Container with slit valve

Abstract

To provide a container with a slit valve capable of dispensing a small amount of contents.SOLUTION: A container 100 with a slit valve includes: a container body 2 that has a mouth part 4a, a body part 4c, and a bottom part 4d and forms an accommodating space S for contents; a cap body 10 that has a cap opening 19g leading to the accommodating space S and is attached on the mouth part 4a; and a slit valve 30 that is fixed to the cap body 10 and closes the cap opening 19g and is opened by positive pressure in the accommodating space S so as to pour out the contents in the accommodating space S. Below the slit valve 30, a liquid reservoir wall 40 is arranged to form a section for a liquid reservoir space R between the slit valve 30 and the liquid reservoir wall 40. The liquid reservoir wall 40 has a liquid reservoir opening 40a formed to communicate the slit valve 30 with the accommodating space S. An opening area of the liquid reservoir opening 40a is smaller than the maximum opening area of an opening (slit 31b) of the slit valve 30.SELECTED DRAWING: Figure 2

Description

Technical Field

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

Background Art

[0002] As a container for storing cosmetics, facial cleansers, etc., there is known, for example, as described in Patent Document 1, one equipped with a cap having a slit valve that can easily discharge a predetermined amount of the contents and can exhibit good liquid drainage performance. Here, the slit valve is made of a soft material such as rubber or elastomer, and is elastically deformed by pressing the body of the container or the like to pressurize the inside of the container, and the cross-shaped cut (slit) provided at the top thereof is instantaneously opened, so that an appropriate amount of the contents can be discharged.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in the cap with a slit valve described in Patent Document 1, the unintended discharge of the contents from the slit valve is suppressed by arranging a housing containing a compressible substance such as air on the upstream side of the slit valve. However, in the configuration of Patent Document 1, when the body of the container is pressed to discharge the contents, the slit valve is instantaneously opened during the expansion process of the compressible substance in the housing after being compressed once, so that the contents are discharged vigorously. Therefore, the configuration of Patent Document 1 is not suitable for discharging a small amount of the contents, and there is room for improvement in this regard.

[0005] This disclosure aims to solve these problems, and its purpose is to propose a container with a slit valve that can dispense small amounts of contents. [Means for solving the problem]

[0006] The container with a slit valve disclosed herein is A container body having a mouth, a body, and a bottom, forming a space for storing contents, A cap body having a cap opening that leads to the aforementioned storage space and which is fitted onto the opening, A slit valve is fixed to the cap body, which closes the cap opening and is opened by the positive pressure in the containment space to dispense the contents in the containment space. A container equipped with a slit valve, Below the slit valve, a liquid reservoir wall is positioned to partition a liquid reservoir space between itself and the slit valve. The liquid reservoir wall has a liquid reservoir opening that penetrates the liquid reservoir wall vertically and connects the slit valve to the housing space. The slit valve and the liquid reservoir opening are always in communication. The opening area of ​​the liquid reservoir opening is characterized by being smaller than the maximum opening area of ​​the slit valve opening.

[0007] Furthermore, in the above configuration, the container with a slit valve of the present disclosure preferably further comprises a lid member that covers the slit valve from above, and the outer circumferential surface of the cap body is provided with an engaging portion for engaging and fixing the lid member.

[0008] Furthermore, in the container with a slit valve according to the present disclosure, in the above configuration, the lid member preferably has a lid periphery wall having a smaller diameter than the outer circumferential wall of the cap body, and the lid periphery wall is capable of engaging with an inner circumferential wall provided radially inward of the outer circumferential wall.

[0009] Furthermore, in the container with a slit valve according to the present disclosure, it is preferable that the peripheral wall of the lid portion is connected to the peripheral wall via an arm portion and a hinge portion.

