Cap and container

Abstract

To be able to inhibit a content from unintentionally leaking to the outside of a cap body through a small hole, even when a container which has no discharge valve is handled in a state where a lid body is removed from the cap body and the small hole is opened.SOLUTION: A cap 13 includes: a cap body 16 which is mounted on a mouth part 12 of a container body 11, and in which a small hole 15 is formed which can discharge the content; and a lid body 17. At the mouth part 12, the cap body 16 includes: an exterior cylinder 41 externally attached in a state of protruding upward from the mouth part 12; and a first cylinder 43 fitted in the mouth part 12. At the first cylinder 43, a connection cylinder 65 extending upward, a topped cylindrical pedestal cylinder 66 positioned further inside in the radial direction than the connection cylinder 65, and protruding upward are formed. At a top wall 69 of the pedestal cylinder 66, the small hole 15 is formed penetrating in the vertical direction.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a cap and a container. [Background technology]

[0002] Conventionally, double containers have been known, such as that shown in Patent Document 1 below, which include an inner container that reduces in volume as the contents contained therein decrease, and an outer container in which the inner container is housed, and which include a container body having a mouth, a body, and a bottom arranged in this order from top to bottom along the axial direction of the container, a cap body that is attached to the mouth of the outer container and has a discharge hole for the contents, and a lid that is detachably screwed onto the cap body and closes the discharge hole, and in which an outside air inlet hole is provided in the container body to introduce outside air between the outer container and the inner container as the contents decrease. As a double container, for example, as shown in Patent Document 2 below, a configuration in which the container is connected to a pipe and the contents are supplied into the pipe through a discharge hole is also known. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2017-197252 [Patent Document 2] Japanese Patent Application Laid-Open No. 2005-335713 Summary of the Invention [Problem to be solved by the invention]

[0004] When the lid body is removed from the cap body and the discharge hole is left open, and the container is handled, for example, by connecting it to piping as described in Patent Document 2, there is a risk that the contents may unintentionally leak outside the cap body through the discharge hole if there is no discharge valve to open and close the discharge hole.

[0005] To provide a cap and a container that can prevent the contents from unintentionally leaking outside the cap body through a small hole, which is a discharge hole, even when the container without a discharge valve is handled with the lid body removed from the cap body and the small hole, which is a discharge hole, open. [Means for solving the problem]

[0006] A cap according to one aspect of the present invention comprises a cap body that is attached to the mouth of a container body that contains contents and has a small hole formed therein through which the contents can be dispensed, and a lid body that is removably screwed onto the cap body, wherein the cap body comprises an outer tube that is fitted onto the mouth of the container body in a state where it protrudes upward from the mouth, and a first tube that is fitted into the mouth of the container body, and the lid body is screwed onto an upper part of the outer tube that protrudes upward from the mouth of the container body, and the The first tube is formed with a connecting tube extending upward and a base tube that is located radially inward from the connecting tube and has a cylindrical shape with a top that protrudes upward, and the small hole is formed in the top wall of the base tube in the vertical direction. The lid body is provided with a second tube that is cylindrical with a bottom inside the connecting tube, and a retaining tube is formed on the bottom wall of the second tube that protrudes downward and surrounds the base tube in the radial direction, and a gasket is arranged inside the retaining tube to abut against the top wall of the base tube and seal the small hole.

[0007] The small hole for discharging the contents is formed in the top wall of the base tube, which is located further radially inward than the connecting tube formed on the first tube provided at the mouth of the container body.This means that the inner diameter of the small hole is kept small, and combined with the small hole being surrounded from the radial outside by the connecting tube, this prevents the contents from unintentionally leaking outside the cap body through the small hole, even when handling a container that does not have a discharge valve with the lid body removed from the cap body and the small hole open. A gasket that abuts against the top wall of the base tube and seals the small hole is arranged inside the retaining tube formed on the bottom wall of the second tube of the lid body, so that the small hole can be reliably sealed when the lid body is attached to the cap body.

[0008] The number of the small holes may be two or more.

[0009] When forming small holes, thin film-like pieces may be generated. Since there are two or more small holes formed in the top wall of the base tube, it is possible to prevent all the small holes from being blocked by thin film pieces.

[0010] The inner diameter of the small hole is preferably 1.0 mm or less, more preferably 0.5 mm or less, and even more preferably 0.3 mm or less.

[0011] By making the inner diameter of the small hole 0.3 mm or less, it is possible to reliably prevent the contents from unintentionally leaking out of the cap body through the small hole.

[0012] A container according to one aspect of the present invention comprises a cap according to one aspect of the present invention and a container body that contains contents, with the cap attached to the opening of the container body.

[0013] Since the cap is equipped with a cap according to one aspect of the present invention, even when a container without a discharge valve is handled with the lid body removed from the cap body and the small hole open, the contents can be prevented from unintentionally leaking outside the cap body through the small hole.

