Spout and spout-equipped container

Abstract

[Problem] To provide a spout and a spout-equipped container, the spout having an easily manufacturable structure in which a puncture part is supported, via a fragile part, by a fixing part fixed to a container. [Solution] The present invention comprises: a fixing part 21 that is fixed to a container 10 and has a through-hole 31 passing through between the inside and outside of the container 10, and a sealing section 32 for closing the through-hole 31 on the inner side of the container 10; and a puncture part 22 that has a puncture section 41 capable of puncturing the sealing section 32, and a mounting section 43 which is fixed by being attached to the fixing part 21 and to which the puncture section 41 is connected via a fragile part 42. In a state where the puncture section 41 is arranged in the through-hole 31, the puncture part 22 is mounted on the fixing part 21 by the mounting section 43.

Description

Spouts and containers with spouts

[0001] The present invention relates to a spout and a spouted container.

[0002] Conventionally, many containers equipped with various spouts have been known for storing fluid contents. The spouts have through-holes for dispensing the contents and are closed on the inside of the container by a sealing part. The sealing part is configured to be opened when the container is to be used.

[0003] For example, Patent Document 1 below proposes a medical port in which a thin sealing membrane that blocks outflow from a through-hole is adhered to a port main body fixed to a container, and the membrane is punctured by a communicating member supported via a fragile bridge. When connecting a liquid delivery tube to this medical port, a female connector is used to push in the communicating member having a puncture portion, breaking the fragile bridge and causing the puncture portion of the communicating member to puncture the membrane and open the port.

[0004] Patent No. 5920339

[0005] However, in conventional spouts in which a part that pierces the thin film of the sealing part is supported via a fragile part on a part fixed to the container, the fixed part, the piercing part, and the fragile part are all formed as a single unit, which places many manufacturing constraints on the shape of the spout, making it difficult to produce a spout with such a structure.

[0006] Therefore, an object of the present invention is to provide a spout and a spout-equipped container that can easily be fabricated into a structure in which a puncture portion is supported by a fixed part fixed to a container via a fragile portion.

[0007] The spout of the present invention, which solves the above-mentioned problems, comprises a fixed part that is fixed to a container and has a through hole that penetrates between the inside and outside of the container and a sealing part that blocks the through hole on the inside of the container, and a puncture part that has a puncture part that can puncture the sealing part and an attachment part that is attached and fixed to the fixed part and connects the puncture part via a fragile part, and is characterized in that the puncture part is attached to the fixed part by the attachment part with the puncture part positioned within the through hole.

[0008] According to the spout of the present invention, the through hole of the fixing part is closed by a sealing part inside the container. The puncturing part has a puncturing part capable of puncturing the sealing part and is connected to the mounting part via a fragile part. The puncturing part is fixed by the mounting part with the puncturing part positioned within the through hole. Therefore, when using the spout, the puncturing part can be operated by breaking the fragile part, and the through hole can be opened by breaking the sealing part.

[0009] In this spout, the puncture part is attached to the fixed part by an attachment portion. Therefore, the spout can be produced by separately manufacturing the fixed part and the puncture part and then integrating them. Therefore, a structure in which the puncture part and the fixed part are integrated can be easily constructed. Moreover, by separately manufacturing the puncture part and the fixed part, manufacturing restrictions on the shape of each part can be reduced, allowing for a high degree of freedom in the shape of each part. As a result, it is possible to easily produce various spouts with a structure in which the puncture part is supported by the fixed part via a fragile portion.

[0010] In the present invention, the mounting portion may be accommodated inside the through hole and may be fixed so as not to be detached by fitting into a fitting portion provided inside the through hole of the fixing part.

[0011] In this way, the attachment portion of the puncture part can be securely held within the through-hole of the fixed part without being subjected to external force, thereby preventing the puncture part from coming off the fixed part.

[0012] In the present invention, the puncture portion has a base portion having an outer diameter larger than the maximum inner diameter of the attachment portion, and a protruding tubular portion having an outer diameter smaller than the outer diameter of the base and having a tip portion capable of puncturing the sealing portion, and the through hole may have a base hole that is located closer to the interior of the container than the fitting portion and movably accommodates the base, and a protrusion hole that is located closer to the interior of the container than the base hole and movably accommodates the protruding tubular portion but cannot accommodate the base.

[0013] In this way, when the puncture portion is housed in the through hole and the attachment portion is fitted to the fitting portion, after the fragile portion breaks and the attachment portion and the puncture portion are separated, movement of the base of the puncture portion within the through hole is limited to between the attachment portion of the fitting portion and the projection hole. This reliably prevents the puncture portion from detaching from the fixed part after use of the spout, and the puncture portion does not detach into the container, preventing the container body from being damaged from the inside by the puncture portion. Furthermore, because the puncture portion does not detach from the container to which the spout is attached, the portion to which the contents are attached and the tip of the puncture portion are not exposed to the outside of the container after use of the spout, making it hygienic and highly safe.