[0010] Furthermore, in the container with a slit valve according to the present disclosure, in the above configuration, it is preferable that the outer peripheral wall of the cap body extends above the slit valve, and the upper end of the outer peripheral wall is provided with an enlarged diameter portion that functions as a leg when the container with the slit valve is in an inverted position. [Effects of the Invention]

[0011] According to this disclosure, a container with a slit valve capable of dispensing a small amount of contents can be proposed. [Brief explanation of the drawing]

[0012] [Figure 1] This is a partial front cross-sectional view of a container with a slit valve (for distribution) according to one embodiment of the present disclosure. [Figure 2] This is an enlarged partial cross-sectional view of the container cap portion in Figure 1. [Figure 3] This is a plan view of a container with a slit valve according to one embodiment of the present disclosure. [Figure 4] This is an enlarged partial cross-sectional view showing a state in which the body of a container with a slit valve according to one embodiment of the present disclosure is squeezed in an inverted position to eject the contents from the slit valve. [Figure 5] This is an enlarged partial cross-sectional view showing a container with a slit valve according to one embodiment of the present disclosure in an inverted position (during storage). [Modes for carrying out the invention]

[0013] The present disclosure will be described in more detail below with reference to the drawings.

[0014] The container 100 with a slit valve according to an embodiment of the present disclosure will be described in detail with reference to FIGS. 1 to 5. In the present specification, claims, abstract, and drawings, based on the upright state of the container, the side where the lid member 50 is located is the upper side (the upper side in FIG. 1), and the side where the bottom 4d of the container body 2 is located is the lower side (the lower side in FIG. 1). These upper and lower sides are based on the upright container 100 with a slit valve even when the container 100 with a slit valve is in an inverted posture. For example, in FIG. 4, the lower side of the figure where the lid member 50 is located is the upper side of the container 100 with a slit valve, and the upper side of the figure where the bottom 4d of the container body 2 is located is the lower side of the container 100 with a slit valve.

[0015] Further, the radially outer side is the direction away from the central axis O along a straight line passing through the central axis O of the container 100 with a slit valve extending in the vertical direction in FIG. 1 and perpendicular to the central axis O, and the radially inner side refers to the direction toward the central axis O along the straight line.

[0016] As shown in FIG. 1, the container 100 with a slit valve according to the present embodiment includes a container body 2 that forms an accommodation space S for the content, a cap opening 19g that communicates with the accommodation space S, a cap body 10 that is detachably attached to the mouth portion 4a of the container body 2 and has a toped cylindrical shape, a slit valve 30 that is fixed to the top wall 19 of the cap body 10, closes the cap opening 19g, and is opened by the positive pressure in the accommodation space S to discharge the content in the accommodation space S to the outside, a liquid reservoir wall 40 that is disposed below the slit valve 30 and partitions a liquid reservoir space R between the slit valve 30, and a lid member 50 that covers the slit valve 30 from above. The cap body 10, the slit valve 30, the liquid reservoir wall 40, and the lid member 50 constitute the container cap 1.

[0017] In this embodiment, the container body 2 to which the container cap 1 is attached has a cylindrical mouth portion 4a, a body portion 4c that is formed wider than the mouth portion 4a and extends in the vertical direction, and a bottom portion 4d that closes the lower portion of the body portion 4c. The container body 2 is a squeeze container that can be elastically deformed by pressing the body portion 4c and can be restored to its original shape by its own rigidity as the pressing is released. A male screw portion 4b is provided on the outer peripheral surface of the mouth portion 4a and is configured to be screwed into a female screw portion 12a provided on the inner peripheral surface of the outer peripheral wall 11 of the cap body 10. When the container 100 with a slit valve is unopened, the upper end portion of the mouth portion 4a of the container body 2 may be sealed with, for example, a sealing material in which aluminum is laminated on a resin film. Note that the container body 2 of the present embodiment is a squeeze container that can be elastically deformed by pressing the body portion 4c, but is not limited to this mode. The container body 2 may be configured such that the internal pressure in the accommodation space S becomes a positive pressure due to elastic deformation of a portion other than the body portion 4c.

[0018] In the present embodiment, the container body 2 is made of synthetic resin and is formed by blow molding a parison obtained by extruding a molding material into a tube shape. Note that the container body 2 can also be formed using other methods, such as by biaxially stretching and blow molding a preform formed in advance by injection molding or the like.

[0019] The cap body 具有10 has a toped cylindrical shape having a cylindrical outer peripheral wall 11 and a top wall 19 connected to the upper end of the outer peripheral wall 11. As shown in FIG. 2 and the like, a female screw portion 12a is provided on the inner peripheral surface of the outer peripheral wall 11 and can be fixed to the container body 2 by being screwed into a male screw 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 the mouth portion 4a is tightly sealed by the cap body 10 when the protrusion 19d abuts against the upper end of the mouth portion 4a.

