JP7387172B2 - resin container - Google Patents

Description

TECHNICAL FIELD The present invention relates to a resin container mainly useful for storing and removing solid materials.

Solid foods such as sweets and candy, and solid daily necessities such as screws and nails are sometimes stored in containers, and there are various resin containers for this purpose. Patent Document 1 discloses that an annular tapered portion extending to the opening side of a can body, and a plurality of threaded portions extending to the annular tapered portion and shorter than the entire circumference thereof are formed, and each of the threaded portions has a A resin-coated seamless can with a lid has been proposed in which the lid fitting portion sequentially rotates through the lid having a plurality of engaging lugs. Patent Document 2 proposes a food container in which the lid has a downwardly directed concave portion inside the opening of the container body, and the concave portion serves as a positioning means.

Japanese Patent Application Publication No. 2004-345694 Utility model registration No. 3132180

However, the conventional container has a problem in opening and closing the opening in order to take out the solids stored in the container body, and an improvement has been desired.

In order to solve the above-mentioned conventional problems, the present invention provides a resin container whose opening can be opened and closed simply by rotating the lid.

The resin container of the present invention is a resin container including a container body and a lid portion molded from a thermoplastic resin sheet,
The container body and the lid are connected by an outer hinge, and the hinge is perforated and can be removed;
When the perforations of the hinge are removed, the lid is rotatable relative to the container body;
The outer periphery of the lid and the upper outer periphery of the container body are circular;
The interior of the container body is a space, a part of the inner surface of the peripheral wall has an inwardly curved part, and the inwardly curved part is a flat part on which the container body and the lid come into contact,
A perforated opening is formed in the lid that abuts at least a portion of the flat part of the container body,
The perforation of the lid is cut out to form an opening, and when the lid is rotated, the opening is in a closed state at a position where it abuts the flat part of the container body, and the opening is closed in the space of the container body. When the lid is in the open position, the contents can be taken out from the opening, and when the lid is returned to its original position, the opening comes into contact with the flat part of the container body, creating a seal and closing the lid. It is characterized in that the opening can be opened or closed simply by rotating it .

In the resin container of the present invention, when the hinge and the opening are removed, the lid is rotatable relative to the container body, and when the lid is rotated, the opening comes into contact with the flat part of the container body. It is in a closed state, and when the opening is located in the space of the container body, it is in an open state. This allows the opening to be opened or closed simply by rotating the lid, and when opened, the contents can be taken out from the opening, and when the lid is returned to its original state, the opening is located inside the container body. It comes into contact with the flat part and becomes a seal. That is, it is possible to provide a resin container whose opening can be opened and closed simply by rotating the lid.

FIG. 1 is a perspective photograph of a resin container in one embodiment of the present invention. Figure 2 is a photograph of the back side. FIG. 3 is a plan view of the same with the lid opened. FIG. 4 is a plan view of the resin container with the hinge and opening perforations cut and the opening closed. FIG. 5 is a plan view of the same with the opening section open. FIG. 6 is a perspective photograph showing the upper part of the container body. FIGS. 7A and 7B are enlarged plan views showing the rotation prevention mechanism of the container body and the lid.

The resin container of the present invention includes a container body and a lid portion formed from a thermoplastic resin sheet. Examples of the thermoplastic resin sheet include a polypropylene sheet and a polyethylene terephthalate sheet. The thickness of the sheet is preferably 200 to 1000 μm. The molding is preferably compression molding (including press molding), pressure forming, vacuum forming, or a combination of these.

In the resin container of the present invention, the outer periphery of the lid and the upper outer periphery of the container body are circular, and the lid is rotatable with respect to the container body. The interior of the container body is a space, and solid or semi-solid materials can be stored therein. A part of the inner surface of the peripheral wall of this resin container is formed with an inwardly curved part, and in the inwardly curved part, the bottom of the container body is pushed up into a convex shape, and a flat part is formed at a height that matches the lid part. It is formed. At least a portion of the lid that contacts the flat portion of the container body is perforated so that it can be opened. When the perforation is cut out to form an opening and the lid is rotated, the opening will be closed when it touches the flat part of the container body, and it will be open when the opening is located in the space in the container body. state. Therefore, the opening can be opened or closed simply by rotating the lid.

