JP5705587B2 - Container with cap - Google Patents

Description

  The present invention relates to a container with a cap including, for example, a container main body that stores medicines, foods, and the like, and a cap that is detachably screwed to a mouth portion of the container main body to close a storage space inside the container main body. .

  For example, a container body that stores medicines such as tablets, capsules, syrups, etc., or foods in a form conforming to these, for example, the container body to prevent foreign matter such as dust and dust from entering the container body. A screw part is formed on the outer side surface of the mouth part and the inner side surface of the peripheral wall of the cap, and the cap is screwed and held in the container body to close the storage space of the container body.

  By the way, this kind of container has a possibility that a foreign material may enter from the clearance gap between a cap and a container main body by various factors, and various techniques have been proposed conventionally. As such a technique, for example, as shown in Patent Document 1, a skirt-like elastic piece is provided on the inner side of a cap, and an outward flange that comes into contact with the elastic piece is formed at the mouth of the container body. There are some which try to prevent the cap from loosening by protruding the portion further outward.

  On the other hand, the container body is usually made of glass or synthetic resin, and the cap is usually made of synthetic resin, and variations in product shape in processing and molding are inevitable. For this reason, even when the cap has been tightened to the end and no looseness has occurred, a gap may be formed between the threaded portions, and foreign matter may enter through this gap. For this reason, regardless of variations in the product shape of the container main body and the cap, the appearance of a container with a cap that can reliably prevent entry of foreign matter into the container main body has been strongly desired.

Japanese Utility Model Publication No. 55-115959

  An object of the present invention relates to a container with a cap including a container main body having a storage space for storing contents, and a cap that is detachably screwed to a mouth portion of the container main body to close the storage space inside the container main body, The present invention proposes a technique that can surely prevent foreign substances from entering the container body regardless of variations in the product shape of the container body and the cap.

The present invention includes a container body having a mouth portion with an opening at the top and a content storage space inside thereof, and a peripheral wall surrounding the mouth portion, and the peripheral wall is detachably attached to the mouth portion. A cap-equipped container provided with a cap that stops and closes and holds the storage space of the container body,
The cap has an annular body that is suspended from the opening edge of the peripheral wall and is integrally connected to the peripheral wall;
The mouth portion includes a neck ring that protrudes toward the inner wall surface of the annular body and whose outer peripheral surface extends along the axial direction of the container body,
Provided on the outer peripheral surface of the neck ring is an upper convex portion that protrudes toward the annular body and comes into contact with the inner peripheral surface of the annular body. Provided with a lower convex portion that is located below and protrudes toward the neck ring and contacts the outer peripheral surface of the neck ring,
The upper convex portion and the lower convex part, both Ri annular projection der to close the spacing between the mutual and annular body and said neck ring,
The annular body bends radially outward when the upper convex portion abuts on the inner peripheral surface of the annular body and the lower convex portion abuts on the outer peripheral surface of the neck ring. the der Rukoto those pressed against the inner peripheral surface and outer peripheral surface opposed to the convex portion is a cap attachment container according to claim.

  The present invention integrally connects an annular body suspended from the opening edge of the peripheral wall of the cap to a cap that is detachably screwed to the mouth of the container body and closes the storage space of the container body. A neck ring that protrudes toward the inner wall surface of the annular body is formed at the mouth, and an upper convex portion that projects toward the annular body is provided on the neck ring. An annular convex portion that is located below the portion and has a lower convex portion that projects toward the neck ring and that closes at least one of the upper convex portion and the lower convex portion between the annular body and the neck ring. It is said. Thereby, even when a gap occurs in the threaded portion between the container main body and the cap, the annular convex portion comes into contact with either the annular body or the neck ring, and it is possible to close the gap between them. Intrusion of foreign matter into the storage space can be prevented. Moreover, when the cap is in the mounting completion posture, the user can feel a click feeling, and the user can expect to screw the cap all the way to the end, resulting in the cap not being fully closed. Occurrence of foreign matters can also be suppressed.

  In addition, when both the upper and lower convex portions are annular convex portions, the gap between the annular body and the neck ring can be closed by two convex portions, so that the storage space can be more reliably contained. It is possible to prevent foreign matter from entering.

