JP2006001582A - Fitting container made of resin - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fitting container made of resin which can be surely fitted with a lid of a container body put on and easily opened when opening the lid. <P>SOLUTION: The fitting container consists of the container body having a container flange formed on an upper part of an external wall face of a storage part and a lid having a lid flange which can be put over the container flange of the container body to be fitted. The container flange has a cross section cut at the right angle in the extending direction showing a U-shape or an inverted L-shape. A protrusion is formed at an appropriate position on a container flange top showing the U-shape or the inverted L-shape. The lid flange has a part formed to overlap at least with the container flange top. A small hole is formed at a position corresponding to the protrusion on the container flange top on a part overlapping with the container flange top, or a radial cut hole is formed. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a resin fitting container. More specifically, the present invention relates to a resin fitting container comprising a synthetic resin container body and a synthetic resin cover body having a cover flange that can be fitted over the container flange of the container body. .

  Conventionally, many lidded containers prepared from a synthetic resin sheet by a differential pressure molding method such as a vacuum molding method or a pressure molding method have been proposed and put into practical use. This container with a seed lid is composed of a container main body and a lid, and covers the lid after storing articles in the container main body, and both are fixed by some means, and are used for transportation, storage, exhibition, etc. Is. As a means for fixing the container body and the lid, rubber bands, steplers, adhesive tapes and the like have been proposed and put into practical use. However, since these fixing means are inferior in workability, hygiene, etc., as described in Patent Document 1 (Japanese Patent Laid-Open No. 9-226769), a concave ring is formed on the flange hanging portion of the container body, and the lid There has been proposed a resin-made fitting container that can be fitted and covered with a concave ring provided on the flange hanging portion of the body.

Since the fitting container described in Patent Document 1 may have difficulty in opening the lid from the fitted state, as a container that can easily open the lid in the fitted state, There has been proposed a container having a structure in which a tongue piece is provided at an appropriate position on a flange hanging portion of a lid body, and the lid is opened by pulling the tongue piece laterally or laterally upward (Japanese Patent Laid-Open No. 2002-96851). }. However, even with this structure, when the lid is fitted to the flange portion of the container main body, it may still be difficult to open the lid.
Japanese Patent Laid-Open No. 9-226769 JP 2002-96851 A

Under such circumstances, the inventor of the present invention has completed the present invention as a result of intensive studies to provide a resin fitting container that eliminates the above-mentioned drawbacks. That is, the object of the present invention is as follows.
1. To provide a resin fitting container in which a fitting state between a flange portion of a container body and a lid body is strong and is not easily detached in use.
2. To provide a resin-made fitting container that can be easily opened from a state in which the lid of the container body is put on and fitted.

In order to solve the above-mentioned problem, in the first invention, a lid having a container body in which a container flange is formed on the upper part of the outer wall surface of the storage section, and a lid flange that can be fitted over the container flange of the container body In a fitting container composed of a body and
The container flange has a U-shaped or inverted L-shaped cross section cut at right angles to the extending direction, and a convex portion is formed at an appropriate position on the top of the container flange that exhibits a U-shaped or inverted L-shape.
The lid flange has at least a portion that overlaps the top of the container flange, and a portion that overlaps the top of the container flange, and a small hole is formed at a location corresponding to the convex portion of the top of the container flange, or A resin-made fitting container is provided, in which radial cut holes are formed.

Furthermore, in the second invention, the container body is formed with a container flange formed on the upper outer wall surface of the storage portion, and a lid body having a lid flange that can be fitted over the container flange of the container body. In the mating container,
The container flange has a U-shaped or inverted L-shaped cross section cut at right angles to the extending direction,
The lid flange has at least a portion that overlaps the top of the container flange and a lid flange flange that overlaps the lid flange flange that hangs down from the outer periphery of the container flange. A resin-made fitting container is provided in which a pair of cutouts in which the length of the collar portion is shortened are formed.

