JP4029600B2 - Highly sealed container - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a highly sealed container that can be easily attached and detached by an elderly person, a child, a sick person, and a woman who have a relatively small opening / closing torque force of the cap and weak force.
[0002]
[Prior art]
Conventionally, a container for storing contents that are easily affected by humidity and oxygen, for example, a partition plate having a plurality of through-holes is provided below the inside of a container main body to which a cap is screwed, and a desiccant is put below. Cylindrical containers that contain solid pharmaceutical products that are susceptible to humidity above must be highly sealed to avoid the effects of humidity and oxygen from the outside air, and the cap is securely screwed into the mouth of the container body. In order to attach, the cap was screwed to the container body with a strong tightening torque.
[0003]
[Problems to be solved by the invention]
However, when the cap is screwed onto the mouth portion of the container body with a strong tightening torque as described above, a strong opening torque force is required when the cap is unscrewed from the mouth portion of the container body. For this reason, it has become a container that is difficult to handle for older people, children, sick people and women who are relatively weak. In addition, even if the cap is firmly screwed into the mouth of the container body with a strong tightening torque, the cap may loosen due to temperature changes, vibration, impact, etc. during the distribution and storage process. . Further, when the cap is screwed into the mouth of the container main body, it has been unclear how strong it is necessary to screw the cap in order to obtain high sealing performance.
[0004]
An object of the present invention is to solve the above-mentioned conventional problems, and the opening and closing torque of the cap to the container body is relatively small, and it is easy to handle even for elderly people, children, sick people and women, and is screwed into the mouth of the container body. It is an object of the present invention to provide a highly sealed container in which the cap is not loosened during the distribution / storage process and the screwing completion position of the cap can be clearly seen.
[0005]
[Means for Solving the Problems]
That is, the first invention of the present invention is a plastic container comprising a container main body and a cap for inserting the inner plug under the inner top plate. The container main body has a male screw on the outer peripheral surface of the mouth. A pedestal ring is provided below the male screw, a locking protrusion having a right side surface of a vertical cross section is provided on the lower upper surface of the lower end of the male screw of the pedestal ring, A locking protrusion perpendicular to a predetermined position below the screw is provided, and the inner plug has an outer sealing ring having a gap between the outer peripheral surface of the mouth and the inner peripheral surface of the container body on the lower surface of the outer peripheral edge of the top plate. A contact sealing ring that is in close contact with the top surface of the mouth of the container main body is suspended on the bottom surface of the top plate inside the outer sealing ring, and the bottom surface of the top plate inside the contact sealing ring is An inner sealing ring that is in close contact with the inner peripheral surface of the mouth of the container body is suspended, The cap is provided with a female screw on the inner peripheral surface of the peripheral wall, a notch portion that is detachably fitted to the lock protrusion of the container main body is provided in the vicinity of the lower tip of the female screw, and the container is provided on the lower surface of the peripheral wall. A locking protrusion having a vertical cross section is provided on the left side surface that contacts the right side surface of the locking protrusion of the main body, and when the cap is screwed onto the container body, the locking protrusion of the container body can be seen from the outside. A knurl-less portion indicating a screwing completion position is provided on the outer peripheral surface of the cap located above the locking projection, and a vertical knurl is continuously provided on the outer peripheral surface of the peripheral wall other than the knurl-free portion. It is a highly sealed container characterized.
[0006]
Next, the second invention of the present invention is characterized in that the gap between the outer peripheral surface of the mouth of the container body and the inner peripheral surface of the outer sealing ring of the inner plug is less than 0.2 mm. 1 is a highly hermetic container according to the first aspect of the present invention;
[0007]
Next, a third invention of the present invention is the highly sealed container according to the first invention or the second invention, characterized in that the material of the inner plug is a soft material.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the high density container of the present invention will be described in detail with reference to the drawings.
FIG. 1A is a perspective view showing a structure of a cap and an inner stopper of a high-density container according to an embodiment of the present invention, and FIG. 1B is a perspective view showing a structure of the container body. FIG. 2 is a perspective view showing the appearance of the high-density container, and FIG. 3 is an explanatory view showing a state in which the notch portion of the female screw of the cap is fitted to the lock projection of the container body, FIG. 4 is a partial cross-sectional view showing a state of the sealing structure when the inner plug with respect to the mouth of the container body is normal, and FIG. 5 shows the state of the sealing structure when the inner stopper with respect to the mouth of the container body is contracted. It is a fragmentary sectional view shown. FIG. 6 is a graph showing the relationship between the tightening angle of the cap and the torque generated when the cap is screwed onto the container body.
[0010]
As shown in FIGS. 1A and 1B, the high-density container of the present embodiment is a container composed of a cap (300), an inner plug (200), and a cylindrical container body (100). As shown in FIG. 2, the cap (300) for inserting the inner plug under the inner top plate is placed at a predetermined screwing completion position of the pedestal ring (130) at the mouth of the container body (100). To be fitted. The container body is injection-molded using a thermoplastic resin such as polyethylene, polypropylene, or polyethylene terephthalate. The cap is for injection-molding a thermoplastic resin such as polypropylene, and the inner plug is for injection-molding a soft thermoplastic resin such as low-density polyethylene.
