Spout and container with spout

Abstract

To provide a spout that can be open readily and reliably without depending on usage of a user regarding the opening property of a container, and to provide a container using the spout.SOLUTION: A spout includes a stationary part 21 and a fitting part 22. The stationary part 21 includes: a body part 24 provided with a through-hole 23 penetrating from the outside through the inside of a container 10; a sealing part 25 for blocking the through-hole 23 inside the container 10; and a puncture part 26 disposed inside the through-hole 23 so as to be capable of puncturing the sealing part 25 and held to the body part 24 via a fragile part 43. The fitting part 22 includes: a first locking part 31 capable of being locked to the puncture part 26; and a second locking part 32 capable of being locked to the body part 24. The spout is configured to lock the first locking part 31 to integrate the fitting part 22 with the puncture part 26 and, in a step of locking the second locking part 32, to make the puncture part 26 which is integrated with the fitting part 22 advance to rupture the fragile part 43 and to puncture the sealing part 25 with a tip of the puncture part 26.SELECTED DRAWING: Figure 2

Description

Technical Field to Which the Invention Belongs

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

Background Art

[0002] Conventionally, various spouts are attached to containers for containing a fluidic content. In the spout, a through-passage for discharging the content is closed inside the container by a sealing portion or the like, and many spouts are configured to open the sealing portion inside the container during use. In containers used by connecting an external tube or a syringe for connecting to a gastric tube to the spout, there are those in which a separate member such as a connector is attached to the spout to open the sealing portion when connecting the external tube or the syringe. In the case of a container directly connected to a gastric tube via an external tube, the separate member such as a connector meets the conditions as a general medical device.

[0003] For example, in Patent Document 1 below, a cylindrical portion and a piercing portion that are inserted into the container by piercing a film that seals a port portion on one end side are provided, and a connecting portion to which another instrument such as a syringe or a tube is connected is provided on the other end side. A connector has been proposed. In this connector, by piercing and rotating the piercing portion, the film that seals the port portion is cut to form an opening, and the cylindrical portion is inserted into the opening, and the content in the container can be discharged from the tube. Such a connector of Patent Document 1 is used by being attached to the spout when discharging the content in the container, but it is a separate member from the spout and may be removed after use and repeatedly used for other containers. By being repeatedly used, the tip shape of the piercing portion deteriorates, so that when piercing the piercing portion, deformation or elongation occurs in the sealing portion, making it difficult to pierce, and the opening property may also deteriorate.

[0004] Furthermore, Patent Document 2 below proposes a medical port in which a thin film is bonded to the port body to block outflow from a through hole, and a connecting member connected via a bridge is configured to pierce the thin film. In this medical port, when connecting a fluid delivery tube, a female connector attached to the end of the tube is used for connection, and by pushing the connecting member with the female connector, the thin film can be punctured and opened with the tip of the connecting member. In this Patent Document 2 as well, in order to connect an external tube to the spout, it was necessary to open the sealed part using a separate female connector. [Prior art documents] [Patent Documents]

[0005] [Patent Document 1] Patent No. 6527631 [Patent Document 2] Patent No. 5920339 [Overview of the project] [Problems that the invention aims to solve]

[0006] However, the spout described in Patent Document 1 requires the use of a separate connector to open the spout or connect an external tube, and repeated use of the connector by the user can make it difficult to open the seal. Therefore, there was a problem in that the ease of opening the spout depended on the user's usage, such as the ease of opening being reduced depending on how the user used it.

[0007] Furthermore, even with the spout described in Patent Document 2, a separate female connector had to be used to connect and open the external tube, and the user had to puncture the thin film by directly pressing the connecting member with the female connector during the tube connection process. As a result, it was difficult to stabilize the position and orientation in which the user pressed with the female connector to puncture the connecting member, and there was a problem that the opening ability of the spout depended on the user's method of use.

[0008] Therefore, the object of the present invention is to provide a spout that can be easily and reliably opened, regardless of how the container is used by the user, and a container using that spout. [Means for solving the problem]

[0009] The spout of the present invention, which solves the above problems, comprises a fixing part fixed to a container and a mounting part that can be attached to the fixing part, wherein the fixing part has a main body portion provided with a through hole that penetrates between the inside and outside of the container, a sealing part that closes the through hole on the inside of the container, and a part that is positioned inside the through hole so as to be able to puncture the sealing part and is held in the main body portion via a fragile part Cylindrical It has a puncture site, and the mounting parts are, A cylindrical mounting body, It has a first locking part that can be locked to the puncture site and a second locking part that can be locked to the main body, Mounting parts The first locking part puncture site By locking it in place, the mounting part becomes integrated with the puncture site, and further Mounting parts The second locking part Main body During the locking process, it becomes integrated with the mounting parts. done The puncture site is advanced to rupture the weak area, and the tip of the puncture site is used to puncture the sealed area. With the mounting parts locked and integrated with the main body, the contents of the container can flow through the puncture site and be discharged to the outside from the mounting part body. It is characterized by being composed of [something].

[0010] In the spout of the present invention, the tip of the puncture portion is positioned at a location corresponding to a pre-set puncture position in the sealing portion, and the puncture portion is held via a fragile portion, and the tip of the puncture portion, having broken through the fragile portion and advanced, is capable of puncturing the sealing portion at the puncture position.