The present invention is as described in detail above, and has the following particularly advantageous effects, and its industrial utility value is extremely large.
1. The resin fitting container according to the present invention can be covered very easily by covering and pressing the lid from above the container body. In the process of being displayed, the mating state is strong and is not easily removed.
2. The resin fitting container according to the present invention makes the fitting state easy by bringing the thumb into contact with the convex shape of the container body flange part and pushing the drooping end of the lid flange part upward with another finger. The lid can be opened.
3. In the resin fitting container according to the second aspect of the present invention, a pair of notches with the length of the collar portion shortened is formed at an appropriate position of the collar hem. The fitting state can be opened more easily by touching and pushing the drooping end of the lid flange portion upward with another finger.
4). Since the resin fitting container according to the present invention can be applied to various structures such as a lid structure in which the shape of the lid bulges from the flange portion, horizontally with the flange portion, and falls from the flange portion, the utility value is extremely high. It ’s big.
5. In the resin-made fitting container according to the present invention, when the lid is made of a transparent resin, the stored item can be easily recognized.

  Hereinafter, the present invention will be described in detail. The resin-made fitting container according to the present invention includes a container main body having a container flange formed on the upper wall surface outside the storage portion, and a lid having a cover flange that covers the container flange of the container main body. The container main body and the lid may be separated from each other, or may be a structure integrally connected by a hinge portion. The container body has an inverted frustum-shaped article storage portion formed by a bottom wall surface and a side wall surface, and a container flange is formed in the opening of the container side wall surface over the entire circumference of the opening. Although the magnitude | size of an article | item storage part is based also on the use of a fitting container, it can select in the range of 50 ml-1500 ml. The planar shape of the container body is not particularly limited, and may be any of a round shape, an elliptical shape, a polygonal shape, and the like. When the container body and the lid are integrally connected by a hinge portion, and the planar shape is a round or oval container, a part of the flange is a straight line, and the hinge is connected to the straight part. If the container is formed in a polygonal shape, the hinge is formed on one side of the polygon.

  In the fitting container according to the first aspect of the present invention, the container flange has a structure in which a cross section cut at a right angle to the extending (extending) direction has a U shape or an inverted L shape. The U-shape refers to a U-shaped structure formed by the wall surface of the storage portion, the flange top portion, and the flange portion. The inverted L-shape refers to an inverted L-shaped structure formed by the wall surface of the storage portion and the top of the flange. In the following, description will be given by exemplifying a fitting container in which the container flange has a U-shaped structure.

  Although the width | variety of the container flange top part (back surface of a U-shaped dent) which exhibits a U-shaped structure is based on the magnitude | size of a fitting container, it can be selected in 2-10 mm. A container flange collar part says the part which was connected to the top part and drooped over the outer outer periphery. Although the length of this container flange collar part is based also on the magnitude | size of a fitting container, it can select in the range of 3-20 mm. The U-shape does not have to be a U-shape structure in which corners form a strict right angle, and may be rounded by notching corner portions. The housing wall surface is not provided with a depression, and a shallow depression may be provided in the middle of the container flange collar (meaning the middle of the hanging length direction) (see FIG. 1 to be described later), and no depression is provided. It may be. When a shallow depression is provided in the container flange flange, it can be fitted with a depression provided in correspondence with the lid flange flange to improve the sealing performance.

  The container flange having a U-shape formed in the opening of the container body may have a structure in which the top of the container flange is parallel to the bottom wall surface or a structure that is not parallel. As an example that is not parallel to the bottom wall surface, for example, in the case of a rectangular container, the structure in which the corner corner of the container flange is made higher than the other parts with the bottom wall surface as a reference, and the container flange top portion is waved And so on. With the latter structure, the design property of the fitting container as a whole can be improved and the commercial value can be improved at the same time, but the container main body and the lid cannot be integrally connected by the hinge portion.

  A container flange having a U-shaped container body is formed with a convex portion at an appropriate position on the top, and a hanging container flange collar is formed outside the container flange having a U-shape (see FIG. 1 below). . The appropriate position of the top portion of the container flange is not particularly limited in the position when the planar shape is a round shape, but when the planar shape is an elliptical shape, a container flange portion having a small diameter is suitable. In this case, corners are preferred. The same applies to the case where the container flange has an inverted L-shaped structure.

