JP2007253962A - Packaging container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging container integrally formed from a single plastic sheet, in particular, a packaging container that is prevented from fitting in the adjacent one and is easily detached from each other when the packaging containers are arranged in a stack. <P>SOLUTION: The packaging container is integrally formed from the single plastic sheet and has a recessed groove in an upright portion. The recessed groove extends obliquely along the upright face. This prevents the recessed groove of one of the containers in stack from coming into contact with the corners of the upper end of the upright portion of the adjacent container such that they are not in firm contact with each other. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a packaging container integrally formed from a single plastic sheet, and more particularly, to a structure of a packaging container that can be easily removed without being fitted to each other when the containers are stacked in a plurality of stages. .

  Conventionally, packaging containers that are integrally molded from a single plastic sheet are stored in simple plastic containers, refill containers for cosmetics and other products, and outer containers because they can be molded according to various product forms. It is used in a wide range of applications such as product protection containers and blister container covers.

  Such packaging containers are generally placed in a stacked state at the time of storage, transportation, etc. after being formed. When used as a packaging material as described above, from the stacked state. I had to remove them one by one.

  In order to make the removal work at the time of use easier, for example, there are provided protrusions of various shapes (concave grooves when viewed from the inside) protruding to the outer surface side of the side wall of the container (Patent Document 1). In addition, two or more different vertical ribs protruding inward / outward on the side wall surface are formed in parallel at appropriate intervals (Patent Document 2) to prevent adhesion between the overlapped containers.

  However, with respect to the former, since the packaging container formed from a single sheet is flexible, when a force is applied to the stacked containers from above, the side walls of the containers bend and the protrusions of each container (Recessed grooves) The two parts were fitted with each other, making it difficult to remove. Therefore, although it may be possible to further increase the protrusion of the container's protrusion (concave groove), it is difficult to remove the molded container from the mold, which makes it difficult to manufacture. .

  In addition, regarding the latter, it is necessary to create two or more types of plastic containers using two or more types of molding dies, or alternately stack even one type of plastic container. For example, there are problems such as inefficiency and complicated work.

3-11634 Utility registration No. 3108042

  Accordingly, the present invention relates to a packaging container that is integrally formed from a single plastic sheet and overcomes such drawbacks of conventional packaging containers. More specifically, the present invention does not fit together when the containers are stacked in a plurality of stages. An object of the present invention is to provide a packaging container that can be easily removed.

  The present invention solves the above-mentioned problems, and is a packaging container having a concave groove in a rising portion integrally formed from a single plastic sheet, the concave groove being formed in an oblique direction along the rising surface. The packaging is characterized in that, when the containers are stacked in a plurality of stages, the concave groove of one container abuts against the corner of the adjacent upper end of the other container so that the two containers can be prevented from closely contacting each other. It is a container.

  Furthermore, the present invention is a packaging container integrally formed from a single plastic sheet and having a concave groove in the rising portion, the concave groove being formed in an oblique direction along the rising surface, the rising portion being It has a top surface portion formed substantially horizontally at the upper end, and when the containers are stacked in a plurality of stages, the concave groove of one container comes into contact with the top surface portion of the other container adjacent to each other so It is a packaging container characterized by enabling prevention.

  That is, in the packaging container of the present invention, when the containers are stacked in a plurality of stages, the concave grooves are formed in an oblique direction, so the corner or top surface of the rising upper end of the packaging container on which the protruding part is stacked Abut. Therefore, even if a force is applied from above in this state, a load from above is applied to the rising part, but the load to bend in the lateral direction is reduced, and the rising part bends to fit the concave grooves of each container. I don't have to. Therefore, it can be easily removed one by one during use. Moreover, since the packaging container after shaping | molding can be easily extracted from a metal mold | die at the time of manufacture of the packaging container of this invention, manufacture is also easy.

  Hereinafter, embodiments of the packaging container of the present invention will be specifically described with reference to the drawings. Note that the present invention is not limited to these embodiments.

  1a is a plan view of a packaging container according to the present invention, FIG. 1b is a side view thereof, FIG. 1c is a front view thereof, FIG. 1d is a sectional view taken along line AA 'of the packaging container according to the present invention, and FIG. FIG. 3 is an enlarged view showing the state of contact of the concave grooves when a plurality of packaging containers according to the present invention are stacked, and FIG. 4 is another embodiment according to the present invention. FIG. 5 is a perspective view showing a state when a plurality of packaging containers according to the present invention are stacked, FIG. 6 and 7 are perspective views of other embodiments of the packaging container according to the present invention. In each figure, 1 is a packaging container body, 2 is a rising portion, 3 is a corner of the rising top, 4 is a top surface portion, 5 is a concave groove, 6 is a rising surface, 7 is a storage portion, 51 Is the lowest point of the concave groove, 52a and 52b are both ends of the concave groove, 53 is a vertical line drawn from the lowest point along the rising surface, and X is the product stored in the packaging container. Y represents a point where the vertical line 53 and the top surface portion 4 intersect, Z represents a distance between Y and the end 52a of the concave groove, and θ represents an angle of inclination of the concave groove with respect to the vertical line 53.

  As shown in FIG. 1, the packaging container body 1 of this embodiment is integrally formed from a single plastic sheet, and holds the product in the vicinity of both ends of the product to be stored between the rising portions 2. Store and hold. As can be seen from the cross-sectional view of FIG. 1d, the packaging container main body 1 has the same outer shape and inner shape, and a plurality of the containers can be stacked (FIGS. 3 to 5). In addition, as long as the rising part 2 can hold | maintain the goods accommodated in a container stably, the position, a shape, etc. will not be ask | required in particular.

