JP3474480B2 - Packaging container - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging container which is closed by fitting a base and a lid, and more particularly to a packaging container which can easily release the closure of the base and the lid. Regarding

[0002]

2. Description of the Related Art FIG. 4 shows a conventional container in which a left side and a right side of a center line of the drawing are sectional views and a side view, respectively. The container 1 shown in FIG. 4 has a lid 2 on the Z1 side in the figure and a base 3 on the Z2 side in the figure.
The contents 4 such as Western confectionery and Japanese confectionery are packaged.

The lid 2 is made of, for example, colorless and transparent polyethylene terephthalate (hereinafter referred to as PET) resin and has a concave cross section, and the inside thereof serves as a housing portion 2c. Reference numeral 2a indicates a side portion of the lid body 2, and an end portion in the Z2 direction in the drawing is an opening portion 2b. At the edge of the opening 2b, a fitting receiving portion 2d is formed which is slightly widened from the center side of the lid body 2 toward the side portion 2a.

On the other hand, the base 3 is made of a colorless transparent or milky white PET resin. A pedestal portion 3a is formed on the base 3, and a knob portion 3b protruding in the Z2 direction is formed at the center thereof. Alternatively, a knob portion that annularly protrudes in the Z2 direction is formed. Further, the edge of the pedestal portion 3a is bent, and the tip end of the pedestal portion 3a extends outwardly.
It is c.

The contents 4 are placed on the pedestal portion 3a of the base 3, and the lid 2 is covered from above the drawing from above (Z2 direction). At this time, the fitting piece 3c of the base 3 is attached to the lid 2
Of the fitting receiving portion 2d, and the fitting piece 3c presses the fitting receiving portion 2d outward. As a result, the lid 2
And the base 3 are fitted together, and the contents 4 are packaged inside the container 1.

A consumer who purchases Western confectionery or the like packaged in such a container 1 holds the grip portion 3b of the base 3 with one hand and holds the side portion 2a of the lid 2 with the other hand, These are separated in mutually opposite directions. As a result, the lid 2
The fitting between the base 3 and the base 3 is released, and the contents 4 packaged inside the container 1 are taken out.

[0007]

However, in the above-described conventional container 1, the fitting piece 3c of the base 3 is the fitting receiving portion 2 of the lid 2.
Since the structure is fitted by pressing d in the lateral direction, the following inconvenience is likely to occur due to an error in the finished dimension of the fitting piece 3c.

For example, when the outer dimension of the fitting piece 3c is smaller than the inner diameter dimension of the fitting receiving portion 2d, the space between the fitting piece 3c of the base 3 and the fitting receiving portion 2d of the lid 2 is set. Since a clearance is formed more than necessary and the degree of close contact of the fitting is lowered, the lid 2 is detached from the base 3 during transportation of the product and the container 1
The contents 4 may fall from the inside.

On the other hand, when the outer dimension of the fitting piece 3c of the base 3 is larger than the inner diameter of the fitting receiving portion 2d of the lid body 2, the degree of close fitting is too high and the packaging work becomes difficult. Cheap. Further, when the consumer removes the contents 4 from the container 1, if the lid 2 and the base 3 are separated from each other with an excessive force, the contents 4 jump out of the container 1 with excessive force, and the shape of the contents 4 There is a risk of breaking.

Further, the lid 2 is not fitted as described above, but the lid 2 is simply covered from above the base 3, and the lid 2 and the base 3 are joined together.
There are also things that fix and with adhesive tape. However, the adhesive tape in this case is fixed at both ends of the portion where the lid 2 and the base 3 are fitted to each other, or the lid 2 and the base 3 are fixed.
Since and are wound so as to make one round around the fitted container 1, there is a problem that the packaging and opening operation of the container 1 becomes complicated. The present invention is to solve the above-mentioned conventional problems, and an object thereof is to provide a packaging container in which the fitting between the lid and the base can be easily released.