[0020] [[ID=ll]] Note that the cap body 10 may be configured to be fixed to the mouth portion 4a of the container body 2 by a plugging method in addition to the mode of being fixed by screw engagement as in the present embodiment, and various forms can be selected for this.

[0021] Near the radial center of the top wall 19, there is a cap opening 19g where the valve body 31a of the slit valve 30 is positioned, a first recess 19e where the valve fixing portion 31d of the slit valve 30 is positioned, a second recess 19f into which the valve fixing portion 31d and the outer edge of the liquid reservoir wall 40 fit, and an inner circumferential wall 19b that protrudes upward from the upper surface of the top wall 19 and engages with the lower inner surface of the lid circumferential wall 53. Above the slit valve 30, there is a pressing cylinder 52a for the lid member 50. The pressing cylinder 52a restricts the upward displacement of the valve body 31a of the slit valve 30 when the lid member 50 is closed, thereby preventing the slit valve 30 from opening unintentionally and leaking its contents to the outside.

[0022] The outer peripheral wall 11 of the cap body 10 extends upward beyond the top wall 19 and has an enlarged diameter portion 11c at its upper end that expands radially outward toward upward. The enlarged diameter portion 11c can be formed, for example, as a flange extending radially outward at the upper end of the outer peripheral wall 11. By providing the enlarged diameter portion 11c at the upper end of the outer peripheral wall 11 in this way, after opening the lid member 50 and engaging it with the lid engaging portion 11a provided on the outer peripheral wall 11, the container with slit valve 100 can be placed in an inverted position and the enlarged diameter portion 11c can function as legs (see Figure 5). Therefore, the container with slit valve 100 can maintain a stable inverted position.

[0023] In Figure 2, a slit valve 30 is positioned directly below the push cylinder 52a. The slit valve 30 has a dome shape that is convex downwards and a valve body 31a with a cross-shaped slit 31b in the center, a cylindrical peripheral wall 31c that supports the outer peripheral end of the valve body 31a, and a valve fixing part 31d connected to the lower end of the peripheral wall 31c. As shown in Figure 2, the valve fixing part 31d is fixed to the cap body 10 by being sandwiched between the upper end surface of the first recess 19e of the top wall 19 and the liquid reservoir wall 40, which will be described later.

[0024] The valve body 31a of the slit valve 30 is formed as a thin-walled member from a soft material such as rubber or elastomer. When positive pressure is generated inside the container body 2, the radially central portion of the valve body 31a is displaced upward and the slit 31b opens, creating an open state. This allows the contents of the storage space S of the container body 2 to be discharged to the outside through the liquid reservoir opening 40a, the liquid reservoir space R, and the slit 31b, which will be described later. 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.

[0025] The liquid reservoir wall 40 has an opening cylinder 40b that forms a liquid reservoir opening 40a connecting the containment space S and the slit valve 30, a liquid reservoir bottom wall 40c that is radially outward of the opening cylinder 40b, and a liquid reservoir fixing portion 40d provided radially outward of the liquid reservoir bottom wall 40c. The outer edges of the valve fixing portion 31d and the liquid reservoir fixing portion 40d fit into the second recess 19f and engage with the locking portion 19f1, thereby fixing the slit valve 30 and the liquid reservoir wall 40 to the lower surface of the top wall 19 in a stacked state as shown in Figure 2. Note that at least two of the cap body 10, slit valve 30, and liquid reservoir wall 40 may be formed as a single unit.

[0026] The lid member 50 comprises a top wall 52 that is substantially circular and flat, a lid peripheral wall 53 that hangs downward from the outer edge of the substantially circular portion of the top wall 52, and a pressing cylinder 52a that hangs down from a position approximately in the radial center of the top wall 52.

[0027] In this embodiment, as shown in Figure 2, the lid member 50 is configured such that the diameter (outer diameter) of the lid peripheral wall 53 is smaller than the diameter (outer diameter) of the outer peripheral wall 11 of the cap body 10. The upper outer surface of the inner peripheral wall 19b of the cap body 10 is configured to engage with the lower inner surface of the lid peripheral wall 53 through an undercut. The lid member 50 is fixed to the cap body 10 via an arm portion 52c that extends radially outward from a single point in the circumferential direction at the upper end of the lid peripheral wall 53 (see Figures 2 and 3). Here, the radially outer end of the arm portion 52c is fixed to the cap body 10 via a hinge portion 11e. Therefore, the lid member 50 is rotatable around the hinge portion 11e relative to the cap body 10.