[0011] In the spout of the present invention, the second locking portion is preferably configured to be screwed into the main body, thereby rotating and advancing the tip blade of the puncture portion to puncture the sealing portion. In that case, the first locking portion can be screwed into the puncture portion by rotating coaxially and in the same direction as the second locking portion, and it is preferable that the second locking portion begins to screw into the main body portion before the first locking portion, which is screwed into the puncture portion, completes the screwing process.

[0012] The spout of the present invention may include a first detachment prevention part that, by completing the locking of the first locking part, causes the mounting part and the puncture part to be fitted together in a way that prevents them from being separated. The device may also include a second detachment prevention part that, when the second locking part is locked, causes the mounting part and the main body to be fitted together in a way that prevents them from being separated. Furthermore, the mounting parts may be equipped with a connection mechanism that allows them to be connected to an end connection part provided on an external tube or the like.

[0013] In the spout of the present invention, the opening periphery on the inside of the through hole has a concave shape that is recessed in the axial direction of the through hole, and the sealing portion is made of a sheet material joined to the opening periphery, and is configured to be cut by the tip blade of the puncture portion when the puncture portion rotates.

[0014] The spouted container of the present invention, which solves the above problems, is characterized by having a spout as described above. [Effects of the Invention]

[0015] According to the spout and spouted container of the present invention, the through hole of the fixing part is closed by the sealing part, and a puncture part that can puncture the sealing part is held in the through hole via a fragile part, and the mounting 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 main body of the fixing part. Therefore, when attaching the mounting part to the fixing part, the puncture part held in a predetermined position in the through hole by the fragile part can be integrated with the mounting part by the first locking part, and in the process of locking the second locking part, the puncture part is advanced together with the mounting part, the fragile part is broken and the sealing part can be punctured with the puncture part.

[0016] When puncturing the sealing portion, it is possible to press against the sealing portion while keeping the posture and position of the puncturing portion stable. Moreover, since the puncturing portion is advanced by locking the attachment part to the main body portion of the fixing part, the puncturing portion can be pressed against the sealing portion at a preset position and orientation, and the sealing portion can be punctured with sufficient force by the puncturing portion to open the spout. Even a sealing portion having high sealing performance and being difficult to puncture can be punctured, and the spout can be surely opened.

[0017] Furthermore, when attaching the attachment part to the fixing part, it is only necessary to lock the first locking portion and the second locking portion, and the spout can be easily opened without the user performing a special opening operation. As a result, according to the present invention, it is possible to provide a spout that can be easily and surely opened without depending on the user's usage method for the opening property of the container.

[0018] In the spout and the container with a spout of the present invention, if the tip of the puncturing portion is arranged at a position corresponding to a preset puncturing position of the sealing portion and the puncturing portion is held via a fragile portion, and the tip of the puncturing portion that has advanced by breaking the fragile portion can puncture the sealing portion at the puncturing position, the tip of the puncturing portion can puncture the most easily punctured puncturing position in the sealing portion. Therefore, the sealing portion can be surely opened by the puncturing portion, and the certainty of the operation can be improved.

[0019] In the spout and the container with a spout of the present invention, if the second locking portion is screwed into the main body portion so that the tip blade portion of the puncturing portion can be advanced while rotating to puncture the sealing portion, by screwing the second locking portion of the attachment part into the main body portion, the tip blade portion of the puncturing portion can be advanced while rotating at a predetermined position. Therefore, it is possible to advance while keeping the posture and position of the puncturing portion more stable, and the sealing portion can be easily punctured by cutting it into a predetermined arc shape by the tip blade portion of the puncturing portion. Moreover, since the axial movement distance of the tip blade portion of the puncturing portion can be kept small and the circumferential movement distance can be ensured to be long, the sealing portion can be surely cut by tension, shearing, tearing, etc. by the tip blade portion of the puncturing portion in contact with the sealing portion, and the spout can be easily and surely opened.

[0020] Further, if the first locking portion can be screwed with the puncturing portion by rotating coaxially and in the same direction as the second locking portion, and the second locking portion is configured to start screwing with the main body portion before the first locking portion screwed to the puncturing portion completes the screwing, when attaching the attachment part to the fixing part, the second locking portion can be screwed to the main body portion before the puncturing portion starts rotating and advancing together with the attachment part and breaking the fragile part. Therefore, when the fragile part is broken by the attachment part, the attachment part integrated with the puncturing part can be stably supported by the main body part, and it is possible to advance while rotating the tip of the puncturing part stably. Therefore, the sealing part can be opened more stably.

[0021] In the spout and the container with a spout of the present invention, if a first detachment prevention portion that makes the attachment part and the puncturing part fit together inseparably by completing the locking of the first locking portion is provided, the attachment part and the puncturing part can be surely integrated, and in this state, the attachment part does not detach from the puncturing part. Therefore, during operation or use, the attachment part and the puncturing part do not come off or leak. Also, if a second detachment prevention portion that makes the attachment part and the main body part fit together inseparably by completing the locking of the second locking portion is provided, after the sealing part is punctured by the tip blade portion of the puncturing part and the spout is opened, the attachment part and the main body part of the fixing part are joined inseparably, and the fixing part and the attachment part do not detach separately. Therefore, the attachment part does not come off from the fixing part, and misuse and reuse can be prevented. It is possible to surely prevent the attachment part from being repeatedly used for other containers.