[0011]

The present invention is provided in a base and a lid for closing a space on the base, and a fitting portion between an outer peripheral surface of the base and an opening edge portion of the lid. A packaging container that has a locking means, and the lid body is stopped on the base by the locking of the locking means when the opening edge of the lid is fitted to the outer peripheral surface of the base. The locking means includes an inclined portion provided on one of the base and the lid, and a locking convex portion provided on the other side and locked by the inclined portion, and the inclined portion is a base. When the lid is rotated in one direction with respect to the base, it is formed so that the fitting between the lid and the base can be released.
Both the base and the lid are provided with guide locking means formed by alternately repeating the concave and convex portions in the rotation direction, and the convex portions of the guide locking means of the base are provided. when the recess of the guide locking means of the lid are overlapped, which said inclined portion and the locking projections mutually engaged, the inclined
Part forms a guide locking means for one of the base or lid
Is located below the concave portion, and the locking convex portion is formed on the other guide member.
It is characterized in that it is located below the convex portion forming the stopping means .

In the packaging container of the present invention, when the lid is rotated in one direction, the locking means formed between the lid and the base is released, so that the fitted state can be easily released. it can. Further, by this rotation, the lid can be lifted in the direction away from the base, so that the container can be easily opened.

The packaging container according to the present invention is mainly for packaging the contents (for example, Western confectionery) placed on the base by a lid, and according to this container, the contents in the container are It is possible to take out an object while maintaining its original shape without deforming it.

When used as a packaging container for, for example, soft ice cream or ice cream, if a cone is housed inside the base, or if the base itself is formed of a cone, it can be used in the case of Western confectionery. Similarly, the lid can be removed without changing the shape of the contents such as soft serve ice cream.

[0015]

[0016] In the above, among the base and the lid, the stopper engaging portion is provided on one, when the other of said inclined portion and the locking protrusion is engaged, the stopper It is preferable that a detent portion that fits into the locking portion is provided.

In the above means, the stopper locking portion formed on the base or the lid is engaged with the detent portion of the lid or the base to prevent the lid from rotating in the disengaging direction. be able to. Therefore, for example, it is possible to prevent the lid from being accidentally removed during transportation.

For example, it is preferable that the guide locking means is formed in a wavy shape. According to the above means, when the lid is rotated in one direction, the guide locking means on the base side is guided by the guide locking means on the base side, and the lid can be fitted to the base. When the lid is rotated in the opposite direction, the guide locking means on the base side is guided by the guide locking means on the base side to release the fitting, and the lid is guided in a direction away from the base. be able to.

The fitting state can also be obtained by pressing the lid body in the closing direction so as to approach the base so that the concave portion of the guide locking means on the base side and the convex portion of the guide locking means on the lid side engage with each other. At this time, the guide locking means can be used as a mark for alignment.

Further, in the above packaging container, it is preferable that the base and the lid are formed of one plate-shaped sheet. The packaging container in the present invention is, for example, PE.
It can be formed by using a plate-like sheet made of T resin, but it is also possible to form it by using a plate-like sheet made of vinyl chloride, for example. And in this case, the packaging container of the present invention can be formed by pressure forming or vacuum forming. Alternatively, it is also possible to form by using both pressure forming and vacuum forming techniques.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a lid and a base that constitute a packaging container according to the present invention, FIG. 2A is a side view of the lid, and FIG. 2B is a side view of the base. 1 and 2
The packaging container 11 shown in (A) and (B) is a container whose purpose is to maintain the aesthetics of contents such as Western confectionery such as decorated cakes and Japanese confectionery so as not to be impaired during transportation. It is composed of a lid 20 and a base 30.

The lid 20 has an accommodating portion 21 formed in a concave shape in cross section and can cover the space above the base 30. The lid 20 is made of a colorless and transparent material such as PET resin or thermoplastic resin such as vinyl chloride. Lower end of the side portion 22 of the lid body 20 in the figure (Z2 direction)
The side is an opening 23, and a fitting portion 24 is formed at the edge of the opening 23. The fitting portion 24 is divided into an upper fitting portion 24a and a lower fitting portion 24b. The outer diameter dimension of the lower fitting portion 24b is slightly larger than the outer diameter dimension of the upper fitting portion 24a, and the upper fitting portion 24a and the lower fitting portion 24b.
A step is formed between and.