  The convex portion formed at a suitable position on the top of the container flange can abut a finger (mainly the thumb) when the lid is opened from a state in which a lid described later is fitted to the container body. The size, width, and height of the convex portion are preferably the same as the width of the top of the container flange, but may be about 1/3 of the width of the top. Although it depends on the size of the flange, it can be selected in the range of 0.5 to 3 mm. One convex portion is sufficient for the container body, but two convex portions may be formed. When forming two, it is preferable to form on the diagonal of a container flange on both sides of a container accommodating part.

  The skirt of the outer collar extends (extends) outward and downward. The part extended to the outside lower side fulfills the function of locking the shallow depression projecting inside the lid flange flange. The skirt of the container flange flange is structured to extend outward and downward. The structure with the hem of the collar extending outward and downward can improve the strength of the container flange collar, and after forming the container from the resin sheet by the differential pressure molding method, it is easy to punch with a punching blade. is there. The part extended to the outer lower side of the container flange flange is held by a lid flange flange that is fitted with a lid that will be described later. In addition, it is not necessary to make the collar part the same length over the whole circumference, and it can also be partially shortened from a design viewpoint.

  The lid of the fitting container has a lid flange that can be fitted over the container flange. The lid flange has at least a portion (top) overlapping the top of the container flange having a U-shape. The portion that overlaps the top of the container flange (the top of the lid flange) closely overlaps the top of the container flange and functions so that the container body and the lid just fit together. A flange is provided outside the top of the lid flange. When the container body and the lid are fitted, the lid flange flange comes into contact with the outer surface of the container flange flange and the hem of the container flange hook is locked to ensure fitting. To. In the case where a recess is provided in the outer flange portion of the container flange, the sealing performance can be improved by providing a recess corresponding to the lid flange flange portion and fitting them together.

  The portion surrounded by the opposite side of the outer flange of the lid flange {the portion that overlaps the top of the container flange (top)} is the drop lid structure (the portion surrounded by the lid flange is on the bottom wall side from the top of the container flange). Structure). In the case of a drop lid structure, the portion surrounded by the lid flange is not bulged upward and is recessed on the bottom wall side. When the lid is fitted to the container body, the lid flange is The container flange is grasped from three sides of the storage portion side, the top portion, and the flange portion. In the case where the lid flange is configured to grip the container flange from three directions, the cross-sectional shape cut at right angles to the extending direction of the lid flange is similar to the container flange. The upper portion surrounded by the lid flange of the lid body may have a dome-shaped, kamaboko-shaped structure, a planar structure, or the like that bulges upward. The planar structure is not a plane in a strict sense, and a small uneven pattern may be provided as long as it forms a plane when viewed macroscopically.

  The lid flange is formed with a lid flange flange that overlaps the container flange flange, and is a portion that overlaps the top of the container flange and forms a small hole at a location corresponding to the convex portion of the container flange top ( (See below, FIG. 1 and FIG. 2) or radial cut holes (see FIG. 3, see below). When the lid is fitted or closed to the container body, the head of the convex part provided on the top of the container flange comes out from the small hole or the cut hole. When opening the lid, the finger (mainly the thumb) is brought into contact with the head of the convex part, and the hem of the lid flange is lifted with another finger, so that the lid flange The container flange can be unlocked by unlocking the protruding portion at the bottom of the container flange collar. Therefore, the size of the small hole or the radial cut hole is set to a size that allows the head of the convex portion provided at the top of the container flange to be projected. The radial cut holes can be changed according to the type and thickness of the material, and can be provided so that four, six, and eight cuts intersect at the center, and the center of the cut hole is convex. It shall provide so that it may contact | abut to the center of a shape part.

  Even when the container flange has an inverted L-shaped structure, the structure of the lid can be the above-described structure, and a flange is formed on the lid flange, and a recess is provided in the lid flange flange. Since this dent protrudes to the lower side of the container flange, the lid flange has a structure in which the lid flange grips the top of the container flange from above and below, and the fitting can be ensured.

