JP7183038B2 - container - Google Patents

Description

The present invention relates to containers.

Patent Literature 1 discloses a container in which a bottom member is attached to the lower end of a bottomed cylindrical main body member in which contents are stored.

Japanese Utility Model Laid-Open No. 6-57809

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

SUMMARY OF THE INVENTION It is an object of the present invention to provide a container in which a bottom member can be attached to a body member without covering the 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 accommodated, and a bottom member attached to the lower end of the main body member, The bottom of the body member is formed with a concave portion that is recessed upward, and the bottom member includes a convex portion inserted into the concave portion and an elastically deformed state with respect to the inner peripheral surface of the concave portion. A pawl portion that abuts is formed.

According to the above aspect, different types of bottom members and body members can be combined according to the use of the container. Further, since the protrusions of the bottom member are inserted into the recesses of the body member, the bottom member can be attached to the body member without covering the body member from the outside. Furthermore, since the claw portion abuts against the inner peripheral surface of the recess while being elastically deformed, it is possible to prevent the bottom member from unexpectedly falling off from the main body member.

Here, the main body member has a main tubular portion, a heel portion extending radially inward from a lower end portion of the main tubular portion, and a guide portion connecting the heel portion and the concave portion, The guide portion may be gradually inclined upward as it goes radially inward.

In this case, even if the claw portion interferes with the inner peripheral surface of the recess before the bottom member is attached to the main body member, the claw portion and the guide portion can be slid smoothly. The protrusions and claws can be introduced into the recesses. Therefore, it is possible to improve work efficiency when attaching the bottom member to the body member.

Further, a plurality of longitudinal ribs projecting radially outward and extending vertically may be formed at intervals in the circumferential direction on the outer peripheral surface of the convex portion.

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

In addition, the claw portion is formed along the contour of a through-hole vertically penetrating the convex portion, and the claw portion extends radially outward from the central portion of the top wall of the convex portion. may

In this case, when inserting the protrusion into the recess, the claw can be elastically deformed downward. After the bottom member is attached to the main body member, when the bottom member is pulled out downward from the main body member, the claw portion tends to deform upward due to the frictional force acting between the claw portion and the inner peripheral surface of the recess. do. However, such deformation is restricted by the contact of the claw portion with the inner peripheral surface of the recess, and as a result, it is possible to make it difficult for the bottom member to separate from the main body member.

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

1 is a front view of a container according to a first embodiment; FIG. Figure 2 is a top view of the container of Figure 1; It is the longitudinal cross-sectional view which looked at the container of FIG. 1 from the III direction. Figure 2 is a front view of the bottom member of Figure 1; Figure 5 is a top view of the bottom member of Figure 4; (a) is a figure which shows the state before attaching a base member to a main-body member. (b) is a diagram showing a state after the bottom member is attached to the body member. It is a longitudinal cross-sectional view of a container according to a second embodiment.

(First embodiment)
Hereinafter, the container of this embodiment will be described based on the drawings.
As shown in FIG. 1, the container 1 includes a bottomed cylindrical main body member 20 for containing contents, a lid member 10 covering the main body member 20, and a bottom member 30 attached to the bottom of the main body member 20. It has The lid member closes the mouth portion 21 a of the body member 20 . The contents are not particularly limited, but liquids such as beverages can be used, for example.

In this embodiment, the body member 20 and the bottom member 30 are made of the same material. As a result, when discarding the container 1, it is possible to save the trouble of sorting the parts after removing the lid member 10.例文帳に追加As the material of the body member 20 and the bottom member 30, for example, resin such as PET can be adopted. As the material of the lid member 10, for example, a resin such as polyethylene can be used.

(direction definition)
In this embodiment, the central axis of the main body member 20 is called the container axis O. As shown in FIG. Hereinafter, the direction along the container axis O will be referred to as the vertical direction, the side of the lid member 10 in the vertical direction will be referred to as the upper side, and the side of the bottom member 30 will be referred to as the lower side.
Further, in a plan view viewed from above and below, a direction intersecting the container axis O is called a radial direction, and a direction rotating around the container axis O is called a circumferential direction. A cross section along the container axis O is called a vertical cross section.