[0011]
As shown in FIG. 1 (b), the container body (100) has a structure in which a male screw (120) is provided on the outer peripheral surface of the mouth (110), and a base ring (130) is provided below the male screw. A locking protrusion (140) whose right side surface is a vertical cross section is provided on the lower upper surface of the lower end of the male screw of the pedestal ring, and a locking protrusion (150) perpendicular to a predetermined position below the male screw on the outer peripheral surface of the mouth. ).
[0012]
Further, as shown in FIG. 1 (a) or FIG. 4, the inner plug (200) has a structure in which a cap (300) is screwed onto the container body (100) on the lower surface of the outer peripheral edge of the top plate (210). When the outer sealing ring (220) having a gap (d) of less than 0.2 mm between the outer peripheral surface and the inner peripheral surface of the mouth (110) of the container body is suspended, A contact sealing ring (230) is provided on the lower surface of the top plate (210) so that the tip is in close contact with the upper surface of the mouth of the container body. An inner sealing ring (240) that closes the outer peripheral surface to the surface is suspended.
[0013]
Further, as shown in FIG. 1 (a) or 3, the cap (300) has a structure in which a female screw (330) is provided on the inner peripheral surface of the peripheral wall (320), and is located at a position near the lower tip of the female screw. A notch (340) that fits into the lock projection (150) of the container body when screwed into the container body (100) is provided, and the lower surface of the peripheral wall (320) is shown in FIG. 1 (a) or FIG. As shown, a locking projection (350) is provided in which the left side surface contacting the right side surface of the locking projection (140) of the container body (100) has a vertical cross section.
[0014]
When the cap for inserting the inner plug is screwed into the mouth of the container body, the tip of the contact sealing ring of the inner plug is in close contact with the upper surface of the mouth of the container body, and at the same time, The product is designed so that the right side surface and the left side surface of the locking projection of the container body are in contact with each other, and the vertical locking protrusion (150 provided below the male screw on the outer peripheral surface of the mouth of the container body described above. ) Is provided so that the notch portion of the cap is fitted simultaneously when the locking projection of the container body and the locking projection of the cap come into contact with each other. The product is designed to such an extent that it can be removed with an appropriate opening torque when it is unscrewed from the container body, and so that it does not come off due to an external force in the distribution / storage process. Further, as shown in FIG. 4, an inner stopper locking ring (380) with a height to which the inner stopper (200) can be normally attached and detached is provided above the inner peripheral surface of the cap (320). In addition, when the cap is completely screwed onto the container body, a knurlless portion indicating the screwing completion position is provided on the outer peripheral surface of the cap located above the locking projection of the container main body, and the peripheral wall other than the knurlless portion is provided. A vertical knurl is provided continuously on the outer peripheral surface.
[0015]
The high-sealing container of this embodiment described above has a left-side cross section of the locking projection provided on the lower surface of the peripheral wall of the cap when the cap for inserting the inner plug under the top plate is screwed to the mouth of the container body. The notch of the external thread (330) on the inner peripheral surface of the peripheral wall (320) of the cap (300) is simultaneously brought into contact with the right cross section of the locking projection provided on the upper surface of the base ring of the container body, as shown in FIG. The part (340) is detachably fitted to the lock protrusion (150) on the outer peripheral surface of the mouth part (110) of the container body (100) to complete the screwing. Since the cap is fitted to the above-described locking projection and lock projection of the container body, the cap does not rotate in the screwing direction any more. When the cap is screwed into the container body by hand, the notch of the male thread of the cap has a click feeling (clicking feeling) when fitted into the lock projection of the container body. In the cap provided with a knurled portion indicating the screwing completion position on the outer peripheral surface of the peripheral wall, the screwing completion position can be clearly determined by eyes.
[0016]
Further, in the highly sealed container of the present embodiment, the relationship between the tightening angle of the cap and the generated torque when the cap is screwed to the container body is as shown in the graph of FIG. Gradually rising from the start of screwing with the male screw of the main body (A), and when the outer peripheral surface of the inner sealing ring of the inner plug inserted into the cap and the inner peripheral surface of the mouth of the container main body are in close contact (B) It rises sharply, and further rises when the tip of the contact sealing ring of the inner stopper and the top surface of the mouth of the container body are in close contact (C), but the tip of the contact sealing ring of the inner stopper and the mouth of the container body When the close contact with the upper surface is sufficient, the left cross-section of the cap locking protrusion is in contact with the right cross-section of the locking protrusion of the container body, and the notch of the male screw on the cap locks the container body. The cap does not rotate in the screwing direction when it is fitted to the protrusion. Because, never cap is screwed in more strong clamping torque forces. Therefore, when the cap is screwed off from the mouth of the container body, a strong opening torque force is not required.
