the gasket fixed to the inner surface of the top wall of the lid by adhesion or the like and without contracting the gasket in an unused state. When the container is unsealed and used, the unsealing and spout-opening member is locked to the head of the container body, and when the cap is screwed on, the upper surface of the top wall of the unsealing and spout-opening member can be brought into contact with the top surface of the cap inner cylinder or the gasket fixed to the top surface. Even after the unsealing and pouring spout member is locked in the coming-off preventing state at the head of the container body, the holding portion and the annular recess portion can be brought into contact with each other, but their dimensions have been previously configured so as not to hinder the attachment and detachment of the cap to the head of the container body.

Preferably, the cap includes a positioning projection which engages with a positioning recess formed between a rotation limit restricting portion of the vessel body head and the spanning projection so as to be held at the rotation limit position without rotating beyond the rotation limit when the vessel body head is mounted by rotating in the screw tightening direction.

As a member capable of closing the spout of the unsealing/spout member which is locked in a slip-off preventing state at the head of the container main body, a gasket fixed to the inner surface of the top wall of the lid by bonding or the like may be used, and a plug body formed on the lid body of the hinge lid may be used. In the case of the plug formed on the lid body of the hinge lid, the top wall is formed with an opening, and the spout exposed from the opening is closed by the plug of the lid inner surface supported by the hinge.

Examples of the material of the lid include synthetic resin such as polypropylene, glass, and metal.

(unsealing spout member)

The unsealing/spout member is configured to include: an unsealing unit that unseals the openable portion to form an open hole; an engaging portion which engages with the engaging portion of the head portion of the container body when the opening hole is formed, and which brings the unsealing/spout member into a state of coming off from the head portion of the container body; and a spout which is capable of pouring out the contents of the container body when the unsealing/spout member is in a coming-off preventing state at the head of the container body, and which is moved to the body side of the container body together with the lid in accordance with the rotation of the lid during screwing in a state of being held at the holding portion of the lid, and which is engaged with the engaging portion when the unsealing unit unseals the unsealable portion at the upper end portion of the head to form an unsealed hole, thereby bringing the head of the container body into the coming-off preventing state.

When the cap is rotated in the screwing direction while being capped on the head portion after the unsealing prevention member is removed, the unsealing/spout member held on the cap is axially moved toward the body portion side together with the cap, the unsealing unit unseals the unsealable portion at the upper end portion of the head portion to form an unsealed hole, the unsealing/spout member is locked in a coming-off prevention state at the head portion of the container body in a state where the annular sealing portion of the unsealing/spout member is in contact with the annular sealing surface around the unsealed hole, and the unsealing/spout member thereafter functions as a spout member integrated with the container body.

Since the openable and closable portion is opened and closed by the rotation of the cap during screwing, a relatively large press-cutting pressure can be applied to the opening unit including the cutting edge with a relatively small cap rotation force. The unsealing/pouring port member is held only loosely by the lid and does not rotate integrally with the lid when the unsealing means unseals the openable portion, and therefore, a pressing force from the cutting blade acts on the peripheral portion of the openable portion, but at least a large rotational force does not act thereon. Therefore, even in a container made of a material having relatively high flexibility or relatively low strength, such as a squeeze container, or a container having a relatively small opening hole, the peripheral portion of the openable portion is not abnormally deformed or damaged, and the opening hole can be easily and satisfactorily formed. If the unsealing and spout member is configured to be prevented from rotating with respect to the head portion of the container main body, the peripheral portion of the unsealing portion is not subjected to the rotational force of the cutting blade at all, and therefore, abnormal deformation or damage of the peripheral portion of the unsealing portion can be prevented more favorably.

The unsealing and spout member may be constituted by an annular top wall having a spout formed at a central portion thereof and a cylindrical portion depending from the top wall, the cylindrical portion including: an outer cylinder having a through hole with a cross section in a transverse rectangular shape; an inner cylinder concentric with the outer cylinder and having an unsealing unit formed at a lower portion thereof; and an annular gap between the inner and outer cylinders, the annular top surface forming an annular seal.

