Container with slit valve

The container design with a movable lid member and biasing mechanism effectively prevents leakage by restricting the slit valve's displacement, ensuring secure closure and easy dispensing.

JP7743225B2Active Publication Date: 2025-09-24YOSHINO KOGYOSHO CO LTD
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Patent Information

Application Number
JP2021126249
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-07-30
Publication Date
2025-09-24
Estimated Expiration
2041-07-30

AI Technical Summary

Technical Problem

Existing containers with slit valves can unintentionally leak contents when inverted due to increased internal pressure from temperature changes.

Method used

A container design with a movable lid member that restricts radial and upward displacement of the slit valve's outer edge, combined with a biasing member to maintain the valve in a closed position when inverted, and a downwardly convex slit valve shape to enhance closure under pressure.

Benefits of technology

Prevents unintentional discharge of contents when the container is inverted by maintaining the slit valve in a closed state, ensuring reliable containment and easy dispensing when needed.

✦ Generated by Eureka AI based on patent content.

Smart Images

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Patent Text Reader

Abstract

To propose a container with a slit valve capable of suppressing discharge of a content not intended by a user in an inverted posture.SOLUTION: A container 100 with a slit valve includes: a container body 2 forming an accommodation space S for a content; a cap body 10 having an opening 40a communicating with the accommodation space S and attached to a mouth 4a; a slit valve 30 fixed to the cap body 10, closing the mouth 40a and opened by a positive pressure in the accommodation space S to allow the content in the accommodation space S to flow out; and a lid member 50 capable of placing the container in an inverted posture by bringing a top wall 52 of the lid member 50 into contact with a mounting surface M, which is the lid member 50 capable of relative movement in a vertical direction with respect to the cap body 10, wherein when the container 100 with the slit valve is placed in the inverted position, the lid member 50 is displaced so as to be relatively close to the cap body 10 to regulate radially outward displacement of an outer edge of the slit valve 30.SELECTED DRAWING: Figure 4
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Description

[Technical Field]

[0001] The present disclosure relates to a container with a slit valve. [Background technology]

[0002] Known containers for storing cosmetics, facial cleansers, and the like that can easily dispense a predetermined amount of the contents and also exhibit good liquid drainage performance include those equipped with a cap equipped with a slit valve, as described in Patent Document 1, for example. The slit valve here is made of a soft material such as rubber or elastomer, and is configured to be elastically deformed by pressing the body of the container and applying pressure to the inside of the container, thereby instantly opening a cross-shaped cut (slit) at the top, allowing the appropriate amount of the contents to be dispensed. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2002-347813 Summary of the Invention [Problem to be solved by the invention]

[0004] However, with the cap with a slit valve described in Patent Document 1, when the cap is in an inverted position with the lid open, the contents may leak out through the slit due to an increase in pressure inside the container body caused by temperature changes, etc., and there is room for improvement in this regard.

[0005] The present disclosure aims to solve these problems, and its purpose is to propose a container with a slit valve that can prevent the user from unintentionally ejecting the contents when in an inverted position. [Means for solving the problem]

[0006] The container with a slit valve of the present disclosure comprises: a container body having a mouth, a body, and a bottom, and forming a storage space for contents; a cap body having an opening communicating with the storage space and attached to the opening; a slit valve fixed to the cap body, closing the opening, and being opened by positive pressure in the storage space to allow the contents in the storage space to be poured out; a lid member that is movable relative to the cap body in the vertical direction, and a container can be placed on the lid member in an inverted position by abutting a top wall of the lid member against a placement surface; A container with a slit valve comprising: When the container with the slit valve is placed in an inverted position, the lid member displaces so as to approach the cap body relatively, thereby restricting radial outward displacement of the outer edge of the slit valve.

[0007] Furthermore, in the above-described configuration of the slit valve-equipped container of the present disclosure, when the slit valve-equipped container is placed in an inverted position, it is preferable that the lid member further restricts upward displacement of the outer edge of the slit valve.

[0008] In addition, in the above configuration, the container with a slit valve of the present disclosure preferably further comprises a biasing member that biases the lid member upward relative to the cap body.