It is a side view of the container with a cap according to this invention, Comprising: While showing a part with sectional drawing, it is a figure which expands and shows the principal part.

Hereinafter, the present invention will be described more specifically with reference to the drawings.
FIG. 1 is a side view of a container with a cap according to the present invention, showing a part thereof in a sectional view and an enlarged view of a main part thereof. Note that FIG. 1 shows the cap installation completion posture in which the cap is screwed into the container body to the end.

  In FIG. 1, 1 is a container main body and 2 is a cap. In the illustrated example, the container main body 1 is formed by connecting a cylindrical mouth portion 1c to a body portion 1a with a bottom portion via a shoulder portion 1b, and a storage space M for storing contents inside the container main body 1. Is forming. As the material of the container body 1, for example, glass can be used in addition to the synthetic resin. In the following description, “upper” means the direction from the bottom of the container body 1 toward the mouth 1c, and “lower” means the opposite direction.

As shown in the enlarged view of FIG. 1, the mouth portion 1 c of the container main body 1 is provided with a screw engaging portion n _{1 on} its outer wall surface. Also on the bottom side of the container main body 1 than the screw engagement portion n ₁ is the neck ring 1d comprising an annular are formed. The outer peripheral surface of the radially outer neck ring 1d is not a cylindrical ring outer peripheral wall 1d ₁ along the axis direction of the container body 1, radially outward to an intermediate portion of the ring outer peripheral wall 1d ₁ A protruding upper protrusion 1d ₂ is formed. Here, the upper convex portion 1d ₂ may be an annular convex portion that is annular along the circumferential direction, or is intermittently disposed along the circumferential direction (a shape in which the annular convex portion is divided in the circumferential direction). ) Intermittent convex portions may be used, but at least one of the upper convex portion 1d ₂ and the lower convex portion provided on the annular body of the cap described later is an annular convex portion.

  The cap 2 includes a disk-shaped top surface wall 2a that covers the top of the mouth portion 1c, and an annular peripheral wall 2b that hangs around the mouth portion of the container body 1 from the edge of the top surface wall 2a. As a material for the cap 2, a synthetic resin is generally used.

A screw engaging portion n ₂ corresponding to the screw engaging portion n ₁ of the container body 1 is formed on the inner wall surface of the peripheral wall 2b. Further, on the outer wall surface of the peripheral wall 2b, a finger hook portion H (knurl) in which convex and concave portions extending along the axial direction of the container body 1 are alternately arranged along the circumferential direction is formed. Then, the opening edge 2b ₁ of the peripheral wall 2b, an annular body 2c which is a thin-walled are integrally connected than the peripheral wall 2b.

Here, a downward projecting portion 2c ₂ is formed on the inner wall surface 2c ₁ of the annular body 2c. Here, the lower convex portion 2c ₂ may be an annular convex portion or an intermittent convex portion, but as described above, at least one of the upper convex portion 1d ₂ and the lower convex portion 2c ₂ is an annular convex portion. Yes. The lower projecting portion 2c _2, of the ring outer peripheral wall 1d _1, protrudes toward the portion positioned below the upper protruding portion 1d _2. To the outer diameter of the ring outer peripheral wall 1d _1, since the inner diameter of the top of the lower projecting portion 2c ₂ is slightly smaller, both in contact without a gap over the entire circumference. On the other hand, the outer diameter of the top of the upper projecting portion 1d ₂ provided in the neck ring 1d, so is slightly larger to the inner wall surface 2c ₁ of the inner diameter of the annular body 2c, the two even without a gap over the entire circumference It is in contact.

Further, a convex portion 2a ₁ protruding toward the top wall 1c ₁ of the mouth portion 1c is provided on the back surface of the top wall 2a. It is in contact. In addition, on the back surface of the top panel wall 2a, have annular ribs 2d which are suspended from the radially inner side than the convex portion 2a ₁ is provided, the tip portion 2d ₁ of the ribs 2d are bent toward the radial inner side Is provided. The outer diameter of the annular rib 2d, since slightly larger than the inner diameter of the inner wall surface 1c ₂ mouth 1c, both here abuts without a gap over the entire circumference.