Preferably, the unsealing means for unsealing the unsealable part to form the unsealed hole includes a cutting blade formed at a lower portion of the inner cylinder constituting the unsealing/spout member. The cutting blade may form a slit by press cutting in a range of 240 to 340 degrees, more preferably 260 to 320 degrees around the openable part of the sealing film or the like. If the cutting edge for press-cutting in the above-mentioned range is constituted by a plurality of (preferably 2 to 5) continuous chevron-shaped cutting edge portions, the press-cutting pressure can be dispersed, and deformation of the peripheral portion of the sealing film due to the press-cutting pressure of the cutting edge can be more favorably prevented. On the inner peripheral surface of the cutting edge formed at the lower portion of the inner cylinder, 1 or 2 or more pressing ribs extending in the axial direction may be formed. Preferably, the pressing rib is configured to extend axially rearward from a position slightly behind the tip of a part or all of the polygonal cutting edge portions. The pressing rib can press the sealing film inside the cutting seam formed by the cutting blade, enter the cutting seam and form a gap so as to prevent the inner circumferential surface of the cutting blade from being tightly attached to the sealing film inside the cutting seam, thereby reducing contact resistance and reducing force required by the cutting blade to press and cut the sealing film.

The part of the sealing film which is not cut by the cutting blade and is within the range of 20-120 degrees (preferably 40-100 degrees) acts as a joint part so as not to mix the press-cut sealing film into the content in the container. In order to form such a joint portion, a flat portion is preferably formed in a lower portion of the cylindrical member where the cutting edge is not formed. The cylindrical member having the flat portion at the lower portion deforms the seal film pressed and cut by the pressing rib so as to hang down from the coupling portion and press the seal film against the inner peripheral surface of the head portion of the container body, and the pressed and cut seal film can be maintained in this state.

The rotation stop portion is preferably formed so that the unsealing/spout member provided with the unsealing unit does not rotate relative to the head when the unsealing unit unseals the openable portion, or after the unsealing/spout member is locked in a coming-off prevention state at the cylindrical head. The rotation stopper formed on the unsealing/pouring port member may be an axial protrusion extending in the axial direction on the inner peripheral surface of the outer cylinder constituting the cylindrical portion and coming into sliding contact with the longitudinal rib on the outer peripheral surface of the head portion. The axial ribs are preferably tapered at their tips and are arranged in a plurality at equal intervals in the circumferential direction so as to be in sliding contact with the longitudinal ribs at any position. By forming such a rotation stopper, it is possible to prevent abnormal deformation or damage of the peripheral portion of the unsealable portion, to form a joint portion between the slit and the remaining portion without being cut in an accurate angular range, and to prevent unnecessary rattling of the unsealing/spout member after the engagement of the head portion of the container main body.

The engaging portion for bringing the unsealing/spout member into the anti-slip state at the head of the container main body may have any configuration, but 1 or 2 or more engaging protrusions formed by protruding the lower portion of the through hole of the outer tube having a horizontally rectangular cross section from the inner peripheral surface of the outer tube may be used.

The unsealing/spout member is made of a material harder than the unsealable portion, and for example, a polyester resin such as PET is used as the synthetic resin.

(anti-unsealing Member)

The unsealing prevention member is provided in the container in an unused state, and regulates the lid to move axially toward the container body side in accordance with the rotation of the lid at the time of screwing, thereby preventing the unsealing unit of the unsealing/spout member held by the lid from coming into contact with the unsealable portion.

The tamper-evident member that exerts such an action may be a member that can be interposed between the screw-on cap and the container body portion or the shoulder portion. The shape and structure thereof are not limited, but it is preferable to include, in view of appearance: an opening through which the cylindrical head portion can pass; and a cylindrical part having an outer contour substantially equal to that of the lid and the container body part and having an axial length as a spacer.

The unsealing preventing member may be configured as a member to be coupled to the cap lower portion (for example, the lower end surface of the outer cylinder) or the container body (for example, the upper surface of the shoulder portion) through the easily breakable coupling portion, so that the unused state is more reliable, but if the unsealing preventing member is separate from the cap or the container body, the easily breakable coupling portion is not left as a cutting mark, and the degree of freedom in the appearance design of the unused container can be increased, so that it is preferable. Further, in order to make the unused state and the used state of the container body visible at a glance, it is preferable that the tamper-evident member be in an appearance (e.g., a different color) clearly distinguishable from the cap or the container body.

The opening prevention member in the case of being separate from the cap and the container body is preferable because it is relatively easy to attach and detach the opening prevention member to and from the head of the container body if the opening prevention member can be operated integrally with the cap. In order to be operable integrally with the lid, the unsealing prevention member may be provided with an engaging piece whose outer circumferential surface is elastically pressed against the inner circumferential surface of the lid outer cylinder. Although the fitting pieces may be formed continuously over the entire circumference, it is preferable to intermittently arrange a plurality of fitting pieces (for example, 2 to 6 fitting pieces) at predetermined intervals in the circumferential direction from the viewpoint of material saving.

