JP2020104916A - container - Google Patents

Abstract

To provide a container in which a bottom member can be attached to a body member without covering the body member from an outside.SOLUTION: A container 1 includes a bottomed cylindrical body member 20 for storing a content, and a bottom member 30 attached to a lower end part of the body member. A concave part 23 that is recessed upward is formed on a bottom of the body member, the bottom member is provided with a convex part 31 inserted into the concave part and a claw part 35 that comes into contact with an inner peripheral surface 23a of the concave part in a state of being elastically deformed.SELECTED DRAWING: Figure 3

Description

The present invention relates to containers.

Patent Document 1 discloses a container in which a bottom member is attached to a lower end portion of a bottomed tubular main body member in which contents are stored.

Japanese Utility Model Publication No. 6-57809

In the configuration of Patent Document 1, since the bottom member covers the lower end of the main body member from the outside, a part of the side surface of the main body member is difficult to be visually recognized. Therefore, there has been a demand for a configuration in which the bottom member can be attached to the main body member without covering the main body member from the outside.

The present invention has been made in consideration of such circumstances, and an object thereof is to provide a container in which the bottom member can be attached to the main body member without covering the main body member from the outside.

In order to solve the above problems, a container according to an aspect of the present invention includes a bottomed cylindrical main body member in which contents are stored, and a bottom member attached to a lower end portion of the main body member, A concave portion that is recessed upward is formed in the bottom portion of the main body member, and the bottom member is in a state of being elastically deformed with respect to the convex portion inserted into the concave portion and the inner peripheral surface of the concave portion. The abutting claw portion is formed.

According to the above aspect, different types of bottom member and main body member can be combined according to the application of the container. Since the convex portion of the bottom member is inserted into the concave portion of the main body member, the bottom member can be attached to the main body member without covering the main body member from the outside. Further, since the claw portion is in elastically deformed contact with the inner peripheral surface of the concave portion, it is possible to prevent the bottom member from being accidentally dropped from the main body member.

Here, the main body member includes a main body tubular portion, a heel portion that extends radially inward from a lower end portion of the main body tubular portion, and a guide portion that connects the heel portion and the recessed portion, The guide portion may be gradually inclined upward as it goes radially inward.

In this case, in the state before the bottom member is attached to the main body member, even if the claw portion has a dimensional relationship in which the claw portion interferes with the inner peripheral surface of the recessed portion, by smoothly sliding the claw portion and the guide portion, The convex portion and the claw portion can be introduced into the concave portion. Therefore, the work efficiency when attaching the bottom member to the main body member can be improved.

Further, on the outer peripheral surface of the convex portion, a plurality of vertical ribs protruding outward in the radial direction and extending in the vertical direction may be formed at intervals in the circumferential direction.

In this case, since the contact area between the outer peripheral surface of the convex portion and the inner peripheral surface of the concave portion becomes small, the convex portion can be inserted into the concave portion more smoothly. Furthermore, even if there is some dimensional variation in the recess of the body member after molding, the protrusion can be inserted into the recess.

Further, the claw portion is formed along the contour of a through hole that penetrates the convex portion in the vertical direction, and the claw portion extends radially outward from the central portion of the top wall of the convex portion. May be.

In this case, when the convex portion is inserted into the concave portion, the claw portion can be elastically deformed downward. After the bottom member is attached to the main body member, if the bottom member is to be pulled out downward from the main body member, the pawl portion will be restored and deformed upward due to the frictional force acting between the pawl portion and the inner peripheral surface of the recess. To do. However, such deformation is restricted by the claw portion abutting against the inner peripheral surface of the concave portion, and as a result, the bottom member can be made difficult to separate from the main body member.

According to the above aspect of the present invention, it is possible to provide a container in which the bottom member can be attached to the main body member without covering the main body member from the outside.

It is a front view of the container concerning a 1st embodiment. It is a top view of the container of FIG. It is the longitudinal cross-sectional view which looked at the container of FIG. 1 from the III direction. It is a front view of the bottom member of FIG. 5 is a top view of the bottom member of FIG. 4. FIG. (A) is a figure which shows the state before attaching a bottom member to a main body member. (B) is a figure showing a state after attaching a bottom member to a main body member. It is a longitudinal cross-sectional view of the container according to the second embodiment.

(First embodiment)
Hereinafter, the container of the present embodiment will be described with reference to the drawings.
As shown in FIG. 1, the container 1 includes a bottomed cylindrical main body member 20 for accommodating contents, a lid member 10 for covering the main body member 20, and a bottom member 30 attached to a bottom portion of the main body member 20. Equipped with. The lid member closes the mouth 21 a of the main body member 20. The content is not particularly limited, but a liquid such as a beverage can be used, for example.