  In the rising portion 2 of the packaging container of this embodiment, a concave groove 5 is formed on the side facing the product storage portion 7, and the shape thereof is obliquely downward along the rising surface 6 from the rising upper end portion. It is slightly U-shaped with a slight inclination.

  The oblique shape of the concave groove 5 will be described in more detail with reference to FIG. 2. A point Y where the vertical line 53 drawn along the rising surface from the lowest point 51 of the concave groove and the top surface portion 4 intersects the end of the concave groove. 52a or more to the right (outside the concave groove on the side close to the vertical line 53). Thus, as shown in FIG. 3, when a plurality of packaging containers according to this embodiment are stacked, the vicinity of the lowermost point 51 of the concave groove of the packaging container overlaid is the rising upper end of the adjacent container below. The contact is made in the vicinity of the corner 3 and the vertical line 53 (outside the concave groove). In addition, when the cross-sectional shape of the concave groove near the lowest point 51 is not a gentle curve as shown in FIG. 3, but formed to have a horizontal portion at the lowest point as shown in FIG. The vicinity of the lowest point 51 of the concave groove of the packaging container stacked on top is in contact with the vicinity (outside of the concave groove) where the top surface portion 4 of the adjacent lower container intersects the vertical line 53. The distance Z between the point Y and the end 52a closer to the vertical line 53 among both ends of the concave groove 5 depends on the width and length of the concave groove 5, but is preferably about 0 to 5 mm, and about 1 to 3 mm. Is more preferable.

  In such a position, the lower part of the concave groove 5 of the packaging container stacked on the upper side does not come into contact with the corner 3 or the top surface part 4 of the rising upper end of the lower packaging container and fit into the concave groove 5. Even if a force is applied from above, it does not move downward any more, so that the concave grooves of each container do not fit together.

  The angle θ of the inclination of the concave groove with respect to the vertical line 53 is not particularly limited unless the concave grooves 5 of the respective containers are fitted together when a force is applied from above with a plurality of the packaging containers of the present embodiment superimposed. However, if it is too oblique, it is expected that it will be difficult to remove from the mold at the time of manufacture. Therefore, it is desirable to form it so as not to interfere with the removal from the mold. In particular, θ is preferably about 10 to 50 degrees, and more preferably θ is about 15 to 40 degrees.

  The packaging container of this embodiment is formed such that the concave groove 5 is a recess when viewed from the front side of the container, that is, the storage part 7 side, but it does not hinder the holding of the goods stored therein. The concave groove 5 may be formed as a concave portion when viewed from the back side of the container. Furthermore, in this embodiment, the concave groove 5 is formed in the rising part 2 facing the storage part 7, but it may be formed in the rising part 2 facing the outside of the container.

  Further, as shown in FIG. 6, a plurality of concave grooves 5 may be provided in the same rising portion 2. Thus, even if it is a container with which the accommodating part is formed large and the longitudinal direction side of the standing | starting upper end part 3 is long, a mutual fitting can be prevented reliably.

  Further, FIG. 7 shows a so-called blister container formed by closely attaching (fitting, bonding) a packaging base and a container (cover) made of a transparent material such as plastic, and the concave shape of the present invention is shown in the governor. A groove 5 is formed.

  As described above, the packaging container of the present invention can be widely used for a simple plastic container, a refill container for cosmetics and other products, a product protection container stored in an outer container, a cover for a blister container, etc. It can be applied not only to packaging containers in all fields.

a is a top view of the packaging container which concerns on this invention. b is the same side view. c is a front view of the same. d is a cross-sectional view taken along the line A-A 'of the packaging container according to the present invention. The enlarged view of the concave groove formed in the standing part of the packaging container which concerns on this invention. The enlarged view which shows the mode of contact | abutting of the concave groove when the packaging container which concerns on this invention is stacked in multiple steps. The enlarged view which shows the mode of contact | abutting of the concave groove when the packaging container of another embodiment which concerns on this invention is stacked in multiple steps. The perspective view which shows the mode when the packaging container which concerns on this invention is stacked in multiple steps. The perspective view of another embodiment of the packaging container which concerns on this invention. The perspective view of another embodiment of the packaging container which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ...... Packaging container main body 2 ... Rising part 3 ...... Upper end corner 4 ...... Top part 5 ...... Concave groove 6 ...... Rising surface 7 ... Storage part 51 ...... Bottom point of concave groove 52 ...... Both ends of the concave groove 53 ... ... Vertical line drawn from the lowest point along the rising surface X ... ... Product stored in the packaging container Y ... ... The point where the vertical line 53 and the top surface part 4 intersect Z ... ... Y Distance between the end 52a of the concave groove θ... Angle of inclination of the concave groove with respect to the vertical line 53

more than

Claims (4)

  A packaging container integrally formed from a single plastic sheet and having a concave groove in the rising portion, the concave groove being formed in an oblique direction along the rising surface, and when the container is stacked in a plurality of stages, A packaging container characterized in that it is possible to prevent the two containers from coming into close contact with each other when the concave groove of the container comes into contact with the corner of the rising upper end of the other adjacent container.   A packaging container integrally formed from a single plastic sheet and having a concave groove at a rising portion, the concave groove being formed obliquely along the rising surface, and the rising portion being formed substantially horizontally at the upper end thereof When the containers are stacked in a plurality of stages, the concave groove of one container comes into contact with the top surface of the other adjacent container, thereby making it possible to prevent the two containers from sticking to each other. A packaging container characterized by.   The packaging container according to claim 1, wherein the concave groove is formed in a rising portion facing a storage portion that stores a product. When a vertical line is drawn from the lowest point of the concave groove along the rising surface, the point where the vertical line and the upper end of the rising part intersect is the end of the concave groove on the side close to the vertical line. The packaging container according to claim 1, wherein the concave groove is formed at an angle so as to be positioned outside the concave groove.

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