When the cap integrally holding the opening prevention member is attached to the container body by rotating the cap in the screwing direction at the head portion of the container body, the opening prevention member preferably includes a positioning protrusion engageable with a positioning recess formed at the head base end portion of the container body or the like in order to limit the rotation limit.

As the material of the opening preventing member, relatively hard synthetic resin such as ABS, glass, metal, and the like can be cited.

Examples

The present invention will be described in further detail below with reference to examples of the present invention, but the present invention is not limited to these examples, and it goes without saying that appropriate design changes may be made within a range not departing from the gist of the present invention.

Fig. 1 shows a container 1 of the present embodiment in an unused state, fig. 1(a) shows a plan view, fig. 1(b) shows a front view, and fig. 1(c) shows a side view.

The container 1 in an unused state includes: a container body 2; an opening prevention member 3; a cover 4; and an unsealing/spout member 5 which is mounted in the lid 4 and is invisible from the outside. In the present embodiment, the body portion 23 of the container body 2, the open-preventing member 3, and the lid 4 are formed into an elliptical shape whose outer contour is almost the same in cross section.

< Container body 2>

Fig. 2 shows a container main body 2 of the present embodiment, fig. 2(a) is a plan view, fig. 2(b) is a front view, and fig. 2(c) is a side view.

The container body 2 of the present embodiment includes: a cylindrical head portion 21; an elliptical body portion 23 thereunder; and a shoulder 22 connecting the head 21 and the body 23 therebelow.

The cylindrical head 21 is composed of a small cylindrical portion 21a, a large cylindrical portion 21b, and a base end portion 21c in this order from the top. The upper end of the small cylinder 21a is closed by a seal film 24 (see fig. 3(a)), and an annular ridge 25 protruding in the radial direction is provided on the outer periphery of the upper end, and 4 longitudinal ribs 26 are provided at equal intervals on the lower portion of the outer periphery of the small cylinder 21 a. A male screw 27 is formed on the outer peripheral surface of the large cylindrical portion 21 b. On the outer periphery of the base end portion 21c, 2 spanning/rotation limit restricting portions 28 are provided in the longitudinal direction of the elliptical shape of the container body. Each of the spanning and rotation limit restricting portions 28 has a spanning protrusion 28a and a rotation limit restricting protrusion 28b provided in this order in the screw tightening rotation direction (clockwise direction when viewed from above) of the external screw 27, and the protrusion 28a and the protrusion 28b function as a positioning recess 28c (see fig. 3 (b)).

The container body 2 of the present embodiment can be manufactured by the following method: the upper end of the flexible cylindrical tube constituting the body portion 23 is held in a mold cavity, and the resin of the shoulder portion 22 is integrated with the upper end of the tube while injecting the synthetic resin into the mold cavity to injection mold the head portion 21 and the shoulder portion 22 (see fig. 3 (a)). In the container body 2 thus manufactured, the upper end of the head 21 is closed by the seal film 24, and the lower end of the cylindrical tube is open. The container body 2 is filled with the contents from the lower end opening, and then the lower end of the body portion is closed by a suitable sealing method.

< cover 4>

In fig. 3(a), a longitudinal sectional view of the cap 4 at the upper portion of the container 1 in an unused state is shown (the left side of the center line is an elliptical major axis side longitudinal sectional view, and the right side is an elliptical minor axis side longitudinal sectional view), and in fig. 7(a), a longitudinal sectional view of the cap 4 at the upper portion of the container 1 after use is started is shown (the left side of the center line is an elliptical major axis side longitudinal sectional view, and the right side is an elliptical minor axis side longitudinal sectional view).

The cover 4 includes: an oval top wall 41; an outer cylinder 42 having an elliptical cross section and extending downward from the outer periphery of the ceiling wall 41; a cylindrical inner tube 43 positioned inside the outer tube 42 and hanging from the top wall 41; and a disc-shaped gasket 44 fixed to the inner surface of the top wall 41 in the inner cylinder 43 by bonding or the like.