In capped vessel as the above configuration, is rotated in the required direction (e.g., clockwise) of the cap 2 to the container body 1, the threaded engagement portion n ₁ and the screw engagement portion n ₂ Togakakari The cap 2 is screwed together. Here, since at least one of the upper convex portion 1d ₂ of the neck ring 1d and the lower convex portion 2c ₂ of the annular body 2c is an annular convex portion, the inner wall surface 2c ₁ or the ring outer peripheral wall 1d ₁ facing each other. It can contact | abut without a clearance gap and can close the clearance gap between each other. Thereby, the storage space M of the container main body 1 can be sealed irrespective of the gap resulting from the variation in product shape, which is unavoidable when forming the screw engaging portions n ₁ and n ₂ .

The annular body 2c is because it can flex radially outwardly to a thin, out of the neck ring 1d of the upper convex portion 1d ₂ or annulus 2c of the lower projecting portion 2c _2, which is towards the annular projection The storage space M of the container body 1 can be reliably sealed by increasing the protruding amount and applying more strongly to the opposing surface.

Here, when the cap 2 is screwed into the cap mounting completion posture, the lower convex portion 2c ₂ of the annular body 2c gets over the upper convex portion 1d ₂ of the neck ring 1d, thereby giving a click feeling to the user. be able to. Thereby, since the user can expect to screw the cap 2 to the end, it is possible to suppress the entry of foreign matter due to the cap 2 not being closed. Further, when both the upper convex portion 1d ₂ and the lower convex portion 2c ₂ are annular convex portions, they are in contact with the inner wall surface 2c ₁ and the ring outer peripheral wall 1d ₁ , respectively, and are sealed at two locations. Thus, the storage space M of the container body 1 can be sealed more reliably.

Further, in the completely mounted position of the cap, the top wall 1c ₁ and the convex portion 2a ₁ of the cap 2 of the mouth portion 1c abuts the inner wall surface 1c ₂ ribs 2d and the mouth part 1c is in contact. Thereby, the storage space M of the container main body 1 can be sealed more reliably. Note that the adhesion can be enhanced by applying the inner wall 1c ₂ more strongly, but even if the outer diameter of the annular rib 2d is increased, the tip 2d ₁ of the rib 2d is bent radially inward. Therefore, the rib 2d does not get in the way when the cap 2 is screwed.

  According to the present invention, the present invention relates to a container with a cap including a container body having a storage space for storing contents, and a cap that is detachably screwed to the mouth of the container body to close the storage space inside the container body. Regardless of variations in the product shape of the container body and the cap, it is possible to reliably prevent foreign matter from entering the container body.

DESCRIPTION OF SYMBOLS 1 Container body 1a Body part with bottom 1b Shoulder part 1c Mouth part 1d Neck ring 1d ₁ Ring outer peripheral wall 1d ₂ Upper convex part 2 Cap 2a Top surface wall 2b Peripheral wall 2b ₁ Open edge 2c Annular body 2c ₁ Inner wall surface 2c ₂ Below Convex part 2d Rib n ₁ screw engaging part n ₂ screw engaging part M Storage space

Claims (1)

A container body having an opening at the top and having a content storage space inside, and a peripheral wall surrounding the opening, and the peripheral wall is detachably screwed to the opening. A cap-equipped container comprising a cap for closing and holding the storage space of the container body,
The cap has an annular body that is suspended from the opening edge of the peripheral wall and is integrally connected to the peripheral wall;
The mouth portion includes a neck ring that protrudes toward the inner wall surface of the annular body and whose outer peripheral surface extends along the axial direction of the container body,
An upper convex portion is provided on the outer peripheral surface of the neck ring so as to protrude toward the annular body and abut against the inner peripheral surface of the annular body, and the annular body has a lower position than the upper convex portion when the cap is mounted. Provided with a downward projection that protrudes toward the neck ring and contacts the outer peripheral surface of the neck ring,
The upper convex portion and the lower convex part, both Ri annular projection der to close the spacing between the mutual and annular body and said neck ring,
The annular body bends radially outward when the upper convex portion abuts on the inner peripheral surface of the annular body and the lower convex portion abuts on the outer peripheral surface of the neck ring. capped container, characterized in der Rukoto those pressed against the inner peripheral surface and outer peripheral surface opposed to the convex portion.

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