[0014] The present invention may further include an attachment part that is detachably attached to the fixed part and the puncture part, and the attachment part has a first locking part that can be locked to the puncture part and a second locking part that can be locked to the fixed part, and is configured such that, by locking the first locking part to connect the attachment part to the puncture part and locking the second locking part to connect the attachment part to the fixed part, the second locking part can be further locked to break the fragile part and separate the puncture part and the attachment part, and the sealing part can be punctured by a tip of the puncture part that is integrated with the attachment part.

[0015] In this case, the first locking portion and the second locking portion can be screwed onto the puncture portion and the fixed part by rotating in the same direction, and the first locking portion can be screwed to connect the mounting part to the puncture portion, and the second locking portion can be screwed to connect the mounting part to the fixed part, and the second locking portion can be further screwed to break the fragile portion and separate the puncture portion and the attachment portion, and the tip of the puncture portion integrated with the mounting part can be rotated to puncture the sealing portion.

[0016] In this way, by attaching and fitting the mounting part to the puncture part and the fixed part by screwing or the like, the sealing part can be easily opened and the spout can be used. Therefore, the container can be opened regardless of the user's method of use, making it easy to use.

[0017] In addition, in the process of releasing the engagement between the second engagement portion and the fixed part, the attachment portion may release the engagement between the first engagement portion and the puncture portion, allowing the puncture portion to be retained within the through hole.

[0018] In this case, in the process of rotating the mounting part in the unscrewing direction to release the screwed state of the second locking part from the fixed part, the attachment part may prevent the puncture part from rotating together with the mounting part, thereby releasing the screwed state of the first locking part and the puncture part and allowing the puncture part to be retained within the through hole.

[0019] In this way, the puncture portion is retained within the through-hole of the fixing part after the spout has been used. This reliably prevents the puncture portion from being repeatedly used to open the seal of another spout. Furthermore, the puncture portion does not detach from the container, preventing the container body from being damaged from the inside by the puncture portion. Because the puncture portion does not detach from the container to which the spout is attached, the portion to which the contents adhere and the tip of the puncture portion are not exposed to the outside of the container after the spout has been used, making the spout highly hygienic and safe.

[0020] In the present invention, the tip of the puncture portion may be positioned at a position corresponding to a predetermined puncture position of the sealing portion, and the puncture portion may break the fragile portion and move forward to become integrated with the mounting part, so that the tip of the puncture portion can puncture the sealing portion at the puncture position.

[0021] In this way, the sealed portion can be broken at a position that makes it easy to open, making the opening operation easier.

[0022] The spouted container of the present invention, which solves the above-mentioned problems, is characterized by being equipped with the spout described above.

[0023] According to the spout and spout-equipped container of the present invention, it is possible to provide a spout and spout-equipped container that can easily produce a structure in which a puncture portion is supported by a fixed part fixed to the container via a fragile portion.

[0024] FIG. 1 is a perspective view of a spout according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of a spout according to an embodiment of the present invention. FIG. 3 is a cross-sectional view of a fixed part of a spout according to an embodiment of the present invention. FIG. 4 is a cross-sectional view of a fixed part of a spout according to an embodiment of the present invention. FIG. 5 is a perspective view of a puncture part of a spout according to an embodiment of the present invention. FIG. 6 is a cross-sectional view of a puncture part of a spout according to an embodiment of the present invention. FIG. 7 is a perspective view of an attachment part of a spout according to an embodiment of the present invention. FIG. 8 is a cross-sectional view of an attachment part of a spout according to an embodiment of the present invention. (a) to (c) are diagrams illustrating the opening operation of a spout according to an embodiment of the present invention. (a) to (c) are side views of a spout-equipped container according to an embodiment of the present invention, showing the container in use. (a) to (c) are diagrams illustrating the detachment operation of an attachment part of a spout according to an embodiment of the present invention.

[0025] Hereinafter, embodiments of the present invention will be described in detail.

[0026] 10, the spouted container 10 has a spout 20 fixed to a container body 11, and contains and seals a content. The spout 20 has a structure that allows the content to be dispensed by connecting an attachment part 23 and an external tube 13 when in use. The content is a fluid substance.

[0027] The spouted container 10 of this embodiment is an example of a container that can be used by connecting the attachment part 23 and the external tube 13 to the spout 20 to dispense the contents contained therein.