In this embodiment, the main body member 20 and the bottom member 30 are formed of the same material. Thereby, when the container 1 is discarded, it is possible to save the trouble of separating the respective parts after removing the lid member 10. As a material for the main body member 20 and the bottom member 30, for example, resin such as PET can be adopted. As a material of the lid member 10, for example, a resin such as polyethylene can be adopted.

(Direction definition)
In the present embodiment, the central axis of the main body member 20 is referred to as the container axis O. Hereinafter, the direction along the container axis O is referred to as the up-down direction, the lid member 10 side in the up-down direction is referred to as the upper side, and the bottom member 30 side is referred to as the lower side.
Further, in a plan view seen from above and below, the direction intersecting with the container axis O is called the radial direction, and the direction around the container axis O is called the circumferential direction. A cross section along the container axis O is called a vertical cross section.

The lid member 10 includes an outer wall portion 11, an annular portion 12, an inner wall portion 13, a closing portion 14, and an operating portion 15. The lid member 10 is arranged coaxially with the container axis O as a whole.
The outer wall portion 11 is formed in a tubular shape extending in the vertical direction, and is fitted into the mouth portion 21a of the main body member 20 from the outside in the radial direction. A weakened portion 11a is formed in the central portion of the outer wall portion 11 in the vertical direction. The weakened portion 11a is a slit extending in the circumferential direction, and the outer wall portion 11 can be broken along the weakened portion 11a. A fitting protrusion 11b is formed on the inner peripheral surface of the outer wall portion 11 so as to protrude inward in the radial direction. The fitting protrusion 11b is formed in an annular shape over the entire circumference of the outer wall portion 11 and is undercut-fitted to the annular protrusion formed in the main body member 20. The fitting protrusion 11b may not be formed over the entire circumference, and may be formed intermittently in the circumferential direction, for example.

The annular portion 12 extends radially inward from the upper end portion of the outer wall portion 11 and is formed in an annular shape in a plan view. The annular portion 12 is in contact with the upper end of the main body member 20 from above.
The inner wall portion 13 is formed in a tubular shape extending in the vertical direction, and extends downward from the inner peripheral edge of the annular portion 12. The inner wall portion 13 is fitted in the mouth portion 21 a of the main body member 20.
The closing portion 14 extends radially inward from the lower end portion of the inner wall portion 13, and is formed in a circular shape in a plan view. The mouth portion 21 a is closed by the closing portion 14.
As shown in FIG. 2, the operation portion 15 projects radially outward from the outer wall portion 11. As shown in FIG. 1, the operation portion 15 is adjacent to the weakened portion 11a of the outer wall portion 11 and is arranged above the weakened portion 11a.

As shown in FIG. 3, the main body member 20 has a main body cylinder portion 21, a heel portion 22, and a recessed portion 23. The main body tubular portion 21 is formed in a tubular shape extending in the vertical direction. The upper end opening of the main body tubular portion 21 is the mouth portion 21a described above. A neck ring 21b is formed on the outer peripheral surface of the main body tubular portion 21 so as to project radially outward. The neck ring 21b is formed in an annular shape in a plan view and faces the outer wall portion 11 of the lid member 10 in the vertical direction.

The heel portion 22 extends radially inward from the lower end portion of the main body tubular portion 21, and is formed in an annular shape in a plan view. The recessed portion 23 is recessed upward from the heel portion 22 and is formed in a toped tubular shape. The inner peripheral surface 23a of the recess 23 is formed in a linear shape in a vertical sectional view. In the example of FIG. 3, the inner peripheral surface 23a is parallel to the container axis O, but the inner peripheral surface 23a may be a tapered surface inclined with respect to the container axis O in a longitudinal sectional view. That is, the inner diameter of the inner peripheral surface 23a may be constant along the vertical direction or may change along the vertical direction.

A guide portion 24 is formed at the connecting portion between the concave portion 23 and the heel portion 22. The guide portion 24 is inclined from the inner peripheral edge of the heel portion 22 so as to be directed upward as it extends radially inward. As a result, the lower surface of the guide portion 24 is tapered.

The bottom member 30 has a convex portion 31, a step portion 32, a connecting portion 33, and a hakama portion 34. Each part of the bottom member 30 is arranged coaxially with the container axis O.
The convex portion 31 projects upward from the step portion 32 and is inserted into the concave portion 23 of the main body member 20. The outer diameter of the outer peripheral surface of the convex portion 31 is smaller than the inner diameter of the concave portion 23. The convex portion 31 is formed in a cylindrical shape having a top extending vertically. The step portion 32 extends radially outward from the lower end portion of the convex portion 31, and is formed in a ring shape in a plan view. The step portion 32 faces the heel portion 22 and the guide portion 24 of the main body member 20 in the vertical direction. The radially outer end of the step portion 32 projects upward.

