JP2003063566A - Packaging cushioning material and container equipped with the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cylindrical closed-end packaging cushioning material, in which contents are not entangled and which can be easily removed from a container, and a container which is equipped with the cushioning material and from which the cushioning material can be easily removed. SOLUTION: Characteristically, this packaging cushioning material is formed with an axially expandable/contractible bellows 51 and provided with a cylindrical part 5 in which at least one end 6 in the axial direction is closed; and at least a part of the cylindrical part 5 is formed in such a tapered manner that a diameter is made smaller in the axial direction toward the closed end 6. Preferably, a slip stopper 43 is provided on an inner surface of the cylindrical part 5; and the depth and width of a crease of the bellows 51 are smaller than a minimum diameter of solid matter 3 to be housed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cushioning material for packaging and a container provided with the same, and more particularly to a cushioning material that holds down solid matter in the container and prevents movement of the solid matter and damage to the solid matter. And regarding containers.

[0002]

2. Description of the Related Art A bottomed cylindrical cushioning material for packaging having an axially expandable and contractible bellows and a container equipped with the same are disclosed in Japanese Utility Model Publication Nos. Sho 63-171342 and Sho 63-190040. It is disclosed. Such a cushioning material and container have the advantage that the desiccant can be put into the tubular body without involving the contents, compared with the case where a rolled plastic sheet is used as the cushioning material. .

[0003]

However, the above Japanese Utility Model Publication No. 63-171342 and Japanese Utility Model Publication No. 63-19004 are used.
The cushioning material of No. 0 is suitable for a container having the same diameter as the opening and the container, that is, a straight container having no shoulder, but a container having an opening narrower than the container, that is, Not suitable for containers with shoulders. Because, when the above-mentioned cushioning material is applied to a container having a shoulder portion, a void is formed in the shoulder portion and the contents enter into this void, so when the container is opened and the cushioning material is taken out, the contents have a bellows shape. This is because there is a problem that it will bite into the folds and pop out together with the cushioning material.

For a container having a shoulder portion, the above-mentioned actual opening 6
No. 3-190040 discloses that the bottom of the cushioning material is made larger in diameter than the container opening to press down the contents in the storage portion. However, the cushioning material is inserted at the time of packaging and at the time of opening the cushioning material. It was difficult to take out and was not practical.

In view of the above, the present invention provides a cushioning material for packaging having a bottomed cylindrical shape and a packaging cushioning material and a packaging cushioning material which can be easily taken out from the container without involving the contents therein. An object is to provide a container that can be easily taken out.

[0006]

In order to achieve the above-mentioned object, the cushioning material for packaging of the present invention comprises a tubular portion having at least one end closed in the axial direction, and at least a part of the tubular portion is It is characterized in that it is tapered so as to reduce its diameter in the axial direction toward the closed one end. Further, the packaging cushioning material of the present invention is formed with a bellows that is expandable and contractible in the axial direction, and includes a tubular portion whose at least one end in the axial direction is closed, and at least a part of the tubular portion, It is characterized in that it has a taper shape in which the diameter is reduced in the axial direction toward one closed end. This prevents the contents from getting caught
It can be easily removed from the container. The cushioning material of the present invention may be detachable from the lid of the container as a separate member from the lid of the container, or may be a member integrated with the lid of the container.

In the above-mentioned cushioning material for packaging, it is preferable that an end portion of the tubular portion opposite to the closed one end is open and a slip stopper is provided on an inner surface of the open end portion. This makes it easier to take out the cushioning material when opening the container.

In the above-mentioned cushioning material for packaging, it is preferable that the closed end of the tubular portion has a projecting surface projecting from the tubular portion. Accordingly, when the packaging cushioning material is inserted into the container, it is possible to facilitate the movement of the pressed solid matter.

The container of the present invention is a container for containing a solid material, which is provided with the above-mentioned cushioning material for packaging, and the depth and width of the folds of the bellows of the cushioning material for packaging are the solid material to be accommodated. Is smaller than the minimum diameter of. This makes it possible to more effectively prevent the solid matter contained in the container from popping out when the packaging cushioning material is removed.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings.