[0028] The container body 11 has a storage section 17 formed by a resin container wall 15, and the storage section 17 is formed by, for example, sealing a resin sheet around the periphery. The container wall 15 is made of a material that can reduce as much as possible the permeation of components that cause deterioration of the stored contents, and in the container wall 15 of this embodiment, an aluminum layer or the like is laminated to reduce light and oxygen permeability.

[0029] As shown in FIGS. 1 and 2 , the spout 20 includes a fixed part 21 fixed to the container body 11 and a piercing part 22 attached to the fixed part 21 .

[0030] The fixed part 21 is fixed to the container 10 and has a through hole 31 that passes through the container 10 from the inside to the outside, and a sealing part 32 that closes the through hole 31 inside the container 10. The puncture part 22 has a puncture part 41 that can puncture the sealing part 32, and an attachment part 43 that is attached and fixed to the fixed part 21 and connects the puncture part 41 via a fragile part 42.

[0031] As shown in Figures 3 and 4, the fixed part 21 is fixedly arranged on the container 10 and includes a main body portion 33 having a through hole 31 that penetrates between the inside and outside of the container 10, and a sealing portion 32 that closes the through hole 31 inside the container 10.

[0032] The main body 33 includes a boat-shaped portion 34 fixed to the container body 11 and a protruding portion 35 protruding from the boat-shaped portion 34 to the outside of the container, with a through-hole 31 formed through the boat-shaped portion 34 and the protruding portion 35. The main body 33 is integrally molded from a resin molded body that can be welded to the resin of the container wall 17.

[0033] The boat-shaped portion 34 is a portion that is disposed between the opposing container walls 17 of the container body 11 and fixed in a liquid-tight manner. The inner end surface 34a that is disposed inside the container has a plurality of surfaces that are inclined in opposite directions on both sides of a bent portion, and has a concave shape that is recessed in the axial direction of the through hole 31 in a roughly V-shape in side view.

[0034] Since the through hole 31 opens at the intersection of multiple surfaces of the inner end face 34a, the opening periphery of the through hole 31 on the inside of the container has a roughly L-shaped concave shape that is recessed in the axial direction of the through hole 31, similar to the inner end face 34a.

[0035] The protruding portion 35 is provided in a generally cylindrical shape and protrudes from the outer end face of the boat-shaped portion 34 toward the outside of the container. A second locked portion 36 is provided around the outer periphery of the protruding portion 35 to lock onto a second locking portion 66 of the mounting part 23, which will be described later. The second locked portion 36 is configured with a male screw.

[0036] The through hole 31 penetrates the main body 33 and the protruding portion 35 and is provided between the inside and outside of the container 10. The through hole 31 has a countersunk fitting portion 31a provided at the outer end and into which the mounting portion 43 of the puncture part 22 is fitted, a base hole 31b provided closer to the inside of the container 10 than the fitting portion 31a and for movably accommodating a base 51 of the puncture part 22 described below, and a protrusion hole 31c provided closer to the inside of the container 10 than the base hole 31b and for movably accommodating a protruding tubular portion 52 of the puncture part 22 described below but which cannot accommodate the base 51.

[0037] The sealing portion 32 closes the through-hole 31 of the main body portion 33 inside the container, and is made of a sheet material that covers almost the entire inner end surface 34a of the main body portion 33, and is airtightly joined by welding or the like along the entire periphery of the opening of the through-hole 31. The sheet material used for the sealing portion 32 is one that can minimize the transmission of light, oxygen, and other factors that cause deterioration of the contents, and is capable of being welded to the main body portion 33. In this embodiment, a sheet material is used in which a resin layer made of the same resin as the main body portion 33 and an aluminum layer with low light and oxygen permeability are laminated, and the sheet material may be a double sealant film in which resin layers are laminated on both sides of the aluminum layer.

[0038] Since the inner end surface 34a of the main body 33 and the periphery of the opening of the through-hole 31 have a generally V-shaped concave shape, the sheet material of the sealing portion 32 is bent in a generally V-shape corresponding to this shape and joined to the inner end surface 34a and the periphery of the opening of the through-hole 31. In this embodiment, the apex of the generally V-shaped bend of the sealing portion 32 is set as the puncture position to be punctured by the puncture portion 41 when opening the seal.

[0039] 5 and 6 , the puncture part 22 has an attachment part 43 that is attached to and fixed on the fixed part 21, and a puncture part 41 that is connected to the attachment part 43 via a fragile part 42 and can puncture the sealing part 32. The puncture part 22 has a through-hole 44 that is continuous with the attachment part 43 and the puncture part 41 and is open at both ends.