An annular projection 43b is formed on the upper portion of the inner surface of the inner cylinder 43, and loosely fitted into an annular recess 54a on the outer peripheral surface of the unsealing/spout member 5 to keep the unsealing/spout member 5 from falling from the inside of the inner cylinder 43; an internal thread 43a formed in the lower portion of the inner surface of the inner cylinder 43 and screwed with the external thread 27 provided on the outer peripheral surface of the large cylindrical portion 21b of the head portion 21 of the container body 2; a positioning projection 45 is formed at the lower end of the inner cylinder 43 on the elliptical major axis side 2, and is engageable with a positioning recess 28c formed in the base end 21c of the head 21 of the container main body 2 (see fig. 7 (b)).

Since the cap 4 and the tamper-proof member 3 can be integrally handled by fitting the fitting piece 32 formed on the upper surface of the tamper-proof member 3 to the lower inner surface of the outer cylinder 42 of the cap 4 in an unused state, attachment and detachment of the cap 4 and the tamper-proof member to and from the head of the container body 2 can be performed in 1 step.

At the start of use, after the unsealing-preventing member 3 is removed from the lower portion of the outer cylinder 42 of the cap 4, the cap 4 holding the unsealing/spout member 5 inside the inner cylinder 43 is attached to the head 21 of the container main body 2.

< unsealing/spout Member 5>

Fig. 4 and 5 show the unsealing/spout member 5. Fig. 4(a) shows a plan view, fig. 4(b) shows a front view, fig. 4(c) shows a side view, fig. 5(a) shows a longitudinal sectional view, and fig. 5(b) shows a partial bottom view.

The unsealing/spout member 5 is composed of an annular ceiling wall 51 having a spout 52 formed at the center thereof, and a cylindrical portion 53 depending from the ceiling wall 51. The cylindrical portion 53 includes an outer cylinder 54, an inner cylinder 56 concentric with the outer cylinder 54, and an annular gap 55 therebetween.

An annular recess 54a is formed in the upper outer peripheral surface of the outer cylinder 54, and loosely fitted to an annular protrusion 43b on the inner peripheral surface of the inner cylinder 43 of the lid 4. An outer cylinder through hole 54b having a horizontally rectangular cross section is formed in the annular recess 54a, and is provided at a point-symmetric position at 2 (see fig. 4 c). An engaging protrusion 54e having an engaging surface 54f protruding from the inner peripheral surface of the outer cylinder 54 and engageable with the lower surface of the annular protrusion 25 of the container main body 2 protruding outward from the upper end of the head 21 is formed on the lower surface of the outer cylinder through hole 54b having a horizontally rectangular cross section (see fig. 5 a).

12 axial ribs 54c extending in the axial direction are formed at equal intervals on the lower portion of the inner peripheral surface of the outer cylinder 54, and longitudinal grooves 54d are formed between the adjacent axial ribs 54c, into which the longitudinal ribs 26 provided on the outer peripheral surface of the small cylinder portion 21a of the head portion 21 of the vessel body 2 are inserted. The lower end of each axial protrusion 54c is tapered (tapered) so that when it abuts the upper end of the longitudinal rib 26, the unsealing/spout member 5 rotates at a predetermined small angle and the longitudinal rib 26 enters the longitudinal groove 54 d. Therefore, the longitudinal rib 26 enters the longitudinal groove 54d and is prevented from rotating regardless of the rotational position of the unsealing and spout member 5 with respect to the head 21 of the container body 2.