[0014] The upper limit of the full capacity of the container body is preferably 2 L or less, more preferably 1 L or less, even more preferably 700 ml or less, and even more preferably 600 ml or less.

[0015] Since the full capacity of the container body is 600 ml or less, the container is easy to handle, and even when handling a container that does not have a discharge valve with the lid body removed from the cap body and the small hole open, unintentional leakage of the contents outside the cap body through the small hole can be further prevented. [Effects of the Invention]

[0016] According to one aspect of the present invention, even when a container without a discharge valve is handled with the lid body removed from the cap body and the small hole open, the contents can be prevented from unintentionally leaking outside the cap body through the small hole. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a front view, partly in vertical section, of a container shown as an embodiment of the present invention. [Figure 2] 2 is a front view of a vertical cross section of a part of the main part of the container shown in FIG. 1. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0018] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 1, the container 1 according to this embodiment includes a cylindrical container body 11 with a bottom that accommodates the contents, and a cap 13 according to this embodiment that is attached to the mouth 12 of the container body 11. As shown in FIG. 2, the cap 13 includes a cap body 16 that is attached to the mouth 12 of the container body 11 and that has a small hole 15 formed therein through which the contents in the container body 11 can be dispensed, a lid 17 that is detachably screwed onto the cap body 16, and a packing 18 that closes the small hole 15 in the cap body 16.

[0019] The container body 11, cap body 16, lid body 17, and gasket 18 are arranged coaxially with the common axis O. Therefore, the cap 13 is also arranged coaxially with the common axis O. Hereinafter, the direction along the common axis O will be referred to as the vertical direction, the direction intersecting the common axis O when viewed from the vertical direction will be referred to as the radial direction, and the direction going around the common axis O will be referred to as the circumferential direction. In addition, in the vertical direction, the side where the cap 13 is located relative to the bottom 26 of the container body 11 will be referred to as the upper side, and the side where the bottom 26 is located relative to the cap 13 will be referred to as the lower side.

[0020] The container body 11 comprises an inner container 21 that shrinks and deforms as the contents stored therein decrease, and an outer container 22 in which the inner container 21 is housed, and as shown in Figure 1, a mouth portion 12, a body portion 25, and a bottom portion 26 are arranged in this order from top to bottom along the vertical direction.

[0021] The mouth 12 is generally cylindrical. As shown in Fig. 2, a plurality of rib-like protrusions 31 protruding radially outward from the outer container 22 are formed at intervals in the circumferential direction on the outer periphery of the portion of the outer container 22 that constitutes the mouth 12. A circular flange 32 protruding radially outward is formed below the protrusions 31 on the outer periphery of the portion of the outer container 22 that constitutes the mouth 12.

[0022] As shown in FIG. 1, the body 25 is cylindrical and extends downward from the lower end of the mouth 12 .

[0023] The bottom 26 closes the lower end of the body 25. A slit 34 is formed in the portion of the outer container 22 that forms the bottom 26. The slit 34 is an outside air inlet that introduces outside air between the outer container 22 and the inner container 21 when the contents in the inner container 21 shown in Figure 2 decrease.

[0024] The full capacity of the container body 11, i.e., the full capacity of the inner container 21, is 600 ml or less. The upper limit of the full capacity of the container body 11 is preferably 2 L or less, more preferably 1 L or less, even more preferably 700 ml or less, and even more preferably 600 ml or less.

[0025] The cap body 16 includes an outer tube 41 that is fitted to the mouth 12 of the container body 11 while protruding upward from the mouth 12, an extension portion 42 that extends radially inward from a vertically intermediate position of the outer tube 41, and a bottomed, cylindrical first tube 43 that protrudes downward from the radially inner edge of the extension portion 42. The extension portion 42 of the cap body 16 abuts from above against the upper end of the mouth 12 of the container body 11. The first tube 43 is positioned radially inward of the outer tube 41 and is fitted liquid-tightly within the mouth 12 of the container body 11. The first tube 43 is fitted liquid-tightly into a portion that constitutes the mouth 12 of the inner container 21.

[0026] The outer tube 41 has an upper upper constituent portion 45 that protrudes upward from the extending portion 42, and a lower lower constituent portion 46 that protrudes downward from the extending portion 42. The upper constituent portion 45 protrudes upward from the mouth portion 12. The outer tube 41 has a male thread 48 formed on the outer periphery of the radially outer side of the upper constituent portion 45. The outer tube 41 has a locking flange portion 49 that protrudes radially outward at the top of the lower constituent portion 46 that fits into the mouth portion 12 of the container body 11. The outer tube 41 has a plurality of protrusions 51 formed at intervals in the circumferential direction on the radially inner side of the lower constituent portion 46. The protrusions 51 fit between the protrusions 31 of the mouth portion 12 to restrict circumferential rotation of the cap body 16 relative to the mouth portion 12. The lower structural portion 46 of the outer tube 41 has an engagement portion 52 formed below the protrusion 51 that engages with the flange portion 32 of the mouth portion 12 from below, preventing the cap body 16 from coming off the mouth portion 12.