The connection portion 33 is formed in a tubular shape extending downward from the outer peripheral edge of the step portion 32, and connects the step portion 32 and the hakama portion 34.
The hakama portion 34 is formed in a tapered cylindrical shape whose diameter gradually increases as it goes downward from the connection portion 33. The outer diameter of the lower end portion of the hakama portion 34 is larger than the outer diameter of the main body tubular portion 21 of the main body member 20. The hakama portion 34 is a portion that comes into contact with the placing surface when the container 1 is placed on the placing surface such as a desk in an upright posture (the posture shown in FIGS. 1 and 3). The hakama portion 34 can stabilize the posture when the container 1 is placed in the upright posture.

As shown in FIG. 4, a vertical rib 31 a and a claw portion 35 are formed on the convex portion 31. As shown in FIG. 5, the vertical ribs 31a and the claw portions 35 are formed in a plurality (three in the present embodiment) at intervals in the circumferential direction. The vertical rib 31a projects from the convex portion 31 toward the outside in the radial direction and extends in the vertical direction.

The claw portion 35 extends radially outward from the central portion of the top wall of the convex portion 31. The plurality of claw portions 35 extend radially from the container axis O. The radially outer end of the claw portion 35 is located radially outward of the outer peripheral surface of the convex portion 31. Therefore, the diameter of the circumscribing circle C circumscribing the radially outer end of each claw portion 35 is larger than the outer diameter of the convex portion 31. The diameter of the circumscribing circle C is larger than the inner diameter of the recess 23 of the main body member 20. As shown in FIG. 4, an inclined surface 35a is formed at the radially outer end of the claw portion 35. The inclined surface 35a faces upward and gradually extends downward as it extends radially outward.

As shown in FIG. 5, the bottom member 30 is formed with a through hole 36 that vertically penetrates the convex portion 31 and the step portion 32. The through hole 36 is formed along the contour of the claw portion 35 in a plan view. It can be said that the claw portion 35 is formed by the through hole 36. The through hole 36 has an outer hole portion 36a, a first inner hole portion 36b, and a second inner hole portion 36c. The outer hole portion 36a extends in the circumferential direction and is adjacent to the radially outer end portion of the claw portion 35 in a plan view. The first inner hole portion 36b and the second inner hole portion 36c are arranged substantially parallel to each other, and extend inward in the radial direction from the end portion of the outer hole portion 36a. In a plan view, the claw portion 35 is located between the first inner hole portion 36b and the second inner hole portion 36c.

Next, the operation of the container configured as described above will be described.

As shown in FIG. 6A, when the bottom member 30 is attached to the main body member 20, the bottom member 30 and the main body member 20 are opposed to each other in the vertical direction, and the convex portion 31 is inserted into the concave portion 23. At this time,
Since the diameter of the circumscribed circle C in FIG. 5 is larger than the inner diameter of the recess 23, the claw portion 35 and the inner peripheral surface 23 a of the recess 23 interfere with each other. However, the convex portion 31 can be smoothly introduced into the concave portion 23 by the inclined surface 35 a formed on the claw portion 35 and the guide portion 24 formed on the main body member 20. Further, since the plurality of vertical ribs 31 a are formed in the convex portion 31, the contact area between the convex portion 31 and the concave portion 23 becomes small, and the convex portion 31 can be easily inserted into the concave portion 23.

When the convex portion 31 is introduced into the concave portion 23 and the bottom member 30 is further moved upward, the claw portion 35 slides on the inner peripheral surface 23 a of the concave portion 23. At this time, since a downward frictional force acts on the claw portion 35, the claw portion 35 elastically deforms downward. When the step portion 32 of the bottom member 30 and the heel portion 22 of the main body member 20 come into contact with each other, the vertical positions of the bottom member 30 and the main body member 20 are determined, and the mounting work is completed.

After the bottom member 30 is attached to the main body member 20, if the bottom member 30 is to be pulled out downward from the main body member 20, due to the frictional force acting between the pawl portion 35 and the inner peripheral surface 23a of the recess 23, the pawl portion is formed. 35 tries to be restored and deformed upward. However, such deformation is restricted by the claw portion 35 hitting the inner peripheral surface 23a of the recess 23. As a result, the bottom member 30 is less likely to be separated from the main body member 20.