The lid member 10 has 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 to the mouth portion 21a of the main body member 20 from the radially outer side. 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 11 b that protrudes radially inward is formed on the inner peripheral surface of the outer wall 11 . The fitting projection 11b is formed in an annular shape over the entire circumference of the outer wall portion 11 and is undercut-fitted to an annular projection formed on the main body member 20 . The fitting protrusions 11b may not be formed over the entire circumference, and may be intermittently formed 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 has an annular shape in plan view. The annular portion 12 is in contact with the upper end portion of the body member 20 from above.
The inner wall portion 13 is formed in a vertically extending tubular shape and extends downward from the inner peripheral edge of the annular portion 12 . The inner wall portion 13 is fitted into 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 has a circular shape in plan view. The opening 21 a is closed by the closing portion 14 .
As shown in FIG. 2 , the operating portion 15 protrudes 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 tubular portion 21 , a heel portion 22 and a concave portion 23 . The body tubular portion 21 is formed in a tubular shape extending in the vertical direction. An upper end opening of the body tubular portion 21 is the above-mentioned mouth portion 21a. A neck ring 21 b that protrudes radially outward is formed on the outer peripheral surface of the body tubular portion 21 . The neck ring 21b has an annular shape in 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 tubular portion 21 and has an annular shape in plan view. The recessed portion 23 is recessed upward from the heel portion 22 and is formed in a truncated tubular shape. An inner peripheral surface 23a of the recessed portion 23 is formed linearly in a vertical cross-sectional view. Although the inner peripheral surface 23a is parallel to the container axis O in the example of FIG. That is, the inner diameter of the inner peripheral surface 23a may be constant along the vertical direction, or may vary 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 upward from the inner peripheral edge of the heel portion 22 as it goes 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 stepped portion 32 , a connecting portion 33 , and a skirt portion 34 . Each part of the bottom member 30 is arranged coaxially with the container axis O. As shown in FIG.
The convex portion 31 projects upward from the stepped 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 capped tubular shape extending in the vertical direction. The stepped portion 32 extends radially outward from the lower end portion of the convex portion 31 and has an annular shape in plan view. The step portion 32 vertically faces the heel portion 22 and the guide portion 24 of the body member 20 . A radially outer end of the stepped portion 32 protrudes upward.

The connecting portion 33 is formed in a tubular shape extending downward from the outer peripheral edge of the stepped portion 32 and connects the stepped portion 32 and the skirt portion 34 .
The skirt portion 34 is formed in a tapered tubular shape whose diameter gradually increases downward from the connecting portion 33 . The outer diameter of the lower end portion of the skirt portion 34 is larger than the outer diameter of the main tubular portion 21 of the main body member 20 . The hakama portion 34 is a portion that comes into contact with a placement surface such as a desk when the container 1 is placed in an upright posture (the posture shown in FIGS. 1 and 3). The posture when the container 1 is placed in an upright posture can be stabilized by the hakama portion 34 .

As shown in FIG. 4, the convex portion 31 is formed with a vertical rib 31a and a claw portion 35. As shown in FIG. As shown in FIG. 5, a plurality of vertical ribs 31a and claw portions 35 (three each in this embodiment) are formed at intervals in the circumferential direction. The vertical rib 31a protrudes radially outward from the convex portion 31 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 . A plurality of claw portions 35 radially extend from the container axis O. As shown in FIG. A radially outer end portion of the claw portion 35 is positioned radially outwardly of the outer peripheral surface of the convex portion 31 . Therefore, the diameter of the circumscribed circle C that circumscribes the radially outer end of each claw portion 35 is larger than the outer diameter of the convex portion 31 . Also, the diameter of the circumscribed circle C is larger than the inner diameter of the recess 23 of the body member 20 . As shown in FIG. 4 , an inclined surface 35 a is formed at the radially outer end of the claw portion 35 . The inclined surface 35a faces upward and extends downward as it goes radially outward.

As shown in FIG. 5, the bottom member 30 is formed with a through hole 36 that vertically penetrates the protrusion 31 and the stepped portion 32 . The through hole 36 is formed along the contour of the claw portion 35 in plan view. It can also 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 plan view. The first inner hole portion 36b and the second inner hole portion 36c are arranged substantially parallel and extend radially inward from the end portion of the outer hole portion 36a. In plan view, the claw portion 35 is positioned between the first inner hole portion 36b and the second inner hole portion 36c.

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

As shown in FIG. 6A , when attaching the bottom member 30 to the main body member 20 , the bottom member 30 and the main body member 20 are vertically opposed to each other, and the projections 31 are inserted into the recesses 23 . At this time,
Since the diameter of the circumscribed circle C in FIG. However, the inclined surface 35 a formed on the claw portion 35 and the guide portion 24 formed on the main body member 20 allow the convex portion 31 to be smoothly introduced into the concave portion 23 . In addition, since a plurality of vertical ribs 31a are formed on the convex portion 31, the contact area between the convex portion 31 and the concave portion 23 is reduced, making it easier to insert the convex portion 31 into the concave portion 23. FIG.