[0040] The mounting portion 43 is entirely housed inside the through hole 31 and is fixed so as not to be detached by fitting into a fitting portion 31a inside the through hole 31 of the fixing part 21. The mounting portion 43 has a shape corresponding to the countersunk fitting portion 31a at the outer end of the through hole 31, and has a generally ring shape having a large diameter portion 45 and a small diameter portion 46. In this embodiment, the outer diameter of the small diameter portion 46 is formed to be equal to the outer diameter of the base 51 of the puncture portion 41.

[0041] An interlocking portion 45a having an uneven shape is formed on the outer peripheral surface of the small diameter portion 46 at the end of the large diameter portion 45 on the small diameter portion 46 side by partially protruding the large diameter portion 45 in the axial direction. This can interlock with an interlocked portion 31d having an uneven shape provided in a stepped portion of the countersunk hole-shaped fitting portion 31a in the through hole 31 of the fixed part 21. By interlocking this interlocking portion 45a with the interlocked portion 31d of the through hole 31, the mounting portion 43 is positioned axially and circumferentially with respect to the through hole 31 of the fixed part 21. Furthermore, rotational displacement of the mounting portion 43 with respect to the through hole 31 is prevented.

[0042] Furthermore, a protrusion 43a protruding in the radial direction is provided on the side peripheral surface of the mounting portion 43. A receiving portion 31e corresponding to the protrusion 43a is provided on the fitting portion 31a. Therefore, by engaging the meshing portion 45a with the meshed portion 31d of the through hole 31 and locking the protrusion 43a into the receiving portion 31e of the through hole 31, the mounting portion 43 is attached to the through hole 31 in a state where it cannot move axially or circumferentially relative to the through hole 31.

[0043] By using such an attachment part 43 , the puncture part 22 is attached to the fixing part 21 with the puncture part 41 disposed inside the through-hole 31 .

[0044] Furthermore, a stopper 47 is formed by partially protruding the small diameter portion 46 in the axial direction at the end of the small diameter portion 46 of the mounting portion 43 on the side of the puncturing portion 41. This stopper 47 is shaped so that it can abut circumferentially against a stoppered protrusion 54 of the puncturing portion 41, which will be described later. When the stoppered protrusion 54 of the puncturing portion 41 abuts against the stopper 47 in the circumferential direction, it is possible to prevent the puncturing portion 41 from rotating.

[0045] The puncture section 41 has a generally cylindrical shape and is formed to be shorter than the through-hole 31 .

[0046] The puncture portion 41 includes a base portion 51 having an outer circumferential shape larger than the maximum inner diameter of the through-hole portion 44 of the attachment portion 43, and a protruding tubular portion 52 that protrudes from the base portion 51 and has an outer circumferential shape smaller than the outer periphery of the base portion 51. In this embodiment, the outer circumferential shape of the base portion 51 and the outer circumferential shape of the protruding tubular portion 52 are each formed into a cylindrical shape that is continuous in the axial direction and has a constant diameter.

[0047] The base 51 of the puncture section 41 is movably housed in the base hole 31b of the through hole 31. The protruding tube section 52 is movably housed in the protrusion hole 31c of the through hole 31. The outer circumferential surfaces of the protruding tube section 52 and the protruding tube section 52 are disposed close to or in sliding contact with the inner circumferential surface of the through hole 31.

[0048] A first locked portion 53 is provided on the inside of the rear end side of the base 51. The first locked portion 53 is engaged with a first locking portion 65 of the mounting part 23, which will be described later. The first locked portion 53 is formed as a female screw that can be threaded onto the first locking portion 65 of the mounting part 23.

[0049] A stoppered projection 54 is provided at the rear end of base 51, protruding toward mounting portion 43. After base 51 and puncturing portion 41 are separated by fragile portion 42 (described later), stoppered projection 54 rotates integrally with puncturing portion 41 and prevents rotation by abutting against stopper 47 of mounting portion 43 in the rotational direction.

[0050] The tip 55 of the puncturing part 41 is formed so as to be able to puncture the sealing part 32. The tip 55 is made up of the end face of the protruding tubular part 52 and has a blade shape that is inclined obliquely with respect to the axial direction. This tip 55 can cut the sealing part 32 by rotating around the axis while advancing the puncturing part 41.

[0051] It is preferable that the tip portion 55 is positioned as close as possible to the inner surface of the through hole 31, and by rotating the puncture portion 41 within the through hole 31, the tip portion 55 is able to cut the sealing portion 32 along the opening periphery near the opening periphery on the inside of the container of the through hole 31.

[0052] Tip 55 of puncturing portion 41 is disposed at a position corresponding to a predetermined puncture position of sealing portion 32. Specifically, immediately after fragile portion 42 is broken as described below, tip 55 of puncturing portion 41 is disposed at the puncture position set near the periphery of the opening of through-hole 31, which is the top of sealing portion 32 that is bent in a generally V-shape and disposed in a concave shape.