[0022] In the spout and the container with a spout of the present invention, if the attachment part has a connection mechanism that can be connected to an end connection part provided on an external tube or the like, the operation of connecting the external tube to the spout and the operation of integrating the puncturing part with the attachment part and puncturing the sealing part with the puncturing part can be performed separately, and the user can arbitrarily select each operation according to the usage situation, which is convenient to use.

[0023] In the spout and spouted container of the present invention, if the opening periphery on the inside of the through hole has a concave shape that is recessed in the axial direction of the through hole, and the sealing portion is made of a sheet material joined to the opening periphery, and is configured to be cut by the tip blade of the puncture portion when the puncture portion is rotated, then because the sealing portion made of sheet material positioned near the opening periphery of the through hole has a concave shape, when the tip blade of the puncture portion is rotated and pressed against it, the sheet material is less likely to stretch, and the sealing portion near the opening periphery can be reliably cut by the tip blade.

[0024] Furthermore, since the puncture portion is positioned in a predetermined location within the through-hole by the weaker portion, the tip blade of the puncture portion can be pre-positioned to a location that facilitates cutting against the sealing portion made of a concave sheet material, and it is possible to reliably cut by rotating the tip blade of the puncture portion. For this reason, even sealing portions made of sheet material that have high sealing properties and are difficult to puncture can be punctured more reliably and the spout can be opened. [Brief explanation of the drawing]

[0025] [Figure 1] This is a perspective view of a spout according to an embodiment of the present invention. [Figure 2] This is a longitudinal cross-sectional view of a spout according to an embodiment of the present invention. [Figure 3] This is a perspective view of a spout fixing part according to an embodiment of the present invention. [Figure 4] This is a longitudinal cross-sectional view of a spout fixing part according to an embodiment of the present invention. [Figure 5] This is a perspective view showing the tip of the puncture portion of the spout according to an embodiment of the present invention. [Figure 6] This is a longitudinal cross-sectional view showing the tip of the puncture portion of a spout according to an embodiment of the present invention. [Figure 7] This is a plan view showing a vulnerable portion of the spout according to an embodiment of the present invention, and is a view of the fixing part from the inside of the container with the sealing portion excluded. [Figure 8] This is a perspective view of a spout mounting part according to an embodiment of the present invention. [Figure 9]The mounting parts for a spout according to an embodiment of the present invention are shown, where (a) is a longitudinal cross-sectional view and (b) is a partially enlarged longitudinal cross-sectional view. [Figure 10] This is a side view of a spouted container according to an embodiment of the present invention, showing the state before use. [Figure 11] The images show the spout before opening according to an embodiment of the present invention, with (a) being a side view and (b) being a longitudinal cross-sectional view. [Figure 12] This figure illustrates the operation of puncturing the sealing portion of the spout with the puncture portion according to an embodiment of the present invention. [Figure 13] The images show the spout after opening according to an embodiment of the present invention, with (a) being a side view and (b) being a longitudinal cross-sectional view. [Figure 14] This is a side view of a spouted container according to an embodiment of the present invention, showing it in use. [Modes for carrying out the invention]

[0026] Embodiments of the present invention will be described in detail below with reference to the figures. The spouted container 10, as shown in Figure 10, for example, has a spout 20 fixed to the container body 11, and contains and seals the contents. The spout 20 has a structure that allows the contents to be discharged by connecting an external tube 13 when in use. The contents are fluid. The spouted container 10 of this embodiment is an example of a container that contains a semi-solid nutritional supplement and is directly connected to a gastrostomy via an external tube. The container can be used by connecting an external tube to the spout 20 and dispensing the contents.

[0027] The container body 11 has a storage section 15 formed by a resin container wall 17. For example, the storage section 15 is formed by sealing the perimeter with a resin sheet. The container wall 17 is made of a material that can minimize the permeation of components that cause deterioration of the contents. In this embodiment, the container wall 17 is laminated with aluminum layers or the like to reduce oxygen permeability.

[0028] As shown in Figures 1 and 2, the spout 20 includes a fixing part 21 that is fixed to the container body 11 and a mounting part 22 that can be attached to the fixing part 21. As shown in Figures 3 and 4, the fixing part 21 comprises a main body portion 24 provided with a through hole 23, a sealing portion 25 that closes the through hole 23, and a puncture portion 26 positioned inside the through hole 23 that can open the sealing portion 25. The through-hole 23 is formed in the center of the main body 24 with a substantially constant circular cross-section so as to penetrate from the inside to the outside of the container 10.

[0029] The main body 24 comprises a boat-shaped section 27 fixed to the container body 11 and a protruding section 28 extending outward from the boat-shaped section 27, with through holes 23 formed through the boat-shaped section 27 and the protruding section 28. The main body 24 is integrally molded from a resin molded body that can be welded to the resin of the container wall 17. The boat-shaped section 27 is positioned between opposing container walls 17 of the container body 11 and is fixed in a liquid-tight manner. The inner end face 27a, positioned on the inside of the container, has multiple surfaces inclined in opposite directions on both sides of the bent portion, and in a side view, it has a concave shape that is roughly V-shaped and recessed in the axial direction of the through hole 23. As the through holes 23 are opened at the intersections of multiple surfaces of the inner end face 27a, the inner opening periphery 23a of the through holes 23 has a roughly V-shaped concave form that is recessed in the axial direction of the through holes 23, similar to the inner end face 27a.

