JP4841147B2 - Cap and container containing it - Google Patents

Description

It relates container This invention including the cap and it more particularly relates to a cap and a container comprising the same and a middle and an outer stopper plug.

2. Description of the Related Art Conventionally, a container in which a cap having an outer plug and an inner plug is attached to a container body is known as a container for storing an item such as a medicine. As an example of a cap used for such a container, for example, in Patent Document 1, a knurled portion is provided on each of the inner side surface of the outer plug and the side surface of the inner plug, and the knurled portions are fitted to each other to fit inside the outer plug. Discloses a cap for fixing the inner stopper. In the cap of Patent Document 1, the inner plug and the opening are formed by covering the upper edge of the opening of the container main body with the covering portion of the inner plug and fitting the fitting portion provided in the covering portion of the inner plug into the opening of the container main body. The part is closely attached to prevent the contents from leaking from the container body.
JP 2001-301804 A

However, in the cap of Patent Document 1, when the cap is removed from the container body, the force for pulling the inner plug upward (the force for pulling the inner plug from the opening) is smaller than the adhesion force between the inner plug and the opening. The inner plug may come off the outer plug and remain in the opening. Since the inner plug that is in close contact with the opening is difficult to remove, there is a possibility that the contents in the container body may be spilled when the user removes the inner plug remaining in the opening.
Another object of the present invention is to provide a container comprising a cap and it can be detached inner plug reliably from the container body together with the outer plug.

In order to achieve the above-described object, the cap according to claim 1 includes a cylindrical portion, a top plate provided at one end of the cylindrical portion, and a plurality of first convex portions provided on an inner surface of the cylindrical portion. A cap attached to the container main body by screwing the outer plug into the opening of the container main body. The outer plug has a covering portion that is disposed between the top plate and the plurality of first convex portions and covers the upper edge of the opening, and the outer plug removes the inner plug when the cap is attached to the container body. A plurality of abutments provided on the inner surface between the top plate and the plurality of first convex portions so as to rotate with the outer cap when the cap is removed from the container body without being rotated with the cap, and in contact with the covering portion . have a ratchet portion, respectively between the first convex portions adjacent in the plurality of first protrusions, contact the inner surface And a ratchet portion is provided one above each of the plurality of first protrusions, and rotates the outer cap when the cap is attached to the container body. When the direction is the A1 direction and the direction in which the outer cap is rotated when the cap is removed from the container main body is the A2 direction, the ratchet portion is closer to the notch on the A2 direction side than the notch on the A1 direction side Are arranged respectively.

The cap according to claim 2 is the cap according to claim 1, wherein each of the plurality of ratchet portions is configured by arranging a plurality of second convex portions .

According to a third aspect of the present invention, in the cap according to the first or second aspect, the lower corner portion of the first convex portion is chamfered.

A container according to a fourth aspect includes a container main body and the cap according to any one of the first to third aspects attached to an opening of the container main body .

In the cap according to the first aspect, the covering portion of the inner plug is disposed between the top plate and the plurality of first convex portions in the outer plug. As a result, when the cap is removed from the container main body, the covering portion of the inner plug is caught by the plurality of first convex portions of the outer plug, and the inner plug can be reliably removed from the container main body together with the outer plug. In addition, when the cap is attached to the container body, the inner plug does not rotate together with the outer plug by sliding the cover portion of the inner plug, and when the cap is removed from the container body, the inner plug covering portion is The inner plug rotates together with the outer plug by being hooked on. Thus, when the cap is attached to the container body, the inner stopper is not rotated, so that the inner stopper is prevented from being twisted, and the inner stopper is securely adhered to the opening of the container body by the downward pressing applied from the outer stopper. Can be made. That is, leakage of the contents from the container body can be prevented. In addition, since the cap can be attached to the container body without rotating the inner stopper, the generation of waste due to friction between the inner stopper and the opening when attaching the cap is suppressed, and the introduction of waste into the contents is suppressed. Can do. Further, by rotating the inner plug when removing the cap from the container main body, the adhesion between the inner plug and the opening can be weakened, and the inner plug can be removed from the container main body together with the outer plug more reliably.