[0009] In addition, in the container with a slit valve of the present disclosure having the above configuration, the slit valve preferably has a dome shape that is convex downward. [Effects of the Invention]

[0010] According to the present disclosure, a container with a slit valve can be proposed that is capable of preventing the content from being unintentionally discharged by the user when in an inverted position. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a front partial cross-sectional view of a container with a slit valve according to a first embodiment of the present disclosure. [Figure 2] FIG. 2 is an enlarged cross-sectional view of a container cap portion in FIG. [Figure 3] 1 is a front partial cross-sectional view showing a state in which a container with a slit valve according to a first embodiment of the present disclosure is placed in an inverted position. [Figure 4] FIG. 4 is an enlarged cross-sectional view of a container cap portion in FIG. 3. [Figure 5] 5 is an enlarged cross-sectional view showing a state in which the container body is lifted from the state shown in FIG. 4 and the lid member is moved in a direction away from the cap body. [Figure 6] FIG. 6 is an enlarged cross-sectional view showing a state in which the pouring hole is oriented from the state of FIG. 5 and the body is squeezed to cause the contents to spray out from the slit valve. [Figure 7] FIG. 10 is a partial front cross-sectional view showing a state in which a container with a slit valve according to a second embodiment of the present disclosure is placed in an inverted position. DETAILED DESCRIPTION OF THE INVENTION

[0012] The present disclosure will be described in more detail below with reference to the drawings.

[0013] A vessel 100 with a slit valve according to a first embodiment of the present disclosure will be illustrated and described in detail with reference to Figures 1 to 6. In this specification, claims, abstract, and drawings, the upright state of the vessel is used as a reference, with the side on which the lid member 50 is located being the upper side (upper side in Figure 1) and the side on which the bottom 4d of the vessel body 2 is located being the lower side (lower side in Figure 1). These upper and lower sides are based on the vessel 100 with a slit valve even when the vessel 100 is in an inverted position; for example, in Figure 3, the lower side of the figure on which the lid member 50 is located is the upper side of the vessel 100 with a slit valve, and the upper side of the figure on which the bottom 4d of the vessel body 2 is located is the lower side of the vessel 100 with a slit valve.

[0014] In addition, the radially outward direction refers to the direction away from the central axis O along a straight line passing through the central axis O of the slit valve-equipped container 100 extending in the vertical direction in Figure 1 and perpendicular to the central axis O, and the radially inward direction refers to the direction toward the central axis O along that straight line.

[0015] 1, a container 100 with a slit valve according to this embodiment includes a cap body 10 having a cylindrical shape with a top that can be attached to and detached from the mouth 4a of a container body 2, a slit valve 30 fixed to a top wall 19 of the cap body 10 and located directly below a pouring hole 52a provided in a top wall 52 of a lid member 50 (described later), an opening member 40 that fixes the slit valve 30 to the top wall 19 and forms an opening 40a that connects the storage space S of the container body 2 to the pouring hole 52a, a lid member 50 that has the pouring hole 52a and is movable vertically relative to the cap body 10, and a biasing member 60 that biases the lid member 50 upward relative to the cap body 10. The cap body 10, the slit valve 30, the opening member 40, the lid member 50, and the biasing member 60 form a container cap 1.

[0016] In this embodiment, the container body 2 to which the container cap 1 is attached has a mouth 4a, a body 4c that is wider than the mouth 4a and extends vertically, and a bottom 4d that closes the lower portion of the body 4c. The container body 2 is a squeeze container that can be elastically deformed by pressure from the body 4c and can restore its original shape due to its own rigidity when the pressure is released. A male thread 4b is provided on the outer surface of the mouth 4a and is configured to threadably engage with a female thread 12a provided on the inner surface of the outer wall 11 of the cap body 10. When the slit valve-equipped container 100 is unopened, the upper end of the mouth 4a of the container body 2 may be sealed with a sealing material 3, such as a resin film laminated with aluminum, as shown by the two-dot chain line in Figures 1 and 2. This also applies to the second embodiment described below. Note that, although the container body 2 in this embodiment is a squeeze container that can be elastically deformed by pressure from the body 4c, the present invention is not limited to this embodiment. The container body 2 may be configured so that a positive pressure is created inside the accommodation space S by elastically deforming a portion other than the body portion 4c.