[0028] As shown in Figure 4, the lid member 50 can be locked to the outer circumferential wall 11 of the cap body 10 by fitting the lid engaging portion 11a of the outer circumferential wall 11 into the fitting hole 52a1 formed inside the pressing cylinder 52a.

[0029] As shown in Figures 1 and 2, when using the contents from the time of distribution or from when they are unused, the user first grasps the tab 52b of the lid member 50 and pulls the lid member 50 upward, rotating it about 270 degrees around the hinge 11e. Then, as shown in Figure 4, the lid engaging part 11a is fitted into the fitting hole 52a1 formed on the inside of the push-down cylinder 52a, thereby locking the top wall 52 of the lid member 50 to the side of the cap body 10 with the outer peripheral wall 11 of the cap body 10 aligned with the cap body 10.

[0030] In this embodiment, as described above, the diameter of the lid peripheral wall 53 is smaller than the diameter of the outer peripheral wall 11 of the cap body 10. Therefore, as shown in Figure 4, even when the lid member 50 is locked to the outer peripheral wall 11 of the cap body 10, the vertical length of the locked lid member 50 is short, so the height of the cap body 10 can be kept low.

[0031] Next, the user grasps the body 4c of the container body 2 from the upright position shown in Figures 1 and 2 and lifts it, changing its posture to an inverted position where the slit valve 30 is positioned below the body 4c. Then, from the inverted position shown in Figure 4, the slit valve 30 is directed in the direction of discharge of the contents, and the body 4c of the container body 2 is squeezed (compressed). This increases the internal pressure in the containment space S, and the valve body 31a is pushed upward (downward in Figure 4). This squeezing action of the body 4c causes the valve body 31a to elastically deform upward, opening the valve. The contents that had moved from the containment space S to the opening 4a of the container body 2 are temporarily stored in the liquid reservoir space R via the liquid reservoir opening 40a, and then discharged to the outside via the slit valve 30 as shown in Figure 4.

[0032] In this embodiment, a liquid reservoir wall 40 is positioned below the slit valve 30, forming a liquid reservoir space R between the slit valve 30 and the wall. The liquid reservoir wall 40 has a liquid reservoir opening 40a that connects the slit valve 30 to the containment space S. With this configuration, the contents that move from the containment space S toward the opening 4a due to the squeeze of the body portion 4c of the container body 2 are collected in the liquid reservoir space R through the liquid reservoir opening 40a. In this embodiment, the diameter of the liquid reservoir opening 40a is smaller than the diameter when the opening (slit 31b) of the slit valve 30 is open. Here, the diameter when the slit 31b of the slit valve 30 is open is the maximum size when open, and in this embodiment, it is the length of the cross-shaped cut. Therefore, the internal pressure in the containment space S, which is increased by squeezing the body portion 4c of the container body 2, is weakened by pressure loss due to flow resistance as the contents pass through the liquid reservoir opening 40a. Therefore, even if the body portion 4c of the container body 2 is strongly squeezed, a rapid increase in pressure in the slit valve 30 can be suppressed, making it easier to discharge a small amount of contents from the slit valve 30.

[0033] Furthermore, in this embodiment, because the liquid reservoir space R is filled with contents, the impact in the containment space S that occurs when, for example, the container 100 with a slit valve is dropped is blocked by the liquid reservoir space R and is not transmitted to the slit valve 30. Therefore, the occurrence of the so-called water hammer phenomenon can be suppressed.

[0034] In contrast, in Patent Document 1, a housing containing a compressible material is placed upstream of the slit valve. Therefore, when the body portion 4c of the container body 2 is strongly squeezed, the compressible material inside the housing is rapidly compressed, and the slit valve is suddenly opened during the subsequent expansion process of the compressible material, causing a large amount of contents to be forcefully discharged. In this embodiment, the contents are compressed directly without using a compressible material as in Patent Document 1, and a rapid increase in internal pressure in the liquid reservoir space R is suppressed, thus preventing the above phenomenon from occurring.