Usually, when a cap including an outer plug and an inner plug is attached to the container main body, the inner plug is placed in the opening of the container main body, and then the outer plug is put on the opening and screwed. In the cap according to claim 3 , the lower end portion of the first convex portion of the outer plug is chamfered so that the covering portion of the inner plug is the first convex portion when the outer plug is screwed into the opening. The lower end portion of the sliding member is inserted between the top plate of the sliding outer plug and the first convex portion. Therefore, the covering portion of the inner plug can be easily disposed between the top plate of the outer plug and the first convex portion.

In the container according to claim 4 , since the inner stopper can be reliably removed from the container main body together with the outer stopper, the operation of removing the inner stopper remaining in the opening is not performed by the user, and spillage of the contents Can be prevented. Therefore, the present invention is suitably used for containers that contain dangerous drugs or expensive drugs.

According to the present invention, the cap and the container containing it can be removed inner plug reliably from the container body together with the outer plug is obtained.

Embodiments of the present invention will be described below with reference to the drawings.
Referring to FIGS. 1 and 2, a container 10 according to an embodiment of the present invention includes a cap 12 and a container body 14. The cap 12 is attached to the container body 14 by screwing an outer plug 18 into the opening 16 of the container body 14. Here, it is assumed that the cap 12 is attached to the container main body 14 by rotating the outer plug 18 in the clockwise direction as viewed from above (arrow A1 direction: see FIG. 5). Further, it is assumed that the cap 12 is removed from the container body 14 by rotating the outer plug 18 counterclockwise as viewed from above (arrow A2 direction: see FIG. 5).

First, the cap 12 will be described with reference to FIGS.
As shown in FIG. 2, the cap 12 includes an outer plug 18 that is screwed into the opening 16 and an inner plug 20 that is disposed in the outer plug 18.

  As shown in FIGS. 3 and 4, the outer plug 18 includes a substantially cylindrical tubular portion 22 and a top plate 24 provided so as to cover one end of the tubular portion 22.

  An internal thread portion 26 is provided on the inner side surface 22a of the tubular portion 22 from the vicinity of the opening end to the center and slightly upward. The female thread portion 26 is provided by disposing a plurality of protrusions 28 in an intermittent spiral shape as a whole. The plurality of protrusions 28 are each formed in an arc shape when viewed from below, and are provided in an annular shape having three notches as a whole (see FIG. 4).

  Further, a plurality (three in this case) of convex portions 30 are provided above the internal thread portion 26 of the inner surface 22a. Each convex portion 30 is disposed above the projection 28 of the female screw portion 26 and is formed in an arc shape that is slightly larger than the projection 28 when viewed from below. Accordingly, the three convex portions 30 are provided in an annular shape having three cutouts as a whole when viewed from below. Each convex part 30 is provided with a slope 30a by chamfering the lower side corner part. As can be seen from FIG. 3, the lower side corners of the convex portions 30 are chamfered so that the inclined surface 30 a is inclined 30 ° downward with respect to the top plate 24.

  Further, a plurality of (here, three) ratchet portions 32 are provided on the inner surface 22 a between the top plate 24 and the convex portion 30. One ratchet portion 32 is arranged above each of the three convex portions 30 (see FIG. 4).

As shown in FIG. 5, each ratchet portion 32 is configured by arranging a plurality of (here, eight) convex portions 34. Here, each convex portion 34 is formed such that ∠POP = 5 ° at the center point O of the cylindrical portion 22 and the points P at both ends of the convex portion 34. Therefore, ∠P ₁ OP ₂ = 40 ° at the center point O of the cylindrical portion 22, the start point P ₁ of the ratchet portion 32, and the end point P ₂ of the ratchet portion 32. Further, at the center point O of the cylindrical portion 22 and the start points P ₁ of the two ratchet portions 32 arranged in the circumferential direction (arrow A1 direction and arrow A2 direction), ∠P ₁ OP ₁ = 120 °. That is, the three ratchet portions 32 are provided so as to be spaced apart at equal intervals.