[0030] The protruding portion 28 is provided projecting in a substantially cylindrical shape from the outer end face 27b of the boat shape 27 toward the outside of the container. The protruding portion 28 has a second locking portion 42 into which the second locking portion 32 of the mounting part 22 (described later) is locked, and a stopper 33 into which the end of the locked mounting part 22 abuts. The second locking portion 42 is formed to be screwable with the second locking portion 32 of the mounting part 22. Multiple arc-shaped second inclined recesses 34b are provided around the axis of the outer circumferential edge of the stopper 33, which is the contact point with the end of the mounting part 22. Each second inclined recess 34b is formed such that the amount of recess gradually increases along one circumferential direction which is the screwing direction, and multiple second inclined projections 35b provided on the end of the mounting part 22, which will be described later, can be fitted into it.

[0031] The sealing portion 25 closes the through hole 23 of the main body portion 24 on the inside of the container and consists of a sheet material that covers substantially the entire inner end face 27a of the main body portion 24 and is continuously and airtightly joined to the entire circumference of the opening periphery 23a of the through hole 23 by welding or the like. The sheet material of the sealing portion 25 is made of a material that can reduce the permeation of components that cause deterioration of the contents as much as possible and can be welded to the main body portion 24. In this embodiment, a sheet material is used which is laminated a resin layer made of the same resin as the main body portion 24 and an aluminum layer with low oxygen permeability, and preferably a double sealant film is used in which the resin layer is laminated on both sides of the aluminum layer. Since the inner end face 27a of the main body portion 24 and the opening periphery 23a of the through hole 23 have a roughly V-shaped concave form, the sheet material of the sealing portion 25 is joined to the inner end face 27a and the opening periphery 23a of the through hole 23 in a roughly V-shaped bend corresponding to this shape. In this embodiment, the top of the roughly V-shaped bend of the sealing portion 25 is set as the puncture position 25a that is punctured when opening with the puncture portion 26.

[0032] A puncture portion 26 capable of puncturing the sealing portion 25 is positioned within the through hole 23 of the main body portion 24, and the puncture portion 26 is further held to the main body portion 24 via the fragile portion 43. The puncture portion 26 has a roughly cylindrical shape, and its outer circumferential surface is positioned in close proximity to or sliding contact with the inner circumferential surface of the through hole 23 around its entire circumference. The puncture portion 26 is formed to be longer than the through hole 23, and its rear end protrudes behind the projection 28 of the main body portion 24. The rear end is provided with a first locking portion 41 into which the first locking portion 31 of the mounting part 22 (described later) is locked, and the rear edge is provided with a plurality of arc-shaped first inclined projections 35a whose protrusion amount gradually increases along one circumferential direction which is the screwing direction. The first locking portion 41 is formed to be screwable with the first locking portion 31 of the mounting part 22.

[0033] As shown in Figures 5 and 6, the tip of the puncture portion 26 is provided with a forward-projecting tip blade portion 44. The tip blade portion 44 is capable of puncturing the sealing portion 25, and is provided with a piercing portion 44a at its top, as well as a cutting blade 44b that can cut the puncture portion 26 by rotating the puncture portion 26 around its axis. The cutting blade 44b is positioned in a direction that causes the second locking portion 32 of the mounting part 22 to be screwed into the second locking portion 42 of the fixing part 21. The tip blade portion 44 of the puncture portion 26 is preferably positioned as close as possible to the inner circumferential surface of the through hole 26, and the tip blade portion 44 is positioned so that it can cut the sealing portion 25 along the opening periphery 23a near the opening periphery 23a on the inside of the container of the through hole 23 as the puncture portion 26 rotates within the through hole 26.

[0034] The fragile portion 43 is the part that holds the puncture portion 26 to the main body portion 24 in a breakable manner. In this embodiment, as shown in Figures 4 and 7, at an intermediate position in the longitudinal direction of the puncture portion 26, a part of the outer circumference, specifically a pair of portions facing each other in the diametrical direction, and the inner surface of the through hole 23 are connected by resin to the extent that they can be easily broken by the force applied when operating the mounting part 22, as described later. In this embodiment, the puncture portion 26 and the fragile portion 43 are integrally molded from the same resin as the main body portion 24, for example, from PP or PE. Furthermore, since the puncture portion 26 is integrally connected to the main body portion 24 by the fragile portion 43, the tip blade portion 44 of the puncture portion 26 is positioned at a location corresponding to the predetermined puncture position 25a of the sealing portion 25. Specifically, immediately after the fragile portion 43 breaks as described later, the tip blade portion 44 of the puncture portion 26 is held in a position where it can puncture the puncture position 25a, which is set near the opening periphery 23a of the through hole 23 and is the top of the sealing portion 25 which is bent in a roughly V-shape and has a concave shape.