The container body and lid are connected by an outer hinge, and the hinge has perforations, which can be removed by cutting along the perforations. The container body and lid are connected by an external hinge for the following reasons.
(1) Molding the container body and lid as one piece from a single resin sheet allows efficient molding.
(2) It is convenient for packaging and transportation if the container body and lid are stacked open.
(3) When the lid is closed after storing the solid material in the container body, it is closed in the fixed position. When closed in the normal position, the opening of the lid (not yet opened in this state) is in a position where it abuts the flat end of the container body. Therefore, the operation of storing solid matter in the container body and closing the lid (content storage operation) can be performed efficiently.
(4) After the contents are stored, the user removes the hinge and opens the opening of the lid. This ensures safety.

The upper surface of the container body is a flat surface, and the outer periphery of the flat surface is formed with a plurality of protrusions that protrude outward in an arc shape. Preferably, a plurality of protrusions are formed to engage with the protrusions of the main body, and the protrusions of the container body and the protrusions of the lid overlap to prevent rotation. As a result, although the lid does not rotate freely, it can be rotated sequentially by applying a small amount of force, and careless rotation can be prevented. Careless rotation may cause the contents to fall, but the resin container of the present invention can prevent this. The polygonal portion preferably has 6 to 18 sides, depending on the size of the container, and the more polygonal the portion, the finer the pitch can be to stop rotation.

The outer side of the upper surface of the container body has a flange surface that descends stepwise, a protrusion protruding outward from a part of the flange surface, and a concave groove on the lid for engaging with the protrusion. is preferably formed. The height of the projection is preferably about 0.3 to 2 mm, although it depends on the size of the container, and the length in the circumferential direction is preferably about 5 to 30 mm. The number of protrusions is preferably about 6 to 15. The concave groove of the lid is preferably a continuous groove large enough to accommodate the protrusion. Although the protrusion and the concave groove engage with each other, the lid can be firmly closed to the main container, but rotation in the circumferential direction is not inhibited.

Preferably, the container body and lid are made of transparent resin. If it is made of transparent resin, it is convenient to be able to visually see the contents. Coloring is optional.

The resin container of the present invention is useful as a container for holding solid foods such as confectionery and candy, daily necessities solid articles such as screws and nails, fishing bait, and the like. In addition, since it is easy to use, it is useful as food containers in refrigerators, small containers in warehouses, etc.

This will be explained below using examples. The invention is not limited to the examples. This will be explained below using the drawings. In the drawings below, the same reference numerals indicate the same parts. FIG. 1 is a perspective photograph of a resin container 1 according to an embodiment of the present invention, FIG. 2 is a rear view photograph of the resin container 1, and FIG. 3 is a plane photograph of the resin container 1 with the lid opened. In this resin container 1, a container body 2 and a lid part 3 are connected by a hinge 4, and the hinge 4 has a perforation 5 so that it can be removed. The outer periphery of the lid part 3 and the upper outer periphery of the container body 2 are circular. The interior of the container body 2 is a space, and a portion of the inner surface of the peripheral wall has an inwardly curved portion, and the inwardly curved portion forms a flat portion 6 on which the container body and the lid come into contact. A perforated opening 7 is formed in the lid part 3 that abuts at least a portion of the flat part 6 of the container body 2.

FIG. 4 is a plan view of the resin container with the hinge and opening perforations cut out and the opening 7 closed. FIG. 5 is a plan photograph of the same with the opening 7 opened. In this way, by rotating the lid 3, the opening 7 can be opened and closed.

FIG. 6 is a perspective photograph showing the upper part of the container body 2. The upper surface 8 of the container body 2 is a flat surface, and a plurality of protrusions projecting outward in an arc shape are formed on the outer periphery of the flat surface. The abutting part of the lid part 3 (FIG. 3) that comes into contact with the outer periphery of the upper surface of the container body also has a plurality of protrusions formed so as to engage with the protrusions of the container body. As a result, the protruding part of the container body and the protruding part of the lid overlap to prevent rotation, and the lid 3 does not rotate freely, but can be rotated sequentially by applying a little force, and inadvertent rotation can be prevented. In this example, the number of protrusions was set to 12 evenly.