<First Embodiment> FIG. 1 is a side view showing a cushioning material for packaging according to a first embodiment of the present invention, and FIG. 2 is a view showing a state in which the cushioning material for packaging is inserted into a container body. Is. The container body is shown in cross section. Cushioning material 1
Is contained in the container body 2 to form the container of the present embodiment, and the solid 3 is inside the container body 2 and is the cushioning material 1.
It is housed outside.

The container body 2 has a neck portion 23 having a male screw 22 and an opening portion 21 that are screwed together with a lid (not shown), and a neck portion 23.
A shoulder portion 24 whose diameter increases from the container to the container receiving portion,
The body portion 25 has the same diameter as the maximum diameter of the shoulder portion 24, and the bottom portion 26 that closes the lower end of the body portion 25.

As the solid material 3 to be accommodated, in addition to solid agents such as tablets and capsules, the cushioning material 1 and the container of the present embodiment can be preferably used for granular confectionery such as chocolate and candy.

The cushioning material 1 has a tubular portion whose one end is closed. This tubular portion is connected to the head portion 4 of the opening 21 of the container main body 2 and is connected to the head portion 4 and can expand and contract in the axial direction. It has a body portion 5 in which a plurality of stages of bellows 51 are formed, and a bottom portion 6 which is continuous with the body portion 5 and closes one end of the tubular portion. Since the upper surface of the head portion 4 is open in the drawing, the cushioning material 1 has a bottomed tubular shape or a cup shape as a whole.

The outer peripheral surface of the head 4 is inscribed in the inner surface of the neck portion 23 of the container body 2, and is capable of advancing and retracting in the axial direction of the cylindrical body. In particular, in the present embodiment, only the uppermost end 41 of the head 4 in the drawing is inscribed in the neck portion 23 of the container body 2, and the portion 42 below the neck portion is slightly reduced in diameter so that it is slightly in contact with the neck portion 23. A gap is formed. Therefore, the friction with the neck portion 23 can be reduced, and the cushioning material 1 can be attached and detached smoothly.

The body portion 5 is connected to the head portion 4 side at the head portion 4 side.
Has a diameter substantially the same as that of, but has a taper shape in which the diameter is reduced toward the bottom portion 6 side. The lower end of the body portion 5 in the figure is buried in the solid material 3, and is pressed by the filling degree of the solid material 3 and compressed in the axial direction. Since the diameter of the body portion 5 is reduced toward the bottom portion 6 side, even if the solid matter 3 enters between the container body 2 and the body portion 5 as shown by reference numeral 3a in FIG. When the cushioning material 1 is removed from 2 in the direction of the arrow A, the solid material 3a does not catch or bite into the bellows 51 and the contents do not pop out together with the cushioning material 1.

The depth and width of the folds of the bellows 51 are determined by the size of the solid material 3 contained in the container body 2. In particular, the depth and width of the folds of the bellows 51 are preferably smaller than the minimum diameter of the solid matter 3. This allows solids 3
Does not enter the folds of the bellows as shown by reference numeral 3b in FIG. 2, for example, and when the cushioning material 1 is removed from the container body 2 in the direction of arrow A, the solid matter 3b is caught or bites into the bellows 51. Then, the contents do not pop out together with the cushioning material 1.

The bottom portion 6 is configured as a bottom surface that closes the lower end of the body portion 5 in the drawing, and particularly has a spherical protruding surface that protrudes downward in the drawing, that is, in the direction opposite to the head 4. By having a spherical shape, it is possible to facilitate the movement of the pressed solid matter when the cushioning material is inserted into the container.

Further, the shape of the bottom portion 6 is not limited to the above-mentioned gentle curved surface, and may be sharper as long as it does not adversely affect the solid matter 3 such as damage.

FIG. 3 is a sectional view taken along line III-III 'of FIG. As shown in FIG. 3, ventilation holes 61 are formed in the bottom portion 6 as needed. It is desirable that the diameter of the vent hole 61 be smaller than the minimum diameter of the solid material contained therein. Although not shown, the ventilation hole may be provided in the body portion 5. These vent holes may be provided in the process of molding, or may be post-processed with an injection needle or the like after molding. Examples of the case where the vent hole is required include a case where a desiccant or a deodorant is put inside the cushioning material, and a case where the cushioning material has elasticity and is integrally molded with the lid of the container.