[0027] The first cylinder 43 has a side wall 61 on the radially outer side and a bottom wall 62 on the radially inner side of the side wall 61 . The side wall 61 is cylindrical and fits fluid-tightly into the mouth portion 12 . The bottom wall 62 has a bottom wall main body 64 that extends radially inward from the lower end of the side wall 61, a connecting tube 65 that is located radially inward from the side wall 61 and extends upward from the bottom wall main body 64, and a topped cylindrical base tube 66 that is located radially inward from the connecting tube 65 and protrudes upward from the bottom wall main body 64. The base tube 66 is formed in the radial center of the cap body 16. The bottom wall 62 of the first tube 43 may be formed from the upper end or the vertical middle portion of the side wall 61.

[0028] The base tube 66 has a cylindrical side wall 68 that protrudes upward from the bottom wall main body 64, and a top wall 69 that extends radially inward from the upper edge of the side wall 68. The above-mentioned small holes 15 are formed in the top wall 69 of the base tube 66, penetrating the top wall 69 in the vertical direction. The small holes 15 communicate with the interior of the inner container 21. Two small holes 15 are formed in the top wall 69 of the base tube 66. The inner diameter of each small hole 15 is 0.3 mm or less. The inner diameter of each small hole is preferably 1.0 mm or less, more preferably 0.5 mm or less, and even more preferably 0.3 mm or less. Two or more small holes 15 may be formed.

[0029] The lid body 17 has a lid body main body 71, an annular portion 72, a fragile portion 73 connecting the lid body main body 71 and the annular portion 72, and a locking piece 74 extending radially inward from the annular portion 72 and abutting against the locking flange portion 49 of the cap body 16 from below to be locked to the locking flange portion 49.

[0030] The lid body main body 71 includes a peripheral wall 76 that is threadedly attached to the upper constituent portion 45 of the outer tube 41, a lid portion 77 that extends radially inward from the upper edge of the peripheral wall 76, and a bottomed, cylindrical second tube 78 that protrudes downward from the inner peripheral edge of the lid portion 77 radially inward of the peripheral wall 76 and is inserted into the connecting tube 65 of the cap body 16 with a gap between it and the connecting tube 65. When the lid body 17 is threadedly attached to the upper constituent portion 45 of the outer tube 41 at the peripheral wall 76, the lid portion 77 faces the upper constituent portion 45 with a gap between them. A female thread 80 that threads onto the male thread 48 of the cap body 16 is formed on the radially inner side of the peripheral wall 76, and the annular portion 72 is connected to the lower end of the peripheral wall 76 via a fragile portion 73. Here, since there is a gap between the second tube 78 and the connecting tube 65 and there is a gap between the lid portion 77 and the upper constituent portion 45, the internal pressure inside the lid body 17 can be released to the outside. Furthermore, since there is a gap between the second tube 78 and the connecting tube 65, the opening torque between the second tube 78 and the connecting tube 65 when the lid body 17 is opened can be reduced. Note that the second tube 78 may be fitted liquid-tight with the connecting tube 65. In other words, the gap between the second tube 78 and the connecting tube 65 is not basically sealed liquid-tight, but it may be sealed liquid-tight.

[0031] The second tube 78 has a radially outer sidewall 81 extending from the lid portion 77 and a bottom wall 82 extending radially inward beyond the lower end of the sidewall 81. The sidewall 81 is cylindrical, and the bottom wall 82 is disk-shaped. A retaining tube 83 is formed on the bottom wall 82, protruding downward and radially surrounding the base tube 66 of the cap body 16. A gasket 18 is disposed within the retaining tube 83. The gasket 18 is disk-shaped and abuts against the top wall 69 of the base tube 66 to seal the small hole 15. A locking portion 84 is formed at the bottom of the retaining tube 83, protruding radially inward and preventing the gasket 18 from falling out of the retaining tube 83. The retaining tube 83 has a vertical gap around its entire circumference between it and the bottom wall main body 64 of the first tube 43, and a radial gap around its entire circumference between it and the base tube 66.

[0032] The container 1 has a cap 13 and a container body 11 for accommodating the contents, and the cap 13 is attached to the opening 12 of the container body 11.