[0053] The fragile portion 42 is a portion that holds the puncture portion 41 in a breakable manner to the main body portion 33. In this embodiment, the stoppered protrusion 54 at the rear end of the base portion 51 and the end of the attachment portion 43 are connected by resin to an extent that the fragile portion 42 can be easily broken when the user applies a rotational force between them.

[0054] In this embodiment, the puncturing portion 41, the fragile portion 42, and the attachment portion 43 are integrally molded from the same resin as the main body portion 33, for example, from PP or PE.

[0055] The spout 20 of this embodiment is provided with an attachment part 23 that is detachably attached to the fixed part 21 and the puncture part 22 during use.

[0056] As shown in FIGS. 7 and 8, the attachment part 23 includes an attachment main body 61 and a flat operating part 62 connected to the side periphery of the attachment main body 61 .

[0057] The attachment body 61 has a connecting tube portion 63 having a connecting hollow portion 63 a that can communicate with the through hollow portion 44 of the puncture portion 41 , and a locking tube portion 64 provided on the outer periphery of the connecting tube portion 63 .

[0058] The connecting tube portion 63 is formed inside the locking tube portion 64 coaxially with the locking tube portion 64, with a diameter smaller than the inner circumference of the locking tube portion 64, and both ends protrude from the locking tube portion 64. This connecting tube portion 63 has a connecting hollow portion 63a that can communicate with the through hollow portion 44 of the puncture portion 41.

[0059] One end side (the lower end side in the figure) of the connecting tube part 63 is formed so as to be insertable into the attachment part 43 and the puncture part 41 of the puncture part 22. A first locking part 65 is provided around the outer periphery of one end side of the connecting tube part 63, and is lockable with a first locked part 53 provided on the base 51 of the puncture part 41 of the puncture part 22. The first locking part 65 is formed as a male screw that can be threadedly engaged with the first locked part 53.

[0060] By threading and engaging this first locking portion 65 with the first locked portion 53 of the puncturing portion 41, the connecting hollow portion 63a of the connecting tube portion 63 and the through hollow portion 44 of the puncturing portion 41 are airtightly connected.

[0061] A connection portion 67 for connecting to another member is provided at the other end (upper end in the drawing) of the connecting tube portion 63. In this embodiment, the external tube 13 is connected to this connection portion 67.

[0062] The locking tube portion 64 is provided with an opening at one end (the lower side in the figure), and a second locking portion 66 is provided from the open end to the interior, which can be locked with the second locked portion 36 of the fixed part 21. The second locking portion 66 is formed as a female screw on the inner circumferential surface of the locking tube portion 64.

[0063] The first locking portion 65 and the second locking portion 66 can be screwed onto the first locked portion 53 of the puncture portion 41 and the second locked portion 36 of the fixed part 21 by rotating in the same direction.

[0064] The operating portion 62 is provided integrally with the mounting portion main body 61 so as to protrude laterally in opposite directions from the mounting portion main body 61 via an axis. The user grasps and operates the operating portion 62 when engaging the mounting portion main body 61 with the fixed part 21 and the mounting part.

[0065] To use the spout-equipped container 10 of this embodiment as described above, the fixed part 21 equipped with the puncture part 22 is fixed to a predetermined position on the container body 11, and the contents are placed in the storage section 17 to create a sealed container.

[0066] In this embodiment, to open the sealed container and discharge the contents, first, the attachment part 23 is attached to the container 10. The sealing portion 32 of the spout 20 maintains the sealed state.

[0067] The mounting part 23 may be attached to the fixed part 21 in advance in a prepared state, and the container may be distributed in this state. At this time, the flat operating part 62 may be aligned with the flat shape of the container body 11.

[0068] To attach the mounting part 23 to the fixed part 21 and the puncture part 22, as shown in Figure 9 (a), the first engaging portion 65 of the mounting part 23 is screwed into the first engaged portion 53 of the puncture part 41 of the puncture part 22 to engage it.

[0069] At the same time, or before or after this, before the first engaging portion 53 of the puncture portion 41 and the first engaging portion 65 of the mounting part 23 are completely screwed together, the second engaging portion 66 of the mounting part 23 is screwed onto and engaged with the second engaging portion 36 of the fixed part 21.

[0070] At this time, by simply rotating the mounting part 23 in one direction, both locking portions 65 and 66 can be screwed into the respective locked portions 53 and 36 and locked.

[0071] At this stage, the fragile portion 42 is not broken and maintains the state in which the puncture portion 41 is held to the main body portion 33 .