Further, as shown in FIG. 3, the cushioning material 1 can be removed smoothly by providing the inside of the head 4 with a slip stopper 43 on which a finger can be placed. The anti-slip 43 is not limited to the protrusion as shown, but may be any one that increases the friction between the finger and the head 4. Therefore, protrusions having other shapes may be used, and the grooves may be formed to prevent slippage. Further, by providing a protrusion on the outer surface of the head 4,
An air escape may be secured between the outer surface of the head portion 4 and the inner surface of the neck portion 23 to facilitate the removal.

Since the cushioning material 1 of this embodiment is configured as described above, it is possible to provide an appropriate cushioning effect on the solid material 3. The strength of the buffer depends on the strength of the contents, etc.
It can be arbitrarily adjusted by adjusting the structure, material, thickness and the like of the bellows. The material of the cushioning material 1 is preferably polyethylene or the like from the viewpoint of ease of molding and price.

Further, since the cushioning material 1 is buried in the solid material 3 so that the solid material 3 is filled in the periphery of the body portion 5, 3
It can be buffered in the direction, and can exert a shock absorbing effect even when it falls sideways.

FIG. 4 is a side view showing a state in which a plurality of the cushioning materials for packaging are stacked in the axial direction. Since the cushioning material 1 has a tapered body, it has the effect that it can be compactly accommodated by stacking a plurality of bodies in the axial direction and can be set in an automated bottling device.

<Second Embodiment> FIG. 5 is a view showing a cushioning material for packaging according to a second embodiment of the present invention and a lid of a container coupled thereto, and the lid of the container is shown in cross section. In the second embodiment, the parts different from the first embodiment will be particularly described, and the description of the parts common to the first embodiment will be omitted.

The cushioning material 1 according to the second embodiment is provided at its head 4 with a convex portion 44 which is fitted with the lid 7 of the container. The convex portion 44 is provided on the outer periphery of the upper end of the head 4.

The container lid 7 has a cylindrical side wall 71 having an internal thread 72 that is screwed into the neck portion 23 of the container body 2, and a side wall 71.
And a top plate 73 for closing the upper end of the top plate 73, and a recess 74 for fitting with the projection 44 is provided between the side wall 71 and the top plate 73.

FIG. 6 is a view showing a state where the cushioning material of the second embodiment is fixed to the lid of the container, and FIG. 7 is a view showing a state where the lid having the cushioning material fixed thereto is covered on the container body. Lid 7 as above
The container body 2 is shown in cross section. By covering the container body 2 with the lid 7 to which the cushioning material 1 is fixed, the cushioning material 1 can be introduced into the container body to exert a cushioning effect, and by removing the lid 7 from the container body 2, the cushioning material 1 1 can be removed together with the lid 7.
Therefore, even when the container body 2 does not have a straight portion such as the neck portion 23, the cushioning material can be sufficiently fixed in the container body.

Further, although not shown, the cushioning material 1 may be configured to be separable into a head portion 4, a body portion 5 and a bottom portion 6. In this case, a partition or a bottom is provided at the lower end of the head 4, that is, the joint with the body 5, and the desiccant is stored inside the head 4. The joint portion between the head portion 4 and the body portion 5 is joined by a method such as fitting so that the head portion 4 and the body portion 5 do not easily come off even if an impact is received from the outside of the container before opening and are easily separated after opening. With this configuration, the body 5 and the bottom 6 can be separated from the head 4 and discarded at the time of opening the package, and the head 4 containing the desiccant can be reused while being fixed to the lid 7. Can be sealed. Since the partition or the bottom is provided at the lower end of the head 4, the desiccant does not come into contact with the solid matter contained in the container even after the body 5 and the bottom 6 are removed.

A structure in which the bellows can be expanded and contracted without being provided is also conceivable. For example, as shown in FIG. 8, even when the pleats 52 are formed in a spiral shape, they can be expanded and contracted. When closing the lid of the container while rotating it, the cushioning material also rotates and enters the container. In this case, as shown in FIG. 8, the direction of the pleats 52 is the same as the direction of the screw of the lid, so that the resistance with the contents of the container can be reduced.

