JP2004231245A - Plastic molded containers - Google Patents

Abstract

A portable case that can be operated with one hand and has a small lid, a lid, and a lock unit integrated.
A frame body (11) includes a body (10) and a bottom body (20). A frame (11) has a peripheral wall (113) suspended from the periphery of a top wall (112) having an opening (111) at the center, and a hinge (12) behind the peripheral wall. A small lid portion 13 composed of a small lid main body 131 covering an opening continuously provided through the small lid main body and a U-shaped fitting portion 132 formed at the tip of the small lid main body. An undercut convex portion is formed which fits with the main body, an annular convex portion 22 is formed inside the small lid main body, a fitting concave portion 134 is formed at the tip of the U-shaped fitting portion, and the bottom body portion is formed with the bottom main body 21 and the annular shape. A bottom lock portion is formed of a bottom protrusion 22, a second bottom body 23 extending outward from one peripheral edge of the bottom body, and a bottom side wall 24, and a bottom lock portion capable of fitting with the undercut protrusion is formed outside the annular bottom protrusion. A small hole 231 is formed at the end of the second bottom main body, and the bottom side wall projection 24 is formed at the end of the bottom side wall. 1 is formed, and the inside of the annular bottom convex portion and the inside of the peripheral wall of the frame body portion are fitted to each other and assembled.
[Selection diagram] FIG.