[0017] In this embodiment, the container body 2 is made of synthetic resin and is formed by blow molding a parison formed by extruding a molding material into a tubular shape. However, the container body 2 can also be formed by other methods, such as by biaxially stretching a preform formed in advance by injection molding or the like.

[0018] The cap body 10 has a cylindrical shape with a top, including a cylindrical outer peripheral wall 11 and a top wall 19 continuous with the upper end of the outer peripheral wall 11. As shown in Fig. 2 and other figures, the inner peripheral surface of the outer peripheral wall 11 has a female thread portion 12a, which can be fixed to the container body 2 by threadedly engaging with a male thread portion 4b provided on the outer peripheral surface of the mouth portion 4a of the container body 2. A protrusion 19d is formed on the lower surface of the top wall 19 at a position corresponding to the mouth portion 4a, and this protrusion 19d abuts against the upper end of the mouth portion 4a, thereby tightly sealing the mouth portion 4a with the cap body 10.

[0019] The cap body 10 may be fixed to the mouth portion 4a of the container body 2 by screw engagement as in this embodiment, or may be fixed by a stoppering method, and various forms can be selected.

[0020] Near the radial center of the top wall 19, there are provided a top wall opening 19g in which the valve body 31a of the slit valve 30 is disposed, a second recess 19f in which the valve fixing portion 31d of the slit valve 30 is disposed, a first recess 19e for fixing the opening member 40 (described later), and a guide tube 19h protruding upward from the radial outside of the top wall opening 19g. The guide tube 19h guides the engaging tube 52b and serves as a support portion that supports the engaging tube 52b from the radial outside. A spouting hole 52a of the lid member 50 is disposed above the slit valve 30, and the positive pressure within the container body 2, which is increased by squeezing the barrel portion 4c, guides the contents within the storage space S that pass through the opening 40a and the slit valve 30 to the outside.

[0021] In Fig. 2, a slit valve 30 is disposed directly below the spouting hole 52a. The slit valve 30 has a downwardly convex dome-shaped valve element 31a with a cross-shaped slit 31b in the center, a cylindrical peripheral wall 31c that supports the outer peripheral edge of the valve element 31a, and a valve fixing portion 31d connected to the lower end of the peripheral wall 31c. As shown in Fig. 2, the valve fixing portion 31d is fixed to the cap body 10 by being sandwiched between the upper end surface of a second recess 19f of the top wall 19 and an opening member 40, which will be described later.

[0022] The valve element 31a of the slit valve 30 is formed as a thin member made of a soft material such as rubber or elastomer. When positive pressure is generated within the container body 2, the radial center portion of the valve element 31a is displaced upward, and the slit 31b opens and becomes open. This allows the contents within the storage space S of the container body 2 to be discharged to the outside through the opening 40a, the gap between the slits 31b, and the spout hole 52a. The shape of the slit 31b may be a curved shape other than a cross shape, and the number of slits 31b may be one, or three or more.

[0023] The opening member 40 has an opening cylinder 40b that forms an opening 40a that communicates between the storage space S and the slit valve 30, a flange portion 40c connected to the lower end of the opening cylinder 40b, an engagement wall 40d that protrudes upward from the outer circumferential end of the flange portion 40c, and an engagement protrusion 40e that protrudes radially outward from the outer circumferential surface of the engagement wall 40d. The slit valve 30 and the opening member 40 are fixed to the cap body 10 by sandwiching the valve fixing portion 31d of the slit valve 30 between the upper surface of the flange portion 40c and the upper end surface of the second recess 19f of the top wall 19 and by undercut-engaging the engagement protrusion 40e with the engagement protrusion 19b formed on the side surface of the first recess 19e of the top wall 19. Note that, for example, the cap body 10 and the slit valve 30 may be formed integrally.

[0024] 2, the lid member 50 is movable up and down relative to the cap body 10 by slidably abutting an engaging protrusion 53a of the lid peripheral wall 53 in a fitting recess 11a provided at the upper end of the outer peripheral wall 11 of the cap body 10. Furthermore, the engaging protrusion 53a of the lid member 50 engages with an engaging protrusion 19a provided at the upper end of the fitting recess 11a, thereby preventing the lid member 50 from coming off upward relative to the cap body 10.