The lower portion of the inner cylinder 56 functions as unsealing means, and is formed with a cutting edge 57 and a flat portion 58 that can unseal the sealing film 24 at the upper end portion of the head portion 21 of the container main body 2. Fig. 6 is a developed view of the lower portion of the inner cylinder 56 including the cutting edge 57. The cutting edge 57 is formed within 280 degrees of the inner tube 56, and is constituted by 3 cutting edge portions 57a to 57c projecting downward in a chevron shape. The central cutting edge portion 57b is formed in a laterally symmetrical chevron shape, and the cutting edge portions 57a, 57c on both sides are formed in a laterally asymmetrical chevron shape with the tip closer to the central cutting edge portion 57b side. Pressing ribs 59 are formed on the inner peripheral surfaces of the cutting edge portions 57a and 57c on both sides, and extend upward in the axial direction from positions slightly above the tips of the cutting edge portions 57a and 57 c. The lower end of the remaining 80-degree range of the lower portion of the inner cylinder 56, in which no cutting edge is formed, is formed as a flat portion 58. The periphery of the sealing film 24 is gradually pressed and cut by the cutting edge 57 to form a slit in a range of 280 degrees, and the pressing rib presses the sealing film 24 inside the slit and enters the slit to deform the sealing film 24 inside the slit toward the center side, thereby forming a gap between the inner peripheral surface of the cutting edge 57 and the sealing film 24 inside the slit to reduce the contact resistance received by the cutting edge 57. As described above, since the unsealing and spout member 5 including the inner cylinder 56 having the cutting edge 57 formed at the lower portion thereof is prevented from rotating with respect to the head 21 of the container main body 2, the portion of the sealing film 24 which is accurately press-cut within the range of 280 degrees is accurately left as the connecting portion corresponding to the remaining 80 degrees, and the portion other than the connecting portion is further pressed by the flat portion 58, and is suspended from the connecting portion by the outer peripheral surface of the flat portion 58, and is held in a state of being pressed against the inner peripheral surface of the head 21 of the container main body 2 (see the sealing film 24 of fig. 7 (a)). Therefore, the press-cut sealing film 24 hardly prevents the contents from being discharged, and does not float by mixing with the contents, giving a feeling of foreign matter. When the seal film 24 is unsealed by the unsealing means including the cutting blade 57 to form an unsealing hole, the annular seal surface around the unsealing hole at the tip of the head 21 of the container body 2 is brought into contact with the annular seal portion on the top surface of the annular space 55 of the unsealing/spout member 5, the engaging surface 54f on the engaging projection 54e on the inner surface of the outer cylinder 54 is engaged with the lower surface of the annular ridge 25 at the tip of the head 21 of the container body 2, and the unsealing/spout member 5 is held in the anti-slip state at the head 21 of the container body 2. The unsealing/spout member 5 is configured such that the spout 52 of the top wall 51 communicates with the unsealing hole through the inside of the inner tube 56, and therefore, functions as a spout member integrated with the head 21 of the container main body 2.

When the unsealing/pouring spout member 5 is locked in the head 21 of the container body 2 in the coming-off-preventing state, the outer cylinder 54 covers the peripheral surface of the small cylindrical portion 21a on the upper portion of the head 21, and an outer contour approximately matching the large cylindrical portion 21b on the lower portion of the head 21 is generated.

< opening prevention Member 3>

In fig. 3(a), a longitudinal sectional view of the unsealing prevention member 3 provided at the lower end of the lid 4 in the upper portion of the container 1 in an unused state is shown (the left side of the center line is an elliptical major axis side longitudinal sectional view, and the right side is an elliptical minor axis side longitudinal sectional view).

The opening prevention member 3 of the present embodiment, which is formed separately from the container body 2 and the lid 4, includes: a cylindrical portion 31 having an outer peripheral portion of an elliptical cross section continuously extending from a lower end of the outer cylinder 42 of the lid 4; a fitting piece 32 having an outer peripheral surface fitted to an inner peripheral surface of a lower portion of the outer cylinder 42 of the lid 4; an opening 33 through which the head 21 of the container body 2 can pass; and a positioning projection 34 engageable with a positioning recess 28c formed in the proximal end 21c of the head 21 of the container body 2 (see fig. 3 (b)).

The fitting pieces 32 are provided intermittently in the circumferential direction at 4 positions corresponding to both ends on the major axis side and both ends on the minor axis side of the ellipse, and since they are fitted such that their outer peripheral surfaces are elastically pressed against the inner peripheral surface of the outer cylinder 42 of the cap 4, the unsealing prevention member 3 can be held so as not to fall from the lower portion of the cap 4. Therefore, the attachment to and detachment from the head 21 of the container body 2 can be performed in 1 step together with the lid 4.

< Container 1 in an unopened state >

Fig. 1 and 3 show a container 1 in an unopened state. Fig. 1(a) is a plan view, fig. 1(b) is a front view, fig. 1(c) is a side view, fig. 3(a) is a partially enlarged longitudinal sectional view (left side of the center line is an elliptical major axis side longitudinal sectional view, and right side is an elliptical minor axis side longitudinal sectional view), and fig. 3(b) is a partially enlarged transverse sectional view of the rotation limit stopper 28.

The container 1 in an unused state includes: a container body 2; an opening prevention member 3; a cover 4; and an unsealing/spout member 5 which is mounted in the lid 4 and is invisible from the outside.