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a portable case for storing confectionery, medical supplies, miscellaneous goods, and the like that can be operated with one hand.
[0002]
[Prior art]
Conventionally, a container made of a plastic molded product of this type has a main body portion made up of separate components such as a small lid, a frame, and a lock portion.For example, in the case of a small lid, a main body and an undercut or a metal pin The main component is a fitting method (for example, see Patent Document 1).
[0003]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 2001-48210
[Problems to be solved by the invention]
For this reason, it becomes relatively expensive, and further cost reduction has been required.
[0005]
SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems relating to a one-handed plastic container in which a main body portion and a bottom body portion are fitted to each other to form a container with a lid. An object of the present invention is to provide a container in which a lock portion is integrated.
[0006]
[Means for Solving the Problems]
The invention according to claim 1 of the present invention comprises a main body portion and a bottom body portion, wherein the main body portion has a frame body portion having a peripheral wall vertically suspended downward from a peripheral edge of a top wall having an opening in the center. A small lid body that covers an opening of the top wall of the frame body portion that is continuously provided via a hinge formed at the rear upper end of the peripheral wall, and a vertical section formed at the tip of the small lid body has a U-shape. It consists of a small lid part consisting of a fitting part, an undercut convex part that fits with the bottom body part is formed near the lower end inside the peripheral wall, and fits with the edge of the top wall inside the small lid body. An annular convex portion is formed, a fitting concave portion is formed at the tip of the U-shaped fitting portion, and the bottom body portion is vertically suspended upward from a bottom body and a peripheral edge of the bottom body. An annular bottom convex portion fitted to the peripheral wall of the portion, a second bottom main body extending outward from one peripheral edge of the bottom main body, and a bottom side wall erected upward from the leading edge of the second bottom main body. A bottom lock portion is formed outside the annular bottom convex portion so as to be fitted with the undercut convex portion inside the peripheral wall of the main body portion, and a small hole is formed near the distal end edge of the second bottom main body. A bottom wall convex portion is formed at the tip of the bottom wall so as to be fittable with the U-shaped fitting concave portion in the vertical cross section, and the annular bottom is formed so as to cover the main body portion from above the bottom body portion. A plastic molded container characterized by being assembled by fitting an inside of a projection and an inside of a peripheral wall of a frame portion.
[0007]
Thus, according to the first aspect of the present invention, the main body is formed at the frame body portion having the peripheral wall suspended downward from the peripheral edge of the top wall having the opening at the center, and at the rear upper end of the peripheral wall. A small lid body that covers an opening of a top wall of the frame body portion that is continuously provided via a hinge that is provided, and a small lid portion that has a U-shaped vertical section formed at the tip of the small lid body. An undercut convex portion that fits with the bottom body portion is formed near the lower end inside the peripheral wall, and an annular convex portion that fits with the edge of the top wall is formed inside the small lid body, Since it has a structure in which a fitting concave portion is formed at the tip of the U-shaped fitting portion, integral molding is possible.
[0008]
According to a second aspect of the present invention, in the first aspect of the present invention, the surface having the U-shaped fitting section (front surface) and the surface having the hinge (rear surface) have a radius of curvature at a corner. A plastic molded container characterized by being formed differently.
[0009]
As described above, according to the second aspect of the present invention, the surface (front surface) having the U-shaped fitting section and the surface (rear surface) having the hinge having a U-shaped vertical cross section are formed by changing the radius of curvature of the corners. Therefore, the front side and the rear side of the plastic molded container can be easily distinguished.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the plastic molded container of the present invention will be described in detail with reference to the drawings.
The plastic molded container of the present invention is composed of a main body (10) and a bottom body (20) as shown in FIGS. 1, 2, 3, and 4, for example, and usually has rigidity such as polypropylene. It is produced by injection molding of a thermoplastic resin.
[0011]
The main body (10) includes a frame (11) having a peripheral wall (113) suspended downward from a peripheral edge of a ceiling wall (112) having an opening (111) in the center, and a peripheral wall (113). A small lid body (131) covering an opening of a top wall of a frame body (11) continuously provided via a hinge (12) formed at a rear upper end, and a longitudinal section formed at a tip of the small lid body. And a small lid portion (13) composed of a U-shaped fitting portion (132).
As described above, the frame portion (11) and the small lid portion (13) are connected by the hinge (12), and are formed by integral molding.
[0012]
In addition, a printing display layer can be provided on the surface of the small lid body (131) by means of direct printing or attaching a label, if necessary.
[0013]
An undercut projection (114) that fits into a bottom body (21) described later is formed inside the peripheral wall (113) and near the lower end.
Inside the small lid body (131), an annular projection (133) that fits into the edge of the top wall is formed.
A fitting recess (134) is formed at the tip of the fitting portion (132) having a U-shaped vertical section.
[0014]
The bottom body portion (20) has a bottom body (21) and an annular bottom convex portion (22) which is vertically suspended upward from the periphery of the bottom body and is fitted to the peripheral wall (113) of the frame body portion (11). And a second bottom body (23) extending outward from one peripheral edge of the bottom body (21), and a bottom side wall (24) erected upward from a leading edge of the second bottom body. .
[0015]
A bottom lock portion (221) is formed outside the annular bottom convex portion (22) so as to fit with the undercut convex portion (114) inside the peripheral wall (113) of the frame body portion (11). I have.
A small hole (231) is formed in the vicinity of the leading edge of the second bottom body (23).
At the tip of the bottom side wall (24), a bottom side wall protrusion (241) is formed so as to be fittable with a fitting concave portion (134) formed in a fitting portion (132) having a U-shaped vertical section. ing.
[0016]
The relationship between the undercut protrusion (114) formed near the lower end inside the peripheral wall (113) and the bottom lock portion (221) formed outside the annular bottom protrusion (22) is shown in FIG. 6) is not limited, and may have a shape as shown in FIG. 6B.
[0017]
The main body (10) and the bottom body (20) having such a configuration are placed so that the main body (10) is covered from above the bottom body (20). The bottom lock part (221) and the undercut convex part (114) inside the peripheral wall (113) of the frame part are fitted together and assembled to obtain the plastic molded container (1) of the present invention.
[0018]
The method of using the plastic molded container (1) will be described in detail.
By pushing the tip of the fitting portion (132) of the small lid portion (13) inward of the container, an elastic force is generated because the fitting portion (132) is formed in a U-shape, and the fitting recess (134) and the bottom side wall convex The fitting of the part (241) is released and the part can be opened.
[0019]
When the user pulls the tip end of the fitting portion (132) upward and pulls it upward, an annular shape formed inside the small lid body (13) of the small lid portion fitted to the top wall (112) of the frame body portion. The protruding portion (133) comes off, and the small lid portion (13) is opened using the hinge (12) as a support axis to expose the opening portion (111) so that the contents (30) can be easily taken out (FIG. 2). , FIG. 5).
[0020]
After the contents (30) are taken out, the small lid (13) is closed by pressing the small lid (13) downward, and the annular convex portion (133) of the small lid main body is placed on the periphery of the top wall (112). And the fitting concave portion (134) of the U-shaped fitting portion is fitted and sealed with the bottom side wall convex portion (241) of the bottom side wall, and the opening (111) is closed and cannot be opened (FIG. 4).
[0021]
【The invention's effect】
As described above, the plastic container that can be operated with one hand of the present invention can be reduced in cost and molded into a functionally sufficient container by integrally molding the main body, the small lid, and the lock portion. In addition to foods such as confectionery, it can be used as containers for medical items, miscellaneous goods and the like.
[Brief description of the drawings]
FIG. 1 is an explanatory perspective view showing one embodiment of a plastic container of the present invention.
FIG. 2 is an explanatory perspective view showing a state where a small lid portion of the plastic container of FIG. 1 is opened.
FIG. 3 is an explanatory plan view showing one embodiment of the plastic container of the present invention.
FIG. 4 is an explanatory sectional view showing one embodiment of the plastic container of the present invention.
5 is an explanatory sectional view showing a state where a small lid portion of the plastic container of FIG. 4 is opened.
FIGS. 6A and 6B are partially enlarged explanatory views showing a fitting state of a peripheral wall of a main body portion and an annular bottom convex portion of a bottom body portion.
[Explanation of symbols]
1 plastic molded container 10 main body 11 frame body 111 opening 112 top wall 113 peripheral wall 114 undercut protrusion 12 hinge 13 small lid 131 {Small lid main body 132} U-shaped fitting portion 133 ‥‥ annular convex portion 134 ‥‥ fitting concave portion 20 ‥‥ bottom body portion 21 ‥‥ bottom body 22 ‥‥ annular bottom convex portion 221 ‥‥ bottom locking portion 23 {second bottom body 231} small hole 24 {bottom side wall 241} bottom side wall projection 30} contents