[0025] The lid member 50 includes a flat top wall 52 and a lid body peripheral wall 53 that is connected to the outer edge of the top wall 52 and has an outer peripheral surface that has approximately the same diameter as the outer peripheral wall 11. A spout hole 52a is provided at approximately the center of the diameter of the top wall 52, for discharging the contents that have passed through the slit valve 30. In addition, an engagement tube 52b protrudes downward from the underside of the top wall 52. The engagement tube 52b is inserted between the inner peripheral surface of the guide tube 19h and the outer peripheral surface of the peripheral wall 31c of the slit valve 30 when the lid member 50 is moved to the lower end of its movable range relative to the cap body 10.

[0026] As shown in FIG. 4, when the lid member 50 is moved to the lower end of its movable range relative to the cap body 10 (the upper end in FIG. 4), the inner circumferential surface of the engaging tube 52b of the lid member 50 abuts against the outer circumferential surfaces of the valve element 31a and the peripheral wall 31c of the slit valve 30, functioning as a restricting member that restricts radially outward displacement of the outer edge of the valve element 31a. Furthermore, the lower surface of the top wall 52 of the lid member 50 abuts against the outer edge of the valve element 31a and the upper surface of the peripheral wall 31c of the slit valve 30, functioning as a restricting member that restricts upward displacement of the outer edge of the valve element 31a. In particular, restricting the radially outward displacement of the outer edge of the valve element 31a makes it easier to maintain the slit valve 30 in a closed state. Furthermore, restricting the upward displacement of the outer edge of the valve element 31a also makes it harder for the valve element 31a to be displaced upward, making it easier to maintain the slit valve 30 in a closed state.

[0027] In this embodiment, the lid member 50 is urged upward relative to the cap body 10 by a urging member 60 shown in Figures 1 and 2. In this embodiment, the urging members 60 are fixed to the underside of the top wall 52 of the lid member 50 at four circumferential positions, and extend in a substantially arc from the underside of the top wall 52 of the lid member 50 to the upper surface of the top wall 19 of the cap body 10, as shown by the two-dot chain line on the central axis O in Figures 4 and 5. The urging member 60 may be formed integrally with the lid member 50 or the cap body 10, or may be a separate member such as a leaf spring.

[0028] 1 and 2, when the slit valve-equipped container 100 is in the upright position, the lid member 50 is urged upward by the urging member 60 and positioned at the upper end of its movement range. That is, the urging member 60 fixed to the lid member 50 functions as a urging spring whose lower end extends downward beyond the upper surface of the top wall 19 of the cap body 10 in an unloaded state, and pushes the lid member 50 upward until the upper part of the engaging protrusion 53a provided on the lower part of the lid body peripheral wall 53 engages with the lower part of the engaging protrusion 19a of the fitting recess 11a.

[0029] During storage or when not in use, the user holds the slit valve-equipped container 100 in an inverted position so that the top wall 52 of the lid member 50 abuts against the placement surface M, as shown in Figures 3 and 4. At this time, due to the weight of the container body 2, the contents, and the cap body 10, the cap body 10 approaches the lid member 50 against the biasing force of the biasing member 60 until the lower end surface of the fitting recess 11a abuts against the lower end surface of the lid body peripheral wall 53. At this time, the lid member 50 is positioned at the lower end of its movement range relative to the cap body 10 against the biasing force of the biasing member 60, and the biasing member 60 is deformed from a substantially circular arc shape to a substantially elliptical arc shape, as shown by the two-dot chain line on the central axis O in Figure 4.

[0030] 3 and 4, the lid member 50 is positioned at the lower end of its range of movement relative to the cap body 10 against the biasing force of the biasing member 60, and the engagement tube 52b provided on the top wall 52 of the lid member 50 is inserted between the guide tube 19h of the cap body 10 and the peripheral wall 31c of the slit valve 30. By inserting the engagement tube 52b, the engagement tube 52b restricts radially outward movement of the outer edge portion of the valve body 31a of the slit valve 30 and the upper part of the peripheral wall 31c. In addition, since the lower surface of the top wall 52 abuts against the outer edge portion of the valve body 31a from above, the upward movement of this portion is also restricted.