  In the fitting container according to the second invention of the present invention, the convex portion to the top of the container flange that is essential in the container main body according to the first invention is not essential, and the other structure is the same as the container main body according to the first invention. A similar structure can be obtained. The lid is not necessarily provided with a small hole or a radial cut hole which is essential in the lid according to the first invention, and the other structure can be a structure similar to the lid in the first invention. Although the convex part to the container flange top part is not essential, this can be provided. When the convex portion is provided at the top of the container flange, a small hole or a radial cut hole can be provided at a location corresponding to the convex portion at the top of the container flange of the lid flange.

  The lid flange in the fitting container according to the second invention, when the container flange formed in the opening of the container body exhibits a U-shape, at least a portion overlapping the container flange top portion exhibiting a U-shape, A lid flange flange that overlaps the container flange flange is formed, and a pair of notches with the length of the flange shortened are formed at appropriate positions on the bottom of the flange (see FIG. 4, described later). . The appropriate position of the skirt hem is suitable for a container flange portion having a small diameter in the case of an elliptical container, and is suitable for a corner in the case of a polygonal container (see FIG. 4 below). . When a convex part is provided on the top of the container flange, and a small hole or a radial cut hole is provided at a location corresponding to the convex part of the top of the container flange of the lid flange, the position sandwiching the top convex part It is.

  A pair of notches means that two notches are provided with an interval of 5 to 30 mm across a portion where no notches are provided, and the width and depth of the notches are the size of the fitting container. However, the width (when viewed from the side) is 5 to 20 mm, and the depth (the direction perpendicular to the width direction) is 1/10 to 1/3 of the length of the lid flange flange. Range. Although the width | variety of the part which does not provide a notch depends on the magnitude | size of a fitting container, it can be 10-50 mm. When such a notch is formed, there is no skirt in the lid flange flange, so it is easy to deform the lid flange flange, and when opening the lid from the state where the lid is fitted to the container body, The lid can be easily opened by placing the thumb on the top of the flange and pushing up the portion sandwiched between the notches of the lid flange flange with another finger. Even if a convex part is provided on the top of the container flange, and a small hole or a radial cut hole is provided at a location corresponding to the convex part of the top of the container flange of the lid flange, the lid should be opened in the same procedure. Can do.

  The resin fitting container according to the present invention is manufactured from a synthetic resin. Specific examples of synthetic resins include olefin resins such as polyethylene and polypropylene, polystyrene, styrene-acrylonitrile copolymer, high acrylonitrile copolymer, rubber reinforced polystyrene, ABS resin and other styrene resins, polyvinyl chloride, and vinyl chloride. -Vinyl chloride resins such as vinyl acetate copolymer, acrylic resins such as polymethyl methacrylate, polyester resins such as polyethylene terephthalate and polybutylene terephthalate, other polyvinyl acetate, polyvinylidene chloride, polyvinyl alcohol, polycarbonate, polyamide And so on. These synthetic resins may be uncolored or colored, and may be transparent or opaque. Further, both the container body and the lid may be transparent, the container body may be opaque and the lid may be transparent, one may be uncolored and the other may be colored.

  The resin fitting container according to the present invention can be manufactured from the above synthetic resin by an injection molding method. First, a sheet is manufactured, and from this sheet, a differential pressure molding method such as a vacuum molding method or a pressure molding method is used. Can be manufactured.

  Hereinafter, the resin fitting container according to the present invention will be described with reference to the drawings. However, the present invention is not limited to the following description examples as long as the gist thereof is not exceeded.

  FIG. 1 is a partially enlarged side sectional view of an example of a resin fitting container according to the first invention of the present invention, and FIG. 2 is a partially enlarged plan view of the lid fitting container shown in FIG. FIG. 3 is a partially enlarged schematic plan view of an example in which the lid of the lid fitting container shown in FIG. 2 is changed, and FIG. 4 is a view of the lid in the resin fitting container according to the second invention of the present invention. It is a partial enlarged plan schematic diagram of an example.