  Each ratchet portion 32 is provided so as to be in contact with a covering portion 36 (described later) of the inner plug 20. As shown in FIGS. 6A and 6B, each convex portion 34 of the ratchet portion 32 is formed in a substantially right triangle shape in cross section, and a sliding surface 34a on the arrow A1 direction side and a radial direction (arrow B direction). ) And the engagement surface 34b on the arrow A2 direction side. Each convex part 34 is arrange | positioned so that the top part may be difficult to cover the cover part 36 of the inner plug 20 (refer FIG. 5).

  On the other hand, as shown in FIG. 5, a knurled portion 35 is provided on the outer surface 22 b of the cylindrical portion 22 by arranging convex portions having a substantially isosceles triangular cross section without gaps. This facilitates the attachment of the cap 12 to the container body 14 and the removal of the cap 12 from the container body 14.

  As the material of the outer plug 18, for example, a synthetic resin such as polypropylene, cyclic olefin, cyclic polyolefin, polymethylpentene, polyethylene, and polycarbonate is used.

  As shown in FIG. 2, the inner plug 20 has a substantially disc-shaped covering portion 36. In a state where the cap 12 is fixed to the container body 14, the covering portion 36 is disposed between the top plate 24 and the convex portion 30 in the outer plug 18, and an upper edge 48 a (described later) of the opening portion 16 is formed by its bottom surface. cover. On the upper surface of the covering portion 36, a contact portion 37 that is pressed against the top plate 24 of the outer plug 18 in a state where the cap 12 is fixed to the container body 14 is provided. In addition, a substantially cylindrical fitting portion 38 that is fitted into the opening 16 of the container main body 14 when the cap 12 is attached to the container main body 14 is provided on the bottom surface of the covering portion 36.

  As the material of the inner plug 20, a flexible material such as butyl rubber or a thermoplastic elastomer is used.

  In the cap 12 configured as described above, first, the fitting portion 38 of the inner plug 20 is fitted into the opening portion 16 of the container main body 14 when being attached to the container main body 14. Then, the outer plug 18 is put on the opening 16 to which the inner plug 18 is attached and is rotated in the direction of the arrow A1, so that the covering portion 36 of the inner plug 20 slides on the inclined surface 30a of the convex portion 30 of the outer plug 18 and the outer plug 18 is rotated. Between the top plate 24 and the projection 30. When the outer plug 18 is rotated in the direction of the arrow A1 in a state where the covering portion 36 is disposed between the top plate 24 and the protruding portion 30, the sliding surface 34a of each protruding portion 34 that is difficult to be covered with the side surface 36a of the covering portion 36 is covered. It slides on the side surface 36a of the part 36 {refer Fig.6 (a)}. As described above, in the cap 12, each ratchet portion 32 slides on the side surface 36 a of the covering portion 36, so that when the cap 12 is attached to the container body 14, the inner plug 20 is not rotated together with the outer plug 18 in the direction of arrow A <b> 1. .

  On the other hand, when the cap 12 is removed from the container main body 14, the outer plug 18 is rotated in the direction of the arrow A2, so that the side surface 36a of the covering portion 36 is difficult to engage with the side surface 36a of the covering portion 36. 34b is hooked (engaged) {see FIG. 6 (b)}. As described above, in the cap 12, when the side surface 36 a of the covering portion 36 is hooked on each ratchet portion 32, the inner plug 20 is rotated together with the outer plug 18 in the direction of arrow A <b> 2 when the cap 12 is removed from the container body 14. Can do. Further, when the cap 12 is detached from the container main body 14, the cover portion 36 is hooked on the convex portion 30 of the outer plug 18 that moves upward in accordance with the rotation in the direction of arrow A <b> 2. And can be moved upward.

Next, the container body 14 will be described with reference to FIGS. 2 and 7.
At one end of the container main body 14 formed in a hollow, substantially cylindrical shape, an opening 16 into which the outer plug 18 of the cap 12 is screwed is provided. In the container main body 14, for example, an accommodation L that is a liquid medicine or the like is accommodated. As a material of the container body 14, for example, a synthetic resin such as polypropylene, cyclic olefin, cyclic polyolefin, polymethylpentene, polyethylene, polyethylene terephthalate, polycarbonate, polysulfone, or polyethersulfone, or glass is used.