Further, the cushioning material need not be stretchable.
By controlling the size of the container and the amount of contents, the required volume of the cushioning material is also determined. As an example of a cushioning material that does not expand and contract, a structure without bellows or pleats (see FIG.
(A)), a configuration in which an axial groove 53 is provided (FIG. 9).
(B)), a configuration in which the oblique groove 54 is provided (FIG. 9C) and the like are conceivable. When the bellows and the pleats are not provided, for example, as shown in FIG. 9A, the tubular portion 5 has a polygonal pyramid shape.
When providing a groove not intended for expansion and contraction (Fig. 9 (b))
(C)), The width of the groove is not particularly limited. When the lid of the container is closed while being rotated, the resistance to the contents of the container can be reduced by setting the groove 54 in the same direction as the screw of the lid as shown in FIG. 9C. When closing the lid of the container without rotating it, that is, when closing the lid by pushing it in from above, it is desirable that the groove 53 is formed in the axial direction as shown in FIG. 9B.

According to the present invention, in a tubular cushioning material having a bottom and a container provided with the same, a packaging cushioning material and a packaging cushioning material which can be easily taken out from the container without entanglement of contents. It is possible to provide a container from which the cushioning material can be easily taken out.

[Brief description of drawings]

FIG. 1 is a side view showing a cushioning material for packaging according to a first embodiment of the present invention.

FIG. 2 is a view showing a state where the cushioning material for packaging is stored in a container body.

3 is a sectional view taken along the line III-III ′ of FIG.

FIG. 4 is a side view showing a state in which a plurality of the cushioning materials for packaging are stacked in the axial direction.

FIG. 5 is a view showing a cushioning material for packaging according to a second embodiment of the present invention and a lid of a container coupled to the cushioning material.

FIG. 6 is a view showing a state in which the cushioning material of the second embodiment is fixed to a lid of a container.

FIG. 7 is a view showing a state in which the container body is covered with the lid to which the cushioning material is fixed.

FIG. 8 is a side view showing a cushioning material for packaging according to a third embodiment of the present invention.

FIG. 9 is a perspective view showing a cushioning material for packaging according to a fourth embodiment of the present invention.

[Explanation of symbols]

1 ... cushioning material for packaging, 2 ... container body, 3 ... solid material,
4 ... Head part, 5 ... Body part, 6 ... Bottom part, 7 ... Container lid,
51 ... Bellows, 43 ... Non-slip

Continued front page    (72) Inventor Masahiro Yoshida             578-6 Nakatoyooka-cho, Takasaki-shi, Gunma (72) Inventor Takemi Chiba             Fuji, 1-5-3 Yaesu, Chuo-ku, Tokyo             Building inside Meiko Sangyo Co., Ltd. (72) Inventor Hajime Masaki             In front of Karasumaru-dori Neutral Sales Ryuruma, Kyoto City, Kyoto Prefecture             Inside KYORAC Co., Ltd., 598, Machi F-term (reference) 3E066 AA68 BA01 CA01 DB01 GA01                       HA04 JA04 MA09 NA60

Claims (4)

[Claims] 1. A cylindrical part having at least one end in the axial direction closed, wherein at least a part of the cylindrical part is tapered so as to decrease in diameter in the axial direction toward the closed one end. Features cushioning material for packaging. 2. A bellows part which is formed to be expandable and contractible in the axial direction and has at least one end closed in the axial direction is provided, and at least a part of the tubular part faces the closed one end. A cushioning material for packaging, characterized in that it has a tapered shape that reduces its diameter in the axial direction. 3. The cylinder according to claim 1, wherein an end of the tubular portion opposite to the closed one end is open, and a slip stopper is provided on an inner surface of the open end. A cushioning material for packaging, which is characterized in that 4. A cushioning material for packaging according to claim 2,
A container for containing a solid material, wherein the depth and width of the folds of the bellows of the packaging cushioning material are smaller than the minimum diameter of the solid material contained therein.