Claims (2)

It consists of a main body and a bottom,
The main body is connected to a frame body having a peripheral wall extending downward from a peripheral edge of a top wall having an opening in the center and a hinge formed at a rear upper end of the peripheral wall. A small lid body that covers the opening of the top wall of the body part and a small lid part formed of a U-shaped fitting portion with a vertical cross section formed at the tip of the small lid body are formed near the lower end inside the peripheral wall. An undercut convex portion that fits with the bottom body portion is formed, an annular convex portion that fits with the edge of the top wall is formed inside the small lid body, and a distal end of the U-shaped fitting portion is fitted. A joint recess is formed,
The bottom body portion includes a bottom body, an annular bottom protrusion that is vertically suspended from a peripheral edge of the bottom body, and is fitted to a peripheral wall of the frame body portion, and a second portion that extends outward from one peripheral edge of the bottom body. A bottom wall which is formed upright from a leading edge of the second bottom body and a second bottom body, and a bottom portion which can be fitted to an undercut protrusion inside a peripheral wall of the main body outside the annular bottom protrusion; A lock portion is formed, a small hole is formed in the vicinity of the distal end edge of the second bottom main body, and a bottom side wall convex portion can be fitted to the U-shaped fitting concave portion at the distal end of the bottom side wall. Consisting of a formed configuration,
A plastic molded container which is assembled by fitting an inside of an annular bottom convex portion and an inside of a peripheral wall of a frame body portion so as to cover a main body portion from above a bottom body portion. 2. The plastic according to claim 1, wherein the surface having a U-shaped fitting section (front surface) and the surface having a hinge (rear surface) have a different radius of curvature at corners. Molded container.

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