[0035] As shown in Figures 2, 8, and 9(a)(b), the mounting part 22 comprises a mounting body 37 and a flat-shaped operating part 45 connected to the side circumference of the mounting body 37. The mounting part body 37 is formed in a generally cylindrical shape, and at one axial end there is a mounting part 30 for connecting to the main body 24 of the fixing part 21 and a connecting part 40 for connecting to the puncture part 26 of the fixing part 21, and at the other end there is a connection mechanism 38 for connecting to the outer tube 13. The connecting portion 40 includes a first locking portion 31 that can be locked to a first locking portion 41 provided on the rear end side of the puncture portion 26, and a rear end support portion 39 that connects and supports the rear end side of the puncture portion 26.

[0036] The first locking portion 31 is formed to be screwable with the first locked portion 41 of the puncture portion 26. The rear end support portion 39 is configured to support the puncture portion 26 by axially contacting the rear end of the puncture portion 26 when the first locking portion 31 has been screwed into the first locked portion 41, thereby integrating the mounting part 22 with the puncture portion 26. By integrating the mounting part 22 with the puncture portion 26 via the first locking portion 31, the puncture portion 26 can operate together with the mounting part 22 when the mounting part 22 is operated by the operating portion 45.

[0037] The rear end support portion 39 has an annular projection 46 that is inserted into and connected to the opening at the rear end of the puncture portion 26, and a plurality of first inclined recesses 34a provided circumferentially on the outer surface of the annular projection 46. Each first inclined recess 34a is formed such that the amount of recess gradually increases along one circumferential direction which is the screwing direction, and is able to fit with a first inclined projection 35a provided on the rear end edge of the puncture portion 26. The multiple first inclined recesses 34a and the multiple first inclined projections 35a on the rear edge of the puncture portion 26 constitute a first detachment prevention portion 36a that, when the first locking portion 31 of the mounting part 22 is fully screwed into the first locking portion 41 of the puncture portion 26, engages with each other in a way that prevents detachment as it rotates, thereby preventing detachment between the mounting part 22 and the puncture portion 26.

[0038] The end of the mounting portion 30 on the fixing part 21 side is provided with a second locking portion 32 that can be locked to a second locking portion 42 provided on a protruding portion 28 of the main body portion 24 of the fixing part 21. The second locking portion 32 is formed with a larger diameter than the first locking portion 31 and has a shape that allows it to be screwed into the second locking portion 42 of the protruding portion 28 of the fixing part 21. Furthermore, the first locking portion 31 and the second locking portion 32 are formed coaxially with the same lead and can be screwed into each other in the same rotational direction. In this embodiment, the relative positions of the first locking portion 31 and the second locking portion 32 are set within a predetermined range, and the second locking portion 32 is configured to begin screwing into the main body portion 24 before the first locking portion 31 begins and completes screwing into the first locking portion 41 of the puncture portion 26.

[0039] Multiple arc-shaped second inclined projections 35b are provided around the axis of the mounting part body 37 on the side facing the fixing part 21, where the first locking portion 31 and the second locking portion 32 are provided. Each second inclined projection 35b is formed such that the amount of protrusion gradually increases along one circumferential direction which is the screwing direction. The multiple second inclined projections 35b, when the second locking portion 32 of the mounting part 22 is fully screwed into the second locked portion 42 provided on the protruding portion 28 of the fixing part 21, irremovably fit into multiple second inclined recesses 34b provided on the stopper 33 of the fixing part 21 as it rotates, thereby forming a second detachment prevention portion 36b that prevents the main body 24 of the fixing part 21 from separating from the mounting part 22.

[0040] The connection mechanism 38 at the rear end of the mounting body 37 is formed to be connectable to the end connection portion 13a provided on the outer tube 13. In this embodiment, the connection mechanism 38 of the mounting body and the end connection portion 13a of the outer tube 13 are configured as small-diameter connectors in accordance with ISO 80369-3, and the male connector consisting of the end connection portion 13a of the outer tube 13 is connected to the female connector consisting of the connection mechanism 38 of the mounting body 37.

[0041] To use the spouted container 10 of this embodiment as described above, first, as shown in Figure 10, the fixing part 21 is fixed to the container body 11, and the container 10, which is sealed with contents in the storage section 15, is fitted with the mounting part 22. At this time, the sealing portion 25 of the spout 20 is maintained in a sealed state. Alternatively, the mounting part 22 may be attached to the fixing part 21 in advance, and the product can be distributed in this state.

[0042] To attach the mounting part 22 to the fixing part 21, as shown in Figures 11(a) and (b), the first locking part 31 of the mounting part 22 is screwed into the first locking part 41 of the puncture part 26. By completely screwing it in, the first detachment prevention part 36a connects the mounting part 22 and the puncture part 26 in a way that prevents them from detaching. Specifically, the first inclined projections 35a, which are provided in multiple circumferential directions on the end of the puncture part 26, are fitted into the first inclined recess 34a provided on the rear end support part 39 of the mounting part 22. At this time, the fragile part 43 is not broken and the puncture part 26 is held in place by the main body part 24. This integrates the mounting part 22 with the puncture section 26, preparing it for use. At this time, the flat-shaped operating section 45 may be aligned with the flat shape of the container body 11.

[0043] In this state, by gripping the operating part 45 and rotating the mounting part 22 relative to the fixing part 21, the second locking part 32 of the mounting part 22 is partially screwed into the second locking part 42 of the fixing part 21. If the mounting part 22 is attached to the fixing part 21 in advance and prepared, it is also possible to fully screw the first locking part 31 of the mounting part 22 into the first locking part 41 of the puncture part 26, while leaving the second locking part 32 of the mounting part 22 partially screwed into the second locking part 42 of the fixing part 21.