[0072] After the mounting part 23 is connected to the fixed part 21 and the puncturing part 22, as shown in Figure 9(b), when the mounting part 23 is further rotated, the first locking portion 65 of the mounting part 23 is completely screwed into the first locked portion 53 of the puncturing part 41. This airtightly connects the mounting part 23 and the puncturing part 41. At this time, the locking by screwing between the second locking portion 66 of the mounting part 23 and the second locked portion 36 of the fixed part 21 is only in the middle stage.

[0073] From this stage, if the second locking portion 66 of the mounting part 23 continues to be screwed into the second locked portion 36 of the fixed part 21, the puncturing part 22 will rotate together with the mounting part 23, causing the fragile portion 42 to break. This causes the puncturing part 41 and the attachment part 43 to separate.

[0074] 9(c), when the second locking portion 66 of the mounting part 23 continues to be screwed into the second locked portion 36 of the fixed part 21, the tip of the puncturing portion 41 integrated with the mounting part 23 punctures the sealing portion 32. This allows the inside and outside of the container to communicate with each other via the through hollow portion 44 of the puncturing portion 41 and the connecting hollow portion 63a of the mounting part 23, making it possible to open the spout 20.

[0075] As a result, as shown in FIG. 10, the contents contained in the container 10 can be discharged from the external tube 13 connected to the mounting portion main body 61 of the mounting part 23.

[0076] On the other hand, after the contents have been discharged from the container 10, the mounting part 23 is detached from the fixing part 21 and the puncturing part 22.

[0077] First, as shown in Figure 11 (a), when the puncturing portion 41 has punctured the sealing portion 32, the mounting part 23 is rotated in the opposite direction, that is, in the unscrewing direction, thereby releasing the screwed engagement between the second locking portion 66 of the mounting part 23 and the second locked portion 36 of the fixed part 21.

[0078] At this time, since the puncture section 41 is integrally connected to the attachment part 23, it rotates together with the attachment part 23 and moves in the backward direction, which is the axial direction.

[0079] 11(b), when the puncturing portion 41 moves to the lower end of the fitting portion 31a, the stoppered projection 54 provided on the base 51 of the rotating and moving puncturing portion 41 comes into contact with the stopper 47 provided on the mounting portion 43 in the rotational direction. This allows the mounting portion 43 to prevent the puncturing portion 41 from rotating together with the mounting part 23.

[0080] 11(c), the mounting part 23 rotates in the unscrewing direction relative to the puncturing part 41, and the locked state formed by the screwing between the first locking part 65 of the mounting part 23 and the first locked part 53 of the puncturing part 41 is released. As a result, the mounting part 23 detaches from the fixed part 21 and the puncturing part 22, with the puncturing part 41 remaining in the through-hole 31. In this state, the container 10 and the mounting part 23 can be disposed of separately.

[0081] According to the spout 20 of the spout-equipped container 10 described above, the fixing part 21 has a through hole 31 that penetrates between the inside and outside of the container 10, and the through hole 31 is closed by a sealing part 32 inside the container 10. The puncturing part 22 has a puncturing part 41 that can puncture the sealing part 32, and the puncturing part 41 is connected to an attachment part 43 via a fragile part 42. This puncturing part 22 is fixed by the attachment part 43 with the puncturing part 41 positioned within the through hole 31. Therefore, when using the spout 20, the puncturing part 41 can be operated by breaking the fragile part 42, and the through hole 31 can be opened by breaking the sealing part 32.

[0082] In this spout 20, the puncture part 22 is attached to the fixed part 21 by the attachment portion 43. Therefore, the spout 20 can be produced by separately manufacturing the fixed part 21 and the puncture part 22 and then integrating them. Therefore, a structure in which the puncture part 22 and the fixed part 21 are integrated can be easily constructed. Furthermore, by separately manufacturing the puncture part 22 and the fixed part 21, manufacturing restrictions on the shapes of the respective parts 21, 22 can be reduced, so there is a high degree of freedom in the shape of each part of the parts 21, 22. As a result, it is possible to easily manufacture various spouts 20 having a structure in which the puncture part 41 is supported by the fixed part 21 via the fragile portion 42.

[0083] In the spout 20 of the spouted container 10 of this embodiment, the attachment part 43 is housed inside the through hole 31 and is fitted into a fitting part 31a provided inside the through hole 31 of the fixed part 21, thereby being fixed so as not to be detached. Therefore, the attachment part 43 of the puncture part 22 can be reliably held inside the through hole 31 of the fixed part 21, and no external force is applied to it. This makes it possible to reliably prevent the puncture part 22 from detaching from the fixed part 21.