When the container main body 2 is a tubular container in which the upper end portion of the head portion 21 is closed by the seal film 24 and the lower end of the cylindrical tube is open, the lower end of the body portion is closed after the content is filled from the lower end opening, and the content is held in a sealed state in the container main body 2 (for convenience, fig. 1 and 8 omit a closed state or a closed portion in which the lower end opening is illustrated).

The lid 4 before being attached to the container body 2 is provided with an unsealing/spout-opening member 5 and an unsealing-preventing member 3, and the lid 4, the unsealing-preventing member 3 and the unsealing/spout-opening member 5 are integrally operable.

To attach the unsealing/spout member 5 to the lid 4, the unsealing/spout member 5 is inserted into the inner cylinder 43 of the lid 4, and the annular recess 54a on the outer peripheral surface thereof is fitted into the annular protrusion 43b on the upper portion of the inner surface of the inner cylinder 43. This fitting is loose enough that the unsealing/spout member 5 does not fall from the inside of the inner cylinder 43, and the unsealing/spout member 5 is allowed to slightly move up and down inside the inner cylinder 43. Therefore, the unsealing/pouring outlet member 5 can maintain its elasticity without pressing the gasket 44 on the inner surface of the top wall 41 of the lid 4 and without shrinking the gasket.

The attachment of the opening prevention member 3 to the lid 4 is completed by press-fitting the 4 fitting pieces 32 of the opening prevention member 3 into the outer cylinder 42 of the lid 4. The fitting between the outer peripheral surface of the fitting piece 32 and the inner peripheral surface of the outer cylinder 42 of the lid 4 is designed such that the fitting piece 32 and the outer cylinder 42 are sized such that both surfaces are elastically pressed against each other during fitting, and the opening prevention member 3 does not fall off from the lid 4, and the opening prevention member 3 can be removed without a large force when a user removes the opening prevention member 3.

In this way, the cap 4 to which the unsealing and pouring spout member 5 and the unsealing-preventing member 3 are integrally attached is covered on the head portion 21 of the container body 2 filled with the contents, the male screw 27 on the outer peripheral surface of the large cylindrical portion 21b of the head portion 21 is screwed into the female screw 43a on the inner surface of the inner cylinder 43 of the cap 4, and the cap 4 is rotated in the screwing direction. When the cap 4 is rotated in the screwing direction by a predetermined amount and the positioning projection 34 of the unsealing prevention member 3 comes into contact with the rotation limit projection 28b beyond the spanning projection 28a of the base end portion 21c of the head portion 21 of the container body 2, the cap cannot be rotated in the screwing direction any more, the positioning projection 34 is held in the positioning recess 28c between the spanning projection 28a and the rotation limit projection 28b, the cap 4 is held in a state where it cannot be rotated in the unscrewing direction even with a predetermined small force, and the cutting edge 57 of the lower portion of the inner cylinder 56 of the unsealing/pouring port member does not come into contact with the sealing film 24 of the upper end portion of the head portion 21 of the container body 2, and the sealing film 24 is held in a sealed state. Although the cap 4 in this state cannot be rotated in the screwing direction, the positioning protrusion 34 can be rotated across the curved surface of the spanning protrusion 28(a) by a strong force in the opposite direction to the screwing direction.

As described above, the container 1 of the present embodiment can be supplied for distribution, display, and the like in a state where the cap 4 to which the unsealing/spout member 5 and the unsealing-preventing member 3 are integrally attached is assembled to the head portion 21 of the unopened container main body 2. Therefore, it is possible to easily understand that the container body 2 is in an unused state by confirming that the sealing film 24 is not opened by confirming that the opening preventing member 3 is attached or by removing the lid 4 to which the opening preventing member 3 is integrally attached.

< Container 1 in opened State >

Fig. 7 and 8 show the container 1 in an unsealed state. Fig. 7(a) is a partially enlarged longitudinal sectional view (left side of the center line is an elliptical major axis side longitudinal sectional view, and right side is an elliptical minor axis side longitudinal sectional view), fig. 7(b) is a partially enlarged transverse sectional view of the rotation limit stopper 28, fig. 8(a) is a plan view, fig. 8(b) is a front view, and fig. 8(c) is a side view.