[0035] In this embodiment, the diameter of the liquid reservoir opening 40a is configured to be smaller than the diameter when the opening of the slit valve 30 (slit 31b) is open, but the embodiment is not limited to this. For example, the opening area of ​​the liquid reservoir opening 40a may be configured to be smaller than the maximum opening area when the opening of the slit valve 30 (slit 31b) is open. Furthermore, even if the liquid reservoir opening 40a is composed of multiple openings, and the sum of the opening areas of these multiple openings is smaller than the maximum opening area when the opening of the slit valve 30 (slit 31b) is open, a certain effect can be obtained.

[0036] When the user has finished dispensing a predetermined amount of contents, they release the squeeze of the body 4c. As a result, the slit valve 30 returns to its original shape due to its own rigidity and closes. Also, because the body 4c of the container body 2 returns to its original shape due to its own rigidity, negative pressure is generated inside the container body 2. This negative pressure causes the slit valve 30 to elastically deform downward (towards the container body 2) and open again, so that air is introduced into the container body 2 from the outside through the gap of the slit 31b. The user then places the container 100 with the slit valve in the inverted position shown in Figure 5, and brings the enlarged diameter portion 11c formed on the upper end of the outer peripheral wall 11 of the cap body 10 into contact with the mounting surface M. This allows the enlarged diameter portion 11c to function as legs, maintaining the container 100 with the slit valve in a stable inverted position suitable for storage.

[0037] As described above, this embodiment is a container 100 with a slit valve, comprising: a container body 2 having a mouth 4a, a body 4c and a bottom 4d to form a storage space S for contents; a cap body 10 having a cap opening 19g that leads to the storage space S and is attached to the mouth 4a; and a slit valve 30 fixed to the cap body 10, which closes the cap opening 19g and is opened by the positive pressure in the storage space S to dispense the contents in the storage space S. Below the slit valve 30, a liquid reservoir wall 40 is arranged to partition a liquid reservoir space R between itself and the slit valve 30, and a liquid reservoir opening 40a is formed in the liquid reservoir wall 40 that connects the slit valve 30 to the storage space S, and the opening area of ​​the liquid reservoir opening 40a is configured to be smaller than the maximum opening area of ​​the opening (slit 31b) of the slit valve 30. With this configuration, the internal pressure in the containment space S, which is increased by squeezing the body 4c of the container body 2, is weakened by pressure loss due to flow resistance as the contents pass through the liquid reservoir opening 40a. Therefore, even if the body 4c of the container body 2 is squeezed strongly, a rapid increase in pressure at the position of the slit valve 30 can be suppressed, making it easier to discharge small amounts of contents from the slit valve 30.

[0038] Furthermore, in this embodiment, a cover member 50 is provided to cover the slit valve 30 from above, and a cover engagement portion 11a for engaging and fixing the cover member 50 is provided on the outer circumferential surface of the cap body 10. By adopting this configuration, the cover member 50 can be locked to the outer circumferential wall 11 of the cap body 10, making it easier to maintain an inverted position.

[0039] Furthermore, in this embodiment, the lid member 50 is provided with a lid periphery wall 53 having a smaller diameter than the outer circumferential wall 11 of the cap body 10, and the lid periphery wall 53 is configured to engage with an inner circumferential wall 19b provided radially inward of the outer circumferential wall 11. By adopting this configuration, even when the lid member 50 is locked to the outer circumferential wall 11 of the cap body 10, the vertical length of the locked lid member 50 is short, so the height of the cap body 10 can be kept low.

[0040] Furthermore, in this embodiment, the lid peripheral wall 53 is configured to be connected to the outer peripheral wall 11 via the arm portion 52c and the hinge portion 11e. By adopting this configuration, the lid member 50, which has a smaller diameter than the outer peripheral wall 11 of the cap body 10, can be supported so as to be rotatable around the hinge portion 11e.

[0041] Furthermore, in this embodiment, the outer peripheral wall 11 of the cap body 10 extends above the slit valve 30, and the upper end of the outer peripheral wall 11 is configured to have an enlarged diameter portion 11c that functions as a leg when the container 100 with the slit valve is in an inverted position. By adopting this configuration, after opening the lid member 50 and engaging it with the lid engaging portion 11a, the container 100 with the slit valve can be placed in an inverted position and the enlarged diameter portion 11c can function as a leg. Therefore, the container 100 with the slit valve can maintain a stable inverted position.