[0017]
Further, as shown in FIG. 4, the highly sealed container (10) of the present embodiment has an inner plug (200) placed on the top plate (310) at the mouth (110) of the container body (100) filled with the contents. ) When the cap (300) to be inserted below is screwed, a gap (d) of less than 0.2 mm is provided between the outer peripheral surface of the mouth of the container body and the inner peripheral surface of the outer sealing ring (220). It has been. Therefore, the container body is sealed by the contact sealing ring and the inner sealing ring of the inner stopper. Then, as shown in FIG. 5, when the inner plug (200) contracts (arrow) due to changes in heat or environment, the inner peripheral surface of the outer sealing ring (220) is the mouth (110) of the container body (100). ) It adheres to the outer peripheral surface and assists in lowering the degree of adhesion of the outer peripheral surface of the inner sealing ring (240) to the inner peripheral surface of the mouth of the container body. If the gap between the outer peripheral surface of the mouth of the container body and the inner peripheral surface of the outer sealing ring is larger than 0.2 mm, the inner peripheral surface of the outer sealing ring is May not adhere to the outer peripheral surface of the mouth.
[0018]
【The invention's effect】
When the cap is screwed into the mouth of the container body, the cap is not tightened with a tightening torque more than necessary, and therefore the cap is screwed into the mouth of the container body. Does not require strong opening torque force. For this reason, even elderly people, children, sick people and women are easy to handle.
[0019]
When the cap is screwed into the mouth of the container body, the high-tightness container of the present invention makes contact with the locking projection of the cap and the locking projection of the container body. Since the portion is fitted to the lock protrusion of the container body, the cap does not loosen during the distribution / storage process.
[0020]
In addition, it can be seen that when the cap is screwed into the mouth of the container body by hand, the screwing of the cap is completed by the click feeling and the recognition by the eyes.
[Brief description of the drawings]
FIG. 1A is a perspective view of a cap and an inner stopper of a highly-sealing container according to an embodiment of the present invention, and FIG. 1B is a perspective view of a container body.
FIG. 2 is a perspective view of a highly sealed container according to an embodiment of the present invention.
FIG. 3 is an explanatory view showing a state in which a notch portion of a female screw of a cap is fitted to a lock protrusion of a container body.
FIG. 4 is a partial cross-sectional view showing a state of the sealing structure when the inner stopper with respect to the mouth portion of the container body is normal.
FIG. 5 is a partial cross-sectional view showing a state of the sealing structure when the inner stopper with respect to the mouth portion of the container body contracts.
FIG. 6 is a graph showing the relationship between the tightening angle of the cap and the torque generated when the cap is screwed onto the container body.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Highly sealed container 100 ... Container main body 110 ... Mouth part 120 ... Male screw 130 ... Base ring 140 ... Locking protrusion 150 ... Locking protrusion 200 ... Inner plug 210 ... Top plate 220 ... ... outer sealing ring 230 ... contact sealing ring 240 ... inner sealing ring 300 ... cap 310 ... top plate 320 ... peripheral wall 330 ... female screw 340 ... notch 350 ... locking projection 360... Knurled 370... Knurled portion 380.

Claims (3)

A plastic container comprising a container main body and a cap for inserting the inner plug under the inner top plate. The container main body is provided with a male screw on the outer peripheral surface of the mouth, and a pedestal ring below the male screw. A locking protrusion whose right side surface is a vertical cross section is provided on the lower upper surface of the lower end of the male screw of the pedestal ring, and a locking protrusion perpendicular to a predetermined position below the male screw on the outer peripheral surface of the mouth The inner plug has an outer sealing ring suspended from the lower surface of the outer peripheral edge of the top plate, with a gap between the outer peripheral surface of the mouth and the inner peripheral surface of the container body, and the inner side of the outer sealing ring. A contact sealing ring that is in close contact with the upper surface of the mouth portion of the container body, and an inner surface that is in close contact with the inner peripheral surface of the mouth portion of the container body. A sealing ring is suspended, and the cap has a female screw on the inner peripheral surface of the peripheral wall. A notch that is detachably fitted to the lock projection of the container body is provided in the vicinity of the lower end of the female screw, and the right side surface of the locking projection of the container body is abutted on the lower surface of the peripheral wall. A locking projection having a vertical cross section on the left side surface in contact is provided , and when the cap is screwed onto the container body, the locking projection of the container body is visible from the outside and is positioned above the locking projection. A highly-sealing container characterized in that a knurled portion indicating a screwing completion position is provided on the outer peripheral surface of the cap, and a vertical knurling is continuously provided on the outer peripheral surface of the peripheral wall other than the knurled portion . The highly sealable container according to claim 1, wherein a gap between the outer peripheral surface of the mouth of the container main body and the inner peripheral surface of the outer sealing ring of the inner plug is less than 0.2 mm.   The highly sealable container according to claim 1 or 2, wherein the material of the inner plug is a soft material.

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