As described above, the container 1 of the present embodiment includes the bottomed tubular main body member 20 in which the contents are stored, and the bottom member 30 attached to the lower end portion of the main body member 20. Therefore, the bottom member 30 and the main body member 20 of different types can be combined according to the application of the container 1 and the like. Since the convex portion 31 of the bottom member 30 is inserted into the concave portion 23 formed in the bottom portion of the main body member 20, the bottom member 30 is not covered from the outside in the radial direction, and the bottom member 30 is attached to the main body. It can be attached to the member 20. Further, since the claw portion 35 is in contact with the inner peripheral surface 23a of the concave portion 23 in a state of being elastically deformed, it is possible to prevent the bottom member 30 from being accidentally dropped from the main body member 20.

In addition, the main body member 20 has a main body tubular portion 21, a heel portion 22 that extends radially inward from a lower end portion of the main body tubular portion 21, and a guide portion 24 that connects the heel portion 22 and the recessed portion 23. However, the guide portion 24 is gradually inclined upward as it goes radially inward. With this configuration, even if the claw portion 35 interferes with the inner peripheral surface 23a of the recess 23 in the state before the bottom member 30 is attached to the main body member 20 (FIG. 5 or 6(a)). By sliding the claw portion 35 and the guide portion 24, the convex portion 31 and the claw portion 35 can be smoothly introduced into the concave portion 23. Therefore, the work efficiency at the time of attaching the bottom member 30 to the main body member 20 can be improved.

Further, on the outer peripheral surface of the convex portion 31, a plurality of vertical ribs 31a that protrude radially outward and extend in the vertical direction are formed at intervals in the circumferential direction. With this configuration, the contact area between the outer peripheral surface of the convex portion 31 and the inner peripheral surface 23a of the concave portion 23 becomes small, so that the convex portion 31 can be inserted into the concave portion 23 more smoothly.

Further, the claw portion 35 is formed along the contour of the through hole 36, and extends radially outward from the central portion of the top wall of the convex portion 31. With this configuration, since the claw portion 35 elastically deforms downward when the convex portion 31 is inserted into the concave portion 23, the bottom member 30 can be made difficult to be separated from the main body member 20.

(Second embodiment)
Next, a second embodiment according to the present invention will be described, but the basic configuration is the same as that of the first embodiment. Therefore, the same reference numerals are given to the same configurations, the description thereof is omitted, and only different points will be described.

As shown in FIG. 7, in this embodiment, the lid member 10 is formed in a thin film shape. The main body tubular portion 21 of the main body member 20 gradually increases in diameter as it goes upward. No connection portion 33 (see FIG. 3) is formed on the bottom member 30, and a hakama portion 34 extends downward from the step portion 32.

With the cup-shaped container 1 as in the present embodiment, the same operational effect as in the first embodiment can be obtained.

The technical scope of the present invention is not limited to the above-mentioned embodiment, and various modifications can be made without departing from the spirit of the present invention.

For example, although the plurality of claw portions 35 are provided in the above embodiment, the number of the claw portions 35 may be one.
Further, in the above-described embodiment, the bottom member 30 does not cover the main body tubular portion 21 from the outside in the radial direction, but the bottom member 30 may partially cover the main body tubular portion 21.

Further, a plurality of vertical ribs (knurls) extending in the vertical direction may be formed on the inner peripheral surface 23a of the recess 23. In this case, when the bottom member 30 is twisted, it is possible to prevent the bottom member 30 from being accidentally dropped from the main body member 20.

In addition, it is possible to appropriately replace the constituent elements in the above-described embodiments with known constituent elements without departing from the gist of the present invention, and the above-described embodiments and modified examples may be appropriately combined.

DESCRIPTION OF SYMBOLS 1... Container 20... Main body member 21... Main body cylinder part 22... Heel part 23... Recessed part 23a... Inner peripheral surface 24... Guide part 30... Bottom member 31... Convex part 31a... Vertical rib 35... Claw part 36... Through hole

Claims (4)

A bottomed cylindrical main body member for accommodating contents,
A bottom member attached to the lower end of the main body member,
On the bottom of the main body member, a concave portion that is recessed upward is formed,
The container in which the convex part inserted in the said recessed part and the claw part which contacted the inner peripheral surface of the said recess in the state deformed elastically are formed in the said bottom member. The main body member includes a main body tubular portion, a heel portion that extends radially inward from a lower end portion of the main body tubular portion, and a guide portion that connects the heel portion and the recessed portion,
The container according to claim 1, wherein the guide portion is gradually inclined upward as it goes radially inward. The container according to claim 1 or 2, wherein a plurality of vertical ribs projecting outward in the radial direction and extending in the vertical direction are formed at intervals in the circumferential direction on the outer peripheral surface of the convex portion. The claw portion is formed along the contour of a through hole that vertically penetrates the convex portion,
The container according to any one of claims 1 to 3, wherein the claw portion extends radially outward from a central portion of a top wall of the convex portion.

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