  A male screw portion 40 corresponding to the female screw portion 26 of the outer plug 18 is provided at substantially the center of the outer surface of the opening 16. The male screw portion 40 is provided by forming a protrusion 42 on the outer surface of the opening portion 16 in a spiral shape. By providing the male screw portion 40 in the opening portion 16 in this manner, the female screw portion 26 and the male screw portion 40 of the outer plug 18 can be screwed together, and the outer plug 18 can be screwed into the opening portion 16. Further, the opening 16 is formed so that the thickness of the upper end 44 is reduced by reducing the outer diameter of the upper end 44. In a state where the cap 12 is fixed to the container main body 14, the inner surface of the opening 16 and the outer surface of the fitting portion 38 are in close contact with each other, and the upper edge 44a of the upper end portion 44 is difficult to get into the bottom surface of the covering portion 36 (see FIG. 2). .

  In such a container 10, by using the cap 12 having the convex portion 30, when the cap 12 is removed from the container main body 14, the covering portion 36 of the inner plug 20 is caught on the convex portion 30 of the outer plug 18, and the opening portion The inner plug 20 that is in close contact with 16 is pulled out from the opening 16. Therefore, the inner stopper 20 can be reliably removed from the container body 14 together with the outer stopper 18.

  Further, in the cap 12 that is rotated in the direction of the arrow A1 when being attached to the container body 14, the sliding surface 34a of each convex portion 34 of each ratchet portion 32 slides on the side surface 36a of the covering portion 36, whereby the inner plug 20 is removed. Do not rotate with the outer plug 18 {see FIG. 6A}. Thereby, the inner plug 20 is prevented from being twisted, and the bottom surface of the covering portion 36 is firmly brought into close contact with the upper edge 44a of the opening portion 16 of the container body 14 by the downward pressing applied from the outer plug 18, and the fitting portion 38 is opened. The inner surface of the portion 16 can be securely adhered. That is, leakage of the contents L from the container body 14 can be prevented. Further, since the cap 12 can be attached to the container body 14 without rotating the inner plug 20, the generation of waste due to friction between the inner plug 20 and the opening 16 is suppressed, and the mixing of the waste into the contents L is suppressed. be able to. Further, by providing the inclined surface 30 a on the convex portion 30, the cover portion 36 of the inner plug 20 is slid between the top plate 24 of the outer plug 18 and the convex portion 30 when being attached to the container body 14, so that the cover portion 36 is It can be easily disposed between the top plate 24 of the outer plug 18 and the convex portion 30.

  Further, in the cap 12 that is rotated in the direction of the arrow A2 when being removed from the container main body 14, the side surface 36a of the covering portion 36 is caught by the engaging surface 34b of each convex portion 34 of each ratchet portion 32, and the inner plug 20 is plugged. Rotate with 18 {see FIG. 6 (b)}. Thereby, when removing the cap 12 from the container main body 14, the adhesive force between the inner plug 20 and the opening 16 can be weakened, and the inner plug 20 can be removed from the container main body 14 together with the outer plug 18 more reliably.

  In such a container 10, the contact area between the bottom surface of the covering portion 36 of the inner plug 20 and the upper edge 44 a of the opening portion 16 is obtained by using the container body 14 in which the upper end portion 44 of the opening portion 16 is formed thin. Becomes smaller. Thereby, when removing the cap 12 from the container main body 14, the adhesion between the inner plug 20 and the container main body 14 can be weakened. Therefore, the inner stopper 20 can be reliably removed from the container body 14 together with the outer stopper 18.

  Moreover, in the container main body 14, since the thickness of the upper end part 44 of the opening part 16 is made thin by making the outer diameter of the upper end part 44 small, the convex part 30 of the outer stopper 18 is large (the convex part 30 protruded greatly). A cap 12 can be used. Therefore, the inner stopper 20 can be removed from the container body 14 together with the outer stopper 18 more reliably. Moreover, since the thickness of the upper end portion 44 of the opening 16 is reduced by reducing the outer diameter, the upper edge 44a can be inserted into the bottom surface of the covering portion 36 (see FIG. 2), and the housing 14 can be accommodated. Leakage of the object L can be prevented more effectively.