Inside the lower fitting portion 24b,
A plurality of inclined portions (locking means) 25 projecting in the central axis OO ′ direction of the lid body 20 are formed at a predetermined arrangement angle θ around the central axis OO ′ (see FIG. 1). When the rotation direction of the lid body 20 is the α1-α2 direction shown in FIG. 1, each inclined portion 25 has a higher upstream end side in the rotation direction α1 in the Z1 direction,
It is formed with a predetermined inclination angle φ (see FIG. 2A) from the edge of the opening 23 so that the downstream end side becomes lower in the Z2 direction. Further, at least at one location where the plurality of inclined portions 25 are formed, the same direction as the direction of the central axis OO ′ (Z
Direction) is formed.
The stopper engaging portion 26 is formed so as to project in the direction of the central axis OO ′, like the inclined portion 25.

The upper part of the upper fitting portion 24a (Z1 side)
The guide locking means 27 having an uneven shape is provided around the side portion 22. 1 and 2A, the guide locking means 27 has a corrugated shape in which a convex portion 27a protruding in the Z2 direction and a concave portion 27b protruding in the Z1 direction are repeated. The period of this wave shape, that is, the interval between the adjacent convex portions 27a and 27a is set to be the same as the arrangement angle θ of the inclined portion 25. Therefore, the inclined portion 25 is provided at a position below the recess 27b of the guide locking means 27.
Alternatively, the stopper locking portion 26 is located.

Incidentally, as shown in FIG.
Between the a and the recess 27b, there is a guide inclined portion 27c which is downwardly inclined to the right and a guide inclined portion 27 which is upwardly inclined to the right.
It is d. In addition, the guide slanted portion 27 that rises to the right
The inclination angle of d is substantially the same as the inclination angle φ of each inclined portion 25 formed on the lower fitting portion 24b.

On the other hand, the base 30 is made of a thermoplastic resin such as PET resin or vinyl chloride. Figure 2 (B)
As shown in FIG. 3, the central portion of the base 30 is a pedestal 31 on which the contents 14 such as Western confectionery are placed, and the outer peripheral side surface of the pedestal 31 is a fitting portion 32. This fitting portion 32 is also the upper fitting portion 3
2a and a lower fitting portion 32b. Upper fitting part 3
The outer diameter of the lower fitting portion 32b is slightly larger than the outer diameter of 2a, and the upper fitting portion 32a and the lower fitting portion 32 are
A step is formed between this and b.

A plurality of locking protrusions (locking means) 33 each having a substantially triangular shape are formed on the outer peripheral surface of the lower fitting portion 32b so as to project outward. The locking projections 33 are formed at the same arrangement angle θ (angle interval centered on the central axis OO ′) as the inclined part (locking means) 25 formed on the lid 20. . In addition, the oblique side 3 of the locking protrusion 33
3a is formed with the same inclination angle φ as the inclined portion 25. Further, the edge portion on the α1 side of the locking convex portion 33 is a detent portion 33b extending in the Z direction.

At the upper end (Z1 side) of the upper fitting portion 32a,
A guide locking means 34 having an irregular shape is provided around the circumference.
1 and 2B, the guide locking means 34 has a wavy shape in which a convex portion 34a protruding in the Z1 direction and a concave portion 34b protruding in the Z2 direction are repeated, and adjacent convex portions are formed. Between 34a and 34a, the same arrangement angle θ as between the adjacent convex portions 27a of the guide hooking means 27 of the lid 20 and between the convex portions 27a is set. The locking projection 33 is formed below the projection 34a of the guide locking means 34.

As shown in FIG. 2B, the convex portion 34
Between the a and the recess 34b, there is a guide inclined portion 34c which is downwardly inclined to the right and a guide inclined portion 34d which is upwardly inclined to the right.
Has become. A flange portion 35 is formed on the lower portion of the outer peripheral surface of the base 30, and a convex handle 36 is formed on a part of the flange portion 35.

The lid 20 and the base 30 are integrally formed from a single plate-like sheet made of an amorphous resin such as PET (A-PET). For example, it is manufactured by vacuum forming or pressure forming, or using both vacuum forming and pressure forming techniques. If the thickness of the plate-shaped sheet is too thin, the container itself tends to be crushed, and if it is too thick, it tends to be difficult to form the sheet.
Those having a thickness of about m to 1.2 mm are used.