[0033] The container 1 is unscrewed by rotating the lid body 71 of the cap 13 circumferentially toward the outer tube 41 toward the loosening side. At this time, the lid body 71 moves upward relative to the outer tube 41. Meanwhile, the locking piece 74, which is locked to the locking flange 49 of the mouth 12 of the container body 11, restricts the upward movement of the annular portion 72, causing the fragile portion 73 to break and separating the lid body 71 and the annular portion 72. When the lid body 71 moves upward relative to the outer tube 41, the retaining tube 83 of the second tube 78 of the lid body 71 separates from the base tube 66 in the axial direction, releasing the retained packing 18 from the top wall 69 of the base tube 66 and opening the small hole 15. The second tube 78 of the lid body 71 then slides upward out of the connecting tube 65 of the cap body 16, and the lid body 71 is detached from the cap body 16.

[0034] Thereafter, when the container 1 is placed sideways and attached to an attachment member of a fluid device (not shown), this attachment member fits into the connecting tube 65 of the cap body 16. The fluid device creates a negative pressure in the connecting tube 65, sucking the additive liquid contained in the inner container 21 of the container body 11 through the small hole 15 of the cap body 16, and supplies the additive liquid in the container 1 to the liquid circulating in the piping or the like.

[0035] As described above, according to the cap 13 of this embodiment, the small hole 15 for discharging the contents is formed in the top wall 69 of the base tube 66, which is located further radially inward than the connecting tube 65 formed on the first tube 43 provided in the mouth 12 of the container body 11, and therefore the inner diameter of the small hole 15 is kept small. Combined with the fact that the small hole 15 is surrounded from the radial outside by the connecting tube 65, even if the container 1 that does not have a discharge valve is handled with the lid body 17 removed from the cap body 16 and the small hole 15 open, it is possible to prevent the contents from unintentionally leaking outside the cap body 16 through the small hole 15.

[0036] A gasket 18 that abuts against the top wall 69 of the base tube 66 and seals the small hole 15 is disposed inside a retaining tube 83 formed on the bottom wall 82 of the second tube 78 of the lid body 17, so that the sealing of the small hole 15 can be reliably ensured when the lid body 17 is attached to the cap body 16.

[0037] According to the cap 13, the number of small holes 15 formed in the top wall 69 of the base cylinder 66 is two or more, so that it is possible to prevent all of the small holes 15 from being blocked by thin pieces.

[0038] According to the cap 13, the inner diameter of the small hole 15 is 0.3 mm or less, which reliably prevents the contents from unintentionally leaking out of the cap body 16 through the small hole 15. That is, if the diameter of the small hole 15 is set to 0.3 mm, the amount of leakage and dripping can be reduced even if the container 1 is tilted when installed in a fluidic device (not shown). In contrast, if the diameter of the small hole 15 is set to more than 0.3 mm, for example 0.5 mm, the amount of leakage and dripping increases when the container 1 is tilted.

[0039] According to the container 1, since it is equipped with a cap 13, even if the container 1, which does not have a discharge valve, is handled with the lid body 17 removed from the cap body 16 and the small hole 15 open, the contents can be prevented from unintentionally leaking outside the cap body 16 through the small hole 15.

[0040] According to the container 1, the full capacity of the container body 11 is 600 ml or less, making the container 1 easy to handle. Therefore, even if the container 1, which does not have a discharge valve, is handled with the lid body 17 removed from the cap body 16 and the small hole 15 open, the contents can be further prevented from unintentionally leaking outside the cap body 16 through the small hole 15. [Explanation of symbols]

[0041] 1 container 11 Container body 12 Mouth 13 Cap 15 small hole 16 Cap body 17 Lid 18 Packing 41 Exterior tube 43 1st tube 65 Connecting tube 66 Base tube 69 Top Wall 78 2nd cylinder 82 Bottom wall 83 Holding tube

Claims

1. a cap body that is attached to the mouth of a container body that contains contents and has a small hole formed therein through which the contents can be discharged; a lid body detachably screwed onto the cap body, The cap body is an outer tube that is fitted to the mouth of the container body in a state where it protrudes upward from the mouth; a first cylinder fitted into the mouth of the container body; The lid is screwed onto an upper portion of the outer tube that protrudes upward from the mouth of the container body, The first cylinder has: a connecting tube extending upward; a base cylinder having a top and a cylindrical shape that is located radially inward of the connecting cylinder and protrudes upward, The small hole is formed in the top wall of the base cylinder in the vertical direction, The lid body includes a second cylinder having a bottom inside the connecting cylinder, A retaining tube is formed on the bottom wall of the second tube, protruding downward and surrounding the base tube radially, and a gasket is disposed within the retaining tube to abut against the top wall of the base tube and seal the small hole.

2. The cap according to claim 1 , wherein the number of the small holes is two or more.

3. 2. The cap according to claim 1, wherein the small hole has an inner diameter of 0.3 mm or less.

4. A container comprising the cap according to any one of claims 1 to 3 and a container body for accommodating contents, the cap being attached to the opening of the container body.

5. 5. The container according to claim 4, wherein the full capacity of the container body is 600 ml or less.

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