  In the figure, 1 is a polystyrene sheet having a thickness of 0.2 mm, an opening is 130 mm × 150 mm, a depth is 25 mm, a box-shaped container body, 2 is an article storage unit, 3 is a bottom wall, and 4 is a side wall. The article storage part 2 of the container is shaped like an inverted frustum. The container flange formed at the opening of the container body has a cross section cut at right angles to the extending direction by the side wall 4, the top 5 (width 5 mm) and the container flange flange 7 (length 5 mm) hanging from the outside of the top. It is designed to form a letter shape. When a shallow depression (viewed from the outside) 8 is provided in the middle of the container flange flange 7, and the shallow depression (viewed from the outside) 14 of the container flange flange is fitted into the shallow depression 8, the flange portion The fitting of can be strengthened.

  The container flange flange 9 extends outward and downward to form a container flange flange bottom 9. The strength of the container flange flange 7 can be improved by extending the container flange flange bottom skirt 9 outward and downward. As described above, if the container flange collar skirt 9 is extended downward, the container is molded from the resin sheet by the differential pressure molding method, and then punching with a punching blade becomes easy. Further, the container flange flange bottom hem 9 is locked to the back side of the shallow convex 15 formed on the lid flange flange, so that the fitting of the flange portion can be strengthened.

  A convex portion 6 is formed at an appropriate position of the container flange top 5 formed in the container main body opening. In FIG. 1, this convex part 6 is the example provided in the container flange corner. The convex portion 6 is formed in an elliptical cone shape having a maximum height of 1 mm, a major axis of 5 mm, and a minor axis of 3 mm.

  The lid body 11 is made of the same kind of polystyrene sheet as the container body, and the upper surface has a truncated pyramid shape with a height of 15 mm, and a lid flange is formed on the four sides. The lid flange is composed of at least a lid flange top 12 (width 5 mm) and a lid flange flange 13 (length 8 mm). The lid can also have a drop lid structure. In the case of a drop lid structure, the portion surrounded by the lid flange does not bulge upward and is recessed on the bottom wall side. When the lid is fitted to the container body, the lid flange is As described above, the flange is grasped from three sides of the storage portion side, the top portion, and the flange portion. Small holes 17 are formed in the lid flange top portion 12 at locations corresponding to the convex portions of the container flange top portion as illustrated in FIG. 2, or radial cut holes as illustrated in FIG. 3. 18 is formed.

  On the outer periphery of the lid flange top 12, a lid flange flange 13 that hangs downward is formed. The lid flange flange 13 contacts the outer surface of the container flange flange 7 when the container body and the lid are fitted, and locks the container flange flange skirt 9 to engage. to be certain. In the case where the shallow recess 8 (viewed from the outside) is provided in the container flange flange 7, the sealing performance can be improved by fitting the shallow recess 14 provided in the lid flange flange 13. . On the wall surface of the lid flange flange 13, a shallow convex 15 (viewed from the outside) and a lid flange flange skirt 16 are formed below the shallow recess 14. The shallow convex shape 15 locks the container flange flange skirt 9 on the back surface, and the lid flange flange skirt 16 can improve the strength of the lid flange flange 13. When opening the lid, if the thumb is brought into contact with the convex portion and the lid flange flange skirt 16 is lifted by another finger in the direction of the arrow in FIG. 1, the lid flange flange 13 is deformed. The fitting state can be easily released.

  FIG. 1 shows an example in which the container flange has a U-shape. When this is an inverted L shape, a shallow recess 14 is provided in the lid flange flange, and a shallow convex shape is formed below the shallow recess 14. 15 is not provided, and a lid flange flange skirt 16 is formed below the cover 15.

  The lid body in the fitting container according to the second invention has a structure in which a pair of notches in which the length of the collar portion is shortened is formed at an appropriate position of the collar hem. FIG. 4 is an example of a lid body in a resin fitting container according to the second invention of the present invention, and is an enlarged schematic plan view of corners having a rectangular planar shape. This is an example in which two flange notches 19 are formed with a portion corresponding to a corner of the lid flange flange skirt 16 interposed therebetween. Although the example which does not provide the small hole or the radial cut hole was shown in the lid flange top part 12, the convex part was formed in the container flange top part, and the convex part was formed in the container flange top part of the lid flange top part. As described above, a small hole or a radial cut hole can be formed at a corresponding location. When opening the lid, if the thumb is brought into contact with the top of the lid flange 12 and lifted upward from the direction of the arrow by another finger, the lid flange flange 13 is sandwiched between the pair of notches 19 Therefore, the fitted state can be easily solved.