To unseal the container 1 in the unused state shown in fig. 1 and 3 to be in the used state, first, the cap 4 to which the unsealing/spout member 5 and the tamper-proof member 3 are integrally attached is rotated in the unscrewing direction and detached from the head portion 21 of the container main body 2. Next, after the unsealing prevention member 3 is detached from the cap 4 to which the unsealing and spout member 5 and the unsealing prevention member 3 are integrally attached, the cap 4 to which the unsealing and spout member 5 is integrally attached is again capped on the head portion 21 of the container body 2, the male screw 27 on the outer peripheral surface of the large cylindrical portion 21b of the head portion 21 is screwed with the female screw 43a on the inner surface of the inner cylinder 43 of the cap 4, and the cap 4 is rotated in the screwing direction. At this time, the cap 4 is moved toward the body 23 of the container body 2 by the screwing, but the unsealing prevention member 3 is removed, so that the cap can be rotated more, and the moving distance toward the body 23 is increased. As the lid 4 is moved in the axial direction toward the body 23, the unsealing/spout member 5 held in the inner cylinder 43 of the lid 4 is also moved in the axial direction, and the longitudinal rib 26 provided on the outer peripheral surface of the small cylinder 21a of the head 21 of the container body 2 enters the longitudinal groove 54d between the adjacent axial ribs 54c of the inner peripheral surface of the outer cylinder 54 of the unsealing/spout member 5 to be engaged with the sealing film 24 at the tip of the head 21 of the container body 2 while the cutting edge 57 at the lower part of the inner cylinder 56 of the unsealing/spout member 5 is brought into contact with the sealing film. When the lid 4 is further rotated, the unsealing/spout member 5 is further moved in the axial direction while the longitudinal rib 26 is in sliding contact with the longitudinal groove 54 between the adjacent axial ribs 54c, and the outer periphery of the sealing film 24 is press-cut by the cutting edge 57 formed by the 3-sided cutting edge portions 57a to 57c formed in the lower portion of the inner cylinder 56, thereby forming a slit, and the slit range is widened, and finally a continuous slit in the range of 280 degrees is formed. The sealing film inside the slit is pressed downward by pressing ribs formed on the inner surfaces of the cutting edge portions 57a and 57c, and the pressing ribs enter between the cutting edge portions 57a and 57c and the sealing film inside the slit to form gaps therebetween, thereby reducing contact resistance of the inner surfaces of the cutting edges 57 and reducing force required for press cutting.

The sealing film 24 is pressed and cut by the cutting edge 57 to a 280-degree range, and the portion corresponding to the remaining 80-degree portion of the flat portion 58 where the cutting edge 57 is not formed is not broken and remains as a connecting portion, and the portion other than the connecting portion is further pressed by the flat portion 58, and is suspended from the connecting portion by the outer peripheral surface of the flat portion 58, and is held in a state of being pressed against the inner peripheral surface of the head portion 21 of the container body 2. When the cutting blade 57 unseals the sealing film 24 at the upper end of the head 21 to form the opening hole, the annular sealing portion provided on the top surface of the annular space 55 of the tubular portion 53 of the unsealing/spout member 5 abuts against the annular sealing surface around the opening hole, and in this state, the engaging surface 54f on the upper portion of the engaging projection 54e of the outer cylinder 54 engages with the lower surface of the distal end annular ridge 25 of the head 21 of the container body 2, the unsealing/spout member 5 is locked in the head 21 of the container body 2 in the anti-slip state, and the spout 52 of the unsealing/spout member 5 communicates with the opening hole through the inside of the head 21, and thereafter functions as a spout member of the container body 2. In this state, if the cap 4 is further rotated in the screwing direction, the packing 44 on the inner surface of the top wall 41 of the cap 4 is pressed against the top wall 51 of the open/close spout member 5, the spout 52 is closed by the packing 44, the positioning protrusion 45 of the cap 4 is positioned in the positioning recess 28c between the spanning protrusion 28a and the rotation limit restricting protrusion 28b of the base end portion 21c of the head portion 21 of the container body 2, and the cap 4 is held in the following state: not only cannot be rotated in the screwing direction, but also cannot be rotated in the unscrewing direction with a predetermined small force.

After the unsealing hole is formed, when the contents in the container main body 2 are to be used, the cap 4 is rotated in the unscrewing direction by force, the engagement between the positioning projection 45 and the spanning projection 28a is released by at least one of elastic deformations, and the cap is detached from the head portion 21 of the container main body 2 by continuing the rotation in the unscrewing direction.

The use of the container body 2 after the unsealing can be easily confirmed by, for example, removing the unsealing member 3 or locking the unsealing/spout member 5 to the head 21 of the container body 2 after removing the cap 4.