[0031] In this manner, the downward movement of the lid member 50 relative to the cap body 10 restricts the radially outward and upward movement of the outer edge of the valve element 31a of the slit valve 30. Therefore, for example, if the temperature in the storage space S of the container body 2 increases due to an increase in room temperature or the like, causing the internal pressure to increase, the downwardly convex valve element 31a is pressed from below, causing the valve element 31a to expand radially outward. However, because the radially outward movement of the outer edge of the valve element 31a is restricted, the outer edge of the valve element 31a cannot expand radially outward. Therefore, even if the internal pressure in the storage space S increases, the slit valve 30 cannot be opened. Rather, the force pushing the valve element 31a upward increases the compressive stress within the surface of the valve element 31a, causing the slit valve 30 to be closed with a stronger force. Furthermore, because the upward displacement of the outer edge of the valve element 31a is restricted, the valve element 31a is less likely to displace upward, making it easier to maintain the slit valve 30 in a closed state.

[0032] When discharging the contents from the container 100 with a slit valve configured as described above, the user grasps the barrel portion 4c of the container body 2 and lifts it upward from the inverted position shown in Figures 3 and 4. When the user lifts the container body 2 by the movable distance d of the lid member 50 relative to the cap body 10 as shown in Figure 5, the lid member 50 moves upward (downward in Figure 5) relative to the cap body 10 by the movable distance d due to its own weight and the biasing force of the biasing member 60. This upward movement of the lid member 50 separates the engagement tube 52b of the lid member 50 from the peripheral wall 31c and guide tube 19h of the slit valve 30, and the abutment between the top wall 52 and the outer edge of the valve body 31a is also released.

[0033] In this way, the upward movement of the lid member 50 releases the restriction on the radially outward and upward movement of the outer edge of the valve element 31 of the slit valve 30. Therefore, as shown in FIG. 6, when a user orients the spout hole 52a in the direction of discharging the contents and then squeezes the barrel portion 4c of the container body 2, the internal pressure in the storage space S increases, and the valve element 31a is pressed upward (toward the lower left in FIG. 6). At this point, the outer edge of the valve element 31a can expand radially outward, and the restriction on upward displacement is also released, so the valve element 31a elastically deforms upward and opens the valve. The contents that have moved from the storage space S of the container body 2 to the mouth portion 4a are discharged to the outside via the opening 40a, the slit valve 30, and the spout hole 52a, as shown in FIG. 6.

[0034] When the user has finished discharging a predetermined amount of the contents, he or she releases the squeeze on the body 4c. This causes the slit valve 30 to return to its original shape and close due to its own rigidity. Furthermore, because the body 4c of the container body 2 also returns to its original shape due to its own rigidity, a negative pressure is generated within the container body 2. This negative pressure causes the slit valve 30 to elastically deform downward (toward the container body 2) and open again, allowing air to be introduced into the container body 2 from the outside through the gap in the slit 31b. The user returns the slit valve-equipped container 100 to the inverted position shown in FIGS. 3 and 4 and abuts the top wall 52 of the lid member 50 against the mounting surface M. This restricts the displacement of the slit valve 30 by inserting the engaging tube 52b and abutting the top wall 52, as described above, making it easier to reliably close the slit valve 30. This effectively prevents the contents from leaking to the outside through the gap in the valve body 31a of the slit valve 30.

[0035] As described above, this embodiment is a container with a slit valve 100 comprising: a container body 2 having a mouth 4a, a body 4c, and a bottom 4d, and forming a storage space S for the contents; a cap body 10 having an opening 40a that communicates with the storage space S and is attached to the mouth 4a; a slit valve 30 that is fixed to the cap body 10, closes the opening 40a, and is opened by positive pressure in the storage space S, allowing the contents in the storage space S to be poured out; and a lid member 50 that is movable vertically relative to the cap body 10, and allows the container to be placed in an inverted position by abutting the top wall 52 of the lid member 50 against the placement surface M. When the container with a slit valve 100 is placed in an inverted position, the lid member 50 displaces so as to come closer to the cap body 10, thereby restricting radial outward displacement of the outer edge of the slit valve 30. By employing such a configuration, even when the slit valve-equipped container 100 is stored in an inverted position, the slit valve 30 can be easily closed by restricting radially outward displacement by the lid member 50. Therefore, in the slit valve-equipped container 100 in an inverted position, leakage of the contents to the outside through the gap in the valve body 31a of the slit valve 30 can be effectively prevented.