[0044] In order for the user to discharge the contents of the container from this state, the user starts rotating the mounting part 22. Then, as the second locking part 32 of the mounting part 22 screws further into the second locked part 42 and locks in place, the puncture part 26, which is integrated with the mounting part 22, is displaced in a direction that rotates and moves forward together with the mounting part 22. As a result, a shear force acts on the fragile part 43 that holds the puncture part 26 to the main body part 24, and the fragile part 43 breaks.

[0045] Subsequently, when the user further rotates the mounting part 22, the puncture part 26 rotates and moves forward together with the mounting part 22 as it further screws and locks the second locking part 32 onto the second locked part 42. As shown in Figure 12, the tip blade portion 44 of the puncture portion 26 rotates and advances axially, so that at the puncture position 25a near the opening periphery 23a of the through hole 23, the piercing portion 44a pierces the sealing portion 25, and the cutting blade 44b is moved in the rotational direction to cut the sealing portion 25 along the opening periphery 23a. At this time, the tip blade portion 44, which has a piercing portion 44a and a cutting blade 44b, moves forward in the axial direction of the puncture portion 26 while rotating, so that the tip blade portion 44 comes into contact with the sealing portion 25 and catches on the film of the sealing portion 25, and then the tip blade portion 44 moves further in the circumferential direction, so that the film can be pulled, sheared or torn, and the sealing portion 25 can be reliably cut into an arc shape.

[0046] Then, as shown in Figures 13(a) and 13(b), when the operating part 45 of the mounting part 22 is rotated sufficiently relative to the fixing part 21, and the mounting part 22 is fully screwed onto the fixing part 21, the puncture part 26 protrudes from the through hole 23 into the inside of the container, and the tip of the puncture part 26 can be opened sufficiently into the inside of the container, thereby opening the sealing part 25. In this case, the sealing portion 25 may be cut all the way around the opening edge of the through hole 23 by rotating the puncture portion 26 one or more times, but preferably the sealing portion 25 is cut by rotating it by half a turn or more but less than one turn, more preferably by rotating it by 270 degrees or more but less than 360 degrees. If the angle of rotation and cutting is small, the sealing portion 25 may not be opened sufficiently, which may reduce the fluidity when discharging the contents. On the other hand, if the cutting is done by rotating more than 360 degrees, the cut pieces may separate from the sealing portion 25 and become mixed with the contents, making it difficult to use when discharging the contents. Furthermore, in the second detachment prevention section 36b, the second inclined recess 34b provided on the stopper 33 of the fixing part 21 and the second inclined projection 35b provided on the mounting part body 37 of the mounting part 22 engage as the part rotates. As a result, when the tip of the puncture section 26 punctures the sealing section 25 and the seal is opened, the reverse rotation of the main body 24 and the mounting part 22 is prevented, they become one unit, and the open state is maintained.

[0047] As a result, as shown in Figure 14, the contents contained in the container body 11 can be discharged from the external tube 13, to which the end connection part 13a is connected to the connection mechanism 38 of the mounting part body 37 of the mounting part 22. The external tube 13 only needs to be connected to the connection mechanism 38 of the mounting part 22 before the contents are discharged, for example, before the sealing part 25 is opened, or it may be connected to the connection mechanism 38 of the mounting part 22 before the mounting part 22 is attached to the fixing part 21. When discharging the contents, the first locking portion 31 and the rear end support portion 39 of the mounting part 22 are liquid-tightly connected to the rear end side of the puncture portion 26, so that the contents flowing inside the puncture portion 26 do not leak out to the outer circumference of the puncture portion 26. In addition, since the second locking portion 32 of the mounting part 22 is liquid-tightly connected to the second locked portion 42 of the fixing part 21, the contents inside the through hole 23 do not leak out to the outside of the spout 20.

[0048] As described above, the spout 20 of this embodiment has a through hole 23 of the fixing part 21 that is closed by a sealing part 25, and a puncture part 26 that can puncture the sealing part 25 is held in the through hole 23 via a fragile part 43, and the mounting part 22 has a first locking part 31 that can be locked to the puncture part 26 and a second locking part 32 that can be locked to the main body part 24 of the fixing part 21. Therefore, when attaching the mounting part 22 to the fixing part 21, the puncture portion, which is held in a predetermined position within the through hole by the weak portion, can be integrated with the mounting part 22 by the first locking portion 31, and by locking the second locking portion 32, the puncture portion 26 can be advanced together with the mounting part 22, breaking the weak portion 43 and allowing the sealing portion 25 to be punctured by the puncture portion 26.

[0049] This allows the puncture part 26 to be pressed against the sealing part 25 while maintaining a stable posture and position when puncturing the sealing part 25. Furthermore, by locking the mounting part 22 to the main body part 24 of the fixing part 21, the puncture part 26 is advanced, allowing the puncture part 26 to be pressed against the sealing part 25 at a preset position and orientation, and enabling the puncture part 26 to puncture the sealing part 25 with sufficient force to open the spout 20. Even a sealing part 25 that has high sealing properties and is difficult to puncture can be punctured, and the spout 20 can be reliably opened.