The closing operation and the lid opening operation of the packaging container 11 configured as above will be described. FIG. 3 is an enlarged side view of the vicinity of the fitting portion of the lid and the base, (A) shows a state before fitting or after unfitting, (B) shows a status during fitting or unfitting, (C) shows the state at the time of completion of fitting. 3A to 3C, the solid line or the alternate long and short dash line indicates the lid 20 side, and the dotted line indicates the base 30 side. Further, α1 and α2 indicate the rotation direction of the lid body 20, α1 indicates the closing (fitting) direction, and α2 indicates the opening lid (unfitting) direction.

First, the operation of closing the packaging container 11 will be described. First, the contents 14 are placed on the base 30. Then, from above the opening 23 of the lid 20 to the base 3
The base 20 is covered with the lid 20 toward the 0 side. In addition,
At this time, when the lid body 20 is covered so that the center line O-O 'of the lid body 20 is aligned with the center line O-O' of the base 30, the content 14 collides with the side portion 22 of the lid body 20. Can be avoided.

When the opening 23 of the lid 20 is brought closer to the base 30 side, the fitting portion 24 of the lid 20 is externally fitted to the outer peripheral surface of the fitting portion 32 of the base 30. At this time, as shown by the alternate long and short dash line in FIG. 3 (A), the guide inclined portion 27c of the guide locking means 27 of the lid 20 and the guide inclined portion 34c of the base 30 are in contact with each other (second state). ), Or as shown by the solid line in FIG. 3 (A), the convex portion 27a of the guide locking means 27 of the lid 20 and the convex portion 34a of the guide locking means 34 of the base 30 are in contact with each other (first 1 state). Alternatively, as shown in FIG. 3B, the guide inclined portion 27d of the guide locking means 27 of the lid 20 is in contact with the guide inclined portion 34d of the base 30 (third state).

In the first state (solid line in FIG. 3 (A)), the lid 20 is pressed in the direction of approaching the base 30 (Z2 direction in the drawing), and at the same time the base 30 is fixed. Only the lid 20 is rotated in the α1 direction or the α2 direction in the figure. As a result, the lid 20 and the base 30 are placed in the second state (one-dot chain line in FIG. 3A) or the third state (FIG. 3).
(B)).

When the lid 20 is pressed toward the base 30 in the second state or the third state, the guide locking means 27 on the lid 20 side and the guide locking means 34 of the base 30 slide. Guided by the guide locking means 27 as shown in FIG.
And 34 overlap. At this time, the inclined portion 2 of the lid 20
5 is locked to the lower side (Z2 side in the figure) of the oblique side portion 33a of the locking convex portion 33 of the base 30. This can prevent the lid 20 and the base 30 from being separated from each other in the Z direction.

Further, as shown in FIG. 3C, the lid 2
The stopper locking portion 26 formed in 0 is the detent portion 33.
It is locked to b. As a result, the rotation of the lid body 20 in the opening direction (the α2 direction in the drawing) is restricted, so that the lid body 20
The base 30 and the base 30 can be locked.

Alternatively, the lid body 20 is rotated in either direction with respect to the base 30 and the lid body 20 is rotated in accordance with the guidance of the guide locking means 27 and the guide locking means 34.
If pushed in the direction, the slanted portion 25 of the lid 20 will be
Of the stopper locking portion 26.
Can be locked with the detent portion 33b of the base 30 by fitting.

With the above operation, the fitting portion 24 of the lid body 20 of the packaging container 11 can be brought into the closed state fitted into the fitting portion 32 of the base 30, so that the packaging container 11 is packaged. It is possible to prevent the shape of the contents 14 from collapsing. At the same time, since the lid 20 and the base 30 can be locked, it is possible to prevent a problem such that the lid 20 and the base 30 are separated during transportation.

Next, the operation of opening the packaging container 11 will be described. To open the packaging container 11, the handle 36 of the base 30 is fixed with one hand. This fixing method can be performed, for example, by placing the packaging container 11 on a horizontal table and pressing the handle 36 against the table. Then, with the other hand, the side portion 22 of the lid 20
Hold and rotate the entire lid 20 in the α2 direction in the figure,
The guide locking means 27 of the lid 20 slides on the guide locking means 34 of the base 30 to guide the lid 20 in the direction away from the base 30 (Z1 direction).