[0036] Furthermore, in this embodiment, when the slit valve-equipped container 100 is placed in an inverted position, the lid member 50 is configured to further restrict upward displacement of the outer edge of the slit valve 30. By employing such a configuration, even when the slit valve-equipped container 100 is stored in an inverted position, the slit valve 30 can be made more easily closed by restricting upward displacement by the lid member 50. Therefore, leakage of contents to the outside through the gap in the valve body 31a of the slit valve 30 can be more effectively suppressed in the slit valve-equipped container 100 in an inverted position.

[0037] Furthermore, in this embodiment, the device is configured to further include a biasing member 60 that biases the lid member 50 upward relative to the cap body 10. By employing such a configuration, when the slit valve-equipped container 100 is lifted from an inverted position in which the displacement of the slit valve 30 is restricted by the lid member 50 so that the slit valve 30 is less likely to open, the biasing force of the biasing member 60 can reliably separate the lid member 50 from the cap body 10, thereby releasing the restriction on the displacement of the slit valve 30. Therefore, when the slit valve-equipped container 100 is lifted from the inverted position and the barrel portion 4c of the container body 2 is squeezed, the contents can be reliably discharged.

[0038] In this embodiment, the slit valve 30 is configured to have a downwardly convex dome shape. By adopting such a configuration, when the displacement of the slit valve 30 is restricted by the cover member 50, a compressive stress that makes the slit valve 30 more likely to close can be generated as the internal pressure in the storage space S increases.

[0039] Next, a slit valve-equipped container 200 according to a second embodiment of the present disclosure will be described with reference to FIG.

[0040] 7, the slit valve-equipped container 200 according to this embodiment is similar in configuration to the first embodiment except that, compared to the first embodiment, it does not have a biasing member 60 that applies a biasing force between the top wall 52 of the lid member 50 and the ceiling wall 19 of the cap body 10. Therefore, the following description will focus on the differences from the first embodiment.

[0041] During storage or when not in use, the user holds the slit valve-equipped container 200 in an inverted position so that the top wall 52 of the lid member 50 abuts against the placement surface M, as shown in Figure 7. At this time, due to the weight of the container body 2, the contents, and the cap body 10, the cap body 10 approaches the lid member 50 until the lower end surface of the fitting recess 11a abuts against the lower end surface of the lid body peripheral wall 53. At this time, the lid member 50 is positioned at the lower end of its range of movement relative to the cap body 10.

[0042] As described above, during storage and when not in use as shown in Fig. 7, the weight of the container body 2, the contents, and the cap body 10 positions the lid member 50 at the lower end of its range of movement relative to the cap body 10, and the engagement tube 52b provided on the top wall 52 of the lid member 50 is inserted between the guide tube 19h of the cap body 10 and the peripheral wall 31c of the slit valve 30. By inserting this engagement tube 52b, the engagement tube 52b restricts radially outward movement of the outer edge portion of the valve body 31a of the slit valve 30 and the upper part of the peripheral wall 31c. In addition, because the lower surface of the top wall 52 abuts against the outer edge portion of the valve body 31a from above, upward movement of this portion is also restricted.

[0043] In this manner, the downward movement of the lid member 50 relative to the cap body 10 restricts the radially outward and upward movement of the outer edge of the valve element 31a of the slit valve 30. Therefore, for example, if the temperature in the storage space S of the container body 2 increases due to an increase in room temperature or the like, causing the internal pressure to increase, the downwardly convex valve element 31a is pressed from below, causing the valve element 31a to expand radially outward. However, because the radially outward movement of the outer edge of the valve element 31a is restricted, the outer edge of the valve element 31a cannot expand radially outward. Therefore, even if the internal pressure in the storage space S increases, the slit valve 30 cannot be opened. Rather, the force pushing the valve element 31a upward increases the compressive stress within the surface of the valve element 31a, causing the slit valve 30 to be closed with even greater force. Furthermore, because the upward displacement of the outer edge of the valve element 31a is restricted, the valve element 31a is less likely to displace upward, making it easier to maintain the slit valve 30 in a closed state.