[0050] Furthermore, when attaching the mounting part 22 to the fixing part 21, the first locking part 31 and the second locking part 32 are simply locked, allowing the user to easily open the spout 20 without performing any special opening operation. As a result, the spout 20 of this embodiment allows the container to be opened easily and reliably, regardless of how the user uses it.

[0051] Furthermore, in the spout 20 of this embodiment, the puncture portion 26 is held via the fragile portion 43 with its tip positioned at a location corresponding to a pre-set puncture position 25a in the sealing portion 25, and the tip of the puncture portion 26, having broken through the fragile portion 43 and advanced, is configured to puncture the sealing portion 25 at the puncture position 25a. Therefore, the tip of the puncture part 26 can puncture the most easily punctured puncture position 25a within the sealed portion 25. As a result, the sealed portion 25 can be reliably opened by the puncture part 26, improving the reliability of the operation.

[0052] Furthermore, in the spout 20 of this embodiment, the second locking portion 32 is configured to screw into the main body portion 24, thereby rotating and advancing the tip blade portion 44 of the puncture portion 26 to puncture the sealing portion 25. Therefore, by screwing the second locking portion 32 of the mounting part 22 into the main body portion 24, the tip blade portion 44 of the puncture portion 26 can be rotated and advanced at a predetermined position. As a result, the posture and position of the puncture portion 26 can be advanced while being kept more stable, and the sealing portion 25 can be easily punctured by cutting it into a predetermined arc shape with the tip blade portion 44 of the puncture portion 26. Furthermore, instead of simply moving the tip blade 44 of the puncture section 26 linearly in the axial direction toward the inside of the container to puncture, the tip blade 44 of the puncture section 26 is moved forward while rotating, thus minimizing the axial movement distance of the tip blade 44 of the puncture section 26 and ensuring a longer circumferential movement distance. As a result, the tip blade 44 of the puncture section 26, upon contact with the sealing section 25, can reliably cut the sealing section 25 by pulling, shearing, tearing, etc., allowing the spout to be opened easily and reliably.

[0053] Furthermore, in the spout 20 of this embodiment, the first locking portion 31 can be screwed into the puncture portion 26 by rotating coaxially and in the same direction as the second locking portion 32, and the second locking portion 32 is configured to begin screwing into the main body portion 24 before the first locking portion 31, which is screwed into the puncture portion 26, completes the screwing process. Therefore, by simply rotating the mounting part 22 relative to the fixing part 21, the mounting part 22 can be screwed into the puncture portion 26 and simultaneously screwed into the main body portion 24 of the fixing part 21. Furthermore, when attaching the mounting part 22 to the fixing part 21, the puncture part 26 becomes completely integrated with the mounting part 22, so that the puncture part 26 begins to rotate and advance together with the mounting part 22 and breaks the fragile part 43, the second locking part 32 can be screwed into the main body part 24. As a result, when the mounting part 22 breaks the fragile part 43, the mounting part 22 integrated with the puncture part 26 can be stably supported by the main body part 24, and the tip of the puncture part 26 can be rotated and advanced stably. This allows the sealing part 25 to be opened more stably and improves operability during opening.

[0054] Furthermore, the spout 20 of this embodiment is equipped with a first detachment prevention part 36a that, when the first locking part 31 is locked, securely fits the mounting part 22 and the puncture part 26 together, preventing them from detaching. As a result, the mounting part 22 and the puncture part 26 can be reliably integrated, and the mounting part 22 will not detach from the puncture part 26. This reliably prevents the mounting part 22 and the puncture part 26 from coming apart or leaking during operation or use. Furthermore, the spout 20 is equipped with a second detachment prevention part 36b that, by completing the locking of the second locking part 32, irremoves the mounting part 22 and the main body part 24. Therefore, after the mounting part 22 is fully attached to the fixing part 21 and the sealing part 25 is punctured by the tip blade 44 of the puncture part 26 to open the spout 20, the puncture part 26 of the fixing part 21 and the mounting part 22, and the mounting part 22 and the main body part 24 of the fixing part 21 are irremovably joined, so that the puncture part and main body part of the fixing part and the mounting part become completely integrated and cannot be separated. This prevents the mounting parts and puncture site from coming off, thus preventing misuse and reuse. It reliably prevents repeated use in other containers, for example, preventing deterioration of the puncture site 26 and reliably preventing multiple uses.

[0055] Furthermore, in the spout 20 of this embodiment, the mounting part 22 has a connection mechanism 38 that can be connected to the end connection part 13a provided on the outer tube 13. Therefore, the operation of connecting the outer tube 13 to the spout and the operation of integrating the puncture part 26 with the mounting part 22 and puncturing the sealing part with the puncture part can be performed separately, and the user can arbitrarily select each operation according to the usage situation, making it easy to use.

[0056] Furthermore, in the spout 20 of this embodiment, the opening periphery 23a on the inside of the container 10 of the through hole 23 has a concave shape that is recessed in the axial direction of the through hole 23, and the sealing portion 25 is made of a sheet material joined to the opening periphery 23a and is configured to be cut by the tip blade portion 44 of the puncture portion 26 when the puncture portion 26 is rotated.Here, since the sealing portion 25 made of sheet material positioned near the opening periphery 23a of the through hole 23 has a concave shape, when the tip blade portion 44 of the puncture portion 26 is rotated and pressed against it, the sealing portion 25 made of sheet material is less likely to stretch, and therefore the sealing portion 25 near the opening periphery can be reliably cut by the tip blade portion 44.