The outer side of the upper surface 8 of the container body 2 has flange surfaces 9 and 10 that descend in a stepped manner, and a protrusion 11 that protrudes outward from a part of the flange surface 9 is formed. A concave groove 12 is formed in the lid 3 to engage with the protrusion 11 (FIG. 3). In this example, the height of the protrusion 11 was 0.8 mm, and the length in the circumferential direction was 16 mm. The number of protrusions 11 was eight. The concave groove 12 of the lid is a continuous groove large enough to accommodate the protrusion 11. Although the protrusion and the concave groove engaged with each other, the lid could be firmly closed on the main container, but rotation in the circumferential direction was not inhibited.

FIGS. 7A and 7B are enlarged plan views showing the rotation prevention mechanism of the container body and the lid. As shown in FIG. 7A, a plurality of protrusions 13 that protrude outward in an arc shape are formed on the outer circumference of the upper surface 8 of the container body. The abutting portion of the lid that abuts against the outer periphery of the top surface of the container body is also formed with a plurality of protruding portions 14 that protrude outward in an arc shape. When the container body and/or the lid are rotated in the direction of the arrow, as shown in FIG. 7B, the protrusion 13 of the container body and the protrusion 14 of the lid overlap to prevent rotation.

The above resin container was molded using a polyethylene terephthalate (PET) sheet having a thickness of 400 μm by pressure-air vacuum forming. The diameter of the article storage part of the main container was 100 mm, the height thereof was 35 mm, and the size of the flat part 6 of the container main body 2 was 35 mm in the maximum length from the outer periphery toward the center point as shown in FIG. In this resin container, the opening 7 can be opened and closed simply by rotating the lid 3. When opened, the contents can be taken out from the opening, and when the lid is returned to its original state, the opening 7 can be opened and closed. The portion 7 came into contact with the flat portion 6 of the container body to form a sealed state, and the opening 7 could be opened or closed simply by rotating the lid.

The resin container of the present invention is useful as a container for holding solid foods such as confectionery and candy, daily necessities solid articles such as screws and nails, fishing bait, and the like. In addition, since it is easy to use, it is useful as food containers in refrigerators, small containers in warehouses, etc.
suitable for

1 Resin container 2 Container body 3 Lid part 4 Hinge 5 Perforation 6 Flat part 7 Opening part 8 Upper surface 9, 10 of the container body Flange surface 11 Projection part 12 Concave groove part 13 of the lid part Projection part of the container body 14 of the lid part protrusion

Claims (4)

A resin container including a container body and a lid molded from a thermoplastic resin sheet,
The container body and the lid are connected by an outer hinge, and the hinge is perforated and can be removed;
When the perforations of the hinge are removed, the lid is rotatable relative to the container body;
The outer periphery of the lid and the upper outer periphery of the container body are circular;
The interior of the container body is a space, a part of the inner surface of the peripheral wall has an inwardly curved part, and the inwardly curved part is a flat part on which the container body and the lid come into contact,
A perforated opening is formed in the lid that abuts at least a portion of the flat part of the container body,
The perforation of the lid is cut out to form an opening, and when the lid is rotated, the opening is in a closed state at a position where it abuts the flat part of the container body, and the opening is closed in the space of the container body. When the lid is in the open position, the contents can be taken out from the opening, and when the lid is returned to its original position, the opening comes into contact with the flat part of the container body, creating a seal and closing the lid. A resin container characterized in that the opening can be opened or closed simply by rotating the container . The upper surface of the container body is a flat surface, and a plurality of protrusions that protrude outward in an arc shape are formed on the outer periphery of the flat surface,
The abutment part of the lid part that comes into contact with the outer peripheral part of the upper surface of the container main body also has a plurality of protrusions formed so as to engage with the protrusion parts of the container main body,
The resin container according to claim 1, wherein the protrusion of the container body and the protrusion of the lid overlap to prevent rotation. The outer side of the upper surface of the container body has a flange surface that descends in a stepped manner, and a protrusion that protrudes outward from a part of the flange surface is formed,
3. The resin container according to claim 1, wherein the lid has a concave groove for engaging with the protrusion. The resin container according to any one of claims 1 to 3 , wherein the container body and the lid are made of transparent resin.