The container with the unsealing means of the present invention forms the opening hole by the rotation of the lid at the time of screwing, but since the cylindrical member including the unsealing means is prevented from rotating or at least does not rotate positively with respect to the container main body head portion on which the unsealing portion is formed, a relatively large pressing force from the cutting edge is applied to the peripheral portion of the unsealing portion, but at least a large rotational force is not applied. Therefore, the present invention can be applied to a container made of a material having high flexibility or flexibility, a container having relatively low strength, a container requiring a small opening hole, and the like. For example, the container can be suitably used as a squeeze tube container for various cosmetics and the like. The container with the unsealing means of the present invention can be applied to a lid form that is opened and closed by screwing, and can also be applied to a lid form that is a lid supported by an opening and closing hinge.

Claims (12)

1. A container comprising a container body, a lid and an unsealing/pouring-port member,

the container body is provided with: a cylindrical head having an openable portion at an upper end portion thereof, a locking portion for locking the unsealing/spout member in a release-preventing state, and an external screw at an outer peripheral surface thereof; and a body part, wherein the body part is provided with a plurality of grooves,

the cap includes a holding portion capable of rotatably holding the unsealing/spout member and an internal screw threadably engaged with the external screw, and is detachably attached to the head of the container body by the threaded engagement,

the unsealing/spout member includes: an unsealing unit that unseals the openable portion to form an open hole; an engaging portion that engages with the engaging portion to bring the unsealing/spout member into a state of coming off from the head portion of the container body; and a spout which is capable of pouring out the contents of the container body when the unsealing/spout member is locked in a coming-off preventing state at the head of the container body, and which is configured to be brought into a coming-off preventing state at the head of the container body when the unsealing member is opened by the unsealing means by moving the unsealing member toward the body along with the rotation of the cap during screwing in a state of being held by the holding portion of the cap and unsealing the openable and closable portion at the upper end of the head to form an openable and closable hole,

the unsealing unit provided in the unsealing and pouring port member is moved to the body side in accordance with the formation of the unsealing hole by a pushing movement without rotation.

2. The container according to claim 1, further comprising an unsealing prevention member that prevents the unsealing unit from contacting the unsealable portion in an unused state.

3. The container according to claim 2, wherein the opening prevention member includes: an opening through which the cylindrical head portion can pass; and a cylindrical portion having an axial length as a spacer for preventing the unsealing means from contacting the unsealable portion.

4. The container according to claim 3, wherein the opening prevention member further includes a fitting piece fitted to an inner peripheral surface of an outer cylinder constituting the lid, and an outer shape of a cylindrical portion of the opening prevention member is formed to be approximately equal to an outer shape of a lower portion of the lid.

5. The container according to claim 3 or 4, wherein the container body is provided with a rotation limit restricting portion that restricts a rotation limit of the cap or the unsealing prevention member in the screw-fitting direction.

6. The container according to claim 5, wherein the rotation limit restricting portion is formed at a base end portion of the head portion and is a rotation limit restricting projection having a restricting surface approximately perpendicular to a tangent line of an outer periphery of the base end portion, the cap and the unsealing prevention member have a positioning projection facing the restricting surface, and the base end portion has a spanning projection which engages with a surface on an opposite side of a facing portion of the positioning projection when the positioning projection faces the restricting surface and which can pass over.

7. The container according to claim 1, wherein the unsealable portion is a sealing film, and the unsealing unit includes a cutting blade formed at a lower portion of a cylindrical member constituting the unsealing/spout member.

8. The container according to claim 7, wherein the cutting edge is press-cut in a range of 240 to 340 degrees around the sealing film, and the lower portion of the cylindrical member has a flat portion in which the cutting edge is not formed in a range of 20 to 120 degrees, so that the press-cut sealing film is suspended from a joint portion left after cutting.

9. The container according to claim 7 or 8, wherein the cutting edge is constituted by a continuous plurality of chevron cutting edge portions.

10. The container according to claim 7 or 8, wherein 1 or 2 or more pressing ribs extending in the axial direction are formed on the inner peripheral surface of the cutting edge formed at the lower portion of the cylindrical member.

11. The container according to claim 1, wherein a rotation stop portion that prevents relative rotation of the unsealing unit after contact with the openable portion is formed at the unsealing-spout member and the head portion.

12. The container according to claim 1, wherein the outer contours of the lid and the body are oval shapes having substantially the same cross section in the direction perpendicular to the axis.