At the same time, the inclined portion 25 formed on the lid 20 is moved in the direction of the arrow P in the drawing from the position on the lower side (Z2 side in the drawing) of the oblique side portion 33a of the locking projection 33 of the base 30. To be Further, the stopper locking portion 26 moves from the position of the detent portion 33b of the base 30 in the P direction in the figure to ride over the locking projection 33. That is, the inclined portion 25 of the lid 20
It is possible to simultaneously release the locked state between the slanted side 33a of the base 30 and the locked state between the stopper locking portion 26 of the lid 20 and the slanted side 33a of the base 30.

As described above, when the lid body 20 is rotated in the α2 direction in the figure, the lid body 20 and the base 30 which are in the third state shown in FIG. ), It is possible to shift to the first or second state (opened state) shown in FIG. 3 (A). Then, by pulling up the lid body 20 in the opened state as it is in the Z1 direction in the drawing, the contents 14 placed on the base 30 are placed.
Can be taken out.

For example, birthday cake or X'm
When packaging a cake having a large outer diameter such as an as cake, it is difficult to hold the lid 20 of the packaging container 11 with one hand. Therefore, as shown by the dotted line in FIG. 1, a handle 28 similar to the handle 36 provided on the base 30 side is formed on the outer periphery of the opening 23 of the lid 20, and the handle of the lid 20 is attached to the base 30. 28 is rotated in the α2 direction. Accordingly, it is possible to easily open the lid 20 and the base 30 in the same manner as described above.

Further, in the above embodiment, the inclined portion 25 and the stopper locking portion 26 are formed on the lid 20, and the base 3
Although the locking protrusion 33 is formed at 0, contrary to this embodiment, the locking protrusion is formed at the lid 20, and the base 30 has the inclined portion and the stopper locking portion. It may be formed.

[0044]

According to the present invention described in detail above, the lid and the base can be easily opened by simply rotating the lid in one direction.

[Brief description of drawings]

FIG. 1 is a perspective view showing a lid and a base that constitute a packaging container according to the present invention,

2A is a side view of a lid, FIG. 2B is a side view of a base, FIG.

FIG. 3 is an enlarged side view in the vicinity of a fitting portion of a lid and a base, (A) shows a state before fitting or after unfitting, (B) shows a state during fitting or unmating, ( C) shows the state at the time of completion of fitting,

FIG. 4 shows a conventional container, in which a left side and a right side of a central line are cross-sectional views and side views, respectively.

[Explanation of symbols]

11 packaging containers 20 lid 22 side 23 opening 24 Fitting part 25 Inclined part (locking means) 26 Stopper locking part 27 Guide locking means 30 base 32 Fitting part 33 Locking convex part (locking means) 33a hypotenuse 33b detent 34 Guide locking means 36 handle

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B65D 43/12

Claims (4)

(57) [Claims] 1. A base and a lid for closing a space on the base, and locking means provided at a fitting portion between an outer peripheral surface of the base and an opening edge of the lid. A packaging container in which the lid is stopped on the base by the locking of the locking means when the opening edge of the lid is fitted to the outer peripheral surface of the base, wherein the locking means is A sloped portion provided on one of the base and the lid and a locking projection provided on the other side and locked by the sloped portion, wherein the sloped portion forms a lid with respect to the base. When it is rotated in the direction, it is formed in such a direction that the fitting between the lid and the base can be released, and recesses and protrusions are alternately provided in the turning direction on both the base and the lid. A guide locking means formed by repeating is provided, and when the convex portion of the guide locking means of the base and the concave portion of the guide locking means of the lid are overlapped with each other. , Which with the inclined portion and the locking projections mutually engaged, the inclined portion, one of the guide locking means of the base or lid
Located below the concave portion that forms the
Be positioned below the convex part that forms the guide locking means of
And a packaging container characterized by: 2. The stopper locking part when one of the base and the lid is provided with a stopper locking part and the other is locked with the inclined part and the locking projection. packaging container according to claim 1, wherein the detent portion fitted to the part is provided. Wherein said guide engaging means, the packaging container according to claim 1 or 2, wherein are formed into the wavelike shape. Wherein said base and lid are one packaging container according to any one of claims 1 to 3 is formed from a sheet plate.