  The resin fitting container according to the present invention is suitable for storing various foods, stationery, small toys, small tools, and the like. Examples of food include sugar beets, pickles, fruits, vegetables, various sushi, cooked rice, sandwiches, hot dogs, castellas, cakes, and the like. In particular, it is suitable for storing cakes, Japanese sweets, cookies, castellas, sandwiches, side dishes, and the like.

It is a partial expanded section side view of an example of the resin fitting container concerning the first invention of the present invention. FIG. 2 is a partially enlarged plan view schematically illustrating the lid fitting container illustrated in FIG. 1. It is the elements on larger scale plan of the example which changed the cover of the cover fitting container shown in FIG. It is the partial expanded plan schematic of an example of the cover body in the resin fitting container which concerns on 2nd invention of this invention.

Explanation of symbols

1: Container body 2: Storage part 3: Bottom wall 4: Side wall 5: Container flange top part 6: Convex part 7: Container flange flange part 8: Shallow depression 9: Container flange flange part hem 11: Cover body 12: Cover body Flange top 13: Lid flange flange 14: Shallow depression 15: Low convex 16: Lid flange flange hem 15: Lid flange top small hole 18: Radial cut 19: Radial notch

Claims (7)

In a fitting container composed of a container main body having a container flange formed on the upper outer wall surface of the storage section, and a lid having a lid flange that can be fitted over the container flange of the container main body,
The container flange has a U-shaped or inverted L-shaped cross section cut at right angles to the extending direction, and a convex portion is formed at an appropriate position on the top of the container flange that exhibits a U-shaped or inverted L-shape.
The lid flange has at least a portion that overlaps the top of the container flange, and a portion that overlaps the top of the container flange, and a small hole is formed at a location corresponding to the convex portion of the top of the container flange, or A resin-made fitting container in which radial cut holes are formed. The container flange has a U-shaped cross section cut at right angles to the extending direction, and a container flange flange portion is formed on the outer side of the container flange that exhibits the U-shape.
The lid flange includes at least a lid flange top portion that overlaps the container flange top portion and a lid flange flange portion that overlaps the container flange flange portion, and a container flange is formed on the entire circumference or a part of the lid flange flange portion. The resin-made fitting container according to claim 1, wherein a depression is formed to hold a skirt of the collar portion from the outside.   The resin-made fitting container according to claim 1 or 2, wherein a planar shape of the fitting container is a polygon, and convex portions are formed at corners of the container flange. In a fitting container composed of a container main body having a container flange formed on the upper outer wall surface of the storage section, and a lid having a cover flange that can be fitted over the container flange of the container main body,
The container flange has a U-shaped or inverted L-shaped cross section cut at right angles to the extending direction,
The lid flange has at least a portion that overlaps the top of the container flange and a lid flange flange that overlaps the lid flange flange that hangs down from the outer periphery of the container flange. A resin-made fitting container comprising a pair of notches in which the length of the collar portion is shortened. The container flange has a U-shaped cross section cut at right angles to the extending direction, and a container flange flange portion is formed on the outer side of the container flange that exhibits the U-shape.
The lid flange has at least a lid flange top portion that overlaps the container flange top portion and a lid flange flange portion that overlaps the container flange flange portion. The resin-made fitting container according to claim 4, wherein a recess is formed to hold the skirt of the collar portion from the outside.   A convex portion is formed at an appropriate position on the top of the container flange, and a small hole is formed on the lid flange at a position corresponding to the convex portion on the top of the container flange, or radial cut holes are formed. The resin fitting container according to claim 4 or 5, which is formed.   The resin-made fitting container according to any one of claims 4 to 6, wherein a planar shape of the fitting container is a polygon, and convex portions are formed at corners of the container flange.

Images