[0084] In the spout 20 of the spout-equipped container 10 of this embodiment, the puncturing portion 41 has a base 51 having an outer diameter larger than the maximum inner diameter of the attachment portion 43, and a protruding tubular portion 52 having an outer diameter smaller than the base 51 and having a tip portion 55 capable of puncturing the sealing portion 32, and the through hole 31 has a base hole 31b that is located closer to the interior of the container 10 than the fitting portion 31a and that movably accommodates the base 51, and a protruding hole 31c that is located closer to the interior of the container 10 than the base hole 31b and that movably accommodates the protruding tubular portion 52 but cannot accommodate the base 51.

[0085] Therefore, when puncturing portion 41 is housed in through-hole 31 and mounting portion 43 is fitted into fitting portion 31a, after fragile portion 42 is broken and mounting portion 43 and puncturing portion 41 are separated, movement of base 51 of puncturing portion 41 within through-hole 31 is restricted to between mounting portion 43 of fitting portion 31a and projection hole 31c. This makes it possible to reliably prevent puncturing portion 41 from detaching from fixed part 21 after spout 20 has been used.

[0086] In particular, in this embodiment, the entire mounting portion 43 is housed inside the through-hole 31 a with the puncture portion 41 of the puncture part 22 housed inside the through-hole 31 a in the attached state. Therefore, the entire puncture part 22 is disposed inside the fixed part 22, and no part of the puncture part 22 protrudes outward beyond the cylindrical protrusion 35 of the fixed part 22.

[0087] Therefore, no external force is applied to the puncture part 22 outside the fixing part 22. This makes it possible to reliably prevent the puncture part 22 from accidentally falling off or being damaged by an external force, or even damaging or puncturing the sealing portion 32, before the container 10 is used, for example, during transportation, storage, or preparation for use.

[0088] The spout 20 of the spouted container 10 of this embodiment is provided with an attachment part 23 having a first locking portion 65 that can be locked onto the puncture portion 41 and a second locking portion 66 that can be locked onto the fixed part 21. The first locking portion 65 and the second locking portion 66 can be screwed onto the puncture portion 41 and the fixed part 21 by rotating in the same direction.

[0089] Then, by screwing the first locking portion 65 and the second locking portion 66 together, the mounting part 23 is connected to the fixed part 21, and then by screwing and locking the second locking portion 66 together, the fragile portion 42 can be broken to separate the puncture portion 41 and the attachment portion 43, and the tip of the puncture portion 41, which is integrated with the mounting part 23, can puncture the sealing portion 32.

[0090] Therefore, by screwing and fitting the mounting part 23 to the puncture part 22 and the fixed part 21, the sealing part 32 can be easily opened and the spout 20 can be used. Therefore, the container 10 can be opened regardless of the user's method of use, making it easy to use.

[0091] Furthermore, the puncture part 22 is housed inside the fixed part 21, and the second locking part 66 is present inside the fixed part 21, so that only the first locking part 65 is visible from the outside of the spout 20. Therefore, the spout 20 can be formed to have the same appearance as a general spout that has one locking part on its outer periphery, and there is no sense of incongruity. Therefore, the user can intuitively operate it in the same way as a general spout.

[0092] In the spout 20 of the spout-equipped container 10 of this embodiment, in the process of rotating the mounting part 23 in the unscrewing direction to release the locked state of the second locking part 66 with the fixed part 21 by screwing it, the attachment part 43 prevents the puncture part 41 from rotating together with the mounting part 23, and the locked state between the first locking part 65 and the puncture part 41 is released, allowing the puncture part 41 to be retained within the through hole 31.

[0093] Therefore, after the spout 20 has been used, the puncture portion 41 can be held within the through-hole 31 of the fixing part 21. This reliably prevents the puncture portion 41 from being repeatedly used to open the sealing portion 32 of other spouts 20. Furthermore, the puncture portion 41 does not detach from the container body 11, and the container body 11 is not damaged from the inside by the puncture portion 41. Furthermore, because the puncture portion 41 does not detach from the container 10 to which the spout 20 is attached, the portion to which the contents are attached and the tip of the puncture portion 41 are not exposed to the outside of the container after the spout 20 has been used, which makes the spout 20 highly hygienic and safe.

[0094] In the spout 20 of the spouted container 10 of this embodiment, the tip of the puncturing portion 41 is positioned at a position corresponding to a preset puncturing position of the sealing portion 32, and by breaking the fragile portion 42 and allowing the puncturing portion 41, which is integrated with the attachment part 23, to move forward, the tip of the puncturing portion 41 can puncture the sealing portion 32 at the puncturing position. Therefore, the sealing portion 32 can be broken at a position that makes it easy to open, making the opening operation easier.