[0057] Furthermore, since the puncture portion 26 is positioned in a predetermined location within the through-hole 23 by the fragile portion 43, the tip blade portion 44 of the puncture portion 26 can be pre-positioned to a position that facilitates cutting the sealing portion 25, which is made of a concave sheet material. By rotating the tip blade portion 44 of the puncture portion 26, it is possible to reliably cut it. As a result, even if the sealing portion 25 is made of a sheet material that has high sealing properties and is difficult to puncture, it can be punctured more reliably and the spout 20 can be opened. In particular, since the sheet material constituting the sealing portion 25 has a puncture position 25a set at the innermost part of the concave shape, where it is bent in a roughly V-shape, it is possible to cut it even more reliably with the tip blade portion 44 of the puncture portion 26.

[0058] The above embodiments can be modified as appropriate within the scope of the present invention. For example, in the above embodiment, the spout was described using an example of a port portion for discharging contents by connecting other members such as an external tube 13 to the container 10. However, the present invention is not particularly limited, and can be applied to other spouts that do not have an external tube or the like connected to them. Furthermore, while the above example illustrates a container body with a resin sheet sealed around the perimeter, the container body is not limited in any way as long as it can airtightly secure the spout and accommodate contents inside. Furthermore, in the above embodiment, an example was described in which the first locking portion 31 and the first locked portion 41 are formed as threaded portions that can be screwed together, and the second locking portion 32 and the second locked portion 42 are also formed as threaded portions that can be screwed together. However, the locking means are not particularly limited as long as they can move in the axial direction and rotational direction in a stable position relative to each other. [Explanation of symbols]

[0059] 10 containers 11 Container body 13. External tube 13a End connection 15. Storage area 17 Container wall 20 Spout 21 Fixing parts 22 Mounting parts 23 Through hole 23a Periphery of the opening 24 Main body 25 Sealing part 25a Puncture position 26 Puncture site 27 Hull shape 27a Inner end surface 27b Outer end face 28 Protrusion 30 Mounting part 31 First locking part 32 Second locking section 33 Stopper 34a First inclined recess 34b Second inclined recess 35a 1st inclined protrusion 35b 2nd inclined protrusion 36a First Detachment Prevention Unit 36b Second Detachment Prevention Unit 37 Mounting part body 38 Connection mechanism 39 Rear end support part 40 Connection part 41 First locked part 42 Second locked part 43 Vulnerable parts 44 Tip blade 44a Piercing part 44b Cutting blade 45 Operation section 46 Annular projection

Claims

1. It comprises a fixing part that is fixed to the container, and a mounting part that can be attached to the fixing part, The fixing part comprises a main body portion having a through hole that penetrates between the inside and outside of the container, a sealing portion that closes the through hole on the inside of the container, and a cylindrical puncture portion that is positioned inside the through hole so as to be able to puncture the sealing portion and is held by the main body portion via a fragile portion. The mounting part comprises a cylindrical mounting body, a first locking portion that can be locked into the puncture portion, and a second locking portion that can be locked into the main body. By engaging the first locking portion of the mounting part with the puncture portion, the mounting part is integrated with the puncture portion. Furthermore, in the process of locking the second locking portion of the mounting part to the main body, the puncture portion integrated with the mounting part is advanced to break the fragile portion, and the tip of the puncture portion punctures the sealing portion. A spout characterized in that, with the mounting part locked and integrated with the main body, the contents of the container flow through the puncture portion and are configured to be discharged to the outside from the mounting part body.

2. The spout according to claim 1, wherein the tip of the puncture portion is positioned at a location corresponding to a predetermined puncture position in the sealing portion, and the puncture portion is held via the fragile portion, and the tip of the puncture portion, having broken through the fragile portion and advanced, is capable of puncturing the sealing portion at the puncture position.

3. The spout according to claim 2, wherein the second locking portion is screwed into the main body portion, thereby allowing the tip blade portion of the puncture portion to rotate and advance, thereby puncturing the sealing portion.

4. The spout according to claim 2, wherein the first locking portion can be screwed into the puncture portion by rotating coaxially and in the same direction as the second locking portion, and the second locking portion is configured to begin screwing into the main body portion before the first locking portion, which is screwed into the puncture portion, completes screwing.

5. The spout according to claim 1, further comprising a first detachment prevention part that, by completing the locking of the first locking part, causes the mounting part and the puncture part to be fitted together in a way that prevents them from being detached.

6. The spout according to claim 1, further comprising a second detachment prevention part that, by completing the locking of the second locking part, causes the mounting part and the main body to be fitted together in a way that prevents them from being detached.

7. The spout according to claim 1, wherein the opening periphery of the through hole on the inside of the container has a concave shape that is recessed in the axial direction of the through hole, and the sealing portion is made of a sheet material joined to the opening periphery and is configured to be cut by the tip blade of the puncture portion when the puncture portion rotates.

8. A container with a spout, comprising the spout described in any one of claims 1 to 7.

Images