[0042] While this disclosure has been described based on various drawings and embodiments, it should be noted that those skilled in the art will find it easy to make various modifications and alterations based on this disclosure. Therefore, it should be noted that these modifications and alterations are included within the scope of the present invention. For example, the functions included in each component can be rearranged in a logically consistent manner, and multiple components can be combined into one or separated. It should be understood that these are also included within the scope of the present invention.

[0043] For example, in this embodiment, the slit valve 30 is configured to be convex downwards, but the embodiment is not limited to this, and the slit valve 30 may be configured to be convex upwards or to be flat.

[0044] Furthermore, in this embodiment, a liquid reservoir opening 40a is formed in the cap body 10 using a liquid reservoir wall 40, but the embodiment is not limited to this, and the liquid reservoir opening 40a may be integrally formed in the cap body 10. [Examples]

[0045] To confirm the effectiveness of the slit valve-equipped container 100 of this disclosure, Examples 1 to 3 and comparative examples were prepared in which the opening diameter and opening area of ​​the liquid reservoir opening 40a were changed, as shown in Table 1, and the feasibility of discharging small amounts of contents was confirmed.

[0046] [Table 1]

[0047] In "Examples 1 to 3," where the opening area of ​​the liquid reservoir opening 40a was smaller than the maximum opening area of ​​the slit valve 30, after accumulating the contents in the liquid reservoir space R, the contents, which were dish soap, could be easily dispensed by adjusting the pressing force of the body 4c. This allowed for the easy dispensing of small amounts of contents (0.5 to 0.8 mL) corresponding to a small load of washing. In contrast, in the "Comparative Example," where the opening area of ​​the liquid reservoir opening 40a was larger than the maximum opening area of ​​the slit valve 30, it was difficult to adjust the amount of contents dispensed. Even when adjusting the pressing force of the body 4c, a quantity of contents (approximately 1.5 mL) larger than the small amount corresponding to a small load of washing was sometimes dispensed. [Explanation of Symbols]

[0048] 1. Container cap 2. Container body 4a Mouth 4b Male threaded section 4c Torso 4d bottom 10 Cap body 11 Peripheral wall 11a Lid engaging part 11c Expanded diameter part 11e Hinge 12a Female thread section 19. Ceiling Wall 19b Inner wall 19d protrusion 19e First recess 19f Second recess 19f1 Locking part 19g Cap opening 30 Slit valve 31a Valve body 31b Slit 31c Peripheral wall 31d Valve fixing part 40 Liquid reservoir wall 40a Liquid reservoir opening 40b open tube 40c Liquid reservoir bottom wall 40d Liquid reservoir fixing part 50 Lid member 52 Top Wall 52a Pressing cylinder 52a1 Fitting hole 52b Thumb part 52c Arm section 53 Lid peripheral wall 100 containers with slit valves M Mounting surface O center axis R Liquid reservoir space S Containment space

Claims

1. A container body having a mouth, a body, and a bottom, forming a space for storing contents, A cap body having a cap opening that leads to the aforementioned storage space and which is fitted onto the opening, A slit valve is fixed to the cap body, which closes the cap opening and is opened by the positive pressure in the containment space to dispense the contents in the containment space. A container equipped with a slit valve, Below the slit valve, a liquid reservoir wall is positioned to partition a liquid reservoir space between itself and the slit valve. The liquid reservoir wall has a liquid reservoir opening that penetrates the liquid reservoir wall vertically and connects the slit valve to the housing space, and the slit valve and the liquid reservoir opening are always in communication. A container with a slit valve, wherein the opening area of ​​the liquid reservoir opening is smaller than the maximum opening area of ​​the slit valve opening.

2. The slit valve is further provided with a cover member that covers it from above. The container with a slit valve according to claim 1, wherein the outer circumferential surface of the cap body is provided with an engaging portion for engaging and fixing the lid member.

3. The lid member has a lid portion periphery wall having a smaller diameter than the outer periphery wall of the cap body. The container with a slit valve according to claim 2, wherein the periphery wall of the lid is engageable with an inner periphery wall provided radially inward of the periphery wall.

4. The container with a slit valve according to claim 3, wherein the periphery wall of the lid is connected to the outer periphery wall via an arm portion and a hinge portion.

5. The container with a slit valve according to any one of claims 1 to 4, wherein the outer peripheral wall of the cap body extends to above the slit valve, and the upper end of the outer peripheral wall is provided with an enlarged diameter portion that functions as a leg when the container with the slit valve is in an inverted position.

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