[0095] It should be noted that the above embodiment can be modified as appropriate within the scope of the present invention. For example, in the above embodiment, an example has been described in which the mounting part 23 is attached to the fixed part 21 and the puncture part 22 to open the sealing part 32 and discharge the contents. However, the structure of the present invention can be applied to a spout in which another member is attached to only one of the fixed part 21 and the puncture part 22, or even to a spout 20 in which no other member is attached, as long as the fragile part 42 of the puncture part 22 can be broken from the outside during use.

[0096] Furthermore, in the above embodiment, an example was described in which the external tube 13 was connected to the connection portion 67 of the connecting tube portion 63 of the mounting part 23, but this is not limited to this, and other components may be connected, or the mounting part 23 may be open without providing the connection portion 67.

[0097] Furthermore, although one example of the mounting part 23 has been given above, the form of the mounting part 23 is not limited in any way as long as it is a member having the first locking portion 65 and the second locking portion 66 .

[0098] DESCRIPTION OF SYMBOLS 10 Container with spout 11 Container body 13 External tube 15 Container wall 17 Storage section 20 Spout 21 Fixed part 22 Piercing part 23 Mounting part 31 Through hole 31a Fitting section 31b Base hole 31c Protrusion hole 31d Interlocked section 31e Receiving section 32 Sealing section 33 Main body section 34 Boat-shaped section 34a Inner end surface 35 Protrusion section 36 Second interlocked section 41 Piercing section 42 Fragile section 43 Mounting section 43a Protrusion 44 Hollow through section 45 Large diameter section 45a Interlocking section 46 Small diameter section 47 Stopper 51 Base section 52 Protruding tubular section 53 First interlocked section 54 Stopper interlocked section 55 Tip section 61 Mounting portion main body 62 Operation portion 63 Connecting tube portion 63a Connecting hollow portion 64 Locking tube portion 65 First locking portion 66 Second locking portion 67 Connection portion

Claims

1. A spout comprising: a fixed part that is fixed to a container and has a through hole that passes through the inside and outside of the container and a sealing part that closes the through hole on the inside of the container; and a puncture part that has a puncture part that can puncture the sealing part and an attachment part that is attached and fixed to the fixed part and connects the puncture part via a fragile part, wherein the puncture part is attached to the fixed part by the attachment part with the puncture part positioned within the through hole.

2. A spout as described in claim 1, characterized in that the mounting portion is housed inside the through hole and is fixed in an undetachable manner by fitting into a fitting portion provided inside the through hole of the fixing part.

3. The spout according to claim 2, characterized in that the puncturing portion has a base portion having an outer diameter larger than the maximum inner diameter of the attachment portion, and a protruding tubular portion having an outer diameter smaller than the outer diameter of the base and having a tip portion capable of puncturing the sealing portion, and the through hole has a base hole that is located more inward of the container than the fitting portion and movably accommodates the base, and a protruding hole that is located more inward of the container than the base hole and movably accommodates the protruding tubular portion but cannot accommodate the base.

4. The spout of claim 1, further comprising an attachment part detachably attached to the fixed part and the puncture part, wherein the attachment part has a first locking part that can be locked to the puncture part and a second locking part that can be locked to the fixed part, and wherein the spout is configured such that, when the first locking part is locked to connect the attachment part to the puncture part and the second locking part is locked to connect the attachment part to the fixed part, the second locking part is further locked to break the fragile part and separate the puncture part and the attachment part, and the tip of the puncture part that is integrated with the attachment part punctures the sealing part.

5. The spout described in claim 4, characterized in that the first locking portion and the second locking portion can be screwed onto the puncture portion and the fixed part by rotating them in the same direction, and when the first locking portion is screwed to connect the mounting part to the puncture portion and the second locking portion is screwed to connect the mounting part to the fixed part, the second locking portion is further screwed together to break the fragile portion and separate the puncture portion and the attachment portion, and the tip of the puncture portion integrated with the mounting part is rotated to puncture the sealing portion.

6. A spout as described in claim 4, characterized in that in the process of releasing the engagement between the second engagement portion and the fixed part, the attachment portion can release the engagement between the first engagement portion and the puncture portion, allowing the puncture portion to remain within the through hole.

7. A spout as described in claim 5, characterized in that, in the process of rotating the mounting part in the unscrewing direction to release the screwed state of the second locking part from the fixed part, the attachment part prevents the puncture part from rotating together with the mounting part, thereby releasing the screwed state between the first locking part and the puncture part and allowing the puncture part to remain within the through hole.

8. The spout according to claim 1, characterized in that the tip of the puncture portion is positioned at a position corresponding to a predetermined puncture position of the sealing portion, and the tip of the puncture portion can puncture the sealing portion at the puncture position by breaking the fragile portion and moving forward as the puncture portion becomes integrated with the mounting part.

9. A spouted container, characterized in that it is provided with a spout according to any one of claims 1 to 8.

Images