  In such a container 10, the inner stopper 20 can be reliably removed from the container main body 14 together with the outer stopper 18, so that the user does not have to perform the operation of removing the inner stopper 20 remaining in the opening 16 and can be accommodated. Spilling of the object L can be prevented. Therefore, the present invention is suitably used for containers that contain dangerous drugs or expensive drugs.

  The shape of the ratchet portion is not limited to the ratchet portion 32 described above. If the inner plug can be rotated when removing the cap from the container main body without rotating the inner plug when attaching the cap to the container main body, each convex portion of the ratchet portion can be formed in an arbitrary sawtooth shape. Moreover, the number of the convex parts which comprise a ratchet part is not limited to the number of the convex parts 34 of the above-mentioned ratchet part 32, It can set arbitrarily.

  Further, a knurled portion or a ratchet portion may be provided on the inner plug covering portion so as to face the ratchet portion of the outer plug. As a result, the covering portion of the inner plug is easily caught on the ratchet portion 32, and thus the inner plug is more easily removed.

  In the above-described embodiment, the case where the thickness of the upper end portion 44 is reduced by reducing the outer diameter of the opening portion 16 has been described. However, the thickness of the upper end portion is reduced by increasing the inner diameter of the opening portion. It may be.

  Furthermore, the container L accommodated in the container main body 14 is not limited to a liquid, For example, a powdery solid may be sufficient.

It is a side view solution figure which shows an example of the container which concerns on this invention. It is a cross-sectional solution figure which shows the principal part of the container of FIG. It is a cross-sectional view solution figure which shows the outer stopper of the cap of the container of FIG. It is a bottom view solution figure which shows the outer cap of the cap of the container of FIG. It is XX (FIG. 2) cross-section solution figure of a cap. It is sectional drawing solution which shows the contact aspect of the ratchet part of an outer stopper, and the coating | coated part of an inner stopper, (a) shows the contact aspect of the ratchet part and coating | coated part at the time of attaching a cap to a container main body, (b) Shows a contact mode between the ratchet portion and the covering portion when the cap is removed from the container body. It is a side view solution figure which shows the container main body of the container of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Container 12 Cap 14 Container main body 16 Opening part 18 Outer plug 20 Inner plug 22 Cylindrical part 24 Top plate 30,34 Convex part 32 Ratchet part 36 Covering part 44 Upper end part

Claims (4)

An outer plug having a cylindrical portion, a top plate provided at one end of the cylindrical portion, and a plurality of first convex portions provided on an inner surface of the cylindrical portion, and a flexibility disposed in the outer plug A cap attached to the container main body by screwing the outer plug into the opening of the container main body,
The inner plug has a covering portion that is disposed between the top plate and the plurality of first convex portions in the outer plug and covers an upper edge of the opening,
The outer plug does not rotate the inner plug with the outer plug when attaching the cap to the container main body, and rotates the inner plug with the outer plug when removing the cap from the container main body. have a plurality of ratchet portion contacting the cover portion provided on the inner surface between said top plate and said plurality of first convex portions,
Between the first convex portions adjacent to each other in the plurality of first convex portions, a notch extending upward from the first convex portion on the inner surface is provided,
Each of the ratchet portions is disposed above each of the plurality of first convex portions,
When the cap is attached to the container body, the direction of rotating the outer plug is the A1 direction, and when the cap is removed from the container body, the direction of rotating the outer plug is the A2 direction. Are caps respectively disposed at positions closer to the notch on the A2 direction side than the notch on the A1 direction side . The cap according to claim 1, wherein each of the plurality of ratchet portions is configured by arranging a plurality of second convex portions. The cap according to claim 1 or 2 , wherein a lower corner portion of the first convex portion is chamfered. A container comprising a container main body and the cap according to any one of claims 1 to 3 attached to an opening of the container main body .

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