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

After the bottom member 30 is attached to the main body member 20, when the bottom member 30 is to be pulled downward from the main body member 20, the frictional force acting between the claw portion 35 and the inner peripheral surface 23a of the concave portion 23 causes the claw portion to move. 35 attempts to restore and deform upward. However, such deformation is restricted because the claw portion 35 abuts against the inner peripheral surface 23 a of the concave portion 23 . As a result, the bottom member 30 is difficult to separate from the main body member 20 .

As described above, the container 1 of the present embodiment includes the bottomed cylindrical body member 20 in which contents are stored, and the bottom member 30 attached to the lower end of the body member 20 . Therefore, different types of bottom member 30 and main body member 20 can be combined according to the application of the container 1 or 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 can be inserted into the main body without covering the main tubular portion 21 from the outside in the radial direction. It can be attached to member 20 . Furthermore, since the claw portion 35 abuts on the inner peripheral surface 23a of the recess portion 23 in an elastically deformed state, the bottom member 30 can be prevented from unexpectedly falling off from the main body member 20. As shown in FIG.

Further, the body member 20 has a body tubular portion 21 , a heel portion 22 extending radially inward from the lower end portion of the body tubular portion 21 , and a guide portion 24 connecting 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 concave portion 23 in the state before the bottom member 30 is attached to the main body member 20 (FIG. 5 or FIG. 6A), By sliding the claw portion 35 and the guide portion 24, the projection portion 31 and the claw portion 35 can be introduced into the recess portion 23 smoothly. Therefore, work efficiency when attaching the bottom member 30 to the main body member 20 can be improved.

A plurality of longitudinal ribs 31a projecting radially outward and extending in the vertical direction are formed on the outer peripheral surface of the convex portion 31 at intervals in the circumferential direction. With this configuration, the contact area between the outer peripheral surface of the protrusion 31 and the inner peripheral surface 23a of the recess 23 is reduced, so that the protrusion 31 can be inserted into the recess 23 more smoothly.

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, when the projection 31 is inserted into the recess 23 , the claw portion 35 is elastically deformed downward, so that the bottom member 30 can be made difficult to separate 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. For this reason, the same reference numerals are assigned to the same configurations, the description thereof is omitted, and only the points of difference will be described.

As shown in FIG. 7, the cover member 10 is formed in a thin film shape in this embodiment. A body tubular portion 21 of the body member 20 gradually expands in diameter as it goes upward. A connection portion 33 (see FIG. 3) is not formed in the bottom member 30, and a skirt portion 34 extends downward from the stepped portion 32. As shown in FIG.

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

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

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

In addition, a plurality of vertical ribs (knurls) extending in the vertical direction may be formed on the inner peripheral surface 23a of the recess 23 as well. In this case, when the bottom member 30 is twisted, it is possible to prevent the bottom member 30 from unexpectedly falling off from the body member 20 .

In addition, it is possible to appropriately replace the components in the above-described embodiment with known components without departing from the scope of the present invention, and the above-described embodiments and modifications may be combined as appropriate.

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... Protruding part 31a... Vertical rib 35... Claw part 36... Through hole

Claims (3)

a bottomed cylindrical main body member in which contents are accommodated;
a bottom member attached to the lower end of the body member;
A concave portion recessed upward is formed in the bottom portion of the main body member,
The bottom member is formed with a convex portion inserted into the concave portion and a claw portion that abuts on the inner peripheral surface of the concave portion in an elastically deformed state ,
The main body member has a main tubular portion, a heel portion extending radially inward from a lower end portion of the main tubular portion, and a guide portion connecting the heel portion and the concave portion,
The container , wherein the guide portion is gradually inclined upward as it goes radially inward . a bottomed cylindrical main body member in which contents are accommodated;
a bottom member attached to the lower end of the body member;
A concave portion recessed upward is formed in the bottom portion of the main body member,
The bottom member is formed with a convex portion inserted into the concave portion and a claw portion that abuts against the inner peripheral surface of the concave portion in an elastically deformed state,
A container , wherein a plurality of vertical ribs protruding radially outward and extending vertically are formed at intervals in the circumferential direction on the outer peripheral surface of the convex portion. a bottomed cylindrical main body member in which contents are accommodated;
a bottom member attached to the lower end of the body member;
A concave portion recessed upward is formed in the bottom portion of the main body member,
The bottom member is formed with a convex portion inserted into the concave portion and a claw portion that abuts against the inner peripheral surface of the concave portion in an elastically deformed state,
The claw portion is formed along the contour of a through hole penetrating the convex portion in the vertical direction,
The container , wherein the claw portion extends radially outward from a central portion of the top wall of the convex portion.

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