[0044] When discharging the contents from the container with slit valve 200 configured as described above, the user holds the barrel portion 4c of the container body 2 and lifts it upward from the inverted position shown in Fig. 7. When the user lifts the container body 2, the lid member 50 moves upward (downward in Fig. 7) relative to the cap body 10 due to its own weight. This upward movement of the lid member 50 separates the engagement tube 52b of the lid member 50 from the peripheral wall 31c and guide tube 19h of the slit valve 30, and also releases the contact between the top wall 52 and the outer edge of the valve body 31a.

[0045] In this way, the upward movement of the lid member 50 releases the radially outward and upward restriction on the valve body 31 of the slit valve 30. Therefore, when a user orients the spouting hole 52a in the direction of discharging the contents and then squeezes the barrel portion 4c of the container body 2, the internal pressure in the storage space S increases and the valve body 31a is pressed upward. At this stage, the displacement of the slit valve 30 is not restricted by the lid member 50, and the outer edge of the valve body 31a can expand radially outward, so the valve body 31a elastically deforms upward and is released. The contents that have moved from the storage space S of the container body 2 to the mouth portion 4a are discharged to the outside via the opening 40a, the slit valve 30, and the spouting hole 52a.

[0046] If the lid member 50 does not move completely upward due to its own weight alone, the user may manually move the lid member 50 upward.

[0047] Although the present disclosure has been described based on various drawings and examples, it should be noted that those skilled in the art can easily make various modifications and alterations based on the present disclosure. Therefore, it should be noted that these modifications and alterations are included in the scope of the present invention. For example, the functions included in each component can be rearranged so as not to cause logical inconsistencies, and multiple components can be combined into one or divided. It should be understood that these modifications and alterations are also included in the scope of the present invention.

[0048] For example, in this embodiment, the slit valve 30 is configured to be convex downward, but this is not limited to this form, and the slit valve 30 may be configured to be convex upward or to have a flat shape.

[0049] In addition, in this embodiment, the opening 40a is formed in the cap body 10 using the opening member 40, but the present invention is not limited to this embodiment, and the opening may be formed integrally with the cap body 10.

[0050] In addition, an overcap for closing the pouring hole 52a of the lid member 50 may be further provided. [Explanation of symbols]

[0051] 1 container cap 2 Container body 3. Sealing material 4a Mouth 4b Male thread 4c Torso 4d bottom 10 Cap body 11 Peripheral wall 11a Fitting recess 12a Female thread 19 Ceiling wall 19a Engagement protrusion 19b Engagement protrusion 19d protrusion 19e First recess 19th floor 2nd recess 19g Ceiling wall opening 19h Guide tube 30 Slit valve 31a Valve body 31b Slit 31c Peripheral wall 31d Valve fixing part 40 Opening material 40a opening 40b open tube 40c flange 40d engaging wall 40e Engagement protrusion 50 Lid member 52 Top wall 52a Pour hole 52b Engagement tube 53 Lid body peripheral wall 53a Engaging protrusion 60 biasing member 100 Container with slit valve 200 Container with slit valve M Placement surface O center axis S Storage space d Travelable distance

Claims

1. a container body having a mouth, a body, and a bottom, and forming a storage space for contents; a cap body having an opening communicating with the storage space and attached to the opening; a slit valve fixed to the cap body, closing the opening, and being opened by positive pressure in the storage space to allow the contents in the storage space to be poured out; a lid member that is movable relative to the cap body in the vertical direction, and a container can be placed on the lid member in an inverted position by abutting a top wall of the lid member against a placement surface; A container with a slit valve comprising: A container with a slit valve, characterized in that when the container with a slit valve is placed in an inverted position, the lid member displaces relatively closer to the cap body, thereby restricting radial outward displacement of the outer edge of the slit valve.

2. 2. The container with a slit valve according to claim 1, wherein when the container with a slit valve is placed in an inverted position, the lid member further restricts upward displacement of the outer edge of the slit valve.

3. The container with a slit valve according to claim 1 or 2, further comprising a biasing member that biases the lid member upward relative to the cap body.

4. The container with a slit valve according to claim 1 , wherein the slit valve has a downwardly convex dome shape.

Citation Information

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